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[dotfiles/.git] / .config / coc / extensions / node_modules / coc-tsserver / node_modules / typescript / lib / tsc.js
diff --git a/.config/coc/extensions/node_modules/coc-tsserver/node_modules/typescript/lib/tsc.js b/.config/coc/extensions/node_modules/coc-tsserver/node_modules/typescript/lib/tsc.js
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+/*! *****************************************************************************
+Copyright (c) Microsoft Corporation. All rights reserved.
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use
+this file except in compliance with the License. You may obtain a copy of the
+License at http://www.apache.org/licenses/LICENSE-2.0
+
+THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
+WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
+MERCHANTABLITY OR NON-INFRINGEMENT.
+
+See the Apache Version 2.0 License for specific language governing permissions
+and limitations under the License.
+***************************************************************************** */
+
+
+"use strict";
+var __spreadArrays = (this && this.__spreadArrays) || function () {
+    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;
+    for (var r = Array(s), k = 0, i = 0; i < il; i++)
+        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)
+            r[k] = a[j];
+    return r;
+};
+var __assign = (this && this.__assign) || function () {
+    __assign = Object.assign || function(t) {
+        for (var s, i = 1, n = arguments.length; i < n; i++) {
+            s = arguments[i];
+            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
+                t[p] = s[p];
+        }
+        return t;
+    };
+    return __assign.apply(this, arguments);
+};
+var __generator = (this && this.__generator) || function (thisArg, body) {
+    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
+    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
+    function verb(n) { return function (v) { return step([n, v]); }; }
+    function step(op) {
+        if (f) throw new TypeError("Generator is already executing.");
+        while (_) try {
+            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
+            if (y = 0, t) op = [op[0] & 2, t.value];
+            switch (op[0]) {
+                case 0: case 1: t = op; break;
+                case 4: _.label++; return { value: op[1], done: false };
+                case 5: _.label++; y = op[1]; op = [0]; continue;
+                case 7: op = _.ops.pop(); _.trys.pop(); continue;
+                default:
+                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
+                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
+                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
+                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
+                    if (t[2]) _.ops.pop();
+                    _.trys.pop(); continue;
+            }
+            op = body.call(thisArg, _);
+        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
+        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
+    }
+};
+var __makeTemplateObject = (this && this.__makeTemplateObject) || function (cooked, raw) {
+    if (Object.defineProperty) { Object.defineProperty(cooked, "raw", { value: raw }); } else { cooked.raw = raw; }
+    return cooked;
+};
+var ts;
+(function (ts) {
+    ts.versionMajorMinor = "3.9";
+    ts.version = "3.9.5";
+    function tryGetNativeMap() {
+        return typeof Map !== "undefined" && "entries" in Map.prototype ? Map : undefined;
+    }
+    ts.tryGetNativeMap = tryGetNativeMap;
+    ts.Map = tryGetNativeMap() || (function () {
+        if (typeof ts.createMapShim === "function") {
+            return ts.createMapShim();
+        }
+        throw new Error("TypeScript requires an environment that provides a compatible native Map implementation.");
+    })();
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    ts.emptyArray = [];
+    function createMap() {
+        return new ts.Map();
+    }
+    ts.createMap = createMap;
+    function createMapFromEntries(entries) {
+        var map = createMap();
+        for (var _i = 0, entries_1 = entries; _i < entries_1.length; _i++) {
+            var _a = entries_1[_i], key = _a[0], value = _a[1];
+            map.set(key, value);
+        }
+        return map;
+    }
+    ts.createMapFromEntries = createMapFromEntries;
+    function createMapFromTemplate(template) {
+        var map = new ts.Map();
+        for (var key in template) {
+            if (hasOwnProperty.call(template, key)) {
+                map.set(key, template[key]);
+            }
+        }
+        return map;
+    }
+    ts.createMapFromTemplate = createMapFromTemplate;
+    function length(array) {
+        return array ? array.length : 0;
+    }
+    ts.length = length;
+    function forEach(array, callback) {
+        if (array) {
+            for (var i = 0; i < array.length; i++) {
+                var result = callback(array[i], i);
+                if (result) {
+                    return result;
+                }
+            }
+        }
+        return undefined;
+    }
+    ts.forEach = forEach;
+    function forEachRight(array, callback) {
+        if (array) {
+            for (var i = array.length - 1; i >= 0; i--) {
+                var result = callback(array[i], i);
+                if (result) {
+                    return result;
+                }
+            }
+        }
+        return undefined;
+    }
+    ts.forEachRight = forEachRight;
+    function firstDefined(array, callback) {
+        if (array === undefined) {
+            return undefined;
+        }
+        for (var i = 0; i < array.length; i++) {
+            var result = callback(array[i], i);
+            if (result !== undefined) {
+                return result;
+            }
+        }
+        return undefined;
+    }
+    ts.firstDefined = firstDefined;
+    function firstDefinedIterator(iter, callback) {
+        while (true) {
+            var iterResult = iter.next();
+            if (iterResult.done) {
+                return undefined;
+            }
+            var result = callback(iterResult.value);
+            if (result !== undefined) {
+                return result;
+            }
+        }
+    }
+    ts.firstDefinedIterator = firstDefinedIterator;
+    function zipWith(arrayA, arrayB, callback) {
+        var result = [];
+        ts.Debug.assertEqual(arrayA.length, arrayB.length);
+        for (var i = 0; i < arrayA.length; i++) {
+            result.push(callback(arrayA[i], arrayB[i], i));
+        }
+        return result;
+    }
+    ts.zipWith = zipWith;
+    function zipToIterator(arrayA, arrayB) {
+        ts.Debug.assertEqual(arrayA.length, arrayB.length);
+        var i = 0;
+        return {
+            next: function () {
+                if (i === arrayA.length) {
+                    return { value: undefined, done: true };
+                }
+                i++;
+                return { value: [arrayA[i - 1], arrayB[i - 1]], done: false };
+            }
+        };
+    }
+    ts.zipToIterator = zipToIterator;
+    function zipToMap(keys, values) {
+        ts.Debug.assert(keys.length === values.length);
+        var map = createMap();
+        for (var i = 0; i < keys.length; ++i) {
+            map.set(keys[i], values[i]);
+        }
+        return map;
+    }
+    ts.zipToMap = zipToMap;
+    function every(array, callback) {
+        if (array) {
+            for (var i = 0; i < array.length; i++) {
+                if (!callback(array[i], i)) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+    ts.every = every;
+    function find(array, predicate) {
+        for (var i = 0; i < array.length; i++) {
+            var value = array[i];
+            if (predicate(value, i)) {
+                return value;
+            }
+        }
+        return undefined;
+    }
+    ts.find = find;
+    function findLast(array, predicate) {
+        for (var i = array.length - 1; i >= 0; i--) {
+            var value = array[i];
+            if (predicate(value, i)) {
+                return value;
+            }
+        }
+        return undefined;
+    }
+    ts.findLast = findLast;
+    function findIndex(array, predicate, startIndex) {
+        for (var i = startIndex || 0; i < array.length; i++) {
+            if (predicate(array[i], i)) {
+                return i;
+            }
+        }
+        return -1;
+    }
+    ts.findIndex = findIndex;
+    function findLastIndex(array, predicate, startIndex) {
+        for (var i = startIndex === undefined ? array.length - 1 : startIndex; i >= 0; i--) {
+            if (predicate(array[i], i)) {
+                return i;
+            }
+        }
+        return -1;
+    }
+    ts.findLastIndex = findLastIndex;
+    function findMap(array, callback) {
+        for (var i = 0; i < array.length; i++) {
+            var result = callback(array[i], i);
+            if (result) {
+                return result;
+            }
+        }
+        return ts.Debug.fail();
+    }
+    ts.findMap = findMap;
+    function contains(array, value, equalityComparer) {
+        if (equalityComparer === void 0) { equalityComparer = equateValues; }
+        if (array) {
+            for (var _i = 0, array_1 = array; _i < array_1.length; _i++) {
+                var v = array_1[_i];
+                if (equalityComparer(v, value)) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+    ts.contains = contains;
+    function arraysEqual(a, b, equalityComparer) {
+        if (equalityComparer === void 0) { equalityComparer = equateValues; }
+        return a.length === b.length && a.every(function (x, i) { return equalityComparer(x, b[i]); });
+    }
+    ts.arraysEqual = arraysEqual;
+    function indexOfAnyCharCode(text, charCodes, start) {
+        for (var i = start || 0; i < text.length; i++) {
+            if (contains(charCodes, text.charCodeAt(i))) {
+                return i;
+            }
+        }
+        return -1;
+    }
+    ts.indexOfAnyCharCode = indexOfAnyCharCode;
+    function countWhere(array, predicate) {
+        var count = 0;
+        if (array) {
+            for (var i = 0; i < array.length; i++) {
+                var v = array[i];
+                if (predicate(v, i)) {
+                    count++;
+                }
+            }
+        }
+        return count;
+    }
+    ts.countWhere = countWhere;
+    function filter(array, f) {
+        if (array) {
+            var len = array.length;
+            var i = 0;
+            while (i < len && f(array[i]))
+                i++;
+            if (i < len) {
+                var result = array.slice(0, i);
+                i++;
+                while (i < len) {
+                    var item = array[i];
+                    if (f(item)) {
+                        result.push(item);
+                    }
+                    i++;
+                }
+                return result;
+            }
+        }
+        return array;
+    }
+    ts.filter = filter;
+    function filterMutate(array, f) {
+        var outIndex = 0;
+        for (var i = 0; i < array.length; i++) {
+            if (f(array[i], i, array)) {
+                array[outIndex] = array[i];
+                outIndex++;
+            }
+        }
+        array.length = outIndex;
+    }
+    ts.filterMutate = filterMutate;
+    function clear(array) {
+        array.length = 0;
+    }
+    ts.clear = clear;
+    function map(array, f) {
+        var result;
+        if (array) {
+            result = [];
+            for (var i = 0; i < array.length; i++) {
+                result.push(f(array[i], i));
+            }
+        }
+        return result;
+    }
+    ts.map = map;
+    function mapIterator(iter, mapFn) {
+        return {
+            next: function () {
+                var iterRes = iter.next();
+                return iterRes.done ? iterRes : { value: mapFn(iterRes.value), done: false };
+            }
+        };
+    }
+    ts.mapIterator = mapIterator;
+    function sameMap(array, f) {
+        if (array) {
+            for (var i = 0; i < array.length; i++) {
+                var item = array[i];
+                var mapped = f(item, i);
+                if (item !== mapped) {
+                    var result = array.slice(0, i);
+                    result.push(mapped);
+                    for (i++; i < array.length; i++) {
+                        result.push(f(array[i], i));
+                    }
+                    return result;
+                }
+            }
+        }
+        return array;
+    }
+    ts.sameMap = sameMap;
+    function flatten(array) {
+        var result = [];
+        for (var _i = 0, array_2 = array; _i < array_2.length; _i++) {
+            var v = array_2[_i];
+            if (v) {
+                if (isArray(v)) {
+                    addRange(result, v);
+                }
+                else {
+                    result.push(v);
+                }
+            }
+        }
+        return result;
+    }
+    ts.flatten = flatten;
+    function flatMap(array, mapfn) {
+        var result;
+        if (array) {
+            for (var i = 0; i < array.length; i++) {
+                var v = mapfn(array[i], i);
+                if (v) {
+                    if (isArray(v)) {
+                        result = addRange(result, v);
+                    }
+                    else {
+                        result = append(result, v);
+                    }
+                }
+            }
+        }
+        return result || ts.emptyArray;
+    }
+    ts.flatMap = flatMap;
+    function flatMapToMutable(array, mapfn) {
+        var result = [];
+        if (array) {
+            for (var i = 0; i < array.length; i++) {
+                var v = mapfn(array[i], i);
+                if (v) {
+                    if (isArray(v)) {
+                        addRange(result, v);
+                    }
+                    else {
+                        result.push(v);
+                    }
+                }
+            }
+        }
+        return result;
+    }
+    ts.flatMapToMutable = flatMapToMutable;
+    function flatMapIterator(iter, mapfn) {
+        var first = iter.next();
+        if (first.done) {
+            return ts.emptyIterator;
+        }
+        var currentIter = getIterator(first.value);
+        return {
+            next: function () {
+                while (true) {
+                    var currentRes = currentIter.next();
+                    if (!currentRes.done) {
+                        return currentRes;
+                    }
+                    var iterRes = iter.next();
+                    if (iterRes.done) {
+                        return iterRes;
+                    }
+                    currentIter = getIterator(iterRes.value);
+                }
+            },
+        };
+        function getIterator(x) {
+            var res = mapfn(x);
+            return res === undefined ? ts.emptyIterator : isArray(res) ? arrayIterator(res) : res;
+        }
+    }
+    ts.flatMapIterator = flatMapIterator;
+    function sameFlatMap(array, mapfn) {
+        var result;
+        if (array) {
+            for (var i = 0; i < array.length; i++) {
+                var item = array[i];
+                var mapped = mapfn(item, i);
+                if (result || item !== mapped || isArray(mapped)) {
+                    if (!result) {
+                        result = array.slice(0, i);
+                    }
+                    if (isArray(mapped)) {
+                        addRange(result, mapped);
+                    }
+                    else {
+                        result.push(mapped);
+                    }
+                }
+            }
+        }
+        return result || array;
+    }
+    ts.sameFlatMap = sameFlatMap;
+    function mapAllOrFail(array, mapFn) {
+        var result = [];
+        for (var i = 0; i < array.length; i++) {
+            var mapped = mapFn(array[i], i);
+            if (mapped === undefined) {
+                return undefined;
+            }
+            result.push(mapped);
+        }
+        return result;
+    }
+    ts.mapAllOrFail = mapAllOrFail;
+    function mapDefined(array, mapFn) {
+        var result = [];
+        if (array) {
+            for (var i = 0; i < array.length; i++) {
+                var mapped = mapFn(array[i], i);
+                if (mapped !== undefined) {
+                    result.push(mapped);
+                }
+            }
+        }
+        return result;
+    }
+    ts.mapDefined = mapDefined;
+    function mapDefinedIterator(iter, mapFn) {
+        return {
+            next: function () {
+                while (true) {
+                    var res = iter.next();
+                    if (res.done) {
+                        return res;
+                    }
+                    var value = mapFn(res.value);
+                    if (value !== undefined) {
+                        return { value: value, done: false };
+                    }
+                }
+            }
+        };
+    }
+    ts.mapDefinedIterator = mapDefinedIterator;
+    function mapDefinedMap(map, mapValue, mapKey) {
+        if (mapKey === void 0) { mapKey = identity; }
+        var result = createMap();
+        map.forEach(function (value, key) {
+            var mapped = mapValue(value, key);
+            if (mapped !== undefined) {
+                result.set(mapKey(key), mapped);
+            }
+        });
+        return result;
+    }
+    ts.mapDefinedMap = mapDefinedMap;
+    ts.emptyIterator = { next: function () { return ({ value: undefined, done: true }); } };
+    function singleIterator(value) {
+        var done = false;
+        return {
+            next: function () {
+                var wasDone = done;
+                done = true;
+                return wasDone ? { value: undefined, done: true } : { value: value, done: false };
+            }
+        };
+    }
+    ts.singleIterator = singleIterator;
+    function spanMap(array, keyfn, mapfn) {
+        var result;
+        if (array) {
+            result = [];
+            var len = array.length;
+            var previousKey = void 0;
+            var key = void 0;
+            var start = 0;
+            var pos = 0;
+            while (start < len) {
+                while (pos < len) {
+                    var value = array[pos];
+                    key = keyfn(value, pos);
+                    if (pos === 0) {
+                        previousKey = key;
+                    }
+                    else if (key !== previousKey) {
+                        break;
+                    }
+                    pos++;
+                }
+                if (start < pos) {
+                    var v = mapfn(array.slice(start, pos), previousKey, start, pos);
+                    if (v) {
+                        result.push(v);
+                    }
+                    start = pos;
+                }
+                previousKey = key;
+                pos++;
+            }
+        }
+        return result;
+    }
+    ts.spanMap = spanMap;
+    function mapEntries(map, f) {
+        if (!map) {
+            return undefined;
+        }
+        var result = createMap();
+        map.forEach(function (value, key) {
+            var _a = f(key, value), newKey = _a[0], newValue = _a[1];
+            result.set(newKey, newValue);
+        });
+        return result;
+    }
+    ts.mapEntries = mapEntries;
+    function some(array, predicate) {
+        if (array) {
+            if (predicate) {
+                for (var _i = 0, array_3 = array; _i < array_3.length; _i++) {
+                    var v = array_3[_i];
+                    if (predicate(v)) {
+                        return true;
+                    }
+                }
+            }
+            else {
+                return array.length > 0;
+            }
+        }
+        return false;
+    }
+    ts.some = some;
+    function getRangesWhere(arr, pred, cb) {
+        var start;
+        for (var i = 0; i < arr.length; i++) {
+            if (pred(arr[i])) {
+                start = start === undefined ? i : start;
+            }
+            else {
+                if (start !== undefined) {
+                    cb(start, i);
+                    start = undefined;
+                }
+            }
+        }
+        if (start !== undefined)
+            cb(start, arr.length);
+    }
+    ts.getRangesWhere = getRangesWhere;
+    function concatenate(array1, array2) {
+        if (!some(array2))
+            return array1;
+        if (!some(array1))
+            return array2;
+        return __spreadArrays(array1, array2);
+    }
+    ts.concatenate = concatenate;
+    function selectIndex(_, i) {
+        return i;
+    }
+    function indicesOf(array) {
+        return array.map(selectIndex);
+    }
+    ts.indicesOf = indicesOf;
+    function deduplicateRelational(array, equalityComparer, comparer) {
+        var indices = indicesOf(array);
+        stableSortIndices(array, indices, comparer);
+        var last = array[indices[0]];
+        var deduplicated = [indices[0]];
+        for (var i = 1; i < indices.length; i++) {
+            var index = indices[i];
+            var item = array[index];
+            if (!equalityComparer(last, item)) {
+                deduplicated.push(index);
+                last = item;
+            }
+        }
+        deduplicated.sort();
+        return deduplicated.map(function (i) { return array[i]; });
+    }
+    function deduplicateEquality(array, equalityComparer) {
+        var result = [];
+        for (var _i = 0, array_4 = array; _i < array_4.length; _i++) {
+            var item = array_4[_i];
+            pushIfUnique(result, item, equalityComparer);
+        }
+        return result;
+    }
+    function deduplicate(array, equalityComparer, comparer) {
+        return array.length === 0 ? [] :
+            array.length === 1 ? array.slice() :
+                comparer ? deduplicateRelational(array, equalityComparer, comparer) :
+                    deduplicateEquality(array, equalityComparer);
+    }
+    ts.deduplicate = deduplicate;
+    function deduplicateSorted(array, comparer) {
+        if (array.length === 0)
+            return ts.emptyArray;
+        var last = array[0];
+        var deduplicated = [last];
+        for (var i = 1; i < array.length; i++) {
+            var next = array[i];
+            switch (comparer(next, last)) {
+                case true:
+                case 0:
+                    continue;
+                case -1:
+                    return ts.Debug.fail("Array is unsorted.");
+            }
+            deduplicated.push(last = next);
+        }
+        return deduplicated;
+    }
+    function insertSorted(array, insert, compare) {
+        if (array.length === 0) {
+            array.push(insert);
+            return;
+        }
+        var insertIndex = binarySearch(array, insert, identity, compare);
+        if (insertIndex < 0) {
+            array.splice(~insertIndex, 0, insert);
+        }
+    }
+    ts.insertSorted = insertSorted;
+    function sortAndDeduplicate(array, comparer, equalityComparer) {
+        return deduplicateSorted(sort(array, comparer), equalityComparer || comparer || compareStringsCaseSensitive);
+    }
+    ts.sortAndDeduplicate = sortAndDeduplicate;
+    function arrayIsEqualTo(array1, array2, equalityComparer) {
+        if (equalityComparer === void 0) { equalityComparer = equateValues; }
+        if (!array1 || !array2) {
+            return array1 === array2;
+        }
+        if (array1.length !== array2.length) {
+            return false;
+        }
+        for (var i = 0; i < array1.length; i++) {
+            if (!equalityComparer(array1[i], array2[i], i)) {
+                return false;
+            }
+        }
+        return true;
+    }
+    ts.arrayIsEqualTo = arrayIsEqualTo;
+    function compact(array) {
+        var result;
+        if (array) {
+            for (var i = 0; i < array.length; i++) {
+                var v = array[i];
+                if (result || !v) {
+                    if (!result) {
+                        result = array.slice(0, i);
+                    }
+                    if (v) {
+                        result.push(v);
+                    }
+                }
+            }
+        }
+        return result || array;
+    }
+    ts.compact = compact;
+    function relativeComplement(arrayA, arrayB, comparer) {
+        if (!arrayB || !arrayA || arrayB.length === 0 || arrayA.length === 0)
+            return arrayB;
+        var result = [];
+        loopB: for (var offsetA = 0, offsetB = 0; offsetB < arrayB.length; offsetB++) {
+            if (offsetB > 0) {
+                ts.Debug.assertGreaterThanOrEqual(comparer(arrayB[offsetB], arrayB[offsetB - 1]), 0);
+            }
+            loopA: for (var startA = offsetA; offsetA < arrayA.length; offsetA++) {
+                if (offsetA > startA) {
+                    ts.Debug.assertGreaterThanOrEqual(comparer(arrayA[offsetA], arrayA[offsetA - 1]), 0);
+                }
+                switch (comparer(arrayB[offsetB], arrayA[offsetA])) {
+                    case -1:
+                        result.push(arrayB[offsetB]);
+                        continue loopB;
+                    case 0:
+                        continue loopB;
+                    case 1:
+                        continue loopA;
+                }
+            }
+        }
+        return result;
+    }
+    ts.relativeComplement = relativeComplement;
+    function sum(array, prop) {
+        var result = 0;
+        for (var _i = 0, array_5 = array; _i < array_5.length; _i++) {
+            var v = array_5[_i];
+            result += v[prop];
+        }
+        return result;
+    }
+    ts.sum = sum;
+    function append(to, value) {
+        if (value === undefined)
+            return to;
+        if (to === undefined)
+            return [value];
+        to.push(value);
+        return to;
+    }
+    ts.append = append;
+    function combine(xs, ys) {
+        if (xs === undefined)
+            return ys;
+        if (ys === undefined)
+            return xs;
+        if (isArray(xs))
+            return isArray(ys) ? concatenate(xs, ys) : append(xs, ys);
+        if (isArray(ys))
+            return append(ys, xs);
+        return [xs, ys];
+    }
+    ts.combine = combine;
+    function toOffset(array, offset) {
+        return offset < 0 ? array.length + offset : offset;
+    }
+    function addRange(to, from, start, end) {
+        if (from === undefined || from.length === 0)
+            return to;
+        if (to === undefined)
+            return from.slice(start, end);
+        start = start === undefined ? 0 : toOffset(from, start);
+        end = end === undefined ? from.length : toOffset(from, end);
+        for (var i = start; i < end && i < from.length; i++) {
+            if (from[i] !== undefined) {
+                to.push(from[i]);
+            }
+        }
+        return to;
+    }
+    ts.addRange = addRange;
+    function pushIfUnique(array, toAdd, equalityComparer) {
+        if (contains(array, toAdd, equalityComparer)) {
+            return false;
+        }
+        else {
+            array.push(toAdd);
+            return true;
+        }
+    }
+    ts.pushIfUnique = pushIfUnique;
+    function appendIfUnique(array, toAdd, equalityComparer) {
+        if (array) {
+            pushIfUnique(array, toAdd, equalityComparer);
+            return array;
+        }
+        else {
+            return [toAdd];
+        }
+    }
+    ts.appendIfUnique = appendIfUnique;
+    function stableSortIndices(array, indices, comparer) {
+        indices.sort(function (x, y) { return comparer(array[x], array[y]) || compareValues(x, y); });
+    }
+    function sort(array, comparer) {
+        return (array.length === 0 ? array : array.slice().sort(comparer));
+    }
+    ts.sort = sort;
+    function arrayIterator(array) {
+        var i = 0;
+        return { next: function () {
+                if (i === array.length) {
+                    return { value: undefined, done: true };
+                }
+                else {
+                    i++;
+                    return { value: array[i - 1], done: false };
+                }
+            } };
+    }
+    ts.arrayIterator = arrayIterator;
+    function arrayReverseIterator(array) {
+        var i = array.length;
+        return {
+            next: function () {
+                if (i === 0) {
+                    return { value: undefined, done: true };
+                }
+                else {
+                    i--;
+                    return { value: array[i], done: false };
+                }
+            }
+        };
+    }
+    ts.arrayReverseIterator = arrayReverseIterator;
+    function stableSort(array, comparer) {
+        var indices = indicesOf(array);
+        stableSortIndices(array, indices, comparer);
+        return indices.map(function (i) { return array[i]; });
+    }
+    ts.stableSort = stableSort;
+    function rangeEquals(array1, array2, pos, end) {
+        while (pos < end) {
+            if (array1[pos] !== array2[pos]) {
+                return false;
+            }
+            pos++;
+        }
+        return true;
+    }
+    ts.rangeEquals = rangeEquals;
+    function elementAt(array, offset) {
+        if (array) {
+            offset = toOffset(array, offset);
+            if (offset < array.length) {
+                return array[offset];
+            }
+        }
+        return undefined;
+    }
+    ts.elementAt = elementAt;
+    function firstOrUndefined(array) {
+        return array.length === 0 ? undefined : array[0];
+    }
+    ts.firstOrUndefined = firstOrUndefined;
+    function first(array) {
+        ts.Debug.assert(array.length !== 0);
+        return array[0];
+    }
+    ts.first = first;
+    function lastOrUndefined(array) {
+        return array.length === 0 ? undefined : array[array.length - 1];
+    }
+    ts.lastOrUndefined = lastOrUndefined;
+    function last(array) {
+        ts.Debug.assert(array.length !== 0);
+        return array[array.length - 1];
+    }
+    ts.last = last;
+    function singleOrUndefined(array) {
+        return array && array.length === 1
+            ? array[0]
+            : undefined;
+    }
+    ts.singleOrUndefined = singleOrUndefined;
+    function singleOrMany(array) {
+        return array && array.length === 1
+            ? array[0]
+            : array;
+    }
+    ts.singleOrMany = singleOrMany;
+    function replaceElement(array, index, value) {
+        var result = array.slice(0);
+        result[index] = value;
+        return result;
+    }
+    ts.replaceElement = replaceElement;
+    function binarySearch(array, value, keySelector, keyComparer, offset) {
+        return binarySearchKey(array, keySelector(value), keySelector, keyComparer, offset);
+    }
+    ts.binarySearch = binarySearch;
+    function binarySearchKey(array, key, keySelector, keyComparer, offset) {
+        if (!some(array)) {
+            return -1;
+        }
+        var low = offset || 0;
+        var high = array.length - 1;
+        while (low <= high) {
+            var middle = low + ((high - low) >> 1);
+            var midKey = keySelector(array[middle]);
+            switch (keyComparer(midKey, key)) {
+                case -1:
+                    low = middle + 1;
+                    break;
+                case 0:
+                    return middle;
+                case 1:
+                    high = middle - 1;
+                    break;
+            }
+        }
+        return ~low;
+    }
+    ts.binarySearchKey = binarySearchKey;
+    function reduceLeft(array, f, initial, start, count) {
+        if (array && array.length > 0) {
+            var size = array.length;
+            if (size > 0) {
+                var pos = start === undefined || start < 0 ? 0 : start;
+                var end = count === undefined || pos + count > size - 1 ? size - 1 : pos + count;
+                var result = void 0;
+                if (arguments.length <= 2) {
+                    result = array[pos];
+                    pos++;
+                }
+                else {
+                    result = initial;
+                }
+                while (pos <= end) {
+                    result = f(result, array[pos], pos);
+                    pos++;
+                }
+                return result;
+            }
+        }
+        return initial;
+    }
+    ts.reduceLeft = reduceLeft;
+    var hasOwnProperty = Object.prototype.hasOwnProperty;
+    function hasProperty(map, key) {
+        return hasOwnProperty.call(map, key);
+    }
+    ts.hasProperty = hasProperty;
+    function getProperty(map, key) {
+        return hasOwnProperty.call(map, key) ? map[key] : undefined;
+    }
+    ts.getProperty = getProperty;
+    function getOwnKeys(map) {
+        var keys = [];
+        for (var key in map) {
+            if (hasOwnProperty.call(map, key)) {
+                keys.push(key);
+            }
+        }
+        return keys;
+    }
+    ts.getOwnKeys = getOwnKeys;
+    function getAllKeys(obj) {
+        var result = [];
+        do {
+            var names = Object.getOwnPropertyNames(obj);
+            for (var _i = 0, names_1 = names; _i < names_1.length; _i++) {
+                var name = names_1[_i];
+                pushIfUnique(result, name);
+            }
+        } while (obj = Object.getPrototypeOf(obj));
+        return result;
+    }
+    ts.getAllKeys = getAllKeys;
+    function getOwnValues(sparseArray) {
+        var values = [];
+        for (var key in sparseArray) {
+            if (hasOwnProperty.call(sparseArray, key)) {
+                values.push(sparseArray[key]);
+            }
+        }
+        return values;
+    }
+    ts.getOwnValues = getOwnValues;
+    function arrayFrom(iterator, map) {
+        var result = [];
+        for (var iterResult = iterator.next(); !iterResult.done; iterResult = iterator.next()) {
+            result.push(map ? map(iterResult.value) : iterResult.value);
+        }
+        return result;
+    }
+    ts.arrayFrom = arrayFrom;
+    function assign(t) {
+        var args = [];
+        for (var _i = 1; _i < arguments.length; _i++) {
+            args[_i - 1] = arguments[_i];
+        }
+        for (var _a = 0, args_1 = args; _a < args_1.length; _a++) {
+            var arg = args_1[_a];
+            if (arg === undefined)
+                continue;
+            for (var p in arg) {
+                if (hasProperty(arg, p)) {
+                    t[p] = arg[p];
+                }
+            }
+        }
+        return t;
+    }
+    ts.assign = assign;
+    function equalOwnProperties(left, right, equalityComparer) {
+        if (equalityComparer === void 0) { equalityComparer = equateValues; }
+        if (left === right)
+            return true;
+        if (!left || !right)
+            return false;
+        for (var key in left) {
+            if (hasOwnProperty.call(left, key)) {
+                if (!hasOwnProperty.call(right, key))
+                    return false;
+                if (!equalityComparer(left[key], right[key]))
+                    return false;
+            }
+        }
+        for (var key in right) {
+            if (hasOwnProperty.call(right, key)) {
+                if (!hasOwnProperty.call(left, key))
+                    return false;
+            }
+        }
+        return true;
+    }
+    ts.equalOwnProperties = equalOwnProperties;
+    function arrayToMap(array, makeKey, makeValue) {
+        if (makeValue === void 0) { makeValue = identity; }
+        var result = createMap();
+        for (var _i = 0, array_6 = array; _i < array_6.length; _i++) {
+            var value = array_6[_i];
+            var key = makeKey(value);
+            if (key !== undefined)
+                result.set(key, makeValue(value));
+        }
+        return result;
+    }
+    ts.arrayToMap = arrayToMap;
+    function arrayToNumericMap(array, makeKey, makeValue) {
+        if (makeValue === void 0) { makeValue = identity; }
+        var result = [];
+        for (var _i = 0, array_7 = array; _i < array_7.length; _i++) {
+            var value = array_7[_i];
+            result[makeKey(value)] = makeValue(value);
+        }
+        return result;
+    }
+    ts.arrayToNumericMap = arrayToNumericMap;
+    function arrayToMultiMap(values, makeKey, makeValue) {
+        if (makeValue === void 0) { makeValue = identity; }
+        var result = createMultiMap();
+        for (var _i = 0, values_1 = values; _i < values_1.length; _i++) {
+            var value = values_1[_i];
+            result.add(makeKey(value), makeValue(value));
+        }
+        return result;
+    }
+    ts.arrayToMultiMap = arrayToMultiMap;
+    function group(values, getGroupId, resultSelector) {
+        if (resultSelector === void 0) { resultSelector = identity; }
+        return arrayFrom(arrayToMultiMap(values, getGroupId).values(), resultSelector);
+    }
+    ts.group = group;
+    function clone(object) {
+        var result = {};
+        for (var id in object) {
+            if (hasOwnProperty.call(object, id)) {
+                result[id] = object[id];
+            }
+        }
+        return result;
+    }
+    ts.clone = clone;
+    function extend(first, second) {
+        var result = {};
+        for (var id in second) {
+            if (hasOwnProperty.call(second, id)) {
+                result[id] = second[id];
+            }
+        }
+        for (var id in first) {
+            if (hasOwnProperty.call(first, id)) {
+                result[id] = first[id];
+            }
+        }
+        return result;
+    }
+    ts.extend = extend;
+    function copyProperties(first, second) {
+        for (var id in second) {
+            if (hasOwnProperty.call(second, id)) {
+                first[id] = second[id];
+            }
+        }
+    }
+    ts.copyProperties = copyProperties;
+    function maybeBind(obj, fn) {
+        return fn ? fn.bind(obj) : undefined;
+    }
+    ts.maybeBind = maybeBind;
+    function mapMap(map, f) {
+        var result = createMap();
+        map.forEach(function (t, key) { return result.set.apply(result, (f(t, key))); });
+        return result;
+    }
+    ts.mapMap = mapMap;
+    function createMultiMap() {
+        var map = createMap();
+        map.add = multiMapAdd;
+        map.remove = multiMapRemove;
+        return map;
+    }
+    ts.createMultiMap = createMultiMap;
+    function multiMapAdd(key, value) {
+        var values = this.get(key);
+        if (values) {
+            values.push(value);
+        }
+        else {
+            this.set(key, values = [value]);
+        }
+        return values;
+    }
+    function multiMapRemove(key, value) {
+        var values = this.get(key);
+        if (values) {
+            unorderedRemoveItem(values, value);
+            if (!values.length) {
+                this.delete(key);
+            }
+        }
+    }
+    function createUnderscoreEscapedMultiMap() {
+        return createMultiMap();
+    }
+    ts.createUnderscoreEscapedMultiMap = createUnderscoreEscapedMultiMap;
+    function isArray(value) {
+        return Array.isArray ? Array.isArray(value) : value instanceof Array;
+    }
+    ts.isArray = isArray;
+    function toArray(value) {
+        return isArray(value) ? value : [value];
+    }
+    ts.toArray = toArray;
+    function isString(text) {
+        return typeof text === "string";
+    }
+    ts.isString = isString;
+    function isNumber(x) {
+        return typeof x === "number";
+    }
+    ts.isNumber = isNumber;
+    function tryCast(value, test) {
+        return value !== undefined && test(value) ? value : undefined;
+    }
+    ts.tryCast = tryCast;
+    function cast(value, test) {
+        if (value !== undefined && test(value))
+            return value;
+        return ts.Debug.fail("Invalid cast. The supplied value " + value + " did not pass the test '" + ts.Debug.getFunctionName(test) + "'.");
+    }
+    ts.cast = cast;
+    function noop(_) { }
+    ts.noop = noop;
+    function returnFalse() { return false; }
+    ts.returnFalse = returnFalse;
+    function returnTrue() { return true; }
+    ts.returnTrue = returnTrue;
+    function returnUndefined() { return undefined; }
+    ts.returnUndefined = returnUndefined;
+    function identity(x) { return x; }
+    ts.identity = identity;
+    function toLowerCase(x) { return x.toLowerCase(); }
+    ts.toLowerCase = toLowerCase;
+    var fileNameLowerCaseRegExp = /[^\u0130\u0131\u00DFa-z0-9\\/:\-_\. ]+/g;
+    function toFileNameLowerCase(x) {
+        return fileNameLowerCaseRegExp.test(x) ?
+            x.replace(fileNameLowerCaseRegExp, toLowerCase) :
+            x;
+    }
+    ts.toFileNameLowerCase = toFileNameLowerCase;
+    function notImplemented() {
+        throw new Error("Not implemented");
+    }
+    ts.notImplemented = notImplemented;
+    function memoize(callback) {
+        var value;
+        return function () {
+            if (callback) {
+                value = callback();
+                callback = undefined;
+            }
+            return value;
+        };
+    }
+    ts.memoize = memoize;
+    function compose(a, b, c, d, e) {
+        if (!!e) {
+            var args_2 = [];
+            for (var i = 0; i < arguments.length; i++) {
+                args_2[i] = arguments[i];
+            }
+            return function (t) { return reduceLeft(args_2, function (u, f) { return f(u); }, t); };
+        }
+        else if (d) {
+            return function (t) { return d(c(b(a(t)))); };
+        }
+        else if (c) {
+            return function (t) { return c(b(a(t))); };
+        }
+        else if (b) {
+            return function (t) { return b(a(t)); };
+        }
+        else if (a) {
+            return function (t) { return a(t); };
+        }
+        else {
+            return function (t) { return t; };
+        }
+    }
+    ts.compose = compose;
+    function equateValues(a, b) {
+        return a === b;
+    }
+    ts.equateValues = equateValues;
+    function equateStringsCaseInsensitive(a, b) {
+        return a === b
+            || a !== undefined
+                && b !== undefined
+                && a.toUpperCase() === b.toUpperCase();
+    }
+    ts.equateStringsCaseInsensitive = equateStringsCaseInsensitive;
+    function equateStringsCaseSensitive(a, b) {
+        return equateValues(a, b);
+    }
+    ts.equateStringsCaseSensitive = equateStringsCaseSensitive;
+    function compareComparableValues(a, b) {
+        return a === b ? 0 :
+            a === undefined ? -1 :
+                b === undefined ? 1 :
+                    a < b ? -1 :
+                        1;
+    }
+    function compareValues(a, b) {
+        return compareComparableValues(a, b);
+    }
+    ts.compareValues = compareValues;
+    function compareTextSpans(a, b) {
+        return compareValues(a === null || a === void 0 ? void 0 : a.start, b === null || b === void 0 ? void 0 : b.start) || compareValues(a === null || a === void 0 ? void 0 : a.length, b === null || b === void 0 ? void 0 : b.length);
+    }
+    ts.compareTextSpans = compareTextSpans;
+    function min(a, b, compare) {
+        return compare(a, b) === -1 ? a : b;
+    }
+    ts.min = min;
+    function compareStringsCaseInsensitive(a, b) {
+        if (a === b)
+            return 0;
+        if (a === undefined)
+            return -1;
+        if (b === undefined)
+            return 1;
+        a = a.toUpperCase();
+        b = b.toUpperCase();
+        return a < b ? -1 : a > b ? 1 : 0;
+    }
+    ts.compareStringsCaseInsensitive = compareStringsCaseInsensitive;
+    function compareStringsCaseSensitive(a, b) {
+        return compareComparableValues(a, b);
+    }
+    ts.compareStringsCaseSensitive = compareStringsCaseSensitive;
+    function getStringComparer(ignoreCase) {
+        return ignoreCase ? compareStringsCaseInsensitive : compareStringsCaseSensitive;
+    }
+    ts.getStringComparer = getStringComparer;
+    var createUIStringComparer = (function () {
+        var defaultComparer;
+        var enUSComparer;
+        var stringComparerFactory = getStringComparerFactory();
+        return createStringComparer;
+        function compareWithCallback(a, b, comparer) {
+            if (a === b)
+                return 0;
+            if (a === undefined)
+                return -1;
+            if (b === undefined)
+                return 1;
+            var value = comparer(a, b);
+            return value < 0 ? -1 : value > 0 ? 1 : 0;
+        }
+        function createIntlCollatorStringComparer(locale) {
+            var comparer = new Intl.Collator(locale, { usage: "sort", sensitivity: "variant" }).compare;
+            return function (a, b) { return compareWithCallback(a, b, comparer); };
+        }
+        function createLocaleCompareStringComparer(locale) {
+            if (locale !== undefined)
+                return createFallbackStringComparer();
+            return function (a, b) { return compareWithCallback(a, b, compareStrings); };
+            function compareStrings(a, b) {
+                return a.localeCompare(b);
+            }
+        }
+        function createFallbackStringComparer() {
+            return function (a, b) { return compareWithCallback(a, b, compareDictionaryOrder); };
+            function compareDictionaryOrder(a, b) {
+                return compareStrings(a.toUpperCase(), b.toUpperCase()) || compareStrings(a, b);
+            }
+            function compareStrings(a, b) {
+                return a < b ? -1 : a > b ? 1 : 0;
+            }
+        }
+        function getStringComparerFactory() {
+            if (typeof Intl === "object" && typeof Intl.Collator === "function") {
+                return createIntlCollatorStringComparer;
+            }
+            if (typeof String.prototype.localeCompare === "function" &&
+                typeof String.prototype.toLocaleUpperCase === "function" &&
+                "a".localeCompare("B") < 0) {
+                return createLocaleCompareStringComparer;
+            }
+            return createFallbackStringComparer;
+        }
+        function createStringComparer(locale) {
+            if (locale === undefined) {
+                return defaultComparer || (defaultComparer = stringComparerFactory(locale));
+            }
+            else if (locale === "en-US") {
+                return enUSComparer || (enUSComparer = stringComparerFactory(locale));
+            }
+            else {
+                return stringComparerFactory(locale);
+            }
+        }
+    })();
+    var uiComparerCaseSensitive;
+    var uiLocale;
+    function getUILocale() {
+        return uiLocale;
+    }
+    ts.getUILocale = getUILocale;
+    function setUILocale(value) {
+        if (uiLocale !== value) {
+            uiLocale = value;
+            uiComparerCaseSensitive = undefined;
+        }
+    }
+    ts.setUILocale = setUILocale;
+    function compareStringsCaseSensitiveUI(a, b) {
+        var comparer = uiComparerCaseSensitive || (uiComparerCaseSensitive = createUIStringComparer(uiLocale));
+        return comparer(a, b);
+    }
+    ts.compareStringsCaseSensitiveUI = compareStringsCaseSensitiveUI;
+    function compareProperties(a, b, key, comparer) {
+        return a === b ? 0 :
+            a === undefined ? -1 :
+                b === undefined ? 1 :
+                    comparer(a[key], b[key]);
+    }
+    ts.compareProperties = compareProperties;
+    function compareBooleans(a, b) {
+        return compareValues(a ? 1 : 0, b ? 1 : 0);
+    }
+    ts.compareBooleans = compareBooleans;
+    function getSpellingSuggestion(name, candidates, getName) {
+        var maximumLengthDifference = Math.min(2, Math.floor(name.length * 0.34));
+        var bestDistance = Math.floor(name.length * 0.4) + 1;
+        var bestCandidate;
+        var justCheckExactMatches = false;
+        var nameLowerCase = name.toLowerCase();
+        for (var _i = 0, candidates_1 = candidates; _i < candidates_1.length; _i++) {
+            var candidate = candidates_1[_i];
+            var candidateName = getName(candidate);
+            if (candidateName !== undefined && Math.abs(candidateName.length - nameLowerCase.length) <= maximumLengthDifference) {
+                var candidateNameLowerCase = candidateName.toLowerCase();
+                if (candidateNameLowerCase === nameLowerCase) {
+                    if (candidateName === name) {
+                        continue;
+                    }
+                    return candidate;
+                }
+                if (justCheckExactMatches) {
+                    continue;
+                }
+                if (candidateName.length < 3) {
+                    continue;
+                }
+                var distance = levenshteinWithMax(nameLowerCase, candidateNameLowerCase, bestDistance - 1);
+                if (distance === undefined) {
+                    continue;
+                }
+                if (distance < 3) {
+                    justCheckExactMatches = true;
+                    bestCandidate = candidate;
+                }
+                else {
+                    ts.Debug.assert(distance < bestDistance);
+                    bestDistance = distance;
+                    bestCandidate = candidate;
+                }
+            }
+        }
+        return bestCandidate;
+    }
+    ts.getSpellingSuggestion = getSpellingSuggestion;
+    function levenshteinWithMax(s1, s2, max) {
+        var previous = new Array(s2.length + 1);
+        var current = new Array(s2.length + 1);
+        var big = max + 1;
+        for (var i = 0; i <= s2.length; i++) {
+            previous[i] = i;
+        }
+        for (var i = 1; i <= s1.length; i++) {
+            var c1 = s1.charCodeAt(i - 1);
+            var minJ = i > max ? i - max : 1;
+            var maxJ = s2.length > max + i ? max + i : s2.length;
+            current[0] = i;
+            var colMin = i;
+            for (var j = 1; j < minJ; j++) {
+                current[j] = big;
+            }
+            for (var j = minJ; j <= maxJ; j++) {
+                var dist = c1 === s2.charCodeAt(j - 1)
+                    ? previous[j - 1]
+                    : Math.min(previous[j] + 1, current[j - 1] + 1, previous[j - 1] + 2);
+                current[j] = dist;
+                colMin = Math.min(colMin, dist);
+            }
+            for (var j = maxJ + 1; j <= s2.length; j++) {
+                current[j] = big;
+            }
+            if (colMin > max) {
+                return undefined;
+            }
+            var temp = previous;
+            previous = current;
+            current = temp;
+        }
+        var res = previous[s2.length];
+        return res > max ? undefined : res;
+    }
+    function endsWith(str, suffix) {
+        var expectedPos = str.length - suffix.length;
+        return expectedPos >= 0 && str.indexOf(suffix, expectedPos) === expectedPos;
+    }
+    ts.endsWith = endsWith;
+    function removeSuffix(str, suffix) {
+        return endsWith(str, suffix) ? str.slice(0, str.length - suffix.length) : str;
+    }
+    ts.removeSuffix = removeSuffix;
+    function tryRemoveSuffix(str, suffix) {
+        return endsWith(str, suffix) ? str.slice(0, str.length - suffix.length) : undefined;
+    }
+    ts.tryRemoveSuffix = tryRemoveSuffix;
+    function stringContains(str, substring) {
+        return str.indexOf(substring) !== -1;
+    }
+    ts.stringContains = stringContains;
+    function removeMinAndVersionNumbers(fileName) {
+        var trailingMinOrVersion = /[.-]((min)|(\d+(\.\d+)*))$/;
+        return fileName.replace(trailingMinOrVersion, "").replace(trailingMinOrVersion, "");
+    }
+    ts.removeMinAndVersionNumbers = removeMinAndVersionNumbers;
+    function orderedRemoveItem(array, item) {
+        for (var i = 0; i < array.length; i++) {
+            if (array[i] === item) {
+                orderedRemoveItemAt(array, i);
+                return true;
+            }
+        }
+        return false;
+    }
+    ts.orderedRemoveItem = orderedRemoveItem;
+    function orderedRemoveItemAt(array, index) {
+        for (var i = index; i < array.length - 1; i++) {
+            array[i] = array[i + 1];
+        }
+        array.pop();
+    }
+    ts.orderedRemoveItemAt = orderedRemoveItemAt;
+    function unorderedRemoveItemAt(array, index) {
+        array[index] = array[array.length - 1];
+        array.pop();
+    }
+    ts.unorderedRemoveItemAt = unorderedRemoveItemAt;
+    function unorderedRemoveItem(array, item) {
+        return unorderedRemoveFirstItemWhere(array, function (element) { return element === item; });
+    }
+    ts.unorderedRemoveItem = unorderedRemoveItem;
+    function unorderedRemoveFirstItemWhere(array, predicate) {
+        for (var i = 0; i < array.length; i++) {
+            if (predicate(array[i])) {
+                unorderedRemoveItemAt(array, i);
+                return true;
+            }
+        }
+        return false;
+    }
+    function createGetCanonicalFileName(useCaseSensitiveFileNames) {
+        return useCaseSensitiveFileNames ? identity : toFileNameLowerCase;
+    }
+    ts.createGetCanonicalFileName = createGetCanonicalFileName;
+    function patternText(_a) {
+        var prefix = _a.prefix, suffix = _a.suffix;
+        return prefix + "*" + suffix;
+    }
+    ts.patternText = patternText;
+    function matchedText(pattern, candidate) {
+        ts.Debug.assert(isPatternMatch(pattern, candidate));
+        return candidate.substring(pattern.prefix.length, candidate.length - pattern.suffix.length);
+    }
+    ts.matchedText = matchedText;
+    function findBestPatternMatch(values, getPattern, candidate) {
+        var matchedValue;
+        var longestMatchPrefixLength = -1;
+        for (var _i = 0, values_2 = values; _i < values_2.length; _i++) {
+            var v = values_2[_i];
+            var pattern = getPattern(v);
+            if (isPatternMatch(pattern, candidate) && pattern.prefix.length > longestMatchPrefixLength) {
+                longestMatchPrefixLength = pattern.prefix.length;
+                matchedValue = v;
+            }
+        }
+        return matchedValue;
+    }
+    ts.findBestPatternMatch = findBestPatternMatch;
+    function startsWith(str, prefix) {
+        return str.lastIndexOf(prefix, 0) === 0;
+    }
+    ts.startsWith = startsWith;
+    function removePrefix(str, prefix) {
+        return startsWith(str, prefix) ? str.substr(prefix.length) : str;
+    }
+    ts.removePrefix = removePrefix;
+    function tryRemovePrefix(str, prefix, getCanonicalFileName) {
+        if (getCanonicalFileName === void 0) { getCanonicalFileName = identity; }
+        return startsWith(getCanonicalFileName(str), getCanonicalFileName(prefix)) ? str.substring(prefix.length) : undefined;
+    }
+    ts.tryRemovePrefix = tryRemovePrefix;
+    function isPatternMatch(_a, candidate) {
+        var prefix = _a.prefix, suffix = _a.suffix;
+        return candidate.length >= prefix.length + suffix.length &&
+            startsWith(candidate, prefix) &&
+            endsWith(candidate, suffix);
+    }
+    function and(f, g) {
+        return function (arg) { return f(arg) && g(arg); };
+    }
+    ts.and = and;
+    function or() {
+        var fs = [];
+        for (var _i = 0; _i < arguments.length; _i++) {
+            fs[_i] = arguments[_i];
+        }
+        return function () {
+            var args = [];
+            for (var _i = 0; _i < arguments.length; _i++) {
+                args[_i] = arguments[_i];
+            }
+            for (var _a = 0, fs_1 = fs; _a < fs_1.length; _a++) {
+                var f = fs_1[_a];
+                if (f.apply(void 0, args)) {
+                    return true;
+                }
+            }
+            return false;
+        };
+    }
+    ts.or = or;
+    function not(fn) {
+        return function () {
+            var args = [];
+            for (var _i = 0; _i < arguments.length; _i++) {
+                args[_i] = arguments[_i];
+            }
+            return !fn.apply(void 0, args);
+        };
+    }
+    ts.not = not;
+    function assertType(_) { }
+    ts.assertType = assertType;
+    function singleElementArray(t) {
+        return t === undefined ? undefined : [t];
+    }
+    ts.singleElementArray = singleElementArray;
+    function enumerateInsertsAndDeletes(newItems, oldItems, comparer, inserted, deleted, unchanged) {
+        unchanged = unchanged || noop;
+        var newIndex = 0;
+        var oldIndex = 0;
+        var newLen = newItems.length;
+        var oldLen = oldItems.length;
+        while (newIndex < newLen && oldIndex < oldLen) {
+            var newItem = newItems[newIndex];
+            var oldItem = oldItems[oldIndex];
+            var compareResult = comparer(newItem, oldItem);
+            if (compareResult === -1) {
+                inserted(newItem);
+                newIndex++;
+            }
+            else if (compareResult === 1) {
+                deleted(oldItem);
+                oldIndex++;
+            }
+            else {
+                unchanged(oldItem, newItem);
+                newIndex++;
+                oldIndex++;
+            }
+        }
+        while (newIndex < newLen) {
+            inserted(newItems[newIndex++]);
+        }
+        while (oldIndex < oldLen) {
+            deleted(oldItems[oldIndex++]);
+        }
+    }
+    ts.enumerateInsertsAndDeletes = enumerateInsertsAndDeletes;
+    function fill(length, cb) {
+        var result = Array(length);
+        for (var i = 0; i < length; i++) {
+            result[i] = cb(i);
+        }
+        return result;
+    }
+    ts.fill = fill;
+    function cartesianProduct(arrays) {
+        var result = [];
+        cartesianProductWorker(arrays, result, undefined, 0);
+        return result;
+    }
+    ts.cartesianProduct = cartesianProduct;
+    function cartesianProductWorker(arrays, result, outer, index) {
+        for (var _i = 0, _a = arrays[index]; _i < _a.length; _i++) {
+            var element = _a[_i];
+            var inner = void 0;
+            if (outer) {
+                inner = outer.slice();
+                inner.push(element);
+            }
+            else {
+                inner = [element];
+            }
+            if (index === arrays.length - 1) {
+                result.push(inner);
+            }
+            else {
+                cartesianProductWorker(arrays, result, inner, index + 1);
+            }
+        }
+    }
+    function padLeft(s, length) {
+        while (s.length < length) {
+            s = " " + s;
+        }
+        return s;
+    }
+    ts.padLeft = padLeft;
+    function padRight(s, length) {
+        while (s.length < length) {
+            s = s + " ";
+        }
+        return s;
+    }
+    ts.padRight = padRight;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var Debug;
+    (function (Debug) {
+        var currentAssertionLevel = 0;
+        Debug.isDebugging = false;
+        var assertionCache = {};
+        function getAssertionLevel() {
+            return currentAssertionLevel;
+        }
+        Debug.getAssertionLevel = getAssertionLevel;
+        function setAssertionLevel(level) {
+            var prevAssertionLevel = currentAssertionLevel;
+            currentAssertionLevel = level;
+            if (level > prevAssertionLevel) {
+                for (var _i = 0, _a = ts.getOwnKeys(assertionCache); _i < _a.length; _i++) {
+                    var key = _a[_i];
+                    var cachedFunc = assertionCache[key];
+                    if (cachedFunc !== undefined && Debug[key] !== cachedFunc.assertion && level >= cachedFunc.level) {
+                        Debug[key] = cachedFunc;
+                        assertionCache[key] = undefined;
+                    }
+                }
+            }
+        }
+        Debug.setAssertionLevel = setAssertionLevel;
+        function shouldAssert(level) {
+            return currentAssertionLevel >= level;
+        }
+        Debug.shouldAssert = shouldAssert;
+        function shouldAssertFunction(level, name) {
+            if (!shouldAssert(level)) {
+                assertionCache[name] = { level: level, assertion: Debug[name] };
+                Debug[name] = ts.noop;
+                return false;
+            }
+            return true;
+        }
+        function fail(message, stackCrawlMark) {
+            debugger;
+            var e = new Error(message ? "Debug Failure. " + message : "Debug Failure.");
+            if (Error.captureStackTrace) {
+                Error.captureStackTrace(e, stackCrawlMark || fail);
+            }
+            throw e;
+        }
+        Debug.fail = fail;
+        function failBadSyntaxKind(node, message, stackCrawlMark) {
+            return fail((message || "Unexpected node.") + "\r\nNode " + formatSyntaxKind(node.kind) + " was unexpected.", stackCrawlMark || failBadSyntaxKind);
+        }
+        Debug.failBadSyntaxKind = failBadSyntaxKind;
+        function assert(expression, message, verboseDebugInfo, stackCrawlMark) {
+            if (!expression) {
+                message = message ? "False expression: " + message : "False expression.";
+                if (verboseDebugInfo) {
+                    message += "\r\nVerbose Debug Information: " + (typeof verboseDebugInfo === "string" ? verboseDebugInfo : verboseDebugInfo());
+                }
+                fail(message, stackCrawlMark || assert);
+            }
+        }
+        Debug.assert = assert;
+        function assertEqual(a, b, msg, msg2, stackCrawlMark) {
+            if (a !== b) {
+                var message = msg ? msg2 ? msg + " " + msg2 : msg : "";
+                fail("Expected " + a + " === " + b + ". " + message, stackCrawlMark || assertEqual);
+            }
+        }
+        Debug.assertEqual = assertEqual;
+        function assertLessThan(a, b, msg, stackCrawlMark) {
+            if (a >= b) {
+                fail("Expected " + a + " < " + b + ". " + (msg || ""), stackCrawlMark || assertLessThan);
+            }
+        }
+        Debug.assertLessThan = assertLessThan;
+        function assertLessThanOrEqual(a, b, stackCrawlMark) {
+            if (a > b) {
+                fail("Expected " + a + " <= " + b, stackCrawlMark || assertLessThanOrEqual);
+            }
+        }
+        Debug.assertLessThanOrEqual = assertLessThanOrEqual;
+        function assertGreaterThanOrEqual(a, b, stackCrawlMark) {
+            if (a < b) {
+                fail("Expected " + a + " >= " + b, stackCrawlMark || assertGreaterThanOrEqual);
+            }
+        }
+        Debug.assertGreaterThanOrEqual = assertGreaterThanOrEqual;
+        function assertIsDefined(value, message, stackCrawlMark) {
+            if (value === undefined || value === null) {
+                fail(message, stackCrawlMark || assertIsDefined);
+            }
+        }
+        Debug.assertIsDefined = assertIsDefined;
+        function checkDefined(value, message, stackCrawlMark) {
+            assertIsDefined(value, message, stackCrawlMark || checkDefined);
+            return value;
+        }
+        Debug.checkDefined = checkDefined;
+        Debug.assertDefined = checkDefined;
+        function assertEachIsDefined(value, message, stackCrawlMark) {
+            for (var _i = 0, value_1 = value; _i < value_1.length; _i++) {
+                var v = value_1[_i];
+                assertIsDefined(v, message, stackCrawlMark || assertEachIsDefined);
+            }
+        }
+        Debug.assertEachIsDefined = assertEachIsDefined;
+        function checkEachDefined(value, message, stackCrawlMark) {
+            assertEachIsDefined(value, message, stackCrawlMark || checkEachDefined);
+            return value;
+        }
+        Debug.checkEachDefined = checkEachDefined;
+        Debug.assertEachDefined = checkEachDefined;
+        function assertNever(member, message, stackCrawlMark) {
+            if (message === void 0) { message = "Illegal value:"; }
+            var detail = typeof member === "object" && ts.hasProperty(member, "kind") && ts.hasProperty(member, "pos") && formatSyntaxKind ? "SyntaxKind: " + formatSyntaxKind(member.kind) : JSON.stringify(member);
+            return fail(message + " " + detail, stackCrawlMark || assertNever);
+        }
+        Debug.assertNever = assertNever;
+        function assertEachNode(nodes, test, message, stackCrawlMark) {
+            if (shouldAssertFunction(1, "assertEachNode")) {
+                assert(test === undefined || ts.every(nodes, test), message || "Unexpected node.", function () { return "Node array did not pass test '" + getFunctionName(test) + "'."; }, stackCrawlMark || assertEachNode);
+            }
+        }
+        Debug.assertEachNode = assertEachNode;
+        function assertNode(node, test, message, stackCrawlMark) {
+            if (shouldAssertFunction(1, "assertNode")) {
+                assert(node !== undefined && (test === undefined || test(node)), message || "Unexpected node.", function () { return "Node " + formatSyntaxKind(node.kind) + " did not pass test '" + getFunctionName(test) + "'."; }, stackCrawlMark || assertNode);
+            }
+        }
+        Debug.assertNode = assertNode;
+        function assertNotNode(node, test, message, stackCrawlMark) {
+            if (shouldAssertFunction(1, "assertNotNode")) {
+                assert(node === undefined || test === undefined || !test(node), message || "Unexpected node.", function () { return "Node " + formatSyntaxKind(node.kind) + " should not have passed test '" + getFunctionName(test) + "'."; }, stackCrawlMark || assertNotNode);
+            }
+        }
+        Debug.assertNotNode = assertNotNode;
+        function assertOptionalNode(node, test, message, stackCrawlMark) {
+            if (shouldAssertFunction(1, "assertOptionalNode")) {
+                assert(test === undefined || node === undefined || test(node), message || "Unexpected node.", function () { return "Node " + formatSyntaxKind(node.kind) + " did not pass test '" + getFunctionName(test) + "'."; }, stackCrawlMark || assertOptionalNode);
+            }
+        }
+        Debug.assertOptionalNode = assertOptionalNode;
+        function assertOptionalToken(node, kind, message, stackCrawlMark) {
+            if (shouldAssertFunction(1, "assertOptionalToken")) {
+                assert(kind === undefined || node === undefined || node.kind === kind, message || "Unexpected node.", function () { return "Node " + formatSyntaxKind(node.kind) + " was not a '" + formatSyntaxKind(kind) + "' token."; }, stackCrawlMark || assertOptionalToken);
+            }
+        }
+        Debug.assertOptionalToken = assertOptionalToken;
+        function assertMissingNode(node, message, stackCrawlMark) {
+            if (shouldAssertFunction(1, "assertMissingNode")) {
+                assert(node === undefined, message || "Unexpected node.", function () { return "Node " + formatSyntaxKind(node.kind) + " was unexpected'."; }, stackCrawlMark || assertMissingNode);
+            }
+        }
+        Debug.assertMissingNode = assertMissingNode;
+        function getFunctionName(func) {
+            if (typeof func !== "function") {
+                return "";
+            }
+            else if (func.hasOwnProperty("name")) {
+                return func.name;
+            }
+            else {
+                var text = Function.prototype.toString.call(func);
+                var match = /^function\s+([\w\$]+)\s*\(/.exec(text);
+                return match ? match[1] : "";
+            }
+        }
+        Debug.getFunctionName = getFunctionName;
+        function formatSymbol(symbol) {
+            return "{ name: " + ts.unescapeLeadingUnderscores(symbol.escapedName) + "; flags: " + formatSymbolFlags(symbol.flags) + "; declarations: " + ts.map(symbol.declarations, function (node) { return formatSyntaxKind(node.kind); }) + " }";
+        }
+        Debug.formatSymbol = formatSymbol;
+        function formatEnum(value, enumObject, isFlags) {
+            if (value === void 0) { value = 0; }
+            var members = getEnumMembers(enumObject);
+            if (value === 0) {
+                return members.length > 0 && members[0][0] === 0 ? members[0][1] : "0";
+            }
+            if (isFlags) {
+                var result = "";
+                var remainingFlags = value;
+                for (var _i = 0, members_1 = members; _i < members_1.length; _i++) {
+                    var _a = members_1[_i], enumValue = _a[0], enumName = _a[1];
+                    if (enumValue > value) {
+                        break;
+                    }
+                    if (enumValue !== 0 && enumValue & value) {
+                        result = "" + result + (result ? "|" : "") + enumName;
+                        remainingFlags &= ~enumValue;
+                    }
+                }
+                if (remainingFlags === 0) {
+                    return result;
+                }
+            }
+            else {
+                for (var _b = 0, members_2 = members; _b < members_2.length; _b++) {
+                    var _c = members_2[_b], enumValue = _c[0], enumName = _c[1];
+                    if (enumValue === value) {
+                        return enumName;
+                    }
+                }
+            }
+            return value.toString();
+        }
+        Debug.formatEnum = formatEnum;
+        function getEnumMembers(enumObject) {
+            var result = [];
+            for (var name in enumObject) {
+                var value = enumObject[name];
+                if (typeof value === "number") {
+                    result.push([value, name]);
+                }
+            }
+            return ts.stableSort(result, function (x, y) { return ts.compareValues(x[0], y[0]); });
+        }
+        function formatSyntaxKind(kind) {
+            return formatEnum(kind, ts.SyntaxKind, false);
+        }
+        Debug.formatSyntaxKind = formatSyntaxKind;
+        function formatNodeFlags(flags) {
+            return formatEnum(flags, ts.NodeFlags, true);
+        }
+        Debug.formatNodeFlags = formatNodeFlags;
+        function formatModifierFlags(flags) {
+            return formatEnum(flags, ts.ModifierFlags, true);
+        }
+        Debug.formatModifierFlags = formatModifierFlags;
+        function formatTransformFlags(flags) {
+            return formatEnum(flags, ts.TransformFlags, true);
+        }
+        Debug.formatTransformFlags = formatTransformFlags;
+        function formatEmitFlags(flags) {
+            return formatEnum(flags, ts.EmitFlags, true);
+        }
+        Debug.formatEmitFlags = formatEmitFlags;
+        function formatSymbolFlags(flags) {
+            return formatEnum(flags, ts.SymbolFlags, true);
+        }
+        Debug.formatSymbolFlags = formatSymbolFlags;
+        function formatTypeFlags(flags) {
+            return formatEnum(flags, ts.TypeFlags, true);
+        }
+        Debug.formatTypeFlags = formatTypeFlags;
+        function formatObjectFlags(flags) {
+            return formatEnum(flags, ts.ObjectFlags, true);
+        }
+        Debug.formatObjectFlags = formatObjectFlags;
+        var isDebugInfoEnabled = false;
+        var extendedDebugModule;
+        function extendedDebug() {
+            enableDebugInfo();
+            if (!extendedDebugModule) {
+                throw new Error("Debugging helpers could not be loaded.");
+            }
+            return extendedDebugModule;
+        }
+        function printControlFlowGraph(flowNode) {
+            return console.log(formatControlFlowGraph(flowNode));
+        }
+        Debug.printControlFlowGraph = printControlFlowGraph;
+        function formatControlFlowGraph(flowNode) {
+            return extendedDebug().formatControlFlowGraph(flowNode);
+        }
+        Debug.formatControlFlowGraph = formatControlFlowGraph;
+        function attachFlowNodeDebugInfo(flowNode) {
+            if (isDebugInfoEnabled) {
+                if (!("__debugFlowFlags" in flowNode)) {
+                    Object.defineProperties(flowNode, {
+                        __debugFlowFlags: { get: function () { return formatEnum(this.flags, ts.FlowFlags, true); } },
+                        __debugToString: { value: function () { return formatControlFlowGraph(this); } }
+                    });
+                }
+            }
+        }
+        Debug.attachFlowNodeDebugInfo = attachFlowNodeDebugInfo;
+        function enableDebugInfo() {
+            if (isDebugInfoEnabled)
+                return;
+            Object.defineProperties(ts.objectAllocator.getSymbolConstructor().prototype, {
+                __debugFlags: { get: function () { return formatSymbolFlags(this.flags); } }
+            });
+            Object.defineProperties(ts.objectAllocator.getTypeConstructor().prototype, {
+                __debugFlags: { get: function () { return formatTypeFlags(this.flags); } },
+                __debugObjectFlags: { get: function () { return this.flags & 524288 ? formatObjectFlags(this.objectFlags) : ""; } },
+                __debugTypeToString: { value: function () { return this.checker.typeToString(this); } },
+            });
+            var nodeConstructors = [
+                ts.objectAllocator.getNodeConstructor(),
+                ts.objectAllocator.getIdentifierConstructor(),
+                ts.objectAllocator.getTokenConstructor(),
+                ts.objectAllocator.getSourceFileConstructor()
+            ];
+            for (var _i = 0, nodeConstructors_1 = nodeConstructors; _i < nodeConstructors_1.length; _i++) {
+                var ctor = nodeConstructors_1[_i];
+                if (!ctor.prototype.hasOwnProperty("__debugKind")) {
+                    Object.defineProperties(ctor.prototype, {
+                        __debugKind: { get: function () { return formatSyntaxKind(this.kind); } },
+                        __debugNodeFlags: { get: function () { return formatNodeFlags(this.flags); } },
+                        __debugModifierFlags: { get: function () { return formatModifierFlags(ts.getModifierFlagsNoCache(this)); } },
+                        __debugTransformFlags: { get: function () { return formatTransformFlags(this.transformFlags); } },
+                        __debugIsParseTreeNode: { get: function () { return ts.isParseTreeNode(this); } },
+                        __debugEmitFlags: { get: function () { return formatEmitFlags(ts.getEmitFlags(this)); } },
+                        __debugGetText: {
+                            value: function (includeTrivia) {
+                                if (ts.nodeIsSynthesized(this))
+                                    return "";
+                                var parseNode = ts.getParseTreeNode(this);
+                                var sourceFile = parseNode && ts.getSourceFileOfNode(parseNode);
+                                return sourceFile ? ts.getSourceTextOfNodeFromSourceFile(sourceFile, parseNode, includeTrivia) : "";
+                            }
+                        }
+                    });
+                }
+            }
+            try {
+                if (ts.sys && ts.sys.require) {
+                    var basePath = ts.getDirectoryPath(ts.resolvePath(ts.sys.getExecutingFilePath()));
+                    var result = ts.sys.require(basePath, "./compiler-debug");
+                    if (!result.error) {
+                        result.module.init(ts);
+                        extendedDebugModule = result.module;
+                    }
+                }
+            }
+            catch (_a) {
+            }
+            isDebugInfoEnabled = true;
+        }
+        Debug.enableDebugInfo = enableDebugInfo;
+    })(Debug = ts.Debug || (ts.Debug = {}));
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    ts.timestamp = typeof performance !== "undefined" && performance.now ? function () { return performance.now(); } : Date.now ? Date.now : function () { return +(new Date()); };
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var performance;
+    (function (performance) {
+        var profilerEvent = typeof onProfilerEvent === "function" && onProfilerEvent.profiler === true ? onProfilerEvent : function () { };
+        var enabled = false;
+        var profilerStart = 0;
+        var counts;
+        var marks;
+        var measures;
+        function createTimerIf(condition, measureName, startMarkName, endMarkName) {
+            return condition ? createTimer(measureName, startMarkName, endMarkName) : performance.nullTimer;
+        }
+        performance.createTimerIf = createTimerIf;
+        function createTimer(measureName, startMarkName, endMarkName) {
+            var enterCount = 0;
+            return {
+                enter: enter,
+                exit: exit
+            };
+            function enter() {
+                if (++enterCount === 1) {
+                    mark(startMarkName);
+                }
+            }
+            function exit() {
+                if (--enterCount === 0) {
+                    mark(endMarkName);
+                    measure(measureName, startMarkName, endMarkName);
+                }
+                else if (enterCount < 0) {
+                    ts.Debug.fail("enter/exit count does not match.");
+                }
+            }
+        }
+        performance.createTimer = createTimer;
+        performance.nullTimer = { enter: ts.noop, exit: ts.noop };
+        function mark(markName) {
+            if (enabled) {
+                marks.set(markName, ts.timestamp());
+                counts.set(markName, (counts.get(markName) || 0) + 1);
+                profilerEvent(markName);
+            }
+        }
+        performance.mark = mark;
+        function measure(measureName, startMarkName, endMarkName) {
+            if (enabled) {
+                var end = endMarkName && marks.get(endMarkName) || ts.timestamp();
+                var start = startMarkName && marks.get(startMarkName) || profilerStart;
+                measures.set(measureName, (measures.get(measureName) || 0) + (end - start));
+            }
+        }
+        performance.measure = measure;
+        function getCount(markName) {
+            return counts && counts.get(markName) || 0;
+        }
+        performance.getCount = getCount;
+        function getDuration(measureName) {
+            return measures && measures.get(measureName) || 0;
+        }
+        performance.getDuration = getDuration;
+        function forEachMeasure(cb) {
+            measures.forEach(function (measure, key) {
+                cb(key, measure);
+            });
+        }
+        performance.forEachMeasure = forEachMeasure;
+        function enable() {
+            counts = ts.createMap();
+            marks = ts.createMap();
+            measures = ts.createMap();
+            enabled = true;
+            profilerStart = ts.timestamp();
+        }
+        performance.enable = enable;
+        function disable() {
+            enabled = false;
+        }
+        performance.disable = disable;
+    })(performance = ts.performance || (ts.performance = {}));
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var nullLogger = {
+        logEvent: ts.noop,
+        logErrEvent: ts.noop,
+        logPerfEvent: ts.noop,
+        logInfoEvent: ts.noop,
+        logStartCommand: ts.noop,
+        logStopCommand: ts.noop,
+        logStartUpdateProgram: ts.noop,
+        logStopUpdateProgram: ts.noop,
+        logStartUpdateGraph: ts.noop,
+        logStopUpdateGraph: ts.noop,
+        logStartResolveModule: ts.noop,
+        logStopResolveModule: ts.noop,
+        logStartParseSourceFile: ts.noop,
+        logStopParseSourceFile: ts.noop,
+        logStartReadFile: ts.noop,
+        logStopReadFile: ts.noop,
+        logStartBindFile: ts.noop,
+        logStopBindFile: ts.noop,
+        logStartScheduledOperation: ts.noop,
+        logStopScheduledOperation: ts.noop,
+    };
+    var etwModule;
+    try {
+        etwModule = require("@microsoft/typescript-etw");
+    }
+    catch (e) {
+        etwModule = undefined;
+    }
+    ts.perfLogger = etwModule && etwModule.logEvent ? etwModule : nullLogger;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var versionRegExp = /^(0|[1-9]\d*)(?:\.(0|[1-9]\d*)(?:\.(0|[1-9]\d*)(?:\-([a-z0-9-.]+))?(?:\+([a-z0-9-.]+))?)?)?$/i;
+    var prereleaseRegExp = /^(?:0|[1-9]\d*|[a-z-][a-z0-9-]*)(?:\.(?:0|[1-9]\d*|[a-z-][a-z0-9-]*))*$/i;
+    var buildRegExp = /^[a-z0-9-]+(?:\.[a-z0-9-]+)*$/i;
+    var numericIdentifierRegExp = /^(0|[1-9]\d*)$/;
+    var Version = (function () {
+        function Version(major, minor, patch, prerelease, build) {
+            if (minor === void 0) { minor = 0; }
+            if (patch === void 0) { patch = 0; }
+            if (prerelease === void 0) { prerelease = ""; }
+            if (build === void 0) { build = ""; }
+            if (typeof major === "string") {
+                var result = ts.Debug.checkDefined(tryParseComponents(major), "Invalid version");
+                (major = result.major, minor = result.minor, patch = result.patch, prerelease = result.prerelease, build = result.build);
+            }
+            ts.Debug.assert(major >= 0, "Invalid argument: major");
+            ts.Debug.assert(minor >= 0, "Invalid argument: minor");
+            ts.Debug.assert(patch >= 0, "Invalid argument: patch");
+            ts.Debug.assert(!prerelease || prereleaseRegExp.test(prerelease), "Invalid argument: prerelease");
+            ts.Debug.assert(!build || buildRegExp.test(build), "Invalid argument: build");
+            this.major = major;
+            this.minor = minor;
+            this.patch = patch;
+            this.prerelease = prerelease ? prerelease.split(".") : ts.emptyArray;
+            this.build = build ? build.split(".") : ts.emptyArray;
+        }
+        Version.tryParse = function (text) {
+            var result = tryParseComponents(text);
+            if (!result)
+                return undefined;
+            var major = result.major, minor = result.minor, patch = result.patch, prerelease = result.prerelease, build = result.build;
+            return new Version(major, minor, patch, prerelease, build);
+        };
+        Version.prototype.compareTo = function (other) {
+            if (this === other)
+                return 0;
+            if (other === undefined)
+                return 1;
+            return ts.compareValues(this.major, other.major)
+                || ts.compareValues(this.minor, other.minor)
+                || ts.compareValues(this.patch, other.patch)
+                || comparePrerelaseIdentifiers(this.prerelease, other.prerelease);
+        };
+        Version.prototype.increment = function (field) {
+            switch (field) {
+                case "major": return new Version(this.major + 1, 0, 0);
+                case "minor": return new Version(this.major, this.minor + 1, 0);
+                case "patch": return new Version(this.major, this.minor, this.patch + 1);
+                default: return ts.Debug.assertNever(field);
+            }
+        };
+        Version.prototype.toString = function () {
+            var result = this.major + "." + this.minor + "." + this.patch;
+            if (ts.some(this.prerelease))
+                result += "-" + this.prerelease.join(".");
+            if (ts.some(this.build))
+                result += "+" + this.build.join(".");
+            return result;
+        };
+        Version.zero = new Version(0, 0, 0);
+        return Version;
+    }());
+    ts.Version = Version;
+    function tryParseComponents(text) {
+        var match = versionRegExp.exec(text);
+        if (!match)
+            return undefined;
+        var major = match[1], _a = match[2], minor = _a === void 0 ? "0" : _a, _b = match[3], patch = _b === void 0 ? "0" : _b, _c = match[4], prerelease = _c === void 0 ? "" : _c, _d = match[5], build = _d === void 0 ? "" : _d;
+        if (prerelease && !prereleaseRegExp.test(prerelease))
+            return undefined;
+        if (build && !buildRegExp.test(build))
+            return undefined;
+        return {
+            major: parseInt(major, 10),
+            minor: parseInt(minor, 10),
+            patch: parseInt(patch, 10),
+            prerelease: prerelease,
+            build: build
+        };
+    }
+    function comparePrerelaseIdentifiers(left, right) {
+        if (left === right)
+            return 0;
+        if (left.length === 0)
+            return right.length === 0 ? 0 : 1;
+        if (right.length === 0)
+            return -1;
+        var length = Math.min(left.length, right.length);
+        for (var i = 0; i < length; i++) {
+            var leftIdentifier = left[i];
+            var rightIdentifier = right[i];
+            if (leftIdentifier === rightIdentifier)
+                continue;
+            var leftIsNumeric = numericIdentifierRegExp.test(leftIdentifier);
+            var rightIsNumeric = numericIdentifierRegExp.test(rightIdentifier);
+            if (leftIsNumeric || rightIsNumeric) {
+                if (leftIsNumeric !== rightIsNumeric)
+                    return leftIsNumeric ? -1 : 1;
+                var result = ts.compareValues(+leftIdentifier, +rightIdentifier);
+                if (result)
+                    return result;
+            }
+            else {
+                var result = ts.compareStringsCaseSensitive(leftIdentifier, rightIdentifier);
+                if (result)
+                    return result;
+            }
+        }
+        return ts.compareValues(left.length, right.length);
+    }
+    var VersionRange = (function () {
+        function VersionRange(spec) {
+            this._alternatives = spec ? ts.Debug.checkDefined(parseRange(spec), "Invalid range spec.") : ts.emptyArray;
+        }
+        VersionRange.tryParse = function (text) {
+            var sets = parseRange(text);
+            if (sets) {
+                var range = new VersionRange("");
+                range._alternatives = sets;
+                return range;
+            }
+            return undefined;
+        };
+        VersionRange.prototype.test = function (version) {
+            if (typeof version === "string")
+                version = new Version(version);
+            return testDisjunction(version, this._alternatives);
+        };
+        VersionRange.prototype.toString = function () {
+            return formatDisjunction(this._alternatives);
+        };
+        return VersionRange;
+    }());
+    ts.VersionRange = VersionRange;
+    var logicalOrRegExp = /\s*\|\|\s*/g;
+    var whitespaceRegExp = /\s+/g;
+    var partialRegExp = /^([xX*0]|[1-9]\d*)(?:\.([xX*0]|[1-9]\d*)(?:\.([xX*0]|[1-9]\d*)(?:-([a-z0-9-.]+))?(?:\+([a-z0-9-.]+))?)?)?$/i;
+    var hyphenRegExp = /^\s*([a-z0-9-+.*]+)\s+-\s+([a-z0-9-+.*]+)\s*$/i;
+    var rangeRegExp = /^\s*(~|\^|<|<=|>|>=|=)?\s*([a-z0-9-+.*]+)$/i;
+    function parseRange(text) {
+        var alternatives = [];
+        for (var _i = 0, _a = text.trim().split(logicalOrRegExp); _i < _a.length; _i++) {
+            var range = _a[_i];
+            if (!range)
+                continue;
+            var comparators = [];
+            var match = hyphenRegExp.exec(range);
+            if (match) {
+                if (!parseHyphen(match[1], match[2], comparators))
+                    return undefined;
+            }
+            else {
+                for (var _b = 0, _c = range.split(whitespaceRegExp); _b < _c.length; _b++) {
+                    var simple = _c[_b];
+                    var match_1 = rangeRegExp.exec(simple);
+                    if (!match_1 || !parseComparator(match_1[1], match_1[2], comparators))
+                        return undefined;
+                }
+            }
+            alternatives.push(comparators);
+        }
+        return alternatives;
+    }
+    function parsePartial(text) {
+        var match = partialRegExp.exec(text);
+        if (!match)
+            return undefined;
+        var major = match[1], _a = match[2], minor = _a === void 0 ? "*" : _a, _b = match[3], patch = _b === void 0 ? "*" : _b, prerelease = match[4], build = match[5];
+        var version = new Version(isWildcard(major) ? 0 : parseInt(major, 10), isWildcard(major) || isWildcard(minor) ? 0 : parseInt(minor, 10), isWildcard(major) || isWildcard(minor) || isWildcard(patch) ? 0 : parseInt(patch, 10), prerelease, build);
+        return { version: version, major: major, minor: minor, patch: patch };
+    }
+    function parseHyphen(left, right, comparators) {
+        var leftResult = parsePartial(left);
+        if (!leftResult)
+            return false;
+        var rightResult = parsePartial(right);
+        if (!rightResult)
+            return false;
+        if (!isWildcard(leftResult.major)) {
+            comparators.push(createComparator(">=", leftResult.version));
+        }
+        if (!isWildcard(rightResult.major)) {
+            comparators.push(isWildcard(rightResult.minor) ? createComparator("<", rightResult.version.increment("major")) :
+                isWildcard(rightResult.patch) ? createComparator("<", rightResult.version.increment("minor")) :
+                    createComparator("<=", rightResult.version));
+        }
+        return true;
+    }
+    function parseComparator(operator, text, comparators) {
+        var result = parsePartial(text);
+        if (!result)
+            return false;
+        var version = result.version, major = result.major, minor = result.minor, patch = result.patch;
+        if (!isWildcard(major)) {
+            switch (operator) {
+                case "~":
+                    comparators.push(createComparator(">=", version));
+                    comparators.push(createComparator("<", version.increment(isWildcard(minor) ? "major" :
+                        "minor")));
+                    break;
+                case "^":
+                    comparators.push(createComparator(">=", version));
+                    comparators.push(createComparator("<", version.increment(version.major > 0 || isWildcard(minor) ? "major" :
+                        version.minor > 0 || isWildcard(patch) ? "minor" :
+                            "patch")));
+                    break;
+                case "<":
+                case ">=":
+                    comparators.push(createComparator(operator, version));
+                    break;
+                case "<=":
+                case ">":
+                    comparators.push(isWildcard(minor) ? createComparator(operator === "<=" ? "<" : ">=", version.increment("major")) :
+                        isWildcard(patch) ? createComparator(operator === "<=" ? "<" : ">=", version.increment("minor")) :
+                            createComparator(operator, version));
+                    break;
+                case "=":
+                case undefined:
+                    if (isWildcard(minor) || isWildcard(patch)) {
+                        comparators.push(createComparator(">=", version));
+                        comparators.push(createComparator("<", version.increment(isWildcard(minor) ? "major" : "minor")));
+                    }
+                    else {
+                        comparators.push(createComparator("=", version));
+                    }
+                    break;
+                default:
+                    return false;
+            }
+        }
+        else if (operator === "<" || operator === ">") {
+            comparators.push(createComparator("<", Version.zero));
+        }
+        return true;
+    }
+    function isWildcard(part) {
+        return part === "*" || part === "x" || part === "X";
+    }
+    function createComparator(operator, operand) {
+        return { operator: operator, operand: operand };
+    }
+    function testDisjunction(version, alternatives) {
+        if (alternatives.length === 0)
+            return true;
+        for (var _i = 0, alternatives_1 = alternatives; _i < alternatives_1.length; _i++) {
+            var alternative = alternatives_1[_i];
+            if (testAlternative(version, alternative))
+                return true;
+        }
+        return false;
+    }
+    function testAlternative(version, comparators) {
+        for (var _i = 0, comparators_1 = comparators; _i < comparators_1.length; _i++) {
+            var comparator = comparators_1[_i];
+            if (!testComparator(version, comparator.operator, comparator.operand))
+                return false;
+        }
+        return true;
+    }
+    function testComparator(version, operator, operand) {
+        var cmp = version.compareTo(operand);
+        switch (operator) {
+            case "<": return cmp < 0;
+            case "<=": return cmp <= 0;
+            case ">": return cmp > 0;
+            case ">=": return cmp >= 0;
+            case "=": return cmp === 0;
+            default: return ts.Debug.assertNever(operator);
+        }
+    }
+    function formatDisjunction(alternatives) {
+        return ts.map(alternatives, formatAlternative).join(" || ") || "*";
+    }
+    function formatAlternative(comparators) {
+        return ts.map(comparators, formatComparator).join(" ");
+    }
+    function formatComparator(comparator) {
+        return "" + comparator.operator + comparator.operand;
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var OperationCanceledException = (function () {
+        function OperationCanceledException() {
+        }
+        return OperationCanceledException;
+    }());
+    ts.OperationCanceledException = OperationCanceledException;
+    var RefFileKind;
+    (function (RefFileKind) {
+        RefFileKind[RefFileKind["Import"] = 0] = "Import";
+        RefFileKind[RefFileKind["ReferenceFile"] = 1] = "ReferenceFile";
+        RefFileKind[RefFileKind["TypeReferenceDirective"] = 2] = "TypeReferenceDirective";
+    })(RefFileKind = ts.RefFileKind || (ts.RefFileKind = {}));
+    var ExitStatus;
+    (function (ExitStatus) {
+        ExitStatus[ExitStatus["Success"] = 0] = "Success";
+        ExitStatus[ExitStatus["DiagnosticsPresent_OutputsSkipped"] = 1] = "DiagnosticsPresent_OutputsSkipped";
+        ExitStatus[ExitStatus["DiagnosticsPresent_OutputsGenerated"] = 2] = "DiagnosticsPresent_OutputsGenerated";
+        ExitStatus[ExitStatus["InvalidProject_OutputsSkipped"] = 3] = "InvalidProject_OutputsSkipped";
+        ExitStatus[ExitStatus["ProjectReferenceCycle_OutputsSkipped"] = 4] = "ProjectReferenceCycle_OutputsSkipped";
+        ExitStatus[ExitStatus["ProjectReferenceCycle_OutputsSkupped"] = 4] = "ProjectReferenceCycle_OutputsSkupped";
+    })(ExitStatus = ts.ExitStatus || (ts.ExitStatus = {}));
+    var TypeReferenceSerializationKind;
+    (function (TypeReferenceSerializationKind) {
+        TypeReferenceSerializationKind[TypeReferenceSerializationKind["Unknown"] = 0] = "Unknown";
+        TypeReferenceSerializationKind[TypeReferenceSerializationKind["TypeWithConstructSignatureAndValue"] = 1] = "TypeWithConstructSignatureAndValue";
+        TypeReferenceSerializationKind[TypeReferenceSerializationKind["VoidNullableOrNeverType"] = 2] = "VoidNullableOrNeverType";
+        TypeReferenceSerializationKind[TypeReferenceSerializationKind["NumberLikeType"] = 3] = "NumberLikeType";
+        TypeReferenceSerializationKind[TypeReferenceSerializationKind["BigIntLikeType"] = 4] = "BigIntLikeType";
+        TypeReferenceSerializationKind[TypeReferenceSerializationKind["StringLikeType"] = 5] = "StringLikeType";
+        TypeReferenceSerializationKind[TypeReferenceSerializationKind["BooleanType"] = 6] = "BooleanType";
+        TypeReferenceSerializationKind[TypeReferenceSerializationKind["ArrayLikeType"] = 7] = "ArrayLikeType";
+        TypeReferenceSerializationKind[TypeReferenceSerializationKind["ESSymbolType"] = 8] = "ESSymbolType";
+        TypeReferenceSerializationKind[TypeReferenceSerializationKind["Promise"] = 9] = "Promise";
+        TypeReferenceSerializationKind[TypeReferenceSerializationKind["TypeWithCallSignature"] = 10] = "TypeWithCallSignature";
+        TypeReferenceSerializationKind[TypeReferenceSerializationKind["ObjectType"] = 11] = "ObjectType";
+    })(TypeReferenceSerializationKind = ts.TypeReferenceSerializationKind || (ts.TypeReferenceSerializationKind = {}));
+    var DiagnosticCategory;
+    (function (DiagnosticCategory) {
+        DiagnosticCategory[DiagnosticCategory["Warning"] = 0] = "Warning";
+        DiagnosticCategory[DiagnosticCategory["Error"] = 1] = "Error";
+        DiagnosticCategory[DiagnosticCategory["Suggestion"] = 2] = "Suggestion";
+        DiagnosticCategory[DiagnosticCategory["Message"] = 3] = "Message";
+    })(DiagnosticCategory = ts.DiagnosticCategory || (ts.DiagnosticCategory = {}));
+    function diagnosticCategoryName(d, lowerCase) {
+        if (lowerCase === void 0) { lowerCase = true; }
+        var name = DiagnosticCategory[d.category];
+        return lowerCase ? name.toLowerCase() : name;
+    }
+    ts.diagnosticCategoryName = diagnosticCategoryName;
+    var ModuleResolutionKind;
+    (function (ModuleResolutionKind) {
+        ModuleResolutionKind[ModuleResolutionKind["Classic"] = 1] = "Classic";
+        ModuleResolutionKind[ModuleResolutionKind["NodeJs"] = 2] = "NodeJs";
+    })(ModuleResolutionKind = ts.ModuleResolutionKind || (ts.ModuleResolutionKind = {}));
+    var WatchFileKind;
+    (function (WatchFileKind) {
+        WatchFileKind[WatchFileKind["FixedPollingInterval"] = 0] = "FixedPollingInterval";
+        WatchFileKind[WatchFileKind["PriorityPollingInterval"] = 1] = "PriorityPollingInterval";
+        WatchFileKind[WatchFileKind["DynamicPriorityPolling"] = 2] = "DynamicPriorityPolling";
+        WatchFileKind[WatchFileKind["UseFsEvents"] = 3] = "UseFsEvents";
+        WatchFileKind[WatchFileKind["UseFsEventsOnParentDirectory"] = 4] = "UseFsEventsOnParentDirectory";
+    })(WatchFileKind = ts.WatchFileKind || (ts.WatchFileKind = {}));
+    var WatchDirectoryKind;
+    (function (WatchDirectoryKind) {
+        WatchDirectoryKind[WatchDirectoryKind["UseFsEvents"] = 0] = "UseFsEvents";
+        WatchDirectoryKind[WatchDirectoryKind["FixedPollingInterval"] = 1] = "FixedPollingInterval";
+        WatchDirectoryKind[WatchDirectoryKind["DynamicPriorityPolling"] = 2] = "DynamicPriorityPolling";
+    })(WatchDirectoryKind = ts.WatchDirectoryKind || (ts.WatchDirectoryKind = {}));
+    var PollingWatchKind;
+    (function (PollingWatchKind) {
+        PollingWatchKind[PollingWatchKind["FixedInterval"] = 0] = "FixedInterval";
+        PollingWatchKind[PollingWatchKind["PriorityInterval"] = 1] = "PriorityInterval";
+        PollingWatchKind[PollingWatchKind["DynamicPriority"] = 2] = "DynamicPriority";
+    })(PollingWatchKind = ts.PollingWatchKind || (ts.PollingWatchKind = {}));
+    var ModuleKind;
+    (function (ModuleKind) {
+        ModuleKind[ModuleKind["None"] = 0] = "None";
+        ModuleKind[ModuleKind["CommonJS"] = 1] = "CommonJS";
+        ModuleKind[ModuleKind["AMD"] = 2] = "AMD";
+        ModuleKind[ModuleKind["UMD"] = 3] = "UMD";
+        ModuleKind[ModuleKind["System"] = 4] = "System";
+        ModuleKind[ModuleKind["ES2015"] = 5] = "ES2015";
+        ModuleKind[ModuleKind["ES2020"] = 6] = "ES2020";
+        ModuleKind[ModuleKind["ESNext"] = 99] = "ESNext";
+    })(ModuleKind = ts.ModuleKind || (ts.ModuleKind = {}));
+    ts.commentPragmas = {
+        "reference": {
+            args: [
+                { name: "types", optional: true, captureSpan: true },
+                { name: "lib", optional: true, captureSpan: true },
+                { name: "path", optional: true, captureSpan: true },
+                { name: "no-default-lib", optional: true }
+            ],
+            kind: 1
+        },
+        "amd-dependency": {
+            args: [{ name: "path" }, { name: "name", optional: true }],
+            kind: 1
+        },
+        "amd-module": {
+            args: [{ name: "name" }],
+            kind: 1
+        },
+        "ts-check": {
+            kind: 2
+        },
+        "ts-nocheck": {
+            kind: 2
+        },
+        "jsx": {
+            args: [{ name: "factory" }],
+            kind: 4
+        },
+    };
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function generateDjb2Hash(data) {
+        var acc = 5381;
+        for (var i = 0; i < data.length; i++) {
+            acc = ((acc << 5) + acc) + data.charCodeAt(i);
+        }
+        return acc.toString();
+    }
+    ts.generateDjb2Hash = generateDjb2Hash;
+    function setStackTraceLimit() {
+        if (Error.stackTraceLimit < 100) {
+            Error.stackTraceLimit = 100;
+        }
+    }
+    ts.setStackTraceLimit = setStackTraceLimit;
+    var FileWatcherEventKind;
+    (function (FileWatcherEventKind) {
+        FileWatcherEventKind[FileWatcherEventKind["Created"] = 0] = "Created";
+        FileWatcherEventKind[FileWatcherEventKind["Changed"] = 1] = "Changed";
+        FileWatcherEventKind[FileWatcherEventKind["Deleted"] = 2] = "Deleted";
+    })(FileWatcherEventKind = ts.FileWatcherEventKind || (ts.FileWatcherEventKind = {}));
+    var PollingInterval;
+    (function (PollingInterval) {
+        PollingInterval[PollingInterval["High"] = 2000] = "High";
+        PollingInterval[PollingInterval["Medium"] = 500] = "Medium";
+        PollingInterval[PollingInterval["Low"] = 250] = "Low";
+    })(PollingInterval = ts.PollingInterval || (ts.PollingInterval = {}));
+    ts.missingFileModifiedTime = new Date(0);
+    function createPollingIntervalBasedLevels(levels) {
+        var _a;
+        return _a = {},
+            _a[PollingInterval.Low] = levels.Low,
+            _a[PollingInterval.Medium] = levels.Medium,
+            _a[PollingInterval.High] = levels.High,
+            _a;
+    }
+    var defaultChunkLevels = { Low: 32, Medium: 64, High: 256 };
+    var pollingChunkSize = createPollingIntervalBasedLevels(defaultChunkLevels);
+    ts.unchangedPollThresholds = createPollingIntervalBasedLevels(defaultChunkLevels);
+    function setCustomPollingValues(system) {
+        if (!system.getEnvironmentVariable) {
+            return;
+        }
+        var pollingIntervalChanged = setCustomLevels("TSC_WATCH_POLLINGINTERVAL", PollingInterval);
+        pollingChunkSize = getCustomPollingBasedLevels("TSC_WATCH_POLLINGCHUNKSIZE", defaultChunkLevels) || pollingChunkSize;
+        ts.unchangedPollThresholds = getCustomPollingBasedLevels("TSC_WATCH_UNCHANGEDPOLLTHRESHOLDS", defaultChunkLevels) || ts.unchangedPollThresholds;
+        function getLevel(envVar, level) {
+            return system.getEnvironmentVariable(envVar + "_" + level.toUpperCase());
+        }
+        function getCustomLevels(baseVariable) {
+            var customLevels;
+            setCustomLevel("Low");
+            setCustomLevel("Medium");
+            setCustomLevel("High");
+            return customLevels;
+            function setCustomLevel(level) {
+                var customLevel = getLevel(baseVariable, level);
+                if (customLevel) {
+                    (customLevels || (customLevels = {}))[level] = Number(customLevel);
+                }
+            }
+        }
+        function setCustomLevels(baseVariable, levels) {
+            var customLevels = getCustomLevels(baseVariable);
+            if (customLevels) {
+                setLevel("Low");
+                setLevel("Medium");
+                setLevel("High");
+                return true;
+            }
+            return false;
+            function setLevel(level) {
+                levels[level] = customLevels[level] || levels[level];
+            }
+        }
+        function getCustomPollingBasedLevels(baseVariable, defaultLevels) {
+            var customLevels = getCustomLevels(baseVariable);
+            return (pollingIntervalChanged || customLevels) &&
+                createPollingIntervalBasedLevels(customLevels ? __assign(__assign({}, defaultLevels), customLevels) : defaultLevels);
+        }
+    }
+    ts.setCustomPollingValues = setCustomPollingValues;
+    function createDynamicPriorityPollingWatchFile(host) {
+        var watchedFiles = [];
+        var changedFilesInLastPoll = [];
+        var lowPollingIntervalQueue = createPollingIntervalQueue(PollingInterval.Low);
+        var mediumPollingIntervalQueue = createPollingIntervalQueue(PollingInterval.Medium);
+        var highPollingIntervalQueue = createPollingIntervalQueue(PollingInterval.High);
+        return watchFile;
+        function watchFile(fileName, callback, defaultPollingInterval) {
+            var file = {
+                fileName: fileName,
+                callback: callback,
+                unchangedPolls: 0,
+                mtime: getModifiedTime(fileName)
+            };
+            watchedFiles.push(file);
+            addToPollingIntervalQueue(file, defaultPollingInterval);
+            return {
+                close: function () {
+                    file.isClosed = true;
+                    ts.unorderedRemoveItem(watchedFiles, file);
+                }
+            };
+        }
+        function createPollingIntervalQueue(pollingInterval) {
+            var queue = [];
+            queue.pollingInterval = pollingInterval;
+            queue.pollIndex = 0;
+            queue.pollScheduled = false;
+            return queue;
+        }
+        function pollPollingIntervalQueue(queue) {
+            queue.pollIndex = pollQueue(queue, queue.pollingInterval, queue.pollIndex, pollingChunkSize[queue.pollingInterval]);
+            if (queue.length) {
+                scheduleNextPoll(queue.pollingInterval);
+            }
+            else {
+                ts.Debug.assert(queue.pollIndex === 0);
+                queue.pollScheduled = false;
+            }
+        }
+        function pollLowPollingIntervalQueue(queue) {
+            pollQueue(changedFilesInLastPoll, PollingInterval.Low, 0, changedFilesInLastPoll.length);
+            pollPollingIntervalQueue(queue);
+            if (!queue.pollScheduled && changedFilesInLastPoll.length) {
+                scheduleNextPoll(PollingInterval.Low);
+            }
+        }
+        function pollQueue(queue, pollingInterval, pollIndex, chunkSize) {
+            var needsVisit = queue.length;
+            var definedValueCopyToIndex = pollIndex;
+            for (var polled = 0; polled < chunkSize && needsVisit > 0; nextPollIndex(), needsVisit--) {
+                var watchedFile = queue[pollIndex];
+                if (!watchedFile) {
+                    continue;
+                }
+                else if (watchedFile.isClosed) {
+                    queue[pollIndex] = undefined;
+                    continue;
+                }
+                polled++;
+                var fileChanged = onWatchedFileStat(watchedFile, getModifiedTime(watchedFile.fileName));
+                if (watchedFile.isClosed) {
+                    queue[pollIndex] = undefined;
+                }
+                else if (fileChanged) {
+                    watchedFile.unchangedPolls = 0;
+                    if (queue !== changedFilesInLastPoll) {
+                        queue[pollIndex] = undefined;
+                        addChangedFileToLowPollingIntervalQueue(watchedFile);
+                    }
+                }
+                else if (watchedFile.unchangedPolls !== ts.unchangedPollThresholds[pollingInterval]) {
+                    watchedFile.unchangedPolls++;
+                }
+                else if (queue === changedFilesInLastPoll) {
+                    watchedFile.unchangedPolls = 1;
+                    queue[pollIndex] = undefined;
+                    addToPollingIntervalQueue(watchedFile, PollingInterval.Low);
+                }
+                else if (pollingInterval !== PollingInterval.High) {
+                    watchedFile.unchangedPolls++;
+                    queue[pollIndex] = undefined;
+                    addToPollingIntervalQueue(watchedFile, pollingInterval === PollingInterval.Low ? PollingInterval.Medium : PollingInterval.High);
+                }
+                if (queue[pollIndex]) {
+                    if (definedValueCopyToIndex < pollIndex) {
+                        queue[definedValueCopyToIndex] = watchedFile;
+                        queue[pollIndex] = undefined;
+                    }
+                    definedValueCopyToIndex++;
+                }
+            }
+            return pollIndex;
+            function nextPollIndex() {
+                pollIndex++;
+                if (pollIndex === queue.length) {
+                    if (definedValueCopyToIndex < pollIndex) {
+                        queue.length = definedValueCopyToIndex;
+                    }
+                    pollIndex = 0;
+                    definedValueCopyToIndex = 0;
+                }
+            }
+        }
+        function pollingIntervalQueue(pollingInterval) {
+            switch (pollingInterval) {
+                case PollingInterval.Low:
+                    return lowPollingIntervalQueue;
+                case PollingInterval.Medium:
+                    return mediumPollingIntervalQueue;
+                case PollingInterval.High:
+                    return highPollingIntervalQueue;
+            }
+        }
+        function addToPollingIntervalQueue(file, pollingInterval) {
+            pollingIntervalQueue(pollingInterval).push(file);
+            scheduleNextPollIfNotAlreadyScheduled(pollingInterval);
+        }
+        function addChangedFileToLowPollingIntervalQueue(file) {
+            changedFilesInLastPoll.push(file);
+            scheduleNextPollIfNotAlreadyScheduled(PollingInterval.Low);
+        }
+        function scheduleNextPollIfNotAlreadyScheduled(pollingInterval) {
+            if (!pollingIntervalQueue(pollingInterval).pollScheduled) {
+                scheduleNextPoll(pollingInterval);
+            }
+        }
+        function scheduleNextPoll(pollingInterval) {
+            pollingIntervalQueue(pollingInterval).pollScheduled = host.setTimeout(pollingInterval === PollingInterval.Low ? pollLowPollingIntervalQueue : pollPollingIntervalQueue, pollingInterval, pollingIntervalQueue(pollingInterval));
+        }
+        function getModifiedTime(fileName) {
+            return host.getModifiedTime(fileName) || ts.missingFileModifiedTime;
+        }
+    }
+    ts.createDynamicPriorityPollingWatchFile = createDynamicPriorityPollingWatchFile;
+    function createUseFsEventsOnParentDirectoryWatchFile(fsWatch, useCaseSensitiveFileNames) {
+        var fileWatcherCallbacks = ts.createMultiMap();
+        var dirWatchers = ts.createMap();
+        var toCanonicalName = ts.createGetCanonicalFileName(useCaseSensitiveFileNames);
+        return nonPollingWatchFile;
+        function nonPollingWatchFile(fileName, callback, _pollingInterval, fallbackOptions) {
+            var filePath = toCanonicalName(fileName);
+            fileWatcherCallbacks.add(filePath, callback);
+            var dirPath = ts.getDirectoryPath(filePath) || ".";
+            var watcher = dirWatchers.get(dirPath) ||
+                createDirectoryWatcher(ts.getDirectoryPath(fileName) || ".", dirPath, fallbackOptions);
+            watcher.referenceCount++;
+            return {
+                close: function () {
+                    if (watcher.referenceCount === 1) {
+                        watcher.close();
+                        dirWatchers.delete(dirPath);
+                    }
+                    else {
+                        watcher.referenceCount--;
+                    }
+                    fileWatcherCallbacks.remove(filePath, callback);
+                }
+            };
+        }
+        function createDirectoryWatcher(dirName, dirPath, fallbackOptions) {
+            var watcher = fsWatch(dirName, 1, function (_eventName, relativeFileName) {
+                if (!ts.isString(relativeFileName)) {
+                    return;
+                }
+                var fileName = ts.getNormalizedAbsolutePath(relativeFileName, dirName);
+                var callbacks = fileName && fileWatcherCallbacks.get(toCanonicalName(fileName));
+                if (callbacks) {
+                    for (var _i = 0, callbacks_1 = callbacks; _i < callbacks_1.length; _i++) {
+                        var fileCallback = callbacks_1[_i];
+                        fileCallback(fileName, FileWatcherEventKind.Changed);
+                    }
+                }
+            }, false, PollingInterval.Medium, fallbackOptions);
+            watcher.referenceCount = 0;
+            dirWatchers.set(dirPath, watcher);
+            return watcher;
+        }
+    }
+    function createSingleFileWatcherPerName(watchFile, useCaseSensitiveFileNames) {
+        var cache = ts.createMap();
+        var callbacksCache = ts.createMultiMap();
+        var toCanonicalFileName = ts.createGetCanonicalFileName(useCaseSensitiveFileNames);
+        return function (fileName, callback, pollingInterval, options) {
+            var path = toCanonicalFileName(fileName);
+            var existing = cache.get(path);
+            if (existing) {
+                existing.refCount++;
+            }
+            else {
+                cache.set(path, {
+                    watcher: watchFile(fileName, function (fileName, eventKind) { return ts.forEach(callbacksCache.get(path), function (cb) { return cb(fileName, eventKind); }); }, pollingInterval, options),
+                    refCount: 1
+                });
+            }
+            callbacksCache.add(path, callback);
+            return {
+                close: function () {
+                    var watcher = ts.Debug.checkDefined(cache.get(path));
+                    callbacksCache.remove(path, callback);
+                    watcher.refCount--;
+                    if (watcher.refCount)
+                        return;
+                    cache.delete(path);
+                    ts.closeFileWatcherOf(watcher);
+                }
+            };
+        };
+    }
+    ts.createSingleFileWatcherPerName = createSingleFileWatcherPerName;
+    function onWatchedFileStat(watchedFile, modifiedTime) {
+        var oldTime = watchedFile.mtime.getTime();
+        var newTime = modifiedTime.getTime();
+        if (oldTime !== newTime) {
+            watchedFile.mtime = modifiedTime;
+            watchedFile.callback(watchedFile.fileName, getFileWatcherEventKind(oldTime, newTime));
+            return true;
+        }
+        return false;
+    }
+    ts.onWatchedFileStat = onWatchedFileStat;
+    function getFileWatcherEventKind(oldTime, newTime) {
+        return oldTime === 0
+            ? FileWatcherEventKind.Created
+            : newTime === 0
+                ? FileWatcherEventKind.Deleted
+                : FileWatcherEventKind.Changed;
+    }
+    ts.getFileWatcherEventKind = getFileWatcherEventKind;
+    ts.ignoredPaths = ["/node_modules/.", "/.git", "/.#"];
+    ts.sysLog = ts.noop;
+    function setSysLog(logger) {
+        ts.sysLog = logger;
+    }
+    ts.setSysLog = setSysLog;
+    function createDirectoryWatcherSupportingRecursive(host) {
+        var cache = ts.createMap();
+        var callbackCache = ts.createMultiMap();
+        var cacheToUpdateChildWatches = ts.createMap();
+        var timerToUpdateChildWatches;
+        var filePathComparer = ts.getStringComparer(!host.useCaseSensitiveFileNames);
+        var toCanonicalFilePath = ts.createGetCanonicalFileName(host.useCaseSensitiveFileNames);
+        return function (dirName, callback, recursive, options) { return recursive ?
+            createDirectoryWatcher(dirName, options, callback) :
+            host.watchDirectory(dirName, callback, recursive, options); };
+        function createDirectoryWatcher(dirName, options, callback) {
+            var dirPath = toCanonicalFilePath(dirName);
+            var directoryWatcher = cache.get(dirPath);
+            if (directoryWatcher) {
+                directoryWatcher.refCount++;
+            }
+            else {
+                directoryWatcher = {
+                    watcher: host.watchDirectory(dirName, function (fileName) {
+                        if (isIgnoredPath(fileName))
+                            return;
+                        if (options === null || options === void 0 ? void 0 : options.synchronousWatchDirectory) {
+                            invokeCallbacks(dirPath, fileName);
+                            updateChildWatches(dirName, dirPath, options);
+                        }
+                        else {
+                            nonSyncUpdateChildWatches(dirName, dirPath, fileName, options);
+                        }
+                    }, false, options),
+                    refCount: 1,
+                    childWatches: ts.emptyArray
+                };
+                cache.set(dirPath, directoryWatcher);
+                updateChildWatches(dirName, dirPath, options);
+            }
+            var callbackToAdd = callback && { dirName: dirName, callback: callback };
+            if (callbackToAdd) {
+                callbackCache.add(dirPath, callbackToAdd);
+            }
+            return {
+                dirName: dirName,
+                close: function () {
+                    var directoryWatcher = ts.Debug.checkDefined(cache.get(dirPath));
+                    if (callbackToAdd)
+                        callbackCache.remove(dirPath, callbackToAdd);
+                    directoryWatcher.refCount--;
+                    if (directoryWatcher.refCount)
+                        return;
+                    cache.delete(dirPath);
+                    ts.closeFileWatcherOf(directoryWatcher);
+                    directoryWatcher.childWatches.forEach(ts.closeFileWatcher);
+                }
+            };
+        }
+        function invokeCallbacks(dirPath, fileNameOrInvokeMap) {
+            var fileName;
+            var invokeMap;
+            if (ts.isString(fileNameOrInvokeMap)) {
+                fileName = fileNameOrInvokeMap;
+            }
+            else {
+                invokeMap = fileNameOrInvokeMap;
+            }
+            callbackCache.forEach(function (callbacks, rootDirName) {
+                if (invokeMap && invokeMap.has(rootDirName))
+                    return;
+                if (rootDirName === dirPath || (ts.startsWith(dirPath, rootDirName) && dirPath[rootDirName.length] === ts.directorySeparator)) {
+                    if (invokeMap) {
+                        invokeMap.set(rootDirName, true);
+                    }
+                    else {
+                        callbacks.forEach(function (_a) {
+                            var callback = _a.callback;
+                            return callback(fileName);
+                        });
+                    }
+                }
+            });
+        }
+        function nonSyncUpdateChildWatches(dirName, dirPath, fileName, options) {
+            var parentWatcher = cache.get(dirPath);
+            if (parentWatcher && host.directoryExists(dirName)) {
+                scheduleUpdateChildWatches(dirName, dirPath, options);
+                return;
+            }
+            invokeCallbacks(dirPath, fileName);
+            removeChildWatches(parentWatcher);
+        }
+        function scheduleUpdateChildWatches(dirName, dirPath, options) {
+            if (!cacheToUpdateChildWatches.has(dirPath)) {
+                cacheToUpdateChildWatches.set(dirPath, { dirName: dirName, options: options });
+            }
+            if (timerToUpdateChildWatches) {
+                host.clearTimeout(timerToUpdateChildWatches);
+                timerToUpdateChildWatches = undefined;
+            }
+            timerToUpdateChildWatches = host.setTimeout(onTimerToUpdateChildWatches, 1000);
+        }
+        function onTimerToUpdateChildWatches() {
+            timerToUpdateChildWatches = undefined;
+            ts.sysLog("sysLog:: onTimerToUpdateChildWatches:: " + cacheToUpdateChildWatches.size);
+            var start = ts.timestamp();
+            var invokeMap = ts.createMap();
+            while (!timerToUpdateChildWatches && cacheToUpdateChildWatches.size) {
+                var _a = cacheToUpdateChildWatches.entries().next(), _b = _a.value, dirPath = _b[0], _c = _b[1], dirName = _c.dirName, options = _c.options, done = _a.done;
+                ts.Debug.assert(!done);
+                cacheToUpdateChildWatches.delete(dirPath);
+                invokeCallbacks(dirPath, invokeMap);
+                updateChildWatches(dirName, dirPath, options);
+            }
+            ts.sysLog("sysLog:: invokingWatchers:: " + (ts.timestamp() - start) + "ms:: " + cacheToUpdateChildWatches.size);
+            callbackCache.forEach(function (callbacks, rootDirName) {
+                if (invokeMap.has(rootDirName)) {
+                    callbacks.forEach(function (_a) {
+                        var callback = _a.callback, dirName = _a.dirName;
+                        return callback(dirName);
+                    });
+                }
+            });
+            var elapsed = ts.timestamp() - start;
+            ts.sysLog("sysLog:: Elapsed " + elapsed + "ms:: onTimerToUpdateChildWatches:: " + cacheToUpdateChildWatches.size + " " + timerToUpdateChildWatches);
+        }
+        function removeChildWatches(parentWatcher) {
+            if (!parentWatcher)
+                return;
+            var existingChildWatches = parentWatcher.childWatches;
+            parentWatcher.childWatches = ts.emptyArray;
+            for (var _i = 0, existingChildWatches_1 = existingChildWatches; _i < existingChildWatches_1.length; _i++) {
+                var childWatcher = existingChildWatches_1[_i];
+                childWatcher.close();
+                removeChildWatches(cache.get(toCanonicalFilePath(childWatcher.dirName)));
+            }
+        }
+        function updateChildWatches(dirName, dirPath, options) {
+            var parentWatcher = cache.get(dirPath);
+            if (parentWatcher) {
+                parentWatcher.childWatches = watchChildDirectories(dirName, parentWatcher.childWatches, options);
+            }
+        }
+        function watchChildDirectories(parentDir, existingChildWatches, options) {
+            var newChildWatches;
+            ts.enumerateInsertsAndDeletes(host.directoryExists(parentDir) ? ts.mapDefined(host.getAccessibleSortedChildDirectories(parentDir), function (child) {
+                var childFullName = ts.getNormalizedAbsolutePath(child, parentDir);
+                return !isIgnoredPath(childFullName) && filePathComparer(childFullName, ts.normalizePath(host.realpath(childFullName))) === 0 ? childFullName : undefined;
+            }) : ts.emptyArray, existingChildWatches, function (child, childWatcher) { return filePathComparer(child, childWatcher.dirName); }, createAndAddChildDirectoryWatcher, ts.closeFileWatcher, addChildDirectoryWatcher);
+            return newChildWatches || ts.emptyArray;
+            function createAndAddChildDirectoryWatcher(childName) {
+                var result = createDirectoryWatcher(childName, options);
+                addChildDirectoryWatcher(result);
+            }
+            function addChildDirectoryWatcher(childWatcher) {
+                (newChildWatches || (newChildWatches = [])).push(childWatcher);
+            }
+        }
+        function isIgnoredPath(path) {
+            return ts.some(ts.ignoredPaths, function (searchPath) { return isInPath(path, searchPath); });
+        }
+        function isInPath(path, searchPath) {
+            if (ts.stringContains(path, searchPath))
+                return true;
+            if (host.useCaseSensitiveFileNames)
+                return false;
+            return ts.stringContains(toCanonicalFilePath(path), searchPath);
+        }
+    }
+    ts.createDirectoryWatcherSupportingRecursive = createDirectoryWatcherSupportingRecursive;
+    function createFileWatcherCallback(callback) {
+        return function (_fileName, eventKind) { return callback(eventKind === FileWatcherEventKind.Changed ? "change" : "rename", ""); };
+    }
+    ts.createFileWatcherCallback = createFileWatcherCallback;
+    function createFsWatchCallbackForFileWatcherCallback(fileName, callback, fileExists) {
+        return function (eventName) {
+            if (eventName === "rename") {
+                callback(fileName, fileExists(fileName) ? FileWatcherEventKind.Created : FileWatcherEventKind.Deleted);
+            }
+            else {
+                callback(fileName, FileWatcherEventKind.Changed);
+            }
+        };
+    }
+    function createFsWatchCallbackForDirectoryWatcherCallback(directoryName, callback) {
+        return function (eventName, relativeFileName) {
+            if (eventName === "rename") {
+                callback(!relativeFileName ? directoryName : ts.normalizePath(ts.combinePaths(directoryName, relativeFileName)));
+            }
+        };
+    }
+    function createSystemWatchFunctions(_a) {
+        var pollingWatchFile = _a.pollingWatchFile, getModifiedTime = _a.getModifiedTime, setTimeout = _a.setTimeout, clearTimeout = _a.clearTimeout, fsWatch = _a.fsWatch, fileExists = _a.fileExists, useCaseSensitiveFileNames = _a.useCaseSensitiveFileNames, fsSupportsRecursiveFsWatch = _a.fsSupportsRecursiveFsWatch, directoryExists = _a.directoryExists, getAccessibleSortedChildDirectories = _a.getAccessibleSortedChildDirectories, realpath = _a.realpath, tscWatchFile = _a.tscWatchFile, useNonPollingWatchers = _a.useNonPollingWatchers, tscWatchDirectory = _a.tscWatchDirectory;
+        var dynamicPollingWatchFile;
+        var nonPollingWatchFile;
+        var hostRecursiveDirectoryWatcher;
+        return {
+            watchFile: watchFile,
+            watchDirectory: watchDirectory
+        };
+        function watchFile(fileName, callback, pollingInterval, options) {
+            options = updateOptionsForWatchFile(options, useNonPollingWatchers);
+            var watchFileKind = ts.Debug.checkDefined(options.watchFile);
+            switch (watchFileKind) {
+                case ts.WatchFileKind.FixedPollingInterval:
+                    return pollingWatchFile(fileName, callback, PollingInterval.Low, undefined);
+                case ts.WatchFileKind.PriorityPollingInterval:
+                    return pollingWatchFile(fileName, callback, pollingInterval, undefined);
+                case ts.WatchFileKind.DynamicPriorityPolling:
+                    return ensureDynamicPollingWatchFile()(fileName, callback, pollingInterval, undefined);
+                case ts.WatchFileKind.UseFsEvents:
+                    return fsWatch(fileName, 0, createFsWatchCallbackForFileWatcherCallback(fileName, callback, fileExists), false, pollingInterval, ts.getFallbackOptions(options));
+                case ts.WatchFileKind.UseFsEventsOnParentDirectory:
+                    if (!nonPollingWatchFile) {
+                        nonPollingWatchFile = createUseFsEventsOnParentDirectoryWatchFile(fsWatch, useCaseSensitiveFileNames);
+                    }
+                    return nonPollingWatchFile(fileName, callback, pollingInterval, ts.getFallbackOptions(options));
+                default:
+                    ts.Debug.assertNever(watchFileKind);
+            }
+        }
+        function ensureDynamicPollingWatchFile() {
+            return dynamicPollingWatchFile ||
+                (dynamicPollingWatchFile = createDynamicPriorityPollingWatchFile({ getModifiedTime: getModifiedTime, setTimeout: setTimeout }));
+        }
+        function updateOptionsForWatchFile(options, useNonPollingWatchers) {
+            if (options && options.watchFile !== undefined)
+                return options;
+            switch (tscWatchFile) {
+                case "PriorityPollingInterval":
+                    return { watchFile: ts.WatchFileKind.PriorityPollingInterval };
+                case "DynamicPriorityPolling":
+                    return { watchFile: ts.WatchFileKind.DynamicPriorityPolling };
+                case "UseFsEvents":
+                    return generateWatchFileOptions(ts.WatchFileKind.UseFsEvents, ts.PollingWatchKind.PriorityInterval, options);
+                case "UseFsEventsWithFallbackDynamicPolling":
+                    return generateWatchFileOptions(ts.WatchFileKind.UseFsEvents, ts.PollingWatchKind.DynamicPriority, options);
+                case "UseFsEventsOnParentDirectory":
+                    useNonPollingWatchers = true;
+                default:
+                    return useNonPollingWatchers ?
+                        generateWatchFileOptions(ts.WatchFileKind.UseFsEventsOnParentDirectory, ts.PollingWatchKind.PriorityInterval, options) :
+                        { watchFile: ts.WatchFileKind.FixedPollingInterval };
+            }
+        }
+        function generateWatchFileOptions(watchFile, fallbackPolling, options) {
+            var defaultFallbackPolling = options === null || options === void 0 ? void 0 : options.fallbackPolling;
+            return {
+                watchFile: watchFile,
+                fallbackPolling: defaultFallbackPolling === undefined ?
+                    fallbackPolling :
+                    defaultFallbackPolling
+            };
+        }
+        function watchDirectory(directoryName, callback, recursive, options) {
+            if (fsSupportsRecursiveFsWatch) {
+                return fsWatch(directoryName, 1, createFsWatchCallbackForDirectoryWatcherCallback(directoryName, callback), recursive, PollingInterval.Medium, ts.getFallbackOptions(options));
+            }
+            if (!hostRecursiveDirectoryWatcher) {
+                hostRecursiveDirectoryWatcher = createDirectoryWatcherSupportingRecursive({
+                    useCaseSensitiveFileNames: useCaseSensitiveFileNames,
+                    directoryExists: directoryExists,
+                    getAccessibleSortedChildDirectories: getAccessibleSortedChildDirectories,
+                    watchDirectory: nonRecursiveWatchDirectory,
+                    realpath: realpath,
+                    setTimeout: setTimeout,
+                    clearTimeout: clearTimeout
+                });
+            }
+            return hostRecursiveDirectoryWatcher(directoryName, callback, recursive, options);
+        }
+        function nonRecursiveWatchDirectory(directoryName, callback, recursive, options) {
+            ts.Debug.assert(!recursive);
+            options = updateOptionsForWatchDirectory(options);
+            var watchDirectoryKind = ts.Debug.checkDefined(options.watchDirectory);
+            switch (watchDirectoryKind) {
+                case ts.WatchDirectoryKind.FixedPollingInterval:
+                    return pollingWatchFile(directoryName, function () { return callback(directoryName); }, PollingInterval.Medium, undefined);
+                case ts.WatchDirectoryKind.DynamicPriorityPolling:
+                    return ensureDynamicPollingWatchFile()(directoryName, function () { return callback(directoryName); }, PollingInterval.Medium, undefined);
+                case ts.WatchDirectoryKind.UseFsEvents:
+                    return fsWatch(directoryName, 1, createFsWatchCallbackForDirectoryWatcherCallback(directoryName, callback), recursive, PollingInterval.Medium, ts.getFallbackOptions(options));
+                default:
+                    ts.Debug.assertNever(watchDirectoryKind);
+            }
+        }
+        function updateOptionsForWatchDirectory(options) {
+            if (options && options.watchDirectory !== undefined)
+                return options;
+            switch (tscWatchDirectory) {
+                case "RecursiveDirectoryUsingFsWatchFile":
+                    return { watchDirectory: ts.WatchDirectoryKind.FixedPollingInterval };
+                case "RecursiveDirectoryUsingDynamicPriorityPolling":
+                    return { watchDirectory: ts.WatchDirectoryKind.DynamicPriorityPolling };
+                default:
+                    var defaultFallbackPolling = options === null || options === void 0 ? void 0 : options.fallbackPolling;
+                    return {
+                        watchDirectory: ts.WatchDirectoryKind.UseFsEvents,
+                        fallbackPolling: defaultFallbackPolling !== undefined ?
+                            defaultFallbackPolling :
+                            undefined
+                    };
+            }
+        }
+    }
+    ts.createSystemWatchFunctions = createSystemWatchFunctions;
+    function patchWriteFileEnsuringDirectory(sys) {
+        var originalWriteFile = sys.writeFile;
+        sys.writeFile = function (path, data, writeBom) {
+            return ts.writeFileEnsuringDirectories(path, data, !!writeBom, function (path, data, writeByteOrderMark) { return originalWriteFile.call(sys, path, data, writeByteOrderMark); }, function (path) { return sys.createDirectory(path); }, function (path) { return sys.directoryExists(path); });
+        };
+    }
+    ts.patchWriteFileEnsuringDirectory = patchWriteFileEnsuringDirectory;
+    function getNodeMajorVersion() {
+        if (typeof process === "undefined") {
+            return undefined;
+        }
+        var version = process.version;
+        if (!version) {
+            return undefined;
+        }
+        var dot = version.indexOf(".");
+        if (dot === -1) {
+            return undefined;
+        }
+        return parseInt(version.substring(1, dot));
+    }
+    ts.getNodeMajorVersion = getNodeMajorVersion;
+    ts.sys = (function () {
+        var byteOrderMarkIndicator = "\uFEFF";
+        function getNodeSystem() {
+            var nativePattern = /^native |^\([^)]+\)$|^(internal[\\/]|[a-zA-Z0-9_\s]+(\.js)?$)/;
+            var _fs = require("fs");
+            var _path = require("path");
+            var _os = require("os");
+            var _crypto;
+            try {
+                _crypto = require("crypto");
+            }
+            catch (_a) {
+                _crypto = undefined;
+            }
+            var activeSession;
+            var profilePath = "./profile.cpuprofile";
+            var Buffer = require("buffer").Buffer;
+            var nodeVersion = getNodeMajorVersion();
+            var isNode4OrLater = nodeVersion >= 4;
+            var isLinuxOrMacOs = process.platform === "linux" || process.platform === "darwin";
+            var platform = _os.platform();
+            var useCaseSensitiveFileNames = isFileSystemCaseSensitive();
+            var fsSupportsRecursiveFsWatch = isNode4OrLater && (process.platform === "win32" || process.platform === "darwin");
+            var _b = createSystemWatchFunctions({
+                pollingWatchFile: createSingleFileWatcherPerName(fsWatchFileWorker, useCaseSensitiveFileNames),
+                getModifiedTime: getModifiedTime,
+                setTimeout: setTimeout,
+                clearTimeout: clearTimeout,
+                fsWatch: fsWatch,
+                useCaseSensitiveFileNames: useCaseSensitiveFileNames,
+                fileExists: fileExists,
+                fsSupportsRecursiveFsWatch: fsSupportsRecursiveFsWatch,
+                directoryExists: directoryExists,
+                getAccessibleSortedChildDirectories: function (path) { return getAccessibleFileSystemEntries(path).directories; },
+                realpath: realpath,
+                tscWatchFile: process.env.TSC_WATCHFILE,
+                useNonPollingWatchers: process.env.TSC_NONPOLLING_WATCHER,
+                tscWatchDirectory: process.env.TSC_WATCHDIRECTORY,
+            }), watchFile = _b.watchFile, watchDirectory = _b.watchDirectory;
+            var nodeSystem = {
+                args: process.argv.slice(2),
+                newLine: _os.EOL,
+                useCaseSensitiveFileNames: useCaseSensitiveFileNames,
+                write: function (s) {
+                    process.stdout.write(s);
+                },
+                writeOutputIsTTY: function () {
+                    return process.stdout.isTTY;
+                },
+                readFile: readFile,
+                writeFile: writeFile,
+                watchFile: watchFile,
+                watchDirectory: watchDirectory,
+                resolvePath: function (path) { return _path.resolve(path); },
+                fileExists: fileExists,
+                directoryExists: directoryExists,
+                createDirectory: function (directoryName) {
+                    if (!nodeSystem.directoryExists(directoryName)) {
+                        try {
+                            _fs.mkdirSync(directoryName);
+                        }
+                        catch (e) {
+                            if (e.code !== "EEXIST") {
+                                throw e;
+                            }
+                        }
+                    }
+                },
+                getExecutingFilePath: function () {
+                    return __filename;
+                },
+                getCurrentDirectory: function () {
+                    return process.cwd();
+                },
+                getDirectories: getDirectories,
+                getEnvironmentVariable: function (name) {
+                    return process.env[name] || "";
+                },
+                readDirectory: readDirectory,
+                getModifiedTime: getModifiedTime,
+                setModifiedTime: setModifiedTime,
+                deleteFile: deleteFile,
+                createHash: _crypto ? createSHA256Hash : generateDjb2Hash,
+                createSHA256Hash: _crypto ? createSHA256Hash : undefined,
+                getMemoryUsage: function () {
+                    if (global.gc) {
+                        global.gc();
+                    }
+                    return process.memoryUsage().heapUsed;
+                },
+                getFileSize: function (path) {
+                    try {
+                        var stat = _fs.statSync(path);
+                        if (stat.isFile()) {
+                            return stat.size;
+                        }
+                    }
+                    catch (_a) { }
+                    return 0;
+                },
+                exit: function (exitCode) {
+                    disableCPUProfiler(function () { return process.exit(exitCode); });
+                },
+                enableCPUProfiler: enableCPUProfiler,
+                disableCPUProfiler: disableCPUProfiler,
+                realpath: realpath,
+                debugMode: !!process.env.NODE_INSPECTOR_IPC || ts.some(process.execArgv, function (arg) { return /^--(inspect|debug)(-brk)?(=\d+)?$/i.test(arg); }),
+                tryEnableSourceMapsForHost: function () {
+                    try {
+                        require("source-map-support").install();
+                    }
+                    catch (_a) {
+                    }
+                },
+                setTimeout: setTimeout,
+                clearTimeout: clearTimeout,
+                clearScreen: function () {
+                    process.stdout.write("\x1Bc");
+                },
+                setBlocking: function () {
+                    if (process.stdout && process.stdout._handle && process.stdout._handle.setBlocking) {
+                        process.stdout._handle.setBlocking(true);
+                    }
+                },
+                bufferFrom: bufferFrom,
+                base64decode: function (input) { return bufferFrom(input, "base64").toString("utf8"); },
+                base64encode: function (input) { return bufferFrom(input).toString("base64"); },
+                require: function (baseDir, moduleName) {
+                    try {
+                        var modulePath = ts.resolveJSModule(moduleName, baseDir, nodeSystem);
+                        return { module: require(modulePath), modulePath: modulePath, error: undefined };
+                    }
+                    catch (error) {
+                        return { module: undefined, modulePath: undefined, error: error };
+                    }
+                }
+            };
+            return nodeSystem;
+            function enableCPUProfiler(path, cb) {
+                if (activeSession) {
+                    cb();
+                    return false;
+                }
+                var inspector = require("inspector");
+                if (!inspector || !inspector.Session) {
+                    cb();
+                    return false;
+                }
+                var session = new inspector.Session();
+                session.connect();
+                session.post("Profiler.enable", function () {
+                    session.post("Profiler.start", function () {
+                        activeSession = session;
+                        profilePath = path;
+                        cb();
+                    });
+                });
+                return true;
+            }
+            function cleanupPaths(profile) {
+                var externalFileCounter = 0;
+                var remappedPaths = ts.createMap();
+                var normalizedDir = ts.normalizeSlashes(__dirname);
+                var fileUrlRoot = "file://" + (ts.getRootLength(normalizedDir) === 1 ? "" : "/") + normalizedDir;
+                for (var _i = 0, _a = profile.nodes; _i < _a.length; _i++) {
+                    var node = _a[_i];
+                    if (node.callFrame.url) {
+                        var url = ts.normalizeSlashes(node.callFrame.url);
+                        if (ts.containsPath(fileUrlRoot, url, useCaseSensitiveFileNames)) {
+                            node.callFrame.url = ts.getRelativePathToDirectoryOrUrl(fileUrlRoot, url, fileUrlRoot, ts.createGetCanonicalFileName(useCaseSensitiveFileNames), true);
+                        }
+                        else if (!nativePattern.test(url)) {
+                            node.callFrame.url = (remappedPaths.has(url) ? remappedPaths : remappedPaths.set(url, "external" + externalFileCounter + ".js")).get(url);
+                            externalFileCounter++;
+                        }
+                    }
+                }
+                return profile;
+            }
+            function disableCPUProfiler(cb) {
+                if (activeSession && activeSession !== "stopping") {
+                    var s_1 = activeSession;
+                    activeSession.post("Profiler.stop", function (err, _a) {
+                        var profile = _a.profile;
+                        if (!err) {
+                            try {
+                                if (_fs.statSync(profilePath).isDirectory()) {
+                                    profilePath = _path.join(profilePath, (new Date()).toISOString().replace(/:/g, "-") + "+P" + process.pid + ".cpuprofile");
+                                }
+                            }
+                            catch (_b) {
+                            }
+                            try {
+                                _fs.mkdirSync(_path.dirname(profilePath), { recursive: true });
+                            }
+                            catch (_c) {
+                            }
+                            _fs.writeFileSync(profilePath, JSON.stringify(cleanupPaths(profile)));
+                        }
+                        activeSession = undefined;
+                        s_1.disconnect();
+                        cb();
+                    });
+                    activeSession = "stopping";
+                    return true;
+                }
+                else {
+                    cb();
+                    return false;
+                }
+            }
+            function bufferFrom(input, encoding) {
+                return Buffer.from && Buffer.from !== Int8Array.from
+                    ? Buffer.from(input, encoding)
+                    : new Buffer(input, encoding);
+            }
+            function isFileSystemCaseSensitive() {
+                if (platform === "win32" || platform === "win64") {
+                    return false;
+                }
+                return !fileExists(swapCase(__filename));
+            }
+            function swapCase(s) {
+                return s.replace(/\w/g, function (ch) {
+                    var up = ch.toUpperCase();
+                    return ch === up ? ch.toLowerCase() : up;
+                });
+            }
+            function fsWatchFileWorker(fileName, callback, pollingInterval) {
+                _fs.watchFile(fileName, { persistent: true, interval: pollingInterval }, fileChanged);
+                var eventKind;
+                return {
+                    close: function () { return _fs.unwatchFile(fileName, fileChanged); }
+                };
+                function fileChanged(curr, prev) {
+                    var isPreviouslyDeleted = +prev.mtime === 0 || eventKind === FileWatcherEventKind.Deleted;
+                    if (+curr.mtime === 0) {
+                        if (isPreviouslyDeleted) {
+                            return;
+                        }
+                        eventKind = FileWatcherEventKind.Deleted;
+                    }
+                    else if (isPreviouslyDeleted) {
+                        eventKind = FileWatcherEventKind.Created;
+                    }
+                    else if (+curr.mtime === +prev.mtime) {
+                        return;
+                    }
+                    else {
+                        eventKind = FileWatcherEventKind.Changed;
+                    }
+                    callback(fileName, eventKind);
+                }
+            }
+            function fsWatch(fileOrDirectory, entryKind, callback, recursive, fallbackPollingInterval, fallbackOptions) {
+                var options;
+                var lastDirectoryPartWithDirectorySeparator;
+                var lastDirectoryPart;
+                if (isLinuxOrMacOs) {
+                    lastDirectoryPartWithDirectorySeparator = fileOrDirectory.substr(fileOrDirectory.lastIndexOf(ts.directorySeparator));
+                    lastDirectoryPart = lastDirectoryPartWithDirectorySeparator.slice(ts.directorySeparator.length);
+                }
+                var watcher = !fileSystemEntryExists(fileOrDirectory, entryKind) ?
+                    watchMissingFileSystemEntry() :
+                    watchPresentFileSystemEntry();
+                return {
+                    close: function () {
+                        watcher.close();
+                        watcher = undefined;
+                    }
+                };
+                function invokeCallbackAndUpdateWatcher(createWatcher) {
+                    ts.sysLog("sysLog:: " + fileOrDirectory + ":: Changing watcher to " + (createWatcher === watchPresentFileSystemEntry ? "Present" : "Missing") + "FileSystemEntryWatcher");
+                    callback("rename", "");
+                    if (watcher) {
+                        watcher.close();
+                        watcher = createWatcher();
+                    }
+                }
+                function watchPresentFileSystemEntry() {
+                    if (options === undefined) {
+                        if (fsSupportsRecursiveFsWatch) {
+                            options = { persistent: true, recursive: !!recursive };
+                        }
+                        else {
+                            options = { persistent: true };
+                        }
+                    }
+                    try {
+                        var presentWatcher = _fs.watch(fileOrDirectory, options, isLinuxOrMacOs ?
+                            callbackChangingToMissingFileSystemEntry :
+                            callback);
+                        presentWatcher.on("error", function () { return invokeCallbackAndUpdateWatcher(watchMissingFileSystemEntry); });
+                        return presentWatcher;
+                    }
+                    catch (e) {
+                        return watchPresentFileSystemEntryWithFsWatchFile();
+                    }
+                }
+                function callbackChangingToMissingFileSystemEntry(event, relativeName) {
+                    return event === "rename" &&
+                        (!relativeName ||
+                            relativeName === lastDirectoryPart ||
+                            relativeName.lastIndexOf(lastDirectoryPartWithDirectorySeparator) === relativeName.length - lastDirectoryPartWithDirectorySeparator.length) &&
+                        !fileSystemEntryExists(fileOrDirectory, entryKind) ?
+                        invokeCallbackAndUpdateWatcher(watchMissingFileSystemEntry) :
+                        callback(event, relativeName);
+                }
+                function watchPresentFileSystemEntryWithFsWatchFile() {
+                    ts.sysLog("sysLog:: " + fileOrDirectory + ":: Changing to fsWatchFile");
+                    return watchFile(fileOrDirectory, createFileWatcherCallback(callback), fallbackPollingInterval, fallbackOptions);
+                }
+                function watchMissingFileSystemEntry() {
+                    return watchFile(fileOrDirectory, function (_fileName, eventKind) {
+                        if (eventKind === FileWatcherEventKind.Created && fileSystemEntryExists(fileOrDirectory, entryKind)) {
+                            invokeCallbackAndUpdateWatcher(watchPresentFileSystemEntry);
+                        }
+                    }, fallbackPollingInterval, fallbackOptions);
+                }
+            }
+            function readFileWorker(fileName, _encoding) {
+                var buffer;
+                try {
+                    buffer = _fs.readFileSync(fileName);
+                }
+                catch (e) {
+                    return undefined;
+                }
+                var len = buffer.length;
+                if (len >= 2 && buffer[0] === 0xFE && buffer[1] === 0xFF) {
+                    len &= ~1;
+                    for (var i = 0; i < len; i += 2) {
+                        var temp = buffer[i];
+                        buffer[i] = buffer[i + 1];
+                        buffer[i + 1] = temp;
+                    }
+                    return buffer.toString("utf16le", 2);
+                }
+                if (len >= 2 && buffer[0] === 0xFF && buffer[1] === 0xFE) {
+                    return buffer.toString("utf16le", 2);
+                }
+                if (len >= 3 && buffer[0] === 0xEF && buffer[1] === 0xBB && buffer[2] === 0xBF) {
+                    return buffer.toString("utf8", 3);
+                }
+                return buffer.toString("utf8");
+            }
+            function readFile(fileName, _encoding) {
+                ts.perfLogger.logStartReadFile(fileName);
+                var file = readFileWorker(fileName, _encoding);
+                ts.perfLogger.logStopReadFile();
+                return file;
+            }
+            function writeFile(fileName, data, writeByteOrderMark) {
+                ts.perfLogger.logEvent("WriteFile: " + fileName);
+                if (writeByteOrderMark) {
+                    data = byteOrderMarkIndicator + data;
+                }
+                var fd;
+                try {
+                    fd = _fs.openSync(fileName, "w");
+                    _fs.writeSync(fd, data, undefined, "utf8");
+                }
+                finally {
+                    if (fd !== undefined) {
+                        _fs.closeSync(fd);
+                    }
+                }
+            }
+            function getAccessibleFileSystemEntries(path) {
+                ts.perfLogger.logEvent("ReadDir: " + (path || "."));
+                try {
+                    var entries = _fs.readdirSync(path || ".", { withFileTypes: true });
+                    var files = [];
+                    var directories = [];
+                    for (var _i = 0, entries_2 = entries; _i < entries_2.length; _i++) {
+                        var dirent = entries_2[_i];
+                        var entry = typeof dirent === "string" ? dirent : dirent.name;
+                        if (entry === "." || entry === "..") {
+                            continue;
+                        }
+                        var stat = void 0;
+                        if (typeof dirent === "string" || dirent.isSymbolicLink()) {
+                            var name = ts.combinePaths(path, entry);
+                            try {
+                                stat = _fs.statSync(name);
+                            }
+                            catch (e) {
+                                continue;
+                            }
+                        }
+                        else {
+                            stat = dirent;
+                        }
+                        if (stat.isFile()) {
+                            files.push(entry);
+                        }
+                        else if (stat.isDirectory()) {
+                            directories.push(entry);
+                        }
+                    }
+                    files.sort();
+                    directories.sort();
+                    return { files: files, directories: directories };
+                }
+                catch (e) {
+                    return ts.emptyFileSystemEntries;
+                }
+            }
+            function readDirectory(path, extensions, excludes, includes, depth) {
+                return ts.matchFiles(path, extensions, excludes, includes, useCaseSensitiveFileNames, process.cwd(), depth, getAccessibleFileSystemEntries, realpath);
+            }
+            function fileSystemEntryExists(path, entryKind) {
+                try {
+                    var stat = _fs.statSync(path);
+                    switch (entryKind) {
+                        case 0: return stat.isFile();
+                        case 1: return stat.isDirectory();
+                        default: return false;
+                    }
+                }
+                catch (e) {
+                    return false;
+                }
+            }
+            function fileExists(path) {
+                return fileSystemEntryExists(path, 0);
+            }
+            function directoryExists(path) {
+                return fileSystemEntryExists(path, 1);
+            }
+            function getDirectories(path) {
+                return getAccessibleFileSystemEntries(path).directories.slice();
+            }
+            function realpath(path) {
+                try {
+                    return _fs.realpathSync(path);
+                }
+                catch (_a) {
+                    return path;
+                }
+            }
+            function getModifiedTime(path) {
+                try {
+                    return _fs.statSync(path).mtime;
+                }
+                catch (e) {
+                    return undefined;
+                }
+            }
+            function setModifiedTime(path, time) {
+                try {
+                    _fs.utimesSync(path, time, time);
+                }
+                catch (e) {
+                    return;
+                }
+            }
+            function deleteFile(path) {
+                try {
+                    return _fs.unlinkSync(path);
+                }
+                catch (e) {
+                    return;
+                }
+            }
+            function createSHA256Hash(data) {
+                var hash = _crypto.createHash("sha256");
+                hash.update(data);
+                return hash.digest("hex");
+            }
+        }
+        var sys;
+        if (typeof process !== "undefined" && process.nextTick && !process.browser && typeof require !== "undefined") {
+            sys = getNodeSystem();
+        }
+        if (sys) {
+            patchWriteFileEnsuringDirectory(sys);
+        }
+        return sys;
+    })();
+    if (ts.sys && ts.sys.getEnvironmentVariable) {
+        setCustomPollingValues(ts.sys);
+        ts.Debug.setAssertionLevel(/^development$/i.test(ts.sys.getEnvironmentVariable("NODE_ENV"))
+            ? 1
+            : 0);
+    }
+    if (ts.sys && ts.sys.debugMode) {
+        ts.Debug.isDebugging = true;
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    ts.directorySeparator = "/";
+    var altDirectorySeparator = "\\";
+    var urlSchemeSeparator = "://";
+    var backslashRegExp = /\\/g;
+    function isAnyDirectorySeparator(charCode) {
+        return charCode === 47 || charCode === 92;
+    }
+    ts.isAnyDirectorySeparator = isAnyDirectorySeparator;
+    function isUrl(path) {
+        return getEncodedRootLength(path) < 0;
+    }
+    ts.isUrl = isUrl;
+    function isRootedDiskPath(path) {
+        return getEncodedRootLength(path) > 0;
+    }
+    ts.isRootedDiskPath = isRootedDiskPath;
+    function isDiskPathRoot(path) {
+        var rootLength = getEncodedRootLength(path);
+        return rootLength > 0 && rootLength === path.length;
+    }
+    ts.isDiskPathRoot = isDiskPathRoot;
+    function pathIsAbsolute(path) {
+        return getEncodedRootLength(path) !== 0;
+    }
+    ts.pathIsAbsolute = pathIsAbsolute;
+    function pathIsRelative(path) {
+        return /^\.\.?($|[\\/])/.test(path);
+    }
+    ts.pathIsRelative = pathIsRelative;
+    function hasExtension(fileName) {
+        return ts.stringContains(getBaseFileName(fileName), ".");
+    }
+    ts.hasExtension = hasExtension;
+    function fileExtensionIs(path, extension) {
+        return path.length > extension.length && ts.endsWith(path, extension);
+    }
+    ts.fileExtensionIs = fileExtensionIs;
+    function fileExtensionIsOneOf(path, extensions) {
+        for (var _i = 0, extensions_1 = extensions; _i < extensions_1.length; _i++) {
+            var extension = extensions_1[_i];
+            if (fileExtensionIs(path, extension)) {
+                return true;
+            }
+        }
+        return false;
+    }
+    ts.fileExtensionIsOneOf = fileExtensionIsOneOf;
+    function hasTrailingDirectorySeparator(path) {
+        return path.length > 0 && isAnyDirectorySeparator(path.charCodeAt(path.length - 1));
+    }
+    ts.hasTrailingDirectorySeparator = hasTrailingDirectorySeparator;
+    function isVolumeCharacter(charCode) {
+        return (charCode >= 97 && charCode <= 122) ||
+            (charCode >= 65 && charCode <= 90);
+    }
+    function getFileUrlVolumeSeparatorEnd(url, start) {
+        var ch0 = url.charCodeAt(start);
+        if (ch0 === 58)
+            return start + 1;
+        if (ch0 === 37 && url.charCodeAt(start + 1) === 51) {
+            var ch2 = url.charCodeAt(start + 2);
+            if (ch2 === 97 || ch2 === 65)
+                return start + 3;
+        }
+        return -1;
+    }
+    function getEncodedRootLength(path) {
+        if (!path)
+            return 0;
+        var ch0 = path.charCodeAt(0);
+        if (ch0 === 47 || ch0 === 92) {
+            if (path.charCodeAt(1) !== ch0)
+                return 1;
+            var p1 = path.indexOf(ch0 === 47 ? ts.directorySeparator : altDirectorySeparator, 2);
+            if (p1 < 0)
+                return path.length;
+            return p1 + 1;
+        }
+        if (isVolumeCharacter(ch0) && path.charCodeAt(1) === 58) {
+            var ch2 = path.charCodeAt(2);
+            if (ch2 === 47 || ch2 === 92)
+                return 3;
+            if (path.length === 2)
+                return 2;
+        }
+        var schemeEnd = path.indexOf(urlSchemeSeparator);
+        if (schemeEnd !== -1) {
+            var authorityStart = schemeEnd + urlSchemeSeparator.length;
+            var authorityEnd = path.indexOf(ts.directorySeparator, authorityStart);
+            if (authorityEnd !== -1) {
+                var scheme = path.slice(0, schemeEnd);
+                var authority = path.slice(authorityStart, authorityEnd);
+                if (scheme === "file" && (authority === "" || authority === "localhost") &&
+                    isVolumeCharacter(path.charCodeAt(authorityEnd + 1))) {
+                    var volumeSeparatorEnd = getFileUrlVolumeSeparatorEnd(path, authorityEnd + 2);
+                    if (volumeSeparatorEnd !== -1) {
+                        if (path.charCodeAt(volumeSeparatorEnd) === 47) {
+                            return ~(volumeSeparatorEnd + 1);
+                        }
+                        if (volumeSeparatorEnd === path.length) {
+                            return ~volumeSeparatorEnd;
+                        }
+                    }
+                }
+                return ~(authorityEnd + 1);
+            }
+            return ~path.length;
+        }
+        return 0;
+    }
+    function getRootLength(path) {
+        var rootLength = getEncodedRootLength(path);
+        return rootLength < 0 ? ~rootLength : rootLength;
+    }
+    ts.getRootLength = getRootLength;
+    function getDirectoryPath(path) {
+        path = normalizeSlashes(path);
+        var rootLength = getRootLength(path);
+        if (rootLength === path.length)
+            return path;
+        path = removeTrailingDirectorySeparator(path);
+        return path.slice(0, Math.max(rootLength, path.lastIndexOf(ts.directorySeparator)));
+    }
+    ts.getDirectoryPath = getDirectoryPath;
+    function getBaseFileName(path, extensions, ignoreCase) {
+        path = normalizeSlashes(path);
+        var rootLength = getRootLength(path);
+        if (rootLength === path.length)
+            return "";
+        path = removeTrailingDirectorySeparator(path);
+        var name = path.slice(Math.max(getRootLength(path), path.lastIndexOf(ts.directorySeparator) + 1));
+        var extension = extensions !== undefined && ignoreCase !== undefined ? getAnyExtensionFromPath(name, extensions, ignoreCase) : undefined;
+        return extension ? name.slice(0, name.length - extension.length) : name;
+    }
+    ts.getBaseFileName = getBaseFileName;
+    function tryGetExtensionFromPath(path, extension, stringEqualityComparer) {
+        if (!ts.startsWith(extension, "."))
+            extension = "." + extension;
+        if (path.length >= extension.length && path.charCodeAt(path.length - extension.length) === 46) {
+            var pathExtension = path.slice(path.length - extension.length);
+            if (stringEqualityComparer(pathExtension, extension)) {
+                return pathExtension;
+            }
+        }
+    }
+    function getAnyExtensionFromPathWorker(path, extensions, stringEqualityComparer) {
+        if (typeof extensions === "string") {
+            return tryGetExtensionFromPath(path, extensions, stringEqualityComparer) || "";
+        }
+        for (var _i = 0, extensions_2 = extensions; _i < extensions_2.length; _i++) {
+            var extension = extensions_2[_i];
+            var result = tryGetExtensionFromPath(path, extension, stringEqualityComparer);
+            if (result)
+                return result;
+        }
+        return "";
+    }
+    function getAnyExtensionFromPath(path, extensions, ignoreCase) {
+        if (extensions) {
+            return getAnyExtensionFromPathWorker(removeTrailingDirectorySeparator(path), extensions, ignoreCase ? ts.equateStringsCaseInsensitive : ts.equateStringsCaseSensitive);
+        }
+        var baseFileName = getBaseFileName(path);
+        var extensionIndex = baseFileName.lastIndexOf(".");
+        if (extensionIndex >= 0) {
+            return baseFileName.substring(extensionIndex);
+        }
+        return "";
+    }
+    ts.getAnyExtensionFromPath = getAnyExtensionFromPath;
+    function pathComponents(path, rootLength) {
+        var root = path.substring(0, rootLength);
+        var rest = path.substring(rootLength).split(ts.directorySeparator);
+        if (rest.length && !ts.lastOrUndefined(rest))
+            rest.pop();
+        return __spreadArrays([root], rest);
+    }
+    function getPathComponents(path, currentDirectory) {
+        if (currentDirectory === void 0) { currentDirectory = ""; }
+        path = combinePaths(currentDirectory, path);
+        return pathComponents(path, getRootLength(path));
+    }
+    ts.getPathComponents = getPathComponents;
+    function getPathFromPathComponents(pathComponents) {
+        if (pathComponents.length === 0)
+            return "";
+        var root = pathComponents[0] && ensureTrailingDirectorySeparator(pathComponents[0]);
+        return root + pathComponents.slice(1).join(ts.directorySeparator);
+    }
+    ts.getPathFromPathComponents = getPathFromPathComponents;
+    function normalizeSlashes(path) {
+        return path.replace(backslashRegExp, ts.directorySeparator);
+    }
+    ts.normalizeSlashes = normalizeSlashes;
+    function reducePathComponents(components) {
+        if (!ts.some(components))
+            return [];
+        var reduced = [components[0]];
+        for (var i = 1; i < components.length; i++) {
+            var component = components[i];
+            if (!component)
+                continue;
+            if (component === ".")
+                continue;
+            if (component === "..") {
+                if (reduced.length > 1) {
+                    if (reduced[reduced.length - 1] !== "..") {
+                        reduced.pop();
+                        continue;
+                    }
+                }
+                else if (reduced[0])
+                    continue;
+            }
+            reduced.push(component);
+        }
+        return reduced;
+    }
+    ts.reducePathComponents = reducePathComponents;
+    function combinePaths(path) {
+        var paths = [];
+        for (var _i = 1; _i < arguments.length; _i++) {
+            paths[_i - 1] = arguments[_i];
+        }
+        if (path)
+            path = normalizeSlashes(path);
+        for (var _a = 0, paths_1 = paths; _a < paths_1.length; _a++) {
+            var relativePath = paths_1[_a];
+            if (!relativePath)
+                continue;
+            relativePath = normalizeSlashes(relativePath);
+            if (!path || getRootLength(relativePath) !== 0) {
+                path = relativePath;
+            }
+            else {
+                path = ensureTrailingDirectorySeparator(path) + relativePath;
+            }
+        }
+        return path;
+    }
+    ts.combinePaths = combinePaths;
+    function resolvePath(path) {
+        var paths = [];
+        for (var _i = 1; _i < arguments.length; _i++) {
+            paths[_i - 1] = arguments[_i];
+        }
+        return normalizePath(ts.some(paths) ? combinePaths.apply(void 0, __spreadArrays([path], paths)) : normalizeSlashes(path));
+    }
+    ts.resolvePath = resolvePath;
+    function getNormalizedPathComponents(path, currentDirectory) {
+        return reducePathComponents(getPathComponents(path, currentDirectory));
+    }
+    ts.getNormalizedPathComponents = getNormalizedPathComponents;
+    function getNormalizedAbsolutePath(fileName, currentDirectory) {
+        return getPathFromPathComponents(getNormalizedPathComponents(fileName, currentDirectory));
+    }
+    ts.getNormalizedAbsolutePath = getNormalizedAbsolutePath;
+    function normalizePath(path) {
+        path = normalizeSlashes(path);
+        var normalized = getPathFromPathComponents(reducePathComponents(getPathComponents(path)));
+        return normalized && hasTrailingDirectorySeparator(path) ? ensureTrailingDirectorySeparator(normalized) : normalized;
+    }
+    ts.normalizePath = normalizePath;
+    function getPathWithoutRoot(pathComponents) {
+        if (pathComponents.length === 0)
+            return "";
+        return pathComponents.slice(1).join(ts.directorySeparator);
+    }
+    function getNormalizedAbsolutePathWithoutRoot(fileName, currentDirectory) {
+        return getPathWithoutRoot(getNormalizedPathComponents(fileName, currentDirectory));
+    }
+    ts.getNormalizedAbsolutePathWithoutRoot = getNormalizedAbsolutePathWithoutRoot;
+    function toPath(fileName, basePath, getCanonicalFileName) {
+        var nonCanonicalizedPath = isRootedDiskPath(fileName)
+            ? normalizePath(fileName)
+            : getNormalizedAbsolutePath(fileName, basePath);
+        return getCanonicalFileName(nonCanonicalizedPath);
+    }
+    ts.toPath = toPath;
+    function normalizePathAndParts(path) {
+        path = normalizeSlashes(path);
+        var _a = reducePathComponents(getPathComponents(path)), root = _a[0], parts = _a.slice(1);
+        if (parts.length) {
+            var joinedParts = root + parts.join(ts.directorySeparator);
+            return { path: hasTrailingDirectorySeparator(path) ? ensureTrailingDirectorySeparator(joinedParts) : joinedParts, parts: parts };
+        }
+        else {
+            return { path: root, parts: parts };
+        }
+    }
+    ts.normalizePathAndParts = normalizePathAndParts;
+    function removeTrailingDirectorySeparator(path) {
+        if (hasTrailingDirectorySeparator(path)) {
+            return path.substr(0, path.length - 1);
+        }
+        return path;
+    }
+    ts.removeTrailingDirectorySeparator = removeTrailingDirectorySeparator;
+    function ensureTrailingDirectorySeparator(path) {
+        if (!hasTrailingDirectorySeparator(path)) {
+            return path + ts.directorySeparator;
+        }
+        return path;
+    }
+    ts.ensureTrailingDirectorySeparator = ensureTrailingDirectorySeparator;
+    function ensurePathIsNonModuleName(path) {
+        return !pathIsAbsolute(path) && !pathIsRelative(path) ? "./" + path : path;
+    }
+    ts.ensurePathIsNonModuleName = ensurePathIsNonModuleName;
+    function changeAnyExtension(path, ext, extensions, ignoreCase) {
+        var pathext = extensions !== undefined && ignoreCase !== undefined ? getAnyExtensionFromPath(path, extensions, ignoreCase) : getAnyExtensionFromPath(path);
+        return pathext ? path.slice(0, path.length - pathext.length) + (ts.startsWith(ext, ".") ? ext : "." + ext) : path;
+    }
+    ts.changeAnyExtension = changeAnyExtension;
+    var relativePathSegmentRegExp = /(^|\/)\.{0,2}($|\/)/;
+    function comparePathsWorker(a, b, componentComparer) {
+        if (a === b)
+            return 0;
+        if (a === undefined)
+            return -1;
+        if (b === undefined)
+            return 1;
+        var aRoot = a.substring(0, getRootLength(a));
+        var bRoot = b.substring(0, getRootLength(b));
+        var result = ts.compareStringsCaseInsensitive(aRoot, bRoot);
+        if (result !== 0) {
+            return result;
+        }
+        var aRest = a.substring(aRoot.length);
+        var bRest = b.substring(bRoot.length);
+        if (!relativePathSegmentRegExp.test(aRest) && !relativePathSegmentRegExp.test(bRest)) {
+            return componentComparer(aRest, bRest);
+        }
+        var aComponents = reducePathComponents(getPathComponents(a));
+        var bComponents = reducePathComponents(getPathComponents(b));
+        var sharedLength = Math.min(aComponents.length, bComponents.length);
+        for (var i = 1; i < sharedLength; i++) {
+            var result_1 = componentComparer(aComponents[i], bComponents[i]);
+            if (result_1 !== 0) {
+                return result_1;
+            }
+        }
+        return ts.compareValues(aComponents.length, bComponents.length);
+    }
+    function comparePathsCaseSensitive(a, b) {
+        return comparePathsWorker(a, b, ts.compareStringsCaseSensitive);
+    }
+    ts.comparePathsCaseSensitive = comparePathsCaseSensitive;
+    function comparePathsCaseInsensitive(a, b) {
+        return comparePathsWorker(a, b, ts.compareStringsCaseInsensitive);
+    }
+    ts.comparePathsCaseInsensitive = comparePathsCaseInsensitive;
+    function comparePaths(a, b, currentDirectory, ignoreCase) {
+        if (typeof currentDirectory === "string") {
+            a = combinePaths(currentDirectory, a);
+            b = combinePaths(currentDirectory, b);
+        }
+        else if (typeof currentDirectory === "boolean") {
+            ignoreCase = currentDirectory;
+        }
+        return comparePathsWorker(a, b, ts.getStringComparer(ignoreCase));
+    }
+    ts.comparePaths = comparePaths;
+    function containsPath(parent, child, currentDirectory, ignoreCase) {
+        if (typeof currentDirectory === "string") {
+            parent = combinePaths(currentDirectory, parent);
+            child = combinePaths(currentDirectory, child);
+        }
+        else if (typeof currentDirectory === "boolean") {
+            ignoreCase = currentDirectory;
+        }
+        if (parent === undefined || child === undefined)
+            return false;
+        if (parent === child)
+            return true;
+        var parentComponents = reducePathComponents(getPathComponents(parent));
+        var childComponents = reducePathComponents(getPathComponents(child));
+        if (childComponents.length < parentComponents.length) {
+            return false;
+        }
+        var componentEqualityComparer = ignoreCase ? ts.equateStringsCaseInsensitive : ts.equateStringsCaseSensitive;
+        for (var i = 0; i < parentComponents.length; i++) {
+            var equalityComparer = i === 0 ? ts.equateStringsCaseInsensitive : componentEqualityComparer;
+            if (!equalityComparer(parentComponents[i], childComponents[i])) {
+                return false;
+            }
+        }
+        return true;
+    }
+    ts.containsPath = containsPath;
+    function startsWithDirectory(fileName, directoryName, getCanonicalFileName) {
+        var canonicalFileName = getCanonicalFileName(fileName);
+        var canonicalDirectoryName = getCanonicalFileName(directoryName);
+        return ts.startsWith(canonicalFileName, canonicalDirectoryName + "/") || ts.startsWith(canonicalFileName, canonicalDirectoryName + "\\");
+    }
+    ts.startsWithDirectory = startsWithDirectory;
+    function getPathComponentsRelativeTo(from, to, stringEqualityComparer, getCanonicalFileName) {
+        var fromComponents = reducePathComponents(getPathComponents(from));
+        var toComponents = reducePathComponents(getPathComponents(to));
+        var start;
+        for (start = 0; start < fromComponents.length && start < toComponents.length; start++) {
+            var fromComponent = getCanonicalFileName(fromComponents[start]);
+            var toComponent = getCanonicalFileName(toComponents[start]);
+            var comparer = start === 0 ? ts.equateStringsCaseInsensitive : stringEqualityComparer;
+            if (!comparer(fromComponent, toComponent))
+                break;
+        }
+        if (start === 0) {
+            return toComponents;
+        }
+        var components = toComponents.slice(start);
+        var relative = [];
+        for (; start < fromComponents.length; start++) {
+            relative.push("..");
+        }
+        return __spreadArrays([""], relative, components);
+    }
+    ts.getPathComponentsRelativeTo = getPathComponentsRelativeTo;
+    function getRelativePathFromDirectory(fromDirectory, to, getCanonicalFileNameOrIgnoreCase) {
+        ts.Debug.assert((getRootLength(fromDirectory) > 0) === (getRootLength(to) > 0), "Paths must either both be absolute or both be relative");
+        var getCanonicalFileName = typeof getCanonicalFileNameOrIgnoreCase === "function" ? getCanonicalFileNameOrIgnoreCase : ts.identity;
+        var ignoreCase = typeof getCanonicalFileNameOrIgnoreCase === "boolean" ? getCanonicalFileNameOrIgnoreCase : false;
+        var pathComponents = getPathComponentsRelativeTo(fromDirectory, to, ignoreCase ? ts.equateStringsCaseInsensitive : ts.equateStringsCaseSensitive, getCanonicalFileName);
+        return getPathFromPathComponents(pathComponents);
+    }
+    ts.getRelativePathFromDirectory = getRelativePathFromDirectory;
+    function convertToRelativePath(absoluteOrRelativePath, basePath, getCanonicalFileName) {
+        return !isRootedDiskPath(absoluteOrRelativePath)
+            ? absoluteOrRelativePath
+            : getRelativePathToDirectoryOrUrl(basePath, absoluteOrRelativePath, basePath, getCanonicalFileName, false);
+    }
+    ts.convertToRelativePath = convertToRelativePath;
+    function getRelativePathFromFile(from, to, getCanonicalFileName) {
+        return ensurePathIsNonModuleName(getRelativePathFromDirectory(getDirectoryPath(from), to, getCanonicalFileName));
+    }
+    ts.getRelativePathFromFile = getRelativePathFromFile;
+    function getRelativePathToDirectoryOrUrl(directoryPathOrUrl, relativeOrAbsolutePath, currentDirectory, getCanonicalFileName, isAbsolutePathAnUrl) {
+        var pathComponents = getPathComponentsRelativeTo(resolvePath(currentDirectory, directoryPathOrUrl), resolvePath(currentDirectory, relativeOrAbsolutePath), ts.equateStringsCaseSensitive, getCanonicalFileName);
+        var firstComponent = pathComponents[0];
+        if (isAbsolutePathAnUrl && isRootedDiskPath(firstComponent)) {
+            var prefix = firstComponent.charAt(0) === ts.directorySeparator ? "file://" : "file:///";
+            pathComponents[0] = prefix + firstComponent;
+        }
+        return getPathFromPathComponents(pathComponents);
+    }
+    ts.getRelativePathToDirectoryOrUrl = getRelativePathToDirectoryOrUrl;
+    function forEachAncestorDirectory(directory, callback) {
+        while (true) {
+            var result = callback(directory);
+            if (result !== undefined) {
+                return result;
+            }
+            var parentPath = getDirectoryPath(directory);
+            if (parentPath === directory) {
+                return undefined;
+            }
+            directory = parentPath;
+        }
+    }
+    ts.forEachAncestorDirectory = forEachAncestorDirectory;
+    function isNodeModulesDirectory(dirPath) {
+        return ts.endsWith(dirPath, "/node_modules");
+    }
+    ts.isNodeModulesDirectory = isNodeModulesDirectory;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function diag(code, category, key, message, reportsUnnecessary, elidedInCompatabilityPyramid) {
+        return { code: code, category: category, key: key, message: message, reportsUnnecessary: reportsUnnecessary, elidedInCompatabilityPyramid: elidedInCompatabilityPyramid };
+    }
+    ts.Diagnostics = {
+        Unterminated_string_literal: diag(1002, ts.DiagnosticCategory.Error, "Unterminated_string_literal_1002", "Unterminated string literal."),
+        Identifier_expected: diag(1003, ts.DiagnosticCategory.Error, "Identifier_expected_1003", "Identifier expected."),
+        _0_expected: diag(1005, ts.DiagnosticCategory.Error, "_0_expected_1005", "'{0}' expected."),
+        A_file_cannot_have_a_reference_to_itself: diag(1006, ts.DiagnosticCategory.Error, "A_file_cannot_have_a_reference_to_itself_1006", "A file cannot have a reference to itself."),
+        The_parser_expected_to_find_a_to_match_the_token_here: diag(1007, ts.DiagnosticCategory.Error, "The_parser_expected_to_find_a_to_match_the_token_here_1007", "The parser expected to find a '}' to match the '{' token here."),
+        Trailing_comma_not_allowed: diag(1009, ts.DiagnosticCategory.Error, "Trailing_comma_not_allowed_1009", "Trailing comma not allowed."),
+        Asterisk_Slash_expected: diag(1010, ts.DiagnosticCategory.Error, "Asterisk_Slash_expected_1010", "'*/' expected."),
+        An_element_access_expression_should_take_an_argument: diag(1011, ts.DiagnosticCategory.Error, "An_element_access_expression_should_take_an_argument_1011", "An element access expression should take an argument."),
+        Unexpected_token: diag(1012, ts.DiagnosticCategory.Error, "Unexpected_token_1012", "Unexpected token."),
+        A_rest_parameter_or_binding_pattern_may_not_have_a_trailing_comma: diag(1013, ts.DiagnosticCategory.Error, "A_rest_parameter_or_binding_pattern_may_not_have_a_trailing_comma_1013", "A rest parameter or binding pattern may not have a trailing comma."),
+        A_rest_parameter_must_be_last_in_a_parameter_list: diag(1014, ts.DiagnosticCategory.Error, "A_rest_parameter_must_be_last_in_a_parameter_list_1014", "A rest parameter must be last in a parameter list."),
+        Parameter_cannot_have_question_mark_and_initializer: diag(1015, ts.DiagnosticCategory.Error, "Parameter_cannot_have_question_mark_and_initializer_1015", "Parameter cannot have question mark and initializer."),
+        A_required_parameter_cannot_follow_an_optional_parameter: diag(1016, ts.DiagnosticCategory.Error, "A_required_parameter_cannot_follow_an_optional_parameter_1016", "A required parameter cannot follow an optional parameter."),
+        An_index_signature_cannot_have_a_rest_parameter: diag(1017, ts.DiagnosticCategory.Error, "An_index_signature_cannot_have_a_rest_parameter_1017", "An index signature cannot have a rest parameter."),
+        An_index_signature_parameter_cannot_have_an_accessibility_modifier: diag(1018, ts.DiagnosticCategory.Error, "An_index_signature_parameter_cannot_have_an_accessibility_modifier_1018", "An index signature parameter cannot have an accessibility modifier."),
+        An_index_signature_parameter_cannot_have_a_question_mark: diag(1019, ts.DiagnosticCategory.Error, "An_index_signature_parameter_cannot_have_a_question_mark_1019", "An index signature parameter cannot have a question mark."),
+        An_index_signature_parameter_cannot_have_an_initializer: diag(1020, ts.DiagnosticCategory.Error, "An_index_signature_parameter_cannot_have_an_initializer_1020", "An index signature parameter cannot have an initializer."),
+        An_index_signature_must_have_a_type_annotation: diag(1021, ts.DiagnosticCategory.Error, "An_index_signature_must_have_a_type_annotation_1021", "An index signature must have a type annotation."),
+        An_index_signature_parameter_must_have_a_type_annotation: diag(1022, ts.DiagnosticCategory.Error, "An_index_signature_parameter_must_have_a_type_annotation_1022", "An index signature parameter must have a type annotation."),
+        An_index_signature_parameter_type_must_be_either_string_or_number: diag(1023, ts.DiagnosticCategory.Error, "An_index_signature_parameter_type_must_be_either_string_or_number_1023", "An index signature parameter type must be either 'string' or 'number'."),
+        readonly_modifier_can_only_appear_on_a_property_declaration_or_index_signature: diag(1024, ts.DiagnosticCategory.Error, "readonly_modifier_can_only_appear_on_a_property_declaration_or_index_signature_1024", "'readonly' modifier can only appear on a property declaration or index signature."),
+        An_index_signature_cannot_have_a_trailing_comma: diag(1025, ts.DiagnosticCategory.Error, "An_index_signature_cannot_have_a_trailing_comma_1025", "An index signature cannot have a trailing comma."),
+        Accessibility_modifier_already_seen: diag(1028, ts.DiagnosticCategory.Error, "Accessibility_modifier_already_seen_1028", "Accessibility modifier already seen."),
+        _0_modifier_must_precede_1_modifier: diag(1029, ts.DiagnosticCategory.Error, "_0_modifier_must_precede_1_modifier_1029", "'{0}' modifier must precede '{1}' modifier."),
+        _0_modifier_already_seen: diag(1030, ts.DiagnosticCategory.Error, "_0_modifier_already_seen_1030", "'{0}' modifier already seen."),
+        _0_modifier_cannot_appear_on_a_class_element: diag(1031, ts.DiagnosticCategory.Error, "_0_modifier_cannot_appear_on_a_class_element_1031", "'{0}' modifier cannot appear on a class element."),
+        super_must_be_followed_by_an_argument_list_or_member_access: diag(1034, ts.DiagnosticCategory.Error, "super_must_be_followed_by_an_argument_list_or_member_access_1034", "'super' must be followed by an argument list or member access."),
+        Only_ambient_modules_can_use_quoted_names: diag(1035, ts.DiagnosticCategory.Error, "Only_ambient_modules_can_use_quoted_names_1035", "Only ambient modules can use quoted names."),
+        Statements_are_not_allowed_in_ambient_contexts: diag(1036, ts.DiagnosticCategory.Error, "Statements_are_not_allowed_in_ambient_contexts_1036", "Statements are not allowed in ambient contexts."),
+        A_declare_modifier_cannot_be_used_in_an_already_ambient_context: diag(1038, ts.DiagnosticCategory.Error, "A_declare_modifier_cannot_be_used_in_an_already_ambient_context_1038", "A 'declare' modifier cannot be used in an already ambient context."),
+        Initializers_are_not_allowed_in_ambient_contexts: diag(1039, ts.DiagnosticCategory.Error, "Initializers_are_not_allowed_in_ambient_contexts_1039", "Initializers are not allowed in ambient contexts."),
+        _0_modifier_cannot_be_used_in_an_ambient_context: diag(1040, ts.DiagnosticCategory.Error, "_0_modifier_cannot_be_used_in_an_ambient_context_1040", "'{0}' modifier cannot be used in an ambient context."),
+        _0_modifier_cannot_be_used_with_a_class_declaration: diag(1041, ts.DiagnosticCategory.Error, "_0_modifier_cannot_be_used_with_a_class_declaration_1041", "'{0}' modifier cannot be used with a class declaration."),
+        _0_modifier_cannot_be_used_here: diag(1042, ts.DiagnosticCategory.Error, "_0_modifier_cannot_be_used_here_1042", "'{0}' modifier cannot be used here."),
+        _0_modifier_cannot_appear_on_a_data_property: diag(1043, ts.DiagnosticCategory.Error, "_0_modifier_cannot_appear_on_a_data_property_1043", "'{0}' modifier cannot appear on a data property."),
+        _0_modifier_cannot_appear_on_a_module_or_namespace_element: diag(1044, ts.DiagnosticCategory.Error, "_0_modifier_cannot_appear_on_a_module_or_namespace_element_1044", "'{0}' modifier cannot appear on a module or namespace element."),
+        A_0_modifier_cannot_be_used_with_an_interface_declaration: diag(1045, ts.DiagnosticCategory.Error, "A_0_modifier_cannot_be_used_with_an_interface_declaration_1045", "A '{0}' modifier cannot be used with an interface declaration."),
+        Top_level_declarations_in_d_ts_files_must_start_with_either_a_declare_or_export_modifier: diag(1046, ts.DiagnosticCategory.Error, "Top_level_declarations_in_d_ts_files_must_start_with_either_a_declare_or_export_modifier_1046", "Top-level declarations in .d.ts files must start with either a 'declare' or 'export' modifier."),
+        A_rest_parameter_cannot_be_optional: diag(1047, ts.DiagnosticCategory.Error, "A_rest_parameter_cannot_be_optional_1047", "A rest parameter cannot be optional."),
+        A_rest_parameter_cannot_have_an_initializer: diag(1048, ts.DiagnosticCategory.Error, "A_rest_parameter_cannot_have_an_initializer_1048", "A rest parameter cannot have an initializer."),
+        A_set_accessor_must_have_exactly_one_parameter: diag(1049, ts.DiagnosticCategory.Error, "A_set_accessor_must_have_exactly_one_parameter_1049", "A 'set' accessor must have exactly one parameter."),
+        A_set_accessor_cannot_have_an_optional_parameter: diag(1051, ts.DiagnosticCategory.Error, "A_set_accessor_cannot_have_an_optional_parameter_1051", "A 'set' accessor cannot have an optional parameter."),
+        A_set_accessor_parameter_cannot_have_an_initializer: diag(1052, ts.DiagnosticCategory.Error, "A_set_accessor_parameter_cannot_have_an_initializer_1052", "A 'set' accessor parameter cannot have an initializer."),
+        A_set_accessor_cannot_have_rest_parameter: diag(1053, ts.DiagnosticCategory.Error, "A_set_accessor_cannot_have_rest_parameter_1053", "A 'set' accessor cannot have rest parameter."),
+        A_get_accessor_cannot_have_parameters: diag(1054, ts.DiagnosticCategory.Error, "A_get_accessor_cannot_have_parameters_1054", "A 'get' accessor cannot have parameters."),
+        Type_0_is_not_a_valid_async_function_return_type_in_ES5_SlashES3_because_it_does_not_refer_to_a_Promise_compatible_constructor_value: diag(1055, ts.DiagnosticCategory.Error, "Type_0_is_not_a_valid_async_function_return_type_in_ES5_SlashES3_because_it_does_not_refer_to_a_Prom_1055", "Type '{0}' is not a valid async function return type in ES5/ES3 because it does not refer to a Promise-compatible constructor value."),
+        Accessors_are_only_available_when_targeting_ECMAScript_5_and_higher: diag(1056, ts.DiagnosticCategory.Error, "Accessors_are_only_available_when_targeting_ECMAScript_5_and_higher_1056", "Accessors are only available when targeting ECMAScript 5 and higher."),
+        An_async_function_or_method_must_have_a_valid_awaitable_return_type: diag(1057, ts.DiagnosticCategory.Error, "An_async_function_or_method_must_have_a_valid_awaitable_return_type_1057", "An async function or method must have a valid awaitable return type."),
+        The_return_type_of_an_async_function_must_either_be_a_valid_promise_or_must_not_contain_a_callable_then_member: diag(1058, ts.DiagnosticCategory.Error, "The_return_type_of_an_async_function_must_either_be_a_valid_promise_or_must_not_contain_a_callable_t_1058", "The return type of an async function must either be a valid promise or must not contain a callable 'then' member."),
+        A_promise_must_have_a_then_method: diag(1059, ts.DiagnosticCategory.Error, "A_promise_must_have_a_then_method_1059", "A promise must have a 'then' method."),
+        The_first_parameter_of_the_then_method_of_a_promise_must_be_a_callback: diag(1060, ts.DiagnosticCategory.Error, "The_first_parameter_of_the_then_method_of_a_promise_must_be_a_callback_1060", "The first parameter of the 'then' method of a promise must be a callback."),
+        Enum_member_must_have_initializer: diag(1061, ts.DiagnosticCategory.Error, "Enum_member_must_have_initializer_1061", "Enum member must have initializer."),
+        Type_is_referenced_directly_or_indirectly_in_the_fulfillment_callback_of_its_own_then_method: diag(1062, ts.DiagnosticCategory.Error, "Type_is_referenced_directly_or_indirectly_in_the_fulfillment_callback_of_its_own_then_method_1062", "Type is referenced directly or indirectly in the fulfillment callback of its own 'then' method."),
+        An_export_assignment_cannot_be_used_in_a_namespace: diag(1063, ts.DiagnosticCategory.Error, "An_export_assignment_cannot_be_used_in_a_namespace_1063", "An export assignment cannot be used in a namespace."),
+        The_return_type_of_an_async_function_or_method_must_be_the_global_Promise_T_type: diag(1064, ts.DiagnosticCategory.Error, "The_return_type_of_an_async_function_or_method_must_be_the_global_Promise_T_type_1064", "The return type of an async function or method must be the global Promise<T> type."),
+        In_ambient_enum_declarations_member_initializer_must_be_constant_expression: diag(1066, ts.DiagnosticCategory.Error, "In_ambient_enum_declarations_member_initializer_must_be_constant_expression_1066", "In ambient enum declarations member initializer must be constant expression."),
+        Unexpected_token_A_constructor_method_accessor_or_property_was_expected: diag(1068, ts.DiagnosticCategory.Error, "Unexpected_token_A_constructor_method_accessor_or_property_was_expected_1068", "Unexpected token. A constructor, method, accessor, or property was expected."),
+        Unexpected_token_A_type_parameter_name_was_expected_without_curly_braces: diag(1069, ts.DiagnosticCategory.Error, "Unexpected_token_A_type_parameter_name_was_expected_without_curly_braces_1069", "Unexpected token. A type parameter name was expected without curly braces."),
+        _0_modifier_cannot_appear_on_a_type_member: diag(1070, ts.DiagnosticCategory.Error, "_0_modifier_cannot_appear_on_a_type_member_1070", "'{0}' modifier cannot appear on a type member."),
+        _0_modifier_cannot_appear_on_an_index_signature: diag(1071, ts.DiagnosticCategory.Error, "_0_modifier_cannot_appear_on_an_index_signature_1071", "'{0}' modifier cannot appear on an index signature."),
+        A_0_modifier_cannot_be_used_with_an_import_declaration: diag(1079, ts.DiagnosticCategory.Error, "A_0_modifier_cannot_be_used_with_an_import_declaration_1079", "A '{0}' modifier cannot be used with an import declaration."),
+        Invalid_reference_directive_syntax: diag(1084, ts.DiagnosticCategory.Error, "Invalid_reference_directive_syntax_1084", "Invalid 'reference' directive syntax."),
+        Octal_literals_are_not_available_when_targeting_ECMAScript_5_and_higher_Use_the_syntax_0: diag(1085, ts.DiagnosticCategory.Error, "Octal_literals_are_not_available_when_targeting_ECMAScript_5_and_higher_Use_the_syntax_0_1085", "Octal literals are not available when targeting ECMAScript 5 and higher. Use the syntax '{0}'."),
+        _0_modifier_cannot_appear_on_a_constructor_declaration: diag(1089, ts.DiagnosticCategory.Error, "_0_modifier_cannot_appear_on_a_constructor_declaration_1089", "'{0}' modifier cannot appear on a constructor declaration."),
+        _0_modifier_cannot_appear_on_a_parameter: diag(1090, ts.DiagnosticCategory.Error, "_0_modifier_cannot_appear_on_a_parameter_1090", "'{0}' modifier cannot appear on a parameter."),
+        Only_a_single_variable_declaration_is_allowed_in_a_for_in_statement: diag(1091, ts.DiagnosticCategory.Error, "Only_a_single_variable_declaration_is_allowed_in_a_for_in_statement_1091", "Only a single variable declaration is allowed in a 'for...in' statement."),
+        Type_parameters_cannot_appear_on_a_constructor_declaration: diag(1092, ts.DiagnosticCategory.Error, "Type_parameters_cannot_appear_on_a_constructor_declaration_1092", "Type parameters cannot appear on a constructor declaration."),
+        Type_annotation_cannot_appear_on_a_constructor_declaration: diag(1093, ts.DiagnosticCategory.Error, "Type_annotation_cannot_appear_on_a_constructor_declaration_1093", "Type annotation cannot appear on a constructor declaration."),
+        An_accessor_cannot_have_type_parameters: diag(1094, ts.DiagnosticCategory.Error, "An_accessor_cannot_have_type_parameters_1094", "An accessor cannot have type parameters."),
+        A_set_accessor_cannot_have_a_return_type_annotation: diag(1095, ts.DiagnosticCategory.Error, "A_set_accessor_cannot_have_a_return_type_annotation_1095", "A 'set' accessor cannot have a return type annotation."),
+        An_index_signature_must_have_exactly_one_parameter: diag(1096, ts.DiagnosticCategory.Error, "An_index_signature_must_have_exactly_one_parameter_1096", "An index signature must have exactly one parameter."),
+        _0_list_cannot_be_empty: diag(1097, ts.DiagnosticCategory.Error, "_0_list_cannot_be_empty_1097", "'{0}' list cannot be empty."),
+        Type_parameter_list_cannot_be_empty: diag(1098, ts.DiagnosticCategory.Error, "Type_parameter_list_cannot_be_empty_1098", "Type parameter list cannot be empty."),
+        Type_argument_list_cannot_be_empty: diag(1099, ts.DiagnosticCategory.Error, "Type_argument_list_cannot_be_empty_1099", "Type argument list cannot be empty."),
+        Invalid_use_of_0_in_strict_mode: diag(1100, ts.DiagnosticCategory.Error, "Invalid_use_of_0_in_strict_mode_1100", "Invalid use of '{0}' in strict mode."),
+        with_statements_are_not_allowed_in_strict_mode: diag(1101, ts.DiagnosticCategory.Error, "with_statements_are_not_allowed_in_strict_mode_1101", "'with' statements are not allowed in strict mode."),
+        delete_cannot_be_called_on_an_identifier_in_strict_mode: diag(1102, ts.DiagnosticCategory.Error, "delete_cannot_be_called_on_an_identifier_in_strict_mode_1102", "'delete' cannot be called on an identifier in strict mode."),
+        A_for_await_of_statement_is_only_allowed_within_an_async_function_or_async_generator: diag(1103, ts.DiagnosticCategory.Error, "A_for_await_of_statement_is_only_allowed_within_an_async_function_or_async_generator_1103", "A 'for-await-of' statement is only allowed within an async function or async generator."),
+        A_continue_statement_can_only_be_used_within_an_enclosing_iteration_statement: diag(1104, ts.DiagnosticCategory.Error, "A_continue_statement_can_only_be_used_within_an_enclosing_iteration_statement_1104", "A 'continue' statement can only be used within an enclosing iteration statement."),
+        A_break_statement_can_only_be_used_within_an_enclosing_iteration_or_switch_statement: diag(1105, ts.DiagnosticCategory.Error, "A_break_statement_can_only_be_used_within_an_enclosing_iteration_or_switch_statement_1105", "A 'break' statement can only be used within an enclosing iteration or switch statement."),
+        Jump_target_cannot_cross_function_boundary: diag(1107, ts.DiagnosticCategory.Error, "Jump_target_cannot_cross_function_boundary_1107", "Jump target cannot cross function boundary."),
+        A_return_statement_can_only_be_used_within_a_function_body: diag(1108, ts.DiagnosticCategory.Error, "A_return_statement_can_only_be_used_within_a_function_body_1108", "A 'return' statement can only be used within a function body."),
+        Expression_expected: diag(1109, ts.DiagnosticCategory.Error, "Expression_expected_1109", "Expression expected."),
+        Type_expected: diag(1110, ts.DiagnosticCategory.Error, "Type_expected_1110", "Type expected."),
+        A_default_clause_cannot_appear_more_than_once_in_a_switch_statement: diag(1113, ts.DiagnosticCategory.Error, "A_default_clause_cannot_appear_more_than_once_in_a_switch_statement_1113", "A 'default' clause cannot appear more than once in a 'switch' statement."),
+        Duplicate_label_0: diag(1114, ts.DiagnosticCategory.Error, "Duplicate_label_0_1114", "Duplicate label '{0}'."),
+        A_continue_statement_can_only_jump_to_a_label_of_an_enclosing_iteration_statement: diag(1115, ts.DiagnosticCategory.Error, "A_continue_statement_can_only_jump_to_a_label_of_an_enclosing_iteration_statement_1115", "A 'continue' statement can only jump to a label of an enclosing iteration statement."),
+        A_break_statement_can_only_jump_to_a_label_of_an_enclosing_statement: diag(1116, ts.DiagnosticCategory.Error, "A_break_statement_can_only_jump_to_a_label_of_an_enclosing_statement_1116", "A 'break' statement can only jump to a label of an enclosing statement."),
+        An_object_literal_cannot_have_multiple_properties_with_the_same_name_in_strict_mode: diag(1117, ts.DiagnosticCategory.Error, "An_object_literal_cannot_have_multiple_properties_with_the_same_name_in_strict_mode_1117", "An object literal cannot have multiple properties with the same name in strict mode."),
+        An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name: diag(1118, ts.DiagnosticCategory.Error, "An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name_1118", "An object literal cannot have multiple get/set accessors with the same name."),
+        An_object_literal_cannot_have_property_and_accessor_with_the_same_name: diag(1119, ts.DiagnosticCategory.Error, "An_object_literal_cannot_have_property_and_accessor_with_the_same_name_1119", "An object literal cannot have property and accessor with the same name."),
+        An_export_assignment_cannot_have_modifiers: diag(1120, ts.DiagnosticCategory.Error, "An_export_assignment_cannot_have_modifiers_1120", "An export assignment cannot have modifiers."),
+        Octal_literals_are_not_allowed_in_strict_mode: diag(1121, ts.DiagnosticCategory.Error, "Octal_literals_are_not_allowed_in_strict_mode_1121", "Octal literals are not allowed in strict mode."),
+        Variable_declaration_list_cannot_be_empty: diag(1123, ts.DiagnosticCategory.Error, "Variable_declaration_list_cannot_be_empty_1123", "Variable declaration list cannot be empty."),
+        Digit_expected: diag(1124, ts.DiagnosticCategory.Error, "Digit_expected_1124", "Digit expected."),
+        Hexadecimal_digit_expected: diag(1125, ts.DiagnosticCategory.Error, "Hexadecimal_digit_expected_1125", "Hexadecimal digit expected."),
+        Unexpected_end_of_text: diag(1126, ts.DiagnosticCategory.Error, "Unexpected_end_of_text_1126", "Unexpected end of text."),
+        Invalid_character: diag(1127, ts.DiagnosticCategory.Error, "Invalid_character_1127", "Invalid character."),
+        Declaration_or_statement_expected: diag(1128, ts.DiagnosticCategory.Error, "Declaration_or_statement_expected_1128", "Declaration or statement expected."),
+        Statement_expected: diag(1129, ts.DiagnosticCategory.Error, "Statement_expected_1129", "Statement expected."),
+        case_or_default_expected: diag(1130, ts.DiagnosticCategory.Error, "case_or_default_expected_1130", "'case' or 'default' expected."),
+        Property_or_signature_expected: diag(1131, ts.DiagnosticCategory.Error, "Property_or_signature_expected_1131", "Property or signature expected."),
+        Enum_member_expected: diag(1132, ts.DiagnosticCategory.Error, "Enum_member_expected_1132", "Enum member expected."),
+        Variable_declaration_expected: diag(1134, ts.DiagnosticCategory.Error, "Variable_declaration_expected_1134", "Variable declaration expected."),
+        Argument_expression_expected: diag(1135, ts.DiagnosticCategory.Error, "Argument_expression_expected_1135", "Argument expression expected."),
+        Property_assignment_expected: diag(1136, ts.DiagnosticCategory.Error, "Property_assignment_expected_1136", "Property assignment expected."),
+        Expression_or_comma_expected: diag(1137, ts.DiagnosticCategory.Error, "Expression_or_comma_expected_1137", "Expression or comma expected."),
+        Parameter_declaration_expected: diag(1138, ts.DiagnosticCategory.Error, "Parameter_declaration_expected_1138", "Parameter declaration expected."),
+        Type_parameter_declaration_expected: diag(1139, ts.DiagnosticCategory.Error, "Type_parameter_declaration_expected_1139", "Type parameter declaration expected."),
+        Type_argument_expected: diag(1140, ts.DiagnosticCategory.Error, "Type_argument_expected_1140", "Type argument expected."),
+        String_literal_expected: diag(1141, ts.DiagnosticCategory.Error, "String_literal_expected_1141", "String literal expected."),
+        Line_break_not_permitted_here: diag(1142, ts.DiagnosticCategory.Error, "Line_break_not_permitted_here_1142", "Line break not permitted here."),
+        or_expected: diag(1144, ts.DiagnosticCategory.Error, "or_expected_1144", "'{' or ';' expected."),
+        Declaration_expected: diag(1146, ts.DiagnosticCategory.Error, "Declaration_expected_1146", "Declaration expected."),
+        Import_declarations_in_a_namespace_cannot_reference_a_module: diag(1147, ts.DiagnosticCategory.Error, "Import_declarations_in_a_namespace_cannot_reference_a_module_1147", "Import declarations in a namespace cannot reference a module."),
+        Cannot_use_imports_exports_or_module_augmentations_when_module_is_none: diag(1148, ts.DiagnosticCategory.Error, "Cannot_use_imports_exports_or_module_augmentations_when_module_is_none_1148", "Cannot use imports, exports, or module augmentations when '--module' is 'none'."),
+        File_name_0_differs_from_already_included_file_name_1_only_in_casing: diag(1149, ts.DiagnosticCategory.Error, "File_name_0_differs_from_already_included_file_name_1_only_in_casing_1149", "File name '{0}' differs from already included file name '{1}' only in casing."),
+        const_declarations_must_be_initialized: diag(1155, ts.DiagnosticCategory.Error, "const_declarations_must_be_initialized_1155", "'const' declarations must be initialized."),
+        const_declarations_can_only_be_declared_inside_a_block: diag(1156, ts.DiagnosticCategory.Error, "const_declarations_can_only_be_declared_inside_a_block_1156", "'const' declarations can only be declared inside a block."),
+        let_declarations_can_only_be_declared_inside_a_block: diag(1157, ts.DiagnosticCategory.Error, "let_declarations_can_only_be_declared_inside_a_block_1157", "'let' declarations can only be declared inside a block."),
+        Unterminated_template_literal: diag(1160, ts.DiagnosticCategory.Error, "Unterminated_template_literal_1160", "Unterminated template literal."),
+        Unterminated_regular_expression_literal: diag(1161, ts.DiagnosticCategory.Error, "Unterminated_regular_expression_literal_1161", "Unterminated regular expression literal."),
+        An_object_member_cannot_be_declared_optional: diag(1162, ts.DiagnosticCategory.Error, "An_object_member_cannot_be_declared_optional_1162", "An object member cannot be declared optional."),
+        A_yield_expression_is_only_allowed_in_a_generator_body: diag(1163, ts.DiagnosticCategory.Error, "A_yield_expression_is_only_allowed_in_a_generator_body_1163", "A 'yield' expression is only allowed in a generator body."),
+        Computed_property_names_are_not_allowed_in_enums: diag(1164, ts.DiagnosticCategory.Error, "Computed_property_names_are_not_allowed_in_enums_1164", "Computed property names are not allowed in enums."),
+        A_computed_property_name_in_an_ambient_context_must_refer_to_an_expression_whose_type_is_a_literal_type_or_a_unique_symbol_type: diag(1165, ts.DiagnosticCategory.Error, "A_computed_property_name_in_an_ambient_context_must_refer_to_an_expression_whose_type_is_a_literal_t_1165", "A computed property name in an ambient context must refer to an expression whose type is a literal type or a 'unique symbol' type."),
+        A_computed_property_name_in_a_class_property_declaration_must_refer_to_an_expression_whose_type_is_a_literal_type_or_a_unique_symbol_type: diag(1166, ts.DiagnosticCategory.Error, "A_computed_property_name_in_a_class_property_declaration_must_refer_to_an_expression_whose_type_is_a_1166", "A computed property name in a class property declaration must refer to an expression whose type is a literal type or a 'unique symbol' type."),
+        A_computed_property_name_in_a_method_overload_must_refer_to_an_expression_whose_type_is_a_literal_type_or_a_unique_symbol_type: diag(1168, ts.DiagnosticCategory.Error, "A_computed_property_name_in_a_method_overload_must_refer_to_an_expression_whose_type_is_a_literal_ty_1168", "A computed property name in a method overload must refer to an expression whose type is a literal type or a 'unique symbol' type."),
+        A_computed_property_name_in_an_interface_must_refer_to_an_expression_whose_type_is_a_literal_type_or_a_unique_symbol_type: diag(1169, ts.DiagnosticCategory.Error, "A_computed_property_name_in_an_interface_must_refer_to_an_expression_whose_type_is_a_literal_type_or_1169", "A computed property name in an interface must refer to an expression whose type is a literal type or a 'unique symbol' type."),
+        A_computed_property_name_in_a_type_literal_must_refer_to_an_expression_whose_type_is_a_literal_type_or_a_unique_symbol_type: diag(1170, ts.DiagnosticCategory.Error, "A_computed_property_name_in_a_type_literal_must_refer_to_an_expression_whose_type_is_a_literal_type__1170", "A computed property name in a type literal must refer to an expression whose type is a literal type or a 'unique symbol' type."),
+        A_comma_expression_is_not_allowed_in_a_computed_property_name: diag(1171, ts.DiagnosticCategory.Error, "A_comma_expression_is_not_allowed_in_a_computed_property_name_1171", "A comma expression is not allowed in a computed property name."),
+        extends_clause_already_seen: diag(1172, ts.DiagnosticCategory.Error, "extends_clause_already_seen_1172", "'extends' clause already seen."),
+        extends_clause_must_precede_implements_clause: diag(1173, ts.DiagnosticCategory.Error, "extends_clause_must_precede_implements_clause_1173", "'extends' clause must precede 'implements' clause."),
+        Classes_can_only_extend_a_single_class: diag(1174, ts.DiagnosticCategory.Error, "Classes_can_only_extend_a_single_class_1174", "Classes can only extend a single class."),
+        implements_clause_already_seen: diag(1175, ts.DiagnosticCategory.Error, "implements_clause_already_seen_1175", "'implements' clause already seen."),
+        Interface_declaration_cannot_have_implements_clause: diag(1176, ts.DiagnosticCategory.Error, "Interface_declaration_cannot_have_implements_clause_1176", "Interface declaration cannot have 'implements' clause."),
+        Binary_digit_expected: diag(1177, ts.DiagnosticCategory.Error, "Binary_digit_expected_1177", "Binary digit expected."),
+        Octal_digit_expected: diag(1178, ts.DiagnosticCategory.Error, "Octal_digit_expected_1178", "Octal digit expected."),
+        Unexpected_token_expected: diag(1179, ts.DiagnosticCategory.Error, "Unexpected_token_expected_1179", "Unexpected token. '{' expected."),
+        Property_destructuring_pattern_expected: diag(1180, ts.DiagnosticCategory.Error, "Property_destructuring_pattern_expected_1180", "Property destructuring pattern expected."),
+        Array_element_destructuring_pattern_expected: diag(1181, ts.DiagnosticCategory.Error, "Array_element_destructuring_pattern_expected_1181", "Array element destructuring pattern expected."),
+        A_destructuring_declaration_must_have_an_initializer: diag(1182, ts.DiagnosticCategory.Error, "A_destructuring_declaration_must_have_an_initializer_1182", "A destructuring declaration must have an initializer."),
+        An_implementation_cannot_be_declared_in_ambient_contexts: diag(1183, ts.DiagnosticCategory.Error, "An_implementation_cannot_be_declared_in_ambient_contexts_1183", "An implementation cannot be declared in ambient contexts."),
+        Modifiers_cannot_appear_here: diag(1184, ts.DiagnosticCategory.Error, "Modifiers_cannot_appear_here_1184", "Modifiers cannot appear here."),
+        Merge_conflict_marker_encountered: diag(1185, ts.DiagnosticCategory.Error, "Merge_conflict_marker_encountered_1185", "Merge conflict marker encountered."),
+        A_rest_element_cannot_have_an_initializer: diag(1186, ts.DiagnosticCategory.Error, "A_rest_element_cannot_have_an_initializer_1186", "A rest element cannot have an initializer."),
+        A_parameter_property_may_not_be_declared_using_a_binding_pattern: diag(1187, ts.DiagnosticCategory.Error, "A_parameter_property_may_not_be_declared_using_a_binding_pattern_1187", "A parameter property may not be declared using a binding pattern."),
+        Only_a_single_variable_declaration_is_allowed_in_a_for_of_statement: diag(1188, ts.DiagnosticCategory.Error, "Only_a_single_variable_declaration_is_allowed_in_a_for_of_statement_1188", "Only a single variable declaration is allowed in a 'for...of' statement."),
+        The_variable_declaration_of_a_for_in_statement_cannot_have_an_initializer: diag(1189, ts.DiagnosticCategory.Error, "The_variable_declaration_of_a_for_in_statement_cannot_have_an_initializer_1189", "The variable declaration of a 'for...in' statement cannot have an initializer."),
+        The_variable_declaration_of_a_for_of_statement_cannot_have_an_initializer: diag(1190, ts.DiagnosticCategory.Error, "The_variable_declaration_of_a_for_of_statement_cannot_have_an_initializer_1190", "The variable declaration of a 'for...of' statement cannot have an initializer."),
+        An_import_declaration_cannot_have_modifiers: diag(1191, ts.DiagnosticCategory.Error, "An_import_declaration_cannot_have_modifiers_1191", "An import declaration cannot have modifiers."),
+        Module_0_has_no_default_export: diag(1192, ts.DiagnosticCategory.Error, "Module_0_has_no_default_export_1192", "Module '{0}' has no default export."),
+        An_export_declaration_cannot_have_modifiers: diag(1193, ts.DiagnosticCategory.Error, "An_export_declaration_cannot_have_modifiers_1193", "An export declaration cannot have modifiers."),
+        Export_declarations_are_not_permitted_in_a_namespace: diag(1194, ts.DiagnosticCategory.Error, "Export_declarations_are_not_permitted_in_a_namespace_1194", "Export declarations are not permitted in a namespace."),
+        export_Asterisk_does_not_re_export_a_default: diag(1195, ts.DiagnosticCategory.Error, "export_Asterisk_does_not_re_export_a_default_1195", "'export *' does not re-export a default."),
+        Catch_clause_variable_cannot_have_a_type_annotation: diag(1196, ts.DiagnosticCategory.Error, "Catch_clause_variable_cannot_have_a_type_annotation_1196", "Catch clause variable cannot have a type annotation."),
+        Catch_clause_variable_cannot_have_an_initializer: diag(1197, ts.DiagnosticCategory.Error, "Catch_clause_variable_cannot_have_an_initializer_1197", "Catch clause variable cannot have an initializer."),
+        An_extended_Unicode_escape_value_must_be_between_0x0_and_0x10FFFF_inclusive: diag(1198, ts.DiagnosticCategory.Error, "An_extended_Unicode_escape_value_must_be_between_0x0_and_0x10FFFF_inclusive_1198", "An extended Unicode escape value must be between 0x0 and 0x10FFFF inclusive."),
+        Unterminated_Unicode_escape_sequence: diag(1199, ts.DiagnosticCategory.Error, "Unterminated_Unicode_escape_sequence_1199", "Unterminated Unicode escape sequence."),
+        Line_terminator_not_permitted_before_arrow: diag(1200, ts.DiagnosticCategory.Error, "Line_terminator_not_permitted_before_arrow_1200", "Line terminator not permitted before arrow."),
+        Import_assignment_cannot_be_used_when_targeting_ECMAScript_modules_Consider_using_import_Asterisk_as_ns_from_mod_import_a_from_mod_import_d_from_mod_or_another_module_format_instead: diag(1202, ts.DiagnosticCategory.Error, "Import_assignment_cannot_be_used_when_targeting_ECMAScript_modules_Consider_using_import_Asterisk_as_1202", "Import assignment cannot be used when targeting ECMAScript modules. Consider using 'import * as ns from \"mod\"', 'import {a} from \"mod\"', 'import d from \"mod\"', or another module format instead."),
+        Export_assignment_cannot_be_used_when_targeting_ECMAScript_modules_Consider_using_export_default_or_another_module_format_instead: diag(1203, ts.DiagnosticCategory.Error, "Export_assignment_cannot_be_used_when_targeting_ECMAScript_modules_Consider_using_export_default_or__1203", "Export assignment cannot be used when targeting ECMAScript modules. Consider using 'export default' or another module format instead."),
+        Re_exporting_a_type_when_the_isolatedModules_flag_is_provided_requires_using_export_type: diag(1205, ts.DiagnosticCategory.Error, "Re_exporting_a_type_when_the_isolatedModules_flag_is_provided_requires_using_export_type_1205", "Re-exporting a type when the '--isolatedModules' flag is provided requires using 'export type'."),
+        Decorators_are_not_valid_here: diag(1206, ts.DiagnosticCategory.Error, "Decorators_are_not_valid_here_1206", "Decorators are not valid here."),
+        Decorators_cannot_be_applied_to_multiple_get_Slashset_accessors_of_the_same_name: diag(1207, ts.DiagnosticCategory.Error, "Decorators_cannot_be_applied_to_multiple_get_Slashset_accessors_of_the_same_name_1207", "Decorators cannot be applied to multiple get/set accessors of the same name."),
+        All_files_must_be_modules_when_the_isolatedModules_flag_is_provided: diag(1208, ts.DiagnosticCategory.Error, "All_files_must_be_modules_when_the_isolatedModules_flag_is_provided_1208", "All files must be modules when the '--isolatedModules' flag is provided."),
+        Invalid_use_of_0_Class_definitions_are_automatically_in_strict_mode: diag(1210, ts.DiagnosticCategory.Error, "Invalid_use_of_0_Class_definitions_are_automatically_in_strict_mode_1210", "Invalid use of '{0}'. Class definitions are automatically in strict mode."),
+        A_class_declaration_without_the_default_modifier_must_have_a_name: diag(1211, ts.DiagnosticCategory.Error, "A_class_declaration_without_the_default_modifier_must_have_a_name_1211", "A class declaration without the 'default' modifier must have a name."),
+        Identifier_expected_0_is_a_reserved_word_in_strict_mode: diag(1212, ts.DiagnosticCategory.Error, "Identifier_expected_0_is_a_reserved_word_in_strict_mode_1212", "Identifier expected. '{0}' is a reserved word in strict mode."),
+        Identifier_expected_0_is_a_reserved_word_in_strict_mode_Class_definitions_are_automatically_in_strict_mode: diag(1213, ts.DiagnosticCategory.Error, "Identifier_expected_0_is_a_reserved_word_in_strict_mode_Class_definitions_are_automatically_in_stric_1213", "Identifier expected. '{0}' is a reserved word in strict mode. Class definitions are automatically in strict mode."),
+        Identifier_expected_0_is_a_reserved_word_in_strict_mode_Modules_are_automatically_in_strict_mode: diag(1214, ts.DiagnosticCategory.Error, "Identifier_expected_0_is_a_reserved_word_in_strict_mode_Modules_are_automatically_in_strict_mode_1214", "Identifier expected. '{0}' is a reserved word in strict mode. Modules are automatically in strict mode."),
+        Invalid_use_of_0_Modules_are_automatically_in_strict_mode: diag(1215, ts.DiagnosticCategory.Error, "Invalid_use_of_0_Modules_are_automatically_in_strict_mode_1215", "Invalid use of '{0}'. Modules are automatically in strict mode."),
+        Identifier_expected_esModule_is_reserved_as_an_exported_marker_when_transforming_ECMAScript_modules: diag(1216, ts.DiagnosticCategory.Error, "Identifier_expected_esModule_is_reserved_as_an_exported_marker_when_transforming_ECMAScript_modules_1216", "Identifier expected. '__esModule' is reserved as an exported marker when transforming ECMAScript modules."),
+        Export_assignment_is_not_supported_when_module_flag_is_system: diag(1218, ts.DiagnosticCategory.Error, "Export_assignment_is_not_supported_when_module_flag_is_system_1218", "Export assignment is not supported when '--module' flag is 'system'."),
+        Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalDecorators_option_in_your_tsconfig_or_jsconfig_to_remove_this_warning: diag(1219, ts.DiagnosticCategory.Error, "Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_t_1219", "Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option in your 'tsconfig' or 'jsconfig' to remove this warning."),
+        Generators_are_only_available_when_targeting_ECMAScript_2015_or_higher: diag(1220, ts.DiagnosticCategory.Error, "Generators_are_only_available_when_targeting_ECMAScript_2015_or_higher_1220", "Generators are only available when targeting ECMAScript 2015 or higher."),
+        Generators_are_not_allowed_in_an_ambient_context: diag(1221, ts.DiagnosticCategory.Error, "Generators_are_not_allowed_in_an_ambient_context_1221", "Generators are not allowed in an ambient context."),
+        An_overload_signature_cannot_be_declared_as_a_generator: diag(1222, ts.DiagnosticCategory.Error, "An_overload_signature_cannot_be_declared_as_a_generator_1222", "An overload signature cannot be declared as a generator."),
+        _0_tag_already_specified: diag(1223, ts.DiagnosticCategory.Error, "_0_tag_already_specified_1223", "'{0}' tag already specified."),
+        Signature_0_must_be_a_type_predicate: diag(1224, ts.DiagnosticCategory.Error, "Signature_0_must_be_a_type_predicate_1224", "Signature '{0}' must be a type predicate."),
+        Cannot_find_parameter_0: diag(1225, ts.DiagnosticCategory.Error, "Cannot_find_parameter_0_1225", "Cannot find parameter '{0}'."),
+        Type_predicate_0_is_not_assignable_to_1: diag(1226, ts.DiagnosticCategory.Error, "Type_predicate_0_is_not_assignable_to_1_1226", "Type predicate '{0}' is not assignable to '{1}'."),
+        Parameter_0_is_not_in_the_same_position_as_parameter_1: diag(1227, ts.DiagnosticCategory.Error, "Parameter_0_is_not_in_the_same_position_as_parameter_1_1227", "Parameter '{0}' is not in the same position as parameter '{1}'."),
+        A_type_predicate_is_only_allowed_in_return_type_position_for_functions_and_methods: diag(1228, ts.DiagnosticCategory.Error, "A_type_predicate_is_only_allowed_in_return_type_position_for_functions_and_methods_1228", "A type predicate is only allowed in return type position for functions and methods."),
+        A_type_predicate_cannot_reference_a_rest_parameter: diag(1229, ts.DiagnosticCategory.Error, "A_type_predicate_cannot_reference_a_rest_parameter_1229", "A type predicate cannot reference a rest parameter."),
+        A_type_predicate_cannot_reference_element_0_in_a_binding_pattern: diag(1230, ts.DiagnosticCategory.Error, "A_type_predicate_cannot_reference_element_0_in_a_binding_pattern_1230", "A type predicate cannot reference element '{0}' in a binding pattern."),
+        An_export_assignment_can_only_be_used_in_a_module: diag(1231, ts.DiagnosticCategory.Error, "An_export_assignment_can_only_be_used_in_a_module_1231", "An export assignment can only be used in a module."),
+        An_import_declaration_can_only_be_used_in_a_namespace_or_module: diag(1232, ts.DiagnosticCategory.Error, "An_import_declaration_can_only_be_used_in_a_namespace_or_module_1232", "An import declaration can only be used in a namespace or module."),
+        An_export_declaration_can_only_be_used_in_a_module: diag(1233, ts.DiagnosticCategory.Error, "An_export_declaration_can_only_be_used_in_a_module_1233", "An export declaration can only be used in a module."),
+        An_ambient_module_declaration_is_only_allowed_at_the_top_level_in_a_file: diag(1234, ts.DiagnosticCategory.Error, "An_ambient_module_declaration_is_only_allowed_at_the_top_level_in_a_file_1234", "An ambient module declaration is only allowed at the top level in a file."),
+        A_namespace_declaration_is_only_allowed_in_a_namespace_or_module: diag(1235, ts.DiagnosticCategory.Error, "A_namespace_declaration_is_only_allowed_in_a_namespace_or_module_1235", "A namespace declaration is only allowed in a namespace or module."),
+        The_return_type_of_a_property_decorator_function_must_be_either_void_or_any: diag(1236, ts.DiagnosticCategory.Error, "The_return_type_of_a_property_decorator_function_must_be_either_void_or_any_1236", "The return type of a property decorator function must be either 'void' or 'any'."),
+        The_return_type_of_a_parameter_decorator_function_must_be_either_void_or_any: diag(1237, ts.DiagnosticCategory.Error, "The_return_type_of_a_parameter_decorator_function_must_be_either_void_or_any_1237", "The return type of a parameter decorator function must be either 'void' or 'any'."),
+        Unable_to_resolve_signature_of_class_decorator_when_called_as_an_expression: diag(1238, ts.DiagnosticCategory.Error, "Unable_to_resolve_signature_of_class_decorator_when_called_as_an_expression_1238", "Unable to resolve signature of class decorator when called as an expression."),
+        Unable_to_resolve_signature_of_parameter_decorator_when_called_as_an_expression: diag(1239, ts.DiagnosticCategory.Error, "Unable_to_resolve_signature_of_parameter_decorator_when_called_as_an_expression_1239", "Unable to resolve signature of parameter decorator when called as an expression."),
+        Unable_to_resolve_signature_of_property_decorator_when_called_as_an_expression: diag(1240, ts.DiagnosticCategory.Error, "Unable_to_resolve_signature_of_property_decorator_when_called_as_an_expression_1240", "Unable to resolve signature of property decorator when called as an expression."),
+        Unable_to_resolve_signature_of_method_decorator_when_called_as_an_expression: diag(1241, ts.DiagnosticCategory.Error, "Unable_to_resolve_signature_of_method_decorator_when_called_as_an_expression_1241", "Unable to resolve signature of method decorator when called as an expression."),
+        abstract_modifier_can_only_appear_on_a_class_method_or_property_declaration: diag(1242, ts.DiagnosticCategory.Error, "abstract_modifier_can_only_appear_on_a_class_method_or_property_declaration_1242", "'abstract' modifier can only appear on a class, method, or property declaration."),
+        _0_modifier_cannot_be_used_with_1_modifier: diag(1243, ts.DiagnosticCategory.Error, "_0_modifier_cannot_be_used_with_1_modifier_1243", "'{0}' modifier cannot be used with '{1}' modifier."),
+        Abstract_methods_can_only_appear_within_an_abstract_class: diag(1244, ts.DiagnosticCategory.Error, "Abstract_methods_can_only_appear_within_an_abstract_class_1244", "Abstract methods can only appear within an abstract class."),
+        Method_0_cannot_have_an_implementation_because_it_is_marked_abstract: diag(1245, ts.DiagnosticCategory.Error, "Method_0_cannot_have_an_implementation_because_it_is_marked_abstract_1245", "Method '{0}' cannot have an implementation because it is marked abstract."),
+        An_interface_property_cannot_have_an_initializer: diag(1246, ts.DiagnosticCategory.Error, "An_interface_property_cannot_have_an_initializer_1246", "An interface property cannot have an initializer."),
+        A_type_literal_property_cannot_have_an_initializer: diag(1247, ts.DiagnosticCategory.Error, "A_type_literal_property_cannot_have_an_initializer_1247", "A type literal property cannot have an initializer."),
+        A_class_member_cannot_have_the_0_keyword: diag(1248, ts.DiagnosticCategory.Error, "A_class_member_cannot_have_the_0_keyword_1248", "A class member cannot have the '{0}' keyword."),
+        A_decorator_can_only_decorate_a_method_implementation_not_an_overload: diag(1249, ts.DiagnosticCategory.Error, "A_decorator_can_only_decorate_a_method_implementation_not_an_overload_1249", "A decorator can only decorate a method implementation, not an overload."),
+        Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5: diag(1250, ts.DiagnosticCategory.Error, "Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_1250", "Function declarations are not allowed inside blocks in strict mode when targeting 'ES3' or 'ES5'."),
+        Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Class_definitions_are_automatically_in_strict_mode: diag(1251, ts.DiagnosticCategory.Error, "Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Class_d_1251", "Function declarations are not allowed inside blocks in strict mode when targeting 'ES3' or 'ES5'. Class definitions are automatically in strict mode."),
+        Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Modules_are_automatically_in_strict_mode: diag(1252, ts.DiagnosticCategory.Error, "Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Modules_1252", "Function declarations are not allowed inside blocks in strict mode when targeting 'ES3' or 'ES5'. Modules are automatically in strict mode."),
+        _0_tag_cannot_be_used_independently_as_a_top_level_JSDoc_tag: diag(1253, ts.DiagnosticCategory.Error, "_0_tag_cannot_be_used_independently_as_a_top_level_JSDoc_tag_1253", "'{0}' tag cannot be used independently as a top level JSDoc tag."),
+        A_const_initializer_in_an_ambient_context_must_be_a_string_or_numeric_literal_or_literal_enum_reference: diag(1254, ts.DiagnosticCategory.Error, "A_const_initializer_in_an_ambient_context_must_be_a_string_or_numeric_literal_or_literal_enum_refere_1254", "A 'const' initializer in an ambient context must be a string or numeric literal or literal enum reference."),
+        A_definite_assignment_assertion_is_not_permitted_in_this_context: diag(1255, ts.DiagnosticCategory.Error, "A_definite_assignment_assertion_is_not_permitted_in_this_context_1255", "A definite assignment assertion '!' is not permitted in this context."),
+        A_rest_element_must_be_last_in_a_tuple_type: diag(1256, ts.DiagnosticCategory.Error, "A_rest_element_must_be_last_in_a_tuple_type_1256", "A rest element must be last in a tuple type."),
+        A_required_element_cannot_follow_an_optional_element: diag(1257, ts.DiagnosticCategory.Error, "A_required_element_cannot_follow_an_optional_element_1257", "A required element cannot follow an optional element."),
+        Definite_assignment_assertions_can_only_be_used_along_with_a_type_annotation: diag(1258, ts.DiagnosticCategory.Error, "Definite_assignment_assertions_can_only_be_used_along_with_a_type_annotation_1258", "Definite assignment assertions can only be used along with a type annotation."),
+        Module_0_can_only_be_default_imported_using_the_1_flag: diag(1259, ts.DiagnosticCategory.Error, "Module_0_can_only_be_default_imported_using_the_1_flag_1259", "Module '{0}' can only be default-imported using the '{1}' flag"),
+        Keywords_cannot_contain_escape_characters: diag(1260, ts.DiagnosticCategory.Error, "Keywords_cannot_contain_escape_characters_1260", "Keywords cannot contain escape characters."),
+        Already_included_file_name_0_differs_from_file_name_1_only_in_casing: diag(1261, ts.DiagnosticCategory.Error, "Already_included_file_name_0_differs_from_file_name_1_only_in_casing_1261", "Already included file name '{0}' differs from file name '{1}' only in casing."),
+        with_statements_are_not_allowed_in_an_async_function_block: diag(1300, ts.DiagnosticCategory.Error, "with_statements_are_not_allowed_in_an_async_function_block_1300", "'with' statements are not allowed in an async function block."),
+        await_expressions_are_only_allowed_within_async_functions_and_at_the_top_levels_of_modules: diag(1308, ts.DiagnosticCategory.Error, "await_expressions_are_only_allowed_within_async_functions_and_at_the_top_levels_of_modules_1308", "'await' expressions are only allowed within async functions and at the top levels of modules."),
+        can_only_be_used_in_an_object_literal_property_inside_a_destructuring_assignment: diag(1312, ts.DiagnosticCategory.Error, "can_only_be_used_in_an_object_literal_property_inside_a_destructuring_assignment_1312", "'=' can only be used in an object literal property inside a destructuring assignment."),
+        The_body_of_an_if_statement_cannot_be_the_empty_statement: diag(1313, ts.DiagnosticCategory.Error, "The_body_of_an_if_statement_cannot_be_the_empty_statement_1313", "The body of an 'if' statement cannot be the empty statement."),
+        Global_module_exports_may_only_appear_in_module_files: diag(1314, ts.DiagnosticCategory.Error, "Global_module_exports_may_only_appear_in_module_files_1314", "Global module exports may only appear in module files."),
+        Global_module_exports_may_only_appear_in_declaration_files: diag(1315, ts.DiagnosticCategory.Error, "Global_module_exports_may_only_appear_in_declaration_files_1315", "Global module exports may only appear in declaration files."),
+        Global_module_exports_may_only_appear_at_top_level: diag(1316, ts.DiagnosticCategory.Error, "Global_module_exports_may_only_appear_at_top_level_1316", "Global module exports may only appear at top level."),
+        A_parameter_property_cannot_be_declared_using_a_rest_parameter: diag(1317, ts.DiagnosticCategory.Error, "A_parameter_property_cannot_be_declared_using_a_rest_parameter_1317", "A parameter property cannot be declared using a rest parameter."),
+        An_abstract_accessor_cannot_have_an_implementation: diag(1318, ts.DiagnosticCategory.Error, "An_abstract_accessor_cannot_have_an_implementation_1318", "An abstract accessor cannot have an implementation."),
+        A_default_export_can_only_be_used_in_an_ECMAScript_style_module: diag(1319, ts.DiagnosticCategory.Error, "A_default_export_can_only_be_used_in_an_ECMAScript_style_module_1319", "A default export can only be used in an ECMAScript-style module."),
+        Type_of_await_operand_must_either_be_a_valid_promise_or_must_not_contain_a_callable_then_member: diag(1320, ts.DiagnosticCategory.Error, "Type_of_await_operand_must_either_be_a_valid_promise_or_must_not_contain_a_callable_then_member_1320", "Type of 'await' operand must either be a valid promise or must not contain a callable 'then' member."),
+        Type_of_yield_operand_in_an_async_generator_must_either_be_a_valid_promise_or_must_not_contain_a_callable_then_member: diag(1321, ts.DiagnosticCategory.Error, "Type_of_yield_operand_in_an_async_generator_must_either_be_a_valid_promise_or_must_not_contain_a_cal_1321", "Type of 'yield' operand in an async generator must either be a valid promise or must not contain a callable 'then' member."),
+        Type_of_iterated_elements_of_a_yield_Asterisk_operand_must_either_be_a_valid_promise_or_must_not_contain_a_callable_then_member: diag(1322, ts.DiagnosticCategory.Error, "Type_of_iterated_elements_of_a_yield_Asterisk_operand_must_either_be_a_valid_promise_or_must_not_con_1322", "Type of iterated elements of a 'yield*' operand must either be a valid promise or must not contain a callable 'then' member."),
+        Dynamic_imports_are_only_supported_when_the_module_flag_is_set_to_es2020_esnext_commonjs_amd_system_or_umd: diag(1323, ts.DiagnosticCategory.Error, "Dynamic_imports_are_only_supported_when_the_module_flag_is_set_to_es2020_esnext_commonjs_amd_system__1323", "Dynamic imports are only supported when the '--module' flag is set to 'es2020', 'esnext', 'commonjs', 'amd', 'system', or 'umd'."),
+        Dynamic_import_must_have_one_specifier_as_an_argument: diag(1324, ts.DiagnosticCategory.Error, "Dynamic_import_must_have_one_specifier_as_an_argument_1324", "Dynamic import must have one specifier as an argument."),
+        Specifier_of_dynamic_import_cannot_be_spread_element: diag(1325, ts.DiagnosticCategory.Error, "Specifier_of_dynamic_import_cannot_be_spread_element_1325", "Specifier of dynamic import cannot be spread element."),
+        Dynamic_import_cannot_have_type_arguments: diag(1326, ts.DiagnosticCategory.Error, "Dynamic_import_cannot_have_type_arguments_1326", "Dynamic import cannot have type arguments"),
+        String_literal_with_double_quotes_expected: diag(1327, ts.DiagnosticCategory.Error, "String_literal_with_double_quotes_expected_1327", "String literal with double quotes expected."),
+        Property_value_can_only_be_string_literal_numeric_literal_true_false_null_object_literal_or_array_literal: diag(1328, ts.DiagnosticCategory.Error, "Property_value_can_only_be_string_literal_numeric_literal_true_false_null_object_literal_or_array_li_1328", "Property value can only be string literal, numeric literal, 'true', 'false', 'null', object literal or array literal."),
+        _0_accepts_too_few_arguments_to_be_used_as_a_decorator_here_Did_you_mean_to_call_it_first_and_write_0: diag(1329, ts.DiagnosticCategory.Error, "_0_accepts_too_few_arguments_to_be_used_as_a_decorator_here_Did_you_mean_to_call_it_first_and_write__1329", "'{0}' accepts too few arguments to be used as a decorator here. Did you mean to call it first and write '@{0}()'?"),
+        A_property_of_an_interface_or_type_literal_whose_type_is_a_unique_symbol_type_must_be_readonly: diag(1330, ts.DiagnosticCategory.Error, "A_property_of_an_interface_or_type_literal_whose_type_is_a_unique_symbol_type_must_be_readonly_1330", "A property of an interface or type literal whose type is a 'unique symbol' type must be 'readonly'."),
+        A_property_of_a_class_whose_type_is_a_unique_symbol_type_must_be_both_static_and_readonly: diag(1331, ts.DiagnosticCategory.Error, "A_property_of_a_class_whose_type_is_a_unique_symbol_type_must_be_both_static_and_readonly_1331", "A property of a class whose type is a 'unique symbol' type must be both 'static' and 'readonly'."),
+        A_variable_whose_type_is_a_unique_symbol_type_must_be_const: diag(1332, ts.DiagnosticCategory.Error, "A_variable_whose_type_is_a_unique_symbol_type_must_be_const_1332", "A variable whose type is a 'unique symbol' type must be 'const'."),
+        unique_symbol_types_may_not_be_used_on_a_variable_declaration_with_a_binding_name: diag(1333, ts.DiagnosticCategory.Error, "unique_symbol_types_may_not_be_used_on_a_variable_declaration_with_a_binding_name_1333", "'unique symbol' types may not be used on a variable declaration with a binding name."),
+        unique_symbol_types_are_only_allowed_on_variables_in_a_variable_statement: diag(1334, ts.DiagnosticCategory.Error, "unique_symbol_types_are_only_allowed_on_variables_in_a_variable_statement_1334", "'unique symbol' types are only allowed on variables in a variable statement."),
+        unique_symbol_types_are_not_allowed_here: diag(1335, ts.DiagnosticCategory.Error, "unique_symbol_types_are_not_allowed_here_1335", "'unique symbol' types are not allowed here."),
+        An_index_signature_parameter_type_cannot_be_a_type_alias_Consider_writing_0_Colon_1_Colon_2_instead: diag(1336, ts.DiagnosticCategory.Error, "An_index_signature_parameter_type_cannot_be_a_type_alias_Consider_writing_0_Colon_1_Colon_2_instead_1336", "An index signature parameter type cannot be a type alias. Consider writing '[{0}: {1}]: {2}' instead."),
+        An_index_signature_parameter_type_cannot_be_a_union_type_Consider_using_a_mapped_object_type_instead: diag(1337, ts.DiagnosticCategory.Error, "An_index_signature_parameter_type_cannot_be_a_union_type_Consider_using_a_mapped_object_type_instead_1337", "An index signature parameter type cannot be a union type. Consider using a mapped object type instead."),
+        infer_declarations_are_only_permitted_in_the_extends_clause_of_a_conditional_type: diag(1338, ts.DiagnosticCategory.Error, "infer_declarations_are_only_permitted_in_the_extends_clause_of_a_conditional_type_1338", "'infer' declarations are only permitted in the 'extends' clause of a conditional type."),
+        Module_0_does_not_refer_to_a_value_but_is_used_as_a_value_here: diag(1339, ts.DiagnosticCategory.Error, "Module_0_does_not_refer_to_a_value_but_is_used_as_a_value_here_1339", "Module '{0}' does not refer to a value, but is used as a value here."),
+        Module_0_does_not_refer_to_a_type_but_is_used_as_a_type_here_Did_you_mean_typeof_import_0: diag(1340, ts.DiagnosticCategory.Error, "Module_0_does_not_refer_to_a_type_but_is_used_as_a_type_here_Did_you_mean_typeof_import_0_1340", "Module '{0}' does not refer to a type, but is used as a type here. Did you mean 'typeof import('{0}')'?"),
+        Type_arguments_cannot_be_used_here: diag(1342, ts.DiagnosticCategory.Error, "Type_arguments_cannot_be_used_here_1342", "Type arguments cannot be used here."),
+        The_import_meta_meta_property_is_only_allowed_when_the_module_option_is_esnext_or_system: diag(1343, ts.DiagnosticCategory.Error, "The_import_meta_meta_property_is_only_allowed_when_the_module_option_is_esnext_or_system_1343", "The 'import.meta' meta-property is only allowed when the '--module' option is 'esnext' or 'system'."),
+        A_label_is_not_allowed_here: diag(1344, ts.DiagnosticCategory.Error, "A_label_is_not_allowed_here_1344", "'A label is not allowed here."),
+        An_expression_of_type_void_cannot_be_tested_for_truthiness: diag(1345, ts.DiagnosticCategory.Error, "An_expression_of_type_void_cannot_be_tested_for_truthiness_1345", "An expression of type 'void' cannot be tested for truthiness"),
+        This_parameter_is_not_allowed_with_use_strict_directive: diag(1346, ts.DiagnosticCategory.Error, "This_parameter_is_not_allowed_with_use_strict_directive_1346", "This parameter is not allowed with 'use strict' directive."),
+        use_strict_directive_cannot_be_used_with_non_simple_parameter_list: diag(1347, ts.DiagnosticCategory.Error, "use_strict_directive_cannot_be_used_with_non_simple_parameter_list_1347", "'use strict' directive cannot be used with non-simple parameter list."),
+        Non_simple_parameter_declared_here: diag(1348, ts.DiagnosticCategory.Error, "Non_simple_parameter_declared_here_1348", "Non-simple parameter declared here."),
+        use_strict_directive_used_here: diag(1349, ts.DiagnosticCategory.Error, "use_strict_directive_used_here_1349", "'use strict' directive used here."),
+        Print_the_final_configuration_instead_of_building: diag(1350, ts.DiagnosticCategory.Message, "Print_the_final_configuration_instead_of_building_1350", "Print the final configuration instead of building."),
+        An_identifier_or_keyword_cannot_immediately_follow_a_numeric_literal: diag(1351, ts.DiagnosticCategory.Error, "An_identifier_or_keyword_cannot_immediately_follow_a_numeric_literal_1351", "An identifier or keyword cannot immediately follow a numeric literal."),
+        A_bigint_literal_cannot_use_exponential_notation: diag(1352, ts.DiagnosticCategory.Error, "A_bigint_literal_cannot_use_exponential_notation_1352", "A bigint literal cannot use exponential notation."),
+        A_bigint_literal_must_be_an_integer: diag(1353, ts.DiagnosticCategory.Error, "A_bigint_literal_must_be_an_integer_1353", "A bigint literal must be an integer."),
+        readonly_type_modifier_is_only_permitted_on_array_and_tuple_literal_types: diag(1354, ts.DiagnosticCategory.Error, "readonly_type_modifier_is_only_permitted_on_array_and_tuple_literal_types_1354", "'readonly' type modifier is only permitted on array and tuple literal types."),
+        A_const_assertions_can_only_be_applied_to_references_to_enum_members_or_string_number_boolean_array_or_object_literals: diag(1355, ts.DiagnosticCategory.Error, "A_const_assertions_can_only_be_applied_to_references_to_enum_members_or_string_number_boolean_array__1355", "A 'const' assertions can only be applied to references to enum members, or string, number, boolean, array, or object literals."),
+        Did_you_mean_to_mark_this_function_as_async: diag(1356, ts.DiagnosticCategory.Error, "Did_you_mean_to_mark_this_function_as_async_1356", "Did you mean to mark this function as 'async'?"),
+        An_enum_member_name_must_be_followed_by_a_or: diag(1357, ts.DiagnosticCategory.Error, "An_enum_member_name_must_be_followed_by_a_or_1357", "An enum member name must be followed by a ',', '=', or '}'."),
+        Tagged_template_expressions_are_not_permitted_in_an_optional_chain: diag(1358, ts.DiagnosticCategory.Error, "Tagged_template_expressions_are_not_permitted_in_an_optional_chain_1358", "Tagged template expressions are not permitted in an optional chain."),
+        Identifier_expected_0_is_a_reserved_word_that_cannot_be_used_here: diag(1359, ts.DiagnosticCategory.Error, "Identifier_expected_0_is_a_reserved_word_that_cannot_be_used_here_1359", "Identifier expected. '{0}' is a reserved word that cannot be used here."),
+        Did_you_mean_to_parenthesize_this_function_type: diag(1360, ts.DiagnosticCategory.Error, "Did_you_mean_to_parenthesize_this_function_type_1360", "Did you mean to parenthesize this function type?"),
+        _0_cannot_be_used_as_a_value_because_it_was_imported_using_import_type: diag(1361, ts.DiagnosticCategory.Error, "_0_cannot_be_used_as_a_value_because_it_was_imported_using_import_type_1361", "'{0}' cannot be used as a value because it was imported using 'import type'."),
+        _0_cannot_be_used_as_a_value_because_it_was_exported_using_export_type: diag(1362, ts.DiagnosticCategory.Error, "_0_cannot_be_used_as_a_value_because_it_was_exported_using_export_type_1362", "'{0}' cannot be used as a value because it was exported using 'export type'."),
+        A_type_only_import_can_specify_a_default_import_or_named_bindings_but_not_both: diag(1363, ts.DiagnosticCategory.Error, "A_type_only_import_can_specify_a_default_import_or_named_bindings_but_not_both_1363", "A type-only import can specify a default import or named bindings, but not both."),
+        Convert_to_type_only_export: diag(1364, ts.DiagnosticCategory.Message, "Convert_to_type_only_export_1364", "Convert to type-only export"),
+        Convert_all_re_exported_types_to_type_only_exports: diag(1365, ts.DiagnosticCategory.Message, "Convert_all_re_exported_types_to_type_only_exports_1365", "Convert all re-exported types to type-only exports"),
+        Split_into_two_separate_import_declarations: diag(1366, ts.DiagnosticCategory.Message, "Split_into_two_separate_import_declarations_1366", "Split into two separate import declarations"),
+        Split_all_invalid_type_only_imports: diag(1367, ts.DiagnosticCategory.Message, "Split_all_invalid_type_only_imports_1367", "Split all invalid type-only imports"),
+        Specify_emit_Slashchecking_behavior_for_imports_that_are_only_used_for_types: diag(1368, ts.DiagnosticCategory.Message, "Specify_emit_Slashchecking_behavior_for_imports_that_are_only_used_for_types_1368", "Specify emit/checking behavior for imports that are only used for types"),
+        Did_you_mean_0: diag(1369, ts.DiagnosticCategory.Message, "Did_you_mean_0_1369", "Did you mean '{0}'?"),
+        Only_ECMAScript_imports_may_use_import_type: diag(1370, ts.DiagnosticCategory.Error, "Only_ECMAScript_imports_may_use_import_type_1370", "Only ECMAScript imports may use 'import type'."),
+        This_import_is_never_used_as_a_value_and_must_use_import_type_because_the_importsNotUsedAsValues_is_set_to_error: diag(1371, ts.DiagnosticCategory.Error, "This_import_is_never_used_as_a_value_and_must_use_import_type_because_the_importsNotUsedAsValues_is__1371", "This import is never used as a value and must use 'import type' because the 'importsNotUsedAsValues' is set to 'error'."),
+        Convert_to_type_only_import: diag(1373, ts.DiagnosticCategory.Message, "Convert_to_type_only_import_1373", "Convert to type-only import"),
+        Convert_all_imports_not_used_as_a_value_to_type_only_imports: diag(1374, ts.DiagnosticCategory.Message, "Convert_all_imports_not_used_as_a_value_to_type_only_imports_1374", "Convert all imports not used as a value to type-only imports"),
+        await_expressions_are_only_allowed_at_the_top_level_of_a_file_when_that_file_is_a_module_but_this_file_has_no_imports_or_exports_Consider_adding_an_empty_export_to_make_this_file_a_module: diag(1375, ts.DiagnosticCategory.Error, "await_expressions_are_only_allowed_at_the_top_level_of_a_file_when_that_file_is_a_module_but_this_fi_1375", "'await' expressions are only allowed at the top level of a file when that file is a module, but this file has no imports or exports. Consider adding an empty 'export {}' to make this file a module."),
+        _0_was_imported_here: diag(1376, ts.DiagnosticCategory.Message, "_0_was_imported_here_1376", "'{0}' was imported here."),
+        _0_was_exported_here: diag(1377, ts.DiagnosticCategory.Message, "_0_was_exported_here_1377", "'{0}' was exported here."),
+        Top_level_await_expressions_are_only_allowed_when_the_module_option_is_set_to_esnext_or_system_and_the_target_option_is_set_to_es2017_or_higher: diag(1378, ts.DiagnosticCategory.Error, "Top_level_await_expressions_are_only_allowed_when_the_module_option_is_set_to_esnext_or_system_and_t_1378", "Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher."),
+        An_import_alias_cannot_reference_a_declaration_that_was_exported_using_export_type: diag(1379, ts.DiagnosticCategory.Error, "An_import_alias_cannot_reference_a_declaration_that_was_exported_using_export_type_1379", "An import alias cannot reference a declaration that was exported using 'export type'."),
+        An_import_alias_cannot_reference_a_declaration_that_was_imported_using_import_type: diag(1380, ts.DiagnosticCategory.Error, "An_import_alias_cannot_reference_a_declaration_that_was_imported_using_import_type_1380", "An import alias cannot reference a declaration that was imported using 'import type'."),
+        Unexpected_token_Did_you_mean_or_rbrace: diag(1381, ts.DiagnosticCategory.Error, "Unexpected_token_Did_you_mean_or_rbrace_1381", "Unexpected token. Did you mean `{'}'}` or `&rbrace;`?"),
+        Unexpected_token_Did_you_mean_or_gt: diag(1382, ts.DiagnosticCategory.Error, "Unexpected_token_Did_you_mean_or_gt_1382", "Unexpected token. Did you mean `{'>'}` or `&gt;`?"),
+        Only_named_exports_may_use_export_type: diag(1383, ts.DiagnosticCategory.Error, "Only_named_exports_may_use_export_type_1383", "Only named exports may use 'export type'."),
+        A_new_expression_with_type_arguments_must_always_be_followed_by_a_parenthesized_argument_list: diag(1384, ts.DiagnosticCategory.Error, "A_new_expression_with_type_arguments_must_always_be_followed_by_a_parenthesized_argument_list_1384", "A 'new' expression with type arguments must always be followed by a parenthesized argument list."),
+        The_types_of_0_are_incompatible_between_these_types: diag(2200, ts.DiagnosticCategory.Error, "The_types_of_0_are_incompatible_between_these_types_2200", "The types of '{0}' are incompatible between these types."),
+        The_types_returned_by_0_are_incompatible_between_these_types: diag(2201, ts.DiagnosticCategory.Error, "The_types_returned_by_0_are_incompatible_between_these_types_2201", "The types returned by '{0}' are incompatible between these types."),
+        Call_signature_return_types_0_and_1_are_incompatible: diag(2202, ts.DiagnosticCategory.Error, "Call_signature_return_types_0_and_1_are_incompatible_2202", "Call signature return types '{0}' and '{1}' are incompatible.", undefined, true),
+        Construct_signature_return_types_0_and_1_are_incompatible: diag(2203, ts.DiagnosticCategory.Error, "Construct_signature_return_types_0_and_1_are_incompatible_2203", "Construct signature return types '{0}' and '{1}' are incompatible.", undefined, true),
+        Call_signatures_with_no_arguments_have_incompatible_return_types_0_and_1: diag(2204, ts.DiagnosticCategory.Error, "Call_signatures_with_no_arguments_have_incompatible_return_types_0_and_1_2204", "Call signatures with no arguments have incompatible return types '{0}' and '{1}'.", undefined, true),
+        Construct_signatures_with_no_arguments_have_incompatible_return_types_0_and_1: diag(2205, ts.DiagnosticCategory.Error, "Construct_signatures_with_no_arguments_have_incompatible_return_types_0_and_1_2205", "Construct signatures with no arguments have incompatible return types '{0}' and '{1}'.", undefined, true),
+        Duplicate_identifier_0: diag(2300, ts.DiagnosticCategory.Error, "Duplicate_identifier_0_2300", "Duplicate identifier '{0}'."),
+        Initializer_of_instance_member_variable_0_cannot_reference_identifier_1_declared_in_the_constructor: diag(2301, ts.DiagnosticCategory.Error, "Initializer_of_instance_member_variable_0_cannot_reference_identifier_1_declared_in_the_constructor_2301", "Initializer of instance member variable '{0}' cannot reference identifier '{1}' declared in the constructor."),
+        Static_members_cannot_reference_class_type_parameters: diag(2302, ts.DiagnosticCategory.Error, "Static_members_cannot_reference_class_type_parameters_2302", "Static members cannot reference class type parameters."),
+        Circular_definition_of_import_alias_0: diag(2303, ts.DiagnosticCategory.Error, "Circular_definition_of_import_alias_0_2303", "Circular definition of import alias '{0}'."),
+        Cannot_find_name_0: diag(2304, ts.DiagnosticCategory.Error, "Cannot_find_name_0_2304", "Cannot find name '{0}'."),
+        Module_0_has_no_exported_member_1: diag(2305, ts.DiagnosticCategory.Error, "Module_0_has_no_exported_member_1_2305", "Module '{0}' has no exported member '{1}'."),
+        File_0_is_not_a_module: diag(2306, ts.DiagnosticCategory.Error, "File_0_is_not_a_module_2306", "File '{0}' is not a module."),
+        Cannot_find_module_0_or_its_corresponding_type_declarations: diag(2307, ts.DiagnosticCategory.Error, "Cannot_find_module_0_or_its_corresponding_type_declarations_2307", "Cannot find module '{0}' or its corresponding type declarations."),
+        Module_0_has_already_exported_a_member_named_1_Consider_explicitly_re_exporting_to_resolve_the_ambiguity: diag(2308, ts.DiagnosticCategory.Error, "Module_0_has_already_exported_a_member_named_1_Consider_explicitly_re_exporting_to_resolve_the_ambig_2308", "Module {0} has already exported a member named '{1}'. Consider explicitly re-exporting to resolve the ambiguity."),
+        An_export_assignment_cannot_be_used_in_a_module_with_other_exported_elements: diag(2309, ts.DiagnosticCategory.Error, "An_export_assignment_cannot_be_used_in_a_module_with_other_exported_elements_2309", "An export assignment cannot be used in a module with other exported elements."),
+        Type_0_recursively_references_itself_as_a_base_type: diag(2310, ts.DiagnosticCategory.Error, "Type_0_recursively_references_itself_as_a_base_type_2310", "Type '{0}' recursively references itself as a base type."),
+        A_class_may_only_extend_another_class: diag(2311, ts.DiagnosticCategory.Error, "A_class_may_only_extend_another_class_2311", "A class may only extend another class."),
+        An_interface_can_only_extend_an_object_type_or_intersection_of_object_types_with_statically_known_members: diag(2312, ts.DiagnosticCategory.Error, "An_interface_can_only_extend_an_object_type_or_intersection_of_object_types_with_statically_known_me_2312", "An interface can only extend an object type or intersection of object types with statically known members."),
+        Type_parameter_0_has_a_circular_constraint: diag(2313, ts.DiagnosticCategory.Error, "Type_parameter_0_has_a_circular_constraint_2313", "Type parameter '{0}' has a circular constraint."),
+        Generic_type_0_requires_1_type_argument_s: diag(2314, ts.DiagnosticCategory.Error, "Generic_type_0_requires_1_type_argument_s_2314", "Generic type '{0}' requires {1} type argument(s)."),
+        Type_0_is_not_generic: diag(2315, ts.DiagnosticCategory.Error, "Type_0_is_not_generic_2315", "Type '{0}' is not generic."),
+        Global_type_0_must_be_a_class_or_interface_type: diag(2316, ts.DiagnosticCategory.Error, "Global_type_0_must_be_a_class_or_interface_type_2316", "Global type '{0}' must be a class or interface type."),
+        Global_type_0_must_have_1_type_parameter_s: diag(2317, ts.DiagnosticCategory.Error, "Global_type_0_must_have_1_type_parameter_s_2317", "Global type '{0}' must have {1} type parameter(s)."),
+        Cannot_find_global_type_0: diag(2318, ts.DiagnosticCategory.Error, "Cannot_find_global_type_0_2318", "Cannot find global type '{0}'."),
+        Named_property_0_of_types_1_and_2_are_not_identical: diag(2319, ts.DiagnosticCategory.Error, "Named_property_0_of_types_1_and_2_are_not_identical_2319", "Named property '{0}' of types '{1}' and '{2}' are not identical."),
+        Interface_0_cannot_simultaneously_extend_types_1_and_2: diag(2320, ts.DiagnosticCategory.Error, "Interface_0_cannot_simultaneously_extend_types_1_and_2_2320", "Interface '{0}' cannot simultaneously extend types '{1}' and '{2}'."),
+        Excessive_stack_depth_comparing_types_0_and_1: diag(2321, ts.DiagnosticCategory.Error, "Excessive_stack_depth_comparing_types_0_and_1_2321", "Excessive stack depth comparing types '{0}' and '{1}'."),
+        Type_0_is_not_assignable_to_type_1: diag(2322, ts.DiagnosticCategory.Error, "Type_0_is_not_assignable_to_type_1_2322", "Type '{0}' is not assignable to type '{1}'."),
+        Cannot_redeclare_exported_variable_0: diag(2323, ts.DiagnosticCategory.Error, "Cannot_redeclare_exported_variable_0_2323", "Cannot redeclare exported variable '{0}'."),
+        Property_0_is_missing_in_type_1: diag(2324, ts.DiagnosticCategory.Error, "Property_0_is_missing_in_type_1_2324", "Property '{0}' is missing in type '{1}'."),
+        Property_0_is_private_in_type_1_but_not_in_type_2: diag(2325, ts.DiagnosticCategory.Error, "Property_0_is_private_in_type_1_but_not_in_type_2_2325", "Property '{0}' is private in type '{1}' but not in type '{2}'."),
+        Types_of_property_0_are_incompatible: diag(2326, ts.DiagnosticCategory.Error, "Types_of_property_0_are_incompatible_2326", "Types of property '{0}' are incompatible."),
+        Property_0_is_optional_in_type_1_but_required_in_type_2: diag(2327, ts.DiagnosticCategory.Error, "Property_0_is_optional_in_type_1_but_required_in_type_2_2327", "Property '{0}' is optional in type '{1}' but required in type '{2}'."),
+        Types_of_parameters_0_and_1_are_incompatible: diag(2328, ts.DiagnosticCategory.Error, "Types_of_parameters_0_and_1_are_incompatible_2328", "Types of parameters '{0}' and '{1}' are incompatible."),
+        Index_signature_is_missing_in_type_0: diag(2329, ts.DiagnosticCategory.Error, "Index_signature_is_missing_in_type_0_2329", "Index signature is missing in type '{0}'."),
+        Index_signatures_are_incompatible: diag(2330, ts.DiagnosticCategory.Error, "Index_signatures_are_incompatible_2330", "Index signatures are incompatible."),
+        this_cannot_be_referenced_in_a_module_or_namespace_body: diag(2331, ts.DiagnosticCategory.Error, "this_cannot_be_referenced_in_a_module_or_namespace_body_2331", "'this' cannot be referenced in a module or namespace body."),
+        this_cannot_be_referenced_in_current_location: diag(2332, ts.DiagnosticCategory.Error, "this_cannot_be_referenced_in_current_location_2332", "'this' cannot be referenced in current location."),
+        this_cannot_be_referenced_in_constructor_arguments: diag(2333, ts.DiagnosticCategory.Error, "this_cannot_be_referenced_in_constructor_arguments_2333", "'this' cannot be referenced in constructor arguments."),
+        this_cannot_be_referenced_in_a_static_property_initializer: diag(2334, ts.DiagnosticCategory.Error, "this_cannot_be_referenced_in_a_static_property_initializer_2334", "'this' cannot be referenced in a static property initializer."),
+        super_can_only_be_referenced_in_a_derived_class: diag(2335, ts.DiagnosticCategory.Error, "super_can_only_be_referenced_in_a_derived_class_2335", "'super' can only be referenced in a derived class."),
+        super_cannot_be_referenced_in_constructor_arguments: diag(2336, ts.DiagnosticCategory.Error, "super_cannot_be_referenced_in_constructor_arguments_2336", "'super' cannot be referenced in constructor arguments."),
+        Super_calls_are_not_permitted_outside_constructors_or_in_nested_functions_inside_constructors: diag(2337, ts.DiagnosticCategory.Error, "Super_calls_are_not_permitted_outside_constructors_or_in_nested_functions_inside_constructors_2337", "Super calls are not permitted outside constructors or in nested functions inside constructors."),
+        super_property_access_is_permitted_only_in_a_constructor_member_function_or_member_accessor_of_a_derived_class: diag(2338, ts.DiagnosticCategory.Error, "super_property_access_is_permitted_only_in_a_constructor_member_function_or_member_accessor_of_a_der_2338", "'super' property access is permitted only in a constructor, member function, or member accessor of a derived class."),
+        Property_0_does_not_exist_on_type_1: diag(2339, ts.DiagnosticCategory.Error, "Property_0_does_not_exist_on_type_1_2339", "Property '{0}' does not exist on type '{1}'."),
+        Only_public_and_protected_methods_of_the_base_class_are_accessible_via_the_super_keyword: diag(2340, ts.DiagnosticCategory.Error, "Only_public_and_protected_methods_of_the_base_class_are_accessible_via_the_super_keyword_2340", "Only public and protected methods of the base class are accessible via the 'super' keyword."),
+        Property_0_is_private_and_only_accessible_within_class_1: diag(2341, ts.DiagnosticCategory.Error, "Property_0_is_private_and_only_accessible_within_class_1_2341", "Property '{0}' is private and only accessible within class '{1}'."),
+        An_index_expression_argument_must_be_of_type_string_number_symbol_or_any: diag(2342, ts.DiagnosticCategory.Error, "An_index_expression_argument_must_be_of_type_string_number_symbol_or_any_2342", "An index expression argument must be of type 'string', 'number', 'symbol', or 'any'."),
+        This_syntax_requires_an_imported_helper_named_1_which_does_not_exist_in_0_Consider_upgrading_your_version_of_0: diag(2343, ts.DiagnosticCategory.Error, "This_syntax_requires_an_imported_helper_named_1_which_does_not_exist_in_0_Consider_upgrading_your_ve_2343", "This syntax requires an imported helper named '{1}' which does not exist in '{0}'. Consider upgrading your version of '{0}'."),
+        Type_0_does_not_satisfy_the_constraint_1: diag(2344, ts.DiagnosticCategory.Error, "Type_0_does_not_satisfy_the_constraint_1_2344", "Type '{0}' does not satisfy the constraint '{1}'."),
+        Argument_of_type_0_is_not_assignable_to_parameter_of_type_1: diag(2345, ts.DiagnosticCategory.Error, "Argument_of_type_0_is_not_assignable_to_parameter_of_type_1_2345", "Argument of type '{0}' is not assignable to parameter of type '{1}'."),
+        Call_target_does_not_contain_any_signatures: diag(2346, ts.DiagnosticCategory.Error, "Call_target_does_not_contain_any_signatures_2346", "Call target does not contain any signatures."),
+        Untyped_function_calls_may_not_accept_type_arguments: diag(2347, ts.DiagnosticCategory.Error, "Untyped_function_calls_may_not_accept_type_arguments_2347", "Untyped function calls may not accept type arguments."),
+        Value_of_type_0_is_not_callable_Did_you_mean_to_include_new: diag(2348, ts.DiagnosticCategory.Error, "Value_of_type_0_is_not_callable_Did_you_mean_to_include_new_2348", "Value of type '{0}' is not callable. Did you mean to include 'new'?"),
+        This_expression_is_not_callable: diag(2349, ts.DiagnosticCategory.Error, "This_expression_is_not_callable_2349", "This expression is not callable."),
+        Only_a_void_function_can_be_called_with_the_new_keyword: diag(2350, ts.DiagnosticCategory.Error, "Only_a_void_function_can_be_called_with_the_new_keyword_2350", "Only a void function can be called with the 'new' keyword."),
+        This_expression_is_not_constructable: diag(2351, ts.DiagnosticCategory.Error, "This_expression_is_not_constructable_2351", "This expression is not constructable."),
+        Conversion_of_type_0_to_type_1_may_be_a_mistake_because_neither_type_sufficiently_overlaps_with_the_other_If_this_was_intentional_convert_the_expression_to_unknown_first: diag(2352, ts.DiagnosticCategory.Error, "Conversion_of_type_0_to_type_1_may_be_a_mistake_because_neither_type_sufficiently_overlaps_with_the__2352", "Conversion of type '{0}' to type '{1}' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first."),
+        Object_literal_may_only_specify_known_properties_and_0_does_not_exist_in_type_1: diag(2353, ts.DiagnosticCategory.Error, "Object_literal_may_only_specify_known_properties_and_0_does_not_exist_in_type_1_2353", "Object literal may only specify known properties, and '{0}' does not exist in type '{1}'."),
+        This_syntax_requires_an_imported_helper_but_module_0_cannot_be_found: diag(2354, ts.DiagnosticCategory.Error, "This_syntax_requires_an_imported_helper_but_module_0_cannot_be_found_2354", "This syntax requires an imported helper but module '{0}' cannot be found."),
+        A_function_whose_declared_type_is_neither_void_nor_any_must_return_a_value: diag(2355, ts.DiagnosticCategory.Error, "A_function_whose_declared_type_is_neither_void_nor_any_must_return_a_value_2355", "A function whose declared type is neither 'void' nor 'any' must return a value."),
+        An_arithmetic_operand_must_be_of_type_any_number_bigint_or_an_enum_type: diag(2356, ts.DiagnosticCategory.Error, "An_arithmetic_operand_must_be_of_type_any_number_bigint_or_an_enum_type_2356", "An arithmetic operand must be of type 'any', 'number', 'bigint' or an enum type."),
+        The_operand_of_an_increment_or_decrement_operator_must_be_a_variable_or_a_property_access: diag(2357, ts.DiagnosticCategory.Error, "The_operand_of_an_increment_or_decrement_operator_must_be_a_variable_or_a_property_access_2357", "The operand of an increment or decrement operator must be a variable or a property access."),
+        The_left_hand_side_of_an_instanceof_expression_must_be_of_type_any_an_object_type_or_a_type_parameter: diag(2358, ts.DiagnosticCategory.Error, "The_left_hand_side_of_an_instanceof_expression_must_be_of_type_any_an_object_type_or_a_type_paramete_2358", "The left-hand side of an 'instanceof' expression must be of type 'any', an object type or a type parameter."),
+        The_right_hand_side_of_an_instanceof_expression_must_be_of_type_any_or_of_a_type_assignable_to_the_Function_interface_type: diag(2359, ts.DiagnosticCategory.Error, "The_right_hand_side_of_an_instanceof_expression_must_be_of_type_any_or_of_a_type_assignable_to_the_F_2359", "The right-hand side of an 'instanceof' expression must be of type 'any' or of a type assignable to the 'Function' interface type."),
+        The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol: diag(2360, ts.DiagnosticCategory.Error, "The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol_2360", "The left-hand side of an 'in' expression must be of type 'any', 'string', 'number', or 'symbol'."),
+        The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter: diag(2361, ts.DiagnosticCategory.Error, "The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter_2361", "The right-hand side of an 'in' expression must be of type 'any', an object type or a type parameter."),
+        The_left_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_bigint_or_an_enum_type: diag(2362, ts.DiagnosticCategory.Error, "The_left_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_bigint_or_an_enum_type_2362", "The left-hand side of an arithmetic operation must be of type 'any', 'number', 'bigint' or an enum type."),
+        The_right_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_bigint_or_an_enum_type: diag(2363, ts.DiagnosticCategory.Error, "The_right_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_bigint_or_an_enum_type_2363", "The right-hand side of an arithmetic operation must be of type 'any', 'number', 'bigint' or an enum type."),
+        The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access: diag(2364, ts.DiagnosticCategory.Error, "The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access_2364", "The left-hand side of an assignment expression must be a variable or a property access."),
+        Operator_0_cannot_be_applied_to_types_1_and_2: diag(2365, ts.DiagnosticCategory.Error, "Operator_0_cannot_be_applied_to_types_1_and_2_2365", "Operator '{0}' cannot be applied to types '{1}' and '{2}'."),
+        Function_lacks_ending_return_statement_and_return_type_does_not_include_undefined: diag(2366, ts.DiagnosticCategory.Error, "Function_lacks_ending_return_statement_and_return_type_does_not_include_undefined_2366", "Function lacks ending return statement and return type does not include 'undefined'."),
+        This_condition_will_always_return_0_since_the_types_1_and_2_have_no_overlap: diag(2367, ts.DiagnosticCategory.Error, "This_condition_will_always_return_0_since_the_types_1_and_2_have_no_overlap_2367", "This condition will always return '{0}' since the types '{1}' and '{2}' have no overlap."),
+        Type_parameter_name_cannot_be_0: diag(2368, ts.DiagnosticCategory.Error, "Type_parameter_name_cannot_be_0_2368", "Type parameter name cannot be '{0}'."),
+        A_parameter_property_is_only_allowed_in_a_constructor_implementation: diag(2369, ts.DiagnosticCategory.Error, "A_parameter_property_is_only_allowed_in_a_constructor_implementation_2369", "A parameter property is only allowed in a constructor implementation."),
+        A_rest_parameter_must_be_of_an_array_type: diag(2370, ts.DiagnosticCategory.Error, "A_rest_parameter_must_be_of_an_array_type_2370", "A rest parameter must be of an array type."),
+        A_parameter_initializer_is_only_allowed_in_a_function_or_constructor_implementation: diag(2371, ts.DiagnosticCategory.Error, "A_parameter_initializer_is_only_allowed_in_a_function_or_constructor_implementation_2371", "A parameter initializer is only allowed in a function or constructor implementation."),
+        Parameter_0_cannot_reference_itself: diag(2372, ts.DiagnosticCategory.Error, "Parameter_0_cannot_reference_itself_2372", "Parameter '{0}' cannot reference itself."),
+        Parameter_0_cannot_reference_identifier_1_declared_after_it: diag(2373, ts.DiagnosticCategory.Error, "Parameter_0_cannot_reference_identifier_1_declared_after_it_2373", "Parameter '{0}' cannot reference identifier '{1}' declared after it."),
+        Duplicate_string_index_signature: diag(2374, ts.DiagnosticCategory.Error, "Duplicate_string_index_signature_2374", "Duplicate string index signature."),
+        Duplicate_number_index_signature: diag(2375, ts.DiagnosticCategory.Error, "Duplicate_number_index_signature_2375", "Duplicate number index signature."),
+        A_super_call_must_be_the_first_statement_in_the_constructor_when_a_class_contains_initialized_properties_parameter_properties_or_private_identifiers: diag(2376, ts.DiagnosticCategory.Error, "A_super_call_must_be_the_first_statement_in_the_constructor_when_a_class_contains_initialized_proper_2376", "A 'super' call must be the first statement in the constructor when a class contains initialized properties, parameter properties, or private identifiers."),
+        Constructors_for_derived_classes_must_contain_a_super_call: diag(2377, ts.DiagnosticCategory.Error, "Constructors_for_derived_classes_must_contain_a_super_call_2377", "Constructors for derived classes must contain a 'super' call."),
+        A_get_accessor_must_return_a_value: diag(2378, ts.DiagnosticCategory.Error, "A_get_accessor_must_return_a_value_2378", "A 'get' accessor must return a value."),
+        Getter_and_setter_accessors_do_not_agree_in_visibility: diag(2379, ts.DiagnosticCategory.Error, "Getter_and_setter_accessors_do_not_agree_in_visibility_2379", "Getter and setter accessors do not agree in visibility."),
+        get_and_set_accessor_must_have_the_same_type: diag(2380, ts.DiagnosticCategory.Error, "get_and_set_accessor_must_have_the_same_type_2380", "'get' and 'set' accessor must have the same type."),
+        A_signature_with_an_implementation_cannot_use_a_string_literal_type: diag(2381, ts.DiagnosticCategory.Error, "A_signature_with_an_implementation_cannot_use_a_string_literal_type_2381", "A signature with an implementation cannot use a string literal type."),
+        Specialized_overload_signature_is_not_assignable_to_any_non_specialized_signature: diag(2382, ts.DiagnosticCategory.Error, "Specialized_overload_signature_is_not_assignable_to_any_non_specialized_signature_2382", "Specialized overload signature is not assignable to any non-specialized signature."),
+        Overload_signatures_must_all_be_exported_or_non_exported: diag(2383, ts.DiagnosticCategory.Error, "Overload_signatures_must_all_be_exported_or_non_exported_2383", "Overload signatures must all be exported or non-exported."),
+        Overload_signatures_must_all_be_ambient_or_non_ambient: diag(2384, ts.DiagnosticCategory.Error, "Overload_signatures_must_all_be_ambient_or_non_ambient_2384", "Overload signatures must all be ambient or non-ambient."),
+        Overload_signatures_must_all_be_public_private_or_protected: diag(2385, ts.DiagnosticCategory.Error, "Overload_signatures_must_all_be_public_private_or_protected_2385", "Overload signatures must all be public, private or protected."),
+        Overload_signatures_must_all_be_optional_or_required: diag(2386, ts.DiagnosticCategory.Error, "Overload_signatures_must_all_be_optional_or_required_2386", "Overload signatures must all be optional or required."),
+        Function_overload_must_be_static: diag(2387, ts.DiagnosticCategory.Error, "Function_overload_must_be_static_2387", "Function overload must be static."),
+        Function_overload_must_not_be_static: diag(2388, ts.DiagnosticCategory.Error, "Function_overload_must_not_be_static_2388", "Function overload must not be static."),
+        Function_implementation_name_must_be_0: diag(2389, ts.DiagnosticCategory.Error, "Function_implementation_name_must_be_0_2389", "Function implementation name must be '{0}'."),
+        Constructor_implementation_is_missing: diag(2390, ts.DiagnosticCategory.Error, "Constructor_implementation_is_missing_2390", "Constructor implementation is missing."),
+        Function_implementation_is_missing_or_not_immediately_following_the_declaration: diag(2391, ts.DiagnosticCategory.Error, "Function_implementation_is_missing_or_not_immediately_following_the_declaration_2391", "Function implementation is missing or not immediately following the declaration."),
+        Multiple_constructor_implementations_are_not_allowed: diag(2392, ts.DiagnosticCategory.Error, "Multiple_constructor_implementations_are_not_allowed_2392", "Multiple constructor implementations are not allowed."),
+        Duplicate_function_implementation: diag(2393, ts.DiagnosticCategory.Error, "Duplicate_function_implementation_2393", "Duplicate function implementation."),
+        This_overload_signature_is_not_compatible_with_its_implementation_signature: diag(2394, ts.DiagnosticCategory.Error, "This_overload_signature_is_not_compatible_with_its_implementation_signature_2394", "This overload signature is not compatible with its implementation signature."),
+        Individual_declarations_in_merged_declaration_0_must_be_all_exported_or_all_local: diag(2395, ts.DiagnosticCategory.Error, "Individual_declarations_in_merged_declaration_0_must_be_all_exported_or_all_local_2395", "Individual declarations in merged declaration '{0}' must be all exported or all local."),
+        Duplicate_identifier_arguments_Compiler_uses_arguments_to_initialize_rest_parameters: diag(2396, ts.DiagnosticCategory.Error, "Duplicate_identifier_arguments_Compiler_uses_arguments_to_initialize_rest_parameters_2396", "Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters."),
+        Declaration_name_conflicts_with_built_in_global_identifier_0: diag(2397, ts.DiagnosticCategory.Error, "Declaration_name_conflicts_with_built_in_global_identifier_0_2397", "Declaration name conflicts with built-in global identifier '{0}'."),
+        constructor_cannot_be_used_as_a_parameter_property_name: diag(2398, ts.DiagnosticCategory.Error, "constructor_cannot_be_used_as_a_parameter_property_name_2398", "'constructor' cannot be used as a parameter property name."),
+        Duplicate_identifier_this_Compiler_uses_variable_declaration_this_to_capture_this_reference: diag(2399, ts.DiagnosticCategory.Error, "Duplicate_identifier_this_Compiler_uses_variable_declaration_this_to_capture_this_reference_2399", "Duplicate identifier '_this'. Compiler uses variable declaration '_this' to capture 'this' reference."),
+        Expression_resolves_to_variable_declaration_this_that_compiler_uses_to_capture_this_reference: diag(2400, ts.DiagnosticCategory.Error, "Expression_resolves_to_variable_declaration_this_that_compiler_uses_to_capture_this_reference_2400", "Expression resolves to variable declaration '_this' that compiler uses to capture 'this' reference."),
+        Duplicate_identifier_super_Compiler_uses_super_to_capture_base_class_reference: diag(2401, ts.DiagnosticCategory.Error, "Duplicate_identifier_super_Compiler_uses_super_to_capture_base_class_reference_2401", "Duplicate identifier '_super'. Compiler uses '_super' to capture base class reference."),
+        Expression_resolves_to_super_that_compiler_uses_to_capture_base_class_reference: diag(2402, ts.DiagnosticCategory.Error, "Expression_resolves_to_super_that_compiler_uses_to_capture_base_class_reference_2402", "Expression resolves to '_super' that compiler uses to capture base class reference."),
+        Subsequent_variable_declarations_must_have_the_same_type_Variable_0_must_be_of_type_1_but_here_has_type_2: diag(2403, ts.DiagnosticCategory.Error, "Subsequent_variable_declarations_must_have_the_same_type_Variable_0_must_be_of_type_1_but_here_has_t_2403", "Subsequent variable declarations must have the same type.  Variable '{0}' must be of type '{1}', but here has type '{2}'."),
+        The_left_hand_side_of_a_for_in_statement_cannot_use_a_type_annotation: diag(2404, ts.DiagnosticCategory.Error, "The_left_hand_side_of_a_for_in_statement_cannot_use_a_type_annotation_2404", "The left-hand side of a 'for...in' statement cannot use a type annotation."),
+        The_left_hand_side_of_a_for_in_statement_must_be_of_type_string_or_any: diag(2405, ts.DiagnosticCategory.Error, "The_left_hand_side_of_a_for_in_statement_must_be_of_type_string_or_any_2405", "The left-hand side of a 'for...in' statement must be of type 'string' or 'any'."),
+        The_left_hand_side_of_a_for_in_statement_must_be_a_variable_or_a_property_access: diag(2406, ts.DiagnosticCategory.Error, "The_left_hand_side_of_a_for_in_statement_must_be_a_variable_or_a_property_access_2406", "The left-hand side of a 'for...in' statement must be a variable or a property access."),
+        The_right_hand_side_of_a_for_in_statement_must_be_of_type_any_an_object_type_or_a_type_parameter_but_here_has_type_0: diag(2407, ts.DiagnosticCategory.Error, "The_right_hand_side_of_a_for_in_statement_must_be_of_type_any_an_object_type_or_a_type_parameter_but_2407", "The right-hand side of a 'for...in' statement must be of type 'any', an object type or a type parameter, but here has type '{0}'."),
+        Setters_cannot_return_a_value: diag(2408, ts.DiagnosticCategory.Error, "Setters_cannot_return_a_value_2408", "Setters cannot return a value."),
+        Return_type_of_constructor_signature_must_be_assignable_to_the_instance_type_of_the_class: diag(2409, ts.DiagnosticCategory.Error, "Return_type_of_constructor_signature_must_be_assignable_to_the_instance_type_of_the_class_2409", "Return type of constructor signature must be assignable to the instance type of the class."),
+        The_with_statement_is_not_supported_All_symbols_in_a_with_block_will_have_type_any: diag(2410, ts.DiagnosticCategory.Error, "The_with_statement_is_not_supported_All_symbols_in_a_with_block_will_have_type_any_2410", "The 'with' statement is not supported. All symbols in a 'with' block will have type 'any'."),
+        Property_0_of_type_1_is_not_assignable_to_string_index_type_2: diag(2411, ts.DiagnosticCategory.Error, "Property_0_of_type_1_is_not_assignable_to_string_index_type_2_2411", "Property '{0}' of type '{1}' is not assignable to string index type '{2}'."),
+        Property_0_of_type_1_is_not_assignable_to_numeric_index_type_2: diag(2412, ts.DiagnosticCategory.Error, "Property_0_of_type_1_is_not_assignable_to_numeric_index_type_2_2412", "Property '{0}' of type '{1}' is not assignable to numeric index type '{2}'."),
+        Numeric_index_type_0_is_not_assignable_to_string_index_type_1: diag(2413, ts.DiagnosticCategory.Error, "Numeric_index_type_0_is_not_assignable_to_string_index_type_1_2413", "Numeric index type '{0}' is not assignable to string index type '{1}'."),
+        Class_name_cannot_be_0: diag(2414, ts.DiagnosticCategory.Error, "Class_name_cannot_be_0_2414", "Class name cannot be '{0}'."),
+        Class_0_incorrectly_extends_base_class_1: diag(2415, ts.DiagnosticCategory.Error, "Class_0_incorrectly_extends_base_class_1_2415", "Class '{0}' incorrectly extends base class '{1}'."),
+        Property_0_in_type_1_is_not_assignable_to_the_same_property_in_base_type_2: diag(2416, ts.DiagnosticCategory.Error, "Property_0_in_type_1_is_not_assignable_to_the_same_property_in_base_type_2_2416", "Property '{0}' in type '{1}' is not assignable to the same property in base type '{2}'."),
+        Class_static_side_0_incorrectly_extends_base_class_static_side_1: diag(2417, ts.DiagnosticCategory.Error, "Class_static_side_0_incorrectly_extends_base_class_static_side_1_2417", "Class static side '{0}' incorrectly extends base class static side '{1}'."),
+        Type_of_computed_property_s_value_is_0_which_is_not_assignable_to_type_1: diag(2418, ts.DiagnosticCategory.Error, "Type_of_computed_property_s_value_is_0_which_is_not_assignable_to_type_1_2418", "Type of computed property's value is '{0}', which is not assignable to type '{1}'."),
+        Class_0_incorrectly_implements_interface_1: diag(2420, ts.DiagnosticCategory.Error, "Class_0_incorrectly_implements_interface_1_2420", "Class '{0}' incorrectly implements interface '{1}'."),
+        A_class_can_only_implement_an_object_type_or_intersection_of_object_types_with_statically_known_members: diag(2422, ts.DiagnosticCategory.Error, "A_class_can_only_implement_an_object_type_or_intersection_of_object_types_with_statically_known_memb_2422", "A class can only implement an object type or intersection of object types with statically known members."),
+        Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_accessor: diag(2423, ts.DiagnosticCategory.Error, "Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_access_2423", "Class '{0}' defines instance member function '{1}', but extended class '{2}' defines it as instance member accessor."),
+        Class_0_defines_instance_member_property_1_but_extended_class_2_defines_it_as_instance_member_function: diag(2425, ts.DiagnosticCategory.Error, "Class_0_defines_instance_member_property_1_but_extended_class_2_defines_it_as_instance_member_functi_2425", "Class '{0}' defines instance member property '{1}', but extended class '{2}' defines it as instance member function."),
+        Class_0_defines_instance_member_accessor_1_but_extended_class_2_defines_it_as_instance_member_function: diag(2426, ts.DiagnosticCategory.Error, "Class_0_defines_instance_member_accessor_1_but_extended_class_2_defines_it_as_instance_member_functi_2426", "Class '{0}' defines instance member accessor '{1}', but extended class '{2}' defines it as instance member function."),
+        Interface_name_cannot_be_0: diag(2427, ts.DiagnosticCategory.Error, "Interface_name_cannot_be_0_2427", "Interface name cannot be '{0}'."),
+        All_declarations_of_0_must_have_identical_type_parameters: diag(2428, ts.DiagnosticCategory.Error, "All_declarations_of_0_must_have_identical_type_parameters_2428", "All declarations of '{0}' must have identical type parameters."),
+        Interface_0_incorrectly_extends_interface_1: diag(2430, ts.DiagnosticCategory.Error, "Interface_0_incorrectly_extends_interface_1_2430", "Interface '{0}' incorrectly extends interface '{1}'."),
+        Enum_name_cannot_be_0: diag(2431, ts.DiagnosticCategory.Error, "Enum_name_cannot_be_0_2431", "Enum name cannot be '{0}'."),
+        In_an_enum_with_multiple_declarations_only_one_declaration_can_omit_an_initializer_for_its_first_enum_element: diag(2432, ts.DiagnosticCategory.Error, "In_an_enum_with_multiple_declarations_only_one_declaration_can_omit_an_initializer_for_its_first_enu_2432", "In an enum with multiple declarations, only one declaration can omit an initializer for its first enum element."),
+        A_namespace_declaration_cannot_be_in_a_different_file_from_a_class_or_function_with_which_it_is_merged: diag(2433, ts.DiagnosticCategory.Error, "A_namespace_declaration_cannot_be_in_a_different_file_from_a_class_or_function_with_which_it_is_merg_2433", "A namespace declaration cannot be in a different file from a class or function with which it is merged."),
+        A_namespace_declaration_cannot_be_located_prior_to_a_class_or_function_with_which_it_is_merged: diag(2434, ts.DiagnosticCategory.Error, "A_namespace_declaration_cannot_be_located_prior_to_a_class_or_function_with_which_it_is_merged_2434", "A namespace declaration cannot be located prior to a class or function with which it is merged."),
+        Ambient_modules_cannot_be_nested_in_other_modules_or_namespaces: diag(2435, ts.DiagnosticCategory.Error, "Ambient_modules_cannot_be_nested_in_other_modules_or_namespaces_2435", "Ambient modules cannot be nested in other modules or namespaces."),
+        Ambient_module_declaration_cannot_specify_relative_module_name: diag(2436, ts.DiagnosticCategory.Error, "Ambient_module_declaration_cannot_specify_relative_module_name_2436", "Ambient module declaration cannot specify relative module name."),
+        Module_0_is_hidden_by_a_local_declaration_with_the_same_name: diag(2437, ts.DiagnosticCategory.Error, "Module_0_is_hidden_by_a_local_declaration_with_the_same_name_2437", "Module '{0}' is hidden by a local declaration with the same name."),
+        Import_name_cannot_be_0: diag(2438, ts.DiagnosticCategory.Error, "Import_name_cannot_be_0_2438", "Import name cannot be '{0}'."),
+        Import_or_export_declaration_in_an_ambient_module_declaration_cannot_reference_module_through_relative_module_name: diag(2439, ts.DiagnosticCategory.Error, "Import_or_export_declaration_in_an_ambient_module_declaration_cannot_reference_module_through_relati_2439", "Import or export declaration in an ambient module declaration cannot reference module through relative module name."),
+        Import_declaration_conflicts_with_local_declaration_of_0: diag(2440, ts.DiagnosticCategory.Error, "Import_declaration_conflicts_with_local_declaration_of_0_2440", "Import declaration conflicts with local declaration of '{0}'."),
+        Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module: diag(2441, ts.DiagnosticCategory.Error, "Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module_2441", "Duplicate identifier '{0}'. Compiler reserves name '{1}' in top level scope of a module."),
+        Types_have_separate_declarations_of_a_private_property_0: diag(2442, ts.DiagnosticCategory.Error, "Types_have_separate_declarations_of_a_private_property_0_2442", "Types have separate declarations of a private property '{0}'."),
+        Property_0_is_protected_but_type_1_is_not_a_class_derived_from_2: diag(2443, ts.DiagnosticCategory.Error, "Property_0_is_protected_but_type_1_is_not_a_class_derived_from_2_2443", "Property '{0}' is protected but type '{1}' is not a class derived from '{2}'."),
+        Property_0_is_protected_in_type_1_but_public_in_type_2: diag(2444, ts.DiagnosticCategory.Error, "Property_0_is_protected_in_type_1_but_public_in_type_2_2444", "Property '{0}' is protected in type '{1}' but public in type '{2}'."),
+        Property_0_is_protected_and_only_accessible_within_class_1_and_its_subclasses: diag(2445, ts.DiagnosticCategory.Error, "Property_0_is_protected_and_only_accessible_within_class_1_and_its_subclasses_2445", "Property '{0}' is protected and only accessible within class '{1}' and its subclasses."),
+        Property_0_is_protected_and_only_accessible_through_an_instance_of_class_1: diag(2446, ts.DiagnosticCategory.Error, "Property_0_is_protected_and_only_accessible_through_an_instance_of_class_1_2446", "Property '{0}' is protected and only accessible through an instance of class '{1}'."),
+        The_0_operator_is_not_allowed_for_boolean_types_Consider_using_1_instead: diag(2447, ts.DiagnosticCategory.Error, "The_0_operator_is_not_allowed_for_boolean_types_Consider_using_1_instead_2447", "The '{0}' operator is not allowed for boolean types. Consider using '{1}' instead."),
+        Block_scoped_variable_0_used_before_its_declaration: diag(2448, ts.DiagnosticCategory.Error, "Block_scoped_variable_0_used_before_its_declaration_2448", "Block-scoped variable '{0}' used before its declaration."),
+        Class_0_used_before_its_declaration: diag(2449, ts.DiagnosticCategory.Error, "Class_0_used_before_its_declaration_2449", "Class '{0}' used before its declaration."),
+        Enum_0_used_before_its_declaration: diag(2450, ts.DiagnosticCategory.Error, "Enum_0_used_before_its_declaration_2450", "Enum '{0}' used before its declaration."),
+        Cannot_redeclare_block_scoped_variable_0: diag(2451, ts.DiagnosticCategory.Error, "Cannot_redeclare_block_scoped_variable_0_2451", "Cannot redeclare block-scoped variable '{0}'."),
+        An_enum_member_cannot_have_a_numeric_name: diag(2452, ts.DiagnosticCategory.Error, "An_enum_member_cannot_have_a_numeric_name_2452", "An enum member cannot have a numeric name."),
+        The_type_argument_for_type_parameter_0_cannot_be_inferred_from_the_usage_Consider_specifying_the_type_arguments_explicitly: diag(2453, ts.DiagnosticCategory.Error, "The_type_argument_for_type_parameter_0_cannot_be_inferred_from_the_usage_Consider_specifying_the_typ_2453", "The type argument for type parameter '{0}' cannot be inferred from the usage. Consider specifying the type arguments explicitly."),
+        Variable_0_is_used_before_being_assigned: diag(2454, ts.DiagnosticCategory.Error, "Variable_0_is_used_before_being_assigned_2454", "Variable '{0}' is used before being assigned."),
+        Type_argument_candidate_1_is_not_a_valid_type_argument_because_it_is_not_a_supertype_of_candidate_0: diag(2455, ts.DiagnosticCategory.Error, "Type_argument_candidate_1_is_not_a_valid_type_argument_because_it_is_not_a_supertype_of_candidate_0_2455", "Type argument candidate '{1}' is not a valid type argument because it is not a supertype of candidate '{0}'."),
+        Type_alias_0_circularly_references_itself: diag(2456, ts.DiagnosticCategory.Error, "Type_alias_0_circularly_references_itself_2456", "Type alias '{0}' circularly references itself."),
+        Type_alias_name_cannot_be_0: diag(2457, ts.DiagnosticCategory.Error, "Type_alias_name_cannot_be_0_2457", "Type alias name cannot be '{0}'."),
+        An_AMD_module_cannot_have_multiple_name_assignments: diag(2458, ts.DiagnosticCategory.Error, "An_AMD_module_cannot_have_multiple_name_assignments_2458", "An AMD module cannot have multiple name assignments."),
+        Module_0_declares_1_locally_but_it_is_not_exported: diag(2459, ts.DiagnosticCategory.Error, "Module_0_declares_1_locally_but_it_is_not_exported_2459", "Module '{0}' declares '{1}' locally, but it is not exported."),
+        Module_0_declares_1_locally_but_it_is_exported_as_2: diag(2460, ts.DiagnosticCategory.Error, "Module_0_declares_1_locally_but_it_is_exported_as_2_2460", "Module '{0}' declares '{1}' locally, but it is exported as '{2}'."),
+        Type_0_is_not_an_array_type: diag(2461, ts.DiagnosticCategory.Error, "Type_0_is_not_an_array_type_2461", "Type '{0}' is not an array type."),
+        A_rest_element_must_be_last_in_a_destructuring_pattern: diag(2462, ts.DiagnosticCategory.Error, "A_rest_element_must_be_last_in_a_destructuring_pattern_2462", "A rest element must be last in a destructuring pattern."),
+        A_binding_pattern_parameter_cannot_be_optional_in_an_implementation_signature: diag(2463, ts.DiagnosticCategory.Error, "A_binding_pattern_parameter_cannot_be_optional_in_an_implementation_signature_2463", "A binding pattern parameter cannot be optional in an implementation signature."),
+        A_computed_property_name_must_be_of_type_string_number_symbol_or_any: diag(2464, ts.DiagnosticCategory.Error, "A_computed_property_name_must_be_of_type_string_number_symbol_or_any_2464", "A computed property name must be of type 'string', 'number', 'symbol', or 'any'."),
+        this_cannot_be_referenced_in_a_computed_property_name: diag(2465, ts.DiagnosticCategory.Error, "this_cannot_be_referenced_in_a_computed_property_name_2465", "'this' cannot be referenced in a computed property name."),
+        super_cannot_be_referenced_in_a_computed_property_name: diag(2466, ts.DiagnosticCategory.Error, "super_cannot_be_referenced_in_a_computed_property_name_2466", "'super' cannot be referenced in a computed property name."),
+        A_computed_property_name_cannot_reference_a_type_parameter_from_its_containing_type: diag(2467, ts.DiagnosticCategory.Error, "A_computed_property_name_cannot_reference_a_type_parameter_from_its_containing_type_2467", "A computed property name cannot reference a type parameter from its containing type."),
+        Cannot_find_global_value_0: diag(2468, ts.DiagnosticCategory.Error, "Cannot_find_global_value_0_2468", "Cannot find global value '{0}'."),
+        The_0_operator_cannot_be_applied_to_type_symbol: diag(2469, ts.DiagnosticCategory.Error, "The_0_operator_cannot_be_applied_to_type_symbol_2469", "The '{0}' operator cannot be applied to type 'symbol'."),
+        Symbol_reference_does_not_refer_to_the_global_Symbol_constructor_object: diag(2470, ts.DiagnosticCategory.Error, "Symbol_reference_does_not_refer_to_the_global_Symbol_constructor_object_2470", "'Symbol' reference does not refer to the global Symbol constructor object."),
+        A_computed_property_name_of_the_form_0_must_be_of_type_symbol: diag(2471, ts.DiagnosticCategory.Error, "A_computed_property_name_of_the_form_0_must_be_of_type_symbol_2471", "A computed property name of the form '{0}' must be of type 'symbol'."),
+        Spread_operator_in_new_expressions_is_only_available_when_targeting_ECMAScript_5_and_higher: diag(2472, ts.DiagnosticCategory.Error, "Spread_operator_in_new_expressions_is_only_available_when_targeting_ECMAScript_5_and_higher_2472", "Spread operator in 'new' expressions is only available when targeting ECMAScript 5 and higher."),
+        Enum_declarations_must_all_be_const_or_non_const: diag(2473, ts.DiagnosticCategory.Error, "Enum_declarations_must_all_be_const_or_non_const_2473", "Enum declarations must all be const or non-const."),
+        const_enum_member_initializers_can_only_contain_literal_values_and_other_computed_enum_values: diag(2474, ts.DiagnosticCategory.Error, "const_enum_member_initializers_can_only_contain_literal_values_and_other_computed_enum_values_2474", "const enum member initializers can only contain literal values and other computed enum values."),
+        const_enums_can_only_be_used_in_property_or_index_access_expressions_or_the_right_hand_side_of_an_import_declaration_or_export_assignment_or_type_query: diag(2475, ts.DiagnosticCategory.Error, "const_enums_can_only_be_used_in_property_or_index_access_expressions_or_the_right_hand_side_of_an_im_2475", "'const' enums can only be used in property or index access expressions or the right hand side of an import declaration or export assignment or type query."),
+        A_const_enum_member_can_only_be_accessed_using_a_string_literal: diag(2476, ts.DiagnosticCategory.Error, "A_const_enum_member_can_only_be_accessed_using_a_string_literal_2476", "A const enum member can only be accessed using a string literal."),
+        const_enum_member_initializer_was_evaluated_to_a_non_finite_value: diag(2477, ts.DiagnosticCategory.Error, "const_enum_member_initializer_was_evaluated_to_a_non_finite_value_2477", "'const' enum member initializer was evaluated to a non-finite value."),
+        const_enum_member_initializer_was_evaluated_to_disallowed_value_NaN: diag(2478, ts.DiagnosticCategory.Error, "const_enum_member_initializer_was_evaluated_to_disallowed_value_NaN_2478", "'const' enum member initializer was evaluated to disallowed value 'NaN'."),
+        Property_0_does_not_exist_on_const_enum_1: diag(2479, ts.DiagnosticCategory.Error, "Property_0_does_not_exist_on_const_enum_1_2479", "Property '{0}' does not exist on 'const' enum '{1}'."),
+        let_is_not_allowed_to_be_used_as_a_name_in_let_or_const_declarations: diag(2480, ts.DiagnosticCategory.Error, "let_is_not_allowed_to_be_used_as_a_name_in_let_or_const_declarations_2480", "'let' is not allowed to be used as a name in 'let' or 'const' declarations."),
+        Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1: diag(2481, ts.DiagnosticCategory.Error, "Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1_2481", "Cannot initialize outer scoped variable '{0}' in the same scope as block scoped declaration '{1}'."),
+        The_left_hand_side_of_a_for_of_statement_cannot_use_a_type_annotation: diag(2483, ts.DiagnosticCategory.Error, "The_left_hand_side_of_a_for_of_statement_cannot_use_a_type_annotation_2483", "The left-hand side of a 'for...of' statement cannot use a type annotation."),
+        Export_declaration_conflicts_with_exported_declaration_of_0: diag(2484, ts.DiagnosticCategory.Error, "Export_declaration_conflicts_with_exported_declaration_of_0_2484", "Export declaration conflicts with exported declaration of '{0}'."),
+        The_left_hand_side_of_a_for_of_statement_must_be_a_variable_or_a_property_access: diag(2487, ts.DiagnosticCategory.Error, "The_left_hand_side_of_a_for_of_statement_must_be_a_variable_or_a_property_access_2487", "The left-hand side of a 'for...of' statement must be a variable or a property access."),
+        Type_0_must_have_a_Symbol_iterator_method_that_returns_an_iterator: diag(2488, ts.DiagnosticCategory.Error, "Type_0_must_have_a_Symbol_iterator_method_that_returns_an_iterator_2488", "Type '{0}' must have a '[Symbol.iterator]()' method that returns an iterator."),
+        An_iterator_must_have_a_next_method: diag(2489, ts.DiagnosticCategory.Error, "An_iterator_must_have_a_next_method_2489", "An iterator must have a 'next()' method."),
+        The_type_returned_by_the_0_method_of_an_iterator_must_have_a_value_property: diag(2490, ts.DiagnosticCategory.Error, "The_type_returned_by_the_0_method_of_an_iterator_must_have_a_value_property_2490", "The type returned by the '{0}()' method of an iterator must have a 'value' property."),
+        The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern: diag(2491, ts.DiagnosticCategory.Error, "The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern_2491", "The left-hand side of a 'for...in' statement cannot be a destructuring pattern."),
+        Cannot_redeclare_identifier_0_in_catch_clause: diag(2492, ts.DiagnosticCategory.Error, "Cannot_redeclare_identifier_0_in_catch_clause_2492", "Cannot redeclare identifier '{0}' in catch clause."),
+        Tuple_type_0_of_length_1_has_no_element_at_index_2: diag(2493, ts.DiagnosticCategory.Error, "Tuple_type_0_of_length_1_has_no_element_at_index_2_2493", "Tuple type '{0}' of length '{1}' has no element at index '{2}'."),
+        Using_a_string_in_a_for_of_statement_is_only_supported_in_ECMAScript_5_and_higher: diag(2494, ts.DiagnosticCategory.Error, "Using_a_string_in_a_for_of_statement_is_only_supported_in_ECMAScript_5_and_higher_2494", "Using a string in a 'for...of' statement is only supported in ECMAScript 5 and higher."),
+        Type_0_is_not_an_array_type_or_a_string_type: diag(2495, ts.DiagnosticCategory.Error, "Type_0_is_not_an_array_type_or_a_string_type_2495", "Type '{0}' is not an array type or a string type."),
+        The_arguments_object_cannot_be_referenced_in_an_arrow_function_in_ES3_and_ES5_Consider_using_a_standard_function_expression: diag(2496, ts.DiagnosticCategory.Error, "The_arguments_object_cannot_be_referenced_in_an_arrow_function_in_ES3_and_ES5_Consider_using_a_stand_2496", "The 'arguments' object cannot be referenced in an arrow function in ES3 and ES5. Consider using a standard function expression."),
+        This_module_can_only_be_referenced_with_ECMAScript_imports_Slashexports_by_turning_on_the_0_flag_and_referencing_its_default_export: diag(2497, ts.DiagnosticCategory.Error, "This_module_can_only_be_referenced_with_ECMAScript_imports_Slashexports_by_turning_on_the_0_flag_and_2497", "This module can only be referenced with ECMAScript imports/exports by turning on the '{0}' flag and referencing its default export."),
+        Module_0_uses_export_and_cannot_be_used_with_export_Asterisk: diag(2498, ts.DiagnosticCategory.Error, "Module_0_uses_export_and_cannot_be_used_with_export_Asterisk_2498", "Module '{0}' uses 'export =' and cannot be used with 'export *'."),
+        An_interface_can_only_extend_an_identifier_Slashqualified_name_with_optional_type_arguments: diag(2499, ts.DiagnosticCategory.Error, "An_interface_can_only_extend_an_identifier_Slashqualified_name_with_optional_type_arguments_2499", "An interface can only extend an identifier/qualified-name with optional type arguments."),
+        A_class_can_only_implement_an_identifier_Slashqualified_name_with_optional_type_arguments: diag(2500, ts.DiagnosticCategory.Error, "A_class_can_only_implement_an_identifier_Slashqualified_name_with_optional_type_arguments_2500", "A class can only implement an identifier/qualified-name with optional type arguments."),
+        A_rest_element_cannot_contain_a_binding_pattern: diag(2501, ts.DiagnosticCategory.Error, "A_rest_element_cannot_contain_a_binding_pattern_2501", "A rest element cannot contain a binding pattern."),
+        _0_is_referenced_directly_or_indirectly_in_its_own_type_annotation: diag(2502, ts.DiagnosticCategory.Error, "_0_is_referenced_directly_or_indirectly_in_its_own_type_annotation_2502", "'{0}' is referenced directly or indirectly in its own type annotation."),
+        Cannot_find_namespace_0: diag(2503, ts.DiagnosticCategory.Error, "Cannot_find_namespace_0_2503", "Cannot find namespace '{0}'."),
+        Type_0_must_have_a_Symbol_asyncIterator_method_that_returns_an_async_iterator: diag(2504, ts.DiagnosticCategory.Error, "Type_0_must_have_a_Symbol_asyncIterator_method_that_returns_an_async_iterator_2504", "Type '{0}' must have a '[Symbol.asyncIterator]()' method that returns an async iterator."),
+        A_generator_cannot_have_a_void_type_annotation: diag(2505, ts.DiagnosticCategory.Error, "A_generator_cannot_have_a_void_type_annotation_2505", "A generator cannot have a 'void' type annotation."),
+        _0_is_referenced_directly_or_indirectly_in_its_own_base_expression: diag(2506, ts.DiagnosticCategory.Error, "_0_is_referenced_directly_or_indirectly_in_its_own_base_expression_2506", "'{0}' is referenced directly or indirectly in its own base expression."),
+        Type_0_is_not_a_constructor_function_type: diag(2507, ts.DiagnosticCategory.Error, "Type_0_is_not_a_constructor_function_type_2507", "Type '{0}' is not a constructor function type."),
+        No_base_constructor_has_the_specified_number_of_type_arguments: diag(2508, ts.DiagnosticCategory.Error, "No_base_constructor_has_the_specified_number_of_type_arguments_2508", "No base constructor has the specified number of type arguments."),
+        Base_constructor_return_type_0_is_not_an_object_type_or_intersection_of_object_types_with_statically_known_members: diag(2509, ts.DiagnosticCategory.Error, "Base_constructor_return_type_0_is_not_an_object_type_or_intersection_of_object_types_with_statically_2509", "Base constructor return type '{0}' is not an object type or intersection of object types with statically known members."),
+        Base_constructors_must_all_have_the_same_return_type: diag(2510, ts.DiagnosticCategory.Error, "Base_constructors_must_all_have_the_same_return_type_2510", "Base constructors must all have the same return type."),
+        Cannot_create_an_instance_of_an_abstract_class: diag(2511, ts.DiagnosticCategory.Error, "Cannot_create_an_instance_of_an_abstract_class_2511", "Cannot create an instance of an abstract class."),
+        Overload_signatures_must_all_be_abstract_or_non_abstract: diag(2512, ts.DiagnosticCategory.Error, "Overload_signatures_must_all_be_abstract_or_non_abstract_2512", "Overload signatures must all be abstract or non-abstract."),
+        Abstract_method_0_in_class_1_cannot_be_accessed_via_super_expression: diag(2513, ts.DiagnosticCategory.Error, "Abstract_method_0_in_class_1_cannot_be_accessed_via_super_expression_2513", "Abstract method '{0}' in class '{1}' cannot be accessed via super expression."),
+        Classes_containing_abstract_methods_must_be_marked_abstract: diag(2514, ts.DiagnosticCategory.Error, "Classes_containing_abstract_methods_must_be_marked_abstract_2514", "Classes containing abstract methods must be marked abstract."),
+        Non_abstract_class_0_does_not_implement_inherited_abstract_member_1_from_class_2: diag(2515, ts.DiagnosticCategory.Error, "Non_abstract_class_0_does_not_implement_inherited_abstract_member_1_from_class_2_2515", "Non-abstract class '{0}' does not implement inherited abstract member '{1}' from class '{2}'."),
+        All_declarations_of_an_abstract_method_must_be_consecutive: diag(2516, ts.DiagnosticCategory.Error, "All_declarations_of_an_abstract_method_must_be_consecutive_2516", "All declarations of an abstract method must be consecutive."),
+        Cannot_assign_an_abstract_constructor_type_to_a_non_abstract_constructor_type: diag(2517, ts.DiagnosticCategory.Error, "Cannot_assign_an_abstract_constructor_type_to_a_non_abstract_constructor_type_2517", "Cannot assign an abstract constructor type to a non-abstract constructor type."),
+        A_this_based_type_guard_is_not_compatible_with_a_parameter_based_type_guard: diag(2518, ts.DiagnosticCategory.Error, "A_this_based_type_guard_is_not_compatible_with_a_parameter_based_type_guard_2518", "A 'this'-based type guard is not compatible with a parameter-based type guard."),
+        An_async_iterator_must_have_a_next_method: diag(2519, ts.DiagnosticCategory.Error, "An_async_iterator_must_have_a_next_method_2519", "An async iterator must have a 'next()' method."),
+        Duplicate_identifier_0_Compiler_uses_declaration_1_to_support_async_functions: diag(2520, ts.DiagnosticCategory.Error, "Duplicate_identifier_0_Compiler_uses_declaration_1_to_support_async_functions_2520", "Duplicate identifier '{0}'. Compiler uses declaration '{1}' to support async functions."),
+        Expression_resolves_to_variable_declaration_0_that_compiler_uses_to_support_async_functions: diag(2521, ts.DiagnosticCategory.Error, "Expression_resolves_to_variable_declaration_0_that_compiler_uses_to_support_async_functions_2521", "Expression resolves to variable declaration '{0}' that compiler uses to support async functions."),
+        The_arguments_object_cannot_be_referenced_in_an_async_function_or_method_in_ES3_and_ES5_Consider_using_a_standard_function_or_method: diag(2522, ts.DiagnosticCategory.Error, "The_arguments_object_cannot_be_referenced_in_an_async_function_or_method_in_ES3_and_ES5_Consider_usi_2522", "The 'arguments' object cannot be referenced in an async function or method in ES3 and ES5. Consider using a standard function or method."),
+        yield_expressions_cannot_be_used_in_a_parameter_initializer: diag(2523, ts.DiagnosticCategory.Error, "yield_expressions_cannot_be_used_in_a_parameter_initializer_2523", "'yield' expressions cannot be used in a parameter initializer."),
+        await_expressions_cannot_be_used_in_a_parameter_initializer: diag(2524, ts.DiagnosticCategory.Error, "await_expressions_cannot_be_used_in_a_parameter_initializer_2524", "'await' expressions cannot be used in a parameter initializer."),
+        Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value: diag(2525, ts.DiagnosticCategory.Error, "Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value_2525", "Initializer provides no value for this binding element and the binding element has no default value."),
+        A_this_type_is_available_only_in_a_non_static_member_of_a_class_or_interface: diag(2526, ts.DiagnosticCategory.Error, "A_this_type_is_available_only_in_a_non_static_member_of_a_class_or_interface_2526", "A 'this' type is available only in a non-static member of a class or interface."),
+        The_inferred_type_of_0_references_an_inaccessible_1_type_A_type_annotation_is_necessary: diag(2527, ts.DiagnosticCategory.Error, "The_inferred_type_of_0_references_an_inaccessible_1_type_A_type_annotation_is_necessary_2527", "The inferred type of '{0}' references an inaccessible '{1}' type. A type annotation is necessary."),
+        A_module_cannot_have_multiple_default_exports: diag(2528, ts.DiagnosticCategory.Error, "A_module_cannot_have_multiple_default_exports_2528", "A module cannot have multiple default exports."),
+        Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module_containing_async_functions: diag(2529, ts.DiagnosticCategory.Error, "Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module_containing_async_func_2529", "Duplicate identifier '{0}'. Compiler reserves name '{1}' in top level scope of a module containing async functions."),
+        Property_0_is_incompatible_with_index_signature: diag(2530, ts.DiagnosticCategory.Error, "Property_0_is_incompatible_with_index_signature_2530", "Property '{0}' is incompatible with index signature."),
+        Object_is_possibly_null: diag(2531, ts.DiagnosticCategory.Error, "Object_is_possibly_null_2531", "Object is possibly 'null'."),
+        Object_is_possibly_undefined: diag(2532, ts.DiagnosticCategory.Error, "Object_is_possibly_undefined_2532", "Object is possibly 'undefined'."),
+        Object_is_possibly_null_or_undefined: diag(2533, ts.DiagnosticCategory.Error, "Object_is_possibly_null_or_undefined_2533", "Object is possibly 'null' or 'undefined'."),
+        A_function_returning_never_cannot_have_a_reachable_end_point: diag(2534, ts.DiagnosticCategory.Error, "A_function_returning_never_cannot_have_a_reachable_end_point_2534", "A function returning 'never' cannot have a reachable end point."),
+        Enum_type_0_has_members_with_initializers_that_are_not_literals: diag(2535, ts.DiagnosticCategory.Error, "Enum_type_0_has_members_with_initializers_that_are_not_literals_2535", "Enum type '{0}' has members with initializers that are not literals."),
+        Type_0_cannot_be_used_to_index_type_1: diag(2536, ts.DiagnosticCategory.Error, "Type_0_cannot_be_used_to_index_type_1_2536", "Type '{0}' cannot be used to index type '{1}'."),
+        Type_0_has_no_matching_index_signature_for_type_1: diag(2537, ts.DiagnosticCategory.Error, "Type_0_has_no_matching_index_signature_for_type_1_2537", "Type '{0}' has no matching index signature for type '{1}'."),
+        Type_0_cannot_be_used_as_an_index_type: diag(2538, ts.DiagnosticCategory.Error, "Type_0_cannot_be_used_as_an_index_type_2538", "Type '{0}' cannot be used as an index type."),
+        Cannot_assign_to_0_because_it_is_not_a_variable: diag(2539, ts.DiagnosticCategory.Error, "Cannot_assign_to_0_because_it_is_not_a_variable_2539", "Cannot assign to '{0}' because it is not a variable."),
+        Cannot_assign_to_0_because_it_is_a_read_only_property: diag(2540, ts.DiagnosticCategory.Error, "Cannot_assign_to_0_because_it_is_a_read_only_property_2540", "Cannot assign to '{0}' because it is a read-only property."),
+        The_target_of_an_assignment_must_be_a_variable_or_a_property_access: diag(2541, ts.DiagnosticCategory.Error, "The_target_of_an_assignment_must_be_a_variable_or_a_property_access_2541", "The target of an assignment must be a variable or a property access."),
+        Index_signature_in_type_0_only_permits_reading: diag(2542, ts.DiagnosticCategory.Error, "Index_signature_in_type_0_only_permits_reading_2542", "Index signature in type '{0}' only permits reading."),
+        Duplicate_identifier_newTarget_Compiler_uses_variable_declaration_newTarget_to_capture_new_target_meta_property_reference: diag(2543, ts.DiagnosticCategory.Error, "Duplicate_identifier_newTarget_Compiler_uses_variable_declaration_newTarget_to_capture_new_target_me_2543", "Duplicate identifier '_newTarget'. Compiler uses variable declaration '_newTarget' to capture 'new.target' meta-property reference."),
+        Expression_resolves_to_variable_declaration_newTarget_that_compiler_uses_to_capture_new_target_meta_property_reference: diag(2544, ts.DiagnosticCategory.Error, "Expression_resolves_to_variable_declaration_newTarget_that_compiler_uses_to_capture_new_target_meta__2544", "Expression resolves to variable declaration '_newTarget' that compiler uses to capture 'new.target' meta-property reference."),
+        A_mixin_class_must_have_a_constructor_with_a_single_rest_parameter_of_type_any: diag(2545, ts.DiagnosticCategory.Error, "A_mixin_class_must_have_a_constructor_with_a_single_rest_parameter_of_type_any_2545", "A mixin class must have a constructor with a single rest parameter of type 'any[]'."),
+        The_type_returned_by_the_0_method_of_an_async_iterator_must_be_a_promise_for_a_type_with_a_value_property: diag(2547, ts.DiagnosticCategory.Error, "The_type_returned_by_the_0_method_of_an_async_iterator_must_be_a_promise_for_a_type_with_a_value_pro_2547", "The type returned by the '{0}()' method of an async iterator must be a promise for a type with a 'value' property."),
+        Type_0_is_not_an_array_type_or_does_not_have_a_Symbol_iterator_method_that_returns_an_iterator: diag(2548, ts.DiagnosticCategory.Error, "Type_0_is_not_an_array_type_or_does_not_have_a_Symbol_iterator_method_that_returns_an_iterator_2548", "Type '{0}' is not an array type or does not have a '[Symbol.iterator]()' method that returns an iterator."),
+        Type_0_is_not_an_array_type_or_a_string_type_or_does_not_have_a_Symbol_iterator_method_that_returns_an_iterator: diag(2549, ts.DiagnosticCategory.Error, "Type_0_is_not_an_array_type_or_a_string_type_or_does_not_have_a_Symbol_iterator_method_that_returns__2549", "Type '{0}' is not an array type or a string type or does not have a '[Symbol.iterator]()' method that returns an iterator."),
+        Property_0_does_not_exist_on_type_1_Did_you_mean_2: diag(2551, ts.DiagnosticCategory.Error, "Property_0_does_not_exist_on_type_1_Did_you_mean_2_2551", "Property '{0}' does not exist on type '{1}'. Did you mean '{2}'?"),
+        Cannot_find_name_0_Did_you_mean_1: diag(2552, ts.DiagnosticCategory.Error, "Cannot_find_name_0_Did_you_mean_1_2552", "Cannot find name '{0}'. Did you mean '{1}'?"),
+        Computed_values_are_not_permitted_in_an_enum_with_string_valued_members: diag(2553, ts.DiagnosticCategory.Error, "Computed_values_are_not_permitted_in_an_enum_with_string_valued_members_2553", "Computed values are not permitted in an enum with string valued members."),
+        Expected_0_arguments_but_got_1: diag(2554, ts.DiagnosticCategory.Error, "Expected_0_arguments_but_got_1_2554", "Expected {0} arguments, but got {1}."),
+        Expected_at_least_0_arguments_but_got_1: diag(2555, ts.DiagnosticCategory.Error, "Expected_at_least_0_arguments_but_got_1_2555", "Expected at least {0} arguments, but got {1}."),
+        Expected_0_arguments_but_got_1_or_more: diag(2556, ts.DiagnosticCategory.Error, "Expected_0_arguments_but_got_1_or_more_2556", "Expected {0} arguments, but got {1} or more."),
+        Expected_at_least_0_arguments_but_got_1_or_more: diag(2557, ts.DiagnosticCategory.Error, "Expected_at_least_0_arguments_but_got_1_or_more_2557", "Expected at least {0} arguments, but got {1} or more."),
+        Expected_0_type_arguments_but_got_1: diag(2558, ts.DiagnosticCategory.Error, "Expected_0_type_arguments_but_got_1_2558", "Expected {0} type arguments, but got {1}."),
+        Type_0_has_no_properties_in_common_with_type_1: diag(2559, ts.DiagnosticCategory.Error, "Type_0_has_no_properties_in_common_with_type_1_2559", "Type '{0}' has no properties in common with type '{1}'."),
+        Value_of_type_0_has_no_properties_in_common_with_type_1_Did_you_mean_to_call_it: diag(2560, ts.DiagnosticCategory.Error, "Value_of_type_0_has_no_properties_in_common_with_type_1_Did_you_mean_to_call_it_2560", "Value of type '{0}' has no properties in common with type '{1}'. Did you mean to call it?"),
+        Object_literal_may_only_specify_known_properties_but_0_does_not_exist_in_type_1_Did_you_mean_to_write_2: diag(2561, ts.DiagnosticCategory.Error, "Object_literal_may_only_specify_known_properties_but_0_does_not_exist_in_type_1_Did_you_mean_to_writ_2561", "Object literal may only specify known properties, but '{0}' does not exist in type '{1}'. Did you mean to write '{2}'?"),
+        Base_class_expressions_cannot_reference_class_type_parameters: diag(2562, ts.DiagnosticCategory.Error, "Base_class_expressions_cannot_reference_class_type_parameters_2562", "Base class expressions cannot reference class type parameters."),
+        The_containing_function_or_module_body_is_too_large_for_control_flow_analysis: diag(2563, ts.DiagnosticCategory.Error, "The_containing_function_or_module_body_is_too_large_for_control_flow_analysis_2563", "The containing function or module body is too large for control flow analysis."),
+        Property_0_has_no_initializer_and_is_not_definitely_assigned_in_the_constructor: diag(2564, ts.DiagnosticCategory.Error, "Property_0_has_no_initializer_and_is_not_definitely_assigned_in_the_constructor_2564", "Property '{0}' has no initializer and is not definitely assigned in the constructor."),
+        Property_0_is_used_before_being_assigned: diag(2565, ts.DiagnosticCategory.Error, "Property_0_is_used_before_being_assigned_2565", "Property '{0}' is used before being assigned."),
+        A_rest_element_cannot_have_a_property_name: diag(2566, ts.DiagnosticCategory.Error, "A_rest_element_cannot_have_a_property_name_2566", "A rest element cannot have a property name."),
+        Enum_declarations_can_only_merge_with_namespace_or_other_enum_declarations: diag(2567, ts.DiagnosticCategory.Error, "Enum_declarations_can_only_merge_with_namespace_or_other_enum_declarations_2567", "Enum declarations can only merge with namespace or other enum declarations."),
+        Type_0_is_not_an_array_type_or_a_string_type_Use_compiler_option_downlevelIteration_to_allow_iterating_of_iterators: diag(2569, ts.DiagnosticCategory.Error, "Type_0_is_not_an_array_type_or_a_string_type_Use_compiler_option_downlevelIteration_to_allow_iterati_2569", "Type '{0}' is not an array type or a string type. Use compiler option '--downlevelIteration' to allow iterating of iterators."),
+        Object_is_of_type_unknown: diag(2571, ts.DiagnosticCategory.Error, "Object_is_of_type_unknown_2571", "Object is of type 'unknown'."),
+        Rest_signatures_are_incompatible: diag(2572, ts.DiagnosticCategory.Error, "Rest_signatures_are_incompatible_2572", "Rest signatures are incompatible."),
+        Property_0_is_incompatible_with_rest_element_type: diag(2573, ts.DiagnosticCategory.Error, "Property_0_is_incompatible_with_rest_element_type_2573", "Property '{0}' is incompatible with rest element type."),
+        A_rest_element_type_must_be_an_array_type: diag(2574, ts.DiagnosticCategory.Error, "A_rest_element_type_must_be_an_array_type_2574", "A rest element type must be an array type."),
+        No_overload_expects_0_arguments_but_overloads_do_exist_that_expect_either_1_or_2_arguments: diag(2575, ts.DiagnosticCategory.Error, "No_overload_expects_0_arguments_but_overloads_do_exist_that_expect_either_1_or_2_arguments_2575", "No overload expects {0} arguments, but overloads do exist that expect either {1} or {2} arguments."),
+        Property_0_is_a_static_member_of_type_1: diag(2576, ts.DiagnosticCategory.Error, "Property_0_is_a_static_member_of_type_1_2576", "Property '{0}' is a static member of type '{1}'"),
+        Return_type_annotation_circularly_references_itself: diag(2577, ts.DiagnosticCategory.Error, "Return_type_annotation_circularly_references_itself_2577", "Return type annotation circularly references itself."),
+        Unused_ts_expect_error_directive: diag(2578, ts.DiagnosticCategory.Error, "Unused_ts_expect_error_directive_2578", "Unused '@ts-expect-error' directive."),
+        Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_node_Try_npm_i_types_Slashnode: diag(2580, ts.DiagnosticCategory.Error, "Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_node_Try_npm_i_types_Slashnode_2580", "Cannot find name '{0}'. Do you need to install type definitions for node? Try `npm i @types/node`."),
+        Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_jQuery_Try_npm_i_types_Slashjquery: diag(2581, ts.DiagnosticCategory.Error, "Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_jQuery_Try_npm_i_types_Slashjquery_2581", "Cannot find name '{0}'. Do you need to install type definitions for jQuery? Try `npm i @types/jquery`."),
+        Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_a_test_runner_Try_npm_i_types_Slashjest_or_npm_i_types_Slashmocha: diag(2582, ts.DiagnosticCategory.Error, "Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_a_test_runner_Try_npm_i_types_Slashje_2582", "Cannot find name '{0}'. Do you need to install type definitions for a test runner? Try `npm i @types/jest` or `npm i @types/mocha`."),
+        Cannot_find_name_0_Do_you_need_to_change_your_target_library_Try_changing_the_lib_compiler_option_to_es2015_or_later: diag(2583, ts.DiagnosticCategory.Error, "Cannot_find_name_0_Do_you_need_to_change_your_target_library_Try_changing_the_lib_compiler_option_to_2583", "Cannot find name '{0}'. Do you need to change your target library? Try changing the `lib` compiler option to es2015 or later."),
+        Cannot_find_name_0_Do_you_need_to_change_your_target_library_Try_changing_the_lib_compiler_option_to_include_dom: diag(2584, ts.DiagnosticCategory.Error, "Cannot_find_name_0_Do_you_need_to_change_your_target_library_Try_changing_the_lib_compiler_option_to_2584", "Cannot find name '{0}'. Do you need to change your target library? Try changing the `lib` compiler option to include 'dom'."),
+        _0_only_refers_to_a_type_but_is_being_used_as_a_value_here_Do_you_need_to_change_your_target_library_Try_changing_the_lib_compiler_option_to_es2015_or_later: diag(2585, ts.DiagnosticCategory.Error, "_0_only_refers_to_a_type_but_is_being_used_as_a_value_here_Do_you_need_to_change_your_target_library_2585", "'{0}' only refers to a type, but is being used as a value here. Do you need to change your target library? Try changing the `lib` compiler option to es2015 or later."),
+        Enum_type_0_circularly_references_itself: diag(2586, ts.DiagnosticCategory.Error, "Enum_type_0_circularly_references_itself_2586", "Enum type '{0}' circularly references itself."),
+        JSDoc_type_0_circularly_references_itself: diag(2587, ts.DiagnosticCategory.Error, "JSDoc_type_0_circularly_references_itself_2587", "JSDoc type '{0}' circularly references itself."),
+        Cannot_assign_to_0_because_it_is_a_constant: diag(2588, ts.DiagnosticCategory.Error, "Cannot_assign_to_0_because_it_is_a_constant_2588", "Cannot assign to '{0}' because it is a constant."),
+        Type_instantiation_is_excessively_deep_and_possibly_infinite: diag(2589, ts.DiagnosticCategory.Error, "Type_instantiation_is_excessively_deep_and_possibly_infinite_2589", "Type instantiation is excessively deep and possibly infinite."),
+        Expression_produces_a_union_type_that_is_too_complex_to_represent: diag(2590, ts.DiagnosticCategory.Error, "Expression_produces_a_union_type_that_is_too_complex_to_represent_2590", "Expression produces a union type that is too complex to represent."),
+        Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_node_Try_npm_i_types_Slashnode_and_then_add_node_to_the_types_field_in_your_tsconfig: diag(2591, ts.DiagnosticCategory.Error, "Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_node_Try_npm_i_types_Slashnode_and_th_2591", "Cannot find name '{0}'. Do you need to install type definitions for node? Try `npm i @types/node` and then add `node` to the types field in your tsconfig."),
+        Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_jQuery_Try_npm_i_types_Slashjquery_and_then_add_jquery_to_the_types_field_in_your_tsconfig: diag(2592, ts.DiagnosticCategory.Error, "Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_jQuery_Try_npm_i_types_Slashjquery_an_2592", "Cannot find name '{0}'. Do you need to install type definitions for jQuery? Try `npm i @types/jquery` and then add `jquery` to the types field in your tsconfig."),
+        Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_a_test_runner_Try_npm_i_types_Slashjest_or_npm_i_types_Slashmocha_and_then_add_jest_or_mocha_to_the_types_field_in_your_tsconfig: diag(2593, ts.DiagnosticCategory.Error, "Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_a_test_runner_Try_npm_i_types_Slashje_2593", "Cannot find name '{0}'. Do you need to install type definitions for a test runner? Try `npm i @types/jest` or `npm i @types/mocha` and then add `jest` or `mocha` to the types field in your tsconfig."),
+        This_module_is_declared_with_using_export_and_can_only_be_used_with_a_default_import_when_using_the_0_flag: diag(2594, ts.DiagnosticCategory.Error, "This_module_is_declared_with_using_export_and_can_only_be_used_with_a_default_import_when_using_the__2594", "This module is declared with using 'export =', and can only be used with a default import when using the '{0}' flag."),
+        _0_can_only_be_imported_by_using_a_default_import: diag(2595, ts.DiagnosticCategory.Error, "_0_can_only_be_imported_by_using_a_default_import_2595", "'{0}' can only be imported by using a default import."),
+        _0_can_only_be_imported_by_turning_on_the_esModuleInterop_flag_and_using_a_default_import: diag(2596, ts.DiagnosticCategory.Error, "_0_can_only_be_imported_by_turning_on_the_esModuleInterop_flag_and_using_a_default_import_2596", "'{0}' can only be imported by turning on the 'esModuleInterop' flag and using a default import."),
+        _0_can_only_be_imported_by_using_a_require_call_or_by_using_a_default_import: diag(2597, ts.DiagnosticCategory.Error, "_0_can_only_be_imported_by_using_a_require_call_or_by_using_a_default_import_2597", "'{0}' can only be imported by using a 'require' call or by using a default import."),
+        _0_can_only_be_imported_by_using_a_require_call_or_by_turning_on_the_esModuleInterop_flag_and_using_a_default_import: diag(2598, ts.DiagnosticCategory.Error, "_0_can_only_be_imported_by_using_a_require_call_or_by_turning_on_the_esModuleInterop_flag_and_using__2598", "'{0}' can only be imported by using a 'require' call or by turning on the 'esModuleInterop' flag and using a default import."),
+        JSX_element_attributes_type_0_may_not_be_a_union_type: diag(2600, ts.DiagnosticCategory.Error, "JSX_element_attributes_type_0_may_not_be_a_union_type_2600", "JSX element attributes type '{0}' may not be a union type."),
+        The_return_type_of_a_JSX_element_constructor_must_return_an_object_type: diag(2601, ts.DiagnosticCategory.Error, "The_return_type_of_a_JSX_element_constructor_must_return_an_object_type_2601", "The return type of a JSX element constructor must return an object type."),
+        JSX_element_implicitly_has_type_any_because_the_global_type_JSX_Element_does_not_exist: diag(2602, ts.DiagnosticCategory.Error, "JSX_element_implicitly_has_type_any_because_the_global_type_JSX_Element_does_not_exist_2602", "JSX element implicitly has type 'any' because the global type 'JSX.Element' does not exist."),
+        Property_0_in_type_1_is_not_assignable_to_type_2: diag(2603, ts.DiagnosticCategory.Error, "Property_0_in_type_1_is_not_assignable_to_type_2_2603", "Property '{0}' in type '{1}' is not assignable to type '{2}'."),
+        JSX_element_type_0_does_not_have_any_construct_or_call_signatures: diag(2604, ts.DiagnosticCategory.Error, "JSX_element_type_0_does_not_have_any_construct_or_call_signatures_2604", "JSX element type '{0}' does not have any construct or call signatures."),
+        JSX_element_type_0_is_not_a_constructor_function_for_JSX_elements: diag(2605, ts.DiagnosticCategory.Error, "JSX_element_type_0_is_not_a_constructor_function_for_JSX_elements_2605", "JSX element type '{0}' is not a constructor function for JSX elements."),
+        Property_0_of_JSX_spread_attribute_is_not_assignable_to_target_property: diag(2606, ts.DiagnosticCategory.Error, "Property_0_of_JSX_spread_attribute_is_not_assignable_to_target_property_2606", "Property '{0}' of JSX spread attribute is not assignable to target property."),
+        JSX_element_class_does_not_support_attributes_because_it_does_not_have_a_0_property: diag(2607, ts.DiagnosticCategory.Error, "JSX_element_class_does_not_support_attributes_because_it_does_not_have_a_0_property_2607", "JSX element class does not support attributes because it does not have a '{0}' property."),
+        The_global_type_JSX_0_may_not_have_more_than_one_property: diag(2608, ts.DiagnosticCategory.Error, "The_global_type_JSX_0_may_not_have_more_than_one_property_2608", "The global type 'JSX.{0}' may not have more than one property."),
+        JSX_spread_child_must_be_an_array_type: diag(2609, ts.DiagnosticCategory.Error, "JSX_spread_child_must_be_an_array_type_2609", "JSX spread child must be an array type."),
+        _0_is_defined_as_an_accessor_in_class_1_but_is_overridden_here_in_2_as_an_instance_property: diag(2610, ts.DiagnosticCategory.Error, "_0_is_defined_as_an_accessor_in_class_1_but_is_overridden_here_in_2_as_an_instance_property_2610", "'{0}' is defined as an accessor in class '{1}', but is overridden here in '{2}' as an instance property."),
+        _0_is_defined_as_a_property_in_class_1_but_is_overridden_here_in_2_as_an_accessor: diag(2611, ts.DiagnosticCategory.Error, "_0_is_defined_as_a_property_in_class_1_but_is_overridden_here_in_2_as_an_accessor_2611", "'{0}' is defined as a property in class '{1}', but is overridden here in '{2}' as an accessor."),
+        Property_0_will_overwrite_the_base_property_in_1_If_this_is_intentional_add_an_initializer_Otherwise_add_a_declare_modifier_or_remove_the_redundant_declaration: diag(2612, ts.DiagnosticCategory.Error, "Property_0_will_overwrite_the_base_property_in_1_If_this_is_intentional_add_an_initializer_Otherwise_2612", "Property '{0}' will overwrite the base property in '{1}'. If this is intentional, add an initializer. Otherwise, add a 'declare' modifier or remove the redundant declaration."),
+        Module_0_has_no_default_export_Did_you_mean_to_use_import_1_from_0_instead: diag(2613, ts.DiagnosticCategory.Error, "Module_0_has_no_default_export_Did_you_mean_to_use_import_1_from_0_instead_2613", "Module '{0}' has no default export. Did you mean to use 'import { {1} } from {0}' instead?"),
+        Module_0_has_no_exported_member_1_Did_you_mean_to_use_import_1_from_0_instead: diag(2614, ts.DiagnosticCategory.Error, "Module_0_has_no_exported_member_1_Did_you_mean_to_use_import_1_from_0_instead_2614", "Module '{0}' has no exported member '{1}'. Did you mean to use 'import {1} from {0}' instead?"),
+        Type_of_property_0_circularly_references_itself_in_mapped_type_1: diag(2615, ts.DiagnosticCategory.Error, "Type_of_property_0_circularly_references_itself_in_mapped_type_1_2615", "Type of property '{0}' circularly references itself in mapped type '{1}'."),
+        _0_can_only_be_imported_by_using_import_1_require_2_or_a_default_import: diag(2616, ts.DiagnosticCategory.Error, "_0_can_only_be_imported_by_using_import_1_require_2_or_a_default_import_2616", "'{0}' can only be imported by using 'import {1} = require({2})' or a default import."),
+        _0_can_only_be_imported_by_using_import_1_require_2_or_by_turning_on_the_esModuleInterop_flag_and_using_a_default_import: diag(2617, ts.DiagnosticCategory.Error, "_0_can_only_be_imported_by_using_import_1_require_2_or_by_turning_on_the_esModuleInterop_flag_and_us_2617", "'{0}' can only be imported by using 'import {1} = require({2})' or by turning on the 'esModuleInterop' flag and using a default import."),
+        Cannot_augment_module_0_with_value_exports_because_it_resolves_to_a_non_module_entity: diag(2649, ts.DiagnosticCategory.Error, "Cannot_augment_module_0_with_value_exports_because_it_resolves_to_a_non_module_entity_2649", "Cannot augment module '{0}' with value exports because it resolves to a non-module entity."),
+        A_member_initializer_in_a_enum_declaration_cannot_reference_members_declared_after_it_including_members_defined_in_other_enums: diag(2651, ts.DiagnosticCategory.Error, "A_member_initializer_in_a_enum_declaration_cannot_reference_members_declared_after_it_including_memb_2651", "A member initializer in a enum declaration cannot reference members declared after it, including members defined in other enums."),
+        Merged_declaration_0_cannot_include_a_default_export_declaration_Consider_adding_a_separate_export_default_0_declaration_instead: diag(2652, ts.DiagnosticCategory.Error, "Merged_declaration_0_cannot_include_a_default_export_declaration_Consider_adding_a_separate_export_d_2652", "Merged declaration '{0}' cannot include a default export declaration. Consider adding a separate 'export default {0}' declaration instead."),
+        Non_abstract_class_expression_does_not_implement_inherited_abstract_member_0_from_class_1: diag(2653, ts.DiagnosticCategory.Error, "Non_abstract_class_expression_does_not_implement_inherited_abstract_member_0_from_class_1_2653", "Non-abstract class expression does not implement inherited abstract member '{0}' from class '{1}'."),
+        Exported_external_package_typings_file_cannot_contain_tripleslash_references_Please_contact_the_package_author_to_update_the_package_definition: diag(2654, ts.DiagnosticCategory.Error, "Exported_external_package_typings_file_cannot_contain_tripleslash_references_Please_contact_the_pack_2654", "Exported external package typings file cannot contain tripleslash references. Please contact the package author to update the package definition."),
+        Exported_external_package_typings_file_0_is_not_a_module_Please_contact_the_package_author_to_update_the_package_definition: diag(2656, ts.DiagnosticCategory.Error, "Exported_external_package_typings_file_0_is_not_a_module_Please_contact_the_package_author_to_update_2656", "Exported external package typings file '{0}' is not a module. Please contact the package author to update the package definition."),
+        JSX_expressions_must_have_one_parent_element: diag(2657, ts.DiagnosticCategory.Error, "JSX_expressions_must_have_one_parent_element_2657", "JSX expressions must have one parent element."),
+        Type_0_provides_no_match_for_the_signature_1: diag(2658, ts.DiagnosticCategory.Error, "Type_0_provides_no_match_for_the_signature_1_2658", "Type '{0}' provides no match for the signature '{1}'."),
+        super_is_only_allowed_in_members_of_object_literal_expressions_when_option_target_is_ES2015_or_higher: diag(2659, ts.DiagnosticCategory.Error, "super_is_only_allowed_in_members_of_object_literal_expressions_when_option_target_is_ES2015_or_highe_2659", "'super' is only allowed in members of object literal expressions when option 'target' is 'ES2015' or higher."),
+        super_can_only_be_referenced_in_members_of_derived_classes_or_object_literal_expressions: diag(2660, ts.DiagnosticCategory.Error, "super_can_only_be_referenced_in_members_of_derived_classes_or_object_literal_expressions_2660", "'super' can only be referenced in members of derived classes or object literal expressions."),
+        Cannot_export_0_Only_local_declarations_can_be_exported_from_a_module: diag(2661, ts.DiagnosticCategory.Error, "Cannot_export_0_Only_local_declarations_can_be_exported_from_a_module_2661", "Cannot export '{0}'. Only local declarations can be exported from a module."),
+        Cannot_find_name_0_Did_you_mean_the_static_member_1_0: diag(2662, ts.DiagnosticCategory.Error, "Cannot_find_name_0_Did_you_mean_the_static_member_1_0_2662", "Cannot find name '{0}'. Did you mean the static member '{1}.{0}'?"),
+        Cannot_find_name_0_Did_you_mean_the_instance_member_this_0: diag(2663, ts.DiagnosticCategory.Error, "Cannot_find_name_0_Did_you_mean_the_instance_member_this_0_2663", "Cannot find name '{0}'. Did you mean the instance member 'this.{0}'?"),
+        Invalid_module_name_in_augmentation_module_0_cannot_be_found: diag(2664, ts.DiagnosticCategory.Error, "Invalid_module_name_in_augmentation_module_0_cannot_be_found_2664", "Invalid module name in augmentation, module '{0}' cannot be found."),
+        Invalid_module_name_in_augmentation_Module_0_resolves_to_an_untyped_module_at_1_which_cannot_be_augmented: diag(2665, ts.DiagnosticCategory.Error, "Invalid_module_name_in_augmentation_Module_0_resolves_to_an_untyped_module_at_1_which_cannot_be_augm_2665", "Invalid module name in augmentation. Module '{0}' resolves to an untyped module at '{1}', which cannot be augmented."),
+        Exports_and_export_assignments_are_not_permitted_in_module_augmentations: diag(2666, ts.DiagnosticCategory.Error, "Exports_and_export_assignments_are_not_permitted_in_module_augmentations_2666", "Exports and export assignments are not permitted in module augmentations."),
+        Imports_are_not_permitted_in_module_augmentations_Consider_moving_them_to_the_enclosing_external_module: diag(2667, ts.DiagnosticCategory.Error, "Imports_are_not_permitted_in_module_augmentations_Consider_moving_them_to_the_enclosing_external_mod_2667", "Imports are not permitted in module augmentations. Consider moving them to the enclosing external module."),
+        export_modifier_cannot_be_applied_to_ambient_modules_and_module_augmentations_since_they_are_always_visible: diag(2668, ts.DiagnosticCategory.Error, "export_modifier_cannot_be_applied_to_ambient_modules_and_module_augmentations_since_they_are_always__2668", "'export' modifier cannot be applied to ambient modules and module augmentations since they are always visible."),
+        Augmentations_for_the_global_scope_can_only_be_directly_nested_in_external_modules_or_ambient_module_declarations: diag(2669, ts.DiagnosticCategory.Error, "Augmentations_for_the_global_scope_can_only_be_directly_nested_in_external_modules_or_ambient_module_2669", "Augmentations for the global scope can only be directly nested in external modules or ambient module declarations."),
+        Augmentations_for_the_global_scope_should_have_declare_modifier_unless_they_appear_in_already_ambient_context: diag(2670, ts.DiagnosticCategory.Error, "Augmentations_for_the_global_scope_should_have_declare_modifier_unless_they_appear_in_already_ambien_2670", "Augmentations for the global scope should have 'declare' modifier unless they appear in already ambient context."),
+        Cannot_augment_module_0_because_it_resolves_to_a_non_module_entity: diag(2671, ts.DiagnosticCategory.Error, "Cannot_augment_module_0_because_it_resolves_to_a_non_module_entity_2671", "Cannot augment module '{0}' because it resolves to a non-module entity."),
+        Cannot_assign_a_0_constructor_type_to_a_1_constructor_type: diag(2672, ts.DiagnosticCategory.Error, "Cannot_assign_a_0_constructor_type_to_a_1_constructor_type_2672", "Cannot assign a '{0}' constructor type to a '{1}' constructor type."),
+        Constructor_of_class_0_is_private_and_only_accessible_within_the_class_declaration: diag(2673, ts.DiagnosticCategory.Error, "Constructor_of_class_0_is_private_and_only_accessible_within_the_class_declaration_2673", "Constructor of class '{0}' is private and only accessible within the class declaration."),
+        Constructor_of_class_0_is_protected_and_only_accessible_within_the_class_declaration: diag(2674, ts.DiagnosticCategory.Error, "Constructor_of_class_0_is_protected_and_only_accessible_within_the_class_declaration_2674", "Constructor of class '{0}' is protected and only accessible within the class declaration."),
+        Cannot_extend_a_class_0_Class_constructor_is_marked_as_private: diag(2675, ts.DiagnosticCategory.Error, "Cannot_extend_a_class_0_Class_constructor_is_marked_as_private_2675", "Cannot extend a class '{0}'. Class constructor is marked as private."),
+        Accessors_must_both_be_abstract_or_non_abstract: diag(2676, ts.DiagnosticCategory.Error, "Accessors_must_both_be_abstract_or_non_abstract_2676", "Accessors must both be abstract or non-abstract."),
+        A_type_predicate_s_type_must_be_assignable_to_its_parameter_s_type: diag(2677, ts.DiagnosticCategory.Error, "A_type_predicate_s_type_must_be_assignable_to_its_parameter_s_type_2677", "A type predicate's type must be assignable to its parameter's type."),
+        Type_0_is_not_comparable_to_type_1: diag(2678, ts.DiagnosticCategory.Error, "Type_0_is_not_comparable_to_type_1_2678", "Type '{0}' is not comparable to type '{1}'."),
+        A_function_that_is_called_with_the_new_keyword_cannot_have_a_this_type_that_is_void: diag(2679, ts.DiagnosticCategory.Error, "A_function_that_is_called_with_the_new_keyword_cannot_have_a_this_type_that_is_void_2679", "A function that is called with the 'new' keyword cannot have a 'this' type that is 'void'."),
+        A_0_parameter_must_be_the_first_parameter: diag(2680, ts.DiagnosticCategory.Error, "A_0_parameter_must_be_the_first_parameter_2680", "A '{0}' parameter must be the first parameter."),
+        A_constructor_cannot_have_a_this_parameter: diag(2681, ts.DiagnosticCategory.Error, "A_constructor_cannot_have_a_this_parameter_2681", "A constructor cannot have a 'this' parameter."),
+        get_and_set_accessor_must_have_the_same_this_type: diag(2682, ts.DiagnosticCategory.Error, "get_and_set_accessor_must_have_the_same_this_type_2682", "'get' and 'set' accessor must have the same 'this' type."),
+        this_implicitly_has_type_any_because_it_does_not_have_a_type_annotation: diag(2683, ts.DiagnosticCategory.Error, "this_implicitly_has_type_any_because_it_does_not_have_a_type_annotation_2683", "'this' implicitly has type 'any' because it does not have a type annotation."),
+        The_this_context_of_type_0_is_not_assignable_to_method_s_this_of_type_1: diag(2684, ts.DiagnosticCategory.Error, "The_this_context_of_type_0_is_not_assignable_to_method_s_this_of_type_1_2684", "The 'this' context of type '{0}' is not assignable to method's 'this' of type '{1}'."),
+        The_this_types_of_each_signature_are_incompatible: diag(2685, ts.DiagnosticCategory.Error, "The_this_types_of_each_signature_are_incompatible_2685", "The 'this' types of each signature are incompatible."),
+        _0_refers_to_a_UMD_global_but_the_current_file_is_a_module_Consider_adding_an_import_instead: diag(2686, ts.DiagnosticCategory.Error, "_0_refers_to_a_UMD_global_but_the_current_file_is_a_module_Consider_adding_an_import_instead_2686", "'{0}' refers to a UMD global, but the current file is a module. Consider adding an import instead."),
+        All_declarations_of_0_must_have_identical_modifiers: diag(2687, ts.DiagnosticCategory.Error, "All_declarations_of_0_must_have_identical_modifiers_2687", "All declarations of '{0}' must have identical modifiers."),
+        Cannot_find_type_definition_file_for_0: diag(2688, ts.DiagnosticCategory.Error, "Cannot_find_type_definition_file_for_0_2688", "Cannot find type definition file for '{0}'."),
+        Cannot_extend_an_interface_0_Did_you_mean_implements: diag(2689, ts.DiagnosticCategory.Error, "Cannot_extend_an_interface_0_Did_you_mean_implements_2689", "Cannot extend an interface '{0}'. Did you mean 'implements'?"),
+        An_import_path_cannot_end_with_a_0_extension_Consider_importing_1_instead: diag(2691, ts.DiagnosticCategory.Error, "An_import_path_cannot_end_with_a_0_extension_Consider_importing_1_instead_2691", "An import path cannot end with a '{0}' extension. Consider importing '{1}' instead."),
+        _0_is_a_primitive_but_1_is_a_wrapper_object_Prefer_using_0_when_possible: diag(2692, ts.DiagnosticCategory.Error, "_0_is_a_primitive_but_1_is_a_wrapper_object_Prefer_using_0_when_possible_2692", "'{0}' is a primitive, but '{1}' is a wrapper object. Prefer using '{0}' when possible."),
+        _0_only_refers_to_a_type_but_is_being_used_as_a_value_here: diag(2693, ts.DiagnosticCategory.Error, "_0_only_refers_to_a_type_but_is_being_used_as_a_value_here_2693", "'{0}' only refers to a type, but is being used as a value here."),
+        Namespace_0_has_no_exported_member_1: diag(2694, ts.DiagnosticCategory.Error, "Namespace_0_has_no_exported_member_1_2694", "Namespace '{0}' has no exported member '{1}'."),
+        Left_side_of_comma_operator_is_unused_and_has_no_side_effects: diag(2695, ts.DiagnosticCategory.Error, "Left_side_of_comma_operator_is_unused_and_has_no_side_effects_2695", "Left side of comma operator is unused and has no side effects.", true),
+        The_Object_type_is_assignable_to_very_few_other_types_Did_you_mean_to_use_the_any_type_instead: diag(2696, ts.DiagnosticCategory.Error, "The_Object_type_is_assignable_to_very_few_other_types_Did_you_mean_to_use_the_any_type_instead_2696", "The 'Object' type is assignable to very few other types. Did you mean to use the 'any' type instead?"),
+        An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_include_ES2015_in_your_lib_option: diag(2697, ts.DiagnosticCategory.Error, "An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_in_2697", "An async function or method must return a 'Promise'. Make sure you have a declaration for 'Promise' or include 'ES2015' in your `--lib` option."),
+        Spread_types_may_only_be_created_from_object_types: diag(2698, ts.DiagnosticCategory.Error, "Spread_types_may_only_be_created_from_object_types_2698", "Spread types may only be created from object types."),
+        Static_property_0_conflicts_with_built_in_property_Function_0_of_constructor_function_1: diag(2699, ts.DiagnosticCategory.Error, "Static_property_0_conflicts_with_built_in_property_Function_0_of_constructor_function_1_2699", "Static property '{0}' conflicts with built-in property 'Function.{0}' of constructor function '{1}'."),
+        Rest_types_may_only_be_created_from_object_types: diag(2700, ts.DiagnosticCategory.Error, "Rest_types_may_only_be_created_from_object_types_2700", "Rest types may only be created from object types."),
+        The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access: diag(2701, ts.DiagnosticCategory.Error, "The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access_2701", "The target of an object rest assignment must be a variable or a property access."),
+        _0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here: diag(2702, ts.DiagnosticCategory.Error, "_0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here_2702", "'{0}' only refers to a type, but is being used as a namespace here."),
+        The_operand_of_a_delete_operator_must_be_a_property_reference: diag(2703, ts.DiagnosticCategory.Error, "The_operand_of_a_delete_operator_must_be_a_property_reference_2703", "The operand of a 'delete' operator must be a property reference."),
+        The_operand_of_a_delete_operator_cannot_be_a_read_only_property: diag(2704, ts.DiagnosticCategory.Error, "The_operand_of_a_delete_operator_cannot_be_a_read_only_property_2704", "The operand of a 'delete' operator cannot be a read-only property."),
+        An_async_function_or_method_in_ES5_SlashES3_requires_the_Promise_constructor_Make_sure_you_have_a_declaration_for_the_Promise_constructor_or_include_ES2015_in_your_lib_option: diag(2705, ts.DiagnosticCategory.Error, "An_async_function_or_method_in_ES5_SlashES3_requires_the_Promise_constructor_Make_sure_you_have_a_de_2705", "An async function or method in ES5/ES3 requires the 'Promise' constructor.  Make sure you have a declaration for the 'Promise' constructor or include 'ES2015' in your `--lib` option."),
+        Required_type_parameters_may_not_follow_optional_type_parameters: diag(2706, ts.DiagnosticCategory.Error, "Required_type_parameters_may_not_follow_optional_type_parameters_2706", "Required type parameters may not follow optional type parameters."),
+        Generic_type_0_requires_between_1_and_2_type_arguments: diag(2707, ts.DiagnosticCategory.Error, "Generic_type_0_requires_between_1_and_2_type_arguments_2707", "Generic type '{0}' requires between {1} and {2} type arguments."),
+        Cannot_use_namespace_0_as_a_value: diag(2708, ts.DiagnosticCategory.Error, "Cannot_use_namespace_0_as_a_value_2708", "Cannot use namespace '{0}' as a value."),
+        Cannot_use_namespace_0_as_a_type: diag(2709, ts.DiagnosticCategory.Error, "Cannot_use_namespace_0_as_a_type_2709", "Cannot use namespace '{0}' as a type."),
+        _0_are_specified_twice_The_attribute_named_0_will_be_overwritten: diag(2710, ts.DiagnosticCategory.Error, "_0_are_specified_twice_The_attribute_named_0_will_be_overwritten_2710", "'{0}' are specified twice. The attribute named '{0}' will be overwritten."),
+        A_dynamic_import_call_returns_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_include_ES2015_in_your_lib_option: diag(2711, ts.DiagnosticCategory.Error, "A_dynamic_import_call_returns_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_include_ES20_2711", "A dynamic import call returns a 'Promise'. Make sure you have a declaration for 'Promise' or include 'ES2015' in your `--lib` option."),
+        A_dynamic_import_call_in_ES5_SlashES3_requires_the_Promise_constructor_Make_sure_you_have_a_declaration_for_the_Promise_constructor_or_include_ES2015_in_your_lib_option: diag(2712, ts.DiagnosticCategory.Error, "A_dynamic_import_call_in_ES5_SlashES3_requires_the_Promise_constructor_Make_sure_you_have_a_declarat_2712", "A dynamic import call in ES5/ES3 requires the 'Promise' constructor.  Make sure you have a declaration for the 'Promise' constructor or include 'ES2015' in your `--lib` option."),
+        Cannot_access_0_1_because_0_is_a_type_but_not_a_namespace_Did_you_mean_to_retrieve_the_type_of_the_property_1_in_0_with_0_1: diag(2713, ts.DiagnosticCategory.Error, "Cannot_access_0_1_because_0_is_a_type_but_not_a_namespace_Did_you_mean_to_retrieve_the_type_of_the_p_2713", "Cannot access '{0}.{1}' because '{0}' is a type, but not a namespace. Did you mean to retrieve the type of the property '{1}' in '{0}' with '{0}[\"{1}\"]'?"),
+        The_expression_of_an_export_assignment_must_be_an_identifier_or_qualified_name_in_an_ambient_context: diag(2714, ts.DiagnosticCategory.Error, "The_expression_of_an_export_assignment_must_be_an_identifier_or_qualified_name_in_an_ambient_context_2714", "The expression of an export assignment must be an identifier or qualified name in an ambient context."),
+        Abstract_property_0_in_class_1_cannot_be_accessed_in_the_constructor: diag(2715, ts.DiagnosticCategory.Error, "Abstract_property_0_in_class_1_cannot_be_accessed_in_the_constructor_2715", "Abstract property '{0}' in class '{1}' cannot be accessed in the constructor."),
+        Type_parameter_0_has_a_circular_default: diag(2716, ts.DiagnosticCategory.Error, "Type_parameter_0_has_a_circular_default_2716", "Type parameter '{0}' has a circular default."),
+        Subsequent_property_declarations_must_have_the_same_type_Property_0_must_be_of_type_1_but_here_has_type_2: diag(2717, ts.DiagnosticCategory.Error, "Subsequent_property_declarations_must_have_the_same_type_Property_0_must_be_of_type_1_but_here_has_t_2717", "Subsequent property declarations must have the same type.  Property '{0}' must be of type '{1}', but here has type '{2}'."),
+        Duplicate_property_0: diag(2718, ts.DiagnosticCategory.Error, "Duplicate_property_0_2718", "Duplicate property '{0}'."),
+        Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated: diag(2719, ts.DiagnosticCategory.Error, "Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated_2719", "Type '{0}' is not assignable to type '{1}'. Two different types with this name exist, but they are unrelated."),
+        Class_0_incorrectly_implements_class_1_Did_you_mean_to_extend_1_and_inherit_its_members_as_a_subclass: diag(2720, ts.DiagnosticCategory.Error, "Class_0_incorrectly_implements_class_1_Did_you_mean_to_extend_1_and_inherit_its_members_as_a_subclas_2720", "Class '{0}' incorrectly implements class '{1}'. Did you mean to extend '{1}' and inherit its members as a subclass?"),
+        Cannot_invoke_an_object_which_is_possibly_null: diag(2721, ts.DiagnosticCategory.Error, "Cannot_invoke_an_object_which_is_possibly_null_2721", "Cannot invoke an object which is possibly 'null'."),
+        Cannot_invoke_an_object_which_is_possibly_undefined: diag(2722, ts.DiagnosticCategory.Error, "Cannot_invoke_an_object_which_is_possibly_undefined_2722", "Cannot invoke an object which is possibly 'undefined'."),
+        Cannot_invoke_an_object_which_is_possibly_null_or_undefined: diag(2723, ts.DiagnosticCategory.Error, "Cannot_invoke_an_object_which_is_possibly_null_or_undefined_2723", "Cannot invoke an object which is possibly 'null' or 'undefined'."),
+        Module_0_has_no_exported_member_1_Did_you_mean_2: diag(2724, ts.DiagnosticCategory.Error, "Module_0_has_no_exported_member_1_Did_you_mean_2_2724", "Module '{0}' has no exported member '{1}'. Did you mean '{2}'?"),
+        Class_name_cannot_be_Object_when_targeting_ES5_with_module_0: diag(2725, ts.DiagnosticCategory.Error, "Class_name_cannot_be_Object_when_targeting_ES5_with_module_0_2725", "Class name cannot be 'Object' when targeting ES5 with module {0}."),
+        Cannot_find_lib_definition_for_0: diag(2726, ts.DiagnosticCategory.Error, "Cannot_find_lib_definition_for_0_2726", "Cannot find lib definition for '{0}'."),
+        Cannot_find_lib_definition_for_0_Did_you_mean_1: diag(2727, ts.DiagnosticCategory.Error, "Cannot_find_lib_definition_for_0_Did_you_mean_1_2727", "Cannot find lib definition for '{0}'. Did you mean '{1}'?"),
+        _0_is_declared_here: diag(2728, ts.DiagnosticCategory.Message, "_0_is_declared_here_2728", "'{0}' is declared here."),
+        Property_0_is_used_before_its_initialization: diag(2729, ts.DiagnosticCategory.Error, "Property_0_is_used_before_its_initialization_2729", "Property '{0}' is used before its initialization."),
+        An_arrow_function_cannot_have_a_this_parameter: diag(2730, ts.DiagnosticCategory.Error, "An_arrow_function_cannot_have_a_this_parameter_2730", "An arrow function cannot have a 'this' parameter."),
+        Implicit_conversion_of_a_symbol_to_a_string_will_fail_at_runtime_Consider_wrapping_this_expression_in_String: diag(2731, ts.DiagnosticCategory.Error, "Implicit_conversion_of_a_symbol_to_a_string_will_fail_at_runtime_Consider_wrapping_this_expression_i_2731", "Implicit conversion of a 'symbol' to a 'string' will fail at runtime. Consider wrapping this expression in 'String(...)'."),
+        Cannot_find_module_0_Consider_using_resolveJsonModule_to_import_module_with_json_extension: diag(2732, ts.DiagnosticCategory.Error, "Cannot_find_module_0_Consider_using_resolveJsonModule_to_import_module_with_json_extension_2732", "Cannot find module '{0}'. Consider using '--resolveJsonModule' to import module with '.json' extension"),
+        Property_0_was_also_declared_here: diag(2733, ts.DiagnosticCategory.Error, "Property_0_was_also_declared_here_2733", "Property '{0}' was also declared here."),
+        Are_you_missing_a_semicolon: diag(2734, ts.DiagnosticCategory.Error, "Are_you_missing_a_semicolon_2734", "Are you missing a semicolon?"),
+        Did_you_mean_for_0_to_be_constrained_to_type_new_args_Colon_any_1: diag(2735, ts.DiagnosticCategory.Error, "Did_you_mean_for_0_to_be_constrained_to_type_new_args_Colon_any_1_2735", "Did you mean for '{0}' to be constrained to type 'new (...args: any[]) => {1}'?"),
+        Operator_0_cannot_be_applied_to_type_1: diag(2736, ts.DiagnosticCategory.Error, "Operator_0_cannot_be_applied_to_type_1_2736", "Operator '{0}' cannot be applied to type '{1}'."),
+        BigInt_literals_are_not_available_when_targeting_lower_than_ES2020: diag(2737, ts.DiagnosticCategory.Error, "BigInt_literals_are_not_available_when_targeting_lower_than_ES2020_2737", "BigInt literals are not available when targeting lower than ES2020."),
+        An_outer_value_of_this_is_shadowed_by_this_container: diag(2738, ts.DiagnosticCategory.Message, "An_outer_value_of_this_is_shadowed_by_this_container_2738", "An outer value of 'this' is shadowed by this container."),
+        Type_0_is_missing_the_following_properties_from_type_1_Colon_2: diag(2739, ts.DiagnosticCategory.Error, "Type_0_is_missing_the_following_properties_from_type_1_Colon_2_2739", "Type '{0}' is missing the following properties from type '{1}': {2}"),
+        Type_0_is_missing_the_following_properties_from_type_1_Colon_2_and_3_more: diag(2740, ts.DiagnosticCategory.Error, "Type_0_is_missing_the_following_properties_from_type_1_Colon_2_and_3_more_2740", "Type '{0}' is missing the following properties from type '{1}': {2}, and {3} more."),
+        Property_0_is_missing_in_type_1_but_required_in_type_2: diag(2741, ts.DiagnosticCategory.Error, "Property_0_is_missing_in_type_1_but_required_in_type_2_2741", "Property '{0}' is missing in type '{1}' but required in type '{2}'."),
+        The_inferred_type_of_0_cannot_be_named_without_a_reference_to_1_This_is_likely_not_portable_A_type_annotation_is_necessary: diag(2742, ts.DiagnosticCategory.Error, "The_inferred_type_of_0_cannot_be_named_without_a_reference_to_1_This_is_likely_not_portable_A_type_a_2742", "The inferred type of '{0}' cannot be named without a reference to '{1}'. This is likely not portable. A type annotation is necessary."),
+        No_overload_expects_0_type_arguments_but_overloads_do_exist_that_expect_either_1_or_2_type_arguments: diag(2743, ts.DiagnosticCategory.Error, "No_overload_expects_0_type_arguments_but_overloads_do_exist_that_expect_either_1_or_2_type_arguments_2743", "No overload expects {0} type arguments, but overloads do exist that expect either {1} or {2} type arguments."),
+        Type_parameter_defaults_can_only_reference_previously_declared_type_parameters: diag(2744, ts.DiagnosticCategory.Error, "Type_parameter_defaults_can_only_reference_previously_declared_type_parameters_2744", "Type parameter defaults can only reference previously declared type parameters."),
+        This_JSX_tag_s_0_prop_expects_type_1_which_requires_multiple_children_but_only_a_single_child_was_provided: diag(2745, ts.DiagnosticCategory.Error, "This_JSX_tag_s_0_prop_expects_type_1_which_requires_multiple_children_but_only_a_single_child_was_pr_2745", "This JSX tag's '{0}' prop expects type '{1}' which requires multiple children, but only a single child was provided."),
+        This_JSX_tag_s_0_prop_expects_a_single_child_of_type_1_but_multiple_children_were_provided: diag(2746, ts.DiagnosticCategory.Error, "This_JSX_tag_s_0_prop_expects_a_single_child_of_type_1_but_multiple_children_were_provided_2746", "This JSX tag's '{0}' prop expects a single child of type '{1}', but multiple children were provided."),
+        _0_components_don_t_accept_text_as_child_elements_Text_in_JSX_has_the_type_string_but_the_expected_type_of_1_is_2: diag(2747, ts.DiagnosticCategory.Error, "_0_components_don_t_accept_text_as_child_elements_Text_in_JSX_has_the_type_string_but_the_expected_t_2747", "'{0}' components don't accept text as child elements. Text in JSX has the type 'string', but the expected type of '{1}' is '{2}'."),
+        Cannot_access_ambient_const_enums_when_the_isolatedModules_flag_is_provided: diag(2748, ts.DiagnosticCategory.Error, "Cannot_access_ambient_const_enums_when_the_isolatedModules_flag_is_provided_2748", "Cannot access ambient const enums when the '--isolatedModules' flag is provided."),
+        _0_refers_to_a_value_but_is_being_used_as_a_type_here_Did_you_mean_typeof_0: diag(2749, ts.DiagnosticCategory.Error, "_0_refers_to_a_value_but_is_being_used_as_a_type_here_Did_you_mean_typeof_0_2749", "'{0}' refers to a value, but is being used as a type here. Did you mean 'typeof {0}'?"),
+        The_implementation_signature_is_declared_here: diag(2750, ts.DiagnosticCategory.Error, "The_implementation_signature_is_declared_here_2750", "The implementation signature is declared here."),
+        Circularity_originates_in_type_at_this_location: diag(2751, ts.DiagnosticCategory.Error, "Circularity_originates_in_type_at_this_location_2751", "Circularity originates in type at this location."),
+        The_first_export_default_is_here: diag(2752, ts.DiagnosticCategory.Error, "The_first_export_default_is_here_2752", "The first export default is here."),
+        Another_export_default_is_here: diag(2753, ts.DiagnosticCategory.Error, "Another_export_default_is_here_2753", "Another export default is here."),
+        super_may_not_use_type_arguments: diag(2754, ts.DiagnosticCategory.Error, "super_may_not_use_type_arguments_2754", "'super' may not use type arguments."),
+        No_constituent_of_type_0_is_callable: diag(2755, ts.DiagnosticCategory.Error, "No_constituent_of_type_0_is_callable_2755", "No constituent of type '{0}' is callable."),
+        Not_all_constituents_of_type_0_are_callable: diag(2756, ts.DiagnosticCategory.Error, "Not_all_constituents_of_type_0_are_callable_2756", "Not all constituents of type '{0}' are callable."),
+        Type_0_has_no_call_signatures: diag(2757, ts.DiagnosticCategory.Error, "Type_0_has_no_call_signatures_2757", "Type '{0}' has no call signatures."),
+        Each_member_of_the_union_type_0_has_signatures_but_none_of_those_signatures_are_compatible_with_each_other: diag(2758, ts.DiagnosticCategory.Error, "Each_member_of_the_union_type_0_has_signatures_but_none_of_those_signatures_are_compatible_with_each_2758", "Each member of the union type '{0}' has signatures, but none of those signatures are compatible with each other."),
+        No_constituent_of_type_0_is_constructable: diag(2759, ts.DiagnosticCategory.Error, "No_constituent_of_type_0_is_constructable_2759", "No constituent of type '{0}' is constructable."),
+        Not_all_constituents_of_type_0_are_constructable: diag(2760, ts.DiagnosticCategory.Error, "Not_all_constituents_of_type_0_are_constructable_2760", "Not all constituents of type '{0}' are constructable."),
+        Type_0_has_no_construct_signatures: diag(2761, ts.DiagnosticCategory.Error, "Type_0_has_no_construct_signatures_2761", "Type '{0}' has no construct signatures."),
+        Each_member_of_the_union_type_0_has_construct_signatures_but_none_of_those_signatures_are_compatible_with_each_other: diag(2762, ts.DiagnosticCategory.Error, "Each_member_of_the_union_type_0_has_construct_signatures_but_none_of_those_signatures_are_compatible_2762", "Each member of the union type '{0}' has construct signatures, but none of those signatures are compatible with each other."),
+        Cannot_iterate_value_because_the_next_method_of_its_iterator_expects_type_1_but_for_of_will_always_send_0: diag(2763, ts.DiagnosticCategory.Error, "Cannot_iterate_value_because_the_next_method_of_its_iterator_expects_type_1_but_for_of_will_always_s_2763", "Cannot iterate value because the 'next' method of its iterator expects type '{1}', but for-of will always send '{0}'."),
+        Cannot_iterate_value_because_the_next_method_of_its_iterator_expects_type_1_but_array_spread_will_always_send_0: diag(2764, ts.DiagnosticCategory.Error, "Cannot_iterate_value_because_the_next_method_of_its_iterator_expects_type_1_but_array_spread_will_al_2764", "Cannot iterate value because the 'next' method of its iterator expects type '{1}', but array spread will always send '{0}'."),
+        Cannot_iterate_value_because_the_next_method_of_its_iterator_expects_type_1_but_array_destructuring_will_always_send_0: diag(2765, ts.DiagnosticCategory.Error, "Cannot_iterate_value_because_the_next_method_of_its_iterator_expects_type_1_but_array_destructuring__2765", "Cannot iterate value because the 'next' method of its iterator expects type '{1}', but array destructuring will always send '{0}'."),
+        Cannot_delegate_iteration_to_value_because_the_next_method_of_its_iterator_expects_type_1_but_the_containing_generator_will_always_send_0: diag(2766, ts.DiagnosticCategory.Error, "Cannot_delegate_iteration_to_value_because_the_next_method_of_its_iterator_expects_type_1_but_the_co_2766", "Cannot delegate iteration to value because the 'next' method of its iterator expects type '{1}', but the containing generator will always send '{0}'."),
+        The_0_property_of_an_iterator_must_be_a_method: diag(2767, ts.DiagnosticCategory.Error, "The_0_property_of_an_iterator_must_be_a_method_2767", "The '{0}' property of an iterator must be a method."),
+        The_0_property_of_an_async_iterator_must_be_a_method: diag(2768, ts.DiagnosticCategory.Error, "The_0_property_of_an_async_iterator_must_be_a_method_2768", "The '{0}' property of an async iterator must be a method."),
+        No_overload_matches_this_call: diag(2769, ts.DiagnosticCategory.Error, "No_overload_matches_this_call_2769", "No overload matches this call."),
+        The_last_overload_gave_the_following_error: diag(2770, ts.DiagnosticCategory.Error, "The_last_overload_gave_the_following_error_2770", "The last overload gave the following error."),
+        The_last_overload_is_declared_here: diag(2771, ts.DiagnosticCategory.Error, "The_last_overload_is_declared_here_2771", "The last overload is declared here."),
+        Overload_0_of_1_2_gave_the_following_error: diag(2772, ts.DiagnosticCategory.Error, "Overload_0_of_1_2_gave_the_following_error_2772", "Overload {0} of {1}, '{2}', gave the following error."),
+        Did_you_forget_to_use_await: diag(2773, ts.DiagnosticCategory.Error, "Did_you_forget_to_use_await_2773", "Did you forget to use 'await'?"),
+        This_condition_will_always_return_true_since_the_function_is_always_defined_Did_you_mean_to_call_it_instead: diag(2774, ts.DiagnosticCategory.Error, "This_condition_will_always_return_true_since_the_function_is_always_defined_Did_you_mean_to_call_it__2774", "This condition will always return true since the function is always defined. Did you mean to call it instead?"),
+        Assertions_require_every_name_in_the_call_target_to_be_declared_with_an_explicit_type_annotation: diag(2775, ts.DiagnosticCategory.Error, "Assertions_require_every_name_in_the_call_target_to_be_declared_with_an_explicit_type_annotation_2775", "Assertions require every name in the call target to be declared with an explicit type annotation."),
+        Assertions_require_the_call_target_to_be_an_identifier_or_qualified_name: diag(2776, ts.DiagnosticCategory.Error, "Assertions_require_the_call_target_to_be_an_identifier_or_qualified_name_2776", "Assertions require the call target to be an identifier or qualified name."),
+        The_operand_of_an_increment_or_decrement_operator_may_not_be_an_optional_property_access: diag(2777, ts.DiagnosticCategory.Error, "The_operand_of_an_increment_or_decrement_operator_may_not_be_an_optional_property_access_2777", "The operand of an increment or decrement operator may not be an optional property access."),
+        The_target_of_an_object_rest_assignment_may_not_be_an_optional_property_access: diag(2778, ts.DiagnosticCategory.Error, "The_target_of_an_object_rest_assignment_may_not_be_an_optional_property_access_2778", "The target of an object rest assignment may not be an optional property access."),
+        The_left_hand_side_of_an_assignment_expression_may_not_be_an_optional_property_access: diag(2779, ts.DiagnosticCategory.Error, "The_left_hand_side_of_an_assignment_expression_may_not_be_an_optional_property_access_2779", "The left-hand side of an assignment expression may not be an optional property access."),
+        The_left_hand_side_of_a_for_in_statement_may_not_be_an_optional_property_access: diag(2780, ts.DiagnosticCategory.Error, "The_left_hand_side_of_a_for_in_statement_may_not_be_an_optional_property_access_2780", "The left-hand side of a 'for...in' statement may not be an optional property access."),
+        The_left_hand_side_of_a_for_of_statement_may_not_be_an_optional_property_access: diag(2781, ts.DiagnosticCategory.Error, "The_left_hand_side_of_a_for_of_statement_may_not_be_an_optional_property_access_2781", "The left-hand side of a 'for...of' statement may not be an optional property access."),
+        _0_needs_an_explicit_type_annotation: diag(2782, ts.DiagnosticCategory.Message, "_0_needs_an_explicit_type_annotation_2782", "'{0}' needs an explicit type annotation."),
+        _0_is_specified_more_than_once_so_this_usage_will_be_overwritten: diag(2783, ts.DiagnosticCategory.Error, "_0_is_specified_more_than_once_so_this_usage_will_be_overwritten_2783", "'{0}' is specified more than once, so this usage will be overwritten."),
+        get_and_set_accessors_cannot_declare_this_parameters: diag(2784, ts.DiagnosticCategory.Error, "get_and_set_accessors_cannot_declare_this_parameters_2784", "'get' and 'set' accessors cannot declare 'this' parameters."),
+        This_spread_always_overwrites_this_property: diag(2785, ts.DiagnosticCategory.Error, "This_spread_always_overwrites_this_property_2785", "This spread always overwrites this property."),
+        _0_cannot_be_used_as_a_JSX_component: diag(2786, ts.DiagnosticCategory.Error, "_0_cannot_be_used_as_a_JSX_component_2786", "'{0}' cannot be used as a JSX component."),
+        Its_return_type_0_is_not_a_valid_JSX_element: diag(2787, ts.DiagnosticCategory.Error, "Its_return_type_0_is_not_a_valid_JSX_element_2787", "Its return type '{0}' is not a valid JSX element."),
+        Its_instance_type_0_is_not_a_valid_JSX_element: diag(2788, ts.DiagnosticCategory.Error, "Its_instance_type_0_is_not_a_valid_JSX_element_2788", "Its instance type '{0}' is not a valid JSX element."),
+        Its_element_type_0_is_not_a_valid_JSX_element: diag(2789, ts.DiagnosticCategory.Error, "Its_element_type_0_is_not_a_valid_JSX_element_2789", "Its element type '{0}' is not a valid JSX element."),
+        Import_declaration_0_is_using_private_name_1: diag(4000, ts.DiagnosticCategory.Error, "Import_declaration_0_is_using_private_name_1_4000", "Import declaration '{0}' is using private name '{1}'."),
+        Type_parameter_0_of_exported_class_has_or_is_using_private_name_1: diag(4002, ts.DiagnosticCategory.Error, "Type_parameter_0_of_exported_class_has_or_is_using_private_name_1_4002", "Type parameter '{0}' of exported class has or is using private name '{1}'."),
+        Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1: diag(4004, ts.DiagnosticCategory.Error, "Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1_4004", "Type parameter '{0}' of exported interface has or is using private name '{1}'."),
+        Type_parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1: diag(4006, ts.DiagnosticCategory.Error, "Type_parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1_4006", "Type parameter '{0}' of constructor signature from exported interface has or is using private name '{1}'."),
+        Type_parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1: diag(4008, ts.DiagnosticCategory.Error, "Type_parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1_4008", "Type parameter '{0}' of call signature from exported interface has or is using private name '{1}'."),
+        Type_parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1: diag(4010, ts.DiagnosticCategory.Error, "Type_parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1_4010", "Type parameter '{0}' of public static method from exported class has or is using private name '{1}'."),
+        Type_parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1: diag(4012, ts.DiagnosticCategory.Error, "Type_parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1_4012", "Type parameter '{0}' of public method from exported class has or is using private name '{1}'."),
+        Type_parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1: diag(4014, ts.DiagnosticCategory.Error, "Type_parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1_4014", "Type parameter '{0}' of method from exported interface has or is using private name '{1}'."),
+        Type_parameter_0_of_exported_function_has_or_is_using_private_name_1: diag(4016, ts.DiagnosticCategory.Error, "Type_parameter_0_of_exported_function_has_or_is_using_private_name_1_4016", "Type parameter '{0}' of exported function has or is using private name '{1}'."),
+        Implements_clause_of_exported_class_0_has_or_is_using_private_name_1: diag(4019, ts.DiagnosticCategory.Error, "Implements_clause_of_exported_class_0_has_or_is_using_private_name_1_4019", "Implements clause of exported class '{0}' has or is using private name '{1}'."),
+        extends_clause_of_exported_class_0_has_or_is_using_private_name_1: diag(4020, ts.DiagnosticCategory.Error, "extends_clause_of_exported_class_0_has_or_is_using_private_name_1_4020", "'extends' clause of exported class '{0}' has or is using private name '{1}'."),
+        extends_clause_of_exported_interface_0_has_or_is_using_private_name_1: diag(4022, ts.DiagnosticCategory.Error, "extends_clause_of_exported_interface_0_has_or_is_using_private_name_1_4022", "'extends' clause of exported interface '{0}' has or is using private name '{1}'."),
+        Exported_variable_0_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: diag(4023, ts.DiagnosticCategory.Error, "Exported_variable_0_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named_4023", "Exported variable '{0}' has or is using name '{1}' from external module {2} but cannot be named."),
+        Exported_variable_0_has_or_is_using_name_1_from_private_module_2: diag(4024, ts.DiagnosticCategory.Error, "Exported_variable_0_has_or_is_using_name_1_from_private_module_2_4024", "Exported variable '{0}' has or is using name '{1}' from private module '{2}'."),
+        Exported_variable_0_has_or_is_using_private_name_1: diag(4025, ts.DiagnosticCategory.Error, "Exported_variable_0_has_or_is_using_private_name_1_4025", "Exported variable '{0}' has or is using private name '{1}'."),
+        Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: diag(4026, ts.DiagnosticCategory.Error, "Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot__4026", "Public static property '{0}' of exported class has or is using name '{1}' from external module {2} but cannot be named."),
+        Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2: diag(4027, ts.DiagnosticCategory.Error, "Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2_4027", "Public static property '{0}' of exported class has or is using name '{1}' from private module '{2}'."),
+        Public_static_property_0_of_exported_class_has_or_is_using_private_name_1: diag(4028, ts.DiagnosticCategory.Error, "Public_static_property_0_of_exported_class_has_or_is_using_private_name_1_4028", "Public static property '{0}' of exported class has or is using private name '{1}'."),
+        Public_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: diag(4029, ts.DiagnosticCategory.Error, "Public_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_name_4029", "Public property '{0}' of exported class has or is using name '{1}' from external module {2} but cannot be named."),
+        Public_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2: diag(4030, ts.DiagnosticCategory.Error, "Public_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2_4030", "Public property '{0}' of exported class has or is using name '{1}' from private module '{2}'."),
+        Public_property_0_of_exported_class_has_or_is_using_private_name_1: diag(4031, ts.DiagnosticCategory.Error, "Public_property_0_of_exported_class_has_or_is_using_private_name_1_4031", "Public property '{0}' of exported class has or is using private name '{1}'."),
+        Property_0_of_exported_interface_has_or_is_using_name_1_from_private_module_2: diag(4032, ts.DiagnosticCategory.Error, "Property_0_of_exported_interface_has_or_is_using_name_1_from_private_module_2_4032", "Property '{0}' of exported interface has or is using name '{1}' from private module '{2}'."),
+        Property_0_of_exported_interface_has_or_is_using_private_name_1: diag(4033, ts.DiagnosticCategory.Error, "Property_0_of_exported_interface_has_or_is_using_private_name_1_4033", "Property '{0}' of exported interface has or is using private name '{1}'."),
+        Parameter_type_of_public_static_setter_0_from_exported_class_has_or_is_using_name_1_from_private_module_2: diag(4034, ts.DiagnosticCategory.Error, "Parameter_type_of_public_static_setter_0_from_exported_class_has_or_is_using_name_1_from_private_mod_4034", "Parameter type of public static setter '{0}' from exported class has or is using name '{1}' from private module '{2}'."),
+        Parameter_type_of_public_static_setter_0_from_exported_class_has_or_is_using_private_name_1: diag(4035, ts.DiagnosticCategory.Error, "Parameter_type_of_public_static_setter_0_from_exported_class_has_or_is_using_private_name_1_4035", "Parameter type of public static setter '{0}' from exported class has or is using private name '{1}'."),
+        Parameter_type_of_public_setter_0_from_exported_class_has_or_is_using_name_1_from_private_module_2: diag(4036, ts.DiagnosticCategory.Error, "Parameter_type_of_public_setter_0_from_exported_class_has_or_is_using_name_1_from_private_module_2_4036", "Parameter type of public setter '{0}' from exported class has or is using name '{1}' from private module '{2}'."),
+        Parameter_type_of_public_setter_0_from_exported_class_has_or_is_using_private_name_1: diag(4037, ts.DiagnosticCategory.Error, "Parameter_type_of_public_setter_0_from_exported_class_has_or_is_using_private_name_1_4037", "Parameter type of public setter '{0}' from exported class has or is using private name '{1}'."),
+        Return_type_of_public_static_getter_0_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: diag(4038, ts.DiagnosticCategory.Error, "Return_type_of_public_static_getter_0_from_exported_class_has_or_is_using_name_1_from_external_modul_4038", "Return type of public static getter '{0}' from exported class has or is using name '{1}' from external module {2} but cannot be named."),
+        Return_type_of_public_static_getter_0_from_exported_class_has_or_is_using_name_1_from_private_module_2: diag(4039, ts.DiagnosticCategory.Error, "Return_type_of_public_static_getter_0_from_exported_class_has_or_is_using_name_1_from_private_module_4039", "Return type of public static getter '{0}' from exported class has or is using name '{1}' from private module '{2}'."),
+        Return_type_of_public_static_getter_0_from_exported_class_has_or_is_using_private_name_1: diag(4040, ts.DiagnosticCategory.Error, "Return_type_of_public_static_getter_0_from_exported_class_has_or_is_using_private_name_1_4040", "Return type of public static getter '{0}' from exported class has or is using private name '{1}'."),
+        Return_type_of_public_getter_0_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: diag(4041, ts.DiagnosticCategory.Error, "Return_type_of_public_getter_0_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_4041", "Return type of public getter '{0}' from exported class has or is using name '{1}' from external module {2} but cannot be named."),
+        Return_type_of_public_getter_0_from_exported_class_has_or_is_using_name_1_from_private_module_2: diag(4042, ts.DiagnosticCategory.Error, "Return_type_of_public_getter_0_from_exported_class_has_or_is_using_name_1_from_private_module_2_4042", "Return type of public getter '{0}' from exported class has or is using name '{1}' from private module '{2}'."),
+        Return_type_of_public_getter_0_from_exported_class_has_or_is_using_private_name_1: diag(4043, ts.DiagnosticCategory.Error, "Return_type_of_public_getter_0_from_exported_class_has_or_is_using_private_name_1_4043", "Return type of public getter '{0}' from exported class has or is using private name '{1}'."),
+        Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1: diag(4044, ts.DiagnosticCategory.Error, "Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_name_0_from_private_mod_4044", "Return type of constructor signature from exported interface has or is using name '{0}' from private module '{1}'."),
+        Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_0: diag(4045, ts.DiagnosticCategory.Error, "Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_0_4045", "Return type of constructor signature from exported interface has or is using private name '{0}'."),
+        Return_type_of_call_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1: diag(4046, ts.DiagnosticCategory.Error, "Return_type_of_call_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1_4046", "Return type of call signature from exported interface has or is using name '{0}' from private module '{1}'."),
+        Return_type_of_call_signature_from_exported_interface_has_or_is_using_private_name_0: diag(4047, ts.DiagnosticCategory.Error, "Return_type_of_call_signature_from_exported_interface_has_or_is_using_private_name_0_4047", "Return type of call signature from exported interface has or is using private name '{0}'."),
+        Return_type_of_index_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1: diag(4048, ts.DiagnosticCategory.Error, "Return_type_of_index_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1_4048", "Return type of index signature from exported interface has or is using name '{0}' from private module '{1}'."),
+        Return_type_of_index_signature_from_exported_interface_has_or_is_using_private_name_0: diag(4049, ts.DiagnosticCategory.Error, "Return_type_of_index_signature_from_exported_interface_has_or_is_using_private_name_0_4049", "Return type of index signature from exported interface has or is using private name '{0}'."),
+        Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: diag(4050, ts.DiagnosticCategory.Error, "Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_external_module__4050", "Return type of public static method from exported class has or is using name '{0}' from external module {1} but cannot be named."),
+        Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_private_module_1: diag(4051, ts.DiagnosticCategory.Error, "Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_private_module_1_4051", "Return type of public static method from exported class has or is using name '{0}' from private module '{1}'."),
+        Return_type_of_public_static_method_from_exported_class_has_or_is_using_private_name_0: diag(4052, ts.DiagnosticCategory.Error, "Return_type_of_public_static_method_from_exported_class_has_or_is_using_private_name_0_4052", "Return type of public static method from exported class has or is using private name '{0}'."),
+        Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: diag(4053, ts.DiagnosticCategory.Error, "Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_c_4053", "Return type of public method from exported class has or is using name '{0}' from external module {1} but cannot be named."),
+        Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_private_module_1: diag(4054, ts.DiagnosticCategory.Error, "Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_private_module_1_4054", "Return type of public method from exported class has or is using name '{0}' from private module '{1}'."),
+        Return_type_of_public_method_from_exported_class_has_or_is_using_private_name_0: diag(4055, ts.DiagnosticCategory.Error, "Return_type_of_public_method_from_exported_class_has_or_is_using_private_name_0_4055", "Return type of public method from exported class has or is using private name '{0}'."),
+        Return_type_of_method_from_exported_interface_has_or_is_using_name_0_from_private_module_1: diag(4056, ts.DiagnosticCategory.Error, "Return_type_of_method_from_exported_interface_has_or_is_using_name_0_from_private_module_1_4056", "Return type of method from exported interface has or is using name '{0}' from private module '{1}'."),
+        Return_type_of_method_from_exported_interface_has_or_is_using_private_name_0: diag(4057, ts.DiagnosticCategory.Error, "Return_type_of_method_from_exported_interface_has_or_is_using_private_name_0_4057", "Return type of method from exported interface has or is using private name '{0}'."),
+        Return_type_of_exported_function_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: diag(4058, ts.DiagnosticCategory.Error, "Return_type_of_exported_function_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named_4058", "Return type of exported function has or is using name '{0}' from external module {1} but cannot be named."),
+        Return_type_of_exported_function_has_or_is_using_name_0_from_private_module_1: diag(4059, ts.DiagnosticCategory.Error, "Return_type_of_exported_function_has_or_is_using_name_0_from_private_module_1_4059", "Return type of exported function has or is using name '{0}' from private module '{1}'."),
+        Return_type_of_exported_function_has_or_is_using_private_name_0: diag(4060, ts.DiagnosticCategory.Error, "Return_type_of_exported_function_has_or_is_using_private_name_0_4060", "Return type of exported function has or is using private name '{0}'."),
+        Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: diag(4061, ts.DiagnosticCategory.Error, "Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_can_4061", "Parameter '{0}' of constructor from exported class has or is using name '{1}' from external module {2} but cannot be named."),
+        Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_private_module_2: diag(4062, ts.DiagnosticCategory.Error, "Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_private_module_2_4062", "Parameter '{0}' of constructor from exported class has or is using name '{1}' from private module '{2}'."),
+        Parameter_0_of_constructor_from_exported_class_has_or_is_using_private_name_1: diag(4063, ts.DiagnosticCategory.Error, "Parameter_0_of_constructor_from_exported_class_has_or_is_using_private_name_1_4063", "Parameter '{0}' of constructor from exported class has or is using private name '{1}'."),
+        Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2: diag(4064, ts.DiagnosticCategory.Error, "Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_name_1_from_private_mod_4064", "Parameter '{0}' of constructor signature from exported interface has or is using name '{1}' from private module '{2}'."),
+        Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1: diag(4065, ts.DiagnosticCategory.Error, "Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1_4065", "Parameter '{0}' of constructor signature from exported interface has or is using private name '{1}'."),
+        Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2: diag(4066, ts.DiagnosticCategory.Error, "Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2_4066", "Parameter '{0}' of call signature from exported interface has or is using name '{1}' from private module '{2}'."),
+        Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1: diag(4067, ts.DiagnosticCategory.Error, "Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1_4067", "Parameter '{0}' of call signature from exported interface has or is using private name '{1}'."),
+        Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: diag(4068, ts.DiagnosticCategory.Error, "Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_external_module__4068", "Parameter '{0}' of public static method from exported class has or is using name '{1}' from external module {2} but cannot be named."),
+        Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_private_module_2: diag(4069, ts.DiagnosticCategory.Error, "Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_private_module_2_4069", "Parameter '{0}' of public static method from exported class has or is using name '{1}' from private module '{2}'."),
+        Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1: diag(4070, ts.DiagnosticCategory.Error, "Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1_4070", "Parameter '{0}' of public static method from exported class has or is using private name '{1}'."),
+        Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: diag(4071, ts.DiagnosticCategory.Error, "Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_c_4071", "Parameter '{0}' of public method from exported class has or is using name '{1}' from external module {2} but cannot be named."),
+        Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_private_module_2: diag(4072, ts.DiagnosticCategory.Error, "Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_private_module_2_4072", "Parameter '{0}' of public method from exported class has or is using name '{1}' from private module '{2}'."),
+        Parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1: diag(4073, ts.DiagnosticCategory.Error, "Parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1_4073", "Parameter '{0}' of public method from exported class has or is using private name '{1}'."),
+        Parameter_0_of_method_from_exported_interface_has_or_is_using_name_1_from_private_module_2: diag(4074, ts.DiagnosticCategory.Error, "Parameter_0_of_method_from_exported_interface_has_or_is_using_name_1_from_private_module_2_4074", "Parameter '{0}' of method from exported interface has or is using name '{1}' from private module '{2}'."),
+        Parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1: diag(4075, ts.DiagnosticCategory.Error, "Parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1_4075", "Parameter '{0}' of method from exported interface has or is using private name '{1}'."),
+        Parameter_0_of_exported_function_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: diag(4076, ts.DiagnosticCategory.Error, "Parameter_0_of_exported_function_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named_4076", "Parameter '{0}' of exported function has or is using name '{1}' from external module {2} but cannot be named."),
+        Parameter_0_of_exported_function_has_or_is_using_name_1_from_private_module_2: diag(4077, ts.DiagnosticCategory.Error, "Parameter_0_of_exported_function_has_or_is_using_name_1_from_private_module_2_4077", "Parameter '{0}' of exported function has or is using name '{1}' from private module '{2}'."),
+        Parameter_0_of_exported_function_has_or_is_using_private_name_1: diag(4078, ts.DiagnosticCategory.Error, "Parameter_0_of_exported_function_has_or_is_using_private_name_1_4078", "Parameter '{0}' of exported function has or is using private name '{1}'."),
+        Exported_type_alias_0_has_or_is_using_private_name_1: diag(4081, ts.DiagnosticCategory.Error, "Exported_type_alias_0_has_or_is_using_private_name_1_4081", "Exported type alias '{0}' has or is using private name '{1}'."),
+        Default_export_of_the_module_has_or_is_using_private_name_0: diag(4082, ts.DiagnosticCategory.Error, "Default_export_of_the_module_has_or_is_using_private_name_0_4082", "Default export of the module has or is using private name '{0}'."),
+        Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1: diag(4083, ts.DiagnosticCategory.Error, "Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1_4083", "Type parameter '{0}' of exported type alias has or is using private name '{1}'."),
+        Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_library_to_resolve_the_conflict: diag(4090, ts.DiagnosticCategory.Error, "Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_librar_4090", "Conflicting definitions for '{0}' found at '{1}' and '{2}'. Consider installing a specific version of this library to resolve the conflict."),
+        Parameter_0_of_index_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2: diag(4091, ts.DiagnosticCategory.Error, "Parameter_0_of_index_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2_4091", "Parameter '{0}' of index signature from exported interface has or is using name '{1}' from private module '{2}'."),
+        Parameter_0_of_index_signature_from_exported_interface_has_or_is_using_private_name_1: diag(4092, ts.DiagnosticCategory.Error, "Parameter_0_of_index_signature_from_exported_interface_has_or_is_using_private_name_1_4092", "Parameter '{0}' of index signature from exported interface has or is using private name '{1}'."),
+        Property_0_of_exported_class_expression_may_not_be_private_or_protected: diag(4094, ts.DiagnosticCategory.Error, "Property_0_of_exported_class_expression_may_not_be_private_or_protected_4094", "Property '{0}' of exported class expression may not be private or protected."),
+        Public_static_method_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: diag(4095, ts.DiagnosticCategory.Error, "Public_static_method_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_4095", "Public static method '{0}' of exported class has or is using name '{1}' from external module {2} but cannot be named."),
+        Public_static_method_0_of_exported_class_has_or_is_using_name_1_from_private_module_2: diag(4096, ts.DiagnosticCategory.Error, "Public_static_method_0_of_exported_class_has_or_is_using_name_1_from_private_module_2_4096", "Public static method '{0}' of exported class has or is using name '{1}' from private module '{2}'."),
+        Public_static_method_0_of_exported_class_has_or_is_using_private_name_1: diag(4097, ts.DiagnosticCategory.Error, "Public_static_method_0_of_exported_class_has_or_is_using_private_name_1_4097", "Public static method '{0}' of exported class has or is using private name '{1}'."),
+        Public_method_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: diag(4098, ts.DiagnosticCategory.Error, "Public_method_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named_4098", "Public method '{0}' of exported class has or is using name '{1}' from external module {2} but cannot be named."),
+        Public_method_0_of_exported_class_has_or_is_using_name_1_from_private_module_2: diag(4099, ts.DiagnosticCategory.Error, "Public_method_0_of_exported_class_has_or_is_using_name_1_from_private_module_2_4099", "Public method '{0}' of exported class has or is using name '{1}' from private module '{2}'."),
+        Public_method_0_of_exported_class_has_or_is_using_private_name_1: diag(4100, ts.DiagnosticCategory.Error, "Public_method_0_of_exported_class_has_or_is_using_private_name_1_4100", "Public method '{0}' of exported class has or is using private name '{1}'."),
+        Method_0_of_exported_interface_has_or_is_using_name_1_from_private_module_2: diag(4101, ts.DiagnosticCategory.Error, "Method_0_of_exported_interface_has_or_is_using_name_1_from_private_module_2_4101", "Method '{0}' of exported interface has or is using name '{1}' from private module '{2}'."),
+        Method_0_of_exported_interface_has_or_is_using_private_name_1: diag(4102, ts.DiagnosticCategory.Error, "Method_0_of_exported_interface_has_or_is_using_private_name_1_4102", "Method '{0}' of exported interface has or is using private name '{1}'."),
+        Type_parameter_0_of_exported_mapped_object_type_is_using_private_name_1: diag(4103, ts.DiagnosticCategory.Error, "Type_parameter_0_of_exported_mapped_object_type_is_using_private_name_1_4103", "Type parameter '{0}' of exported mapped object type is using private name '{1}'."),
+        The_type_0_is_readonly_and_cannot_be_assigned_to_the_mutable_type_1: diag(4104, ts.DiagnosticCategory.Error, "The_type_0_is_readonly_and_cannot_be_assigned_to_the_mutable_type_1_4104", "The type '{0}' is 'readonly' and cannot be assigned to the mutable type '{1}'."),
+        Private_or_protected_member_0_cannot_be_accessed_on_a_type_parameter: diag(4105, ts.DiagnosticCategory.Error, "Private_or_protected_member_0_cannot_be_accessed_on_a_type_parameter_4105", "Private or protected member '{0}' cannot be accessed on a type parameter."),
+        Parameter_0_of_accessor_has_or_is_using_private_name_1: diag(4106, ts.DiagnosticCategory.Error, "Parameter_0_of_accessor_has_or_is_using_private_name_1_4106", "Parameter '{0}' of accessor has or is using private name '{1}'."),
+        Parameter_0_of_accessor_has_or_is_using_name_1_from_private_module_2: diag(4107, ts.DiagnosticCategory.Error, "Parameter_0_of_accessor_has_or_is_using_name_1_from_private_module_2_4107", "Parameter '{0}' of accessor has or is using name '{1}' from private module '{2}'."),
+        Parameter_0_of_accessor_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: diag(4108, ts.DiagnosticCategory.Error, "Parameter_0_of_accessor_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named_4108", "Parameter '{0}' of accessor has or is using name '{1}' from external module '{2}' but cannot be named."),
+        Type_arguments_for_0_circularly_reference_themselves: diag(4109, ts.DiagnosticCategory.Error, "Type_arguments_for_0_circularly_reference_themselves_4109", "Type arguments for '{0}' circularly reference themselves."),
+        Tuple_type_arguments_circularly_reference_themselves: diag(4110, ts.DiagnosticCategory.Error, "Tuple_type_arguments_circularly_reference_themselves_4110", "Tuple type arguments circularly reference themselves."),
+        The_current_host_does_not_support_the_0_option: diag(5001, ts.DiagnosticCategory.Error, "The_current_host_does_not_support_the_0_option_5001", "The current host does not support the '{0}' option."),
+        Cannot_find_the_common_subdirectory_path_for_the_input_files: diag(5009, ts.DiagnosticCategory.Error, "Cannot_find_the_common_subdirectory_path_for_the_input_files_5009", "Cannot find the common subdirectory path for the input files."),
+        File_specification_cannot_end_in_a_recursive_directory_wildcard_Asterisk_Asterisk_Colon_0: diag(5010, ts.DiagnosticCategory.Error, "File_specification_cannot_end_in_a_recursive_directory_wildcard_Asterisk_Asterisk_Colon_0_5010", "File specification cannot end in a recursive directory wildcard ('**'): '{0}'."),
+        Cannot_read_file_0_Colon_1: diag(5012, ts.DiagnosticCategory.Error, "Cannot_read_file_0_Colon_1_5012", "Cannot read file '{0}': {1}."),
+        Failed_to_parse_file_0_Colon_1: diag(5014, ts.DiagnosticCategory.Error, "Failed_to_parse_file_0_Colon_1_5014", "Failed to parse file '{0}': {1}."),
+        Unknown_compiler_option_0: diag(5023, ts.DiagnosticCategory.Error, "Unknown_compiler_option_0_5023", "Unknown compiler option '{0}'."),
+        Compiler_option_0_requires_a_value_of_type_1: diag(5024, ts.DiagnosticCategory.Error, "Compiler_option_0_requires_a_value_of_type_1_5024", "Compiler option '{0}' requires a value of type {1}."),
+        Unknown_compiler_option_0_Did_you_mean_1: diag(5025, ts.DiagnosticCategory.Error, "Unknown_compiler_option_0_Did_you_mean_1_5025", "Unknown compiler option '{0}'. Did you mean '{1}'?"),
+        Could_not_write_file_0_Colon_1: diag(5033, ts.DiagnosticCategory.Error, "Could_not_write_file_0_Colon_1_5033", "Could not write file '{0}': {1}."),
+        Option_project_cannot_be_mixed_with_source_files_on_a_command_line: diag(5042, ts.DiagnosticCategory.Error, "Option_project_cannot_be_mixed_with_source_files_on_a_command_line_5042", "Option 'project' cannot be mixed with source files on a command line."),
+        Option_isolatedModules_can_only_be_used_when_either_option_module_is_provided_or_option_target_is_ES2015_or_higher: diag(5047, ts.DiagnosticCategory.Error, "Option_isolatedModules_can_only_be_used_when_either_option_module_is_provided_or_option_target_is_ES_5047", "Option 'isolatedModules' can only be used when either option '--module' is provided or option 'target' is 'ES2015' or higher."),
+        Option_0_cannot_be_specified_when_option_target_is_ES3: diag(5048, ts.DiagnosticCategory.Error, "Option_0_cannot_be_specified_when_option_target_is_ES3_5048", "Option '{0}' cannot be specified when option 'target' is 'ES3'."),
+        Option_0_can_only_be_used_when_either_option_inlineSourceMap_or_option_sourceMap_is_provided: diag(5051, ts.DiagnosticCategory.Error, "Option_0_can_only_be_used_when_either_option_inlineSourceMap_or_option_sourceMap_is_provided_5051", "Option '{0} can only be used when either option '--inlineSourceMap' or option '--sourceMap' is provided."),
+        Option_0_cannot_be_specified_without_specifying_option_1: diag(5052, ts.DiagnosticCategory.Error, "Option_0_cannot_be_specified_without_specifying_option_1_5052", "Option '{0}' cannot be specified without specifying option '{1}'."),
+        Option_0_cannot_be_specified_with_option_1: diag(5053, ts.DiagnosticCategory.Error, "Option_0_cannot_be_specified_with_option_1_5053", "Option '{0}' cannot be specified with option '{1}'."),
+        A_tsconfig_json_file_is_already_defined_at_Colon_0: diag(5054, ts.DiagnosticCategory.Error, "A_tsconfig_json_file_is_already_defined_at_Colon_0_5054", "A 'tsconfig.json' file is already defined at: '{0}'."),
+        Cannot_write_file_0_because_it_would_overwrite_input_file: diag(5055, ts.DiagnosticCategory.Error, "Cannot_write_file_0_because_it_would_overwrite_input_file_5055", "Cannot write file '{0}' because it would overwrite input file."),
+        Cannot_write_file_0_because_it_would_be_overwritten_by_multiple_input_files: diag(5056, ts.DiagnosticCategory.Error, "Cannot_write_file_0_because_it_would_be_overwritten_by_multiple_input_files_5056", "Cannot write file '{0}' because it would be overwritten by multiple input files."),
+        Cannot_find_a_tsconfig_json_file_at_the_specified_directory_Colon_0: diag(5057, ts.DiagnosticCategory.Error, "Cannot_find_a_tsconfig_json_file_at_the_specified_directory_Colon_0_5057", "Cannot find a tsconfig.json file at the specified directory: '{0}'."),
+        The_specified_path_does_not_exist_Colon_0: diag(5058, ts.DiagnosticCategory.Error, "The_specified_path_does_not_exist_Colon_0_5058", "The specified path does not exist: '{0}'."),
+        Invalid_value_for_reactNamespace_0_is_not_a_valid_identifier: diag(5059, ts.DiagnosticCategory.Error, "Invalid_value_for_reactNamespace_0_is_not_a_valid_identifier_5059", "Invalid value for '--reactNamespace'. '{0}' is not a valid identifier."),
+        Option_paths_cannot_be_used_without_specifying_baseUrl_option: diag(5060, ts.DiagnosticCategory.Error, "Option_paths_cannot_be_used_without_specifying_baseUrl_option_5060", "Option 'paths' cannot be used without specifying '--baseUrl' option."),
+        Pattern_0_can_have_at_most_one_Asterisk_character: diag(5061, ts.DiagnosticCategory.Error, "Pattern_0_can_have_at_most_one_Asterisk_character_5061", "Pattern '{0}' can have at most one '*' character."),
+        Substitution_0_in_pattern_1_can_have_at_most_one_Asterisk_character: diag(5062, ts.DiagnosticCategory.Error, "Substitution_0_in_pattern_1_can_have_at_most_one_Asterisk_character_5062", "Substitution '{0}' in pattern '{1}' can have at most one '*' character."),
+        Substitutions_for_pattern_0_should_be_an_array: diag(5063, ts.DiagnosticCategory.Error, "Substitutions_for_pattern_0_should_be_an_array_5063", "Substitutions for pattern '{0}' should be an array."),
+        Substitution_0_for_pattern_1_has_incorrect_type_expected_string_got_2: diag(5064, ts.DiagnosticCategory.Error, "Substitution_0_for_pattern_1_has_incorrect_type_expected_string_got_2_5064", "Substitution '{0}' for pattern '{1}' has incorrect type, expected 'string', got '{2}'."),
+        File_specification_cannot_contain_a_parent_directory_that_appears_after_a_recursive_directory_wildcard_Asterisk_Asterisk_Colon_0: diag(5065, ts.DiagnosticCategory.Error, "File_specification_cannot_contain_a_parent_directory_that_appears_after_a_recursive_directory_wildca_5065", "File specification cannot contain a parent directory ('..') that appears after a recursive directory wildcard ('**'): '{0}'."),
+        Substitutions_for_pattern_0_shouldn_t_be_an_empty_array: diag(5066, ts.DiagnosticCategory.Error, "Substitutions_for_pattern_0_shouldn_t_be_an_empty_array_5066", "Substitutions for pattern '{0}' shouldn't be an empty array."),
+        Invalid_value_for_jsxFactory_0_is_not_a_valid_identifier_or_qualified_name: diag(5067, ts.DiagnosticCategory.Error, "Invalid_value_for_jsxFactory_0_is_not_a_valid_identifier_or_qualified_name_5067", "Invalid value for 'jsxFactory'. '{0}' is not a valid identifier or qualified-name."),
+        Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript_files_Learn_more_at_https_Colon_Slash_Slashaka_ms_Slashtsconfig: diag(5068, ts.DiagnosticCategory.Error, "Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript__5068", "Adding a tsconfig.json file will help organize projects that contain both TypeScript and JavaScript files. Learn more at https://aka.ms/tsconfig."),
+        Option_0_cannot_be_specified_without_specifying_option_1_or_option_2: diag(5069, ts.DiagnosticCategory.Error, "Option_0_cannot_be_specified_without_specifying_option_1_or_option_2_5069", "Option '{0}' cannot be specified without specifying option '{1}' or option '{2}'."),
+        Option_resolveJsonModule_cannot_be_specified_without_node_module_resolution_strategy: diag(5070, ts.DiagnosticCategory.Error, "Option_resolveJsonModule_cannot_be_specified_without_node_module_resolution_strategy_5070", "Option '--resolveJsonModule' cannot be specified without 'node' module resolution strategy."),
+        Option_resolveJsonModule_can_only_be_specified_when_module_code_generation_is_commonjs_amd_es2015_or_esNext: diag(5071, ts.DiagnosticCategory.Error, "Option_resolveJsonModule_can_only_be_specified_when_module_code_generation_is_commonjs_amd_es2015_or_5071", "Option '--resolveJsonModule' can only be specified when module code generation is 'commonjs', 'amd', 'es2015' or 'esNext'."),
+        Unknown_build_option_0: diag(5072, ts.DiagnosticCategory.Error, "Unknown_build_option_0_5072", "Unknown build option '{0}'."),
+        Build_option_0_requires_a_value_of_type_1: diag(5073, ts.DiagnosticCategory.Error, "Build_option_0_requires_a_value_of_type_1_5073", "Build option '{0}' requires a value of type {1}."),
+        Option_incremental_can_only_be_specified_using_tsconfig_emitting_to_single_file_or_when_option_tsBuildInfoFile_is_specified: diag(5074, ts.DiagnosticCategory.Error, "Option_incremental_can_only_be_specified_using_tsconfig_emitting_to_single_file_or_when_option_tsBui_5074", "Option '--incremental' can only be specified using tsconfig, emitting to single file or when option `--tsBuildInfoFile` is specified."),
+        _0_is_assignable_to_the_constraint_of_type_1_but_1_could_be_instantiated_with_a_different_subtype_of_constraint_2: diag(5075, ts.DiagnosticCategory.Error, "_0_is_assignable_to_the_constraint_of_type_1_but_1_could_be_instantiated_with_a_different_subtype_of_5075", "'{0}' is assignable to the constraint of type '{1}', but '{1}' could be instantiated with a different subtype of constraint '{2}'."),
+        _0_and_1_operations_cannot_be_mixed_without_parentheses: diag(5076, ts.DiagnosticCategory.Error, "_0_and_1_operations_cannot_be_mixed_without_parentheses_5076", "'{0}' and '{1}' operations cannot be mixed without parentheses."),
+        Unknown_build_option_0_Did_you_mean_1: diag(5077, ts.DiagnosticCategory.Error, "Unknown_build_option_0_Did_you_mean_1_5077", "Unknown build option '{0}'. Did you mean '{1}'?"),
+        Unknown_watch_option_0: diag(5078, ts.DiagnosticCategory.Error, "Unknown_watch_option_0_5078", "Unknown watch option '{0}'."),
+        Unknown_watch_option_0_Did_you_mean_1: diag(5079, ts.DiagnosticCategory.Error, "Unknown_watch_option_0_Did_you_mean_1_5079", "Unknown watch option '{0}'. Did you mean '{1}'?"),
+        Watch_option_0_requires_a_value_of_type_1: diag(5080, ts.DiagnosticCategory.Error, "Watch_option_0_requires_a_value_of_type_1_5080", "Watch option '{0}' requires a value of type {1}."),
+        Cannot_find_a_tsconfig_json_file_at_the_current_directory_Colon_0: diag(5081, ts.DiagnosticCategory.Error, "Cannot_find_a_tsconfig_json_file_at_the_current_directory_Colon_0_5081", "Cannot find a tsconfig.json file at the current directory: {0}."),
+        _0_could_be_instantiated_with_an_arbitrary_type_which_could_be_unrelated_to_1: diag(5082, ts.DiagnosticCategory.Error, "_0_could_be_instantiated_with_an_arbitrary_type_which_could_be_unrelated_to_1_5082", "'{0}' could be instantiated with an arbitrary type which could be unrelated to '{1}'."),
+        Cannot_read_file_0: diag(5083, ts.DiagnosticCategory.Error, "Cannot_read_file_0_5083", "Cannot read file '{0}'."),
+        Generates_a_sourcemap_for_each_corresponding_d_ts_file: diag(6000, ts.DiagnosticCategory.Message, "Generates_a_sourcemap_for_each_corresponding_d_ts_file_6000", "Generates a sourcemap for each corresponding '.d.ts' file."),
+        Concatenate_and_emit_output_to_single_file: diag(6001, ts.DiagnosticCategory.Message, "Concatenate_and_emit_output_to_single_file_6001", "Concatenate and emit output to single file."),
+        Generates_corresponding_d_ts_file: diag(6002, ts.DiagnosticCategory.Message, "Generates_corresponding_d_ts_file_6002", "Generates corresponding '.d.ts' file."),
+        Specify_the_location_where_debugger_should_locate_map_files_instead_of_generated_locations: diag(6003, ts.DiagnosticCategory.Message, "Specify_the_location_where_debugger_should_locate_map_files_instead_of_generated_locations_6003", "Specify the location where debugger should locate map files instead of generated locations."),
+        Specify_the_location_where_debugger_should_locate_TypeScript_files_instead_of_source_locations: diag(6004, ts.DiagnosticCategory.Message, "Specify_the_location_where_debugger_should_locate_TypeScript_files_instead_of_source_locations_6004", "Specify the location where debugger should locate TypeScript files instead of source locations."),
+        Watch_input_files: diag(6005, ts.DiagnosticCategory.Message, "Watch_input_files_6005", "Watch input files."),
+        Redirect_output_structure_to_the_directory: diag(6006, ts.DiagnosticCategory.Message, "Redirect_output_structure_to_the_directory_6006", "Redirect output structure to the directory."),
+        Do_not_erase_const_enum_declarations_in_generated_code: diag(6007, ts.DiagnosticCategory.Message, "Do_not_erase_const_enum_declarations_in_generated_code_6007", "Do not erase const enum declarations in generated code."),
+        Do_not_emit_outputs_if_any_errors_were_reported: diag(6008, ts.DiagnosticCategory.Message, "Do_not_emit_outputs_if_any_errors_were_reported_6008", "Do not emit outputs if any errors were reported."),
+        Do_not_emit_comments_to_output: diag(6009, ts.DiagnosticCategory.Message, "Do_not_emit_comments_to_output_6009", "Do not emit comments to output."),
+        Do_not_emit_outputs: diag(6010, ts.DiagnosticCategory.Message, "Do_not_emit_outputs_6010", "Do not emit outputs."),
+        Allow_default_imports_from_modules_with_no_default_export_This_does_not_affect_code_emit_just_typechecking: diag(6011, ts.DiagnosticCategory.Message, "Allow_default_imports_from_modules_with_no_default_export_This_does_not_affect_code_emit_just_typech_6011", "Allow default imports from modules with no default export. This does not affect code emit, just typechecking."),
+        Skip_type_checking_of_declaration_files: diag(6012, ts.DiagnosticCategory.Message, "Skip_type_checking_of_declaration_files_6012", "Skip type checking of declaration files."),
+        Do_not_resolve_the_real_path_of_symlinks: diag(6013, ts.DiagnosticCategory.Message, "Do_not_resolve_the_real_path_of_symlinks_6013", "Do not resolve the real path of symlinks."),
+        Only_emit_d_ts_declaration_files: diag(6014, ts.DiagnosticCategory.Message, "Only_emit_d_ts_declaration_files_6014", "Only emit '.d.ts' declaration files."),
+        Specify_ECMAScript_target_version_Colon_ES3_default_ES5_ES2015_ES2016_ES2017_ES2018_ES2019_ES2020_or_ESNEXT: diag(6015, ts.DiagnosticCategory.Message, "Specify_ECMAScript_target_version_Colon_ES3_default_ES5_ES2015_ES2016_ES2017_ES2018_ES2019_ES2020_or_6015", "Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'."),
+        Specify_module_code_generation_Colon_none_commonjs_amd_system_umd_es2015_es2020_or_ESNext: diag(6016, ts.DiagnosticCategory.Message, "Specify_module_code_generation_Colon_none_commonjs_amd_system_umd_es2015_es2020_or_ESNext_6016", "Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'."),
+        Print_this_message: diag(6017, ts.DiagnosticCategory.Message, "Print_this_message_6017", "Print this message."),
+        Print_the_compiler_s_version: diag(6019, ts.DiagnosticCategory.Message, "Print_the_compiler_s_version_6019", "Print the compiler's version."),
+        Compile_the_project_given_the_path_to_its_configuration_file_or_to_a_folder_with_a_tsconfig_json: diag(6020, ts.DiagnosticCategory.Message, "Compile_the_project_given_the_path_to_its_configuration_file_or_to_a_folder_with_a_tsconfig_json_6020", "Compile the project given the path to its configuration file, or to a folder with a 'tsconfig.json'."),
+        Syntax_Colon_0: diag(6023, ts.DiagnosticCategory.Message, "Syntax_Colon_0_6023", "Syntax: {0}"),
+        options: diag(6024, ts.DiagnosticCategory.Message, "options_6024", "options"),
+        file: diag(6025, ts.DiagnosticCategory.Message, "file_6025", "file"),
+        Examples_Colon_0: diag(6026, ts.DiagnosticCategory.Message, "Examples_Colon_0_6026", "Examples: {0}"),
+        Options_Colon: diag(6027, ts.DiagnosticCategory.Message, "Options_Colon_6027", "Options:"),
+        Version_0: diag(6029, ts.DiagnosticCategory.Message, "Version_0_6029", "Version {0}"),
+        Insert_command_line_options_and_files_from_a_file: diag(6030, ts.DiagnosticCategory.Message, "Insert_command_line_options_and_files_from_a_file_6030", "Insert command line options and files from a file."),
+        Starting_compilation_in_watch_mode: diag(6031, ts.DiagnosticCategory.Message, "Starting_compilation_in_watch_mode_6031", "Starting compilation in watch mode..."),
+        File_change_detected_Starting_incremental_compilation: diag(6032, ts.DiagnosticCategory.Message, "File_change_detected_Starting_incremental_compilation_6032", "File change detected. Starting incremental compilation..."),
+        KIND: diag(6034, ts.DiagnosticCategory.Message, "KIND_6034", "KIND"),
+        FILE: diag(6035, ts.DiagnosticCategory.Message, "FILE_6035", "FILE"),
+        VERSION: diag(6036, ts.DiagnosticCategory.Message, "VERSION_6036", "VERSION"),
+        LOCATION: diag(6037, ts.DiagnosticCategory.Message, "LOCATION_6037", "LOCATION"),
+        DIRECTORY: diag(6038, ts.DiagnosticCategory.Message, "DIRECTORY_6038", "DIRECTORY"),
+        STRATEGY: diag(6039, ts.DiagnosticCategory.Message, "STRATEGY_6039", "STRATEGY"),
+        FILE_OR_DIRECTORY: diag(6040, ts.DiagnosticCategory.Message, "FILE_OR_DIRECTORY_6040", "FILE OR DIRECTORY"),
+        Generates_corresponding_map_file: diag(6043, ts.DiagnosticCategory.Message, "Generates_corresponding_map_file_6043", "Generates corresponding '.map' file."),
+        Compiler_option_0_expects_an_argument: diag(6044, ts.DiagnosticCategory.Error, "Compiler_option_0_expects_an_argument_6044", "Compiler option '{0}' expects an argument."),
+        Unterminated_quoted_string_in_response_file_0: diag(6045, ts.DiagnosticCategory.Error, "Unterminated_quoted_string_in_response_file_0_6045", "Unterminated quoted string in response file '{0}'."),
+        Argument_for_0_option_must_be_Colon_1: diag(6046, ts.DiagnosticCategory.Error, "Argument_for_0_option_must_be_Colon_1_6046", "Argument for '{0}' option must be: {1}."),
+        Locale_must_be_of_the_form_language_or_language_territory_For_example_0_or_1: diag(6048, ts.DiagnosticCategory.Error, "Locale_must_be_of_the_form_language_or_language_territory_For_example_0_or_1_6048", "Locale must be of the form <language> or <language>-<territory>. For example '{0}' or '{1}'."),
+        Unsupported_locale_0: diag(6049, ts.DiagnosticCategory.Error, "Unsupported_locale_0_6049", "Unsupported locale '{0}'."),
+        Unable_to_open_file_0: diag(6050, ts.DiagnosticCategory.Error, "Unable_to_open_file_0_6050", "Unable to open file '{0}'."),
+        Corrupted_locale_file_0: diag(6051, ts.DiagnosticCategory.Error, "Corrupted_locale_file_0_6051", "Corrupted locale file {0}."),
+        Raise_error_on_expressions_and_declarations_with_an_implied_any_type: diag(6052, ts.DiagnosticCategory.Message, "Raise_error_on_expressions_and_declarations_with_an_implied_any_type_6052", "Raise error on expressions and declarations with an implied 'any' type."),
+        File_0_not_found: diag(6053, ts.DiagnosticCategory.Error, "File_0_not_found_6053", "File '{0}' not found."),
+        File_0_has_an_unsupported_extension_The_only_supported_extensions_are_1: diag(6054, ts.DiagnosticCategory.Error, "File_0_has_an_unsupported_extension_The_only_supported_extensions_are_1_6054", "File '{0}' has an unsupported extension. The only supported extensions are {1}."),
+        Suppress_noImplicitAny_errors_for_indexing_objects_lacking_index_signatures: diag(6055, ts.DiagnosticCategory.Message, "Suppress_noImplicitAny_errors_for_indexing_objects_lacking_index_signatures_6055", "Suppress noImplicitAny errors for indexing objects lacking index signatures."),
+        Do_not_emit_declarations_for_code_that_has_an_internal_annotation: diag(6056, ts.DiagnosticCategory.Message, "Do_not_emit_declarations_for_code_that_has_an_internal_annotation_6056", "Do not emit declarations for code that has an '@internal' annotation."),
+        Specify_the_root_directory_of_input_files_Use_to_control_the_output_directory_structure_with_outDir: diag(6058, ts.DiagnosticCategory.Message, "Specify_the_root_directory_of_input_files_Use_to_control_the_output_directory_structure_with_outDir_6058", "Specify the root directory of input files. Use to control the output directory structure with --outDir."),
+        File_0_is_not_under_rootDir_1_rootDir_is_expected_to_contain_all_source_files: diag(6059, ts.DiagnosticCategory.Error, "File_0_is_not_under_rootDir_1_rootDir_is_expected_to_contain_all_source_files_6059", "File '{0}' is not under 'rootDir' '{1}'. 'rootDir' is expected to contain all source files."),
+        Specify_the_end_of_line_sequence_to_be_used_when_emitting_files_Colon_CRLF_dos_or_LF_unix: diag(6060, ts.DiagnosticCategory.Message, "Specify_the_end_of_line_sequence_to_be_used_when_emitting_files_Colon_CRLF_dos_or_LF_unix_6060", "Specify the end of line sequence to be used when emitting files: 'CRLF' (dos) or 'LF' (unix)."),
+        NEWLINE: diag(6061, ts.DiagnosticCategory.Message, "NEWLINE_6061", "NEWLINE"),
+        Option_0_can_only_be_specified_in_tsconfig_json_file_or_set_to_null_on_command_line: diag(6064, ts.DiagnosticCategory.Error, "Option_0_can_only_be_specified_in_tsconfig_json_file_or_set_to_null_on_command_line_6064", "Option '{0}' can only be specified in 'tsconfig.json' file or set to 'null' on command line."),
+        Enables_experimental_support_for_ES7_decorators: diag(6065, ts.DiagnosticCategory.Message, "Enables_experimental_support_for_ES7_decorators_6065", "Enables experimental support for ES7 decorators."),
+        Enables_experimental_support_for_emitting_type_metadata_for_decorators: diag(6066, ts.DiagnosticCategory.Message, "Enables_experimental_support_for_emitting_type_metadata_for_decorators_6066", "Enables experimental support for emitting type metadata for decorators."),
+        Enables_experimental_support_for_ES7_async_functions: diag(6068, ts.DiagnosticCategory.Message, "Enables_experimental_support_for_ES7_async_functions_6068", "Enables experimental support for ES7 async functions."),
+        Specify_module_resolution_strategy_Colon_node_Node_js_or_classic_TypeScript_pre_1_6: diag(6069, ts.DiagnosticCategory.Message, "Specify_module_resolution_strategy_Colon_node_Node_js_or_classic_TypeScript_pre_1_6_6069", "Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6)."),
+        Initializes_a_TypeScript_project_and_creates_a_tsconfig_json_file: diag(6070, ts.DiagnosticCategory.Message, "Initializes_a_TypeScript_project_and_creates_a_tsconfig_json_file_6070", "Initializes a TypeScript project and creates a tsconfig.json file."),
+        Successfully_created_a_tsconfig_json_file: diag(6071, ts.DiagnosticCategory.Message, "Successfully_created_a_tsconfig_json_file_6071", "Successfully created a tsconfig.json file."),
+        Suppress_excess_property_checks_for_object_literals: diag(6072, ts.DiagnosticCategory.Message, "Suppress_excess_property_checks_for_object_literals_6072", "Suppress excess property checks for object literals."),
+        Stylize_errors_and_messages_using_color_and_context_experimental: diag(6073, ts.DiagnosticCategory.Message, "Stylize_errors_and_messages_using_color_and_context_experimental_6073", "Stylize errors and messages using color and context (experimental)."),
+        Do_not_report_errors_on_unused_labels: diag(6074, ts.DiagnosticCategory.Message, "Do_not_report_errors_on_unused_labels_6074", "Do not report errors on unused labels."),
+        Report_error_when_not_all_code_paths_in_function_return_a_value: diag(6075, ts.DiagnosticCategory.Message, "Report_error_when_not_all_code_paths_in_function_return_a_value_6075", "Report error when not all code paths in function return a value."),
+        Report_errors_for_fallthrough_cases_in_switch_statement: diag(6076, ts.DiagnosticCategory.Message, "Report_errors_for_fallthrough_cases_in_switch_statement_6076", "Report errors for fallthrough cases in switch statement."),
+        Do_not_report_errors_on_unreachable_code: diag(6077, ts.DiagnosticCategory.Message, "Do_not_report_errors_on_unreachable_code_6077", "Do not report errors on unreachable code."),
+        Disallow_inconsistently_cased_references_to_the_same_file: diag(6078, ts.DiagnosticCategory.Message, "Disallow_inconsistently_cased_references_to_the_same_file_6078", "Disallow inconsistently-cased references to the same file."),
+        Specify_library_files_to_be_included_in_the_compilation: diag(6079, ts.DiagnosticCategory.Message, "Specify_library_files_to_be_included_in_the_compilation_6079", "Specify library files to be included in the compilation."),
+        Specify_JSX_code_generation_Colon_preserve_react_native_or_react: diag(6080, ts.DiagnosticCategory.Message, "Specify_JSX_code_generation_Colon_preserve_react_native_or_react_6080", "Specify JSX code generation: 'preserve', 'react-native', or 'react'."),
+        File_0_has_an_unsupported_extension_so_skipping_it: diag(6081, ts.DiagnosticCategory.Message, "File_0_has_an_unsupported_extension_so_skipping_it_6081", "File '{0}' has an unsupported extension, so skipping it."),
+        Only_amd_and_system_modules_are_supported_alongside_0: diag(6082, ts.DiagnosticCategory.Error, "Only_amd_and_system_modules_are_supported_alongside_0_6082", "Only 'amd' and 'system' modules are supported alongside --{0}."),
+        Base_directory_to_resolve_non_absolute_module_names: diag(6083, ts.DiagnosticCategory.Message, "Base_directory_to_resolve_non_absolute_module_names_6083", "Base directory to resolve non-absolute module names."),
+        Deprecated_Use_jsxFactory_instead_Specify_the_object_invoked_for_createElement_when_targeting_react_JSX_emit: diag(6084, ts.DiagnosticCategory.Message, "Deprecated_Use_jsxFactory_instead_Specify_the_object_invoked_for_createElement_when_targeting_react__6084", "[Deprecated] Use '--jsxFactory' instead. Specify the object invoked for createElement when targeting 'react' JSX emit"),
+        Enable_tracing_of_the_name_resolution_process: diag(6085, ts.DiagnosticCategory.Message, "Enable_tracing_of_the_name_resolution_process_6085", "Enable tracing of the name resolution process."),
+        Resolving_module_0_from_1: diag(6086, ts.DiagnosticCategory.Message, "Resolving_module_0_from_1_6086", "======== Resolving module '{0}' from '{1}'. ========"),
+        Explicitly_specified_module_resolution_kind_Colon_0: diag(6087, ts.DiagnosticCategory.Message, "Explicitly_specified_module_resolution_kind_Colon_0_6087", "Explicitly specified module resolution kind: '{0}'."),
+        Module_resolution_kind_is_not_specified_using_0: diag(6088, ts.DiagnosticCategory.Message, "Module_resolution_kind_is_not_specified_using_0_6088", "Module resolution kind is not specified, using '{0}'."),
+        Module_name_0_was_successfully_resolved_to_1: diag(6089, ts.DiagnosticCategory.Message, "Module_name_0_was_successfully_resolved_to_1_6089", "======== Module name '{0}' was successfully resolved to '{1}'. ========"),
+        Module_name_0_was_not_resolved: diag(6090, ts.DiagnosticCategory.Message, "Module_name_0_was_not_resolved_6090", "======== Module name '{0}' was not resolved. ========"),
+        paths_option_is_specified_looking_for_a_pattern_to_match_module_name_0: diag(6091, ts.DiagnosticCategory.Message, "paths_option_is_specified_looking_for_a_pattern_to_match_module_name_0_6091", "'paths' option is specified, looking for a pattern to match module name '{0}'."),
+        Module_name_0_matched_pattern_1: diag(6092, ts.DiagnosticCategory.Message, "Module_name_0_matched_pattern_1_6092", "Module name '{0}', matched pattern '{1}'."),
+        Trying_substitution_0_candidate_module_location_Colon_1: diag(6093, ts.DiagnosticCategory.Message, "Trying_substitution_0_candidate_module_location_Colon_1_6093", "Trying substitution '{0}', candidate module location: '{1}'."),
+        Resolving_module_name_0_relative_to_base_url_1_2: diag(6094, ts.DiagnosticCategory.Message, "Resolving_module_name_0_relative_to_base_url_1_2_6094", "Resolving module name '{0}' relative to base url '{1}' - '{2}'."),
+        Loading_module_as_file_Slash_folder_candidate_module_location_0_target_file_type_1: diag(6095, ts.DiagnosticCategory.Message, "Loading_module_as_file_Slash_folder_candidate_module_location_0_target_file_type_1_6095", "Loading module as file / folder, candidate module location '{0}', target file type '{1}'."),
+        File_0_does_not_exist: diag(6096, ts.DiagnosticCategory.Message, "File_0_does_not_exist_6096", "File '{0}' does not exist."),
+        File_0_exist_use_it_as_a_name_resolution_result: diag(6097, ts.DiagnosticCategory.Message, "File_0_exist_use_it_as_a_name_resolution_result_6097", "File '{0}' exist - use it as a name resolution result."),
+        Loading_module_0_from_node_modules_folder_target_file_type_1: diag(6098, ts.DiagnosticCategory.Message, "Loading_module_0_from_node_modules_folder_target_file_type_1_6098", "Loading module '{0}' from 'node_modules' folder, target file type '{1}'."),
+        Found_package_json_at_0: diag(6099, ts.DiagnosticCategory.Message, "Found_package_json_at_0_6099", "Found 'package.json' at '{0}'."),
+        package_json_does_not_have_a_0_field: diag(6100, ts.DiagnosticCategory.Message, "package_json_does_not_have_a_0_field_6100", "'package.json' does not have a '{0}' field."),
+        package_json_has_0_field_1_that_references_2: diag(6101, ts.DiagnosticCategory.Message, "package_json_has_0_field_1_that_references_2_6101", "'package.json' has '{0}' field '{1}' that references '{2}'."),
+        Allow_javascript_files_to_be_compiled: diag(6102, ts.DiagnosticCategory.Message, "Allow_javascript_files_to_be_compiled_6102", "Allow javascript files to be compiled."),
+        Option_0_should_have_array_of_strings_as_a_value: diag(6103, ts.DiagnosticCategory.Error, "Option_0_should_have_array_of_strings_as_a_value_6103", "Option '{0}' should have array of strings as a value."),
+        Checking_if_0_is_the_longest_matching_prefix_for_1_2: diag(6104, ts.DiagnosticCategory.Message, "Checking_if_0_is_the_longest_matching_prefix_for_1_2_6104", "Checking if '{0}' is the longest matching prefix for '{1}' - '{2}'."),
+        Expected_type_of_0_field_in_package_json_to_be_1_got_2: diag(6105, ts.DiagnosticCategory.Message, "Expected_type_of_0_field_in_package_json_to_be_1_got_2_6105", "Expected type of '{0}' field in 'package.json' to be '{1}', got '{2}'."),
+        baseUrl_option_is_set_to_0_using_this_value_to_resolve_non_relative_module_name_1: diag(6106, ts.DiagnosticCategory.Message, "baseUrl_option_is_set_to_0_using_this_value_to_resolve_non_relative_module_name_1_6106", "'baseUrl' option is set to '{0}', using this value to resolve non-relative module name '{1}'."),
+        rootDirs_option_is_set_using_it_to_resolve_relative_module_name_0: diag(6107, ts.DiagnosticCategory.Message, "rootDirs_option_is_set_using_it_to_resolve_relative_module_name_0_6107", "'rootDirs' option is set, using it to resolve relative module name '{0}'."),
+        Longest_matching_prefix_for_0_is_1: diag(6108, ts.DiagnosticCategory.Message, "Longest_matching_prefix_for_0_is_1_6108", "Longest matching prefix for '{0}' is '{1}'."),
+        Loading_0_from_the_root_dir_1_candidate_location_2: diag(6109, ts.DiagnosticCategory.Message, "Loading_0_from_the_root_dir_1_candidate_location_2_6109", "Loading '{0}' from the root dir '{1}', candidate location '{2}'."),
+        Trying_other_entries_in_rootDirs: diag(6110, ts.DiagnosticCategory.Message, "Trying_other_entries_in_rootDirs_6110", "Trying other entries in 'rootDirs'."),
+        Module_resolution_using_rootDirs_has_failed: diag(6111, ts.DiagnosticCategory.Message, "Module_resolution_using_rootDirs_has_failed_6111", "Module resolution using 'rootDirs' has failed."),
+        Do_not_emit_use_strict_directives_in_module_output: diag(6112, ts.DiagnosticCategory.Message, "Do_not_emit_use_strict_directives_in_module_output_6112", "Do not emit 'use strict' directives in module output."),
+        Enable_strict_null_checks: diag(6113, ts.DiagnosticCategory.Message, "Enable_strict_null_checks_6113", "Enable strict null checks."),
+        Unknown_option_excludes_Did_you_mean_exclude: diag(6114, ts.DiagnosticCategory.Error, "Unknown_option_excludes_Did_you_mean_exclude_6114", "Unknown option 'excludes'. Did you mean 'exclude'?"),
+        Raise_error_on_this_expressions_with_an_implied_any_type: diag(6115, ts.DiagnosticCategory.Message, "Raise_error_on_this_expressions_with_an_implied_any_type_6115", "Raise error on 'this' expressions with an implied 'any' type."),
+        Resolving_type_reference_directive_0_containing_file_1_root_directory_2: diag(6116, ts.DiagnosticCategory.Message, "Resolving_type_reference_directive_0_containing_file_1_root_directory_2_6116", "======== Resolving type reference directive '{0}', containing file '{1}', root directory '{2}'. ========"),
+        Resolving_using_primary_search_paths: diag(6117, ts.DiagnosticCategory.Message, "Resolving_using_primary_search_paths_6117", "Resolving using primary search paths..."),
+        Resolving_from_node_modules_folder: diag(6118, ts.DiagnosticCategory.Message, "Resolving_from_node_modules_folder_6118", "Resolving from node_modules folder..."),
+        Type_reference_directive_0_was_successfully_resolved_to_1_primary_Colon_2: diag(6119, ts.DiagnosticCategory.Message, "Type_reference_directive_0_was_successfully_resolved_to_1_primary_Colon_2_6119", "======== Type reference directive '{0}' was successfully resolved to '{1}', primary: {2}. ========"),
+        Type_reference_directive_0_was_not_resolved: diag(6120, ts.DiagnosticCategory.Message, "Type_reference_directive_0_was_not_resolved_6120", "======== Type reference directive '{0}' was not resolved. ========"),
+        Resolving_with_primary_search_path_0: diag(6121, ts.DiagnosticCategory.Message, "Resolving_with_primary_search_path_0_6121", "Resolving with primary search path '{0}'."),
+        Root_directory_cannot_be_determined_skipping_primary_search_paths: diag(6122, ts.DiagnosticCategory.Message, "Root_directory_cannot_be_determined_skipping_primary_search_paths_6122", "Root directory cannot be determined, skipping primary search paths."),
+        Resolving_type_reference_directive_0_containing_file_1_root_directory_not_set: diag(6123, ts.DiagnosticCategory.Message, "Resolving_type_reference_directive_0_containing_file_1_root_directory_not_set_6123", "======== Resolving type reference directive '{0}', containing file '{1}', root directory not set. ========"),
+        Type_declaration_files_to_be_included_in_compilation: diag(6124, ts.DiagnosticCategory.Message, "Type_declaration_files_to_be_included_in_compilation_6124", "Type declaration files to be included in compilation."),
+        Looking_up_in_node_modules_folder_initial_location_0: diag(6125, ts.DiagnosticCategory.Message, "Looking_up_in_node_modules_folder_initial_location_0_6125", "Looking up in 'node_modules' folder, initial location '{0}'."),
+        Containing_file_is_not_specified_and_root_directory_cannot_be_determined_skipping_lookup_in_node_modules_folder: diag(6126, ts.DiagnosticCategory.Message, "Containing_file_is_not_specified_and_root_directory_cannot_be_determined_skipping_lookup_in_node_mod_6126", "Containing file is not specified and root directory cannot be determined, skipping lookup in 'node_modules' folder."),
+        Resolving_type_reference_directive_0_containing_file_not_set_root_directory_1: diag(6127, ts.DiagnosticCategory.Message, "Resolving_type_reference_directive_0_containing_file_not_set_root_directory_1_6127", "======== Resolving type reference directive '{0}', containing file not set, root directory '{1}'. ========"),
+        Resolving_type_reference_directive_0_containing_file_not_set_root_directory_not_set: diag(6128, ts.DiagnosticCategory.Message, "Resolving_type_reference_directive_0_containing_file_not_set_root_directory_not_set_6128", "======== Resolving type reference directive '{0}', containing file not set, root directory not set. ========"),
+        Resolving_real_path_for_0_result_1: diag(6130, ts.DiagnosticCategory.Message, "Resolving_real_path_for_0_result_1_6130", "Resolving real path for '{0}', result '{1}'."),
+        Cannot_compile_modules_using_option_0_unless_the_module_flag_is_amd_or_system: diag(6131, ts.DiagnosticCategory.Error, "Cannot_compile_modules_using_option_0_unless_the_module_flag_is_amd_or_system_6131", "Cannot compile modules using option '{0}' unless the '--module' flag is 'amd' or 'system'."),
+        File_name_0_has_a_1_extension_stripping_it: diag(6132, ts.DiagnosticCategory.Message, "File_name_0_has_a_1_extension_stripping_it_6132", "File name '{0}' has a '{1}' extension - stripping it."),
+        _0_is_declared_but_its_value_is_never_read: diag(6133, ts.DiagnosticCategory.Error, "_0_is_declared_but_its_value_is_never_read_6133", "'{0}' is declared but its value is never read.", true),
+        Report_errors_on_unused_locals: diag(6134, ts.DiagnosticCategory.Message, "Report_errors_on_unused_locals_6134", "Report errors on unused locals."),
+        Report_errors_on_unused_parameters: diag(6135, ts.DiagnosticCategory.Message, "Report_errors_on_unused_parameters_6135", "Report errors on unused parameters."),
+        The_maximum_dependency_depth_to_search_under_node_modules_and_load_JavaScript_files: diag(6136, ts.DiagnosticCategory.Message, "The_maximum_dependency_depth_to_search_under_node_modules_and_load_JavaScript_files_6136", "The maximum dependency depth to search under node_modules and load JavaScript files."),
+        Cannot_import_type_declaration_files_Consider_importing_0_instead_of_1: diag(6137, ts.DiagnosticCategory.Error, "Cannot_import_type_declaration_files_Consider_importing_0_instead_of_1_6137", "Cannot import type declaration files. Consider importing '{0}' instead of '{1}'."),
+        Property_0_is_declared_but_its_value_is_never_read: diag(6138, ts.DiagnosticCategory.Error, "Property_0_is_declared_but_its_value_is_never_read_6138", "Property '{0}' is declared but its value is never read.", true),
+        Import_emit_helpers_from_tslib: diag(6139, ts.DiagnosticCategory.Message, "Import_emit_helpers_from_tslib_6139", "Import emit helpers from 'tslib'."),
+        Auto_discovery_for_typings_is_enabled_in_project_0_Running_extra_resolution_pass_for_module_1_using_cache_location_2: diag(6140, ts.DiagnosticCategory.Error, "Auto_discovery_for_typings_is_enabled_in_project_0_Running_extra_resolution_pass_for_module_1_using__6140", "Auto discovery for typings is enabled in project '{0}'. Running extra resolution pass for module '{1}' using cache location '{2}'."),
+        Parse_in_strict_mode_and_emit_use_strict_for_each_source_file: diag(6141, ts.DiagnosticCategory.Message, "Parse_in_strict_mode_and_emit_use_strict_for_each_source_file_6141", "Parse in strict mode and emit \"use strict\" for each source file."),
+        Module_0_was_resolved_to_1_but_jsx_is_not_set: diag(6142, ts.DiagnosticCategory.Error, "Module_0_was_resolved_to_1_but_jsx_is_not_set_6142", "Module '{0}' was resolved to '{1}', but '--jsx' is not set."),
+        Module_0_was_resolved_as_locally_declared_ambient_module_in_file_1: diag(6144, ts.DiagnosticCategory.Message, "Module_0_was_resolved_as_locally_declared_ambient_module_in_file_1_6144", "Module '{0}' was resolved as locally declared ambient module in file '{1}'."),
+        Module_0_was_resolved_as_ambient_module_declared_in_1_since_this_file_was_not_modified: diag(6145, ts.DiagnosticCategory.Message, "Module_0_was_resolved_as_ambient_module_declared_in_1_since_this_file_was_not_modified_6145", "Module '{0}' was resolved as ambient module declared in '{1}' since this file was not modified."),
+        Specify_the_JSX_factory_function_to_use_when_targeting_react_JSX_emit_e_g_React_createElement_or_h: diag(6146, ts.DiagnosticCategory.Message, "Specify_the_JSX_factory_function_to_use_when_targeting_react_JSX_emit_e_g_React_createElement_or_h_6146", "Specify the JSX factory function to use when targeting 'react' JSX emit, e.g. 'React.createElement' or 'h'."),
+        Resolution_for_module_0_was_found_in_cache_from_location_1: diag(6147, ts.DiagnosticCategory.Message, "Resolution_for_module_0_was_found_in_cache_from_location_1_6147", "Resolution for module '{0}' was found in cache from location '{1}'."),
+        Directory_0_does_not_exist_skipping_all_lookups_in_it: diag(6148, ts.DiagnosticCategory.Message, "Directory_0_does_not_exist_skipping_all_lookups_in_it_6148", "Directory '{0}' does not exist, skipping all lookups in it."),
+        Show_diagnostic_information: diag(6149, ts.DiagnosticCategory.Message, "Show_diagnostic_information_6149", "Show diagnostic information."),
+        Show_verbose_diagnostic_information: diag(6150, ts.DiagnosticCategory.Message, "Show_verbose_diagnostic_information_6150", "Show verbose diagnostic information."),
+        Emit_a_single_file_with_source_maps_instead_of_having_a_separate_file: diag(6151, ts.DiagnosticCategory.Message, "Emit_a_single_file_with_source_maps_instead_of_having_a_separate_file_6151", "Emit a single file with source maps instead of having a separate file."),
+        Emit_the_source_alongside_the_sourcemaps_within_a_single_file_requires_inlineSourceMap_or_sourceMap_to_be_set: diag(6152, ts.DiagnosticCategory.Message, "Emit_the_source_alongside_the_sourcemaps_within_a_single_file_requires_inlineSourceMap_or_sourceMap__6152", "Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set."),
+        Transpile_each_file_as_a_separate_module_similar_to_ts_transpileModule: diag(6153, ts.DiagnosticCategory.Message, "Transpile_each_file_as_a_separate_module_similar_to_ts_transpileModule_6153", "Transpile each file as a separate module (similar to 'ts.transpileModule')."),
+        Print_names_of_generated_files_part_of_the_compilation: diag(6154, ts.DiagnosticCategory.Message, "Print_names_of_generated_files_part_of_the_compilation_6154", "Print names of generated files part of the compilation."),
+        Print_names_of_files_part_of_the_compilation: diag(6155, ts.DiagnosticCategory.Message, "Print_names_of_files_part_of_the_compilation_6155", "Print names of files part of the compilation."),
+        The_locale_used_when_displaying_messages_to_the_user_e_g_en_us: diag(6156, ts.DiagnosticCategory.Message, "The_locale_used_when_displaying_messages_to_the_user_e_g_en_us_6156", "The locale used when displaying messages to the user (e.g. 'en-us')"),
+        Do_not_generate_custom_helper_functions_like_extends_in_compiled_output: diag(6157, ts.DiagnosticCategory.Message, "Do_not_generate_custom_helper_functions_like_extends_in_compiled_output_6157", "Do not generate custom helper functions like '__extends' in compiled output."),
+        Do_not_include_the_default_library_file_lib_d_ts: diag(6158, ts.DiagnosticCategory.Message, "Do_not_include_the_default_library_file_lib_d_ts_6158", "Do not include the default library file (lib.d.ts)."),
+        Do_not_add_triple_slash_references_or_imported_modules_to_the_list_of_compiled_files: diag(6159, ts.DiagnosticCategory.Message, "Do_not_add_triple_slash_references_or_imported_modules_to_the_list_of_compiled_files_6159", "Do not add triple-slash references or imported modules to the list of compiled files."),
+        Deprecated_Use_skipLibCheck_instead_Skip_type_checking_of_default_library_declaration_files: diag(6160, ts.DiagnosticCategory.Message, "Deprecated_Use_skipLibCheck_instead_Skip_type_checking_of_default_library_declaration_files_6160", "[Deprecated] Use '--skipLibCheck' instead. Skip type checking of default library declaration files."),
+        List_of_folders_to_include_type_definitions_from: diag(6161, ts.DiagnosticCategory.Message, "List_of_folders_to_include_type_definitions_from_6161", "List of folders to include type definitions from."),
+        Disable_size_limitations_on_JavaScript_projects: diag(6162, ts.DiagnosticCategory.Message, "Disable_size_limitations_on_JavaScript_projects_6162", "Disable size limitations on JavaScript projects."),
+        The_character_set_of_the_input_files: diag(6163, ts.DiagnosticCategory.Message, "The_character_set_of_the_input_files_6163", "The character set of the input files."),
+        Emit_a_UTF_8_Byte_Order_Mark_BOM_in_the_beginning_of_output_files: diag(6164, ts.DiagnosticCategory.Message, "Emit_a_UTF_8_Byte_Order_Mark_BOM_in_the_beginning_of_output_files_6164", "Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files."),
+        Do_not_truncate_error_messages: diag(6165, ts.DiagnosticCategory.Message, "Do_not_truncate_error_messages_6165", "Do not truncate error messages."),
+        Output_directory_for_generated_declaration_files: diag(6166, ts.DiagnosticCategory.Message, "Output_directory_for_generated_declaration_files_6166", "Output directory for generated declaration files."),
+        A_series_of_entries_which_re_map_imports_to_lookup_locations_relative_to_the_baseUrl: diag(6167, ts.DiagnosticCategory.Message, "A_series_of_entries_which_re_map_imports_to_lookup_locations_relative_to_the_baseUrl_6167", "A series of entries which re-map imports to lookup locations relative to the 'baseUrl'."),
+        List_of_root_folders_whose_combined_content_represents_the_structure_of_the_project_at_runtime: diag(6168, ts.DiagnosticCategory.Message, "List_of_root_folders_whose_combined_content_represents_the_structure_of_the_project_at_runtime_6168", "List of root folders whose combined content represents the structure of the project at runtime."),
+        Show_all_compiler_options: diag(6169, ts.DiagnosticCategory.Message, "Show_all_compiler_options_6169", "Show all compiler options."),
+        Deprecated_Use_outFile_instead_Concatenate_and_emit_output_to_single_file: diag(6170, ts.DiagnosticCategory.Message, "Deprecated_Use_outFile_instead_Concatenate_and_emit_output_to_single_file_6170", "[Deprecated] Use '--outFile' instead. Concatenate and emit output to single file"),
+        Command_line_Options: diag(6171, ts.DiagnosticCategory.Message, "Command_line_Options_6171", "Command-line Options"),
+        Basic_Options: diag(6172, ts.DiagnosticCategory.Message, "Basic_Options_6172", "Basic Options"),
+        Strict_Type_Checking_Options: diag(6173, ts.DiagnosticCategory.Message, "Strict_Type_Checking_Options_6173", "Strict Type-Checking Options"),
+        Module_Resolution_Options: diag(6174, ts.DiagnosticCategory.Message, "Module_Resolution_Options_6174", "Module Resolution Options"),
+        Source_Map_Options: diag(6175, ts.DiagnosticCategory.Message, "Source_Map_Options_6175", "Source Map Options"),
+        Additional_Checks: diag(6176, ts.DiagnosticCategory.Message, "Additional_Checks_6176", "Additional Checks"),
+        Experimental_Options: diag(6177, ts.DiagnosticCategory.Message, "Experimental_Options_6177", "Experimental Options"),
+        Advanced_Options: diag(6178, ts.DiagnosticCategory.Message, "Advanced_Options_6178", "Advanced Options"),
+        Provide_full_support_for_iterables_in_for_of_spread_and_destructuring_when_targeting_ES5_or_ES3: diag(6179, ts.DiagnosticCategory.Message, "Provide_full_support_for_iterables_in_for_of_spread_and_destructuring_when_targeting_ES5_or_ES3_6179", "Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'."),
+        Enable_all_strict_type_checking_options: diag(6180, ts.DiagnosticCategory.Message, "Enable_all_strict_type_checking_options_6180", "Enable all strict type-checking options."),
+        List_of_language_service_plugins: diag(6181, ts.DiagnosticCategory.Message, "List_of_language_service_plugins_6181", "List of language service plugins."),
+        Scoped_package_detected_looking_in_0: diag(6182, ts.DiagnosticCategory.Message, "Scoped_package_detected_looking_in_0_6182", "Scoped package detected, looking in '{0}'"),
+        Reusing_resolution_of_module_0_to_file_1_from_old_program: diag(6183, ts.DiagnosticCategory.Message, "Reusing_resolution_of_module_0_to_file_1_from_old_program_6183", "Reusing resolution of module '{0}' to file '{1}' from old program."),
+        Reusing_module_resolutions_originating_in_0_since_resolutions_are_unchanged_from_old_program: diag(6184, ts.DiagnosticCategory.Message, "Reusing_module_resolutions_originating_in_0_since_resolutions_are_unchanged_from_old_program_6184", "Reusing module resolutions originating in '{0}' since resolutions are unchanged from old program."),
+        Disable_strict_checking_of_generic_signatures_in_function_types: diag(6185, ts.DiagnosticCategory.Message, "Disable_strict_checking_of_generic_signatures_in_function_types_6185", "Disable strict checking of generic signatures in function types."),
+        Enable_strict_checking_of_function_types: diag(6186, ts.DiagnosticCategory.Message, "Enable_strict_checking_of_function_types_6186", "Enable strict checking of function types."),
+        Enable_strict_checking_of_property_initialization_in_classes: diag(6187, ts.DiagnosticCategory.Message, "Enable_strict_checking_of_property_initialization_in_classes_6187", "Enable strict checking of property initialization in classes."),
+        Numeric_separators_are_not_allowed_here: diag(6188, ts.DiagnosticCategory.Error, "Numeric_separators_are_not_allowed_here_6188", "Numeric separators are not allowed here."),
+        Multiple_consecutive_numeric_separators_are_not_permitted: diag(6189, ts.DiagnosticCategory.Error, "Multiple_consecutive_numeric_separators_are_not_permitted_6189", "Multiple consecutive numeric separators are not permitted."),
+        Whether_to_keep_outdated_console_output_in_watch_mode_instead_of_clearing_the_screen: diag(6191, ts.DiagnosticCategory.Message, "Whether_to_keep_outdated_console_output_in_watch_mode_instead_of_clearing_the_screen_6191", "Whether to keep outdated console output in watch mode instead of clearing the screen."),
+        All_imports_in_import_declaration_are_unused: diag(6192, ts.DiagnosticCategory.Error, "All_imports_in_import_declaration_are_unused_6192", "All imports in import declaration are unused.", true),
+        Found_1_error_Watching_for_file_changes: diag(6193, ts.DiagnosticCategory.Message, "Found_1_error_Watching_for_file_changes_6193", "Found 1 error. Watching for file changes."),
+        Found_0_errors_Watching_for_file_changes: diag(6194, ts.DiagnosticCategory.Message, "Found_0_errors_Watching_for_file_changes_6194", "Found {0} errors. Watching for file changes."),
+        Resolve_keyof_to_string_valued_property_names_only_no_numbers_or_symbols: diag(6195, ts.DiagnosticCategory.Message, "Resolve_keyof_to_string_valued_property_names_only_no_numbers_or_symbols_6195", "Resolve 'keyof' to string valued property names only (no numbers or symbols)."),
+        _0_is_declared_but_never_used: diag(6196, ts.DiagnosticCategory.Error, "_0_is_declared_but_never_used_6196", "'{0}' is declared but never used.", true),
+        Include_modules_imported_with_json_extension: diag(6197, ts.DiagnosticCategory.Message, "Include_modules_imported_with_json_extension_6197", "Include modules imported with '.json' extension"),
+        All_destructured_elements_are_unused: diag(6198, ts.DiagnosticCategory.Error, "All_destructured_elements_are_unused_6198", "All destructured elements are unused.", true),
+        All_variables_are_unused: diag(6199, ts.DiagnosticCategory.Error, "All_variables_are_unused_6199", "All variables are unused.", true),
+        Definitions_of_the_following_identifiers_conflict_with_those_in_another_file_Colon_0: diag(6200, ts.DiagnosticCategory.Error, "Definitions_of_the_following_identifiers_conflict_with_those_in_another_file_Colon_0_6200", "Definitions of the following identifiers conflict with those in another file: {0}"),
+        Conflicts_are_in_this_file: diag(6201, ts.DiagnosticCategory.Message, "Conflicts_are_in_this_file_6201", "Conflicts are in this file."),
+        Project_references_may_not_form_a_circular_graph_Cycle_detected_Colon_0: diag(6202, ts.DiagnosticCategory.Error, "Project_references_may_not_form_a_circular_graph_Cycle_detected_Colon_0_6202", "Project references may not form a circular graph. Cycle detected: {0}"),
+        _0_was_also_declared_here: diag(6203, ts.DiagnosticCategory.Message, "_0_was_also_declared_here_6203", "'{0}' was also declared here."),
+        and_here: diag(6204, ts.DiagnosticCategory.Message, "and_here_6204", "and here."),
+        All_type_parameters_are_unused: diag(6205, ts.DiagnosticCategory.Error, "All_type_parameters_are_unused_6205", "All type parameters are unused"),
+        package_json_has_a_typesVersions_field_with_version_specific_path_mappings: diag(6206, ts.DiagnosticCategory.Message, "package_json_has_a_typesVersions_field_with_version_specific_path_mappings_6206", "'package.json' has a 'typesVersions' field with version-specific path mappings."),
+        package_json_does_not_have_a_typesVersions_entry_that_matches_version_0: diag(6207, ts.DiagnosticCategory.Message, "package_json_does_not_have_a_typesVersions_entry_that_matches_version_0_6207", "'package.json' does not have a 'typesVersions' entry that matches version '{0}'."),
+        package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_match_module_name_2: diag(6208, ts.DiagnosticCategory.Message, "package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_ma_6208", "'package.json' has a 'typesVersions' entry '{0}' that matches compiler version '{1}', looking for a pattern to match module name '{2}'."),
+        package_json_has_a_typesVersions_entry_0_that_is_not_a_valid_semver_range: diag(6209, ts.DiagnosticCategory.Message, "package_json_has_a_typesVersions_entry_0_that_is_not_a_valid_semver_range_6209", "'package.json' has a 'typesVersions' entry '{0}' that is not a valid semver range."),
+        An_argument_for_0_was_not_provided: diag(6210, ts.DiagnosticCategory.Message, "An_argument_for_0_was_not_provided_6210", "An argument for '{0}' was not provided."),
+        An_argument_matching_this_binding_pattern_was_not_provided: diag(6211, ts.DiagnosticCategory.Message, "An_argument_matching_this_binding_pattern_was_not_provided_6211", "An argument matching this binding pattern was not provided."),
+        Did_you_mean_to_call_this_expression: diag(6212, ts.DiagnosticCategory.Message, "Did_you_mean_to_call_this_expression_6212", "Did you mean to call this expression?"),
+        Did_you_mean_to_use_new_with_this_expression: diag(6213, ts.DiagnosticCategory.Message, "Did_you_mean_to_use_new_with_this_expression_6213", "Did you mean to use 'new' with this expression?"),
+        Enable_strict_bind_call_and_apply_methods_on_functions: diag(6214, ts.DiagnosticCategory.Message, "Enable_strict_bind_call_and_apply_methods_on_functions_6214", "Enable strict 'bind', 'call', and 'apply' methods on functions."),
+        Using_compiler_options_of_project_reference_redirect_0: diag(6215, ts.DiagnosticCategory.Message, "Using_compiler_options_of_project_reference_redirect_0_6215", "Using compiler options of project reference redirect '{0}'."),
+        Found_1_error: diag(6216, ts.DiagnosticCategory.Message, "Found_1_error_6216", "Found 1 error."),
+        Found_0_errors: diag(6217, ts.DiagnosticCategory.Message, "Found_0_errors_6217", "Found {0} errors."),
+        Module_name_0_was_successfully_resolved_to_1_with_Package_ID_2: diag(6218, ts.DiagnosticCategory.Message, "Module_name_0_was_successfully_resolved_to_1_with_Package_ID_2_6218", "======== Module name '{0}' was successfully resolved to '{1}' with Package ID '{2}'. ========"),
+        Type_reference_directive_0_was_successfully_resolved_to_1_with_Package_ID_2_primary_Colon_3: diag(6219, ts.DiagnosticCategory.Message, "Type_reference_directive_0_was_successfully_resolved_to_1_with_Package_ID_2_primary_Colon_3_6219", "======== Type reference directive '{0}' was successfully resolved to '{1}' with Package ID '{2}', primary: {3}. ========"),
+        package_json_had_a_falsy_0_field: diag(6220, ts.DiagnosticCategory.Message, "package_json_had_a_falsy_0_field_6220", "'package.json' had a falsy '{0}' field."),
+        Disable_use_of_source_files_instead_of_declaration_files_from_referenced_projects: diag(6221, ts.DiagnosticCategory.Message, "Disable_use_of_source_files_instead_of_declaration_files_from_referenced_projects_6221", "Disable use of source files instead of declaration files from referenced projects."),
+        Emit_class_fields_with_Define_instead_of_Set: diag(6222, ts.DiagnosticCategory.Message, "Emit_class_fields_with_Define_instead_of_Set_6222", "Emit class fields with Define instead of Set."),
+        Generates_a_CPU_profile: diag(6223, ts.DiagnosticCategory.Message, "Generates_a_CPU_profile_6223", "Generates a CPU profile."),
+        Disable_solution_searching_for_this_project: diag(6224, ts.DiagnosticCategory.Message, "Disable_solution_searching_for_this_project_6224", "Disable solution searching for this project."),
+        Specify_strategy_for_watching_file_Colon_FixedPollingInterval_default_PriorityPollingInterval_DynamicPriorityPolling_UseFsEvents_UseFsEventsOnParentDirectory: diag(6225, ts.DiagnosticCategory.Message, "Specify_strategy_for_watching_file_Colon_FixedPollingInterval_default_PriorityPollingInterval_Dynami_6225", "Specify strategy for watching file: 'FixedPollingInterval' (default), 'PriorityPollingInterval', 'DynamicPriorityPolling', 'UseFsEvents', 'UseFsEventsOnParentDirectory'."),
+        Specify_strategy_for_watching_directory_on_platforms_that_don_t_support_recursive_watching_natively_Colon_UseFsEvents_default_FixedPollingInterval_DynamicPriorityPolling: diag(6226, ts.DiagnosticCategory.Message, "Specify_strategy_for_watching_directory_on_platforms_that_don_t_support_recursive_watching_natively__6226", "Specify strategy for watching directory on platforms that don't support recursive watching natively: 'UseFsEvents' (default), 'FixedPollingInterval', 'DynamicPriorityPolling'."),
+        Specify_strategy_for_creating_a_polling_watch_when_it_fails_to_create_using_file_system_events_Colon_FixedInterval_default_PriorityInterval_DynamicPriority: diag(6227, ts.DiagnosticCategory.Message, "Specify_strategy_for_creating_a_polling_watch_when_it_fails_to_create_using_file_system_events_Colon_6227", "Specify strategy for creating a polling watch when it fails to create using file system events: 'FixedInterval' (default), 'PriorityInterval', 'DynamicPriority'."),
+        Synchronously_call_callbacks_and_update_the_state_of_directory_watchers_on_platforms_that_don_t_support_recursive_watching_natively: diag(6228, ts.DiagnosticCategory.Message, "Synchronously_call_callbacks_and_update_the_state_of_directory_watchers_on_platforms_that_don_t_supp_6228", "Synchronously call callbacks and update the state of directory watchers on platforms that don't support recursive watching natively."),
+        Tag_0_expects_at_least_1_arguments_but_the_JSX_factory_2_provides_at_most_3: diag(6229, ts.DiagnosticCategory.Error, "Tag_0_expects_at_least_1_arguments_but_the_JSX_factory_2_provides_at_most_3_6229", "Tag '{0}' expects at least '{1}' arguments, but the JSX factory '{2}' provides at most '{3}'."),
+        Option_0_can_only_be_specified_in_tsconfig_json_file_or_set_to_false_or_null_on_command_line: diag(6230, ts.DiagnosticCategory.Error, "Option_0_can_only_be_specified_in_tsconfig_json_file_or_set_to_false_or_null_on_command_line_6230", "Option '{0}' can only be specified in 'tsconfig.json' file or set to 'false' or 'null' on command line."),
+        Could_not_resolve_the_path_0_with_the_extensions_Colon_1: diag(6231, ts.DiagnosticCategory.Error, "Could_not_resolve_the_path_0_with_the_extensions_Colon_1_6231", "Could not resolve the path '{0}' with the extensions: {1}."),
+        Declaration_augments_declaration_in_another_file_This_cannot_be_serialized: diag(6232, ts.DiagnosticCategory.Error, "Declaration_augments_declaration_in_another_file_This_cannot_be_serialized_6232", "Declaration augments declaration in another file. This cannot be serialized."),
+        This_is_the_declaration_being_augmented_Consider_moving_the_augmenting_declaration_into_the_same_file: diag(6233, ts.DiagnosticCategory.Error, "This_is_the_declaration_being_augmented_Consider_moving_the_augmenting_declaration_into_the_same_fil_6233", "This is the declaration being augmented. Consider moving the augmenting declaration into the same file."),
+        Projects_to_reference: diag(6300, ts.DiagnosticCategory.Message, "Projects_to_reference_6300", "Projects to reference"),
+        Enable_project_compilation: diag(6302, ts.DiagnosticCategory.Message, "Enable_project_compilation_6302", "Enable project compilation"),
+        Composite_projects_may_not_disable_declaration_emit: diag(6304, ts.DiagnosticCategory.Error, "Composite_projects_may_not_disable_declaration_emit_6304", "Composite projects may not disable declaration emit."),
+        Output_file_0_has_not_been_built_from_source_file_1: diag(6305, ts.DiagnosticCategory.Error, "Output_file_0_has_not_been_built_from_source_file_1_6305", "Output file '{0}' has not been built from source file '{1}'."),
+        Referenced_project_0_must_have_setting_composite_Colon_true: diag(6306, ts.DiagnosticCategory.Error, "Referenced_project_0_must_have_setting_composite_Colon_true_6306", "Referenced project '{0}' must have setting \"composite\": true."),
+        File_0_is_not_listed_within_the_file_list_of_project_1_Projects_must_list_all_files_or_use_an_include_pattern: diag(6307, ts.DiagnosticCategory.Error, "File_0_is_not_listed_within_the_file_list_of_project_1_Projects_must_list_all_files_or_use_an_includ_6307", "File '{0}' is not listed within the file list of project '{1}'. Projects must list all files or use an 'include' pattern."),
+        Cannot_prepend_project_0_because_it_does_not_have_outFile_set: diag(6308, ts.DiagnosticCategory.Error, "Cannot_prepend_project_0_because_it_does_not_have_outFile_set_6308", "Cannot prepend project '{0}' because it does not have 'outFile' set"),
+        Output_file_0_from_project_1_does_not_exist: diag(6309, ts.DiagnosticCategory.Error, "Output_file_0_from_project_1_does_not_exist_6309", "Output file '{0}' from project '{1}' does not exist"),
+        Project_0_is_out_of_date_because_oldest_output_1_is_older_than_newest_input_2: diag(6350, ts.DiagnosticCategory.Message, "Project_0_is_out_of_date_because_oldest_output_1_is_older_than_newest_input_2_6350", "Project '{0}' is out of date because oldest output '{1}' is older than newest input '{2}'"),
+        Project_0_is_up_to_date_because_newest_input_1_is_older_than_oldest_output_2: diag(6351, ts.DiagnosticCategory.Message, "Project_0_is_up_to_date_because_newest_input_1_is_older_than_oldest_output_2_6351", "Project '{0}' is up to date because newest input '{1}' is older than oldest output '{2}'"),
+        Project_0_is_out_of_date_because_output_file_1_does_not_exist: diag(6352, ts.DiagnosticCategory.Message, "Project_0_is_out_of_date_because_output_file_1_does_not_exist_6352", "Project '{0}' is out of date because output file '{1}' does not exist"),
+        Project_0_is_out_of_date_because_its_dependency_1_is_out_of_date: diag(6353, ts.DiagnosticCategory.Message, "Project_0_is_out_of_date_because_its_dependency_1_is_out_of_date_6353", "Project '{0}' is out of date because its dependency '{1}' is out of date"),
+        Project_0_is_up_to_date_with_d_ts_files_from_its_dependencies: diag(6354, ts.DiagnosticCategory.Message, "Project_0_is_up_to_date_with_d_ts_files_from_its_dependencies_6354", "Project '{0}' is up to date with .d.ts files from its dependencies"),
+        Projects_in_this_build_Colon_0: diag(6355, ts.DiagnosticCategory.Message, "Projects_in_this_build_Colon_0_6355", "Projects in this build: {0}"),
+        A_non_dry_build_would_delete_the_following_files_Colon_0: diag(6356, ts.DiagnosticCategory.Message, "A_non_dry_build_would_delete_the_following_files_Colon_0_6356", "A non-dry build would delete the following files: {0}"),
+        A_non_dry_build_would_build_project_0: diag(6357, ts.DiagnosticCategory.Message, "A_non_dry_build_would_build_project_0_6357", "A non-dry build would build project '{0}'"),
+        Building_project_0: diag(6358, ts.DiagnosticCategory.Message, "Building_project_0_6358", "Building project '{0}'..."),
+        Updating_output_timestamps_of_project_0: diag(6359, ts.DiagnosticCategory.Message, "Updating_output_timestamps_of_project_0_6359", "Updating output timestamps of project '{0}'..."),
+        delete_this_Project_0_is_up_to_date_because_it_was_previously_built: diag(6360, ts.DiagnosticCategory.Message, "delete_this_Project_0_is_up_to_date_because_it_was_previously_built_6360", "delete this - Project '{0}' is up to date because it was previously built"),
+        Project_0_is_up_to_date: diag(6361, ts.DiagnosticCategory.Message, "Project_0_is_up_to_date_6361", "Project '{0}' is up to date"),
+        Skipping_build_of_project_0_because_its_dependency_1_has_errors: diag(6362, ts.DiagnosticCategory.Message, "Skipping_build_of_project_0_because_its_dependency_1_has_errors_6362", "Skipping build of project '{0}' because its dependency '{1}' has errors"),
+        Project_0_can_t_be_built_because_its_dependency_1_has_errors: diag(6363, ts.DiagnosticCategory.Message, "Project_0_can_t_be_built_because_its_dependency_1_has_errors_6363", "Project '{0}' can't be built because its dependency '{1}' has errors"),
+        Build_one_or_more_projects_and_their_dependencies_if_out_of_date: diag(6364, ts.DiagnosticCategory.Message, "Build_one_or_more_projects_and_their_dependencies_if_out_of_date_6364", "Build one or more projects and their dependencies, if out of date"),
+        Delete_the_outputs_of_all_projects: diag(6365, ts.DiagnosticCategory.Message, "Delete_the_outputs_of_all_projects_6365", "Delete the outputs of all projects"),
+        Enable_verbose_logging: diag(6366, ts.DiagnosticCategory.Message, "Enable_verbose_logging_6366", "Enable verbose logging"),
+        Show_what_would_be_built_or_deleted_if_specified_with_clean: diag(6367, ts.DiagnosticCategory.Message, "Show_what_would_be_built_or_deleted_if_specified_with_clean_6367", "Show what would be built (or deleted, if specified with '--clean')"),
+        Build_all_projects_including_those_that_appear_to_be_up_to_date: diag(6368, ts.DiagnosticCategory.Message, "Build_all_projects_including_those_that_appear_to_be_up_to_date_6368", "Build all projects, including those that appear to be up to date"),
+        Option_build_must_be_the_first_command_line_argument: diag(6369, ts.DiagnosticCategory.Error, "Option_build_must_be_the_first_command_line_argument_6369", "Option '--build' must be the first command line argument."),
+        Options_0_and_1_cannot_be_combined: diag(6370, ts.DiagnosticCategory.Error, "Options_0_and_1_cannot_be_combined_6370", "Options '{0}' and '{1}' cannot be combined."),
+        Updating_unchanged_output_timestamps_of_project_0: diag(6371, ts.DiagnosticCategory.Message, "Updating_unchanged_output_timestamps_of_project_0_6371", "Updating unchanged output timestamps of project '{0}'..."),
+        Project_0_is_out_of_date_because_output_of_its_dependency_1_has_changed: diag(6372, ts.DiagnosticCategory.Message, "Project_0_is_out_of_date_because_output_of_its_dependency_1_has_changed_6372", "Project '{0}' is out of date because output of its dependency '{1}' has changed"),
+        Updating_output_of_project_0: diag(6373, ts.DiagnosticCategory.Message, "Updating_output_of_project_0_6373", "Updating output of project '{0}'..."),
+        A_non_dry_build_would_update_timestamps_for_output_of_project_0: diag(6374, ts.DiagnosticCategory.Message, "A_non_dry_build_would_update_timestamps_for_output_of_project_0_6374", "A non-dry build would update timestamps for output of project '{0}'"),
+        A_non_dry_build_would_update_output_of_project_0: diag(6375, ts.DiagnosticCategory.Message, "A_non_dry_build_would_update_output_of_project_0_6375", "A non-dry build would update output of project '{0}'"),
+        Cannot_update_output_of_project_0_because_there_was_error_reading_file_1: diag(6376, ts.DiagnosticCategory.Message, "Cannot_update_output_of_project_0_because_there_was_error_reading_file_1_6376", "Cannot update output of project '{0}' because there was error reading file '{1}'"),
+        Cannot_write_file_0_because_it_will_overwrite_tsbuildinfo_file_generated_by_referenced_project_1: diag(6377, ts.DiagnosticCategory.Error, "Cannot_write_file_0_because_it_will_overwrite_tsbuildinfo_file_generated_by_referenced_project_1_6377", "Cannot write file '{0}' because it will overwrite '.tsbuildinfo' file generated by referenced project '{1}'"),
+        Enable_incremental_compilation: diag(6378, ts.DiagnosticCategory.Message, "Enable_incremental_compilation_6378", "Enable incremental compilation"),
+        Composite_projects_may_not_disable_incremental_compilation: diag(6379, ts.DiagnosticCategory.Error, "Composite_projects_may_not_disable_incremental_compilation_6379", "Composite projects may not disable incremental compilation."),
+        Specify_file_to_store_incremental_compilation_information: diag(6380, ts.DiagnosticCategory.Message, "Specify_file_to_store_incremental_compilation_information_6380", "Specify file to store incremental compilation information"),
+        Project_0_is_out_of_date_because_output_for_it_was_generated_with_version_1_that_differs_with_current_version_2: diag(6381, ts.DiagnosticCategory.Message, "Project_0_is_out_of_date_because_output_for_it_was_generated_with_version_1_that_differs_with_curren_6381", "Project '{0}' is out of date because output for it was generated with version '{1}' that differs with current version '{2}'"),
+        Skipping_build_of_project_0_because_its_dependency_1_was_not_built: diag(6382, ts.DiagnosticCategory.Message, "Skipping_build_of_project_0_because_its_dependency_1_was_not_built_6382", "Skipping build of project '{0}' because its dependency '{1}' was not built"),
+        Project_0_can_t_be_built_because_its_dependency_1_was_not_built: diag(6383, ts.DiagnosticCategory.Message, "Project_0_can_t_be_built_because_its_dependency_1_was_not_built_6383", "Project '{0}' can't be built because its dependency '{1}' was not built"),
+        Have_recompiles_in_incremental_and_watch_assume_that_changes_within_a_file_will_only_affect_files_directly_depending_on_it: diag(6384, ts.DiagnosticCategory.Message, "Have_recompiles_in_incremental_and_watch_assume_that_changes_within_a_file_will_only_affect_files_di_6384", "Have recompiles in '--incremental' and '--watch' assume that changes within a file will only affect files directly depending on it."),
+        The_expected_type_comes_from_property_0_which_is_declared_here_on_type_1: diag(6500, ts.DiagnosticCategory.Message, "The_expected_type_comes_from_property_0_which_is_declared_here_on_type_1_6500", "The expected type comes from property '{0}' which is declared here on type '{1}'"),
+        The_expected_type_comes_from_this_index_signature: diag(6501, ts.DiagnosticCategory.Message, "The_expected_type_comes_from_this_index_signature_6501", "The expected type comes from this index signature."),
+        The_expected_type_comes_from_the_return_type_of_this_signature: diag(6502, ts.DiagnosticCategory.Message, "The_expected_type_comes_from_the_return_type_of_this_signature_6502", "The expected type comes from the return type of this signature."),
+        Print_names_of_files_that_are_part_of_the_compilation_and_then_stop_processing: diag(6503, ts.DiagnosticCategory.Message, "Print_names_of_files_that_are_part_of_the_compilation_and_then_stop_processing_6503", "Print names of files that are part of the compilation and then stop processing."),
+        File_0_is_a_JavaScript_file_Did_you_mean_to_enable_the_allowJs_option: diag(6504, ts.DiagnosticCategory.Error, "File_0_is_a_JavaScript_file_Did_you_mean_to_enable_the_allowJs_option_6504", "File '{0}' is a JavaScript file. Did you mean to enable the 'allowJs' option?"),
+        Variable_0_implicitly_has_an_1_type: diag(7005, ts.DiagnosticCategory.Error, "Variable_0_implicitly_has_an_1_type_7005", "Variable '{0}' implicitly has an '{1}' type."),
+        Parameter_0_implicitly_has_an_1_type: diag(7006, ts.DiagnosticCategory.Error, "Parameter_0_implicitly_has_an_1_type_7006", "Parameter '{0}' implicitly has an '{1}' type."),
+        Member_0_implicitly_has_an_1_type: diag(7008, ts.DiagnosticCategory.Error, "Member_0_implicitly_has_an_1_type_7008", "Member '{0}' implicitly has an '{1}' type."),
+        new_expression_whose_target_lacks_a_construct_signature_implicitly_has_an_any_type: diag(7009, ts.DiagnosticCategory.Error, "new_expression_whose_target_lacks_a_construct_signature_implicitly_has_an_any_type_7009", "'new' expression, whose target lacks a construct signature, implicitly has an 'any' type."),
+        _0_which_lacks_return_type_annotation_implicitly_has_an_1_return_type: diag(7010, ts.DiagnosticCategory.Error, "_0_which_lacks_return_type_annotation_implicitly_has_an_1_return_type_7010", "'{0}', which lacks return-type annotation, implicitly has an '{1}' return type."),
+        Function_expression_which_lacks_return_type_annotation_implicitly_has_an_0_return_type: diag(7011, ts.DiagnosticCategory.Error, "Function_expression_which_lacks_return_type_annotation_implicitly_has_an_0_return_type_7011", "Function expression, which lacks return-type annotation, implicitly has an '{0}' return type."),
+        Construct_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type: diag(7013, ts.DiagnosticCategory.Error, "Construct_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type_7013", "Construct signature, which lacks return-type annotation, implicitly has an 'any' return type."),
+        Function_type_which_lacks_return_type_annotation_implicitly_has_an_0_return_type: diag(7014, ts.DiagnosticCategory.Error, "Function_type_which_lacks_return_type_annotation_implicitly_has_an_0_return_type_7014", "Function type, which lacks return-type annotation, implicitly has an '{0}' return type."),
+        Element_implicitly_has_an_any_type_because_index_expression_is_not_of_type_number: diag(7015, ts.DiagnosticCategory.Error, "Element_implicitly_has_an_any_type_because_index_expression_is_not_of_type_number_7015", "Element implicitly has an 'any' type because index expression is not of type 'number'."),
+        Could_not_find_a_declaration_file_for_module_0_1_implicitly_has_an_any_type: diag(7016, ts.DiagnosticCategory.Error, "Could_not_find_a_declaration_file_for_module_0_1_implicitly_has_an_any_type_7016", "Could not find a declaration file for module '{0}'. '{1}' implicitly has an 'any' type."),
+        Element_implicitly_has_an_any_type_because_type_0_has_no_index_signature: diag(7017, ts.DiagnosticCategory.Error, "Element_implicitly_has_an_any_type_because_type_0_has_no_index_signature_7017", "Element implicitly has an 'any' type because type '{0}' has no index signature."),
+        Object_literal_s_property_0_implicitly_has_an_1_type: diag(7018, ts.DiagnosticCategory.Error, "Object_literal_s_property_0_implicitly_has_an_1_type_7018", "Object literal's property '{0}' implicitly has an '{1}' type."),
+        Rest_parameter_0_implicitly_has_an_any_type: diag(7019, ts.DiagnosticCategory.Error, "Rest_parameter_0_implicitly_has_an_any_type_7019", "Rest parameter '{0}' implicitly has an 'any[]' type."),
+        Call_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type: diag(7020, ts.DiagnosticCategory.Error, "Call_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type_7020", "Call signature, which lacks return-type annotation, implicitly has an 'any' return type."),
+        _0_implicitly_has_type_any_because_it_does_not_have_a_type_annotation_and_is_referenced_directly_or_indirectly_in_its_own_initializer: diag(7022, ts.DiagnosticCategory.Error, "_0_implicitly_has_type_any_because_it_does_not_have_a_type_annotation_and_is_referenced_directly_or__7022", "'{0}' implicitly has type 'any' because it does not have a type annotation and is referenced directly or indirectly in its own initializer."),
+        _0_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions: diag(7023, ts.DiagnosticCategory.Error, "_0_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_reference_7023", "'{0}' implicitly has return type 'any' because it does not have a return type annotation and is referenced directly or indirectly in one of its return expressions."),
+        Function_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions: diag(7024, ts.DiagnosticCategory.Error, "Function_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_ref_7024", "Function implicitly has return type 'any' because it does not have a return type annotation and is referenced directly or indirectly in one of its return expressions."),
+        Generator_implicitly_has_yield_type_0_because_it_does_not_yield_any_values_Consider_supplying_a_return_type_annotation: diag(7025, ts.DiagnosticCategory.Error, "Generator_implicitly_has_yield_type_0_because_it_does_not_yield_any_values_Consider_supplying_a_retu_7025", "Generator implicitly has yield type '{0}' because it does not yield any values. Consider supplying a return type annotation."),
+        JSX_element_implicitly_has_type_any_because_no_interface_JSX_0_exists: diag(7026, ts.DiagnosticCategory.Error, "JSX_element_implicitly_has_type_any_because_no_interface_JSX_0_exists_7026", "JSX element implicitly has type 'any' because no interface 'JSX.{0}' exists."),
+        Unreachable_code_detected: diag(7027, ts.DiagnosticCategory.Error, "Unreachable_code_detected_7027", "Unreachable code detected.", true),
+        Unused_label: diag(7028, ts.DiagnosticCategory.Error, "Unused_label_7028", "Unused label.", true),
+        Fallthrough_case_in_switch: diag(7029, ts.DiagnosticCategory.Error, "Fallthrough_case_in_switch_7029", "Fallthrough case in switch."),
+        Not_all_code_paths_return_a_value: diag(7030, ts.DiagnosticCategory.Error, "Not_all_code_paths_return_a_value_7030", "Not all code paths return a value."),
+        Binding_element_0_implicitly_has_an_1_type: diag(7031, ts.DiagnosticCategory.Error, "Binding_element_0_implicitly_has_an_1_type_7031", "Binding element '{0}' implicitly has an '{1}' type."),
+        Property_0_implicitly_has_type_any_because_its_set_accessor_lacks_a_parameter_type_annotation: diag(7032, ts.DiagnosticCategory.Error, "Property_0_implicitly_has_type_any_because_its_set_accessor_lacks_a_parameter_type_annotation_7032", "Property '{0}' implicitly has type 'any', because its set accessor lacks a parameter type annotation."),
+        Property_0_implicitly_has_type_any_because_its_get_accessor_lacks_a_return_type_annotation: diag(7033, ts.DiagnosticCategory.Error, "Property_0_implicitly_has_type_any_because_its_get_accessor_lacks_a_return_type_annotation_7033", "Property '{0}' implicitly has type 'any', because its get accessor lacks a return type annotation."),
+        Variable_0_implicitly_has_type_1_in_some_locations_where_its_type_cannot_be_determined: diag(7034, ts.DiagnosticCategory.Error, "Variable_0_implicitly_has_type_1_in_some_locations_where_its_type_cannot_be_determined_7034", "Variable '{0}' implicitly has type '{1}' in some locations where its type cannot be determined."),
+        Try_npm_install_types_Slash_1_if_it_exists_or_add_a_new_declaration_d_ts_file_containing_declare_module_0: diag(7035, ts.DiagnosticCategory.Error, "Try_npm_install_types_Slash_1_if_it_exists_or_add_a_new_declaration_d_ts_file_containing_declare_mod_7035", "Try `npm install @types/{1}` if it exists or add a new declaration (.d.ts) file containing `declare module '{0}';`"),
+        Dynamic_import_s_specifier_must_be_of_type_string_but_here_has_type_0: diag(7036, ts.DiagnosticCategory.Error, "Dynamic_import_s_specifier_must_be_of_type_string_but_here_has_type_0_7036", "Dynamic import's specifier must be of type 'string', but here has type '{0}'."),
+        Enables_emit_interoperability_between_CommonJS_and_ES_Modules_via_creation_of_namespace_objects_for_all_imports_Implies_allowSyntheticDefaultImports: diag(7037, ts.DiagnosticCategory.Message, "Enables_emit_interoperability_between_CommonJS_and_ES_Modules_via_creation_of_namespace_objects_for__7037", "Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'."),
+        Type_originates_at_this_import_A_namespace_style_import_cannot_be_called_or_constructed_and_will_cause_a_failure_at_runtime_Consider_using_a_default_import_or_import_require_here_instead: diag(7038, ts.DiagnosticCategory.Message, "Type_originates_at_this_import_A_namespace_style_import_cannot_be_called_or_constructed_and_will_cau_7038", "Type originates at this import. A namespace-style import cannot be called or constructed, and will cause a failure at runtime. Consider using a default import or import require here instead."),
+        Mapped_object_type_implicitly_has_an_any_template_type: diag(7039, ts.DiagnosticCategory.Error, "Mapped_object_type_implicitly_has_an_any_template_type_7039", "Mapped object type implicitly has an 'any' template type."),
+        If_the_0_package_actually_exposes_this_module_consider_sending_a_pull_request_to_amend_https_Colon_Slash_Slashgithub_com_SlashDefinitelyTyped_SlashDefinitelyTyped_Slashtree_Slashmaster_Slashtypes_Slash_1: diag(7040, ts.DiagnosticCategory.Error, "If_the_0_package_actually_exposes_this_module_consider_sending_a_pull_request_to_amend_https_Colon_S_7040", "If the '{0}' package actually exposes this module, consider sending a pull request to amend 'https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/{1}`"),
+        The_containing_arrow_function_captures_the_global_value_of_this: diag(7041, ts.DiagnosticCategory.Error, "The_containing_arrow_function_captures_the_global_value_of_this_7041", "The containing arrow function captures the global value of 'this'."),
+        Module_0_was_resolved_to_1_but_resolveJsonModule_is_not_used: diag(7042, ts.DiagnosticCategory.Error, "Module_0_was_resolved_to_1_but_resolveJsonModule_is_not_used_7042", "Module '{0}' was resolved to '{1}', but '--resolveJsonModule' is not used."),
+        Variable_0_implicitly_has_an_1_type_but_a_better_type_may_be_inferred_from_usage: diag(7043, ts.DiagnosticCategory.Suggestion, "Variable_0_implicitly_has_an_1_type_but_a_better_type_may_be_inferred_from_usage_7043", "Variable '{0}' implicitly has an '{1}' type, but a better type may be inferred from usage."),
+        Parameter_0_implicitly_has_an_1_type_but_a_better_type_may_be_inferred_from_usage: diag(7044, ts.DiagnosticCategory.Suggestion, "Parameter_0_implicitly_has_an_1_type_but_a_better_type_may_be_inferred_from_usage_7044", "Parameter '{0}' implicitly has an '{1}' type, but a better type may be inferred from usage."),
+        Member_0_implicitly_has_an_1_type_but_a_better_type_may_be_inferred_from_usage: diag(7045, ts.DiagnosticCategory.Suggestion, "Member_0_implicitly_has_an_1_type_but_a_better_type_may_be_inferred_from_usage_7045", "Member '{0}' implicitly has an '{1}' type, but a better type may be inferred from usage."),
+        Variable_0_implicitly_has_type_1_in_some_locations_but_a_better_type_may_be_inferred_from_usage: diag(7046, ts.DiagnosticCategory.Suggestion, "Variable_0_implicitly_has_type_1_in_some_locations_but_a_better_type_may_be_inferred_from_usage_7046", "Variable '{0}' implicitly has type '{1}' in some locations, but a better type may be inferred from usage."),
+        Rest_parameter_0_implicitly_has_an_any_type_but_a_better_type_may_be_inferred_from_usage: diag(7047, ts.DiagnosticCategory.Suggestion, "Rest_parameter_0_implicitly_has_an_any_type_but_a_better_type_may_be_inferred_from_usage_7047", "Rest parameter '{0}' implicitly has an 'any[]' type, but a better type may be inferred from usage."),
+        Property_0_implicitly_has_type_any_but_a_better_type_for_its_get_accessor_may_be_inferred_from_usage: diag(7048, ts.DiagnosticCategory.Suggestion, "Property_0_implicitly_has_type_any_but_a_better_type_for_its_get_accessor_may_be_inferred_from_usage_7048", "Property '{0}' implicitly has type 'any', but a better type for its get accessor may be inferred from usage."),
+        Property_0_implicitly_has_type_any_but_a_better_type_for_its_set_accessor_may_be_inferred_from_usage: diag(7049, ts.DiagnosticCategory.Suggestion, "Property_0_implicitly_has_type_any_but_a_better_type_for_its_set_accessor_may_be_inferred_from_usage_7049", "Property '{0}' implicitly has type 'any', but a better type for its set accessor may be inferred from usage."),
+        _0_implicitly_has_an_1_return_type_but_a_better_type_may_be_inferred_from_usage: diag(7050, ts.DiagnosticCategory.Suggestion, "_0_implicitly_has_an_1_return_type_but_a_better_type_may_be_inferred_from_usage_7050", "'{0}' implicitly has an '{1}' return type, but a better type may be inferred from usage."),
+        Parameter_has_a_name_but_no_type_Did_you_mean_0_Colon_1: diag(7051, ts.DiagnosticCategory.Error, "Parameter_has_a_name_but_no_type_Did_you_mean_0_Colon_1_7051", "Parameter has a name but no type. Did you mean '{0}: {1}'?"),
+        Element_implicitly_has_an_any_type_because_type_0_has_no_index_signature_Did_you_mean_to_call_1: diag(7052, ts.DiagnosticCategory.Error, "Element_implicitly_has_an_any_type_because_type_0_has_no_index_signature_Did_you_mean_to_call_1_7052", "Element implicitly has an 'any' type because type '{0}' has no index signature. Did you mean to call '{1}'?"),
+        Element_implicitly_has_an_any_type_because_expression_of_type_0_can_t_be_used_to_index_type_1: diag(7053, ts.DiagnosticCategory.Error, "Element_implicitly_has_an_any_type_because_expression_of_type_0_can_t_be_used_to_index_type_1_7053", "Element implicitly has an 'any' type because expression of type '{0}' can't be used to index type '{1}'."),
+        No_index_signature_with_a_parameter_of_type_0_was_found_on_type_1: diag(7054, ts.DiagnosticCategory.Error, "No_index_signature_with_a_parameter_of_type_0_was_found_on_type_1_7054", "No index signature with a parameter of type '{0}' was found on type '{1}'."),
+        _0_which_lacks_return_type_annotation_implicitly_has_an_1_yield_type: diag(7055, ts.DiagnosticCategory.Error, "_0_which_lacks_return_type_annotation_implicitly_has_an_1_yield_type_7055", "'{0}', which lacks return-type annotation, implicitly has an '{1}' yield type."),
+        You_cannot_rename_this_element: diag(8000, ts.DiagnosticCategory.Error, "You_cannot_rename_this_element_8000", "You cannot rename this element."),
+        You_cannot_rename_elements_that_are_defined_in_the_standard_TypeScript_library: diag(8001, ts.DiagnosticCategory.Error, "You_cannot_rename_elements_that_are_defined_in_the_standard_TypeScript_library_8001", "You cannot rename elements that are defined in the standard TypeScript library."),
+        import_can_only_be_used_in_TypeScript_files: diag(8002, ts.DiagnosticCategory.Error, "import_can_only_be_used_in_TypeScript_files_8002", "'import ... =' can only be used in TypeScript files."),
+        export_can_only_be_used_in_TypeScript_files: diag(8003, ts.DiagnosticCategory.Error, "export_can_only_be_used_in_TypeScript_files_8003", "'export =' can only be used in TypeScript files."),
+        Type_parameter_declarations_can_only_be_used_in_TypeScript_files: diag(8004, ts.DiagnosticCategory.Error, "Type_parameter_declarations_can_only_be_used_in_TypeScript_files_8004", "Type parameter declarations can only be used in TypeScript files."),
+        implements_clauses_can_only_be_used_in_TypeScript_files: diag(8005, ts.DiagnosticCategory.Error, "implements_clauses_can_only_be_used_in_TypeScript_files_8005", "'implements' clauses can only be used in TypeScript files."),
+        _0_declarations_can_only_be_used_in_TypeScript_files: diag(8006, ts.DiagnosticCategory.Error, "_0_declarations_can_only_be_used_in_TypeScript_files_8006", "'{0}' declarations can only be used in TypeScript files."),
+        Type_aliases_can_only_be_used_in_TypeScript_files: diag(8008, ts.DiagnosticCategory.Error, "Type_aliases_can_only_be_used_in_TypeScript_files_8008", "Type aliases can only be used in TypeScript files."),
+        The_0_modifier_can_only_be_used_in_TypeScript_files: diag(8009, ts.DiagnosticCategory.Error, "The_0_modifier_can_only_be_used_in_TypeScript_files_8009", "The '{0}' modifier can only be used in TypeScript files."),
+        Type_annotations_can_only_be_used_in_TypeScript_files: diag(8010, ts.DiagnosticCategory.Error, "Type_annotations_can_only_be_used_in_TypeScript_files_8010", "Type annotations can only be used in TypeScript files."),
+        Type_arguments_can_only_be_used_in_TypeScript_files: diag(8011, ts.DiagnosticCategory.Error, "Type_arguments_can_only_be_used_in_TypeScript_files_8011", "Type arguments can only be used in TypeScript files."),
+        Parameter_modifiers_can_only_be_used_in_TypeScript_files: diag(8012, ts.DiagnosticCategory.Error, "Parameter_modifiers_can_only_be_used_in_TypeScript_files_8012", "Parameter modifiers can only be used in TypeScript files."),
+        Non_null_assertions_can_only_be_used_in_TypeScript_files: diag(8013, ts.DiagnosticCategory.Error, "Non_null_assertions_can_only_be_used_in_TypeScript_files_8013", "Non-null assertions can only be used in TypeScript files."),
+        Type_assertion_expressions_can_only_be_used_in_TypeScript_files: diag(8016, ts.DiagnosticCategory.Error, "Type_assertion_expressions_can_only_be_used_in_TypeScript_files_8016", "Type assertion expressions can only be used in TypeScript files."),
+        Octal_literal_types_must_use_ES2015_syntax_Use_the_syntax_0: diag(8017, ts.DiagnosticCategory.Error, "Octal_literal_types_must_use_ES2015_syntax_Use_the_syntax_0_8017", "Octal literal types must use ES2015 syntax. Use the syntax '{0}'."),
+        Octal_literals_are_not_allowed_in_enums_members_initializer_Use_the_syntax_0: diag(8018, ts.DiagnosticCategory.Error, "Octal_literals_are_not_allowed_in_enums_members_initializer_Use_the_syntax_0_8018", "Octal literals are not allowed in enums members initializer. Use the syntax '{0}'."),
+        Report_errors_in_js_files: diag(8019, ts.DiagnosticCategory.Message, "Report_errors_in_js_files_8019", "Report errors in .js files."),
+        JSDoc_types_can_only_be_used_inside_documentation_comments: diag(8020, ts.DiagnosticCategory.Error, "JSDoc_types_can_only_be_used_inside_documentation_comments_8020", "JSDoc types can only be used inside documentation comments."),
+        JSDoc_typedef_tag_should_either_have_a_type_annotation_or_be_followed_by_property_or_member_tags: diag(8021, ts.DiagnosticCategory.Error, "JSDoc_typedef_tag_should_either_have_a_type_annotation_or_be_followed_by_property_or_member_tags_8021", "JSDoc '@typedef' tag should either have a type annotation or be followed by '@property' or '@member' tags."),
+        JSDoc_0_is_not_attached_to_a_class: diag(8022, ts.DiagnosticCategory.Error, "JSDoc_0_is_not_attached_to_a_class_8022", "JSDoc '@{0}' is not attached to a class."),
+        JSDoc_0_1_does_not_match_the_extends_2_clause: diag(8023, ts.DiagnosticCategory.Error, "JSDoc_0_1_does_not_match_the_extends_2_clause_8023", "JSDoc '@{0} {1}' does not match the 'extends {2}' clause."),
+        JSDoc_param_tag_has_name_0_but_there_is_no_parameter_with_that_name: diag(8024, ts.DiagnosticCategory.Error, "JSDoc_param_tag_has_name_0_but_there_is_no_parameter_with_that_name_8024", "JSDoc '@param' tag has name '{0}', but there is no parameter with that name."),
+        Class_declarations_cannot_have_more_than_one_augments_or_extends_tag: diag(8025, ts.DiagnosticCategory.Error, "Class_declarations_cannot_have_more_than_one_augments_or_extends_tag_8025", "Class declarations cannot have more than one `@augments` or `@extends` tag."),
+        Expected_0_type_arguments_provide_these_with_an_extends_tag: diag(8026, ts.DiagnosticCategory.Error, "Expected_0_type_arguments_provide_these_with_an_extends_tag_8026", "Expected {0} type arguments; provide these with an '@extends' tag."),
+        Expected_0_1_type_arguments_provide_these_with_an_extends_tag: diag(8027, ts.DiagnosticCategory.Error, "Expected_0_1_type_arguments_provide_these_with_an_extends_tag_8027", "Expected {0}-{1} type arguments; provide these with an '@extends' tag."),
+        JSDoc_may_only_appear_in_the_last_parameter_of_a_signature: diag(8028, ts.DiagnosticCategory.Error, "JSDoc_may_only_appear_in_the_last_parameter_of_a_signature_8028", "JSDoc '...' may only appear in the last parameter of a signature."),
+        JSDoc_param_tag_has_name_0_but_there_is_no_parameter_with_that_name_It_would_match_arguments_if_it_had_an_array_type: diag(8029, ts.DiagnosticCategory.Error, "JSDoc_param_tag_has_name_0_but_there_is_no_parameter_with_that_name_It_would_match_arguments_if_it_h_8029", "JSDoc '@param' tag has name '{0}', but there is no parameter with that name. It would match 'arguments' if it had an array type."),
+        The_type_of_a_function_declaration_must_match_the_function_s_signature: diag(8030, ts.DiagnosticCategory.Error, "The_type_of_a_function_declaration_must_match_the_function_s_signature_8030", "The type of a function declaration must match the function's signature."),
+        You_cannot_rename_a_module_via_a_global_import: diag(8031, ts.DiagnosticCategory.Error, "You_cannot_rename_a_module_via_a_global_import_8031", "You cannot rename a module via a global import."),
+        Qualified_name_0_is_not_allowed_without_a_leading_param_object_1: diag(8032, ts.DiagnosticCategory.Error, "Qualified_name_0_is_not_allowed_without_a_leading_param_object_1_8032", "Qualified name '{0}' is not allowed without a leading '@param {object} {1}'."),
+        Only_identifiers_Slashqualified_names_with_optional_type_arguments_are_currently_supported_in_a_class_extends_clause: diag(9002, ts.DiagnosticCategory.Error, "Only_identifiers_Slashqualified_names_with_optional_type_arguments_are_currently_supported_in_a_clas_9002", "Only identifiers/qualified-names with optional type arguments are currently supported in a class 'extends' clause."),
+        class_expressions_are_not_currently_supported: diag(9003, ts.DiagnosticCategory.Error, "class_expressions_are_not_currently_supported_9003", "'class' expressions are not currently supported."),
+        Language_service_is_disabled: diag(9004, ts.DiagnosticCategory.Error, "Language_service_is_disabled_9004", "Language service is disabled."),
+        Declaration_emit_for_this_file_requires_using_private_name_0_An_explicit_type_annotation_may_unblock_declaration_emit: diag(9005, ts.DiagnosticCategory.Error, "Declaration_emit_for_this_file_requires_using_private_name_0_An_explicit_type_annotation_may_unblock_9005", "Declaration emit for this file requires using private name '{0}'. An explicit type annotation may unblock declaration emit."),
+        Declaration_emit_for_this_file_requires_using_private_name_0_from_module_1_An_explicit_type_annotation_may_unblock_declaration_emit: diag(9006, ts.DiagnosticCategory.Error, "Declaration_emit_for_this_file_requires_using_private_name_0_from_module_1_An_explicit_type_annotati_9006", "Declaration emit for this file requires using private name '{0}' from module '{1}'. An explicit type annotation may unblock declaration emit."),
+        JSX_attributes_must_only_be_assigned_a_non_empty_expression: diag(17000, ts.DiagnosticCategory.Error, "JSX_attributes_must_only_be_assigned_a_non_empty_expression_17000", "JSX attributes must only be assigned a non-empty 'expression'."),
+        JSX_elements_cannot_have_multiple_attributes_with_the_same_name: diag(17001, ts.DiagnosticCategory.Error, "JSX_elements_cannot_have_multiple_attributes_with_the_same_name_17001", "JSX elements cannot have multiple attributes with the same name."),
+        Expected_corresponding_JSX_closing_tag_for_0: diag(17002, ts.DiagnosticCategory.Error, "Expected_corresponding_JSX_closing_tag_for_0_17002", "Expected corresponding JSX closing tag for '{0}'."),
+        JSX_attribute_expected: diag(17003, ts.DiagnosticCategory.Error, "JSX_attribute_expected_17003", "JSX attribute expected."),
+        Cannot_use_JSX_unless_the_jsx_flag_is_provided: diag(17004, ts.DiagnosticCategory.Error, "Cannot_use_JSX_unless_the_jsx_flag_is_provided_17004", "Cannot use JSX unless the '--jsx' flag is provided."),
+        A_constructor_cannot_contain_a_super_call_when_its_class_extends_null: diag(17005, ts.DiagnosticCategory.Error, "A_constructor_cannot_contain_a_super_call_when_its_class_extends_null_17005", "A constructor cannot contain a 'super' call when its class extends 'null'."),
+        An_unary_expression_with_the_0_operator_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses: diag(17006, ts.DiagnosticCategory.Error, "An_unary_expression_with_the_0_operator_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_ex_17006", "An unary expression with the '{0}' operator is not allowed in the left-hand side of an exponentiation expression. Consider enclosing the expression in parentheses."),
+        A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses: diag(17007, ts.DiagnosticCategory.Error, "A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Con_17007", "A type assertion expression is not allowed in the left-hand side of an exponentiation expression. Consider enclosing the expression in parentheses."),
+        JSX_element_0_has_no_corresponding_closing_tag: diag(17008, ts.DiagnosticCategory.Error, "JSX_element_0_has_no_corresponding_closing_tag_17008", "JSX element '{0}' has no corresponding closing tag."),
+        super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class: diag(17009, ts.DiagnosticCategory.Error, "super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class_17009", "'super' must be called before accessing 'this' in the constructor of a derived class."),
+        Unknown_type_acquisition_option_0: diag(17010, ts.DiagnosticCategory.Error, "Unknown_type_acquisition_option_0_17010", "Unknown type acquisition option '{0}'."),
+        super_must_be_called_before_accessing_a_property_of_super_in_the_constructor_of_a_derived_class: diag(17011, ts.DiagnosticCategory.Error, "super_must_be_called_before_accessing_a_property_of_super_in_the_constructor_of_a_derived_class_17011", "'super' must be called before accessing a property of 'super' in the constructor of a derived class."),
+        _0_is_not_a_valid_meta_property_for_keyword_1_Did_you_mean_2: diag(17012, ts.DiagnosticCategory.Error, "_0_is_not_a_valid_meta_property_for_keyword_1_Did_you_mean_2_17012", "'{0}' is not a valid meta-property for keyword '{1}'. Did you mean '{2}'?"),
+        Meta_property_0_is_only_allowed_in_the_body_of_a_function_declaration_function_expression_or_constructor: diag(17013, ts.DiagnosticCategory.Error, "Meta_property_0_is_only_allowed_in_the_body_of_a_function_declaration_function_expression_or_constru_17013", "Meta-property '{0}' is only allowed in the body of a function declaration, function expression, or constructor."),
+        JSX_fragment_has_no_corresponding_closing_tag: diag(17014, ts.DiagnosticCategory.Error, "JSX_fragment_has_no_corresponding_closing_tag_17014", "JSX fragment has no corresponding closing tag."),
+        Expected_corresponding_closing_tag_for_JSX_fragment: diag(17015, ts.DiagnosticCategory.Error, "Expected_corresponding_closing_tag_for_JSX_fragment_17015", "Expected corresponding closing tag for JSX fragment."),
+        JSX_fragment_is_not_supported_when_using_jsxFactory: diag(17016, ts.DiagnosticCategory.Error, "JSX_fragment_is_not_supported_when_using_jsxFactory_17016", "JSX fragment is not supported when using --jsxFactory"),
+        JSX_fragment_is_not_supported_when_using_an_inline_JSX_factory_pragma: diag(17017, ts.DiagnosticCategory.Error, "JSX_fragment_is_not_supported_when_using_an_inline_JSX_factory_pragma_17017", "JSX fragment is not supported when using an inline JSX factory pragma"),
+        Unknown_type_acquisition_option_0_Did_you_mean_1: diag(17018, ts.DiagnosticCategory.Error, "Unknown_type_acquisition_option_0_Did_you_mean_1_17018", "Unknown type acquisition option '{0}'. Did you mean '{1}'?"),
+        Circularity_detected_while_resolving_configuration_Colon_0: diag(18000, ts.DiagnosticCategory.Error, "Circularity_detected_while_resolving_configuration_Colon_0_18000", "Circularity detected while resolving configuration: {0}"),
+        A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not: diag(18001, ts.DiagnosticCategory.Error, "A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not_18001", "A path in an 'extends' option must be relative or rooted, but '{0}' is not."),
+        The_files_list_in_config_file_0_is_empty: diag(18002, ts.DiagnosticCategory.Error, "The_files_list_in_config_file_0_is_empty_18002", "The 'files' list in config file '{0}' is empty."),
+        No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2: diag(18003, ts.DiagnosticCategory.Error, "No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2_18003", "No inputs were found in config file '{0}'. Specified 'include' paths were '{1}' and 'exclude' paths were '{2}'."),
+        File_is_a_CommonJS_module_it_may_be_converted_to_an_ES6_module: diag(80001, ts.DiagnosticCategory.Suggestion, "File_is_a_CommonJS_module_it_may_be_converted_to_an_ES6_module_80001", "File is a CommonJS module; it may be converted to an ES6 module."),
+        This_constructor_function_may_be_converted_to_a_class_declaration: diag(80002, ts.DiagnosticCategory.Suggestion, "This_constructor_function_may_be_converted_to_a_class_declaration_80002", "This constructor function may be converted to a class declaration."),
+        Import_may_be_converted_to_a_default_import: diag(80003, ts.DiagnosticCategory.Suggestion, "Import_may_be_converted_to_a_default_import_80003", "Import may be converted to a default import."),
+        JSDoc_types_may_be_moved_to_TypeScript_types: diag(80004, ts.DiagnosticCategory.Suggestion, "JSDoc_types_may_be_moved_to_TypeScript_types_80004", "JSDoc types may be moved to TypeScript types."),
+        require_call_may_be_converted_to_an_import: diag(80005, ts.DiagnosticCategory.Suggestion, "require_call_may_be_converted_to_an_import_80005", "'require' call may be converted to an import."),
+        This_may_be_converted_to_an_async_function: diag(80006, ts.DiagnosticCategory.Suggestion, "This_may_be_converted_to_an_async_function_80006", "This may be converted to an async function."),
+        await_has_no_effect_on_the_type_of_this_expression: diag(80007, ts.DiagnosticCategory.Suggestion, "await_has_no_effect_on_the_type_of_this_expression_80007", "'await' has no effect on the type of this expression."),
+        Numeric_literals_with_absolute_values_equal_to_2_53_or_greater_are_too_large_to_be_represented_accurately_as_integers: diag(80008, ts.DiagnosticCategory.Suggestion, "Numeric_literals_with_absolute_values_equal_to_2_53_or_greater_are_too_large_to_be_represented_accur_80008", "Numeric literals with absolute values equal to 2^53 or greater are too large to be represented accurately as integers."),
+        Add_missing_super_call: diag(90001, ts.DiagnosticCategory.Message, "Add_missing_super_call_90001", "Add missing 'super()' call"),
+        Make_super_call_the_first_statement_in_the_constructor: diag(90002, ts.DiagnosticCategory.Message, "Make_super_call_the_first_statement_in_the_constructor_90002", "Make 'super()' call the first statement in the constructor"),
+        Change_extends_to_implements: diag(90003, ts.DiagnosticCategory.Message, "Change_extends_to_implements_90003", "Change 'extends' to 'implements'"),
+        Remove_unused_declaration_for_Colon_0: diag(90004, ts.DiagnosticCategory.Message, "Remove_unused_declaration_for_Colon_0_90004", "Remove unused declaration for: '{0}'"),
+        Remove_import_from_0: diag(90005, ts.DiagnosticCategory.Message, "Remove_import_from_0_90005", "Remove import from '{0}'"),
+        Implement_interface_0: diag(90006, ts.DiagnosticCategory.Message, "Implement_interface_0_90006", "Implement interface '{0}'"),
+        Implement_inherited_abstract_class: diag(90007, ts.DiagnosticCategory.Message, "Implement_inherited_abstract_class_90007", "Implement inherited abstract class"),
+        Add_0_to_unresolved_variable: diag(90008, ts.DiagnosticCategory.Message, "Add_0_to_unresolved_variable_90008", "Add '{0}.' to unresolved variable"),
+        Remove_destructuring: diag(90009, ts.DiagnosticCategory.Message, "Remove_destructuring_90009", "Remove destructuring"),
+        Remove_variable_statement: diag(90010, ts.DiagnosticCategory.Message, "Remove_variable_statement_90010", "Remove variable statement"),
+        Remove_template_tag: diag(90011, ts.DiagnosticCategory.Message, "Remove_template_tag_90011", "Remove template tag"),
+        Remove_type_parameters: diag(90012, ts.DiagnosticCategory.Message, "Remove_type_parameters_90012", "Remove type parameters"),
+        Import_0_from_module_1: diag(90013, ts.DiagnosticCategory.Message, "Import_0_from_module_1_90013", "Import '{0}' from module \"{1}\""),
+        Change_0_to_1: diag(90014, ts.DiagnosticCategory.Message, "Change_0_to_1_90014", "Change '{0}' to '{1}'"),
+        Add_0_to_existing_import_declaration_from_1: diag(90015, ts.DiagnosticCategory.Message, "Add_0_to_existing_import_declaration_from_1_90015", "Add '{0}' to existing import declaration from \"{1}\""),
+        Declare_property_0: diag(90016, ts.DiagnosticCategory.Message, "Declare_property_0_90016", "Declare property '{0}'"),
+        Add_index_signature_for_property_0: diag(90017, ts.DiagnosticCategory.Message, "Add_index_signature_for_property_0_90017", "Add index signature for property '{0}'"),
+        Disable_checking_for_this_file: diag(90018, ts.DiagnosticCategory.Message, "Disable_checking_for_this_file_90018", "Disable checking for this file"),
+        Ignore_this_error_message: diag(90019, ts.DiagnosticCategory.Message, "Ignore_this_error_message_90019", "Ignore this error message"),
+        Initialize_property_0_in_the_constructor: diag(90020, ts.DiagnosticCategory.Message, "Initialize_property_0_in_the_constructor_90020", "Initialize property '{0}' in the constructor"),
+        Initialize_static_property_0: diag(90021, ts.DiagnosticCategory.Message, "Initialize_static_property_0_90021", "Initialize static property '{0}'"),
+        Change_spelling_to_0: diag(90022, ts.DiagnosticCategory.Message, "Change_spelling_to_0_90022", "Change spelling to '{0}'"),
+        Declare_method_0: diag(90023, ts.DiagnosticCategory.Message, "Declare_method_0_90023", "Declare method '{0}'"),
+        Declare_static_method_0: diag(90024, ts.DiagnosticCategory.Message, "Declare_static_method_0_90024", "Declare static method '{0}'"),
+        Prefix_0_with_an_underscore: diag(90025, ts.DiagnosticCategory.Message, "Prefix_0_with_an_underscore_90025", "Prefix '{0}' with an underscore"),
+        Rewrite_as_the_indexed_access_type_0: diag(90026, ts.DiagnosticCategory.Message, "Rewrite_as_the_indexed_access_type_0_90026", "Rewrite as the indexed access type '{0}'"),
+        Declare_static_property_0: diag(90027, ts.DiagnosticCategory.Message, "Declare_static_property_0_90027", "Declare static property '{0}'"),
+        Call_decorator_expression: diag(90028, ts.DiagnosticCategory.Message, "Call_decorator_expression_90028", "Call decorator expression"),
+        Add_async_modifier_to_containing_function: diag(90029, ts.DiagnosticCategory.Message, "Add_async_modifier_to_containing_function_90029", "Add async modifier to containing function"),
+        Replace_infer_0_with_unknown: diag(90030, ts.DiagnosticCategory.Message, "Replace_infer_0_with_unknown_90030", "Replace 'infer {0}' with 'unknown'"),
+        Replace_all_unused_infer_with_unknown: diag(90031, ts.DiagnosticCategory.Message, "Replace_all_unused_infer_with_unknown_90031", "Replace all unused 'infer' with 'unknown'"),
+        Import_default_0_from_module_1: diag(90032, ts.DiagnosticCategory.Message, "Import_default_0_from_module_1_90032", "Import default '{0}' from module \"{1}\""),
+        Add_default_import_0_to_existing_import_declaration_from_1: diag(90033, ts.DiagnosticCategory.Message, "Add_default_import_0_to_existing_import_declaration_from_1_90033", "Add default import '{0}' to existing import declaration from \"{1}\""),
+        Add_parameter_name: diag(90034, ts.DiagnosticCategory.Message, "Add_parameter_name_90034", "Add parameter name"),
+        Declare_private_property_0: diag(90035, ts.DiagnosticCategory.Message, "Declare_private_property_0_90035", "Declare private property '{0}'"),
+        Declare_a_private_field_named_0: diag(90053, ts.DiagnosticCategory.Message, "Declare_a_private_field_named_0_90053", "Declare a private field named '{0}'."),
+        Convert_function_to_an_ES2015_class: diag(95001, ts.DiagnosticCategory.Message, "Convert_function_to_an_ES2015_class_95001", "Convert function to an ES2015 class"),
+        Convert_function_0_to_class: diag(95002, ts.DiagnosticCategory.Message, "Convert_function_0_to_class_95002", "Convert function '{0}' to class"),
+        Extract_to_0_in_1: diag(95004, ts.DiagnosticCategory.Message, "Extract_to_0_in_1_95004", "Extract to {0} in {1}"),
+        Extract_function: diag(95005, ts.DiagnosticCategory.Message, "Extract_function_95005", "Extract function"),
+        Extract_constant: diag(95006, ts.DiagnosticCategory.Message, "Extract_constant_95006", "Extract constant"),
+        Extract_to_0_in_enclosing_scope: diag(95007, ts.DiagnosticCategory.Message, "Extract_to_0_in_enclosing_scope_95007", "Extract to {0} in enclosing scope"),
+        Extract_to_0_in_1_scope: diag(95008, ts.DiagnosticCategory.Message, "Extract_to_0_in_1_scope_95008", "Extract to {0} in {1} scope"),
+        Annotate_with_type_from_JSDoc: diag(95009, ts.DiagnosticCategory.Message, "Annotate_with_type_from_JSDoc_95009", "Annotate with type from JSDoc"),
+        Annotate_with_types_from_JSDoc: diag(95010, ts.DiagnosticCategory.Message, "Annotate_with_types_from_JSDoc_95010", "Annotate with types from JSDoc"),
+        Infer_type_of_0_from_usage: diag(95011, ts.DiagnosticCategory.Message, "Infer_type_of_0_from_usage_95011", "Infer type of '{0}' from usage"),
+        Infer_parameter_types_from_usage: diag(95012, ts.DiagnosticCategory.Message, "Infer_parameter_types_from_usage_95012", "Infer parameter types from usage"),
+        Convert_to_default_import: diag(95013, ts.DiagnosticCategory.Message, "Convert_to_default_import_95013", "Convert to default import"),
+        Install_0: diag(95014, ts.DiagnosticCategory.Message, "Install_0_95014", "Install '{0}'"),
+        Replace_import_with_0: diag(95015, ts.DiagnosticCategory.Message, "Replace_import_with_0_95015", "Replace import with '{0}'."),
+        Use_synthetic_default_member: diag(95016, ts.DiagnosticCategory.Message, "Use_synthetic_default_member_95016", "Use synthetic 'default' member."),
+        Convert_to_ES6_module: diag(95017, ts.DiagnosticCategory.Message, "Convert_to_ES6_module_95017", "Convert to ES6 module"),
+        Add_undefined_type_to_property_0: diag(95018, ts.DiagnosticCategory.Message, "Add_undefined_type_to_property_0_95018", "Add 'undefined' type to property '{0}'"),
+        Add_initializer_to_property_0: diag(95019, ts.DiagnosticCategory.Message, "Add_initializer_to_property_0_95019", "Add initializer to property '{0}'"),
+        Add_definite_assignment_assertion_to_property_0: diag(95020, ts.DiagnosticCategory.Message, "Add_definite_assignment_assertion_to_property_0_95020", "Add definite assignment assertion to property '{0}'"),
+        Add_all_missing_members: diag(95022, ts.DiagnosticCategory.Message, "Add_all_missing_members_95022", "Add all missing members"),
+        Infer_all_types_from_usage: diag(95023, ts.DiagnosticCategory.Message, "Infer_all_types_from_usage_95023", "Infer all types from usage"),
+        Delete_all_unused_declarations: diag(95024, ts.DiagnosticCategory.Message, "Delete_all_unused_declarations_95024", "Delete all unused declarations"),
+        Prefix_all_unused_declarations_with_where_possible: diag(95025, ts.DiagnosticCategory.Message, "Prefix_all_unused_declarations_with_where_possible_95025", "Prefix all unused declarations with '_' where possible"),
+        Fix_all_detected_spelling_errors: diag(95026, ts.DiagnosticCategory.Message, "Fix_all_detected_spelling_errors_95026", "Fix all detected spelling errors"),
+        Add_initializers_to_all_uninitialized_properties: diag(95027, ts.DiagnosticCategory.Message, "Add_initializers_to_all_uninitialized_properties_95027", "Add initializers to all uninitialized properties"),
+        Add_definite_assignment_assertions_to_all_uninitialized_properties: diag(95028, ts.DiagnosticCategory.Message, "Add_definite_assignment_assertions_to_all_uninitialized_properties_95028", "Add definite assignment assertions to all uninitialized properties"),
+        Add_undefined_type_to_all_uninitialized_properties: diag(95029, ts.DiagnosticCategory.Message, "Add_undefined_type_to_all_uninitialized_properties_95029", "Add undefined type to all uninitialized properties"),
+        Change_all_jsdoc_style_types_to_TypeScript: diag(95030, ts.DiagnosticCategory.Message, "Change_all_jsdoc_style_types_to_TypeScript_95030", "Change all jsdoc-style types to TypeScript"),
+        Change_all_jsdoc_style_types_to_TypeScript_and_add_undefined_to_nullable_types: diag(95031, ts.DiagnosticCategory.Message, "Change_all_jsdoc_style_types_to_TypeScript_and_add_undefined_to_nullable_types_95031", "Change all jsdoc-style types to TypeScript (and add '| undefined' to nullable types)"),
+        Implement_all_unimplemented_interfaces: diag(95032, ts.DiagnosticCategory.Message, "Implement_all_unimplemented_interfaces_95032", "Implement all unimplemented interfaces"),
+        Install_all_missing_types_packages: diag(95033, ts.DiagnosticCategory.Message, "Install_all_missing_types_packages_95033", "Install all missing types packages"),
+        Rewrite_all_as_indexed_access_types: diag(95034, ts.DiagnosticCategory.Message, "Rewrite_all_as_indexed_access_types_95034", "Rewrite all as indexed access types"),
+        Convert_all_to_default_imports: diag(95035, ts.DiagnosticCategory.Message, "Convert_all_to_default_imports_95035", "Convert all to default imports"),
+        Make_all_super_calls_the_first_statement_in_their_constructor: diag(95036, ts.DiagnosticCategory.Message, "Make_all_super_calls_the_first_statement_in_their_constructor_95036", "Make all 'super()' calls the first statement in their constructor"),
+        Add_qualifier_to_all_unresolved_variables_matching_a_member_name: diag(95037, ts.DiagnosticCategory.Message, "Add_qualifier_to_all_unresolved_variables_matching_a_member_name_95037", "Add qualifier to all unresolved variables matching a member name"),
+        Change_all_extended_interfaces_to_implements: diag(95038, ts.DiagnosticCategory.Message, "Change_all_extended_interfaces_to_implements_95038", "Change all extended interfaces to 'implements'"),
+        Add_all_missing_super_calls: diag(95039, ts.DiagnosticCategory.Message, "Add_all_missing_super_calls_95039", "Add all missing super calls"),
+        Implement_all_inherited_abstract_classes: diag(95040, ts.DiagnosticCategory.Message, "Implement_all_inherited_abstract_classes_95040", "Implement all inherited abstract classes"),
+        Add_all_missing_async_modifiers: diag(95041, ts.DiagnosticCategory.Message, "Add_all_missing_async_modifiers_95041", "Add all missing 'async' modifiers"),
+        Add_ts_ignore_to_all_error_messages: diag(95042, ts.DiagnosticCategory.Message, "Add_ts_ignore_to_all_error_messages_95042", "Add '@ts-ignore' to all error messages"),
+        Annotate_everything_with_types_from_JSDoc: diag(95043, ts.DiagnosticCategory.Message, "Annotate_everything_with_types_from_JSDoc_95043", "Annotate everything with types from JSDoc"),
+        Add_to_all_uncalled_decorators: diag(95044, ts.DiagnosticCategory.Message, "Add_to_all_uncalled_decorators_95044", "Add '()' to all uncalled decorators"),
+        Convert_all_constructor_functions_to_classes: diag(95045, ts.DiagnosticCategory.Message, "Convert_all_constructor_functions_to_classes_95045", "Convert all constructor functions to classes"),
+        Generate_get_and_set_accessors: diag(95046, ts.DiagnosticCategory.Message, "Generate_get_and_set_accessors_95046", "Generate 'get' and 'set' accessors"),
+        Convert_require_to_import: diag(95047, ts.DiagnosticCategory.Message, "Convert_require_to_import_95047", "Convert 'require' to 'import'"),
+        Convert_all_require_to_import: diag(95048, ts.DiagnosticCategory.Message, "Convert_all_require_to_import_95048", "Convert all 'require' to 'import'"),
+        Move_to_a_new_file: diag(95049, ts.DiagnosticCategory.Message, "Move_to_a_new_file_95049", "Move to a new file"),
+        Remove_unreachable_code: diag(95050, ts.DiagnosticCategory.Message, "Remove_unreachable_code_95050", "Remove unreachable code"),
+        Remove_all_unreachable_code: diag(95051, ts.DiagnosticCategory.Message, "Remove_all_unreachable_code_95051", "Remove all unreachable code"),
+        Add_missing_typeof: diag(95052, ts.DiagnosticCategory.Message, "Add_missing_typeof_95052", "Add missing 'typeof'"),
+        Remove_unused_label: diag(95053, ts.DiagnosticCategory.Message, "Remove_unused_label_95053", "Remove unused label"),
+        Remove_all_unused_labels: diag(95054, ts.DiagnosticCategory.Message, "Remove_all_unused_labels_95054", "Remove all unused labels"),
+        Convert_0_to_mapped_object_type: diag(95055, ts.DiagnosticCategory.Message, "Convert_0_to_mapped_object_type_95055", "Convert '{0}' to mapped object type"),
+        Convert_namespace_import_to_named_imports: diag(95056, ts.DiagnosticCategory.Message, "Convert_namespace_import_to_named_imports_95056", "Convert namespace import to named imports"),
+        Convert_named_imports_to_namespace_import: diag(95057, ts.DiagnosticCategory.Message, "Convert_named_imports_to_namespace_import_95057", "Convert named imports to namespace import"),
+        Add_or_remove_braces_in_an_arrow_function: diag(95058, ts.DiagnosticCategory.Message, "Add_or_remove_braces_in_an_arrow_function_95058", "Add or remove braces in an arrow function"),
+        Add_braces_to_arrow_function: diag(95059, ts.DiagnosticCategory.Message, "Add_braces_to_arrow_function_95059", "Add braces to arrow function"),
+        Remove_braces_from_arrow_function: diag(95060, ts.DiagnosticCategory.Message, "Remove_braces_from_arrow_function_95060", "Remove braces from arrow function"),
+        Convert_default_export_to_named_export: diag(95061, ts.DiagnosticCategory.Message, "Convert_default_export_to_named_export_95061", "Convert default export to named export"),
+        Convert_named_export_to_default_export: diag(95062, ts.DiagnosticCategory.Message, "Convert_named_export_to_default_export_95062", "Convert named export to default export"),
+        Add_missing_enum_member_0: diag(95063, ts.DiagnosticCategory.Message, "Add_missing_enum_member_0_95063", "Add missing enum member '{0}'"),
+        Add_all_missing_imports: diag(95064, ts.DiagnosticCategory.Message, "Add_all_missing_imports_95064", "Add all missing imports"),
+        Convert_to_async_function: diag(95065, ts.DiagnosticCategory.Message, "Convert_to_async_function_95065", "Convert to async function"),
+        Convert_all_to_async_functions: diag(95066, ts.DiagnosticCategory.Message, "Convert_all_to_async_functions_95066", "Convert all to async functions"),
+        Add_missing_call_parentheses: diag(95067, ts.DiagnosticCategory.Message, "Add_missing_call_parentheses_95067", "Add missing call parentheses"),
+        Add_all_missing_call_parentheses: diag(95068, ts.DiagnosticCategory.Message, "Add_all_missing_call_parentheses_95068", "Add all missing call parentheses"),
+        Add_unknown_conversion_for_non_overlapping_types: diag(95069, ts.DiagnosticCategory.Message, "Add_unknown_conversion_for_non_overlapping_types_95069", "Add 'unknown' conversion for non-overlapping types"),
+        Add_unknown_to_all_conversions_of_non_overlapping_types: diag(95070, ts.DiagnosticCategory.Message, "Add_unknown_to_all_conversions_of_non_overlapping_types_95070", "Add 'unknown' to all conversions of non-overlapping types"),
+        Add_missing_new_operator_to_call: diag(95071, ts.DiagnosticCategory.Message, "Add_missing_new_operator_to_call_95071", "Add missing 'new' operator to call"),
+        Add_missing_new_operator_to_all_calls: diag(95072, ts.DiagnosticCategory.Message, "Add_missing_new_operator_to_all_calls_95072", "Add missing 'new' operator to all calls"),
+        Add_names_to_all_parameters_without_names: diag(95073, ts.DiagnosticCategory.Message, "Add_names_to_all_parameters_without_names_95073", "Add names to all parameters without names"),
+        Enable_the_experimentalDecorators_option_in_your_configuration_file: diag(95074, ts.DiagnosticCategory.Message, "Enable_the_experimentalDecorators_option_in_your_configuration_file_95074", "Enable the 'experimentalDecorators' option in your configuration file"),
+        Convert_parameters_to_destructured_object: diag(95075, ts.DiagnosticCategory.Message, "Convert_parameters_to_destructured_object_95075", "Convert parameters to destructured object"),
+        Allow_accessing_UMD_globals_from_modules: diag(95076, ts.DiagnosticCategory.Message, "Allow_accessing_UMD_globals_from_modules_95076", "Allow accessing UMD globals from modules."),
+        Extract_type: diag(95077, ts.DiagnosticCategory.Message, "Extract_type_95077", "Extract type"),
+        Extract_to_type_alias: diag(95078, ts.DiagnosticCategory.Message, "Extract_to_type_alias_95078", "Extract to type alias"),
+        Extract_to_typedef: diag(95079, ts.DiagnosticCategory.Message, "Extract_to_typedef_95079", "Extract to typedef"),
+        Infer_this_type_of_0_from_usage: diag(95080, ts.DiagnosticCategory.Message, "Infer_this_type_of_0_from_usage_95080", "Infer 'this' type of '{0}' from usage"),
+        Add_const_to_unresolved_variable: diag(95081, ts.DiagnosticCategory.Message, "Add_const_to_unresolved_variable_95081", "Add 'const' to unresolved variable"),
+        Add_const_to_all_unresolved_variables: diag(95082, ts.DiagnosticCategory.Message, "Add_const_to_all_unresolved_variables_95082", "Add 'const' to all unresolved variables"),
+        Add_await: diag(95083, ts.DiagnosticCategory.Message, "Add_await_95083", "Add 'await'"),
+        Add_await_to_initializer_for_0: diag(95084, ts.DiagnosticCategory.Message, "Add_await_to_initializer_for_0_95084", "Add 'await' to initializer for '{0}'"),
+        Fix_all_expressions_possibly_missing_await: diag(95085, ts.DiagnosticCategory.Message, "Fix_all_expressions_possibly_missing_await_95085", "Fix all expressions possibly missing 'await'"),
+        Remove_unnecessary_await: diag(95086, ts.DiagnosticCategory.Message, "Remove_unnecessary_await_95086", "Remove unnecessary 'await'"),
+        Remove_all_unnecessary_uses_of_await: diag(95087, ts.DiagnosticCategory.Message, "Remove_all_unnecessary_uses_of_await_95087", "Remove all unnecessary uses of 'await'"),
+        Enable_the_jsx_flag_in_your_configuration_file: diag(95088, ts.DiagnosticCategory.Message, "Enable_the_jsx_flag_in_your_configuration_file_95088", "Enable the '--jsx' flag in your configuration file"),
+        Add_await_to_initializers: diag(95089, ts.DiagnosticCategory.Message, "Add_await_to_initializers_95089", "Add 'await' to initializers"),
+        Extract_to_interface: diag(95090, ts.DiagnosticCategory.Message, "Extract_to_interface_95090", "Extract to interface"),
+        Convert_to_a_bigint_numeric_literal: diag(95091, ts.DiagnosticCategory.Message, "Convert_to_a_bigint_numeric_literal_95091", "Convert to a bigint numeric literal"),
+        Convert_all_to_bigint_numeric_literals: diag(95092, ts.DiagnosticCategory.Message, "Convert_all_to_bigint_numeric_literals_95092", "Convert all to bigint numeric literals"),
+        Convert_const_to_let: diag(95093, ts.DiagnosticCategory.Message, "Convert_const_to_let_95093", "Convert 'const' to 'let'"),
+        Prefix_with_declare: diag(95094, ts.DiagnosticCategory.Message, "Prefix_with_declare_95094", "Prefix with 'declare'"),
+        Prefix_all_incorrect_property_declarations_with_declare: diag(95095, ts.DiagnosticCategory.Message, "Prefix_all_incorrect_property_declarations_with_declare_95095", "Prefix all incorrect property declarations with 'declare'"),
+        Convert_to_template_string: diag(95096, ts.DiagnosticCategory.Message, "Convert_to_template_string_95096", "Convert to template string"),
+        Add_export_to_make_this_file_into_a_module: diag(95097, ts.DiagnosticCategory.Message, "Add_export_to_make_this_file_into_a_module_95097", "Add 'export {}' to make this file into a module"),
+        Set_the_target_option_in_your_configuration_file_to_0: diag(95098, ts.DiagnosticCategory.Message, "Set_the_target_option_in_your_configuration_file_to_0_95098", "Set the 'target' option in your configuration file to '{0}'"),
+        Set_the_module_option_in_your_configuration_file_to_0: diag(95099, ts.DiagnosticCategory.Message, "Set_the_module_option_in_your_configuration_file_to_0_95099", "Set the 'module' option in your configuration file to '{0}'"),
+        Convert_invalid_character_to_its_html_entity_code: diag(95100, ts.DiagnosticCategory.Message, "Convert_invalid_character_to_its_html_entity_code_95100", "Convert invalid character to its html entity code"),
+        Convert_all_invalid_characters_to_HTML_entity_code: diag(95101, ts.DiagnosticCategory.Message, "Convert_all_invalid_characters_to_HTML_entity_code_95101", "Convert all invalid characters to HTML entity code"),
+        Add_class_tag: diag(95102, ts.DiagnosticCategory.Message, "Add_class_tag_95102", "Add '@class' tag"),
+        Add_this_tag: diag(95103, ts.DiagnosticCategory.Message, "Add_this_tag_95103", "Add '@this' tag"),
+        Add_this_parameter: diag(95104, ts.DiagnosticCategory.Message, "Add_this_parameter_95104", "Add 'this' parameter."),
+        Convert_function_expression_0_to_arrow_function: diag(95105, ts.DiagnosticCategory.Message, "Convert_function_expression_0_to_arrow_function_95105", "Convert function expression '{0}' to arrow function"),
+        Convert_function_declaration_0_to_arrow_function: diag(95106, ts.DiagnosticCategory.Message, "Convert_function_declaration_0_to_arrow_function_95106", "Convert function declaration '{0}' to arrow function"),
+        Fix_all_implicit_this_errors: diag(95107, ts.DiagnosticCategory.Message, "Fix_all_implicit_this_errors_95107", "Fix all implicit-'this' errors"),
+        Wrap_invalid_character_in_an_expression_container: diag(95108, ts.DiagnosticCategory.Message, "Wrap_invalid_character_in_an_expression_container_95108", "Wrap invalid character in an expression container"),
+        Wrap_all_invalid_characters_in_an_expression_container: diag(95109, ts.DiagnosticCategory.Message, "Wrap_all_invalid_characters_in_an_expression_container_95109", "Wrap all invalid characters in an expression container"),
+        Visit_https_Colon_Slash_Slashaka_ms_Slashtsconfig_json_to_read_more_about_this_file: diag(95110, ts.DiagnosticCategory.Message, "Visit_https_Colon_Slash_Slashaka_ms_Slashtsconfig_json_to_read_more_about_this_file_95110", "Visit https://aka.ms/tsconfig.json to read more about this file"),
+        Add_a_return_statement: diag(95111, ts.DiagnosticCategory.Message, "Add_a_return_statement_95111", "Add a return statement"),
+        Remove_block_body_braces: diag(95112, ts.DiagnosticCategory.Message, "Remove_block_body_braces_95112", "Remove block body braces"),
+        Wrap_the_following_body_with_parentheses_which_should_be_an_object_literal: diag(95113, ts.DiagnosticCategory.Message, "Wrap_the_following_body_with_parentheses_which_should_be_an_object_literal_95113", "Wrap the following body with parentheses which should be an object literal"),
+        Add_all_missing_return_statement: diag(95114, ts.DiagnosticCategory.Message, "Add_all_missing_return_statement_95114", "Add all missing return statement"),
+        Remove_all_incorrect_body_block_braces: diag(95115, ts.DiagnosticCategory.Message, "Remove_all_incorrect_body_block_braces_95115", "Remove all incorrect body block braces"),
+        Wrap_all_object_literal_with_parentheses: diag(95116, ts.DiagnosticCategory.Message, "Wrap_all_object_literal_with_parentheses_95116", "Wrap all object literal with parentheses"),
+        No_value_exists_in_scope_for_the_shorthand_property_0_Either_declare_one_or_provide_an_initializer: diag(18004, ts.DiagnosticCategory.Error, "No_value_exists_in_scope_for_the_shorthand_property_0_Either_declare_one_or_provide_an_initializer_18004", "No value exists in scope for the shorthand property '{0}'. Either declare one or provide an initializer."),
+        Classes_may_not_have_a_field_named_constructor: diag(18006, ts.DiagnosticCategory.Error, "Classes_may_not_have_a_field_named_constructor_18006", "Classes may not have a field named 'constructor'."),
+        JSX_expressions_may_not_use_the_comma_operator_Did_you_mean_to_write_an_array: diag(18007, ts.DiagnosticCategory.Error, "JSX_expressions_may_not_use_the_comma_operator_Did_you_mean_to_write_an_array_18007", "JSX expressions may not use the comma operator. Did you mean to write an array?"),
+        Private_identifiers_cannot_be_used_as_parameters: diag(18009, ts.DiagnosticCategory.Error, "Private_identifiers_cannot_be_used_as_parameters_18009", "Private identifiers cannot be used as parameters"),
+        An_accessibility_modifier_cannot_be_used_with_a_private_identifier: diag(18010, ts.DiagnosticCategory.Error, "An_accessibility_modifier_cannot_be_used_with_a_private_identifier_18010", "An accessibility modifier cannot be used with a private identifier."),
+        The_operand_of_a_delete_operator_cannot_be_a_private_identifier: diag(18011, ts.DiagnosticCategory.Error, "The_operand_of_a_delete_operator_cannot_be_a_private_identifier_18011", "The operand of a 'delete' operator cannot be a private identifier."),
+        constructor_is_a_reserved_word: diag(18012, ts.DiagnosticCategory.Error, "constructor_is_a_reserved_word_18012", "'#constructor' is a reserved word."),
+        Property_0_is_not_accessible_outside_class_1_because_it_has_a_private_identifier: diag(18013, ts.DiagnosticCategory.Error, "Property_0_is_not_accessible_outside_class_1_because_it_has_a_private_identifier_18013", "Property '{0}' is not accessible outside class '{1}' because it has a private identifier."),
+        The_property_0_cannot_be_accessed_on_type_1_within_this_class_because_it_is_shadowed_by_another_private_identifier_with_the_same_spelling: diag(18014, ts.DiagnosticCategory.Error, "The_property_0_cannot_be_accessed_on_type_1_within_this_class_because_it_is_shadowed_by_another_priv_18014", "The property '{0}' cannot be accessed on type '{1}' within this class because it is shadowed by another private identifier with the same spelling."),
+        Property_0_in_type_1_refers_to_a_different_member_that_cannot_be_accessed_from_within_type_2: diag(18015, ts.DiagnosticCategory.Error, "Property_0_in_type_1_refers_to_a_different_member_that_cannot_be_accessed_from_within_type_2_18015", "Property '{0}' in type '{1}' refers to a different member that cannot be accessed from within type '{2}'."),
+        Private_identifiers_are_not_allowed_outside_class_bodies: diag(18016, ts.DiagnosticCategory.Error, "Private_identifiers_are_not_allowed_outside_class_bodies_18016", "Private identifiers are not allowed outside class bodies."),
+        The_shadowing_declaration_of_0_is_defined_here: diag(18017, ts.DiagnosticCategory.Error, "The_shadowing_declaration_of_0_is_defined_here_18017", "The shadowing declaration of '{0}' is defined here"),
+        The_declaration_of_0_that_you_probably_intended_to_use_is_defined_here: diag(18018, ts.DiagnosticCategory.Error, "The_declaration_of_0_that_you_probably_intended_to_use_is_defined_here_18018", "The declaration of '{0}' that you probably intended to use is defined here"),
+        _0_modifier_cannot_be_used_with_a_private_identifier: diag(18019, ts.DiagnosticCategory.Error, "_0_modifier_cannot_be_used_with_a_private_identifier_18019", "'{0}' modifier cannot be used with a private identifier"),
+        A_method_cannot_be_named_with_a_private_identifier: diag(18022, ts.DiagnosticCategory.Error, "A_method_cannot_be_named_with_a_private_identifier_18022", "A method cannot be named with a private identifier."),
+        An_accessor_cannot_be_named_with_a_private_identifier: diag(18023, ts.DiagnosticCategory.Error, "An_accessor_cannot_be_named_with_a_private_identifier_18023", "An accessor cannot be named with a private identifier."),
+        An_enum_member_cannot_be_named_with_a_private_identifier: diag(18024, ts.DiagnosticCategory.Error, "An_enum_member_cannot_be_named_with_a_private_identifier_18024", "An enum member cannot be named with a private identifier."),
+        can_only_be_used_at_the_start_of_a_file: diag(18026, ts.DiagnosticCategory.Error, "can_only_be_used_at_the_start_of_a_file_18026", "'#!' can only be used at the start of a file."),
+        Compiler_reserves_name_0_when_emitting_private_identifier_downlevel: diag(18027, ts.DiagnosticCategory.Error, "Compiler_reserves_name_0_when_emitting_private_identifier_downlevel_18027", "Compiler reserves name '{0}' when emitting private identifier downlevel."),
+        Private_identifiers_are_only_available_when_targeting_ECMAScript_2015_and_higher: diag(18028, ts.DiagnosticCategory.Error, "Private_identifiers_are_only_available_when_targeting_ECMAScript_2015_and_higher_18028", "Private identifiers are only available when targeting ECMAScript 2015 and higher."),
+        Private_identifiers_are_not_allowed_in_variable_declarations: diag(18029, ts.DiagnosticCategory.Error, "Private_identifiers_are_not_allowed_in_variable_declarations_18029", "Private identifiers are not allowed in variable declarations."),
+        An_optional_chain_cannot_contain_private_identifiers: diag(18030, ts.DiagnosticCategory.Error, "An_optional_chain_cannot_contain_private_identifiers_18030", "An optional chain cannot contain private identifiers."),
+        The_intersection_0_was_reduced_to_never_because_property_1_has_conflicting_types_in_some_constituents: diag(18031, ts.DiagnosticCategory.Error, "The_intersection_0_was_reduced_to_never_because_property_1_has_conflicting_types_in_some_constituent_18031", "The intersection '{0}' was reduced to 'never' because property '{1}' has conflicting types in some constituents."),
+        The_intersection_0_was_reduced_to_never_because_property_1_exists_in_multiple_constituents_and_is_private_in_some: diag(18032, ts.DiagnosticCategory.Error, "The_intersection_0_was_reduced_to_never_because_property_1_exists_in_multiple_constituents_and_is_pr_18032", "The intersection '{0}' was reduced to 'never' because property '{1}' exists in multiple constituents and is private in some."),
+        Only_numeric_enums_can_have_computed_members_but_this_expression_has_type_0_If_you_do_not_need_exhaustiveness_checks_consider_using_an_object_literal_instead: diag(18033, ts.DiagnosticCategory.Error, "Only_numeric_enums_can_have_computed_members_but_this_expression_has_type_0_If_you_do_not_need_exhau_18033", "Only numeric enums can have computed members, but this expression has type '{0}'. If you do not need exhaustiveness checks, consider using an object literal instead."),
+    };
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var _a;
+    function tokenIsIdentifierOrKeyword(token) {
+        return token >= 75;
+    }
+    ts.tokenIsIdentifierOrKeyword = tokenIsIdentifierOrKeyword;
+    function tokenIsIdentifierOrKeywordOrGreaterThan(token) {
+        return token === 31 || tokenIsIdentifierOrKeyword(token);
+    }
+    ts.tokenIsIdentifierOrKeywordOrGreaterThan = tokenIsIdentifierOrKeywordOrGreaterThan;
+    var textToKeywordObj = (_a = {
+            abstract: 122,
+            any: 125,
+            as: 123,
+            asserts: 124,
+            bigint: 151,
+            boolean: 128,
+            break: 77,
+            case: 78,
+            catch: 79,
+            class: 80,
+            continue: 82,
+            const: 81
+        },
+        _a["" + "constructor"] = 129,
+        _a.debugger = 83,
+        _a.declare = 130,
+        _a.default = 84,
+        _a.delete = 85,
+        _a.do = 86,
+        _a.else = 87,
+        _a.enum = 88,
+        _a.export = 89,
+        _a.extends = 90,
+        _a.false = 91,
+        _a.finally = 92,
+        _a.for = 93,
+        _a.from = 149,
+        _a.function = 94,
+        _a.get = 131,
+        _a.if = 95,
+        _a.implements = 113,
+        _a.import = 96,
+        _a.in = 97,
+        _a.infer = 132,
+        _a.instanceof = 98,
+        _a.interface = 114,
+        _a.is = 133,
+        _a.keyof = 134,
+        _a.let = 115,
+        _a.module = 135,
+        _a.namespace = 136,
+        _a.never = 137,
+        _a.new = 99,
+        _a.null = 100,
+        _a.number = 140,
+        _a.object = 141,
+        _a.package = 116,
+        _a.private = 117,
+        _a.protected = 118,
+        _a.public = 119,
+        _a.readonly = 138,
+        _a.require = 139,
+        _a.global = 150,
+        _a.return = 101,
+        _a.set = 142,
+        _a.static = 120,
+        _a.string = 143,
+        _a.super = 102,
+        _a.switch = 103,
+        _a.symbol = 144,
+        _a.this = 104,
+        _a.throw = 105,
+        _a.true = 106,
+        _a.try = 107,
+        _a.type = 145,
+        _a.typeof = 108,
+        _a.undefined = 146,
+        _a.unique = 147,
+        _a.unknown = 148,
+        _a.var = 109,
+        _a.void = 110,
+        _a.while = 111,
+        _a.with = 112,
+        _a.yield = 121,
+        _a.async = 126,
+        _a.await = 127,
+        _a.of = 152,
+        _a);
+    var textToKeyword = ts.createMapFromTemplate(textToKeywordObj);
+    var textToToken = ts.createMapFromTemplate(__assign(__assign({}, textToKeywordObj), { "{": 18, "}": 19, "(": 20, ")": 21, "[": 22, "]": 23, ".": 24, "...": 25, ";": 26, ",": 27, "<": 29, ">": 31, "<=": 32, ">=": 33, "==": 34, "!=": 35, "===": 36, "!==": 37, "=>": 38, "+": 39, "-": 40, "**": 42, "*": 41, "/": 43, "%": 44, "++": 45, "--": 46, "<<": 47, "</": 30, ">>": 48, ">>>": 49, "&": 50, "|": 51, "^": 52, "!": 53, "~": 54, "&&": 55, "||": 56, "?": 57, "??": 60, "?.": 28, ":": 58, "=": 62, "+=": 63, "-=": 64, "*=": 65, "**=": 66, "/=": 67, "%=": 68, "<<=": 69, ">>=": 70, ">>>=": 71, "&=": 72, "|=": 73, "^=": 74, "@": 59, "`": 61 }));
+    var unicodeES3IdentifierStart = [170, 170, 181, 181, 186, 186, 192, 214, 216, 246, 248, 543, 546, 563, 592, 685, 688, 696, 699, 705, 720, 721, 736, 740, 750, 750, 890, 890, 902, 902, 904, 906, 908, 908, 910, 929, 931, 974, 976, 983, 986, 1011, 1024, 1153, 1164, 1220, 1223, 1224, 1227, 1228, 1232, 1269, 1272, 1273, 1329, 1366, 1369, 1369, 1377, 1415, 1488, 1514, 1520, 1522, 1569, 1594, 1600, 1610, 1649, 1747, 1749, 1749, 1765, 1766, 1786, 1788, 1808, 1808, 1810, 1836, 1920, 1957, 2309, 2361, 2365, 2365, 2384, 2384, 2392, 2401, 2437, 2444, 2447, 2448, 2451, 2472, 2474, 2480, 2482, 2482, 2486, 2489, 2524, 2525, 2527, 2529, 2544, 2545, 2565, 2570, 2575, 2576, 2579, 2600, 2602, 2608, 2610, 2611, 2613, 2614, 2616, 2617, 2649, 2652, 2654, 2654, 2674, 2676, 2693, 2699, 2701, 2701, 2703, 2705, 2707, 2728, 2730, 2736, 2738, 2739, 2741, 2745, 2749, 2749, 2768, 2768, 2784, 2784, 2821, 2828, 2831, 2832, 2835, 2856, 2858, 2864, 2866, 2867, 2870, 2873, 2877, 2877, 2908, 2909, 2911, 2913, 2949, 2954, 2958, 2960, 2962, 2965, 2969, 2970, 2972, 2972, 2974, 2975, 2979, 2980, 2984, 2986, 2990, 2997, 2999, 3001, 3077, 3084, 3086, 3088, 3090, 3112, 3114, 3123, 3125, 3129, 3168, 3169, 3205, 3212, 3214, 3216, 3218, 3240, 3242, 3251, 3253, 3257, 3294, 3294, 3296, 3297, 3333, 3340, 3342, 3344, 3346, 3368, 3370, 3385, 3424, 3425, 3461, 3478, 3482, 3505, 3507, 3515, 3517, 3517, 3520, 3526, 3585, 3632, 3634, 3635, 3648, 3654, 3713, 3714, 3716, 3716, 3719, 3720, 3722, 3722, 3725, 3725, 3732, 3735, 3737, 3743, 3745, 3747, 3749, 3749, 3751, 3751, 3754, 3755, 3757, 3760, 3762, 3763, 3773, 3773, 3776, 3780, 3782, 3782, 3804, 3805, 3840, 3840, 3904, 3911, 3913, 3946, 3976, 3979, 4096, 4129, 4131, 4135, 4137, 4138, 4176, 4181, 4256, 4293, 4304, 4342, 4352, 4441, 4447, 4514, 4520, 4601, 4608, 4614, 4616, 4678, 4680, 4680, 4682, 4685, 4688, 4694, 4696, 4696, 4698, 4701, 4704, 4742, 4744, 4744, 4746, 4749, 4752, 4782, 4784, 4784, 4786, 4789, 4792, 4798, 4800, 4800, 4802, 4805, 4808, 4814, 4816, 4822, 4824, 4846, 4848, 4878, 4880, 4880, 4882, 4885, 4888, 4894, 4896, 4934, 4936, 4954, 5024, 5108, 5121, 5740, 5743, 5750, 5761, 5786, 5792, 5866, 6016, 6067, 6176, 6263, 6272, 6312, 7680, 7835, 7840, 7929, 7936, 7957, 7960, 7965, 7968, 8005, 8008, 8013, 8016, 8023, 8025, 8025, 8027, 8027, 8029, 8029, 8031, 8061, 8064, 8116, 8118, 8124, 8126, 8126, 8130, 8132, 8134, 8140, 8144, 8147, 8150, 8155, 8160, 8172, 8178, 8180, 8182, 8188, 8319, 8319, 8450, 8450, 8455, 8455, 8458, 8467, 8469, 8469, 8473, 8477, 8484, 8484, 8486, 8486, 8488, 8488, 8490, 8493, 8495, 8497, 8499, 8505, 8544, 8579, 12293, 12295, 12321, 12329, 12337, 12341, 12344, 12346, 12353, 12436, 12445, 12446, 12449, 12538, 12540, 12542, 12549, 12588, 12593, 12686, 12704, 12727, 13312, 19893, 19968, 40869, 40960, 42124, 44032, 55203, 63744, 64045, 64256, 64262, 64275, 64279, 64285, 64285, 64287, 64296, 64298, 64310, 64312, 64316, 64318, 64318, 64320, 64321, 64323, 64324, 64326, 64433, 64467, 64829, 64848, 64911, 64914, 64967, 65008, 65019, 65136, 65138, 65140, 65140, 65142, 65276, 65313, 65338, 65345, 65370, 65382, 65470, 65474, 65479, 65482, 65487, 65490, 65495, 65498, 65500,];
+    var unicodeES3IdentifierPart = [170, 170, 181, 181, 186, 186, 192, 214, 216, 246, 248, 543, 546, 563, 592, 685, 688, 696, 699, 705, 720, 721, 736, 740, 750, 750, 768, 846, 864, 866, 890, 890, 902, 902, 904, 906, 908, 908, 910, 929, 931, 974, 976, 983, 986, 1011, 1024, 1153, 1155, 1158, 1164, 1220, 1223, 1224, 1227, 1228, 1232, 1269, 1272, 1273, 1329, 1366, 1369, 1369, 1377, 1415, 1425, 1441, 1443, 1465, 1467, 1469, 1471, 1471, 1473, 1474, 1476, 1476, 1488, 1514, 1520, 1522, 1569, 1594, 1600, 1621, 1632, 1641, 1648, 1747, 1749, 1756, 1759, 1768, 1770, 1773, 1776, 1788, 1808, 1836, 1840, 1866, 1920, 1968, 2305, 2307, 2309, 2361, 2364, 2381, 2384, 2388, 2392, 2403, 2406, 2415, 2433, 2435, 2437, 2444, 2447, 2448, 2451, 2472, 2474, 2480, 2482, 2482, 2486, 2489, 2492, 2492, 2494, 2500, 2503, 2504, 2507, 2509, 2519, 2519, 2524, 2525, 2527, 2531, 2534, 2545, 2562, 2562, 2565, 2570, 2575, 2576, 2579, 2600, 2602, 2608, 2610, 2611, 2613, 2614, 2616, 2617, 2620, 2620, 2622, 2626, 2631, 2632, 2635, 2637, 2649, 2652, 2654, 2654, 2662, 2676, 2689, 2691, 2693, 2699, 2701, 2701, 2703, 2705, 2707, 2728, 2730, 2736, 2738, 2739, 2741, 2745, 2748, 2757, 2759, 2761, 2763, 2765, 2768, 2768, 2784, 2784, 2790, 2799, 2817, 2819, 2821, 2828, 2831, 2832, 2835, 2856, 2858, 2864, 2866, 2867, 2870, 2873, 2876, 2883, 2887, 2888, 2891, 2893, 2902, 2903, 2908, 2909, 2911, 2913, 2918, 2927, 2946, 2947, 2949, 2954, 2958, 2960, 2962, 2965, 2969, 2970, 2972, 2972, 2974, 2975, 2979, 2980, 2984, 2986, 2990, 2997, 2999, 3001, 3006, 3010, 3014, 3016, 3018, 3021, 3031, 3031, 3047, 3055, 3073, 3075, 3077, 3084, 3086, 3088, 3090, 3112, 3114, 3123, 3125, 3129, 3134, 3140, 3142, 3144, 3146, 3149, 3157, 3158, 3168, 3169, 3174, 3183, 3202, 3203, 3205, 3212, 3214, 3216, 3218, 3240, 3242, 3251, 3253, 3257, 3262, 3268, 3270, 3272, 3274, 3277, 3285, 3286, 3294, 3294, 3296, 3297, 3302, 3311, 3330, 3331, 3333, 3340, 3342, 3344, 3346, 3368, 3370, 3385, 3390, 3395, 3398, 3400, 3402, 3405, 3415, 3415, 3424, 3425, 3430, 3439, 3458, 3459, 3461, 3478, 3482, 3505, 3507, 3515, 3517, 3517, 3520, 3526, 3530, 3530, 3535, 3540, 3542, 3542, 3544, 3551, 3570, 3571, 3585, 3642, 3648, 3662, 3664, 3673, 3713, 3714, 3716, 3716, 3719, 3720, 3722, 3722, 3725, 3725, 3732, 3735, 3737, 3743, 3745, 3747, 3749, 3749, 3751, 3751, 3754, 3755, 3757, 3769, 3771, 3773, 3776, 3780, 3782, 3782, 3784, 3789, 3792, 3801, 3804, 3805, 3840, 3840, 3864, 3865, 3872, 3881, 3893, 3893, 3895, 3895, 3897, 3897, 3902, 3911, 3913, 3946, 3953, 3972, 3974, 3979, 3984, 3991, 3993, 4028, 4038, 4038, 4096, 4129, 4131, 4135, 4137, 4138, 4140, 4146, 4150, 4153, 4160, 4169, 4176, 4185, 4256, 4293, 4304, 4342, 4352, 4441, 4447, 4514, 4520, 4601, 4608, 4614, 4616, 4678, 4680, 4680, 4682, 4685, 4688, 4694, 4696, 4696, 4698, 4701, 4704, 4742, 4744, 4744, 4746, 4749, 4752, 4782, 4784, 4784, 4786, 4789, 4792, 4798, 4800, 4800, 4802, 4805, 4808, 4814, 4816, 4822, 4824, 4846, 4848, 4878, 4880, 4880, 4882, 4885, 4888, 4894, 4896, 4934, 4936, 4954, 4969, 4977, 5024, 5108, 5121, 5740, 5743, 5750, 5761, 5786, 5792, 5866, 6016, 6099, 6112, 6121, 6160, 6169, 6176, 6263, 6272, 6313, 7680, 7835, 7840, 7929, 7936, 7957, 7960, 7965, 7968, 8005, 8008, 8013, 8016, 8023, 8025, 8025, 8027, 8027, 8029, 8029, 8031, 8061, 8064, 8116, 8118, 8124, 8126, 8126, 8130, 8132, 8134, 8140, 8144, 8147, 8150, 8155, 8160, 8172, 8178, 8180, 8182, 8188, 8255, 8256, 8319, 8319, 8400, 8412, 8417, 8417, 8450, 8450, 8455, 8455, 8458, 8467, 8469, 8469, 8473, 8477, 8484, 8484, 8486, 8486, 8488, 8488, 8490, 8493, 8495, 8497, 8499, 8505, 8544, 8579, 12293, 12295, 12321, 12335, 12337, 12341, 12344, 12346, 12353, 12436, 12441, 12442, 12445, 12446, 12449, 12542, 12549, 12588, 12593, 12686, 12704, 12727, 13312, 19893, 19968, 40869, 40960, 42124, 44032, 55203, 63744, 64045, 64256, 64262, 64275, 64279, 64285, 64296, 64298, 64310, 64312, 64316, 64318, 64318, 64320, 64321, 64323, 64324, 64326, 64433, 64467, 64829, 64848, 64911, 64914, 64967, 65008, 65019, 65056, 65059, 65075, 65076, 65101, 65103, 65136, 65138, 65140, 65140, 65142, 65276, 65296, 65305, 65313, 65338, 65343, 65343, 65345, 65370, 65381, 65470, 65474, 65479, 65482, 65487, 65490, 65495, 65498, 65500,];
+    var unicodeES5IdentifierStart = [170, 170, 181, 181, 186, 186, 192, 214, 216, 246, 248, 705, 710, 721, 736, 740, 748, 748, 750, 750, 880, 884, 886, 887, 890, 893, 902, 902, 904, 906, 908, 908, 910, 929, 931, 1013, 1015, 1153, 1162, 1319, 1329, 1366, 1369, 1369, 1377, 1415, 1488, 1514, 1520, 1522, 1568, 1610, 1646, 1647, 1649, 1747, 1749, 1749, 1765, 1766, 1774, 1775, 1786, 1788, 1791, 1791, 1808, 1808, 1810, 1839, 1869, 1957, 1969, 1969, 1994, 2026, 2036, 2037, 2042, 2042, 2048, 2069, 2074, 2074, 2084, 2084, 2088, 2088, 2112, 2136, 2208, 2208, 2210, 2220, 2308, 2361, 2365, 2365, 2384, 2384, 2392, 2401, 2417, 2423, 2425, 2431, 2437, 2444, 2447, 2448, 2451, 2472, 2474, 2480, 2482, 2482, 2486, 2489, 2493, 2493, 2510, 2510, 2524, 2525, 2527, 2529, 2544, 2545, 2565, 2570, 2575, 2576, 2579, 2600, 2602, 2608, 2610, 2611, 2613, 2614, 2616, 2617, 2649, 2652, 2654, 2654, 2674, 2676, 2693, 2701, 2703, 2705, 2707, 2728, 2730, 2736, 2738, 2739, 2741, 2745, 2749, 2749, 2768, 2768, 2784, 2785, 2821, 2828, 2831, 2832, 2835, 2856, 2858, 2864, 2866, 2867, 2869, 2873, 2877, 2877, 2908, 2909, 2911, 2913, 2929, 2929, 2947, 2947, 2949, 2954, 2958, 2960, 2962, 2965, 2969, 2970, 2972, 2972, 2974, 2975, 2979, 2980, 2984, 2986, 2990, 3001, 3024, 3024, 3077, 3084, 3086, 3088, 3090, 3112, 3114, 3123, 3125, 3129, 3133, 3133, 3160, 3161, 3168, 3169, 3205, 3212, 3214, 3216, 3218, 3240, 3242, 3251, 3253, 3257, 3261, 3261, 3294, 3294, 3296, 3297, 3313, 3314, 3333, 3340, 3342, 3344, 3346, 3386, 3389, 3389, 3406, 3406, 3424, 3425, 3450, 3455, 3461, 3478, 3482, 3505, 3507, 3515, 3517, 3517, 3520, 3526, 3585, 3632, 3634, 3635, 3648, 3654, 3713, 3714, 3716, 3716, 3719, 3720, 3722, 3722, 3725, 3725, 3732, 3735, 3737, 3743, 3745, 3747, 3749, 3749, 3751, 3751, 3754, 3755, 3757, 3760, 3762, 3763, 3773, 3773, 3776, 3780, 3782, 3782, 3804, 3807, 3840, 3840, 3904, 3911, 3913, 3948, 3976, 3980, 4096, 4138, 4159, 4159, 4176, 4181, 4186, 4189, 4193, 4193, 4197, 4198, 4206, 4208, 4213, 4225, 4238, 4238, 4256, 4293, 4295, 4295, 4301, 4301, 4304, 4346, 4348, 4680, 4682, 4685, 4688, 4694, 4696, 4696, 4698, 4701, 4704, 4744, 4746, 4749, 4752, 4784, 4786, 4789, 4792, 4798, 4800, 4800, 4802, 4805, 4808, 4822, 4824, 4880, 4882, 4885, 4888, 4954, 4992, 5007, 5024, 5108, 5121, 5740, 5743, 5759, 5761, 5786, 5792, 5866, 5870, 5872, 5888, 5900, 5902, 5905, 5920, 5937, 5952, 5969, 5984, 5996, 5998, 6000, 6016, 6067, 6103, 6103, 6108, 6108, 6176, 6263, 6272, 6312, 6314, 6314, 6320, 6389, 6400, 6428, 6480, 6509, 6512, 6516, 6528, 6571, 6593, 6599, 6656, 6678, 6688, 6740, 6823, 6823, 6917, 6963, 6981, 6987, 7043, 7072, 7086, 7087, 7098, 7141, 7168, 7203, 7245, 7247, 7258, 7293, 7401, 7404, 7406, 7409, 7413, 7414, 7424, 7615, 7680, 7957, 7960, 7965, 7968, 8005, 8008, 8013, 8016, 8023, 8025, 8025, 8027, 8027, 8029, 8029, 8031, 8061, 8064, 8116, 8118, 8124, 8126, 8126, 8130, 8132, 8134, 8140, 8144, 8147, 8150, 8155, 8160, 8172, 8178, 8180, 8182, 8188, 8305, 8305, 8319, 8319, 8336, 8348, 8450, 8450, 8455, 8455, 8458, 8467, 8469, 8469, 8473, 8477, 8484, 8484, 8486, 8486, 8488, 8488, 8490, 8493, 8495, 8505, 8508, 8511, 8517, 8521, 8526, 8526, 8544, 8584, 11264, 11310, 11312, 11358, 11360, 11492, 11499, 11502, 11506, 11507, 11520, 11557, 11559, 11559, 11565, 11565, 11568, 11623, 11631, 11631, 11648, 11670, 11680, 11686, 11688, 11694, 11696, 11702, 11704, 11710, 11712, 11718, 11720, 11726, 11728, 11734, 11736, 11742, 11823, 11823, 12293, 12295, 12321, 12329, 12337, 12341, 12344, 12348, 12353, 12438, 12445, 12447, 12449, 12538, 12540, 12543, 12549, 12589, 12593, 12686, 12704, 12730, 12784, 12799, 13312, 19893, 19968, 40908, 40960, 42124, 42192, 42237, 42240, 42508, 42512, 42527, 42538, 42539, 42560, 42606, 42623, 42647, 42656, 42735, 42775, 42783, 42786, 42888, 42891, 42894, 42896, 42899, 42912, 42922, 43000, 43009, 43011, 43013, 43015, 43018, 43020, 43042, 43072, 43123, 43138, 43187, 43250, 43255, 43259, 43259, 43274, 43301, 43312, 43334, 43360, 43388, 43396, 43442, 43471, 43471, 43520, 43560, 43584, 43586, 43588, 43595, 43616, 43638, 43642, 43642, 43648, 43695, 43697, 43697, 43701, 43702, 43705, 43709, 43712, 43712, 43714, 43714, 43739, 43741, 43744, 43754, 43762, 43764, 43777, 43782, 43785, 43790, 43793, 43798, 43808, 43814, 43816, 43822, 43968, 44002, 44032, 55203, 55216, 55238, 55243, 55291, 63744, 64109, 64112, 64217, 64256, 64262, 64275, 64279, 64285, 64285, 64287, 64296, 64298, 64310, 64312, 64316, 64318, 64318, 64320, 64321, 64323, 64324, 64326, 64433, 64467, 64829, 64848, 64911, 64914, 64967, 65008, 65019, 65136, 65140, 65142, 65276, 65313, 65338, 65345, 65370, 65382, 65470, 65474, 65479, 65482, 65487, 65490, 65495, 65498, 65500,];
+    var unicodeES5IdentifierPart = [170, 170, 181, 181, 186, 186, 192, 214, 216, 246, 248, 705, 710, 721, 736, 740, 748, 748, 750, 750, 768, 884, 886, 887, 890, 893, 902, 902, 904, 906, 908, 908, 910, 929, 931, 1013, 1015, 1153, 1155, 1159, 1162, 1319, 1329, 1366, 1369, 1369, 1377, 1415, 1425, 1469, 1471, 1471, 1473, 1474, 1476, 1477, 1479, 1479, 1488, 1514, 1520, 1522, 1552, 1562, 1568, 1641, 1646, 1747, 1749, 1756, 1759, 1768, 1770, 1788, 1791, 1791, 1808, 1866, 1869, 1969, 1984, 2037, 2042, 2042, 2048, 2093, 2112, 2139, 2208, 2208, 2210, 2220, 2276, 2302, 2304, 2403, 2406, 2415, 2417, 2423, 2425, 2431, 2433, 2435, 2437, 2444, 2447, 2448, 2451, 2472, 2474, 2480, 2482, 2482, 2486, 2489, 2492, 2500, 2503, 2504, 2507, 2510, 2519, 2519, 2524, 2525, 2527, 2531, 2534, 2545, 2561, 2563, 2565, 2570, 2575, 2576, 2579, 2600, 2602, 2608, 2610, 2611, 2613, 2614, 2616, 2617, 2620, 2620, 2622, 2626, 2631, 2632, 2635, 2637, 2641, 2641, 2649, 2652, 2654, 2654, 2662, 2677, 2689, 2691, 2693, 2701, 2703, 2705, 2707, 2728, 2730, 2736, 2738, 2739, 2741, 2745, 2748, 2757, 2759, 2761, 2763, 2765, 2768, 2768, 2784, 2787, 2790, 2799, 2817, 2819, 2821, 2828, 2831, 2832, 2835, 2856, 2858, 2864, 2866, 2867, 2869, 2873, 2876, 2884, 2887, 2888, 2891, 2893, 2902, 2903, 2908, 2909, 2911, 2915, 2918, 2927, 2929, 2929, 2946, 2947, 2949, 2954, 2958, 2960, 2962, 2965, 2969, 2970, 2972, 2972, 2974, 2975, 2979, 2980, 2984, 2986, 2990, 3001, 3006, 3010, 3014, 3016, 3018, 3021, 3024, 3024, 3031, 3031, 3046, 3055, 3073, 3075, 3077, 3084, 3086, 3088, 3090, 3112, 3114, 3123, 3125, 3129, 3133, 3140, 3142, 3144, 3146, 3149, 3157, 3158, 3160, 3161, 3168, 3171, 3174, 3183, 3202, 3203, 3205, 3212, 3214, 3216, 3218, 3240, 3242, 3251, 3253, 3257, 3260, 3268, 3270, 3272, 3274, 3277, 3285, 3286, 3294, 3294, 3296, 3299, 3302, 3311, 3313, 3314, 3330, 3331, 3333, 3340, 3342, 3344, 3346, 3386, 3389, 3396, 3398, 3400, 3402, 3406, 3415, 3415, 3424, 3427, 3430, 3439, 3450, 3455, 3458, 3459, 3461, 3478, 3482, 3505, 3507, 3515, 3517, 3517, 3520, 3526, 3530, 3530, 3535, 3540, 3542, 3542, 3544, 3551, 3570, 3571, 3585, 3642, 3648, 3662, 3664, 3673, 3713, 3714, 3716, 3716, 3719, 3720, 3722, 3722, 3725, 3725, 3732, 3735, 3737, 3743, 3745, 3747, 3749, 3749, 3751, 3751, 3754, 3755, 3757, 3769, 3771, 3773, 3776, 3780, 3782, 3782, 3784, 3789, 3792, 3801, 3804, 3807, 3840, 3840, 3864, 3865, 3872, 3881, 3893, 3893, 3895, 3895, 3897, 3897, 3902, 3911, 3913, 3948, 3953, 3972, 3974, 3991, 3993, 4028, 4038, 4038, 4096, 4169, 4176, 4253, 4256, 4293, 4295, 4295, 4301, 4301, 4304, 4346, 4348, 4680, 4682, 4685, 4688, 4694, 4696, 4696, 4698, 4701, 4704, 4744, 4746, 4749, 4752, 4784, 4786, 4789, 4792, 4798, 4800, 4800, 4802, 4805, 4808, 4822, 4824, 4880, 4882, 4885, 4888, 4954, 4957, 4959, 4992, 5007, 5024, 5108, 5121, 5740, 5743, 5759, 5761, 5786, 5792, 5866, 5870, 5872, 5888, 5900, 5902, 5908, 5920, 5940, 5952, 5971, 5984, 5996, 5998, 6000, 6002, 6003, 6016, 6099, 6103, 6103, 6108, 6109, 6112, 6121, 6155, 6157, 6160, 6169, 6176, 6263, 6272, 6314, 6320, 6389, 6400, 6428, 6432, 6443, 6448, 6459, 6470, 6509, 6512, 6516, 6528, 6571, 6576, 6601, 6608, 6617, 6656, 6683, 6688, 6750, 6752, 6780, 6783, 6793, 6800, 6809, 6823, 6823, 6912, 6987, 6992, 7001, 7019, 7027, 7040, 7155, 7168, 7223, 7232, 7241, 7245, 7293, 7376, 7378, 7380, 7414, 7424, 7654, 7676, 7957, 7960, 7965, 7968, 8005, 8008, 8013, 8016, 8023, 8025, 8025, 8027, 8027, 8029, 8029, 8031, 8061, 8064, 8116, 8118, 8124, 8126, 8126, 8130, 8132, 8134, 8140, 8144, 8147, 8150, 8155, 8160, 8172, 8178, 8180, 8182, 8188, 8204, 8205, 8255, 8256, 8276, 8276, 8305, 8305, 8319, 8319, 8336, 8348, 8400, 8412, 8417, 8417, 8421, 8432, 8450, 8450, 8455, 8455, 8458, 8467, 8469, 8469, 8473, 8477, 8484, 8484, 8486, 8486, 8488, 8488, 8490, 8493, 8495, 8505, 8508, 8511, 8517, 8521, 8526, 8526, 8544, 8584, 11264, 11310, 11312, 11358, 11360, 11492, 11499, 11507, 11520, 11557, 11559, 11559, 11565, 11565, 11568, 11623, 11631, 11631, 11647, 11670, 11680, 11686, 11688, 11694, 11696, 11702, 11704, 11710, 11712, 11718, 11720, 11726, 11728, 11734, 11736, 11742, 11744, 11775, 11823, 11823, 12293, 12295, 12321, 12335, 12337, 12341, 12344, 12348, 12353, 12438, 12441, 12442, 12445, 12447, 12449, 12538, 12540, 12543, 12549, 12589, 12593, 12686, 12704, 12730, 12784, 12799, 13312, 19893, 19968, 40908, 40960, 42124, 42192, 42237, 42240, 42508, 42512, 42539, 42560, 42607, 42612, 42621, 42623, 42647, 42655, 42737, 42775, 42783, 42786, 42888, 42891, 42894, 42896, 42899, 42912, 42922, 43000, 43047, 43072, 43123, 43136, 43204, 43216, 43225, 43232, 43255, 43259, 43259, 43264, 43309, 43312, 43347, 43360, 43388, 43392, 43456, 43471, 43481, 43520, 43574, 43584, 43597, 43600, 43609, 43616, 43638, 43642, 43643, 43648, 43714, 43739, 43741, 43744, 43759, 43762, 43766, 43777, 43782, 43785, 43790, 43793, 43798, 43808, 43814, 43816, 43822, 43968, 44010, 44012, 44013, 44016, 44025, 44032, 55203, 55216, 55238, 55243, 55291, 63744, 64109, 64112, 64217, 64256, 64262, 64275, 64279, 64285, 6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+    var unicodeESNextIdentifierPart = [48, 57, 65, 90, 95, 95, 97, 122, 170, 170, 181, 181, 183, 183, 186, 186, 192, 214, 216, 246, 248, 705, 710, 721, 736, 740, 748, 748, 750, 750, 768, 884, 886, 887, 890, 893, 895, 895, 902, 906, 908, 908, 910, 929, 931, 1013, 1015, 1153, 1155, 1159, 1162, 1327, 1329, 1366, 1369, 1369, 1376, 1416, 1425, 1469, 1471, 1471, 1473, 1474, 1476, 1477, 1479, 1479, 1488, 1514, 1519, 1522, 1552, 1562, 1568, 1641, 1646, 1747, 1749, 1756, 1759, 1768, 1770, 1788, 1791, 1791, 1808, 1866, 1869, 1969, 1984, 2037, 2042, 2042, 2045, 2045, 2048, 2093, 2112, 2139, 2144, 2154, 2208, 2228, 2230, 2237, 2259, 2273, 2275, 2403, 2406, 2415, 2417, 2435, 2437, 2444, 2447, 2448, 2451, 2472, 2474, 2480, 2482, 2482, 2486, 2489, 2492, 2500, 2503, 2504, 2507, 2510, 2519, 2519, 2524, 2525, 2527, 2531, 2534, 2545, 2556, 2556, 2558, 2558, 2561, 2563, 2565, 2570, 2575, 2576, 2579, 2600, 2602, 2608, 2610, 2611, 2613, 2614, 2616, 2617, 2620, 2620, 2622, 2626, 2631, 2632, 2635, 2637, 2641, 2641, 2649, 2652, 2654, 2654, 2662, 2677, 2689, 2691, 2693, 2701, 2703, 2705, 2707, 2728, 2730, 2736, 2738, 2739, 2741, 2745, 2748, 2757, 2759, 2761, 2763, 2765, 2768, 2768, 2784, 2787, 2790, 2799, 2809, 2815, 2817, 2819, 2821, 2828, 2831, 2832, 2835, 2856, 2858, 2864, 2866, 2867, 2869, 2873, 2876, 2884, 2887, 2888, 2891, 2893, 2902, 2903, 2908, 2909, 2911, 2915, 2918, 2927, 2929, 2929, 2946, 2947, 2949, 2954, 2958, 2960, 2962, 2965, 2969, 2970, 2972, 2972, 2974, 2975, 2979, 2980, 2984, 2986, 2990, 3001, 3006, 3010, 3014, 3016, 3018, 3021, 3024, 3024, 3031, 3031, 3046, 3055, 3072, 3084, 3086, 3088, 3090, 3112, 3114, 3129, 3133, 3140, 3142, 3144, 3146, 3149, 3157, 3158, 3160, 3162, 3168, 3171, 3174, 3183, 3200, 3203, 3205, 3212, 3214, 3216, 3218, 3240, 3242, 3251, 3253, 3257, 3260, 3268, 3270, 3272, 3274, 3277, 3285, 3286, 3294, 3294, 3296, 3299, 3302, 3311, 3313, 3314, 3328, 3331, 3333, 3340, 3342, 3344, 3346, 3396, 3398, 3400, 3402, 3406, 3412, 3415, 3423, 3427, 3430, 3439, 3450, 3455, 3458, 3459, 3461, 3478, 3482, 3505, 3507, 3515, 3517, 3517, 3520, 3526, 3530, 3530, 3535, 3540, 3542, 3542, 3544, 3551, 3558, 3567, 3570, 3571, 3585, 3642, 3648, 3662, 3664, 3673, 3713, 3714, 3716, 3716, 3718, 3722, 3724, 3747, 3749, 3749, 3751, 3773, 3776, 3780, 3782, 3782, 3784, 3789, 3792, 3801, 3804, 3807, 3840, 3840, 3864, 3865, 3872, 3881, 3893, 3893, 3895, 3895, 3897, 3897, 3902, 3911, 3913, 3948, 3953, 3972, 3974, 3991, 3993, 4028, 4038, 4038, 4096, 4169, 4176, 4253, 4256, 4293, 4295, 4295, 4301, 4301, 4304, 4346, 4348, 4680, 4682, 4685, 4688, 4694, 4696, 4696, 4698, 4701, 4704, 4744, 4746, 4749, 4752, 4784, 4786, 4789, 4792, 4798, 4800, 4800, 4802, 4805, 4808, 4822, 4824, 4880, 4882, 4885, 4888, 4954, 4957, 4959, 4969, 4977, 4992, 5007, 5024, 5109, 5112, 5117, 5121, 5740, 5743, 5759, 5761, 5786, 5792, 5866, 5870, 5880, 5888, 5900, 5902, 5908, 5920, 5940, 5952, 5971, 5984, 5996, 5998, 6000, 6002, 6003, 6016, 6099, 6103, 6103, 6108, 6109, 6112, 6121, 6155, 6157, 6160, 6169, 6176, 6264, 6272, 6314, 6320, 6389, 6400, 6430, 6432, 6443, 6448, 6459, 6470, 6509, 6512, 6516, 6528, 6571, 6576, 6601, 6608, 6618, 6656, 6683, 6688, 6750, 6752, 6780, 6783, 6793, 6800, 6809, 6823, 6823, 6832, 6845, 6912, 6987, 6992, 7001, 7019, 7027, 7040, 7155, 7168, 7223, 7232, 7241, 7245, 7293, 7296, 7304, 7312, 7354, 7357, 7359, 7376, 7378, 7380, 7418, 7424, 7673, 7675, 7957, 7960, 7965, 7968, 8005, 8008, 8013, 8016, 8023, 8025, 8025, 8027, 8027, 8029, 8029, 8031, 8061, 8064, 8116, 8118, 8124, 8126, 8126, 8130, 8132, 8134, 8140, 8144, 8147, 8150, 8155, 8160, 8172, 8178, 8180, 8182, 8188, 8255, 8256, 8276, 8276, 8305, 8305, 8319, 8319, 8336, 8348, 8400, 8412, 8417, 8417, 8421, 8432, 8450, 8450, 8455, 8455, 8458, 8467, 8469, 8469, 8472, 8477, 8484, 8484, 8486, 8486, 8488, 8488, 8490, 8505, 8508, 8511, 8517, 8521, 8526, 8526, 8544, 8584, 11264, 11310, 11312, 11358, 11360, 11492, 11499, 11507, 11520, 11557, 11559, 11559, 11565, 11565, 11568, 11623, 11631, 11631, 11647, 11670, 11680, 11686, 11688, 11694, 11696, 11702, 11704, 11710, 11712, 11718, 11720, 11726, 11728, 11734, 11736, 11742, 11744, 11775, 12293, 12295, 12321, 12335, 12337, 12341, 12344, 12348, 12353, 12438, 12441, 12447, 12449, 12538, 12540, 12543, 12549, 12591, 12593, 12686, 12704, 12730, 12784, 12799, 13312, 19893, 19968, 40943, 40960, 42124, 42192, 42237, 42240, 42508, 42512, 42539, 42560, 42607, 42612, 42621, 42623, 42737, 42775, 42783, 42786, 42888, 42891, 42943, 42946, 42950, 42999, 43047, 43072, 43123, 43136, 43205, 43216, 43225, 43232, 43255, 43259, 43259, 43261, 43309, 43312, 43347, 43360, 43388, 43392, 43456, 43471, 43481, 43488, 43518, 43520, 43574, 43584, 43597, 43600, 43609, 43616, 43638, 43642, 43714, 43739, 43741, 43744, 43759, 43762, 43766, 43777, 43782, 43785, 43790, 43793, 43798, 43808, 43814, 43816, 43822, 43824, 43866, 43868, 43879, 43888, 44010, 44012, 44013, 44016, 44025, 44032, 55203, 55216, 55238, 55243, 55291, 63744, 64109, 64112, 64217, 64256, 64262, 64275, 64279, 64285, 64296, 64298, 64310, 64312, 64316, 64318, 64318, 64320, 64321, 64323, 64324, 64326, 64433, 64467, 64829, 64848, 64911, 64914, 64967, 65008, 65019, 65024, 65039, 65056, 65071, 65075, 65076, 65101, 65103, 65136, 65140, 65142, 65276, 65296, 65305, 65313, 65338, 65343, 65343, 65345, 65370, 65382, 65470, 65474, 65479, 65482, 65487, 65490, 65495, 65498, 65500, 65536, 65547, 65549, 65574, 65576, 65594, 65596, 65597, 65599, 65613, 65616, 65629, 65664, 65786, 65856, 65908, 66045, 66045, 66176, 66204, 66208, 66256, 66272, 66272, 66304, 66335, 66349, 66378, 66384, 66426, 66432, 66461, 66464, 66499, 66504, 66511, 66513, 66517, 66560, 66717, 66720, 66729, 66736, 66771, 66776, 66811, 66816, 66855, 66864, 66915, 67072, 67382, 67392, 67413, 67424, 67431, 67584, 67589, 67592, 67592, 67594, 67637, 67639, 67640, 67644, 67644, 67647, 67669, 67680, 67702, 67712, 67742, 67808, 67826, 67828, 67829, 67840, 67861, 67872, 67897, 67968, 68023, 68030, 68031, 68096, 68099, 68101, 68102, 68108, 68115, 68117, 68119, 68121, 68149, 68152, 68154, 68159, 68159, 68192, 68220, 68224, 68252, 68288, 68295, 68297, 68326, 68352, 68405, 68416, 68437, 68448, 68466, 68480, 68497, 68608, 68680, 68736, 68786, 68800, 68850, 68864, 68903, 68912, 68921, 69376, 69404, 69415, 69415, 69424, 69456, 69600, 69622, 69632, 69702, 69734, 69743, 69759, 69818, 69840, 69864, 69872, 69881, 69888, 69940, 69942, 69951, 69956, 69958, 69968, 70003, 70006, 70006, 70016, 70084, 70089, 70092, 70096, 70106, 70108, 70108, 70144, 70161, 70163, 70199, 70206, 70206, 70272, 70278, 70280, 70280, 70282, 70285, 70287, 70301, 70303, 70312, 70320, 70378, 70384, 70393, 70400, 70403, 70405, 70412, 70415, 70416, 70419, 70440, 70442, 70448, 70450, 70451, 70453, 70457, 70459, 70468, 70471, 70472, 70475, 70477, 70480, 70480, 70487, 70487, 70493, 70499, 70502, 70508, 70512, 70516, 70656, 70730, 70736, 70745, 70750, 70751, 70784, 70853, 70855, 70855, 70864, 70873, 71040, 71093, 71096, 71104, 71128, 71133, 71168, 71232, 71236, 71236, 71248, 71257, 71296, 71352, 71360, 71369, 71424, 71450, 71453, 71467, 71472, 71481, 71680, 71738, 71840, 71913, 71935, 71935, 72096, 72103, 72106, 72151, 72154, 72161, 72163, 72164, 72192, 72254, 72263, 72263, 72272, 72345, 72349, 72349, 72384, 72440, 72704, 72712, 72714, 72758, 72760, 72768, 72784, 72793, 72818, 72847, 72850, 72871, 72873, 72886, 72960, 72966, 72968, 72969, 72971, 73014, 73018, 73018, 73020, 73021, 73023, 73031, 73040, 73049, 73056, 73061, 73063, 73064, 73066, 73102, 73104, 73105, 73107, 73112, 73120, 73129, 73440, 73462, 73728, 74649, 74752, 74862, 74880, 75075, 77824, 78894, 82944, 83526, 92160, 92728, 92736, 92766, 92768, 92777, 92880, 92909, 92912, 92916, 92928, 92982, 92992, 92995, 93008, 93017, 93027, 93047, 93053, 93071, 93760, 93823, 93952, 94026, 94031, 94087, 94095, 94111, 94176, 94177, 94179, 94179, 94208, 100343, 100352, 101106, 110592, 110878, 110928, 110930, 110948, 110951, 110960, 111355, 113664, 113770, 113776, 113788, 113792, 113800, 113808, 113817, 113821, 113822, 119141, 119145, 119149, 119154, 119163, 119170, 119173, 119179, 119210, 119213, 119362, 119364, 119808, 119892, 119894, 119964, 119966, 119967, 119970, 119970, 119973, 119974, 119977, 119980, 119982, 119993, 119995, 119995, 119997, 120003, 120005, 120069, 120071, 120074, 120077, 120084, 120086, 120092, 120094, 120121, 120123, 120126, 120128, 120132, 120134, 120134, 120138, 120144, 120146, 120485, 120488, 120512, 120514, 120538, 120540, 120570, 120572, 120596, 120598, 120628, 120630, 120654, 120656, 120686, 120688, 120712, 120714, 120744, 120746, 120770, 120772, 120779, 120782, 120831, 121344, 121398, 121403, 121452, 121461, 121461, 121476, 121476, 121499, 121503, 121505, 121519, 122880, 122886, 122888, 122904, 122907, 122913, 122915, 122916, 122918, 122922, 123136, 123180, 123184, 123197, 123200, 123209, 123214, 123214, 123584, 123641, 124928, 125124, 125136, 125142, 125184, 125259, 125264, 125273, 126464, 126467, 126469, 126495, 126497, 126498, 126500, 126500, 126503, 126503, 126505, 126514, 126516, 126519, 126521, 126521, 126523, 126523, 126530, 126530, 126535, 126535, 126537, 126537, 126539, 126539, 126541, 126543, 126545, 126546, 126548, 126548, 126551, 126551, 126553, 126553, 126555, 126555, 126557, 126557, 126559, 126559, 126561, 126562, 126564, 126564, 126567, 126570, 126572, 126578, 126580, 126583, 126585, 126588, 126590, 126590, 126592, 126601, 126603, 126619, 126625, 126627, 126629, 126633, 126635, 126651, 131072, 173782, 173824, 177972, 177984, 178205, 178208, 183969, 183984, 191456, 194560, 195101, 917760, 917999];
+    var commentDirectiveRegExSingleLine = /^\s*\/\/\/?\s*@(ts-expect-error|ts-ignore)/;
+    var commentDirectiveRegExMultiLine = /^\s*(?:\/|\*)*\s*@(ts-expect-error|ts-ignore)/;
+    function lookupInUnicodeMap(code, map) {
+        if (code < map[0]) {
+            return false;
+        }
+        var lo = 0;
+        var hi = map.length;
+        var mid;
+        while (lo + 1 < hi) {
+            mid = lo + (hi - lo) / 2;
+            mid -= mid % 2;
+            if (map[mid] <= code && code <= map[mid + 1]) {
+                return true;
+            }
+            if (code < map[mid]) {
+                hi = mid;
+            }
+            else {
+                lo = mid + 2;
+            }
+        }
+        return false;
+    }
+    function isUnicodeIdentifierStart(code, languageVersion) {
+        return languageVersion >= 2 ?
+            lookupInUnicodeMap(code, unicodeESNextIdentifierStart) :
+            languageVersion === 1 ? lookupInUnicodeMap(code, unicodeES5IdentifierStart) :
+                lookupInUnicodeMap(code, unicodeES3IdentifierStart);
+    }
+    ts.isUnicodeIdentifierStart = isUnicodeIdentifierStart;
+    function isUnicodeIdentifierPart(code, languageVersion) {
+        return languageVersion >= 2 ?
+            lookupInUnicodeMap(code, unicodeESNextIdentifierPart) :
+            languageVersion === 1 ? lookupInUnicodeMap(code, unicodeES5IdentifierPart) :
+                lookupInUnicodeMap(code, unicodeES3IdentifierPart);
+    }
+    function makeReverseMap(source) {
+        var result = [];
+        source.forEach(function (value, name) {
+            result[value] = name;
+        });
+        return result;
+    }
+    var tokenStrings = makeReverseMap(textToToken);
+    function tokenToString(t) {
+        return tokenStrings[t];
+    }
+    ts.tokenToString = tokenToString;
+    function stringToToken(s) {
+        return textToToken.get(s);
+    }
+    ts.stringToToken = stringToToken;
+    function computeLineStarts(text) {
+        var result = new Array();
+        var pos = 0;
+        var lineStart = 0;
+        while (pos < text.length) {
+            var ch = text.charCodeAt(pos);
+            pos++;
+            switch (ch) {
+                case 13:
+                    if (text.charCodeAt(pos) === 10) {
+                        pos++;
+                    }
+                case 10:
+                    result.push(lineStart);
+                    lineStart = pos;
+                    break;
+                default:
+                    if (ch > 127 && isLineBreak(ch)) {
+                        result.push(lineStart);
+                        lineStart = pos;
+                    }
+                    break;
+            }
+        }
+        result.push(lineStart);
+        return result;
+    }
+    ts.computeLineStarts = computeLineStarts;
+    function getPositionOfLineAndCharacter(sourceFile, line, character, allowEdits) {
+        return sourceFile.getPositionOfLineAndCharacter ?
+            sourceFile.getPositionOfLineAndCharacter(line, character, allowEdits) :
+            computePositionOfLineAndCharacter(getLineStarts(sourceFile), line, character, sourceFile.text, allowEdits);
+    }
+    ts.getPositionOfLineAndCharacter = getPositionOfLineAndCharacter;
+    function computePositionOfLineAndCharacter(lineStarts, line, character, debugText, allowEdits) {
+        if (line < 0 || line >= lineStarts.length) {
+            if (allowEdits) {
+                line = line < 0 ? 0 : line >= lineStarts.length ? lineStarts.length - 1 : line;
+            }
+            else {
+                ts.Debug.fail("Bad line number. Line: " + line + ", lineStarts.length: " + lineStarts.length + " , line map is correct? " + (debugText !== undefined ? ts.arraysEqual(lineStarts, computeLineStarts(debugText)) : "unknown"));
+            }
+        }
+        var res = lineStarts[line] + character;
+        if (allowEdits) {
+            return res > lineStarts[line + 1] ? lineStarts[line + 1] : typeof debugText === "string" && res > debugText.length ? debugText.length : res;
+        }
+        if (line < lineStarts.length - 1) {
+            ts.Debug.assert(res < lineStarts[line + 1]);
+        }
+        else if (debugText !== undefined) {
+            ts.Debug.assert(res <= debugText.length);
+        }
+        return res;
+    }
+    ts.computePositionOfLineAndCharacter = computePositionOfLineAndCharacter;
+    function getLineStarts(sourceFile) {
+        return sourceFile.lineMap || (sourceFile.lineMap = computeLineStarts(sourceFile.text));
+    }
+    ts.getLineStarts = getLineStarts;
+    function computeLineAndCharacterOfPosition(lineStarts, position) {
+        var lineNumber = computeLineOfPosition(lineStarts, position);
+        return {
+            line: lineNumber,
+            character: position - lineStarts[lineNumber]
+        };
+    }
+    ts.computeLineAndCharacterOfPosition = computeLineAndCharacterOfPosition;
+    function computeLineOfPosition(lineStarts, position, lowerBound) {
+        var lineNumber = ts.binarySearch(lineStarts, position, ts.identity, ts.compareValues, lowerBound);
+        if (lineNumber < 0) {
+            lineNumber = ~lineNumber - 1;
+            ts.Debug.assert(lineNumber !== -1, "position cannot precede the beginning of the file");
+        }
+        return lineNumber;
+    }
+    ts.computeLineOfPosition = computeLineOfPosition;
+    function getLinesBetweenPositions(sourceFile, pos1, pos2) {
+        if (pos1 === pos2)
+            return 0;
+        var lineStarts = getLineStarts(sourceFile);
+        var lower = Math.min(pos1, pos2);
+        var isNegative = lower === pos2;
+        var upper = isNegative ? pos1 : pos2;
+        var lowerLine = computeLineOfPosition(lineStarts, lower);
+        var upperLine = computeLineOfPosition(lineStarts, upper, lowerLine);
+        return isNegative ? lowerLine - upperLine : upperLine - lowerLine;
+    }
+    ts.getLinesBetweenPositions = getLinesBetweenPositions;
+    function getLineAndCharacterOfPosition(sourceFile, position) {
+        return computeLineAndCharacterOfPosition(getLineStarts(sourceFile), position);
+    }
+    ts.getLineAndCharacterOfPosition = getLineAndCharacterOfPosition;
+    function isWhiteSpaceLike(ch) {
+        return isWhiteSpaceSingleLine(ch) || isLineBreak(ch);
+    }
+    ts.isWhiteSpaceLike = isWhiteSpaceLike;
+    function isWhiteSpaceSingleLine(ch) {
+        return ch === 32 ||
+            ch === 9 ||
+            ch === 11 ||
+            ch === 12 ||
+            ch === 160 ||
+            ch === 133 ||
+            ch === 5760 ||
+            ch >= 8192 && ch <= 8203 ||
+            ch === 8239 ||
+            ch === 8287 ||
+            ch === 12288 ||
+            ch === 65279;
+    }
+    ts.isWhiteSpaceSingleLine = isWhiteSpaceSingleLine;
+    function isLineBreak(ch) {
+        return ch === 10 ||
+            ch === 13 ||
+            ch === 8232 ||
+            ch === 8233;
+    }
+    ts.isLineBreak = isLineBreak;
+    function isDigit(ch) {
+        return ch >= 48 && ch <= 57;
+    }
+    function isHexDigit(ch) {
+        return isDigit(ch) || ch >= 65 && ch <= 70 || ch >= 97 && ch <= 102;
+    }
+    function isCodePoint(code) {
+        return code <= 0x10FFFF;
+    }
+    function isOctalDigit(ch) {
+        return ch >= 48 && ch <= 55;
+    }
+    ts.isOctalDigit = isOctalDigit;
+    function couldStartTrivia(text, pos) {
+        var ch = text.charCodeAt(pos);
+        switch (ch) {
+            case 13:
+            case 10:
+            case 9:
+            case 11:
+            case 12:
+            case 32:
+            case 47:
+            case 60:
+            case 124:
+            case 61:
+            case 62:
+                return true;
+            case 35:
+                return pos === 0;
+            default:
+                return ch > 127;
+        }
+    }
+    ts.couldStartTrivia = couldStartTrivia;
+    function skipTrivia(text, pos, stopAfterLineBreak, stopAtComments) {
+        if (stopAtComments === void 0) { stopAtComments = false; }
+        if (ts.positionIsSynthesized(pos)) {
+            return pos;
+        }
+        while (true) {
+            var ch = text.charCodeAt(pos);
+            switch (ch) {
+                case 13:
+                    if (text.charCodeAt(pos + 1) === 10) {
+                        pos++;
+                    }
+                case 10:
+                    pos++;
+                    if (stopAfterLineBreak) {
+                        return pos;
+                    }
+                    continue;
+                case 9:
+                case 11:
+                case 12:
+                case 32:
+                    pos++;
+                    continue;
+                case 47:
+                    if (stopAtComments) {
+                        break;
+                    }
+                    if (text.charCodeAt(pos + 1) === 47) {
+                        pos += 2;
+                        while (pos < text.length) {
+                            if (isLineBreak(text.charCodeAt(pos))) {
+                                break;
+                            }
+                            pos++;
+                        }
+                        continue;
+                    }
+                    if (text.charCodeAt(pos + 1) === 42) {
+                        pos += 2;
+                        while (pos < text.length) {
+                            if (text.charCodeAt(pos) === 42 && text.charCodeAt(pos + 1) === 47) {
+                                pos += 2;
+                                break;
+                            }
+                            pos++;
+                        }
+                        continue;
+                    }
+                    break;
+                case 60:
+                case 124:
+                case 61:
+                case 62:
+                    if (isConflictMarkerTrivia(text, pos)) {
+                        pos = scanConflictMarkerTrivia(text, pos);
+                        continue;
+                    }
+                    break;
+                case 35:
+                    if (pos === 0 && isShebangTrivia(text, pos)) {
+                        pos = scanShebangTrivia(text, pos);
+                        continue;
+                    }
+                    break;
+                default:
+                    if (ch > 127 && (isWhiteSpaceLike(ch))) {
+                        pos++;
+                        continue;
+                    }
+                    break;
+            }
+            return pos;
+        }
+    }
+    ts.skipTrivia = skipTrivia;
+    var mergeConflictMarkerLength = "<<<<<<<".length;
+    function isConflictMarkerTrivia(text, pos) {
+        ts.Debug.assert(pos >= 0);
+        if (pos === 0 || isLineBreak(text.charCodeAt(pos - 1))) {
+            var ch = text.charCodeAt(pos);
+            if ((pos + mergeConflictMarkerLength) < text.length) {
+                for (var i = 0; i < mergeConflictMarkerLength; i++) {
+                    if (text.charCodeAt(pos + i) !== ch) {
+                        return false;
+                    }
+                }
+                return ch === 61 ||
+                    text.charCodeAt(pos + mergeConflictMarkerLength) === 32;
+            }
+        }
+        return false;
+    }
+    function scanConflictMarkerTrivia(text, pos, error) {
+        if (error) {
+            error(ts.Diagnostics.Merge_conflict_marker_encountered, pos, mergeConflictMarkerLength);
+        }
+        var ch = text.charCodeAt(pos);
+        var len = text.length;
+        if (ch === 60 || ch === 62) {
+            while (pos < len && !isLineBreak(text.charCodeAt(pos))) {
+                pos++;
+            }
+        }
+        else {
+            ts.Debug.assert(ch === 124 || ch === 61);
+            while (pos < len) {
+                var currentChar = text.charCodeAt(pos);
+                if ((currentChar === 61 || currentChar === 62) && currentChar !== ch && isConflictMarkerTrivia(text, pos)) {
+                    break;
+                }
+                pos++;
+            }
+        }
+        return pos;
+    }
+    var shebangTriviaRegex = /^#!.*/;
+    function isShebangTrivia(text, pos) {
+        ts.Debug.assert(pos === 0);
+        return shebangTriviaRegex.test(text);
+    }
+    ts.isShebangTrivia = isShebangTrivia;
+    function scanShebangTrivia(text, pos) {
+        var shebang = shebangTriviaRegex.exec(text)[0];
+        pos = pos + shebang.length;
+        return pos;
+    }
+    ts.scanShebangTrivia = scanShebangTrivia;
+    function iterateCommentRanges(reduce, text, pos, trailing, cb, state, initial) {
+        var pendingPos;
+        var pendingEnd;
+        var pendingKind;
+        var pendingHasTrailingNewLine;
+        var hasPendingCommentRange = false;
+        var collecting = trailing;
+        var accumulator = initial;
+        if (pos === 0) {
+            collecting = true;
+            var shebang = getShebang(text);
+            if (shebang) {
+                pos = shebang.length;
+            }
+        }
+        scan: while (pos >= 0 && pos < text.length) {
+            var ch = text.charCodeAt(pos);
+            switch (ch) {
+                case 13:
+                    if (text.charCodeAt(pos + 1) === 10) {
+                        pos++;
+                    }
+                case 10:
+                    pos++;
+                    if (trailing) {
+                        break scan;
+                    }
+                    collecting = true;
+                    if (hasPendingCommentRange) {
+                        pendingHasTrailingNewLine = true;
+                    }
+                    continue;
+                case 9:
+                case 11:
+                case 12:
+                case 32:
+                    pos++;
+                    continue;
+                case 47:
+                    var nextChar = text.charCodeAt(pos + 1);
+                    var hasTrailingNewLine = false;
+                    if (nextChar === 47 || nextChar === 42) {
+                        var kind = nextChar === 47 ? 2 : 3;
+                        var startPos = pos;
+                        pos += 2;
+                        if (nextChar === 47) {
+                            while (pos < text.length) {
+                                if (isLineBreak(text.charCodeAt(pos))) {
+                                    hasTrailingNewLine = true;
+                                    break;
+                                }
+                                pos++;
+                            }
+                        }
+                        else {
+                            while (pos < text.length) {
+                                if (text.charCodeAt(pos) === 42 && text.charCodeAt(pos + 1) === 47) {
+                                    pos += 2;
+                                    break;
+                                }
+                                pos++;
+                            }
+                        }
+                        if (collecting) {
+                            if (hasPendingCommentRange) {
+                                accumulator = cb(pendingPos, pendingEnd, pendingKind, pendingHasTrailingNewLine, state, accumulator);
+                                if (!reduce && accumulator) {
+                                    return accumulator;
+                                }
+                            }
+                            pendingPos = startPos;
+                            pendingEnd = pos;
+                            pendingKind = kind;
+                            pendingHasTrailingNewLine = hasTrailingNewLine;
+                            hasPendingCommentRange = true;
+                        }
+                        continue;
+                    }
+                    break scan;
+                default:
+                    if (ch > 127 && (isWhiteSpaceLike(ch))) {
+                        if (hasPendingCommentRange && isLineBreak(ch)) {
+                            pendingHasTrailingNewLine = true;
+                        }
+                        pos++;
+                        continue;
+                    }
+                    break scan;
+            }
+        }
+        if (hasPendingCommentRange) {
+            accumulator = cb(pendingPos, pendingEnd, pendingKind, pendingHasTrailingNewLine, state, accumulator);
+        }
+        return accumulator;
+    }
+    function forEachLeadingCommentRange(text, pos, cb, state) {
+        return iterateCommentRanges(false, text, pos, false, cb, state);
+    }
+    ts.forEachLeadingCommentRange = forEachLeadingCommentRange;
+    function forEachTrailingCommentRange(text, pos, cb, state) {
+        return iterateCommentRanges(false, text, pos, true, cb, state);
+    }
+    ts.forEachTrailingCommentRange = forEachTrailingCommentRange;
+    function reduceEachLeadingCommentRange(text, pos, cb, state, initial) {
+        return iterateCommentRanges(true, text, pos, false, cb, state, initial);
+    }
+    ts.reduceEachLeadingCommentRange = reduceEachLeadingCommentRange;
+    function reduceEachTrailingCommentRange(text, pos, cb, state, initial) {
+        return iterateCommentRanges(true, text, pos, true, cb, state, initial);
+    }
+    ts.reduceEachTrailingCommentRange = reduceEachTrailingCommentRange;
+    function appendCommentRange(pos, end, kind, hasTrailingNewLine, _state, comments) {
+        if (!comments) {
+            comments = [];
+        }
+        comments.push({ kind: kind, pos: pos, end: end, hasTrailingNewLine: hasTrailingNewLine });
+        return comments;
+    }
+    function getLeadingCommentRanges(text, pos) {
+        return reduceEachLeadingCommentRange(text, pos, appendCommentRange, undefined, undefined);
+    }
+    ts.getLeadingCommentRanges = getLeadingCommentRanges;
+    function getTrailingCommentRanges(text, pos) {
+        return reduceEachTrailingCommentRange(text, pos, appendCommentRange, undefined, undefined);
+    }
+    ts.getTrailingCommentRanges = getTrailingCommentRanges;
+    function getShebang(text) {
+        var match = shebangTriviaRegex.exec(text);
+        if (match) {
+            return match[0];
+        }
+    }
+    ts.getShebang = getShebang;
+    function isIdentifierStart(ch, languageVersion) {
+        return ch >= 65 && ch <= 90 || ch >= 97 && ch <= 122 ||
+            ch === 36 || ch === 95 ||
+            ch > 127 && isUnicodeIdentifierStart(ch, languageVersion);
+    }
+    ts.isIdentifierStart = isIdentifierStart;
+    function isIdentifierPart(ch, languageVersion, identifierVariant) {
+        return ch >= 65 && ch <= 90 || ch >= 97 && ch <= 122 ||
+            ch >= 48 && ch <= 57 || ch === 36 || ch === 95 ||
+            (identifierVariant === 1 ? (ch === 45 || ch === 58) : false) ||
+            ch > 127 && isUnicodeIdentifierPart(ch, languageVersion);
+    }
+    ts.isIdentifierPart = isIdentifierPart;
+    function isIdentifierText(name, languageVersion, identifierVariant) {
+        var ch = codePointAt(name, 0);
+        if (!isIdentifierStart(ch, languageVersion)) {
+            return false;
+        }
+        for (var i = charSize(ch); i < name.length; i += charSize(ch)) {
+            if (!isIdentifierPart(ch = codePointAt(name, i), languageVersion, identifierVariant)) {
+                return false;
+            }
+        }
+        return true;
+    }
+    ts.isIdentifierText = isIdentifierText;
+    function createScanner(languageVersion, skipTrivia, languageVariant, textInitial, onError, start, length) {
+        if (languageVariant === void 0) { languageVariant = 0; }
+        var text = textInitial;
+        var pos;
+        var end;
+        var startPos;
+        var tokenPos;
+        var token;
+        var tokenValue;
+        var tokenFlags;
+        var commentDirectives;
+        var inJSDocType = 0;
+        setText(text, start, length);
+        var scanner = {
+            getStartPos: function () { return startPos; },
+            getTextPos: function () { return pos; },
+            getToken: function () { return token; },
+            getTokenPos: function () { return tokenPos; },
+            getTokenText: function () { return text.substring(tokenPos, pos); },
+            getTokenValue: function () { return tokenValue; },
+            hasUnicodeEscape: function () { return (tokenFlags & 1024) !== 0; },
+            hasExtendedUnicodeEscape: function () { return (tokenFlags & 8) !== 0; },
+            hasPrecedingLineBreak: function () { return (tokenFlags & 1) !== 0; },
+            isIdentifier: function () { return token === 75 || token > 112; },
+            isReservedWord: function () { return token >= 77 && token <= 112; },
+            isUnterminated: function () { return (tokenFlags & 4) !== 0; },
+            getCommentDirectives: function () { return commentDirectives; },
+            getTokenFlags: function () { return tokenFlags; },
+            reScanGreaterToken: reScanGreaterToken,
+            reScanSlashToken: reScanSlashToken,
+            reScanTemplateToken: reScanTemplateToken,
+            reScanTemplateHeadOrNoSubstitutionTemplate: reScanTemplateHeadOrNoSubstitutionTemplate,
+            scanJsxIdentifier: scanJsxIdentifier,
+            scanJsxAttributeValue: scanJsxAttributeValue,
+            reScanJsxAttributeValue: reScanJsxAttributeValue,
+            reScanJsxToken: reScanJsxToken,
+            reScanLessThanToken: reScanLessThanToken,
+            reScanQuestionToken: reScanQuestionToken,
+            scanJsxToken: scanJsxToken,
+            scanJsDocToken: scanJsDocToken,
+            scan: scan,
+            getText: getText,
+            clearCommentDirectives: clearCommentDirectives,
+            setText: setText,
+            setScriptTarget: setScriptTarget,
+            setLanguageVariant: setLanguageVariant,
+            setOnError: setOnError,
+            setTextPos: setTextPos,
+            setInJSDocType: setInJSDocType,
+            tryScan: tryScan,
+            lookAhead: lookAhead,
+            scanRange: scanRange,
+        };
+        if (ts.Debug.isDebugging) {
+            Object.defineProperty(scanner, "__debugShowCurrentPositionInText", {
+                get: function () {
+                    var text = scanner.getText();
+                    return text.slice(0, scanner.getStartPos()) + "â•‘" + text.slice(scanner.getStartPos());
+                },
+            });
+        }
+        return scanner;
+        function error(message, errPos, length) {
+            if (errPos === void 0) { errPos = pos; }
+            if (onError) {
+                var oldPos = pos;
+                pos = errPos;
+                onError(message, length || 0);
+                pos = oldPos;
+            }
+        }
+        function scanNumberFragment() {
+            var start = pos;
+            var allowSeparator = false;
+            var isPreviousTokenSeparator = false;
+            var result = "";
+            while (true) {
+                var ch = text.charCodeAt(pos);
+                if (ch === 95) {
+                    tokenFlags |= 512;
+                    if (allowSeparator) {
+                        allowSeparator = false;
+                        isPreviousTokenSeparator = true;
+                        result += text.substring(start, pos);
+                    }
+                    else if (isPreviousTokenSeparator) {
+                        error(ts.Diagnostics.Multiple_consecutive_numeric_separators_are_not_permitted, pos, 1);
+                    }
+                    else {
+                        error(ts.Diagnostics.Numeric_separators_are_not_allowed_here, pos, 1);
+                    }
+                    pos++;
+                    start = pos;
+                    continue;
+                }
+                if (isDigit(ch)) {
+                    allowSeparator = true;
+                    isPreviousTokenSeparator = false;
+                    pos++;
+                    continue;
+                }
+                break;
+            }
+            if (text.charCodeAt(pos - 1) === 95) {
+                error(ts.Diagnostics.Numeric_separators_are_not_allowed_here, pos - 1, 1);
+            }
+            return result + text.substring(start, pos);
+        }
+        function scanNumber() {
+            var start = pos;
+            var mainFragment = scanNumberFragment();
+            var decimalFragment;
+            var scientificFragment;
+            if (text.charCodeAt(pos) === 46) {
+                pos++;
+                decimalFragment = scanNumberFragment();
+            }
+            var end = pos;
+            if (text.charCodeAt(pos) === 69 || text.charCodeAt(pos) === 101) {
+                pos++;
+                tokenFlags |= 16;
+                if (text.charCodeAt(pos) === 43 || text.charCodeAt(pos) === 45)
+                    pos++;
+                var preNumericPart = pos;
+                var finalFragment = scanNumberFragment();
+                if (!finalFragment) {
+                    error(ts.Diagnostics.Digit_expected);
+                }
+                else {
+                    scientificFragment = text.substring(end, preNumericPart) + finalFragment;
+                    end = pos;
+                }
+            }
+            var result;
+            if (tokenFlags & 512) {
+                result = mainFragment;
+                if (decimalFragment) {
+                    result += "." + decimalFragment;
+                }
+                if (scientificFragment) {
+                    result += scientificFragment;
+                }
+            }
+            else {
+                result = text.substring(start, end);
+            }
+            if (decimalFragment !== undefined || tokenFlags & 16) {
+                checkForIdentifierStartAfterNumericLiteral(start, decimalFragment === undefined && !!(tokenFlags & 16));
+                return {
+                    type: 8,
+                    value: "" + +result
+                };
+            }
+            else {
+                tokenValue = result;
+                var type = checkBigIntSuffix();
+                checkForIdentifierStartAfterNumericLiteral(start);
+                return { type: type, value: tokenValue };
+            }
+        }
+        function checkForIdentifierStartAfterNumericLiteral(numericStart, isScientific) {
+            if (!isIdentifierStart(codePointAt(text, pos), languageVersion)) {
+                return;
+            }
+            var identifierStart = pos;
+            var length = scanIdentifierParts().length;
+            if (length === 1 && text[identifierStart] === "n") {
+                if (isScientific) {
+                    error(ts.Diagnostics.A_bigint_literal_cannot_use_exponential_notation, numericStart, identifierStart - numericStart + 1);
+                }
+                else {
+                    error(ts.Diagnostics.A_bigint_literal_must_be_an_integer, numericStart, identifierStart - numericStart + 1);
+                }
+            }
+            else {
+                error(ts.Diagnostics.An_identifier_or_keyword_cannot_immediately_follow_a_numeric_literal, identifierStart, length);
+                pos = identifierStart;
+            }
+        }
+        function scanOctalDigits() {
+            var start = pos;
+            while (isOctalDigit(text.charCodeAt(pos))) {
+                pos++;
+            }
+            return +(text.substring(start, pos));
+        }
+        function scanExactNumberOfHexDigits(count, canHaveSeparators) {
+            var valueString = scanHexDigits(count, false, canHaveSeparators);
+            return valueString ? parseInt(valueString, 16) : -1;
+        }
+        function scanMinimumNumberOfHexDigits(count, canHaveSeparators) {
+            return scanHexDigits(count, true, canHaveSeparators);
+        }
+        function scanHexDigits(minCount, scanAsManyAsPossible, canHaveSeparators) {
+            var valueChars = [];
+            var allowSeparator = false;
+            var isPreviousTokenSeparator = false;
+            while (valueChars.length < minCount || scanAsManyAsPossible) {
+                var ch = text.charCodeAt(pos);
+                if (canHaveSeparators && ch === 95) {
+                    tokenFlags |= 512;
+                    if (allowSeparator) {
+                        allowSeparator = false;
+                        isPreviousTokenSeparator = true;
+                    }
+                    else if (isPreviousTokenSeparator) {
+                        error(ts.Diagnostics.Multiple_consecutive_numeric_separators_are_not_permitted, pos, 1);
+                    }
+                    else {
+                        error(ts.Diagnostics.Numeric_separators_are_not_allowed_here, pos, 1);
+                    }
+                    pos++;
+                    continue;
+                }
+                allowSeparator = canHaveSeparators;
+                if (ch >= 65 && ch <= 70) {
+                    ch += 97 - 65;
+                }
+                else if (!((ch >= 48 && ch <= 57) ||
+                    (ch >= 97 && ch <= 102))) {
+                    break;
+                }
+                valueChars.push(ch);
+                pos++;
+                isPreviousTokenSeparator = false;
+            }
+            if (valueChars.length < minCount) {
+                valueChars = [];
+            }
+            if (text.charCodeAt(pos - 1) === 95) {
+                error(ts.Diagnostics.Numeric_separators_are_not_allowed_here, pos - 1, 1);
+            }
+            return String.fromCharCode.apply(String, valueChars);
+        }
+        function scanString(jsxAttributeString) {
+            if (jsxAttributeString === void 0) { jsxAttributeString = false; }
+            var quote = text.charCodeAt(pos);
+            pos++;
+            var result = "";
+            var start = pos;
+            while (true) {
+                if (pos >= end) {
+                    result += text.substring(start, pos);
+                    tokenFlags |= 4;
+                    error(ts.Diagnostics.Unterminated_string_literal);
+                    break;
+                }
+                var ch = text.charCodeAt(pos);
+                if (ch === quote) {
+                    result += text.substring(start, pos);
+                    pos++;
+                    break;
+                }
+                if (ch === 92 && !jsxAttributeString) {
+                    result += text.substring(start, pos);
+                    result += scanEscapeSequence();
+                    start = pos;
+                    continue;
+                }
+                if (isLineBreak(ch) && !jsxAttributeString) {
+                    result += text.substring(start, pos);
+                    tokenFlags |= 4;
+                    error(ts.Diagnostics.Unterminated_string_literal);
+                    break;
+                }
+                pos++;
+            }
+            return result;
+        }
+        function scanTemplateAndSetTokenValue(isTaggedTemplate) {
+            var startedWithBacktick = text.charCodeAt(pos) === 96;
+            pos++;
+            var start = pos;
+            var contents = "";
+            var resultingToken;
+            while (true) {
+                if (pos >= end) {
+                    contents += text.substring(start, pos);
+                    tokenFlags |= 4;
+                    error(ts.Diagnostics.Unterminated_template_literal);
+                    resultingToken = startedWithBacktick ? 14 : 17;
+                    break;
+                }
+                var currChar = text.charCodeAt(pos);
+                if (currChar === 96) {
+                    contents += text.substring(start, pos);
+                    pos++;
+                    resultingToken = startedWithBacktick ? 14 : 17;
+                    break;
+                }
+                if (currChar === 36 && pos + 1 < end && text.charCodeAt(pos + 1) === 123) {
+                    contents += text.substring(start, pos);
+                    pos += 2;
+                    resultingToken = startedWithBacktick ? 15 : 16;
+                    break;
+                }
+                if (currChar === 92) {
+                    contents += text.substring(start, pos);
+                    contents += scanEscapeSequence(isTaggedTemplate);
+                    start = pos;
+                    continue;
+                }
+                if (currChar === 13) {
+                    contents += text.substring(start, pos);
+                    pos++;
+                    if (pos < end && text.charCodeAt(pos) === 10) {
+                        pos++;
+                    }
+                    contents += "\n";
+                    start = pos;
+                    continue;
+                }
+                pos++;
+            }
+            ts.Debug.assert(resultingToken !== undefined);
+            tokenValue = contents;
+            return resultingToken;
+        }
+        function scanEscapeSequence(isTaggedTemplate) {
+            var start = pos;
+            pos++;
+            if (pos >= end) {
+                error(ts.Diagnostics.Unexpected_end_of_text);
+                return "";
+            }
+            var ch = text.charCodeAt(pos);
+            pos++;
+            switch (ch) {
+                case 48:
+                    if (isTaggedTemplate && pos < end && isDigit(text.charCodeAt(pos))) {
+                        pos++;
+                        tokenFlags |= 2048;
+                        return text.substring(start, pos);
+                    }
+                    return "\0";
+                case 98:
+                    return "\b";
+                case 116:
+                    return "\t";
+                case 110:
+                    return "\n";
+                case 118:
+                    return "\v";
+                case 102:
+                    return "\f";
+                case 114:
+                    return "\r";
+                case 39:
+                    return "\'";
+                case 34:
+                    return "\"";
+                case 117:
+                    if (isTaggedTemplate) {
+                        for (var escapePos = pos; escapePos < pos + 4; escapePos++) {
+                            if (escapePos < end && !isHexDigit(text.charCodeAt(escapePos)) && text.charCodeAt(escapePos) !== 123) {
+                                pos = escapePos;
+                                tokenFlags |= 2048;
+                                return text.substring(start, pos);
+                            }
+                        }
+                    }
+                    if (pos < end && text.charCodeAt(pos) === 123) {
+                        pos++;
+                        if (isTaggedTemplate && !isHexDigit(text.charCodeAt(pos))) {
+                            tokenFlags |= 2048;
+                            return text.substring(start, pos);
+                        }
+                        if (isTaggedTemplate) {
+                            var savePos = pos;
+                            var escapedValueString = scanMinimumNumberOfHexDigits(1, false);
+                            var escapedValue = escapedValueString ? parseInt(escapedValueString, 16) : -1;
+                            if (!isCodePoint(escapedValue) || text.charCodeAt(pos) !== 125) {
+                                tokenFlags |= 2048;
+                                return text.substring(start, pos);
+                            }
+                            else {
+                                pos = savePos;
+                            }
+                        }
+                        tokenFlags |= 8;
+                        return scanExtendedUnicodeEscape();
+                    }
+                    tokenFlags |= 1024;
+                    return scanHexadecimalEscape(4);
+                case 120:
+                    if (isTaggedTemplate) {
+                        if (!isHexDigit(text.charCodeAt(pos))) {
+                            tokenFlags |= 2048;
+                            return text.substring(start, pos);
+                        }
+                        else if (!isHexDigit(text.charCodeAt(pos + 1))) {
+                            pos++;
+                            tokenFlags |= 2048;
+                            return text.substring(start, pos);
+                        }
+                    }
+                    return scanHexadecimalEscape(2);
+                case 13:
+                    if (pos < end && text.charCodeAt(pos) === 10) {
+                        pos++;
+                    }
+                case 10:
+                case 8232:
+                case 8233:
+                    return "";
+                default:
+                    return String.fromCharCode(ch);
+            }
+        }
+        function scanHexadecimalEscape(numDigits) {
+            var escapedValue = scanExactNumberOfHexDigits(numDigits, false);
+            if (escapedValue >= 0) {
+                return String.fromCharCode(escapedValue);
+            }
+            else {
+                error(ts.Diagnostics.Hexadecimal_digit_expected);
+                return "";
+            }
+        }
+        function scanExtendedUnicodeEscape() {
+            var escapedValueString = scanMinimumNumberOfHexDigits(1, false);
+            var escapedValue = escapedValueString ? parseInt(escapedValueString, 16) : -1;
+            var isInvalidExtendedEscape = false;
+            if (escapedValue < 0) {
+                error(ts.Diagnostics.Hexadecimal_digit_expected);
+                isInvalidExtendedEscape = true;
+            }
+            else if (escapedValue > 0x10FFFF) {
+                error(ts.Diagnostics.An_extended_Unicode_escape_value_must_be_between_0x0_and_0x10FFFF_inclusive);
+                isInvalidExtendedEscape = true;
+            }
+            if (pos >= end) {
+                error(ts.Diagnostics.Unexpected_end_of_text);
+                isInvalidExtendedEscape = true;
+            }
+            else if (text.charCodeAt(pos) === 125) {
+                pos++;
+            }
+            else {
+                error(ts.Diagnostics.Unterminated_Unicode_escape_sequence);
+                isInvalidExtendedEscape = true;
+            }
+            if (isInvalidExtendedEscape) {
+                return "";
+            }
+            return utf16EncodeAsString(escapedValue);
+        }
+        function peekUnicodeEscape() {
+            if (pos + 5 < end && text.charCodeAt(pos + 1) === 117) {
+                var start_1 = pos;
+                pos += 2;
+                var value = scanExactNumberOfHexDigits(4, false);
+                pos = start_1;
+                return value;
+            }
+            return -1;
+        }
+        function peekExtendedUnicodeEscape() {
+            if (languageVersion >= 2 && codePointAt(text, pos + 1) === 117 && codePointAt(text, pos + 2) === 123) {
+                var start_2 = pos;
+                pos += 3;
+                var escapedValueString = scanMinimumNumberOfHexDigits(1, false);
+                var escapedValue = escapedValueString ? parseInt(escapedValueString, 16) : -1;
+                pos = start_2;
+                return escapedValue;
+            }
+            return -1;
+        }
+        function scanIdentifierParts() {
+            var result = "";
+            var start = pos;
+            while (pos < end) {
+                var ch = codePointAt(text, pos);
+                if (isIdentifierPart(ch, languageVersion)) {
+                    pos += charSize(ch);
+                }
+                else if (ch === 92) {
+                    ch = peekExtendedUnicodeEscape();
+                    if (ch >= 0 && isIdentifierPart(ch, languageVersion)) {
+                        pos += 3;
+                        tokenFlags |= 8;
+                        result += scanExtendedUnicodeEscape();
+                        start = pos;
+                        continue;
+                    }
+                    ch = peekUnicodeEscape();
+                    if (!(ch >= 0 && isIdentifierPart(ch, languageVersion))) {
+                        break;
+                    }
+                    tokenFlags |= 1024;
+                    result += text.substring(start, pos);
+                    result += utf16EncodeAsString(ch);
+                    pos += 6;
+                    start = pos;
+                }
+                else {
+                    break;
+                }
+            }
+            result += text.substring(start, pos);
+            return result;
+        }
+        function getIdentifierToken() {
+            var len = tokenValue.length;
+            if (len >= 2 && len <= 11) {
+                var ch = tokenValue.charCodeAt(0);
+                if (ch >= 97 && ch <= 122) {
+                    var keyword = textToKeyword.get(tokenValue);
+                    if (keyword !== undefined) {
+                        return token = keyword;
+                    }
+                }
+            }
+            return token = 75;
+        }
+        function scanBinaryOrOctalDigits(base) {
+            var value = "";
+            var separatorAllowed = false;
+            var isPreviousTokenSeparator = false;
+            while (true) {
+                var ch = text.charCodeAt(pos);
+                if (ch === 95) {
+                    tokenFlags |= 512;
+                    if (separatorAllowed) {
+                        separatorAllowed = false;
+                        isPreviousTokenSeparator = true;
+                    }
+                    else if (isPreviousTokenSeparator) {
+                        error(ts.Diagnostics.Multiple_consecutive_numeric_separators_are_not_permitted, pos, 1);
+                    }
+                    else {
+                        error(ts.Diagnostics.Numeric_separators_are_not_allowed_here, pos, 1);
+                    }
+                    pos++;
+                    continue;
+                }
+                separatorAllowed = true;
+                if (!isDigit(ch) || ch - 48 >= base) {
+                    break;
+                }
+                value += text[pos];
+                pos++;
+                isPreviousTokenSeparator = false;
+            }
+            if (text.charCodeAt(pos - 1) === 95) {
+                error(ts.Diagnostics.Numeric_separators_are_not_allowed_here, pos - 1, 1);
+            }
+            return value;
+        }
+        function checkBigIntSuffix() {
+            if (text.charCodeAt(pos) === 110) {
+                tokenValue += "n";
+                if (tokenFlags & 384) {
+                    tokenValue = ts.parsePseudoBigInt(tokenValue) + "n";
+                }
+                pos++;
+                return 9;
+            }
+            else {
+                var numericValue = tokenFlags & 128
+                    ? parseInt(tokenValue.slice(2), 2)
+                    : tokenFlags & 256
+                        ? parseInt(tokenValue.slice(2), 8)
+                        : +tokenValue;
+                tokenValue = "" + numericValue;
+                return 8;
+            }
+        }
+        function scan() {
+            var _a;
+            startPos = pos;
+            tokenFlags = 0;
+            var asteriskSeen = false;
+            while (true) {
+                tokenPos = pos;
+                if (pos >= end) {
+                    return token = 1;
+                }
+                var ch = codePointAt(text, pos);
+                if (ch === 35 && pos === 0 && isShebangTrivia(text, pos)) {
+                    pos = scanShebangTrivia(text, pos);
+                    if (skipTrivia) {
+                        continue;
+                    }
+                    else {
+                        return token = 6;
+                    }
+                }
+                switch (ch) {
+                    case 10:
+                    case 13:
+                        tokenFlags |= 1;
+                        if (skipTrivia) {
+                            pos++;
+                            continue;
+                        }
+                        else {
+                            if (ch === 13 && pos + 1 < end && text.charCodeAt(pos + 1) === 10) {
+                                pos += 2;
+                            }
+                            else {
+                                pos++;
+                            }
+                            return token = 4;
+                        }
+                    case 9:
+                    case 11:
+                    case 12:
+                    case 32:
+                    case 160:
+                    case 5760:
+                    case 8192:
+                    case 8193:
+                    case 8194:
+                    case 8195:
+                    case 8196:
+                    case 8197:
+                    case 8198:
+                    case 8199:
+                    case 8200:
+                    case 8201:
+                    case 8202:
+                    case 8203:
+                    case 8239:
+                    case 8287:
+                    case 12288:
+                    case 65279:
+                        if (skipTrivia) {
+                            pos++;
+                            continue;
+                        }
+                        else {
+                            while (pos < end && isWhiteSpaceSingleLine(text.charCodeAt(pos))) {
+                                pos++;
+                            }
+                            return token = 5;
+                        }
+                    case 33:
+                        if (text.charCodeAt(pos + 1) === 61) {
+                            if (text.charCodeAt(pos + 2) === 61) {
+                                return pos += 3, token = 37;
+                            }
+                            return pos += 2, token = 35;
+                        }
+                        pos++;
+                        return token = 53;
+                    case 34:
+                    case 39:
+                        tokenValue = scanString();
+                        return token = 10;
+                    case 96:
+                        return token = scanTemplateAndSetTokenValue(false);
+                    case 37:
+                        if (text.charCodeAt(pos + 1) === 61) {
+                            return pos += 2, token = 68;
+                        }
+                        pos++;
+                        return token = 44;
+                    case 38:
+                        if (text.charCodeAt(pos + 1) === 38) {
+                            return pos += 2, token = 55;
+                        }
+                        if (text.charCodeAt(pos + 1) === 61) {
+                            return pos += 2, token = 72;
+                        }
+                        pos++;
+                        return token = 50;
+                    case 40:
+                        pos++;
+                        return token = 20;
+                    case 41:
+                        pos++;
+                        return token = 21;
+                    case 42:
+                        if (text.charCodeAt(pos + 1) === 61) {
+                            return pos += 2, token = 65;
+                        }
+                        if (text.charCodeAt(pos + 1) === 42) {
+                            if (text.charCodeAt(pos + 2) === 61) {
+                                return pos += 3, token = 66;
+                            }
+                            return pos += 2, token = 42;
+                        }
+                        pos++;
+                        if (inJSDocType && !asteriskSeen && (tokenFlags & 1)) {
+                            asteriskSeen = true;
+                            continue;
+                        }
+                        return token = 41;
+                    case 43:
+                        if (text.charCodeAt(pos + 1) === 43) {
+                            return pos += 2, token = 45;
+                        }
+                        if (text.charCodeAt(pos + 1) === 61) {
+                            return pos += 2, token = 63;
+                        }
+                        pos++;
+                        return token = 39;
+                    case 44:
+                        pos++;
+                        return token = 27;
+                    case 45:
+                        if (text.charCodeAt(pos + 1) === 45) {
+                            return pos += 2, token = 46;
+                        }
+                        if (text.charCodeAt(pos + 1) === 61) {
+                            return pos += 2, token = 64;
+                        }
+                        pos++;
+                        return token = 40;
+                    case 46:
+                        if (isDigit(text.charCodeAt(pos + 1))) {
+                            tokenValue = scanNumber().value;
+                            return token = 8;
+                        }
+                        if (text.charCodeAt(pos + 1) === 46 && text.charCodeAt(pos + 2) === 46) {
+                            return pos += 3, token = 25;
+                        }
+                        pos++;
+                        return token = 24;
+                    case 47:
+                        if (text.charCodeAt(pos + 1) === 47) {
+                            pos += 2;
+                            while (pos < end) {
+                                if (isLineBreak(text.charCodeAt(pos))) {
+                                    break;
+                                }
+                                pos++;
+                            }
+                            commentDirectives = appendIfCommentDirective(commentDirectives, text.slice(tokenPos, pos), commentDirectiveRegExSingleLine, tokenPos);
+                            if (skipTrivia) {
+                                continue;
+                            }
+                            else {
+                                return token = 2;
+                            }
+                        }
+                        if (text.charCodeAt(pos + 1) === 42) {
+                            pos += 2;
+                            if (text.charCodeAt(pos) === 42 && text.charCodeAt(pos + 1) !== 47) {
+                                tokenFlags |= 2;
+                            }
+                            var commentClosed = false;
+                            var lastLineStart = tokenPos;
+                            while (pos < end) {
+                                var ch_1 = text.charCodeAt(pos);
+                                if (ch_1 === 42 && text.charCodeAt(pos + 1) === 47) {
+                                    pos += 2;
+                                    commentClosed = true;
+                                    break;
+                                }
+                                pos++;
+                                if (isLineBreak(ch_1)) {
+                                    lastLineStart = pos;
+                                    tokenFlags |= 1;
+                                }
+                            }
+                            commentDirectives = appendIfCommentDirective(commentDirectives, text.slice(lastLineStart, pos), commentDirectiveRegExMultiLine, lastLineStart);
+                            if (!commentClosed) {
+                                error(ts.Diagnostics.Asterisk_Slash_expected);
+                            }
+                            if (skipTrivia) {
+                                continue;
+                            }
+                            else {
+                                if (!commentClosed) {
+                                    tokenFlags |= 4;
+                                }
+                                return token = 3;
+                            }
+                        }
+                        if (text.charCodeAt(pos + 1) === 61) {
+                            return pos += 2, token = 67;
+                        }
+                        pos++;
+                        return token = 43;
+                    case 48:
+                        if (pos + 2 < end && (text.charCodeAt(pos + 1) === 88 || text.charCodeAt(pos + 1) === 120)) {
+                            pos += 2;
+                            tokenValue = scanMinimumNumberOfHexDigits(1, true);
+                            if (!tokenValue) {
+                                error(ts.Diagnostics.Hexadecimal_digit_expected);
+                                tokenValue = "0";
+                            }
+                            tokenValue = "0x" + tokenValue;
+                            tokenFlags |= 64;
+                            return token = checkBigIntSuffix();
+                        }
+                        else if (pos + 2 < end && (text.charCodeAt(pos + 1) === 66 || text.charCodeAt(pos + 1) === 98)) {
+                            pos += 2;
+                            tokenValue = scanBinaryOrOctalDigits(2);
+                            if (!tokenValue) {
+                                error(ts.Diagnostics.Binary_digit_expected);
+                                tokenValue = "0";
+                            }
+                            tokenValue = "0b" + tokenValue;
+                            tokenFlags |= 128;
+                            return token = checkBigIntSuffix();
+                        }
+                        else if (pos + 2 < end && (text.charCodeAt(pos + 1) === 79 || text.charCodeAt(pos + 1) === 111)) {
+                            pos += 2;
+                            tokenValue = scanBinaryOrOctalDigits(8);
+                            if (!tokenValue) {
+                                error(ts.Diagnostics.Octal_digit_expected);
+                                tokenValue = "0";
+                            }
+                            tokenValue = "0o" + tokenValue;
+                            tokenFlags |= 256;
+                            return token = checkBigIntSuffix();
+                        }
+                        if (pos + 1 < end && isOctalDigit(text.charCodeAt(pos + 1))) {
+                            tokenValue = "" + scanOctalDigits();
+                            tokenFlags |= 32;
+                            return token = 8;
+                        }
+                    case 49:
+                    case 50:
+                    case 51:
+                    case 52:
+                    case 53:
+                    case 54:
+                    case 55:
+                    case 56:
+                    case 57:
+                        (_a = scanNumber(), token = _a.type, tokenValue = _a.value);
+                        return token;
+                    case 58:
+                        pos++;
+                        return token = 58;
+                    case 59:
+                        pos++;
+                        return token = 26;
+                    case 60:
+                        if (isConflictMarkerTrivia(text, pos)) {
+                            pos = scanConflictMarkerTrivia(text, pos, error);
+                            if (skipTrivia) {
+                                continue;
+                            }
+                            else {
+                                return token = 7;
+                            }
+                        }
+                        if (text.charCodeAt(pos + 1) === 60) {
+                            if (text.charCodeAt(pos + 2) === 61) {
+                                return pos += 3, token = 69;
+                            }
+                            return pos += 2, token = 47;
+                        }
+                        if (text.charCodeAt(pos + 1) === 61) {
+                            return pos += 2, token = 32;
+                        }
+                        if (languageVariant === 1 &&
+                            text.charCodeAt(pos + 1) === 47 &&
+                            text.charCodeAt(pos + 2) !== 42) {
+                            return pos += 2, token = 30;
+                        }
+                        pos++;
+                        return token = 29;
+                    case 61:
+                        if (isConflictMarkerTrivia(text, pos)) {
+                            pos = scanConflictMarkerTrivia(text, pos, error);
+                            if (skipTrivia) {
+                                continue;
+                            }
+                            else {
+                                return token = 7;
+                            }
+                        }
+                        if (text.charCodeAt(pos + 1) === 61) {
+                            if (text.charCodeAt(pos + 2) === 61) {
+                                return pos += 3, token = 36;
+                            }
+                            return pos += 2, token = 34;
+                        }
+                        if (text.charCodeAt(pos + 1) === 62) {
+                            return pos += 2, token = 38;
+                        }
+                        pos++;
+                        return token = 62;
+                    case 62:
+                        if (isConflictMarkerTrivia(text, pos)) {
+                            pos = scanConflictMarkerTrivia(text, pos, error);
+                            if (skipTrivia) {
+                                continue;
+                            }
+                            else {
+                                return token = 7;
+                            }
+                        }
+                        pos++;
+                        return token = 31;
+                    case 63:
+                        pos++;
+                        if (text.charCodeAt(pos) === 46 && !isDigit(text.charCodeAt(pos + 1))) {
+                            pos++;
+                            return token = 28;
+                        }
+                        if (text.charCodeAt(pos) === 63) {
+                            pos++;
+                            return token = 60;
+                        }
+                        return token = 57;
+                    case 91:
+                        pos++;
+                        return token = 22;
+                    case 93:
+                        pos++;
+                        return token = 23;
+                    case 94:
+                        if (text.charCodeAt(pos + 1) === 61) {
+                            return pos += 2, token = 74;
+                        }
+                        pos++;
+                        return token = 52;
+                    case 123:
+                        pos++;
+                        return token = 18;
+                    case 124:
+                        if (isConflictMarkerTrivia(text, pos)) {
+                            pos = scanConflictMarkerTrivia(text, pos, error);
+                            if (skipTrivia) {
+                                continue;
+                            }
+                            else {
+                                return token = 7;
+                            }
+                        }
+                        if (text.charCodeAt(pos + 1) === 124) {
+                            return pos += 2, token = 56;
+                        }
+                        if (text.charCodeAt(pos + 1) === 61) {
+                            return pos += 2, token = 73;
+                        }
+                        pos++;
+                        return token = 51;
+                    case 125:
+                        pos++;
+                        return token = 19;
+                    case 126:
+                        pos++;
+                        return token = 54;
+                    case 64:
+                        pos++;
+                        return token = 59;
+                    case 92:
+                        var extendedCookedChar = peekExtendedUnicodeEscape();
+                        if (extendedCookedChar >= 0 && isIdentifierStart(extendedCookedChar, languageVersion)) {
+                            pos += 3;
+                            tokenFlags |= 8;
+                            tokenValue = scanExtendedUnicodeEscape() + scanIdentifierParts();
+                            return token = getIdentifierToken();
+                        }
+                        var cookedChar = peekUnicodeEscape();
+                        if (cookedChar >= 0 && isIdentifierStart(cookedChar, languageVersion)) {
+                            pos += 6;
+                            tokenFlags |= 1024;
+                            tokenValue = String.fromCharCode(cookedChar) + scanIdentifierParts();
+                            return token = getIdentifierToken();
+                        }
+                        error(ts.Diagnostics.Invalid_character);
+                        pos++;
+                        return token = 0;
+                    case 35:
+                        if (pos !== 0 && text[pos + 1] === "!") {
+                            error(ts.Diagnostics.can_only_be_used_at_the_start_of_a_file);
+                            pos++;
+                            return token = 0;
+                        }
+                        pos++;
+                        if (isIdentifierStart(ch = text.charCodeAt(pos), languageVersion)) {
+                            pos++;
+                            while (pos < end && isIdentifierPart(ch = text.charCodeAt(pos), languageVersion))
+                                pos++;
+                            tokenValue = text.substring(tokenPos, pos);
+                            if (ch === 92) {
+                                tokenValue += scanIdentifierParts();
+                            }
+                        }
+                        else {
+                            tokenValue = "#";
+                            error(ts.Diagnostics.Invalid_character);
+                        }
+                        return token = 76;
+                    default:
+                        if (isIdentifierStart(ch, languageVersion)) {
+                            pos += charSize(ch);
+                            while (pos < end && isIdentifierPart(ch = codePointAt(text, pos), languageVersion))
+                                pos += charSize(ch);
+                            tokenValue = text.substring(tokenPos, pos);
+                            if (ch === 92) {
+                                tokenValue += scanIdentifierParts();
+                            }
+                            return token = getIdentifierToken();
+                        }
+                        else if (isWhiteSpaceSingleLine(ch)) {
+                            pos += charSize(ch);
+                            continue;
+                        }
+                        else if (isLineBreak(ch)) {
+                            tokenFlags |= 1;
+                            pos += charSize(ch);
+                            continue;
+                        }
+                        error(ts.Diagnostics.Invalid_character);
+                        pos += charSize(ch);
+                        return token = 0;
+                }
+            }
+        }
+        function reScanGreaterToken() {
+            if (token === 31) {
+                if (text.charCodeAt(pos) === 62) {
+                    if (text.charCodeAt(pos + 1) === 62) {
+                        if (text.charCodeAt(pos + 2) === 61) {
+                            return pos += 3, token = 71;
+                        }
+                        return pos += 2, token = 49;
+                    }
+                    if (text.charCodeAt(pos + 1) === 61) {
+                        return pos += 2, token = 70;
+                    }
+                    pos++;
+                    return token = 48;
+                }
+                if (text.charCodeAt(pos) === 61) {
+                    pos++;
+                    return token = 33;
+                }
+            }
+            return token;
+        }
+        function reScanSlashToken() {
+            if (token === 43 || token === 67) {
+                var p = tokenPos + 1;
+                var inEscape = false;
+                var inCharacterClass = false;
+                while (true) {
+                    if (p >= end) {
+                        tokenFlags |= 4;
+                        error(ts.Diagnostics.Unterminated_regular_expression_literal);
+                        break;
+                    }
+                    var ch = text.charCodeAt(p);
+                    if (isLineBreak(ch)) {
+                        tokenFlags |= 4;
+                        error(ts.Diagnostics.Unterminated_regular_expression_literal);
+                        break;
+                    }
+                    if (inEscape) {
+                        inEscape = false;
+                    }
+                    else if (ch === 47 && !inCharacterClass) {
+                        p++;
+                        break;
+                    }
+                    else if (ch === 91) {
+                        inCharacterClass = true;
+                    }
+                    else if (ch === 92) {
+                        inEscape = true;
+                    }
+                    else if (ch === 93) {
+                        inCharacterClass = false;
+                    }
+                    p++;
+                }
+                while (p < end && isIdentifierPart(text.charCodeAt(p), languageVersion)) {
+                    p++;
+                }
+                pos = p;
+                tokenValue = text.substring(tokenPos, pos);
+                token = 13;
+            }
+            return token;
+        }
+        function appendIfCommentDirective(commentDirectives, text, commentDirectiveRegEx, lineStart) {
+            var type = getDirectiveFromComment(text, commentDirectiveRegEx);
+            if (type === undefined) {
+                return commentDirectives;
+            }
+            return ts.append(commentDirectives, {
+                range: { pos: lineStart, end: pos },
+                type: type,
+            });
+        }
+        function getDirectiveFromComment(text, commentDirectiveRegEx) {
+            var match = commentDirectiveRegEx.exec(text);
+            if (!match) {
+                return undefined;
+            }
+            switch (match[1]) {
+                case "ts-expect-error":
+                    return 0;
+                case "ts-ignore":
+                    return 1;
+            }
+            return undefined;
+        }
+        function reScanTemplateToken(isTaggedTemplate) {
+            ts.Debug.assert(token === 19, "'reScanTemplateToken' should only be called on a '}'");
+            pos = tokenPos;
+            return token = scanTemplateAndSetTokenValue(isTaggedTemplate);
+        }
+        function reScanTemplateHeadOrNoSubstitutionTemplate() {
+            pos = tokenPos;
+            return token = scanTemplateAndSetTokenValue(true);
+        }
+        function reScanJsxToken() {
+            pos = tokenPos = startPos;
+            return token = scanJsxToken();
+        }
+        function reScanLessThanToken() {
+            if (token === 47) {
+                pos = tokenPos + 1;
+                return token = 29;
+            }
+            return token;
+        }
+        function reScanQuestionToken() {
+            ts.Debug.assert(token === 60, "'reScanQuestionToken' should only be called on a '??'");
+            pos = tokenPos + 1;
+            return token = 57;
+        }
+        function scanJsxToken() {
+            startPos = tokenPos = pos;
+            if (pos >= end) {
+                return token = 1;
+            }
+            var char = text.charCodeAt(pos);
+            if (char === 60) {
+                if (text.charCodeAt(pos + 1) === 47) {
+                    pos += 2;
+                    return token = 30;
+                }
+                pos++;
+                return token = 29;
+            }
+            if (char === 123) {
+                pos++;
+                return token = 18;
+            }
+            var firstNonWhitespace = 0;
+            var lastNonWhitespace = -1;
+            while (pos < end) {
+                if (!isWhiteSpaceSingleLine(char)) {
+                    lastNonWhitespace = pos;
+                }
+                char = text.charCodeAt(pos);
+                if (char === 123) {
+                    break;
+                }
+                if (char === 60) {
+                    if (isConflictMarkerTrivia(text, pos)) {
+                        pos = scanConflictMarkerTrivia(text, pos, error);
+                        return token = 7;
+                    }
+                    break;
+                }
+                if (char === 62) {
+                    error(ts.Diagnostics.Unexpected_token_Did_you_mean_or_gt, pos, 1);
+                }
+                if (char === 125) {
+                    error(ts.Diagnostics.Unexpected_token_Did_you_mean_or_rbrace, pos, 1);
+                }
+                if (lastNonWhitespace > 0)
+                    lastNonWhitespace++;
+                if (isLineBreak(char) && firstNonWhitespace === 0) {
+                    firstNonWhitespace = -1;
+                }
+                else if (!isWhiteSpaceLike(char)) {
+                    firstNonWhitespace = pos;
+                }
+                pos++;
+            }
+            var endPosition = lastNonWhitespace === -1 ? pos : lastNonWhitespace;
+            tokenValue = text.substring(startPos, endPosition);
+            return firstNonWhitespace === -1 ? 12 : 11;
+        }
+        function scanJsxIdentifier() {
+            if (tokenIsIdentifierOrKeyword(token)) {
+                while (pos < end) {
+                    var ch = text.charCodeAt(pos);
+                    if (ch === 45) {
+                        tokenValue += "-";
+                        pos++;
+                        continue;
+                    }
+                    var oldPos = pos;
+                    tokenValue += scanIdentifierParts();
+                    if (pos === oldPos) {
+                        break;
+                    }
+                }
+            }
+            return token;
+        }
+        function scanJsxAttributeValue() {
+            startPos = pos;
+            switch (text.charCodeAt(pos)) {
+                case 34:
+                case 39:
+                    tokenValue = scanString(true);
+                    return token = 10;
+                default:
+                    return scan();
+            }
+        }
+        function reScanJsxAttributeValue() {
+            pos = tokenPos = startPos;
+            return scanJsxAttributeValue();
+        }
+        function scanJsDocToken() {
+            startPos = tokenPos = pos;
+            tokenFlags = 0;
+            if (pos >= end) {
+                return token = 1;
+            }
+            var ch = codePointAt(text, pos);
+            pos += charSize(ch);
+            switch (ch) {
+                case 9:
+                case 11:
+                case 12:
+                case 32:
+                    while (pos < end && isWhiteSpaceSingleLine(text.charCodeAt(pos))) {
+                        pos++;
+                    }
+                    return token = 5;
+                case 64:
+                    return token = 59;
+                case 10:
+                case 13:
+                    tokenFlags |= 1;
+                    return token = 4;
+                case 42:
+                    return token = 41;
+                case 123:
+                    return token = 18;
+                case 125:
+                    return token = 19;
+                case 91:
+                    return token = 22;
+                case 93:
+                    return token = 23;
+                case 60:
+                    return token = 29;
+                case 62:
+                    return token = 31;
+                case 61:
+                    return token = 62;
+                case 44:
+                    return token = 27;
+                case 46:
+                    return token = 24;
+                case 96:
+                    return token = 61;
+                case 92:
+                    pos--;
+                    var extendedCookedChar = peekExtendedUnicodeEscape();
+                    if (extendedCookedChar >= 0 && isIdentifierStart(extendedCookedChar, languageVersion)) {
+                        pos += 3;
+                        tokenFlags |= 8;
+                        tokenValue = scanExtendedUnicodeEscape() + scanIdentifierParts();
+                        return token = getIdentifierToken();
+                    }
+                    var cookedChar = peekUnicodeEscape();
+                    if (cookedChar >= 0 && isIdentifierStart(cookedChar, languageVersion)) {
+                        pos += 6;
+                        tokenFlags |= 1024;
+                        tokenValue = String.fromCharCode(cookedChar) + scanIdentifierParts();
+                        return token = getIdentifierToken();
+                    }
+                    pos++;
+                    return token = 0;
+            }
+            if (isIdentifierStart(ch, languageVersion)) {
+                var char = ch;
+                while (pos < end && isIdentifierPart(char = codePointAt(text, pos), languageVersion) || text.charCodeAt(pos) === 45)
+                    pos += charSize(char);
+                tokenValue = text.substring(tokenPos, pos);
+                if (char === 92) {
+                    tokenValue += scanIdentifierParts();
+                }
+                return token = getIdentifierToken();
+            }
+            else {
+                return token = 0;
+            }
+        }
+        function speculationHelper(callback, isLookahead) {
+            var savePos = pos;
+            var saveStartPos = startPos;
+            var saveTokenPos = tokenPos;
+            var saveToken = token;
+            var saveTokenValue = tokenValue;
+            var saveTokenFlags = tokenFlags;
+            var result = callback();
+            if (!result || isLookahead) {
+                pos = savePos;
+                startPos = saveStartPos;
+                tokenPos = saveTokenPos;
+                token = saveToken;
+                tokenValue = saveTokenValue;
+                tokenFlags = saveTokenFlags;
+            }
+            return result;
+        }
+        function scanRange(start, length, callback) {
+            var saveEnd = end;
+            var savePos = pos;
+            var saveStartPos = startPos;
+            var saveTokenPos = tokenPos;
+            var saveToken = token;
+            var saveTokenValue = tokenValue;
+            var saveTokenFlags = tokenFlags;
+            var saveErrorExpectations = commentDirectives;
+            setText(text, start, length);
+            var result = callback();
+            end = saveEnd;
+            pos = savePos;
+            startPos = saveStartPos;
+            tokenPos = saveTokenPos;
+            token = saveToken;
+            tokenValue = saveTokenValue;
+            tokenFlags = saveTokenFlags;
+            commentDirectives = saveErrorExpectations;
+            return result;
+        }
+        function lookAhead(callback) {
+            return speculationHelper(callback, true);
+        }
+        function tryScan(callback) {
+            return speculationHelper(callback, false);
+        }
+        function getText() {
+            return text;
+        }
+        function clearCommentDirectives() {
+            commentDirectives = undefined;
+        }
+        function setText(newText, start, length) {
+            text = newText || "";
+            end = length === undefined ? text.length : start + length;
+            setTextPos(start || 0);
+        }
+        function setOnError(errorCallback) {
+            onError = errorCallback;
+        }
+        function setScriptTarget(scriptTarget) {
+            languageVersion = scriptTarget;
+        }
+        function setLanguageVariant(variant) {
+            languageVariant = variant;
+        }
+        function setTextPos(textPos) {
+            ts.Debug.assert(textPos >= 0);
+            pos = textPos;
+            startPos = textPos;
+            tokenPos = textPos;
+            token = 0;
+            tokenValue = undefined;
+            tokenFlags = 0;
+        }
+        function setInJSDocType(inType) {
+            inJSDocType += inType ? 1 : -1;
+        }
+    }
+    ts.createScanner = createScanner;
+    var codePointAt = String.prototype.codePointAt ? function (s, i) { return s.codePointAt(i); } : function codePointAt(str, i) {
+        var size = str.length;
+        if (i < 0 || i >= size) {
+            return undefined;
+        }
+        var first = str.charCodeAt(i);
+        if (first >= 0xD800 && first <= 0xDBFF && size > i + 1) {
+            var second = str.charCodeAt(i + 1);
+            if (second >= 0xDC00 && second <= 0xDFFF) {
+                return (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
+            }
+        }
+        return first;
+    };
+    function charSize(ch) {
+        if (ch >= 0x10000) {
+            return 2;
+        }
+        return 1;
+    }
+    function utf16EncodeAsStringFallback(codePoint) {
+        ts.Debug.assert(0x0 <= codePoint && codePoint <= 0x10FFFF);
+        if (codePoint <= 65535) {
+            return String.fromCharCode(codePoint);
+        }
+        var codeUnit1 = Math.floor((codePoint - 65536) / 1024) + 0xD800;
+        var codeUnit2 = ((codePoint - 65536) % 1024) + 0xDC00;
+        return String.fromCharCode(codeUnit1, codeUnit2);
+    }
+    var utf16EncodeAsStringWorker = String.fromCodePoint ? function (codePoint) { return String.fromCodePoint(codePoint); } : utf16EncodeAsStringFallback;
+    function utf16EncodeAsString(codePoint) {
+        return utf16EncodeAsStringWorker(codePoint);
+    }
+    ts.utf16EncodeAsString = utf16EncodeAsString;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function isExternalModuleNameRelative(moduleName) {
+        return ts.pathIsRelative(moduleName) || ts.isRootedDiskPath(moduleName);
+    }
+    ts.isExternalModuleNameRelative = isExternalModuleNameRelative;
+    function sortAndDeduplicateDiagnostics(diagnostics) {
+        return ts.sortAndDeduplicate(diagnostics, ts.compareDiagnostics);
+    }
+    ts.sortAndDeduplicateDiagnostics = sortAndDeduplicateDiagnostics;
+    function getDefaultLibFileName(options) {
+        switch (options.target) {
+            case 99:
+                return "lib.esnext.full.d.ts";
+            case 7:
+                return "lib.es2020.full.d.ts";
+            case 6:
+                return "lib.es2019.full.d.ts";
+            case 5:
+                return "lib.es2018.full.d.ts";
+            case 4:
+                return "lib.es2017.full.d.ts";
+            case 3:
+                return "lib.es2016.full.d.ts";
+            case 2:
+                return "lib.es6.d.ts";
+            default:
+                return "lib.d.ts";
+        }
+    }
+    ts.getDefaultLibFileName = getDefaultLibFileName;
+    function textSpanEnd(span) {
+        return span.start + span.length;
+    }
+    ts.textSpanEnd = textSpanEnd;
+    function textSpanIsEmpty(span) {
+        return span.length === 0;
+    }
+    ts.textSpanIsEmpty = textSpanIsEmpty;
+    function textSpanContainsPosition(span, position) {
+        return position >= span.start && position < textSpanEnd(span);
+    }
+    ts.textSpanContainsPosition = textSpanContainsPosition;
+    function textRangeContainsPositionInclusive(span, position) {
+        return position >= span.pos && position <= span.end;
+    }
+    ts.textRangeContainsPositionInclusive = textRangeContainsPositionInclusive;
+    function textSpanContainsTextSpan(span, other) {
+        return other.start >= span.start && textSpanEnd(other) <= textSpanEnd(span);
+    }
+    ts.textSpanContainsTextSpan = textSpanContainsTextSpan;
+    function textSpanOverlapsWith(span, other) {
+        return textSpanOverlap(span, other) !== undefined;
+    }
+    ts.textSpanOverlapsWith = textSpanOverlapsWith;
+    function textSpanOverlap(span1, span2) {
+        var overlap = textSpanIntersection(span1, span2);
+        return overlap && overlap.length === 0 ? undefined : overlap;
+    }
+    ts.textSpanOverlap = textSpanOverlap;
+    function textSpanIntersectsWithTextSpan(span, other) {
+        return decodedTextSpanIntersectsWith(span.start, span.length, other.start, other.length);
+    }
+    ts.textSpanIntersectsWithTextSpan = textSpanIntersectsWithTextSpan;
+    function textSpanIntersectsWith(span, start, length) {
+        return decodedTextSpanIntersectsWith(span.start, span.length, start, length);
+    }
+    ts.textSpanIntersectsWith = textSpanIntersectsWith;
+    function decodedTextSpanIntersectsWith(start1, length1, start2, length2) {
+        var end1 = start1 + length1;
+        var end2 = start2 + length2;
+        return start2 <= end1 && end2 >= start1;
+    }
+    ts.decodedTextSpanIntersectsWith = decodedTextSpanIntersectsWith;
+    function textSpanIntersectsWithPosition(span, position) {
+        return position <= textSpanEnd(span) && position >= span.start;
+    }
+    ts.textSpanIntersectsWithPosition = textSpanIntersectsWithPosition;
+    function textSpanIntersection(span1, span2) {
+        var start = Math.max(span1.start, span2.start);
+        var end = Math.min(textSpanEnd(span1), textSpanEnd(span2));
+        return start <= end ? createTextSpanFromBounds(start, end) : undefined;
+    }
+    ts.textSpanIntersection = textSpanIntersection;
+    function createTextSpan(start, length) {
+        if (start < 0) {
+            throw new Error("start < 0");
+        }
+        if (length < 0) {
+            throw new Error("length < 0");
+        }
+        return { start: start, length: length };
+    }
+    ts.createTextSpan = createTextSpan;
+    function createTextSpanFromBounds(start, end) {
+        return createTextSpan(start, end - start);
+    }
+    ts.createTextSpanFromBounds = createTextSpanFromBounds;
+    function textChangeRangeNewSpan(range) {
+        return createTextSpan(range.span.start, range.newLength);
+    }
+    ts.textChangeRangeNewSpan = textChangeRangeNewSpan;
+    function textChangeRangeIsUnchanged(range) {
+        return textSpanIsEmpty(range.span) && range.newLength === 0;
+    }
+    ts.textChangeRangeIsUnchanged = textChangeRangeIsUnchanged;
+    function createTextChangeRange(span, newLength) {
+        if (newLength < 0) {
+            throw new Error("newLength < 0");
+        }
+        return { span: span, newLength: newLength };
+    }
+    ts.createTextChangeRange = createTextChangeRange;
+    ts.unchangedTextChangeRange = createTextChangeRange(createTextSpan(0, 0), 0);
+    function collapseTextChangeRangesAcrossMultipleVersions(changes) {
+        if (changes.length === 0) {
+            return ts.unchangedTextChangeRange;
+        }
+        if (changes.length === 1) {
+            return changes[0];
+        }
+        var change0 = changes[0];
+        var oldStartN = change0.span.start;
+        var oldEndN = textSpanEnd(change0.span);
+        var newEndN = oldStartN + change0.newLength;
+        for (var i = 1; i < changes.length; i++) {
+            var nextChange = changes[i];
+            var oldStart1 = oldStartN;
+            var oldEnd1 = oldEndN;
+            var newEnd1 = newEndN;
+            var oldStart2 = nextChange.span.start;
+            var oldEnd2 = textSpanEnd(nextChange.span);
+            var newEnd2 = oldStart2 + nextChange.newLength;
+            oldStartN = Math.min(oldStart1, oldStart2);
+            oldEndN = Math.max(oldEnd1, oldEnd1 + (oldEnd2 - newEnd1));
+            newEndN = Math.max(newEnd2, newEnd2 + (newEnd1 - oldEnd2));
+        }
+        return createTextChangeRange(createTextSpanFromBounds(oldStartN, oldEndN), newEndN - oldStartN);
+    }
+    ts.collapseTextChangeRangesAcrossMultipleVersions = collapseTextChangeRangesAcrossMultipleVersions;
+    function getTypeParameterOwner(d) {
+        if (d && d.kind === 155) {
+            for (var current = d; current; current = current.parent) {
+                if (isFunctionLike(current) || isClassLike(current) || current.kind === 246) {
+                    return current;
+                }
+            }
+        }
+    }
+    ts.getTypeParameterOwner = getTypeParameterOwner;
+    function isParameterPropertyDeclaration(node, parent) {
+        return ts.hasModifier(node, 92) && parent.kind === 162;
+    }
+    ts.isParameterPropertyDeclaration = isParameterPropertyDeclaration;
+    function isEmptyBindingPattern(node) {
+        if (isBindingPattern(node)) {
+            return ts.every(node.elements, isEmptyBindingElement);
+        }
+        return false;
+    }
+    ts.isEmptyBindingPattern = isEmptyBindingPattern;
+    function isEmptyBindingElement(node) {
+        if (isOmittedExpression(node)) {
+            return true;
+        }
+        return isEmptyBindingPattern(node.name);
+    }
+    ts.isEmptyBindingElement = isEmptyBindingElement;
+    function walkUpBindingElementsAndPatterns(binding) {
+        var node = binding.parent;
+        while (isBindingElement(node.parent)) {
+            node = node.parent.parent;
+        }
+        return node.parent;
+    }
+    ts.walkUpBindingElementsAndPatterns = walkUpBindingElementsAndPatterns;
+    function getCombinedFlags(node, getFlags) {
+        if (isBindingElement(node)) {
+            node = walkUpBindingElementsAndPatterns(node);
+        }
+        var flags = getFlags(node);
+        if (node.kind === 242) {
+            node = node.parent;
+        }
+        if (node && node.kind === 243) {
+            flags |= getFlags(node);
+            node = node.parent;
+        }
+        if (node && node.kind === 225) {
+            flags |= getFlags(node);
+        }
+        return flags;
+    }
+    function getCombinedModifierFlags(node) {
+        return getCombinedFlags(node, ts.getModifierFlags);
+    }
+    ts.getCombinedModifierFlags = getCombinedModifierFlags;
+    function getCombinedNodeFlags(node) {
+        return getCombinedFlags(node, function (n) { return n.flags; });
+    }
+    ts.getCombinedNodeFlags = getCombinedNodeFlags;
+    function validateLocaleAndSetLanguage(locale, sys, errors) {
+        var matchResult = /^([a-z]+)([_\-]([a-z]+))?$/.exec(locale.toLowerCase());
+        if (!matchResult) {
+            if (errors) {
+                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Locale_must_be_of_the_form_language_or_language_territory_For_example_0_or_1, "en", "ja-jp"));
+            }
+            return;
+        }
+        var language = matchResult[1];
+        var territory = matchResult[3];
+        if (!trySetLanguageAndTerritory(language, territory, errors)) {
+            trySetLanguageAndTerritory(language, undefined, errors);
+        }
+        ts.setUILocale(locale);
+        function trySetLanguageAndTerritory(language, territory, errors) {
+            var compilerFilePath = ts.normalizePath(sys.getExecutingFilePath());
+            var containingDirectoryPath = ts.getDirectoryPath(compilerFilePath);
+            var filePath = ts.combinePaths(containingDirectoryPath, language);
+            if (territory) {
+                filePath = filePath + "-" + territory;
+            }
+            filePath = sys.resolvePath(ts.combinePaths(filePath, "diagnosticMessages.generated.json"));
+            if (!sys.fileExists(filePath)) {
+                return false;
+            }
+            var fileContents = "";
+            try {
+                fileContents = sys.readFile(filePath);
+            }
+            catch (e) {
+                if (errors) {
+                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unable_to_open_file_0, filePath));
+                }
+                return false;
+            }
+            try {
+                ts.setLocalizedDiagnosticMessages(JSON.parse(fileContents));
+            }
+            catch (_a) {
+                if (errors) {
+                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Corrupted_locale_file_0, filePath));
+                }
+                return false;
+            }
+            return true;
+        }
+    }
+    ts.validateLocaleAndSetLanguage = validateLocaleAndSetLanguage;
+    function getOriginalNode(node, nodeTest) {
+        if (node) {
+            while (node.original !== undefined) {
+                node = node.original;
+            }
+        }
+        return !nodeTest || nodeTest(node) ? node : undefined;
+    }
+    ts.getOriginalNode = getOriginalNode;
+    function isParseTreeNode(node) {
+        return (node.flags & 8) === 0;
+    }
+    ts.isParseTreeNode = isParseTreeNode;
+    function getParseTreeNode(node, nodeTest) {
+        if (node === undefined || isParseTreeNode(node)) {
+            return node;
+        }
+        node = getOriginalNode(node);
+        if (isParseTreeNode(node) && (!nodeTest || nodeTest(node))) {
+            return node;
+        }
+        return undefined;
+    }
+    ts.getParseTreeNode = getParseTreeNode;
+    function escapeLeadingUnderscores(identifier) {
+        return (identifier.length >= 2 && identifier.charCodeAt(0) === 95 && identifier.charCodeAt(1) === 95 ? "_" + identifier : identifier);
+    }
+    ts.escapeLeadingUnderscores = escapeLeadingUnderscores;
+    function unescapeLeadingUnderscores(identifier) {
+        var id = identifier;
+        return id.length >= 3 && id.charCodeAt(0) === 95 && id.charCodeAt(1) === 95 && id.charCodeAt(2) === 95 ? id.substr(1) : id;
+    }
+    ts.unescapeLeadingUnderscores = unescapeLeadingUnderscores;
+    function idText(identifierOrPrivateName) {
+        return unescapeLeadingUnderscores(identifierOrPrivateName.escapedText);
+    }
+    ts.idText = idText;
+    function symbolName(symbol) {
+        if (symbol.valueDeclaration && isPrivateIdentifierPropertyDeclaration(symbol.valueDeclaration)) {
+            return idText(symbol.valueDeclaration.name);
+        }
+        return unescapeLeadingUnderscores(symbol.escapedName);
+    }
+    ts.symbolName = symbolName;
+    function nameForNamelessJSDocTypedef(declaration) {
+        var hostNode = declaration.parent.parent;
+        if (!hostNode) {
+            return undefined;
+        }
+        if (isDeclaration(hostNode)) {
+            return getDeclarationIdentifier(hostNode);
+        }
+        switch (hostNode.kind) {
+            case 225:
+                if (hostNode.declarationList && hostNode.declarationList.declarations[0]) {
+                    return getDeclarationIdentifier(hostNode.declarationList.declarations[0]);
+                }
+                break;
+            case 226:
+                var expr = hostNode.expression;
+                if (expr.kind === 209 && expr.operatorToken.kind === 62) {
+                    expr = expr.left;
+                }
+                switch (expr.kind) {
+                    case 194:
+                        return expr.name;
+                    case 195:
+                        var arg = expr.argumentExpression;
+                        if (isIdentifier(arg)) {
+                            return arg;
+                        }
+                }
+                break;
+            case 200: {
+                return getDeclarationIdentifier(hostNode.expression);
+            }
+            case 238: {
+                if (isDeclaration(hostNode.statement) || isExpression(hostNode.statement)) {
+                    return getDeclarationIdentifier(hostNode.statement);
+                }
+                break;
+            }
+        }
+    }
+    function getDeclarationIdentifier(node) {
+        var name = getNameOfDeclaration(node);
+        return name && isIdentifier(name) ? name : undefined;
+    }
+    function nodeHasName(statement, name) {
+        if (isNamedDeclaration(statement) && isIdentifier(statement.name) && idText(statement.name) === idText(name)) {
+            return true;
+        }
+        if (isVariableStatement(statement) && ts.some(statement.declarationList.declarations, function (d) { return nodeHasName(d, name); })) {
+            return true;
+        }
+        return false;
+    }
+    ts.nodeHasName = nodeHasName;
+    function getNameOfJSDocTypedef(declaration) {
+        return declaration.name || nameForNamelessJSDocTypedef(declaration);
+    }
+    ts.getNameOfJSDocTypedef = getNameOfJSDocTypedef;
+    function isNamedDeclaration(node) {
+        return !!node.name;
+    }
+    ts.isNamedDeclaration = isNamedDeclaration;
+    function getNonAssignedNameOfDeclaration(declaration) {
+        switch (declaration.kind) {
+            case 75:
+                return declaration;
+            case 323:
+            case 317: {
+                var name = declaration.name;
+                if (name.kind === 153) {
+                    return name.right;
+                }
+                break;
+            }
+            case 196:
+            case 209: {
+                var expr_1 = declaration;
+                switch (ts.getAssignmentDeclarationKind(expr_1)) {
+                    case 1:
+                    case 4:
+                    case 5:
+                    case 3:
+                        return ts.getElementOrPropertyAccessArgumentExpressionOrName(expr_1.left);
+                    case 7:
+                    case 8:
+                    case 9:
+                        return expr_1.arguments[1];
+                    default:
+                        return undefined;
+                }
+            }
+            case 322:
+                return getNameOfJSDocTypedef(declaration);
+            case 316:
+                return nameForNamelessJSDocTypedef(declaration);
+            case 259: {
+                var expression = declaration.expression;
+                return isIdentifier(expression) ? expression : undefined;
+            }
+            case 195:
+                var expr = declaration;
+                if (ts.isBindableStaticElementAccessExpression(expr)) {
+                    return expr.argumentExpression;
+                }
+        }
+        return declaration.name;
+    }
+    ts.getNonAssignedNameOfDeclaration = getNonAssignedNameOfDeclaration;
+    function getNameOfDeclaration(declaration) {
+        if (declaration === undefined)
+            return undefined;
+        return getNonAssignedNameOfDeclaration(declaration) ||
+            (isFunctionExpression(declaration) || isClassExpression(declaration) ? getAssignedName(declaration) : undefined);
+    }
+    ts.getNameOfDeclaration = getNameOfDeclaration;
+    function getAssignedName(node) {
+        if (!node.parent) {
+            return undefined;
+        }
+        else if (isPropertyAssignment(node.parent) || isBindingElement(node.parent)) {
+            return node.parent.name;
+        }
+        else if (isBinaryExpression(node.parent) && node === node.parent.right) {
+            if (isIdentifier(node.parent.left)) {
+                return node.parent.left;
+            }
+            else if (ts.isAccessExpression(node.parent.left)) {
+                return ts.getElementOrPropertyAccessArgumentExpressionOrName(node.parent.left);
+            }
+        }
+        else if (isVariableDeclaration(node.parent) && isIdentifier(node.parent.name)) {
+            return node.parent.name;
+        }
+    }
+    function getJSDocParameterTags(param) {
+        if (param.name) {
+            if (isIdentifier(param.name)) {
+                var name_1 = param.name.escapedText;
+                return getJSDocTags(param.parent).filter(function (tag) { return isJSDocParameterTag(tag) && isIdentifier(tag.name) && tag.name.escapedText === name_1; });
+            }
+            else {
+                var i = param.parent.parameters.indexOf(param);
+                ts.Debug.assert(i > -1, "Parameters should always be in their parents' parameter list");
+                var paramTags = getJSDocTags(param.parent).filter(isJSDocParameterTag);
+                if (i < paramTags.length) {
+                    return [paramTags[i]];
+                }
+            }
+        }
+        return ts.emptyArray;
+    }
+    ts.getJSDocParameterTags = getJSDocParameterTags;
+    function getJSDocTypeParameterTags(param) {
+        var name = param.name.escapedText;
+        return getJSDocTags(param.parent).filter(function (tag) {
+            return isJSDocTemplateTag(tag) && tag.typeParameters.some(function (tp) { return tp.name.escapedText === name; });
+        });
+    }
+    ts.getJSDocTypeParameterTags = getJSDocTypeParameterTags;
+    function hasJSDocParameterTags(node) {
+        return !!getFirstJSDocTag(node, isJSDocParameterTag);
+    }
+    ts.hasJSDocParameterTags = hasJSDocParameterTags;
+    function getJSDocAugmentsTag(node) {
+        return getFirstJSDocTag(node, isJSDocAugmentsTag);
+    }
+    ts.getJSDocAugmentsTag = getJSDocAugmentsTag;
+    function getJSDocImplementsTags(node) {
+        return getAllJSDocTags(node, isJSDocImplementsTag);
+    }
+    ts.getJSDocImplementsTags = getJSDocImplementsTags;
+    function getJSDocClassTag(node) {
+        return getFirstJSDocTag(node, isJSDocClassTag);
+    }
+    ts.getJSDocClassTag = getJSDocClassTag;
+    function getJSDocPublicTag(node) {
+        return getFirstJSDocTag(node, isJSDocPublicTag);
+    }
+    ts.getJSDocPublicTag = getJSDocPublicTag;
+    function getJSDocPrivateTag(node) {
+        return getFirstJSDocTag(node, isJSDocPrivateTag);
+    }
+    ts.getJSDocPrivateTag = getJSDocPrivateTag;
+    function getJSDocProtectedTag(node) {
+        return getFirstJSDocTag(node, isJSDocProtectedTag);
+    }
+    ts.getJSDocProtectedTag = getJSDocProtectedTag;
+    function getJSDocReadonlyTag(node) {
+        return getFirstJSDocTag(node, isJSDocReadonlyTag);
+    }
+    ts.getJSDocReadonlyTag = getJSDocReadonlyTag;
+    function getJSDocEnumTag(node) {
+        return getFirstJSDocTag(node, isJSDocEnumTag);
+    }
+    ts.getJSDocEnumTag = getJSDocEnumTag;
+    function getJSDocThisTag(node) {
+        return getFirstJSDocTag(node, isJSDocThisTag);
+    }
+    ts.getJSDocThisTag = getJSDocThisTag;
+    function getJSDocReturnTag(node) {
+        return getFirstJSDocTag(node, isJSDocReturnTag);
+    }
+    ts.getJSDocReturnTag = getJSDocReturnTag;
+    function getJSDocTemplateTag(node) {
+        return getFirstJSDocTag(node, isJSDocTemplateTag);
+    }
+    ts.getJSDocTemplateTag = getJSDocTemplateTag;
+    function getJSDocTypeTag(node) {
+        var tag = getFirstJSDocTag(node, isJSDocTypeTag);
+        if (tag && tag.typeExpression && tag.typeExpression.type) {
+            return tag;
+        }
+        return undefined;
+    }
+    ts.getJSDocTypeTag = getJSDocTypeTag;
+    function getJSDocType(node) {
+        var tag = getFirstJSDocTag(node, isJSDocTypeTag);
+        if (!tag && isParameter(node)) {
+            tag = ts.find(getJSDocParameterTags(node), function (tag) { return !!tag.typeExpression; });
+        }
+        return tag && tag.typeExpression && tag.typeExpression.type;
+    }
+    ts.getJSDocType = getJSDocType;
+    function getJSDocReturnType(node) {
+        var returnTag = getJSDocReturnTag(node);
+        if (returnTag && returnTag.typeExpression) {
+            return returnTag.typeExpression.type;
+        }
+        var typeTag = getJSDocTypeTag(node);
+        if (typeTag && typeTag.typeExpression) {
+            var type = typeTag.typeExpression.type;
+            if (isTypeLiteralNode(type)) {
+                var sig = ts.find(type.members, isCallSignatureDeclaration);
+                return sig && sig.type;
+            }
+            if (isFunctionTypeNode(type) || isJSDocFunctionType(type)) {
+                return type.type;
+            }
+        }
+    }
+    ts.getJSDocReturnType = getJSDocReturnType;
+    function getJSDocTags(node) {
+        var tags = node.jsDocCache;
+        if (tags === undefined) {
+            var comments = ts.getJSDocCommentsAndTags(node);
+            ts.Debug.assert(comments.length < 2 || comments[0] !== comments[1]);
+            node.jsDocCache = tags = ts.flatMap(comments, function (j) { return isJSDoc(j) ? j.tags : j; });
+        }
+        return tags;
+    }
+    ts.getJSDocTags = getJSDocTags;
+    function getFirstJSDocTag(node, predicate) {
+        return ts.find(getJSDocTags(node), predicate);
+    }
+    function getAllJSDocTags(node, predicate) {
+        return getJSDocTags(node).filter(predicate);
+    }
+    ts.getAllJSDocTags = getAllJSDocTags;
+    function getAllJSDocTagsOfKind(node, kind) {
+        return getJSDocTags(node).filter(function (doc) { return doc.kind === kind; });
+    }
+    ts.getAllJSDocTagsOfKind = getAllJSDocTagsOfKind;
+    function getEffectiveTypeParameterDeclarations(node) {
+        if (isJSDocSignature(node)) {
+            return ts.emptyArray;
+        }
+        if (ts.isJSDocTypeAlias(node)) {
+            ts.Debug.assert(node.parent.kind === 303);
+            return ts.flatMap(node.parent.tags, function (tag) { return isJSDocTemplateTag(tag) ? tag.typeParameters : undefined; });
+        }
+        if (node.typeParameters) {
+            return node.typeParameters;
+        }
+        if (ts.isInJSFile(node)) {
+            var decls = ts.getJSDocTypeParameterDeclarations(node);
+            if (decls.length) {
+                return decls;
+            }
+            var typeTag = getJSDocType(node);
+            if (typeTag && isFunctionTypeNode(typeTag) && typeTag.typeParameters) {
+                return typeTag.typeParameters;
+            }
+        }
+        return ts.emptyArray;
+    }
+    ts.getEffectiveTypeParameterDeclarations = getEffectiveTypeParameterDeclarations;
+    function getEffectiveConstraintOfTypeParameter(node) {
+        return node.constraint ? node.constraint :
+            isJSDocTemplateTag(node.parent) && node === node.parent.typeParameters[0] ? node.parent.constraint :
+                undefined;
+    }
+    ts.getEffectiveConstraintOfTypeParameter = getEffectiveConstraintOfTypeParameter;
+    function isNumericLiteral(node) {
+        return node.kind === 8;
+    }
+    ts.isNumericLiteral = isNumericLiteral;
+    function isBigIntLiteral(node) {
+        return node.kind === 9;
+    }
+    ts.isBigIntLiteral = isBigIntLiteral;
+    function isStringLiteral(node) {
+        return node.kind === 10;
+    }
+    ts.isStringLiteral = isStringLiteral;
+    function isJsxText(node) {
+        return node.kind === 11;
+    }
+    ts.isJsxText = isJsxText;
+    function isRegularExpressionLiteral(node) {
+        return node.kind === 13;
+    }
+    ts.isRegularExpressionLiteral = isRegularExpressionLiteral;
+    function isNoSubstitutionTemplateLiteral(node) {
+        return node.kind === 14;
+    }
+    ts.isNoSubstitutionTemplateLiteral = isNoSubstitutionTemplateLiteral;
+    function isTemplateHead(node) {
+        return node.kind === 15;
+    }
+    ts.isTemplateHead = isTemplateHead;
+    function isTemplateMiddle(node) {
+        return node.kind === 16;
+    }
+    ts.isTemplateMiddle = isTemplateMiddle;
+    function isTemplateTail(node) {
+        return node.kind === 17;
+    }
+    ts.isTemplateTail = isTemplateTail;
+    function isIdentifier(node) {
+        return node.kind === 75;
+    }
+    ts.isIdentifier = isIdentifier;
+    function isQualifiedName(node) {
+        return node.kind === 153;
+    }
+    ts.isQualifiedName = isQualifiedName;
+    function isComputedPropertyName(node) {
+        return node.kind === 154;
+    }
+    ts.isComputedPropertyName = isComputedPropertyName;
+    function isPrivateIdentifier(node) {
+        return node.kind === 76;
+    }
+    ts.isPrivateIdentifier = isPrivateIdentifier;
+    function isIdentifierOrPrivateIdentifier(node) {
+        return node.kind === 75 || node.kind === 76;
+    }
+    ts.isIdentifierOrPrivateIdentifier = isIdentifierOrPrivateIdentifier;
+    function isTypeParameterDeclaration(node) {
+        return node.kind === 155;
+    }
+    ts.isTypeParameterDeclaration = isTypeParameterDeclaration;
+    function isParameter(node) {
+        return node.kind === 156;
+    }
+    ts.isParameter = isParameter;
+    function isDecorator(node) {
+        return node.kind === 157;
+    }
+    ts.isDecorator = isDecorator;
+    function isPropertySignature(node) {
+        return node.kind === 158;
+    }
+    ts.isPropertySignature = isPropertySignature;
+    function isPropertyDeclaration(node) {
+        return node.kind === 159;
+    }
+    ts.isPropertyDeclaration = isPropertyDeclaration;
+    function isMethodSignature(node) {
+        return node.kind === 160;
+    }
+    ts.isMethodSignature = isMethodSignature;
+    function isMethodDeclaration(node) {
+        return node.kind === 161;
+    }
+    ts.isMethodDeclaration = isMethodDeclaration;
+    function isConstructorDeclaration(node) {
+        return node.kind === 162;
+    }
+    ts.isConstructorDeclaration = isConstructorDeclaration;
+    function isGetAccessorDeclaration(node) {
+        return node.kind === 163;
+    }
+    ts.isGetAccessorDeclaration = isGetAccessorDeclaration;
+    function isSetAccessorDeclaration(node) {
+        return node.kind === 164;
+    }
+    ts.isSetAccessorDeclaration = isSetAccessorDeclaration;
+    function isCallSignatureDeclaration(node) {
+        return node.kind === 165;
+    }
+    ts.isCallSignatureDeclaration = isCallSignatureDeclaration;
+    function isConstructSignatureDeclaration(node) {
+        return node.kind === 166;
+    }
+    ts.isConstructSignatureDeclaration = isConstructSignatureDeclaration;
+    function isIndexSignatureDeclaration(node) {
+        return node.kind === 167;
+    }
+    ts.isIndexSignatureDeclaration = isIndexSignatureDeclaration;
+    function isGetOrSetAccessorDeclaration(node) {
+        return node.kind === 164 || node.kind === 163;
+    }
+    ts.isGetOrSetAccessorDeclaration = isGetOrSetAccessorDeclaration;
+    function isTypePredicateNode(node) {
+        return node.kind === 168;
+    }
+    ts.isTypePredicateNode = isTypePredicateNode;
+    function isTypeReferenceNode(node) {
+        return node.kind === 169;
+    }
+    ts.isTypeReferenceNode = isTypeReferenceNode;
+    function isFunctionTypeNode(node) {
+        return node.kind === 170;
+    }
+    ts.isFunctionTypeNode = isFunctionTypeNode;
+    function isConstructorTypeNode(node) {
+        return node.kind === 171;
+    }
+    ts.isConstructorTypeNode = isConstructorTypeNode;
+    function isTypeQueryNode(node) {
+        return node.kind === 172;
+    }
+    ts.isTypeQueryNode = isTypeQueryNode;
+    function isTypeLiteralNode(node) {
+        return node.kind === 173;
+    }
+    ts.isTypeLiteralNode = isTypeLiteralNode;
+    function isArrayTypeNode(node) {
+        return node.kind === 174;
+    }
+    ts.isArrayTypeNode = isArrayTypeNode;
+    function isTupleTypeNode(node) {
+        return node.kind === 175;
+    }
+    ts.isTupleTypeNode = isTupleTypeNode;
+    function isUnionTypeNode(node) {
+        return node.kind === 178;
+    }
+    ts.isUnionTypeNode = isUnionTypeNode;
+    function isIntersectionTypeNode(node) {
+        return node.kind === 179;
+    }
+    ts.isIntersectionTypeNode = isIntersectionTypeNode;
+    function isConditionalTypeNode(node) {
+        return node.kind === 180;
+    }
+    ts.isConditionalTypeNode = isConditionalTypeNode;
+    function isInferTypeNode(node) {
+        return node.kind === 181;
+    }
+    ts.isInferTypeNode = isInferTypeNode;
+    function isParenthesizedTypeNode(node) {
+        return node.kind === 182;
+    }
+    ts.isParenthesizedTypeNode = isParenthesizedTypeNode;
+    function isThisTypeNode(node) {
+        return node.kind === 183;
+    }
+    ts.isThisTypeNode = isThisTypeNode;
+    function isTypeOperatorNode(node) {
+        return node.kind === 184;
+    }
+    ts.isTypeOperatorNode = isTypeOperatorNode;
+    function isIndexedAccessTypeNode(node) {
+        return node.kind === 185;
+    }
+    ts.isIndexedAccessTypeNode = isIndexedAccessTypeNode;
+    function isMappedTypeNode(node) {
+        return node.kind === 186;
+    }
+    ts.isMappedTypeNode = isMappedTypeNode;
+    function isLiteralTypeNode(node) {
+        return node.kind === 187;
+    }
+    ts.isLiteralTypeNode = isLiteralTypeNode;
+    function isImportTypeNode(node) {
+        return node.kind === 188;
+    }
+    ts.isImportTypeNode = isImportTypeNode;
+    function isObjectBindingPattern(node) {
+        return node.kind === 189;
+    }
+    ts.isObjectBindingPattern = isObjectBindingPattern;
+    function isArrayBindingPattern(node) {
+        return node.kind === 190;
+    }
+    ts.isArrayBindingPattern = isArrayBindingPattern;
+    function isBindingElement(node) {
+        return node.kind === 191;
+    }
+    ts.isBindingElement = isBindingElement;
+    function isArrayLiteralExpression(node) {
+        return node.kind === 192;
+    }
+    ts.isArrayLiteralExpression = isArrayLiteralExpression;
+    function isObjectLiteralExpression(node) {
+        return node.kind === 193;
+    }
+    ts.isObjectLiteralExpression = isObjectLiteralExpression;
+    function isPropertyAccessExpression(node) {
+        return node.kind === 194;
+    }
+    ts.isPropertyAccessExpression = isPropertyAccessExpression;
+    function isPropertyAccessChain(node) {
+        return isPropertyAccessExpression(node) && !!(node.flags & 32);
+    }
+    ts.isPropertyAccessChain = isPropertyAccessChain;
+    function isElementAccessExpression(node) {
+        return node.kind === 195;
+    }
+    ts.isElementAccessExpression = isElementAccessExpression;
+    function isElementAccessChain(node) {
+        return isElementAccessExpression(node) && !!(node.flags & 32);
+    }
+    ts.isElementAccessChain = isElementAccessChain;
+    function isCallExpression(node) {
+        return node.kind === 196;
+    }
+    ts.isCallExpression = isCallExpression;
+    function isCallChain(node) {
+        return isCallExpression(node) && !!(node.flags & 32);
+    }
+    ts.isCallChain = isCallChain;
+    function isOptionalChain(node) {
+        var kind = node.kind;
+        return !!(node.flags & 32) &&
+            (kind === 194
+                || kind === 195
+                || kind === 196
+                || kind === 218);
+    }
+    ts.isOptionalChain = isOptionalChain;
+    function isOptionalChainRoot(node) {
+        return isOptionalChain(node) && !isNonNullExpression(node) && !!node.questionDotToken;
+    }
+    ts.isOptionalChainRoot = isOptionalChainRoot;
+    function isExpressionOfOptionalChainRoot(node) {
+        return isOptionalChainRoot(node.parent) && node.parent.expression === node;
+    }
+    ts.isExpressionOfOptionalChainRoot = isExpressionOfOptionalChainRoot;
+    function isOutermostOptionalChain(node) {
+        return !isOptionalChain(node.parent)
+            || isOptionalChainRoot(node.parent)
+            || node !== node.parent.expression;
+    }
+    ts.isOutermostOptionalChain = isOutermostOptionalChain;
+    function isNullishCoalesce(node) {
+        return node.kind === 209 && node.operatorToken.kind === 60;
+    }
+    ts.isNullishCoalesce = isNullishCoalesce;
+    function isNewExpression(node) {
+        return node.kind === 197;
+    }
+    ts.isNewExpression = isNewExpression;
+    function isTaggedTemplateExpression(node) {
+        return node.kind === 198;
+    }
+    ts.isTaggedTemplateExpression = isTaggedTemplateExpression;
+    function isTypeAssertion(node) {
+        return node.kind === 199;
+    }
+    ts.isTypeAssertion = isTypeAssertion;
+    function isConstTypeReference(node) {
+        return isTypeReferenceNode(node) && isIdentifier(node.typeName) &&
+            node.typeName.escapedText === "const" && !node.typeArguments;
+    }
+    ts.isConstTypeReference = isConstTypeReference;
+    function isParenthesizedExpression(node) {
+        return node.kind === 200;
+    }
+    ts.isParenthesizedExpression = isParenthesizedExpression;
+    function skipPartiallyEmittedExpressions(node) {
+        return ts.skipOuterExpressions(node, 8);
+    }
+    ts.skipPartiallyEmittedExpressions = skipPartiallyEmittedExpressions;
+    function isFunctionExpression(node) {
+        return node.kind === 201;
+    }
+    ts.isFunctionExpression = isFunctionExpression;
+    function isArrowFunction(node) {
+        return node.kind === 202;
+    }
+    ts.isArrowFunction = isArrowFunction;
+    function isDeleteExpression(node) {
+        return node.kind === 203;
+    }
+    ts.isDeleteExpression = isDeleteExpression;
+    function isTypeOfExpression(node) {
+        return node.kind === 204;
+    }
+    ts.isTypeOfExpression = isTypeOfExpression;
+    function isVoidExpression(node) {
+        return node.kind === 205;
+    }
+    ts.isVoidExpression = isVoidExpression;
+    function isAwaitExpression(node) {
+        return node.kind === 206;
+    }
+    ts.isAwaitExpression = isAwaitExpression;
+    function isPrefixUnaryExpression(node) {
+        return node.kind === 207;
+    }
+    ts.isPrefixUnaryExpression = isPrefixUnaryExpression;
+    function isPostfixUnaryExpression(node) {
+        return node.kind === 208;
+    }
+    ts.isPostfixUnaryExpression = isPostfixUnaryExpression;
+    function isBinaryExpression(node) {
+        return node.kind === 209;
+    }
+    ts.isBinaryExpression = isBinaryExpression;
+    function isConditionalExpression(node) {
+        return node.kind === 210;
+    }
+    ts.isConditionalExpression = isConditionalExpression;
+    function isTemplateExpression(node) {
+        return node.kind === 211;
+    }
+    ts.isTemplateExpression = isTemplateExpression;
+    function isYieldExpression(node) {
+        return node.kind === 212;
+    }
+    ts.isYieldExpression = isYieldExpression;
+    function isSpreadElement(node) {
+        return node.kind === 213;
+    }
+    ts.isSpreadElement = isSpreadElement;
+    function isClassExpression(node) {
+        return node.kind === 214;
+    }
+    ts.isClassExpression = isClassExpression;
+    function isOmittedExpression(node) {
+        return node.kind === 215;
+    }
+    ts.isOmittedExpression = isOmittedExpression;
+    function isExpressionWithTypeArguments(node) {
+        return node.kind === 216;
+    }
+    ts.isExpressionWithTypeArguments = isExpressionWithTypeArguments;
+    function isAsExpression(node) {
+        return node.kind === 217;
+    }
+    ts.isAsExpression = isAsExpression;
+    function isNonNullExpression(node) {
+        return node.kind === 218;
+    }
+    ts.isNonNullExpression = isNonNullExpression;
+    function isNonNullChain(node) {
+        return isNonNullExpression(node) && !!(node.flags & 32);
+    }
+    ts.isNonNullChain = isNonNullChain;
+    function isMetaProperty(node) {
+        return node.kind === 219;
+    }
+    ts.isMetaProperty = isMetaProperty;
+    function isTemplateSpan(node) {
+        return node.kind === 221;
+    }
+    ts.isTemplateSpan = isTemplateSpan;
+    function isSemicolonClassElement(node) {
+        return node.kind === 222;
+    }
+    ts.isSemicolonClassElement = isSemicolonClassElement;
+    function isBlock(node) {
+        return node.kind === 223;
+    }
+    ts.isBlock = isBlock;
+    function isVariableStatement(node) {
+        return node.kind === 225;
+    }
+    ts.isVariableStatement = isVariableStatement;
+    function isEmptyStatement(node) {
+        return node.kind === 224;
+    }
+    ts.isEmptyStatement = isEmptyStatement;
+    function isExpressionStatement(node) {
+        return node.kind === 226;
+    }
+    ts.isExpressionStatement = isExpressionStatement;
+    function isIfStatement(node) {
+        return node.kind === 227;
+    }
+    ts.isIfStatement = isIfStatement;
+    function isDoStatement(node) {
+        return node.kind === 228;
+    }
+    ts.isDoStatement = isDoStatement;
+    function isWhileStatement(node) {
+        return node.kind === 229;
+    }
+    ts.isWhileStatement = isWhileStatement;
+    function isForStatement(node) {
+        return node.kind === 230;
+    }
+    ts.isForStatement = isForStatement;
+    function isForInStatement(node) {
+        return node.kind === 231;
+    }
+    ts.isForInStatement = isForInStatement;
+    function isForOfStatement(node) {
+        return node.kind === 232;
+    }
+    ts.isForOfStatement = isForOfStatement;
+    function isContinueStatement(node) {
+        return node.kind === 233;
+    }
+    ts.isContinueStatement = isContinueStatement;
+    function isBreakStatement(node) {
+        return node.kind === 234;
+    }
+    ts.isBreakStatement = isBreakStatement;
+    function isBreakOrContinueStatement(node) {
+        return node.kind === 234 || node.kind === 233;
+    }
+    ts.isBreakOrContinueStatement = isBreakOrContinueStatement;
+    function isReturnStatement(node) {
+        return node.kind === 235;
+    }
+    ts.isReturnStatement = isReturnStatement;
+    function isWithStatement(node) {
+        return node.kind === 236;
+    }
+    ts.isWithStatement = isWithStatement;
+    function isSwitchStatement(node) {
+        return node.kind === 237;
+    }
+    ts.isSwitchStatement = isSwitchStatement;
+    function isLabeledStatement(node) {
+        return node.kind === 238;
+    }
+    ts.isLabeledStatement = isLabeledStatement;
+    function isThrowStatement(node) {
+        return node.kind === 239;
+    }
+    ts.isThrowStatement = isThrowStatement;
+    function isTryStatement(node) {
+        return node.kind === 240;
+    }
+    ts.isTryStatement = isTryStatement;
+    function isDebuggerStatement(node) {
+        return node.kind === 241;
+    }
+    ts.isDebuggerStatement = isDebuggerStatement;
+    function isVariableDeclaration(node) {
+        return node.kind === 242;
+    }
+    ts.isVariableDeclaration = isVariableDeclaration;
+    function isVariableDeclarationList(node) {
+        return node.kind === 243;
+    }
+    ts.isVariableDeclarationList = isVariableDeclarationList;
+    function isFunctionDeclaration(node) {
+        return node.kind === 244;
+    }
+    ts.isFunctionDeclaration = isFunctionDeclaration;
+    function isClassDeclaration(node) {
+        return node.kind === 245;
+    }
+    ts.isClassDeclaration = isClassDeclaration;
+    function isInterfaceDeclaration(node) {
+        return node.kind === 246;
+    }
+    ts.isInterfaceDeclaration = isInterfaceDeclaration;
+    function isTypeAliasDeclaration(node) {
+        return node.kind === 247;
+    }
+    ts.isTypeAliasDeclaration = isTypeAliasDeclaration;
+    function isEnumDeclaration(node) {
+        return node.kind === 248;
+    }
+    ts.isEnumDeclaration = isEnumDeclaration;
+    function isModuleDeclaration(node) {
+        return node.kind === 249;
+    }
+    ts.isModuleDeclaration = isModuleDeclaration;
+    function isModuleBlock(node) {
+        return node.kind === 250;
+    }
+    ts.isModuleBlock = isModuleBlock;
+    function isCaseBlock(node) {
+        return node.kind === 251;
+    }
+    ts.isCaseBlock = isCaseBlock;
+    function isNamespaceExportDeclaration(node) {
+        return node.kind === 252;
+    }
+    ts.isNamespaceExportDeclaration = isNamespaceExportDeclaration;
+    function isImportEqualsDeclaration(node) {
+        return node.kind === 253;
+    }
+    ts.isImportEqualsDeclaration = isImportEqualsDeclaration;
+    function isImportDeclaration(node) {
+        return node.kind === 254;
+    }
+    ts.isImportDeclaration = isImportDeclaration;
+    function isImportClause(node) {
+        return node.kind === 255;
+    }
+    ts.isImportClause = isImportClause;
+    function isNamespaceImport(node) {
+        return node.kind === 256;
+    }
+    ts.isNamespaceImport = isNamespaceImport;
+    function isNamespaceExport(node) {
+        return node.kind === 262;
+    }
+    ts.isNamespaceExport = isNamespaceExport;
+    function isNamedExportBindings(node) {
+        return node.kind === 262 || node.kind === 261;
+    }
+    ts.isNamedExportBindings = isNamedExportBindings;
+    function isNamedImports(node) {
+        return node.kind === 257;
+    }
+    ts.isNamedImports = isNamedImports;
+    function isImportSpecifier(node) {
+        return node.kind === 258;
+    }
+    ts.isImportSpecifier = isImportSpecifier;
+    function isExportAssignment(node) {
+        return node.kind === 259;
+    }
+    ts.isExportAssignment = isExportAssignment;
+    function isExportDeclaration(node) {
+        return node.kind === 260;
+    }
+    ts.isExportDeclaration = isExportDeclaration;
+    function isNamedExports(node) {
+        return node.kind === 261;
+    }
+    ts.isNamedExports = isNamedExports;
+    function isExportSpecifier(node) {
+        return node.kind === 263;
+    }
+    ts.isExportSpecifier = isExportSpecifier;
+    function isMissingDeclaration(node) {
+        return node.kind === 264;
+    }
+    ts.isMissingDeclaration = isMissingDeclaration;
+    function isExternalModuleReference(node) {
+        return node.kind === 265;
+    }
+    ts.isExternalModuleReference = isExternalModuleReference;
+    function isJsxElement(node) {
+        return node.kind === 266;
+    }
+    ts.isJsxElement = isJsxElement;
+    function isJsxSelfClosingElement(node) {
+        return node.kind === 267;
+    }
+    ts.isJsxSelfClosingElement = isJsxSelfClosingElement;
+    function isJsxOpeningElement(node) {
+        return node.kind === 268;
+    }
+    ts.isJsxOpeningElement = isJsxOpeningElement;
+    function isJsxClosingElement(node) {
+        return node.kind === 269;
+    }
+    ts.isJsxClosingElement = isJsxClosingElement;
+    function isJsxFragment(node) {
+        return node.kind === 270;
+    }
+    ts.isJsxFragment = isJsxFragment;
+    function isJsxOpeningFragment(node) {
+        return node.kind === 271;
+    }
+    ts.isJsxOpeningFragment = isJsxOpeningFragment;
+    function isJsxClosingFragment(node) {
+        return node.kind === 272;
+    }
+    ts.isJsxClosingFragment = isJsxClosingFragment;
+    function isJsxAttribute(node) {
+        return node.kind === 273;
+    }
+    ts.isJsxAttribute = isJsxAttribute;
+    function isJsxAttributes(node) {
+        return node.kind === 274;
+    }
+    ts.isJsxAttributes = isJsxAttributes;
+    function isJsxSpreadAttribute(node) {
+        return node.kind === 275;
+    }
+    ts.isJsxSpreadAttribute = isJsxSpreadAttribute;
+    function isJsxExpression(node) {
+        return node.kind === 276;
+    }
+    ts.isJsxExpression = isJsxExpression;
+    function isCaseClause(node) {
+        return node.kind === 277;
+    }
+    ts.isCaseClause = isCaseClause;
+    function isDefaultClause(node) {
+        return node.kind === 278;
+    }
+    ts.isDefaultClause = isDefaultClause;
+    function isHeritageClause(node) {
+        return node.kind === 279;
+    }
+    ts.isHeritageClause = isHeritageClause;
+    function isCatchClause(node) {
+        return node.kind === 280;
+    }
+    ts.isCatchClause = isCatchClause;
+    function isPropertyAssignment(node) {
+        return node.kind === 281;
+    }
+    ts.isPropertyAssignment = isPropertyAssignment;
+    function isShorthandPropertyAssignment(node) {
+        return node.kind === 282;
+    }
+    ts.isShorthandPropertyAssignment = isShorthandPropertyAssignment;
+    function isSpreadAssignment(node) {
+        return node.kind === 283;
+    }
+    ts.isSpreadAssignment = isSpreadAssignment;
+    function isEnumMember(node) {
+        return node.kind === 284;
+    }
+    ts.isEnumMember = isEnumMember;
+    function isSourceFile(node) {
+        return node.kind === 290;
+    }
+    ts.isSourceFile = isSourceFile;
+    function isBundle(node) {
+        return node.kind === 291;
+    }
+    ts.isBundle = isBundle;
+    function isUnparsedSource(node) {
+        return node.kind === 292;
+    }
+    ts.isUnparsedSource = isUnparsedSource;
+    function isUnparsedPrepend(node) {
+        return node.kind === 286;
+    }
+    ts.isUnparsedPrepend = isUnparsedPrepend;
+    function isUnparsedTextLike(node) {
+        switch (node.kind) {
+            case 287:
+            case 288:
+                return true;
+            default:
+                return false;
+        }
+    }
+    ts.isUnparsedTextLike = isUnparsedTextLike;
+    function isUnparsedNode(node) {
+        return isUnparsedTextLike(node) ||
+            node.kind === 285 ||
+            node.kind === 289;
+    }
+    ts.isUnparsedNode = isUnparsedNode;
+    function isJSDocTypeExpression(node) {
+        return node.kind === 294;
+    }
+    ts.isJSDocTypeExpression = isJSDocTypeExpression;
+    function isJSDocAllType(node) {
+        return node.kind === 295;
+    }
+    ts.isJSDocAllType = isJSDocAllType;
+    function isJSDocUnknownType(node) {
+        return node.kind === 296;
+    }
+    ts.isJSDocUnknownType = isJSDocUnknownType;
+    function isJSDocNullableType(node) {
+        return node.kind === 297;
+    }
+    ts.isJSDocNullableType = isJSDocNullableType;
+    function isJSDocNonNullableType(node) {
+        return node.kind === 298;
+    }
+    ts.isJSDocNonNullableType = isJSDocNonNullableType;
+    function isJSDocOptionalType(node) {
+        return node.kind === 299;
+    }
+    ts.isJSDocOptionalType = isJSDocOptionalType;
+    function isJSDocFunctionType(node) {
+        return node.kind === 300;
+    }
+    ts.isJSDocFunctionType = isJSDocFunctionType;
+    function isJSDocVariadicType(node) {
+        return node.kind === 301;
+    }
+    ts.isJSDocVariadicType = isJSDocVariadicType;
+    function isJSDoc(node) {
+        return node.kind === 303;
+    }
+    ts.isJSDoc = isJSDoc;
+    function isJSDocAuthorTag(node) {
+        return node.kind === 309;
+    }
+    ts.isJSDocAuthorTag = isJSDocAuthorTag;
+    function isJSDocAugmentsTag(node) {
+        return node.kind === 307;
+    }
+    ts.isJSDocAugmentsTag = isJSDocAugmentsTag;
+    function isJSDocImplementsTag(node) {
+        return node.kind === 308;
+    }
+    ts.isJSDocImplementsTag = isJSDocImplementsTag;
+    function isJSDocClassTag(node) {
+        return node.kind === 310;
+    }
+    ts.isJSDocClassTag = isJSDocClassTag;
+    function isJSDocPublicTag(node) {
+        return node.kind === 311;
+    }
+    ts.isJSDocPublicTag = isJSDocPublicTag;
+    function isJSDocPrivateTag(node) {
+        return node.kind === 312;
+    }
+    ts.isJSDocPrivateTag = isJSDocPrivateTag;
+    function isJSDocProtectedTag(node) {
+        return node.kind === 313;
+    }
+    ts.isJSDocProtectedTag = isJSDocProtectedTag;
+    function isJSDocReadonlyTag(node) {
+        return node.kind === 314;
+    }
+    ts.isJSDocReadonlyTag = isJSDocReadonlyTag;
+    function isJSDocEnumTag(node) {
+        return node.kind === 316;
+    }
+    ts.isJSDocEnumTag = isJSDocEnumTag;
+    function isJSDocThisTag(node) {
+        return node.kind === 319;
+    }
+    ts.isJSDocThisTag = isJSDocThisTag;
+    function isJSDocParameterTag(node) {
+        return node.kind === 317;
+    }
+    ts.isJSDocParameterTag = isJSDocParameterTag;
+    function isJSDocReturnTag(node) {
+        return node.kind === 318;
+    }
+    ts.isJSDocReturnTag = isJSDocReturnTag;
+    function isJSDocTypeTag(node) {
+        return node.kind === 320;
+    }
+    ts.isJSDocTypeTag = isJSDocTypeTag;
+    function isJSDocTemplateTag(node) {
+        return node.kind === 321;
+    }
+    ts.isJSDocTemplateTag = isJSDocTemplateTag;
+    function isJSDocTypedefTag(node) {
+        return node.kind === 322;
+    }
+    ts.isJSDocTypedefTag = isJSDocTypedefTag;
+    function isJSDocPropertyTag(node) {
+        return node.kind === 323;
+    }
+    ts.isJSDocPropertyTag = isJSDocPropertyTag;
+    function isJSDocPropertyLikeTag(node) {
+        return node.kind === 323 || node.kind === 317;
+    }
+    ts.isJSDocPropertyLikeTag = isJSDocPropertyLikeTag;
+    function isJSDocTypeLiteral(node) {
+        return node.kind === 304;
+    }
+    ts.isJSDocTypeLiteral = isJSDocTypeLiteral;
+    function isJSDocCallbackTag(node) {
+        return node.kind === 315;
+    }
+    ts.isJSDocCallbackTag = isJSDocCallbackTag;
+    function isJSDocSignature(node) {
+        return node.kind === 305;
+    }
+    ts.isJSDocSignature = isJSDocSignature;
+    function isSyntaxList(n) {
+        return n.kind === 324;
+    }
+    ts.isSyntaxList = isSyntaxList;
+    function isNode(node) {
+        return isNodeKind(node.kind);
+    }
+    ts.isNode = isNode;
+    function isNodeKind(kind) {
+        return kind >= 153;
+    }
+    ts.isNodeKind = isNodeKind;
+    function isToken(n) {
+        return n.kind >= 0 && n.kind <= 152;
+    }
+    ts.isToken = isToken;
+    function isNodeArray(array) {
+        return array.hasOwnProperty("pos") && array.hasOwnProperty("end");
+    }
+    ts.isNodeArray = isNodeArray;
+    function isLiteralKind(kind) {
+        return 8 <= kind && kind <= 14;
+    }
+    ts.isLiteralKind = isLiteralKind;
+    function isLiteralExpression(node) {
+        return isLiteralKind(node.kind);
+    }
+    ts.isLiteralExpression = isLiteralExpression;
+    function isTemplateLiteralKind(kind) {
+        return 14 <= kind && kind <= 17;
+    }
+    ts.isTemplateLiteralKind = isTemplateLiteralKind;
+    function isTemplateLiteralToken(node) {
+        return isTemplateLiteralKind(node.kind);
+    }
+    ts.isTemplateLiteralToken = isTemplateLiteralToken;
+    function isTemplateMiddleOrTemplateTail(node) {
+        var kind = node.kind;
+        return kind === 16
+            || kind === 17;
+    }
+    ts.isTemplateMiddleOrTemplateTail = isTemplateMiddleOrTemplateTail;
+    function isImportOrExportSpecifier(node) {
+        return isImportSpecifier(node) || isExportSpecifier(node);
+    }
+    ts.isImportOrExportSpecifier = isImportOrExportSpecifier;
+    function isTypeOnlyImportOrExportDeclaration(node) {
+        switch (node.kind) {
+            case 258:
+            case 263:
+                return node.parent.parent.isTypeOnly;
+            case 256:
+                return node.parent.isTypeOnly;
+            case 255:
+                return node.isTypeOnly;
+            default:
+                return false;
+        }
+    }
+    ts.isTypeOnlyImportOrExportDeclaration = isTypeOnlyImportOrExportDeclaration;
+    function isStringTextContainingNode(node) {
+        return node.kind === 10 || isTemplateLiteralKind(node.kind);
+    }
+    ts.isStringTextContainingNode = isStringTextContainingNode;
+    function isGeneratedIdentifier(node) {
+        return isIdentifier(node) && (node.autoGenerateFlags & 7) > 0;
+    }
+    ts.isGeneratedIdentifier = isGeneratedIdentifier;
+    function isPrivateIdentifierPropertyDeclaration(node) {
+        return isPropertyDeclaration(node) && isPrivateIdentifier(node.name);
+    }
+    ts.isPrivateIdentifierPropertyDeclaration = isPrivateIdentifierPropertyDeclaration;
+    function isPrivateIdentifierPropertyAccessExpression(node) {
+        return isPropertyAccessExpression(node) && isPrivateIdentifier(node.name);
+    }
+    ts.isPrivateIdentifierPropertyAccessExpression = isPrivateIdentifierPropertyAccessExpression;
+    function isModifierKind(token) {
+        switch (token) {
+            case 122:
+            case 126:
+            case 81:
+            case 130:
+            case 84:
+            case 89:
+            case 119:
+            case 117:
+            case 118:
+            case 138:
+            case 120:
+                return true;
+        }
+        return false;
+    }
+    ts.isModifierKind = isModifierKind;
+    function isParameterPropertyModifier(kind) {
+        return !!(ts.modifierToFlag(kind) & 92);
+    }
+    ts.isParameterPropertyModifier = isParameterPropertyModifier;
+    function isClassMemberModifier(idToken) {
+        return isParameterPropertyModifier(idToken) || idToken === 120;
+    }
+    ts.isClassMemberModifier = isClassMemberModifier;
+    function isModifier(node) {
+        return isModifierKind(node.kind);
+    }
+    ts.isModifier = isModifier;
+    function isEntityName(node) {
+        var kind = node.kind;
+        return kind === 153
+            || kind === 75;
+    }
+    ts.isEntityName = isEntityName;
+    function isPropertyName(node) {
+        var kind = node.kind;
+        return kind === 75
+            || kind === 76
+            || kind === 10
+            || kind === 8
+            || kind === 154;
+    }
+    ts.isPropertyName = isPropertyName;
+    function isBindingName(node) {
+        var kind = node.kind;
+        return kind === 75
+            || kind === 189
+            || kind === 190;
+    }
+    ts.isBindingName = isBindingName;
+    function isFunctionLike(node) {
+        return node && isFunctionLikeKind(node.kind);
+    }
+    ts.isFunctionLike = isFunctionLike;
+    function isFunctionLikeDeclaration(node) {
+        return node && isFunctionLikeDeclarationKind(node.kind);
+    }
+    ts.isFunctionLikeDeclaration = isFunctionLikeDeclaration;
+    function isFunctionLikeDeclarationKind(kind) {
+        switch (kind) {
+            case 244:
+            case 161:
+            case 162:
+            case 163:
+            case 164:
+            case 201:
+            case 202:
+                return true;
+            default:
+                return false;
+        }
+    }
+    function isFunctionLikeKind(kind) {
+        switch (kind) {
+            case 160:
+            case 165:
+            case 305:
+            case 166:
+            case 167:
+            case 170:
+            case 300:
+            case 171:
+                return true;
+            default:
+                return isFunctionLikeDeclarationKind(kind);
+        }
+    }
+    ts.isFunctionLikeKind = isFunctionLikeKind;
+    function isFunctionOrModuleBlock(node) {
+        return isSourceFile(node) || isModuleBlock(node) || isBlock(node) && isFunctionLike(node.parent);
+    }
+    ts.isFunctionOrModuleBlock = isFunctionOrModuleBlock;
+    function isClassElement(node) {
+        var kind = node.kind;
+        return kind === 162
+            || kind === 159
+            || kind === 161
+            || kind === 163
+            || kind === 164
+            || kind === 167
+            || kind === 222;
+    }
+    ts.isClassElement = isClassElement;
+    function isClassLike(node) {
+        return node && (node.kind === 245 || node.kind === 214);
+    }
+    ts.isClassLike = isClassLike;
+    function isAccessor(node) {
+        return node && (node.kind === 163 || node.kind === 164);
+    }
+    ts.isAccessor = isAccessor;
+    function isMethodOrAccessor(node) {
+        switch (node.kind) {
+            case 161:
+            case 163:
+            case 164:
+                return true;
+            default:
+                return false;
+        }
+    }
+    ts.isMethodOrAccessor = isMethodOrAccessor;
+    function isTypeElement(node) {
+        var kind = node.kind;
+        return kind === 166
+            || kind === 165
+            || kind === 158
+            || kind === 160
+            || kind === 167;
+    }
+    ts.isTypeElement = isTypeElement;
+    function isClassOrTypeElement(node) {
+        return isTypeElement(node) || isClassElement(node);
+    }
+    ts.isClassOrTypeElement = isClassOrTypeElement;
+    function isObjectLiteralElementLike(node) {
+        var kind = node.kind;
+        return kind === 281
+            || kind === 282
+            || kind === 283
+            || kind === 161
+            || kind === 163
+            || kind === 164;
+    }
+    ts.isObjectLiteralElementLike = isObjectLiteralElementLike;
+    function isTypeNode(node) {
+        return ts.isTypeNodeKind(node.kind);
+    }
+    ts.isTypeNode = isTypeNode;
+    function isFunctionOrConstructorTypeNode(node) {
+        switch (node.kind) {
+            case 170:
+            case 171:
+                return true;
+        }
+        return false;
+    }
+    ts.isFunctionOrConstructorTypeNode = isFunctionOrConstructorTypeNode;
+    function isBindingPattern(node) {
+        if (node) {
+            var kind = node.kind;
+            return kind === 190
+                || kind === 189;
+        }
+        return false;
+    }
+    ts.isBindingPattern = isBindingPattern;
+    function isAssignmentPattern(node) {
+        var kind = node.kind;
+        return kind === 192
+            || kind === 193;
+    }
+    ts.isAssignmentPattern = isAssignmentPattern;
+    function isArrayBindingElement(node) {
+        var kind = node.kind;
+        return kind === 191
+            || kind === 215;
+    }
+    ts.isArrayBindingElement = isArrayBindingElement;
+    function isDeclarationBindingElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 242:
+            case 156:
+            case 191:
+                return true;
+        }
+        return false;
+    }
+    ts.isDeclarationBindingElement = isDeclarationBindingElement;
+    function isBindingOrAssignmentPattern(node) {
+        return isObjectBindingOrAssignmentPattern(node)
+            || isArrayBindingOrAssignmentPattern(node);
+    }
+    ts.isBindingOrAssignmentPattern = isBindingOrAssignmentPattern;
+    function isObjectBindingOrAssignmentPattern(node) {
+        switch (node.kind) {
+            case 189:
+            case 193:
+                return true;
+        }
+        return false;
+    }
+    ts.isObjectBindingOrAssignmentPattern = isObjectBindingOrAssignmentPattern;
+    function isArrayBindingOrAssignmentPattern(node) {
+        switch (node.kind) {
+            case 190:
+            case 192:
+                return true;
+        }
+        return false;
+    }
+    ts.isArrayBindingOrAssignmentPattern = isArrayBindingOrAssignmentPattern;
+    function isPropertyAccessOrQualifiedNameOrImportTypeNode(node) {
+        var kind = node.kind;
+        return kind === 194
+            || kind === 153
+            || kind === 188;
+    }
+    ts.isPropertyAccessOrQualifiedNameOrImportTypeNode = isPropertyAccessOrQualifiedNameOrImportTypeNode;
+    function isPropertyAccessOrQualifiedName(node) {
+        var kind = node.kind;
+        return kind === 194
+            || kind === 153;
+    }
+    ts.isPropertyAccessOrQualifiedName = isPropertyAccessOrQualifiedName;
+    function isCallLikeExpression(node) {
+        switch (node.kind) {
+            case 268:
+            case 267:
+            case 196:
+            case 197:
+            case 198:
+            case 157:
+                return true;
+            default:
+                return false;
+        }
+    }
+    ts.isCallLikeExpression = isCallLikeExpression;
+    function isCallOrNewExpression(node) {
+        return node.kind === 196 || node.kind === 197;
+    }
+    ts.isCallOrNewExpression = isCallOrNewExpression;
+    function isTemplateLiteral(node) {
+        var kind = node.kind;
+        return kind === 211
+            || kind === 14;
+    }
+    ts.isTemplateLiteral = isTemplateLiteral;
+    function isLeftHandSideExpression(node) {
+        return isLeftHandSideExpressionKind(skipPartiallyEmittedExpressions(node).kind);
+    }
+    ts.isLeftHandSideExpression = isLeftHandSideExpression;
+    function isLeftHandSideExpressionKind(kind) {
+        switch (kind) {
+            case 194:
+            case 195:
+            case 197:
+            case 196:
+            case 266:
+            case 267:
+            case 270:
+            case 198:
+            case 192:
+            case 200:
+            case 193:
+            case 214:
+            case 201:
+            case 75:
+            case 13:
+            case 8:
+            case 9:
+            case 10:
+            case 14:
+            case 211:
+            case 91:
+            case 100:
+            case 104:
+            case 106:
+            case 102:
+            case 218:
+            case 219:
+            case 96:
+                return true;
+            default:
+                return false;
+        }
+    }
+    function isUnaryExpression(node) {
+        return isUnaryExpressionKind(skipPartiallyEmittedExpressions(node).kind);
+    }
+    ts.isUnaryExpression = isUnaryExpression;
+    function isUnaryExpressionKind(kind) {
+        switch (kind) {
+            case 207:
+            case 208:
+            case 203:
+            case 204:
+            case 205:
+            case 206:
+            case 199:
+                return true;
+            default:
+                return isLeftHandSideExpressionKind(kind);
+        }
+    }
+    function isUnaryExpressionWithWrite(expr) {
+        switch (expr.kind) {
+            case 208:
+                return true;
+            case 207:
+                return expr.operator === 45 ||
+                    expr.operator === 46;
+            default:
+                return false;
+        }
+    }
+    ts.isUnaryExpressionWithWrite = isUnaryExpressionWithWrite;
+    function isExpression(node) {
+        return isExpressionKind(skipPartiallyEmittedExpressions(node).kind);
+    }
+    ts.isExpression = isExpression;
+    function isExpressionKind(kind) {
+        switch (kind) {
+            case 210:
+            case 212:
+            case 202:
+            case 209:
+            case 213:
+            case 217:
+            case 215:
+            case 327:
+            case 326:
+                return true;
+            default:
+                return isUnaryExpressionKind(kind);
+        }
+    }
+    function isAssertionExpression(node) {
+        var kind = node.kind;
+        return kind === 199
+            || kind === 217;
+    }
+    ts.isAssertionExpression = isAssertionExpression;
+    function isPartiallyEmittedExpression(node) {
+        return node.kind === 326;
+    }
+    ts.isPartiallyEmittedExpression = isPartiallyEmittedExpression;
+    function isNotEmittedStatement(node) {
+        return node.kind === 325;
+    }
+    ts.isNotEmittedStatement = isNotEmittedStatement;
+    function isSyntheticReference(node) {
+        return node.kind === 330;
+    }
+    ts.isSyntheticReference = isSyntheticReference;
+    function isNotEmittedOrPartiallyEmittedNode(node) {
+        return isNotEmittedStatement(node)
+            || isPartiallyEmittedExpression(node);
+    }
+    ts.isNotEmittedOrPartiallyEmittedNode = isNotEmittedOrPartiallyEmittedNode;
+    function isIterationStatement(node, lookInLabeledStatements) {
+        switch (node.kind) {
+            case 230:
+            case 231:
+            case 232:
+            case 228:
+            case 229:
+                return true;
+            case 238:
+                return lookInLabeledStatements && isIterationStatement(node.statement, lookInLabeledStatements);
+        }
+        return false;
+    }
+    ts.isIterationStatement = isIterationStatement;
+    function isScopeMarker(node) {
+        return isExportAssignment(node) || isExportDeclaration(node);
+    }
+    ts.isScopeMarker = isScopeMarker;
+    function hasScopeMarker(statements) {
+        return ts.some(statements, isScopeMarker);
+    }
+    ts.hasScopeMarker = hasScopeMarker;
+    function needsScopeMarker(result) {
+        return !ts.isAnyImportOrReExport(result) && !isExportAssignment(result) && !ts.hasModifier(result, 1) && !ts.isAmbientModule(result);
+    }
+    ts.needsScopeMarker = needsScopeMarker;
+    function isExternalModuleIndicator(result) {
+        return ts.isAnyImportOrReExport(result) || isExportAssignment(result) || ts.hasModifier(result, 1);
+    }
+    ts.isExternalModuleIndicator = isExternalModuleIndicator;
+    function isForInOrOfStatement(node) {
+        return node.kind === 231 || node.kind === 232;
+    }
+    ts.isForInOrOfStatement = isForInOrOfStatement;
+    function isConciseBody(node) {
+        return isBlock(node)
+            || isExpression(node);
+    }
+    ts.isConciseBody = isConciseBody;
+    function isFunctionBody(node) {
+        return isBlock(node);
+    }
+    ts.isFunctionBody = isFunctionBody;
+    function isForInitializer(node) {
+        return isVariableDeclarationList(node)
+            || isExpression(node);
+    }
+    ts.isForInitializer = isForInitializer;
+    function isModuleBody(node) {
+        var kind = node.kind;
+        return kind === 250
+            || kind === 249
+            || kind === 75;
+    }
+    ts.isModuleBody = isModuleBody;
+    function isNamespaceBody(node) {
+        var kind = node.kind;
+        return kind === 250
+            || kind === 249;
+    }
+    ts.isNamespaceBody = isNamespaceBody;
+    function isJSDocNamespaceBody(node) {
+        var kind = node.kind;
+        return kind === 75
+            || kind === 249;
+    }
+    ts.isJSDocNamespaceBody = isJSDocNamespaceBody;
+    function isNamedImportBindings(node) {
+        var kind = node.kind;
+        return kind === 257
+            || kind === 256;
+    }
+    ts.isNamedImportBindings = isNamedImportBindings;
+    function isModuleOrEnumDeclaration(node) {
+        return node.kind === 249 || node.kind === 248;
+    }
+    ts.isModuleOrEnumDeclaration = isModuleOrEnumDeclaration;
+    function isDeclarationKind(kind) {
+        return kind === 202
+            || kind === 191
+            || kind === 245
+            || kind === 214
+            || kind === 162
+            || kind === 248
+            || kind === 284
+            || kind === 263
+            || kind === 244
+            || kind === 201
+            || kind === 163
+            || kind === 255
+            || kind === 253
+            || kind === 258
+            || kind === 246
+            || kind === 273
+            || kind === 161
+            || kind === 160
+            || kind === 249
+            || kind === 252
+            || kind === 256
+            || kind === 262
+            || kind === 156
+            || kind === 281
+            || kind === 159
+            || kind === 158
+            || kind === 164
+            || kind === 282
+            || kind === 247
+            || kind === 155
+            || kind === 242
+            || kind === 322
+            || kind === 315
+            || kind === 323;
+    }
+    function isDeclarationStatementKind(kind) {
+        return kind === 244
+            || kind === 264
+            || kind === 245
+            || kind === 246
+            || kind === 247
+            || kind === 248
+            || kind === 249
+            || kind === 254
+            || kind === 253
+            || kind === 260
+            || kind === 259
+            || kind === 252;
+    }
+    function isStatementKindButNotDeclarationKind(kind) {
+        return kind === 234
+            || kind === 233
+            || kind === 241
+            || kind === 228
+            || kind === 226
+            || kind === 224
+            || kind === 231
+            || kind === 232
+            || kind === 230
+            || kind === 227
+            || kind === 238
+            || kind === 235
+            || kind === 237
+            || kind === 239
+            || kind === 240
+            || kind === 225
+            || kind === 229
+            || kind === 236
+            || kind === 325
+            || kind === 329
+            || kind === 328;
+    }
+    function isDeclaration(node) {
+        if (node.kind === 155) {
+            return (node.parent && node.parent.kind !== 321) || ts.isInJSFile(node);
+        }
+        return isDeclarationKind(node.kind);
+    }
+    ts.isDeclaration = isDeclaration;
+    function isDeclarationStatement(node) {
+        return isDeclarationStatementKind(node.kind);
+    }
+    ts.isDeclarationStatement = isDeclarationStatement;
+    function isStatementButNotDeclaration(node) {
+        return isStatementKindButNotDeclarationKind(node.kind);
+    }
+    ts.isStatementButNotDeclaration = isStatementButNotDeclaration;
+    function isStatement(node) {
+        var kind = node.kind;
+        return isStatementKindButNotDeclarationKind(kind)
+            || isDeclarationStatementKind(kind)
+            || isBlockStatement(node);
+    }
+    ts.isStatement = isStatement;
+    function isBlockStatement(node) {
+        if (node.kind !== 223)
+            return false;
+        if (node.parent !== undefined) {
+            if (node.parent.kind === 240 || node.parent.kind === 280) {
+                return false;
+            }
+        }
+        return !ts.isFunctionBlock(node);
+    }
+    function isModuleReference(node) {
+        var kind = node.kind;
+        return kind === 265
+            || kind === 153
+            || kind === 75;
+    }
+    ts.isModuleReference = isModuleReference;
+    function isJsxTagNameExpression(node) {
+        var kind = node.kind;
+        return kind === 104
+            || kind === 75
+            || kind === 194;
+    }
+    ts.isJsxTagNameExpression = isJsxTagNameExpression;
+    function isJsxChild(node) {
+        var kind = node.kind;
+        return kind === 266
+            || kind === 276
+            || kind === 267
+            || kind === 11
+            || kind === 270;
+    }
+    ts.isJsxChild = isJsxChild;
+    function isJsxAttributeLike(node) {
+        var kind = node.kind;
+        return kind === 273
+            || kind === 275;
+    }
+    ts.isJsxAttributeLike = isJsxAttributeLike;
+    function isStringLiteralOrJsxExpression(node) {
+        var kind = node.kind;
+        return kind === 10
+            || kind === 276;
+    }
+    ts.isStringLiteralOrJsxExpression = isStringLiteralOrJsxExpression;
+    function isJsxOpeningLikeElement(node) {
+        var kind = node.kind;
+        return kind === 268
+            || kind === 267;
+    }
+    ts.isJsxOpeningLikeElement = isJsxOpeningLikeElement;
+    function isCaseOrDefaultClause(node) {
+        var kind = node.kind;
+        return kind === 277
+            || kind === 278;
+    }
+    ts.isCaseOrDefaultClause = isCaseOrDefaultClause;
+    function isJSDocNode(node) {
+        return node.kind >= 294 && node.kind <= 323;
+    }
+    ts.isJSDocNode = isJSDocNode;
+    function isJSDocCommentContainingNode(node) {
+        return node.kind === 303 || node.kind === 302 || isJSDocTag(node) || isJSDocTypeLiteral(node) || isJSDocSignature(node);
+    }
+    ts.isJSDocCommentContainingNode = isJSDocCommentContainingNode;
+    function isJSDocTag(node) {
+        return node.kind >= 306 && node.kind <= 323;
+    }
+    ts.isJSDocTag = isJSDocTag;
+    function isSetAccessor(node) {
+        return node.kind === 164;
+    }
+    ts.isSetAccessor = isSetAccessor;
+    function isGetAccessor(node) {
+        return node.kind === 163;
+    }
+    ts.isGetAccessor = isGetAccessor;
+    function hasJSDocNodes(node) {
+        var jsDoc = node.jsDoc;
+        return !!jsDoc && jsDoc.length > 0;
+    }
+    ts.hasJSDocNodes = hasJSDocNodes;
+    function hasType(node) {
+        return !!node.type;
+    }
+    ts.hasType = hasType;
+    function hasInitializer(node) {
+        return !!node.initializer;
+    }
+    ts.hasInitializer = hasInitializer;
+    function hasOnlyExpressionInitializer(node) {
+        switch (node.kind) {
+            case 242:
+            case 156:
+            case 191:
+            case 158:
+            case 159:
+            case 281:
+            case 284:
+                return true;
+            default:
+                return false;
+        }
+    }
+    ts.hasOnlyExpressionInitializer = hasOnlyExpressionInitializer;
+    function isObjectLiteralElement(node) {
+        return node.kind === 273 || node.kind === 275 || isObjectLiteralElementLike(node);
+    }
+    ts.isObjectLiteralElement = isObjectLiteralElement;
+    function isTypeReferenceType(node) {
+        return node.kind === 169 || node.kind === 216;
+    }
+    ts.isTypeReferenceType = isTypeReferenceType;
+    var MAX_SMI_X86 = 1073741823;
+    function guessIndentation(lines) {
+        var indentation = MAX_SMI_X86;
+        for (var _i = 0, lines_1 = lines; _i < lines_1.length; _i++) {
+            var line = lines_1[_i];
+            if (!line.length) {
+                continue;
+            }
+            var i = 0;
+            for (; i < line.length && i < indentation; i++) {
+                if (!ts.isWhiteSpaceLike(line.charCodeAt(i))) {
+                    break;
+                }
+            }
+            if (i < indentation) {
+                indentation = i;
+            }
+            if (indentation === 0) {
+                return 0;
+            }
+        }
+        return indentation === MAX_SMI_X86 ? undefined : indentation;
+    }
+    ts.guessIndentation = guessIndentation;
+    function isStringLiteralLike(node) {
+        return node.kind === 10 || node.kind === 14;
+    }
+    ts.isStringLiteralLike = isStringLiteralLike;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    ts.resolvingEmptyArray = [];
+    ts.emptyMap = ts.createMap();
+    ts.emptyUnderscoreEscapedMap = ts.emptyMap;
+    ts.externalHelpersModuleNameText = "tslib";
+    ts.defaultMaximumTruncationLength = 160;
+    ts.noTruncationMaximumTruncationLength = 1000000;
+    function getDeclarationOfKind(symbol, kind) {
+        var declarations = symbol.declarations;
+        if (declarations) {
+            for (var _i = 0, declarations_1 = declarations; _i < declarations_1.length; _i++) {
+                var declaration = declarations_1[_i];
+                if (declaration.kind === kind) {
+                    return declaration;
+                }
+            }
+        }
+        return undefined;
+    }
+    ts.getDeclarationOfKind = getDeclarationOfKind;
+    function createUnderscoreEscapedMap() {
+        return new ts.Map();
+    }
+    ts.createUnderscoreEscapedMap = createUnderscoreEscapedMap;
+    function hasEntries(map) {
+        return !!map && !!map.size;
+    }
+    ts.hasEntries = hasEntries;
+    function createSymbolTable(symbols) {
+        var result = ts.createMap();
+        if (symbols) {
+            for (var _i = 0, symbols_1 = symbols; _i < symbols_1.length; _i++) {
+                var symbol = symbols_1[_i];
+                result.set(symbol.escapedName, symbol);
+            }
+        }
+        return result;
+    }
+    ts.createSymbolTable = createSymbolTable;
+    function isTransientSymbol(symbol) {
+        return (symbol.flags & 33554432) !== 0;
+    }
+    ts.isTransientSymbol = isTransientSymbol;
+    var stringWriter = createSingleLineStringWriter();
+    function createSingleLineStringWriter() {
+        var str = "";
+        var writeText = function (text) { return str += text; };
+        return {
+            getText: function () { return str; },
+            write: writeText,
+            rawWrite: writeText,
+            writeKeyword: writeText,
+            writeOperator: writeText,
+            writePunctuation: writeText,
+            writeSpace: writeText,
+            writeStringLiteral: writeText,
+            writeLiteral: writeText,
+            writeParameter: writeText,
+            writeProperty: writeText,
+            writeSymbol: function (s, _) { return writeText(s); },
+            writeTrailingSemicolon: writeText,
+            writeComment: writeText,
+            getTextPos: function () { return str.length; },
+            getLine: function () { return 0; },
+            getColumn: function () { return 0; },
+            getIndent: function () { return 0; },
+            isAtStartOfLine: function () { return false; },
+            hasTrailingComment: function () { return false; },
+            hasTrailingWhitespace: function () { return !!str.length && ts.isWhiteSpaceLike(str.charCodeAt(str.length - 1)); },
+            writeLine: function () { return str += " "; },
+            increaseIndent: ts.noop,
+            decreaseIndent: ts.noop,
+            clear: function () { return str = ""; },
+            trackSymbol: ts.noop,
+            reportInaccessibleThisError: ts.noop,
+            reportInaccessibleUniqueSymbolError: ts.noop,
+            reportPrivateInBaseOfClassExpression: ts.noop,
+        };
+    }
+    function changesAffectModuleResolution(oldOptions, newOptions) {
+        return oldOptions.configFilePath !== newOptions.configFilePath ||
+            optionsHaveModuleResolutionChanges(oldOptions, newOptions);
+    }
+    ts.changesAffectModuleResolution = changesAffectModuleResolution;
+    function optionsHaveModuleResolutionChanges(oldOptions, newOptions) {
+        return ts.moduleResolutionOptionDeclarations.some(function (o) {
+            return !isJsonEqual(getCompilerOptionValue(oldOptions, o), getCompilerOptionValue(newOptions, o));
+        });
+    }
+    ts.optionsHaveModuleResolutionChanges = optionsHaveModuleResolutionChanges;
+    function findAncestor(node, callback) {
+        while (node) {
+            var result = callback(node);
+            if (result === "quit") {
+                return undefined;
+            }
+            else if (result) {
+                return node;
+            }
+            node = node.parent;
+        }
+        return undefined;
+    }
+    ts.findAncestor = findAncestor;
+    function forEachAncestor(node, callback) {
+        while (true) {
+            var res = callback(node);
+            if (res === "quit")
+                return undefined;
+            if (res !== undefined)
+                return res;
+            if (ts.isSourceFile(node))
+                return undefined;
+            node = node.parent;
+        }
+    }
+    ts.forEachAncestor = forEachAncestor;
+    function forEachEntry(map, callback) {
+        var iterator = map.entries();
+        for (var iterResult = iterator.next(); !iterResult.done; iterResult = iterator.next()) {
+            var _a = iterResult.value, key = _a[0], value = _a[1];
+            var result = callback(value, key);
+            if (result) {
+                return result;
+            }
+        }
+        return undefined;
+    }
+    ts.forEachEntry = forEachEntry;
+    function forEachKey(map, callback) {
+        var iterator = map.keys();
+        for (var iterResult = iterator.next(); !iterResult.done; iterResult = iterator.next()) {
+            var result = callback(iterResult.value);
+            if (result) {
+                return result;
+            }
+        }
+        return undefined;
+    }
+    ts.forEachKey = forEachKey;
+    function copyEntries(source, target) {
+        source.forEach(function (value, key) {
+            target.set(key, value);
+        });
+    }
+    ts.copyEntries = copyEntries;
+    function arrayToSet(array, makeKey) {
+        return ts.arrayToMap(array, makeKey || (function (s) { return s; }), ts.returnTrue);
+    }
+    ts.arrayToSet = arrayToSet;
+    function cloneMap(map) {
+        var clone = ts.createMap();
+        copyEntries(map, clone);
+        return clone;
+    }
+    ts.cloneMap = cloneMap;
+    function usingSingleLineStringWriter(action) {
+        var oldString = stringWriter.getText();
+        try {
+            action(stringWriter);
+            return stringWriter.getText();
+        }
+        finally {
+            stringWriter.clear();
+            stringWriter.writeKeyword(oldString);
+        }
+    }
+    ts.usingSingleLineStringWriter = usingSingleLineStringWriter;
+    function getFullWidth(node) {
+        return node.end - node.pos;
+    }
+    ts.getFullWidth = getFullWidth;
+    function getResolvedModule(sourceFile, moduleNameText) {
+        return sourceFile && sourceFile.resolvedModules && sourceFile.resolvedModules.get(moduleNameText);
+    }
+    ts.getResolvedModule = getResolvedModule;
+    function setResolvedModule(sourceFile, moduleNameText, resolvedModule) {
+        if (!sourceFile.resolvedModules) {
+            sourceFile.resolvedModules = ts.createMap();
+        }
+        sourceFile.resolvedModules.set(moduleNameText, resolvedModule);
+    }
+    ts.setResolvedModule = setResolvedModule;
+    function setResolvedTypeReferenceDirective(sourceFile, typeReferenceDirectiveName, resolvedTypeReferenceDirective) {
+        if (!sourceFile.resolvedTypeReferenceDirectiveNames) {
+            sourceFile.resolvedTypeReferenceDirectiveNames = ts.createMap();
+        }
+        sourceFile.resolvedTypeReferenceDirectiveNames.set(typeReferenceDirectiveName, resolvedTypeReferenceDirective);
+    }
+    ts.setResolvedTypeReferenceDirective = setResolvedTypeReferenceDirective;
+    function projectReferenceIsEqualTo(oldRef, newRef) {
+        return oldRef.path === newRef.path &&
+            !oldRef.prepend === !newRef.prepend &&
+            !oldRef.circular === !newRef.circular;
+    }
+    ts.projectReferenceIsEqualTo = projectReferenceIsEqualTo;
+    function moduleResolutionIsEqualTo(oldResolution, newResolution) {
+        return oldResolution.isExternalLibraryImport === newResolution.isExternalLibraryImport &&
+            oldResolution.extension === newResolution.extension &&
+            oldResolution.resolvedFileName === newResolution.resolvedFileName &&
+            oldResolution.originalPath === newResolution.originalPath &&
+            packageIdIsEqual(oldResolution.packageId, newResolution.packageId);
+    }
+    ts.moduleResolutionIsEqualTo = moduleResolutionIsEqualTo;
+    function packageIdIsEqual(a, b) {
+        return a === b || !!a && !!b && a.name === b.name && a.subModuleName === b.subModuleName && a.version === b.version;
+    }
+    function packageIdToString(_a) {
+        var name = _a.name, subModuleName = _a.subModuleName, version = _a.version;
+        var fullName = subModuleName ? name + "/" + subModuleName : name;
+        return fullName + "@" + version;
+    }
+    ts.packageIdToString = packageIdToString;
+    function typeDirectiveIsEqualTo(oldResolution, newResolution) {
+        return oldResolution.resolvedFileName === newResolution.resolvedFileName && oldResolution.primary === newResolution.primary;
+    }
+    ts.typeDirectiveIsEqualTo = typeDirectiveIsEqualTo;
+    function hasChangesInResolutions(names, newResolutions, oldResolutions, comparer) {
+        ts.Debug.assert(names.length === newResolutions.length);
+        for (var i = 0; i < names.length; i++) {
+            var newResolution = newResolutions[i];
+            var oldResolution = oldResolutions && oldResolutions.get(names[i]);
+            var changed = oldResolution
+                ? !newResolution || !comparer(oldResolution, newResolution)
+                : newResolution;
+            if (changed) {
+                return true;
+            }
+        }
+        return false;
+    }
+    ts.hasChangesInResolutions = hasChangesInResolutions;
+    function containsParseError(node) {
+        aggregateChildData(node);
+        return (node.flags & 262144) !== 0;
+    }
+    ts.containsParseError = containsParseError;
+    function aggregateChildData(node) {
+        if (!(node.flags & 524288)) {
+            var thisNodeOrAnySubNodesHasError = ((node.flags & 65536) !== 0) ||
+                ts.forEachChild(node, containsParseError);
+            if (thisNodeOrAnySubNodesHasError) {
+                node.flags |= 262144;
+            }
+            node.flags |= 524288;
+        }
+    }
+    function getSourceFileOfNode(node) {
+        while (node && node.kind !== 290) {
+            node = node.parent;
+        }
+        return node;
+    }
+    ts.getSourceFileOfNode = getSourceFileOfNode;
+    function isStatementWithLocals(node) {
+        switch (node.kind) {
+            case 223:
+            case 251:
+            case 230:
+            case 231:
+            case 232:
+                return true;
+        }
+        return false;
+    }
+    ts.isStatementWithLocals = isStatementWithLocals;
+    function getStartPositionOfLine(line, sourceFile) {
+        ts.Debug.assert(line >= 0);
+        return ts.getLineStarts(sourceFile)[line];
+    }
+    ts.getStartPositionOfLine = getStartPositionOfLine;
+    function nodePosToString(node) {
+        var file = getSourceFileOfNode(node);
+        var loc = ts.getLineAndCharacterOfPosition(file, node.pos);
+        return file.fileName + "(" + (loc.line + 1) + "," + (loc.character + 1) + ")";
+    }
+    ts.nodePosToString = nodePosToString;
+    function getEndLinePosition(line, sourceFile) {
+        ts.Debug.assert(line >= 0);
+        var lineStarts = ts.getLineStarts(sourceFile);
+        var lineIndex = line;
+        var sourceText = sourceFile.text;
+        if (lineIndex + 1 === lineStarts.length) {
+            return sourceText.length - 1;
+        }
+        else {
+            var start = lineStarts[lineIndex];
+            var pos = lineStarts[lineIndex + 1] - 1;
+            ts.Debug.assert(ts.isLineBreak(sourceText.charCodeAt(pos)));
+            while (start <= pos && ts.isLineBreak(sourceText.charCodeAt(pos))) {
+                pos--;
+            }
+            return pos;
+        }
+    }
+    ts.getEndLinePosition = getEndLinePosition;
+    function isFileLevelUniqueName(sourceFile, name, hasGlobalName) {
+        return !(hasGlobalName && hasGlobalName(name)) && !sourceFile.identifiers.has(name);
+    }
+    ts.isFileLevelUniqueName = isFileLevelUniqueName;
+    function nodeIsMissing(node) {
+        if (node === undefined) {
+            return true;
+        }
+        return node.pos === node.end && node.pos >= 0 && node.kind !== 1;
+    }
+    ts.nodeIsMissing = nodeIsMissing;
+    function nodeIsPresent(node) {
+        return !nodeIsMissing(node);
+    }
+    ts.nodeIsPresent = nodeIsPresent;
+    function insertStatementsAfterPrologue(to, from, isPrologueDirective) {
+        if (from === undefined || from.length === 0)
+            return to;
+        var statementIndex = 0;
+        for (; statementIndex < to.length; ++statementIndex) {
+            if (!isPrologueDirective(to[statementIndex])) {
+                break;
+            }
+        }
+        to.splice.apply(to, __spreadArrays([statementIndex, 0], from));
+        return to;
+    }
+    function insertStatementAfterPrologue(to, statement, isPrologueDirective) {
+        if (statement === undefined)
+            return to;
+        var statementIndex = 0;
+        for (; statementIndex < to.length; ++statementIndex) {
+            if (!isPrologueDirective(to[statementIndex])) {
+                break;
+            }
+        }
+        to.splice(statementIndex, 0, statement);
+        return to;
+    }
+    function isAnyPrologueDirective(node) {
+        return isPrologueDirective(node) || !!(getEmitFlags(node) & 1048576);
+    }
+    function insertStatementsAfterStandardPrologue(to, from) {
+        return insertStatementsAfterPrologue(to, from, isPrologueDirective);
+    }
+    ts.insertStatementsAfterStandardPrologue = insertStatementsAfterStandardPrologue;
+    function insertStatementsAfterCustomPrologue(to, from) {
+        return insertStatementsAfterPrologue(to, from, isAnyPrologueDirective);
+    }
+    ts.insertStatementsAfterCustomPrologue = insertStatementsAfterCustomPrologue;
+    function insertStatementAfterStandardPrologue(to, statement) {
+        return insertStatementAfterPrologue(to, statement, isPrologueDirective);
+    }
+    ts.insertStatementAfterStandardPrologue = insertStatementAfterStandardPrologue;
+    function insertStatementAfterCustomPrologue(to, statement) {
+        return insertStatementAfterPrologue(to, statement, isAnyPrologueDirective);
+    }
+    ts.insertStatementAfterCustomPrologue = insertStatementAfterCustomPrologue;
+    function isRecognizedTripleSlashComment(text, commentPos, commentEnd) {
+        if (text.charCodeAt(commentPos + 1) === 47 &&
+            commentPos + 2 < commentEnd &&
+            text.charCodeAt(commentPos + 2) === 47) {
+            var textSubStr = text.substring(commentPos, commentEnd);
+            return textSubStr.match(ts.fullTripleSlashReferencePathRegEx) ||
+                textSubStr.match(ts.fullTripleSlashAMDReferencePathRegEx) ||
+                textSubStr.match(fullTripleSlashReferenceTypeReferenceDirectiveRegEx) ||
+                textSubStr.match(defaultLibReferenceRegEx) ?
+                true : false;
+        }
+        return false;
+    }
+    ts.isRecognizedTripleSlashComment = isRecognizedTripleSlashComment;
+    function isPinnedComment(text, start) {
+        return text.charCodeAt(start + 1) === 42 &&
+            text.charCodeAt(start + 2) === 33;
+    }
+    ts.isPinnedComment = isPinnedComment;
+    function createCommentDirectivesMap(sourceFile, commentDirectives) {
+        var directivesByLine = ts.createMapFromEntries(commentDirectives.map(function (commentDirective) { return ([
+            "" + ts.getLineAndCharacterOfPosition(sourceFile, commentDirective.range.end).line,
+            commentDirective,
+        ]); }));
+        var usedLines = ts.createMap();
+        return { getUnusedExpectations: getUnusedExpectations, markUsed: markUsed };
+        function getUnusedExpectations() {
+            return ts.arrayFrom(directivesByLine.entries())
+                .filter(function (_a) {
+                var line = _a[0], directive = _a[1];
+                return directive.type === 0 && !usedLines.get(line);
+            })
+                .map(function (_a) {
+                var _ = _a[0], directive = _a[1];
+                return directive;
+            });
+        }
+        function markUsed(line) {
+            if (!directivesByLine.has("" + line)) {
+                return false;
+            }
+            usedLines.set("" + line, true);
+            return true;
+        }
+    }
+    ts.createCommentDirectivesMap = createCommentDirectivesMap;
+    function getTokenPosOfNode(node, sourceFile, includeJsDoc) {
+        if (nodeIsMissing(node)) {
+            return node.pos;
+        }
+        if (ts.isJSDocNode(node)) {
+            return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos, false, true);
+        }
+        if (includeJsDoc && ts.hasJSDocNodes(node)) {
+            return getTokenPosOfNode(node.jsDoc[0], sourceFile);
+        }
+        if (node.kind === 324 && node._children.length > 0) {
+            return getTokenPosOfNode(node._children[0], sourceFile, includeJsDoc);
+        }
+        return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos);
+    }
+    ts.getTokenPosOfNode = getTokenPosOfNode;
+    function getNonDecoratorTokenPosOfNode(node, sourceFile) {
+        if (nodeIsMissing(node) || !node.decorators) {
+            return getTokenPosOfNode(node, sourceFile);
+        }
+        return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.decorators.end);
+    }
+    ts.getNonDecoratorTokenPosOfNode = getNonDecoratorTokenPosOfNode;
+    function getSourceTextOfNodeFromSourceFile(sourceFile, node, includeTrivia) {
+        if (includeTrivia === void 0) { includeTrivia = false; }
+        return getTextOfNodeFromSourceText(sourceFile.text, node, includeTrivia);
+    }
+    ts.getSourceTextOfNodeFromSourceFile = getSourceTextOfNodeFromSourceFile;
+    function isJSDocTypeExpressionOrChild(node) {
+        return !!findAncestor(node, ts.isJSDocTypeExpression);
+    }
+    function getTextOfNodeFromSourceText(sourceText, node, includeTrivia) {
+        if (includeTrivia === void 0) { includeTrivia = false; }
+        if (nodeIsMissing(node)) {
+            return "";
+        }
+        var text = sourceText.substring(includeTrivia ? node.pos : ts.skipTrivia(sourceText, node.pos), node.end);
+        if (isJSDocTypeExpressionOrChild(node)) {
+            text = text.replace(/(^|\r?\n|\r)\s*\*\s*/g, "$1");
+        }
+        return text;
+    }
+    ts.getTextOfNodeFromSourceText = getTextOfNodeFromSourceText;
+    function getTextOfNode(node, includeTrivia) {
+        if (includeTrivia === void 0) { includeTrivia = false; }
+        return getSourceTextOfNodeFromSourceFile(getSourceFileOfNode(node), node, includeTrivia);
+    }
+    ts.getTextOfNode = getTextOfNode;
+    function getPos(range) {
+        return range.pos;
+    }
+    function indexOfNode(nodeArray, node) {
+        return ts.binarySearch(nodeArray, node, getPos, ts.compareValues);
+    }
+    ts.indexOfNode = indexOfNode;
+    function getEmitFlags(node) {
+        var emitNode = node.emitNode;
+        return emitNode && emitNode.flags || 0;
+    }
+    ts.getEmitFlags = getEmitFlags;
+    function getLiteralText(node, sourceFile, neverAsciiEscape, jsxAttributeEscape) {
+        if (!nodeIsSynthesized(node) && node.parent && !((ts.isNumericLiteral(node) && node.numericLiteralFlags & 512) ||
+            ts.isBigIntLiteral(node))) {
+            return getSourceTextOfNodeFromSourceFile(sourceFile, node);
+        }
+        switch (node.kind) {
+            case 10: {
+                var escapeText = jsxAttributeEscape ? escapeJsxAttributeString :
+                    neverAsciiEscape || (getEmitFlags(node) & 16777216) ? escapeString :
+                        escapeNonAsciiString;
+                if (node.singleQuote) {
+                    return "'" + escapeText(node.text, 39) + "'";
+                }
+                else {
+                    return '"' + escapeText(node.text, 34) + '"';
+                }
+            }
+            case 14:
+            case 15:
+            case 16:
+            case 17: {
+                var escapeText = neverAsciiEscape || (getEmitFlags(node) & 16777216) ? escapeString :
+                    escapeNonAsciiString;
+                var rawText = node.rawText || escapeTemplateSubstitution(escapeText(node.text, 96));
+                switch (node.kind) {
+                    case 14:
+                        return "`" + rawText + "`";
+                    case 15:
+                        return "`" + rawText + "${";
+                    case 16:
+                        return "}" + rawText + "${";
+                    case 17:
+                        return "}" + rawText + "`";
+                }
+                break;
+            }
+            case 8:
+            case 9:
+            case 13:
+                return node.text;
+        }
+        return ts.Debug.fail("Literal kind '" + node.kind + "' not accounted for.");
+    }
+    ts.getLiteralText = getLiteralText;
+    function getTextOfConstantValue(value) {
+        return ts.isString(value) ? '"' + escapeNonAsciiString(value) + '"' : "" + value;
+    }
+    ts.getTextOfConstantValue = getTextOfConstantValue;
+    function makeIdentifierFromModuleName(moduleName) {
+        return ts.getBaseFileName(moduleName).replace(/^(\d)/, "_$1").replace(/\W/g, "_");
+    }
+    ts.makeIdentifierFromModuleName = makeIdentifierFromModuleName;
+    function isBlockOrCatchScoped(declaration) {
+        return (ts.getCombinedNodeFlags(declaration) & 3) !== 0 ||
+            isCatchClauseVariableDeclarationOrBindingElement(declaration);
+    }
+    ts.isBlockOrCatchScoped = isBlockOrCatchScoped;
+    function isCatchClauseVariableDeclarationOrBindingElement(declaration) {
+        var node = getRootDeclaration(declaration);
+        return node.kind === 242 && node.parent.kind === 280;
+    }
+    ts.isCatchClauseVariableDeclarationOrBindingElement = isCatchClauseVariableDeclarationOrBindingElement;
+    function isAmbientModule(node) {
+        return ts.isModuleDeclaration(node) && (node.name.kind === 10 || isGlobalScopeAugmentation(node));
+    }
+    ts.isAmbientModule = isAmbientModule;
+    function isModuleWithStringLiteralName(node) {
+        return ts.isModuleDeclaration(node) && node.name.kind === 10;
+    }
+    ts.isModuleWithStringLiteralName = isModuleWithStringLiteralName;
+    function isNonGlobalAmbientModule(node) {
+        return ts.isModuleDeclaration(node) && ts.isStringLiteral(node.name);
+    }
+    ts.isNonGlobalAmbientModule = isNonGlobalAmbientModule;
+    function isEffectiveModuleDeclaration(node) {
+        return ts.isModuleDeclaration(node) || ts.isIdentifier(node);
+    }
+    ts.isEffectiveModuleDeclaration = isEffectiveModuleDeclaration;
+    function isShorthandAmbientModuleSymbol(moduleSymbol) {
+        return isShorthandAmbientModule(moduleSymbol.valueDeclaration);
+    }
+    ts.isShorthandAmbientModuleSymbol = isShorthandAmbientModuleSymbol;
+    function isShorthandAmbientModule(node) {
+        return node && node.kind === 249 && (!node.body);
+    }
+    function isBlockScopedContainerTopLevel(node) {
+        return node.kind === 290 ||
+            node.kind === 249 ||
+            ts.isFunctionLike(node);
+    }
+    ts.isBlockScopedContainerTopLevel = isBlockScopedContainerTopLevel;
+    function isGlobalScopeAugmentation(module) {
+        return !!(module.flags & 1024);
+    }
+    ts.isGlobalScopeAugmentation = isGlobalScopeAugmentation;
+    function isExternalModuleAugmentation(node) {
+        return isAmbientModule(node) && isModuleAugmentationExternal(node);
+    }
+    ts.isExternalModuleAugmentation = isExternalModuleAugmentation;
+    function isModuleAugmentationExternal(node) {
+        switch (node.parent.kind) {
+            case 290:
+                return ts.isExternalModule(node.parent);
+            case 250:
+                return isAmbientModule(node.parent.parent) && ts.isSourceFile(node.parent.parent.parent) && !ts.isExternalModule(node.parent.parent.parent);
+        }
+        return false;
+    }
+    ts.isModuleAugmentationExternal = isModuleAugmentationExternal;
+    function getNonAugmentationDeclaration(symbol) {
+        return ts.find(symbol.declarations, function (d) { return !isExternalModuleAugmentation(d) && !(ts.isModuleDeclaration(d) && isGlobalScopeAugmentation(d)); });
+    }
+    ts.getNonAugmentationDeclaration = getNonAugmentationDeclaration;
+    function isEffectiveExternalModule(node, compilerOptions) {
+        return ts.isExternalModule(node) || compilerOptions.isolatedModules || ((getEmitModuleKind(compilerOptions) === ts.ModuleKind.CommonJS) && !!node.commonJsModuleIndicator);
+    }
+    ts.isEffectiveExternalModule = isEffectiveExternalModule;
+    function isEffectiveStrictModeSourceFile(node, compilerOptions) {
+        switch (node.scriptKind) {
+            case 1:
+            case 3:
+            case 2:
+            case 4:
+                break;
+            default:
+                return false;
+        }
+        if (node.isDeclarationFile) {
+            return false;
+        }
+        if (getStrictOptionValue(compilerOptions, "alwaysStrict")) {
+            return true;
+        }
+        if (ts.startsWithUseStrict(node.statements)) {
+            return true;
+        }
+        if (ts.isExternalModule(node) || compilerOptions.isolatedModules) {
+            if (getEmitModuleKind(compilerOptions) >= ts.ModuleKind.ES2015) {
+                return true;
+            }
+            return !compilerOptions.noImplicitUseStrict;
+        }
+        return false;
+    }
+    ts.isEffectiveStrictModeSourceFile = isEffectiveStrictModeSourceFile;
+    function isBlockScope(node, parentNode) {
+        switch (node.kind) {
+            case 290:
+            case 251:
+            case 280:
+            case 249:
+            case 230:
+            case 231:
+            case 232:
+            case 162:
+            case 161:
+            case 163:
+            case 164:
+            case 244:
+            case 201:
+            case 202:
+                return true;
+            case 223:
+                return !ts.isFunctionLike(parentNode);
+        }
+        return false;
+    }
+    ts.isBlockScope = isBlockScope;
+    function isDeclarationWithTypeParameters(node) {
+        switch (node.kind) {
+            case 315:
+            case 322:
+            case 305:
+                return true;
+            default:
+                ts.assertType(node);
+                return isDeclarationWithTypeParameterChildren(node);
+        }
+    }
+    ts.isDeclarationWithTypeParameters = isDeclarationWithTypeParameters;
+    function isDeclarationWithTypeParameterChildren(node) {
+        switch (node.kind) {
+            case 165:
+            case 166:
+            case 160:
+            case 167:
+            case 170:
+            case 171:
+            case 300:
+            case 245:
+            case 214:
+            case 246:
+            case 247:
+            case 321:
+            case 244:
+            case 161:
+            case 162:
+            case 163:
+            case 164:
+            case 201:
+            case 202:
+                return true;
+            default:
+                ts.assertType(node);
+                return false;
+        }
+    }
+    ts.isDeclarationWithTypeParameterChildren = isDeclarationWithTypeParameterChildren;
+    function isAnyImportSyntax(node) {
+        switch (node.kind) {
+            case 254:
+            case 253:
+                return true;
+            default:
+                return false;
+        }
+    }
+    ts.isAnyImportSyntax = isAnyImportSyntax;
+    function isLateVisibilityPaintedStatement(node) {
+        switch (node.kind) {
+            case 254:
+            case 253:
+            case 225:
+            case 245:
+            case 244:
+            case 249:
+            case 247:
+            case 246:
+            case 248:
+                return true;
+            default:
+                return false;
+        }
+    }
+    ts.isLateVisibilityPaintedStatement = isLateVisibilityPaintedStatement;
+    function isAnyImportOrReExport(node) {
+        return isAnyImportSyntax(node) || ts.isExportDeclaration(node);
+    }
+    ts.isAnyImportOrReExport = isAnyImportOrReExport;
+    function getEnclosingBlockScopeContainer(node) {
+        return findAncestor(node.parent, function (current) { return isBlockScope(current, current.parent); });
+    }
+    ts.getEnclosingBlockScopeContainer = getEnclosingBlockScopeContainer;
+    function declarationNameToString(name) {
+        return !name || getFullWidth(name) === 0 ? "(Missing)" : getTextOfNode(name);
+    }
+    ts.declarationNameToString = declarationNameToString;
+    function getNameFromIndexInfo(info) {
+        return info.declaration ? declarationNameToString(info.declaration.parameters[0].name) : undefined;
+    }
+    ts.getNameFromIndexInfo = getNameFromIndexInfo;
+    function isComputedNonLiteralName(name) {
+        return name.kind === 154 && !isStringOrNumericLiteralLike(name.expression);
+    }
+    ts.isComputedNonLiteralName = isComputedNonLiteralName;
+    function getTextOfPropertyName(name) {
+        switch (name.kind) {
+            case 75:
+            case 76:
+                return name.escapedText;
+            case 10:
+            case 8:
+            case 14:
+                return ts.escapeLeadingUnderscores(name.text);
+            case 154:
+                if (isStringOrNumericLiteralLike(name.expression))
+                    return ts.escapeLeadingUnderscores(name.expression.text);
+                return ts.Debug.fail("Text of property name cannot be read from non-literal-valued ComputedPropertyNames");
+            default:
+                return ts.Debug.assertNever(name);
+        }
+    }
+    ts.getTextOfPropertyName = getTextOfPropertyName;
+    function entityNameToString(name) {
+        switch (name.kind) {
+            case 104:
+                return "this";
+            case 76:
+            case 75:
+                return getFullWidth(name) === 0 ? ts.idText(name) : getTextOfNode(name);
+            case 153:
+                return entityNameToString(name.left) + "." + entityNameToString(name.right);
+            case 194:
+                if (ts.isIdentifier(name.name) || ts.isPrivateIdentifier(name.name)) {
+                    return entityNameToString(name.expression) + "." + entityNameToString(name.name);
+                }
+                else {
+                    return ts.Debug.assertNever(name.name);
+                }
+            default:
+                return ts.Debug.assertNever(name);
+        }
+    }
+    ts.entityNameToString = entityNameToString;
+    function createDiagnosticForNode(node, message, arg0, arg1, arg2, arg3) {
+        var sourceFile = getSourceFileOfNode(node);
+        return createDiagnosticForNodeInSourceFile(sourceFile, node, message, arg0, arg1, arg2, arg3);
+    }
+    ts.createDiagnosticForNode = createDiagnosticForNode;
+    function createDiagnosticForNodeArray(sourceFile, nodes, message, arg0, arg1, arg2, arg3) {
+        var start = ts.skipTrivia(sourceFile.text, nodes.pos);
+        return createFileDiagnostic(sourceFile, start, nodes.end - start, message, arg0, arg1, arg2, arg3);
+    }
+    ts.createDiagnosticForNodeArray = createDiagnosticForNodeArray;
+    function createDiagnosticForNodeInSourceFile(sourceFile, node, message, arg0, arg1, arg2, arg3) {
+        var span = getErrorSpanForNode(sourceFile, node);
+        return createFileDiagnostic(sourceFile, span.start, span.length, message, arg0, arg1, arg2, arg3);
+    }
+    ts.createDiagnosticForNodeInSourceFile = createDiagnosticForNodeInSourceFile;
+    function createDiagnosticForNodeFromMessageChain(node, messageChain, relatedInformation) {
+        var sourceFile = getSourceFileOfNode(node);
+        var span = getErrorSpanForNode(sourceFile, node);
+        return {
+            file: sourceFile,
+            start: span.start,
+            length: span.length,
+            code: messageChain.code,
+            category: messageChain.category,
+            messageText: messageChain.next ? messageChain : messageChain.messageText,
+            relatedInformation: relatedInformation
+        };
+    }
+    ts.createDiagnosticForNodeFromMessageChain = createDiagnosticForNodeFromMessageChain;
+    function createDiagnosticForRange(sourceFile, range, message) {
+        return {
+            file: sourceFile,
+            start: range.pos,
+            length: range.end - range.pos,
+            code: message.code,
+            category: message.category,
+            messageText: message.message,
+        };
+    }
+    ts.createDiagnosticForRange = createDiagnosticForRange;
+    function getSpanOfTokenAtPosition(sourceFile, pos) {
+        var scanner = ts.createScanner(sourceFile.languageVersion, true, sourceFile.languageVariant, sourceFile.text, undefined, pos);
+        scanner.scan();
+        var start = scanner.getTokenPos();
+        return ts.createTextSpanFromBounds(start, scanner.getTextPos());
+    }
+    ts.getSpanOfTokenAtPosition = getSpanOfTokenAtPosition;
+    function getErrorSpanForArrowFunction(sourceFile, node) {
+        var pos = ts.skipTrivia(sourceFile.text, node.pos);
+        if (node.body && node.body.kind === 223) {
+            var startLine = ts.getLineAndCharacterOfPosition(sourceFile, node.body.pos).line;
+            var endLine = ts.getLineAndCharacterOfPosition(sourceFile, node.body.end).line;
+            if (startLine < endLine) {
+                return ts.createTextSpan(pos, getEndLinePosition(startLine, sourceFile) - pos + 1);
+            }
+        }
+        return ts.createTextSpanFromBounds(pos, node.end);
+    }
+    function getErrorSpanForNode(sourceFile, node) {
+        var errorNode = node;
+        switch (node.kind) {
+            case 290:
+                var pos_1 = ts.skipTrivia(sourceFile.text, 0, false);
+                if (pos_1 === sourceFile.text.length) {
+                    return ts.createTextSpan(0, 0);
+                }
+                return getSpanOfTokenAtPosition(sourceFile, pos_1);
+            case 242:
+            case 191:
+            case 245:
+            case 214:
+            case 246:
+            case 249:
+            case 248:
+            case 284:
+            case 244:
+            case 201:
+            case 161:
+            case 163:
+            case 164:
+            case 247:
+            case 159:
+            case 158:
+                errorNode = node.name;
+                break;
+            case 202:
+                return getErrorSpanForArrowFunction(sourceFile, node);
+            case 277:
+            case 278:
+                var start = ts.skipTrivia(sourceFile.text, node.pos);
+                var end = node.statements.length > 0 ? node.statements[0].pos : node.end;
+                return ts.createTextSpanFromBounds(start, end);
+        }
+        if (errorNode === undefined) {
+            return getSpanOfTokenAtPosition(sourceFile, node.pos);
+        }
+        ts.Debug.assert(!ts.isJSDoc(errorNode));
+        var isMissing = nodeIsMissing(errorNode);
+        var pos = isMissing || ts.isJsxText(node)
+            ? errorNode.pos
+            : ts.skipTrivia(sourceFile.text, errorNode.pos);
+        if (isMissing) {
+            ts.Debug.assert(pos === errorNode.pos, "This failure could trigger https://github.com/Microsoft/TypeScript/issues/20809");
+            ts.Debug.assert(pos === errorNode.end, "This failure could trigger https://github.com/Microsoft/TypeScript/issues/20809");
+        }
+        else {
+            ts.Debug.assert(pos >= errorNode.pos, "This failure could trigger https://github.com/Microsoft/TypeScript/issues/20809");
+            ts.Debug.assert(pos <= errorNode.end, "This failure could trigger https://github.com/Microsoft/TypeScript/issues/20809");
+        }
+        return ts.createTextSpanFromBounds(pos, errorNode.end);
+    }
+    ts.getErrorSpanForNode = getErrorSpanForNode;
+    function isExternalOrCommonJsModule(file) {
+        return (file.externalModuleIndicator || file.commonJsModuleIndicator) !== undefined;
+    }
+    ts.isExternalOrCommonJsModule = isExternalOrCommonJsModule;
+    function isJsonSourceFile(file) {
+        return file.scriptKind === 6;
+    }
+    ts.isJsonSourceFile = isJsonSourceFile;
+    function isEnumConst(node) {
+        return !!(ts.getCombinedModifierFlags(node) & 2048);
+    }
+    ts.isEnumConst = isEnumConst;
+    function isDeclarationReadonly(declaration) {
+        return !!(ts.getCombinedModifierFlags(declaration) & 64 && !ts.isParameterPropertyDeclaration(declaration, declaration.parent));
+    }
+    ts.isDeclarationReadonly = isDeclarationReadonly;
+    function isVarConst(node) {
+        return !!(ts.getCombinedNodeFlags(node) & 2);
+    }
+    ts.isVarConst = isVarConst;
+    function isLet(node) {
+        return !!(ts.getCombinedNodeFlags(node) & 1);
+    }
+    ts.isLet = isLet;
+    function isSuperCall(n) {
+        return n.kind === 196 && n.expression.kind === 102;
+    }
+    ts.isSuperCall = isSuperCall;
+    function isImportCall(n) {
+        return n.kind === 196 && n.expression.kind === 96;
+    }
+    ts.isImportCall = isImportCall;
+    function isImportMeta(n) {
+        return ts.isMetaProperty(n)
+            && n.keywordToken === 96
+            && n.name.escapedText === "meta";
+    }
+    ts.isImportMeta = isImportMeta;
+    function isLiteralImportTypeNode(n) {
+        return ts.isImportTypeNode(n) && ts.isLiteralTypeNode(n.argument) && ts.isStringLiteral(n.argument.literal);
+    }
+    ts.isLiteralImportTypeNode = isLiteralImportTypeNode;
+    function isPrologueDirective(node) {
+        return node.kind === 226
+            && node.expression.kind === 10;
+    }
+    ts.isPrologueDirective = isPrologueDirective;
+    function isCustomPrologue(node) {
+        return !!(getEmitFlags(node) & 1048576);
+    }
+    ts.isCustomPrologue = isCustomPrologue;
+    function isHoistedFunction(node) {
+        return isCustomPrologue(node)
+            && ts.isFunctionDeclaration(node);
+    }
+    ts.isHoistedFunction = isHoistedFunction;
+    function isHoistedVariable(node) {
+        return ts.isIdentifier(node.name)
+            && !node.initializer;
+    }
+    function isHoistedVariableStatement(node) {
+        return isCustomPrologue(node)
+            && ts.isVariableStatement(node)
+            && ts.every(node.declarationList.declarations, isHoistedVariable);
+    }
+    ts.isHoistedVariableStatement = isHoistedVariableStatement;
+    function getLeadingCommentRangesOfNode(node, sourceFileOfNode) {
+        return node.kind !== 11 ? ts.getLeadingCommentRanges(sourceFileOfNode.text, node.pos) : undefined;
+    }
+    ts.getLeadingCommentRangesOfNode = getLeadingCommentRangesOfNode;
+    function getJSDocCommentRanges(node, text) {
+        var commentRanges = (node.kind === 156 ||
+            node.kind === 155 ||
+            node.kind === 201 ||
+            node.kind === 202 ||
+            node.kind === 200) ?
+            ts.concatenate(ts.getTrailingCommentRanges(text, node.pos), ts.getLeadingCommentRanges(text, node.pos)) :
+            ts.getLeadingCommentRanges(text, node.pos);
+        return ts.filter(commentRanges, function (comment) {
+            return text.charCodeAt(comment.pos + 1) === 42 &&
+                text.charCodeAt(comment.pos + 2) === 42 &&
+                text.charCodeAt(comment.pos + 3) !== 47;
+        });
+    }
+    ts.getJSDocCommentRanges = getJSDocCommentRanges;
+    ts.fullTripleSlashReferencePathRegEx = /^(\/\/\/\s*<reference\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
+    var fullTripleSlashReferenceTypeReferenceDirectiveRegEx = /^(\/\/\/\s*<reference\s+types\s*=\s*)('|")(.+?)\2.*?\/>/;
+    ts.fullTripleSlashAMDReferencePathRegEx = /^(\/\/\/\s*<amd-dependency\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
+    var defaultLibReferenceRegEx = /^(\/\/\/\s*<reference\s+no-default-lib\s*=\s*)('|")(.+?)\2\s*\/>/;
+    function isPartOfTypeNode(node) {
+        if (168 <= node.kind && node.kind <= 188) {
+            return true;
+        }
+        switch (node.kind) {
+            case 125:
+            case 148:
+            case 140:
+            case 151:
+            case 143:
+            case 128:
+            case 144:
+            case 141:
+            case 146:
+            case 137:
+                return true;
+            case 110:
+                return node.parent.kind !== 205;
+            case 216:
+                return !isExpressionWithTypeArgumentsInClassExtendsClause(node);
+            case 155:
+                return node.parent.kind === 186 || node.parent.kind === 181;
+            case 75:
+                if (node.parent.kind === 153 && node.parent.right === node) {
+                    node = node.parent;
+                }
+                else if (node.parent.kind === 194 && node.parent.name === node) {
+                    node = node.parent;
+                }
+                ts.Debug.assert(node.kind === 75 || node.kind === 153 || node.kind === 194, "'node' was expected to be a qualified name, identifier or property access in 'isPartOfTypeNode'.");
+            case 153:
+            case 194:
+            case 104: {
+                var parent = node.parent;
+                if (parent.kind === 172) {
+                    return false;
+                }
+                if (parent.kind === 188) {
+                    return !parent.isTypeOf;
+                }
+                if (168 <= parent.kind && parent.kind <= 188) {
+                    return true;
+                }
+                switch (parent.kind) {
+                    case 216:
+                        return !isExpressionWithTypeArgumentsInClassExtendsClause(parent);
+                    case 155:
+                        return node === parent.constraint;
+                    case 321:
+                        return node === parent.constraint;
+                    case 159:
+                    case 158:
+                    case 156:
+                    case 242:
+                        return node === parent.type;
+                    case 244:
+                    case 201:
+                    case 202:
+                    case 162:
+                    case 161:
+                    case 160:
+                    case 163:
+                    case 164:
+                        return node === parent.type;
+                    case 165:
+                    case 166:
+                    case 167:
+                        return node === parent.type;
+                    case 199:
+                        return node === parent.type;
+                    case 196:
+                    case 197:
+                        return ts.contains(parent.typeArguments, node);
+                    case 198:
+                        return false;
+                }
+            }
+        }
+        return false;
+    }
+    ts.isPartOfTypeNode = isPartOfTypeNode;
+    function isChildOfNodeWithKind(node, kind) {
+        while (node) {
+            if (node.kind === kind) {
+                return true;
+            }
+            node = node.parent;
+        }
+        return false;
+    }
+    ts.isChildOfNodeWithKind = isChildOfNodeWithKind;
+    function forEachReturnStatement(body, visitor) {
+        return traverse(body);
+        function traverse(node) {
+            switch (node.kind) {
+                case 235:
+                    return visitor(node);
+                case 251:
+                case 223:
+                case 227:
+                case 228:
+                case 229:
+                case 230:
+                case 231:
+                case 232:
+                case 236:
+                case 237:
+                case 277:
+                case 278:
+                case 238:
+                case 240:
+                case 280:
+                    return ts.forEachChild(node, traverse);
+            }
+        }
+    }
+    ts.forEachReturnStatement = forEachReturnStatement;
+    function forEachYieldExpression(body, visitor) {
+        return traverse(body);
+        function traverse(node) {
+            switch (node.kind) {
+                case 212:
+                    visitor(node);
+                    var operand = node.expression;
+                    if (operand) {
+                        traverse(operand);
+                    }
+                    return;
+                case 248:
+                case 246:
+                case 249:
+                case 247:
+                    return;
+                default:
+                    if (ts.isFunctionLike(node)) {
+                        if (node.name && node.name.kind === 154) {
+                            traverse(node.name.expression);
+                            return;
+                        }
+                    }
+                    else if (!isPartOfTypeNode(node)) {
+                        ts.forEachChild(node, traverse);
+                    }
+            }
+        }
+    }
+    ts.forEachYieldExpression = forEachYieldExpression;
+    function getRestParameterElementType(node) {
+        if (node && node.kind === 174) {
+            return node.elementType;
+        }
+        else if (node && node.kind === 169) {
+            return ts.singleOrUndefined(node.typeArguments);
+        }
+        else {
+            return undefined;
+        }
+    }
+    ts.getRestParameterElementType = getRestParameterElementType;
+    function getMembersOfDeclaration(node) {
+        switch (node.kind) {
+            case 246:
+            case 245:
+            case 214:
+            case 173:
+                return node.members;
+            case 193:
+                return node.properties;
+        }
+    }
+    ts.getMembersOfDeclaration = getMembersOfDeclaration;
+    function isVariableLike(node) {
+        if (node) {
+            switch (node.kind) {
+                case 191:
+                case 284:
+                case 156:
+                case 281:
+                case 159:
+                case 158:
+                case 282:
+                case 242:
+                    return true;
+            }
+        }
+        return false;
+    }
+    ts.isVariableLike = isVariableLike;
+    function isVariableLikeOrAccessor(node) {
+        return isVariableLike(node) || ts.isAccessor(node);
+    }
+    ts.isVariableLikeOrAccessor = isVariableLikeOrAccessor;
+    function isVariableDeclarationInVariableStatement(node) {
+        return node.parent.kind === 243
+            && node.parent.parent.kind === 225;
+    }
+    ts.isVariableDeclarationInVariableStatement = isVariableDeclarationInVariableStatement;
+    function isValidESSymbolDeclaration(node) {
+        return ts.isVariableDeclaration(node) ? isVarConst(node) && ts.isIdentifier(node.name) && isVariableDeclarationInVariableStatement(node) :
+            ts.isPropertyDeclaration(node) ? hasReadonlyModifier(node) && hasStaticModifier(node) :
+                ts.isPropertySignature(node) && hasReadonlyModifier(node);
+    }
+    ts.isValidESSymbolDeclaration = isValidESSymbolDeclaration;
+    function introducesArgumentsExoticObject(node) {
+        switch (node.kind) {
+            case 161:
+            case 160:
+            case 162:
+            case 163:
+            case 164:
+            case 244:
+            case 201:
+                return true;
+        }
+        return false;
+    }
+    ts.introducesArgumentsExoticObject = introducesArgumentsExoticObject;
+    function unwrapInnermostStatementOfLabel(node, beforeUnwrapLabelCallback) {
+        while (true) {
+            if (beforeUnwrapLabelCallback) {
+                beforeUnwrapLabelCallback(node);
+            }
+            if (node.statement.kind !== 238) {
+                return node.statement;
+            }
+            node = node.statement;
+        }
+    }
+    ts.unwrapInnermostStatementOfLabel = unwrapInnermostStatementOfLabel;
+    function isFunctionBlock(node) {
+        return node && node.kind === 223 && ts.isFunctionLike(node.parent);
+    }
+    ts.isFunctionBlock = isFunctionBlock;
+    function isObjectLiteralMethod(node) {
+        return node && node.kind === 161 && node.parent.kind === 193;
+    }
+    ts.isObjectLiteralMethod = isObjectLiteralMethod;
+    function isObjectLiteralOrClassExpressionMethod(node) {
+        return node.kind === 161 &&
+            (node.parent.kind === 193 ||
+                node.parent.kind === 214);
+    }
+    ts.isObjectLiteralOrClassExpressionMethod = isObjectLiteralOrClassExpressionMethod;
+    function isIdentifierTypePredicate(predicate) {
+        return predicate && predicate.kind === 1;
+    }
+    ts.isIdentifierTypePredicate = isIdentifierTypePredicate;
+    function isThisTypePredicate(predicate) {
+        return predicate && predicate.kind === 0;
+    }
+    ts.isThisTypePredicate = isThisTypePredicate;
+    function getPropertyAssignment(objectLiteral, key, key2) {
+        return objectLiteral.properties.filter(function (property) {
+            if (property.kind === 281) {
+                var propName = getTextOfPropertyName(property.name);
+                return key === propName || (!!key2 && key2 === propName);
+            }
+            return false;
+        });
+    }
+    ts.getPropertyAssignment = getPropertyAssignment;
+    function getTsConfigObjectLiteralExpression(tsConfigSourceFile) {
+        if (tsConfigSourceFile && tsConfigSourceFile.statements.length) {
+            var expression = tsConfigSourceFile.statements[0].expression;
+            return ts.tryCast(expression, ts.isObjectLiteralExpression);
+        }
+    }
+    ts.getTsConfigObjectLiteralExpression = getTsConfigObjectLiteralExpression;
+    function getTsConfigPropArrayElementValue(tsConfigSourceFile, propKey, elementValue) {
+        return ts.firstDefined(getTsConfigPropArray(tsConfigSourceFile, propKey), function (property) {
+            return ts.isArrayLiteralExpression(property.initializer) ?
+                ts.find(property.initializer.elements, function (element) { return ts.isStringLiteral(element) && element.text === elementValue; }) :
+                undefined;
+        });
+    }
+    ts.getTsConfigPropArrayElementValue = getTsConfigPropArrayElementValue;
+    function getTsConfigPropArray(tsConfigSourceFile, propKey) {
+        var jsonObjectLiteral = getTsConfigObjectLiteralExpression(tsConfigSourceFile);
+        return jsonObjectLiteral ? getPropertyAssignment(jsonObjectLiteral, propKey) : ts.emptyArray;
+    }
+    ts.getTsConfigPropArray = getTsConfigPropArray;
+    function getContainingFunction(node) {
+        return findAncestor(node.parent, ts.isFunctionLike);
+    }
+    ts.getContainingFunction = getContainingFunction;
+    function getContainingFunctionDeclaration(node) {
+        return findAncestor(node.parent, ts.isFunctionLikeDeclaration);
+    }
+    ts.getContainingFunctionDeclaration = getContainingFunctionDeclaration;
+    function getContainingClass(node) {
+        return findAncestor(node.parent, ts.isClassLike);
+    }
+    ts.getContainingClass = getContainingClass;
+    function getThisContainer(node, includeArrowFunctions) {
+        ts.Debug.assert(node.kind !== 290);
+        while (true) {
+            node = node.parent;
+            if (!node) {
+                return ts.Debug.fail();
+            }
+            switch (node.kind) {
+                case 154:
+                    if (ts.isClassLike(node.parent.parent)) {
+                        return node;
+                    }
+                    node = node.parent;
+                    break;
+                case 157:
+                    if (node.parent.kind === 156 && ts.isClassElement(node.parent.parent)) {
+                        node = node.parent.parent;
+                    }
+                    else if (ts.isClassElement(node.parent)) {
+                        node = node.parent;
+                    }
+                    break;
+                case 202:
+                    if (!includeArrowFunctions) {
+                        continue;
+                    }
+                case 244:
+                case 201:
+                case 249:
+                case 159:
+                case 158:
+                case 161:
+                case 160:
+                case 162:
+                case 163:
+                case 164:
+                case 165:
+                case 166:
+                case 167:
+                case 248:
+                case 290:
+                    return node;
+            }
+        }
+    }
+    ts.getThisContainer = getThisContainer;
+    function getNewTargetContainer(node) {
+        var container = getThisContainer(node, false);
+        if (container) {
+            switch (container.kind) {
+                case 162:
+                case 244:
+                case 201:
+                    return container;
+            }
+        }
+        return undefined;
+    }
+    ts.getNewTargetContainer = getNewTargetContainer;
+    function getSuperContainer(node, stopOnFunctions) {
+        while (true) {
+            node = node.parent;
+            if (!node) {
+                return node;
+            }
+            switch (node.kind) {
+                case 154:
+                    node = node.parent;
+                    break;
+                case 244:
+                case 201:
+                case 202:
+                    if (!stopOnFunctions) {
+                        continue;
+                    }
+                case 159:
+                case 158:
+                case 161:
+                case 160:
+                case 162:
+                case 163:
+                case 164:
+                    return node;
+                case 157:
+                    if (node.parent.kind === 156 && ts.isClassElement(node.parent.parent)) {
+                        node = node.parent.parent;
+                    }
+                    else if (ts.isClassElement(node.parent)) {
+                        node = node.parent;
+                    }
+                    break;
+            }
+        }
+    }
+    ts.getSuperContainer = getSuperContainer;
+    function getImmediatelyInvokedFunctionExpression(func) {
+        if (func.kind === 201 || func.kind === 202) {
+            var prev = func;
+            var parent = func.parent;
+            while (parent.kind === 200) {
+                prev = parent;
+                parent = parent.parent;
+            }
+            if (parent.kind === 196 && parent.expression === prev) {
+                return parent;
+            }
+        }
+    }
+    ts.getImmediatelyInvokedFunctionExpression = getImmediatelyInvokedFunctionExpression;
+    function isSuperOrSuperProperty(node) {
+        return node.kind === 102
+            || isSuperProperty(node);
+    }
+    ts.isSuperOrSuperProperty = isSuperOrSuperProperty;
+    function isSuperProperty(node) {
+        var kind = node.kind;
+        return (kind === 194 || kind === 195)
+            && node.expression.kind === 102;
+    }
+    ts.isSuperProperty = isSuperProperty;
+    function isThisProperty(node) {
+        var kind = node.kind;
+        return (kind === 194 || kind === 195)
+            && node.expression.kind === 104;
+    }
+    ts.isThisProperty = isThisProperty;
+    function getEntityNameFromTypeNode(node) {
+        switch (node.kind) {
+            case 169:
+                return node.typeName;
+            case 216:
+                return isEntityNameExpression(node.expression)
+                    ? node.expression
+                    : undefined;
+            case 75:
+            case 153:
+                return node;
+        }
+        return undefined;
+    }
+    ts.getEntityNameFromTypeNode = getEntityNameFromTypeNode;
+    function getInvokedExpression(node) {
+        switch (node.kind) {
+            case 198:
+                return node.tag;
+            case 268:
+            case 267:
+                return node.tagName;
+            default:
+                return node.expression;
+        }
+    }
+    ts.getInvokedExpression = getInvokedExpression;
+    function nodeCanBeDecorated(node, parent, grandparent) {
+        if (ts.isNamedDeclaration(node) && ts.isPrivateIdentifier(node.name)) {
+            return false;
+        }
+        switch (node.kind) {
+            case 245:
+                return true;
+            case 159:
+                return parent.kind === 245;
+            case 163:
+            case 164:
+            case 161:
+                return node.body !== undefined
+                    && parent.kind === 245;
+            case 156:
+                return parent.body !== undefined
+                    && (parent.kind === 162
+                        || parent.kind === 161
+                        || parent.kind === 164)
+                    && grandparent.kind === 245;
+        }
+        return false;
+    }
+    ts.nodeCanBeDecorated = nodeCanBeDecorated;
+    function nodeIsDecorated(node, parent, grandparent) {
+        return node.decorators !== undefined
+            && nodeCanBeDecorated(node, parent, grandparent);
+    }
+    ts.nodeIsDecorated = nodeIsDecorated;
+    function nodeOrChildIsDecorated(node, parent, grandparent) {
+        return nodeIsDecorated(node, parent, grandparent) || childIsDecorated(node, parent);
+    }
+    ts.nodeOrChildIsDecorated = nodeOrChildIsDecorated;
+    function childIsDecorated(node, parent) {
+        switch (node.kind) {
+            case 245:
+                return ts.some(node.members, function (m) { return nodeOrChildIsDecorated(m, node, parent); });
+            case 161:
+            case 164:
+                return ts.some(node.parameters, function (p) { return nodeIsDecorated(p, node, parent); });
+            default:
+                return false;
+        }
+    }
+    ts.childIsDecorated = childIsDecorated;
+    function isJSXTagName(node) {
+        var parent = node.parent;
+        if (parent.kind === 268 ||
+            parent.kind === 267 ||
+            parent.kind === 269) {
+            return parent.tagName === node;
+        }
+        return false;
+    }
+    ts.isJSXTagName = isJSXTagName;
+    function isExpressionNode(node) {
+        switch (node.kind) {
+            case 102:
+            case 100:
+            case 106:
+            case 91:
+            case 13:
+            case 192:
+            case 193:
+            case 194:
+            case 195:
+            case 196:
+            case 197:
+            case 198:
+            case 217:
+            case 199:
+            case 218:
+            case 200:
+            case 201:
+            case 214:
+            case 202:
+            case 205:
+            case 203:
+            case 204:
+            case 207:
+            case 208:
+            case 209:
+            case 210:
+            case 213:
+            case 211:
+            case 215:
+            case 266:
+            case 267:
+            case 270:
+            case 212:
+            case 206:
+            case 219:
+                return true;
+            case 153:
+                while (node.parent.kind === 153) {
+                    node = node.parent;
+                }
+                return node.parent.kind === 172 || isJSXTagName(node);
+            case 75:
+                if (node.parent.kind === 172 || isJSXTagName(node)) {
+                    return true;
+                }
+            case 8:
+            case 9:
+            case 10:
+            case 14:
+            case 104:
+                return isInExpressionContext(node);
+            default:
+                return false;
+        }
+    }
+    ts.isExpressionNode = isExpressionNode;
+    function isInExpressionContext(node) {
+        var parent = node.parent;
+        switch (parent.kind) {
+            case 242:
+            case 156:
+            case 159:
+            case 158:
+            case 284:
+            case 281:
+            case 191:
+                return parent.initializer === node;
+            case 226:
+            case 227:
+            case 228:
+            case 229:
+            case 235:
+            case 236:
+            case 237:
+            case 277:
+            case 239:
+                return parent.expression === node;
+            case 230:
+                var forStatement = parent;
+                return (forStatement.initializer === node && forStatement.initializer.kind !== 243) ||
+                    forStatement.condition === node ||
+                    forStatement.incrementor === node;
+            case 231:
+            case 232:
+                var forInStatement = parent;
+                return (forInStatement.initializer === node && forInStatement.initializer.kind !== 243) ||
+                    forInStatement.expression === node;
+            case 199:
+            case 217:
+                return node === parent.expression;
+            case 221:
+                return node === parent.expression;
+            case 154:
+                return node === parent.expression;
+            case 157:
+            case 276:
+            case 275:
+            case 283:
+                return true;
+            case 216:
+                return parent.expression === node && isExpressionWithTypeArgumentsInClassExtendsClause(parent);
+            case 282:
+                return parent.objectAssignmentInitializer === node;
+            default:
+                return isExpressionNode(parent);
+        }
+    }
+    ts.isInExpressionContext = isInExpressionContext;
+    function isPartOfTypeQuery(node) {
+        while (node.kind === 153 || node.kind === 75) {
+            node = node.parent;
+        }
+        return node.kind === 172;
+    }
+    ts.isPartOfTypeQuery = isPartOfTypeQuery;
+    function isExternalModuleImportEqualsDeclaration(node) {
+        return node.kind === 253 && node.moduleReference.kind === 265;
+    }
+    ts.isExternalModuleImportEqualsDeclaration = isExternalModuleImportEqualsDeclaration;
+    function getExternalModuleImportEqualsDeclarationExpression(node) {
+        ts.Debug.assert(isExternalModuleImportEqualsDeclaration(node));
+        return node.moduleReference.expression;
+    }
+    ts.getExternalModuleImportEqualsDeclarationExpression = getExternalModuleImportEqualsDeclarationExpression;
+    function isInternalModuleImportEqualsDeclaration(node) {
+        return node.kind === 253 && node.moduleReference.kind !== 265;
+    }
+    ts.isInternalModuleImportEqualsDeclaration = isInternalModuleImportEqualsDeclaration;
+    function isSourceFileJS(file) {
+        return isInJSFile(file);
+    }
+    ts.isSourceFileJS = isSourceFileJS;
+    function isSourceFileNotJS(file) {
+        return !isInJSFile(file);
+    }
+    ts.isSourceFileNotJS = isSourceFileNotJS;
+    function isInJSFile(node) {
+        return !!node && !!(node.flags & 131072);
+    }
+    ts.isInJSFile = isInJSFile;
+    function isInJsonFile(node) {
+        return !!node && !!(node.flags & 33554432);
+    }
+    ts.isInJsonFile = isInJsonFile;
+    function isSourceFileNotJson(file) {
+        return !isJsonSourceFile(file);
+    }
+    ts.isSourceFileNotJson = isSourceFileNotJson;
+    function isInJSDoc(node) {
+        return !!node && !!(node.flags & 4194304);
+    }
+    ts.isInJSDoc = isInJSDoc;
+    function isJSDocIndexSignature(node) {
+        return ts.isTypeReferenceNode(node) &&
+            ts.isIdentifier(node.typeName) &&
+            node.typeName.escapedText === "Object" &&
+            node.typeArguments && node.typeArguments.length === 2 &&
+            (node.typeArguments[0].kind === 143 || node.typeArguments[0].kind === 140);
+    }
+    ts.isJSDocIndexSignature = isJSDocIndexSignature;
+    function isRequireCall(callExpression, requireStringLiteralLikeArgument) {
+        if (callExpression.kind !== 196) {
+            return false;
+        }
+        var _a = callExpression, expression = _a.expression, args = _a.arguments;
+        if (expression.kind !== 75 || expression.escapedText !== "require") {
+            return false;
+        }
+        if (args.length !== 1) {
+            return false;
+        }
+        var arg = args[0];
+        return !requireStringLiteralLikeArgument || ts.isStringLiteralLike(arg);
+    }
+    ts.isRequireCall = isRequireCall;
+    function isRequireVariableDeclaration(node, requireStringLiteralLikeArgument) {
+        return ts.isVariableDeclaration(node) && !!node.initializer && isRequireCall(node.initializer, requireStringLiteralLikeArgument);
+    }
+    ts.isRequireVariableDeclaration = isRequireVariableDeclaration;
+    function isRequireVariableDeclarationStatement(node, requireStringLiteralLikeArgument) {
+        if (requireStringLiteralLikeArgument === void 0) { requireStringLiteralLikeArgument = true; }
+        return ts.isVariableStatement(node) && ts.every(node.declarationList.declarations, function (decl) { return isRequireVariableDeclaration(decl, requireStringLiteralLikeArgument); });
+    }
+    ts.isRequireVariableDeclarationStatement = isRequireVariableDeclarationStatement;
+    function isSingleOrDoubleQuote(charCode) {
+        return charCode === 39 || charCode === 34;
+    }
+    ts.isSingleOrDoubleQuote = isSingleOrDoubleQuote;
+    function isStringDoubleQuoted(str, sourceFile) {
+        return getSourceTextOfNodeFromSourceFile(sourceFile, str).charCodeAt(0) === 34;
+    }
+    ts.isStringDoubleQuoted = isStringDoubleQuoted;
+    function getDeclarationOfExpando(node) {
+        if (!node.parent) {
+            return undefined;
+        }
+        var name;
+        var decl;
+        if (ts.isVariableDeclaration(node.parent) && node.parent.initializer === node) {
+            if (!isInJSFile(node) && !isVarConst(node.parent)) {
+                return undefined;
+            }
+            name = node.parent.name;
+            decl = node.parent;
+        }
+        else if (ts.isBinaryExpression(node.parent)) {
+            var parentNode = node.parent;
+            var parentNodeOperator = node.parent.operatorToken.kind;
+            if (parentNodeOperator === 62 && parentNode.right === node) {
+                name = parentNode.left;
+                decl = name;
+            }
+            else if (parentNodeOperator === 56 || parentNodeOperator === 60) {
+                if (ts.isVariableDeclaration(parentNode.parent) && parentNode.parent.initializer === parentNode) {
+                    name = parentNode.parent.name;
+                    decl = parentNode.parent;
+                }
+                else if (ts.isBinaryExpression(parentNode.parent) && parentNode.parent.operatorToken.kind === 62 && parentNode.parent.right === parentNode) {
+                    name = parentNode.parent.left;
+                    decl = name;
+                }
+                if (!name || !isBindableStaticNameExpression(name) || !isSameEntityName(name, parentNode.left)) {
+                    return undefined;
+                }
+            }
+        }
+        if (!name || !getExpandoInitializer(node, isPrototypeAccess(name))) {
+            return undefined;
+        }
+        return decl;
+    }
+    ts.getDeclarationOfExpando = getDeclarationOfExpando;
+    function isAssignmentDeclaration(decl) {
+        return ts.isBinaryExpression(decl) || isAccessExpression(decl) || ts.isIdentifier(decl) || ts.isCallExpression(decl);
+    }
+    ts.isAssignmentDeclaration = isAssignmentDeclaration;
+    function getEffectiveInitializer(node) {
+        if (isInJSFile(node) && node.initializer &&
+            ts.isBinaryExpression(node.initializer) &&
+            (node.initializer.operatorToken.kind === 56 || node.initializer.operatorToken.kind === 60) &&
+            node.name && isEntityNameExpression(node.name) && isSameEntityName(node.name, node.initializer.left)) {
+            return node.initializer.right;
+        }
+        return node.initializer;
+    }
+    ts.getEffectiveInitializer = getEffectiveInitializer;
+    function getDeclaredExpandoInitializer(node) {
+        var init = getEffectiveInitializer(node);
+        return init && getExpandoInitializer(init, isPrototypeAccess(node.name));
+    }
+    ts.getDeclaredExpandoInitializer = getDeclaredExpandoInitializer;
+    function hasExpandoValueProperty(node, isPrototypeAssignment) {
+        return ts.forEach(node.properties, function (p) {
+            return ts.isPropertyAssignment(p) &&
+                ts.isIdentifier(p.name) &&
+                p.name.escapedText === "value" &&
+                p.initializer &&
+                getExpandoInitializer(p.initializer, isPrototypeAssignment);
+        });
+    }
+    function getAssignedExpandoInitializer(node) {
+        if (node && node.parent && ts.isBinaryExpression(node.parent) && node.parent.operatorToken.kind === 62) {
+            var isPrototypeAssignment = isPrototypeAccess(node.parent.left);
+            return getExpandoInitializer(node.parent.right, isPrototypeAssignment) ||
+                getDefaultedExpandoInitializer(node.parent.left, node.parent.right, isPrototypeAssignment);
+        }
+        if (node && ts.isCallExpression(node) && isBindableObjectDefinePropertyCall(node)) {
+            var result = hasExpandoValueProperty(node.arguments[2], node.arguments[1].text === "prototype");
+            if (result) {
+                return result;
+            }
+        }
+    }
+    ts.getAssignedExpandoInitializer = getAssignedExpandoInitializer;
+    function getExpandoInitializer(initializer, isPrototypeAssignment) {
+        if (ts.isCallExpression(initializer)) {
+            var e = skipParentheses(initializer.expression);
+            return e.kind === 201 || e.kind === 202 ? initializer : undefined;
+        }
+        if (initializer.kind === 201 ||
+            initializer.kind === 214 ||
+            initializer.kind === 202) {
+            return initializer;
+        }
+        if (ts.isObjectLiteralExpression(initializer) && (initializer.properties.length === 0 || isPrototypeAssignment)) {
+            return initializer;
+        }
+    }
+    ts.getExpandoInitializer = getExpandoInitializer;
+    function getDefaultedExpandoInitializer(name, initializer, isPrototypeAssignment) {
+        var e = ts.isBinaryExpression(initializer)
+            && (initializer.operatorToken.kind === 56 || initializer.operatorToken.kind === 60)
+            && getExpandoInitializer(initializer.right, isPrototypeAssignment);
+        if (e && isSameEntityName(name, initializer.left)) {
+            return e;
+        }
+    }
+    function isDefaultedExpandoInitializer(node) {
+        var name = ts.isVariableDeclaration(node.parent) ? node.parent.name :
+            ts.isBinaryExpression(node.parent) && node.parent.operatorToken.kind === 62 ? node.parent.left :
+                undefined;
+        return name && getExpandoInitializer(node.right, isPrototypeAccess(name)) && isEntityNameExpression(name) && isSameEntityName(name, node.left);
+    }
+    ts.isDefaultedExpandoInitializer = isDefaultedExpandoInitializer;
+    function getNameOfExpando(node) {
+        if (ts.isBinaryExpression(node.parent)) {
+            var parent = ((node.parent.operatorToken.kind === 56 || node.parent.operatorToken.kind === 60) && ts.isBinaryExpression(node.parent.parent)) ? node.parent.parent : node.parent;
+            if (parent.operatorToken.kind === 62 && ts.isIdentifier(parent.left)) {
+                return parent.left;
+            }
+        }
+        else if (ts.isVariableDeclaration(node.parent)) {
+            return node.parent.name;
+        }
+    }
+    ts.getNameOfExpando = getNameOfExpando;
+    function isSameEntityName(name, initializer) {
+        if (isPropertyNameLiteral(name) && isPropertyNameLiteral(initializer)) {
+            return getTextOfIdentifierOrLiteral(name) === getTextOfIdentifierOrLiteral(name);
+        }
+        if (ts.isIdentifier(name) && isLiteralLikeAccess(initializer) &&
+            (initializer.expression.kind === 104 ||
+                ts.isIdentifier(initializer.expression) &&
+                    (initializer.expression.escapedText === "window" ||
+                        initializer.expression.escapedText === "self" ||
+                        initializer.expression.escapedText === "global"))) {
+            var nameOrArgument = getNameOrArgument(initializer);
+            if (ts.isPrivateIdentifier(nameOrArgument)) {
+                ts.Debug.fail("Unexpected PrivateIdentifier in name expression with literal-like access.");
+            }
+            return isSameEntityName(name, nameOrArgument);
+        }
+        if (isLiteralLikeAccess(name) && isLiteralLikeAccess(initializer)) {
+            return getElementOrPropertyAccessName(name) === getElementOrPropertyAccessName(initializer)
+                && isSameEntityName(name.expression, initializer.expression);
+        }
+        return false;
+    }
+    function getRightMostAssignedExpression(node) {
+        while (isAssignmentExpression(node, true)) {
+            node = node.right;
+        }
+        return node;
+    }
+    ts.getRightMostAssignedExpression = getRightMostAssignedExpression;
+    function isExportsIdentifier(node) {
+        return ts.isIdentifier(node) && node.escapedText === "exports";
+    }
+    ts.isExportsIdentifier = isExportsIdentifier;
+    function isModuleIdentifier(node) {
+        return ts.isIdentifier(node) && node.escapedText === "module";
+    }
+    ts.isModuleIdentifier = isModuleIdentifier;
+    function isModuleExportsAccessExpression(node) {
+        return (ts.isPropertyAccessExpression(node) || isLiteralLikeElementAccess(node))
+            && isModuleIdentifier(node.expression)
+            && getElementOrPropertyAccessName(node) === "exports";
+    }
+    ts.isModuleExportsAccessExpression = isModuleExportsAccessExpression;
+    function getAssignmentDeclarationKind(expr) {
+        var special = getAssignmentDeclarationKindWorker(expr);
+        return special === 5 || isInJSFile(expr) ? special : 0;
+    }
+    ts.getAssignmentDeclarationKind = getAssignmentDeclarationKind;
+    function isBindableObjectDefinePropertyCall(expr) {
+        return ts.length(expr.arguments) === 3 &&
+            ts.isPropertyAccessExpression(expr.expression) &&
+            ts.isIdentifier(expr.expression.expression) &&
+            ts.idText(expr.expression.expression) === "Object" &&
+            ts.idText(expr.expression.name) === "defineProperty" &&
+            isStringOrNumericLiteralLike(expr.arguments[1]) &&
+            isBindableStaticNameExpression(expr.arguments[0], true);
+    }
+    ts.isBindableObjectDefinePropertyCall = isBindableObjectDefinePropertyCall;
+    function isLiteralLikeAccess(node) {
+        return ts.isPropertyAccessExpression(node) || isLiteralLikeElementAccess(node);
+    }
+    ts.isLiteralLikeAccess = isLiteralLikeAccess;
+    function isLiteralLikeElementAccess(node) {
+        return ts.isElementAccessExpression(node) && (isStringOrNumericLiteralLike(node.argumentExpression) ||
+            isWellKnownSymbolSyntactically(node.argumentExpression));
+    }
+    ts.isLiteralLikeElementAccess = isLiteralLikeElementAccess;
+    function isBindableStaticAccessExpression(node, excludeThisKeyword) {
+        return ts.isPropertyAccessExpression(node) && (!excludeThisKeyword && node.expression.kind === 104 || ts.isIdentifier(node.name) && isBindableStaticNameExpression(node.expression, true))
+            || isBindableStaticElementAccessExpression(node, excludeThisKeyword);
+    }
+    ts.isBindableStaticAccessExpression = isBindableStaticAccessExpression;
+    function isBindableStaticElementAccessExpression(node, excludeThisKeyword) {
+        return isLiteralLikeElementAccess(node)
+            && ((!excludeThisKeyword && node.expression.kind === 104) ||
+                isEntityNameExpression(node.expression) ||
+                isBindableStaticAccessExpression(node.expression, true));
+    }
+    ts.isBindableStaticElementAccessExpression = isBindableStaticElementAccessExpression;
+    function isBindableStaticNameExpression(node, excludeThisKeyword) {
+        return isEntityNameExpression(node) || isBindableStaticAccessExpression(node, excludeThisKeyword);
+    }
+    ts.isBindableStaticNameExpression = isBindableStaticNameExpression;
+    function getNameOrArgument(expr) {
+        if (ts.isPropertyAccessExpression(expr)) {
+            return expr.name;
+        }
+        return expr.argumentExpression;
+    }
+    ts.getNameOrArgument = getNameOrArgument;
+    function getAssignmentDeclarationKindWorker(expr) {
+        if (ts.isCallExpression(expr)) {
+            if (!isBindableObjectDefinePropertyCall(expr)) {
+                return 0;
+            }
+            var entityName = expr.arguments[0];
+            if (isExportsIdentifier(entityName) || isModuleExportsAccessExpression(entityName)) {
+                return 8;
+            }
+            if (isBindableStaticAccessExpression(entityName) && getElementOrPropertyAccessName(entityName) === "prototype") {
+                return 9;
+            }
+            return 7;
+        }
+        if (expr.operatorToken.kind !== 62 || !isAccessExpression(expr.left)) {
+            return 0;
+        }
+        if (isBindableStaticNameExpression(expr.left.expression, true) && getElementOrPropertyAccessName(expr.left) === "prototype" && ts.isObjectLiteralExpression(getInitializerOfBinaryExpression(expr))) {
+            return 6;
+        }
+        return getAssignmentDeclarationPropertyAccessKind(expr.left);
+    }
+    function getElementOrPropertyAccessArgumentExpressionOrName(node) {
+        if (ts.isPropertyAccessExpression(node)) {
+            return node.name;
+        }
+        var arg = skipParentheses(node.argumentExpression);
+        if (ts.isNumericLiteral(arg) || ts.isStringLiteralLike(arg)) {
+            return arg;
+        }
+        return node;
+    }
+    ts.getElementOrPropertyAccessArgumentExpressionOrName = getElementOrPropertyAccessArgumentExpressionOrName;
+    function getElementOrPropertyAccessName(node) {
+        var name = getElementOrPropertyAccessArgumentExpressionOrName(node);
+        if (name) {
+            if (ts.isIdentifier(name)) {
+                return name.escapedText;
+            }
+            if (ts.isStringLiteralLike(name) || ts.isNumericLiteral(name)) {
+                return ts.escapeLeadingUnderscores(name.text);
+            }
+        }
+        if (ts.isElementAccessExpression(node) && isWellKnownSymbolSyntactically(node.argumentExpression)) {
+            return getPropertyNameForKnownSymbolName(ts.idText(node.argumentExpression.name));
+        }
+        return undefined;
+    }
+    ts.getElementOrPropertyAccessName = getElementOrPropertyAccessName;
+    function getAssignmentDeclarationPropertyAccessKind(lhs) {
+        if (lhs.expression.kind === 104) {
+            return 4;
+        }
+        else if (isModuleExportsAccessExpression(lhs)) {
+            return 2;
+        }
+        else if (isBindableStaticNameExpression(lhs.expression, true)) {
+            if (isPrototypeAccess(lhs.expression)) {
+                return 3;
+            }
+            var nextToLast = lhs;
+            while (!ts.isIdentifier(nextToLast.expression)) {
+                nextToLast = nextToLast.expression;
+            }
+            var id = nextToLast.expression;
+            if ((id.escapedText === "exports" ||
+                id.escapedText === "module" && getElementOrPropertyAccessName(nextToLast) === "exports") &&
+                isBindableStaticAccessExpression(lhs)) {
+                return 1;
+            }
+            if (isBindableStaticNameExpression(lhs, true) || (ts.isElementAccessExpression(lhs) && isDynamicName(lhs))) {
+                return 5;
+            }
+        }
+        return 0;
+    }
+    ts.getAssignmentDeclarationPropertyAccessKind = getAssignmentDeclarationPropertyAccessKind;
+    function getInitializerOfBinaryExpression(expr) {
+        while (ts.isBinaryExpression(expr.right)) {
+            expr = expr.right;
+        }
+        return expr.right;
+    }
+    ts.getInitializerOfBinaryExpression = getInitializerOfBinaryExpression;
+    function isPrototypePropertyAssignment(node) {
+        return ts.isBinaryExpression(node) && getAssignmentDeclarationKind(node) === 3;
+    }
+    ts.isPrototypePropertyAssignment = isPrototypePropertyAssignment;
+    function isSpecialPropertyDeclaration(expr) {
+        return isInJSFile(expr) &&
+            expr.parent && expr.parent.kind === 226 &&
+            (!ts.isElementAccessExpression(expr) || isLiteralLikeElementAccess(expr)) &&
+            !!ts.getJSDocTypeTag(expr.parent);
+    }
+    ts.isSpecialPropertyDeclaration = isSpecialPropertyDeclaration;
+    function setValueDeclaration(symbol, node) {
+        var valueDeclaration = symbol.valueDeclaration;
+        if (!valueDeclaration ||
+            !(node.flags & 8388608 && !(valueDeclaration.flags & 8388608)) &&
+                (isAssignmentDeclaration(valueDeclaration) && !isAssignmentDeclaration(node)) ||
+            (valueDeclaration.kind !== node.kind && isEffectiveModuleDeclaration(valueDeclaration))) {
+            symbol.valueDeclaration = node;
+        }
+    }
+    ts.setValueDeclaration = setValueDeclaration;
+    function isFunctionSymbol(symbol) {
+        if (!symbol || !symbol.valueDeclaration) {
+            return false;
+        }
+        var decl = symbol.valueDeclaration;
+        return decl.kind === 244 || ts.isVariableDeclaration(decl) && decl.initializer && ts.isFunctionLike(decl.initializer);
+    }
+    ts.isFunctionSymbol = isFunctionSymbol;
+    function importFromModuleSpecifier(node) {
+        return tryGetImportFromModuleSpecifier(node) || ts.Debug.failBadSyntaxKind(node.parent);
+    }
+    ts.importFromModuleSpecifier = importFromModuleSpecifier;
+    function tryGetImportFromModuleSpecifier(node) {
+        switch (node.parent.kind) {
+            case 254:
+            case 260:
+                return node.parent;
+            case 265:
+                return node.parent.parent;
+            case 196:
+                return isImportCall(node.parent) || isRequireCall(node.parent, false) ? node.parent : undefined;
+            case 187:
+                ts.Debug.assert(ts.isStringLiteral(node));
+                return ts.tryCast(node.parent.parent, ts.isImportTypeNode);
+            default:
+                return undefined;
+        }
+    }
+    ts.tryGetImportFromModuleSpecifier = tryGetImportFromModuleSpecifier;
+    function getExternalModuleName(node) {
+        switch (node.kind) {
+            case 254:
+            case 260:
+                return node.moduleSpecifier;
+            case 253:
+                return node.moduleReference.kind === 265 ? node.moduleReference.expression : undefined;
+            case 188:
+                return isLiteralImportTypeNode(node) ? node.argument.literal : undefined;
+            default:
+                return ts.Debug.assertNever(node);
+        }
+    }
+    ts.getExternalModuleName = getExternalModuleName;
+    function getNamespaceDeclarationNode(node) {
+        switch (node.kind) {
+            case 254:
+                return node.importClause && ts.tryCast(node.importClause.namedBindings, ts.isNamespaceImport);
+            case 253:
+                return node;
+            case 260:
+                return node.exportClause && ts.tryCast(node.exportClause, ts.isNamespaceExport);
+            default:
+                return ts.Debug.assertNever(node);
+        }
+    }
+    ts.getNamespaceDeclarationNode = getNamespaceDeclarationNode;
+    function isDefaultImport(node) {
+        return node.kind === 254 && !!node.importClause && !!node.importClause.name;
+    }
+    ts.isDefaultImport = isDefaultImport;
+    function forEachImportClauseDeclaration(node, action) {
+        if (node.name) {
+            var result = action(node);
+            if (result)
+                return result;
+        }
+        if (node.namedBindings) {
+            var result = ts.isNamespaceImport(node.namedBindings)
+                ? action(node.namedBindings)
+                : ts.forEach(node.namedBindings.elements, action);
+            if (result)
+                return result;
+        }
+    }
+    ts.forEachImportClauseDeclaration = forEachImportClauseDeclaration;
+    function hasQuestionToken(node) {
+        if (node) {
+            switch (node.kind) {
+                case 156:
+                case 161:
+                case 160:
+                case 282:
+                case 281:
+                case 159:
+                case 158:
+                    return node.questionToken !== undefined;
+            }
+        }
+        return false;
+    }
+    ts.hasQuestionToken = hasQuestionToken;
+    function isJSDocConstructSignature(node) {
+        var param = ts.isJSDocFunctionType(node) ? ts.firstOrUndefined(node.parameters) : undefined;
+        var name = ts.tryCast(param && param.name, ts.isIdentifier);
+        return !!name && name.escapedText === "new";
+    }
+    ts.isJSDocConstructSignature = isJSDocConstructSignature;
+    function isJSDocTypeAlias(node) {
+        return node.kind === 322 || node.kind === 315 || node.kind === 316;
+    }
+    ts.isJSDocTypeAlias = isJSDocTypeAlias;
+    function isTypeAlias(node) {
+        return isJSDocTypeAlias(node) || ts.isTypeAliasDeclaration(node);
+    }
+    ts.isTypeAlias = isTypeAlias;
+    function getSourceOfAssignment(node) {
+        return ts.isExpressionStatement(node) &&
+            ts.isBinaryExpression(node.expression) &&
+            node.expression.operatorToken.kind === 62
+            ? getRightMostAssignedExpression(node.expression)
+            : undefined;
+    }
+    function getSourceOfDefaultedAssignment(node) {
+        return ts.isExpressionStatement(node) &&
+            ts.isBinaryExpression(node.expression) &&
+            getAssignmentDeclarationKind(node.expression) !== 0 &&
+            ts.isBinaryExpression(node.expression.right) &&
+            (node.expression.right.operatorToken.kind === 56 || node.expression.right.operatorToken.kind === 60)
+            ? node.expression.right.right
+            : undefined;
+    }
+    function getSingleInitializerOfVariableStatementOrPropertyDeclaration(node) {
+        switch (node.kind) {
+            case 225:
+                var v = getSingleVariableOfVariableStatement(node);
+                return v && v.initializer;
+            case 159:
+                return node.initializer;
+            case 281:
+                return node.initializer;
+        }
+    }
+    ts.getSingleInitializerOfVariableStatementOrPropertyDeclaration = getSingleInitializerOfVariableStatementOrPropertyDeclaration;
+    function getSingleVariableOfVariableStatement(node) {
+        return ts.isVariableStatement(node) ? ts.firstOrUndefined(node.declarationList.declarations) : undefined;
+    }
+    function getNestedModuleDeclaration(node) {
+        return ts.isModuleDeclaration(node) &&
+            node.body &&
+            node.body.kind === 249
+            ? node.body
+            : undefined;
+    }
+    function getJSDocCommentsAndTags(hostNode) {
+        var result;
+        if (isVariableLike(hostNode) && ts.hasInitializer(hostNode) && ts.hasJSDocNodes(hostNode.initializer)) {
+            result = ts.append(result, ts.last(hostNode.initializer.jsDoc));
+        }
+        var node = hostNode;
+        while (node && node.parent) {
+            if (ts.hasJSDocNodes(node)) {
+                result = ts.append(result, ts.last(node.jsDoc));
+            }
+            if (node.kind === 156) {
+                result = ts.addRange(result, ts.getJSDocParameterTags(node));
+                break;
+            }
+            if (node.kind === 155) {
+                result = ts.addRange(result, ts.getJSDocTypeParameterTags(node));
+                break;
+            }
+            node = getNextJSDocCommentLocation(node);
+        }
+        return result || ts.emptyArray;
+    }
+    ts.getJSDocCommentsAndTags = getJSDocCommentsAndTags;
+    function getNextJSDocCommentLocation(node) {
+        var parent = node.parent;
+        if (parent.kind === 281 ||
+            parent.kind === 259 ||
+            parent.kind === 159 ||
+            parent.kind === 226 && node.kind === 194 ||
+            getNestedModuleDeclaration(parent) ||
+            ts.isBinaryExpression(node) && node.operatorToken.kind === 62) {
+            return parent;
+        }
+        else if (parent.parent &&
+            (getSingleVariableOfVariableStatement(parent.parent) === node ||
+                ts.isBinaryExpression(parent) && parent.operatorToken.kind === 62)) {
+            return parent.parent;
+        }
+        else if (parent.parent && parent.parent.parent &&
+            (getSingleVariableOfVariableStatement(parent.parent.parent) ||
+                getSingleInitializerOfVariableStatementOrPropertyDeclaration(parent.parent.parent) === node ||
+                getSourceOfDefaultedAssignment(parent.parent.parent))) {
+            return parent.parent.parent;
+        }
+    }
+    function getParameterSymbolFromJSDoc(node) {
+        if (node.symbol) {
+            return node.symbol;
+        }
+        if (!ts.isIdentifier(node.name)) {
+            return undefined;
+        }
+        var name = node.name.escapedText;
+        var decl = getHostSignatureFromJSDoc(node);
+        if (!decl) {
+            return undefined;
+        }
+        var parameter = ts.find(decl.parameters, function (p) { return p.name.kind === 75 && p.name.escapedText === name; });
+        return parameter && parameter.symbol;
+    }
+    ts.getParameterSymbolFromJSDoc = getParameterSymbolFromJSDoc;
+    function getHostSignatureFromJSDoc(node) {
+        var host = getEffectiveJSDocHost(node);
+        return host && ts.isFunctionLike(host) ? host : undefined;
+    }
+    ts.getHostSignatureFromJSDoc = getHostSignatureFromJSDoc;
+    function getEffectiveJSDocHost(node) {
+        var host = getJSDocHost(node);
+        var decl = getSourceOfDefaultedAssignment(host) ||
+            getSourceOfAssignment(host) ||
+            getSingleInitializerOfVariableStatementOrPropertyDeclaration(host) ||
+            getSingleVariableOfVariableStatement(host) ||
+            getNestedModuleDeclaration(host) ||
+            host;
+        return decl;
+    }
+    ts.getEffectiveJSDocHost = getEffectiveJSDocHost;
+    function getJSDocHost(node) {
+        return ts.Debug.checkDefined(findAncestor(node.parent, ts.isJSDoc)).parent;
+    }
+    ts.getJSDocHost = getJSDocHost;
+    function getTypeParameterFromJsDoc(node) {
+        var name = node.name.escapedText;
+        var typeParameters = node.parent.parent.parent.typeParameters;
+        return typeParameters && ts.find(typeParameters, function (p) { return p.name.escapedText === name; });
+    }
+    ts.getTypeParameterFromJsDoc = getTypeParameterFromJsDoc;
+    function hasRestParameter(s) {
+        var last = ts.lastOrUndefined(s.parameters);
+        return !!last && isRestParameter(last);
+    }
+    ts.hasRestParameter = hasRestParameter;
+    function isRestParameter(node) {
+        var type = ts.isJSDocParameterTag(node) ? (node.typeExpression && node.typeExpression.type) : node.type;
+        return node.dotDotDotToken !== undefined || !!type && type.kind === 301;
+    }
+    ts.isRestParameter = isRestParameter;
+    function hasTypeArguments(node) {
+        return !!node.typeArguments;
+    }
+    ts.hasTypeArguments = hasTypeArguments;
+    function getAssignmentTargetKind(node) {
+        var parent = node.parent;
+        while (true) {
+            switch (parent.kind) {
+                case 209:
+                    var binaryOperator = parent.operatorToken.kind;
+                    return isAssignmentOperator(binaryOperator) && parent.left === node ?
+                        binaryOperator === 62 ? 1 : 2 :
+                        0;
+                case 207:
+                case 208:
+                    var unaryOperator = parent.operator;
+                    return unaryOperator === 45 || unaryOperator === 46 ? 2 : 0;
+                case 231:
+                case 232:
+                    return parent.initializer === node ? 1 : 0;
+                case 200:
+                case 192:
+                case 213:
+                case 218:
+                    node = parent;
+                    break;
+                case 282:
+                    if (parent.name !== node) {
+                        return 0;
+                    }
+                    node = parent.parent;
+                    break;
+                case 281:
+                    if (parent.name === node) {
+                        return 0;
+                    }
+                    node = parent.parent;
+                    break;
+                default:
+                    return 0;
+            }
+            parent = node.parent;
+        }
+    }
+    ts.getAssignmentTargetKind = getAssignmentTargetKind;
+    function isAssignmentTarget(node) {
+        return getAssignmentTargetKind(node) !== 0;
+    }
+    ts.isAssignmentTarget = isAssignmentTarget;
+    function isNodeWithPossibleHoistedDeclaration(node) {
+        switch (node.kind) {
+            case 223:
+            case 225:
+            case 236:
+            case 227:
+            case 237:
+            case 251:
+            case 277:
+            case 278:
+            case 238:
+            case 230:
+            case 231:
+            case 232:
+            case 228:
+            case 229:
+            case 240:
+            case 280:
+                return true;
+        }
+        return false;
+    }
+    ts.isNodeWithPossibleHoistedDeclaration = isNodeWithPossibleHoistedDeclaration;
+    function isValueSignatureDeclaration(node) {
+        return ts.isFunctionExpression(node) || ts.isArrowFunction(node) || ts.isMethodOrAccessor(node) || ts.isFunctionDeclaration(node) || ts.isConstructorDeclaration(node);
+    }
+    ts.isValueSignatureDeclaration = isValueSignatureDeclaration;
+    function walkUp(node, kind) {
+        while (node && node.kind === kind) {
+            node = node.parent;
+        }
+        return node;
+    }
+    function walkUpParenthesizedTypes(node) {
+        return walkUp(node, 182);
+    }
+    ts.walkUpParenthesizedTypes = walkUpParenthesizedTypes;
+    function walkUpParenthesizedExpressions(node) {
+        return walkUp(node, 200);
+    }
+    ts.walkUpParenthesizedExpressions = walkUpParenthesizedExpressions;
+    function skipParentheses(node) {
+        return ts.skipOuterExpressions(node, 1);
+    }
+    ts.skipParentheses = skipParentheses;
+    function skipParenthesesUp(node) {
+        while (node.kind === 200) {
+            node = node.parent;
+        }
+        return node;
+    }
+    function isDeleteTarget(node) {
+        if (node.kind !== 194 && node.kind !== 195) {
+            return false;
+        }
+        node = walkUpParenthesizedExpressions(node.parent);
+        return node && node.kind === 203;
+    }
+    ts.isDeleteTarget = isDeleteTarget;
+    function isNodeDescendantOf(node, ancestor) {
+        while (node) {
+            if (node === ancestor)
+                return true;
+            node = node.parent;
+        }
+        return false;
+    }
+    ts.isNodeDescendantOf = isNodeDescendantOf;
+    function isDeclarationName(name) {
+        return !ts.isSourceFile(name) && !ts.isBindingPattern(name) && ts.isDeclaration(name.parent) && name.parent.name === name;
+    }
+    ts.isDeclarationName = isDeclarationName;
+    function getDeclarationFromName(name) {
+        var parent = name.parent;
+        switch (name.kind) {
+            case 10:
+            case 14:
+            case 8:
+                if (ts.isComputedPropertyName(parent))
+                    return parent.parent;
+            case 75:
+                if (ts.isDeclaration(parent)) {
+                    return parent.name === name ? parent : undefined;
+                }
+                else if (ts.isQualifiedName(parent)) {
+                    var tag = parent.parent;
+                    return ts.isJSDocParameterTag(tag) && tag.name === parent ? tag : undefined;
+                }
+                else {
+                    var binExp = parent.parent;
+                    return ts.isBinaryExpression(binExp) &&
+                        getAssignmentDeclarationKind(binExp) !== 0 &&
+                        (binExp.left.symbol || binExp.symbol) &&
+                        ts.getNameOfDeclaration(binExp) === name
+                        ? binExp
+                        : undefined;
+                }
+            case 76:
+                return ts.isDeclaration(parent) && parent.name === name ? parent : undefined;
+            default:
+                return undefined;
+        }
+    }
+    ts.getDeclarationFromName = getDeclarationFromName;
+    function isLiteralComputedPropertyDeclarationName(node) {
+        return isStringOrNumericLiteralLike(node) &&
+            node.parent.kind === 154 &&
+            ts.isDeclaration(node.parent.parent);
+    }
+    ts.isLiteralComputedPropertyDeclarationName = isLiteralComputedPropertyDeclarationName;
+    function isIdentifierName(node) {
+        var parent = node.parent;
+        switch (parent.kind) {
+            case 159:
+            case 158:
+            case 161:
+            case 160:
+            case 163:
+            case 164:
+            case 284:
+            case 281:
+            case 194:
+                return parent.name === node;
+            case 153:
+                if (parent.right === node) {
+                    while (parent.kind === 153) {
+                        parent = parent.parent;
+                    }
+                    return parent.kind === 172 || parent.kind === 169;
+                }
+                return false;
+            case 191:
+            case 258:
+                return parent.propertyName === node;
+            case 263:
+            case 273:
+                return true;
+        }
+        return false;
+    }
+    ts.isIdentifierName = isIdentifierName;
+    function isAliasSymbolDeclaration(node) {
+        return node.kind === 253 ||
+            node.kind === 252 ||
+            node.kind === 255 && !!node.name ||
+            node.kind === 256 ||
+            node.kind === 262 ||
+            node.kind === 258 ||
+            node.kind === 263 ||
+            node.kind === 259 && exportAssignmentIsAlias(node) ||
+            ts.isBinaryExpression(node) && getAssignmentDeclarationKind(node) === 2 && exportAssignmentIsAlias(node) ||
+            ts.isPropertyAccessExpression(node) && ts.isBinaryExpression(node.parent) && node.parent.left === node && node.parent.operatorToken.kind === 62 && isAliasableExpression(node.parent.right) ||
+            node.kind === 282 ||
+            node.kind === 281 && isAliasableExpression(node.initializer);
+    }
+    ts.isAliasSymbolDeclaration = isAliasSymbolDeclaration;
+    function getAliasDeclarationFromName(node) {
+        switch (node.parent.kind) {
+            case 255:
+            case 258:
+            case 256:
+            case 263:
+            case 259:
+            case 253:
+                return node.parent;
+            case 153:
+                do {
+                    node = node.parent;
+                } while (node.parent.kind === 153);
+                return getAliasDeclarationFromName(node);
+        }
+    }
+    ts.getAliasDeclarationFromName = getAliasDeclarationFromName;
+    function isAliasableExpression(e) {
+        return isEntityNameExpression(e) || ts.isClassExpression(e);
+    }
+    ts.isAliasableExpression = isAliasableExpression;
+    function exportAssignmentIsAlias(node) {
+        var e = getExportAssignmentExpression(node);
+        return isAliasableExpression(e);
+    }
+    ts.exportAssignmentIsAlias = exportAssignmentIsAlias;
+    function getExportAssignmentExpression(node) {
+        return ts.isExportAssignment(node) ? node.expression : node.right;
+    }
+    ts.getExportAssignmentExpression = getExportAssignmentExpression;
+    function getPropertyAssignmentAliasLikeExpression(node) {
+        return node.kind === 282 ? node.name : node.kind === 281 ? node.initializer :
+            node.parent.right;
+    }
+    ts.getPropertyAssignmentAliasLikeExpression = getPropertyAssignmentAliasLikeExpression;
+    function getEffectiveBaseTypeNode(node) {
+        var baseType = getClassExtendsHeritageElement(node);
+        if (baseType && isInJSFile(node)) {
+            var tag = ts.getJSDocAugmentsTag(node);
+            if (tag) {
+                return tag.class;
+            }
+        }
+        return baseType;
+    }
+    ts.getEffectiveBaseTypeNode = getEffectiveBaseTypeNode;
+    function getClassExtendsHeritageElement(node) {
+        var heritageClause = getHeritageClause(node.heritageClauses, 90);
+        return heritageClause && heritageClause.types.length > 0 ? heritageClause.types[0] : undefined;
+    }
+    ts.getClassExtendsHeritageElement = getClassExtendsHeritageElement;
+    function getEffectiveImplementsTypeNodes(node) {
+        if (isInJSFile(node)) {
+            return ts.getJSDocImplementsTags(node).map(function (n) { return n.class; });
+        }
+        else {
+            var heritageClause = getHeritageClause(node.heritageClauses, 113);
+            return heritageClause === null || heritageClause === void 0 ? void 0 : heritageClause.types;
+        }
+    }
+    ts.getEffectiveImplementsTypeNodes = getEffectiveImplementsTypeNodes;
+    function getAllSuperTypeNodes(node) {
+        return ts.isInterfaceDeclaration(node) ? getInterfaceBaseTypeNodes(node) || ts.emptyArray :
+            ts.isClassLike(node) ? ts.concatenate(ts.singleElementArray(getEffectiveBaseTypeNode(node)), getEffectiveImplementsTypeNodes(node)) || ts.emptyArray :
+                ts.emptyArray;
+    }
+    ts.getAllSuperTypeNodes = getAllSuperTypeNodes;
+    function getInterfaceBaseTypeNodes(node) {
+        var heritageClause = getHeritageClause(node.heritageClauses, 90);
+        return heritageClause ? heritageClause.types : undefined;
+    }
+    ts.getInterfaceBaseTypeNodes = getInterfaceBaseTypeNodes;
+    function getHeritageClause(clauses, kind) {
+        if (clauses) {
+            for (var _i = 0, clauses_1 = clauses; _i < clauses_1.length; _i++) {
+                var clause = clauses_1[_i];
+                if (clause.token === kind) {
+                    return clause;
+                }
+            }
+        }
+        return undefined;
+    }
+    ts.getHeritageClause = getHeritageClause;
+    function getAncestor(node, kind) {
+        while (node) {
+            if (node.kind === kind) {
+                return node;
+            }
+            node = node.parent;
+        }
+        return undefined;
+    }
+    ts.getAncestor = getAncestor;
+    function isKeyword(token) {
+        return 77 <= token && token <= 152;
+    }
+    ts.isKeyword = isKeyword;
+    function isContextualKeyword(token) {
+        return 122 <= token && token <= 152;
+    }
+    ts.isContextualKeyword = isContextualKeyword;
+    function isNonContextualKeyword(token) {
+        return isKeyword(token) && !isContextualKeyword(token);
+    }
+    ts.isNonContextualKeyword = isNonContextualKeyword;
+    function isFutureReservedKeyword(token) {
+        return 113 <= token && token <= 121;
+    }
+    ts.isFutureReservedKeyword = isFutureReservedKeyword;
+    function isStringANonContextualKeyword(name) {
+        var token = ts.stringToToken(name);
+        return token !== undefined && isNonContextualKeyword(token);
+    }
+    ts.isStringANonContextualKeyword = isStringANonContextualKeyword;
+    function isStringAKeyword(name) {
+        var token = ts.stringToToken(name);
+        return token !== undefined && isKeyword(token);
+    }
+    ts.isStringAKeyword = isStringAKeyword;
+    function isIdentifierANonContextualKeyword(_a) {
+        var originalKeywordKind = _a.originalKeywordKind;
+        return !!originalKeywordKind && !isContextualKeyword(originalKeywordKind);
+    }
+    ts.isIdentifierANonContextualKeyword = isIdentifierANonContextualKeyword;
+    function isTrivia(token) {
+        return 2 <= token && token <= 7;
+    }
+    ts.isTrivia = isTrivia;
+    function getFunctionFlags(node) {
+        if (!node) {
+            return 4;
+        }
+        var flags = 0;
+        switch (node.kind) {
+            case 244:
+            case 201:
+            case 161:
+                if (node.asteriskToken) {
+                    flags |= 1;
+                }
+            case 202:
+                if (hasModifier(node, 256)) {
+                    flags |= 2;
+                }
+                break;
+        }
+        if (!node.body) {
+            flags |= 4;
+        }
+        return flags;
+    }
+    ts.getFunctionFlags = getFunctionFlags;
+    function isAsyncFunction(node) {
+        switch (node.kind) {
+            case 244:
+            case 201:
+            case 202:
+            case 161:
+                return node.body !== undefined
+                    && node.asteriskToken === undefined
+                    && hasModifier(node, 256);
+        }
+        return false;
+    }
+    ts.isAsyncFunction = isAsyncFunction;
+    function isStringOrNumericLiteralLike(node) {
+        return ts.isStringLiteralLike(node) || ts.isNumericLiteral(node);
+    }
+    ts.isStringOrNumericLiteralLike = isStringOrNumericLiteralLike;
+    function isSignedNumericLiteral(node) {
+        return ts.isPrefixUnaryExpression(node) && (node.operator === 39 || node.operator === 40) && ts.isNumericLiteral(node.operand);
+    }
+    ts.isSignedNumericLiteral = isSignedNumericLiteral;
+    function hasDynamicName(declaration) {
+        var name = ts.getNameOfDeclaration(declaration);
+        return !!name && isDynamicName(name);
+    }
+    ts.hasDynamicName = hasDynamicName;
+    function isDynamicName(name) {
+        if (!(name.kind === 154 || name.kind === 195)) {
+            return false;
+        }
+        var expr = ts.isElementAccessExpression(name) ? name.argumentExpression : name.expression;
+        return !isStringOrNumericLiteralLike(expr) &&
+            !isSignedNumericLiteral(expr) &&
+            !isWellKnownSymbolSyntactically(expr);
+    }
+    ts.isDynamicName = isDynamicName;
+    function isWellKnownSymbolSyntactically(node) {
+        return ts.isPropertyAccessExpression(node) && isESSymbolIdentifier(node.expression);
+    }
+    ts.isWellKnownSymbolSyntactically = isWellKnownSymbolSyntactically;
+    function getPropertyNameForPropertyNameNode(name) {
+        switch (name.kind) {
+            case 75:
+            case 76:
+                return name.escapedText;
+            case 10:
+            case 8:
+                return ts.escapeLeadingUnderscores(name.text);
+            case 154:
+                var nameExpression = name.expression;
+                if (isWellKnownSymbolSyntactically(nameExpression)) {
+                    return getPropertyNameForKnownSymbolName(ts.idText(nameExpression.name));
+                }
+                else if (isStringOrNumericLiteralLike(nameExpression)) {
+                    return ts.escapeLeadingUnderscores(nameExpression.text);
+                }
+                return undefined;
+            default:
+                return ts.Debug.assertNever(name);
+        }
+    }
+    ts.getPropertyNameForPropertyNameNode = getPropertyNameForPropertyNameNode;
+    function isPropertyNameLiteral(node) {
+        switch (node.kind) {
+            case 75:
+            case 10:
+            case 14:
+            case 8:
+                return true;
+            default:
+                return false;
+        }
+    }
+    ts.isPropertyNameLiteral = isPropertyNameLiteral;
+    function getTextOfIdentifierOrLiteral(node) {
+        return ts.isIdentifierOrPrivateIdentifier(node) ? ts.idText(node) : node.text;
+    }
+    ts.getTextOfIdentifierOrLiteral = getTextOfIdentifierOrLiteral;
+    function getEscapedTextOfIdentifierOrLiteral(node) {
+        return ts.isIdentifierOrPrivateIdentifier(node) ? node.escapedText : ts.escapeLeadingUnderscores(node.text);
+    }
+    ts.getEscapedTextOfIdentifierOrLiteral = getEscapedTextOfIdentifierOrLiteral;
+    function getPropertyNameForUniqueESSymbol(symbol) {
+        return "__@" + ts.getSymbolId(symbol) + "@" + symbol.escapedName;
+    }
+    ts.getPropertyNameForUniqueESSymbol = getPropertyNameForUniqueESSymbol;
+    function getPropertyNameForKnownSymbolName(symbolName) {
+        return "__@" + symbolName;
+    }
+    ts.getPropertyNameForKnownSymbolName = getPropertyNameForKnownSymbolName;
+    function getSymbolNameForPrivateIdentifier(containingClassSymbol, description) {
+        return "__#" + ts.getSymbolId(containingClassSymbol) + "@" + description;
+    }
+    ts.getSymbolNameForPrivateIdentifier = getSymbolNameForPrivateIdentifier;
+    function isKnownSymbol(symbol) {
+        return ts.startsWith(symbol.escapedName, "__@");
+    }
+    ts.isKnownSymbol = isKnownSymbol;
+    function isESSymbolIdentifier(node) {
+        return node.kind === 75 && node.escapedText === "Symbol";
+    }
+    ts.isESSymbolIdentifier = isESSymbolIdentifier;
+    function isPushOrUnshiftIdentifier(node) {
+        return node.escapedText === "push" || node.escapedText === "unshift";
+    }
+    ts.isPushOrUnshiftIdentifier = isPushOrUnshiftIdentifier;
+    function isParameterDeclaration(node) {
+        var root = getRootDeclaration(node);
+        return root.kind === 156;
+    }
+    ts.isParameterDeclaration = isParameterDeclaration;
+    function getRootDeclaration(node) {
+        while (node.kind === 191) {
+            node = node.parent.parent;
+        }
+        return node;
+    }
+    ts.getRootDeclaration = getRootDeclaration;
+    function nodeStartsNewLexicalEnvironment(node) {
+        var kind = node.kind;
+        return kind === 162
+            || kind === 201
+            || kind === 244
+            || kind === 202
+            || kind === 161
+            || kind === 163
+            || kind === 164
+            || kind === 249
+            || kind === 290;
+    }
+    ts.nodeStartsNewLexicalEnvironment = nodeStartsNewLexicalEnvironment;
+    function nodeIsSynthesized(range) {
+        return positionIsSynthesized(range.pos)
+            || positionIsSynthesized(range.end);
+    }
+    ts.nodeIsSynthesized = nodeIsSynthesized;
+    function getOriginalSourceFile(sourceFile) {
+        return ts.getParseTreeNode(sourceFile, ts.isSourceFile) || sourceFile;
+    }
+    ts.getOriginalSourceFile = getOriginalSourceFile;
+    function getExpressionAssociativity(expression) {
+        var operator = getOperator(expression);
+        var hasArguments = expression.kind === 197 && expression.arguments !== undefined;
+        return getOperatorAssociativity(expression.kind, operator, hasArguments);
+    }
+    ts.getExpressionAssociativity = getExpressionAssociativity;
+    function getOperatorAssociativity(kind, operator, hasArguments) {
+        switch (kind) {
+            case 197:
+                return hasArguments ? 0 : 1;
+            case 207:
+            case 204:
+            case 205:
+            case 203:
+            case 206:
+            case 210:
+            case 212:
+                return 1;
+            case 209:
+                switch (operator) {
+                    case 42:
+                    case 62:
+                    case 63:
+                    case 64:
+                    case 66:
+                    case 65:
+                    case 67:
+                    case 68:
+                    case 69:
+                    case 70:
+                    case 71:
+                    case 72:
+                    case 74:
+                    case 73:
+                        return 1;
+                }
+        }
+        return 0;
+    }
+    ts.getOperatorAssociativity = getOperatorAssociativity;
+    function getExpressionPrecedence(expression) {
+        var operator = getOperator(expression);
+        var hasArguments = expression.kind === 197 && expression.arguments !== undefined;
+        return getOperatorPrecedence(expression.kind, operator, hasArguments);
+    }
+    ts.getExpressionPrecedence = getExpressionPrecedence;
+    function getOperator(expression) {
+        if (expression.kind === 209) {
+            return expression.operatorToken.kind;
+        }
+        else if (expression.kind === 207 || expression.kind === 208) {
+            return expression.operator;
+        }
+        else {
+            return expression.kind;
+        }
+    }
+    ts.getOperator = getOperator;
+    function getOperatorPrecedence(nodeKind, operatorKind, hasArguments) {
+        switch (nodeKind) {
+            case 327:
+                return 0;
+            case 213:
+                return 1;
+            case 212:
+                return 2;
+            case 210:
+                return 4;
+            case 209:
+                switch (operatorKind) {
+                    case 27:
+                        return 0;
+                    case 62:
+                    case 63:
+                    case 64:
+                    case 66:
+                    case 65:
+                    case 67:
+                    case 68:
+                    case 69:
+                    case 70:
+                    case 71:
+                    case 72:
+                    case 74:
+                    case 73:
+                        return 3;
+                    default:
+                        return getBinaryOperatorPrecedence(operatorKind);
+                }
+            case 207:
+            case 204:
+            case 205:
+            case 203:
+            case 206:
+                return 16;
+            case 208:
+                return 17;
+            case 196:
+                return 18;
+            case 197:
+                return hasArguments ? 19 : 18;
+            case 198:
+            case 194:
+            case 195:
+                return 19;
+            case 104:
+            case 102:
+            case 75:
+            case 100:
+            case 106:
+            case 91:
+            case 8:
+            case 9:
+            case 10:
+            case 192:
+            case 193:
+            case 201:
+            case 202:
+            case 214:
+            case 266:
+            case 267:
+            case 270:
+            case 13:
+            case 14:
+            case 211:
+            case 200:
+            case 215:
+                return 20;
+            default:
+                return -1;
+        }
+    }
+    ts.getOperatorPrecedence = getOperatorPrecedence;
+    function getBinaryOperatorPrecedence(kind) {
+        switch (kind) {
+            case 60:
+                return 4;
+            case 56:
+                return 5;
+            case 55:
+                return 6;
+            case 51:
+                return 7;
+            case 52:
+                return 8;
+            case 50:
+                return 9;
+            case 34:
+            case 35:
+            case 36:
+            case 37:
+                return 10;
+            case 29:
+            case 31:
+            case 32:
+            case 33:
+            case 98:
+            case 97:
+            case 123:
+                return 11;
+            case 47:
+            case 48:
+            case 49:
+                return 12;
+            case 39:
+            case 40:
+                return 13;
+            case 41:
+            case 43:
+            case 44:
+                return 14;
+            case 42:
+                return 15;
+        }
+        return -1;
+    }
+    ts.getBinaryOperatorPrecedence = getBinaryOperatorPrecedence;
+    function createDiagnosticCollection() {
+        var nonFileDiagnostics = [];
+        var filesWithDiagnostics = [];
+        var fileDiagnostics = ts.createMap();
+        var hasReadNonFileDiagnostics = false;
+        return {
+            add: add,
+            lookup: lookup,
+            getGlobalDiagnostics: getGlobalDiagnostics,
+            getDiagnostics: getDiagnostics,
+            reattachFileDiagnostics: reattachFileDiagnostics
+        };
+        function reattachFileDiagnostics(newFile) {
+            ts.forEach(fileDiagnostics.get(newFile.fileName), function (diagnostic) { return diagnostic.file = newFile; });
+        }
+        function lookup(diagnostic) {
+            var diagnostics;
+            if (diagnostic.file) {
+                diagnostics = fileDiagnostics.get(diagnostic.file.fileName);
+            }
+            else {
+                diagnostics = nonFileDiagnostics;
+            }
+            if (!diagnostics) {
+                return undefined;
+            }
+            var result = ts.binarySearch(diagnostics, diagnostic, ts.identity, compareDiagnosticsSkipRelatedInformation);
+            if (result >= 0) {
+                return diagnostics[result];
+            }
+            return undefined;
+        }
+        function add(diagnostic) {
+            var diagnostics;
+            if (diagnostic.file) {
+                diagnostics = fileDiagnostics.get(diagnostic.file.fileName);
+                if (!diagnostics) {
+                    diagnostics = [];
+                    fileDiagnostics.set(diagnostic.file.fileName, diagnostics);
+                    ts.insertSorted(filesWithDiagnostics, diagnostic.file.fileName, ts.compareStringsCaseSensitive);
+                }
+            }
+            else {
+                if (hasReadNonFileDiagnostics) {
+                    hasReadNonFileDiagnostics = false;
+                    nonFileDiagnostics = nonFileDiagnostics.slice();
+                }
+                diagnostics = nonFileDiagnostics;
+            }
+            ts.insertSorted(diagnostics, diagnostic, compareDiagnostics);
+        }
+        function getGlobalDiagnostics() {
+            hasReadNonFileDiagnostics = true;
+            return nonFileDiagnostics;
+        }
+        function getDiagnostics(fileName) {
+            if (fileName) {
+                return fileDiagnostics.get(fileName) || [];
+            }
+            var fileDiags = ts.flatMapToMutable(filesWithDiagnostics, function (f) { return fileDiagnostics.get(f); });
+            if (!nonFileDiagnostics.length) {
+                return fileDiags;
+            }
+            fileDiags.unshift.apply(fileDiags, nonFileDiagnostics);
+            return fileDiags;
+        }
+    }
+    ts.createDiagnosticCollection = createDiagnosticCollection;
+    var templateSubstitutionRegExp = /\$\{/g;
+    function escapeTemplateSubstitution(str) {
+        return str.replace(templateSubstitutionRegExp, "\\${");
+    }
+    function hasInvalidEscape(template) {
+        return template && !!(ts.isNoSubstitutionTemplateLiteral(template)
+            ? template.templateFlags
+            : (template.head.templateFlags || ts.some(template.templateSpans, function (span) { return !!span.literal.templateFlags; })));
+    }
+    ts.hasInvalidEscape = hasInvalidEscape;
+    var doubleQuoteEscapedCharsRegExp = /[\\\"\u0000-\u001f\t\v\f\b\r\n\u2028\u2029\u0085]/g;
+    var singleQuoteEscapedCharsRegExp = /[\\\'\u0000-\u001f\t\v\f\b\r\n\u2028\u2029\u0085]/g;
+    var backtickQuoteEscapedCharsRegExp = /[\\`]/g;
+    var escapedCharsMap = ts.createMapFromTemplate({
+        "\t": "\\t",
+        "\v": "\\v",
+        "\f": "\\f",
+        "\b": "\\b",
+        "\r": "\\r",
+        "\n": "\\n",
+        "\\": "\\\\",
+        "\"": "\\\"",
+        "\'": "\\\'",
+        "\`": "\\\`",
+        "\u2028": "\\u2028",
+        "\u2029": "\\u2029",
+        "\u0085": "\\u0085"
+    });
+    function encodeUtf16EscapeSequence(charCode) {
+        var hexCharCode = charCode.toString(16).toUpperCase();
+        var paddedHexCode = ("0000" + hexCharCode).slice(-4);
+        return "\\u" + paddedHexCode;
+    }
+    function getReplacement(c, offset, input) {
+        if (c.charCodeAt(0) === 0) {
+            var lookAhead = input.charCodeAt(offset + c.length);
+            if (lookAhead >= 48 && lookAhead <= 57) {
+                return "\\x00";
+            }
+            return "\\0";
+        }
+        return escapedCharsMap.get(c) || encodeUtf16EscapeSequence(c.charCodeAt(0));
+    }
+    function escapeString(s, quoteChar) {
+        var escapedCharsRegExp = quoteChar === 96 ? backtickQuoteEscapedCharsRegExp :
+            quoteChar === 39 ? singleQuoteEscapedCharsRegExp :
+                doubleQuoteEscapedCharsRegExp;
+        return s.replace(escapedCharsRegExp, getReplacement);
+    }
+    ts.escapeString = escapeString;
+    var nonAsciiCharacters = /[^\u0000-\u007F]/g;
+    function escapeNonAsciiString(s, quoteChar) {
+        s = escapeString(s, quoteChar);
+        return nonAsciiCharacters.test(s) ?
+            s.replace(nonAsciiCharacters, function (c) { return encodeUtf16EscapeSequence(c.charCodeAt(0)); }) :
+            s;
+    }
+    ts.escapeNonAsciiString = escapeNonAsciiString;
+    var jsxDoubleQuoteEscapedCharsRegExp = /[\"\u0000-\u001f\u2028\u2029\u0085]/g;
+    var jsxSingleQuoteEscapedCharsRegExp = /[\'\u0000-\u001f\u2028\u2029\u0085]/g;
+    var jsxEscapedCharsMap = ts.createMapFromTemplate({
+        "\"": "&quot;",
+        "\'": "&apos;"
+    });
+    function encodeJsxCharacterEntity(charCode) {
+        var hexCharCode = charCode.toString(16).toUpperCase();
+        return "&#x" + hexCharCode + ";";
+    }
+    function getJsxAttributeStringReplacement(c) {
+        if (c.charCodeAt(0) === 0) {
+            return "&#0;";
+        }
+        return jsxEscapedCharsMap.get(c) || encodeJsxCharacterEntity(c.charCodeAt(0));
+    }
+    function escapeJsxAttributeString(s, quoteChar) {
+        var escapedCharsRegExp = quoteChar === 39 ? jsxSingleQuoteEscapedCharsRegExp :
+            jsxDoubleQuoteEscapedCharsRegExp;
+        return s.replace(escapedCharsRegExp, getJsxAttributeStringReplacement);
+    }
+    ts.escapeJsxAttributeString = escapeJsxAttributeString;
+    function stripQuotes(name) {
+        var length = name.length;
+        if (length >= 2 && name.charCodeAt(0) === name.charCodeAt(length - 1) && isQuoteOrBacktick(name.charCodeAt(0))) {
+            return name.substring(1, length - 1);
+        }
+        return name;
+    }
+    ts.stripQuotes = stripQuotes;
+    function isQuoteOrBacktick(charCode) {
+        return charCode === 39 ||
+            charCode === 34 ||
+            charCode === 96;
+    }
+    function isIntrinsicJsxName(name) {
+        var ch = name.charCodeAt(0);
+        return (ch >= 97 && ch <= 122) || ts.stringContains(name, "-");
+    }
+    ts.isIntrinsicJsxName = isIntrinsicJsxName;
+    var indentStrings = ["", "    "];
+    function getIndentString(level) {
+        if (indentStrings[level] === undefined) {
+            indentStrings[level] = getIndentString(level - 1) + indentStrings[1];
+        }
+        return indentStrings[level];
+    }
+    ts.getIndentString = getIndentString;
+    function getIndentSize() {
+        return indentStrings[1].length;
+    }
+    ts.getIndentSize = getIndentSize;
+    function createTextWriter(newLine) {
+        var output;
+        var indent;
+        var lineStart;
+        var lineCount;
+        var linePos;
+        var hasTrailingComment = false;
+        function updateLineCountAndPosFor(s) {
+            var lineStartsOfS = ts.computeLineStarts(s);
+            if (lineStartsOfS.length > 1) {
+                lineCount = lineCount + lineStartsOfS.length - 1;
+                linePos = output.length - s.length + ts.last(lineStartsOfS);
+                lineStart = (linePos - output.length) === 0;
+            }
+            else {
+                lineStart = false;
+            }
+        }
+        function writeText(s) {
+            if (s && s.length) {
+                if (lineStart) {
+                    s = getIndentString(indent) + s;
+                    lineStart = false;
+                }
+                output += s;
+                updateLineCountAndPosFor(s);
+            }
+        }
+        function write(s) {
+            if (s)
+                hasTrailingComment = false;
+            writeText(s);
+        }
+        function writeComment(s) {
+            if (s)
+                hasTrailingComment = true;
+            writeText(s);
+        }
+        function reset() {
+            output = "";
+            indent = 0;
+            lineStart = true;
+            lineCount = 0;
+            linePos = 0;
+            hasTrailingComment = false;
+        }
+        function rawWrite(s) {
+            if (s !== undefined) {
+                output += s;
+                updateLineCountAndPosFor(s);
+                hasTrailingComment = false;
+            }
+        }
+        function writeLiteral(s) {
+            if (s && s.length) {
+                write(s);
+            }
+        }
+        function writeLine(force) {
+            if (!lineStart || force) {
+                output += newLine;
+                lineCount++;
+                linePos = output.length;
+                lineStart = true;
+                hasTrailingComment = false;
+            }
+        }
+        function getTextPosWithWriteLine() {
+            return lineStart ? output.length : (output.length + newLine.length);
+        }
+        reset();
+        return {
+            write: write,
+            rawWrite: rawWrite,
+            writeLiteral: writeLiteral,
+            writeLine: writeLine,
+            increaseIndent: function () { indent++; },
+            decreaseIndent: function () { indent--; },
+            getIndent: function () { return indent; },
+            getTextPos: function () { return output.length; },
+            getLine: function () { return lineCount; },
+            getColumn: function () { return lineStart ? indent * getIndentSize() : output.length - linePos; },
+            getText: function () { return output; },
+            isAtStartOfLine: function () { return lineStart; },
+            hasTrailingComment: function () { return hasTrailingComment; },
+            hasTrailingWhitespace: function () { return !!output.length && ts.isWhiteSpaceLike(output.charCodeAt(output.length - 1)); },
+            clear: reset,
+            reportInaccessibleThisError: ts.noop,
+            reportPrivateInBaseOfClassExpression: ts.noop,
+            reportInaccessibleUniqueSymbolError: ts.noop,
+            trackSymbol: ts.noop,
+            writeKeyword: write,
+            writeOperator: write,
+            writeParameter: write,
+            writeProperty: write,
+            writePunctuation: write,
+            writeSpace: write,
+            writeStringLiteral: write,
+            writeSymbol: function (s, _) { return write(s); },
+            writeTrailingSemicolon: write,
+            writeComment: writeComment,
+            getTextPosWithWriteLine: getTextPosWithWriteLine
+        };
+    }
+    ts.createTextWriter = createTextWriter;
+    function getTrailingSemicolonDeferringWriter(writer) {
+        var pendingTrailingSemicolon = false;
+        function commitPendingTrailingSemicolon() {
+            if (pendingTrailingSemicolon) {
+                writer.writeTrailingSemicolon(";");
+                pendingTrailingSemicolon = false;
+            }
+        }
+        return __assign(__assign({}, writer), { writeTrailingSemicolon: function () {
+                pendingTrailingSemicolon = true;
+            },
+            writeLiteral: function (s) {
+                commitPendingTrailingSemicolon();
+                writer.writeLiteral(s);
+            },
+            writeStringLiteral: function (s) {
+                commitPendingTrailingSemicolon();
+                writer.writeStringLiteral(s);
+            },
+            writeSymbol: function (s, sym) {
+                commitPendingTrailingSemicolon();
+                writer.writeSymbol(s, sym);
+            },
+            writePunctuation: function (s) {
+                commitPendingTrailingSemicolon();
+                writer.writePunctuation(s);
+            },
+            writeKeyword: function (s) {
+                commitPendingTrailingSemicolon();
+                writer.writeKeyword(s);
+            },
+            writeOperator: function (s) {
+                commitPendingTrailingSemicolon();
+                writer.writeOperator(s);
+            },
+            writeParameter: function (s) {
+                commitPendingTrailingSemicolon();
+                writer.writeParameter(s);
+            },
+            writeSpace: function (s) {
+                commitPendingTrailingSemicolon();
+                writer.writeSpace(s);
+            },
+            writeProperty: function (s) {
+                commitPendingTrailingSemicolon();
+                writer.writeProperty(s);
+            },
+            writeComment: function (s) {
+                commitPendingTrailingSemicolon();
+                writer.writeComment(s);
+            },
+            writeLine: function () {
+                commitPendingTrailingSemicolon();
+                writer.writeLine();
+            },
+            increaseIndent: function () {
+                commitPendingTrailingSemicolon();
+                writer.increaseIndent();
+            },
+            decreaseIndent: function () {
+                commitPendingTrailingSemicolon();
+                writer.decreaseIndent();
+            } });
+    }
+    ts.getTrailingSemicolonDeferringWriter = getTrailingSemicolonDeferringWriter;
+    function hostUsesCaseSensitiveFileNames(host) {
+        return host.useCaseSensitiveFileNames ? host.useCaseSensitiveFileNames() : false;
+    }
+    ts.hostUsesCaseSensitiveFileNames = hostUsesCaseSensitiveFileNames;
+    function hostGetCanonicalFileName(host) {
+        return ts.createGetCanonicalFileName(hostUsesCaseSensitiveFileNames(host));
+    }
+    ts.hostGetCanonicalFileName = hostGetCanonicalFileName;
+    function getResolvedExternalModuleName(host, file, referenceFile) {
+        return file.moduleName || getExternalModuleNameFromPath(host, file.fileName, referenceFile && referenceFile.fileName);
+    }
+    ts.getResolvedExternalModuleName = getResolvedExternalModuleName;
+    function getExternalModuleNameFromDeclaration(host, resolver, declaration) {
+        var file = resolver.getExternalModuleFileFromDeclaration(declaration);
+        if (!file || file.isDeclarationFile) {
+            return undefined;
+        }
+        return getResolvedExternalModuleName(host, file);
+    }
+    ts.getExternalModuleNameFromDeclaration = getExternalModuleNameFromDeclaration;
+    function getExternalModuleNameFromPath(host, fileName, referencePath) {
+        var getCanonicalFileName = function (f) { return host.getCanonicalFileName(f); };
+        var dir = ts.toPath(referencePath ? ts.getDirectoryPath(referencePath) : host.getCommonSourceDirectory(), host.getCurrentDirectory(), getCanonicalFileName);
+        var filePath = ts.getNormalizedAbsolutePath(fileName, host.getCurrentDirectory());
+        var relativePath = ts.getRelativePathToDirectoryOrUrl(dir, filePath, dir, getCanonicalFileName, false);
+        var extensionless = removeFileExtension(relativePath);
+        return referencePath ? ts.ensurePathIsNonModuleName(extensionless) : extensionless;
+    }
+    ts.getExternalModuleNameFromPath = getExternalModuleNameFromPath;
+    function getOwnEmitOutputFilePath(fileName, host, extension) {
+        var compilerOptions = host.getCompilerOptions();
+        var emitOutputFilePathWithoutExtension;
+        if (compilerOptions.outDir) {
+            emitOutputFilePathWithoutExtension = removeFileExtension(getSourceFilePathInNewDir(fileName, host, compilerOptions.outDir));
+        }
+        else {
+            emitOutputFilePathWithoutExtension = removeFileExtension(fileName);
+        }
+        return emitOutputFilePathWithoutExtension + extension;
+    }
+    ts.getOwnEmitOutputFilePath = getOwnEmitOutputFilePath;
+    function getDeclarationEmitOutputFilePath(fileName, host) {
+        return getDeclarationEmitOutputFilePathWorker(fileName, host.getCompilerOptions(), host.getCurrentDirectory(), host.getCommonSourceDirectory(), function (f) { return host.getCanonicalFileName(f); });
+    }
+    ts.getDeclarationEmitOutputFilePath = getDeclarationEmitOutputFilePath;
+    function getDeclarationEmitOutputFilePathWorker(fileName, options, currentDirectory, commonSourceDirectory, getCanonicalFileName) {
+        var outputDir = options.declarationDir || options.outDir;
+        var path = outputDir
+            ? getSourceFilePathInNewDirWorker(fileName, outputDir, currentDirectory, commonSourceDirectory, getCanonicalFileName)
+            : fileName;
+        return removeFileExtension(path) + ".d.ts";
+    }
+    ts.getDeclarationEmitOutputFilePathWorker = getDeclarationEmitOutputFilePathWorker;
+    function getSourceFilesToEmit(host, targetSourceFile, forceDtsEmit) {
+        var options = host.getCompilerOptions();
+        if (options.outFile || options.out) {
+            var moduleKind = getEmitModuleKind(options);
+            var moduleEmitEnabled_1 = options.emitDeclarationOnly || moduleKind === ts.ModuleKind.AMD || moduleKind === ts.ModuleKind.System;
+            return ts.filter(host.getSourceFiles(), function (sourceFile) {
+                return (moduleEmitEnabled_1 || !ts.isExternalModule(sourceFile)) &&
+                    sourceFileMayBeEmitted(sourceFile, host, forceDtsEmit);
+            });
+        }
+        else {
+            var sourceFiles = targetSourceFile === undefined ? host.getSourceFiles() : [targetSourceFile];
+            return ts.filter(sourceFiles, function (sourceFile) { return sourceFileMayBeEmitted(sourceFile, host, forceDtsEmit); });
+        }
+    }
+    ts.getSourceFilesToEmit = getSourceFilesToEmit;
+    function sourceFileMayBeEmitted(sourceFile, host, forceDtsEmit) {
+        var options = host.getCompilerOptions();
+        return !(options.noEmitForJsFiles && isSourceFileJS(sourceFile)) &&
+            !sourceFile.isDeclarationFile &&
+            !host.isSourceFileFromExternalLibrary(sourceFile) &&
+            !(isJsonSourceFile(sourceFile) && host.getResolvedProjectReferenceToRedirect(sourceFile.fileName)) &&
+            (forceDtsEmit || !host.isSourceOfProjectReferenceRedirect(sourceFile.fileName));
+    }
+    ts.sourceFileMayBeEmitted = sourceFileMayBeEmitted;
+    function getSourceFilePathInNewDir(fileName, host, newDirPath) {
+        return getSourceFilePathInNewDirWorker(fileName, newDirPath, host.getCurrentDirectory(), host.getCommonSourceDirectory(), function (f) { return host.getCanonicalFileName(f); });
+    }
+    ts.getSourceFilePathInNewDir = getSourceFilePathInNewDir;
+    function getSourceFilePathInNewDirWorker(fileName, newDirPath, currentDirectory, commonSourceDirectory, getCanonicalFileName) {
+        var sourceFilePath = ts.getNormalizedAbsolutePath(fileName, currentDirectory);
+        var isSourceFileInCommonSourceDirectory = getCanonicalFileName(sourceFilePath).indexOf(getCanonicalFileName(commonSourceDirectory)) === 0;
+        sourceFilePath = isSourceFileInCommonSourceDirectory ? sourceFilePath.substring(commonSourceDirectory.length) : sourceFilePath;
+        return ts.combinePaths(newDirPath, sourceFilePath);
+    }
+    ts.getSourceFilePathInNewDirWorker = getSourceFilePathInNewDirWorker;
+    function writeFile(host, diagnostics, fileName, data, writeByteOrderMark, sourceFiles) {
+        host.writeFile(fileName, data, writeByteOrderMark, function (hostErrorMessage) {
+            diagnostics.add(createCompilerDiagnostic(ts.Diagnostics.Could_not_write_file_0_Colon_1, fileName, hostErrorMessage));
+        }, sourceFiles);
+    }
+    ts.writeFile = writeFile;
+    function ensureDirectoriesExist(directoryPath, createDirectory, directoryExists) {
+        if (directoryPath.length > ts.getRootLength(directoryPath) && !directoryExists(directoryPath)) {
+            var parentDirectory = ts.getDirectoryPath(directoryPath);
+            ensureDirectoriesExist(parentDirectory, createDirectory, directoryExists);
+            createDirectory(directoryPath);
+        }
+    }
+    function writeFileEnsuringDirectories(path, data, writeByteOrderMark, writeFile, createDirectory, directoryExists) {
+        try {
+            writeFile(path, data, writeByteOrderMark);
+        }
+        catch (_a) {
+            ensureDirectoriesExist(ts.getDirectoryPath(ts.normalizePath(path)), createDirectory, directoryExists);
+            writeFile(path, data, writeByteOrderMark);
+        }
+    }
+    ts.writeFileEnsuringDirectories = writeFileEnsuringDirectories;
+    function getLineOfLocalPosition(sourceFile, pos) {
+        var lineStarts = ts.getLineStarts(sourceFile);
+        return ts.computeLineOfPosition(lineStarts, pos);
+    }
+    ts.getLineOfLocalPosition = getLineOfLocalPosition;
+    function getLineOfLocalPositionFromLineMap(lineMap, pos) {
+        return ts.computeLineOfPosition(lineMap, pos);
+    }
+    ts.getLineOfLocalPositionFromLineMap = getLineOfLocalPositionFromLineMap;
+    function getFirstConstructorWithBody(node) {
+        return ts.find(node.members, function (member) { return ts.isConstructorDeclaration(member) && nodeIsPresent(member.body); });
+    }
+    ts.getFirstConstructorWithBody = getFirstConstructorWithBody;
+    function getSetAccessorValueParameter(accessor) {
+        if (accessor && accessor.parameters.length > 0) {
+            var hasThis = accessor.parameters.length === 2 && parameterIsThisKeyword(accessor.parameters[0]);
+            return accessor.parameters[hasThis ? 1 : 0];
+        }
+    }
+    ts.getSetAccessorValueParameter = getSetAccessorValueParameter;
+    function getSetAccessorTypeAnnotationNode(accessor) {
+        var parameter = getSetAccessorValueParameter(accessor);
+        return parameter && parameter.type;
+    }
+    ts.getSetAccessorTypeAnnotationNode = getSetAccessorTypeAnnotationNode;
+    function getThisParameter(signature) {
+        if (signature.parameters.length && !ts.isJSDocSignature(signature)) {
+            var thisParameter = signature.parameters[0];
+            if (parameterIsThisKeyword(thisParameter)) {
+                return thisParameter;
+            }
+        }
+    }
+    ts.getThisParameter = getThisParameter;
+    function parameterIsThisKeyword(parameter) {
+        return isThisIdentifier(parameter.name);
+    }
+    ts.parameterIsThisKeyword = parameterIsThisKeyword;
+    function isThisIdentifier(node) {
+        return !!node && node.kind === 75 && identifierIsThisKeyword(node);
+    }
+    ts.isThisIdentifier = isThisIdentifier;
+    function identifierIsThisKeyword(id) {
+        return id.originalKeywordKind === 104;
+    }
+    ts.identifierIsThisKeyword = identifierIsThisKeyword;
+    function getAllAccessorDeclarations(declarations, accessor) {
+        var firstAccessor;
+        var secondAccessor;
+        var getAccessor;
+        var setAccessor;
+        if (hasDynamicName(accessor)) {
+            firstAccessor = accessor;
+            if (accessor.kind === 163) {
+                getAccessor = accessor;
+            }
+            else if (accessor.kind === 164) {
+                setAccessor = accessor;
+            }
+            else {
+                ts.Debug.fail("Accessor has wrong kind");
+            }
+        }
+        else {
+            ts.forEach(declarations, function (member) {
+                if (ts.isAccessor(member)
+                    && hasModifier(member, 32) === hasModifier(accessor, 32)) {
+                    var memberName = getPropertyNameForPropertyNameNode(member.name);
+                    var accessorName = getPropertyNameForPropertyNameNode(accessor.name);
+                    if (memberName === accessorName) {
+                        if (!firstAccessor) {
+                            firstAccessor = member;
+                        }
+                        else if (!secondAccessor) {
+                            secondAccessor = member;
+                        }
+                        if (member.kind === 163 && !getAccessor) {
+                            getAccessor = member;
+                        }
+                        if (member.kind === 164 && !setAccessor) {
+                            setAccessor = member;
+                        }
+                    }
+                }
+            });
+        }
+        return {
+            firstAccessor: firstAccessor,
+            secondAccessor: secondAccessor,
+            getAccessor: getAccessor,
+            setAccessor: setAccessor
+        };
+    }
+    ts.getAllAccessorDeclarations = getAllAccessorDeclarations;
+    function getEffectiveTypeAnnotationNode(node) {
+        if (!isInJSFile(node) && ts.isFunctionDeclaration(node))
+            return undefined;
+        var type = node.type;
+        if (type || !isInJSFile(node))
+            return type;
+        return ts.isJSDocPropertyLikeTag(node) ? node.typeExpression && node.typeExpression.type : ts.getJSDocType(node);
+    }
+    ts.getEffectiveTypeAnnotationNode = getEffectiveTypeAnnotationNode;
+    function getTypeAnnotationNode(node) {
+        return node.type;
+    }
+    ts.getTypeAnnotationNode = getTypeAnnotationNode;
+    function getEffectiveReturnTypeNode(node) {
+        return ts.isJSDocSignature(node) ?
+            node.type && node.type.typeExpression && node.type.typeExpression.type :
+            node.type || (isInJSFile(node) ? ts.getJSDocReturnType(node) : undefined);
+    }
+    ts.getEffectiveReturnTypeNode = getEffectiveReturnTypeNode;
+    function getJSDocTypeParameterDeclarations(node) {
+        return ts.flatMap(ts.getJSDocTags(node), function (tag) { return isNonTypeAliasTemplate(tag) ? tag.typeParameters : undefined; });
+    }
+    ts.getJSDocTypeParameterDeclarations = getJSDocTypeParameterDeclarations;
+    function isNonTypeAliasTemplate(tag) {
+        return ts.isJSDocTemplateTag(tag) && !(tag.parent.kind === 303 && tag.parent.tags.some(isJSDocTypeAlias));
+    }
+    function getEffectiveSetAccessorTypeAnnotationNode(node) {
+        var parameter = getSetAccessorValueParameter(node);
+        return parameter && getEffectiveTypeAnnotationNode(parameter);
+    }
+    ts.getEffectiveSetAccessorTypeAnnotationNode = getEffectiveSetAccessorTypeAnnotationNode;
+    function emitNewLineBeforeLeadingComments(lineMap, writer, node, leadingComments) {
+        emitNewLineBeforeLeadingCommentsOfPosition(lineMap, writer, node.pos, leadingComments);
+    }
+    ts.emitNewLineBeforeLeadingComments = emitNewLineBeforeLeadingComments;
+    function emitNewLineBeforeLeadingCommentsOfPosition(lineMap, writer, pos, leadingComments) {
+        if (leadingComments && leadingComments.length && pos !== leadingComments[0].pos &&
+            getLineOfLocalPositionFromLineMap(lineMap, pos) !== getLineOfLocalPositionFromLineMap(lineMap, leadingComments[0].pos)) {
+            writer.writeLine();
+        }
+    }
+    ts.emitNewLineBeforeLeadingCommentsOfPosition = emitNewLineBeforeLeadingCommentsOfPosition;
+    function emitNewLineBeforeLeadingCommentOfPosition(lineMap, writer, pos, commentPos) {
+        if (pos !== commentPos &&
+            getLineOfLocalPositionFromLineMap(lineMap, pos) !== getLineOfLocalPositionFromLineMap(lineMap, commentPos)) {
+            writer.writeLine();
+        }
+    }
+    ts.emitNewLineBeforeLeadingCommentOfPosition = emitNewLineBeforeLeadingCommentOfPosition;
+    function emitComments(text, lineMap, writer, comments, leadingSeparator, trailingSeparator, newLine, writeComment) {
+        if (comments && comments.length > 0) {
+            if (leadingSeparator) {
+                writer.writeSpace(" ");
+            }
+            var emitInterveningSeparator = false;
+            for (var _i = 0, comments_1 = comments; _i < comments_1.length; _i++) {
+                var comment = comments_1[_i];
+                if (emitInterveningSeparator) {
+                    writer.writeSpace(" ");
+                    emitInterveningSeparator = false;
+                }
+                writeComment(text, lineMap, writer, comment.pos, comment.end, newLine);
+                if (comment.hasTrailingNewLine) {
+                    writer.writeLine();
+                }
+                else {
+                    emitInterveningSeparator = true;
+                }
+            }
+            if (emitInterveningSeparator && trailingSeparator) {
+                writer.writeSpace(" ");
+            }
+        }
+    }
+    ts.emitComments = emitComments;
+    function emitDetachedComments(text, lineMap, writer, writeComment, node, newLine, removeComments) {
+        var leadingComments;
+        var currentDetachedCommentInfo;
+        if (removeComments) {
+            if (node.pos === 0) {
+                leadingComments = ts.filter(ts.getLeadingCommentRanges(text, node.pos), isPinnedCommentLocal);
+            }
+        }
+        else {
+            leadingComments = ts.getLeadingCommentRanges(text, node.pos);
+        }
+        if (leadingComments) {
+            var detachedComments = [];
+            var lastComment = void 0;
+            for (var _i = 0, leadingComments_1 = leadingComments; _i < leadingComments_1.length; _i++) {
+                var comment = leadingComments_1[_i];
+                if (lastComment) {
+                    var lastCommentLine = getLineOfLocalPositionFromLineMap(lineMap, lastComment.end);
+                    var commentLine = getLineOfLocalPositionFromLineMap(lineMap, comment.pos);
+                    if (commentLine >= lastCommentLine + 2) {
+                        break;
+                    }
+                }
+                detachedComments.push(comment);
+                lastComment = comment;
+            }
+            if (detachedComments.length) {
+                var lastCommentLine = getLineOfLocalPositionFromLineMap(lineMap, ts.last(detachedComments).end);
+                var nodeLine = getLineOfLocalPositionFromLineMap(lineMap, ts.skipTrivia(text, node.pos));
+                if (nodeLine >= lastCommentLine + 2) {
+                    emitNewLineBeforeLeadingComments(lineMap, writer, node, leadingComments);
+                    emitComments(text, lineMap, writer, detachedComments, false, true, newLine, writeComment);
+                    currentDetachedCommentInfo = { nodePos: node.pos, detachedCommentEndPos: ts.last(detachedComments).end };
+                }
+            }
+        }
+        return currentDetachedCommentInfo;
+        function isPinnedCommentLocal(comment) {
+            return isPinnedComment(text, comment.pos);
+        }
+    }
+    ts.emitDetachedComments = emitDetachedComments;
+    function writeCommentRange(text, lineMap, writer, commentPos, commentEnd, newLine) {
+        if (text.charCodeAt(commentPos + 1) === 42) {
+            var firstCommentLineAndCharacter = ts.computeLineAndCharacterOfPosition(lineMap, commentPos);
+            var lineCount = lineMap.length;
+            var firstCommentLineIndent = void 0;
+            for (var pos = commentPos, currentLine = firstCommentLineAndCharacter.line; pos < commentEnd; currentLine++) {
+                var nextLineStart = (currentLine + 1) === lineCount
+                    ? text.length + 1
+                    : lineMap[currentLine + 1];
+                if (pos !== commentPos) {
+                    if (firstCommentLineIndent === undefined) {
+                        firstCommentLineIndent = calculateIndent(text, lineMap[firstCommentLineAndCharacter.line], commentPos);
+                    }
+                    var currentWriterIndentSpacing = writer.getIndent() * getIndentSize();
+                    var spacesToEmit = currentWriterIndentSpacing - firstCommentLineIndent + calculateIndent(text, pos, nextLineStart);
+                    if (spacesToEmit > 0) {
+                        var numberOfSingleSpacesToEmit = spacesToEmit % getIndentSize();
+                        var indentSizeSpaceString = getIndentString((spacesToEmit - numberOfSingleSpacesToEmit) / getIndentSize());
+                        writer.rawWrite(indentSizeSpaceString);
+                        while (numberOfSingleSpacesToEmit) {
+                            writer.rawWrite(" ");
+                            numberOfSingleSpacesToEmit--;
+                        }
+                    }
+                    else {
+                        writer.rawWrite("");
+                    }
+                }
+                writeTrimmedCurrentLine(text, commentEnd, writer, newLine, pos, nextLineStart);
+                pos = nextLineStart;
+            }
+        }
+        else {
+            writer.writeComment(text.substring(commentPos, commentEnd));
+        }
+    }
+    ts.writeCommentRange = writeCommentRange;
+    function writeTrimmedCurrentLine(text, commentEnd, writer, newLine, pos, nextLineStart) {
+        var end = Math.min(commentEnd, nextLineStart - 1);
+        var currentLineText = text.substring(pos, end).replace(/^\s+|\s+$/g, "");
+        if (currentLineText) {
+            writer.writeComment(currentLineText);
+            if (end !== commentEnd) {
+                writer.writeLine();
+            }
+        }
+        else {
+            writer.rawWrite(newLine);
+        }
+    }
+    function calculateIndent(text, pos, end) {
+        var currentLineIndent = 0;
+        for (; pos < end && ts.isWhiteSpaceSingleLine(text.charCodeAt(pos)); pos++) {
+            if (text.charCodeAt(pos) === 9) {
+                currentLineIndent += getIndentSize() - (currentLineIndent % getIndentSize());
+            }
+            else {
+                currentLineIndent++;
+            }
+        }
+        return currentLineIndent;
+    }
+    function hasModifiers(node) {
+        return getModifierFlags(node) !== 0;
+    }
+    ts.hasModifiers = hasModifiers;
+    function hasModifier(node, flags) {
+        return !!getSelectedModifierFlags(node, flags);
+    }
+    ts.hasModifier = hasModifier;
+    function hasStaticModifier(node) {
+        return hasModifier(node, 32);
+    }
+    ts.hasStaticModifier = hasStaticModifier;
+    function hasReadonlyModifier(node) {
+        return hasModifier(node, 64);
+    }
+    ts.hasReadonlyModifier = hasReadonlyModifier;
+    function getSelectedModifierFlags(node, flags) {
+        return getModifierFlags(node) & flags;
+    }
+    ts.getSelectedModifierFlags = getSelectedModifierFlags;
+    function getModifierFlags(node) {
+        if (node.kind >= 0 && node.kind <= 152) {
+            return 0;
+        }
+        if (node.modifierFlagsCache & 536870912) {
+            return node.modifierFlagsCache & ~536870912;
+        }
+        var flags = getModifierFlagsNoCache(node);
+        node.modifierFlagsCache = flags | 536870912;
+        return flags;
+    }
+    ts.getModifierFlags = getModifierFlags;
+    function getModifierFlagsNoCache(node) {
+        var flags = 0;
+        if (node.modifiers) {
+            for (var _i = 0, _a = node.modifiers; _i < _a.length; _i++) {
+                var modifier = _a[_i];
+                flags |= modifierToFlag(modifier.kind);
+            }
+        }
+        if (isInJSFile(node) && !!node.parent) {
+            var tags = (ts.getJSDocPublicTag(node) ? 4 : 0)
+                | (ts.getJSDocPrivateTag(node) ? 8 : 0)
+                | (ts.getJSDocProtectedTag(node) ? 16 : 0)
+                | (ts.getJSDocReadonlyTag(node) ? 64 : 0);
+            flags |= tags;
+        }
+        if (node.flags & 4 || (node.kind === 75 && node.isInJSDocNamespace)) {
+            flags |= 1;
+        }
+        return flags;
+    }
+    ts.getModifierFlagsNoCache = getModifierFlagsNoCache;
+    function modifierToFlag(token) {
+        switch (token) {
+            case 120: return 32;
+            case 119: return 4;
+            case 118: return 16;
+            case 117: return 8;
+            case 122: return 128;
+            case 89: return 1;
+            case 130: return 2;
+            case 81: return 2048;
+            case 84: return 512;
+            case 126: return 256;
+            case 138: return 64;
+        }
+        return 0;
+    }
+    ts.modifierToFlag = modifierToFlag;
+    function isLogicalOperator(token) {
+        return token === 56
+            || token === 55
+            || token === 53;
+    }
+    ts.isLogicalOperator = isLogicalOperator;
+    function isAssignmentOperator(token) {
+        return token >= 62 && token <= 74;
+    }
+    ts.isAssignmentOperator = isAssignmentOperator;
+    function tryGetClassExtendingExpressionWithTypeArguments(node) {
+        var cls = tryGetClassImplementingOrExtendingExpressionWithTypeArguments(node);
+        return cls && !cls.isImplements ? cls.class : undefined;
+    }
+    ts.tryGetClassExtendingExpressionWithTypeArguments = tryGetClassExtendingExpressionWithTypeArguments;
+    function tryGetClassImplementingOrExtendingExpressionWithTypeArguments(node) {
+        return ts.isExpressionWithTypeArguments(node)
+            && ts.isHeritageClause(node.parent)
+            && ts.isClassLike(node.parent.parent)
+            ? { class: node.parent.parent, isImplements: node.parent.token === 113 }
+            : undefined;
+    }
+    ts.tryGetClassImplementingOrExtendingExpressionWithTypeArguments = tryGetClassImplementingOrExtendingExpressionWithTypeArguments;
+    function isAssignmentExpression(node, excludeCompoundAssignment) {
+        return ts.isBinaryExpression(node)
+            && (excludeCompoundAssignment
+                ? node.operatorToken.kind === 62
+                : isAssignmentOperator(node.operatorToken.kind))
+            && ts.isLeftHandSideExpression(node.left);
+    }
+    ts.isAssignmentExpression = isAssignmentExpression;
+    function isDestructuringAssignment(node) {
+        if (isAssignmentExpression(node, true)) {
+            var kind = node.left.kind;
+            return kind === 193
+                || kind === 192;
+        }
+        return false;
+    }
+    ts.isDestructuringAssignment = isDestructuringAssignment;
+    function isExpressionWithTypeArgumentsInClassExtendsClause(node) {
+        return tryGetClassExtendingExpressionWithTypeArguments(node) !== undefined;
+    }
+    ts.isExpressionWithTypeArgumentsInClassExtendsClause = isExpressionWithTypeArgumentsInClassExtendsClause;
+    function isEntityNameExpression(node) {
+        return node.kind === 75 || isPropertyAccessEntityNameExpression(node);
+    }
+    ts.isEntityNameExpression = isEntityNameExpression;
+    function getFirstIdentifier(node) {
+        switch (node.kind) {
+            case 75:
+                return node;
+            case 153:
+                do {
+                    node = node.left;
+                } while (node.kind !== 75);
+                return node;
+            case 194:
+                do {
+                    node = node.expression;
+                } while (node.kind !== 75);
+                return node;
+        }
+    }
+    ts.getFirstIdentifier = getFirstIdentifier;
+    function isDottedName(node) {
+        return node.kind === 75 || node.kind === 104 || node.kind === 102 ||
+            node.kind === 194 && isDottedName(node.expression) ||
+            node.kind === 200 && isDottedName(node.expression);
+    }
+    ts.isDottedName = isDottedName;
+    function isPropertyAccessEntityNameExpression(node) {
+        return ts.isPropertyAccessExpression(node) && ts.isIdentifier(node.name) && isEntityNameExpression(node.expression);
+    }
+    ts.isPropertyAccessEntityNameExpression = isPropertyAccessEntityNameExpression;
+    function tryGetPropertyAccessOrIdentifierToString(expr) {
+        if (ts.isPropertyAccessExpression(expr)) {
+            var baseStr = tryGetPropertyAccessOrIdentifierToString(expr.expression);
+            if (baseStr !== undefined) {
+                return baseStr + "." + expr.name;
+            }
+        }
+        else if (ts.isIdentifier(expr)) {
+            return ts.unescapeLeadingUnderscores(expr.escapedText);
+        }
+        return undefined;
+    }
+    ts.tryGetPropertyAccessOrIdentifierToString = tryGetPropertyAccessOrIdentifierToString;
+    function isPrototypeAccess(node) {
+        return isBindableStaticAccessExpression(node) && getElementOrPropertyAccessName(node) === "prototype";
+    }
+    ts.isPrototypeAccess = isPrototypeAccess;
+    function isRightSideOfQualifiedNameOrPropertyAccess(node) {
+        return (node.parent.kind === 153 && node.parent.right === node) ||
+            (node.parent.kind === 194 && node.parent.name === node);
+    }
+    ts.isRightSideOfQualifiedNameOrPropertyAccess = isRightSideOfQualifiedNameOrPropertyAccess;
+    function isEmptyObjectLiteral(expression) {
+        return expression.kind === 193 &&
+            expression.properties.length === 0;
+    }
+    ts.isEmptyObjectLiteral = isEmptyObjectLiteral;
+    function isEmptyArrayLiteral(expression) {
+        return expression.kind === 192 &&
+            expression.elements.length === 0;
+    }
+    ts.isEmptyArrayLiteral = isEmptyArrayLiteral;
+    function getLocalSymbolForExportDefault(symbol) {
+        return isExportDefaultSymbol(symbol) ? symbol.declarations[0].localSymbol : undefined;
+    }
+    ts.getLocalSymbolForExportDefault = getLocalSymbolForExportDefault;
+    function isExportDefaultSymbol(symbol) {
+        return symbol && ts.length(symbol.declarations) > 0 && hasModifier(symbol.declarations[0], 512);
+    }
+    function tryExtractTSExtension(fileName) {
+        return ts.find(ts.supportedTSExtensionsForExtractExtension, function (extension) { return ts.fileExtensionIs(fileName, extension); });
+    }
+    ts.tryExtractTSExtension = tryExtractTSExtension;
+    function getExpandedCharCodes(input) {
+        var output = [];
+        var length = input.length;
+        for (var i = 0; i < length; i++) {
+            var charCode = input.charCodeAt(i);
+            if (charCode < 0x80) {
+                output.push(charCode);
+            }
+            else if (charCode < 0x800) {
+                output.push((charCode >> 6) | 192);
+                output.push((charCode & 63) | 128);
+            }
+            else if (charCode < 0x10000) {
+                output.push((charCode >> 12) | 224);
+                output.push(((charCode >> 6) & 63) | 128);
+                output.push((charCode & 63) | 128);
+            }
+            else if (charCode < 0x20000) {
+                output.push((charCode >> 18) | 240);
+                output.push(((charCode >> 12) & 63) | 128);
+                output.push(((charCode >> 6) & 63) | 128);
+                output.push((charCode & 63) | 128);
+            }
+            else {
+                ts.Debug.assert(false, "Unexpected code point");
+            }
+        }
+        return output;
+    }
+    var base64Digits = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+    function convertToBase64(input) {
+        var result = "";
+        var charCodes = getExpandedCharCodes(input);
+        var i = 0;
+        var length = charCodes.length;
+        var byte1, byte2, byte3, byte4;
+        while (i < length) {
+            byte1 = charCodes[i] >> 2;
+            byte2 = (charCodes[i] & 3) << 4 | charCodes[i + 1] >> 4;
+            byte3 = (charCodes[i + 1] & 15) << 2 | charCodes[i + 2] >> 6;
+            byte4 = charCodes[i + 2] & 63;
+            if (i + 1 >= length) {
+                byte3 = byte4 = 64;
+            }
+            else if (i + 2 >= length) {
+                byte4 = 64;
+            }
+            result += base64Digits.charAt(byte1) + base64Digits.charAt(byte2) + base64Digits.charAt(byte3) + base64Digits.charAt(byte4);
+            i += 3;
+        }
+        return result;
+    }
+    ts.convertToBase64 = convertToBase64;
+    function getStringFromExpandedCharCodes(codes) {
+        var output = "";
+        var i = 0;
+        var length = codes.length;
+        while (i < length) {
+            var charCode = codes[i];
+            if (charCode < 0x80) {
+                output += String.fromCharCode(charCode);
+                i++;
+            }
+            else if ((charCode & 192) === 192) {
+                var value = charCode & 63;
+                i++;
+                var nextCode = codes[i];
+                while ((nextCode & 192) === 128) {
+                    value = (value << 6) | (nextCode & 63);
+                    i++;
+                    nextCode = codes[i];
+                }
+                output += String.fromCharCode(value);
+            }
+            else {
+                output += String.fromCharCode(charCode);
+                i++;
+            }
+        }
+        return output;
+    }
+    function base64encode(host, input) {
+        if (host && host.base64encode) {
+            return host.base64encode(input);
+        }
+        return convertToBase64(input);
+    }
+    ts.base64encode = base64encode;
+    function base64decode(host, input) {
+        if (host && host.base64decode) {
+            return host.base64decode(input);
+        }
+        var length = input.length;
+        var expandedCharCodes = [];
+        var i = 0;
+        while (i < length) {
+            if (input.charCodeAt(i) === base64Digits.charCodeAt(64)) {
+                break;
+            }
+            var ch1 = base64Digits.indexOf(input[i]);
+            var ch2 = base64Digits.indexOf(input[i + 1]);
+            var ch3 = base64Digits.indexOf(input[i + 2]);
+            var ch4 = base64Digits.indexOf(input[i + 3]);
+            var code1 = ((ch1 & 63) << 2) | ((ch2 >> 4) & 3);
+            var code2 = ((ch2 & 15) << 4) | ((ch3 >> 2) & 15);
+            var code3 = ((ch3 & 3) << 6) | (ch4 & 63);
+            if (code2 === 0 && ch3 !== 0) {
+                expandedCharCodes.push(code1);
+            }
+            else if (code3 === 0 && ch4 !== 0) {
+                expandedCharCodes.push(code1, code2);
+            }
+            else {
+                expandedCharCodes.push(code1, code2, code3);
+            }
+            i += 4;
+        }
+        return getStringFromExpandedCharCodes(expandedCharCodes);
+    }
+    ts.base64decode = base64decode;
+    function readJson(path, host) {
+        try {
+            var jsonText = host.readFile(path);
+            if (!jsonText)
+                return {};
+            var result = ts.parseConfigFileTextToJson(path, jsonText);
+            if (result.error) {
+                return {};
+            }
+            return result.config;
+        }
+        catch (e) {
+            return {};
+        }
+    }
+    ts.readJson = readJson;
+    function directoryProbablyExists(directoryName, host) {
+        return !host.directoryExists || host.directoryExists(directoryName);
+    }
+    ts.directoryProbablyExists = directoryProbablyExists;
+    var carriageReturnLineFeed = "\r\n";
+    var lineFeed = "\n";
+    function getNewLineCharacter(options, getNewLine) {
+        switch (options.newLine) {
+            case 0:
+                return carriageReturnLineFeed;
+            case 1:
+                return lineFeed;
+        }
+        return getNewLine ? getNewLine() : ts.sys ? ts.sys.newLine : carriageReturnLineFeed;
+    }
+    ts.getNewLineCharacter = getNewLineCharacter;
+    function createRange(pos, end) {
+        if (end === void 0) { end = pos; }
+        ts.Debug.assert(end >= pos || end === -1);
+        return { pos: pos, end: end };
+    }
+    ts.createRange = createRange;
+    function moveRangeEnd(range, end) {
+        return createRange(range.pos, end);
+    }
+    ts.moveRangeEnd = moveRangeEnd;
+    function moveRangePos(range, pos) {
+        return createRange(pos, range.end);
+    }
+    ts.moveRangePos = moveRangePos;
+    function moveRangePastDecorators(node) {
+        return node.decorators && node.decorators.length > 0
+            ? moveRangePos(node, node.decorators.end)
+            : node;
+    }
+    ts.moveRangePastDecorators = moveRangePastDecorators;
+    function moveRangePastModifiers(node) {
+        return node.modifiers && node.modifiers.length > 0
+            ? moveRangePos(node, node.modifiers.end)
+            : moveRangePastDecorators(node);
+    }
+    ts.moveRangePastModifiers = moveRangePastModifiers;
+    function isCollapsedRange(range) {
+        return range.pos === range.end;
+    }
+    ts.isCollapsedRange = isCollapsedRange;
+    function createTokenRange(pos, token) {
+        return createRange(pos, pos + ts.tokenToString(token).length);
+    }
+    ts.createTokenRange = createTokenRange;
+    function rangeIsOnSingleLine(range, sourceFile) {
+        return rangeStartIsOnSameLineAsRangeEnd(range, range, sourceFile);
+    }
+    ts.rangeIsOnSingleLine = rangeIsOnSingleLine;
+    function rangeStartPositionsAreOnSameLine(range1, range2, sourceFile) {
+        return positionsAreOnSameLine(getStartPositionOfRange(range1, sourceFile, false), getStartPositionOfRange(range2, sourceFile, false), sourceFile);
+    }
+    ts.rangeStartPositionsAreOnSameLine = rangeStartPositionsAreOnSameLine;
+    function rangeEndPositionsAreOnSameLine(range1, range2, sourceFile) {
+        return positionsAreOnSameLine(range1.end, range2.end, sourceFile);
+    }
+    ts.rangeEndPositionsAreOnSameLine = rangeEndPositionsAreOnSameLine;
+    function rangeStartIsOnSameLineAsRangeEnd(range1, range2, sourceFile) {
+        return positionsAreOnSameLine(getStartPositionOfRange(range1, sourceFile, false), range2.end, sourceFile);
+    }
+    ts.rangeStartIsOnSameLineAsRangeEnd = rangeStartIsOnSameLineAsRangeEnd;
+    function rangeEndIsOnSameLineAsRangeStart(range1, range2, sourceFile) {
+        return positionsAreOnSameLine(range1.end, getStartPositionOfRange(range2, sourceFile, false), sourceFile);
+    }
+    ts.rangeEndIsOnSameLineAsRangeStart = rangeEndIsOnSameLineAsRangeStart;
+    function getLinesBetweenRangeEndAndRangeStart(range1, range2, sourceFile, includeSecondRangeComments) {
+        var range2Start = getStartPositionOfRange(range2, sourceFile, includeSecondRangeComments);
+        return ts.getLinesBetweenPositions(sourceFile, range1.end, range2Start);
+    }
+    ts.getLinesBetweenRangeEndAndRangeStart = getLinesBetweenRangeEndAndRangeStart;
+    function getLinesBetweenRangeEndPositions(range1, range2, sourceFile) {
+        return ts.getLinesBetweenPositions(sourceFile, range1.end, range2.end);
+    }
+    ts.getLinesBetweenRangeEndPositions = getLinesBetweenRangeEndPositions;
+    function isNodeArrayMultiLine(list, sourceFile) {
+        return !positionsAreOnSameLine(list.pos, list.end, sourceFile);
+    }
+    ts.isNodeArrayMultiLine = isNodeArrayMultiLine;
+    function positionsAreOnSameLine(pos1, pos2, sourceFile) {
+        return ts.getLinesBetweenPositions(sourceFile, pos1, pos2) === 0;
+    }
+    ts.positionsAreOnSameLine = positionsAreOnSameLine;
+    function getStartPositionOfRange(range, sourceFile, includeComments) {
+        return positionIsSynthesized(range.pos) ? -1 : ts.skipTrivia(sourceFile.text, range.pos, false, includeComments);
+    }
+    ts.getStartPositionOfRange = getStartPositionOfRange;
+    function getLinesBetweenPositionAndPrecedingNonWhitespaceCharacter(pos, stopPos, sourceFile, includeComments) {
+        var startPos = ts.skipTrivia(sourceFile.text, pos, false, includeComments);
+        var prevPos = getPreviousNonWhitespacePosition(startPos, stopPos, sourceFile);
+        return ts.getLinesBetweenPositions(sourceFile, prevPos !== null && prevPos !== void 0 ? prevPos : stopPos, startPos);
+    }
+    ts.getLinesBetweenPositionAndPrecedingNonWhitespaceCharacter = getLinesBetweenPositionAndPrecedingNonWhitespaceCharacter;
+    function getLinesBetweenPositionAndNextNonWhitespaceCharacter(pos, stopPos, sourceFile, includeComments) {
+        var nextPos = ts.skipTrivia(sourceFile.text, pos, false, includeComments);
+        return ts.getLinesBetweenPositions(sourceFile, pos, Math.min(stopPos, nextPos));
+    }
+    ts.getLinesBetweenPositionAndNextNonWhitespaceCharacter = getLinesBetweenPositionAndNextNonWhitespaceCharacter;
+    function getPreviousNonWhitespacePosition(pos, stopPos, sourceFile) {
+        if (stopPos === void 0) { stopPos = 0; }
+        while (pos-- > stopPos) {
+            if (!ts.isWhiteSpaceLike(sourceFile.text.charCodeAt(pos))) {
+                return pos;
+            }
+        }
+    }
+    function isDeclarationNameOfEnumOrNamespace(node) {
+        var parseNode = ts.getParseTreeNode(node);
+        if (parseNode) {
+            switch (parseNode.parent.kind) {
+                case 248:
+                case 249:
+                    return parseNode === parseNode.parent.name;
+            }
+        }
+        return false;
+    }
+    ts.isDeclarationNameOfEnumOrNamespace = isDeclarationNameOfEnumOrNamespace;
+    function getInitializedVariables(node) {
+        return ts.filter(node.declarations, isInitializedVariable);
+    }
+    ts.getInitializedVariables = getInitializedVariables;
+    function isInitializedVariable(node) {
+        return node.initializer !== undefined;
+    }
+    function isWatchSet(options) {
+        return options.watch && options.hasOwnProperty("watch");
+    }
+    ts.isWatchSet = isWatchSet;
+    function closeFileWatcher(watcher) {
+        watcher.close();
+    }
+    ts.closeFileWatcher = closeFileWatcher;
+    function getCheckFlags(symbol) {
+        return symbol.flags & 33554432 ? symbol.checkFlags : 0;
+    }
+    ts.getCheckFlags = getCheckFlags;
+    function getDeclarationModifierFlagsFromSymbol(s) {
+        if (s.valueDeclaration) {
+            var flags = ts.getCombinedModifierFlags(s.valueDeclaration);
+            return s.parent && s.parent.flags & 32 ? flags : flags & ~28;
+        }
+        if (getCheckFlags(s) & 6) {
+            var checkFlags = s.checkFlags;
+            var accessModifier = checkFlags & 1024 ? 8 :
+                checkFlags & 256 ? 4 :
+                    16;
+            var staticModifier = checkFlags & 2048 ? 32 : 0;
+            return accessModifier | staticModifier;
+        }
+        if (s.flags & 4194304) {
+            return 4 | 32;
+        }
+        return 0;
+    }
+    ts.getDeclarationModifierFlagsFromSymbol = getDeclarationModifierFlagsFromSymbol;
+    function skipAlias(symbol, checker) {
+        return symbol.flags & 2097152 ? checker.getAliasedSymbol(symbol) : symbol;
+    }
+    ts.skipAlias = skipAlias;
+    function getCombinedLocalAndExportSymbolFlags(symbol) {
+        return symbol.exportSymbol ? symbol.exportSymbol.flags | symbol.flags : symbol.flags;
+    }
+    ts.getCombinedLocalAndExportSymbolFlags = getCombinedLocalAndExportSymbolFlags;
+    function isWriteOnlyAccess(node) {
+        return accessKind(node) === 1;
+    }
+    ts.isWriteOnlyAccess = isWriteOnlyAccess;
+    function isWriteAccess(node) {
+        return accessKind(node) !== 0;
+    }
+    ts.isWriteAccess = isWriteAccess;
+    function accessKind(node) {
+        var parent = node.parent;
+        if (!parent)
+            return 0;
+        switch (parent.kind) {
+            case 200:
+                return accessKind(parent);
+            case 208:
+            case 207:
+                var operator = parent.operator;
+                return operator === 45 || operator === 46 ? writeOrReadWrite() : 0;
+            case 209:
+                var _a = parent, left = _a.left, operatorToken = _a.operatorToken;
+                return left === node && isAssignmentOperator(operatorToken.kind) ?
+                    operatorToken.kind === 62 ? 1 : writeOrReadWrite()
+                    : 0;
+            case 194:
+                return parent.name !== node ? 0 : accessKind(parent);
+            case 281: {
+                var parentAccess = accessKind(parent.parent);
+                return node === parent.name ? reverseAccessKind(parentAccess) : parentAccess;
+            }
+            case 282:
+                return node === parent.objectAssignmentInitializer ? 0 : accessKind(parent.parent);
+            case 192:
+                return accessKind(parent);
+            default:
+                return 0;
+        }
+        function writeOrReadWrite() {
+            return parent.parent && skipParenthesesUp(parent.parent).kind === 226 ? 1 : 2;
+        }
+    }
+    function reverseAccessKind(a) {
+        switch (a) {
+            case 0:
+                return 1;
+            case 1:
+                return 0;
+            case 2:
+                return 2;
+            default:
+                return ts.Debug.assertNever(a);
+        }
+    }
+    function compareDataObjects(dst, src) {
+        if (!dst || !src || Object.keys(dst).length !== Object.keys(src).length) {
+            return false;
+        }
+        for (var e in dst) {
+            if (typeof dst[e] === "object") {
+                if (!compareDataObjects(dst[e], src[e])) {
+                    return false;
+                }
+            }
+            else if (typeof dst[e] !== "function") {
+                if (dst[e] !== src[e]) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+    ts.compareDataObjects = compareDataObjects;
+    function clearMap(map, onDeleteValue) {
+        map.forEach(onDeleteValue);
+        map.clear();
+    }
+    ts.clearMap = clearMap;
+    function mutateMapSkippingNewValues(map, newMap, options) {
+        var onDeleteValue = options.onDeleteValue, onExistingValue = options.onExistingValue;
+        map.forEach(function (existingValue, key) {
+            var valueInNewMap = newMap.get(key);
+            if (valueInNewMap === undefined) {
+                map.delete(key);
+                onDeleteValue(existingValue, key);
+            }
+            else if (onExistingValue) {
+                onExistingValue(existingValue, valueInNewMap, key);
+            }
+        });
+    }
+    ts.mutateMapSkippingNewValues = mutateMapSkippingNewValues;
+    function mutateMap(map, newMap, options) {
+        mutateMapSkippingNewValues(map, newMap, options);
+        var createNewValue = options.createNewValue;
+        newMap.forEach(function (valueInNewMap, key) {
+            if (!map.has(key)) {
+                map.set(key, createNewValue(key, valueInNewMap));
+            }
+        });
+    }
+    ts.mutateMap = mutateMap;
+    function isAbstractConstructorType(type) {
+        return !!(getObjectFlags(type) & 16) && !!type.symbol && isAbstractConstructorSymbol(type.symbol);
+    }
+    ts.isAbstractConstructorType = isAbstractConstructorType;
+    function isAbstractConstructorSymbol(symbol) {
+        if (symbol.flags & 32) {
+            var declaration = getClassLikeDeclarationOfSymbol(symbol);
+            return !!declaration && hasModifier(declaration, 128);
+        }
+        return false;
+    }
+    ts.isAbstractConstructorSymbol = isAbstractConstructorSymbol;
+    function getClassLikeDeclarationOfSymbol(symbol) {
+        return ts.find(symbol.declarations, ts.isClassLike);
+    }
+    ts.getClassLikeDeclarationOfSymbol = getClassLikeDeclarationOfSymbol;
+    function getObjectFlags(type) {
+        return type.flags & 3899393 ? type.objectFlags : 0;
+    }
+    ts.getObjectFlags = getObjectFlags;
+    function typeHasCallOrConstructSignatures(type, checker) {
+        return checker.getSignaturesOfType(type, 0).length !== 0 || checker.getSignaturesOfType(type, 1).length !== 0;
+    }
+    ts.typeHasCallOrConstructSignatures = typeHasCallOrConstructSignatures;
+    function forSomeAncestorDirectory(directory, callback) {
+        return !!ts.forEachAncestorDirectory(directory, function (d) { return callback(d) ? true : undefined; });
+    }
+    ts.forSomeAncestorDirectory = forSomeAncestorDirectory;
+    function isUMDExportSymbol(symbol) {
+        return !!symbol && !!symbol.declarations && !!symbol.declarations[0] && ts.isNamespaceExportDeclaration(symbol.declarations[0]);
+    }
+    ts.isUMDExportSymbol = isUMDExportSymbol;
+    function showModuleSpecifier(_a) {
+        var moduleSpecifier = _a.moduleSpecifier;
+        return ts.isStringLiteral(moduleSpecifier) ? moduleSpecifier.text : getTextOfNode(moduleSpecifier);
+    }
+    ts.showModuleSpecifier = showModuleSpecifier;
+    function getLastChild(node) {
+        var lastChild;
+        ts.forEachChild(node, function (child) {
+            if (nodeIsPresent(child))
+                lastChild = child;
+        }, function (children) {
+            for (var i = children.length - 1; i >= 0; i--) {
+                if (nodeIsPresent(children[i])) {
+                    lastChild = children[i];
+                    break;
+                }
+            }
+        });
+        return lastChild;
+    }
+    ts.getLastChild = getLastChild;
+    function addToSeen(seen, key, value) {
+        if (value === void 0) { value = true; }
+        key = String(key);
+        if (seen.has(key)) {
+            return false;
+        }
+        seen.set(key, value);
+        return true;
+    }
+    ts.addToSeen = addToSeen;
+    function isObjectTypeDeclaration(node) {
+        return ts.isClassLike(node) || ts.isInterfaceDeclaration(node) || ts.isTypeLiteralNode(node);
+    }
+    ts.isObjectTypeDeclaration = isObjectTypeDeclaration;
+    function isTypeNodeKind(kind) {
+        return (kind >= 168 && kind <= 188)
+            || kind === 125
+            || kind === 148
+            || kind === 140
+            || kind === 151
+            || kind === 141
+            || kind === 128
+            || kind === 143
+            || kind === 144
+            || kind === 104
+            || kind === 110
+            || kind === 146
+            || kind === 100
+            || kind === 137
+            || kind === 216
+            || kind === 295
+            || kind === 296
+            || kind === 297
+            || kind === 298
+            || kind === 299
+            || kind === 300
+            || kind === 301;
+    }
+    ts.isTypeNodeKind = isTypeNodeKind;
+    function isAccessExpression(node) {
+        return node.kind === 194 || node.kind === 195;
+    }
+    ts.isAccessExpression = isAccessExpression;
+    function getNameOfAccessExpression(node) {
+        if (node.kind === 194) {
+            return node.name;
+        }
+        ts.Debug.assert(node.kind === 195);
+        return node.argumentExpression;
+    }
+    ts.getNameOfAccessExpression = getNameOfAccessExpression;
+    function isBundleFileTextLike(section) {
+        switch (section.kind) {
+            case "text":
+            case "internal":
+                return true;
+            default:
+                return false;
+        }
+    }
+    ts.isBundleFileTextLike = isBundleFileTextLike;
+    function isNamedImportsOrExports(node) {
+        return node.kind === 257 || node.kind === 261;
+    }
+    ts.isNamedImportsOrExports = isNamedImportsOrExports;
+    function Symbol(flags, name) {
+        this.flags = flags;
+        this.escapedName = name;
+        this.declarations = undefined;
+        this.valueDeclaration = undefined;
+        this.id = undefined;
+        this.mergeId = undefined;
+        this.parent = undefined;
+    }
+    function Type(checker, flags) {
+        this.flags = flags;
+        if (ts.Debug.isDebugging) {
+            this.checker = checker;
+        }
+    }
+    function Signature(checker, flags) {
+        this.flags = flags;
+        if (ts.Debug.isDebugging) {
+            this.checker = checker;
+        }
+    }
+    function Node(kind, pos, end) {
+        this.pos = pos;
+        this.end = end;
+        this.kind = kind;
+        this.id = 0;
+        this.flags = 0;
+        this.modifierFlagsCache = 0;
+        this.transformFlags = 0;
+        this.parent = undefined;
+        this.original = undefined;
+    }
+    function Token(kind, pos, end) {
+        this.pos = pos;
+        this.end = end;
+        this.kind = kind;
+        this.id = 0;
+        this.flags = 0;
+        this.transformFlags = 0;
+        this.parent = undefined;
+    }
+    function Identifier(kind, pos, end) {
+        this.pos = pos;
+        this.end = end;
+        this.kind = kind;
+        this.id = 0;
+        this.flags = 0;
+        this.transformFlags = 0;
+        this.parent = undefined;
+        this.original = undefined;
+        this.flowNode = undefined;
+    }
+    function SourceMapSource(fileName, text, skipTrivia) {
+        this.fileName = fileName;
+        this.text = text;
+        this.skipTrivia = skipTrivia || (function (pos) { return pos; });
+    }
+    ts.objectAllocator = {
+        getNodeConstructor: function () { return Node; },
+        getTokenConstructor: function () { return Token; },
+        getIdentifierConstructor: function () { return Identifier; },
+        getPrivateIdentifierConstructor: function () { return Node; },
+        getSourceFileConstructor: function () { return Node; },
+        getSymbolConstructor: function () { return Symbol; },
+        getTypeConstructor: function () { return Type; },
+        getSignatureConstructor: function () { return Signature; },
+        getSourceMapSourceConstructor: function () { return SourceMapSource; },
+    };
+    function setObjectAllocator(alloc) {
+        ts.objectAllocator = alloc;
+    }
+    ts.setObjectAllocator = setObjectAllocator;
+    function formatStringFromArgs(text, args, baseIndex) {
+        if (baseIndex === void 0) { baseIndex = 0; }
+        return text.replace(/{(\d+)}/g, function (_match, index) { return "" + ts.Debug.checkDefined(args[+index + baseIndex]); });
+    }
+    ts.formatStringFromArgs = formatStringFromArgs;
+    function setLocalizedDiagnosticMessages(messages) {
+        ts.localizedDiagnosticMessages = messages;
+    }
+    ts.setLocalizedDiagnosticMessages = setLocalizedDiagnosticMessages;
+    function getLocaleSpecificMessage(message) {
+        return ts.localizedDiagnosticMessages && ts.localizedDiagnosticMessages[message.key] || message.message;
+    }
+    ts.getLocaleSpecificMessage = getLocaleSpecificMessage;
+    function createFileDiagnostic(file, start, length, message) {
+        ts.Debug.assertGreaterThanOrEqual(start, 0);
+        ts.Debug.assertGreaterThanOrEqual(length, 0);
+        if (file) {
+            ts.Debug.assertLessThanOrEqual(start, file.text.length);
+            ts.Debug.assertLessThanOrEqual(start + length, file.text.length);
+        }
+        var text = getLocaleSpecificMessage(message);
+        if (arguments.length > 4) {
+            text = formatStringFromArgs(text, arguments, 4);
+        }
+        return {
+            file: file,
+            start: start,
+            length: length,
+            messageText: text,
+            category: message.category,
+            code: message.code,
+            reportsUnnecessary: message.reportsUnnecessary,
+        };
+    }
+    ts.createFileDiagnostic = createFileDiagnostic;
+    function formatMessage(_dummy, message) {
+        var text = getLocaleSpecificMessage(message);
+        if (arguments.length > 2) {
+            text = formatStringFromArgs(text, arguments, 2);
+        }
+        return text;
+    }
+    ts.formatMessage = formatMessage;
+    function createCompilerDiagnostic(message) {
+        var text = getLocaleSpecificMessage(message);
+        if (arguments.length > 1) {
+            text = formatStringFromArgs(text, arguments, 1);
+        }
+        return {
+            file: undefined,
+            start: undefined,
+            length: undefined,
+            messageText: text,
+            category: message.category,
+            code: message.code,
+            reportsUnnecessary: message.reportsUnnecessary,
+        };
+    }
+    ts.createCompilerDiagnostic = createCompilerDiagnostic;
+    function createCompilerDiagnosticFromMessageChain(chain) {
+        return {
+            file: undefined,
+            start: undefined,
+            length: undefined,
+            code: chain.code,
+            category: chain.category,
+            messageText: chain.next ? chain : chain.messageText,
+        };
+    }
+    ts.createCompilerDiagnosticFromMessageChain = createCompilerDiagnosticFromMessageChain;
+    function chainDiagnosticMessages(details, message) {
+        var text = getLocaleSpecificMessage(message);
+        if (arguments.length > 2) {
+            text = formatStringFromArgs(text, arguments, 2);
+        }
+        return {
+            messageText: text,
+            category: message.category,
+            code: message.code,
+            next: details === undefined || Array.isArray(details) ? details : [details]
+        };
+    }
+    ts.chainDiagnosticMessages = chainDiagnosticMessages;
+    function concatenateDiagnosticMessageChains(headChain, tailChain) {
+        var lastChain = headChain;
+        while (lastChain.next) {
+            lastChain = lastChain.next[0];
+        }
+        lastChain.next = [tailChain];
+    }
+    ts.concatenateDiagnosticMessageChains = concatenateDiagnosticMessageChains;
+    function getDiagnosticFilePath(diagnostic) {
+        return diagnostic.file ? diagnostic.file.path : undefined;
+    }
+    function compareDiagnostics(d1, d2) {
+        return compareDiagnosticsSkipRelatedInformation(d1, d2) ||
+            compareRelatedInformation(d1, d2) ||
+            0;
+    }
+    ts.compareDiagnostics = compareDiagnostics;
+    function compareDiagnosticsSkipRelatedInformation(d1, d2) {
+        return ts.compareStringsCaseSensitive(getDiagnosticFilePath(d1), getDiagnosticFilePath(d2)) ||
+            ts.compareValues(d1.start, d2.start) ||
+            ts.compareValues(d1.length, d2.length) ||
+            ts.compareValues(d1.code, d2.code) ||
+            compareMessageText(d1.messageText, d2.messageText) ||
+            0;
+    }
+    ts.compareDiagnosticsSkipRelatedInformation = compareDiagnosticsSkipRelatedInformation;
+    function compareRelatedInformation(d1, d2) {
+        if (!d1.relatedInformation && !d2.relatedInformation) {
+            return 0;
+        }
+        if (d1.relatedInformation && d2.relatedInformation) {
+            return ts.compareValues(d1.relatedInformation.length, d2.relatedInformation.length) || ts.forEach(d1.relatedInformation, function (d1i, index) {
+                var d2i = d2.relatedInformation[index];
+                return compareDiagnostics(d1i, d2i);
+            }) || 0;
+        }
+        return d1.relatedInformation ? -1 : 1;
+    }
+    function compareMessageText(t1, t2) {
+        if (typeof t1 === "string" && typeof t2 === "string") {
+            return ts.compareStringsCaseSensitive(t1, t2);
+        }
+        else if (typeof t1 === "string") {
+            return -1;
+        }
+        else if (typeof t2 === "string") {
+            return 1;
+        }
+        var res = ts.compareStringsCaseSensitive(t1.messageText, t2.messageText);
+        if (res) {
+            return res;
+        }
+        if (!t1.next && !t2.next) {
+            return 0;
+        }
+        if (!t1.next) {
+            return -1;
+        }
+        if (!t2.next) {
+            return 1;
+        }
+        var len = Math.min(t1.next.length, t2.next.length);
+        for (var i = 0; i < len; i++) {
+            res = compareMessageText(t1.next[i], t2.next[i]);
+            if (res) {
+                return res;
+            }
+        }
+        if (t1.next.length < t2.next.length) {
+            return -1;
+        }
+        else if (t1.next.length > t2.next.length) {
+            return 1;
+        }
+        return 0;
+    }
+    function getEmitScriptTarget(compilerOptions) {
+        return compilerOptions.target || 0;
+    }
+    ts.getEmitScriptTarget = getEmitScriptTarget;
+    function getEmitModuleKind(compilerOptions) {
+        return typeof compilerOptions.module === "number" ?
+            compilerOptions.module :
+            getEmitScriptTarget(compilerOptions) >= 2 ? ts.ModuleKind.ES2015 : ts.ModuleKind.CommonJS;
+    }
+    ts.getEmitModuleKind = getEmitModuleKind;
+    function getEmitModuleResolutionKind(compilerOptions) {
+        var moduleResolution = compilerOptions.moduleResolution;
+        if (moduleResolution === undefined) {
+            moduleResolution = getEmitModuleKind(compilerOptions) === ts.ModuleKind.CommonJS ? ts.ModuleResolutionKind.NodeJs : ts.ModuleResolutionKind.Classic;
+        }
+        return moduleResolution;
+    }
+    ts.getEmitModuleResolutionKind = getEmitModuleResolutionKind;
+    function hasJsonModuleEmitEnabled(options) {
+        switch (getEmitModuleKind(options)) {
+            case ts.ModuleKind.CommonJS:
+            case ts.ModuleKind.AMD:
+            case ts.ModuleKind.ES2015:
+            case ts.ModuleKind.ES2020:
+            case ts.ModuleKind.ESNext:
+                return true;
+            default:
+                return false;
+        }
+    }
+    ts.hasJsonModuleEmitEnabled = hasJsonModuleEmitEnabled;
+    function unreachableCodeIsError(options) {
+        return options.allowUnreachableCode === false;
+    }
+    ts.unreachableCodeIsError = unreachableCodeIsError;
+    function unusedLabelIsError(options) {
+        return options.allowUnusedLabels === false;
+    }
+    ts.unusedLabelIsError = unusedLabelIsError;
+    function getAreDeclarationMapsEnabled(options) {
+        return !!(getEmitDeclarations(options) && options.declarationMap);
+    }
+    ts.getAreDeclarationMapsEnabled = getAreDeclarationMapsEnabled;
+    function getAllowSyntheticDefaultImports(compilerOptions) {
+        var moduleKind = getEmitModuleKind(compilerOptions);
+        return compilerOptions.allowSyntheticDefaultImports !== undefined
+            ? compilerOptions.allowSyntheticDefaultImports
+            : compilerOptions.esModuleInterop ||
+                moduleKind === ts.ModuleKind.System;
+    }
+    ts.getAllowSyntheticDefaultImports = getAllowSyntheticDefaultImports;
+    function getEmitDeclarations(compilerOptions) {
+        return !!(compilerOptions.declaration || compilerOptions.composite);
+    }
+    ts.getEmitDeclarations = getEmitDeclarations;
+    function isIncrementalCompilation(options) {
+        return !!(options.incremental || options.composite);
+    }
+    ts.isIncrementalCompilation = isIncrementalCompilation;
+    function getStrictOptionValue(compilerOptions, flag) {
+        return compilerOptions[flag] === undefined ? !!compilerOptions.strict : !!compilerOptions[flag];
+    }
+    ts.getStrictOptionValue = getStrictOptionValue;
+    function compilerOptionsAffectSemanticDiagnostics(newOptions, oldOptions) {
+        return oldOptions !== newOptions &&
+            ts.semanticDiagnosticsOptionDeclarations.some(function (option) { return !isJsonEqual(getCompilerOptionValue(oldOptions, option), getCompilerOptionValue(newOptions, option)); });
+    }
+    ts.compilerOptionsAffectSemanticDiagnostics = compilerOptionsAffectSemanticDiagnostics;
+    function compilerOptionsAffectEmit(newOptions, oldOptions) {
+        return oldOptions !== newOptions &&
+            ts.affectsEmitOptionDeclarations.some(function (option) { return !isJsonEqual(getCompilerOptionValue(oldOptions, option), getCompilerOptionValue(newOptions, option)); });
+    }
+    ts.compilerOptionsAffectEmit = compilerOptionsAffectEmit;
+    function getCompilerOptionValue(options, option) {
+        return option.strictFlag ? getStrictOptionValue(options, option.name) : options[option.name];
+    }
+    ts.getCompilerOptionValue = getCompilerOptionValue;
+    function hasZeroOrOneAsteriskCharacter(str) {
+        var seenAsterisk = false;
+        for (var i = 0; i < str.length; i++) {
+            if (str.charCodeAt(i) === 42) {
+                if (!seenAsterisk) {
+                    seenAsterisk = true;
+                }
+                else {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+    ts.hasZeroOrOneAsteriskCharacter = hasZeroOrOneAsteriskCharacter;
+    function discoverProbableSymlinks(files, getCanonicalFileName, cwd) {
+        var result = ts.createMap();
+        var symlinks = ts.flatten(ts.mapDefined(files, function (sf) {
+            return sf.resolvedModules && ts.compact(ts.arrayFrom(ts.mapIterator(sf.resolvedModules.values(), function (res) {
+                return res && res.originalPath && res.resolvedFileName !== res.originalPath ? [res.resolvedFileName, res.originalPath] : undefined;
+            })));
+        }));
+        for (var _i = 0, symlinks_1 = symlinks; _i < symlinks_1.length; _i++) {
+            var _a = symlinks_1[_i], resolvedPath = _a[0], originalPath = _a[1];
+            var _b = guessDirectorySymlink(resolvedPath, originalPath, cwd, getCanonicalFileName), commonResolved = _b[0], commonOriginal = _b[1];
+            result.set(commonOriginal, commonResolved);
+        }
+        return result;
+    }
+    ts.discoverProbableSymlinks = discoverProbableSymlinks;
+    function guessDirectorySymlink(a, b, cwd, getCanonicalFileName) {
+        var aParts = ts.getPathComponents(ts.toPath(a, cwd, getCanonicalFileName));
+        var bParts = ts.getPathComponents(ts.toPath(b, cwd, getCanonicalFileName));
+        while (!isNodeModulesOrScopedPackageDirectory(aParts[aParts.length - 2], getCanonicalFileName) &&
+            !isNodeModulesOrScopedPackageDirectory(bParts[bParts.length - 2], getCanonicalFileName) &&
+            getCanonicalFileName(aParts[aParts.length - 1]) === getCanonicalFileName(bParts[bParts.length - 1])) {
+            aParts.pop();
+            bParts.pop();
+        }
+        return [ts.getPathFromPathComponents(aParts), ts.getPathFromPathComponents(bParts)];
+    }
+    function isNodeModulesOrScopedPackageDirectory(s, getCanonicalFileName) {
+        return getCanonicalFileName(s) === "node_modules" || ts.startsWith(s, "@");
+    }
+    function stripLeadingDirectorySeparator(s) {
+        return ts.isAnyDirectorySeparator(s.charCodeAt(0)) ? s.slice(1) : undefined;
+    }
+    function tryRemoveDirectoryPrefix(path, dirPath, getCanonicalFileName) {
+        var withoutPrefix = ts.tryRemovePrefix(path, dirPath, getCanonicalFileName);
+        return withoutPrefix === undefined ? undefined : stripLeadingDirectorySeparator(withoutPrefix);
+    }
+    ts.tryRemoveDirectoryPrefix = tryRemoveDirectoryPrefix;
+    var reservedCharacterPattern = /[^\w\s\/]/g;
+    function regExpEscape(text) {
+        return text.replace(reservedCharacterPattern, escapeRegExpCharacter);
+    }
+    ts.regExpEscape = regExpEscape;
+    function escapeRegExpCharacter(match) {
+        return "\\" + match;
+    }
+    var wildcardCharCodes = [42, 63];
+    ts.commonPackageFolders = ["node_modules", "bower_components", "jspm_packages"];
+    var implicitExcludePathRegexPattern = "(?!(" + ts.commonPackageFolders.join("|") + ")(/|$))";
+    var filesMatcher = {
+        singleAsteriskRegexFragment: "([^./]|(\\.(?!min\\.js$))?)*",
+        doubleAsteriskRegexFragment: "(/" + implicitExcludePathRegexPattern + "[^/.][^/]*)*?",
+        replaceWildcardCharacter: function (match) { return replaceWildcardCharacter(match, filesMatcher.singleAsteriskRegexFragment); }
+    };
+    var directoriesMatcher = {
+        singleAsteriskRegexFragment: "[^/]*",
+        doubleAsteriskRegexFragment: "(/" + implicitExcludePathRegexPattern + "[^/.][^/]*)*?",
+        replaceWildcardCharacter: function (match) { return replaceWildcardCharacter(match, directoriesMatcher.singleAsteriskRegexFragment); }
+    };
+    var excludeMatcher = {
+        singleAsteriskRegexFragment: "[^/]*",
+        doubleAsteriskRegexFragment: "(/.+?)?",
+        replaceWildcardCharacter: function (match) { return replaceWildcardCharacter(match, excludeMatcher.singleAsteriskRegexFragment); }
+    };
+    var wildcardMatchers = {
+        files: filesMatcher,
+        directories: directoriesMatcher,
+        exclude: excludeMatcher
+    };
+    function getRegularExpressionForWildcard(specs, basePath, usage) {
+        var patterns = getRegularExpressionsForWildcards(specs, basePath, usage);
+        if (!patterns || !patterns.length) {
+            return undefined;
+        }
+        var pattern = patterns.map(function (pattern) { return "(" + pattern + ")"; }).join("|");
+        var terminator = usage === "exclude" ? "($|/)" : "$";
+        return "^(" + pattern + ")" + terminator;
+    }
+    ts.getRegularExpressionForWildcard = getRegularExpressionForWildcard;
+    function getRegularExpressionsForWildcards(specs, basePath, usage) {
+        if (specs === undefined || specs.length === 0) {
+            return undefined;
+        }
+        return ts.flatMap(specs, function (spec) {
+            return spec && getSubPatternFromSpec(spec, basePath, usage, wildcardMatchers[usage]);
+        });
+    }
+    ts.getRegularExpressionsForWildcards = getRegularExpressionsForWildcards;
+    function isImplicitGlob(lastPathComponent) {
+        return !/[.*?]/.test(lastPathComponent);
+    }
+    ts.isImplicitGlob = isImplicitGlob;
+    function getSubPatternFromSpec(spec, basePath, usage, _a) {
+        var singleAsteriskRegexFragment = _a.singleAsteriskRegexFragment, doubleAsteriskRegexFragment = _a.doubleAsteriskRegexFragment, replaceWildcardCharacter = _a.replaceWildcardCharacter;
+        var subpattern = "";
+        var hasWrittenComponent = false;
+        var components = ts.getNormalizedPathComponents(spec, basePath);
+        var lastComponent = ts.last(components);
+        if (usage !== "exclude" && lastComponent === "**") {
+            return undefined;
+        }
+        components[0] = ts.removeTrailingDirectorySeparator(components[0]);
+        if (isImplicitGlob(lastComponent)) {
+            components.push("**", "*");
+        }
+        var optionalCount = 0;
+        for (var _i = 0, components_1 = components; _i < components_1.length; _i++) {
+            var component = components_1[_i];
+            if (component === "**") {
+                subpattern += doubleAsteriskRegexFragment;
+            }
+            else {
+                if (usage === "directories") {
+                    subpattern += "(";
+                    optionalCount++;
+                }
+                if (hasWrittenComponent) {
+                    subpattern += ts.directorySeparator;
+                }
+                if (usage !== "exclude") {
+                    var componentPattern = "";
+                    if (component.charCodeAt(0) === 42) {
+                        componentPattern += "([^./]" + singleAsteriskRegexFragment + ")?";
+                        component = component.substr(1);
+                    }
+                    else if (component.charCodeAt(0) === 63) {
+                        componentPattern += "[^./]";
+                        component = component.substr(1);
+                    }
+                    componentPattern += component.replace(reservedCharacterPattern, replaceWildcardCharacter);
+                    if (componentPattern !== component) {
+                        subpattern += implicitExcludePathRegexPattern;
+                    }
+                    subpattern += componentPattern;
+                }
+                else {
+                    subpattern += component.replace(reservedCharacterPattern, replaceWildcardCharacter);
+                }
+            }
+            hasWrittenComponent = true;
+        }
+        while (optionalCount > 0) {
+            subpattern += ")?";
+            optionalCount--;
+        }
+        return subpattern;
+    }
+    function replaceWildcardCharacter(match, singleAsteriskRegexFragment) {
+        return match === "*" ? singleAsteriskRegexFragment : match === "?" ? "[^/]" : "\\" + match;
+    }
+    function getFileMatcherPatterns(path, excludes, includes, useCaseSensitiveFileNames, currentDirectory) {
+        path = ts.normalizePath(path);
+        currentDirectory = ts.normalizePath(currentDirectory);
+        var absolutePath = ts.combinePaths(currentDirectory, path);
+        return {
+            includeFilePatterns: ts.map(getRegularExpressionsForWildcards(includes, absolutePath, "files"), function (pattern) { return "^" + pattern + "$"; }),
+            includeFilePattern: getRegularExpressionForWildcard(includes, absolutePath, "files"),
+            includeDirectoryPattern: getRegularExpressionForWildcard(includes, absolutePath, "directories"),
+            excludePattern: getRegularExpressionForWildcard(excludes, absolutePath, "exclude"),
+            basePaths: getBasePaths(path, includes, useCaseSensitiveFileNames)
+        };
+    }
+    ts.getFileMatcherPatterns = getFileMatcherPatterns;
+    function getRegexFromPattern(pattern, useCaseSensitiveFileNames) {
+        return new RegExp(pattern, useCaseSensitiveFileNames ? "" : "i");
+    }
+    ts.getRegexFromPattern = getRegexFromPattern;
+    function matchFiles(path, extensions, excludes, includes, useCaseSensitiveFileNames, currentDirectory, depth, getFileSystemEntries, realpath) {
+        path = ts.normalizePath(path);
+        currentDirectory = ts.normalizePath(currentDirectory);
+        var patterns = getFileMatcherPatterns(path, excludes, includes, useCaseSensitiveFileNames, currentDirectory);
+        var includeFileRegexes = patterns.includeFilePatterns && patterns.includeFilePatterns.map(function (pattern) { return getRegexFromPattern(pattern, useCaseSensitiveFileNames); });
+        var includeDirectoryRegex = patterns.includeDirectoryPattern && getRegexFromPattern(patterns.includeDirectoryPattern, useCaseSensitiveFileNames);
+        var excludeRegex = patterns.excludePattern && getRegexFromPattern(patterns.excludePattern, useCaseSensitiveFileNames);
+        var results = includeFileRegexes ? includeFileRegexes.map(function () { return []; }) : [[]];
+        var visited = ts.createMap();
+        var toCanonical = ts.createGetCanonicalFileName(useCaseSensitiveFileNames);
+        for (var _i = 0, _a = patterns.basePaths; _i < _a.length; _i++) {
+            var basePath = _a[_i];
+            visitDirectory(basePath, ts.combinePaths(currentDirectory, basePath), depth);
+        }
+        return ts.flatten(results);
+        function visitDirectory(path, absolutePath, depth) {
+            var canonicalPath = toCanonical(realpath(absolutePath));
+            if (visited.has(canonicalPath))
+                return;
+            visited.set(canonicalPath, true);
+            var _a = getFileSystemEntries(path), files = _a.files, directories = _a.directories;
+            var _loop_1 = function (current) {
+                var name = ts.combinePaths(path, current);
+                var absoluteName = ts.combinePaths(absolutePath, current);
+                if (extensions && !ts.fileExtensionIsOneOf(name, extensions))
+                    return "continue";
+                if (excludeRegex && excludeRegex.test(absoluteName))
+                    return "continue";
+                if (!includeFileRegexes) {
+                    results[0].push(name);
+                }
+                else {
+                    var includeIndex = ts.findIndex(includeFileRegexes, function (re) { return re.test(absoluteName); });
+                    if (includeIndex !== -1) {
+                        results[includeIndex].push(name);
+                    }
+                }
+            };
+            for (var _i = 0, _b = ts.sort(files, ts.compareStringsCaseSensitive); _i < _b.length; _i++) {
+                var current = _b[_i];
+                _loop_1(current);
+            }
+            if (depth !== undefined) {
+                depth--;
+                if (depth === 0) {
+                    return;
+                }
+            }
+            for (var _c = 0, _d = ts.sort(directories, ts.compareStringsCaseSensitive); _c < _d.length; _c++) {
+                var current = _d[_c];
+                var name = ts.combinePaths(path, current);
+                var absoluteName = ts.combinePaths(absolutePath, current);
+                if ((!includeDirectoryRegex || includeDirectoryRegex.test(absoluteName)) &&
+                    (!excludeRegex || !excludeRegex.test(absoluteName))) {
+                    visitDirectory(name, absoluteName, depth);
+                }
+            }
+        }
+    }
+    ts.matchFiles = matchFiles;
+    function getBasePaths(path, includes, useCaseSensitiveFileNames) {
+        var basePaths = [path];
+        if (includes) {
+            var includeBasePaths = [];
+            for (var _i = 0, includes_1 = includes; _i < includes_1.length; _i++) {
+                var include = includes_1[_i];
+                var absolute = ts.isRootedDiskPath(include) ? include : ts.normalizePath(ts.combinePaths(path, include));
+                includeBasePaths.push(getIncludeBasePath(absolute));
+            }
+            includeBasePaths.sort(ts.getStringComparer(!useCaseSensitiveFileNames));
+            var _loop_2 = function (includeBasePath) {
+                if (ts.every(basePaths, function (basePath) { return !ts.containsPath(basePath, includeBasePath, path, !useCaseSensitiveFileNames); })) {
+                    basePaths.push(includeBasePath);
+                }
+            };
+            for (var _a = 0, includeBasePaths_1 = includeBasePaths; _a < includeBasePaths_1.length; _a++) {
+                var includeBasePath = includeBasePaths_1[_a];
+                _loop_2(includeBasePath);
+            }
+        }
+        return basePaths;
+    }
+    function getIncludeBasePath(absolute) {
+        var wildcardOffset = ts.indexOfAnyCharCode(absolute, wildcardCharCodes);
+        if (wildcardOffset < 0) {
+            return !ts.hasExtension(absolute)
+                ? absolute
+                : ts.removeTrailingDirectorySeparator(ts.getDirectoryPath(absolute));
+        }
+        return absolute.substring(0, absolute.lastIndexOf(ts.directorySeparator, wildcardOffset));
+    }
+    function ensureScriptKind(fileName, scriptKind) {
+        return scriptKind || getScriptKindFromFileName(fileName) || 3;
+    }
+    ts.ensureScriptKind = ensureScriptKind;
+    function getScriptKindFromFileName(fileName) {
+        var ext = fileName.substr(fileName.lastIndexOf("."));
+        switch (ext.toLowerCase()) {
+            case ".js":
+                return 1;
+            case ".jsx":
+                return 2;
+            case ".ts":
+                return 3;
+            case ".tsx":
+                return 4;
+            case ".json":
+                return 6;
+            default:
+                return 0;
+        }
+    }
+    ts.getScriptKindFromFileName = getScriptKindFromFileName;
+    ts.supportedTSExtensions = [".ts", ".tsx", ".d.ts"];
+    ts.supportedTSExtensionsWithJson = [".ts", ".tsx", ".d.ts", ".json"];
+    ts.supportedTSExtensionsForExtractExtension = [".d.ts", ".ts", ".tsx"];
+    ts.supportedJSExtensions = [".js", ".jsx"];
+    ts.supportedJSAndJsonExtensions = [".js", ".jsx", ".json"];
+    var allSupportedExtensions = __spreadArrays(ts.supportedTSExtensions, ts.supportedJSExtensions);
+    var allSupportedExtensionsWithJson = __spreadArrays(ts.supportedTSExtensions, ts.supportedJSExtensions, [".json"]);
+    function getSupportedExtensions(options, extraFileExtensions) {
+        var needJsExtensions = options && options.allowJs;
+        if (!extraFileExtensions || extraFileExtensions.length === 0) {
+            return needJsExtensions ? allSupportedExtensions : ts.supportedTSExtensions;
+        }
+        var extensions = __spreadArrays(needJsExtensions ? allSupportedExtensions : ts.supportedTSExtensions, ts.mapDefined(extraFileExtensions, function (x) { return x.scriptKind === 7 || needJsExtensions && isJSLike(x.scriptKind) ? x.extension : undefined; }));
+        return ts.deduplicate(extensions, ts.equateStringsCaseSensitive, ts.compareStringsCaseSensitive);
+    }
+    ts.getSupportedExtensions = getSupportedExtensions;
+    function getSuppoertedExtensionsWithJsonIfResolveJsonModule(options, supportedExtensions) {
+        if (!options || !options.resolveJsonModule) {
+            return supportedExtensions;
+        }
+        if (supportedExtensions === allSupportedExtensions) {
+            return allSupportedExtensionsWithJson;
+        }
+        if (supportedExtensions === ts.supportedTSExtensions) {
+            return ts.supportedTSExtensionsWithJson;
+        }
+        return __spreadArrays(supportedExtensions, [".json"]);
+    }
+    ts.getSuppoertedExtensionsWithJsonIfResolveJsonModule = getSuppoertedExtensionsWithJsonIfResolveJsonModule;
+    function isJSLike(scriptKind) {
+        return scriptKind === 1 || scriptKind === 2;
+    }
+    function hasJSFileExtension(fileName) {
+        return ts.some(ts.supportedJSExtensions, function (extension) { return ts.fileExtensionIs(fileName, extension); });
+    }
+    ts.hasJSFileExtension = hasJSFileExtension;
+    function hasTSFileExtension(fileName) {
+        return ts.some(ts.supportedTSExtensions, function (extension) { return ts.fileExtensionIs(fileName, extension); });
+    }
+    ts.hasTSFileExtension = hasTSFileExtension;
+    function isSupportedSourceFileName(fileName, compilerOptions, extraFileExtensions) {
+        if (!fileName) {
+            return false;
+        }
+        var supportedExtensions = getSupportedExtensions(compilerOptions, extraFileExtensions);
+        for (var _i = 0, _a = getSuppoertedExtensionsWithJsonIfResolveJsonModule(compilerOptions, supportedExtensions); _i < _a.length; _i++) {
+            var extension = _a[_i];
+            if (ts.fileExtensionIs(fileName, extension)) {
+                return true;
+            }
+        }
+        return false;
+    }
+    ts.isSupportedSourceFileName = isSupportedSourceFileName;
+    function getExtensionPriority(path, supportedExtensions) {
+        for (var i = supportedExtensions.length - 1; i >= 0; i--) {
+            if (ts.fileExtensionIs(path, supportedExtensions[i])) {
+                return adjustExtensionPriority(i, supportedExtensions);
+            }
+        }
+        return 0;
+    }
+    ts.getExtensionPriority = getExtensionPriority;
+    function adjustExtensionPriority(extensionPriority, supportedExtensions) {
+        if (extensionPriority < 2) {
+            return 0;
+        }
+        else if (extensionPriority < supportedExtensions.length) {
+            return 2;
+        }
+        else {
+            return supportedExtensions.length;
+        }
+    }
+    ts.adjustExtensionPriority = adjustExtensionPriority;
+    function getNextLowestExtensionPriority(extensionPriority, supportedExtensions) {
+        if (extensionPriority < 2) {
+            return 2;
+        }
+        else {
+            return supportedExtensions.length;
+        }
+    }
+    ts.getNextLowestExtensionPriority = getNextLowestExtensionPriority;
+    var extensionsToRemove = [".d.ts", ".ts", ".js", ".tsx", ".jsx", ".json"];
+    function removeFileExtension(path) {
+        for (var _i = 0, extensionsToRemove_1 = extensionsToRemove; _i < extensionsToRemove_1.length; _i++) {
+            var ext = extensionsToRemove_1[_i];
+            var extensionless = tryRemoveExtension(path, ext);
+            if (extensionless !== undefined) {
+                return extensionless;
+            }
+        }
+        return path;
+    }
+    ts.removeFileExtension = removeFileExtension;
+    function tryRemoveExtension(path, extension) {
+        return ts.fileExtensionIs(path, extension) ? removeExtension(path, extension) : undefined;
+    }
+    ts.tryRemoveExtension = tryRemoveExtension;
+    function removeExtension(path, extension) {
+        return path.substring(0, path.length - extension.length);
+    }
+    ts.removeExtension = removeExtension;
+    function changeExtension(path, newExtension) {
+        return ts.changeAnyExtension(path, newExtension, extensionsToRemove, false);
+    }
+    ts.changeExtension = changeExtension;
+    function tryParsePattern(pattern) {
+        ts.Debug.assert(hasZeroOrOneAsteriskCharacter(pattern));
+        var indexOfStar = pattern.indexOf("*");
+        return indexOfStar === -1 ? undefined : {
+            prefix: pattern.substr(0, indexOfStar),
+            suffix: pattern.substr(indexOfStar + 1)
+        };
+    }
+    ts.tryParsePattern = tryParsePattern;
+    function positionIsSynthesized(pos) {
+        return !(pos >= 0);
+    }
+    ts.positionIsSynthesized = positionIsSynthesized;
+    function extensionIsTS(ext) {
+        return ext === ".ts" || ext === ".tsx" || ext === ".d.ts";
+    }
+    ts.extensionIsTS = extensionIsTS;
+    function resolutionExtensionIsTSOrJson(ext) {
+        return extensionIsTS(ext) || ext === ".json";
+    }
+    ts.resolutionExtensionIsTSOrJson = resolutionExtensionIsTSOrJson;
+    function extensionFromPath(path) {
+        var ext = tryGetExtensionFromPath(path);
+        return ext !== undefined ? ext : ts.Debug.fail("File " + path + " has unknown extension.");
+    }
+    ts.extensionFromPath = extensionFromPath;
+    function isAnySupportedFileExtension(path) {
+        return tryGetExtensionFromPath(path) !== undefined;
+    }
+    ts.isAnySupportedFileExtension = isAnySupportedFileExtension;
+    function tryGetExtensionFromPath(path) {
+        return ts.find(extensionsToRemove, function (e) { return ts.fileExtensionIs(path, e); });
+    }
+    ts.tryGetExtensionFromPath = tryGetExtensionFromPath;
+    function isCheckJsEnabledForFile(sourceFile, compilerOptions) {
+        return sourceFile.checkJsDirective ? sourceFile.checkJsDirective.enabled : compilerOptions.checkJs;
+    }
+    ts.isCheckJsEnabledForFile = isCheckJsEnabledForFile;
+    ts.emptyFileSystemEntries = {
+        files: ts.emptyArray,
+        directories: ts.emptyArray
+    };
+    function matchPatternOrExact(patternStrings, candidate) {
+        var patterns = [];
+        for (var _i = 0, patternStrings_1 = patternStrings; _i < patternStrings_1.length; _i++) {
+            var patternString = patternStrings_1[_i];
+            if (!hasZeroOrOneAsteriskCharacter(patternString))
+                continue;
+            var pattern = tryParsePattern(patternString);
+            if (pattern) {
+                patterns.push(pattern);
+            }
+            else if (patternString === candidate) {
+                return patternString;
+            }
+        }
+        return ts.findBestPatternMatch(patterns, function (_) { return _; }, candidate);
+    }
+    ts.matchPatternOrExact = matchPatternOrExact;
+    function sliceAfter(arr, value) {
+        var index = arr.indexOf(value);
+        ts.Debug.assert(index !== -1);
+        return arr.slice(index);
+    }
+    ts.sliceAfter = sliceAfter;
+    function addRelatedInfo(diagnostic) {
+        var _a;
+        var relatedInformation = [];
+        for (var _i = 1; _i < arguments.length; _i++) {
+            relatedInformation[_i - 1] = arguments[_i];
+        }
+        if (!relatedInformation.length) {
+            return diagnostic;
+        }
+        if (!diagnostic.relatedInformation) {
+            diagnostic.relatedInformation = [];
+        }
+        (_a = diagnostic.relatedInformation).push.apply(_a, relatedInformation);
+        return diagnostic;
+    }
+    ts.addRelatedInfo = addRelatedInfo;
+    function minAndMax(arr, getValue) {
+        ts.Debug.assert(arr.length !== 0);
+        var min = getValue(arr[0]);
+        var max = min;
+        for (var i = 1; i < arr.length; i++) {
+            var value = getValue(arr[i]);
+            if (value < min) {
+                min = value;
+            }
+            else if (value > max) {
+                max = value;
+            }
+        }
+        return { min: min, max: max };
+    }
+    ts.minAndMax = minAndMax;
+    var NodeSet = (function () {
+        function NodeSet() {
+            this.map = ts.createMap();
+        }
+        NodeSet.prototype.add = function (node) {
+            this.map.set(String(ts.getNodeId(node)), node);
+        };
+        NodeSet.prototype.tryAdd = function (node) {
+            if (this.has(node))
+                return false;
+            this.add(node);
+            return true;
+        };
+        NodeSet.prototype.has = function (node) {
+            return this.map.has(String(ts.getNodeId(node)));
+        };
+        NodeSet.prototype.forEach = function (cb) {
+            this.map.forEach(cb);
+        };
+        NodeSet.prototype.some = function (pred) {
+            return forEachEntry(this.map, pred) || false;
+        };
+        return NodeSet;
+    }());
+    ts.NodeSet = NodeSet;
+    var NodeMap = (function () {
+        function NodeMap() {
+            this.map = ts.createMap();
+        }
+        NodeMap.prototype.get = function (node) {
+            var res = this.map.get(String(ts.getNodeId(node)));
+            return res && res.value;
+        };
+        NodeMap.prototype.getOrUpdate = function (node, setValue) {
+            var res = this.get(node);
+            if (res)
+                return res;
+            var value = setValue();
+            this.set(node, value);
+            return value;
+        };
+        NodeMap.prototype.set = function (node, value) {
+            this.map.set(String(ts.getNodeId(node)), { node: node, value: value });
+        };
+        NodeMap.prototype.has = function (node) {
+            return this.map.has(String(ts.getNodeId(node)));
+        };
+        NodeMap.prototype.forEach = function (cb) {
+            this.map.forEach(function (_a) {
+                var node = _a.node, value = _a.value;
+                return cb(value, node);
+            });
+        };
+        return NodeMap;
+    }());
+    ts.NodeMap = NodeMap;
+    function rangeOfNode(node) {
+        return { pos: getTokenPosOfNode(node), end: node.end };
+    }
+    ts.rangeOfNode = rangeOfNode;
+    function rangeOfTypeParameters(typeParameters) {
+        return { pos: typeParameters.pos - 1, end: typeParameters.end + 1 };
+    }
+    ts.rangeOfTypeParameters = rangeOfTypeParameters;
+    function skipTypeChecking(sourceFile, options, host) {
+        return (options.skipLibCheck && sourceFile.isDeclarationFile ||
+            options.skipDefaultLibCheck && sourceFile.hasNoDefaultLib) ||
+            host.isSourceOfProjectReferenceRedirect(sourceFile.fileName);
+    }
+    ts.skipTypeChecking = skipTypeChecking;
+    function isJsonEqual(a, b) {
+        return a === b || typeof a === "object" && a !== null && typeof b === "object" && b !== null && ts.equalOwnProperties(a, b, isJsonEqual);
+    }
+    ts.isJsonEqual = isJsonEqual;
+    function getOrUpdate(map, key, getDefault) {
+        var got = map.get(key);
+        if (got === undefined) {
+            var value = getDefault();
+            map.set(key, value);
+            return value;
+        }
+        else {
+            return got;
+        }
+    }
+    ts.getOrUpdate = getOrUpdate;
+    function parsePseudoBigInt(stringValue) {
+        var log2Base;
+        switch (stringValue.charCodeAt(1)) {
+            case 98:
+            case 66:
+                log2Base = 1;
+                break;
+            case 111:
+            case 79:
+                log2Base = 3;
+                break;
+            case 120:
+            case 88:
+                log2Base = 4;
+                break;
+            default:
+                var nIndex = stringValue.length - 1;
+                var nonZeroStart = 0;
+                while (stringValue.charCodeAt(nonZeroStart) === 48) {
+                    nonZeroStart++;
+                }
+                return stringValue.slice(nonZeroStart, nIndex) || "0";
+        }
+        var startIndex = 2, endIndex = stringValue.length - 1;
+        var bitsNeeded = (endIndex - startIndex) * log2Base;
+        var segments = new Uint16Array((bitsNeeded >>> 4) + (bitsNeeded & 15 ? 1 : 0));
+        for (var i = endIndex - 1, bitOffset = 0; i >= startIndex; i--, bitOffset += log2Base) {
+            var segment = bitOffset >>> 4;
+            var digitChar = stringValue.charCodeAt(i);
+            var digit = digitChar <= 57
+                ? digitChar - 48
+                : 10 + digitChar -
+                    (digitChar <= 70 ? 65 : 97);
+            var shiftedDigit = digit << (bitOffset & 15);
+            segments[segment] |= shiftedDigit;
+            var residual = shiftedDigit >>> 16;
+            if (residual)
+                segments[segment + 1] |= residual;
+        }
+        var base10Value = "";
+        var firstNonzeroSegment = segments.length - 1;
+        var segmentsRemaining = true;
+        while (segmentsRemaining) {
+            var mod10 = 0;
+            segmentsRemaining = false;
+            for (var segment = firstNonzeroSegment; segment >= 0; segment--) {
+                var newSegment = mod10 << 16 | segments[segment];
+                var segmentValue = (newSegment / 10) | 0;
+                segments[segment] = segmentValue;
+                mod10 = newSegment - segmentValue * 10;
+                if (segmentValue && !segmentsRemaining) {
+                    firstNonzeroSegment = segment;
+                    segmentsRemaining = true;
+                }
+            }
+            base10Value = mod10 + base10Value;
+        }
+        return base10Value;
+    }
+    ts.parsePseudoBigInt = parsePseudoBigInt;
+    function pseudoBigIntToString(_a) {
+        var negative = _a.negative, base10Value = _a.base10Value;
+        return (negative && base10Value !== "0" ? "-" : "") + base10Value;
+    }
+    ts.pseudoBigIntToString = pseudoBigIntToString;
+    function isValidTypeOnlyAliasUseSite(useSite) {
+        return !!(useSite.flags & 8388608)
+            || isPartOfTypeQuery(useSite)
+            || isIdentifierInNonEmittingHeritageClause(useSite)
+            || isPartOfPossiblyValidTypeOrAbstractComputedPropertyName(useSite)
+            || !isExpressionNode(useSite);
+    }
+    ts.isValidTypeOnlyAliasUseSite = isValidTypeOnlyAliasUseSite;
+    function typeOnlyDeclarationIsExport(typeOnlyDeclaration) {
+        return typeOnlyDeclaration.kind === 263;
+    }
+    ts.typeOnlyDeclarationIsExport = typeOnlyDeclarationIsExport;
+    function isPartOfPossiblyValidTypeOrAbstractComputedPropertyName(node) {
+        while (node.kind === 75 || node.kind === 194) {
+            node = node.parent;
+        }
+        if (node.kind !== 154) {
+            return false;
+        }
+        if (hasModifier(node.parent, 128)) {
+            return true;
+        }
+        var containerKind = node.parent.parent.kind;
+        return containerKind === 246 || containerKind === 173;
+    }
+    function isIdentifierInNonEmittingHeritageClause(node) {
+        if (node.kind !== 75)
+            return false;
+        var heritageClause = findAncestor(node.parent, function (parent) {
+            switch (parent.kind) {
+                case 279:
+                    return true;
+                case 194:
+                case 216:
+                    return false;
+                default:
+                    return "quit";
+            }
+        });
+        return (heritageClause === null || heritageClause === void 0 ? void 0 : heritageClause.token) === 113 || (heritageClause === null || heritageClause === void 0 ? void 0 : heritageClause.parent.kind) === 246;
+    }
+    function isIdentifierTypeReference(node) {
+        return ts.isTypeReferenceNode(node) && ts.isIdentifier(node.typeName);
+    }
+    ts.isIdentifierTypeReference = isIdentifierTypeReference;
+    function arrayIsHomogeneous(array, comparer) {
+        if (comparer === void 0) { comparer = ts.equateValues; }
+        if (array.length < 2)
+            return true;
+        var first = array[0];
+        for (var i = 1, length_1 = array.length; i < length_1; i++) {
+            var target = array[i];
+            if (!comparer(first, target))
+                return false;
+        }
+        return true;
+    }
+    ts.arrayIsHomogeneous = arrayIsHomogeneous;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var NodeConstructor;
+    var TokenConstructor;
+    var IdentifierConstructor;
+    var PrivateIdentifierConstructor;
+    var SourceFileConstructor;
+    function createNode(kind, pos, end) {
+        if (kind === 290) {
+            return new (SourceFileConstructor || (SourceFileConstructor = ts.objectAllocator.getSourceFileConstructor()))(kind, pos, end);
+        }
+        else if (kind === 75) {
+            return new (IdentifierConstructor || (IdentifierConstructor = ts.objectAllocator.getIdentifierConstructor()))(kind, pos, end);
+        }
+        else if (kind === 76) {
+            return new (PrivateIdentifierConstructor || (PrivateIdentifierConstructor = ts.objectAllocator.getPrivateIdentifierConstructor()))(kind, pos, end);
+        }
+        else if (!ts.isNodeKind(kind)) {
+            return new (TokenConstructor || (TokenConstructor = ts.objectAllocator.getTokenConstructor()))(kind, pos, end);
+        }
+        else {
+            return new (NodeConstructor || (NodeConstructor = ts.objectAllocator.getNodeConstructor()))(kind, pos, end);
+        }
+    }
+    ts.createNode = createNode;
+    function visitNode(cbNode, node) {
+        return node && cbNode(node);
+    }
+    function visitNodes(cbNode, cbNodes, nodes) {
+        if (nodes) {
+            if (cbNodes) {
+                return cbNodes(nodes);
+            }
+            for (var _i = 0, nodes_1 = nodes; _i < nodes_1.length; _i++) {
+                var node = nodes_1[_i];
+                var result = cbNode(node);
+                if (result) {
+                    return result;
+                }
+            }
+        }
+    }
+    function isJSDocLikeText(text, start) {
+        return text.charCodeAt(start + 1) === 42 &&
+            text.charCodeAt(start + 2) === 42 &&
+            text.charCodeAt(start + 3) !== 47;
+    }
+    ts.isJSDocLikeText = isJSDocLikeText;
+    function forEachChild(node, cbNode, cbNodes) {
+        if (!node || node.kind <= 152) {
+            return;
+        }
+        switch (node.kind) {
+            case 153:
+                return visitNode(cbNode, node.left) ||
+                    visitNode(cbNode, node.right);
+            case 155:
+                return visitNode(cbNode, node.name) ||
+                    visitNode(cbNode, node.constraint) ||
+                    visitNode(cbNode, node.default) ||
+                    visitNode(cbNode, node.expression);
+            case 282:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.name) ||
+                    visitNode(cbNode, node.questionToken) ||
+                    visitNode(cbNode, node.exclamationToken) ||
+                    visitNode(cbNode, node.equalsToken) ||
+                    visitNode(cbNode, node.objectAssignmentInitializer);
+            case 283:
+                return visitNode(cbNode, node.expression);
+            case 156:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.dotDotDotToken) ||
+                    visitNode(cbNode, node.name) ||
+                    visitNode(cbNode, node.questionToken) ||
+                    visitNode(cbNode, node.type) ||
+                    visitNode(cbNode, node.initializer);
+            case 159:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.name) ||
+                    visitNode(cbNode, node.questionToken) ||
+                    visitNode(cbNode, node.exclamationToken) ||
+                    visitNode(cbNode, node.type) ||
+                    visitNode(cbNode, node.initializer);
+            case 158:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.name) ||
+                    visitNode(cbNode, node.questionToken) ||
+                    visitNode(cbNode, node.type) ||
+                    visitNode(cbNode, node.initializer);
+            case 281:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.name) ||
+                    visitNode(cbNode, node.questionToken) ||
+                    visitNode(cbNode, node.initializer);
+            case 242:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.name) ||
+                    visitNode(cbNode, node.exclamationToken) ||
+                    visitNode(cbNode, node.type) ||
+                    visitNode(cbNode, node.initializer);
+            case 191:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.dotDotDotToken) ||
+                    visitNode(cbNode, node.propertyName) ||
+                    visitNode(cbNode, node.name) ||
+                    visitNode(cbNode, node.initializer);
+            case 170:
+            case 171:
+            case 165:
+            case 166:
+            case 167:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNodes(cbNode, cbNodes, node.typeParameters) ||
+                    visitNodes(cbNode, cbNodes, node.parameters) ||
+                    visitNode(cbNode, node.type);
+            case 161:
+            case 160:
+            case 162:
+            case 163:
+            case 164:
+            case 201:
+            case 244:
+            case 202:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.asteriskToken) ||
+                    visitNode(cbNode, node.name) ||
+                    visitNode(cbNode, node.questionToken) ||
+                    visitNode(cbNode, node.exclamationToken) ||
+                    visitNodes(cbNode, cbNodes, node.typeParameters) ||
+                    visitNodes(cbNode, cbNodes, node.parameters) ||
+                    visitNode(cbNode, node.type) ||
+                    visitNode(cbNode, node.equalsGreaterThanToken) ||
+                    visitNode(cbNode, node.body);
+            case 169:
+                return visitNode(cbNode, node.typeName) ||
+                    visitNodes(cbNode, cbNodes, node.typeArguments);
+            case 168:
+                return visitNode(cbNode, node.assertsModifier) ||
+                    visitNode(cbNode, node.parameterName) ||
+                    visitNode(cbNode, node.type);
+            case 172:
+                return visitNode(cbNode, node.exprName);
+            case 173:
+                return visitNodes(cbNode, cbNodes, node.members);
+            case 174:
+                return visitNode(cbNode, node.elementType);
+            case 175:
+                return visitNodes(cbNode, cbNodes, node.elementTypes);
+            case 178:
+            case 179:
+                return visitNodes(cbNode, cbNodes, node.types);
+            case 180:
+                return visitNode(cbNode, node.checkType) ||
+                    visitNode(cbNode, node.extendsType) ||
+                    visitNode(cbNode, node.trueType) ||
+                    visitNode(cbNode, node.falseType);
+            case 181:
+                return visitNode(cbNode, node.typeParameter);
+            case 188:
+                return visitNode(cbNode, node.argument) ||
+                    visitNode(cbNode, node.qualifier) ||
+                    visitNodes(cbNode, cbNodes, node.typeArguments);
+            case 182:
+            case 184:
+                return visitNode(cbNode, node.type);
+            case 185:
+                return visitNode(cbNode, node.objectType) ||
+                    visitNode(cbNode, node.indexType);
+            case 186:
+                return visitNode(cbNode, node.readonlyToken) ||
+                    visitNode(cbNode, node.typeParameter) ||
+                    visitNode(cbNode, node.questionToken) ||
+                    visitNode(cbNode, node.type);
+            case 187:
+                return visitNode(cbNode, node.literal);
+            case 189:
+            case 190:
+                return visitNodes(cbNode, cbNodes, node.elements);
+            case 192:
+                return visitNodes(cbNode, cbNodes, node.elements);
+            case 193:
+                return visitNodes(cbNode, cbNodes, node.properties);
+            case 194:
+                return visitNode(cbNode, node.expression) ||
+                    visitNode(cbNode, node.questionDotToken) ||
+                    visitNode(cbNode, node.name);
+            case 195:
+                return visitNode(cbNode, node.expression) ||
+                    visitNode(cbNode, node.questionDotToken) ||
+                    visitNode(cbNode, node.argumentExpression);
+            case 196:
+            case 197:
+                return visitNode(cbNode, node.expression) ||
+                    visitNode(cbNode, node.questionDotToken) ||
+                    visitNodes(cbNode, cbNodes, node.typeArguments) ||
+                    visitNodes(cbNode, cbNodes, node.arguments);
+            case 198:
+                return visitNode(cbNode, node.tag) ||
+                    visitNode(cbNode, node.questionDotToken) ||
+                    visitNodes(cbNode, cbNodes, node.typeArguments) ||
+                    visitNode(cbNode, node.template);
+            case 199:
+                return visitNode(cbNode, node.type) ||
+                    visitNode(cbNode, node.expression);
+            case 200:
+                return visitNode(cbNode, node.expression);
+            case 203:
+                return visitNode(cbNode, node.expression);
+            case 204:
+                return visitNode(cbNode, node.expression);
+            case 205:
+                return visitNode(cbNode, node.expression);
+            case 207:
+                return visitNode(cbNode, node.operand);
+            case 212:
+                return visitNode(cbNode, node.asteriskToken) ||
+                    visitNode(cbNode, node.expression);
+            case 206:
+                return visitNode(cbNode, node.expression);
+            case 208:
+                return visitNode(cbNode, node.operand);
+            case 209:
+                return visitNode(cbNode, node.left) ||
+                    visitNode(cbNode, node.operatorToken) ||
+                    visitNode(cbNode, node.right);
+            case 217:
+                return visitNode(cbNode, node.expression) ||
+                    visitNode(cbNode, node.type);
+            case 218:
+                return visitNode(cbNode, node.expression);
+            case 219:
+                return visitNode(cbNode, node.name);
+            case 210:
+                return visitNode(cbNode, node.condition) ||
+                    visitNode(cbNode, node.questionToken) ||
+                    visitNode(cbNode, node.whenTrue) ||
+                    visitNode(cbNode, node.colonToken) ||
+                    visitNode(cbNode, node.whenFalse);
+            case 213:
+                return visitNode(cbNode, node.expression);
+            case 223:
+            case 250:
+                return visitNodes(cbNode, cbNodes, node.statements);
+            case 290:
+                return visitNodes(cbNode, cbNodes, node.statements) ||
+                    visitNode(cbNode, node.endOfFileToken);
+            case 225:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.declarationList);
+            case 243:
+                return visitNodes(cbNode, cbNodes, node.declarations);
+            case 226:
+                return visitNode(cbNode, node.expression);
+            case 227:
+                return visitNode(cbNode, node.expression) ||
+                    visitNode(cbNode, node.thenStatement) ||
+                    visitNode(cbNode, node.elseStatement);
+            case 228:
+                return visitNode(cbNode, node.statement) ||
+                    visitNode(cbNode, node.expression);
+            case 229:
+                return visitNode(cbNode, node.expression) ||
+                    visitNode(cbNode, node.statement);
+            case 230:
+                return visitNode(cbNode, node.initializer) ||
+                    visitNode(cbNode, node.condition) ||
+                    visitNode(cbNode, node.incrementor) ||
+                    visitNode(cbNode, node.statement);
+            case 231:
+                return visitNode(cbNode, node.initializer) ||
+                    visitNode(cbNode, node.expression) ||
+                    visitNode(cbNode, node.statement);
+            case 232:
+                return visitNode(cbNode, node.awaitModifier) ||
+                    visitNode(cbNode, node.initializer) ||
+                    visitNode(cbNode, node.expression) ||
+                    visitNode(cbNode, node.statement);
+            case 233:
+            case 234:
+                return visitNode(cbNode, node.label);
+            case 235:
+                return visitNode(cbNode, node.expression);
+            case 236:
+                return visitNode(cbNode, node.expression) ||
+                    visitNode(cbNode, node.statement);
+            case 237:
+                return visitNode(cbNode, node.expression) ||
+                    visitNode(cbNode, node.caseBlock);
+            case 251:
+                return visitNodes(cbNode, cbNodes, node.clauses);
+            case 277:
+                return visitNode(cbNode, node.expression) ||
+                    visitNodes(cbNode, cbNodes, node.statements);
+            case 278:
+                return visitNodes(cbNode, cbNodes, node.statements);
+            case 238:
+                return visitNode(cbNode, node.label) ||
+                    visitNode(cbNode, node.statement);
+            case 239:
+                return visitNode(cbNode, node.expression);
+            case 240:
+                return visitNode(cbNode, node.tryBlock) ||
+                    visitNode(cbNode, node.catchClause) ||
+                    visitNode(cbNode, node.finallyBlock);
+            case 280:
+                return visitNode(cbNode, node.variableDeclaration) ||
+                    visitNode(cbNode, node.block);
+            case 157:
+                return visitNode(cbNode, node.expression);
+            case 245:
+            case 214:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.name) ||
+                    visitNodes(cbNode, cbNodes, node.typeParameters) ||
+                    visitNodes(cbNode, cbNodes, node.heritageClauses) ||
+                    visitNodes(cbNode, cbNodes, node.members);
+            case 246:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.name) ||
+                    visitNodes(cbNode, cbNodes, node.typeParameters) ||
+                    visitNodes(cbNode, cbNodes, node.heritageClauses) ||
+                    visitNodes(cbNode, cbNodes, node.members);
+            case 247:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.name) ||
+                    visitNodes(cbNode, cbNodes, node.typeParameters) ||
+                    visitNode(cbNode, node.type);
+            case 248:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.name) ||
+                    visitNodes(cbNode, cbNodes, node.members);
+            case 284:
+                return visitNode(cbNode, node.name) ||
+                    visitNode(cbNode, node.initializer);
+            case 249:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.name) ||
+                    visitNode(cbNode, node.body);
+            case 253:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.name) ||
+                    visitNode(cbNode, node.moduleReference);
+            case 254:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.importClause) ||
+                    visitNode(cbNode, node.moduleSpecifier);
+            case 255:
+                return visitNode(cbNode, node.name) ||
+                    visitNode(cbNode, node.namedBindings);
+            case 252:
+                return visitNode(cbNode, node.name);
+            case 256:
+                return visitNode(cbNode, node.name);
+            case 262:
+                return visitNode(cbNode, node.name);
+            case 257:
+            case 261:
+                return visitNodes(cbNode, cbNodes, node.elements);
+            case 260:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.exportClause) ||
+                    visitNode(cbNode, node.moduleSpecifier);
+            case 258:
+            case 263:
+                return visitNode(cbNode, node.propertyName) ||
+                    visitNode(cbNode, node.name);
+            case 259:
+                return visitNodes(cbNode, cbNodes, node.decorators) ||
+                    visitNodes(cbNode, cbNodes, node.modifiers) ||
+                    visitNode(cbNode, node.expression);
+            case 211:
+                return visitNode(cbNode, node.head) || visitNodes(cbNode, cbNodes, node.templateSpans);
+            case 221:
+                return visitNode(cbNode, node.expression) || visitNode(cbNode, node.literal);
+            case 154:
+                return visitNode(cbNode, node.expression);
+            case 279:
+                return visitNodes(cbNode, cbNodes, node.types);
+            case 216:
+                return visitNode(cbNode, node.expression) ||
+                    visitNodes(cbNode, cbNodes, node.typeArguments);
+            case 265:
+                return visitNode(cbNode, node.expression);
+            case 264:
+                return visitNodes(cbNode, cbNodes, node.decorators);
+            case 327:
+                return visitNodes(cbNode, cbNodes, node.elements);
+            case 266:
+                return visitNode(cbNode, node.openingElement) ||
+                    visitNodes(cbNode, cbNodes, node.children) ||
+                    visitNode(cbNode, node.closingElement);
+            case 270:
+                return visitNode(cbNode, node.openingFragment) ||
+                    visitNodes(cbNode, cbNodes, node.children) ||
+                    visitNode(cbNode, node.closingFragment);
+            case 267:
+            case 268:
+                return visitNode(cbNode, node.tagName) ||
+                    visitNodes(cbNode, cbNodes, node.typeArguments) ||
+                    visitNode(cbNode, node.attributes);
+            case 274:
+                return visitNodes(cbNode, cbNodes, node.properties);
+            case 273:
+                return visitNode(cbNode, node.name) ||
+                    visitNode(cbNode, node.initializer);
+            case 275:
+                return visitNode(cbNode, node.expression);
+            case 276:
+                return visitNode(cbNode, node.dotDotDotToken) ||
+                    visitNode(cbNode, node.expression);
+            case 269:
+                return visitNode(cbNode, node.tagName);
+            case 176:
+            case 177:
+            case 294:
+            case 298:
+            case 297:
+            case 299:
+            case 301:
+                return visitNode(cbNode, node.type);
+            case 300:
+                return visitNodes(cbNode, cbNodes, node.parameters) ||
+                    visitNode(cbNode, node.type);
+            case 303:
+                return visitNodes(cbNode, cbNodes, node.tags);
+            case 317:
+            case 323:
+                return visitNode(cbNode, node.tagName) ||
+                    (node.isNameFirst
+                        ? visitNode(cbNode, node.name) ||
+                            visitNode(cbNode, node.typeExpression)
+                        : visitNode(cbNode, node.typeExpression) ||
+                            visitNode(cbNode, node.name));
+            case 309:
+                return visitNode(cbNode, node.tagName);
+            case 308:
+                return visitNode(cbNode, node.tagName) ||
+                    visitNode(cbNode, node.class);
+            case 307:
+                return visitNode(cbNode, node.tagName) ||
+                    visitNode(cbNode, node.class);
+            case 321:
+                return visitNode(cbNode, node.tagName) ||
+                    visitNode(cbNode, node.constraint) ||
+                    visitNodes(cbNode, cbNodes, node.typeParameters);
+            case 322:
+                return visitNode(cbNode, node.tagName) ||
+                    (node.typeExpression &&
+                        node.typeExpression.kind === 294
+                        ? visitNode(cbNode, node.typeExpression) ||
+                            visitNode(cbNode, node.fullName)
+                        : visitNode(cbNode, node.fullName) ||
+                            visitNode(cbNode, node.typeExpression));
+            case 315:
+                return visitNode(cbNode, node.tagName) ||
+                    visitNode(cbNode, node.fullName) ||
+                    visitNode(cbNode, node.typeExpression);
+            case 318:
+            case 320:
+            case 319:
+            case 316:
+                return visitNode(cbNode, node.tagName) ||
+                    visitNode(cbNode, node.typeExpression);
+            case 305:
+                return ts.forEach(node.typeParameters, cbNode) ||
+                    ts.forEach(node.parameters, cbNode) ||
+                    visitNode(cbNode, node.type);
+            case 304:
+                return ts.forEach(node.jsDocPropertyTags, cbNode);
+            case 306:
+            case 310:
+            case 311:
+            case 312:
+            case 313:
+            case 314:
+                return visitNode(cbNode, node.tagName);
+            case 326:
+                return visitNode(cbNode, node.expression);
+        }
+    }
+    ts.forEachChild = forEachChild;
+    function forEachChildRecursively(rootNode, cbNode, cbNodes) {
+        var stack = [rootNode];
+        while (stack.length) {
+            var parent = stack.pop();
+            var res = visitAllPossibleChildren(parent, gatherPossibleChildren(parent));
+            if (res) {
+                return res;
+            }
+        }
+        return;
+        function gatherPossibleChildren(node) {
+            var children = [];
+            forEachChild(node, addWorkItem, addWorkItem);
+            return children;
+            function addWorkItem(n) {
+                children.unshift(n);
+            }
+        }
+        function visitAllPossibleChildren(parent, children) {
+            for (var _i = 0, children_1 = children; _i < children_1.length; _i++) {
+                var child = children_1[_i];
+                if (ts.isArray(child)) {
+                    if (cbNodes) {
+                        var res = cbNodes(child, parent);
+                        if (res) {
+                            if (res === "skip")
+                                continue;
+                            return res;
+                        }
+                    }
+                    for (var i = child.length - 1; i >= 0; i--) {
+                        var realChild = child[i];
+                        var res = cbNode(realChild, parent);
+                        if (res) {
+                            if (res === "skip")
+                                continue;
+                            return res;
+                        }
+                        stack.push(realChild);
+                    }
+                }
+                else {
+                    stack.push(child);
+                    var res = cbNode(child, parent);
+                    if (res) {
+                        if (res === "skip")
+                            continue;
+                        return res;
+                    }
+                }
+            }
+        }
+    }
+    ts.forEachChildRecursively = forEachChildRecursively;
+    function createSourceFile(fileName, sourceText, languageVersion, setParentNodes, scriptKind) {
+        if (setParentNodes === void 0) { setParentNodes = false; }
+        ts.performance.mark("beforeParse");
+        var result;
+        ts.perfLogger.logStartParseSourceFile(fileName);
+        if (languageVersion === 100) {
+            result = Parser.parseSourceFile(fileName, sourceText, languageVersion, undefined, setParentNodes, 6);
+        }
+        else {
+            result = Parser.parseSourceFile(fileName, sourceText, languageVersion, undefined, setParentNodes, scriptKind);
+        }
+        ts.perfLogger.logStopParseSourceFile();
+        ts.performance.mark("afterParse");
+        ts.performance.measure("Parse", "beforeParse", "afterParse");
+        return result;
+    }
+    ts.createSourceFile = createSourceFile;
+    function parseIsolatedEntityName(text, languageVersion) {
+        return Parser.parseIsolatedEntityName(text, languageVersion);
+    }
+    ts.parseIsolatedEntityName = parseIsolatedEntityName;
+    function parseJsonText(fileName, sourceText) {
+        return Parser.parseJsonText(fileName, sourceText);
+    }
+    ts.parseJsonText = parseJsonText;
+    function isExternalModule(file) {
+        return file.externalModuleIndicator !== undefined;
+    }
+    ts.isExternalModule = isExternalModule;
+    function updateSourceFile(sourceFile, newText, textChangeRange, aggressiveChecks) {
+        if (aggressiveChecks === void 0) { aggressiveChecks = false; }
+        var newSourceFile = IncrementalParser.updateSourceFile(sourceFile, newText, textChangeRange, aggressiveChecks);
+        newSourceFile.flags |= (sourceFile.flags & 3145728);
+        return newSourceFile;
+    }
+    ts.updateSourceFile = updateSourceFile;
+    function parseIsolatedJSDocComment(content, start, length) {
+        var result = Parser.JSDocParser.parseIsolatedJSDocComment(content, start, length);
+        if (result && result.jsDoc) {
+            Parser.fixupParentReferences(result.jsDoc);
+        }
+        return result;
+    }
+    ts.parseIsolatedJSDocComment = parseIsolatedJSDocComment;
+    function parseJSDocTypeExpressionForTests(content, start, length) {
+        return Parser.JSDocParser.parseJSDocTypeExpressionForTests(content, start, length);
+    }
+    ts.parseJSDocTypeExpressionForTests = parseJSDocTypeExpressionForTests;
+    var Parser;
+    (function (Parser) {
+        var scanner = ts.createScanner(99, true);
+        var disallowInAndDecoratorContext = 4096 | 16384;
+        var NodeConstructor;
+        var TokenConstructor;
+        var IdentifierConstructor;
+        var PrivateIdentifierConstructor;
+        var SourceFileConstructor;
+        var sourceFile;
+        var parseDiagnostics;
+        var syntaxCursor;
+        var currentToken;
+        var sourceText;
+        var nodeCount;
+        var identifiers;
+        var privateIdentifiers;
+        var identifierCount;
+        var parsingContext;
+        var notParenthesizedArrow;
+        var contextFlags;
+        var parseErrorBeforeNextFinishedNode = false;
+        function parseSourceFile(fileName, sourceText, languageVersion, syntaxCursor, setParentNodes, scriptKind) {
+            if (setParentNodes === void 0) { setParentNodes = false; }
+            scriptKind = ts.ensureScriptKind(fileName, scriptKind);
+            if (scriptKind === 6) {
+                var result_2 = parseJsonText(fileName, sourceText, languageVersion, syntaxCursor, setParentNodes);
+                ts.convertToObjectWorker(result_2, result_2.parseDiagnostics, false, undefined, undefined);
+                result_2.referencedFiles = ts.emptyArray;
+                result_2.typeReferenceDirectives = ts.emptyArray;
+                result_2.libReferenceDirectives = ts.emptyArray;
+                result_2.amdDependencies = ts.emptyArray;
+                result_2.hasNoDefaultLib = false;
+                result_2.pragmas = ts.emptyMap;
+                return result_2;
+            }
+            initializeState(sourceText, languageVersion, syntaxCursor, scriptKind);
+            var result = parseSourceFileWorker(fileName, languageVersion, setParentNodes, scriptKind);
+            clearState();
+            return result;
+        }
+        Parser.parseSourceFile = parseSourceFile;
+        function parseIsolatedEntityName(content, languageVersion) {
+            initializeState(content, languageVersion, undefined, 1);
+            nextToken();
+            var entityName = parseEntityName(true);
+            var isInvalid = token() === 1 && !parseDiagnostics.length;
+            clearState();
+            return isInvalid ? entityName : undefined;
+        }
+        Parser.parseIsolatedEntityName = parseIsolatedEntityName;
+        function parseJsonText(fileName, sourceText, languageVersion, syntaxCursor, setParentNodes) {
+            if (languageVersion === void 0) { languageVersion = 2; }
+            initializeState(sourceText, languageVersion, syntaxCursor, 6);
+            sourceFile = createSourceFile(fileName, 2, 6, false);
+            sourceFile.flags = contextFlags;
+            nextToken();
+            var pos = getNodePos();
+            if (token() === 1) {
+                sourceFile.statements = createNodeArray([], pos, pos);
+                sourceFile.endOfFileToken = parseTokenNode();
+            }
+            else {
+                var statement = createNode(226);
+                switch (token()) {
+                    case 22:
+                        statement.expression = parseArrayLiteralExpression();
+                        break;
+                    case 106:
+                    case 91:
+                    case 100:
+                        statement.expression = parseTokenNode();
+                        break;
+                    case 40:
+                        if (lookAhead(function () { return nextToken() === 8 && nextToken() !== 58; })) {
+                            statement.expression = parsePrefixUnaryExpression();
+                        }
+                        else {
+                            statement.expression = parseObjectLiteralExpression();
+                        }
+                        break;
+                    case 8:
+                    case 10:
+                        if (lookAhead(function () { return nextToken() !== 58; })) {
+                            statement.expression = parseLiteralNode();
+                            break;
+                        }
+                    default:
+                        statement.expression = parseObjectLiteralExpression();
+                        break;
+                }
+                finishNode(statement);
+                sourceFile.statements = createNodeArray([statement], pos);
+                sourceFile.endOfFileToken = parseExpectedToken(1, ts.Diagnostics.Unexpected_token);
+            }
+            if (setParentNodes) {
+                fixupParentReferences(sourceFile);
+            }
+            sourceFile.nodeCount = nodeCount;
+            sourceFile.identifierCount = identifierCount;
+            sourceFile.identifiers = identifiers;
+            sourceFile.parseDiagnostics = parseDiagnostics;
+            var result = sourceFile;
+            clearState();
+            return result;
+        }
+        Parser.parseJsonText = parseJsonText;
+        function getLanguageVariant(scriptKind) {
+            return scriptKind === 4 || scriptKind === 2 || scriptKind === 1 || scriptKind === 6 ? 1 : 0;
+        }
+        function initializeState(_sourceText, languageVersion, _syntaxCursor, scriptKind) {
+            NodeConstructor = ts.objectAllocator.getNodeConstructor();
+            TokenConstructor = ts.objectAllocator.getTokenConstructor();
+            IdentifierConstructor = ts.objectAllocator.getIdentifierConstructor();
+            PrivateIdentifierConstructor = ts.objectAllocator.getPrivateIdentifierConstructor();
+            SourceFileConstructor = ts.objectAllocator.getSourceFileConstructor();
+            sourceText = _sourceText;
+            syntaxCursor = _syntaxCursor;
+            parseDiagnostics = [];
+            parsingContext = 0;
+            identifiers = ts.createMap();
+            privateIdentifiers = ts.createMap();
+            identifierCount = 0;
+            nodeCount = 0;
+            switch (scriptKind) {
+                case 1:
+                case 2:
+                    contextFlags = 131072;
+                    break;
+                case 6:
+                    contextFlags = 131072 | 33554432;
+                    break;
+                default:
+                    contextFlags = 0;
+                    break;
+            }
+            parseErrorBeforeNextFinishedNode = false;
+            scanner.setText(sourceText);
+            scanner.setOnError(scanError);
+            scanner.setScriptTarget(languageVersion);
+            scanner.setLanguageVariant(getLanguageVariant(scriptKind));
+        }
+        function clearState() {
+            scanner.clearCommentDirectives();
+            scanner.setText("");
+            scanner.setOnError(undefined);
+            parseDiagnostics = undefined;
+            sourceFile = undefined;
+            identifiers = undefined;
+            syntaxCursor = undefined;
+            sourceText = undefined;
+            notParenthesizedArrow = undefined;
+        }
+        function parseSourceFileWorker(fileName, languageVersion, setParentNodes, scriptKind) {
+            var isDeclarationFile = isDeclarationFileName(fileName);
+            if (isDeclarationFile) {
+                contextFlags |= 8388608;
+            }
+            sourceFile = createSourceFile(fileName, languageVersion, scriptKind, isDeclarationFile);
+            sourceFile.flags = contextFlags;
+            nextToken();
+            processCommentPragmas(sourceFile, sourceText);
+            processPragmasIntoFields(sourceFile, reportPragmaDiagnostic);
+            sourceFile.statements = parseList(0, parseStatement);
+            ts.Debug.assert(token() === 1);
+            sourceFile.endOfFileToken = addJSDocComment(parseTokenNode());
+            setExternalModuleIndicator(sourceFile);
+            sourceFile.commentDirectives = scanner.getCommentDirectives();
+            sourceFile.nodeCount = nodeCount;
+            sourceFile.identifierCount = identifierCount;
+            sourceFile.identifiers = identifiers;
+            sourceFile.parseDiagnostics = parseDiagnostics;
+            if (setParentNodes) {
+                fixupParentReferences(sourceFile);
+            }
+            return sourceFile;
+            function reportPragmaDiagnostic(pos, end, diagnostic) {
+                parseDiagnostics.push(ts.createFileDiagnostic(sourceFile, pos, end, diagnostic));
+            }
+        }
+        function addJSDocComment(node) {
+            ts.Debug.assert(!node.jsDoc);
+            var jsDoc = ts.mapDefined(ts.getJSDocCommentRanges(node, sourceFile.text), function (comment) { return JSDocParser.parseJSDocComment(node, comment.pos, comment.end - comment.pos); });
+            if (jsDoc.length)
+                node.jsDoc = jsDoc;
+            return node;
+        }
+        function fixupParentReferences(rootNode) {
+            forEachChildRecursively(rootNode, bindParentToChild);
+            function bindParentToChild(child, parent) {
+                child.parent = parent;
+                if (ts.hasJSDocNodes(child)) {
+                    for (var _i = 0, _a = child.jsDoc; _i < _a.length; _i++) {
+                        var doc = _a[_i];
+                        bindParentToChild(doc, child);
+                        forEachChildRecursively(doc, bindParentToChild);
+                    }
+                }
+            }
+        }
+        Parser.fixupParentReferences = fixupParentReferences;
+        function createSourceFile(fileName, languageVersion, scriptKind, isDeclarationFile) {
+            var sourceFile = new SourceFileConstructor(290, 0, sourceText.length);
+            nodeCount++;
+            sourceFile.text = sourceText;
+            sourceFile.bindDiagnostics = [];
+            sourceFile.bindSuggestionDiagnostics = undefined;
+            sourceFile.languageVersion = languageVersion;
+            sourceFile.fileName = ts.normalizePath(fileName);
+            sourceFile.languageVariant = getLanguageVariant(scriptKind);
+            sourceFile.isDeclarationFile = isDeclarationFile;
+            sourceFile.scriptKind = scriptKind;
+            return sourceFile;
+        }
+        function setContextFlag(val, flag) {
+            if (val) {
+                contextFlags |= flag;
+            }
+            else {
+                contextFlags &= ~flag;
+            }
+        }
+        function setDisallowInContext(val) {
+            setContextFlag(val, 4096);
+        }
+        function setYieldContext(val) {
+            setContextFlag(val, 8192);
+        }
+        function setDecoratorContext(val) {
+            setContextFlag(val, 16384);
+        }
+        function setAwaitContext(val) {
+            setContextFlag(val, 32768);
+        }
+        function doOutsideOfContext(context, func) {
+            var contextFlagsToClear = context & contextFlags;
+            if (contextFlagsToClear) {
+                setContextFlag(false, contextFlagsToClear);
+                var result = func();
+                setContextFlag(true, contextFlagsToClear);
+                return result;
+            }
+            return func();
+        }
+        function doInsideOfContext(context, func) {
+            var contextFlagsToSet = context & ~contextFlags;
+            if (contextFlagsToSet) {
+                setContextFlag(true, contextFlagsToSet);
+                var result = func();
+                setContextFlag(false, contextFlagsToSet);
+                return result;
+            }
+            return func();
+        }
+        function allowInAnd(func) {
+            return doOutsideOfContext(4096, func);
+        }
+        function disallowInAnd(func) {
+            return doInsideOfContext(4096, func);
+        }
+        function doInYieldContext(func) {
+            return doInsideOfContext(8192, func);
+        }
+        function doInDecoratorContext(func) {
+            return doInsideOfContext(16384, func);
+        }
+        function doInAwaitContext(func) {
+            return doInsideOfContext(32768, func);
+        }
+        function doOutsideOfAwaitContext(func) {
+            return doOutsideOfContext(32768, func);
+        }
+        function doInYieldAndAwaitContext(func) {
+            return doInsideOfContext(8192 | 32768, func);
+        }
+        function doOutsideOfYieldAndAwaitContext(func) {
+            return doOutsideOfContext(8192 | 32768, func);
+        }
+        function inContext(flags) {
+            return (contextFlags & flags) !== 0;
+        }
+        function inYieldContext() {
+            return inContext(8192);
+        }
+        function inDisallowInContext() {
+            return inContext(4096);
+        }
+        function inDecoratorContext() {
+            return inContext(16384);
+        }
+        function inAwaitContext() {
+            return inContext(32768);
+        }
+        function parseErrorAtCurrentToken(message, arg0) {
+            parseErrorAt(scanner.getTokenPos(), scanner.getTextPos(), message, arg0);
+        }
+        function parseErrorAtPosition(start, length, message, arg0) {
+            var lastError = ts.lastOrUndefined(parseDiagnostics);
+            if (!lastError || start !== lastError.start) {
+                parseDiagnostics.push(ts.createFileDiagnostic(sourceFile, start, length, message, arg0));
+            }
+            parseErrorBeforeNextFinishedNode = true;
+        }
+        function parseErrorAt(start, end, message, arg0) {
+            parseErrorAtPosition(start, end - start, message, arg0);
+        }
+        function parseErrorAtRange(range, message, arg0) {
+            parseErrorAt(range.pos, range.end, message, arg0);
+        }
+        function scanError(message, length) {
+            parseErrorAtPosition(scanner.getTextPos(), length, message);
+        }
+        function getNodePos() {
+            return scanner.getStartPos();
+        }
+        function token() {
+            return currentToken;
+        }
+        function nextTokenWithoutCheck() {
+            return currentToken = scanner.scan();
+        }
+        function nextToken() {
+            if (ts.isKeyword(currentToken) && (scanner.hasUnicodeEscape() || scanner.hasExtendedUnicodeEscape())) {
+                parseErrorAt(scanner.getTokenPos(), scanner.getTextPos(), ts.Diagnostics.Keywords_cannot_contain_escape_characters);
+            }
+            return nextTokenWithoutCheck();
+        }
+        function nextTokenJSDoc() {
+            return currentToken = scanner.scanJsDocToken();
+        }
+        function reScanGreaterToken() {
+            return currentToken = scanner.reScanGreaterToken();
+        }
+        function reScanSlashToken() {
+            return currentToken = scanner.reScanSlashToken();
+        }
+        function reScanTemplateToken(isTaggedTemplate) {
+            return currentToken = scanner.reScanTemplateToken(isTaggedTemplate);
+        }
+        function reScanTemplateHeadOrNoSubstitutionTemplate() {
+            return currentToken = scanner.reScanTemplateHeadOrNoSubstitutionTemplate();
+        }
+        function reScanLessThanToken() {
+            return currentToken = scanner.reScanLessThanToken();
+        }
+        function scanJsxIdentifier() {
+            return currentToken = scanner.scanJsxIdentifier();
+        }
+        function scanJsxText() {
+            return currentToken = scanner.scanJsxToken();
+        }
+        function scanJsxAttributeValue() {
+            return currentToken = scanner.scanJsxAttributeValue();
+        }
+        function speculationHelper(callback, isLookAhead) {
+            var saveToken = currentToken;
+            var saveParseDiagnosticsLength = parseDiagnostics.length;
+            var saveParseErrorBeforeNextFinishedNode = parseErrorBeforeNextFinishedNode;
+            var saveContextFlags = contextFlags;
+            var result = isLookAhead
+                ? scanner.lookAhead(callback)
+                : scanner.tryScan(callback);
+            ts.Debug.assert(saveContextFlags === contextFlags);
+            if (!result || isLookAhead) {
+                currentToken = saveToken;
+                parseDiagnostics.length = saveParseDiagnosticsLength;
+                parseErrorBeforeNextFinishedNode = saveParseErrorBeforeNextFinishedNode;
+            }
+            return result;
+        }
+        function lookAhead(callback) {
+            return speculationHelper(callback, true);
+        }
+        function tryParse(callback) {
+            return speculationHelper(callback, false);
+        }
+        function isIdentifier() {
+            if (token() === 75) {
+                return true;
+            }
+            if (token() === 121 && inYieldContext()) {
+                return false;
+            }
+            if (token() === 127 && inAwaitContext()) {
+                return false;
+            }
+            return token() > 112;
+        }
+        function parseExpected(kind, diagnosticMessage, shouldAdvance) {
+            if (shouldAdvance === void 0) { shouldAdvance = true; }
+            if (token() === kind) {
+                if (shouldAdvance) {
+                    nextToken();
+                }
+                return true;
+            }
+            if (diagnosticMessage) {
+                parseErrorAtCurrentToken(diagnosticMessage);
+            }
+            else {
+                parseErrorAtCurrentToken(ts.Diagnostics._0_expected, ts.tokenToString(kind));
+            }
+            return false;
+        }
+        function parseExpectedJSDoc(kind) {
+            if (token() === kind) {
+                nextTokenJSDoc();
+                return true;
+            }
+            parseErrorAtCurrentToken(ts.Diagnostics._0_expected, ts.tokenToString(kind));
+            return false;
+        }
+        function parseOptional(t) {
+            if (token() === t) {
+                nextToken();
+                return true;
+            }
+            return false;
+        }
+        function parseOptionalToken(t) {
+            if (token() === t) {
+                return parseTokenNode();
+            }
+            return undefined;
+        }
+        function parseOptionalTokenJSDoc(t) {
+            if (token() === t) {
+                return parseTokenNodeJSDoc();
+            }
+            return undefined;
+        }
+        function parseExpectedToken(t, diagnosticMessage, arg0) {
+            return parseOptionalToken(t) ||
+                createMissingNode(t, false, diagnosticMessage || ts.Diagnostics._0_expected, arg0 || ts.tokenToString(t));
+        }
+        function parseExpectedTokenJSDoc(t) {
+            return parseOptionalTokenJSDoc(t) ||
+                createMissingNode(t, false, ts.Diagnostics._0_expected, ts.tokenToString(t));
+        }
+        function parseTokenNode() {
+            var node = createNode(token());
+            nextToken();
+            return finishNode(node);
+        }
+        function parseTokenNodeJSDoc() {
+            var node = createNode(token());
+            nextTokenJSDoc();
+            return finishNode(node);
+        }
+        function canParseSemicolon() {
+            if (token() === 26) {
+                return true;
+            }
+            return token() === 19 || token() === 1 || scanner.hasPrecedingLineBreak();
+        }
+        function parseSemicolon() {
+            if (canParseSemicolon()) {
+                if (token() === 26) {
+                    nextToken();
+                }
+                return true;
+            }
+            else {
+                return parseExpected(26);
+            }
+        }
+        function createNode(kind, pos) {
+            nodeCount++;
+            var p = pos >= 0 ? pos : scanner.getStartPos();
+            return ts.isNodeKind(kind) || kind === 0 ? new NodeConstructor(kind, p, p) :
+                kind === 75 ? new IdentifierConstructor(kind, p, p) :
+                    kind === 76 ? new PrivateIdentifierConstructor(kind, p, p) :
+                        new TokenConstructor(kind, p, p);
+        }
+        function createNodeWithJSDoc(kind, pos) {
+            var node = createNode(kind, pos);
+            if (scanner.getTokenFlags() & 2 && (kind !== 226 || token() !== 20)) {
+                addJSDocComment(node);
+            }
+            return node;
+        }
+        function createNodeArray(elements, pos, end) {
+            var length = elements.length;
+            var array = (length >= 1 && length <= 4 ? elements.slice() : elements);
+            array.pos = pos;
+            array.end = end === undefined ? scanner.getStartPos() : end;
+            return array;
+        }
+        function finishNode(node, end) {
+            node.end = end === undefined ? scanner.getStartPos() : end;
+            if (contextFlags) {
+                node.flags |= contextFlags;
+            }
+            if (parseErrorBeforeNextFinishedNode) {
+                parseErrorBeforeNextFinishedNode = false;
+                node.flags |= 65536;
+            }
+            return node;
+        }
+        function createMissingNode(kind, reportAtCurrentPosition, diagnosticMessage, arg0) {
+            if (reportAtCurrentPosition) {
+                parseErrorAtPosition(scanner.getStartPos(), 0, diagnosticMessage, arg0);
+            }
+            else if (diagnosticMessage) {
+                parseErrorAtCurrentToken(diagnosticMessage, arg0);
+            }
+            var result = createNode(kind);
+            if (kind === 75) {
+                result.escapedText = "";
+            }
+            else if (ts.isLiteralKind(kind) || ts.isTemplateLiteralKind(kind)) {
+                result.text = "";
+            }
+            return finishNode(result);
+        }
+        function internIdentifier(text) {
+            var identifier = identifiers.get(text);
+            if (identifier === undefined) {
+                identifiers.set(text, identifier = text);
+            }
+            return identifier;
+        }
+        function createIdentifier(isIdentifier, diagnosticMessage, privateIdentifierDiagnosticMessage) {
+            identifierCount++;
+            if (isIdentifier) {
+                var node = createNode(75);
+                if (token() !== 75) {
+                    node.originalKeywordKind = token();
+                }
+                node.escapedText = ts.escapeLeadingUnderscores(internIdentifier(scanner.getTokenValue()));
+                nextTokenWithoutCheck();
+                return finishNode(node);
+            }
+            if (token() === 76) {
+                parseErrorAtCurrentToken(privateIdentifierDiagnosticMessage || ts.Diagnostics.Private_identifiers_are_not_allowed_outside_class_bodies);
+                return createIdentifier(true);
+            }
+            var reportAtCurrentPosition = token() === 1;
+            var isReservedWord = scanner.isReservedWord();
+            var msgArg = scanner.getTokenText();
+            var defaultMessage = isReservedWord ?
+                ts.Diagnostics.Identifier_expected_0_is_a_reserved_word_that_cannot_be_used_here :
+                ts.Diagnostics.Identifier_expected;
+            return createMissingNode(75, reportAtCurrentPosition, diagnosticMessage || defaultMessage, msgArg);
+        }
+        function parseIdentifier(diagnosticMessage, privateIdentifierDiagnosticMessage) {
+            return createIdentifier(isIdentifier(), diagnosticMessage, privateIdentifierDiagnosticMessage);
+        }
+        function parseIdentifierName(diagnosticMessage) {
+            return createIdentifier(ts.tokenIsIdentifierOrKeyword(token()), diagnosticMessage);
+        }
+        function isLiteralPropertyName() {
+            return ts.tokenIsIdentifierOrKeyword(token()) ||
+                token() === 10 ||
+                token() === 8;
+        }
+        function parsePropertyNameWorker(allowComputedPropertyNames) {
+            if (token() === 10 || token() === 8) {
+                var node = parseLiteralNode();
+                node.text = internIdentifier(node.text);
+                return node;
+            }
+            if (allowComputedPropertyNames && token() === 22) {
+                return parseComputedPropertyName();
+            }
+            if (token() === 76) {
+                return parsePrivateIdentifier();
+            }
+            return parseIdentifierName();
+        }
+        function parsePropertyName() {
+            return parsePropertyNameWorker(true);
+        }
+        function parseComputedPropertyName() {
+            var node = createNode(154);
+            parseExpected(22);
+            node.expression = allowInAnd(parseExpression);
+            parseExpected(23);
+            return finishNode(node);
+        }
+        function internPrivateIdentifier(text) {
+            var privateIdentifier = privateIdentifiers.get(text);
+            if (privateIdentifier === undefined) {
+                privateIdentifiers.set(text, privateIdentifier = text);
+            }
+            return privateIdentifier;
+        }
+        function parsePrivateIdentifier() {
+            var node = createNode(76);
+            node.escapedText = ts.escapeLeadingUnderscores(internPrivateIdentifier(scanner.getTokenText()));
+            nextToken();
+            return finishNode(node);
+        }
+        function parseContextualModifier(t) {
+            return token() === t && tryParse(nextTokenCanFollowModifier);
+        }
+        function nextTokenIsOnSameLineAndCanFollowModifier() {
+            nextToken();
+            if (scanner.hasPrecedingLineBreak()) {
+                return false;
+            }
+            return canFollowModifier();
+        }
+        function nextTokenCanFollowModifier() {
+            switch (token()) {
+                case 81:
+                    return nextToken() === 88;
+                case 89:
+                    nextToken();
+                    if (token() === 84) {
+                        return lookAhead(nextTokenCanFollowDefaultKeyword);
+                    }
+                    if (token() === 145) {
+                        return lookAhead(nextTokenCanFollowExportModifier);
+                    }
+                    return canFollowExportModifier();
+                case 84:
+                    return nextTokenCanFollowDefaultKeyword();
+                case 120:
+                case 131:
+                case 142:
+                    nextToken();
+                    return canFollowModifier();
+                default:
+                    return nextTokenIsOnSameLineAndCanFollowModifier();
+            }
+        }
+        function canFollowExportModifier() {
+            return token() !== 41
+                && token() !== 123
+                && token() !== 18
+                && canFollowModifier();
+        }
+        function nextTokenCanFollowExportModifier() {
+            nextToken();
+            return canFollowExportModifier();
+        }
+        function parseAnyContextualModifier() {
+            return ts.isModifierKind(token()) && tryParse(nextTokenCanFollowModifier);
+        }
+        function canFollowModifier() {
+            return token() === 22
+                || token() === 18
+                || token() === 41
+                || token() === 25
+                || isLiteralPropertyName();
+        }
+        function nextTokenCanFollowDefaultKeyword() {
+            nextToken();
+            return token() === 80 || token() === 94 ||
+                token() === 114 ||
+                (token() === 122 && lookAhead(nextTokenIsClassKeywordOnSameLine)) ||
+                (token() === 126 && lookAhead(nextTokenIsFunctionKeywordOnSameLine));
+        }
+        function isListElement(parsingContext, inErrorRecovery) {
+            var node = currentNode(parsingContext);
+            if (node) {
+                return true;
+            }
+            switch (parsingContext) {
+                case 0:
+                case 1:
+                case 3:
+                    return !(token() === 26 && inErrorRecovery) && isStartOfStatement();
+                case 2:
+                    return token() === 78 || token() === 84;
+                case 4:
+                    return lookAhead(isTypeMemberStart);
+                case 5:
+                    return lookAhead(isClassMemberStart) || (token() === 26 && !inErrorRecovery);
+                case 6:
+                    return token() === 22 || isLiteralPropertyName();
+                case 12:
+                    switch (token()) {
+                        case 22:
+                        case 41:
+                        case 25:
+                        case 24:
+                            return true;
+                        default:
+                            return isLiteralPropertyName();
+                    }
+                case 18:
+                    return isLiteralPropertyName();
+                case 9:
+                    return token() === 22 || token() === 25 || isLiteralPropertyName();
+                case 7:
+                    if (token() === 18) {
+                        return lookAhead(isValidHeritageClauseObjectLiteral);
+                    }
+                    if (!inErrorRecovery) {
+                        return isStartOfLeftHandSideExpression() && !isHeritageClauseExtendsOrImplementsKeyword();
+                    }
+                    else {
+                        return isIdentifier() && !isHeritageClauseExtendsOrImplementsKeyword();
+                    }
+                case 8:
+                    return isIdentifierOrPrivateIdentifierOrPattern();
+                case 10:
+                    return token() === 27 || token() === 25 || isIdentifierOrPrivateIdentifierOrPattern();
+                case 19:
+                    return isIdentifier();
+                case 15:
+                    switch (token()) {
+                        case 27:
+                        case 24:
+                            return true;
+                    }
+                case 11:
+                    return token() === 25 || isStartOfExpression();
+                case 16:
+                    return isStartOfParameter(false);
+                case 17:
+                    return isStartOfParameter(true);
+                case 20:
+                case 21:
+                    return token() === 27 || isStartOfType();
+                case 22:
+                    return isHeritageClause();
+                case 23:
+                    return ts.tokenIsIdentifierOrKeyword(token());
+                case 13:
+                    return ts.tokenIsIdentifierOrKeyword(token()) || token() === 18;
+                case 14:
+                    return true;
+            }
+            return ts.Debug.fail("Non-exhaustive case in 'isListElement'.");
+        }
+        function isValidHeritageClauseObjectLiteral() {
+            ts.Debug.assert(token() === 18);
+            if (nextToken() === 19) {
+                var next = nextToken();
+                return next === 27 || next === 18 || next === 90 || next === 113;
+            }
+            return true;
+        }
+        function nextTokenIsIdentifier() {
+            nextToken();
+            return isIdentifier();
+        }
+        function nextTokenIsIdentifierOrKeyword() {
+            nextToken();
+            return ts.tokenIsIdentifierOrKeyword(token());
+        }
+        function nextTokenIsIdentifierOrKeywordOrGreaterThan() {
+            nextToken();
+            return ts.tokenIsIdentifierOrKeywordOrGreaterThan(token());
+        }
+        function isHeritageClauseExtendsOrImplementsKeyword() {
+            if (token() === 113 ||
+                token() === 90) {
+                return lookAhead(nextTokenIsStartOfExpression);
+            }
+            return false;
+        }
+        function nextTokenIsStartOfExpression() {
+            nextToken();
+            return isStartOfExpression();
+        }
+        function nextTokenIsStartOfType() {
+            nextToken();
+            return isStartOfType();
+        }
+        function isListTerminator(kind) {
+            if (token() === 1) {
+                return true;
+            }
+            switch (kind) {
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                case 6:
+                case 12:
+                case 9:
+                case 23:
+                    return token() === 19;
+                case 3:
+                    return token() === 19 || token() === 78 || token() === 84;
+                case 7:
+                    return token() === 18 || token() === 90 || token() === 113;
+                case 8:
+                    return isVariableDeclaratorListTerminator();
+                case 19:
+                    return token() === 31 || token() === 20 || token() === 18 || token() === 90 || token() === 113;
+                case 11:
+                    return token() === 21 || token() === 26;
+                case 15:
+                case 21:
+                case 10:
+                    return token() === 23;
+                case 17:
+                case 16:
+                case 18:
+                    return token() === 21 || token() === 23;
+                case 20:
+                    return token() !== 27;
+                case 22:
+                    return token() === 18 || token() === 19;
+                case 13:
+                    return token() === 31 || token() === 43;
+                case 14:
+                    return token() === 29 && lookAhead(nextTokenIsSlash);
+                default:
+                    return false;
+            }
+        }
+        function isVariableDeclaratorListTerminator() {
+            if (canParseSemicolon()) {
+                return true;
+            }
+            if (isInOrOfKeyword(token())) {
+                return true;
+            }
+            if (token() === 38) {
+                return true;
+            }
+            return false;
+        }
+        function isInSomeParsingContext() {
+            for (var kind = 0; kind < 24; kind++) {
+                if (parsingContext & (1 << kind)) {
+                    if (isListElement(kind, true) || isListTerminator(kind)) {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
+        function parseList(kind, parseElement) {
+            var saveParsingContext = parsingContext;
+            parsingContext |= 1 << kind;
+            var list = [];
+            var listPos = getNodePos();
+            while (!isListTerminator(kind)) {
+                if (isListElement(kind, false)) {
+                    var element = parseListElement(kind, parseElement);
+                    list.push(element);
+                    continue;
+                }
+                if (abortParsingListOrMoveToNextToken(kind)) {
+                    break;
+                }
+            }
+            parsingContext = saveParsingContext;
+            return createNodeArray(list, listPos);
+        }
+        function parseListElement(parsingContext, parseElement) {
+            var node = currentNode(parsingContext);
+            if (node) {
+                return consumeNode(node);
+            }
+            return parseElement();
+        }
+        function currentNode(parsingContext) {
+            if (!syntaxCursor || !isReusableParsingContext(parsingContext) || parseErrorBeforeNextFinishedNode) {
+                return undefined;
+            }
+            var node = syntaxCursor.currentNode(scanner.getStartPos());
+            if (ts.nodeIsMissing(node) || node.intersectsChange || ts.containsParseError(node)) {
+                return undefined;
+            }
+            var nodeContextFlags = node.flags & 25358336;
+            if (nodeContextFlags !== contextFlags) {
+                return undefined;
+            }
+            if (!canReuseNode(node, parsingContext)) {
+                return undefined;
+            }
+            if (node.jsDocCache) {
+                node.jsDocCache = undefined;
+            }
+            return node;
+        }
+        function consumeNode(node) {
+            scanner.setTextPos(node.end);
+            nextToken();
+            return node;
+        }
+        function isReusableParsingContext(parsingContext) {
+            switch (parsingContext) {
+                case 5:
+                case 2:
+                case 0:
+                case 1:
+                case 3:
+                case 6:
+                case 4:
+                case 8:
+                case 17:
+                case 16:
+                    return true;
+            }
+            return false;
+        }
+        function canReuseNode(node, parsingContext) {
+            switch (parsingContext) {
+                case 5:
+                    return isReusableClassMember(node);
+                case 2:
+                    return isReusableSwitchClause(node);
+                case 0:
+                case 1:
+                case 3:
+                    return isReusableStatement(node);
+                case 6:
+                    return isReusableEnumMember(node);
+                case 4:
+                    return isReusableTypeMember(node);
+                case 8:
+                    return isReusableVariableDeclaration(node);
+                case 17:
+                case 16:
+                    return isReusableParameter(node);
+            }
+            return false;
+        }
+        function isReusableClassMember(node) {
+            if (node) {
+                switch (node.kind) {
+                    case 162:
+                    case 167:
+                    case 163:
+                    case 164:
+                    case 159:
+                    case 222:
+                        return true;
+                    case 161:
+                        var methodDeclaration = node;
+                        var nameIsConstructor = methodDeclaration.name.kind === 75 &&
+                            methodDeclaration.name.originalKeywordKind === 129;
+                        return !nameIsConstructor;
+                }
+            }
+            return false;
+        }
+        function isReusableSwitchClause(node) {
+            if (node) {
+                switch (node.kind) {
+                    case 277:
+                    case 278:
+                        return true;
+                }
+            }
+            return false;
+        }
+        function isReusableStatement(node) {
+            if (node) {
+                switch (node.kind) {
+                    case 244:
+                    case 225:
+                    case 223:
+                    case 227:
+                    case 226:
+                    case 239:
+                    case 235:
+                    case 237:
+                    case 234:
+                    case 233:
+                    case 231:
+                    case 232:
+                    case 230:
+                    case 229:
+                    case 236:
+                    case 224:
+                    case 240:
+                    case 238:
+                    case 228:
+                    case 241:
+                    case 254:
+                    case 253:
+                    case 260:
+                    case 259:
+                    case 249:
+                    case 245:
+                    case 246:
+                    case 248:
+                    case 247:
+                        return true;
+                }
+            }
+            return false;
+        }
+        function isReusableEnumMember(node) {
+            return node.kind === 284;
+        }
+        function isReusableTypeMember(node) {
+            if (node) {
+                switch (node.kind) {
+                    case 166:
+                    case 160:
+                    case 167:
+                    case 158:
+                    case 165:
+                        return true;
+                }
+            }
+            return false;
+        }
+        function isReusableVariableDeclaration(node) {
+            if (node.kind !== 242) {
+                return false;
+            }
+            var variableDeclarator = node;
+            return variableDeclarator.initializer === undefined;
+        }
+        function isReusableParameter(node) {
+            if (node.kind !== 156) {
+                return false;
+            }
+            var parameter = node;
+            return parameter.initializer === undefined;
+        }
+        function abortParsingListOrMoveToNextToken(kind) {
+            parseErrorAtCurrentToken(parsingContextErrors(kind));
+            if (isInSomeParsingContext()) {
+                return true;
+            }
+            nextToken();
+            return false;
+        }
+        function parsingContextErrors(context) {
+            switch (context) {
+                case 0: return ts.Diagnostics.Declaration_or_statement_expected;
+                case 1: return ts.Diagnostics.Declaration_or_statement_expected;
+                case 2: return ts.Diagnostics.case_or_default_expected;
+                case 3: return ts.Diagnostics.Statement_expected;
+                case 18:
+                case 4: return ts.Diagnostics.Property_or_signature_expected;
+                case 5: return ts.Diagnostics.Unexpected_token_A_constructor_method_accessor_or_property_was_expected;
+                case 6: return ts.Diagnostics.Enum_member_expected;
+                case 7: return ts.Diagnostics.Expression_expected;
+                case 8: return ts.Diagnostics.Variable_declaration_expected;
+                case 9: return ts.Diagnostics.Property_destructuring_pattern_expected;
+                case 10: return ts.Diagnostics.Array_element_destructuring_pattern_expected;
+                case 11: return ts.Diagnostics.Argument_expression_expected;
+                case 12: return ts.Diagnostics.Property_assignment_expected;
+                case 15: return ts.Diagnostics.Expression_or_comma_expected;
+                case 17: return ts.Diagnostics.Parameter_declaration_expected;
+                case 16: return ts.Diagnostics.Parameter_declaration_expected;
+                case 19: return ts.Diagnostics.Type_parameter_declaration_expected;
+                case 20: return ts.Diagnostics.Type_argument_expected;
+                case 21: return ts.Diagnostics.Type_expected;
+                case 22: return ts.Diagnostics.Unexpected_token_expected;
+                case 23: return ts.Diagnostics.Identifier_expected;
+                case 13: return ts.Diagnostics.Identifier_expected;
+                case 14: return ts.Diagnostics.Identifier_expected;
+                default: return undefined;
+            }
+        }
+        function parseDelimitedList(kind, parseElement, considerSemicolonAsDelimiter) {
+            var saveParsingContext = parsingContext;
+            parsingContext |= 1 << kind;
+            var list = [];
+            var listPos = getNodePos();
+            var commaStart = -1;
+            while (true) {
+                if (isListElement(kind, false)) {
+                    var startPos = scanner.getStartPos();
+                    list.push(parseListElement(kind, parseElement));
+                    commaStart = scanner.getTokenPos();
+                    if (parseOptional(27)) {
+                        continue;
+                    }
+                    commaStart = -1;
+                    if (isListTerminator(kind)) {
+                        break;
+                    }
+                    parseExpected(27, getExpectedCommaDiagnostic(kind));
+                    if (considerSemicolonAsDelimiter && token() === 26 && !scanner.hasPrecedingLineBreak()) {
+                        nextToken();
+                    }
+                    if (startPos === scanner.getStartPos()) {
+                        nextToken();
+                    }
+                    continue;
+                }
+                if (isListTerminator(kind)) {
+                    break;
+                }
+                if (abortParsingListOrMoveToNextToken(kind)) {
+                    break;
+                }
+            }
+            parsingContext = saveParsingContext;
+            var result = createNodeArray(list, listPos);
+            if (commaStart >= 0) {
+                result.hasTrailingComma = true;
+            }
+            return result;
+        }
+        function getExpectedCommaDiagnostic(kind) {
+            return kind === 6 ? ts.Diagnostics.An_enum_member_name_must_be_followed_by_a_or : undefined;
+        }
+        function createMissingList() {
+            var list = createNodeArray([], getNodePos());
+            list.isMissingList = true;
+            return list;
+        }
+        function isMissingList(arr) {
+            return !!arr.isMissingList;
+        }
+        function parseBracketedList(kind, parseElement, open, close) {
+            if (parseExpected(open)) {
+                var result = parseDelimitedList(kind, parseElement);
+                parseExpected(close);
+                return result;
+            }
+            return createMissingList();
+        }
+        function parseEntityName(allowReservedWords, diagnosticMessage) {
+            var entity = allowReservedWords ? parseIdentifierName(diagnosticMessage) : parseIdentifier(diagnosticMessage);
+            var dotPos = scanner.getStartPos();
+            while (parseOptional(24)) {
+                if (token() === 29) {
+                    entity.jsdocDotPos = dotPos;
+                    break;
+                }
+                dotPos = scanner.getStartPos();
+                entity = createQualifiedName(entity, parseRightSideOfDot(allowReservedWords, false));
+            }
+            return entity;
+        }
+        function createQualifiedName(entity, name) {
+            var node = createNode(153, entity.pos);
+            node.left = entity;
+            node.right = name;
+            return finishNode(node);
+        }
+        function parseRightSideOfDot(allowIdentifierNames, allowPrivateIdentifiers) {
+            if (scanner.hasPrecedingLineBreak() && ts.tokenIsIdentifierOrKeyword(token())) {
+                var matchesPattern = lookAhead(nextTokenIsIdentifierOrKeywordOnSameLine);
+                if (matchesPattern) {
+                    return createMissingNode(75, true, ts.Diagnostics.Identifier_expected);
+                }
+            }
+            if (token() === 76) {
+                var node = parsePrivateIdentifier();
+                return allowPrivateIdentifiers ? node : createMissingNode(75, true, ts.Diagnostics.Identifier_expected);
+            }
+            return allowIdentifierNames ? parseIdentifierName() : parseIdentifier();
+        }
+        function parseTemplateExpression(isTaggedTemplate) {
+            var template = createNode(211);
+            template.head = parseTemplateHead(isTaggedTemplate);
+            ts.Debug.assert(template.head.kind === 15, "Template head has wrong token kind");
+            var list = [];
+            var listPos = getNodePos();
+            do {
+                list.push(parseTemplateSpan(isTaggedTemplate));
+            } while (ts.last(list).literal.kind === 16);
+            template.templateSpans = createNodeArray(list, listPos);
+            return finishNode(template);
+        }
+        function parseTemplateSpan(isTaggedTemplate) {
+            var span = createNode(221);
+            span.expression = allowInAnd(parseExpression);
+            var literal;
+            if (token() === 19) {
+                reScanTemplateToken(isTaggedTemplate);
+                literal = parseTemplateMiddleOrTemplateTail();
+            }
+            else {
+                literal = parseExpectedToken(17, ts.Diagnostics._0_expected, ts.tokenToString(19));
+            }
+            span.literal = literal;
+            return finishNode(span);
+        }
+        function parseLiteralNode() {
+            return parseLiteralLikeNode(token());
+        }
+        function parseTemplateHead(isTaggedTemplate) {
+            if (isTaggedTemplate) {
+                reScanTemplateHeadOrNoSubstitutionTemplate();
+            }
+            var fragment = parseLiteralLikeNode(token());
+            ts.Debug.assert(fragment.kind === 15, "Template head has wrong token kind");
+            return fragment;
+        }
+        function parseTemplateMiddleOrTemplateTail() {
+            var fragment = parseLiteralLikeNode(token());
+            ts.Debug.assert(fragment.kind === 16 || fragment.kind === 17, "Template fragment has wrong token kind");
+            return fragment;
+        }
+        function parseLiteralLikeNode(kind) {
+            var node = createNode(kind);
+            node.text = scanner.getTokenValue();
+            switch (kind) {
+                case 14:
+                case 15:
+                case 16:
+                case 17:
+                    var isLast = kind === 14 || kind === 17;
+                    var tokenText = scanner.getTokenText();
+                    node.rawText = tokenText.substring(1, tokenText.length - (scanner.isUnterminated() ? 0 : isLast ? 1 : 2));
+                    break;
+            }
+            if (scanner.hasExtendedUnicodeEscape()) {
+                node.hasExtendedUnicodeEscape = true;
+            }
+            if (scanner.isUnterminated()) {
+                node.isUnterminated = true;
+            }
+            if (node.kind === 8) {
+                node.numericLiteralFlags = scanner.getTokenFlags() & 1008;
+            }
+            if (ts.isTemplateLiteralKind(node.kind)) {
+                node.templateFlags = scanner.getTokenFlags() & 2048;
+            }
+            nextToken();
+            finishNode(node);
+            return node;
+        }
+        function parseTypeReference() {
+            var node = createNode(169);
+            node.typeName = parseEntityName(true, ts.Diagnostics.Type_expected);
+            if (!scanner.hasPrecedingLineBreak() && reScanLessThanToken() === 29) {
+                node.typeArguments = parseBracketedList(20, parseType, 29, 31);
+            }
+            return finishNode(node);
+        }
+        function typeHasArrowFunctionBlockingParseError(node) {
+            switch (node.kind) {
+                case 169:
+                    return ts.nodeIsMissing(node.typeName);
+                case 170:
+                case 171: {
+                    var _a = node, parameters = _a.parameters, type = _a.type;
+                    return isMissingList(parameters) || typeHasArrowFunctionBlockingParseError(type);
+                }
+                case 182:
+                    return typeHasArrowFunctionBlockingParseError(node.type);
+                default:
+                    return false;
+            }
+        }
+        function parseThisTypePredicate(lhs) {
+            nextToken();
+            var node = createNode(168, lhs.pos);
+            node.parameterName = lhs;
+            node.type = parseType();
+            return finishNode(node);
+        }
+        function parseThisTypeNode() {
+            var node = createNode(183);
+            nextToken();
+            return finishNode(node);
+        }
+        function parseJSDocAllType(postFixEquals) {
+            var result = createNode(295);
+            if (postFixEquals) {
+                return createPostfixType(299, result);
+            }
+            else {
+                nextToken();
+            }
+            return finishNode(result);
+        }
+        function parseJSDocNonNullableType() {
+            var result = createNode(298);
+            nextToken();
+            result.type = parseNonArrayType();
+            return finishNode(result);
+        }
+        function parseJSDocUnknownOrNullableType() {
+            var pos = scanner.getStartPos();
+            nextToken();
+            if (token() === 27 ||
+                token() === 19 ||
+                token() === 21 ||
+                token() === 31 ||
+                token() === 62 ||
+                token() === 51) {
+                var result = createNode(296, pos);
+                return finishNode(result);
+            }
+            else {
+                var result = createNode(297, pos);
+                result.type = parseType();
+                return finishNode(result);
+            }
+        }
+        function parseJSDocFunctionType() {
+            if (lookAhead(nextTokenIsOpenParen)) {
+                var result = createNodeWithJSDoc(300);
+                nextToken();
+                fillSignature(58, 4 | 32, result);
+                return finishNode(result);
+            }
+            var node = createNode(169);
+            node.typeName = parseIdentifierName();
+            return finishNode(node);
+        }
+        function parseJSDocParameter() {
+            var parameter = createNode(156);
+            if (token() === 104 || token() === 99) {
+                parameter.name = parseIdentifierName();
+                parseExpected(58);
+            }
+            parameter.type = parseJSDocType();
+            return finishNode(parameter);
+        }
+        function parseJSDocType() {
+            scanner.setInJSDocType(true);
+            var moduleSpecifier = parseOptionalToken(135);
+            if (moduleSpecifier) {
+                var moduleTag = createNode(302, moduleSpecifier.pos);
+                terminate: while (true) {
+                    switch (token()) {
+                        case 19:
+                        case 1:
+                        case 27:
+                        case 5:
+                            break terminate;
+                        default:
+                            nextTokenJSDoc();
+                    }
+                }
+                scanner.setInJSDocType(false);
+                return finishNode(moduleTag);
+            }
+            var dotdotdot = parseOptionalToken(25);
+            var type = parseTypeOrTypePredicate();
+            scanner.setInJSDocType(false);
+            if (dotdotdot) {
+                var variadic = createNode(301, dotdotdot.pos);
+                variadic.type = type;
+                type = finishNode(variadic);
+            }
+            if (token() === 62) {
+                return createPostfixType(299, type);
+            }
+            return type;
+        }
+        function parseTypeQuery() {
+            var node = createNode(172);
+            parseExpected(108);
+            node.exprName = parseEntityName(true);
+            return finishNode(node);
+        }
+        function parseTypeParameter() {
+            var node = createNode(155);
+            node.name = parseIdentifier();
+            if (parseOptional(90)) {
+                if (isStartOfType() || !isStartOfExpression()) {
+                    node.constraint = parseType();
+                }
+                else {
+                    node.expression = parseUnaryExpressionOrHigher();
+                }
+            }
+            if (parseOptional(62)) {
+                node.default = parseType();
+            }
+            return finishNode(node);
+        }
+        function parseTypeParameters() {
+            if (token() === 29) {
+                return parseBracketedList(19, parseTypeParameter, 29, 31);
+            }
+        }
+        function parseParameterType() {
+            if (parseOptional(58)) {
+                return parseType();
+            }
+            return undefined;
+        }
+        function isStartOfParameter(isJSDocParameter) {
+            return token() === 25 ||
+                isIdentifierOrPrivateIdentifierOrPattern() ||
+                ts.isModifierKind(token()) ||
+                token() === 59 ||
+                isStartOfType(!isJSDocParameter);
+        }
+        function parseParameter() {
+            var node = createNodeWithJSDoc(156);
+            if (token() === 104) {
+                node.name = createIdentifier(true);
+                node.type = parseParameterType();
+                return finishNode(node);
+            }
+            node.decorators = parseDecorators();
+            node.modifiers = parseModifiers();
+            node.dotDotDotToken = parseOptionalToken(25);
+            node.name = parseIdentifierOrPattern(ts.Diagnostics.Private_identifiers_cannot_be_used_as_parameters);
+            if (ts.getFullWidth(node.name) === 0 && !node.modifiers && ts.isModifierKind(token())) {
+                nextToken();
+            }
+            node.questionToken = parseOptionalToken(57);
+            node.type = parseParameterType();
+            node.initializer = parseInitializer();
+            return finishNode(node);
+        }
+        function fillSignature(returnToken, flags, signature) {
+            if (!(flags & 32)) {
+                signature.typeParameters = parseTypeParameters();
+            }
+            var parametersParsedSuccessfully = parseParameterList(signature, flags);
+            if (shouldParseReturnType(returnToken, !!(flags & 4))) {
+                signature.type = parseTypeOrTypePredicate();
+                if (typeHasArrowFunctionBlockingParseError(signature.type))
+                    return false;
+            }
+            return parametersParsedSuccessfully;
+        }
+        function shouldParseReturnType(returnToken, isType) {
+            if (returnToken === 38) {
+                parseExpected(returnToken);
+                return true;
+            }
+            else if (parseOptional(58)) {
+                return true;
+            }
+            else if (isType && token() === 38) {
+                parseErrorAtCurrentToken(ts.Diagnostics._0_expected, ts.tokenToString(58));
+                nextToken();
+                return true;
+            }
+            return false;
+        }
+        function parseParameterList(signature, flags) {
+            if (!parseExpected(20)) {
+                signature.parameters = createMissingList();
+                return false;
+            }
+            var savedYieldContext = inYieldContext();
+            var savedAwaitContext = inAwaitContext();
+            setYieldContext(!!(flags & 1));
+            setAwaitContext(!!(flags & 2));
+            signature.parameters = flags & 32 ?
+                parseDelimitedList(17, parseJSDocParameter) :
+                parseDelimitedList(16, parseParameter);
+            setYieldContext(savedYieldContext);
+            setAwaitContext(savedAwaitContext);
+            return parseExpected(21);
+        }
+        function parseTypeMemberSemicolon() {
+            if (parseOptional(27)) {
+                return;
+            }
+            parseSemicolon();
+        }
+        function parseSignatureMember(kind) {
+            var node = createNodeWithJSDoc(kind);
+            if (kind === 166) {
+                parseExpected(99);
+            }
+            fillSignature(58, 4, node);
+            parseTypeMemberSemicolon();
+            return finishNode(node);
+        }
+        function isIndexSignature() {
+            return token() === 22 && lookAhead(isUnambiguouslyIndexSignature);
+        }
+        function isUnambiguouslyIndexSignature() {
+            nextToken();
+            if (token() === 25 || token() === 23) {
+                return true;
+            }
+            if (ts.isModifierKind(token())) {
+                nextToken();
+                if (isIdentifier()) {
+                    return true;
+                }
+            }
+            else if (!isIdentifier()) {
+                return false;
+            }
+            else {
+                nextToken();
+            }
+            if (token() === 58 || token() === 27) {
+                return true;
+            }
+            if (token() !== 57) {
+                return false;
+            }
+            nextToken();
+            return token() === 58 || token() === 27 || token() === 23;
+        }
+        function parseIndexSignatureDeclaration(node) {
+            node.kind = 167;
+            node.parameters = parseBracketedList(16, parseParameter, 22, 23);
+            node.type = parseTypeAnnotation();
+            parseTypeMemberSemicolon();
+            return finishNode(node);
+        }
+        function parsePropertyOrMethodSignature(node) {
+            node.name = parsePropertyName();
+            node.questionToken = parseOptionalToken(57);
+            if (token() === 20 || token() === 29) {
+                node.kind = 160;
+                fillSignature(58, 4, node);
+            }
+            else {
+                node.kind = 158;
+                node.type = parseTypeAnnotation();
+                if (token() === 62) {
+                    node.initializer = parseInitializer();
+                }
+            }
+            parseTypeMemberSemicolon();
+            return finishNode(node);
+        }
+        function isTypeMemberStart() {
+            if (token() === 20 || token() === 29) {
+                return true;
+            }
+            var idToken = false;
+            while (ts.isModifierKind(token())) {
+                idToken = true;
+                nextToken();
+            }
+            if (token() === 22) {
+                return true;
+            }
+            if (isLiteralPropertyName()) {
+                idToken = true;
+                nextToken();
+            }
+            if (idToken) {
+                return token() === 20 ||
+                    token() === 29 ||
+                    token() === 57 ||
+                    token() === 58 ||
+                    token() === 27 ||
+                    canParseSemicolon();
+            }
+            return false;
+        }
+        function parseTypeMember() {
+            if (token() === 20 || token() === 29) {
+                return parseSignatureMember(165);
+            }
+            if (token() === 99 && lookAhead(nextTokenIsOpenParenOrLessThan)) {
+                return parseSignatureMember(166);
+            }
+            var node = createNodeWithJSDoc(0);
+            node.modifiers = parseModifiers();
+            if (isIndexSignature()) {
+                return parseIndexSignatureDeclaration(node);
+            }
+            return parsePropertyOrMethodSignature(node);
+        }
+        function nextTokenIsOpenParenOrLessThan() {
+            nextToken();
+            return token() === 20 || token() === 29;
+        }
+        function nextTokenIsDot() {
+            return nextToken() === 24;
+        }
+        function nextTokenIsOpenParenOrLessThanOrDot() {
+            switch (nextToken()) {
+                case 20:
+                case 29:
+                case 24:
+                    return true;
+            }
+            return false;
+        }
+        function parseTypeLiteral() {
+            var node = createNode(173);
+            node.members = parseObjectTypeMembers();
+            return finishNode(node);
+        }
+        function parseObjectTypeMembers() {
+            var members;
+            if (parseExpected(18)) {
+                members = parseList(4, parseTypeMember);
+                parseExpected(19);
+            }
+            else {
+                members = createMissingList();
+            }
+            return members;
+        }
+        function isStartOfMappedType() {
+            nextToken();
+            if (token() === 39 || token() === 40) {
+                return nextToken() === 138;
+            }
+            if (token() === 138) {
+                nextToken();
+            }
+            return token() === 22 && nextTokenIsIdentifier() && nextToken() === 97;
+        }
+        function parseMappedTypeParameter() {
+            var node = createNode(155);
+            node.name = parseIdentifier();
+            parseExpected(97);
+            node.constraint = parseType();
+            return finishNode(node);
+        }
+        function parseMappedType() {
+            var node = createNode(186);
+            parseExpected(18);
+            if (token() === 138 || token() === 39 || token() === 40) {
+                node.readonlyToken = parseTokenNode();
+                if (node.readonlyToken.kind !== 138) {
+                    parseExpectedToken(138);
+                }
+            }
+            parseExpected(22);
+            node.typeParameter = parseMappedTypeParameter();
+            parseExpected(23);
+            if (token() === 57 || token() === 39 || token() === 40) {
+                node.questionToken = parseTokenNode();
+                if (node.questionToken.kind !== 57) {
+                    parseExpectedToken(57);
+                }
+            }
+            node.type = parseTypeAnnotation();
+            parseSemicolon();
+            parseExpected(19);
+            return finishNode(node);
+        }
+        function parseTupleElementType() {
+            var pos = getNodePos();
+            if (parseOptional(25)) {
+                var node = createNode(177, pos);
+                node.type = parseType();
+                return finishNode(node);
+            }
+            var type = parseType();
+            if (!(contextFlags & 4194304) && type.kind === 297 && type.pos === type.type.pos) {
+                type.kind = 176;
+            }
+            return type;
+        }
+        function parseTupleType() {
+            var node = createNode(175);
+            node.elementTypes = parseBracketedList(21, parseTupleElementType, 22, 23);
+            return finishNode(node);
+        }
+        function parseParenthesizedType() {
+            var node = createNode(182);
+            parseExpected(20);
+            node.type = parseType();
+            parseExpected(21);
+            return finishNode(node);
+        }
+        function parseFunctionOrConstructorType() {
+            var pos = getNodePos();
+            var kind = parseOptional(99) ? 171 : 170;
+            var node = createNodeWithJSDoc(kind, pos);
+            fillSignature(38, 4, node);
+            return finishNode(node);
+        }
+        function parseKeywordAndNoDot() {
+            var node = parseTokenNode();
+            return token() === 24 ? undefined : node;
+        }
+        function parseLiteralTypeNode(negative) {
+            var node = createNode(187);
+            var unaryMinusExpression;
+            if (negative) {
+                unaryMinusExpression = createNode(207);
+                unaryMinusExpression.operator = 40;
+                nextToken();
+            }
+            var expression = token() === 106 || token() === 91
+                ? parseTokenNode()
+                : parseLiteralLikeNode(token());
+            if (negative) {
+                unaryMinusExpression.operand = expression;
+                finishNode(unaryMinusExpression);
+                expression = unaryMinusExpression;
+            }
+            node.literal = expression;
+            return finishNode(node);
+        }
+        function isStartOfTypeOfImportType() {
+            nextToken();
+            return token() === 96;
+        }
+        function parseImportType() {
+            sourceFile.flags |= 1048576;
+            var node = createNode(188);
+            if (parseOptional(108)) {
+                node.isTypeOf = true;
+            }
+            parseExpected(96);
+            parseExpected(20);
+            node.argument = parseType();
+            parseExpected(21);
+            if (parseOptional(24)) {
+                node.qualifier = parseEntityName(true, ts.Diagnostics.Type_expected);
+            }
+            if (!scanner.hasPrecedingLineBreak() && reScanLessThanToken() === 29) {
+                node.typeArguments = parseBracketedList(20, parseType, 29, 31);
+            }
+            return finishNode(node);
+        }
+        function nextTokenIsNumericOrBigIntLiteral() {
+            nextToken();
+            return token() === 8 || token() === 9;
+        }
+        function parseNonArrayType() {
+            switch (token()) {
+                case 125:
+                case 148:
+                case 143:
+                case 140:
+                case 151:
+                case 144:
+                case 128:
+                case 146:
+                case 137:
+                case 141:
+                    return tryParse(parseKeywordAndNoDot) || parseTypeReference();
+                case 41:
+                    return parseJSDocAllType(false);
+                case 65:
+                    return parseJSDocAllType(true);
+                case 60:
+                    scanner.reScanQuestionToken();
+                case 57:
+                    return parseJSDocUnknownOrNullableType();
+                case 94:
+                    return parseJSDocFunctionType();
+                case 53:
+                    return parseJSDocNonNullableType();
+                case 14:
+                case 10:
+                case 8:
+                case 9:
+                case 106:
+                case 91:
+                    return parseLiteralTypeNode();
+                case 40:
+                    return lookAhead(nextTokenIsNumericOrBigIntLiteral) ? parseLiteralTypeNode(true) : parseTypeReference();
+                case 110:
+                case 100:
+                    return parseTokenNode();
+                case 104: {
+                    var thisKeyword = parseThisTypeNode();
+                    if (token() === 133 && !scanner.hasPrecedingLineBreak()) {
+                        return parseThisTypePredicate(thisKeyword);
+                    }
+                    else {
+                        return thisKeyword;
+                    }
+                }
+                case 108:
+                    return lookAhead(isStartOfTypeOfImportType) ? parseImportType() : parseTypeQuery();
+                case 18:
+                    return lookAhead(isStartOfMappedType) ? parseMappedType() : parseTypeLiteral();
+                case 22:
+                    return parseTupleType();
+                case 20:
+                    return parseParenthesizedType();
+                case 96:
+                    return parseImportType();
+                case 124:
+                    return lookAhead(nextTokenIsIdentifierOrKeywordOnSameLine) ? parseAssertsTypePredicate() : parseTypeReference();
+                default:
+                    return parseTypeReference();
+            }
+        }
+        function isStartOfType(inStartOfParameter) {
+            switch (token()) {
+                case 125:
+                case 148:
+                case 143:
+                case 140:
+                case 151:
+                case 128:
+                case 138:
+                case 144:
+                case 147:
+                case 110:
+                case 146:
+                case 100:
+                case 104:
+                case 108:
+                case 137:
+                case 18:
+                case 22:
+                case 29:
+                case 51:
+                case 50:
+                case 99:
+                case 10:
+                case 8:
+                case 9:
+                case 106:
+                case 91:
+                case 141:
+                case 41:
+                case 57:
+                case 53:
+                case 25:
+                case 132:
+                case 96:
+                case 124:
+                    return true;
+                case 94:
+                    return !inStartOfParameter;
+                case 40:
+                    return !inStartOfParameter && lookAhead(nextTokenIsNumericOrBigIntLiteral);
+                case 20:
+                    return !inStartOfParameter && lookAhead(isStartOfParenthesizedOrFunctionType);
+                default:
+                    return isIdentifier();
+            }
+        }
+        function isStartOfParenthesizedOrFunctionType() {
+            nextToken();
+            return token() === 21 || isStartOfParameter(false) || isStartOfType();
+        }
+        function parsePostfixTypeOrHigher() {
+            var type = parseNonArrayType();
+            while (!scanner.hasPrecedingLineBreak()) {
+                switch (token()) {
+                    case 53:
+                        type = createPostfixType(298, type);
+                        break;
+                    case 57:
+                        if (!(contextFlags & 4194304) && lookAhead(nextTokenIsStartOfType)) {
+                            return type;
+                        }
+                        type = createPostfixType(297, type);
+                        break;
+                    case 22:
+                        parseExpected(22);
+                        if (isStartOfType()) {
+                            var node = createNode(185, type.pos);
+                            node.objectType = type;
+                            node.indexType = parseType();
+                            parseExpected(23);
+                            type = finishNode(node);
+                        }
+                        else {
+                            var node = createNode(174, type.pos);
+                            node.elementType = type;
+                            parseExpected(23);
+                            type = finishNode(node);
+                        }
+                        break;
+                    default:
+                        return type;
+                }
+            }
+            return type;
+        }
+        function createPostfixType(kind, type) {
+            nextToken();
+            var postfix = createNode(kind, type.pos);
+            postfix.type = type;
+            return finishNode(postfix);
+        }
+        function parseTypeOperator(operator) {
+            var node = createNode(184);
+            parseExpected(operator);
+            node.operator = operator;
+            node.type = parseTypeOperatorOrHigher();
+            return finishNode(node);
+        }
+        function parseInferType() {
+            var node = createNode(181);
+            parseExpected(132);
+            var typeParameter = createNode(155);
+            typeParameter.name = parseIdentifier();
+            node.typeParameter = finishNode(typeParameter);
+            return finishNode(node);
+        }
+        function parseTypeOperatorOrHigher() {
+            var operator = token();
+            switch (operator) {
+                case 134:
+                case 147:
+                case 138:
+                    return parseTypeOperator(operator);
+                case 132:
+                    return parseInferType();
+            }
+            return parsePostfixTypeOrHigher();
+        }
+        function parseUnionOrIntersectionType(kind, parseConstituentType, operator) {
+            var start = scanner.getStartPos();
+            var hasLeadingOperator = parseOptional(operator);
+            var type = parseConstituentType();
+            if (token() === operator || hasLeadingOperator) {
+                var types = [type];
+                while (parseOptional(operator)) {
+                    types.push(parseConstituentType());
+                }
+                var node = createNode(kind, start);
+                node.types = createNodeArray(types, start);
+                type = finishNode(node);
+            }
+            return type;
+        }
+        function parseIntersectionTypeOrHigher() {
+            return parseUnionOrIntersectionType(179, parseTypeOperatorOrHigher, 50);
+        }
+        function parseUnionTypeOrHigher() {
+            return parseUnionOrIntersectionType(178, parseIntersectionTypeOrHigher, 51);
+        }
+        function isStartOfFunctionType() {
+            if (token() === 29) {
+                return true;
+            }
+            return token() === 20 && lookAhead(isUnambiguouslyStartOfFunctionType);
+        }
+        function skipParameterStart() {
+            if (ts.isModifierKind(token())) {
+                parseModifiers();
+            }
+            if (isIdentifier() || token() === 104) {
+                nextToken();
+                return true;
+            }
+            if (token() === 22 || token() === 18) {
+                var previousErrorCount = parseDiagnostics.length;
+                parseIdentifierOrPattern();
+                return previousErrorCount === parseDiagnostics.length;
+            }
+            return false;
+        }
+        function isUnambiguouslyStartOfFunctionType() {
+            nextToken();
+            if (token() === 21 || token() === 25) {
+                return true;
+            }
+            if (skipParameterStart()) {
+                if (token() === 58 || token() === 27 ||
+                    token() === 57 || token() === 62) {
+                    return true;
+                }
+                if (token() === 21) {
+                    nextToken();
+                    if (token() === 38) {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
+        function parseTypeOrTypePredicate() {
+            var typePredicateVariable = isIdentifier() && tryParse(parseTypePredicatePrefix);
+            var type = parseType();
+            if (typePredicateVariable) {
+                var node = createNode(168, typePredicateVariable.pos);
+                node.assertsModifier = undefined;
+                node.parameterName = typePredicateVariable;
+                node.type = type;
+                return finishNode(node);
+            }
+            else {
+                return type;
+            }
+        }
+        function parseTypePredicatePrefix() {
+            var id = parseIdentifier();
+            if (token() === 133 && !scanner.hasPrecedingLineBreak()) {
+                nextToken();
+                return id;
+            }
+        }
+        function parseAssertsTypePredicate() {
+            var node = createNode(168);
+            node.assertsModifier = parseExpectedToken(124);
+            node.parameterName = token() === 104 ? parseThisTypeNode() : parseIdentifier();
+            node.type = parseOptional(133) ? parseType() : undefined;
+            return finishNode(node);
+        }
+        function parseType() {
+            return doOutsideOfContext(40960, parseTypeWorker);
+        }
+        function parseTypeWorker(noConditionalTypes) {
+            if (isStartOfFunctionType() || token() === 99) {
+                return parseFunctionOrConstructorType();
+            }
+            var type = parseUnionTypeOrHigher();
+            if (!noConditionalTypes && !scanner.hasPrecedingLineBreak() && parseOptional(90)) {
+                var node = createNode(180, type.pos);
+                node.checkType = type;
+                node.extendsType = parseTypeWorker(true);
+                parseExpected(57);
+                node.trueType = parseTypeWorker();
+                parseExpected(58);
+                node.falseType = parseTypeWorker();
+                return finishNode(node);
+            }
+            return type;
+        }
+        function parseTypeAnnotation() {
+            return parseOptional(58) ? parseType() : undefined;
+        }
+        function isStartOfLeftHandSideExpression() {
+            switch (token()) {
+                case 104:
+                case 102:
+                case 100:
+                case 106:
+                case 91:
+                case 8:
+                case 9:
+                case 10:
+                case 14:
+                case 15:
+                case 20:
+                case 22:
+                case 18:
+                case 94:
+                case 80:
+                case 99:
+                case 43:
+                case 67:
+                case 75:
+                    return true;
+                case 96:
+                    return lookAhead(nextTokenIsOpenParenOrLessThanOrDot);
+                default:
+                    return isIdentifier();
+            }
+        }
+        function isStartOfExpression() {
+            if (isStartOfLeftHandSideExpression()) {
+                return true;
+            }
+            switch (token()) {
+                case 39:
+                case 40:
+                case 54:
+                case 53:
+                case 85:
+                case 108:
+                case 110:
+                case 45:
+                case 46:
+                case 29:
+                case 127:
+                case 121:
+                case 76:
+                    return true;
+                default:
+                    if (isBinaryOperator()) {
+                        return true;
+                    }
+                    return isIdentifier();
+            }
+        }
+        function isStartOfExpressionStatement() {
+            return token() !== 18 &&
+                token() !== 94 &&
+                token() !== 80 &&
+                token() !== 59 &&
+                isStartOfExpression();
+        }
+        function parseExpression() {
+            var saveDecoratorContext = inDecoratorContext();
+            if (saveDecoratorContext) {
+                setDecoratorContext(false);
+            }
+            var expr = parseAssignmentExpressionOrHigher();
+            var operatorToken;
+            while ((operatorToken = parseOptionalToken(27))) {
+                expr = makeBinaryExpression(expr, operatorToken, parseAssignmentExpressionOrHigher());
+            }
+            if (saveDecoratorContext) {
+                setDecoratorContext(true);
+            }
+            return expr;
+        }
+        function parseInitializer() {
+            return parseOptional(62) ? parseAssignmentExpressionOrHigher() : undefined;
+        }
+        function parseAssignmentExpressionOrHigher() {
+            if (isYieldExpression()) {
+                return parseYieldExpression();
+            }
+            var arrowExpression = tryParseParenthesizedArrowFunctionExpression() || tryParseAsyncSimpleArrowFunctionExpression();
+            if (arrowExpression) {
+                return arrowExpression;
+            }
+            var expr = parseBinaryExpressionOrHigher(0);
+            if (expr.kind === 75 && token() === 38) {
+                return parseSimpleArrowFunctionExpression(expr);
+            }
+            if (ts.isLeftHandSideExpression(expr) && ts.isAssignmentOperator(reScanGreaterToken())) {
+                return makeBinaryExpression(expr, parseTokenNode(), parseAssignmentExpressionOrHigher());
+            }
+            return parseConditionalExpressionRest(expr);
+        }
+        function isYieldExpression() {
+            if (token() === 121) {
+                if (inYieldContext()) {
+                    return true;
+                }
+                return lookAhead(nextTokenIsIdentifierOrKeywordOrLiteralOnSameLine);
+            }
+            return false;
+        }
+        function nextTokenIsIdentifierOnSameLine() {
+            nextToken();
+            return !scanner.hasPrecedingLineBreak() && isIdentifier();
+        }
+        function parseYieldExpression() {
+            var node = createNode(212);
+            nextToken();
+            if (!scanner.hasPrecedingLineBreak() &&
+                (token() === 41 || isStartOfExpression())) {
+                node.asteriskToken = parseOptionalToken(41);
+                node.expression = parseAssignmentExpressionOrHigher();
+                return finishNode(node);
+            }
+            else {
+                return finishNode(node);
+            }
+        }
+        function parseSimpleArrowFunctionExpression(identifier, asyncModifier) {
+            ts.Debug.assert(token() === 38, "parseSimpleArrowFunctionExpression should only have been called if we had a =>");
+            var node;
+            if (asyncModifier) {
+                node = createNode(202, asyncModifier.pos);
+                node.modifiers = asyncModifier;
+            }
+            else {
+                node = createNode(202, identifier.pos);
+            }
+            var parameter = createNode(156, identifier.pos);
+            parameter.name = identifier;
+            finishNode(parameter);
+            node.parameters = createNodeArray([parameter], parameter.pos, parameter.end);
+            node.equalsGreaterThanToken = parseExpectedToken(38);
+            node.body = parseArrowFunctionExpressionBody(!!asyncModifier);
+            return addJSDocComment(finishNode(node));
+        }
+        function tryParseParenthesizedArrowFunctionExpression() {
+            var triState = isParenthesizedArrowFunctionExpression();
+            if (triState === 0) {
+                return undefined;
+            }
+            var arrowFunction = triState === 1
+                ? parseParenthesizedArrowFunctionExpressionHead(true)
+                : tryParse(parsePossibleParenthesizedArrowFunctionExpressionHead);
+            if (!arrowFunction) {
+                return undefined;
+            }
+            var isAsync = hasModifierOfKind(arrowFunction, 126);
+            var lastToken = token();
+            arrowFunction.equalsGreaterThanToken = parseExpectedToken(38);
+            arrowFunction.body = (lastToken === 38 || lastToken === 18)
+                ? parseArrowFunctionExpressionBody(isAsync)
+                : parseIdentifier();
+            return finishNode(arrowFunction);
+        }
+        function isParenthesizedArrowFunctionExpression() {
+            if (token() === 20 || token() === 29 || token() === 126) {
+                return lookAhead(isParenthesizedArrowFunctionExpressionWorker);
+            }
+            if (token() === 38) {
+                return 1;
+            }
+            return 0;
+        }
+        function isParenthesizedArrowFunctionExpressionWorker() {
+            if (token() === 126) {
+                nextToken();
+                if (scanner.hasPrecedingLineBreak()) {
+                    return 0;
+                }
+                if (token() !== 20 && token() !== 29) {
+                    return 0;
+                }
+            }
+            var first = token();
+            var second = nextToken();
+            if (first === 20) {
+                if (second === 21) {
+                    var third = nextToken();
+                    switch (third) {
+                        case 38:
+                        case 58:
+                        case 18:
+                            return 1;
+                        default:
+                            return 0;
+                    }
+                }
+                if (second === 22 || second === 18) {
+                    return 2;
+                }
+                if (second === 25) {
+                    return 1;
+                }
+                if (ts.isModifierKind(second) && second !== 126 && lookAhead(nextTokenIsIdentifier)) {
+                    return 1;
+                }
+                if (!isIdentifier() && second !== 104) {
+                    return 0;
+                }
+                switch (nextToken()) {
+                    case 58:
+                        return 1;
+                    case 57:
+                        nextToken();
+                        if (token() === 58 || token() === 27 || token() === 62 || token() === 21) {
+                            return 1;
+                        }
+                        return 0;
+                    case 27:
+                    case 62:
+                    case 21:
+                        return 2;
+                }
+                return 0;
+            }
+            else {
+                ts.Debug.assert(first === 29);
+                if (!isIdentifier()) {
+                    return 0;
+                }
+                if (sourceFile.languageVariant === 1) {
+                    var isArrowFunctionInJsx = lookAhead(function () {
+                        var third = nextToken();
+                        if (third === 90) {
+                            var fourth = nextToken();
+                            switch (fourth) {
+                                case 62:
+                                case 31:
+                                    return false;
+                                default:
+                                    return true;
+                            }
+                        }
+                        else if (third === 27) {
+                            return true;
+                        }
+                        return false;
+                    });
+                    if (isArrowFunctionInJsx) {
+                        return 1;
+                    }
+                    return 0;
+                }
+                return 2;
+            }
+        }
+        function parsePossibleParenthesizedArrowFunctionExpressionHead() {
+            var tokenPos = scanner.getTokenPos();
+            if (notParenthesizedArrow && notParenthesizedArrow.has(tokenPos.toString())) {
+                return undefined;
+            }
+            var result = parseParenthesizedArrowFunctionExpressionHead(false);
+            if (!result) {
+                (notParenthesizedArrow || (notParenthesizedArrow = ts.createMap())).set(tokenPos.toString(), true);
+            }
+            return result;
+        }
+        function tryParseAsyncSimpleArrowFunctionExpression() {
+            if (token() === 126) {
+                if (lookAhead(isUnParenthesizedAsyncArrowFunctionWorker) === 1) {
+                    var asyncModifier = parseModifiersForArrowFunction();
+                    var expr = parseBinaryExpressionOrHigher(0);
+                    return parseSimpleArrowFunctionExpression(expr, asyncModifier);
+                }
+            }
+            return undefined;
+        }
+        function isUnParenthesizedAsyncArrowFunctionWorker() {
+            if (token() === 126) {
+                nextToken();
+                if (scanner.hasPrecedingLineBreak() || token() === 38) {
+                    return 0;
+                }
+                var expr = parseBinaryExpressionOrHigher(0);
+                if (!scanner.hasPrecedingLineBreak() && expr.kind === 75 && token() === 38) {
+                    return 1;
+                }
+            }
+            return 0;
+        }
+        function parseParenthesizedArrowFunctionExpressionHead(allowAmbiguity) {
+            var node = createNodeWithJSDoc(202);
+            node.modifiers = parseModifiersForArrowFunction();
+            var isAsync = hasModifierOfKind(node, 126) ? 2 : 0;
+            if (!fillSignature(58, isAsync, node) && !allowAmbiguity) {
+                return undefined;
+            }
+            var hasJSDocFunctionType = node.type && ts.isJSDocFunctionType(node.type);
+            if (!allowAmbiguity && token() !== 38 && (hasJSDocFunctionType || token() !== 18)) {
+                return undefined;
+            }
+            return node;
+        }
+        function parseArrowFunctionExpressionBody(isAsync) {
+            if (token() === 18) {
+                return parseFunctionBlock(isAsync ? 2 : 0);
+            }
+            if (token() !== 26 &&
+                token() !== 94 &&
+                token() !== 80 &&
+                isStartOfStatement() &&
+                !isStartOfExpressionStatement()) {
+                return parseFunctionBlock(16 | (isAsync ? 2 : 0));
+            }
+            return isAsync
+                ? doInAwaitContext(parseAssignmentExpressionOrHigher)
+                : doOutsideOfAwaitContext(parseAssignmentExpressionOrHigher);
+        }
+        function parseConditionalExpressionRest(leftOperand) {
+            var questionToken = parseOptionalToken(57);
+            if (!questionToken) {
+                return leftOperand;
+            }
+            var node = createNode(210, leftOperand.pos);
+            node.condition = leftOperand;
+            node.questionToken = questionToken;
+            node.whenTrue = doOutsideOfContext(disallowInAndDecoratorContext, parseAssignmentExpressionOrHigher);
+            node.colonToken = parseExpectedToken(58);
+            node.whenFalse = ts.nodeIsPresent(node.colonToken)
+                ? parseAssignmentExpressionOrHigher()
+                : createMissingNode(75, false, ts.Diagnostics._0_expected, ts.tokenToString(58));
+            return finishNode(node);
+        }
+        function parseBinaryExpressionOrHigher(precedence) {
+            var leftOperand = parseUnaryExpressionOrHigher();
+            return parseBinaryExpressionRest(precedence, leftOperand);
+        }
+        function isInOrOfKeyword(t) {
+            return t === 97 || t === 152;
+        }
+        function parseBinaryExpressionRest(precedence, leftOperand) {
+            while (true) {
+                reScanGreaterToken();
+                var newPrecedence = ts.getBinaryOperatorPrecedence(token());
+                var consumeCurrentOperator = token() === 42 ?
+                    newPrecedence >= precedence :
+                    newPrecedence > precedence;
+                if (!consumeCurrentOperator) {
+                    break;
+                }
+                if (token() === 97 && inDisallowInContext()) {
+                    break;
+                }
+                if (token() === 123) {
+                    if (scanner.hasPrecedingLineBreak()) {
+                        break;
+                    }
+                    else {
+                        nextToken();
+                        leftOperand = makeAsExpression(leftOperand, parseType());
+                    }
+                }
+                else {
+                    leftOperand = makeBinaryExpression(leftOperand, parseTokenNode(), parseBinaryExpressionOrHigher(newPrecedence));
+                }
+            }
+            return leftOperand;
+        }
+        function isBinaryOperator() {
+            if (inDisallowInContext() && token() === 97) {
+                return false;
+            }
+            return ts.getBinaryOperatorPrecedence(token()) > 0;
+        }
+        function makeBinaryExpression(left, operatorToken, right) {
+            var node = createNode(209, left.pos);
+            node.left = left;
+            node.operatorToken = operatorToken;
+            node.right = right;
+            return finishNode(node);
+        }
+        function makeAsExpression(left, right) {
+            var node = createNode(217, left.pos);
+            node.expression = left;
+            node.type = right;
+            return finishNode(node);
+        }
+        function parsePrefixUnaryExpression() {
+            var node = createNode(207);
+            node.operator = token();
+            nextToken();
+            node.operand = parseSimpleUnaryExpression();
+            return finishNode(node);
+        }
+        function parseDeleteExpression() {
+            var node = createNode(203);
+            nextToken();
+            node.expression = parseSimpleUnaryExpression();
+            return finishNode(node);
+        }
+        function parseTypeOfExpression() {
+            var node = createNode(204);
+            nextToken();
+            node.expression = parseSimpleUnaryExpression();
+            return finishNode(node);
+        }
+        function parseVoidExpression() {
+            var node = createNode(205);
+            nextToken();
+            node.expression = parseSimpleUnaryExpression();
+            return finishNode(node);
+        }
+        function isAwaitExpression() {
+            if (token() === 127) {
+                if (inAwaitContext()) {
+                    return true;
+                }
+                return lookAhead(nextTokenIsIdentifierOrKeywordOrLiteralOnSameLine);
+            }
+            return false;
+        }
+        function parseAwaitExpression() {
+            var node = createNode(206);
+            nextToken();
+            node.expression = parseSimpleUnaryExpression();
+            return finishNode(node);
+        }
+        function parseUnaryExpressionOrHigher() {
+            if (isUpdateExpression()) {
+                var updateExpression = parseUpdateExpression();
+                return token() === 42 ?
+                    parseBinaryExpressionRest(ts.getBinaryOperatorPrecedence(token()), updateExpression) :
+                    updateExpression;
+            }
+            var unaryOperator = token();
+            var simpleUnaryExpression = parseSimpleUnaryExpression();
+            if (token() === 42) {
+                var pos = ts.skipTrivia(sourceText, simpleUnaryExpression.pos);
+                var end = simpleUnaryExpression.end;
+                if (simpleUnaryExpression.kind === 199) {
+                    parseErrorAt(pos, end, ts.Diagnostics.A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses);
+                }
+                else {
+                    parseErrorAt(pos, end, ts.Diagnostics.An_unary_expression_with_the_0_operator_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses, ts.tokenToString(unaryOperator));
+                }
+            }
+            return simpleUnaryExpression;
+        }
+        function parseSimpleUnaryExpression() {
+            switch (token()) {
+                case 39:
+                case 40:
+                case 54:
+                case 53:
+                    return parsePrefixUnaryExpression();
+                case 85:
+                    return parseDeleteExpression();
+                case 108:
+                    return parseTypeOfExpression();
+                case 110:
+                    return parseVoidExpression();
+                case 29:
+                    return parseTypeAssertion();
+                case 127:
+                    if (isAwaitExpression()) {
+                        return parseAwaitExpression();
+                    }
+                default:
+                    return parseUpdateExpression();
+            }
+        }
+        function isUpdateExpression() {
+            switch (token()) {
+                case 39:
+                case 40:
+                case 54:
+                case 53:
+                case 85:
+                case 108:
+                case 110:
+                case 127:
+                    return false;
+                case 29:
+                    if (sourceFile.languageVariant !== 1) {
+                        return false;
+                    }
+                default:
+                    return true;
+            }
+        }
+        function parseUpdateExpression() {
+            if (token() === 45 || token() === 46) {
+                var node = createNode(207);
+                node.operator = token();
+                nextToken();
+                node.operand = parseLeftHandSideExpressionOrHigher();
+                return finishNode(node);
+            }
+            else if (sourceFile.languageVariant === 1 && token() === 29 && lookAhead(nextTokenIsIdentifierOrKeywordOrGreaterThan)) {
+                return parseJsxElementOrSelfClosingElementOrFragment(true);
+            }
+            var expression = parseLeftHandSideExpressionOrHigher();
+            ts.Debug.assert(ts.isLeftHandSideExpression(expression));
+            if ((token() === 45 || token() === 46) && !scanner.hasPrecedingLineBreak()) {
+                var node = createNode(208, expression.pos);
+                node.operand = expression;
+                node.operator = token();
+                nextToken();
+                return finishNode(node);
+            }
+            return expression;
+        }
+        function parseLeftHandSideExpressionOrHigher() {
+            var expression;
+            if (token() === 96) {
+                if (lookAhead(nextTokenIsOpenParenOrLessThan)) {
+                    sourceFile.flags |= 1048576;
+                    expression = parseTokenNode();
+                }
+                else if (lookAhead(nextTokenIsDot)) {
+                    var fullStart = scanner.getStartPos();
+                    nextToken();
+                    nextToken();
+                    var node = createNode(219, fullStart);
+                    node.keywordToken = 96;
+                    node.name = parseIdentifierName();
+                    expression = finishNode(node);
+                    sourceFile.flags |= 2097152;
+                }
+                else {
+                    expression = parseMemberExpressionOrHigher();
+                }
+            }
+            else {
+                expression = token() === 102 ? parseSuperExpression() : parseMemberExpressionOrHigher();
+            }
+            return parseCallExpressionRest(expression);
+        }
+        function parseMemberExpressionOrHigher() {
+            var expression = parsePrimaryExpression();
+            return parseMemberExpressionRest(expression, true);
+        }
+        function parseSuperExpression() {
+            var expression = parseTokenNode();
+            if (token() === 29) {
+                var startPos = getNodePos();
+                var typeArguments = tryParse(parseTypeArgumentsInExpression);
+                if (typeArguments !== undefined) {
+                    parseErrorAt(startPos, getNodePos(), ts.Diagnostics.super_may_not_use_type_arguments);
+                }
+            }
+            if (token() === 20 || token() === 24 || token() === 22) {
+                return expression;
+            }
+            var node = createNode(194, expression.pos);
+            node.expression = expression;
+            parseExpectedToken(24, ts.Diagnostics.super_must_be_followed_by_an_argument_list_or_member_access);
+            node.name = parseRightSideOfDot(true, true);
+            return finishNode(node);
+        }
+        function parseJsxElementOrSelfClosingElementOrFragment(inExpressionContext) {
+            var opening = parseJsxOpeningOrSelfClosingElementOrOpeningFragment(inExpressionContext);
+            var result;
+            if (opening.kind === 268) {
+                var node = createNode(266, opening.pos);
+                node.openingElement = opening;
+                node.children = parseJsxChildren(node.openingElement);
+                node.closingElement = parseJsxClosingElement(inExpressionContext);
+                if (!tagNamesAreEquivalent(node.openingElement.tagName, node.closingElement.tagName)) {
+                    parseErrorAtRange(node.closingElement, ts.Diagnostics.Expected_corresponding_JSX_closing_tag_for_0, ts.getTextOfNodeFromSourceText(sourceText, node.openingElement.tagName));
+                }
+                result = finishNode(node);
+            }
+            else if (opening.kind === 271) {
+                var node = createNode(270, opening.pos);
+                node.openingFragment = opening;
+                node.children = parseJsxChildren(node.openingFragment);
+                node.closingFragment = parseJsxClosingFragment(inExpressionContext);
+                result = finishNode(node);
+            }
+            else {
+                ts.Debug.assert(opening.kind === 267);
+                result = opening;
+            }
+            if (inExpressionContext && token() === 29) {
+                var invalidElement = tryParse(function () { return parseJsxElementOrSelfClosingElementOrFragment(true); });
+                if (invalidElement) {
+                    parseErrorAtCurrentToken(ts.Diagnostics.JSX_expressions_must_have_one_parent_element);
+                    var badNode = createNode(209, result.pos);
+                    badNode.end = invalidElement.end;
+                    badNode.left = result;
+                    badNode.right = invalidElement;
+                    badNode.operatorToken = createMissingNode(27, false);
+                    badNode.operatorToken.pos = badNode.operatorToken.end = badNode.right.pos;
+                    return badNode;
+                }
+            }
+            return result;
+        }
+        function parseJsxText() {
+            var node = createNode(11);
+            node.text = scanner.getTokenValue();
+            node.containsOnlyTriviaWhiteSpaces = currentToken === 12;
+            currentToken = scanner.scanJsxToken();
+            return finishNode(node);
+        }
+        function parseJsxChild(openingTag, token) {
+            switch (token) {
+                case 1:
+                    if (ts.isJsxOpeningFragment(openingTag)) {
+                        parseErrorAtRange(openingTag, ts.Diagnostics.JSX_fragment_has_no_corresponding_closing_tag);
+                    }
+                    else {
+                        var tag = openingTag.tagName;
+                        var start = ts.skipTrivia(sourceText, tag.pos);
+                        parseErrorAt(start, tag.end, ts.Diagnostics.JSX_element_0_has_no_corresponding_closing_tag, ts.getTextOfNodeFromSourceText(sourceText, openingTag.tagName));
+                    }
+                    return undefined;
+                case 30:
+                case 7:
+                    return undefined;
+                case 11:
+                case 12:
+                    return parseJsxText();
+                case 18:
+                    return parseJsxExpression(false);
+                case 29:
+                    return parseJsxElementOrSelfClosingElementOrFragment(false);
+                default:
+                    return ts.Debug.assertNever(token);
+            }
+        }
+        function parseJsxChildren(openingTag) {
+            var list = [];
+            var listPos = getNodePos();
+            var saveParsingContext = parsingContext;
+            parsingContext |= 1 << 14;
+            while (true) {
+                var child = parseJsxChild(openingTag, currentToken = scanner.reScanJsxToken());
+                if (!child)
+                    break;
+                list.push(child);
+            }
+            parsingContext = saveParsingContext;
+            return createNodeArray(list, listPos);
+        }
+        function parseJsxAttributes() {
+            var jsxAttributes = createNode(274);
+            jsxAttributes.properties = parseList(13, parseJsxAttribute);
+            return finishNode(jsxAttributes);
+        }
+        function parseJsxOpeningOrSelfClosingElementOrOpeningFragment(inExpressionContext) {
+            var fullStart = scanner.getStartPos();
+            parseExpected(29);
+            if (token() === 31) {
+                var node_1 = createNode(271, fullStart);
+                scanJsxText();
+                return finishNode(node_1);
+            }
+            var tagName = parseJsxElementName();
+            var typeArguments = tryParseTypeArguments();
+            var attributes = parseJsxAttributes();
+            var node;
+            if (token() === 31) {
+                node = createNode(268, fullStart);
+                scanJsxText();
+            }
+            else {
+                parseExpected(43);
+                if (inExpressionContext) {
+                    parseExpected(31);
+                }
+                else {
+                    parseExpected(31, undefined, false);
+                    scanJsxText();
+                }
+                node = createNode(267, fullStart);
+            }
+            node.tagName = tagName;
+            node.typeArguments = typeArguments;
+            node.attributes = attributes;
+            return finishNode(node);
+        }
+        function parseJsxElementName() {
+            scanJsxIdentifier();
+            var expression = token() === 104 ?
+                parseTokenNode() : parseIdentifierName();
+            while (parseOptional(24)) {
+                var propertyAccess = createNode(194, expression.pos);
+                propertyAccess.expression = expression;
+                propertyAccess.name = parseRightSideOfDot(true, false);
+                expression = finishNode(propertyAccess);
+            }
+            return expression;
+        }
+        function parseJsxExpression(inExpressionContext) {
+            var node = createNode(276);
+            if (!parseExpected(18)) {
+                return undefined;
+            }
+            if (token() !== 19) {
+                node.dotDotDotToken = parseOptionalToken(25);
+                node.expression = parseExpression();
+            }
+            if (inExpressionContext) {
+                parseExpected(19);
+            }
+            else {
+                if (parseExpected(19, undefined, false)) {
+                    scanJsxText();
+                }
+            }
+            return finishNode(node);
+        }
+        function parseJsxAttribute() {
+            if (token() === 18) {
+                return parseJsxSpreadAttribute();
+            }
+            scanJsxIdentifier();
+            var node = createNode(273);
+            node.name = parseIdentifierName();
+            if (token() === 62) {
+                switch (scanJsxAttributeValue()) {
+                    case 10:
+                        node.initializer = parseLiteralNode();
+                        break;
+                    default:
+                        node.initializer = parseJsxExpression(true);
+                        break;
+                }
+            }
+            return finishNode(node);
+        }
+        function parseJsxSpreadAttribute() {
+            var node = createNode(275);
+            parseExpected(18);
+            parseExpected(25);
+            node.expression = parseExpression();
+            parseExpected(19);
+            return finishNode(node);
+        }
+        function parseJsxClosingElement(inExpressionContext) {
+            var node = createNode(269);
+            parseExpected(30);
+            node.tagName = parseJsxElementName();
+            if (inExpressionContext) {
+                parseExpected(31);
+            }
+            else {
+                parseExpected(31, undefined, false);
+                scanJsxText();
+            }
+            return finishNode(node);
+        }
+        function parseJsxClosingFragment(inExpressionContext) {
+            var node = createNode(272);
+            parseExpected(30);
+            if (ts.tokenIsIdentifierOrKeyword(token())) {
+                parseErrorAtRange(parseJsxElementName(), ts.Diagnostics.Expected_corresponding_closing_tag_for_JSX_fragment);
+            }
+            if (inExpressionContext) {
+                parseExpected(31);
+            }
+            else {
+                parseExpected(31, undefined, false);
+                scanJsxText();
+            }
+            return finishNode(node);
+        }
+        function parseTypeAssertion() {
+            var node = createNode(199);
+            parseExpected(29);
+            node.type = parseType();
+            parseExpected(31);
+            node.expression = parseSimpleUnaryExpression();
+            return finishNode(node);
+        }
+        function nextTokenIsIdentifierOrKeywordOrOpenBracketOrTemplate() {
+            nextToken();
+            return ts.tokenIsIdentifierOrKeyword(token())
+                || token() === 22
+                || isTemplateStartOfTaggedTemplate();
+        }
+        function isStartOfOptionalPropertyOrElementAccessChain() {
+            return token() === 28
+                && lookAhead(nextTokenIsIdentifierOrKeywordOrOpenBracketOrTemplate);
+        }
+        function tryReparseOptionalChain(node) {
+            if (node.flags & 32) {
+                return true;
+            }
+            if (ts.isNonNullExpression(node)) {
+                var expr = node.expression;
+                while (ts.isNonNullExpression(expr) && !(expr.flags & 32)) {
+                    expr = expr.expression;
+                }
+                if (expr.flags & 32) {
+                    while (ts.isNonNullExpression(node)) {
+                        node.flags |= 32;
+                        node = node.expression;
+                    }
+                    return true;
+                }
+            }
+            return false;
+        }
+        function parsePropertyAccessExpressionRest(expression, questionDotToken) {
+            var propertyAccess = createNode(194, expression.pos);
+            propertyAccess.expression = expression;
+            propertyAccess.questionDotToken = questionDotToken;
+            propertyAccess.name = parseRightSideOfDot(true, true);
+            if (questionDotToken || tryReparseOptionalChain(expression)) {
+                propertyAccess.flags |= 32;
+                if (ts.isPrivateIdentifier(propertyAccess.name)) {
+                    parseErrorAtRange(propertyAccess.name, ts.Diagnostics.An_optional_chain_cannot_contain_private_identifiers);
+                }
+            }
+            return finishNode(propertyAccess);
+        }
+        function parseElementAccessExpressionRest(expression, questionDotToken) {
+            var indexedAccess = createNode(195, expression.pos);
+            indexedAccess.expression = expression;
+            indexedAccess.questionDotToken = questionDotToken;
+            if (token() === 23) {
+                indexedAccess.argumentExpression = createMissingNode(75, true, ts.Diagnostics.An_element_access_expression_should_take_an_argument);
+            }
+            else {
+                var argument = allowInAnd(parseExpression);
+                if (ts.isStringOrNumericLiteralLike(argument)) {
+                    argument.text = internIdentifier(argument.text);
+                }
+                indexedAccess.argumentExpression = argument;
+            }
+            parseExpected(23);
+            if (questionDotToken || tryReparseOptionalChain(expression)) {
+                indexedAccess.flags |= 32;
+            }
+            return finishNode(indexedAccess);
+        }
+        function parseMemberExpressionRest(expression, allowOptionalChain) {
+            while (true) {
+                var questionDotToken = void 0;
+                var isPropertyAccess = false;
+                if (allowOptionalChain && isStartOfOptionalPropertyOrElementAccessChain()) {
+                    questionDotToken = parseExpectedToken(28);
+                    isPropertyAccess = ts.tokenIsIdentifierOrKeyword(token());
+                }
+                else {
+                    isPropertyAccess = parseOptional(24);
+                }
+                if (isPropertyAccess) {
+                    expression = parsePropertyAccessExpressionRest(expression, questionDotToken);
+                    continue;
+                }
+                if (!questionDotToken && token() === 53 && !scanner.hasPrecedingLineBreak()) {
+                    nextToken();
+                    var nonNullExpression = createNode(218, expression.pos);
+                    nonNullExpression.expression = expression;
+                    expression = finishNode(nonNullExpression);
+                    continue;
+                }
+                if ((questionDotToken || !inDecoratorContext()) && parseOptional(22)) {
+                    expression = parseElementAccessExpressionRest(expression, questionDotToken);
+                    continue;
+                }
+                if (isTemplateStartOfTaggedTemplate()) {
+                    expression = parseTaggedTemplateRest(expression, questionDotToken, undefined);
+                    continue;
+                }
+                return expression;
+            }
+        }
+        function isTemplateStartOfTaggedTemplate() {
+            return token() === 14 || token() === 15;
+        }
+        function parseTaggedTemplateRest(tag, questionDotToken, typeArguments) {
+            var tagExpression = createNode(198, tag.pos);
+            tagExpression.tag = tag;
+            tagExpression.questionDotToken = questionDotToken;
+            tagExpression.typeArguments = typeArguments;
+            tagExpression.template = token() === 14
+                ? (reScanTemplateHeadOrNoSubstitutionTemplate(), parseLiteralNode())
+                : parseTemplateExpression(true);
+            if (questionDotToken || tag.flags & 32) {
+                tagExpression.flags |= 32;
+            }
+            return finishNode(tagExpression);
+        }
+        function parseCallExpressionRest(expression) {
+            while (true) {
+                expression = parseMemberExpressionRest(expression, true);
+                var questionDotToken = parseOptionalToken(28);
+                if (token() === 29 || token() === 47) {
+                    var typeArguments = tryParse(parseTypeArgumentsInExpression);
+                    if (typeArguments) {
+                        if (isTemplateStartOfTaggedTemplate()) {
+                            expression = parseTaggedTemplateRest(expression, questionDotToken, typeArguments);
+                            continue;
+                        }
+                        var callExpr = createNode(196, expression.pos);
+                        callExpr.expression = expression;
+                        callExpr.questionDotToken = questionDotToken;
+                        callExpr.typeArguments = typeArguments;
+                        callExpr.arguments = parseArgumentList();
+                        if (questionDotToken || tryReparseOptionalChain(expression)) {
+                            callExpr.flags |= 32;
+                        }
+                        expression = finishNode(callExpr);
+                        continue;
+                    }
+                }
+                else if (token() === 20) {
+                    var callExpr = createNode(196, expression.pos);
+                    callExpr.expression = expression;
+                    callExpr.questionDotToken = questionDotToken;
+                    callExpr.arguments = parseArgumentList();
+                    if (questionDotToken || tryReparseOptionalChain(expression)) {
+                        callExpr.flags |= 32;
+                    }
+                    expression = finishNode(callExpr);
+                    continue;
+                }
+                if (questionDotToken) {
+                    var propertyAccess = createNode(194, expression.pos);
+                    propertyAccess.expression = expression;
+                    propertyAccess.questionDotToken = questionDotToken;
+                    propertyAccess.name = createMissingNode(75, false, ts.Diagnostics.Identifier_expected);
+                    propertyAccess.flags |= 32;
+                    expression = finishNode(propertyAccess);
+                }
+                break;
+            }
+            return expression;
+        }
+        function parseArgumentList() {
+            parseExpected(20);
+            var result = parseDelimitedList(11, parseArgumentExpression);
+            parseExpected(21);
+            return result;
+        }
+        function parseTypeArgumentsInExpression() {
+            if (reScanLessThanToken() !== 29) {
+                return undefined;
+            }
+            nextToken();
+            var typeArguments = parseDelimitedList(20, parseType);
+            if (!parseExpected(31)) {
+                return undefined;
+            }
+            return typeArguments && canFollowTypeArgumentsInExpression()
+                ? typeArguments
+                : undefined;
+        }
+        function canFollowTypeArgumentsInExpression() {
+            switch (token()) {
+                case 20:
+                case 14:
+                case 15:
+                case 24:
+                case 21:
+                case 23:
+                case 58:
+                case 26:
+                case 57:
+                case 34:
+                case 36:
+                case 35:
+                case 37:
+                case 55:
+                case 56:
+                case 60:
+                case 52:
+                case 50:
+                case 51:
+                case 19:
+                case 1:
+                    return true;
+                case 27:
+                case 18:
+                default:
+                    return false;
+            }
+        }
+        function parsePrimaryExpression() {
+            switch (token()) {
+                case 8:
+                case 9:
+                case 10:
+                case 14:
+                    return parseLiteralNode();
+                case 104:
+                case 102:
+                case 100:
+                case 106:
+                case 91:
+                    return parseTokenNode();
+                case 20:
+                    return parseParenthesizedExpression();
+                case 22:
+                    return parseArrayLiteralExpression();
+                case 18:
+                    return parseObjectLiteralExpression();
+                case 126:
+                    if (!lookAhead(nextTokenIsFunctionKeywordOnSameLine)) {
+                        break;
+                    }
+                    return parseFunctionExpression();
+                case 80:
+                    return parseClassExpression();
+                case 94:
+                    return parseFunctionExpression();
+                case 99:
+                    return parseNewExpressionOrNewDotTarget();
+                case 43:
+                case 67:
+                    if (reScanSlashToken() === 13) {
+                        return parseLiteralNode();
+                    }
+                    break;
+                case 15:
+                    return parseTemplateExpression(false);
+            }
+            return parseIdentifier(ts.Diagnostics.Expression_expected);
+        }
+        function parseParenthesizedExpression() {
+            var node = createNodeWithJSDoc(200);
+            parseExpected(20);
+            node.expression = allowInAnd(parseExpression);
+            parseExpected(21);
+            return finishNode(node);
+        }
+        function parseSpreadElement() {
+            var node = createNode(213);
+            parseExpected(25);
+            node.expression = parseAssignmentExpressionOrHigher();
+            return finishNode(node);
+        }
+        function parseArgumentOrArrayLiteralElement() {
+            return token() === 25 ? parseSpreadElement() :
+                token() === 27 ? createNode(215) :
+                    parseAssignmentExpressionOrHigher();
+        }
+        function parseArgumentExpression() {
+            return doOutsideOfContext(disallowInAndDecoratorContext, parseArgumentOrArrayLiteralElement);
+        }
+        function parseArrayLiteralExpression() {
+            var node = createNode(192);
+            parseExpected(22);
+            if (scanner.hasPrecedingLineBreak()) {
+                node.multiLine = true;
+            }
+            node.elements = parseDelimitedList(15, parseArgumentOrArrayLiteralElement);
+            parseExpected(23);
+            return finishNode(node);
+        }
+        function parseObjectLiteralElement() {
+            var node = createNodeWithJSDoc(0);
+            if (parseOptionalToken(25)) {
+                node.kind = 283;
+                node.expression = parseAssignmentExpressionOrHigher();
+                return finishNode(node);
+            }
+            node.decorators = parseDecorators();
+            node.modifiers = parseModifiers();
+            if (parseContextualModifier(131)) {
+                return parseAccessorDeclaration(node, 163);
+            }
+            if (parseContextualModifier(142)) {
+                return parseAccessorDeclaration(node, 164);
+            }
+            var asteriskToken = parseOptionalToken(41);
+            var tokenIsIdentifier = isIdentifier();
+            node.name = parsePropertyName();
+            node.questionToken = parseOptionalToken(57);
+            node.exclamationToken = parseOptionalToken(53);
+            if (asteriskToken || token() === 20 || token() === 29) {
+                return parseMethodDeclaration(node, asteriskToken);
+            }
+            var isShorthandPropertyAssignment = tokenIsIdentifier && (token() !== 58);
+            if (isShorthandPropertyAssignment) {
+                node.kind = 282;
+                var equalsToken = parseOptionalToken(62);
+                if (equalsToken) {
+                    node.equalsToken = equalsToken;
+                    node.objectAssignmentInitializer = allowInAnd(parseAssignmentExpressionOrHigher);
+                }
+            }
+            else {
+                node.kind = 281;
+                parseExpected(58);
+                node.initializer = allowInAnd(parseAssignmentExpressionOrHigher);
+            }
+            return finishNode(node);
+        }
+        function parseObjectLiteralExpression() {
+            var node = createNode(193);
+            var openBracePosition = scanner.getTokenPos();
+            parseExpected(18);
+            if (scanner.hasPrecedingLineBreak()) {
+                node.multiLine = true;
+            }
+            node.properties = parseDelimitedList(12, parseObjectLiteralElement, true);
+            if (!parseExpected(19)) {
+                var lastError = ts.lastOrUndefined(parseDiagnostics);
+                if (lastError && lastError.code === ts.Diagnostics._0_expected.code) {
+                    ts.addRelatedInfo(lastError, ts.createFileDiagnostic(sourceFile, openBracePosition, 1, ts.Diagnostics.The_parser_expected_to_find_a_to_match_the_token_here));
+                }
+            }
+            return finishNode(node);
+        }
+        function parseFunctionExpression() {
+            var saveDecoratorContext = inDecoratorContext();
+            if (saveDecoratorContext) {
+                setDecoratorContext(false);
+            }
+            var node = createNodeWithJSDoc(201);
+            node.modifiers = parseModifiers();
+            parseExpected(94);
+            node.asteriskToken = parseOptionalToken(41);
+            var isGenerator = node.asteriskToken ? 1 : 0;
+            var isAsync = hasModifierOfKind(node, 126) ? 2 : 0;
+            node.name =
+                isGenerator && isAsync ? doInYieldAndAwaitContext(parseOptionalIdentifier) :
+                    isGenerator ? doInYieldContext(parseOptionalIdentifier) :
+                        isAsync ? doInAwaitContext(parseOptionalIdentifier) :
+                            parseOptionalIdentifier();
+            fillSignature(58, isGenerator | isAsync, node);
+            node.body = parseFunctionBlock(isGenerator | isAsync);
+            if (saveDecoratorContext) {
+                setDecoratorContext(true);
+            }
+            return finishNode(node);
+        }
+        function parseOptionalIdentifier() {
+            return isIdentifier() ? parseIdentifier() : undefined;
+        }
+        function parseNewExpressionOrNewDotTarget() {
+            var fullStart = scanner.getStartPos();
+            parseExpected(99);
+            if (parseOptional(24)) {
+                var node_2 = createNode(219, fullStart);
+                node_2.keywordToken = 99;
+                node_2.name = parseIdentifierName();
+                return finishNode(node_2);
+            }
+            var expression = parsePrimaryExpression();
+            var typeArguments;
+            while (true) {
+                expression = parseMemberExpressionRest(expression, false);
+                typeArguments = tryParse(parseTypeArgumentsInExpression);
+                if (isTemplateStartOfTaggedTemplate()) {
+                    ts.Debug.assert(!!typeArguments, "Expected a type argument list; all plain tagged template starts should be consumed in 'parseMemberExpressionRest'");
+                    expression = parseTaggedTemplateRest(expression, undefined, typeArguments);
+                    typeArguments = undefined;
+                }
+                break;
+            }
+            var node = createNode(197, fullStart);
+            node.expression = expression;
+            node.typeArguments = typeArguments;
+            if (token() === 20) {
+                node.arguments = parseArgumentList();
+            }
+            else if (node.typeArguments) {
+                parseErrorAt(fullStart, scanner.getStartPos(), ts.Diagnostics.A_new_expression_with_type_arguments_must_always_be_followed_by_a_parenthesized_argument_list);
+            }
+            return finishNode(node);
+        }
+        function parseBlock(ignoreMissingOpenBrace, diagnosticMessage) {
+            var node = createNode(223);
+            var openBracePosition = scanner.getTokenPos();
+            if (parseExpected(18, diagnosticMessage) || ignoreMissingOpenBrace) {
+                if (scanner.hasPrecedingLineBreak()) {
+                    node.multiLine = true;
+                }
+                node.statements = parseList(1, parseStatement);
+                if (!parseExpected(19)) {
+                    var lastError = ts.lastOrUndefined(parseDiagnostics);
+                    if (lastError && lastError.code === ts.Diagnostics._0_expected.code) {
+                        ts.addRelatedInfo(lastError, ts.createFileDiagnostic(sourceFile, openBracePosition, 1, ts.Diagnostics.The_parser_expected_to_find_a_to_match_the_token_here));
+                    }
+                }
+            }
+            else {
+                node.statements = createMissingList();
+            }
+            return finishNode(node);
+        }
+        function parseFunctionBlock(flags, diagnosticMessage) {
+            var savedYieldContext = inYieldContext();
+            setYieldContext(!!(flags & 1));
+            var savedAwaitContext = inAwaitContext();
+            setAwaitContext(!!(flags & 2));
+            var saveDecoratorContext = inDecoratorContext();
+            if (saveDecoratorContext) {
+                setDecoratorContext(false);
+            }
+            var block = parseBlock(!!(flags & 16), diagnosticMessage);
+            if (saveDecoratorContext) {
+                setDecoratorContext(true);
+            }
+            setYieldContext(savedYieldContext);
+            setAwaitContext(savedAwaitContext);
+            return block;
+        }
+        function parseEmptyStatement() {
+            var node = createNode(224);
+            parseExpected(26);
+            return finishNode(node);
+        }
+        function parseIfStatement() {
+            var node = createNode(227);
+            parseExpected(95);
+            parseExpected(20);
+            node.expression = allowInAnd(parseExpression);
+            parseExpected(21);
+            node.thenStatement = parseStatement();
+            node.elseStatement = parseOptional(87) ? parseStatement() : undefined;
+            return finishNode(node);
+        }
+        function parseDoStatement() {
+            var node = createNode(228);
+            parseExpected(86);
+            node.statement = parseStatement();
+            parseExpected(111);
+            parseExpected(20);
+            node.expression = allowInAnd(parseExpression);
+            parseExpected(21);
+            parseOptional(26);
+            return finishNode(node);
+        }
+        function parseWhileStatement() {
+            var node = createNode(229);
+            parseExpected(111);
+            parseExpected(20);
+            node.expression = allowInAnd(parseExpression);
+            parseExpected(21);
+            node.statement = parseStatement();
+            return finishNode(node);
+        }
+        function parseForOrForInOrForOfStatement() {
+            var pos = getNodePos();
+            parseExpected(93);
+            var awaitToken = parseOptionalToken(127);
+            parseExpected(20);
+            var initializer;
+            if (token() !== 26) {
+                if (token() === 109 || token() === 115 || token() === 81) {
+                    initializer = parseVariableDeclarationList(true);
+                }
+                else {
+                    initializer = disallowInAnd(parseExpression);
+                }
+            }
+            var forOrForInOrForOfStatement;
+            if (awaitToken ? parseExpected(152) : parseOptional(152)) {
+                var forOfStatement = createNode(232, pos);
+                forOfStatement.awaitModifier = awaitToken;
+                forOfStatement.initializer = initializer;
+                forOfStatement.expression = allowInAnd(parseAssignmentExpressionOrHigher);
+                parseExpected(21);
+                forOrForInOrForOfStatement = forOfStatement;
+            }
+            else if (parseOptional(97)) {
+                var forInStatement = createNode(231, pos);
+                forInStatement.initializer = initializer;
+                forInStatement.expression = allowInAnd(parseExpression);
+                parseExpected(21);
+                forOrForInOrForOfStatement = forInStatement;
+            }
+            else {
+                var forStatement = createNode(230, pos);
+                forStatement.initializer = initializer;
+                parseExpected(26);
+                if (token() !== 26 && token() !== 21) {
+                    forStatement.condition = allowInAnd(parseExpression);
+                }
+                parseExpected(26);
+                if (token() !== 21) {
+                    forStatement.incrementor = allowInAnd(parseExpression);
+                }
+                parseExpected(21);
+                forOrForInOrForOfStatement = forStatement;
+            }
+            forOrForInOrForOfStatement.statement = parseStatement();
+            return finishNode(forOrForInOrForOfStatement);
+        }
+        function parseBreakOrContinueStatement(kind) {
+            var node = createNode(kind);
+            parseExpected(kind === 234 ? 77 : 82);
+            if (!canParseSemicolon()) {
+                node.label = parseIdentifier();
+            }
+            parseSemicolon();
+            return finishNode(node);
+        }
+        function parseReturnStatement() {
+            var node = createNode(235);
+            parseExpected(101);
+            if (!canParseSemicolon()) {
+                node.expression = allowInAnd(parseExpression);
+            }
+            parseSemicolon();
+            return finishNode(node);
+        }
+        function parseWithStatement() {
+            var node = createNode(236);
+            parseExpected(112);
+            parseExpected(20);
+            node.expression = allowInAnd(parseExpression);
+            parseExpected(21);
+            node.statement = doInsideOfContext(16777216, parseStatement);
+            return finishNode(node);
+        }
+        function parseCaseClause() {
+            var node = createNode(277);
+            parseExpected(78);
+            node.expression = allowInAnd(parseExpression);
+            parseExpected(58);
+            node.statements = parseList(3, parseStatement);
+            return finishNode(node);
+        }
+        function parseDefaultClause() {
+            var node = createNode(278);
+            parseExpected(84);
+            parseExpected(58);
+            node.statements = parseList(3, parseStatement);
+            return finishNode(node);
+        }
+        function parseCaseOrDefaultClause() {
+            return token() === 78 ? parseCaseClause() : parseDefaultClause();
+        }
+        function parseSwitchStatement() {
+            var node = createNode(237);
+            parseExpected(103);
+            parseExpected(20);
+            node.expression = allowInAnd(parseExpression);
+            parseExpected(21);
+            var caseBlock = createNode(251);
+            parseExpected(18);
+            caseBlock.clauses = parseList(2, parseCaseOrDefaultClause);
+            parseExpected(19);
+            node.caseBlock = finishNode(caseBlock);
+            return finishNode(node);
+        }
+        function parseThrowStatement() {
+            var node = createNode(239);
+            parseExpected(105);
+            node.expression = scanner.hasPrecedingLineBreak() ? undefined : allowInAnd(parseExpression);
+            parseSemicolon();
+            return finishNode(node);
+        }
+        function parseTryStatement() {
+            var node = createNode(240);
+            parseExpected(107);
+            node.tryBlock = parseBlock(false);
+            node.catchClause = token() === 79 ? parseCatchClause() : undefined;
+            if (!node.catchClause || token() === 92) {
+                parseExpected(92);
+                node.finallyBlock = parseBlock(false);
+            }
+            return finishNode(node);
+        }
+        function parseCatchClause() {
+            var result = createNode(280);
+            parseExpected(79);
+            if (parseOptional(20)) {
+                result.variableDeclaration = parseVariableDeclaration();
+                parseExpected(21);
+            }
+            else {
+                result.variableDeclaration = undefined;
+            }
+            result.block = parseBlock(false);
+            return finishNode(result);
+        }
+        function parseDebuggerStatement() {
+            var node = createNode(241);
+            parseExpected(83);
+            parseSemicolon();
+            return finishNode(node);
+        }
+        function parseExpressionOrLabeledStatement() {
+            var node = createNodeWithJSDoc(token() === 75 ? 0 : 226);
+            var expression = allowInAnd(parseExpression);
+            if (expression.kind === 75 && parseOptional(58)) {
+                node.kind = 238;
+                node.label = expression;
+                node.statement = parseStatement();
+            }
+            else {
+                node.kind = 226;
+                node.expression = expression;
+                parseSemicolon();
+            }
+            return finishNode(node);
+        }
+        function nextTokenIsIdentifierOrKeywordOnSameLine() {
+            nextToken();
+            return ts.tokenIsIdentifierOrKeyword(token()) && !scanner.hasPrecedingLineBreak();
+        }
+        function nextTokenIsClassKeywordOnSameLine() {
+            nextToken();
+            return token() === 80 && !scanner.hasPrecedingLineBreak();
+        }
+        function nextTokenIsFunctionKeywordOnSameLine() {
+            nextToken();
+            return token() === 94 && !scanner.hasPrecedingLineBreak();
+        }
+        function nextTokenIsIdentifierOrKeywordOrLiteralOnSameLine() {
+            nextToken();
+            return (ts.tokenIsIdentifierOrKeyword(token()) || token() === 8 || token() === 9 || token() === 10) && !scanner.hasPrecedingLineBreak();
+        }
+        function isDeclaration() {
+            while (true) {
+                switch (token()) {
+                    case 109:
+                    case 115:
+                    case 81:
+                    case 94:
+                    case 80:
+                    case 88:
+                        return true;
+                    case 114:
+                    case 145:
+                        return nextTokenIsIdentifierOnSameLine();
+                    case 135:
+                    case 136:
+                        return nextTokenIsIdentifierOrStringLiteralOnSameLine();
+                    case 122:
+                    case 126:
+                    case 130:
+                    case 117:
+                    case 118:
+                    case 119:
+                    case 138:
+                        nextToken();
+                        if (scanner.hasPrecedingLineBreak()) {
+                            return false;
+                        }
+                        continue;
+                    case 150:
+                        nextToken();
+                        return token() === 18 || token() === 75 || token() === 89;
+                    case 96:
+                        nextToken();
+                        return token() === 10 || token() === 41 ||
+                            token() === 18 || ts.tokenIsIdentifierOrKeyword(token());
+                    case 89:
+                        var currentToken_1 = nextToken();
+                        if (currentToken_1 === 145) {
+                            currentToken_1 = lookAhead(nextToken);
+                        }
+                        if (currentToken_1 === 62 || currentToken_1 === 41 ||
+                            currentToken_1 === 18 || currentToken_1 === 84 ||
+                            currentToken_1 === 123) {
+                            return true;
+                        }
+                        continue;
+                    case 120:
+                        nextToken();
+                        continue;
+                    default:
+                        return false;
+                }
+            }
+        }
+        function isStartOfDeclaration() {
+            return lookAhead(isDeclaration);
+        }
+        function isStartOfStatement() {
+            switch (token()) {
+                case 59:
+                case 26:
+                case 18:
+                case 109:
+                case 115:
+                case 94:
+                case 80:
+                case 88:
+                case 95:
+                case 86:
+                case 111:
+                case 93:
+                case 82:
+                case 77:
+                case 101:
+                case 112:
+                case 103:
+                case 105:
+                case 107:
+                case 83:
+                case 79:
+                case 92:
+                    return true;
+                case 96:
+                    return isStartOfDeclaration() || lookAhead(nextTokenIsOpenParenOrLessThanOrDot);
+                case 81:
+                case 89:
+                    return isStartOfDeclaration();
+                case 126:
+                case 130:
+                case 114:
+                case 135:
+                case 136:
+                case 145:
+                case 150:
+                    return true;
+                case 119:
+                case 117:
+                case 118:
+                case 120:
+                case 138:
+                    return isStartOfDeclaration() || !lookAhead(nextTokenIsIdentifierOrKeywordOnSameLine);
+                default:
+                    return isStartOfExpression();
+            }
+        }
+        function nextTokenIsIdentifierOrStartOfDestructuring() {
+            nextToken();
+            return isIdentifier() || token() === 18 || token() === 22;
+        }
+        function isLetDeclaration() {
+            return lookAhead(nextTokenIsIdentifierOrStartOfDestructuring);
+        }
+        function parseStatement() {
+            switch (token()) {
+                case 26:
+                    return parseEmptyStatement();
+                case 18:
+                    return parseBlock(false);
+                case 109:
+                    return parseVariableStatement(createNodeWithJSDoc(242));
+                case 115:
+                    if (isLetDeclaration()) {
+                        return parseVariableStatement(createNodeWithJSDoc(242));
+                    }
+                    break;
+                case 94:
+                    return parseFunctionDeclaration(createNodeWithJSDoc(244));
+                case 80:
+                    return parseClassDeclaration(createNodeWithJSDoc(245));
+                case 95:
+                    return parseIfStatement();
+                case 86:
+                    return parseDoStatement();
+                case 111:
+                    return parseWhileStatement();
+                case 93:
+                    return parseForOrForInOrForOfStatement();
+                case 82:
+                    return parseBreakOrContinueStatement(233);
+                case 77:
+                    return parseBreakOrContinueStatement(234);
+                case 101:
+                    return parseReturnStatement();
+                case 112:
+                    return parseWithStatement();
+                case 103:
+                    return parseSwitchStatement();
+                case 105:
+                    return parseThrowStatement();
+                case 107:
+                case 79:
+                case 92:
+                    return parseTryStatement();
+                case 83:
+                    return parseDebuggerStatement();
+                case 59:
+                    return parseDeclaration();
+                case 126:
+                case 114:
+                case 145:
+                case 135:
+                case 136:
+                case 130:
+                case 81:
+                case 88:
+                case 89:
+                case 96:
+                case 117:
+                case 118:
+                case 119:
+                case 122:
+                case 120:
+                case 138:
+                case 150:
+                    if (isStartOfDeclaration()) {
+                        return parseDeclaration();
+                    }
+                    break;
+            }
+            return parseExpressionOrLabeledStatement();
+        }
+        function isDeclareModifier(modifier) {
+            return modifier.kind === 130;
+        }
+        function parseDeclaration() {
+            var modifiers = lookAhead(function () { return (parseDecorators(), parseModifiers()); });
+            var isAmbient = ts.some(modifiers, isDeclareModifier);
+            if (isAmbient) {
+                var node_3 = tryReuseAmbientDeclaration();
+                if (node_3) {
+                    return node_3;
+                }
+            }
+            var node = createNodeWithJSDoc(0);
+            node.decorators = parseDecorators();
+            node.modifiers = parseModifiers();
+            if (isAmbient) {
+                for (var _i = 0, _a = node.modifiers; _i < _a.length; _i++) {
+                    var m = _a[_i];
+                    m.flags |= 8388608;
+                }
+                return doInsideOfContext(8388608, function () { return parseDeclarationWorker(node); });
+            }
+            else {
+                return parseDeclarationWorker(node);
+            }
+        }
+        function tryReuseAmbientDeclaration() {
+            return doInsideOfContext(8388608, function () {
+                var node = currentNode(parsingContext);
+                if (node) {
+                    return consumeNode(node);
+                }
+            });
+        }
+        function parseDeclarationWorker(node) {
+            switch (token()) {
+                case 109:
+                case 115:
+                case 81:
+                    return parseVariableStatement(node);
+                case 94:
+                    return parseFunctionDeclaration(node);
+                case 80:
+                    return parseClassDeclaration(node);
+                case 114:
+                    return parseInterfaceDeclaration(node);
+                case 145:
+                    return parseTypeAliasDeclaration(node);
+                case 88:
+                    return parseEnumDeclaration(node);
+                case 150:
+                case 135:
+                case 136:
+                    return parseModuleDeclaration(node);
+                case 96:
+                    return parseImportDeclarationOrImportEqualsDeclaration(node);
+                case 89:
+                    nextToken();
+                    switch (token()) {
+                        case 84:
+                        case 62:
+                            return parseExportAssignment(node);
+                        case 123:
+                            return parseNamespaceExportDeclaration(node);
+                        default:
+                            return parseExportDeclaration(node);
+                    }
+                default:
+                    if (node.decorators || node.modifiers) {
+                        var missing = createMissingNode(264, true, ts.Diagnostics.Declaration_expected);
+                        missing.pos = node.pos;
+                        missing.decorators = node.decorators;
+                        missing.modifiers = node.modifiers;
+                        return finishNode(missing);
+                    }
+                    return undefined;
+            }
+        }
+        function nextTokenIsIdentifierOrStringLiteralOnSameLine() {
+            nextToken();
+            return !scanner.hasPrecedingLineBreak() && (isIdentifier() || token() === 10);
+        }
+        function parseFunctionBlockOrSemicolon(flags, diagnosticMessage) {
+            if (token() !== 18 && canParseSemicolon()) {
+                parseSemicolon();
+                return;
+            }
+            return parseFunctionBlock(flags, diagnosticMessage);
+        }
+        function parseArrayBindingElement() {
+            if (token() === 27) {
+                return createNode(215);
+            }
+            var node = createNode(191);
+            node.dotDotDotToken = parseOptionalToken(25);
+            node.name = parseIdentifierOrPattern();
+            node.initializer = parseInitializer();
+            return finishNode(node);
+        }
+        function parseObjectBindingElement() {
+            var node = createNode(191);
+            node.dotDotDotToken = parseOptionalToken(25);
+            var tokenIsIdentifier = isIdentifier();
+            var propertyName = parsePropertyName();
+            if (tokenIsIdentifier && token() !== 58) {
+                node.name = propertyName;
+            }
+            else {
+                parseExpected(58);
+                node.propertyName = propertyName;
+                node.name = parseIdentifierOrPattern();
+            }
+            node.initializer = parseInitializer();
+            return finishNode(node);
+        }
+        function parseObjectBindingPattern() {
+            var node = createNode(189);
+            parseExpected(18);
+            node.elements = parseDelimitedList(9, parseObjectBindingElement);
+            parseExpected(19);
+            return finishNode(node);
+        }
+        function parseArrayBindingPattern() {
+            var node = createNode(190);
+            parseExpected(22);
+            node.elements = parseDelimitedList(10, parseArrayBindingElement);
+            parseExpected(23);
+            return finishNode(node);
+        }
+        function isIdentifierOrPrivateIdentifierOrPattern() {
+            return token() === 18
+                || token() === 22
+                || token() === 76
+                || isIdentifier();
+        }
+        function parseIdentifierOrPattern(privateIdentifierDiagnosticMessage) {
+            if (token() === 22) {
+                return parseArrayBindingPattern();
+            }
+            if (token() === 18) {
+                return parseObjectBindingPattern();
+            }
+            return parseIdentifier(undefined, privateIdentifierDiagnosticMessage);
+        }
+        function parseVariableDeclarationAllowExclamation() {
+            return parseVariableDeclaration(true);
+        }
+        function parseVariableDeclaration(allowExclamation) {
+            var node = createNode(242);
+            node.name = parseIdentifierOrPattern(ts.Diagnostics.Private_identifiers_are_not_allowed_in_variable_declarations);
+            if (allowExclamation && node.name.kind === 75 &&
+                token() === 53 && !scanner.hasPrecedingLineBreak()) {
+                node.exclamationToken = parseTokenNode();
+            }
+            node.type = parseTypeAnnotation();
+            if (!isInOrOfKeyword(token())) {
+                node.initializer = parseInitializer();
+            }
+            return finishNode(node);
+        }
+        function parseVariableDeclarationList(inForStatementInitializer) {
+            var node = createNode(243);
+            switch (token()) {
+                case 109:
+                    break;
+                case 115:
+                    node.flags |= 1;
+                    break;
+                case 81:
+                    node.flags |= 2;
+                    break;
+                default:
+                    ts.Debug.fail();
+            }
+            nextToken();
+            if (token() === 152 && lookAhead(canFollowContextualOfKeyword)) {
+                node.declarations = createMissingList();
+            }
+            else {
+                var savedDisallowIn = inDisallowInContext();
+                setDisallowInContext(inForStatementInitializer);
+                node.declarations = parseDelimitedList(8, inForStatementInitializer ? parseVariableDeclaration : parseVariableDeclarationAllowExclamation);
+                setDisallowInContext(savedDisallowIn);
+            }
+            return finishNode(node);
+        }
+        function canFollowContextualOfKeyword() {
+            return nextTokenIsIdentifier() && nextToken() === 21;
+        }
+        function parseVariableStatement(node) {
+            node.kind = 225;
+            node.declarationList = parseVariableDeclarationList(false);
+            parseSemicolon();
+            return finishNode(node);
+        }
+        function parseFunctionDeclaration(node) {
+            node.kind = 244;
+            parseExpected(94);
+            node.asteriskToken = parseOptionalToken(41);
+            node.name = hasModifierOfKind(node, 84) ? parseOptionalIdentifier() : parseIdentifier();
+            var isGenerator = node.asteriskToken ? 1 : 0;
+            var isAsync = hasModifierOfKind(node, 126) ? 2 : 0;
+            fillSignature(58, isGenerator | isAsync, node);
+            node.body = parseFunctionBlockOrSemicolon(isGenerator | isAsync, ts.Diagnostics.or_expected);
+            return finishNode(node);
+        }
+        function parseConstructorName() {
+            if (token() === 129) {
+                return parseExpected(129);
+            }
+            if (token() === 10 && lookAhead(nextToken) === 20) {
+                return tryParse(function () {
+                    var literalNode = parseLiteralNode();
+                    return literalNode.text === "constructor" ? literalNode : undefined;
+                });
+            }
+        }
+        function tryParseConstructorDeclaration(node) {
+            return tryParse(function () {
+                if (parseConstructorName()) {
+                    node.kind = 162;
+                    fillSignature(58, 0, node);
+                    node.body = parseFunctionBlockOrSemicolon(0, ts.Diagnostics.or_expected);
+                    return finishNode(node);
+                }
+            });
+        }
+        function parseMethodDeclaration(node, asteriskToken, diagnosticMessage) {
+            node.kind = 161;
+            node.asteriskToken = asteriskToken;
+            var isGenerator = asteriskToken ? 1 : 0;
+            var isAsync = hasModifierOfKind(node, 126) ? 2 : 0;
+            fillSignature(58, isGenerator | isAsync, node);
+            node.body = parseFunctionBlockOrSemicolon(isGenerator | isAsync, diagnosticMessage);
+            return finishNode(node);
+        }
+        function parsePropertyDeclaration(node) {
+            node.kind = 159;
+            if (!node.questionToken && token() === 53 && !scanner.hasPrecedingLineBreak()) {
+                node.exclamationToken = parseTokenNode();
+            }
+            node.type = parseTypeAnnotation();
+            node.initializer = doOutsideOfContext(8192 | 32768 | 4096, parseInitializer);
+            parseSemicolon();
+            return finishNode(node);
+        }
+        function parsePropertyOrMethodDeclaration(node) {
+            var asteriskToken = parseOptionalToken(41);
+            node.name = parsePropertyName();
+            node.questionToken = parseOptionalToken(57);
+            if (asteriskToken || token() === 20 || token() === 29) {
+                return parseMethodDeclaration(node, asteriskToken, ts.Diagnostics.or_expected);
+            }
+            return parsePropertyDeclaration(node);
+        }
+        function parseAccessorDeclaration(node, kind) {
+            node.kind = kind;
+            node.name = parsePropertyName();
+            fillSignature(58, 0, node);
+            node.body = parseFunctionBlockOrSemicolon(0);
+            return finishNode(node);
+        }
+        function isClassMemberStart() {
+            var idToken;
+            if (token() === 59) {
+                return true;
+            }
+            while (ts.isModifierKind(token())) {
+                idToken = token();
+                if (ts.isClassMemberModifier(idToken)) {
+                    return true;
+                }
+                nextToken();
+            }
+            if (token() === 41) {
+                return true;
+            }
+            if (isLiteralPropertyName()) {
+                idToken = token();
+                nextToken();
+            }
+            if (token() === 22) {
+                return true;
+            }
+            if (idToken !== undefined) {
+                if (!ts.isKeyword(idToken) || idToken === 142 || idToken === 131) {
+                    return true;
+                }
+                switch (token()) {
+                    case 20:
+                    case 29:
+                    case 53:
+                    case 58:
+                    case 62:
+                    case 57:
+                        return true;
+                    default:
+                        return canParseSemicolon();
+                }
+            }
+            return false;
+        }
+        function parseDecorators() {
+            var list;
+            var listPos = getNodePos();
+            while (true) {
+                var decoratorStart = getNodePos();
+                if (!parseOptional(59)) {
+                    break;
+                }
+                var decorator = createNode(157, decoratorStart);
+                decorator.expression = doInDecoratorContext(parseLeftHandSideExpressionOrHigher);
+                finishNode(decorator);
+                (list || (list = [])).push(decorator);
+            }
+            return list && createNodeArray(list, listPos);
+        }
+        function parseModifiers(permitInvalidConstAsModifier) {
+            var list;
+            var listPos = getNodePos();
+            while (true) {
+                var modifierStart = scanner.getStartPos();
+                var modifierKind = token();
+                if (token() === 81 && permitInvalidConstAsModifier) {
+                    if (!tryParse(nextTokenIsOnSameLineAndCanFollowModifier)) {
+                        break;
+                    }
+                }
+                else {
+                    if (!parseAnyContextualModifier()) {
+                        break;
+                    }
+                }
+                var modifier = finishNode(createNode(modifierKind, modifierStart));
+                (list || (list = [])).push(modifier);
+            }
+            return list && createNodeArray(list, listPos);
+        }
+        function parseModifiersForArrowFunction() {
+            var modifiers;
+            if (token() === 126) {
+                var modifierStart = scanner.getStartPos();
+                var modifierKind = token();
+                nextToken();
+                var modifier = finishNode(createNode(modifierKind, modifierStart));
+                modifiers = createNodeArray([modifier], modifierStart);
+            }
+            return modifiers;
+        }
+        function parseClassElement() {
+            if (token() === 26) {
+                var result = createNode(222);
+                nextToken();
+                return finishNode(result);
+            }
+            var node = createNodeWithJSDoc(0);
+            node.decorators = parseDecorators();
+            node.modifiers = parseModifiers(true);
+            if (parseContextualModifier(131)) {
+                return parseAccessorDeclaration(node, 163);
+            }
+            if (parseContextualModifier(142)) {
+                return parseAccessorDeclaration(node, 164);
+            }
+            if (token() === 129 || token() === 10) {
+                var constructorDeclaration = tryParseConstructorDeclaration(node);
+                if (constructorDeclaration) {
+                    return constructorDeclaration;
+                }
+            }
+            if (isIndexSignature()) {
+                return parseIndexSignatureDeclaration(node);
+            }
+            if (ts.tokenIsIdentifierOrKeyword(token()) ||
+                token() === 10 ||
+                token() === 8 ||
+                token() === 41 ||
+                token() === 22) {
+                var isAmbient = node.modifiers && ts.some(node.modifiers, isDeclareModifier);
+                if (isAmbient) {
+                    for (var _i = 0, _a = node.modifiers; _i < _a.length; _i++) {
+                        var m = _a[_i];
+                        m.flags |= 8388608;
+                    }
+                    return doInsideOfContext(8388608, function () { return parsePropertyOrMethodDeclaration(node); });
+                }
+                else {
+                    return parsePropertyOrMethodDeclaration(node);
+                }
+            }
+            if (node.decorators || node.modifiers) {
+                node.name = createMissingNode(75, true, ts.Diagnostics.Declaration_expected);
+                return parsePropertyDeclaration(node);
+            }
+            return ts.Debug.fail("Should not have attempted to parse class member declaration.");
+        }
+        function parseClassExpression() {
+            return parseClassDeclarationOrExpression(createNodeWithJSDoc(0), 214);
+        }
+        function parseClassDeclaration(node) {
+            return parseClassDeclarationOrExpression(node, 245);
+        }
+        function parseClassDeclarationOrExpression(node, kind) {
+            node.kind = kind;
+            parseExpected(80);
+            node.name = parseNameOfClassDeclarationOrExpression();
+            node.typeParameters = parseTypeParameters();
+            node.heritageClauses = parseHeritageClauses();
+            if (parseExpected(18)) {
+                node.members = parseClassMembers();
+                parseExpected(19);
+            }
+            else {
+                node.members = createMissingList();
+            }
+            return finishNode(node);
+        }
+        function parseNameOfClassDeclarationOrExpression() {
+            return isIdentifier() && !isImplementsClause()
+                ? parseIdentifier()
+                : undefined;
+        }
+        function isImplementsClause() {
+            return token() === 113 && lookAhead(nextTokenIsIdentifierOrKeyword);
+        }
+        function parseHeritageClauses() {
+            if (isHeritageClause()) {
+                return parseList(22, parseHeritageClause);
+            }
+            return undefined;
+        }
+        function parseHeritageClause() {
+            var tok = token();
+            ts.Debug.assert(tok === 90 || tok === 113);
+            var node = createNode(279);
+            node.token = tok;
+            nextToken();
+            node.types = parseDelimitedList(7, parseExpressionWithTypeArguments);
+            return finishNode(node);
+        }
+        function parseExpressionWithTypeArguments() {
+            var node = createNode(216);
+            node.expression = parseLeftHandSideExpressionOrHigher();
+            node.typeArguments = tryParseTypeArguments();
+            return finishNode(node);
+        }
+        function tryParseTypeArguments() {
+            return token() === 29 ?
+                parseBracketedList(20, parseType, 29, 31) : undefined;
+        }
+        function isHeritageClause() {
+            return token() === 90 || token() === 113;
+        }
+        function parseClassMembers() {
+            return parseList(5, parseClassElement);
+        }
+        function parseInterfaceDeclaration(node) {
+            node.kind = 246;
+            parseExpected(114);
+            node.name = parseIdentifier();
+            node.typeParameters = parseTypeParameters();
+            node.heritageClauses = parseHeritageClauses();
+            node.members = parseObjectTypeMembers();
+            return finishNode(node);
+        }
+        function parseTypeAliasDeclaration(node) {
+            node.kind = 247;
+            parseExpected(145);
+            node.name = parseIdentifier();
+            node.typeParameters = parseTypeParameters();
+            parseExpected(62);
+            node.type = parseType();
+            parseSemicolon();
+            return finishNode(node);
+        }
+        function parseEnumMember() {
+            var node = createNodeWithJSDoc(284);
+            node.name = parsePropertyName();
+            node.initializer = allowInAnd(parseInitializer);
+            return finishNode(node);
+        }
+        function parseEnumDeclaration(node) {
+            node.kind = 248;
+            parseExpected(88);
+            node.name = parseIdentifier();
+            if (parseExpected(18)) {
+                node.members = doOutsideOfYieldAndAwaitContext(function () { return parseDelimitedList(6, parseEnumMember); });
+                parseExpected(19);
+            }
+            else {
+                node.members = createMissingList();
+            }
+            return finishNode(node);
+        }
+        function parseModuleBlock() {
+            var node = createNode(250);
+            if (parseExpected(18)) {
+                node.statements = parseList(1, parseStatement);
+                parseExpected(19);
+            }
+            else {
+                node.statements = createMissingList();
+            }
+            return finishNode(node);
+        }
+        function parseModuleOrNamespaceDeclaration(node, flags) {
+            node.kind = 249;
+            var namespaceFlag = flags & 16;
+            node.flags |= flags;
+            node.name = parseIdentifier();
+            node.body = parseOptional(24)
+                ? parseModuleOrNamespaceDeclaration(createNode(0), 4 | namespaceFlag)
+                : parseModuleBlock();
+            return finishNode(node);
+        }
+        function parseAmbientExternalModuleDeclaration(node) {
+            node.kind = 249;
+            if (token() === 150) {
+                node.name = parseIdentifier();
+                node.flags |= 1024;
+            }
+            else {
+                node.name = parseLiteralNode();
+                node.name.text = internIdentifier(node.name.text);
+            }
+            if (token() === 18) {
+                node.body = parseModuleBlock();
+            }
+            else {
+                parseSemicolon();
+            }
+            return finishNode(node);
+        }
+        function parseModuleDeclaration(node) {
+            var flags = 0;
+            if (token() === 150) {
+                return parseAmbientExternalModuleDeclaration(node);
+            }
+            else if (parseOptional(136)) {
+                flags |= 16;
+            }
+            else {
+                parseExpected(135);
+                if (token() === 10) {
+                    return parseAmbientExternalModuleDeclaration(node);
+                }
+            }
+            return parseModuleOrNamespaceDeclaration(node, flags);
+        }
+        function isExternalModuleReference() {
+            return token() === 139 &&
+                lookAhead(nextTokenIsOpenParen);
+        }
+        function nextTokenIsOpenParen() {
+            return nextToken() === 20;
+        }
+        function nextTokenIsSlash() {
+            return nextToken() === 43;
+        }
+        function parseNamespaceExportDeclaration(node) {
+            node.kind = 252;
+            parseExpected(123);
+            parseExpected(136);
+            node.name = parseIdentifier();
+            parseSemicolon();
+            return finishNode(node);
+        }
+        function parseImportDeclarationOrImportEqualsDeclaration(node) {
+            parseExpected(96);
+            var afterImportPos = scanner.getStartPos();
+            var identifier;
+            if (isIdentifier()) {
+                identifier = parseIdentifier();
+            }
+            var isTypeOnly = false;
+            if (token() !== 149 &&
+                (identifier === null || identifier === void 0 ? void 0 : identifier.escapedText) === "type" &&
+                (isIdentifier() || tokenAfterImportDefinitelyProducesImportDeclaration())) {
+                isTypeOnly = true;
+                identifier = isIdentifier() ? parseIdentifier() : undefined;
+            }
+            if (identifier && !tokenAfterImportedIdentifierDefinitelyProducesImportDeclaration()) {
+                return parseImportEqualsDeclaration(node, identifier, isTypeOnly);
+            }
+            node.kind = 254;
+            if (identifier ||
+                token() === 41 ||
+                token() === 18) {
+                node.importClause = parseImportClause(identifier, afterImportPos, isTypeOnly);
+                parseExpected(149);
+            }
+            node.moduleSpecifier = parseModuleSpecifier();
+            parseSemicolon();
+            return finishNode(node);
+        }
+        function tokenAfterImportDefinitelyProducesImportDeclaration() {
+            return token() === 41 || token() === 18;
+        }
+        function tokenAfterImportedIdentifierDefinitelyProducesImportDeclaration() {
+            return token() === 27 || token() === 149;
+        }
+        function parseImportEqualsDeclaration(node, identifier, isTypeOnly) {
+            node.kind = 253;
+            node.name = identifier;
+            parseExpected(62);
+            node.moduleReference = parseModuleReference();
+            parseSemicolon();
+            var finished = finishNode(node);
+            if (isTypeOnly) {
+                parseErrorAtRange(finished, ts.Diagnostics.Only_ECMAScript_imports_may_use_import_type);
+            }
+            return finished;
+        }
+        function parseImportClause(identifier, fullStart, isTypeOnly) {
+            var importClause = createNode(255, fullStart);
+            importClause.isTypeOnly = isTypeOnly;
+            if (identifier) {
+                importClause.name = identifier;
+            }
+            if (!importClause.name ||
+                parseOptional(27)) {
+                importClause.namedBindings = token() === 41 ? parseNamespaceImport() : parseNamedImportsOrExports(257);
+            }
+            return finishNode(importClause);
+        }
+        function parseModuleReference() {
+            return isExternalModuleReference()
+                ? parseExternalModuleReference()
+                : parseEntityName(false);
+        }
+        function parseExternalModuleReference() {
+            var node = createNode(265);
+            parseExpected(139);
+            parseExpected(20);
+            node.expression = parseModuleSpecifier();
+            parseExpected(21);
+            return finishNode(node);
+        }
+        function parseModuleSpecifier() {
+            if (token() === 10) {
+                var result = parseLiteralNode();
+                result.text = internIdentifier(result.text);
+                return result;
+            }
+            else {
+                return parseExpression();
+            }
+        }
+        function parseNamespaceImport() {
+            var namespaceImport = createNode(256);
+            parseExpected(41);
+            parseExpected(123);
+            namespaceImport.name = parseIdentifier();
+            return finishNode(namespaceImport);
+        }
+        function parseNamedImportsOrExports(kind) {
+            var node = createNode(kind);
+            node.elements = parseBracketedList(23, kind === 257 ? parseImportSpecifier : parseExportSpecifier, 18, 19);
+            return finishNode(node);
+        }
+        function parseExportSpecifier() {
+            return parseImportOrExportSpecifier(263);
+        }
+        function parseImportSpecifier() {
+            return parseImportOrExportSpecifier(258);
+        }
+        function parseImportOrExportSpecifier(kind) {
+            var node = createNode(kind);
+            var checkIdentifierIsKeyword = ts.isKeyword(token()) && !isIdentifier();
+            var checkIdentifierStart = scanner.getTokenPos();
+            var checkIdentifierEnd = scanner.getTextPos();
+            var identifierName = parseIdentifierName();
+            if (token() === 123) {
+                node.propertyName = identifierName;
+                parseExpected(123);
+                checkIdentifierIsKeyword = ts.isKeyword(token()) && !isIdentifier();
+                checkIdentifierStart = scanner.getTokenPos();
+                checkIdentifierEnd = scanner.getTextPos();
+                node.name = parseIdentifierName();
+            }
+            else {
+                node.name = identifierName;
+            }
+            if (kind === 258 && checkIdentifierIsKeyword) {
+                parseErrorAt(checkIdentifierStart, checkIdentifierEnd, ts.Diagnostics.Identifier_expected);
+            }
+            return finishNode(node);
+        }
+        function parseNamespaceExport(pos) {
+            var node = createNode(262, pos);
+            node.name = parseIdentifier();
+            return finishNode(node);
+        }
+        function parseExportDeclaration(node) {
+            node.kind = 260;
+            node.isTypeOnly = parseOptional(145);
+            var namespaceExportPos = scanner.getStartPos();
+            if (parseOptional(41)) {
+                if (parseOptional(123)) {
+                    node.exportClause = parseNamespaceExport(namespaceExportPos);
+                }
+                parseExpected(149);
+                node.moduleSpecifier = parseModuleSpecifier();
+            }
+            else {
+                node.exportClause = parseNamedImportsOrExports(261);
+                if (token() === 149 || (token() === 10 && !scanner.hasPrecedingLineBreak())) {
+                    parseExpected(149);
+                    node.moduleSpecifier = parseModuleSpecifier();
+                }
+            }
+            parseSemicolon();
+            return finishNode(node);
+        }
+        function parseExportAssignment(node) {
+            node.kind = 259;
+            if (parseOptional(62)) {
+                node.isExportEquals = true;
+            }
+            else {
+                parseExpected(84);
+            }
+            node.expression = parseAssignmentExpressionOrHigher();
+            parseSemicolon();
+            return finishNode(node);
+        }
+        function setExternalModuleIndicator(sourceFile) {
+            sourceFile.externalModuleIndicator =
+                ts.forEach(sourceFile.statements, isAnExternalModuleIndicatorNode) ||
+                    getImportMetaIfNecessary(sourceFile);
+        }
+        function isAnExternalModuleIndicatorNode(node) {
+            return hasModifierOfKind(node, 89)
+                || node.kind === 253 && node.moduleReference.kind === 265
+                || node.kind === 254
+                || node.kind === 259
+                || node.kind === 260 ? node : undefined;
+        }
+        function getImportMetaIfNecessary(sourceFile) {
+            return sourceFile.flags & 2097152 ?
+                walkTreeForExternalModuleIndicators(sourceFile) :
+                undefined;
+        }
+        function walkTreeForExternalModuleIndicators(node) {
+            return isImportMeta(node) ? node : forEachChild(node, walkTreeForExternalModuleIndicators);
+        }
+        function hasModifierOfKind(node, kind) {
+            return ts.some(node.modifiers, function (m) { return m.kind === kind; });
+        }
+        function isImportMeta(node) {
+            return ts.isMetaProperty(node) && node.keywordToken === 96 && node.name.escapedText === "meta";
+        }
+        var JSDocParser;
+        (function (JSDocParser) {
+            function parseJSDocTypeExpressionForTests(content, start, length) {
+                initializeState(content, 99, undefined, 1);
+                sourceFile = createSourceFile("file.js", 99, 1, false);
+                scanner.setText(content, start, length);
+                currentToken = scanner.scan();
+                var jsDocTypeExpression = parseJSDocTypeExpression();
+                var diagnostics = parseDiagnostics;
+                clearState();
+                return jsDocTypeExpression ? { jsDocTypeExpression: jsDocTypeExpression, diagnostics: diagnostics } : undefined;
+            }
+            JSDocParser.parseJSDocTypeExpressionForTests = parseJSDocTypeExpressionForTests;
+            function parseJSDocTypeExpression(mayOmitBraces) {
+                var result = createNode(294);
+                var hasBrace = (mayOmitBraces ? parseOptional : parseExpected)(18);
+                result.type = doInsideOfContext(4194304, parseJSDocType);
+                if (!mayOmitBraces || hasBrace) {
+                    parseExpectedJSDoc(19);
+                }
+                fixupParentReferences(result);
+                return finishNode(result);
+            }
+            JSDocParser.parseJSDocTypeExpression = parseJSDocTypeExpression;
+            function parseIsolatedJSDocComment(content, start, length) {
+                initializeState(content, 99, undefined, 1);
+                sourceFile = { languageVariant: 0, text: content };
+                var jsDoc = doInsideOfContext(4194304, function () { return parseJSDocCommentWorker(start, length); });
+                var diagnostics = parseDiagnostics;
+                clearState();
+                return jsDoc ? { jsDoc: jsDoc, diagnostics: diagnostics } : undefined;
+            }
+            JSDocParser.parseIsolatedJSDocComment = parseIsolatedJSDocComment;
+            function parseJSDocComment(parent, start, length) {
+                var _a;
+                var saveToken = currentToken;
+                var saveParseDiagnosticsLength = parseDiagnostics.length;
+                var saveParseErrorBeforeNextFinishedNode = parseErrorBeforeNextFinishedNode;
+                var comment = doInsideOfContext(4194304, function () { return parseJSDocCommentWorker(start, length); });
+                if (comment) {
+                    comment.parent = parent;
+                }
+                if (contextFlags & 131072) {
+                    if (!sourceFile.jsDocDiagnostics) {
+                        sourceFile.jsDocDiagnostics = [];
+                    }
+                    (_a = sourceFile.jsDocDiagnostics).push.apply(_a, parseDiagnostics);
+                }
+                currentToken = saveToken;
+                parseDiagnostics.length = saveParseDiagnosticsLength;
+                parseErrorBeforeNextFinishedNode = saveParseErrorBeforeNextFinishedNode;
+                return comment;
+            }
+            JSDocParser.parseJSDocComment = parseJSDocComment;
+            function parseJSDocCommentWorker(start, length) {
+                if (start === void 0) { start = 0; }
+                var content = sourceText;
+                var end = length === undefined ? content.length : start + length;
+                length = end - start;
+                ts.Debug.assert(start >= 0);
+                ts.Debug.assert(start <= end);
+                ts.Debug.assert(end <= content.length);
+                if (!isJSDocLikeText(content, start)) {
+                    return undefined;
+                }
+                var tags;
+                var tagsPos;
+                var tagsEnd;
+                var comments = [];
+                return scanner.scanRange(start + 3, length - 5, function () {
+                    var state = 1;
+                    var margin;
+                    var indent = start - Math.max(content.lastIndexOf("\n", start), 0) + 4;
+                    function pushComment(text) {
+                        if (!margin) {
+                            margin = indent;
+                        }
+                        comments.push(text);
+                        indent += text.length;
+                    }
+                    nextTokenJSDoc();
+                    while (parseOptionalJsdoc(5))
+                        ;
+                    if (parseOptionalJsdoc(4)) {
+                        state = 0;
+                        indent = 0;
+                    }
+                    loop: while (true) {
+                        switch (token()) {
+                            case 59:
+                                if (state === 0 || state === 1) {
+                                    removeTrailingWhitespace(comments);
+                                    addTag(parseTag(indent));
+                                    state = 0;
+                                    margin = undefined;
+                                }
+                                else {
+                                    pushComment(scanner.getTokenText());
+                                }
+                                break;
+                            case 4:
+                                comments.push(scanner.getTokenText());
+                                state = 0;
+                                indent = 0;
+                                break;
+                            case 41:
+                                var asterisk = scanner.getTokenText();
+                                if (state === 1 || state === 2) {
+                                    state = 2;
+                                    pushComment(asterisk);
+                                }
+                                else {
+                                    state = 1;
+                                    indent += asterisk.length;
+                                }
+                                break;
+                            case 5:
+                                var whitespace = scanner.getTokenText();
+                                if (state === 2) {
+                                    comments.push(whitespace);
+                                }
+                                else if (margin !== undefined && indent + whitespace.length > margin) {
+                                    comments.push(whitespace.slice(margin - indent - 1));
+                                }
+                                indent += whitespace.length;
+                                break;
+                            case 1:
+                                break loop;
+                            default:
+                                state = 2;
+                                pushComment(scanner.getTokenText());
+                                break;
+                        }
+                        nextTokenJSDoc();
+                    }
+                    removeLeadingNewlines(comments);
+                    removeTrailingWhitespace(comments);
+                    return createJSDocComment();
+                });
+                function removeLeadingNewlines(comments) {
+                    while (comments.length && (comments[0] === "\n" || comments[0] === "\r")) {
+                        comments.shift();
+                    }
+                }
+                function removeTrailingWhitespace(comments) {
+                    while (comments.length && comments[comments.length - 1].trim() === "") {
+                        comments.pop();
+                    }
+                }
+                function createJSDocComment() {
+                    var result = createNode(303, start);
+                    result.tags = tags && createNodeArray(tags, tagsPos, tagsEnd);
+                    result.comment = comments.length ? comments.join("") : undefined;
+                    return finishNode(result, end);
+                }
+                function isNextNonwhitespaceTokenEndOfFile() {
+                    while (true) {
+                        nextTokenJSDoc();
+                        if (token() === 1) {
+                            return true;
+                        }
+                        if (!(token() === 5 || token() === 4)) {
+                            return false;
+                        }
+                    }
+                }
+                function skipWhitespace() {
+                    if (token() === 5 || token() === 4) {
+                        if (lookAhead(isNextNonwhitespaceTokenEndOfFile)) {
+                            return;
+                        }
+                    }
+                    while (token() === 5 || token() === 4) {
+                        nextTokenJSDoc();
+                    }
+                }
+                function skipWhitespaceOrAsterisk() {
+                    if (token() === 5 || token() === 4) {
+                        if (lookAhead(isNextNonwhitespaceTokenEndOfFile)) {
+                            return "";
+                        }
+                    }
+                    var precedingLineBreak = scanner.hasPrecedingLineBreak();
+                    var seenLineBreak = false;
+                    var indentText = "";
+                    while ((precedingLineBreak && token() === 41) || token() === 5 || token() === 4) {
+                        indentText += scanner.getTokenText();
+                        if (token() === 4) {
+                            precedingLineBreak = true;
+                            seenLineBreak = true;
+                            indentText = "";
+                        }
+                        else if (token() === 41) {
+                            precedingLineBreak = false;
+                        }
+                        nextTokenJSDoc();
+                    }
+                    return seenLineBreak ? indentText : "";
+                }
+                function parseTag(margin) {
+                    ts.Debug.assert(token() === 59);
+                    var start = scanner.getTokenPos();
+                    nextTokenJSDoc();
+                    var tagName = parseJSDocIdentifierName(undefined);
+                    var indentText = skipWhitespaceOrAsterisk();
+                    var tag;
+                    switch (tagName.escapedText) {
+                        case "author":
+                            tag = parseAuthorTag(start, tagName, margin);
+                            break;
+                        case "implements":
+                            tag = parseImplementsTag(start, tagName);
+                            break;
+                        case "augments":
+                        case "extends":
+                            tag = parseAugmentsTag(start, tagName);
+                            break;
+                        case "class":
+                        case "constructor":
+                            tag = parseSimpleTag(start, 310, tagName);
+                            break;
+                        case "public":
+                            tag = parseSimpleTag(start, 311, tagName);
+                            break;
+                        case "private":
+                            tag = parseSimpleTag(start, 312, tagName);
+                            break;
+                        case "protected":
+                            tag = parseSimpleTag(start, 313, tagName);
+                            break;
+                        case "readonly":
+                            tag = parseSimpleTag(start, 314, tagName);
+                            break;
+                        case "this":
+                            tag = parseThisTag(start, tagName);
+                            break;
+                        case "enum":
+                            tag = parseEnumTag(start, tagName);
+                            break;
+                        case "arg":
+                        case "argument":
+                        case "param":
+                            return parseParameterOrPropertyTag(start, tagName, 2, margin);
+                        case "return":
+                        case "returns":
+                            tag = parseReturnTag(start, tagName);
+                            break;
+                        case "template":
+                            tag = parseTemplateTag(start, tagName);
+                            break;
+                        case "type":
+                            tag = parseTypeTag(start, tagName);
+                            break;
+                        case "typedef":
+                            tag = parseTypedefTag(start, tagName, margin);
+                            break;
+                        case "callback":
+                            tag = parseCallbackTag(start, tagName, margin);
+                            break;
+                        default:
+                            tag = parseUnknownTag(start, tagName);
+                            break;
+                    }
+                    if (!tag.comment) {
+                        if (!indentText) {
+                            margin += tag.end - tag.pos;
+                        }
+                        tag.comment = parseTagComments(margin, indentText.slice(margin));
+                    }
+                    return tag;
+                }
+                function parseTagComments(indent, initialMargin) {
+                    var comments = [];
+                    var state = 0;
+                    var margin;
+                    function pushComment(text) {
+                        if (!margin) {
+                            margin = indent;
+                        }
+                        comments.push(text);
+                        indent += text.length;
+                    }
+                    if (initialMargin !== undefined) {
+                        if (initialMargin !== "") {
+                            pushComment(initialMargin);
+                        }
+                        state = 1;
+                    }
+                    var tok = token();
+                    loop: while (true) {
+                        switch (tok) {
+                            case 4:
+                                if (state >= 1) {
+                                    state = 0;
+                                    comments.push(scanner.getTokenText());
+                                }
+                                indent = 0;
+                                break;
+                            case 59:
+                                if (state === 3) {
+                                    comments.push(scanner.getTokenText());
+                                    break;
+                                }
+                                scanner.setTextPos(scanner.getTextPos() - 1);
+                            case 1:
+                                break loop;
+                            case 5:
+                                if (state === 2 || state === 3) {
+                                    pushComment(scanner.getTokenText());
+                                }
+                                else {
+                                    var whitespace = scanner.getTokenText();
+                                    if (margin !== undefined && indent + whitespace.length > margin) {
+                                        comments.push(whitespace.slice(margin - indent));
+                                    }
+                                    indent += whitespace.length;
+                                }
+                                break;
+                            case 18:
+                                state = 2;
+                                if (lookAhead(function () { return nextTokenJSDoc() === 59 && ts.tokenIsIdentifierOrKeyword(nextTokenJSDoc()) && scanner.getTokenText() === "link"; })) {
+                                    pushComment(scanner.getTokenText());
+                                    nextTokenJSDoc();
+                                    pushComment(scanner.getTokenText());
+                                    nextTokenJSDoc();
+                                }
+                                pushComment(scanner.getTokenText());
+                                break;
+                            case 61:
+                                if (state === 3) {
+                                    state = 2;
+                                }
+                                else {
+                                    state = 3;
+                                }
+                                pushComment(scanner.getTokenText());
+                                break;
+                            case 41:
+                                if (state === 0) {
+                                    state = 1;
+                                    indent += 1;
+                                    break;
+                                }
+                            default:
+                                if (state !== 3) {
+                                    state = 2;
+                                }
+                                pushComment(scanner.getTokenText());
+                                break;
+                        }
+                        tok = nextTokenJSDoc();
+                    }
+                    removeLeadingNewlines(comments);
+                    removeTrailingWhitespace(comments);
+                    return comments.length === 0 ? undefined : comments.join("");
+                }
+                function parseUnknownTag(start, tagName) {
+                    var result = createNode(306, start);
+                    result.tagName = tagName;
+                    return finishNode(result);
+                }
+                function addTag(tag) {
+                    if (!tag) {
+                        return;
+                    }
+                    if (!tags) {
+                        tags = [tag];
+                        tagsPos = tag.pos;
+                    }
+                    else {
+                        tags.push(tag);
+                    }
+                    tagsEnd = tag.end;
+                }
+                function tryParseTypeExpression() {
+                    skipWhitespaceOrAsterisk();
+                    return token() === 18 ? parseJSDocTypeExpression() : undefined;
+                }
+                function parseBracketNameInPropertyAndParamTag() {
+                    var isBracketed = parseOptionalJsdoc(22);
+                    if (isBracketed) {
+                        skipWhitespace();
+                    }
+                    var isBackquoted = parseOptionalJsdoc(61);
+                    var name = parseJSDocEntityName();
+                    if (isBackquoted) {
+                        parseExpectedTokenJSDoc(61);
+                    }
+                    if (isBracketed) {
+                        skipWhitespace();
+                        if (parseOptionalToken(62)) {
+                            parseExpression();
+                        }
+                        parseExpected(23);
+                    }
+                    return { name: name, isBracketed: isBracketed };
+                }
+                function isObjectOrObjectArrayTypeReference(node) {
+                    switch (node.kind) {
+                        case 141:
+                            return true;
+                        case 174:
+                            return isObjectOrObjectArrayTypeReference(node.elementType);
+                        default:
+                            return ts.isTypeReferenceNode(node) && ts.isIdentifier(node.typeName) && node.typeName.escapedText === "Object" && !node.typeArguments;
+                    }
+                }
+                function parseParameterOrPropertyTag(start, tagName, target, indent) {
+                    var typeExpression = tryParseTypeExpression();
+                    var isNameFirst = !typeExpression;
+                    skipWhitespaceOrAsterisk();
+                    var _a = parseBracketNameInPropertyAndParamTag(), name = _a.name, isBracketed = _a.isBracketed;
+                    skipWhitespace();
+                    if (isNameFirst) {
+                        typeExpression = tryParseTypeExpression();
+                    }
+                    var result = target === 1 ?
+                        createNode(323, start) :
+                        createNode(317, start);
+                    var comment = parseTagComments(indent + scanner.getStartPos() - start);
+                    var nestedTypeLiteral = target !== 4 && parseNestedTypeLiteral(typeExpression, name, target, indent);
+                    if (nestedTypeLiteral) {
+                        typeExpression = nestedTypeLiteral;
+                        isNameFirst = true;
+                    }
+                    result.tagName = tagName;
+                    result.typeExpression = typeExpression;
+                    result.name = name;
+                    result.isNameFirst = isNameFirst;
+                    result.isBracketed = isBracketed;
+                    result.comment = comment;
+                    return finishNode(result);
+                }
+                function parseNestedTypeLiteral(typeExpression, name, target, indent) {
+                    if (typeExpression && isObjectOrObjectArrayTypeReference(typeExpression.type)) {
+                        var typeLiteralExpression = createNode(294, scanner.getTokenPos());
+                        var child = void 0;
+                        var jsdocTypeLiteral = void 0;
+                        var start_3 = scanner.getStartPos();
+                        var children = void 0;
+                        while (child = tryParse(function () { return parseChildParameterOrPropertyTag(target, indent, name); })) {
+                            if (child.kind === 317 || child.kind === 323) {
+                                children = ts.append(children, child);
+                            }
+                        }
+                        if (children) {
+                            jsdocTypeLiteral = createNode(304, start_3);
+                            jsdocTypeLiteral.jsDocPropertyTags = children;
+                            if (typeExpression.type.kind === 174) {
+                                jsdocTypeLiteral.isArrayType = true;
+                            }
+                            typeLiteralExpression.type = finishNode(jsdocTypeLiteral);
+                            return finishNode(typeLiteralExpression);
+                        }
+                    }
+                }
+                function parseReturnTag(start, tagName) {
+                    if (ts.some(tags, ts.isJSDocReturnTag)) {
+                        parseErrorAt(tagName.pos, scanner.getTokenPos(), ts.Diagnostics._0_tag_already_specified, tagName.escapedText);
+                    }
+                    var result = createNode(318, start);
+                    result.tagName = tagName;
+                    result.typeExpression = tryParseTypeExpression();
+                    return finishNode(result);
+                }
+                function parseTypeTag(start, tagName) {
+                    if (ts.some(tags, ts.isJSDocTypeTag)) {
+                        parseErrorAt(tagName.pos, scanner.getTokenPos(), ts.Diagnostics._0_tag_already_specified, tagName.escapedText);
+                    }
+                    var result = createNode(320, start);
+                    result.tagName = tagName;
+                    result.typeExpression = parseJSDocTypeExpression(true);
+                    return finishNode(result);
+                }
+                function parseAuthorTag(start, tagName, indent) {
+                    var result = createNode(309, start);
+                    result.tagName = tagName;
+                    var authorInfoWithEmail = tryParse(function () { return tryParseAuthorNameAndEmail(); });
+                    if (!authorInfoWithEmail) {
+                        return finishNode(result);
+                    }
+                    result.comment = authorInfoWithEmail;
+                    if (lookAhead(function () { return nextToken() !== 4; })) {
+                        var comment = parseTagComments(indent);
+                        if (comment) {
+                            result.comment += comment;
+                        }
+                    }
+                    return finishNode(result);
+                }
+                function tryParseAuthorNameAndEmail() {
+                    var comments = [];
+                    var seenLessThan = false;
+                    var seenGreaterThan = false;
+                    var token = scanner.getToken();
+                    loop: while (true) {
+                        switch (token) {
+                            case 75:
+                            case 5:
+                            case 24:
+                            case 59:
+                                comments.push(scanner.getTokenText());
+                                break;
+                            case 29:
+                                if (seenLessThan || seenGreaterThan) {
+                                    return;
+                                }
+                                seenLessThan = true;
+                                comments.push(scanner.getTokenText());
+                                break;
+                            case 31:
+                                if (!seenLessThan || seenGreaterThan) {
+                                    return;
+                                }
+                                seenGreaterThan = true;
+                                comments.push(scanner.getTokenText());
+                                scanner.setTextPos(scanner.getTokenPos() + 1);
+                                break loop;
+                            case 4:
+                            case 1:
+                                break loop;
+                        }
+                        token = nextTokenJSDoc();
+                    }
+                    if (seenLessThan && seenGreaterThan) {
+                        return comments.length === 0 ? undefined : comments.join("");
+                    }
+                }
+                function parseImplementsTag(start, tagName) {
+                    var result = createNode(308, start);
+                    result.tagName = tagName;
+                    result.class = parseExpressionWithTypeArgumentsForAugments();
+                    return finishNode(result);
+                }
+                function parseAugmentsTag(start, tagName) {
+                    var result = createNode(307, start);
+                    result.tagName = tagName;
+                    result.class = parseExpressionWithTypeArgumentsForAugments();
+                    return finishNode(result);
+                }
+                function parseExpressionWithTypeArgumentsForAugments() {
+                    var usedBrace = parseOptional(18);
+                    var node = createNode(216);
+                    node.expression = parsePropertyAccessEntityNameExpression();
+                    node.typeArguments = tryParseTypeArguments();
+                    var res = finishNode(node);
+                    if (usedBrace) {
+                        parseExpected(19);
+                    }
+                    return res;
+                }
+                function parsePropertyAccessEntityNameExpression() {
+                    var node = parseJSDocIdentifierName();
+                    while (parseOptional(24)) {
+                        var prop = createNode(194, node.pos);
+                        prop.expression = node;
+                        prop.name = parseJSDocIdentifierName();
+                        node = finishNode(prop);
+                    }
+                    return node;
+                }
+                function parseSimpleTag(start, kind, tagName) {
+                    var tag = createNode(kind, start);
+                    tag.tagName = tagName;
+                    return finishNode(tag);
+                }
+                function parseThisTag(start, tagName) {
+                    var tag = createNode(319, start);
+                    tag.tagName = tagName;
+                    tag.typeExpression = parseJSDocTypeExpression(true);
+                    skipWhitespace();
+                    return finishNode(tag);
+                }
+                function parseEnumTag(start, tagName) {
+                    var tag = createNode(316, start);
+                    tag.tagName = tagName;
+                    tag.typeExpression = parseJSDocTypeExpression(true);
+                    skipWhitespace();
+                    return finishNode(tag);
+                }
+                function parseTypedefTag(start, tagName, indent) {
+                    var typeExpression = tryParseTypeExpression();
+                    skipWhitespaceOrAsterisk();
+                    var typedefTag = createNode(322, start);
+                    typedefTag.tagName = tagName;
+                    typedefTag.fullName = parseJSDocTypeNameWithNamespace();
+                    typedefTag.name = getJSDocTypeAliasName(typedefTag.fullName);
+                    skipWhitespace();
+                    typedefTag.comment = parseTagComments(indent);
+                    typedefTag.typeExpression = typeExpression;
+                    var end;
+                    if (!typeExpression || isObjectOrObjectArrayTypeReference(typeExpression.type)) {
+                        var child = void 0;
+                        var jsdocTypeLiteral = void 0;
+                        var childTypeTag = void 0;
+                        while (child = tryParse(function () { return parseChildPropertyTag(indent); })) {
+                            if (!jsdocTypeLiteral) {
+                                jsdocTypeLiteral = createNode(304, start);
+                            }
+                            if (child.kind === 320) {
+                                if (childTypeTag) {
+                                    break;
+                                }
+                                else {
+                                    childTypeTag = child;
+                                }
+                            }
+                            else {
+                                jsdocTypeLiteral.jsDocPropertyTags = ts.append(jsdocTypeLiteral.jsDocPropertyTags, child);
+                            }
+                        }
+                        if (jsdocTypeLiteral) {
+                            if (typeExpression && typeExpression.type.kind === 174) {
+                                jsdocTypeLiteral.isArrayType = true;
+                            }
+                            typedefTag.typeExpression = childTypeTag && childTypeTag.typeExpression && !isObjectOrObjectArrayTypeReference(childTypeTag.typeExpression.type) ?
+                                childTypeTag.typeExpression :
+                                finishNode(jsdocTypeLiteral);
+                            end = typedefTag.typeExpression.end;
+                        }
+                    }
+                    return finishNode(typedefTag, end || typedefTag.comment !== undefined ? scanner.getStartPos() : (typedefTag.fullName || typedefTag.typeExpression || typedefTag.tagName).end);
+                }
+                function parseJSDocTypeNameWithNamespace(nested) {
+                    var pos = scanner.getTokenPos();
+                    if (!ts.tokenIsIdentifierOrKeyword(token())) {
+                        return undefined;
+                    }
+                    var typeNameOrNamespaceName = parseJSDocIdentifierName();
+                    if (parseOptional(24)) {
+                        var jsDocNamespaceNode = createNode(249, pos);
+                        if (nested) {
+                            jsDocNamespaceNode.flags |= 4;
+                        }
+                        jsDocNamespaceNode.name = typeNameOrNamespaceName;
+                        jsDocNamespaceNode.body = parseJSDocTypeNameWithNamespace(true);
+                        return finishNode(jsDocNamespaceNode);
+                    }
+                    if (nested) {
+                        typeNameOrNamespaceName.isInJSDocNamespace = true;
+                    }
+                    return typeNameOrNamespaceName;
+                }
+                function parseCallbackTag(start, tagName, indent) {
+                    var callbackTag = createNode(315, start);
+                    callbackTag.tagName = tagName;
+                    callbackTag.fullName = parseJSDocTypeNameWithNamespace();
+                    callbackTag.name = getJSDocTypeAliasName(callbackTag.fullName);
+                    skipWhitespace();
+                    callbackTag.comment = parseTagComments(indent);
+                    var child;
+                    var jsdocSignature = createNode(305, start);
+                    jsdocSignature.parameters = [];
+                    while (child = tryParse(function () { return parseChildParameterOrPropertyTag(4, indent); })) {
+                        jsdocSignature.parameters = ts.append(jsdocSignature.parameters, child);
+                    }
+                    var returnTag = tryParse(function () {
+                        if (parseOptionalJsdoc(59)) {
+                            var tag = parseTag(indent);
+                            if (tag && tag.kind === 318) {
+                                return tag;
+                            }
+                        }
+                    });
+                    if (returnTag) {
+                        jsdocSignature.type = returnTag;
+                    }
+                    callbackTag.typeExpression = finishNode(jsdocSignature);
+                    return finishNode(callbackTag);
+                }
+                function getJSDocTypeAliasName(fullName) {
+                    if (fullName) {
+                        var rightNode = fullName;
+                        while (true) {
+                            if (ts.isIdentifier(rightNode) || !rightNode.body) {
+                                return ts.isIdentifier(rightNode) ? rightNode : rightNode.name;
+                            }
+                            rightNode = rightNode.body;
+                        }
+                    }
+                }
+                function escapedTextsEqual(a, b) {
+                    while (!ts.isIdentifier(a) || !ts.isIdentifier(b)) {
+                        if (!ts.isIdentifier(a) && !ts.isIdentifier(b) && a.right.escapedText === b.right.escapedText) {
+                            a = a.left;
+                            b = b.left;
+                        }
+                        else {
+                            return false;
+                        }
+                    }
+                    return a.escapedText === b.escapedText;
+                }
+                function parseChildPropertyTag(indent) {
+                    return parseChildParameterOrPropertyTag(1, indent);
+                }
+                function parseChildParameterOrPropertyTag(target, indent, name) {
+                    var canParseTag = true;
+                    var seenAsterisk = false;
+                    while (true) {
+                        switch (nextTokenJSDoc()) {
+                            case 59:
+                                if (canParseTag) {
+                                    var child = tryParseChildTag(target, indent);
+                                    if (child && (child.kind === 317 || child.kind === 323) &&
+                                        target !== 4 &&
+                                        name && (ts.isIdentifier(child.name) || !escapedTextsEqual(name, child.name.left))) {
+                                        return false;
+                                    }
+                                    return child;
+                                }
+                                seenAsterisk = false;
+                                break;
+                            case 4:
+                                canParseTag = true;
+                                seenAsterisk = false;
+                                break;
+                            case 41:
+                                if (seenAsterisk) {
+                                    canParseTag = false;
+                                }
+                                seenAsterisk = true;
+                                break;
+                            case 75:
+                                canParseTag = false;
+                                break;
+                            case 1:
+                                return false;
+                        }
+                    }
+                }
+                function tryParseChildTag(target, indent) {
+                    ts.Debug.assert(token() === 59);
+                    var start = scanner.getStartPos();
+                    nextTokenJSDoc();
+                    var tagName = parseJSDocIdentifierName();
+                    skipWhitespace();
+                    var t;
+                    switch (tagName.escapedText) {
+                        case "type":
+                            return target === 1 && parseTypeTag(start, tagName);
+                        case "prop":
+                        case "property":
+                            t = 1;
+                            break;
+                        case "arg":
+                        case "argument":
+                        case "param":
+                            t = 2 | 4;
+                            break;
+                        default:
+                            return false;
+                    }
+                    if (!(target & t)) {
+                        return false;
+                    }
+                    return parseParameterOrPropertyTag(start, tagName, target, indent);
+                }
+                function parseTemplateTag(start, tagName) {
+                    var constraint;
+                    if (token() === 18) {
+                        constraint = parseJSDocTypeExpression();
+                    }
+                    var typeParameters = [];
+                    var typeParametersPos = getNodePos();
+                    do {
+                        skipWhitespace();
+                        var typeParameter = createNode(155);
+                        typeParameter.name = parseJSDocIdentifierName(ts.Diagnostics.Unexpected_token_A_type_parameter_name_was_expected_without_curly_braces);
+                        finishNode(typeParameter);
+                        skipWhitespaceOrAsterisk();
+                        typeParameters.push(typeParameter);
+                    } while (parseOptionalJsdoc(27));
+                    var result = createNode(321, start);
+                    result.tagName = tagName;
+                    result.constraint = constraint;
+                    result.typeParameters = createNodeArray(typeParameters, typeParametersPos);
+                    finishNode(result);
+                    return result;
+                }
+                function parseOptionalJsdoc(t) {
+                    if (token() === t) {
+                        nextTokenJSDoc();
+                        return true;
+                    }
+                    return false;
+                }
+                function parseJSDocEntityName() {
+                    var entity = parseJSDocIdentifierName();
+                    if (parseOptional(22)) {
+                        parseExpected(23);
+                    }
+                    while (parseOptional(24)) {
+                        var name = parseJSDocIdentifierName();
+                        if (parseOptional(22)) {
+                            parseExpected(23);
+                        }
+                        entity = createQualifiedName(entity, name);
+                    }
+                    return entity;
+                }
+                function parseJSDocIdentifierName(message) {
+                    if (!ts.tokenIsIdentifierOrKeyword(token())) {
+                        return createMissingNode(75, !message, message || ts.Diagnostics.Identifier_expected);
+                    }
+                    identifierCount++;
+                    var pos = scanner.getTokenPos();
+                    var end = scanner.getTextPos();
+                    var result = createNode(75, pos);
+                    if (token() !== 75) {
+                        result.originalKeywordKind = token();
+                    }
+                    result.escapedText = ts.escapeLeadingUnderscores(internIdentifier(scanner.getTokenValue()));
+                    finishNode(result, end);
+                    nextTokenJSDoc();
+                    return result;
+                }
+            }
+        })(JSDocParser = Parser.JSDocParser || (Parser.JSDocParser = {}));
+    })(Parser || (Parser = {}));
+    var IncrementalParser;
+    (function (IncrementalParser) {
+        function updateSourceFile(sourceFile, newText, textChangeRange, aggressiveChecks) {
+            aggressiveChecks = aggressiveChecks || ts.Debug.shouldAssert(2);
+            checkChangeRange(sourceFile, newText, textChangeRange, aggressiveChecks);
+            if (ts.textChangeRangeIsUnchanged(textChangeRange)) {
+                return sourceFile;
+            }
+            if (sourceFile.statements.length === 0) {
+                return Parser.parseSourceFile(sourceFile.fileName, newText, sourceFile.languageVersion, undefined, true, sourceFile.scriptKind);
+            }
+            var incrementalSourceFile = sourceFile;
+            ts.Debug.assert(!incrementalSourceFile.hasBeenIncrementallyParsed);
+            incrementalSourceFile.hasBeenIncrementallyParsed = true;
+            var oldText = sourceFile.text;
+            var syntaxCursor = createSyntaxCursor(sourceFile);
+            var changeRange = extendToAffectedRange(sourceFile, textChangeRange);
+            checkChangeRange(sourceFile, newText, changeRange, aggressiveChecks);
+            ts.Debug.assert(changeRange.span.start <= textChangeRange.span.start);
+            ts.Debug.assert(ts.textSpanEnd(changeRange.span) === ts.textSpanEnd(textChangeRange.span));
+            ts.Debug.assert(ts.textSpanEnd(ts.textChangeRangeNewSpan(changeRange)) === ts.textSpanEnd(ts.textChangeRangeNewSpan(textChangeRange)));
+            var delta = ts.textChangeRangeNewSpan(changeRange).length - changeRange.span.length;
+            updateTokenPositionsAndMarkElements(incrementalSourceFile, changeRange.span.start, ts.textSpanEnd(changeRange.span), ts.textSpanEnd(ts.textChangeRangeNewSpan(changeRange)), delta, oldText, newText, aggressiveChecks);
+            var result = Parser.parseSourceFile(sourceFile.fileName, newText, sourceFile.languageVersion, syntaxCursor, true, sourceFile.scriptKind);
+            result.commentDirectives = getNewCommentDirectives(sourceFile.commentDirectives, result.commentDirectives, changeRange.span.start, ts.textSpanEnd(changeRange.span), delta, oldText, newText, aggressiveChecks);
+            return result;
+        }
+        IncrementalParser.updateSourceFile = updateSourceFile;
+        function getNewCommentDirectives(oldDirectives, newDirectives, changeStart, changeRangeOldEnd, delta, oldText, newText, aggressiveChecks) {
+            if (!oldDirectives)
+                return newDirectives;
+            var commentDirectives;
+            var addedNewlyScannedDirectives = false;
+            for (var _i = 0, oldDirectives_1 = oldDirectives; _i < oldDirectives_1.length; _i++) {
+                var directive = oldDirectives_1[_i];
+                var range = directive.range, type = directive.type;
+                if (range.end < changeStart) {
+                    commentDirectives = ts.append(commentDirectives, directive);
+                }
+                else if (range.pos > changeRangeOldEnd) {
+                    addNewlyScannedDirectives();
+                    var updatedDirective = {
+                        range: { pos: range.pos + delta, end: range.end + delta },
+                        type: type
+                    };
+                    commentDirectives = ts.append(commentDirectives, updatedDirective);
+                    if (aggressiveChecks) {
+                        ts.Debug.assert(oldText.substring(range.pos, range.end) === newText.substring(updatedDirective.range.pos, updatedDirective.range.end));
+                    }
+                }
+            }
+            addNewlyScannedDirectives();
+            return commentDirectives;
+            function addNewlyScannedDirectives() {
+                if (addedNewlyScannedDirectives)
+                    return;
+                addedNewlyScannedDirectives = true;
+                if (!commentDirectives) {
+                    commentDirectives = newDirectives;
+                }
+                else if (newDirectives) {
+                    commentDirectives.push.apply(commentDirectives, newDirectives);
+                }
+            }
+        }
+        function moveElementEntirelyPastChangeRange(element, isArray, delta, oldText, newText, aggressiveChecks) {
+            if (isArray) {
+                visitArray(element);
+            }
+            else {
+                visitNode(element);
+            }
+            return;
+            function visitNode(node) {
+                var text = "";
+                if (aggressiveChecks && shouldCheckNode(node)) {
+                    text = oldText.substring(node.pos, node.end);
+                }
+                if (node._children) {
+                    node._children = undefined;
+                }
+                node.pos += delta;
+                node.end += delta;
+                if (aggressiveChecks && shouldCheckNode(node)) {
+                    ts.Debug.assert(text === newText.substring(node.pos, node.end));
+                }
+                forEachChild(node, visitNode, visitArray);
+                if (ts.hasJSDocNodes(node)) {
+                    for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
+                        var jsDocComment = _a[_i];
+                        visitNode(jsDocComment);
+                    }
+                }
+                checkNodePositions(node, aggressiveChecks);
+            }
+            function visitArray(array) {
+                array._children = undefined;
+                array.pos += delta;
+                array.end += delta;
+                for (var _i = 0, array_8 = array; _i < array_8.length; _i++) {
+                    var node = array_8[_i];
+                    visitNode(node);
+                }
+            }
+        }
+        function shouldCheckNode(node) {
+            switch (node.kind) {
+                case 10:
+                case 8:
+                case 75:
+                    return true;
+            }
+            return false;
+        }
+        function adjustIntersectingElement(element, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta) {
+            ts.Debug.assert(element.end >= changeStart, "Adjusting an element that was entirely before the change range");
+            ts.Debug.assert(element.pos <= changeRangeOldEnd, "Adjusting an element that was entirely after the change range");
+            ts.Debug.assert(element.pos <= element.end);
+            element.pos = Math.min(element.pos, changeRangeNewEnd);
+            if (element.end >= changeRangeOldEnd) {
+                element.end += delta;
+            }
+            else {
+                element.end = Math.min(element.end, changeRangeNewEnd);
+            }
+            ts.Debug.assert(element.pos <= element.end);
+            if (element.parent) {
+                ts.Debug.assert(element.pos >= element.parent.pos);
+                ts.Debug.assert(element.end <= element.parent.end);
+            }
+        }
+        function checkNodePositions(node, aggressiveChecks) {
+            if (aggressiveChecks) {
+                var pos_2 = node.pos;
+                var visitNode_1 = function (child) {
+                    ts.Debug.assert(child.pos >= pos_2);
+                    pos_2 = child.end;
+                };
+                if (ts.hasJSDocNodes(node)) {
+                    for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
+                        var jsDocComment = _a[_i];
+                        visitNode_1(jsDocComment);
+                    }
+                }
+                forEachChild(node, visitNode_1);
+                ts.Debug.assert(pos_2 <= node.end);
+            }
+        }
+        function updateTokenPositionsAndMarkElements(sourceFile, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta, oldText, newText, aggressiveChecks) {
+            visitNode(sourceFile);
+            return;
+            function visitNode(child) {
+                ts.Debug.assert(child.pos <= child.end);
+                if (child.pos > changeRangeOldEnd) {
+                    moveElementEntirelyPastChangeRange(child, false, delta, oldText, newText, aggressiveChecks);
+                    return;
+                }
+                var fullEnd = child.end;
+                if (fullEnd >= changeStart) {
+                    child.intersectsChange = true;
+                    child._children = undefined;
+                    adjustIntersectingElement(child, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta);
+                    forEachChild(child, visitNode, visitArray);
+                    if (ts.hasJSDocNodes(child)) {
+                        for (var _i = 0, _a = child.jsDoc; _i < _a.length; _i++) {
+                            var jsDocComment = _a[_i];
+                            visitNode(jsDocComment);
+                        }
+                    }
+                    checkNodePositions(child, aggressiveChecks);
+                    return;
+                }
+                ts.Debug.assert(fullEnd < changeStart);
+            }
+            function visitArray(array) {
+                ts.Debug.assert(array.pos <= array.end);
+                if (array.pos > changeRangeOldEnd) {
+                    moveElementEntirelyPastChangeRange(array, true, delta, oldText, newText, aggressiveChecks);
+                    return;
+                }
+                var fullEnd = array.end;
+                if (fullEnd >= changeStart) {
+                    array.intersectsChange = true;
+                    array._children = undefined;
+                    adjustIntersectingElement(array, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta);
+                    for (var _i = 0, array_9 = array; _i < array_9.length; _i++) {
+                        var node = array_9[_i];
+                        visitNode(node);
+                    }
+                    return;
+                }
+                ts.Debug.assert(fullEnd < changeStart);
+            }
+        }
+        function extendToAffectedRange(sourceFile, changeRange) {
+            var maxLookahead = 1;
+            var start = changeRange.span.start;
+            for (var i = 0; start > 0 && i <= maxLookahead; i++) {
+                var nearestNode = findNearestNodeStartingBeforeOrAtPosition(sourceFile, start);
+                ts.Debug.assert(nearestNode.pos <= start);
+                var position = nearestNode.pos;
+                start = Math.max(0, position - 1);
+            }
+            var finalSpan = ts.createTextSpanFromBounds(start, ts.textSpanEnd(changeRange.span));
+            var finalLength = changeRange.newLength + (changeRange.span.start - start);
+            return ts.createTextChangeRange(finalSpan, finalLength);
+        }
+        function findNearestNodeStartingBeforeOrAtPosition(sourceFile, position) {
+            var bestResult = sourceFile;
+            var lastNodeEntirelyBeforePosition;
+            forEachChild(sourceFile, visit);
+            if (lastNodeEntirelyBeforePosition) {
+                var lastChildOfLastEntireNodeBeforePosition = getLastDescendant(lastNodeEntirelyBeforePosition);
+                if (lastChildOfLastEntireNodeBeforePosition.pos > bestResult.pos) {
+                    bestResult = lastChildOfLastEntireNodeBeforePosition;
+                }
+            }
+            return bestResult;
+            function getLastDescendant(node) {
+                while (true) {
+                    var lastChild = ts.getLastChild(node);
+                    if (lastChild) {
+                        node = lastChild;
+                    }
+                    else {
+                        return node;
+                    }
+                }
+            }
+            function visit(child) {
+                if (ts.nodeIsMissing(child)) {
+                    return;
+                }
+                if (child.pos <= position) {
+                    if (child.pos >= bestResult.pos) {
+                        bestResult = child;
+                    }
+                    if (position < child.end) {
+                        forEachChild(child, visit);
+                        return true;
+                    }
+                    else {
+                        ts.Debug.assert(child.end <= position);
+                        lastNodeEntirelyBeforePosition = child;
+                    }
+                }
+                else {
+                    ts.Debug.assert(child.pos > position);
+                    return true;
+                }
+            }
+        }
+        function checkChangeRange(sourceFile, newText, textChangeRange, aggressiveChecks) {
+            var oldText = sourceFile.text;
+            if (textChangeRange) {
+                ts.Debug.assert((oldText.length - textChangeRange.span.length + textChangeRange.newLength) === newText.length);
+                if (aggressiveChecks || ts.Debug.shouldAssert(3)) {
+                    var oldTextPrefix = oldText.substr(0, textChangeRange.span.start);
+                    var newTextPrefix = newText.substr(0, textChangeRange.span.start);
+                    ts.Debug.assert(oldTextPrefix === newTextPrefix);
+                    var oldTextSuffix = oldText.substring(ts.textSpanEnd(textChangeRange.span), oldText.length);
+                    var newTextSuffix = newText.substring(ts.textSpanEnd(ts.textChangeRangeNewSpan(textChangeRange)), newText.length);
+                    ts.Debug.assert(oldTextSuffix === newTextSuffix);
+                }
+            }
+        }
+        function createSyntaxCursor(sourceFile) {
+            var currentArray = sourceFile.statements;
+            var currentArrayIndex = 0;
+            ts.Debug.assert(currentArrayIndex < currentArray.length);
+            var current = currentArray[currentArrayIndex];
+            var lastQueriedPosition = -1;
+            return {
+                currentNode: function (position) {
+                    if (position !== lastQueriedPosition) {
+                        if (current && current.end === position && currentArrayIndex < (currentArray.length - 1)) {
+                            currentArrayIndex++;
+                            current = currentArray[currentArrayIndex];
+                        }
+                        if (!current || current.pos !== position) {
+                            findHighestListElementThatStartsAtPosition(position);
+                        }
+                    }
+                    lastQueriedPosition = position;
+                    ts.Debug.assert(!current || current.pos === position);
+                    return current;
+                }
+            };
+            function findHighestListElementThatStartsAtPosition(position) {
+                currentArray = undefined;
+                currentArrayIndex = -1;
+                current = undefined;
+                forEachChild(sourceFile, visitNode, visitArray);
+                return;
+                function visitNode(node) {
+                    if (position >= node.pos && position < node.end) {
+                        forEachChild(node, visitNode, visitArray);
+                        return true;
+                    }
+                    return false;
+                }
+                function visitArray(array) {
+                    if (position >= array.pos && position < array.end) {
+                        for (var i = 0; i < array.length; i++) {
+                            var child = array[i];
+                            if (child) {
+                                if (child.pos === position) {
+                                    currentArray = array;
+                                    currentArrayIndex = i;
+                                    current = child;
+                                    return true;
+                                }
+                                else {
+                                    if (child.pos < position && position < child.end) {
+                                        forEachChild(child, visitNode, visitArray);
+                                        return true;
+                                    }
+                                }
+                            }
+                        }
+                    }
+                    return false;
+                }
+            }
+        }
+    })(IncrementalParser || (IncrementalParser = {}));
+    function isDeclarationFileName(fileName) {
+        return ts.fileExtensionIs(fileName, ".d.ts");
+    }
+    ts.isDeclarationFileName = isDeclarationFileName;
+    function processCommentPragmas(context, sourceText) {
+        var pragmas = [];
+        for (var _i = 0, _a = ts.getLeadingCommentRanges(sourceText, 0) || ts.emptyArray; _i < _a.length; _i++) {
+            var range = _a[_i];
+            var comment = sourceText.substring(range.pos, range.end);
+            extractPragmas(pragmas, range, comment);
+        }
+        context.pragmas = ts.createMap();
+        for (var _b = 0, pragmas_1 = pragmas; _b < pragmas_1.length; _b++) {
+            var pragma = pragmas_1[_b];
+            if (context.pragmas.has(pragma.name)) {
+                var currentValue = context.pragmas.get(pragma.name);
+                if (currentValue instanceof Array) {
+                    currentValue.push(pragma.args);
+                }
+                else {
+                    context.pragmas.set(pragma.name, [currentValue, pragma.args]);
+                }
+                continue;
+            }
+            context.pragmas.set(pragma.name, pragma.args);
+        }
+    }
+    ts.processCommentPragmas = processCommentPragmas;
+    function processPragmasIntoFields(context, reportDiagnostic) {
+        context.checkJsDirective = undefined;
+        context.referencedFiles = [];
+        context.typeReferenceDirectives = [];
+        context.libReferenceDirectives = [];
+        context.amdDependencies = [];
+        context.hasNoDefaultLib = false;
+        context.pragmas.forEach(function (entryOrList, key) {
+            switch (key) {
+                case "reference": {
+                    var referencedFiles_1 = context.referencedFiles;
+                    var typeReferenceDirectives_1 = context.typeReferenceDirectives;
+                    var libReferenceDirectives_1 = context.libReferenceDirectives;
+                    ts.forEach(ts.toArray(entryOrList), function (arg) {
+                        var _a = arg.arguments, types = _a.types, lib = _a.lib, path = _a.path;
+                        if (arg.arguments["no-default-lib"]) {
+                            context.hasNoDefaultLib = true;
+                        }
+                        else if (types) {
+                            typeReferenceDirectives_1.push({ pos: types.pos, end: types.end, fileName: types.value });
+                        }
+                        else if (lib) {
+                            libReferenceDirectives_1.push({ pos: lib.pos, end: lib.end, fileName: lib.value });
+                        }
+                        else if (path) {
+                            referencedFiles_1.push({ pos: path.pos, end: path.end, fileName: path.value });
+                        }
+                        else {
+                            reportDiagnostic(arg.range.pos, arg.range.end - arg.range.pos, ts.Diagnostics.Invalid_reference_directive_syntax);
+                        }
+                    });
+                    break;
+                }
+                case "amd-dependency": {
+                    context.amdDependencies = ts.map(ts.toArray(entryOrList), function (x) { return ({ name: x.arguments.name, path: x.arguments.path }); });
+                    break;
+                }
+                case "amd-module": {
+                    if (entryOrList instanceof Array) {
+                        for (var _i = 0, entryOrList_1 = entryOrList; _i < entryOrList_1.length; _i++) {
+                            var entry = entryOrList_1[_i];
+                            if (context.moduleName) {
+                                reportDiagnostic(entry.range.pos, entry.range.end - entry.range.pos, ts.Diagnostics.An_AMD_module_cannot_have_multiple_name_assignments);
+                            }
+                            context.moduleName = entry.arguments.name;
+                        }
+                    }
+                    else {
+                        context.moduleName = entryOrList.arguments.name;
+                    }
+                    break;
+                }
+                case "ts-nocheck":
+                case "ts-check": {
+                    ts.forEach(ts.toArray(entryOrList), function (entry) {
+                        if (!context.checkJsDirective || entry.range.pos > context.checkJsDirective.pos) {
+                            context.checkJsDirective = {
+                                enabled: key === "ts-check",
+                                end: entry.range.end,
+                                pos: entry.range.pos
+                            };
+                        }
+                    });
+                    break;
+                }
+                case "jsx": return;
+                default: ts.Debug.fail("Unhandled pragma kind");
+            }
+        });
+    }
+    ts.processPragmasIntoFields = processPragmasIntoFields;
+    var namedArgRegExCache = ts.createMap();
+    function getNamedArgRegEx(name) {
+        if (namedArgRegExCache.has(name)) {
+            return namedArgRegExCache.get(name);
+        }
+        var result = new RegExp("(\\s" + name + "\\s*=\\s*)('|\")(.+?)\\2", "im");
+        namedArgRegExCache.set(name, result);
+        return result;
+    }
+    var tripleSlashXMLCommentStartRegEx = /^\/\/\/\s*<(\S+)\s.*?\/>/im;
+    var singleLinePragmaRegEx = /^\/\/\/?\s*@(\S+)\s*(.*)\s*$/im;
+    function extractPragmas(pragmas, range, text) {
+        var tripleSlash = range.kind === 2 && tripleSlashXMLCommentStartRegEx.exec(text);
+        if (tripleSlash) {
+            var name = tripleSlash[1].toLowerCase();
+            var pragma = ts.commentPragmas[name];
+            if (!pragma || !(pragma.kind & 1)) {
+                return;
+            }
+            if (pragma.args) {
+                var argument = {};
+                for (var _i = 0, _a = pragma.args; _i < _a.length; _i++) {
+                    var arg = _a[_i];
+                    var matcher = getNamedArgRegEx(arg.name);
+                    var matchResult = matcher.exec(text);
+                    if (!matchResult && !arg.optional) {
+                        return;
+                    }
+                    else if (matchResult) {
+                        if (arg.captureSpan) {
+                            var startPos = range.pos + matchResult.index + matchResult[1].length + matchResult[2].length;
+                            argument[arg.name] = {
+                                value: matchResult[3],
+                                pos: startPos,
+                                end: startPos + matchResult[3].length
+                            };
+                        }
+                        else {
+                            argument[arg.name] = matchResult[3];
+                        }
+                    }
+                }
+                pragmas.push({ name: name, args: { arguments: argument, range: range } });
+            }
+            else {
+                pragmas.push({ name: name, args: { arguments: {}, range: range } });
+            }
+            return;
+        }
+        var singleLine = range.kind === 2 && singleLinePragmaRegEx.exec(text);
+        if (singleLine) {
+            return addPragmaForMatch(pragmas, range, 2, singleLine);
+        }
+        if (range.kind === 3) {
+            var multiLinePragmaRegEx = /\s*@(\S+)\s*(.*)\s*$/gim;
+            var multiLineMatch = void 0;
+            while (multiLineMatch = multiLinePragmaRegEx.exec(text)) {
+                addPragmaForMatch(pragmas, range, 4, multiLineMatch);
+            }
+        }
+    }
+    function addPragmaForMatch(pragmas, range, kind, match) {
+        if (!match)
+            return;
+        var name = match[1].toLowerCase();
+        var pragma = ts.commentPragmas[name];
+        if (!pragma || !(pragma.kind & kind)) {
+            return;
+        }
+        var args = match[2];
+        var argument = getNamedPragmaArguments(pragma, args);
+        if (argument === "fail")
+            return;
+        pragmas.push({ name: name, args: { arguments: argument, range: range } });
+        return;
+    }
+    function getNamedPragmaArguments(pragma, text) {
+        if (!text)
+            return {};
+        if (!pragma.args)
+            return {};
+        var args = text.split(/\s+/);
+        var argMap = {};
+        for (var i = 0; i < pragma.args.length; i++) {
+            var argument = pragma.args[i];
+            if (!args[i] && !argument.optional) {
+                return "fail";
+            }
+            if (argument.captureSpan) {
+                return ts.Debug.fail("Capture spans not yet implemented for non-xml pragmas");
+            }
+            argMap[argument.name] = args[i];
+        }
+        return argMap;
+    }
+    function tagNamesAreEquivalent(lhs, rhs) {
+        if (lhs.kind !== rhs.kind) {
+            return false;
+        }
+        if (lhs.kind === 75) {
+            return lhs.escapedText === rhs.escapedText;
+        }
+        if (lhs.kind === 104) {
+            return true;
+        }
+        return lhs.name.escapedText === rhs.name.escapedText &&
+            tagNamesAreEquivalent(lhs.expression, rhs.expression);
+    }
+    ts.tagNamesAreEquivalent = tagNamesAreEquivalent;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    ts.compileOnSaveCommandLineOption = { name: "compileOnSave", type: "boolean" };
+    var libEntries = [
+        ["es5", "lib.es5.d.ts"],
+        ["es6", "lib.es2015.d.ts"],
+        ["es2015", "lib.es2015.d.ts"],
+        ["es7", "lib.es2016.d.ts"],
+        ["es2016", "lib.es2016.d.ts"],
+        ["es2017", "lib.es2017.d.ts"],
+        ["es2018", "lib.es2018.d.ts"],
+        ["es2019", "lib.es2019.d.ts"],
+        ["es2020", "lib.es2020.d.ts"],
+        ["esnext", "lib.esnext.d.ts"],
+        ["dom", "lib.dom.d.ts"],
+        ["dom.iterable", "lib.dom.iterable.d.ts"],
+        ["webworker", "lib.webworker.d.ts"],
+        ["webworker.importscripts", "lib.webworker.importscripts.d.ts"],
+        ["scripthost", "lib.scripthost.d.ts"],
+        ["es2015.core", "lib.es2015.core.d.ts"],
+        ["es2015.collection", "lib.es2015.collection.d.ts"],
+        ["es2015.generator", "lib.es2015.generator.d.ts"],
+        ["es2015.iterable", "lib.es2015.iterable.d.ts"],
+        ["es2015.promise", "lib.es2015.promise.d.ts"],
+        ["es2015.proxy", "lib.es2015.proxy.d.ts"],
+        ["es2015.reflect", "lib.es2015.reflect.d.ts"],
+        ["es2015.symbol", "lib.es2015.symbol.d.ts"],
+        ["es2015.symbol.wellknown", "lib.es2015.symbol.wellknown.d.ts"],
+        ["es2016.array.include", "lib.es2016.array.include.d.ts"],
+        ["es2017.object", "lib.es2017.object.d.ts"],
+        ["es2017.sharedmemory", "lib.es2017.sharedmemory.d.ts"],
+        ["es2017.string", "lib.es2017.string.d.ts"],
+        ["es2017.intl", "lib.es2017.intl.d.ts"],
+        ["es2017.typedarrays", "lib.es2017.typedarrays.d.ts"],
+        ["es2018.asyncgenerator", "lib.es2018.asyncgenerator.d.ts"],
+        ["es2018.asynciterable", "lib.es2018.asynciterable.d.ts"],
+        ["es2018.intl", "lib.es2018.intl.d.ts"],
+        ["es2018.promise", "lib.es2018.promise.d.ts"],
+        ["es2018.regexp", "lib.es2018.regexp.d.ts"],
+        ["es2019.array", "lib.es2019.array.d.ts"],
+        ["es2019.object", "lib.es2019.object.d.ts"],
+        ["es2019.string", "lib.es2019.string.d.ts"],
+        ["es2019.symbol", "lib.es2019.symbol.d.ts"],
+        ["es2020.bigint", "lib.es2020.bigint.d.ts"],
+        ["es2020.promise", "lib.es2020.promise.d.ts"],
+        ["es2020.string", "lib.es2020.string.d.ts"],
+        ["es2020.symbol.wellknown", "lib.es2020.symbol.wellknown.d.ts"],
+        ["esnext.array", "lib.es2019.array.d.ts"],
+        ["esnext.symbol", "lib.es2019.symbol.d.ts"],
+        ["esnext.asynciterable", "lib.es2018.asynciterable.d.ts"],
+        ["esnext.intl", "lib.esnext.intl.d.ts"],
+        ["esnext.bigint", "lib.es2020.bigint.d.ts"],
+        ["esnext.string", "lib.esnext.string.d.ts"],
+        ["esnext.promise", "lib.esnext.promise.d.ts"]
+    ];
+    ts.libs = libEntries.map(function (entry) { return entry[0]; });
+    ts.libMap = ts.createMapFromEntries(libEntries);
+    ts.optionsForWatch = [
+        {
+            name: "watchFile",
+            type: ts.createMapFromTemplate({
+                fixedpollinginterval: ts.WatchFileKind.FixedPollingInterval,
+                prioritypollinginterval: ts.WatchFileKind.PriorityPollingInterval,
+                dynamicprioritypolling: ts.WatchFileKind.DynamicPriorityPolling,
+                usefsevents: ts.WatchFileKind.UseFsEvents,
+                usefseventsonparentdirectory: ts.WatchFileKind.UseFsEventsOnParentDirectory,
+            }),
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Specify_strategy_for_watching_file_Colon_FixedPollingInterval_default_PriorityPollingInterval_DynamicPriorityPolling_UseFsEvents_UseFsEventsOnParentDirectory,
+        },
+        {
+            name: "watchDirectory",
+            type: ts.createMapFromTemplate({
+                usefsevents: ts.WatchDirectoryKind.UseFsEvents,
+                fixedpollinginterval: ts.WatchDirectoryKind.FixedPollingInterval,
+                dynamicprioritypolling: ts.WatchDirectoryKind.DynamicPriorityPolling,
+            }),
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Specify_strategy_for_watching_directory_on_platforms_that_don_t_support_recursive_watching_natively_Colon_UseFsEvents_default_FixedPollingInterval_DynamicPriorityPolling,
+        },
+        {
+            name: "fallbackPolling",
+            type: ts.createMapFromTemplate({
+                fixedinterval: ts.PollingWatchKind.FixedInterval,
+                priorityinterval: ts.PollingWatchKind.PriorityInterval,
+                dynamicpriority: ts.PollingWatchKind.DynamicPriority,
+            }),
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Specify_strategy_for_creating_a_polling_watch_when_it_fails_to_create_using_file_system_events_Colon_FixedInterval_default_PriorityInterval_DynamicPriority,
+        },
+        {
+            name: "synchronousWatchDirectory",
+            type: "boolean",
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Synchronously_call_callbacks_and_update_the_state_of_directory_watchers_on_platforms_that_don_t_support_recursive_watching_natively,
+        },
+    ];
+    ts.commonOptionsWithBuild = [
+        {
+            name: "help",
+            shortName: "h",
+            type: "boolean",
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Command_line_Options,
+            description: ts.Diagnostics.Print_this_message,
+        },
+        {
+            name: "help",
+            shortName: "?",
+            type: "boolean"
+        },
+        {
+            name: "watch",
+            shortName: "w",
+            type: "boolean",
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Command_line_Options,
+            description: ts.Diagnostics.Watch_input_files,
+        },
+        {
+            name: "preserveWatchOutput",
+            type: "boolean",
+            showInSimplifiedHelpView: false,
+            category: ts.Diagnostics.Command_line_Options,
+            description: ts.Diagnostics.Whether_to_keep_outdated_console_output_in_watch_mode_instead_of_clearing_the_screen,
+        },
+        {
+            name: "listFiles",
+            type: "boolean",
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Print_names_of_files_part_of_the_compilation
+        },
+        {
+            name: "listEmittedFiles",
+            type: "boolean",
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Print_names_of_generated_files_part_of_the_compilation
+        },
+        {
+            name: "pretty",
+            type: "boolean",
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Command_line_Options,
+            description: ts.Diagnostics.Stylize_errors_and_messages_using_color_and_context_experimental
+        },
+        {
+            name: "traceResolution",
+            type: "boolean",
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Enable_tracing_of_the_name_resolution_process
+        },
+        {
+            name: "diagnostics",
+            type: "boolean",
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Show_diagnostic_information
+        },
+        {
+            name: "extendedDiagnostics",
+            type: "boolean",
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Show_verbose_diagnostic_information
+        },
+        {
+            name: "generateCpuProfile",
+            type: "string",
+            isFilePath: true,
+            paramType: ts.Diagnostics.FILE_OR_DIRECTORY,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Generates_a_CPU_profile
+        },
+        {
+            name: "incremental",
+            shortName: "i",
+            type: "boolean",
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Enable_incremental_compilation,
+            transpileOptionValue: undefined
+        },
+        {
+            name: "assumeChangesOnlyAffectDirectDependencies",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            affectsEmit: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Have_recompiles_in_incremental_and_watch_assume_that_changes_within_a_file_will_only_affect_files_directly_depending_on_it
+        },
+        {
+            name: "locale",
+            type: "string",
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.The_locale_used_when_displaying_messages_to_the_user_e_g_en_us
+        },
+    ];
+    ts.optionDeclarations = __spreadArrays(ts.commonOptionsWithBuild, [
+        {
+            name: "all",
+            type: "boolean",
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Command_line_Options,
+            description: ts.Diagnostics.Show_all_compiler_options,
+        },
+        {
+            name: "version",
+            shortName: "v",
+            type: "boolean",
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Command_line_Options,
+            description: ts.Diagnostics.Print_the_compiler_s_version,
+        },
+        {
+            name: "init",
+            type: "boolean",
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Command_line_Options,
+            description: ts.Diagnostics.Initializes_a_TypeScript_project_and_creates_a_tsconfig_json_file,
+        },
+        {
+            name: "project",
+            shortName: "p",
+            type: "string",
+            isFilePath: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Command_line_Options,
+            paramType: ts.Diagnostics.FILE_OR_DIRECTORY,
+            description: ts.Diagnostics.Compile_the_project_given_the_path_to_its_configuration_file_or_to_a_folder_with_a_tsconfig_json,
+        },
+        {
+            name: "build",
+            type: "boolean",
+            shortName: "b",
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Command_line_Options,
+            description: ts.Diagnostics.Build_one_or_more_projects_and_their_dependencies_if_out_of_date
+        },
+        {
+            name: "showConfig",
+            type: "boolean",
+            category: ts.Diagnostics.Command_line_Options,
+            isCommandLineOnly: true,
+            description: ts.Diagnostics.Print_the_final_configuration_instead_of_building
+        },
+        {
+            name: "listFilesOnly",
+            type: "boolean",
+            category: ts.Diagnostics.Command_line_Options,
+            affectsSemanticDiagnostics: true,
+            affectsEmit: true,
+            isCommandLineOnly: true,
+            description: ts.Diagnostics.Print_names_of_files_that_are_part_of_the_compilation_and_then_stop_processing
+        },
+        {
+            name: "target",
+            shortName: "t",
+            type: ts.createMapFromTemplate({
+                es3: 0,
+                es5: 1,
+                es6: 2,
+                es2015: 2,
+                es2016: 3,
+                es2017: 4,
+                es2018: 5,
+                es2019: 6,
+                es2020: 7,
+                esnext: 99,
+            }),
+            affectsSourceFile: true,
+            affectsModuleResolution: true,
+            affectsEmit: true,
+            paramType: ts.Diagnostics.VERSION,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Specify_ECMAScript_target_version_Colon_ES3_default_ES5_ES2015_ES2016_ES2017_ES2018_ES2019_ES2020_or_ESNEXT,
+        },
+        {
+            name: "module",
+            shortName: "m",
+            type: ts.createMapFromTemplate({
+                none: ts.ModuleKind.None,
+                commonjs: ts.ModuleKind.CommonJS,
+                amd: ts.ModuleKind.AMD,
+                system: ts.ModuleKind.System,
+                umd: ts.ModuleKind.UMD,
+                es6: ts.ModuleKind.ES2015,
+                es2015: ts.ModuleKind.ES2015,
+                es2020: ts.ModuleKind.ES2020,
+                esnext: ts.ModuleKind.ESNext
+            }),
+            affectsModuleResolution: true,
+            affectsEmit: true,
+            paramType: ts.Diagnostics.KIND,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Specify_module_code_generation_Colon_none_commonjs_amd_system_umd_es2015_es2020_or_ESNext,
+        },
+        {
+            name: "lib",
+            type: "list",
+            element: {
+                name: "lib",
+                type: ts.libMap
+            },
+            affectsModuleResolution: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Specify_library_files_to_be_included_in_the_compilation,
+            transpileOptionValue: undefined
+        },
+        {
+            name: "allowJs",
+            type: "boolean",
+            affectsModuleResolution: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Allow_javascript_files_to_be_compiled
+        },
+        {
+            name: "checkJs",
+            type: "boolean",
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Report_errors_in_js_files
+        },
+        {
+            name: "jsx",
+            type: ts.createMapFromTemplate({
+                "preserve": 1,
+                "react-native": 3,
+                "react": 2
+            }),
+            affectsSourceFile: true,
+            paramType: ts.Diagnostics.KIND,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Specify_JSX_code_generation_Colon_preserve_react_native_or_react,
+        },
+        {
+            name: "declaration",
+            shortName: "d",
+            type: "boolean",
+            affectsEmit: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Generates_corresponding_d_ts_file,
+            transpileOptionValue: undefined
+        },
+        {
+            name: "declarationMap",
+            type: "boolean",
+            affectsEmit: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Generates_a_sourcemap_for_each_corresponding_d_ts_file,
+            transpileOptionValue: undefined
+        },
+        {
+            name: "emitDeclarationOnly",
+            type: "boolean",
+            affectsEmit: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Only_emit_d_ts_declaration_files,
+            transpileOptionValue: undefined
+        },
+        {
+            name: "sourceMap",
+            type: "boolean",
+            affectsEmit: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Generates_corresponding_map_file,
+        },
+        {
+            name: "outFile",
+            type: "string",
+            affectsEmit: true,
+            isFilePath: true,
+            paramType: ts.Diagnostics.FILE,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Concatenate_and_emit_output_to_single_file,
+            transpileOptionValue: undefined
+        },
+        {
+            name: "outDir",
+            type: "string",
+            affectsEmit: true,
+            isFilePath: true,
+            paramType: ts.Diagnostics.DIRECTORY,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Redirect_output_structure_to_the_directory,
+        },
+        {
+            name: "rootDir",
+            type: "string",
+            affectsEmit: true,
+            isFilePath: true,
+            paramType: ts.Diagnostics.LOCATION,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Specify_the_root_directory_of_input_files_Use_to_control_the_output_directory_structure_with_outDir,
+        },
+        {
+            name: "composite",
+            type: "boolean",
+            affectsEmit: true,
+            isTSConfigOnly: true,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Enable_project_compilation,
+            transpileOptionValue: undefined
+        },
+        {
+            name: "tsBuildInfoFile",
+            type: "string",
+            affectsEmit: true,
+            isFilePath: true,
+            paramType: ts.Diagnostics.FILE,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Specify_file_to_store_incremental_compilation_information,
+            transpileOptionValue: undefined
+        },
+        {
+            name: "removeComments",
+            type: "boolean",
+            affectsEmit: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Do_not_emit_comments_to_output,
+        },
+        {
+            name: "noEmit",
+            type: "boolean",
+            affectsEmit: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Do_not_emit_outputs,
+            transpileOptionValue: undefined
+        },
+        {
+            name: "importHelpers",
+            type: "boolean",
+            affectsEmit: true,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Import_emit_helpers_from_tslib
+        },
+        {
+            name: "importsNotUsedAsValues",
+            type: ts.createMapFromTemplate({
+                remove: 0,
+                preserve: 1,
+                error: 2
+            }),
+            affectsEmit: true,
+            affectsSemanticDiagnostics: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Specify_emit_Slashchecking_behavior_for_imports_that_are_only_used_for_types
+        },
+        {
+            name: "downlevelIteration",
+            type: "boolean",
+            affectsEmit: true,
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Provide_full_support_for_iterables_in_for_of_spread_and_destructuring_when_targeting_ES5_or_ES3
+        },
+        {
+            name: "isolatedModules",
+            type: "boolean",
+            category: ts.Diagnostics.Basic_Options,
+            description: ts.Diagnostics.Transpile_each_file_as_a_separate_module_similar_to_ts_transpileModule,
+            transpileOptionValue: true
+        },
+        {
+            name: "strict",
+            type: "boolean",
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Strict_Type_Checking_Options,
+            description: ts.Diagnostics.Enable_all_strict_type_checking_options
+        },
+        {
+            name: "noImplicitAny",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            strictFlag: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Strict_Type_Checking_Options,
+            description: ts.Diagnostics.Raise_error_on_expressions_and_declarations_with_an_implied_any_type
+        },
+        {
+            name: "strictNullChecks",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            strictFlag: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Strict_Type_Checking_Options,
+            description: ts.Diagnostics.Enable_strict_null_checks
+        },
+        {
+            name: "strictFunctionTypes",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            strictFlag: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Strict_Type_Checking_Options,
+            description: ts.Diagnostics.Enable_strict_checking_of_function_types
+        },
+        {
+            name: "strictBindCallApply",
+            type: "boolean",
+            strictFlag: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Strict_Type_Checking_Options,
+            description: ts.Diagnostics.Enable_strict_bind_call_and_apply_methods_on_functions
+        },
+        {
+            name: "strictPropertyInitialization",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            strictFlag: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Strict_Type_Checking_Options,
+            description: ts.Diagnostics.Enable_strict_checking_of_property_initialization_in_classes
+        },
+        {
+            name: "noImplicitThis",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            strictFlag: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Strict_Type_Checking_Options,
+            description: ts.Diagnostics.Raise_error_on_this_expressions_with_an_implied_any_type,
+        },
+        {
+            name: "alwaysStrict",
+            type: "boolean",
+            affectsSourceFile: true,
+            strictFlag: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Strict_Type_Checking_Options,
+            description: ts.Diagnostics.Parse_in_strict_mode_and_emit_use_strict_for_each_source_file
+        },
+        {
+            name: "noUnusedLocals",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Additional_Checks,
+            description: ts.Diagnostics.Report_errors_on_unused_locals,
+        },
+        {
+            name: "noUnusedParameters",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Additional_Checks,
+            description: ts.Diagnostics.Report_errors_on_unused_parameters,
+        },
+        {
+            name: "noImplicitReturns",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Additional_Checks,
+            description: ts.Diagnostics.Report_error_when_not_all_code_paths_in_function_return_a_value
+        },
+        {
+            name: "noFallthroughCasesInSwitch",
+            type: "boolean",
+            affectsBindDiagnostics: true,
+            affectsSemanticDiagnostics: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Additional_Checks,
+            description: ts.Diagnostics.Report_errors_for_fallthrough_cases_in_switch_statement
+        },
+        {
+            name: "moduleResolution",
+            type: ts.createMapFromTemplate({
+                node: ts.ModuleResolutionKind.NodeJs,
+                classic: ts.ModuleResolutionKind.Classic,
+            }),
+            affectsModuleResolution: true,
+            paramType: ts.Diagnostics.STRATEGY,
+            category: ts.Diagnostics.Module_Resolution_Options,
+            description: ts.Diagnostics.Specify_module_resolution_strategy_Colon_node_Node_js_or_classic_TypeScript_pre_1_6,
+        },
+        {
+            name: "baseUrl",
+            type: "string",
+            affectsModuleResolution: true,
+            isFilePath: true,
+            category: ts.Diagnostics.Module_Resolution_Options,
+            description: ts.Diagnostics.Base_directory_to_resolve_non_absolute_module_names
+        },
+        {
+            name: "paths",
+            type: "object",
+            affectsModuleResolution: true,
+            isTSConfigOnly: true,
+            category: ts.Diagnostics.Module_Resolution_Options,
+            description: ts.Diagnostics.A_series_of_entries_which_re_map_imports_to_lookup_locations_relative_to_the_baseUrl,
+            transpileOptionValue: undefined
+        },
+        {
+            name: "rootDirs",
+            type: "list",
+            isTSConfigOnly: true,
+            element: {
+                name: "rootDirs",
+                type: "string",
+                isFilePath: true
+            },
+            affectsModuleResolution: true,
+            category: ts.Diagnostics.Module_Resolution_Options,
+            description: ts.Diagnostics.List_of_root_folders_whose_combined_content_represents_the_structure_of_the_project_at_runtime,
+            transpileOptionValue: undefined
+        },
+        {
+            name: "typeRoots",
+            type: "list",
+            element: {
+                name: "typeRoots",
+                type: "string",
+                isFilePath: true
+            },
+            affectsModuleResolution: true,
+            category: ts.Diagnostics.Module_Resolution_Options,
+            description: ts.Diagnostics.List_of_folders_to_include_type_definitions_from
+        },
+        {
+            name: "types",
+            type: "list",
+            element: {
+                name: "types",
+                type: "string"
+            },
+            affectsModuleResolution: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Module_Resolution_Options,
+            description: ts.Diagnostics.Type_declaration_files_to_be_included_in_compilation,
+            transpileOptionValue: undefined
+        },
+        {
+            name: "allowSyntheticDefaultImports",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            category: ts.Diagnostics.Module_Resolution_Options,
+            description: ts.Diagnostics.Allow_default_imports_from_modules_with_no_default_export_This_does_not_affect_code_emit_just_typechecking
+        },
+        {
+            name: "esModuleInterop",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            affectsEmit: true,
+            showInSimplifiedHelpView: true,
+            category: ts.Diagnostics.Module_Resolution_Options,
+            description: ts.Diagnostics.Enables_emit_interoperability_between_CommonJS_and_ES_Modules_via_creation_of_namespace_objects_for_all_imports_Implies_allowSyntheticDefaultImports
+        },
+        {
+            name: "preserveSymlinks",
+            type: "boolean",
+            category: ts.Diagnostics.Module_Resolution_Options,
+            description: ts.Diagnostics.Do_not_resolve_the_real_path_of_symlinks,
+        },
+        {
+            name: "allowUmdGlobalAccess",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            category: ts.Diagnostics.Module_Resolution_Options,
+            description: ts.Diagnostics.Allow_accessing_UMD_globals_from_modules,
+        },
+        {
+            name: "sourceRoot",
+            type: "string",
+            affectsEmit: true,
+            paramType: ts.Diagnostics.LOCATION,
+            category: ts.Diagnostics.Source_Map_Options,
+            description: ts.Diagnostics.Specify_the_location_where_debugger_should_locate_TypeScript_files_instead_of_source_locations,
+        },
+        {
+            name: "mapRoot",
+            type: "string",
+            affectsEmit: true,
+            paramType: ts.Diagnostics.LOCATION,
+            category: ts.Diagnostics.Source_Map_Options,
+            description: ts.Diagnostics.Specify_the_location_where_debugger_should_locate_map_files_instead_of_generated_locations,
+        },
+        {
+            name: "inlineSourceMap",
+            type: "boolean",
+            affectsEmit: true,
+            category: ts.Diagnostics.Source_Map_Options,
+            description: ts.Diagnostics.Emit_a_single_file_with_source_maps_instead_of_having_a_separate_file
+        },
+        {
+            name: "inlineSources",
+            type: "boolean",
+            affectsEmit: true,
+            category: ts.Diagnostics.Source_Map_Options,
+            description: ts.Diagnostics.Emit_the_source_alongside_the_sourcemaps_within_a_single_file_requires_inlineSourceMap_or_sourceMap_to_be_set
+        },
+        {
+            name: "experimentalDecorators",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            category: ts.Diagnostics.Experimental_Options,
+            description: ts.Diagnostics.Enables_experimental_support_for_ES7_decorators
+        },
+        {
+            name: "emitDecoratorMetadata",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            affectsEmit: true,
+            category: ts.Diagnostics.Experimental_Options,
+            description: ts.Diagnostics.Enables_experimental_support_for_emitting_type_metadata_for_decorators
+        },
+        {
+            name: "jsxFactory",
+            type: "string",
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Specify_the_JSX_factory_function_to_use_when_targeting_react_JSX_emit_e_g_React_createElement_or_h
+        },
+        {
+            name: "resolveJsonModule",
+            type: "boolean",
+            affectsModuleResolution: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Include_modules_imported_with_json_extension
+        },
+        {
+            name: "out",
+            type: "string",
+            affectsEmit: true,
+            isFilePath: false,
+            category: ts.Diagnostics.Advanced_Options,
+            paramType: ts.Diagnostics.FILE,
+            description: ts.Diagnostics.Deprecated_Use_outFile_instead_Concatenate_and_emit_output_to_single_file,
+            transpileOptionValue: undefined
+        },
+        {
+            name: "reactNamespace",
+            type: "string",
+            affectsEmit: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Deprecated_Use_jsxFactory_instead_Specify_the_object_invoked_for_createElement_when_targeting_react_JSX_emit
+        },
+        {
+            name: "skipDefaultLibCheck",
+            type: "boolean",
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Deprecated_Use_skipLibCheck_instead_Skip_type_checking_of_default_library_declaration_files
+        },
+        {
+            name: "charset",
+            type: "string",
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.The_character_set_of_the_input_files
+        },
+        {
+            name: "emitBOM",
+            type: "boolean",
+            affectsEmit: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Emit_a_UTF_8_Byte_Order_Mark_BOM_in_the_beginning_of_output_files
+        },
+        {
+            name: "newLine",
+            type: ts.createMapFromTemplate({
+                crlf: 0,
+                lf: 1
+            }),
+            affectsEmit: true,
+            paramType: ts.Diagnostics.NEWLINE,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Specify_the_end_of_line_sequence_to_be_used_when_emitting_files_Colon_CRLF_dos_or_LF_unix,
+        },
+        {
+            name: "noErrorTruncation",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Do_not_truncate_error_messages
+        },
+        {
+            name: "noLib",
+            type: "boolean",
+            affectsModuleResolution: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Do_not_include_the_default_library_file_lib_d_ts,
+            transpileOptionValue: true
+        },
+        {
+            name: "noResolve",
+            type: "boolean",
+            affectsModuleResolution: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Do_not_add_triple_slash_references_or_imported_modules_to_the_list_of_compiled_files,
+            transpileOptionValue: true
+        },
+        {
+            name: "stripInternal",
+            type: "boolean",
+            affectsEmit: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Do_not_emit_declarations_for_code_that_has_an_internal_annotation,
+        },
+        {
+            name: "disableSizeLimit",
+            type: "boolean",
+            affectsSourceFile: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Disable_size_limitations_on_JavaScript_projects
+        },
+        {
+            name: "disableSourceOfProjectReferenceRedirect",
+            type: "boolean",
+            isTSConfigOnly: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Disable_use_of_source_files_instead_of_declaration_files_from_referenced_projects
+        },
+        {
+            name: "disableSolutionSearching",
+            type: "boolean",
+            isTSConfigOnly: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Disable_solution_searching_for_this_project
+        },
+        {
+            name: "noImplicitUseStrict",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Do_not_emit_use_strict_directives_in_module_output
+        },
+        {
+            name: "noEmitHelpers",
+            type: "boolean",
+            affectsEmit: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Do_not_generate_custom_helper_functions_like_extends_in_compiled_output
+        },
+        {
+            name: "noEmitOnError",
+            type: "boolean",
+            affectsEmit: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Do_not_emit_outputs_if_any_errors_were_reported,
+            transpileOptionValue: undefined
+        },
+        {
+            name: "preserveConstEnums",
+            type: "boolean",
+            affectsEmit: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Do_not_erase_const_enum_declarations_in_generated_code
+        },
+        {
+            name: "declarationDir",
+            type: "string",
+            affectsEmit: true,
+            isFilePath: true,
+            paramType: ts.Diagnostics.DIRECTORY,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Output_directory_for_generated_declaration_files,
+            transpileOptionValue: undefined
+        },
+        {
+            name: "skipLibCheck",
+            type: "boolean",
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Skip_type_checking_of_declaration_files,
+        },
+        {
+            name: "allowUnusedLabels",
+            type: "boolean",
+            affectsBindDiagnostics: true,
+            affectsSemanticDiagnostics: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Do_not_report_errors_on_unused_labels
+        },
+        {
+            name: "allowUnreachableCode",
+            type: "boolean",
+            affectsBindDiagnostics: true,
+            affectsSemanticDiagnostics: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Do_not_report_errors_on_unreachable_code
+        },
+        {
+            name: "suppressExcessPropertyErrors",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Suppress_excess_property_checks_for_object_literals,
+        },
+        {
+            name: "suppressImplicitAnyIndexErrors",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Suppress_noImplicitAny_errors_for_indexing_objects_lacking_index_signatures,
+        },
+        {
+            name: "forceConsistentCasingInFileNames",
+            type: "boolean",
+            affectsModuleResolution: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Disallow_inconsistently_cased_references_to_the_same_file
+        },
+        {
+            name: "maxNodeModuleJsDepth",
+            type: "number",
+            affectsModuleResolution: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.The_maximum_dependency_depth_to_search_under_node_modules_and_load_JavaScript_files
+        },
+        {
+            name: "noStrictGenericChecks",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Disable_strict_checking_of_generic_signatures_in_function_types,
+        },
+        {
+            name: "useDefineForClassFields",
+            type: "boolean",
+            affectsSemanticDiagnostics: true,
+            affectsEmit: true,
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Emit_class_fields_with_Define_instead_of_Set,
+        },
+        {
+            name: "keyofStringsOnly",
+            type: "boolean",
+            category: ts.Diagnostics.Advanced_Options,
+            description: ts.Diagnostics.Resolve_keyof_to_string_valued_property_names_only_no_numbers_or_symbols,
+        },
+        {
+            name: "plugins",
+            type: "list",
+            isTSConfigOnly: true,
+            element: {
+                name: "plugin",
+                type: "object"
+            },
+            description: ts.Diagnostics.List_of_language_service_plugins
+        },
+    ]);
+    ts.semanticDiagnosticsOptionDeclarations = ts.optionDeclarations.filter(function (option) { return !!option.affectsSemanticDiagnostics; });
+    ts.affectsEmitOptionDeclarations = ts.optionDeclarations.filter(function (option) { return !!option.affectsEmit; });
+    ts.moduleResolutionOptionDeclarations = ts.optionDeclarations.filter(function (option) { return !!option.affectsModuleResolution; });
+    ts.sourceFileAffectingCompilerOptions = ts.optionDeclarations.filter(function (option) {
+        return !!option.affectsSourceFile || !!option.affectsModuleResolution || !!option.affectsBindDiagnostics;
+    });
+    ts.transpileOptionValueCompilerOptions = ts.optionDeclarations.filter(function (option) {
+        return ts.hasProperty(option, "transpileOptionValue");
+    });
+    ts.buildOpts = __spreadArrays(ts.commonOptionsWithBuild, [
+        {
+            name: "verbose",
+            shortName: "v",
+            category: ts.Diagnostics.Command_line_Options,
+            description: ts.Diagnostics.Enable_verbose_logging,
+            type: "boolean"
+        },
+        {
+            name: "dry",
+            shortName: "d",
+            category: ts.Diagnostics.Command_line_Options,
+            description: ts.Diagnostics.Show_what_would_be_built_or_deleted_if_specified_with_clean,
+            type: "boolean"
+        },
+        {
+            name: "force",
+            shortName: "f",
+            category: ts.Diagnostics.Command_line_Options,
+            description: ts.Diagnostics.Build_all_projects_including_those_that_appear_to_be_up_to_date,
+            type: "boolean"
+        },
+        {
+            name: "clean",
+            category: ts.Diagnostics.Command_line_Options,
+            description: ts.Diagnostics.Delete_the_outputs_of_all_projects,
+            type: "boolean"
+        }
+    ]);
+    ts.typeAcquisitionDeclarations = [
+        {
+            name: "enableAutoDiscovery",
+            type: "boolean",
+        },
+        {
+            name: "enable",
+            type: "boolean",
+        },
+        {
+            name: "include",
+            type: "list",
+            element: {
+                name: "include",
+                type: "string"
+            }
+        },
+        {
+            name: "exclude",
+            type: "list",
+            element: {
+                name: "exclude",
+                type: "string"
+            }
+        }
+    ];
+    function createOptionNameMap(optionDeclarations) {
+        var optionsNameMap = ts.createMap();
+        var shortOptionNames = ts.createMap();
+        ts.forEach(optionDeclarations, function (option) {
+            optionsNameMap.set(option.name.toLowerCase(), option);
+            if (option.shortName) {
+                shortOptionNames.set(option.shortName, option.name);
+            }
+        });
+        return { optionsNameMap: optionsNameMap, shortOptionNames: shortOptionNames };
+    }
+    ts.createOptionNameMap = createOptionNameMap;
+    var optionsNameMapCache;
+    function getOptionsNameMap() {
+        return optionsNameMapCache || (optionsNameMapCache = createOptionNameMap(ts.optionDeclarations));
+    }
+    ts.getOptionsNameMap = getOptionsNameMap;
+    ts.defaultInitCompilerOptions = {
+        module: ts.ModuleKind.CommonJS,
+        target: 1,
+        strict: true,
+        esModuleInterop: true,
+        forceConsistentCasingInFileNames: true,
+        skipLibCheck: true
+    };
+    function convertEnableAutoDiscoveryToEnable(typeAcquisition) {
+        if (typeAcquisition && typeAcquisition.enableAutoDiscovery !== undefined && typeAcquisition.enable === undefined) {
+            return {
+                enable: typeAcquisition.enableAutoDiscovery,
+                include: typeAcquisition.include || [],
+                exclude: typeAcquisition.exclude || []
+            };
+        }
+        return typeAcquisition;
+    }
+    ts.convertEnableAutoDiscoveryToEnable = convertEnableAutoDiscoveryToEnable;
+    function createCompilerDiagnosticForInvalidCustomType(opt) {
+        return createDiagnosticForInvalidCustomType(opt, ts.createCompilerDiagnostic);
+    }
+    ts.createCompilerDiagnosticForInvalidCustomType = createCompilerDiagnosticForInvalidCustomType;
+    function createDiagnosticForInvalidCustomType(opt, createDiagnostic) {
+        var namesOfType = ts.arrayFrom(opt.type.keys()).map(function (key) { return "'" + key + "'"; }).join(", ");
+        return createDiagnostic(ts.Diagnostics.Argument_for_0_option_must_be_Colon_1, "--" + opt.name, namesOfType);
+    }
+    function parseCustomTypeOption(opt, value, errors) {
+        return convertJsonOptionOfCustomType(opt, trimString(value || ""), errors);
+    }
+    ts.parseCustomTypeOption = parseCustomTypeOption;
+    function parseListTypeOption(opt, value, errors) {
+        if (value === void 0) { value = ""; }
+        value = trimString(value);
+        if (ts.startsWith(value, "-")) {
+            return undefined;
+        }
+        if (value === "") {
+            return [];
+        }
+        var values = value.split(",");
+        switch (opt.element.type) {
+            case "number":
+                return ts.map(values, parseInt);
+            case "string":
+                return ts.map(values, function (v) { return v || ""; });
+            default:
+                return ts.mapDefined(values, function (v) { return parseCustomTypeOption(opt.element, v, errors); });
+        }
+    }
+    ts.parseListTypeOption = parseListTypeOption;
+    function getOptionName(option) {
+        return option.name;
+    }
+    function createUnknownOptionError(unknownOption, diagnostics, createDiagnostics, unknownOptionErrorText) {
+        var possibleOption = ts.getSpellingSuggestion(unknownOption, diagnostics.optionDeclarations, getOptionName);
+        return possibleOption ?
+            createDiagnostics(diagnostics.unknownDidYouMeanDiagnostic, unknownOptionErrorText || unknownOption, possibleOption.name) :
+            createDiagnostics(diagnostics.unknownOptionDiagnostic, unknownOptionErrorText || unknownOption);
+    }
+    function parseCommandLineWorker(diagnostics, commandLine, readFile) {
+        var options = {};
+        var watchOptions;
+        var fileNames = [];
+        var errors = [];
+        parseStrings(commandLine);
+        return {
+            options: options,
+            watchOptions: watchOptions,
+            fileNames: fileNames,
+            errors: errors
+        };
+        function parseStrings(args) {
+            var i = 0;
+            while (i < args.length) {
+                var s = args[i];
+                i++;
+                if (s.charCodeAt(0) === 64) {
+                    parseResponseFile(s.slice(1));
+                }
+                else if (s.charCodeAt(0) === 45) {
+                    var inputOptionName = s.slice(s.charCodeAt(1) === 45 ? 2 : 1);
+                    var opt = getOptionDeclarationFromName(diagnostics.getOptionsNameMap, inputOptionName, true);
+                    if (opt) {
+                        i = parseOptionValue(args, i, diagnostics, opt, options, errors);
+                    }
+                    else {
+                        var watchOpt = getOptionDeclarationFromName(watchOptionsDidYouMeanDiagnostics.getOptionsNameMap, inputOptionName, true);
+                        if (watchOpt) {
+                            i = parseOptionValue(args, i, watchOptionsDidYouMeanDiagnostics, watchOpt, watchOptions || (watchOptions = {}), errors);
+                        }
+                        else {
+                            errors.push(createUnknownOptionError(inputOptionName, diagnostics, ts.createCompilerDiagnostic, s));
+                        }
+                    }
+                }
+                else {
+                    fileNames.push(s);
+                }
+            }
+        }
+        function parseResponseFile(fileName) {
+            var text = tryReadFile(fileName, readFile || (function (fileName) { return ts.sys.readFile(fileName); }));
+            if (!ts.isString(text)) {
+                errors.push(text);
+                return;
+            }
+            var args = [];
+            var pos = 0;
+            while (true) {
+                while (pos < text.length && text.charCodeAt(pos) <= 32)
+                    pos++;
+                if (pos >= text.length)
+                    break;
+                var start = pos;
+                if (text.charCodeAt(start) === 34) {
+                    pos++;
+                    while (pos < text.length && text.charCodeAt(pos) !== 34)
+                        pos++;
+                    if (pos < text.length) {
+                        args.push(text.substring(start + 1, pos));
+                        pos++;
+                    }
+                    else {
+                        errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unterminated_quoted_string_in_response_file_0, fileName));
+                    }
+                }
+                else {
+                    while (text.charCodeAt(pos) > 32)
+                        pos++;
+                    args.push(text.substring(start, pos));
+                }
+            }
+            parseStrings(args);
+        }
+    }
+    ts.parseCommandLineWorker = parseCommandLineWorker;
+    function parseOptionValue(args, i, diagnostics, opt, options, errors) {
+        if (opt.isTSConfigOnly) {
+            var optValue = args[i];
+            if (optValue === "null") {
+                options[opt.name] = undefined;
+                i++;
+            }
+            else if (opt.type === "boolean") {
+                if (optValue === "false") {
+                    options[opt.name] = false;
+                    i++;
+                }
+                else {
+                    if (optValue === "true")
+                        i++;
+                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_can_only_be_specified_in_tsconfig_json_file_or_set_to_false_or_null_on_command_line, opt.name));
+                }
+            }
+            else {
+                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_can_only_be_specified_in_tsconfig_json_file_or_set_to_null_on_command_line, opt.name));
+                if (optValue && !ts.startsWith(optValue, "-"))
+                    i++;
+            }
+        }
+        else {
+            if (!args[i] && opt.type !== "boolean") {
+                errors.push(ts.createCompilerDiagnostic(diagnostics.optionTypeMismatchDiagnostic, opt.name, getCompilerOptionValueTypeString(opt)));
+            }
+            if (args[i] !== "null") {
+                switch (opt.type) {
+                    case "number":
+                        options[opt.name] = parseInt(args[i]);
+                        i++;
+                        break;
+                    case "boolean":
+                        var optValue = args[i];
+                        options[opt.name] = optValue !== "false";
+                        if (optValue === "false" || optValue === "true") {
+                            i++;
+                        }
+                        break;
+                    case "string":
+                        options[opt.name] = args[i] || "";
+                        i++;
+                        break;
+                    case "list":
+                        var result = parseListTypeOption(opt, args[i], errors);
+                        options[opt.name] = result || [];
+                        if (result) {
+                            i++;
+                        }
+                        break;
+                    default:
+                        options[opt.name] = parseCustomTypeOption(opt, args[i], errors);
+                        i++;
+                        break;
+                }
+            }
+            else {
+                options[opt.name] = undefined;
+                i++;
+            }
+        }
+        return i;
+    }
+    ts.compilerOptionsDidYouMeanDiagnostics = {
+        getOptionsNameMap: getOptionsNameMap,
+        optionDeclarations: ts.optionDeclarations,
+        unknownOptionDiagnostic: ts.Diagnostics.Unknown_compiler_option_0,
+        unknownDidYouMeanDiagnostic: ts.Diagnostics.Unknown_compiler_option_0_Did_you_mean_1,
+        optionTypeMismatchDiagnostic: ts.Diagnostics.Compiler_option_0_expects_an_argument
+    };
+    function parseCommandLine(commandLine, readFile) {
+        return parseCommandLineWorker(ts.compilerOptionsDidYouMeanDiagnostics, commandLine, readFile);
+    }
+    ts.parseCommandLine = parseCommandLine;
+    function getOptionFromName(optionName, allowShort) {
+        return getOptionDeclarationFromName(getOptionsNameMap, optionName, allowShort);
+    }
+    ts.getOptionFromName = getOptionFromName;
+    function getOptionDeclarationFromName(getOptionNameMap, optionName, allowShort) {
+        if (allowShort === void 0) { allowShort = false; }
+        optionName = optionName.toLowerCase();
+        var _a = getOptionNameMap(), optionsNameMap = _a.optionsNameMap, shortOptionNames = _a.shortOptionNames;
+        if (allowShort) {
+            var short = shortOptionNames.get(optionName);
+            if (short !== undefined) {
+                optionName = short;
+            }
+        }
+        return optionsNameMap.get(optionName);
+    }
+    var buildOptionsNameMapCache;
+    function getBuildOptionsNameMap() {
+        return buildOptionsNameMapCache || (buildOptionsNameMapCache = createOptionNameMap(ts.buildOpts));
+    }
+    var buildOptionsDidYouMeanDiagnostics = {
+        getOptionsNameMap: getBuildOptionsNameMap,
+        optionDeclarations: ts.buildOpts,
+        unknownOptionDiagnostic: ts.Diagnostics.Unknown_build_option_0,
+        unknownDidYouMeanDiagnostic: ts.Diagnostics.Unknown_build_option_0_Did_you_mean_1,
+        optionTypeMismatchDiagnostic: ts.Diagnostics.Build_option_0_requires_a_value_of_type_1
+    };
+    function parseBuildCommand(args) {
+        var _a = parseCommandLineWorker(buildOptionsDidYouMeanDiagnostics, args), options = _a.options, watchOptions = _a.watchOptions, projects = _a.fileNames, errors = _a.errors;
+        var buildOptions = options;
+        if (projects.length === 0) {
+            projects.push(".");
+        }
+        if (buildOptions.clean && buildOptions.force) {
+            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Options_0_and_1_cannot_be_combined, "clean", "force"));
+        }
+        if (buildOptions.clean && buildOptions.verbose) {
+            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Options_0_and_1_cannot_be_combined, "clean", "verbose"));
+        }
+        if (buildOptions.clean && buildOptions.watch) {
+            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Options_0_and_1_cannot_be_combined, "clean", "watch"));
+        }
+        if (buildOptions.watch && buildOptions.dry) {
+            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Options_0_and_1_cannot_be_combined, "watch", "dry"));
+        }
+        return { buildOptions: buildOptions, watchOptions: watchOptions, projects: projects, errors: errors };
+    }
+    ts.parseBuildCommand = parseBuildCommand;
+    function getDiagnosticText(_message) {
+        var _args = [];
+        for (var _i = 1; _i < arguments.length; _i++) {
+            _args[_i - 1] = arguments[_i];
+        }
+        var diagnostic = ts.createCompilerDiagnostic.apply(undefined, arguments);
+        return diagnostic.messageText;
+    }
+    ts.getDiagnosticText = getDiagnosticText;
+    function getParsedCommandLineOfConfigFile(configFileName, optionsToExtend, host, extendedConfigCache, watchOptionsToExtend, extraFileExtensions) {
+        var configFileText = tryReadFile(configFileName, function (fileName) { return host.readFile(fileName); });
+        if (!ts.isString(configFileText)) {
+            host.onUnRecoverableConfigFileDiagnostic(configFileText);
+            return undefined;
+        }
+        var result = ts.parseJsonText(configFileName, configFileText);
+        var cwd = host.getCurrentDirectory();
+        result.path = ts.toPath(configFileName, cwd, ts.createGetCanonicalFileName(host.useCaseSensitiveFileNames));
+        result.resolvedPath = result.path;
+        result.originalFileName = result.fileName;
+        return parseJsonSourceFileConfigFileContent(result, host, ts.getNormalizedAbsolutePath(ts.getDirectoryPath(configFileName), cwd), optionsToExtend, ts.getNormalizedAbsolutePath(configFileName, cwd), undefined, extraFileExtensions, extendedConfigCache, watchOptionsToExtend);
+    }
+    ts.getParsedCommandLineOfConfigFile = getParsedCommandLineOfConfigFile;
+    function readConfigFile(fileName, readFile) {
+        var textOrDiagnostic = tryReadFile(fileName, readFile);
+        return ts.isString(textOrDiagnostic) ? parseConfigFileTextToJson(fileName, textOrDiagnostic) : { config: {}, error: textOrDiagnostic };
+    }
+    ts.readConfigFile = readConfigFile;
+    function parseConfigFileTextToJson(fileName, jsonText) {
+        var jsonSourceFile = ts.parseJsonText(fileName, jsonText);
+        return {
+            config: convertToObject(jsonSourceFile, jsonSourceFile.parseDiagnostics),
+            error: jsonSourceFile.parseDiagnostics.length ? jsonSourceFile.parseDiagnostics[0] : undefined
+        };
+    }
+    ts.parseConfigFileTextToJson = parseConfigFileTextToJson;
+    function readJsonConfigFile(fileName, readFile) {
+        var textOrDiagnostic = tryReadFile(fileName, readFile);
+        return ts.isString(textOrDiagnostic) ? ts.parseJsonText(fileName, textOrDiagnostic) : { parseDiagnostics: [textOrDiagnostic] };
+    }
+    ts.readJsonConfigFile = readJsonConfigFile;
+    function tryReadFile(fileName, readFile) {
+        var text;
+        try {
+            text = readFile(fileName);
+        }
+        catch (e) {
+            return ts.createCompilerDiagnostic(ts.Diagnostics.Cannot_read_file_0_Colon_1, fileName, e.message);
+        }
+        return text === undefined ? ts.createCompilerDiagnostic(ts.Diagnostics.Cannot_read_file_0, fileName) : text;
+    }
+    ts.tryReadFile = tryReadFile;
+    function commandLineOptionsToMap(options) {
+        return ts.arrayToMap(options, getOptionName);
+    }
+    var typeAcquisitionDidYouMeanDiagnostics = {
+        optionDeclarations: ts.typeAcquisitionDeclarations,
+        unknownOptionDiagnostic: ts.Diagnostics.Unknown_type_acquisition_option_0,
+        unknownDidYouMeanDiagnostic: ts.Diagnostics.Unknown_type_acquisition_option_0_Did_you_mean_1,
+    };
+    var watchOptionsNameMapCache;
+    function getWatchOptionsNameMap() {
+        return watchOptionsNameMapCache || (watchOptionsNameMapCache = createOptionNameMap(ts.optionsForWatch));
+    }
+    var watchOptionsDidYouMeanDiagnostics = {
+        getOptionsNameMap: getWatchOptionsNameMap,
+        optionDeclarations: ts.optionsForWatch,
+        unknownOptionDiagnostic: ts.Diagnostics.Unknown_watch_option_0,
+        unknownDidYouMeanDiagnostic: ts.Diagnostics.Unknown_watch_option_0_Did_you_mean_1,
+        optionTypeMismatchDiagnostic: ts.Diagnostics.Watch_option_0_requires_a_value_of_type_1
+    };
+    var commandLineCompilerOptionsMapCache;
+    function getCommandLineCompilerOptionsMap() {
+        return commandLineCompilerOptionsMapCache || (commandLineCompilerOptionsMapCache = commandLineOptionsToMap(ts.optionDeclarations));
+    }
+    var commandLineWatchOptionsMapCache;
+    function getCommandLineWatchOptionsMap() {
+        return commandLineWatchOptionsMapCache || (commandLineWatchOptionsMapCache = commandLineOptionsToMap(ts.optionsForWatch));
+    }
+    var commandLineTypeAcquisitionMapCache;
+    function getCommandLineTypeAcquisitionMap() {
+        return commandLineTypeAcquisitionMapCache || (commandLineTypeAcquisitionMapCache = commandLineOptionsToMap(ts.typeAcquisitionDeclarations));
+    }
+    var _tsconfigRootOptions;
+    function getTsconfigRootOptionsMap() {
+        if (_tsconfigRootOptions === undefined) {
+            _tsconfigRootOptions = {
+                name: undefined,
+                type: "object",
+                elementOptions: commandLineOptionsToMap([
+                    {
+                        name: "compilerOptions",
+                        type: "object",
+                        elementOptions: getCommandLineCompilerOptionsMap(),
+                        extraKeyDiagnostics: ts.compilerOptionsDidYouMeanDiagnostics,
+                    },
+                    {
+                        name: "watchOptions",
+                        type: "object",
+                        elementOptions: getCommandLineWatchOptionsMap(),
+                        extraKeyDiagnostics: watchOptionsDidYouMeanDiagnostics,
+                    },
+                    {
+                        name: "typingOptions",
+                        type: "object",
+                        elementOptions: getCommandLineTypeAcquisitionMap(),
+                        extraKeyDiagnostics: typeAcquisitionDidYouMeanDiagnostics,
+                    },
+                    {
+                        name: "typeAcquisition",
+                        type: "object",
+                        elementOptions: getCommandLineTypeAcquisitionMap(),
+                        extraKeyDiagnostics: typeAcquisitionDidYouMeanDiagnostics
+                    },
+                    {
+                        name: "extends",
+                        type: "string"
+                    },
+                    {
+                        name: "references",
+                        type: "list",
+                        element: {
+                            name: "references",
+                            type: "object"
+                        }
+                    },
+                    {
+                        name: "files",
+                        type: "list",
+                        element: {
+                            name: "files",
+                            type: "string"
+                        }
+                    },
+                    {
+                        name: "include",
+                        type: "list",
+                        element: {
+                            name: "include",
+                            type: "string"
+                        }
+                    },
+                    {
+                        name: "exclude",
+                        type: "list",
+                        element: {
+                            name: "exclude",
+                            type: "string"
+                        }
+                    },
+                    ts.compileOnSaveCommandLineOption
+                ])
+            };
+        }
+        return _tsconfigRootOptions;
+    }
+    function convertToObject(sourceFile, errors) {
+        return convertToObjectWorker(sourceFile, errors, true, undefined, undefined);
+    }
+    ts.convertToObject = convertToObject;
+    function convertToObjectWorker(sourceFile, errors, returnValue, knownRootOptions, jsonConversionNotifier) {
+        if (!sourceFile.statements.length) {
+            return returnValue ? {} : undefined;
+        }
+        return convertPropertyValueToJson(sourceFile.statements[0].expression, knownRootOptions);
+        function isRootOptionMap(knownOptions) {
+            return knownRootOptions && knownRootOptions.elementOptions === knownOptions;
+        }
+        function convertObjectLiteralExpressionToJson(node, knownOptions, extraKeyDiagnostics, parentOption) {
+            var result = returnValue ? {} : undefined;
+            var _loop_3 = function (element) {
+                if (element.kind !== 281) {
+                    errors.push(ts.createDiagnosticForNodeInSourceFile(sourceFile, element, ts.Diagnostics.Property_assignment_expected));
+                    return "continue";
+                }
+                if (element.questionToken) {
+                    errors.push(ts.createDiagnosticForNodeInSourceFile(sourceFile, element.questionToken, ts.Diagnostics.The_0_modifier_can_only_be_used_in_TypeScript_files, "?"));
+                }
+                if (!isDoubleQuotedString(element.name)) {
+                    errors.push(ts.createDiagnosticForNodeInSourceFile(sourceFile, element.name, ts.Diagnostics.String_literal_with_double_quotes_expected));
+                }
+                var textOfKey = ts.isComputedNonLiteralName(element.name) ? undefined : ts.getTextOfPropertyName(element.name);
+                var keyText = textOfKey && ts.unescapeLeadingUnderscores(textOfKey);
+                var option = keyText && knownOptions ? knownOptions.get(keyText) : undefined;
+                if (keyText && extraKeyDiagnostics && !option) {
+                    if (knownOptions) {
+                        errors.push(createUnknownOptionError(keyText, extraKeyDiagnostics, function (message, arg0, arg1) { return ts.createDiagnosticForNodeInSourceFile(sourceFile, element.name, message, arg0, arg1); }));
+                    }
+                    else {
+                        errors.push(ts.createDiagnosticForNodeInSourceFile(sourceFile, element.name, extraKeyDiagnostics.unknownOptionDiagnostic, keyText));
+                    }
+                }
+                var value = convertPropertyValueToJson(element.initializer, option);
+                if (typeof keyText !== "undefined") {
+                    if (returnValue) {
+                        result[keyText] = value;
+                    }
+                    if (jsonConversionNotifier &&
+                        (parentOption || isRootOptionMap(knownOptions))) {
+                        var isValidOptionValue = isCompilerOptionsValue(option, value);
+                        if (parentOption) {
+                            if (isValidOptionValue) {
+                                jsonConversionNotifier.onSetValidOptionKeyValueInParent(parentOption, option, value);
+                            }
+                        }
+                        else if (isRootOptionMap(knownOptions)) {
+                            if (isValidOptionValue) {
+                                jsonConversionNotifier.onSetValidOptionKeyValueInRoot(keyText, element.name, value, element.initializer);
+                            }
+                            else if (!option) {
+                                jsonConversionNotifier.onSetUnknownOptionKeyValueInRoot(keyText, element.name, value, element.initializer);
+                            }
+                        }
+                    }
+                }
+            };
+            for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
+                var element = _a[_i];
+                _loop_3(element);
+            }
+            return result;
+        }
+        function convertArrayLiteralExpressionToJson(elements, elementOption) {
+            if (!returnValue) {
+                return elements.forEach(function (element) { return convertPropertyValueToJson(element, elementOption); });
+            }
+            return ts.filter(elements.map(function (element) { return convertPropertyValueToJson(element, elementOption); }), function (v) { return v !== undefined; });
+        }
+        function convertPropertyValueToJson(valueExpression, option) {
+            switch (valueExpression.kind) {
+                case 106:
+                    reportInvalidOptionValue(option && option.type !== "boolean");
+                    return true;
+                case 91:
+                    reportInvalidOptionValue(option && option.type !== "boolean");
+                    return false;
+                case 100:
+                    reportInvalidOptionValue(option && option.name === "extends");
+                    return null;
+                case 10:
+                    if (!isDoubleQuotedString(valueExpression)) {
+                        errors.push(ts.createDiagnosticForNodeInSourceFile(sourceFile, valueExpression, ts.Diagnostics.String_literal_with_double_quotes_expected));
+                    }
+                    reportInvalidOptionValue(option && (ts.isString(option.type) && option.type !== "string"));
+                    var text = valueExpression.text;
+                    if (option && !ts.isString(option.type)) {
+                        var customOption = option;
+                        if (!customOption.type.has(text.toLowerCase())) {
+                            errors.push(createDiagnosticForInvalidCustomType(customOption, function (message, arg0, arg1) { return ts.createDiagnosticForNodeInSourceFile(sourceFile, valueExpression, message, arg0, arg1); }));
+                        }
+                    }
+                    return text;
+                case 8:
+                    reportInvalidOptionValue(option && option.type !== "number");
+                    return Number(valueExpression.text);
+                case 207:
+                    if (valueExpression.operator !== 40 || valueExpression.operand.kind !== 8) {
+                        break;
+                    }
+                    reportInvalidOptionValue(option && option.type !== "number");
+                    return -Number(valueExpression.operand.text);
+                case 193:
+                    reportInvalidOptionValue(option && option.type !== "object");
+                    var objectLiteralExpression = valueExpression;
+                    if (option) {
+                        var _a = option, elementOptions = _a.elementOptions, extraKeyDiagnostics = _a.extraKeyDiagnostics, optionName = _a.name;
+                        return convertObjectLiteralExpressionToJson(objectLiteralExpression, elementOptions, extraKeyDiagnostics, optionName);
+                    }
+                    else {
+                        return convertObjectLiteralExpressionToJson(objectLiteralExpression, undefined, undefined, undefined);
+                    }
+                case 192:
+                    reportInvalidOptionValue(option && option.type !== "list");
+                    return convertArrayLiteralExpressionToJson(valueExpression.elements, option && option.element);
+            }
+            if (option) {
+                reportInvalidOptionValue(true);
+            }
+            else {
+                errors.push(ts.createDiagnosticForNodeInSourceFile(sourceFile, valueExpression, ts.Diagnostics.Property_value_can_only_be_string_literal_numeric_literal_true_false_null_object_literal_or_array_literal));
+            }
+            return undefined;
+            function reportInvalidOptionValue(isError) {
+                if (isError) {
+                    errors.push(ts.createDiagnosticForNodeInSourceFile(sourceFile, valueExpression, ts.Diagnostics.Compiler_option_0_requires_a_value_of_type_1, option.name, getCompilerOptionValueTypeString(option)));
+                }
+            }
+        }
+        function isDoubleQuotedString(node) {
+            return ts.isStringLiteral(node) && ts.isStringDoubleQuoted(node, sourceFile);
+        }
+    }
+    ts.convertToObjectWorker = convertToObjectWorker;
+    function getCompilerOptionValueTypeString(option) {
+        return option.type === "list" ?
+            "Array" :
+            ts.isString(option.type) ? option.type : "string";
+    }
+    function isCompilerOptionsValue(option, value) {
+        if (option) {
+            if (isNullOrUndefined(value))
+                return true;
+            if (option.type === "list") {
+                return ts.isArray(value);
+            }
+            var expectedType = ts.isString(option.type) ? option.type : "string";
+            return typeof value === expectedType;
+        }
+        return false;
+    }
+    function convertToTSConfig(configParseResult, configFileName, host) {
+        var getCanonicalFileName = ts.createGetCanonicalFileName(host.useCaseSensitiveFileNames);
+        var files = ts.map(ts.filter(configParseResult.fileNames, (!configParseResult.configFileSpecs || !configParseResult.configFileSpecs.validatedIncludeSpecs) ? function (_) { return true; } : matchesSpecs(configFileName, configParseResult.configFileSpecs.validatedIncludeSpecs, configParseResult.configFileSpecs.validatedExcludeSpecs, host)), function (f) { return ts.getRelativePathFromFile(ts.getNormalizedAbsolutePath(configFileName, host.getCurrentDirectory()), ts.getNormalizedAbsolutePath(f, host.getCurrentDirectory()), getCanonicalFileName); });
+        var optionMap = serializeCompilerOptions(configParseResult.options, { configFilePath: ts.getNormalizedAbsolutePath(configFileName, host.getCurrentDirectory()), useCaseSensitiveFileNames: host.useCaseSensitiveFileNames });
+        var watchOptionMap = configParseResult.watchOptions && serializeWatchOptions(configParseResult.watchOptions);
+        var config = __assign(__assign({ compilerOptions: __assign(__assign({}, optionMapToObject(optionMap)), { showConfig: undefined, configFile: undefined, configFilePath: undefined, help: undefined, init: undefined, listFiles: undefined, listEmittedFiles: undefined, project: undefined, build: undefined, version: undefined }), watchOptions: watchOptionMap && optionMapToObject(watchOptionMap), references: ts.map(configParseResult.projectReferences, function (r) { return (__assign(__assign({}, r), { path: r.originalPath ? r.originalPath : "", originalPath: undefined })); }), files: ts.length(files) ? files : undefined }, (configParseResult.configFileSpecs ? {
+            include: filterSameAsDefaultInclude(configParseResult.configFileSpecs.validatedIncludeSpecs),
+            exclude: configParseResult.configFileSpecs.validatedExcludeSpecs
+        } : {})), { compileOnSave: !!configParseResult.compileOnSave ? true : undefined });
+        return config;
+    }
+    ts.convertToTSConfig = convertToTSConfig;
+    function optionMapToObject(optionMap) {
+        return __assign({}, ts.arrayFrom(optionMap.entries()).reduce(function (prev, cur) {
+            var _a;
+            return (__assign(__assign({}, prev), (_a = {}, _a[cur[0]] = cur[1], _a)));
+        }, {}));
+    }
+    function filterSameAsDefaultInclude(specs) {
+        if (!ts.length(specs))
+            return undefined;
+        if (ts.length(specs) !== 1)
+            return specs;
+        if (specs[0] === "**/*")
+            return undefined;
+        return specs;
+    }
+    function matchesSpecs(path, includeSpecs, excludeSpecs, host) {
+        if (!includeSpecs)
+            return function (_) { return true; };
+        var patterns = ts.getFileMatcherPatterns(path, excludeSpecs, includeSpecs, host.useCaseSensitiveFileNames, host.getCurrentDirectory());
+        var excludeRe = patterns.excludePattern && ts.getRegexFromPattern(patterns.excludePattern, host.useCaseSensitiveFileNames);
+        var includeRe = patterns.includeFilePattern && ts.getRegexFromPattern(patterns.includeFilePattern, host.useCaseSensitiveFileNames);
+        if (includeRe) {
+            if (excludeRe) {
+                return function (path) { return !(includeRe.test(path) && !excludeRe.test(path)); };
+            }
+            return function (path) { return !includeRe.test(path); };
+        }
+        if (excludeRe) {
+            return function (path) { return excludeRe.test(path); };
+        }
+        return function (_) { return true; };
+    }
+    function getCustomTypeMapOfCommandLineOption(optionDefinition) {
+        if (optionDefinition.type === "string" || optionDefinition.type === "number" || optionDefinition.type === "boolean" || optionDefinition.type === "object") {
+            return undefined;
+        }
+        else if (optionDefinition.type === "list") {
+            return getCustomTypeMapOfCommandLineOption(optionDefinition.element);
+        }
+        else {
+            return optionDefinition.type;
+        }
+    }
+    function getNameOfCompilerOptionValue(value, customTypeMap) {
+        return ts.forEachEntry(customTypeMap, function (mapValue, key) {
+            if (mapValue === value) {
+                return key;
+            }
+        });
+    }
+    function serializeCompilerOptions(options, pathOptions) {
+        return serializeOptionBaseObject(options, getOptionsNameMap(), pathOptions);
+    }
+    function serializeWatchOptions(options) {
+        return serializeOptionBaseObject(options, getWatchOptionsNameMap());
+    }
+    function serializeOptionBaseObject(options, _a, pathOptions) {
+        var optionsNameMap = _a.optionsNameMap;
+        var result = ts.createMap();
+        var getCanonicalFileName = pathOptions && ts.createGetCanonicalFileName(pathOptions.useCaseSensitiveFileNames);
+        var _loop_4 = function (name) {
+            if (ts.hasProperty(options, name)) {
+                if (optionsNameMap.has(name) && optionsNameMap.get(name).category === ts.Diagnostics.Command_line_Options) {
+                    return "continue";
+                }
+                var value = options[name];
+                var optionDefinition = optionsNameMap.get(name.toLowerCase());
+                if (optionDefinition) {
+                    var customTypeMap_1 = getCustomTypeMapOfCommandLineOption(optionDefinition);
+                    if (!customTypeMap_1) {
+                        if (pathOptions && optionDefinition.isFilePath) {
+                            result.set(name, ts.getRelativePathFromFile(pathOptions.configFilePath, ts.getNormalizedAbsolutePath(value, ts.getDirectoryPath(pathOptions.configFilePath)), getCanonicalFileName));
+                        }
+                        else {
+                            result.set(name, value);
+                        }
+                    }
+                    else {
+                        if (optionDefinition.type === "list") {
+                            result.set(name, value.map(function (element) { return getNameOfCompilerOptionValue(element, customTypeMap_1); }));
+                        }
+                        else {
+                            result.set(name, getNameOfCompilerOptionValue(value, customTypeMap_1));
+                        }
+                    }
+                }
+            }
+        };
+        for (var name in options) {
+            _loop_4(name);
+        }
+        return result;
+    }
+    function generateTSConfig(options, fileNames, newLine) {
+        var compilerOptions = ts.extend(options, ts.defaultInitCompilerOptions);
+        var compilerOptionsMap = serializeCompilerOptions(compilerOptions);
+        return writeConfigurations();
+        function getDefaultValueForOption(option) {
+            switch (option.type) {
+                case "number":
+                    return 1;
+                case "boolean":
+                    return true;
+                case "string":
+                    return option.isFilePath ? "./" : "";
+                case "list":
+                    return [];
+                case "object":
+                    return {};
+                default:
+                    var iterResult = option.type.keys().next();
+                    if (!iterResult.done)
+                        return iterResult.value;
+                    return ts.Debug.fail("Expected 'option.type' to have entries.");
+            }
+        }
+        function makePadding(paddingLength) {
+            return Array(paddingLength + 1).join(" ");
+        }
+        function isAllowedOption(_a) {
+            var category = _a.category, name = _a.name;
+            return category !== undefined
+                && category !== ts.Diagnostics.Command_line_Options
+                && (category !== ts.Diagnostics.Advanced_Options || compilerOptionsMap.has(name));
+        }
+        function writeConfigurations() {
+            var categorizedOptions = ts.createMultiMap();
+            for (var _i = 0, optionDeclarations_1 = ts.optionDeclarations; _i < optionDeclarations_1.length; _i++) {
+                var option = optionDeclarations_1[_i];
+                var category = option.category;
+                if (isAllowedOption(option)) {
+                    categorizedOptions.add(ts.getLocaleSpecificMessage(category), option);
+                }
+            }
+            var marginLength = 0;
+            var seenKnownKeys = 0;
+            var entries = [];
+            categorizedOptions.forEach(function (options, category) {
+                if (entries.length !== 0) {
+                    entries.push({ value: "" });
+                }
+                entries.push({ value: "/* " + category + " */" });
+                for (var _i = 0, options_1 = options; _i < options_1.length; _i++) {
+                    var option = options_1[_i];
+                    var optionName = void 0;
+                    if (compilerOptionsMap.has(option.name)) {
+                        optionName = "\"" + option.name + "\": " + JSON.stringify(compilerOptionsMap.get(option.name)) + ((seenKnownKeys += 1) === compilerOptionsMap.size ? "" : ",");
+                    }
+                    else {
+                        optionName = "// \"" + option.name + "\": " + JSON.stringify(getDefaultValueForOption(option)) + ",";
+                    }
+                    entries.push({
+                        value: optionName,
+                        description: "/* " + (option.description && ts.getLocaleSpecificMessage(option.description) || option.name) + " */"
+                    });
+                    marginLength = Math.max(optionName.length, marginLength);
+                }
+            });
+            var tab = makePadding(2);
+            var result = [];
+            result.push("{");
+            result.push(tab + "\"compilerOptions\": {");
+            result.push("" + tab + tab + "/* " + ts.getLocaleSpecificMessage(ts.Diagnostics.Visit_https_Colon_Slash_Slashaka_ms_Slashtsconfig_json_to_read_more_about_this_file) + " */");
+            result.push("");
+            for (var _a = 0, entries_3 = entries; _a < entries_3.length; _a++) {
+                var entry = entries_3[_a];
+                var value = entry.value, _b = entry.description, description = _b === void 0 ? "" : _b;
+                result.push(value && "" + tab + tab + value + (description && (makePadding(marginLength - value.length + 2) + description)));
+            }
+            if (fileNames.length) {
+                result.push(tab + "},");
+                result.push(tab + "\"files\": [");
+                for (var i = 0; i < fileNames.length; i++) {
+                    result.push("" + tab + tab + JSON.stringify(fileNames[i]) + (i === fileNames.length - 1 ? "" : ","));
+                }
+                result.push(tab + "]");
+            }
+            else {
+                result.push(tab + "}");
+            }
+            result.push("}");
+            return result.join(newLine) + newLine;
+        }
+    }
+    ts.generateTSConfig = generateTSConfig;
+    function convertToOptionsWithAbsolutePaths(options, toAbsolutePath) {
+        var result = {};
+        var optionsNameMap = getOptionsNameMap().optionsNameMap;
+        for (var name in options) {
+            if (ts.hasProperty(options, name)) {
+                result[name] = convertToOptionValueWithAbsolutePaths(optionsNameMap.get(name.toLowerCase()), options[name], toAbsolutePath);
+            }
+        }
+        if (result.configFilePath) {
+            result.configFilePath = toAbsolutePath(result.configFilePath);
+        }
+        return result;
+    }
+    ts.convertToOptionsWithAbsolutePaths = convertToOptionsWithAbsolutePaths;
+    function convertToOptionValueWithAbsolutePaths(option, value, toAbsolutePath) {
+        if (option && !isNullOrUndefined(value)) {
+            if (option.type === "list") {
+                var values = value;
+                if (option.element.isFilePath && values.length) {
+                    return values.map(toAbsolutePath);
+                }
+            }
+            else if (option.isFilePath) {
+                return toAbsolutePath(value);
+            }
+        }
+        return value;
+    }
+    function parseJsonConfigFileContent(json, host, basePath, existingOptions, configFileName, resolutionStack, extraFileExtensions, extendedConfigCache, existingWatchOptions) {
+        return parseJsonConfigFileContentWorker(json, undefined, host, basePath, existingOptions, existingWatchOptions, configFileName, resolutionStack, extraFileExtensions, extendedConfigCache);
+    }
+    ts.parseJsonConfigFileContent = parseJsonConfigFileContent;
+    function parseJsonSourceFileConfigFileContent(sourceFile, host, basePath, existingOptions, configFileName, resolutionStack, extraFileExtensions, extendedConfigCache, existingWatchOptions) {
+        return parseJsonConfigFileContentWorker(undefined, sourceFile, host, basePath, existingOptions, existingWatchOptions, configFileName, resolutionStack, extraFileExtensions, extendedConfigCache);
+    }
+    ts.parseJsonSourceFileConfigFileContent = parseJsonSourceFileConfigFileContent;
+    function setConfigFileInOptions(options, configFile) {
+        if (configFile) {
+            Object.defineProperty(options, "configFile", { enumerable: false, writable: false, value: configFile });
+        }
+    }
+    ts.setConfigFileInOptions = setConfigFileInOptions;
+    function isNullOrUndefined(x) {
+        return x === undefined || x === null;
+    }
+    function directoryOfCombinedPath(fileName, basePath) {
+        return ts.getDirectoryPath(ts.getNormalizedAbsolutePath(fileName, basePath));
+    }
+    function parseJsonConfigFileContentWorker(json, sourceFile, host, basePath, existingOptions, existingWatchOptions, configFileName, resolutionStack, extraFileExtensions, extendedConfigCache) {
+        if (existingOptions === void 0) { existingOptions = {}; }
+        if (resolutionStack === void 0) { resolutionStack = []; }
+        if (extraFileExtensions === void 0) { extraFileExtensions = []; }
+        ts.Debug.assert((json === undefined && sourceFile !== undefined) || (json !== undefined && sourceFile === undefined));
+        var errors = [];
+        var parsedConfig = parseConfig(json, sourceFile, host, basePath, configFileName, resolutionStack, errors, extendedConfigCache);
+        var raw = parsedConfig.raw;
+        var options = ts.extend(existingOptions, parsedConfig.options || {});
+        var watchOptions = existingWatchOptions && parsedConfig.watchOptions ?
+            ts.extend(existingWatchOptions, parsedConfig.watchOptions) :
+            parsedConfig.watchOptions || existingWatchOptions;
+        options.configFilePath = configFileName && ts.normalizeSlashes(configFileName);
+        setConfigFileInOptions(options, sourceFile);
+        var projectReferences;
+        var _a = getFileNames(), fileNames = _a.fileNames, wildcardDirectories = _a.wildcardDirectories, spec = _a.spec;
+        return {
+            options: options,
+            watchOptions: watchOptions,
+            fileNames: fileNames,
+            projectReferences: projectReferences,
+            typeAcquisition: parsedConfig.typeAcquisition || getDefaultTypeAcquisition(),
+            raw: raw,
+            errors: errors,
+            wildcardDirectories: wildcardDirectories,
+            compileOnSave: !!raw.compileOnSave,
+            configFileSpecs: spec
+        };
+        function getFileNames() {
+            var filesSpecs;
+            if (ts.hasProperty(raw, "files") && !isNullOrUndefined(raw.files)) {
+                if (ts.isArray(raw.files)) {
+                    filesSpecs = raw.files;
+                    var hasReferences = ts.hasProperty(raw, "references") && !isNullOrUndefined(raw.references);
+                    var hasZeroOrNoReferences = !hasReferences || raw.references.length === 0;
+                    var hasExtends = ts.hasProperty(raw, "extends");
+                    if (filesSpecs.length === 0 && hasZeroOrNoReferences && !hasExtends) {
+                        if (sourceFile) {
+                            var fileName = configFileName || "tsconfig.json";
+                            var diagnosticMessage = ts.Diagnostics.The_files_list_in_config_file_0_is_empty;
+                            var nodeValue = ts.firstDefined(ts.getTsConfigPropArray(sourceFile, "files"), function (property) { return property.initializer; });
+                            var error = nodeValue
+                                ? ts.createDiagnosticForNodeInSourceFile(sourceFile, nodeValue, diagnosticMessage, fileName)
+                                : ts.createCompilerDiagnostic(diagnosticMessage, fileName);
+                            errors.push(error);
+                        }
+                        else {
+                            createCompilerDiagnosticOnlyIfJson(ts.Diagnostics.The_files_list_in_config_file_0_is_empty, configFileName || "tsconfig.json");
+                        }
+                    }
+                }
+                else {
+                    createCompilerDiagnosticOnlyIfJson(ts.Diagnostics.Compiler_option_0_requires_a_value_of_type_1, "files", "Array");
+                }
+            }
+            var includeSpecs;
+            if (ts.hasProperty(raw, "include") && !isNullOrUndefined(raw.include)) {
+                if (ts.isArray(raw.include)) {
+                    includeSpecs = raw.include;
+                }
+                else {
+                    createCompilerDiagnosticOnlyIfJson(ts.Diagnostics.Compiler_option_0_requires_a_value_of_type_1, "include", "Array");
+                }
+            }
+            var excludeSpecs;
+            if (ts.hasProperty(raw, "exclude") && !isNullOrUndefined(raw.exclude)) {
+                if (ts.isArray(raw.exclude)) {
+                    excludeSpecs = raw.exclude;
+                }
+                else {
+                    createCompilerDiagnosticOnlyIfJson(ts.Diagnostics.Compiler_option_0_requires_a_value_of_type_1, "exclude", "Array");
+                }
+            }
+            else if (raw.compilerOptions) {
+                var outDir = raw.compilerOptions.outDir;
+                var declarationDir = raw.compilerOptions.declarationDir;
+                if (outDir || declarationDir) {
+                    excludeSpecs = [outDir, declarationDir].filter(function (d) { return !!d; });
+                }
+            }
+            if (filesSpecs === undefined && includeSpecs === undefined) {
+                includeSpecs = ["**/*"];
+            }
+            var result = matchFileNames(filesSpecs, includeSpecs, excludeSpecs, configFileName ? directoryOfCombinedPath(configFileName, basePath) : basePath, options, host, errors, extraFileExtensions, sourceFile);
+            if (shouldReportNoInputFiles(result, canJsonReportNoInutFiles(raw), resolutionStack)) {
+                errors.push(getErrorForNoInputFiles(result.spec, configFileName));
+            }
+            if (ts.hasProperty(raw, "references") && !isNullOrUndefined(raw.references)) {
+                if (ts.isArray(raw.references)) {
+                    for (var _i = 0, _a = raw.references; _i < _a.length; _i++) {
+                        var ref = _a[_i];
+                        if (typeof ref.path !== "string") {
+                            createCompilerDiagnosticOnlyIfJson(ts.Diagnostics.Compiler_option_0_requires_a_value_of_type_1, "reference.path", "string");
+                        }
+                        else {
+                            (projectReferences || (projectReferences = [])).push({
+                                path: ts.getNormalizedAbsolutePath(ref.path, basePath),
+                                originalPath: ref.path,
+                                prepend: ref.prepend,
+                                circular: ref.circular
+                            });
+                        }
+                    }
+                }
+                else {
+                    createCompilerDiagnosticOnlyIfJson(ts.Diagnostics.Compiler_option_0_requires_a_value_of_type_1, "references", "Array");
+                }
+            }
+            return result;
+        }
+        function createCompilerDiagnosticOnlyIfJson(message, arg0, arg1) {
+            if (!sourceFile) {
+                errors.push(ts.createCompilerDiagnostic(message, arg0, arg1));
+            }
+        }
+    }
+    function isErrorNoInputFiles(error) {
+        return error.code === ts.Diagnostics.No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2.code;
+    }
+    function getErrorForNoInputFiles(_a, configFileName) {
+        var includeSpecs = _a.includeSpecs, excludeSpecs = _a.excludeSpecs;
+        return ts.createCompilerDiagnostic(ts.Diagnostics.No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2, configFileName || "tsconfig.json", JSON.stringify(includeSpecs || []), JSON.stringify(excludeSpecs || []));
+    }
+    function shouldReportNoInputFiles(result, canJsonReportNoInutFiles, resolutionStack) {
+        return result.fileNames.length === 0 && canJsonReportNoInutFiles && (!resolutionStack || resolutionStack.length === 0);
+    }
+    function canJsonReportNoInutFiles(raw) {
+        return !ts.hasProperty(raw, "files") && !ts.hasProperty(raw, "references");
+    }
+    ts.canJsonReportNoInutFiles = canJsonReportNoInutFiles;
+    function updateErrorForNoInputFiles(result, configFileName, configFileSpecs, configParseDiagnostics, canJsonReportNoInutFiles) {
+        var existingErrors = configParseDiagnostics.length;
+        if (shouldReportNoInputFiles(result, canJsonReportNoInutFiles)) {
+            configParseDiagnostics.push(getErrorForNoInputFiles(configFileSpecs, configFileName));
+        }
+        else {
+            ts.filterMutate(configParseDiagnostics, function (error) { return !isErrorNoInputFiles(error); });
+        }
+        return existingErrors !== configParseDiagnostics.length;
+    }
+    ts.updateErrorForNoInputFiles = updateErrorForNoInputFiles;
+    function isSuccessfulParsedTsconfig(value) {
+        return !!value.options;
+    }
+    function parseConfig(json, sourceFile, host, basePath, configFileName, resolutionStack, errors, extendedConfigCache) {
+        basePath = ts.normalizeSlashes(basePath);
+        var resolvedPath = ts.getNormalizedAbsolutePath(configFileName || "", basePath);
+        if (resolutionStack.indexOf(resolvedPath) >= 0) {
+            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Circularity_detected_while_resolving_configuration_Colon_0, __spreadArrays(resolutionStack, [resolvedPath]).join(" -> ")));
+            return { raw: json || convertToObject(sourceFile, errors) };
+        }
+        var ownConfig = json ?
+            parseOwnConfigOfJson(json, host, basePath, configFileName, errors) :
+            parseOwnConfigOfJsonSourceFile(sourceFile, host, basePath, configFileName, errors);
+        if (ownConfig.extendedConfigPath) {
+            resolutionStack = resolutionStack.concat([resolvedPath]);
+            var extendedConfig = getExtendedConfig(sourceFile, ownConfig.extendedConfigPath, host, basePath, resolutionStack, errors, extendedConfigCache);
+            if (extendedConfig && isSuccessfulParsedTsconfig(extendedConfig)) {
+                var baseRaw_1 = extendedConfig.raw;
+                var raw_1 = ownConfig.raw;
+                var setPropertyInRawIfNotUndefined = function (propertyName) {
+                    var value = raw_1[propertyName] || baseRaw_1[propertyName];
+                    if (value) {
+                        raw_1[propertyName] = value;
+                    }
+                };
+                setPropertyInRawIfNotUndefined("include");
+                setPropertyInRawIfNotUndefined("exclude");
+                setPropertyInRawIfNotUndefined("files");
+                if (raw_1.compileOnSave === undefined) {
+                    raw_1.compileOnSave = baseRaw_1.compileOnSave;
+                }
+                ownConfig.options = ts.assign({}, extendedConfig.options, ownConfig.options);
+                ownConfig.watchOptions = ownConfig.watchOptions && extendedConfig.watchOptions ?
+                    ts.assign({}, extendedConfig.watchOptions, ownConfig.watchOptions) :
+                    ownConfig.watchOptions || extendedConfig.watchOptions;
+            }
+        }
+        return ownConfig;
+    }
+    function parseOwnConfigOfJson(json, host, basePath, configFileName, errors) {
+        if (ts.hasProperty(json, "excludes")) {
+            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unknown_option_excludes_Did_you_mean_exclude));
+        }
+        var options = convertCompilerOptionsFromJsonWorker(json.compilerOptions, basePath, errors, configFileName);
+        var typeAcquisition = convertTypeAcquisitionFromJsonWorker(json.typeAcquisition || json.typingOptions, basePath, errors, configFileName);
+        var watchOptions = convertWatchOptionsFromJsonWorker(json.watchOptions, basePath, errors);
+        json.compileOnSave = convertCompileOnSaveOptionFromJson(json, basePath, errors);
+        var extendedConfigPath;
+        if (json.extends) {
+            if (!ts.isString(json.extends)) {
+                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Compiler_option_0_requires_a_value_of_type_1, "extends", "string"));
+            }
+            else {
+                var newBase = configFileName ? directoryOfCombinedPath(configFileName, basePath) : basePath;
+                extendedConfigPath = getExtendsConfigPath(json.extends, host, newBase, errors, ts.createCompilerDiagnostic);
+            }
+        }
+        return { raw: json, options: options, watchOptions: watchOptions, typeAcquisition: typeAcquisition, extendedConfigPath: extendedConfigPath };
+    }
+    function parseOwnConfigOfJsonSourceFile(sourceFile, host, basePath, configFileName, errors) {
+        var options = getDefaultCompilerOptions(configFileName);
+        var typeAcquisition, typingOptionstypeAcquisition;
+        var watchOptions;
+        var extendedConfigPath;
+        var optionsIterator = {
+            onSetValidOptionKeyValueInParent: function (parentOption, option, value) {
+                var currentOption;
+                switch (parentOption) {
+                    case "compilerOptions":
+                        currentOption = options;
+                        break;
+                    case "watchOptions":
+                        currentOption = (watchOptions || (watchOptions = {}));
+                        break;
+                    case "typeAcquisition":
+                        currentOption = (typeAcquisition || (typeAcquisition = getDefaultTypeAcquisition(configFileName)));
+                        break;
+                    case "typingOptions":
+                        currentOption = (typingOptionstypeAcquisition || (typingOptionstypeAcquisition = getDefaultTypeAcquisition(configFileName)));
+                        break;
+                    default:
+                        ts.Debug.fail("Unknown option");
+                }
+                currentOption[option.name] = normalizeOptionValue(option, basePath, value);
+            },
+            onSetValidOptionKeyValueInRoot: function (key, _keyNode, value, valueNode) {
+                switch (key) {
+                    case "extends":
+                        var newBase = configFileName ? directoryOfCombinedPath(configFileName, basePath) : basePath;
+                        extendedConfigPath = getExtendsConfigPath(value, host, newBase, errors, function (message, arg0) {
+                            return ts.createDiagnosticForNodeInSourceFile(sourceFile, valueNode, message, arg0);
+                        });
+                        return;
+                }
+            },
+            onSetUnknownOptionKeyValueInRoot: function (key, keyNode, _value, _valueNode) {
+                if (key === "excludes") {
+                    errors.push(ts.createDiagnosticForNodeInSourceFile(sourceFile, keyNode, ts.Diagnostics.Unknown_option_excludes_Did_you_mean_exclude));
+                }
+            }
+        };
+        var json = convertToObjectWorker(sourceFile, errors, true, getTsconfigRootOptionsMap(), optionsIterator);
+        if (!typeAcquisition) {
+            if (typingOptionstypeAcquisition) {
+                typeAcquisition = (typingOptionstypeAcquisition.enableAutoDiscovery !== undefined) ?
+                    {
+                        enable: typingOptionstypeAcquisition.enableAutoDiscovery,
+                        include: typingOptionstypeAcquisition.include,
+                        exclude: typingOptionstypeAcquisition.exclude
+                    } :
+                    typingOptionstypeAcquisition;
+            }
+            else {
+                typeAcquisition = getDefaultTypeAcquisition(configFileName);
+            }
+        }
+        return { raw: json, options: options, watchOptions: watchOptions, typeAcquisition: typeAcquisition, extendedConfigPath: extendedConfigPath };
+    }
+    function getExtendsConfigPath(extendedConfig, host, basePath, errors, createDiagnostic) {
+        extendedConfig = ts.normalizeSlashes(extendedConfig);
+        if (ts.isRootedDiskPath(extendedConfig) || ts.startsWith(extendedConfig, "./") || ts.startsWith(extendedConfig, "../")) {
+            var extendedConfigPath = ts.getNormalizedAbsolutePath(extendedConfig, basePath);
+            if (!host.fileExists(extendedConfigPath) && !ts.endsWith(extendedConfigPath, ".json")) {
+                extendedConfigPath = extendedConfigPath + ".json";
+                if (!host.fileExists(extendedConfigPath)) {
+                    errors.push(createDiagnostic(ts.Diagnostics.File_0_not_found, extendedConfig));
+                    return undefined;
+                }
+            }
+            return extendedConfigPath;
+        }
+        var resolved = ts.nodeModuleNameResolver(extendedConfig, ts.combinePaths(basePath, "tsconfig.json"), { moduleResolution: ts.ModuleResolutionKind.NodeJs }, host, undefined, undefined, true);
+        if (resolved.resolvedModule) {
+            return resolved.resolvedModule.resolvedFileName;
+        }
+        errors.push(createDiagnostic(ts.Diagnostics.File_0_not_found, extendedConfig));
+        return undefined;
+    }
+    function getExtendedConfig(sourceFile, extendedConfigPath, host, basePath, resolutionStack, errors, extendedConfigCache) {
+        var _a;
+        var path = host.useCaseSensitiveFileNames ? extendedConfigPath : ts.toFileNameLowerCase(extendedConfigPath);
+        var value;
+        var extendedResult;
+        var extendedConfig;
+        if (extendedConfigCache && (value = extendedConfigCache.get(path))) {
+            (extendedResult = value.extendedResult, extendedConfig = value.extendedConfig);
+        }
+        else {
+            extendedResult = readJsonConfigFile(extendedConfigPath, function (path) { return host.readFile(path); });
+            if (!extendedResult.parseDiagnostics.length) {
+                var extendedDirname = ts.getDirectoryPath(extendedConfigPath);
+                extendedConfig = parseConfig(undefined, extendedResult, host, extendedDirname, ts.getBaseFileName(extendedConfigPath), resolutionStack, errors, extendedConfigCache);
+                if (isSuccessfulParsedTsconfig(extendedConfig)) {
+                    var relativeDifference_1 = ts.convertToRelativePath(extendedDirname, basePath, ts.identity);
+                    var updatePath_1 = function (path) { return ts.isRootedDiskPath(path) ? path : ts.combinePaths(relativeDifference_1, path); };
+                    var mapPropertiesInRawIfNotUndefined = function (propertyName) {
+                        if (raw_2[propertyName]) {
+                            raw_2[propertyName] = ts.map(raw_2[propertyName], updatePath_1);
+                        }
+                    };
+                    var raw_2 = extendedConfig.raw;
+                    mapPropertiesInRawIfNotUndefined("include");
+                    mapPropertiesInRawIfNotUndefined("exclude");
+                    mapPropertiesInRawIfNotUndefined("files");
+                }
+            }
+            if (extendedConfigCache) {
+                extendedConfigCache.set(path, { extendedResult: extendedResult, extendedConfig: extendedConfig });
+            }
+        }
+        if (sourceFile) {
+            sourceFile.extendedSourceFiles = [extendedResult.fileName];
+            if (extendedResult.extendedSourceFiles) {
+                (_a = sourceFile.extendedSourceFiles).push.apply(_a, extendedResult.extendedSourceFiles);
+            }
+        }
+        if (extendedResult.parseDiagnostics.length) {
+            errors.push.apply(errors, extendedResult.parseDiagnostics);
+            return undefined;
+        }
+        return extendedConfig;
+    }
+    function convertCompileOnSaveOptionFromJson(jsonOption, basePath, errors) {
+        if (!ts.hasProperty(jsonOption, ts.compileOnSaveCommandLineOption.name)) {
+            return false;
+        }
+        var result = convertJsonOption(ts.compileOnSaveCommandLineOption, jsonOption.compileOnSave, basePath, errors);
+        return typeof result === "boolean" && result;
+    }
+    function convertCompilerOptionsFromJson(jsonOptions, basePath, configFileName) {
+        var errors = [];
+        var options = convertCompilerOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName);
+        return { options: options, errors: errors };
+    }
+    ts.convertCompilerOptionsFromJson = convertCompilerOptionsFromJson;
+    function convertTypeAcquisitionFromJson(jsonOptions, basePath, configFileName) {
+        var errors = [];
+        var options = convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName);
+        return { options: options, errors: errors };
+    }
+    ts.convertTypeAcquisitionFromJson = convertTypeAcquisitionFromJson;
+    function getDefaultCompilerOptions(configFileName) {
+        var options = configFileName && ts.getBaseFileName(configFileName) === "jsconfig.json"
+            ? { allowJs: true, maxNodeModuleJsDepth: 2, allowSyntheticDefaultImports: true, skipLibCheck: true, noEmit: true }
+            : {};
+        return options;
+    }
+    function convertCompilerOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
+        var options = getDefaultCompilerOptions(configFileName);
+        convertOptionsFromJson(getCommandLineCompilerOptionsMap(), jsonOptions, basePath, options, ts.compilerOptionsDidYouMeanDiagnostics, errors);
+        if (configFileName) {
+            options.configFilePath = ts.normalizeSlashes(configFileName);
+        }
+        return options;
+    }
+    function getDefaultTypeAcquisition(configFileName) {
+        return { enable: !!configFileName && ts.getBaseFileName(configFileName) === "jsconfig.json", include: [], exclude: [] };
+    }
+    function convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
+        var options = getDefaultTypeAcquisition(configFileName);
+        var typeAcquisition = convertEnableAutoDiscoveryToEnable(jsonOptions);
+        convertOptionsFromJson(getCommandLineTypeAcquisitionMap(), typeAcquisition, basePath, options, typeAcquisitionDidYouMeanDiagnostics, errors);
+        return options;
+    }
+    function convertWatchOptionsFromJsonWorker(jsonOptions, basePath, errors) {
+        return convertOptionsFromJson(getCommandLineWatchOptionsMap(), jsonOptions, basePath, undefined, watchOptionsDidYouMeanDiagnostics, errors);
+    }
+    function convertOptionsFromJson(optionsNameMap, jsonOptions, basePath, defaultOptions, diagnostics, errors) {
+        if (!jsonOptions) {
+            return;
+        }
+        for (var id in jsonOptions) {
+            var opt = optionsNameMap.get(id);
+            if (opt) {
+                (defaultOptions || (defaultOptions = {}))[opt.name] = convertJsonOption(opt, jsonOptions[id], basePath, errors);
+            }
+            else {
+                errors.push(createUnknownOptionError(id, diagnostics, ts.createCompilerDiagnostic));
+            }
+        }
+        return defaultOptions;
+    }
+    function convertJsonOption(opt, value, basePath, errors) {
+        if (isCompilerOptionsValue(opt, value)) {
+            var optType = opt.type;
+            if (optType === "list" && ts.isArray(value)) {
+                return convertJsonOptionOfListType(opt, value, basePath, errors);
+            }
+            else if (!ts.isString(optType)) {
+                return convertJsonOptionOfCustomType(opt, value, errors);
+            }
+            return normalizeNonListOptionValue(opt, basePath, value);
+        }
+        else {
+            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Compiler_option_0_requires_a_value_of_type_1, opt.name, getCompilerOptionValueTypeString(opt)));
+        }
+    }
+    function normalizeOptionValue(option, basePath, value) {
+        if (isNullOrUndefined(value))
+            return undefined;
+        if (option.type === "list") {
+            var listOption_1 = option;
+            if (listOption_1.element.isFilePath || !ts.isString(listOption_1.element.type)) {
+                return ts.filter(ts.map(value, function (v) { return normalizeOptionValue(listOption_1.element, basePath, v); }), function (v) { return !!v; });
+            }
+            return value;
+        }
+        else if (!ts.isString(option.type)) {
+            return option.type.get(ts.isString(value) ? value.toLowerCase() : value);
+        }
+        return normalizeNonListOptionValue(option, basePath, value);
+    }
+    function normalizeNonListOptionValue(option, basePath, value) {
+        if (option.isFilePath) {
+            value = ts.getNormalizedAbsolutePath(value, basePath);
+            if (value === "") {
+                value = ".";
+            }
+        }
+        return value;
+    }
+    function convertJsonOptionOfCustomType(opt, value, errors) {
+        if (isNullOrUndefined(value))
+            return undefined;
+        var key = value.toLowerCase();
+        var val = opt.type.get(key);
+        if (val !== undefined) {
+            return val;
+        }
+        else {
+            errors.push(createCompilerDiagnosticForInvalidCustomType(opt));
+        }
+    }
+    function convertJsonOptionOfListType(option, values, basePath, errors) {
+        return ts.filter(ts.map(values, function (v) { return convertJsonOption(option.element, v, basePath, errors); }), function (v) { return !!v; });
+    }
+    function trimString(s) {
+        return typeof s.trim === "function" ? s.trim() : s.replace(/^[\s]+|[\s]+$/g, "");
+    }
+    var invalidTrailingRecursionPattern = /(^|\/)\*\*\/?$/;
+    var invalidDotDotAfterRecursiveWildcardPattern = /(^|\/)\*\*\/(.*\/)?\.\.($|\/)/;
+    var watchRecursivePattern = /\/[^/]*?[*?][^/]*\//;
+    var wildcardDirectoryPattern = /^[^*?]*(?=\/[^/]*[*?])/;
+    function matchFileNames(filesSpecs, includeSpecs, excludeSpecs, basePath, options, host, errors, extraFileExtensions, jsonSourceFile) {
+        basePath = ts.normalizePath(basePath);
+        var validatedIncludeSpecs, validatedExcludeSpecs;
+        if (includeSpecs) {
+            validatedIncludeSpecs = validateSpecs(includeSpecs, errors, false, jsonSourceFile, "include");
+        }
+        if (excludeSpecs) {
+            validatedExcludeSpecs = validateSpecs(excludeSpecs, errors, true, jsonSourceFile, "exclude");
+        }
+        var wildcardDirectories = getWildcardDirectories(validatedIncludeSpecs, validatedExcludeSpecs, basePath, host.useCaseSensitiveFileNames);
+        var spec = { filesSpecs: filesSpecs, includeSpecs: includeSpecs, excludeSpecs: excludeSpecs, validatedIncludeSpecs: validatedIncludeSpecs, validatedExcludeSpecs: validatedExcludeSpecs, wildcardDirectories: wildcardDirectories };
+        return getFileNamesFromConfigSpecs(spec, basePath, options, host, extraFileExtensions);
+    }
+    function getFileNamesFromConfigSpecs(spec, basePath, options, host, extraFileExtensions) {
+        if (extraFileExtensions === void 0) { extraFileExtensions = []; }
+        basePath = ts.normalizePath(basePath);
+        var keyMapper = ts.createGetCanonicalFileName(host.useCaseSensitiveFileNames);
+        var literalFileMap = ts.createMap();
+        var wildcardFileMap = ts.createMap();
+        var wildCardJsonFileMap = ts.createMap();
+        var filesSpecs = spec.filesSpecs, validatedIncludeSpecs = spec.validatedIncludeSpecs, validatedExcludeSpecs = spec.validatedExcludeSpecs, wildcardDirectories = spec.wildcardDirectories;
+        var supportedExtensions = ts.getSupportedExtensions(options, extraFileExtensions);
+        var supportedExtensionsWithJsonIfResolveJsonModule = ts.getSuppoertedExtensionsWithJsonIfResolveJsonModule(options, supportedExtensions);
+        if (filesSpecs) {
+            for (var _i = 0, filesSpecs_1 = filesSpecs; _i < filesSpecs_1.length; _i++) {
+                var fileName = filesSpecs_1[_i];
+                var file = ts.getNormalizedAbsolutePath(fileName, basePath);
+                literalFileMap.set(keyMapper(file), file);
+            }
+        }
+        var jsonOnlyIncludeRegexes;
+        if (validatedIncludeSpecs && validatedIncludeSpecs.length > 0) {
+            var _loop_5 = function (file) {
+                if (ts.fileExtensionIs(file, ".json")) {
+                    if (!jsonOnlyIncludeRegexes) {
+                        var includes = validatedIncludeSpecs.filter(function (s) { return ts.endsWith(s, ".json"); });
+                        var includeFilePatterns = ts.map(ts.getRegularExpressionsForWildcards(includes, basePath, "files"), function (pattern) { return "^" + pattern + "$"; });
+                        jsonOnlyIncludeRegexes = includeFilePatterns ? includeFilePatterns.map(function (pattern) { return ts.getRegexFromPattern(pattern, host.useCaseSensitiveFileNames); }) : ts.emptyArray;
+                    }
+                    var includeIndex = ts.findIndex(jsonOnlyIncludeRegexes, function (re) { return re.test(file); });
+                    if (includeIndex !== -1) {
+                        var key_1 = keyMapper(file);
+                        if (!literalFileMap.has(key_1) && !wildCardJsonFileMap.has(key_1)) {
+                            wildCardJsonFileMap.set(key_1, file);
+                        }
+                    }
+                    return "continue";
+                }
+                if (hasFileWithHigherPriorityExtension(file, literalFileMap, wildcardFileMap, supportedExtensions, keyMapper)) {
+                    return "continue";
+                }
+                removeWildcardFilesWithLowerPriorityExtension(file, wildcardFileMap, supportedExtensions, keyMapper);
+                var key = keyMapper(file);
+                if (!literalFileMap.has(key) && !wildcardFileMap.has(key)) {
+                    wildcardFileMap.set(key, file);
+                }
+            };
+            for (var _a = 0, _b = host.readDirectory(basePath, supportedExtensionsWithJsonIfResolveJsonModule, validatedExcludeSpecs, validatedIncludeSpecs, undefined); _a < _b.length; _a++) {
+                var file = _b[_a];
+                _loop_5(file);
+            }
+        }
+        var literalFiles = ts.arrayFrom(literalFileMap.values());
+        var wildcardFiles = ts.arrayFrom(wildcardFileMap.values());
+        return {
+            fileNames: literalFiles.concat(wildcardFiles, ts.arrayFrom(wildCardJsonFileMap.values())),
+            wildcardDirectories: wildcardDirectories,
+            spec: spec
+        };
+    }
+    ts.getFileNamesFromConfigSpecs = getFileNamesFromConfigSpecs;
+    function validateSpecs(specs, errors, allowTrailingRecursion, jsonSourceFile, specKey) {
+        return specs.filter(function (spec) {
+            var diag = specToDiagnostic(spec, allowTrailingRecursion);
+            if (diag !== undefined) {
+                errors.push(createDiagnostic(diag, spec));
+            }
+            return diag === undefined;
+        });
+        function createDiagnostic(message, spec) {
+            var element = ts.getTsConfigPropArrayElementValue(jsonSourceFile, specKey, spec);
+            return element ?
+                ts.createDiagnosticForNodeInSourceFile(jsonSourceFile, element, message, spec) :
+                ts.createCompilerDiagnostic(message, spec);
+        }
+    }
+    function specToDiagnostic(spec, allowTrailingRecursion) {
+        if (!allowTrailingRecursion && invalidTrailingRecursionPattern.test(spec)) {
+            return ts.Diagnostics.File_specification_cannot_end_in_a_recursive_directory_wildcard_Asterisk_Asterisk_Colon_0;
+        }
+        else if (invalidDotDotAfterRecursiveWildcardPattern.test(spec)) {
+            return ts.Diagnostics.File_specification_cannot_contain_a_parent_directory_that_appears_after_a_recursive_directory_wildcard_Asterisk_Asterisk_Colon_0;
+        }
+    }
+    function getWildcardDirectories(include, exclude, path, useCaseSensitiveFileNames) {
+        var rawExcludeRegex = ts.getRegularExpressionForWildcard(exclude, path, "exclude");
+        var excludeRegex = rawExcludeRegex && new RegExp(rawExcludeRegex, useCaseSensitiveFileNames ? "" : "i");
+        var wildcardDirectories = {};
+        if (include !== undefined) {
+            var recursiveKeys = [];
+            for (var _i = 0, include_1 = include; _i < include_1.length; _i++) {
+                var file = include_1[_i];
+                var spec = ts.normalizePath(ts.combinePaths(path, file));
+                if (excludeRegex && excludeRegex.test(spec)) {
+                    continue;
+                }
+                var match = getWildcardDirectoryFromSpec(spec, useCaseSensitiveFileNames);
+                if (match) {
+                    var key = match.key, flags = match.flags;
+                    var existingFlags = wildcardDirectories[key];
+                    if (existingFlags === undefined || existingFlags < flags) {
+                        wildcardDirectories[key] = flags;
+                        if (flags === 1) {
+                            recursiveKeys.push(key);
+                        }
+                    }
+                }
+            }
+            for (var key in wildcardDirectories) {
+                if (ts.hasProperty(wildcardDirectories, key)) {
+                    for (var _a = 0, recursiveKeys_1 = recursiveKeys; _a < recursiveKeys_1.length; _a++) {
+                        var recursiveKey = recursiveKeys_1[_a];
+                        if (key !== recursiveKey && ts.containsPath(recursiveKey, key, path, !useCaseSensitiveFileNames)) {
+                            delete wildcardDirectories[key];
+                        }
+                    }
+                }
+            }
+        }
+        return wildcardDirectories;
+    }
+    function getWildcardDirectoryFromSpec(spec, useCaseSensitiveFileNames) {
+        var match = wildcardDirectoryPattern.exec(spec);
+        if (match) {
+            return {
+                key: useCaseSensitiveFileNames ? match[0] : ts.toFileNameLowerCase(match[0]),
+                flags: watchRecursivePattern.test(spec) ? 1 : 0
+            };
+        }
+        if (ts.isImplicitGlob(spec)) {
+            return { key: spec, flags: 1 };
+        }
+        return undefined;
+    }
+    function hasFileWithHigherPriorityExtension(file, literalFiles, wildcardFiles, extensions, keyMapper) {
+        var extensionPriority = ts.getExtensionPriority(file, extensions);
+        var adjustedExtensionPriority = ts.adjustExtensionPriority(extensionPriority, extensions);
+        for (var i = 0; i < adjustedExtensionPriority; i++) {
+            var higherPriorityExtension = extensions[i];
+            var higherPriorityPath = keyMapper(ts.changeExtension(file, higherPriorityExtension));
+            if (literalFiles.has(higherPriorityPath) || wildcardFiles.has(higherPriorityPath)) {
+                return true;
+            }
+        }
+        return false;
+    }
+    function removeWildcardFilesWithLowerPriorityExtension(file, wildcardFiles, extensions, keyMapper) {
+        var extensionPriority = ts.getExtensionPriority(file, extensions);
+        var nextExtensionPriority = ts.getNextLowestExtensionPriority(extensionPriority, extensions);
+        for (var i = nextExtensionPriority; i < extensions.length; i++) {
+            var lowerPriorityExtension = extensions[i];
+            var lowerPriorityPath = keyMapper(ts.changeExtension(file, lowerPriorityExtension));
+            wildcardFiles.delete(lowerPriorityPath);
+        }
+    }
+    function convertCompilerOptionsForTelemetry(opts) {
+        var out = {};
+        for (var key in opts) {
+            if (opts.hasOwnProperty(key)) {
+                var type = getOptionFromName(key);
+                if (type !== undefined) {
+                    out[key] = getOptionValueWithEmptyStrings(opts[key], type);
+                }
+            }
+        }
+        return out;
+    }
+    ts.convertCompilerOptionsForTelemetry = convertCompilerOptionsForTelemetry;
+    function getOptionValueWithEmptyStrings(value, option) {
+        switch (option.type) {
+            case "object":
+                return "";
+            case "string":
+                return "";
+            case "number":
+                return typeof value === "number" ? value : "";
+            case "boolean":
+                return typeof value === "boolean" ? value : "";
+            case "list":
+                var elementType_1 = option.element;
+                return ts.isArray(value) ? value.map(function (v) { return getOptionValueWithEmptyStrings(v, elementType_1); }) : "";
+            default:
+                return ts.forEachEntry(option.type, function (optionEnumValue, optionStringValue) {
+                    if (optionEnumValue === value) {
+                        return optionStringValue;
+                    }
+                });
+        }
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function trace(host) {
+        host.trace(ts.formatMessage.apply(undefined, arguments));
+    }
+    ts.trace = trace;
+    function isTraceEnabled(compilerOptions, host) {
+        return !!compilerOptions.traceResolution && host.trace !== undefined;
+    }
+    ts.isTraceEnabled = isTraceEnabled;
+    function withPackageId(packageInfo, r) {
+        var packageId;
+        if (r && packageInfo) {
+            var packageJsonContent = packageInfo.packageJsonContent;
+            if (typeof packageJsonContent.name === "string" && typeof packageJsonContent.version === "string") {
+                packageId = {
+                    name: packageJsonContent.name,
+                    subModuleName: r.path.slice(packageInfo.packageDirectory.length + ts.directorySeparator.length),
+                    version: packageJsonContent.version
+                };
+            }
+        }
+        return r && { path: r.path, extension: r.ext, packageId: packageId };
+    }
+    function noPackageId(r) {
+        return withPackageId(undefined, r);
+    }
+    function removeIgnoredPackageId(r) {
+        if (r) {
+            ts.Debug.assert(r.packageId === undefined);
+            return { path: r.path, ext: r.extension };
+        }
+    }
+    var Extensions;
+    (function (Extensions) {
+        Extensions[Extensions["TypeScript"] = 0] = "TypeScript";
+        Extensions[Extensions["JavaScript"] = 1] = "JavaScript";
+        Extensions[Extensions["Json"] = 2] = "Json";
+        Extensions[Extensions["TSConfig"] = 3] = "TSConfig";
+        Extensions[Extensions["DtsOnly"] = 4] = "DtsOnly";
+    })(Extensions || (Extensions = {}));
+    function resolvedTypeScriptOnly(resolved) {
+        if (!resolved) {
+            return undefined;
+        }
+        ts.Debug.assert(ts.extensionIsTS(resolved.extension));
+        return { fileName: resolved.path, packageId: resolved.packageId };
+    }
+    function createResolvedModuleWithFailedLookupLocations(resolved, isExternalLibraryImport, failedLookupLocations, resultFromCache) {
+        var _a;
+        if (resultFromCache) {
+            (_a = resultFromCache.failedLookupLocations).push.apply(_a, failedLookupLocations);
+            return resultFromCache;
+        }
+        return {
+            resolvedModule: resolved && { resolvedFileName: resolved.path, originalPath: resolved.originalPath === true ? undefined : resolved.originalPath, extension: resolved.extension, isExternalLibraryImport: isExternalLibraryImport, packageId: resolved.packageId },
+            failedLookupLocations: failedLookupLocations
+        };
+    }
+    function readPackageJsonField(jsonContent, fieldName, typeOfTag, state) {
+        if (!ts.hasProperty(jsonContent, fieldName)) {
+            if (state.traceEnabled) {
+                trace(state.host, ts.Diagnostics.package_json_does_not_have_a_0_field, fieldName);
+            }
+            return;
+        }
+        var value = jsonContent[fieldName];
+        if (typeof value !== typeOfTag || value === null) {
+            if (state.traceEnabled) {
+                trace(state.host, ts.Diagnostics.Expected_type_of_0_field_in_package_json_to_be_1_got_2, fieldName, typeOfTag, value === null ? "null" : typeof value);
+            }
+            return;
+        }
+        return value;
+    }
+    function readPackageJsonPathField(jsonContent, fieldName, baseDirectory, state) {
+        var fileName = readPackageJsonField(jsonContent, fieldName, "string", state);
+        if (fileName === undefined) {
+            return;
+        }
+        if (!fileName) {
+            if (state.traceEnabled) {
+                trace(state.host, ts.Diagnostics.package_json_had_a_falsy_0_field, fieldName);
+            }
+            return;
+        }
+        var path = ts.normalizePath(ts.combinePaths(baseDirectory, fileName));
+        if (state.traceEnabled) {
+            trace(state.host, ts.Diagnostics.package_json_has_0_field_1_that_references_2, fieldName, fileName, path);
+        }
+        return path;
+    }
+    function readPackageJsonTypesFields(jsonContent, baseDirectory, state) {
+        return readPackageJsonPathField(jsonContent, "typings", baseDirectory, state)
+            || readPackageJsonPathField(jsonContent, "types", baseDirectory, state);
+    }
+    function readPackageJsonTSConfigField(jsonContent, baseDirectory, state) {
+        return readPackageJsonPathField(jsonContent, "tsconfig", baseDirectory, state);
+    }
+    function readPackageJsonMainField(jsonContent, baseDirectory, state) {
+        return readPackageJsonPathField(jsonContent, "main", baseDirectory, state);
+    }
+    function readPackageJsonTypesVersionsField(jsonContent, state) {
+        var typesVersions = readPackageJsonField(jsonContent, "typesVersions", "object", state);
+        if (typesVersions === undefined)
+            return;
+        if (state.traceEnabled) {
+            trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_field_with_version_specific_path_mappings);
+        }
+        return typesVersions;
+    }
+    function readPackageJsonTypesVersionPaths(jsonContent, state) {
+        var typesVersions = readPackageJsonTypesVersionsField(jsonContent, state);
+        if (typesVersions === undefined)
+            return;
+        if (state.traceEnabled) {
+            for (var key in typesVersions) {
+                if (ts.hasProperty(typesVersions, key) && !ts.VersionRange.tryParse(key)) {
+                    trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_entry_0_that_is_not_a_valid_semver_range, key);
+                }
+            }
+        }
+        var result = getPackageJsonTypesVersionsPaths(typesVersions);
+        if (!result) {
+            if (state.traceEnabled) {
+                trace(state.host, ts.Diagnostics.package_json_does_not_have_a_typesVersions_entry_that_matches_version_0, ts.versionMajorMinor);
+            }
+            return;
+        }
+        var bestVersionKey = result.version, bestVersionPaths = result.paths;
+        if (typeof bestVersionPaths !== "object") {
+            if (state.traceEnabled) {
+                trace(state.host, ts.Diagnostics.Expected_type_of_0_field_in_package_json_to_be_1_got_2, "typesVersions['" + bestVersionKey + "']", "object", typeof bestVersionPaths);
+            }
+            return;
+        }
+        return result;
+    }
+    var typeScriptVersion;
+    function getPackageJsonTypesVersionsPaths(typesVersions) {
+        if (!typeScriptVersion)
+            typeScriptVersion = new ts.Version(ts.version);
+        for (var key in typesVersions) {
+            if (!ts.hasProperty(typesVersions, key))
+                continue;
+            var keyRange = ts.VersionRange.tryParse(key);
+            if (keyRange === undefined) {
+                continue;
+            }
+            if (keyRange.test(typeScriptVersion)) {
+                return { version: key, paths: typesVersions[key] };
+            }
+        }
+    }
+    ts.getPackageJsonTypesVersionsPaths = getPackageJsonTypesVersionsPaths;
+    function getEffectiveTypeRoots(options, host) {
+        if (options.typeRoots) {
+            return options.typeRoots;
+        }
+        var currentDirectory;
+        if (options.configFilePath) {
+            currentDirectory = ts.getDirectoryPath(options.configFilePath);
+        }
+        else if (host.getCurrentDirectory) {
+            currentDirectory = host.getCurrentDirectory();
+        }
+        if (currentDirectory !== undefined) {
+            return getDefaultTypeRoots(currentDirectory, host);
+        }
+    }
+    ts.getEffectiveTypeRoots = getEffectiveTypeRoots;
+    function getDefaultTypeRoots(currentDirectory, host) {
+        if (!host.directoryExists) {
+            return [ts.combinePaths(currentDirectory, nodeModulesAtTypes)];
+        }
+        var typeRoots;
+        ts.forEachAncestorDirectory(ts.normalizePath(currentDirectory), function (directory) {
+            var atTypes = ts.combinePaths(directory, nodeModulesAtTypes);
+            if (host.directoryExists(atTypes)) {
+                (typeRoots || (typeRoots = [])).push(atTypes);
+            }
+            return undefined;
+        });
+        return typeRoots;
+    }
+    var nodeModulesAtTypes = ts.combinePaths("node_modules", "@types");
+    function resolveTypeReferenceDirective(typeReferenceDirectiveName, containingFile, options, host, redirectedReference) {
+        var traceEnabled = isTraceEnabled(options, host);
+        if (redirectedReference) {
+            options = redirectedReference.commandLine.options;
+        }
+        var failedLookupLocations = [];
+        var moduleResolutionState = { compilerOptions: options, host: host, traceEnabled: traceEnabled, failedLookupLocations: failedLookupLocations };
+        var typeRoots = getEffectiveTypeRoots(options, host);
+        if (traceEnabled) {
+            if (containingFile === undefined) {
+                if (typeRoots === undefined) {
+                    trace(host, ts.Diagnostics.Resolving_type_reference_directive_0_containing_file_not_set_root_directory_not_set, typeReferenceDirectiveName);
+                }
+                else {
+                    trace(host, ts.Diagnostics.Resolving_type_reference_directive_0_containing_file_not_set_root_directory_1, typeReferenceDirectiveName, typeRoots);
+                }
+            }
+            else {
+                if (typeRoots === undefined) {
+                    trace(host, ts.Diagnostics.Resolving_type_reference_directive_0_containing_file_1_root_directory_not_set, typeReferenceDirectiveName, containingFile);
+                }
+                else {
+                    trace(host, ts.Diagnostics.Resolving_type_reference_directive_0_containing_file_1_root_directory_2, typeReferenceDirectiveName, containingFile, typeRoots);
+                }
+            }
+            if (redirectedReference) {
+                trace(host, ts.Diagnostics.Using_compiler_options_of_project_reference_redirect_0, redirectedReference.sourceFile.fileName);
+            }
+        }
+        var resolved = primaryLookup();
+        var primary = true;
+        if (!resolved) {
+            resolved = secondaryLookup();
+            primary = false;
+        }
+        var resolvedTypeReferenceDirective;
+        if (resolved) {
+            var fileName = resolved.fileName, packageId = resolved.packageId;
+            var resolvedFileName = options.preserveSymlinks ? fileName : realPath(fileName, host, traceEnabled);
+            if (traceEnabled) {
+                if (packageId) {
+                    trace(host, ts.Diagnostics.Type_reference_directive_0_was_successfully_resolved_to_1_with_Package_ID_2_primary_Colon_3, typeReferenceDirectiveName, resolvedFileName, ts.packageIdToString(packageId), primary);
+                }
+                else {
+                    trace(host, ts.Diagnostics.Type_reference_directive_0_was_successfully_resolved_to_1_primary_Colon_2, typeReferenceDirectiveName, resolvedFileName, primary);
+                }
+            }
+            resolvedTypeReferenceDirective = { primary: primary, resolvedFileName: resolvedFileName, packageId: packageId, isExternalLibraryImport: pathContainsNodeModules(fileName) };
+        }
+        return { resolvedTypeReferenceDirective: resolvedTypeReferenceDirective, failedLookupLocations: failedLookupLocations };
+        function primaryLookup() {
+            if (typeRoots && typeRoots.length) {
+                if (traceEnabled) {
+                    trace(host, ts.Diagnostics.Resolving_with_primary_search_path_0, typeRoots.join(", "));
+                }
+                return ts.firstDefined(typeRoots, function (typeRoot) {
+                    var candidate = ts.combinePaths(typeRoot, typeReferenceDirectiveName);
+                    var candidateDirectory = ts.getDirectoryPath(candidate);
+                    var directoryExists = ts.directoryProbablyExists(candidateDirectory, host);
+                    if (!directoryExists && traceEnabled) {
+                        trace(host, ts.Diagnostics.Directory_0_does_not_exist_skipping_all_lookups_in_it, candidateDirectory);
+                    }
+                    return resolvedTypeScriptOnly(loadNodeModuleFromDirectory(Extensions.DtsOnly, candidate, !directoryExists, moduleResolutionState));
+                });
+            }
+            else {
+                if (traceEnabled) {
+                    trace(host, ts.Diagnostics.Root_directory_cannot_be_determined_skipping_primary_search_paths);
+                }
+            }
+        }
+        function secondaryLookup() {
+            var initialLocationForSecondaryLookup = containingFile && ts.getDirectoryPath(containingFile);
+            if (initialLocationForSecondaryLookup !== undefined) {
+                if (traceEnabled) {
+                    trace(host, ts.Diagnostics.Looking_up_in_node_modules_folder_initial_location_0, initialLocationForSecondaryLookup);
+                }
+                var result = void 0;
+                if (!ts.isExternalModuleNameRelative(typeReferenceDirectiveName)) {
+                    var searchResult = loadModuleFromNearestNodeModulesDirectory(Extensions.DtsOnly, typeReferenceDirectiveName, initialLocationForSecondaryLookup, moduleResolutionState, undefined, undefined);
+                    result = searchResult && searchResult.value;
+                }
+                else {
+                    var candidate = ts.normalizePathAndParts(ts.combinePaths(initialLocationForSecondaryLookup, typeReferenceDirectiveName)).path;
+                    result = nodeLoadModuleByRelativeName(Extensions.DtsOnly, candidate, false, moduleResolutionState, true);
+                }
+                var resolvedFile = resolvedTypeScriptOnly(result);
+                if (!resolvedFile && traceEnabled) {
+                    trace(host, ts.Diagnostics.Type_reference_directive_0_was_not_resolved, typeReferenceDirectiveName);
+                }
+                return resolvedFile;
+            }
+            else {
+                if (traceEnabled) {
+                    trace(host, ts.Diagnostics.Containing_file_is_not_specified_and_root_directory_cannot_be_determined_skipping_lookup_in_node_modules_folder);
+                }
+            }
+        }
+    }
+    ts.resolveTypeReferenceDirective = resolveTypeReferenceDirective;
+    function getAutomaticTypeDirectiveNames(options, host) {
+        if (options.types) {
+            return options.types;
+        }
+        var result = [];
+        if (host.directoryExists && host.getDirectories) {
+            var typeRoots = getEffectiveTypeRoots(options, host);
+            if (typeRoots) {
+                for (var _i = 0, typeRoots_1 = typeRoots; _i < typeRoots_1.length; _i++) {
+                    var root = typeRoots_1[_i];
+                    if (host.directoryExists(root)) {
+                        for (var _a = 0, _b = host.getDirectories(root); _a < _b.length; _a++) {
+                            var typeDirectivePath = _b[_a];
+                            var normalized = ts.normalizePath(typeDirectivePath);
+                            var packageJsonPath = ts.combinePaths(root, normalized, "package.json");
+                            var isNotNeededPackage = host.fileExists(packageJsonPath) && ts.readJson(packageJsonPath, host).typings === null;
+                            if (!isNotNeededPackage) {
+                                var baseFileName = ts.getBaseFileName(normalized);
+                                if (baseFileName.charCodeAt(0) !== 46) {
+                                    result.push(baseFileName);
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        return result;
+    }
+    ts.getAutomaticTypeDirectiveNames = getAutomaticTypeDirectiveNames;
+    function createModuleResolutionCache(currentDirectory, getCanonicalFileName, options) {
+        return createModuleResolutionCacheWithMaps(createCacheWithRedirects(options), createCacheWithRedirects(options), currentDirectory, getCanonicalFileName);
+    }
+    ts.createModuleResolutionCache = createModuleResolutionCache;
+    function createCacheWithRedirects(options) {
+        var ownMap = ts.createMap();
+        var redirectsMap = ts.createMap();
+        return {
+            ownMap: ownMap,
+            redirectsMap: redirectsMap,
+            getOrCreateMapOfCacheRedirects: getOrCreateMapOfCacheRedirects,
+            clear: clear,
+            setOwnOptions: setOwnOptions,
+            setOwnMap: setOwnMap
+        };
+        function setOwnOptions(newOptions) {
+            options = newOptions;
+        }
+        function setOwnMap(newOwnMap) {
+            ownMap = newOwnMap;
+        }
+        function getOrCreateMapOfCacheRedirects(redirectedReference) {
+            if (!redirectedReference) {
+                return ownMap;
+            }
+            var path = redirectedReference.sourceFile.path;
+            var redirects = redirectsMap.get(path);
+            if (!redirects) {
+                redirects = !options || ts.optionsHaveModuleResolutionChanges(options, redirectedReference.commandLine.options) ? ts.createMap() : ownMap;
+                redirectsMap.set(path, redirects);
+            }
+            return redirects;
+        }
+        function clear() {
+            ownMap.clear();
+            redirectsMap.clear();
+        }
+    }
+    ts.createCacheWithRedirects = createCacheWithRedirects;
+    function createModuleResolutionCacheWithMaps(directoryToModuleNameMap, moduleNameToDirectoryMap, currentDirectory, getCanonicalFileName) {
+        return { getOrCreateCacheForDirectory: getOrCreateCacheForDirectory, getOrCreateCacheForModuleName: getOrCreateCacheForModuleName, directoryToModuleNameMap: directoryToModuleNameMap, moduleNameToDirectoryMap: moduleNameToDirectoryMap };
+        function getOrCreateCacheForDirectory(directoryName, redirectedReference) {
+            var path = ts.toPath(directoryName, currentDirectory, getCanonicalFileName);
+            return getOrCreateCache(directoryToModuleNameMap, redirectedReference, path, ts.createMap);
+        }
+        function getOrCreateCacheForModuleName(nonRelativeModuleName, redirectedReference) {
+            ts.Debug.assert(!ts.isExternalModuleNameRelative(nonRelativeModuleName));
+            return getOrCreateCache(moduleNameToDirectoryMap, redirectedReference, nonRelativeModuleName, createPerModuleNameCache);
+        }
+        function getOrCreateCache(cacheWithRedirects, redirectedReference, key, create) {
+            var cache = cacheWithRedirects.getOrCreateMapOfCacheRedirects(redirectedReference);
+            var result = cache.get(key);
+            if (!result) {
+                result = create();
+                cache.set(key, result);
+            }
+            return result;
+        }
+        function createPerModuleNameCache() {
+            var directoryPathMap = ts.createMap();
+            return { get: get, set: set };
+            function get(directory) {
+                return directoryPathMap.get(ts.toPath(directory, currentDirectory, getCanonicalFileName));
+            }
+            function set(directory, result) {
+                var path = ts.toPath(directory, currentDirectory, getCanonicalFileName);
+                if (directoryPathMap.has(path)) {
+                    return;
+                }
+                directoryPathMap.set(path, result);
+                var resolvedFileName = result.resolvedModule &&
+                    (result.resolvedModule.originalPath || result.resolvedModule.resolvedFileName);
+                var commonPrefix = resolvedFileName && getCommonPrefix(path, resolvedFileName);
+                var current = path;
+                while (current !== commonPrefix) {
+                    var parent = ts.getDirectoryPath(current);
+                    if (parent === current || directoryPathMap.has(parent)) {
+                        break;
+                    }
+                    directoryPathMap.set(parent, result);
+                    current = parent;
+                }
+            }
+            function getCommonPrefix(directory, resolution) {
+                var resolutionDirectory = ts.toPath(ts.getDirectoryPath(resolution), currentDirectory, getCanonicalFileName);
+                var i = 0;
+                var limit = Math.min(directory.length, resolutionDirectory.length);
+                while (i < limit && directory.charCodeAt(i) === resolutionDirectory.charCodeAt(i)) {
+                    i++;
+                }
+                if (i === directory.length && (resolutionDirectory.length === i || resolutionDirectory[i] === ts.directorySeparator)) {
+                    return directory;
+                }
+                var rootLength = ts.getRootLength(directory);
+                if (i < rootLength) {
+                    return undefined;
+                }
+                var sep = directory.lastIndexOf(ts.directorySeparator, i - 1);
+                if (sep === -1) {
+                    return undefined;
+                }
+                return directory.substr(0, Math.max(sep, rootLength));
+            }
+        }
+    }
+    ts.createModuleResolutionCacheWithMaps = createModuleResolutionCacheWithMaps;
+    function resolveModuleNameFromCache(moduleName, containingFile, cache) {
+        var containingDirectory = ts.getDirectoryPath(containingFile);
+        var perFolderCache = cache && cache.getOrCreateCacheForDirectory(containingDirectory);
+        return perFolderCache && perFolderCache.get(moduleName);
+    }
+    ts.resolveModuleNameFromCache = resolveModuleNameFromCache;
+    function resolveModuleName(moduleName, containingFile, compilerOptions, host, cache, redirectedReference) {
+        var traceEnabled = isTraceEnabled(compilerOptions, host);
+        if (redirectedReference) {
+            compilerOptions = redirectedReference.commandLine.options;
+        }
+        if (traceEnabled) {
+            trace(host, ts.Diagnostics.Resolving_module_0_from_1, moduleName, containingFile);
+            if (redirectedReference) {
+                trace(host, ts.Diagnostics.Using_compiler_options_of_project_reference_redirect_0, redirectedReference.sourceFile.fileName);
+            }
+        }
+        var containingDirectory = ts.getDirectoryPath(containingFile);
+        var perFolderCache = cache && cache.getOrCreateCacheForDirectory(containingDirectory, redirectedReference);
+        var result = perFolderCache && perFolderCache.get(moduleName);
+        if (result) {
+            if (traceEnabled) {
+                trace(host, ts.Diagnostics.Resolution_for_module_0_was_found_in_cache_from_location_1, moduleName, containingDirectory);
+            }
+        }
+        else {
+            var moduleResolution = compilerOptions.moduleResolution;
+            if (moduleResolution === undefined) {
+                moduleResolution = ts.getEmitModuleKind(compilerOptions) === ts.ModuleKind.CommonJS ? ts.ModuleResolutionKind.NodeJs : ts.ModuleResolutionKind.Classic;
+                if (traceEnabled) {
+                    trace(host, ts.Diagnostics.Module_resolution_kind_is_not_specified_using_0, ts.ModuleResolutionKind[moduleResolution]);
+                }
+            }
+            else {
+                if (traceEnabled) {
+                    trace(host, ts.Diagnostics.Explicitly_specified_module_resolution_kind_Colon_0, ts.ModuleResolutionKind[moduleResolution]);
+                }
+            }
+            ts.perfLogger.logStartResolveModule(moduleName);
+            switch (moduleResolution) {
+                case ts.ModuleResolutionKind.NodeJs:
+                    result = nodeModuleNameResolver(moduleName, containingFile, compilerOptions, host, cache, redirectedReference);
+                    break;
+                case ts.ModuleResolutionKind.Classic:
+                    result = classicNameResolver(moduleName, containingFile, compilerOptions, host, cache, redirectedReference);
+                    break;
+                default:
+                    return ts.Debug.fail("Unexpected moduleResolution: " + moduleResolution);
+            }
+            if (result && result.resolvedModule)
+                ts.perfLogger.logInfoEvent("Module \"" + moduleName + "\" resolved to \"" + result.resolvedModule.resolvedFileName + "\"");
+            ts.perfLogger.logStopResolveModule((result && result.resolvedModule) ? "" + result.resolvedModule.resolvedFileName : "null");
+            if (perFolderCache) {
+                perFolderCache.set(moduleName, result);
+                if (!ts.isExternalModuleNameRelative(moduleName)) {
+                    cache.getOrCreateCacheForModuleName(moduleName, redirectedReference).set(containingDirectory, result);
+                }
+            }
+        }
+        if (traceEnabled) {
+            if (result.resolvedModule) {
+                if (result.resolvedModule.packageId) {
+                    trace(host, ts.Diagnostics.Module_name_0_was_successfully_resolved_to_1_with_Package_ID_2, moduleName, result.resolvedModule.resolvedFileName, ts.packageIdToString(result.resolvedModule.packageId));
+                }
+                else {
+                    trace(host, ts.Diagnostics.Module_name_0_was_successfully_resolved_to_1, moduleName, result.resolvedModule.resolvedFileName);
+                }
+            }
+            else {
+                trace(host, ts.Diagnostics.Module_name_0_was_not_resolved, moduleName);
+            }
+        }
+        return result;
+    }
+    ts.resolveModuleName = resolveModuleName;
+    function tryLoadModuleUsingOptionalResolutionSettings(extensions, moduleName, containingDirectory, loader, state) {
+        var resolved = tryLoadModuleUsingPathsIfEligible(extensions, moduleName, loader, state);
+        if (resolved)
+            return resolved.value;
+        if (!ts.isExternalModuleNameRelative(moduleName)) {
+            return tryLoadModuleUsingBaseUrl(extensions, moduleName, loader, state);
+        }
+        else {
+            return tryLoadModuleUsingRootDirs(extensions, moduleName, containingDirectory, loader, state);
+        }
+    }
+    function tryLoadModuleUsingPathsIfEligible(extensions, moduleName, loader, state) {
+        var _a = state.compilerOptions, baseUrl = _a.baseUrl, paths = _a.paths;
+        if (baseUrl && paths && !ts.pathIsRelative(moduleName)) {
+            if (state.traceEnabled) {
+                trace(state.host, ts.Diagnostics.baseUrl_option_is_set_to_0_using_this_value_to_resolve_non_relative_module_name_1, baseUrl, moduleName);
+                trace(state.host, ts.Diagnostics.paths_option_is_specified_looking_for_a_pattern_to_match_module_name_0, moduleName);
+            }
+            return tryLoadModuleUsingPaths(extensions, moduleName, baseUrl, paths, loader, false, state);
+        }
+    }
+    function tryLoadModuleUsingRootDirs(extensions, moduleName, containingDirectory, loader, state) {
+        if (!state.compilerOptions.rootDirs) {
+            return undefined;
+        }
+        if (state.traceEnabled) {
+            trace(state.host, ts.Diagnostics.rootDirs_option_is_set_using_it_to_resolve_relative_module_name_0, moduleName);
+        }
+        var candidate = ts.normalizePath(ts.combinePaths(containingDirectory, moduleName));
+        var matchedRootDir;
+        var matchedNormalizedPrefix;
+        for (var _i = 0, _a = state.compilerOptions.rootDirs; _i < _a.length; _i++) {
+            var rootDir = _a[_i];
+            var normalizedRoot = ts.normalizePath(rootDir);
+            if (!ts.endsWith(normalizedRoot, ts.directorySeparator)) {
+                normalizedRoot += ts.directorySeparator;
+            }
+            var isLongestMatchingPrefix = ts.startsWith(candidate, normalizedRoot) &&
+                (matchedNormalizedPrefix === undefined || matchedNormalizedPrefix.length < normalizedRoot.length);
+            if (state.traceEnabled) {
+                trace(state.host, ts.Diagnostics.Checking_if_0_is_the_longest_matching_prefix_for_1_2, normalizedRoot, candidate, isLongestMatchingPrefix);
+            }
+            if (isLongestMatchingPrefix) {
+                matchedNormalizedPrefix = normalizedRoot;
+                matchedRootDir = rootDir;
+            }
+        }
+        if (matchedNormalizedPrefix) {
+            if (state.traceEnabled) {
+                trace(state.host, ts.Diagnostics.Longest_matching_prefix_for_0_is_1, candidate, matchedNormalizedPrefix);
+            }
+            var suffix = candidate.substr(matchedNormalizedPrefix.length);
+            if (state.traceEnabled) {
+                trace(state.host, ts.Diagnostics.Loading_0_from_the_root_dir_1_candidate_location_2, suffix, matchedNormalizedPrefix, candidate);
+            }
+            var resolvedFileName = loader(extensions, candidate, !ts.directoryProbablyExists(containingDirectory, state.host), state);
+            if (resolvedFileName) {
+                return resolvedFileName;
+            }
+            if (state.traceEnabled) {
+                trace(state.host, ts.Diagnostics.Trying_other_entries_in_rootDirs);
+            }
+            for (var _b = 0, _c = state.compilerOptions.rootDirs; _b < _c.length; _b++) {
+                var rootDir = _c[_b];
+                if (rootDir === matchedRootDir) {
+                    continue;
+                }
+                var candidate_1 = ts.combinePaths(ts.normalizePath(rootDir), suffix);
+                if (state.traceEnabled) {
+                    trace(state.host, ts.Diagnostics.Loading_0_from_the_root_dir_1_candidate_location_2, suffix, rootDir, candidate_1);
+                }
+                var baseDirectory = ts.getDirectoryPath(candidate_1);
+                var resolvedFileName_1 = loader(extensions, candidate_1, !ts.directoryProbablyExists(baseDirectory, state.host), state);
+                if (resolvedFileName_1) {
+                    return resolvedFileName_1;
+                }
+            }
+            if (state.traceEnabled) {
+                trace(state.host, ts.Diagnostics.Module_resolution_using_rootDirs_has_failed);
+            }
+        }
+        return undefined;
+    }
+    function tryLoadModuleUsingBaseUrl(extensions, moduleName, loader, state) {
+        var baseUrl = state.compilerOptions.baseUrl;
+        if (!baseUrl) {
+            return undefined;
+        }
+        if (state.traceEnabled) {
+            trace(state.host, ts.Diagnostics.baseUrl_option_is_set_to_0_using_this_value_to_resolve_non_relative_module_name_1, baseUrl, moduleName);
+        }
+        var candidate = ts.normalizePath(ts.combinePaths(baseUrl, moduleName));
+        if (state.traceEnabled) {
+            trace(state.host, ts.Diagnostics.Resolving_module_name_0_relative_to_base_url_1_2, moduleName, baseUrl, candidate);
+        }
+        return loader(extensions, candidate, !ts.directoryProbablyExists(ts.getDirectoryPath(candidate), state.host), state);
+    }
+    function resolveJSModule(moduleName, initialDir, host) {
+        var _a = tryResolveJSModuleWorker(moduleName, initialDir, host), resolvedModule = _a.resolvedModule, failedLookupLocations = _a.failedLookupLocations;
+        if (!resolvedModule) {
+            throw new Error("Could not resolve JS module '" + moduleName + "' starting at '" + initialDir + "'. Looked in: " + failedLookupLocations.join(", "));
+        }
+        return resolvedModule.resolvedFileName;
+    }
+    ts.resolveJSModule = resolveJSModule;
+    function tryResolveJSModule(moduleName, initialDir, host) {
+        var resolvedModule = tryResolveJSModuleWorker(moduleName, initialDir, host).resolvedModule;
+        return resolvedModule && resolvedModule.resolvedFileName;
+    }
+    ts.tryResolveJSModule = tryResolveJSModule;
+    var jsOnlyExtensions = [Extensions.JavaScript];
+    var tsExtensions = [Extensions.TypeScript, Extensions.JavaScript];
+    var tsPlusJsonExtensions = __spreadArrays(tsExtensions, [Extensions.Json]);
+    var tsconfigExtensions = [Extensions.TSConfig];
+    function tryResolveJSModuleWorker(moduleName, initialDir, host) {
+        return nodeModuleNameResolverWorker(moduleName, initialDir, { moduleResolution: ts.ModuleResolutionKind.NodeJs, allowJs: true }, host, undefined, jsOnlyExtensions, undefined);
+    }
+    function nodeModuleNameResolver(moduleName, containingFile, compilerOptions, host, cache, redirectedReference, lookupConfig) {
+        return nodeModuleNameResolverWorker(moduleName, ts.getDirectoryPath(containingFile), compilerOptions, host, cache, lookupConfig ? tsconfigExtensions : (compilerOptions.resolveJsonModule ? tsPlusJsonExtensions : tsExtensions), redirectedReference);
+    }
+    ts.nodeModuleNameResolver = nodeModuleNameResolver;
+    function nodeModuleNameResolverWorker(moduleName, containingDirectory, compilerOptions, host, cache, extensions, redirectedReference) {
+        var _a, _b;
+        var traceEnabled = isTraceEnabled(compilerOptions, host);
+        var failedLookupLocations = [];
+        var state = { compilerOptions: compilerOptions, host: host, traceEnabled: traceEnabled, failedLookupLocations: failedLookupLocations };
+        var result = ts.forEach(extensions, function (ext) { return tryResolve(ext); });
+        return createResolvedModuleWithFailedLookupLocations((_a = result === null || result === void 0 ? void 0 : result.value) === null || _a === void 0 ? void 0 : _a.resolved, (_b = result === null || result === void 0 ? void 0 : result.value) === null || _b === void 0 ? void 0 : _b.isExternalLibraryImport, failedLookupLocations, state.resultFromCache);
+        function tryResolve(extensions) {
+            var loader = function (extensions, candidate, onlyRecordFailures, state) { return nodeLoadModuleByRelativeName(extensions, candidate, onlyRecordFailures, state, true); };
+            var resolved = tryLoadModuleUsingOptionalResolutionSettings(extensions, moduleName, containingDirectory, loader, state);
+            if (resolved) {
+                return toSearchResult({ resolved: resolved, isExternalLibraryImport: pathContainsNodeModules(resolved.path) });
+            }
+            if (!ts.isExternalModuleNameRelative(moduleName)) {
+                if (traceEnabled) {
+                    trace(host, ts.Diagnostics.Loading_module_0_from_node_modules_folder_target_file_type_1, moduleName, Extensions[extensions]);
+                }
+                var resolved_1 = loadModuleFromNearestNodeModulesDirectory(extensions, moduleName, containingDirectory, state, cache, redirectedReference);
+                if (!resolved_1)
+                    return undefined;
+                var resolvedValue = resolved_1.value;
+                if (!compilerOptions.preserveSymlinks && resolvedValue && !resolvedValue.originalPath) {
+                    var path = realPath(resolvedValue.path, host, traceEnabled);
+                    var originalPath = path === resolvedValue.path ? undefined : resolvedValue.path;
+                    resolvedValue = __assign(__assign({}, resolvedValue), { path: path, originalPath: originalPath });
+                }
+                return { value: resolvedValue && { resolved: resolvedValue, isExternalLibraryImport: true } };
+            }
+            else {
+                var _a = ts.normalizePathAndParts(ts.combinePaths(containingDirectory, moduleName)), candidate = _a.path, parts = _a.parts;
+                var resolved_2 = nodeLoadModuleByRelativeName(extensions, candidate, false, state, true);
+                return resolved_2 && toSearchResult({ resolved: resolved_2, isExternalLibraryImport: ts.contains(parts, "node_modules") });
+            }
+        }
+    }
+    function realPath(path, host, traceEnabled) {
+        if (!host.realpath) {
+            return path;
+        }
+        var real = ts.normalizePath(host.realpath(path));
+        if (traceEnabled) {
+            trace(host, ts.Diagnostics.Resolving_real_path_for_0_result_1, path, real);
+        }
+        ts.Debug.assert(host.fileExists(real), path + " linked to nonexistent file " + real);
+        return real;
+    }
+    function nodeLoadModuleByRelativeName(extensions, candidate, onlyRecordFailures, state, considerPackageJson) {
+        if (state.traceEnabled) {
+            trace(state.host, ts.Diagnostics.Loading_module_as_file_Slash_folder_candidate_module_location_0_target_file_type_1, candidate, Extensions[extensions]);
+        }
+        if (!ts.hasTrailingDirectorySeparator(candidate)) {
+            if (!onlyRecordFailures) {
+                var parentOfCandidate = ts.getDirectoryPath(candidate);
+                if (!ts.directoryProbablyExists(parentOfCandidate, state.host)) {
+                    if (state.traceEnabled) {
+                        trace(state.host, ts.Diagnostics.Directory_0_does_not_exist_skipping_all_lookups_in_it, parentOfCandidate);
+                    }
+                    onlyRecordFailures = true;
+                }
+            }
+            var resolvedFromFile = loadModuleFromFile(extensions, candidate, onlyRecordFailures, state);
+            if (resolvedFromFile) {
+                var packageDirectory = considerPackageJson ? parseNodeModuleFromPath(resolvedFromFile) : undefined;
+                var packageInfo = packageDirectory ? getPackageJsonInfo(packageDirectory, false, state) : undefined;
+                return withPackageId(packageInfo, resolvedFromFile);
+            }
+        }
+        if (!onlyRecordFailures) {
+            var candidateExists = ts.directoryProbablyExists(candidate, state.host);
+            if (!candidateExists) {
+                if (state.traceEnabled) {
+                    trace(state.host, ts.Diagnostics.Directory_0_does_not_exist_skipping_all_lookups_in_it, candidate);
+                }
+                onlyRecordFailures = true;
+            }
+        }
+        return loadNodeModuleFromDirectory(extensions, candidate, onlyRecordFailures, state, considerPackageJson);
+    }
+    ts.nodeModulesPathPart = "/node_modules/";
+    function pathContainsNodeModules(path) {
+        return ts.stringContains(path, ts.nodeModulesPathPart);
+    }
+    ts.pathContainsNodeModules = pathContainsNodeModules;
+    function parseNodeModuleFromPath(resolved) {
+        var path = ts.normalizePath(resolved.path);
+        var idx = path.lastIndexOf(ts.nodeModulesPathPart);
+        if (idx === -1) {
+            return undefined;
+        }
+        var indexAfterNodeModules = idx + ts.nodeModulesPathPart.length;
+        var indexAfterPackageName = moveToNextDirectorySeparatorIfAvailable(path, indexAfterNodeModules);
+        if (path.charCodeAt(indexAfterNodeModules) === 64) {
+            indexAfterPackageName = moveToNextDirectorySeparatorIfAvailable(path, indexAfterPackageName);
+        }
+        return path.slice(0, indexAfterPackageName);
+    }
+    function moveToNextDirectorySeparatorIfAvailable(path, prevSeparatorIndex) {
+        var nextSeparatorIndex = path.indexOf(ts.directorySeparator, prevSeparatorIndex + 1);
+        return nextSeparatorIndex === -1 ? prevSeparatorIndex : nextSeparatorIndex;
+    }
+    function loadModuleFromFileNoPackageId(extensions, candidate, onlyRecordFailures, state) {
+        return noPackageId(loadModuleFromFile(extensions, candidate, onlyRecordFailures, state));
+    }
+    function loadModuleFromFile(extensions, candidate, onlyRecordFailures, state) {
+        if (extensions === Extensions.Json || extensions === Extensions.TSConfig) {
+            var extensionLess = ts.tryRemoveExtension(candidate, ".json");
+            return (extensionLess === undefined && extensions === Extensions.Json) ? undefined : tryAddingExtensions(extensionLess || candidate, extensions, onlyRecordFailures, state);
+        }
+        var resolvedByAddingExtension = tryAddingExtensions(candidate, extensions, onlyRecordFailures, state);
+        if (resolvedByAddingExtension) {
+            return resolvedByAddingExtension;
+        }
+        if (ts.hasJSFileExtension(candidate)) {
+            var extensionless = ts.removeFileExtension(candidate);
+            if (state.traceEnabled) {
+                var extension = candidate.substring(extensionless.length);
+                trace(state.host, ts.Diagnostics.File_name_0_has_a_1_extension_stripping_it, candidate, extension);
+            }
+            return tryAddingExtensions(extensionless, extensions, onlyRecordFailures, state);
+        }
+    }
+    function tryAddingExtensions(candidate, extensions, onlyRecordFailures, state) {
+        if (!onlyRecordFailures) {
+            var directory = ts.getDirectoryPath(candidate);
+            if (directory) {
+                onlyRecordFailures = !ts.directoryProbablyExists(directory, state.host);
+            }
+        }
+        switch (extensions) {
+            case Extensions.DtsOnly:
+                return tryExtension(".d.ts");
+            case Extensions.TypeScript:
+                return tryExtension(".ts") || tryExtension(".tsx") || tryExtension(".d.ts");
+            case Extensions.JavaScript:
+                return tryExtension(".js") || tryExtension(".jsx");
+            case Extensions.TSConfig:
+            case Extensions.Json:
+                return tryExtension(".json");
+        }
+        function tryExtension(ext) {
+            var path = tryFile(candidate + ext, onlyRecordFailures, state);
+            return path === undefined ? undefined : { path: path, ext: ext };
+        }
+    }
+    function tryFile(fileName, onlyRecordFailures, state) {
+        if (!onlyRecordFailures) {
+            if (state.host.fileExists(fileName)) {
+                if (state.traceEnabled) {
+                    trace(state.host, ts.Diagnostics.File_0_exist_use_it_as_a_name_resolution_result, fileName);
+                }
+                return fileName;
+            }
+            else {
+                if (state.traceEnabled) {
+                    trace(state.host, ts.Diagnostics.File_0_does_not_exist, fileName);
+                }
+            }
+        }
+        state.failedLookupLocations.push(fileName);
+        return undefined;
+    }
+    function loadNodeModuleFromDirectory(extensions, candidate, onlyRecordFailures, state, considerPackageJson) {
+        if (considerPackageJson === void 0) { considerPackageJson = true; }
+        var packageInfo = considerPackageJson ? getPackageJsonInfo(candidate, onlyRecordFailures, state) : undefined;
+        var packageJsonContent = packageInfo && packageInfo.packageJsonContent;
+        var versionPaths = packageInfo && packageInfo.versionPaths;
+        return withPackageId(packageInfo, loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageJsonContent, versionPaths));
+    }
+    function getPackageJsonInfo(packageDirectory, onlyRecordFailures, state) {
+        var host = state.host, traceEnabled = state.traceEnabled;
+        var directoryExists = !onlyRecordFailures && ts.directoryProbablyExists(packageDirectory, host);
+        var packageJsonPath = ts.combinePaths(packageDirectory, "package.json");
+        if (directoryExists && host.fileExists(packageJsonPath)) {
+            var packageJsonContent = ts.readJson(packageJsonPath, host);
+            if (traceEnabled) {
+                trace(host, ts.Diagnostics.Found_package_json_at_0, packageJsonPath);
+            }
+            var versionPaths = readPackageJsonTypesVersionPaths(packageJsonContent, state);
+            return { packageDirectory: packageDirectory, packageJsonContent: packageJsonContent, versionPaths: versionPaths };
+        }
+        else {
+            if (directoryExists && traceEnabled) {
+                trace(host, ts.Diagnostics.File_0_does_not_exist, packageJsonPath);
+            }
+            state.failedLookupLocations.push(packageJsonPath);
+        }
+    }
+    function loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, jsonContent, versionPaths) {
+        var packageFile;
+        if (jsonContent) {
+            switch (extensions) {
+                case Extensions.JavaScript:
+                case Extensions.Json:
+                    packageFile = readPackageJsonMainField(jsonContent, candidate, state);
+                    break;
+                case Extensions.TypeScript:
+                    packageFile = readPackageJsonTypesFields(jsonContent, candidate, state) || readPackageJsonMainField(jsonContent, candidate, state);
+                    break;
+                case Extensions.DtsOnly:
+                    packageFile = readPackageJsonTypesFields(jsonContent, candidate, state);
+                    break;
+                case Extensions.TSConfig:
+                    packageFile = readPackageJsonTSConfigField(jsonContent, candidate, state);
+                    break;
+                default:
+                    return ts.Debug.assertNever(extensions);
+            }
+        }
+        var loader = function (extensions, candidate, onlyRecordFailures, state) {
+            var fromFile = tryFile(candidate, onlyRecordFailures, state);
+            if (fromFile) {
+                var resolved = resolvedIfExtensionMatches(extensions, fromFile);
+                if (resolved) {
+                    return noPackageId(resolved);
+                }
+                if (state.traceEnabled) {
+                    trace(state.host, ts.Diagnostics.File_0_has_an_unsupported_extension_so_skipping_it, fromFile);
+                }
+            }
+            var nextExtensions = extensions === Extensions.DtsOnly ? Extensions.TypeScript : extensions;
+            return nodeLoadModuleByRelativeName(nextExtensions, candidate, onlyRecordFailures, state, false);
+        };
+        var onlyRecordFailuresForPackageFile = packageFile ? !ts.directoryProbablyExists(ts.getDirectoryPath(packageFile), state.host) : undefined;
+        var onlyRecordFailuresForIndex = onlyRecordFailures || !ts.directoryProbablyExists(candidate, state.host);
+        var indexPath = ts.combinePaths(candidate, extensions === Extensions.TSConfig ? "tsconfig" : "index");
+        if (versionPaths && (!packageFile || ts.containsPath(candidate, packageFile))) {
+            var moduleName = ts.getRelativePathFromDirectory(candidate, packageFile || indexPath, false);
+            if (state.traceEnabled) {
+                trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_match_module_name_2, versionPaths.version, ts.version, moduleName);
+            }
+            var result = tryLoadModuleUsingPaths(extensions, moduleName, candidate, versionPaths.paths, loader, onlyRecordFailuresForPackageFile || onlyRecordFailuresForIndex, state);
+            if (result) {
+                return removeIgnoredPackageId(result.value);
+            }
+        }
+        var packageFileResult = packageFile && removeIgnoredPackageId(loader(extensions, packageFile, onlyRecordFailuresForPackageFile, state));
+        if (packageFileResult)
+            return packageFileResult;
+        return loadModuleFromFile(extensions, indexPath, onlyRecordFailuresForIndex, state);
+    }
+    function resolvedIfExtensionMatches(extensions, path) {
+        var ext = ts.tryGetExtensionFromPath(path);
+        return ext !== undefined && extensionIsOk(extensions, ext) ? { path: path, ext: ext } : undefined;
+    }
+    function extensionIsOk(extensions, extension) {
+        switch (extensions) {
+            case Extensions.JavaScript:
+                return extension === ".js" || extension === ".jsx";
+            case Extensions.TSConfig:
+            case Extensions.Json:
+                return extension === ".json";
+            case Extensions.TypeScript:
+                return extension === ".ts" || extension === ".tsx" || extension === ".d.ts";
+            case Extensions.DtsOnly:
+                return extension === ".d.ts";
+        }
+    }
+    function parsePackageName(moduleName) {
+        var idx = moduleName.indexOf(ts.directorySeparator);
+        if (moduleName[0] === "@") {
+            idx = moduleName.indexOf(ts.directorySeparator, idx + 1);
+        }
+        return idx === -1 ? { packageName: moduleName, rest: "" } : { packageName: moduleName.slice(0, idx), rest: moduleName.slice(idx + 1) };
+    }
+    ts.parsePackageName = parsePackageName;
+    function loadModuleFromNearestNodeModulesDirectory(extensions, moduleName, directory, state, cache, redirectedReference) {
+        return loadModuleFromNearestNodeModulesDirectoryWorker(extensions, moduleName, directory, state, false, cache, redirectedReference);
+    }
+    function loadModuleFromNearestNodeModulesDirectoryTypesScope(moduleName, directory, state) {
+        return loadModuleFromNearestNodeModulesDirectoryWorker(Extensions.DtsOnly, moduleName, directory, state, true, undefined, undefined);
+    }
+    function loadModuleFromNearestNodeModulesDirectoryWorker(extensions, moduleName, directory, state, typesScopeOnly, cache, redirectedReference) {
+        var perModuleNameCache = cache && cache.getOrCreateCacheForModuleName(moduleName, redirectedReference);
+        return ts.forEachAncestorDirectory(ts.normalizeSlashes(directory), function (ancestorDirectory) {
+            if (ts.getBaseFileName(ancestorDirectory) !== "node_modules") {
+                var resolutionFromCache = tryFindNonRelativeModuleNameInCache(perModuleNameCache, moduleName, ancestorDirectory, state);
+                if (resolutionFromCache) {
+                    return resolutionFromCache;
+                }
+                return toSearchResult(loadModuleFromImmediateNodeModulesDirectory(extensions, moduleName, ancestorDirectory, state, typesScopeOnly));
+            }
+        });
+    }
+    function loadModuleFromImmediateNodeModulesDirectory(extensions, moduleName, directory, state, typesScopeOnly) {
+        var nodeModulesFolder = ts.combinePaths(directory, "node_modules");
+        var nodeModulesFolderExists = ts.directoryProbablyExists(nodeModulesFolder, state.host);
+        if (!nodeModulesFolderExists && state.traceEnabled) {
+            trace(state.host, ts.Diagnostics.Directory_0_does_not_exist_skipping_all_lookups_in_it, nodeModulesFolder);
+        }
+        var packageResult = typesScopeOnly ? undefined : loadModuleFromSpecificNodeModulesDirectory(extensions, moduleName, nodeModulesFolder, nodeModulesFolderExists, state);
+        if (packageResult) {
+            return packageResult;
+        }
+        if (extensions === Extensions.TypeScript || extensions === Extensions.DtsOnly) {
+            var nodeModulesAtTypes_1 = ts.combinePaths(nodeModulesFolder, "@types");
+            var nodeModulesAtTypesExists = nodeModulesFolderExists;
+            if (nodeModulesFolderExists && !ts.directoryProbablyExists(nodeModulesAtTypes_1, state.host)) {
+                if (state.traceEnabled) {
+                    trace(state.host, ts.Diagnostics.Directory_0_does_not_exist_skipping_all_lookups_in_it, nodeModulesAtTypes_1);
+                }
+                nodeModulesAtTypesExists = false;
+            }
+            return loadModuleFromSpecificNodeModulesDirectory(Extensions.DtsOnly, mangleScopedPackageNameWithTrace(moduleName, state), nodeModulesAtTypes_1, nodeModulesAtTypesExists, state);
+        }
+    }
+    function loadModuleFromSpecificNodeModulesDirectory(extensions, moduleName, nodeModulesDirectory, nodeModulesDirectoryExists, state) {
+        var candidate = ts.normalizePath(ts.combinePaths(nodeModulesDirectory, moduleName));
+        var packageInfo = getPackageJsonInfo(candidate, !nodeModulesDirectoryExists, state);
+        if (packageInfo) {
+            var fromFile = loadModuleFromFile(extensions, candidate, !nodeModulesDirectoryExists, state);
+            if (fromFile) {
+                return noPackageId(fromFile);
+            }
+            var fromDirectory = loadNodeModuleFromDirectoryWorker(extensions, candidate, !nodeModulesDirectoryExists, state, packageInfo.packageJsonContent, packageInfo.versionPaths);
+            return withPackageId(packageInfo, fromDirectory);
+        }
+        var loader = function (extensions, candidate, onlyRecordFailures, state) {
+            var pathAndExtension = loadModuleFromFile(extensions, candidate, onlyRecordFailures, state) ||
+                loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageInfo && packageInfo.packageJsonContent, packageInfo && packageInfo.versionPaths);
+            return withPackageId(packageInfo, pathAndExtension);
+        };
+        var _a = parsePackageName(moduleName), packageName = _a.packageName, rest = _a.rest;
+        if (rest !== "") {
+            var packageDirectory = ts.combinePaths(nodeModulesDirectory, packageName);
+            packageInfo = getPackageJsonInfo(packageDirectory, !nodeModulesDirectoryExists, state);
+            if (packageInfo && packageInfo.versionPaths) {
+                if (state.traceEnabled) {
+                    trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_match_module_name_2, packageInfo.versionPaths.version, ts.version, rest);
+                }
+                var packageDirectoryExists = nodeModulesDirectoryExists && ts.directoryProbablyExists(packageDirectory, state.host);
+                var fromPaths = tryLoadModuleUsingPaths(extensions, rest, packageDirectory, packageInfo.versionPaths.paths, loader, !packageDirectoryExists, state);
+                if (fromPaths) {
+                    return fromPaths.value;
+                }
+            }
+        }
+        return loader(extensions, candidate, !nodeModulesDirectoryExists, state);
+    }
+    function tryLoadModuleUsingPaths(extensions, moduleName, baseDirectory, paths, loader, onlyRecordFailures, state) {
+        var matchedPattern = ts.matchPatternOrExact(ts.getOwnKeys(paths), moduleName);
+        if (matchedPattern) {
+            var matchedStar_1 = ts.isString(matchedPattern) ? undefined : ts.matchedText(matchedPattern, moduleName);
+            var matchedPatternText = ts.isString(matchedPattern) ? matchedPattern : ts.patternText(matchedPattern);
+            if (state.traceEnabled) {
+                trace(state.host, ts.Diagnostics.Module_name_0_matched_pattern_1, moduleName, matchedPatternText);
+            }
+            var resolved = ts.forEach(paths[matchedPatternText], function (subst) {
+                var path = matchedStar_1 ? subst.replace("*", matchedStar_1) : subst;
+                var candidate = ts.normalizePath(ts.combinePaths(baseDirectory, path));
+                if (state.traceEnabled) {
+                    trace(state.host, ts.Diagnostics.Trying_substitution_0_candidate_module_location_Colon_1, subst, path);
+                }
+                var extension = ts.tryGetExtensionFromPath(candidate);
+                if (extension !== undefined) {
+                    var path_1 = tryFile(candidate, onlyRecordFailures, state);
+                    if (path_1 !== undefined) {
+                        return noPackageId({ path: path_1, ext: extension });
+                    }
+                }
+                return loader(extensions, candidate, onlyRecordFailures || !ts.directoryProbablyExists(ts.getDirectoryPath(candidate), state.host), state);
+            });
+            return { value: resolved };
+        }
+    }
+    var mangledScopedPackageSeparator = "__";
+    function mangleScopedPackageNameWithTrace(packageName, state) {
+        var mangled = mangleScopedPackageName(packageName);
+        if (state.traceEnabled && mangled !== packageName) {
+            trace(state.host, ts.Diagnostics.Scoped_package_detected_looking_in_0, mangled);
+        }
+        return mangled;
+    }
+    function getTypesPackageName(packageName) {
+        return "@types/" + mangleScopedPackageName(packageName);
+    }
+    ts.getTypesPackageName = getTypesPackageName;
+    function mangleScopedPackageName(packageName) {
+        if (ts.startsWith(packageName, "@")) {
+            var replaceSlash = packageName.replace(ts.directorySeparator, mangledScopedPackageSeparator);
+            if (replaceSlash !== packageName) {
+                return replaceSlash.slice(1);
+            }
+        }
+        return packageName;
+    }
+    ts.mangleScopedPackageName = mangleScopedPackageName;
+    function getPackageNameFromTypesPackageName(mangledName) {
+        var withoutAtTypePrefix = ts.removePrefix(mangledName, "@types/");
+        if (withoutAtTypePrefix !== mangledName) {
+            return unmangleScopedPackageName(withoutAtTypePrefix);
+        }
+        return mangledName;
+    }
+    ts.getPackageNameFromTypesPackageName = getPackageNameFromTypesPackageName;
+    function unmangleScopedPackageName(typesPackageName) {
+        return ts.stringContains(typesPackageName, mangledScopedPackageSeparator) ?
+            "@" + typesPackageName.replace(mangledScopedPackageSeparator, ts.directorySeparator) :
+            typesPackageName;
+    }
+    ts.unmangleScopedPackageName = unmangleScopedPackageName;
+    function tryFindNonRelativeModuleNameInCache(cache, moduleName, containingDirectory, state) {
+        var result = cache && cache.get(containingDirectory);
+        if (result) {
+            if (state.traceEnabled) {
+                trace(state.host, ts.Diagnostics.Resolution_for_module_0_was_found_in_cache_from_location_1, moduleName, containingDirectory);
+            }
+            state.resultFromCache = result;
+            return { value: result.resolvedModule && { path: result.resolvedModule.resolvedFileName, originalPath: result.resolvedModule.originalPath || true, extension: result.resolvedModule.extension, packageId: result.resolvedModule.packageId } };
+        }
+    }
+    function classicNameResolver(moduleName, containingFile, compilerOptions, host, cache, redirectedReference) {
+        var traceEnabled = isTraceEnabled(compilerOptions, host);
+        var failedLookupLocations = [];
+        var state = { compilerOptions: compilerOptions, host: host, traceEnabled: traceEnabled, failedLookupLocations: failedLookupLocations };
+        var containingDirectory = ts.getDirectoryPath(containingFile);
+        var resolved = tryResolve(Extensions.TypeScript) || tryResolve(Extensions.JavaScript);
+        return createResolvedModuleWithFailedLookupLocations(resolved && resolved.value, false, failedLookupLocations, state.resultFromCache);
+        function tryResolve(extensions) {
+            var resolvedUsingSettings = tryLoadModuleUsingOptionalResolutionSettings(extensions, moduleName, containingDirectory, loadModuleFromFileNoPackageId, state);
+            if (resolvedUsingSettings) {
+                return { value: resolvedUsingSettings };
+            }
+            if (!ts.isExternalModuleNameRelative(moduleName)) {
+                var perModuleNameCache_1 = cache && cache.getOrCreateCacheForModuleName(moduleName, redirectedReference);
+                var resolved_3 = ts.forEachAncestorDirectory(containingDirectory, function (directory) {
+                    var resolutionFromCache = tryFindNonRelativeModuleNameInCache(perModuleNameCache_1, moduleName, directory, state);
+                    if (resolutionFromCache) {
+                        return resolutionFromCache;
+                    }
+                    var searchName = ts.normalizePath(ts.combinePaths(directory, moduleName));
+                    return toSearchResult(loadModuleFromFileNoPackageId(extensions, searchName, false, state));
+                });
+                if (resolved_3) {
+                    return resolved_3;
+                }
+                if (extensions === Extensions.TypeScript) {
+                    return loadModuleFromNearestNodeModulesDirectoryTypesScope(moduleName, containingDirectory, state);
+                }
+            }
+            else {
+                var candidate = ts.normalizePath(ts.combinePaths(containingDirectory, moduleName));
+                return toSearchResult(loadModuleFromFileNoPackageId(extensions, candidate, false, state));
+            }
+        }
+    }
+    ts.classicNameResolver = classicNameResolver;
+    function loadModuleFromGlobalCache(moduleName, projectName, compilerOptions, host, globalCache) {
+        var traceEnabled = isTraceEnabled(compilerOptions, host);
+        if (traceEnabled) {
+            trace(host, ts.Diagnostics.Auto_discovery_for_typings_is_enabled_in_project_0_Running_extra_resolution_pass_for_module_1_using_cache_location_2, projectName, moduleName, globalCache);
+        }
+        var failedLookupLocations = [];
+        var state = { compilerOptions: compilerOptions, host: host, traceEnabled: traceEnabled, failedLookupLocations: failedLookupLocations };
+        var resolved = loadModuleFromImmediateNodeModulesDirectory(Extensions.DtsOnly, moduleName, globalCache, state, false);
+        return createResolvedModuleWithFailedLookupLocations(resolved, true, failedLookupLocations, state.resultFromCache);
+    }
+    ts.loadModuleFromGlobalCache = loadModuleFromGlobalCache;
+    function toSearchResult(value) {
+        return value !== undefined ? { value: value } : undefined;
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function getModuleInstanceState(node, visited) {
+        if (node.body && !node.body.parent) {
+            setParentPointers(node, node.body);
+        }
+        return node.body ? getModuleInstanceStateCached(node.body, visited) : 1;
+    }
+    ts.getModuleInstanceState = getModuleInstanceState;
+    function getModuleInstanceStateCached(node, visited) {
+        if (visited === void 0) { visited = ts.createMap(); }
+        var nodeId = "" + ts.getNodeId(node);
+        if (visited.has(nodeId)) {
+            return visited.get(nodeId) || 0;
+        }
+        visited.set(nodeId, undefined);
+        var result = getModuleInstanceStateWorker(node, visited);
+        visited.set(nodeId, result);
+        return result;
+    }
+    function getModuleInstanceStateWorker(node, visited) {
+        switch (node.kind) {
+            case 246:
+            case 247:
+                return 0;
+            case 248:
+                if (ts.isEnumConst(node)) {
+                    return 2;
+                }
+                break;
+            case 254:
+            case 253:
+                if (!(ts.hasModifier(node, 1))) {
+                    return 0;
+                }
+                break;
+            case 260:
+                var exportDeclaration = node;
+                if (!exportDeclaration.moduleSpecifier && exportDeclaration.exportClause && exportDeclaration.exportClause.kind === 261) {
+                    var state = 0;
+                    for (var _i = 0, _a = exportDeclaration.exportClause.elements; _i < _a.length; _i++) {
+                        var specifier = _a[_i];
+                        var specifierState = getModuleInstanceStateForAliasTarget(specifier, visited);
+                        if (specifierState > state) {
+                            state = specifierState;
+                        }
+                        if (state === 1) {
+                            return state;
+                        }
+                    }
+                    return state;
+                }
+                break;
+            case 250: {
+                var state_1 = 0;
+                ts.forEachChild(node, function (n) {
+                    var childState = getModuleInstanceStateCached(n, visited);
+                    switch (childState) {
+                        case 0:
+                            return;
+                        case 2:
+                            state_1 = 2;
+                            return;
+                        case 1:
+                            state_1 = 1;
+                            return true;
+                        default:
+                            ts.Debug.assertNever(childState);
+                    }
+                });
+                return state_1;
+            }
+            case 249:
+                return getModuleInstanceState(node, visited);
+            case 75:
+                if (node.isInJSDocNamespace) {
+                    return 0;
+                }
+        }
+        return 1;
+    }
+    function getModuleInstanceStateForAliasTarget(specifier, visited) {
+        var name = specifier.propertyName || specifier.name;
+        var p = specifier.parent;
+        while (p) {
+            if (ts.isBlock(p) || ts.isModuleBlock(p) || ts.isSourceFile(p)) {
+                var statements = p.statements;
+                var found = void 0;
+                for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
+                    var statement = statements_1[_i];
+                    if (ts.nodeHasName(statement, name)) {
+                        if (!statement.parent) {
+                            setParentPointers(p, statement);
+                        }
+                        var state = getModuleInstanceStateCached(statement, visited);
+                        if (found === undefined || state > found) {
+                            found = state;
+                        }
+                        if (found === 1) {
+                            return found;
+                        }
+                    }
+                }
+                if (found !== undefined) {
+                    return found;
+                }
+            }
+            p = p.parent;
+        }
+        return 1;
+    }
+    function initFlowNode(node) {
+        ts.Debug.attachFlowNodeDebugInfo(node);
+        return node;
+    }
+    var binder = createBinder();
+    function bindSourceFile(file, options) {
+        ts.performance.mark("beforeBind");
+        ts.perfLogger.logStartBindFile("" + file.fileName);
+        binder(file, options);
+        ts.perfLogger.logStopBindFile();
+        ts.performance.mark("afterBind");
+        ts.performance.measure("Bind", "beforeBind", "afterBind");
+    }
+    ts.bindSourceFile = bindSourceFile;
+    function createBinder() {
+        var file;
+        var options;
+        var languageVersion;
+        var parent;
+        var container;
+        var thisParentContainer;
+        var blockScopeContainer;
+        var lastContainer;
+        var delayedTypeAliases;
+        var seenThisKeyword;
+        var currentFlow;
+        var currentBreakTarget;
+        var currentContinueTarget;
+        var currentReturnTarget;
+        var currentTrueTarget;
+        var currentFalseTarget;
+        var currentExceptionTarget;
+        var preSwitchCaseFlow;
+        var activeLabelList;
+        var hasExplicitReturn;
+        var emitFlags;
+        var inStrictMode;
+        var symbolCount = 0;
+        var Symbol;
+        var classifiableNames;
+        var unreachableFlow = { flags: 1 };
+        var reportedUnreachableFlow = { flags: 1 };
+        var subtreeTransformFlags = 0;
+        var skipTransformFlagAggregation;
+        function createDiagnosticForNode(node, message, arg0, arg1, arg2) {
+            return ts.createDiagnosticForNodeInSourceFile(ts.getSourceFileOfNode(node) || file, node, message, arg0, arg1, arg2);
+        }
+        function bindSourceFile(f, opts) {
+            file = f;
+            options = opts;
+            languageVersion = ts.getEmitScriptTarget(options);
+            inStrictMode = bindInStrictMode(file, opts);
+            classifiableNames = ts.createUnderscoreEscapedMap();
+            symbolCount = 0;
+            skipTransformFlagAggregation = file.isDeclarationFile;
+            Symbol = ts.objectAllocator.getSymbolConstructor();
+            ts.Debug.attachFlowNodeDebugInfo(unreachableFlow);
+            ts.Debug.attachFlowNodeDebugInfo(reportedUnreachableFlow);
+            if (!file.locals) {
+                bind(file);
+                file.symbolCount = symbolCount;
+                file.classifiableNames = classifiableNames;
+                delayedBindJSDocTypedefTag();
+            }
+            file = undefined;
+            options = undefined;
+            languageVersion = undefined;
+            parent = undefined;
+            container = undefined;
+            thisParentContainer = undefined;
+            blockScopeContainer = undefined;
+            lastContainer = undefined;
+            delayedTypeAliases = undefined;
+            seenThisKeyword = false;
+            currentFlow = undefined;
+            currentBreakTarget = undefined;
+            currentContinueTarget = undefined;
+            currentReturnTarget = undefined;
+            currentTrueTarget = undefined;
+            currentFalseTarget = undefined;
+            currentExceptionTarget = undefined;
+            activeLabelList = undefined;
+            hasExplicitReturn = false;
+            emitFlags = 0;
+            subtreeTransformFlags = 0;
+        }
+        return bindSourceFile;
+        function bindInStrictMode(file, opts) {
+            if (ts.getStrictOptionValue(opts, "alwaysStrict") && !file.isDeclarationFile) {
+                return true;
+            }
+            else {
+                return !!file.externalModuleIndicator;
+            }
+        }
+        function createSymbol(flags, name) {
+            symbolCount++;
+            return new Symbol(flags, name);
+        }
+        function addDeclarationToSymbol(symbol, node, symbolFlags) {
+            symbol.flags |= symbolFlags;
+            node.symbol = symbol;
+            symbol.declarations = ts.appendIfUnique(symbol.declarations, node);
+            if (symbolFlags & (32 | 384 | 1536 | 3) && !symbol.exports) {
+                symbol.exports = ts.createSymbolTable();
+            }
+            if (symbolFlags & (32 | 64 | 2048 | 4096) && !symbol.members) {
+                symbol.members = ts.createSymbolTable();
+            }
+            if (symbol.constEnumOnlyModule && (symbol.flags & (16 | 32 | 256))) {
+                symbol.constEnumOnlyModule = false;
+            }
+            if (symbolFlags & 111551) {
+                ts.setValueDeclaration(symbol, node);
+            }
+        }
+        function getDeclarationName(node) {
+            if (node.kind === 259) {
+                return node.isExportEquals ? "export=" : "default";
+            }
+            var name = ts.getNameOfDeclaration(node);
+            if (name) {
+                if (ts.isAmbientModule(node)) {
+                    var moduleName = ts.getTextOfIdentifierOrLiteral(name);
+                    return (ts.isGlobalScopeAugmentation(node) ? "__global" : "\"" + moduleName + "\"");
+                }
+                if (name.kind === 154) {
+                    var nameExpression = name.expression;
+                    if (ts.isStringOrNumericLiteralLike(nameExpression)) {
+                        return ts.escapeLeadingUnderscores(nameExpression.text);
+                    }
+                    if (ts.isSignedNumericLiteral(nameExpression)) {
+                        return ts.tokenToString(nameExpression.operator) + nameExpression.operand.text;
+                    }
+                    ts.Debug.assert(ts.isWellKnownSymbolSyntactically(nameExpression));
+                    return ts.getPropertyNameForKnownSymbolName(ts.idText(nameExpression.name));
+                }
+                if (ts.isWellKnownSymbolSyntactically(name)) {
+                    return ts.getPropertyNameForKnownSymbolName(ts.idText(name.name));
+                }
+                if (ts.isPrivateIdentifier(name)) {
+                    var containingClass = ts.getContainingClass(node);
+                    if (!containingClass) {
+                        return undefined;
+                    }
+                    var containingClassSymbol = containingClass.symbol;
+                    return ts.getSymbolNameForPrivateIdentifier(containingClassSymbol, name.escapedText);
+                }
+                return ts.isPropertyNameLiteral(name) ? ts.getEscapedTextOfIdentifierOrLiteral(name) : undefined;
+            }
+            switch (node.kind) {
+                case 162:
+                    return "__constructor";
+                case 170:
+                case 165:
+                case 305:
+                    return "__call";
+                case 171:
+                case 166:
+                    return "__new";
+                case 167:
+                    return "__index";
+                case 260:
+                    return "__export";
+                case 290:
+                    return "export=";
+                case 209:
+                    if (ts.getAssignmentDeclarationKind(node) === 2) {
+                        return "export=";
+                    }
+                    ts.Debug.fail("Unknown binary declaration kind");
+                    break;
+                case 300:
+                    return (ts.isJSDocConstructSignature(node) ? "__new" : "__call");
+                case 156:
+                    ts.Debug.assert(node.parent.kind === 300, "Impossible parameter parent kind", function () { return "parent is: " + (ts.SyntaxKind ? ts.SyntaxKind[node.parent.kind] : node.parent.kind) + ", expected JSDocFunctionType"; });
+                    var functionType = node.parent;
+                    var index = functionType.parameters.indexOf(node);
+                    return "arg" + index;
+            }
+        }
+        function getDisplayName(node) {
+            return ts.isNamedDeclaration(node) ? ts.declarationNameToString(node.name) : ts.unescapeLeadingUnderscores(ts.Debug.checkDefined(getDeclarationName(node)));
+        }
+        function declareSymbol(symbolTable, parent, node, includes, excludes, isReplaceableByMethod) {
+            ts.Debug.assert(!ts.hasDynamicName(node));
+            var isDefaultExport = ts.hasModifier(node, 512) || ts.isExportSpecifier(node) && node.name.escapedText === "default";
+            var name = isDefaultExport && parent ? "default" : getDeclarationName(node);
+            var symbol;
+            if (name === undefined) {
+                symbol = createSymbol(0, "__missing");
+            }
+            else {
+                symbol = symbolTable.get(name);
+                if (includes & 2885600) {
+                    classifiableNames.set(name, true);
+                }
+                if (!symbol) {
+                    symbolTable.set(name, symbol = createSymbol(0, name));
+                    if (isReplaceableByMethod)
+                        symbol.isReplaceableByMethod = true;
+                }
+                else if (isReplaceableByMethod && !symbol.isReplaceableByMethod) {
+                    return symbol;
+                }
+                else if (symbol.flags & excludes) {
+                    if (symbol.isReplaceableByMethod) {
+                        symbolTable.set(name, symbol = createSymbol(0, name));
+                    }
+                    else if (!(includes & 3 && symbol.flags & 67108864)) {
+                        if (ts.isNamedDeclaration(node)) {
+                            node.name.parent = node;
+                        }
+                        var message_1 = symbol.flags & 2
+                            ? ts.Diagnostics.Cannot_redeclare_block_scoped_variable_0
+                            : ts.Diagnostics.Duplicate_identifier_0;
+                        var messageNeedsName_1 = true;
+                        if (symbol.flags & 384 || includes & 384) {
+                            message_1 = ts.Diagnostics.Enum_declarations_can_only_merge_with_namespace_or_other_enum_declarations;
+                            messageNeedsName_1 = false;
+                        }
+                        var multipleDefaultExports_1 = false;
+                        if (ts.length(symbol.declarations)) {
+                            if (isDefaultExport) {
+                                message_1 = ts.Diagnostics.A_module_cannot_have_multiple_default_exports;
+                                messageNeedsName_1 = false;
+                                multipleDefaultExports_1 = true;
+                            }
+                            else {
+                                if (symbol.declarations && symbol.declarations.length &&
+                                    (node.kind === 259 && !node.isExportEquals)) {
+                                    message_1 = ts.Diagnostics.A_module_cannot_have_multiple_default_exports;
+                                    messageNeedsName_1 = false;
+                                    multipleDefaultExports_1 = true;
+                                }
+                            }
+                        }
+                        var relatedInformation_1 = [];
+                        if (ts.isTypeAliasDeclaration(node) && ts.nodeIsMissing(node.type) && ts.hasModifier(node, 1) && symbol.flags & (2097152 | 788968 | 1920)) {
+                            relatedInformation_1.push(createDiagnosticForNode(node, ts.Diagnostics.Did_you_mean_0, "export type { " + ts.unescapeLeadingUnderscores(node.name.escapedText) + " }"));
+                        }
+                        var declarationName_1 = ts.getNameOfDeclaration(node) || node;
+                        ts.forEach(symbol.declarations, function (declaration, index) {
+                            var decl = ts.getNameOfDeclaration(declaration) || declaration;
+                            var diag = createDiagnosticForNode(decl, message_1, messageNeedsName_1 ? getDisplayName(declaration) : undefined);
+                            file.bindDiagnostics.push(multipleDefaultExports_1 ? ts.addRelatedInfo(diag, createDiagnosticForNode(declarationName_1, index === 0 ? ts.Diagnostics.Another_export_default_is_here : ts.Diagnostics.and_here)) : diag);
+                            if (multipleDefaultExports_1) {
+                                relatedInformation_1.push(createDiagnosticForNode(decl, ts.Diagnostics.The_first_export_default_is_here));
+                            }
+                        });
+                        var diag = createDiagnosticForNode(declarationName_1, message_1, messageNeedsName_1 ? getDisplayName(node) : undefined);
+                        file.bindDiagnostics.push(ts.addRelatedInfo.apply(void 0, __spreadArrays([diag], relatedInformation_1)));
+                        symbol = createSymbol(0, name);
+                    }
+                }
+            }
+            addDeclarationToSymbol(symbol, node, includes);
+            if (symbol.parent) {
+                ts.Debug.assert(symbol.parent === parent, "Existing symbol parent should match new one");
+            }
+            else {
+                symbol.parent = parent;
+            }
+            return symbol;
+        }
+        function declareModuleMember(node, symbolFlags, symbolExcludes) {
+            var hasExportModifier = ts.getCombinedModifierFlags(node) & 1;
+            if (symbolFlags & 2097152) {
+                if (node.kind === 263 || (node.kind === 253 && hasExportModifier)) {
+                    return declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes);
+                }
+                else {
+                    return declareSymbol(container.locals, undefined, node, symbolFlags, symbolExcludes);
+                }
+            }
+            else {
+                if (ts.isJSDocTypeAlias(node))
+                    ts.Debug.assert(ts.isInJSFile(node));
+                if ((!ts.isAmbientModule(node) && (hasExportModifier || container.flags & 64)) || ts.isJSDocTypeAlias(node)) {
+                    if (!container.locals || (ts.hasModifier(node, 512) && !getDeclarationName(node))) {
+                        return declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes);
+                    }
+                    var exportKind = symbolFlags & 111551 ? 1048576 : 0;
+                    var local = declareSymbol(container.locals, undefined, node, exportKind, symbolExcludes);
+                    local.exportSymbol = declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes);
+                    node.localSymbol = local;
+                    return local;
+                }
+                else {
+                    return declareSymbol(container.locals, undefined, node, symbolFlags, symbolExcludes);
+                }
+            }
+        }
+        function bindContainer(node, containerFlags) {
+            var saveContainer = container;
+            var saveThisParentContainer = thisParentContainer;
+            var savedBlockScopeContainer = blockScopeContainer;
+            if (containerFlags & 1) {
+                if (node.kind !== 202) {
+                    thisParentContainer = container;
+                }
+                container = blockScopeContainer = node;
+                if (containerFlags & 32) {
+                    container.locals = ts.createSymbolTable();
+                }
+                addToContainerChain(container);
+            }
+            else if (containerFlags & 2) {
+                blockScopeContainer = node;
+                blockScopeContainer.locals = undefined;
+            }
+            if (containerFlags & 4) {
+                var saveCurrentFlow = currentFlow;
+                var saveBreakTarget = currentBreakTarget;
+                var saveContinueTarget = currentContinueTarget;
+                var saveReturnTarget = currentReturnTarget;
+                var saveExceptionTarget = currentExceptionTarget;
+                var saveActiveLabelList = activeLabelList;
+                var saveHasExplicitReturn = hasExplicitReturn;
+                var isIIFE = containerFlags & 16 && !ts.hasModifier(node, 256) &&
+                    !node.asteriskToken && !!ts.getImmediatelyInvokedFunctionExpression(node);
+                if (!isIIFE) {
+                    currentFlow = initFlowNode({ flags: 2 });
+                    if (containerFlags & (16 | 128)) {
+                        currentFlow.node = node;
+                    }
+                }
+                currentReturnTarget = isIIFE || node.kind === 162 ? createBranchLabel() : undefined;
+                currentExceptionTarget = undefined;
+                currentBreakTarget = undefined;
+                currentContinueTarget = undefined;
+                activeLabelList = undefined;
+                hasExplicitReturn = false;
+                bindChildren(node);
+                node.flags &= ~2816;
+                if (!(currentFlow.flags & 1) && containerFlags & 8 && ts.nodeIsPresent(node.body)) {
+                    node.flags |= 256;
+                    if (hasExplicitReturn)
+                        node.flags |= 512;
+                    node.endFlowNode = currentFlow;
+                }
+                if (node.kind === 290) {
+                    node.flags |= emitFlags;
+                }
+                if (currentReturnTarget) {
+                    addAntecedent(currentReturnTarget, currentFlow);
+                    currentFlow = finishFlowLabel(currentReturnTarget);
+                    if (node.kind === 162) {
+                        node.returnFlowNode = currentFlow;
+                    }
+                }
+                if (!isIIFE) {
+                    currentFlow = saveCurrentFlow;
+                }
+                currentBreakTarget = saveBreakTarget;
+                currentContinueTarget = saveContinueTarget;
+                currentReturnTarget = saveReturnTarget;
+                currentExceptionTarget = saveExceptionTarget;
+                activeLabelList = saveActiveLabelList;
+                hasExplicitReturn = saveHasExplicitReturn;
+            }
+            else if (containerFlags & 64) {
+                seenThisKeyword = false;
+                bindChildren(node);
+                node.flags = seenThisKeyword ? node.flags | 128 : node.flags & ~128;
+            }
+            else {
+                bindChildren(node);
+            }
+            container = saveContainer;
+            thisParentContainer = saveThisParentContainer;
+            blockScopeContainer = savedBlockScopeContainer;
+        }
+        function bindChildren(node) {
+            if (skipTransformFlagAggregation) {
+                bindChildrenWorker(node);
+            }
+            else if (node.transformFlags & 536870912) {
+                skipTransformFlagAggregation = true;
+                bindChildrenWorker(node);
+                skipTransformFlagAggregation = false;
+                subtreeTransformFlags |= node.transformFlags & ~getTransformFlagsSubtreeExclusions(node.kind);
+            }
+            else {
+                var savedSubtreeTransformFlags = subtreeTransformFlags;
+                subtreeTransformFlags = 0;
+                bindChildrenWorker(node);
+                subtreeTransformFlags = savedSubtreeTransformFlags | computeTransformFlagsForNode(node, subtreeTransformFlags);
+            }
+        }
+        function bindEachFunctionsFirst(nodes) {
+            bindEach(nodes, function (n) { return n.kind === 244 ? bind(n) : undefined; });
+            bindEach(nodes, function (n) { return n.kind !== 244 ? bind(n) : undefined; });
+        }
+        function bindEach(nodes, bindFunction) {
+            if (bindFunction === void 0) { bindFunction = bind; }
+            if (nodes === undefined) {
+                return;
+            }
+            if (skipTransformFlagAggregation) {
+                ts.forEach(nodes, bindFunction);
+            }
+            else {
+                var savedSubtreeTransformFlags = subtreeTransformFlags;
+                subtreeTransformFlags = 0;
+                var nodeArrayFlags = 0;
+                for (var _i = 0, nodes_2 = nodes; _i < nodes_2.length; _i++) {
+                    var node = nodes_2[_i];
+                    bindFunction(node);
+                    nodeArrayFlags |= node.transformFlags & ~536870912;
+                }
+                nodes.transformFlags = nodeArrayFlags | 536870912;
+                subtreeTransformFlags |= savedSubtreeTransformFlags;
+            }
+        }
+        function bindEachChild(node) {
+            ts.forEachChild(node, bind, bindEach);
+        }
+        function bindChildrenWorker(node) {
+            if (checkUnreachable(node)) {
+                bindEachChild(node);
+                bindJSDoc(node);
+                return;
+            }
+            if (node.kind >= 225 && node.kind <= 241 && !options.allowUnreachableCode) {
+                node.flowNode = currentFlow;
+            }
+            switch (node.kind) {
+                case 229:
+                    bindWhileStatement(node);
+                    break;
+                case 228:
+                    bindDoStatement(node);
+                    break;
+                case 230:
+                    bindForStatement(node);
+                    break;
+                case 231:
+                case 232:
+                    bindForInOrForOfStatement(node);
+                    break;
+                case 227:
+                    bindIfStatement(node);
+                    break;
+                case 235:
+                case 239:
+                    bindReturnOrThrow(node);
+                    break;
+                case 234:
+                case 233:
+                    bindBreakOrContinueStatement(node);
+                    break;
+                case 240:
+                    bindTryStatement(node);
+                    break;
+                case 237:
+                    bindSwitchStatement(node);
+                    break;
+                case 251:
+                    bindCaseBlock(node);
+                    break;
+                case 277:
+                    bindCaseClause(node);
+                    break;
+                case 226:
+                    bindExpressionStatement(node);
+                    break;
+                case 238:
+                    bindLabeledStatement(node);
+                    break;
+                case 207:
+                    bindPrefixUnaryExpressionFlow(node);
+                    break;
+                case 208:
+                    bindPostfixUnaryExpressionFlow(node);
+                    break;
+                case 209:
+                    bindBinaryExpressionFlow(node);
+                    break;
+                case 203:
+                    bindDeleteExpressionFlow(node);
+                    break;
+                case 210:
+                    bindConditionalExpressionFlow(node);
+                    break;
+                case 242:
+                    bindVariableDeclarationFlow(node);
+                    break;
+                case 194:
+                case 195:
+                    bindAccessExpressionFlow(node);
+                    break;
+                case 196:
+                    bindCallExpressionFlow(node);
+                    break;
+                case 218:
+                    bindNonNullExpressionFlow(node);
+                    break;
+                case 322:
+                case 315:
+                case 316:
+                    bindJSDocTypeAlias(node);
+                    break;
+                case 290: {
+                    bindEachFunctionsFirst(node.statements);
+                    bind(node.endOfFileToken);
+                    break;
+                }
+                case 223:
+                case 250:
+                    bindEachFunctionsFirst(node.statements);
+                    break;
+                default:
+                    bindEachChild(node);
+                    break;
+            }
+            bindJSDoc(node);
+        }
+        function isNarrowingExpression(expr) {
+            switch (expr.kind) {
+                case 75:
+                case 104:
+                case 194:
+                case 195:
+                    return containsNarrowableReference(expr);
+                case 196:
+                    return hasNarrowableArgument(expr);
+                case 200:
+                    return isNarrowingExpression(expr.expression);
+                case 209:
+                    return isNarrowingBinaryExpression(expr);
+                case 207:
+                    return expr.operator === 53 && isNarrowingExpression(expr.operand);
+                case 204:
+                    return isNarrowingExpression(expr.expression);
+            }
+            return false;
+        }
+        function isNarrowableReference(expr) {
+            return expr.kind === 75 || expr.kind === 104 || expr.kind === 102 ||
+                (ts.isPropertyAccessExpression(expr) || ts.isNonNullExpression(expr) || ts.isParenthesizedExpression(expr)) && isNarrowableReference(expr.expression) ||
+                ts.isElementAccessExpression(expr) && ts.isStringOrNumericLiteralLike(expr.argumentExpression) && isNarrowableReference(expr.expression);
+        }
+        function containsNarrowableReference(expr) {
+            return isNarrowableReference(expr) || ts.isOptionalChain(expr) && containsNarrowableReference(expr.expression);
+        }
+        function hasNarrowableArgument(expr) {
+            if (expr.arguments) {
+                for (var _i = 0, _a = expr.arguments; _i < _a.length; _i++) {
+                    var argument = _a[_i];
+                    if (containsNarrowableReference(argument)) {
+                        return true;
+                    }
+                }
+            }
+            if (expr.expression.kind === 194 &&
+                containsNarrowableReference(expr.expression.expression)) {
+                return true;
+            }
+            return false;
+        }
+        function isNarrowingTypeofOperands(expr1, expr2) {
+            return ts.isTypeOfExpression(expr1) && isNarrowableOperand(expr1.expression) && ts.isStringLiteralLike(expr2);
+        }
+        function isNarrowableInOperands(left, right) {
+            return ts.isStringLiteralLike(left) && isNarrowingExpression(right);
+        }
+        function isNarrowingBinaryExpression(expr) {
+            switch (expr.operatorToken.kind) {
+                case 62:
+                    return containsNarrowableReference(expr.left);
+                case 34:
+                case 35:
+                case 36:
+                case 37:
+                    return isNarrowableOperand(expr.left) || isNarrowableOperand(expr.right) ||
+                        isNarrowingTypeofOperands(expr.right, expr.left) || isNarrowingTypeofOperands(expr.left, expr.right);
+                case 98:
+                    return isNarrowableOperand(expr.left);
+                case 97:
+                    return isNarrowableInOperands(expr.left, expr.right);
+                case 27:
+                    return isNarrowingExpression(expr.right);
+            }
+            return false;
+        }
+        function isNarrowableOperand(expr) {
+            switch (expr.kind) {
+                case 200:
+                    return isNarrowableOperand(expr.expression);
+                case 209:
+                    switch (expr.operatorToken.kind) {
+                        case 62:
+                            return isNarrowableOperand(expr.left);
+                        case 27:
+                            return isNarrowableOperand(expr.right);
+                    }
+            }
+            return containsNarrowableReference(expr);
+        }
+        function createBranchLabel() {
+            return initFlowNode({ flags: 4, antecedents: undefined });
+        }
+        function createLoopLabel() {
+            return initFlowNode({ flags: 8, antecedents: undefined });
+        }
+        function createReduceLabel(target, antecedents, antecedent) {
+            return initFlowNode({ flags: 1024, target: target, antecedents: antecedents, antecedent: antecedent });
+        }
+        function setFlowNodeReferenced(flow) {
+            flow.flags |= flow.flags & 2048 ? 4096 : 2048;
+        }
+        function addAntecedent(label, antecedent) {
+            if (!(antecedent.flags & 1) && !ts.contains(label.antecedents, antecedent)) {
+                (label.antecedents || (label.antecedents = [])).push(antecedent);
+                setFlowNodeReferenced(antecedent);
+            }
+        }
+        function createFlowCondition(flags, antecedent, expression) {
+            if (antecedent.flags & 1) {
+                return antecedent;
+            }
+            if (!expression) {
+                return flags & 32 ? antecedent : unreachableFlow;
+            }
+            if ((expression.kind === 106 && flags & 64 ||
+                expression.kind === 91 && flags & 32) &&
+                !ts.isExpressionOfOptionalChainRoot(expression) && !ts.isNullishCoalesce(expression.parent)) {
+                return unreachableFlow;
+            }
+            if (!isNarrowingExpression(expression)) {
+                return antecedent;
+            }
+            setFlowNodeReferenced(antecedent);
+            return initFlowNode({ flags: flags, antecedent: antecedent, node: expression });
+        }
+        function createFlowSwitchClause(antecedent, switchStatement, clauseStart, clauseEnd) {
+            setFlowNodeReferenced(antecedent);
+            return initFlowNode({ flags: 128, antecedent: antecedent, switchStatement: switchStatement, clauseStart: clauseStart, clauseEnd: clauseEnd });
+        }
+        function createFlowMutation(flags, antecedent, node) {
+            setFlowNodeReferenced(antecedent);
+            var result = initFlowNode({ flags: flags, antecedent: antecedent, node: node });
+            if (currentExceptionTarget) {
+                addAntecedent(currentExceptionTarget, result);
+            }
+            return result;
+        }
+        function createFlowCall(antecedent, node) {
+            setFlowNodeReferenced(antecedent);
+            return initFlowNode({ flags: 512, antecedent: antecedent, node: node });
+        }
+        function finishFlowLabel(flow) {
+            var antecedents = flow.antecedents;
+            if (!antecedents) {
+                return unreachableFlow;
+            }
+            if (antecedents.length === 1) {
+                return antecedents[0];
+            }
+            return flow;
+        }
+        function isStatementCondition(node) {
+            var parent = node.parent;
+            switch (parent.kind) {
+                case 227:
+                case 229:
+                case 228:
+                    return parent.expression === node;
+                case 230:
+                case 210:
+                    return parent.condition === node;
+            }
+            return false;
+        }
+        function isLogicalExpression(node) {
+            while (true) {
+                if (node.kind === 200) {
+                    node = node.expression;
+                }
+                else if (node.kind === 207 && node.operator === 53) {
+                    node = node.operand;
+                }
+                else {
+                    return node.kind === 209 && (node.operatorToken.kind === 55 ||
+                        node.operatorToken.kind === 56 ||
+                        node.operatorToken.kind === 60);
+                }
+            }
+        }
+        function isTopLevelLogicalExpression(node) {
+            while (ts.isParenthesizedExpression(node.parent) ||
+                ts.isPrefixUnaryExpression(node.parent) && node.parent.operator === 53) {
+                node = node.parent;
+            }
+            return !isStatementCondition(node) &&
+                !isLogicalExpression(node.parent) &&
+                !(ts.isOptionalChain(node.parent) && node.parent.expression === node);
+        }
+        function doWithConditionalBranches(action, value, trueTarget, falseTarget) {
+            var savedTrueTarget = currentTrueTarget;
+            var savedFalseTarget = currentFalseTarget;
+            currentTrueTarget = trueTarget;
+            currentFalseTarget = falseTarget;
+            action(value);
+            currentTrueTarget = savedTrueTarget;
+            currentFalseTarget = savedFalseTarget;
+        }
+        function bindCondition(node, trueTarget, falseTarget) {
+            doWithConditionalBranches(bind, node, trueTarget, falseTarget);
+            if (!node || !isLogicalExpression(node) && !(ts.isOptionalChain(node) && ts.isOutermostOptionalChain(node))) {
+                addAntecedent(trueTarget, createFlowCondition(32, currentFlow, node));
+                addAntecedent(falseTarget, createFlowCondition(64, currentFlow, node));
+            }
+        }
+        function bindIterativeStatement(node, breakTarget, continueTarget) {
+            var saveBreakTarget = currentBreakTarget;
+            var saveContinueTarget = currentContinueTarget;
+            currentBreakTarget = breakTarget;
+            currentContinueTarget = continueTarget;
+            bind(node);
+            currentBreakTarget = saveBreakTarget;
+            currentContinueTarget = saveContinueTarget;
+        }
+        function setContinueTarget(node, target) {
+            var label = activeLabelList;
+            while (label && node.parent.kind === 238) {
+                label.continueTarget = target;
+                label = label.next;
+                node = node.parent;
+            }
+            return target;
+        }
+        function bindWhileStatement(node) {
+            var preWhileLabel = setContinueTarget(node, createLoopLabel());
+            var preBodyLabel = createBranchLabel();
+            var postWhileLabel = createBranchLabel();
+            addAntecedent(preWhileLabel, currentFlow);
+            currentFlow = preWhileLabel;
+            bindCondition(node.expression, preBodyLabel, postWhileLabel);
+            currentFlow = finishFlowLabel(preBodyLabel);
+            bindIterativeStatement(node.statement, postWhileLabel, preWhileLabel);
+            addAntecedent(preWhileLabel, currentFlow);
+            currentFlow = finishFlowLabel(postWhileLabel);
+        }
+        function bindDoStatement(node) {
+            var preDoLabel = createLoopLabel();
+            var preConditionLabel = setContinueTarget(node, createBranchLabel());
+            var postDoLabel = createBranchLabel();
+            addAntecedent(preDoLabel, currentFlow);
+            currentFlow = preDoLabel;
+            bindIterativeStatement(node.statement, postDoLabel, preConditionLabel);
+            addAntecedent(preConditionLabel, currentFlow);
+            currentFlow = finishFlowLabel(preConditionLabel);
+            bindCondition(node.expression, preDoLabel, postDoLabel);
+            currentFlow = finishFlowLabel(postDoLabel);
+        }
+        function bindForStatement(node) {
+            var preLoopLabel = setContinueTarget(node, createLoopLabel());
+            var preBodyLabel = createBranchLabel();
+            var postLoopLabel = createBranchLabel();
+            bind(node.initializer);
+            addAntecedent(preLoopLabel, currentFlow);
+            currentFlow = preLoopLabel;
+            bindCondition(node.condition, preBodyLabel, postLoopLabel);
+            currentFlow = finishFlowLabel(preBodyLabel);
+            bindIterativeStatement(node.statement, postLoopLabel, preLoopLabel);
+            bind(node.incrementor);
+            addAntecedent(preLoopLabel, currentFlow);
+            currentFlow = finishFlowLabel(postLoopLabel);
+        }
+        function bindForInOrForOfStatement(node) {
+            var preLoopLabel = setContinueTarget(node, createLoopLabel());
+            var postLoopLabel = createBranchLabel();
+            bind(node.expression);
+            addAntecedent(preLoopLabel, currentFlow);
+            currentFlow = preLoopLabel;
+            if (node.kind === 232) {
+                bind(node.awaitModifier);
+            }
+            addAntecedent(postLoopLabel, currentFlow);
+            bind(node.initializer);
+            if (node.initializer.kind !== 243) {
+                bindAssignmentTargetFlow(node.initializer);
+            }
+            bindIterativeStatement(node.statement, postLoopLabel, preLoopLabel);
+            addAntecedent(preLoopLabel, currentFlow);
+            currentFlow = finishFlowLabel(postLoopLabel);
+        }
+        function bindIfStatement(node) {
+            var thenLabel = createBranchLabel();
+            var elseLabel = createBranchLabel();
+            var postIfLabel = createBranchLabel();
+            bindCondition(node.expression, thenLabel, elseLabel);
+            currentFlow = finishFlowLabel(thenLabel);
+            bind(node.thenStatement);
+            addAntecedent(postIfLabel, currentFlow);
+            currentFlow = finishFlowLabel(elseLabel);
+            bind(node.elseStatement);
+            addAntecedent(postIfLabel, currentFlow);
+            currentFlow = finishFlowLabel(postIfLabel);
+        }
+        function bindReturnOrThrow(node) {
+            bind(node.expression);
+            if (node.kind === 235) {
+                hasExplicitReturn = true;
+                if (currentReturnTarget) {
+                    addAntecedent(currentReturnTarget, currentFlow);
+                }
+            }
+            currentFlow = unreachableFlow;
+        }
+        function findActiveLabel(name) {
+            for (var label = activeLabelList; label; label = label.next) {
+                if (label.name === name) {
+                    return label;
+                }
+            }
+            return undefined;
+        }
+        function bindBreakOrContinueFlow(node, breakTarget, continueTarget) {
+            var flowLabel = node.kind === 234 ? breakTarget : continueTarget;
+            if (flowLabel) {
+                addAntecedent(flowLabel, currentFlow);
+                currentFlow = unreachableFlow;
+            }
+        }
+        function bindBreakOrContinueStatement(node) {
+            bind(node.label);
+            if (node.label) {
+                var activeLabel = findActiveLabel(node.label.escapedText);
+                if (activeLabel) {
+                    activeLabel.referenced = true;
+                    bindBreakOrContinueFlow(node, activeLabel.breakTarget, activeLabel.continueTarget);
+                }
+            }
+            else {
+                bindBreakOrContinueFlow(node, currentBreakTarget, currentContinueTarget);
+            }
+        }
+        function bindTryStatement(node) {
+            var saveReturnTarget = currentReturnTarget;
+            var saveExceptionTarget = currentExceptionTarget;
+            var normalExitLabel = createBranchLabel();
+            var returnLabel = createBranchLabel();
+            var exceptionLabel = createBranchLabel();
+            if (node.finallyBlock) {
+                currentReturnTarget = returnLabel;
+            }
+            addAntecedent(exceptionLabel, currentFlow);
+            currentExceptionTarget = exceptionLabel;
+            bind(node.tryBlock);
+            addAntecedent(normalExitLabel, currentFlow);
+            if (node.catchClause) {
+                currentFlow = finishFlowLabel(exceptionLabel);
+                exceptionLabel = createBranchLabel();
+                addAntecedent(exceptionLabel, currentFlow);
+                currentExceptionTarget = exceptionLabel;
+                bind(node.catchClause);
+                addAntecedent(normalExitLabel, currentFlow);
+            }
+            currentReturnTarget = saveReturnTarget;
+            currentExceptionTarget = saveExceptionTarget;
+            if (node.finallyBlock) {
+                var finallyLabel = createBranchLabel();
+                finallyLabel.antecedents = ts.concatenate(ts.concatenate(normalExitLabel.antecedents, exceptionLabel.antecedents), returnLabel.antecedents);
+                currentFlow = finallyLabel;
+                bind(node.finallyBlock);
+                if (currentFlow.flags & 1) {
+                    currentFlow = unreachableFlow;
+                }
+                else {
+                    if (currentReturnTarget && returnLabel.antecedents) {
+                        addAntecedent(currentReturnTarget, createReduceLabel(finallyLabel, returnLabel.antecedents, currentFlow));
+                    }
+                    currentFlow = normalExitLabel.antecedents ? createReduceLabel(finallyLabel, normalExitLabel.antecedents, currentFlow) : unreachableFlow;
+                }
+            }
+            else {
+                currentFlow = finishFlowLabel(normalExitLabel);
+            }
+        }
+        function bindSwitchStatement(node) {
+            var postSwitchLabel = createBranchLabel();
+            bind(node.expression);
+            var saveBreakTarget = currentBreakTarget;
+            var savePreSwitchCaseFlow = preSwitchCaseFlow;
+            currentBreakTarget = postSwitchLabel;
+            preSwitchCaseFlow = currentFlow;
+            bind(node.caseBlock);
+            addAntecedent(postSwitchLabel, currentFlow);
+            var hasDefault = ts.forEach(node.caseBlock.clauses, function (c) { return c.kind === 278; });
+            node.possiblyExhaustive = !hasDefault && !postSwitchLabel.antecedents;
+            if (!hasDefault) {
+                addAntecedent(postSwitchLabel, createFlowSwitchClause(preSwitchCaseFlow, node, 0, 0));
+            }
+            currentBreakTarget = saveBreakTarget;
+            preSwitchCaseFlow = savePreSwitchCaseFlow;
+            currentFlow = finishFlowLabel(postSwitchLabel);
+        }
+        function bindCaseBlock(node) {
+            var savedSubtreeTransformFlags = subtreeTransformFlags;
+            subtreeTransformFlags = 0;
+            var clauses = node.clauses;
+            var isNarrowingSwitch = isNarrowingExpression(node.parent.expression);
+            var fallthroughFlow = unreachableFlow;
+            for (var i = 0; i < clauses.length; i++) {
+                var clauseStart = i;
+                while (!clauses[i].statements.length && i + 1 < clauses.length) {
+                    bind(clauses[i]);
+                    i++;
+                }
+                var preCaseLabel = createBranchLabel();
+                addAntecedent(preCaseLabel, isNarrowingSwitch ? createFlowSwitchClause(preSwitchCaseFlow, node.parent, clauseStart, i + 1) : preSwitchCaseFlow);
+                addAntecedent(preCaseLabel, fallthroughFlow);
+                currentFlow = finishFlowLabel(preCaseLabel);
+                var clause = clauses[i];
+                bind(clause);
+                fallthroughFlow = currentFlow;
+                if (!(currentFlow.flags & 1) && i !== clauses.length - 1 && options.noFallthroughCasesInSwitch) {
+                    clause.fallthroughFlowNode = currentFlow;
+                }
+            }
+            clauses.transformFlags = subtreeTransformFlags | 536870912;
+            subtreeTransformFlags |= savedSubtreeTransformFlags;
+        }
+        function bindCaseClause(node) {
+            var saveCurrentFlow = currentFlow;
+            currentFlow = preSwitchCaseFlow;
+            bind(node.expression);
+            currentFlow = saveCurrentFlow;
+            bindEach(node.statements);
+        }
+        function bindExpressionStatement(node) {
+            bind(node.expression);
+            if (node.expression.kind === 196) {
+                var call = node.expression;
+                if (ts.isDottedName(call.expression)) {
+                    currentFlow = createFlowCall(currentFlow, call);
+                }
+            }
+        }
+        function bindLabeledStatement(node) {
+            var postStatementLabel = createBranchLabel();
+            activeLabelList = {
+                next: activeLabelList,
+                name: node.label.escapedText,
+                breakTarget: postStatementLabel,
+                continueTarget: undefined,
+                referenced: false
+            };
+            bind(node.label);
+            bind(node.statement);
+            if (!activeLabelList.referenced && !options.allowUnusedLabels) {
+                errorOrSuggestionOnNode(ts.unusedLabelIsError(options), node.label, ts.Diagnostics.Unused_label);
+            }
+            activeLabelList = activeLabelList.next;
+            addAntecedent(postStatementLabel, currentFlow);
+            currentFlow = finishFlowLabel(postStatementLabel);
+        }
+        function bindDestructuringTargetFlow(node) {
+            if (node.kind === 209 && node.operatorToken.kind === 62) {
+                bindAssignmentTargetFlow(node.left);
+            }
+            else {
+                bindAssignmentTargetFlow(node);
+            }
+        }
+        function bindAssignmentTargetFlow(node) {
+            if (isNarrowableReference(node)) {
+                currentFlow = createFlowMutation(16, currentFlow, node);
+            }
+            else if (node.kind === 192) {
+                for (var _i = 0, _a = node.elements; _i < _a.length; _i++) {
+                    var e = _a[_i];
+                    if (e.kind === 213) {
+                        bindAssignmentTargetFlow(e.expression);
+                    }
+                    else {
+                        bindDestructuringTargetFlow(e);
+                    }
+                }
+            }
+            else if (node.kind === 193) {
+                for (var _b = 0, _c = node.properties; _b < _c.length; _b++) {
+                    var p = _c[_b];
+                    if (p.kind === 281) {
+                        bindDestructuringTargetFlow(p.initializer);
+                    }
+                    else if (p.kind === 282) {
+                        bindAssignmentTargetFlow(p.name);
+                    }
+                    else if (p.kind === 283) {
+                        bindAssignmentTargetFlow(p.expression);
+                    }
+                }
+            }
+        }
+        function bindLogicalExpression(node, trueTarget, falseTarget) {
+            var preRightLabel = createBranchLabel();
+            if (node.operatorToken.kind === 55) {
+                bindCondition(node.left, preRightLabel, falseTarget);
+            }
+            else {
+                bindCondition(node.left, trueTarget, preRightLabel);
+            }
+            currentFlow = finishFlowLabel(preRightLabel);
+            bind(node.operatorToken);
+            bindCondition(node.right, trueTarget, falseTarget);
+        }
+        function bindPrefixUnaryExpressionFlow(node) {
+            if (node.operator === 53) {
+                var saveTrueTarget = currentTrueTarget;
+                currentTrueTarget = currentFalseTarget;
+                currentFalseTarget = saveTrueTarget;
+                bindEachChild(node);
+                currentFalseTarget = currentTrueTarget;
+                currentTrueTarget = saveTrueTarget;
+            }
+            else {
+                bindEachChild(node);
+                if (node.operator === 45 || node.operator === 46) {
+                    bindAssignmentTargetFlow(node.operand);
+                }
+            }
+        }
+        function bindPostfixUnaryExpressionFlow(node) {
+            bindEachChild(node);
+            if (node.operator === 45 || node.operator === 46) {
+                bindAssignmentTargetFlow(node.operand);
+            }
+        }
+        function bindBinaryExpressionFlow(node) {
+            var workStacks = {
+                expr: [node],
+                state: [1],
+                inStrictMode: [undefined],
+                parent: [undefined],
+                subtreeFlags: [undefined]
+            };
+            var stackIndex = 0;
+            while (stackIndex >= 0) {
+                node = workStacks.expr[stackIndex];
+                switch (workStacks.state[stackIndex]) {
+                    case 0: {
+                        node.parent = parent;
+                        var saveInStrictMode = inStrictMode;
+                        bindWorker(node);
+                        var saveParent = parent;
+                        parent = node;
+                        var subtreeFlagsState = void 0;
+                        if (skipTransformFlagAggregation) {
+                        }
+                        else if (node.transformFlags & 536870912) {
+                            skipTransformFlagAggregation = true;
+                            subtreeFlagsState = -1;
+                        }
+                        else {
+                            var savedSubtreeTransformFlags = subtreeTransformFlags;
+                            subtreeTransformFlags = 0;
+                            subtreeFlagsState = savedSubtreeTransformFlags;
+                        }
+                        advanceState(1, saveInStrictMode, saveParent, subtreeFlagsState);
+                        break;
+                    }
+                    case 1: {
+                        var operator = node.operatorToken.kind;
+                        if (operator === 55 || operator === 56 || operator === 60) {
+                            if (isTopLevelLogicalExpression(node)) {
+                                var postExpressionLabel = createBranchLabel();
+                                bindLogicalExpression(node, postExpressionLabel, postExpressionLabel);
+                                currentFlow = finishFlowLabel(postExpressionLabel);
+                            }
+                            else {
+                                bindLogicalExpression(node, currentTrueTarget, currentFalseTarget);
+                            }
+                            completeNode();
+                        }
+                        else {
+                            advanceState(2);
+                            maybeBind(node.left);
+                        }
+                        break;
+                    }
+                    case 2: {
+                        advanceState(3);
+                        maybeBind(node.operatorToken);
+                        break;
+                    }
+                    case 3: {
+                        advanceState(4);
+                        maybeBind(node.right);
+                        break;
+                    }
+                    case 4: {
+                        var operator = node.operatorToken.kind;
+                        if (ts.isAssignmentOperator(operator) && !ts.isAssignmentTarget(node)) {
+                            bindAssignmentTargetFlow(node.left);
+                            if (operator === 62 && node.left.kind === 195) {
+                                var elementAccess = node.left;
+                                if (isNarrowableOperand(elementAccess.expression)) {
+                                    currentFlow = createFlowMutation(256, currentFlow, node);
+                                }
+                            }
+                        }
+                        completeNode();
+                        break;
+                    }
+                    default: return ts.Debug.fail("Invalid state " + workStacks.state[stackIndex] + " for bindBinaryExpressionFlow");
+                }
+            }
+            function advanceState(state, isInStrictMode, parent, subtreeFlags) {
+                workStacks.state[stackIndex] = state;
+                if (isInStrictMode !== undefined) {
+                    workStacks.inStrictMode[stackIndex] = isInStrictMode;
+                }
+                if (parent !== undefined) {
+                    workStacks.parent[stackIndex] = parent;
+                }
+                if (subtreeFlags !== undefined) {
+                    workStacks.subtreeFlags[stackIndex] = subtreeFlags;
+                }
+            }
+            function completeNode() {
+                if (workStacks.inStrictMode[stackIndex] !== undefined) {
+                    if (workStacks.subtreeFlags[stackIndex] === -1) {
+                        skipTransformFlagAggregation = false;
+                        subtreeTransformFlags |= node.transformFlags & ~getTransformFlagsSubtreeExclusions(node.kind);
+                    }
+                    else if (workStacks.subtreeFlags[stackIndex] !== undefined) {
+                        subtreeTransformFlags = workStacks.subtreeFlags[stackIndex] | computeTransformFlagsForNode(node, subtreeTransformFlags);
+                    }
+                    inStrictMode = workStacks.inStrictMode[stackIndex];
+                    parent = workStacks.parent[stackIndex];
+                }
+                stackIndex--;
+            }
+            function maybeBind(node) {
+                if (node && ts.isBinaryExpression(node)) {
+                    stackIndex++;
+                    workStacks.expr[stackIndex] = node;
+                    workStacks.state[stackIndex] = 0;
+                    workStacks.inStrictMode[stackIndex] = undefined;
+                    workStacks.parent[stackIndex] = undefined;
+                    workStacks.subtreeFlags[stackIndex] = undefined;
+                }
+                else {
+                    bind(node);
+                }
+            }
+        }
+        function bindDeleteExpressionFlow(node) {
+            bindEachChild(node);
+            if (node.expression.kind === 194) {
+                bindAssignmentTargetFlow(node.expression);
+            }
+        }
+        function bindConditionalExpressionFlow(node) {
+            var trueLabel = createBranchLabel();
+            var falseLabel = createBranchLabel();
+            var postExpressionLabel = createBranchLabel();
+            bindCondition(node.condition, trueLabel, falseLabel);
+            currentFlow = finishFlowLabel(trueLabel);
+            bind(node.questionToken);
+            bind(node.whenTrue);
+            addAntecedent(postExpressionLabel, currentFlow);
+            currentFlow = finishFlowLabel(falseLabel);
+            bind(node.colonToken);
+            bind(node.whenFalse);
+            addAntecedent(postExpressionLabel, currentFlow);
+            currentFlow = finishFlowLabel(postExpressionLabel);
+        }
+        function bindInitializedVariableFlow(node) {
+            var name = !ts.isOmittedExpression(node) ? node.name : undefined;
+            if (ts.isBindingPattern(name)) {
+                for (var _i = 0, _a = name.elements; _i < _a.length; _i++) {
+                    var child = _a[_i];
+                    bindInitializedVariableFlow(child);
+                }
+            }
+            else {
+                currentFlow = createFlowMutation(16, currentFlow, node);
+            }
+        }
+        function bindVariableDeclarationFlow(node) {
+            bindEachChild(node);
+            if (node.initializer || ts.isForInOrOfStatement(node.parent.parent)) {
+                bindInitializedVariableFlow(node);
+            }
+        }
+        function bindJSDocTypeAlias(node) {
+            node.tagName.parent = node;
+            if (node.kind !== 316 && node.fullName) {
+                setParentPointers(node, node.fullName);
+            }
+        }
+        function bindJSDocClassTag(node) {
+            bindEachChild(node);
+            var host = ts.getHostSignatureFromJSDoc(node);
+            if (host && host.kind !== 161) {
+                addDeclarationToSymbol(host.symbol, host, 32);
+            }
+        }
+        function bindOptionalExpression(node, trueTarget, falseTarget) {
+            doWithConditionalBranches(bind, node, trueTarget, falseTarget);
+            if (!ts.isOptionalChain(node) || ts.isOutermostOptionalChain(node)) {
+                addAntecedent(trueTarget, createFlowCondition(32, currentFlow, node));
+                addAntecedent(falseTarget, createFlowCondition(64, currentFlow, node));
+            }
+        }
+        function bindOptionalChainRest(node) {
+            switch (node.kind) {
+                case 194:
+                    bind(node.questionDotToken);
+                    bind(node.name);
+                    break;
+                case 195:
+                    bind(node.questionDotToken);
+                    bind(node.argumentExpression);
+                    break;
+                case 196:
+                    bind(node.questionDotToken);
+                    bindEach(node.typeArguments);
+                    bindEach(node.arguments);
+                    break;
+            }
+        }
+        function bindOptionalChain(node, trueTarget, falseTarget) {
+            var preChainLabel = ts.isOptionalChainRoot(node) ? createBranchLabel() : undefined;
+            bindOptionalExpression(node.expression, preChainLabel || trueTarget, falseTarget);
+            if (preChainLabel) {
+                currentFlow = finishFlowLabel(preChainLabel);
+            }
+            doWithConditionalBranches(bindOptionalChainRest, node, trueTarget, falseTarget);
+            if (ts.isOutermostOptionalChain(node)) {
+                addAntecedent(trueTarget, createFlowCondition(32, currentFlow, node));
+                addAntecedent(falseTarget, createFlowCondition(64, currentFlow, node));
+            }
+        }
+        function bindOptionalChainFlow(node) {
+            if (isTopLevelLogicalExpression(node)) {
+                var postExpressionLabel = createBranchLabel();
+                bindOptionalChain(node, postExpressionLabel, postExpressionLabel);
+                currentFlow = finishFlowLabel(postExpressionLabel);
+            }
+            else {
+                bindOptionalChain(node, currentTrueTarget, currentFalseTarget);
+            }
+        }
+        function bindNonNullExpressionFlow(node) {
+            if (ts.isOptionalChain(node)) {
+                bindOptionalChainFlow(node);
+            }
+            else {
+                bindEachChild(node);
+            }
+        }
+        function bindAccessExpressionFlow(node) {
+            if (ts.isOptionalChain(node)) {
+                bindOptionalChainFlow(node);
+            }
+            else {
+                bindEachChild(node);
+            }
+        }
+        function bindCallExpressionFlow(node) {
+            if (ts.isOptionalChain(node)) {
+                bindOptionalChainFlow(node);
+            }
+            else {
+                var expr = ts.skipParentheses(node.expression);
+                if (expr.kind === 201 || expr.kind === 202) {
+                    bindEach(node.typeArguments);
+                    bindEach(node.arguments);
+                    bind(node.expression);
+                }
+                else {
+                    bindEachChild(node);
+                }
+            }
+            if (node.expression.kind === 194) {
+                var propertyAccess = node.expression;
+                if (ts.isIdentifier(propertyAccess.name) && isNarrowableOperand(propertyAccess.expression) && ts.isPushOrUnshiftIdentifier(propertyAccess.name)) {
+                    currentFlow = createFlowMutation(256, currentFlow, node);
+                }
+            }
+        }
+        function getContainerFlags(node) {
+            switch (node.kind) {
+                case 214:
+                case 245:
+                case 248:
+                case 193:
+                case 173:
+                case 304:
+                case 274:
+                    return 1;
+                case 246:
+                    return 1 | 64;
+                case 249:
+                case 247:
+                case 186:
+                    return 1 | 32;
+                case 290:
+                    return 1 | 4 | 32;
+                case 161:
+                    if (ts.isObjectLiteralOrClassExpressionMethod(node)) {
+                        return 1 | 4 | 32 | 8 | 128;
+                    }
+                case 162:
+                case 244:
+                case 160:
+                case 163:
+                case 164:
+                case 165:
+                case 305:
+                case 300:
+                case 170:
+                case 166:
+                case 167:
+                case 171:
+                    return 1 | 4 | 32 | 8;
+                case 201:
+                case 202:
+                    return 1 | 4 | 32 | 8 | 16;
+                case 250:
+                    return 4;
+                case 159:
+                    return node.initializer ? 4 : 0;
+                case 280:
+                case 230:
+                case 231:
+                case 232:
+                case 251:
+                    return 2;
+                case 223:
+                    return ts.isFunctionLike(node.parent) ? 0 : 2;
+            }
+            return 0;
+        }
+        function addToContainerChain(next) {
+            if (lastContainer) {
+                lastContainer.nextContainer = next;
+            }
+            lastContainer = next;
+        }
+        function declareSymbolAndAddToSymbolTable(node, symbolFlags, symbolExcludes) {
+            switch (container.kind) {
+                case 249:
+                    return declareModuleMember(node, symbolFlags, symbolExcludes);
+                case 290:
+                    return declareSourceFileMember(node, symbolFlags, symbolExcludes);
+                case 214:
+                case 245:
+                    return declareClassMember(node, symbolFlags, symbolExcludes);
+                case 248:
+                    return declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes);
+                case 173:
+                case 304:
+                case 193:
+                case 246:
+                case 274:
+                    return declareSymbol(container.symbol.members, container.symbol, node, symbolFlags, symbolExcludes);
+                case 170:
+                case 171:
+                case 165:
+                case 166:
+                case 305:
+                case 167:
+                case 161:
+                case 160:
+                case 162:
+                case 163:
+                case 164:
+                case 244:
+                case 201:
+                case 202:
+                case 300:
+                case 322:
+                case 315:
+                case 247:
+                case 186:
+                    return declareSymbol(container.locals, undefined, node, symbolFlags, symbolExcludes);
+            }
+        }
+        function declareClassMember(node, symbolFlags, symbolExcludes) {
+            return ts.hasModifier(node, 32)
+                ? declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes)
+                : declareSymbol(container.symbol.members, container.symbol, node, symbolFlags, symbolExcludes);
+        }
+        function declareSourceFileMember(node, symbolFlags, symbolExcludes) {
+            return ts.isExternalModule(file)
+                ? declareModuleMember(node, symbolFlags, symbolExcludes)
+                : declareSymbol(file.locals, undefined, node, symbolFlags, symbolExcludes);
+        }
+        function hasExportDeclarations(node) {
+            var body = ts.isSourceFile(node) ? node : ts.tryCast(node.body, ts.isModuleBlock);
+            return !!body && body.statements.some(function (s) { return ts.isExportDeclaration(s) || ts.isExportAssignment(s); });
+        }
+        function setExportContextFlag(node) {
+            if (node.flags & 8388608 && !hasExportDeclarations(node)) {
+                node.flags |= 64;
+            }
+            else {
+                node.flags &= ~64;
+            }
+        }
+        function bindModuleDeclaration(node) {
+            setExportContextFlag(node);
+            if (ts.isAmbientModule(node)) {
+                if (ts.hasModifier(node, 1)) {
+                    errorOnFirstToken(node, ts.Diagnostics.export_modifier_cannot_be_applied_to_ambient_modules_and_module_augmentations_since_they_are_always_visible);
+                }
+                if (ts.isModuleAugmentationExternal(node)) {
+                    declareModuleSymbol(node);
+                }
+                else {
+                    var pattern = void 0;
+                    if (node.name.kind === 10) {
+                        var text = node.name.text;
+                        if (ts.hasZeroOrOneAsteriskCharacter(text)) {
+                            pattern = ts.tryParsePattern(text);
+                        }
+                        else {
+                            errorOnFirstToken(node.name, ts.Diagnostics.Pattern_0_can_have_at_most_one_Asterisk_character, text);
+                        }
+                    }
+                    var symbol = declareSymbolAndAddToSymbolTable(node, 512, 110735);
+                    file.patternAmbientModules = ts.append(file.patternAmbientModules, pattern && { pattern: pattern, symbol: symbol });
+                }
+            }
+            else {
+                var state = declareModuleSymbol(node);
+                if (state !== 0) {
+                    var symbol = node.symbol;
+                    symbol.constEnumOnlyModule = (!(symbol.flags & (16 | 32 | 256)))
+                        && state === 2
+                        && symbol.constEnumOnlyModule !== false;
+                }
+            }
+        }
+        function declareModuleSymbol(node) {
+            var state = getModuleInstanceState(node);
+            var instantiated = state !== 0;
+            declareSymbolAndAddToSymbolTable(node, instantiated ? 512 : 1024, instantiated ? 110735 : 0);
+            return state;
+        }
+        function bindFunctionOrConstructorType(node) {
+            var symbol = createSymbol(131072, getDeclarationName(node));
+            addDeclarationToSymbol(symbol, node, 131072);
+            var typeLiteralSymbol = createSymbol(2048, "__type");
+            addDeclarationToSymbol(typeLiteralSymbol, node, 2048);
+            typeLiteralSymbol.members = ts.createSymbolTable();
+            typeLiteralSymbol.members.set(symbol.escapedName, symbol);
+        }
+        function bindObjectLiteralExpression(node) {
+            if (inStrictMode && !ts.isAssignmentTarget(node)) {
+                var seen = ts.createUnderscoreEscapedMap();
+                for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
+                    var prop = _a[_i];
+                    if (prop.kind === 283 || prop.name.kind !== 75) {
+                        continue;
+                    }
+                    var identifier = prop.name;
+                    var currentKind = prop.kind === 281 || prop.kind === 282 || prop.kind === 161
+                        ? 1
+                        : 2;
+                    var existingKind = seen.get(identifier.escapedText);
+                    if (!existingKind) {
+                        seen.set(identifier.escapedText, currentKind);
+                        continue;
+                    }
+                    if (currentKind === 1 && existingKind === 1) {
+                        var span = ts.getErrorSpanForNode(file, identifier);
+                        file.bindDiagnostics.push(ts.createFileDiagnostic(file, span.start, span.length, ts.Diagnostics.An_object_literal_cannot_have_multiple_properties_with_the_same_name_in_strict_mode));
+                    }
+                }
+            }
+            return bindAnonymousDeclaration(node, 4096, "__object");
+        }
+        function bindJsxAttributes(node) {
+            return bindAnonymousDeclaration(node, 4096, "__jsxAttributes");
+        }
+        function bindJsxAttribute(node, symbolFlags, symbolExcludes) {
+            return declareSymbolAndAddToSymbolTable(node, symbolFlags, symbolExcludes);
+        }
+        function bindAnonymousDeclaration(node, symbolFlags, name) {
+            var symbol = createSymbol(symbolFlags, name);
+            if (symbolFlags & (8 | 106500)) {
+                symbol.parent = container.symbol;
+            }
+            addDeclarationToSymbol(symbol, node, symbolFlags);
+            return symbol;
+        }
+        function bindBlockScopedDeclaration(node, symbolFlags, symbolExcludes) {
+            switch (blockScopeContainer.kind) {
+                case 249:
+                    declareModuleMember(node, symbolFlags, symbolExcludes);
+                    break;
+                case 290:
+                    if (ts.isExternalOrCommonJsModule(container)) {
+                        declareModuleMember(node, symbolFlags, symbolExcludes);
+                        break;
+                    }
+                default:
+                    if (!blockScopeContainer.locals) {
+                        blockScopeContainer.locals = ts.createSymbolTable();
+                        addToContainerChain(blockScopeContainer);
+                    }
+                    declareSymbol(blockScopeContainer.locals, undefined, node, symbolFlags, symbolExcludes);
+            }
+        }
+        function delayedBindJSDocTypedefTag() {
+            if (!delayedTypeAliases) {
+                return;
+            }
+            var saveContainer = container;
+            var saveLastContainer = lastContainer;
+            var saveBlockScopeContainer = blockScopeContainer;
+            var saveParent = parent;
+            var saveCurrentFlow = currentFlow;
+            for (var _i = 0, delayedTypeAliases_1 = delayedTypeAliases; _i < delayedTypeAliases_1.length; _i++) {
+                var typeAlias = delayedTypeAliases_1[_i];
+                var host = ts.getJSDocHost(typeAlias);
+                container = ts.findAncestor(host.parent, function (n) { return !!(getContainerFlags(n) & 1); }) || file;
+                blockScopeContainer = ts.getEnclosingBlockScopeContainer(host) || file;
+                currentFlow = initFlowNode({ flags: 2 });
+                parent = typeAlias;
+                bind(typeAlias.typeExpression);
+                var declName = ts.getNameOfDeclaration(typeAlias);
+                if ((ts.isJSDocEnumTag(typeAlias) || !typeAlias.fullName) && declName && ts.isPropertyAccessEntityNameExpression(declName.parent)) {
+                    var isTopLevel = isTopLevelNamespaceAssignment(declName.parent);
+                    if (isTopLevel) {
+                        bindPotentiallyMissingNamespaces(file.symbol, declName.parent, isTopLevel, !!ts.findAncestor(declName, function (d) { return ts.isPropertyAccessExpression(d) && d.name.escapedText === "prototype"; }), false);
+                        var oldContainer = container;
+                        switch (ts.getAssignmentDeclarationPropertyAccessKind(declName.parent)) {
+                            case 1:
+                            case 2:
+                                if (!ts.isExternalOrCommonJsModule(file)) {
+                                    container = undefined;
+                                }
+                                else {
+                                    container = file;
+                                }
+                                break;
+                            case 4:
+                                container = declName.parent.expression;
+                                break;
+                            case 3:
+                                container = declName.parent.expression.name;
+                                break;
+                            case 5:
+                                container = isExportsOrModuleExportsOrAlias(file, declName.parent.expression) ? file
+                                    : ts.isPropertyAccessExpression(declName.parent.expression) ? declName.parent.expression.name
+                                        : declName.parent.expression;
+                                break;
+                            case 0:
+                                return ts.Debug.fail("Shouldn't have detected typedef or enum on non-assignment declaration");
+                        }
+                        if (container) {
+                            declareModuleMember(typeAlias, 524288, 788968);
+                        }
+                        container = oldContainer;
+                    }
+                }
+                else if (ts.isJSDocEnumTag(typeAlias) || !typeAlias.fullName || typeAlias.fullName.kind === 75) {
+                    parent = typeAlias.parent;
+                    bindBlockScopedDeclaration(typeAlias, 524288, 788968);
+                }
+                else {
+                    bind(typeAlias.fullName);
+                }
+            }
+            container = saveContainer;
+            lastContainer = saveLastContainer;
+            blockScopeContainer = saveBlockScopeContainer;
+            parent = saveParent;
+            currentFlow = saveCurrentFlow;
+        }
+        function checkStrictModeIdentifier(node) {
+            if (inStrictMode &&
+                node.originalKeywordKind >= 113 &&
+                node.originalKeywordKind <= 121 &&
+                !ts.isIdentifierName(node) &&
+                !(node.flags & 8388608) &&
+                !(node.flags & 4194304)) {
+                if (!file.parseDiagnostics.length) {
+                    file.bindDiagnostics.push(createDiagnosticForNode(node, getStrictModeIdentifierMessage(node), ts.declarationNameToString(node)));
+                }
+            }
+        }
+        function getStrictModeIdentifierMessage(node) {
+            if (ts.getContainingClass(node)) {
+                return ts.Diagnostics.Identifier_expected_0_is_a_reserved_word_in_strict_mode_Class_definitions_are_automatically_in_strict_mode;
+            }
+            if (file.externalModuleIndicator) {
+                return ts.Diagnostics.Identifier_expected_0_is_a_reserved_word_in_strict_mode_Modules_are_automatically_in_strict_mode;
+            }
+            return ts.Diagnostics.Identifier_expected_0_is_a_reserved_word_in_strict_mode;
+        }
+        function checkPrivateIdentifier(node) {
+            if (node.escapedText === "#constructor") {
+                if (!file.parseDiagnostics.length) {
+                    file.bindDiagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.constructor_is_a_reserved_word, ts.declarationNameToString(node)));
+                }
+            }
+        }
+        function checkStrictModeBinaryExpression(node) {
+            if (inStrictMode && ts.isLeftHandSideExpression(node.left) && ts.isAssignmentOperator(node.operatorToken.kind)) {
+                checkStrictModeEvalOrArguments(node, node.left);
+            }
+        }
+        function checkStrictModeCatchClause(node) {
+            if (inStrictMode && node.variableDeclaration) {
+                checkStrictModeEvalOrArguments(node, node.variableDeclaration.name);
+            }
+        }
+        function checkStrictModeDeleteExpression(node) {
+            if (inStrictMode && node.expression.kind === 75) {
+                var span = ts.getErrorSpanForNode(file, node.expression);
+                file.bindDiagnostics.push(ts.createFileDiagnostic(file, span.start, span.length, ts.Diagnostics.delete_cannot_be_called_on_an_identifier_in_strict_mode));
+            }
+        }
+        function isEvalOrArgumentsIdentifier(node) {
+            return ts.isIdentifier(node) && (node.escapedText === "eval" || node.escapedText === "arguments");
+        }
+        function checkStrictModeEvalOrArguments(contextNode, name) {
+            if (name && name.kind === 75) {
+                var identifier = name;
+                if (isEvalOrArgumentsIdentifier(identifier)) {
+                    var span = ts.getErrorSpanForNode(file, name);
+                    file.bindDiagnostics.push(ts.createFileDiagnostic(file, span.start, span.length, getStrictModeEvalOrArgumentsMessage(contextNode), ts.idText(identifier)));
+                }
+            }
+        }
+        function getStrictModeEvalOrArgumentsMessage(node) {
+            if (ts.getContainingClass(node)) {
+                return ts.Diagnostics.Invalid_use_of_0_Class_definitions_are_automatically_in_strict_mode;
+            }
+            if (file.externalModuleIndicator) {
+                return ts.Diagnostics.Invalid_use_of_0_Modules_are_automatically_in_strict_mode;
+            }
+            return ts.Diagnostics.Invalid_use_of_0_in_strict_mode;
+        }
+        function checkStrictModeFunctionName(node) {
+            if (inStrictMode) {
+                checkStrictModeEvalOrArguments(node, node.name);
+            }
+        }
+        function getStrictModeBlockScopeFunctionDeclarationMessage(node) {
+            if (ts.getContainingClass(node)) {
+                return ts.Diagnostics.Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Class_definitions_are_automatically_in_strict_mode;
+            }
+            if (file.externalModuleIndicator) {
+                return ts.Diagnostics.Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Modules_are_automatically_in_strict_mode;
+            }
+            return ts.Diagnostics.Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5;
+        }
+        function checkStrictModeFunctionDeclaration(node) {
+            if (languageVersion < 2) {
+                if (blockScopeContainer.kind !== 290 &&
+                    blockScopeContainer.kind !== 249 &&
+                    !ts.isFunctionLike(blockScopeContainer)) {
+                    var errorSpan = ts.getErrorSpanForNode(file, node);
+                    file.bindDiagnostics.push(ts.createFileDiagnostic(file, errorSpan.start, errorSpan.length, getStrictModeBlockScopeFunctionDeclarationMessage(node)));
+                }
+            }
+        }
+        function checkStrictModeNumericLiteral(node) {
+            if (inStrictMode && node.numericLiteralFlags & 32) {
+                file.bindDiagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.Octal_literals_are_not_allowed_in_strict_mode));
+            }
+        }
+        function checkStrictModePostfixUnaryExpression(node) {
+            if (inStrictMode) {
+                checkStrictModeEvalOrArguments(node, node.operand);
+            }
+        }
+        function checkStrictModePrefixUnaryExpression(node) {
+            if (inStrictMode) {
+                if (node.operator === 45 || node.operator === 46) {
+                    checkStrictModeEvalOrArguments(node, node.operand);
+                }
+            }
+        }
+        function checkStrictModeWithStatement(node) {
+            if (inStrictMode) {
+                errorOnFirstToken(node, ts.Diagnostics.with_statements_are_not_allowed_in_strict_mode);
+            }
+        }
+        function checkStrictModeLabeledStatement(node) {
+            if (inStrictMode && options.target >= 2) {
+                if (ts.isDeclarationStatement(node.statement) || ts.isVariableStatement(node.statement)) {
+                    errorOnFirstToken(node.label, ts.Diagnostics.A_label_is_not_allowed_here);
+                }
+            }
+        }
+        function errorOnFirstToken(node, message, arg0, arg1, arg2) {
+            var span = ts.getSpanOfTokenAtPosition(file, node.pos);
+            file.bindDiagnostics.push(ts.createFileDiagnostic(file, span.start, span.length, message, arg0, arg1, arg2));
+        }
+        function errorOrSuggestionOnNode(isError, node, message) {
+            errorOrSuggestionOnRange(isError, node, node, message);
+        }
+        function errorOrSuggestionOnRange(isError, startNode, endNode, message) {
+            addErrorOrSuggestionDiagnostic(isError, { pos: ts.getTokenPosOfNode(startNode, file), end: endNode.end }, message);
+        }
+        function addErrorOrSuggestionDiagnostic(isError, range, message) {
+            var diag = ts.createFileDiagnostic(file, range.pos, range.end - range.pos, message);
+            if (isError) {
+                file.bindDiagnostics.push(diag);
+            }
+            else {
+                file.bindSuggestionDiagnostics = ts.append(file.bindSuggestionDiagnostics, __assign(__assign({}, diag), { category: ts.DiagnosticCategory.Suggestion }));
+            }
+        }
+        function bind(node) {
+            if (!node) {
+                return;
+            }
+            node.parent = parent;
+            var saveInStrictMode = inStrictMode;
+            bindWorker(node);
+            if (node.kind > 152) {
+                var saveParent = parent;
+                parent = node;
+                var containerFlags = getContainerFlags(node);
+                if (containerFlags === 0) {
+                    bindChildren(node);
+                }
+                else {
+                    bindContainer(node, containerFlags);
+                }
+                parent = saveParent;
+            }
+            else if (!skipTransformFlagAggregation && (node.transformFlags & 536870912) === 0) {
+                subtreeTransformFlags |= computeTransformFlagsForNode(node, 0);
+                var saveParent = parent;
+                if (node.kind === 1)
+                    parent = node;
+                bindJSDoc(node);
+                parent = saveParent;
+            }
+            inStrictMode = saveInStrictMode;
+        }
+        function bindJSDoc(node) {
+            if (ts.hasJSDocNodes(node)) {
+                if (ts.isInJSFile(node)) {
+                    for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
+                        var j = _a[_i];
+                        bind(j);
+                    }
+                }
+                else {
+                    for (var _b = 0, _c = node.jsDoc; _b < _c.length; _b++) {
+                        var j = _c[_b];
+                        setParentPointers(node, j);
+                    }
+                }
+            }
+        }
+        function updateStrictModeStatementList(statements) {
+            if (!inStrictMode) {
+                for (var _i = 0, statements_2 = statements; _i < statements_2.length; _i++) {
+                    var statement = statements_2[_i];
+                    if (!ts.isPrologueDirective(statement)) {
+                        return;
+                    }
+                    if (isUseStrictPrologueDirective(statement)) {
+                        inStrictMode = true;
+                        return;
+                    }
+                }
+            }
+        }
+        function isUseStrictPrologueDirective(node) {
+            var nodeText = ts.getSourceTextOfNodeFromSourceFile(file, node.expression);
+            return nodeText === '"use strict"' || nodeText === "'use strict'";
+        }
+        function bindWorker(node) {
+            switch (node.kind) {
+                case 75:
+                    if (node.isInJSDocNamespace) {
+                        var parentNode = node.parent;
+                        while (parentNode && !ts.isJSDocTypeAlias(parentNode)) {
+                            parentNode = parentNode.parent;
+                        }
+                        bindBlockScopedDeclaration(parentNode, 524288, 788968);
+                        break;
+                    }
+                case 104:
+                    if (currentFlow && (ts.isExpression(node) || parent.kind === 282)) {
+                        node.flowNode = currentFlow;
+                    }
+                    return checkStrictModeIdentifier(node);
+                case 76:
+                    return checkPrivateIdentifier(node);
+                case 194:
+                case 195:
+                    var expr = node;
+                    if (currentFlow && isNarrowableReference(expr)) {
+                        expr.flowNode = currentFlow;
+                    }
+                    if (ts.isSpecialPropertyDeclaration(expr)) {
+                        bindSpecialPropertyDeclaration(expr);
+                    }
+                    if (ts.isInJSFile(expr) &&
+                        file.commonJsModuleIndicator &&
+                        ts.isModuleExportsAccessExpression(expr) &&
+                        !lookupSymbolForNameWorker(blockScopeContainer, "module")) {
+                        declareSymbol(file.locals, undefined, expr.expression, 1 | 134217728, 111550);
+                    }
+                    break;
+                case 209:
+                    var specialKind = ts.getAssignmentDeclarationKind(node);
+                    switch (specialKind) {
+                        case 1:
+                            bindExportsPropertyAssignment(node);
+                            break;
+                        case 2:
+                            bindModuleExportsAssignment(node);
+                            break;
+                        case 3:
+                            bindPrototypePropertyAssignment(node.left, node);
+                            break;
+                        case 6:
+                            bindPrototypeAssignment(node);
+                            break;
+                        case 4:
+                            bindThisPropertyAssignment(node);
+                            break;
+                        case 5:
+                            bindSpecialPropertyAssignment(node);
+                            break;
+                        case 0:
+                            break;
+                        default:
+                            ts.Debug.fail("Unknown binary expression special property assignment kind");
+                    }
+                    return checkStrictModeBinaryExpression(node);
+                case 280:
+                    return checkStrictModeCatchClause(node);
+                case 203:
+                    return checkStrictModeDeleteExpression(node);
+                case 8:
+                    return checkStrictModeNumericLiteral(node);
+                case 208:
+                    return checkStrictModePostfixUnaryExpression(node);
+                case 207:
+                    return checkStrictModePrefixUnaryExpression(node);
+                case 236:
+                    return checkStrictModeWithStatement(node);
+                case 238:
+                    return checkStrictModeLabeledStatement(node);
+                case 183:
+                    seenThisKeyword = true;
+                    return;
+                case 168:
+                    break;
+                case 155:
+                    return bindTypeParameter(node);
+                case 156:
+                    return bindParameter(node);
+                case 242:
+                    return bindVariableDeclarationOrBindingElement(node);
+                case 191:
+                    node.flowNode = currentFlow;
+                    return bindVariableDeclarationOrBindingElement(node);
+                case 159:
+                case 158:
+                    return bindPropertyWorker(node);
+                case 281:
+                case 282:
+                    return bindPropertyOrMethodOrAccessor(node, 4, 0);
+                case 284:
+                    return bindPropertyOrMethodOrAccessor(node, 8, 900095);
+                case 165:
+                case 166:
+                case 167:
+                    return declareSymbolAndAddToSymbolTable(node, 131072, 0);
+                case 161:
+                case 160:
+                    return bindPropertyOrMethodOrAccessor(node, 8192 | (node.questionToken ? 16777216 : 0), ts.isObjectLiteralMethod(node) ? 0 : 103359);
+                case 244:
+                    return bindFunctionDeclaration(node);
+                case 162:
+                    return declareSymbolAndAddToSymbolTable(node, 16384, 0);
+                case 163:
+                    return bindPropertyOrMethodOrAccessor(node, 32768, 46015);
+                case 164:
+                    return bindPropertyOrMethodOrAccessor(node, 65536, 78783);
+                case 170:
+                case 300:
+                case 305:
+                case 171:
+                    return bindFunctionOrConstructorType(node);
+                case 173:
+                case 304:
+                case 186:
+                    return bindAnonymousTypeWorker(node);
+                case 310:
+                    return bindJSDocClassTag(node);
+                case 193:
+                    return bindObjectLiteralExpression(node);
+                case 201:
+                case 202:
+                    return bindFunctionExpression(node);
+                case 196:
+                    var assignmentKind = ts.getAssignmentDeclarationKind(node);
+                    switch (assignmentKind) {
+                        case 7:
+                            return bindObjectDefinePropertyAssignment(node);
+                        case 8:
+                            return bindObjectDefinePropertyExport(node);
+                        case 9:
+                            return bindObjectDefinePrototypeProperty(node);
+                        case 0:
+                            break;
+                        default:
+                            return ts.Debug.fail("Unknown call expression assignment declaration kind");
+                    }
+                    if (ts.isInJSFile(node)) {
+                        bindCallExpression(node);
+                    }
+                    break;
+                case 214:
+                case 245:
+                    inStrictMode = true;
+                    return bindClassLikeDeclaration(node);
+                case 246:
+                    return bindBlockScopedDeclaration(node, 64, 788872);
+                case 247:
+                    return bindBlockScopedDeclaration(node, 524288, 788968);
+                case 248:
+                    return bindEnumDeclaration(node);
+                case 249:
+                    return bindModuleDeclaration(node);
+                case 274:
+                    return bindJsxAttributes(node);
+                case 273:
+                    return bindJsxAttribute(node, 4, 0);
+                case 253:
+                case 256:
+                case 258:
+                case 263:
+                    return declareSymbolAndAddToSymbolTable(node, 2097152, 2097152);
+                case 252:
+                    return bindNamespaceExportDeclaration(node);
+                case 255:
+                    return bindImportClause(node);
+                case 260:
+                    return bindExportDeclaration(node);
+                case 259:
+                    return bindExportAssignment(node);
+                case 290:
+                    updateStrictModeStatementList(node.statements);
+                    return bindSourceFileIfExternalModule();
+                case 223:
+                    if (!ts.isFunctionLike(node.parent)) {
+                        return;
+                    }
+                case 250:
+                    return updateStrictModeStatementList(node.statements);
+                case 317:
+                    if (node.parent.kind === 305) {
+                        return bindParameter(node);
+                    }
+                    if (node.parent.kind !== 304) {
+                        break;
+                    }
+                case 323:
+                    var propTag = node;
+                    var flags = propTag.isBracketed || propTag.typeExpression && propTag.typeExpression.type.kind === 299 ?
+                        4 | 16777216 :
+                        4;
+                    return declareSymbolAndAddToSymbolTable(propTag, flags, 0);
+                case 322:
+                case 315:
+                case 316:
+                    return (delayedTypeAliases || (delayedTypeAliases = [])).push(node);
+            }
+        }
+        function bindPropertyWorker(node) {
+            return bindPropertyOrMethodOrAccessor(node, 4 | (node.questionToken ? 16777216 : 0), 0);
+        }
+        function bindAnonymousTypeWorker(node) {
+            return bindAnonymousDeclaration(node, 2048, "__type");
+        }
+        function bindSourceFileIfExternalModule() {
+            setExportContextFlag(file);
+            if (ts.isExternalModule(file)) {
+                bindSourceFileAsExternalModule();
+            }
+            else if (ts.isJsonSourceFile(file)) {
+                bindSourceFileAsExternalModule();
+                var originalSymbol = file.symbol;
+                declareSymbol(file.symbol.exports, file.symbol, file, 4, 67108863);
+                file.symbol = originalSymbol;
+            }
+        }
+        function bindSourceFileAsExternalModule() {
+            bindAnonymousDeclaration(file, 512, "\"" + ts.removeFileExtension(file.fileName) + "\"");
+        }
+        function bindExportAssignment(node) {
+            if (!container.symbol || !container.symbol.exports) {
+                bindAnonymousDeclaration(node, 2097152, getDeclarationName(node));
+            }
+            else {
+                var flags = ts.exportAssignmentIsAlias(node)
+                    ? 2097152
+                    : 4;
+                var symbol = declareSymbol(container.symbol.exports, container.symbol, node, flags, 67108863);
+                if (node.isExportEquals) {
+                    ts.setValueDeclaration(symbol, node);
+                }
+            }
+        }
+        function bindNamespaceExportDeclaration(node) {
+            if (node.modifiers && node.modifiers.length) {
+                file.bindDiagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.Modifiers_cannot_appear_here));
+            }
+            var diag = !ts.isSourceFile(node.parent) ? ts.Diagnostics.Global_module_exports_may_only_appear_at_top_level
+                : !ts.isExternalModule(node.parent) ? ts.Diagnostics.Global_module_exports_may_only_appear_in_module_files
+                    : !node.parent.isDeclarationFile ? ts.Diagnostics.Global_module_exports_may_only_appear_in_declaration_files
+                        : undefined;
+            if (diag) {
+                file.bindDiagnostics.push(createDiagnosticForNode(node, diag));
+            }
+            else {
+                file.symbol.globalExports = file.symbol.globalExports || ts.createSymbolTable();
+                declareSymbol(file.symbol.globalExports, file.symbol, node, 2097152, 2097152);
+            }
+        }
+        function bindExportDeclaration(node) {
+            if (!container.symbol || !container.symbol.exports) {
+                bindAnonymousDeclaration(node, 8388608, getDeclarationName(node));
+            }
+            else if (!node.exportClause) {
+                declareSymbol(container.symbol.exports, container.symbol, node, 8388608, 0);
+            }
+            else if (ts.isNamespaceExport(node.exportClause)) {
+                node.exportClause.parent = node;
+                declareSymbol(container.symbol.exports, container.symbol, node.exportClause, 2097152, 2097152);
+            }
+        }
+        function bindImportClause(node) {
+            if (node.name) {
+                declareSymbolAndAddToSymbolTable(node, 2097152, 2097152);
+            }
+        }
+        function setCommonJsModuleIndicator(node) {
+            if (file.externalModuleIndicator) {
+                return false;
+            }
+            if (!file.commonJsModuleIndicator) {
+                file.commonJsModuleIndicator = node;
+                bindSourceFileAsExternalModule();
+            }
+            return true;
+        }
+        function bindObjectDefinePropertyExport(node) {
+            if (!setCommonJsModuleIndicator(node)) {
+                return;
+            }
+            var symbol = forEachIdentifierInEntityName(node.arguments[0], undefined, function (id, symbol) {
+                if (symbol) {
+                    addDeclarationToSymbol(symbol, id, 1536 | 67108864);
+                }
+                return symbol;
+            });
+            if (symbol) {
+                var flags = 4 | 1048576;
+                declareSymbol(symbol.exports, symbol, node, flags, 0);
+            }
+        }
+        function bindExportsPropertyAssignment(node) {
+            if (!setCommonJsModuleIndicator(node)) {
+                return;
+            }
+            var symbol = forEachIdentifierInEntityName(node.left.expression, undefined, function (id, symbol) {
+                if (symbol) {
+                    addDeclarationToSymbol(symbol, id, 1536 | 67108864);
+                }
+                return symbol;
+            });
+            if (symbol) {
+                var flags = ts.isClassExpression(node.right) ?
+                    4 | 1048576 | 32 :
+                    4 | 1048576;
+                declareSymbol(symbol.exports, symbol, node.left, flags, 0);
+            }
+        }
+        function bindModuleExportsAssignment(node) {
+            if (!setCommonJsModuleIndicator(node)) {
+                return;
+            }
+            var assignedExpression = ts.getRightMostAssignedExpression(node.right);
+            if (ts.isEmptyObjectLiteral(assignedExpression) || container === file && isExportsOrModuleExportsOrAlias(file, assignedExpression)) {
+                return;
+            }
+            var flags = ts.exportAssignmentIsAlias(node)
+                ? 2097152
+                : 4 | 1048576 | 512;
+            var symbol = declareSymbol(file.symbol.exports, file.symbol, node, flags | 67108864, 0);
+            ts.setValueDeclaration(symbol, node);
+        }
+        function bindThisPropertyAssignment(node) {
+            ts.Debug.assert(ts.isInJSFile(node));
+            var hasPrivateIdentifier = (ts.isBinaryExpression(node) && ts.isPropertyAccessExpression(node.left) && ts.isPrivateIdentifier(node.left.name))
+                || (ts.isPropertyAccessExpression(node) && ts.isPrivateIdentifier(node.name));
+            if (hasPrivateIdentifier) {
+                return;
+            }
+            var thisContainer = ts.getThisContainer(node, false);
+            switch (thisContainer.kind) {
+                case 244:
+                case 201:
+                    var constructorSymbol = thisContainer.symbol;
+                    if (ts.isBinaryExpression(thisContainer.parent) && thisContainer.parent.operatorToken.kind === 62) {
+                        var l = thisContainer.parent.left;
+                        if (ts.isBindableStaticAccessExpression(l) && ts.isPrototypeAccess(l.expression)) {
+                            constructorSymbol = lookupSymbolForPropertyAccess(l.expression.expression, thisParentContainer);
+                        }
+                    }
+                    if (constructorSymbol && constructorSymbol.valueDeclaration) {
+                        constructorSymbol.members = constructorSymbol.members || ts.createSymbolTable();
+                        if (ts.hasDynamicName(node)) {
+                            bindDynamicallyNamedThisPropertyAssignment(node, constructorSymbol);
+                        }
+                        else {
+                            declareSymbol(constructorSymbol.members, constructorSymbol, node, 4 | 67108864, 0 & ~4);
+                        }
+                        addDeclarationToSymbol(constructorSymbol, constructorSymbol.valueDeclaration, 32);
+                    }
+                    break;
+                case 162:
+                case 159:
+                case 161:
+                case 163:
+                case 164:
+                    var containingClass = thisContainer.parent;
+                    var symbolTable = ts.hasModifier(thisContainer, 32) ? containingClass.symbol.exports : containingClass.symbol.members;
+                    if (ts.hasDynamicName(node)) {
+                        bindDynamicallyNamedThisPropertyAssignment(node, containingClass.symbol);
+                    }
+                    else {
+                        declareSymbol(symbolTable, containingClass.symbol, node, 4 | 67108864, 0, true);
+                    }
+                    break;
+                case 290:
+                    if (ts.hasDynamicName(node)) {
+                        break;
+                    }
+                    else if (thisContainer.commonJsModuleIndicator) {
+                        declareSymbol(thisContainer.symbol.exports, thisContainer.symbol, node, 4 | 1048576, 0);
+                    }
+                    else {
+                        declareSymbolAndAddToSymbolTable(node, 1, 111550);
+                    }
+                    break;
+                default:
+                    ts.Debug.failBadSyntaxKind(thisContainer);
+            }
+        }
+        function bindDynamicallyNamedThisPropertyAssignment(node, symbol) {
+            bindAnonymousDeclaration(node, 4, "__computed");
+            addLateBoundAssignmentDeclarationToSymbol(node, symbol);
+        }
+        function addLateBoundAssignmentDeclarationToSymbol(node, symbol) {
+            if (symbol) {
+                var members = symbol.assignmentDeclarationMembers || (symbol.assignmentDeclarationMembers = ts.createMap());
+                members.set("" + ts.getNodeId(node), node);
+            }
+        }
+        function bindSpecialPropertyDeclaration(node) {
+            if (node.expression.kind === 104) {
+                bindThisPropertyAssignment(node);
+            }
+            else if (ts.isBindableStaticAccessExpression(node) && node.parent.parent.kind === 290) {
+                if (ts.isPrototypeAccess(node.expression)) {
+                    bindPrototypePropertyAssignment(node, node.parent);
+                }
+                else {
+                    bindStaticPropertyAssignment(node);
+                }
+            }
+        }
+        function bindPrototypeAssignment(node) {
+            node.left.parent = node;
+            node.right.parent = node;
+            bindPropertyAssignment(node.left.expression, node.left, false, true);
+        }
+        function bindObjectDefinePrototypeProperty(node) {
+            var namespaceSymbol = lookupSymbolForPropertyAccess(node.arguments[0].expression);
+            if (namespaceSymbol && namespaceSymbol.valueDeclaration) {
+                addDeclarationToSymbol(namespaceSymbol, namespaceSymbol.valueDeclaration, 32);
+            }
+            bindPotentiallyNewExpandoMemberToNamespace(node, namespaceSymbol, true);
+        }
+        function bindPrototypePropertyAssignment(lhs, parent) {
+            var classPrototype = lhs.expression;
+            var constructorFunction = classPrototype.expression;
+            lhs.parent = parent;
+            constructorFunction.parent = classPrototype;
+            classPrototype.parent = lhs;
+            bindPropertyAssignment(constructorFunction, lhs, true, true);
+        }
+        function bindObjectDefinePropertyAssignment(node) {
+            var namespaceSymbol = lookupSymbolForPropertyAccess(node.arguments[0]);
+            var isToplevel = node.parent.parent.kind === 290;
+            namespaceSymbol = bindPotentiallyMissingNamespaces(namespaceSymbol, node.arguments[0], isToplevel, false, false);
+            bindPotentiallyNewExpandoMemberToNamespace(node, namespaceSymbol, false);
+        }
+        function bindSpecialPropertyAssignment(node) {
+            var parentSymbol = lookupSymbolForPropertyAccess(node.left.expression);
+            if (!ts.isInJSFile(node) && !ts.isFunctionSymbol(parentSymbol)) {
+                return;
+            }
+            node.left.parent = node;
+            node.right.parent = node;
+            if (ts.isIdentifier(node.left.expression) && container === file && isExportsOrModuleExportsOrAlias(file, node.left.expression)) {
+                bindExportsPropertyAssignment(node);
+            }
+            else if (ts.hasDynamicName(node)) {
+                bindAnonymousDeclaration(node, 4 | 67108864, "__computed");
+                var sym = bindPotentiallyMissingNamespaces(parentSymbol, node.left.expression, isTopLevelNamespaceAssignment(node.left), false, false);
+                addLateBoundAssignmentDeclarationToSymbol(node, sym);
+            }
+            else {
+                bindStaticPropertyAssignment(ts.cast(node.left, ts.isBindableStaticNameExpression));
+            }
+        }
+        function bindStaticPropertyAssignment(node) {
+            ts.Debug.assert(!ts.isIdentifier(node));
+            node.expression.parent = node;
+            bindPropertyAssignment(node.expression, node, false, false);
+        }
+        function bindPotentiallyMissingNamespaces(namespaceSymbol, entityName, isToplevel, isPrototypeProperty, containerIsClass) {
+            if (isToplevel && !isPrototypeProperty) {
+                var flags_1 = 1536 | 67108864;
+                var excludeFlags_1 = 110735 & ~67108864;
+                namespaceSymbol = forEachIdentifierInEntityName(entityName, namespaceSymbol, function (id, symbol, parent) {
+                    if (symbol) {
+                        addDeclarationToSymbol(symbol, id, flags_1);
+                        return symbol;
+                    }
+                    else {
+                        var table = parent ? parent.exports :
+                            file.jsGlobalAugmentations || (file.jsGlobalAugmentations = ts.createSymbolTable());
+                        return declareSymbol(table, parent, id, flags_1, excludeFlags_1);
+                    }
+                });
+            }
+            if (containerIsClass && namespaceSymbol && namespaceSymbol.valueDeclaration) {
+                addDeclarationToSymbol(namespaceSymbol, namespaceSymbol.valueDeclaration, 32);
+            }
+            return namespaceSymbol;
+        }
+        function bindPotentiallyNewExpandoMemberToNamespace(declaration, namespaceSymbol, isPrototypeProperty) {
+            if (!namespaceSymbol || !isExpandoSymbol(namespaceSymbol)) {
+                return;
+            }
+            var symbolTable = isPrototypeProperty ?
+                (namespaceSymbol.members || (namespaceSymbol.members = ts.createSymbolTable())) :
+                (namespaceSymbol.exports || (namespaceSymbol.exports = ts.createSymbolTable()));
+            var includes = 0;
+            var excludes = 0;
+            if (ts.isFunctionLikeDeclaration(ts.getAssignedExpandoInitializer(declaration))) {
+                includes = 8192;
+                excludes = 103359;
+            }
+            else if (ts.isCallExpression(declaration) && ts.isBindableObjectDefinePropertyCall(declaration)) {
+                if (ts.some(declaration.arguments[2].properties, function (p) {
+                    var id = ts.getNameOfDeclaration(p);
+                    return !!id && ts.isIdentifier(id) && ts.idText(id) === "set";
+                })) {
+                    includes |= 65536 | 4;
+                    excludes |= 78783;
+                }
+                if (ts.some(declaration.arguments[2].properties, function (p) {
+                    var id = ts.getNameOfDeclaration(p);
+                    return !!id && ts.isIdentifier(id) && ts.idText(id) === "get";
+                })) {
+                    includes |= 32768 | 4;
+                    excludes |= 46015;
+                }
+            }
+            if (includes === 0) {
+                includes = 4;
+                excludes = 0;
+            }
+            declareSymbol(symbolTable, namespaceSymbol, declaration, includes | 67108864, excludes & ~67108864);
+        }
+        function isTopLevelNamespaceAssignment(propertyAccess) {
+            return ts.isBinaryExpression(propertyAccess.parent)
+                ? getParentOfBinaryExpression(propertyAccess.parent).parent.kind === 290
+                : propertyAccess.parent.parent.kind === 290;
+        }
+        function bindPropertyAssignment(name, propertyAccess, isPrototypeProperty, containerIsClass) {
+            var namespaceSymbol = lookupSymbolForPropertyAccess(name);
+            var isToplevel = isTopLevelNamespaceAssignment(propertyAccess);
+            namespaceSymbol = bindPotentiallyMissingNamespaces(namespaceSymbol, propertyAccess.expression, isToplevel, isPrototypeProperty, containerIsClass);
+            bindPotentiallyNewExpandoMemberToNamespace(propertyAccess, namespaceSymbol, isPrototypeProperty);
+        }
+        function isExpandoSymbol(symbol) {
+            if (symbol.flags & (16 | 32 | 1024)) {
+                return true;
+            }
+            var node = symbol.valueDeclaration;
+            if (node && ts.isCallExpression(node)) {
+                return !!ts.getAssignedExpandoInitializer(node);
+            }
+            var init = !node ? undefined :
+                ts.isVariableDeclaration(node) ? node.initializer :
+                    ts.isBinaryExpression(node) ? node.right :
+                        ts.isPropertyAccessExpression(node) && ts.isBinaryExpression(node.parent) ? node.parent.right :
+                            undefined;
+            init = init && ts.getRightMostAssignedExpression(init);
+            if (init) {
+                var isPrototypeAssignment = ts.isPrototypeAccess(ts.isVariableDeclaration(node) ? node.name : ts.isBinaryExpression(node) ? node.left : node);
+                return !!ts.getExpandoInitializer(ts.isBinaryExpression(init) && (init.operatorToken.kind === 56 || init.operatorToken.kind === 60) ? init.right : init, isPrototypeAssignment);
+            }
+            return false;
+        }
+        function getParentOfBinaryExpression(expr) {
+            while (ts.isBinaryExpression(expr.parent)) {
+                expr = expr.parent;
+            }
+            return expr.parent;
+        }
+        function lookupSymbolForPropertyAccess(node, lookupContainer) {
+            if (lookupContainer === void 0) { lookupContainer = container; }
+            if (ts.isIdentifier(node)) {
+                return lookupSymbolForNameWorker(lookupContainer, node.escapedText);
+            }
+            else {
+                var symbol = lookupSymbolForPropertyAccess(node.expression);
+                return symbol && symbol.exports && symbol.exports.get(ts.getElementOrPropertyAccessName(node));
+            }
+        }
+        function forEachIdentifierInEntityName(e, parent, action) {
+            if (isExportsOrModuleExportsOrAlias(file, e)) {
+                return file.symbol;
+            }
+            else if (ts.isIdentifier(e)) {
+                return action(e, lookupSymbolForPropertyAccess(e), parent);
+            }
+            else {
+                var s = forEachIdentifierInEntityName(e.expression, parent, action);
+                var name = ts.getNameOrArgument(e);
+                if (ts.isPrivateIdentifier(name)) {
+                    ts.Debug.fail("unexpected PrivateIdentifier");
+                }
+                return action(name, s && s.exports && s.exports.get(ts.getElementOrPropertyAccessName(e)), s);
+            }
+        }
+        function bindCallExpression(node) {
+            if (!file.commonJsModuleIndicator && ts.isRequireCall(node, false)) {
+                setCommonJsModuleIndicator(node);
+            }
+        }
+        function bindClassLikeDeclaration(node) {
+            if (node.kind === 245) {
+                bindBlockScopedDeclaration(node, 32, 899503);
+            }
+            else {
+                var bindingName = node.name ? node.name.escapedText : "__class";
+                bindAnonymousDeclaration(node, 32, bindingName);
+                if (node.name) {
+                    classifiableNames.set(node.name.escapedText, true);
+                }
+            }
+            var symbol = node.symbol;
+            var prototypeSymbol = createSymbol(4 | 4194304, "prototype");
+            var symbolExport = symbol.exports.get(prototypeSymbol.escapedName);
+            if (symbolExport) {
+                if (node.name) {
+                    node.name.parent = node;
+                }
+                file.bindDiagnostics.push(createDiagnosticForNode(symbolExport.declarations[0], ts.Diagnostics.Duplicate_identifier_0, ts.symbolName(prototypeSymbol)));
+            }
+            symbol.exports.set(prototypeSymbol.escapedName, prototypeSymbol);
+            prototypeSymbol.parent = symbol;
+        }
+        function bindEnumDeclaration(node) {
+            return ts.isEnumConst(node)
+                ? bindBlockScopedDeclaration(node, 128, 899967)
+                : bindBlockScopedDeclaration(node, 256, 899327);
+        }
+        function bindVariableDeclarationOrBindingElement(node) {
+            if (inStrictMode) {
+                checkStrictModeEvalOrArguments(node, node.name);
+            }
+            if (!ts.isBindingPattern(node.name)) {
+                if (ts.isBlockOrCatchScoped(node)) {
+                    bindBlockScopedDeclaration(node, 2, 111551);
+                }
+                else if (ts.isParameterDeclaration(node)) {
+                    declareSymbolAndAddToSymbolTable(node, 1, 111551);
+                }
+                else {
+                    declareSymbolAndAddToSymbolTable(node, 1, 111550);
+                }
+            }
+        }
+        function bindParameter(node) {
+            if (node.kind === 317 && container.kind !== 305) {
+                return;
+            }
+            if (inStrictMode && !(node.flags & 8388608)) {
+                checkStrictModeEvalOrArguments(node, node.name);
+            }
+            if (ts.isBindingPattern(node.name)) {
+                bindAnonymousDeclaration(node, 1, "__" + node.parent.parameters.indexOf(node));
+            }
+            else {
+                declareSymbolAndAddToSymbolTable(node, 1, 111551);
+            }
+            if (ts.isParameterPropertyDeclaration(node, node.parent)) {
+                var classDeclaration = node.parent.parent;
+                declareSymbol(classDeclaration.symbol.members, classDeclaration.symbol, node, 4 | (node.questionToken ? 16777216 : 0), 0);
+            }
+        }
+        function bindFunctionDeclaration(node) {
+            if (!file.isDeclarationFile && !(node.flags & 8388608)) {
+                if (ts.isAsyncFunction(node)) {
+                    emitFlags |= 2048;
+                }
+            }
+            checkStrictModeFunctionName(node);
+            if (inStrictMode) {
+                checkStrictModeFunctionDeclaration(node);
+                bindBlockScopedDeclaration(node, 16, 110991);
+            }
+            else {
+                declareSymbolAndAddToSymbolTable(node, 16, 110991);
+            }
+        }
+        function bindFunctionExpression(node) {
+            if (!file.isDeclarationFile && !(node.flags & 8388608)) {
+                if (ts.isAsyncFunction(node)) {
+                    emitFlags |= 2048;
+                }
+            }
+            if (currentFlow) {
+                node.flowNode = currentFlow;
+            }
+            checkStrictModeFunctionName(node);
+            var bindingName = node.name ? node.name.escapedText : "__function";
+            return bindAnonymousDeclaration(node, 16, bindingName);
+        }
+        function bindPropertyOrMethodOrAccessor(node, symbolFlags, symbolExcludes) {
+            if (!file.isDeclarationFile && !(node.flags & 8388608) && ts.isAsyncFunction(node)) {
+                emitFlags |= 2048;
+            }
+            if (currentFlow && ts.isObjectLiteralOrClassExpressionMethod(node)) {
+                node.flowNode = currentFlow;
+            }
+            return ts.hasDynamicName(node)
+                ? bindAnonymousDeclaration(node, symbolFlags, "__computed")
+                : declareSymbolAndAddToSymbolTable(node, symbolFlags, symbolExcludes);
+        }
+        function getInferTypeContainer(node) {
+            var extendsType = ts.findAncestor(node, function (n) { return n.parent && ts.isConditionalTypeNode(n.parent) && n.parent.extendsType === n; });
+            return extendsType && extendsType.parent;
+        }
+        function bindTypeParameter(node) {
+            if (ts.isJSDocTemplateTag(node.parent)) {
+                var container_1 = ts.find(node.parent.parent.tags, ts.isJSDocTypeAlias) || ts.getHostSignatureFromJSDoc(node.parent);
+                if (container_1) {
+                    if (!container_1.locals) {
+                        container_1.locals = ts.createSymbolTable();
+                    }
+                    declareSymbol(container_1.locals, undefined, node, 262144, 526824);
+                }
+                else {
+                    declareSymbolAndAddToSymbolTable(node, 262144, 526824);
+                }
+            }
+            else if (node.parent.kind === 181) {
+                var container_2 = getInferTypeContainer(node.parent);
+                if (container_2) {
+                    if (!container_2.locals) {
+                        container_2.locals = ts.createSymbolTable();
+                    }
+                    declareSymbol(container_2.locals, undefined, node, 262144, 526824);
+                }
+                else {
+                    bindAnonymousDeclaration(node, 262144, getDeclarationName(node));
+                }
+            }
+            else {
+                declareSymbolAndAddToSymbolTable(node, 262144, 526824);
+            }
+        }
+        function shouldReportErrorOnModuleDeclaration(node) {
+            var instanceState = getModuleInstanceState(node);
+            return instanceState === 1 || (instanceState === 2 && !!options.preserveConstEnums);
+        }
+        function checkUnreachable(node) {
+            if (!(currentFlow.flags & 1)) {
+                return false;
+            }
+            if (currentFlow === unreachableFlow) {
+                var reportError = (ts.isStatementButNotDeclaration(node) && node.kind !== 224) ||
+                    node.kind === 245 ||
+                    (node.kind === 249 && shouldReportErrorOnModuleDeclaration(node));
+                if (reportError) {
+                    currentFlow = reportedUnreachableFlow;
+                    if (!options.allowUnreachableCode) {
+                        var isError_1 = ts.unreachableCodeIsError(options) &&
+                            !(node.flags & 8388608) &&
+                            (!ts.isVariableStatement(node) ||
+                                !!(ts.getCombinedNodeFlags(node.declarationList) & 3) ||
+                                node.declarationList.declarations.some(function (d) { return !!d.initializer; }));
+                        eachUnreachableRange(node, function (start, end) { return errorOrSuggestionOnRange(isError_1, start, end, ts.Diagnostics.Unreachable_code_detected); });
+                    }
+                }
+            }
+            return true;
+        }
+    }
+    function eachUnreachableRange(node, cb) {
+        if (ts.isStatement(node) && isExecutableStatement(node) && ts.isBlock(node.parent)) {
+            var statements = node.parent.statements;
+            var slice_1 = ts.sliceAfter(statements, node);
+            ts.getRangesWhere(slice_1, isExecutableStatement, function (start, afterEnd) { return cb(slice_1[start], slice_1[afterEnd - 1]); });
+        }
+        else {
+            cb(node, node);
+        }
+    }
+    function isExecutableStatement(s) {
+        return !ts.isFunctionDeclaration(s) && !isPurelyTypeDeclaration(s) && !ts.isEnumDeclaration(s) &&
+            !(ts.isVariableStatement(s) && !(ts.getCombinedNodeFlags(s) & (1 | 2)) && s.declarationList.declarations.some(function (d) { return !d.initializer; }));
+    }
+    function isPurelyTypeDeclaration(s) {
+        switch (s.kind) {
+            case 246:
+            case 247:
+                return true;
+            case 249:
+                return getModuleInstanceState(s) !== 1;
+            case 248:
+                return ts.hasModifier(s, 2048);
+            default:
+                return false;
+        }
+    }
+    function isExportsOrModuleExportsOrAlias(sourceFile, node) {
+        var i = 0;
+        var q = [node];
+        while (q.length && i < 100) {
+            i++;
+            node = q.shift();
+            if (ts.isExportsIdentifier(node) || ts.isModuleExportsAccessExpression(node)) {
+                return true;
+            }
+            else if (ts.isIdentifier(node)) {
+                var symbol = lookupSymbolForNameWorker(sourceFile, node.escapedText);
+                if (!!symbol && !!symbol.valueDeclaration && ts.isVariableDeclaration(symbol.valueDeclaration) && !!symbol.valueDeclaration.initializer) {
+                    var init = symbol.valueDeclaration.initializer;
+                    q.push(init);
+                    if (ts.isAssignmentExpression(init, true)) {
+                        q.push(init.left);
+                        q.push(init.right);
+                    }
+                }
+            }
+        }
+        return false;
+    }
+    ts.isExportsOrModuleExportsOrAlias = isExportsOrModuleExportsOrAlias;
+    function lookupSymbolForNameWorker(container, name) {
+        var local = container.locals && container.locals.get(name);
+        if (local) {
+            return local.exportSymbol || local;
+        }
+        if (ts.isSourceFile(container) && container.jsGlobalAugmentations && container.jsGlobalAugmentations.has(name)) {
+            return container.jsGlobalAugmentations.get(name);
+        }
+        return container.symbol && container.symbol.exports && container.symbol.exports.get(name);
+    }
+    function computeTransformFlagsForNode(node, subtreeFlags) {
+        var kind = node.kind;
+        switch (kind) {
+            case 196:
+                return computeCallExpression(node, subtreeFlags);
+            case 197:
+                return computeNewExpression(node, subtreeFlags);
+            case 249:
+                return computeModuleDeclaration(node, subtreeFlags);
+            case 200:
+                return computeParenthesizedExpression(node, subtreeFlags);
+            case 209:
+                return computeBinaryExpression(node, subtreeFlags);
+            case 226:
+                return computeExpressionStatement(node, subtreeFlags);
+            case 156:
+                return computeParameter(node, subtreeFlags);
+            case 202:
+                return computeArrowFunction(node, subtreeFlags);
+            case 201:
+                return computeFunctionExpression(node, subtreeFlags);
+            case 244:
+                return computeFunctionDeclaration(node, subtreeFlags);
+            case 242:
+                return computeVariableDeclaration(node, subtreeFlags);
+            case 243:
+                return computeVariableDeclarationList(node, subtreeFlags);
+            case 225:
+                return computeVariableStatement(node, subtreeFlags);
+            case 238:
+                return computeLabeledStatement(node, subtreeFlags);
+            case 245:
+                return computeClassDeclaration(node, subtreeFlags);
+            case 214:
+                return computeClassExpression(node, subtreeFlags);
+            case 279:
+                return computeHeritageClause(node, subtreeFlags);
+            case 280:
+                return computeCatchClause(node, subtreeFlags);
+            case 216:
+                return computeExpressionWithTypeArguments(node, subtreeFlags);
+            case 162:
+                return computeConstructor(node, subtreeFlags);
+            case 159:
+                return computePropertyDeclaration(node, subtreeFlags);
+            case 161:
+                return computeMethod(node, subtreeFlags);
+            case 163:
+            case 164:
+                return computeAccessor(node, subtreeFlags);
+            case 253:
+                return computeImportEquals(node, subtreeFlags);
+            case 194:
+                return computePropertyAccess(node, subtreeFlags);
+            case 195:
+                return computeElementAccess(node, subtreeFlags);
+            case 267:
+            case 268:
+                return computeJsxOpeningLikeElement(node, subtreeFlags);
+            default:
+                return computeOther(node, kind, subtreeFlags);
+        }
+    }
+    ts.computeTransformFlagsForNode = computeTransformFlagsForNode;
+    function computeCallExpression(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        var callee = ts.skipOuterExpressions(node.expression);
+        var expression = node.expression;
+        if (node.flags & 32) {
+            transformFlags |= 8;
+        }
+        if (node.typeArguments) {
+            transformFlags |= 1;
+        }
+        if (subtreeFlags & 8192 || ts.isSuperOrSuperProperty(callee)) {
+            transformFlags |= 256;
+            if (ts.isSuperProperty(callee)) {
+                transformFlags |= 4096;
+            }
+        }
+        if (expression.kind === 96) {
+            transformFlags |= 2097152;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536879104;
+    }
+    function computeNewExpression(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        if (node.typeArguments) {
+            transformFlags |= 1;
+        }
+        if (subtreeFlags & 8192) {
+            transformFlags |= 256;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536879104;
+    }
+    function computeJsxOpeningLikeElement(node, subtreeFlags) {
+        var transformFlags = subtreeFlags | 2;
+        if (node.typeArguments) {
+            transformFlags |= 1;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536870912;
+    }
+    function computeBinaryExpression(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        var operatorTokenKind = node.operatorToken.kind;
+        var leftKind = node.left.kind;
+        if (operatorTokenKind === 60) {
+            transformFlags |= 8;
+        }
+        else if (operatorTokenKind === 62 && leftKind === 193) {
+            transformFlags |= 32 | 256 | 1024;
+        }
+        else if (operatorTokenKind === 62 && leftKind === 192) {
+            transformFlags |= 256 | 1024;
+        }
+        else if (operatorTokenKind === 42
+            || operatorTokenKind === 66) {
+            transformFlags |= 128;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536870912;
+    }
+    function computeParameter(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        var name = node.name;
+        var initializer = node.initializer;
+        var dotDotDotToken = node.dotDotDotToken;
+        if (node.questionToken
+            || node.type
+            || (subtreeFlags & 2048 && ts.some(node.decorators))
+            || ts.isThisIdentifier(name)) {
+            transformFlags |= 1;
+        }
+        if (ts.hasModifier(node, 92)) {
+            transformFlags |= 1 | 2048;
+        }
+        if (subtreeFlags & 16384) {
+            transformFlags |= 32;
+        }
+        if (subtreeFlags & 131072 || initializer || dotDotDotToken) {
+            transformFlags |= 256;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536870912;
+    }
+    function computeParenthesizedExpression(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        var expression = node.expression;
+        var expressionKind = expression.kind;
+        if (expressionKind === 217
+            || expressionKind === 199) {
+            transformFlags |= 1;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536870912;
+    }
+    function computeClassDeclaration(node, subtreeFlags) {
+        var transformFlags;
+        if (ts.hasModifier(node, 2)) {
+            transformFlags = 1;
+        }
+        else {
+            transformFlags = subtreeFlags | 256;
+            if ((subtreeFlags & 2048)
+                || node.typeParameters) {
+                transformFlags |= 1;
+            }
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536905728;
+    }
+    function computeClassExpression(node, subtreeFlags) {
+        var transformFlags = subtreeFlags | 256;
+        if (subtreeFlags & 2048
+            || node.typeParameters) {
+            transformFlags |= 1;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536905728;
+    }
+    function computeHeritageClause(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        switch (node.token) {
+            case 90:
+                transformFlags |= 256;
+                break;
+            case 113:
+                transformFlags |= 1;
+                break;
+            default:
+                ts.Debug.fail("Unexpected token for heritage clause");
+                break;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536870912;
+    }
+    function computeCatchClause(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        if (!node.variableDeclaration) {
+            transformFlags |= 16;
+        }
+        else if (ts.isBindingPattern(node.variableDeclaration.name)) {
+            transformFlags |= 256;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536887296;
+    }
+    function computeExpressionWithTypeArguments(node, subtreeFlags) {
+        var transformFlags = subtreeFlags | 256;
+        if (node.typeArguments) {
+            transformFlags |= 1;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536870912;
+    }
+    function computeConstructor(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        if (ts.hasModifier(node, 2270)
+            || !node.body) {
+            transformFlags |= 1;
+        }
+        if (subtreeFlags & 16384) {
+            transformFlags |= 32;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~538923008;
+    }
+    function computeMethod(node, subtreeFlags) {
+        var transformFlags = subtreeFlags | 256;
+        if (node.decorators
+            || ts.hasModifier(node, 2270)
+            || node.typeParameters
+            || node.type
+            || !node.body
+            || node.questionToken) {
+            transformFlags |= 1;
+        }
+        if (subtreeFlags & 16384) {
+            transformFlags |= 32;
+        }
+        if (ts.hasModifier(node, 256)) {
+            transformFlags |= node.asteriskToken ? 32 : 64;
+        }
+        if (node.asteriskToken) {
+            transformFlags |= 512;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return propagatePropertyNameFlags(node.name, transformFlags & ~538923008);
+    }
+    function computeAccessor(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        if (node.decorators
+            || ts.hasModifier(node, 2270)
+            || node.type
+            || !node.body) {
+            transformFlags |= 1;
+        }
+        if (subtreeFlags & 16384) {
+            transformFlags |= 32;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return propagatePropertyNameFlags(node.name, transformFlags & ~538923008);
+    }
+    function computePropertyDeclaration(node, subtreeFlags) {
+        var transformFlags = subtreeFlags | 4194304;
+        if (ts.some(node.decorators) || ts.hasModifier(node, 2270) || node.type || node.questionToken || node.exclamationToken) {
+            transformFlags |= 1;
+        }
+        if (ts.isComputedPropertyName(node.name) || (ts.hasStaticModifier(node) && node.initializer)) {
+            transformFlags |= 2048;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return propagatePropertyNameFlags(node.name, transformFlags & ~536875008);
+    }
+    function computeFunctionDeclaration(node, subtreeFlags) {
+        var transformFlags;
+        var modifierFlags = ts.getModifierFlags(node);
+        var body = node.body;
+        if (!body || (modifierFlags & 2)) {
+            transformFlags = 1;
+        }
+        else {
+            transformFlags = subtreeFlags | 1048576;
+            if (modifierFlags & 2270
+                || node.typeParameters
+                || node.type) {
+                transformFlags |= 1;
+            }
+            if (modifierFlags & 256) {
+                transformFlags |= node.asteriskToken ? 32 : 64;
+            }
+            if (subtreeFlags & 16384) {
+                transformFlags |= 32;
+            }
+            if (node.asteriskToken) {
+                transformFlags |= 512;
+            }
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~538925056;
+    }
+    function computeFunctionExpression(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        if (ts.hasModifier(node, 2270)
+            || node.typeParameters
+            || node.type) {
+            transformFlags |= 1;
+        }
+        if (ts.hasModifier(node, 256)) {
+            transformFlags |= node.asteriskToken ? 32 : 64;
+        }
+        if (subtreeFlags & 16384) {
+            transformFlags |= 32;
+        }
+        if (node.asteriskToken) {
+            transformFlags |= 512;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~538925056;
+    }
+    function computeArrowFunction(node, subtreeFlags) {
+        var transformFlags = subtreeFlags | 256;
+        if (ts.hasModifier(node, 2270)
+            || node.typeParameters
+            || node.type) {
+            transformFlags |= 1;
+        }
+        if (ts.hasModifier(node, 256)) {
+            transformFlags |= 64;
+        }
+        if (subtreeFlags & 16384) {
+            transformFlags |= 32;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~538920960;
+    }
+    function computePropertyAccess(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        if (node.flags & 32) {
+            transformFlags |= 8;
+        }
+        if (node.expression.kind === 102) {
+            transformFlags |= 64 | 32;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536870912;
+    }
+    function computeElementAccess(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        if (node.flags & 32) {
+            transformFlags |= 8;
+        }
+        if (node.expression.kind === 102) {
+            transformFlags |= 64 | 32;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536870912;
+    }
+    function computeVariableDeclaration(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        transformFlags |= 256 | 131072;
+        if (subtreeFlags & 16384) {
+            transformFlags |= 32;
+        }
+        if (node.type || node.exclamationToken) {
+            transformFlags |= 1;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536870912;
+    }
+    function computeVariableStatement(node, subtreeFlags) {
+        var transformFlags;
+        var declarationListTransformFlags = node.declarationList.transformFlags;
+        if (ts.hasModifier(node, 2)) {
+            transformFlags = 1;
+        }
+        else {
+            transformFlags = subtreeFlags;
+            if (declarationListTransformFlags & 131072) {
+                transformFlags |= 256;
+            }
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536870912;
+    }
+    function computeLabeledStatement(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        if (subtreeFlags & 65536
+            && ts.isIterationStatement(node, true)) {
+            transformFlags |= 256;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536870912;
+    }
+    function computeImportEquals(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        if (!ts.isExternalModuleImportEqualsDeclaration(node)) {
+            transformFlags |= 1;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536870912;
+    }
+    function computeExpressionStatement(node, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~536870912;
+    }
+    function computeModuleDeclaration(node, subtreeFlags) {
+        var transformFlags = 1;
+        var modifierFlags = ts.getModifierFlags(node);
+        if ((modifierFlags & 2) === 0) {
+            transformFlags |= subtreeFlags;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~537991168;
+    }
+    function computeVariableDeclarationList(node, subtreeFlags) {
+        var transformFlags = subtreeFlags | 1048576;
+        if (subtreeFlags & 131072) {
+            transformFlags |= 256;
+        }
+        if (node.flags & 3) {
+            transformFlags |= 256 | 65536;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~537018368;
+    }
+    function computeOther(node, kind, subtreeFlags) {
+        var transformFlags = subtreeFlags;
+        var excludeFlags = 536870912;
+        switch (kind) {
+            case 126:
+                transformFlags |= 32 | 64;
+                break;
+            case 206:
+                transformFlags |= 32 | 64 | 524288;
+                break;
+            case 199:
+            case 217:
+            case 326:
+                transformFlags |= 1;
+                excludeFlags = 536870912;
+                break;
+            case 119:
+            case 117:
+            case 118:
+            case 122:
+            case 130:
+            case 81:
+            case 248:
+            case 284:
+            case 218:
+            case 138:
+                transformFlags |= 1;
+                break;
+            case 266:
+            case 11:
+            case 269:
+            case 270:
+            case 271:
+            case 272:
+            case 273:
+            case 274:
+            case 275:
+            case 276:
+                transformFlags |= 2;
+                break;
+            case 14:
+            case 15:
+            case 16:
+            case 17:
+                if (node.templateFlags) {
+                    transformFlags |= 32;
+                    break;
+                }
+            case 198:
+                if (ts.hasInvalidEscape(node.template)) {
+                    transformFlags |= 32;
+                    break;
+                }
+            case 211:
+            case 282:
+            case 120:
+            case 219:
+                transformFlags |= 256;
+                break;
+            case 10:
+                if (node.hasExtendedUnicodeEscape) {
+                    transformFlags |= 256;
+                }
+                break;
+            case 8:
+                if (node.numericLiteralFlags & 384) {
+                    transformFlags |= 256;
+                }
+                break;
+            case 9:
+                transformFlags |= 4;
+                break;
+            case 232:
+                if (node.awaitModifier) {
+                    transformFlags |= 32;
+                }
+                transformFlags |= 256;
+                break;
+            case 212:
+                transformFlags |= 32 | 256 | 262144;
+                break;
+            case 125:
+            case 140:
+            case 151:
+            case 137:
+            case 141:
+            case 143:
+            case 128:
+            case 144:
+            case 110:
+            case 155:
+            case 158:
+            case 160:
+            case 165:
+            case 166:
+            case 167:
+            case 168:
+            case 169:
+            case 170:
+            case 171:
+            case 172:
+            case 173:
+            case 174:
+            case 175:
+            case 176:
+            case 177:
+            case 178:
+            case 179:
+            case 180:
+            case 181:
+            case 182:
+            case 246:
+            case 247:
+            case 183:
+            case 184:
+            case 185:
+            case 186:
+            case 187:
+            case 252:
+                transformFlags = 1;
+                excludeFlags = -2;
+                break;
+            case 154:
+                transformFlags |= 32768;
+                break;
+            case 213:
+                transformFlags |= 256 | 8192;
+                break;
+            case 283:
+                transformFlags |= 32 | 16384;
+                break;
+            case 102:
+                transformFlags |= 256;
+                excludeFlags = 536870912;
+                break;
+            case 104:
+                transformFlags |= 4096;
+                break;
+            case 189:
+                transformFlags |= 256 | 131072;
+                if (subtreeFlags & 8192) {
+                    transformFlags |= 32 | 16384;
+                }
+                excludeFlags = 536879104;
+                break;
+            case 190:
+                transformFlags |= 256 | 131072;
+                excludeFlags = 536879104;
+                break;
+            case 191:
+                transformFlags |= 256;
+                if (node.dotDotDotToken) {
+                    transformFlags |= 8192;
+                }
+                break;
+            case 157:
+                transformFlags |= 1 | 2048;
+                break;
+            case 193:
+                excludeFlags = 536922112;
+                if (subtreeFlags & 32768) {
+                    transformFlags |= 256;
+                }
+                if (subtreeFlags & 16384) {
+                    transformFlags |= 32;
+                }
+                break;
+            case 192:
+                excludeFlags = 536879104;
+                break;
+            case 228:
+            case 229:
+            case 230:
+            case 231:
+                if (subtreeFlags & 65536) {
+                    transformFlags |= 256;
+                }
+                break;
+            case 290:
+                break;
+            case 262:
+                transformFlags |= 4;
+                break;
+            case 235:
+                transformFlags |= 1048576 | 32;
+                break;
+            case 233:
+            case 234:
+                transformFlags |= 1048576;
+                break;
+            case 76:
+                transformFlags |= 4194304;
+                break;
+        }
+        node.transformFlags = transformFlags | 536870912;
+        return transformFlags & ~excludeFlags;
+    }
+    function propagatePropertyNameFlags(node, transformFlags) {
+        return transformFlags | (node.transformFlags & 4096);
+    }
+    function getTransformFlagsSubtreeExclusions(kind) {
+        if (kind >= 168 && kind <= 188) {
+            return -2;
+        }
+        switch (kind) {
+            case 196:
+            case 197:
+            case 192:
+                return 536879104;
+            case 249:
+                return 537991168;
+            case 156:
+                return 536870912;
+            case 202:
+                return 538920960;
+            case 201:
+            case 244:
+                return 538925056;
+            case 243:
+                return 537018368;
+            case 245:
+            case 214:
+                return 536905728;
+            case 162:
+                return 538923008;
+            case 161:
+            case 163:
+            case 164:
+                return 538923008;
+            case 125:
+            case 140:
+            case 151:
+            case 137:
+            case 143:
+            case 141:
+            case 128:
+            case 144:
+            case 110:
+            case 155:
+            case 158:
+            case 160:
+            case 165:
+            case 166:
+            case 167:
+            case 246:
+            case 247:
+                return -2;
+            case 193:
+                return 536922112;
+            case 280:
+                return 536887296;
+            case 189:
+            case 190:
+                return 536879104;
+            case 199:
+            case 217:
+            case 326:
+            case 200:
+            case 102:
+                return 536870912;
+            case 194:
+            case 195:
+                return 536870912;
+            default:
+                return 536870912;
+        }
+    }
+    ts.getTransformFlagsSubtreeExclusions = getTransformFlagsSubtreeExclusions;
+    function setParentPointers(parent, child) {
+        child.parent = parent;
+        ts.forEachChild(child, function (grandchild) { return setParentPointers(child, grandchild); });
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function createGetSymbolWalker(getRestTypeOfSignature, getTypePredicateOfSignature, getReturnTypeOfSignature, getBaseTypes, resolveStructuredTypeMembers, getTypeOfSymbol, getResolvedSymbol, getIndexTypeOfStructuredType, getConstraintOfTypeParameter, getFirstIdentifier, getTypeArguments) {
+        return getSymbolWalker;
+        function getSymbolWalker(accept) {
+            if (accept === void 0) { accept = function () { return true; }; }
+            var visitedTypes = [];
+            var visitedSymbols = [];
+            return {
+                walkType: function (type) {
+                    try {
+                        visitType(type);
+                        return { visitedTypes: ts.getOwnValues(visitedTypes), visitedSymbols: ts.getOwnValues(visitedSymbols) };
+                    }
+                    finally {
+                        ts.clear(visitedTypes);
+                        ts.clear(visitedSymbols);
+                    }
+                },
+                walkSymbol: function (symbol) {
+                    try {
+                        visitSymbol(symbol);
+                        return { visitedTypes: ts.getOwnValues(visitedTypes), visitedSymbols: ts.getOwnValues(visitedSymbols) };
+                    }
+                    finally {
+                        ts.clear(visitedTypes);
+                        ts.clear(visitedSymbols);
+                    }
+                },
+            };
+            function visitType(type) {
+                if (!type) {
+                    return;
+                }
+                if (visitedTypes[type.id]) {
+                    return;
+                }
+                visitedTypes[type.id] = type;
+                var shouldBail = visitSymbol(type.symbol);
+                if (shouldBail)
+                    return;
+                if (type.flags & 524288) {
+                    var objectType = type;
+                    var objectFlags = objectType.objectFlags;
+                    if (objectFlags & 4) {
+                        visitTypeReference(type);
+                    }
+                    if (objectFlags & 32) {
+                        visitMappedType(type);
+                    }
+                    if (objectFlags & (1 | 2)) {
+                        visitInterfaceType(type);
+                    }
+                    if (objectFlags & (8 | 16)) {
+                        visitObjectType(objectType);
+                    }
+                }
+                if (type.flags & 262144) {
+                    visitTypeParameter(type);
+                }
+                if (type.flags & 3145728) {
+                    visitUnionOrIntersectionType(type);
+                }
+                if (type.flags & 4194304) {
+                    visitIndexType(type);
+                }
+                if (type.flags & 8388608) {
+                    visitIndexedAccessType(type);
+                }
+            }
+            function visitTypeReference(type) {
+                visitType(type.target);
+                ts.forEach(getTypeArguments(type), visitType);
+            }
+            function visitTypeParameter(type) {
+                visitType(getConstraintOfTypeParameter(type));
+            }
+            function visitUnionOrIntersectionType(type) {
+                ts.forEach(type.types, visitType);
+            }
+            function visitIndexType(type) {
+                visitType(type.type);
+            }
+            function visitIndexedAccessType(type) {
+                visitType(type.objectType);
+                visitType(type.indexType);
+                visitType(type.constraint);
+            }
+            function visitMappedType(type) {
+                visitType(type.typeParameter);
+                visitType(type.constraintType);
+                visitType(type.templateType);
+                visitType(type.modifiersType);
+            }
+            function visitSignature(signature) {
+                var typePredicate = getTypePredicateOfSignature(signature);
+                if (typePredicate) {
+                    visitType(typePredicate.type);
+                }
+                ts.forEach(signature.typeParameters, visitType);
+                for (var _i = 0, _a = signature.parameters; _i < _a.length; _i++) {
+                    var parameter = _a[_i];
+                    visitSymbol(parameter);
+                }
+                visitType(getRestTypeOfSignature(signature));
+                visitType(getReturnTypeOfSignature(signature));
+            }
+            function visitInterfaceType(interfaceT) {
+                visitObjectType(interfaceT);
+                ts.forEach(interfaceT.typeParameters, visitType);
+                ts.forEach(getBaseTypes(interfaceT), visitType);
+                visitType(interfaceT.thisType);
+            }
+            function visitObjectType(type) {
+                var stringIndexType = getIndexTypeOfStructuredType(type, 0);
+                visitType(stringIndexType);
+                var numberIndexType = getIndexTypeOfStructuredType(type, 1);
+                visitType(numberIndexType);
+                var resolved = resolveStructuredTypeMembers(type);
+                for (var _i = 0, _a = resolved.callSignatures; _i < _a.length; _i++) {
+                    var signature = _a[_i];
+                    visitSignature(signature);
+                }
+                for (var _b = 0, _c = resolved.constructSignatures; _b < _c.length; _b++) {
+                    var signature = _c[_b];
+                    visitSignature(signature);
+                }
+                for (var _d = 0, _e = resolved.properties; _d < _e.length; _d++) {
+                    var p = _e[_d];
+                    visitSymbol(p);
+                }
+            }
+            function visitSymbol(symbol) {
+                if (!symbol) {
+                    return false;
+                }
+                var symbolId = ts.getSymbolId(symbol);
+                if (visitedSymbols[symbolId]) {
+                    return false;
+                }
+                visitedSymbols[symbolId] = symbol;
+                if (!accept(symbol)) {
+                    return true;
+                }
+                var t = getTypeOfSymbol(symbol);
+                visitType(t);
+                if (symbol.exports) {
+                    symbol.exports.forEach(visitSymbol);
+                }
+                ts.forEach(symbol.declarations, function (d) {
+                    if (d.type && d.type.kind === 172) {
+                        var query = d.type;
+                        var entity = getResolvedSymbol(getFirstIdentifier(query.exprName));
+                        visitSymbol(entity);
+                    }
+                });
+                return false;
+            }
+        }
+    }
+    ts.createGetSymbolWalker = createGetSymbolWalker;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var ambientModuleSymbolRegex = /^".+"$/;
+    var anon = "(anonymous)";
+    var nextSymbolId = 1;
+    var nextNodeId = 1;
+    var nextMergeId = 1;
+    var nextFlowId = 1;
+    var typeofEQFacts = ts.createMapFromTemplate({
+        string: 1,
+        number: 2,
+        bigint: 4,
+        boolean: 8,
+        symbol: 16,
+        undefined: 65536,
+        object: 32,
+        function: 64
+    });
+    var typeofNEFacts = ts.createMapFromTemplate({
+        string: 256,
+        number: 512,
+        bigint: 1024,
+        boolean: 2048,
+        symbol: 4096,
+        undefined: 524288,
+        object: 8192,
+        function: 16384
+    });
+    var isNotOverloadAndNotAccessor = ts.and(isNotOverload, isNotAccessor);
+    function SymbolLinks() {
+    }
+    function NodeLinks() {
+        this.flags = 0;
+    }
+    function getNodeId(node) {
+        if (!node.id) {
+            node.id = nextNodeId;
+            nextNodeId++;
+        }
+        return node.id;
+    }
+    ts.getNodeId = getNodeId;
+    function getSymbolId(symbol) {
+        if (!symbol.id) {
+            symbol.id = nextSymbolId;
+            nextSymbolId++;
+        }
+        return symbol.id;
+    }
+    ts.getSymbolId = getSymbolId;
+    function isInstantiatedModule(node, preserveConstEnums) {
+        var moduleState = ts.getModuleInstanceState(node);
+        return moduleState === 1 ||
+            (preserveConstEnums && moduleState === 2);
+    }
+    ts.isInstantiatedModule = isInstantiatedModule;
+    function createTypeChecker(host, produceDiagnostics) {
+        var getPackagesSet = ts.memoize(function () {
+            var set = ts.createMap();
+            host.getSourceFiles().forEach(function (sf) {
+                if (!sf.resolvedModules)
+                    return;
+                ts.forEachEntry(sf.resolvedModules, function (r) {
+                    if (r && r.packageId)
+                        set.set(r.packageId.name, true);
+                });
+            });
+            return set;
+        });
+        var cancellationToken;
+        var requestedExternalEmitHelpers;
+        var externalHelpersModule;
+        var Symbol = ts.objectAllocator.getSymbolConstructor();
+        var Type = ts.objectAllocator.getTypeConstructor();
+        var Signature = ts.objectAllocator.getSignatureConstructor();
+        var typeCount = 0;
+        var symbolCount = 0;
+        var enumCount = 0;
+        var totalInstantiationCount = 0;
+        var instantiationCount = 0;
+        var instantiationDepth = 0;
+        var constraintDepth = 0;
+        var currentNode;
+        var emptySymbols = ts.createSymbolTable();
+        var arrayVariances = [1];
+        var compilerOptions = host.getCompilerOptions();
+        var languageVersion = ts.getEmitScriptTarget(compilerOptions);
+        var moduleKind = ts.getEmitModuleKind(compilerOptions);
+        var allowSyntheticDefaultImports = ts.getAllowSyntheticDefaultImports(compilerOptions);
+        var strictNullChecks = ts.getStrictOptionValue(compilerOptions, "strictNullChecks");
+        var strictFunctionTypes = ts.getStrictOptionValue(compilerOptions, "strictFunctionTypes");
+        var strictBindCallApply = ts.getStrictOptionValue(compilerOptions, "strictBindCallApply");
+        var strictPropertyInitialization = ts.getStrictOptionValue(compilerOptions, "strictPropertyInitialization");
+        var noImplicitAny = ts.getStrictOptionValue(compilerOptions, "noImplicitAny");
+        var noImplicitThis = ts.getStrictOptionValue(compilerOptions, "noImplicitThis");
+        var keyofStringsOnly = !!compilerOptions.keyofStringsOnly;
+        var freshObjectLiteralFlag = compilerOptions.suppressExcessPropertyErrors ? 0 : 32768;
+        var emitResolver = createResolver();
+        var nodeBuilder = createNodeBuilder();
+        var globals = ts.createSymbolTable();
+        var undefinedSymbol = createSymbol(4, "undefined");
+        undefinedSymbol.declarations = [];
+        var globalThisSymbol = createSymbol(1536, "globalThis", 8);
+        globalThisSymbol.exports = globals;
+        globalThisSymbol.declarations = [];
+        globals.set(globalThisSymbol.escapedName, globalThisSymbol);
+        var argumentsSymbol = createSymbol(4, "arguments");
+        var requireSymbol = createSymbol(4, "require");
+        var apparentArgumentCount;
+        var checker = {
+            getNodeCount: function () { return ts.sum(host.getSourceFiles(), "nodeCount"); },
+            getIdentifierCount: function () { return ts.sum(host.getSourceFiles(), "identifierCount"); },
+            getSymbolCount: function () { return ts.sum(host.getSourceFiles(), "symbolCount") + symbolCount; },
+            getTypeCount: function () { return typeCount; },
+            getInstantiationCount: function () { return totalInstantiationCount; },
+            getRelationCacheSizes: function () { return ({
+                assignable: assignableRelation.size,
+                identity: identityRelation.size,
+                subtype: subtypeRelation.size,
+                strictSubtype: strictSubtypeRelation.size,
+            }); },
+            isUndefinedSymbol: function (symbol) { return symbol === undefinedSymbol; },
+            isArgumentsSymbol: function (symbol) { return symbol === argumentsSymbol; },
+            isUnknownSymbol: function (symbol) { return symbol === unknownSymbol; },
+            getMergedSymbol: getMergedSymbol,
+            getDiagnostics: getDiagnostics,
+            getGlobalDiagnostics: getGlobalDiagnostics,
+            getTypeOfSymbolAtLocation: function (symbol, location) {
+                location = ts.getParseTreeNode(location);
+                return location ? getTypeOfSymbolAtLocation(symbol, location) : errorType;
+            },
+            getSymbolsOfParameterPropertyDeclaration: function (parameterIn, parameterName) {
+                var parameter = ts.getParseTreeNode(parameterIn, ts.isParameter);
+                if (parameter === undefined)
+                    return ts.Debug.fail("Cannot get symbols of a synthetic parameter that cannot be resolved to a parse-tree node.");
+                return getSymbolsOfParameterPropertyDeclaration(parameter, ts.escapeLeadingUnderscores(parameterName));
+            },
+            getDeclaredTypeOfSymbol: getDeclaredTypeOfSymbol,
+            getPropertiesOfType: getPropertiesOfType,
+            getPropertyOfType: function (type, name) { return getPropertyOfType(type, ts.escapeLeadingUnderscores(name)); },
+            getPrivateIdentifierPropertyOfType: function (leftType, name, location) {
+                var node = ts.getParseTreeNode(location);
+                if (!node) {
+                    return undefined;
+                }
+                var propName = ts.escapeLeadingUnderscores(name);
+                var lexicallyScopedIdentifier = lookupSymbolForPrivateIdentifierDeclaration(propName, node);
+                return lexicallyScopedIdentifier ? getPrivateIdentifierPropertyOfType(leftType, lexicallyScopedIdentifier) : undefined;
+            },
+            getTypeOfPropertyOfType: function (type, name) { return getTypeOfPropertyOfType(type, ts.escapeLeadingUnderscores(name)); },
+            getIndexInfoOfType: getIndexInfoOfType,
+            getSignaturesOfType: getSignaturesOfType,
+            getIndexTypeOfType: getIndexTypeOfType,
+            getBaseTypes: getBaseTypes,
+            getBaseTypeOfLiteralType: getBaseTypeOfLiteralType,
+            getWidenedType: getWidenedType,
+            getTypeFromTypeNode: function (nodeIn) {
+                var node = ts.getParseTreeNode(nodeIn, ts.isTypeNode);
+                return node ? getTypeFromTypeNode(node) : errorType;
+            },
+            getParameterType: getTypeAtPosition,
+            getPromisedTypeOfPromise: getPromisedTypeOfPromise,
+            getReturnTypeOfSignature: getReturnTypeOfSignature,
+            isNullableType: isNullableType,
+            getNullableType: getNullableType,
+            getNonNullableType: getNonNullableType,
+            getNonOptionalType: removeOptionalTypeMarker,
+            getTypeArguments: getTypeArguments,
+            typeToTypeNode: nodeBuilder.typeToTypeNode,
+            indexInfoToIndexSignatureDeclaration: nodeBuilder.indexInfoToIndexSignatureDeclaration,
+            signatureToSignatureDeclaration: nodeBuilder.signatureToSignatureDeclaration,
+            symbolToEntityName: nodeBuilder.symbolToEntityName,
+            symbolToExpression: nodeBuilder.symbolToExpression,
+            symbolToTypeParameterDeclarations: nodeBuilder.symbolToTypeParameterDeclarations,
+            symbolToParameterDeclaration: nodeBuilder.symbolToParameterDeclaration,
+            typeParameterToDeclaration: nodeBuilder.typeParameterToDeclaration,
+            getSymbolsInScope: function (location, meaning) {
+                location = ts.getParseTreeNode(location);
+                return location ? getSymbolsInScope(location, meaning) : [];
+            },
+            getSymbolAtLocation: function (node) {
+                node = ts.getParseTreeNode(node);
+                return node ? getSymbolAtLocation(node, true) : undefined;
+            },
+            getShorthandAssignmentValueSymbol: function (node) {
+                node = ts.getParseTreeNode(node);
+                return node ? getShorthandAssignmentValueSymbol(node) : undefined;
+            },
+            getExportSpecifierLocalTargetSymbol: function (nodeIn) {
+                var node = ts.getParseTreeNode(nodeIn, ts.isExportSpecifier);
+                return node ? getExportSpecifierLocalTargetSymbol(node) : undefined;
+            },
+            getExportSymbolOfSymbol: function (symbol) {
+                return getMergedSymbol(symbol.exportSymbol || symbol);
+            },
+            getTypeAtLocation: function (node) {
+                node = ts.getParseTreeNode(node);
+                return node ? getTypeOfNode(node) : errorType;
+            },
+            getTypeOfAssignmentPattern: function (nodeIn) {
+                var node = ts.getParseTreeNode(nodeIn, ts.isAssignmentPattern);
+                return node && getTypeOfAssignmentPattern(node) || errorType;
+            },
+            getPropertySymbolOfDestructuringAssignment: function (locationIn) {
+                var location = ts.getParseTreeNode(locationIn, ts.isIdentifier);
+                return location ? getPropertySymbolOfDestructuringAssignment(location) : undefined;
+            },
+            signatureToString: function (signature, enclosingDeclaration, flags, kind) {
+                return signatureToString(signature, ts.getParseTreeNode(enclosingDeclaration), flags, kind);
+            },
+            typeToString: function (type, enclosingDeclaration, flags) {
+                return typeToString(type, ts.getParseTreeNode(enclosingDeclaration), flags);
+            },
+            symbolToString: function (symbol, enclosingDeclaration, meaning, flags) {
+                return symbolToString(symbol, ts.getParseTreeNode(enclosingDeclaration), meaning, flags);
+            },
+            typePredicateToString: function (predicate, enclosingDeclaration, flags) {
+                return typePredicateToString(predicate, ts.getParseTreeNode(enclosingDeclaration), flags);
+            },
+            writeSignature: function (signature, enclosingDeclaration, flags, kind, writer) {
+                return signatureToString(signature, ts.getParseTreeNode(enclosingDeclaration), flags, kind, writer);
+            },
+            writeType: function (type, enclosingDeclaration, flags, writer) {
+                return typeToString(type, ts.getParseTreeNode(enclosingDeclaration), flags, writer);
+            },
+            writeSymbol: function (symbol, enclosingDeclaration, meaning, flags, writer) {
+                return symbolToString(symbol, ts.getParseTreeNode(enclosingDeclaration), meaning, flags, writer);
+            },
+            writeTypePredicate: function (predicate, enclosingDeclaration, flags, writer) {
+                return typePredicateToString(predicate, ts.getParseTreeNode(enclosingDeclaration), flags, writer);
+            },
+            getAugmentedPropertiesOfType: getAugmentedPropertiesOfType,
+            getRootSymbols: getRootSymbols,
+            getContextualType: function (nodeIn, contextFlags) {
+                var node = ts.getParseTreeNode(nodeIn, ts.isExpression);
+                if (!node) {
+                    return undefined;
+                }
+                var containingCall = ts.findAncestor(node, ts.isCallLikeExpression);
+                var containingCallResolvedSignature = containingCall && getNodeLinks(containingCall).resolvedSignature;
+                if (contextFlags & 4 && containingCall) {
+                    var toMarkSkip = node;
+                    do {
+                        getNodeLinks(toMarkSkip).skipDirectInference = true;
+                        toMarkSkip = toMarkSkip.parent;
+                    } while (toMarkSkip && toMarkSkip !== containingCall);
+                    getNodeLinks(containingCall).resolvedSignature = undefined;
+                }
+                var result = getContextualType(node, contextFlags);
+                if (contextFlags & 4 && containingCall) {
+                    var toMarkSkip = node;
+                    do {
+                        getNodeLinks(toMarkSkip).skipDirectInference = undefined;
+                        toMarkSkip = toMarkSkip.parent;
+                    } while (toMarkSkip && toMarkSkip !== containingCall);
+                    getNodeLinks(containingCall).resolvedSignature = containingCallResolvedSignature;
+                }
+                return result;
+            },
+            getContextualTypeForObjectLiteralElement: function (nodeIn) {
+                var node = ts.getParseTreeNode(nodeIn, ts.isObjectLiteralElementLike);
+                return node ? getContextualTypeForObjectLiteralElement(node) : undefined;
+            },
+            getContextualTypeForArgumentAtIndex: function (nodeIn, argIndex) {
+                var node = ts.getParseTreeNode(nodeIn, ts.isCallLikeExpression);
+                return node && getContextualTypeForArgumentAtIndex(node, argIndex);
+            },
+            getContextualTypeForJsxAttribute: function (nodeIn) {
+                var node = ts.getParseTreeNode(nodeIn, ts.isJsxAttributeLike);
+                return node && getContextualTypeForJsxAttribute(node);
+            },
+            isContextSensitive: isContextSensitive,
+            getFullyQualifiedName: getFullyQualifiedName,
+            getResolvedSignature: function (node, candidatesOutArray, argumentCount) {
+                return getResolvedSignatureWorker(node, candidatesOutArray, argumentCount, 0);
+            },
+            getResolvedSignatureForSignatureHelp: function (node, candidatesOutArray, argumentCount) {
+                return getResolvedSignatureWorker(node, candidatesOutArray, argumentCount, 16);
+            },
+            getExpandedParameters: getExpandedParameters,
+            hasEffectiveRestParameter: hasEffectiveRestParameter,
+            getConstantValue: function (nodeIn) {
+                var node = ts.getParseTreeNode(nodeIn, canHaveConstantValue);
+                return node ? getConstantValue(node) : undefined;
+            },
+            isValidPropertyAccess: function (nodeIn, propertyName) {
+                var node = ts.getParseTreeNode(nodeIn, ts.isPropertyAccessOrQualifiedNameOrImportTypeNode);
+                return !!node && isValidPropertyAccess(node, ts.escapeLeadingUnderscores(propertyName));
+            },
+            isValidPropertyAccessForCompletions: function (nodeIn, type, property) {
+                var node = ts.getParseTreeNode(nodeIn, ts.isPropertyAccessExpression);
+                return !!node && isValidPropertyAccessForCompletions(node, type, property);
+            },
+            getSignatureFromDeclaration: function (declarationIn) {
+                var declaration = ts.getParseTreeNode(declarationIn, ts.isFunctionLike);
+                return declaration ? getSignatureFromDeclaration(declaration) : undefined;
+            },
+            isImplementationOfOverload: function (node) {
+                var parsed = ts.getParseTreeNode(node, ts.isFunctionLike);
+                return parsed ? isImplementationOfOverload(parsed) : undefined;
+            },
+            getImmediateAliasedSymbol: getImmediateAliasedSymbol,
+            getAliasedSymbol: resolveAlias,
+            getEmitResolver: getEmitResolver,
+            getExportsOfModule: getExportsOfModuleAsArray,
+            getExportsAndPropertiesOfModule: getExportsAndPropertiesOfModule,
+            getSymbolWalker: ts.createGetSymbolWalker(getRestTypeOfSignature, getTypePredicateOfSignature, getReturnTypeOfSignature, getBaseTypes, resolveStructuredTypeMembers, getTypeOfSymbol, getResolvedSymbol, getIndexTypeOfStructuredType, getConstraintOfTypeParameter, ts.getFirstIdentifier, getTypeArguments),
+            getAmbientModules: getAmbientModules,
+            getJsxIntrinsicTagNamesAt: getJsxIntrinsicTagNamesAt,
+            isOptionalParameter: function (nodeIn) {
+                var node = ts.getParseTreeNode(nodeIn, ts.isParameter);
+                return node ? isOptionalParameter(node) : false;
+            },
+            tryGetMemberInModuleExports: function (name, symbol) { return tryGetMemberInModuleExports(ts.escapeLeadingUnderscores(name), symbol); },
+            tryGetMemberInModuleExportsAndProperties: function (name, symbol) { return tryGetMemberInModuleExportsAndProperties(ts.escapeLeadingUnderscores(name), symbol); },
+            tryFindAmbientModuleWithoutAugmentations: function (moduleName) {
+                return tryFindAmbientModule(moduleName, false);
+            },
+            getApparentType: getApparentType,
+            getUnionType: getUnionType,
+            isTypeAssignableTo: isTypeAssignableTo,
+            createAnonymousType: createAnonymousType,
+            createSignature: createSignature,
+            createSymbol: createSymbol,
+            createIndexInfo: createIndexInfo,
+            getAnyType: function () { return anyType; },
+            getStringType: function () { return stringType; },
+            getNumberType: function () { return numberType; },
+            createPromiseType: createPromiseType,
+            createArrayType: createArrayType,
+            getElementTypeOfArrayType: getElementTypeOfArrayType,
+            getBooleanType: function () { return booleanType; },
+            getFalseType: function (fresh) { return fresh ? falseType : regularFalseType; },
+            getTrueType: function (fresh) { return fresh ? trueType : regularTrueType; },
+            getVoidType: function () { return voidType; },
+            getUndefinedType: function () { return undefinedType; },
+            getNullType: function () { return nullType; },
+            getESSymbolType: function () { return esSymbolType; },
+            getNeverType: function () { return neverType; },
+            getOptionalType: function () { return optionalType; },
+            isSymbolAccessible: isSymbolAccessible,
+            isArrayType: isArrayType,
+            isTupleType: isTupleType,
+            isArrayLikeType: isArrayLikeType,
+            isTypeInvalidDueToUnionDiscriminant: isTypeInvalidDueToUnionDiscriminant,
+            getAllPossiblePropertiesOfTypes: getAllPossiblePropertiesOfTypes,
+            getSuggestedSymbolForNonexistentProperty: getSuggestedSymbolForNonexistentProperty,
+            getSuggestionForNonexistentProperty: getSuggestionForNonexistentProperty,
+            getSuggestedSymbolForNonexistentSymbol: function (location, name, meaning) { return getSuggestedSymbolForNonexistentSymbol(location, ts.escapeLeadingUnderscores(name), meaning); },
+            getSuggestionForNonexistentSymbol: function (location, name, meaning) { return getSuggestionForNonexistentSymbol(location, ts.escapeLeadingUnderscores(name), meaning); },
+            getSuggestedSymbolForNonexistentModule: getSuggestedSymbolForNonexistentModule,
+            getSuggestionForNonexistentExport: getSuggestionForNonexistentExport,
+            getBaseConstraintOfType: getBaseConstraintOfType,
+            getDefaultFromTypeParameter: function (type) { return type && type.flags & 262144 ? getDefaultFromTypeParameter(type) : undefined; },
+            resolveName: function (name, location, meaning, excludeGlobals) {
+                return resolveName(location, ts.escapeLeadingUnderscores(name), meaning, undefined, undefined, false, excludeGlobals);
+            },
+            getJsxNamespace: function (n) { return ts.unescapeLeadingUnderscores(getJsxNamespace(n)); },
+            getAccessibleSymbolChain: getAccessibleSymbolChain,
+            getTypePredicateOfSignature: getTypePredicateOfSignature,
+            resolveExternalModuleName: function (moduleSpecifier) {
+                return resolveExternalModuleName(moduleSpecifier, moduleSpecifier, true);
+            },
+            resolveExternalModuleSymbol: resolveExternalModuleSymbol,
+            tryGetThisTypeAt: function (node, includeGlobalThis) {
+                node = ts.getParseTreeNode(node);
+                return node && tryGetThisTypeAt(node, includeGlobalThis);
+            },
+            getTypeArgumentConstraint: function (nodeIn) {
+                var node = ts.getParseTreeNode(nodeIn, ts.isTypeNode);
+                return node && getTypeArgumentConstraint(node);
+            },
+            getSuggestionDiagnostics: function (file, ct) {
+                if (ts.skipTypeChecking(file, compilerOptions, host)) {
+                    return ts.emptyArray;
+                }
+                var diagnostics;
+                try {
+                    cancellationToken = ct;
+                    checkSourceFile(file);
+                    ts.Debug.assert(!!(getNodeLinks(file).flags & 1));
+                    diagnostics = ts.addRange(diagnostics, suggestionDiagnostics.getDiagnostics(file.fileName));
+                    checkUnusedIdentifiers(getPotentiallyUnusedIdentifiers(file), function (containingNode, kind, diag) {
+                        if (!ts.containsParseError(containingNode) && !unusedIsError(kind, !!(containingNode.flags & 8388608))) {
+                            (diagnostics || (diagnostics = [])).push(__assign(__assign({}, diag), { category: ts.DiagnosticCategory.Suggestion }));
+                        }
+                    });
+                    return diagnostics || ts.emptyArray;
+                }
+                finally {
+                    cancellationToken = undefined;
+                }
+            },
+            runWithCancellationToken: function (token, callback) {
+                try {
+                    cancellationToken = token;
+                    return callback(checker);
+                }
+                finally {
+                    cancellationToken = undefined;
+                }
+            },
+            getLocalTypeParametersOfClassOrInterfaceOrTypeAlias: getLocalTypeParametersOfClassOrInterfaceOrTypeAlias,
+            isDeclarationVisible: isDeclarationVisible,
+        };
+        function getResolvedSignatureWorker(nodeIn, candidatesOutArray, argumentCount, checkMode) {
+            var node = ts.getParseTreeNode(nodeIn, ts.isCallLikeExpression);
+            apparentArgumentCount = argumentCount;
+            var res = node ? getResolvedSignature(node, candidatesOutArray, checkMode) : undefined;
+            apparentArgumentCount = undefined;
+            return res;
+        }
+        var tupleTypes = ts.createMap();
+        var unionTypes = ts.createMap();
+        var intersectionTypes = ts.createMap();
+        var literalTypes = ts.createMap();
+        var indexedAccessTypes = ts.createMap();
+        var substitutionTypes = ts.createMap();
+        var evolvingArrayTypes = [];
+        var undefinedProperties = ts.createMap();
+        var unknownSymbol = createSymbol(4, "unknown");
+        var resolvingSymbol = createSymbol(0, "__resolving__");
+        var anyType = createIntrinsicType(1, "any");
+        var autoType = createIntrinsicType(1, "any");
+        var wildcardType = createIntrinsicType(1, "any");
+        var errorType = createIntrinsicType(1, "error");
+        var nonInferrableAnyType = createIntrinsicType(1, "any", 524288);
+        var unknownType = createIntrinsicType(2, "unknown");
+        var undefinedType = createIntrinsicType(32768, "undefined");
+        var undefinedWideningType = strictNullChecks ? undefinedType : createIntrinsicType(32768, "undefined", 524288);
+        var optionalType = createIntrinsicType(32768, "undefined");
+        var nullType = createIntrinsicType(65536, "null");
+        var nullWideningType = strictNullChecks ? nullType : createIntrinsicType(65536, "null", 524288);
+        var stringType = createIntrinsicType(4, "string");
+        var numberType = createIntrinsicType(8, "number");
+        var bigintType = createIntrinsicType(64, "bigint");
+        var falseType = createIntrinsicType(512, "false");
+        var regularFalseType = createIntrinsicType(512, "false");
+        var trueType = createIntrinsicType(512, "true");
+        var regularTrueType = createIntrinsicType(512, "true");
+        trueType.regularType = regularTrueType;
+        trueType.freshType = trueType;
+        regularTrueType.regularType = regularTrueType;
+        regularTrueType.freshType = trueType;
+        falseType.regularType = regularFalseType;
+        falseType.freshType = falseType;
+        regularFalseType.regularType = regularFalseType;
+        regularFalseType.freshType = falseType;
+        var booleanType = createBooleanType([regularFalseType, regularTrueType]);
+        createBooleanType([regularFalseType, trueType]);
+        createBooleanType([falseType, regularTrueType]);
+        createBooleanType([falseType, trueType]);
+        var esSymbolType = createIntrinsicType(4096, "symbol");
+        var voidType = createIntrinsicType(16384, "void");
+        var neverType = createIntrinsicType(131072, "never");
+        var silentNeverType = createIntrinsicType(131072, "never");
+        var nonInferrableType = createIntrinsicType(131072, "never", 2097152);
+        var implicitNeverType = createIntrinsicType(131072, "never");
+        var unreachableNeverType = createIntrinsicType(131072, "never");
+        var nonPrimitiveType = createIntrinsicType(67108864, "object");
+        var stringNumberSymbolType = getUnionType([stringType, numberType, esSymbolType]);
+        var keyofConstraintType = keyofStringsOnly ? stringType : stringNumberSymbolType;
+        var numberOrBigIntType = getUnionType([numberType, bigintType]);
+        var restrictiveMapper = makeFunctionTypeMapper(function (t) { return t.flags & 262144 ? getRestrictiveTypeParameter(t) : t; });
+        var permissiveMapper = makeFunctionTypeMapper(function (t) { return t.flags & 262144 ? wildcardType : t; });
+        var emptyObjectType = createAnonymousType(undefined, emptySymbols, ts.emptyArray, ts.emptyArray, undefined, undefined);
+        var emptyJsxObjectType = createAnonymousType(undefined, emptySymbols, ts.emptyArray, ts.emptyArray, undefined, undefined);
+        emptyJsxObjectType.objectFlags |= 4096;
+        var emptyTypeLiteralSymbol = createSymbol(2048, "__type");
+        emptyTypeLiteralSymbol.members = ts.createSymbolTable();
+        var emptyTypeLiteralType = createAnonymousType(emptyTypeLiteralSymbol, emptySymbols, ts.emptyArray, ts.emptyArray, undefined, undefined);
+        var emptyGenericType = createAnonymousType(undefined, emptySymbols, ts.emptyArray, ts.emptyArray, undefined, undefined);
+        emptyGenericType.instantiations = ts.createMap();
+        var anyFunctionType = createAnonymousType(undefined, emptySymbols, ts.emptyArray, ts.emptyArray, undefined, undefined);
+        anyFunctionType.objectFlags |= 2097152;
+        var noConstraintType = createAnonymousType(undefined, emptySymbols, ts.emptyArray, ts.emptyArray, undefined, undefined);
+        var circularConstraintType = createAnonymousType(undefined, emptySymbols, ts.emptyArray, ts.emptyArray, undefined, undefined);
+        var resolvingDefaultType = createAnonymousType(undefined, emptySymbols, ts.emptyArray, ts.emptyArray, undefined, undefined);
+        var markerSuperType = createTypeParameter();
+        var markerSubType = createTypeParameter();
+        markerSubType.constraint = markerSuperType;
+        var markerOtherType = createTypeParameter();
+        var noTypePredicate = createTypePredicate(1, "<<unresolved>>", 0, anyType);
+        var anySignature = createSignature(undefined, undefined, undefined, ts.emptyArray, anyType, undefined, 0, 0);
+        var unknownSignature = createSignature(undefined, undefined, undefined, ts.emptyArray, errorType, undefined, 0, 0);
+        var resolvingSignature = createSignature(undefined, undefined, undefined, ts.emptyArray, anyType, undefined, 0, 0);
+        var silentNeverSignature = createSignature(undefined, undefined, undefined, ts.emptyArray, silentNeverType, undefined, 0, 0);
+        var enumNumberIndexInfo = createIndexInfo(stringType, true);
+        var iterationTypesCache = ts.createMap();
+        var noIterationTypes = {
+            get yieldType() { return ts.Debug.fail("Not supported"); },
+            get returnType() { return ts.Debug.fail("Not supported"); },
+            get nextType() { return ts.Debug.fail("Not supported"); },
+        };
+        var anyIterationTypes = createIterationTypes(anyType, anyType, anyType);
+        var anyIterationTypesExceptNext = createIterationTypes(anyType, anyType, unknownType);
+        var defaultIterationTypes = createIterationTypes(neverType, anyType, undefinedType);
+        var asyncIterationTypesResolver = {
+            iterableCacheKey: "iterationTypesOfAsyncIterable",
+            iteratorCacheKey: "iterationTypesOfAsyncIterator",
+            iteratorSymbolName: "asyncIterator",
+            getGlobalIteratorType: getGlobalAsyncIteratorType,
+            getGlobalIterableType: getGlobalAsyncIterableType,
+            getGlobalIterableIteratorType: getGlobalAsyncIterableIteratorType,
+            getGlobalGeneratorType: getGlobalAsyncGeneratorType,
+            resolveIterationType: getAwaitedType,
+            mustHaveANextMethodDiagnostic: ts.Diagnostics.An_async_iterator_must_have_a_next_method,
+            mustBeAMethodDiagnostic: ts.Diagnostics.The_0_property_of_an_async_iterator_must_be_a_method,
+            mustHaveAValueDiagnostic: ts.Diagnostics.The_type_returned_by_the_0_method_of_an_async_iterator_must_be_a_promise_for_a_type_with_a_value_property,
+        };
+        var syncIterationTypesResolver = {
+            iterableCacheKey: "iterationTypesOfIterable",
+            iteratorCacheKey: "iterationTypesOfIterator",
+            iteratorSymbolName: "iterator",
+            getGlobalIteratorType: getGlobalIteratorType,
+            getGlobalIterableType: getGlobalIterableType,
+            getGlobalIterableIteratorType: getGlobalIterableIteratorType,
+            getGlobalGeneratorType: getGlobalGeneratorType,
+            resolveIterationType: function (type, _errorNode) { return type; },
+            mustHaveANextMethodDiagnostic: ts.Diagnostics.An_iterator_must_have_a_next_method,
+            mustBeAMethodDiagnostic: ts.Diagnostics.The_0_property_of_an_iterator_must_be_a_method,
+            mustHaveAValueDiagnostic: ts.Diagnostics.The_type_returned_by_the_0_method_of_an_iterator_must_have_a_value_property,
+        };
+        var amalgamatedDuplicates;
+        var reverseMappedCache = ts.createMap();
+        var ambientModulesCache;
+        var patternAmbientModules;
+        var patternAmbientModuleAugmentations;
+        var globalObjectType;
+        var globalFunctionType;
+        var globalCallableFunctionType;
+        var globalNewableFunctionType;
+        var globalArrayType;
+        var globalReadonlyArrayType;
+        var globalStringType;
+        var globalNumberType;
+        var globalBooleanType;
+        var globalRegExpType;
+        var globalThisType;
+        var anyArrayType;
+        var autoArrayType;
+        var anyReadonlyArrayType;
+        var deferredGlobalNonNullableTypeAlias;
+        var deferredGlobalESSymbolConstructorSymbol;
+        var deferredGlobalESSymbolType;
+        var deferredGlobalTypedPropertyDescriptorType;
+        var deferredGlobalPromiseType;
+        var deferredGlobalPromiseLikeType;
+        var deferredGlobalPromiseConstructorSymbol;
+        var deferredGlobalPromiseConstructorLikeType;
+        var deferredGlobalIterableType;
+        var deferredGlobalIteratorType;
+        var deferredGlobalIterableIteratorType;
+        var deferredGlobalGeneratorType;
+        var deferredGlobalIteratorYieldResultType;
+        var deferredGlobalIteratorReturnResultType;
+        var deferredGlobalAsyncIterableType;
+        var deferredGlobalAsyncIteratorType;
+        var deferredGlobalAsyncIterableIteratorType;
+        var deferredGlobalAsyncGeneratorType;
+        var deferredGlobalTemplateStringsArrayType;
+        var deferredGlobalImportMetaType;
+        var deferredGlobalExtractSymbol;
+        var deferredGlobalOmitSymbol;
+        var deferredGlobalBigIntType;
+        var allPotentiallyUnusedIdentifiers = ts.createMap();
+        var flowLoopStart = 0;
+        var flowLoopCount = 0;
+        var sharedFlowCount = 0;
+        var flowAnalysisDisabled = false;
+        var flowInvocationCount = 0;
+        var lastFlowNode;
+        var lastFlowNodeReachable;
+        var flowTypeCache;
+        var emptyStringType = getLiteralType("");
+        var zeroType = getLiteralType(0);
+        var zeroBigIntType = getLiteralType({ negative: false, base10Value: "0" });
+        var resolutionTargets = [];
+        var resolutionResults = [];
+        var resolutionPropertyNames = [];
+        var suggestionCount = 0;
+        var maximumSuggestionCount = 10;
+        var mergedSymbols = [];
+        var symbolLinks = [];
+        var nodeLinks = [];
+        var flowLoopCaches = [];
+        var flowLoopNodes = [];
+        var flowLoopKeys = [];
+        var flowLoopTypes = [];
+        var sharedFlowNodes = [];
+        var sharedFlowTypes = [];
+        var flowNodeReachable = [];
+        var potentialThisCollisions = [];
+        var potentialNewTargetCollisions = [];
+        var potentialWeakMapCollisions = [];
+        var awaitedTypeStack = [];
+        var diagnostics = ts.createDiagnosticCollection();
+        var suggestionDiagnostics = ts.createDiagnosticCollection();
+        var typeofTypesByName = ts.createMapFromTemplate({
+            string: stringType,
+            number: numberType,
+            bigint: bigintType,
+            boolean: booleanType,
+            symbol: esSymbolType,
+            undefined: undefinedType
+        });
+        var typeofType = createTypeofType();
+        var _jsxNamespace;
+        var _jsxFactoryEntity;
+        var outofbandVarianceMarkerHandler;
+        var subtypeRelation = ts.createMap();
+        var strictSubtypeRelation = ts.createMap();
+        var assignableRelation = ts.createMap();
+        var comparableRelation = ts.createMap();
+        var identityRelation = ts.createMap();
+        var enumRelation = ts.createMap();
+        var builtinGlobals = ts.createSymbolTable();
+        builtinGlobals.set(undefinedSymbol.escapedName, undefinedSymbol);
+        initializeTypeChecker();
+        return checker;
+        function getJsxNamespace(location) {
+            if (location) {
+                var file = ts.getSourceFileOfNode(location);
+                if (file) {
+                    if (file.localJsxNamespace) {
+                        return file.localJsxNamespace;
+                    }
+                    var jsxPragma = file.pragmas.get("jsx");
+                    if (jsxPragma) {
+                        var chosenpragma = ts.isArray(jsxPragma) ? jsxPragma[0] : jsxPragma;
+                        file.localJsxFactory = ts.parseIsolatedEntityName(chosenpragma.arguments.factory, languageVersion);
+                        ts.visitNode(file.localJsxFactory, markAsSynthetic);
+                        if (file.localJsxFactory) {
+                            return file.localJsxNamespace = ts.getFirstIdentifier(file.localJsxFactory).escapedText;
+                        }
+                    }
+                }
+            }
+            if (!_jsxNamespace) {
+                _jsxNamespace = "React";
+                if (compilerOptions.jsxFactory) {
+                    _jsxFactoryEntity = ts.parseIsolatedEntityName(compilerOptions.jsxFactory, languageVersion);
+                    ts.visitNode(_jsxFactoryEntity, markAsSynthetic);
+                    if (_jsxFactoryEntity) {
+                        _jsxNamespace = ts.getFirstIdentifier(_jsxFactoryEntity).escapedText;
+                    }
+                }
+                else if (compilerOptions.reactNamespace) {
+                    _jsxNamespace = ts.escapeLeadingUnderscores(compilerOptions.reactNamespace);
+                }
+            }
+            if (!_jsxFactoryEntity) {
+                _jsxFactoryEntity = ts.createQualifiedName(ts.createIdentifier(ts.unescapeLeadingUnderscores(_jsxNamespace)), "createElement");
+            }
+            return _jsxNamespace;
+            function markAsSynthetic(node) {
+                node.pos = -1;
+                node.end = -1;
+                return ts.visitEachChild(node, markAsSynthetic, ts.nullTransformationContext);
+            }
+        }
+        function getEmitResolver(sourceFile, cancellationToken) {
+            getDiagnostics(sourceFile, cancellationToken);
+            return emitResolver;
+        }
+        function lookupOrIssueError(location, message, arg0, arg1, arg2, arg3) {
+            var diagnostic = location
+                ? ts.createDiagnosticForNode(location, message, arg0, arg1, arg2, arg3)
+                : ts.createCompilerDiagnostic(message, arg0, arg1, arg2, arg3);
+            var existing = diagnostics.lookup(diagnostic);
+            if (existing) {
+                return existing;
+            }
+            else {
+                diagnostics.add(diagnostic);
+                return diagnostic;
+            }
+        }
+        function error(location, message, arg0, arg1, arg2, arg3) {
+            var diagnostic = location
+                ? ts.createDiagnosticForNode(location, message, arg0, arg1, arg2, arg3)
+                : ts.createCompilerDiagnostic(message, arg0, arg1, arg2, arg3);
+            diagnostics.add(diagnostic);
+            return diagnostic;
+        }
+        function addErrorOrSuggestion(isError, diagnostic) {
+            if (isError) {
+                diagnostics.add(diagnostic);
+            }
+            else {
+                suggestionDiagnostics.add(__assign(__assign({}, diagnostic), { category: ts.DiagnosticCategory.Suggestion }));
+            }
+        }
+        function errorOrSuggestion(isError, location, message, arg0, arg1, arg2, arg3) {
+            addErrorOrSuggestion(isError, "message" in message ? ts.createDiagnosticForNode(location, message, arg0, arg1, arg2, arg3) : ts.createDiagnosticForNodeFromMessageChain(location, message));
+        }
+        function errorAndMaybeSuggestAwait(location, maybeMissingAwait, message, arg0, arg1, arg2, arg3) {
+            var diagnostic = error(location, message, arg0, arg1, arg2, arg3);
+            if (maybeMissingAwait) {
+                var related = ts.createDiagnosticForNode(location, ts.Diagnostics.Did_you_forget_to_use_await);
+                ts.addRelatedInfo(diagnostic, related);
+            }
+            return diagnostic;
+        }
+        function createSymbol(flags, name, checkFlags) {
+            symbolCount++;
+            var symbol = (new Symbol(flags | 33554432, name));
+            symbol.checkFlags = checkFlags || 0;
+            return symbol;
+        }
+        function getExcludedSymbolFlags(flags) {
+            var result = 0;
+            if (flags & 2)
+                result |= 111551;
+            if (flags & 1)
+                result |= 111550;
+            if (flags & 4)
+                result |= 0;
+            if (flags & 8)
+                result |= 900095;
+            if (flags & 16)
+                result |= 110991;
+            if (flags & 32)
+                result |= 899503;
+            if (flags & 64)
+                result |= 788872;
+            if (flags & 256)
+                result |= 899327;
+            if (flags & 128)
+                result |= 899967;
+            if (flags & 512)
+                result |= 110735;
+            if (flags & 8192)
+                result |= 103359;
+            if (flags & 32768)
+                result |= 46015;
+            if (flags & 65536)
+                result |= 78783;
+            if (flags & 262144)
+                result |= 526824;
+            if (flags & 524288)
+                result |= 788968;
+            if (flags & 2097152)
+                result |= 2097152;
+            return result;
+        }
+        function recordMergedSymbol(target, source) {
+            if (!source.mergeId) {
+                source.mergeId = nextMergeId;
+                nextMergeId++;
+            }
+            mergedSymbols[source.mergeId] = target;
+        }
+        function cloneSymbol(symbol) {
+            var result = createSymbol(symbol.flags, symbol.escapedName);
+            result.declarations = symbol.declarations ? symbol.declarations.slice() : [];
+            result.parent = symbol.parent;
+            if (symbol.valueDeclaration)
+                result.valueDeclaration = symbol.valueDeclaration;
+            if (symbol.constEnumOnlyModule)
+                result.constEnumOnlyModule = true;
+            if (symbol.members)
+                result.members = ts.cloneMap(symbol.members);
+            if (symbol.exports)
+                result.exports = ts.cloneMap(symbol.exports);
+            recordMergedSymbol(result, symbol);
+            return result;
+        }
+        function mergeSymbol(target, source, unidirectional) {
+            if (unidirectional === void 0) { unidirectional = false; }
+            if (!(target.flags & getExcludedSymbolFlags(source.flags)) ||
+                (source.flags | target.flags) & 67108864) {
+                if (source === target) {
+                    return target;
+                }
+                if (!(target.flags & 33554432)) {
+                    var resolvedTarget = resolveSymbol(target);
+                    if (resolvedTarget === unknownSymbol) {
+                        return source;
+                    }
+                    target = cloneSymbol(resolvedTarget);
+                }
+                if (source.flags & 512 && target.flags & 512 && target.constEnumOnlyModule && !source.constEnumOnlyModule) {
+                    target.constEnumOnlyModule = false;
+                }
+                target.flags |= source.flags;
+                if (source.valueDeclaration) {
+                    ts.setValueDeclaration(target, source.valueDeclaration);
+                }
+                ts.addRange(target.declarations, source.declarations);
+                if (source.members) {
+                    if (!target.members)
+                        target.members = ts.createSymbolTable();
+                    mergeSymbolTable(target.members, source.members, unidirectional);
+                }
+                if (source.exports) {
+                    if (!target.exports)
+                        target.exports = ts.createSymbolTable();
+                    mergeSymbolTable(target.exports, source.exports, unidirectional);
+                }
+                if (!unidirectional) {
+                    recordMergedSymbol(target, source);
+                }
+            }
+            else if (target.flags & 1024) {
+                if (target !== globalThisSymbol) {
+                    error(ts.getNameOfDeclaration(source.declarations[0]), ts.Diagnostics.Cannot_augment_module_0_with_value_exports_because_it_resolves_to_a_non_module_entity, symbolToString(target));
+                }
+            }
+            else {
+                var isEitherEnum = !!(target.flags & 384 || source.flags & 384);
+                var isEitherBlockScoped_1 = !!(target.flags & 2 || source.flags & 2);
+                var message = isEitherEnum
+                    ? ts.Diagnostics.Enum_declarations_can_only_merge_with_namespace_or_other_enum_declarations
+                    : isEitherBlockScoped_1
+                        ? ts.Diagnostics.Cannot_redeclare_block_scoped_variable_0
+                        : ts.Diagnostics.Duplicate_identifier_0;
+                var sourceSymbolFile = source.declarations && ts.getSourceFileOfNode(source.declarations[0]);
+                var targetSymbolFile = target.declarations && ts.getSourceFileOfNode(target.declarations[0]);
+                var symbolName_1 = symbolToString(source);
+                if (sourceSymbolFile && targetSymbolFile && amalgamatedDuplicates && !isEitherEnum && sourceSymbolFile !== targetSymbolFile) {
+                    var firstFile_1 = ts.comparePaths(sourceSymbolFile.path, targetSymbolFile.path) === -1 ? sourceSymbolFile : targetSymbolFile;
+                    var secondFile_1 = firstFile_1 === sourceSymbolFile ? targetSymbolFile : sourceSymbolFile;
+                    var filesDuplicates = ts.getOrUpdate(amalgamatedDuplicates, firstFile_1.path + "|" + secondFile_1.path, function () {
+                        return ({ firstFile: firstFile_1, secondFile: secondFile_1, conflictingSymbols: ts.createMap() });
+                    });
+                    var conflictingSymbolInfo = ts.getOrUpdate(filesDuplicates.conflictingSymbols, symbolName_1, function () {
+                        return ({ isBlockScoped: isEitherBlockScoped_1, firstFileLocations: [], secondFileLocations: [] });
+                    });
+                    addDuplicateLocations(conflictingSymbolInfo.firstFileLocations, source);
+                    addDuplicateLocations(conflictingSymbolInfo.secondFileLocations, target);
+                }
+                else {
+                    addDuplicateDeclarationErrorsForSymbols(source, message, symbolName_1, target);
+                    addDuplicateDeclarationErrorsForSymbols(target, message, symbolName_1, source);
+                }
+            }
+            return target;
+            function addDuplicateLocations(locs, symbol) {
+                for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+                    var decl = _a[_i];
+                    ts.pushIfUnique(locs, decl);
+                }
+            }
+        }
+        function addDuplicateDeclarationErrorsForSymbols(target, message, symbolName, source) {
+            ts.forEach(target.declarations, function (node) {
+                addDuplicateDeclarationError(node, message, symbolName, source.declarations);
+            });
+        }
+        function addDuplicateDeclarationError(node, message, symbolName, relatedNodes) {
+            var errorNode = (ts.getExpandoInitializer(node, false) ? ts.getNameOfExpando(node) : ts.getNameOfDeclaration(node)) || node;
+            var err = lookupOrIssueError(errorNode, message, symbolName);
+            var _loop_6 = function (relatedNode) {
+                var adjustedNode = (ts.getExpandoInitializer(relatedNode, false) ? ts.getNameOfExpando(relatedNode) : ts.getNameOfDeclaration(relatedNode)) || relatedNode;
+                if (adjustedNode === errorNode)
+                    return "continue";
+                err.relatedInformation = err.relatedInformation || [];
+                var leadingMessage = ts.createDiagnosticForNode(adjustedNode, ts.Diagnostics._0_was_also_declared_here, symbolName);
+                var followOnMessage = ts.createDiagnosticForNode(adjustedNode, ts.Diagnostics.and_here);
+                if (ts.length(err.relatedInformation) >= 5 || ts.some(err.relatedInformation, function (r) { return ts.compareDiagnostics(r, followOnMessage) === 0 || ts.compareDiagnostics(r, leadingMessage) === 0; }))
+                    return "continue";
+                ts.addRelatedInfo(err, !ts.length(err.relatedInformation) ? leadingMessage : followOnMessage);
+            };
+            for (var _i = 0, _a = relatedNodes || ts.emptyArray; _i < _a.length; _i++) {
+                var relatedNode = _a[_i];
+                _loop_6(relatedNode);
+            }
+        }
+        function combineSymbolTables(first, second) {
+            if (!ts.hasEntries(first))
+                return second;
+            if (!ts.hasEntries(second))
+                return first;
+            var combined = ts.createSymbolTable();
+            mergeSymbolTable(combined, first);
+            mergeSymbolTable(combined, second);
+            return combined;
+        }
+        function mergeSymbolTable(target, source, unidirectional) {
+            if (unidirectional === void 0) { unidirectional = false; }
+            source.forEach(function (sourceSymbol, id) {
+                var targetSymbol = target.get(id);
+                target.set(id, targetSymbol ? mergeSymbol(targetSymbol, sourceSymbol, unidirectional) : sourceSymbol);
+            });
+        }
+        function mergeModuleAugmentation(moduleName) {
+            var _a, _b;
+            var moduleAugmentation = moduleName.parent;
+            if (moduleAugmentation.symbol.declarations[0] !== moduleAugmentation) {
+                ts.Debug.assert(moduleAugmentation.symbol.declarations.length > 1);
+                return;
+            }
+            if (ts.isGlobalScopeAugmentation(moduleAugmentation)) {
+                mergeSymbolTable(globals, moduleAugmentation.symbol.exports);
+            }
+            else {
+                var moduleNotFoundError = !(moduleName.parent.parent.flags & 8388608)
+                    ? ts.Diagnostics.Invalid_module_name_in_augmentation_module_0_cannot_be_found
+                    : undefined;
+                var mainModule_1 = resolveExternalModuleNameWorker(moduleName, moduleName, moduleNotFoundError, true);
+                if (!mainModule_1) {
+                    return;
+                }
+                mainModule_1 = resolveExternalModuleSymbol(mainModule_1);
+                if (mainModule_1.flags & 1920) {
+                    if (ts.some(patternAmbientModules, function (module) { return mainModule_1 === module.symbol; })) {
+                        var merged = mergeSymbol(moduleAugmentation.symbol, mainModule_1, true);
+                        if (!patternAmbientModuleAugmentations) {
+                            patternAmbientModuleAugmentations = ts.createMap();
+                        }
+                        patternAmbientModuleAugmentations.set(moduleName.text, merged);
+                    }
+                    else {
+                        if (((_a = mainModule_1.exports) === null || _a === void 0 ? void 0 : _a.get("__export")) && ((_b = moduleAugmentation.symbol.exports) === null || _b === void 0 ? void 0 : _b.size)) {
+                            var resolvedExports = getResolvedMembersOrExportsOfSymbol(mainModule_1, "resolvedExports");
+                            for (var _i = 0, _c = ts.arrayFrom(moduleAugmentation.symbol.exports.entries()); _i < _c.length; _i++) {
+                                var _d = _c[_i], key = _d[0], value = _d[1];
+                                if (resolvedExports.has(key) && !mainModule_1.exports.has(key)) {
+                                    mergeSymbol(resolvedExports.get(key), value);
+                                }
+                            }
+                        }
+                        mergeSymbol(mainModule_1, moduleAugmentation.symbol);
+                    }
+                }
+                else {
+                    error(moduleName, ts.Diagnostics.Cannot_augment_module_0_because_it_resolves_to_a_non_module_entity, moduleName.text);
+                }
+            }
+        }
+        function addToSymbolTable(target, source, message) {
+            source.forEach(function (sourceSymbol, id) {
+                var targetSymbol = target.get(id);
+                if (targetSymbol) {
+                    ts.forEach(targetSymbol.declarations, addDeclarationDiagnostic(ts.unescapeLeadingUnderscores(id), message));
+                }
+                else {
+                    target.set(id, sourceSymbol);
+                }
+            });
+            function addDeclarationDiagnostic(id, message) {
+                return function (declaration) { return diagnostics.add(ts.createDiagnosticForNode(declaration, message, id)); };
+            }
+        }
+        function getSymbolLinks(symbol) {
+            if (symbol.flags & 33554432)
+                return symbol;
+            var id = getSymbolId(symbol);
+            return symbolLinks[id] || (symbolLinks[id] = new SymbolLinks());
+        }
+        function getNodeLinks(node) {
+            var nodeId = getNodeId(node);
+            return nodeLinks[nodeId] || (nodeLinks[nodeId] = new NodeLinks());
+        }
+        function isGlobalSourceFile(node) {
+            return node.kind === 290 && !ts.isExternalOrCommonJsModule(node);
+        }
+        function getSymbol(symbols, name, meaning) {
+            if (meaning) {
+                var symbol = getMergedSymbol(symbols.get(name));
+                if (symbol) {
+                    ts.Debug.assert((ts.getCheckFlags(symbol) & 1) === 0, "Should never get an instantiated symbol here.");
+                    if (symbol.flags & meaning) {
+                        return symbol;
+                    }
+                    if (symbol.flags & 2097152) {
+                        var target = resolveAlias(symbol);
+                        if (target === unknownSymbol || target.flags & meaning) {
+                            return symbol;
+                        }
+                    }
+                }
+            }
+        }
+        function getSymbolsOfParameterPropertyDeclaration(parameter, parameterName) {
+            var constructorDeclaration = parameter.parent;
+            var classDeclaration = parameter.parent.parent;
+            var parameterSymbol = getSymbol(constructorDeclaration.locals, parameterName, 111551);
+            var propertySymbol = getSymbol(getMembersOfSymbol(classDeclaration.symbol), parameterName, 111551);
+            if (parameterSymbol && propertySymbol) {
+                return [parameterSymbol, propertySymbol];
+            }
+            return ts.Debug.fail("There should exist two symbols, one as property declaration and one as parameter declaration");
+        }
+        function isBlockScopedNameDeclaredBeforeUse(declaration, usage) {
+            var declarationFile = ts.getSourceFileOfNode(declaration);
+            var useFile = ts.getSourceFileOfNode(usage);
+            var declContainer = ts.getEnclosingBlockScopeContainer(declaration);
+            if (declarationFile !== useFile) {
+                if ((moduleKind && (declarationFile.externalModuleIndicator || useFile.externalModuleIndicator)) ||
+                    (!compilerOptions.outFile && !compilerOptions.out) ||
+                    isInTypeQuery(usage) ||
+                    declaration.flags & 8388608) {
+                    return true;
+                }
+                if (isUsedInFunctionOrInstanceProperty(usage, declaration)) {
+                    return true;
+                }
+                var sourceFiles = host.getSourceFiles();
+                return sourceFiles.indexOf(declarationFile) <= sourceFiles.indexOf(useFile);
+            }
+            if (declaration.pos <= usage.pos) {
+                if (declaration.kind === 191) {
+                    var errorBindingElement = ts.getAncestor(usage, 191);
+                    if (errorBindingElement) {
+                        return ts.findAncestor(errorBindingElement, ts.isBindingElement) !== ts.findAncestor(declaration, ts.isBindingElement) ||
+                            declaration.pos < errorBindingElement.pos;
+                    }
+                    return isBlockScopedNameDeclaredBeforeUse(ts.getAncestor(declaration, 242), usage);
+                }
+                else if (declaration.kind === 242) {
+                    return !isImmediatelyUsedInInitializerOfBlockScopedVariable(declaration, usage);
+                }
+                else if (ts.isClassDeclaration(declaration)) {
+                    return !ts.findAncestor(usage, function (n) { return ts.isComputedPropertyName(n) && n.parent.parent === declaration; });
+                }
+                else if (ts.isPropertyDeclaration(declaration)) {
+                    return !isPropertyImmediatelyReferencedWithinDeclaration(declaration, usage, false);
+                }
+                else if (ts.isParameterPropertyDeclaration(declaration, declaration.parent)) {
+                    return !(compilerOptions.target === 99 && !!compilerOptions.useDefineForClassFields
+                        && ts.getContainingClass(declaration) === ts.getContainingClass(usage)
+                        && isUsedInFunctionOrInstanceProperty(usage, declaration));
+                }
+                return true;
+            }
+            if (usage.parent.kind === 263 || (usage.parent.kind === 259 && usage.parent.isExportEquals)) {
+                return true;
+            }
+            if (usage.kind === 259 && usage.isExportEquals) {
+                return true;
+            }
+            if (!!(usage.flags & 4194304) || isInTypeQuery(usage) || usageInTypeDeclaration()) {
+                return true;
+            }
+            if (isUsedInFunctionOrInstanceProperty(usage, declaration)) {
+                if (compilerOptions.target === 99 && !!compilerOptions.useDefineForClassFields
+                    && ts.getContainingClass(declaration)
+                    && (ts.isPropertyDeclaration(declaration) || ts.isParameterPropertyDeclaration(declaration, declaration.parent))) {
+                    return !isPropertyImmediatelyReferencedWithinDeclaration(declaration, usage, true);
+                }
+                else {
+                    return true;
+                }
+            }
+            return false;
+            function usageInTypeDeclaration() {
+                return !!ts.findAncestor(usage, function (node) { return ts.isInterfaceDeclaration(node) || ts.isTypeAliasDeclaration(node); });
+            }
+            function isImmediatelyUsedInInitializerOfBlockScopedVariable(declaration, usage) {
+                switch (declaration.parent.parent.kind) {
+                    case 225:
+                    case 230:
+                    case 232:
+                        if (isSameScopeDescendentOf(usage, declaration, declContainer)) {
+                            return true;
+                        }
+                        break;
+                }
+                var grandparent = declaration.parent.parent;
+                return ts.isForInOrOfStatement(grandparent) && isSameScopeDescendentOf(usage, grandparent.expression, declContainer);
+            }
+            function isUsedInFunctionOrInstanceProperty(usage, declaration) {
+                return !!ts.findAncestor(usage, function (current) {
+                    if (current === declContainer) {
+                        return "quit";
+                    }
+                    if (ts.isFunctionLike(current)) {
+                        return true;
+                    }
+                    var initializerOfProperty = current.parent &&
+                        current.parent.kind === 159 &&
+                        current.parent.initializer === current;
+                    if (initializerOfProperty) {
+                        if (ts.hasModifier(current.parent, 32)) {
+                            if (declaration.kind === 161) {
+                                return true;
+                            }
+                        }
+                        else {
+                            var isDeclarationInstanceProperty = declaration.kind === 159 && !ts.hasModifier(declaration, 32);
+                            if (!isDeclarationInstanceProperty || ts.getContainingClass(usage) !== ts.getContainingClass(declaration)) {
+                                return true;
+                            }
+                        }
+                    }
+                    return false;
+                });
+            }
+            function isPropertyImmediatelyReferencedWithinDeclaration(declaration, usage, stopAtAnyPropertyDeclaration) {
+                if (usage.end > declaration.end) {
+                    return false;
+                }
+                var ancestorChangingReferenceScope = ts.findAncestor(usage, function (node) {
+                    if (node === declaration) {
+                        return "quit";
+                    }
+                    switch (node.kind) {
+                        case 202:
+                            return true;
+                        case 159:
+                            return stopAtAnyPropertyDeclaration &&
+                                (ts.isPropertyDeclaration(declaration) && node.parent === declaration.parent
+                                    || ts.isParameterPropertyDeclaration(declaration, declaration.parent) && node.parent === declaration.parent.parent)
+                                ? "quit" : true;
+                        case 223:
+                            switch (node.parent.kind) {
+                                case 163:
+                                case 161:
+                                case 164:
+                                    return true;
+                                default:
+                                    return false;
+                            }
+                        default:
+                            return false;
+                    }
+                });
+                return ancestorChangingReferenceScope === undefined;
+            }
+        }
+        function useOuterVariableScopeInParameter(result, location, lastLocation) {
+            var target = ts.getEmitScriptTarget(compilerOptions);
+            var functionLocation = location;
+            if (ts.isParameter(lastLocation) && functionLocation.body && result.valueDeclaration.pos >= functionLocation.body.pos && result.valueDeclaration.end <= functionLocation.body.end) {
+                if (target >= 2) {
+                    var links = getNodeLinks(functionLocation);
+                    if (links.declarationRequiresScopeChange === undefined) {
+                        links.declarationRequiresScopeChange = ts.forEach(functionLocation.parameters, requiresScopeChange) || false;
+                    }
+                    return !links.declarationRequiresScopeChange;
+                }
+            }
+            return false;
+            function requiresScopeChange(node) {
+                return requiresScopeChangeWorker(node.name)
+                    || !!node.initializer && requiresScopeChangeWorker(node.initializer);
+            }
+            function requiresScopeChangeWorker(node) {
+                switch (node.kind) {
+                    case 202:
+                    case 201:
+                    case 244:
+                    case 162:
+                        return false;
+                    case 161:
+                    case 163:
+                    case 164:
+                    case 281:
+                        return requiresScopeChangeWorker(node.name);
+                    case 159:
+                        if (ts.hasStaticModifier(node)) {
+                            return target < 99 || !compilerOptions.useDefineForClassFields;
+                        }
+                        return requiresScopeChangeWorker(node.name);
+                    default:
+                        if (ts.isNullishCoalesce(node) || ts.isOptionalChain(node)) {
+                            return target < 7;
+                        }
+                        if (ts.isBindingElement(node) && node.dotDotDotToken && ts.isObjectBindingPattern(node.parent)) {
+                            return target < 4;
+                        }
+                        if (ts.isTypeNode(node))
+                            return false;
+                        return ts.forEachChild(node, requiresScopeChangeWorker) || false;
+                }
+            }
+        }
+        function resolveName(location, name, meaning, nameNotFoundMessage, nameArg, isUse, excludeGlobals, suggestedNameNotFoundMessage) {
+            if (excludeGlobals === void 0) { excludeGlobals = false; }
+            return resolveNameHelper(location, name, meaning, nameNotFoundMessage, nameArg, isUse, excludeGlobals, getSymbol, suggestedNameNotFoundMessage);
+        }
+        function resolveNameHelper(location, name, meaning, nameNotFoundMessage, nameArg, isUse, excludeGlobals, lookup, suggestedNameNotFoundMessage) {
+            var originalLocation = location;
+            var result;
+            var lastLocation;
+            var lastSelfReferenceLocation;
+            var propertyWithInvalidInitializer;
+            var associatedDeclarationForContainingInitializerOrBindingName;
+            var withinDeferredContext = false;
+            var errorLocation = location;
+            var grandparent;
+            var isInExternalModule = false;
+            loop: while (location) {
+                if (location.locals && !isGlobalSourceFile(location)) {
+                    if (result = lookup(location.locals, name, meaning)) {
+                        var useResult = true;
+                        if (ts.isFunctionLike(location) && lastLocation && lastLocation !== location.body) {
+                            if (meaning & result.flags & 788968 && lastLocation.kind !== 303) {
+                                useResult = result.flags & 262144
+                                    ? lastLocation === location.type ||
+                                        lastLocation.kind === 156 ||
+                                        lastLocation.kind === 155
+                                    : false;
+                            }
+                            if (meaning & result.flags & 3) {
+                                if (useOuterVariableScopeInParameter(result, location, lastLocation)) {
+                                    useResult = false;
+                                }
+                                else if (result.flags & 1) {
+                                    useResult =
+                                        lastLocation.kind === 156 ||
+                                            (lastLocation === location.type &&
+                                                !!ts.findAncestor(result.valueDeclaration, ts.isParameter));
+                                }
+                            }
+                        }
+                        else if (location.kind === 180) {
+                            useResult = lastLocation === location.trueType;
+                        }
+                        if (useResult) {
+                            break loop;
+                        }
+                        else {
+                            result = undefined;
+                        }
+                    }
+                }
+                withinDeferredContext = withinDeferredContext || getIsDeferredContext(location, lastLocation);
+                switch (location.kind) {
+                    case 290:
+                        if (!ts.isExternalOrCommonJsModule(location))
+                            break;
+                        isInExternalModule = true;
+                    case 249:
+                        var moduleExports = getSymbolOfNode(location).exports || emptySymbols;
+                        if (location.kind === 290 || (ts.isModuleDeclaration(location) && location.flags & 8388608 && !ts.isGlobalScopeAugmentation(location))) {
+                            if (result = moduleExports.get("default")) {
+                                var localSymbol = ts.getLocalSymbolForExportDefault(result);
+                                if (localSymbol && (result.flags & meaning) && localSymbol.escapedName === name) {
+                                    break loop;
+                                }
+                                result = undefined;
+                            }
+                            var moduleExport = moduleExports.get(name);
+                            if (moduleExport &&
+                                moduleExport.flags === 2097152 &&
+                                (ts.getDeclarationOfKind(moduleExport, 263) || ts.getDeclarationOfKind(moduleExport, 262))) {
+                                break;
+                            }
+                        }
+                        if (name !== "default" && (result = lookup(moduleExports, name, meaning & 2623475))) {
+                            if (ts.isSourceFile(location) && location.commonJsModuleIndicator && !result.declarations.some(ts.isJSDocTypeAlias)) {
+                                result = undefined;
+                            }
+                            else {
+                                break loop;
+                            }
+                        }
+                        break;
+                    case 248:
+                        if (result = lookup(getSymbolOfNode(location).exports, name, meaning & 8)) {
+                            break loop;
+                        }
+                        break;
+                    case 159:
+                        if (!ts.hasModifier(location, 32)) {
+                            var ctor = findConstructorDeclaration(location.parent);
+                            if (ctor && ctor.locals) {
+                                if (lookup(ctor.locals, name, meaning & 111551)) {
+                                    propertyWithInvalidInitializer = location;
+                                }
+                            }
+                        }
+                        break;
+                    case 245:
+                    case 214:
+                    case 246:
+                        if (result = lookup(getSymbolOfNode(location).members || emptySymbols, name, meaning & 788968)) {
+                            if (!isTypeParameterSymbolDeclaredInContainer(result, location)) {
+                                result = undefined;
+                                break;
+                            }
+                            if (lastLocation && ts.hasModifier(lastLocation, 32)) {
+                                error(errorLocation, ts.Diagnostics.Static_members_cannot_reference_class_type_parameters);
+                                return undefined;
+                            }
+                            break loop;
+                        }
+                        if (location.kind === 214 && meaning & 32) {
+                            var className = location.name;
+                            if (className && name === className.escapedText) {
+                                result = location.symbol;
+                                break loop;
+                            }
+                        }
+                        break;
+                    case 216:
+                        if (lastLocation === location.expression && location.parent.token === 90) {
+                            var container = location.parent.parent;
+                            if (ts.isClassLike(container) && (result = lookup(getSymbolOfNode(container).members, name, meaning & 788968))) {
+                                if (nameNotFoundMessage) {
+                                    error(errorLocation, ts.Diagnostics.Base_class_expressions_cannot_reference_class_type_parameters);
+                                }
+                                return undefined;
+                            }
+                        }
+                        break;
+                    case 154:
+                        grandparent = location.parent.parent;
+                        if (ts.isClassLike(grandparent) || grandparent.kind === 246) {
+                            if (result = lookup(getSymbolOfNode(grandparent).members, name, meaning & 788968)) {
+                                error(errorLocation, ts.Diagnostics.A_computed_property_name_cannot_reference_a_type_parameter_from_its_containing_type);
+                                return undefined;
+                            }
+                        }
+                        break;
+                    case 202:
+                        if (compilerOptions.target >= 2) {
+                            break;
+                        }
+                    case 161:
+                    case 162:
+                    case 163:
+                    case 164:
+                    case 244:
+                        if (meaning & 3 && name === "arguments") {
+                            result = argumentsSymbol;
+                            break loop;
+                        }
+                        break;
+                    case 201:
+                        if (meaning & 3 && name === "arguments") {
+                            result = argumentsSymbol;
+                            break loop;
+                        }
+                        if (meaning & 16) {
+                            var functionName = location.name;
+                            if (functionName && name === functionName.escapedText) {
+                                result = location.symbol;
+                                break loop;
+                            }
+                        }
+                        break;
+                    case 157:
+                        if (location.parent && location.parent.kind === 156) {
+                            location = location.parent;
+                        }
+                        if (location.parent && (ts.isClassElement(location.parent) || location.parent.kind === 245)) {
+                            location = location.parent;
+                        }
+                        break;
+                    case 322:
+                    case 315:
+                    case 316:
+                        location = ts.getJSDocHost(location);
+                        break;
+                    case 156:
+                        if (lastLocation && (lastLocation === location.initializer ||
+                            lastLocation === location.name && ts.isBindingPattern(lastLocation))) {
+                            if (!associatedDeclarationForContainingInitializerOrBindingName) {
+                                associatedDeclarationForContainingInitializerOrBindingName = location;
+                            }
+                        }
+                        break;
+                    case 191:
+                        if (lastLocation && (lastLocation === location.initializer ||
+                            lastLocation === location.name && ts.isBindingPattern(lastLocation))) {
+                            var root = ts.getRootDeclaration(location);
+                            if (root.kind === 156) {
+                                if (!associatedDeclarationForContainingInitializerOrBindingName) {
+                                    associatedDeclarationForContainingInitializerOrBindingName = location;
+                                }
+                            }
+                        }
+                        break;
+                }
+                if (isSelfReferenceLocation(location)) {
+                    lastSelfReferenceLocation = location;
+                }
+                lastLocation = location;
+                location = location.parent;
+            }
+            if (isUse && result && (!lastSelfReferenceLocation || result !== lastSelfReferenceLocation.symbol)) {
+                result.isReferenced |= meaning;
+            }
+            if (!result) {
+                if (lastLocation) {
+                    ts.Debug.assert(lastLocation.kind === 290);
+                    if (lastLocation.commonJsModuleIndicator && name === "exports" && meaning & lastLocation.symbol.flags) {
+                        return lastLocation.symbol;
+                    }
+                }
+                if (!excludeGlobals) {
+                    result = lookup(globals, name, meaning);
+                }
+            }
+            if (!result) {
+                if (originalLocation && ts.isInJSFile(originalLocation) && originalLocation.parent) {
+                    if (ts.isRequireCall(originalLocation.parent, false)) {
+                        return requireSymbol;
+                    }
+                }
+            }
+            if (!result) {
+                if (nameNotFoundMessage) {
+                    if (!errorLocation ||
+                        !checkAndReportErrorForMissingPrefix(errorLocation, name, nameArg) &&
+                            !checkAndReportErrorForExtendingInterface(errorLocation) &&
+                            !checkAndReportErrorForUsingTypeAsNamespace(errorLocation, name, meaning) &&
+                            !checkAndReportErrorForExportingPrimitiveType(errorLocation, name) &&
+                            !checkAndReportErrorForUsingTypeAsValue(errorLocation, name, meaning) &&
+                            !checkAndReportErrorForUsingNamespaceModuleAsValue(errorLocation, name, meaning) &&
+                            !checkAndReportErrorForUsingValueAsType(errorLocation, name, meaning)) {
+                        var suggestion = void 0;
+                        if (suggestedNameNotFoundMessage && suggestionCount < maximumSuggestionCount) {
+                            suggestion = getSuggestedSymbolForNonexistentSymbol(originalLocation, name, meaning);
+                            if (suggestion) {
+                                var suggestionName = symbolToString(suggestion);
+                                var diagnostic = error(errorLocation, suggestedNameNotFoundMessage, diagnosticName(nameArg), suggestionName);
+                                if (suggestion.valueDeclaration) {
+                                    ts.addRelatedInfo(diagnostic, ts.createDiagnosticForNode(suggestion.valueDeclaration, ts.Diagnostics._0_is_declared_here, suggestionName));
+                                }
+                            }
+                        }
+                        if (!suggestion) {
+                            error(errorLocation, nameNotFoundMessage, diagnosticName(nameArg));
+                        }
+                        suggestionCount++;
+                    }
+                }
+                return undefined;
+            }
+            if (nameNotFoundMessage) {
+                if (propertyWithInvalidInitializer && !(compilerOptions.target === 99 && compilerOptions.useDefineForClassFields)) {
+                    var propertyName = propertyWithInvalidInitializer.name;
+                    error(errorLocation, ts.Diagnostics.Initializer_of_instance_member_variable_0_cannot_reference_identifier_1_declared_in_the_constructor, ts.declarationNameToString(propertyName), diagnosticName(nameArg));
+                    return undefined;
+                }
+                if (errorLocation &&
+                    (meaning & 2 ||
+                        ((meaning & 32 || meaning & 384) && (meaning & 111551) === 111551))) {
+                    var exportOrLocalSymbol = getExportSymbolOfValueSymbolIfExported(result);
+                    if (exportOrLocalSymbol.flags & 2 || exportOrLocalSymbol.flags & 32 || exportOrLocalSymbol.flags & 384) {
+                        checkResolvedBlockScopedVariable(exportOrLocalSymbol, errorLocation);
+                    }
+                }
+                if (result && isInExternalModule && (meaning & 111551) === 111551 && !(originalLocation.flags & 4194304)) {
+                    var merged = getMergedSymbol(result);
+                    if (ts.length(merged.declarations) && ts.every(merged.declarations, function (d) { return ts.isNamespaceExportDeclaration(d) || ts.isSourceFile(d) && !!d.symbol.globalExports; })) {
+                        errorOrSuggestion(!compilerOptions.allowUmdGlobalAccess, errorLocation, ts.Diagnostics._0_refers_to_a_UMD_global_but_the_current_file_is_a_module_Consider_adding_an_import_instead, ts.unescapeLeadingUnderscores(name));
+                    }
+                }
+                if (result && associatedDeclarationForContainingInitializerOrBindingName && !withinDeferredContext && (meaning & 111551) === 111551) {
+                    var candidate = getMergedSymbol(getLateBoundSymbol(result));
+                    var root = ts.getRootDeclaration(associatedDeclarationForContainingInitializerOrBindingName);
+                    if (candidate === getSymbolOfNode(associatedDeclarationForContainingInitializerOrBindingName)) {
+                        error(errorLocation, ts.Diagnostics.Parameter_0_cannot_reference_itself, ts.declarationNameToString(associatedDeclarationForContainingInitializerOrBindingName.name));
+                    }
+                    else if (candidate.valueDeclaration && candidate.valueDeclaration.pos > associatedDeclarationForContainingInitializerOrBindingName.pos && root.parent.locals && lookup(root.parent.locals, candidate.escapedName, meaning) === candidate) {
+                        error(errorLocation, ts.Diagnostics.Parameter_0_cannot_reference_identifier_1_declared_after_it, ts.declarationNameToString(associatedDeclarationForContainingInitializerOrBindingName.name), ts.declarationNameToString(errorLocation));
+                    }
+                }
+                if (result && errorLocation && meaning & 111551 && result.flags & 2097152) {
+                    checkSymbolUsageInExpressionContext(result, name, errorLocation);
+                }
+            }
+            return result;
+        }
+        function checkSymbolUsageInExpressionContext(symbol, name, useSite) {
+            if (!ts.isValidTypeOnlyAliasUseSite(useSite)) {
+                var typeOnlyDeclaration = getTypeOnlyAliasDeclaration(symbol);
+                if (typeOnlyDeclaration) {
+                    var isExport = ts.typeOnlyDeclarationIsExport(typeOnlyDeclaration);
+                    var message = isExport
+                        ? ts.Diagnostics._0_cannot_be_used_as_a_value_because_it_was_exported_using_export_type
+                        : ts.Diagnostics._0_cannot_be_used_as_a_value_because_it_was_imported_using_import_type;
+                    var relatedMessage = isExport
+                        ? ts.Diagnostics._0_was_exported_here
+                        : ts.Diagnostics._0_was_imported_here;
+                    var unescapedName = ts.unescapeLeadingUnderscores(name);
+                    ts.addRelatedInfo(error(useSite, message, unescapedName), ts.createDiagnosticForNode(typeOnlyDeclaration, relatedMessage, unescapedName));
+                }
+            }
+        }
+        function getIsDeferredContext(location, lastLocation) {
+            if (location.kind !== 202 && location.kind !== 201) {
+                return ts.isTypeQueryNode(location) || ((ts.isFunctionLikeDeclaration(location) ||
+                    (location.kind === 159 && !ts.hasModifier(location, 32))) && (!lastLocation || lastLocation !== location.name));
+            }
+            if (lastLocation && lastLocation === location.name) {
+                return false;
+            }
+            if (location.asteriskToken || ts.hasModifier(location, 256)) {
+                return true;
+            }
+            return !ts.getImmediatelyInvokedFunctionExpression(location);
+        }
+        function isSelfReferenceLocation(node) {
+            switch (node.kind) {
+                case 244:
+                case 245:
+                case 246:
+                case 248:
+                case 247:
+                case 249:
+                    return true;
+                default:
+                    return false;
+            }
+        }
+        function diagnosticName(nameArg) {
+            return ts.isString(nameArg) ? ts.unescapeLeadingUnderscores(nameArg) : ts.declarationNameToString(nameArg);
+        }
+        function isTypeParameterSymbolDeclaredInContainer(symbol, container) {
+            for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+                var decl = _a[_i];
+                if (decl.kind === 155) {
+                    var parent = ts.isJSDocTemplateTag(decl.parent) ? ts.getJSDocHost(decl.parent) : decl.parent;
+                    if (parent === container) {
+                        return !(ts.isJSDocTemplateTag(decl.parent) && ts.find(decl.parent.parent.tags, ts.isJSDocTypeAlias));
+                    }
+                }
+            }
+            return false;
+        }
+        function checkAndReportErrorForMissingPrefix(errorLocation, name, nameArg) {
+            if (!ts.isIdentifier(errorLocation) || errorLocation.escapedText !== name || isTypeReferenceIdentifier(errorLocation) || isInTypeQuery(errorLocation)) {
+                return false;
+            }
+            var container = ts.getThisContainer(errorLocation, false);
+            var location = container;
+            while (location) {
+                if (ts.isClassLike(location.parent)) {
+                    var classSymbol = getSymbolOfNode(location.parent);
+                    if (!classSymbol) {
+                        break;
+                    }
+                    var constructorType = getTypeOfSymbol(classSymbol);
+                    if (getPropertyOfType(constructorType, name)) {
+                        error(errorLocation, ts.Diagnostics.Cannot_find_name_0_Did_you_mean_the_static_member_1_0, diagnosticName(nameArg), symbolToString(classSymbol));
+                        return true;
+                    }
+                    if (location === container && !ts.hasModifier(location, 32)) {
+                        var instanceType = getDeclaredTypeOfSymbol(classSymbol).thisType;
+                        if (getPropertyOfType(instanceType, name)) {
+                            error(errorLocation, ts.Diagnostics.Cannot_find_name_0_Did_you_mean_the_instance_member_this_0, diagnosticName(nameArg));
+                            return true;
+                        }
+                    }
+                }
+                location = location.parent;
+            }
+            return false;
+        }
+        function checkAndReportErrorForExtendingInterface(errorLocation) {
+            var expression = getEntityNameForExtendingInterface(errorLocation);
+            if (expression && resolveEntityName(expression, 64, true)) {
+                error(errorLocation, ts.Diagnostics.Cannot_extend_an_interface_0_Did_you_mean_implements, ts.getTextOfNode(expression));
+                return true;
+            }
+            return false;
+        }
+        function getEntityNameForExtendingInterface(node) {
+            switch (node.kind) {
+                case 75:
+                case 194:
+                    return node.parent ? getEntityNameForExtendingInterface(node.parent) : undefined;
+                case 216:
+                    if (ts.isEntityNameExpression(node.expression)) {
+                        return node.expression;
+                    }
+                default:
+                    return undefined;
+            }
+        }
+        function checkAndReportErrorForUsingTypeAsNamespace(errorLocation, name, meaning) {
+            var namespaceMeaning = 1920 | (ts.isInJSFile(errorLocation) ? 111551 : 0);
+            if (meaning === namespaceMeaning) {
+                var symbol = resolveSymbol(resolveName(errorLocation, name, 788968 & ~namespaceMeaning, undefined, undefined, false));
+                var parent = errorLocation.parent;
+                if (symbol) {
+                    if (ts.isQualifiedName(parent)) {
+                        ts.Debug.assert(parent.left === errorLocation, "Should only be resolving left side of qualified name as a namespace");
+                        var propName = parent.right.escapedText;
+                        var propType = getPropertyOfType(getDeclaredTypeOfSymbol(symbol), propName);
+                        if (propType) {
+                            error(parent, ts.Diagnostics.Cannot_access_0_1_because_0_is_a_type_but_not_a_namespace_Did_you_mean_to_retrieve_the_type_of_the_property_1_in_0_with_0_1, ts.unescapeLeadingUnderscores(name), ts.unescapeLeadingUnderscores(propName));
+                            return true;
+                        }
+                    }
+                    error(errorLocation, ts.Diagnostics._0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here, ts.unescapeLeadingUnderscores(name));
+                    return true;
+                }
+            }
+            return false;
+        }
+        function checkAndReportErrorForUsingValueAsType(errorLocation, name, meaning) {
+            if (meaning & (788968 & ~1920)) {
+                var symbol = resolveSymbol(resolveName(errorLocation, name, ~788968 & 111551, undefined, undefined, false));
+                if (symbol && !(symbol.flags & 1920)) {
+                    error(errorLocation, ts.Diagnostics._0_refers_to_a_value_but_is_being_used_as_a_type_here_Did_you_mean_typeof_0, ts.unescapeLeadingUnderscores(name));
+                    return true;
+                }
+            }
+            return false;
+        }
+        function isPrimitiveTypeName(name) {
+            return name === "any" || name === "string" || name === "number" || name === "boolean" || name === "never" || name === "unknown";
+        }
+        function checkAndReportErrorForExportingPrimitiveType(errorLocation, name) {
+            if (isPrimitiveTypeName(name) && errorLocation.parent.kind === 263) {
+                error(errorLocation, ts.Diagnostics.Cannot_export_0_Only_local_declarations_can_be_exported_from_a_module, name);
+                return true;
+            }
+            return false;
+        }
+        function checkAndReportErrorForUsingTypeAsValue(errorLocation, name, meaning) {
+            if (meaning & (111551 & ~1024)) {
+                if (isPrimitiveTypeName(name)) {
+                    error(errorLocation, ts.Diagnostics._0_only_refers_to_a_type_but_is_being_used_as_a_value_here, ts.unescapeLeadingUnderscores(name));
+                    return true;
+                }
+                var symbol = resolveSymbol(resolveName(errorLocation, name, 788968 & ~111551, undefined, undefined, false));
+                if (symbol && !(symbol.flags & 1024)) {
+                    var message = isES2015OrLaterConstructorName(name)
+                        ? ts.Diagnostics._0_only_refers_to_a_type_but_is_being_used_as_a_value_here_Do_you_need_to_change_your_target_library_Try_changing_the_lib_compiler_option_to_es2015_or_later
+                        : ts.Diagnostics._0_only_refers_to_a_type_but_is_being_used_as_a_value_here;
+                    error(errorLocation, message, ts.unescapeLeadingUnderscores(name));
+                    return true;
+                }
+            }
+            return false;
+        }
+        function isES2015OrLaterConstructorName(n) {
+            switch (n) {
+                case "Promise":
+                case "Symbol":
+                case "Map":
+                case "WeakMap":
+                case "Set":
+                case "WeakSet":
+                    return true;
+            }
+            return false;
+        }
+        function checkAndReportErrorForUsingNamespaceModuleAsValue(errorLocation, name, meaning) {
+            if (meaning & (111551 & ~1024 & ~788968)) {
+                var symbol = resolveSymbol(resolveName(errorLocation, name, 1024 & ~111551, undefined, undefined, false));
+                if (symbol) {
+                    error(errorLocation, ts.Diagnostics.Cannot_use_namespace_0_as_a_value, ts.unescapeLeadingUnderscores(name));
+                    return true;
+                }
+            }
+            else if (meaning & (788968 & ~1024 & ~111551)) {
+                var symbol = resolveSymbol(resolveName(errorLocation, name, (512 | 1024) & ~788968, undefined, undefined, false));
+                if (symbol) {
+                    error(errorLocation, ts.Diagnostics.Cannot_use_namespace_0_as_a_type, ts.unescapeLeadingUnderscores(name));
+                    return true;
+                }
+            }
+            return false;
+        }
+        function checkResolvedBlockScopedVariable(result, errorLocation) {
+            ts.Debug.assert(!!(result.flags & 2 || result.flags & 32 || result.flags & 384));
+            if (result.flags & (16 | 1 | 67108864) && result.flags & 32) {
+                return;
+            }
+            var declaration = ts.find(result.declarations, function (d) { return ts.isBlockOrCatchScoped(d) || ts.isClassLike(d) || (d.kind === 248); });
+            if (declaration === undefined)
+                return ts.Debug.fail("checkResolvedBlockScopedVariable could not find block-scoped declaration");
+            if (!(declaration.flags & 8388608) && !isBlockScopedNameDeclaredBeforeUse(declaration, errorLocation)) {
+                var diagnosticMessage = void 0;
+                var declarationName = ts.declarationNameToString(ts.getNameOfDeclaration(declaration));
+                if (result.flags & 2) {
+                    diagnosticMessage = error(errorLocation, ts.Diagnostics.Block_scoped_variable_0_used_before_its_declaration, declarationName);
+                }
+                else if (result.flags & 32) {
+                    diagnosticMessage = error(errorLocation, ts.Diagnostics.Class_0_used_before_its_declaration, declarationName);
+                }
+                else if (result.flags & 256) {
+                    diagnosticMessage = error(errorLocation, ts.Diagnostics.Enum_0_used_before_its_declaration, declarationName);
+                }
+                else {
+                    ts.Debug.assert(!!(result.flags & 128));
+                    if (compilerOptions.preserveConstEnums) {
+                        diagnosticMessage = error(errorLocation, ts.Diagnostics.Class_0_used_before_its_declaration, declarationName);
+                    }
+                }
+                if (diagnosticMessage) {
+                    ts.addRelatedInfo(diagnosticMessage, ts.createDiagnosticForNode(declaration, ts.Diagnostics._0_is_declared_here, declarationName));
+                }
+            }
+        }
+        function isSameScopeDescendentOf(initial, parent, stopAt) {
+            return !!parent && !!ts.findAncestor(initial, function (n) { return n === stopAt || ts.isFunctionLike(n) ? "quit" : n === parent; });
+        }
+        function getAnyImportSyntax(node) {
+            switch (node.kind) {
+                case 253:
+                    return node;
+                case 255:
+                    return node.parent;
+                case 256:
+                    return node.parent.parent;
+                case 258:
+                    return node.parent.parent.parent;
+                default:
+                    return undefined;
+            }
+        }
+        function getDeclarationOfAliasSymbol(symbol) {
+            return ts.find(symbol.declarations, isAliasSymbolDeclaration);
+        }
+        function isAliasSymbolDeclaration(node) {
+            return node.kind === 253 ||
+                node.kind === 252 ||
+                node.kind === 255 && !!node.name ||
+                node.kind === 256 ||
+                node.kind === 262 ||
+                node.kind === 258 ||
+                node.kind === 263 ||
+                node.kind === 259 && ts.exportAssignmentIsAlias(node) ||
+                ts.isBinaryExpression(node) && ts.getAssignmentDeclarationKind(node) === 2 && ts.exportAssignmentIsAlias(node) ||
+                ts.isPropertyAccessExpression(node)
+                    && ts.isBinaryExpression(node.parent)
+                    && node.parent.left === node
+                    && node.parent.operatorToken.kind === 62
+                    && isAliasableOrJsExpression(node.parent.right) ||
+                node.kind === 282 ||
+                node.kind === 281 && isAliasableOrJsExpression(node.initializer);
+        }
+        function isAliasableOrJsExpression(e) {
+            return ts.isAliasableExpression(e) || ts.isFunctionExpression(e) && isJSConstructor(e);
+        }
+        function getTargetOfImportEqualsDeclaration(node, dontResolveAlias) {
+            if (node.moduleReference.kind === 265) {
+                var immediate = resolveExternalModuleName(node, ts.getExternalModuleImportEqualsDeclarationExpression(node));
+                var resolved_4 = resolveExternalModuleSymbol(immediate);
+                markSymbolOfAliasDeclarationIfTypeOnly(node, immediate, resolved_4, false);
+                return resolved_4;
+            }
+            var resolved = getSymbolOfPartOfRightHandSideOfImportEquals(node.moduleReference, dontResolveAlias);
+            checkAndReportErrorForResolvingImportAliasToTypeOnlySymbol(node, resolved);
+            return resolved;
+        }
+        function checkAndReportErrorForResolvingImportAliasToTypeOnlySymbol(node, resolved) {
+            if (markSymbolOfAliasDeclarationIfTypeOnly(node, undefined, resolved, false)) {
+                var typeOnlyDeclaration = getTypeOnlyAliasDeclaration(getSymbolOfNode(node));
+                var isExport = ts.typeOnlyDeclarationIsExport(typeOnlyDeclaration);
+                var message = isExport
+                    ? ts.Diagnostics.An_import_alias_cannot_reference_a_declaration_that_was_exported_using_export_type
+                    : ts.Diagnostics.An_import_alias_cannot_reference_a_declaration_that_was_imported_using_import_type;
+                var relatedMessage = isExport
+                    ? ts.Diagnostics._0_was_exported_here
+                    : ts.Diagnostics._0_was_imported_here;
+                var name = ts.unescapeLeadingUnderscores(typeOnlyDeclaration.name.escapedText);
+                ts.addRelatedInfo(error(node.moduleReference, message), ts.createDiagnosticForNode(typeOnlyDeclaration, relatedMessage, name));
+            }
+        }
+        function resolveExportByName(moduleSymbol, name, sourceNode, dontResolveAlias) {
+            var exportValue = moduleSymbol.exports.get("export=");
+            if (exportValue) {
+                return getPropertyOfType(getTypeOfSymbol(exportValue), name);
+            }
+            var exportSymbol = moduleSymbol.exports.get(name);
+            var resolved = resolveSymbol(exportSymbol, dontResolveAlias);
+            markSymbolOfAliasDeclarationIfTypeOnly(sourceNode, exportSymbol, resolved, false);
+            return resolved;
+        }
+        function isSyntacticDefault(node) {
+            return ((ts.isExportAssignment(node) && !node.isExportEquals) || ts.hasModifier(node, 512) || ts.isExportSpecifier(node));
+        }
+        function canHaveSyntheticDefault(file, moduleSymbol, dontResolveAlias) {
+            if (!allowSyntheticDefaultImports) {
+                return false;
+            }
+            if (!file || file.isDeclarationFile) {
+                var defaultExportSymbol = resolveExportByName(moduleSymbol, "default", undefined, true);
+                if (defaultExportSymbol && ts.some(defaultExportSymbol.declarations, isSyntacticDefault)) {
+                    return false;
+                }
+                if (resolveExportByName(moduleSymbol, ts.escapeLeadingUnderscores("__esModule"), undefined, dontResolveAlias)) {
+                    return false;
+                }
+                return true;
+            }
+            if (!ts.isSourceFileJS(file)) {
+                return hasExportAssignmentSymbol(moduleSymbol);
+            }
+            return !file.externalModuleIndicator && !resolveExportByName(moduleSymbol, ts.escapeLeadingUnderscores("__esModule"), undefined, dontResolveAlias);
+        }
+        function getTargetOfImportClause(node, dontResolveAlias) {
+            var moduleSymbol = resolveExternalModuleName(node, node.parent.moduleSpecifier);
+            if (moduleSymbol) {
+                var exportDefaultSymbol = void 0;
+                if (ts.isShorthandAmbientModuleSymbol(moduleSymbol)) {
+                    exportDefaultSymbol = moduleSymbol;
+                }
+                else {
+                    exportDefaultSymbol = resolveExportByName(moduleSymbol, "default", node, dontResolveAlias);
+                }
+                var file = ts.find(moduleSymbol.declarations, ts.isSourceFile);
+                var hasSyntheticDefault = canHaveSyntheticDefault(file, moduleSymbol, dontResolveAlias);
+                if (!exportDefaultSymbol && !hasSyntheticDefault) {
+                    if (hasExportAssignmentSymbol(moduleSymbol)) {
+                        var compilerOptionName = moduleKind >= ts.ModuleKind.ES2015 ? "allowSyntheticDefaultImports" : "esModuleInterop";
+                        var exportEqualsSymbol = moduleSymbol.exports.get("export=");
+                        var exportAssignment = exportEqualsSymbol.valueDeclaration;
+                        var err = error(node.name, ts.Diagnostics.Module_0_can_only_be_default_imported_using_the_1_flag, symbolToString(moduleSymbol), compilerOptionName);
+                        ts.addRelatedInfo(err, ts.createDiagnosticForNode(exportAssignment, ts.Diagnostics.This_module_is_declared_with_using_export_and_can_only_be_used_with_a_default_import_when_using_the_0_flag, compilerOptionName));
+                    }
+                    else {
+                        reportNonDefaultExport(moduleSymbol, node);
+                    }
+                }
+                else if (hasSyntheticDefault) {
+                    var resolved = resolveExternalModuleSymbol(moduleSymbol, dontResolveAlias) || resolveSymbol(moduleSymbol, dontResolveAlias);
+                    markSymbolOfAliasDeclarationIfTypeOnly(node, moduleSymbol, resolved, false);
+                    return resolved;
+                }
+                markSymbolOfAliasDeclarationIfTypeOnly(node, exportDefaultSymbol, undefined, false);
+                return exportDefaultSymbol;
+            }
+        }
+        function reportNonDefaultExport(moduleSymbol, node) {
+            var _a, _b;
+            if ((_a = moduleSymbol.exports) === null || _a === void 0 ? void 0 : _a.has(node.symbol.escapedName)) {
+                error(node.name, ts.Diagnostics.Module_0_has_no_default_export_Did_you_mean_to_use_import_1_from_0_instead, symbolToString(moduleSymbol), symbolToString(node.symbol));
+            }
+            else {
+                var diagnostic = error(node.name, ts.Diagnostics.Module_0_has_no_default_export, symbolToString(moduleSymbol));
+                var exportStar = (_b = moduleSymbol.exports) === null || _b === void 0 ? void 0 : _b.get("__export");
+                if (exportStar) {
+                    var defaultExport = ts.find(exportStar.declarations, function (decl) {
+                        var _a, _b;
+                        return !!(ts.isExportDeclaration(decl) && decl.moduleSpecifier && ((_b = (_a = resolveExternalModuleName(decl, decl.moduleSpecifier)) === null || _a === void 0 ? void 0 : _a.exports) === null || _b === void 0 ? void 0 : _b.has("default")));
+                    });
+                    if (defaultExport) {
+                        ts.addRelatedInfo(diagnostic, ts.createDiagnosticForNode(defaultExport, ts.Diagnostics.export_Asterisk_does_not_re_export_a_default));
+                    }
+                }
+            }
+        }
+        function getTargetOfNamespaceImport(node, dontResolveAlias) {
+            var moduleSpecifier = node.parent.parent.moduleSpecifier;
+            var immediate = resolveExternalModuleName(node, moduleSpecifier);
+            var resolved = resolveESModuleSymbol(immediate, moduleSpecifier, dontResolveAlias, false);
+            markSymbolOfAliasDeclarationIfTypeOnly(node, immediate, resolved, false);
+            return resolved;
+        }
+        function getTargetOfNamespaceExport(node, dontResolveAlias) {
+            var moduleSpecifier = node.parent.moduleSpecifier;
+            var immediate = moduleSpecifier && resolveExternalModuleName(node, moduleSpecifier);
+            var resolved = moduleSpecifier && resolveESModuleSymbol(immediate, moduleSpecifier, dontResolveAlias, false);
+            markSymbolOfAliasDeclarationIfTypeOnly(node, immediate, resolved, false);
+            return resolved;
+        }
+        function combineValueAndTypeSymbols(valueSymbol, typeSymbol) {
+            if (valueSymbol === unknownSymbol && typeSymbol === unknownSymbol) {
+                return unknownSymbol;
+            }
+            if (valueSymbol.flags & (788968 | 1920)) {
+                return valueSymbol;
+            }
+            var result = createSymbol(valueSymbol.flags | typeSymbol.flags, valueSymbol.escapedName);
+            result.declarations = ts.deduplicate(ts.concatenate(valueSymbol.declarations, typeSymbol.declarations), ts.equateValues);
+            result.parent = valueSymbol.parent || typeSymbol.parent;
+            if (valueSymbol.valueDeclaration)
+                result.valueDeclaration = valueSymbol.valueDeclaration;
+            if (typeSymbol.members)
+                result.members = ts.cloneMap(typeSymbol.members);
+            if (valueSymbol.exports)
+                result.exports = ts.cloneMap(valueSymbol.exports);
+            return result;
+        }
+        function getExportOfModule(symbol, specifier, dontResolveAlias) {
+            var _a;
+            if (symbol.flags & 1536) {
+                var name = ((_a = specifier.propertyName) !== null && _a !== void 0 ? _a : specifier.name).escapedText;
+                var exportSymbol = getExportsOfSymbol(symbol).get(name);
+                var resolved = resolveSymbol(exportSymbol, dontResolveAlias);
+                markSymbolOfAliasDeclarationIfTypeOnly(specifier, exportSymbol, resolved, false);
+                return resolved;
+            }
+        }
+        function getPropertyOfVariable(symbol, name) {
+            if (symbol.flags & 3) {
+                var typeAnnotation = symbol.valueDeclaration.type;
+                if (typeAnnotation) {
+                    return resolveSymbol(getPropertyOfType(getTypeFromTypeNode(typeAnnotation), name));
+                }
+            }
+        }
+        function getExternalModuleMember(node, specifier, dontResolveAlias) {
+            var _a;
+            if (dontResolveAlias === void 0) { dontResolveAlias = false; }
+            var moduleSymbol = resolveExternalModuleName(node, node.moduleSpecifier);
+            var name = specifier.propertyName || specifier.name;
+            var suppressInteropError = name.escapedText === "default" && !!(compilerOptions.allowSyntheticDefaultImports || compilerOptions.esModuleInterop);
+            var targetSymbol = resolveESModuleSymbol(moduleSymbol, node.moduleSpecifier, dontResolveAlias, suppressInteropError);
+            if (targetSymbol) {
+                if (name.escapedText) {
+                    if (ts.isShorthandAmbientModuleSymbol(moduleSymbol)) {
+                        return moduleSymbol;
+                    }
+                    var symbolFromVariable = void 0;
+                    if (moduleSymbol && moduleSymbol.exports && moduleSymbol.exports.get("export=")) {
+                        symbolFromVariable = getPropertyOfType(getTypeOfSymbol(targetSymbol), name.escapedText);
+                    }
+                    else {
+                        symbolFromVariable = getPropertyOfVariable(targetSymbol, name.escapedText);
+                    }
+                    symbolFromVariable = resolveSymbol(symbolFromVariable, dontResolveAlias);
+                    var symbolFromModule = getExportOfModule(targetSymbol, specifier, dontResolveAlias);
+                    if (symbolFromModule === undefined && name.escapedText === "default") {
+                        var file = ts.find(moduleSymbol.declarations, ts.isSourceFile);
+                        if (canHaveSyntheticDefault(file, moduleSymbol, dontResolveAlias)) {
+                            symbolFromModule = resolveExternalModuleSymbol(moduleSymbol, dontResolveAlias) || resolveSymbol(moduleSymbol, dontResolveAlias);
+                        }
+                    }
+                    var symbol = symbolFromModule && symbolFromVariable && symbolFromModule !== symbolFromVariable ?
+                        combineValueAndTypeSymbols(symbolFromVariable, symbolFromModule) :
+                        symbolFromModule || symbolFromVariable;
+                    if (!symbol) {
+                        var moduleName = getFullyQualifiedName(moduleSymbol, node);
+                        var declarationName = ts.declarationNameToString(name);
+                        var suggestion = getSuggestedSymbolForNonexistentModule(name, targetSymbol);
+                        if (suggestion !== undefined) {
+                            var suggestionName = symbolToString(suggestion);
+                            var diagnostic = error(name, ts.Diagnostics.Module_0_has_no_exported_member_1_Did_you_mean_2, moduleName, declarationName, suggestionName);
+                            if (suggestion.valueDeclaration) {
+                                ts.addRelatedInfo(diagnostic, ts.createDiagnosticForNode(suggestion.valueDeclaration, ts.Diagnostics._0_is_declared_here, suggestionName));
+                            }
+                        }
+                        else {
+                            if ((_a = moduleSymbol.exports) === null || _a === void 0 ? void 0 : _a.has("default")) {
+                                error(name, ts.Diagnostics.Module_0_has_no_exported_member_1_Did_you_mean_to_use_import_1_from_0_instead, moduleName, declarationName);
+                            }
+                            else {
+                                reportNonExportedMember(node, name, declarationName, moduleSymbol, moduleName);
+                            }
+                        }
+                    }
+                    return symbol;
+                }
+            }
+        }
+        function reportNonExportedMember(node, name, declarationName, moduleSymbol, moduleName) {
+            var _a;
+            var localSymbol = (_a = moduleSymbol.valueDeclaration.locals) === null || _a === void 0 ? void 0 : _a.get(name.escapedText);
+            var exports = moduleSymbol.exports;
+            if (localSymbol) {
+                var exportedEqualsSymbol = exports === null || exports === void 0 ? void 0 : exports.get("export=");
+                if (exportedEqualsSymbol) {
+                    getSymbolIfSameReference(exportedEqualsSymbol, localSymbol) ? reportInvalidImportEqualsExportMember(node, name, declarationName, moduleName) :
+                        error(name, ts.Diagnostics.Module_0_has_no_exported_member_1, moduleName, declarationName);
+                }
+                else {
+                    var exportedSymbol = exports ? ts.find(symbolsToArray(exports), function (symbol) { return !!getSymbolIfSameReference(symbol, localSymbol); }) : undefined;
+                    var diagnostic = exportedSymbol ? error(name, ts.Diagnostics.Module_0_declares_1_locally_but_it_is_exported_as_2, moduleName, declarationName, symbolToString(exportedSymbol)) :
+                        error(name, ts.Diagnostics.Module_0_declares_1_locally_but_it_is_not_exported, moduleName, declarationName);
+                    ts.addRelatedInfo.apply(void 0, __spreadArrays([diagnostic], ts.map(localSymbol.declarations, function (decl, index) {
+                        return ts.createDiagnosticForNode(decl, index === 0 ? ts.Diagnostics._0_is_declared_here : ts.Diagnostics.and_here, declarationName);
+                    })));
+                }
+            }
+            else {
+                error(name, ts.Diagnostics.Module_0_has_no_exported_member_1, moduleName, declarationName);
+            }
+        }
+        function reportInvalidImportEqualsExportMember(node, name, declarationName, moduleName) {
+            if (moduleKind >= ts.ModuleKind.ES2015) {
+                var message = compilerOptions.esModuleInterop ? ts.Diagnostics._0_can_only_be_imported_by_using_a_default_import :
+                    ts.Diagnostics._0_can_only_be_imported_by_turning_on_the_esModuleInterop_flag_and_using_a_default_import;
+                error(name, message, declarationName);
+            }
+            else {
+                if (ts.isInJSFile(node)) {
+                    var message = compilerOptions.esModuleInterop ? ts.Diagnostics._0_can_only_be_imported_by_using_a_require_call_or_by_using_a_default_import :
+                        ts.Diagnostics._0_can_only_be_imported_by_using_a_require_call_or_by_turning_on_the_esModuleInterop_flag_and_using_a_default_import;
+                    error(name, message, declarationName);
+                }
+                else {
+                    var message = compilerOptions.esModuleInterop ? ts.Diagnostics._0_can_only_be_imported_by_using_import_1_require_2_or_a_default_import :
+                        ts.Diagnostics._0_can_only_be_imported_by_using_import_1_require_2_or_by_turning_on_the_esModuleInterop_flag_and_using_a_default_import;
+                    error(name, message, declarationName, declarationName, moduleName);
+                }
+            }
+        }
+        function getTargetOfImportSpecifier(node, dontResolveAlias) {
+            var resolved = getExternalModuleMember(node.parent.parent.parent, node, dontResolveAlias);
+            markSymbolOfAliasDeclarationIfTypeOnly(node, undefined, resolved, false);
+            return resolved;
+        }
+        function getTargetOfNamespaceExportDeclaration(node, dontResolveAlias) {
+            var resolved = resolveExternalModuleSymbol(node.parent.symbol, dontResolveAlias);
+            markSymbolOfAliasDeclarationIfTypeOnly(node, undefined, resolved, false);
+            return resolved;
+        }
+        function getTargetOfExportSpecifier(node, meaning, dontResolveAlias) {
+            var resolved = node.parent.parent.moduleSpecifier ?
+                getExternalModuleMember(node.parent.parent, node, dontResolveAlias) :
+                resolveEntityName(node.propertyName || node.name, meaning, false, dontResolveAlias);
+            markSymbolOfAliasDeclarationIfTypeOnly(node, undefined, resolved, false);
+            return resolved;
+        }
+        function getTargetOfExportAssignment(node, dontResolveAlias) {
+            var expression = ts.isExportAssignment(node) ? node.expression : node.right;
+            var resolved = getTargetOfAliasLikeExpression(expression, dontResolveAlias);
+            markSymbolOfAliasDeclarationIfTypeOnly(node, undefined, resolved, false);
+            return resolved;
+        }
+        function getTargetOfAliasLikeExpression(expression, dontResolveAlias) {
+            if (ts.isClassExpression(expression)) {
+                return checkExpressionCached(expression).symbol;
+            }
+            if (!ts.isEntityName(expression) && !ts.isEntityNameExpression(expression)) {
+                return undefined;
+            }
+            var aliasLike = resolveEntityName(expression, 111551 | 788968 | 1920, true, dontResolveAlias);
+            if (aliasLike) {
+                return aliasLike;
+            }
+            checkExpressionCached(expression);
+            return getNodeLinks(expression).resolvedSymbol;
+        }
+        function getTargetOfPropertyAssignment(node, dontRecursivelyResolve) {
+            var expression = node.initializer;
+            return getTargetOfAliasLikeExpression(expression, dontRecursivelyResolve);
+        }
+        function getTargetOfPropertyAccessExpression(node, dontRecursivelyResolve) {
+            if (!(ts.isBinaryExpression(node.parent) && node.parent.left === node && node.parent.operatorToken.kind === 62)) {
+                return undefined;
+            }
+            return getTargetOfAliasLikeExpression(node.parent.right, dontRecursivelyResolve);
+        }
+        function getTargetOfAliasDeclaration(node, dontRecursivelyResolve) {
+            if (dontRecursivelyResolve === void 0) { dontRecursivelyResolve = false; }
+            switch (node.kind) {
+                case 253:
+                    return getTargetOfImportEqualsDeclaration(node, dontRecursivelyResolve);
+                case 255:
+                    return getTargetOfImportClause(node, dontRecursivelyResolve);
+                case 256:
+                    return getTargetOfNamespaceImport(node, dontRecursivelyResolve);
+                case 262:
+                    return getTargetOfNamespaceExport(node, dontRecursivelyResolve);
+                case 258:
+                    return getTargetOfImportSpecifier(node, dontRecursivelyResolve);
+                case 263:
+                    return getTargetOfExportSpecifier(node, 111551 | 788968 | 1920, dontRecursivelyResolve);
+                case 259:
+                case 209:
+                    return getTargetOfExportAssignment(node, dontRecursivelyResolve);
+                case 252:
+                    return getTargetOfNamespaceExportDeclaration(node, dontRecursivelyResolve);
+                case 282:
+                    return resolveEntityName(node.name, 111551 | 788968 | 1920, true, dontRecursivelyResolve);
+                case 281:
+                    return getTargetOfPropertyAssignment(node, dontRecursivelyResolve);
+                case 194:
+                    return getTargetOfPropertyAccessExpression(node, dontRecursivelyResolve);
+                default:
+                    return ts.Debug.fail();
+            }
+        }
+        function isNonLocalAlias(symbol, excludes) {
+            if (excludes === void 0) { excludes = 111551 | 788968 | 1920; }
+            if (!symbol)
+                return false;
+            return (symbol.flags & (2097152 | excludes)) === 2097152 || !!(symbol.flags & 2097152 && symbol.flags & 67108864);
+        }
+        function resolveSymbol(symbol, dontResolveAlias) {
+            return !dontResolveAlias && isNonLocalAlias(symbol) ? resolveAlias(symbol) : symbol;
+        }
+        function resolveAlias(symbol) {
+            ts.Debug.assert((symbol.flags & 2097152) !== 0, "Should only get Alias here.");
+            var links = getSymbolLinks(symbol);
+            if (!links.target) {
+                links.target = resolvingSymbol;
+                var node = getDeclarationOfAliasSymbol(symbol);
+                if (!node)
+                    return ts.Debug.fail();
+                var target = getTargetOfAliasDeclaration(node);
+                if (links.target === resolvingSymbol) {
+                    links.target = target || unknownSymbol;
+                }
+                else {
+                    error(node, ts.Diagnostics.Circular_definition_of_import_alias_0, symbolToString(symbol));
+                }
+            }
+            else if (links.target === resolvingSymbol) {
+                links.target = unknownSymbol;
+            }
+            return links.target;
+        }
+        function tryResolveAlias(symbol) {
+            var links = getSymbolLinks(symbol);
+            if (links.target !== resolvingSymbol) {
+                return resolveAlias(symbol);
+            }
+            return undefined;
+        }
+        function markSymbolOfAliasDeclarationIfTypeOnly(aliasDeclaration, immediateTarget, finalTarget, overwriteEmpty) {
+            if (!aliasDeclaration)
+                return false;
+            var sourceSymbol = getSymbolOfNode(aliasDeclaration);
+            if (ts.isTypeOnlyImportOrExportDeclaration(aliasDeclaration)) {
+                var links_1 = getSymbolLinks(sourceSymbol);
+                links_1.typeOnlyDeclaration = aliasDeclaration;
+                return true;
+            }
+            var links = getSymbolLinks(sourceSymbol);
+            return markSymbolOfAliasDeclarationIfTypeOnlyWorker(links, immediateTarget, overwriteEmpty)
+                || markSymbolOfAliasDeclarationIfTypeOnlyWorker(links, finalTarget, overwriteEmpty);
+        }
+        function markSymbolOfAliasDeclarationIfTypeOnlyWorker(aliasDeclarationLinks, target, overwriteEmpty) {
+            var _a, _b, _c;
+            if (target && (aliasDeclarationLinks.typeOnlyDeclaration === undefined || overwriteEmpty && aliasDeclarationLinks.typeOnlyDeclaration === false)) {
+                var exportSymbol = (_b = (_a = target.exports) === null || _a === void 0 ? void 0 : _a.get("export=")) !== null && _b !== void 0 ? _b : target;
+                var typeOnly = exportSymbol.declarations && ts.find(exportSymbol.declarations, ts.isTypeOnlyImportOrExportDeclaration);
+                aliasDeclarationLinks.typeOnlyDeclaration = (_c = typeOnly !== null && typeOnly !== void 0 ? typeOnly : getSymbolLinks(exportSymbol).typeOnlyDeclaration) !== null && _c !== void 0 ? _c : false;
+            }
+            return !!aliasDeclarationLinks.typeOnlyDeclaration;
+        }
+        function getTypeOnlyAliasDeclaration(symbol) {
+            if (!(symbol.flags & 2097152)) {
+                return undefined;
+            }
+            var links = getSymbolLinks(symbol);
+            return links.typeOnlyDeclaration || undefined;
+        }
+        function markExportAsReferenced(node) {
+            var symbol = getSymbolOfNode(node);
+            var target = resolveAlias(symbol);
+            if (target) {
+                var markAlias = target === unknownSymbol ||
+                    ((target.flags & 111551) && !isConstEnumOrConstEnumOnlyModule(target) && !getTypeOnlyAliasDeclaration(symbol));
+                if (markAlias) {
+                    markAliasSymbolAsReferenced(symbol);
+                }
+            }
+        }
+        function markAliasSymbolAsReferenced(symbol) {
+            var links = getSymbolLinks(symbol);
+            if (!links.referenced) {
+                links.referenced = true;
+                var node = getDeclarationOfAliasSymbol(symbol);
+                if (!node)
+                    return ts.Debug.fail();
+                if (ts.isInternalModuleImportEqualsDeclaration(node)) {
+                    var target = resolveSymbol(symbol);
+                    if (target === unknownSymbol || target.flags & 111551) {
+                        checkExpressionCached(node.moduleReference);
+                    }
+                }
+            }
+        }
+        function markConstEnumAliasAsReferenced(symbol) {
+            var links = getSymbolLinks(symbol);
+            if (!links.constEnumReferenced) {
+                links.constEnumReferenced = true;
+            }
+        }
+        function getSymbolOfPartOfRightHandSideOfImportEquals(entityName, dontResolveAlias) {
+            if (entityName.kind === 75 && ts.isRightSideOfQualifiedNameOrPropertyAccess(entityName)) {
+                entityName = entityName.parent;
+            }
+            if (entityName.kind === 75 || entityName.parent.kind === 153) {
+                return resolveEntityName(entityName, 1920, false, dontResolveAlias);
+            }
+            else {
+                ts.Debug.assert(entityName.parent.kind === 253);
+                return resolveEntityName(entityName, 111551 | 788968 | 1920, false, dontResolveAlias);
+            }
+        }
+        function getFullyQualifiedName(symbol, containingLocation) {
+            return symbol.parent ? getFullyQualifiedName(symbol.parent, containingLocation) + "." + symbolToString(symbol) : symbolToString(symbol, containingLocation, undefined, 16 | 4);
+        }
+        function resolveEntityName(name, meaning, ignoreErrors, dontResolveAlias, location) {
+            if (ts.nodeIsMissing(name)) {
+                return undefined;
+            }
+            var namespaceMeaning = 1920 | (ts.isInJSFile(name) ? meaning & 111551 : 0);
+            var symbol;
+            if (name.kind === 75) {
+                var message = meaning === namespaceMeaning || ts.nodeIsSynthesized(name) ? ts.Diagnostics.Cannot_find_namespace_0 : getCannotFindNameDiagnosticForName(ts.getFirstIdentifier(name));
+                var symbolFromJSPrototype = ts.isInJSFile(name) && !ts.nodeIsSynthesized(name) ? resolveEntityNameFromAssignmentDeclaration(name, meaning) : undefined;
+                symbol = getMergedSymbol(resolveName(location || name, name.escapedText, meaning, ignoreErrors || symbolFromJSPrototype ? undefined : message, name, true));
+                if (!symbol) {
+                    return getMergedSymbol(symbolFromJSPrototype);
+                }
+            }
+            else if (name.kind === 153 || name.kind === 194) {
+                var left = name.kind === 153 ? name.left : name.expression;
+                var right = name.kind === 153 ? name.right : name.name;
+                var namespace = resolveEntityName(left, namespaceMeaning, ignoreErrors, false, location);
+                if (!namespace || ts.nodeIsMissing(right)) {
+                    return undefined;
+                }
+                else if (namespace === unknownSymbol) {
+                    return namespace;
+                }
+                if (ts.isInJSFile(name)) {
+                    if (namespace.valueDeclaration &&
+                        ts.isVariableDeclaration(namespace.valueDeclaration) &&
+                        namespace.valueDeclaration.initializer &&
+                        isCommonJsRequire(namespace.valueDeclaration.initializer)) {
+                        var moduleName = namespace.valueDeclaration.initializer.arguments[0];
+                        var moduleSym = resolveExternalModuleName(moduleName, moduleName);
+                        if (moduleSym) {
+                            var resolvedModuleSymbol = resolveExternalModuleSymbol(moduleSym);
+                            if (resolvedModuleSymbol) {
+                                namespace = resolvedModuleSymbol;
+                            }
+                        }
+                    }
+                }
+                symbol = getMergedSymbol(getSymbol(getExportsOfSymbol(namespace), right.escapedText, meaning));
+                if (!symbol) {
+                    if (!ignoreErrors) {
+                        error(right, ts.Diagnostics.Namespace_0_has_no_exported_member_1, getFullyQualifiedName(namespace), ts.declarationNameToString(right));
+                    }
+                    return undefined;
+                }
+            }
+            else {
+                throw ts.Debug.assertNever(name, "Unknown entity name kind.");
+            }
+            ts.Debug.assert((ts.getCheckFlags(symbol) & 1) === 0, "Should never get an instantiated symbol here.");
+            if (!ts.nodeIsSynthesized(name) && ts.isEntityName(name) && (symbol.flags & 2097152 || name.parent.kind === 259)) {
+                markSymbolOfAliasDeclarationIfTypeOnly(ts.getAliasDeclarationFromName(name), symbol, undefined, true);
+            }
+            return (symbol.flags & meaning) || dontResolveAlias ? symbol : resolveAlias(symbol);
+        }
+        function resolveEntityNameFromAssignmentDeclaration(name, meaning) {
+            if (isJSDocTypeReference(name.parent)) {
+                var secondaryLocation = getAssignmentDeclarationLocation(name.parent);
+                if (secondaryLocation) {
+                    return resolveName(secondaryLocation, name.escapedText, meaning, undefined, name, true);
+                }
+            }
+        }
+        function getAssignmentDeclarationLocation(node) {
+            var typeAlias = ts.findAncestor(node, function (node) { return !(ts.isJSDocNode(node) || node.flags & 4194304) ? "quit" : ts.isJSDocTypeAlias(node); });
+            if (typeAlias) {
+                return;
+            }
+            var host = ts.getJSDocHost(node);
+            if (ts.isExpressionStatement(host) &&
+                ts.isBinaryExpression(host.expression) &&
+                ts.getAssignmentDeclarationKind(host.expression) === 3) {
+                var symbol = getSymbolOfNode(host.expression.left);
+                if (symbol) {
+                    return getDeclarationOfJSPrototypeContainer(symbol);
+                }
+            }
+            if ((ts.isObjectLiteralMethod(host) || ts.isPropertyAssignment(host)) &&
+                ts.isBinaryExpression(host.parent.parent) &&
+                ts.getAssignmentDeclarationKind(host.parent.parent) === 6) {
+                var symbol = getSymbolOfNode(host.parent.parent.left);
+                if (symbol) {
+                    return getDeclarationOfJSPrototypeContainer(symbol);
+                }
+            }
+            var sig = ts.getEffectiveJSDocHost(node);
+            if (sig && ts.isFunctionLike(sig)) {
+                var symbol = getSymbolOfNode(sig);
+                return symbol && symbol.valueDeclaration;
+            }
+        }
+        function getDeclarationOfJSPrototypeContainer(symbol) {
+            var decl = symbol.parent.valueDeclaration;
+            if (!decl) {
+                return undefined;
+            }
+            var initializer = ts.isAssignmentDeclaration(decl) ? ts.getAssignedExpandoInitializer(decl) :
+                ts.hasOnlyExpressionInitializer(decl) ? ts.getDeclaredExpandoInitializer(decl) :
+                    undefined;
+            return initializer || decl;
+        }
+        function getExpandoSymbol(symbol) {
+            var decl = symbol.valueDeclaration;
+            if (!decl || !ts.isInJSFile(decl) || symbol.flags & 524288 || ts.getExpandoInitializer(decl, false)) {
+                return undefined;
+            }
+            var init = ts.isVariableDeclaration(decl) ? ts.getDeclaredExpandoInitializer(decl) : ts.getAssignedExpandoInitializer(decl);
+            if (init) {
+                var initSymbol = getSymbolOfNode(init);
+                if (initSymbol) {
+                    return mergeJSSymbols(initSymbol, symbol);
+                }
+            }
+        }
+        function resolveExternalModuleName(location, moduleReferenceExpression, ignoreErrors) {
+            return resolveExternalModuleNameWorker(location, moduleReferenceExpression, ignoreErrors ? undefined : ts.Diagnostics.Cannot_find_module_0_or_its_corresponding_type_declarations);
+        }
+        function resolveExternalModuleNameWorker(location, moduleReferenceExpression, moduleNotFoundError, isForAugmentation) {
+            if (isForAugmentation === void 0) { isForAugmentation = false; }
+            return ts.isStringLiteralLike(moduleReferenceExpression)
+                ? resolveExternalModule(location, moduleReferenceExpression.text, moduleNotFoundError, moduleReferenceExpression, isForAugmentation)
+                : undefined;
+        }
+        function resolveExternalModule(location, moduleReference, moduleNotFoundError, errorNode, isForAugmentation) {
+            if (isForAugmentation === void 0) { isForAugmentation = false; }
+            if (ts.startsWith(moduleReference, "@types/")) {
+                var diag = ts.Diagnostics.Cannot_import_type_declaration_files_Consider_importing_0_instead_of_1;
+                var withoutAtTypePrefix = ts.removePrefix(moduleReference, "@types/");
+                error(errorNode, diag, withoutAtTypePrefix, moduleReference);
+            }
+            var ambientModule = tryFindAmbientModule(moduleReference, true);
+            if (ambientModule) {
+                return ambientModule;
+            }
+            var currentSourceFile = ts.getSourceFileOfNode(location);
+            var resolvedModule = ts.getResolvedModule(currentSourceFile, moduleReference);
+            var resolutionDiagnostic = resolvedModule && ts.getResolutionDiagnostic(compilerOptions, resolvedModule);
+            var sourceFile = resolvedModule && !resolutionDiagnostic && host.getSourceFile(resolvedModule.resolvedFileName);
+            if (sourceFile) {
+                if (sourceFile.symbol) {
+                    if (resolvedModule.isExternalLibraryImport && !ts.resolutionExtensionIsTSOrJson(resolvedModule.extension)) {
+                        errorOnImplicitAnyModule(false, errorNode, resolvedModule, moduleReference);
+                    }
+                    return getMergedSymbol(sourceFile.symbol);
+                }
+                if (moduleNotFoundError) {
+                    error(errorNode, ts.Diagnostics.File_0_is_not_a_module, sourceFile.fileName);
+                }
+                return undefined;
+            }
+            if (patternAmbientModules) {
+                var pattern = ts.findBestPatternMatch(patternAmbientModules, function (_) { return _.pattern; }, moduleReference);
+                if (pattern) {
+                    var augmentation = patternAmbientModuleAugmentations && patternAmbientModuleAugmentations.get(moduleReference);
+                    if (augmentation) {
+                        return getMergedSymbol(augmentation);
+                    }
+                    return getMergedSymbol(pattern.symbol);
+                }
+            }
+            if (resolvedModule && !ts.resolutionExtensionIsTSOrJson(resolvedModule.extension) && resolutionDiagnostic === undefined || resolutionDiagnostic === ts.Diagnostics.Could_not_find_a_declaration_file_for_module_0_1_implicitly_has_an_any_type) {
+                if (isForAugmentation) {
+                    var diag = ts.Diagnostics.Invalid_module_name_in_augmentation_Module_0_resolves_to_an_untyped_module_at_1_which_cannot_be_augmented;
+                    error(errorNode, diag, moduleReference, resolvedModule.resolvedFileName);
+                }
+                else {
+                    errorOnImplicitAnyModule(noImplicitAny && !!moduleNotFoundError, errorNode, resolvedModule, moduleReference);
+                }
+                return undefined;
+            }
+            if (moduleNotFoundError) {
+                if (resolvedModule) {
+                    var redirect = host.getProjectReferenceRedirect(resolvedModule.resolvedFileName);
+                    if (redirect) {
+                        error(errorNode, ts.Diagnostics.Output_file_0_has_not_been_built_from_source_file_1, redirect, resolvedModule.resolvedFileName);
+                        return undefined;
+                    }
+                }
+                if (resolutionDiagnostic) {
+                    error(errorNode, resolutionDiagnostic, moduleReference, resolvedModule.resolvedFileName);
+                }
+                else {
+                    var tsExtension = ts.tryExtractTSExtension(moduleReference);
+                    if (tsExtension) {
+                        var diag = ts.Diagnostics.An_import_path_cannot_end_with_a_0_extension_Consider_importing_1_instead;
+                        error(errorNode, diag, tsExtension, ts.removeExtension(moduleReference, tsExtension));
+                    }
+                    else if (!compilerOptions.resolveJsonModule &&
+                        ts.fileExtensionIs(moduleReference, ".json") &&
+                        ts.getEmitModuleResolutionKind(compilerOptions) === ts.ModuleResolutionKind.NodeJs &&
+                        ts.hasJsonModuleEmitEnabled(compilerOptions)) {
+                        error(errorNode, ts.Diagnostics.Cannot_find_module_0_Consider_using_resolveJsonModule_to_import_module_with_json_extension, moduleReference);
+                    }
+                    else {
+                        error(errorNode, moduleNotFoundError, moduleReference);
+                    }
+                }
+            }
+            return undefined;
+        }
+        function errorOnImplicitAnyModule(isError, errorNode, _a, moduleReference) {
+            var packageId = _a.packageId, resolvedFileName = _a.resolvedFileName;
+            var errorInfo = !ts.isExternalModuleNameRelative(moduleReference) && packageId
+                ? typesPackageExists(packageId.name)
+                    ? ts.chainDiagnosticMessages(undefined, ts.Diagnostics.If_the_0_package_actually_exposes_this_module_consider_sending_a_pull_request_to_amend_https_Colon_Slash_Slashgithub_com_SlashDefinitelyTyped_SlashDefinitelyTyped_Slashtree_Slashmaster_Slashtypes_Slash_1, packageId.name, ts.mangleScopedPackageName(packageId.name))
+                    : ts.chainDiagnosticMessages(undefined, ts.Diagnostics.Try_npm_install_types_Slash_1_if_it_exists_or_add_a_new_declaration_d_ts_file_containing_declare_module_0, moduleReference, ts.mangleScopedPackageName(packageId.name))
+                : undefined;
+            errorOrSuggestion(isError, errorNode, ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.Could_not_find_a_declaration_file_for_module_0_1_implicitly_has_an_any_type, moduleReference, resolvedFileName));
+        }
+        function typesPackageExists(packageName) {
+            return getPackagesSet().has(ts.getTypesPackageName(packageName));
+        }
+        function resolveExternalModuleSymbol(moduleSymbol, dontResolveAlias) {
+            if (moduleSymbol === null || moduleSymbol === void 0 ? void 0 : moduleSymbol.exports) {
+                var exportEquals = resolveSymbol(moduleSymbol.exports.get("export="), dontResolveAlias);
+                var exported = getCommonJsExportEquals(getMergedSymbol(exportEquals), getMergedSymbol(moduleSymbol));
+                return getMergedSymbol(exported) || moduleSymbol;
+            }
+            return undefined;
+        }
+        function getCommonJsExportEquals(exported, moduleSymbol) {
+            if (!exported || exported === unknownSymbol || exported === moduleSymbol || moduleSymbol.exports.size === 1 || exported.flags & 2097152) {
+                return exported;
+            }
+            var links = getSymbolLinks(exported);
+            if (links.cjsExportMerged) {
+                return links.cjsExportMerged;
+            }
+            var merged = exported.flags & 33554432 ? exported : cloneSymbol(exported);
+            merged.flags = merged.flags | 512;
+            if (merged.exports === undefined) {
+                merged.exports = ts.createSymbolTable();
+            }
+            moduleSymbol.exports.forEach(function (s, name) {
+                if (name === "export=")
+                    return;
+                merged.exports.set(name, merged.exports.has(name) ? mergeSymbol(merged.exports.get(name), s) : s);
+            });
+            getSymbolLinks(merged).cjsExportMerged = merged;
+            return links.cjsExportMerged = merged;
+        }
+        function resolveESModuleSymbol(moduleSymbol, referencingLocation, dontResolveAlias, suppressInteropError) {
+            var symbol = resolveExternalModuleSymbol(moduleSymbol, dontResolveAlias);
+            if (!dontResolveAlias && symbol) {
+                if (!suppressInteropError && !(symbol.flags & (1536 | 3)) && !ts.getDeclarationOfKind(symbol, 290)) {
+                    var compilerOptionName = moduleKind >= ts.ModuleKind.ES2015
+                        ? "allowSyntheticDefaultImports"
+                        : "esModuleInterop";
+                    error(referencingLocation, ts.Diagnostics.This_module_can_only_be_referenced_with_ECMAScript_imports_Slashexports_by_turning_on_the_0_flag_and_referencing_its_default_export, compilerOptionName);
+                    return symbol;
+                }
+                if (compilerOptions.esModuleInterop) {
+                    var referenceParent = referencingLocation.parent;
+                    if ((ts.isImportDeclaration(referenceParent) && ts.getNamespaceDeclarationNode(referenceParent)) ||
+                        ts.isImportCall(referenceParent)) {
+                        var type = getTypeOfSymbol(symbol);
+                        var sigs = getSignaturesOfStructuredType(type, 0);
+                        if (!sigs || !sigs.length) {
+                            sigs = getSignaturesOfStructuredType(type, 1);
+                        }
+                        if (sigs && sigs.length) {
+                            var moduleType = getTypeWithSyntheticDefaultImportType(type, symbol, moduleSymbol);
+                            var result = createSymbol(symbol.flags, symbol.escapedName);
+                            result.declarations = symbol.declarations ? symbol.declarations.slice() : [];
+                            result.parent = symbol.parent;
+                            result.target = symbol;
+                            result.originatingImport = referenceParent;
+                            if (symbol.valueDeclaration)
+                                result.valueDeclaration = symbol.valueDeclaration;
+                            if (symbol.constEnumOnlyModule)
+                                result.constEnumOnlyModule = true;
+                            if (symbol.members)
+                                result.members = ts.cloneMap(symbol.members);
+                            if (symbol.exports)
+                                result.exports = ts.cloneMap(symbol.exports);
+                            var resolvedModuleType = resolveStructuredTypeMembers(moduleType);
+                            result.type = createAnonymousType(result, resolvedModuleType.members, ts.emptyArray, ts.emptyArray, resolvedModuleType.stringIndexInfo, resolvedModuleType.numberIndexInfo);
+                            return result;
+                        }
+                    }
+                }
+            }
+            return symbol;
+        }
+        function hasExportAssignmentSymbol(moduleSymbol) {
+            return moduleSymbol.exports.get("export=") !== undefined;
+        }
+        function getExportsOfModuleAsArray(moduleSymbol) {
+            return symbolsToArray(getExportsOfModule(moduleSymbol));
+        }
+        function getExportsAndPropertiesOfModule(moduleSymbol) {
+            var exports = getExportsOfModuleAsArray(moduleSymbol);
+            var exportEquals = resolveExternalModuleSymbol(moduleSymbol);
+            if (exportEquals !== moduleSymbol) {
+                ts.addRange(exports, getPropertiesOfType(getTypeOfSymbol(exportEquals)));
+            }
+            return exports;
+        }
+        function tryGetMemberInModuleExports(memberName, moduleSymbol) {
+            var symbolTable = getExportsOfModule(moduleSymbol);
+            if (symbolTable) {
+                return symbolTable.get(memberName);
+            }
+        }
+        function tryGetMemberInModuleExportsAndProperties(memberName, moduleSymbol) {
+            var symbol = tryGetMemberInModuleExports(memberName, moduleSymbol);
+            if (symbol) {
+                return symbol;
+            }
+            var exportEquals = resolveExternalModuleSymbol(moduleSymbol);
+            if (exportEquals === moduleSymbol) {
+                return undefined;
+            }
+            var type = getTypeOfSymbol(exportEquals);
+            return type.flags & 131068 ||
+                ts.getObjectFlags(type) & 1 ||
+                isArrayOrTupleLikeType(type)
+                ? undefined
+                : getPropertyOfType(type, memberName);
+        }
+        function getExportsOfSymbol(symbol) {
+            return symbol.flags & 6256 ? getResolvedMembersOrExportsOfSymbol(symbol, "resolvedExports") :
+                symbol.flags & 1536 ? getExportsOfModule(symbol) :
+                    symbol.exports || emptySymbols;
+        }
+        function getExportsOfModule(moduleSymbol) {
+            var links = getSymbolLinks(moduleSymbol);
+            return links.resolvedExports || (links.resolvedExports = getExportsOfModuleWorker(moduleSymbol));
+        }
+        function extendExportSymbols(target, source, lookupTable, exportNode) {
+            if (!source)
+                return;
+            source.forEach(function (sourceSymbol, id) {
+                if (id === "default")
+                    return;
+                var targetSymbol = target.get(id);
+                if (!targetSymbol) {
+                    target.set(id, sourceSymbol);
+                    if (lookupTable && exportNode) {
+                        lookupTable.set(id, {
+                            specifierText: ts.getTextOfNode(exportNode.moduleSpecifier)
+                        });
+                    }
+                }
+                else if (lookupTable && exportNode && targetSymbol && resolveSymbol(targetSymbol) !== resolveSymbol(sourceSymbol)) {
+                    var collisionTracker = lookupTable.get(id);
+                    if (!collisionTracker.exportsWithDuplicate) {
+                        collisionTracker.exportsWithDuplicate = [exportNode];
+                    }
+                    else {
+                        collisionTracker.exportsWithDuplicate.push(exportNode);
+                    }
+                }
+            });
+        }
+        function getExportsOfModuleWorker(moduleSymbol) {
+            var visitedSymbols = [];
+            moduleSymbol = resolveExternalModuleSymbol(moduleSymbol);
+            return visit(moduleSymbol) || emptySymbols;
+            function visit(symbol) {
+                if (!(symbol && symbol.exports && ts.pushIfUnique(visitedSymbols, symbol))) {
+                    return;
+                }
+                var symbols = ts.cloneMap(symbol.exports);
+                var exportStars = symbol.exports.get("__export");
+                if (exportStars) {
+                    var nestedSymbols = ts.createSymbolTable();
+                    var lookupTable_1 = ts.createMap();
+                    for (var _i = 0, _a = exportStars.declarations; _i < _a.length; _i++) {
+                        var node = _a[_i];
+                        var resolvedModule = resolveExternalModuleName(node, node.moduleSpecifier);
+                        var exportedSymbols = visit(resolvedModule);
+                        extendExportSymbols(nestedSymbols, exportedSymbols, lookupTable_1, node);
+                    }
+                    lookupTable_1.forEach(function (_a, id) {
+                        var exportsWithDuplicate = _a.exportsWithDuplicate;
+                        if (id === "export=" || !(exportsWithDuplicate && exportsWithDuplicate.length) || symbols.has(id)) {
+                            return;
+                        }
+                        for (var _i = 0, exportsWithDuplicate_1 = exportsWithDuplicate; _i < exportsWithDuplicate_1.length; _i++) {
+                            var node = exportsWithDuplicate_1[_i];
+                            diagnostics.add(ts.createDiagnosticForNode(node, ts.Diagnostics.Module_0_has_already_exported_a_member_named_1_Consider_explicitly_re_exporting_to_resolve_the_ambiguity, lookupTable_1.get(id).specifierText, ts.unescapeLeadingUnderscores(id)));
+                        }
+                    });
+                    extendExportSymbols(symbols, nestedSymbols);
+                }
+                return symbols;
+            }
+        }
+        function getMergedSymbol(symbol) {
+            var merged;
+            return symbol && symbol.mergeId && (merged = mergedSymbols[symbol.mergeId]) ? merged : symbol;
+        }
+        function getSymbolOfNode(node) {
+            return getMergedSymbol(node.symbol && getLateBoundSymbol(node.symbol));
+        }
+        function getParentOfSymbol(symbol) {
+            return getMergedSymbol(symbol.parent && getLateBoundSymbol(symbol.parent));
+        }
+        function getAlternativeContainingModules(symbol, enclosingDeclaration) {
+            var containingFile = ts.getSourceFileOfNode(enclosingDeclaration);
+            var id = "" + getNodeId(containingFile);
+            var links = getSymbolLinks(symbol);
+            var results;
+            if (links.extendedContainersByFile && (results = links.extendedContainersByFile.get(id))) {
+                return results;
+            }
+            if (containingFile && containingFile.imports) {
+                for (var _i = 0, _a = containingFile.imports; _i < _a.length; _i++) {
+                    var importRef = _a[_i];
+                    if (ts.nodeIsSynthesized(importRef))
+                        continue;
+                    var resolvedModule = resolveExternalModuleName(enclosingDeclaration, importRef, true);
+                    if (!resolvedModule)
+                        continue;
+                    var ref = getAliasForSymbolInContainer(resolvedModule, symbol);
+                    if (!ref)
+                        continue;
+                    results = ts.append(results, resolvedModule);
+                }
+                if (ts.length(results)) {
+                    (links.extendedContainersByFile || (links.extendedContainersByFile = ts.createMap())).set(id, results);
+                    return results;
+                }
+            }
+            if (links.extendedContainers) {
+                return links.extendedContainers;
+            }
+            var otherFiles = host.getSourceFiles();
+            for (var _b = 0, otherFiles_1 = otherFiles; _b < otherFiles_1.length; _b++) {
+                var file = otherFiles_1[_b];
+                if (!ts.isExternalModule(file))
+                    continue;
+                var sym = getSymbolOfNode(file);
+                var ref = getAliasForSymbolInContainer(sym, symbol);
+                if (!ref)
+                    continue;
+                results = ts.append(results, sym);
+            }
+            return links.extendedContainers = results || ts.emptyArray;
+        }
+        function getContainersOfSymbol(symbol, enclosingDeclaration) {
+            var container = getParentOfSymbol(symbol);
+            if (container && !(symbol.flags & 262144)) {
+                var additionalContainers = ts.mapDefined(container.declarations, fileSymbolIfFileSymbolExportEqualsContainer);
+                var reexportContainers = enclosingDeclaration && getAlternativeContainingModules(symbol, enclosingDeclaration);
+                if (enclosingDeclaration && getAccessibleSymbolChain(container, enclosingDeclaration, 1920, false)) {
+                    return ts.concatenate(ts.concatenate([container], additionalContainers), reexportContainers);
+                }
+                var res = ts.append(additionalContainers, container);
+                return ts.concatenate(res, reexportContainers);
+            }
+            var candidates = ts.mapDefined(symbol.declarations, function (d) {
+                if (!ts.isAmbientModule(d) && d.parent && hasNonGlobalAugmentationExternalModuleSymbol(d.parent)) {
+                    return getSymbolOfNode(d.parent);
+                }
+                if (ts.isClassExpression(d) && ts.isBinaryExpression(d.parent) && d.parent.operatorToken.kind === 62 && ts.isAccessExpression(d.parent.left) && ts.isEntityNameExpression(d.parent.left.expression)) {
+                    if (ts.isModuleExportsAccessExpression(d.parent.left) || ts.isExportsIdentifier(d.parent.left.expression)) {
+                        return getSymbolOfNode(ts.getSourceFileOfNode(d));
+                    }
+                    checkExpressionCached(d.parent.left.expression);
+                    return getNodeLinks(d.parent.left.expression).resolvedSymbol;
+                }
+            });
+            if (!ts.length(candidates)) {
+                return undefined;
+            }
+            return ts.mapDefined(candidates, function (candidate) { return getAliasForSymbolInContainer(candidate, symbol) ? candidate : undefined; });
+            function fileSymbolIfFileSymbolExportEqualsContainer(d) {
+                return container && getFileSymbolIfFileSymbolExportEqualsContainer(d, container);
+            }
+        }
+        function getFileSymbolIfFileSymbolExportEqualsContainer(d, container) {
+            var fileSymbol = getExternalModuleContainer(d);
+            var exported = fileSymbol && fileSymbol.exports && fileSymbol.exports.get("export=");
+            return exported && getSymbolIfSameReference(exported, container) ? fileSymbol : undefined;
+        }
+        function getAliasForSymbolInContainer(container, symbol) {
+            if (container === getParentOfSymbol(symbol)) {
+                return symbol;
+            }
+            var exportEquals = container.exports && container.exports.get("export=");
+            if (exportEquals && getSymbolIfSameReference(exportEquals, symbol)) {
+                return container;
+            }
+            var exports = getExportsOfSymbol(container);
+            var quick = exports.get(symbol.escapedName);
+            if (quick && getSymbolIfSameReference(quick, symbol)) {
+                return quick;
+            }
+            return ts.forEachEntry(exports, function (exported) {
+                if (getSymbolIfSameReference(exported, symbol)) {
+                    return exported;
+                }
+            });
+        }
+        function getSymbolIfSameReference(s1, s2) {
+            if (getMergedSymbol(resolveSymbol(getMergedSymbol(s1))) === getMergedSymbol(resolveSymbol(getMergedSymbol(s2)))) {
+                return s1;
+            }
+        }
+        function getExportSymbolOfValueSymbolIfExported(symbol) {
+            return getMergedSymbol(symbol && (symbol.flags & 1048576) !== 0 ? symbol.exportSymbol : symbol);
+        }
+        function symbolIsValue(symbol) {
+            return !!(symbol.flags & 111551 || symbol.flags & 2097152 && resolveAlias(symbol).flags & 111551 && !getTypeOnlyAliasDeclaration(symbol));
+        }
+        function findConstructorDeclaration(node) {
+            var members = node.members;
+            for (var _i = 0, members_3 = members; _i < members_3.length; _i++) {
+                var member = members_3[_i];
+                if (member.kind === 162 && ts.nodeIsPresent(member.body)) {
+                    return member;
+                }
+            }
+        }
+        function createType(flags) {
+            var result = new Type(checker, flags);
+            typeCount++;
+            result.id = typeCount;
+            return result;
+        }
+        function createIntrinsicType(kind, intrinsicName, objectFlags) {
+            if (objectFlags === void 0) { objectFlags = 0; }
+            var type = createType(kind);
+            type.intrinsicName = intrinsicName;
+            type.objectFlags = objectFlags;
+            return type;
+        }
+        function createBooleanType(trueFalseTypes) {
+            var type = getUnionType(trueFalseTypes);
+            type.flags |= 16;
+            type.intrinsicName = "boolean";
+            return type;
+        }
+        function createObjectType(objectFlags, symbol) {
+            var type = createType(524288);
+            type.objectFlags = objectFlags;
+            type.symbol = symbol;
+            type.members = undefined;
+            type.properties = undefined;
+            type.callSignatures = undefined;
+            type.constructSignatures = undefined;
+            type.stringIndexInfo = undefined;
+            type.numberIndexInfo = undefined;
+            return type;
+        }
+        function createTypeofType() {
+            return getUnionType(ts.arrayFrom(typeofEQFacts.keys(), getLiteralType));
+        }
+        function createTypeParameter(symbol) {
+            var type = createType(262144);
+            if (symbol)
+                type.symbol = symbol;
+            return type;
+        }
+        function isReservedMemberName(name) {
+            return name.charCodeAt(0) === 95 &&
+                name.charCodeAt(1) === 95 &&
+                name.charCodeAt(2) !== 95 &&
+                name.charCodeAt(2) !== 64 &&
+                name.charCodeAt(2) !== 35;
+        }
+        function getNamedMembers(members) {
+            var result;
+            members.forEach(function (symbol, id) {
+                if (!isReservedMemberName(id) && symbolIsValue(symbol)) {
+                    (result || (result = [])).push(symbol);
+                }
+            });
+            return result || ts.emptyArray;
+        }
+        function setStructuredTypeMembers(type, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo) {
+            type.members = members;
+            type.properties = members === emptySymbols ? ts.emptyArray : getNamedMembers(members);
+            type.callSignatures = callSignatures;
+            type.constructSignatures = constructSignatures;
+            type.stringIndexInfo = stringIndexInfo;
+            type.numberIndexInfo = numberIndexInfo;
+            return type;
+        }
+        function createAnonymousType(symbol, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo) {
+            return setStructuredTypeMembers(createObjectType(16, symbol), members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
+        }
+        function forEachSymbolTableInScope(enclosingDeclaration, callback) {
+            var result;
+            var _loop_7 = function (location) {
+                if (location.locals && !isGlobalSourceFile(location)) {
+                    if (result = callback(location.locals)) {
+                        return { value: result };
+                    }
+                }
+                switch (location.kind) {
+                    case 290:
+                        if (!ts.isExternalOrCommonJsModule(location)) {
+                            break;
+                        }
+                    case 249:
+                        var sym = getSymbolOfNode(location);
+                        if (result = callback((sym === null || sym === void 0 ? void 0 : sym.exports) || emptySymbols)) {
+                            return { value: result };
+                        }
+                        break;
+                    case 245:
+                    case 214:
+                    case 246:
+                        var table_1;
+                        (getSymbolOfNode(location).members || emptySymbols).forEach(function (memberSymbol, key) {
+                            if (memberSymbol.flags & (788968 & ~67108864)) {
+                                (table_1 || (table_1 = ts.createSymbolTable())).set(key, memberSymbol);
+                            }
+                        });
+                        if (table_1 && (result = callback(table_1))) {
+                            return { value: result };
+                        }
+                        break;
+                }
+            };
+            for (var location = enclosingDeclaration; location; location = location.parent) {
+                var state_2 = _loop_7(location);
+                if (typeof state_2 === "object")
+                    return state_2.value;
+            }
+            return callback(globals);
+        }
+        function getQualifiedLeftMeaning(rightMeaning) {
+            return rightMeaning === 111551 ? 111551 : 1920;
+        }
+        function getAccessibleSymbolChain(symbol, enclosingDeclaration, meaning, useOnlyExternalAliasing, visitedSymbolTablesMap) {
+            if (visitedSymbolTablesMap === void 0) { visitedSymbolTablesMap = ts.createMap(); }
+            if (!(symbol && !isPropertyOrMethodDeclarationSymbol(symbol))) {
+                return undefined;
+            }
+            var id = "" + getSymbolId(symbol);
+            var visitedSymbolTables = visitedSymbolTablesMap.get(id);
+            if (!visitedSymbolTables) {
+                visitedSymbolTablesMap.set(id, visitedSymbolTables = []);
+            }
+            return forEachSymbolTableInScope(enclosingDeclaration, getAccessibleSymbolChainFromSymbolTable);
+            function getAccessibleSymbolChainFromSymbolTable(symbols, ignoreQualification) {
+                if (!ts.pushIfUnique(visitedSymbolTables, symbols)) {
+                    return undefined;
+                }
+                var result = trySymbolTable(symbols, ignoreQualification);
+                visitedSymbolTables.pop();
+                return result;
+            }
+            function canQualifySymbol(symbolFromSymbolTable, meaning) {
+                return !needsQualification(symbolFromSymbolTable, enclosingDeclaration, meaning) ||
+                    !!getAccessibleSymbolChain(symbolFromSymbolTable.parent, enclosingDeclaration, getQualifiedLeftMeaning(meaning), useOnlyExternalAliasing, visitedSymbolTablesMap);
+            }
+            function isAccessible(symbolFromSymbolTable, resolvedAliasSymbol, ignoreQualification) {
+                return (symbol === (resolvedAliasSymbol || symbolFromSymbolTable) || getMergedSymbol(symbol) === getMergedSymbol(resolvedAliasSymbol || symbolFromSymbolTable)) &&
+                    !ts.some(symbolFromSymbolTable.declarations, hasNonGlobalAugmentationExternalModuleSymbol) &&
+                    (ignoreQualification || canQualifySymbol(getMergedSymbol(symbolFromSymbolTable), meaning));
+            }
+            function trySymbolTable(symbols, ignoreQualification) {
+                if (isAccessible(symbols.get(symbol.escapedName), undefined, ignoreQualification)) {
+                    return [symbol];
+                }
+                var result = ts.forEachEntry(symbols, function (symbolFromSymbolTable) {
+                    if (symbolFromSymbolTable.flags & 2097152
+                        && symbolFromSymbolTable.escapedName !== "export="
+                        && symbolFromSymbolTable.escapedName !== "default"
+                        && !(ts.isUMDExportSymbol(symbolFromSymbolTable) && enclosingDeclaration && ts.isExternalModule(ts.getSourceFileOfNode(enclosingDeclaration)))
+                        && (!useOnlyExternalAliasing || ts.some(symbolFromSymbolTable.declarations, ts.isExternalModuleImportEqualsDeclaration))
+                        && (ignoreQualification || !ts.getDeclarationOfKind(symbolFromSymbolTable, 263))) {
+                        var resolvedImportedSymbol = resolveAlias(symbolFromSymbolTable);
+                        var candidate = getCandidateListForSymbol(symbolFromSymbolTable, resolvedImportedSymbol, ignoreQualification);
+                        if (candidate) {
+                            return candidate;
+                        }
+                    }
+                    if (symbolFromSymbolTable.escapedName === symbol.escapedName && symbolFromSymbolTable.exportSymbol) {
+                        if (isAccessible(getMergedSymbol(symbolFromSymbolTable.exportSymbol), undefined, ignoreQualification)) {
+                            return [symbol];
+                        }
+                    }
+                });
+                return result || (symbols === globals ? getCandidateListForSymbol(globalThisSymbol, globalThisSymbol, ignoreQualification) : undefined);
+            }
+            function getCandidateListForSymbol(symbolFromSymbolTable, resolvedImportedSymbol, ignoreQualification) {
+                if (isAccessible(symbolFromSymbolTable, resolvedImportedSymbol, ignoreQualification)) {
+                    return [symbolFromSymbolTable];
+                }
+                var candidateTable = getExportsOfSymbol(resolvedImportedSymbol);
+                var accessibleSymbolsFromExports = candidateTable && getAccessibleSymbolChainFromSymbolTable(candidateTable, true);
+                if (accessibleSymbolsFromExports && canQualifySymbol(symbolFromSymbolTable, getQualifiedLeftMeaning(meaning))) {
+                    return [symbolFromSymbolTable].concat(accessibleSymbolsFromExports);
+                }
+            }
+        }
+        function needsQualification(symbol, enclosingDeclaration, meaning) {
+            var qualify = false;
+            forEachSymbolTableInScope(enclosingDeclaration, function (symbolTable) {
+                var symbolFromSymbolTable = getMergedSymbol(symbolTable.get(symbol.escapedName));
+                if (!symbolFromSymbolTable) {
+                    return false;
+                }
+                if (symbolFromSymbolTable === symbol) {
+                    return true;
+                }
+                symbolFromSymbolTable = (symbolFromSymbolTable.flags & 2097152 && !ts.getDeclarationOfKind(symbolFromSymbolTable, 263)) ? resolveAlias(symbolFromSymbolTable) : symbolFromSymbolTable;
+                if (symbolFromSymbolTable.flags & meaning) {
+                    qualify = true;
+                    return true;
+                }
+                return false;
+            });
+            return qualify;
+        }
+        function isPropertyOrMethodDeclarationSymbol(symbol) {
+            if (symbol.declarations && symbol.declarations.length) {
+                for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+                    var declaration = _a[_i];
+                    switch (declaration.kind) {
+                        case 159:
+                        case 161:
+                        case 163:
+                        case 164:
+                            continue;
+                        default:
+                            return false;
+                    }
+                }
+                return true;
+            }
+            return false;
+        }
+        function isTypeSymbolAccessible(typeSymbol, enclosingDeclaration) {
+            var access = isSymbolAccessible(typeSymbol, enclosingDeclaration, 788968, false);
+            return access.accessibility === 0;
+        }
+        function isValueSymbolAccessible(typeSymbol, enclosingDeclaration) {
+            var access = isSymbolAccessible(typeSymbol, enclosingDeclaration, 111551, false);
+            return access.accessibility === 0;
+        }
+        function isAnySymbolAccessible(symbols, enclosingDeclaration, initialSymbol, meaning, shouldComputeAliasesToMakeVisible) {
+            if (!ts.length(symbols))
+                return;
+            var hadAccessibleChain;
+            var earlyModuleBail = false;
+            for (var _i = 0, _a = symbols; _i < _a.length; _i++) {
+                var symbol = _a[_i];
+                var accessibleSymbolChain = getAccessibleSymbolChain(symbol, enclosingDeclaration, meaning, false);
+                if (accessibleSymbolChain) {
+                    hadAccessibleChain = symbol;
+                    var hasAccessibleDeclarations = hasVisibleDeclarations(accessibleSymbolChain[0], shouldComputeAliasesToMakeVisible);
+                    if (hasAccessibleDeclarations) {
+                        return hasAccessibleDeclarations;
+                    }
+                }
+                else {
+                    if (ts.some(symbol.declarations, hasNonGlobalAugmentationExternalModuleSymbol)) {
+                        if (shouldComputeAliasesToMakeVisible) {
+                            earlyModuleBail = true;
+                            continue;
+                        }
+                        return {
+                            accessibility: 0
+                        };
+                    }
+                }
+                var containers = getContainersOfSymbol(symbol, enclosingDeclaration);
+                var firstDecl = !!ts.length(symbol.declarations) && ts.first(symbol.declarations);
+                if (!ts.length(containers) && meaning & 111551 && firstDecl && ts.isObjectLiteralExpression(firstDecl)) {
+                    if (firstDecl.parent && ts.isVariableDeclaration(firstDecl.parent) && firstDecl === firstDecl.parent.initializer) {
+                        containers = [getSymbolOfNode(firstDecl.parent)];
+                    }
+                }
+                var parentResult = isAnySymbolAccessible(containers, enclosingDeclaration, initialSymbol, initialSymbol === symbol ? getQualifiedLeftMeaning(meaning) : meaning, shouldComputeAliasesToMakeVisible);
+                if (parentResult) {
+                    return parentResult;
+                }
+            }
+            if (earlyModuleBail) {
+                return {
+                    accessibility: 0
+                };
+            }
+            if (hadAccessibleChain) {
+                return {
+                    accessibility: 1,
+                    errorSymbolName: symbolToString(initialSymbol, enclosingDeclaration, meaning),
+                    errorModuleName: hadAccessibleChain !== initialSymbol ? symbolToString(hadAccessibleChain, enclosingDeclaration, 1920) : undefined,
+                };
+            }
+        }
+        function isSymbolAccessible(symbol, enclosingDeclaration, meaning, shouldComputeAliasesToMakeVisible) {
+            if (symbol && enclosingDeclaration) {
+                var result = isAnySymbolAccessible([symbol], enclosingDeclaration, symbol, meaning, shouldComputeAliasesToMakeVisible);
+                if (result) {
+                    return result;
+                }
+                var symbolExternalModule = ts.forEach(symbol.declarations, getExternalModuleContainer);
+                if (symbolExternalModule) {
+                    var enclosingExternalModule = getExternalModuleContainer(enclosingDeclaration);
+                    if (symbolExternalModule !== enclosingExternalModule) {
+                        return {
+                            accessibility: 2,
+                            errorSymbolName: symbolToString(symbol, enclosingDeclaration, meaning),
+                            errorModuleName: symbolToString(symbolExternalModule)
+                        };
+                    }
+                }
+                return {
+                    accessibility: 1,
+                    errorSymbolName: symbolToString(symbol, enclosingDeclaration, meaning),
+                };
+            }
+            return { accessibility: 0 };
+        }
+        function getExternalModuleContainer(declaration) {
+            var node = ts.findAncestor(declaration, hasExternalModuleSymbol);
+            return node && getSymbolOfNode(node);
+        }
+        function hasExternalModuleSymbol(declaration) {
+            return ts.isAmbientModule(declaration) || (declaration.kind === 290 && ts.isExternalOrCommonJsModule(declaration));
+        }
+        function hasNonGlobalAugmentationExternalModuleSymbol(declaration) {
+            return ts.isModuleWithStringLiteralName(declaration) || (declaration.kind === 290 && ts.isExternalOrCommonJsModule(declaration));
+        }
+        function hasVisibleDeclarations(symbol, shouldComputeAliasToMakeVisible) {
+            var aliasesToMakeVisible;
+            if (!ts.every(ts.filter(symbol.declarations, function (d) { return d.kind !== 75; }), getIsDeclarationVisible)) {
+                return undefined;
+            }
+            return { accessibility: 0, aliasesToMakeVisible: aliasesToMakeVisible };
+            function getIsDeclarationVisible(declaration) {
+                if (!isDeclarationVisible(declaration)) {
+                    var anyImportSyntax = getAnyImportSyntax(declaration);
+                    if (anyImportSyntax &&
+                        !ts.hasModifier(anyImportSyntax, 1) &&
+                        isDeclarationVisible(anyImportSyntax.parent)) {
+                        return addVisibleAlias(declaration, anyImportSyntax);
+                    }
+                    else if (ts.isVariableDeclaration(declaration) && ts.isVariableStatement(declaration.parent.parent) &&
+                        !ts.hasModifier(declaration.parent.parent, 1) &&
+                        isDeclarationVisible(declaration.parent.parent.parent)) {
+                        return addVisibleAlias(declaration, declaration.parent.parent);
+                    }
+                    else if (ts.isLateVisibilityPaintedStatement(declaration)
+                        && !ts.hasModifier(declaration, 1)
+                        && isDeclarationVisible(declaration.parent)) {
+                        return addVisibleAlias(declaration, declaration);
+                    }
+                    return false;
+                }
+                return true;
+            }
+            function addVisibleAlias(declaration, aliasingStatement) {
+                if (shouldComputeAliasToMakeVisible) {
+                    getNodeLinks(declaration).isVisible = true;
+                    aliasesToMakeVisible = ts.appendIfUnique(aliasesToMakeVisible, aliasingStatement);
+                }
+                return true;
+            }
+        }
+        function isEntityNameVisible(entityName, enclosingDeclaration) {
+            var meaning;
+            if (entityName.parent.kind === 172 ||
+                ts.isExpressionWithTypeArgumentsInClassExtendsClause(entityName.parent) ||
+                entityName.parent.kind === 154) {
+                meaning = 111551 | 1048576;
+            }
+            else if (entityName.kind === 153 || entityName.kind === 194 ||
+                entityName.parent.kind === 253) {
+                meaning = 1920;
+            }
+            else {
+                meaning = 788968;
+            }
+            var firstIdentifier = ts.getFirstIdentifier(entityName);
+            var symbol = resolveName(enclosingDeclaration, firstIdentifier.escapedText, meaning, undefined, undefined, false);
+            return (symbol && hasVisibleDeclarations(symbol, true)) || {
+                accessibility: 1,
+                errorSymbolName: ts.getTextOfNode(firstIdentifier),
+                errorNode: firstIdentifier
+            };
+        }
+        function symbolToString(symbol, enclosingDeclaration, meaning, flags, writer) {
+            if (flags === void 0) { flags = 4; }
+            var nodeFlags = 70221824;
+            if (flags & 2) {
+                nodeFlags |= 128;
+            }
+            if (flags & 1) {
+                nodeFlags |= 512;
+            }
+            if (flags & 8) {
+                nodeFlags |= 16384;
+            }
+            if (flags & 16) {
+                nodeFlags |= 134217728;
+            }
+            var builder = flags & 4 ? nodeBuilder.symbolToExpression : nodeBuilder.symbolToEntityName;
+            return writer ? symbolToStringWorker(writer).getText() : ts.usingSingleLineStringWriter(symbolToStringWorker);
+            function symbolToStringWorker(writer) {
+                var entity = builder(symbol, meaning, enclosingDeclaration, nodeFlags);
+                var printer = ts.createPrinter({ removeComments: true });
+                var sourceFile = enclosingDeclaration && ts.getSourceFileOfNode(enclosingDeclaration);
+                printer.writeNode(4, entity, sourceFile, writer);
+                return writer;
+            }
+        }
+        function signatureToString(signature, enclosingDeclaration, flags, kind, writer) {
+            if (flags === void 0) { flags = 0; }
+            return writer ? signatureToStringWorker(writer).getText() : ts.usingSingleLineStringWriter(signatureToStringWorker);
+            function signatureToStringWorker(writer) {
+                var sigOutput;
+                if (flags & 262144) {
+                    sigOutput = kind === 1 ? 171 : 170;
+                }
+                else {
+                    sigOutput = kind === 1 ? 166 : 165;
+                }
+                var sig = nodeBuilder.signatureToSignatureDeclaration(signature, sigOutput, enclosingDeclaration, toNodeBuilderFlags(flags) | 70221824 | 512);
+                var printer = ts.createPrinter({ removeComments: true, omitTrailingSemicolon: true });
+                var sourceFile = enclosingDeclaration && ts.getSourceFileOfNode(enclosingDeclaration);
+                printer.writeNode(4, sig, sourceFile, ts.getTrailingSemicolonDeferringWriter(writer));
+                return writer;
+            }
+        }
+        function typeToString(type, enclosingDeclaration, flags, writer) {
+            if (flags === void 0) { flags = 1048576 | 16384; }
+            if (writer === void 0) { writer = ts.createTextWriter(""); }
+            var noTruncation = compilerOptions.noErrorTruncation || flags & 1;
+            var typeNode = nodeBuilder.typeToTypeNode(type, enclosingDeclaration, toNodeBuilderFlags(flags) | 70221824 | (noTruncation ? 1 : 0), writer);
+            if (typeNode === undefined)
+                return ts.Debug.fail("should always get typenode");
+            var options = { removeComments: true };
+            var printer = ts.createPrinter(options);
+            var sourceFile = enclosingDeclaration && ts.getSourceFileOfNode(enclosingDeclaration);
+            printer.writeNode(4, typeNode, sourceFile, writer);
+            var result = writer.getText();
+            var maxLength = noTruncation ? ts.noTruncationMaximumTruncationLength * 2 : ts.defaultMaximumTruncationLength * 2;
+            if (maxLength && result && result.length >= maxLength) {
+                return result.substr(0, maxLength - "...".length) + "...";
+            }
+            return result;
+        }
+        function getTypeNamesForErrorDisplay(left, right) {
+            var leftStr = symbolValueDeclarationIsContextSensitive(left.symbol) ? typeToString(left, left.symbol.valueDeclaration) : typeToString(left);
+            var rightStr = symbolValueDeclarationIsContextSensitive(right.symbol) ? typeToString(right, right.symbol.valueDeclaration) : typeToString(right);
+            if (leftStr === rightStr) {
+                leftStr = typeToString(left, undefined, 64);
+                rightStr = typeToString(right, undefined, 64);
+            }
+            return [leftStr, rightStr];
+        }
+        function symbolValueDeclarationIsContextSensitive(symbol) {
+            return symbol && symbol.valueDeclaration && ts.isExpression(symbol.valueDeclaration) && !isContextSensitive(symbol.valueDeclaration);
+        }
+        function toNodeBuilderFlags(flags) {
+            if (flags === void 0) { flags = 0; }
+            return flags & 814775659;
+        }
+        function createNodeBuilder() {
+            return {
+                typeToTypeNode: function (type, enclosingDeclaration, flags, tracker) {
+                    return withContext(enclosingDeclaration, flags, tracker, function (context) { return typeToTypeNodeHelper(type, context); });
+                },
+                indexInfoToIndexSignatureDeclaration: function (indexInfo, kind, enclosingDeclaration, flags, tracker) {
+                    return withContext(enclosingDeclaration, flags, tracker, function (context) { return indexInfoToIndexSignatureDeclarationHelper(indexInfo, kind, context); });
+                },
+                signatureToSignatureDeclaration: function (signature, kind, enclosingDeclaration, flags, tracker) {
+                    return withContext(enclosingDeclaration, flags, tracker, function (context) { return signatureToSignatureDeclarationHelper(signature, kind, context); });
+                },
+                symbolToEntityName: function (symbol, meaning, enclosingDeclaration, flags, tracker) {
+                    return withContext(enclosingDeclaration, flags, tracker, function (context) { return symbolToName(symbol, context, meaning, false); });
+                },
+                symbolToExpression: function (symbol, meaning, enclosingDeclaration, flags, tracker) {
+                    return withContext(enclosingDeclaration, flags, tracker, function (context) { return symbolToExpression(symbol, context, meaning); });
+                },
+                symbolToTypeParameterDeclarations: function (symbol, enclosingDeclaration, flags, tracker) {
+                    return withContext(enclosingDeclaration, flags, tracker, function (context) { return typeParametersToTypeParameterDeclarations(symbol, context); });
+                },
+                symbolToParameterDeclaration: function (symbol, enclosingDeclaration, flags, tracker) {
+                    return withContext(enclosingDeclaration, flags, tracker, function (context) { return symbolToParameterDeclaration(symbol, context); });
+                },
+                typeParameterToDeclaration: function (parameter, enclosingDeclaration, flags, tracker) {
+                    return withContext(enclosingDeclaration, flags, tracker, function (context) { return typeParameterToDeclaration(parameter, context); });
+                },
+                symbolTableToDeclarationStatements: function (symbolTable, enclosingDeclaration, flags, tracker, bundled) {
+                    return withContext(enclosingDeclaration, flags, tracker, function (context) { return symbolTableToDeclarationStatements(symbolTable, context, bundled); });
+                },
+            };
+            function withContext(enclosingDeclaration, flags, tracker, cb) {
+                ts.Debug.assert(enclosingDeclaration === undefined || (enclosingDeclaration.flags & 8) === 0);
+                var context = {
+                    enclosingDeclaration: enclosingDeclaration,
+                    flags: flags || 0,
+                    tracker: tracker && tracker.trackSymbol ? tracker : { trackSymbol: ts.noop, moduleResolverHost: flags & 134217728 ? {
+                            getCommonSourceDirectory: !!host.getCommonSourceDirectory ? function () { return host.getCommonSourceDirectory(); } : function () { return ""; },
+                            getSourceFiles: function () { return host.getSourceFiles(); },
+                            getCurrentDirectory: function () { return host.getCurrentDirectory(); },
+                            getProbableSymlinks: ts.maybeBind(host, host.getProbableSymlinks),
+                            useCaseSensitiveFileNames: ts.maybeBind(host, host.useCaseSensitiveFileNames),
+                            redirectTargetsMap: host.redirectTargetsMap,
+                            getProjectReferenceRedirect: function (fileName) { return host.getProjectReferenceRedirect(fileName); },
+                            isSourceOfProjectReferenceRedirect: function (fileName) { return host.isSourceOfProjectReferenceRedirect(fileName); },
+                            fileExists: function (fileName) { return host.fileExists(fileName); },
+                        } : undefined },
+                    encounteredError: false,
+                    visitedTypes: undefined,
+                    symbolDepth: undefined,
+                    inferTypeParameters: undefined,
+                    approximateLength: 0
+                };
+                var resultingNode = cb(context);
+                return context.encounteredError ? undefined : resultingNode;
+            }
+            function checkTruncationLength(context) {
+                if (context.truncating)
+                    return context.truncating;
+                return context.truncating = context.approximateLength > ((context.flags & 1) ? ts.noTruncationMaximumTruncationLength : ts.defaultMaximumTruncationLength);
+            }
+            function typeToTypeNodeHelper(type, context) {
+                if (cancellationToken && cancellationToken.throwIfCancellationRequested) {
+                    cancellationToken.throwIfCancellationRequested();
+                }
+                var inTypeAlias = context.flags & 8388608;
+                context.flags &= ~8388608;
+                if (!type) {
+                    if (!(context.flags & 262144)) {
+                        context.encounteredError = true;
+                        return undefined;
+                    }
+                    context.approximateLength += 3;
+                    return ts.createKeywordTypeNode(125);
+                }
+                if (!(context.flags & 536870912)) {
+                    type = getReducedType(type);
+                }
+                if (type.flags & 1) {
+                    context.approximateLength += 3;
+                    return ts.createKeywordTypeNode(125);
+                }
+                if (type.flags & 2) {
+                    return ts.createKeywordTypeNode(148);
+                }
+                if (type.flags & 4) {
+                    context.approximateLength += 6;
+                    return ts.createKeywordTypeNode(143);
+                }
+                if (type.flags & 8) {
+                    context.approximateLength += 6;
+                    return ts.createKeywordTypeNode(140);
+                }
+                if (type.flags & 64) {
+                    context.approximateLength += 6;
+                    return ts.createKeywordTypeNode(151);
+                }
+                if (type.flags & 16) {
+                    context.approximateLength += 7;
+                    return ts.createKeywordTypeNode(128);
+                }
+                if (type.flags & 1024 && !(type.flags & 1048576)) {
+                    var parentSymbol = getParentOfSymbol(type.symbol);
+                    var parentName = symbolToTypeNode(parentSymbol, context, 788968);
+                    var enumLiteralName = getDeclaredTypeOfSymbol(parentSymbol) === type
+                        ? parentName
+                        : appendReferenceToType(parentName, ts.createTypeReferenceNode(ts.symbolName(type.symbol), undefined));
+                    return enumLiteralName;
+                }
+                if (type.flags & 1056) {
+                    return symbolToTypeNode(type.symbol, context, 788968);
+                }
+                if (type.flags & 128) {
+                    context.approximateLength += (type.value.length + 2);
+                    return ts.createLiteralTypeNode(ts.setEmitFlags(ts.createLiteral(type.value, !!(context.flags & 268435456)), 16777216));
+                }
+                if (type.flags & 256) {
+                    var value = type.value;
+                    context.approximateLength += ("" + value).length;
+                    return ts.createLiteralTypeNode(value < 0 ? ts.createPrefix(40, ts.createLiteral(-value)) : ts.createLiteral(value));
+                }
+                if (type.flags & 2048) {
+                    context.approximateLength += (ts.pseudoBigIntToString(type.value).length) + 1;
+                    return ts.createLiteralTypeNode((ts.createLiteral(type.value)));
+                }
+                if (type.flags & 512) {
+                    context.approximateLength += type.intrinsicName.length;
+                    return type.intrinsicName === "true" ? ts.createTrue() : ts.createFalse();
+                }
+                if (type.flags & 8192) {
+                    if (!(context.flags & 1048576)) {
+                        if (isValueSymbolAccessible(type.symbol, context.enclosingDeclaration)) {
+                            context.approximateLength += 6;
+                            return symbolToTypeNode(type.symbol, context, 111551);
+                        }
+                        if (context.tracker.reportInaccessibleUniqueSymbolError) {
+                            context.tracker.reportInaccessibleUniqueSymbolError();
+                        }
+                    }
+                    context.approximateLength += 13;
+                    return ts.createTypeOperatorNode(147, ts.createKeywordTypeNode(144));
+                }
+                if (type.flags & 16384) {
+                    context.approximateLength += 4;
+                    return ts.createKeywordTypeNode(110);
+                }
+                if (type.flags & 32768) {
+                    context.approximateLength += 9;
+                    return ts.createKeywordTypeNode(146);
+                }
+                if (type.flags & 65536) {
+                    context.approximateLength += 4;
+                    return ts.createKeywordTypeNode(100);
+                }
+                if (type.flags & 131072) {
+                    context.approximateLength += 5;
+                    return ts.createKeywordTypeNode(137);
+                }
+                if (type.flags & 4096) {
+                    context.approximateLength += 6;
+                    return ts.createKeywordTypeNode(144);
+                }
+                if (type.flags & 67108864) {
+                    context.approximateLength += 6;
+                    return ts.createKeywordTypeNode(141);
+                }
+                if (isThisTypeParameter(type)) {
+                    if (context.flags & 4194304) {
+                        if (!context.encounteredError && !(context.flags & 32768)) {
+                            context.encounteredError = true;
+                        }
+                        if (context.tracker.reportInaccessibleThisError) {
+                            context.tracker.reportInaccessibleThisError();
+                        }
+                    }
+                    context.approximateLength += 4;
+                    return ts.createThis();
+                }
+                if (!inTypeAlias && type.aliasSymbol && (context.flags & 16384 || isTypeSymbolAccessible(type.aliasSymbol, context.enclosingDeclaration))) {
+                    var typeArgumentNodes = mapToTypeNodes(type.aliasTypeArguments, context);
+                    if (isReservedMemberName(type.aliasSymbol.escapedName) && !(type.aliasSymbol.flags & 32))
+                        return ts.createTypeReferenceNode(ts.createIdentifier(""), typeArgumentNodes);
+                    return symbolToTypeNode(type.aliasSymbol, context, 788968, typeArgumentNodes);
+                }
+                var objectFlags = ts.getObjectFlags(type);
+                if (objectFlags & 4) {
+                    ts.Debug.assert(!!(type.flags & 524288));
+                    return type.node ? visitAndTransformType(type, typeReferenceToTypeNode) : typeReferenceToTypeNode(type);
+                }
+                if (type.flags & 262144 || objectFlags & 3) {
+                    if (type.flags & 262144 && ts.contains(context.inferTypeParameters, type)) {
+                        context.approximateLength += (ts.symbolName(type.symbol).length + 6);
+                        return ts.createInferTypeNode(typeParameterToDeclarationWithConstraint(type, context, undefined));
+                    }
+                    if (context.flags & 4 &&
+                        type.flags & 262144 &&
+                        !isTypeSymbolAccessible(type.symbol, context.enclosingDeclaration)) {
+                        var name = typeParameterToName(type, context);
+                        context.approximateLength += ts.idText(name).length;
+                        return ts.createTypeReferenceNode(ts.createIdentifier(ts.idText(name)), undefined);
+                    }
+                    return type.symbol
+                        ? symbolToTypeNode(type.symbol, context, 788968)
+                        : ts.createTypeReferenceNode(ts.createIdentifier("?"), undefined);
+                }
+                if (type.flags & (1048576 | 2097152)) {
+                    var types = type.flags & 1048576 ? formatUnionTypes(type.types) : type.types;
+                    if (ts.length(types) === 1) {
+                        return typeToTypeNodeHelper(types[0], context);
+                    }
+                    var typeNodes = mapToTypeNodes(types, context, true);
+                    if (typeNodes && typeNodes.length > 0) {
+                        var unionOrIntersectionTypeNode = ts.createUnionOrIntersectionTypeNode(type.flags & 1048576 ? 178 : 179, typeNodes);
+                        return unionOrIntersectionTypeNode;
+                    }
+                    else {
+                        if (!context.encounteredError && !(context.flags & 262144)) {
+                            context.encounteredError = true;
+                        }
+                        return undefined;
+                    }
+                }
+                if (objectFlags & (16 | 32)) {
+                    ts.Debug.assert(!!(type.flags & 524288));
+                    return createAnonymousTypeNode(type);
+                }
+                if (type.flags & 4194304) {
+                    var indexedType = type.type;
+                    context.approximateLength += 6;
+                    var indexTypeNode = typeToTypeNodeHelper(indexedType, context);
+                    return ts.createTypeOperatorNode(indexTypeNode);
+                }
+                if (type.flags & 8388608) {
+                    var objectTypeNode = typeToTypeNodeHelper(type.objectType, context);
+                    var indexTypeNode = typeToTypeNodeHelper(type.indexType, context);
+                    context.approximateLength += 2;
+                    return ts.createIndexedAccessTypeNode(objectTypeNode, indexTypeNode);
+                }
+                if (type.flags & 16777216) {
+                    var checkTypeNode = typeToTypeNodeHelper(type.checkType, context);
+                    var saveInferTypeParameters = context.inferTypeParameters;
+                    context.inferTypeParameters = type.root.inferTypeParameters;
+                    var extendsTypeNode = typeToTypeNodeHelper(type.extendsType, context);
+                    context.inferTypeParameters = saveInferTypeParameters;
+                    var trueTypeNode = typeToTypeNodeHelper(getTrueTypeFromConditionalType(type), context);
+                    var falseTypeNode = typeToTypeNodeHelper(getFalseTypeFromConditionalType(type), context);
+                    context.approximateLength += 15;
+                    return ts.createConditionalTypeNode(checkTypeNode, extendsTypeNode, trueTypeNode, falseTypeNode);
+                }
+                if (type.flags & 33554432) {
+                    return typeToTypeNodeHelper(type.baseType, context);
+                }
+                return ts.Debug.fail("Should be unreachable.");
+                function createMappedTypeNodeFromType(type) {
+                    ts.Debug.assert(!!(type.flags & 524288));
+                    var readonlyToken = type.declaration.readonlyToken ? ts.createToken(type.declaration.readonlyToken.kind) : undefined;
+                    var questionToken = type.declaration.questionToken ? ts.createToken(type.declaration.questionToken.kind) : undefined;
+                    var appropriateConstraintTypeNode;
+                    if (isMappedTypeWithKeyofConstraintDeclaration(type)) {
+                        appropriateConstraintTypeNode = ts.createTypeOperatorNode(typeToTypeNodeHelper(getModifiersTypeFromMappedType(type), context));
+                    }
+                    else {
+                        appropriateConstraintTypeNode = typeToTypeNodeHelper(getConstraintTypeFromMappedType(type), context);
+                    }
+                    var typeParameterNode = typeParameterToDeclarationWithConstraint(getTypeParameterFromMappedType(type), context, appropriateConstraintTypeNode);
+                    var templateTypeNode = typeToTypeNodeHelper(getTemplateTypeFromMappedType(type), context);
+                    var mappedTypeNode = ts.createMappedTypeNode(readonlyToken, typeParameterNode, questionToken, templateTypeNode);
+                    context.approximateLength += 10;
+                    return ts.setEmitFlags(mappedTypeNode, 1);
+                }
+                function createAnonymousTypeNode(type) {
+                    var typeId = "" + type.id;
+                    var symbol = type.symbol;
+                    if (symbol) {
+                        if (isJSConstructor(symbol.valueDeclaration)) {
+                            var isInstanceType = type === getDeclaredTypeOfClassOrInterface(symbol) ? 788968 : 111551;
+                            return symbolToTypeNode(symbol, context, isInstanceType);
+                        }
+                        else if (symbol.flags & 32 && !getBaseTypeVariableOfClass(symbol) && !(symbol.valueDeclaration.kind === 214 && context.flags & 2048) ||
+                            symbol.flags & (384 | 512) ||
+                            shouldWriteTypeOfFunctionSymbol()) {
+                            return symbolToTypeNode(symbol, context, 111551);
+                        }
+                        else if (context.visitedTypes && context.visitedTypes.has(typeId)) {
+                            var typeAlias = getTypeAliasForTypeLiteral(type);
+                            if (typeAlias) {
+                                return symbolToTypeNode(typeAlias, context, 788968);
+                            }
+                            else {
+                                return createElidedInformationPlaceholder(context);
+                            }
+                        }
+                        else {
+                            return visitAndTransformType(type, createTypeNodeFromObjectType);
+                        }
+                    }
+                    else {
+                        return createTypeNodeFromObjectType(type);
+                    }
+                    function shouldWriteTypeOfFunctionSymbol() {
+                        var isStaticMethodSymbol = !!(symbol.flags & 8192) &&
+                            ts.some(symbol.declarations, function (declaration) { return ts.hasModifier(declaration, 32); });
+                        var isNonLocalFunctionSymbol = !!(symbol.flags & 16) &&
+                            (symbol.parent ||
+                                ts.forEach(symbol.declarations, function (declaration) {
+                                    return declaration.parent.kind === 290 || declaration.parent.kind === 250;
+                                }));
+                        if (isStaticMethodSymbol || isNonLocalFunctionSymbol) {
+                            return (!!(context.flags & 4096) || (context.visitedTypes && context.visitedTypes.has(typeId))) &&
+                                (!(context.flags & 8) || isValueSymbolAccessible(symbol, context.enclosingDeclaration));
+                        }
+                    }
+                }
+                function visitAndTransformType(type, transform) {
+                    var typeId = "" + type.id;
+                    var isConstructorObject = ts.getObjectFlags(type) & 16 && type.symbol && type.symbol.flags & 32;
+                    var id = ts.getObjectFlags(type) & 4 && type.node ? "N" + getNodeId(type.node) :
+                        type.symbol ? (isConstructorObject ? "+" : "") + getSymbolId(type.symbol) :
+                            undefined;
+                    if (!context.visitedTypes) {
+                        context.visitedTypes = ts.createMap();
+                    }
+                    if (id && !context.symbolDepth) {
+                        context.symbolDepth = ts.createMap();
+                    }
+                    var depth;
+                    if (id) {
+                        depth = context.symbolDepth.get(id) || 0;
+                        if (depth > 10) {
+                            return createElidedInformationPlaceholder(context);
+                        }
+                        context.symbolDepth.set(id, depth + 1);
+                    }
+                    context.visitedTypes.set(typeId, true);
+                    var result = transform(type);
+                    context.visitedTypes.delete(typeId);
+                    if (id) {
+                        context.symbolDepth.set(id, depth);
+                    }
+                    return result;
+                }
+                function createTypeNodeFromObjectType(type) {
+                    if (isGenericMappedType(type)) {
+                        return createMappedTypeNodeFromType(type);
+                    }
+                    var resolved = resolveStructuredTypeMembers(type);
+                    if (!resolved.properties.length && !resolved.stringIndexInfo && !resolved.numberIndexInfo) {
+                        if (!resolved.callSignatures.length && !resolved.constructSignatures.length) {
+                            context.approximateLength += 2;
+                            return ts.setEmitFlags(ts.createTypeLiteralNode(undefined), 1);
+                        }
+                        if (resolved.callSignatures.length === 1 && !resolved.constructSignatures.length) {
+                            var signature = resolved.callSignatures[0];
+                            var signatureNode = signatureToSignatureDeclarationHelper(signature, 170, context);
+                            return signatureNode;
+                        }
+                        if (resolved.constructSignatures.length === 1 && !resolved.callSignatures.length) {
+                            var signature = resolved.constructSignatures[0];
+                            var signatureNode = signatureToSignatureDeclarationHelper(signature, 171, context);
+                            return signatureNode;
+                        }
+                    }
+                    var savedFlags = context.flags;
+                    context.flags |= 4194304;
+                    var members = createTypeNodesFromResolvedType(resolved);
+                    context.flags = savedFlags;
+                    var typeLiteralNode = ts.createTypeLiteralNode(members);
+                    context.approximateLength += 2;
+                    return ts.setEmitFlags(typeLiteralNode, (context.flags & 1024) ? 0 : 1);
+                }
+                function typeReferenceToTypeNode(type) {
+                    var typeArguments = getTypeArguments(type);
+                    if (type.target === globalArrayType || type.target === globalReadonlyArrayType) {
+                        if (context.flags & 2) {
+                            var typeArgumentNode = typeToTypeNodeHelper(typeArguments[0], context);
+                            return ts.createTypeReferenceNode(type.target === globalArrayType ? "Array" : "ReadonlyArray", [typeArgumentNode]);
+                        }
+                        var elementType = typeToTypeNodeHelper(typeArguments[0], context);
+                        var arrayType = ts.createArrayTypeNode(elementType);
+                        return type.target === globalArrayType ? arrayType : ts.createTypeOperatorNode(138, arrayType);
+                    }
+                    else if (type.target.objectFlags & 8) {
+                        if (typeArguments.length > 0) {
+                            var arity = getTypeReferenceArity(type);
+                            var tupleConstituentNodes = mapToTypeNodes(typeArguments.slice(0, arity), context);
+                            var hasRestElement = type.target.hasRestElement;
+                            if (tupleConstituentNodes) {
+                                for (var i = type.target.minLength; i < Math.min(arity, tupleConstituentNodes.length); i++) {
+                                    tupleConstituentNodes[i] = hasRestElement && i === arity - 1 ?
+                                        ts.createRestTypeNode(ts.createArrayTypeNode(tupleConstituentNodes[i])) :
+                                        ts.createOptionalTypeNode(tupleConstituentNodes[i]);
+                                }
+                                var tupleTypeNode = ts.createTupleTypeNode(tupleConstituentNodes);
+                                return type.target.readonly ? ts.createTypeOperatorNode(138, tupleTypeNode) : tupleTypeNode;
+                            }
+                        }
+                        if (context.encounteredError || (context.flags & 524288)) {
+                            var tupleTypeNode = ts.createTupleTypeNode([]);
+                            return type.target.readonly ? ts.createTypeOperatorNode(138, tupleTypeNode) : tupleTypeNode;
+                        }
+                        context.encounteredError = true;
+                        return undefined;
+                    }
+                    else if (context.flags & 2048 &&
+                        type.symbol.valueDeclaration &&
+                        ts.isClassLike(type.symbol.valueDeclaration) &&
+                        !isValueSymbolAccessible(type.symbol, context.enclosingDeclaration)) {
+                        return createAnonymousTypeNode(type);
+                    }
+                    else {
+                        var outerTypeParameters = type.target.outerTypeParameters;
+                        var i = 0;
+                        var resultType = void 0;
+                        if (outerTypeParameters) {
+                            var length_2 = outerTypeParameters.length;
+                            while (i < length_2) {
+                                var start = i;
+                                var parent = getParentSymbolOfTypeParameter(outerTypeParameters[i]);
+                                do {
+                                    i++;
+                                } while (i < length_2 && getParentSymbolOfTypeParameter(outerTypeParameters[i]) === parent);
+                                if (!ts.rangeEquals(outerTypeParameters, typeArguments, start, i)) {
+                                    var typeArgumentSlice = mapToTypeNodes(typeArguments.slice(start, i), context);
+                                    var flags_2 = context.flags;
+                                    context.flags |= 16;
+                                    var ref = symbolToTypeNode(parent, context, 788968, typeArgumentSlice);
+                                    context.flags = flags_2;
+                                    resultType = !resultType ? ref : appendReferenceToType(resultType, ref);
+                                }
+                            }
+                        }
+                        var typeArgumentNodes = void 0;
+                        if (typeArguments.length > 0) {
+                            var typeParameterCount = (type.target.typeParameters || ts.emptyArray).length;
+                            typeArgumentNodes = mapToTypeNodes(typeArguments.slice(i, typeParameterCount), context);
+                        }
+                        var flags = context.flags;
+                        context.flags |= 16;
+                        var finalRef = symbolToTypeNode(type.symbol, context, 788968, typeArgumentNodes);
+                        context.flags = flags;
+                        return !resultType ? finalRef : appendReferenceToType(resultType, finalRef);
+                    }
+                }
+                function appendReferenceToType(root, ref) {
+                    if (ts.isImportTypeNode(root)) {
+                        var innerParams = root.typeArguments;
+                        if (root.qualifier) {
+                            (ts.isIdentifier(root.qualifier) ? root.qualifier : root.qualifier.right).typeArguments = innerParams;
+                        }
+                        root.typeArguments = ref.typeArguments;
+                        var ids = getAccessStack(ref);
+                        for (var _i = 0, ids_1 = ids; _i < ids_1.length; _i++) {
+                            var id = ids_1[_i];
+                            root.qualifier = root.qualifier ? ts.createQualifiedName(root.qualifier, id) : id;
+                        }
+                        return root;
+                    }
+                    else {
+                        var innerParams = root.typeArguments;
+                        (ts.isIdentifier(root.typeName) ? root.typeName : root.typeName.right).typeArguments = innerParams;
+                        root.typeArguments = ref.typeArguments;
+                        var ids = getAccessStack(ref);
+                        for (var _a = 0, ids_2 = ids; _a < ids_2.length; _a++) {
+                            var id = ids_2[_a];
+                            root.typeName = ts.createQualifiedName(root.typeName, id);
+                        }
+                        return root;
+                    }
+                }
+                function getAccessStack(ref) {
+                    var state = ref.typeName;
+                    var ids = [];
+                    while (!ts.isIdentifier(state)) {
+                        ids.unshift(state.right);
+                        state = state.left;
+                    }
+                    ids.unshift(state);
+                    return ids;
+                }
+                function createTypeNodesFromResolvedType(resolvedType) {
+                    if (checkTruncationLength(context)) {
+                        return [ts.createPropertySignature(undefined, "...", undefined, undefined, undefined)];
+                    }
+                    var typeElements = [];
+                    for (var _i = 0, _a = resolvedType.callSignatures; _i < _a.length; _i++) {
+                        var signature = _a[_i];
+                        typeElements.push(signatureToSignatureDeclarationHelper(signature, 165, context));
+                    }
+                    for (var _b = 0, _c = resolvedType.constructSignatures; _b < _c.length; _b++) {
+                        var signature = _c[_b];
+                        typeElements.push(signatureToSignatureDeclarationHelper(signature, 166, context));
+                    }
+                    if (resolvedType.stringIndexInfo) {
+                        var indexSignature = void 0;
+                        if (resolvedType.objectFlags & 2048) {
+                            indexSignature = indexInfoToIndexSignatureDeclarationHelper(createIndexInfo(anyType, resolvedType.stringIndexInfo.isReadonly, resolvedType.stringIndexInfo.declaration), 0, context);
+                            indexSignature.type = createElidedInformationPlaceholder(context);
+                        }
+                        else {
+                            indexSignature = indexInfoToIndexSignatureDeclarationHelper(resolvedType.stringIndexInfo, 0, context);
+                        }
+                        typeElements.push(indexSignature);
+                    }
+                    if (resolvedType.numberIndexInfo) {
+                        typeElements.push(indexInfoToIndexSignatureDeclarationHelper(resolvedType.numberIndexInfo, 1, context));
+                    }
+                    var properties = resolvedType.properties;
+                    if (!properties) {
+                        return typeElements;
+                    }
+                    var i = 0;
+                    for (var _d = 0, properties_1 = properties; _d < properties_1.length; _d++) {
+                        var propertySymbol = properties_1[_d];
+                        i++;
+                        if (context.flags & 2048) {
+                            if (propertySymbol.flags & 4194304) {
+                                continue;
+                            }
+                            if (ts.getDeclarationModifierFlagsFromSymbol(propertySymbol) & (8 | 16) && context.tracker.reportPrivateInBaseOfClassExpression) {
+                                context.tracker.reportPrivateInBaseOfClassExpression(ts.unescapeLeadingUnderscores(propertySymbol.escapedName));
+                            }
+                        }
+                        if (checkTruncationLength(context) && (i + 2 < properties.length - 1)) {
+                            typeElements.push(ts.createPropertySignature(undefined, "... " + (properties.length - i) + " more ...", undefined, undefined, undefined));
+                            addPropertyToElementList(properties[properties.length - 1], context, typeElements);
+                            break;
+                        }
+                        addPropertyToElementList(propertySymbol, context, typeElements);
+                    }
+                    return typeElements.length ? typeElements : undefined;
+                }
+            }
+            function createElidedInformationPlaceholder(context) {
+                context.approximateLength += 3;
+                if (!(context.flags & 1)) {
+                    return ts.createTypeReferenceNode(ts.createIdentifier("..."), undefined);
+                }
+                return ts.createKeywordTypeNode(125);
+            }
+            function addPropertyToElementList(propertySymbol, context, typeElements) {
+                var propertyIsReverseMapped = !!(ts.getCheckFlags(propertySymbol) & 8192);
+                var propertyType = propertyIsReverseMapped && context.flags & 33554432 ?
+                    anyType : getTypeOfSymbol(propertySymbol);
+                var saveEnclosingDeclaration = context.enclosingDeclaration;
+                context.enclosingDeclaration = undefined;
+                if (context.tracker.trackSymbol && ts.getCheckFlags(propertySymbol) & 4096) {
+                    var decl = ts.first(propertySymbol.declarations);
+                    if (hasLateBindableName(decl)) {
+                        if (ts.isBinaryExpression(decl)) {
+                            var name = ts.getNameOfDeclaration(decl);
+                            if (name && ts.isElementAccessExpression(name) && ts.isPropertyAccessEntityNameExpression(name.argumentExpression)) {
+                                trackComputedName(name.argumentExpression, saveEnclosingDeclaration, context);
+                            }
+                        }
+                        else {
+                            trackComputedName(decl.name.expression, saveEnclosingDeclaration, context);
+                        }
+                    }
+                }
+                context.enclosingDeclaration = saveEnclosingDeclaration;
+                var propertyName = getPropertyNameNodeForSymbol(propertySymbol, context);
+                context.approximateLength += (ts.symbolName(propertySymbol).length + 1);
+                var optionalToken = propertySymbol.flags & 16777216 ? ts.createToken(57) : undefined;
+                if (propertySymbol.flags & (16 | 8192) && !getPropertiesOfObjectType(propertyType).length && !isReadonlySymbol(propertySymbol)) {
+                    var signatures = getSignaturesOfType(filterType(propertyType, function (t) { return !(t.flags & 32768); }), 0);
+                    for (var _i = 0, signatures_1 = signatures; _i < signatures_1.length; _i++) {
+                        var signature = signatures_1[_i];
+                        var methodDeclaration = signatureToSignatureDeclarationHelper(signature, 160, context);
+                        methodDeclaration.name = propertyName;
+                        methodDeclaration.questionToken = optionalToken;
+                        typeElements.push(preserveCommentsOn(methodDeclaration));
+                    }
+                }
+                else {
+                    var savedFlags = context.flags;
+                    context.flags |= propertyIsReverseMapped ? 33554432 : 0;
+                    var propertyTypeNode = void 0;
+                    if (propertyIsReverseMapped && !!(savedFlags & 33554432)) {
+                        propertyTypeNode = createElidedInformationPlaceholder(context);
+                    }
+                    else {
+                        propertyTypeNode = propertyType ? serializeTypeForDeclaration(context, propertyType, propertySymbol, saveEnclosingDeclaration) : ts.createKeywordTypeNode(125);
+                    }
+                    context.flags = savedFlags;
+                    var modifiers = isReadonlySymbol(propertySymbol) ? [ts.createToken(138)] : undefined;
+                    if (modifiers) {
+                        context.approximateLength += 9;
+                    }
+                    var propertySignature = ts.createPropertySignature(modifiers, propertyName, optionalToken, propertyTypeNode, undefined);
+                    typeElements.push(preserveCommentsOn(propertySignature));
+                }
+                function preserveCommentsOn(node) {
+                    if (ts.some(propertySymbol.declarations, function (d) { return d.kind === 323; })) {
+                        var d = ts.find(propertySymbol.declarations, function (d) { return d.kind === 323; });
+                        var commentText = d.comment;
+                        if (commentText) {
+                            ts.setSyntheticLeadingComments(node, [{ kind: 3, text: "*\n * " + commentText.replace(/\n/g, "\n * ") + "\n ", pos: -1, end: -1, hasTrailingNewLine: true }]);
+                        }
+                    }
+                    else if (propertySymbol.valueDeclaration) {
+                        ts.setCommentRange(node, propertySymbol.valueDeclaration);
+                    }
+                    return node;
+                }
+            }
+            function mapToTypeNodes(types, context, isBareList) {
+                if (ts.some(types)) {
+                    if (checkTruncationLength(context)) {
+                        if (!isBareList) {
+                            return [ts.createTypeReferenceNode("...", undefined)];
+                        }
+                        else if (types.length > 2) {
+                            return [
+                                typeToTypeNodeHelper(types[0], context),
+                                ts.createTypeReferenceNode("... " + (types.length - 2) + " more ...", undefined),
+                                typeToTypeNodeHelper(types[types.length - 1], context)
+                            ];
+                        }
+                    }
+                    var mayHaveNameCollisions = !(context.flags & 64);
+                    var seenNames = mayHaveNameCollisions ? ts.createUnderscoreEscapedMultiMap() : undefined;
+                    var result_3 = [];
+                    var i = 0;
+                    for (var _i = 0, types_1 = types; _i < types_1.length; _i++) {
+                        var type = types_1[_i];
+                        i++;
+                        if (checkTruncationLength(context) && (i + 2 < types.length - 1)) {
+                            result_3.push(ts.createTypeReferenceNode("... " + (types.length - i) + " more ...", undefined));
+                            var typeNode_1 = typeToTypeNodeHelper(types[types.length - 1], context);
+                            if (typeNode_1) {
+                                result_3.push(typeNode_1);
+                            }
+                            break;
+                        }
+                        context.approximateLength += 2;
+                        var typeNode = typeToTypeNodeHelper(type, context);
+                        if (typeNode) {
+                            result_3.push(typeNode);
+                            if (seenNames && ts.isIdentifierTypeReference(typeNode)) {
+                                seenNames.add(typeNode.typeName.escapedText, [type, result_3.length - 1]);
+                            }
+                        }
+                    }
+                    if (seenNames) {
+                        var saveContextFlags = context.flags;
+                        context.flags |= 64;
+                        seenNames.forEach(function (types) {
+                            if (!ts.arrayIsHomogeneous(types, function (_a, _b) {
+                                var a = _a[0];
+                                var b = _b[0];
+                                return typesAreSameReference(a, b);
+                            })) {
+                                for (var _i = 0, types_2 = types; _i < types_2.length; _i++) {
+                                    var _a = types_2[_i], type = _a[0], resultIndex = _a[1];
+                                    result_3[resultIndex] = typeToTypeNodeHelper(type, context);
+                                }
+                            }
+                        });
+                        context.flags = saveContextFlags;
+                    }
+                    return result_3;
+                }
+            }
+            function typesAreSameReference(a, b) {
+                return a === b
+                    || !!a.symbol && a.symbol === b.symbol
+                    || !!a.aliasSymbol && a.aliasSymbol === b.aliasSymbol;
+            }
+            function indexInfoToIndexSignatureDeclarationHelper(indexInfo, kind, context) {
+                var name = ts.getNameFromIndexInfo(indexInfo) || "x";
+                var indexerTypeNode = ts.createKeywordTypeNode(kind === 0 ? 143 : 140);
+                var indexingParameter = ts.createParameter(undefined, undefined, undefined, name, undefined, indexerTypeNode, undefined);
+                var typeNode = typeToTypeNodeHelper(indexInfo.type || anyType, context);
+                if (!indexInfo.type && !(context.flags & 2097152)) {
+                    context.encounteredError = true;
+                }
+                context.approximateLength += (name.length + 4);
+                return ts.createIndexSignature(undefined, indexInfo.isReadonly ? [ts.createToken(138)] : undefined, [indexingParameter], typeNode);
+            }
+            function signatureToSignatureDeclarationHelper(signature, kind, context, privateSymbolVisitor, bundledImports) {
+                var suppressAny = context.flags & 256;
+                if (suppressAny)
+                    context.flags &= ~256;
+                var typeParameters;
+                var typeArguments;
+                if (context.flags & 32 && signature.target && signature.mapper && signature.target.typeParameters) {
+                    typeArguments = signature.target.typeParameters.map(function (parameter) { return typeToTypeNodeHelper(instantiateType(parameter, signature.mapper), context); });
+                }
+                else {
+                    typeParameters = signature.typeParameters && signature.typeParameters.map(function (parameter) { return typeParameterToDeclaration(parameter, context); });
+                }
+                var parameters = getExpandedParameters(signature).map(function (parameter) { return symbolToParameterDeclaration(parameter, context, kind === 162, privateSymbolVisitor, bundledImports); });
+                if (signature.thisParameter) {
+                    var thisParameter = symbolToParameterDeclaration(signature.thisParameter, context);
+                    parameters.unshift(thisParameter);
+                }
+                var returnTypeNode;
+                var typePredicate = getTypePredicateOfSignature(signature);
+                if (typePredicate) {
+                    var assertsModifier = typePredicate.kind === 2 || typePredicate.kind === 3 ?
+                        ts.createToken(124) :
+                        undefined;
+                    var parameterName = typePredicate.kind === 1 || typePredicate.kind === 3 ?
+                        ts.setEmitFlags(ts.createIdentifier(typePredicate.parameterName), 16777216) :
+                        ts.createThisTypeNode();
+                    var typeNode = typePredicate.type && typeToTypeNodeHelper(typePredicate.type, context);
+                    returnTypeNode = ts.createTypePredicateNodeWithModifier(assertsModifier, parameterName, typeNode);
+                }
+                else {
+                    var returnType = getReturnTypeOfSignature(signature);
+                    if (returnType && !(suppressAny && isTypeAny(returnType))) {
+                        returnTypeNode = serializeReturnTypeForSignature(context, returnType, signature, privateSymbolVisitor, bundledImports);
+                    }
+                    else if (!suppressAny) {
+                        returnTypeNode = ts.createKeywordTypeNode(125);
+                    }
+                }
+                context.approximateLength += 3;
+                return ts.createSignatureDeclaration(kind, typeParameters, parameters, returnTypeNode, typeArguments);
+            }
+            function typeParameterToDeclarationWithConstraint(type, context, constraintNode) {
+                var savedContextFlags = context.flags;
+                context.flags &= ~512;
+                var name = typeParameterToName(type, context);
+                var defaultParameter = getDefaultFromTypeParameter(type);
+                var defaultParameterNode = defaultParameter && typeToTypeNodeHelper(defaultParameter, context);
+                context.flags = savedContextFlags;
+                return ts.createTypeParameterDeclaration(name, constraintNode, defaultParameterNode);
+            }
+            function typeParameterToDeclaration(type, context, constraint) {
+                if (constraint === void 0) { constraint = getConstraintOfTypeParameter(type); }
+                var constraintNode = constraint && typeToTypeNodeHelper(constraint, context);
+                return typeParameterToDeclarationWithConstraint(type, context, constraintNode);
+            }
+            function symbolToParameterDeclaration(parameterSymbol, context, preserveModifierFlags, privateSymbolVisitor, bundledImports) {
+                var parameterDeclaration = ts.getDeclarationOfKind(parameterSymbol, 156);
+                if (!parameterDeclaration && !ts.isTransientSymbol(parameterSymbol)) {
+                    parameterDeclaration = ts.getDeclarationOfKind(parameterSymbol, 317);
+                }
+                var parameterType = getTypeOfSymbol(parameterSymbol);
+                if (parameterDeclaration && isRequiredInitializedParameter(parameterDeclaration)) {
+                    parameterType = getOptionalType(parameterType);
+                }
+                var parameterTypeNode = serializeTypeForDeclaration(context, parameterType, parameterSymbol, context.enclosingDeclaration, privateSymbolVisitor, bundledImports);
+                var modifiers = !(context.flags & 8192) && preserveModifierFlags && parameterDeclaration && parameterDeclaration.modifiers ? parameterDeclaration.modifiers.map(ts.getSynthesizedClone) : undefined;
+                var isRest = parameterDeclaration && ts.isRestParameter(parameterDeclaration) || ts.getCheckFlags(parameterSymbol) & 32768;
+                var dotDotDotToken = isRest ? ts.createToken(25) : undefined;
+                var name = parameterDeclaration ? parameterDeclaration.name ?
+                    parameterDeclaration.name.kind === 75 ? ts.setEmitFlags(ts.getSynthesizedClone(parameterDeclaration.name), 16777216) :
+                        parameterDeclaration.name.kind === 153 ? ts.setEmitFlags(ts.getSynthesizedClone(parameterDeclaration.name.right), 16777216) :
+                            cloneBindingName(parameterDeclaration.name) :
+                    ts.symbolName(parameterSymbol) :
+                    ts.symbolName(parameterSymbol);
+                var isOptional = parameterDeclaration && isOptionalParameter(parameterDeclaration) || ts.getCheckFlags(parameterSymbol) & 16384;
+                var questionToken = isOptional ? ts.createToken(57) : undefined;
+                var parameterNode = ts.createParameter(undefined, modifiers, dotDotDotToken, name, questionToken, parameterTypeNode, undefined);
+                context.approximateLength += ts.symbolName(parameterSymbol).length + 3;
+                return parameterNode;
+                function cloneBindingName(node) {
+                    return elideInitializerAndSetEmitFlags(node);
+                    function elideInitializerAndSetEmitFlags(node) {
+                        if (context.tracker.trackSymbol && ts.isComputedPropertyName(node) && isLateBindableName(node)) {
+                            trackComputedName(node.expression, context.enclosingDeclaration, context);
+                        }
+                        var visited = ts.visitEachChild(node, elideInitializerAndSetEmitFlags, ts.nullTransformationContext, undefined, elideInitializerAndSetEmitFlags);
+                        var clone = ts.nodeIsSynthesized(visited) ? visited : ts.getSynthesizedClone(visited);
+                        if (clone.kind === 191) {
+                            clone.initializer = undefined;
+                        }
+                        return ts.setEmitFlags(clone, 1 | 16777216);
+                    }
+                }
+            }
+            function trackComputedName(accessExpression, enclosingDeclaration, context) {
+                if (!context.tracker.trackSymbol)
+                    return;
+                var firstIdentifier = ts.getFirstIdentifier(accessExpression);
+                var name = resolveName(firstIdentifier, firstIdentifier.escapedText, 111551 | 1048576, undefined, undefined, true);
+                if (name) {
+                    context.tracker.trackSymbol(name, enclosingDeclaration, 111551);
+                }
+            }
+            function lookupSymbolChain(symbol, context, meaning, yieldModuleSymbol) {
+                context.tracker.trackSymbol(symbol, context.enclosingDeclaration, meaning);
+                return lookupSymbolChainWorker(symbol, context, meaning, yieldModuleSymbol);
+            }
+            function lookupSymbolChainWorker(symbol, context, meaning, yieldModuleSymbol) {
+                var chain;
+                var isTypeParameter = symbol.flags & 262144;
+                if (!isTypeParameter && (context.enclosingDeclaration || context.flags & 64) && !(context.flags & 134217728)) {
+                    chain = ts.Debug.checkDefined(getSymbolChain(symbol, meaning, true));
+                    ts.Debug.assert(chain && chain.length > 0);
+                }
+                else {
+                    chain = [symbol];
+                }
+                return chain;
+                function getSymbolChain(symbol, meaning, endOfChain) {
+                    var accessibleSymbolChain = getAccessibleSymbolChain(symbol, context.enclosingDeclaration, meaning, !!(context.flags & 128));
+                    var parentSpecifiers;
+                    if (!accessibleSymbolChain ||
+                        needsQualification(accessibleSymbolChain[0], context.enclosingDeclaration, accessibleSymbolChain.length === 1 ? meaning : getQualifiedLeftMeaning(meaning))) {
+                        var parents_1 = getContainersOfSymbol(accessibleSymbolChain ? accessibleSymbolChain[0] : symbol, context.enclosingDeclaration);
+                        if (ts.length(parents_1)) {
+                            parentSpecifiers = parents_1.map(function (symbol) {
+                                return ts.some(symbol.declarations, hasNonGlobalAugmentationExternalModuleSymbol)
+                                    ? getSpecifierForModuleSymbol(symbol, context)
+                                    : undefined;
+                            });
+                            var indices = parents_1.map(function (_, i) { return i; });
+                            indices.sort(sortByBestName);
+                            var sortedParents = indices.map(function (i) { return parents_1[i]; });
+                            for (var _i = 0, sortedParents_1 = sortedParents; _i < sortedParents_1.length; _i++) {
+                                var parent = sortedParents_1[_i];
+                                var parentChain = getSymbolChain(parent, getQualifiedLeftMeaning(meaning), false);
+                                if (parentChain) {
+                                    if (parent.exports && parent.exports.get("export=") &&
+                                        getSymbolIfSameReference(parent.exports.get("export="), symbol)) {
+                                        accessibleSymbolChain = parentChain;
+                                        break;
+                                    }
+                                    accessibleSymbolChain = parentChain.concat(accessibleSymbolChain || [getAliasForSymbolInContainer(parent, symbol) || symbol]);
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                    if (accessibleSymbolChain) {
+                        return accessibleSymbolChain;
+                    }
+                    if (endOfChain ||
+                        !(symbol.flags & (2048 | 4096))) {
+                        if (!endOfChain && !yieldModuleSymbol && !!ts.forEach(symbol.declarations, hasNonGlobalAugmentationExternalModuleSymbol)) {
+                            return;
+                        }
+                        return [symbol];
+                    }
+                    function sortByBestName(a, b) {
+                        var specifierA = parentSpecifiers[a];
+                        var specifierB = parentSpecifiers[b];
+                        if (specifierA && specifierB) {
+                            var isBRelative = ts.pathIsRelative(specifierB);
+                            if (ts.pathIsRelative(specifierA) === isBRelative) {
+                                return ts.moduleSpecifiers.countPathComponents(specifierA) - ts.moduleSpecifiers.countPathComponents(specifierB);
+                            }
+                            if (isBRelative) {
+                                return -1;
+                            }
+                            return 1;
+                        }
+                        return 0;
+                    }
+                }
+            }
+            function typeParametersToTypeParameterDeclarations(symbol, context) {
+                var typeParameterNodes;
+                var targetSymbol = getTargetSymbol(symbol);
+                if (targetSymbol.flags & (32 | 64 | 524288)) {
+                    typeParameterNodes = ts.createNodeArray(ts.map(getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol), function (tp) { return typeParameterToDeclaration(tp, context); }));
+                }
+                return typeParameterNodes;
+            }
+            function lookupTypeParameterNodes(chain, index, context) {
+                ts.Debug.assert(chain && 0 <= index && index < chain.length);
+                var symbol = chain[index];
+                var symbolId = "" + getSymbolId(symbol);
+                if (context.typeParameterSymbolList && context.typeParameterSymbolList.get(symbolId)) {
+                    return undefined;
+                }
+                (context.typeParameterSymbolList || (context.typeParameterSymbolList = ts.createMap())).set(symbolId, true);
+                var typeParameterNodes;
+                if (context.flags & 512 && index < (chain.length - 1)) {
+                    var parentSymbol = symbol;
+                    var nextSymbol_1 = chain[index + 1];
+                    if (ts.getCheckFlags(nextSymbol_1) & 1) {
+                        var params = getTypeParametersOfClassOrInterface(parentSymbol.flags & 2097152 ? resolveAlias(parentSymbol) : parentSymbol);
+                        typeParameterNodes = mapToTypeNodes(ts.map(params, function (t) { return getMappedType(t, nextSymbol_1.mapper); }), context);
+                    }
+                    else {
+                        typeParameterNodes = typeParametersToTypeParameterDeclarations(symbol, context);
+                    }
+                }
+                return typeParameterNodes;
+            }
+            function getTopmostIndexedAccessType(top) {
+                if (ts.isIndexedAccessTypeNode(top.objectType)) {
+                    return getTopmostIndexedAccessType(top.objectType);
+                }
+                return top;
+            }
+            function getSpecifierForModuleSymbol(symbol, context) {
+                var file = ts.getDeclarationOfKind(symbol, 290);
+                if (!file) {
+                    var equivalentFileSymbol = ts.firstDefined(symbol.declarations, function (d) { return getFileSymbolIfFileSymbolExportEqualsContainer(d, symbol); });
+                    if (equivalentFileSymbol) {
+                        file = ts.getDeclarationOfKind(equivalentFileSymbol, 290);
+                    }
+                }
+                if (file && file.moduleName !== undefined) {
+                    return file.moduleName;
+                }
+                if (!file) {
+                    if (context.tracker.trackReferencedAmbientModule) {
+                        var ambientDecls = ts.filter(symbol.declarations, ts.isAmbientModule);
+                        if (ts.length(ambientDecls)) {
+                            for (var _i = 0, ambientDecls_1 = ambientDecls; _i < ambientDecls_1.length; _i++) {
+                                var decl = ambientDecls_1[_i];
+                                context.tracker.trackReferencedAmbientModule(decl, symbol);
+                            }
+                        }
+                    }
+                    if (ambientModuleSymbolRegex.test(symbol.escapedName)) {
+                        return symbol.escapedName.substring(1, symbol.escapedName.length - 1);
+                    }
+                }
+                if (!context.enclosingDeclaration || !context.tracker.moduleResolverHost) {
+                    if (ambientModuleSymbolRegex.test(symbol.escapedName)) {
+                        return symbol.escapedName.substring(1, symbol.escapedName.length - 1);
+                    }
+                    return ts.getSourceFileOfNode(ts.getNonAugmentationDeclaration(symbol)).fileName;
+                }
+                var contextFile = ts.getSourceFileOfNode(ts.getOriginalNode(context.enclosingDeclaration));
+                var links = getSymbolLinks(symbol);
+                var specifier = links.specifierCache && links.specifierCache.get(contextFile.path);
+                if (!specifier) {
+                    var isBundle_1 = (compilerOptions.out || compilerOptions.outFile);
+                    var moduleResolverHost = context.tracker.moduleResolverHost;
+                    var specifierCompilerOptions = isBundle_1 ? __assign(__assign({}, compilerOptions), { baseUrl: moduleResolverHost.getCommonSourceDirectory() }) : compilerOptions;
+                    specifier = ts.first(ts.moduleSpecifiers.getModuleSpecifiers(symbol, specifierCompilerOptions, contextFile, moduleResolverHost, { importModuleSpecifierPreference: isBundle_1 ? "non-relative" : "relative" }));
+                    links.specifierCache = links.specifierCache || ts.createMap();
+                    links.specifierCache.set(contextFile.path, specifier);
+                }
+                return specifier;
+            }
+            function symbolToTypeNode(symbol, context, meaning, overrideTypeArguments) {
+                var chain = lookupSymbolChain(symbol, context, meaning, !(context.flags & 16384));
+                var isTypeOf = meaning === 111551;
+                if (ts.some(chain[0].declarations, hasNonGlobalAugmentationExternalModuleSymbol)) {
+                    var nonRootParts = chain.length > 1 ? createAccessFromSymbolChain(chain, chain.length - 1, 1) : undefined;
+                    var typeParameterNodes = overrideTypeArguments || lookupTypeParameterNodes(chain, 0, context);
+                    var specifier = getSpecifierForModuleSymbol(chain[0], context);
+                    if (!(context.flags & 67108864) && ts.getEmitModuleResolutionKind(compilerOptions) === ts.ModuleResolutionKind.NodeJs && specifier.indexOf("/node_modules/") >= 0) {
+                        context.encounteredError = true;
+                        if (context.tracker.reportLikelyUnsafeImportRequiredError) {
+                            context.tracker.reportLikelyUnsafeImportRequiredError(specifier);
+                        }
+                    }
+                    var lit = ts.createLiteralTypeNode(ts.createLiteral(specifier));
+                    if (context.tracker.trackExternalModuleSymbolOfImportTypeNode)
+                        context.tracker.trackExternalModuleSymbolOfImportTypeNode(chain[0]);
+                    context.approximateLength += specifier.length + 10;
+                    if (!nonRootParts || ts.isEntityName(nonRootParts)) {
+                        if (nonRootParts) {
+                            var lastId = ts.isIdentifier(nonRootParts) ? nonRootParts : nonRootParts.right;
+                            lastId.typeArguments = undefined;
+                        }
+                        return ts.createImportTypeNode(lit, nonRootParts, typeParameterNodes, isTypeOf);
+                    }
+                    else {
+                        var splitNode = getTopmostIndexedAccessType(nonRootParts);
+                        var qualifier = splitNode.objectType.typeName;
+                        return ts.createIndexedAccessTypeNode(ts.createImportTypeNode(lit, qualifier, typeParameterNodes, isTypeOf), splitNode.indexType);
+                    }
+                }
+                var entityName = createAccessFromSymbolChain(chain, chain.length - 1, 0);
+                if (ts.isIndexedAccessTypeNode(entityName)) {
+                    return entityName;
+                }
+                if (isTypeOf) {
+                    return ts.createTypeQueryNode(entityName);
+                }
+                else {
+                    var lastId = ts.isIdentifier(entityName) ? entityName : entityName.right;
+                    var lastTypeArgs = lastId.typeArguments;
+                    lastId.typeArguments = undefined;
+                    return ts.createTypeReferenceNode(entityName, lastTypeArgs);
+                }
+                function createAccessFromSymbolChain(chain, index, stopper) {
+                    var typeParameterNodes = index === (chain.length - 1) ? overrideTypeArguments : lookupTypeParameterNodes(chain, index, context);
+                    var symbol = chain[index];
+                    var parent = chain[index - 1];
+                    var symbolName;
+                    if (index === 0) {
+                        context.flags |= 16777216;
+                        symbolName = getNameOfSymbolAsWritten(symbol, context);
+                        context.approximateLength += (symbolName ? symbolName.length : 0) + 1;
+                        context.flags ^= 16777216;
+                    }
+                    else {
+                        if (parent && getExportsOfSymbol(parent)) {
+                            var exports_1 = getExportsOfSymbol(parent);
+                            ts.forEachEntry(exports_1, function (ex, name) {
+                                if (getSymbolIfSameReference(ex, symbol) && !isLateBoundName(name) && name !== "export=") {
+                                    symbolName = ts.unescapeLeadingUnderscores(name);
+                                    return true;
+                                }
+                            });
+                        }
+                    }
+                    if (!symbolName) {
+                        symbolName = getNameOfSymbolAsWritten(symbol, context);
+                    }
+                    context.approximateLength += symbolName.length + 1;
+                    if (!(context.flags & 16) && parent &&
+                        getMembersOfSymbol(parent) && getMembersOfSymbol(parent).get(symbol.escapedName) &&
+                        getSymbolIfSameReference(getMembersOfSymbol(parent).get(symbol.escapedName), symbol)) {
+                        var LHS = createAccessFromSymbolChain(chain, index - 1, stopper);
+                        if (ts.isIndexedAccessTypeNode(LHS)) {
+                            return ts.createIndexedAccessTypeNode(LHS, ts.createLiteralTypeNode(ts.createLiteral(symbolName)));
+                        }
+                        else {
+                            return ts.createIndexedAccessTypeNode(ts.createTypeReferenceNode(LHS, typeParameterNodes), ts.createLiteralTypeNode(ts.createLiteral(symbolName)));
+                        }
+                    }
+                    var identifier = ts.setEmitFlags(ts.createIdentifier(symbolName, typeParameterNodes), 16777216);
+                    identifier.symbol = symbol;
+                    if (index > stopper) {
+                        var LHS = createAccessFromSymbolChain(chain, index - 1, stopper);
+                        if (!ts.isEntityName(LHS)) {
+                            return ts.Debug.fail("Impossible construct - an export of an indexed access cannot be reachable");
+                        }
+                        return ts.createQualifiedName(LHS, identifier);
+                    }
+                    return identifier;
+                }
+            }
+            function typeParameterShadowsNameInScope(escapedName, context, type) {
+                var result = resolveName(context.enclosingDeclaration, escapedName, 788968, undefined, escapedName, false);
+                if (result) {
+                    if (result.flags & 262144 && result === type.symbol) {
+                        return false;
+                    }
+                    return true;
+                }
+                return false;
+            }
+            function typeParameterToName(type, context) {
+                if (context.flags & 4 && context.typeParameterNames) {
+                    var cached = context.typeParameterNames.get("" + getTypeId(type));
+                    if (cached) {
+                        return cached;
+                    }
+                }
+                var result = symbolToName(type.symbol, context, 788968, true);
+                if (!(result.kind & 75)) {
+                    return ts.createIdentifier("(Missing type parameter)");
+                }
+                if (context.flags & 4) {
+                    var rawtext = result.escapedText;
+                    var i = 0;
+                    var text = rawtext;
+                    while ((context.typeParameterNamesByText && context.typeParameterNamesByText.get(text)) || typeParameterShadowsNameInScope(text, context, type)) {
+                        i++;
+                        text = rawtext + "_" + i;
+                    }
+                    if (text !== rawtext) {
+                        result = ts.createIdentifier(text, result.typeArguments);
+                    }
+                    (context.typeParameterNames || (context.typeParameterNames = ts.createMap())).set("" + getTypeId(type), result);
+                    (context.typeParameterNamesByText || (context.typeParameterNamesByText = ts.createMap())).set(result.escapedText, true);
+                }
+                return result;
+            }
+            function symbolToName(symbol, context, meaning, expectsIdentifier) {
+                var chain = lookupSymbolChain(symbol, context, meaning);
+                if (expectsIdentifier && chain.length !== 1
+                    && !context.encounteredError
+                    && !(context.flags & 65536)) {
+                    context.encounteredError = true;
+                }
+                return createEntityNameFromSymbolChain(chain, chain.length - 1);
+                function createEntityNameFromSymbolChain(chain, index) {
+                    var typeParameterNodes = lookupTypeParameterNodes(chain, index, context);
+                    var symbol = chain[index];
+                    if (index === 0) {
+                        context.flags |= 16777216;
+                    }
+                    var symbolName = getNameOfSymbolAsWritten(symbol, context);
+                    if (index === 0) {
+                        context.flags ^= 16777216;
+                    }
+                    var identifier = ts.setEmitFlags(ts.createIdentifier(symbolName, typeParameterNodes), 16777216);
+                    identifier.symbol = symbol;
+                    return index > 0 ? ts.createQualifiedName(createEntityNameFromSymbolChain(chain, index - 1), identifier) : identifier;
+                }
+            }
+            function symbolToExpression(symbol, context, meaning) {
+                var chain = lookupSymbolChain(symbol, context, meaning);
+                return createExpressionFromSymbolChain(chain, chain.length - 1);
+                function createExpressionFromSymbolChain(chain, index) {
+                    var typeParameterNodes = lookupTypeParameterNodes(chain, index, context);
+                    var symbol = chain[index];
+                    if (index === 0) {
+                        context.flags |= 16777216;
+                    }
+                    var symbolName = getNameOfSymbolAsWritten(symbol, context);
+                    if (index === 0) {
+                        context.flags ^= 16777216;
+                    }
+                    var firstChar = symbolName.charCodeAt(0);
+                    if (ts.isSingleOrDoubleQuote(firstChar) && ts.some(symbol.declarations, hasNonGlobalAugmentationExternalModuleSymbol)) {
+                        return ts.createLiteral(getSpecifierForModuleSymbol(symbol, context));
+                    }
+                    var canUsePropertyAccess = firstChar === 35 ?
+                        symbolName.length > 1 && ts.isIdentifierStart(symbolName.charCodeAt(1), languageVersion) :
+                        ts.isIdentifierStart(firstChar, languageVersion);
+                    if (index === 0 || canUsePropertyAccess) {
+                        var identifier = ts.setEmitFlags(ts.createIdentifier(symbolName, typeParameterNodes), 16777216);
+                        identifier.symbol = symbol;
+                        return index > 0 ? ts.createPropertyAccess(createExpressionFromSymbolChain(chain, index - 1), identifier) : identifier;
+                    }
+                    else {
+                        if (firstChar === 91) {
+                            symbolName = symbolName.substring(1, symbolName.length - 1);
+                            firstChar = symbolName.charCodeAt(0);
+                        }
+                        var expression = void 0;
+                        if (ts.isSingleOrDoubleQuote(firstChar)) {
+                            expression = ts.createLiteral(symbolName.substring(1, symbolName.length - 1).replace(/\\./g, function (s) { return s.substring(1); }));
+                            expression.singleQuote = firstChar === 39;
+                        }
+                        else if (("" + +symbolName) === symbolName) {
+                            expression = ts.createLiteral(+symbolName);
+                        }
+                        if (!expression) {
+                            expression = ts.setEmitFlags(ts.createIdentifier(symbolName, typeParameterNodes), 16777216);
+                            expression.symbol = symbol;
+                        }
+                        return ts.createElementAccess(createExpressionFromSymbolChain(chain, index - 1), expression);
+                    }
+                }
+            }
+            function isSingleQuotedStringNamed(d) {
+                var name = ts.getNameOfDeclaration(d);
+                if (name && ts.isStringLiteral(name) && (name.singleQuote ||
+                    (!ts.nodeIsSynthesized(name) && ts.startsWith(ts.getTextOfNode(name, false), "'")))) {
+                    return true;
+                }
+                return false;
+            }
+            function getPropertyNameNodeForSymbol(symbol, context) {
+                var singleQuote = !!ts.length(symbol.declarations) && ts.every(symbol.declarations, isSingleQuotedStringNamed);
+                var fromNameType = getPropertyNameNodeForSymbolFromNameType(symbol, context, singleQuote);
+                if (fromNameType) {
+                    return fromNameType;
+                }
+                if (ts.isKnownSymbol(symbol)) {
+                    return ts.createComputedPropertyName(ts.createPropertyAccess(ts.createIdentifier("Symbol"), symbol.escapedName.substr(3)));
+                }
+                var rawName = ts.unescapeLeadingUnderscores(symbol.escapedName);
+                return createPropertyNameNodeForIdentifierOrLiteral(rawName, singleQuote);
+            }
+            function getPropertyNameNodeForSymbolFromNameType(symbol, context, singleQuote) {
+                var nameType = getSymbolLinks(symbol).nameType;
+                if (nameType) {
+                    if (nameType.flags & 384) {
+                        var name = "" + nameType.value;
+                        if (!ts.isIdentifierText(name, compilerOptions.target) && !isNumericLiteralName(name)) {
+                            return ts.createLiteral(name, !!singleQuote);
+                        }
+                        if (isNumericLiteralName(name) && ts.startsWith(name, "-")) {
+                            return ts.createComputedPropertyName(ts.createLiteral(+name));
+                        }
+                        return createPropertyNameNodeForIdentifierOrLiteral(name);
+                    }
+                    if (nameType.flags & 8192) {
+                        return ts.createComputedPropertyName(symbolToExpression(nameType.symbol, context, 111551));
+                    }
+                }
+            }
+            function createPropertyNameNodeForIdentifierOrLiteral(name, singleQuote) {
+                return ts.isIdentifierText(name, compilerOptions.target) ? ts.createIdentifier(name) : ts.createLiteral(isNumericLiteralName(name) && +name >= 0 ? +name : name, !!singleQuote);
+            }
+            function cloneNodeBuilderContext(context) {
+                var initial = __assign({}, context);
+                if (initial.typeParameterNames) {
+                    initial.typeParameterNames = ts.cloneMap(initial.typeParameterNames);
+                }
+                if (initial.typeParameterNamesByText) {
+                    initial.typeParameterNamesByText = ts.cloneMap(initial.typeParameterNamesByText);
+                }
+                if (initial.typeParameterSymbolList) {
+                    initial.typeParameterSymbolList = ts.cloneMap(initial.typeParameterSymbolList);
+                }
+                return initial;
+            }
+            function getDeclarationWithTypeAnnotation(symbol, enclosingDeclaration) {
+                return symbol.declarations && ts.find(symbol.declarations, function (s) { return !!ts.getEffectiveTypeAnnotationNode(s) && (!enclosingDeclaration || !!ts.findAncestor(s, function (n) { return n === enclosingDeclaration; })); });
+            }
+            function existingTypeNodeIsNotReferenceOrIsReferenceWithCompatibleTypeArgumentCount(existing, type) {
+                return !(ts.getObjectFlags(type) & 4) || !ts.isTypeReferenceNode(existing) || ts.length(existing.typeArguments) >= getMinTypeArgumentCount(type.target.typeParameters);
+            }
+            function serializeTypeForDeclaration(context, type, symbol, enclosingDeclaration, includePrivateSymbol, bundled) {
+                if (type !== errorType && enclosingDeclaration) {
+                    var declWithExistingAnnotation = getDeclarationWithTypeAnnotation(symbol, enclosingDeclaration);
+                    if (declWithExistingAnnotation && !ts.isFunctionLikeDeclaration(declWithExistingAnnotation)) {
+                        var existing = ts.getEffectiveTypeAnnotationNode(declWithExistingAnnotation);
+                        if (getTypeFromTypeNode(existing) === type && existingTypeNodeIsNotReferenceOrIsReferenceWithCompatibleTypeArgumentCount(existing, type)) {
+                            var result_4 = serializeExistingTypeNode(context, existing, includePrivateSymbol, bundled);
+                            if (result_4) {
+                                return result_4;
+                            }
+                        }
+                    }
+                }
+                var oldFlags = context.flags;
+                if (type.flags & 8192 &&
+                    type.symbol === symbol) {
+                    context.flags |= 1048576;
+                }
+                var result = typeToTypeNodeHelper(type, context);
+                context.flags = oldFlags;
+                return result;
+            }
+            function serializeReturnTypeForSignature(context, type, signature, includePrivateSymbol, bundled) {
+                if (type !== errorType && context.enclosingDeclaration) {
+                    var annotation = signature.declaration && ts.getEffectiveReturnTypeNode(signature.declaration);
+                    if (!!ts.findAncestor(annotation, function (n) { return n === context.enclosingDeclaration; }) && annotation && instantiateType(getTypeFromTypeNode(annotation), signature.mapper) === type && existingTypeNodeIsNotReferenceOrIsReferenceWithCompatibleTypeArgumentCount(annotation, type)) {
+                        var result = serializeExistingTypeNode(context, annotation, includePrivateSymbol, bundled);
+                        if (result) {
+                            return result;
+                        }
+                    }
+                }
+                return typeToTypeNodeHelper(type, context);
+            }
+            function serializeExistingTypeNode(context, existing, includePrivateSymbol, bundled) {
+                if (cancellationToken && cancellationToken.throwIfCancellationRequested) {
+                    cancellationToken.throwIfCancellationRequested();
+                }
+                var hadError = false;
+                var transformed = ts.visitNode(existing, visitExistingNodeTreeSymbols);
+                if (hadError) {
+                    return undefined;
+                }
+                return transformed === existing ? ts.getMutableClone(existing) : transformed;
+                function visitExistingNodeTreeSymbols(node) {
+                    var _a, _b;
+                    if (ts.isJSDocAllType(node) || node.kind === 302) {
+                        return ts.createKeywordTypeNode(125);
+                    }
+                    if (ts.isJSDocUnknownType(node)) {
+                        return ts.createKeywordTypeNode(148);
+                    }
+                    if (ts.isJSDocNullableType(node)) {
+                        return ts.createUnionTypeNode([ts.visitNode(node.type, visitExistingNodeTreeSymbols), ts.createKeywordTypeNode(100)]);
+                    }
+                    if (ts.isJSDocOptionalType(node)) {
+                        return ts.createUnionTypeNode([ts.visitNode(node.type, visitExistingNodeTreeSymbols), ts.createKeywordTypeNode(146)]);
+                    }
+                    if (ts.isJSDocNonNullableType(node)) {
+                        return ts.visitNode(node.type, visitExistingNodeTreeSymbols);
+                    }
+                    if (ts.isJSDocVariadicType(node)) {
+                        return ts.createArrayTypeNode(ts.visitNode(node.type, visitExistingNodeTreeSymbols));
+                    }
+                    if (ts.isJSDocTypeLiteral(node)) {
+                        return ts.createTypeLiteralNode(ts.map(node.jsDocPropertyTags, function (t) {
+                            var name = ts.isIdentifier(t.name) ? t.name : t.name.right;
+                            var typeViaParent = getTypeOfPropertyOfType(getTypeFromTypeNode(node), name.escapedText);
+                            var overrideTypeNode = typeViaParent && t.typeExpression && getTypeFromTypeNode(t.typeExpression.type) !== typeViaParent ? typeToTypeNodeHelper(typeViaParent, context) : undefined;
+                            return ts.createPropertySignature(undefined, name, t.typeExpression && ts.isJSDocOptionalType(t.typeExpression.type) ? ts.createToken(57) : undefined, overrideTypeNode || (t.typeExpression && ts.visitNode(t.typeExpression.type, visitExistingNodeTreeSymbols)) || ts.createKeywordTypeNode(125), undefined);
+                        }));
+                    }
+                    if (ts.isTypeReferenceNode(node) && ts.isIdentifier(node.typeName) && node.typeName.escapedText === "") {
+                        return ts.setOriginalNode(ts.createKeywordTypeNode(125), node);
+                    }
+                    if ((ts.isExpressionWithTypeArguments(node) || ts.isTypeReferenceNode(node)) && ts.isJSDocIndexSignature(node)) {
+                        return ts.createTypeLiteralNode([ts.createIndexSignature(undefined, undefined, [ts.createParameter(undefined, undefined, undefined, "x", undefined, ts.visitNode(node.typeArguments[0], visitExistingNodeTreeSymbols))], ts.visitNode(node.typeArguments[1], visitExistingNodeTreeSymbols))]);
+                    }
+                    if (ts.isJSDocFunctionType(node)) {
+                        if (ts.isJSDocConstructSignature(node)) {
+                            var newTypeNode_1;
+                            return ts.createConstructorTypeNode(ts.visitNodes(node.typeParameters, visitExistingNodeTreeSymbols), ts.mapDefined(node.parameters, function (p, i) { return p.name && ts.isIdentifier(p.name) && p.name.escapedText === "new" ? (newTypeNode_1 = p.type, undefined) : ts.createParameter(undefined, undefined, getEffectiveDotDotDotForParameter(p), p.name || getEffectiveDotDotDotForParameter(p) ? "args" : "arg" + i, p.questionToken, ts.visitNode(p.type, visitExistingNodeTreeSymbols), undefined); }), ts.visitNode(newTypeNode_1 || node.type, visitExistingNodeTreeSymbols));
+                        }
+                        else {
+                            return ts.createFunctionTypeNode(ts.visitNodes(node.typeParameters, visitExistingNodeTreeSymbols), ts.map(node.parameters, function (p, i) { return ts.createParameter(undefined, undefined, getEffectiveDotDotDotForParameter(p), p.name || getEffectiveDotDotDotForParameter(p) ? "args" : "arg" + i, p.questionToken, ts.visitNode(p.type, visitExistingNodeTreeSymbols), undefined); }), ts.visitNode(node.type, visitExistingNodeTreeSymbols));
+                        }
+                    }
+                    if (ts.isTypeReferenceNode(node) && ts.isInJSDoc(node) && (getIntendedTypeFromJSDocTypeReference(node) || unknownSymbol === resolveTypeReferenceName(getTypeReferenceName(node), 788968, true))) {
+                        return ts.setOriginalNode(typeToTypeNodeHelper(getTypeFromTypeNode(node), context), node);
+                    }
+                    if (ts.isLiteralImportTypeNode(node)) {
+                        return ts.updateImportTypeNode(node, ts.updateLiteralTypeNode(node.argument, rewriteModuleSpecifier(node, node.argument.literal)), node.qualifier, ts.visitNodes(node.typeArguments, visitExistingNodeTreeSymbols, ts.isTypeNode), node.isTypeOf);
+                    }
+                    if (ts.isEntityName(node) || ts.isEntityNameExpression(node)) {
+                        var leftmost = ts.getFirstIdentifier(node);
+                        if (ts.isInJSFile(node) && (ts.isExportsIdentifier(leftmost) || ts.isModuleExportsAccessExpression(leftmost.parent) || (ts.isQualifiedName(leftmost.parent) && ts.isModuleIdentifier(leftmost.parent.left) && ts.isExportsIdentifier(leftmost.parent.right)))) {
+                            hadError = true;
+                            return node;
+                        }
+                        var sym = resolveEntityName(leftmost, 67108863, true, true);
+                        if (sym) {
+                            if (isSymbolAccessible(sym, context.enclosingDeclaration, 67108863, false).accessibility !== 0) {
+                                hadError = true;
+                            }
+                            else {
+                                (_b = (_a = context.tracker) === null || _a === void 0 ? void 0 : _a.trackSymbol) === null || _b === void 0 ? void 0 : _b.call(_a, sym, context.enclosingDeclaration, 67108863);
+                                includePrivateSymbol === null || includePrivateSymbol === void 0 ? void 0 : includePrivateSymbol(sym);
+                            }
+                            if (ts.isIdentifier(node)) {
+                                var name = sym.flags & 262144 ? typeParameterToName(getDeclaredTypeOfSymbol(sym), context) : ts.getMutableClone(node);
+                                name.symbol = sym;
+                                return ts.setEmitFlags(ts.setOriginalNode(name, node), 16777216);
+                            }
+                        }
+                    }
+                    return ts.visitEachChild(node, visitExistingNodeTreeSymbols, ts.nullTransformationContext);
+                    function getEffectiveDotDotDotForParameter(p) {
+                        return p.dotDotDotToken || (p.type && ts.isJSDocVariadicType(p.type) ? ts.createToken(25) : undefined);
+                    }
+                    function rewriteModuleSpecifier(parent, lit) {
+                        if (bundled) {
+                            if (context.tracker && context.tracker.moduleResolverHost) {
+                                var targetFile = getExternalModuleFileFromDeclaration(parent);
+                                if (targetFile) {
+                                    var getCanonicalFileName = ts.createGetCanonicalFileName(!!host.useCaseSensitiveFileNames);
+                                    var resolverHost = {
+                                        getCanonicalFileName: getCanonicalFileName,
+                                        getCurrentDirectory: function () { return context.tracker.moduleResolverHost.getCurrentDirectory(); },
+                                        getCommonSourceDirectory: function () { return context.tracker.moduleResolverHost.getCommonSourceDirectory(); }
+                                    };
+                                    var newName = ts.getResolvedExternalModuleName(resolverHost, targetFile);
+                                    return ts.createLiteral(newName);
+                                }
+                            }
+                        }
+                        else {
+                            if (context.tracker && context.tracker.trackExternalModuleSymbolOfImportTypeNode) {
+                                var moduleSym = resolveExternalModuleNameWorker(lit, lit, undefined);
+                                if (moduleSym) {
+                                    context.tracker.trackExternalModuleSymbolOfImportTypeNode(moduleSym);
+                                }
+                            }
+                        }
+                        return lit;
+                    }
+                }
+            }
+            function symbolTableToDeclarationStatements(symbolTable, context, bundled) {
+                var serializePropertySymbolForClass = makeSerializePropertySymbol(ts.createProperty, 161, true);
+                var serializePropertySymbolForInterfaceWorker = makeSerializePropertySymbol(function (_decorators, mods, name, question, type, initializer) { return ts.createPropertySignature(mods, name, question, type, initializer); }, 160, false);
+                var enclosingDeclaration = context.enclosingDeclaration;
+                var results = [];
+                var visitedSymbols = ts.createMap();
+                var deferredPrivates;
+                var oldcontext = context;
+                context = __assign(__assign({}, oldcontext), { usedSymbolNames: ts.createMap(), remappedSymbolNames: ts.createMap(), tracker: __assign(__assign({}, oldcontext.tracker), { trackSymbol: function (sym, decl, meaning) {
+                            var accessibleResult = isSymbolAccessible(sym, decl, meaning, false);
+                            if (accessibleResult.accessibility === 0) {
+                                var chain = lookupSymbolChainWorker(sym, context, meaning);
+                                if (!(sym.flags & 4)) {
+                                    includePrivateSymbol(chain[0]);
+                                }
+                            }
+                            else if (oldcontext.tracker && oldcontext.tracker.trackSymbol) {
+                                oldcontext.tracker.trackSymbol(sym, decl, meaning);
+                            }
+                        } }) });
+                if (oldcontext.usedSymbolNames) {
+                    oldcontext.usedSymbolNames.forEach(function (_, name) {
+                        context.usedSymbolNames.set(name, true);
+                    });
+                }
+                ts.forEachEntry(symbolTable, function (symbol, name) {
+                    var baseName = ts.unescapeLeadingUnderscores(name);
+                    void getInternalSymbolName(symbol, baseName);
+                });
+                var addingDeclare = !bundled;
+                var exportEquals = symbolTable.get("export=");
+                if (exportEquals && symbolTable.size > 1 && exportEquals.flags & 2097152) {
+                    symbolTable = ts.createSymbolTable();
+                    symbolTable.set("export=", exportEquals);
+                }
+                visitSymbolTable(symbolTable);
+                return mergeRedundantStatements(results);
+                function isIdentifierAndNotUndefined(node) {
+                    return !!node && node.kind === 75;
+                }
+                function getNamesOfDeclaration(statement) {
+                    if (ts.isVariableStatement(statement)) {
+                        return ts.filter(ts.map(statement.declarationList.declarations, ts.getNameOfDeclaration), isIdentifierAndNotUndefined);
+                    }
+                    return ts.filter([ts.getNameOfDeclaration(statement)], isIdentifierAndNotUndefined);
+                }
+                function flattenExportAssignedNamespace(statements) {
+                    var exportAssignment = ts.find(statements, ts.isExportAssignment);
+                    var ns = ts.find(statements, ts.isModuleDeclaration);
+                    if (ns && exportAssignment && exportAssignment.isExportEquals &&
+                        ts.isIdentifier(exportAssignment.expression) && ts.isIdentifier(ns.name) && ts.idText(ns.name) === ts.idText(exportAssignment.expression) &&
+                        ns.body && ts.isModuleBlock(ns.body)) {
+                        var excessExports = ts.filter(statements, function (s) { return !!(ts.getModifierFlags(s) & 1); });
+                        if (ts.length(excessExports)) {
+                            ns.body.statements = ts.createNodeArray(__spreadArrays(ns.body.statements, [ts.createExportDeclaration(undefined, undefined, ts.createNamedExports(ts.map(ts.flatMap(excessExports, function (e) { return getNamesOfDeclaration(e); }), function (id) { return ts.createExportSpecifier(undefined, id); })), undefined)]));
+                        }
+                        if (!ts.find(statements, function (s) { return s !== ns && ts.nodeHasName(s, ns.name); })) {
+                            results = [];
+                            ts.forEach(ns.body.statements, function (s) {
+                                addResult(s, 0);
+                            });
+                            statements = __spreadArrays(ts.filter(statements, function (s) { return s !== ns && s !== exportAssignment; }), results);
+                        }
+                    }
+                    return statements;
+                }
+                function mergeExportDeclarations(statements) {
+                    var exports = ts.filter(statements, function (d) { return ts.isExportDeclaration(d) && !d.moduleSpecifier && !!d.exportClause && ts.isNamedExports(d.exportClause); });
+                    if (ts.length(exports) > 1) {
+                        var nonExports = ts.filter(statements, function (d) { return !ts.isExportDeclaration(d) || !!d.moduleSpecifier || !d.exportClause; });
+                        statements = __spreadArrays(nonExports, [ts.createExportDeclaration(undefined, undefined, ts.createNamedExports(ts.flatMap(exports, function (e) { return ts.cast(e.exportClause, ts.isNamedExports).elements; })), undefined)]);
+                    }
+                    var reexports = ts.filter(statements, function (d) { return ts.isExportDeclaration(d) && !!d.moduleSpecifier && !!d.exportClause && ts.isNamedExports(d.exportClause); });
+                    if (ts.length(reexports) > 1) {
+                        var groups = ts.group(reexports, function (decl) { return ts.isStringLiteral(decl.moduleSpecifier) ? ">" + decl.moduleSpecifier.text : ">"; });
+                        if (groups.length !== reexports.length) {
+                            var _loop_8 = function (group_1) {
+                                if (group_1.length > 1) {
+                                    statements = __spreadArrays(ts.filter(statements, function (s) { return group_1.indexOf(s) === -1; }), [
+                                        ts.createExportDeclaration(undefined, undefined, ts.createNamedExports(ts.flatMap(group_1, function (e) { return ts.cast(e.exportClause, ts.isNamedExports).elements; })), group_1[0].moduleSpecifier)
+                                    ]);
+                                }
+                            };
+                            for (var _i = 0, groups_1 = groups; _i < groups_1.length; _i++) {
+                                var group_1 = groups_1[_i];
+                                _loop_8(group_1);
+                            }
+                        }
+                    }
+                    return statements;
+                }
+                function inlineExportModifiers(statements) {
+                    var exportDecl = ts.find(statements, function (d) { return ts.isExportDeclaration(d) && !d.moduleSpecifier && !!d.exportClause; });
+                    if (exportDecl && exportDecl.exportClause && ts.isNamedExports(exportDecl.exportClause)) {
+                        var replacements = ts.mapDefined(exportDecl.exportClause.elements, function (e) {
+                            if (!e.propertyName) {
+                                var associated = ts.filter(statements, function (s) { return ts.nodeHasName(s, e.name); });
+                                if (ts.length(associated) && ts.every(associated, canHaveExportModifier)) {
+                                    ts.forEach(associated, addExportModifier);
+                                    return undefined;
+                                }
+                            }
+                            return e;
+                        });
+                        if (!ts.length(replacements)) {
+                            statements = ts.filter(statements, function (s) { return s !== exportDecl; });
+                        }
+                        else {
+                            exportDecl.exportClause.elements = ts.createNodeArray(replacements);
+                        }
+                    }
+                    return statements;
+                }
+                function mergeRedundantStatements(statements) {
+                    statements = flattenExportAssignedNamespace(statements);
+                    statements = mergeExportDeclarations(statements);
+                    statements = inlineExportModifiers(statements);
+                    if (enclosingDeclaration &&
+                        ((ts.isSourceFile(enclosingDeclaration) && ts.isExternalOrCommonJsModule(enclosingDeclaration)) || ts.isModuleDeclaration(enclosingDeclaration)) &&
+                        (!ts.some(statements, ts.isExternalModuleIndicator) || (!ts.hasScopeMarker(statements) && ts.some(statements, ts.needsScopeMarker)))) {
+                        statements.push(ts.createEmptyExports());
+                    }
+                    return statements;
+                }
+                function canHaveExportModifier(node) {
+                    return ts.isEnumDeclaration(node) ||
+                        ts.isVariableStatement(node) ||
+                        ts.isFunctionDeclaration(node) ||
+                        ts.isClassDeclaration(node) ||
+                        (ts.isModuleDeclaration(node) && !ts.isExternalModuleAugmentation(node) && !ts.isGlobalScopeAugmentation(node)) ||
+                        ts.isInterfaceDeclaration(node) ||
+                        isTypeDeclaration(node);
+                }
+                function addExportModifier(statement) {
+                    var flags = (ts.getModifierFlags(statement) | 1) & ~2;
+                    statement.modifiers = ts.createNodeArray(ts.createModifiersFromModifierFlags(flags));
+                    statement.modifierFlagsCache = 0;
+                }
+                function visitSymbolTable(symbolTable, suppressNewPrivateContext, propertyAsAlias) {
+                    var oldDeferredPrivates = deferredPrivates;
+                    if (!suppressNewPrivateContext) {
+                        deferredPrivates = ts.createMap();
+                    }
+                    symbolTable.forEach(function (symbol) {
+                        serializeSymbol(symbol, false, !!propertyAsAlias);
+                    });
+                    if (!suppressNewPrivateContext) {
+                        deferredPrivates.forEach(function (symbol) {
+                            serializeSymbol(symbol, true, !!propertyAsAlias);
+                        });
+                    }
+                    deferredPrivates = oldDeferredPrivates;
+                }
+                function serializeSymbol(symbol, isPrivate, propertyAsAlias) {
+                    var visitedSym = getMergedSymbol(symbol);
+                    if (visitedSymbols.has("" + getSymbolId(visitedSym))) {
+                        return;
+                    }
+                    visitedSymbols.set("" + getSymbolId(visitedSym), true);
+                    var skipMembershipCheck = !isPrivate;
+                    if (skipMembershipCheck || (!!ts.length(symbol.declarations) && ts.some(symbol.declarations, function (d) { return !!ts.findAncestor(d, function (n) { return n === enclosingDeclaration; }); }))) {
+                        var oldContext = context;
+                        context = cloneNodeBuilderContext(context);
+                        var result = serializeSymbolWorker(symbol, isPrivate, propertyAsAlias);
+                        context = oldContext;
+                        return result;
+                    }
+                }
+                function serializeSymbolWorker(symbol, isPrivate, propertyAsAlias) {
+                    var symbolName = ts.unescapeLeadingUnderscores(symbol.escapedName);
+                    var isDefault = symbol.escapedName === "default";
+                    if (!(context.flags & 131072) && ts.isStringANonContextualKeyword(symbolName) && !isDefault) {
+                        context.encounteredError = true;
+                        return;
+                    }
+                    var needsPostExportDefault = isDefault && !!(symbol.flags & -113
+                        || (symbol.flags & 16 && ts.length(getPropertiesOfType(getTypeOfSymbol(symbol))))) && !(symbol.flags & 2097152);
+                    if (needsPostExportDefault) {
+                        isPrivate = true;
+                    }
+                    var modifierFlags = (!isPrivate ? 1 : 0) | (isDefault && !needsPostExportDefault ? 512 : 0);
+                    var isConstMergedWithNS = symbol.flags & 1536 &&
+                        symbol.flags & (2 | 1 | 4) &&
+                        symbol.escapedName !== "export=";
+                    var isConstMergedWithNSPrintableAsSignatureMerge = isConstMergedWithNS && isTypeRepresentableAsFunctionNamespaceMerge(getTypeOfSymbol(symbol), symbol);
+                    if (symbol.flags & (16 | 8192) || isConstMergedWithNSPrintableAsSignatureMerge) {
+                        serializeAsFunctionNamespaceMerge(getTypeOfSymbol(symbol), symbol, getInternalSymbolName(symbol, symbolName), modifierFlags);
+                    }
+                    if (symbol.flags & 524288) {
+                        serializeTypeAlias(symbol, symbolName, modifierFlags);
+                    }
+                    if (symbol.flags & (2 | 1 | 4)
+                        && symbol.escapedName !== "export="
+                        && !(symbol.flags & 4194304)
+                        && !(symbol.flags & 32)
+                        && !isConstMergedWithNSPrintableAsSignatureMerge) {
+                        serializeVariableOrProperty(symbol, symbolName, isPrivate, needsPostExportDefault, propertyAsAlias, modifierFlags);
+                    }
+                    if (symbol.flags & 384) {
+                        serializeEnum(symbol, symbolName, modifierFlags);
+                    }
+                    if (symbol.flags & 32) {
+                        if (symbol.flags & 4 && ts.isBinaryExpression(symbol.valueDeclaration.parent) && ts.isClassExpression(symbol.valueDeclaration.parent.right)) {
+                            serializeAsAlias(symbol, getInternalSymbolName(symbol, symbolName), modifierFlags);
+                        }
+                        else {
+                            serializeAsClass(symbol, getInternalSymbolName(symbol, symbolName), modifierFlags);
+                        }
+                    }
+                    if ((symbol.flags & (512 | 1024) && (!isConstMergedWithNS || isTypeOnlyNamespace(symbol))) || isConstMergedWithNSPrintableAsSignatureMerge) {
+                        serializeModule(symbol, symbolName, modifierFlags);
+                    }
+                    if (symbol.flags & 64) {
+                        serializeInterface(symbol, symbolName, modifierFlags);
+                    }
+                    if (symbol.flags & 2097152) {
+                        serializeAsAlias(symbol, getInternalSymbolName(symbol, symbolName), modifierFlags);
+                    }
+                    if (symbol.flags & 4 && symbol.escapedName === "export=") {
+                        serializeMaybeAliasAssignment(symbol);
+                    }
+                    if (symbol.flags & 8388608) {
+                        for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+                            var node = _a[_i];
+                            var resolvedModule = resolveExternalModuleName(node, node.moduleSpecifier);
+                            if (!resolvedModule)
+                                continue;
+                            addResult(ts.createExportDeclaration(undefined, undefined, undefined, ts.createLiteral(getSpecifierForModuleSymbol(resolvedModule, context))), 0);
+                        }
+                    }
+                    if (needsPostExportDefault) {
+                        addResult(ts.createExportAssignment(undefined, undefined, false, ts.createIdentifier(getInternalSymbolName(symbol, symbolName))), 0);
+                    }
+                }
+                function includePrivateSymbol(symbol) {
+                    if (ts.some(symbol.declarations, ts.isParameterDeclaration))
+                        return;
+                    ts.Debug.assertIsDefined(deferredPrivates);
+                    getUnusedName(ts.unescapeLeadingUnderscores(symbol.escapedName), symbol);
+                    deferredPrivates.set("" + getSymbolId(symbol), symbol);
+                }
+                function isExportingScope(enclosingDeclaration) {
+                    return ((ts.isSourceFile(enclosingDeclaration) && (ts.isExternalOrCommonJsModule(enclosingDeclaration) || ts.isJsonSourceFile(enclosingDeclaration))) ||
+                        (ts.isAmbientModule(enclosingDeclaration) && !ts.isGlobalScopeAugmentation(enclosingDeclaration)));
+                }
+                function addResult(node, additionalModifierFlags) {
+                    var newModifierFlags = 0;
+                    if (additionalModifierFlags & 1 &&
+                        enclosingDeclaration &&
+                        isExportingScope(enclosingDeclaration) &&
+                        canHaveExportModifier(node)) {
+                        newModifierFlags |= 1;
+                    }
+                    if (addingDeclare && !(newModifierFlags & 1) &&
+                        (!enclosingDeclaration || !(enclosingDeclaration.flags & 8388608)) &&
+                        (ts.isEnumDeclaration(node) || ts.isVariableStatement(node) || ts.isFunctionDeclaration(node) || ts.isClassDeclaration(node) || ts.isModuleDeclaration(node))) {
+                        newModifierFlags |= 2;
+                    }
+                    if ((additionalModifierFlags & 512) && (ts.isClassDeclaration(node) || ts.isInterfaceDeclaration(node) || ts.isFunctionDeclaration(node))) {
+                        newModifierFlags |= 512;
+                    }
+                    if (newModifierFlags) {
+                        node.modifiers = ts.createNodeArray(ts.createModifiersFromModifierFlags(newModifierFlags | ts.getModifierFlags(node)));
+                        node.modifierFlagsCache = 0;
+                    }
+                    results.push(node);
+                }
+                function serializeTypeAlias(symbol, symbolName, modifierFlags) {
+                    var aliasType = getDeclaredTypeOfTypeAlias(symbol);
+                    var typeParams = getSymbolLinks(symbol).typeParameters;
+                    var typeParamDecls = ts.map(typeParams, function (p) { return typeParameterToDeclaration(p, context); });
+                    var jsdocAliasDecl = ts.find(symbol.declarations, ts.isJSDocTypeAlias);
+                    var commentText = jsdocAliasDecl ? jsdocAliasDecl.comment || jsdocAliasDecl.parent.comment : undefined;
+                    var oldFlags = context.flags;
+                    context.flags |= 8388608;
+                    addResult(ts.setSyntheticLeadingComments(ts.createTypeAliasDeclaration(undefined, undefined, getInternalSymbolName(symbol, symbolName), typeParamDecls, typeToTypeNodeHelper(aliasType, context)), !commentText ? [] : [{ kind: 3, text: "*\n * " + commentText.replace(/\n/g, "\n * ") + "\n ", pos: -1, end: -1, hasTrailingNewLine: true }]), modifierFlags);
+                    context.flags = oldFlags;
+                }
+                function serializeInterface(symbol, symbolName, modifierFlags) {
+                    var interfaceType = getDeclaredTypeOfClassOrInterface(symbol);
+                    var localParams = getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol);
+                    var typeParamDecls = ts.map(localParams, function (p) { return typeParameterToDeclaration(p, context); });
+                    var baseTypes = getBaseTypes(interfaceType);
+                    var baseType = ts.length(baseTypes) ? getIntersectionType(baseTypes) : undefined;
+                    var members = ts.flatMap(getPropertiesOfType(interfaceType), function (p) { return serializePropertySymbolForInterface(p, baseType); });
+                    var callSignatures = serializeSignatures(0, interfaceType, baseType, 165);
+                    var constructSignatures = serializeSignatures(1, interfaceType, baseType, 166);
+                    var indexSignatures = serializeIndexSignatures(interfaceType, baseType);
+                    var heritageClauses = !ts.length(baseTypes) ? undefined : [ts.createHeritageClause(90, ts.mapDefined(baseTypes, function (b) { return trySerializeAsTypeReference(b); }))];
+                    addResult(ts.createInterfaceDeclaration(undefined, undefined, getInternalSymbolName(symbol, symbolName), typeParamDecls, heritageClauses, __spreadArrays(indexSignatures, constructSignatures, callSignatures, members)), modifierFlags);
+                }
+                function getNamespaceMembersForSerialization(symbol) {
+                    return !symbol.exports ? [] : ts.filter(ts.arrayFrom(symbol.exports.values()), isNamespaceMember);
+                }
+                function isTypeOnlyNamespace(symbol) {
+                    return ts.every(getNamespaceMembersForSerialization(symbol), function (m) { return !(resolveSymbol(m).flags & 111551); });
+                }
+                function serializeModule(symbol, symbolName, modifierFlags) {
+                    var members = getNamespaceMembersForSerialization(symbol);
+                    var locationMap = ts.arrayToMultiMap(members, function (m) { return m.parent && m.parent === symbol ? "real" : "merged"; });
+                    var realMembers = locationMap.get("real") || ts.emptyArray;
+                    var mergedMembers = locationMap.get("merged") || ts.emptyArray;
+                    if (ts.length(realMembers)) {
+                        var localName = getInternalSymbolName(symbol, symbolName);
+                        serializeAsNamespaceDeclaration(realMembers, localName, modifierFlags, !!(symbol.flags & (16 | 67108864)));
+                    }
+                    if (ts.length(mergedMembers)) {
+                        var containingFile_1 = ts.getSourceFileOfNode(context.enclosingDeclaration);
+                        var localName = getInternalSymbolName(symbol, symbolName);
+                        var nsBody = ts.createModuleBlock([ts.createExportDeclaration(undefined, undefined, ts.createNamedExports(ts.mapDefined(ts.filter(mergedMembers, function (n) { return n.escapedName !== "export="; }), function (s) {
+                                var _a, _b;
+                                var name = ts.unescapeLeadingUnderscores(s.escapedName);
+                                var localName = getInternalSymbolName(s, name);
+                                var aliasDecl = s.declarations && getDeclarationOfAliasSymbol(s);
+                                if (containingFile_1 && (aliasDecl ? containingFile_1 !== ts.getSourceFileOfNode(aliasDecl) : !ts.some(s.declarations, function (d) { return ts.getSourceFileOfNode(d) === containingFile_1; }))) {
+                                    (_b = (_a = context.tracker) === null || _a === void 0 ? void 0 : _a.reportNonlocalAugmentation) === null || _b === void 0 ? void 0 : _b.call(_a, containingFile_1, symbol, s);
+                                    return undefined;
+                                }
+                                var target = aliasDecl && getTargetOfAliasDeclaration(aliasDecl, true);
+                                includePrivateSymbol(target || s);
+                                var targetName = target ? getInternalSymbolName(target, ts.unescapeLeadingUnderscores(target.escapedName)) : localName;
+                                return ts.createExportSpecifier(name === targetName ? undefined : targetName, name);
+                            })))]);
+                        addResult(ts.createModuleDeclaration(undefined, undefined, ts.createIdentifier(localName), nsBody, 16), 0);
+                    }
+                }
+                function serializeEnum(symbol, symbolName, modifierFlags) {
+                    addResult(ts.createEnumDeclaration(undefined, ts.createModifiersFromModifierFlags(isConstEnumSymbol(symbol) ? 2048 : 0), getInternalSymbolName(symbol, symbolName), ts.map(ts.filter(getPropertiesOfType(getTypeOfSymbol(symbol)), function (p) { return !!(p.flags & 8); }), function (p) {
+                        var initializedValue = p.declarations && p.declarations[0] && ts.isEnumMember(p.declarations[0]) && getConstantValue(p.declarations[0]);
+                        return ts.createEnumMember(ts.unescapeLeadingUnderscores(p.escapedName), initializedValue === undefined ? undefined : ts.createLiteral(initializedValue));
+                    })), modifierFlags);
+                }
+                function serializeVariableOrProperty(symbol, symbolName, isPrivate, needsPostExportDefault, propertyAsAlias, modifierFlags) {
+                    if (propertyAsAlias) {
+                        serializeMaybeAliasAssignment(symbol);
+                    }
+                    else {
+                        var type = getTypeOfSymbol(symbol);
+                        var localName = getInternalSymbolName(symbol, symbolName);
+                        if (!(symbol.flags & 16) && isTypeRepresentableAsFunctionNamespaceMerge(type, symbol)) {
+                            serializeAsFunctionNamespaceMerge(type, symbol, localName, modifierFlags);
+                        }
+                        else {
+                            var flags = !(symbol.flags & 2) ? undefined
+                                : isConstVariable(symbol) ? 2
+                                    : 1;
+                            var name = (needsPostExportDefault || !(symbol.flags & 4)) ? localName : getUnusedName(localName, symbol);
+                            var textRange = symbol.declarations && ts.find(symbol.declarations, function (d) { return ts.isVariableDeclaration(d); });
+                            if (textRange && ts.isVariableDeclarationList(textRange.parent) && textRange.parent.declarations.length === 1) {
+                                textRange = textRange.parent.parent;
+                            }
+                            var statement = ts.setTextRange(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                                ts.createVariableDeclaration(name, serializeTypeForDeclaration(context, type, symbol, enclosingDeclaration, includePrivateSymbol, bundled))
+                            ], flags)), textRange);
+                            addResult(statement, name !== localName ? modifierFlags & ~1 : modifierFlags);
+                            if (name !== localName && !isPrivate) {
+                                addResult(ts.createExportDeclaration(undefined, undefined, ts.createNamedExports([ts.createExportSpecifier(name, localName)])), 0);
+                            }
+                        }
+                    }
+                }
+                function serializeAsFunctionNamespaceMerge(type, symbol, localName, modifierFlags) {
+                    var signatures = getSignaturesOfType(type, 0);
+                    for (var _i = 0, signatures_2 = signatures; _i < signatures_2.length; _i++) {
+                        var sig = signatures_2[_i];
+                        var decl = signatureToSignatureDeclarationHelper(sig, 244, context, includePrivateSymbol, bundled);
+                        decl.name = ts.createIdentifier(localName);
+                        addResult(ts.setTextRange(decl, sig.declaration && ts.isVariableDeclaration(sig.declaration.parent) && sig.declaration.parent.parent || sig.declaration), modifierFlags);
+                    }
+                    if (!(symbol.flags & (512 | 1024) && !!symbol.exports && !!symbol.exports.size)) {
+                        var props = ts.filter(getPropertiesOfType(type), isNamespaceMember);
+                        serializeAsNamespaceDeclaration(props, localName, modifierFlags, true);
+                    }
+                }
+                function serializeAsNamespaceDeclaration(props, localName, modifierFlags, suppressNewPrivateContext) {
+                    if (ts.length(props)) {
+                        var localVsRemoteMap = ts.arrayToMultiMap(props, function (p) {
+                            return !ts.length(p.declarations) || ts.some(p.declarations, function (d) {
+                                return ts.getSourceFileOfNode(d) === ts.getSourceFileOfNode(context.enclosingDeclaration);
+                            }) ? "local" : "remote";
+                        });
+                        var localProps = localVsRemoteMap.get("local") || ts.emptyArray;
+                        var fakespace = ts.createModuleDeclaration(undefined, undefined, ts.createIdentifier(localName), ts.createModuleBlock([]), 16);
+                        fakespace.flags ^= 8;
+                        fakespace.parent = enclosingDeclaration;
+                        fakespace.locals = ts.createSymbolTable(props);
+                        fakespace.symbol = props[0].parent;
+                        var oldResults = results;
+                        results = [];
+                        var oldAddingDeclare = addingDeclare;
+                        addingDeclare = false;
+                        var subcontext = __assign(__assign({}, context), { enclosingDeclaration: fakespace });
+                        var oldContext = context;
+                        context = subcontext;
+                        visitSymbolTable(ts.createSymbolTable(localProps), suppressNewPrivateContext, true);
+                        context = oldContext;
+                        addingDeclare = oldAddingDeclare;
+                        var declarations = results;
+                        results = oldResults;
+                        fakespace.flags ^= 8;
+                        fakespace.parent = undefined;
+                        fakespace.locals = undefined;
+                        fakespace.symbol = undefined;
+                        fakespace.body = ts.createModuleBlock(declarations);
+                        addResult(fakespace, modifierFlags);
+                    }
+                }
+                function isNamespaceMember(p) {
+                    return !(p.flags & 4194304 || p.escapedName === "prototype" || p.valueDeclaration && ts.isClassLike(p.valueDeclaration.parent));
+                }
+                function serializeAsClass(symbol, localName, modifierFlags) {
+                    var localParams = getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol);
+                    var typeParamDecls = ts.map(localParams, function (p) { return typeParameterToDeclaration(p, context); });
+                    var classType = getDeclaredTypeOfClassOrInterface(symbol);
+                    var baseTypes = getBaseTypes(classType);
+                    var implementsTypes = getImplementsTypes(classType);
+                    var staticType = getTypeOfSymbol(symbol);
+                    var staticBaseType = getBaseConstructorTypeOfClass(staticType);
+                    var heritageClauses = __spreadArrays(!ts.length(baseTypes) ? [] : [ts.createHeritageClause(90, ts.map(baseTypes, function (b) { return serializeBaseType(b, staticBaseType, localName); }))], !ts.length(implementsTypes) ? [] : [ts.createHeritageClause(113, ts.map(implementsTypes, function (b) { return serializeBaseType(b, staticBaseType, localName); }))]);
+                    var symbolProps = getNonInterhitedProperties(classType, baseTypes, getPropertiesOfType(classType));
+                    var publicSymbolProps = ts.filter(symbolProps, function (s) {
+                        var valueDecl = s.valueDeclaration;
+                        return valueDecl && !(ts.isNamedDeclaration(valueDecl) && ts.isPrivateIdentifier(valueDecl.name));
+                    });
+                    var hasPrivateIdentifier = ts.some(symbolProps, function (s) {
+                        var valueDecl = s.valueDeclaration;
+                        return valueDecl && ts.isNamedDeclaration(valueDecl) && ts.isPrivateIdentifier(valueDecl.name);
+                    });
+                    var privateProperties = hasPrivateIdentifier ?
+                        [ts.createProperty(undefined, undefined, ts.createPrivateIdentifier("#private"), undefined, undefined, undefined)] :
+                        ts.emptyArray;
+                    var publicProperties = ts.flatMap(publicSymbolProps, function (p) { return serializePropertySymbolForClass(p, false, baseTypes[0]); });
+                    var staticMembers = ts.flatMap(ts.filter(getPropertiesOfType(staticType), function (p) { return !(p.flags & 4194304) && p.escapedName !== "prototype" && !isNamespaceMember(p); }), function (p) { return serializePropertySymbolForClass(p, true, staticBaseType); });
+                    var constructors = serializeSignatures(1, staticType, baseTypes[0], 162);
+                    for (var _i = 0, constructors_1 = constructors; _i < constructors_1.length; _i++) {
+                        var c = constructors_1[_i];
+                        c.type = undefined;
+                        c.typeParameters = undefined;
+                    }
+                    var indexSignatures = serializeIndexSignatures(classType, baseTypes[0]);
+                    addResult(ts.setTextRange(ts.createClassDeclaration(undefined, undefined, localName, typeParamDecls, heritageClauses, __spreadArrays(indexSignatures, staticMembers, constructors, publicProperties, privateProperties)), symbol.declarations && ts.filter(symbol.declarations, function (d) { return ts.isClassDeclaration(d) || ts.isClassExpression(d); })[0]), modifierFlags);
+                }
+                function serializeAsAlias(symbol, localName, modifierFlags) {
+                    var node = getDeclarationOfAliasSymbol(symbol);
+                    if (!node)
+                        return ts.Debug.fail();
+                    var target = getMergedSymbol(getTargetOfAliasDeclaration(node, true));
+                    if (!target) {
+                        return;
+                    }
+                    var verbatimTargetName = ts.unescapeLeadingUnderscores(target.escapedName);
+                    if (verbatimTargetName === "export=" && (compilerOptions.esModuleInterop || compilerOptions.allowSyntheticDefaultImports)) {
+                        verbatimTargetName = "default";
+                    }
+                    var targetName = getInternalSymbolName(target, verbatimTargetName);
+                    includePrivateSymbol(target);
+                    switch (node.kind) {
+                        case 253:
+                            var isLocalImport = !(target.flags & 512);
+                            addResult(ts.createImportEqualsDeclaration(undefined, undefined, ts.createIdentifier(localName), isLocalImport
+                                ? symbolToName(target, context, 67108863, false)
+                                : ts.createExternalModuleReference(ts.createLiteral(getSpecifierForModuleSymbol(symbol, context)))), isLocalImport ? modifierFlags : 0);
+                            break;
+                        case 252:
+                            addResult(ts.createNamespaceExportDeclaration(ts.idText(node.name)), 0);
+                            break;
+                        case 255:
+                            addResult(ts.createImportDeclaration(undefined, undefined, ts.createImportClause(ts.createIdentifier(localName), undefined), ts.createLiteral(getSpecifierForModuleSymbol(target.parent || target, context))), 0);
+                            break;
+                        case 256:
+                            addResult(ts.createImportDeclaration(undefined, undefined, ts.createImportClause(undefined, ts.createNamespaceImport(ts.createIdentifier(localName))), ts.createLiteral(getSpecifierForModuleSymbol(target, context))), 0);
+                            break;
+                        case 262:
+                            addResult(ts.createExportDeclaration(undefined, undefined, ts.createNamespaceExport(ts.createIdentifier(localName)), ts.createLiteral(getSpecifierForModuleSymbol(target, context))), 0);
+                            break;
+                        case 258:
+                            addResult(ts.createImportDeclaration(undefined, undefined, ts.createImportClause(undefined, ts.createNamedImports([
+                                ts.createImportSpecifier(localName !== verbatimTargetName ? ts.createIdentifier(verbatimTargetName) : undefined, ts.createIdentifier(localName))
+                            ])), ts.createLiteral(getSpecifierForModuleSymbol(target.parent || target, context))), 0);
+                            break;
+                        case 263:
+                            var specifier = node.parent.parent.moduleSpecifier;
+                            serializeExportSpecifier(ts.unescapeLeadingUnderscores(symbol.escapedName), specifier ? verbatimTargetName : targetName, specifier && ts.isStringLiteralLike(specifier) ? ts.createLiteral(specifier.text) : undefined);
+                            break;
+                        case 259:
+                            serializeMaybeAliasAssignment(symbol);
+                            break;
+                        case 209:
+                        case 194:
+                            if (symbol.escapedName === "default" || symbol.escapedName === "export=") {
+                                serializeMaybeAliasAssignment(symbol);
+                            }
+                            else {
+                                serializeExportSpecifier(localName, targetName);
+                            }
+                            break;
+                        default:
+                            return ts.Debug.failBadSyntaxKind(node, "Unhandled alias declaration kind in symbol serializer!");
+                    }
+                }
+                function serializeExportSpecifier(localName, targetName, specifier) {
+                    addResult(ts.createExportDeclaration(undefined, undefined, ts.createNamedExports([ts.createExportSpecifier(localName !== targetName ? targetName : undefined, localName)]), specifier), 0);
+                }
+                function serializeMaybeAliasAssignment(symbol) {
+                    if (symbol.flags & 4194304) {
+                        return;
+                    }
+                    var name = ts.unescapeLeadingUnderscores(symbol.escapedName);
+                    var isExportEquals = name === "export=";
+                    var isDefault = name === "default";
+                    var isExportAssignment = isExportEquals || isDefault;
+                    var aliasDecl = symbol.declarations && getDeclarationOfAliasSymbol(symbol);
+                    var target = aliasDecl && getTargetOfAliasDeclaration(aliasDecl, true);
+                    if (target && ts.length(target.declarations) && ts.some(target.declarations, function (d) { return ts.getSourceFileOfNode(d) === ts.getSourceFileOfNode(enclosingDeclaration); })) {
+                        var expr = isExportAssignment ? ts.getExportAssignmentExpression(aliasDecl) : ts.getPropertyAssignmentAliasLikeExpression(aliasDecl);
+                        var first_1 = ts.isEntityNameExpression(expr) ? getFirstNonModuleExportsIdentifier(expr) : undefined;
+                        var referenced = first_1 && resolveEntityName(first_1, 67108863, true, true, enclosingDeclaration);
+                        if (referenced || target) {
+                            includePrivateSymbol(referenced || target);
+                        }
+                        var oldTrack = context.tracker.trackSymbol;
+                        context.tracker.trackSymbol = ts.noop;
+                        if (isExportAssignment) {
+                            results.push(ts.createExportAssignment(undefined, undefined, isExportEquals, symbolToExpression(target, context, 67108863)));
+                        }
+                        else {
+                            if (first_1 === expr) {
+                                serializeExportSpecifier(name, ts.idText(first_1));
+                            }
+                            else if (ts.isClassExpression(expr)) {
+                                serializeExportSpecifier(name, getInternalSymbolName(target, ts.symbolName(target)));
+                            }
+                            else {
+                                var varName = getUnusedName(name, symbol);
+                                addResult(ts.createImportEqualsDeclaration(undefined, undefined, ts.createIdentifier(varName), symbolToName(target, context, 67108863, false)), 0);
+                                serializeExportSpecifier(name, varName);
+                            }
+                        }
+                        context.tracker.trackSymbol = oldTrack;
+                    }
+                    else {
+                        var varName = getUnusedName(name, symbol);
+                        var typeToSerialize = getWidenedType(getTypeOfSymbol(getMergedSymbol(symbol)));
+                        if (isTypeRepresentableAsFunctionNamespaceMerge(typeToSerialize, symbol)) {
+                            serializeAsFunctionNamespaceMerge(typeToSerialize, symbol, varName, isExportAssignment ? 0 : 1);
+                        }
+                        else {
+                            var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                                ts.createVariableDeclaration(varName, serializeTypeForDeclaration(context, typeToSerialize, symbol, enclosingDeclaration, includePrivateSymbol, bundled))
+                            ], 2));
+                            addResult(statement, name === varName ? 1 : 0);
+                        }
+                        if (isExportAssignment) {
+                            results.push(ts.createExportAssignment(undefined, undefined, isExportEquals, ts.createIdentifier(varName)));
+                        }
+                        else if (name !== varName) {
+                            serializeExportSpecifier(name, varName);
+                        }
+                    }
+                }
+                function isTypeRepresentableAsFunctionNamespaceMerge(typeToSerialize, hostSymbol) {
+                    var ctxSrc = ts.getSourceFileOfNode(context.enclosingDeclaration);
+                    return ts.getObjectFlags(typeToSerialize) & (16 | 32) &&
+                        !getIndexInfoOfType(typeToSerialize, 0) &&
+                        !getIndexInfoOfType(typeToSerialize, 1) &&
+                        !!(ts.length(getPropertiesOfType(typeToSerialize)) || ts.length(getSignaturesOfType(typeToSerialize, 0))) &&
+                        !ts.length(getSignaturesOfType(typeToSerialize, 1)) &&
+                        !getDeclarationWithTypeAnnotation(hostSymbol, enclosingDeclaration) &&
+                        !(typeToSerialize.symbol && ts.some(typeToSerialize.symbol.declarations, function (d) { return ts.getSourceFileOfNode(d) !== ctxSrc; })) &&
+                        !ts.some(getPropertiesOfType(typeToSerialize), function (p) { return isLateBoundName(p.escapedName); }) &&
+                        !ts.some(getPropertiesOfType(typeToSerialize), function (p) { return ts.some(p.declarations, function (d) { return ts.getSourceFileOfNode(d) !== ctxSrc; }); }) &&
+                        ts.every(getPropertiesOfType(typeToSerialize), function (p) { return ts.isIdentifierText(ts.symbolName(p), languageVersion) && !ts.isStringAKeyword(ts.symbolName(p)); });
+                }
+                function makeSerializePropertySymbol(createProperty, methodKind, useAccessors) {
+                    return function serializePropertySymbol(p, isStatic, baseType) {
+                        var modifierFlags = ts.getDeclarationModifierFlagsFromSymbol(p);
+                        var isPrivate = !!(modifierFlags & 8);
+                        if (isStatic && (p.flags & (788968 | 1920 | 2097152))) {
+                            return [];
+                        }
+                        if (p.flags & 4194304 ||
+                            (baseType && getPropertyOfType(baseType, p.escapedName)
+                                && isReadonlySymbol(getPropertyOfType(baseType, p.escapedName)) === isReadonlySymbol(p)
+                                && (p.flags & 16777216) === (getPropertyOfType(baseType, p.escapedName).flags & 16777216)
+                                && isTypeIdenticalTo(getTypeOfSymbol(p), getTypeOfPropertyOfType(baseType, p.escapedName)))) {
+                            return [];
+                        }
+                        var flag = (modifierFlags & ~256) | (isStatic ? 32 : 0);
+                        var name = getPropertyNameNodeForSymbol(p, context);
+                        var firstPropertyLikeDecl = ts.find(p.declarations, ts.or(ts.isPropertyDeclaration, ts.isAccessor, ts.isVariableDeclaration, ts.isPropertySignature, ts.isBinaryExpression, ts.isPropertyAccessExpression));
+                        if (p.flags & 98304 && useAccessors) {
+                            var result = [];
+                            if (p.flags & 65536) {
+                                result.push(ts.setTextRange(ts.createSetAccessor(undefined, ts.createModifiersFromModifierFlags(flag), name, [ts.createParameter(undefined, undefined, undefined, "arg", undefined, isPrivate ? undefined : serializeTypeForDeclaration(context, getTypeOfSymbol(p), p, enclosingDeclaration, includePrivateSymbol, bundled))], undefined), ts.find(p.declarations, ts.isSetAccessor) || firstPropertyLikeDecl));
+                            }
+                            if (p.flags & 32768) {
+                                var isPrivate_1 = modifierFlags & 8;
+                                result.push(ts.setTextRange(ts.createGetAccessor(undefined, ts.createModifiersFromModifierFlags(flag), name, [], isPrivate_1 ? undefined : serializeTypeForDeclaration(context, getTypeOfSymbol(p), p, enclosingDeclaration, includePrivateSymbol, bundled), undefined), ts.find(p.declarations, ts.isGetAccessor) || firstPropertyLikeDecl));
+                            }
+                            return result;
+                        }
+                        else if (p.flags & (4 | 3)) {
+                            return ts.setTextRange(createProperty(undefined, ts.createModifiersFromModifierFlags((isReadonlySymbol(p) ? 64 : 0) | flag), name, p.flags & 16777216 ? ts.createToken(57) : undefined, isPrivate ? undefined : serializeTypeForDeclaration(context, getTypeOfSymbol(p), p, enclosingDeclaration, includePrivateSymbol, bundled), undefined), ts.find(p.declarations, ts.or(ts.isPropertyDeclaration, ts.isVariableDeclaration)) || firstPropertyLikeDecl);
+                        }
+                        if (p.flags & (8192 | 16)) {
+                            var type = getTypeOfSymbol(p);
+                            var signatures = getSignaturesOfType(type, 0);
+                            if (flag & 8) {
+                                return ts.setTextRange(createProperty(undefined, ts.createModifiersFromModifierFlags((isReadonlySymbol(p) ? 64 : 0) | flag), name, p.flags & 16777216 ? ts.createToken(57) : undefined, undefined, undefined), ts.find(p.declarations, ts.isFunctionLikeDeclaration) || signatures[0] && signatures[0].declaration || p.declarations[0]);
+                            }
+                            var results_1 = [];
+                            for (var _i = 0, signatures_3 = signatures; _i < signatures_3.length; _i++) {
+                                var sig = signatures_3[_i];
+                                var decl = signatureToSignatureDeclarationHelper(sig, methodKind, context);
+                                decl.name = name;
+                                if (flag) {
+                                    decl.modifiers = ts.createNodeArray(ts.createModifiersFromModifierFlags(flag));
+                                }
+                                if (p.flags & 16777216) {
+                                    decl.questionToken = ts.createToken(57);
+                                }
+                                results_1.push(ts.setTextRange(decl, sig.declaration));
+                            }
+                            return results_1;
+                        }
+                        return ts.Debug.fail("Unhandled class member kind! " + (p.__debugFlags || p.flags));
+                    };
+                }
+                function serializePropertySymbolForInterface(p, baseType) {
+                    return serializePropertySymbolForInterfaceWorker(p, false, baseType);
+                }
+                function serializeSignatures(kind, input, baseType, outputKind) {
+                    var signatures = getSignaturesOfType(input, kind);
+                    if (kind === 1) {
+                        if (!baseType && ts.every(signatures, function (s) { return ts.length(s.parameters) === 0; })) {
+                            return [];
+                        }
+                        if (baseType) {
+                            var baseSigs = getSignaturesOfType(baseType, 1);
+                            if (!ts.length(baseSigs) && ts.every(signatures, function (s) { return ts.length(s.parameters) === 0; })) {
+                                return [];
+                            }
+                            if (baseSigs.length === signatures.length) {
+                                var failed = false;
+                                for (var i = 0; i < baseSigs.length; i++) {
+                                    if (!compareSignaturesIdentical(signatures[i], baseSigs[i], false, false, true, compareTypesIdentical)) {
+                                        failed = true;
+                                        break;
+                                    }
+                                }
+                                if (!failed) {
+                                    return [];
+                                }
+                            }
+                        }
+                        var privateProtected = 0;
+                        for (var _i = 0, signatures_4 = signatures; _i < signatures_4.length; _i++) {
+                            var s = signatures_4[_i];
+                            if (s.declaration) {
+                                privateProtected |= ts.getSelectedModifierFlags(s.declaration, 8 | 16);
+                            }
+                        }
+                        if (privateProtected) {
+                            return [ts.setTextRange(ts.createConstructor(undefined, ts.createModifiersFromModifierFlags(privateProtected), [], undefined), signatures[0].declaration)];
+                        }
+                    }
+                    var results = [];
+                    for (var _a = 0, signatures_5 = signatures; _a < signatures_5.length; _a++) {
+                        var sig = signatures_5[_a];
+                        var decl = signatureToSignatureDeclarationHelper(sig, outputKind, context);
+                        results.push(ts.setTextRange(decl, sig.declaration));
+                    }
+                    return results;
+                }
+                function serializeIndexSignatures(input, baseType) {
+                    var results = [];
+                    for (var _i = 0, _a = [0, 1]; _i < _a.length; _i++) {
+                        var type = _a[_i];
+                        var info = getIndexInfoOfType(input, type);
+                        if (info) {
+                            if (baseType) {
+                                var baseInfo = getIndexInfoOfType(baseType, type);
+                                if (baseInfo) {
+                                    if (isTypeIdenticalTo(info.type, baseInfo.type)) {
+                                        continue;
+                                    }
+                                }
+                            }
+                            results.push(indexInfoToIndexSignatureDeclarationHelper(info, type, context));
+                        }
+                    }
+                    return results;
+                }
+                function serializeBaseType(t, staticType, rootName) {
+                    var ref = trySerializeAsTypeReference(t);
+                    if (ref) {
+                        return ref;
+                    }
+                    var tempName = getUnusedName(rootName + "_base");
+                    var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                        ts.createVariableDeclaration(tempName, typeToTypeNodeHelper(staticType, context))
+                    ], 2));
+                    addResult(statement, 0);
+                    return ts.createExpressionWithTypeArguments(undefined, ts.createIdentifier(tempName));
+                }
+                function trySerializeAsTypeReference(t) {
+                    var typeArgs;
+                    var reference;
+                    if (t.target && getAccessibleSymbolChain(t.target.symbol, enclosingDeclaration, 111551, false)) {
+                        typeArgs = ts.map(getTypeArguments(t), function (t) { return typeToTypeNodeHelper(t, context); });
+                        reference = symbolToExpression(t.target.symbol, context, 788968);
+                    }
+                    else if (t.symbol && getAccessibleSymbolChain(t.symbol, enclosingDeclaration, 111551, false)) {
+                        reference = symbolToExpression(t.symbol, context, 788968);
+                    }
+                    if (reference) {
+                        return ts.createExpressionWithTypeArguments(typeArgs, reference);
+                    }
+                }
+                function getUnusedName(input, symbol) {
+                    if (symbol) {
+                        if (context.remappedSymbolNames.has("" + getSymbolId(symbol))) {
+                            return context.remappedSymbolNames.get("" + getSymbolId(symbol));
+                        }
+                    }
+                    if (symbol) {
+                        input = getNameCandidateWorker(symbol, input);
+                    }
+                    var i = 0;
+                    var original = input;
+                    while (context.usedSymbolNames.has(input)) {
+                        i++;
+                        input = original + "_" + i;
+                    }
+                    context.usedSymbolNames.set(input, true);
+                    if (symbol) {
+                        context.remappedSymbolNames.set("" + getSymbolId(symbol), input);
+                    }
+                    return input;
+                }
+                function getNameCandidateWorker(symbol, localName) {
+                    if (localName === "default" || localName === "__class" || localName === "__function") {
+                        var flags = context.flags;
+                        context.flags |= 16777216;
+                        var nameCandidate = getNameOfSymbolAsWritten(symbol, context);
+                        context.flags = flags;
+                        localName = nameCandidate.length > 0 && ts.isSingleOrDoubleQuote(nameCandidate.charCodeAt(0)) ? ts.stripQuotes(nameCandidate) : nameCandidate;
+                    }
+                    if (localName === "default") {
+                        localName = "_default";
+                    }
+                    else if (localName === "export=") {
+                        localName = "_exports";
+                    }
+                    localName = ts.isIdentifierText(localName, languageVersion) && !ts.isStringANonContextualKeyword(localName) ? localName : "_" + localName.replace(/[^a-zA-Z0-9]/g, "_");
+                    return localName;
+                }
+                function getInternalSymbolName(symbol, localName) {
+                    if (context.remappedSymbolNames.has("" + getSymbolId(symbol))) {
+                        return context.remappedSymbolNames.get("" + getSymbolId(symbol));
+                    }
+                    localName = getNameCandidateWorker(symbol, localName);
+                    context.remappedSymbolNames.set("" + getSymbolId(symbol), localName);
+                    return localName;
+                }
+            }
+        }
+        function typePredicateToString(typePredicate, enclosingDeclaration, flags, writer) {
+            if (flags === void 0) { flags = 16384; }
+            return writer ? typePredicateToStringWorker(writer).getText() : ts.usingSingleLineStringWriter(typePredicateToStringWorker);
+            function typePredicateToStringWorker(writer) {
+                var predicate = ts.createTypePredicateNodeWithModifier(typePredicate.kind === 2 || typePredicate.kind === 3 ? ts.createToken(124) : undefined, typePredicate.kind === 1 || typePredicate.kind === 3 ? ts.createIdentifier(typePredicate.parameterName) : ts.createThisTypeNode(), typePredicate.type && nodeBuilder.typeToTypeNode(typePredicate.type, enclosingDeclaration, toNodeBuilderFlags(flags) | 70221824 | 512));
+                var printer = ts.createPrinter({ removeComments: true });
+                var sourceFile = enclosingDeclaration && ts.getSourceFileOfNode(enclosingDeclaration);
+                printer.writeNode(4, predicate, sourceFile, writer);
+                return writer;
+            }
+        }
+        function formatUnionTypes(types) {
+            var result = [];
+            var flags = 0;
+            for (var i = 0; i < types.length; i++) {
+                var t = types[i];
+                flags |= t.flags;
+                if (!(t.flags & 98304)) {
+                    if (t.flags & (512 | 1024)) {
+                        var baseType = t.flags & 512 ? booleanType : getBaseTypeOfEnumLiteralType(t);
+                        if (baseType.flags & 1048576) {
+                            var count = baseType.types.length;
+                            if (i + count <= types.length && getRegularTypeOfLiteralType(types[i + count - 1]) === getRegularTypeOfLiteralType(baseType.types[count - 1])) {
+                                result.push(baseType);
+                                i += count - 1;
+                                continue;
+                            }
+                        }
+                    }
+                    result.push(t);
+                }
+            }
+            if (flags & 65536)
+                result.push(nullType);
+            if (flags & 32768)
+                result.push(undefinedType);
+            return result || types;
+        }
+        function visibilityToString(flags) {
+            if (flags === 8) {
+                return "private";
+            }
+            if (flags === 16) {
+                return "protected";
+            }
+            return "public";
+        }
+        function getTypeAliasForTypeLiteral(type) {
+            if (type.symbol && type.symbol.flags & 2048) {
+                var node = ts.findAncestor(type.symbol.declarations[0].parent, function (n) { return n.kind !== 182; });
+                if (node.kind === 247) {
+                    return getSymbolOfNode(node);
+                }
+            }
+            return undefined;
+        }
+        function isTopLevelInExternalModuleAugmentation(node) {
+            return node && node.parent &&
+                node.parent.kind === 250 &&
+                ts.isExternalModuleAugmentation(node.parent.parent);
+        }
+        function isDefaultBindingContext(location) {
+            return location.kind === 290 || ts.isAmbientModule(location);
+        }
+        function getNameOfSymbolFromNameType(symbol, context) {
+            var nameType = getSymbolLinks(symbol).nameType;
+            if (nameType) {
+                if (nameType.flags & 384) {
+                    var name = "" + nameType.value;
+                    if (!ts.isIdentifierText(name, compilerOptions.target) && !isNumericLiteralName(name)) {
+                        return "\"" + ts.escapeString(name, 34) + "\"";
+                    }
+                    if (isNumericLiteralName(name) && ts.startsWith(name, "-")) {
+                        return "[" + name + "]";
+                    }
+                    return name;
+                }
+                if (nameType.flags & 8192) {
+                    return "[" + getNameOfSymbolAsWritten(nameType.symbol, context) + "]";
+                }
+            }
+        }
+        function getNameOfSymbolAsWritten(symbol, context) {
+            if (context && symbol.escapedName === "default" && !(context.flags & 16384) &&
+                (!(context.flags & 16777216) ||
+                    !symbol.declarations ||
+                    (context.enclosingDeclaration && ts.findAncestor(symbol.declarations[0], isDefaultBindingContext) !== ts.findAncestor(context.enclosingDeclaration, isDefaultBindingContext)))) {
+                return "default";
+            }
+            if (symbol.declarations && symbol.declarations.length) {
+                var declaration = ts.firstDefined(symbol.declarations, function (d) { return ts.getNameOfDeclaration(d) ? d : undefined; });
+                var name_2 = declaration && ts.getNameOfDeclaration(declaration);
+                if (declaration && name_2) {
+                    if (ts.isCallExpression(declaration) && ts.isBindableObjectDefinePropertyCall(declaration)) {
+                        return ts.symbolName(symbol);
+                    }
+                    if (ts.isComputedPropertyName(name_2) && !(ts.getCheckFlags(symbol) & 4096)) {
+                        var nameType = getSymbolLinks(symbol).nameType;
+                        if (nameType && nameType.flags & 384) {
+                            var result = getNameOfSymbolFromNameType(symbol, context);
+                            if (result !== undefined) {
+                                return result;
+                            }
+                        }
+                    }
+                    return ts.declarationNameToString(name_2);
+                }
+                if (!declaration) {
+                    declaration = symbol.declarations[0];
+                }
+                if (declaration.parent && declaration.parent.kind === 242) {
+                    return ts.declarationNameToString(declaration.parent.name);
+                }
+                switch (declaration.kind) {
+                    case 214:
+                    case 201:
+                    case 202:
+                        if (context && !context.encounteredError && !(context.flags & 131072)) {
+                            context.encounteredError = true;
+                        }
+                        return declaration.kind === 214 ? "(Anonymous class)" : "(Anonymous function)";
+                }
+            }
+            var name = getNameOfSymbolFromNameType(symbol, context);
+            return name !== undefined ? name : ts.symbolName(symbol);
+        }
+        function isDeclarationVisible(node) {
+            if (node) {
+                var links = getNodeLinks(node);
+                if (links.isVisible === undefined) {
+                    links.isVisible = !!determineIfDeclarationIsVisible();
+                }
+                return links.isVisible;
+            }
+            return false;
+            function determineIfDeclarationIsVisible() {
+                switch (node.kind) {
+                    case 315:
+                    case 322:
+                    case 316:
+                        return !!(node.parent && node.parent.parent && node.parent.parent.parent && ts.isSourceFile(node.parent.parent.parent));
+                    case 191:
+                        return isDeclarationVisible(node.parent.parent);
+                    case 242:
+                        if (ts.isBindingPattern(node.name) &&
+                            !node.name.elements.length) {
+                            return false;
+                        }
+                    case 249:
+                    case 245:
+                    case 246:
+                    case 247:
+                    case 244:
+                    case 248:
+                    case 253:
+                        if (ts.isExternalModuleAugmentation(node)) {
+                            return true;
+                        }
+                        var parent = getDeclarationContainer(node);
+                        if (!(ts.getCombinedModifierFlags(node) & 1) &&
+                            !(node.kind !== 253 && parent.kind !== 290 && parent.flags & 8388608)) {
+                            return isGlobalSourceFile(parent);
+                        }
+                        return isDeclarationVisible(parent);
+                    case 159:
+                    case 158:
+                    case 163:
+                    case 164:
+                    case 161:
+                    case 160:
+                        if (ts.hasModifier(node, 8 | 16)) {
+                            return false;
+                        }
+                    case 162:
+                    case 166:
+                    case 165:
+                    case 167:
+                    case 156:
+                    case 250:
+                    case 170:
+                    case 171:
+                    case 173:
+                    case 169:
+                    case 174:
+                    case 175:
+                    case 178:
+                    case 179:
+                    case 182:
+                        return isDeclarationVisible(node.parent);
+                    case 255:
+                    case 256:
+                    case 258:
+                        return false;
+                    case 155:
+                    case 290:
+                    case 252:
+                        return true;
+                    case 259:
+                        return false;
+                    default:
+                        return false;
+                }
+            }
+        }
+        function collectLinkedAliases(node, setVisibility) {
+            var exportSymbol;
+            if (node.parent && node.parent.kind === 259) {
+                exportSymbol = resolveName(node, node.escapedText, 111551 | 788968 | 1920 | 2097152, undefined, node, false);
+            }
+            else if (node.parent.kind === 263) {
+                exportSymbol = getTargetOfExportSpecifier(node.parent, 111551 | 788968 | 1920 | 2097152);
+            }
+            var result;
+            var visited;
+            if (exportSymbol) {
+                visited = ts.createMap();
+                visited.set("" + getSymbolId(exportSymbol), true);
+                buildVisibleNodeList(exportSymbol.declarations);
+            }
+            return result;
+            function buildVisibleNodeList(declarations) {
+                ts.forEach(declarations, function (declaration) {
+                    var resultNode = getAnyImportSyntax(declaration) || declaration;
+                    if (setVisibility) {
+                        getNodeLinks(declaration).isVisible = true;
+                    }
+                    else {
+                        result = result || [];
+                        ts.pushIfUnique(result, resultNode);
+                    }
+                    if (ts.isInternalModuleImportEqualsDeclaration(declaration)) {
+                        var internalModuleReference = declaration.moduleReference;
+                        var firstIdentifier = ts.getFirstIdentifier(internalModuleReference);
+                        var importSymbol = resolveName(declaration, firstIdentifier.escapedText, 111551 | 788968 | 1920, undefined, undefined, false);
+                        var id = importSymbol && "" + getSymbolId(importSymbol);
+                        if (importSymbol && !visited.has(id)) {
+                            visited.set(id, true);
+                            buildVisibleNodeList(importSymbol.declarations);
+                        }
+                    }
+                });
+            }
+        }
+        function pushTypeResolution(target, propertyName) {
+            var resolutionCycleStartIndex = findResolutionCycleStartIndex(target, propertyName);
+            if (resolutionCycleStartIndex >= 0) {
+                var length_3 = resolutionTargets.length;
+                for (var i = resolutionCycleStartIndex; i < length_3; i++) {
+                    resolutionResults[i] = false;
+                }
+                return false;
+            }
+            resolutionTargets.push(target);
+            resolutionResults.push(true);
+            resolutionPropertyNames.push(propertyName);
+            return true;
+        }
+        function findResolutionCycleStartIndex(target, propertyName) {
+            for (var i = resolutionTargets.length - 1; i >= 0; i--) {
+                if (hasType(resolutionTargets[i], resolutionPropertyNames[i])) {
+                    return -1;
+                }
+                if (resolutionTargets[i] === target && resolutionPropertyNames[i] === propertyName) {
+                    return i;
+                }
+            }
+            return -1;
+        }
+        function hasType(target, propertyName) {
+            switch (propertyName) {
+                case 0:
+                    return !!getSymbolLinks(target).type;
+                case 5:
+                    return !!(getNodeLinks(target).resolvedEnumType);
+                case 2:
+                    return !!getSymbolLinks(target).declaredType;
+                case 1:
+                    return !!target.resolvedBaseConstructorType;
+                case 3:
+                    return !!target.resolvedReturnType;
+                case 4:
+                    return !!target.immediateBaseConstraint;
+                case 6:
+                    return !!target.resolvedTypeArguments;
+            }
+            return ts.Debug.assertNever(propertyName);
+        }
+        function popTypeResolution() {
+            resolutionTargets.pop();
+            resolutionPropertyNames.pop();
+            return resolutionResults.pop();
+        }
+        function getDeclarationContainer(node) {
+            return ts.findAncestor(ts.getRootDeclaration(node), function (node) {
+                switch (node.kind) {
+                    case 242:
+                    case 243:
+                    case 258:
+                    case 257:
+                    case 256:
+                    case 255:
+                        return false;
+                    default:
+                        return true;
+                }
+            }).parent;
+        }
+        function getTypeOfPrototypeProperty(prototype) {
+            var classType = getDeclaredTypeOfSymbol(getParentOfSymbol(prototype));
+            return classType.typeParameters ? createTypeReference(classType, ts.map(classType.typeParameters, function (_) { return anyType; })) : classType;
+        }
+        function getTypeOfPropertyOfType(type, name) {
+            var prop = getPropertyOfType(type, name);
+            return prop ? getTypeOfSymbol(prop) : undefined;
+        }
+        function getTypeOfPropertyOrIndexSignature(type, name) {
+            return getTypeOfPropertyOfType(type, name) || isNumericLiteralName(name) && getIndexTypeOfType(type, 1) || getIndexTypeOfType(type, 0) || unknownType;
+        }
+        function isTypeAny(type) {
+            return type && (type.flags & 1) !== 0;
+        }
+        function getTypeForBindingElementParent(node) {
+            var symbol = getSymbolOfNode(node);
+            return symbol && getSymbolLinks(symbol).type || getTypeForVariableLikeDeclaration(node, false);
+        }
+        function getRestType(source, properties, symbol) {
+            source = filterType(source, function (t) { return !(t.flags & 98304); });
+            if (source.flags & 131072) {
+                return emptyObjectType;
+            }
+            if (source.flags & 1048576) {
+                return mapType(source, function (t) { return getRestType(t, properties, symbol); });
+            }
+            var omitKeyType = getUnionType(ts.map(properties, getLiteralTypeFromPropertyName));
+            if (isGenericObjectType(source) || isGenericIndexType(omitKeyType)) {
+                if (omitKeyType.flags & 131072) {
+                    return source;
+                }
+                var omitTypeAlias = getGlobalOmitSymbol();
+                if (!omitTypeAlias) {
+                    return errorType;
+                }
+                return getTypeAliasInstantiation(omitTypeAlias, [source, omitKeyType]);
+            }
+            var members = ts.createSymbolTable();
+            for (var _i = 0, _a = getPropertiesOfType(source); _i < _a.length; _i++) {
+                var prop = _a[_i];
+                if (!isTypeAssignableTo(getLiteralTypeFromProperty(prop, 8576), omitKeyType)
+                    && !(ts.getDeclarationModifierFlagsFromSymbol(prop) & (8 | 16))
+                    && isSpreadableProperty(prop)) {
+                    members.set(prop.escapedName, getSpreadSymbol(prop, false));
+                }
+            }
+            var stringIndexInfo = getIndexInfoOfType(source, 0);
+            var numberIndexInfo = getIndexInfoOfType(source, 1);
+            var result = createAnonymousType(symbol, members, ts.emptyArray, ts.emptyArray, stringIndexInfo, numberIndexInfo);
+            result.objectFlags |= 131072;
+            return result;
+        }
+        function getFlowTypeOfDestructuring(node, declaredType) {
+            var reference = getSyntheticElementAccess(node);
+            return reference ? getFlowTypeOfReference(reference, declaredType) : declaredType;
+        }
+        function getSyntheticElementAccess(node) {
+            var parentAccess = getParentElementAccess(node);
+            if (parentAccess && parentAccess.flowNode) {
+                var propName = getDestructuringPropertyName(node);
+                if (propName) {
+                    var result = ts.createNode(195, node.pos, node.end);
+                    result.parent = node;
+                    result.expression = parentAccess;
+                    var literal = ts.createNode(10, node.pos, node.end);
+                    literal.parent = result;
+                    literal.text = propName;
+                    result.argumentExpression = literal;
+                    result.flowNode = parentAccess.flowNode;
+                    return result;
+                }
+            }
+        }
+        function getParentElementAccess(node) {
+            var ancestor = node.parent.parent;
+            switch (ancestor.kind) {
+                case 191:
+                case 281:
+                    return getSyntheticElementAccess(ancestor);
+                case 192:
+                    return getSyntheticElementAccess(node.parent);
+                case 242:
+                    return ancestor.initializer;
+                case 209:
+                    return ancestor.right;
+            }
+        }
+        function getDestructuringPropertyName(node) {
+            var parent = node.parent;
+            if (node.kind === 191 && parent.kind === 189) {
+                return getLiteralPropertyNameText(node.propertyName || node.name);
+            }
+            if (node.kind === 281 || node.kind === 282) {
+                return getLiteralPropertyNameText(node.name);
+            }
+            return "" + parent.elements.indexOf(node);
+        }
+        function getLiteralPropertyNameText(name) {
+            var type = getLiteralTypeFromPropertyName(name);
+            return type.flags & (128 | 256) ? "" + type.value : undefined;
+        }
+        function getTypeForBindingElement(declaration) {
+            var pattern = declaration.parent;
+            var parentType = getTypeForBindingElementParent(pattern.parent);
+            if (!parentType || isTypeAny(parentType)) {
+                return parentType;
+            }
+            if (strictNullChecks && declaration.flags & 8388608 && ts.isParameterDeclaration(declaration)) {
+                parentType = getNonNullableType(parentType);
+            }
+            else if (strictNullChecks && pattern.parent.initializer && !(getTypeFacts(getTypeOfInitializer(pattern.parent.initializer)) & 65536)) {
+                parentType = getTypeWithFacts(parentType, 524288);
+            }
+            var type;
+            if (pattern.kind === 189) {
+                if (declaration.dotDotDotToken) {
+                    parentType = getReducedType(parentType);
+                    if (parentType.flags & 2 || !isValidSpreadType(parentType)) {
+                        error(declaration, ts.Diagnostics.Rest_types_may_only_be_created_from_object_types);
+                        return errorType;
+                    }
+                    var literalMembers = [];
+                    for (var _i = 0, _a = pattern.elements; _i < _a.length; _i++) {
+                        var element = _a[_i];
+                        if (!element.dotDotDotToken) {
+                            literalMembers.push(element.propertyName || element.name);
+                        }
+                    }
+                    type = getRestType(parentType, literalMembers, declaration.symbol);
+                }
+                else {
+                    var name = declaration.propertyName || declaration.name;
+                    var indexType = getLiteralTypeFromPropertyName(name);
+                    var declaredType = getConstraintForLocation(getIndexedAccessType(parentType, indexType, name), declaration.name);
+                    type = getFlowTypeOfDestructuring(declaration, declaredType);
+                }
+            }
+            else {
+                var elementType = checkIteratedTypeOrElementType(65, parentType, undefinedType, pattern);
+                var index_1 = pattern.elements.indexOf(declaration);
+                if (declaration.dotDotDotToken) {
+                    type = everyType(parentType, isTupleType) ?
+                        mapType(parentType, function (t) { return sliceTupleType(t, index_1); }) :
+                        createArrayType(elementType);
+                }
+                else if (isArrayLikeType(parentType)) {
+                    var indexType = getLiteralType(index_1);
+                    var accessFlags = hasDefaultValue(declaration) ? 8 : 0;
+                    var declaredType = getConstraintForLocation(getIndexedAccessTypeOrUndefined(parentType, indexType, declaration.name, accessFlags) || errorType, declaration.name);
+                    type = getFlowTypeOfDestructuring(declaration, declaredType);
+                }
+                else {
+                    type = elementType;
+                }
+            }
+            if (!declaration.initializer) {
+                return type;
+            }
+            if (ts.getEffectiveTypeAnnotationNode(ts.walkUpBindingElementsAndPatterns(declaration))) {
+                return strictNullChecks && !(getFalsyFlags(checkDeclarationInitializer(declaration)) & 32768) ?
+                    getTypeWithFacts(type, 524288) :
+                    type;
+            }
+            return widenTypeInferredFromInitializer(declaration, getUnionType([getTypeWithFacts(type, 524288), checkDeclarationInitializer(declaration)], 2));
+        }
+        function getTypeForDeclarationFromJSDocComment(declaration) {
+            var jsdocType = ts.getJSDocType(declaration);
+            if (jsdocType) {
+                return getTypeFromTypeNode(jsdocType);
+            }
+            return undefined;
+        }
+        function isNullOrUndefined(node) {
+            var expr = ts.skipParentheses(node);
+            return expr.kind === 100 || expr.kind === 75 && getResolvedSymbol(expr) === undefinedSymbol;
+        }
+        function isEmptyArrayLiteral(node) {
+            var expr = ts.skipParentheses(node);
+            return expr.kind === 192 && expr.elements.length === 0;
+        }
+        function addOptionality(type, optional) {
+            if (optional === void 0) { optional = true; }
+            return strictNullChecks && optional ? getOptionalType(type) : type;
+        }
+        function getTypeForVariableLikeDeclaration(declaration, includeOptionality) {
+            if (ts.isVariableDeclaration(declaration) && declaration.parent.parent.kind === 231) {
+                var indexType = getIndexType(getNonNullableTypeIfNeeded(checkExpression(declaration.parent.parent.expression)));
+                return indexType.flags & (262144 | 4194304) ? getExtractStringType(indexType) : stringType;
+            }
+            if (ts.isVariableDeclaration(declaration) && declaration.parent.parent.kind === 232) {
+                var forOfStatement = declaration.parent.parent;
+                return checkRightHandSideOfForOf(forOfStatement) || anyType;
+            }
+            if (ts.isBindingPattern(declaration.parent)) {
+                return getTypeForBindingElement(declaration);
+            }
+            var isOptional = includeOptionality && (ts.isParameter(declaration) && isJSDocOptionalParameter(declaration)
+                || !ts.isBindingElement(declaration) && !ts.isVariableDeclaration(declaration) && !!declaration.questionToken);
+            var declaredType = tryGetTypeFromEffectiveTypeNode(declaration);
+            if (declaredType) {
+                return addOptionality(declaredType, isOptional);
+            }
+            if ((noImplicitAny || ts.isInJSFile(declaration)) &&
+                declaration.kind === 242 && !ts.isBindingPattern(declaration.name) &&
+                !(ts.getCombinedModifierFlags(declaration) & 1) && !(declaration.flags & 8388608)) {
+                if (!(ts.getCombinedNodeFlags(declaration) & 2) && (!declaration.initializer || isNullOrUndefined(declaration.initializer))) {
+                    return autoType;
+                }
+                if (declaration.initializer && isEmptyArrayLiteral(declaration.initializer)) {
+                    return autoArrayType;
+                }
+            }
+            if (declaration.kind === 156) {
+                var func = declaration.parent;
+                if (func.kind === 164 && !hasNonBindableDynamicName(func)) {
+                    var getter = ts.getDeclarationOfKind(getSymbolOfNode(declaration.parent), 163);
+                    if (getter) {
+                        var getterSignature = getSignatureFromDeclaration(getter);
+                        var thisParameter = getAccessorThisParameter(func);
+                        if (thisParameter && declaration === thisParameter) {
+                            ts.Debug.assert(!thisParameter.type);
+                            return getTypeOfSymbol(getterSignature.thisParameter);
+                        }
+                        return getReturnTypeOfSignature(getterSignature);
+                    }
+                }
+                if (ts.isInJSFile(declaration)) {
+                    var typeTag = ts.getJSDocType(func);
+                    if (typeTag && ts.isFunctionTypeNode(typeTag)) {
+                        return getTypeAtPosition(getSignatureFromDeclaration(typeTag), func.parameters.indexOf(declaration));
+                    }
+                }
+                var type = declaration.symbol.escapedName === "this" ? getContextualThisParameterType(func) : getContextuallyTypedParameterType(declaration);
+                if (type) {
+                    return addOptionality(type, isOptional);
+                }
+            }
+            else if (ts.isInJSFile(declaration)) {
+                var containerObjectType = getJSContainerObjectType(declaration, getSymbolOfNode(declaration), ts.getDeclaredExpandoInitializer(declaration));
+                if (containerObjectType) {
+                    return containerObjectType;
+                }
+            }
+            if (declaration.initializer) {
+                var type = widenTypeInferredFromInitializer(declaration, checkDeclarationInitializer(declaration));
+                return addOptionality(type, isOptional);
+            }
+            if (ts.isJsxAttribute(declaration)) {
+                return trueType;
+            }
+            if (ts.isBindingPattern(declaration.name)) {
+                return getTypeFromBindingPattern(declaration.name, false, true);
+            }
+            return undefined;
+        }
+        function getWidenedTypeForAssignmentDeclaration(symbol, resolvedSymbol) {
+            var container = ts.getAssignedExpandoInitializer(symbol.valueDeclaration);
+            if (container) {
+                var tag = ts.getJSDocTypeTag(container);
+                if (tag && tag.typeExpression) {
+                    return getTypeFromTypeNode(tag.typeExpression);
+                }
+                var containerObjectType = getJSContainerObjectType(symbol.valueDeclaration, symbol, container);
+                return containerObjectType || getWidenedLiteralType(checkExpressionCached(container));
+            }
+            var definedInConstructor = false;
+            var definedInMethod = false;
+            var jsdocType;
+            var types;
+            for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+                var declaration = _a[_i];
+                var expression = (ts.isBinaryExpression(declaration) || ts.isCallExpression(declaration)) ? declaration :
+                    ts.isAccessExpression(declaration) ? ts.isBinaryExpression(declaration.parent) ? declaration.parent : declaration :
+                        undefined;
+                if (!expression) {
+                    continue;
+                }
+                var kind = ts.isAccessExpression(expression)
+                    ? ts.getAssignmentDeclarationPropertyAccessKind(expression)
+                    : ts.getAssignmentDeclarationKind(expression);
+                if (kind === 4) {
+                    if (isDeclarationInConstructor(expression)) {
+                        definedInConstructor = true;
+                    }
+                    else {
+                        definedInMethod = true;
+                    }
+                }
+                if (!ts.isCallExpression(expression)) {
+                    jsdocType = getAnnotatedTypeForAssignmentDeclaration(jsdocType, expression, symbol, declaration);
+                }
+                if (!jsdocType) {
+                    (types || (types = [])).push((ts.isBinaryExpression(expression) || ts.isCallExpression(expression)) ? getInitializerTypeFromAssignmentDeclaration(symbol, resolvedSymbol, expression, kind) : neverType);
+                }
+            }
+            var type = jsdocType;
+            if (!type) {
+                if (!ts.length(types)) {
+                    return errorType;
+                }
+                var constructorTypes = definedInConstructor ? getConstructorDefinedThisAssignmentTypes(types, symbol.declarations) : undefined;
+                if (definedInMethod) {
+                    var propType = getTypeOfAssignmentDeclarationPropertyOfBaseType(symbol);
+                    if (propType) {
+                        (constructorTypes || (constructorTypes = [])).push(propType);
+                        definedInConstructor = true;
+                    }
+                }
+                var sourceTypes = ts.some(constructorTypes, function (t) { return !!(t.flags & ~98304); }) ? constructorTypes : types;
+                type = getUnionType(sourceTypes, 2);
+            }
+            var widened = getWidenedType(addOptionality(type, definedInMethod && !definedInConstructor));
+            if (filterType(widened, function (t) { return !!(t.flags & ~98304); }) === neverType) {
+                reportImplicitAny(symbol.valueDeclaration, anyType);
+                return anyType;
+            }
+            return widened;
+        }
+        function getJSContainerObjectType(decl, symbol, init) {
+            if (!ts.isInJSFile(decl) || !init || !ts.isObjectLiteralExpression(init) || init.properties.length) {
+                return undefined;
+            }
+            var exports = ts.createSymbolTable();
+            while (ts.isBinaryExpression(decl) || ts.isPropertyAccessExpression(decl)) {
+                var s_2 = getSymbolOfNode(decl);
+                if (s_2 && ts.hasEntries(s_2.exports)) {
+                    mergeSymbolTable(exports, s_2.exports);
+                }
+                decl = ts.isBinaryExpression(decl) ? decl.parent : decl.parent.parent;
+            }
+            var s = getSymbolOfNode(decl);
+            if (s && ts.hasEntries(s.exports)) {
+                mergeSymbolTable(exports, s.exports);
+            }
+            var type = createAnonymousType(symbol, exports, ts.emptyArray, ts.emptyArray, undefined, undefined);
+            type.objectFlags |= 16384;
+            return type;
+        }
+        function getAnnotatedTypeForAssignmentDeclaration(declaredType, expression, symbol, declaration) {
+            var typeNode = ts.getEffectiveTypeAnnotationNode(expression.parent);
+            if (typeNode) {
+                var type = getWidenedType(getTypeFromTypeNode(typeNode));
+                if (!declaredType) {
+                    return type;
+                }
+                else if (declaredType !== errorType && type !== errorType && !isTypeIdenticalTo(declaredType, type)) {
+                    errorNextVariableOrPropertyDeclarationMustHaveSameType(undefined, declaredType, declaration, type);
+                }
+            }
+            if (symbol.parent) {
+                var typeNode_2 = ts.getEffectiveTypeAnnotationNode(symbol.parent.valueDeclaration);
+                if (typeNode_2) {
+                    return getTypeOfPropertyOfType(getTypeFromTypeNode(typeNode_2), symbol.escapedName);
+                }
+            }
+            return declaredType;
+        }
+        function getInitializerTypeFromAssignmentDeclaration(symbol, resolvedSymbol, expression, kind) {
+            if (ts.isCallExpression(expression)) {
+                if (resolvedSymbol) {
+                    return getTypeOfSymbol(resolvedSymbol);
+                }
+                var objectLitType = checkExpressionCached(expression.arguments[2]);
+                var valueType = getTypeOfPropertyOfType(objectLitType, "value");
+                if (valueType) {
+                    return valueType;
+                }
+                var getFunc = getTypeOfPropertyOfType(objectLitType, "get");
+                if (getFunc) {
+                    var getSig = getSingleCallSignature(getFunc);
+                    if (getSig) {
+                        return getReturnTypeOfSignature(getSig);
+                    }
+                }
+                var setFunc = getTypeOfPropertyOfType(objectLitType, "set");
+                if (setFunc) {
+                    var setSig = getSingleCallSignature(setFunc);
+                    if (setSig) {
+                        return getTypeOfFirstParameterOfSignature(setSig);
+                    }
+                }
+                return anyType;
+            }
+            if (containsSameNamedThisProperty(expression.left, expression.right)) {
+                return anyType;
+            }
+            var type = resolvedSymbol ? getTypeOfSymbol(resolvedSymbol) : getWidenedLiteralType(checkExpressionCached(expression.right));
+            if (type.flags & 524288 &&
+                kind === 2 &&
+                symbol.escapedName === "export=") {
+                var exportedType = resolveStructuredTypeMembers(type);
+                var members_4 = ts.createSymbolTable();
+                ts.copyEntries(exportedType.members, members_4);
+                if (resolvedSymbol && !resolvedSymbol.exports) {
+                    resolvedSymbol.exports = ts.createSymbolTable();
+                }
+                (resolvedSymbol || symbol).exports.forEach(function (s, name) {
+                    var _a;
+                    var exportedMember = members_4.get(name);
+                    if (exportedMember && exportedMember !== s) {
+                        if (s.flags & 111551) {
+                            if (ts.getSourceFileOfNode(s.valueDeclaration) !== ts.getSourceFileOfNode(exportedMember.valueDeclaration)) {
+                                var unescapedName = ts.unescapeLeadingUnderscores(s.escapedName);
+                                var exportedMemberName = ((_a = ts.tryCast(exportedMember.valueDeclaration, ts.isNamedDeclaration)) === null || _a === void 0 ? void 0 : _a.name) || exportedMember.valueDeclaration;
+                                ts.addRelatedInfo(error(s.valueDeclaration, ts.Diagnostics.Duplicate_identifier_0, unescapedName), ts.createDiagnosticForNode(exportedMemberName, ts.Diagnostics._0_was_also_declared_here, unescapedName));
+                                ts.addRelatedInfo(error(exportedMemberName, ts.Diagnostics.Duplicate_identifier_0, unescapedName), ts.createDiagnosticForNode(s.valueDeclaration, ts.Diagnostics._0_was_also_declared_here, unescapedName));
+                            }
+                            var union = createSymbol(s.flags | exportedMember.flags, name);
+                            union.type = getUnionType([getTypeOfSymbol(s), getTypeOfSymbol(exportedMember)]);
+                            union.valueDeclaration = exportedMember.valueDeclaration;
+                            union.declarations = ts.concatenate(exportedMember.declarations, s.declarations);
+                            members_4.set(name, union);
+                        }
+                        else {
+                            members_4.set(name, mergeSymbol(s, exportedMember));
+                        }
+                    }
+                    else {
+                        members_4.set(name, s);
+                    }
+                });
+                var result = createAnonymousType(exportedType.symbol, members_4, exportedType.callSignatures, exportedType.constructSignatures, exportedType.stringIndexInfo, exportedType.numberIndexInfo);
+                result.objectFlags |= (ts.getObjectFlags(type) & 16384);
+                return result;
+            }
+            if (isEmptyArrayLiteralType(type)) {
+                reportImplicitAny(expression, anyArrayType);
+                return anyArrayType;
+            }
+            return type;
+        }
+        function containsSameNamedThisProperty(thisProperty, expression) {
+            return ts.isPropertyAccessExpression(thisProperty)
+                && thisProperty.expression.kind === 104
+                && ts.forEachChildRecursively(expression, function (n) { return isMatchingReference(thisProperty, n); });
+        }
+        function isDeclarationInConstructor(expression) {
+            var thisContainer = ts.getThisContainer(expression, false);
+            return thisContainer.kind === 162 ||
+                thisContainer.kind === 244 ||
+                (thisContainer.kind === 201 && !ts.isPrototypePropertyAssignment(thisContainer.parent));
+        }
+        function getConstructorDefinedThisAssignmentTypes(types, declarations) {
+            ts.Debug.assert(types.length === declarations.length);
+            return types.filter(function (_, i) {
+                var declaration = declarations[i];
+                var expression = ts.isBinaryExpression(declaration) ? declaration :
+                    ts.isBinaryExpression(declaration.parent) ? declaration.parent : undefined;
+                return expression && isDeclarationInConstructor(expression);
+            });
+        }
+        function getTypeOfAssignmentDeclarationPropertyOfBaseType(property) {
+            var parentDeclaration = ts.forEach(property.declarations, function (d) {
+                var parent = ts.getThisContainer(d, false).parent;
+                return ts.isClassLike(parent) && parent;
+            });
+            if (parentDeclaration) {
+                var classType = getDeclaredTypeOfSymbol(getSymbolOfNode(parentDeclaration));
+                var baseClassType = classType && getBaseTypes(classType)[0];
+                if (baseClassType) {
+                    return getTypeOfPropertyOfType(baseClassType, property.escapedName);
+                }
+            }
+        }
+        function getTypeFromBindingElement(element, includePatternInType, reportErrors) {
+            if (element.initializer) {
+                var contextualType = ts.isBindingPattern(element.name) ? getTypeFromBindingPattern(element.name, true, false) : unknownType;
+                return addOptionality(widenTypeInferredFromInitializer(element, checkDeclarationInitializer(element, contextualType)));
+            }
+            if (ts.isBindingPattern(element.name)) {
+                return getTypeFromBindingPattern(element.name, includePatternInType, reportErrors);
+            }
+            if (reportErrors && !declarationBelongsToPrivateAmbientMember(element)) {
+                reportImplicitAny(element, anyType);
+            }
+            return includePatternInType ? nonInferrableAnyType : anyType;
+        }
+        function getTypeFromObjectBindingPattern(pattern, includePatternInType, reportErrors) {
+            var members = ts.createSymbolTable();
+            var stringIndexInfo;
+            var objectFlags = 128 | 1048576;
+            ts.forEach(pattern.elements, function (e) {
+                var name = e.propertyName || e.name;
+                if (e.dotDotDotToken) {
+                    stringIndexInfo = createIndexInfo(anyType, false);
+                    return;
+                }
+                var exprType = getLiteralTypeFromPropertyName(name);
+                if (!isTypeUsableAsPropertyName(exprType)) {
+                    objectFlags |= 512;
+                    return;
+                }
+                var text = getPropertyNameFromType(exprType);
+                var flags = 4 | (e.initializer ? 16777216 : 0);
+                var symbol = createSymbol(flags, text);
+                symbol.type = getTypeFromBindingElement(e, includePatternInType, reportErrors);
+                symbol.bindingElement = e;
+                members.set(symbol.escapedName, symbol);
+            });
+            var result = createAnonymousType(undefined, members, ts.emptyArray, ts.emptyArray, stringIndexInfo, undefined);
+            result.objectFlags |= objectFlags;
+            if (includePatternInType) {
+                result.pattern = pattern;
+                result.objectFlags |= 1048576;
+            }
+            return result;
+        }
+        function getTypeFromArrayBindingPattern(pattern, includePatternInType, reportErrors) {
+            var elements = pattern.elements;
+            var lastElement = ts.lastOrUndefined(elements);
+            var hasRestElement = !!(lastElement && lastElement.kind === 191 && lastElement.dotDotDotToken);
+            if (elements.length === 0 || elements.length === 1 && hasRestElement) {
+                return languageVersion >= 2 ? createIterableType(anyType) : anyArrayType;
+            }
+            var elementTypes = ts.map(elements, function (e) { return ts.isOmittedExpression(e) ? anyType : getTypeFromBindingElement(e, includePatternInType, reportErrors); });
+            var minLength = ts.findLastIndex(elements, function (e) { return !ts.isOmittedExpression(e) && !hasDefaultValue(e); }, elements.length - (hasRestElement ? 2 : 1)) + 1;
+            var result = createTupleType(elementTypes, minLength, hasRestElement);
+            if (includePatternInType) {
+                result = cloneTypeReference(result);
+                result.pattern = pattern;
+                result.objectFlags |= 1048576;
+            }
+            return result;
+        }
+        function getTypeFromBindingPattern(pattern, includePatternInType, reportErrors) {
+            if (includePatternInType === void 0) { includePatternInType = false; }
+            if (reportErrors === void 0) { reportErrors = false; }
+            return pattern.kind === 189
+                ? getTypeFromObjectBindingPattern(pattern, includePatternInType, reportErrors)
+                : getTypeFromArrayBindingPattern(pattern, includePatternInType, reportErrors);
+        }
+        function getWidenedTypeForVariableLikeDeclaration(declaration, reportErrors) {
+            return widenTypeForVariableLikeDeclaration(getTypeForVariableLikeDeclaration(declaration, true), declaration, reportErrors);
+        }
+        function widenTypeForVariableLikeDeclaration(type, declaration, reportErrors) {
+            if (type) {
+                if (reportErrors) {
+                    reportErrorsFromWidening(declaration, type);
+                }
+                if (type.flags & 8192 && (ts.isBindingElement(declaration) || !declaration.type) && type.symbol !== getSymbolOfNode(declaration)) {
+                    type = esSymbolType;
+                }
+                return getWidenedType(type);
+            }
+            type = ts.isParameter(declaration) && declaration.dotDotDotToken ? anyArrayType : anyType;
+            if (reportErrors) {
+                if (!declarationBelongsToPrivateAmbientMember(declaration)) {
+                    reportImplicitAny(declaration, type);
+                }
+            }
+            return type;
+        }
+        function declarationBelongsToPrivateAmbientMember(declaration) {
+            var root = ts.getRootDeclaration(declaration);
+            var memberDeclaration = root.kind === 156 ? root.parent : root;
+            return isPrivateWithinAmbient(memberDeclaration);
+        }
+        function tryGetTypeFromEffectiveTypeNode(declaration) {
+            var typeNode = ts.getEffectiveTypeAnnotationNode(declaration);
+            if (typeNode) {
+                return getTypeFromTypeNode(typeNode);
+            }
+        }
+        function getTypeOfVariableOrParameterOrProperty(symbol) {
+            var links = getSymbolLinks(symbol);
+            if (!links.type) {
+                var type = getTypeOfVariableOrParameterOrPropertyWorker(symbol);
+                if (!links.type) {
+                    links.type = type;
+                }
+            }
+            return links.type;
+        }
+        function getTypeOfVariableOrParameterOrPropertyWorker(symbol) {
+            if (symbol.flags & 4194304) {
+                return getTypeOfPrototypeProperty(symbol);
+            }
+            if (symbol === requireSymbol) {
+                return anyType;
+            }
+            if (symbol.flags & 134217728) {
+                var fileSymbol = getSymbolOfNode(ts.getSourceFileOfNode(symbol.valueDeclaration));
+                var members = ts.createSymbolTable();
+                members.set("exports", fileSymbol);
+                return createAnonymousType(symbol, members, ts.emptyArray, ts.emptyArray, undefined, undefined);
+            }
+            var declaration = symbol.valueDeclaration;
+            if (ts.isCatchClauseVariableDeclarationOrBindingElement(declaration)) {
+                return anyType;
+            }
+            if (ts.isSourceFile(declaration) && ts.isJsonSourceFile(declaration)) {
+                if (!declaration.statements.length) {
+                    return emptyObjectType;
+                }
+                return getWidenedType(getWidenedLiteralType(checkExpression(declaration.statements[0].expression)));
+            }
+            if (!pushTypeResolution(symbol, 0)) {
+                if (symbol.flags & 512 && !(symbol.flags & 67108864)) {
+                    return getTypeOfFuncClassEnumModule(symbol);
+                }
+                return reportCircularityError(symbol);
+            }
+            var type;
+            if (declaration.kind === 259) {
+                type = widenTypeForVariableLikeDeclaration(checkExpressionCached(declaration.expression), declaration);
+            }
+            else if (ts.isBinaryExpression(declaration) ||
+                (ts.isInJSFile(declaration) &&
+                    (ts.isCallExpression(declaration) || (ts.isPropertyAccessExpression(declaration) || ts.isBindableStaticElementAccessExpression(declaration)) && ts.isBinaryExpression(declaration.parent)))) {
+                type = getWidenedTypeForAssignmentDeclaration(symbol);
+            }
+            else if (ts.isJSDocPropertyLikeTag(declaration)
+                || ts.isPropertyAccessExpression(declaration)
+                || ts.isElementAccessExpression(declaration)
+                || ts.isIdentifier(declaration)
+                || ts.isStringLiteralLike(declaration)
+                || ts.isNumericLiteral(declaration)
+                || ts.isClassDeclaration(declaration)
+                || ts.isFunctionDeclaration(declaration)
+                || (ts.isMethodDeclaration(declaration) && !ts.isObjectLiteralMethod(declaration))
+                || ts.isMethodSignature(declaration)
+                || ts.isSourceFile(declaration)) {
+                if (symbol.flags & (16 | 8192 | 32 | 384 | 512)) {
+                    return getTypeOfFuncClassEnumModule(symbol);
+                }
+                type = ts.isBinaryExpression(declaration.parent) ?
+                    getWidenedTypeForAssignmentDeclaration(symbol) :
+                    tryGetTypeFromEffectiveTypeNode(declaration) || anyType;
+            }
+            else if (ts.isPropertyAssignment(declaration)) {
+                type = tryGetTypeFromEffectiveTypeNode(declaration) || checkPropertyAssignment(declaration);
+            }
+            else if (ts.isJsxAttribute(declaration)) {
+                type = tryGetTypeFromEffectiveTypeNode(declaration) || checkJsxAttribute(declaration);
+            }
+            else if (ts.isShorthandPropertyAssignment(declaration)) {
+                type = tryGetTypeFromEffectiveTypeNode(declaration) || checkExpressionForMutableLocation(declaration.name, 0);
+            }
+            else if (ts.isObjectLiteralMethod(declaration)) {
+                type = tryGetTypeFromEffectiveTypeNode(declaration) || checkObjectLiteralMethod(declaration, 0);
+            }
+            else if (ts.isParameter(declaration)
+                || ts.isPropertyDeclaration(declaration)
+                || ts.isPropertySignature(declaration)
+                || ts.isVariableDeclaration(declaration)
+                || ts.isBindingElement(declaration)) {
+                type = getWidenedTypeForVariableLikeDeclaration(declaration, true);
+            }
+            else if (ts.isEnumDeclaration(declaration)) {
+                type = getTypeOfFuncClassEnumModule(symbol);
+            }
+            else if (ts.isEnumMember(declaration)) {
+                type = getTypeOfEnumMember(symbol);
+            }
+            else if (ts.isAccessor(declaration)) {
+                type = resolveTypeOfAccessors(symbol);
+            }
+            else {
+                return ts.Debug.fail("Unhandled declaration kind! " + ts.Debug.formatSyntaxKind(declaration.kind) + " for " + ts.Debug.formatSymbol(symbol));
+            }
+            if (!popTypeResolution()) {
+                if (symbol.flags & 512 && !(symbol.flags & 67108864)) {
+                    return getTypeOfFuncClassEnumModule(symbol);
+                }
+                return reportCircularityError(symbol);
+            }
+            return type;
+        }
+        function getAnnotatedAccessorTypeNode(accessor) {
+            if (accessor) {
+                if (accessor.kind === 163) {
+                    var getterTypeAnnotation = ts.getEffectiveReturnTypeNode(accessor);
+                    return getterTypeAnnotation;
+                }
+                else {
+                    var setterTypeAnnotation = ts.getEffectiveSetAccessorTypeAnnotationNode(accessor);
+                    return setterTypeAnnotation;
+                }
+            }
+            return undefined;
+        }
+        function getAnnotatedAccessorType(accessor) {
+            var node = getAnnotatedAccessorTypeNode(accessor);
+            return node && getTypeFromTypeNode(node);
+        }
+        function getAnnotatedAccessorThisParameter(accessor) {
+            var parameter = getAccessorThisParameter(accessor);
+            return parameter && parameter.symbol;
+        }
+        function getThisTypeOfDeclaration(declaration) {
+            return getThisTypeOfSignature(getSignatureFromDeclaration(declaration));
+        }
+        function getTypeOfAccessors(symbol) {
+            var links = getSymbolLinks(symbol);
+            return links.type || (links.type = getTypeOfAccessorsWorker(symbol));
+        }
+        function getTypeOfAccessorsWorker(symbol) {
+            if (!pushTypeResolution(symbol, 0)) {
+                return errorType;
+            }
+            var type = resolveTypeOfAccessors(symbol);
+            if (!popTypeResolution()) {
+                type = anyType;
+                if (noImplicitAny) {
+                    var getter = ts.getDeclarationOfKind(symbol, 163);
+                    error(getter, ts.Diagnostics._0_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions, symbolToString(symbol));
+                }
+            }
+            return type;
+        }
+        function resolveTypeOfAccessors(symbol) {
+            var getter = ts.getDeclarationOfKind(symbol, 163);
+            var setter = ts.getDeclarationOfKind(symbol, 164);
+            if (getter && ts.isInJSFile(getter)) {
+                var jsDocType = getTypeForDeclarationFromJSDocComment(getter);
+                if (jsDocType) {
+                    return jsDocType;
+                }
+            }
+            var getterReturnType = getAnnotatedAccessorType(getter);
+            if (getterReturnType) {
+                return getterReturnType;
+            }
+            else {
+                var setterParameterType = getAnnotatedAccessorType(setter);
+                if (setterParameterType) {
+                    return setterParameterType;
+                }
+                else {
+                    if (getter && getter.body) {
+                        return getReturnTypeFromBody(getter);
+                    }
+                    else {
+                        if (setter) {
+                            if (!isPrivateWithinAmbient(setter)) {
+                                errorOrSuggestion(noImplicitAny, setter, ts.Diagnostics.Property_0_implicitly_has_type_any_because_its_set_accessor_lacks_a_parameter_type_annotation, symbolToString(symbol));
+                            }
+                        }
+                        else {
+                            ts.Debug.assert(!!getter, "there must exist a getter as we are current checking either setter or getter in this function");
+                            if (!isPrivateWithinAmbient(getter)) {
+                                errorOrSuggestion(noImplicitAny, getter, ts.Diagnostics.Property_0_implicitly_has_type_any_because_its_get_accessor_lacks_a_return_type_annotation, symbolToString(symbol));
+                            }
+                        }
+                        return anyType;
+                    }
+                }
+            }
+        }
+        function getBaseTypeVariableOfClass(symbol) {
+            var baseConstructorType = getBaseConstructorTypeOfClass(getDeclaredTypeOfClassOrInterface(symbol));
+            return baseConstructorType.flags & 8650752 ? baseConstructorType :
+                baseConstructorType.flags & 2097152 ? ts.find(baseConstructorType.types, function (t) { return !!(t.flags & 8650752); }) :
+                    undefined;
+        }
+        function getTypeOfFuncClassEnumModule(symbol) {
+            var links = getSymbolLinks(symbol);
+            var originalLinks = links;
+            if (!links.type) {
+                var jsDeclaration = symbol.valueDeclaration && ts.getDeclarationOfExpando(symbol.valueDeclaration);
+                if (jsDeclaration) {
+                    var merged = mergeJSSymbols(symbol, getSymbolOfNode(jsDeclaration));
+                    if (merged) {
+                        symbol = links = merged;
+                    }
+                }
+                originalLinks.type = links.type = getTypeOfFuncClassEnumModuleWorker(symbol);
+            }
+            return links.type;
+        }
+        function getTypeOfFuncClassEnumModuleWorker(symbol) {
+            var declaration = symbol.valueDeclaration;
+            if (symbol.flags & 1536 && ts.isShorthandAmbientModuleSymbol(symbol)) {
+                return anyType;
+            }
+            else if (declaration && (declaration.kind === 209 ||
+                ts.isAccessExpression(declaration) &&
+                    declaration.parent.kind === 209)) {
+                return getWidenedTypeForAssignmentDeclaration(symbol);
+            }
+            else if (symbol.flags & 512 && declaration && ts.isSourceFile(declaration) && declaration.commonJsModuleIndicator) {
+                var resolvedModule = resolveExternalModuleSymbol(symbol);
+                if (resolvedModule !== symbol) {
+                    if (!pushTypeResolution(symbol, 0)) {
+                        return errorType;
+                    }
+                    var exportEquals = getMergedSymbol(symbol.exports.get("export="));
+                    var type_1 = getWidenedTypeForAssignmentDeclaration(exportEquals, exportEquals === resolvedModule ? undefined : resolvedModule);
+                    if (!popTypeResolution()) {
+                        return reportCircularityError(symbol);
+                    }
+                    return type_1;
+                }
+            }
+            var type = createObjectType(16, symbol);
+            if (symbol.flags & 32) {
+                var baseTypeVariable = getBaseTypeVariableOfClass(symbol);
+                return baseTypeVariable ? getIntersectionType([type, baseTypeVariable]) : type;
+            }
+            else {
+                return strictNullChecks && symbol.flags & 16777216 ? getOptionalType(type) : type;
+            }
+        }
+        function getTypeOfEnumMember(symbol) {
+            var links = getSymbolLinks(symbol);
+            return links.type || (links.type = getDeclaredTypeOfEnumMember(symbol));
+        }
+        function getTypeOfAlias(symbol) {
+            var links = getSymbolLinks(symbol);
+            if (!links.type) {
+                var targetSymbol = resolveAlias(symbol);
+                links.type = targetSymbol.flags & 111551
+                    ? getTypeOfSymbol(targetSymbol)
+                    : errorType;
+            }
+            return links.type;
+        }
+        function getTypeOfInstantiatedSymbol(symbol) {
+            var links = getSymbolLinks(symbol);
+            if (!links.type) {
+                if (!pushTypeResolution(symbol, 0)) {
+                    return links.type = errorType;
+                }
+                var type = instantiateType(getTypeOfSymbol(links.target), links.mapper);
+                if (!popTypeResolution()) {
+                    type = reportCircularityError(symbol);
+                }
+                links.type = type;
+            }
+            return links.type;
+        }
+        function reportCircularityError(symbol) {
+            var declaration = symbol.valueDeclaration;
+            if (ts.getEffectiveTypeAnnotationNode(declaration)) {
+                error(symbol.valueDeclaration, ts.Diagnostics._0_is_referenced_directly_or_indirectly_in_its_own_type_annotation, symbolToString(symbol));
+                return errorType;
+            }
+            if (noImplicitAny && (declaration.kind !== 156 || declaration.initializer)) {
+                error(symbol.valueDeclaration, ts.Diagnostics._0_implicitly_has_type_any_because_it_does_not_have_a_type_annotation_and_is_referenced_directly_or_indirectly_in_its_own_initializer, symbolToString(symbol));
+            }
+            return anyType;
+        }
+        function getTypeOfSymbolWithDeferredType(symbol) {
+            var links = getSymbolLinks(symbol);
+            if (!links.type) {
+                ts.Debug.assertIsDefined(links.deferralParent);
+                ts.Debug.assertIsDefined(links.deferralConstituents);
+                links.type = links.deferralParent.flags & 1048576 ? getUnionType(links.deferralConstituents) : getIntersectionType(links.deferralConstituents);
+            }
+            return links.type;
+        }
+        function getTypeOfSymbol(symbol) {
+            var checkFlags = ts.getCheckFlags(symbol);
+            if (checkFlags & 65536) {
+                return getTypeOfSymbolWithDeferredType(symbol);
+            }
+            if (checkFlags & 1) {
+                return getTypeOfInstantiatedSymbol(symbol);
+            }
+            if (checkFlags & 262144) {
+                return getTypeOfMappedSymbol(symbol);
+            }
+            if (checkFlags & 8192) {
+                return getTypeOfReverseMappedSymbol(symbol);
+            }
+            if (symbol.flags & (3 | 4)) {
+                return getTypeOfVariableOrParameterOrProperty(symbol);
+            }
+            if (symbol.flags & (16 | 8192 | 32 | 384 | 512)) {
+                return getTypeOfFuncClassEnumModule(symbol);
+            }
+            if (symbol.flags & 8) {
+                return getTypeOfEnumMember(symbol);
+            }
+            if (symbol.flags & 98304) {
+                return getTypeOfAccessors(symbol);
+            }
+            if (symbol.flags & 2097152) {
+                return getTypeOfAlias(symbol);
+            }
+            return errorType;
+        }
+        function isReferenceToType(type, target) {
+            return type !== undefined
+                && target !== undefined
+                && (ts.getObjectFlags(type) & 4) !== 0
+                && type.target === target;
+        }
+        function getTargetType(type) {
+            return ts.getObjectFlags(type) & 4 ? type.target : type;
+        }
+        function hasBaseType(type, checkBase) {
+            return check(type);
+            function check(type) {
+                if (ts.getObjectFlags(type) & (3 | 4)) {
+                    var target = getTargetType(type);
+                    return target === checkBase || ts.some(getBaseTypes(target), check);
+                }
+                else if (type.flags & 2097152) {
+                    return ts.some(type.types, check);
+                }
+                return false;
+            }
+        }
+        function appendTypeParameters(typeParameters, declarations) {
+            for (var _i = 0, declarations_2 = declarations; _i < declarations_2.length; _i++) {
+                var declaration = declarations_2[_i];
+                typeParameters = ts.appendIfUnique(typeParameters, getDeclaredTypeOfTypeParameter(getSymbolOfNode(declaration)));
+            }
+            return typeParameters;
+        }
+        function getOuterTypeParameters(node, includeThisTypes) {
+            while (true) {
+                node = node.parent;
+                if (node && ts.isBinaryExpression(node)) {
+                    var assignmentKind = ts.getAssignmentDeclarationKind(node);
+                    if (assignmentKind === 6 || assignmentKind === 3) {
+                        var symbol = getSymbolOfNode(node.left);
+                        if (symbol && symbol.parent && !ts.findAncestor(symbol.parent.valueDeclaration, function (d) { return node === d; })) {
+                            node = symbol.parent.valueDeclaration;
+                        }
+                    }
+                }
+                if (!node) {
+                    return undefined;
+                }
+                switch (node.kind) {
+                    case 225:
+                    case 245:
+                    case 214:
+                    case 246:
+                    case 165:
+                    case 166:
+                    case 160:
+                    case 170:
+                    case 171:
+                    case 300:
+                    case 244:
+                    case 161:
+                    case 201:
+                    case 202:
+                    case 247:
+                    case 321:
+                    case 322:
+                    case 316:
+                    case 315:
+                    case 186:
+                    case 180:
+                        var outerTypeParameters = getOuterTypeParameters(node, includeThisTypes);
+                        if (node.kind === 186) {
+                            return ts.append(outerTypeParameters, getDeclaredTypeOfTypeParameter(getSymbolOfNode(node.typeParameter)));
+                        }
+                        else if (node.kind === 180) {
+                            return ts.concatenate(outerTypeParameters, getInferTypeParameters(node));
+                        }
+                        else if (node.kind === 225 && !ts.isInJSFile(node)) {
+                            break;
+                        }
+                        var outerAndOwnTypeParameters = appendTypeParameters(outerTypeParameters, ts.getEffectiveTypeParameterDeclarations(node));
+                        var thisType = includeThisTypes &&
+                            (node.kind === 245 || node.kind === 214 || node.kind === 246 || isJSConstructor(node)) &&
+                            getDeclaredTypeOfClassOrInterface(getSymbolOfNode(node)).thisType;
+                        return thisType ? ts.append(outerAndOwnTypeParameters, thisType) : outerAndOwnTypeParameters;
+                }
+            }
+        }
+        function getOuterTypeParametersOfClassOrInterface(symbol) {
+            var declaration = symbol.flags & 32 ? symbol.valueDeclaration : ts.getDeclarationOfKind(symbol, 246);
+            ts.Debug.assert(!!declaration, "Class was missing valueDeclaration -OR- non-class had no interface declarations");
+            return getOuterTypeParameters(declaration);
+        }
+        function getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol) {
+            var result;
+            for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+                var node = _a[_i];
+                if (node.kind === 246 ||
+                    node.kind === 245 ||
+                    node.kind === 214 ||
+                    isJSConstructor(node) ||
+                    ts.isTypeAlias(node)) {
+                    var declaration = node;
+                    result = appendTypeParameters(result, ts.getEffectiveTypeParameterDeclarations(declaration));
+                }
+            }
+            return result;
+        }
+        function getTypeParametersOfClassOrInterface(symbol) {
+            return ts.concatenate(getOuterTypeParametersOfClassOrInterface(symbol), getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol));
+        }
+        function isMixinConstructorType(type) {
+            var signatures = getSignaturesOfType(type, 1);
+            if (signatures.length === 1) {
+                var s = signatures[0];
+                return !s.typeParameters && s.parameters.length === 1 && signatureHasRestParameter(s) && getElementTypeOfArrayType(getTypeOfParameter(s.parameters[0])) === anyType;
+            }
+            return false;
+        }
+        function isConstructorType(type) {
+            if (getSignaturesOfType(type, 1).length > 0) {
+                return true;
+            }
+            if (type.flags & 8650752) {
+                var constraint = getBaseConstraintOfType(type);
+                return !!constraint && isMixinConstructorType(constraint);
+            }
+            return false;
+        }
+        function getBaseTypeNodeOfClass(type) {
+            return ts.getEffectiveBaseTypeNode(type.symbol.valueDeclaration);
+        }
+        function getConstructorsForTypeArguments(type, typeArgumentNodes, location) {
+            var typeArgCount = ts.length(typeArgumentNodes);
+            var isJavascript = ts.isInJSFile(location);
+            return ts.filter(getSignaturesOfType(type, 1), function (sig) { return (isJavascript || typeArgCount >= getMinTypeArgumentCount(sig.typeParameters)) && typeArgCount <= ts.length(sig.typeParameters); });
+        }
+        function getInstantiatedConstructorsForTypeArguments(type, typeArgumentNodes, location) {
+            var signatures = getConstructorsForTypeArguments(type, typeArgumentNodes, location);
+            var typeArguments = ts.map(typeArgumentNodes, getTypeFromTypeNode);
+            return ts.sameMap(signatures, function (sig) { return ts.some(sig.typeParameters) ? getSignatureInstantiation(sig, typeArguments, ts.isInJSFile(location)) : sig; });
+        }
+        function getBaseConstructorTypeOfClass(type) {
+            if (!type.resolvedBaseConstructorType) {
+                var decl = type.symbol.valueDeclaration;
+                var extended = ts.getEffectiveBaseTypeNode(decl);
+                var baseTypeNode = getBaseTypeNodeOfClass(type);
+                if (!baseTypeNode) {
+                    return type.resolvedBaseConstructorType = undefinedType;
+                }
+                if (!pushTypeResolution(type, 1)) {
+                    return errorType;
+                }
+                var baseConstructorType = checkExpression(baseTypeNode.expression);
+                if (extended && baseTypeNode !== extended) {
+                    ts.Debug.assert(!extended.typeArguments);
+                    checkExpression(extended.expression);
+                }
+                if (baseConstructorType.flags & (524288 | 2097152)) {
+                    resolveStructuredTypeMembers(baseConstructorType);
+                }
+                if (!popTypeResolution()) {
+                    error(type.symbol.valueDeclaration, ts.Diagnostics._0_is_referenced_directly_or_indirectly_in_its_own_base_expression, symbolToString(type.symbol));
+                    return type.resolvedBaseConstructorType = errorType;
+                }
+                if (!(baseConstructorType.flags & 1) && baseConstructorType !== nullWideningType && !isConstructorType(baseConstructorType)) {
+                    var err = error(baseTypeNode.expression, ts.Diagnostics.Type_0_is_not_a_constructor_function_type, typeToString(baseConstructorType));
+                    if (baseConstructorType.flags & 262144) {
+                        var constraint = getConstraintFromTypeParameter(baseConstructorType);
+                        var ctorReturn = unknownType;
+                        if (constraint) {
+                            var ctorSig = getSignaturesOfType(constraint, 1);
+                            if (ctorSig[0]) {
+                                ctorReturn = getReturnTypeOfSignature(ctorSig[0]);
+                            }
+                        }
+                        ts.addRelatedInfo(err, ts.createDiagnosticForNode(baseConstructorType.symbol.declarations[0], ts.Diagnostics.Did_you_mean_for_0_to_be_constrained_to_type_new_args_Colon_any_1, symbolToString(baseConstructorType.symbol), typeToString(ctorReturn)));
+                    }
+                    return type.resolvedBaseConstructorType = errorType;
+                }
+                type.resolvedBaseConstructorType = baseConstructorType;
+            }
+            return type.resolvedBaseConstructorType;
+        }
+        function getImplementsTypes(type) {
+            var resolvedImplementsTypes = ts.emptyArray;
+            for (var _i = 0, _a = type.symbol.declarations; _i < _a.length; _i++) {
+                var declaration = _a[_i];
+                var implementsTypeNodes = ts.getEffectiveImplementsTypeNodes(declaration);
+                if (!implementsTypeNodes)
+                    continue;
+                for (var _b = 0, implementsTypeNodes_1 = implementsTypeNodes; _b < implementsTypeNodes_1.length; _b++) {
+                    var node = implementsTypeNodes_1[_b];
+                    var implementsType = getTypeFromTypeNode(node);
+                    if (implementsType !== errorType) {
+                        if (resolvedImplementsTypes === ts.emptyArray) {
+                            resolvedImplementsTypes = [implementsType];
+                        }
+                        else {
+                            resolvedImplementsTypes.push(implementsType);
+                        }
+                    }
+                }
+            }
+            return resolvedImplementsTypes;
+        }
+        function getBaseTypes(type) {
+            if (!type.resolvedBaseTypes) {
+                if (type.objectFlags & 8) {
+                    type.resolvedBaseTypes = [createArrayType(getUnionType(type.typeParameters || ts.emptyArray), type.readonly)];
+                }
+                else if (type.symbol.flags & (32 | 64)) {
+                    if (type.symbol.flags & 32) {
+                        resolveBaseTypesOfClass(type);
+                    }
+                    if (type.symbol.flags & 64) {
+                        resolveBaseTypesOfInterface(type);
+                    }
+                }
+                else {
+                    ts.Debug.fail("type must be class or interface");
+                }
+            }
+            return type.resolvedBaseTypes;
+        }
+        function resolveBaseTypesOfClass(type) {
+            type.resolvedBaseTypes = ts.resolvingEmptyArray;
+            var baseConstructorType = getApparentType(getBaseConstructorTypeOfClass(type));
+            if (!(baseConstructorType.flags & (524288 | 2097152 | 1))) {
+                return type.resolvedBaseTypes = ts.emptyArray;
+            }
+            var baseTypeNode = getBaseTypeNodeOfClass(type);
+            var baseType;
+            var originalBaseType = baseConstructorType.symbol ? getDeclaredTypeOfSymbol(baseConstructorType.symbol) : undefined;
+            if (baseConstructorType.symbol && baseConstructorType.symbol.flags & 32 &&
+                areAllOuterTypeParametersApplied(originalBaseType)) {
+                baseType = getTypeFromClassOrInterfaceReference(baseTypeNode, baseConstructorType.symbol);
+            }
+            else if (baseConstructorType.flags & 1) {
+                baseType = baseConstructorType;
+            }
+            else {
+                var constructors = getInstantiatedConstructorsForTypeArguments(baseConstructorType, baseTypeNode.typeArguments, baseTypeNode);
+                if (!constructors.length) {
+                    error(baseTypeNode.expression, ts.Diagnostics.No_base_constructor_has_the_specified_number_of_type_arguments);
+                    return type.resolvedBaseTypes = ts.emptyArray;
+                }
+                baseType = getReturnTypeOfSignature(constructors[0]);
+            }
+            if (baseType === errorType) {
+                return type.resolvedBaseTypes = ts.emptyArray;
+            }
+            var reducedBaseType = getReducedType(baseType);
+            if (!isValidBaseType(reducedBaseType)) {
+                var elaboration = elaborateNeverIntersection(undefined, baseType);
+                var diagnostic = ts.chainDiagnosticMessages(elaboration, ts.Diagnostics.Base_constructor_return_type_0_is_not_an_object_type_or_intersection_of_object_types_with_statically_known_members, typeToString(reducedBaseType));
+                diagnostics.add(ts.createDiagnosticForNodeFromMessageChain(baseTypeNode.expression, diagnostic));
+                return type.resolvedBaseTypes = ts.emptyArray;
+            }
+            if (type === reducedBaseType || hasBaseType(reducedBaseType, type)) {
+                error(type.symbol.valueDeclaration, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, undefined, 2));
+                return type.resolvedBaseTypes = ts.emptyArray;
+            }
+            if (type.resolvedBaseTypes === ts.resolvingEmptyArray) {
+                type.members = undefined;
+            }
+            return type.resolvedBaseTypes = [reducedBaseType];
+        }
+        function areAllOuterTypeParametersApplied(type) {
+            var outerTypeParameters = type.outerTypeParameters;
+            if (outerTypeParameters) {
+                var last_1 = outerTypeParameters.length - 1;
+                var typeArguments = getTypeArguments(type);
+                return outerTypeParameters[last_1].symbol !== typeArguments[last_1].symbol;
+            }
+            return true;
+        }
+        function isValidBaseType(type) {
+            if (type.flags & 262144) {
+                var constraint = getBaseConstraintOfType(type);
+                if (constraint) {
+                    return isValidBaseType(constraint);
+                }
+            }
+            return !!(type.flags & (524288 | 67108864 | 1) && !isGenericMappedType(type) ||
+                type.flags & 2097152 && ts.every(type.types, isValidBaseType));
+        }
+        function resolveBaseTypesOfInterface(type) {
+            type.resolvedBaseTypes = type.resolvedBaseTypes || ts.emptyArray;
+            for (var _i = 0, _a = type.symbol.declarations; _i < _a.length; _i++) {
+                var declaration = _a[_i];
+                if (declaration.kind === 246 && ts.getInterfaceBaseTypeNodes(declaration)) {
+                    for (var _b = 0, _c = ts.getInterfaceBaseTypeNodes(declaration); _b < _c.length; _b++) {
+                        var node = _c[_b];
+                        var baseType = getReducedType(getTypeFromTypeNode(node));
+                        if (baseType !== errorType) {
+                            if (isValidBaseType(baseType)) {
+                                if (type !== baseType && !hasBaseType(baseType, type)) {
+                                    if (type.resolvedBaseTypes === ts.emptyArray) {
+                                        type.resolvedBaseTypes = [baseType];
+                                    }
+                                    else {
+                                        type.resolvedBaseTypes.push(baseType);
+                                    }
+                                }
+                                else {
+                                    error(declaration, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, undefined, 2));
+                                }
+                            }
+                            else {
+                                error(node, ts.Diagnostics.An_interface_can_only_extend_an_object_type_or_intersection_of_object_types_with_statically_known_members);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        function isThislessInterface(symbol) {
+            for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+                var declaration = _a[_i];
+                if (declaration.kind === 246) {
+                    if (declaration.flags & 128) {
+                        return false;
+                    }
+                    var baseTypeNodes = ts.getInterfaceBaseTypeNodes(declaration);
+                    if (baseTypeNodes) {
+                        for (var _b = 0, baseTypeNodes_1 = baseTypeNodes; _b < baseTypeNodes_1.length; _b++) {
+                            var node = baseTypeNodes_1[_b];
+                            if (ts.isEntityNameExpression(node.expression)) {
+                                var baseSymbol = resolveEntityName(node.expression, 788968, true);
+                                if (!baseSymbol || !(baseSymbol.flags & 64) || getDeclaredTypeOfClassOrInterface(baseSymbol).thisType) {
+                                    return false;
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            return true;
+        }
+        function getDeclaredTypeOfClassOrInterface(symbol) {
+            var links = getSymbolLinks(symbol);
+            var originalLinks = links;
+            if (!links.declaredType) {
+                var kind = symbol.flags & 32 ? 1 : 2;
+                var merged = mergeJSSymbols(symbol, getAssignedClassSymbol(symbol.valueDeclaration));
+                if (merged) {
+                    symbol = links = merged;
+                }
+                var type = originalLinks.declaredType = links.declaredType = createObjectType(kind, symbol);
+                var outerTypeParameters = getOuterTypeParametersOfClassOrInterface(symbol);
+                var localTypeParameters = getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol);
+                if (outerTypeParameters || localTypeParameters || kind === 1 || !isThislessInterface(symbol)) {
+                    type.objectFlags |= 4;
+                    type.typeParameters = ts.concatenate(outerTypeParameters, localTypeParameters);
+                    type.outerTypeParameters = outerTypeParameters;
+                    type.localTypeParameters = localTypeParameters;
+                    type.instantiations = ts.createMap();
+                    type.instantiations.set(getTypeListId(type.typeParameters), type);
+                    type.target = type;
+                    type.resolvedTypeArguments = type.typeParameters;
+                    type.thisType = createTypeParameter(symbol);
+                    type.thisType.isThisType = true;
+                    type.thisType.constraint = type;
+                }
+            }
+            return links.declaredType;
+        }
+        function getDeclaredTypeOfTypeAlias(symbol) {
+            var links = getSymbolLinks(symbol);
+            if (!links.declaredType) {
+                if (!pushTypeResolution(symbol, 2)) {
+                    return errorType;
+                }
+                var declaration = ts.Debug.checkDefined(ts.find(symbol.declarations, ts.isTypeAlias), "Type alias symbol with no valid declaration found");
+                var typeNode = ts.isJSDocTypeAlias(declaration) ? declaration.typeExpression : declaration.type;
+                var type = typeNode ? getTypeFromTypeNode(typeNode) : errorType;
+                if (popTypeResolution()) {
+                    var typeParameters = getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol);
+                    if (typeParameters) {
+                        links.typeParameters = typeParameters;
+                        links.instantiations = ts.createMap();
+                        links.instantiations.set(getTypeListId(typeParameters), type);
+                    }
+                }
+                else {
+                    type = errorType;
+                    error(ts.isNamedDeclaration(declaration) ? declaration.name : declaration || declaration, ts.Diagnostics.Type_alias_0_circularly_references_itself, symbolToString(symbol));
+                }
+                links.declaredType = type;
+            }
+            return links.declaredType;
+        }
+        function isStringConcatExpression(expr) {
+            if (ts.isStringLiteralLike(expr)) {
+                return true;
+            }
+            else if (expr.kind === 209) {
+                return isStringConcatExpression(expr.left) && isStringConcatExpression(expr.right);
+            }
+            return false;
+        }
+        function isLiteralEnumMember(member) {
+            var expr = member.initializer;
+            if (!expr) {
+                return !(member.flags & 8388608);
+            }
+            switch (expr.kind) {
+                case 10:
+                case 8:
+                case 14:
+                    return true;
+                case 207:
+                    return expr.operator === 40 &&
+                        expr.operand.kind === 8;
+                case 75:
+                    return ts.nodeIsMissing(expr) || !!getSymbolOfNode(member.parent).exports.get(expr.escapedText);
+                case 209:
+                    return isStringConcatExpression(expr);
+                default:
+                    return false;
+            }
+        }
+        function getEnumKind(symbol) {
+            var links = getSymbolLinks(symbol);
+            if (links.enumKind !== undefined) {
+                return links.enumKind;
+            }
+            var hasNonLiteralMember = false;
+            for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+                var declaration = _a[_i];
+                if (declaration.kind === 248) {
+                    for (var _b = 0, _c = declaration.members; _b < _c.length; _b++) {
+                        var member = _c[_b];
+                        if (member.initializer && ts.isStringLiteralLike(member.initializer)) {
+                            return links.enumKind = 1;
+                        }
+                        if (!isLiteralEnumMember(member)) {
+                            hasNonLiteralMember = true;
+                        }
+                    }
+                }
+            }
+            return links.enumKind = hasNonLiteralMember ? 0 : 1;
+        }
+        function getBaseTypeOfEnumLiteralType(type) {
+            return type.flags & 1024 && !(type.flags & 1048576) ? getDeclaredTypeOfSymbol(getParentOfSymbol(type.symbol)) : type;
+        }
+        function getDeclaredTypeOfEnum(symbol) {
+            var links = getSymbolLinks(symbol);
+            if (links.declaredType) {
+                return links.declaredType;
+            }
+            if (getEnumKind(symbol) === 1) {
+                enumCount++;
+                var memberTypeList = [];
+                for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+                    var declaration = _a[_i];
+                    if (declaration.kind === 248) {
+                        for (var _b = 0, _c = declaration.members; _b < _c.length; _b++) {
+                            var member = _c[_b];
+                            var value = getEnumMemberValue(member);
+                            var memberType = getFreshTypeOfLiteralType(getLiteralType(value !== undefined ? value : 0, enumCount, getSymbolOfNode(member)));
+                            getSymbolLinks(getSymbolOfNode(member)).declaredType = memberType;
+                            memberTypeList.push(getRegularTypeOfLiteralType(memberType));
+                        }
+                    }
+                }
+                if (memberTypeList.length) {
+                    var enumType_1 = getUnionType(memberTypeList, 1, symbol, undefined);
+                    if (enumType_1.flags & 1048576) {
+                        enumType_1.flags |= 1024;
+                        enumType_1.symbol = symbol;
+                    }
+                    return links.declaredType = enumType_1;
+                }
+            }
+            var enumType = createType(32);
+            enumType.symbol = symbol;
+            return links.declaredType = enumType;
+        }
+        function getDeclaredTypeOfEnumMember(symbol) {
+            var links = getSymbolLinks(symbol);
+            if (!links.declaredType) {
+                var enumType = getDeclaredTypeOfEnum(getParentOfSymbol(symbol));
+                if (!links.declaredType) {
+                    links.declaredType = enumType;
+                }
+            }
+            return links.declaredType;
+        }
+        function getDeclaredTypeOfTypeParameter(symbol) {
+            var links = getSymbolLinks(symbol);
+            return links.declaredType || (links.declaredType = createTypeParameter(symbol));
+        }
+        function getDeclaredTypeOfAlias(symbol) {
+            var links = getSymbolLinks(symbol);
+            return links.declaredType || (links.declaredType = getDeclaredTypeOfSymbol(resolveAlias(symbol)));
+        }
+        function getDeclaredTypeOfSymbol(symbol) {
+            return tryGetDeclaredTypeOfSymbol(symbol) || errorType;
+        }
+        function tryGetDeclaredTypeOfSymbol(symbol) {
+            if (symbol.flags & (32 | 64)) {
+                return getDeclaredTypeOfClassOrInterface(symbol);
+            }
+            if (symbol.flags & 524288) {
+                return getDeclaredTypeOfTypeAlias(symbol);
+            }
+            if (symbol.flags & 262144) {
+                return getDeclaredTypeOfTypeParameter(symbol);
+            }
+            if (symbol.flags & 384) {
+                return getDeclaredTypeOfEnum(symbol);
+            }
+            if (symbol.flags & 8) {
+                return getDeclaredTypeOfEnumMember(symbol);
+            }
+            if (symbol.flags & 2097152) {
+                return getDeclaredTypeOfAlias(symbol);
+            }
+            return undefined;
+        }
+        function isThislessType(node) {
+            switch (node.kind) {
+                case 125:
+                case 148:
+                case 143:
+                case 140:
+                case 151:
+                case 128:
+                case 144:
+                case 141:
+                case 110:
+                case 146:
+                case 100:
+                case 137:
+                case 187:
+                    return true;
+                case 174:
+                    return isThislessType(node.elementType);
+                case 169:
+                    return !node.typeArguments || node.typeArguments.every(isThislessType);
+            }
+            return false;
+        }
+        function isThislessTypeParameter(node) {
+            var constraint = ts.getEffectiveConstraintOfTypeParameter(node);
+            return !constraint || isThislessType(constraint);
+        }
+        function isThislessVariableLikeDeclaration(node) {
+            var typeNode = ts.getEffectiveTypeAnnotationNode(node);
+            return typeNode ? isThislessType(typeNode) : !ts.hasInitializer(node);
+        }
+        function isThislessFunctionLikeDeclaration(node) {
+            var returnType = ts.getEffectiveReturnTypeNode(node);
+            var typeParameters = ts.getEffectiveTypeParameterDeclarations(node);
+            return (node.kind === 162 || (!!returnType && isThislessType(returnType))) &&
+                node.parameters.every(isThislessVariableLikeDeclaration) &&
+                typeParameters.every(isThislessTypeParameter);
+        }
+        function isThisless(symbol) {
+            if (symbol.declarations && symbol.declarations.length === 1) {
+                var declaration = symbol.declarations[0];
+                if (declaration) {
+                    switch (declaration.kind) {
+                        case 159:
+                        case 158:
+                            return isThislessVariableLikeDeclaration(declaration);
+                        case 161:
+                        case 160:
+                        case 162:
+                        case 163:
+                        case 164:
+                            return isThislessFunctionLikeDeclaration(declaration);
+                    }
+                }
+            }
+            return false;
+        }
+        function createInstantiatedSymbolTable(symbols, mapper, mappingThisOnly) {
+            var result = ts.createSymbolTable();
+            for (var _i = 0, symbols_2 = symbols; _i < symbols_2.length; _i++) {
+                var symbol = symbols_2[_i];
+                result.set(symbol.escapedName, mappingThisOnly && isThisless(symbol) ? symbol : instantiateSymbol(symbol, mapper));
+            }
+            return result;
+        }
+        function addInheritedMembers(symbols, baseSymbols) {
+            for (var _i = 0, baseSymbols_1 = baseSymbols; _i < baseSymbols_1.length; _i++) {
+                var s = baseSymbols_1[_i];
+                if (!symbols.has(s.escapedName) && !isStaticPrivateIdentifierProperty(s)) {
+                    symbols.set(s.escapedName, s);
+                }
+            }
+        }
+        function isStaticPrivateIdentifierProperty(s) {
+            return !!s.valueDeclaration && ts.isPrivateIdentifierPropertyDeclaration(s.valueDeclaration) && ts.hasModifier(s.valueDeclaration, 32);
+        }
+        function resolveDeclaredMembers(type) {
+            if (!type.declaredProperties) {
+                var symbol = type.symbol;
+                var members = getMembersOfSymbol(symbol);
+                type.declaredProperties = getNamedMembers(members);
+                type.declaredCallSignatures = ts.emptyArray;
+                type.declaredConstructSignatures = ts.emptyArray;
+                type.declaredCallSignatures = getSignaturesOfSymbol(members.get("__call"));
+                type.declaredConstructSignatures = getSignaturesOfSymbol(members.get("__new"));
+                type.declaredStringIndexInfo = getIndexInfoOfSymbol(symbol, 0);
+                type.declaredNumberIndexInfo = getIndexInfoOfSymbol(symbol, 1);
+            }
+            return type;
+        }
+        function isTypeUsableAsPropertyName(type) {
+            return !!(type.flags & 8576);
+        }
+        function isLateBindableName(node) {
+            if (!ts.isComputedPropertyName(node) && !ts.isElementAccessExpression(node)) {
+                return false;
+            }
+            var expr = ts.isComputedPropertyName(node) ? node.expression : node.argumentExpression;
+            return ts.isEntityNameExpression(expr)
+                && isTypeUsableAsPropertyName(ts.isComputedPropertyName(node) ? checkComputedPropertyName(node) : checkExpressionCached(expr));
+        }
+        function isLateBoundName(name) {
+            return name.charCodeAt(0) === 95 &&
+                name.charCodeAt(1) === 95 &&
+                name.charCodeAt(2) === 64;
+        }
+        function hasLateBindableName(node) {
+            var name = ts.getNameOfDeclaration(node);
+            return !!name && isLateBindableName(name);
+        }
+        function hasNonBindableDynamicName(node) {
+            return ts.hasDynamicName(node) && !hasLateBindableName(node);
+        }
+        function isNonBindableDynamicName(node) {
+            return ts.isDynamicName(node) && !isLateBindableName(node);
+        }
+        function getPropertyNameFromType(type) {
+            if (type.flags & 8192) {
+                return type.escapedName;
+            }
+            if (type.flags & (128 | 256)) {
+                return ts.escapeLeadingUnderscores("" + type.value);
+            }
+            return ts.Debug.fail();
+        }
+        function addDeclarationToLateBoundSymbol(symbol, member, symbolFlags) {
+            ts.Debug.assert(!!(ts.getCheckFlags(symbol) & 4096), "Expected a late-bound symbol.");
+            symbol.flags |= symbolFlags;
+            getSymbolLinks(member.symbol).lateSymbol = symbol;
+            if (!symbol.declarations) {
+                symbol.declarations = [member];
+            }
+            else {
+                symbol.declarations.push(member);
+            }
+            if (symbolFlags & 111551) {
+                if (!symbol.valueDeclaration || symbol.valueDeclaration.kind !== member.kind) {
+                    symbol.valueDeclaration = member;
+                }
+            }
+        }
+        function lateBindMember(parent, earlySymbols, lateSymbols, decl) {
+            ts.Debug.assert(!!decl.symbol, "The member is expected to have a symbol.");
+            var links = getNodeLinks(decl);
+            if (!links.resolvedSymbol) {
+                links.resolvedSymbol = decl.symbol;
+                var declName = ts.isBinaryExpression(decl) ? decl.left : decl.name;
+                var type = ts.isElementAccessExpression(declName) ? checkExpressionCached(declName.argumentExpression) : checkComputedPropertyName(declName);
+                if (isTypeUsableAsPropertyName(type)) {
+                    var memberName = getPropertyNameFromType(type);
+                    var symbolFlags = decl.symbol.flags;
+                    var lateSymbol = lateSymbols.get(memberName);
+                    if (!lateSymbol)
+                        lateSymbols.set(memberName, lateSymbol = createSymbol(0, memberName, 4096));
+                    var earlySymbol = earlySymbols && earlySymbols.get(memberName);
+                    if (lateSymbol.flags & getExcludedSymbolFlags(symbolFlags) || earlySymbol) {
+                        var declarations = earlySymbol ? ts.concatenate(earlySymbol.declarations, lateSymbol.declarations) : lateSymbol.declarations;
+                        var name_3 = !(type.flags & 8192) && ts.unescapeLeadingUnderscores(memberName) || ts.declarationNameToString(declName);
+                        ts.forEach(declarations, function (declaration) { return error(ts.getNameOfDeclaration(declaration) || declaration, ts.Diagnostics.Property_0_was_also_declared_here, name_3); });
+                        error(declName || decl, ts.Diagnostics.Duplicate_property_0, name_3);
+                        lateSymbol = createSymbol(0, memberName, 4096);
+                    }
+                    lateSymbol.nameType = type;
+                    addDeclarationToLateBoundSymbol(lateSymbol, decl, symbolFlags);
+                    if (lateSymbol.parent) {
+                        ts.Debug.assert(lateSymbol.parent === parent, "Existing symbol parent should match new one");
+                    }
+                    else {
+                        lateSymbol.parent = parent;
+                    }
+                    return links.resolvedSymbol = lateSymbol;
+                }
+            }
+            return links.resolvedSymbol;
+        }
+        function getResolvedMembersOrExportsOfSymbol(symbol, resolutionKind) {
+            var links = getSymbolLinks(symbol);
+            if (!links[resolutionKind]) {
+                var isStatic = resolutionKind === "resolvedExports";
+                var earlySymbols = !isStatic ? symbol.members :
+                    symbol.flags & 1536 ? getExportsOfModuleWorker(symbol) :
+                        symbol.exports;
+                links[resolutionKind] = earlySymbols || emptySymbols;
+                var lateSymbols = ts.createSymbolTable();
+                for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+                    var decl = _a[_i];
+                    var members = ts.getMembersOfDeclaration(decl);
+                    if (members) {
+                        for (var _b = 0, members_5 = members; _b < members_5.length; _b++) {
+                            var member = members_5[_b];
+                            if (isStatic === ts.hasStaticModifier(member) && hasLateBindableName(member)) {
+                                lateBindMember(symbol, earlySymbols, lateSymbols, member);
+                            }
+                        }
+                    }
+                }
+                var assignments = symbol.assignmentDeclarationMembers;
+                if (assignments) {
+                    var decls = ts.arrayFrom(assignments.values());
+                    for (var _c = 0, decls_1 = decls; _c < decls_1.length; _c++) {
+                        var member = decls_1[_c];
+                        var assignmentKind = ts.getAssignmentDeclarationKind(member);
+                        var isInstanceMember = assignmentKind === 3
+                            || assignmentKind === 4
+                            || assignmentKind === 9
+                            || assignmentKind === 6;
+                        if (isStatic === !isInstanceMember && hasLateBindableName(member)) {
+                            lateBindMember(symbol, earlySymbols, lateSymbols, member);
+                        }
+                    }
+                }
+                links[resolutionKind] = combineSymbolTables(earlySymbols, lateSymbols) || emptySymbols;
+            }
+            return links[resolutionKind];
+        }
+        function getMembersOfSymbol(symbol) {
+            return symbol.flags & 6256
+                ? getResolvedMembersOrExportsOfSymbol(symbol, "resolvedMembers")
+                : symbol.members || emptySymbols;
+        }
+        function getLateBoundSymbol(symbol) {
+            if (symbol.flags & 106500 && symbol.escapedName === "__computed") {
+                var links = getSymbolLinks(symbol);
+                if (!links.lateSymbol && ts.some(symbol.declarations, hasLateBindableName)) {
+                    var parent = getMergedSymbol(symbol.parent);
+                    if (ts.some(symbol.declarations, ts.hasStaticModifier)) {
+                        getExportsOfSymbol(parent);
+                    }
+                    else {
+                        getMembersOfSymbol(parent);
+                    }
+                }
+                return links.lateSymbol || (links.lateSymbol = symbol);
+            }
+            return symbol;
+        }
+        function getTypeWithThisArgument(type, thisArgument, needApparentType) {
+            if (ts.getObjectFlags(type) & 4) {
+                var target = type.target;
+                var typeArguments = getTypeArguments(type);
+                if (ts.length(target.typeParameters) === ts.length(typeArguments)) {
+                    var ref = createTypeReference(target, ts.concatenate(typeArguments, [thisArgument || target.thisType]));
+                    return needApparentType ? getApparentType(ref) : ref;
+                }
+            }
+            else if (type.flags & 2097152) {
+                return getIntersectionType(ts.map(type.types, function (t) { return getTypeWithThisArgument(t, thisArgument, needApparentType); }));
+            }
+            return needApparentType ? getApparentType(type) : type;
+        }
+        function resolveObjectTypeMembers(type, source, typeParameters, typeArguments) {
+            var mapper;
+            var members;
+            var callSignatures;
+            var constructSignatures;
+            var stringIndexInfo;
+            var numberIndexInfo;
+            if (ts.rangeEquals(typeParameters, typeArguments, 0, typeParameters.length)) {
+                members = source.symbol ? getMembersOfSymbol(source.symbol) : ts.createSymbolTable(source.declaredProperties);
+                callSignatures = source.declaredCallSignatures;
+                constructSignatures = source.declaredConstructSignatures;
+                stringIndexInfo = source.declaredStringIndexInfo;
+                numberIndexInfo = source.declaredNumberIndexInfo;
+            }
+            else {
+                mapper = createTypeMapper(typeParameters, typeArguments);
+                members = createInstantiatedSymbolTable(source.declaredProperties, mapper, typeParameters.length === 1);
+                callSignatures = instantiateSignatures(source.declaredCallSignatures, mapper);
+                constructSignatures = instantiateSignatures(source.declaredConstructSignatures, mapper);
+                stringIndexInfo = instantiateIndexInfo(source.declaredStringIndexInfo, mapper);
+                numberIndexInfo = instantiateIndexInfo(source.declaredNumberIndexInfo, mapper);
+            }
+            var baseTypes = getBaseTypes(source);
+            if (baseTypes.length) {
+                if (source.symbol && members === getMembersOfSymbol(source.symbol)) {
+                    members = ts.createSymbolTable(source.declaredProperties);
+                }
+                setStructuredTypeMembers(type, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
+                var thisArgument = ts.lastOrUndefined(typeArguments);
+                for (var _i = 0, baseTypes_1 = baseTypes; _i < baseTypes_1.length; _i++) {
+                    var baseType = baseTypes_1[_i];
+                    var instantiatedBaseType = thisArgument ? getTypeWithThisArgument(instantiateType(baseType, mapper), thisArgument) : baseType;
+                    addInheritedMembers(members, getPropertiesOfType(instantiatedBaseType));
+                    callSignatures = ts.concatenate(callSignatures, getSignaturesOfType(instantiatedBaseType, 0));
+                    constructSignatures = ts.concatenate(constructSignatures, getSignaturesOfType(instantiatedBaseType, 1));
+                    if (!stringIndexInfo) {
+                        stringIndexInfo = instantiatedBaseType === anyType ?
+                            createIndexInfo(anyType, false) :
+                            getIndexInfoOfType(instantiatedBaseType, 0);
+                    }
+                    numberIndexInfo = numberIndexInfo || getIndexInfoOfType(instantiatedBaseType, 1);
+                }
+            }
+            setStructuredTypeMembers(type, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
+        }
+        function resolveClassOrInterfaceMembers(type) {
+            resolveObjectTypeMembers(type, resolveDeclaredMembers(type), ts.emptyArray, ts.emptyArray);
+        }
+        function resolveTypeReferenceMembers(type) {
+            var source = resolveDeclaredMembers(type.target);
+            var typeParameters = ts.concatenate(source.typeParameters, [source.thisType]);
+            var typeArguments = getTypeArguments(type);
+            var paddedTypeArguments = typeArguments.length === typeParameters.length ? typeArguments : ts.concatenate(typeArguments, [type]);
+            resolveObjectTypeMembers(type, source, typeParameters, paddedTypeArguments);
+        }
+        function createSignature(declaration, typeParameters, thisParameter, parameters, resolvedReturnType, resolvedTypePredicate, minArgumentCount, flags) {
+            var sig = new Signature(checker, flags);
+            sig.declaration = declaration;
+            sig.typeParameters = typeParameters;
+            sig.parameters = parameters;
+            sig.thisParameter = thisParameter;
+            sig.resolvedReturnType = resolvedReturnType;
+            sig.resolvedTypePredicate = resolvedTypePredicate;
+            sig.minArgumentCount = minArgumentCount;
+            sig.target = undefined;
+            sig.mapper = undefined;
+            sig.unionSignatures = undefined;
+            return sig;
+        }
+        function cloneSignature(sig) {
+            var result = createSignature(sig.declaration, sig.typeParameters, sig.thisParameter, sig.parameters, undefined, undefined, sig.minArgumentCount, sig.flags & 3);
+            result.target = sig.target;
+            result.mapper = sig.mapper;
+            result.unionSignatures = sig.unionSignatures;
+            return result;
+        }
+        function createUnionSignature(signature, unionSignatures) {
+            var result = cloneSignature(signature);
+            result.unionSignatures = unionSignatures;
+            result.target = undefined;
+            result.mapper = undefined;
+            return result;
+        }
+        function getOptionalCallSignature(signature, callChainFlags) {
+            if ((signature.flags & 12) === callChainFlags) {
+                return signature;
+            }
+            if (!signature.optionalCallSignatureCache) {
+                signature.optionalCallSignatureCache = {};
+            }
+            var key = callChainFlags === 4 ? "inner" : "outer";
+            return signature.optionalCallSignatureCache[key]
+                || (signature.optionalCallSignatureCache[key] = createOptionalCallSignature(signature, callChainFlags));
+        }
+        function createOptionalCallSignature(signature, callChainFlags) {
+            ts.Debug.assert(callChainFlags === 4 || callChainFlags === 8, "An optional call signature can either be for an inner call chain or an outer call chain, but not both.");
+            var result = cloneSignature(signature);
+            result.flags |= callChainFlags;
+            return result;
+        }
+        function getExpandedParameters(sig) {
+            if (signatureHasRestParameter(sig)) {
+                var restIndex_1 = sig.parameters.length - 1;
+                var restParameter = sig.parameters[restIndex_1];
+                var restType = getTypeOfSymbol(restParameter);
+                if (isTupleType(restType)) {
+                    var elementTypes = getTypeArguments(restType);
+                    var minLength_1 = restType.target.minLength;
+                    var tupleRestIndex_1 = restType.target.hasRestElement ? elementTypes.length - 1 : -1;
+                    var restParams = ts.map(elementTypes, function (t, i) {
+                        var name = getParameterNameAtPosition(sig, restIndex_1 + i);
+                        var checkFlags = i === tupleRestIndex_1 ? 32768 :
+                            i >= minLength_1 ? 16384 : 0;
+                        var symbol = createSymbol(1, name, checkFlags);
+                        symbol.type = i === tupleRestIndex_1 ? createArrayType(t) : t;
+                        return symbol;
+                    });
+                    return ts.concatenate(sig.parameters.slice(0, restIndex_1), restParams);
+                }
+            }
+            return sig.parameters;
+        }
+        function getDefaultConstructSignatures(classType) {
+            var baseConstructorType = getBaseConstructorTypeOfClass(classType);
+            var baseSignatures = getSignaturesOfType(baseConstructorType, 1);
+            if (baseSignatures.length === 0) {
+                return [createSignature(undefined, classType.localTypeParameters, undefined, ts.emptyArray, classType, undefined, 0, 0)];
+            }
+            var baseTypeNode = getBaseTypeNodeOfClass(classType);
+            var isJavaScript = ts.isInJSFile(baseTypeNode);
+            var typeArguments = typeArgumentsFromTypeReferenceNode(baseTypeNode);
+            var typeArgCount = ts.length(typeArguments);
+            var result = [];
+            for (var _i = 0, baseSignatures_1 = baseSignatures; _i < baseSignatures_1.length; _i++) {
+                var baseSig = baseSignatures_1[_i];
+                var minTypeArgumentCount = getMinTypeArgumentCount(baseSig.typeParameters);
+                var typeParamCount = ts.length(baseSig.typeParameters);
+                if (isJavaScript || typeArgCount >= minTypeArgumentCount && typeArgCount <= typeParamCount) {
+                    var sig = typeParamCount ? createSignatureInstantiation(baseSig, fillMissingTypeArguments(typeArguments, baseSig.typeParameters, minTypeArgumentCount, isJavaScript)) : cloneSignature(baseSig);
+                    sig.typeParameters = classType.localTypeParameters;
+                    sig.resolvedReturnType = classType;
+                    result.push(sig);
+                }
+            }
+            return result;
+        }
+        function findMatchingSignature(signatureList, signature, partialMatch, ignoreThisTypes, ignoreReturnTypes) {
+            for (var _i = 0, signatureList_1 = signatureList; _i < signatureList_1.length; _i++) {
+                var s = signatureList_1[_i];
+                if (compareSignaturesIdentical(s, signature, partialMatch, ignoreThisTypes, ignoreReturnTypes, partialMatch ? compareTypesSubtypeOf : compareTypesIdentical)) {
+                    return s;
+                }
+            }
+        }
+        function findMatchingSignatures(signatureLists, signature, listIndex) {
+            if (signature.typeParameters) {
+                if (listIndex > 0) {
+                    return undefined;
+                }
+                for (var i = 1; i < signatureLists.length; i++) {
+                    if (!findMatchingSignature(signatureLists[i], signature, false, false, false)) {
+                        return undefined;
+                    }
+                }
+                return [signature];
+            }
+            var result;
+            for (var i = 0; i < signatureLists.length; i++) {
+                var match = i === listIndex ? signature : findMatchingSignature(signatureLists[i], signature, true, false, true);
+                if (!match) {
+                    return undefined;
+                }
+                result = ts.appendIfUnique(result, match);
+            }
+            return result;
+        }
+        function getUnionSignatures(signatureLists) {
+            var result;
+            var indexWithLengthOverOne;
+            for (var i = 0; i < signatureLists.length; i++) {
+                if (signatureLists[i].length === 0)
+                    return ts.emptyArray;
+                if (signatureLists[i].length > 1) {
+                    indexWithLengthOverOne = indexWithLengthOverOne === undefined ? i : -1;
+                }
+                for (var _i = 0, _a = signatureLists[i]; _i < _a.length; _i++) {
+                    var signature = _a[_i];
+                    if (!result || !findMatchingSignature(result, signature, false, false, true)) {
+                        var unionSignatures = findMatchingSignatures(signatureLists, signature, i);
+                        if (unionSignatures) {
+                            var s = signature;
+                            if (unionSignatures.length > 1) {
+                                var thisParameter = signature.thisParameter;
+                                var firstThisParameterOfUnionSignatures = ts.forEach(unionSignatures, function (sig) { return sig.thisParameter; });
+                                if (firstThisParameterOfUnionSignatures) {
+                                    var thisType = getIntersectionType(ts.mapDefined(unionSignatures, function (sig) { return sig.thisParameter && getTypeOfSymbol(sig.thisParameter); }));
+                                    thisParameter = createSymbolWithType(firstThisParameterOfUnionSignatures, thisType);
+                                }
+                                s = createUnionSignature(signature, unionSignatures);
+                                s.thisParameter = thisParameter;
+                            }
+                            (result || (result = [])).push(s);
+                        }
+                    }
+                }
+            }
+            if (!ts.length(result) && indexWithLengthOverOne !== -1) {
+                var masterList = signatureLists[indexWithLengthOverOne !== undefined ? indexWithLengthOverOne : 0];
+                var results = masterList.slice();
+                var _loop_9 = function (signatures) {
+                    if (signatures !== masterList) {
+                        var signature_1 = signatures[0];
+                        ts.Debug.assert(!!signature_1, "getUnionSignatures bails early on empty signature lists and should not have empty lists on second pass");
+                        results = signature_1.typeParameters && ts.some(results, function (s) { return !!s.typeParameters; }) ? undefined : ts.map(results, function (sig) { return combineSignaturesOfUnionMembers(sig, signature_1); });
+                        if (!results) {
+                            return "break";
+                        }
+                    }
+                };
+                for (var _b = 0, signatureLists_1 = signatureLists; _b < signatureLists_1.length; _b++) {
+                    var signatures = signatureLists_1[_b];
+                    var state_3 = _loop_9(signatures);
+                    if (state_3 === "break")
+                        break;
+                }
+                result = results;
+            }
+            return result || ts.emptyArray;
+        }
+        function combineUnionThisParam(left, right) {
+            if (!left || !right) {
+                return left || right;
+            }
+            var thisType = getIntersectionType([getTypeOfSymbol(left), getTypeOfSymbol(right)]);
+            return createSymbolWithType(left, thisType);
+        }
+        function combineUnionParameters(left, right) {
+            var leftCount = getParameterCount(left);
+            var rightCount = getParameterCount(right);
+            var longest = leftCount >= rightCount ? left : right;
+            var shorter = longest === left ? right : left;
+            var longestCount = longest === left ? leftCount : rightCount;
+            var eitherHasEffectiveRest = (hasEffectiveRestParameter(left) || hasEffectiveRestParameter(right));
+            var needsExtraRestElement = eitherHasEffectiveRest && !hasEffectiveRestParameter(longest);
+            var params = new Array(longestCount + (needsExtraRestElement ? 1 : 0));
+            for (var i = 0; i < longestCount; i++) {
+                var longestParamType = tryGetTypeAtPosition(longest, i);
+                var shorterParamType = tryGetTypeAtPosition(shorter, i) || unknownType;
+                var unionParamType = getIntersectionType([longestParamType, shorterParamType]);
+                var isRestParam = eitherHasEffectiveRest && !needsExtraRestElement && i === (longestCount - 1);
+                var isOptional = i >= getMinArgumentCount(longest) && i >= getMinArgumentCount(shorter);
+                var leftName = i >= leftCount ? undefined : getParameterNameAtPosition(left, i);
+                var rightName = i >= rightCount ? undefined : getParameterNameAtPosition(right, i);
+                var paramName = leftName === rightName ? leftName :
+                    !leftName ? rightName :
+                        !rightName ? leftName :
+                            undefined;
+                var paramSymbol = createSymbol(1 | (isOptional && !isRestParam ? 16777216 : 0), paramName || "arg" + i);
+                paramSymbol.type = isRestParam ? createArrayType(unionParamType) : unionParamType;
+                params[i] = paramSymbol;
+            }
+            if (needsExtraRestElement) {
+                var restParamSymbol = createSymbol(1, "args");
+                restParamSymbol.type = createArrayType(getTypeAtPosition(shorter, longestCount));
+                params[longestCount] = restParamSymbol;
+            }
+            return params;
+        }
+        function combineSignaturesOfUnionMembers(left, right) {
+            var declaration = left.declaration;
+            var params = combineUnionParameters(left, right);
+            var thisParam = combineUnionThisParam(left.thisParameter, right.thisParameter);
+            var minArgCount = Math.max(left.minArgumentCount, right.minArgumentCount);
+            var result = createSignature(declaration, left.typeParameters || right.typeParameters, thisParam, params, undefined, undefined, minArgCount, (left.flags | right.flags) & 3);
+            result.unionSignatures = ts.concatenate(left.unionSignatures || [left], [right]);
+            return result;
+        }
+        function getUnionIndexInfo(types, kind) {
+            var indexTypes = [];
+            var isAnyReadonly = false;
+            for (var _i = 0, types_3 = types; _i < types_3.length; _i++) {
+                var type = types_3[_i];
+                var indexInfo = getIndexInfoOfType(getApparentType(type), kind);
+                if (!indexInfo) {
+                    return undefined;
+                }
+                indexTypes.push(indexInfo.type);
+                isAnyReadonly = isAnyReadonly || indexInfo.isReadonly;
+            }
+            return createIndexInfo(getUnionType(indexTypes, 2), isAnyReadonly);
+        }
+        function resolveUnionTypeMembers(type) {
+            var callSignatures = getUnionSignatures(ts.map(type.types, function (t) { return t === globalFunctionType ? [unknownSignature] : getSignaturesOfType(t, 0); }));
+            var constructSignatures = getUnionSignatures(ts.map(type.types, function (t) { return getSignaturesOfType(t, 1); }));
+            var stringIndexInfo = getUnionIndexInfo(type.types, 0);
+            var numberIndexInfo = getUnionIndexInfo(type.types, 1);
+            setStructuredTypeMembers(type, emptySymbols, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
+        }
+        function intersectTypes(type1, type2) {
+            return !type1 ? type2 : !type2 ? type1 : getIntersectionType([type1, type2]);
+        }
+        function intersectIndexInfos(info1, info2) {
+            return !info1 ? info2 : !info2 ? info1 : createIndexInfo(getIntersectionType([info1.type, info2.type]), info1.isReadonly && info2.isReadonly);
+        }
+        function unionSpreadIndexInfos(info1, info2) {
+            return info1 && info2 && createIndexInfo(getUnionType([info1.type, info2.type]), info1.isReadonly || info2.isReadonly);
+        }
+        function findMixins(types) {
+            var constructorTypeCount = ts.countWhere(types, function (t) { return getSignaturesOfType(t, 1).length > 0; });
+            var mixinFlags = ts.map(types, isMixinConstructorType);
+            if (constructorTypeCount > 0 && constructorTypeCount === ts.countWhere(mixinFlags, function (b) { return b; })) {
+                var firstMixinIndex = mixinFlags.indexOf(true);
+                mixinFlags[firstMixinIndex] = false;
+            }
+            return mixinFlags;
+        }
+        function includeMixinType(type, types, mixinFlags, index) {
+            var mixedTypes = [];
+            for (var i = 0; i < types.length; i++) {
+                if (i === index) {
+                    mixedTypes.push(type);
+                }
+                else if (mixinFlags[i]) {
+                    mixedTypes.push(getReturnTypeOfSignature(getSignaturesOfType(types[i], 1)[0]));
+                }
+            }
+            return getIntersectionType(mixedTypes);
+        }
+        function resolveIntersectionTypeMembers(type) {
+            var callSignatures;
+            var constructSignatures;
+            var stringIndexInfo;
+            var numberIndexInfo;
+            var types = type.types;
+            var mixinFlags = findMixins(types);
+            var mixinCount = ts.countWhere(mixinFlags, function (b) { return b; });
+            var _loop_10 = function (i) {
+                var t = type.types[i];
+                if (!mixinFlags[i]) {
+                    var signatures = getSignaturesOfType(t, 1);
+                    if (signatures.length && mixinCount > 0) {
+                        signatures = ts.map(signatures, function (s) {
+                            var clone = cloneSignature(s);
+                            clone.resolvedReturnType = includeMixinType(getReturnTypeOfSignature(s), types, mixinFlags, i);
+                            return clone;
+                        });
+                    }
+                    constructSignatures = appendSignatures(constructSignatures, signatures);
+                }
+                callSignatures = appendSignatures(callSignatures, getSignaturesOfType(t, 0));
+                stringIndexInfo = intersectIndexInfos(stringIndexInfo, getIndexInfoOfType(t, 0));
+                numberIndexInfo = intersectIndexInfos(numberIndexInfo, getIndexInfoOfType(t, 1));
+            };
+            for (var i = 0; i < types.length; i++) {
+                _loop_10(i);
+            }
+            setStructuredTypeMembers(type, emptySymbols, callSignatures || ts.emptyArray, constructSignatures || ts.emptyArray, stringIndexInfo, numberIndexInfo);
+        }
+        function appendSignatures(signatures, newSignatures) {
+            var _loop_11 = function (sig) {
+                if (!signatures || ts.every(signatures, function (s) { return !compareSignaturesIdentical(s, sig, false, false, false, compareTypesIdentical); })) {
+                    signatures = ts.append(signatures, sig);
+                }
+            };
+            for (var _i = 0, newSignatures_1 = newSignatures; _i < newSignatures_1.length; _i++) {
+                var sig = newSignatures_1[_i];
+                _loop_11(sig);
+            }
+            return signatures;
+        }
+        function resolveAnonymousTypeMembers(type) {
+            var symbol = getMergedSymbol(type.symbol);
+            if (type.target) {
+                setStructuredTypeMembers(type, emptySymbols, ts.emptyArray, ts.emptyArray, undefined, undefined);
+                var members = createInstantiatedSymbolTable(getPropertiesOfObjectType(type.target), type.mapper, false);
+                var callSignatures = instantiateSignatures(getSignaturesOfType(type.target, 0), type.mapper);
+                var constructSignatures = instantiateSignatures(getSignaturesOfType(type.target, 1), type.mapper);
+                var stringIndexInfo = instantiateIndexInfo(getIndexInfoOfType(type.target, 0), type.mapper);
+                var numberIndexInfo = instantiateIndexInfo(getIndexInfoOfType(type.target, 1), type.mapper);
+                setStructuredTypeMembers(type, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
+            }
+            else if (symbol.flags & 2048) {
+                setStructuredTypeMembers(type, emptySymbols, ts.emptyArray, ts.emptyArray, undefined, undefined);
+                var members = getMembersOfSymbol(symbol);
+                var callSignatures = getSignaturesOfSymbol(members.get("__call"));
+                var constructSignatures = getSignaturesOfSymbol(members.get("__new"));
+                var stringIndexInfo = getIndexInfoOfSymbol(symbol, 0);
+                var numberIndexInfo = getIndexInfoOfSymbol(symbol, 1);
+                setStructuredTypeMembers(type, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
+            }
+            else {
+                var members = emptySymbols;
+                var stringIndexInfo = void 0;
+                if (symbol.exports) {
+                    members = getExportsOfSymbol(symbol);
+                    if (symbol === globalThisSymbol) {
+                        var varsOnly_1 = ts.createMap();
+                        members.forEach(function (p) {
+                            if (!(p.flags & 418)) {
+                                varsOnly_1.set(p.escapedName, p);
+                            }
+                        });
+                        members = varsOnly_1;
+                    }
+                }
+                setStructuredTypeMembers(type, members, ts.emptyArray, ts.emptyArray, undefined, undefined);
+                if (symbol.flags & 32) {
+                    var classType = getDeclaredTypeOfClassOrInterface(symbol);
+                    var baseConstructorType = getBaseConstructorTypeOfClass(classType);
+                    if (baseConstructorType.flags & (524288 | 2097152 | 8650752)) {
+                        members = ts.createSymbolTable(getNamedMembers(members));
+                        addInheritedMembers(members, getPropertiesOfType(baseConstructorType));
+                    }
+                    else if (baseConstructorType === anyType) {
+                        stringIndexInfo = createIndexInfo(anyType, false);
+                    }
+                }
+                var numberIndexInfo = symbol.flags & 384 && (getDeclaredTypeOfSymbol(symbol).flags & 32 ||
+                    ts.some(type.properties, function (prop) { return !!(getTypeOfSymbol(prop).flags & 296); })) ? enumNumberIndexInfo : undefined;
+                setStructuredTypeMembers(type, members, ts.emptyArray, ts.emptyArray, stringIndexInfo, numberIndexInfo);
+                if (symbol.flags & (16 | 8192)) {
+                    type.callSignatures = getSignaturesOfSymbol(symbol);
+                }
+                if (symbol.flags & 32) {
+                    var classType_1 = getDeclaredTypeOfClassOrInterface(symbol);
+                    var constructSignatures = symbol.members ? getSignaturesOfSymbol(symbol.members.get("__constructor")) : ts.emptyArray;
+                    if (symbol.flags & 16) {
+                        constructSignatures = ts.addRange(constructSignatures.slice(), ts.mapDefined(type.callSignatures, function (sig) { return isJSConstructor(sig.declaration) ?
+                            createSignature(sig.declaration, sig.typeParameters, sig.thisParameter, sig.parameters, classType_1, undefined, sig.minArgumentCount, sig.flags & 3) :
+                            undefined; }));
+                    }
+                    if (!constructSignatures.length) {
+                        constructSignatures = getDefaultConstructSignatures(classType_1);
+                    }
+                    type.constructSignatures = constructSignatures;
+                }
+            }
+        }
+        function resolveReverseMappedTypeMembers(type) {
+            var indexInfo = getIndexInfoOfType(type.source, 0);
+            var modifiers = getMappedTypeModifiers(type.mappedType);
+            var readonlyMask = modifiers & 1 ? false : true;
+            var optionalMask = modifiers & 4 ? 0 : 16777216;
+            var stringIndexInfo = indexInfo && createIndexInfo(inferReverseMappedType(indexInfo.type, type.mappedType, type.constraintType), readonlyMask && indexInfo.isReadonly);
+            var members = ts.createSymbolTable();
+            for (var _i = 0, _a = getPropertiesOfType(type.source); _i < _a.length; _i++) {
+                var prop = _a[_i];
+                var checkFlags = 8192 | (readonlyMask && isReadonlySymbol(prop) ? 8 : 0);
+                var inferredProp = createSymbol(4 | prop.flags & optionalMask, prop.escapedName, checkFlags);
+                inferredProp.declarations = prop.declarations;
+                inferredProp.nameType = getSymbolLinks(prop).nameType;
+                inferredProp.propertyType = getTypeOfSymbol(prop);
+                inferredProp.mappedType = type.mappedType;
+                inferredProp.constraintType = type.constraintType;
+                members.set(prop.escapedName, inferredProp);
+            }
+            setStructuredTypeMembers(type, members, ts.emptyArray, ts.emptyArray, stringIndexInfo, undefined);
+        }
+        function getLowerBoundOfKeyType(type) {
+            if (type.flags & (1 | 131068)) {
+                return type;
+            }
+            if (type.flags & 4194304) {
+                return getIndexType(getApparentType(type.type));
+            }
+            if (type.flags & 16777216) {
+                if (type.root.isDistributive) {
+                    var checkType = type.checkType;
+                    var constraint = getLowerBoundOfKeyType(checkType);
+                    if (constraint !== checkType) {
+                        return getConditionalTypeInstantiation(type, prependTypeMapping(type.root.checkType, constraint, type.mapper));
+                    }
+                }
+                return type;
+            }
+            if (type.flags & 1048576) {
+                return getUnionType(ts.sameMap(type.types, getLowerBoundOfKeyType));
+            }
+            if (type.flags & 2097152) {
+                return getIntersectionType(ts.sameMap(type.types, getLowerBoundOfKeyType));
+            }
+            return neverType;
+        }
+        function resolveMappedTypeMembers(type) {
+            var members = ts.createSymbolTable();
+            var stringIndexInfo;
+            var numberIndexInfo;
+            setStructuredTypeMembers(type, emptySymbols, ts.emptyArray, ts.emptyArray, undefined, undefined);
+            var typeParameter = getTypeParameterFromMappedType(type);
+            var constraintType = getConstraintTypeFromMappedType(type);
+            var templateType = getTemplateTypeFromMappedType(type.target || type);
+            var modifiersType = getApparentType(getModifiersTypeFromMappedType(type));
+            var templateModifiers = getMappedTypeModifiers(type);
+            var include = keyofStringsOnly ? 128 : 8576;
+            if (isMappedTypeWithKeyofConstraintDeclaration(type)) {
+                for (var _i = 0, _a = getPropertiesOfType(modifiersType); _i < _a.length; _i++) {
+                    var prop = _a[_i];
+                    addMemberForKeyType(getLiteralTypeFromProperty(prop, include));
+                }
+                if (modifiersType.flags & 1 || getIndexInfoOfType(modifiersType, 0)) {
+                    addMemberForKeyType(stringType);
+                }
+                if (!keyofStringsOnly && getIndexInfoOfType(modifiersType, 1)) {
+                    addMemberForKeyType(numberType);
+                }
+            }
+            else {
+                forEachType(getLowerBoundOfKeyType(constraintType), addMemberForKeyType);
+            }
+            setStructuredTypeMembers(type, members, ts.emptyArray, ts.emptyArray, stringIndexInfo, numberIndexInfo);
+            function addMemberForKeyType(t) {
+                var templateMapper = appendTypeMapping(type.mapper, typeParameter, t);
+                if (isTypeUsableAsPropertyName(t)) {
+                    var propName = getPropertyNameFromType(t);
+                    var modifiersProp = getPropertyOfType(modifiersType, propName);
+                    var isOptional = !!(templateModifiers & 4 ||
+                        !(templateModifiers & 8) && modifiersProp && modifiersProp.flags & 16777216);
+                    var isReadonly = !!(templateModifiers & 1 ||
+                        !(templateModifiers & 2) && modifiersProp && isReadonlySymbol(modifiersProp));
+                    var stripOptional = strictNullChecks && !isOptional && modifiersProp && modifiersProp.flags & 16777216;
+                    var prop = createSymbol(4 | (isOptional ? 16777216 : 0), propName, 262144 | (isReadonly ? 8 : 0) | (stripOptional ? 524288 : 0));
+                    prop.mappedType = type;
+                    prop.mapper = templateMapper;
+                    if (modifiersProp) {
+                        prop.syntheticOrigin = modifiersProp;
+                        prop.declarations = modifiersProp.declarations;
+                    }
+                    prop.nameType = t;
+                    members.set(propName, prop);
+                }
+                else if (t.flags & (1 | 4 | 8 | 32)) {
+                    var propType = instantiateType(templateType, templateMapper);
+                    if (t.flags & (1 | 4)) {
+                        stringIndexInfo = createIndexInfo(propType, !!(templateModifiers & 1));
+                    }
+                    else {
+                        numberIndexInfo = createIndexInfo(numberIndexInfo ? getUnionType([numberIndexInfo.type, propType]) : propType, !!(templateModifiers & 1));
+                    }
+                }
+            }
+        }
+        function getTypeOfMappedSymbol(symbol) {
+            if (!symbol.type) {
+                if (!pushTypeResolution(symbol, 0)) {
+                    return errorType;
+                }
+                var templateType = getTemplateTypeFromMappedType(symbol.mappedType.target || symbol.mappedType);
+                var propType = instantiateType(templateType, symbol.mapper);
+                var type = strictNullChecks && symbol.flags & 16777216 && !maybeTypeOfKind(propType, 32768 | 16384) ? getOptionalType(propType) :
+                    symbol.checkFlags & 524288 ? getTypeWithFacts(propType, 524288) :
+                        propType;
+                if (!popTypeResolution()) {
+                    error(currentNode, ts.Diagnostics.Type_of_property_0_circularly_references_itself_in_mapped_type_1, symbolToString(symbol), typeToString(symbol.mappedType));
+                    type = errorType;
+                }
+                symbol.type = type;
+                symbol.mapper = undefined;
+            }
+            return symbol.type;
+        }
+        function getTypeParameterFromMappedType(type) {
+            return type.typeParameter ||
+                (type.typeParameter = getDeclaredTypeOfTypeParameter(getSymbolOfNode(type.declaration.typeParameter)));
+        }
+        function getConstraintTypeFromMappedType(type) {
+            return type.constraintType ||
+                (type.constraintType = getConstraintOfTypeParameter(getTypeParameterFromMappedType(type)) || errorType);
+        }
+        function getTemplateTypeFromMappedType(type) {
+            return type.templateType ||
+                (type.templateType = type.declaration.type ?
+                    instantiateType(addOptionality(getTypeFromTypeNode(type.declaration.type), !!(getMappedTypeModifiers(type) & 4)), type.mapper) :
+                    errorType);
+        }
+        function getConstraintDeclarationForMappedType(type) {
+            return ts.getEffectiveConstraintOfTypeParameter(type.declaration.typeParameter);
+        }
+        function isMappedTypeWithKeyofConstraintDeclaration(type) {
+            var constraintDeclaration = getConstraintDeclarationForMappedType(type);
+            return constraintDeclaration.kind === 184 &&
+                constraintDeclaration.operator === 134;
+        }
+        function getModifiersTypeFromMappedType(type) {
+            if (!type.modifiersType) {
+                if (isMappedTypeWithKeyofConstraintDeclaration(type)) {
+                    type.modifiersType = instantiateType(getTypeFromTypeNode(getConstraintDeclarationForMappedType(type).type), type.mapper);
+                }
+                else {
+                    var declaredType = getTypeFromMappedTypeNode(type.declaration);
+                    var constraint = getConstraintTypeFromMappedType(declaredType);
+                    var extendedConstraint = constraint && constraint.flags & 262144 ? getConstraintOfTypeParameter(constraint) : constraint;
+                    type.modifiersType = extendedConstraint && extendedConstraint.flags & 4194304 ? instantiateType(extendedConstraint.type, type.mapper) : unknownType;
+                }
+            }
+            return type.modifiersType;
+        }
+        function getMappedTypeModifiers(type) {
+            var declaration = type.declaration;
+            return (declaration.readonlyToken ? declaration.readonlyToken.kind === 40 ? 2 : 1 : 0) |
+                (declaration.questionToken ? declaration.questionToken.kind === 40 ? 8 : 4 : 0);
+        }
+        function getMappedTypeOptionality(type) {
+            var modifiers = getMappedTypeModifiers(type);
+            return modifiers & 8 ? -1 : modifiers & 4 ? 1 : 0;
+        }
+        function getCombinedMappedTypeOptionality(type) {
+            var optionality = getMappedTypeOptionality(type);
+            var modifiersType = getModifiersTypeFromMappedType(type);
+            return optionality || (isGenericMappedType(modifiersType) ? getMappedTypeOptionality(modifiersType) : 0);
+        }
+        function isPartialMappedType(type) {
+            return !!(ts.getObjectFlags(type) & 32 && getMappedTypeModifiers(type) & 4);
+        }
+        function isGenericMappedType(type) {
+            return !!(ts.getObjectFlags(type) & 32) && isGenericIndexType(getConstraintTypeFromMappedType(type));
+        }
+        function resolveStructuredTypeMembers(type) {
+            if (!type.members) {
+                if (type.flags & 524288) {
+                    if (type.objectFlags & 4) {
+                        resolveTypeReferenceMembers(type);
+                    }
+                    else if (type.objectFlags & 3) {
+                        resolveClassOrInterfaceMembers(type);
+                    }
+                    else if (type.objectFlags & 2048) {
+                        resolveReverseMappedTypeMembers(type);
+                    }
+                    else if (type.objectFlags & 16) {
+                        resolveAnonymousTypeMembers(type);
+                    }
+                    else if (type.objectFlags & 32) {
+                        resolveMappedTypeMembers(type);
+                    }
+                }
+                else if (type.flags & 1048576) {
+                    resolveUnionTypeMembers(type);
+                }
+                else if (type.flags & 2097152) {
+                    resolveIntersectionTypeMembers(type);
+                }
+            }
+            return type;
+        }
+        function getPropertiesOfObjectType(type) {
+            if (type.flags & 524288) {
+                return resolveStructuredTypeMembers(type).properties;
+            }
+            return ts.emptyArray;
+        }
+        function getPropertyOfObjectType(type, name) {
+            if (type.flags & 524288) {
+                var resolved = resolveStructuredTypeMembers(type);
+                var symbol = resolved.members.get(name);
+                if (symbol && symbolIsValue(symbol)) {
+                    return symbol;
+                }
+            }
+        }
+        function getPropertiesOfUnionOrIntersectionType(type) {
+            if (!type.resolvedProperties) {
+                var members = ts.createSymbolTable();
+                for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
+                    var current = _a[_i];
+                    for (var _b = 0, _c = getPropertiesOfType(current); _b < _c.length; _b++) {
+                        var prop = _c[_b];
+                        if (!members.has(prop.escapedName)) {
+                            var combinedProp = getPropertyOfUnionOrIntersectionType(type, prop.escapedName);
+                            if (combinedProp) {
+                                members.set(prop.escapedName, combinedProp);
+                            }
+                        }
+                    }
+                    if (type.flags & 1048576 && !getIndexInfoOfType(current, 0) && !getIndexInfoOfType(current, 1)) {
+                        break;
+                    }
+                }
+                type.resolvedProperties = getNamedMembers(members);
+            }
+            return type.resolvedProperties;
+        }
+        function getPropertiesOfType(type) {
+            type = getReducedApparentType(type);
+            return type.flags & 3145728 ?
+                getPropertiesOfUnionOrIntersectionType(type) :
+                getPropertiesOfObjectType(type);
+        }
+        function isTypeInvalidDueToUnionDiscriminant(contextualType, obj) {
+            var list = obj.properties;
+            return list.some(function (property) {
+                var nameType = property.name && getLiteralTypeFromPropertyName(property.name);
+                var name = nameType && isTypeUsableAsPropertyName(nameType) ? getPropertyNameFromType(nameType) : undefined;
+                var expected = name === undefined ? undefined : getTypeOfPropertyOfType(contextualType, name);
+                return !!expected && isLiteralType(expected) && !isTypeAssignableTo(getTypeOfNode(property), expected);
+            });
+        }
+        function getAllPossiblePropertiesOfTypes(types) {
+            var unionType = getUnionType(types);
+            if (!(unionType.flags & 1048576)) {
+                return getAugmentedPropertiesOfType(unionType);
+            }
+            var props = ts.createSymbolTable();
+            for (var _i = 0, types_4 = types; _i < types_4.length; _i++) {
+                var memberType = types_4[_i];
+                for (var _a = 0, _b = getAugmentedPropertiesOfType(memberType); _a < _b.length; _a++) {
+                    var escapedName = _b[_a].escapedName;
+                    if (!props.has(escapedName)) {
+                        var prop = createUnionOrIntersectionProperty(unionType, escapedName);
+                        if (prop)
+                            props.set(escapedName, prop);
+                    }
+                }
+            }
+            return ts.arrayFrom(props.values());
+        }
+        function getConstraintOfType(type) {
+            return type.flags & 262144 ? getConstraintOfTypeParameter(type) :
+                type.flags & 8388608 ? getConstraintOfIndexedAccess(type) :
+                    type.flags & 16777216 ? getConstraintOfConditionalType(type) :
+                        getBaseConstraintOfType(type);
+        }
+        function getConstraintOfTypeParameter(typeParameter) {
+            return hasNonCircularBaseConstraint(typeParameter) ? getConstraintFromTypeParameter(typeParameter) : undefined;
+        }
+        function getConstraintOfIndexedAccess(type) {
+            return hasNonCircularBaseConstraint(type) ? getConstraintFromIndexedAccess(type) : undefined;
+        }
+        function getSimplifiedTypeOrConstraint(type) {
+            var simplified = getSimplifiedType(type, false);
+            return simplified !== type ? simplified : getConstraintOfType(type);
+        }
+        function getConstraintFromIndexedAccess(type) {
+            var indexConstraint = getSimplifiedTypeOrConstraint(type.indexType);
+            if (indexConstraint && indexConstraint !== type.indexType) {
+                var indexedAccess = getIndexedAccessTypeOrUndefined(type.objectType, indexConstraint);
+                if (indexedAccess) {
+                    return indexedAccess;
+                }
+            }
+            var objectConstraint = getSimplifiedTypeOrConstraint(type.objectType);
+            if (objectConstraint && objectConstraint !== type.objectType) {
+                return getIndexedAccessTypeOrUndefined(objectConstraint, type.indexType);
+            }
+            return undefined;
+        }
+        function getDefaultConstraintOfConditionalType(type) {
+            if (!type.resolvedDefaultConstraint) {
+                var trueConstraint = getInferredTrueTypeFromConditionalType(type);
+                var falseConstraint = getFalseTypeFromConditionalType(type);
+                type.resolvedDefaultConstraint = isTypeAny(trueConstraint) ? falseConstraint : isTypeAny(falseConstraint) ? trueConstraint : getUnionType([trueConstraint, falseConstraint]);
+            }
+            return type.resolvedDefaultConstraint;
+        }
+        function getConstraintOfDistributiveConditionalType(type) {
+            if (type.root.isDistributive && type.restrictiveInstantiation !== type) {
+                var simplified = getSimplifiedType(type.checkType, false);
+                var constraint = simplified === type.checkType ? getConstraintOfType(simplified) : simplified;
+                if (constraint && constraint !== type.checkType) {
+                    var instantiated = getConditionalTypeInstantiation(type, prependTypeMapping(type.root.checkType, constraint, type.mapper));
+                    if (!(instantiated.flags & 131072)) {
+                        return instantiated;
+                    }
+                }
+            }
+            return undefined;
+        }
+        function getConstraintFromConditionalType(type) {
+            return getConstraintOfDistributiveConditionalType(type) || getDefaultConstraintOfConditionalType(type);
+        }
+        function getConstraintOfConditionalType(type) {
+            return hasNonCircularBaseConstraint(type) ? getConstraintFromConditionalType(type) : undefined;
+        }
+        function getEffectiveConstraintOfIntersection(types, targetIsUnion) {
+            var constraints;
+            var hasDisjointDomainType = false;
+            for (var _i = 0, types_5 = types; _i < types_5.length; _i++) {
+                var t = types_5[_i];
+                if (t.flags & 63176704) {
+                    var constraint = getConstraintOfType(t);
+                    while (constraint && constraint.flags & (262144 | 4194304 | 16777216)) {
+                        constraint = getConstraintOfType(constraint);
+                    }
+                    if (constraint) {
+                        constraints = ts.append(constraints, constraint);
+                        if (targetIsUnion) {
+                            constraints = ts.append(constraints, t);
+                        }
+                    }
+                }
+                else if (t.flags & 67238908) {
+                    hasDisjointDomainType = true;
+                }
+            }
+            if (constraints && (targetIsUnion || hasDisjointDomainType)) {
+                if (hasDisjointDomainType) {
+                    for (var _a = 0, types_6 = types; _a < types_6.length; _a++) {
+                        var t = types_6[_a];
+                        if (t.flags & 67238908) {
+                            constraints = ts.append(constraints, t);
+                        }
+                    }
+                }
+                return getIntersectionType(constraints);
+            }
+            return undefined;
+        }
+        function getBaseConstraintOfType(type) {
+            if (type.flags & (58982400 | 3145728)) {
+                var constraint = getResolvedBaseConstraint(type);
+                return constraint !== noConstraintType && constraint !== circularConstraintType ? constraint : undefined;
+            }
+            return type.flags & 4194304 ? keyofConstraintType : undefined;
+        }
+        function getBaseConstraintOrType(type) {
+            return getBaseConstraintOfType(type) || type;
+        }
+        function hasNonCircularBaseConstraint(type) {
+            return getResolvedBaseConstraint(type) !== circularConstraintType;
+        }
+        function getResolvedBaseConstraint(type) {
+            var nonTerminating = false;
+            return type.resolvedBaseConstraint ||
+                (type.resolvedBaseConstraint = getTypeWithThisArgument(getImmediateBaseConstraint(type), type));
+            function getImmediateBaseConstraint(t) {
+                if (!t.immediateBaseConstraint) {
+                    if (!pushTypeResolution(t, 4)) {
+                        return circularConstraintType;
+                    }
+                    if (constraintDepth >= 50) {
+                        error(currentNode, ts.Diagnostics.Type_instantiation_is_excessively_deep_and_possibly_infinite);
+                        nonTerminating = true;
+                        return t.immediateBaseConstraint = noConstraintType;
+                    }
+                    constraintDepth++;
+                    var result = computeBaseConstraint(getSimplifiedType(t, false));
+                    constraintDepth--;
+                    if (!popTypeResolution()) {
+                        if (t.flags & 262144) {
+                            var errorNode = getConstraintDeclaration(t);
+                            if (errorNode) {
+                                var diagnostic = error(errorNode, ts.Diagnostics.Type_parameter_0_has_a_circular_constraint, typeToString(t));
+                                if (currentNode && !ts.isNodeDescendantOf(errorNode, currentNode) && !ts.isNodeDescendantOf(currentNode, errorNode)) {
+                                    ts.addRelatedInfo(diagnostic, ts.createDiagnosticForNode(currentNode, ts.Diagnostics.Circularity_originates_in_type_at_this_location));
+                                }
+                            }
+                        }
+                        result = circularConstraintType;
+                    }
+                    if (nonTerminating) {
+                        result = circularConstraintType;
+                    }
+                    t.immediateBaseConstraint = result || noConstraintType;
+                }
+                return t.immediateBaseConstraint;
+            }
+            function getBaseConstraint(t) {
+                var c = getImmediateBaseConstraint(t);
+                return c !== noConstraintType && c !== circularConstraintType ? c : undefined;
+            }
+            function computeBaseConstraint(t) {
+                if (t.flags & 262144) {
+                    var constraint = getConstraintFromTypeParameter(t);
+                    return t.isThisType || !constraint ?
+                        constraint :
+                        getBaseConstraint(constraint);
+                }
+                if (t.flags & 3145728) {
+                    var types = t.types;
+                    var baseTypes = [];
+                    for (var _i = 0, types_7 = types; _i < types_7.length; _i++) {
+                        var type_2 = types_7[_i];
+                        var baseType = getBaseConstraint(type_2);
+                        if (baseType) {
+                            baseTypes.push(baseType);
+                        }
+                    }
+                    return t.flags & 1048576 && baseTypes.length === types.length ? getUnionType(baseTypes) :
+                        t.flags & 2097152 && baseTypes.length ? getIntersectionType(baseTypes) :
+                            undefined;
+                }
+                if (t.flags & 4194304) {
+                    return keyofConstraintType;
+                }
+                if (t.flags & 8388608) {
+                    var baseObjectType = getBaseConstraint(t.objectType);
+                    var baseIndexType = getBaseConstraint(t.indexType);
+                    var baseIndexedAccess = baseObjectType && baseIndexType && getIndexedAccessTypeOrUndefined(baseObjectType, baseIndexType);
+                    return baseIndexedAccess && getBaseConstraint(baseIndexedAccess);
+                }
+                if (t.flags & 16777216) {
+                    var constraint = getConstraintFromConditionalType(t);
+                    constraintDepth++;
+                    var result = constraint && getBaseConstraint(constraint);
+                    constraintDepth--;
+                    return result;
+                }
+                if (t.flags & 33554432) {
+                    return getBaseConstraint(t.substitute);
+                }
+                return t;
+            }
+        }
+        function getApparentTypeOfIntersectionType(type) {
+            return type.resolvedApparentType || (type.resolvedApparentType = getTypeWithThisArgument(type, type, true));
+        }
+        function getResolvedTypeParameterDefault(typeParameter) {
+            if (!typeParameter.default) {
+                if (typeParameter.target) {
+                    var targetDefault = getResolvedTypeParameterDefault(typeParameter.target);
+                    typeParameter.default = targetDefault ? instantiateType(targetDefault, typeParameter.mapper) : noConstraintType;
+                }
+                else {
+                    typeParameter.default = resolvingDefaultType;
+                    var defaultDeclaration = typeParameter.symbol && ts.forEach(typeParameter.symbol.declarations, function (decl) { return ts.isTypeParameterDeclaration(decl) && decl.default; });
+                    var defaultType = defaultDeclaration ? getTypeFromTypeNode(defaultDeclaration) : noConstraintType;
+                    if (typeParameter.default === resolvingDefaultType) {
+                        typeParameter.default = defaultType;
+                    }
+                }
+            }
+            else if (typeParameter.default === resolvingDefaultType) {
+                typeParameter.default = circularConstraintType;
+            }
+            return typeParameter.default;
+        }
+        function getDefaultFromTypeParameter(typeParameter) {
+            var defaultType = getResolvedTypeParameterDefault(typeParameter);
+            return defaultType !== noConstraintType && defaultType !== circularConstraintType ? defaultType : undefined;
+        }
+        function hasNonCircularTypeParameterDefault(typeParameter) {
+            return getResolvedTypeParameterDefault(typeParameter) !== circularConstraintType;
+        }
+        function hasTypeParameterDefault(typeParameter) {
+            return !!(typeParameter.symbol && ts.forEach(typeParameter.symbol.declarations, function (decl) { return ts.isTypeParameterDeclaration(decl) && decl.default; }));
+        }
+        function getApparentTypeOfMappedType(type) {
+            return type.resolvedApparentType || (type.resolvedApparentType = getResolvedApparentTypeOfMappedType(type));
+        }
+        function getResolvedApparentTypeOfMappedType(type) {
+            var typeVariable = getHomomorphicTypeVariable(type);
+            if (typeVariable) {
+                var constraint = getConstraintOfTypeParameter(typeVariable);
+                if (constraint && (isArrayType(constraint) || isTupleType(constraint))) {
+                    return instantiateType(type, prependTypeMapping(typeVariable, constraint, type.mapper));
+                }
+            }
+            return type;
+        }
+        function getApparentType(type) {
+            var t = type.flags & 63176704 ? getBaseConstraintOfType(type) || unknownType : type;
+            return ts.getObjectFlags(t) & 32 ? getApparentTypeOfMappedType(t) :
+                t.flags & 2097152 ? getApparentTypeOfIntersectionType(t) :
+                    t.flags & 132 ? globalStringType :
+                        t.flags & 296 ? globalNumberType :
+                            t.flags & 2112 ? getGlobalBigIntType(languageVersion >= 7) :
+                                t.flags & 528 ? globalBooleanType :
+                                    t.flags & 12288 ? getGlobalESSymbolType(languageVersion >= 2) :
+                                        t.flags & 67108864 ? emptyObjectType :
+                                            t.flags & 4194304 ? keyofConstraintType :
+                                                t.flags & 2 && !strictNullChecks ? emptyObjectType :
+                                                    t;
+        }
+        function getReducedApparentType(type) {
+            return getReducedType(getApparentType(getReducedType(type)));
+        }
+        function createUnionOrIntersectionProperty(containingType, name) {
+            var singleProp;
+            var propSet;
+            var indexTypes;
+            var isUnion = containingType.flags & 1048576;
+            var optionalFlag = isUnion ? 0 : 16777216;
+            var syntheticFlag = 4;
+            var checkFlags = 0;
+            for (var _i = 0, _a = containingType.types; _i < _a.length; _i++) {
+                var current = _a[_i];
+                var type = getApparentType(current);
+                if (!(type === errorType || type.flags & 131072)) {
+                    var prop = getPropertyOfType(type, name);
+                    var modifiers = prop ? ts.getDeclarationModifierFlagsFromSymbol(prop) : 0;
+                    if (prop) {
+                        if (isUnion) {
+                            optionalFlag |= (prop.flags & 16777216);
+                        }
+                        else {
+                            optionalFlag &= prop.flags;
+                        }
+                        if (!singleProp) {
+                            singleProp = prop;
+                        }
+                        else if (prop !== singleProp) {
+                            if (!propSet) {
+                                propSet = ts.createMap();
+                                propSet.set("" + getSymbolId(singleProp), singleProp);
+                            }
+                            var id = "" + getSymbolId(prop);
+                            if (!propSet.has(id)) {
+                                propSet.set(id, prop);
+                            }
+                        }
+                        checkFlags |= (isReadonlySymbol(prop) ? 8 : 0) |
+                            (!(modifiers & 24) ? 256 : 0) |
+                            (modifiers & 16 ? 512 : 0) |
+                            (modifiers & 8 ? 1024 : 0) |
+                            (modifiers & 32 ? 2048 : 0);
+                        if (!isPrototypeProperty(prop)) {
+                            syntheticFlag = 2;
+                        }
+                    }
+                    else if (isUnion) {
+                        var indexInfo = !isLateBoundName(name) && (isNumericLiteralName(name) && getIndexInfoOfType(type, 1) || getIndexInfoOfType(type, 0));
+                        if (indexInfo) {
+                            checkFlags |= 32 | (indexInfo.isReadonly ? 8 : 0);
+                            indexTypes = ts.append(indexTypes, isTupleType(type) ? getRestTypeOfTupleType(type) || undefinedType : indexInfo.type);
+                        }
+                        else if (isObjectLiteralType(type)) {
+                            checkFlags |= 32;
+                            indexTypes = ts.append(indexTypes, undefinedType);
+                        }
+                        else {
+                            checkFlags |= 16;
+                        }
+                    }
+                }
+            }
+            if (!singleProp || isUnion && (propSet || checkFlags & 48) && checkFlags & (1024 | 512)) {
+                return undefined;
+            }
+            if (!propSet && !(checkFlags & 16) && !indexTypes) {
+                return singleProp;
+            }
+            var props = propSet ? ts.arrayFrom(propSet.values()) : [singleProp];
+            var declarations;
+            var firstType;
+            var nameType;
+            var propTypes = [];
+            var firstValueDeclaration;
+            var hasNonUniformValueDeclaration = false;
+            for (var _b = 0, props_1 = props; _b < props_1.length; _b++) {
+                var prop = props_1[_b];
+                if (!firstValueDeclaration) {
+                    firstValueDeclaration = prop.valueDeclaration;
+                }
+                else if (prop.valueDeclaration && prop.valueDeclaration !== firstValueDeclaration) {
+                    hasNonUniformValueDeclaration = true;
+                }
+                declarations = ts.addRange(declarations, prop.declarations);
+                var type = getTypeOfSymbol(prop);
+                if (!firstType) {
+                    firstType = type;
+                    nameType = getSymbolLinks(prop).nameType;
+                }
+                else if (type !== firstType) {
+                    checkFlags |= 64;
+                }
+                if (isLiteralType(type)) {
+                    checkFlags |= 128;
+                }
+                if (type.flags & 131072) {
+                    checkFlags |= 131072;
+                }
+                propTypes.push(type);
+            }
+            ts.addRange(propTypes, indexTypes);
+            var result = createSymbol(4 | optionalFlag, name, syntheticFlag | checkFlags);
+            result.containingType = containingType;
+            if (!hasNonUniformValueDeclaration && firstValueDeclaration) {
+                result.valueDeclaration = firstValueDeclaration;
+                if (firstValueDeclaration.symbol.parent) {
+                    result.parent = firstValueDeclaration.symbol.parent;
+                }
+            }
+            result.declarations = declarations;
+            result.nameType = nameType;
+            if (propTypes.length > 2) {
+                result.checkFlags |= 65536;
+                result.deferralParent = containingType;
+                result.deferralConstituents = propTypes;
+            }
+            else {
+                result.type = isUnion ? getUnionType(propTypes) : getIntersectionType(propTypes);
+            }
+            return result;
+        }
+        function getUnionOrIntersectionProperty(type, name) {
+            var properties = type.propertyCache || (type.propertyCache = ts.createSymbolTable());
+            var property = properties.get(name);
+            if (!property) {
+                property = createUnionOrIntersectionProperty(type, name);
+                if (property) {
+                    properties.set(name, property);
+                }
+            }
+            return property;
+        }
+        function getPropertyOfUnionOrIntersectionType(type, name) {
+            var property = getUnionOrIntersectionProperty(type, name);
+            return property && !(ts.getCheckFlags(property) & 16) ? property : undefined;
+        }
+        function getReducedType(type) {
+            if (type.flags & 1048576 && type.objectFlags & 268435456) {
+                return type.resolvedReducedType || (type.resolvedReducedType = getReducedUnionType(type));
+            }
+            else if (type.flags & 2097152) {
+                if (!(type.objectFlags & 268435456)) {
+                    type.objectFlags |= 268435456 |
+                        (ts.some(getPropertiesOfUnionOrIntersectionType(type), isNeverReducedProperty) ? 536870912 : 0);
+                }
+                return type.objectFlags & 536870912 ? neverType : type;
+            }
+            return type;
+        }
+        function getReducedUnionType(unionType) {
+            var reducedTypes = ts.sameMap(unionType.types, getReducedType);
+            if (reducedTypes === unionType.types) {
+                return unionType;
+            }
+            var reduced = getUnionType(reducedTypes);
+            if (reduced.flags & 1048576) {
+                reduced.resolvedReducedType = reduced;
+            }
+            return reduced;
+        }
+        function isNeverReducedProperty(prop) {
+            return isDiscriminantWithNeverType(prop) || isConflictingPrivateProperty(prop);
+        }
+        function isDiscriminantWithNeverType(prop) {
+            return !(prop.flags & 16777216) &&
+                (ts.getCheckFlags(prop) & (192 | 131072)) === 192 &&
+                !!(getTypeOfSymbol(prop).flags & 131072);
+        }
+        function isConflictingPrivateProperty(prop) {
+            return !prop.valueDeclaration && !!(ts.getCheckFlags(prop) & 1024);
+        }
+        function elaborateNeverIntersection(errorInfo, type) {
+            if (ts.getObjectFlags(type) & 536870912) {
+                var neverProp = ts.find(getPropertiesOfUnionOrIntersectionType(type), isDiscriminantWithNeverType);
+                if (neverProp) {
+                    return ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.The_intersection_0_was_reduced_to_never_because_property_1_has_conflicting_types_in_some_constituents, typeToString(type, undefined, 536870912), symbolToString(neverProp));
+                }
+                var privateProp = ts.find(getPropertiesOfUnionOrIntersectionType(type), isConflictingPrivateProperty);
+                if (privateProp) {
+                    return ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.The_intersection_0_was_reduced_to_never_because_property_1_exists_in_multiple_constituents_and_is_private_in_some, typeToString(type, undefined, 536870912), symbolToString(privateProp));
+                }
+            }
+            return errorInfo;
+        }
+        function getPropertyOfType(type, name) {
+            type = getReducedApparentType(type);
+            if (type.flags & 524288) {
+                var resolved = resolveStructuredTypeMembers(type);
+                var symbol = resolved.members.get(name);
+                if (symbol && symbolIsValue(symbol)) {
+                    return symbol;
+                }
+                var functionType = resolved === anyFunctionType ? globalFunctionType :
+                    resolved.callSignatures.length ? globalCallableFunctionType :
+                        resolved.constructSignatures.length ? globalNewableFunctionType :
+                            undefined;
+                if (functionType) {
+                    var symbol_1 = getPropertyOfObjectType(functionType, name);
+                    if (symbol_1) {
+                        return symbol_1;
+                    }
+                }
+                return getPropertyOfObjectType(globalObjectType, name);
+            }
+            if (type.flags & 3145728) {
+                return getPropertyOfUnionOrIntersectionType(type, name);
+            }
+            return undefined;
+        }
+        function getSignaturesOfStructuredType(type, kind) {
+            if (type.flags & 3670016) {
+                var resolved = resolveStructuredTypeMembers(type);
+                return kind === 0 ? resolved.callSignatures : resolved.constructSignatures;
+            }
+            return ts.emptyArray;
+        }
+        function getSignaturesOfType(type, kind) {
+            return getSignaturesOfStructuredType(getReducedApparentType(type), kind);
+        }
+        function getIndexInfoOfStructuredType(type, kind) {
+            if (type.flags & 3670016) {
+                var resolved = resolveStructuredTypeMembers(type);
+                return kind === 0 ? resolved.stringIndexInfo : resolved.numberIndexInfo;
+            }
+        }
+        function getIndexTypeOfStructuredType(type, kind) {
+            var info = getIndexInfoOfStructuredType(type, kind);
+            return info && info.type;
+        }
+        function getIndexInfoOfType(type, kind) {
+            return getIndexInfoOfStructuredType(getReducedApparentType(type), kind);
+        }
+        function getIndexTypeOfType(type, kind) {
+            return getIndexTypeOfStructuredType(getReducedApparentType(type), kind);
+        }
+        function getImplicitIndexTypeOfType(type, kind) {
+            if (isObjectTypeWithInferableIndex(type)) {
+                var propTypes = [];
+                for (var _i = 0, _a = getPropertiesOfType(type); _i < _a.length; _i++) {
+                    var prop = _a[_i];
+                    if (kind === 0 || isNumericLiteralName(prop.escapedName)) {
+                        propTypes.push(getTypeOfSymbol(prop));
+                    }
+                }
+                if (kind === 0) {
+                    ts.append(propTypes, getIndexTypeOfType(type, 1));
+                }
+                if (propTypes.length) {
+                    return getUnionType(propTypes);
+                }
+            }
+            return undefined;
+        }
+        function getTypeParametersFromDeclaration(declaration) {
+            var result;
+            for (var _i = 0, _a = ts.getEffectiveTypeParameterDeclarations(declaration); _i < _a.length; _i++) {
+                var node = _a[_i];
+                result = ts.appendIfUnique(result, getDeclaredTypeOfTypeParameter(node.symbol));
+            }
+            return result;
+        }
+        function symbolsToArray(symbols) {
+            var result = [];
+            symbols.forEach(function (symbol, id) {
+                if (!isReservedMemberName(id)) {
+                    result.push(symbol);
+                }
+            });
+            return result;
+        }
+        function isJSDocOptionalParameter(node) {
+            return ts.isInJSFile(node) && (node.type && node.type.kind === 299
+                || ts.getJSDocParameterTags(node).some(function (_a) {
+                    var isBracketed = _a.isBracketed, typeExpression = _a.typeExpression;
+                    return isBracketed || !!typeExpression && typeExpression.type.kind === 299;
+                }));
+        }
+        function tryFindAmbientModule(moduleName, withAugmentations) {
+            if (ts.isExternalModuleNameRelative(moduleName)) {
+                return undefined;
+            }
+            var symbol = getSymbol(globals, '"' + moduleName + '"', 512);
+            return symbol && withAugmentations ? getMergedSymbol(symbol) : symbol;
+        }
+        function isOptionalParameter(node) {
+            if (ts.hasQuestionToken(node) || isOptionalJSDocParameterTag(node) || isJSDocOptionalParameter(node)) {
+                return true;
+            }
+            if (node.initializer) {
+                var signature = getSignatureFromDeclaration(node.parent);
+                var parameterIndex = node.parent.parameters.indexOf(node);
+                ts.Debug.assert(parameterIndex >= 0);
+                return parameterIndex >= getMinArgumentCount(signature, true);
+            }
+            var iife = ts.getImmediatelyInvokedFunctionExpression(node.parent);
+            if (iife) {
+                return !node.type &&
+                    !node.dotDotDotToken &&
+                    node.parent.parameters.indexOf(node) >= iife.arguments.length;
+            }
+            return false;
+        }
+        function isOptionalJSDocParameterTag(node) {
+            if (!ts.isJSDocParameterTag(node)) {
+                return false;
+            }
+            var isBracketed = node.isBracketed, typeExpression = node.typeExpression;
+            return isBracketed || !!typeExpression && typeExpression.type.kind === 299;
+        }
+        function createTypePredicate(kind, parameterName, parameterIndex, type) {
+            return { kind: kind, parameterName: parameterName, parameterIndex: parameterIndex, type: type };
+        }
+        function getMinTypeArgumentCount(typeParameters) {
+            var minTypeArgumentCount = 0;
+            if (typeParameters) {
+                for (var i = 0; i < typeParameters.length; i++) {
+                    if (!hasTypeParameterDefault(typeParameters[i])) {
+                        minTypeArgumentCount = i + 1;
+                    }
+                }
+            }
+            return minTypeArgumentCount;
+        }
+        function fillMissingTypeArguments(typeArguments, typeParameters, minTypeArgumentCount, isJavaScriptImplicitAny) {
+            var numTypeParameters = ts.length(typeParameters);
+            if (!numTypeParameters) {
+                return [];
+            }
+            var numTypeArguments = ts.length(typeArguments);
+            if (isJavaScriptImplicitAny || (numTypeArguments >= minTypeArgumentCount && numTypeArguments <= numTypeParameters)) {
+                var result = typeArguments ? typeArguments.slice() : [];
+                for (var i = numTypeArguments; i < numTypeParameters; i++) {
+                    result[i] = errorType;
+                }
+                var baseDefaultType = getDefaultTypeArgumentType(isJavaScriptImplicitAny);
+                for (var i = numTypeArguments; i < numTypeParameters; i++) {
+                    var defaultType = getDefaultFromTypeParameter(typeParameters[i]);
+                    if (isJavaScriptImplicitAny && defaultType && (isTypeIdenticalTo(defaultType, unknownType) || isTypeIdenticalTo(defaultType, emptyObjectType))) {
+                        defaultType = anyType;
+                    }
+                    result[i] = defaultType ? instantiateType(defaultType, createTypeMapper(typeParameters, result)) : baseDefaultType;
+                }
+                result.length = typeParameters.length;
+                return result;
+            }
+            return typeArguments && typeArguments.slice();
+        }
+        function getSignatureFromDeclaration(declaration) {
+            var links = getNodeLinks(declaration);
+            if (!links.resolvedSignature) {
+                var parameters = [];
+                var flags = 0;
+                var minArgumentCount = 0;
+                var thisParameter = void 0;
+                var hasThisParameter = false;
+                var iife = ts.getImmediatelyInvokedFunctionExpression(declaration);
+                var isJSConstructSignature = ts.isJSDocConstructSignature(declaration);
+                var isUntypedSignatureInJSFile = !iife &&
+                    ts.isInJSFile(declaration) &&
+                    ts.isValueSignatureDeclaration(declaration) &&
+                    !ts.hasJSDocParameterTags(declaration) &&
+                    !ts.getJSDocType(declaration);
+                if (isUntypedSignatureInJSFile) {
+                    flags |= 16;
+                }
+                for (var i = isJSConstructSignature ? 1 : 0; i < declaration.parameters.length; i++) {
+                    var param = declaration.parameters[i];
+                    var paramSymbol = param.symbol;
+                    var type = ts.isJSDocParameterTag(param) ? (param.typeExpression && param.typeExpression.type) : param.type;
+                    if (paramSymbol && !!(paramSymbol.flags & 4) && !ts.isBindingPattern(param.name)) {
+                        var resolvedSymbol = resolveName(param, paramSymbol.escapedName, 111551, undefined, undefined, false);
+                        paramSymbol = resolvedSymbol;
+                    }
+                    if (i === 0 && paramSymbol.escapedName === "this") {
+                        hasThisParameter = true;
+                        thisParameter = param.symbol;
+                    }
+                    else {
+                        parameters.push(paramSymbol);
+                    }
+                    if (type && type.kind === 187) {
+                        flags |= 2;
+                    }
+                    var isOptionalParameter_1 = isOptionalJSDocParameterTag(param) ||
+                        param.initializer || param.questionToken || param.dotDotDotToken ||
+                        iife && parameters.length > iife.arguments.length && !type ||
+                        isJSDocOptionalParameter(param);
+                    if (!isOptionalParameter_1) {
+                        minArgumentCount = parameters.length;
+                    }
+                }
+                if ((declaration.kind === 163 || declaration.kind === 164) &&
+                    !hasNonBindableDynamicName(declaration) &&
+                    (!hasThisParameter || !thisParameter)) {
+                    var otherKind = declaration.kind === 163 ? 164 : 163;
+                    var other = ts.getDeclarationOfKind(getSymbolOfNode(declaration), otherKind);
+                    if (other) {
+                        thisParameter = getAnnotatedAccessorThisParameter(other);
+                    }
+                }
+                var classType = declaration.kind === 162 ?
+                    getDeclaredTypeOfClassOrInterface(getMergedSymbol(declaration.parent.symbol))
+                    : undefined;
+                var typeParameters = classType ? classType.localTypeParameters : getTypeParametersFromDeclaration(declaration);
+                if (ts.hasRestParameter(declaration) || ts.isInJSFile(declaration) && maybeAddJsSyntheticRestParameter(declaration, parameters)) {
+                    flags |= 1;
+                }
+                links.resolvedSignature = createSignature(declaration, typeParameters, thisParameter, parameters, undefined, undefined, minArgumentCount, flags);
+            }
+            return links.resolvedSignature;
+        }
+        function maybeAddJsSyntheticRestParameter(declaration, parameters) {
+            if (ts.isJSDocSignature(declaration) || !containsArgumentsReference(declaration)) {
+                return false;
+            }
+            var lastParam = ts.lastOrUndefined(declaration.parameters);
+            var lastParamTags = lastParam ? ts.getJSDocParameterTags(lastParam) : ts.getJSDocTags(declaration).filter(ts.isJSDocParameterTag);
+            var lastParamVariadicType = ts.firstDefined(lastParamTags, function (p) {
+                return p.typeExpression && ts.isJSDocVariadicType(p.typeExpression.type) ? p.typeExpression.type : undefined;
+            });
+            var syntheticArgsSymbol = createSymbol(3, "args", 32768);
+            syntheticArgsSymbol.type = lastParamVariadicType ? createArrayType(getTypeFromTypeNode(lastParamVariadicType.type)) : anyArrayType;
+            if (lastParamVariadicType) {
+                parameters.pop();
+            }
+            parameters.push(syntheticArgsSymbol);
+            return true;
+        }
+        function getSignatureOfTypeTag(node) {
+            if (!(ts.isInJSFile(node) && ts.isFunctionLikeDeclaration(node)))
+                return undefined;
+            var typeTag = ts.getJSDocTypeTag(node);
+            var signature = typeTag && typeTag.typeExpression && getSingleCallSignature(getTypeFromTypeNode(typeTag.typeExpression));
+            return signature && getErasedSignature(signature);
+        }
+        function getReturnTypeOfTypeTag(node) {
+            var signature = getSignatureOfTypeTag(node);
+            return signature && getReturnTypeOfSignature(signature);
+        }
+        function containsArgumentsReference(declaration) {
+            var links = getNodeLinks(declaration);
+            if (links.containsArgumentsReference === undefined) {
+                if (links.flags & 8192) {
+                    links.containsArgumentsReference = true;
+                }
+                else {
+                    links.containsArgumentsReference = traverse(declaration.body);
+                }
+            }
+            return links.containsArgumentsReference;
+            function traverse(node) {
+                if (!node)
+                    return false;
+                switch (node.kind) {
+                    case 75:
+                        return node.escapedText === "arguments" && ts.isExpressionNode(node);
+                    case 159:
+                    case 161:
+                    case 163:
+                    case 164:
+                        return node.name.kind === 154
+                            && traverse(node.name);
+                    default:
+                        return !ts.nodeStartsNewLexicalEnvironment(node) && !ts.isPartOfTypeNode(node) && !!ts.forEachChild(node, traverse);
+                }
+            }
+        }
+        function getSignaturesOfSymbol(symbol) {
+            if (!symbol)
+                return ts.emptyArray;
+            var result = [];
+            for (var i = 0; i < symbol.declarations.length; i++) {
+                var decl = symbol.declarations[i];
+                if (!ts.isFunctionLike(decl))
+                    continue;
+                if (i > 0 && decl.body) {
+                    var previous = symbol.declarations[i - 1];
+                    if (decl.parent === previous.parent && decl.kind === previous.kind && decl.pos === previous.end) {
+                        continue;
+                    }
+                }
+                result.push(getSignatureFromDeclaration(decl));
+            }
+            return result;
+        }
+        function resolveExternalModuleTypeByLiteral(name) {
+            var moduleSym = resolveExternalModuleName(name, name);
+            if (moduleSym) {
+                var resolvedModuleSymbol = resolveExternalModuleSymbol(moduleSym);
+                if (resolvedModuleSymbol) {
+                    return getTypeOfSymbol(resolvedModuleSymbol);
+                }
+            }
+            return anyType;
+        }
+        function getThisTypeOfSignature(signature) {
+            if (signature.thisParameter) {
+                return getTypeOfSymbol(signature.thisParameter);
+            }
+        }
+        function getTypePredicateOfSignature(signature) {
+            if (!signature.resolvedTypePredicate) {
+                if (signature.target) {
+                    var targetTypePredicate = getTypePredicateOfSignature(signature.target);
+                    signature.resolvedTypePredicate = targetTypePredicate ? instantiateTypePredicate(targetTypePredicate, signature.mapper) : noTypePredicate;
+                }
+                else if (signature.unionSignatures) {
+                    signature.resolvedTypePredicate = getUnionTypePredicate(signature.unionSignatures) || noTypePredicate;
+                }
+                else {
+                    var type = signature.declaration && ts.getEffectiveReturnTypeNode(signature.declaration);
+                    var jsdocPredicate = void 0;
+                    if (!type && ts.isInJSFile(signature.declaration)) {
+                        var jsdocSignature = getSignatureOfTypeTag(signature.declaration);
+                        if (jsdocSignature && signature !== jsdocSignature) {
+                            jsdocPredicate = getTypePredicateOfSignature(jsdocSignature);
+                        }
+                    }
+                    signature.resolvedTypePredicate = type && ts.isTypePredicateNode(type) ?
+                        createTypePredicateFromTypePredicateNode(type, signature) :
+                        jsdocPredicate || noTypePredicate;
+                }
+                ts.Debug.assert(!!signature.resolvedTypePredicate);
+            }
+            return signature.resolvedTypePredicate === noTypePredicate ? undefined : signature.resolvedTypePredicate;
+        }
+        function createTypePredicateFromTypePredicateNode(node, signature) {
+            var parameterName = node.parameterName;
+            var type = node.type && getTypeFromTypeNode(node.type);
+            return parameterName.kind === 183 ?
+                createTypePredicate(node.assertsModifier ? 2 : 0, undefined, undefined, type) :
+                createTypePredicate(node.assertsModifier ? 3 : 1, parameterName.escapedText, ts.findIndex(signature.parameters, function (p) { return p.escapedName === parameterName.escapedText; }), type);
+        }
+        function getReturnTypeOfSignature(signature) {
+            if (!signature.resolvedReturnType) {
+                if (!pushTypeResolution(signature, 3)) {
+                    return errorType;
+                }
+                var type = signature.target ? instantiateType(getReturnTypeOfSignature(signature.target), signature.mapper) :
+                    signature.unionSignatures ? getUnionType(ts.map(signature.unionSignatures, getReturnTypeOfSignature), 2) :
+                        getReturnTypeFromAnnotation(signature.declaration) ||
+                            (ts.nodeIsMissing(signature.declaration.body) ? anyType : getReturnTypeFromBody(signature.declaration));
+                if (signature.flags & 4) {
+                    type = addOptionalTypeMarker(type);
+                }
+                else if (signature.flags & 8) {
+                    type = getOptionalType(type);
+                }
+                if (!popTypeResolution()) {
+                    if (signature.declaration) {
+                        var typeNode = ts.getEffectiveReturnTypeNode(signature.declaration);
+                        if (typeNode) {
+                            error(typeNode, ts.Diagnostics.Return_type_annotation_circularly_references_itself);
+                        }
+                        else if (noImplicitAny) {
+                            var declaration = signature.declaration;
+                            var name = ts.getNameOfDeclaration(declaration);
+                            if (name) {
+                                error(name, ts.Diagnostics._0_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions, ts.declarationNameToString(name));
+                            }
+                            else {
+                                error(declaration, ts.Diagnostics.Function_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions);
+                            }
+                        }
+                    }
+                    type = anyType;
+                }
+                signature.resolvedReturnType = type;
+            }
+            return signature.resolvedReturnType;
+        }
+        function getReturnTypeFromAnnotation(declaration) {
+            if (declaration.kind === 162) {
+                return getDeclaredTypeOfClassOrInterface(getMergedSymbol(declaration.parent.symbol));
+            }
+            if (ts.isJSDocConstructSignature(declaration)) {
+                return getTypeFromTypeNode(declaration.parameters[0].type);
+            }
+            var typeNode = ts.getEffectiveReturnTypeNode(declaration);
+            if (typeNode) {
+                return getTypeFromTypeNode(typeNode);
+            }
+            if (declaration.kind === 163 && !hasNonBindableDynamicName(declaration)) {
+                var jsDocType = ts.isInJSFile(declaration) && getTypeForDeclarationFromJSDocComment(declaration);
+                if (jsDocType) {
+                    return jsDocType;
+                }
+                var setter = ts.getDeclarationOfKind(getSymbolOfNode(declaration), 164);
+                var setterType = getAnnotatedAccessorType(setter);
+                if (setterType) {
+                    return setterType;
+                }
+            }
+            return getReturnTypeOfTypeTag(declaration);
+        }
+        function isResolvingReturnTypeOfSignature(signature) {
+            return !signature.resolvedReturnType && findResolutionCycleStartIndex(signature, 3) >= 0;
+        }
+        function getRestTypeOfSignature(signature) {
+            return tryGetRestTypeOfSignature(signature) || anyType;
+        }
+        function tryGetRestTypeOfSignature(signature) {
+            if (signatureHasRestParameter(signature)) {
+                var sigRestType = getTypeOfSymbol(signature.parameters[signature.parameters.length - 1]);
+                var restType = isTupleType(sigRestType) ? getRestTypeOfTupleType(sigRestType) : sigRestType;
+                return restType && getIndexTypeOfType(restType, 1);
+            }
+            return undefined;
+        }
+        function getSignatureInstantiation(signature, typeArguments, isJavascript, inferredTypeParameters) {
+            var instantiatedSignature = getSignatureInstantiationWithoutFillingInTypeArguments(signature, fillMissingTypeArguments(typeArguments, signature.typeParameters, getMinTypeArgumentCount(signature.typeParameters), isJavascript));
+            if (inferredTypeParameters) {
+                var returnSignature = getSingleCallOrConstructSignature(getReturnTypeOfSignature(instantiatedSignature));
+                if (returnSignature) {
+                    var newReturnSignature = cloneSignature(returnSignature);
+                    newReturnSignature.typeParameters = inferredTypeParameters;
+                    var newInstantiatedSignature = cloneSignature(instantiatedSignature);
+                    newInstantiatedSignature.resolvedReturnType = getOrCreateTypeFromSignature(newReturnSignature);
+                    return newInstantiatedSignature;
+                }
+            }
+            return instantiatedSignature;
+        }
+        function getSignatureInstantiationWithoutFillingInTypeArguments(signature, typeArguments) {
+            var instantiations = signature.instantiations || (signature.instantiations = ts.createMap());
+            var id = getTypeListId(typeArguments);
+            var instantiation = instantiations.get(id);
+            if (!instantiation) {
+                instantiations.set(id, instantiation = createSignatureInstantiation(signature, typeArguments));
+            }
+            return instantiation;
+        }
+        function createSignatureInstantiation(signature, typeArguments) {
+            return instantiateSignature(signature, createSignatureTypeMapper(signature, typeArguments), true);
+        }
+        function createSignatureTypeMapper(signature, typeArguments) {
+            return createTypeMapper(signature.typeParameters, typeArguments);
+        }
+        function getErasedSignature(signature) {
+            return signature.typeParameters ?
+                signature.erasedSignatureCache || (signature.erasedSignatureCache = createErasedSignature(signature)) :
+                signature;
+        }
+        function createErasedSignature(signature) {
+            return instantiateSignature(signature, createTypeEraser(signature.typeParameters), true);
+        }
+        function getCanonicalSignature(signature) {
+            return signature.typeParameters ?
+                signature.canonicalSignatureCache || (signature.canonicalSignatureCache = createCanonicalSignature(signature)) :
+                signature;
+        }
+        function createCanonicalSignature(signature) {
+            return getSignatureInstantiation(signature, ts.map(signature.typeParameters, function (tp) { return tp.target && !getConstraintOfTypeParameter(tp.target) ? tp.target : tp; }), ts.isInJSFile(signature.declaration));
+        }
+        function getBaseSignature(signature) {
+            var typeParameters = signature.typeParameters;
+            if (typeParameters) {
+                var typeEraser_1 = createTypeEraser(typeParameters);
+                var baseConstraints = ts.map(typeParameters, function (tp) { return instantiateType(getBaseConstraintOfType(tp), typeEraser_1) || unknownType; });
+                return instantiateSignature(signature, createTypeMapper(typeParameters, baseConstraints), true);
+            }
+            return signature;
+        }
+        function getOrCreateTypeFromSignature(signature) {
+            if (!signature.isolatedSignatureType) {
+                var kind = signature.declaration ? signature.declaration.kind : 0;
+                var isConstructor = kind === 162 || kind === 166 || kind === 171;
+                var type = createObjectType(16);
+                type.members = emptySymbols;
+                type.properties = ts.emptyArray;
+                type.callSignatures = !isConstructor ? [signature] : ts.emptyArray;
+                type.constructSignatures = isConstructor ? [signature] : ts.emptyArray;
+                signature.isolatedSignatureType = type;
+            }
+            return signature.isolatedSignatureType;
+        }
+        function getIndexSymbol(symbol) {
+            return symbol.members.get("__index");
+        }
+        function getIndexDeclarationOfSymbol(symbol, kind) {
+            var syntaxKind = kind === 1 ? 140 : 143;
+            var indexSymbol = getIndexSymbol(symbol);
+            if (indexSymbol) {
+                for (var _i = 0, _a = indexSymbol.declarations; _i < _a.length; _i++) {
+                    var decl = _a[_i];
+                    var node = ts.cast(decl, ts.isIndexSignatureDeclaration);
+                    if (node.parameters.length === 1) {
+                        var parameter = node.parameters[0];
+                        if (parameter.type && parameter.type.kind === syntaxKind) {
+                            return node;
+                        }
+                    }
+                }
+            }
+            return undefined;
+        }
+        function createIndexInfo(type, isReadonly, declaration) {
+            return { type: type, isReadonly: isReadonly, declaration: declaration };
+        }
+        function getIndexInfoOfSymbol(symbol, kind) {
+            var declaration = getIndexDeclarationOfSymbol(symbol, kind);
+            if (declaration) {
+                return createIndexInfo(declaration.type ? getTypeFromTypeNode(declaration.type) : anyType, ts.hasModifier(declaration, 64), declaration);
+            }
+            return undefined;
+        }
+        function getConstraintDeclaration(type) {
+            return ts.mapDefined(ts.filter(type.symbol && type.symbol.declarations, ts.isTypeParameterDeclaration), ts.getEffectiveConstraintOfTypeParameter)[0];
+        }
+        function getInferredTypeParameterConstraint(typeParameter) {
+            var inferences;
+            if (typeParameter.symbol) {
+                for (var _i = 0, _a = typeParameter.symbol.declarations; _i < _a.length; _i++) {
+                    var declaration = _a[_i];
+                    if (declaration.parent.kind === 181) {
+                        var grandParent = declaration.parent.parent;
+                        if (grandParent.kind === 169) {
+                            var typeReference = grandParent;
+                            var typeParameters = getTypeParametersForTypeReference(typeReference);
+                            if (typeParameters) {
+                                var index = typeReference.typeArguments.indexOf(declaration.parent);
+                                if (index < typeParameters.length) {
+                                    var declaredConstraint = getConstraintOfTypeParameter(typeParameters[index]);
+                                    if (declaredConstraint) {
+                                        var mapper = createTypeMapper(typeParameters, getEffectiveTypeArguments(typeReference, typeParameters));
+                                        var constraint = instantiateType(declaredConstraint, mapper);
+                                        if (constraint !== typeParameter) {
+                                            inferences = ts.append(inferences, constraint);
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                        else if (grandParent.kind === 156 && grandParent.dotDotDotToken) {
+                            inferences = ts.append(inferences, createArrayType(unknownType));
+                        }
+                    }
+                }
+            }
+            return inferences && getIntersectionType(inferences);
+        }
+        function getConstraintFromTypeParameter(typeParameter) {
+            if (!typeParameter.constraint) {
+                if (typeParameter.target) {
+                    var targetConstraint = getConstraintOfTypeParameter(typeParameter.target);
+                    typeParameter.constraint = targetConstraint ? instantiateType(targetConstraint, typeParameter.mapper) : noConstraintType;
+                }
+                else {
+                    var constraintDeclaration = getConstraintDeclaration(typeParameter);
+                    if (!constraintDeclaration) {
+                        typeParameter.constraint = getInferredTypeParameterConstraint(typeParameter) || noConstraintType;
+                    }
+                    else {
+                        var type = getTypeFromTypeNode(constraintDeclaration);
+                        if (type.flags & 1 && type !== errorType) {
+                            type = constraintDeclaration.parent.parent.kind === 186 ? keyofConstraintType : unknownType;
+                        }
+                        typeParameter.constraint = type;
+                    }
+                }
+            }
+            return typeParameter.constraint === noConstraintType ? undefined : typeParameter.constraint;
+        }
+        function getParentSymbolOfTypeParameter(typeParameter) {
+            var tp = ts.getDeclarationOfKind(typeParameter.symbol, 155);
+            var host = ts.isJSDocTemplateTag(tp.parent) ? ts.getHostSignatureFromJSDoc(tp.parent) : tp.parent;
+            return host && getSymbolOfNode(host);
+        }
+        function getTypeListId(types) {
+            var result = "";
+            if (types) {
+                var length_4 = types.length;
+                var i = 0;
+                while (i < length_4) {
+                    var startId = types[i].id;
+                    var count = 1;
+                    while (i + count < length_4 && types[i + count].id === startId + count) {
+                        count++;
+                    }
+                    if (result.length) {
+                        result += ",";
+                    }
+                    result += startId;
+                    if (count > 1) {
+                        result += ":" + count;
+                    }
+                    i += count;
+                }
+            }
+            return result;
+        }
+        function getPropagatingFlagsOfTypes(types, excludeKinds) {
+            var result = 0;
+            for (var _i = 0, types_8 = types; _i < types_8.length; _i++) {
+                var type = types_8[_i];
+                if (!(type.flags & excludeKinds)) {
+                    result |= ts.getObjectFlags(type);
+                }
+            }
+            return result & 3670016;
+        }
+        function createTypeReference(target, typeArguments) {
+            var id = getTypeListId(typeArguments);
+            var type = target.instantiations.get(id);
+            if (!type) {
+                type = createObjectType(4, target.symbol);
+                target.instantiations.set(id, type);
+                type.objectFlags |= typeArguments ? getPropagatingFlagsOfTypes(typeArguments, 0) : 0;
+                type.target = target;
+                type.resolvedTypeArguments = typeArguments;
+            }
+            return type;
+        }
+        function cloneTypeReference(source) {
+            var type = createType(source.flags);
+            type.symbol = source.symbol;
+            type.objectFlags = source.objectFlags;
+            type.target = source.target;
+            type.resolvedTypeArguments = source.resolvedTypeArguments;
+            return type;
+        }
+        function createDeferredTypeReference(target, node, mapper) {
+            var aliasSymbol = getAliasSymbolForTypeNode(node);
+            var aliasTypeArguments = getTypeArgumentsForAliasSymbol(aliasSymbol);
+            var type = createObjectType(4, target.symbol);
+            type.target = target;
+            type.node = node;
+            type.mapper = mapper;
+            type.aliasSymbol = aliasSymbol;
+            type.aliasTypeArguments = mapper ? instantiateTypes(aliasTypeArguments, mapper) : aliasTypeArguments;
+            return type;
+        }
+        function getTypeArguments(type) {
+            var _a, _b;
+            if (!type.resolvedTypeArguments) {
+                if (!pushTypeResolution(type, 6)) {
+                    return ((_a = type.target.localTypeParameters) === null || _a === void 0 ? void 0 : _a.map(function () { return errorType; })) || ts.emptyArray;
+                }
+                var node = type.node;
+                var typeArguments = !node ? ts.emptyArray :
+                    node.kind === 169 ? ts.concatenate(type.target.outerTypeParameters, getEffectiveTypeArguments(node, type.target.localTypeParameters)) :
+                        node.kind === 174 ? [getTypeFromTypeNode(node.elementType)] :
+                            ts.map(node.elementTypes, getTypeFromTypeNode);
+                if (popTypeResolution()) {
+                    type.resolvedTypeArguments = type.mapper ? instantiateTypes(typeArguments, type.mapper) : typeArguments;
+                }
+                else {
+                    type.resolvedTypeArguments = ((_b = type.target.localTypeParameters) === null || _b === void 0 ? void 0 : _b.map(function () { return errorType; })) || ts.emptyArray;
+                    error(type.node || currentNode, type.target.symbol
+                        ? ts.Diagnostics.Type_arguments_for_0_circularly_reference_themselves
+                        : ts.Diagnostics.Tuple_type_arguments_circularly_reference_themselves, type.target.symbol && symbolToString(type.target.symbol));
+                }
+            }
+            return type.resolvedTypeArguments;
+        }
+        function getTypeReferenceArity(type) {
+            return ts.length(type.target.typeParameters);
+        }
+        function getTypeFromClassOrInterfaceReference(node, symbol) {
+            var type = getDeclaredTypeOfSymbol(getMergedSymbol(symbol));
+            var typeParameters = type.localTypeParameters;
+            if (typeParameters) {
+                var numTypeArguments = ts.length(node.typeArguments);
+                var minTypeArgumentCount = getMinTypeArgumentCount(typeParameters);
+                var isJs = ts.isInJSFile(node);
+                var isJsImplicitAny = !noImplicitAny && isJs;
+                if (!isJsImplicitAny && (numTypeArguments < minTypeArgumentCount || numTypeArguments > typeParameters.length)) {
+                    var missingAugmentsTag = isJs && ts.isExpressionWithTypeArguments(node) && !ts.isJSDocAugmentsTag(node.parent);
+                    var diag = minTypeArgumentCount === typeParameters.length ?
+                        missingAugmentsTag ?
+                            ts.Diagnostics.Expected_0_type_arguments_provide_these_with_an_extends_tag :
+                            ts.Diagnostics.Generic_type_0_requires_1_type_argument_s :
+                        missingAugmentsTag ?
+                            ts.Diagnostics.Expected_0_1_type_arguments_provide_these_with_an_extends_tag :
+                            ts.Diagnostics.Generic_type_0_requires_between_1_and_2_type_arguments;
+                    var typeStr = typeToString(type, undefined, 2);
+                    error(node, diag, typeStr, minTypeArgumentCount, typeParameters.length);
+                    if (!isJs) {
+                        return errorType;
+                    }
+                }
+                if (node.kind === 169 && isDeferredTypeReferenceNode(node, ts.length(node.typeArguments) !== typeParameters.length)) {
+                    return createDeferredTypeReference(type, node, undefined);
+                }
+                var typeArguments = ts.concatenate(type.outerTypeParameters, fillMissingTypeArguments(typeArgumentsFromTypeReferenceNode(node), typeParameters, minTypeArgumentCount, isJs));
+                return createTypeReference(type, typeArguments);
+            }
+            return checkNoTypeArguments(node, symbol) ? type : errorType;
+        }
+        function getTypeAliasInstantiation(symbol, typeArguments) {
+            var type = getDeclaredTypeOfSymbol(symbol);
+            var links = getSymbolLinks(symbol);
+            var typeParameters = links.typeParameters;
+            var id = getTypeListId(typeArguments);
+            var instantiation = links.instantiations.get(id);
+            if (!instantiation) {
+                links.instantiations.set(id, instantiation = instantiateType(type, createTypeMapper(typeParameters, fillMissingTypeArguments(typeArguments, typeParameters, getMinTypeArgumentCount(typeParameters), ts.isInJSFile(symbol.valueDeclaration)))));
+            }
+            return instantiation;
+        }
+        function getTypeFromTypeAliasReference(node, symbol) {
+            var type = getDeclaredTypeOfSymbol(symbol);
+            var typeParameters = getSymbolLinks(symbol).typeParameters;
+            if (typeParameters) {
+                var numTypeArguments = ts.length(node.typeArguments);
+                var minTypeArgumentCount = getMinTypeArgumentCount(typeParameters);
+                if (numTypeArguments < minTypeArgumentCount || numTypeArguments > typeParameters.length) {
+                    error(node, minTypeArgumentCount === typeParameters.length ?
+                        ts.Diagnostics.Generic_type_0_requires_1_type_argument_s :
+                        ts.Diagnostics.Generic_type_0_requires_between_1_and_2_type_arguments, symbolToString(symbol), minTypeArgumentCount, typeParameters.length);
+                    return errorType;
+                }
+                return getTypeAliasInstantiation(symbol, typeArgumentsFromTypeReferenceNode(node));
+            }
+            return checkNoTypeArguments(node, symbol) ? type : errorType;
+        }
+        function getTypeReferenceName(node) {
+            switch (node.kind) {
+                case 169:
+                    return node.typeName;
+                case 216:
+                    var expr = node.expression;
+                    if (ts.isEntityNameExpression(expr)) {
+                        return expr;
+                    }
+            }
+            return undefined;
+        }
+        function resolveTypeReferenceName(typeReferenceName, meaning, ignoreErrors) {
+            if (!typeReferenceName) {
+                return unknownSymbol;
+            }
+            return resolveEntityName(typeReferenceName, meaning, ignoreErrors) || unknownSymbol;
+        }
+        function getTypeReferenceType(node, symbol) {
+            if (symbol === unknownSymbol) {
+                return errorType;
+            }
+            symbol = getExpandoSymbol(symbol) || symbol;
+            if (symbol.flags & (32 | 64)) {
+                return getTypeFromClassOrInterfaceReference(node, symbol);
+            }
+            if (symbol.flags & 524288) {
+                return getTypeFromTypeAliasReference(node, symbol);
+            }
+            var res = tryGetDeclaredTypeOfSymbol(symbol);
+            if (res) {
+                return checkNoTypeArguments(node, symbol) ? getRegularTypeOfLiteralType(res) : errorType;
+            }
+            if (symbol.flags & 111551 && isJSDocTypeReference(node)) {
+                var jsdocType = getTypeFromJSDocValueReference(node, symbol);
+                if (jsdocType) {
+                    return jsdocType;
+                }
+                else {
+                    resolveTypeReferenceName(getTypeReferenceName(node), 788968);
+                    return getTypeOfSymbol(symbol);
+                }
+            }
+            return errorType;
+        }
+        function getTypeFromJSDocValueReference(node, symbol) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedJSDocType) {
+                var valueType = getTypeOfSymbol(symbol);
+                var typeType = valueType;
+                if (symbol.valueDeclaration) {
+                    var decl = ts.getRootDeclaration(symbol.valueDeclaration);
+                    var isRequireAlias = false;
+                    if (ts.isVariableDeclaration(decl) && decl.initializer) {
+                        var expr = decl.initializer;
+                        while (ts.isPropertyAccessExpression(expr)) {
+                            expr = expr.expression;
+                        }
+                        isRequireAlias = ts.isCallExpression(expr) && ts.isRequireCall(expr, true) && !!valueType.symbol;
+                    }
+                    var isImportTypeWithQualifier = node.kind === 188 && node.qualifier;
+                    if (valueType.symbol && (isRequireAlias || isImportTypeWithQualifier)) {
+                        typeType = getTypeReferenceType(node, valueType.symbol);
+                    }
+                }
+                links.resolvedJSDocType = typeType;
+            }
+            return links.resolvedJSDocType;
+        }
+        function getSubstitutionType(baseType, substitute) {
+            if (substitute.flags & 3 || substitute === baseType) {
+                return baseType;
+            }
+            var id = getTypeId(baseType) + ">" + getTypeId(substitute);
+            var cached = substitutionTypes.get(id);
+            if (cached) {
+                return cached;
+            }
+            var result = createType(33554432);
+            result.baseType = baseType;
+            result.substitute = substitute;
+            substitutionTypes.set(id, result);
+            return result;
+        }
+        function isUnaryTupleTypeNode(node) {
+            return node.kind === 175 && node.elementTypes.length === 1;
+        }
+        function getImpliedConstraint(type, checkNode, extendsNode) {
+            return isUnaryTupleTypeNode(checkNode) && isUnaryTupleTypeNode(extendsNode) ? getImpliedConstraint(type, checkNode.elementTypes[0], extendsNode.elementTypes[0]) :
+                getActualTypeVariable(getTypeFromTypeNode(checkNode)) === type ? getTypeFromTypeNode(extendsNode) :
+                    undefined;
+        }
+        function getConditionalFlowTypeOfType(type, node) {
+            var constraints;
+            while (node && !ts.isStatement(node) && node.kind !== 303) {
+                var parent = node.parent;
+                if (parent.kind === 180 && node === parent.trueType) {
+                    var constraint = getImpliedConstraint(type, parent.checkType, parent.extendsType);
+                    if (constraint) {
+                        constraints = ts.append(constraints, constraint);
+                    }
+                }
+                node = parent;
+            }
+            return constraints ? getSubstitutionType(type, getIntersectionType(ts.append(constraints, type))) : type;
+        }
+        function isJSDocTypeReference(node) {
+            return !!(node.flags & 4194304) && (node.kind === 169 || node.kind === 188);
+        }
+        function checkNoTypeArguments(node, symbol) {
+            if (node.typeArguments) {
+                error(node, ts.Diagnostics.Type_0_is_not_generic, symbol ? symbolToString(symbol) : node.typeName ? ts.declarationNameToString(node.typeName) : anon);
+                return false;
+            }
+            return true;
+        }
+        function getIntendedTypeFromJSDocTypeReference(node) {
+            if (ts.isIdentifier(node.typeName)) {
+                var typeArgs = node.typeArguments;
+                switch (node.typeName.escapedText) {
+                    case "String":
+                        checkNoTypeArguments(node);
+                        return stringType;
+                    case "Number":
+                        checkNoTypeArguments(node);
+                        return numberType;
+                    case "Boolean":
+                        checkNoTypeArguments(node);
+                        return booleanType;
+                    case "Void":
+                        checkNoTypeArguments(node);
+                        return voidType;
+                    case "Undefined":
+                        checkNoTypeArguments(node);
+                        return undefinedType;
+                    case "Null":
+                        checkNoTypeArguments(node);
+                        return nullType;
+                    case "Function":
+                    case "function":
+                        checkNoTypeArguments(node);
+                        return globalFunctionType;
+                    case "array":
+                        return (!typeArgs || !typeArgs.length) && !noImplicitAny ? anyArrayType : undefined;
+                    case "promise":
+                        return (!typeArgs || !typeArgs.length) && !noImplicitAny ? createPromiseType(anyType) : undefined;
+                    case "Object":
+                        if (typeArgs && typeArgs.length === 2) {
+                            if (ts.isJSDocIndexSignature(node)) {
+                                var indexed = getTypeFromTypeNode(typeArgs[0]);
+                                var target = getTypeFromTypeNode(typeArgs[1]);
+                                var index = createIndexInfo(target, false);
+                                return createAnonymousType(undefined, emptySymbols, ts.emptyArray, ts.emptyArray, indexed === stringType ? index : undefined, indexed === numberType ? index : undefined);
+                            }
+                            return anyType;
+                        }
+                        checkNoTypeArguments(node);
+                        return !noImplicitAny ? anyType : undefined;
+                }
+            }
+        }
+        function getTypeFromJSDocNullableTypeNode(node) {
+            var type = getTypeFromTypeNode(node.type);
+            return strictNullChecks ? getNullableType(type, 65536) : type;
+        }
+        function getTypeFromTypeReference(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedType) {
+                if (ts.isConstTypeReference(node) && ts.isAssertionExpression(node.parent)) {
+                    links.resolvedSymbol = unknownSymbol;
+                    return links.resolvedType = checkExpressionCached(node.parent.expression);
+                }
+                var symbol = void 0;
+                var type = void 0;
+                var meaning = 788968;
+                if (isJSDocTypeReference(node)) {
+                    type = getIntendedTypeFromJSDocTypeReference(node);
+                    if (!type) {
+                        symbol = resolveTypeReferenceName(getTypeReferenceName(node), meaning, true);
+                        if (symbol === unknownSymbol) {
+                            symbol = resolveTypeReferenceName(getTypeReferenceName(node), meaning | 111551);
+                        }
+                        else {
+                            resolveTypeReferenceName(getTypeReferenceName(node), meaning);
+                        }
+                        type = getTypeReferenceType(node, symbol);
+                    }
+                }
+                if (!type) {
+                    symbol = resolveTypeReferenceName(getTypeReferenceName(node), meaning);
+                    type = getTypeReferenceType(node, symbol);
+                }
+                links.resolvedSymbol = symbol;
+                links.resolvedType = type;
+            }
+            return links.resolvedType;
+        }
+        function typeArgumentsFromTypeReferenceNode(node) {
+            return ts.map(node.typeArguments, getTypeFromTypeNode);
+        }
+        function getTypeFromTypeQueryNode(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedType) {
+                links.resolvedType = getRegularTypeOfLiteralType(getWidenedType(checkExpression(node.exprName)));
+            }
+            return links.resolvedType;
+        }
+        function getTypeOfGlobalSymbol(symbol, arity) {
+            function getTypeDeclaration(symbol) {
+                var declarations = symbol.declarations;
+                for (var _i = 0, declarations_3 = declarations; _i < declarations_3.length; _i++) {
+                    var declaration = declarations_3[_i];
+                    switch (declaration.kind) {
+                        case 245:
+                        case 246:
+                        case 248:
+                            return declaration;
+                    }
+                }
+            }
+            if (!symbol) {
+                return arity ? emptyGenericType : emptyObjectType;
+            }
+            var type = getDeclaredTypeOfSymbol(symbol);
+            if (!(type.flags & 524288)) {
+                error(getTypeDeclaration(symbol), ts.Diagnostics.Global_type_0_must_be_a_class_or_interface_type, ts.symbolName(symbol));
+                return arity ? emptyGenericType : emptyObjectType;
+            }
+            if (ts.length(type.typeParameters) !== arity) {
+                error(getTypeDeclaration(symbol), ts.Diagnostics.Global_type_0_must_have_1_type_parameter_s, ts.symbolName(symbol), arity);
+                return arity ? emptyGenericType : emptyObjectType;
+            }
+            return type;
+        }
+        function getGlobalValueSymbol(name, reportErrors) {
+            return getGlobalSymbol(name, 111551, reportErrors ? ts.Diagnostics.Cannot_find_global_value_0 : undefined);
+        }
+        function getGlobalTypeSymbol(name, reportErrors) {
+            return getGlobalSymbol(name, 788968, reportErrors ? ts.Diagnostics.Cannot_find_global_type_0 : undefined);
+        }
+        function getGlobalSymbol(name, meaning, diagnostic) {
+            return resolveName(undefined, name, meaning, diagnostic, name, false);
+        }
+        function getGlobalType(name, arity, reportErrors) {
+            var symbol = getGlobalTypeSymbol(name, reportErrors);
+            return symbol || reportErrors ? getTypeOfGlobalSymbol(symbol, arity) : undefined;
+        }
+        function getGlobalTypedPropertyDescriptorType() {
+            return deferredGlobalTypedPropertyDescriptorType || (deferredGlobalTypedPropertyDescriptorType = getGlobalType("TypedPropertyDescriptor", 1, true)) || emptyGenericType;
+        }
+        function getGlobalTemplateStringsArrayType() {
+            return deferredGlobalTemplateStringsArrayType || (deferredGlobalTemplateStringsArrayType = getGlobalType("TemplateStringsArray", 0, true)) || emptyObjectType;
+        }
+        function getGlobalImportMetaType() {
+            return deferredGlobalImportMetaType || (deferredGlobalImportMetaType = getGlobalType("ImportMeta", 0, true)) || emptyObjectType;
+        }
+        function getGlobalESSymbolConstructorSymbol(reportErrors) {
+            return deferredGlobalESSymbolConstructorSymbol || (deferredGlobalESSymbolConstructorSymbol = getGlobalValueSymbol("Symbol", reportErrors));
+        }
+        function getGlobalESSymbolType(reportErrors) {
+            return deferredGlobalESSymbolType || (deferredGlobalESSymbolType = getGlobalType("Symbol", 0, reportErrors)) || emptyObjectType;
+        }
+        function getGlobalPromiseType(reportErrors) {
+            return deferredGlobalPromiseType || (deferredGlobalPromiseType = getGlobalType("Promise", 1, reportErrors)) || emptyGenericType;
+        }
+        function getGlobalPromiseLikeType(reportErrors) {
+            return deferredGlobalPromiseLikeType || (deferredGlobalPromiseLikeType = getGlobalType("PromiseLike", 1, reportErrors)) || emptyGenericType;
+        }
+        function getGlobalPromiseConstructorSymbol(reportErrors) {
+            return deferredGlobalPromiseConstructorSymbol || (deferredGlobalPromiseConstructorSymbol = getGlobalValueSymbol("Promise", reportErrors));
+        }
+        function getGlobalPromiseConstructorLikeType(reportErrors) {
+            return deferredGlobalPromiseConstructorLikeType || (deferredGlobalPromiseConstructorLikeType = getGlobalType("PromiseConstructorLike", 0, reportErrors)) || emptyObjectType;
+        }
+        function getGlobalAsyncIterableType(reportErrors) {
+            return deferredGlobalAsyncIterableType || (deferredGlobalAsyncIterableType = getGlobalType("AsyncIterable", 1, reportErrors)) || emptyGenericType;
+        }
+        function getGlobalAsyncIteratorType(reportErrors) {
+            return deferredGlobalAsyncIteratorType || (deferredGlobalAsyncIteratorType = getGlobalType("AsyncIterator", 3, reportErrors)) || emptyGenericType;
+        }
+        function getGlobalAsyncIterableIteratorType(reportErrors) {
+            return deferredGlobalAsyncIterableIteratorType || (deferredGlobalAsyncIterableIteratorType = getGlobalType("AsyncIterableIterator", 1, reportErrors)) || emptyGenericType;
+        }
+        function getGlobalAsyncGeneratorType(reportErrors) {
+            return deferredGlobalAsyncGeneratorType || (deferredGlobalAsyncGeneratorType = getGlobalType("AsyncGenerator", 3, reportErrors)) || emptyGenericType;
+        }
+        function getGlobalIterableType(reportErrors) {
+            return deferredGlobalIterableType || (deferredGlobalIterableType = getGlobalType("Iterable", 1, reportErrors)) || emptyGenericType;
+        }
+        function getGlobalIteratorType(reportErrors) {
+            return deferredGlobalIteratorType || (deferredGlobalIteratorType = getGlobalType("Iterator", 3, reportErrors)) || emptyGenericType;
+        }
+        function getGlobalIterableIteratorType(reportErrors) {
+            return deferredGlobalIterableIteratorType || (deferredGlobalIterableIteratorType = getGlobalType("IterableIterator", 1, reportErrors)) || emptyGenericType;
+        }
+        function getGlobalGeneratorType(reportErrors) {
+            return deferredGlobalGeneratorType || (deferredGlobalGeneratorType = getGlobalType("Generator", 3, reportErrors)) || emptyGenericType;
+        }
+        function getGlobalIteratorYieldResultType(reportErrors) {
+            return deferredGlobalIteratorYieldResultType || (deferredGlobalIteratorYieldResultType = getGlobalType("IteratorYieldResult", 1, reportErrors)) || emptyGenericType;
+        }
+        function getGlobalIteratorReturnResultType(reportErrors) {
+            return deferredGlobalIteratorReturnResultType || (deferredGlobalIteratorReturnResultType = getGlobalType("IteratorReturnResult", 1, reportErrors)) || emptyGenericType;
+        }
+        function getGlobalTypeOrUndefined(name, arity) {
+            if (arity === void 0) { arity = 0; }
+            var symbol = getGlobalSymbol(name, 788968, undefined);
+            return symbol && getTypeOfGlobalSymbol(symbol, arity);
+        }
+        function getGlobalExtractSymbol() {
+            return deferredGlobalExtractSymbol || (deferredGlobalExtractSymbol = getGlobalSymbol("Extract", 524288, ts.Diagnostics.Cannot_find_global_type_0));
+        }
+        function getGlobalOmitSymbol() {
+            return deferredGlobalOmitSymbol || (deferredGlobalOmitSymbol = getGlobalSymbol("Omit", 524288, ts.Diagnostics.Cannot_find_global_type_0));
+        }
+        function getGlobalBigIntType(reportErrors) {
+            return deferredGlobalBigIntType || (deferredGlobalBigIntType = getGlobalType("BigInt", 0, reportErrors)) || emptyObjectType;
+        }
+        function createTypeFromGenericGlobalType(genericGlobalType, typeArguments) {
+            return genericGlobalType !== emptyGenericType ? createTypeReference(genericGlobalType, typeArguments) : emptyObjectType;
+        }
+        function createTypedPropertyDescriptorType(propertyType) {
+            return createTypeFromGenericGlobalType(getGlobalTypedPropertyDescriptorType(), [propertyType]);
+        }
+        function createIterableType(iteratedType) {
+            return createTypeFromGenericGlobalType(getGlobalIterableType(true), [iteratedType]);
+        }
+        function createArrayType(elementType, readonly) {
+            return createTypeFromGenericGlobalType(readonly ? globalReadonlyArrayType : globalArrayType, [elementType]);
+        }
+        function getArrayOrTupleTargetType(node) {
+            var readonly = isReadonlyTypeOperator(node.parent);
+            if (node.kind === 174 || node.elementTypes.length === 1 && node.elementTypes[0].kind === 177) {
+                return readonly ? globalReadonlyArrayType : globalArrayType;
+            }
+            var lastElement = ts.lastOrUndefined(node.elementTypes);
+            var restElement = lastElement && lastElement.kind === 177 ? lastElement : undefined;
+            var minLength = ts.findLastIndex(node.elementTypes, function (n) { return n.kind !== 176 && n !== restElement; }) + 1;
+            return getTupleTypeOfArity(node.elementTypes.length, minLength, !!restElement, readonly, undefined);
+        }
+        function isDeferredTypeReferenceNode(node, hasDefaultTypeArguments) {
+            return !!getAliasSymbolForTypeNode(node) || isResolvedByTypeAlias(node) && (node.kind === 174 ? mayResolveTypeAlias(node.elementType) :
+                node.kind === 175 ? ts.some(node.elementTypes, mayResolveTypeAlias) :
+                    hasDefaultTypeArguments || ts.some(node.typeArguments, mayResolveTypeAlias));
+        }
+        function isResolvedByTypeAlias(node) {
+            var parent = node.parent;
+            switch (parent.kind) {
+                case 182:
+                case 169:
+                case 178:
+                case 179:
+                case 185:
+                case 180:
+                case 184:
+                case 174:
+                case 175:
+                    return isResolvedByTypeAlias(parent);
+                case 247:
+                    return true;
+            }
+            return false;
+        }
+        function mayResolveTypeAlias(node) {
+            switch (node.kind) {
+                case 169:
+                    return isJSDocTypeReference(node) || !!(resolveTypeReferenceName(node.typeName, 788968).flags & 524288);
+                case 172:
+                    return true;
+                case 184:
+                    return node.operator !== 147 && mayResolveTypeAlias(node.type);
+                case 182:
+                case 176:
+                case 299:
+                case 297:
+                case 298:
+                case 294:
+                    return mayResolveTypeAlias(node.type);
+                case 177:
+                    return node.type.kind !== 174 || mayResolveTypeAlias(node.type.elementType);
+                case 178:
+                case 179:
+                    return ts.some(node.types, mayResolveTypeAlias);
+                case 185:
+                    return mayResolveTypeAlias(node.objectType) || mayResolveTypeAlias(node.indexType);
+                case 180:
+                    return mayResolveTypeAlias(node.checkType) || mayResolveTypeAlias(node.extendsType) ||
+                        mayResolveTypeAlias(node.trueType) || mayResolveTypeAlias(node.falseType);
+            }
+            return false;
+        }
+        function getTypeFromArrayOrTupleTypeNode(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedType) {
+                var target = getArrayOrTupleTargetType(node);
+                if (target === emptyGenericType) {
+                    links.resolvedType = emptyObjectType;
+                }
+                else if (isDeferredTypeReferenceNode(node)) {
+                    links.resolvedType = node.kind === 175 && node.elementTypes.length === 0 ? target :
+                        createDeferredTypeReference(target, node, undefined);
+                }
+                else {
+                    var elementTypes = node.kind === 174 ? [getTypeFromTypeNode(node.elementType)] : ts.map(node.elementTypes, getTypeFromTypeNode);
+                    links.resolvedType = createTypeReference(target, elementTypes);
+                }
+            }
+            return links.resolvedType;
+        }
+        function isReadonlyTypeOperator(node) {
+            return ts.isTypeOperatorNode(node) && node.operator === 138;
+        }
+        function createTupleTypeOfArity(arity, minLength, hasRestElement, readonly, associatedNames) {
+            var typeParameters;
+            var properties = [];
+            var maxLength = hasRestElement ? arity - 1 : arity;
+            if (arity) {
+                typeParameters = new Array(arity);
+                for (var i = 0; i < arity; i++) {
+                    var typeParameter = typeParameters[i] = createTypeParameter();
+                    if (i < maxLength) {
+                        var property = createSymbol(4 | (i >= minLength ? 16777216 : 0), "" + i, readonly ? 8 : 0);
+                        property.type = typeParameter;
+                        properties.push(property);
+                    }
+                }
+            }
+            var literalTypes = [];
+            for (var i = minLength; i <= maxLength; i++)
+                literalTypes.push(getLiteralType(i));
+            var lengthSymbol = createSymbol(4, "length");
+            lengthSymbol.type = hasRestElement ? numberType : getUnionType(literalTypes);
+            properties.push(lengthSymbol);
+            var type = createObjectType(8 | 4);
+            type.typeParameters = typeParameters;
+            type.outerTypeParameters = undefined;
+            type.localTypeParameters = typeParameters;
+            type.instantiations = ts.createMap();
+            type.instantiations.set(getTypeListId(type.typeParameters), type);
+            type.target = type;
+            type.resolvedTypeArguments = type.typeParameters;
+            type.thisType = createTypeParameter();
+            type.thisType.isThisType = true;
+            type.thisType.constraint = type;
+            type.declaredProperties = properties;
+            type.declaredCallSignatures = ts.emptyArray;
+            type.declaredConstructSignatures = ts.emptyArray;
+            type.declaredStringIndexInfo = undefined;
+            type.declaredNumberIndexInfo = undefined;
+            type.minLength = minLength;
+            type.hasRestElement = hasRestElement;
+            type.readonly = readonly;
+            type.associatedNames = associatedNames;
+            return type;
+        }
+        function getTupleTypeOfArity(arity, minLength, hasRestElement, readonly, associatedNames) {
+            var key = arity + (hasRestElement ? "+" : ",") + minLength + (readonly ? "R" : "") + (associatedNames && associatedNames.length ? "," + associatedNames.join(",") : "");
+            var type = tupleTypes.get(key);
+            if (!type) {
+                tupleTypes.set(key, type = createTupleTypeOfArity(arity, minLength, hasRestElement, readonly, associatedNames));
+            }
+            return type;
+        }
+        function createTupleType(elementTypes, minLength, hasRestElement, readonly, associatedNames) {
+            if (minLength === void 0) { minLength = elementTypes.length; }
+            if (hasRestElement === void 0) { hasRestElement = false; }
+            if (readonly === void 0) { readonly = false; }
+            var arity = elementTypes.length;
+            if (arity === 1 && hasRestElement) {
+                return createArrayType(elementTypes[0], readonly);
+            }
+            var tupleType = getTupleTypeOfArity(arity, minLength, arity > 0 && hasRestElement, readonly, associatedNames);
+            return elementTypes.length ? createTypeReference(tupleType, elementTypes) : tupleType;
+        }
+        function sliceTupleType(type, index) {
+            var tuple = type.target;
+            if (tuple.hasRestElement) {
+                index = Math.min(index, getTypeReferenceArity(type) - 1);
+            }
+            return createTupleType(getTypeArguments(type).slice(index), Math.max(0, tuple.minLength - index), tuple.hasRestElement, tuple.readonly, tuple.associatedNames && tuple.associatedNames.slice(index));
+        }
+        function getTypeFromOptionalTypeNode(node) {
+            var type = getTypeFromTypeNode(node.type);
+            return strictNullChecks ? getOptionalType(type) : type;
+        }
+        function getTypeId(type) {
+            return type.id;
+        }
+        function containsType(types, type) {
+            return ts.binarySearch(types, type, getTypeId, ts.compareValues) >= 0;
+        }
+        function insertType(types, type) {
+            var index = ts.binarySearch(types, type, getTypeId, ts.compareValues);
+            if (index < 0) {
+                types.splice(~index, 0, type);
+                return true;
+            }
+            return false;
+        }
+        function addTypeToUnion(typeSet, includes, type) {
+            var flags = type.flags;
+            if (flags & 1048576) {
+                return addTypesToUnion(typeSet, includes, type.types);
+            }
+            if (!(flags & 131072)) {
+                includes |= flags & 71041023;
+                if (flags & 66846720)
+                    includes |= 262144;
+                if (type === wildcardType)
+                    includes |= 8388608;
+                if (!strictNullChecks && flags & 98304) {
+                    if (!(ts.getObjectFlags(type) & 524288))
+                        includes |= 4194304;
+                }
+                else {
+                    var len = typeSet.length;
+                    var index = len && type.id > typeSet[len - 1].id ? ~len : ts.binarySearch(typeSet, type, getTypeId, ts.compareValues);
+                    if (index < 0) {
+                        typeSet.splice(~index, 0, type);
+                    }
+                }
+            }
+            return includes;
+        }
+        function addTypesToUnion(typeSet, includes, types) {
+            for (var _i = 0, types_9 = types; _i < types_9.length; _i++) {
+                var type = types_9[_i];
+                includes = addTypeToUnion(typeSet, includes, type);
+            }
+            return includes;
+        }
+        function isSetOfLiteralsFromSameEnum(types) {
+            var first = types[0];
+            if (first.flags & 1024) {
+                var firstEnum = getParentOfSymbol(first.symbol);
+                for (var i = 1; i < types.length; i++) {
+                    var other = types[i];
+                    if (!(other.flags & 1024) || (firstEnum !== getParentOfSymbol(other.symbol))) {
+                        return false;
+                    }
+                }
+                return true;
+            }
+            return false;
+        }
+        function removeSubtypes(types, primitivesOnly) {
+            var len = types.length;
+            if (len === 0 || isSetOfLiteralsFromSameEnum(types)) {
+                return true;
+            }
+            var i = len;
+            var count = 0;
+            while (i > 0) {
+                i--;
+                var source = types[i];
+                for (var _i = 0, types_10 = types; _i < types_10.length; _i++) {
+                    var target = types_10[_i];
+                    if (source !== target) {
+                        if (count === 100000) {
+                            var estimatedCount = (count / (len - i)) * len;
+                            if (estimatedCount > (primitivesOnly ? 25000000 : 1000000)) {
+                                error(currentNode, ts.Diagnostics.Expression_produces_a_union_type_that_is_too_complex_to_represent);
+                                return false;
+                            }
+                        }
+                        count++;
+                        if (isTypeRelatedTo(source, target, strictSubtypeRelation) && (!(ts.getObjectFlags(getTargetType(source)) & 1) ||
+                            !(ts.getObjectFlags(getTargetType(target)) & 1) ||
+                            isTypeDerivedFrom(source, target))) {
+                            ts.orderedRemoveItemAt(types, i);
+                            break;
+                        }
+                    }
+                }
+            }
+            return true;
+        }
+        function removeRedundantLiteralTypes(types, includes) {
+            var i = types.length;
+            while (i > 0) {
+                i--;
+                var t = types[i];
+                var remove = t.flags & 128 && includes & 4 ||
+                    t.flags & 256 && includes & 8 ||
+                    t.flags & 2048 && includes & 64 ||
+                    t.flags & 8192 && includes & 4096 ||
+                    isFreshLiteralType(t) && containsType(types, t.regularType);
+                if (remove) {
+                    ts.orderedRemoveItemAt(types, i);
+                }
+            }
+        }
+        function getUnionType(types, unionReduction, aliasSymbol, aliasTypeArguments) {
+            if (unionReduction === void 0) { unionReduction = 1; }
+            if (types.length === 0) {
+                return neverType;
+            }
+            if (types.length === 1) {
+                return types[0];
+            }
+            var typeSet = [];
+            var includes = addTypesToUnion(typeSet, 0, types);
+            if (unionReduction !== 0) {
+                if (includes & 3) {
+                    return includes & 1 ? includes & 8388608 ? wildcardType : anyType : unknownType;
+                }
+                switch (unionReduction) {
+                    case 1:
+                        if (includes & (2944 | 8192)) {
+                            removeRedundantLiteralTypes(typeSet, includes);
+                        }
+                        break;
+                    case 2:
+                        if (!removeSubtypes(typeSet, !(includes & 262144))) {
+                            return errorType;
+                        }
+                        break;
+                }
+                if (typeSet.length === 0) {
+                    return includes & 65536 ? includes & 4194304 ? nullType : nullWideningType :
+                        includes & 32768 ? includes & 4194304 ? undefinedType : undefinedWideningType :
+                            neverType;
+                }
+            }
+            var objectFlags = (includes & 66994211 ? 0 : 262144) |
+                (includes & 2097152 ? 268435456 : 0);
+            return getUnionTypeFromSortedList(typeSet, objectFlags, aliasSymbol, aliasTypeArguments);
+        }
+        function getUnionTypePredicate(signatures) {
+            var first;
+            var types = [];
+            for (var _i = 0, signatures_6 = signatures; _i < signatures_6.length; _i++) {
+                var sig = signatures_6[_i];
+                var pred = getTypePredicateOfSignature(sig);
+                if (!pred || pred.kind === 2 || pred.kind === 3) {
+                    continue;
+                }
+                if (first) {
+                    if (!typePredicateKindsMatch(first, pred)) {
+                        return undefined;
+                    }
+                }
+                else {
+                    first = pred;
+                }
+                types.push(pred.type);
+            }
+            if (!first) {
+                return undefined;
+            }
+            var unionType = getUnionType(types);
+            return createTypePredicate(first.kind, first.parameterName, first.parameterIndex, unionType);
+        }
+        function typePredicateKindsMatch(a, b) {
+            return a.kind === b.kind && a.parameterIndex === b.parameterIndex;
+        }
+        function getUnionTypeFromSortedList(types, objectFlags, aliasSymbol, aliasTypeArguments) {
+            if (types.length === 0) {
+                return neverType;
+            }
+            if (types.length === 1) {
+                return types[0];
+            }
+            var id = getTypeListId(types);
+            var type = unionTypes.get(id);
+            if (!type) {
+                type = createType(1048576);
+                unionTypes.set(id, type);
+                type.objectFlags = objectFlags | getPropagatingFlagsOfTypes(types, 98304);
+                type.types = types;
+                type.aliasSymbol = aliasSymbol;
+                type.aliasTypeArguments = aliasTypeArguments;
+            }
+            return type;
+        }
+        function getTypeFromUnionTypeNode(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedType) {
+                var aliasSymbol = getAliasSymbolForTypeNode(node);
+                links.resolvedType = getUnionType(ts.map(node.types, getTypeFromTypeNode), 1, aliasSymbol, getTypeArgumentsForAliasSymbol(aliasSymbol));
+            }
+            return links.resolvedType;
+        }
+        function addTypeToIntersection(typeSet, includes, type) {
+            var flags = type.flags;
+            if (flags & 2097152) {
+                return addTypesToIntersection(typeSet, includes, type.types);
+            }
+            if (isEmptyAnonymousObjectType(type)) {
+                if (!(includes & 16777216)) {
+                    includes |= 16777216;
+                    typeSet.set(type.id.toString(), type);
+                }
+            }
+            else {
+                if (flags & 3) {
+                    if (type === wildcardType)
+                        includes |= 8388608;
+                }
+                else if ((strictNullChecks || !(flags & 98304)) && !typeSet.has(type.id.toString())) {
+                    if (type.flags & 109440 && includes & 109440) {
+                        includes |= 67108864;
+                    }
+                    typeSet.set(type.id.toString(), type);
+                }
+                includes |= flags & 71041023;
+            }
+            return includes;
+        }
+        function addTypesToIntersection(typeSet, includes, types) {
+            for (var _i = 0, types_11 = types; _i < types_11.length; _i++) {
+                var type = types_11[_i];
+                includes = addTypeToIntersection(typeSet, includes, getRegularTypeOfLiteralType(type));
+            }
+            return includes;
+        }
+        function removeRedundantPrimitiveTypes(types, includes) {
+            var i = types.length;
+            while (i > 0) {
+                i--;
+                var t = types[i];
+                var remove = t.flags & 4 && includes & 128 ||
+                    t.flags & 8 && includes & 256 ||
+                    t.flags & 64 && includes & 2048 ||
+                    t.flags & 4096 && includes & 8192;
+                if (remove) {
+                    ts.orderedRemoveItemAt(types, i);
+                }
+            }
+        }
+        function eachUnionContains(unionTypes, type) {
+            for (var _i = 0, unionTypes_1 = unionTypes; _i < unionTypes_1.length; _i++) {
+                var u = unionTypes_1[_i];
+                if (!containsType(u.types, type)) {
+                    var primitive = type.flags & 128 ? stringType :
+                        type.flags & 256 ? numberType :
+                            type.flags & 2048 ? bigintType :
+                                type.flags & 8192 ? esSymbolType :
+                                    undefined;
+                    if (!primitive || !containsType(u.types, primitive)) {
+                        return false;
+                    }
+                }
+            }
+            return true;
+        }
+        function extractIrreducible(types, flag) {
+            if (ts.every(types, function (t) { return !!(t.flags & 1048576) && ts.some(t.types, function (tt) { return !!(tt.flags & flag); }); })) {
+                for (var i = 0; i < types.length; i++) {
+                    types[i] = filterType(types[i], function (t) { return !(t.flags & flag); });
+                }
+                return true;
+            }
+            return false;
+        }
+        function intersectUnionsOfPrimitiveTypes(types) {
+            var unionTypes;
+            var index = ts.findIndex(types, function (t) { return !!(ts.getObjectFlags(t) & 262144); });
+            if (index < 0) {
+                return false;
+            }
+            var i = index + 1;
+            while (i < types.length) {
+                var t = types[i];
+                if (ts.getObjectFlags(t) & 262144) {
+                    (unionTypes || (unionTypes = [types[index]])).push(t);
+                    ts.orderedRemoveItemAt(types, i);
+                }
+                else {
+                    i++;
+                }
+            }
+            if (!unionTypes) {
+                return false;
+            }
+            var checked = [];
+            var result = [];
+            for (var _i = 0, unionTypes_2 = unionTypes; _i < unionTypes_2.length; _i++) {
+                var u = unionTypes_2[_i];
+                for (var _a = 0, _b = u.types; _a < _b.length; _a++) {
+                    var t = _b[_a];
+                    if (insertType(checked, t)) {
+                        if (eachUnionContains(unionTypes, t)) {
+                            insertType(result, t);
+                        }
+                    }
+                }
+            }
+            types[index] = getUnionTypeFromSortedList(result, 262144);
+            return true;
+        }
+        function createIntersectionType(types, aliasSymbol, aliasTypeArguments) {
+            var result = createType(2097152);
+            result.objectFlags = getPropagatingFlagsOfTypes(types, 98304);
+            result.types = types;
+            result.aliasSymbol = aliasSymbol;
+            result.aliasTypeArguments = aliasTypeArguments;
+            return result;
+        }
+        function getIntersectionType(types, aliasSymbol, aliasTypeArguments) {
+            var typeMembershipMap = ts.createMap();
+            var includes = addTypesToIntersection(typeMembershipMap, 0, types);
+            var typeSet = ts.arrayFrom(typeMembershipMap.values());
+            if (includes & 131072 ||
+                strictNullChecks && includes & 98304 && includes & (524288 | 67108864 | 16777216) ||
+                includes & 67108864 && includes & (67238908 & ~67108864) ||
+                includes & 132 && includes & (67238908 & ~132) ||
+                includes & 296 && includes & (67238908 & ~296) ||
+                includes & 2112 && includes & (67238908 & ~2112) ||
+                includes & 12288 && includes & (67238908 & ~12288) ||
+                includes & 49152 && includes & (67238908 & ~49152)) {
+                return neverType;
+            }
+            if (includes & 1) {
+                return includes & 8388608 ? wildcardType : anyType;
+            }
+            if (!strictNullChecks && includes & 98304) {
+                return includes & 32768 ? undefinedType : nullType;
+            }
+            if (includes & 4 && includes & 128 ||
+                includes & 8 && includes & 256 ||
+                includes & 64 && includes & 2048 ||
+                includes & 4096 && includes & 8192) {
+                removeRedundantPrimitiveTypes(typeSet, includes);
+            }
+            if (includes & 16777216 && includes & 524288) {
+                ts.orderedRemoveItemAt(typeSet, ts.findIndex(typeSet, isEmptyAnonymousObjectType));
+            }
+            if (typeSet.length === 0) {
+                return unknownType;
+            }
+            if (typeSet.length === 1) {
+                return typeSet[0];
+            }
+            var id = getTypeListId(typeSet);
+            var result = intersectionTypes.get(id);
+            if (!result) {
+                if (includes & 1048576) {
+                    if (intersectUnionsOfPrimitiveTypes(typeSet)) {
+                        result = getIntersectionType(typeSet, aliasSymbol, aliasTypeArguments);
+                    }
+                    else if (extractIrreducible(typeSet, 32768)) {
+                        result = getUnionType([getIntersectionType(typeSet), undefinedType], 1, aliasSymbol, aliasTypeArguments);
+                    }
+                    else if (extractIrreducible(typeSet, 65536)) {
+                        result = getUnionType([getIntersectionType(typeSet), nullType], 1, aliasSymbol, aliasTypeArguments);
+                    }
+                    else {
+                        var size = ts.reduceLeft(typeSet, function (n, t) { return n * (t.flags & 1048576 ? t.types.length : 1); }, 1);
+                        if (size >= 100000) {
+                            error(currentNode, ts.Diagnostics.Expression_produces_a_union_type_that_is_too_complex_to_represent);
+                            return errorType;
+                        }
+                        var unionIndex_1 = ts.findIndex(typeSet, function (t) { return (t.flags & 1048576) !== 0; });
+                        var unionType = typeSet[unionIndex_1];
+                        result = getUnionType(ts.map(unionType.types, function (t) { return getIntersectionType(ts.replaceElement(typeSet, unionIndex_1, t)); }), 1, aliasSymbol, aliasTypeArguments);
+                    }
+                }
+                else {
+                    result = createIntersectionType(typeSet, aliasSymbol, aliasTypeArguments);
+                }
+                intersectionTypes.set(id, result);
+            }
+            return result;
+        }
+        function getTypeFromIntersectionTypeNode(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedType) {
+                var aliasSymbol = getAliasSymbolForTypeNode(node);
+                links.resolvedType = getIntersectionType(ts.map(node.types, getTypeFromTypeNode), aliasSymbol, getTypeArgumentsForAliasSymbol(aliasSymbol));
+            }
+            return links.resolvedType;
+        }
+        function createIndexType(type, stringsOnly) {
+            var result = createType(4194304);
+            result.type = type;
+            result.stringsOnly = stringsOnly;
+            return result;
+        }
+        function getIndexTypeForGenericType(type, stringsOnly) {
+            return stringsOnly ?
+                type.resolvedStringIndexType || (type.resolvedStringIndexType = createIndexType(type, true)) :
+                type.resolvedIndexType || (type.resolvedIndexType = createIndexType(type, false));
+        }
+        function getLiteralTypeFromPropertyName(name) {
+            if (ts.isPrivateIdentifier(name)) {
+                return neverType;
+            }
+            return ts.isIdentifier(name) ? getLiteralType(ts.unescapeLeadingUnderscores(name.escapedText)) :
+                getRegularTypeOfLiteralType(ts.isComputedPropertyName(name) ? checkComputedPropertyName(name) : checkExpression(name));
+        }
+        function getBigIntLiteralType(node) {
+            return getLiteralType({
+                negative: false,
+                base10Value: ts.parsePseudoBigInt(node.text)
+            });
+        }
+        function getLiteralTypeFromProperty(prop, include) {
+            if (!(ts.getDeclarationModifierFlagsFromSymbol(prop) & 24)) {
+                var type = getSymbolLinks(getLateBoundSymbol(prop)).nameType;
+                if (!type && !ts.isKnownSymbol(prop)) {
+                    if (prop.escapedName === "default") {
+                        type = getLiteralType("default");
+                    }
+                    else {
+                        var name = prop.valueDeclaration && ts.getNameOfDeclaration(prop.valueDeclaration);
+                        type = name && getLiteralTypeFromPropertyName(name) || getLiteralType(ts.symbolName(prop));
+                    }
+                }
+                if (type && type.flags & include) {
+                    return type;
+                }
+            }
+            return neverType;
+        }
+        function getLiteralTypeFromProperties(type, include) {
+            return getUnionType(ts.map(getPropertiesOfType(type), function (p) { return getLiteralTypeFromProperty(p, include); }));
+        }
+        function getNonEnumNumberIndexInfo(type) {
+            var numberIndexInfo = getIndexInfoOfType(type, 1);
+            return numberIndexInfo !== enumNumberIndexInfo ? numberIndexInfo : undefined;
+        }
+        function getIndexType(type, stringsOnly, noIndexSignatures) {
+            if (stringsOnly === void 0) { stringsOnly = keyofStringsOnly; }
+            type = getReducedType(type);
+            return type.flags & 1048576 ? getIntersectionType(ts.map(type.types, function (t) { return getIndexType(t, stringsOnly, noIndexSignatures); })) :
+                type.flags & 2097152 ? getUnionType(ts.map(type.types, function (t) { return getIndexType(t, stringsOnly, noIndexSignatures); })) :
+                    maybeTypeOfKind(type, 58982400) ? getIndexTypeForGenericType(type, stringsOnly) :
+                        ts.getObjectFlags(type) & 32 ? filterType(getConstraintTypeFromMappedType(type), function (t) { return !(noIndexSignatures && t.flags & (1 | 4)); }) :
+                            type === wildcardType ? wildcardType :
+                                type.flags & 2 ? neverType :
+                                    type.flags & (1 | 131072) ? keyofConstraintType :
+                                        stringsOnly ? !noIndexSignatures && getIndexInfoOfType(type, 0) ? stringType : getLiteralTypeFromProperties(type, 128) :
+                                            !noIndexSignatures && getIndexInfoOfType(type, 0) ? getUnionType([stringType, numberType, getLiteralTypeFromProperties(type, 8192)]) :
+                                                getNonEnumNumberIndexInfo(type) ? getUnionType([numberType, getLiteralTypeFromProperties(type, 128 | 8192)]) :
+                                                    getLiteralTypeFromProperties(type, 8576);
+        }
+        function getExtractStringType(type) {
+            if (keyofStringsOnly) {
+                return type;
+            }
+            var extractTypeAlias = getGlobalExtractSymbol();
+            return extractTypeAlias ? getTypeAliasInstantiation(extractTypeAlias, [type, stringType]) : stringType;
+        }
+        function getIndexTypeOrString(type) {
+            var indexType = getExtractStringType(getIndexType(type));
+            return indexType.flags & 131072 ? stringType : indexType;
+        }
+        function getTypeFromTypeOperatorNode(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedType) {
+                switch (node.operator) {
+                    case 134:
+                        links.resolvedType = getIndexType(getTypeFromTypeNode(node.type));
+                        break;
+                    case 147:
+                        links.resolvedType = node.type.kind === 144
+                            ? getESSymbolLikeTypeForNode(ts.walkUpParenthesizedTypes(node.parent))
+                            : errorType;
+                        break;
+                    case 138:
+                        links.resolvedType = getTypeFromTypeNode(node.type);
+                        break;
+                    default:
+                        throw ts.Debug.assertNever(node.operator);
+                }
+            }
+            return links.resolvedType;
+        }
+        function createIndexedAccessType(objectType, indexType) {
+            var type = createType(8388608);
+            type.objectType = objectType;
+            type.indexType = indexType;
+            return type;
+        }
+        function isJSLiteralType(type) {
+            if (noImplicitAny) {
+                return false;
+            }
+            if (ts.getObjectFlags(type) & 16384) {
+                return true;
+            }
+            if (type.flags & 1048576) {
+                return ts.every(type.types, isJSLiteralType);
+            }
+            if (type.flags & 2097152) {
+                return ts.some(type.types, isJSLiteralType);
+            }
+            if (type.flags & 63176704) {
+                return isJSLiteralType(getResolvedBaseConstraint(type));
+            }
+            return false;
+        }
+        function getPropertyNameFromIndex(indexType, accessNode) {
+            var accessExpression = accessNode && accessNode.kind === 195 ? accessNode : undefined;
+            return isTypeUsableAsPropertyName(indexType) ?
+                getPropertyNameFromType(indexType) :
+                accessExpression && checkThatExpressionIsProperSymbolReference(accessExpression.argumentExpression, indexType, false) ?
+                    ts.getPropertyNameForKnownSymbolName(ts.idText(accessExpression.argumentExpression.name)) :
+                    accessNode && ts.isPropertyName(accessNode) ?
+                        ts.getPropertyNameForPropertyNameNode(accessNode) :
+                        undefined;
+        }
+        function getPropertyTypeForIndexType(originalObjectType, objectType, indexType, fullIndexType, suppressNoImplicitAnyError, accessNode, accessFlags) {
+            var accessExpression = accessNode && accessNode.kind === 195 ? accessNode : undefined;
+            var propName = accessNode && ts.isPrivateIdentifier(accessNode) ? undefined : getPropertyNameFromIndex(indexType, accessNode);
+            if (propName !== undefined) {
+                var prop = getPropertyOfType(objectType, propName);
+                if (prop) {
+                    if (accessExpression) {
+                        markPropertyAsReferenced(prop, accessExpression, accessExpression.expression.kind === 104);
+                        if (isAssignmentToReadonlyEntity(accessExpression, prop, ts.getAssignmentTargetKind(accessExpression))) {
+                            error(accessExpression.argumentExpression, ts.Diagnostics.Cannot_assign_to_0_because_it_is_a_read_only_property, symbolToString(prop));
+                            return undefined;
+                        }
+                        if (accessFlags & 4) {
+                            getNodeLinks(accessNode).resolvedSymbol = prop;
+                        }
+                    }
+                    var propType = getTypeOfSymbol(prop);
+                    return accessExpression && ts.getAssignmentTargetKind(accessExpression) !== 1 ?
+                        getFlowTypeOfReference(accessExpression, propType) :
+                        propType;
+                }
+                if (everyType(objectType, isTupleType) && isNumericLiteralName(propName) && +propName >= 0) {
+                    if (accessNode && everyType(objectType, function (t) { return !t.target.hasRestElement; }) && !(accessFlags & 8)) {
+                        var indexNode = getIndexNodeForAccessExpression(accessNode);
+                        if (isTupleType(objectType)) {
+                            error(indexNode, ts.Diagnostics.Tuple_type_0_of_length_1_has_no_element_at_index_2, typeToString(objectType), getTypeReferenceArity(objectType), ts.unescapeLeadingUnderscores(propName));
+                        }
+                        else {
+                            error(indexNode, ts.Diagnostics.Property_0_does_not_exist_on_type_1, ts.unescapeLeadingUnderscores(propName), typeToString(objectType));
+                        }
+                    }
+                    errorIfWritingToReadonlyIndex(getIndexInfoOfType(objectType, 1));
+                    return mapType(objectType, function (t) { return getRestTypeOfTupleType(t) || undefinedType; });
+                }
+            }
+            if (!(indexType.flags & 98304) && isTypeAssignableToKind(indexType, 132 | 296 | 12288)) {
+                if (objectType.flags & (1 | 131072)) {
+                    return objectType;
+                }
+                var stringIndexInfo = getIndexInfoOfType(objectType, 0);
+                var indexInfo = isTypeAssignableToKind(indexType, 296) && getIndexInfoOfType(objectType, 1) || stringIndexInfo;
+                if (indexInfo) {
+                    if (accessFlags & 1 && indexInfo === stringIndexInfo) {
+                        if (accessExpression) {
+                            error(accessExpression, ts.Diagnostics.Type_0_cannot_be_used_to_index_type_1, typeToString(indexType), typeToString(originalObjectType));
+                        }
+                        return undefined;
+                    }
+                    if (accessNode && !isTypeAssignableToKind(indexType, 4 | 8)) {
+                        var indexNode = getIndexNodeForAccessExpression(accessNode);
+                        error(indexNode, ts.Diagnostics.Type_0_cannot_be_used_as_an_index_type, typeToString(indexType));
+                        return indexInfo.type;
+                    }
+                    errorIfWritingToReadonlyIndex(indexInfo);
+                    return indexInfo.type;
+                }
+                if (indexType.flags & 131072) {
+                    return neverType;
+                }
+                if (isJSLiteralType(objectType)) {
+                    return anyType;
+                }
+                if (accessExpression && !isConstEnumObjectType(objectType)) {
+                    if (objectType.symbol === globalThisSymbol && propName !== undefined && globalThisSymbol.exports.has(propName) && (globalThisSymbol.exports.get(propName).flags & 418)) {
+                        error(accessExpression, ts.Diagnostics.Property_0_does_not_exist_on_type_1, ts.unescapeLeadingUnderscores(propName), typeToString(objectType));
+                    }
+                    else if (noImplicitAny && !compilerOptions.suppressImplicitAnyIndexErrors && !suppressNoImplicitAnyError) {
+                        if (propName !== undefined && typeHasStaticProperty(propName, objectType)) {
+                            error(accessExpression, ts.Diagnostics.Property_0_is_a_static_member_of_type_1, propName, typeToString(objectType));
+                        }
+                        else if (getIndexTypeOfType(objectType, 1)) {
+                            error(accessExpression.argumentExpression, ts.Diagnostics.Element_implicitly_has_an_any_type_because_index_expression_is_not_of_type_number);
+                        }
+                        else {
+                            var suggestion = void 0;
+                            if (propName !== undefined && (suggestion = getSuggestionForNonexistentProperty(propName, objectType))) {
+                                if (suggestion !== undefined) {
+                                    error(accessExpression.argumentExpression, ts.Diagnostics.Property_0_does_not_exist_on_type_1_Did_you_mean_2, propName, typeToString(objectType), suggestion);
+                                }
+                            }
+                            else {
+                                var suggestion_1 = getSuggestionForNonexistentIndexSignature(objectType, accessExpression, indexType);
+                                if (suggestion_1 !== undefined) {
+                                    error(accessExpression, ts.Diagnostics.Element_implicitly_has_an_any_type_because_type_0_has_no_index_signature_Did_you_mean_to_call_1, typeToString(objectType), suggestion_1);
+                                }
+                                else {
+                                    var errorInfo = void 0;
+                                    if (indexType.flags & 1024) {
+                                        errorInfo = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.Property_0_does_not_exist_on_type_1, "[" + typeToString(indexType) + "]", typeToString(objectType));
+                                    }
+                                    else if (indexType.flags & 8192) {
+                                        var symbolName_2 = getFullyQualifiedName(indexType.symbol, accessExpression);
+                                        errorInfo = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.Property_0_does_not_exist_on_type_1, "[" + symbolName_2 + "]", typeToString(objectType));
+                                    }
+                                    else if (indexType.flags & 128) {
+                                        errorInfo = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.Property_0_does_not_exist_on_type_1, indexType.value, typeToString(objectType));
+                                    }
+                                    else if (indexType.flags & 256) {
+                                        errorInfo = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.Property_0_does_not_exist_on_type_1, indexType.value, typeToString(objectType));
+                                    }
+                                    else if (indexType.flags & (8 | 4)) {
+                                        errorInfo = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.No_index_signature_with_a_parameter_of_type_0_was_found_on_type_1, typeToString(indexType), typeToString(objectType));
+                                    }
+                                    errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.Element_implicitly_has_an_any_type_because_expression_of_type_0_can_t_be_used_to_index_type_1, typeToString(fullIndexType), typeToString(objectType));
+                                    diagnostics.add(ts.createDiagnosticForNodeFromMessageChain(accessExpression, errorInfo));
+                                }
+                            }
+                        }
+                    }
+                    return undefined;
+                }
+            }
+            if (isJSLiteralType(objectType)) {
+                return anyType;
+            }
+            if (accessNode) {
+                var indexNode = getIndexNodeForAccessExpression(accessNode);
+                if (indexType.flags & (128 | 256)) {
+                    error(indexNode, ts.Diagnostics.Property_0_does_not_exist_on_type_1, "" + indexType.value, typeToString(objectType));
+                }
+                else if (indexType.flags & (4 | 8)) {
+                    error(indexNode, ts.Diagnostics.Type_0_has_no_matching_index_signature_for_type_1, typeToString(objectType), typeToString(indexType));
+                }
+                else {
+                    error(indexNode, ts.Diagnostics.Type_0_cannot_be_used_as_an_index_type, typeToString(indexType));
+                }
+            }
+            if (isTypeAny(indexType)) {
+                return indexType;
+            }
+            return undefined;
+            function errorIfWritingToReadonlyIndex(indexInfo) {
+                if (indexInfo && indexInfo.isReadonly && accessExpression && (ts.isAssignmentTarget(accessExpression) || ts.isDeleteTarget(accessExpression))) {
+                    error(accessExpression, ts.Diagnostics.Index_signature_in_type_0_only_permits_reading, typeToString(objectType));
+                }
+            }
+        }
+        function getIndexNodeForAccessExpression(accessNode) {
+            return accessNode.kind === 195 ? accessNode.argumentExpression :
+                accessNode.kind === 185 ? accessNode.indexType :
+                    accessNode.kind === 154 ? accessNode.expression :
+                        accessNode;
+        }
+        function isGenericObjectType(type) {
+            if (type.flags & 3145728) {
+                if (!(type.objectFlags & 4194304)) {
+                    type.objectFlags |= 4194304 |
+                        (ts.some(type.types, isGenericObjectType) ? 8388608 : 0);
+                }
+                return !!(type.objectFlags & 8388608);
+            }
+            return !!(type.flags & 58982400) || isGenericMappedType(type);
+        }
+        function isGenericIndexType(type) {
+            if (type.flags & 3145728) {
+                if (!(type.objectFlags & 16777216)) {
+                    type.objectFlags |= 16777216 |
+                        (ts.some(type.types, isGenericIndexType) ? 33554432 : 0);
+                }
+                return !!(type.objectFlags & 33554432);
+            }
+            return !!(type.flags & (58982400 | 4194304));
+        }
+        function isThisTypeParameter(type) {
+            return !!(type.flags & 262144 && type.isThisType);
+        }
+        function getSimplifiedType(type, writing) {
+            return type.flags & 8388608 ? getSimplifiedIndexedAccessType(type, writing) :
+                type.flags & 16777216 ? getSimplifiedConditionalType(type, writing) :
+                    type;
+        }
+        function distributeIndexOverObjectType(objectType, indexType, writing) {
+            if (objectType.flags & 3145728) {
+                var types = ts.map(objectType.types, function (t) { return getSimplifiedType(getIndexedAccessType(t, indexType), writing); });
+                return objectType.flags & 2097152 || writing ? getIntersectionType(types) : getUnionType(types);
+            }
+        }
+        function distributeObjectOverIndexType(objectType, indexType, writing) {
+            if (indexType.flags & 1048576) {
+                var types = ts.map(indexType.types, function (t) { return getSimplifiedType(getIndexedAccessType(objectType, t), writing); });
+                return writing ? getIntersectionType(types) : getUnionType(types);
+            }
+        }
+        function unwrapSubstitution(type) {
+            if (type.flags & 33554432) {
+                return type.substitute;
+            }
+            return type;
+        }
+        function getSimplifiedIndexedAccessType(type, writing) {
+            var cache = writing ? "simplifiedForWriting" : "simplifiedForReading";
+            if (type[cache]) {
+                return type[cache] === circularConstraintType ? type : type[cache];
+            }
+            type[cache] = circularConstraintType;
+            var objectType = unwrapSubstitution(getSimplifiedType(type.objectType, writing));
+            var indexType = getSimplifiedType(type.indexType, writing);
+            var distributedOverIndex = distributeObjectOverIndexType(objectType, indexType, writing);
+            if (distributedOverIndex) {
+                return type[cache] = distributedOverIndex;
+            }
+            if (!(indexType.flags & 63176704)) {
+                var distributedOverObject = distributeIndexOverObjectType(objectType, indexType, writing);
+                if (distributedOverObject) {
+                    return type[cache] = distributedOverObject;
+                }
+            }
+            if (isGenericMappedType(objectType)) {
+                return type[cache] = mapType(substituteIndexedMappedType(objectType, type.indexType), function (t) { return getSimplifiedType(t, writing); });
+            }
+            return type[cache] = type;
+        }
+        function getSimplifiedConditionalType(type, writing) {
+            var checkType = type.checkType;
+            var extendsType = type.extendsType;
+            var trueType = getTrueTypeFromConditionalType(type);
+            var falseType = getFalseTypeFromConditionalType(type);
+            if (falseType.flags & 131072 && getActualTypeVariable(trueType) === getActualTypeVariable(checkType)) {
+                if (checkType.flags & 1 || isTypeAssignableTo(getRestrictiveInstantiation(checkType), getRestrictiveInstantiation(extendsType))) {
+                    return getSimplifiedType(trueType, writing);
+                }
+                else if (isIntersectionEmpty(checkType, extendsType)) {
+                    return neverType;
+                }
+            }
+            else if (trueType.flags & 131072 && getActualTypeVariable(falseType) === getActualTypeVariable(checkType)) {
+                if (!(checkType.flags & 1) && isTypeAssignableTo(getRestrictiveInstantiation(checkType), getRestrictiveInstantiation(extendsType))) {
+                    return neverType;
+                }
+                else if (checkType.flags & 1 || isIntersectionEmpty(checkType, extendsType)) {
+                    return getSimplifiedType(falseType, writing);
+                }
+            }
+            return type;
+        }
+        function isIntersectionEmpty(type1, type2) {
+            return !!(getUnionType([intersectTypes(type1, type2), neverType]).flags & 131072);
+        }
+        function substituteIndexedMappedType(objectType, index) {
+            var mapper = createTypeMapper([getTypeParameterFromMappedType(objectType)], [index]);
+            var templateMapper = combineTypeMappers(objectType.mapper, mapper);
+            return instantiateType(getTemplateTypeFromMappedType(objectType), templateMapper);
+        }
+        function getIndexedAccessType(objectType, indexType, accessNode) {
+            return getIndexedAccessTypeOrUndefined(objectType, indexType, accessNode, 0) || (accessNode ? errorType : unknownType);
+        }
+        function getIndexedAccessTypeOrUndefined(objectType, indexType, accessNode, accessFlags) {
+            if (accessFlags === void 0) { accessFlags = 0; }
+            if (objectType === wildcardType || indexType === wildcardType) {
+                return wildcardType;
+            }
+            if (isStringIndexSignatureOnlyType(objectType) && !(indexType.flags & 98304) && isTypeAssignableToKind(indexType, 4 | 8)) {
+                indexType = stringType;
+            }
+            if (isGenericIndexType(indexType) || !(accessNode && accessNode.kind !== 185) && isGenericObjectType(objectType)) {
+                if (objectType.flags & 3) {
+                    return objectType;
+                }
+                var id = objectType.id + "," + indexType.id;
+                var type = indexedAccessTypes.get(id);
+                if (!type) {
+                    indexedAccessTypes.set(id, type = createIndexedAccessType(objectType, indexType));
+                }
+                return type;
+            }
+            var apparentObjectType = getReducedApparentType(objectType);
+            if (indexType.flags & 1048576 && !(indexType.flags & 16)) {
+                var propTypes = [];
+                var wasMissingProp = false;
+                for (var _i = 0, _a = indexType.types; _i < _a.length; _i++) {
+                    var t = _a[_i];
+                    var propType = getPropertyTypeForIndexType(objectType, apparentObjectType, t, indexType, wasMissingProp, accessNode, accessFlags);
+                    if (propType) {
+                        propTypes.push(propType);
+                    }
+                    else if (!accessNode) {
+                        return undefined;
+                    }
+                    else {
+                        wasMissingProp = true;
+                    }
+                }
+                if (wasMissingProp) {
+                    return undefined;
+                }
+                return accessFlags & 2 ? getIntersectionType(propTypes) : getUnionType(propTypes);
+            }
+            return getPropertyTypeForIndexType(objectType, apparentObjectType, indexType, indexType, false, accessNode, accessFlags | 4);
+        }
+        function getTypeFromIndexedAccessTypeNode(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedType) {
+                var objectType = getTypeFromTypeNode(node.objectType);
+                var indexType = getTypeFromTypeNode(node.indexType);
+                var resolved = getIndexedAccessType(objectType, indexType, node);
+                links.resolvedType = resolved.flags & 8388608 &&
+                    resolved.objectType === objectType &&
+                    resolved.indexType === indexType ?
+                    getConditionalFlowTypeOfType(resolved, node) : resolved;
+            }
+            return links.resolvedType;
+        }
+        function getTypeFromMappedTypeNode(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedType) {
+                var type = createObjectType(32, node.symbol);
+                type.declaration = node;
+                type.aliasSymbol = getAliasSymbolForTypeNode(node);
+                type.aliasTypeArguments = getTypeArgumentsForAliasSymbol(type.aliasSymbol);
+                links.resolvedType = type;
+                getConstraintTypeFromMappedType(type);
+            }
+            return links.resolvedType;
+        }
+        function getActualTypeVariable(type) {
+            if (type.flags & 33554432) {
+                return type.baseType;
+            }
+            if (type.flags & 8388608 && (type.objectType.flags & 33554432 ||
+                type.indexType.flags & 33554432)) {
+                return getIndexedAccessType(getActualTypeVariable(type.objectType), getActualTypeVariable(type.indexType));
+            }
+            return type;
+        }
+        function getConditionalType(root, mapper) {
+            var result;
+            var extraTypes;
+            var _loop_12 = function () {
+                var checkType = instantiateType(root.checkType, mapper);
+                var checkTypeInstantiable = isGenericObjectType(checkType) || isGenericIndexType(checkType);
+                var extendsType = instantiateType(root.extendsType, mapper);
+                if (checkType === wildcardType || extendsType === wildcardType) {
+                    return { value: wildcardType };
+                }
+                var combinedMapper = void 0;
+                if (root.inferTypeParameters) {
+                    var context = createInferenceContext(root.inferTypeParameters, undefined, 0);
+                    if (!checkTypeInstantiable || !ts.some(root.inferTypeParameters, function (t) { return t === extendsType; })) {
+                        inferTypes(context.inferences, checkType, extendsType, 128 | 256);
+                    }
+                    combinedMapper = mergeTypeMappers(mapper, context.mapper);
+                }
+                var inferredExtendsType = combinedMapper ? instantiateType(root.extendsType, combinedMapper) : extendsType;
+                if (!checkTypeInstantiable && !isGenericObjectType(inferredExtendsType) && !isGenericIndexType(inferredExtendsType)) {
+                    if (!(inferredExtendsType.flags & 3) && (checkType.flags & 1 || !isTypeAssignableTo(getPermissiveInstantiation(checkType), getPermissiveInstantiation(inferredExtendsType)))) {
+                        if (checkType.flags & 1) {
+                            (extraTypes || (extraTypes = [])).push(instantiateTypeWithoutDepthIncrease(root.trueType, combinedMapper || mapper));
+                        }
+                        var falseType_1 = root.falseType;
+                        if (falseType_1.flags & 16777216) {
+                            var newRoot = falseType_1.root;
+                            if (newRoot.node.parent === root.node && (!newRoot.isDistributive || newRoot.checkType === root.checkType)) {
+                                root = newRoot;
+                                return "continue";
+                            }
+                        }
+                        result = instantiateTypeWithoutDepthIncrease(falseType_1, mapper);
+                        return "break";
+                    }
+                    if (inferredExtendsType.flags & 3 || isTypeAssignableTo(getRestrictiveInstantiation(checkType), getRestrictiveInstantiation(inferredExtendsType))) {
+                        result = instantiateTypeWithoutDepthIncrease(root.trueType, combinedMapper || mapper);
+                        return "break";
+                    }
+                }
+                var erasedCheckType = getActualTypeVariable(checkType);
+                result = createType(16777216);
+                result.root = root;
+                result.checkType = erasedCheckType;
+                result.extendsType = extendsType;
+                result.mapper = mapper;
+                result.combinedMapper = combinedMapper;
+                result.aliasSymbol = root.aliasSymbol;
+                result.aliasTypeArguments = instantiateTypes(root.aliasTypeArguments, mapper);
+                return "break";
+            };
+            while (true) {
+                var state_4 = _loop_12();
+                if (typeof state_4 === "object")
+                    return state_4.value;
+                if (state_4 === "break")
+                    break;
+            }
+            return extraTypes ? getUnionType(ts.append(extraTypes, result)) : result;
+        }
+        function getTrueTypeFromConditionalType(type) {
+            return type.resolvedTrueType || (type.resolvedTrueType = instantiateType(type.root.trueType, type.mapper));
+        }
+        function getFalseTypeFromConditionalType(type) {
+            return type.resolvedFalseType || (type.resolvedFalseType = instantiateType(type.root.falseType, type.mapper));
+        }
+        function getInferredTrueTypeFromConditionalType(type) {
+            return type.resolvedInferredTrueType || (type.resolvedInferredTrueType = type.combinedMapper ? instantiateType(type.root.trueType, type.combinedMapper) : getTrueTypeFromConditionalType(type));
+        }
+        function getInferTypeParameters(node) {
+            var result;
+            if (node.locals) {
+                node.locals.forEach(function (symbol) {
+                    if (symbol.flags & 262144) {
+                        result = ts.append(result, getDeclaredTypeOfSymbol(symbol));
+                    }
+                });
+            }
+            return result;
+        }
+        function getTypeFromConditionalTypeNode(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedType) {
+                var checkType = getTypeFromTypeNode(node.checkType);
+                var aliasSymbol = getAliasSymbolForTypeNode(node);
+                var aliasTypeArguments = getTypeArgumentsForAliasSymbol(aliasSymbol);
+                var allOuterTypeParameters = getOuterTypeParameters(node, true);
+                var outerTypeParameters = aliasTypeArguments ? allOuterTypeParameters : ts.filter(allOuterTypeParameters, function (tp) { return isTypeParameterPossiblyReferenced(tp, node); });
+                var root = {
+                    node: node,
+                    checkType: checkType,
+                    extendsType: getTypeFromTypeNode(node.extendsType),
+                    trueType: getTypeFromTypeNode(node.trueType),
+                    falseType: getTypeFromTypeNode(node.falseType),
+                    isDistributive: !!(checkType.flags & 262144),
+                    inferTypeParameters: getInferTypeParameters(node),
+                    outerTypeParameters: outerTypeParameters,
+                    instantiations: undefined,
+                    aliasSymbol: aliasSymbol,
+                    aliasTypeArguments: aliasTypeArguments
+                };
+                links.resolvedType = getConditionalType(root, undefined);
+                if (outerTypeParameters) {
+                    root.instantiations = ts.createMap();
+                    root.instantiations.set(getTypeListId(outerTypeParameters), links.resolvedType);
+                }
+            }
+            return links.resolvedType;
+        }
+        function getTypeFromInferTypeNode(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedType) {
+                links.resolvedType = getDeclaredTypeOfTypeParameter(getSymbolOfNode(node.typeParameter));
+            }
+            return links.resolvedType;
+        }
+        function getIdentifierChain(node) {
+            if (ts.isIdentifier(node)) {
+                return [node];
+            }
+            else {
+                return ts.append(getIdentifierChain(node.left), node.right);
+            }
+        }
+        function getTypeFromImportTypeNode(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedType) {
+                if (node.isTypeOf && node.typeArguments) {
+                    error(node, ts.Diagnostics.Type_arguments_cannot_be_used_here);
+                    links.resolvedSymbol = unknownSymbol;
+                    return links.resolvedType = errorType;
+                }
+                if (!ts.isLiteralImportTypeNode(node)) {
+                    error(node.argument, ts.Diagnostics.String_literal_expected);
+                    links.resolvedSymbol = unknownSymbol;
+                    return links.resolvedType = errorType;
+                }
+                var targetMeaning = node.isTypeOf ? 111551 : node.flags & 4194304 ? 111551 | 788968 : 788968;
+                var innerModuleSymbol = resolveExternalModuleName(node, node.argument.literal);
+                if (!innerModuleSymbol) {
+                    links.resolvedSymbol = unknownSymbol;
+                    return links.resolvedType = errorType;
+                }
+                var moduleSymbol = resolveExternalModuleSymbol(innerModuleSymbol, false);
+                if (!ts.nodeIsMissing(node.qualifier)) {
+                    var nameStack = getIdentifierChain(node.qualifier);
+                    var currentNamespace = moduleSymbol;
+                    var current = void 0;
+                    while (current = nameStack.shift()) {
+                        var meaning = nameStack.length ? 1920 : targetMeaning;
+                        var next = getSymbol(getExportsOfSymbol(getMergedSymbol(resolveSymbol(currentNamespace))), current.escapedText, meaning);
+                        if (!next) {
+                            error(current, ts.Diagnostics.Namespace_0_has_no_exported_member_1, getFullyQualifiedName(currentNamespace), ts.declarationNameToString(current));
+                            return links.resolvedType = errorType;
+                        }
+                        getNodeLinks(current).resolvedSymbol = next;
+                        getNodeLinks(current.parent).resolvedSymbol = next;
+                        currentNamespace = next;
+                    }
+                    links.resolvedType = resolveImportSymbolType(node, links, currentNamespace, targetMeaning);
+                }
+                else {
+                    if (moduleSymbol.flags & targetMeaning) {
+                        links.resolvedType = resolveImportSymbolType(node, links, moduleSymbol, targetMeaning);
+                    }
+                    else {
+                        var errorMessage = targetMeaning === 111551
+                            ? ts.Diagnostics.Module_0_does_not_refer_to_a_value_but_is_used_as_a_value_here
+                            : ts.Diagnostics.Module_0_does_not_refer_to_a_type_but_is_used_as_a_type_here_Did_you_mean_typeof_import_0;
+                        error(node, errorMessage, node.argument.literal.text);
+                        links.resolvedSymbol = unknownSymbol;
+                        links.resolvedType = errorType;
+                    }
+                }
+            }
+            return links.resolvedType;
+        }
+        function resolveImportSymbolType(node, links, symbol, meaning) {
+            var resolvedSymbol = resolveSymbol(symbol);
+            links.resolvedSymbol = resolvedSymbol;
+            if (meaning === 111551) {
+                return getTypeOfSymbol(symbol);
+            }
+            else {
+                return getTypeReferenceType(node, resolvedSymbol);
+            }
+        }
+        function getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedType) {
+                var aliasSymbol = getAliasSymbolForTypeNode(node);
+                if (getMembersOfSymbol(node.symbol).size === 0 && !aliasSymbol) {
+                    links.resolvedType = emptyTypeLiteralType;
+                }
+                else {
+                    var type = createObjectType(16, node.symbol);
+                    type.aliasSymbol = aliasSymbol;
+                    type.aliasTypeArguments = getTypeArgumentsForAliasSymbol(aliasSymbol);
+                    if (ts.isJSDocTypeLiteral(node) && node.isArrayType) {
+                        type = createArrayType(type);
+                    }
+                    links.resolvedType = type;
+                }
+            }
+            return links.resolvedType;
+        }
+        function getAliasSymbolForTypeNode(node) {
+            var host = node.parent;
+            while (ts.isParenthesizedTypeNode(host) || ts.isTypeOperatorNode(host) && host.operator === 138) {
+                host = host.parent;
+            }
+            return ts.isTypeAlias(host) ? getSymbolOfNode(host) : undefined;
+        }
+        function getTypeArgumentsForAliasSymbol(symbol) {
+            return symbol ? getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol) : undefined;
+        }
+        function isNonGenericObjectType(type) {
+            return !!(type.flags & 524288) && !isGenericMappedType(type);
+        }
+        function isEmptyObjectTypeOrSpreadsIntoEmptyObject(type) {
+            return isEmptyObjectType(type) || !!(type.flags & (65536 | 32768 | 528 | 296 | 2112 | 132 | 1056 | 67108864 | 4194304));
+        }
+        function isSinglePropertyAnonymousObjectType(type) {
+            return !!(type.flags & 524288) &&
+                !!(ts.getObjectFlags(type) & 16) &&
+                (ts.length(getPropertiesOfType(type)) === 1 || ts.every(getPropertiesOfType(type), function (p) { return !!(p.flags & 16777216); }));
+        }
+        function tryMergeUnionOfObjectTypeAndEmptyObject(type, readonly) {
+            if (type.types.length === 2) {
+                var firstType = type.types[0];
+                var secondType = type.types[1];
+                if (ts.every(type.types, isEmptyObjectTypeOrSpreadsIntoEmptyObject)) {
+                    return isEmptyObjectType(firstType) ? firstType : isEmptyObjectType(secondType) ? secondType : emptyObjectType;
+                }
+                if (isEmptyObjectTypeOrSpreadsIntoEmptyObject(firstType) && isSinglePropertyAnonymousObjectType(secondType)) {
+                    return getAnonymousPartialType(secondType);
+                }
+                if (isEmptyObjectTypeOrSpreadsIntoEmptyObject(secondType) && isSinglePropertyAnonymousObjectType(firstType)) {
+                    return getAnonymousPartialType(firstType);
+                }
+            }
+            function getAnonymousPartialType(type) {
+                var members = ts.createSymbolTable();
+                for (var _i = 0, _a = getPropertiesOfType(type); _i < _a.length; _i++) {
+                    var prop = _a[_i];
+                    if (ts.getDeclarationModifierFlagsFromSymbol(prop) & (8 | 16)) {
+                    }
+                    else if (isSpreadableProperty(prop)) {
+                        var isSetonlyAccessor = prop.flags & 65536 && !(prop.flags & 32768);
+                        var flags = 4 | 16777216;
+                        var result = createSymbol(flags, prop.escapedName, readonly ? 8 : 0);
+                        result.type = isSetonlyAccessor ? undefinedType : getTypeOfSymbol(prop);
+                        result.declarations = prop.declarations;
+                        result.nameType = getSymbolLinks(prop).nameType;
+                        result.syntheticOrigin = prop;
+                        members.set(prop.escapedName, result);
+                    }
+                }
+                var spread = createAnonymousType(type.symbol, members, ts.emptyArray, ts.emptyArray, getIndexInfoOfType(type, 0), getIndexInfoOfType(type, 1));
+                spread.objectFlags |= 128 | 1048576;
+                return spread;
+            }
+        }
+        function getSpreadType(left, right, symbol, objectFlags, readonly) {
+            if (left.flags & 1 || right.flags & 1) {
+                return anyType;
+            }
+            if (left.flags & 2 || right.flags & 2) {
+                return unknownType;
+            }
+            if (left.flags & 131072) {
+                return right;
+            }
+            if (right.flags & 131072) {
+                return left;
+            }
+            if (left.flags & 1048576) {
+                var merged = tryMergeUnionOfObjectTypeAndEmptyObject(left, readonly);
+                if (merged) {
+                    return getSpreadType(merged, right, symbol, objectFlags, readonly);
+                }
+                return mapType(left, function (t) { return getSpreadType(t, right, symbol, objectFlags, readonly); });
+            }
+            if (right.flags & 1048576) {
+                var merged = tryMergeUnionOfObjectTypeAndEmptyObject(right, readonly);
+                if (merged) {
+                    return getSpreadType(left, merged, symbol, objectFlags, readonly);
+                }
+                return mapType(right, function (t) { return getSpreadType(left, t, symbol, objectFlags, readonly); });
+            }
+            if (right.flags & (528 | 296 | 2112 | 132 | 1056 | 67108864 | 4194304)) {
+                return left;
+            }
+            if (isGenericObjectType(left) || isGenericObjectType(right)) {
+                if (isEmptyObjectType(left)) {
+                    return right;
+                }
+                if (left.flags & 2097152) {
+                    var types = left.types;
+                    var lastLeft = types[types.length - 1];
+                    if (isNonGenericObjectType(lastLeft) && isNonGenericObjectType(right)) {
+                        return getIntersectionType(ts.concatenate(types.slice(0, types.length - 1), [getSpreadType(lastLeft, right, symbol, objectFlags, readonly)]));
+                    }
+                }
+                return getIntersectionType([left, right]);
+            }
+            var members = ts.createSymbolTable();
+            var skippedPrivateMembers = ts.createUnderscoreEscapedMap();
+            var stringIndexInfo;
+            var numberIndexInfo;
+            if (left === emptyObjectType) {
+                stringIndexInfo = getIndexInfoOfType(right, 0);
+                numberIndexInfo = getIndexInfoOfType(right, 1);
+            }
+            else {
+                stringIndexInfo = unionSpreadIndexInfos(getIndexInfoOfType(left, 0), getIndexInfoOfType(right, 0));
+                numberIndexInfo = unionSpreadIndexInfos(getIndexInfoOfType(left, 1), getIndexInfoOfType(right, 1));
+            }
+            for (var _i = 0, _a = getPropertiesOfType(right); _i < _a.length; _i++) {
+                var rightProp = _a[_i];
+                if (ts.getDeclarationModifierFlagsFromSymbol(rightProp) & (8 | 16)) {
+                    skippedPrivateMembers.set(rightProp.escapedName, true);
+                }
+                else if (isSpreadableProperty(rightProp)) {
+                    members.set(rightProp.escapedName, getSpreadSymbol(rightProp, readonly));
+                }
+            }
+            for (var _b = 0, _c = getPropertiesOfType(left); _b < _c.length; _b++) {
+                var leftProp = _c[_b];
+                if (skippedPrivateMembers.has(leftProp.escapedName) || !isSpreadableProperty(leftProp)) {
+                    continue;
+                }
+                if (members.has(leftProp.escapedName)) {
+                    var rightProp = members.get(leftProp.escapedName);
+                    var rightType = getTypeOfSymbol(rightProp);
+                    if (rightProp.flags & 16777216) {
+                        var declarations = ts.concatenate(leftProp.declarations, rightProp.declarations);
+                        var flags = 4 | (leftProp.flags & 16777216);
+                        var result = createSymbol(flags, leftProp.escapedName);
+                        result.type = getUnionType([getTypeOfSymbol(leftProp), getTypeWithFacts(rightType, 524288)]);
+                        result.leftSpread = leftProp;
+                        result.rightSpread = rightProp;
+                        result.declarations = declarations;
+                        result.nameType = getSymbolLinks(leftProp).nameType;
+                        members.set(leftProp.escapedName, result);
+                    }
+                }
+                else {
+                    members.set(leftProp.escapedName, getSpreadSymbol(leftProp, readonly));
+                }
+            }
+            var spread = createAnonymousType(symbol, members, ts.emptyArray, ts.emptyArray, getIndexInfoWithReadonly(stringIndexInfo, readonly), getIndexInfoWithReadonly(numberIndexInfo, readonly));
+            spread.objectFlags |= 128 | 1048576 | 1024 | objectFlags;
+            return spread;
+        }
+        function isSpreadableProperty(prop) {
+            return !ts.some(prop.declarations, ts.isPrivateIdentifierPropertyDeclaration) &&
+                (!(prop.flags & (8192 | 32768 | 65536)) ||
+                    !prop.declarations.some(function (decl) { return ts.isClassLike(decl.parent); }));
+        }
+        function getSpreadSymbol(prop, readonly) {
+            var isSetonlyAccessor = prop.flags & 65536 && !(prop.flags & 32768);
+            if (!isSetonlyAccessor && readonly === isReadonlySymbol(prop)) {
+                return prop;
+            }
+            var flags = 4 | (prop.flags & 16777216);
+            var result = createSymbol(flags, prop.escapedName, readonly ? 8 : 0);
+            result.type = isSetonlyAccessor ? undefinedType : getTypeOfSymbol(prop);
+            result.declarations = prop.declarations;
+            result.nameType = getSymbolLinks(prop).nameType;
+            result.syntheticOrigin = prop;
+            return result;
+        }
+        function getIndexInfoWithReadonly(info, readonly) {
+            return info && info.isReadonly !== readonly ? createIndexInfo(info.type, readonly, info.declaration) : info;
+        }
+        function createLiteralType(flags, value, symbol) {
+            var type = createType(flags);
+            type.symbol = symbol;
+            type.value = value;
+            return type;
+        }
+        function getFreshTypeOfLiteralType(type) {
+            if (type.flags & 2944) {
+                if (!type.freshType) {
+                    var freshType = createLiteralType(type.flags, type.value, type.symbol);
+                    freshType.regularType = type;
+                    freshType.freshType = freshType;
+                    type.freshType = freshType;
+                }
+                return type.freshType;
+            }
+            return type;
+        }
+        function getRegularTypeOfLiteralType(type) {
+            return type.flags & 2944 ? type.regularType :
+                type.flags & 1048576 ? (type.regularType || (type.regularType = getUnionType(ts.sameMap(type.types, getRegularTypeOfLiteralType)))) :
+                    type;
+        }
+        function isFreshLiteralType(type) {
+            return !!(type.flags & 2944) && type.freshType === type;
+        }
+        function getLiteralType(value, enumId, symbol) {
+            var qualifier = typeof value === "number" ? "#" : typeof value === "string" ? "@" : "n";
+            var key = (enumId ? enumId : "") + qualifier + (typeof value === "object" ? ts.pseudoBigIntToString(value) : value);
+            var type = literalTypes.get(key);
+            if (!type) {
+                var flags = (typeof value === "number" ? 256 :
+                    typeof value === "string" ? 128 : 2048) |
+                    (enumId ? 1024 : 0);
+                literalTypes.set(key, type = createLiteralType(flags, value, symbol));
+                type.regularType = type;
+            }
+            return type;
+        }
+        function getTypeFromLiteralTypeNode(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedType) {
+                links.resolvedType = getRegularTypeOfLiteralType(checkExpression(node.literal));
+            }
+            return links.resolvedType;
+        }
+        function createUniqueESSymbolType(symbol) {
+            var type = createType(8192);
+            type.symbol = symbol;
+            type.escapedName = "__@" + type.symbol.escapedName + "@" + getSymbolId(type.symbol);
+            return type;
+        }
+        function getESSymbolLikeTypeForNode(node) {
+            if (ts.isValidESSymbolDeclaration(node)) {
+                var symbol = getSymbolOfNode(node);
+                var links = getSymbolLinks(symbol);
+                return links.uniqueESSymbolType || (links.uniqueESSymbolType = createUniqueESSymbolType(symbol));
+            }
+            return esSymbolType;
+        }
+        function getThisType(node) {
+            var container = ts.getThisContainer(node, false);
+            var parent = container && container.parent;
+            if (parent && (ts.isClassLike(parent) || parent.kind === 246)) {
+                if (!ts.hasModifier(container, 32) &&
+                    (!ts.isConstructorDeclaration(container) || ts.isNodeDescendantOf(node, container.body))) {
+                    return getDeclaredTypeOfClassOrInterface(getSymbolOfNode(parent)).thisType;
+                }
+            }
+            if (parent && ts.isObjectLiteralExpression(parent) && ts.isBinaryExpression(parent.parent) && ts.getAssignmentDeclarationKind(parent.parent) === 6) {
+                return getDeclaredTypeOfClassOrInterface(getSymbolOfNode(parent.parent.left).parent).thisType;
+            }
+            var host = node.flags & 4194304 ? ts.getHostSignatureFromJSDoc(node) : undefined;
+            if (host && ts.isFunctionExpression(host) && ts.isBinaryExpression(host.parent) && ts.getAssignmentDeclarationKind(host.parent) === 3) {
+                return getDeclaredTypeOfClassOrInterface(getSymbolOfNode(host.parent.left).parent).thisType;
+            }
+            if (isJSConstructor(container) && ts.isNodeDescendantOf(node, container.body)) {
+                return getDeclaredTypeOfClassOrInterface(getSymbolOfNode(container)).thisType;
+            }
+            error(node, ts.Diagnostics.A_this_type_is_available_only_in_a_non_static_member_of_a_class_or_interface);
+            return errorType;
+        }
+        function getTypeFromThisTypeNode(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedType) {
+                links.resolvedType = getThisType(node);
+            }
+            return links.resolvedType;
+        }
+        function getTypeFromTypeNode(node) {
+            return getConditionalFlowTypeOfType(getTypeFromTypeNodeWorker(node), node);
+        }
+        function getTypeFromTypeNodeWorker(node) {
+            switch (node.kind) {
+                case 125:
+                case 295:
+                case 296:
+                    return anyType;
+                case 148:
+                    return unknownType;
+                case 143:
+                    return stringType;
+                case 140:
+                    return numberType;
+                case 151:
+                    return bigintType;
+                case 128:
+                    return booleanType;
+                case 144:
+                    return esSymbolType;
+                case 110:
+                    return voidType;
+                case 146:
+                    return undefinedType;
+                case 100:
+                    return nullType;
+                case 137:
+                    return neverType;
+                case 141:
+                    return node.flags & 131072 && !noImplicitAny ? anyType : nonPrimitiveType;
+                case 183:
+                case 104:
+                    return getTypeFromThisTypeNode(node);
+                case 187:
+                    return getTypeFromLiteralTypeNode(node);
+                case 169:
+                    return getTypeFromTypeReference(node);
+                case 168:
+                    return node.assertsModifier ? voidType : booleanType;
+                case 216:
+                    return getTypeFromTypeReference(node);
+                case 172:
+                    return getTypeFromTypeQueryNode(node);
+                case 174:
+                case 175:
+                    return getTypeFromArrayOrTupleTypeNode(node);
+                case 176:
+                    return getTypeFromOptionalTypeNode(node);
+                case 178:
+                    return getTypeFromUnionTypeNode(node);
+                case 179:
+                    return getTypeFromIntersectionTypeNode(node);
+                case 297:
+                    return getTypeFromJSDocNullableTypeNode(node);
+                case 299:
+                    return addOptionality(getTypeFromTypeNode(node.type));
+                case 182:
+                case 298:
+                case 294:
+                    return getTypeFromTypeNode(node.type);
+                case 177:
+                    return getElementTypeOfArrayType(getTypeFromTypeNode(node.type)) || errorType;
+                case 301:
+                    return getTypeFromJSDocVariadicType(node);
+                case 170:
+                case 171:
+                case 173:
+                case 304:
+                case 300:
+                case 305:
+                    return getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node);
+                case 184:
+                    return getTypeFromTypeOperatorNode(node);
+                case 185:
+                    return getTypeFromIndexedAccessTypeNode(node);
+                case 186:
+                    return getTypeFromMappedTypeNode(node);
+                case 180:
+                    return getTypeFromConditionalTypeNode(node);
+                case 181:
+                    return getTypeFromInferTypeNode(node);
+                case 188:
+                    return getTypeFromImportTypeNode(node);
+                case 75:
+                case 153:
+                    var symbol = getSymbolAtLocation(node);
+                    return symbol ? getDeclaredTypeOfSymbol(symbol) : errorType;
+                default:
+                    return errorType;
+            }
+        }
+        function instantiateList(items, mapper, instantiator) {
+            if (items && items.length) {
+                for (var i = 0; i < items.length; i++) {
+                    var item = items[i];
+                    var mapped = instantiator(item, mapper);
+                    if (item !== mapped) {
+                        var result = i === 0 ? [] : items.slice(0, i);
+                        result.push(mapped);
+                        for (i++; i < items.length; i++) {
+                            result.push(instantiator(items[i], mapper));
+                        }
+                        return result;
+                    }
+                }
+            }
+            return items;
+        }
+        function instantiateTypes(types, mapper) {
+            return instantiateList(types, mapper, instantiateType);
+        }
+        function instantiateSignatures(signatures, mapper) {
+            return instantiateList(signatures, mapper, instantiateSignature);
+        }
+        function createTypeMapper(sources, targets) {
+            return sources.length === 1 ? makeUnaryTypeMapper(sources[0], targets ? targets[0] : anyType) : makeArrayTypeMapper(sources, targets);
+        }
+        function getMappedType(type, mapper) {
+            switch (mapper.kind) {
+                case 0:
+                    return type === mapper.source ? mapper.target : type;
+                case 1:
+                    var sources = mapper.sources;
+                    var targets = mapper.targets;
+                    for (var i = 0; i < sources.length; i++) {
+                        if (type === sources[i]) {
+                            return targets ? targets[i] : anyType;
+                        }
+                    }
+                    return type;
+                case 2:
+                    return mapper.func(type);
+                case 3:
+                case 4:
+                    var t1 = getMappedType(type, mapper.mapper1);
+                    return t1 !== type && mapper.kind === 3 ? instantiateType(t1, mapper.mapper2) : getMappedType(t1, mapper.mapper2);
+            }
+        }
+        function makeUnaryTypeMapper(source, target) {
+            return { kind: 0, source: source, target: target };
+        }
+        function makeArrayTypeMapper(sources, targets) {
+            return { kind: 1, sources: sources, targets: targets };
+        }
+        function makeFunctionTypeMapper(func) {
+            return { kind: 2, func: func };
+        }
+        function makeCompositeTypeMapper(kind, mapper1, mapper2) {
+            return { kind: kind, mapper1: mapper1, mapper2: mapper2 };
+        }
+        function createTypeEraser(sources) {
+            return createTypeMapper(sources, undefined);
+        }
+        function createBackreferenceMapper(context, index) {
+            return makeFunctionTypeMapper(function (t) { return ts.findIndex(context.inferences, function (info) { return info.typeParameter === t; }) >= index ? unknownType : t; });
+        }
+        function combineTypeMappers(mapper1, mapper2) {
+            return mapper1 ? makeCompositeTypeMapper(3, mapper1, mapper2) : mapper2;
+        }
+        function mergeTypeMappers(mapper1, mapper2) {
+            return mapper1 ? makeCompositeTypeMapper(4, mapper1, mapper2) : mapper2;
+        }
+        function prependTypeMapping(source, target, mapper) {
+            return !mapper ? makeUnaryTypeMapper(source, target) : makeCompositeTypeMapper(4, makeUnaryTypeMapper(source, target), mapper);
+        }
+        function appendTypeMapping(mapper, source, target) {
+            return !mapper ? makeUnaryTypeMapper(source, target) : makeCompositeTypeMapper(4, mapper, makeUnaryTypeMapper(source, target));
+        }
+        function getRestrictiveTypeParameter(tp) {
+            return tp.constraint === unknownType ? tp : tp.restrictiveInstantiation || (tp.restrictiveInstantiation = createTypeParameter(tp.symbol),
+                tp.restrictiveInstantiation.constraint = unknownType,
+                tp.restrictiveInstantiation);
+        }
+        function cloneTypeParameter(typeParameter) {
+            var result = createTypeParameter(typeParameter.symbol);
+            result.target = typeParameter;
+            return result;
+        }
+        function instantiateTypePredicate(predicate, mapper) {
+            return createTypePredicate(predicate.kind, predicate.parameterName, predicate.parameterIndex, instantiateType(predicate.type, mapper));
+        }
+        function instantiateSignature(signature, mapper, eraseTypeParameters) {
+            var freshTypeParameters;
+            if (signature.typeParameters && !eraseTypeParameters) {
+                freshTypeParameters = ts.map(signature.typeParameters, cloneTypeParameter);
+                mapper = combineTypeMappers(createTypeMapper(signature.typeParameters, freshTypeParameters), mapper);
+                for (var _i = 0, freshTypeParameters_1 = freshTypeParameters; _i < freshTypeParameters_1.length; _i++) {
+                    var tp = freshTypeParameters_1[_i];
+                    tp.mapper = mapper;
+                }
+            }
+            var result = createSignature(signature.declaration, freshTypeParameters, signature.thisParameter && instantiateSymbol(signature.thisParameter, mapper), instantiateList(signature.parameters, mapper, instantiateSymbol), undefined, undefined, signature.minArgumentCount, signature.flags & 3);
+            result.target = signature;
+            result.mapper = mapper;
+            return result;
+        }
+        function instantiateSymbol(symbol, mapper) {
+            var links = getSymbolLinks(symbol);
+            if (links.type && !couldContainTypeVariables(links.type)) {
+                return symbol;
+            }
+            if (ts.getCheckFlags(symbol) & 1) {
+                symbol = links.target;
+                mapper = combineTypeMappers(links.mapper, mapper);
+            }
+            var result = createSymbol(symbol.flags, symbol.escapedName, 1 | ts.getCheckFlags(symbol) & (8 | 4096 | 16384 | 32768));
+            result.declarations = symbol.declarations;
+            result.parent = symbol.parent;
+            result.target = symbol;
+            result.mapper = mapper;
+            if (symbol.valueDeclaration) {
+                result.valueDeclaration = symbol.valueDeclaration;
+            }
+            if (links.nameType) {
+                result.nameType = links.nameType;
+            }
+            return result;
+        }
+        function getObjectTypeInstantiation(type, mapper) {
+            var target = type.objectFlags & 64 ? type.target : type;
+            var node = type.objectFlags & 4 ? type.node : type.symbol.declarations[0];
+            var links = getNodeLinks(node);
+            var typeParameters = links.outerTypeParameters;
+            if (!typeParameters) {
+                var declaration_1 = node;
+                if (ts.isInJSFile(declaration_1)) {
+                    var paramTag = ts.findAncestor(declaration_1, ts.isJSDocParameterTag);
+                    if (paramTag) {
+                        var paramSymbol = ts.getParameterSymbolFromJSDoc(paramTag);
+                        if (paramSymbol) {
+                            declaration_1 = paramSymbol.valueDeclaration;
+                        }
+                    }
+                }
+                var outerTypeParameters = getOuterTypeParameters(declaration_1, true);
+                if (isJSConstructor(declaration_1)) {
+                    var templateTagParameters = getTypeParametersFromDeclaration(declaration_1);
+                    outerTypeParameters = ts.addRange(outerTypeParameters, templateTagParameters);
+                }
+                typeParameters = outerTypeParameters || ts.emptyArray;
+                typeParameters = (target.objectFlags & 4 || target.symbol.flags & 2048) && !target.aliasTypeArguments ?
+                    ts.filter(typeParameters, function (tp) { return isTypeParameterPossiblyReferenced(tp, declaration_1); }) :
+                    typeParameters;
+                links.outerTypeParameters = typeParameters;
+                if (typeParameters.length) {
+                    links.instantiations = ts.createMap();
+                    links.instantiations.set(getTypeListId(typeParameters), target);
+                }
+            }
+            if (typeParameters.length) {
+                var combinedMapper_1 = combineTypeMappers(type.mapper, mapper);
+                var typeArguments = ts.map(typeParameters, function (t) { return getMappedType(t, combinedMapper_1); });
+                var id = getTypeListId(typeArguments);
+                var result = links.instantiations.get(id);
+                if (!result) {
+                    var newMapper = createTypeMapper(typeParameters, typeArguments);
+                    result = target.objectFlags & 4 ? createDeferredTypeReference(type.target, type.node, newMapper) :
+                        target.objectFlags & 32 ? instantiateMappedType(target, newMapper) :
+                            instantiateAnonymousType(target, newMapper);
+                    links.instantiations.set(id, result);
+                }
+                return result;
+            }
+            return type;
+        }
+        function maybeTypeParameterReference(node) {
+            return !(node.kind === 153 ||
+                node.parent.kind === 169 && node.parent.typeArguments && node === node.parent.typeName ||
+                node.parent.kind === 188 && node.parent.typeArguments && node === node.parent.qualifier);
+        }
+        function isTypeParameterPossiblyReferenced(tp, node) {
+            if (tp.symbol && tp.symbol.declarations && tp.symbol.declarations.length === 1) {
+                var container = tp.symbol.declarations[0].parent;
+                for (var n = node; n !== container; n = n.parent) {
+                    if (!n || n.kind === 223 || n.kind === 180 && ts.forEachChild(n.extendsType, containsReference)) {
+                        return true;
+                    }
+                }
+                return !!ts.forEachChild(node, containsReference);
+            }
+            return true;
+            function containsReference(node) {
+                switch (node.kind) {
+                    case 183:
+                        return !!tp.isThisType;
+                    case 75:
+                        return !tp.isThisType && ts.isPartOfTypeNode(node) && maybeTypeParameterReference(node) &&
+                            getTypeFromTypeNodeWorker(node) === tp;
+                    case 172:
+                        return true;
+                }
+                return !!ts.forEachChild(node, containsReference);
+            }
+        }
+        function getHomomorphicTypeVariable(type) {
+            var constraintType = getConstraintTypeFromMappedType(type);
+            if (constraintType.flags & 4194304) {
+                var typeVariable = getActualTypeVariable(constraintType.type);
+                if (typeVariable.flags & 262144) {
+                    return typeVariable;
+                }
+            }
+            return undefined;
+        }
+        function instantiateMappedType(type, mapper) {
+            var typeVariable = getHomomorphicTypeVariable(type);
+            if (typeVariable) {
+                var mappedTypeVariable = instantiateType(typeVariable, mapper);
+                if (typeVariable !== mappedTypeVariable) {
+                    return mapType(getReducedType(mappedTypeVariable), function (t) {
+                        if (t.flags & (3 | 58982400 | 524288 | 2097152) && t !== wildcardType && t !== errorType) {
+                            var replacementMapper = prependTypeMapping(typeVariable, t, mapper);
+                            return isArrayType(t) ? instantiateMappedArrayType(t, type, replacementMapper) :
+                                isTupleType(t) ? instantiateMappedTupleType(t, type, replacementMapper) :
+                                    instantiateAnonymousType(type, replacementMapper);
+                        }
+                        return t;
+                    });
+                }
+            }
+            return instantiateAnonymousType(type, mapper);
+        }
+        function getModifiedReadonlyState(state, modifiers) {
+            return modifiers & 1 ? true : modifiers & 2 ? false : state;
+        }
+        function instantiateMappedArrayType(arrayType, mappedType, mapper) {
+            var elementType = instantiateMappedTypeTemplate(mappedType, numberType, true, mapper);
+            return elementType === errorType ? errorType :
+                createArrayType(elementType, getModifiedReadonlyState(isReadonlyArrayType(arrayType), getMappedTypeModifiers(mappedType)));
+        }
+        function instantiateMappedTupleType(tupleType, mappedType, mapper) {
+            var minLength = tupleType.target.minLength;
+            var elementTypes = ts.map(getTypeArguments(tupleType), function (_, i) {
+                return instantiateMappedTypeTemplate(mappedType, getLiteralType("" + i), i >= minLength, mapper);
+            });
+            var modifiers = getMappedTypeModifiers(mappedType);
+            var newMinLength = modifiers & 4 ? 0 :
+                modifiers & 8 ? getTypeReferenceArity(tupleType) - (tupleType.target.hasRestElement ? 1 : 0) :
+                    minLength;
+            var newReadonly = getModifiedReadonlyState(tupleType.target.readonly, modifiers);
+            return ts.contains(elementTypes, errorType) ? errorType :
+                createTupleType(elementTypes, newMinLength, tupleType.target.hasRestElement, newReadonly, tupleType.target.associatedNames);
+        }
+        function instantiateMappedTypeTemplate(type, key, isOptional, mapper) {
+            var templateMapper = appendTypeMapping(mapper, getTypeParameterFromMappedType(type), key);
+            var propType = instantiateType(getTemplateTypeFromMappedType(type.target || type), templateMapper);
+            var modifiers = getMappedTypeModifiers(type);
+            return strictNullChecks && modifiers & 4 && !maybeTypeOfKind(propType, 32768 | 16384) ? getOptionalType(propType) :
+                strictNullChecks && modifiers & 8 && isOptional ? getTypeWithFacts(propType, 524288) :
+                    propType;
+        }
+        function instantiateAnonymousType(type, mapper) {
+            var result = createObjectType(type.objectFlags | 64, type.symbol);
+            if (type.objectFlags & 32) {
+                result.declaration = type.declaration;
+                var origTypeParameter = getTypeParameterFromMappedType(type);
+                var freshTypeParameter = cloneTypeParameter(origTypeParameter);
+                result.typeParameter = freshTypeParameter;
+                mapper = combineTypeMappers(makeUnaryTypeMapper(origTypeParameter, freshTypeParameter), mapper);
+                freshTypeParameter.mapper = mapper;
+            }
+            result.target = type;
+            result.mapper = mapper;
+            result.aliasSymbol = type.aliasSymbol;
+            result.aliasTypeArguments = instantiateTypes(type.aliasTypeArguments, mapper);
+            return result;
+        }
+        function getConditionalTypeInstantiation(type, mapper) {
+            var root = type.root;
+            if (root.outerTypeParameters) {
+                var typeArguments = ts.map(root.outerTypeParameters, function (t) { return getMappedType(t, mapper); });
+                var id = getTypeListId(typeArguments);
+                var result = root.instantiations.get(id);
+                if (!result) {
+                    var newMapper = createTypeMapper(root.outerTypeParameters, typeArguments);
+                    result = instantiateConditionalType(root, newMapper);
+                    root.instantiations.set(id, result);
+                }
+                return result;
+            }
+            return type;
+        }
+        function instantiateConditionalType(root, mapper) {
+            if (root.isDistributive) {
+                var checkType_1 = root.checkType;
+                var instantiatedType = getMappedType(checkType_1, mapper);
+                if (checkType_1 !== instantiatedType && instantiatedType.flags & (1048576 | 131072)) {
+                    return mapType(instantiatedType, function (t) { return getConditionalType(root, prependTypeMapping(checkType_1, t, mapper)); });
+                }
+            }
+            return getConditionalType(root, mapper);
+        }
+        function instantiateType(type, mapper) {
+            if (!type || !mapper) {
+                return type;
+            }
+            if (instantiationDepth === 50 || instantiationCount >= 5000000) {
+                error(currentNode, ts.Diagnostics.Type_instantiation_is_excessively_deep_and_possibly_infinite);
+                return errorType;
+            }
+            totalInstantiationCount++;
+            instantiationCount++;
+            instantiationDepth++;
+            var result = instantiateTypeWorker(type, mapper);
+            instantiationDepth--;
+            return result;
+        }
+        function instantiateTypeWithoutDepthIncrease(type, mapper) {
+            instantiationDepth--;
+            var result = instantiateType(type, mapper);
+            instantiationDepth++;
+            return result;
+        }
+        function instantiateTypeWorker(type, mapper) {
+            var flags = type.flags;
+            if (flags & 262144) {
+                return getMappedType(type, mapper);
+            }
+            if (flags & 524288) {
+                var objectFlags = type.objectFlags;
+                if (objectFlags & 16) {
+                    return couldContainTypeVariables(type) ?
+                        getObjectTypeInstantiation(type, mapper) : type;
+                }
+                if (objectFlags & 32) {
+                    return getObjectTypeInstantiation(type, mapper);
+                }
+                if (objectFlags & 4) {
+                    if (type.node) {
+                        return getObjectTypeInstantiation(type, mapper);
+                    }
+                    var resolvedTypeArguments = type.resolvedTypeArguments;
+                    var newTypeArguments = instantiateTypes(resolvedTypeArguments, mapper);
+                    return newTypeArguments !== resolvedTypeArguments ? createTypeReference(type.target, newTypeArguments) : type;
+                }
+                return type;
+            }
+            if ((flags & 2097152) || (flags & 1048576 && !(flags & 131068))) {
+                if (!couldContainTypeVariables(type)) {
+                    return type;
+                }
+                var types = type.types;
+                var newTypes = instantiateTypes(types, mapper);
+                return newTypes === types
+                    ? type
+                    : (flags & 2097152)
+                        ? getIntersectionType(newTypes, type.aliasSymbol, instantiateTypes(type.aliasTypeArguments, mapper))
+                        : getUnionType(newTypes, 1, type.aliasSymbol, instantiateTypes(type.aliasTypeArguments, mapper));
+            }
+            if (flags & 4194304) {
+                return getIndexType(instantiateType(type.type, mapper));
+            }
+            if (flags & 8388608) {
+                return getIndexedAccessType(instantiateType(type.objectType, mapper), instantiateType(type.indexType, mapper));
+            }
+            if (flags & 16777216) {
+                return getConditionalTypeInstantiation(type, combineTypeMappers(type.mapper, mapper));
+            }
+            if (flags & 33554432) {
+                var maybeVariable = instantiateType(type.baseType, mapper);
+                if (maybeVariable.flags & 8650752) {
+                    return getSubstitutionType(maybeVariable, instantiateType(type.substitute, mapper));
+                }
+                else {
+                    var sub = instantiateType(type.substitute, mapper);
+                    if (sub.flags & 3 || isTypeAssignableTo(getRestrictiveInstantiation(maybeVariable), getRestrictiveInstantiation(sub))) {
+                        return maybeVariable;
+                    }
+                    return sub;
+                }
+            }
+            return type;
+        }
+        function getPermissiveInstantiation(type) {
+            return type.flags & (131068 | 3 | 131072) ? type :
+                type.permissiveInstantiation || (type.permissiveInstantiation = instantiateType(type, permissiveMapper));
+        }
+        function getRestrictiveInstantiation(type) {
+            if (type.flags & (131068 | 3 | 131072)) {
+                return type;
+            }
+            if (type.restrictiveInstantiation) {
+                return type.restrictiveInstantiation;
+            }
+            type.restrictiveInstantiation = instantiateType(type, restrictiveMapper);
+            type.restrictiveInstantiation.restrictiveInstantiation = type.restrictiveInstantiation;
+            return type.restrictiveInstantiation;
+        }
+        function instantiateIndexInfo(info, mapper) {
+            return info && createIndexInfo(instantiateType(info.type, mapper), info.isReadonly, info.declaration);
+        }
+        function isContextSensitive(node) {
+            ts.Debug.assert(node.kind !== 161 || ts.isObjectLiteralMethod(node));
+            switch (node.kind) {
+                case 201:
+                case 202:
+                case 161:
+                case 244:
+                    return isContextSensitiveFunctionLikeDeclaration(node);
+                case 193:
+                    return ts.some(node.properties, isContextSensitive);
+                case 192:
+                    return ts.some(node.elements, isContextSensitive);
+                case 210:
+                    return isContextSensitive(node.whenTrue) ||
+                        isContextSensitive(node.whenFalse);
+                case 209:
+                    return (node.operatorToken.kind === 56 || node.operatorToken.kind === 60) &&
+                        (isContextSensitive(node.left) || isContextSensitive(node.right));
+                case 281:
+                    return isContextSensitive(node.initializer);
+                case 200:
+                    return isContextSensitive(node.expression);
+                case 274:
+                    return ts.some(node.properties, isContextSensitive) || ts.isJsxOpeningElement(node.parent) && ts.some(node.parent.parent.children, isContextSensitive);
+                case 273: {
+                    var initializer = node.initializer;
+                    return !!initializer && isContextSensitive(initializer);
+                }
+                case 276: {
+                    var expression = node.expression;
+                    return !!expression && isContextSensitive(expression);
+                }
+            }
+            return false;
+        }
+        function isContextSensitiveFunctionLikeDeclaration(node) {
+            return (!ts.isFunctionDeclaration(node) || ts.isInJSFile(node) && !!getTypeForDeclarationFromJSDocComment(node)) &&
+                (hasContextSensitiveParameters(node) || hasContextSensitiveReturnExpression(node));
+        }
+        function hasContextSensitiveParameters(node) {
+            if (!node.typeParameters) {
+                if (ts.some(node.parameters, function (p) { return !ts.getEffectiveTypeAnnotationNode(p); })) {
+                    return true;
+                }
+                if (node.kind !== 202) {
+                    var parameter = ts.firstOrUndefined(node.parameters);
+                    if (!(parameter && ts.parameterIsThisKeyword(parameter))) {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
+        function hasContextSensitiveReturnExpression(node) {
+            return !node.typeParameters && !ts.getEffectiveReturnTypeNode(node) && !!node.body && node.body.kind !== 223 && isContextSensitive(node.body);
+        }
+        function isContextSensitiveFunctionOrObjectLiteralMethod(func) {
+            return (ts.isInJSFile(func) && ts.isFunctionDeclaration(func) || isFunctionExpressionOrArrowFunction(func) || ts.isObjectLiteralMethod(func)) &&
+                isContextSensitiveFunctionLikeDeclaration(func);
+        }
+        function getTypeWithoutSignatures(type) {
+            if (type.flags & 524288) {
+                var resolved = resolveStructuredTypeMembers(type);
+                if (resolved.constructSignatures.length || resolved.callSignatures.length) {
+                    var result = createObjectType(16, type.symbol);
+                    result.members = resolved.members;
+                    result.properties = resolved.properties;
+                    result.callSignatures = ts.emptyArray;
+                    result.constructSignatures = ts.emptyArray;
+                    return result;
+                }
+            }
+            else if (type.flags & 2097152) {
+                return getIntersectionType(ts.map(type.types, getTypeWithoutSignatures));
+            }
+            return type;
+        }
+        function isTypeIdenticalTo(source, target) {
+            return isTypeRelatedTo(source, target, identityRelation);
+        }
+        function compareTypesIdentical(source, target) {
+            return isTypeRelatedTo(source, target, identityRelation) ? -1 : 0;
+        }
+        function compareTypesAssignable(source, target) {
+            return isTypeRelatedTo(source, target, assignableRelation) ? -1 : 0;
+        }
+        function compareTypesSubtypeOf(source, target) {
+            return isTypeRelatedTo(source, target, subtypeRelation) ? -1 : 0;
+        }
+        function isTypeSubtypeOf(source, target) {
+            return isTypeRelatedTo(source, target, subtypeRelation);
+        }
+        function isTypeAssignableTo(source, target) {
+            return isTypeRelatedTo(source, target, assignableRelation);
+        }
+        function isTypeDerivedFrom(source, target) {
+            return source.flags & 1048576 ? ts.every(source.types, function (t) { return isTypeDerivedFrom(t, target); }) :
+                target.flags & 1048576 ? ts.some(target.types, function (t) { return isTypeDerivedFrom(source, t); }) :
+                    source.flags & 58982400 ? isTypeDerivedFrom(getBaseConstraintOfType(source) || unknownType, target) :
+                        target === globalObjectType ? !!(source.flags & (524288 | 67108864)) :
+                            target === globalFunctionType ? !!(source.flags & 524288) && isFunctionObjectType(source) :
+                                hasBaseType(source, getTargetType(target));
+        }
+        function isTypeComparableTo(source, target) {
+            return isTypeRelatedTo(source, target, comparableRelation);
+        }
+        function areTypesComparable(type1, type2) {
+            return isTypeComparableTo(type1, type2) || isTypeComparableTo(type2, type1);
+        }
+        function checkTypeAssignableTo(source, target, errorNode, headMessage, containingMessageChain, errorOutputObject) {
+            return checkTypeRelatedTo(source, target, assignableRelation, errorNode, headMessage, containingMessageChain, errorOutputObject);
+        }
+        function checkTypeAssignableToAndOptionallyElaborate(source, target, errorNode, expr, headMessage, containingMessageChain) {
+            return checkTypeRelatedToAndOptionallyElaborate(source, target, assignableRelation, errorNode, expr, headMessage, containingMessageChain, undefined);
+        }
+        function checkTypeRelatedToAndOptionallyElaborate(source, target, relation, errorNode, expr, headMessage, containingMessageChain, errorOutputContainer) {
+            if (isTypeRelatedTo(source, target, relation))
+                return true;
+            if (!errorNode || !elaborateError(expr, source, target, relation, headMessage, containingMessageChain, errorOutputContainer)) {
+                return checkTypeRelatedTo(source, target, relation, errorNode, headMessage, containingMessageChain, errorOutputContainer);
+            }
+            return false;
+        }
+        function isOrHasGenericConditional(type) {
+            return !!(type.flags & 16777216 || (type.flags & 2097152 && ts.some(type.types, isOrHasGenericConditional)));
+        }
+        function elaborateError(node, source, target, relation, headMessage, containingMessageChain, errorOutputContainer) {
+            if (!node || isOrHasGenericConditional(target))
+                return false;
+            if (!checkTypeRelatedTo(source, target, relation, undefined)
+                && elaborateDidYouMeanToCallOrConstruct(node, source, target, relation, headMessage, containingMessageChain, errorOutputContainer)) {
+                return true;
+            }
+            switch (node.kind) {
+                case 276:
+                case 200:
+                    return elaborateError(node.expression, source, target, relation, headMessage, containingMessageChain, errorOutputContainer);
+                case 209:
+                    switch (node.operatorToken.kind) {
+                        case 62:
+                        case 27:
+                            return elaborateError(node.right, source, target, relation, headMessage, containingMessageChain, errorOutputContainer);
+                    }
+                    break;
+                case 193:
+                    return elaborateObjectLiteral(node, source, target, relation, containingMessageChain, errorOutputContainer);
+                case 192:
+                    return elaborateArrayLiteral(node, source, target, relation, containingMessageChain, errorOutputContainer);
+                case 274:
+                    return elaborateJsxComponents(node, source, target, relation, containingMessageChain, errorOutputContainer);
+                case 202:
+                    return elaborateArrowFunction(node, source, target, relation, containingMessageChain, errorOutputContainer);
+            }
+            return false;
+        }
+        function elaborateDidYouMeanToCallOrConstruct(node, source, target, relation, headMessage, containingMessageChain, errorOutputContainer) {
+            var callSignatures = getSignaturesOfType(source, 0);
+            var constructSignatures = getSignaturesOfType(source, 1);
+            for (var _i = 0, _a = [constructSignatures, callSignatures]; _i < _a.length; _i++) {
+                var signatures = _a[_i];
+                if (ts.some(signatures, function (s) {
+                    var returnType = getReturnTypeOfSignature(s);
+                    return !(returnType.flags & (1 | 131072)) && checkTypeRelatedTo(returnType, target, relation, undefined);
+                })) {
+                    var resultObj = errorOutputContainer || {};
+                    checkTypeAssignableTo(source, target, node, headMessage, containingMessageChain, resultObj);
+                    var diagnostic = resultObj.errors[resultObj.errors.length - 1];
+                    ts.addRelatedInfo(diagnostic, ts.createDiagnosticForNode(node, signatures === constructSignatures ? ts.Diagnostics.Did_you_mean_to_use_new_with_this_expression : ts.Diagnostics.Did_you_mean_to_call_this_expression));
+                    return true;
+                }
+            }
+            return false;
+        }
+        function elaborateArrowFunction(node, source, target, relation, containingMessageChain, errorOutputContainer) {
+            if (ts.isBlock(node.body)) {
+                return false;
+            }
+            if (ts.some(node.parameters, ts.hasType)) {
+                return false;
+            }
+            var sourceSig = getSingleCallSignature(source);
+            if (!sourceSig) {
+                return false;
+            }
+            var targetSignatures = getSignaturesOfType(target, 0);
+            if (!ts.length(targetSignatures)) {
+                return false;
+            }
+            var returnExpression = node.body;
+            var sourceReturn = getReturnTypeOfSignature(sourceSig);
+            var targetReturn = getUnionType(ts.map(targetSignatures, getReturnTypeOfSignature));
+            if (!checkTypeRelatedTo(sourceReturn, targetReturn, relation, undefined)) {
+                var elaborated = returnExpression && elaborateError(returnExpression, sourceReturn, targetReturn, relation, undefined, containingMessageChain, errorOutputContainer);
+                if (elaborated) {
+                    return elaborated;
+                }
+                var resultObj = errorOutputContainer || {};
+                checkTypeRelatedTo(sourceReturn, targetReturn, relation, returnExpression, undefined, containingMessageChain, resultObj);
+                if (resultObj.errors) {
+                    if (target.symbol && ts.length(target.symbol.declarations)) {
+                        ts.addRelatedInfo(resultObj.errors[resultObj.errors.length - 1], ts.createDiagnosticForNode(target.symbol.declarations[0], ts.Diagnostics.The_expected_type_comes_from_the_return_type_of_this_signature));
+                    }
+                    if ((ts.getFunctionFlags(node) & 2) === 0
+                        && !getTypeOfPropertyOfType(sourceReturn, "then")
+                        && checkTypeRelatedTo(createPromiseType(sourceReturn), targetReturn, relation, undefined)) {
+                        ts.addRelatedInfo(resultObj.errors[resultObj.errors.length - 1], ts.createDiagnosticForNode(node, ts.Diagnostics.Did_you_mean_to_mark_this_function_as_async));
+                    }
+                    return true;
+                }
+            }
+            return false;
+        }
+        function getBestMatchIndexedAccessTypeOrUndefined(source, target, nameType) {
+            var idx = getIndexedAccessTypeOrUndefined(target, nameType);
+            if (idx) {
+                return idx;
+            }
+            if (target.flags & 1048576) {
+                var best = getBestMatchingType(source, target);
+                if (best) {
+                    return getIndexedAccessTypeOrUndefined(best, nameType);
+                }
+            }
+        }
+        function checkExpressionForMutableLocationWithContextualType(next, sourcePropType) {
+            next.contextualType = sourcePropType;
+            try {
+                return checkExpressionForMutableLocation(next, 1, sourcePropType);
+            }
+            finally {
+                next.contextualType = undefined;
+            }
+        }
+        function elaborateElementwise(iterator, source, target, relation, containingMessageChain, errorOutputContainer) {
+            var reportedError = false;
+            for (var status = iterator.next(); !status.done; status = iterator.next()) {
+                var _a = status.value, prop = _a.errorNode, next = _a.innerExpression, nameType = _a.nameType, errorMessage = _a.errorMessage;
+                var targetPropType = getBestMatchIndexedAccessTypeOrUndefined(source, target, nameType);
+                if (!targetPropType || targetPropType.flags & 8388608)
+                    continue;
+                var sourcePropType = getIndexedAccessTypeOrUndefined(source, nameType);
+                if (sourcePropType && !checkTypeRelatedTo(sourcePropType, targetPropType, relation, undefined)) {
+                    var elaborated = next && elaborateError(next, sourcePropType, targetPropType, relation, undefined, containingMessageChain, errorOutputContainer);
+                    if (elaborated) {
+                        reportedError = true;
+                    }
+                    else {
+                        var resultObj = errorOutputContainer || {};
+                        var specificSource = next ? checkExpressionForMutableLocationWithContextualType(next, sourcePropType) : sourcePropType;
+                        var result = checkTypeRelatedTo(specificSource, targetPropType, relation, prop, errorMessage, containingMessageChain, resultObj);
+                        if (result && specificSource !== sourcePropType) {
+                            checkTypeRelatedTo(sourcePropType, targetPropType, relation, prop, errorMessage, containingMessageChain, resultObj);
+                        }
+                        if (resultObj.errors) {
+                            var reportedDiag = resultObj.errors[resultObj.errors.length - 1];
+                            var propertyName = isTypeUsableAsPropertyName(nameType) ? getPropertyNameFromType(nameType) : undefined;
+                            var targetProp = propertyName !== undefined ? getPropertyOfType(target, propertyName) : undefined;
+                            var issuedElaboration = false;
+                            if (!targetProp) {
+                                var indexInfo = isTypeAssignableToKind(nameType, 296) && getIndexInfoOfType(target, 1) ||
+                                    getIndexInfoOfType(target, 0) ||
+                                    undefined;
+                                if (indexInfo && indexInfo.declaration && !ts.getSourceFileOfNode(indexInfo.declaration).hasNoDefaultLib) {
+                                    issuedElaboration = true;
+                                    ts.addRelatedInfo(reportedDiag, ts.createDiagnosticForNode(indexInfo.declaration, ts.Diagnostics.The_expected_type_comes_from_this_index_signature));
+                                }
+                            }
+                            if (!issuedElaboration && (targetProp && ts.length(targetProp.declarations) || target.symbol && ts.length(target.symbol.declarations))) {
+                                var targetNode = targetProp && ts.length(targetProp.declarations) ? targetProp.declarations[0] : target.symbol.declarations[0];
+                                if (!ts.getSourceFileOfNode(targetNode).hasNoDefaultLib) {
+                                    ts.addRelatedInfo(reportedDiag, ts.createDiagnosticForNode(targetNode, ts.Diagnostics.The_expected_type_comes_from_property_0_which_is_declared_here_on_type_1, propertyName && !(nameType.flags & 8192) ? ts.unescapeLeadingUnderscores(propertyName) : typeToString(nameType), typeToString(target)));
+                                }
+                            }
+                        }
+                        reportedError = true;
+                    }
+                }
+            }
+            return reportedError;
+        }
+        function generateJsxAttributes(node) {
+            var _i, _a, prop;
+            return __generator(this, function (_b) {
+                switch (_b.label) {
+                    case 0:
+                        if (!ts.length(node.properties))
+                            return [2];
+                        _i = 0, _a = node.properties;
+                        _b.label = 1;
+                    case 1:
+                        if (!(_i < _a.length)) return [3, 4];
+                        prop = _a[_i];
+                        if (ts.isJsxSpreadAttribute(prop))
+                            return [3, 3];
+                        return [4, { errorNode: prop.name, innerExpression: prop.initializer, nameType: getLiteralType(ts.idText(prop.name)) }];
+                    case 2:
+                        _b.sent();
+                        _b.label = 3;
+                    case 3:
+                        _i++;
+                        return [3, 1];
+                    case 4: return [2];
+                }
+            });
+        }
+        function generateJsxChildren(node, getInvalidTextDiagnostic) {
+            var memberOffset, i, child, nameType, elem;
+            return __generator(this, function (_a) {
+                switch (_a.label) {
+                    case 0:
+                        if (!ts.length(node.children))
+                            return [2];
+                        memberOffset = 0;
+                        i = 0;
+                        _a.label = 1;
+                    case 1:
+                        if (!(i < node.children.length)) return [3, 5];
+                        child = node.children[i];
+                        nameType = getLiteralType(i - memberOffset);
+                        elem = getElaborationElementForJsxChild(child, nameType, getInvalidTextDiagnostic);
+                        if (!elem) return [3, 3];
+                        return [4, elem];
+                    case 2:
+                        _a.sent();
+                        return [3, 4];
+                    case 3:
+                        memberOffset++;
+                        _a.label = 4;
+                    case 4:
+                        i++;
+                        return [3, 1];
+                    case 5: return [2];
+                }
+            });
+        }
+        function getElaborationElementForJsxChild(child, nameType, getInvalidTextDiagnostic) {
+            switch (child.kind) {
+                case 276:
+                    return { errorNode: child, innerExpression: child.expression, nameType: nameType };
+                case 11:
+                    if (child.containsOnlyTriviaWhiteSpaces) {
+                        break;
+                    }
+                    return { errorNode: child, innerExpression: undefined, nameType: nameType, errorMessage: getInvalidTextDiagnostic() };
+                case 266:
+                case 267:
+                case 270:
+                    return { errorNode: child, innerExpression: child, nameType: nameType };
+                default:
+                    return ts.Debug.assertNever(child, "Found invalid jsx child");
+            }
+        }
+        function getSemanticJsxChildren(children) {
+            return ts.filter(children, function (i) { return !ts.isJsxText(i) || !i.containsOnlyTriviaWhiteSpaces; });
+        }
+        function elaborateJsxComponents(node, source, target, relation, containingMessageChain, errorOutputContainer) {
+            var result = elaborateElementwise(generateJsxAttributes(node), source, target, relation, containingMessageChain, errorOutputContainer);
+            var invalidTextDiagnostic;
+            if (ts.isJsxOpeningElement(node.parent) && ts.isJsxElement(node.parent.parent)) {
+                var containingElement = node.parent.parent;
+                var childPropName = getJsxElementChildrenPropertyName(getJsxNamespaceAt(node));
+                var childrenPropName = childPropName === undefined ? "children" : ts.unescapeLeadingUnderscores(childPropName);
+                var childrenNameType = getLiteralType(childrenPropName);
+                var childrenTargetType = getIndexedAccessType(target, childrenNameType);
+                var validChildren = getSemanticJsxChildren(containingElement.children);
+                if (!ts.length(validChildren)) {
+                    return result;
+                }
+                var moreThanOneRealChildren = ts.length(validChildren) > 1;
+                var arrayLikeTargetParts = filterType(childrenTargetType, isArrayOrTupleLikeType);
+                var nonArrayLikeTargetParts = filterType(childrenTargetType, function (t) { return !isArrayOrTupleLikeType(t); });
+                if (moreThanOneRealChildren) {
+                    if (arrayLikeTargetParts !== neverType) {
+                        var realSource = createTupleType(checkJsxChildren(containingElement, 0));
+                        var children = generateJsxChildren(containingElement, getInvalidTextualChildDiagnostic);
+                        result = elaborateElementwise(children, realSource, arrayLikeTargetParts, relation, containingMessageChain, errorOutputContainer) || result;
+                    }
+                    else if (!isTypeRelatedTo(getIndexedAccessType(source, childrenNameType), childrenTargetType, relation)) {
+                        result = true;
+                        var diag = error(containingElement.openingElement.tagName, ts.Diagnostics.This_JSX_tag_s_0_prop_expects_a_single_child_of_type_1_but_multiple_children_were_provided, childrenPropName, typeToString(childrenTargetType));
+                        if (errorOutputContainer && errorOutputContainer.skipLogging) {
+                            (errorOutputContainer.errors || (errorOutputContainer.errors = [])).push(diag);
+                        }
+                    }
+                }
+                else {
+                    if (nonArrayLikeTargetParts !== neverType) {
+                        var child = validChildren[0];
+                        var elem_1 = getElaborationElementForJsxChild(child, childrenNameType, getInvalidTextualChildDiagnostic);
+                        if (elem_1) {
+                            result = elaborateElementwise((function () { return __generator(this, function (_a) {
+                                switch (_a.label) {
+                                    case 0: return [4, elem_1];
+                                    case 1:
+                                        _a.sent();
+                                        return [2];
+                                }
+                            }); })(), source, target, relation, containingMessageChain, errorOutputContainer) || result;
+                        }
+                    }
+                    else if (!isTypeRelatedTo(getIndexedAccessType(source, childrenNameType), childrenTargetType, relation)) {
+                        result = true;
+                        var diag = error(containingElement.openingElement.tagName, ts.Diagnostics.This_JSX_tag_s_0_prop_expects_type_1_which_requires_multiple_children_but_only_a_single_child_was_provided, childrenPropName, typeToString(childrenTargetType));
+                        if (errorOutputContainer && errorOutputContainer.skipLogging) {
+                            (errorOutputContainer.errors || (errorOutputContainer.errors = [])).push(diag);
+                        }
+                    }
+                }
+            }
+            return result;
+            function getInvalidTextualChildDiagnostic() {
+                if (!invalidTextDiagnostic) {
+                    var tagNameText = ts.getTextOfNode(node.parent.tagName);
+                    var childPropName = getJsxElementChildrenPropertyName(getJsxNamespaceAt(node));
+                    var childrenPropName = childPropName === undefined ? "children" : ts.unescapeLeadingUnderscores(childPropName);
+                    var childrenTargetType = getIndexedAccessType(target, getLiteralType(childrenPropName));
+                    var diagnostic = ts.Diagnostics._0_components_don_t_accept_text_as_child_elements_Text_in_JSX_has_the_type_string_but_the_expected_type_of_1_is_2;
+                    invalidTextDiagnostic = __assign(__assign({}, diagnostic), { key: "!!ALREADY FORMATTED!!", message: ts.formatMessage(undefined, diagnostic, tagNameText, childrenPropName, typeToString(childrenTargetType)) });
+                }
+                return invalidTextDiagnostic;
+            }
+        }
+        function generateLimitedTupleElements(node, target) {
+            var len, i, elem, nameType;
+            return __generator(this, function (_a) {
+                switch (_a.label) {
+                    case 0:
+                        len = ts.length(node.elements);
+                        if (!len)
+                            return [2];
+                        i = 0;
+                        _a.label = 1;
+                    case 1:
+                        if (!(i < len)) return [3, 4];
+                        if (isTupleLikeType(target) && !getPropertyOfType(target, ("" + i)))
+                            return [3, 3];
+                        elem = node.elements[i];
+                        if (ts.isOmittedExpression(elem))
+                            return [3, 3];
+                        nameType = getLiteralType(i);
+                        return [4, { errorNode: elem, innerExpression: elem, nameType: nameType }];
+                    case 2:
+                        _a.sent();
+                        _a.label = 3;
+                    case 3:
+                        i++;
+                        return [3, 1];
+                    case 4: return [2];
+                }
+            });
+        }
+        function elaborateArrayLiteral(node, source, target, relation, containingMessageChain, errorOutputContainer) {
+            if (target.flags & 131068)
+                return false;
+            if (isTupleLikeType(source)) {
+                return elaborateElementwise(generateLimitedTupleElements(node, target), source, target, relation, containingMessageChain, errorOutputContainer);
+            }
+            var oldContext = node.contextualType;
+            node.contextualType = target;
+            try {
+                var tupleizedType = checkArrayLiteral(node, 1, true);
+                node.contextualType = oldContext;
+                if (isTupleLikeType(tupleizedType)) {
+                    return elaborateElementwise(generateLimitedTupleElements(node, target), tupleizedType, target, relation, containingMessageChain, errorOutputContainer);
+                }
+                return false;
+            }
+            finally {
+                node.contextualType = oldContext;
+            }
+        }
+        function generateObjectLiteralElements(node) {
+            var _i, _a, prop, type, _b;
+            return __generator(this, function (_c) {
+                switch (_c.label) {
+                    case 0:
+                        if (!ts.length(node.properties))
+                            return [2];
+                        _i = 0, _a = node.properties;
+                        _c.label = 1;
+                    case 1:
+                        if (!(_i < _a.length)) return [3, 8];
+                        prop = _a[_i];
+                        if (ts.isSpreadAssignment(prop))
+                            return [3, 7];
+                        type = getLiteralTypeFromProperty(getSymbolOfNode(prop), 8576);
+                        if (!type || (type.flags & 131072)) {
+                            return [3, 7];
+                        }
+                        _b = prop.kind;
+                        switch (_b) {
+                            case 164: return [3, 2];
+                            case 163: return [3, 2];
+                            case 161: return [3, 2];
+                            case 282: return [3, 2];
+                            case 281: return [3, 4];
+                        }
+                        return [3, 6];
+                    case 2: return [4, { errorNode: prop.name, innerExpression: undefined, nameType: type }];
+                    case 3:
+                        _c.sent();
+                        return [3, 7];
+                    case 4: return [4, { errorNode: prop.name, innerExpression: prop.initializer, nameType: type, errorMessage: ts.isComputedNonLiteralName(prop.name) ? ts.Diagnostics.Type_of_computed_property_s_value_is_0_which_is_not_assignable_to_type_1 : undefined }];
+                    case 5:
+                        _c.sent();
+                        return [3, 7];
+                    case 6:
+                        ts.Debug.assertNever(prop);
+                        _c.label = 7;
+                    case 7:
+                        _i++;
+                        return [3, 1];
+                    case 8: return [2];
+                }
+            });
+        }
+        function elaborateObjectLiteral(node, source, target, relation, containingMessageChain, errorOutputContainer) {
+            if (target.flags & 131068)
+                return false;
+            return elaborateElementwise(generateObjectLiteralElements(node), source, target, relation, containingMessageChain, errorOutputContainer);
+        }
+        function checkTypeComparableTo(source, target, errorNode, headMessage, containingMessageChain) {
+            return checkTypeRelatedTo(source, target, comparableRelation, errorNode, headMessage, containingMessageChain);
+        }
+        function isSignatureAssignableTo(source, target, ignoreReturnTypes) {
+            return compareSignaturesRelated(source, target, ignoreReturnTypes ? 4 : 0, false, undefined, undefined, compareTypesAssignable, undefined) !== 0;
+        }
+        function isAnySignature(s) {
+            return !s.typeParameters && (!s.thisParameter || isTypeAny(getTypeOfParameter(s.thisParameter))) && s.parameters.length === 1 &&
+                signatureHasRestParameter(s) && (getTypeOfParameter(s.parameters[0]) === anyArrayType || isTypeAny(getTypeOfParameter(s.parameters[0]))) &&
+                isTypeAny(getReturnTypeOfSignature(s));
+        }
+        function compareSignaturesRelated(source, target, checkMode, reportErrors, errorReporter, incompatibleErrorReporter, compareTypes, reportUnreliableMarkers) {
+            if (source === target) {
+                return -1;
+            }
+            if (isAnySignature(target)) {
+                return -1;
+            }
+            var targetCount = getParameterCount(target);
+            var sourceHasMoreParameters = !hasEffectiveRestParameter(target) &&
+                (checkMode & 8 ? hasEffectiveRestParameter(source) || getParameterCount(source) > targetCount : getMinArgumentCount(source) > targetCount);
+            if (sourceHasMoreParameters) {
+                return 0;
+            }
+            if (source.typeParameters && source.typeParameters !== target.typeParameters) {
+                target = getCanonicalSignature(target);
+                source = instantiateSignatureInContextOf(source, target, undefined, compareTypes);
+            }
+            var sourceCount = getParameterCount(source);
+            var sourceRestType = getNonArrayRestType(source);
+            var targetRestType = getNonArrayRestType(target);
+            if (sourceRestType || targetRestType) {
+                void instantiateType(sourceRestType || targetRestType, reportUnreliableMarkers);
+            }
+            if (sourceRestType && targetRestType && sourceCount !== targetCount) {
+                return 0;
+            }
+            var kind = target.declaration ? target.declaration.kind : 0;
+            var strictVariance = !(checkMode & 3) && strictFunctionTypes && kind !== 161 &&
+                kind !== 160 && kind !== 162;
+            var result = -1;
+            var sourceThisType = getThisTypeOfSignature(source);
+            if (sourceThisType && sourceThisType !== voidType) {
+                var targetThisType = getThisTypeOfSignature(target);
+                if (targetThisType) {
+                    var related = !strictVariance && compareTypes(sourceThisType, targetThisType, false)
+                        || compareTypes(targetThisType, sourceThisType, reportErrors);
+                    if (!related) {
+                        if (reportErrors) {
+                            errorReporter(ts.Diagnostics.The_this_types_of_each_signature_are_incompatible);
+                        }
+                        return 0;
+                    }
+                    result &= related;
+                }
+            }
+            var paramCount = sourceRestType || targetRestType ? Math.min(sourceCount, targetCount) : Math.max(sourceCount, targetCount);
+            var restIndex = sourceRestType || targetRestType ? paramCount - 1 : -1;
+            for (var i = 0; i < paramCount; i++) {
+                var sourceType = i === restIndex ? getRestTypeAtPosition(source, i) : getTypeAtPosition(source, i);
+                var targetType = i === restIndex ? getRestTypeAtPosition(target, i) : getTypeAtPosition(target, i);
+                var sourceSig = checkMode & 3 ? undefined : getSingleCallSignature(getNonNullableType(sourceType));
+                var targetSig = checkMode & 3 ? undefined : getSingleCallSignature(getNonNullableType(targetType));
+                var callbacks = sourceSig && targetSig && !getTypePredicateOfSignature(sourceSig) && !getTypePredicateOfSignature(targetSig) &&
+                    (getFalsyFlags(sourceType) & 98304) === (getFalsyFlags(targetType) & 98304);
+                var related = callbacks ?
+                    compareSignaturesRelated(targetSig, sourceSig, (checkMode & 8) | (strictVariance ? 2 : 1), reportErrors, errorReporter, incompatibleErrorReporter, compareTypes, reportUnreliableMarkers) :
+                    !(checkMode & 3) && !strictVariance && compareTypes(sourceType, targetType, false) || compareTypes(targetType, sourceType, reportErrors);
+                if (related && checkMode & 8 && i >= getMinArgumentCount(source) && i < getMinArgumentCount(target) && compareTypes(sourceType, targetType, false)) {
+                    related = 0;
+                }
+                if (!related) {
+                    if (reportErrors) {
+                        errorReporter(ts.Diagnostics.Types_of_parameters_0_and_1_are_incompatible, ts.unescapeLeadingUnderscores(getParameterNameAtPosition(source, i)), ts.unescapeLeadingUnderscores(getParameterNameAtPosition(target, i)));
+                    }
+                    return 0;
+                }
+                result &= related;
+            }
+            if (!(checkMode & 4)) {
+                var targetReturnType = isResolvingReturnTypeOfSignature(target) ? anyType
+                    : target.declaration && isJSConstructor(target.declaration) ? getDeclaredTypeOfClassOrInterface(getMergedSymbol(target.declaration.symbol))
+                        : getReturnTypeOfSignature(target);
+                if (targetReturnType === voidType) {
+                    return result;
+                }
+                var sourceReturnType = isResolvingReturnTypeOfSignature(source) ? anyType
+                    : source.declaration && isJSConstructor(source.declaration) ? getDeclaredTypeOfClassOrInterface(getMergedSymbol(source.declaration.symbol))
+                        : getReturnTypeOfSignature(source);
+                var targetTypePredicate = getTypePredicateOfSignature(target);
+                if (targetTypePredicate) {
+                    var sourceTypePredicate = getTypePredicateOfSignature(source);
+                    if (sourceTypePredicate) {
+                        result &= compareTypePredicateRelatedTo(sourceTypePredicate, targetTypePredicate, reportErrors, errorReporter, compareTypes);
+                    }
+                    else if (ts.isIdentifierTypePredicate(targetTypePredicate)) {
+                        if (reportErrors) {
+                            errorReporter(ts.Diagnostics.Signature_0_must_be_a_type_predicate, signatureToString(source));
+                        }
+                        return 0;
+                    }
+                }
+                else {
+                    result &= checkMode & 1 && compareTypes(targetReturnType, sourceReturnType, false) ||
+                        compareTypes(sourceReturnType, targetReturnType, reportErrors);
+                    if (!result && reportErrors && incompatibleErrorReporter) {
+                        incompatibleErrorReporter(sourceReturnType, targetReturnType);
+                    }
+                }
+            }
+            return result;
+        }
+        function compareTypePredicateRelatedTo(source, target, reportErrors, errorReporter, compareTypes) {
+            if (source.kind !== target.kind) {
+                if (reportErrors) {
+                    errorReporter(ts.Diagnostics.A_this_based_type_guard_is_not_compatible_with_a_parameter_based_type_guard);
+                    errorReporter(ts.Diagnostics.Type_predicate_0_is_not_assignable_to_1, typePredicateToString(source), typePredicateToString(target));
+                }
+                return 0;
+            }
+            if (source.kind === 1 || source.kind === 3) {
+                if (source.parameterIndex !== target.parameterIndex) {
+                    if (reportErrors) {
+                        errorReporter(ts.Diagnostics.Parameter_0_is_not_in_the_same_position_as_parameter_1, source.parameterName, target.parameterName);
+                        errorReporter(ts.Diagnostics.Type_predicate_0_is_not_assignable_to_1, typePredicateToString(source), typePredicateToString(target));
+                    }
+                    return 0;
+                }
+            }
+            var related = source.type === target.type ? -1 :
+                source.type && target.type ? compareTypes(source.type, target.type, reportErrors) :
+                    0;
+            if (related === 0 && reportErrors) {
+                errorReporter(ts.Diagnostics.Type_predicate_0_is_not_assignable_to_1, typePredicateToString(source), typePredicateToString(target));
+            }
+            return related;
+        }
+        function isImplementationCompatibleWithOverload(implementation, overload) {
+            var erasedSource = getErasedSignature(implementation);
+            var erasedTarget = getErasedSignature(overload);
+            var sourceReturnType = getReturnTypeOfSignature(erasedSource);
+            var targetReturnType = getReturnTypeOfSignature(erasedTarget);
+            if (targetReturnType === voidType
+                || isTypeRelatedTo(targetReturnType, sourceReturnType, assignableRelation)
+                || isTypeRelatedTo(sourceReturnType, targetReturnType, assignableRelation)) {
+                return isSignatureAssignableTo(erasedSource, erasedTarget, true);
+            }
+            return false;
+        }
+        function isEmptyResolvedType(t) {
+            return t !== anyFunctionType &&
+                t.properties.length === 0 &&
+                t.callSignatures.length === 0 &&
+                t.constructSignatures.length === 0 &&
+                !t.stringIndexInfo &&
+                !t.numberIndexInfo;
+        }
+        function isEmptyObjectType(type) {
+            return type.flags & 524288 ? !isGenericMappedType(type) && isEmptyResolvedType(resolveStructuredTypeMembers(type)) :
+                type.flags & 67108864 ? true :
+                    type.flags & 1048576 ? ts.some(type.types, isEmptyObjectType) :
+                        type.flags & 2097152 ? ts.every(type.types, isEmptyObjectType) :
+                            false;
+        }
+        function isEmptyAnonymousObjectType(type) {
+            return !!(ts.getObjectFlags(type) & 16) && isEmptyObjectType(type);
+        }
+        function isStringIndexSignatureOnlyType(type) {
+            return type.flags & 524288 && !isGenericMappedType(type) && getPropertiesOfType(type).length === 0 && getIndexInfoOfType(type, 0) && !getIndexInfoOfType(type, 1) ||
+                type.flags & 3145728 && ts.every(type.types, isStringIndexSignatureOnlyType) ||
+                false;
+        }
+        function isEnumTypeRelatedTo(sourceSymbol, targetSymbol, errorReporter) {
+            if (sourceSymbol === targetSymbol) {
+                return true;
+            }
+            var id = getSymbolId(sourceSymbol) + "," + getSymbolId(targetSymbol);
+            var entry = enumRelation.get(id);
+            if (entry !== undefined && !(!(entry & 4) && entry & 2 && errorReporter)) {
+                return !!(entry & 1);
+            }
+            if (sourceSymbol.escapedName !== targetSymbol.escapedName || !(sourceSymbol.flags & 256) || !(targetSymbol.flags & 256)) {
+                enumRelation.set(id, 2 | 4);
+                return false;
+            }
+            var targetEnumType = getTypeOfSymbol(targetSymbol);
+            for (var _i = 0, _a = getPropertiesOfType(getTypeOfSymbol(sourceSymbol)); _i < _a.length; _i++) {
+                var property = _a[_i];
+                if (property.flags & 8) {
+                    var targetProperty = getPropertyOfType(targetEnumType, property.escapedName);
+                    if (!targetProperty || !(targetProperty.flags & 8)) {
+                        if (errorReporter) {
+                            errorReporter(ts.Diagnostics.Property_0_is_missing_in_type_1, ts.symbolName(property), typeToString(getDeclaredTypeOfSymbol(targetSymbol), undefined, 64));
+                            enumRelation.set(id, 2 | 4);
+                        }
+                        else {
+                            enumRelation.set(id, 2);
+                        }
+                        return false;
+                    }
+                }
+            }
+            enumRelation.set(id, 1);
+            return true;
+        }
+        function isSimpleTypeRelatedTo(source, target, relation, errorReporter) {
+            var s = source.flags;
+            var t = target.flags;
+            if (t & 3 || s & 131072 || source === wildcardType)
+                return true;
+            if (t & 131072)
+                return false;
+            if (s & 132 && t & 4)
+                return true;
+            if (s & 128 && s & 1024 &&
+                t & 128 && !(t & 1024) &&
+                source.value === target.value)
+                return true;
+            if (s & 296 && t & 8)
+                return true;
+            if (s & 256 && s & 1024 &&
+                t & 256 && !(t & 1024) &&
+                source.value === target.value)
+                return true;
+            if (s & 2112 && t & 64)
+                return true;
+            if (s & 528 && t & 16)
+                return true;
+            if (s & 12288 && t & 4096)
+                return true;
+            if (s & 32 && t & 32 && isEnumTypeRelatedTo(source.symbol, target.symbol, errorReporter))
+                return true;
+            if (s & 1024 && t & 1024) {
+                if (s & 1048576 && t & 1048576 && isEnumTypeRelatedTo(source.symbol, target.symbol, errorReporter))
+                    return true;
+                if (s & 2944 && t & 2944 &&
+                    source.value === target.value &&
+                    isEnumTypeRelatedTo(getParentOfSymbol(source.symbol), getParentOfSymbol(target.symbol), errorReporter))
+                    return true;
+            }
+            if (s & 32768 && (!strictNullChecks || t & (32768 | 16384)))
+                return true;
+            if (s & 65536 && (!strictNullChecks || t & 65536))
+                return true;
+            if (s & 524288 && t & 67108864)
+                return true;
+            if (relation === assignableRelation || relation === comparableRelation) {
+                if (s & 1)
+                    return true;
+                if (s & (8 | 256) && !(s & 1024) && (t & 32 || t & 256 && t & 1024))
+                    return true;
+            }
+            return false;
+        }
+        function isTypeRelatedTo(source, target, relation) {
+            if (isFreshLiteralType(source)) {
+                source = source.regularType;
+            }
+            if (isFreshLiteralType(target)) {
+                target = target.regularType;
+            }
+            if (source === target) {
+                return true;
+            }
+            if (relation !== identityRelation) {
+                if (relation === comparableRelation && !(target.flags & 131072) && isSimpleTypeRelatedTo(target, source, relation) || isSimpleTypeRelatedTo(source, target, relation)) {
+                    return true;
+                }
+            }
+            else {
+                if (!(source.flags & 3145728) && !(target.flags & 3145728) &&
+                    source.flags !== target.flags && !(source.flags & 66584576))
+                    return false;
+            }
+            if (source.flags & 524288 && target.flags & 524288) {
+                var related = relation.get(getRelationKey(source, target, 0, relation));
+                if (related !== undefined) {
+                    return !!(related & 1);
+                }
+            }
+            if (source.flags & 66846720 || target.flags & 66846720) {
+                return checkTypeRelatedTo(source, target, relation, undefined);
+            }
+            return false;
+        }
+        function isIgnoredJsxProperty(source, sourceProp) {
+            return ts.getObjectFlags(source) & 4096 && !isUnhyphenatedJsxName(sourceProp.escapedName);
+        }
+        function getNormalizedType(type, writing) {
+            while (true) {
+                var t = isFreshLiteralType(type) ? type.regularType :
+                    ts.getObjectFlags(type) & 4 && type.node ? createTypeReference(type.target, getTypeArguments(type)) :
+                        type.flags & 3145728 ? getReducedType(type) :
+                            type.flags & 33554432 ? writing ? type.baseType : type.substitute :
+                                type.flags & 25165824 ? getSimplifiedType(type, writing) :
+                                    type;
+                if (t === type)
+                    break;
+                type = t;
+            }
+            return type;
+        }
+        function checkTypeRelatedTo(source, target, relation, errorNode, headMessage, containingMessageChain, errorOutputContainer) {
+            var errorInfo;
+            var relatedInfo;
+            var maybeKeys;
+            var sourceStack;
+            var targetStack;
+            var maybeCount = 0;
+            var depth = 0;
+            var expandingFlags = 0;
+            var overflow = false;
+            var overrideNextErrorInfo = 0;
+            var lastSkippedInfo;
+            var incompatibleStack = [];
+            var inPropertyCheck = false;
+            ts.Debug.assert(relation !== identityRelation || !errorNode, "no error reporting in identity checking");
+            var result = isRelatedTo(source, target, !!errorNode, headMessage);
+            if (incompatibleStack.length) {
+                reportIncompatibleStack();
+            }
+            if (overflow) {
+                var diag = error(errorNode || currentNode, ts.Diagnostics.Excessive_stack_depth_comparing_types_0_and_1, typeToString(source), typeToString(target));
+                if (errorOutputContainer) {
+                    (errorOutputContainer.errors || (errorOutputContainer.errors = [])).push(diag);
+                }
+            }
+            else if (errorInfo) {
+                if (containingMessageChain) {
+                    var chain = containingMessageChain();
+                    if (chain) {
+                        ts.concatenateDiagnosticMessageChains(chain, errorInfo);
+                        errorInfo = chain;
+                    }
+                }
+                var relatedInformation = void 0;
+                if (headMessage && errorNode && !result && source.symbol) {
+                    var links = getSymbolLinks(source.symbol);
+                    if (links.originatingImport && !ts.isImportCall(links.originatingImport)) {
+                        var helpfulRetry = checkTypeRelatedTo(getTypeOfSymbol(links.target), target, relation, undefined);
+                        if (helpfulRetry) {
+                            var diag_1 = ts.createDiagnosticForNode(links.originatingImport, ts.Diagnostics.Type_originates_at_this_import_A_namespace_style_import_cannot_be_called_or_constructed_and_will_cause_a_failure_at_runtime_Consider_using_a_default_import_or_import_require_here_instead);
+                            relatedInformation = ts.append(relatedInformation, diag_1);
+                        }
+                    }
+                }
+                var diag = ts.createDiagnosticForNodeFromMessageChain(errorNode, errorInfo, relatedInformation);
+                if (relatedInfo) {
+                    ts.addRelatedInfo.apply(void 0, __spreadArrays([diag], relatedInfo));
+                }
+                if (errorOutputContainer) {
+                    (errorOutputContainer.errors || (errorOutputContainer.errors = [])).push(diag);
+                }
+                if (!errorOutputContainer || !errorOutputContainer.skipLogging) {
+                    diagnostics.add(diag);
+                }
+            }
+            if (errorNode && errorOutputContainer && errorOutputContainer.skipLogging && result === 0) {
+                ts.Debug.assert(!!errorOutputContainer.errors, "missed opportunity to interact with error.");
+            }
+            return result !== 0;
+            function resetErrorInfo(saved) {
+                errorInfo = saved.errorInfo;
+                lastSkippedInfo = saved.lastSkippedInfo;
+                incompatibleStack = saved.incompatibleStack;
+                overrideNextErrorInfo = saved.overrideNextErrorInfo;
+                relatedInfo = saved.relatedInfo;
+            }
+            function captureErrorCalculationState() {
+                return {
+                    errorInfo: errorInfo,
+                    lastSkippedInfo: lastSkippedInfo,
+                    incompatibleStack: incompatibleStack.slice(),
+                    overrideNextErrorInfo: overrideNextErrorInfo,
+                    relatedInfo: !relatedInfo ? undefined : relatedInfo.slice()
+                };
+            }
+            function reportIncompatibleError(message, arg0, arg1, arg2, arg3) {
+                overrideNextErrorInfo++;
+                lastSkippedInfo = undefined;
+                incompatibleStack.push([message, arg0, arg1, arg2, arg3]);
+            }
+            function reportIncompatibleStack() {
+                var stack = incompatibleStack;
+                incompatibleStack = [];
+                var info = lastSkippedInfo;
+                lastSkippedInfo = undefined;
+                if (stack.length === 1) {
+                    reportError.apply(void 0, stack[0]);
+                    if (info) {
+                        reportRelationError.apply(void 0, __spreadArrays([undefined], info));
+                    }
+                    return;
+                }
+                var path = "";
+                var secondaryRootErrors = [];
+                while (stack.length) {
+                    var _a = stack.pop(), msg = _a[0], args = _a.slice(1);
+                    switch (msg.code) {
+                        case ts.Diagnostics.Types_of_property_0_are_incompatible.code: {
+                            if (path.indexOf("new ") === 0) {
+                                path = "(" + path + ")";
+                            }
+                            var str = "" + args[0];
+                            if (path.length === 0) {
+                                path = "" + str;
+                            }
+                            else if (ts.isIdentifierText(str, compilerOptions.target)) {
+                                path = path + "." + str;
+                            }
+                            else if (str[0] === "[" && str[str.length - 1] === "]") {
+                                path = "" + path + str;
+                            }
+                            else {
+                                path = path + "[" + str + "]";
+                            }
+                            break;
+                        }
+                        case ts.Diagnostics.Call_signature_return_types_0_and_1_are_incompatible.code:
+                        case ts.Diagnostics.Construct_signature_return_types_0_and_1_are_incompatible.code:
+                        case ts.Diagnostics.Call_signatures_with_no_arguments_have_incompatible_return_types_0_and_1.code:
+                        case ts.Diagnostics.Construct_signatures_with_no_arguments_have_incompatible_return_types_0_and_1.code: {
+                            if (path.length === 0) {
+                                var mappedMsg = msg;
+                                if (msg.code === ts.Diagnostics.Call_signatures_with_no_arguments_have_incompatible_return_types_0_and_1.code) {
+                                    mappedMsg = ts.Diagnostics.Call_signature_return_types_0_and_1_are_incompatible;
+                                }
+                                else if (msg.code === ts.Diagnostics.Construct_signatures_with_no_arguments_have_incompatible_return_types_0_and_1.code) {
+                                    mappedMsg = ts.Diagnostics.Construct_signature_return_types_0_and_1_are_incompatible;
+                                }
+                                secondaryRootErrors.unshift([mappedMsg, args[0], args[1]]);
+                            }
+                            else {
+                                var prefix = (msg.code === ts.Diagnostics.Construct_signature_return_types_0_and_1_are_incompatible.code ||
+                                    msg.code === ts.Diagnostics.Construct_signatures_with_no_arguments_have_incompatible_return_types_0_and_1.code)
+                                    ? "new "
+                                    : "";
+                                var params = (msg.code === ts.Diagnostics.Call_signatures_with_no_arguments_have_incompatible_return_types_0_and_1.code ||
+                                    msg.code === ts.Diagnostics.Construct_signatures_with_no_arguments_have_incompatible_return_types_0_and_1.code)
+                                    ? ""
+                                    : "...";
+                                path = "" + prefix + path + "(" + params + ")";
+                            }
+                            break;
+                        }
+                        default:
+                            return ts.Debug.fail("Unhandled Diagnostic: " + msg.code);
+                    }
+                }
+                if (path) {
+                    reportError(path[path.length - 1] === ")"
+                        ? ts.Diagnostics.The_types_returned_by_0_are_incompatible_between_these_types
+                        : ts.Diagnostics.The_types_of_0_are_incompatible_between_these_types, path);
+                }
+                else {
+                    secondaryRootErrors.shift();
+                }
+                for (var _i = 0, secondaryRootErrors_1 = secondaryRootErrors; _i < secondaryRootErrors_1.length; _i++) {
+                    var _b = secondaryRootErrors_1[_i], msg = _b[0], args = _b.slice(1);
+                    var originalValue = msg.elidedInCompatabilityPyramid;
+                    msg.elidedInCompatabilityPyramid = false;
+                    reportError.apply(void 0, __spreadArrays([msg], args));
+                    msg.elidedInCompatabilityPyramid = originalValue;
+                }
+                if (info) {
+                    reportRelationError.apply(void 0, __spreadArrays([undefined], info));
+                }
+            }
+            function reportError(message, arg0, arg1, arg2, arg3) {
+                ts.Debug.assert(!!errorNode);
+                if (incompatibleStack.length)
+                    reportIncompatibleStack();
+                if (message.elidedInCompatabilityPyramid)
+                    return;
+                errorInfo = ts.chainDiagnosticMessages(errorInfo, message, arg0, arg1, arg2, arg3);
+            }
+            function associateRelatedInfo(info) {
+                ts.Debug.assert(!!errorInfo);
+                if (!relatedInfo) {
+                    relatedInfo = [info];
+                }
+                else {
+                    relatedInfo.push(info);
+                }
+            }
+            function reportRelationError(message, source, target) {
+                if (incompatibleStack.length)
+                    reportIncompatibleStack();
+                var _a = getTypeNamesForErrorDisplay(source, target), sourceType = _a[0], targetType = _a[1];
+                if (target.flags & 262144) {
+                    var constraint = getBaseConstraintOfType(target);
+                    var constraintElab = constraint && isTypeAssignableTo(source, constraint);
+                    if (constraintElab) {
+                        reportError(ts.Diagnostics._0_is_assignable_to_the_constraint_of_type_1_but_1_could_be_instantiated_with_a_different_subtype_of_constraint_2, sourceType, targetType, typeToString(constraint));
+                    }
+                    else {
+                        reportError(ts.Diagnostics._0_could_be_instantiated_with_an_arbitrary_type_which_could_be_unrelated_to_1, targetType, sourceType);
+                    }
+                }
+                if (!message) {
+                    if (relation === comparableRelation) {
+                        message = ts.Diagnostics.Type_0_is_not_comparable_to_type_1;
+                    }
+                    else if (sourceType === targetType) {
+                        message = ts.Diagnostics.Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated;
+                    }
+                    else {
+                        message = ts.Diagnostics.Type_0_is_not_assignable_to_type_1;
+                    }
+                }
+                reportError(message, sourceType, targetType);
+            }
+            function tryElaborateErrorsForPrimitivesAndObjects(source, target) {
+                var sourceType = symbolValueDeclarationIsContextSensitive(source.symbol) ? typeToString(source, source.symbol.valueDeclaration) : typeToString(source);
+                var targetType = symbolValueDeclarationIsContextSensitive(target.symbol) ? typeToString(target, target.symbol.valueDeclaration) : typeToString(target);
+                if ((globalStringType === source && stringType === target) ||
+                    (globalNumberType === source && numberType === target) ||
+                    (globalBooleanType === source && booleanType === target) ||
+                    (getGlobalESSymbolType(false) === source && esSymbolType === target)) {
+                    reportError(ts.Diagnostics._0_is_a_primitive_but_1_is_a_wrapper_object_Prefer_using_0_when_possible, targetType, sourceType);
+                }
+            }
+            function tryElaborateArrayLikeErrors(source, target, reportErrors) {
+                if (isTupleType(source)) {
+                    if (source.target.readonly && isMutableArrayOrTuple(target)) {
+                        if (reportErrors) {
+                            reportError(ts.Diagnostics.The_type_0_is_readonly_and_cannot_be_assigned_to_the_mutable_type_1, typeToString(source), typeToString(target));
+                        }
+                        return false;
+                    }
+                    return isTupleType(target) || isArrayType(target);
+                }
+                if (isReadonlyArrayType(source) && isMutableArrayOrTuple(target)) {
+                    if (reportErrors) {
+                        reportError(ts.Diagnostics.The_type_0_is_readonly_and_cannot_be_assigned_to_the_mutable_type_1, typeToString(source), typeToString(target));
+                    }
+                    return false;
+                }
+                if (isTupleType(target)) {
+                    return isArrayType(source);
+                }
+                return true;
+            }
+            function isRelatedTo(originalSource, originalTarget, reportErrors, headMessage, intersectionState) {
+                if (reportErrors === void 0) { reportErrors = false; }
+                if (intersectionState === void 0) { intersectionState = 0; }
+                if (originalSource.flags & 524288 && originalTarget.flags & 131068) {
+                    if (isSimpleTypeRelatedTo(originalSource, originalTarget, relation, reportErrors ? reportError : undefined)) {
+                        return -1;
+                    }
+                    reportErrorResults(originalSource, originalTarget, 0, !!(ts.getObjectFlags(originalSource) & 4096));
+                    return 0;
+                }
+                var source = getNormalizedType(originalSource, false);
+                var target = getNormalizedType(originalTarget, true);
+                if (source === target)
+                    return -1;
+                if (relation === identityRelation) {
+                    return isIdenticalTo(source, target);
+                }
+                if (source.flags & 262144 && getConstraintOfType(source) === target) {
+                    return -1;
+                }
+                if (target.flags & 1048576 && source.flags & 524288 &&
+                    target.types.length <= 3 && maybeTypeOfKind(target, 98304)) {
+                    var nullStrippedTarget = extractTypesOfKind(target, ~98304);
+                    if (!(nullStrippedTarget.flags & (1048576 | 131072))) {
+                        if (source === nullStrippedTarget)
+                            return -1;
+                        target = nullStrippedTarget;
+                    }
+                }
+                if (relation === comparableRelation && !(target.flags & 131072) && isSimpleTypeRelatedTo(target, source, relation) ||
+                    isSimpleTypeRelatedTo(source, target, relation, reportErrors ? reportError : undefined))
+                    return -1;
+                var isComparingJsxAttributes = !!(ts.getObjectFlags(source) & 4096);
+                var isPerformingExcessPropertyChecks = !(intersectionState & 2) && (isObjectLiteralType(source) && ts.getObjectFlags(source) & 32768);
+                if (isPerformingExcessPropertyChecks) {
+                    if (hasExcessProperties(source, target, reportErrors)) {
+                        if (reportErrors) {
+                            reportRelationError(headMessage, source, target);
+                        }
+                        return 0;
+                    }
+                }
+                var isPerformingCommonPropertyChecks = relation !== comparableRelation && !(intersectionState & 2) &&
+                    source.flags & (131068 | 524288 | 2097152) && source !== globalObjectType &&
+                    target.flags & (524288 | 2097152) && isWeakType(target) &&
+                    (getPropertiesOfType(source).length > 0 || typeHasCallOrConstructSignatures(source));
+                if (isPerformingCommonPropertyChecks && !hasCommonProperties(source, target, isComparingJsxAttributes)) {
+                    if (reportErrors) {
+                        var calls = getSignaturesOfType(source, 0);
+                        var constructs = getSignaturesOfType(source, 1);
+                        if (calls.length > 0 && isRelatedTo(getReturnTypeOfSignature(calls[0]), target, false) ||
+                            constructs.length > 0 && isRelatedTo(getReturnTypeOfSignature(constructs[0]), target, false)) {
+                            reportError(ts.Diagnostics.Value_of_type_0_has_no_properties_in_common_with_type_1_Did_you_mean_to_call_it, typeToString(source), typeToString(target));
+                        }
+                        else {
+                            reportError(ts.Diagnostics.Type_0_has_no_properties_in_common_with_type_1, typeToString(source), typeToString(target));
+                        }
+                    }
+                    return 0;
+                }
+                var result = 0;
+                var saveErrorInfo = captureErrorCalculationState();
+                if (source.flags & 1048576) {
+                    result = relation === comparableRelation ?
+                        someTypeRelatedToType(source, target, reportErrors && !(source.flags & 131068), intersectionState) :
+                        eachTypeRelatedToType(source, target, reportErrors && !(source.flags & 131068), intersectionState);
+                }
+                else {
+                    if (target.flags & 1048576) {
+                        result = typeRelatedToSomeType(getRegularTypeOfObjectLiteral(source), target, reportErrors && !(source.flags & 131068) && !(target.flags & 131068));
+                    }
+                    else if (target.flags & 2097152) {
+                        result = typeRelatedToEachType(getRegularTypeOfObjectLiteral(source), target, reportErrors, 2);
+                    }
+                    else if (source.flags & 2097152) {
+                        result = someTypeRelatedToType(source, target, false, 1);
+                    }
+                    if (!result && (source.flags & 66846720 || target.flags & 66846720)) {
+                        if (result = recursiveTypeRelatedTo(source, target, reportErrors, intersectionState)) {
+                            resetErrorInfo(saveErrorInfo);
+                        }
+                    }
+                }
+                if (!result && source.flags & (2097152 | 262144)) {
+                    var constraint = getEffectiveConstraintOfIntersection(source.flags & 2097152 ? source.types : [source], !!(target.flags & 1048576));
+                    if (constraint && (source.flags & 2097152 || target.flags & 1048576)) {
+                        if (everyType(constraint, function (c) { return c !== source; })) {
+                            if (result = isRelatedTo(constraint, target, false, undefined, intersectionState)) {
+                                resetErrorInfo(saveErrorInfo);
+                            }
+                        }
+                    }
+                }
+                if (result && !inPropertyCheck && (target.flags & 2097152 && (isPerformingExcessPropertyChecks || isPerformingCommonPropertyChecks) ||
+                    isNonGenericObjectType(target) && !isArrayType(target) && !isTupleType(target) && source.flags & 2097152 && getApparentType(source).flags & 3670016 && !ts.some(source.types, function (t) { return !!(ts.getObjectFlags(t) & 2097152); }))) {
+                    inPropertyCheck = true;
+                    result &= recursiveTypeRelatedTo(source, target, reportErrors, 4);
+                    inPropertyCheck = false;
+                }
+                reportErrorResults(source, target, result, isComparingJsxAttributes);
+                return result;
+                function reportErrorResults(source, target, result, isComparingJsxAttributes) {
+                    if (!result && reportErrors) {
+                        source = originalSource.aliasSymbol ? originalSource : source;
+                        target = originalTarget.aliasSymbol ? originalTarget : target;
+                        var maybeSuppress = overrideNextErrorInfo > 0;
+                        if (maybeSuppress) {
+                            overrideNextErrorInfo--;
+                        }
+                        if (source.flags & 524288 && target.flags & 524288) {
+                            var currentError = errorInfo;
+                            tryElaborateArrayLikeErrors(source, target, reportErrors);
+                            if (errorInfo !== currentError) {
+                                maybeSuppress = !!errorInfo;
+                            }
+                        }
+                        if (source.flags & 524288 && target.flags & 131068) {
+                            tryElaborateErrorsForPrimitivesAndObjects(source, target);
+                        }
+                        else if (source.symbol && source.flags & 524288 && globalObjectType === source) {
+                            reportError(ts.Diagnostics.The_Object_type_is_assignable_to_very_few_other_types_Did_you_mean_to_use_the_any_type_instead);
+                        }
+                        else if (isComparingJsxAttributes && target.flags & 2097152) {
+                            var targetTypes = target.types;
+                            var intrinsicAttributes = getJsxType(JsxNames.IntrinsicAttributes, errorNode);
+                            var intrinsicClassAttributes = getJsxType(JsxNames.IntrinsicClassAttributes, errorNode);
+                            if (intrinsicAttributes !== errorType && intrinsicClassAttributes !== errorType &&
+                                (ts.contains(targetTypes, intrinsicAttributes) || ts.contains(targetTypes, intrinsicClassAttributes))) {
+                                return result;
+                            }
+                        }
+                        else {
+                            errorInfo = elaborateNeverIntersection(errorInfo, originalTarget);
+                        }
+                        if (!headMessage && maybeSuppress) {
+                            lastSkippedInfo = [source, target];
+                            return result;
+                        }
+                        reportRelationError(headMessage, source, target);
+                    }
+                }
+            }
+            function isIdenticalTo(source, target) {
+                var flags = source.flags & target.flags;
+                if (!(flags & 66584576)) {
+                    return 0;
+                }
+                if (flags & 3145728) {
+                    var result_5 = eachTypeRelatedToSomeType(source, target);
+                    if (result_5) {
+                        result_5 &= eachTypeRelatedToSomeType(target, source);
+                    }
+                    return result_5;
+                }
+                return recursiveTypeRelatedTo(source, target, false, 0);
+            }
+            function getTypeOfPropertyInTypes(types, name) {
+                var appendPropType = function (propTypes, type) {
+                    type = getApparentType(type);
+                    var prop = type.flags & 3145728 ? getPropertyOfUnionOrIntersectionType(type, name) : getPropertyOfObjectType(type, name);
+                    var propType = prop && getTypeOfSymbol(prop) || isNumericLiteralName(name) && getIndexTypeOfType(type, 1) || getIndexTypeOfType(type, 0) || undefinedType;
+                    return ts.append(propTypes, propType);
+                };
+                return getUnionType(ts.reduceLeft(types, appendPropType, undefined) || ts.emptyArray);
+            }
+            function hasExcessProperties(source, target, reportErrors) {
+                if (!isExcessPropertyCheckTarget(target) || !noImplicitAny && ts.getObjectFlags(target) & 16384) {
+                    return false;
+                }
+                var isComparingJsxAttributes = !!(ts.getObjectFlags(source) & 4096);
+                if ((relation === assignableRelation || relation === comparableRelation) &&
+                    (isTypeSubsetOf(globalObjectType, target) || (!isComparingJsxAttributes && isEmptyObjectType(target)))) {
+                    return false;
+                }
+                var reducedTarget = target;
+                var checkTypes;
+                if (target.flags & 1048576) {
+                    reducedTarget = findMatchingDiscriminantType(source, target, isRelatedTo) || filterPrimitivesIfContainsNonPrimitive(target);
+                    checkTypes = reducedTarget.flags & 1048576 ? reducedTarget.types : [reducedTarget];
+                }
+                var _loop_13 = function (prop) {
+                    if (shouldCheckAsExcessProperty(prop, source.symbol) && !isIgnoredJsxProperty(source, prop)) {
+                        if (!isKnownProperty(reducedTarget, prop.escapedName, isComparingJsxAttributes)) {
+                            if (reportErrors) {
+                                var errorTarget = filterType(reducedTarget, isExcessPropertyCheckTarget);
+                                if (!errorNode)
+                                    return { value: ts.Debug.fail() };
+                                if (ts.isJsxAttributes(errorNode) || ts.isJsxOpeningLikeElement(errorNode) || ts.isJsxOpeningLikeElement(errorNode.parent)) {
+                                    if (prop.valueDeclaration && ts.isJsxAttribute(prop.valueDeclaration) && ts.getSourceFileOfNode(errorNode) === ts.getSourceFileOfNode(prop.valueDeclaration.name)) {
+                                        errorNode = prop.valueDeclaration.name;
+                                    }
+                                    reportError(ts.Diagnostics.Property_0_does_not_exist_on_type_1, symbolToString(prop), typeToString(errorTarget));
+                                }
+                                else {
+                                    var objectLiteralDeclaration_1 = source.symbol && ts.firstOrUndefined(source.symbol.declarations);
+                                    var suggestion = void 0;
+                                    if (prop.valueDeclaration && ts.findAncestor(prop.valueDeclaration, function (d) { return d === objectLiteralDeclaration_1; }) && ts.getSourceFileOfNode(objectLiteralDeclaration_1) === ts.getSourceFileOfNode(errorNode)) {
+                                        var propDeclaration = prop.valueDeclaration;
+                                        ts.Debug.assertNode(propDeclaration, ts.isObjectLiteralElementLike);
+                                        errorNode = propDeclaration;
+                                        var name = propDeclaration.name;
+                                        if (ts.isIdentifier(name)) {
+                                            suggestion = getSuggestionForNonexistentProperty(name, errorTarget);
+                                        }
+                                    }
+                                    if (suggestion !== undefined) {
+                                        reportError(ts.Diagnostics.Object_literal_may_only_specify_known_properties_but_0_does_not_exist_in_type_1_Did_you_mean_to_write_2, symbolToString(prop), typeToString(errorTarget), suggestion);
+                                    }
+                                    else {
+                                        reportError(ts.Diagnostics.Object_literal_may_only_specify_known_properties_and_0_does_not_exist_in_type_1, symbolToString(prop), typeToString(errorTarget));
+                                    }
+                                }
+                            }
+                            return { value: true };
+                        }
+                        if (checkTypes && !isRelatedTo(getTypeOfSymbol(prop), getTypeOfPropertyInTypes(checkTypes, prop.escapedName), reportErrors)) {
+                            if (reportErrors) {
+                                reportIncompatibleError(ts.Diagnostics.Types_of_property_0_are_incompatible, symbolToString(prop));
+                            }
+                            return { value: true };
+                        }
+                    }
+                };
+                for (var _i = 0, _a = getPropertiesOfType(source); _i < _a.length; _i++) {
+                    var prop = _a[_i];
+                    var state_5 = _loop_13(prop);
+                    if (typeof state_5 === "object")
+                        return state_5.value;
+                }
+                return false;
+            }
+            function shouldCheckAsExcessProperty(prop, container) {
+                return prop.valueDeclaration && container.valueDeclaration && prop.valueDeclaration.parent === container.valueDeclaration;
+            }
+            function eachTypeRelatedToSomeType(source, target) {
+                var result = -1;
+                var sourceTypes = source.types;
+                for (var _i = 0, sourceTypes_1 = sourceTypes; _i < sourceTypes_1.length; _i++) {
+                    var sourceType = sourceTypes_1[_i];
+                    var related = typeRelatedToSomeType(sourceType, target, false);
+                    if (!related) {
+                        return 0;
+                    }
+                    result &= related;
+                }
+                return result;
+            }
+            function typeRelatedToSomeType(source, target, reportErrors) {
+                var targetTypes = target.types;
+                if (target.flags & 1048576 && containsType(targetTypes, source)) {
+                    return -1;
+                }
+                for (var _i = 0, targetTypes_1 = targetTypes; _i < targetTypes_1.length; _i++) {
+                    var type = targetTypes_1[_i];
+                    var related = isRelatedTo(source, type, false);
+                    if (related) {
+                        return related;
+                    }
+                }
+                if (reportErrors) {
+                    var bestMatchingType = getBestMatchingType(source, target, isRelatedTo);
+                    isRelatedTo(source, bestMatchingType || targetTypes[targetTypes.length - 1], true);
+                }
+                return 0;
+            }
+            function typeRelatedToEachType(source, target, reportErrors, intersectionState) {
+                var result = -1;
+                var targetTypes = target.types;
+                for (var _i = 0, targetTypes_2 = targetTypes; _i < targetTypes_2.length; _i++) {
+                    var targetType = targetTypes_2[_i];
+                    var related = isRelatedTo(source, targetType, reportErrors, undefined, intersectionState);
+                    if (!related) {
+                        return 0;
+                    }
+                    result &= related;
+                }
+                return result;
+            }
+            function someTypeRelatedToType(source, target, reportErrors, intersectionState) {
+                var sourceTypes = source.types;
+                if (source.flags & 1048576 && containsType(sourceTypes, target)) {
+                    return -1;
+                }
+                var len = sourceTypes.length;
+                for (var i = 0; i < len; i++) {
+                    var related = isRelatedTo(sourceTypes[i], target, reportErrors && i === len - 1, undefined, intersectionState);
+                    if (related) {
+                        return related;
+                    }
+                }
+                return 0;
+            }
+            function eachTypeRelatedToType(source, target, reportErrors, intersectionState) {
+                var result = -1;
+                var sourceTypes = source.types;
+                for (var i = 0; i < sourceTypes.length; i++) {
+                    var sourceType = sourceTypes[i];
+                    if (target.flags & 1048576 && target.types.length === sourceTypes.length) {
+                        var related_1 = isRelatedTo(sourceType, target.types[i], false, undefined, intersectionState);
+                        if (related_1) {
+                            result &= related_1;
+                            continue;
+                        }
+                    }
+                    var related = isRelatedTo(sourceType, target, reportErrors, undefined, intersectionState);
+                    if (!related) {
+                        return 0;
+                    }
+                    result &= related;
+                }
+                return result;
+            }
+            function typeArgumentsRelatedTo(sources, targets, variances, reportErrors, intersectionState) {
+                if (sources === void 0) { sources = ts.emptyArray; }
+                if (targets === void 0) { targets = ts.emptyArray; }
+                if (variances === void 0) { variances = ts.emptyArray; }
+                if (sources.length !== targets.length && relation === identityRelation) {
+                    return 0;
+                }
+                var length = sources.length <= targets.length ? sources.length : targets.length;
+                var result = -1;
+                for (var i = 0; i < length; i++) {
+                    var varianceFlags = i < variances.length ? variances[i] : 1;
+                    var variance = varianceFlags & 7;
+                    if (variance !== 4) {
+                        var s = sources[i];
+                        var t = targets[i];
+                        var related = -1;
+                        if (varianceFlags & 8) {
+                            related = relation === identityRelation ? isRelatedTo(s, t, false) : compareTypesIdentical(s, t);
+                        }
+                        else if (variance === 1) {
+                            related = isRelatedTo(s, t, reportErrors, undefined, intersectionState);
+                        }
+                        else if (variance === 2) {
+                            related = isRelatedTo(t, s, reportErrors, undefined, intersectionState);
+                        }
+                        else if (variance === 3) {
+                            related = isRelatedTo(t, s, false);
+                            if (!related) {
+                                related = isRelatedTo(s, t, reportErrors, undefined, intersectionState);
+                            }
+                        }
+                        else {
+                            related = isRelatedTo(s, t, reportErrors, undefined, intersectionState);
+                            if (related) {
+                                related &= isRelatedTo(t, s, reportErrors, undefined, intersectionState);
+                            }
+                        }
+                        if (!related) {
+                            return 0;
+                        }
+                        result &= related;
+                    }
+                }
+                return result;
+            }
+            function recursiveTypeRelatedTo(source, target, reportErrors, intersectionState) {
+                if (overflow) {
+                    return 0;
+                }
+                var id = getRelationKey(source, target, intersectionState | (inPropertyCheck ? 8 : 0), relation);
+                var entry = relation.get(id);
+                if (entry !== undefined) {
+                    if (reportErrors && entry & 2 && !(entry & 4)) {
+                    }
+                    else {
+                        if (outofbandVarianceMarkerHandler) {
+                            var saved = entry & 24;
+                            if (saved & 8) {
+                                instantiateType(source, makeFunctionTypeMapper(reportUnmeasurableMarkers));
+                            }
+                            if (saved & 16) {
+                                instantiateType(source, makeFunctionTypeMapper(reportUnreliableMarkers));
+                            }
+                        }
+                        return entry & 1 ? -1 : 0;
+                    }
+                }
+                if (!maybeKeys) {
+                    maybeKeys = [];
+                    sourceStack = [];
+                    targetStack = [];
+                }
+                else {
+                    for (var i = 0; i < maybeCount; i++) {
+                        if (id === maybeKeys[i]) {
+                            return 1;
+                        }
+                    }
+                    if (depth === 100) {
+                        overflow = true;
+                        return 0;
+                    }
+                }
+                var maybeStart = maybeCount;
+                maybeKeys[maybeCount] = id;
+                maybeCount++;
+                sourceStack[depth] = source;
+                targetStack[depth] = target;
+                depth++;
+                var saveExpandingFlags = expandingFlags;
+                if (!(expandingFlags & 1) && isDeeplyNestedType(source, sourceStack, depth))
+                    expandingFlags |= 1;
+                if (!(expandingFlags & 2) && isDeeplyNestedType(target, targetStack, depth))
+                    expandingFlags |= 2;
+                var originalHandler;
+                var propagatingVarianceFlags = 0;
+                if (outofbandVarianceMarkerHandler) {
+                    originalHandler = outofbandVarianceMarkerHandler;
+                    outofbandVarianceMarkerHandler = function (onlyUnreliable) {
+                        propagatingVarianceFlags |= onlyUnreliable ? 16 : 8;
+                        return originalHandler(onlyUnreliable);
+                    };
+                }
+                var result = expandingFlags !== 3 ? structuredTypeRelatedTo(source, target, reportErrors, intersectionState) : 1;
+                if (outofbandVarianceMarkerHandler) {
+                    outofbandVarianceMarkerHandler = originalHandler;
+                }
+                expandingFlags = saveExpandingFlags;
+                depth--;
+                if (result) {
+                    if (result === -1 || depth === 0) {
+                        for (var i = maybeStart; i < maybeCount; i++) {
+                            relation.set(maybeKeys[i], 1 | propagatingVarianceFlags);
+                        }
+                        maybeCount = maybeStart;
+                    }
+                }
+                else {
+                    relation.set(id, (reportErrors ? 4 : 0) | 2 | propagatingVarianceFlags);
+                    maybeCount = maybeStart;
+                }
+                return result;
+            }
+            function structuredTypeRelatedTo(source, target, reportErrors, intersectionState) {
+                if (intersectionState & 4) {
+                    return propertiesRelatedTo(source, target, reportErrors, undefined, 0);
+                }
+                var flags = source.flags & target.flags;
+                if (relation === identityRelation && !(flags & 524288)) {
+                    if (flags & 4194304) {
+                        return isRelatedTo(source.type, target.type, false);
+                    }
+                    var result_6 = 0;
+                    if (flags & 8388608) {
+                        if (result_6 = isRelatedTo(source.objectType, target.objectType, false)) {
+                            if (result_6 &= isRelatedTo(source.indexType, target.indexType, false)) {
+                                return result_6;
+                            }
+                        }
+                    }
+                    if (flags & 16777216) {
+                        if (source.root.isDistributive === target.root.isDistributive) {
+                            if (result_6 = isRelatedTo(source.checkType, target.checkType, false)) {
+                                if (result_6 &= isRelatedTo(source.extendsType, target.extendsType, false)) {
+                                    if (result_6 &= isRelatedTo(getTrueTypeFromConditionalType(source), getTrueTypeFromConditionalType(target), false)) {
+                                        if (result_6 &= isRelatedTo(getFalseTypeFromConditionalType(source), getFalseTypeFromConditionalType(target), false)) {
+                                            return result_6;
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                    if (flags & 33554432) {
+                        return isRelatedTo(source.substitute, target.substitute, false);
+                    }
+                    return 0;
+                }
+                var result;
+                var originalErrorInfo;
+                var varianceCheckFailed = false;
+                var saveErrorInfo = captureErrorCalculationState();
+                if (source.flags & (524288 | 16777216) && source.aliasSymbol &&
+                    source.aliasTypeArguments && source.aliasSymbol === target.aliasSymbol &&
+                    !(source.aliasTypeArgumentsContainsMarker || target.aliasTypeArgumentsContainsMarker)) {
+                    var variances = getAliasVariances(source.aliasSymbol);
+                    if (variances === ts.emptyArray) {
+                        return 1;
+                    }
+                    var varianceResult = relateVariances(source.aliasTypeArguments, target.aliasTypeArguments, variances, intersectionState);
+                    if (varianceResult !== undefined) {
+                        return varianceResult;
+                    }
+                }
+                if (target.flags & 262144) {
+                    if (ts.getObjectFlags(source) & 32 && isRelatedTo(getIndexType(target), getConstraintTypeFromMappedType(source))) {
+                        if (!(getMappedTypeModifiers(source) & 4)) {
+                            var templateType = getTemplateTypeFromMappedType(source);
+                            var indexedAccessType = getIndexedAccessType(target, getTypeParameterFromMappedType(source));
+                            if (result = isRelatedTo(templateType, indexedAccessType, reportErrors)) {
+                                return result;
+                            }
+                        }
+                    }
+                }
+                else if (target.flags & 4194304) {
+                    if (source.flags & 4194304) {
+                        if (result = isRelatedTo(target.type, source.type, false)) {
+                            return result;
+                        }
+                    }
+                    var constraint = getSimplifiedTypeOrConstraint(target.type);
+                    if (constraint) {
+                        if (isRelatedTo(source, getIndexType(constraint, target.stringsOnly), reportErrors) === -1) {
+                            return -1;
+                        }
+                    }
+                }
+                else if (target.flags & 8388608) {
+                    if (relation !== identityRelation) {
+                        var objectType = target.objectType;
+                        var indexType = target.indexType;
+                        var baseObjectType = getBaseConstraintOfType(objectType) || objectType;
+                        var baseIndexType = getBaseConstraintOfType(indexType) || indexType;
+                        if (!isGenericObjectType(baseObjectType) && !isGenericIndexType(baseIndexType)) {
+                            var accessFlags = 2 | (baseObjectType !== objectType ? 1 : 0);
+                            var constraint = getIndexedAccessTypeOrUndefined(baseObjectType, baseIndexType, undefined, accessFlags);
+                            if (constraint && (result = isRelatedTo(source, constraint, reportErrors))) {
+                                return result;
+                            }
+                        }
+                    }
+                }
+                else if (isGenericMappedType(target)) {
+                    var template = getTemplateTypeFromMappedType(target);
+                    var modifiers = getMappedTypeModifiers(target);
+                    if (!(modifiers & 8)) {
+                        if (template.flags & 8388608 && template.objectType === source &&
+                            template.indexType === getTypeParameterFromMappedType(target)) {
+                            return -1;
+                        }
+                        if (!isGenericMappedType(source)) {
+                            var targetConstraint = getConstraintTypeFromMappedType(target);
+                            var sourceKeys = getIndexType(source, undefined, true);
+                            var includeOptional = modifiers & 4;
+                            var filteredByApplicability = includeOptional ? intersectTypes(targetConstraint, sourceKeys) : undefined;
+                            if (includeOptional
+                                ? !(filteredByApplicability.flags & 131072)
+                                : isRelatedTo(targetConstraint, sourceKeys)) {
+                                var typeParameter = getTypeParameterFromMappedType(target);
+                                var indexingType = filteredByApplicability ? getIntersectionType([filteredByApplicability, typeParameter]) : typeParameter;
+                                var indexedAccessType = getIndexedAccessType(source, indexingType);
+                                var templateType = getTemplateTypeFromMappedType(target);
+                                if (result = isRelatedTo(indexedAccessType, templateType, reportErrors)) {
+                                    return result;
+                                }
+                            }
+                            originalErrorInfo = errorInfo;
+                            resetErrorInfo(saveErrorInfo);
+                        }
+                    }
+                }
+                if (source.flags & 8650752) {
+                    if (source.flags & 8388608 && target.flags & 8388608) {
+                        if (result = isRelatedTo(source.objectType, target.objectType, reportErrors)) {
+                            result &= isRelatedTo(source.indexType, target.indexType, reportErrors);
+                        }
+                        if (result) {
+                            resetErrorInfo(saveErrorInfo);
+                            return result;
+                        }
+                    }
+                    else {
+                        var constraint = getConstraintOfType(source);
+                        if (!constraint || (source.flags & 262144 && constraint.flags & 1)) {
+                            if (result = isRelatedTo(emptyObjectType, extractTypesOfKind(target, ~67108864))) {
+                                resetErrorInfo(saveErrorInfo);
+                                return result;
+                            }
+                        }
+                        else if (result = isRelatedTo(constraint, target, false, undefined, intersectionState)) {
+                            resetErrorInfo(saveErrorInfo);
+                            return result;
+                        }
+                        else if (result = isRelatedTo(getTypeWithThisArgument(constraint, source), target, reportErrors, undefined, intersectionState)) {
+                            resetErrorInfo(saveErrorInfo);
+                            return result;
+                        }
+                    }
+                }
+                else if (source.flags & 4194304) {
+                    if (result = isRelatedTo(keyofConstraintType, target, reportErrors)) {
+                        resetErrorInfo(saveErrorInfo);
+                        return result;
+                    }
+                }
+                else if (source.flags & 16777216) {
+                    if (target.flags & 16777216) {
+                        var sourceParams = source.root.inferTypeParameters;
+                        var sourceExtends = source.extendsType;
+                        var mapper = void 0;
+                        if (sourceParams) {
+                            var ctx = createInferenceContext(sourceParams, undefined, 0, isRelatedTo);
+                            inferTypes(ctx.inferences, target.extendsType, sourceExtends, 128 | 256);
+                            sourceExtends = instantiateType(sourceExtends, ctx.mapper);
+                            mapper = ctx.mapper;
+                        }
+                        if (isTypeIdenticalTo(sourceExtends, target.extendsType) &&
+                            (isRelatedTo(source.checkType, target.checkType) || isRelatedTo(target.checkType, source.checkType))) {
+                            if (result = isRelatedTo(instantiateType(getTrueTypeFromConditionalType(source), mapper), getTrueTypeFromConditionalType(target), reportErrors)) {
+                                result &= isRelatedTo(getFalseTypeFromConditionalType(source), getFalseTypeFromConditionalType(target), reportErrors);
+                            }
+                            if (result) {
+                                resetErrorInfo(saveErrorInfo);
+                                return result;
+                            }
+                        }
+                    }
+                    else {
+                        var distributiveConstraint = getConstraintOfDistributiveConditionalType(source);
+                        if (distributiveConstraint) {
+                            if (result = isRelatedTo(distributiveConstraint, target, reportErrors)) {
+                                resetErrorInfo(saveErrorInfo);
+                                return result;
+                            }
+                        }
+                    }
+                    var defaultConstraint = getDefaultConstraintOfConditionalType(source);
+                    if (defaultConstraint) {
+                        if (result = isRelatedTo(defaultConstraint, target, reportErrors)) {
+                            resetErrorInfo(saveErrorInfo);
+                            return result;
+                        }
+                    }
+                }
+                else {
+                    if (relation !== subtypeRelation && relation !== strictSubtypeRelation && isPartialMappedType(target) && isEmptyObjectType(source)) {
+                        return -1;
+                    }
+                    if (isGenericMappedType(target)) {
+                        if (isGenericMappedType(source)) {
+                            if (result = mappedTypeRelatedTo(source, target, reportErrors)) {
+                                resetErrorInfo(saveErrorInfo);
+                                return result;
+                            }
+                        }
+                        return 0;
+                    }
+                    var sourceIsPrimitive = !!(source.flags & 131068);
+                    if (relation !== identityRelation) {
+                        source = getApparentType(source);
+                    }
+                    else if (isGenericMappedType(source)) {
+                        return 0;
+                    }
+                    if (ts.getObjectFlags(source) & 4 && ts.getObjectFlags(target) & 4 && source.target === target.target &&
+                        !(ts.getObjectFlags(source) & 8192 || ts.getObjectFlags(target) & 8192)) {
+                        var variances = getVariances(source.target);
+                        if (variances === ts.emptyArray) {
+                            return 1;
+                        }
+                        var varianceResult = relateVariances(getTypeArguments(source), getTypeArguments(target), variances, intersectionState);
+                        if (varianceResult !== undefined) {
+                            return varianceResult;
+                        }
+                    }
+                    else if (isReadonlyArrayType(target) ? isArrayType(source) || isTupleType(source) : isArrayType(target) && isTupleType(source) && !source.target.readonly) {
+                        if (relation !== identityRelation) {
+                            return isRelatedTo(getIndexTypeOfType(source, 1) || anyType, getIndexTypeOfType(target, 1) || anyType, reportErrors);
+                        }
+                        else {
+                            return 0;
+                        }
+                    }
+                    else if ((relation === subtypeRelation || relation === strictSubtypeRelation) && isEmptyObjectType(target) && ts.getObjectFlags(target) & 32768 && !isEmptyObjectType(source)) {
+                        return 0;
+                    }
+                    if (source.flags & (524288 | 2097152) && target.flags & 524288) {
+                        var reportStructuralErrors = reportErrors && errorInfo === saveErrorInfo.errorInfo && !sourceIsPrimitive;
+                        result = propertiesRelatedTo(source, target, reportStructuralErrors, undefined, intersectionState);
+                        if (result) {
+                            result &= signaturesRelatedTo(source, target, 0, reportStructuralErrors);
+                            if (result) {
+                                result &= signaturesRelatedTo(source, target, 1, reportStructuralErrors);
+                                if (result) {
+                                    result &= indexTypesRelatedTo(source, target, 0, sourceIsPrimitive, reportStructuralErrors, intersectionState);
+                                    if (result) {
+                                        result &= indexTypesRelatedTo(source, target, 1, sourceIsPrimitive, reportStructuralErrors, intersectionState);
+                                    }
+                                }
+                            }
+                        }
+                        if (varianceCheckFailed && result) {
+                            errorInfo = originalErrorInfo || errorInfo || saveErrorInfo.errorInfo;
+                        }
+                        else if (result) {
+                            return result;
+                        }
+                    }
+                    if (source.flags & (524288 | 2097152) && target.flags & 1048576) {
+                        var objectOnlyTarget = extractTypesOfKind(target, 524288 | 2097152 | 33554432);
+                        if (objectOnlyTarget.flags & 1048576) {
+                            var result_7 = typeRelatedToDiscriminatedType(source, objectOnlyTarget);
+                            if (result_7) {
+                                return result_7;
+                            }
+                        }
+                    }
+                }
+                return 0;
+                function relateVariances(sourceTypeArguments, targetTypeArguments, variances, intersectionState) {
+                    if (result = typeArgumentsRelatedTo(sourceTypeArguments, targetTypeArguments, variances, reportErrors, intersectionState)) {
+                        return result;
+                    }
+                    if (ts.some(variances, function (v) { return !!(v & 24); })) {
+                        originalErrorInfo = undefined;
+                        resetErrorInfo(saveErrorInfo);
+                        return undefined;
+                    }
+                    var allowStructuralFallback = targetTypeArguments && hasCovariantVoidArgument(targetTypeArguments, variances);
+                    varianceCheckFailed = !allowStructuralFallback;
+                    if (variances !== ts.emptyArray && !allowStructuralFallback) {
+                        if (varianceCheckFailed && !(reportErrors && ts.some(variances, function (v) { return (v & 7) === 0; }))) {
+                            return 0;
+                        }
+                        originalErrorInfo = errorInfo;
+                        resetErrorInfo(saveErrorInfo);
+                    }
+                }
+            }
+            function reportUnmeasurableMarkers(p) {
+                if (outofbandVarianceMarkerHandler && (p === markerSuperType || p === markerSubType || p === markerOtherType)) {
+                    outofbandVarianceMarkerHandler(false);
+                }
+                return p;
+            }
+            function reportUnreliableMarkers(p) {
+                if (outofbandVarianceMarkerHandler && (p === markerSuperType || p === markerSubType || p === markerOtherType)) {
+                    outofbandVarianceMarkerHandler(true);
+                }
+                return p;
+            }
+            function mappedTypeRelatedTo(source, target, reportErrors) {
+                var modifiersRelated = relation === comparableRelation || (relation === identityRelation ? getMappedTypeModifiers(source) === getMappedTypeModifiers(target) :
+                    getCombinedMappedTypeOptionality(source) <= getCombinedMappedTypeOptionality(target));
+                if (modifiersRelated) {
+                    var result_8;
+                    var targetConstraint = getConstraintTypeFromMappedType(target);
+                    var sourceConstraint = instantiateType(getConstraintTypeFromMappedType(source), makeFunctionTypeMapper(getCombinedMappedTypeOptionality(source) < 0 ? reportUnmeasurableMarkers : reportUnreliableMarkers));
+                    if (result_8 = isRelatedTo(targetConstraint, sourceConstraint, reportErrors)) {
+                        var mapper = createTypeMapper([getTypeParameterFromMappedType(source)], [getTypeParameterFromMappedType(target)]);
+                        return result_8 & isRelatedTo(instantiateType(getTemplateTypeFromMappedType(source), mapper), getTemplateTypeFromMappedType(target), reportErrors);
+                    }
+                }
+                return 0;
+            }
+            function typeRelatedToDiscriminatedType(source, target) {
+                var sourceProperties = getPropertiesOfType(source);
+                var sourcePropertiesFiltered = findDiscriminantProperties(sourceProperties, target);
+                if (!sourcePropertiesFiltered)
+                    return 0;
+                var numCombinations = 1;
+                for (var _i = 0, sourcePropertiesFiltered_1 = sourcePropertiesFiltered; _i < sourcePropertiesFiltered_1.length; _i++) {
+                    var sourceProperty = sourcePropertiesFiltered_1[_i];
+                    numCombinations *= countTypes(getTypeOfSymbol(sourceProperty));
+                    if (numCombinations > 25) {
+                        return 0;
+                    }
+                }
+                var sourceDiscriminantTypes = new Array(sourcePropertiesFiltered.length);
+                var excludedProperties = ts.createUnderscoreEscapedMap();
+                for (var i = 0; i < sourcePropertiesFiltered.length; i++) {
+                    var sourceProperty = sourcePropertiesFiltered[i];
+                    var sourcePropertyType = getTypeOfSymbol(sourceProperty);
+                    sourceDiscriminantTypes[i] = sourcePropertyType.flags & 1048576
+                        ? sourcePropertyType.types
+                        : [sourcePropertyType];
+                    excludedProperties.set(sourceProperty.escapedName, true);
+                }
+                var discriminantCombinations = ts.cartesianProduct(sourceDiscriminantTypes);
+                var matchingTypes = [];
+                var _loop_14 = function (combination) {
+                    var hasMatch = false;
+                    outer: for (var _i = 0, _a = target.types; _i < _a.length; _i++) {
+                        var type = _a[_i];
+                        var _loop_15 = function (i) {
+                            var sourceProperty = sourcePropertiesFiltered[i];
+                            var targetProperty = getPropertyOfType(type, sourceProperty.escapedName);
+                            if (!targetProperty)
+                                return "continue-outer";
+                            if (sourceProperty === targetProperty)
+                                return "continue";
+                            var related = propertyRelatedTo(source, target, sourceProperty, targetProperty, function (_) { return combination[i]; }, false, 0, strictNullChecks || relation === comparableRelation);
+                            if (!related) {
+                                return "continue-outer";
+                            }
+                        };
+                        for (var i = 0; i < sourcePropertiesFiltered.length; i++) {
+                            var state_7 = _loop_15(i);
+                            switch (state_7) {
+                                case "continue-outer": continue outer;
+                            }
+                        }
+                        ts.pushIfUnique(matchingTypes, type, ts.equateValues);
+                        hasMatch = true;
+                    }
+                    if (!hasMatch) {
+                        return { value: 0 };
+                    }
+                };
+                for (var _a = 0, discriminantCombinations_1 = discriminantCombinations; _a < discriminantCombinations_1.length; _a++) {
+                    var combination = discriminantCombinations_1[_a];
+                    var state_6 = _loop_14(combination);
+                    if (typeof state_6 === "object")
+                        return state_6.value;
+                }
+                var result = -1;
+                for (var _b = 0, matchingTypes_1 = matchingTypes; _b < matchingTypes_1.length; _b++) {
+                    var type = matchingTypes_1[_b];
+                    result &= propertiesRelatedTo(source, type, false, excludedProperties, 0);
+                    if (result) {
+                        result &= signaturesRelatedTo(source, type, 0, false);
+                        if (result) {
+                            result &= signaturesRelatedTo(source, type, 1, false);
+                            if (result) {
+                                result &= indexTypesRelatedTo(source, type, 0, false, false, 0);
+                                if (result) {
+                                    result &= indexTypesRelatedTo(source, type, 1, false, false, 0);
+                                }
+                            }
+                        }
+                    }
+                    if (!result) {
+                        return result;
+                    }
+                }
+                return result;
+            }
+            function excludeProperties(properties, excludedProperties) {
+                if (!excludedProperties || properties.length === 0)
+                    return properties;
+                var result;
+                for (var i = 0; i < properties.length; i++) {
+                    if (!excludedProperties.has(properties[i].escapedName)) {
+                        if (result) {
+                            result.push(properties[i]);
+                        }
+                    }
+                    else if (!result) {
+                        result = properties.slice(0, i);
+                    }
+                }
+                return result || properties;
+            }
+            function isPropertySymbolTypeRelated(sourceProp, targetProp, getTypeOfSourceProperty, reportErrors, intersectionState) {
+                var targetIsOptional = strictNullChecks && !!(ts.getCheckFlags(targetProp) & 48);
+                var source = getTypeOfSourceProperty(sourceProp);
+                if (ts.getCheckFlags(targetProp) & 65536 && !getSymbolLinks(targetProp).type) {
+                    var links = getSymbolLinks(targetProp);
+                    ts.Debug.assertIsDefined(links.deferralParent);
+                    ts.Debug.assertIsDefined(links.deferralConstituents);
+                    var unionParent = !!(links.deferralParent.flags & 1048576);
+                    var result_9 = unionParent ? 0 : -1;
+                    var targetTypes = links.deferralConstituents;
+                    for (var _i = 0, targetTypes_3 = targetTypes; _i < targetTypes_3.length; _i++) {
+                        var targetType = targetTypes_3[_i];
+                        var related = isRelatedTo(source, targetType, false, undefined, unionParent ? 0 : 2);
+                        if (!unionParent) {
+                            if (!related) {
+                                return isRelatedTo(source, addOptionality(getTypeOfSymbol(targetProp), targetIsOptional), reportErrors);
+                            }
+                            result_9 &= related;
+                        }
+                        else {
+                            if (related) {
+                                return related;
+                            }
+                        }
+                    }
+                    if (unionParent && !result_9 && targetIsOptional) {
+                        result_9 = isRelatedTo(source, undefinedType);
+                    }
+                    if (unionParent && !result_9 && reportErrors) {
+                        return isRelatedTo(source, addOptionality(getTypeOfSymbol(targetProp), targetIsOptional), reportErrors);
+                    }
+                    return result_9;
+                }
+                else {
+                    return isRelatedTo(source, addOptionality(getTypeOfSymbol(targetProp), targetIsOptional), reportErrors, undefined, intersectionState);
+                }
+            }
+            function propertyRelatedTo(source, target, sourceProp, targetProp, getTypeOfSourceProperty, reportErrors, intersectionState, skipOptional) {
+                var sourcePropFlags = ts.getDeclarationModifierFlagsFromSymbol(sourceProp);
+                var targetPropFlags = ts.getDeclarationModifierFlagsFromSymbol(targetProp);
+                if (sourcePropFlags & 8 || targetPropFlags & 8) {
+                    if (sourceProp.valueDeclaration !== targetProp.valueDeclaration) {
+                        if (reportErrors) {
+                            if (sourcePropFlags & 8 && targetPropFlags & 8) {
+                                reportError(ts.Diagnostics.Types_have_separate_declarations_of_a_private_property_0, symbolToString(targetProp));
+                            }
+                            else {
+                                reportError(ts.Diagnostics.Property_0_is_private_in_type_1_but_not_in_type_2, symbolToString(targetProp), typeToString(sourcePropFlags & 8 ? source : target), typeToString(sourcePropFlags & 8 ? target : source));
+                            }
+                        }
+                        return 0;
+                    }
+                }
+                else if (targetPropFlags & 16) {
+                    if (!isValidOverrideOf(sourceProp, targetProp)) {
+                        if (reportErrors) {
+                            reportError(ts.Diagnostics.Property_0_is_protected_but_type_1_is_not_a_class_derived_from_2, symbolToString(targetProp), typeToString(getDeclaringClass(sourceProp) || source), typeToString(getDeclaringClass(targetProp) || target));
+                        }
+                        return 0;
+                    }
+                }
+                else if (sourcePropFlags & 16) {
+                    if (reportErrors) {
+                        reportError(ts.Diagnostics.Property_0_is_protected_in_type_1_but_public_in_type_2, symbolToString(targetProp), typeToString(source), typeToString(target));
+                    }
+                    return 0;
+                }
+                var related = isPropertySymbolTypeRelated(sourceProp, targetProp, getTypeOfSourceProperty, reportErrors, intersectionState);
+                if (!related) {
+                    if (reportErrors) {
+                        reportIncompatibleError(ts.Diagnostics.Types_of_property_0_are_incompatible, symbolToString(targetProp));
+                    }
+                    return 0;
+                }
+                if (!skipOptional && sourceProp.flags & 16777216 && !(targetProp.flags & 16777216)) {
+                    if (reportErrors) {
+                        reportError(ts.Diagnostics.Property_0_is_optional_in_type_1_but_required_in_type_2, symbolToString(targetProp), typeToString(source), typeToString(target));
+                    }
+                    return 0;
+                }
+                return related;
+            }
+            function reportUnmatchedProperty(source, target, unmatchedProperty, requireOptionalProperties) {
+                var shouldSkipElaboration = false;
+                if (unmatchedProperty.valueDeclaration
+                    && ts.isNamedDeclaration(unmatchedProperty.valueDeclaration)
+                    && ts.isPrivateIdentifier(unmatchedProperty.valueDeclaration.name)
+                    && source.symbol
+                    && source.symbol.flags & 32) {
+                    var privateIdentifierDescription = unmatchedProperty.valueDeclaration.name.escapedText;
+                    var symbolTableKey = ts.getSymbolNameForPrivateIdentifier(source.symbol, privateIdentifierDescription);
+                    if (symbolTableKey && getPropertyOfType(source, symbolTableKey)) {
+                        var sourceName = ts.getDeclarationName(source.symbol.valueDeclaration);
+                        var targetName = ts.getDeclarationName(target.symbol.valueDeclaration);
+                        reportError(ts.Diagnostics.Property_0_in_type_1_refers_to_a_different_member_that_cannot_be_accessed_from_within_type_2, diagnosticName(privateIdentifierDescription), diagnosticName(sourceName.escapedText === "" ? anon : sourceName), diagnosticName(targetName.escapedText === "" ? anon : targetName));
+                        return;
+                    }
+                }
+                var props = ts.arrayFrom(getUnmatchedProperties(source, target, requireOptionalProperties, false));
+                if (!headMessage || (headMessage.code !== ts.Diagnostics.Class_0_incorrectly_implements_interface_1.code &&
+                    headMessage.code !== ts.Diagnostics.Class_0_incorrectly_implements_class_1_Did_you_mean_to_extend_1_and_inherit_its_members_as_a_subclass.code)) {
+                    shouldSkipElaboration = true;
+                }
+                if (props.length === 1) {
+                    var propName = symbolToString(unmatchedProperty);
+                    reportError.apply(void 0, __spreadArrays([ts.Diagnostics.Property_0_is_missing_in_type_1_but_required_in_type_2, propName], getTypeNamesForErrorDisplay(source, target)));
+                    if (ts.length(unmatchedProperty.declarations)) {
+                        associateRelatedInfo(ts.createDiagnosticForNode(unmatchedProperty.declarations[0], ts.Diagnostics._0_is_declared_here, propName));
+                    }
+                    if (shouldSkipElaboration && errorInfo) {
+                        overrideNextErrorInfo++;
+                    }
+                }
+                else if (tryElaborateArrayLikeErrors(source, target, false)) {
+                    if (props.length > 5) {
+                        reportError(ts.Diagnostics.Type_0_is_missing_the_following_properties_from_type_1_Colon_2_and_3_more, typeToString(source), typeToString(target), ts.map(props.slice(0, 4), function (p) { return symbolToString(p); }).join(", "), props.length - 4);
+                    }
+                    else {
+                        reportError(ts.Diagnostics.Type_0_is_missing_the_following_properties_from_type_1_Colon_2, typeToString(source), typeToString(target), ts.map(props, function (p) { return symbolToString(p); }).join(", "));
+                    }
+                    if (shouldSkipElaboration && errorInfo) {
+                        overrideNextErrorInfo++;
+                    }
+                }
+            }
+            function propertiesRelatedTo(source, target, reportErrors, excludedProperties, intersectionState) {
+                if (relation === identityRelation) {
+                    return propertiesIdenticalTo(source, target, excludedProperties);
+                }
+                var requireOptionalProperties = (relation === subtypeRelation || relation === strictSubtypeRelation) && !isObjectLiteralType(source) && !isEmptyArrayLiteralType(source) && !isTupleType(source);
+                var unmatchedProperty = getUnmatchedProperty(source, target, requireOptionalProperties, false);
+                if (unmatchedProperty) {
+                    if (reportErrors) {
+                        reportUnmatchedProperty(source, target, unmatchedProperty, requireOptionalProperties);
+                    }
+                    return 0;
+                }
+                if (isObjectLiteralType(target)) {
+                    for (var _i = 0, _a = excludeProperties(getPropertiesOfType(source), excludedProperties); _i < _a.length; _i++) {
+                        var sourceProp = _a[_i];
+                        if (!getPropertyOfObjectType(target, sourceProp.escapedName)) {
+                            var sourceType = getTypeOfSymbol(sourceProp);
+                            if (!(sourceType === undefinedType || sourceType === undefinedWideningType || sourceType === optionalType)) {
+                                if (reportErrors) {
+                                    reportError(ts.Diagnostics.Property_0_does_not_exist_on_type_1, symbolToString(sourceProp), typeToString(target));
+                                }
+                                return 0;
+                            }
+                        }
+                    }
+                }
+                var result = -1;
+                if (isTupleType(target)) {
+                    var targetRestType = getRestTypeOfTupleType(target);
+                    if (targetRestType) {
+                        if (!isTupleType(source)) {
+                            return 0;
+                        }
+                        var sourceRestType = getRestTypeOfTupleType(source);
+                        if (sourceRestType && !isRelatedTo(sourceRestType, targetRestType, reportErrors)) {
+                            if (reportErrors) {
+                                reportError(ts.Diagnostics.Rest_signatures_are_incompatible);
+                            }
+                            return 0;
+                        }
+                        var targetCount = getTypeReferenceArity(target) - 1;
+                        var sourceCount = getTypeReferenceArity(source) - (sourceRestType ? 1 : 0);
+                        var sourceTypeArguments = getTypeArguments(source);
+                        for (var i = targetCount; i < sourceCount; i++) {
+                            var related = isRelatedTo(sourceTypeArguments[i], targetRestType, reportErrors);
+                            if (!related) {
+                                if (reportErrors) {
+                                    reportError(ts.Diagnostics.Property_0_is_incompatible_with_rest_element_type, "" + i);
+                                }
+                                return 0;
+                            }
+                            result &= related;
+                        }
+                    }
+                }
+                var properties = getPropertiesOfType(target);
+                var numericNamesOnly = isTupleType(source) && isTupleType(target);
+                for (var _b = 0, _c = excludeProperties(properties, excludedProperties); _b < _c.length; _b++) {
+                    var targetProp = _c[_b];
+                    var name = targetProp.escapedName;
+                    if (!(targetProp.flags & 4194304) && (!numericNamesOnly || isNumericLiteralName(name) || name === "length")) {
+                        var sourceProp = getPropertyOfType(source, name);
+                        if (sourceProp && sourceProp !== targetProp) {
+                            var related = propertyRelatedTo(source, target, sourceProp, targetProp, getTypeOfSymbol, reportErrors, intersectionState, relation === comparableRelation);
+                            if (!related) {
+                                return 0;
+                            }
+                            result &= related;
+                        }
+                    }
+                }
+                return result;
+            }
+            function propertiesIdenticalTo(source, target, excludedProperties) {
+                if (!(source.flags & 524288 && target.flags & 524288)) {
+                    return 0;
+                }
+                var sourceProperties = excludeProperties(getPropertiesOfObjectType(source), excludedProperties);
+                var targetProperties = excludeProperties(getPropertiesOfObjectType(target), excludedProperties);
+                if (sourceProperties.length !== targetProperties.length) {
+                    return 0;
+                }
+                var result = -1;
+                for (var _i = 0, sourceProperties_1 = sourceProperties; _i < sourceProperties_1.length; _i++) {
+                    var sourceProp = sourceProperties_1[_i];
+                    var targetProp = getPropertyOfObjectType(target, sourceProp.escapedName);
+                    if (!targetProp) {
+                        return 0;
+                    }
+                    var related = compareProperties(sourceProp, targetProp, isRelatedTo);
+                    if (!related) {
+                        return 0;
+                    }
+                    result &= related;
+                }
+                return result;
+            }
+            function signaturesRelatedTo(source, target, kind, reportErrors) {
+                if (relation === identityRelation) {
+                    return signaturesIdenticalTo(source, target, kind);
+                }
+                if (target === anyFunctionType || source === anyFunctionType) {
+                    return -1;
+                }
+                var sourceIsJSConstructor = source.symbol && isJSConstructor(source.symbol.valueDeclaration);
+                var targetIsJSConstructor = target.symbol && isJSConstructor(target.symbol.valueDeclaration);
+                var sourceSignatures = getSignaturesOfType(source, (sourceIsJSConstructor && kind === 1) ?
+                    0 : kind);
+                var targetSignatures = getSignaturesOfType(target, (targetIsJSConstructor && kind === 1) ?
+                    0 : kind);
+                if (kind === 1 && sourceSignatures.length && targetSignatures.length) {
+                    if (ts.isAbstractConstructorType(source) && !ts.isAbstractConstructorType(target)) {
+                        if (reportErrors) {
+                            reportError(ts.Diagnostics.Cannot_assign_an_abstract_constructor_type_to_a_non_abstract_constructor_type);
+                        }
+                        return 0;
+                    }
+                    if (!constructorVisibilitiesAreCompatible(sourceSignatures[0], targetSignatures[0], reportErrors)) {
+                        return 0;
+                    }
+                }
+                var result = -1;
+                var saveErrorInfo = captureErrorCalculationState();
+                var incompatibleReporter = kind === 1 ? reportIncompatibleConstructSignatureReturn : reportIncompatibleCallSignatureReturn;
+                if (ts.getObjectFlags(source) & 64 && ts.getObjectFlags(target) & 64 && source.symbol === target.symbol) {
+                    for (var i = 0; i < targetSignatures.length; i++) {
+                        var related = signatureRelatedTo(sourceSignatures[i], targetSignatures[i], true, reportErrors, incompatibleReporter(sourceSignatures[i], targetSignatures[i]));
+                        if (!related) {
+                            return 0;
+                        }
+                        result &= related;
+                    }
+                }
+                else if (sourceSignatures.length === 1 && targetSignatures.length === 1) {
+                    var eraseGenerics = relation === comparableRelation || !!compilerOptions.noStrictGenericChecks;
+                    result = signatureRelatedTo(sourceSignatures[0], targetSignatures[0], eraseGenerics, reportErrors, incompatibleReporter(sourceSignatures[0], targetSignatures[0]));
+                }
+                else {
+                    outer: for (var _i = 0, targetSignatures_1 = targetSignatures; _i < targetSignatures_1.length; _i++) {
+                        var t = targetSignatures_1[_i];
+                        var shouldElaborateErrors = reportErrors;
+                        for (var _a = 0, sourceSignatures_1 = sourceSignatures; _a < sourceSignatures_1.length; _a++) {
+                            var s = sourceSignatures_1[_a];
+                            var related = signatureRelatedTo(s, t, true, shouldElaborateErrors, incompatibleReporter(s, t));
+                            if (related) {
+                                result &= related;
+                                resetErrorInfo(saveErrorInfo);
+                                continue outer;
+                            }
+                            shouldElaborateErrors = false;
+                        }
+                        if (shouldElaborateErrors) {
+                            reportError(ts.Diagnostics.Type_0_provides_no_match_for_the_signature_1, typeToString(source), signatureToString(t, undefined, undefined, kind));
+                        }
+                        return 0;
+                    }
+                }
+                return result;
+            }
+            function reportIncompatibleCallSignatureReturn(siga, sigb) {
+                if (siga.parameters.length === 0 && sigb.parameters.length === 0) {
+                    return function (source, target) { return reportIncompatibleError(ts.Diagnostics.Call_signatures_with_no_arguments_have_incompatible_return_types_0_and_1, typeToString(source), typeToString(target)); };
+                }
+                return function (source, target) { return reportIncompatibleError(ts.Diagnostics.Call_signature_return_types_0_and_1_are_incompatible, typeToString(source), typeToString(target)); };
+            }
+            function reportIncompatibleConstructSignatureReturn(siga, sigb) {
+                if (siga.parameters.length === 0 && sigb.parameters.length === 0) {
+                    return function (source, target) { return reportIncompatibleError(ts.Diagnostics.Construct_signatures_with_no_arguments_have_incompatible_return_types_0_and_1, typeToString(source), typeToString(target)); };
+                }
+                return function (source, target) { return reportIncompatibleError(ts.Diagnostics.Construct_signature_return_types_0_and_1_are_incompatible, typeToString(source), typeToString(target)); };
+            }
+            function signatureRelatedTo(source, target, erase, reportErrors, incompatibleReporter) {
+                return compareSignaturesRelated(erase ? getErasedSignature(source) : source, erase ? getErasedSignature(target) : target, relation === strictSubtypeRelation ? 8 : 0, reportErrors, reportError, incompatibleReporter, isRelatedTo, makeFunctionTypeMapper(reportUnreliableMarkers));
+            }
+            function signaturesIdenticalTo(source, target, kind) {
+                var sourceSignatures = getSignaturesOfType(source, kind);
+                var targetSignatures = getSignaturesOfType(target, kind);
+                if (sourceSignatures.length !== targetSignatures.length) {
+                    return 0;
+                }
+                var result = -1;
+                for (var i = 0; i < sourceSignatures.length; i++) {
+                    var related = compareSignaturesIdentical(sourceSignatures[i], targetSignatures[i], false, false, false, isRelatedTo);
+                    if (!related) {
+                        return 0;
+                    }
+                    result &= related;
+                }
+                return result;
+            }
+            function eachPropertyRelatedTo(source, target, kind, reportErrors) {
+                var result = -1;
+                var props = source.flags & 2097152 ? getPropertiesOfUnionOrIntersectionType(source) : getPropertiesOfObjectType(source);
+                for (var _i = 0, props_2 = props; _i < props_2.length; _i++) {
+                    var prop = props_2[_i];
+                    if (isIgnoredJsxProperty(source, prop)) {
+                        continue;
+                    }
+                    var nameType = getSymbolLinks(prop).nameType;
+                    if (nameType && nameType.flags & 8192) {
+                        continue;
+                    }
+                    if (kind === 0 || isNumericLiteralName(prop.escapedName)) {
+                        var related = isRelatedTo(getTypeOfSymbol(prop), target, reportErrors);
+                        if (!related) {
+                            if (reportErrors) {
+                                reportError(ts.Diagnostics.Property_0_is_incompatible_with_index_signature, symbolToString(prop));
+                            }
+                            return 0;
+                        }
+                        result &= related;
+                    }
+                }
+                return result;
+            }
+            function indexTypeRelatedTo(sourceType, targetType, reportErrors) {
+                var related = isRelatedTo(sourceType, targetType, reportErrors);
+                if (!related && reportErrors) {
+                    reportError(ts.Diagnostics.Index_signatures_are_incompatible);
+                }
+                return related;
+            }
+            function indexTypesRelatedTo(source, target, kind, sourceIsPrimitive, reportErrors, intersectionState) {
+                if (relation === identityRelation) {
+                    return indexTypesIdenticalTo(source, target, kind);
+                }
+                var targetType = getIndexTypeOfType(target, kind);
+                if (!targetType || targetType.flags & 1 && !sourceIsPrimitive) {
+                    return -1;
+                }
+                if (isGenericMappedType(source)) {
+                    return kind === 0 ? isRelatedTo(getTemplateTypeFromMappedType(source), targetType, reportErrors) : 0;
+                }
+                var indexType = getIndexTypeOfType(source, kind) || kind === 1 && getIndexTypeOfType(source, 0);
+                if (indexType) {
+                    return indexTypeRelatedTo(indexType, targetType, reportErrors);
+                }
+                if (!(intersectionState & 1) && isObjectTypeWithInferableIndex(source)) {
+                    var related = eachPropertyRelatedTo(source, targetType, kind, reportErrors);
+                    if (related && kind === 0) {
+                        var numberIndexType = getIndexTypeOfType(source, 1);
+                        if (numberIndexType) {
+                            related &= indexTypeRelatedTo(numberIndexType, targetType, reportErrors);
+                        }
+                    }
+                    return related;
+                }
+                if (reportErrors) {
+                    reportError(ts.Diagnostics.Index_signature_is_missing_in_type_0, typeToString(source));
+                }
+                return 0;
+            }
+            function indexTypesIdenticalTo(source, target, indexKind) {
+                var targetInfo = getIndexInfoOfType(target, indexKind);
+                var sourceInfo = getIndexInfoOfType(source, indexKind);
+                if (!sourceInfo && !targetInfo) {
+                    return -1;
+                }
+                if (sourceInfo && targetInfo && sourceInfo.isReadonly === targetInfo.isReadonly) {
+                    return isRelatedTo(sourceInfo.type, targetInfo.type);
+                }
+                return 0;
+            }
+            function constructorVisibilitiesAreCompatible(sourceSignature, targetSignature, reportErrors) {
+                if (!sourceSignature.declaration || !targetSignature.declaration) {
+                    return true;
+                }
+                var sourceAccessibility = ts.getSelectedModifierFlags(sourceSignature.declaration, 24);
+                var targetAccessibility = ts.getSelectedModifierFlags(targetSignature.declaration, 24);
+                if (targetAccessibility === 8) {
+                    return true;
+                }
+                if (targetAccessibility === 16 && sourceAccessibility !== 8) {
+                    return true;
+                }
+                if (targetAccessibility !== 16 && !sourceAccessibility) {
+                    return true;
+                }
+                if (reportErrors) {
+                    reportError(ts.Diagnostics.Cannot_assign_a_0_constructor_type_to_a_1_constructor_type, visibilityToString(sourceAccessibility), visibilityToString(targetAccessibility));
+                }
+                return false;
+            }
+        }
+        function getBestMatchingType(source, target, isRelatedTo) {
+            if (isRelatedTo === void 0) { isRelatedTo = compareTypesAssignable; }
+            return findMatchingDiscriminantType(source, target, isRelatedTo, true) ||
+                findMatchingTypeReferenceOrTypeAliasReference(source, target) ||
+                findBestTypeForObjectLiteral(source, target) ||
+                findBestTypeForInvokable(source, target) ||
+                findMostOverlappyType(source, target);
+        }
+        function discriminateTypeByDiscriminableItems(target, discriminators, related, defaultValue, skipPartial) {
+            var discriminable = target.types.map(function (_) { return undefined; });
+            for (var _i = 0, discriminators_1 = discriminators; _i < discriminators_1.length; _i++) {
+                var _a = discriminators_1[_i], getDiscriminatingType = _a[0], propertyName = _a[1];
+                var targetProp = getUnionOrIntersectionProperty(target, propertyName);
+                if (skipPartial && targetProp && ts.getCheckFlags(targetProp) & 16) {
+                    continue;
+                }
+                var i = 0;
+                for (var _b = 0, _c = target.types; _b < _c.length; _b++) {
+                    var type = _c[_b];
+                    var targetType = getTypeOfPropertyOfType(type, propertyName);
+                    if (targetType && related(getDiscriminatingType(), targetType)) {
+                        discriminable[i] = discriminable[i] === undefined ? true : discriminable[i];
+                    }
+                    else {
+                        discriminable[i] = false;
+                    }
+                    i++;
+                }
+            }
+            var match = discriminable.indexOf(true);
+            return match === -1 || discriminable.indexOf(true, match + 1) !== -1 ? defaultValue : target.types[match];
+        }
+        function isWeakType(type) {
+            if (type.flags & 524288) {
+                var resolved = resolveStructuredTypeMembers(type);
+                return resolved.callSignatures.length === 0 && resolved.constructSignatures.length === 0 &&
+                    !resolved.stringIndexInfo && !resolved.numberIndexInfo &&
+                    resolved.properties.length > 0 &&
+                    ts.every(resolved.properties, function (p) { return !!(p.flags & 16777216); });
+            }
+            if (type.flags & 2097152) {
+                return ts.every(type.types, isWeakType);
+            }
+            return false;
+        }
+        function hasCommonProperties(source, target, isComparingJsxAttributes) {
+            for (var _i = 0, _a = getPropertiesOfType(source); _i < _a.length; _i++) {
+                var prop = _a[_i];
+                if (isKnownProperty(target, prop.escapedName, isComparingJsxAttributes)) {
+                    return true;
+                }
+            }
+            return false;
+        }
+        function getMarkerTypeReference(type, source, target) {
+            var result = createTypeReference(type, ts.map(type.typeParameters, function (t) { return t === source ? target : t; }));
+            result.objectFlags |= 8192;
+            return result;
+        }
+        function getAliasVariances(symbol) {
+            var links = getSymbolLinks(symbol);
+            return getVariancesWorker(links.typeParameters, links, function (_links, param, marker) {
+                var type = getTypeAliasInstantiation(symbol, instantiateTypes(links.typeParameters, makeUnaryTypeMapper(param, marker)));
+                type.aliasTypeArgumentsContainsMarker = true;
+                return type;
+            });
+        }
+        function getVariancesWorker(typeParameters, cache, createMarkerType) {
+            if (typeParameters === void 0) { typeParameters = ts.emptyArray; }
+            var variances = cache.variances;
+            if (!variances) {
+                cache.variances = ts.emptyArray;
+                variances = [];
+                var _loop_16 = function (tp) {
+                    var unmeasurable = false;
+                    var unreliable = false;
+                    var oldHandler = outofbandVarianceMarkerHandler;
+                    outofbandVarianceMarkerHandler = function (onlyUnreliable) { return onlyUnreliable ? unreliable = true : unmeasurable = true; };
+                    var typeWithSuper = createMarkerType(cache, tp, markerSuperType);
+                    var typeWithSub = createMarkerType(cache, tp, markerSubType);
+                    var variance = (isTypeAssignableTo(typeWithSub, typeWithSuper) ? 1 : 0) |
+                        (isTypeAssignableTo(typeWithSuper, typeWithSub) ? 2 : 0);
+                    if (variance === 3 && isTypeAssignableTo(createMarkerType(cache, tp, markerOtherType), typeWithSuper)) {
+                        variance = 4;
+                    }
+                    outofbandVarianceMarkerHandler = oldHandler;
+                    if (unmeasurable || unreliable) {
+                        if (unmeasurable) {
+                            variance |= 8;
+                        }
+                        if (unreliable) {
+                            variance |= 16;
+                        }
+                    }
+                    variances.push(variance);
+                };
+                for (var _i = 0, typeParameters_1 = typeParameters; _i < typeParameters_1.length; _i++) {
+                    var tp = typeParameters_1[_i];
+                    _loop_16(tp);
+                }
+                cache.variances = variances;
+            }
+            return variances;
+        }
+        function getVariances(type) {
+            if (type === globalArrayType || type === globalReadonlyArrayType || type.objectFlags & 8) {
+                return arrayVariances;
+            }
+            return getVariancesWorker(type.typeParameters, type, getMarkerTypeReference);
+        }
+        function hasCovariantVoidArgument(typeArguments, variances) {
+            for (var i = 0; i < variances.length; i++) {
+                if ((variances[i] & 7) === 1 && typeArguments[i].flags & 16384) {
+                    return true;
+                }
+            }
+            return false;
+        }
+        function isUnconstrainedTypeParameter(type) {
+            return type.flags & 262144 && !getConstraintOfTypeParameter(type);
+        }
+        function isNonDeferredTypeReference(type) {
+            return !!(ts.getObjectFlags(type) & 4) && !type.node;
+        }
+        function isTypeReferenceWithGenericArguments(type) {
+            return isNonDeferredTypeReference(type) && ts.some(getTypeArguments(type), function (t) { return isUnconstrainedTypeParameter(t) || isTypeReferenceWithGenericArguments(t); });
+        }
+        function getTypeReferenceId(type, typeParameters, depth) {
+            if (depth === void 0) { depth = 0; }
+            var result = "" + type.target.id;
+            for (var _i = 0, _a = getTypeArguments(type); _i < _a.length; _i++) {
+                var t = _a[_i];
+                if (isUnconstrainedTypeParameter(t)) {
+                    var index = typeParameters.indexOf(t);
+                    if (index < 0) {
+                        index = typeParameters.length;
+                        typeParameters.push(t);
+                    }
+                    result += "=" + index;
+                }
+                else if (depth < 4 && isTypeReferenceWithGenericArguments(t)) {
+                    result += "<" + getTypeReferenceId(t, typeParameters, depth + 1) + ">";
+                }
+                else {
+                    result += "-" + t.id;
+                }
+            }
+            return result;
+        }
+        function getRelationKey(source, target, intersectionState, relation) {
+            if (relation === identityRelation && source.id > target.id) {
+                var temp = source;
+                source = target;
+                target = temp;
+            }
+            var postFix = intersectionState ? ":" + intersectionState : "";
+            if (isTypeReferenceWithGenericArguments(source) && isTypeReferenceWithGenericArguments(target)) {
+                var typeParameters = [];
+                return getTypeReferenceId(source, typeParameters) + "," + getTypeReferenceId(target, typeParameters) + postFix;
+            }
+            return source.id + "," + target.id + postFix;
+        }
+        function forEachProperty(prop, callback) {
+            if (ts.getCheckFlags(prop) & 6) {
+                for (var _i = 0, _a = prop.containingType.types; _i < _a.length; _i++) {
+                    var t = _a[_i];
+                    var p = getPropertyOfType(t, prop.escapedName);
+                    var result = p && forEachProperty(p, callback);
+                    if (result) {
+                        return result;
+                    }
+                }
+                return undefined;
+            }
+            return callback(prop);
+        }
+        function getDeclaringClass(prop) {
+            return prop.parent && prop.parent.flags & 32 ? getDeclaredTypeOfSymbol(getParentOfSymbol(prop)) : undefined;
+        }
+        function isPropertyInClassDerivedFrom(prop, baseClass) {
+            return forEachProperty(prop, function (sp) {
+                var sourceClass = getDeclaringClass(sp);
+                return sourceClass ? hasBaseType(sourceClass, baseClass) : false;
+            });
+        }
+        function isValidOverrideOf(sourceProp, targetProp) {
+            return !forEachProperty(targetProp, function (tp) { return ts.getDeclarationModifierFlagsFromSymbol(tp) & 16 ?
+                !isPropertyInClassDerivedFrom(sourceProp, getDeclaringClass(tp)) : false; });
+        }
+        function isClassDerivedFromDeclaringClasses(checkClass, prop) {
+            return forEachProperty(prop, function (p) { return ts.getDeclarationModifierFlagsFromSymbol(p) & 16 ?
+                !hasBaseType(checkClass, getDeclaringClass(p)) : false; }) ? undefined : checkClass;
+        }
+        function isDeeplyNestedType(type, stack, depth) {
+            if (depth >= 5 && type.flags & 524288 && !isObjectOrArrayLiteralType(type)) {
+                var symbol = type.symbol;
+                if (symbol) {
+                    var count = 0;
+                    for (var i = 0; i < depth; i++) {
+                        var t = stack[i];
+                        if (t.flags & 524288 && t.symbol === symbol) {
+                            count++;
+                            if (count >= 5)
+                                return true;
+                        }
+                    }
+                }
+            }
+            if (depth >= 5 && type.flags & 8388608) {
+                var root = getRootObjectTypeFromIndexedAccessChain(type);
+                var count = 0;
+                for (var i = 0; i < depth; i++) {
+                    var t = stack[i];
+                    if (getRootObjectTypeFromIndexedAccessChain(t) === root) {
+                        count++;
+                        if (count >= 5)
+                            return true;
+                    }
+                }
+            }
+            return false;
+        }
+        function getRootObjectTypeFromIndexedAccessChain(type) {
+            var t = type;
+            while (t.flags & 8388608) {
+                t = t.objectType;
+            }
+            return t;
+        }
+        function isPropertyIdenticalTo(sourceProp, targetProp) {
+            return compareProperties(sourceProp, targetProp, compareTypesIdentical) !== 0;
+        }
+        function compareProperties(sourceProp, targetProp, compareTypes) {
+            if (sourceProp === targetProp) {
+                return -1;
+            }
+            var sourcePropAccessibility = ts.getDeclarationModifierFlagsFromSymbol(sourceProp) & 24;
+            var targetPropAccessibility = ts.getDeclarationModifierFlagsFromSymbol(targetProp) & 24;
+            if (sourcePropAccessibility !== targetPropAccessibility) {
+                return 0;
+            }
+            if (sourcePropAccessibility) {
+                if (getTargetSymbol(sourceProp) !== getTargetSymbol(targetProp)) {
+                    return 0;
+                }
+            }
+            else {
+                if ((sourceProp.flags & 16777216) !== (targetProp.flags & 16777216)) {
+                    return 0;
+                }
+            }
+            if (isReadonlySymbol(sourceProp) !== isReadonlySymbol(targetProp)) {
+                return 0;
+            }
+            return compareTypes(getTypeOfSymbol(sourceProp), getTypeOfSymbol(targetProp));
+        }
+        function isMatchingSignature(source, target, partialMatch) {
+            var sourceParameterCount = getParameterCount(source);
+            var targetParameterCount = getParameterCount(target);
+            var sourceMinArgumentCount = getMinArgumentCount(source);
+            var targetMinArgumentCount = getMinArgumentCount(target);
+            var sourceHasRestParameter = hasEffectiveRestParameter(source);
+            var targetHasRestParameter = hasEffectiveRestParameter(target);
+            if (sourceParameterCount === targetParameterCount &&
+                sourceMinArgumentCount === targetMinArgumentCount &&
+                sourceHasRestParameter === targetHasRestParameter) {
+                return true;
+            }
+            if (partialMatch && sourceMinArgumentCount <= targetMinArgumentCount) {
+                return true;
+            }
+            return false;
+        }
+        function compareSignaturesIdentical(source, target, partialMatch, ignoreThisTypes, ignoreReturnTypes, compareTypes) {
+            if (source === target) {
+                return -1;
+            }
+            if (!(isMatchingSignature(source, target, partialMatch))) {
+                return 0;
+            }
+            if (ts.length(source.typeParameters) !== ts.length(target.typeParameters)) {
+                return 0;
+            }
+            if (target.typeParameters) {
+                var mapper = createTypeMapper(source.typeParameters, target.typeParameters);
+                for (var i = 0; i < target.typeParameters.length; i++) {
+                    var s = source.typeParameters[i];
+                    var t = target.typeParameters[i];
+                    if (!(s === t || compareTypes(instantiateType(getConstraintFromTypeParameter(s), mapper) || unknownType, getConstraintFromTypeParameter(t) || unknownType) &&
+                        compareTypes(instantiateType(getDefaultFromTypeParameter(s), mapper) || unknownType, getDefaultFromTypeParameter(t) || unknownType))) {
+                        return 0;
+                    }
+                }
+                source = instantiateSignature(source, mapper, true);
+            }
+            var result = -1;
+            if (!ignoreThisTypes) {
+                var sourceThisType = getThisTypeOfSignature(source);
+                if (sourceThisType) {
+                    var targetThisType = getThisTypeOfSignature(target);
+                    if (targetThisType) {
+                        var related = compareTypes(sourceThisType, targetThisType);
+                        if (!related) {
+                            return 0;
+                        }
+                        result &= related;
+                    }
+                }
+            }
+            var targetLen = getParameterCount(target);
+            for (var i = 0; i < targetLen; i++) {
+                var s = getTypeAtPosition(source, i);
+                var t = getTypeAtPosition(target, i);
+                var related = compareTypes(t, s);
+                if (!related) {
+                    return 0;
+                }
+                result &= related;
+            }
+            if (!ignoreReturnTypes) {
+                var sourceTypePredicate = getTypePredicateOfSignature(source);
+                var targetTypePredicate = getTypePredicateOfSignature(target);
+                result &= sourceTypePredicate || targetTypePredicate ?
+                    compareTypePredicatesIdentical(sourceTypePredicate, targetTypePredicate, compareTypes) :
+                    compareTypes(getReturnTypeOfSignature(source), getReturnTypeOfSignature(target));
+            }
+            return result;
+        }
+        function compareTypePredicatesIdentical(source, target, compareTypes) {
+            return !(source && target && typePredicateKindsMatch(source, target)) ? 0 :
+                source.type === target.type ? -1 :
+                    source.type && target.type ? compareTypes(source.type, target.type) :
+                        0;
+        }
+        function literalTypesWithSameBaseType(types) {
+            var commonBaseType;
+            for (var _i = 0, types_12 = types; _i < types_12.length; _i++) {
+                var t = types_12[_i];
+                var baseType = getBaseTypeOfLiteralType(t);
+                if (!commonBaseType) {
+                    commonBaseType = baseType;
+                }
+                if (baseType === t || baseType !== commonBaseType) {
+                    return false;
+                }
+            }
+            return true;
+        }
+        function getSupertypeOrUnion(types) {
+            return literalTypesWithSameBaseType(types) ?
+                getUnionType(types) :
+                ts.reduceLeft(types, function (s, t) { return isTypeSubtypeOf(s, t) ? t : s; });
+        }
+        function getCommonSupertype(types) {
+            if (!strictNullChecks) {
+                return getSupertypeOrUnion(types);
+            }
+            var primaryTypes = ts.filter(types, function (t) { return !(t.flags & 98304); });
+            return primaryTypes.length ?
+                getNullableType(getSupertypeOrUnion(primaryTypes), getFalsyFlagsOfTypes(types) & 98304) :
+                getUnionType(types, 2);
+        }
+        function getCommonSubtype(types) {
+            return ts.reduceLeft(types, function (s, t) { return isTypeSubtypeOf(t, s) ? t : s; });
+        }
+        function isArrayType(type) {
+            return !!(ts.getObjectFlags(type) & 4) && (type.target === globalArrayType || type.target === globalReadonlyArrayType);
+        }
+        function isReadonlyArrayType(type) {
+            return !!(ts.getObjectFlags(type) & 4) && type.target === globalReadonlyArrayType;
+        }
+        function isMutableArrayOrTuple(type) {
+            return isArrayType(type) && !isReadonlyArrayType(type) || isTupleType(type) && !type.target.readonly;
+        }
+        function getElementTypeOfArrayType(type) {
+            return isArrayType(type) ? getTypeArguments(type)[0] : undefined;
+        }
+        function isArrayLikeType(type) {
+            return isArrayType(type) || !(type.flags & 98304) && isTypeAssignableTo(type, anyReadonlyArrayType);
+        }
+        function isEmptyArrayLiteralType(type) {
+            var elementType = isArrayType(type) ? getTypeArguments(type)[0] : undefined;
+            return elementType === undefinedWideningType || elementType === implicitNeverType;
+        }
+        function isTupleLikeType(type) {
+            return isTupleType(type) || !!getPropertyOfType(type, "0");
+        }
+        function isArrayOrTupleLikeType(type) {
+            return isArrayLikeType(type) || isTupleLikeType(type);
+        }
+        function getTupleElementType(type, index) {
+            var propType = getTypeOfPropertyOfType(type, "" + index);
+            if (propType) {
+                return propType;
+            }
+            if (everyType(type, isTupleType)) {
+                return mapType(type, function (t) { return getRestTypeOfTupleType(t) || undefinedType; });
+            }
+            return undefined;
+        }
+        function isNeitherUnitTypeNorNever(type) {
+            return !(type.flags & (109440 | 131072));
+        }
+        function isUnitType(type) {
+            return !!(type.flags & 109440);
+        }
+        function isLiteralType(type) {
+            return type.flags & 16 ? true :
+                type.flags & 1048576 ? type.flags & 1024 ? true : ts.every(type.types, isUnitType) :
+                    isUnitType(type);
+        }
+        function getBaseTypeOfLiteralType(type) {
+            return type.flags & 1024 ? getBaseTypeOfEnumLiteralType(type) :
+                type.flags & 128 ? stringType :
+                    type.flags & 256 ? numberType :
+                        type.flags & 2048 ? bigintType :
+                            type.flags & 512 ? booleanType :
+                                type.flags & 1048576 ? getUnionType(ts.sameMap(type.types, getBaseTypeOfLiteralType)) :
+                                    type;
+        }
+        function getWidenedLiteralType(type) {
+            return type.flags & 1024 && isFreshLiteralType(type) ? getBaseTypeOfEnumLiteralType(type) :
+                type.flags & 128 && isFreshLiteralType(type) ? stringType :
+                    type.flags & 256 && isFreshLiteralType(type) ? numberType :
+                        type.flags & 2048 && isFreshLiteralType(type) ? bigintType :
+                            type.flags & 512 && isFreshLiteralType(type) ? booleanType :
+                                type.flags & 1048576 ? getUnionType(ts.sameMap(type.types, getWidenedLiteralType)) :
+                                    type;
+        }
+        function getWidenedUniqueESSymbolType(type) {
+            return type.flags & 8192 ? esSymbolType :
+                type.flags & 1048576 ? getUnionType(ts.sameMap(type.types, getWidenedUniqueESSymbolType)) :
+                    type;
+        }
+        function getWidenedLiteralLikeTypeForContextualType(type, contextualType) {
+            if (!isLiteralOfContextualType(type, contextualType)) {
+                type = getWidenedUniqueESSymbolType(getWidenedLiteralType(type));
+            }
+            return type;
+        }
+        function getWidenedLiteralLikeTypeForContextualReturnTypeIfNeeded(type, contextualSignatureReturnType, isAsync) {
+            if (type && isUnitType(type)) {
+                var contextualType = !contextualSignatureReturnType ? undefined :
+                    isAsync ? getPromisedTypeOfPromise(contextualSignatureReturnType) :
+                        contextualSignatureReturnType;
+                type = getWidenedLiteralLikeTypeForContextualType(type, contextualType);
+            }
+            return type;
+        }
+        function getWidenedLiteralLikeTypeForContextualIterationTypeIfNeeded(type, contextualSignatureReturnType, kind, isAsyncGenerator) {
+            if (type && isUnitType(type)) {
+                var contextualType = !contextualSignatureReturnType ? undefined :
+                    getIterationTypeOfGeneratorFunctionReturnType(kind, contextualSignatureReturnType, isAsyncGenerator);
+                type = getWidenedLiteralLikeTypeForContextualType(type, contextualType);
+            }
+            return type;
+        }
+        function isTupleType(type) {
+            return !!(ts.getObjectFlags(type) & 4 && type.target.objectFlags & 8);
+        }
+        function getRestTypeOfTupleType(type) {
+            return type.target.hasRestElement ? getTypeArguments(type)[type.target.typeParameters.length - 1] : undefined;
+        }
+        function getRestArrayTypeOfTupleType(type) {
+            var restType = getRestTypeOfTupleType(type);
+            return restType && createArrayType(restType);
+        }
+        function getLengthOfTupleType(type) {
+            return getTypeReferenceArity(type) - (type.target.hasRestElement ? 1 : 0);
+        }
+        function isZeroBigInt(_a) {
+            var value = _a.value;
+            return value.base10Value === "0";
+        }
+        function getFalsyFlagsOfTypes(types) {
+            var result = 0;
+            for (var _i = 0, types_13 = types; _i < types_13.length; _i++) {
+                var t = types_13[_i];
+                result |= getFalsyFlags(t);
+            }
+            return result;
+        }
+        function getFalsyFlags(type) {
+            return type.flags & 1048576 ? getFalsyFlagsOfTypes(type.types) :
+                type.flags & 128 ? type.value === "" ? 128 : 0 :
+                    type.flags & 256 ? type.value === 0 ? 256 : 0 :
+                        type.flags & 2048 ? isZeroBigInt(type) ? 2048 : 0 :
+                            type.flags & 512 ? (type === falseType || type === regularFalseType) ? 512 : 0 :
+                                type.flags & 117724;
+        }
+        function removeDefinitelyFalsyTypes(type) {
+            return getFalsyFlags(type) & 117632 ?
+                filterType(type, function (t) { return !(getFalsyFlags(t) & 117632); }) :
+                type;
+        }
+        function extractDefinitelyFalsyTypes(type) {
+            return mapType(type, getDefinitelyFalsyPartOfType);
+        }
+        function getDefinitelyFalsyPartOfType(type) {
+            return type.flags & 4 ? emptyStringType :
+                type.flags & 8 ? zeroType :
+                    type.flags & 64 ? zeroBigIntType :
+                        type === regularFalseType ||
+                            type === falseType ||
+                            type.flags & (16384 | 32768 | 65536) ||
+                            type.flags & 128 && type.value === "" ||
+                            type.flags & 256 && type.value === 0 ||
+                            type.flags & 2048 && isZeroBigInt(type) ? type :
+                            neverType;
+        }
+        function getNullableType(type, flags) {
+            var missing = (flags & ~type.flags) & (32768 | 65536);
+            return missing === 0 ? type :
+                missing === 32768 ? getUnionType([type, undefinedType]) :
+                    missing === 65536 ? getUnionType([type, nullType]) :
+                        getUnionType([type, undefinedType, nullType]);
+        }
+        function getOptionalType(type) {
+            ts.Debug.assert(strictNullChecks);
+            return type.flags & 32768 ? type : getUnionType([type, undefinedType]);
+        }
+        function getGlobalNonNullableTypeInstantiation(type) {
+            if (!deferredGlobalNonNullableTypeAlias) {
+                deferredGlobalNonNullableTypeAlias = getGlobalSymbol("NonNullable", 524288, undefined) || unknownSymbol;
+            }
+            if (deferredGlobalNonNullableTypeAlias !== unknownSymbol) {
+                return getTypeAliasInstantiation(deferredGlobalNonNullableTypeAlias, [type]);
+            }
+            return getTypeWithFacts(type, 2097152);
+        }
+        function getNonNullableType(type) {
+            return strictNullChecks ? getGlobalNonNullableTypeInstantiation(type) : type;
+        }
+        function addOptionalTypeMarker(type) {
+            return strictNullChecks ? getUnionType([type, optionalType]) : type;
+        }
+        function isNotOptionalTypeMarker(type) {
+            return type !== optionalType;
+        }
+        function removeOptionalTypeMarker(type) {
+            return strictNullChecks ? filterType(type, isNotOptionalTypeMarker) : type;
+        }
+        function propagateOptionalTypeMarker(type, node, wasOptional) {
+            return wasOptional ? ts.isOutermostOptionalChain(node) ? getOptionalType(type) : addOptionalTypeMarker(type) : type;
+        }
+        function getOptionalExpressionType(exprType, expression) {
+            return ts.isExpressionOfOptionalChainRoot(expression) ? getNonNullableType(exprType) :
+                ts.isOptionalChain(expression) ? removeOptionalTypeMarker(exprType) :
+                    exprType;
+        }
+        function isCoercibleUnderDoubleEquals(source, target) {
+            return ((source.flags & (8 | 4 | 512)) !== 0)
+                && ((target.flags & (8 | 4 | 16)) !== 0);
+        }
+        function isObjectTypeWithInferableIndex(type) {
+            return type.flags & 2097152 ? ts.every(type.types, isObjectTypeWithInferableIndex) :
+                !!(type.symbol && (type.symbol.flags & (4096 | 2048 | 384 | 512)) !== 0 &&
+                    !typeHasCallOrConstructSignatures(type)) || !!(ts.getObjectFlags(type) & 2048 && isObjectTypeWithInferableIndex(type.source));
+        }
+        function createSymbolWithType(source, type) {
+            var symbol = createSymbol(source.flags, source.escapedName, ts.getCheckFlags(source) & 8);
+            symbol.declarations = source.declarations;
+            symbol.parent = source.parent;
+            symbol.type = type;
+            symbol.target = source;
+            if (source.valueDeclaration) {
+                symbol.valueDeclaration = source.valueDeclaration;
+            }
+            var nameType = getSymbolLinks(source).nameType;
+            if (nameType) {
+                symbol.nameType = nameType;
+            }
+            return symbol;
+        }
+        function transformTypeOfMembers(type, f) {
+            var members = ts.createSymbolTable();
+            for (var _i = 0, _a = getPropertiesOfObjectType(type); _i < _a.length; _i++) {
+                var property = _a[_i];
+                var original = getTypeOfSymbol(property);
+                var updated = f(original);
+                members.set(property.escapedName, updated === original ? property : createSymbolWithType(property, updated));
+            }
+            return members;
+        }
+        function getRegularTypeOfObjectLiteral(type) {
+            if (!(isObjectLiteralType(type) && ts.getObjectFlags(type) & 32768)) {
+                return type;
+            }
+            var regularType = type.regularType;
+            if (regularType) {
+                return regularType;
+            }
+            var resolved = type;
+            var members = transformTypeOfMembers(type, getRegularTypeOfObjectLiteral);
+            var regularNew = createAnonymousType(resolved.symbol, members, resolved.callSignatures, resolved.constructSignatures, resolved.stringIndexInfo, resolved.numberIndexInfo);
+            regularNew.flags = resolved.flags;
+            regularNew.objectFlags |= resolved.objectFlags & ~32768;
+            type.regularType = regularNew;
+            return regularNew;
+        }
+        function createWideningContext(parent, propertyName, siblings) {
+            return { parent: parent, propertyName: propertyName, siblings: siblings, resolvedProperties: undefined };
+        }
+        function getSiblingsOfContext(context) {
+            if (!context.siblings) {
+                var siblings_1 = [];
+                for (var _i = 0, _a = getSiblingsOfContext(context.parent); _i < _a.length; _i++) {
+                    var type = _a[_i];
+                    if (isObjectLiteralType(type)) {
+                        var prop = getPropertyOfObjectType(type, context.propertyName);
+                        if (prop) {
+                            forEachType(getTypeOfSymbol(prop), function (t) {
+                                siblings_1.push(t);
+                            });
+                        }
+                    }
+                }
+                context.siblings = siblings_1;
+            }
+            return context.siblings;
+        }
+        function getPropertiesOfContext(context) {
+            if (!context.resolvedProperties) {
+                var names = ts.createMap();
+                for (var _i = 0, _a = getSiblingsOfContext(context); _i < _a.length; _i++) {
+                    var t = _a[_i];
+                    if (isObjectLiteralType(t) && !(ts.getObjectFlags(t) & 1024)) {
+                        for (var _b = 0, _c = getPropertiesOfType(t); _b < _c.length; _b++) {
+                            var prop = _c[_b];
+                            names.set(prop.escapedName, prop);
+                        }
+                    }
+                }
+                context.resolvedProperties = ts.arrayFrom(names.values());
+            }
+            return context.resolvedProperties;
+        }
+        function getWidenedProperty(prop, context) {
+            if (!(prop.flags & 4)) {
+                return prop;
+            }
+            var original = getTypeOfSymbol(prop);
+            var propContext = context && createWideningContext(context, prop.escapedName, undefined);
+            var widened = getWidenedTypeWithContext(original, propContext);
+            return widened === original ? prop : createSymbolWithType(prop, widened);
+        }
+        function getUndefinedProperty(prop) {
+            var cached = undefinedProperties.get(prop.escapedName);
+            if (cached) {
+                return cached;
+            }
+            var result = createSymbolWithType(prop, undefinedType);
+            result.flags |= 16777216;
+            undefinedProperties.set(prop.escapedName, result);
+            return result;
+        }
+        function getWidenedTypeOfObjectLiteral(type, context) {
+            var members = ts.createSymbolTable();
+            for (var _i = 0, _a = getPropertiesOfObjectType(type); _i < _a.length; _i++) {
+                var prop = _a[_i];
+                members.set(prop.escapedName, getWidenedProperty(prop, context));
+            }
+            if (context) {
+                for (var _b = 0, _c = getPropertiesOfContext(context); _b < _c.length; _b++) {
+                    var prop = _c[_b];
+                    if (!members.has(prop.escapedName)) {
+                        members.set(prop.escapedName, getUndefinedProperty(prop));
+                    }
+                }
+            }
+            var stringIndexInfo = getIndexInfoOfType(type, 0);
+            var numberIndexInfo = getIndexInfoOfType(type, 1);
+            var result = createAnonymousType(type.symbol, members, ts.emptyArray, ts.emptyArray, stringIndexInfo && createIndexInfo(getWidenedType(stringIndexInfo.type), stringIndexInfo.isReadonly), numberIndexInfo && createIndexInfo(getWidenedType(numberIndexInfo.type), numberIndexInfo.isReadonly));
+            result.objectFlags |= (ts.getObjectFlags(type) & (16384 | 2097152));
+            return result;
+        }
+        function getWidenedType(type) {
+            return getWidenedTypeWithContext(type, undefined);
+        }
+        function getWidenedTypeWithContext(type, context) {
+            if (ts.getObjectFlags(type) & 1572864) {
+                if (context === undefined && type.widened) {
+                    return type.widened;
+                }
+                var result = void 0;
+                if (type.flags & (1 | 98304)) {
+                    result = anyType;
+                }
+                else if (isObjectLiteralType(type)) {
+                    result = getWidenedTypeOfObjectLiteral(type, context);
+                }
+                else if (type.flags & 1048576) {
+                    var unionContext_1 = context || createWideningContext(undefined, undefined, type.types);
+                    var widenedTypes = ts.sameMap(type.types, function (t) { return t.flags & 98304 ? t : getWidenedTypeWithContext(t, unionContext_1); });
+                    result = getUnionType(widenedTypes, ts.some(widenedTypes, isEmptyObjectType) ? 2 : 1);
+                }
+                else if (type.flags & 2097152) {
+                    result = getIntersectionType(ts.sameMap(type.types, getWidenedType));
+                }
+                else if (isArrayType(type) || isTupleType(type)) {
+                    result = createTypeReference(type.target, ts.sameMap(getTypeArguments(type), getWidenedType));
+                }
+                if (result && context === undefined) {
+                    type.widened = result;
+                }
+                return result || type;
+            }
+            return type;
+        }
+        function reportWideningErrorsInType(type) {
+            var errorReported = false;
+            if (ts.getObjectFlags(type) & 524288) {
+                if (type.flags & 1048576) {
+                    if (ts.some(type.types, isEmptyObjectType)) {
+                        errorReported = true;
+                    }
+                    else {
+                        for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
+                            var t = _a[_i];
+                            if (reportWideningErrorsInType(t)) {
+                                errorReported = true;
+                            }
+                        }
+                    }
+                }
+                if (isArrayType(type) || isTupleType(type)) {
+                    for (var _b = 0, _c = getTypeArguments(type); _b < _c.length; _b++) {
+                        var t = _c[_b];
+                        if (reportWideningErrorsInType(t)) {
+                            errorReported = true;
+                        }
+                    }
+                }
+                if (isObjectLiteralType(type)) {
+                    for (var _d = 0, _e = getPropertiesOfObjectType(type); _d < _e.length; _d++) {
+                        var p = _e[_d];
+                        var t = getTypeOfSymbol(p);
+                        if (ts.getObjectFlags(t) & 524288) {
+                            if (!reportWideningErrorsInType(t)) {
+                                error(p.valueDeclaration, ts.Diagnostics.Object_literal_s_property_0_implicitly_has_an_1_type, symbolToString(p), typeToString(getWidenedType(t)));
+                            }
+                            errorReported = true;
+                        }
+                    }
+                }
+            }
+            return errorReported;
+        }
+        function reportImplicitAny(declaration, type, wideningKind) {
+            var typeAsString = typeToString(getWidenedType(type));
+            if (ts.isInJSFile(declaration) && !ts.isCheckJsEnabledForFile(ts.getSourceFileOfNode(declaration), compilerOptions)) {
+                return;
+            }
+            var diagnostic;
+            switch (declaration.kind) {
+                case 209:
+                case 159:
+                case 158:
+                    diagnostic = noImplicitAny ? ts.Diagnostics.Member_0_implicitly_has_an_1_type : ts.Diagnostics.Member_0_implicitly_has_an_1_type_but_a_better_type_may_be_inferred_from_usage;
+                    break;
+                case 156:
+                    var param = declaration;
+                    if (ts.isIdentifier(param.name) &&
+                        (ts.isCallSignatureDeclaration(param.parent) || ts.isMethodSignature(param.parent) || ts.isFunctionTypeNode(param.parent)) &&
+                        param.parent.parameters.indexOf(param) > -1 &&
+                        (resolveName(param, param.name.escapedText, 788968, undefined, param.name.escapedText, true) ||
+                            param.name.originalKeywordKind && ts.isTypeNodeKind(param.name.originalKeywordKind))) {
+                        var newName = "arg" + param.parent.parameters.indexOf(param);
+                        errorOrSuggestion(noImplicitAny, declaration, ts.Diagnostics.Parameter_has_a_name_but_no_type_Did_you_mean_0_Colon_1, newName, ts.declarationNameToString(param.name));
+                        return;
+                    }
+                    diagnostic = declaration.dotDotDotToken ?
+                        noImplicitAny ? ts.Diagnostics.Rest_parameter_0_implicitly_has_an_any_type : ts.Diagnostics.Rest_parameter_0_implicitly_has_an_any_type_but_a_better_type_may_be_inferred_from_usage :
+                        noImplicitAny ? ts.Diagnostics.Parameter_0_implicitly_has_an_1_type : ts.Diagnostics.Parameter_0_implicitly_has_an_1_type_but_a_better_type_may_be_inferred_from_usage;
+                    break;
+                case 191:
+                    diagnostic = ts.Diagnostics.Binding_element_0_implicitly_has_an_1_type;
+                    if (!noImplicitAny) {
+                        return;
+                    }
+                    break;
+                case 300:
+                    error(declaration, ts.Diagnostics.Function_type_which_lacks_return_type_annotation_implicitly_has_an_0_return_type, typeAsString);
+                    return;
+                case 244:
+                case 161:
+                case 160:
+                case 163:
+                case 164:
+                case 201:
+                case 202:
+                    if (noImplicitAny && !declaration.name) {
+                        if (wideningKind === 3) {
+                            error(declaration, ts.Diagnostics.Generator_implicitly_has_yield_type_0_because_it_does_not_yield_any_values_Consider_supplying_a_return_type_annotation, typeAsString);
+                        }
+                        else {
+                            error(declaration, ts.Diagnostics.Function_expression_which_lacks_return_type_annotation_implicitly_has_an_0_return_type, typeAsString);
+                        }
+                        return;
+                    }
+                    diagnostic = !noImplicitAny ? ts.Diagnostics._0_implicitly_has_an_1_return_type_but_a_better_type_may_be_inferred_from_usage :
+                        wideningKind === 3 ? ts.Diagnostics._0_which_lacks_return_type_annotation_implicitly_has_an_1_yield_type :
+                            ts.Diagnostics._0_which_lacks_return_type_annotation_implicitly_has_an_1_return_type;
+                    break;
+                case 186:
+                    if (noImplicitAny) {
+                        error(declaration, ts.Diagnostics.Mapped_object_type_implicitly_has_an_any_template_type);
+                    }
+                    return;
+                default:
+                    diagnostic = noImplicitAny ? ts.Diagnostics.Variable_0_implicitly_has_an_1_type : ts.Diagnostics.Variable_0_implicitly_has_an_1_type_but_a_better_type_may_be_inferred_from_usage;
+            }
+            errorOrSuggestion(noImplicitAny, declaration, diagnostic, ts.declarationNameToString(ts.getNameOfDeclaration(declaration)), typeAsString);
+        }
+        function reportErrorsFromWidening(declaration, type, wideningKind) {
+            if (produceDiagnostics && noImplicitAny && ts.getObjectFlags(type) & 524288 && (!wideningKind || !getContextualSignatureForFunctionLikeDeclaration(declaration))) {
+                if (!reportWideningErrorsInType(type)) {
+                    reportImplicitAny(declaration, type, wideningKind);
+                }
+            }
+        }
+        function applyToParameterTypes(source, target, callback) {
+            var sourceCount = getParameterCount(source);
+            var targetCount = getParameterCount(target);
+            var sourceRestType = getEffectiveRestType(source);
+            var targetRestType = getEffectiveRestType(target);
+            var targetNonRestCount = targetRestType ? targetCount - 1 : targetCount;
+            var paramCount = sourceRestType ? targetNonRestCount : Math.min(sourceCount, targetNonRestCount);
+            var sourceThisType = getThisTypeOfSignature(source);
+            if (sourceThisType) {
+                var targetThisType = getThisTypeOfSignature(target);
+                if (targetThisType) {
+                    callback(sourceThisType, targetThisType);
+                }
+            }
+            for (var i = 0; i < paramCount; i++) {
+                callback(getTypeAtPosition(source, i), getTypeAtPosition(target, i));
+            }
+            if (targetRestType) {
+                callback(getRestTypeAtPosition(source, paramCount), targetRestType);
+            }
+        }
+        function applyToReturnTypes(source, target, callback) {
+            var sourceTypePredicate = getTypePredicateOfSignature(source);
+            var targetTypePredicate = getTypePredicateOfSignature(target);
+            if (sourceTypePredicate && targetTypePredicate && typePredicateKindsMatch(sourceTypePredicate, targetTypePredicate) && sourceTypePredicate.type && targetTypePredicate.type) {
+                callback(sourceTypePredicate.type, targetTypePredicate.type);
+            }
+            else {
+                callback(getReturnTypeOfSignature(source), getReturnTypeOfSignature(target));
+            }
+        }
+        function createInferenceContext(typeParameters, signature, flags, compareTypes) {
+            return createInferenceContextWorker(typeParameters.map(createInferenceInfo), signature, flags, compareTypes || compareTypesAssignable);
+        }
+        function cloneInferenceContext(context, extraFlags) {
+            if (extraFlags === void 0) { extraFlags = 0; }
+            return context && createInferenceContextWorker(ts.map(context.inferences, cloneInferenceInfo), context.signature, context.flags | extraFlags, context.compareTypes);
+        }
+        function createInferenceContextWorker(inferences, signature, flags, compareTypes) {
+            var context = {
+                inferences: inferences,
+                signature: signature,
+                flags: flags,
+                compareTypes: compareTypes,
+                mapper: makeFunctionTypeMapper(function (t) { return mapToInferredType(context, t, true); }),
+                nonFixingMapper: makeFunctionTypeMapper(function (t) { return mapToInferredType(context, t, false); }),
+            };
+            return context;
+        }
+        function mapToInferredType(context, t, fix) {
+            var inferences = context.inferences;
+            for (var i = 0; i < inferences.length; i++) {
+                var inference = inferences[i];
+                if (t === inference.typeParameter) {
+                    if (fix && !inference.isFixed) {
+                        clearCachedInferences(inferences);
+                        inference.isFixed = true;
+                    }
+                    return getInferredType(context, i);
+                }
+            }
+            return t;
+        }
+        function clearCachedInferences(inferences) {
+            for (var _i = 0, inferences_1 = inferences; _i < inferences_1.length; _i++) {
+                var inference = inferences_1[_i];
+                if (!inference.isFixed) {
+                    inference.inferredType = undefined;
+                }
+            }
+        }
+        function createInferenceInfo(typeParameter) {
+            return {
+                typeParameter: typeParameter,
+                candidates: undefined,
+                contraCandidates: undefined,
+                inferredType: undefined,
+                priority: undefined,
+                topLevel: true,
+                isFixed: false
+            };
+        }
+        function cloneInferenceInfo(inference) {
+            return {
+                typeParameter: inference.typeParameter,
+                candidates: inference.candidates && inference.candidates.slice(),
+                contraCandidates: inference.contraCandidates && inference.contraCandidates.slice(),
+                inferredType: inference.inferredType,
+                priority: inference.priority,
+                topLevel: inference.topLevel,
+                isFixed: inference.isFixed
+            };
+        }
+        function cloneInferredPartOfContext(context) {
+            var inferences = ts.filter(context.inferences, hasInferenceCandidates);
+            return inferences.length ?
+                createInferenceContextWorker(ts.map(inferences, cloneInferenceInfo), context.signature, context.flags, context.compareTypes) :
+                undefined;
+        }
+        function getMapperFromContext(context) {
+            return context && context.mapper;
+        }
+        function couldContainTypeVariables(type) {
+            var objectFlags = ts.getObjectFlags(type);
+            if (objectFlags & 67108864) {
+                return !!(objectFlags & 134217728);
+            }
+            var result = !!(type.flags & 63176704 ||
+                objectFlags & 4 && (type.node || ts.forEach(getTypeArguments(type), couldContainTypeVariables)) ||
+                objectFlags & 16 && type.symbol && type.symbol.flags & (16 | 8192 | 32 | 2048 | 4096) && type.symbol.declarations ||
+                objectFlags & (32 | 131072) ||
+                type.flags & 3145728 && !(type.flags & 1024) && ts.some(type.types, couldContainTypeVariables));
+            if (type.flags & 3899393) {
+                type.objectFlags |= 67108864 | (result ? 134217728 : 0);
+            }
+            return result;
+        }
+        function isTypeParameterAtTopLevel(type, typeParameter) {
+            return !!(type === typeParameter ||
+                type.flags & 3145728 && ts.some(type.types, function (t) { return isTypeParameterAtTopLevel(t, typeParameter); }) ||
+                type.flags & 16777216 && (isTypeParameterAtTopLevel(getTrueTypeFromConditionalType(type), typeParameter) ||
+                    isTypeParameterAtTopLevel(getFalseTypeFromConditionalType(type), typeParameter)));
+        }
+        function createEmptyObjectTypeFromStringLiteral(type) {
+            var members = ts.createSymbolTable();
+            forEachType(type, function (t) {
+                if (!(t.flags & 128)) {
+                    return;
+                }
+                var name = ts.escapeLeadingUnderscores(t.value);
+                var literalProp = createSymbol(4, name);
+                literalProp.type = anyType;
+                if (t.symbol) {
+                    literalProp.declarations = t.symbol.declarations;
+                    literalProp.valueDeclaration = t.symbol.valueDeclaration;
+                }
+                members.set(name, literalProp);
+            });
+            var indexInfo = type.flags & 4 ? createIndexInfo(emptyObjectType, false) : undefined;
+            return createAnonymousType(undefined, members, ts.emptyArray, ts.emptyArray, indexInfo, undefined);
+        }
+        function inferTypeForHomomorphicMappedType(source, target, constraint) {
+            var key = source.id + "," + target.id + "," + constraint.id;
+            if (reverseMappedCache.has(key)) {
+                return reverseMappedCache.get(key);
+            }
+            reverseMappedCache.set(key, undefined);
+            var type = createReverseMappedType(source, target, constraint);
+            reverseMappedCache.set(key, type);
+            return type;
+        }
+        function isPartiallyInferableType(type) {
+            return !(ts.getObjectFlags(type) & 2097152) ||
+                isObjectLiteralType(type) && ts.some(getPropertiesOfType(type), function (prop) { return isPartiallyInferableType(getTypeOfSymbol(prop)); });
+        }
+        function createReverseMappedType(source, target, constraint) {
+            if (!(getIndexInfoOfType(source, 0) || getPropertiesOfType(source).length !== 0 && isPartiallyInferableType(source))) {
+                return undefined;
+            }
+            if (isArrayType(source)) {
+                return createArrayType(inferReverseMappedType(getTypeArguments(source)[0], target, constraint), isReadonlyArrayType(source));
+            }
+            if (isTupleType(source)) {
+                var elementTypes = ts.map(getTypeArguments(source), function (t) { return inferReverseMappedType(t, target, constraint); });
+                var minLength = getMappedTypeModifiers(target) & 4 ?
+                    getTypeReferenceArity(source) - (source.target.hasRestElement ? 1 : 0) : source.target.minLength;
+                return createTupleType(elementTypes, minLength, source.target.hasRestElement, source.target.readonly, source.target.associatedNames);
+            }
+            var reversed = createObjectType(2048 | 16, undefined);
+            reversed.source = source;
+            reversed.mappedType = target;
+            reversed.constraintType = constraint;
+            return reversed;
+        }
+        function getTypeOfReverseMappedSymbol(symbol) {
+            return inferReverseMappedType(symbol.propertyType, symbol.mappedType, symbol.constraintType);
+        }
+        function inferReverseMappedType(sourceType, target, constraint) {
+            var typeParameter = getIndexedAccessType(constraint.type, getTypeParameterFromMappedType(target));
+            var templateType = getTemplateTypeFromMappedType(target);
+            var inference = createInferenceInfo(typeParameter);
+            inferTypes([inference], sourceType, templateType);
+            return getTypeFromInference(inference) || unknownType;
+        }
+        function getUnmatchedProperties(source, target, requireOptionalProperties, matchDiscriminantProperties) {
+            var properties, _i, properties_2, targetProp, sourceProp, targetType, sourceType;
+            return __generator(this, function (_a) {
+                switch (_a.label) {
+                    case 0:
+                        properties = getPropertiesOfType(target);
+                        _i = 0, properties_2 = properties;
+                        _a.label = 1;
+                    case 1:
+                        if (!(_i < properties_2.length)) return [3, 6];
+                        targetProp = properties_2[_i];
+                        if (isStaticPrivateIdentifierProperty(targetProp)) {
+                            return [3, 5];
+                        }
+                        if (!(requireOptionalProperties || !(targetProp.flags & 16777216 || ts.getCheckFlags(targetProp) & 48))) return [3, 5];
+                        sourceProp = getPropertyOfType(source, targetProp.escapedName);
+                        if (!!sourceProp) return [3, 3];
+                        return [4, targetProp];
+                    case 2:
+                        _a.sent();
+                        return [3, 5];
+                    case 3:
+                        if (!matchDiscriminantProperties) return [3, 5];
+                        targetType = getTypeOfSymbol(targetProp);
+                        if (!(targetType.flags & 109440)) return [3, 5];
+                        sourceType = getTypeOfSymbol(sourceProp);
+                        if (!!(sourceType.flags & 1 || getRegularTypeOfLiteralType(sourceType) === getRegularTypeOfLiteralType(targetType))) return [3, 5];
+                        return [4, targetProp];
+                    case 4:
+                        _a.sent();
+                        _a.label = 5;
+                    case 5:
+                        _i++;
+                        return [3, 1];
+                    case 6: return [2];
+                }
+            });
+        }
+        function getUnmatchedProperty(source, target, requireOptionalProperties, matchDiscriminantProperties) {
+            var result = getUnmatchedProperties(source, target, requireOptionalProperties, matchDiscriminantProperties).next();
+            if (!result.done)
+                return result.value;
+        }
+        function tupleTypesDefinitelyUnrelated(source, target) {
+            return target.target.minLength > source.target.minLength ||
+                !getRestTypeOfTupleType(target) && (!!getRestTypeOfTupleType(source) || getLengthOfTupleType(target) < getLengthOfTupleType(source));
+        }
+        function typesDefinitelyUnrelated(source, target) {
+            return isTupleType(source) && isTupleType(target) && tupleTypesDefinitelyUnrelated(source, target) ||
+                !!getUnmatchedProperty(source, target, false, true) &&
+                    !!getUnmatchedProperty(target, source, false, true);
+        }
+        function getTypeFromInference(inference) {
+            return inference.candidates ? getUnionType(inference.candidates, 2) :
+                inference.contraCandidates ? getIntersectionType(inference.contraCandidates) :
+                    undefined;
+        }
+        function hasSkipDirectInferenceFlag(node) {
+            return !!getNodeLinks(node).skipDirectInference;
+        }
+        function isFromInferenceBlockedSource(type) {
+            return !!(type.symbol && ts.some(type.symbol.declarations, hasSkipDirectInferenceFlag));
+        }
+        function inferTypes(inferences, originalSource, originalTarget, priority, contravariant) {
+            if (priority === void 0) { priority = 0; }
+            if (contravariant === void 0) { contravariant = false; }
+            var symbolOrTypeStack;
+            var visited;
+            var bivariant = false;
+            var propagationType;
+            var inferencePriority = 512;
+            var allowComplexConstraintInference = true;
+            inferFromTypes(originalSource, originalTarget);
+            function inferFromTypes(source, target) {
+                if (!couldContainTypeVariables(target)) {
+                    return;
+                }
+                if (source === wildcardType) {
+                    var savePropagationType = propagationType;
+                    propagationType = source;
+                    inferFromTypes(target, target);
+                    propagationType = savePropagationType;
+                    return;
+                }
+                if (source.aliasSymbol && source.aliasTypeArguments && source.aliasSymbol === target.aliasSymbol) {
+                    inferFromTypeArguments(source.aliasTypeArguments, target.aliasTypeArguments, getAliasVariances(source.aliasSymbol));
+                    return;
+                }
+                if (source === target && source.flags & 3145728) {
+                    for (var _i = 0, _a = source.types; _i < _a.length; _i++) {
+                        var t = _a[_i];
+                        inferFromTypes(t, t);
+                    }
+                    return;
+                }
+                if (target.flags & 1048576) {
+                    var _b = inferFromMatchingTypes(source.flags & 1048576 ? source.types : [source], target.types, isTypeOrBaseIdenticalTo), tempSources = _b[0], tempTargets = _b[1];
+                    var _c = inferFromMatchingTypes(tempSources, tempTargets, isTypeCloselyMatchedBy), sources = _c[0], targets = _c[1];
+                    if (targets.length === 0) {
+                        return;
+                    }
+                    target = getUnionType(targets);
+                    if (sources.length === 0) {
+                        inferWithPriority(source, target, 1);
+                        return;
+                    }
+                    source = getUnionType(sources);
+                }
+                else if (target.flags & 2097152 && ts.some(target.types, function (t) { return !!getInferenceInfoForType(t) || (isGenericMappedType(t) && !!getInferenceInfoForType(getHomomorphicTypeVariable(t) || neverType)); })) {
+                    if (!(source.flags & 1048576)) {
+                        var _d = inferFromMatchingTypes(source.flags & 2097152 ? source.types : [source], target.types, isTypeIdenticalTo), sources = _d[0], targets = _d[1];
+                        if (sources.length === 0 || targets.length === 0) {
+                            return;
+                        }
+                        source = getIntersectionType(sources);
+                        target = getIntersectionType(targets);
+                    }
+                }
+                else if (target.flags & (8388608 | 33554432)) {
+                    target = getActualTypeVariable(target);
+                }
+                if (target.flags & 8650752) {
+                    if (ts.getObjectFlags(source) & 2097152 || source === nonInferrableAnyType || source === silentNeverType ||
+                        (priority & 32 && (source === autoType || source === autoArrayType)) || isFromInferenceBlockedSource(source)) {
+                        return;
+                    }
+                    var inference = getInferenceInfoForType(target);
+                    if (inference) {
+                        if (!inference.isFixed) {
+                            if (inference.priority === undefined || priority < inference.priority) {
+                                inference.candidates = undefined;
+                                inference.contraCandidates = undefined;
+                                inference.topLevel = true;
+                                inference.priority = priority;
+                            }
+                            if (priority === inference.priority) {
+                                var candidate = propagationType || source;
+                                if (contravariant && !bivariant) {
+                                    if (!ts.contains(inference.contraCandidates, candidate)) {
+                                        inference.contraCandidates = ts.append(inference.contraCandidates, candidate);
+                                        clearCachedInferences(inferences);
+                                    }
+                                }
+                                else if (!ts.contains(inference.candidates, candidate)) {
+                                    inference.candidates = ts.append(inference.candidates, candidate);
+                                    clearCachedInferences(inferences);
+                                }
+                            }
+                            if (!(priority & 32) && target.flags & 262144 && inference.topLevel && !isTypeParameterAtTopLevel(originalTarget, target)) {
+                                inference.topLevel = false;
+                                clearCachedInferences(inferences);
+                            }
+                        }
+                        inferencePriority = Math.min(inferencePriority, priority);
+                        return;
+                    }
+                    else {
+                        var simplified = getSimplifiedType(target, false);
+                        if (simplified !== target) {
+                            invokeOnce(source, simplified, inferFromTypes);
+                        }
+                        else if (target.flags & 8388608) {
+                            var indexType = getSimplifiedType(target.indexType, false);
+                            if (indexType.flags & 63176704) {
+                                var simplified_1 = distributeIndexOverObjectType(getSimplifiedType(target.objectType, false), indexType, false);
+                                if (simplified_1 && simplified_1 !== target) {
+                                    invokeOnce(source, simplified_1, inferFromTypes);
+                                }
+                            }
+                        }
+                    }
+                }
+                if (ts.getObjectFlags(source) & 4 && ts.getObjectFlags(target) & 4 && (source.target === target.target || isArrayType(source) && isArrayType(target)) &&
+                    !(source.node && target.node)) {
+                    inferFromTypeArguments(getTypeArguments(source), getTypeArguments(target), getVariances(source.target));
+                }
+                else if (source.flags & 4194304 && target.flags & 4194304) {
+                    contravariant = !contravariant;
+                    inferFromTypes(source.type, target.type);
+                    contravariant = !contravariant;
+                }
+                else if ((isLiteralType(source) || source.flags & 4) && target.flags & 4194304) {
+                    var empty = createEmptyObjectTypeFromStringLiteral(source);
+                    contravariant = !contravariant;
+                    inferWithPriority(empty, target.type, 64);
+                    contravariant = !contravariant;
+                }
+                else if (source.flags & 8388608 && target.flags & 8388608) {
+                    inferFromTypes(source.objectType, target.objectType);
+                    inferFromTypes(source.indexType, target.indexType);
+                }
+                else if (source.flags & 16777216 && target.flags & 16777216) {
+                    inferFromTypes(source.checkType, target.checkType);
+                    inferFromTypes(source.extendsType, target.extendsType);
+                    inferFromTypes(getTrueTypeFromConditionalType(source), getTrueTypeFromConditionalType(target));
+                    inferFromTypes(getFalseTypeFromConditionalType(source), getFalseTypeFromConditionalType(target));
+                }
+                else if (target.flags & 16777216) {
+                    var savePriority = priority;
+                    priority |= contravariant ? 16 : 0;
+                    var targetTypes = [getTrueTypeFromConditionalType(target), getFalseTypeFromConditionalType(target)];
+                    inferToMultipleTypes(source, targetTypes, target.flags);
+                    priority = savePriority;
+                }
+                else if (target.flags & 3145728) {
+                    inferToMultipleTypes(source, target.types, target.flags);
+                }
+                else if (source.flags & 1048576) {
+                    var sourceTypes = source.types;
+                    for (var _e = 0, sourceTypes_2 = sourceTypes; _e < sourceTypes_2.length; _e++) {
+                        var sourceType = sourceTypes_2[_e];
+                        inferFromTypes(sourceType, target);
+                    }
+                }
+                else {
+                    source = getReducedType(source);
+                    if (!(priority & 128 && source.flags & (2097152 | 63176704))) {
+                        var apparentSource = getApparentType(source);
+                        if (apparentSource !== source && allowComplexConstraintInference && !(apparentSource.flags & (524288 | 2097152))) {
+                            allowComplexConstraintInference = false;
+                            return inferFromTypes(apparentSource, target);
+                        }
+                        source = apparentSource;
+                    }
+                    if (source.flags & (524288 | 2097152)) {
+                        invokeOnce(source, target, inferFromObjectTypes);
+                    }
+                }
+                if (source.flags & 25165824) {
+                    var simplified = getSimplifiedType(source, contravariant);
+                    if (simplified !== source) {
+                        inferFromTypes(simplified, target);
+                    }
+                }
+            }
+            function inferWithPriority(source, target, newPriority) {
+                var savePriority = priority;
+                priority |= newPriority;
+                inferFromTypes(source, target);
+                priority = savePriority;
+            }
+            function invokeOnce(source, target, action) {
+                var key = source.id + "," + target.id;
+                var status = visited && visited.get(key);
+                if (status !== undefined) {
+                    inferencePriority = Math.min(inferencePriority, status);
+                    return;
+                }
+                (visited || (visited = ts.createMap())).set(key, -1);
+                var saveInferencePriority = inferencePriority;
+                inferencePriority = 512;
+                action(source, target);
+                visited.set(key, inferencePriority);
+                inferencePriority = Math.min(inferencePriority, saveInferencePriority);
+            }
+            function inferFromMatchingTypes(sources, targets, matches) {
+                var matchedSources;
+                var matchedTargets;
+                for (var _i = 0, targets_1 = targets; _i < targets_1.length; _i++) {
+                    var t = targets_1[_i];
+                    for (var _a = 0, sources_1 = sources; _a < sources_1.length; _a++) {
+                        var s = sources_1[_a];
+                        if (matches(s, t)) {
+                            inferFromTypes(s, t);
+                            matchedSources = ts.appendIfUnique(matchedSources, s);
+                            matchedTargets = ts.appendIfUnique(matchedTargets, t);
+                        }
+                    }
+                }
+                return [
+                    matchedSources ? ts.filter(sources, function (t) { return !ts.contains(matchedSources, t); }) : sources,
+                    matchedTargets ? ts.filter(targets, function (t) { return !ts.contains(matchedTargets, t); }) : targets,
+                ];
+            }
+            function inferFromTypeArguments(sourceTypes, targetTypes, variances) {
+                var count = sourceTypes.length < targetTypes.length ? sourceTypes.length : targetTypes.length;
+                for (var i = 0; i < count; i++) {
+                    if (i < variances.length && (variances[i] & 7) === 2) {
+                        inferFromContravariantTypes(sourceTypes[i], targetTypes[i]);
+                    }
+                    else {
+                        inferFromTypes(sourceTypes[i], targetTypes[i]);
+                    }
+                }
+            }
+            function inferFromContravariantTypes(source, target) {
+                if (strictFunctionTypes || priority & 256) {
+                    contravariant = !contravariant;
+                    inferFromTypes(source, target);
+                    contravariant = !contravariant;
+                }
+                else {
+                    inferFromTypes(source, target);
+                }
+            }
+            function getInferenceInfoForType(type) {
+                if (type.flags & 8650752) {
+                    for (var _i = 0, inferences_2 = inferences; _i < inferences_2.length; _i++) {
+                        var inference = inferences_2[_i];
+                        if (type === inference.typeParameter) {
+                            return inference;
+                        }
+                    }
+                }
+                return undefined;
+            }
+            function getSingleTypeVariableFromIntersectionTypes(types) {
+                var typeVariable;
+                for (var _i = 0, types_14 = types; _i < types_14.length; _i++) {
+                    var type = types_14[_i];
+                    var t = type.flags & 2097152 && ts.find(type.types, function (t) { return !!getInferenceInfoForType(t); });
+                    if (!t || typeVariable && t !== typeVariable) {
+                        return undefined;
+                    }
+                    typeVariable = t;
+                }
+                return typeVariable;
+            }
+            function inferToMultipleTypes(source, targets, targetFlags) {
+                var typeVariableCount = 0;
+                if (targetFlags & 1048576) {
+                    var nakedTypeVariable = void 0;
+                    var sources = source.flags & 1048576 ? source.types : [source];
+                    var matched_1 = new Array(sources.length);
+                    var inferenceCircularity = false;
+                    for (var _i = 0, targets_2 = targets; _i < targets_2.length; _i++) {
+                        var t = targets_2[_i];
+                        if (getInferenceInfoForType(t)) {
+                            nakedTypeVariable = t;
+                            typeVariableCount++;
+                        }
+                        else {
+                            for (var i = 0; i < sources.length; i++) {
+                                var saveInferencePriority = inferencePriority;
+                                inferencePriority = 512;
+                                inferFromTypes(sources[i], t);
+                                if (inferencePriority === priority)
+                                    matched_1[i] = true;
+                                inferenceCircularity = inferenceCircularity || inferencePriority === -1;
+                                inferencePriority = Math.min(inferencePriority, saveInferencePriority);
+                            }
+                        }
+                    }
+                    if (typeVariableCount === 0) {
+                        var intersectionTypeVariable = getSingleTypeVariableFromIntersectionTypes(targets);
+                        if (intersectionTypeVariable) {
+                            inferWithPriority(source, intersectionTypeVariable, 1);
+                        }
+                        return;
+                    }
+                    if (typeVariableCount === 1 && !inferenceCircularity) {
+                        var unmatched = ts.flatMap(sources, function (s, i) { return matched_1[i] ? undefined : s; });
+                        if (unmatched.length) {
+                            inferFromTypes(getUnionType(unmatched), nakedTypeVariable);
+                            return;
+                        }
+                    }
+                }
+                else {
+                    for (var _a = 0, targets_3 = targets; _a < targets_3.length; _a++) {
+                        var t = targets_3[_a];
+                        if (getInferenceInfoForType(t)) {
+                            typeVariableCount++;
+                        }
+                        else {
+                            inferFromTypes(source, t);
+                        }
+                    }
+                }
+                if (targetFlags & 2097152 ? typeVariableCount === 1 : typeVariableCount > 0) {
+                    for (var _b = 0, targets_4 = targets; _b < targets_4.length; _b++) {
+                        var t = targets_4[_b];
+                        if (getInferenceInfoForType(t)) {
+                            inferWithPriority(source, t, 1);
+                        }
+                    }
+                }
+            }
+            function inferToMappedType(source, target, constraintType) {
+                if (constraintType.flags & 1048576) {
+                    var result = false;
+                    for (var _i = 0, _a = constraintType.types; _i < _a.length; _i++) {
+                        var type = _a[_i];
+                        result = inferToMappedType(source, target, type) || result;
+                    }
+                    return result;
+                }
+                if (constraintType.flags & 4194304) {
+                    var inference = getInferenceInfoForType(constraintType.type);
+                    if (inference && !inference.isFixed && !isFromInferenceBlockedSource(source)) {
+                        var inferredType = inferTypeForHomomorphicMappedType(source, target, constraintType);
+                        if (inferredType) {
+                            inferWithPriority(inferredType, inference.typeParameter, ts.getObjectFlags(source) & 2097152 ?
+                                4 :
+                                2);
+                        }
+                    }
+                    return true;
+                }
+                if (constraintType.flags & 262144) {
+                    inferWithPriority(getIndexType(source), constraintType, 8);
+                    var extendedConstraint = getConstraintOfType(constraintType);
+                    if (extendedConstraint && inferToMappedType(source, target, extendedConstraint)) {
+                        return true;
+                    }
+                    var propTypes = ts.map(getPropertiesOfType(source), getTypeOfSymbol);
+                    var stringIndexType = getIndexTypeOfType(source, 0);
+                    var numberIndexInfo = getNonEnumNumberIndexInfo(source);
+                    var numberIndexType = numberIndexInfo && numberIndexInfo.type;
+                    inferFromTypes(getUnionType(ts.append(ts.append(propTypes, stringIndexType), numberIndexType)), getTemplateTypeFromMappedType(target));
+                    return true;
+                }
+                return false;
+            }
+            function inferFromObjectTypes(source, target) {
+                var isNonConstructorObject = target.flags & 524288 &&
+                    !(ts.getObjectFlags(target) & 16 && target.symbol && target.symbol.flags & 32);
+                var symbolOrType = isNonConstructorObject ? isTupleType(target) ? target.target : target.symbol : undefined;
+                if (symbolOrType) {
+                    if (ts.contains(symbolOrTypeStack, symbolOrType)) {
+                        inferencePriority = -1;
+                        return;
+                    }
+                    (symbolOrTypeStack || (symbolOrTypeStack = [])).push(symbolOrType);
+                    inferFromObjectTypesWorker(source, target);
+                    symbolOrTypeStack.pop();
+                }
+                else {
+                    inferFromObjectTypesWorker(source, target);
+                }
+            }
+            function inferFromObjectTypesWorker(source, target) {
+                if (ts.getObjectFlags(source) & 4 && ts.getObjectFlags(target) & 4 && (source.target === target.target || isArrayType(source) && isArrayType(target))) {
+                    inferFromTypeArguments(getTypeArguments(source), getTypeArguments(target), getVariances(source.target));
+                    return;
+                }
+                if (isGenericMappedType(source) && isGenericMappedType(target)) {
+                    inferFromTypes(getConstraintTypeFromMappedType(source), getConstraintTypeFromMappedType(target));
+                    inferFromTypes(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target));
+                }
+                if (ts.getObjectFlags(target) & 32) {
+                    var constraintType = getConstraintTypeFromMappedType(target);
+                    if (inferToMappedType(source, target, constraintType)) {
+                        return;
+                    }
+                }
+                if (!typesDefinitelyUnrelated(source, target)) {
+                    if (isArrayType(source) || isTupleType(source)) {
+                        if (isTupleType(target)) {
+                            var sourceLength = isTupleType(source) ? getLengthOfTupleType(source) : 0;
+                            var targetLength = getLengthOfTupleType(target);
+                            var sourceRestType = isTupleType(source) ? getRestTypeOfTupleType(source) : getElementTypeOfArrayType(source);
+                            var targetRestType = getRestTypeOfTupleType(target);
+                            var fixedLength = targetLength < sourceLength || sourceRestType ? targetLength : sourceLength;
+                            for (var i = 0; i < fixedLength; i++) {
+                                inferFromTypes(i < sourceLength ? getTypeArguments(source)[i] : sourceRestType, getTypeArguments(target)[i]);
+                            }
+                            if (targetRestType) {
+                                var types = fixedLength < sourceLength ? getTypeArguments(source).slice(fixedLength, sourceLength) : [];
+                                if (sourceRestType) {
+                                    types.push(sourceRestType);
+                                }
+                                if (types.length) {
+                                    inferFromTypes(getUnionType(types), targetRestType);
+                                }
+                            }
+                            return;
+                        }
+                        if (isArrayType(target)) {
+                            inferFromIndexTypes(source, target);
+                            return;
+                        }
+                    }
+                    inferFromProperties(source, target);
+                    inferFromSignatures(source, target, 0);
+                    inferFromSignatures(source, target, 1);
+                    inferFromIndexTypes(source, target);
+                }
+            }
+            function inferFromProperties(source, target) {
+                var properties = getPropertiesOfObjectType(target);
+                for (var _i = 0, properties_3 = properties; _i < properties_3.length; _i++) {
+                    var targetProp = properties_3[_i];
+                    var sourceProp = getPropertyOfType(source, targetProp.escapedName);
+                    if (sourceProp) {
+                        inferFromTypes(getTypeOfSymbol(sourceProp), getTypeOfSymbol(targetProp));
+                    }
+                }
+            }
+            function inferFromSignatures(source, target, kind) {
+                var sourceSignatures = getSignaturesOfType(source, kind);
+                var targetSignatures = getSignaturesOfType(target, kind);
+                var sourceLen = sourceSignatures.length;
+                var targetLen = targetSignatures.length;
+                var len = sourceLen < targetLen ? sourceLen : targetLen;
+                var skipParameters = !!(ts.getObjectFlags(source) & 2097152);
+                for (var i = 0; i < len; i++) {
+                    inferFromSignature(getBaseSignature(sourceSignatures[sourceLen - len + i]), getErasedSignature(targetSignatures[targetLen - len + i]), skipParameters);
+                }
+            }
+            function inferFromSignature(source, target, skipParameters) {
+                if (!skipParameters) {
+                    var saveBivariant = bivariant;
+                    var kind = target.declaration ? target.declaration.kind : 0;
+                    bivariant = bivariant || kind === 161 || kind === 160 || kind === 162;
+                    applyToParameterTypes(source, target, inferFromContravariantTypes);
+                    bivariant = saveBivariant;
+                }
+                applyToReturnTypes(source, target, inferFromTypes);
+            }
+            function inferFromIndexTypes(source, target) {
+                var targetStringIndexType = getIndexTypeOfType(target, 0);
+                if (targetStringIndexType) {
+                    var sourceIndexType = getIndexTypeOfType(source, 0) ||
+                        getImplicitIndexTypeOfType(source, 0);
+                    if (sourceIndexType) {
+                        inferFromTypes(sourceIndexType, targetStringIndexType);
+                    }
+                }
+                var targetNumberIndexType = getIndexTypeOfType(target, 1);
+                if (targetNumberIndexType) {
+                    var sourceIndexType = getIndexTypeOfType(source, 1) ||
+                        getIndexTypeOfType(source, 0) ||
+                        getImplicitIndexTypeOfType(source, 1);
+                    if (sourceIndexType) {
+                        inferFromTypes(sourceIndexType, targetNumberIndexType);
+                    }
+                }
+            }
+        }
+        function isTypeOrBaseIdenticalTo(s, t) {
+            return isTypeIdenticalTo(s, t) || !!(t.flags & 4 && s.flags & 128 || t.flags & 8 && s.flags & 256);
+        }
+        function isTypeCloselyMatchedBy(s, t) {
+            return !!(s.flags & 524288 && t.flags & 524288 && s.symbol && s.symbol === t.symbol ||
+                s.aliasSymbol && s.aliasTypeArguments && s.aliasSymbol === t.aliasSymbol);
+        }
+        function hasPrimitiveConstraint(type) {
+            var constraint = getConstraintOfTypeParameter(type);
+            return !!constraint && maybeTypeOfKind(constraint.flags & 16777216 ? getDefaultConstraintOfConditionalType(constraint) : constraint, 131068 | 4194304);
+        }
+        function isObjectLiteralType(type) {
+            return !!(ts.getObjectFlags(type) & 128);
+        }
+        function isObjectOrArrayLiteralType(type) {
+            return !!(ts.getObjectFlags(type) & (128 | 65536));
+        }
+        function unionObjectAndArrayLiteralCandidates(candidates) {
+            if (candidates.length > 1) {
+                var objectLiterals = ts.filter(candidates, isObjectOrArrayLiteralType);
+                if (objectLiterals.length) {
+                    var literalsType = getUnionType(objectLiterals, 2);
+                    return ts.concatenate(ts.filter(candidates, function (t) { return !isObjectOrArrayLiteralType(t); }), [literalsType]);
+                }
+            }
+            return candidates;
+        }
+        function getContravariantInference(inference) {
+            return inference.priority & 104 ? getIntersectionType(inference.contraCandidates) : getCommonSubtype(inference.contraCandidates);
+        }
+        function getCovariantInference(inference, signature) {
+            var candidates = unionObjectAndArrayLiteralCandidates(inference.candidates);
+            var primitiveConstraint = hasPrimitiveConstraint(inference.typeParameter);
+            var widenLiteralTypes = !primitiveConstraint && inference.topLevel &&
+                (inference.isFixed || !isTypeParameterAtTopLevel(getReturnTypeOfSignature(signature), inference.typeParameter));
+            var baseCandidates = primitiveConstraint ? ts.sameMap(candidates, getRegularTypeOfLiteralType) :
+                widenLiteralTypes ? ts.sameMap(candidates, getWidenedLiteralType) :
+                    candidates;
+            var unwidenedType = inference.priority & 104 ?
+                getUnionType(baseCandidates, 2) :
+                getCommonSupertype(baseCandidates);
+            return getWidenedType(unwidenedType);
+        }
+        function getInferredType(context, index) {
+            var inference = context.inferences[index];
+            if (!inference.inferredType) {
+                var inferredType = void 0;
+                var signature = context.signature;
+                if (signature) {
+                    var inferredCovariantType = inference.candidates ? getCovariantInference(inference, signature) : undefined;
+                    if (inference.contraCandidates) {
+                        var inferredContravariantType = getContravariantInference(inference);
+                        inferredType = inferredCovariantType && !(inferredCovariantType.flags & 131072) &&
+                            isTypeSubtypeOf(inferredCovariantType, inferredContravariantType) ?
+                            inferredCovariantType : inferredContravariantType;
+                    }
+                    else if (inferredCovariantType) {
+                        inferredType = inferredCovariantType;
+                    }
+                    else if (context.flags & 1) {
+                        inferredType = silentNeverType;
+                    }
+                    else {
+                        var defaultType = getDefaultFromTypeParameter(inference.typeParameter);
+                        if (defaultType) {
+                            inferredType = instantiateType(defaultType, mergeTypeMappers(createBackreferenceMapper(context, index), context.nonFixingMapper));
+                        }
+                    }
+                }
+                else {
+                    inferredType = getTypeFromInference(inference);
+                }
+                inference.inferredType = inferredType || getDefaultTypeArgumentType(!!(context.flags & 2));
+                var constraint = getConstraintOfTypeParameter(inference.typeParameter);
+                if (constraint) {
+                    var instantiatedConstraint = instantiateType(constraint, context.nonFixingMapper);
+                    if (!inferredType || !context.compareTypes(inferredType, getTypeWithThisArgument(instantiatedConstraint, inferredType))) {
+                        inference.inferredType = inferredType = instantiatedConstraint;
+                    }
+                }
+            }
+            return inference.inferredType;
+        }
+        function getDefaultTypeArgumentType(isInJavaScriptFile) {
+            return isInJavaScriptFile ? anyType : unknownType;
+        }
+        function getInferredTypes(context) {
+            var result = [];
+            for (var i = 0; i < context.inferences.length; i++) {
+                result.push(getInferredType(context, i));
+            }
+            return result;
+        }
+        function getCannotFindNameDiagnosticForName(node) {
+            switch (node.escapedText) {
+                case "document":
+                case "console":
+                    return ts.Diagnostics.Cannot_find_name_0_Do_you_need_to_change_your_target_library_Try_changing_the_lib_compiler_option_to_include_dom;
+                case "$":
+                    return compilerOptions.types
+                        ? ts.Diagnostics.Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_jQuery_Try_npm_i_types_Slashjquery_and_then_add_jquery_to_the_types_field_in_your_tsconfig
+                        : ts.Diagnostics.Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_jQuery_Try_npm_i_types_Slashjquery;
+                case "describe":
+                case "suite":
+                case "it":
+                case "test":
+                    return compilerOptions.types
+                        ? ts.Diagnostics.Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_a_test_runner_Try_npm_i_types_Slashjest_or_npm_i_types_Slashmocha_and_then_add_jest_or_mocha_to_the_types_field_in_your_tsconfig
+                        : ts.Diagnostics.Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_a_test_runner_Try_npm_i_types_Slashjest_or_npm_i_types_Slashmocha;
+                case "process":
+                case "require":
+                case "Buffer":
+                case "module":
+                    return compilerOptions.types
+                        ? ts.Diagnostics.Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_node_Try_npm_i_types_Slashnode_and_then_add_node_to_the_types_field_in_your_tsconfig
+                        : ts.Diagnostics.Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_node_Try_npm_i_types_Slashnode;
+                case "Map":
+                case "Set":
+                case "Promise":
+                case "Symbol":
+                case "WeakMap":
+                case "WeakSet":
+                case "Iterator":
+                case "AsyncIterator":
+                    return ts.Diagnostics.Cannot_find_name_0_Do_you_need_to_change_your_target_library_Try_changing_the_lib_compiler_option_to_es2015_or_later;
+                default:
+                    if (node.parent.kind === 282) {
+                        return ts.Diagnostics.No_value_exists_in_scope_for_the_shorthand_property_0_Either_declare_one_or_provide_an_initializer;
+                    }
+                    else {
+                        return ts.Diagnostics.Cannot_find_name_0;
+                    }
+            }
+        }
+        function getResolvedSymbol(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedSymbol) {
+                links.resolvedSymbol = !ts.nodeIsMissing(node) &&
+                    resolveName(node, node.escapedText, 111551 | 1048576, getCannotFindNameDiagnosticForName(node), node, !ts.isWriteOnlyAccess(node), false, ts.Diagnostics.Cannot_find_name_0_Did_you_mean_1) || unknownSymbol;
+            }
+            return links.resolvedSymbol;
+        }
+        function isInTypeQuery(node) {
+            return !!ts.findAncestor(node, function (n) { return n.kind === 172 ? true : n.kind === 75 || n.kind === 153 ? false : "quit"; });
+        }
+        function getFlowCacheKey(node, declaredType, initialType, flowContainer) {
+            switch (node.kind) {
+                case 75:
+                    var symbol = getResolvedSymbol(node);
+                    return symbol !== unknownSymbol ? (flowContainer ? getNodeId(flowContainer) : "-1") + "|" + getTypeId(declaredType) + "|" + getTypeId(initialType) + "|" + (isConstraintPosition(node) ? "@" : "") + getSymbolId(symbol) : undefined;
+                case 104:
+                    return "0";
+                case 218:
+                case 200:
+                    return getFlowCacheKey(node.expression, declaredType, initialType, flowContainer);
+                case 194:
+                case 195:
+                    var propName = getAccessedPropertyName(node);
+                    if (propName !== undefined) {
+                        var key = getFlowCacheKey(node.expression, declaredType, initialType, flowContainer);
+                        return key && key + "." + propName;
+                    }
+            }
+            return undefined;
+        }
+        function isMatchingReference(source, target) {
+            switch (target.kind) {
+                case 200:
+                case 218:
+                    return isMatchingReference(source, target.expression);
+            }
+            switch (source.kind) {
+                case 75:
+                    return target.kind === 75 && getResolvedSymbol(source) === getResolvedSymbol(target) ||
+                        (target.kind === 242 || target.kind === 191) &&
+                            getExportSymbolOfValueSymbolIfExported(getResolvedSymbol(source)) === getSymbolOfNode(target);
+                case 104:
+                    return target.kind === 104;
+                case 102:
+                    return target.kind === 102;
+                case 218:
+                case 200:
+                    return isMatchingReference(source.expression, target);
+                case 194:
+                case 195:
+                    return ts.isAccessExpression(target) &&
+                        getAccessedPropertyName(source) === getAccessedPropertyName(target) &&
+                        isMatchingReference(source.expression, target.expression);
+            }
+            return false;
+        }
+        function containsTruthyCheck(source, target) {
+            return isMatchingReference(source, target) ||
+                (target.kind === 209 && target.operatorToken.kind === 55 &&
+                    (containsTruthyCheck(source, target.left) || containsTruthyCheck(source, target.right)));
+        }
+        function getAccessedPropertyName(access) {
+            return access.kind === 194 ? access.name.escapedText :
+                ts.isStringOrNumericLiteralLike(access.argumentExpression) ? ts.escapeLeadingUnderscores(access.argumentExpression.text) :
+                    undefined;
+        }
+        function containsMatchingReference(source, target) {
+            while (ts.isAccessExpression(source)) {
+                source = source.expression;
+                if (isMatchingReference(source, target)) {
+                    return true;
+                }
+            }
+            return false;
+        }
+        function optionalChainContainsReference(source, target) {
+            while (ts.isOptionalChain(source)) {
+                source = source.expression;
+                if (isMatchingReference(source, target)) {
+                    return true;
+                }
+            }
+            return false;
+        }
+        function isDiscriminantProperty(type, name) {
+            if (type && type.flags & 1048576) {
+                var prop = getUnionOrIntersectionProperty(type, name);
+                if (prop && ts.getCheckFlags(prop) & 2) {
+                    if (prop.isDiscriminantProperty === undefined) {
+                        prop.isDiscriminantProperty =
+                            (prop.checkFlags & 192) === 192 &&
+                                !maybeTypeOfKind(getTypeOfSymbol(prop), 63176704);
+                    }
+                    return !!prop.isDiscriminantProperty;
+                }
+            }
+            return false;
+        }
+        function findDiscriminantProperties(sourceProperties, target) {
+            var result;
+            for (var _i = 0, sourceProperties_2 = sourceProperties; _i < sourceProperties_2.length; _i++) {
+                var sourceProperty = sourceProperties_2[_i];
+                if (isDiscriminantProperty(target, sourceProperty.escapedName)) {
+                    if (result) {
+                        result.push(sourceProperty);
+                        continue;
+                    }
+                    result = [sourceProperty];
+                }
+            }
+            return result;
+        }
+        function isOrContainsMatchingReference(source, target) {
+            return isMatchingReference(source, target) || containsMatchingReference(source, target);
+        }
+        function hasMatchingArgument(callExpression, reference) {
+            if (callExpression.arguments) {
+                for (var _i = 0, _a = callExpression.arguments; _i < _a.length; _i++) {
+                    var argument = _a[_i];
+                    if (isOrContainsMatchingReference(reference, argument)) {
+                        return true;
+                    }
+                }
+            }
+            if (callExpression.expression.kind === 194 &&
+                isOrContainsMatchingReference(reference, callExpression.expression.expression)) {
+                return true;
+            }
+            return false;
+        }
+        function getFlowNodeId(flow) {
+            if (!flow.id || flow.id < 0) {
+                flow.id = nextFlowId;
+                nextFlowId++;
+            }
+            return flow.id;
+        }
+        function typeMaybeAssignableTo(source, target) {
+            if (!(source.flags & 1048576)) {
+                return isTypeAssignableTo(source, target);
+            }
+            for (var _i = 0, _a = source.types; _i < _a.length; _i++) {
+                var t = _a[_i];
+                if (isTypeAssignableTo(t, target)) {
+                    return true;
+                }
+            }
+            return false;
+        }
+        function getAssignmentReducedType(declaredType, assignedType) {
+            if (declaredType !== assignedType) {
+                if (assignedType.flags & 131072) {
+                    return assignedType;
+                }
+                var reducedType = filterType(declaredType, function (t) { return typeMaybeAssignableTo(assignedType, t); });
+                if (assignedType.flags & 512 && isFreshLiteralType(assignedType)) {
+                    reducedType = mapType(reducedType, getFreshTypeOfLiteralType);
+                }
+                if (isTypeAssignableTo(assignedType, reducedType)) {
+                    return reducedType;
+                }
+            }
+            return declaredType;
+        }
+        function getTypeFactsOfTypes(types) {
+            var result = 0;
+            for (var _i = 0, types_15 = types; _i < types_15.length; _i++) {
+                var t = types_15[_i];
+                result |= getTypeFacts(t);
+            }
+            return result;
+        }
+        function isFunctionObjectType(type) {
+            var resolved = resolveStructuredTypeMembers(type);
+            return !!(resolved.callSignatures.length || resolved.constructSignatures.length ||
+                resolved.members.get("bind") && isTypeSubtypeOf(type, globalFunctionType));
+        }
+        function getTypeFacts(type) {
+            var flags = type.flags;
+            if (flags & 4) {
+                return strictNullChecks ? 16317953 : 16776705;
+            }
+            if (flags & 128) {
+                var isEmpty = type.value === "";
+                return strictNullChecks ?
+                    isEmpty ? 12123649 : 7929345 :
+                    isEmpty ? 12582401 : 16776705;
+            }
+            if (flags & (8 | 32)) {
+                return strictNullChecks ? 16317698 : 16776450;
+            }
+            if (flags & 256) {
+                var isZero = type.value === 0;
+                return strictNullChecks ?
+                    isZero ? 12123394 : 7929090 :
+                    isZero ? 12582146 : 16776450;
+            }
+            if (flags & 64) {
+                return strictNullChecks ? 16317188 : 16775940;
+            }
+            if (flags & 2048) {
+                var isZero = isZeroBigInt(type);
+                return strictNullChecks ?
+                    isZero ? 12122884 : 7928580 :
+                    isZero ? 12581636 : 16775940;
+            }
+            if (flags & 16) {
+                return strictNullChecks ? 16316168 : 16774920;
+            }
+            if (flags & 528) {
+                return strictNullChecks ?
+                    (type === falseType || type === regularFalseType) ? 12121864 : 7927560 :
+                    (type === falseType || type === regularFalseType) ? 12580616 : 16774920;
+            }
+            if (flags & 524288) {
+                return ts.getObjectFlags(type) & 16 && isEmptyObjectType(type) ?
+                    strictNullChecks ? 16318463 : 16777215 :
+                    isFunctionObjectType(type) ?
+                        strictNullChecks ? 7880640 : 16728000 :
+                        strictNullChecks ? 7888800 : 16736160;
+            }
+            if (flags & (16384 | 32768)) {
+                return 9830144;
+            }
+            if (flags & 65536) {
+                return 9363232;
+            }
+            if (flags & 12288) {
+                return strictNullChecks ? 7925520 : 16772880;
+            }
+            if (flags & 67108864) {
+                return strictNullChecks ? 7888800 : 16736160;
+            }
+            if (flags & 131072) {
+                return 0;
+            }
+            if (flags & 63176704) {
+                return getTypeFacts(getBaseConstraintOfType(type) || unknownType);
+            }
+            if (flags & 3145728) {
+                return getTypeFactsOfTypes(type.types);
+            }
+            return 16777215;
+        }
+        function getTypeWithFacts(type, include) {
+            return filterType(type, function (t) { return (getTypeFacts(t) & include) !== 0; });
+        }
+        function getTypeWithDefault(type, defaultExpression) {
+            if (defaultExpression) {
+                var defaultType = getTypeOfExpression(defaultExpression);
+                return getUnionType([getTypeWithFacts(type, 524288), defaultType]);
+            }
+            return type;
+        }
+        function getTypeOfDestructuredProperty(type, name) {
+            var nameType = getLiteralTypeFromPropertyName(name);
+            if (!isTypeUsableAsPropertyName(nameType))
+                return errorType;
+            var text = getPropertyNameFromType(nameType);
+            return getConstraintForLocation(getTypeOfPropertyOfType(type, text), name) ||
+                isNumericLiteralName(text) && getIndexTypeOfType(type, 1) ||
+                getIndexTypeOfType(type, 0) ||
+                errorType;
+        }
+        function getTypeOfDestructuredArrayElement(type, index) {
+            return everyType(type, isTupleLikeType) && getTupleElementType(type, index) ||
+                checkIteratedTypeOrElementType(65, type, undefinedType, undefined) ||
+                errorType;
+        }
+        function getTypeOfDestructuredSpreadExpression(type) {
+            return createArrayType(checkIteratedTypeOrElementType(65, type, undefinedType, undefined) || errorType);
+        }
+        function getAssignedTypeOfBinaryExpression(node) {
+            var isDestructuringDefaultAssignment = node.parent.kind === 192 && isDestructuringAssignmentTarget(node.parent) ||
+                node.parent.kind === 281 && isDestructuringAssignmentTarget(node.parent.parent);
+            return isDestructuringDefaultAssignment ?
+                getTypeWithDefault(getAssignedType(node), node.right) :
+                getTypeOfExpression(node.right);
+        }
+        function isDestructuringAssignmentTarget(parent) {
+            return parent.parent.kind === 209 && parent.parent.left === parent ||
+                parent.parent.kind === 232 && parent.parent.initializer === parent;
+        }
+        function getAssignedTypeOfArrayLiteralElement(node, element) {
+            return getTypeOfDestructuredArrayElement(getAssignedType(node), node.elements.indexOf(element));
+        }
+        function getAssignedTypeOfSpreadExpression(node) {
+            return getTypeOfDestructuredSpreadExpression(getAssignedType(node.parent));
+        }
+        function getAssignedTypeOfPropertyAssignment(node) {
+            return getTypeOfDestructuredProperty(getAssignedType(node.parent), node.name);
+        }
+        function getAssignedTypeOfShorthandPropertyAssignment(node) {
+            return getTypeWithDefault(getAssignedTypeOfPropertyAssignment(node), node.objectAssignmentInitializer);
+        }
+        function getAssignedType(node) {
+            var parent = node.parent;
+            switch (parent.kind) {
+                case 231:
+                    return stringType;
+                case 232:
+                    return checkRightHandSideOfForOf(parent) || errorType;
+                case 209:
+                    return getAssignedTypeOfBinaryExpression(parent);
+                case 203:
+                    return undefinedType;
+                case 192:
+                    return getAssignedTypeOfArrayLiteralElement(parent, node);
+                case 213:
+                    return getAssignedTypeOfSpreadExpression(parent);
+                case 281:
+                    return getAssignedTypeOfPropertyAssignment(parent);
+                case 282:
+                    return getAssignedTypeOfShorthandPropertyAssignment(parent);
+            }
+            return errorType;
+        }
+        function getInitialTypeOfBindingElement(node) {
+            var pattern = node.parent;
+            var parentType = getInitialType(pattern.parent);
+            var type = pattern.kind === 189 ?
+                getTypeOfDestructuredProperty(parentType, node.propertyName || node.name) :
+                !node.dotDotDotToken ?
+                    getTypeOfDestructuredArrayElement(parentType, pattern.elements.indexOf(node)) :
+                    getTypeOfDestructuredSpreadExpression(parentType);
+            return getTypeWithDefault(type, node.initializer);
+        }
+        function getTypeOfInitializer(node) {
+            var links = getNodeLinks(node);
+            return links.resolvedType || getTypeOfExpression(node);
+        }
+        function getInitialTypeOfVariableDeclaration(node) {
+            if (node.initializer) {
+                return getTypeOfInitializer(node.initializer);
+            }
+            if (node.parent.parent.kind === 231) {
+                return stringType;
+            }
+            if (node.parent.parent.kind === 232) {
+                return checkRightHandSideOfForOf(node.parent.parent) || errorType;
+            }
+            return errorType;
+        }
+        function getInitialType(node) {
+            return node.kind === 242 ?
+                getInitialTypeOfVariableDeclaration(node) :
+                getInitialTypeOfBindingElement(node);
+        }
+        function isEmptyArrayAssignment(node) {
+            return node.kind === 242 && node.initializer &&
+                isEmptyArrayLiteral(node.initializer) ||
+                node.kind !== 191 && node.parent.kind === 209 &&
+                    isEmptyArrayLiteral(node.parent.right);
+        }
+        function getReferenceCandidate(node) {
+            switch (node.kind) {
+                case 200:
+                    return getReferenceCandidate(node.expression);
+                case 209:
+                    switch (node.operatorToken.kind) {
+                        case 62:
+                            return getReferenceCandidate(node.left);
+                        case 27:
+                            return getReferenceCandidate(node.right);
+                    }
+            }
+            return node;
+        }
+        function getReferenceRoot(node) {
+            var parent = node.parent;
+            return parent.kind === 200 ||
+                parent.kind === 209 && parent.operatorToken.kind === 62 && parent.left === node ||
+                parent.kind === 209 && parent.operatorToken.kind === 27 && parent.right === node ?
+                getReferenceRoot(parent) : node;
+        }
+        function getTypeOfSwitchClause(clause) {
+            if (clause.kind === 277) {
+                return getRegularTypeOfLiteralType(getTypeOfExpression(clause.expression));
+            }
+            return neverType;
+        }
+        function getSwitchClauseTypes(switchStatement) {
+            var links = getNodeLinks(switchStatement);
+            if (!links.switchTypes) {
+                links.switchTypes = [];
+                for (var _i = 0, _a = switchStatement.caseBlock.clauses; _i < _a.length; _i++) {
+                    var clause = _a[_i];
+                    links.switchTypes.push(getTypeOfSwitchClause(clause));
+                }
+            }
+            return links.switchTypes;
+        }
+        function getSwitchClauseTypeOfWitnesses(switchStatement, retainDefault) {
+            var witnesses = [];
+            for (var _i = 0, _a = switchStatement.caseBlock.clauses; _i < _a.length; _i++) {
+                var clause = _a[_i];
+                if (clause.kind === 277) {
+                    if (ts.isStringLiteralLike(clause.expression)) {
+                        witnesses.push(clause.expression.text);
+                        continue;
+                    }
+                    return ts.emptyArray;
+                }
+                if (retainDefault)
+                    witnesses.push(undefined);
+            }
+            return witnesses;
+        }
+        function eachTypeContainedIn(source, types) {
+            return source.flags & 1048576 ? !ts.forEach(source.types, function (t) { return !ts.contains(types, t); }) : ts.contains(types, source);
+        }
+        function isTypeSubsetOf(source, target) {
+            return source === target || target.flags & 1048576 && isTypeSubsetOfUnion(source, target);
+        }
+        function isTypeSubsetOfUnion(source, target) {
+            if (source.flags & 1048576) {
+                for (var _i = 0, _a = source.types; _i < _a.length; _i++) {
+                    var t = _a[_i];
+                    if (!containsType(target.types, t)) {
+                        return false;
+                    }
+                }
+                return true;
+            }
+            if (source.flags & 1024 && getBaseTypeOfEnumLiteralType(source) === target) {
+                return true;
+            }
+            return containsType(target.types, source);
+        }
+        function forEachType(type, f) {
+            return type.flags & 1048576 ? ts.forEach(type.types, f) : f(type);
+        }
+        function everyType(type, f) {
+            return type.flags & 1048576 ? ts.every(type.types, f) : f(type);
+        }
+        function filterType(type, f) {
+            if (type.flags & 1048576) {
+                var types = type.types;
+                var filtered = ts.filter(types, f);
+                return filtered === types ? type : getUnionTypeFromSortedList(filtered, type.objectFlags);
+            }
+            return type.flags & 131072 || f(type) ? type : neverType;
+        }
+        function countTypes(type) {
+            return type.flags & 1048576 ? type.types.length : 1;
+        }
+        function mapType(type, mapper, noReductions) {
+            if (type.flags & 131072) {
+                return type;
+            }
+            if (!(type.flags & 1048576)) {
+                return mapper(type);
+            }
+            var mappedTypes;
+            for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
+                var t = _a[_i];
+                var mapped = mapper(t);
+                if (mapped) {
+                    if (!mappedTypes) {
+                        mappedTypes = [mapped];
+                    }
+                    else {
+                        mappedTypes.push(mapped);
+                    }
+                }
+            }
+            return mappedTypes && getUnionType(mappedTypes, noReductions ? 0 : 1);
+        }
+        function extractTypesOfKind(type, kind) {
+            return filterType(type, function (t) { return (t.flags & kind) !== 0; });
+        }
+        function replacePrimitivesWithLiterals(typeWithPrimitives, typeWithLiterals) {
+            if (isTypeSubsetOf(stringType, typeWithPrimitives) && maybeTypeOfKind(typeWithLiterals, 128) ||
+                isTypeSubsetOf(numberType, typeWithPrimitives) && maybeTypeOfKind(typeWithLiterals, 256) ||
+                isTypeSubsetOf(bigintType, typeWithPrimitives) && maybeTypeOfKind(typeWithLiterals, 2048)) {
+                return mapType(typeWithPrimitives, function (t) {
+                    return t.flags & 4 ? extractTypesOfKind(typeWithLiterals, 4 | 128) :
+                        t.flags & 8 ? extractTypesOfKind(typeWithLiterals, 8 | 256) :
+                            t.flags & 64 ? extractTypesOfKind(typeWithLiterals, 64 | 2048) : t;
+                });
+            }
+            return typeWithPrimitives;
+        }
+        function isIncomplete(flowType) {
+            return flowType.flags === 0;
+        }
+        function getTypeFromFlowType(flowType) {
+            return flowType.flags === 0 ? flowType.type : flowType;
+        }
+        function createFlowType(type, incomplete) {
+            return incomplete ? { flags: 0, type: type } : type;
+        }
+        function createEvolvingArrayType(elementType) {
+            var result = createObjectType(256);
+            result.elementType = elementType;
+            return result;
+        }
+        function getEvolvingArrayType(elementType) {
+            return evolvingArrayTypes[elementType.id] || (evolvingArrayTypes[elementType.id] = createEvolvingArrayType(elementType));
+        }
+        function addEvolvingArrayElementType(evolvingArrayType, node) {
+            var elementType = getBaseTypeOfLiteralType(getContextFreeTypeOfExpression(node));
+            return isTypeSubsetOf(elementType, evolvingArrayType.elementType) ? evolvingArrayType : getEvolvingArrayType(getUnionType([evolvingArrayType.elementType, elementType]));
+        }
+        function createFinalArrayType(elementType) {
+            return elementType.flags & 131072 ?
+                autoArrayType :
+                createArrayType(elementType.flags & 1048576 ?
+                    getUnionType(elementType.types, 2) :
+                    elementType);
+        }
+        function getFinalArrayType(evolvingArrayType) {
+            return evolvingArrayType.finalArrayType || (evolvingArrayType.finalArrayType = createFinalArrayType(evolvingArrayType.elementType));
+        }
+        function finalizeEvolvingArrayType(type) {
+            return ts.getObjectFlags(type) & 256 ? getFinalArrayType(type) : type;
+        }
+        function getElementTypeOfEvolvingArrayType(type) {
+            return ts.getObjectFlags(type) & 256 ? type.elementType : neverType;
+        }
+        function isEvolvingArrayTypeList(types) {
+            var hasEvolvingArrayType = false;
+            for (var _i = 0, types_16 = types; _i < types_16.length; _i++) {
+                var t = types_16[_i];
+                if (!(t.flags & 131072)) {
+                    if (!(ts.getObjectFlags(t) & 256)) {
+                        return false;
+                    }
+                    hasEvolvingArrayType = true;
+                }
+            }
+            return hasEvolvingArrayType;
+        }
+        function getUnionOrEvolvingArrayType(types, subtypeReduction) {
+            return isEvolvingArrayTypeList(types) ?
+                getEvolvingArrayType(getUnionType(ts.map(types, getElementTypeOfEvolvingArrayType))) :
+                getUnionType(ts.sameMap(types, finalizeEvolvingArrayType), subtypeReduction);
+        }
+        function isEvolvingArrayOperationTarget(node) {
+            var root = getReferenceRoot(node);
+            var parent = root.parent;
+            var isLengthPushOrUnshift = ts.isPropertyAccessExpression(parent) && (parent.name.escapedText === "length" ||
+                parent.parent.kind === 196
+                    && ts.isIdentifier(parent.name)
+                    && ts.isPushOrUnshiftIdentifier(parent.name));
+            var isElementAssignment = parent.kind === 195 &&
+                parent.expression === root &&
+                parent.parent.kind === 209 &&
+                parent.parent.operatorToken.kind === 62 &&
+                parent.parent.left === parent &&
+                !ts.isAssignmentTarget(parent.parent) &&
+                isTypeAssignableToKind(getTypeOfExpression(parent.argumentExpression), 296);
+            return isLengthPushOrUnshift || isElementAssignment;
+        }
+        function isDeclarationWithExplicitTypeAnnotation(declaration) {
+            return (declaration.kind === 242 || declaration.kind === 156 ||
+                declaration.kind === 159 || declaration.kind === 158) &&
+                !!ts.getEffectiveTypeAnnotationNode(declaration);
+        }
+        function getExplicitTypeOfSymbol(symbol, diagnostic) {
+            if (symbol.flags & (16 | 8192 | 32 | 512)) {
+                return getTypeOfSymbol(symbol);
+            }
+            if (symbol.flags & (3 | 4)) {
+                var declaration = symbol.valueDeclaration;
+                if (declaration) {
+                    if (isDeclarationWithExplicitTypeAnnotation(declaration)) {
+                        return getTypeOfSymbol(symbol);
+                    }
+                    if (ts.isVariableDeclaration(declaration) && declaration.parent.parent.kind === 232) {
+                        var statement = declaration.parent.parent;
+                        var expressionType = getTypeOfDottedName(statement.expression, undefined);
+                        if (expressionType) {
+                            var use = statement.awaitModifier ? 15 : 13;
+                            return checkIteratedTypeOrElementType(use, expressionType, undefinedType, undefined);
+                        }
+                    }
+                    if (diagnostic) {
+                        ts.addRelatedInfo(diagnostic, ts.createDiagnosticForNode(declaration, ts.Diagnostics._0_needs_an_explicit_type_annotation, symbolToString(symbol)));
+                    }
+                }
+            }
+        }
+        function getTypeOfDottedName(node, diagnostic) {
+            if (!(node.flags & 16777216)) {
+                switch (node.kind) {
+                    case 75:
+                        var symbol = getExportSymbolOfValueSymbolIfExported(getResolvedSymbol(node));
+                        return getExplicitTypeOfSymbol(symbol.flags & 2097152 ? resolveAlias(symbol) : symbol, diagnostic);
+                    case 104:
+                        return getExplicitThisType(node);
+                    case 102:
+                        return checkSuperExpression(node);
+                    case 194:
+                        var type = getTypeOfDottedName(node.expression, diagnostic);
+                        var prop = type && getPropertyOfType(type, node.name.escapedText);
+                        return prop && getExplicitTypeOfSymbol(prop, diagnostic);
+                    case 200:
+                        return getTypeOfDottedName(node.expression, diagnostic);
+                }
+            }
+        }
+        function getEffectsSignature(node) {
+            var links = getNodeLinks(node);
+            var signature = links.effectsSignature;
+            if (signature === undefined) {
+                var funcType = void 0;
+                if (node.parent.kind === 226) {
+                    funcType = getTypeOfDottedName(node.expression, undefined);
+                }
+                else if (node.expression.kind !== 102) {
+                    if (ts.isOptionalChain(node)) {
+                        funcType = checkNonNullType(getOptionalExpressionType(checkExpression(node.expression), node.expression), node.expression);
+                    }
+                    else {
+                        funcType = checkNonNullExpression(node.expression);
+                    }
+                }
+                var signatures = getSignaturesOfType(funcType && getApparentType(funcType) || unknownType, 0);
+                var candidate = signatures.length === 1 && !signatures[0].typeParameters ? signatures[0] :
+                    ts.some(signatures, hasTypePredicateOrNeverReturnType) ? getResolvedSignature(node) :
+                        undefined;
+                signature = links.effectsSignature = candidate && hasTypePredicateOrNeverReturnType(candidate) ? candidate : unknownSignature;
+            }
+            return signature === unknownSignature ? undefined : signature;
+        }
+        function hasTypePredicateOrNeverReturnType(signature) {
+            return !!(getTypePredicateOfSignature(signature) ||
+                signature.declaration && (getReturnTypeFromAnnotation(signature.declaration) || unknownType).flags & 131072);
+        }
+        function getTypePredicateArgument(predicate, callExpression) {
+            if (predicate.kind === 1 || predicate.kind === 3) {
+                return callExpression.arguments[predicate.parameterIndex];
+            }
+            var invokedExpression = ts.skipParentheses(callExpression.expression);
+            return ts.isAccessExpression(invokedExpression) ? ts.skipParentheses(invokedExpression.expression) : undefined;
+        }
+        function reportFlowControlError(node) {
+            var block = ts.findAncestor(node, ts.isFunctionOrModuleBlock);
+            var sourceFile = ts.getSourceFileOfNode(node);
+            var span = ts.getSpanOfTokenAtPosition(sourceFile, block.statements.pos);
+            diagnostics.add(ts.createFileDiagnostic(sourceFile, span.start, span.length, ts.Diagnostics.The_containing_function_or_module_body_is_too_large_for_control_flow_analysis));
+        }
+        function isReachableFlowNode(flow) {
+            var result = isReachableFlowNodeWorker(flow, false);
+            lastFlowNode = flow;
+            lastFlowNodeReachable = result;
+            return result;
+        }
+        function isFalseExpression(expr) {
+            var node = ts.skipParentheses(expr);
+            return node.kind === 91 || node.kind === 209 && (node.operatorToken.kind === 55 && (isFalseExpression(node.left) || isFalseExpression(node.right)) ||
+                node.operatorToken.kind === 56 && isFalseExpression(node.left) && isFalseExpression(node.right));
+        }
+        function isReachableFlowNodeWorker(flow, noCacheCheck) {
+            while (true) {
+                if (flow === lastFlowNode) {
+                    return lastFlowNodeReachable;
+                }
+                var flags = flow.flags;
+                if (flags & 4096) {
+                    if (!noCacheCheck) {
+                        var id = getFlowNodeId(flow);
+                        var reachable = flowNodeReachable[id];
+                        return reachable !== undefined ? reachable : (flowNodeReachable[id] = isReachableFlowNodeWorker(flow, true));
+                    }
+                    noCacheCheck = false;
+                }
+                if (flags & (16 | 96 | 256)) {
+                    flow = flow.antecedent;
+                }
+                else if (flags & 512) {
+                    var signature = getEffectsSignature(flow.node);
+                    if (signature) {
+                        var predicate = getTypePredicateOfSignature(signature);
+                        if (predicate && predicate.kind === 3) {
+                            var predicateArgument = flow.node.arguments[predicate.parameterIndex];
+                            if (predicateArgument && isFalseExpression(predicateArgument)) {
+                                return false;
+                            }
+                        }
+                        if (getReturnTypeOfSignature(signature).flags & 131072) {
+                            return false;
+                        }
+                    }
+                    flow = flow.antecedent;
+                }
+                else if (flags & 4) {
+                    return ts.some(flow.antecedents, function (f) { return isReachableFlowNodeWorker(f, false); });
+                }
+                else if (flags & 8) {
+                    flow = flow.antecedents[0];
+                }
+                else if (flags & 128) {
+                    if (flow.clauseStart === flow.clauseEnd && isExhaustiveSwitchStatement(flow.switchStatement)) {
+                        return false;
+                    }
+                    flow = flow.antecedent;
+                }
+                else if (flags & 1024) {
+                    lastFlowNode = undefined;
+                    var target = flow.target;
+                    var saveAntecedents = target.antecedents;
+                    target.antecedents = flow.antecedents;
+                    var result = isReachableFlowNodeWorker(flow.antecedent, false);
+                    target.antecedents = saveAntecedents;
+                    return result;
+                }
+                else {
+                    return !(flags & 1);
+                }
+            }
+        }
+        function getFlowTypeOfReference(reference, declaredType, initialType, flowContainer, couldBeUninitialized) {
+            if (initialType === void 0) { initialType = declaredType; }
+            var key;
+            var keySet = false;
+            var flowDepth = 0;
+            if (flowAnalysisDisabled) {
+                return errorType;
+            }
+            if (!reference.flowNode || !couldBeUninitialized && !(declaredType.flags & 133970943)) {
+                return declaredType;
+            }
+            flowInvocationCount++;
+            var sharedFlowStart = sharedFlowCount;
+            var evolvedType = getTypeFromFlowType(getTypeAtFlowNode(reference.flowNode));
+            sharedFlowCount = sharedFlowStart;
+            var resultType = ts.getObjectFlags(evolvedType) & 256 && isEvolvingArrayOperationTarget(reference) ? autoArrayType : finalizeEvolvingArrayType(evolvedType);
+            if (resultType === unreachableNeverType || reference.parent && reference.parent.kind === 218 && getTypeWithFacts(resultType, 2097152).flags & 131072) {
+                return declaredType;
+            }
+            return resultType;
+            function getOrSetCacheKey() {
+                if (keySet) {
+                    return key;
+                }
+                keySet = true;
+                return key = getFlowCacheKey(reference, declaredType, initialType, flowContainer);
+            }
+            function getTypeAtFlowNode(flow) {
+                if (flowDepth === 2000) {
+                    flowAnalysisDisabled = true;
+                    reportFlowControlError(reference);
+                    return errorType;
+                }
+                flowDepth++;
+                while (true) {
+                    var flags = flow.flags;
+                    if (flags & 4096) {
+                        for (var i = sharedFlowStart; i < sharedFlowCount; i++) {
+                            if (sharedFlowNodes[i] === flow) {
+                                flowDepth--;
+                                return sharedFlowTypes[i];
+                            }
+                        }
+                    }
+                    var type = void 0;
+                    if (flags & 16) {
+                        type = getTypeAtFlowAssignment(flow);
+                        if (!type) {
+                            flow = flow.antecedent;
+                            continue;
+                        }
+                    }
+                    else if (flags & 512) {
+                        type = getTypeAtFlowCall(flow);
+                        if (!type) {
+                            flow = flow.antecedent;
+                            continue;
+                        }
+                    }
+                    else if (flags & 96) {
+                        type = getTypeAtFlowCondition(flow);
+                    }
+                    else if (flags & 128) {
+                        type = getTypeAtSwitchClause(flow);
+                    }
+                    else if (flags & 12) {
+                        if (flow.antecedents.length === 1) {
+                            flow = flow.antecedents[0];
+                            continue;
+                        }
+                        type = flags & 4 ?
+                            getTypeAtFlowBranchLabel(flow) :
+                            getTypeAtFlowLoopLabel(flow);
+                    }
+                    else if (flags & 256) {
+                        type = getTypeAtFlowArrayMutation(flow);
+                        if (!type) {
+                            flow = flow.antecedent;
+                            continue;
+                        }
+                    }
+                    else if (flags & 1024) {
+                        var target = flow.target;
+                        var saveAntecedents = target.antecedents;
+                        target.antecedents = flow.antecedents;
+                        type = getTypeAtFlowNode(flow.antecedent);
+                        target.antecedents = saveAntecedents;
+                    }
+                    else if (flags & 2) {
+                        var container = flow.node;
+                        if (container && container !== flowContainer &&
+                            reference.kind !== 194 &&
+                            reference.kind !== 195 &&
+                            reference.kind !== 104) {
+                            flow = container.flowNode;
+                            continue;
+                        }
+                        type = initialType;
+                    }
+                    else {
+                        type = convertAutoToAny(declaredType);
+                    }
+                    if (flags & 4096) {
+                        sharedFlowNodes[sharedFlowCount] = flow;
+                        sharedFlowTypes[sharedFlowCount] = type;
+                        sharedFlowCount++;
+                    }
+                    flowDepth--;
+                    return type;
+                }
+            }
+            function getInitialOrAssignedType(flow) {
+                var node = flow.node;
+                return getConstraintForLocation(node.kind === 242 || node.kind === 191 ?
+                    getInitialType(node) :
+                    getAssignedType(node), reference);
+            }
+            function getTypeAtFlowAssignment(flow) {
+                var node = flow.node;
+                if (isMatchingReference(reference, node)) {
+                    if (!isReachableFlowNode(flow)) {
+                        return unreachableNeverType;
+                    }
+                    if (ts.getAssignmentTargetKind(node) === 2) {
+                        var flowType = getTypeAtFlowNode(flow.antecedent);
+                        return createFlowType(getBaseTypeOfLiteralType(getTypeFromFlowType(flowType)), isIncomplete(flowType));
+                    }
+                    if (declaredType === autoType || declaredType === autoArrayType) {
+                        if (isEmptyArrayAssignment(node)) {
+                            return getEvolvingArrayType(neverType);
+                        }
+                        var assignedType = getBaseTypeOfLiteralType(getInitialOrAssignedType(flow));
+                        return isTypeAssignableTo(assignedType, declaredType) ? assignedType : anyArrayType;
+                    }
+                    if (declaredType.flags & 1048576) {
+                        return getAssignmentReducedType(declaredType, getInitialOrAssignedType(flow));
+                    }
+                    return declaredType;
+                }
+                if (containsMatchingReference(reference, node)) {
+                    if (!isReachableFlowNode(flow)) {
+                        return unreachableNeverType;
+                    }
+                    if (ts.isVariableDeclaration(node) && (ts.isInJSFile(node) || ts.isVarConst(node))) {
+                        var init = ts.getDeclaredExpandoInitializer(node);
+                        if (init && (init.kind === 201 || init.kind === 202)) {
+                            return getTypeAtFlowNode(flow.antecedent);
+                        }
+                    }
+                    return declaredType;
+                }
+                if (ts.isVariableDeclaration(node) && node.parent.parent.kind === 231 && isMatchingReference(reference, node.parent.parent.expression)) {
+                    return getNonNullableTypeIfNeeded(getTypeFromFlowType(getTypeAtFlowNode(flow.antecedent)));
+                }
+                return undefined;
+            }
+            function narrowTypeByAssertion(type, expr) {
+                var node = ts.skipParentheses(expr);
+                if (node.kind === 91) {
+                    return unreachableNeverType;
+                }
+                if (node.kind === 209) {
+                    if (node.operatorToken.kind === 55) {
+                        return narrowTypeByAssertion(narrowTypeByAssertion(type, node.left), node.right);
+                    }
+                    if (node.operatorToken.kind === 56) {
+                        return getUnionType([narrowTypeByAssertion(type, node.left), narrowTypeByAssertion(type, node.right)]);
+                    }
+                }
+                return narrowType(type, node, true);
+            }
+            function getTypeAtFlowCall(flow) {
+                var signature = getEffectsSignature(flow.node);
+                if (signature) {
+                    var predicate = getTypePredicateOfSignature(signature);
+                    if (predicate && (predicate.kind === 2 || predicate.kind === 3)) {
+                        var flowType = getTypeAtFlowNode(flow.antecedent);
+                        var type = finalizeEvolvingArrayType(getTypeFromFlowType(flowType));
+                        var narrowedType = predicate.type ? narrowTypeByTypePredicate(type, predicate, flow.node, true) :
+                            predicate.kind === 3 && predicate.parameterIndex >= 0 && predicate.parameterIndex < flow.node.arguments.length ? narrowTypeByAssertion(type, flow.node.arguments[predicate.parameterIndex]) :
+                                type;
+                        return narrowedType === type ? flowType : createFlowType(narrowedType, isIncomplete(flowType));
+                    }
+                    if (getReturnTypeOfSignature(signature).flags & 131072) {
+                        return unreachableNeverType;
+                    }
+                }
+                return undefined;
+            }
+            function getTypeAtFlowArrayMutation(flow) {
+                if (declaredType === autoType || declaredType === autoArrayType) {
+                    var node = flow.node;
+                    var expr = node.kind === 196 ?
+                        node.expression.expression :
+                        node.left.expression;
+                    if (isMatchingReference(reference, getReferenceCandidate(expr))) {
+                        var flowType = getTypeAtFlowNode(flow.antecedent);
+                        var type = getTypeFromFlowType(flowType);
+                        if (ts.getObjectFlags(type) & 256) {
+                            var evolvedType_1 = type;
+                            if (node.kind === 196) {
+                                for (var _i = 0, _a = node.arguments; _i < _a.length; _i++) {
+                                    var arg = _a[_i];
+                                    evolvedType_1 = addEvolvingArrayElementType(evolvedType_1, arg);
+                                }
+                            }
+                            else {
+                                var indexType = getContextFreeTypeOfExpression(node.left.argumentExpression);
+                                if (isTypeAssignableToKind(indexType, 296)) {
+                                    evolvedType_1 = addEvolvingArrayElementType(evolvedType_1, node.right);
+                                }
+                            }
+                            return evolvedType_1 === type ? flowType : createFlowType(evolvedType_1, isIncomplete(flowType));
+                        }
+                        return flowType;
+                    }
+                }
+                return undefined;
+            }
+            function getTypeAtFlowCondition(flow) {
+                var flowType = getTypeAtFlowNode(flow.antecedent);
+                var type = getTypeFromFlowType(flowType);
+                if (type.flags & 131072) {
+                    return flowType;
+                }
+                var assumeTrue = (flow.flags & 32) !== 0;
+                var nonEvolvingType = finalizeEvolvingArrayType(type);
+                var narrowedType = narrowType(nonEvolvingType, flow.node, assumeTrue);
+                if (narrowedType === nonEvolvingType) {
+                    return flowType;
+                }
+                var incomplete = isIncomplete(flowType);
+                var resultType = incomplete && narrowedType.flags & 131072 ? silentNeverType : narrowedType;
+                return createFlowType(resultType, incomplete);
+            }
+            function getTypeAtSwitchClause(flow) {
+                var expr = flow.switchStatement.expression;
+                var flowType = getTypeAtFlowNode(flow.antecedent);
+                var type = getTypeFromFlowType(flowType);
+                if (isMatchingReference(reference, expr)) {
+                    type = narrowTypeBySwitchOnDiscriminant(type, flow.switchStatement, flow.clauseStart, flow.clauseEnd);
+                }
+                else if (expr.kind === 204 && isMatchingReference(reference, expr.expression)) {
+                    type = narrowBySwitchOnTypeOf(type, flow.switchStatement, flow.clauseStart, flow.clauseEnd);
+                }
+                else {
+                    if (strictNullChecks) {
+                        if (optionalChainContainsReference(expr, reference)) {
+                            type = narrowTypeBySwitchOptionalChainContainment(type, flow.switchStatement, flow.clauseStart, flow.clauseEnd, function (t) { return !(t.flags & (32768 | 131072)); });
+                        }
+                        else if (expr.kind === 204 && optionalChainContainsReference(expr.expression, reference)) {
+                            type = narrowTypeBySwitchOptionalChainContainment(type, flow.switchStatement, flow.clauseStart, flow.clauseEnd, function (t) { return !(t.flags & 131072 || t.flags & 128 && t.value === "undefined"); });
+                        }
+                    }
+                    if (isMatchingReferenceDiscriminant(expr, type)) {
+                        type = narrowTypeByDiscriminant(type, expr, function (t) { return narrowTypeBySwitchOnDiscriminant(t, flow.switchStatement, flow.clauseStart, flow.clauseEnd); });
+                    }
+                }
+                return createFlowType(type, isIncomplete(flowType));
+            }
+            function getTypeAtFlowBranchLabel(flow) {
+                var antecedentTypes = [];
+                var subtypeReduction = false;
+                var seenIncomplete = false;
+                var bypassFlow;
+                for (var _i = 0, _a = flow.antecedents; _i < _a.length; _i++) {
+                    var antecedent = _a[_i];
+                    if (!bypassFlow && antecedent.flags & 128 && antecedent.clauseStart === antecedent.clauseEnd) {
+                        bypassFlow = antecedent;
+                        continue;
+                    }
+                    var flowType = getTypeAtFlowNode(antecedent);
+                    var type = getTypeFromFlowType(flowType);
+                    if (type === declaredType && declaredType === initialType) {
+                        return type;
+                    }
+                    ts.pushIfUnique(antecedentTypes, type);
+                    if (!isTypeSubsetOf(type, declaredType)) {
+                        subtypeReduction = true;
+                    }
+                    if (isIncomplete(flowType)) {
+                        seenIncomplete = true;
+                    }
+                }
+                if (bypassFlow) {
+                    var flowType = getTypeAtFlowNode(bypassFlow);
+                    var type = getTypeFromFlowType(flowType);
+                    if (!ts.contains(antecedentTypes, type) && !isExhaustiveSwitchStatement(bypassFlow.switchStatement)) {
+                        if (type === declaredType && declaredType === initialType) {
+                            return type;
+                        }
+                        antecedentTypes.push(type);
+                        if (!isTypeSubsetOf(type, declaredType)) {
+                            subtypeReduction = true;
+                        }
+                        if (isIncomplete(flowType)) {
+                            seenIncomplete = true;
+                        }
+                    }
+                }
+                return createFlowType(getUnionOrEvolvingArrayType(antecedentTypes, subtypeReduction ? 2 : 1), seenIncomplete);
+            }
+            function getTypeAtFlowLoopLabel(flow) {
+                var id = getFlowNodeId(flow);
+                var cache = flowLoopCaches[id] || (flowLoopCaches[id] = ts.createMap());
+                var key = getOrSetCacheKey();
+                if (!key) {
+                    return declaredType;
+                }
+                var cached = cache.get(key);
+                if (cached) {
+                    return cached;
+                }
+                for (var i = flowLoopStart; i < flowLoopCount; i++) {
+                    if (flowLoopNodes[i] === flow && flowLoopKeys[i] === key && flowLoopTypes[i].length) {
+                        return createFlowType(getUnionOrEvolvingArrayType(flowLoopTypes[i], 1), true);
+                    }
+                }
+                var antecedentTypes = [];
+                var subtypeReduction = false;
+                var firstAntecedentType;
+                for (var _i = 0, _a = flow.antecedents; _i < _a.length; _i++) {
+                    var antecedent = _a[_i];
+                    var flowType = void 0;
+                    if (!firstAntecedentType) {
+                        flowType = firstAntecedentType = getTypeAtFlowNode(antecedent);
+                    }
+                    else {
+                        flowLoopNodes[flowLoopCount] = flow;
+                        flowLoopKeys[flowLoopCount] = key;
+                        flowLoopTypes[flowLoopCount] = antecedentTypes;
+                        flowLoopCount++;
+                        var saveFlowTypeCache = flowTypeCache;
+                        flowTypeCache = undefined;
+                        flowType = getTypeAtFlowNode(antecedent);
+                        flowTypeCache = saveFlowTypeCache;
+                        flowLoopCount--;
+                        var cached_1 = cache.get(key);
+                        if (cached_1) {
+                            return cached_1;
+                        }
+                    }
+                    var type = getTypeFromFlowType(flowType);
+                    ts.pushIfUnique(antecedentTypes, type);
+                    if (!isTypeSubsetOf(type, declaredType)) {
+                        subtypeReduction = true;
+                    }
+                    if (type === declaredType) {
+                        break;
+                    }
+                }
+                var result = getUnionOrEvolvingArrayType(antecedentTypes, subtypeReduction ? 2 : 1);
+                if (isIncomplete(firstAntecedentType)) {
+                    return createFlowType(result, true);
+                }
+                cache.set(key, result);
+                return result;
+            }
+            function isMatchingReferenceDiscriminant(expr, computedType) {
+                if (!(computedType.flags & 1048576) || !ts.isAccessExpression(expr)) {
+                    return false;
+                }
+                var name = getAccessedPropertyName(expr);
+                if (name === undefined) {
+                    return false;
+                }
+                return isMatchingReference(reference, expr.expression) && isDiscriminantProperty(computedType, name);
+            }
+            function narrowTypeByDiscriminant(type, access, narrowType) {
+                var propName = getAccessedPropertyName(access);
+                if (propName === undefined) {
+                    return type;
+                }
+                var propType = getTypeOfPropertyOfType(type, propName);
+                if (!propType) {
+                    return type;
+                }
+                var narrowedPropType = narrowType(propType);
+                return filterType(type, function (t) {
+                    var discriminantType = getTypeOfPropertyOrIndexSignature(t, propName);
+                    return !(discriminantType.flags & 131072) && isTypeComparableTo(discriminantType, narrowedPropType);
+                });
+            }
+            function narrowTypeByTruthiness(type, expr, assumeTrue) {
+                if (isMatchingReference(reference, expr)) {
+                    return getTypeWithFacts(type, assumeTrue ? 4194304 : 8388608);
+                }
+                if (strictNullChecks && assumeTrue && optionalChainContainsReference(expr, reference)) {
+                    type = getTypeWithFacts(type, 2097152);
+                }
+                if (isMatchingReferenceDiscriminant(expr, declaredType)) {
+                    return narrowTypeByDiscriminant(type, expr, function (t) { return getTypeWithFacts(t, assumeTrue ? 4194304 : 8388608); });
+                }
+                return type;
+            }
+            function isTypePresencePossible(type, propName, assumeTrue) {
+                if (getIndexInfoOfType(type, 0)) {
+                    return true;
+                }
+                var prop = getPropertyOfType(type, propName);
+                if (prop) {
+                    return prop.flags & 16777216 ? true : assumeTrue;
+                }
+                return !assumeTrue;
+            }
+            function narrowByInKeyword(type, literal, assumeTrue) {
+                if (type.flags & (1048576 | 524288) || isThisTypeParameter(type)) {
+                    var propName_1 = ts.escapeLeadingUnderscores(literal.text);
+                    return filterType(type, function (t) { return isTypePresencePossible(t, propName_1, assumeTrue); });
+                }
+                return type;
+            }
+            function narrowTypeByBinaryExpression(type, expr, assumeTrue) {
+                switch (expr.operatorToken.kind) {
+                    case 62:
+                        return narrowTypeByTruthiness(narrowType(type, expr.right, assumeTrue), expr.left, assumeTrue);
+                    case 34:
+                    case 35:
+                    case 36:
+                    case 37:
+                        var operator_1 = expr.operatorToken.kind;
+                        var left_1 = getReferenceCandidate(expr.left);
+                        var right_1 = getReferenceCandidate(expr.right);
+                        if (left_1.kind === 204 && ts.isStringLiteralLike(right_1)) {
+                            return narrowTypeByTypeof(type, left_1, operator_1, right_1, assumeTrue);
+                        }
+                        if (right_1.kind === 204 && ts.isStringLiteralLike(left_1)) {
+                            return narrowTypeByTypeof(type, right_1, operator_1, left_1, assumeTrue);
+                        }
+                        if (isMatchingReference(reference, left_1)) {
+                            return narrowTypeByEquality(type, operator_1, right_1, assumeTrue);
+                        }
+                        if (isMatchingReference(reference, right_1)) {
+                            return narrowTypeByEquality(type, operator_1, left_1, assumeTrue);
+                        }
+                        if (strictNullChecks) {
+                            if (optionalChainContainsReference(left_1, reference)) {
+                                type = narrowTypeByOptionalChainContainment(type, operator_1, right_1, assumeTrue);
+                            }
+                            else if (optionalChainContainsReference(right_1, reference)) {
+                                type = narrowTypeByOptionalChainContainment(type, operator_1, left_1, assumeTrue);
+                            }
+                        }
+                        if (isMatchingReferenceDiscriminant(left_1, declaredType)) {
+                            return narrowTypeByDiscriminant(type, left_1, function (t) { return narrowTypeByEquality(t, operator_1, right_1, assumeTrue); });
+                        }
+                        if (isMatchingReferenceDiscriminant(right_1, declaredType)) {
+                            return narrowTypeByDiscriminant(type, right_1, function (t) { return narrowTypeByEquality(t, operator_1, left_1, assumeTrue); });
+                        }
+                        if (isMatchingConstructorReference(left_1)) {
+                            return narrowTypeByConstructor(type, operator_1, right_1, assumeTrue);
+                        }
+                        if (isMatchingConstructorReference(right_1)) {
+                            return narrowTypeByConstructor(type, operator_1, left_1, assumeTrue);
+                        }
+                        break;
+                    case 98:
+                        return narrowTypeByInstanceof(type, expr, assumeTrue);
+                    case 97:
+                        var target = getReferenceCandidate(expr.right);
+                        if (ts.isStringLiteralLike(expr.left) && isMatchingReference(reference, target)) {
+                            return narrowByInKeyword(type, expr.left, assumeTrue);
+                        }
+                        break;
+                    case 27:
+                        return narrowType(type, expr.right, assumeTrue);
+                }
+                return type;
+            }
+            function narrowTypeByOptionalChainContainment(type, operator, value, assumeTrue) {
+                var equalsOperator = operator === 34 || operator === 36;
+                var nullableFlags = operator === 34 || operator === 35 ? 98304 : 32768;
+                var valueType = getTypeOfExpression(value);
+                var removeNullable = equalsOperator !== assumeTrue && everyType(valueType, function (t) { return !!(t.flags & nullableFlags); }) ||
+                    equalsOperator === assumeTrue && everyType(valueType, function (t) { return !(t.flags & (3 | nullableFlags)); });
+                return removeNullable ? getTypeWithFacts(type, 2097152) : type;
+            }
+            function narrowTypeByEquality(type, operator, value, assumeTrue) {
+                if (type.flags & 1) {
+                    return type;
+                }
+                if (operator === 35 || operator === 37) {
+                    assumeTrue = !assumeTrue;
+                }
+                var valueType = getTypeOfExpression(value);
+                if ((type.flags & 2) && assumeTrue && (operator === 36 || operator === 37)) {
+                    if (valueType.flags & (131068 | 67108864)) {
+                        return valueType;
+                    }
+                    if (valueType.flags & 524288) {
+                        return nonPrimitiveType;
+                    }
+                    return type;
+                }
+                if (valueType.flags & 98304) {
+                    if (!strictNullChecks) {
+                        return type;
+                    }
+                    var doubleEquals = operator === 34 || operator === 35;
+                    var facts = doubleEquals ?
+                        assumeTrue ? 262144 : 2097152 :
+                        valueType.flags & 65536 ?
+                            assumeTrue ? 131072 : 1048576 :
+                            assumeTrue ? 65536 : 524288;
+                    return getTypeWithFacts(type, facts);
+                }
+                if (type.flags & 67637251) {
+                    return type;
+                }
+                if (assumeTrue) {
+                    var filterFn = operator === 34 ?
+                        (function (t) { return areTypesComparable(t, valueType) || isCoercibleUnderDoubleEquals(t, valueType); }) :
+                        function (t) { return areTypesComparable(t, valueType); };
+                    var narrowedType = filterType(type, filterFn);
+                    return narrowedType.flags & 131072 ? type : replacePrimitivesWithLiterals(narrowedType, valueType);
+                }
+                if (isUnitType(valueType)) {
+                    var regularType_1 = getRegularTypeOfLiteralType(valueType);
+                    return filterType(type, function (t) { return isUnitType(t) ? !areTypesComparable(t, valueType) : getRegularTypeOfLiteralType(t) !== regularType_1; });
+                }
+                return type;
+            }
+            function narrowTypeByTypeof(type, typeOfExpr, operator, literal, assumeTrue) {
+                if (operator === 35 || operator === 37) {
+                    assumeTrue = !assumeTrue;
+                }
+                var target = getReferenceCandidate(typeOfExpr.expression);
+                if (!isMatchingReference(reference, target)) {
+                    if (strictNullChecks && optionalChainContainsReference(target, reference) && assumeTrue === (literal.text !== "undefined")) {
+                        return getTypeWithFacts(type, 2097152);
+                    }
+                    return type;
+                }
+                if (type.flags & 1 && literal.text === "function") {
+                    return type;
+                }
+                if (assumeTrue && type.flags & 2 && literal.text === "object") {
+                    if (typeOfExpr.parent.parent.kind === 209) {
+                        var expr = typeOfExpr.parent.parent;
+                        if (expr.operatorToken.kind === 55 && expr.right === typeOfExpr.parent && containsTruthyCheck(reference, expr.left)) {
+                            return nonPrimitiveType;
+                        }
+                    }
+                    return getUnionType([nonPrimitiveType, nullType]);
+                }
+                var facts = assumeTrue ?
+                    typeofEQFacts.get(literal.text) || 128 :
+                    typeofNEFacts.get(literal.text) || 32768;
+                return getTypeWithFacts(assumeTrue ? mapType(type, narrowTypeForTypeof) : type, facts);
+                function narrowTypeForTypeof(type) {
+                    var targetType = literal.text === "function" ? globalFunctionType : typeofTypesByName.get(literal.text);
+                    if (targetType) {
+                        if (isTypeSubtypeOf(type, targetType)) {
+                            return type;
+                        }
+                        if (isTypeSubtypeOf(targetType, type)) {
+                            return targetType;
+                        }
+                        if (type.flags & 63176704) {
+                            var constraint = getBaseConstraintOfType(type) || anyType;
+                            if (isTypeSubtypeOf(targetType, constraint)) {
+                                return getIntersectionType([type, targetType]);
+                            }
+                        }
+                    }
+                    return type;
+                }
+            }
+            function narrowTypeBySwitchOptionalChainContainment(type, switchStatement, clauseStart, clauseEnd, clauseCheck) {
+                var everyClauseChecks = clauseStart !== clauseEnd && ts.every(getSwitchClauseTypes(switchStatement).slice(clauseStart, clauseEnd), clauseCheck);
+                return everyClauseChecks ? getTypeWithFacts(type, 2097152) : type;
+            }
+            function narrowTypeBySwitchOnDiscriminant(type, switchStatement, clauseStart, clauseEnd) {
+                var switchTypes = getSwitchClauseTypes(switchStatement);
+                if (!switchTypes.length) {
+                    return type;
+                }
+                var clauseTypes = switchTypes.slice(clauseStart, clauseEnd);
+                var hasDefaultClause = clauseStart === clauseEnd || ts.contains(clauseTypes, neverType);
+                if ((type.flags & 2) && !hasDefaultClause) {
+                    var groundClauseTypes = void 0;
+                    for (var i = 0; i < clauseTypes.length; i += 1) {
+                        var t = clauseTypes[i];
+                        if (t.flags & (131068 | 67108864)) {
+                            if (groundClauseTypes !== undefined) {
+                                groundClauseTypes.push(t);
+                            }
+                        }
+                        else if (t.flags & 524288) {
+                            if (groundClauseTypes === undefined) {
+                                groundClauseTypes = clauseTypes.slice(0, i);
+                            }
+                            groundClauseTypes.push(nonPrimitiveType);
+                        }
+                        else {
+                            return type;
+                        }
+                    }
+                    return getUnionType(groundClauseTypes === undefined ? clauseTypes : groundClauseTypes);
+                }
+                var discriminantType = getUnionType(clauseTypes);
+                var caseType = discriminantType.flags & 131072 ? neverType :
+                    replacePrimitivesWithLiterals(filterType(type, function (t) { return areTypesComparable(discriminantType, t); }), discriminantType);
+                if (!hasDefaultClause) {
+                    return caseType;
+                }
+                var defaultType = filterType(type, function (t) { return !(isUnitType(t) && ts.contains(switchTypes, getRegularTypeOfLiteralType(t))); });
+                return caseType.flags & 131072 ? defaultType : getUnionType([caseType, defaultType]);
+            }
+            function getImpliedTypeFromTypeofCase(type, text) {
+                switch (text) {
+                    case "function":
+                        return type.flags & 1 ? type : globalFunctionType;
+                    case "object":
+                        return type.flags & 2 ? getUnionType([nonPrimitiveType, nullType]) : type;
+                    default:
+                        return typeofTypesByName.get(text) || type;
+                }
+            }
+            function narrowTypeForTypeofSwitch(candidate) {
+                return function (type) {
+                    if (isTypeSubtypeOf(candidate, type)) {
+                        return candidate;
+                    }
+                    if (type.flags & 63176704) {
+                        var constraint = getBaseConstraintOfType(type) || anyType;
+                        if (isTypeSubtypeOf(candidate, constraint)) {
+                            return getIntersectionType([type, candidate]);
+                        }
+                    }
+                    return type;
+                };
+            }
+            function narrowBySwitchOnTypeOf(type, switchStatement, clauseStart, clauseEnd) {
+                var switchWitnesses = getSwitchClauseTypeOfWitnesses(switchStatement, true);
+                if (!switchWitnesses.length) {
+                    return type;
+                }
+                var defaultCaseLocation = ts.findIndex(switchWitnesses, function (elem) { return elem === undefined; });
+                var hasDefaultClause = clauseStart === clauseEnd || (defaultCaseLocation >= clauseStart && defaultCaseLocation < clauseEnd);
+                var clauseWitnesses;
+                var switchFacts;
+                if (defaultCaseLocation > -1) {
+                    var witnesses = switchWitnesses.filter(function (witness) { return witness !== undefined; });
+                    var fixedClauseStart = defaultCaseLocation < clauseStart ? clauseStart - 1 : clauseStart;
+                    var fixedClauseEnd = defaultCaseLocation < clauseEnd ? clauseEnd - 1 : clauseEnd;
+                    clauseWitnesses = witnesses.slice(fixedClauseStart, fixedClauseEnd);
+                    switchFacts = getFactsFromTypeofSwitch(fixedClauseStart, fixedClauseEnd, witnesses, hasDefaultClause);
+                }
+                else {
+                    clauseWitnesses = switchWitnesses.slice(clauseStart, clauseEnd);
+                    switchFacts = getFactsFromTypeofSwitch(clauseStart, clauseEnd, switchWitnesses, hasDefaultClause);
+                }
+                if (hasDefaultClause) {
+                    return filterType(type, function (t) { return (getTypeFacts(t) & switchFacts) === switchFacts; });
+                }
+                var impliedType = getTypeWithFacts(getUnionType(clauseWitnesses.map(function (text) { return getImpliedTypeFromTypeofCase(type, text); })), switchFacts);
+                if (impliedType.flags & 1048576) {
+                    impliedType = getAssignmentReducedType(impliedType, getBaseConstraintOrType(type));
+                }
+                return getTypeWithFacts(mapType(type, narrowTypeForTypeofSwitch(impliedType)), switchFacts);
+            }
+            function isMatchingConstructorReference(expr) {
+                return (ts.isPropertyAccessExpression(expr) && ts.idText(expr.name) === "constructor" ||
+                    ts.isElementAccessExpression(expr) && ts.isStringLiteralLike(expr.argumentExpression) && expr.argumentExpression.text === "constructor") &&
+                    isMatchingReference(reference, expr.expression);
+            }
+            function narrowTypeByConstructor(type, operator, identifier, assumeTrue) {
+                if (assumeTrue ? (operator !== 34 && operator !== 36) : (operator !== 35 && operator !== 37)) {
+                    return type;
+                }
+                var identifierType = getTypeOfExpression(identifier);
+                if (!isFunctionType(identifierType) && !isConstructorType(identifierType)) {
+                    return type;
+                }
+                var prototypeProperty = getPropertyOfType(identifierType, "prototype");
+                if (!prototypeProperty) {
+                    return type;
+                }
+                var prototypeType = getTypeOfSymbol(prototypeProperty);
+                var candidate = !isTypeAny(prototypeType) ? prototypeType : undefined;
+                if (!candidate || candidate === globalObjectType || candidate === globalFunctionType) {
+                    return type;
+                }
+                if (isTypeAny(type)) {
+                    return candidate;
+                }
+                return filterType(type, function (t) { return isConstructedBy(t, candidate); });
+                function isConstructedBy(source, target) {
+                    if (source.flags & 524288 && ts.getObjectFlags(source) & 1 ||
+                        target.flags & 524288 && ts.getObjectFlags(target) & 1) {
+                        return source.symbol === target.symbol;
+                    }
+                    return isTypeSubtypeOf(source, target);
+                }
+            }
+            function narrowTypeByInstanceof(type, expr, assumeTrue) {
+                var left = getReferenceCandidate(expr.left);
+                if (!isMatchingReference(reference, left)) {
+                    if (assumeTrue && strictNullChecks && optionalChainContainsReference(left, reference)) {
+                        return getTypeWithFacts(type, 2097152);
+                    }
+                    return type;
+                }
+                var rightType = getTypeOfExpression(expr.right);
+                if (!isTypeDerivedFrom(rightType, globalFunctionType)) {
+                    return type;
+                }
+                var targetType;
+                var prototypeProperty = getPropertyOfType(rightType, "prototype");
+                if (prototypeProperty) {
+                    var prototypePropertyType = getTypeOfSymbol(prototypeProperty);
+                    if (!isTypeAny(prototypePropertyType)) {
+                        targetType = prototypePropertyType;
+                    }
+                }
+                if (isTypeAny(type) && (targetType === globalObjectType || targetType === globalFunctionType)) {
+                    return type;
+                }
+                if (!targetType) {
+                    var constructSignatures = getSignaturesOfType(rightType, 1);
+                    targetType = constructSignatures.length ?
+                        getUnionType(ts.map(constructSignatures, function (signature) { return getReturnTypeOfSignature(getErasedSignature(signature)); })) :
+                        emptyObjectType;
+                }
+                return getNarrowedType(type, targetType, assumeTrue, isTypeDerivedFrom);
+            }
+            function getNarrowedType(type, candidate, assumeTrue, isRelated) {
+                if (!assumeTrue) {
+                    return filterType(type, function (t) { return !isRelated(t, candidate); });
+                }
+                if (type.flags & 1048576) {
+                    var assignableType = filterType(type, function (t) { return isRelated(t, candidate); });
+                    if (!(assignableType.flags & 131072)) {
+                        return assignableType;
+                    }
+                }
+                return isTypeSubtypeOf(candidate, type) ? candidate :
+                    isTypeAssignableTo(type, candidate) ? type :
+                        isTypeAssignableTo(candidate, type) ? candidate :
+                            getIntersectionType([type, candidate]);
+            }
+            function narrowTypeByCallExpression(type, callExpression, assumeTrue) {
+                if (hasMatchingArgument(callExpression, reference)) {
+                    var signature = assumeTrue || !ts.isCallChain(callExpression) ? getEffectsSignature(callExpression) : undefined;
+                    var predicate = signature && getTypePredicateOfSignature(signature);
+                    if (predicate && (predicate.kind === 0 || predicate.kind === 1)) {
+                        return narrowTypeByTypePredicate(type, predicate, callExpression, assumeTrue);
+                    }
+                }
+                return type;
+            }
+            function narrowTypeByTypePredicate(type, predicate, callExpression, assumeTrue) {
+                if (predicate.type && !(isTypeAny(type) && (predicate.type === globalObjectType || predicate.type === globalFunctionType))) {
+                    var predicateArgument = getTypePredicateArgument(predicate, callExpression);
+                    if (predicateArgument) {
+                        if (isMatchingReference(reference, predicateArgument)) {
+                            return getNarrowedType(type, predicate.type, assumeTrue, isTypeSubtypeOf);
+                        }
+                        if (strictNullChecks && assumeTrue && optionalChainContainsReference(predicateArgument, reference) &&
+                            !(getTypeFacts(predicate.type) & 65536)) {
+                            type = getTypeWithFacts(type, 2097152);
+                        }
+                        if (isMatchingReferenceDiscriminant(predicateArgument, declaredType)) {
+                            return narrowTypeByDiscriminant(type, predicateArgument, function (t) { return getNarrowedType(t, predicate.type, assumeTrue, isTypeSubtypeOf); });
+                        }
+                    }
+                }
+                return type;
+            }
+            function narrowType(type, expr, assumeTrue) {
+                if (ts.isExpressionOfOptionalChainRoot(expr) ||
+                    ts.isBinaryExpression(expr.parent) && expr.parent.operatorToken.kind === 60 && expr.parent.left === expr) {
+                    return narrowTypeByOptionality(type, expr, assumeTrue);
+                }
+                switch (expr.kind) {
+                    case 75:
+                    case 104:
+                    case 102:
+                    case 194:
+                    case 195:
+                        return narrowTypeByTruthiness(type, expr, assumeTrue);
+                    case 196:
+                        return narrowTypeByCallExpression(type, expr, assumeTrue);
+                    case 200:
+                        return narrowType(type, expr.expression, assumeTrue);
+                    case 209:
+                        return narrowTypeByBinaryExpression(type, expr, assumeTrue);
+                    case 207:
+                        if (expr.operator === 53) {
+                            return narrowType(type, expr.operand, !assumeTrue);
+                        }
+                        break;
+                }
+                return type;
+            }
+            function narrowTypeByOptionality(type, expr, assumePresent) {
+                if (isMatchingReference(reference, expr)) {
+                    return getTypeWithFacts(type, assumePresent ? 2097152 : 262144);
+                }
+                if (isMatchingReferenceDiscriminant(expr, declaredType)) {
+                    return narrowTypeByDiscriminant(type, expr, function (t) { return getTypeWithFacts(t, assumePresent ? 2097152 : 262144); });
+                }
+                return type;
+            }
+        }
+        function getTypeOfSymbolAtLocation(symbol, location) {
+            symbol = symbol.exportSymbol || symbol;
+            if (location.kind === 75) {
+                if (ts.isRightSideOfQualifiedNameOrPropertyAccess(location)) {
+                    location = location.parent;
+                }
+                if (ts.isExpressionNode(location) && !ts.isAssignmentTarget(location)) {
+                    var type = getTypeOfExpression(location);
+                    if (getExportSymbolOfValueSymbolIfExported(getNodeLinks(location).resolvedSymbol) === symbol) {
+                        return type;
+                    }
+                }
+            }
+            return getTypeOfSymbol(symbol);
+        }
+        function getControlFlowContainer(node) {
+            return ts.findAncestor(node.parent, function (node) {
+                return ts.isFunctionLike(node) && !ts.getImmediatelyInvokedFunctionExpression(node) ||
+                    node.kind === 250 ||
+                    node.kind === 290 ||
+                    node.kind === 159;
+            });
+        }
+        function isParameterAssigned(symbol) {
+            var func = ts.getRootDeclaration(symbol.valueDeclaration).parent;
+            var links = getNodeLinks(func);
+            if (!(links.flags & 8388608)) {
+                links.flags |= 8388608;
+                if (!hasParentWithAssignmentsMarked(func)) {
+                    markParameterAssignments(func);
+                }
+            }
+            return symbol.isAssigned || false;
+        }
+        function hasParentWithAssignmentsMarked(node) {
+            return !!ts.findAncestor(node.parent, function (node) { return ts.isFunctionLike(node) && !!(getNodeLinks(node).flags & 8388608); });
+        }
+        function markParameterAssignments(node) {
+            if (node.kind === 75) {
+                if (ts.isAssignmentTarget(node)) {
+                    var symbol = getResolvedSymbol(node);
+                    if (symbol.valueDeclaration && ts.getRootDeclaration(symbol.valueDeclaration).kind === 156) {
+                        symbol.isAssigned = true;
+                    }
+                }
+            }
+            else {
+                ts.forEachChild(node, markParameterAssignments);
+            }
+        }
+        function isConstVariable(symbol) {
+            return symbol.flags & 3 && (getDeclarationNodeFlagsFromSymbol(symbol) & 2) !== 0 && getTypeOfSymbol(symbol) !== autoArrayType;
+        }
+        function removeOptionalityFromDeclaredType(declaredType, declaration) {
+            if (pushTypeResolution(declaration.symbol, 2)) {
+                var annotationIncludesUndefined = strictNullChecks &&
+                    declaration.kind === 156 &&
+                    declaration.initializer &&
+                    getFalsyFlags(declaredType) & 32768 &&
+                    !(getFalsyFlags(checkExpression(declaration.initializer)) & 32768);
+                popTypeResolution();
+                return annotationIncludesUndefined ? getTypeWithFacts(declaredType, 524288) : declaredType;
+            }
+            else {
+                reportCircularityError(declaration.symbol);
+                return declaredType;
+            }
+        }
+        function isConstraintPosition(node) {
+            var parent = node.parent;
+            return parent.kind === 194 ||
+                parent.kind === 196 && parent.expression === node ||
+                parent.kind === 195 && parent.expression === node ||
+                parent.kind === 191 && parent.name === node && !!parent.initializer;
+        }
+        function typeHasNullableConstraint(type) {
+            return type.flags & 58982400 && maybeTypeOfKind(getBaseConstraintOfType(type) || unknownType, 98304);
+        }
+        function getConstraintForLocation(type, node) {
+            if (type && isConstraintPosition(node) && forEachType(type, typeHasNullableConstraint)) {
+                return mapType(getWidenedType(type), getBaseConstraintOrType);
+            }
+            return type;
+        }
+        function isExportOrExportExpression(location) {
+            return !!ts.findAncestor(location, function (e) { return e.parent && ts.isExportAssignment(e.parent) && e.parent.expression === e && ts.isEntityNameExpression(e); });
+        }
+        function markAliasReferenced(symbol, location) {
+            if (isNonLocalAlias(symbol, 111551) && !isInTypeQuery(location) && !getTypeOnlyAliasDeclaration(symbol)) {
+                if (compilerOptions.preserveConstEnums && isExportOrExportExpression(location) || !isConstEnumOrConstEnumOnlyModule(resolveAlias(symbol))) {
+                    markAliasSymbolAsReferenced(symbol);
+                }
+                else {
+                    markConstEnumAliasAsReferenced(symbol);
+                }
+            }
+        }
+        function checkIdentifier(node) {
+            var symbol = getResolvedSymbol(node);
+            if (symbol === unknownSymbol) {
+                return errorType;
+            }
+            if (symbol === argumentsSymbol) {
+                var container = ts.getContainingFunction(node);
+                if (languageVersion < 2) {
+                    if (container.kind === 202) {
+                        error(node, ts.Diagnostics.The_arguments_object_cannot_be_referenced_in_an_arrow_function_in_ES3_and_ES5_Consider_using_a_standard_function_expression);
+                    }
+                    else if (ts.hasModifier(container, 256)) {
+                        error(node, ts.Diagnostics.The_arguments_object_cannot_be_referenced_in_an_async_function_or_method_in_ES3_and_ES5_Consider_using_a_standard_function_or_method);
+                    }
+                }
+                getNodeLinks(container).flags |= 8192;
+                return getTypeOfSymbol(symbol);
+            }
+            if (!(node.parent && ts.isPropertyAccessExpression(node.parent) && node.parent.expression === node)) {
+                markAliasReferenced(symbol, node);
+            }
+            var localOrExportSymbol = getExportSymbolOfValueSymbolIfExported(symbol);
+            var declaration = localOrExportSymbol.valueDeclaration;
+            if (localOrExportSymbol.flags & 32) {
+                if (declaration.kind === 245
+                    && ts.nodeIsDecorated(declaration)) {
+                    var container = ts.getContainingClass(node);
+                    while (container !== undefined) {
+                        if (container === declaration && container.name !== node) {
+                            getNodeLinks(declaration).flags |= 16777216;
+                            getNodeLinks(node).flags |= 33554432;
+                            break;
+                        }
+                        container = ts.getContainingClass(container);
+                    }
+                }
+                else if (declaration.kind === 214) {
+                    var container = ts.getThisContainer(node, false);
+                    while (container.kind !== 290) {
+                        if (container.parent === declaration) {
+                            if (container.kind === 159 && ts.hasModifier(container, 32)) {
+                                getNodeLinks(declaration).flags |= 16777216;
+                                getNodeLinks(node).flags |= 33554432;
+                            }
+                            break;
+                        }
+                        container = ts.getThisContainer(container, false);
+                    }
+                }
+            }
+            checkNestedBlockScopedBinding(node, symbol);
+            var type = getConstraintForLocation(getTypeOfSymbol(localOrExportSymbol), node);
+            var assignmentKind = ts.getAssignmentTargetKind(node);
+            if (assignmentKind) {
+                if (!(localOrExportSymbol.flags & 3) &&
+                    !(ts.isInJSFile(node) && localOrExportSymbol.flags & 512)) {
+                    error(node, ts.Diagnostics.Cannot_assign_to_0_because_it_is_not_a_variable, symbolToString(symbol));
+                    return errorType;
+                }
+                if (isReadonlySymbol(localOrExportSymbol)) {
+                    if (localOrExportSymbol.flags & 3) {
+                        error(node, ts.Diagnostics.Cannot_assign_to_0_because_it_is_a_constant, symbolToString(symbol));
+                    }
+                    else {
+                        error(node, ts.Diagnostics.Cannot_assign_to_0_because_it_is_a_read_only_property, symbolToString(symbol));
+                    }
+                    return errorType;
+                }
+            }
+            var isAlias = localOrExportSymbol.flags & 2097152;
+            if (localOrExportSymbol.flags & 3) {
+                if (assignmentKind === 1) {
+                    return type;
+                }
+            }
+            else if (isAlias) {
+                declaration = ts.find(symbol.declarations, isSomeImportDeclaration);
+            }
+            else {
+                return type;
+            }
+            if (!declaration) {
+                return type;
+            }
+            var isParameter = ts.getRootDeclaration(declaration).kind === 156;
+            var declarationContainer = getControlFlowContainer(declaration);
+            var flowContainer = getControlFlowContainer(node);
+            var isOuterVariable = flowContainer !== declarationContainer;
+            var isSpreadDestructuringAssignmentTarget = node.parent && node.parent.parent && ts.isSpreadAssignment(node.parent) && isDestructuringAssignmentTarget(node.parent.parent);
+            var isModuleExports = symbol.flags & 134217728;
+            while (flowContainer !== declarationContainer && (flowContainer.kind === 201 ||
+                flowContainer.kind === 202 || ts.isObjectLiteralOrClassExpressionMethod(flowContainer)) &&
+                (isConstVariable(localOrExportSymbol) || isParameter && !isParameterAssigned(localOrExportSymbol))) {
+                flowContainer = getControlFlowContainer(flowContainer);
+            }
+            var assumeInitialized = isParameter || isAlias || isOuterVariable || isSpreadDestructuringAssignmentTarget || isModuleExports || ts.isBindingElement(declaration) ||
+                type !== autoType && type !== autoArrayType && (!strictNullChecks || (type.flags & (3 | 16384)) !== 0 ||
+                    isInTypeQuery(node) || node.parent.kind === 263) ||
+                node.parent.kind === 218 ||
+                declaration.kind === 242 && declaration.exclamationToken ||
+                declaration.flags & 8388608;
+            var initialType = assumeInitialized ? (isParameter ? removeOptionalityFromDeclaredType(type, declaration) : type) :
+                type === autoType || type === autoArrayType ? undefinedType :
+                    getOptionalType(type);
+            var flowType = getFlowTypeOfReference(node, type, initialType, flowContainer, !assumeInitialized);
+            if (!isEvolvingArrayOperationTarget(node) && (type === autoType || type === autoArrayType)) {
+                if (flowType === autoType || flowType === autoArrayType) {
+                    if (noImplicitAny) {
+                        error(ts.getNameOfDeclaration(declaration), ts.Diagnostics.Variable_0_implicitly_has_type_1_in_some_locations_where_its_type_cannot_be_determined, symbolToString(symbol), typeToString(flowType));
+                        error(node, ts.Diagnostics.Variable_0_implicitly_has_an_1_type, symbolToString(symbol), typeToString(flowType));
+                    }
+                    return convertAutoToAny(flowType);
+                }
+            }
+            else if (!assumeInitialized && !(getFalsyFlags(type) & 32768) && getFalsyFlags(flowType) & 32768) {
+                error(node, ts.Diagnostics.Variable_0_is_used_before_being_assigned, symbolToString(symbol));
+                return type;
+            }
+            return assignmentKind ? getBaseTypeOfLiteralType(flowType) : flowType;
+        }
+        function isInsideFunction(node, threshold) {
+            return !!ts.findAncestor(node, function (n) { return n === threshold ? "quit" : ts.isFunctionLike(n); });
+        }
+        function getPartOfForStatementContainingNode(node, container) {
+            return ts.findAncestor(node, function (n) { return n === container ? "quit" : n === container.initializer || n === container.condition || n === container.incrementor || n === container.statement; });
+        }
+        function checkNestedBlockScopedBinding(node, symbol) {
+            if (languageVersion >= 2 ||
+                (symbol.flags & (2 | 32)) === 0 ||
+                ts.isSourceFile(symbol.valueDeclaration) ||
+                symbol.valueDeclaration.parent.kind === 280) {
+                return;
+            }
+            var container = ts.getEnclosingBlockScopeContainer(symbol.valueDeclaration);
+            var usedInFunction = isInsideFunction(node.parent, container);
+            var current = container;
+            var containedInIterationStatement = false;
+            while (current && !ts.nodeStartsNewLexicalEnvironment(current)) {
+                if (ts.isIterationStatement(current, false)) {
+                    containedInIterationStatement = true;
+                    break;
+                }
+                current = current.parent;
+            }
+            if (containedInIterationStatement) {
+                if (usedInFunction) {
+                    var capturesBlockScopeBindingInLoopBody = true;
+                    if (ts.isForStatement(container)) {
+                        var varDeclList = ts.getAncestor(symbol.valueDeclaration, 243);
+                        if (varDeclList && varDeclList.parent === container) {
+                            var part = getPartOfForStatementContainingNode(node.parent, container);
+                            if (part) {
+                                var links = getNodeLinks(part);
+                                links.flags |= 131072;
+                                var capturedBindings = links.capturedBlockScopeBindings || (links.capturedBlockScopeBindings = []);
+                                ts.pushIfUnique(capturedBindings, symbol);
+                                if (part === container.initializer) {
+                                    capturesBlockScopeBindingInLoopBody = false;
+                                }
+                            }
+                        }
+                    }
+                    if (capturesBlockScopeBindingInLoopBody) {
+                        getNodeLinks(current).flags |= 65536;
+                    }
+                }
+                if (ts.isForStatement(container)) {
+                    var varDeclList = ts.getAncestor(symbol.valueDeclaration, 243);
+                    if (varDeclList && varDeclList.parent === container && isAssignedInBodyOfForStatement(node, container)) {
+                        getNodeLinks(symbol.valueDeclaration).flags |= 4194304;
+                    }
+                }
+                getNodeLinks(symbol.valueDeclaration).flags |= 524288;
+            }
+            if (usedInFunction) {
+                getNodeLinks(symbol.valueDeclaration).flags |= 262144;
+            }
+        }
+        function isBindingCapturedByNode(node, decl) {
+            var links = getNodeLinks(node);
+            return !!links && ts.contains(links.capturedBlockScopeBindings, getSymbolOfNode(decl));
+        }
+        function isAssignedInBodyOfForStatement(node, container) {
+            var current = node;
+            while (current.parent.kind === 200) {
+                current = current.parent;
+            }
+            var isAssigned = false;
+            if (ts.isAssignmentTarget(current)) {
+                isAssigned = true;
+            }
+            else if ((current.parent.kind === 207 || current.parent.kind === 208)) {
+                var expr = current.parent;
+                isAssigned = expr.operator === 45 || expr.operator === 46;
+            }
+            if (!isAssigned) {
+                return false;
+            }
+            return !!ts.findAncestor(current, function (n) { return n === container ? "quit" : n === container.statement; });
+        }
+        function captureLexicalThis(node, container) {
+            getNodeLinks(node).flags |= 2;
+            if (container.kind === 159 || container.kind === 162) {
+                var classNode = container.parent;
+                getNodeLinks(classNode).flags |= 4;
+            }
+            else {
+                getNodeLinks(container).flags |= 4;
+            }
+        }
+        function findFirstSuperCall(n) {
+            if (ts.isSuperCall(n)) {
+                return n;
+            }
+            else if (ts.isFunctionLike(n)) {
+                return undefined;
+            }
+            return ts.forEachChild(n, findFirstSuperCall);
+        }
+        function getSuperCallInConstructor(constructor) {
+            var links = getNodeLinks(constructor);
+            if (links.hasSuperCall === undefined) {
+                links.superCall = findFirstSuperCall(constructor.body);
+                links.hasSuperCall = links.superCall ? true : false;
+            }
+            return links.superCall;
+        }
+        function classDeclarationExtendsNull(classDecl) {
+            var classSymbol = getSymbolOfNode(classDecl);
+            var classInstanceType = getDeclaredTypeOfSymbol(classSymbol);
+            var baseConstructorType = getBaseConstructorTypeOfClass(classInstanceType);
+            return baseConstructorType === nullWideningType;
+        }
+        function checkThisBeforeSuper(node, container, diagnosticMessage) {
+            var containingClassDecl = container.parent;
+            var baseTypeNode = ts.getClassExtendsHeritageElement(containingClassDecl);
+            if (baseTypeNode && !classDeclarationExtendsNull(containingClassDecl)) {
+                var superCall = getSuperCallInConstructor(container);
+                if (!superCall || superCall.end > node.pos) {
+                    error(node, diagnosticMessage);
+                }
+            }
+        }
+        function checkThisExpression(node) {
+            var container = ts.getThisContainer(node, true);
+            var capturedByArrowFunction = false;
+            if (container.kind === 162) {
+                checkThisBeforeSuper(node, container, ts.Diagnostics.super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class);
+            }
+            if (container.kind === 202) {
+                container = ts.getThisContainer(container, false);
+                capturedByArrowFunction = true;
+            }
+            switch (container.kind) {
+                case 249:
+                    error(node, ts.Diagnostics.this_cannot_be_referenced_in_a_module_or_namespace_body);
+                    break;
+                case 248:
+                    error(node, ts.Diagnostics.this_cannot_be_referenced_in_current_location);
+                    break;
+                case 162:
+                    if (isInConstructorArgumentInitializer(node, container)) {
+                        error(node, ts.Diagnostics.this_cannot_be_referenced_in_constructor_arguments);
+                    }
+                    break;
+                case 159:
+                case 158:
+                    if (ts.hasModifier(container, 32) && !(compilerOptions.target === 99 && compilerOptions.useDefineForClassFields)) {
+                        error(node, ts.Diagnostics.this_cannot_be_referenced_in_a_static_property_initializer);
+                    }
+                    break;
+                case 154:
+                    error(node, ts.Diagnostics.this_cannot_be_referenced_in_a_computed_property_name);
+                    break;
+            }
+            if (capturedByArrowFunction && languageVersion < 2) {
+                captureLexicalThis(node, container);
+            }
+            var type = tryGetThisTypeAt(node, true, container);
+            if (noImplicitThis) {
+                var globalThisType_1 = getTypeOfSymbol(globalThisSymbol);
+                if (type === globalThisType_1 && capturedByArrowFunction) {
+                    error(node, ts.Diagnostics.The_containing_arrow_function_captures_the_global_value_of_this);
+                }
+                else if (!type) {
+                    var diag = error(node, ts.Diagnostics.this_implicitly_has_type_any_because_it_does_not_have_a_type_annotation);
+                    if (!ts.isSourceFile(container)) {
+                        var outsideThis = tryGetThisTypeAt(container);
+                        if (outsideThis && outsideThis !== globalThisType_1) {
+                            ts.addRelatedInfo(diag, ts.createDiagnosticForNode(container, ts.Diagnostics.An_outer_value_of_this_is_shadowed_by_this_container));
+                        }
+                    }
+                }
+            }
+            return type || anyType;
+        }
+        function tryGetThisTypeAt(node, includeGlobalThis, container) {
+            if (includeGlobalThis === void 0) { includeGlobalThis = true; }
+            if (container === void 0) { container = ts.getThisContainer(node, false); }
+            var isInJS = ts.isInJSFile(node);
+            if (ts.isFunctionLike(container) &&
+                (!isInParameterInitializerBeforeContainingFunction(node) || ts.getThisParameter(container))) {
+                var className = getClassNameFromPrototypeMethod(container);
+                if (isInJS && className) {
+                    var classSymbol = checkExpression(className).symbol;
+                    if (classSymbol && classSymbol.members && (classSymbol.flags & 16)) {
+                        var classType = getDeclaredTypeOfSymbol(classSymbol).thisType;
+                        if (classType) {
+                            return getFlowTypeOfReference(node, classType);
+                        }
+                    }
+                }
+                else if (isInJS &&
+                    (container.kind === 201 || container.kind === 244) &&
+                    ts.getJSDocClassTag(container)) {
+                    var classType = getDeclaredTypeOfSymbol(getMergedSymbol(container.symbol)).thisType;
+                    return getFlowTypeOfReference(node, classType);
+                }
+                var thisType = getThisTypeOfDeclaration(container) || getContextualThisParameterType(container);
+                if (thisType) {
+                    return getFlowTypeOfReference(node, thisType);
+                }
+            }
+            if (ts.isClassLike(container.parent)) {
+                var symbol = getSymbolOfNode(container.parent);
+                var type = ts.hasModifier(container, 32) ? getTypeOfSymbol(symbol) : getDeclaredTypeOfSymbol(symbol).thisType;
+                return getFlowTypeOfReference(node, type);
+            }
+            if (isInJS) {
+                var type = getTypeForThisExpressionFromJSDoc(container);
+                if (type && type !== errorType) {
+                    return getFlowTypeOfReference(node, type);
+                }
+            }
+            if (ts.isSourceFile(container)) {
+                if (container.commonJsModuleIndicator) {
+                    var fileSymbol = getSymbolOfNode(container);
+                    return fileSymbol && getTypeOfSymbol(fileSymbol);
+                }
+                else if (includeGlobalThis) {
+                    return getTypeOfSymbol(globalThisSymbol);
+                }
+            }
+        }
+        function getExplicitThisType(node) {
+            var container = ts.getThisContainer(node, false);
+            if (ts.isFunctionLike(container)) {
+                var signature = getSignatureFromDeclaration(container);
+                if (signature.thisParameter) {
+                    return getExplicitTypeOfSymbol(signature.thisParameter);
+                }
+            }
+            if (ts.isClassLike(container.parent)) {
+                var symbol = getSymbolOfNode(container.parent);
+                return ts.hasModifier(container, 32) ? getTypeOfSymbol(symbol) : getDeclaredTypeOfSymbol(symbol).thisType;
+            }
+        }
+        function getClassNameFromPrototypeMethod(container) {
+            if (container.kind === 201 &&
+                ts.isBinaryExpression(container.parent) &&
+                ts.getAssignmentDeclarationKind(container.parent) === 3) {
+                return container.parent
+                    .left
+                    .expression
+                    .expression;
+            }
+            else if (container.kind === 161 &&
+                container.parent.kind === 193 &&
+                ts.isBinaryExpression(container.parent.parent) &&
+                ts.getAssignmentDeclarationKind(container.parent.parent) === 6) {
+                return container.parent.parent.left.expression;
+            }
+            else if (container.kind === 201 &&
+                container.parent.kind === 281 &&
+                container.parent.parent.kind === 193 &&
+                ts.isBinaryExpression(container.parent.parent.parent) &&
+                ts.getAssignmentDeclarationKind(container.parent.parent.parent) === 6) {
+                return container.parent.parent.parent.left.expression;
+            }
+            else if (container.kind === 201 &&
+                ts.isPropertyAssignment(container.parent) &&
+                ts.isIdentifier(container.parent.name) &&
+                (container.parent.name.escapedText === "value" || container.parent.name.escapedText === "get" || container.parent.name.escapedText === "set") &&
+                ts.isObjectLiteralExpression(container.parent.parent) &&
+                ts.isCallExpression(container.parent.parent.parent) &&
+                container.parent.parent.parent.arguments[2] === container.parent.parent &&
+                ts.getAssignmentDeclarationKind(container.parent.parent.parent) === 9) {
+                return container.parent.parent.parent.arguments[0].expression;
+            }
+            else if (ts.isMethodDeclaration(container) &&
+                ts.isIdentifier(container.name) &&
+                (container.name.escapedText === "value" || container.name.escapedText === "get" || container.name.escapedText === "set") &&
+                ts.isObjectLiteralExpression(container.parent) &&
+                ts.isCallExpression(container.parent.parent) &&
+                container.parent.parent.arguments[2] === container.parent &&
+                ts.getAssignmentDeclarationKind(container.parent.parent) === 9) {
+                return container.parent.parent.arguments[0].expression;
+            }
+        }
+        function getTypeForThisExpressionFromJSDoc(node) {
+            var jsdocType = ts.getJSDocType(node);
+            if (jsdocType && jsdocType.kind === 300) {
+                var jsDocFunctionType = jsdocType;
+                if (jsDocFunctionType.parameters.length > 0 &&
+                    jsDocFunctionType.parameters[0].name &&
+                    jsDocFunctionType.parameters[0].name.escapedText === "this") {
+                    return getTypeFromTypeNode(jsDocFunctionType.parameters[0].type);
+                }
+            }
+            var thisTag = ts.getJSDocThisTag(node);
+            if (thisTag && thisTag.typeExpression) {
+                return getTypeFromTypeNode(thisTag.typeExpression);
+            }
+        }
+        function isInConstructorArgumentInitializer(node, constructorDecl) {
+            return !!ts.findAncestor(node, function (n) { return ts.isFunctionLikeDeclaration(n) ? "quit" : n.kind === 156 && n.parent === constructorDecl; });
+        }
+        function checkSuperExpression(node) {
+            var isCallExpression = node.parent.kind === 196 && node.parent.expression === node;
+            var container = ts.getSuperContainer(node, true);
+            var needToCaptureLexicalThis = false;
+            if (!isCallExpression) {
+                while (container && container.kind === 202) {
+                    container = ts.getSuperContainer(container, true);
+                    needToCaptureLexicalThis = languageVersion < 2;
+                }
+            }
+            var canUseSuperExpression = isLegalUsageOfSuperExpression(container);
+            var nodeCheckFlag = 0;
+            if (!canUseSuperExpression) {
+                var current = ts.findAncestor(node, function (n) { return n === container ? "quit" : n.kind === 154; });
+                if (current && current.kind === 154) {
+                    error(node, ts.Diagnostics.super_cannot_be_referenced_in_a_computed_property_name);
+                }
+                else if (isCallExpression) {
+                    error(node, ts.Diagnostics.Super_calls_are_not_permitted_outside_constructors_or_in_nested_functions_inside_constructors);
+                }
+                else if (!container || !container.parent || !(ts.isClassLike(container.parent) || container.parent.kind === 193)) {
+                    error(node, ts.Diagnostics.super_can_only_be_referenced_in_members_of_derived_classes_or_object_literal_expressions);
+                }
+                else {
+                    error(node, ts.Diagnostics.super_property_access_is_permitted_only_in_a_constructor_member_function_or_member_accessor_of_a_derived_class);
+                }
+                return errorType;
+            }
+            if (!isCallExpression && container.kind === 162) {
+                checkThisBeforeSuper(node, container, ts.Diagnostics.super_must_be_called_before_accessing_a_property_of_super_in_the_constructor_of_a_derived_class);
+            }
+            if (ts.hasModifier(container, 32) || isCallExpression) {
+                nodeCheckFlag = 512;
+            }
+            else {
+                nodeCheckFlag = 256;
+            }
+            getNodeLinks(node).flags |= nodeCheckFlag;
+            if (container.kind === 161 && ts.hasModifier(container, 256)) {
+                if (ts.isSuperProperty(node.parent) && ts.isAssignmentTarget(node.parent)) {
+                    getNodeLinks(container).flags |= 4096;
+                }
+                else {
+                    getNodeLinks(container).flags |= 2048;
+                }
+            }
+            if (needToCaptureLexicalThis) {
+                captureLexicalThis(node.parent, container);
+            }
+            if (container.parent.kind === 193) {
+                if (languageVersion < 2) {
+                    error(node, ts.Diagnostics.super_is_only_allowed_in_members_of_object_literal_expressions_when_option_target_is_ES2015_or_higher);
+                    return errorType;
+                }
+                else {
+                    return anyType;
+                }
+            }
+            var classLikeDeclaration = container.parent;
+            if (!ts.getClassExtendsHeritageElement(classLikeDeclaration)) {
+                error(node, ts.Diagnostics.super_can_only_be_referenced_in_a_derived_class);
+                return errorType;
+            }
+            var classType = getDeclaredTypeOfSymbol(getSymbolOfNode(classLikeDeclaration));
+            var baseClassType = classType && getBaseTypes(classType)[0];
+            if (!baseClassType) {
+                return errorType;
+            }
+            if (container.kind === 162 && isInConstructorArgumentInitializer(node, container)) {
+                error(node, ts.Diagnostics.super_cannot_be_referenced_in_constructor_arguments);
+                return errorType;
+            }
+            return nodeCheckFlag === 512
+                ? getBaseConstructorTypeOfClass(classType)
+                : getTypeWithThisArgument(baseClassType, classType.thisType);
+            function isLegalUsageOfSuperExpression(container) {
+                if (!container) {
+                    return false;
+                }
+                if (isCallExpression) {
+                    return container.kind === 162;
+                }
+                else {
+                    if (ts.isClassLike(container.parent) || container.parent.kind === 193) {
+                        if (ts.hasModifier(container, 32)) {
+                            return container.kind === 161 ||
+                                container.kind === 160 ||
+                                container.kind === 163 ||
+                                container.kind === 164;
+                        }
+                        else {
+                            return container.kind === 161 ||
+                                container.kind === 160 ||
+                                container.kind === 163 ||
+                                container.kind === 164 ||
+                                container.kind === 159 ||
+                                container.kind === 158 ||
+                                container.kind === 162;
+                        }
+                    }
+                }
+                return false;
+            }
+        }
+        function getContainingObjectLiteral(func) {
+            return (func.kind === 161 ||
+                func.kind === 163 ||
+                func.kind === 164) && func.parent.kind === 193 ? func.parent :
+                func.kind === 201 && func.parent.kind === 281 ? func.parent.parent :
+                    undefined;
+        }
+        function getThisTypeArgument(type) {
+            return ts.getObjectFlags(type) & 4 && type.target === globalThisType ? getTypeArguments(type)[0] : undefined;
+        }
+        function getThisTypeFromContextualType(type) {
+            return mapType(type, function (t) {
+                return t.flags & 2097152 ? ts.forEach(t.types, getThisTypeArgument) : getThisTypeArgument(t);
+            });
+        }
+        function getContextualThisParameterType(func) {
+            if (func.kind === 202) {
+                return undefined;
+            }
+            if (isContextSensitiveFunctionOrObjectLiteralMethod(func)) {
+                var contextualSignature = getContextualSignature(func);
+                if (contextualSignature) {
+                    var thisParameter = contextualSignature.thisParameter;
+                    if (thisParameter) {
+                        return getTypeOfSymbol(thisParameter);
+                    }
+                }
+            }
+            var inJs = ts.isInJSFile(func);
+            if (noImplicitThis || inJs) {
+                var containingLiteral = getContainingObjectLiteral(func);
+                if (containingLiteral) {
+                    var contextualType = getApparentTypeOfContextualType(containingLiteral);
+                    var literal = containingLiteral;
+                    var type = contextualType;
+                    while (type) {
+                        var thisType = getThisTypeFromContextualType(type);
+                        if (thisType) {
+                            return instantiateType(thisType, getMapperFromContext(getInferenceContext(containingLiteral)));
+                        }
+                        if (literal.parent.kind !== 281) {
+                            break;
+                        }
+                        literal = literal.parent.parent;
+                        type = getApparentTypeOfContextualType(literal);
+                    }
+                    return getWidenedType(contextualType ? getNonNullableType(contextualType) : checkExpressionCached(containingLiteral));
+                }
+                var parent = ts.walkUpParenthesizedExpressions(func.parent);
+                if (parent.kind === 209 && parent.operatorToken.kind === 62) {
+                    var target = parent.left;
+                    if (ts.isAccessExpression(target)) {
+                        var expression = target.expression;
+                        if (inJs && ts.isIdentifier(expression)) {
+                            var sourceFile = ts.getSourceFileOfNode(parent);
+                            if (sourceFile.commonJsModuleIndicator && getResolvedSymbol(expression) === sourceFile.symbol) {
+                                return undefined;
+                            }
+                        }
+                        return getWidenedType(checkExpressionCached(expression));
+                    }
+                }
+            }
+            return undefined;
+        }
+        function getContextuallyTypedParameterType(parameter) {
+            var func = parameter.parent;
+            if (!isContextSensitiveFunctionOrObjectLiteralMethod(func)) {
+                return undefined;
+            }
+            var iife = ts.getImmediatelyInvokedFunctionExpression(func);
+            if (iife && iife.arguments) {
+                var args = getEffectiveCallArguments(iife);
+                var indexOfParameter = func.parameters.indexOf(parameter);
+                if (parameter.dotDotDotToken) {
+                    return getSpreadArgumentType(args, indexOfParameter, args.length, anyType, undefined);
+                }
+                var links = getNodeLinks(iife);
+                var cached = links.resolvedSignature;
+                links.resolvedSignature = anySignature;
+                var type = indexOfParameter < args.length ?
+                    getWidenedLiteralType(checkExpression(args[indexOfParameter])) :
+                    parameter.initializer ? undefined : undefinedWideningType;
+                links.resolvedSignature = cached;
+                return type;
+            }
+            var contextualSignature = getContextualSignature(func);
+            if (contextualSignature) {
+                var index = func.parameters.indexOf(parameter) - (ts.getThisParameter(func) ? 1 : 0);
+                return parameter.dotDotDotToken && ts.lastOrUndefined(func.parameters) === parameter ?
+                    getRestTypeAtPosition(contextualSignature, index) :
+                    tryGetTypeAtPosition(contextualSignature, index);
+            }
+        }
+        function getContextualTypeForVariableLikeDeclaration(declaration) {
+            var typeNode = ts.getEffectiveTypeAnnotationNode(declaration);
+            if (typeNode) {
+                return getTypeFromTypeNode(typeNode);
+            }
+            switch (declaration.kind) {
+                case 156:
+                    return getContextuallyTypedParameterType(declaration);
+                case 191:
+                    return getContextualTypeForBindingElement(declaration);
+            }
+        }
+        function getContextualTypeForBindingElement(declaration) {
+            var parent = declaration.parent.parent;
+            var name = declaration.propertyName || declaration.name;
+            var parentType = getContextualTypeForVariableLikeDeclaration(parent) ||
+                parent.kind !== 191 && parent.initializer && checkDeclarationInitializer(parent);
+            if (parentType && !ts.isBindingPattern(name) && !ts.isComputedNonLiteralName(name)) {
+                var nameType = getLiteralTypeFromPropertyName(name);
+                if (isTypeUsableAsPropertyName(nameType)) {
+                    var text = getPropertyNameFromType(nameType);
+                    return getTypeOfPropertyOfType(parentType, text);
+                }
+            }
+        }
+        function getContextualTypeForInitializerExpression(node) {
+            var declaration = node.parent;
+            if (ts.hasInitializer(declaration) && node === declaration.initializer) {
+                var result = getContextualTypeForVariableLikeDeclaration(declaration);
+                if (result) {
+                    return result;
+                }
+                if (ts.isBindingPattern(declaration.name)) {
+                    return getTypeFromBindingPattern(declaration.name, true, false);
+                }
+            }
+            return undefined;
+        }
+        function getContextualTypeForReturnExpression(node) {
+            var func = ts.getContainingFunction(node);
+            if (func) {
+                var functionFlags = ts.getFunctionFlags(func);
+                if (functionFlags & 1) {
+                    return undefined;
+                }
+                var contextualReturnType = getContextualReturnType(func);
+                if (contextualReturnType) {
+                    if (functionFlags & 2) {
+                        var contextualAwaitedType = mapType(contextualReturnType, getAwaitedTypeOfPromise);
+                        return contextualAwaitedType && getUnionType([contextualAwaitedType, createPromiseLikeType(contextualAwaitedType)]);
+                    }
+                    return contextualReturnType;
+                }
+            }
+            return undefined;
+        }
+        function getContextualTypeForAwaitOperand(node) {
+            var contextualType = getContextualType(node);
+            if (contextualType) {
+                var contextualAwaitedType = getAwaitedType(contextualType);
+                return contextualAwaitedType && getUnionType([contextualAwaitedType, createPromiseLikeType(contextualAwaitedType)]);
+            }
+            return undefined;
+        }
+        function getContextualTypeForYieldOperand(node) {
+            var func = ts.getContainingFunction(node);
+            if (func) {
+                var functionFlags = ts.getFunctionFlags(func);
+                var contextualReturnType = getContextualReturnType(func);
+                if (contextualReturnType) {
+                    return node.asteriskToken
+                        ? contextualReturnType
+                        : getIterationTypeOfGeneratorFunctionReturnType(0, contextualReturnType, (functionFlags & 2) !== 0);
+                }
+            }
+            return undefined;
+        }
+        function isInParameterInitializerBeforeContainingFunction(node) {
+            var inBindingInitializer = false;
+            while (node.parent && !ts.isFunctionLike(node.parent)) {
+                if (ts.isParameter(node.parent) && (inBindingInitializer || node.parent.initializer === node)) {
+                    return true;
+                }
+                if (ts.isBindingElement(node.parent) && node.parent.initializer === node) {
+                    inBindingInitializer = true;
+                }
+                node = node.parent;
+            }
+            return false;
+        }
+        function getContextualIterationType(kind, functionDecl) {
+            var isAsync = !!(ts.getFunctionFlags(functionDecl) & 2);
+            var contextualReturnType = getContextualReturnType(functionDecl);
+            if (contextualReturnType) {
+                return getIterationTypeOfGeneratorFunctionReturnType(kind, contextualReturnType, isAsync)
+                    || undefined;
+            }
+            return undefined;
+        }
+        function getContextualReturnType(functionDecl) {
+            var returnType = getReturnTypeFromAnnotation(functionDecl);
+            if (returnType) {
+                return returnType;
+            }
+            var signature = getContextualSignatureForFunctionLikeDeclaration(functionDecl);
+            if (signature && !isResolvingReturnTypeOfSignature(signature)) {
+                return getReturnTypeOfSignature(signature);
+            }
+            return undefined;
+        }
+        function getContextualTypeForArgument(callTarget, arg) {
+            var args = getEffectiveCallArguments(callTarget);
+            var argIndex = args.indexOf(arg);
+            return argIndex === -1 ? undefined : getContextualTypeForArgumentAtIndex(callTarget, argIndex);
+        }
+        function getContextualTypeForArgumentAtIndex(callTarget, argIndex) {
+            var signature = getNodeLinks(callTarget).resolvedSignature === resolvingSignature ? resolvingSignature : getResolvedSignature(callTarget);
+            if (ts.isJsxOpeningLikeElement(callTarget) && argIndex === 0) {
+                return getEffectiveFirstArgumentForJsxSignature(signature, callTarget);
+            }
+            return getTypeAtPosition(signature, argIndex);
+        }
+        function getContextualTypeForSubstitutionExpression(template, substitutionExpression) {
+            if (template.parent.kind === 198) {
+                return getContextualTypeForArgument(template.parent, substitutionExpression);
+            }
+            return undefined;
+        }
+        function getContextualTypeForBinaryOperand(node, contextFlags) {
+            var binaryExpression = node.parent;
+            var left = binaryExpression.left, operatorToken = binaryExpression.operatorToken, right = binaryExpression.right;
+            switch (operatorToken.kind) {
+                case 62:
+                    if (node !== right) {
+                        return undefined;
+                    }
+                    var contextSensitive = getIsContextSensitiveAssignmentOrContextType(binaryExpression);
+                    if (!contextSensitive) {
+                        return undefined;
+                    }
+                    return contextSensitive === true ? getTypeOfExpression(left) : contextSensitive;
+                case 56:
+                case 60:
+                    var type = getContextualType(binaryExpression, contextFlags);
+                    return node === right && (type && type.pattern || !type && !ts.isDefaultedExpandoInitializer(binaryExpression)) ?
+                        getTypeOfExpression(left) : type;
+                case 55:
+                case 27:
+                    return node === right ? getContextualType(binaryExpression, contextFlags) : undefined;
+                default:
+                    return undefined;
+            }
+        }
+        function getIsContextSensitiveAssignmentOrContextType(binaryExpression) {
+            var kind = ts.getAssignmentDeclarationKind(binaryExpression);
+            switch (kind) {
+                case 0:
+                    return true;
+                case 5:
+                case 1:
+                case 6:
+                case 3:
+                    if (!binaryExpression.left.symbol) {
+                        return true;
+                    }
+                    else {
+                        var decl = binaryExpression.left.symbol.valueDeclaration;
+                        if (!decl) {
+                            return false;
+                        }
+                        var lhs = ts.cast(binaryExpression.left, ts.isAccessExpression);
+                        var overallAnnotation = ts.getEffectiveTypeAnnotationNode(decl);
+                        if (overallAnnotation) {
+                            return getTypeFromTypeNode(overallAnnotation);
+                        }
+                        else if (ts.isIdentifier(lhs.expression)) {
+                            var id = lhs.expression;
+                            var parentSymbol = resolveName(id, id.escapedText, 111551, undefined, id.escapedText, true);
+                            if (parentSymbol) {
+                                var annotated = ts.getEffectiveTypeAnnotationNode(parentSymbol.valueDeclaration);
+                                if (annotated) {
+                                    var nameStr_1 = ts.getElementOrPropertyAccessName(lhs);
+                                    if (nameStr_1 !== undefined) {
+                                        var type = getTypeOfPropertyOfContextualType(getTypeFromTypeNode(annotated), nameStr_1);
+                                        return type || false;
+                                    }
+                                }
+                                return false;
+                            }
+                        }
+                        return !ts.isInJSFile(decl);
+                    }
+                case 2:
+                case 4:
+                    if (!binaryExpression.symbol)
+                        return true;
+                    if (binaryExpression.symbol.valueDeclaration) {
+                        var annotated = ts.getEffectiveTypeAnnotationNode(binaryExpression.symbol.valueDeclaration);
+                        if (annotated) {
+                            var type = getTypeFromTypeNode(annotated);
+                            if (type) {
+                                return type;
+                            }
+                        }
+                    }
+                    if (kind === 2)
+                        return false;
+                    var thisAccess = ts.cast(binaryExpression.left, ts.isAccessExpression);
+                    if (!ts.isObjectLiteralMethod(ts.getThisContainer(thisAccess.expression, false))) {
+                        return false;
+                    }
+                    var thisType = checkThisExpression(thisAccess.expression);
+                    var nameStr = ts.getElementOrPropertyAccessName(thisAccess);
+                    return nameStr !== undefined && thisType && getTypeOfPropertyOfContextualType(thisType, nameStr) || false;
+                case 7:
+                case 8:
+                case 9:
+                    return ts.Debug.fail("Does not apply");
+                default:
+                    return ts.Debug.assertNever(kind);
+            }
+        }
+        function getTypeOfPropertyOfContextualType(type, name) {
+            return mapType(type, function (t) {
+                if (isGenericMappedType(t)) {
+                    var constraint = getConstraintTypeFromMappedType(t);
+                    var constraintOfConstraint = getBaseConstraintOfType(constraint) || constraint;
+                    var propertyNameType = getLiteralType(ts.unescapeLeadingUnderscores(name));
+                    if (isTypeAssignableTo(propertyNameType, constraintOfConstraint)) {
+                        return substituteIndexedMappedType(t, propertyNameType);
+                    }
+                }
+                else if (t.flags & 3670016) {
+                    var prop = getPropertyOfType(t, name);
+                    if (prop) {
+                        return getTypeOfSymbol(prop);
+                    }
+                    if (isTupleType(t)) {
+                        var restType = getRestTypeOfTupleType(t);
+                        if (restType && isNumericLiteralName(name) && +name >= 0) {
+                            return restType;
+                        }
+                    }
+                    return isNumericLiteralName(name) && getIndexTypeOfContextualType(t, 1) ||
+                        getIndexTypeOfContextualType(t, 0);
+                }
+                return undefined;
+            }, true);
+        }
+        function getIndexTypeOfContextualType(type, kind) {
+            return mapType(type, function (t) { return getIndexTypeOfStructuredType(t, kind); }, true);
+        }
+        function getContextualTypeForObjectLiteralMethod(node, contextFlags) {
+            ts.Debug.assert(ts.isObjectLiteralMethod(node));
+            if (node.flags & 16777216) {
+                return undefined;
+            }
+            return getContextualTypeForObjectLiteralElement(node, contextFlags);
+        }
+        function getContextualTypeForObjectLiteralElement(element, contextFlags) {
+            var objectLiteral = element.parent;
+            var type = getApparentTypeOfContextualType(objectLiteral, contextFlags);
+            if (type) {
+                if (!hasNonBindableDynamicName(element)) {
+                    var symbolName_3 = getSymbolOfNode(element).escapedName;
+                    var propertyType = getTypeOfPropertyOfContextualType(type, symbolName_3);
+                    if (propertyType) {
+                        return propertyType;
+                    }
+                }
+                return isNumericName(element.name) && getIndexTypeOfContextualType(type, 1) ||
+                    getIndexTypeOfContextualType(type, 0);
+            }
+            return undefined;
+        }
+        function getContextualTypeForElementExpression(arrayContextualType, index) {
+            return arrayContextualType && (getTypeOfPropertyOfContextualType(arrayContextualType, "" + index)
+                || getIteratedTypeOrElementType(1, arrayContextualType, undefinedType, undefined, false));
+        }
+        function getContextualTypeForConditionalOperand(node, contextFlags) {
+            var conditional = node.parent;
+            return node === conditional.whenTrue || node === conditional.whenFalse ? getContextualType(conditional, contextFlags) : undefined;
+        }
+        function getContextualTypeForChildJsxExpression(node, child) {
+            var attributesType = getApparentTypeOfContextualType(node.openingElement.tagName);
+            var jsxChildrenPropertyName = getJsxElementChildrenPropertyName(getJsxNamespaceAt(node));
+            if (!(attributesType && !isTypeAny(attributesType) && jsxChildrenPropertyName && jsxChildrenPropertyName !== "")) {
+                return undefined;
+            }
+            var realChildren = getSemanticJsxChildren(node.children);
+            var childIndex = realChildren.indexOf(child);
+            var childFieldType = getTypeOfPropertyOfContextualType(attributesType, jsxChildrenPropertyName);
+            return childFieldType && (realChildren.length === 1 ? childFieldType : mapType(childFieldType, function (t) {
+                if (isArrayLikeType(t)) {
+                    return getIndexedAccessType(t, getLiteralType(childIndex));
+                }
+                else {
+                    return t;
+                }
+            }, true));
+        }
+        function getContextualTypeForJsxExpression(node) {
+            var exprParent = node.parent;
+            return ts.isJsxAttributeLike(exprParent)
+                ? getContextualType(node)
+                : ts.isJsxElement(exprParent)
+                    ? getContextualTypeForChildJsxExpression(exprParent, node)
+                    : undefined;
+        }
+        function getContextualTypeForJsxAttribute(attribute) {
+            if (ts.isJsxAttribute(attribute)) {
+                var attributesType = getApparentTypeOfContextualType(attribute.parent);
+                if (!attributesType || isTypeAny(attributesType)) {
+                    return undefined;
+                }
+                return getTypeOfPropertyOfContextualType(attributesType, attribute.name.escapedText);
+            }
+            else {
+                return getContextualType(attribute.parent);
+            }
+        }
+        function isPossiblyDiscriminantValue(node) {
+            switch (node.kind) {
+                case 10:
+                case 8:
+                case 9:
+                case 14:
+                case 106:
+                case 91:
+                case 100:
+                case 75:
+                case 146:
+                    return true;
+                case 194:
+                case 200:
+                    return isPossiblyDiscriminantValue(node.expression);
+                case 276:
+                    return !node.expression || isPossiblyDiscriminantValue(node.expression);
+            }
+            return false;
+        }
+        function discriminateContextualTypeByObjectMembers(node, contextualType) {
+            return discriminateTypeByDiscriminableItems(contextualType, ts.map(ts.filter(node.properties, function (p) { return !!p.symbol && p.kind === 281 && isPossiblyDiscriminantValue(p.initializer) && isDiscriminantProperty(contextualType, p.symbol.escapedName); }), function (prop) { return [function () { return checkExpression(prop.initializer); }, prop.symbol.escapedName]; }), isTypeAssignableTo, contextualType);
+        }
+        function discriminateContextualTypeByJSXAttributes(node, contextualType) {
+            return discriminateTypeByDiscriminableItems(contextualType, ts.map(ts.filter(node.properties, function (p) { return !!p.symbol && p.kind === 273 && isDiscriminantProperty(contextualType, p.symbol.escapedName) && (!p.initializer || isPossiblyDiscriminantValue(p.initializer)); }), function (prop) { return [!prop.initializer ? (function () { return trueType; }) : (function () { return checkExpression(prop.initializer); }), prop.symbol.escapedName]; }), isTypeAssignableTo, contextualType);
+        }
+        function getApparentTypeOfContextualType(node, contextFlags) {
+            var contextualType = ts.isObjectLiteralMethod(node) ?
+                getContextualTypeForObjectLiteralMethod(node, contextFlags) :
+                getContextualType(node, contextFlags);
+            var instantiatedType = instantiateContextualType(contextualType, node, contextFlags);
+            if (instantiatedType && !(contextFlags && contextFlags & 2 && instantiatedType.flags & 8650752)) {
+                var apparentType = mapType(instantiatedType, getApparentType, true);
+                if (apparentType.flags & 1048576) {
+                    if (ts.isObjectLiteralExpression(node)) {
+                        return discriminateContextualTypeByObjectMembers(node, apparentType);
+                    }
+                    else if (ts.isJsxAttributes(node)) {
+                        return discriminateContextualTypeByJSXAttributes(node, apparentType);
+                    }
+                }
+                return apparentType;
+            }
+        }
+        function instantiateContextualType(contextualType, node, contextFlags) {
+            if (contextualType && maybeTypeOfKind(contextualType, 63176704)) {
+                var inferenceContext = getInferenceContext(node);
+                if (inferenceContext && ts.some(inferenceContext.inferences, hasInferenceCandidates)) {
+                    if (contextFlags && contextFlags & 1) {
+                        return instantiateInstantiableTypes(contextualType, inferenceContext.nonFixingMapper);
+                    }
+                    if (inferenceContext.returnMapper) {
+                        return instantiateInstantiableTypes(contextualType, inferenceContext.returnMapper);
+                    }
+                }
+            }
+            return contextualType;
+        }
+        function instantiateInstantiableTypes(type, mapper) {
+            if (type.flags & 63176704) {
+                return instantiateType(type, mapper);
+            }
+            if (type.flags & 1048576) {
+                return getUnionType(ts.map(type.types, function (t) { return instantiateInstantiableTypes(t, mapper); }), 0);
+            }
+            if (type.flags & 2097152) {
+                return getIntersectionType(ts.map(type.types, function (t) { return instantiateInstantiableTypes(t, mapper); }));
+            }
+            return type;
+        }
+        function getContextualType(node, contextFlags) {
+            if (node.flags & 16777216) {
+                return undefined;
+            }
+            if (node.contextualType) {
+                return node.contextualType;
+            }
+            var parent = node.parent;
+            switch (parent.kind) {
+                case 242:
+                case 156:
+                case 159:
+                case 158:
+                case 191:
+                    return getContextualTypeForInitializerExpression(node);
+                case 202:
+                case 235:
+                    return getContextualTypeForReturnExpression(node);
+                case 212:
+                    return getContextualTypeForYieldOperand(parent);
+                case 206:
+                    return getContextualTypeForAwaitOperand(parent);
+                case 196:
+                    if (parent.expression.kind === 96) {
+                        return stringType;
+                    }
+                case 197:
+                    return getContextualTypeForArgument(parent, node);
+                case 199:
+                case 217:
+                    return ts.isConstTypeReference(parent.type) ? undefined : getTypeFromTypeNode(parent.type);
+                case 209:
+                    return getContextualTypeForBinaryOperand(node, contextFlags);
+                case 281:
+                case 282:
+                    return getContextualTypeForObjectLiteralElement(parent, contextFlags);
+                case 283:
+                    return getApparentTypeOfContextualType(parent.parent, contextFlags);
+                case 192: {
+                    var arrayLiteral = parent;
+                    var type = getApparentTypeOfContextualType(arrayLiteral, contextFlags);
+                    return getContextualTypeForElementExpression(type, ts.indexOfNode(arrayLiteral.elements, node));
+                }
+                case 210:
+                    return getContextualTypeForConditionalOperand(node, contextFlags);
+                case 221:
+                    ts.Debug.assert(parent.parent.kind === 211);
+                    return getContextualTypeForSubstitutionExpression(parent.parent, node);
+                case 200: {
+                    var tag = ts.isInJSFile(parent) ? ts.getJSDocTypeTag(parent) : undefined;
+                    return tag ? getTypeFromTypeNode(tag.typeExpression.type) : getContextualType(parent, contextFlags);
+                }
+                case 276:
+                    return getContextualTypeForJsxExpression(parent);
+                case 273:
+                case 275:
+                    return getContextualTypeForJsxAttribute(parent);
+                case 268:
+                case 267:
+                    return getContextualJsxElementAttributesType(parent, contextFlags);
+            }
+            return undefined;
+        }
+        function getInferenceContext(node) {
+            var ancestor = ts.findAncestor(node, function (n) { return !!n.inferenceContext; });
+            return ancestor && ancestor.inferenceContext;
+        }
+        function getContextualJsxElementAttributesType(node, contextFlags) {
+            if (ts.isJsxOpeningElement(node) && node.parent.contextualType && contextFlags !== 4) {
+                return node.parent.contextualType;
+            }
+            return getContextualTypeForArgumentAtIndex(node, 0);
+        }
+        function getEffectiveFirstArgumentForJsxSignature(signature, node) {
+            return getJsxReferenceKind(node) !== 0
+                ? getJsxPropsTypeFromCallSignature(signature, node)
+                : getJsxPropsTypeFromClassType(signature, node);
+        }
+        function getJsxPropsTypeFromCallSignature(sig, context) {
+            var propsType = getTypeOfFirstParameterOfSignatureWithFallback(sig, unknownType);
+            propsType = getJsxManagedAttributesFromLocatedAttributes(context, getJsxNamespaceAt(context), propsType);
+            var intrinsicAttribs = getJsxType(JsxNames.IntrinsicAttributes, context);
+            if (intrinsicAttribs !== errorType) {
+                propsType = intersectTypes(intrinsicAttribs, propsType);
+            }
+            return propsType;
+        }
+        function getJsxPropsTypeForSignatureFromMember(sig, forcedLookupLocation) {
+            if (sig.unionSignatures) {
+                var results = [];
+                for (var _i = 0, _a = sig.unionSignatures; _i < _a.length; _i++) {
+                    var signature = _a[_i];
+                    var instance = getReturnTypeOfSignature(signature);
+                    if (isTypeAny(instance)) {
+                        return instance;
+                    }
+                    var propType = getTypeOfPropertyOfType(instance, forcedLookupLocation);
+                    if (!propType) {
+                        return;
+                    }
+                    results.push(propType);
+                }
+                return getIntersectionType(results);
+            }
+            var instanceType = getReturnTypeOfSignature(sig);
+            return isTypeAny(instanceType) ? instanceType : getTypeOfPropertyOfType(instanceType, forcedLookupLocation);
+        }
+        function getStaticTypeOfReferencedJsxConstructor(context) {
+            if (isJsxIntrinsicIdentifier(context.tagName)) {
+                var result = getIntrinsicAttributesTypeFromJsxOpeningLikeElement(context);
+                var fakeSignature = createSignatureForJSXIntrinsic(context, result);
+                return getOrCreateTypeFromSignature(fakeSignature);
+            }
+            var tagType = checkExpressionCached(context.tagName);
+            if (tagType.flags & 128) {
+                var result = getIntrinsicAttributesTypeFromStringLiteralType(tagType, context);
+                if (!result) {
+                    return errorType;
+                }
+                var fakeSignature = createSignatureForJSXIntrinsic(context, result);
+                return getOrCreateTypeFromSignature(fakeSignature);
+            }
+            return tagType;
+        }
+        function getJsxManagedAttributesFromLocatedAttributes(context, ns, attributesType) {
+            var managedSym = getJsxLibraryManagedAttributes(ns);
+            if (managedSym) {
+                var declaredManagedType = getDeclaredTypeOfSymbol(managedSym);
+                var ctorType = getStaticTypeOfReferencedJsxConstructor(context);
+                if (ts.length(declaredManagedType.typeParameters) >= 2) {
+                    var args = fillMissingTypeArguments([ctorType, attributesType], declaredManagedType.typeParameters, 2, ts.isInJSFile(context));
+                    return createTypeReference(declaredManagedType, args);
+                }
+                else if (ts.length(declaredManagedType.aliasTypeArguments) >= 2) {
+                    var args = fillMissingTypeArguments([ctorType, attributesType], declaredManagedType.aliasTypeArguments, 2, ts.isInJSFile(context));
+                    return getTypeAliasInstantiation(declaredManagedType.aliasSymbol, args);
+                }
+            }
+            return attributesType;
+        }
+        function getJsxPropsTypeFromClassType(sig, context) {
+            var ns = getJsxNamespaceAt(context);
+            var forcedLookupLocation = getJsxElementPropertiesName(ns);
+            var attributesType = forcedLookupLocation === undefined
+                ? getTypeOfFirstParameterOfSignatureWithFallback(sig, unknownType)
+                : forcedLookupLocation === ""
+                    ? getReturnTypeOfSignature(sig)
+                    : getJsxPropsTypeForSignatureFromMember(sig, forcedLookupLocation);
+            if (!attributesType) {
+                if (!!forcedLookupLocation && !!ts.length(context.attributes.properties)) {
+                    error(context, ts.Diagnostics.JSX_element_class_does_not_support_attributes_because_it_does_not_have_a_0_property, ts.unescapeLeadingUnderscores(forcedLookupLocation));
+                }
+                return unknownType;
+            }
+            attributesType = getJsxManagedAttributesFromLocatedAttributes(context, ns, attributesType);
+            if (isTypeAny(attributesType)) {
+                return attributesType;
+            }
+            else {
+                var apparentAttributesType = attributesType;
+                var intrinsicClassAttribs = getJsxType(JsxNames.IntrinsicClassAttributes, context);
+                if (intrinsicClassAttribs !== errorType) {
+                    var typeParams = getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(intrinsicClassAttribs.symbol);
+                    var hostClassType = getReturnTypeOfSignature(sig);
+                    apparentAttributesType = intersectTypes(typeParams
+                        ? createTypeReference(intrinsicClassAttribs, fillMissingTypeArguments([hostClassType], typeParams, getMinTypeArgumentCount(typeParams), ts.isInJSFile(context)))
+                        : intrinsicClassAttribs, apparentAttributesType);
+                }
+                var intrinsicAttribs = getJsxType(JsxNames.IntrinsicAttributes, context);
+                if (intrinsicAttribs !== errorType) {
+                    apparentAttributesType = intersectTypes(intrinsicAttribs, apparentAttributesType);
+                }
+                return apparentAttributesType;
+            }
+        }
+        function getContextualCallSignature(type, node) {
+            var signatures = getSignaturesOfType(type, 0);
+            if (signatures.length === 1) {
+                var signature = signatures[0];
+                if (!isAritySmaller(signature, node)) {
+                    return signature;
+                }
+            }
+        }
+        function isAritySmaller(signature, target) {
+            var targetParameterCount = 0;
+            for (; targetParameterCount < target.parameters.length; targetParameterCount++) {
+                var param = target.parameters[targetParameterCount];
+                if (param.initializer || param.questionToken || param.dotDotDotToken || isJSDocOptionalParameter(param)) {
+                    break;
+                }
+            }
+            if (target.parameters.length && ts.parameterIsThisKeyword(target.parameters[0])) {
+                targetParameterCount--;
+            }
+            return !hasEffectiveRestParameter(signature) && getParameterCount(signature) < targetParameterCount;
+        }
+        function isFunctionExpressionOrArrowFunction(node) {
+            return node.kind === 201 || node.kind === 202;
+        }
+        function getContextualSignatureForFunctionLikeDeclaration(node) {
+            return isFunctionExpressionOrArrowFunction(node) || ts.isObjectLiteralMethod(node)
+                ? getContextualSignature(node)
+                : undefined;
+        }
+        function getContextualSignature(node) {
+            ts.Debug.assert(node.kind !== 161 || ts.isObjectLiteralMethod(node));
+            var typeTagSignature = getSignatureOfTypeTag(node);
+            if (typeTagSignature) {
+                return typeTagSignature;
+            }
+            var type = getApparentTypeOfContextualType(node, 1);
+            if (!type) {
+                return undefined;
+            }
+            if (!(type.flags & 1048576)) {
+                return getContextualCallSignature(type, node);
+            }
+            var signatureList;
+            var types = type.types;
+            for (var _i = 0, types_17 = types; _i < types_17.length; _i++) {
+                var current = types_17[_i];
+                var signature = getContextualCallSignature(current, node);
+                if (signature) {
+                    if (!signatureList) {
+                        signatureList = [signature];
+                    }
+                    else if (!compareSignaturesIdentical(signatureList[0], signature, false, true, true, compareTypesIdentical)) {
+                        return undefined;
+                    }
+                    else {
+                        signatureList.push(signature);
+                    }
+                }
+            }
+            if (signatureList) {
+                return signatureList.length === 1 ? signatureList[0] : createUnionSignature(signatureList[0], signatureList);
+            }
+        }
+        function checkSpreadExpression(node, checkMode) {
+            if (languageVersion < 2) {
+                checkExternalEmitHelpers(node, compilerOptions.downlevelIteration ? 1536 : 2048);
+            }
+            var arrayOrIterableType = checkExpression(node.expression, checkMode);
+            return checkIteratedTypeOrElementType(33, arrayOrIterableType, undefinedType, node.expression);
+        }
+        function hasDefaultValue(node) {
+            return (node.kind === 191 && !!node.initializer) ||
+                (node.kind === 209 && node.operatorToken.kind === 62);
+        }
+        function checkArrayLiteral(node, checkMode, forceTuple) {
+            var elements = node.elements;
+            var elementCount = elements.length;
+            var elementTypes = [];
+            var hasEndingSpreadElement = false;
+            var hasNonEndingSpreadElement = false;
+            var contextualType = getApparentTypeOfContextualType(node);
+            var inDestructuringPattern = ts.isAssignmentTarget(node);
+            var inConstContext = isConstContext(node);
+            for (var i = 0; i < elementCount; i++) {
+                var e = elements[i];
+                var spread = e.kind === 213 && e.expression;
+                var spreadType = spread && checkExpression(spread, checkMode, forceTuple);
+                if (spreadType && isTupleType(spreadType)) {
+                    elementTypes.push.apply(elementTypes, getTypeArguments(spreadType));
+                    if (spreadType.target.hasRestElement) {
+                        if (i === elementCount - 1)
+                            hasEndingSpreadElement = true;
+                        else
+                            hasNonEndingSpreadElement = true;
+                    }
+                }
+                else {
+                    if (inDestructuringPattern && spreadType) {
+                        var restElementType = getIndexTypeOfType(spreadType, 1) ||
+                            getIteratedTypeOrElementType(65, spreadType, undefinedType, undefined, false);
+                        if (restElementType) {
+                            elementTypes.push(restElementType);
+                        }
+                    }
+                    else {
+                        var elementContextualType = getContextualTypeForElementExpression(contextualType, elementTypes.length);
+                        var type = checkExpressionForMutableLocation(e, checkMode, elementContextualType, forceTuple);
+                        elementTypes.push(type);
+                    }
+                    if (spread) {
+                        if (i === elementCount - 1)
+                            hasEndingSpreadElement = true;
+                        else
+                            hasNonEndingSpreadElement = true;
+                    }
+                }
+            }
+            if (!hasNonEndingSpreadElement) {
+                var minLength = elementTypes.length - (hasEndingSpreadElement ? 1 : 0);
+                var tupleResult = void 0;
+                if (inDestructuringPattern && minLength > 0) {
+                    var type = cloneTypeReference(createTupleType(elementTypes, minLength, hasEndingSpreadElement));
+                    type.pattern = node;
+                    return type;
+                }
+                else if (tupleResult = getArrayLiteralTupleTypeIfApplicable(elementTypes, contextualType, hasEndingSpreadElement, elementTypes.length, inConstContext)) {
+                    return createArrayLiteralType(tupleResult);
+                }
+                else if (forceTuple) {
+                    return createArrayLiteralType(createTupleType(elementTypes, minLength, hasEndingSpreadElement));
+                }
+            }
+            return createArrayLiteralType(createArrayType(elementTypes.length ?
+                getUnionType(elementTypes, 2) :
+                strictNullChecks ? implicitNeverType : undefinedWideningType, inConstContext));
+        }
+        function createArrayLiteralType(type) {
+            if (!(ts.getObjectFlags(type) & 4)) {
+                return type;
+            }
+            var literalType = type.literalType;
+            if (!literalType) {
+                literalType = type.literalType = cloneTypeReference(type);
+                literalType.objectFlags |= 65536 | 1048576;
+            }
+            return literalType;
+        }
+        function getArrayLiteralTupleTypeIfApplicable(elementTypes, contextualType, hasRestElement, elementCount, readonly) {
+            if (elementCount === void 0) { elementCount = elementTypes.length; }
+            if (readonly === void 0) { readonly = false; }
+            if (readonly || (contextualType && forEachType(contextualType, isTupleLikeType))) {
+                return createTupleType(elementTypes, elementCount - (hasRestElement ? 1 : 0), hasRestElement, readonly);
+            }
+        }
+        function isNumericName(name) {
+            switch (name.kind) {
+                case 154:
+                    return isNumericComputedName(name);
+                case 75:
+                    return isNumericLiteralName(name.escapedText);
+                case 8:
+                case 10:
+                    return isNumericLiteralName(name.text);
+                default:
+                    return false;
+            }
+        }
+        function isNumericComputedName(name) {
+            return isTypeAssignableToKind(checkComputedPropertyName(name), 296);
+        }
+        function isInfinityOrNaNString(name) {
+            return name === "Infinity" || name === "-Infinity" || name === "NaN";
+        }
+        function isNumericLiteralName(name) {
+            return (+name).toString() === name;
+        }
+        function checkComputedPropertyName(node) {
+            var links = getNodeLinks(node.expression);
+            if (!links.resolvedType) {
+                links.resolvedType = checkExpression(node.expression);
+                if (links.resolvedType.flags & 98304 ||
+                    !isTypeAssignableToKind(links.resolvedType, 132 | 296 | 12288) &&
+                        !isTypeAssignableTo(links.resolvedType, stringNumberSymbolType)) {
+                    error(node, ts.Diagnostics.A_computed_property_name_must_be_of_type_string_number_symbol_or_any);
+                }
+                else {
+                    checkThatExpressionIsProperSymbolReference(node.expression, links.resolvedType, true);
+                }
+            }
+            return links.resolvedType;
+        }
+        function getObjectLiteralIndexInfo(node, offset, properties, kind) {
+            var propTypes = [];
+            for (var i = 0; i < properties.length; i++) {
+                if (kind === 0 || isNumericName(node.properties[i + offset].name)) {
+                    propTypes.push(getTypeOfSymbol(properties[i]));
+                }
+            }
+            var unionType = propTypes.length ? getUnionType(propTypes, 2) : undefinedType;
+            return createIndexInfo(unionType, isConstContext(node));
+        }
+        function getImmediateAliasedSymbol(symbol) {
+            ts.Debug.assert((symbol.flags & 2097152) !== 0, "Should only get Alias here.");
+            var links = getSymbolLinks(symbol);
+            if (!links.immediateTarget) {
+                var node = getDeclarationOfAliasSymbol(symbol);
+                if (!node)
+                    return ts.Debug.fail();
+                links.immediateTarget = getTargetOfAliasDeclaration(node, true);
+            }
+            return links.immediateTarget;
+        }
+        function checkObjectLiteral(node, checkMode) {
+            var inDestructuringPattern = ts.isAssignmentTarget(node);
+            checkGrammarObjectLiteralExpression(node, inDestructuringPattern);
+            var allPropertiesTable = strictNullChecks ? ts.createSymbolTable() : undefined;
+            var propertiesTable = ts.createSymbolTable();
+            var propertiesArray = [];
+            var spread = emptyObjectType;
+            var contextualType = getApparentTypeOfContextualType(node);
+            var contextualTypeHasPattern = contextualType && contextualType.pattern &&
+                (contextualType.pattern.kind === 189 || contextualType.pattern.kind === 193);
+            var inConstContext = isConstContext(node);
+            var checkFlags = inConstContext ? 8 : 0;
+            var isInJavascript = ts.isInJSFile(node) && !ts.isInJsonFile(node);
+            var enumTag = ts.getJSDocEnumTag(node);
+            var isJSObjectLiteral = !contextualType && isInJavascript && !enumTag;
+            var objectFlags = freshObjectLiteralFlag;
+            var patternWithComputedProperties = false;
+            var hasComputedStringProperty = false;
+            var hasComputedNumberProperty = false;
+            for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
+                var elem = _a[_i];
+                if (elem.name && ts.isComputedPropertyName(elem.name) && !ts.isWellKnownSymbolSyntactically(elem.name)) {
+                    checkComputedPropertyName(elem.name);
+                }
+            }
+            var offset = 0;
+            for (var i = 0; i < node.properties.length; i++) {
+                var memberDecl = node.properties[i];
+                var member = getSymbolOfNode(memberDecl);
+                var computedNameType = memberDecl.name && memberDecl.name.kind === 154 && !ts.isWellKnownSymbolSyntactically(memberDecl.name.expression) ?
+                    checkComputedPropertyName(memberDecl.name) : undefined;
+                if (memberDecl.kind === 281 ||
+                    memberDecl.kind === 282 ||
+                    ts.isObjectLiteralMethod(memberDecl)) {
+                    var type = memberDecl.kind === 281 ? checkPropertyAssignment(memberDecl, checkMode) :
+                        memberDecl.kind === 282 ? checkExpressionForMutableLocation(memberDecl.name, checkMode) :
+                            checkObjectLiteralMethod(memberDecl, checkMode);
+                    if (isInJavascript) {
+                        var jsDocType = getTypeForDeclarationFromJSDocComment(memberDecl);
+                        if (jsDocType) {
+                            checkTypeAssignableTo(type, jsDocType, memberDecl);
+                            type = jsDocType;
+                        }
+                        else if (enumTag && enumTag.typeExpression) {
+                            checkTypeAssignableTo(type, getTypeFromTypeNode(enumTag.typeExpression), memberDecl);
+                        }
+                    }
+                    objectFlags |= ts.getObjectFlags(type) & 3670016;
+                    var nameType = computedNameType && isTypeUsableAsPropertyName(computedNameType) ? computedNameType : undefined;
+                    var prop = nameType ?
+                        createSymbol(4 | member.flags, getPropertyNameFromType(nameType), checkFlags | 4096) :
+                        createSymbol(4 | member.flags, member.escapedName, checkFlags);
+                    if (nameType) {
+                        prop.nameType = nameType;
+                    }
+                    if (inDestructuringPattern) {
+                        var isOptional = (memberDecl.kind === 281 && hasDefaultValue(memberDecl.initializer)) ||
+                            (memberDecl.kind === 282 && memberDecl.objectAssignmentInitializer);
+                        if (isOptional) {
+                            prop.flags |= 16777216;
+                        }
+                    }
+                    else if (contextualTypeHasPattern && !(ts.getObjectFlags(contextualType) & 512)) {
+                        var impliedProp = getPropertyOfType(contextualType, member.escapedName);
+                        if (impliedProp) {
+                            prop.flags |= impliedProp.flags & 16777216;
+                        }
+                        else if (!compilerOptions.suppressExcessPropertyErrors && !getIndexInfoOfType(contextualType, 0)) {
+                            error(memberDecl.name, ts.Diagnostics.Object_literal_may_only_specify_known_properties_and_0_does_not_exist_in_type_1, symbolToString(member), typeToString(contextualType));
+                        }
+                    }
+                    prop.declarations = member.declarations;
+                    prop.parent = member.parent;
+                    if (member.valueDeclaration) {
+                        prop.valueDeclaration = member.valueDeclaration;
+                    }
+                    prop.type = type;
+                    prop.target = member;
+                    member = prop;
+                    allPropertiesTable === null || allPropertiesTable === void 0 ? void 0 : allPropertiesTable.set(prop.escapedName, prop);
+                }
+                else if (memberDecl.kind === 283) {
+                    if (languageVersion < 2) {
+                        checkExternalEmitHelpers(memberDecl, 2);
+                    }
+                    if (propertiesArray.length > 0) {
+                        spread = getSpreadType(spread, createObjectLiteralType(), node.symbol, objectFlags, inConstContext);
+                        propertiesArray = [];
+                        propertiesTable = ts.createSymbolTable();
+                        hasComputedStringProperty = false;
+                        hasComputedNumberProperty = false;
+                    }
+                    var type = getReducedType(checkExpression(memberDecl.expression));
+                    if (!isValidSpreadType(type)) {
+                        error(memberDecl, ts.Diagnostics.Spread_types_may_only_be_created_from_object_types);
+                        return errorType;
+                    }
+                    if (allPropertiesTable) {
+                        checkSpreadPropOverrides(type, allPropertiesTable, memberDecl);
+                    }
+                    spread = getSpreadType(spread, type, node.symbol, objectFlags, inConstContext);
+                    offset = i + 1;
+                    continue;
+                }
+                else {
+                    ts.Debug.assert(memberDecl.kind === 163 || memberDecl.kind === 164);
+                    checkNodeDeferred(memberDecl);
+                }
+                if (computedNameType && !(computedNameType.flags & 8576)) {
+                    if (isTypeAssignableTo(computedNameType, stringNumberSymbolType)) {
+                        if (isTypeAssignableTo(computedNameType, numberType)) {
+                            hasComputedNumberProperty = true;
+                        }
+                        else {
+                            hasComputedStringProperty = true;
+                        }
+                        if (inDestructuringPattern) {
+                            patternWithComputedProperties = true;
+                        }
+                    }
+                }
+                else {
+                    propertiesTable.set(member.escapedName, member);
+                }
+                propertiesArray.push(member);
+            }
+            if (contextualTypeHasPattern && node.parent.kind !== 283) {
+                for (var _b = 0, _c = getPropertiesOfType(contextualType); _b < _c.length; _b++) {
+                    var prop = _c[_b];
+                    if (!propertiesTable.get(prop.escapedName) && !getPropertyOfType(spread, prop.escapedName)) {
+                        if (!(prop.flags & 16777216)) {
+                            error(prop.valueDeclaration || prop.bindingElement, ts.Diagnostics.Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value);
+                        }
+                        propertiesTable.set(prop.escapedName, prop);
+                        propertiesArray.push(prop);
+                    }
+                }
+            }
+            if (spread !== emptyObjectType) {
+                if (propertiesArray.length > 0) {
+                    spread = getSpreadType(spread, createObjectLiteralType(), node.symbol, objectFlags, inConstContext);
+                    propertiesArray = [];
+                    propertiesTable = ts.createSymbolTable();
+                    hasComputedStringProperty = false;
+                    hasComputedNumberProperty = false;
+                }
+                return mapType(spread, function (t) { return t === emptyObjectType ? createObjectLiteralType() : t; });
+            }
+            return createObjectLiteralType();
+            function createObjectLiteralType() {
+                var stringIndexInfo = hasComputedStringProperty ? getObjectLiteralIndexInfo(node, offset, propertiesArray, 0) : undefined;
+                var numberIndexInfo = hasComputedNumberProperty ? getObjectLiteralIndexInfo(node, offset, propertiesArray, 1) : undefined;
+                var result = createAnonymousType(node.symbol, propertiesTable, ts.emptyArray, ts.emptyArray, stringIndexInfo, numberIndexInfo);
+                result.objectFlags |= objectFlags | 128 | 1048576;
+                if (isJSObjectLiteral) {
+                    result.objectFlags |= 16384;
+                }
+                if (patternWithComputedProperties) {
+                    result.objectFlags |= 512;
+                }
+                if (inDestructuringPattern) {
+                    result.pattern = node;
+                }
+                return result;
+            }
+        }
+        function isValidSpreadType(type) {
+            if (type.flags & 63176704) {
+                var constraint = getBaseConstraintOfType(type);
+                if (constraint !== undefined) {
+                    return isValidSpreadType(constraint);
+                }
+            }
+            return !!(type.flags & (1 | 67108864 | 524288 | 58982400) ||
+                getFalsyFlags(type) & 117632 && isValidSpreadType(removeDefinitelyFalsyTypes(type)) ||
+                type.flags & 3145728 && ts.every(type.types, isValidSpreadType));
+        }
+        function checkJsxSelfClosingElementDeferred(node) {
+            checkJsxOpeningLikeElementOrOpeningFragment(node);
+            resolveUntypedCall(node);
+        }
+        function checkJsxSelfClosingElement(node, _checkMode) {
+            checkNodeDeferred(node);
+            return getJsxElementTypeAt(node) || anyType;
+        }
+        function checkJsxElementDeferred(node) {
+            checkJsxOpeningLikeElementOrOpeningFragment(node.openingElement);
+            if (isJsxIntrinsicIdentifier(node.closingElement.tagName)) {
+                getIntrinsicTagSymbol(node.closingElement);
+            }
+            else {
+                checkExpression(node.closingElement.tagName);
+            }
+            checkJsxChildren(node);
+        }
+        function checkJsxElement(node, _checkMode) {
+            checkNodeDeferred(node);
+            return getJsxElementTypeAt(node) || anyType;
+        }
+        function checkJsxFragment(node) {
+            checkJsxOpeningLikeElementOrOpeningFragment(node.openingFragment);
+            if (compilerOptions.jsx === 2 && (compilerOptions.jsxFactory || ts.getSourceFileOfNode(node).pragmas.has("jsx"))) {
+                error(node, compilerOptions.jsxFactory
+                    ? ts.Diagnostics.JSX_fragment_is_not_supported_when_using_jsxFactory
+                    : ts.Diagnostics.JSX_fragment_is_not_supported_when_using_an_inline_JSX_factory_pragma);
+            }
+            checkJsxChildren(node);
+            return getJsxElementTypeAt(node) || anyType;
+        }
+        function isUnhyphenatedJsxName(name) {
+            return !ts.stringContains(name, "-");
+        }
+        function isJsxIntrinsicIdentifier(tagName) {
+            return tagName.kind === 75 && ts.isIntrinsicJsxName(tagName.escapedText);
+        }
+        function checkJsxAttribute(node, checkMode) {
+            return node.initializer
+                ? checkExpressionForMutableLocation(node.initializer, checkMode)
+                : trueType;
+        }
+        function createJsxAttributesTypeFromAttributesProperty(openingLikeElement, checkMode) {
+            var attributes = openingLikeElement.attributes;
+            var allAttributesTable = strictNullChecks ? ts.createSymbolTable() : undefined;
+            var attributesTable = ts.createSymbolTable();
+            var spread = emptyJsxObjectType;
+            var hasSpreadAnyType = false;
+            var typeToIntersect;
+            var explicitlySpecifyChildrenAttribute = false;
+            var objectFlags = 4096;
+            var jsxChildrenPropertyName = getJsxElementChildrenPropertyName(getJsxNamespaceAt(openingLikeElement));
+            for (var _i = 0, _a = attributes.properties; _i < _a.length; _i++) {
+                var attributeDecl = _a[_i];
+                var member = attributeDecl.symbol;
+                if (ts.isJsxAttribute(attributeDecl)) {
+                    var exprType = checkJsxAttribute(attributeDecl, checkMode);
+                    objectFlags |= ts.getObjectFlags(exprType) & 3670016;
+                    var attributeSymbol = createSymbol(4 | 33554432 | member.flags, member.escapedName);
+                    attributeSymbol.declarations = member.declarations;
+                    attributeSymbol.parent = member.parent;
+                    if (member.valueDeclaration) {
+                        attributeSymbol.valueDeclaration = member.valueDeclaration;
+                    }
+                    attributeSymbol.type = exprType;
+                    attributeSymbol.target = member;
+                    attributesTable.set(attributeSymbol.escapedName, attributeSymbol);
+                    allAttributesTable === null || allAttributesTable === void 0 ? void 0 : allAttributesTable.set(attributeSymbol.escapedName, attributeSymbol);
+                    if (attributeDecl.name.escapedText === jsxChildrenPropertyName) {
+                        explicitlySpecifyChildrenAttribute = true;
+                    }
+                }
+                else {
+                    ts.Debug.assert(attributeDecl.kind === 275);
+                    if (attributesTable.size > 0) {
+                        spread = getSpreadType(spread, createJsxAttributesType(), attributes.symbol, objectFlags, false);
+                        attributesTable = ts.createSymbolTable();
+                    }
+                    var exprType = getReducedType(checkExpressionCached(attributeDecl.expression, checkMode));
+                    if (isTypeAny(exprType)) {
+                        hasSpreadAnyType = true;
+                    }
+                    if (isValidSpreadType(exprType)) {
+                        spread = getSpreadType(spread, exprType, attributes.symbol, objectFlags, false);
+                        if (allAttributesTable) {
+                            checkSpreadPropOverrides(exprType, allAttributesTable, attributeDecl);
+                        }
+                    }
+                    else {
+                        typeToIntersect = typeToIntersect ? getIntersectionType([typeToIntersect, exprType]) : exprType;
+                    }
+                }
+            }
+            if (!hasSpreadAnyType) {
+                if (attributesTable.size > 0) {
+                    spread = getSpreadType(spread, createJsxAttributesType(), attributes.symbol, objectFlags, false);
+                }
+            }
+            var parent = openingLikeElement.parent.kind === 266 ? openingLikeElement.parent : undefined;
+            if (parent && parent.openingElement === openingLikeElement && parent.children.length > 0) {
+                var childrenTypes = checkJsxChildren(parent, checkMode);
+                if (!hasSpreadAnyType && jsxChildrenPropertyName && jsxChildrenPropertyName !== "") {
+                    if (explicitlySpecifyChildrenAttribute) {
+                        error(attributes, ts.Diagnostics._0_are_specified_twice_The_attribute_named_0_will_be_overwritten, ts.unescapeLeadingUnderscores(jsxChildrenPropertyName));
+                    }
+                    var contextualType = getApparentTypeOfContextualType(openingLikeElement.attributes);
+                    var childrenContextualType = contextualType && getTypeOfPropertyOfContextualType(contextualType, jsxChildrenPropertyName);
+                    var childrenPropSymbol = createSymbol(4 | 33554432, jsxChildrenPropertyName);
+                    childrenPropSymbol.type = childrenTypes.length === 1 ?
+                        childrenTypes[0] :
+                        (getArrayLiteralTupleTypeIfApplicable(childrenTypes, childrenContextualType, false) || createArrayType(getUnionType(childrenTypes)));
+                    childrenPropSymbol.valueDeclaration = ts.createPropertySignature(undefined, ts.unescapeLeadingUnderscores(jsxChildrenPropertyName), undefined, undefined, undefined);
+                    childrenPropSymbol.valueDeclaration.parent = attributes;
+                    childrenPropSymbol.valueDeclaration.symbol = childrenPropSymbol;
+                    var childPropMap = ts.createSymbolTable();
+                    childPropMap.set(jsxChildrenPropertyName, childrenPropSymbol);
+                    spread = getSpreadType(spread, createAnonymousType(attributes.symbol, childPropMap, ts.emptyArray, ts.emptyArray, undefined, undefined), attributes.symbol, objectFlags, false);
+                }
+            }
+            if (hasSpreadAnyType) {
+                return anyType;
+            }
+            if (typeToIntersect && spread !== emptyJsxObjectType) {
+                return getIntersectionType([typeToIntersect, spread]);
+            }
+            return typeToIntersect || (spread === emptyJsxObjectType ? createJsxAttributesType() : spread);
+            function createJsxAttributesType() {
+                objectFlags |= freshObjectLiteralFlag;
+                var result = createAnonymousType(attributes.symbol, attributesTable, ts.emptyArray, ts.emptyArray, undefined, undefined);
+                result.objectFlags |= objectFlags | 128 | 1048576;
+                return result;
+            }
+        }
+        function checkJsxChildren(node, checkMode) {
+            var childrenTypes = [];
+            for (var _i = 0, _a = node.children; _i < _a.length; _i++) {
+                var child = _a[_i];
+                if (child.kind === 11) {
+                    if (!child.containsOnlyTriviaWhiteSpaces) {
+                        childrenTypes.push(stringType);
+                    }
+                }
+                else {
+                    childrenTypes.push(checkExpressionForMutableLocation(child, checkMode));
+                }
+            }
+            return childrenTypes;
+        }
+        function checkSpreadPropOverrides(type, props, spread) {
+            for (var _i = 0, _a = getPropertiesOfType(type); _i < _a.length; _i++) {
+                var right = _a[_i];
+                var left = props.get(right.escapedName);
+                var rightType = getTypeOfSymbol(right);
+                if (left && !maybeTypeOfKind(rightType, 98304) && !(maybeTypeOfKind(rightType, 3) && right.flags & 16777216)) {
+                    var diagnostic = error(left.valueDeclaration, ts.Diagnostics._0_is_specified_more_than_once_so_this_usage_will_be_overwritten, ts.unescapeLeadingUnderscores(left.escapedName));
+                    ts.addRelatedInfo(diagnostic, ts.createDiagnosticForNode(spread, ts.Diagnostics.This_spread_always_overwrites_this_property));
+                }
+            }
+        }
+        function checkJsxAttributes(node, checkMode) {
+            return createJsxAttributesTypeFromAttributesProperty(node.parent, checkMode);
+        }
+        function getJsxType(name, location) {
+            var namespace = getJsxNamespaceAt(location);
+            var exports = namespace && getExportsOfSymbol(namespace);
+            var typeSymbol = exports && getSymbol(exports, name, 788968);
+            return typeSymbol ? getDeclaredTypeOfSymbol(typeSymbol) : errorType;
+        }
+        function getIntrinsicTagSymbol(node) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedSymbol) {
+                var intrinsicElementsType = getJsxType(JsxNames.IntrinsicElements, node);
+                if (intrinsicElementsType !== errorType) {
+                    if (!ts.isIdentifier(node.tagName))
+                        return ts.Debug.fail();
+                    var intrinsicProp = getPropertyOfType(intrinsicElementsType, node.tagName.escapedText);
+                    if (intrinsicProp) {
+                        links.jsxFlags |= 1;
+                        return links.resolvedSymbol = intrinsicProp;
+                    }
+                    var indexSignatureType = getIndexTypeOfType(intrinsicElementsType, 0);
+                    if (indexSignatureType) {
+                        links.jsxFlags |= 2;
+                        return links.resolvedSymbol = intrinsicElementsType.symbol;
+                    }
+                    error(node, ts.Diagnostics.Property_0_does_not_exist_on_type_1, ts.idText(node.tagName), "JSX." + JsxNames.IntrinsicElements);
+                    return links.resolvedSymbol = unknownSymbol;
+                }
+                else {
+                    if (noImplicitAny) {
+                        error(node, ts.Diagnostics.JSX_element_implicitly_has_type_any_because_no_interface_JSX_0_exists, ts.unescapeLeadingUnderscores(JsxNames.IntrinsicElements));
+                    }
+                    return links.resolvedSymbol = unknownSymbol;
+                }
+            }
+            return links.resolvedSymbol;
+        }
+        function getJsxNamespaceAt(location) {
+            var links = location && getNodeLinks(location);
+            if (links && links.jsxNamespace) {
+                return links.jsxNamespace;
+            }
+            if (!links || links.jsxNamespace !== false) {
+                var namespaceName = getJsxNamespace(location);
+                var resolvedNamespace = resolveName(location, namespaceName, 1920, undefined, namespaceName, false);
+                if (resolvedNamespace) {
+                    var candidate = resolveSymbol(getSymbol(getExportsOfSymbol(resolveSymbol(resolvedNamespace)), JsxNames.JSX, 1920));
+                    if (candidate) {
+                        if (links) {
+                            links.jsxNamespace = candidate;
+                        }
+                        return candidate;
+                    }
+                    if (links) {
+                        links.jsxNamespace = false;
+                    }
+                }
+            }
+            return getGlobalSymbol(JsxNames.JSX, 1920, undefined);
+        }
+        function getNameFromJsxElementAttributesContainer(nameOfAttribPropContainer, jsxNamespace) {
+            var jsxElementAttribPropInterfaceSym = jsxNamespace && getSymbol(jsxNamespace.exports, nameOfAttribPropContainer, 788968);
+            var jsxElementAttribPropInterfaceType = jsxElementAttribPropInterfaceSym && getDeclaredTypeOfSymbol(jsxElementAttribPropInterfaceSym);
+            var propertiesOfJsxElementAttribPropInterface = jsxElementAttribPropInterfaceType && getPropertiesOfType(jsxElementAttribPropInterfaceType);
+            if (propertiesOfJsxElementAttribPropInterface) {
+                if (propertiesOfJsxElementAttribPropInterface.length === 0) {
+                    return "";
+                }
+                else if (propertiesOfJsxElementAttribPropInterface.length === 1) {
+                    return propertiesOfJsxElementAttribPropInterface[0].escapedName;
+                }
+                else if (propertiesOfJsxElementAttribPropInterface.length > 1) {
+                    error(jsxElementAttribPropInterfaceSym.declarations[0], ts.Diagnostics.The_global_type_JSX_0_may_not_have_more_than_one_property, ts.unescapeLeadingUnderscores(nameOfAttribPropContainer));
+                }
+            }
+            return undefined;
+        }
+        function getJsxLibraryManagedAttributes(jsxNamespace) {
+            return jsxNamespace && getSymbol(jsxNamespace.exports, JsxNames.LibraryManagedAttributes, 788968);
+        }
+        function getJsxElementPropertiesName(jsxNamespace) {
+            return getNameFromJsxElementAttributesContainer(JsxNames.ElementAttributesPropertyNameContainer, jsxNamespace);
+        }
+        function getJsxElementChildrenPropertyName(jsxNamespace) {
+            return getNameFromJsxElementAttributesContainer(JsxNames.ElementChildrenAttributeNameContainer, jsxNamespace);
+        }
+        function getUninstantiatedJsxSignaturesOfType(elementType, caller) {
+            if (elementType.flags & 4) {
+                return [anySignature];
+            }
+            else if (elementType.flags & 128) {
+                var intrinsicType = getIntrinsicAttributesTypeFromStringLiteralType(elementType, caller);
+                if (!intrinsicType) {
+                    error(caller, ts.Diagnostics.Property_0_does_not_exist_on_type_1, elementType.value, "JSX." + JsxNames.IntrinsicElements);
+                    return ts.emptyArray;
+                }
+                else {
+                    var fakeSignature = createSignatureForJSXIntrinsic(caller, intrinsicType);
+                    return [fakeSignature];
+                }
+            }
+            var apparentElemType = getApparentType(elementType);
+            var signatures = getSignaturesOfType(apparentElemType, 1);
+            if (signatures.length === 0) {
+                signatures = getSignaturesOfType(apparentElemType, 0);
+            }
+            if (signatures.length === 0 && apparentElemType.flags & 1048576) {
+                signatures = getUnionSignatures(ts.map(apparentElemType.types, function (t) { return getUninstantiatedJsxSignaturesOfType(t, caller); }));
+            }
+            return signatures;
+        }
+        function getIntrinsicAttributesTypeFromStringLiteralType(type, location) {
+            var intrinsicElementsType = getJsxType(JsxNames.IntrinsicElements, location);
+            if (intrinsicElementsType !== errorType) {
+                var stringLiteralTypeName = type.value;
+                var intrinsicProp = getPropertyOfType(intrinsicElementsType, ts.escapeLeadingUnderscores(stringLiteralTypeName));
+                if (intrinsicProp) {
+                    return getTypeOfSymbol(intrinsicProp);
+                }
+                var indexSignatureType = getIndexTypeOfType(intrinsicElementsType, 0);
+                if (indexSignatureType) {
+                    return indexSignatureType;
+                }
+                return undefined;
+            }
+            return anyType;
+        }
+        function checkJsxReturnAssignableToAppropriateBound(refKind, elemInstanceType, openingLikeElement) {
+            if (refKind === 1) {
+                var sfcReturnConstraint = getJsxStatelessElementTypeAt(openingLikeElement);
+                if (sfcReturnConstraint) {
+                    checkTypeRelatedTo(elemInstanceType, sfcReturnConstraint, assignableRelation, openingLikeElement.tagName, ts.Diagnostics.Its_return_type_0_is_not_a_valid_JSX_element, generateInitialErrorChain);
+                }
+            }
+            else if (refKind === 0) {
+                var classConstraint = getJsxElementClassTypeAt(openingLikeElement);
+                if (classConstraint) {
+                    checkTypeRelatedTo(elemInstanceType, classConstraint, assignableRelation, openingLikeElement.tagName, ts.Diagnostics.Its_instance_type_0_is_not_a_valid_JSX_element, generateInitialErrorChain);
+                }
+            }
+            else {
+                var sfcReturnConstraint = getJsxStatelessElementTypeAt(openingLikeElement);
+                var classConstraint = getJsxElementClassTypeAt(openingLikeElement);
+                if (!sfcReturnConstraint || !classConstraint) {
+                    return;
+                }
+                var combined = getUnionType([sfcReturnConstraint, classConstraint]);
+                checkTypeRelatedTo(elemInstanceType, combined, assignableRelation, openingLikeElement.tagName, ts.Diagnostics.Its_element_type_0_is_not_a_valid_JSX_element, generateInitialErrorChain);
+            }
+            function generateInitialErrorChain() {
+                var componentName = ts.getTextOfNode(openingLikeElement.tagName);
+                return ts.chainDiagnosticMessages(undefined, ts.Diagnostics._0_cannot_be_used_as_a_JSX_component, componentName);
+            }
+        }
+        function getIntrinsicAttributesTypeFromJsxOpeningLikeElement(node) {
+            ts.Debug.assert(isJsxIntrinsicIdentifier(node.tagName));
+            var links = getNodeLinks(node);
+            if (!links.resolvedJsxElementAttributesType) {
+                var symbol = getIntrinsicTagSymbol(node);
+                if (links.jsxFlags & 1) {
+                    return links.resolvedJsxElementAttributesType = getTypeOfSymbol(symbol);
+                }
+                else if (links.jsxFlags & 2) {
+                    return links.resolvedJsxElementAttributesType =
+                        getIndexTypeOfType(getDeclaredTypeOfSymbol(symbol), 0);
+                }
+                else {
+                    return links.resolvedJsxElementAttributesType = errorType;
+                }
+            }
+            return links.resolvedJsxElementAttributesType;
+        }
+        function getJsxElementClassTypeAt(location) {
+            var type = getJsxType(JsxNames.ElementClass, location);
+            if (type === errorType)
+                return undefined;
+            return type;
+        }
+        function getJsxElementTypeAt(location) {
+            return getJsxType(JsxNames.Element, location);
+        }
+        function getJsxStatelessElementTypeAt(location) {
+            var jsxElementType = getJsxElementTypeAt(location);
+            if (jsxElementType) {
+                return getUnionType([jsxElementType, nullType]);
+            }
+        }
+        function getJsxIntrinsicTagNamesAt(location) {
+            var intrinsics = getJsxType(JsxNames.IntrinsicElements, location);
+            return intrinsics ? getPropertiesOfType(intrinsics) : ts.emptyArray;
+        }
+        function checkJsxPreconditions(errorNode) {
+            if ((compilerOptions.jsx || 0) === 0) {
+                error(errorNode, ts.Diagnostics.Cannot_use_JSX_unless_the_jsx_flag_is_provided);
+            }
+            if (getJsxElementTypeAt(errorNode) === undefined) {
+                if (noImplicitAny) {
+                    error(errorNode, ts.Diagnostics.JSX_element_implicitly_has_type_any_because_the_global_type_JSX_Element_does_not_exist);
+                }
+            }
+        }
+        function checkJsxOpeningLikeElementOrOpeningFragment(node) {
+            var isNodeOpeningLikeElement = ts.isJsxOpeningLikeElement(node);
+            if (isNodeOpeningLikeElement) {
+                checkGrammarJsxElement(node);
+            }
+            checkJsxPreconditions(node);
+            var reactRefErr = diagnostics && compilerOptions.jsx === 2 ? ts.Diagnostics.Cannot_find_name_0 : undefined;
+            var reactNamespace = getJsxNamespace(node);
+            var reactLocation = isNodeOpeningLikeElement ? node.tagName : node;
+            var reactSym = resolveName(reactLocation, reactNamespace, 111551, reactRefErr, reactNamespace, true);
+            if (reactSym) {
+                reactSym.isReferenced = 67108863;
+                if (reactSym.flags & 2097152 && !getTypeOnlyAliasDeclaration(reactSym)) {
+                    markAliasSymbolAsReferenced(reactSym);
+                }
+            }
+            if (isNodeOpeningLikeElement) {
+                var jsxOpeningLikeNode = node;
+                var sig = getResolvedSignature(jsxOpeningLikeNode);
+                checkJsxReturnAssignableToAppropriateBound(getJsxReferenceKind(jsxOpeningLikeNode), getReturnTypeOfSignature(sig), jsxOpeningLikeNode);
+            }
+        }
+        function isKnownProperty(targetType, name, isComparingJsxAttributes) {
+            if (targetType.flags & 524288) {
+                var resolved = resolveStructuredTypeMembers(targetType);
+                if (resolved.stringIndexInfo ||
+                    resolved.numberIndexInfo && isNumericLiteralName(name) ||
+                    getPropertyOfObjectType(targetType, name) ||
+                    isComparingJsxAttributes && !isUnhyphenatedJsxName(name)) {
+                    return true;
+                }
+            }
+            else if (targetType.flags & 3145728 && isExcessPropertyCheckTarget(targetType)) {
+                for (var _i = 0, _a = targetType.types; _i < _a.length; _i++) {
+                    var t = _a[_i];
+                    if (isKnownProperty(t, name, isComparingJsxAttributes)) {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
+        function isExcessPropertyCheckTarget(type) {
+            return !!(type.flags & 524288 && !(ts.getObjectFlags(type) & 512) ||
+                type.flags & 67108864 ||
+                type.flags & 1048576 && ts.some(type.types, isExcessPropertyCheckTarget) ||
+                type.flags & 2097152 && ts.every(type.types, isExcessPropertyCheckTarget));
+        }
+        function checkJsxExpression(node, checkMode) {
+            checkGrammarJsxExpression(node);
+            if (node.expression) {
+                var type = checkExpression(node.expression, checkMode);
+                if (node.dotDotDotToken && type !== anyType && !isArrayType(type)) {
+                    error(node, ts.Diagnostics.JSX_spread_child_must_be_an_array_type);
+                }
+                return type;
+            }
+            else {
+                return errorType;
+            }
+        }
+        function getDeclarationNodeFlagsFromSymbol(s) {
+            return s.valueDeclaration ? ts.getCombinedNodeFlags(s.valueDeclaration) : 0;
+        }
+        function isPrototypeProperty(symbol) {
+            if (symbol.flags & 8192 || ts.getCheckFlags(symbol) & 4) {
+                return true;
+            }
+            if (ts.isInJSFile(symbol.valueDeclaration)) {
+                var parent = symbol.valueDeclaration.parent;
+                return parent && ts.isBinaryExpression(parent) &&
+                    ts.getAssignmentDeclarationKind(parent) === 3;
+            }
+        }
+        function checkPropertyAccessibility(node, isSuper, type, prop) {
+            var flags = ts.getDeclarationModifierFlagsFromSymbol(prop);
+            var errorNode = node.kind === 153 ? node.right : node.kind === 188 ? node : node.name;
+            if (isSuper) {
+                if (languageVersion < 2) {
+                    if (symbolHasNonMethodDeclaration(prop)) {
+                        error(errorNode, ts.Diagnostics.Only_public_and_protected_methods_of_the_base_class_are_accessible_via_the_super_keyword);
+                        return false;
+                    }
+                }
+                if (flags & 128) {
+                    error(errorNode, ts.Diagnostics.Abstract_method_0_in_class_1_cannot_be_accessed_via_super_expression, symbolToString(prop), typeToString(getDeclaringClass(prop)));
+                    return false;
+                }
+            }
+            if ((flags & 128) && ts.isThisProperty(node) && symbolHasNonMethodDeclaration(prop)) {
+                var declaringClassDeclaration = ts.getClassLikeDeclarationOfSymbol(getParentOfSymbol(prop));
+                if (declaringClassDeclaration && isNodeUsedDuringClassInitialization(node)) {
+                    error(errorNode, ts.Diagnostics.Abstract_property_0_in_class_1_cannot_be_accessed_in_the_constructor, symbolToString(prop), ts.getTextOfIdentifierOrLiteral(declaringClassDeclaration.name));
+                    return false;
+                }
+            }
+            if (ts.isPropertyAccessExpression(node) && ts.isPrivateIdentifier(node.name)) {
+                if (!ts.getContainingClass(node)) {
+                    error(errorNode, ts.Diagnostics.Private_identifiers_are_not_allowed_outside_class_bodies);
+                    return false;
+                }
+                return true;
+            }
+            if (!(flags & 24)) {
+                return true;
+            }
+            if (flags & 8) {
+                var declaringClassDeclaration = ts.getClassLikeDeclarationOfSymbol(getParentOfSymbol(prop));
+                if (!isNodeWithinClass(node, declaringClassDeclaration)) {
+                    error(errorNode, ts.Diagnostics.Property_0_is_private_and_only_accessible_within_class_1, symbolToString(prop), typeToString(getDeclaringClass(prop)));
+                    return false;
+                }
+                return true;
+            }
+            if (isSuper) {
+                return true;
+            }
+            var enclosingClass = forEachEnclosingClass(node, function (enclosingDeclaration) {
+                var enclosingClass = getDeclaredTypeOfSymbol(getSymbolOfNode(enclosingDeclaration));
+                return isClassDerivedFromDeclaringClasses(enclosingClass, prop) ? enclosingClass : undefined;
+            });
+            if (!enclosingClass) {
+                var thisParameter = void 0;
+                if (flags & 32 || !(thisParameter = getThisParameterFromNodeContext(node)) || !thisParameter.type) {
+                    error(errorNode, ts.Diagnostics.Property_0_is_protected_and_only_accessible_within_class_1_and_its_subclasses, symbolToString(prop), typeToString(getDeclaringClass(prop) || type));
+                    return false;
+                }
+                var thisType = getTypeFromTypeNode(thisParameter.type);
+                enclosingClass = ((thisType.flags & 262144) ? getConstraintOfTypeParameter(thisType) : thisType).target;
+            }
+            if (flags & 32) {
+                return true;
+            }
+            if (type.flags & 262144) {
+                type = type.isThisType ? getConstraintOfTypeParameter(type) : getBaseConstraintOfType(type);
+            }
+            if (!type || !hasBaseType(type, enclosingClass)) {
+                error(errorNode, ts.Diagnostics.Property_0_is_protected_and_only_accessible_through_an_instance_of_class_1, symbolToString(prop), typeToString(enclosingClass));
+                return false;
+            }
+            return true;
+        }
+        function getThisParameterFromNodeContext(node) {
+            var thisContainer = ts.getThisContainer(node, false);
+            return thisContainer && ts.isFunctionLike(thisContainer) ? ts.getThisParameter(thisContainer) : undefined;
+        }
+        function symbolHasNonMethodDeclaration(symbol) {
+            return !!forEachProperty(symbol, function (prop) { return !(prop.flags & 8192); });
+        }
+        function checkNonNullExpression(node) {
+            return checkNonNullType(checkExpression(node), node);
+        }
+        function isNullableType(type) {
+            return !!((strictNullChecks ? getFalsyFlags(type) : type.flags) & 98304);
+        }
+        function getNonNullableTypeIfNeeded(type) {
+            return isNullableType(type) ? getNonNullableType(type) : type;
+        }
+        function reportObjectPossiblyNullOrUndefinedError(node, flags) {
+            error(node, flags & 32768 ? flags & 65536 ?
+                ts.Diagnostics.Object_is_possibly_null_or_undefined :
+                ts.Diagnostics.Object_is_possibly_undefined :
+                ts.Diagnostics.Object_is_possibly_null);
+        }
+        function reportCannotInvokePossiblyNullOrUndefinedError(node, flags) {
+            error(node, flags & 32768 ? flags & 65536 ?
+                ts.Diagnostics.Cannot_invoke_an_object_which_is_possibly_null_or_undefined :
+                ts.Diagnostics.Cannot_invoke_an_object_which_is_possibly_undefined :
+                ts.Diagnostics.Cannot_invoke_an_object_which_is_possibly_null);
+        }
+        function checkNonNullTypeWithReporter(type, node, reportError) {
+            if (strictNullChecks && type.flags & 2) {
+                error(node, ts.Diagnostics.Object_is_of_type_unknown);
+                return errorType;
+            }
+            var kind = (strictNullChecks ? getFalsyFlags(type) : type.flags) & 98304;
+            if (kind) {
+                reportError(node, kind);
+                var t = getNonNullableType(type);
+                return t.flags & (98304 | 131072) ? errorType : t;
+            }
+            return type;
+        }
+        function checkNonNullType(type, node) {
+            return checkNonNullTypeWithReporter(type, node, reportObjectPossiblyNullOrUndefinedError);
+        }
+        function checkNonNullNonVoidType(type, node) {
+            var nonNullType = checkNonNullType(type, node);
+            if (nonNullType !== errorType && nonNullType.flags & 16384) {
+                error(node, ts.Diagnostics.Object_is_possibly_undefined);
+            }
+            return nonNullType;
+        }
+        function checkPropertyAccessExpression(node) {
+            return node.flags & 32 ? checkPropertyAccessChain(node) :
+                checkPropertyAccessExpressionOrQualifiedName(node, node.expression, checkNonNullExpression(node.expression), node.name);
+        }
+        function checkPropertyAccessChain(node) {
+            var leftType = checkExpression(node.expression);
+            var nonOptionalType = getOptionalExpressionType(leftType, node.expression);
+            return propagateOptionalTypeMarker(checkPropertyAccessExpressionOrQualifiedName(node, node.expression, checkNonNullType(nonOptionalType, node.expression), node.name), node, nonOptionalType !== leftType);
+        }
+        function checkQualifiedName(node) {
+            return checkPropertyAccessExpressionOrQualifiedName(node, node.left, checkNonNullExpression(node.left), node.right);
+        }
+        function isMethodAccessForCall(node) {
+            while (node.parent.kind === 200) {
+                node = node.parent;
+            }
+            return ts.isCallOrNewExpression(node.parent) && node.parent.expression === node;
+        }
+        function lookupSymbolForPrivateIdentifierDeclaration(propName, location) {
+            for (var containingClass = ts.getContainingClass(location); !!containingClass; containingClass = ts.getContainingClass(containingClass)) {
+                var symbol = containingClass.symbol;
+                var name = ts.getSymbolNameForPrivateIdentifier(symbol, propName);
+                var prop = (symbol.members && symbol.members.get(name)) || (symbol.exports && symbol.exports.get(name));
+                if (prop) {
+                    return prop;
+                }
+            }
+        }
+        function getPrivateIdentifierPropertyOfType(leftType, lexicallyScopedIdentifier) {
+            return getPropertyOfType(leftType, lexicallyScopedIdentifier.escapedName);
+        }
+        function checkPrivateIdentifierPropertyAccess(leftType, right, lexicallyScopedIdentifier) {
+            var propertyOnType;
+            var properties = getPropertiesOfType(leftType);
+            if (properties) {
+                ts.forEach(properties, function (symbol) {
+                    var decl = symbol.valueDeclaration;
+                    if (decl && ts.isNamedDeclaration(decl) && ts.isPrivateIdentifier(decl.name) && decl.name.escapedText === right.escapedText) {
+                        propertyOnType = symbol;
+                        return true;
+                    }
+                });
+            }
+            var diagName = diagnosticName(right);
+            if (propertyOnType) {
+                var typeValueDecl = propertyOnType.valueDeclaration;
+                var typeClass_1 = ts.getContainingClass(typeValueDecl);
+                ts.Debug.assert(!!typeClass_1);
+                if (lexicallyScopedIdentifier) {
+                    var lexicalValueDecl = lexicallyScopedIdentifier.valueDeclaration;
+                    var lexicalClass = ts.getContainingClass(lexicalValueDecl);
+                    ts.Debug.assert(!!lexicalClass);
+                    if (ts.findAncestor(lexicalClass, function (n) { return typeClass_1 === n; })) {
+                        var diagnostic = error(right, ts.Diagnostics.The_property_0_cannot_be_accessed_on_type_1_within_this_class_because_it_is_shadowed_by_another_private_identifier_with_the_same_spelling, diagName, typeToString(leftType));
+                        ts.addRelatedInfo(diagnostic, ts.createDiagnosticForNode(lexicalValueDecl, ts.Diagnostics.The_shadowing_declaration_of_0_is_defined_here, diagName), ts.createDiagnosticForNode(typeValueDecl, ts.Diagnostics.The_declaration_of_0_that_you_probably_intended_to_use_is_defined_here, diagName));
+                        return true;
+                    }
+                }
+                error(right, ts.Diagnostics.Property_0_is_not_accessible_outside_class_1_because_it_has_a_private_identifier, diagName, diagnosticName(typeClass_1.name || anon));
+                return true;
+            }
+            return false;
+        }
+        function checkPropertyAccessExpressionOrQualifiedName(node, left, leftType, right) {
+            var parentSymbol = getNodeLinks(left).resolvedSymbol;
+            var assignmentKind = ts.getAssignmentTargetKind(node);
+            var apparentType = getApparentType(assignmentKind !== 0 || isMethodAccessForCall(node) ? getWidenedType(leftType) : leftType);
+            if (ts.isPrivateIdentifier(right)) {
+                checkExternalEmitHelpers(node, 262144);
+            }
+            var isAnyLike = isTypeAny(apparentType) || apparentType === silentNeverType;
+            var prop;
+            if (ts.isPrivateIdentifier(right)) {
+                var lexicallyScopedSymbol = lookupSymbolForPrivateIdentifierDeclaration(right.escapedText, right);
+                if (isAnyLike) {
+                    if (lexicallyScopedSymbol) {
+                        return apparentType;
+                    }
+                    if (!ts.getContainingClass(right)) {
+                        grammarErrorOnNode(right, ts.Diagnostics.Private_identifiers_are_not_allowed_outside_class_bodies);
+                        return anyType;
+                    }
+                }
+                prop = lexicallyScopedSymbol ? getPrivateIdentifierPropertyOfType(leftType, lexicallyScopedSymbol) : undefined;
+                if (!prop && checkPrivateIdentifierPropertyAccess(leftType, right, lexicallyScopedSymbol)) {
+                    return errorType;
+                }
+            }
+            else {
+                if (isAnyLike) {
+                    if (ts.isIdentifier(left) && parentSymbol) {
+                        markAliasReferenced(parentSymbol, node);
+                    }
+                    return apparentType;
+                }
+                prop = getPropertyOfType(apparentType, right.escapedText);
+            }
+            if (ts.isIdentifier(left) && parentSymbol && !(prop && isConstEnumOrConstEnumOnlyModule(prop))) {
+                markAliasReferenced(parentSymbol, node);
+            }
+            var propType;
+            if (!prop) {
+                var indexInfo = !ts.isPrivateIdentifier(right) && (assignmentKind === 0 || !isGenericObjectType(leftType) || isThisTypeParameter(leftType)) ? getIndexInfoOfType(apparentType, 0) : undefined;
+                if (!(indexInfo && indexInfo.type)) {
+                    if (isJSLiteralType(leftType)) {
+                        return anyType;
+                    }
+                    if (leftType.symbol === globalThisSymbol) {
+                        if (globalThisSymbol.exports.has(right.escapedText) && (globalThisSymbol.exports.get(right.escapedText).flags & 418)) {
+                            error(right, ts.Diagnostics.Property_0_does_not_exist_on_type_1, ts.unescapeLeadingUnderscores(right.escapedText), typeToString(leftType));
+                        }
+                        else if (noImplicitAny) {
+                            error(right, ts.Diagnostics.Element_implicitly_has_an_any_type_because_type_0_has_no_index_signature, typeToString(leftType));
+                        }
+                        return anyType;
+                    }
+                    if (right.escapedText && !checkAndReportErrorForExtendingInterface(node)) {
+                        reportNonexistentProperty(right, isThisTypeParameter(leftType) ? apparentType : leftType);
+                    }
+                    return errorType;
+                }
+                if (indexInfo.isReadonly && (ts.isAssignmentTarget(node) || ts.isDeleteTarget(node))) {
+                    error(node, ts.Diagnostics.Index_signature_in_type_0_only_permits_reading, typeToString(apparentType));
+                }
+                propType = indexInfo.type;
+            }
+            else {
+                checkPropertyNotUsedBeforeDeclaration(prop, node, right);
+                markPropertyAsReferenced(prop, node, left.kind === 104);
+                getNodeLinks(node).resolvedSymbol = prop;
+                checkPropertyAccessibility(node, left.kind === 102, apparentType, prop);
+                if (isAssignmentToReadonlyEntity(node, prop, assignmentKind)) {
+                    error(right, ts.Diagnostics.Cannot_assign_to_0_because_it_is_a_read_only_property, ts.idText(right));
+                    return errorType;
+                }
+                propType = getConstraintForLocation(getTypeOfSymbol(prop), node);
+            }
+            return getFlowTypeOfAccessExpression(node, prop, propType, right);
+        }
+        function getFlowTypeOfAccessExpression(node, prop, propType, errorNode) {
+            var assignmentKind = ts.getAssignmentTargetKind(node);
+            if (!ts.isAccessExpression(node) ||
+                assignmentKind === 1 ||
+                prop && !(prop.flags & (3 | 4 | 98304)) && !(prop.flags & 8192 && propType.flags & 1048576)) {
+                return propType;
+            }
+            var assumeUninitialized = false;
+            if (strictNullChecks && strictPropertyInitialization && node.expression.kind === 104) {
+                var declaration = prop && prop.valueDeclaration;
+                if (declaration && isInstancePropertyWithoutInitializer(declaration)) {
+                    var flowContainer = getControlFlowContainer(node);
+                    if (flowContainer.kind === 162 && flowContainer.parent === declaration.parent && !(declaration.flags & 8388608)) {
+                        assumeUninitialized = true;
+                    }
+                }
+            }
+            else if (strictNullChecks && prop && prop.valueDeclaration &&
+                ts.isPropertyAccessExpression(prop.valueDeclaration) &&
+                ts.getAssignmentDeclarationPropertyAccessKind(prop.valueDeclaration) &&
+                getControlFlowContainer(node) === getControlFlowContainer(prop.valueDeclaration)) {
+                assumeUninitialized = true;
+            }
+            var flowType = getFlowTypeOfReference(node, propType, assumeUninitialized ? getOptionalType(propType) : propType);
+            if (assumeUninitialized && !(getFalsyFlags(propType) & 32768) && getFalsyFlags(flowType) & 32768) {
+                error(errorNode, ts.Diagnostics.Property_0_is_used_before_being_assigned, symbolToString(prop));
+                return propType;
+            }
+            return assignmentKind ? getBaseTypeOfLiteralType(flowType) : flowType;
+        }
+        function checkPropertyNotUsedBeforeDeclaration(prop, node, right) {
+            var valueDeclaration = prop.valueDeclaration;
+            if (!valueDeclaration || ts.getSourceFileOfNode(node).isDeclarationFile) {
+                return;
+            }
+            var diagnosticMessage;
+            var declarationName = ts.idText(right);
+            if (isInPropertyInitializer(node)
+                && !(ts.isAccessExpression(node) && ts.isAccessExpression(node.expression))
+                && !isBlockScopedNameDeclaredBeforeUse(valueDeclaration, right)
+                && !isPropertyDeclaredInAncestorClass(prop)) {
+                diagnosticMessage = error(right, ts.Diagnostics.Property_0_is_used_before_its_initialization, declarationName);
+            }
+            else if (valueDeclaration.kind === 245 &&
+                node.parent.kind !== 169 &&
+                !(valueDeclaration.flags & 8388608) &&
+                !isBlockScopedNameDeclaredBeforeUse(valueDeclaration, right)) {
+                diagnosticMessage = error(right, ts.Diagnostics.Class_0_used_before_its_declaration, declarationName);
+            }
+            if (diagnosticMessage) {
+                ts.addRelatedInfo(diagnosticMessage, ts.createDiagnosticForNode(valueDeclaration, ts.Diagnostics._0_is_declared_here, declarationName));
+            }
+        }
+        function isInPropertyInitializer(node) {
+            return !!ts.findAncestor(node, function (node) {
+                switch (node.kind) {
+                    case 159:
+                        return true;
+                    case 281:
+                    case 161:
+                    case 163:
+                    case 164:
+                    case 283:
+                    case 154:
+                    case 221:
+                    case 276:
+                    case 273:
+                    case 274:
+                    case 275:
+                    case 268:
+                    case 216:
+                    case 279:
+                        return false;
+                    default:
+                        return ts.isExpressionNode(node) ? false : "quit";
+                }
+            });
+        }
+        function isPropertyDeclaredInAncestorClass(prop) {
+            if (!(prop.parent.flags & 32)) {
+                return false;
+            }
+            var classType = getTypeOfSymbol(prop.parent);
+            while (true) {
+                classType = classType.symbol && getSuperClass(classType);
+                if (!classType) {
+                    return false;
+                }
+                var superProperty = getPropertyOfType(classType, prop.escapedName);
+                if (superProperty && superProperty.valueDeclaration) {
+                    return true;
+                }
+            }
+        }
+        function getSuperClass(classType) {
+            var x = getBaseTypes(classType);
+            if (x.length === 0) {
+                return undefined;
+            }
+            return getIntersectionType(x);
+        }
+        function reportNonexistentProperty(propNode, containingType) {
+            var errorInfo;
+            var relatedInfo;
+            if (!ts.isPrivateIdentifier(propNode) && containingType.flags & 1048576 && !(containingType.flags & 131068)) {
+                for (var _i = 0, _a = containingType.types; _i < _a.length; _i++) {
+                    var subtype = _a[_i];
+                    if (!getPropertyOfType(subtype, propNode.escapedText) && !getIndexInfoOfType(subtype, 0)) {
+                        errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.Property_0_does_not_exist_on_type_1, ts.declarationNameToString(propNode), typeToString(subtype));
+                        break;
+                    }
+                }
+            }
+            if (typeHasStaticProperty(propNode.escapedText, containingType)) {
+                errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.Property_0_is_a_static_member_of_type_1, ts.declarationNameToString(propNode), typeToString(containingType));
+            }
+            else {
+                var promisedType = getPromisedTypeOfPromise(containingType);
+                if (promisedType && getPropertyOfType(promisedType, propNode.escapedText)) {
+                    errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.Property_0_does_not_exist_on_type_1, ts.declarationNameToString(propNode), typeToString(containingType));
+                    relatedInfo = ts.createDiagnosticForNode(propNode, ts.Diagnostics.Did_you_forget_to_use_await);
+                }
+                else {
+                    var suggestion = getSuggestedSymbolForNonexistentProperty(propNode, containingType);
+                    if (suggestion !== undefined) {
+                        var suggestedName = ts.symbolName(suggestion);
+                        errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.Property_0_does_not_exist_on_type_1_Did_you_mean_2, ts.declarationNameToString(propNode), typeToString(containingType), suggestedName);
+                        relatedInfo = suggestion.valueDeclaration && ts.createDiagnosticForNode(suggestion.valueDeclaration, ts.Diagnostics._0_is_declared_here, suggestedName);
+                    }
+                    else {
+                        errorInfo = ts.chainDiagnosticMessages(elaborateNeverIntersection(errorInfo, containingType), ts.Diagnostics.Property_0_does_not_exist_on_type_1, ts.declarationNameToString(propNode), typeToString(containingType));
+                    }
+                }
+            }
+            var resultDiagnostic = ts.createDiagnosticForNodeFromMessageChain(propNode, errorInfo);
+            if (relatedInfo) {
+                ts.addRelatedInfo(resultDiagnostic, relatedInfo);
+            }
+            diagnostics.add(resultDiagnostic);
+        }
+        function typeHasStaticProperty(propName, containingType) {
+            var prop = containingType.symbol && getPropertyOfType(getTypeOfSymbol(containingType.symbol), propName);
+            return prop !== undefined && prop.valueDeclaration && ts.hasModifier(prop.valueDeclaration, 32);
+        }
+        function getSuggestedSymbolForNonexistentProperty(name, containingType) {
+            return getSpellingSuggestionForName(ts.isString(name) ? name : ts.idText(name), getPropertiesOfType(containingType), 111551);
+        }
+        function getSuggestionForNonexistentProperty(name, containingType) {
+            var suggestion = getSuggestedSymbolForNonexistentProperty(name, containingType);
+            return suggestion && ts.symbolName(suggestion);
+        }
+        function getSuggestedSymbolForNonexistentSymbol(location, outerName, meaning) {
+            ts.Debug.assert(outerName !== undefined, "outername should always be defined");
+            var result = resolveNameHelper(location, outerName, meaning, undefined, outerName, false, false, function (symbols, name, meaning) {
+                ts.Debug.assertEqual(outerName, name, "name should equal outerName");
+                var symbol = getSymbol(symbols, name, meaning);
+                return symbol || getSpellingSuggestionForName(ts.unescapeLeadingUnderscores(name), ts.arrayFrom(symbols.values()), meaning);
+            });
+            return result;
+        }
+        function getSuggestionForNonexistentSymbol(location, outerName, meaning) {
+            var symbolResult = getSuggestedSymbolForNonexistentSymbol(location, outerName, meaning);
+            return symbolResult && ts.symbolName(symbolResult);
+        }
+        function getSuggestedSymbolForNonexistentModule(name, targetModule) {
+            return targetModule.exports && getSpellingSuggestionForName(ts.idText(name), getExportsOfModuleAsArray(targetModule), 2623475);
+        }
+        function getSuggestionForNonexistentExport(name, targetModule) {
+            var suggestion = getSuggestedSymbolForNonexistentModule(name, targetModule);
+            return suggestion && ts.symbolName(suggestion);
+        }
+        function getSuggestionForNonexistentIndexSignature(objectType, expr, keyedType) {
+            function hasProp(name) {
+                var prop = getPropertyOfObjectType(objectType, name);
+                if (prop) {
+                    var s = getSingleCallSignature(getTypeOfSymbol(prop));
+                    return !!s && getMinArgumentCount(s) >= 1 && isTypeAssignableTo(keyedType, getTypeAtPosition(s, 0));
+                }
+                return false;
+            }
+            ;
+            var suggestedMethod = ts.isAssignmentTarget(expr) ? "set" : "get";
+            if (!hasProp(suggestedMethod)) {
+                return undefined;
+            }
+            var suggestion = ts.tryGetPropertyAccessOrIdentifierToString(expr.expression);
+            if (suggestion === undefined) {
+                suggestion = suggestedMethod;
+            }
+            else {
+                suggestion += "." + suggestedMethod;
+            }
+            return suggestion;
+        }
+        function getSpellingSuggestionForName(name, symbols, meaning) {
+            return ts.getSpellingSuggestion(name, symbols, getCandidateName);
+            function getCandidateName(candidate) {
+                var candidateName = ts.symbolName(candidate);
+                if (ts.startsWith(candidateName, "\"")) {
+                    return undefined;
+                }
+                if (candidate.flags & meaning) {
+                    return candidateName;
+                }
+                if (candidate.flags & 2097152) {
+                    var alias = tryResolveAlias(candidate);
+                    if (alias && alias.flags & meaning) {
+                        return candidateName;
+                    }
+                }
+                return undefined;
+            }
+        }
+        function markPropertyAsReferenced(prop, nodeForCheckWriteOnly, isThisAccess) {
+            var valueDeclaration = prop && (prop.flags & 106500) && prop.valueDeclaration;
+            if (!valueDeclaration) {
+                return;
+            }
+            var hasPrivateModifier = ts.hasModifier(valueDeclaration, 8);
+            var hasPrivateIdentifier = ts.isNamedDeclaration(prop.valueDeclaration) && ts.isPrivateIdentifier(prop.valueDeclaration.name);
+            if (!hasPrivateModifier && !hasPrivateIdentifier) {
+                return;
+            }
+            if (nodeForCheckWriteOnly && ts.isWriteOnlyAccess(nodeForCheckWriteOnly) && !(prop.flags & 65536)) {
+                return;
+            }
+            if (isThisAccess) {
+                var containingMethod = ts.findAncestor(nodeForCheckWriteOnly, ts.isFunctionLikeDeclaration);
+                if (containingMethod && containingMethod.symbol === prop) {
+                    return;
+                }
+            }
+            (ts.getCheckFlags(prop) & 1 ? getSymbolLinks(prop).target : prop).isReferenced = 67108863;
+        }
+        function isValidPropertyAccess(node, propertyName) {
+            switch (node.kind) {
+                case 194:
+                    return isValidPropertyAccessWithType(node, node.expression.kind === 102, propertyName, getWidenedType(checkExpression(node.expression)));
+                case 153:
+                    return isValidPropertyAccessWithType(node, false, propertyName, getWidenedType(checkExpression(node.left)));
+                case 188:
+                    return isValidPropertyAccessWithType(node, false, propertyName, getTypeFromTypeNode(node));
+            }
+        }
+        function isValidPropertyAccessForCompletions(node, type, property) {
+            return isValidPropertyAccessWithType(node, node.kind === 194 && node.expression.kind === 102, property.escapedName, type);
+        }
+        function isValidPropertyAccessWithType(node, isSuper, propertyName, type) {
+            if (type === errorType || isTypeAny(type)) {
+                return true;
+            }
+            var prop = getPropertyOfType(type, propertyName);
+            if (prop) {
+                if (ts.isPropertyAccessExpression(node) && prop.valueDeclaration && ts.isPrivateIdentifierPropertyDeclaration(prop.valueDeclaration)) {
+                    var declClass_1 = ts.getContainingClass(prop.valueDeclaration);
+                    return !ts.isOptionalChain(node) && !!ts.findAncestor(node, function (parent) { return parent === declClass_1; });
+                }
+                return checkPropertyAccessibility(node, isSuper, type, prop);
+            }
+            return ts.isInJSFile(node) && (type.flags & 1048576) !== 0 && type.types.some(function (elementType) { return isValidPropertyAccessWithType(node, isSuper, propertyName, elementType); });
+        }
+        function getForInVariableSymbol(node) {
+            var initializer = node.initializer;
+            if (initializer.kind === 243) {
+                var variable = initializer.declarations[0];
+                if (variable && !ts.isBindingPattern(variable.name)) {
+                    return getSymbolOfNode(variable);
+                }
+            }
+            else if (initializer.kind === 75) {
+                return getResolvedSymbol(initializer);
+            }
+            return undefined;
+        }
+        function hasNumericPropertyNames(type) {
+            return getIndexTypeOfType(type, 1) && !getIndexTypeOfType(type, 0);
+        }
+        function isForInVariableForNumericPropertyNames(expr) {
+            var e = ts.skipParentheses(expr);
+            if (e.kind === 75) {
+                var symbol = getResolvedSymbol(e);
+                if (symbol.flags & 3) {
+                    var child = expr;
+                    var node = expr.parent;
+                    while (node) {
+                        if (node.kind === 231 &&
+                            child === node.statement &&
+                            getForInVariableSymbol(node) === symbol &&
+                            hasNumericPropertyNames(getTypeOfExpression(node.expression))) {
+                            return true;
+                        }
+                        child = node;
+                        node = node.parent;
+                    }
+                }
+            }
+            return false;
+        }
+        function checkIndexedAccess(node) {
+            return node.flags & 32 ? checkElementAccessChain(node) :
+                checkElementAccessExpression(node, checkNonNullExpression(node.expression));
+        }
+        function checkElementAccessChain(node) {
+            var exprType = checkExpression(node.expression);
+            var nonOptionalType = getOptionalExpressionType(exprType, node.expression);
+            return propagateOptionalTypeMarker(checkElementAccessExpression(node, checkNonNullType(nonOptionalType, node.expression)), node, nonOptionalType !== exprType);
+        }
+        function checkElementAccessExpression(node, exprType) {
+            var objectType = ts.getAssignmentTargetKind(node) !== 0 || isMethodAccessForCall(node) ? getWidenedType(exprType) : exprType;
+            var indexExpression = node.argumentExpression;
+            var indexType = checkExpression(indexExpression);
+            if (objectType === errorType || objectType === silentNeverType) {
+                return objectType;
+            }
+            if (isConstEnumObjectType(objectType) && !ts.isStringLiteralLike(indexExpression)) {
+                error(indexExpression, ts.Diagnostics.A_const_enum_member_can_only_be_accessed_using_a_string_literal);
+                return errorType;
+            }
+            var effectiveIndexType = isForInVariableForNumericPropertyNames(indexExpression) ? numberType : indexType;
+            var accessFlags = ts.isAssignmentTarget(node) ?
+                2 | (isGenericObjectType(objectType) && !isThisTypeParameter(objectType) ? 1 : 0) :
+                0;
+            var indexedAccessType = getIndexedAccessTypeOrUndefined(objectType, effectiveIndexType, node, accessFlags) || errorType;
+            return checkIndexedAccessIndexType(getFlowTypeOfAccessExpression(node, indexedAccessType.symbol, indexedAccessType, indexExpression), node);
+        }
+        function checkThatExpressionIsProperSymbolReference(expression, expressionType, reportError) {
+            if (expressionType === errorType) {
+                return false;
+            }
+            if (!ts.isWellKnownSymbolSyntactically(expression)) {
+                return false;
+            }
+            if ((expressionType.flags & 12288) === 0) {
+                if (reportError) {
+                    error(expression, ts.Diagnostics.A_computed_property_name_of_the_form_0_must_be_of_type_symbol, ts.getTextOfNode(expression));
+                }
+                return false;
+            }
+            var leftHandSide = expression.expression;
+            var leftHandSideSymbol = getResolvedSymbol(leftHandSide);
+            if (!leftHandSideSymbol) {
+                return false;
+            }
+            var globalESSymbol = getGlobalESSymbolConstructorSymbol(true);
+            if (!globalESSymbol) {
+                return false;
+            }
+            if (leftHandSideSymbol !== globalESSymbol) {
+                if (reportError) {
+                    error(leftHandSide, ts.Diagnostics.Symbol_reference_does_not_refer_to_the_global_Symbol_constructor_object);
+                }
+                return false;
+            }
+            return true;
+        }
+        function callLikeExpressionMayHaveTypeArguments(node) {
+            return ts.isCallOrNewExpression(node) || ts.isTaggedTemplateExpression(node) || ts.isJsxOpeningLikeElement(node);
+        }
+        function resolveUntypedCall(node) {
+            if (callLikeExpressionMayHaveTypeArguments(node)) {
+                ts.forEach(node.typeArguments, checkSourceElement);
+            }
+            if (node.kind === 198) {
+                checkExpression(node.template);
+            }
+            else if (ts.isJsxOpeningLikeElement(node)) {
+                checkExpression(node.attributes);
+            }
+            else if (node.kind !== 157) {
+                ts.forEach(node.arguments, function (argument) {
+                    checkExpression(argument);
+                });
+            }
+            return anySignature;
+        }
+        function resolveErrorCall(node) {
+            resolveUntypedCall(node);
+            return unknownSignature;
+        }
+        function reorderCandidates(signatures, result, callChainFlags) {
+            var lastParent;
+            var lastSymbol;
+            var cutoffIndex = 0;
+            var index;
+            var specializedIndex = -1;
+            var spliceIndex;
+            ts.Debug.assert(!result.length);
+            for (var _i = 0, signatures_7 = signatures; _i < signatures_7.length; _i++) {
+                var signature = signatures_7[_i];
+                var symbol = signature.declaration && getSymbolOfNode(signature.declaration);
+                var parent = signature.declaration && signature.declaration.parent;
+                if (!lastSymbol || symbol === lastSymbol) {
+                    if (lastParent && parent === lastParent) {
+                        index = index + 1;
+                    }
+                    else {
+                        lastParent = parent;
+                        index = cutoffIndex;
+                    }
+                }
+                else {
+                    index = cutoffIndex = result.length;
+                    lastParent = parent;
+                }
+                lastSymbol = symbol;
+                if (signatureHasLiteralTypes(signature)) {
+                    specializedIndex++;
+                    spliceIndex = specializedIndex;
+                    cutoffIndex++;
+                }
+                else {
+                    spliceIndex = index;
+                }
+                result.splice(spliceIndex, 0, callChainFlags ? getOptionalCallSignature(signature, callChainFlags) : signature);
+            }
+        }
+        function isSpreadArgument(arg) {
+            return !!arg && (arg.kind === 213 || arg.kind === 220 && arg.isSpread);
+        }
+        function getSpreadArgumentIndex(args) {
+            return ts.findIndex(args, isSpreadArgument);
+        }
+        function acceptsVoid(t) {
+            return !!(t.flags & 16384);
+        }
+        function hasCorrectArity(node, args, signature, signatureHelpTrailingComma) {
+            if (signatureHelpTrailingComma === void 0) { signatureHelpTrailingComma = false; }
+            var argCount;
+            var callIsIncomplete = false;
+            var effectiveParameterCount = getParameterCount(signature);
+            var effectiveMinimumArguments = getMinArgumentCount(signature);
+            if (node.kind === 198) {
+                argCount = args.length;
+                if (node.template.kind === 211) {
+                    var lastSpan = ts.last(node.template.templateSpans);
+                    callIsIncomplete = ts.nodeIsMissing(lastSpan.literal) || !!lastSpan.literal.isUnterminated;
+                }
+                else {
+                    var templateLiteral = node.template;
+                    ts.Debug.assert(templateLiteral.kind === 14);
+                    callIsIncomplete = !!templateLiteral.isUnterminated;
+                }
+            }
+            else if (node.kind === 157) {
+                argCount = getDecoratorArgumentCount(node, signature);
+            }
+            else if (ts.isJsxOpeningLikeElement(node)) {
+                callIsIncomplete = node.attributes.end === node.end;
+                if (callIsIncomplete) {
+                    return true;
+                }
+                argCount = effectiveMinimumArguments === 0 ? args.length : 1;
+                effectiveParameterCount = args.length === 0 ? effectiveParameterCount : 1;
+                effectiveMinimumArguments = Math.min(effectiveMinimumArguments, 1);
+            }
+            else {
+                if (!node.arguments) {
+                    ts.Debug.assert(node.kind === 197);
+                    return getMinArgumentCount(signature) === 0;
+                }
+                argCount = signatureHelpTrailingComma ? args.length + 1 : args.length;
+                callIsIncomplete = node.arguments.end === node.end;
+                var spreadArgIndex = getSpreadArgumentIndex(args);
+                if (spreadArgIndex >= 0) {
+                    return spreadArgIndex >= getMinArgumentCount(signature) && (hasEffectiveRestParameter(signature) || spreadArgIndex < getParameterCount(signature));
+                }
+            }
+            if (!hasEffectiveRestParameter(signature) && argCount > effectiveParameterCount) {
+                return false;
+            }
+            if (callIsIncomplete || argCount >= effectiveMinimumArguments) {
+                return true;
+            }
+            for (var i = argCount; i < effectiveMinimumArguments; i++) {
+                var type = getTypeAtPosition(signature, i);
+                if (filterType(type, acceptsVoid).flags & 131072) {
+                    return false;
+                }
+            }
+            return true;
+        }
+        function hasCorrectTypeArgumentArity(signature, typeArguments) {
+            var numTypeParameters = ts.length(signature.typeParameters);
+            var minTypeArgumentCount = getMinTypeArgumentCount(signature.typeParameters);
+            return !ts.some(typeArguments) ||
+                (typeArguments.length >= minTypeArgumentCount && typeArguments.length <= numTypeParameters);
+        }
+        function getSingleCallSignature(type) {
+            return getSingleSignature(type, 0, false);
+        }
+        function getSingleCallOrConstructSignature(type) {
+            return getSingleSignature(type, 0, false) ||
+                getSingleSignature(type, 1, false);
+        }
+        function getSingleSignature(type, kind, allowMembers) {
+            if (type.flags & 524288) {
+                var resolved = resolveStructuredTypeMembers(type);
+                if (allowMembers || resolved.properties.length === 0 && !resolved.stringIndexInfo && !resolved.numberIndexInfo) {
+                    if (kind === 0 && resolved.callSignatures.length === 1 && resolved.constructSignatures.length === 0) {
+                        return resolved.callSignatures[0];
+                    }
+                    if (kind === 1 && resolved.constructSignatures.length === 1 && resolved.callSignatures.length === 0) {
+                        return resolved.constructSignatures[0];
+                    }
+                }
+            }
+            return undefined;
+        }
+        function instantiateSignatureInContextOf(signature, contextualSignature, inferenceContext, compareTypes) {
+            var context = createInferenceContext(signature.typeParameters, signature, 0, compareTypes);
+            var restType = getEffectiveRestType(contextualSignature);
+            var mapper = inferenceContext && (restType && restType.flags & 262144 ? inferenceContext.nonFixingMapper : inferenceContext.mapper);
+            var sourceSignature = mapper ? instantiateSignature(contextualSignature, mapper) : contextualSignature;
+            applyToParameterTypes(sourceSignature, signature, function (source, target) {
+                inferTypes(context.inferences, source, target);
+            });
+            if (!inferenceContext) {
+                applyToReturnTypes(contextualSignature, signature, function (source, target) {
+                    inferTypes(context.inferences, source, target, 32);
+                });
+            }
+            return getSignatureInstantiation(signature, getInferredTypes(context), ts.isInJSFile(contextualSignature.declaration));
+        }
+        function inferJsxTypeArguments(node, signature, checkMode, context) {
+            var paramType = getEffectiveFirstArgumentForJsxSignature(signature, node);
+            var checkAttrType = checkExpressionWithContextualType(node.attributes, paramType, context, checkMode);
+            inferTypes(context.inferences, checkAttrType, paramType);
+            return getInferredTypes(context);
+        }
+        function inferTypeArguments(node, signature, args, checkMode, context) {
+            if (ts.isJsxOpeningLikeElement(node)) {
+                return inferJsxTypeArguments(node, signature, checkMode, context);
+            }
+            if (node.kind !== 157) {
+                var contextualType = getContextualType(node);
+                if (contextualType) {
+                    var outerContext = getInferenceContext(node);
+                    var outerMapper = getMapperFromContext(cloneInferenceContext(outerContext, 1));
+                    var instantiatedType = instantiateType(contextualType, outerMapper);
+                    var contextualSignature = getSingleCallSignature(instantiatedType);
+                    var inferenceSourceType = contextualSignature && contextualSignature.typeParameters ?
+                        getOrCreateTypeFromSignature(getSignatureInstantiationWithoutFillingInTypeArguments(contextualSignature, contextualSignature.typeParameters)) :
+                        instantiatedType;
+                    var inferenceTargetType = getReturnTypeOfSignature(signature);
+                    inferTypes(context.inferences, inferenceSourceType, inferenceTargetType, 32);
+                    var returnContext = createInferenceContext(signature.typeParameters, signature, context.flags);
+                    var returnSourceType = instantiateType(contextualType, outerContext && outerContext.returnMapper);
+                    inferTypes(returnContext.inferences, returnSourceType, inferenceTargetType);
+                    context.returnMapper = ts.some(returnContext.inferences, hasInferenceCandidates) ? getMapperFromContext(cloneInferredPartOfContext(returnContext)) : undefined;
+                }
+            }
+            var thisType = getThisTypeOfSignature(signature);
+            if (thisType) {
+                var thisArgumentNode = getThisArgumentOfCall(node);
+                var thisArgumentType = thisArgumentNode ? checkExpression(thisArgumentNode) : voidType;
+                inferTypes(context.inferences, thisArgumentType, thisType);
+            }
+            var restType = getNonArrayRestType(signature);
+            var argCount = restType ? Math.min(getParameterCount(signature) - 1, args.length) : args.length;
+            for (var i = 0; i < argCount; i++) {
+                var arg = args[i];
+                if (arg.kind !== 215) {
+                    var paramType = getTypeAtPosition(signature, i);
+                    var argType = checkExpressionWithContextualType(arg, paramType, context, checkMode);
+                    inferTypes(context.inferences, argType, paramType);
+                }
+            }
+            if (restType) {
+                var spreadType = getSpreadArgumentType(args, argCount, args.length, restType, context);
+                inferTypes(context.inferences, spreadType, restType);
+            }
+            return getInferredTypes(context);
+        }
+        function getArrayifiedType(type) {
+            return type.flags & 1048576 ? mapType(type, getArrayifiedType) :
+                type.flags & (1 | 63176704) || isMutableArrayOrTuple(type) ? type :
+                    isTupleType(type) ? createTupleType(getTypeArguments(type), type.target.minLength, type.target.hasRestElement, false, type.target.associatedNames) :
+                        createArrayType(getIndexedAccessType(type, numberType));
+        }
+        function getSpreadArgumentType(args, index, argCount, restType, context) {
+            if (index >= argCount - 1) {
+                var arg = args[argCount - 1];
+                if (isSpreadArgument(arg)) {
+                    return arg.kind === 220 ?
+                        createArrayType(arg.type) :
+                        getArrayifiedType(checkExpressionWithContextualType(arg.expression, restType, context, 0));
+                }
+            }
+            var types = [];
+            var spreadIndex = -1;
+            for (var i = index; i < argCount; i++) {
+                var contextualType = getIndexedAccessType(restType, getLiteralType(i - index));
+                var argType = checkExpressionWithContextualType(args[i], contextualType, context, 0);
+                if (spreadIndex < 0 && isSpreadArgument(args[i])) {
+                    spreadIndex = i - index;
+                }
+                var hasPrimitiveContextualType = maybeTypeOfKind(contextualType, 131068 | 4194304);
+                types.push(hasPrimitiveContextualType ? getRegularTypeOfLiteralType(argType) : getWidenedLiteralType(argType));
+            }
+            return spreadIndex < 0 ?
+                createTupleType(types) :
+                createTupleType(ts.append(types.slice(0, spreadIndex), getUnionType(types.slice(spreadIndex))), spreadIndex, true);
+        }
+        function checkTypeArguments(signature, typeArgumentNodes, reportErrors, headMessage) {
+            var isJavascript = ts.isInJSFile(signature.declaration);
+            var typeParameters = signature.typeParameters;
+            var typeArgumentTypes = fillMissingTypeArguments(ts.map(typeArgumentNodes, getTypeFromTypeNode), typeParameters, getMinTypeArgumentCount(typeParameters), isJavascript);
+            var mapper;
+            for (var i = 0; i < typeArgumentNodes.length; i++) {
+                ts.Debug.assert(typeParameters[i] !== undefined, "Should not call checkTypeArguments with too many type arguments");
+                var constraint = getConstraintOfTypeParameter(typeParameters[i]);
+                if (constraint) {
+                    var errorInfo = reportErrors && headMessage ? (function () { return ts.chainDiagnosticMessages(undefined, ts.Diagnostics.Type_0_does_not_satisfy_the_constraint_1); }) : undefined;
+                    var typeArgumentHeadMessage = headMessage || ts.Diagnostics.Type_0_does_not_satisfy_the_constraint_1;
+                    if (!mapper) {
+                        mapper = createTypeMapper(typeParameters, typeArgumentTypes);
+                    }
+                    var typeArgument = typeArgumentTypes[i];
+                    if (!checkTypeAssignableTo(typeArgument, getTypeWithThisArgument(instantiateType(constraint, mapper), typeArgument), reportErrors ? typeArgumentNodes[i] : undefined, typeArgumentHeadMessage, errorInfo)) {
+                        return undefined;
+                    }
+                }
+            }
+            return typeArgumentTypes;
+        }
+        function getJsxReferenceKind(node) {
+            if (isJsxIntrinsicIdentifier(node.tagName)) {
+                return 2;
+            }
+            var tagType = getApparentType(checkExpression(node.tagName));
+            if (ts.length(getSignaturesOfType(tagType, 1))) {
+                return 0;
+            }
+            if (ts.length(getSignaturesOfType(tagType, 0))) {
+                return 1;
+            }
+            return 2;
+        }
+        function checkApplicableSignatureForJsxOpeningLikeElement(node, signature, relation, checkMode, reportErrors, containingMessageChain, errorOutputContainer) {
+            var paramType = getEffectiveFirstArgumentForJsxSignature(signature, node);
+            var attributesType = checkExpressionWithContextualType(node.attributes, paramType, undefined, checkMode);
+            return checkTagNameDoesNotExpectTooManyArguments() && checkTypeRelatedToAndOptionallyElaborate(attributesType, paramType, relation, reportErrors ? node.tagName : undefined, node.attributes, undefined, containingMessageChain, errorOutputContainer);
+            function checkTagNameDoesNotExpectTooManyArguments() {
+                var _a;
+                var tagType = ts.isJsxOpeningElement(node) || ts.isJsxSelfClosingElement(node) && !isJsxIntrinsicIdentifier(node.tagName) ? checkExpression(node.tagName) : undefined;
+                if (!tagType) {
+                    return true;
+                }
+                var tagCallSignatures = getSignaturesOfType(tagType, 0);
+                if (!ts.length(tagCallSignatures)) {
+                    return true;
+                }
+                var factory = getJsxFactoryEntity(node);
+                if (!factory) {
+                    return true;
+                }
+                var factorySymbol = resolveEntityName(factory, 111551, true, false, node);
+                if (!factorySymbol) {
+                    return true;
+                }
+                var factoryType = getTypeOfSymbol(factorySymbol);
+                var callSignatures = getSignaturesOfType(factoryType, 0);
+                if (!ts.length(callSignatures)) {
+                    return true;
+                }
+                var hasFirstParamSignatures = false;
+                var maxParamCount = 0;
+                for (var _i = 0, callSignatures_1 = callSignatures; _i < callSignatures_1.length; _i++) {
+                    var sig = callSignatures_1[_i];
+                    var firstparam = getTypeAtPosition(sig, 0);
+                    var signaturesOfParam = getSignaturesOfType(firstparam, 0);
+                    if (!ts.length(signaturesOfParam))
+                        continue;
+                    for (var _b = 0, signaturesOfParam_1 = signaturesOfParam; _b < signaturesOfParam_1.length; _b++) {
+                        var paramSig = signaturesOfParam_1[_b];
+                        hasFirstParamSignatures = true;
+                        if (hasEffectiveRestParameter(paramSig)) {
+                            return true;
+                        }
+                        var paramCount = getParameterCount(paramSig);
+                        if (paramCount > maxParamCount) {
+                            maxParamCount = paramCount;
+                        }
+                    }
+                }
+                if (!hasFirstParamSignatures) {
+                    return true;
+                }
+                var absoluteMinArgCount = Infinity;
+                for (var _c = 0, tagCallSignatures_1 = tagCallSignatures; _c < tagCallSignatures_1.length; _c++) {
+                    var tagSig = tagCallSignatures_1[_c];
+                    var tagRequiredArgCount = getMinArgumentCount(tagSig);
+                    if (tagRequiredArgCount < absoluteMinArgCount) {
+                        absoluteMinArgCount = tagRequiredArgCount;
+                    }
+                }
+                if (absoluteMinArgCount <= maxParamCount) {
+                    return true;
+                }
+                if (reportErrors) {
+                    var diag = ts.createDiagnosticForNode(node.tagName, ts.Diagnostics.Tag_0_expects_at_least_1_arguments_but_the_JSX_factory_2_provides_at_most_3, ts.entityNameToString(node.tagName), absoluteMinArgCount, ts.entityNameToString(factory), maxParamCount);
+                    var tagNameDeclaration = (_a = getSymbolAtLocation(node.tagName)) === null || _a === void 0 ? void 0 : _a.valueDeclaration;
+                    if (tagNameDeclaration) {
+                        ts.addRelatedInfo(diag, ts.createDiagnosticForNode(tagNameDeclaration, ts.Diagnostics._0_is_declared_here, ts.entityNameToString(node.tagName)));
+                    }
+                    if (errorOutputContainer && errorOutputContainer.skipLogging) {
+                        (errorOutputContainer.errors || (errorOutputContainer.errors = [])).push(diag);
+                    }
+                    if (!errorOutputContainer.skipLogging) {
+                        diagnostics.add(diag);
+                    }
+                }
+                return false;
+            }
+        }
+        function getSignatureApplicabilityError(node, args, signature, relation, checkMode, reportErrors, containingMessageChain) {
+            var errorOutputContainer = { errors: undefined, skipLogging: true };
+            if (ts.isJsxOpeningLikeElement(node)) {
+                if (!checkApplicableSignatureForJsxOpeningLikeElement(node, signature, relation, checkMode, reportErrors, containingMessageChain, errorOutputContainer)) {
+                    ts.Debug.assert(!reportErrors || !!errorOutputContainer.errors, "jsx should have errors when reporting errors");
+                    return errorOutputContainer.errors || ts.emptyArray;
+                }
+                return undefined;
+            }
+            var thisType = getThisTypeOfSignature(signature);
+            if (thisType && thisType !== voidType && node.kind !== 197) {
+                var thisArgumentNode = getThisArgumentOfCall(node);
+                var thisArgumentType = void 0;
+                if (thisArgumentNode) {
+                    thisArgumentType = checkExpression(thisArgumentNode);
+                    if (ts.isOptionalChainRoot(thisArgumentNode.parent)) {
+                        thisArgumentType = getNonNullableType(thisArgumentType);
+                    }
+                    else if (ts.isOptionalChain(thisArgumentNode.parent)) {
+                        thisArgumentType = removeOptionalTypeMarker(thisArgumentType);
+                    }
+                }
+                else {
+                    thisArgumentType = voidType;
+                }
+                var errorNode = reportErrors ? (thisArgumentNode || node) : undefined;
+                var headMessage_1 = ts.Diagnostics.The_this_context_of_type_0_is_not_assignable_to_method_s_this_of_type_1;
+                if (!checkTypeRelatedTo(thisArgumentType, thisType, relation, errorNode, headMessage_1, containingMessageChain, errorOutputContainer)) {
+                    ts.Debug.assert(!reportErrors || !!errorOutputContainer.errors, "this parameter should have errors when reporting errors");
+                    return errorOutputContainer.errors || ts.emptyArray;
+                }
+            }
+            var headMessage = ts.Diagnostics.Argument_of_type_0_is_not_assignable_to_parameter_of_type_1;
+            var restType = getNonArrayRestType(signature);
+            var argCount = restType ? Math.min(getParameterCount(signature) - 1, args.length) : args.length;
+            for (var i = 0; i < argCount; i++) {
+                var arg = args[i];
+                if (arg.kind !== 215) {
+                    var paramType = getTypeAtPosition(signature, i);
+                    var argType = checkExpressionWithContextualType(arg, paramType, undefined, checkMode);
+                    var checkArgType = checkMode & 4 ? getRegularTypeOfObjectLiteral(argType) : argType;
+                    if (!checkTypeRelatedToAndOptionallyElaborate(checkArgType, paramType, relation, reportErrors ? arg : undefined, arg, headMessage, containingMessageChain, errorOutputContainer)) {
+                        ts.Debug.assert(!reportErrors || !!errorOutputContainer.errors, "parameter should have errors when reporting errors");
+                        maybeAddMissingAwaitInfo(arg, checkArgType, paramType);
+                        return errorOutputContainer.errors || ts.emptyArray;
+                    }
+                }
+            }
+            if (restType) {
+                var spreadType = getSpreadArgumentType(args, argCount, args.length, restType, undefined);
+                var errorNode = reportErrors ? argCount < args.length ? args[argCount] : node : undefined;
+                if (!checkTypeRelatedTo(spreadType, restType, relation, errorNode, headMessage, undefined, errorOutputContainer)) {
+                    ts.Debug.assert(!reportErrors || !!errorOutputContainer.errors, "rest parameter should have errors when reporting errors");
+                    maybeAddMissingAwaitInfo(errorNode, spreadType, restType);
+                    return errorOutputContainer.errors || ts.emptyArray;
+                }
+            }
+            return undefined;
+            function maybeAddMissingAwaitInfo(errorNode, source, target) {
+                if (errorNode && reportErrors && errorOutputContainer.errors && errorOutputContainer.errors.length) {
+                    if (getAwaitedTypeOfPromise(target)) {
+                        return;
+                    }
+                    var awaitedTypeOfSource = getAwaitedTypeOfPromise(source);
+                    if (awaitedTypeOfSource && isTypeRelatedTo(awaitedTypeOfSource, target, relation)) {
+                        ts.addRelatedInfo(errorOutputContainer.errors[0], ts.createDiagnosticForNode(errorNode, ts.Diagnostics.Did_you_forget_to_use_await));
+                    }
+                }
+            }
+        }
+        function getThisArgumentOfCall(node) {
+            if (node.kind === 196) {
+                var callee = ts.skipOuterExpressions(node.expression);
+                if (ts.isAccessExpression(callee)) {
+                    return callee.expression;
+                }
+            }
+        }
+        function createSyntheticExpression(parent, type, isSpread) {
+            var result = ts.createNode(220, parent.pos, parent.end);
+            result.parent = parent;
+            result.type = type;
+            result.isSpread = isSpread || false;
+            return result;
+        }
+        function getEffectiveCallArguments(node) {
+            if (node.kind === 198) {
+                var template = node.template;
+                var args_3 = [createSyntheticExpression(template, getGlobalTemplateStringsArrayType())];
+                if (template.kind === 211) {
+                    ts.forEach(template.templateSpans, function (span) {
+                        args_3.push(span.expression);
+                    });
+                }
+                return args_3;
+            }
+            if (node.kind === 157) {
+                return getEffectiveDecoratorArguments(node);
+            }
+            if (ts.isJsxOpeningLikeElement(node)) {
+                return node.attributes.properties.length > 0 || (ts.isJsxOpeningElement(node) && node.parent.children.length > 0) ? [node.attributes] : ts.emptyArray;
+            }
+            var args = node.arguments || ts.emptyArray;
+            var length = args.length;
+            if (length && isSpreadArgument(args[length - 1]) && getSpreadArgumentIndex(args) === length - 1) {
+                var spreadArgument_1 = args[length - 1];
+                var type = flowLoopCount ? checkExpression(spreadArgument_1.expression) : checkExpressionCached(spreadArgument_1.expression);
+                if (isTupleType(type)) {
+                    var typeArguments = getTypeArguments(type);
+                    var restIndex_2 = type.target.hasRestElement ? typeArguments.length - 1 : -1;
+                    var syntheticArgs = ts.map(typeArguments, function (t, i) { return createSyntheticExpression(spreadArgument_1, t, i === restIndex_2); });
+                    return ts.concatenate(args.slice(0, length - 1), syntheticArgs);
+                }
+            }
+            return args;
+        }
+        function getEffectiveDecoratorArguments(node) {
+            var parent = node.parent;
+            var expr = node.expression;
+            switch (parent.kind) {
+                case 245:
+                case 214:
+                    return [
+                        createSyntheticExpression(expr, getTypeOfSymbol(getSymbolOfNode(parent)))
+                    ];
+                case 156:
+                    var func = parent.parent;
+                    return [
+                        createSyntheticExpression(expr, parent.parent.kind === 162 ? getTypeOfSymbol(getSymbolOfNode(func)) : errorType),
+                        createSyntheticExpression(expr, anyType),
+                        createSyntheticExpression(expr, numberType)
+                    ];
+                case 159:
+                case 161:
+                case 163:
+                case 164:
+                    var hasPropDesc = parent.kind !== 159 && languageVersion !== 0;
+                    return [
+                        createSyntheticExpression(expr, getParentTypeOfClassElement(parent)),
+                        createSyntheticExpression(expr, getClassElementPropertyKeyType(parent)),
+                        createSyntheticExpression(expr, hasPropDesc ? createTypedPropertyDescriptorType(getTypeOfNode(parent)) : anyType)
+                    ];
+            }
+            return ts.Debug.fail();
+        }
+        function getDecoratorArgumentCount(node, signature) {
+            switch (node.parent.kind) {
+                case 245:
+                case 214:
+                    return 1;
+                case 159:
+                    return 2;
+                case 161:
+                case 163:
+                case 164:
+                    return languageVersion === 0 || signature.parameters.length <= 2 ? 2 : 3;
+                case 156:
+                    return 3;
+                default:
+                    return ts.Debug.fail();
+            }
+        }
+        function getDiagnosticSpanForCallNode(node, doNotIncludeArguments) {
+            var start;
+            var length;
+            var sourceFile = ts.getSourceFileOfNode(node);
+            if (ts.isPropertyAccessExpression(node.expression)) {
+                var nameSpan = ts.getErrorSpanForNode(sourceFile, node.expression.name);
+                start = nameSpan.start;
+                length = doNotIncludeArguments ? nameSpan.length : node.end - start;
+            }
+            else {
+                var expressionSpan = ts.getErrorSpanForNode(sourceFile, node.expression);
+                start = expressionSpan.start;
+                length = doNotIncludeArguments ? expressionSpan.length : node.end - start;
+            }
+            return { start: start, length: length, sourceFile: sourceFile };
+        }
+        function getDiagnosticForCallNode(node, message, arg0, arg1, arg2, arg3) {
+            if (ts.isCallExpression(node)) {
+                var _a = getDiagnosticSpanForCallNode(node), sourceFile = _a.sourceFile, start = _a.start, length_5 = _a.length;
+                return ts.createFileDiagnostic(sourceFile, start, length_5, message, arg0, arg1, arg2, arg3);
+            }
+            else {
+                return ts.createDiagnosticForNode(node, message, arg0, arg1, arg2, arg3);
+            }
+        }
+        function getArgumentArityError(node, signatures, args) {
+            var min = Number.POSITIVE_INFINITY;
+            var max = Number.NEGATIVE_INFINITY;
+            var belowArgCount = Number.NEGATIVE_INFINITY;
+            var aboveArgCount = Number.POSITIVE_INFINITY;
+            var argCount = args.length;
+            var closestSignature;
+            for (var _i = 0, signatures_8 = signatures; _i < signatures_8.length; _i++) {
+                var sig = signatures_8[_i];
+                var minCount = getMinArgumentCount(sig);
+                var maxCount = getParameterCount(sig);
+                if (minCount < argCount && minCount > belowArgCount)
+                    belowArgCount = minCount;
+                if (argCount < maxCount && maxCount < aboveArgCount)
+                    aboveArgCount = maxCount;
+                if (minCount < min) {
+                    min = minCount;
+                    closestSignature = sig;
+                }
+                max = Math.max(max, maxCount);
+            }
+            var hasRestParameter = ts.some(signatures, hasEffectiveRestParameter);
+            var paramRange = hasRestParameter ? min :
+                min < max ? min + "-" + max :
+                    min;
+            var hasSpreadArgument = getSpreadArgumentIndex(args) > -1;
+            if (argCount <= max && hasSpreadArgument) {
+                argCount--;
+            }
+            var spanArray;
+            var related;
+            var error = hasRestParameter || hasSpreadArgument ? hasRestParameter && hasSpreadArgument ? ts.Diagnostics.Expected_at_least_0_arguments_but_got_1_or_more :
+                hasRestParameter ? ts.Diagnostics.Expected_at_least_0_arguments_but_got_1 :
+                    ts.Diagnostics.Expected_0_arguments_but_got_1_or_more : ts.Diagnostics.Expected_0_arguments_but_got_1;
+            if (closestSignature && getMinArgumentCount(closestSignature) > argCount && closestSignature.declaration) {
+                var paramDecl = closestSignature.declaration.parameters[closestSignature.thisParameter ? argCount + 1 : argCount];
+                if (paramDecl) {
+                    related = ts.createDiagnosticForNode(paramDecl, ts.isBindingPattern(paramDecl.name) ? ts.Diagnostics.An_argument_matching_this_binding_pattern_was_not_provided : ts.Diagnostics.An_argument_for_0_was_not_provided, !paramDecl.name ? argCount : !ts.isBindingPattern(paramDecl.name) ? ts.idText(ts.getFirstIdentifier(paramDecl.name)) : undefined);
+                }
+            }
+            if (min < argCount && argCount < max) {
+                return getDiagnosticForCallNode(node, ts.Diagnostics.No_overload_expects_0_arguments_but_overloads_do_exist_that_expect_either_1_or_2_arguments, argCount, belowArgCount, aboveArgCount);
+            }
+            if (!hasSpreadArgument && argCount < min) {
+                var diagnostic_1 = getDiagnosticForCallNode(node, error, paramRange, argCount);
+                return related ? ts.addRelatedInfo(diagnostic_1, related) : diagnostic_1;
+            }
+            if (hasRestParameter || hasSpreadArgument) {
+                spanArray = ts.createNodeArray(args);
+                if (hasSpreadArgument && argCount) {
+                    var nextArg = ts.elementAt(args, getSpreadArgumentIndex(args) + 1) || undefined;
+                    spanArray = ts.createNodeArray(args.slice(max > argCount && nextArg ? args.indexOf(nextArg) : Math.min(max, args.length - 1)));
+                }
+            }
+            else {
+                spanArray = ts.createNodeArray(args.slice(max));
+            }
+            spanArray.pos = ts.first(spanArray).pos;
+            spanArray.end = ts.last(spanArray).end;
+            if (spanArray.end === spanArray.pos) {
+                spanArray.end++;
+            }
+            var diagnostic = ts.createDiagnosticForNodeArray(ts.getSourceFileOfNode(node), spanArray, error, paramRange, argCount);
+            return related ? ts.addRelatedInfo(diagnostic, related) : diagnostic;
+        }
+        function getTypeArgumentArityError(node, signatures, typeArguments) {
+            var argCount = typeArguments.length;
+            if (signatures.length === 1) {
+                var sig = signatures[0];
+                var min_1 = getMinTypeArgumentCount(sig.typeParameters);
+                var max = ts.length(sig.typeParameters);
+                return ts.createDiagnosticForNodeArray(ts.getSourceFileOfNode(node), typeArguments, ts.Diagnostics.Expected_0_type_arguments_but_got_1, min_1 < max ? min_1 + "-" + max : min_1, argCount);
+            }
+            var belowArgCount = -Infinity;
+            var aboveArgCount = Infinity;
+            for (var _i = 0, signatures_9 = signatures; _i < signatures_9.length; _i++) {
+                var sig = signatures_9[_i];
+                var min_2 = getMinTypeArgumentCount(sig.typeParameters);
+                var max = ts.length(sig.typeParameters);
+                if (min_2 > argCount) {
+                    aboveArgCount = Math.min(aboveArgCount, min_2);
+                }
+                else if (max < argCount) {
+                    belowArgCount = Math.max(belowArgCount, max);
+                }
+            }
+            if (belowArgCount !== -Infinity && aboveArgCount !== Infinity) {
+                return ts.createDiagnosticForNodeArray(ts.getSourceFileOfNode(node), typeArguments, ts.Diagnostics.No_overload_expects_0_type_arguments_but_overloads_do_exist_that_expect_either_1_or_2_type_arguments, argCount, belowArgCount, aboveArgCount);
+            }
+            return ts.createDiagnosticForNodeArray(ts.getSourceFileOfNode(node), typeArguments, ts.Diagnostics.Expected_0_type_arguments_but_got_1, belowArgCount === -Infinity ? aboveArgCount : belowArgCount, argCount);
+        }
+        function resolveCall(node, signatures, candidatesOutArray, checkMode, callChainFlags, fallbackError) {
+            var isTaggedTemplate = node.kind === 198;
+            var isDecorator = node.kind === 157;
+            var isJsxOpeningOrSelfClosingElement = ts.isJsxOpeningLikeElement(node);
+            var reportErrors = !candidatesOutArray;
+            var typeArguments;
+            if (!isDecorator) {
+                typeArguments = node.typeArguments;
+                if (isTaggedTemplate || isJsxOpeningOrSelfClosingElement || node.expression.kind !== 102) {
+                    ts.forEach(typeArguments, checkSourceElement);
+                }
+            }
+            var candidates = candidatesOutArray || [];
+            reorderCandidates(signatures, candidates, callChainFlags);
+            if (!candidates.length) {
+                if (reportErrors) {
+                    diagnostics.add(getDiagnosticForCallNode(node, ts.Diagnostics.Call_target_does_not_contain_any_signatures));
+                }
+                return resolveErrorCall(node);
+            }
+            var args = getEffectiveCallArguments(node);
+            var isSingleNonGenericCandidate = candidates.length === 1 && !candidates[0].typeParameters;
+            var argCheckMode = !isDecorator && !isSingleNonGenericCandidate && ts.some(args, isContextSensitive) ? 4 : 0;
+            var candidatesForArgumentError;
+            var candidateForArgumentArityError;
+            var candidateForTypeArgumentError;
+            var result;
+            var signatureHelpTrailingComma = !!(checkMode & 16) && node.kind === 196 && node.arguments.hasTrailingComma;
+            if (candidates.length > 1) {
+                result = chooseOverload(candidates, subtypeRelation, signatureHelpTrailingComma);
+            }
+            if (!result) {
+                result = chooseOverload(candidates, assignableRelation, signatureHelpTrailingComma);
+            }
+            if (result) {
+                return result;
+            }
+            if (reportErrors) {
+                if (candidatesForArgumentError) {
+                    if (candidatesForArgumentError.length === 1 || candidatesForArgumentError.length > 3) {
+                        var last_2 = candidatesForArgumentError[candidatesForArgumentError.length - 1];
+                        var chain_1;
+                        if (candidatesForArgumentError.length > 3) {
+                            chain_1 = ts.chainDiagnosticMessages(chain_1, ts.Diagnostics.The_last_overload_gave_the_following_error);
+                            chain_1 = ts.chainDiagnosticMessages(chain_1, ts.Diagnostics.No_overload_matches_this_call);
+                        }
+                        var diags = getSignatureApplicabilityError(node, args, last_2, assignableRelation, 0, true, function () { return chain_1; });
+                        if (diags) {
+                            for (var _i = 0, diags_1 = diags; _i < diags_1.length; _i++) {
+                                var d = diags_1[_i];
+                                if (last_2.declaration && candidatesForArgumentError.length > 3) {
+                                    ts.addRelatedInfo(d, ts.createDiagnosticForNode(last_2.declaration, ts.Diagnostics.The_last_overload_is_declared_here));
+                                }
+                                diagnostics.add(d);
+                            }
+                        }
+                        else {
+                            ts.Debug.fail("No error for last overload signature");
+                        }
+                    }
+                    else {
+                        var allDiagnostics = [];
+                        var max = 0;
+                        var min_3 = Number.MAX_VALUE;
+                        var minIndex = 0;
+                        var i_1 = 0;
+                        var _loop_17 = function (c) {
+                            var chain_2 = function () { return ts.chainDiagnosticMessages(undefined, ts.Diagnostics.Overload_0_of_1_2_gave_the_following_error, i_1 + 1, candidates.length, signatureToString(c)); };
+                            var diags_2 = getSignatureApplicabilityError(node, args, c, assignableRelation, 0, true, chain_2);
+                            if (diags_2) {
+                                if (diags_2.length <= min_3) {
+                                    min_3 = diags_2.length;
+                                    minIndex = i_1;
+                                }
+                                max = Math.max(max, diags_2.length);
+                                allDiagnostics.push(diags_2);
+                            }
+                            else {
+                                ts.Debug.fail("No error for 3 or fewer overload signatures");
+                            }
+                            i_1++;
+                        };
+                        for (var _a = 0, candidatesForArgumentError_1 = candidatesForArgumentError; _a < candidatesForArgumentError_1.length; _a++) {
+                            var c = candidatesForArgumentError_1[_a];
+                            _loop_17(c);
+                        }
+                        var diags_3 = max > 1 ? allDiagnostics[minIndex] : ts.flatten(allDiagnostics);
+                        ts.Debug.assert(diags_3.length > 0, "No errors reported for 3 or fewer overload signatures");
+                        var chain = ts.chainDiagnosticMessages(ts.map(diags_3, function (d) { return typeof d.messageText === "string" ? d : d.messageText; }), ts.Diagnostics.No_overload_matches_this_call);
+                        var related = ts.flatMap(diags_3, function (d) { return d.relatedInformation; });
+                        if (ts.every(diags_3, function (d) { return d.start === diags_3[0].start && d.length === diags_3[0].length && d.file === diags_3[0].file; })) {
+                            var _b = diags_3[0], file = _b.file, start = _b.start, length_6 = _b.length;
+                            diagnostics.add({ file: file, start: start, length: length_6, code: chain.code, category: chain.category, messageText: chain, relatedInformation: related });
+                        }
+                        else {
+                            diagnostics.add(ts.createDiagnosticForNodeFromMessageChain(node, chain, related));
+                        }
+                    }
+                }
+                else if (candidateForArgumentArityError) {
+                    diagnostics.add(getArgumentArityError(node, [candidateForArgumentArityError], args));
+                }
+                else if (candidateForTypeArgumentError) {
+                    checkTypeArguments(candidateForTypeArgumentError, node.typeArguments, true, fallbackError);
+                }
+                else {
+                    var signaturesWithCorrectTypeArgumentArity = ts.filter(signatures, function (s) { return hasCorrectTypeArgumentArity(s, typeArguments); });
+                    if (signaturesWithCorrectTypeArgumentArity.length === 0) {
+                        diagnostics.add(getTypeArgumentArityError(node, signatures, typeArguments));
+                    }
+                    else if (!isDecorator) {
+                        diagnostics.add(getArgumentArityError(node, signaturesWithCorrectTypeArgumentArity, args));
+                    }
+                    else if (fallbackError) {
+                        diagnostics.add(getDiagnosticForCallNode(node, fallbackError));
+                    }
+                }
+            }
+            return getCandidateForOverloadFailure(node, candidates, args, !!candidatesOutArray);
+            function chooseOverload(candidates, relation, signatureHelpTrailingComma) {
+                if (signatureHelpTrailingComma === void 0) { signatureHelpTrailingComma = false; }
+                candidatesForArgumentError = undefined;
+                candidateForArgumentArityError = undefined;
+                candidateForTypeArgumentError = undefined;
+                if (isSingleNonGenericCandidate) {
+                    var candidate = candidates[0];
+                    if (ts.some(typeArguments) || !hasCorrectArity(node, args, candidate, signatureHelpTrailingComma)) {
+                        return undefined;
+                    }
+                    if (getSignatureApplicabilityError(node, args, candidate, relation, 0, false, undefined)) {
+                        candidatesForArgumentError = [candidate];
+                        return undefined;
+                    }
+                    return candidate;
+                }
+                for (var candidateIndex = 0; candidateIndex < candidates.length; candidateIndex++) {
+                    var candidate = candidates[candidateIndex];
+                    if (!hasCorrectTypeArgumentArity(candidate, typeArguments) || !hasCorrectArity(node, args, candidate, signatureHelpTrailingComma)) {
+                        continue;
+                    }
+                    var checkCandidate = void 0;
+                    var inferenceContext = void 0;
+                    if (candidate.typeParameters) {
+                        var typeArgumentTypes = void 0;
+                        if (ts.some(typeArguments)) {
+                            typeArgumentTypes = checkTypeArguments(candidate, typeArguments, false);
+                            if (!typeArgumentTypes) {
+                                candidateForTypeArgumentError = candidate;
+                                continue;
+                            }
+                        }
+                        else {
+                            inferenceContext = createInferenceContext(candidate.typeParameters, candidate, ts.isInJSFile(node) ? 2 : 0);
+                            typeArgumentTypes = inferTypeArguments(node, candidate, args, argCheckMode | 8, inferenceContext);
+                            argCheckMode |= inferenceContext.flags & 4 ? 8 : 0;
+                        }
+                        checkCandidate = getSignatureInstantiation(candidate, typeArgumentTypes, ts.isInJSFile(candidate.declaration), inferenceContext && inferenceContext.inferredTypeParameters);
+                        if (getNonArrayRestType(candidate) && !hasCorrectArity(node, args, checkCandidate, signatureHelpTrailingComma)) {
+                            candidateForArgumentArityError = checkCandidate;
+                            continue;
+                        }
+                    }
+                    else {
+                        checkCandidate = candidate;
+                    }
+                    if (getSignatureApplicabilityError(node, args, checkCandidate, relation, argCheckMode, false, undefined)) {
+                        (candidatesForArgumentError || (candidatesForArgumentError = [])).push(checkCandidate);
+                        continue;
+                    }
+                    if (argCheckMode) {
+                        argCheckMode = 0;
+                        if (inferenceContext) {
+                            var typeArgumentTypes = inferTypeArguments(node, candidate, args, argCheckMode, inferenceContext);
+                            checkCandidate = getSignatureInstantiation(candidate, typeArgumentTypes, ts.isInJSFile(candidate.declaration), inferenceContext && inferenceContext.inferredTypeParameters);
+                            if (getNonArrayRestType(candidate) && !hasCorrectArity(node, args, checkCandidate, signatureHelpTrailingComma)) {
+                                candidateForArgumentArityError = checkCandidate;
+                                continue;
+                            }
+                        }
+                        if (getSignatureApplicabilityError(node, args, checkCandidate, relation, argCheckMode, false, undefined)) {
+                            (candidatesForArgumentError || (candidatesForArgumentError = [])).push(checkCandidate);
+                            continue;
+                        }
+                    }
+                    candidates[candidateIndex] = checkCandidate;
+                    return checkCandidate;
+                }
+                return undefined;
+            }
+        }
+        function getCandidateForOverloadFailure(node, candidates, args, hasCandidatesOutArray) {
+            ts.Debug.assert(candidates.length > 0);
+            checkNodeDeferred(node);
+            return hasCandidatesOutArray || candidates.length === 1 || candidates.some(function (c) { return !!c.typeParameters; })
+                ? pickLongestCandidateSignature(node, candidates, args)
+                : createUnionOfSignaturesForOverloadFailure(candidates);
+        }
+        function createUnionOfSignaturesForOverloadFailure(candidates) {
+            var thisParameters = ts.mapDefined(candidates, function (c) { return c.thisParameter; });
+            var thisParameter;
+            if (thisParameters.length) {
+                thisParameter = createCombinedSymbolFromTypes(thisParameters, thisParameters.map(getTypeOfParameter));
+            }
+            var _a = ts.minAndMax(candidates, getNumNonRestParameters), minArgumentCount = _a.min, maxNonRestParam = _a.max;
+            var parameters = [];
+            var _loop_18 = function (i) {
+                var symbols = ts.mapDefined(candidates, function (s) { return signatureHasRestParameter(s) ?
+                    i < s.parameters.length - 1 ? s.parameters[i] : ts.last(s.parameters) :
+                    i < s.parameters.length ? s.parameters[i] : undefined; });
+                ts.Debug.assert(symbols.length !== 0);
+                parameters.push(createCombinedSymbolFromTypes(symbols, ts.mapDefined(candidates, function (candidate) { return tryGetTypeAtPosition(candidate, i); })));
+            };
+            for (var i = 0; i < maxNonRestParam; i++) {
+                _loop_18(i);
+            }
+            var restParameterSymbols = ts.mapDefined(candidates, function (c) { return signatureHasRestParameter(c) ? ts.last(c.parameters) : undefined; });
+            var flags = 0;
+            if (restParameterSymbols.length !== 0) {
+                var type = createArrayType(getUnionType(ts.mapDefined(candidates, tryGetRestTypeOfSignature), 2));
+                parameters.push(createCombinedSymbolForOverloadFailure(restParameterSymbols, type));
+                flags |= 1;
+            }
+            if (candidates.some(signatureHasLiteralTypes)) {
+                flags |= 2;
+            }
+            return createSignature(candidates[0].declaration, undefined, thisParameter, parameters, getIntersectionType(candidates.map(getReturnTypeOfSignature)), undefined, minArgumentCount, flags);
+        }
+        function getNumNonRestParameters(signature) {
+            var numParams = signature.parameters.length;
+            return signatureHasRestParameter(signature) ? numParams - 1 : numParams;
+        }
+        function createCombinedSymbolFromTypes(sources, types) {
+            return createCombinedSymbolForOverloadFailure(sources, getUnionType(types, 2));
+        }
+        function createCombinedSymbolForOverloadFailure(sources, type) {
+            return createSymbolWithType(ts.first(sources), type);
+        }
+        function pickLongestCandidateSignature(node, candidates, args) {
+            var bestIndex = getLongestCandidateIndex(candidates, apparentArgumentCount === undefined ? args.length : apparentArgumentCount);
+            var candidate = candidates[bestIndex];
+            var typeParameters = candidate.typeParameters;
+            if (!typeParameters) {
+                return candidate;
+            }
+            var typeArgumentNodes = callLikeExpressionMayHaveTypeArguments(node) ? node.typeArguments : undefined;
+            var instantiated = typeArgumentNodes
+                ? createSignatureInstantiation(candidate, getTypeArgumentsFromNodes(typeArgumentNodes, typeParameters, ts.isInJSFile(node)))
+                : inferSignatureInstantiationForOverloadFailure(node, typeParameters, candidate, args);
+            candidates[bestIndex] = instantiated;
+            return instantiated;
+        }
+        function getTypeArgumentsFromNodes(typeArgumentNodes, typeParameters, isJs) {
+            var typeArguments = typeArgumentNodes.map(getTypeOfNode);
+            while (typeArguments.length > typeParameters.length) {
+                typeArguments.pop();
+            }
+            while (typeArguments.length < typeParameters.length) {
+                typeArguments.push(getConstraintOfTypeParameter(typeParameters[typeArguments.length]) || getDefaultTypeArgumentType(isJs));
+            }
+            return typeArguments;
+        }
+        function inferSignatureInstantiationForOverloadFailure(node, typeParameters, candidate, args) {
+            var inferenceContext = createInferenceContext(typeParameters, candidate, ts.isInJSFile(node) ? 2 : 0);
+            var typeArgumentTypes = inferTypeArguments(node, candidate, args, 4 | 8, inferenceContext);
+            return createSignatureInstantiation(candidate, typeArgumentTypes);
+        }
+        function getLongestCandidateIndex(candidates, argsCount) {
+            var maxParamsIndex = -1;
+            var maxParams = -1;
+            for (var i = 0; i < candidates.length; i++) {
+                var candidate = candidates[i];
+                var paramCount = getParameterCount(candidate);
+                if (hasEffectiveRestParameter(candidate) || paramCount >= argsCount) {
+                    return i;
+                }
+                if (paramCount > maxParams) {
+                    maxParams = paramCount;
+                    maxParamsIndex = i;
+                }
+            }
+            return maxParamsIndex;
+        }
+        function resolveCallExpression(node, candidatesOutArray, checkMode) {
+            if (node.expression.kind === 102) {
+                var superType = checkSuperExpression(node.expression);
+                if (isTypeAny(superType)) {
+                    for (var _i = 0, _a = node.arguments; _i < _a.length; _i++) {
+                        var arg = _a[_i];
+                        checkExpression(arg);
+                    }
+                    return anySignature;
+                }
+                if (superType !== errorType) {
+                    var baseTypeNode = ts.getEffectiveBaseTypeNode(ts.getContainingClass(node));
+                    if (baseTypeNode) {
+                        var baseConstructors = getInstantiatedConstructorsForTypeArguments(superType, baseTypeNode.typeArguments, baseTypeNode);
+                        return resolveCall(node, baseConstructors, candidatesOutArray, checkMode, 0);
+                    }
+                }
+                return resolveUntypedCall(node);
+            }
+            var callChainFlags;
+            var funcType = checkExpression(node.expression);
+            if (ts.isCallChain(node)) {
+                var nonOptionalType = getOptionalExpressionType(funcType, node.expression);
+                callChainFlags = nonOptionalType === funcType ? 0 :
+                    ts.isOutermostOptionalChain(node) ? 8 :
+                        4;
+                funcType = nonOptionalType;
+            }
+            else {
+                callChainFlags = 0;
+            }
+            funcType = checkNonNullTypeWithReporter(funcType, node.expression, reportCannotInvokePossiblyNullOrUndefinedError);
+            if (funcType === silentNeverType) {
+                return silentNeverSignature;
+            }
+            var apparentType = getApparentType(funcType);
+            if (apparentType === errorType) {
+                return resolveErrorCall(node);
+            }
+            var callSignatures = getSignaturesOfType(apparentType, 0);
+            var numConstructSignatures = getSignaturesOfType(apparentType, 1).length;
+            if (isUntypedFunctionCall(funcType, apparentType, callSignatures.length, numConstructSignatures)) {
+                if (funcType !== errorType && node.typeArguments) {
+                    error(node, ts.Diagnostics.Untyped_function_calls_may_not_accept_type_arguments);
+                }
+                return resolveUntypedCall(node);
+            }
+            if (!callSignatures.length) {
+                if (numConstructSignatures) {
+                    error(node, ts.Diagnostics.Value_of_type_0_is_not_callable_Did_you_mean_to_include_new, typeToString(funcType));
+                }
+                else {
+                    var relatedInformation = void 0;
+                    if (node.arguments.length === 1) {
+                        var text = ts.getSourceFileOfNode(node).text;
+                        if (ts.isLineBreak(text.charCodeAt(ts.skipTrivia(text, node.expression.end, true) - 1))) {
+                            relatedInformation = ts.createDiagnosticForNode(node.expression, ts.Diagnostics.Are_you_missing_a_semicolon);
+                        }
+                    }
+                    invocationError(node.expression, apparentType, 0, relatedInformation);
+                }
+                return resolveErrorCall(node);
+            }
+            if (checkMode & 8 && !node.typeArguments && callSignatures.some(isGenericFunctionReturningFunction)) {
+                skippedGenericFunction(node, checkMode);
+                return resolvingSignature;
+            }
+            if (callSignatures.some(function (sig) { return ts.isInJSFile(sig.declaration) && !!ts.getJSDocClassTag(sig.declaration); })) {
+                error(node, ts.Diagnostics.Value_of_type_0_is_not_callable_Did_you_mean_to_include_new, typeToString(funcType));
+                return resolveErrorCall(node);
+            }
+            return resolveCall(node, callSignatures, candidatesOutArray, checkMode, callChainFlags);
+        }
+        function isGenericFunctionReturningFunction(signature) {
+            return !!(signature.typeParameters && isFunctionType(getReturnTypeOfSignature(signature)));
+        }
+        function isUntypedFunctionCall(funcType, apparentFuncType, numCallSignatures, numConstructSignatures) {
+            return isTypeAny(funcType) || isTypeAny(apparentFuncType) && !!(funcType.flags & 262144) ||
+                !numCallSignatures && !numConstructSignatures && !(apparentFuncType.flags & (1048576 | 131072)) && isTypeAssignableTo(funcType, globalFunctionType);
+        }
+        function resolveNewExpression(node, candidatesOutArray, checkMode) {
+            if (node.arguments && languageVersion < 1) {
+                var spreadIndex = getSpreadArgumentIndex(node.arguments);
+                if (spreadIndex >= 0) {
+                    error(node.arguments[spreadIndex], ts.Diagnostics.Spread_operator_in_new_expressions_is_only_available_when_targeting_ECMAScript_5_and_higher);
+                }
+            }
+            var expressionType = checkNonNullExpression(node.expression);
+            if (expressionType === silentNeverType) {
+                return silentNeverSignature;
+            }
+            expressionType = getApparentType(expressionType);
+            if (expressionType === errorType) {
+                return resolveErrorCall(node);
+            }
+            if (isTypeAny(expressionType)) {
+                if (node.typeArguments) {
+                    error(node, ts.Diagnostics.Untyped_function_calls_may_not_accept_type_arguments);
+                }
+                return resolveUntypedCall(node);
+            }
+            var constructSignatures = getSignaturesOfType(expressionType, 1);
+            if (constructSignatures.length) {
+                if (!isConstructorAccessible(node, constructSignatures[0])) {
+                    return resolveErrorCall(node);
+                }
+                var valueDecl = expressionType.symbol && ts.getClassLikeDeclarationOfSymbol(expressionType.symbol);
+                if (valueDecl && ts.hasModifier(valueDecl, 128)) {
+                    error(node, ts.Diagnostics.Cannot_create_an_instance_of_an_abstract_class);
+                    return resolveErrorCall(node);
+                }
+                return resolveCall(node, constructSignatures, candidatesOutArray, checkMode, 0);
+            }
+            var callSignatures = getSignaturesOfType(expressionType, 0);
+            if (callSignatures.length) {
+                var signature = resolveCall(node, callSignatures, candidatesOutArray, checkMode, 0);
+                if (!noImplicitAny) {
+                    if (signature.declaration && !isJSConstructor(signature.declaration) && getReturnTypeOfSignature(signature) !== voidType) {
+                        error(node, ts.Diagnostics.Only_a_void_function_can_be_called_with_the_new_keyword);
+                    }
+                    if (getThisTypeOfSignature(signature) === voidType) {
+                        error(node, ts.Diagnostics.A_function_that_is_called_with_the_new_keyword_cannot_have_a_this_type_that_is_void);
+                    }
+                }
+                return signature;
+            }
+            invocationError(node.expression, expressionType, 1);
+            return resolveErrorCall(node);
+        }
+        function typeHasProtectedAccessibleBase(target, type) {
+            var baseTypes = getBaseTypes(type);
+            if (!ts.length(baseTypes)) {
+                return false;
+            }
+            var firstBase = baseTypes[0];
+            if (firstBase.flags & 2097152) {
+                var types = firstBase.types;
+                var mixinFlags = findMixins(types);
+                var i = 0;
+                for (var _i = 0, _a = firstBase.types; _i < _a.length; _i++) {
+                    var intersectionMember = _a[_i];
+                    if (!mixinFlags[i]) {
+                        if (ts.getObjectFlags(intersectionMember) & (1 | 2)) {
+                            if (intersectionMember.symbol === target) {
+                                return true;
+                            }
+                            if (typeHasProtectedAccessibleBase(target, intersectionMember)) {
+                                return true;
+                            }
+                        }
+                    }
+                    i++;
+                }
+                return false;
+            }
+            if (firstBase.symbol === target) {
+                return true;
+            }
+            return typeHasProtectedAccessibleBase(target, firstBase);
+        }
+        function isConstructorAccessible(node, signature) {
+            if (!signature || !signature.declaration) {
+                return true;
+            }
+            var declaration = signature.declaration;
+            var modifiers = ts.getSelectedModifierFlags(declaration, 24);
+            if (!modifiers || declaration.kind !== 162) {
+                return true;
+            }
+            var declaringClassDeclaration = ts.getClassLikeDeclarationOfSymbol(declaration.parent.symbol);
+            var declaringClass = getDeclaredTypeOfSymbol(declaration.parent.symbol);
+            if (!isNodeWithinClass(node, declaringClassDeclaration)) {
+                var containingClass = ts.getContainingClass(node);
+                if (containingClass && modifiers & 16) {
+                    var containingType = getTypeOfNode(containingClass);
+                    if (typeHasProtectedAccessibleBase(declaration.parent.symbol, containingType)) {
+                        return true;
+                    }
+                }
+                if (modifiers & 8) {
+                    error(node, ts.Diagnostics.Constructor_of_class_0_is_private_and_only_accessible_within_the_class_declaration, typeToString(declaringClass));
+                }
+                if (modifiers & 16) {
+                    error(node, ts.Diagnostics.Constructor_of_class_0_is_protected_and_only_accessible_within_the_class_declaration, typeToString(declaringClass));
+                }
+                return false;
+            }
+            return true;
+        }
+        function invocationErrorDetails(apparentType, kind) {
+            var errorInfo;
+            var isCall = kind === 0;
+            var awaitedType = getAwaitedType(apparentType);
+            var maybeMissingAwait = awaitedType && getSignaturesOfType(awaitedType, kind).length > 0;
+            if (apparentType.flags & 1048576) {
+                var types = apparentType.types;
+                var hasSignatures = false;
+                for (var _i = 0, types_18 = types; _i < types_18.length; _i++) {
+                    var constituent = types_18[_i];
+                    var signatures = getSignaturesOfType(constituent, kind);
+                    if (signatures.length !== 0) {
+                        hasSignatures = true;
+                        if (errorInfo) {
+                            break;
+                        }
+                    }
+                    else {
+                        if (!errorInfo) {
+                            errorInfo = ts.chainDiagnosticMessages(errorInfo, isCall ?
+                                ts.Diagnostics.Type_0_has_no_call_signatures :
+                                ts.Diagnostics.Type_0_has_no_construct_signatures, typeToString(constituent));
+                            errorInfo = ts.chainDiagnosticMessages(errorInfo, isCall ?
+                                ts.Diagnostics.Not_all_constituents_of_type_0_are_callable :
+                                ts.Diagnostics.Not_all_constituents_of_type_0_are_constructable, typeToString(apparentType));
+                        }
+                        if (hasSignatures) {
+                            break;
+                        }
+                    }
+                }
+                if (!hasSignatures) {
+                    errorInfo = ts.chainDiagnosticMessages(undefined, isCall ?
+                        ts.Diagnostics.No_constituent_of_type_0_is_callable :
+                        ts.Diagnostics.No_constituent_of_type_0_is_constructable, typeToString(apparentType));
+                }
+                if (!errorInfo) {
+                    errorInfo = ts.chainDiagnosticMessages(errorInfo, isCall ?
+                        ts.Diagnostics.Each_member_of_the_union_type_0_has_signatures_but_none_of_those_signatures_are_compatible_with_each_other :
+                        ts.Diagnostics.Each_member_of_the_union_type_0_has_construct_signatures_but_none_of_those_signatures_are_compatible_with_each_other, typeToString(apparentType));
+                }
+            }
+            else {
+                errorInfo = ts.chainDiagnosticMessages(errorInfo, isCall ?
+                    ts.Diagnostics.Type_0_has_no_call_signatures :
+                    ts.Diagnostics.Type_0_has_no_construct_signatures, typeToString(apparentType));
+            }
+            return {
+                messageChain: ts.chainDiagnosticMessages(errorInfo, isCall ? ts.Diagnostics.This_expression_is_not_callable : ts.Diagnostics.This_expression_is_not_constructable),
+                relatedMessage: maybeMissingAwait ? ts.Diagnostics.Did_you_forget_to_use_await : undefined,
+            };
+        }
+        function invocationError(errorTarget, apparentType, kind, relatedInformation) {
+            var _a = invocationErrorDetails(apparentType, kind), messageChain = _a.messageChain, relatedInfo = _a.relatedMessage;
+            var diagnostic = ts.createDiagnosticForNodeFromMessageChain(errorTarget, messageChain);
+            if (relatedInfo) {
+                ts.addRelatedInfo(diagnostic, ts.createDiagnosticForNode(errorTarget, relatedInfo));
+            }
+            if (ts.isCallExpression(errorTarget.parent)) {
+                var _b = getDiagnosticSpanForCallNode(errorTarget.parent, true), start = _b.start, length_7 = _b.length;
+                diagnostic.start = start;
+                diagnostic.length = length_7;
+            }
+            diagnostics.add(diagnostic);
+            invocationErrorRecovery(apparentType, kind, relatedInformation ? ts.addRelatedInfo(diagnostic, relatedInformation) : diagnostic);
+        }
+        function invocationErrorRecovery(apparentType, kind, diagnostic) {
+            if (!apparentType.symbol) {
+                return;
+            }
+            var importNode = getSymbolLinks(apparentType.symbol).originatingImport;
+            if (importNode && !ts.isImportCall(importNode)) {
+                var sigs = getSignaturesOfType(getTypeOfSymbol(getSymbolLinks(apparentType.symbol).target), kind);
+                if (!sigs || !sigs.length)
+                    return;
+                ts.addRelatedInfo(diagnostic, ts.createDiagnosticForNode(importNode, ts.Diagnostics.Type_originates_at_this_import_A_namespace_style_import_cannot_be_called_or_constructed_and_will_cause_a_failure_at_runtime_Consider_using_a_default_import_or_import_require_here_instead));
+            }
+        }
+        function resolveTaggedTemplateExpression(node, candidatesOutArray, checkMode) {
+            var tagType = checkExpression(node.tag);
+            var apparentType = getApparentType(tagType);
+            if (apparentType === errorType) {
+                return resolveErrorCall(node);
+            }
+            var callSignatures = getSignaturesOfType(apparentType, 0);
+            var numConstructSignatures = getSignaturesOfType(apparentType, 1).length;
+            if (isUntypedFunctionCall(tagType, apparentType, callSignatures.length, numConstructSignatures)) {
+                return resolveUntypedCall(node);
+            }
+            if (!callSignatures.length) {
+                invocationError(node.tag, apparentType, 0);
+                return resolveErrorCall(node);
+            }
+            return resolveCall(node, callSignatures, candidatesOutArray, checkMode, 0);
+        }
+        function getDiagnosticHeadMessageForDecoratorResolution(node) {
+            switch (node.parent.kind) {
+                case 245:
+                case 214:
+                    return ts.Diagnostics.Unable_to_resolve_signature_of_class_decorator_when_called_as_an_expression;
+                case 156:
+                    return ts.Diagnostics.Unable_to_resolve_signature_of_parameter_decorator_when_called_as_an_expression;
+                case 159:
+                    return ts.Diagnostics.Unable_to_resolve_signature_of_property_decorator_when_called_as_an_expression;
+                case 161:
+                case 163:
+                case 164:
+                    return ts.Diagnostics.Unable_to_resolve_signature_of_method_decorator_when_called_as_an_expression;
+                default:
+                    return ts.Debug.fail();
+            }
+        }
+        function resolveDecorator(node, candidatesOutArray, checkMode) {
+            var funcType = checkExpression(node.expression);
+            var apparentType = getApparentType(funcType);
+            if (apparentType === errorType) {
+                return resolveErrorCall(node);
+            }
+            var callSignatures = getSignaturesOfType(apparentType, 0);
+            var numConstructSignatures = getSignaturesOfType(apparentType, 1).length;
+            if (isUntypedFunctionCall(funcType, apparentType, callSignatures.length, numConstructSignatures)) {
+                return resolveUntypedCall(node);
+            }
+            if (isPotentiallyUncalledDecorator(node, callSignatures)) {
+                var nodeStr = ts.getTextOfNode(node.expression, false);
+                error(node, ts.Diagnostics._0_accepts_too_few_arguments_to_be_used_as_a_decorator_here_Did_you_mean_to_call_it_first_and_write_0, nodeStr);
+                return resolveErrorCall(node);
+            }
+            var headMessage = getDiagnosticHeadMessageForDecoratorResolution(node);
+            if (!callSignatures.length) {
+                var errorDetails = invocationErrorDetails(apparentType, 0);
+                var messageChain = ts.chainDiagnosticMessages(errorDetails.messageChain, headMessage);
+                var diag = ts.createDiagnosticForNodeFromMessageChain(node.expression, messageChain);
+                if (errorDetails.relatedMessage) {
+                    ts.addRelatedInfo(diag, ts.createDiagnosticForNode(node.expression, errorDetails.relatedMessage));
+                }
+                diagnostics.add(diag);
+                invocationErrorRecovery(apparentType, 0, diag);
+                return resolveErrorCall(node);
+            }
+            return resolveCall(node, callSignatures, candidatesOutArray, checkMode, 0, headMessage);
+        }
+        function createSignatureForJSXIntrinsic(node, result) {
+            var namespace = getJsxNamespaceAt(node);
+            var exports = namespace && getExportsOfSymbol(namespace);
+            var typeSymbol = exports && getSymbol(exports, JsxNames.Element, 788968);
+            var returnNode = typeSymbol && nodeBuilder.symbolToEntityName(typeSymbol, 788968, node);
+            var declaration = ts.createFunctionTypeNode(undefined, [ts.createParameter(undefined, undefined, undefined, "props", undefined, nodeBuilder.typeToTypeNode(result, node))], returnNode ? ts.createTypeReferenceNode(returnNode, undefined) : ts.createKeywordTypeNode(125));
+            var parameterSymbol = createSymbol(1, "props");
+            parameterSymbol.type = result;
+            return createSignature(declaration, undefined, undefined, [parameterSymbol], typeSymbol ? getDeclaredTypeOfSymbol(typeSymbol) : errorType, undefined, 1, 0);
+        }
+        function resolveJsxOpeningLikeElement(node, candidatesOutArray, checkMode) {
+            if (isJsxIntrinsicIdentifier(node.tagName)) {
+                var result = getIntrinsicAttributesTypeFromJsxOpeningLikeElement(node);
+                var fakeSignature = createSignatureForJSXIntrinsic(node, result);
+                checkTypeAssignableToAndOptionallyElaborate(checkExpressionWithContextualType(node.attributes, getEffectiveFirstArgumentForJsxSignature(fakeSignature, node), undefined, 0), result, node.tagName, node.attributes);
+                return fakeSignature;
+            }
+            var exprTypes = checkExpression(node.tagName);
+            var apparentType = getApparentType(exprTypes);
+            if (apparentType === errorType) {
+                return resolveErrorCall(node);
+            }
+            var signatures = getUninstantiatedJsxSignaturesOfType(exprTypes, node);
+            if (isUntypedFunctionCall(exprTypes, apparentType, signatures.length, 0)) {
+                return resolveUntypedCall(node);
+            }
+            if (signatures.length === 0) {
+                error(node.tagName, ts.Diagnostics.JSX_element_type_0_does_not_have_any_construct_or_call_signatures, ts.getTextOfNode(node.tagName));
+                return resolveErrorCall(node);
+            }
+            return resolveCall(node, signatures, candidatesOutArray, checkMode, 0);
+        }
+        function isPotentiallyUncalledDecorator(decorator, signatures) {
+            return signatures.length && ts.every(signatures, function (signature) {
+                return signature.minArgumentCount === 0 &&
+                    !signatureHasRestParameter(signature) &&
+                    signature.parameters.length < getDecoratorArgumentCount(decorator, signature);
+            });
+        }
+        function resolveSignature(node, candidatesOutArray, checkMode) {
+            switch (node.kind) {
+                case 196:
+                    return resolveCallExpression(node, candidatesOutArray, checkMode);
+                case 197:
+                    return resolveNewExpression(node, candidatesOutArray, checkMode);
+                case 198:
+                    return resolveTaggedTemplateExpression(node, candidatesOutArray, checkMode);
+                case 157:
+                    return resolveDecorator(node, candidatesOutArray, checkMode);
+                case 268:
+                case 267:
+                    return resolveJsxOpeningLikeElement(node, candidatesOutArray, checkMode);
+            }
+            throw ts.Debug.assertNever(node, "Branch in 'resolveSignature' should be unreachable.");
+        }
+        function getResolvedSignature(node, candidatesOutArray, checkMode) {
+            var links = getNodeLinks(node);
+            var cached = links.resolvedSignature;
+            if (cached && cached !== resolvingSignature && !candidatesOutArray) {
+                return cached;
+            }
+            links.resolvedSignature = resolvingSignature;
+            var result = resolveSignature(node, candidatesOutArray, checkMode || 0);
+            if (result !== resolvingSignature) {
+                links.resolvedSignature = flowLoopStart === flowLoopCount ? result : cached;
+            }
+            return result;
+        }
+        function isJSConstructor(node) {
+            if (!node || !ts.isInJSFile(node)) {
+                return false;
+            }
+            var func = ts.isFunctionDeclaration(node) || ts.isFunctionExpression(node) ? node :
+                ts.isVariableDeclaration(node) && node.initializer && ts.isFunctionExpression(node.initializer) ? node.initializer :
+                    undefined;
+            if (func) {
+                if (ts.getJSDocClassTag(node))
+                    return true;
+                var symbol = getSymbolOfNode(func);
+                return !!symbol && ts.hasEntries(symbol.members);
+            }
+            return false;
+        }
+        function mergeJSSymbols(target, source) {
+            if (source) {
+                var links = getSymbolLinks(source);
+                if (!links.inferredClassSymbol || !links.inferredClassSymbol.has("" + getSymbolId(target))) {
+                    var inferred = ts.isTransientSymbol(target) ? target : cloneSymbol(target);
+                    inferred.exports = inferred.exports || ts.createSymbolTable();
+                    inferred.members = inferred.members || ts.createSymbolTable();
+                    inferred.flags |= source.flags & 32;
+                    if (ts.hasEntries(source.exports)) {
+                        mergeSymbolTable(inferred.exports, source.exports);
+                    }
+                    if (ts.hasEntries(source.members)) {
+                        mergeSymbolTable(inferred.members, source.members);
+                    }
+                    (links.inferredClassSymbol || (links.inferredClassSymbol = ts.createMap())).set("" + getSymbolId(inferred), inferred);
+                    return inferred;
+                }
+                return links.inferredClassSymbol.get("" + getSymbolId(target));
+            }
+        }
+        function getAssignedClassSymbol(decl) {
+            var assignmentSymbol = decl && decl.parent &&
+                (ts.isFunctionDeclaration(decl) && getSymbolOfNode(decl) ||
+                    ts.isBinaryExpression(decl.parent) && getSymbolOfNode(decl.parent.left) ||
+                    ts.isVariableDeclaration(decl.parent) && getSymbolOfNode(decl.parent));
+            var prototype = assignmentSymbol && assignmentSymbol.exports && assignmentSymbol.exports.get("prototype");
+            var init = prototype && prototype.valueDeclaration && getAssignedJSPrototype(prototype.valueDeclaration);
+            return init ? getSymbolOfNode(init) : undefined;
+        }
+        function getAssignedJSPrototype(node) {
+            if (!node.parent) {
+                return false;
+            }
+            var parent = node.parent;
+            while (parent && parent.kind === 194) {
+                parent = parent.parent;
+            }
+            if (parent && ts.isBinaryExpression(parent) && ts.isPrototypeAccess(parent.left) && parent.operatorToken.kind === 62) {
+                var right = ts.getInitializerOfBinaryExpression(parent);
+                return ts.isObjectLiteralExpression(right) && right;
+            }
+        }
+        function checkCallExpression(node, checkMode) {
+            if (!checkGrammarTypeArguments(node, node.typeArguments))
+                checkGrammarArguments(node.arguments);
+            var signature = getResolvedSignature(node, undefined, checkMode);
+            if (signature === resolvingSignature) {
+                return nonInferrableType;
+            }
+            if (node.expression.kind === 102) {
+                return voidType;
+            }
+            if (node.kind === 197) {
+                var declaration = signature.declaration;
+                if (declaration &&
+                    declaration.kind !== 162 &&
+                    declaration.kind !== 166 &&
+                    declaration.kind !== 171 &&
+                    !ts.isJSDocConstructSignature(declaration) &&
+                    !isJSConstructor(declaration)) {
+                    if (noImplicitAny) {
+                        error(node, ts.Diagnostics.new_expression_whose_target_lacks_a_construct_signature_implicitly_has_an_any_type);
+                    }
+                    return anyType;
+                }
+            }
+            if (ts.isInJSFile(node) && isCommonJsRequire(node)) {
+                return resolveExternalModuleTypeByLiteral(node.arguments[0]);
+            }
+            var returnType = getReturnTypeOfSignature(signature);
+            if (returnType.flags & 12288 && isSymbolOrSymbolForCall(node)) {
+                return getESSymbolLikeTypeForNode(ts.walkUpParenthesizedExpressions(node.parent));
+            }
+            if (node.kind === 196 && node.parent.kind === 226 &&
+                returnType.flags & 16384 && getTypePredicateOfSignature(signature)) {
+                if (!ts.isDottedName(node.expression)) {
+                    error(node.expression, ts.Diagnostics.Assertions_require_the_call_target_to_be_an_identifier_or_qualified_name);
+                }
+                else if (!getEffectsSignature(node)) {
+                    var diagnostic = error(node.expression, ts.Diagnostics.Assertions_require_every_name_in_the_call_target_to_be_declared_with_an_explicit_type_annotation);
+                    getTypeOfDottedName(node.expression, diagnostic);
+                }
+            }
+            if (ts.isInJSFile(node)) {
+                var decl = ts.getDeclarationOfExpando(node);
+                if (decl) {
+                    var jsSymbol = getSymbolOfNode(decl);
+                    if (jsSymbol && ts.hasEntries(jsSymbol.exports)) {
+                        var jsAssignmentType = createAnonymousType(jsSymbol, jsSymbol.exports, ts.emptyArray, ts.emptyArray, undefined, undefined);
+                        jsAssignmentType.objectFlags |= 16384;
+                        return getIntersectionType([returnType, jsAssignmentType]);
+                    }
+                }
+            }
+            return returnType;
+        }
+        function isSymbolOrSymbolForCall(node) {
+            if (!ts.isCallExpression(node))
+                return false;
+            var left = node.expression;
+            if (ts.isPropertyAccessExpression(left) && left.name.escapedText === "for") {
+                left = left.expression;
+            }
+            if (!ts.isIdentifier(left) || left.escapedText !== "Symbol") {
+                return false;
+            }
+            var globalESSymbol = getGlobalESSymbolConstructorSymbol(false);
+            if (!globalESSymbol) {
+                return false;
+            }
+            return globalESSymbol === resolveName(left, "Symbol", 111551, undefined, undefined, false);
+        }
+        function checkImportCallExpression(node) {
+            if (!checkGrammarArguments(node.arguments))
+                checkGrammarImportCallExpression(node);
+            if (node.arguments.length === 0) {
+                return createPromiseReturnType(node, anyType);
+            }
+            var specifier = node.arguments[0];
+            var specifierType = checkExpressionCached(specifier);
+            for (var i = 1; i < node.arguments.length; ++i) {
+                checkExpressionCached(node.arguments[i]);
+            }
+            if (specifierType.flags & 32768 || specifierType.flags & 65536 || !isTypeAssignableTo(specifierType, stringType)) {
+                error(specifier, ts.Diagnostics.Dynamic_import_s_specifier_must_be_of_type_string_but_here_has_type_0, typeToString(specifierType));
+            }
+            var moduleSymbol = resolveExternalModuleName(node, specifier);
+            if (moduleSymbol) {
+                var esModuleSymbol = resolveESModuleSymbol(moduleSymbol, specifier, true, false);
+                if (esModuleSymbol) {
+                    return createPromiseReturnType(node, getTypeWithSyntheticDefaultImportType(getTypeOfSymbol(esModuleSymbol), esModuleSymbol, moduleSymbol));
+                }
+            }
+            return createPromiseReturnType(node, anyType);
+        }
+        function getTypeWithSyntheticDefaultImportType(type, symbol, originalSymbol) {
+            if (allowSyntheticDefaultImports && type && type !== errorType) {
+                var synthType = type;
+                if (!synthType.syntheticType) {
+                    var file = ts.find(originalSymbol.declarations, ts.isSourceFile);
+                    var hasSyntheticDefault = canHaveSyntheticDefault(file, originalSymbol, false);
+                    if (hasSyntheticDefault) {
+                        var memberTable = ts.createSymbolTable();
+                        var newSymbol = createSymbol(2097152, "default");
+                        newSymbol.nameType = getLiteralType("default");
+                        newSymbol.target = resolveSymbol(symbol);
+                        memberTable.set("default", newSymbol);
+                        var anonymousSymbol = createSymbol(2048, "__type");
+                        var defaultContainingObject = createAnonymousType(anonymousSymbol, memberTable, ts.emptyArray, ts.emptyArray, undefined, undefined);
+                        anonymousSymbol.type = defaultContainingObject;
+                        synthType.syntheticType = isValidSpreadType(type) ? getSpreadType(type, defaultContainingObject, anonymousSymbol, 0, false) : defaultContainingObject;
+                    }
+                    else {
+                        synthType.syntheticType = type;
+                    }
+                }
+                return synthType.syntheticType;
+            }
+            return type;
+        }
+        function isCommonJsRequire(node) {
+            if (!ts.isRequireCall(node, true)) {
+                return false;
+            }
+            if (!ts.isIdentifier(node.expression))
+                return ts.Debug.fail();
+            var resolvedRequire = resolveName(node.expression, node.expression.escapedText, 111551, undefined, undefined, true);
+            if (resolvedRequire === requireSymbol) {
+                return true;
+            }
+            if (resolvedRequire.flags & 2097152) {
+                return false;
+            }
+            var targetDeclarationKind = resolvedRequire.flags & 16
+                ? 244
+                : resolvedRequire.flags & 3
+                    ? 242
+                    : 0;
+            if (targetDeclarationKind !== 0) {
+                var decl = ts.getDeclarationOfKind(resolvedRequire, targetDeclarationKind);
+                return !!decl && !!(decl.flags & 8388608);
+            }
+            return false;
+        }
+        function checkTaggedTemplateExpression(node) {
+            if (!checkGrammarTaggedTemplateChain(node))
+                checkGrammarTypeArguments(node, node.typeArguments);
+            if (languageVersion < 2) {
+                checkExternalEmitHelpers(node, 131072);
+            }
+            return getReturnTypeOfSignature(getResolvedSignature(node));
+        }
+        function checkAssertion(node) {
+            return checkAssertionWorker(node, node.type, node.expression);
+        }
+        function isValidConstAssertionArgument(node) {
+            switch (node.kind) {
+                case 10:
+                case 14:
+                case 8:
+                case 9:
+                case 106:
+                case 91:
+                case 192:
+                case 193:
+                    return true;
+                case 200:
+                    return isValidConstAssertionArgument(node.expression);
+                case 207:
+                    var op = node.operator;
+                    var arg = node.operand;
+                    return op === 40 && (arg.kind === 8 || arg.kind === 9) ||
+                        op === 39 && arg.kind === 8;
+                case 194:
+                case 195:
+                    var expr = node.expression;
+                    if (ts.isIdentifier(expr)) {
+                        var symbol = getSymbolAtLocation(expr);
+                        if (symbol && symbol.flags & 2097152) {
+                            symbol = resolveAlias(symbol);
+                        }
+                        return !!(symbol && (symbol.flags & 384) && getEnumKind(symbol) === 1);
+                    }
+            }
+            return false;
+        }
+        function checkAssertionWorker(errNode, type, expression, checkMode) {
+            var exprType = checkExpression(expression, checkMode);
+            if (ts.isConstTypeReference(type)) {
+                if (!isValidConstAssertionArgument(expression)) {
+                    error(expression, ts.Diagnostics.A_const_assertions_can_only_be_applied_to_references_to_enum_members_or_string_number_boolean_array_or_object_literals);
+                }
+                return getRegularTypeOfLiteralType(exprType);
+            }
+            checkSourceElement(type);
+            exprType = getRegularTypeOfObjectLiteral(getBaseTypeOfLiteralType(exprType));
+            var targetType = getTypeFromTypeNode(type);
+            if (produceDiagnostics && targetType !== errorType) {
+                var widenedType = getWidenedType(exprType);
+                if (!isTypeComparableTo(targetType, widenedType)) {
+                    checkTypeComparableTo(exprType, targetType, errNode, ts.Diagnostics.Conversion_of_type_0_to_type_1_may_be_a_mistake_because_neither_type_sufficiently_overlaps_with_the_other_If_this_was_intentional_convert_the_expression_to_unknown_first);
+                }
+            }
+            return targetType;
+        }
+        function checkNonNullChain(node) {
+            var leftType = checkExpression(node.expression);
+            var nonOptionalType = getOptionalExpressionType(leftType, node.expression);
+            return propagateOptionalTypeMarker(getNonNullableType(nonOptionalType), node, nonOptionalType !== leftType);
+        }
+        function checkNonNullAssertion(node) {
+            return node.flags & 32 ? checkNonNullChain(node) :
+                getNonNullableType(checkExpression(node.expression));
+        }
+        function checkMetaProperty(node) {
+            checkGrammarMetaProperty(node);
+            if (node.keywordToken === 99) {
+                return checkNewTargetMetaProperty(node);
+            }
+            if (node.keywordToken === 96) {
+                return checkImportMetaProperty(node);
+            }
+            return ts.Debug.assertNever(node.keywordToken);
+        }
+        function checkNewTargetMetaProperty(node) {
+            var container = ts.getNewTargetContainer(node);
+            if (!container) {
+                error(node, ts.Diagnostics.Meta_property_0_is_only_allowed_in_the_body_of_a_function_declaration_function_expression_or_constructor, "new.target");
+                return errorType;
+            }
+            else if (container.kind === 162) {
+                var symbol = getSymbolOfNode(container.parent);
+                return getTypeOfSymbol(symbol);
+            }
+            else {
+                var symbol = getSymbolOfNode(container);
+                return getTypeOfSymbol(symbol);
+            }
+        }
+        function checkImportMetaProperty(node) {
+            if (moduleKind !== ts.ModuleKind.ESNext && moduleKind !== ts.ModuleKind.System) {
+                error(node, ts.Diagnostics.The_import_meta_meta_property_is_only_allowed_when_the_module_option_is_esnext_or_system);
+            }
+            var file = ts.getSourceFileOfNode(node);
+            ts.Debug.assert(!!(file.flags & 2097152), "Containing file is missing import meta node flag.");
+            ts.Debug.assert(!!file.externalModuleIndicator, "Containing file should be a module.");
+            return node.name.escapedText === "meta" ? getGlobalImportMetaType() : errorType;
+        }
+        function getTypeOfParameter(symbol) {
+            var type = getTypeOfSymbol(symbol);
+            if (strictNullChecks) {
+                var declaration = symbol.valueDeclaration;
+                if (declaration && ts.hasInitializer(declaration)) {
+                    return getOptionalType(type);
+                }
+            }
+            return type;
+        }
+        function getParameterNameAtPosition(signature, pos) {
+            var paramCount = signature.parameters.length - (signatureHasRestParameter(signature) ? 1 : 0);
+            if (pos < paramCount) {
+                return signature.parameters[pos].escapedName;
+            }
+            var restParameter = signature.parameters[paramCount] || unknownSymbol;
+            var restType = getTypeOfSymbol(restParameter);
+            if (isTupleType(restType)) {
+                var associatedNames = restType.target.associatedNames;
+                var index = pos - paramCount;
+                return associatedNames && associatedNames[index] || restParameter.escapedName + "_" + index;
+            }
+            return restParameter.escapedName;
+        }
+        function getTypeAtPosition(signature, pos) {
+            return tryGetTypeAtPosition(signature, pos) || anyType;
+        }
+        function tryGetTypeAtPosition(signature, pos) {
+            var paramCount = signature.parameters.length - (signatureHasRestParameter(signature) ? 1 : 0);
+            if (pos < paramCount) {
+                return getTypeOfParameter(signature.parameters[pos]);
+            }
+            if (signatureHasRestParameter(signature)) {
+                var restType = getTypeOfSymbol(signature.parameters[paramCount]);
+                var index = pos - paramCount;
+                if (!isTupleType(restType) || restType.target.hasRestElement || index < getTypeArguments(restType).length) {
+                    return getIndexedAccessType(restType, getLiteralType(index));
+                }
+            }
+            return undefined;
+        }
+        function getRestTypeAtPosition(source, pos) {
+            var paramCount = getParameterCount(source);
+            var restType = getEffectiveRestType(source);
+            var nonRestCount = paramCount - (restType ? 1 : 0);
+            if (restType && pos === nonRestCount) {
+                return restType;
+            }
+            var types = [];
+            var names = [];
+            for (var i = pos; i < nonRestCount; i++) {
+                types.push(getTypeAtPosition(source, i));
+                names.push(getParameterNameAtPosition(source, i));
+            }
+            if (restType) {
+                types.push(getIndexedAccessType(restType, numberType));
+                names.push(getParameterNameAtPosition(source, nonRestCount));
+            }
+            var minArgumentCount = getMinArgumentCount(source);
+            var minLength = minArgumentCount < pos ? 0 : minArgumentCount - pos;
+            return createTupleType(types, minLength, !!restType, false, names);
+        }
+        function getParameterCount(signature) {
+            var length = signature.parameters.length;
+            if (signatureHasRestParameter(signature)) {
+                var restType = getTypeOfSymbol(signature.parameters[length - 1]);
+                if (isTupleType(restType)) {
+                    return length + getTypeArguments(restType).length - 1;
+                }
+            }
+            return length;
+        }
+        function getMinArgumentCount(signature, strongArityForUntypedJS) {
+            if (signatureHasRestParameter(signature)) {
+                var restType = getTypeOfSymbol(signature.parameters[signature.parameters.length - 1]);
+                if (isTupleType(restType)) {
+                    var minLength = restType.target.minLength;
+                    if (minLength > 0) {
+                        return signature.parameters.length - 1 + minLength;
+                    }
+                }
+            }
+            if (!strongArityForUntypedJS && signature.flags & 16) {
+                return 0;
+            }
+            return signature.minArgumentCount;
+        }
+        function hasEffectiveRestParameter(signature) {
+            if (signatureHasRestParameter(signature)) {
+                var restType = getTypeOfSymbol(signature.parameters[signature.parameters.length - 1]);
+                return !isTupleType(restType) || restType.target.hasRestElement;
+            }
+            return false;
+        }
+        function getEffectiveRestType(signature) {
+            if (signatureHasRestParameter(signature)) {
+                var restType = getTypeOfSymbol(signature.parameters[signature.parameters.length - 1]);
+                return isTupleType(restType) ? getRestArrayTypeOfTupleType(restType) : restType;
+            }
+            return undefined;
+        }
+        function getNonArrayRestType(signature) {
+            var restType = getEffectiveRestType(signature);
+            return restType && !isArrayType(restType) && !isTypeAny(restType) && (getReducedType(restType).flags & 131072) === 0 ? restType : undefined;
+        }
+        function getTypeOfFirstParameterOfSignature(signature) {
+            return getTypeOfFirstParameterOfSignatureWithFallback(signature, neverType);
+        }
+        function getTypeOfFirstParameterOfSignatureWithFallback(signature, fallbackType) {
+            return signature.parameters.length > 0 ? getTypeAtPosition(signature, 0) : fallbackType;
+        }
+        function inferFromAnnotatedParameters(signature, context, inferenceContext) {
+            var len = signature.parameters.length - (signatureHasRestParameter(signature) ? 1 : 0);
+            for (var i = 0; i < len; i++) {
+                var declaration = signature.parameters[i].valueDeclaration;
+                if (declaration.type) {
+                    var typeNode = ts.getEffectiveTypeAnnotationNode(declaration);
+                    if (typeNode) {
+                        inferTypes(inferenceContext.inferences, getTypeFromTypeNode(typeNode), getTypeAtPosition(context, i));
+                    }
+                }
+            }
+            var restType = getEffectiveRestType(context);
+            if (restType && restType.flags & 262144) {
+                var instantiatedContext = instantiateSignature(context, inferenceContext.nonFixingMapper);
+                assignContextualParameterTypes(signature, instantiatedContext);
+                var restPos = getParameterCount(context) - 1;
+                inferTypes(inferenceContext.inferences, getRestTypeAtPosition(signature, restPos), restType);
+            }
+        }
+        function assignContextualParameterTypes(signature, context) {
+            signature.typeParameters = context.typeParameters;
+            if (context.thisParameter) {
+                var parameter = signature.thisParameter;
+                if (!parameter || parameter.valueDeclaration && !parameter.valueDeclaration.type) {
+                    if (!parameter) {
+                        signature.thisParameter = createSymbolWithType(context.thisParameter, undefined);
+                    }
+                    assignParameterType(signature.thisParameter, getTypeOfSymbol(context.thisParameter));
+                }
+            }
+            var len = signature.parameters.length - (signatureHasRestParameter(signature) ? 1 : 0);
+            for (var i = 0; i < len; i++) {
+                var parameter = signature.parameters[i];
+                if (!ts.getEffectiveTypeAnnotationNode(parameter.valueDeclaration)) {
+                    var contextualParameterType = tryGetTypeAtPosition(context, i);
+                    assignParameterType(parameter, contextualParameterType);
+                }
+            }
+            if (signatureHasRestParameter(signature)) {
+                var parameter = ts.last(signature.parameters);
+                if (ts.isTransientSymbol(parameter) || !ts.getEffectiveTypeAnnotationNode(parameter.valueDeclaration)) {
+                    var contextualParameterType = getRestTypeAtPosition(context, len);
+                    assignParameterType(parameter, contextualParameterType);
+                }
+            }
+        }
+        function assignNonContextualParameterTypes(signature) {
+            if (signature.thisParameter) {
+                assignParameterType(signature.thisParameter);
+            }
+            for (var _i = 0, _a = signature.parameters; _i < _a.length; _i++) {
+                var parameter = _a[_i];
+                assignParameterType(parameter);
+            }
+        }
+        function assignParameterType(parameter, type) {
+            var links = getSymbolLinks(parameter);
+            if (!links.type) {
+                var declaration = parameter.valueDeclaration;
+                links.type = type || getWidenedTypeForVariableLikeDeclaration(declaration, true);
+                if (declaration.name.kind !== 75) {
+                    if (links.type === unknownType) {
+                        links.type = getTypeFromBindingPattern(declaration.name);
+                    }
+                    assignBindingElementTypes(declaration.name);
+                }
+            }
+        }
+        function assignBindingElementTypes(pattern) {
+            for (var _i = 0, _a = pattern.elements; _i < _a.length; _i++) {
+                var element = _a[_i];
+                if (!ts.isOmittedExpression(element)) {
+                    if (element.name.kind === 75) {
+                        getSymbolLinks(getSymbolOfNode(element)).type = getTypeForBindingElement(element);
+                    }
+                    else {
+                        assignBindingElementTypes(element.name);
+                    }
+                }
+            }
+        }
+        function createPromiseType(promisedType) {
+            var globalPromiseType = getGlobalPromiseType(true);
+            if (globalPromiseType !== emptyGenericType) {
+                promisedType = getAwaitedType(promisedType) || unknownType;
+                return createTypeReference(globalPromiseType, [promisedType]);
+            }
+            return unknownType;
+        }
+        function createPromiseLikeType(promisedType) {
+            var globalPromiseLikeType = getGlobalPromiseLikeType(true);
+            if (globalPromiseLikeType !== emptyGenericType) {
+                promisedType = getAwaitedType(promisedType) || unknownType;
+                return createTypeReference(globalPromiseLikeType, [promisedType]);
+            }
+            return unknownType;
+        }
+        function createPromiseReturnType(func, promisedType) {
+            var promiseType = createPromiseType(promisedType);
+            if (promiseType === unknownType) {
+                error(func, ts.isImportCall(func) ?
+                    ts.Diagnostics.A_dynamic_import_call_returns_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_include_ES2015_in_your_lib_option :
+                    ts.Diagnostics.An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_include_ES2015_in_your_lib_option);
+                return errorType;
+            }
+            else if (!getGlobalPromiseConstructorSymbol(true)) {
+                error(func, ts.isImportCall(func) ?
+                    ts.Diagnostics.A_dynamic_import_call_in_ES5_SlashES3_requires_the_Promise_constructor_Make_sure_you_have_a_declaration_for_the_Promise_constructor_or_include_ES2015_in_your_lib_option :
+                    ts.Diagnostics.An_async_function_or_method_in_ES5_SlashES3_requires_the_Promise_constructor_Make_sure_you_have_a_declaration_for_the_Promise_constructor_or_include_ES2015_in_your_lib_option);
+            }
+            return promiseType;
+        }
+        function getReturnTypeFromBody(func, checkMode) {
+            if (!func.body) {
+                return errorType;
+            }
+            var functionFlags = ts.getFunctionFlags(func);
+            var isAsync = (functionFlags & 2) !== 0;
+            var isGenerator = (functionFlags & 1) !== 0;
+            var returnType;
+            var yieldType;
+            var nextType;
+            var fallbackReturnType = voidType;
+            if (func.body.kind !== 223) {
+                returnType = checkExpressionCached(func.body, checkMode && checkMode & ~8);
+                if (isAsync) {
+                    returnType = checkAwaitedType(returnType, func, ts.Diagnostics.The_return_type_of_an_async_function_must_either_be_a_valid_promise_or_must_not_contain_a_callable_then_member);
+                }
+            }
+            else if (isGenerator) {
+                var returnTypes = checkAndAggregateReturnExpressionTypes(func, checkMode);
+                if (!returnTypes) {
+                    fallbackReturnType = neverType;
+                }
+                else if (returnTypes.length > 0) {
+                    returnType = getUnionType(returnTypes, 2);
+                }
+                var _a = checkAndAggregateYieldOperandTypes(func, checkMode), yieldTypes = _a.yieldTypes, nextTypes = _a.nextTypes;
+                yieldType = ts.some(yieldTypes) ? getUnionType(yieldTypes, 2) : undefined;
+                nextType = ts.some(nextTypes) ? getIntersectionType(nextTypes) : undefined;
+            }
+            else {
+                var types = checkAndAggregateReturnExpressionTypes(func, checkMode);
+                if (!types) {
+                    return functionFlags & 2
+                        ? createPromiseReturnType(func, neverType)
+                        : neverType;
+                }
+                if (types.length === 0) {
+                    return functionFlags & 2
+                        ? createPromiseReturnType(func, voidType)
+                        : voidType;
+                }
+                returnType = getUnionType(types, 2);
+            }
+            if (returnType || yieldType || nextType) {
+                if (yieldType)
+                    reportErrorsFromWidening(func, yieldType, 3);
+                if (returnType)
+                    reportErrorsFromWidening(func, returnType, 1);
+                if (nextType)
+                    reportErrorsFromWidening(func, nextType, 2);
+                if (returnType && isUnitType(returnType) ||
+                    yieldType && isUnitType(yieldType) ||
+                    nextType && isUnitType(nextType)) {
+                    var contextualSignature = getContextualSignatureForFunctionLikeDeclaration(func);
+                    var contextualType = !contextualSignature ? undefined :
+                        contextualSignature === getSignatureFromDeclaration(func) ? isGenerator ? undefined : returnType :
+                            instantiateContextualType(getReturnTypeOfSignature(contextualSignature), func);
+                    if (isGenerator) {
+                        yieldType = getWidenedLiteralLikeTypeForContextualIterationTypeIfNeeded(yieldType, contextualType, 0, isAsync);
+                        returnType = getWidenedLiteralLikeTypeForContextualIterationTypeIfNeeded(returnType, contextualType, 1, isAsync);
+                        nextType = getWidenedLiteralLikeTypeForContextualIterationTypeIfNeeded(nextType, contextualType, 2, isAsync);
+                    }
+                    else {
+                        returnType = getWidenedLiteralLikeTypeForContextualReturnTypeIfNeeded(returnType, contextualType, isAsync);
+                    }
+                }
+                if (yieldType)
+                    yieldType = getWidenedType(yieldType);
+                if (returnType)
+                    returnType = getWidenedType(returnType);
+                if (nextType)
+                    nextType = getWidenedType(nextType);
+            }
+            if (isGenerator) {
+                return createGeneratorReturnType(yieldType || neverType, returnType || fallbackReturnType, nextType || getContextualIterationType(2, func) || unknownType, isAsync);
+            }
+            else {
+                return isAsync
+                    ? createPromiseType(returnType || fallbackReturnType)
+                    : returnType || fallbackReturnType;
+            }
+        }
+        function createGeneratorReturnType(yieldType, returnType, nextType, isAsyncGenerator) {
+            var resolver = isAsyncGenerator ? asyncIterationTypesResolver : syncIterationTypesResolver;
+            var globalGeneratorType = resolver.getGlobalGeneratorType(false);
+            yieldType = resolver.resolveIterationType(yieldType, undefined) || unknownType;
+            returnType = resolver.resolveIterationType(returnType, undefined) || unknownType;
+            nextType = resolver.resolveIterationType(nextType, undefined) || unknownType;
+            if (globalGeneratorType === emptyGenericType) {
+                var globalType = resolver.getGlobalIterableIteratorType(false);
+                var iterationTypes = globalType !== emptyGenericType ? getIterationTypesOfGlobalIterableType(globalType, resolver) : undefined;
+                var iterableIteratorReturnType = iterationTypes ? iterationTypes.returnType : anyType;
+                var iterableIteratorNextType = iterationTypes ? iterationTypes.nextType : undefinedType;
+                if (isTypeAssignableTo(returnType, iterableIteratorReturnType) &&
+                    isTypeAssignableTo(iterableIteratorNextType, nextType)) {
+                    if (globalType !== emptyGenericType) {
+                        return createTypeFromGenericGlobalType(globalType, [yieldType]);
+                    }
+                    resolver.getGlobalIterableIteratorType(true);
+                    return emptyObjectType;
+                }
+                resolver.getGlobalGeneratorType(true);
+                return emptyObjectType;
+            }
+            return createTypeFromGenericGlobalType(globalGeneratorType, [yieldType, returnType, nextType]);
+        }
+        function checkAndAggregateYieldOperandTypes(func, checkMode) {
+            var yieldTypes = [];
+            var nextTypes = [];
+            var isAsync = (ts.getFunctionFlags(func) & 2) !== 0;
+            ts.forEachYieldExpression(func.body, function (yieldExpression) {
+                var yieldExpressionType = yieldExpression.expression ? checkExpression(yieldExpression.expression, checkMode) : undefinedWideningType;
+                ts.pushIfUnique(yieldTypes, getYieldedTypeOfYieldExpression(yieldExpression, yieldExpressionType, anyType, isAsync));
+                var nextType;
+                if (yieldExpression.asteriskToken) {
+                    var iterationTypes = getIterationTypesOfIterable(yieldExpressionType, isAsync ? 19 : 17, yieldExpression.expression);
+                    nextType = iterationTypes && iterationTypes.nextType;
+                }
+                else {
+                    nextType = getContextualType(yieldExpression);
+                }
+                if (nextType)
+                    ts.pushIfUnique(nextTypes, nextType);
+            });
+            return { yieldTypes: yieldTypes, nextTypes: nextTypes };
+        }
+        function getYieldedTypeOfYieldExpression(node, expressionType, sentType, isAsync) {
+            var errorNode = node.expression || node;
+            var yieldedType = node.asteriskToken ? checkIteratedTypeOrElementType(isAsync ? 19 : 17, expressionType, sentType, errorNode) : expressionType;
+            return !isAsync ? yieldedType : getAwaitedType(yieldedType, errorNode, node.asteriskToken
+                ? ts.Diagnostics.Type_of_iterated_elements_of_a_yield_Asterisk_operand_must_either_be_a_valid_promise_or_must_not_contain_a_callable_then_member
+                : ts.Diagnostics.Type_of_yield_operand_in_an_async_generator_must_either_be_a_valid_promise_or_must_not_contain_a_callable_then_member);
+        }
+        function getFactsFromTypeofSwitch(start, end, witnesses, hasDefault) {
+            var facts = 0;
+            if (hasDefault) {
+                for (var i = end; i < witnesses.length; i++) {
+                    facts |= typeofNEFacts.get(witnesses[i]) || 32768;
+                }
+                for (var i = start; i < end; i++) {
+                    facts &= ~(typeofNEFacts.get(witnesses[i]) || 0);
+                }
+                for (var i = 0; i < start; i++) {
+                    facts |= typeofNEFacts.get(witnesses[i]) || 32768;
+                }
+            }
+            else {
+                for (var i = start; i < end; i++) {
+                    facts |= typeofEQFacts.get(witnesses[i]) || 128;
+                }
+                for (var i = 0; i < start; i++) {
+                    facts &= ~(typeofEQFacts.get(witnesses[i]) || 0);
+                }
+            }
+            return facts;
+        }
+        function isExhaustiveSwitchStatement(node) {
+            var links = getNodeLinks(node);
+            return links.isExhaustive !== undefined ? links.isExhaustive : (links.isExhaustive = computeExhaustiveSwitchStatement(node));
+        }
+        function computeExhaustiveSwitchStatement(node) {
+            if (node.expression.kind === 204) {
+                var operandType = getTypeOfExpression(node.expression.expression);
+                var witnesses = getSwitchClauseTypeOfWitnesses(node, false);
+                var notEqualFacts_1 = getFactsFromTypeofSwitch(0, 0, witnesses, true);
+                var type_3 = getBaseConstraintOfType(operandType) || operandType;
+                return !!(filterType(type_3, function (t) { return (getTypeFacts(t) & notEqualFacts_1) === notEqualFacts_1; }).flags & 131072);
+            }
+            var type = getTypeOfExpression(node.expression);
+            if (!isLiteralType(type)) {
+                return false;
+            }
+            var switchTypes = getSwitchClauseTypes(node);
+            if (!switchTypes.length || ts.some(switchTypes, isNeitherUnitTypeNorNever)) {
+                return false;
+            }
+            return eachTypeContainedIn(mapType(type, getRegularTypeOfLiteralType), switchTypes);
+        }
+        function functionHasImplicitReturn(func) {
+            return func.endFlowNode && isReachableFlowNode(func.endFlowNode);
+        }
+        function checkAndAggregateReturnExpressionTypes(func, checkMode) {
+            var functionFlags = ts.getFunctionFlags(func);
+            var aggregatedTypes = [];
+            var hasReturnWithNoExpression = functionHasImplicitReturn(func);
+            var hasReturnOfTypeNever = false;
+            ts.forEachReturnStatement(func.body, function (returnStatement) {
+                var expr = returnStatement.expression;
+                if (expr) {
+                    var type = checkExpressionCached(expr, checkMode && checkMode & ~8);
+                    if (functionFlags & 2) {
+                        type = checkAwaitedType(type, func, ts.Diagnostics.The_return_type_of_an_async_function_must_either_be_a_valid_promise_or_must_not_contain_a_callable_then_member);
+                    }
+                    if (type.flags & 131072) {
+                        hasReturnOfTypeNever = true;
+                    }
+                    ts.pushIfUnique(aggregatedTypes, type);
+                }
+                else {
+                    hasReturnWithNoExpression = true;
+                }
+            });
+            if (aggregatedTypes.length === 0 && !hasReturnWithNoExpression && (hasReturnOfTypeNever || mayReturnNever(func))) {
+                return undefined;
+            }
+            if (strictNullChecks && aggregatedTypes.length && hasReturnWithNoExpression &&
+                !(isJSConstructor(func) && aggregatedTypes.some(function (t) { return t.symbol === func.symbol; }))) {
+                ts.pushIfUnique(aggregatedTypes, undefinedType);
+            }
+            return aggregatedTypes;
+        }
+        function mayReturnNever(func) {
+            switch (func.kind) {
+                case 201:
+                case 202:
+                    return true;
+                case 161:
+                    return func.parent.kind === 193;
+                default:
+                    return false;
+            }
+        }
+        function checkAllCodePathsInNonVoidFunctionReturnOrThrow(func, returnType) {
+            if (!produceDiagnostics) {
+                return;
+            }
+            var functionFlags = ts.getFunctionFlags(func);
+            var type = returnType && unwrapReturnType(returnType, functionFlags);
+            if (type && maybeTypeOfKind(type, 1 | 16384)) {
+                return;
+            }
+            if (func.kind === 160 || ts.nodeIsMissing(func.body) || func.body.kind !== 223 || !functionHasImplicitReturn(func)) {
+                return;
+            }
+            var hasExplicitReturn = func.flags & 512;
+            if (type && type.flags & 131072) {
+                error(ts.getEffectiveReturnTypeNode(func), ts.Diagnostics.A_function_returning_never_cannot_have_a_reachable_end_point);
+            }
+            else if (type && !hasExplicitReturn) {
+                error(ts.getEffectiveReturnTypeNode(func), ts.Diagnostics.A_function_whose_declared_type_is_neither_void_nor_any_must_return_a_value);
+            }
+            else if (type && strictNullChecks && !isTypeAssignableTo(undefinedType, type)) {
+                error(ts.getEffectiveReturnTypeNode(func) || func, ts.Diagnostics.Function_lacks_ending_return_statement_and_return_type_does_not_include_undefined);
+            }
+            else if (compilerOptions.noImplicitReturns) {
+                if (!type) {
+                    if (!hasExplicitReturn) {
+                        return;
+                    }
+                    var inferredReturnType = getReturnTypeOfSignature(getSignatureFromDeclaration(func));
+                    if (isUnwrappedReturnTypeVoidOrAny(func, inferredReturnType)) {
+                        return;
+                    }
+                }
+                error(ts.getEffectiveReturnTypeNode(func) || func, ts.Diagnostics.Not_all_code_paths_return_a_value);
+            }
+        }
+        function checkFunctionExpressionOrObjectLiteralMethod(node, checkMode) {
+            ts.Debug.assert(node.kind !== 161 || ts.isObjectLiteralMethod(node));
+            checkNodeDeferred(node);
+            if (checkMode && checkMode & 4 && isContextSensitive(node)) {
+                if (!ts.getEffectiveReturnTypeNode(node) && !hasContextSensitiveParameters(node)) {
+                    var contextualSignature = getContextualSignature(node);
+                    if (contextualSignature && couldContainTypeVariables(getReturnTypeOfSignature(contextualSignature))) {
+                        var links = getNodeLinks(node);
+                        if (links.contextFreeType) {
+                            return links.contextFreeType;
+                        }
+                        var returnType = getReturnTypeFromBody(node, checkMode);
+                        var returnOnlySignature = createSignature(undefined, undefined, undefined, ts.emptyArray, returnType, undefined, 0, 0);
+                        var returnOnlyType = createAnonymousType(node.symbol, emptySymbols, [returnOnlySignature], ts.emptyArray, undefined, undefined);
+                        returnOnlyType.objectFlags |= 2097152;
+                        return links.contextFreeType = returnOnlyType;
+                    }
+                }
+                return anyFunctionType;
+            }
+            var hasGrammarError = checkGrammarFunctionLikeDeclaration(node);
+            if (!hasGrammarError && node.kind === 201) {
+                checkGrammarForGenerator(node);
+            }
+            contextuallyCheckFunctionExpressionOrObjectLiteralMethod(node, checkMode);
+            return getTypeOfSymbol(getSymbolOfNode(node));
+        }
+        function contextuallyCheckFunctionExpressionOrObjectLiteralMethod(node, checkMode) {
+            var links = getNodeLinks(node);
+            if (!(links.flags & 1024)) {
+                var contextualSignature = getContextualSignature(node);
+                if (!(links.flags & 1024)) {
+                    links.flags |= 1024;
+                    var signature = ts.firstOrUndefined(getSignaturesOfType(getTypeOfSymbol(getSymbolOfNode(node)), 0));
+                    if (!signature) {
+                        return;
+                    }
+                    if (isContextSensitive(node)) {
+                        if (contextualSignature) {
+                            var inferenceContext = getInferenceContext(node);
+                            if (checkMode && checkMode & 2) {
+                                inferFromAnnotatedParameters(signature, contextualSignature, inferenceContext);
+                            }
+                            var instantiatedContextualSignature = inferenceContext ?
+                                instantiateSignature(contextualSignature, inferenceContext.mapper) : contextualSignature;
+                            assignContextualParameterTypes(signature, instantiatedContextualSignature);
+                        }
+                        else {
+                            assignNonContextualParameterTypes(signature);
+                        }
+                    }
+                    if (contextualSignature && !getReturnTypeFromAnnotation(node) && !signature.resolvedReturnType) {
+                        var returnType = getReturnTypeFromBody(node, checkMode);
+                        if (!signature.resolvedReturnType) {
+                            signature.resolvedReturnType = returnType;
+                        }
+                    }
+                    checkSignatureDeclaration(node);
+                }
+            }
+        }
+        function checkFunctionExpressionOrObjectLiteralMethodDeferred(node) {
+            ts.Debug.assert(node.kind !== 161 || ts.isObjectLiteralMethod(node));
+            var functionFlags = ts.getFunctionFlags(node);
+            var returnType = getReturnTypeFromAnnotation(node);
+            checkAllCodePathsInNonVoidFunctionReturnOrThrow(node, returnType);
+            if (node.body) {
+                if (!ts.getEffectiveReturnTypeNode(node)) {
+                    getReturnTypeOfSignature(getSignatureFromDeclaration(node));
+                }
+                if (node.body.kind === 223) {
+                    checkSourceElement(node.body);
+                }
+                else {
+                    var exprType = checkExpression(node.body);
+                    var returnOrPromisedType = returnType && unwrapReturnType(returnType, functionFlags);
+                    if (returnOrPromisedType) {
+                        if ((functionFlags & 3) === 2) {
+                            var awaitedType = checkAwaitedType(exprType, node.body, ts.Diagnostics.The_return_type_of_an_async_function_must_either_be_a_valid_promise_or_must_not_contain_a_callable_then_member);
+                            checkTypeAssignableToAndOptionallyElaborate(awaitedType, returnOrPromisedType, node.body, node.body);
+                        }
+                        else {
+                            checkTypeAssignableToAndOptionallyElaborate(exprType, returnOrPromisedType, node.body, node.body);
+                        }
+                    }
+                }
+            }
+        }
+        function checkArithmeticOperandType(operand, type, diagnostic, isAwaitValid) {
+            if (isAwaitValid === void 0) { isAwaitValid = false; }
+            if (!isTypeAssignableTo(type, numberOrBigIntType)) {
+                var awaitedType = isAwaitValid && getAwaitedTypeOfPromise(type);
+                errorAndMaybeSuggestAwait(operand, !!awaitedType && isTypeAssignableTo(awaitedType, numberOrBigIntType), diagnostic);
+                return false;
+            }
+            return true;
+        }
+        function isReadonlyAssignmentDeclaration(d) {
+            if (!ts.isCallExpression(d)) {
+                return false;
+            }
+            if (!ts.isBindableObjectDefinePropertyCall(d)) {
+                return false;
+            }
+            var objectLitType = checkExpressionCached(d.arguments[2]);
+            var valueType = getTypeOfPropertyOfType(objectLitType, "value");
+            if (valueType) {
+                var writableProp = getPropertyOfType(objectLitType, "writable");
+                var writableType = writableProp && getTypeOfSymbol(writableProp);
+                if (!writableType || writableType === falseType || writableType === regularFalseType) {
+                    return true;
+                }
+                if (writableProp && writableProp.valueDeclaration && ts.isPropertyAssignment(writableProp.valueDeclaration)) {
+                    var initializer = writableProp.valueDeclaration.initializer;
+                    var rawOriginalType = checkExpression(initializer);
+                    if (rawOriginalType === falseType || rawOriginalType === regularFalseType) {
+                        return true;
+                    }
+                }
+                return false;
+            }
+            var setProp = getPropertyOfType(objectLitType, "set");
+            return !setProp;
+        }
+        function isReadonlySymbol(symbol) {
+            return !!(ts.getCheckFlags(symbol) & 8 ||
+                symbol.flags & 4 && ts.getDeclarationModifierFlagsFromSymbol(symbol) & 64 ||
+                symbol.flags & 3 && getDeclarationNodeFlagsFromSymbol(symbol) & 2 ||
+                symbol.flags & 98304 && !(symbol.flags & 65536) ||
+                symbol.flags & 8 ||
+                ts.some(symbol.declarations, isReadonlyAssignmentDeclaration));
+        }
+        function isAssignmentToReadonlyEntity(expr, symbol, assignmentKind) {
+            var _a, _b;
+            if (assignmentKind === 0) {
+                return false;
+            }
+            if (isReadonlySymbol(symbol)) {
+                if (symbol.flags & 4 &&
+                    ts.isAccessExpression(expr) &&
+                    expr.expression.kind === 104) {
+                    var ctor = ts.getContainingFunction(expr);
+                    if (!(ctor && ctor.kind === 162)) {
+                        return true;
+                    }
+                    if (symbol.valueDeclaration) {
+                        var isAssignmentDeclaration_1 = ts.isBinaryExpression(symbol.valueDeclaration);
+                        var isLocalPropertyDeclaration = ctor.parent === symbol.valueDeclaration.parent;
+                        var isLocalParameterProperty = ctor === symbol.valueDeclaration.parent;
+                        var isLocalThisPropertyAssignment = isAssignmentDeclaration_1 && ((_a = symbol.parent) === null || _a === void 0 ? void 0 : _a.valueDeclaration) === ctor.parent;
+                        var isLocalThisPropertyAssignmentConstructorFunction = isAssignmentDeclaration_1 && ((_b = symbol.parent) === null || _b === void 0 ? void 0 : _b.valueDeclaration) === ctor;
+                        var isWriteableSymbol = isLocalPropertyDeclaration
+                            || isLocalParameterProperty
+                            || isLocalThisPropertyAssignment
+                            || isLocalThisPropertyAssignmentConstructorFunction;
+                        return !isWriteableSymbol;
+                    }
+                }
+                return true;
+            }
+            if (ts.isAccessExpression(expr)) {
+                var node = ts.skipParentheses(expr.expression);
+                if (node.kind === 75) {
+                    var symbol_2 = getNodeLinks(node).resolvedSymbol;
+                    if (symbol_2.flags & 2097152) {
+                        var declaration = getDeclarationOfAliasSymbol(symbol_2);
+                        return !!declaration && declaration.kind === 256;
+                    }
+                }
+            }
+            return false;
+        }
+        function checkReferenceExpression(expr, invalidReferenceMessage, invalidOptionalChainMessage) {
+            var node = ts.skipOuterExpressions(expr, 6 | 1);
+            if (node.kind !== 75 && !ts.isAccessExpression(node)) {
+                error(expr, invalidReferenceMessage);
+                return false;
+            }
+            if (node.flags & 32) {
+                error(expr, invalidOptionalChainMessage);
+                return false;
+            }
+            return true;
+        }
+        function checkDeleteExpression(node) {
+            checkExpression(node.expression);
+            var expr = ts.skipParentheses(node.expression);
+            if (!ts.isAccessExpression(expr)) {
+                error(expr, ts.Diagnostics.The_operand_of_a_delete_operator_must_be_a_property_reference);
+                return booleanType;
+            }
+            if (expr.kind === 194 && ts.isPrivateIdentifier(expr.name)) {
+                error(expr, ts.Diagnostics.The_operand_of_a_delete_operator_cannot_be_a_private_identifier);
+            }
+            var links = getNodeLinks(expr);
+            var symbol = getExportSymbolOfValueSymbolIfExported(links.resolvedSymbol);
+            if (symbol && isReadonlySymbol(symbol)) {
+                error(expr, ts.Diagnostics.The_operand_of_a_delete_operator_cannot_be_a_read_only_property);
+            }
+            return booleanType;
+        }
+        function checkTypeOfExpression(node) {
+            checkExpression(node.expression);
+            return typeofType;
+        }
+        function checkVoidExpression(node) {
+            checkExpression(node.expression);
+            return undefinedWideningType;
+        }
+        function isTopLevelAwait(node) {
+            var container = ts.getThisContainer(node, true);
+            return ts.isSourceFile(container);
+        }
+        function checkAwaitExpression(node) {
+            if (produceDiagnostics) {
+                if (!(node.flags & 32768)) {
+                    if (isTopLevelAwait(node)) {
+                        var sourceFile = ts.getSourceFileOfNode(node);
+                        if (!hasParseDiagnostics(sourceFile)) {
+                            var span = void 0;
+                            if (!ts.isEffectiveExternalModule(sourceFile, compilerOptions)) {
+                                if (!span)
+                                    span = ts.getSpanOfTokenAtPosition(sourceFile, node.pos);
+                                var diagnostic = ts.createFileDiagnostic(sourceFile, span.start, span.length, ts.Diagnostics.await_expressions_are_only_allowed_at_the_top_level_of_a_file_when_that_file_is_a_module_but_this_file_has_no_imports_or_exports_Consider_adding_an_empty_export_to_make_this_file_a_module);
+                                diagnostics.add(diagnostic);
+                            }
+                            if ((moduleKind !== ts.ModuleKind.ESNext && moduleKind !== ts.ModuleKind.System) || languageVersion < 4) {
+                                span = ts.getSpanOfTokenAtPosition(sourceFile, node.pos);
+                                var diagnostic = ts.createFileDiagnostic(sourceFile, span.start, span.length, ts.Diagnostics.Top_level_await_expressions_are_only_allowed_when_the_module_option_is_set_to_esnext_or_system_and_the_target_option_is_set_to_es2017_or_higher);
+                                diagnostics.add(diagnostic);
+                            }
+                        }
+                    }
+                    else {
+                        var sourceFile = ts.getSourceFileOfNode(node);
+                        if (!hasParseDiagnostics(sourceFile)) {
+                            var span = ts.getSpanOfTokenAtPosition(sourceFile, node.pos);
+                            var diagnostic = ts.createFileDiagnostic(sourceFile, span.start, span.length, ts.Diagnostics.await_expressions_are_only_allowed_within_async_functions_and_at_the_top_levels_of_modules);
+                            var func = ts.getContainingFunction(node);
+                            if (func && func.kind !== 162 && (ts.getFunctionFlags(func) & 2) === 0) {
+                                var relatedInfo = ts.createDiagnosticForNode(func, ts.Diagnostics.Did_you_mean_to_mark_this_function_as_async);
+                                ts.addRelatedInfo(diagnostic, relatedInfo);
+                            }
+                            diagnostics.add(diagnostic);
+                        }
+                    }
+                }
+                if (isInParameterInitializerBeforeContainingFunction(node)) {
+                    error(node, ts.Diagnostics.await_expressions_cannot_be_used_in_a_parameter_initializer);
+                }
+            }
+            var operandType = checkExpression(node.expression);
+            var awaitedType = checkAwaitedType(operandType, node, ts.Diagnostics.Type_of_await_operand_must_either_be_a_valid_promise_or_must_not_contain_a_callable_then_member);
+            if (awaitedType === operandType && awaitedType !== errorType && !(operandType.flags & 3)) {
+                addErrorOrSuggestion(false, ts.createDiagnosticForNode(node, ts.Diagnostics.await_has_no_effect_on_the_type_of_this_expression));
+            }
+            return awaitedType;
+        }
+        function checkPrefixUnaryExpression(node) {
+            var operandType = checkExpression(node.operand);
+            if (operandType === silentNeverType) {
+                return silentNeverType;
+            }
+            switch (node.operand.kind) {
+                case 8:
+                    switch (node.operator) {
+                        case 40:
+                            return getFreshTypeOfLiteralType(getLiteralType(-node.operand.text));
+                        case 39:
+                            return getFreshTypeOfLiteralType(getLiteralType(+node.operand.text));
+                    }
+                    break;
+                case 9:
+                    if (node.operator === 40) {
+                        return getFreshTypeOfLiteralType(getLiteralType({
+                            negative: true,
+                            base10Value: ts.parsePseudoBigInt(node.operand.text)
+                        }));
+                    }
+            }
+            switch (node.operator) {
+                case 39:
+                case 40:
+                case 54:
+                    checkNonNullType(operandType, node.operand);
+                    if (maybeTypeOfKind(operandType, 12288)) {
+                        error(node.operand, ts.Diagnostics.The_0_operator_cannot_be_applied_to_type_symbol, ts.tokenToString(node.operator));
+                    }
+                    if (node.operator === 39) {
+                        if (maybeTypeOfKind(operandType, 2112)) {
+                            error(node.operand, ts.Diagnostics.Operator_0_cannot_be_applied_to_type_1, ts.tokenToString(node.operator), typeToString(getBaseTypeOfLiteralType(operandType)));
+                        }
+                        return numberType;
+                    }
+                    return getUnaryResultType(operandType);
+                case 53:
+                    checkTruthinessExpression(node.operand);
+                    var facts = getTypeFacts(operandType) & (4194304 | 8388608);
+                    return facts === 4194304 ? falseType :
+                        facts === 8388608 ? trueType :
+                            booleanType;
+                case 45:
+                case 46:
+                    var ok = checkArithmeticOperandType(node.operand, checkNonNullType(operandType, node.operand), ts.Diagnostics.An_arithmetic_operand_must_be_of_type_any_number_bigint_or_an_enum_type);
+                    if (ok) {
+                        checkReferenceExpression(node.operand, ts.Diagnostics.The_operand_of_an_increment_or_decrement_operator_must_be_a_variable_or_a_property_access, ts.Diagnostics.The_operand_of_an_increment_or_decrement_operator_may_not_be_an_optional_property_access);
+                    }
+                    return getUnaryResultType(operandType);
+            }
+            return errorType;
+        }
+        function checkPostfixUnaryExpression(node) {
+            var operandType = checkExpression(node.operand);
+            if (operandType === silentNeverType) {
+                return silentNeverType;
+            }
+            var ok = checkArithmeticOperandType(node.operand, checkNonNullType(operandType, node.operand), ts.Diagnostics.An_arithmetic_operand_must_be_of_type_any_number_bigint_or_an_enum_type);
+            if (ok) {
+                checkReferenceExpression(node.operand, ts.Diagnostics.The_operand_of_an_increment_or_decrement_operator_must_be_a_variable_or_a_property_access, ts.Diagnostics.The_operand_of_an_increment_or_decrement_operator_may_not_be_an_optional_property_access);
+            }
+            return getUnaryResultType(operandType);
+        }
+        function getUnaryResultType(operandType) {
+            if (maybeTypeOfKind(operandType, 2112)) {
+                return isTypeAssignableToKind(operandType, 3) || maybeTypeOfKind(operandType, 296)
+                    ? numberOrBigIntType
+                    : bigintType;
+            }
+            return numberType;
+        }
+        function maybeTypeOfKind(type, kind) {
+            if (type.flags & kind) {
+                return true;
+            }
+            if (type.flags & 3145728) {
+                var types = type.types;
+                for (var _i = 0, types_19 = types; _i < types_19.length; _i++) {
+                    var t = types_19[_i];
+                    if (maybeTypeOfKind(t, kind)) {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
+        function isTypeAssignableToKind(source, kind, strict) {
+            if (source.flags & kind) {
+                return true;
+            }
+            if (strict && source.flags & (3 | 16384 | 32768 | 65536)) {
+                return false;
+            }
+            return !!(kind & 296) && isTypeAssignableTo(source, numberType) ||
+                !!(kind & 2112) && isTypeAssignableTo(source, bigintType) ||
+                !!(kind & 132) && isTypeAssignableTo(source, stringType) ||
+                !!(kind & 528) && isTypeAssignableTo(source, booleanType) ||
+                !!(kind & 16384) && isTypeAssignableTo(source, voidType) ||
+                !!(kind & 131072) && isTypeAssignableTo(source, neverType) ||
+                !!(kind & 65536) && isTypeAssignableTo(source, nullType) ||
+                !!(kind & 32768) && isTypeAssignableTo(source, undefinedType) ||
+                !!(kind & 4096) && isTypeAssignableTo(source, esSymbolType) ||
+                !!(kind & 67108864) && isTypeAssignableTo(source, nonPrimitiveType);
+        }
+        function allTypesAssignableToKind(source, kind, strict) {
+            return source.flags & 1048576 ?
+                ts.every(source.types, function (subType) { return allTypesAssignableToKind(subType, kind, strict); }) :
+                isTypeAssignableToKind(source, kind, strict);
+        }
+        function isConstEnumObjectType(type) {
+            return !!(ts.getObjectFlags(type) & 16) && !!type.symbol && isConstEnumSymbol(type.symbol);
+        }
+        function isConstEnumSymbol(symbol) {
+            return (symbol.flags & 128) !== 0;
+        }
+        function checkInstanceOfExpression(left, right, leftType, rightType) {
+            if (leftType === silentNeverType || rightType === silentNeverType) {
+                return silentNeverType;
+            }
+            if (!isTypeAny(leftType) &&
+                allTypesAssignableToKind(leftType, 131068)) {
+                error(left, ts.Diagnostics.The_left_hand_side_of_an_instanceof_expression_must_be_of_type_any_an_object_type_or_a_type_parameter);
+            }
+            if (!(isTypeAny(rightType) || typeHasCallOrConstructSignatures(rightType) || isTypeSubtypeOf(rightType, globalFunctionType))) {
+                error(right, ts.Diagnostics.The_right_hand_side_of_an_instanceof_expression_must_be_of_type_any_or_of_a_type_assignable_to_the_Function_interface_type);
+            }
+            return booleanType;
+        }
+        function checkInExpression(left, right, leftType, rightType) {
+            if (leftType === silentNeverType || rightType === silentNeverType) {
+                return silentNeverType;
+            }
+            leftType = checkNonNullType(leftType, left);
+            rightType = checkNonNullType(rightType, right);
+            if (!(isTypeComparableTo(leftType, stringType) || isTypeAssignableToKind(leftType, 296 | 12288))) {
+                error(left, ts.Diagnostics.The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol);
+            }
+            if (!allTypesAssignableToKind(rightType, 67108864 | 58982400)) {
+                error(right, ts.Diagnostics.The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter);
+            }
+            return booleanType;
+        }
+        function checkObjectLiteralAssignment(node, sourceType, rightIsThis) {
+            var properties = node.properties;
+            if (strictNullChecks && properties.length === 0) {
+                return checkNonNullType(sourceType, node);
+            }
+            for (var i = 0; i < properties.length; i++) {
+                checkObjectLiteralDestructuringPropertyAssignment(node, sourceType, i, properties, rightIsThis);
+            }
+            return sourceType;
+        }
+        function checkObjectLiteralDestructuringPropertyAssignment(node, objectLiteralType, propertyIndex, allProperties, rightIsThis) {
+            if (rightIsThis === void 0) { rightIsThis = false; }
+            var properties = node.properties;
+            var property = properties[propertyIndex];
+            if (property.kind === 281 || property.kind === 282) {
+                var name = property.name;
+                var exprType = getLiteralTypeFromPropertyName(name);
+                if (isTypeUsableAsPropertyName(exprType)) {
+                    var text = getPropertyNameFromType(exprType);
+                    var prop = getPropertyOfType(objectLiteralType, text);
+                    if (prop) {
+                        markPropertyAsReferenced(prop, property, rightIsThis);
+                        checkPropertyAccessibility(property, false, objectLiteralType, prop);
+                    }
+                }
+                var elementType = getIndexedAccessType(objectLiteralType, exprType, name);
+                var type = getFlowTypeOfDestructuring(property, elementType);
+                return checkDestructuringAssignment(property.kind === 282 ? property : property.initializer, type);
+            }
+            else if (property.kind === 283) {
+                if (propertyIndex < properties.length - 1) {
+                    error(property, ts.Diagnostics.A_rest_element_must_be_last_in_a_destructuring_pattern);
+                }
+                else {
+                    if (languageVersion < 99) {
+                        checkExternalEmitHelpers(property, 4);
+                    }
+                    var nonRestNames = [];
+                    if (allProperties) {
+                        for (var _i = 0, allProperties_1 = allProperties; _i < allProperties_1.length; _i++) {
+                            var otherProperty = allProperties_1[_i];
+                            if (!ts.isSpreadAssignment(otherProperty)) {
+                                nonRestNames.push(otherProperty.name);
+                            }
+                        }
+                    }
+                    var type = getRestType(objectLiteralType, nonRestNames, objectLiteralType.symbol);
+                    checkGrammarForDisallowedTrailingComma(allProperties, ts.Diagnostics.A_rest_parameter_or_binding_pattern_may_not_have_a_trailing_comma);
+                    return checkDestructuringAssignment(property.expression, type);
+                }
+            }
+            else {
+                error(property, ts.Diagnostics.Property_assignment_expected);
+            }
+        }
+        function checkArrayLiteralAssignment(node, sourceType, checkMode) {
+            var elements = node.elements;
+            if (languageVersion < 2 && compilerOptions.downlevelIteration) {
+                checkExternalEmitHelpers(node, 512);
+            }
+            var elementType = checkIteratedTypeOrElementType(65, sourceType, undefinedType, node) || errorType;
+            for (var i = 0; i < elements.length; i++) {
+                checkArrayLiteralDestructuringElementAssignment(node, sourceType, i, elementType, checkMode);
+            }
+            return sourceType;
+        }
+        function checkArrayLiteralDestructuringElementAssignment(node, sourceType, elementIndex, elementType, checkMode) {
+            var elements = node.elements;
+            var element = elements[elementIndex];
+            if (element.kind !== 215) {
+                if (element.kind !== 213) {
+                    var indexType = getLiteralType(elementIndex);
+                    if (isArrayLikeType(sourceType)) {
+                        var accessFlags = hasDefaultValue(element) ? 8 : 0;
+                        var elementType_2 = getIndexedAccessTypeOrUndefined(sourceType, indexType, createSyntheticExpression(element, indexType), accessFlags) || errorType;
+                        var assignedType = hasDefaultValue(element) ? getTypeWithFacts(elementType_2, 524288) : elementType_2;
+                        var type = getFlowTypeOfDestructuring(element, assignedType);
+                        return checkDestructuringAssignment(element, type, checkMode);
+                    }
+                    return checkDestructuringAssignment(element, elementType, checkMode);
+                }
+                if (elementIndex < elements.length - 1) {
+                    error(element, ts.Diagnostics.A_rest_element_must_be_last_in_a_destructuring_pattern);
+                }
+                else {
+                    var restExpression = element.expression;
+                    if (restExpression.kind === 209 && restExpression.operatorToken.kind === 62) {
+                        error(restExpression.operatorToken, ts.Diagnostics.A_rest_element_cannot_have_an_initializer);
+                    }
+                    else {
+                        checkGrammarForDisallowedTrailingComma(node.elements, ts.Diagnostics.A_rest_parameter_or_binding_pattern_may_not_have_a_trailing_comma);
+                        var type = everyType(sourceType, isTupleType) ?
+                            mapType(sourceType, function (t) { return sliceTupleType(t, elementIndex); }) :
+                            createArrayType(elementType);
+                        return checkDestructuringAssignment(restExpression, type, checkMode);
+                    }
+                }
+            }
+            return undefined;
+        }
+        function checkDestructuringAssignment(exprOrAssignment, sourceType, checkMode, rightIsThis) {
+            var target;
+            if (exprOrAssignment.kind === 282) {
+                var prop = exprOrAssignment;
+                if (prop.objectAssignmentInitializer) {
+                    if (strictNullChecks &&
+                        !(getFalsyFlags(checkExpression(prop.objectAssignmentInitializer)) & 32768)) {
+                        sourceType = getTypeWithFacts(sourceType, 524288);
+                    }
+                    checkBinaryLikeExpression(prop.name, prop.equalsToken, prop.objectAssignmentInitializer, checkMode);
+                }
+                target = exprOrAssignment.name;
+            }
+            else {
+                target = exprOrAssignment;
+            }
+            if (target.kind === 209 && target.operatorToken.kind === 62) {
+                checkBinaryExpression(target, checkMode);
+                target = target.left;
+            }
+            if (target.kind === 193) {
+                return checkObjectLiteralAssignment(target, sourceType, rightIsThis);
+            }
+            if (target.kind === 192) {
+                return checkArrayLiteralAssignment(target, sourceType, checkMode);
+            }
+            return checkReferenceAssignment(target, sourceType, checkMode);
+        }
+        function checkReferenceAssignment(target, sourceType, checkMode) {
+            var targetType = checkExpression(target, checkMode);
+            var error = target.parent.kind === 283 ?
+                ts.Diagnostics.The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access :
+                ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access;
+            var optionalError = target.parent.kind === 283 ?
+                ts.Diagnostics.The_target_of_an_object_rest_assignment_may_not_be_an_optional_property_access :
+                ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_may_not_be_an_optional_property_access;
+            if (checkReferenceExpression(target, error, optionalError)) {
+                checkTypeAssignableToAndOptionallyElaborate(sourceType, targetType, target, target);
+            }
+            if (ts.isPrivateIdentifierPropertyAccessExpression(target)) {
+                checkExternalEmitHelpers(target.parent, 524288);
+            }
+            return sourceType;
+        }
+        function isSideEffectFree(node) {
+            node = ts.skipParentheses(node);
+            switch (node.kind) {
+                case 75:
+                case 10:
+                case 13:
+                case 198:
+                case 211:
+                case 14:
+                case 8:
+                case 9:
+                case 106:
+                case 91:
+                case 100:
+                case 146:
+                case 201:
+                case 214:
+                case 202:
+                case 192:
+                case 193:
+                case 204:
+                case 218:
+                case 267:
+                case 266:
+                    return true;
+                case 210:
+                    return isSideEffectFree(node.whenTrue) &&
+                        isSideEffectFree(node.whenFalse);
+                case 209:
+                    if (ts.isAssignmentOperator(node.operatorToken.kind)) {
+                        return false;
+                    }
+                    return isSideEffectFree(node.left) &&
+                        isSideEffectFree(node.right);
+                case 207:
+                case 208:
+                    switch (node.operator) {
+                        case 53:
+                        case 39:
+                        case 40:
+                        case 54:
+                            return true;
+                    }
+                    return false;
+                case 205:
+                case 199:
+                case 217:
+                default:
+                    return false;
+            }
+        }
+        function isTypeEqualityComparableTo(source, target) {
+            return (target.flags & 98304) !== 0 || isTypeComparableTo(source, target);
+        }
+        function checkBinaryExpression(node, checkMode) {
+            var workStacks = {
+                expr: [node],
+                state: [0],
+                leftType: [undefined]
+            };
+            var stackIndex = 0;
+            var lastResult;
+            while (stackIndex >= 0) {
+                node = workStacks.expr[stackIndex];
+                switch (workStacks.state[stackIndex]) {
+                    case 0: {
+                        if (ts.isInJSFile(node) && ts.getAssignedExpandoInitializer(node)) {
+                            finishInvocation(checkExpression(node.right, checkMode));
+                            break;
+                        }
+                        checkGrammarNullishCoalesceWithLogicalExpression(node);
+                        var operator = node.operatorToken.kind;
+                        if (operator === 62 && (node.left.kind === 193 || node.left.kind === 192)) {
+                            finishInvocation(checkDestructuringAssignment(node.left, checkExpression(node.right, checkMode), checkMode, node.right.kind === 104));
+                            break;
+                        }
+                        advanceState(1);
+                        maybeCheckExpression(node.left);
+                        break;
+                    }
+                    case 1: {
+                        var leftType = lastResult;
+                        workStacks.leftType[stackIndex] = leftType;
+                        var operator = node.operatorToken.kind;
+                        if (operator === 55 || operator === 56 || operator === 60) {
+                            checkTruthinessOfType(leftType, node.left);
+                        }
+                        advanceState(2);
+                        maybeCheckExpression(node.right);
+                        break;
+                    }
+                    case 2: {
+                        var leftType = workStacks.leftType[stackIndex];
+                        var rightType = lastResult;
+                        finishInvocation(checkBinaryLikeExpressionWorker(node.left, node.operatorToken, node.right, leftType, rightType, node));
+                        break;
+                    }
+                    default: return ts.Debug.fail("Invalid state " + workStacks.state[stackIndex] + " for checkBinaryExpression");
+                }
+            }
+            return lastResult;
+            function finishInvocation(result) {
+                lastResult = result;
+                stackIndex--;
+            }
+            function advanceState(nextState) {
+                workStacks.state[stackIndex] = nextState;
+            }
+            function maybeCheckExpression(node) {
+                if (ts.isBinaryExpression(node)) {
+                    stackIndex++;
+                    workStacks.expr[stackIndex] = node;
+                    workStacks.state[stackIndex] = 0;
+                    workStacks.leftType[stackIndex] = undefined;
+                }
+                else {
+                    lastResult = checkExpression(node, checkMode);
+                }
+            }
+        }
+        function checkGrammarNullishCoalesceWithLogicalExpression(node) {
+            var left = node.left, operatorToken = node.operatorToken, right = node.right;
+            if (operatorToken.kind === 60) {
+                if (ts.isBinaryExpression(left) && (left.operatorToken.kind === 56 || left.operatorToken.kind === 55)) {
+                    grammarErrorOnNode(left, ts.Diagnostics._0_and_1_operations_cannot_be_mixed_without_parentheses, ts.tokenToString(left.operatorToken.kind), ts.tokenToString(operatorToken.kind));
+                }
+                if (ts.isBinaryExpression(right) && (right.operatorToken.kind === 56 || right.operatorToken.kind === 55)) {
+                    grammarErrorOnNode(right, ts.Diagnostics._0_and_1_operations_cannot_be_mixed_without_parentheses, ts.tokenToString(right.operatorToken.kind), ts.tokenToString(operatorToken.kind));
+                }
+            }
+        }
+        function checkBinaryLikeExpression(left, operatorToken, right, checkMode, errorNode) {
+            var operator = operatorToken.kind;
+            if (operator === 62 && (left.kind === 193 || left.kind === 192)) {
+                return checkDestructuringAssignment(left, checkExpression(right, checkMode), checkMode, right.kind === 104);
+            }
+            var leftType;
+            if (operator === 55 || operator === 56 || operator === 60) {
+                leftType = checkTruthinessExpression(left, checkMode);
+            }
+            else {
+                leftType = checkExpression(left, checkMode);
+            }
+            var rightType = checkExpression(right, checkMode);
+            return checkBinaryLikeExpressionWorker(left, operatorToken, right, leftType, rightType, errorNode);
+        }
+        function checkBinaryLikeExpressionWorker(left, operatorToken, right, leftType, rightType, errorNode) {
+            var operator = operatorToken.kind;
+            switch (operator) {
+                case 41:
+                case 42:
+                case 65:
+                case 66:
+                case 43:
+                case 67:
+                case 44:
+                case 68:
+                case 40:
+                case 64:
+                case 47:
+                case 69:
+                case 48:
+                case 70:
+                case 49:
+                case 71:
+                case 51:
+                case 73:
+                case 52:
+                case 74:
+                case 50:
+                case 72:
+                    if (leftType === silentNeverType || rightType === silentNeverType) {
+                        return silentNeverType;
+                    }
+                    leftType = checkNonNullType(leftType, left);
+                    rightType = checkNonNullType(rightType, right);
+                    var suggestedOperator = void 0;
+                    if ((leftType.flags & 528) &&
+                        (rightType.flags & 528) &&
+                        (suggestedOperator = getSuggestedBooleanOperator(operatorToken.kind)) !== undefined) {
+                        error(errorNode || operatorToken, ts.Diagnostics.The_0_operator_is_not_allowed_for_boolean_types_Consider_using_1_instead, ts.tokenToString(operatorToken.kind), ts.tokenToString(suggestedOperator));
+                        return numberType;
+                    }
+                    else {
+                        var leftOk = checkArithmeticOperandType(left, leftType, ts.Diagnostics.The_left_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_bigint_or_an_enum_type, true);
+                        var rightOk = checkArithmeticOperandType(right, rightType, ts.Diagnostics.The_right_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_bigint_or_an_enum_type, true);
+                        var resultType_1;
+                        if ((isTypeAssignableToKind(leftType, 3) && isTypeAssignableToKind(rightType, 3)) ||
+                            !(maybeTypeOfKind(leftType, 2112) || maybeTypeOfKind(rightType, 2112))) {
+                            resultType_1 = numberType;
+                        }
+                        else if (bothAreBigIntLike(leftType, rightType)) {
+                            switch (operator) {
+                                case 49:
+                                case 71:
+                                    reportOperatorError();
+                            }
+                            resultType_1 = bigintType;
+                        }
+                        else {
+                            reportOperatorError(bothAreBigIntLike);
+                            resultType_1 = errorType;
+                        }
+                        if (leftOk && rightOk) {
+                            checkAssignmentOperator(resultType_1);
+                        }
+                        return resultType_1;
+                    }
+                case 39:
+                case 63:
+                    if (leftType === silentNeverType || rightType === silentNeverType) {
+                        return silentNeverType;
+                    }
+                    if (!isTypeAssignableToKind(leftType, 132) && !isTypeAssignableToKind(rightType, 132)) {
+                        leftType = checkNonNullType(leftType, left);
+                        rightType = checkNonNullType(rightType, right);
+                    }
+                    var resultType = void 0;
+                    if (isTypeAssignableToKind(leftType, 296, true) && isTypeAssignableToKind(rightType, 296, true)) {
+                        resultType = numberType;
+                    }
+                    else if (isTypeAssignableToKind(leftType, 2112, true) && isTypeAssignableToKind(rightType, 2112, true)) {
+                        resultType = bigintType;
+                    }
+                    else if (isTypeAssignableToKind(leftType, 132, true) || isTypeAssignableToKind(rightType, 132, true)) {
+                        resultType = stringType;
+                    }
+                    else if (isTypeAny(leftType) || isTypeAny(rightType)) {
+                        resultType = leftType === errorType || rightType === errorType ? errorType : anyType;
+                    }
+                    if (resultType && !checkForDisallowedESSymbolOperand(operator)) {
+                        return resultType;
+                    }
+                    if (!resultType) {
+                        var closeEnoughKind_1 = 296 | 2112 | 132 | 3;
+                        reportOperatorError(function (left, right) {
+                            return isTypeAssignableToKind(left, closeEnoughKind_1) &&
+                                isTypeAssignableToKind(right, closeEnoughKind_1);
+                        });
+                        return anyType;
+                    }
+                    if (operator === 63) {
+                        checkAssignmentOperator(resultType);
+                    }
+                    return resultType;
+                case 29:
+                case 31:
+                case 32:
+                case 33:
+                    if (checkForDisallowedESSymbolOperand(operator)) {
+                        leftType = getBaseTypeOfLiteralType(checkNonNullType(leftType, left));
+                        rightType = getBaseTypeOfLiteralType(checkNonNullType(rightType, right));
+                        reportOperatorErrorUnless(function (left, right) {
+                            return isTypeComparableTo(left, right) || isTypeComparableTo(right, left) || (isTypeAssignableTo(left, numberOrBigIntType) && isTypeAssignableTo(right, numberOrBigIntType));
+                        });
+                    }
+                    return booleanType;
+                case 34:
+                case 35:
+                case 36:
+                case 37:
+                    reportOperatorErrorUnless(function (left, right) { return isTypeEqualityComparableTo(left, right) || isTypeEqualityComparableTo(right, left); });
+                    return booleanType;
+                case 98:
+                    return checkInstanceOfExpression(left, right, leftType, rightType);
+                case 97:
+                    return checkInExpression(left, right, leftType, rightType);
+                case 55:
+                    return getTypeFacts(leftType) & 4194304 ?
+                        getUnionType([extractDefinitelyFalsyTypes(strictNullChecks ? leftType : getBaseTypeOfLiteralType(rightType)), rightType]) :
+                        leftType;
+                case 56:
+                    return getTypeFacts(leftType) & 8388608 ?
+                        getUnionType([removeDefinitelyFalsyTypes(leftType), rightType], 2) :
+                        leftType;
+                case 60:
+                    return getTypeFacts(leftType) & 262144 ?
+                        getUnionType([getNonNullableType(leftType), rightType], 2) :
+                        leftType;
+                case 62:
+                    var declKind = ts.isBinaryExpression(left.parent) ? ts.getAssignmentDeclarationKind(left.parent) : 0;
+                    checkAssignmentDeclaration(declKind, rightType);
+                    if (isAssignmentDeclaration(declKind)) {
+                        if (!(rightType.flags & 524288) ||
+                            declKind !== 2 &&
+                                declKind !== 6 &&
+                                !isEmptyObjectType(rightType) &&
+                                !isFunctionObjectType(rightType) &&
+                                !(ts.getObjectFlags(rightType) & 1)) {
+                            checkAssignmentOperator(rightType);
+                        }
+                        return leftType;
+                    }
+                    else {
+                        checkAssignmentOperator(rightType);
+                        return getRegularTypeOfObjectLiteral(rightType);
+                    }
+                case 27:
+                    if (!compilerOptions.allowUnreachableCode && isSideEffectFree(left) && !isEvalNode(right)) {
+                        error(left, ts.Diagnostics.Left_side_of_comma_operator_is_unused_and_has_no_side_effects);
+                    }
+                    return rightType;
+                default:
+                    return ts.Debug.fail();
+            }
+            function bothAreBigIntLike(left, right) {
+                return isTypeAssignableToKind(left, 2112) && isTypeAssignableToKind(right, 2112);
+            }
+            function checkAssignmentDeclaration(kind, rightType) {
+                if (kind === 2) {
+                    for (var _i = 0, _a = getPropertiesOfObjectType(rightType); _i < _a.length; _i++) {
+                        var prop = _a[_i];
+                        var propType = getTypeOfSymbol(prop);
+                        if (propType.symbol && propType.symbol.flags & 32) {
+                            var name = prop.escapedName;
+                            var symbol = resolveName(prop.valueDeclaration, name, 788968, undefined, name, false);
+                            if (symbol && symbol.declarations.some(ts.isJSDocTypedefTag)) {
+                                addDuplicateDeclarationErrorsForSymbols(symbol, ts.Diagnostics.Duplicate_identifier_0, ts.unescapeLeadingUnderscores(name), prop);
+                                addDuplicateDeclarationErrorsForSymbols(prop, ts.Diagnostics.Duplicate_identifier_0, ts.unescapeLeadingUnderscores(name), symbol);
+                            }
+                        }
+                    }
+                }
+            }
+            function isEvalNode(node) {
+                return node.kind === 75 && node.escapedText === "eval";
+            }
+            function checkForDisallowedESSymbolOperand(operator) {
+                var offendingSymbolOperand = maybeTypeOfKind(leftType, 12288) ? left :
+                    maybeTypeOfKind(rightType, 12288) ? right :
+                        undefined;
+                if (offendingSymbolOperand) {
+                    error(offendingSymbolOperand, ts.Diagnostics.The_0_operator_cannot_be_applied_to_type_symbol, ts.tokenToString(operator));
+                    return false;
+                }
+                return true;
+            }
+            function getSuggestedBooleanOperator(operator) {
+                switch (operator) {
+                    case 51:
+                    case 73:
+                        return 56;
+                    case 52:
+                    case 74:
+                        return 37;
+                    case 50:
+                    case 72:
+                        return 55;
+                    default:
+                        return undefined;
+                }
+            }
+            function checkAssignmentOperator(valueType) {
+                if (produceDiagnostics && ts.isAssignmentOperator(operator)) {
+                    if (checkReferenceExpression(left, ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access, ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_may_not_be_an_optional_property_access)
+                        && (!ts.isIdentifier(left) || ts.unescapeLeadingUnderscores(left.escapedText) !== "exports")) {
+                        checkTypeAssignableToAndOptionallyElaborate(valueType, leftType, left, right);
+                    }
+                }
+            }
+            function isAssignmentDeclaration(kind) {
+                switch (kind) {
+                    case 2:
+                        return true;
+                    case 1:
+                    case 5:
+                    case 6:
+                    case 3:
+                    case 4:
+                        var symbol = getSymbolOfNode(left);
+                        var init = ts.getAssignedExpandoInitializer(right);
+                        return init && ts.isObjectLiteralExpression(init) &&
+                            symbol && ts.hasEntries(symbol.exports);
+                    default:
+                        return false;
+                }
+            }
+            function reportOperatorErrorUnless(typesAreCompatible) {
+                if (!typesAreCompatible(leftType, rightType)) {
+                    reportOperatorError(typesAreCompatible);
+                    return true;
+                }
+                return false;
+            }
+            function reportOperatorError(isRelated) {
+                var _a;
+                var wouldWorkWithAwait = false;
+                var errNode = errorNode || operatorToken;
+                if (isRelated) {
+                    var awaitedLeftType = getAwaitedType(leftType);
+                    var awaitedRightType = getAwaitedType(rightType);
+                    wouldWorkWithAwait = !(awaitedLeftType === leftType && awaitedRightType === rightType)
+                        && !!(awaitedLeftType && awaitedRightType)
+                        && isRelated(awaitedLeftType, awaitedRightType);
+                }
+                var effectiveLeft = leftType;
+                var effectiveRight = rightType;
+                if (!wouldWorkWithAwait && isRelated) {
+                    _a = getBaseTypesIfUnrelated(leftType, rightType, isRelated), effectiveLeft = _a[0], effectiveRight = _a[1];
+                }
+                var _b = getTypeNamesForErrorDisplay(effectiveLeft, effectiveRight), leftStr = _b[0], rightStr = _b[1];
+                if (!tryGiveBetterPrimaryError(errNode, wouldWorkWithAwait, leftStr, rightStr)) {
+                    errorAndMaybeSuggestAwait(errNode, wouldWorkWithAwait, ts.Diagnostics.Operator_0_cannot_be_applied_to_types_1_and_2, ts.tokenToString(operatorToken.kind), leftStr, rightStr);
+                }
+            }
+            function tryGiveBetterPrimaryError(errNode, maybeMissingAwait, leftStr, rightStr) {
+                var typeName;
+                switch (operatorToken.kind) {
+                    case 36:
+                    case 34:
+                        typeName = "false";
+                        break;
+                    case 37:
+                    case 35:
+                        typeName = "true";
+                }
+                if (typeName) {
+                    return errorAndMaybeSuggestAwait(errNode, maybeMissingAwait, ts.Diagnostics.This_condition_will_always_return_0_since_the_types_1_and_2_have_no_overlap, typeName, leftStr, rightStr);
+                }
+                return undefined;
+            }
+        }
+        function getBaseTypesIfUnrelated(leftType, rightType, isRelated) {
+            var effectiveLeft = leftType;
+            var effectiveRight = rightType;
+            var leftBase = getBaseTypeOfLiteralType(leftType);
+            var rightBase = getBaseTypeOfLiteralType(rightType);
+            if (!isRelated(leftBase, rightBase)) {
+                effectiveLeft = leftBase;
+                effectiveRight = rightBase;
+            }
+            return [effectiveLeft, effectiveRight];
+        }
+        function checkYieldExpression(node) {
+            if (produceDiagnostics) {
+                if (!(node.flags & 8192)) {
+                    grammarErrorOnFirstToken(node, ts.Diagnostics.A_yield_expression_is_only_allowed_in_a_generator_body);
+                }
+                if (isInParameterInitializerBeforeContainingFunction(node)) {
+                    error(node, ts.Diagnostics.yield_expressions_cannot_be_used_in_a_parameter_initializer);
+                }
+            }
+            var func = ts.getContainingFunction(node);
+            if (!func)
+                return anyType;
+            var functionFlags = ts.getFunctionFlags(func);
+            if (!(functionFlags & 1)) {
+                return anyType;
+            }
+            var isAsync = (functionFlags & 2) !== 0;
+            if (node.asteriskToken) {
+                if (isAsync && languageVersion < 99) {
+                    checkExternalEmitHelpers(node, 53248);
+                }
+                if (!isAsync && languageVersion < 2 && compilerOptions.downlevelIteration) {
+                    checkExternalEmitHelpers(node, 256);
+                }
+            }
+            var returnType = getReturnTypeFromAnnotation(func);
+            var iterationTypes = returnType && getIterationTypesOfGeneratorFunctionReturnType(returnType, isAsync);
+            var signatureYieldType = iterationTypes && iterationTypes.yieldType || anyType;
+            var signatureNextType = iterationTypes && iterationTypes.nextType || anyType;
+            var resolvedSignatureNextType = isAsync ? getAwaitedType(signatureNextType) || anyType : signatureNextType;
+            var yieldExpressionType = node.expression ? checkExpression(node.expression) : undefinedWideningType;
+            var yieldedType = getYieldedTypeOfYieldExpression(node, yieldExpressionType, resolvedSignatureNextType, isAsync);
+            if (returnType && yieldedType) {
+                checkTypeAssignableToAndOptionallyElaborate(yieldedType, signatureYieldType, node.expression || node, node.expression);
+            }
+            if (node.asteriskToken) {
+                var use = isAsync ? 19 : 17;
+                return getIterationTypeOfIterable(use, 1, yieldExpressionType, node.expression)
+                    || anyType;
+            }
+            else if (returnType) {
+                return getIterationTypeOfGeneratorFunctionReturnType(2, returnType, isAsync)
+                    || anyType;
+            }
+            return getContextualIterationType(2, func) || anyType;
+        }
+        function checkConditionalExpression(node, checkMode) {
+            var type = checkTruthinessExpression(node.condition);
+            checkTestingKnownTruthyCallableType(node.condition, node.whenTrue, type);
+            var type1 = checkExpression(node.whenTrue, checkMode);
+            var type2 = checkExpression(node.whenFalse, checkMode);
+            return getUnionType([type1, type2], 2);
+        }
+        function checkTemplateExpression(node) {
+            ts.forEach(node.templateSpans, function (templateSpan) {
+                if (maybeTypeOfKind(checkExpression(templateSpan.expression), 12288)) {
+                    error(templateSpan.expression, ts.Diagnostics.Implicit_conversion_of_a_symbol_to_a_string_will_fail_at_runtime_Consider_wrapping_this_expression_in_String);
+                }
+            });
+            return stringType;
+        }
+        function getContextNode(node) {
+            if (node.kind === 274 && !ts.isJsxSelfClosingElement(node.parent)) {
+                return node.parent.parent;
+            }
+            return node;
+        }
+        function checkExpressionWithContextualType(node, contextualType, inferenceContext, checkMode) {
+            var context = getContextNode(node);
+            var saveContextualType = context.contextualType;
+            var saveInferenceContext = context.inferenceContext;
+            try {
+                context.contextualType = contextualType;
+                context.inferenceContext = inferenceContext;
+                var type = checkExpression(node, checkMode | 1 | (inferenceContext ? 2 : 0));
+                var result = maybeTypeOfKind(type, 2944) && isLiteralOfContextualType(type, instantiateContextualType(contextualType, node)) ?
+                    getRegularTypeOfLiteralType(type) : type;
+                return result;
+            }
+            finally {
+                context.contextualType = saveContextualType;
+                context.inferenceContext = saveInferenceContext;
+            }
+        }
+        function checkExpressionCached(node, checkMode) {
+            var links = getNodeLinks(node);
+            if (!links.resolvedType) {
+                if (checkMode && checkMode !== 0) {
+                    return checkExpression(node, checkMode);
+                }
+                var saveFlowLoopStart = flowLoopStart;
+                var saveFlowTypeCache = flowTypeCache;
+                flowLoopStart = flowLoopCount;
+                flowTypeCache = undefined;
+                links.resolvedType = checkExpression(node, checkMode);
+                flowTypeCache = saveFlowTypeCache;
+                flowLoopStart = saveFlowLoopStart;
+            }
+            return links.resolvedType;
+        }
+        function isTypeAssertion(node) {
+            node = ts.skipParentheses(node);
+            return node.kind === 199 || node.kind === 217;
+        }
+        function checkDeclarationInitializer(declaration, contextualType) {
+            var initializer = ts.getEffectiveInitializer(declaration);
+            var type = getQuickTypeOfExpression(initializer) ||
+                (contextualType ? checkExpressionWithContextualType(initializer, contextualType, undefined, 0) : checkExpressionCached(initializer));
+            return ts.isParameter(declaration) && declaration.name.kind === 190 &&
+                isTupleType(type) && !type.target.hasRestElement && getTypeReferenceArity(type) < declaration.name.elements.length ?
+                padTupleType(type, declaration.name) : type;
+        }
+        function padTupleType(type, pattern) {
+            var patternElements = pattern.elements;
+            var arity = getTypeReferenceArity(type);
+            var elementTypes = arity ? getTypeArguments(type).slice() : [];
+            for (var i = arity; i < patternElements.length; i++) {
+                var e = patternElements[i];
+                if (i < patternElements.length - 1 || !(e.kind === 191 && e.dotDotDotToken)) {
+                    elementTypes.push(!ts.isOmittedExpression(e) && hasDefaultValue(e) ? getTypeFromBindingElement(e, false, false) : anyType);
+                    if (!ts.isOmittedExpression(e) && !hasDefaultValue(e)) {
+                        reportImplicitAny(e, anyType);
+                    }
+                }
+            }
+            return createTupleType(elementTypes, type.target.minLength, false, type.target.readonly);
+        }
+        function widenTypeInferredFromInitializer(declaration, type) {
+            var widened = ts.getCombinedNodeFlags(declaration) & 2 || ts.isDeclarationReadonly(declaration) ? type : getWidenedLiteralType(type);
+            if (ts.isInJSFile(declaration)) {
+                if (widened.flags & 98304) {
+                    reportImplicitAny(declaration, anyType);
+                    return anyType;
+                }
+                else if (isEmptyArrayLiteralType(widened)) {
+                    reportImplicitAny(declaration, anyArrayType);
+                    return anyArrayType;
+                }
+            }
+            return widened;
+        }
+        function isLiteralOfContextualType(candidateType, contextualType) {
+            if (contextualType) {
+                if (contextualType.flags & 3145728) {
+                    var types = contextualType.types;
+                    return ts.some(types, function (t) { return isLiteralOfContextualType(candidateType, t); });
+                }
+                if (contextualType.flags & 58982400) {
+                    var constraint = getBaseConstraintOfType(contextualType) || unknownType;
+                    return maybeTypeOfKind(constraint, 4) && maybeTypeOfKind(candidateType, 128) ||
+                        maybeTypeOfKind(constraint, 8) && maybeTypeOfKind(candidateType, 256) ||
+                        maybeTypeOfKind(constraint, 64) && maybeTypeOfKind(candidateType, 2048) ||
+                        maybeTypeOfKind(constraint, 4096) && maybeTypeOfKind(candidateType, 8192) ||
+                        isLiteralOfContextualType(candidateType, constraint);
+                }
+                return !!(contextualType.flags & (128 | 4194304) && maybeTypeOfKind(candidateType, 128) ||
+                    contextualType.flags & 256 && maybeTypeOfKind(candidateType, 256) ||
+                    contextualType.flags & 2048 && maybeTypeOfKind(candidateType, 2048) ||
+                    contextualType.flags & 512 && maybeTypeOfKind(candidateType, 512) ||
+                    contextualType.flags & 8192 && maybeTypeOfKind(candidateType, 8192));
+            }
+            return false;
+        }
+        function isConstContext(node) {
+            var parent = node.parent;
+            return ts.isAssertionExpression(parent) && ts.isConstTypeReference(parent.type) ||
+                (ts.isParenthesizedExpression(parent) || ts.isArrayLiteralExpression(parent) || ts.isSpreadElement(parent)) && isConstContext(parent) ||
+                (ts.isPropertyAssignment(parent) || ts.isShorthandPropertyAssignment(parent)) && isConstContext(parent.parent);
+        }
+        function checkExpressionForMutableLocation(node, checkMode, contextualType, forceTuple) {
+            var type = checkExpression(node, checkMode, forceTuple);
+            return isConstContext(node) ? getRegularTypeOfLiteralType(type) :
+                isTypeAssertion(node) ? type :
+                    getWidenedLiteralLikeTypeForContextualType(type, instantiateContextualType(arguments.length === 2 ? getContextualType(node) : contextualType, node));
+        }
+        function checkPropertyAssignment(node, checkMode) {
+            if (node.name.kind === 154) {
+                checkComputedPropertyName(node.name);
+            }
+            return checkExpressionForMutableLocation(node.initializer, checkMode);
+        }
+        function checkObjectLiteralMethod(node, checkMode) {
+            checkGrammarMethod(node);
+            if (node.name.kind === 154) {
+                checkComputedPropertyName(node.name);
+            }
+            var uninstantiatedType = checkFunctionExpressionOrObjectLiteralMethod(node, checkMode);
+            return instantiateTypeWithSingleGenericCallSignature(node, uninstantiatedType, checkMode);
+        }
+        function instantiateTypeWithSingleGenericCallSignature(node, type, checkMode) {
+            if (checkMode && checkMode & (2 | 8)) {
+                var callSignature = getSingleSignature(type, 0, true);
+                var constructSignature = getSingleSignature(type, 1, true);
+                var signature = callSignature || constructSignature;
+                if (signature && signature.typeParameters) {
+                    var contextualType = getApparentTypeOfContextualType(node, 2);
+                    if (contextualType) {
+                        var contextualSignature = getSingleSignature(getNonNullableType(contextualType), callSignature ? 0 : 1, false);
+                        if (contextualSignature && !contextualSignature.typeParameters) {
+                            if (checkMode & 8) {
+                                skippedGenericFunction(node, checkMode);
+                                return anyFunctionType;
+                            }
+                            var context = getInferenceContext(node);
+                            var returnType = context.signature && getReturnTypeOfSignature(context.signature);
+                            var returnSignature = returnType && getSingleCallOrConstructSignature(returnType);
+                            if (returnSignature && !returnSignature.typeParameters && !ts.every(context.inferences, hasInferenceCandidates)) {
+                                var uniqueTypeParameters = getUniqueTypeParameters(context, signature.typeParameters);
+                                var instantiatedSignature = getSignatureInstantiationWithoutFillingInTypeArguments(signature, uniqueTypeParameters);
+                                var inferences_3 = ts.map(context.inferences, function (info) { return createInferenceInfo(info.typeParameter); });
+                                applyToParameterTypes(instantiatedSignature, contextualSignature, function (source, target) {
+                                    inferTypes(inferences_3, source, target, 0, true);
+                                });
+                                if (ts.some(inferences_3, hasInferenceCandidates)) {
+                                    applyToReturnTypes(instantiatedSignature, contextualSignature, function (source, target) {
+                                        inferTypes(inferences_3, source, target);
+                                    });
+                                    if (!hasOverlappingInferences(context.inferences, inferences_3)) {
+                                        mergeInferences(context.inferences, inferences_3);
+                                        context.inferredTypeParameters = ts.concatenate(context.inferredTypeParameters, uniqueTypeParameters);
+                                        return getOrCreateTypeFromSignature(instantiatedSignature);
+                                    }
+                                }
+                            }
+                            return getOrCreateTypeFromSignature(instantiateSignatureInContextOf(signature, contextualSignature, context));
+                        }
+                    }
+                }
+            }
+            return type;
+        }
+        function skippedGenericFunction(node, checkMode) {
+            if (checkMode & 2) {
+                var context = getInferenceContext(node);
+                context.flags |= 4;
+            }
+        }
+        function hasInferenceCandidates(info) {
+            return !!(info.candidates || info.contraCandidates);
+        }
+        function hasOverlappingInferences(a, b) {
+            for (var i = 0; i < a.length; i++) {
+                if (hasInferenceCandidates(a[i]) && hasInferenceCandidates(b[i])) {
+                    return true;
+                }
+            }
+            return false;
+        }
+        function mergeInferences(target, source) {
+            for (var i = 0; i < target.length; i++) {
+                if (!hasInferenceCandidates(target[i]) && hasInferenceCandidates(source[i])) {
+                    target[i] = source[i];
+                }
+            }
+        }
+        function getUniqueTypeParameters(context, typeParameters) {
+            var result = [];
+            var oldTypeParameters;
+            var newTypeParameters;
+            for (var _i = 0, typeParameters_2 = typeParameters; _i < typeParameters_2.length; _i++) {
+                var tp = typeParameters_2[_i];
+                var name = tp.symbol.escapedName;
+                if (hasTypeParameterByName(context.inferredTypeParameters, name) || hasTypeParameterByName(result, name)) {
+                    var newName = getUniqueTypeParameterName(ts.concatenate(context.inferredTypeParameters, result), name);
+                    var symbol = createSymbol(262144, newName);
+                    var newTypeParameter = createTypeParameter(symbol);
+                    newTypeParameter.target = tp;
+                    oldTypeParameters = ts.append(oldTypeParameters, tp);
+                    newTypeParameters = ts.append(newTypeParameters, newTypeParameter);
+                    result.push(newTypeParameter);
+                }
+                else {
+                    result.push(tp);
+                }
+            }
+            if (newTypeParameters) {
+                var mapper = createTypeMapper(oldTypeParameters, newTypeParameters);
+                for (var _a = 0, newTypeParameters_1 = newTypeParameters; _a < newTypeParameters_1.length; _a++) {
+                    var tp = newTypeParameters_1[_a];
+                    tp.mapper = mapper;
+                }
+            }
+            return result;
+        }
+        function hasTypeParameterByName(typeParameters, name) {
+            return ts.some(typeParameters, function (tp) { return tp.symbol.escapedName === name; });
+        }
+        function getUniqueTypeParameterName(typeParameters, baseName) {
+            var len = baseName.length;
+            while (len > 1 && baseName.charCodeAt(len - 1) >= 48 && baseName.charCodeAt(len - 1) <= 57)
+                len--;
+            var s = baseName.slice(0, len);
+            for (var index = 1; true; index++) {
+                var augmentedName = (s + index);
+                if (!hasTypeParameterByName(typeParameters, augmentedName)) {
+                    return augmentedName;
+                }
+            }
+        }
+        function getReturnTypeOfSingleNonGenericCallSignature(funcType) {
+            var signature = getSingleCallSignature(funcType);
+            if (signature && !signature.typeParameters) {
+                return getReturnTypeOfSignature(signature);
+            }
+        }
+        function getReturnTypeOfSingleNonGenericSignatureOfCallChain(expr) {
+            var funcType = checkExpression(expr.expression);
+            var nonOptionalType = getOptionalExpressionType(funcType, expr.expression);
+            var returnType = getReturnTypeOfSingleNonGenericCallSignature(funcType);
+            return returnType && propagateOptionalTypeMarker(returnType, expr, nonOptionalType !== funcType);
+        }
+        function getTypeOfExpression(node) {
+            var quickType = getQuickTypeOfExpression(node);
+            if (quickType) {
+                return quickType;
+            }
+            if (node.flags & 67108864 && flowTypeCache) {
+                var cachedType = flowTypeCache[getNodeId(node)];
+                if (cachedType) {
+                    return cachedType;
+                }
+            }
+            var startInvocationCount = flowInvocationCount;
+            var type = checkExpression(node);
+            if (flowInvocationCount !== startInvocationCount) {
+                var cache = flowTypeCache || (flowTypeCache = []);
+                cache[getNodeId(node)] = type;
+                node.flags |= 67108864;
+            }
+            return type;
+        }
+        function getQuickTypeOfExpression(node) {
+            var expr = ts.skipParentheses(node);
+            if (ts.isCallExpression(expr) && expr.expression.kind !== 102 && !ts.isRequireCall(expr, true) && !isSymbolOrSymbolForCall(expr)) {
+                var type = ts.isCallChain(expr) ? getReturnTypeOfSingleNonGenericSignatureOfCallChain(expr) :
+                    getReturnTypeOfSingleNonGenericCallSignature(checkNonNullExpression(expr.expression));
+                if (type) {
+                    return type;
+                }
+            }
+            else if (ts.isAssertionExpression(expr) && !ts.isConstTypeReference(expr.type)) {
+                return getTypeFromTypeNode(expr.type);
+            }
+            else if (node.kind === 8 || node.kind === 10 ||
+                node.kind === 106 || node.kind === 91) {
+                return checkExpression(node);
+            }
+            return undefined;
+        }
+        function getContextFreeTypeOfExpression(node) {
+            var links = getNodeLinks(node);
+            if (links.contextFreeType) {
+                return links.contextFreeType;
+            }
+            var saveContextualType = node.contextualType;
+            node.contextualType = anyType;
+            try {
+                var type = links.contextFreeType = checkExpression(node, 4);
+                return type;
+            }
+            finally {
+                node.contextualType = saveContextualType;
+            }
+        }
+        function checkExpression(node, checkMode, forceTuple) {
+            var saveCurrentNode = currentNode;
+            currentNode = node;
+            instantiationCount = 0;
+            var uninstantiatedType = checkExpressionWorker(node, checkMode, forceTuple);
+            var type = instantiateTypeWithSingleGenericCallSignature(node, uninstantiatedType, checkMode);
+            if (isConstEnumObjectType(type)) {
+                checkConstEnumAccess(node, type);
+            }
+            currentNode = saveCurrentNode;
+            return type;
+        }
+        function checkConstEnumAccess(node, type) {
+            var ok = (node.parent.kind === 194 && node.parent.expression === node) ||
+                (node.parent.kind === 195 && node.parent.expression === node) ||
+                ((node.kind === 75 || node.kind === 153) && isInRightSideOfImportOrExportAssignment(node) ||
+                    (node.parent.kind === 172 && node.parent.exprName === node)) ||
+                (node.parent.kind === 263);
+            if (!ok) {
+                error(node, ts.Diagnostics.const_enums_can_only_be_used_in_property_or_index_access_expressions_or_the_right_hand_side_of_an_import_declaration_or_export_assignment_or_type_query);
+            }
+            if (compilerOptions.isolatedModules) {
+                ts.Debug.assert(!!(type.symbol.flags & 128));
+                var constEnumDeclaration = type.symbol.valueDeclaration;
+                if (constEnumDeclaration.flags & 8388608) {
+                    error(node, ts.Diagnostics.Cannot_access_ambient_const_enums_when_the_isolatedModules_flag_is_provided);
+                }
+            }
+        }
+        function checkParenthesizedExpression(node, checkMode) {
+            var tag = ts.isInJSFile(node) ? ts.getJSDocTypeTag(node) : undefined;
+            if (tag) {
+                return checkAssertionWorker(tag, tag.typeExpression.type, node.expression, checkMode);
+            }
+            return checkExpression(node.expression, checkMode);
+        }
+        function checkExpressionWorker(node, checkMode, forceTuple) {
+            var kind = node.kind;
+            if (cancellationToken) {
+                switch (kind) {
+                    case 214:
+                    case 201:
+                    case 202:
+                        cancellationToken.throwIfCancellationRequested();
+                }
+            }
+            switch (kind) {
+                case 75:
+                    return checkIdentifier(node);
+                case 104:
+                    return checkThisExpression(node);
+                case 102:
+                    return checkSuperExpression(node);
+                case 100:
+                    return nullWideningType;
+                case 14:
+                case 10:
+                    return getFreshTypeOfLiteralType(getLiteralType(node.text));
+                case 8:
+                    checkGrammarNumericLiteral(node);
+                    return getFreshTypeOfLiteralType(getLiteralType(+node.text));
+                case 9:
+                    checkGrammarBigIntLiteral(node);
+                    return getFreshTypeOfLiteralType(getBigIntLiteralType(node));
+                case 106:
+                    return trueType;
+                case 91:
+                    return falseType;
+                case 211:
+                    return checkTemplateExpression(node);
+                case 13:
+                    return globalRegExpType;
+                case 192:
+                    return checkArrayLiteral(node, checkMode, forceTuple);
+                case 193:
+                    return checkObjectLiteral(node, checkMode);
+                case 194:
+                    return checkPropertyAccessExpression(node);
+                case 153:
+                    return checkQualifiedName(node);
+                case 195:
+                    return checkIndexedAccess(node);
+                case 196:
+                    if (node.expression.kind === 96) {
+                        return checkImportCallExpression(node);
+                    }
+                case 197:
+                    return checkCallExpression(node, checkMode);
+                case 198:
+                    return checkTaggedTemplateExpression(node);
+                case 200:
+                    return checkParenthesizedExpression(node, checkMode);
+                case 214:
+                    return checkClassExpression(node);
+                case 201:
+                case 202:
+                    return checkFunctionExpressionOrObjectLiteralMethod(node, checkMode);
+                case 204:
+                    return checkTypeOfExpression(node);
+                case 199:
+                case 217:
+                    return checkAssertion(node);
+                case 218:
+                    return checkNonNullAssertion(node);
+                case 219:
+                    return checkMetaProperty(node);
+                case 203:
+                    return checkDeleteExpression(node);
+                case 205:
+                    return checkVoidExpression(node);
+                case 206:
+                    return checkAwaitExpression(node);
+                case 207:
+                    return checkPrefixUnaryExpression(node);
+                case 208:
+                    return checkPostfixUnaryExpression(node);
+                case 209:
+                    return checkBinaryExpression(node, checkMode);
+                case 210:
+                    return checkConditionalExpression(node, checkMode);
+                case 213:
+                    return checkSpreadExpression(node, checkMode);
+                case 215:
+                    return undefinedWideningType;
+                case 212:
+                    return checkYieldExpression(node);
+                case 220:
+                    return node.type;
+                case 276:
+                    return checkJsxExpression(node, checkMode);
+                case 266:
+                    return checkJsxElement(node, checkMode);
+                case 267:
+                    return checkJsxSelfClosingElement(node, checkMode);
+                case 270:
+                    return checkJsxFragment(node);
+                case 274:
+                    return checkJsxAttributes(node, checkMode);
+                case 268:
+                    ts.Debug.fail("Shouldn't ever directly check a JsxOpeningElement");
+            }
+            return errorType;
+        }
+        function checkTypeParameter(node) {
+            if (node.expression) {
+                grammarErrorOnFirstToken(node.expression, ts.Diagnostics.Type_expected);
+            }
+            checkSourceElement(node.constraint);
+            checkSourceElement(node.default);
+            var typeParameter = getDeclaredTypeOfTypeParameter(getSymbolOfNode(node));
+            getBaseConstraintOfType(typeParameter);
+            if (!hasNonCircularTypeParameterDefault(typeParameter)) {
+                error(node.default, ts.Diagnostics.Type_parameter_0_has_a_circular_default, typeToString(typeParameter));
+            }
+            var constraintType = getConstraintOfTypeParameter(typeParameter);
+            var defaultType = getDefaultFromTypeParameter(typeParameter);
+            if (constraintType && defaultType) {
+                checkTypeAssignableTo(defaultType, getTypeWithThisArgument(instantiateType(constraintType, makeUnaryTypeMapper(typeParameter, defaultType)), defaultType), node.default, ts.Diagnostics.Type_0_does_not_satisfy_the_constraint_1);
+            }
+            if (produceDiagnostics) {
+                checkTypeNameIsReserved(node.name, ts.Diagnostics.Type_parameter_name_cannot_be_0);
+            }
+        }
+        function checkParameter(node) {
+            checkGrammarDecoratorsAndModifiers(node);
+            checkVariableLikeDeclaration(node);
+            var func = ts.getContainingFunction(node);
+            if (ts.hasModifier(node, 92)) {
+                if (!(func.kind === 162 && ts.nodeIsPresent(func.body))) {
+                    error(node, ts.Diagnostics.A_parameter_property_is_only_allowed_in_a_constructor_implementation);
+                }
+                if (func.kind === 162 && ts.isIdentifier(node.name) && node.name.escapedText === "constructor") {
+                    error(node.name, ts.Diagnostics.constructor_cannot_be_used_as_a_parameter_property_name);
+                }
+            }
+            if (node.questionToken && ts.isBindingPattern(node.name) && func.body) {
+                error(node, ts.Diagnostics.A_binding_pattern_parameter_cannot_be_optional_in_an_implementation_signature);
+            }
+            if (node.name && ts.isIdentifier(node.name) && (node.name.escapedText === "this" || node.name.escapedText === "new")) {
+                if (func.parameters.indexOf(node) !== 0) {
+                    error(node, ts.Diagnostics.A_0_parameter_must_be_the_first_parameter, node.name.escapedText);
+                }
+                if (func.kind === 162 || func.kind === 166 || func.kind === 171) {
+                    error(node, ts.Diagnostics.A_constructor_cannot_have_a_this_parameter);
+                }
+                if (func.kind === 202) {
+                    error(node, ts.Diagnostics.An_arrow_function_cannot_have_a_this_parameter);
+                }
+                if (func.kind === 163 || func.kind === 164) {
+                    error(node, ts.Diagnostics.get_and_set_accessors_cannot_declare_this_parameters);
+                }
+            }
+            if (node.dotDotDotToken && !ts.isBindingPattern(node.name) && !isTypeAssignableTo(getReducedType(getTypeOfSymbol(node.symbol)), anyReadonlyArrayType)) {
+                error(node, ts.Diagnostics.A_rest_parameter_must_be_of_an_array_type);
+            }
+        }
+        function checkTypePredicate(node) {
+            var parent = getTypePredicateParent(node);
+            if (!parent) {
+                error(node, ts.Diagnostics.A_type_predicate_is_only_allowed_in_return_type_position_for_functions_and_methods);
+                return;
+            }
+            var signature = getSignatureFromDeclaration(parent);
+            var typePredicate = getTypePredicateOfSignature(signature);
+            if (!typePredicate) {
+                return;
+            }
+            checkSourceElement(node.type);
+            var parameterName = node.parameterName;
+            if (typePredicate.kind === 0 || typePredicate.kind === 2) {
+                getTypeFromThisTypeNode(parameterName);
+            }
+            else {
+                if (typePredicate.parameterIndex >= 0) {
+                    if (signatureHasRestParameter(signature) && typePredicate.parameterIndex === signature.parameters.length - 1) {
+                        error(parameterName, ts.Diagnostics.A_type_predicate_cannot_reference_a_rest_parameter);
+                    }
+                    else {
+                        if (typePredicate.type) {
+                            var leadingError = function () { return ts.chainDiagnosticMessages(undefined, ts.Diagnostics.A_type_predicate_s_type_must_be_assignable_to_its_parameter_s_type); };
+                            checkTypeAssignableTo(typePredicate.type, getTypeOfSymbol(signature.parameters[typePredicate.parameterIndex]), node.type, undefined, leadingError);
+                        }
+                    }
+                }
+                else if (parameterName) {
+                    var hasReportedError = false;
+                    for (var _i = 0, _a = parent.parameters; _i < _a.length; _i++) {
+                        var name = _a[_i].name;
+                        if (ts.isBindingPattern(name) &&
+                            checkIfTypePredicateVariableIsDeclaredInBindingPattern(name, parameterName, typePredicate.parameterName)) {
+                            hasReportedError = true;
+                            break;
+                        }
+                    }
+                    if (!hasReportedError) {
+                        error(node.parameterName, ts.Diagnostics.Cannot_find_parameter_0, typePredicate.parameterName);
+                    }
+                }
+            }
+        }
+        function getTypePredicateParent(node) {
+            switch (node.parent.kind) {
+                case 202:
+                case 165:
+                case 244:
+                case 201:
+                case 170:
+                case 161:
+                case 160:
+                    var parent = node.parent;
+                    if (node === parent.type) {
+                        return parent;
+                    }
+            }
+        }
+        function checkIfTypePredicateVariableIsDeclaredInBindingPattern(pattern, predicateVariableNode, predicateVariableName) {
+            for (var _i = 0, _a = pattern.elements; _i < _a.length; _i++) {
+                var element = _a[_i];
+                if (ts.isOmittedExpression(element)) {
+                    continue;
+                }
+                var name = element.name;
+                if (name.kind === 75 && name.escapedText === predicateVariableName) {
+                    error(predicateVariableNode, ts.Diagnostics.A_type_predicate_cannot_reference_element_0_in_a_binding_pattern, predicateVariableName);
+                    return true;
+                }
+                else if (name.kind === 190 || name.kind === 189) {
+                    if (checkIfTypePredicateVariableIsDeclaredInBindingPattern(name, predicateVariableNode, predicateVariableName)) {
+                        return true;
+                    }
+                }
+            }
+        }
+        function checkSignatureDeclaration(node) {
+            if (node.kind === 167) {
+                checkGrammarIndexSignature(node);
+            }
+            else if (node.kind === 170 || node.kind === 244 || node.kind === 171 ||
+                node.kind === 165 || node.kind === 162 ||
+                node.kind === 166) {
+                checkGrammarFunctionLikeDeclaration(node);
+            }
+            var functionFlags = ts.getFunctionFlags(node);
+            if (!(functionFlags & 4)) {
+                if ((functionFlags & 3) === 3 && languageVersion < 99) {
+                    checkExternalEmitHelpers(node, 12288);
+                }
+                if ((functionFlags & 3) === 2 && languageVersion < 4) {
+                    checkExternalEmitHelpers(node, 64);
+                }
+                if ((functionFlags & 3) !== 0 && languageVersion < 2) {
+                    checkExternalEmitHelpers(node, 128);
+                }
+            }
+            checkTypeParameters(node.typeParameters);
+            ts.forEach(node.parameters, checkParameter);
+            if (node.type) {
+                checkSourceElement(node.type);
+            }
+            if (produceDiagnostics) {
+                checkCollisionWithArgumentsInGeneratedCode(node);
+                var returnTypeNode = ts.getEffectiveReturnTypeNode(node);
+                if (noImplicitAny && !returnTypeNode) {
+                    switch (node.kind) {
+                        case 166:
+                            error(node, ts.Diagnostics.Construct_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type);
+                            break;
+                        case 165:
+                            error(node, ts.Diagnostics.Call_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type);
+                            break;
+                    }
+                }
+                if (returnTypeNode) {
+                    var functionFlags_1 = ts.getFunctionFlags(node);
+                    if ((functionFlags_1 & (4 | 1)) === 1) {
+                        var returnType = getTypeFromTypeNode(returnTypeNode);
+                        if (returnType === voidType) {
+                            error(returnTypeNode, ts.Diagnostics.A_generator_cannot_have_a_void_type_annotation);
+                        }
+                        else {
+                            var generatorYieldType = getIterationTypeOfGeneratorFunctionReturnType(0, returnType, (functionFlags_1 & 2) !== 0) || anyType;
+                            var generatorReturnType = getIterationTypeOfGeneratorFunctionReturnType(1, returnType, (functionFlags_1 & 2) !== 0) || generatorYieldType;
+                            var generatorNextType = getIterationTypeOfGeneratorFunctionReturnType(2, returnType, (functionFlags_1 & 2) !== 0) || unknownType;
+                            var generatorInstantiation = createGeneratorReturnType(generatorYieldType, generatorReturnType, generatorNextType, !!(functionFlags_1 & 2));
+                            checkTypeAssignableTo(generatorInstantiation, returnType, returnTypeNode);
+                        }
+                    }
+                    else if ((functionFlags_1 & 3) === 2) {
+                        checkAsyncFunctionReturnType(node, returnTypeNode);
+                    }
+                }
+                if (node.kind !== 167 && node.kind !== 300) {
+                    registerForUnusedIdentifiersCheck(node);
+                }
+            }
+        }
+        function checkClassForDuplicateDeclarations(node) {
+            var instanceNames = ts.createUnderscoreEscapedMap();
+            var staticNames = ts.createUnderscoreEscapedMap();
+            var privateIdentifiers = ts.createUnderscoreEscapedMap();
+            for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
+                var member = _a[_i];
+                if (member.kind === 162) {
+                    for (var _b = 0, _c = member.parameters; _b < _c.length; _b++) {
+                        var param = _c[_b];
+                        if (ts.isParameterPropertyDeclaration(param, member) && !ts.isBindingPattern(param.name)) {
+                            addName(instanceNames, param.name, param.name.escapedText, 3);
+                        }
+                    }
+                }
+                else {
+                    var isStatic = ts.hasModifier(member, 32);
+                    var name = member.name;
+                    if (!name) {
+                        return;
+                    }
+                    var names = ts.isPrivateIdentifier(name) ? privateIdentifiers :
+                        isStatic ? staticNames :
+                            instanceNames;
+                    var memberName = name && ts.getPropertyNameForPropertyNameNode(name);
+                    if (memberName) {
+                        switch (member.kind) {
+                            case 163:
+                                addName(names, name, memberName, 1);
+                                break;
+                            case 164:
+                                addName(names, name, memberName, 2);
+                                break;
+                            case 159:
+                                addName(names, name, memberName, 3);
+                                break;
+                            case 161:
+                                addName(names, name, memberName, 8);
+                                break;
+                        }
+                    }
+                }
+            }
+            function addName(names, location, name, meaning) {
+                var prev = names.get(name);
+                if (prev) {
+                    if (prev & 8) {
+                        if (meaning !== 8) {
+                            error(location, ts.Diagnostics.Duplicate_identifier_0, ts.getTextOfNode(location));
+                        }
+                    }
+                    else if (prev & meaning) {
+                        error(location, ts.Diagnostics.Duplicate_identifier_0, ts.getTextOfNode(location));
+                    }
+                    else {
+                        names.set(name, prev | meaning);
+                    }
+                }
+                else {
+                    names.set(name, meaning);
+                }
+            }
+        }
+        function checkClassForStaticPropertyNameConflicts(node) {
+            for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
+                var member = _a[_i];
+                var memberNameNode = member.name;
+                var isStatic = ts.hasModifier(member, 32);
+                if (isStatic && memberNameNode) {
+                    var memberName = ts.getPropertyNameForPropertyNameNode(memberNameNode);
+                    switch (memberName) {
+                        case "name":
+                        case "length":
+                        case "caller":
+                        case "arguments":
+                        case "prototype":
+                            var message = ts.Diagnostics.Static_property_0_conflicts_with_built_in_property_Function_0_of_constructor_function_1;
+                            var className = getNameOfSymbolAsWritten(getSymbolOfNode(node));
+                            error(memberNameNode, message, memberName, className);
+                            break;
+                    }
+                }
+            }
+        }
+        function checkObjectTypeForDuplicateDeclarations(node) {
+            var names = ts.createMap();
+            for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
+                var member = _a[_i];
+                if (member.kind === 158) {
+                    var memberName = void 0;
+                    var name = member.name;
+                    switch (name.kind) {
+                        case 10:
+                        case 8:
+                            memberName = name.text;
+                            break;
+                        case 75:
+                            memberName = ts.idText(name);
+                            break;
+                        default:
+                            continue;
+                    }
+                    if (names.get(memberName)) {
+                        error(ts.getNameOfDeclaration(member.symbol.valueDeclaration), ts.Diagnostics.Duplicate_identifier_0, memberName);
+                        error(member.name, ts.Diagnostics.Duplicate_identifier_0, memberName);
+                    }
+                    else {
+                        names.set(memberName, true);
+                    }
+                }
+            }
+        }
+        function checkTypeForDuplicateIndexSignatures(node) {
+            if (node.kind === 246) {
+                var nodeSymbol = getSymbolOfNode(node);
+                if (nodeSymbol.declarations.length > 0 && nodeSymbol.declarations[0] !== node) {
+                    return;
+                }
+            }
+            var indexSymbol = getIndexSymbol(getSymbolOfNode(node));
+            if (indexSymbol) {
+                var seenNumericIndexer = false;
+                var seenStringIndexer = false;
+                for (var _i = 0, _a = indexSymbol.declarations; _i < _a.length; _i++) {
+                    var decl = _a[_i];
+                    var declaration = decl;
+                    if (declaration.parameters.length === 1 && declaration.parameters[0].type) {
+                        switch (declaration.parameters[0].type.kind) {
+                            case 143:
+                                if (!seenStringIndexer) {
+                                    seenStringIndexer = true;
+                                }
+                                else {
+                                    error(declaration, ts.Diagnostics.Duplicate_string_index_signature);
+                                }
+                                break;
+                            case 140:
+                                if (!seenNumericIndexer) {
+                                    seenNumericIndexer = true;
+                                }
+                                else {
+                                    error(declaration, ts.Diagnostics.Duplicate_number_index_signature);
+                                }
+                                break;
+                        }
+                    }
+                }
+            }
+        }
+        function checkPropertyDeclaration(node) {
+            if (!checkGrammarDecoratorsAndModifiers(node) && !checkGrammarProperty(node))
+                checkGrammarComputedPropertyName(node.name);
+            checkVariableLikeDeclaration(node);
+            if (ts.isPrivateIdentifier(node.name) && languageVersion < 99) {
+                for (var lexicalScope = ts.getEnclosingBlockScopeContainer(node); !!lexicalScope; lexicalScope = ts.getEnclosingBlockScopeContainer(lexicalScope)) {
+                    getNodeLinks(lexicalScope).flags |= 67108864;
+                }
+            }
+        }
+        function checkPropertySignature(node) {
+            if (ts.isPrivateIdentifier(node.name)) {
+                error(node, ts.Diagnostics.Private_identifiers_are_not_allowed_outside_class_bodies);
+            }
+            return checkPropertyDeclaration(node);
+        }
+        function checkMethodDeclaration(node) {
+            if (!checkGrammarMethod(node))
+                checkGrammarComputedPropertyName(node.name);
+            if (ts.isPrivateIdentifier(node.name)) {
+                error(node, ts.Diagnostics.A_method_cannot_be_named_with_a_private_identifier);
+            }
+            checkFunctionOrMethodDeclaration(node);
+            if (ts.hasModifier(node, 128) && node.kind === 161 && node.body) {
+                error(node, ts.Diagnostics.Method_0_cannot_have_an_implementation_because_it_is_marked_abstract, ts.declarationNameToString(node.name));
+            }
+        }
+        function checkConstructorDeclaration(node) {
+            checkSignatureDeclaration(node);
+            if (!checkGrammarConstructorTypeParameters(node))
+                checkGrammarConstructorTypeAnnotation(node);
+            checkSourceElement(node.body);
+            var symbol = getSymbolOfNode(node);
+            var firstDeclaration = ts.getDeclarationOfKind(symbol, node.kind);
+            if (node === firstDeclaration) {
+                checkFunctionOrConstructorSymbol(symbol);
+            }
+            if (ts.nodeIsMissing(node.body)) {
+                return;
+            }
+            if (!produceDiagnostics) {
+                return;
+            }
+            function isInstancePropertyWithInitializerOrPrivateIdentifierProperty(n) {
+                if (ts.isPrivateIdentifierPropertyDeclaration(n)) {
+                    return true;
+                }
+                return n.kind === 159 &&
+                    !ts.hasModifier(n, 32) &&
+                    !!n.initializer;
+            }
+            var containingClassDecl = node.parent;
+            if (ts.getClassExtendsHeritageElement(containingClassDecl)) {
+                captureLexicalThis(node.parent, containingClassDecl);
+                var classExtendsNull = classDeclarationExtendsNull(containingClassDecl);
+                var superCall = getSuperCallInConstructor(node);
+                if (superCall) {
+                    if (classExtendsNull) {
+                        error(superCall, ts.Diagnostics.A_constructor_cannot_contain_a_super_call_when_its_class_extends_null);
+                    }
+                    var superCallShouldBeFirst = (compilerOptions.target !== 99 || !compilerOptions.useDefineForClassFields) &&
+                        (ts.some(node.parent.members, isInstancePropertyWithInitializerOrPrivateIdentifierProperty) ||
+                            ts.some(node.parameters, function (p) { return ts.hasModifier(p, 92); }));
+                    if (superCallShouldBeFirst) {
+                        var statements = node.body.statements;
+                        var superCallStatement = void 0;
+                        for (var _i = 0, statements_3 = statements; _i < statements_3.length; _i++) {
+                            var statement = statements_3[_i];
+                            if (statement.kind === 226 && ts.isSuperCall(statement.expression)) {
+                                superCallStatement = statement;
+                                break;
+                            }
+                            if (!ts.isPrologueDirective(statement)) {
+                                break;
+                            }
+                        }
+                        if (!superCallStatement) {
+                            error(node, ts.Diagnostics.A_super_call_must_be_the_first_statement_in_the_constructor_when_a_class_contains_initialized_properties_parameter_properties_or_private_identifiers);
+                        }
+                    }
+                }
+                else if (!classExtendsNull) {
+                    error(node, ts.Diagnostics.Constructors_for_derived_classes_must_contain_a_super_call);
+                }
+            }
+        }
+        function checkAccessorDeclaration(node) {
+            if (produceDiagnostics) {
+                if (!checkGrammarFunctionLikeDeclaration(node) && !checkGrammarAccessor(node))
+                    checkGrammarComputedPropertyName(node.name);
+                checkDecorators(node);
+                checkSignatureDeclaration(node);
+                if (node.kind === 163) {
+                    if (!(node.flags & 8388608) && ts.nodeIsPresent(node.body) && (node.flags & 256)) {
+                        if (!(node.flags & 512)) {
+                            error(node.name, ts.Diagnostics.A_get_accessor_must_return_a_value);
+                        }
+                    }
+                }
+                if (node.name.kind === 154) {
+                    checkComputedPropertyName(node.name);
+                }
+                if (ts.isPrivateIdentifier(node.name)) {
+                    error(node.name, ts.Diagnostics.An_accessor_cannot_be_named_with_a_private_identifier);
+                }
+                if (!hasNonBindableDynamicName(node)) {
+                    var otherKind = node.kind === 163 ? 164 : 163;
+                    var otherAccessor = ts.getDeclarationOfKind(getSymbolOfNode(node), otherKind);
+                    if (otherAccessor) {
+                        var nodeFlags = ts.getModifierFlags(node);
+                        var otherFlags = ts.getModifierFlags(otherAccessor);
+                        if ((nodeFlags & 28) !== (otherFlags & 28)) {
+                            error(node.name, ts.Diagnostics.Getter_and_setter_accessors_do_not_agree_in_visibility);
+                        }
+                        if ((nodeFlags & 128) !== (otherFlags & 128)) {
+                            error(node.name, ts.Diagnostics.Accessors_must_both_be_abstract_or_non_abstract);
+                        }
+                        checkAccessorDeclarationTypesIdentical(node, otherAccessor, getAnnotatedAccessorType, ts.Diagnostics.get_and_set_accessor_must_have_the_same_type);
+                        checkAccessorDeclarationTypesIdentical(node, otherAccessor, getThisTypeOfDeclaration, ts.Diagnostics.get_and_set_accessor_must_have_the_same_this_type);
+                    }
+                }
+                var returnType = getTypeOfAccessors(getSymbolOfNode(node));
+                if (node.kind === 163) {
+                    checkAllCodePathsInNonVoidFunctionReturnOrThrow(node, returnType);
+                }
+            }
+            checkSourceElement(node.body);
+        }
+        function checkAccessorDeclarationTypesIdentical(first, second, getAnnotatedType, message) {
+            var firstType = getAnnotatedType(first);
+            var secondType = getAnnotatedType(second);
+            if (firstType && secondType && !isTypeIdenticalTo(firstType, secondType)) {
+                error(first, message);
+            }
+        }
+        function checkMissingDeclaration(node) {
+            checkDecorators(node);
+        }
+        function getEffectiveTypeArguments(node, typeParameters) {
+            return fillMissingTypeArguments(ts.map(node.typeArguments, getTypeFromTypeNode), typeParameters, getMinTypeArgumentCount(typeParameters), ts.isInJSFile(node));
+        }
+        function checkTypeArgumentConstraints(node, typeParameters) {
+            var typeArguments;
+            var mapper;
+            var result = true;
+            for (var i = 0; i < typeParameters.length; i++) {
+                var constraint = getConstraintOfTypeParameter(typeParameters[i]);
+                if (constraint) {
+                    if (!typeArguments) {
+                        typeArguments = getEffectiveTypeArguments(node, typeParameters);
+                        mapper = createTypeMapper(typeParameters, typeArguments);
+                    }
+                    result = result && checkTypeAssignableTo(typeArguments[i], instantiateType(constraint, mapper), node.typeArguments[i], ts.Diagnostics.Type_0_does_not_satisfy_the_constraint_1);
+                }
+            }
+            return result;
+        }
+        function getTypeParametersForTypeReference(node) {
+            var type = getTypeFromTypeReference(node);
+            if (type !== errorType) {
+                var symbol = getNodeLinks(node).resolvedSymbol;
+                if (symbol) {
+                    return symbol.flags & 524288 && getSymbolLinks(symbol).typeParameters ||
+                        (ts.getObjectFlags(type) & 4 ? type.target.localTypeParameters : undefined);
+                }
+            }
+            return undefined;
+        }
+        function checkTypeReferenceNode(node) {
+            checkGrammarTypeArguments(node, node.typeArguments);
+            if (node.kind === 169 && node.typeName.jsdocDotPos !== undefined && !ts.isInJSFile(node) && !ts.isInJSDoc(node)) {
+                grammarErrorAtPos(node, node.typeName.jsdocDotPos, 1, ts.Diagnostics.JSDoc_types_can_only_be_used_inside_documentation_comments);
+            }
+            ts.forEach(node.typeArguments, checkSourceElement);
+            var type = getTypeFromTypeReference(node);
+            if (type !== errorType) {
+                if (node.typeArguments && produceDiagnostics) {
+                    var typeParameters = getTypeParametersForTypeReference(node);
+                    if (typeParameters) {
+                        checkTypeArgumentConstraints(node, typeParameters);
+                    }
+                }
+                if (type.flags & 32 && getNodeLinks(node).resolvedSymbol.flags & 8) {
+                    error(node, ts.Diagnostics.Enum_type_0_has_members_with_initializers_that_are_not_literals, typeToString(type));
+                }
+            }
+        }
+        function getTypeArgumentConstraint(node) {
+            var typeReferenceNode = ts.tryCast(node.parent, ts.isTypeReferenceType);
+            if (!typeReferenceNode)
+                return undefined;
+            var typeParameters = getTypeParametersForTypeReference(typeReferenceNode);
+            var constraint = getConstraintOfTypeParameter(typeParameters[typeReferenceNode.typeArguments.indexOf(node)]);
+            return constraint && instantiateType(constraint, createTypeMapper(typeParameters, getEffectiveTypeArguments(typeReferenceNode, typeParameters)));
+        }
+        function checkTypeQuery(node) {
+            getTypeFromTypeQueryNode(node);
+        }
+        function checkTypeLiteral(node) {
+            ts.forEach(node.members, checkSourceElement);
+            if (produceDiagnostics) {
+                var type = getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node);
+                checkIndexConstraints(type);
+                checkTypeForDuplicateIndexSignatures(node);
+                checkObjectTypeForDuplicateDeclarations(node);
+            }
+        }
+        function checkArrayType(node) {
+            checkSourceElement(node.elementType);
+        }
+        function checkTupleType(node) {
+            var elementTypes = node.elementTypes;
+            var seenOptionalElement = false;
+            for (var i = 0; i < elementTypes.length; i++) {
+                var e = elementTypes[i];
+                if (e.kind === 177) {
+                    if (i !== elementTypes.length - 1) {
+                        grammarErrorOnNode(e, ts.Diagnostics.A_rest_element_must_be_last_in_a_tuple_type);
+                        break;
+                    }
+                    if (!isArrayType(getTypeFromTypeNode(e.type))) {
+                        error(e, ts.Diagnostics.A_rest_element_type_must_be_an_array_type);
+                    }
+                }
+                else if (e.kind === 176) {
+                    seenOptionalElement = true;
+                }
+                else if (seenOptionalElement) {
+                    grammarErrorOnNode(e, ts.Diagnostics.A_required_element_cannot_follow_an_optional_element);
+                    break;
+                }
+            }
+            ts.forEach(node.elementTypes, checkSourceElement);
+        }
+        function checkUnionOrIntersectionType(node) {
+            ts.forEach(node.types, checkSourceElement);
+        }
+        function checkIndexedAccessIndexType(type, accessNode) {
+            if (!(type.flags & 8388608)) {
+                return type;
+            }
+            var objectType = type.objectType;
+            var indexType = type.indexType;
+            if (isTypeAssignableTo(indexType, getIndexType(objectType, false))) {
+                if (accessNode.kind === 195 && ts.isAssignmentTarget(accessNode) &&
+                    ts.getObjectFlags(objectType) & 32 && getMappedTypeModifiers(objectType) & 1) {
+                    error(accessNode, ts.Diagnostics.Index_signature_in_type_0_only_permits_reading, typeToString(objectType));
+                }
+                return type;
+            }
+            var apparentObjectType = getApparentType(objectType);
+            if (getIndexInfoOfType(apparentObjectType, 1) && isTypeAssignableToKind(indexType, 296)) {
+                return type;
+            }
+            if (isGenericObjectType(objectType)) {
+                var propertyName_1 = getPropertyNameFromIndex(indexType, accessNode);
+                if (propertyName_1) {
+                    var propertySymbol = forEachType(apparentObjectType, function (t) { return getPropertyOfType(t, propertyName_1); });
+                    if (propertySymbol && ts.getDeclarationModifierFlagsFromSymbol(propertySymbol) & 24) {
+                        error(accessNode, ts.Diagnostics.Private_or_protected_member_0_cannot_be_accessed_on_a_type_parameter, ts.unescapeLeadingUnderscores(propertyName_1));
+                        return errorType;
+                    }
+                }
+            }
+            error(accessNode, ts.Diagnostics.Type_0_cannot_be_used_to_index_type_1, typeToString(indexType), typeToString(objectType));
+            return errorType;
+        }
+        function checkIndexedAccessType(node) {
+            checkSourceElement(node.objectType);
+            checkSourceElement(node.indexType);
+            checkIndexedAccessIndexType(getTypeFromIndexedAccessTypeNode(node), node);
+        }
+        function checkMappedType(node) {
+            checkSourceElement(node.typeParameter);
+            checkSourceElement(node.type);
+            if (!node.type) {
+                reportImplicitAny(node, anyType);
+            }
+            var type = getTypeFromMappedTypeNode(node);
+            var constraintType = getConstraintTypeFromMappedType(type);
+            checkTypeAssignableTo(constraintType, keyofConstraintType, ts.getEffectiveConstraintOfTypeParameter(node.typeParameter));
+        }
+        function checkThisType(node) {
+            getTypeFromThisTypeNode(node);
+        }
+        function checkTypeOperator(node) {
+            checkGrammarTypeOperatorNode(node);
+            checkSourceElement(node.type);
+        }
+        function checkConditionalType(node) {
+            ts.forEachChild(node, checkSourceElement);
+        }
+        function checkInferType(node) {
+            if (!ts.findAncestor(node, function (n) { return n.parent && n.parent.kind === 180 && n.parent.extendsType === n; })) {
+                grammarErrorOnNode(node, ts.Diagnostics.infer_declarations_are_only_permitted_in_the_extends_clause_of_a_conditional_type);
+            }
+            checkSourceElement(node.typeParameter);
+            registerForUnusedIdentifiersCheck(node);
+        }
+        function checkImportType(node) {
+            checkSourceElement(node.argument);
+            getTypeFromTypeNode(node);
+        }
+        function isPrivateWithinAmbient(node) {
+            return (ts.hasModifier(node, 8) || ts.isPrivateIdentifierPropertyDeclaration(node)) && !!(node.flags & 8388608);
+        }
+        function getEffectiveDeclarationFlags(n, flagsToCheck) {
+            var flags = ts.getCombinedModifierFlags(n);
+            if (n.parent.kind !== 246 &&
+                n.parent.kind !== 245 &&
+                n.parent.kind !== 214 &&
+                n.flags & 8388608) {
+                if (!(flags & 2) && !(ts.isModuleBlock(n.parent) && ts.isModuleDeclaration(n.parent.parent) && ts.isGlobalScopeAugmentation(n.parent.parent))) {
+                    flags |= 1;
+                }
+                flags |= 2;
+            }
+            return flags & flagsToCheck;
+        }
+        function checkFunctionOrConstructorSymbol(symbol) {
+            if (!produceDiagnostics) {
+                return;
+            }
+            function getCanonicalOverload(overloads, implementation) {
+                var implementationSharesContainerWithFirstOverload = implementation !== undefined && implementation.parent === overloads[0].parent;
+                return implementationSharesContainerWithFirstOverload ? implementation : overloads[0];
+            }
+            function checkFlagAgreementBetweenOverloads(overloads, implementation, flagsToCheck, someOverloadFlags, allOverloadFlags) {
+                var someButNotAllOverloadFlags = someOverloadFlags ^ allOverloadFlags;
+                if (someButNotAllOverloadFlags !== 0) {
+                    var canonicalFlags_1 = getEffectiveDeclarationFlags(getCanonicalOverload(overloads, implementation), flagsToCheck);
+                    ts.forEach(overloads, function (o) {
+                        var deviation = getEffectiveDeclarationFlags(o, flagsToCheck) ^ canonicalFlags_1;
+                        if (deviation & 1) {
+                            error(ts.getNameOfDeclaration(o), ts.Diagnostics.Overload_signatures_must_all_be_exported_or_non_exported);
+                        }
+                        else if (deviation & 2) {
+                            error(ts.getNameOfDeclaration(o), ts.Diagnostics.Overload_signatures_must_all_be_ambient_or_non_ambient);
+                        }
+                        else if (deviation & (8 | 16)) {
+                            error(ts.getNameOfDeclaration(o) || o, ts.Diagnostics.Overload_signatures_must_all_be_public_private_or_protected);
+                        }
+                        else if (deviation & 128) {
+                            error(ts.getNameOfDeclaration(o), ts.Diagnostics.Overload_signatures_must_all_be_abstract_or_non_abstract);
+                        }
+                    });
+                }
+            }
+            function checkQuestionTokenAgreementBetweenOverloads(overloads, implementation, someHaveQuestionToken, allHaveQuestionToken) {
+                if (someHaveQuestionToken !== allHaveQuestionToken) {
+                    var canonicalHasQuestionToken_1 = ts.hasQuestionToken(getCanonicalOverload(overloads, implementation));
+                    ts.forEach(overloads, function (o) {
+                        var deviation = ts.hasQuestionToken(o) !== canonicalHasQuestionToken_1;
+                        if (deviation) {
+                            error(ts.getNameOfDeclaration(o), ts.Diagnostics.Overload_signatures_must_all_be_optional_or_required);
+                        }
+                    });
+                }
+            }
+            var flagsToCheck = 1 | 2 | 8 | 16 | 128;
+            var someNodeFlags = 0;
+            var allNodeFlags = flagsToCheck;
+            var someHaveQuestionToken = false;
+            var allHaveQuestionToken = true;
+            var hasOverloads = false;
+            var bodyDeclaration;
+            var lastSeenNonAmbientDeclaration;
+            var previousDeclaration;
+            var declarations = symbol.declarations;
+            var isConstructor = (symbol.flags & 16384) !== 0;
+            function reportImplementationExpectedError(node) {
+                if (node.name && ts.nodeIsMissing(node.name)) {
+                    return;
+                }
+                var seen = false;
+                var subsequentNode = ts.forEachChild(node.parent, function (c) {
+                    if (seen) {
+                        return c;
+                    }
+                    else {
+                        seen = c === node;
+                    }
+                });
+                if (subsequentNode && subsequentNode.pos === node.end) {
+                    if (subsequentNode.kind === node.kind) {
+                        var errorNode_1 = subsequentNode.name || subsequentNode;
+                        var subsequentName = subsequentNode.name;
+                        if (node.name && subsequentName && (ts.isPrivateIdentifier(node.name) && ts.isPrivateIdentifier(subsequentName) && node.name.escapedText === subsequentName.escapedText ||
+                            ts.isComputedPropertyName(node.name) && ts.isComputedPropertyName(subsequentName) ||
+                            ts.isPropertyNameLiteral(node.name) && ts.isPropertyNameLiteral(subsequentName) &&
+                                ts.getEscapedTextOfIdentifierOrLiteral(node.name) === ts.getEscapedTextOfIdentifierOrLiteral(subsequentName))) {
+                            var reportError = (node.kind === 161 || node.kind === 160) &&
+                                ts.hasModifier(node, 32) !== ts.hasModifier(subsequentNode, 32);
+                            if (reportError) {
+                                var diagnostic = ts.hasModifier(node, 32) ? ts.Diagnostics.Function_overload_must_be_static : ts.Diagnostics.Function_overload_must_not_be_static;
+                                error(errorNode_1, diagnostic);
+                            }
+                            return;
+                        }
+                        if (ts.nodeIsPresent(subsequentNode.body)) {
+                            error(errorNode_1, ts.Diagnostics.Function_implementation_name_must_be_0, ts.declarationNameToString(node.name));
+                            return;
+                        }
+                    }
+                }
+                var errorNode = node.name || node;
+                if (isConstructor) {
+                    error(errorNode, ts.Diagnostics.Constructor_implementation_is_missing);
+                }
+                else {
+                    if (ts.hasModifier(node, 128)) {
+                        error(errorNode, ts.Diagnostics.All_declarations_of_an_abstract_method_must_be_consecutive);
+                    }
+                    else {
+                        error(errorNode, ts.Diagnostics.Function_implementation_is_missing_or_not_immediately_following_the_declaration);
+                    }
+                }
+            }
+            var duplicateFunctionDeclaration = false;
+            var multipleConstructorImplementation = false;
+            var hasNonAmbientClass = false;
+            for (var _i = 0, declarations_4 = declarations; _i < declarations_4.length; _i++) {
+                var current = declarations_4[_i];
+                var node = current;
+                var inAmbientContext = node.flags & 8388608;
+                var inAmbientContextOrInterface = node.parent.kind === 246 || node.parent.kind === 173 || inAmbientContext;
+                if (inAmbientContextOrInterface) {
+                    previousDeclaration = undefined;
+                }
+                if ((node.kind === 245 || node.kind === 214) && !inAmbientContext) {
+                    hasNonAmbientClass = true;
+                }
+                if (node.kind === 244 || node.kind === 161 || node.kind === 160 || node.kind === 162) {
+                    var currentNodeFlags = getEffectiveDeclarationFlags(node, flagsToCheck);
+                    someNodeFlags |= currentNodeFlags;
+                    allNodeFlags &= currentNodeFlags;
+                    someHaveQuestionToken = someHaveQuestionToken || ts.hasQuestionToken(node);
+                    allHaveQuestionToken = allHaveQuestionToken && ts.hasQuestionToken(node);
+                    if (ts.nodeIsPresent(node.body) && bodyDeclaration) {
+                        if (isConstructor) {
+                            multipleConstructorImplementation = true;
+                        }
+                        else {
+                            duplicateFunctionDeclaration = true;
+                        }
+                    }
+                    else if (previousDeclaration && previousDeclaration.parent === node.parent && previousDeclaration.end !== node.pos) {
+                        reportImplementationExpectedError(previousDeclaration);
+                    }
+                    if (ts.nodeIsPresent(node.body)) {
+                        if (!bodyDeclaration) {
+                            bodyDeclaration = node;
+                        }
+                    }
+                    else {
+                        hasOverloads = true;
+                    }
+                    previousDeclaration = node;
+                    if (!inAmbientContextOrInterface) {
+                        lastSeenNonAmbientDeclaration = node;
+                    }
+                }
+            }
+            if (multipleConstructorImplementation) {
+                ts.forEach(declarations, function (declaration) {
+                    error(declaration, ts.Diagnostics.Multiple_constructor_implementations_are_not_allowed);
+                });
+            }
+            if (duplicateFunctionDeclaration) {
+                ts.forEach(declarations, function (declaration) {
+                    error(ts.getNameOfDeclaration(declaration), ts.Diagnostics.Duplicate_function_implementation);
+                });
+            }
+            if (hasNonAmbientClass && !isConstructor && symbol.flags & 16) {
+                ts.forEach(declarations, function (declaration) {
+                    addDuplicateDeclarationError(declaration, ts.Diagnostics.Duplicate_identifier_0, ts.symbolName(symbol), declarations);
+                });
+            }
+            if (lastSeenNonAmbientDeclaration && !lastSeenNonAmbientDeclaration.body &&
+                !ts.hasModifier(lastSeenNonAmbientDeclaration, 128) && !lastSeenNonAmbientDeclaration.questionToken) {
+                reportImplementationExpectedError(lastSeenNonAmbientDeclaration);
+            }
+            if (hasOverloads) {
+                checkFlagAgreementBetweenOverloads(declarations, bodyDeclaration, flagsToCheck, someNodeFlags, allNodeFlags);
+                checkQuestionTokenAgreementBetweenOverloads(declarations, bodyDeclaration, someHaveQuestionToken, allHaveQuestionToken);
+                if (bodyDeclaration) {
+                    var signatures = getSignaturesOfSymbol(symbol);
+                    var bodySignature = getSignatureFromDeclaration(bodyDeclaration);
+                    for (var _a = 0, signatures_10 = signatures; _a < signatures_10.length; _a++) {
+                        var signature = signatures_10[_a];
+                        if (!isImplementationCompatibleWithOverload(bodySignature, signature)) {
+                            ts.addRelatedInfo(error(signature.declaration, ts.Diagnostics.This_overload_signature_is_not_compatible_with_its_implementation_signature), ts.createDiagnosticForNode(bodyDeclaration, ts.Diagnostics.The_implementation_signature_is_declared_here));
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+        function checkExportsOnMergedDeclarations(node) {
+            if (!produceDiagnostics) {
+                return;
+            }
+            var symbol = node.localSymbol;
+            if (!symbol) {
+                symbol = getSymbolOfNode(node);
+                if (!symbol.exportSymbol) {
+                    return;
+                }
+            }
+            if (ts.getDeclarationOfKind(symbol, node.kind) !== node) {
+                return;
+            }
+            var exportedDeclarationSpaces = 0;
+            var nonExportedDeclarationSpaces = 0;
+            var defaultExportedDeclarationSpaces = 0;
+            for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+                var d = _a[_i];
+                var declarationSpaces = getDeclarationSpaces(d);
+                var effectiveDeclarationFlags = getEffectiveDeclarationFlags(d, 1 | 512);
+                if (effectiveDeclarationFlags & 1) {
+                    if (effectiveDeclarationFlags & 512) {
+                        defaultExportedDeclarationSpaces |= declarationSpaces;
+                    }
+                    else {
+                        exportedDeclarationSpaces |= declarationSpaces;
+                    }
+                }
+                else {
+                    nonExportedDeclarationSpaces |= declarationSpaces;
+                }
+            }
+            var nonDefaultExportedDeclarationSpaces = exportedDeclarationSpaces | nonExportedDeclarationSpaces;
+            var commonDeclarationSpacesForExportsAndLocals = exportedDeclarationSpaces & nonExportedDeclarationSpaces;
+            var commonDeclarationSpacesForDefaultAndNonDefault = defaultExportedDeclarationSpaces & nonDefaultExportedDeclarationSpaces;
+            if (commonDeclarationSpacesForExportsAndLocals || commonDeclarationSpacesForDefaultAndNonDefault) {
+                for (var _b = 0, _c = symbol.declarations; _b < _c.length; _b++) {
+                    var d = _c[_b];
+                    var declarationSpaces = getDeclarationSpaces(d);
+                    var name = ts.getNameOfDeclaration(d);
+                    if (declarationSpaces & commonDeclarationSpacesForDefaultAndNonDefault) {
+                        error(name, ts.Diagnostics.Merged_declaration_0_cannot_include_a_default_export_declaration_Consider_adding_a_separate_export_default_0_declaration_instead, ts.declarationNameToString(name));
+                    }
+                    else if (declarationSpaces & commonDeclarationSpacesForExportsAndLocals) {
+                        error(name, ts.Diagnostics.Individual_declarations_in_merged_declaration_0_must_be_all_exported_or_all_local, ts.declarationNameToString(name));
+                    }
+                }
+            }
+            function getDeclarationSpaces(decl) {
+                var d = decl;
+                switch (d.kind) {
+                    case 246:
+                    case 247:
+                    case 322:
+                    case 315:
+                    case 316:
+                        return 2;
+                    case 249:
+                        return ts.isAmbientModule(d) || ts.getModuleInstanceState(d) !== 0
+                            ? 4 | 1
+                            : 4;
+                    case 245:
+                    case 248:
+                    case 284:
+                        return 2 | 1;
+                    case 290:
+                        return 2 | 1 | 4;
+                    case 259:
+                        if (!ts.isEntityNameExpression(d.expression)) {
+                            return 1;
+                        }
+                        d = d.expression;
+                    case 253:
+                    case 256:
+                    case 255:
+                        var result_10 = 0;
+                        var target = resolveAlias(getSymbolOfNode(d));
+                        ts.forEach(target.declarations, function (d) { result_10 |= getDeclarationSpaces(d); });
+                        return result_10;
+                    case 242:
+                    case 191:
+                    case 244:
+                    case 258:
+                    case 75:
+                        return 1;
+                    default:
+                        return ts.Debug.failBadSyntaxKind(d);
+                }
+            }
+        }
+        function getAwaitedTypeOfPromise(type, errorNode, diagnosticMessage, arg0) {
+            var promisedType = getPromisedTypeOfPromise(type, errorNode);
+            return promisedType && getAwaitedType(promisedType, errorNode, diagnosticMessage, arg0);
+        }
+        function getPromisedTypeOfPromise(type, errorNode) {
+            if (isTypeAny(type)) {
+                return undefined;
+            }
+            var typeAsPromise = type;
+            if (typeAsPromise.promisedTypeOfPromise) {
+                return typeAsPromise.promisedTypeOfPromise;
+            }
+            if (isReferenceToType(type, getGlobalPromiseType(false))) {
+                return typeAsPromise.promisedTypeOfPromise = getTypeArguments(type)[0];
+            }
+            var thenFunction = getTypeOfPropertyOfType(type, "then");
+            if (isTypeAny(thenFunction)) {
+                return undefined;
+            }
+            var thenSignatures = thenFunction ? getSignaturesOfType(thenFunction, 0) : ts.emptyArray;
+            if (thenSignatures.length === 0) {
+                if (errorNode) {
+                    error(errorNode, ts.Diagnostics.A_promise_must_have_a_then_method);
+                }
+                return undefined;
+            }
+            var onfulfilledParameterType = getTypeWithFacts(getUnionType(ts.map(thenSignatures, getTypeOfFirstParameterOfSignature)), 2097152);
+            if (isTypeAny(onfulfilledParameterType)) {
+                return undefined;
+            }
+            var onfulfilledParameterSignatures = getSignaturesOfType(onfulfilledParameterType, 0);
+            if (onfulfilledParameterSignatures.length === 0) {
+                if (errorNode) {
+                    error(errorNode, ts.Diagnostics.The_first_parameter_of_the_then_method_of_a_promise_must_be_a_callback);
+                }
+                return undefined;
+            }
+            return typeAsPromise.promisedTypeOfPromise = getUnionType(ts.map(onfulfilledParameterSignatures, getTypeOfFirstParameterOfSignature), 2);
+        }
+        function checkAwaitedType(type, errorNode, diagnosticMessage, arg0) {
+            var awaitedType = getAwaitedType(type, errorNode, diagnosticMessage, arg0);
+            return awaitedType || errorType;
+        }
+        function isThenableType(type) {
+            var thenFunction = getTypeOfPropertyOfType(type, "then");
+            return !!thenFunction && getSignaturesOfType(getTypeWithFacts(thenFunction, 2097152), 0).length > 0;
+        }
+        function getAwaitedType(type, errorNode, diagnosticMessage, arg0) {
+            if (isTypeAny(type)) {
+                return type;
+            }
+            var typeAsAwaitable = type;
+            if (typeAsAwaitable.awaitedTypeOfType) {
+                return typeAsAwaitable.awaitedTypeOfType;
+            }
+            return typeAsAwaitable.awaitedTypeOfType =
+                mapType(type, errorNode ? function (constituentType) { return getAwaitedTypeWorker(constituentType, errorNode, diagnosticMessage, arg0); } : getAwaitedTypeWorker);
+        }
+        function getAwaitedTypeWorker(type, errorNode, diagnosticMessage, arg0) {
+            var typeAsAwaitable = type;
+            if (typeAsAwaitable.awaitedTypeOfType) {
+                return typeAsAwaitable.awaitedTypeOfType;
+            }
+            var promisedType = getPromisedTypeOfPromise(type);
+            if (promisedType) {
+                if (type.id === promisedType.id || awaitedTypeStack.lastIndexOf(promisedType.id) >= 0) {
+                    if (errorNode) {
+                        error(errorNode, ts.Diagnostics.Type_is_referenced_directly_or_indirectly_in_the_fulfillment_callback_of_its_own_then_method);
+                    }
+                    return undefined;
+                }
+                awaitedTypeStack.push(type.id);
+                var awaitedType = getAwaitedType(promisedType, errorNode, diagnosticMessage, arg0);
+                awaitedTypeStack.pop();
+                if (!awaitedType) {
+                    return undefined;
+                }
+                return typeAsAwaitable.awaitedTypeOfType = awaitedType;
+            }
+            if (isThenableType(type)) {
+                if (errorNode) {
+                    if (!diagnosticMessage)
+                        return ts.Debug.fail();
+                    error(errorNode, diagnosticMessage, arg0);
+                }
+                return undefined;
+            }
+            return typeAsAwaitable.awaitedTypeOfType = type;
+        }
+        function checkAsyncFunctionReturnType(node, returnTypeNode) {
+            var returnType = getTypeFromTypeNode(returnTypeNode);
+            if (languageVersion >= 2) {
+                if (returnType === errorType) {
+                    return;
+                }
+                var globalPromiseType = getGlobalPromiseType(true);
+                if (globalPromiseType !== emptyGenericType && !isReferenceToType(returnType, globalPromiseType)) {
+                    error(returnTypeNode, ts.Diagnostics.The_return_type_of_an_async_function_or_method_must_be_the_global_Promise_T_type);
+                    return;
+                }
+            }
+            else {
+                markTypeNodeAsReferenced(returnTypeNode);
+                if (returnType === errorType) {
+                    return;
+                }
+                var promiseConstructorName = ts.getEntityNameFromTypeNode(returnTypeNode);
+                if (promiseConstructorName === undefined) {
+                    error(returnTypeNode, ts.Diagnostics.Type_0_is_not_a_valid_async_function_return_type_in_ES5_SlashES3_because_it_does_not_refer_to_a_Promise_compatible_constructor_value, typeToString(returnType));
+                    return;
+                }
+                var promiseConstructorSymbol = resolveEntityName(promiseConstructorName, 111551, true);
+                var promiseConstructorType = promiseConstructorSymbol ? getTypeOfSymbol(promiseConstructorSymbol) : errorType;
+                if (promiseConstructorType === errorType) {
+                    if (promiseConstructorName.kind === 75 && promiseConstructorName.escapedText === "Promise" && getTargetType(returnType) === getGlobalPromiseType(false)) {
+                        error(returnTypeNode, ts.Diagnostics.An_async_function_or_method_in_ES5_SlashES3_requires_the_Promise_constructor_Make_sure_you_have_a_declaration_for_the_Promise_constructor_or_include_ES2015_in_your_lib_option);
+                    }
+                    else {
+                        error(returnTypeNode, ts.Diagnostics.Type_0_is_not_a_valid_async_function_return_type_in_ES5_SlashES3_because_it_does_not_refer_to_a_Promise_compatible_constructor_value, ts.entityNameToString(promiseConstructorName));
+                    }
+                    return;
+                }
+                var globalPromiseConstructorLikeType = getGlobalPromiseConstructorLikeType(true);
+                if (globalPromiseConstructorLikeType === emptyObjectType) {
+                    error(returnTypeNode, ts.Diagnostics.Type_0_is_not_a_valid_async_function_return_type_in_ES5_SlashES3_because_it_does_not_refer_to_a_Promise_compatible_constructor_value, ts.entityNameToString(promiseConstructorName));
+                    return;
+                }
+                if (!checkTypeAssignableTo(promiseConstructorType, globalPromiseConstructorLikeType, returnTypeNode, ts.Diagnostics.Type_0_is_not_a_valid_async_function_return_type_in_ES5_SlashES3_because_it_does_not_refer_to_a_Promise_compatible_constructor_value)) {
+                    return;
+                }
+                var rootName = promiseConstructorName && ts.getFirstIdentifier(promiseConstructorName);
+                var collidingSymbol = getSymbol(node.locals, rootName.escapedText, 111551);
+                if (collidingSymbol) {
+                    error(collidingSymbol.valueDeclaration, ts.Diagnostics.Duplicate_identifier_0_Compiler_uses_declaration_1_to_support_async_functions, ts.idText(rootName), ts.entityNameToString(promiseConstructorName));
+                    return;
+                }
+            }
+            checkAwaitedType(returnType, node, ts.Diagnostics.The_return_type_of_an_async_function_must_either_be_a_valid_promise_or_must_not_contain_a_callable_then_member);
+        }
+        function checkDecorator(node) {
+            var signature = getResolvedSignature(node);
+            var returnType = getReturnTypeOfSignature(signature);
+            if (returnType.flags & 1) {
+                return;
+            }
+            var expectedReturnType;
+            var headMessage = getDiagnosticHeadMessageForDecoratorResolution(node);
+            var errorInfo;
+            switch (node.parent.kind) {
+                case 245:
+                    var classSymbol = getSymbolOfNode(node.parent);
+                    var classConstructorType = getTypeOfSymbol(classSymbol);
+                    expectedReturnType = getUnionType([classConstructorType, voidType]);
+                    break;
+                case 156:
+                    expectedReturnType = voidType;
+                    errorInfo = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.The_return_type_of_a_parameter_decorator_function_must_be_either_void_or_any);
+                    break;
+                case 159:
+                    expectedReturnType = voidType;
+                    errorInfo = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.The_return_type_of_a_property_decorator_function_must_be_either_void_or_any);
+                    break;
+                case 161:
+                case 163:
+                case 164:
+                    var methodType = getTypeOfNode(node.parent);
+                    var descriptorType = createTypedPropertyDescriptorType(methodType);
+                    expectedReturnType = getUnionType([descriptorType, voidType]);
+                    break;
+                default:
+                    return ts.Debug.fail();
+            }
+            checkTypeAssignableTo(returnType, expectedReturnType, node, headMessage, function () { return errorInfo; });
+        }
+        function markTypeNodeAsReferenced(node) {
+            markEntityNameOrEntityExpressionAsReference(node && ts.getEntityNameFromTypeNode(node));
+        }
+        function markEntityNameOrEntityExpressionAsReference(typeName) {
+            if (!typeName)
+                return;
+            var rootName = ts.getFirstIdentifier(typeName);
+            var meaning = (typeName.kind === 75 ? 788968 : 1920) | 2097152;
+            var rootSymbol = resolveName(rootName, rootName.escapedText, meaning, undefined, undefined, true);
+            if (rootSymbol
+                && rootSymbol.flags & 2097152
+                && symbolIsValue(rootSymbol)
+                && !isConstEnumOrConstEnumOnlyModule(resolveAlias(rootSymbol))
+                && !getTypeOnlyAliasDeclaration(rootSymbol)) {
+                markAliasSymbolAsReferenced(rootSymbol);
+            }
+        }
+        function markDecoratorMedataDataTypeNodeAsReferenced(node) {
+            var entityName = getEntityNameForDecoratorMetadata(node);
+            if (entityName && ts.isEntityName(entityName)) {
+                markEntityNameOrEntityExpressionAsReference(entityName);
+            }
+        }
+        function getEntityNameForDecoratorMetadata(node) {
+            if (node) {
+                switch (node.kind) {
+                    case 179:
+                    case 178:
+                        return getEntityNameForDecoratorMetadataFromTypeList(node.types);
+                    case 180:
+                        return getEntityNameForDecoratorMetadataFromTypeList([node.trueType, node.falseType]);
+                    case 182:
+                        return getEntityNameForDecoratorMetadata(node.type);
+                    case 169:
+                        return node.typeName;
+                }
+            }
+        }
+        function getEntityNameForDecoratorMetadataFromTypeList(types) {
+            var commonEntityName;
+            for (var _i = 0, types_20 = types; _i < types_20.length; _i++) {
+                var typeNode = types_20[_i];
+                while (typeNode.kind === 182) {
+                    typeNode = typeNode.type;
+                }
+                if (typeNode.kind === 137) {
+                    continue;
+                }
+                if (!strictNullChecks && (typeNode.kind === 100 || typeNode.kind === 146)) {
+                    continue;
+                }
+                var individualEntityName = getEntityNameForDecoratorMetadata(typeNode);
+                if (!individualEntityName) {
+                    return undefined;
+                }
+                if (commonEntityName) {
+                    if (!ts.isIdentifier(commonEntityName) ||
+                        !ts.isIdentifier(individualEntityName) ||
+                        commonEntityName.escapedText !== individualEntityName.escapedText) {
+                        return undefined;
+                    }
+                }
+                else {
+                    commonEntityName = individualEntityName;
+                }
+            }
+            return commonEntityName;
+        }
+        function getParameterTypeNodeForDecoratorCheck(node) {
+            var typeNode = ts.getEffectiveTypeAnnotationNode(node);
+            return ts.isRestParameter(node) ? ts.getRestParameterElementType(typeNode) : typeNode;
+        }
+        function checkDecorators(node) {
+            if (!node.decorators) {
+                return;
+            }
+            if (!ts.nodeCanBeDecorated(node, node.parent, node.parent.parent)) {
+                return;
+            }
+            if (!compilerOptions.experimentalDecorators) {
+                error(node, ts.Diagnostics.Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalDecorators_option_in_your_tsconfig_or_jsconfig_to_remove_this_warning);
+            }
+            var firstDecorator = node.decorators[0];
+            checkExternalEmitHelpers(firstDecorator, 8);
+            if (node.kind === 156) {
+                checkExternalEmitHelpers(firstDecorator, 32);
+            }
+            if (compilerOptions.emitDecoratorMetadata) {
+                checkExternalEmitHelpers(firstDecorator, 16);
+                switch (node.kind) {
+                    case 245:
+                        var constructor = ts.getFirstConstructorWithBody(node);
+                        if (constructor) {
+                            for (var _i = 0, _a = constructor.parameters; _i < _a.length; _i++) {
+                                var parameter = _a[_i];
+                                markDecoratorMedataDataTypeNodeAsReferenced(getParameterTypeNodeForDecoratorCheck(parameter));
+                            }
+                        }
+                        break;
+                    case 163:
+                    case 164:
+                        var otherKind = node.kind === 163 ? 164 : 163;
+                        var otherAccessor = ts.getDeclarationOfKind(getSymbolOfNode(node), otherKind);
+                        markDecoratorMedataDataTypeNodeAsReferenced(getAnnotatedAccessorTypeNode(node) || otherAccessor && getAnnotatedAccessorTypeNode(otherAccessor));
+                        break;
+                    case 161:
+                        for (var _b = 0, _c = node.parameters; _b < _c.length; _b++) {
+                            var parameter = _c[_b];
+                            markDecoratorMedataDataTypeNodeAsReferenced(getParameterTypeNodeForDecoratorCheck(parameter));
+                        }
+                        markDecoratorMedataDataTypeNodeAsReferenced(ts.getEffectiveReturnTypeNode(node));
+                        break;
+                    case 159:
+                        markDecoratorMedataDataTypeNodeAsReferenced(ts.getEffectiveTypeAnnotationNode(node));
+                        break;
+                    case 156:
+                        markDecoratorMedataDataTypeNodeAsReferenced(getParameterTypeNodeForDecoratorCheck(node));
+                        var containingSignature = node.parent;
+                        for (var _d = 0, _e = containingSignature.parameters; _d < _e.length; _d++) {
+                            var parameter = _e[_d];
+                            markDecoratorMedataDataTypeNodeAsReferenced(getParameterTypeNodeForDecoratorCheck(parameter));
+                        }
+                        break;
+                }
+            }
+            ts.forEach(node.decorators, checkDecorator);
+        }
+        function checkFunctionDeclaration(node) {
+            if (produceDiagnostics) {
+                checkFunctionOrMethodDeclaration(node);
+                checkGrammarForGenerator(node);
+                checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
+                checkCollisionWithGlobalPromiseInGeneratedCode(node, node.name);
+            }
+        }
+        function checkJSDocTypeAliasTag(node) {
+            if (!node.typeExpression) {
+                error(node.name, ts.Diagnostics.JSDoc_typedef_tag_should_either_have_a_type_annotation_or_be_followed_by_property_or_member_tags);
+            }
+            if (node.name) {
+                checkTypeNameIsReserved(node.name, ts.Diagnostics.Type_alias_name_cannot_be_0);
+            }
+            checkSourceElement(node.typeExpression);
+        }
+        function checkJSDocTemplateTag(node) {
+            checkSourceElement(node.constraint);
+            for (var _i = 0, _a = node.typeParameters; _i < _a.length; _i++) {
+                var tp = _a[_i];
+                checkSourceElement(tp);
+            }
+        }
+        function checkJSDocTypeTag(node) {
+            checkSourceElement(node.typeExpression);
+        }
+        function checkJSDocParameterTag(node) {
+            checkSourceElement(node.typeExpression);
+            if (!ts.getParameterSymbolFromJSDoc(node)) {
+                var decl = ts.getHostSignatureFromJSDoc(node);
+                if (decl) {
+                    var i = ts.getJSDocTags(decl).filter(ts.isJSDocParameterTag).indexOf(node);
+                    if (i > -1 && i < decl.parameters.length && ts.isBindingPattern(decl.parameters[i].name)) {
+                        return;
+                    }
+                    if (!containsArgumentsReference(decl)) {
+                        if (ts.isQualifiedName(node.name)) {
+                            error(node.name, ts.Diagnostics.Qualified_name_0_is_not_allowed_without_a_leading_param_object_1, ts.entityNameToString(node.name), ts.entityNameToString(node.name.left));
+                        }
+                        else {
+                            error(node.name, ts.Diagnostics.JSDoc_param_tag_has_name_0_but_there_is_no_parameter_with_that_name, ts.idText(node.name));
+                        }
+                    }
+                    else if (ts.findLast(ts.getJSDocTags(decl), ts.isJSDocParameterTag) === node &&
+                        node.typeExpression && node.typeExpression.type &&
+                        !isArrayType(getTypeFromTypeNode(node.typeExpression.type))) {
+                        error(node.name, ts.Diagnostics.JSDoc_param_tag_has_name_0_but_there_is_no_parameter_with_that_name_It_would_match_arguments_if_it_had_an_array_type, ts.idText(node.name.kind === 153 ? node.name.right : node.name));
+                    }
+                }
+            }
+        }
+        function checkJSDocPropertyTag(node) {
+            checkSourceElement(node.typeExpression);
+        }
+        function checkJSDocFunctionType(node) {
+            if (produceDiagnostics && !node.type && !ts.isJSDocConstructSignature(node)) {
+                reportImplicitAny(node, anyType);
+            }
+            checkSignatureDeclaration(node);
+        }
+        function checkJSDocImplementsTag(node) {
+            var classLike = ts.getEffectiveJSDocHost(node);
+            if (!classLike || !ts.isClassDeclaration(classLike) && !ts.isClassExpression(classLike)) {
+                error(classLike, ts.Diagnostics.JSDoc_0_is_not_attached_to_a_class, ts.idText(node.tagName));
+            }
+        }
+        function checkJSDocAugmentsTag(node) {
+            var classLike = ts.getEffectiveJSDocHost(node);
+            if (!classLike || !ts.isClassDeclaration(classLike) && !ts.isClassExpression(classLike)) {
+                error(classLike, ts.Diagnostics.JSDoc_0_is_not_attached_to_a_class, ts.idText(node.tagName));
+                return;
+            }
+            var augmentsTags = ts.getJSDocTags(classLike).filter(ts.isJSDocAugmentsTag);
+            ts.Debug.assert(augmentsTags.length > 0);
+            if (augmentsTags.length > 1) {
+                error(augmentsTags[1], ts.Diagnostics.Class_declarations_cannot_have_more_than_one_augments_or_extends_tag);
+            }
+            var name = getIdentifierFromEntityNameExpression(node.class.expression);
+            var extend = ts.getClassExtendsHeritageElement(classLike);
+            if (extend) {
+                var className = getIdentifierFromEntityNameExpression(extend.expression);
+                if (className && name.escapedText !== className.escapedText) {
+                    error(name, ts.Diagnostics.JSDoc_0_1_does_not_match_the_extends_2_clause, ts.idText(node.tagName), ts.idText(name), ts.idText(className));
+                }
+            }
+        }
+        function getIdentifierFromEntityNameExpression(node) {
+            switch (node.kind) {
+                case 75:
+                    return node;
+                case 194:
+                    return node.name;
+                default:
+                    return undefined;
+            }
+        }
+        function checkFunctionOrMethodDeclaration(node) {
+            checkDecorators(node);
+            checkSignatureDeclaration(node);
+            var functionFlags = ts.getFunctionFlags(node);
+            if (node.name && node.name.kind === 154) {
+                checkComputedPropertyName(node.name);
+            }
+            if (!hasNonBindableDynamicName(node)) {
+                var symbol = getSymbolOfNode(node);
+                var localSymbol = node.localSymbol || symbol;
+                var firstDeclaration = ts.find(localSymbol.declarations, function (declaration) { return declaration.kind === node.kind && !(declaration.flags & 131072); });
+                if (node === firstDeclaration) {
+                    checkFunctionOrConstructorSymbol(localSymbol);
+                }
+                if (symbol.parent) {
+                    if (ts.getDeclarationOfKind(symbol, node.kind) === node) {
+                        checkFunctionOrConstructorSymbol(symbol);
+                    }
+                }
+            }
+            var body = node.kind === 160 ? undefined : node.body;
+            checkSourceElement(body);
+            checkAllCodePathsInNonVoidFunctionReturnOrThrow(node, getReturnTypeFromAnnotation(node));
+            if (produceDiagnostics && !ts.getEffectiveReturnTypeNode(node)) {
+                if (ts.nodeIsMissing(body) && !isPrivateWithinAmbient(node)) {
+                    reportImplicitAny(node, anyType);
+                }
+                if (functionFlags & 1 && ts.nodeIsPresent(body)) {
+                    getReturnTypeOfSignature(getSignatureFromDeclaration(node));
+                }
+            }
+            if (ts.isInJSFile(node)) {
+                var typeTag = ts.getJSDocTypeTag(node);
+                if (typeTag && typeTag.typeExpression && !getContextualCallSignature(getTypeFromTypeNode(typeTag.typeExpression), node)) {
+                    error(typeTag, ts.Diagnostics.The_type_of_a_function_declaration_must_match_the_function_s_signature);
+                }
+            }
+        }
+        function registerForUnusedIdentifiersCheck(node) {
+            if (produceDiagnostics) {
+                var sourceFile = ts.getSourceFileOfNode(node);
+                var potentiallyUnusedIdentifiers = allPotentiallyUnusedIdentifiers.get(sourceFile.path);
+                if (!potentiallyUnusedIdentifiers) {
+                    potentiallyUnusedIdentifiers = [];
+                    allPotentiallyUnusedIdentifiers.set(sourceFile.path, potentiallyUnusedIdentifiers);
+                }
+                potentiallyUnusedIdentifiers.push(node);
+            }
+        }
+        function checkUnusedIdentifiers(potentiallyUnusedIdentifiers, addDiagnostic) {
+            for (var _i = 0, potentiallyUnusedIdentifiers_1 = potentiallyUnusedIdentifiers; _i < potentiallyUnusedIdentifiers_1.length; _i++) {
+                var node = potentiallyUnusedIdentifiers_1[_i];
+                switch (node.kind) {
+                    case 245:
+                    case 214:
+                        checkUnusedClassMembers(node, addDiagnostic);
+                        checkUnusedTypeParameters(node, addDiagnostic);
+                        break;
+                    case 290:
+                    case 249:
+                    case 223:
+                    case 251:
+                    case 230:
+                    case 231:
+                    case 232:
+                        checkUnusedLocalsAndParameters(node, addDiagnostic);
+                        break;
+                    case 162:
+                    case 201:
+                    case 244:
+                    case 202:
+                    case 161:
+                    case 163:
+                    case 164:
+                        if (node.body) {
+                            checkUnusedLocalsAndParameters(node, addDiagnostic);
+                        }
+                        checkUnusedTypeParameters(node, addDiagnostic);
+                        break;
+                    case 160:
+                    case 165:
+                    case 166:
+                    case 170:
+                    case 171:
+                    case 247:
+                    case 246:
+                        checkUnusedTypeParameters(node, addDiagnostic);
+                        break;
+                    case 181:
+                        checkUnusedInferTypeParameter(node, addDiagnostic);
+                        break;
+                    default:
+                        ts.Debug.assertNever(node, "Node should not have been registered for unused identifiers check");
+                }
+            }
+        }
+        function errorUnusedLocal(declaration, name, addDiagnostic) {
+            var node = ts.getNameOfDeclaration(declaration) || declaration;
+            var message = isTypeDeclaration(declaration) ? ts.Diagnostics._0_is_declared_but_never_used : ts.Diagnostics._0_is_declared_but_its_value_is_never_read;
+            addDiagnostic(declaration, 0, ts.createDiagnosticForNode(node, message, name));
+        }
+        function isIdentifierThatStartsWithUnderscore(node) {
+            return ts.isIdentifier(node) && ts.idText(node).charCodeAt(0) === 95;
+        }
+        function checkUnusedClassMembers(node, addDiagnostic) {
+            for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
+                var member = _a[_i];
+                switch (member.kind) {
+                    case 161:
+                    case 159:
+                    case 163:
+                    case 164:
+                        if (member.kind === 164 && member.symbol.flags & 32768) {
+                            break;
+                        }
+                        var symbol = getSymbolOfNode(member);
+                        if (!symbol.isReferenced
+                            && (ts.hasModifier(member, 8) || ts.isNamedDeclaration(member) && ts.isPrivateIdentifier(member.name))
+                            && !(member.flags & 8388608)) {
+                            addDiagnostic(member, 0, ts.createDiagnosticForNode(member.name, ts.Diagnostics._0_is_declared_but_its_value_is_never_read, symbolToString(symbol)));
+                        }
+                        break;
+                    case 162:
+                        for (var _b = 0, _c = member.parameters; _b < _c.length; _b++) {
+                            var parameter = _c[_b];
+                            if (!parameter.symbol.isReferenced && ts.hasModifier(parameter, 8)) {
+                                addDiagnostic(parameter, 0, ts.createDiagnosticForNode(parameter.name, ts.Diagnostics.Property_0_is_declared_but_its_value_is_never_read, ts.symbolName(parameter.symbol)));
+                            }
+                        }
+                        break;
+                    case 167:
+                    case 222:
+                        break;
+                    default:
+                        ts.Debug.fail();
+                }
+            }
+        }
+        function checkUnusedInferTypeParameter(node, addDiagnostic) {
+            var typeParameter = node.typeParameter;
+            if (isTypeParameterUnused(typeParameter)) {
+                addDiagnostic(node, 1, ts.createDiagnosticForNode(node, ts.Diagnostics._0_is_declared_but_its_value_is_never_read, ts.idText(typeParameter.name)));
+            }
+        }
+        function checkUnusedTypeParameters(node, addDiagnostic) {
+            if (ts.last(getSymbolOfNode(node).declarations) !== node)
+                return;
+            var typeParameters = ts.getEffectiveTypeParameterDeclarations(node);
+            var seenParentsWithEveryUnused = new ts.NodeSet();
+            for (var _i = 0, typeParameters_3 = typeParameters; _i < typeParameters_3.length; _i++) {
+                var typeParameter = typeParameters_3[_i];
+                if (!isTypeParameterUnused(typeParameter))
+                    continue;
+                var name = ts.idText(typeParameter.name);
+                var parent = typeParameter.parent;
+                if (parent.kind !== 181 && parent.typeParameters.every(isTypeParameterUnused)) {
+                    if (seenParentsWithEveryUnused.tryAdd(parent)) {
+                        var range = ts.isJSDocTemplateTag(parent)
+                            ? ts.rangeOfNode(parent)
+                            : ts.rangeOfTypeParameters(parent.typeParameters);
+                        var only = parent.typeParameters.length === 1;
+                        var message = only ? ts.Diagnostics._0_is_declared_but_its_value_is_never_read : ts.Diagnostics.All_type_parameters_are_unused;
+                        var arg0 = only ? name : undefined;
+                        addDiagnostic(typeParameter, 1, ts.createFileDiagnostic(ts.getSourceFileOfNode(parent), range.pos, range.end - range.pos, message, arg0));
+                    }
+                }
+                else {
+                    addDiagnostic(typeParameter, 1, ts.createDiagnosticForNode(typeParameter, ts.Diagnostics._0_is_declared_but_its_value_is_never_read, name));
+                }
+            }
+        }
+        function isTypeParameterUnused(typeParameter) {
+            return !(getMergedSymbol(typeParameter.symbol).isReferenced & 262144) && !isIdentifierThatStartsWithUnderscore(typeParameter.name);
+        }
+        function addToGroup(map, key, value, getKey) {
+            var keyString = String(getKey(key));
+            var group = map.get(keyString);
+            if (group) {
+                group[1].push(value);
+            }
+            else {
+                map.set(keyString, [key, [value]]);
+            }
+        }
+        function tryGetRootParameterDeclaration(node) {
+            return ts.tryCast(ts.getRootDeclaration(node), ts.isParameter);
+        }
+        function isValidUnusedLocalDeclaration(declaration) {
+            if (ts.isBindingElement(declaration) && isIdentifierThatStartsWithUnderscore(declaration.name)) {
+                return !!ts.findAncestor(declaration.parent, function (ancestor) {
+                    return ts.isArrayBindingPattern(ancestor) || ts.isVariableDeclaration(ancestor) || ts.isVariableDeclarationList(ancestor) ? false :
+                        ts.isForOfStatement(ancestor) ? true : "quit";
+                });
+            }
+            return ts.isAmbientModule(declaration) ||
+                (ts.isVariableDeclaration(declaration) && ts.isForInOrOfStatement(declaration.parent.parent) || isImportedDeclaration(declaration)) && isIdentifierThatStartsWithUnderscore(declaration.name);
+        }
+        function checkUnusedLocalsAndParameters(nodeWithLocals, addDiagnostic) {
+            var unusedImports = ts.createMap();
+            var unusedDestructures = ts.createMap();
+            var unusedVariables = ts.createMap();
+            nodeWithLocals.locals.forEach(function (local) {
+                if (local.flags & 262144 ? !(local.flags & 3 && !(local.isReferenced & 3)) : local.isReferenced || local.exportSymbol) {
+                    return;
+                }
+                for (var _i = 0, _a = local.declarations; _i < _a.length; _i++) {
+                    var declaration = _a[_i];
+                    if (isValidUnusedLocalDeclaration(declaration)) {
+                        continue;
+                    }
+                    if (isImportedDeclaration(declaration)) {
+                        addToGroup(unusedImports, importClauseFromImported(declaration), declaration, getNodeId);
+                    }
+                    else if (ts.isBindingElement(declaration) && ts.isObjectBindingPattern(declaration.parent)) {
+                        var lastElement = ts.last(declaration.parent.elements);
+                        if (declaration === lastElement || !ts.last(declaration.parent.elements).dotDotDotToken) {
+                            addToGroup(unusedDestructures, declaration.parent, declaration, getNodeId);
+                        }
+                    }
+                    else if (ts.isVariableDeclaration(declaration)) {
+                        addToGroup(unusedVariables, declaration.parent, declaration, getNodeId);
+                    }
+                    else {
+                        var parameter = local.valueDeclaration && tryGetRootParameterDeclaration(local.valueDeclaration);
+                        var name = local.valueDeclaration && ts.getNameOfDeclaration(local.valueDeclaration);
+                        if (parameter && name) {
+                            if (!ts.isParameterPropertyDeclaration(parameter, parameter.parent) && !ts.parameterIsThisKeyword(parameter) && !isIdentifierThatStartsWithUnderscore(name)) {
+                                addDiagnostic(parameter, 1, ts.createDiagnosticForNode(name, ts.Diagnostics._0_is_declared_but_its_value_is_never_read, ts.symbolName(local)));
+                            }
+                        }
+                        else {
+                            errorUnusedLocal(declaration, ts.symbolName(local), addDiagnostic);
+                        }
+                    }
+                }
+            });
+            unusedImports.forEach(function (_a) {
+                var importClause = _a[0], unuseds = _a[1];
+                var importDecl = importClause.parent;
+                var nDeclarations = (importClause.name ? 1 : 0) +
+                    (importClause.namedBindings ?
+                        (importClause.namedBindings.kind === 256 ? 1 : importClause.namedBindings.elements.length)
+                        : 0);
+                if (nDeclarations === unuseds.length) {
+                    addDiagnostic(importDecl, 0, unuseds.length === 1
+                        ? ts.createDiagnosticForNode(importDecl, ts.Diagnostics._0_is_declared_but_its_value_is_never_read, ts.idText(ts.first(unuseds).name))
+                        : ts.createDiagnosticForNode(importDecl, ts.Diagnostics.All_imports_in_import_declaration_are_unused));
+                }
+                else {
+                    for (var _i = 0, unuseds_1 = unuseds; _i < unuseds_1.length; _i++) {
+                        var unused = unuseds_1[_i];
+                        errorUnusedLocal(unused, ts.idText(unused.name), addDiagnostic);
+                    }
+                }
+            });
+            unusedDestructures.forEach(function (_a) {
+                var bindingPattern = _a[0], bindingElements = _a[1];
+                var kind = tryGetRootParameterDeclaration(bindingPattern.parent) ? 1 : 0;
+                if (bindingPattern.elements.length === bindingElements.length) {
+                    if (bindingElements.length === 1 && bindingPattern.parent.kind === 242 && bindingPattern.parent.parent.kind === 243) {
+                        addToGroup(unusedVariables, bindingPattern.parent.parent, bindingPattern.parent, getNodeId);
+                    }
+                    else {
+                        addDiagnostic(bindingPattern, kind, bindingElements.length === 1
+                            ? ts.createDiagnosticForNode(bindingPattern, ts.Diagnostics._0_is_declared_but_its_value_is_never_read, bindingNameText(ts.first(bindingElements).name))
+                            : ts.createDiagnosticForNode(bindingPattern, ts.Diagnostics.All_destructured_elements_are_unused));
+                    }
+                }
+                else {
+                    for (var _i = 0, bindingElements_1 = bindingElements; _i < bindingElements_1.length; _i++) {
+                        var e = bindingElements_1[_i];
+                        addDiagnostic(e, kind, ts.createDiagnosticForNode(e, ts.Diagnostics._0_is_declared_but_its_value_is_never_read, bindingNameText(e.name)));
+                    }
+                }
+            });
+            unusedVariables.forEach(function (_a) {
+                var declarationList = _a[0], declarations = _a[1];
+                if (declarationList.declarations.length === declarations.length) {
+                    addDiagnostic(declarationList, 0, declarations.length === 1
+                        ? ts.createDiagnosticForNode(ts.first(declarations).name, ts.Diagnostics._0_is_declared_but_its_value_is_never_read, bindingNameText(ts.first(declarations).name))
+                        : ts.createDiagnosticForNode(declarationList.parent.kind === 225 ? declarationList.parent : declarationList, ts.Diagnostics.All_variables_are_unused));
+                }
+                else {
+                    for (var _i = 0, declarations_5 = declarations; _i < declarations_5.length; _i++) {
+                        var decl = declarations_5[_i];
+                        addDiagnostic(decl, 0, ts.createDiagnosticForNode(decl, ts.Diagnostics._0_is_declared_but_its_value_is_never_read, bindingNameText(decl.name)));
+                    }
+                }
+            });
+        }
+        function bindingNameText(name) {
+            switch (name.kind) {
+                case 75:
+                    return ts.idText(name);
+                case 190:
+                case 189:
+                    return bindingNameText(ts.cast(ts.first(name.elements), ts.isBindingElement).name);
+                default:
+                    return ts.Debug.assertNever(name);
+            }
+        }
+        function isImportedDeclaration(node) {
+            return node.kind === 255 || node.kind === 258 || node.kind === 256;
+        }
+        function importClauseFromImported(decl) {
+            return decl.kind === 255 ? decl : decl.kind === 256 ? decl.parent : decl.parent.parent;
+        }
+        function checkBlock(node) {
+            if (node.kind === 223) {
+                checkGrammarStatementInAmbientContext(node);
+            }
+            if (ts.isFunctionOrModuleBlock(node)) {
+                var saveFlowAnalysisDisabled = flowAnalysisDisabled;
+                ts.forEach(node.statements, checkSourceElement);
+                flowAnalysisDisabled = saveFlowAnalysisDisabled;
+            }
+            else {
+                ts.forEach(node.statements, checkSourceElement);
+            }
+            if (node.locals) {
+                registerForUnusedIdentifiersCheck(node);
+            }
+        }
+        function checkCollisionWithArgumentsInGeneratedCode(node) {
+            if (languageVersion >= 2 || compilerOptions.noEmit || !ts.hasRestParameter(node) || node.flags & 8388608 || ts.nodeIsMissing(node.body)) {
+                return;
+            }
+            ts.forEach(node.parameters, function (p) {
+                if (p.name && !ts.isBindingPattern(p.name) && p.name.escapedText === argumentsSymbol.escapedName) {
+                    error(p, ts.Diagnostics.Duplicate_identifier_arguments_Compiler_uses_arguments_to_initialize_rest_parameters);
+                }
+            });
+        }
+        function needCollisionCheckForIdentifier(node, identifier, name) {
+            if (!(identifier && identifier.escapedText === name)) {
+                return false;
+            }
+            if (node.kind === 159 ||
+                node.kind === 158 ||
+                node.kind === 161 ||
+                node.kind === 160 ||
+                node.kind === 163 ||
+                node.kind === 164) {
+                return false;
+            }
+            if (node.flags & 8388608) {
+                return false;
+            }
+            var root = ts.getRootDeclaration(node);
+            if (root.kind === 156 && ts.nodeIsMissing(root.parent.body)) {
+                return false;
+            }
+            return true;
+        }
+        function checkIfThisIsCapturedInEnclosingScope(node) {
+            ts.findAncestor(node, function (current) {
+                if (getNodeCheckFlags(current) & 4) {
+                    var isDeclaration_1 = node.kind !== 75;
+                    if (isDeclaration_1) {
+                        error(ts.getNameOfDeclaration(node), ts.Diagnostics.Duplicate_identifier_this_Compiler_uses_variable_declaration_this_to_capture_this_reference);
+                    }
+                    else {
+                        error(node, ts.Diagnostics.Expression_resolves_to_variable_declaration_this_that_compiler_uses_to_capture_this_reference);
+                    }
+                    return true;
+                }
+                return false;
+            });
+        }
+        function checkIfNewTargetIsCapturedInEnclosingScope(node) {
+            ts.findAncestor(node, function (current) {
+                if (getNodeCheckFlags(current) & 8) {
+                    var isDeclaration_2 = node.kind !== 75;
+                    if (isDeclaration_2) {
+                        error(ts.getNameOfDeclaration(node), ts.Diagnostics.Duplicate_identifier_newTarget_Compiler_uses_variable_declaration_newTarget_to_capture_new_target_meta_property_reference);
+                    }
+                    else {
+                        error(node, ts.Diagnostics.Expression_resolves_to_variable_declaration_newTarget_that_compiler_uses_to_capture_new_target_meta_property_reference);
+                    }
+                    return true;
+                }
+                return false;
+            });
+        }
+        function checkWeakMapCollision(node) {
+            var enclosingBlockScope = ts.getEnclosingBlockScopeContainer(node);
+            if (getNodeCheckFlags(enclosingBlockScope) & 67108864) {
+                error(node, ts.Diagnostics.Compiler_reserves_name_0_when_emitting_private_identifier_downlevel, "WeakMap");
+            }
+        }
+        function checkCollisionWithRequireExportsInGeneratedCode(node, name) {
+            if (moduleKind >= ts.ModuleKind.ES2015 || compilerOptions.noEmit) {
+                return;
+            }
+            if (!needCollisionCheckForIdentifier(node, name, "require") && !needCollisionCheckForIdentifier(node, name, "exports")) {
+                return;
+            }
+            if (ts.isModuleDeclaration(node) && ts.getModuleInstanceState(node) !== 1) {
+                return;
+            }
+            var parent = getDeclarationContainer(node);
+            if (parent.kind === 290 && ts.isExternalOrCommonJsModule(parent)) {
+                error(name, ts.Diagnostics.Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module, ts.declarationNameToString(name), ts.declarationNameToString(name));
+            }
+        }
+        function checkCollisionWithGlobalPromiseInGeneratedCode(node, name) {
+            if (languageVersion >= 4 || compilerOptions.noEmit || !needCollisionCheckForIdentifier(node, name, "Promise")) {
+                return;
+            }
+            if (ts.isModuleDeclaration(node) && ts.getModuleInstanceState(node) !== 1) {
+                return;
+            }
+            var parent = getDeclarationContainer(node);
+            if (parent.kind === 290 && ts.isExternalOrCommonJsModule(parent) && parent.flags & 2048) {
+                error(name, ts.Diagnostics.Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module_containing_async_functions, ts.declarationNameToString(name), ts.declarationNameToString(name));
+            }
+        }
+        function checkVarDeclaredNamesNotShadowed(node) {
+            if ((ts.getCombinedNodeFlags(node) & 3) !== 0 || ts.isParameterDeclaration(node)) {
+                return;
+            }
+            if (node.kind === 242 && !node.initializer) {
+                return;
+            }
+            var symbol = getSymbolOfNode(node);
+            if (symbol.flags & 1) {
+                if (!ts.isIdentifier(node.name))
+                    return ts.Debug.fail();
+                var localDeclarationSymbol = resolveName(node, node.name.escapedText, 3, undefined, undefined, false);
+                if (localDeclarationSymbol &&
+                    localDeclarationSymbol !== symbol &&
+                    localDeclarationSymbol.flags & 2) {
+                    if (getDeclarationNodeFlagsFromSymbol(localDeclarationSymbol) & 3) {
+                        var varDeclList = ts.getAncestor(localDeclarationSymbol.valueDeclaration, 243);
+                        var container = varDeclList.parent.kind === 225 && varDeclList.parent.parent
+                            ? varDeclList.parent.parent
+                            : undefined;
+                        var namesShareScope = container &&
+                            (container.kind === 223 && ts.isFunctionLike(container.parent) ||
+                                container.kind === 250 ||
+                                container.kind === 249 ||
+                                container.kind === 290);
+                        if (!namesShareScope) {
+                            var name = symbolToString(localDeclarationSymbol);
+                            error(node, ts.Diagnostics.Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1, name, name);
+                        }
+                    }
+                }
+            }
+        }
+        function convertAutoToAny(type) {
+            return type === autoType ? anyType : type === autoArrayType ? anyArrayType : type;
+        }
+        function checkVariableLikeDeclaration(node) {
+            checkDecorators(node);
+            if (!ts.isBindingElement(node)) {
+                checkSourceElement(node.type);
+            }
+            if (!node.name) {
+                return;
+            }
+            if (node.name.kind === 154) {
+                checkComputedPropertyName(node.name);
+                if (node.initializer) {
+                    checkExpressionCached(node.initializer);
+                }
+            }
+            if (node.kind === 191) {
+                if (node.parent.kind === 189 && languageVersion < 99) {
+                    checkExternalEmitHelpers(node, 4);
+                }
+                if (node.propertyName && node.propertyName.kind === 154) {
+                    checkComputedPropertyName(node.propertyName);
+                }
+                var parent = node.parent.parent;
+                var parentType = getTypeForBindingElementParent(parent);
+                var name = node.propertyName || node.name;
+                if (parentType && !ts.isBindingPattern(name)) {
+                    var exprType = getLiteralTypeFromPropertyName(name);
+                    if (isTypeUsableAsPropertyName(exprType)) {
+                        var nameText = getPropertyNameFromType(exprType);
+                        var property = getPropertyOfType(parentType, nameText);
+                        if (property) {
+                            markPropertyAsReferenced(property, undefined, false);
+                            checkPropertyAccessibility(parent, !!parent.initializer && parent.initializer.kind === 102, parentType, property);
+                        }
+                    }
+                }
+            }
+            if (ts.isBindingPattern(node.name)) {
+                if (node.name.kind === 190 && languageVersion < 2 && compilerOptions.downlevelIteration) {
+                    checkExternalEmitHelpers(node, 512);
+                }
+                ts.forEach(node.name.elements, checkSourceElement);
+            }
+            if (node.initializer && ts.getRootDeclaration(node).kind === 156 && ts.nodeIsMissing(ts.getContainingFunction(node).body)) {
+                error(node, ts.Diagnostics.A_parameter_initializer_is_only_allowed_in_a_function_or_constructor_implementation);
+                return;
+            }
+            if (ts.isBindingPattern(node.name)) {
+                var needCheckInitializer = node.initializer && node.parent.parent.kind !== 231;
+                var needCheckWidenedType = node.name.elements.length === 0;
+                if (needCheckInitializer || needCheckWidenedType) {
+                    var widenedType = getWidenedTypeForVariableLikeDeclaration(node);
+                    if (needCheckInitializer) {
+                        var initializerType = checkExpressionCached(node.initializer);
+                        if (strictNullChecks && needCheckWidenedType) {
+                            checkNonNullNonVoidType(initializerType, node);
+                        }
+                        else {
+                            checkTypeAssignableToAndOptionallyElaborate(initializerType, getWidenedTypeForVariableLikeDeclaration(node), node, node.initializer);
+                        }
+                    }
+                    if (needCheckWidenedType) {
+                        if (ts.isArrayBindingPattern(node.name)) {
+                            checkIteratedTypeOrElementType(65, widenedType, undefinedType, node);
+                        }
+                        else if (strictNullChecks) {
+                            checkNonNullNonVoidType(widenedType, node);
+                        }
+                    }
+                }
+                return;
+            }
+            var symbol = getSymbolOfNode(node);
+            var type = convertAutoToAny(getTypeOfSymbol(symbol));
+            if (node === symbol.valueDeclaration) {
+                var initializer = ts.getEffectiveInitializer(node);
+                if (initializer) {
+                    var isJSObjectLiteralInitializer = ts.isInJSFile(node) &&
+                        ts.isObjectLiteralExpression(initializer) &&
+                        (initializer.properties.length === 0 || ts.isPrototypeAccess(node.name)) &&
+                        ts.hasEntries(symbol.exports);
+                    if (!isJSObjectLiteralInitializer && node.parent.parent.kind !== 231) {
+                        checkTypeAssignableToAndOptionallyElaborate(checkExpressionCached(initializer), type, node, initializer, undefined);
+                    }
+                }
+                if (symbol.declarations.length > 1) {
+                    if (ts.some(symbol.declarations, function (d) { return d !== node && ts.isVariableLike(d) && !areDeclarationFlagsIdentical(d, node); })) {
+                        error(node.name, ts.Diagnostics.All_declarations_of_0_must_have_identical_modifiers, ts.declarationNameToString(node.name));
+                    }
+                }
+            }
+            else {
+                var declarationType = convertAutoToAny(getWidenedTypeForVariableLikeDeclaration(node));
+                if (type !== errorType && declarationType !== errorType &&
+                    !isTypeIdenticalTo(type, declarationType) &&
+                    !(symbol.flags & 67108864)) {
+                    errorNextVariableOrPropertyDeclarationMustHaveSameType(symbol.valueDeclaration, type, node, declarationType);
+                }
+                if (node.initializer) {
+                    checkTypeAssignableToAndOptionallyElaborate(checkExpressionCached(node.initializer), declarationType, node, node.initializer, undefined);
+                }
+                if (!areDeclarationFlagsIdentical(node, symbol.valueDeclaration)) {
+                    error(node.name, ts.Diagnostics.All_declarations_of_0_must_have_identical_modifiers, ts.declarationNameToString(node.name));
+                }
+            }
+            if (node.kind !== 159 && node.kind !== 158) {
+                checkExportsOnMergedDeclarations(node);
+                if (node.kind === 242 || node.kind === 191) {
+                    checkVarDeclaredNamesNotShadowed(node);
+                }
+                checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
+                checkCollisionWithGlobalPromiseInGeneratedCode(node, node.name);
+                if (!compilerOptions.noEmit && languageVersion < 99 && needCollisionCheckForIdentifier(node, node.name, "WeakMap")) {
+                    potentialWeakMapCollisions.push(node);
+                }
+            }
+        }
+        function errorNextVariableOrPropertyDeclarationMustHaveSameType(firstDeclaration, firstType, nextDeclaration, nextType) {
+            var nextDeclarationName = ts.getNameOfDeclaration(nextDeclaration);
+            var message = nextDeclaration.kind === 159 || nextDeclaration.kind === 158
+                ? ts.Diagnostics.Subsequent_property_declarations_must_have_the_same_type_Property_0_must_be_of_type_1_but_here_has_type_2
+                : ts.Diagnostics.Subsequent_variable_declarations_must_have_the_same_type_Variable_0_must_be_of_type_1_but_here_has_type_2;
+            var declName = ts.declarationNameToString(nextDeclarationName);
+            var err = error(nextDeclarationName, message, declName, typeToString(firstType), typeToString(nextType));
+            if (firstDeclaration) {
+                ts.addRelatedInfo(err, ts.createDiagnosticForNode(firstDeclaration, ts.Diagnostics._0_was_also_declared_here, declName));
+            }
+        }
+        function areDeclarationFlagsIdentical(left, right) {
+            if ((left.kind === 156 && right.kind === 242) ||
+                (left.kind === 242 && right.kind === 156)) {
+                return true;
+            }
+            if (ts.hasQuestionToken(left) !== ts.hasQuestionToken(right)) {
+                return false;
+            }
+            var interestingFlags = 8 |
+                16 |
+                256 |
+                128 |
+                64 |
+                32;
+            return ts.getSelectedModifierFlags(left, interestingFlags) === ts.getSelectedModifierFlags(right, interestingFlags);
+        }
+        function checkVariableDeclaration(node) {
+            checkGrammarVariableDeclaration(node);
+            return checkVariableLikeDeclaration(node);
+        }
+        function checkBindingElement(node) {
+            checkGrammarBindingElement(node);
+            return checkVariableLikeDeclaration(node);
+        }
+        function checkVariableStatement(node) {
+            if (!checkGrammarDecoratorsAndModifiers(node) && !checkGrammarVariableDeclarationList(node.declarationList))
+                checkGrammarForDisallowedLetOrConstStatement(node);
+            ts.forEach(node.declarationList.declarations, checkSourceElement);
+        }
+        function checkExpressionStatement(node) {
+            checkGrammarStatementInAmbientContext(node);
+            checkExpression(node.expression);
+        }
+        function checkIfStatement(node) {
+            checkGrammarStatementInAmbientContext(node);
+            var type = checkTruthinessExpression(node.expression);
+            checkTestingKnownTruthyCallableType(node.expression, node.thenStatement, type);
+            checkSourceElement(node.thenStatement);
+            if (node.thenStatement.kind === 224) {
+                error(node.thenStatement, ts.Diagnostics.The_body_of_an_if_statement_cannot_be_the_empty_statement);
+            }
+            checkSourceElement(node.elseStatement);
+        }
+        function checkTestingKnownTruthyCallableType(condExpr, body, type) {
+            if (!strictNullChecks) {
+                return;
+            }
+            var testedNode = ts.isIdentifier(condExpr)
+                ? condExpr
+                : ts.isPropertyAccessExpression(condExpr)
+                    ? condExpr.name
+                    : undefined;
+            if (!testedNode) {
+                return;
+            }
+            var possiblyFalsy = getFalsyFlags(type);
+            if (possiblyFalsy) {
+                return;
+            }
+            var callSignatures = getSignaturesOfType(type, 0);
+            if (callSignatures.length === 0) {
+                return;
+            }
+            var testedFunctionSymbol = getSymbolAtLocation(testedNode);
+            if (!testedFunctionSymbol) {
+                return;
+            }
+            var functionIsUsedInBody = ts.forEachChild(body, function check(childNode) {
+                if (ts.isIdentifier(childNode)) {
+                    var childSymbol = getSymbolAtLocation(childNode);
+                    if (childSymbol && childSymbol === testedFunctionSymbol) {
+                        if (ts.isIdentifier(condExpr)) {
+                            return true;
+                        }
+                        var testedExpression = testedNode.parent;
+                        var childExpression = childNode.parent;
+                        while (testedExpression && childExpression) {
+                            if (ts.isIdentifier(testedExpression) && ts.isIdentifier(childExpression) ||
+                                testedExpression.kind === 104 && childExpression.kind === 104) {
+                                return getSymbolAtLocation(testedExpression) === getSymbolAtLocation(childExpression);
+                            }
+                            if (ts.isPropertyAccessExpression(testedExpression) && ts.isPropertyAccessExpression(childExpression)) {
+                                if (getSymbolAtLocation(testedExpression.name) !== getSymbolAtLocation(childExpression.name)) {
+                                    return false;
+                                }
+                                childExpression = childExpression.expression;
+                                testedExpression = testedExpression.expression;
+                            }
+                            else {
+                                return false;
+                            }
+                        }
+                    }
+                }
+                return ts.forEachChild(childNode, check);
+            });
+            if (!functionIsUsedInBody) {
+                error(condExpr, ts.Diagnostics.This_condition_will_always_return_true_since_the_function_is_always_defined_Did_you_mean_to_call_it_instead);
+            }
+        }
+        function checkDoStatement(node) {
+            checkGrammarStatementInAmbientContext(node);
+            checkSourceElement(node.statement);
+            checkTruthinessExpression(node.expression);
+        }
+        function checkWhileStatement(node) {
+            checkGrammarStatementInAmbientContext(node);
+            checkTruthinessExpression(node.expression);
+            checkSourceElement(node.statement);
+        }
+        function checkTruthinessOfType(type, node) {
+            if (type.flags & 16384) {
+                error(node, ts.Diagnostics.An_expression_of_type_void_cannot_be_tested_for_truthiness);
+            }
+            return type;
+        }
+        function checkTruthinessExpression(node, checkMode) {
+            return checkTruthinessOfType(checkExpression(node, checkMode), node);
+        }
+        function checkForStatement(node) {
+            if (!checkGrammarStatementInAmbientContext(node)) {
+                if (node.initializer && node.initializer.kind === 243) {
+                    checkGrammarVariableDeclarationList(node.initializer);
+                }
+            }
+            if (node.initializer) {
+                if (node.initializer.kind === 243) {
+                    ts.forEach(node.initializer.declarations, checkVariableDeclaration);
+                }
+                else {
+                    checkExpression(node.initializer);
+                }
+            }
+            if (node.condition)
+                checkTruthinessExpression(node.condition);
+            if (node.incrementor)
+                checkExpression(node.incrementor);
+            checkSourceElement(node.statement);
+            if (node.locals) {
+                registerForUnusedIdentifiersCheck(node);
+            }
+        }
+        function checkForOfStatement(node) {
+            checkGrammarForInOrForOfStatement(node);
+            if (node.awaitModifier) {
+                var functionFlags = ts.getFunctionFlags(ts.getContainingFunction(node));
+                if ((functionFlags & (4 | 2)) === 2 && languageVersion < 99) {
+                    checkExternalEmitHelpers(node, 32768);
+                }
+            }
+            else if (compilerOptions.downlevelIteration && languageVersion < 2) {
+                checkExternalEmitHelpers(node, 256);
+            }
+            if (node.initializer.kind === 243) {
+                checkForInOrForOfVariableDeclaration(node);
+            }
+            else {
+                var varExpr = node.initializer;
+                var iteratedType = checkRightHandSideOfForOf(node);
+                if (varExpr.kind === 192 || varExpr.kind === 193) {
+                    checkDestructuringAssignment(varExpr, iteratedType || errorType);
+                }
+                else {
+                    var leftType = checkExpression(varExpr);
+                    checkReferenceExpression(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_of_statement_must_be_a_variable_or_a_property_access, ts.Diagnostics.The_left_hand_side_of_a_for_of_statement_may_not_be_an_optional_property_access);
+                    if (iteratedType) {
+                        checkTypeAssignableToAndOptionallyElaborate(iteratedType, leftType, varExpr, node.expression);
+                    }
+                }
+            }
+            checkSourceElement(node.statement);
+            if (node.locals) {
+                registerForUnusedIdentifiersCheck(node);
+            }
+        }
+        function checkForInStatement(node) {
+            checkGrammarForInOrForOfStatement(node);
+            var rightType = getNonNullableTypeIfNeeded(checkExpression(node.expression));
+            if (node.initializer.kind === 243) {
+                var variable = node.initializer.declarations[0];
+                if (variable && ts.isBindingPattern(variable.name)) {
+                    error(variable.name, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern);
+                }
+                checkForInOrForOfVariableDeclaration(node);
+            }
+            else {
+                var varExpr = node.initializer;
+                var leftType = checkExpression(varExpr);
+                if (varExpr.kind === 192 || varExpr.kind === 193) {
+                    error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern);
+                }
+                else if (!isTypeAssignableTo(getIndexTypeOrString(rightType), leftType)) {
+                    error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_must_be_of_type_string_or_any);
+                }
+                else {
+                    checkReferenceExpression(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_must_be_a_variable_or_a_property_access, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_may_not_be_an_optional_property_access);
+                }
+            }
+            if (rightType === neverType || !isTypeAssignableToKind(rightType, 67108864 | 58982400)) {
+                error(node.expression, ts.Diagnostics.The_right_hand_side_of_a_for_in_statement_must_be_of_type_any_an_object_type_or_a_type_parameter_but_here_has_type_0, typeToString(rightType));
+            }
+            checkSourceElement(node.statement);
+            if (node.locals) {
+                registerForUnusedIdentifiersCheck(node);
+            }
+        }
+        function checkForInOrForOfVariableDeclaration(iterationStatement) {
+            var variableDeclarationList = iterationStatement.initializer;
+            if (variableDeclarationList.declarations.length >= 1) {
+                var decl = variableDeclarationList.declarations[0];
+                checkVariableDeclaration(decl);
+            }
+        }
+        function checkRightHandSideOfForOf(statement) {
+            var use = statement.awaitModifier ? 15 : 13;
+            return checkIteratedTypeOrElementType(use, checkNonNullExpression(statement.expression), undefinedType, statement.expression);
+        }
+        function checkIteratedTypeOrElementType(use, inputType, sentType, errorNode) {
+            if (isTypeAny(inputType)) {
+                return inputType;
+            }
+            return getIteratedTypeOrElementType(use, inputType, sentType, errorNode, true) || anyType;
+        }
+        function getIteratedTypeOrElementType(use, inputType, sentType, errorNode, checkAssignability) {
+            var allowAsyncIterables = (use & 2) !== 0;
+            if (inputType === neverType) {
+                reportTypeNotIterableError(errorNode, inputType, allowAsyncIterables);
+                return undefined;
+            }
+            var uplevelIteration = languageVersion >= 2;
+            var downlevelIteration = !uplevelIteration && compilerOptions.downlevelIteration;
+            if (uplevelIteration || downlevelIteration || allowAsyncIterables) {
+                var iterationTypes = getIterationTypesOfIterable(inputType, use, uplevelIteration ? errorNode : undefined);
+                if (checkAssignability) {
+                    if (iterationTypes) {
+                        var diagnostic = use & 8 ? ts.Diagnostics.Cannot_iterate_value_because_the_next_method_of_its_iterator_expects_type_1_but_for_of_will_always_send_0 :
+                            use & 32 ? ts.Diagnostics.Cannot_iterate_value_because_the_next_method_of_its_iterator_expects_type_1_but_array_spread_will_always_send_0 :
+                                use & 64 ? ts.Diagnostics.Cannot_iterate_value_because_the_next_method_of_its_iterator_expects_type_1_but_array_destructuring_will_always_send_0 :
+                                    use & 16 ? ts.Diagnostics.Cannot_delegate_iteration_to_value_because_the_next_method_of_its_iterator_expects_type_1_but_the_containing_generator_will_always_send_0 :
+                                        undefined;
+                        if (diagnostic) {
+                            checkTypeAssignableTo(sentType, iterationTypes.nextType, errorNode, diagnostic);
+                        }
+                    }
+                }
+                if (iterationTypes || uplevelIteration) {
+                    return iterationTypes && iterationTypes.yieldType;
+                }
+            }
+            var arrayType = inputType;
+            var reportedError = false;
+            var hasStringConstituent = false;
+            if (use & 4) {
+                if (arrayType.flags & 1048576) {
+                    var arrayTypes = inputType.types;
+                    var filteredTypes = ts.filter(arrayTypes, function (t) { return !(t.flags & 132); });
+                    if (filteredTypes !== arrayTypes) {
+                        arrayType = getUnionType(filteredTypes, 2);
+                    }
+                }
+                else if (arrayType.flags & 132) {
+                    arrayType = neverType;
+                }
+                hasStringConstituent = arrayType !== inputType;
+                if (hasStringConstituent) {
+                    if (languageVersion < 1) {
+                        if (errorNode) {
+                            error(errorNode, ts.Diagnostics.Using_a_string_in_a_for_of_statement_is_only_supported_in_ECMAScript_5_and_higher);
+                            reportedError = true;
+                        }
+                    }
+                    if (arrayType.flags & 131072) {
+                        return stringType;
+                    }
+                }
+            }
+            if (!isArrayLikeType(arrayType)) {
+                if (errorNode && !reportedError) {
+                    var yieldType = getIterationTypeOfIterable(use, 0, inputType, undefined);
+                    var _a = !(use & 4) || hasStringConstituent
+                        ? downlevelIteration
+                            ? [ts.Diagnostics.Type_0_is_not_an_array_type_or_does_not_have_a_Symbol_iterator_method_that_returns_an_iterator, true]
+                            : yieldType
+                                ? [ts.Diagnostics.Type_0_is_not_an_array_type_or_a_string_type_Use_compiler_option_downlevelIteration_to_allow_iterating_of_iterators, false]
+                                : [ts.Diagnostics.Type_0_is_not_an_array_type, true]
+                        : downlevelIteration
+                            ? [ts.Diagnostics.Type_0_is_not_an_array_type_or_a_string_type_or_does_not_have_a_Symbol_iterator_method_that_returns_an_iterator, true]
+                            : yieldType
+                                ? [ts.Diagnostics.Type_0_is_not_an_array_type_or_a_string_type_Use_compiler_option_downlevelIteration_to_allow_iterating_of_iterators, false]
+                                : [ts.Diagnostics.Type_0_is_not_an_array_type_or_a_string_type, true], defaultDiagnostic = _a[0], maybeMissingAwait = _a[1];
+                    errorAndMaybeSuggestAwait(errorNode, maybeMissingAwait && !!getAwaitedTypeOfPromise(arrayType), defaultDiagnostic, typeToString(arrayType));
+                }
+                return hasStringConstituent ? stringType : undefined;
+            }
+            var arrayElementType = getIndexTypeOfType(arrayType, 1);
+            if (hasStringConstituent && arrayElementType) {
+                if (arrayElementType.flags & 132) {
+                    return stringType;
+                }
+                return getUnionType([arrayElementType, stringType], 2);
+            }
+            return arrayElementType;
+        }
+        function getIterationTypeOfIterable(use, typeKind, inputType, errorNode) {
+            if (isTypeAny(inputType)) {
+                return undefined;
+            }
+            var iterationTypes = getIterationTypesOfIterable(inputType, use, errorNode);
+            return iterationTypes && iterationTypes[getIterationTypesKeyFromIterationTypeKind(typeKind)];
+        }
+        function createIterationTypes(yieldType, returnType, nextType) {
+            if (yieldType === void 0) { yieldType = neverType; }
+            if (returnType === void 0) { returnType = neverType; }
+            if (nextType === void 0) { nextType = unknownType; }
+            if (yieldType.flags & 67359327 &&
+                returnType.flags & (1 | 131072 | 2 | 16384 | 32768) &&
+                nextType.flags & (1 | 131072 | 2 | 16384 | 32768)) {
+                var id = getTypeListId([yieldType, returnType, nextType]);
+                var iterationTypes = iterationTypesCache.get(id);
+                if (!iterationTypes) {
+                    iterationTypes = { yieldType: yieldType, returnType: returnType, nextType: nextType };
+                    iterationTypesCache.set(id, iterationTypes);
+                }
+                return iterationTypes;
+            }
+            return { yieldType: yieldType, returnType: returnType, nextType: nextType };
+        }
+        function combineIterationTypes(array) {
+            var yieldTypes;
+            var returnTypes;
+            var nextTypes;
+            for (var _i = 0, array_10 = array; _i < array_10.length; _i++) {
+                var iterationTypes = array_10[_i];
+                if (iterationTypes === undefined || iterationTypes === noIterationTypes) {
+                    continue;
+                }
+                if (iterationTypes === anyIterationTypes) {
+                    return anyIterationTypes;
+                }
+                yieldTypes = ts.append(yieldTypes, iterationTypes.yieldType);
+                returnTypes = ts.append(returnTypes, iterationTypes.returnType);
+                nextTypes = ts.append(nextTypes, iterationTypes.nextType);
+            }
+            if (yieldTypes || returnTypes || nextTypes) {
+                return createIterationTypes(yieldTypes && getUnionType(yieldTypes), returnTypes && getUnionType(returnTypes), nextTypes && getIntersectionType(nextTypes));
+            }
+            return noIterationTypes;
+        }
+        function getCachedIterationTypes(type, cacheKey) {
+            return type[cacheKey];
+        }
+        function setCachedIterationTypes(type, cacheKey, cachedTypes) {
+            return type[cacheKey] = cachedTypes;
+        }
+        function getIterationTypesOfIterable(type, use, errorNode) {
+            if (isTypeAny(type)) {
+                return anyIterationTypes;
+            }
+            if (!(type.flags & 1048576)) {
+                var iterationTypes_1 = getIterationTypesOfIterableWorker(type, use, errorNode);
+                if (iterationTypes_1 === noIterationTypes) {
+                    if (errorNode) {
+                        reportTypeNotIterableError(errorNode, type, !!(use & 2));
+                    }
+                    return undefined;
+                }
+                return iterationTypes_1;
+            }
+            var cacheKey = use & 2 ? "iterationTypesOfAsyncIterable" : "iterationTypesOfIterable";
+            var cachedTypes = getCachedIterationTypes(type, cacheKey);
+            if (cachedTypes)
+                return cachedTypes === noIterationTypes ? undefined : cachedTypes;
+            var allIterationTypes;
+            for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
+                var constituent = _a[_i];
+                var iterationTypes_2 = getIterationTypesOfIterableWorker(constituent, use, errorNode);
+                if (iterationTypes_2 === noIterationTypes) {
+                    if (errorNode) {
+                        reportTypeNotIterableError(errorNode, type, !!(use & 2));
+                        errorNode = undefined;
+                    }
+                }
+                else {
+                    allIterationTypes = ts.append(allIterationTypes, iterationTypes_2);
+                }
+            }
+            var iterationTypes = allIterationTypes ? combineIterationTypes(allIterationTypes) : noIterationTypes;
+            setCachedIterationTypes(type, cacheKey, iterationTypes);
+            return iterationTypes === noIterationTypes ? undefined : iterationTypes;
+        }
+        function getAsyncFromSyncIterationTypes(iterationTypes, errorNode) {
+            if (iterationTypes === noIterationTypes)
+                return noIterationTypes;
+            if (iterationTypes === anyIterationTypes)
+                return anyIterationTypes;
+            var yieldType = iterationTypes.yieldType, returnType = iterationTypes.returnType, nextType = iterationTypes.nextType;
+            return createIterationTypes(getAwaitedType(yieldType, errorNode) || anyType, getAwaitedType(returnType, errorNode) || anyType, nextType);
+        }
+        function getIterationTypesOfIterableWorker(type, use, errorNode) {
+            if (isTypeAny(type)) {
+                return anyIterationTypes;
+            }
+            if (use & 2) {
+                var iterationTypes = getIterationTypesOfIterableCached(type, asyncIterationTypesResolver) ||
+                    getIterationTypesOfIterableFast(type, asyncIterationTypesResolver);
+                if (iterationTypes) {
+                    return iterationTypes;
+                }
+            }
+            if (use & 1) {
+                var iterationTypes = getIterationTypesOfIterableCached(type, syncIterationTypesResolver) ||
+                    getIterationTypesOfIterableFast(type, syncIterationTypesResolver);
+                if (iterationTypes) {
+                    if (use & 2) {
+                        if (iterationTypes !== noIterationTypes) {
+                            return setCachedIterationTypes(type, "iterationTypesOfAsyncIterable", getAsyncFromSyncIterationTypes(iterationTypes, errorNode));
+                        }
+                    }
+                    else {
+                        return iterationTypes;
+                    }
+                }
+            }
+            if (use & 2) {
+                var iterationTypes = getIterationTypesOfIterableSlow(type, asyncIterationTypesResolver, errorNode);
+                if (iterationTypes !== noIterationTypes) {
+                    return iterationTypes;
+                }
+            }
+            if (use & 1) {
+                var iterationTypes = getIterationTypesOfIterableSlow(type, syncIterationTypesResolver, errorNode);
+                if (iterationTypes !== noIterationTypes) {
+                    if (use & 2) {
+                        return setCachedIterationTypes(type, "iterationTypesOfAsyncIterable", iterationTypes
+                            ? getAsyncFromSyncIterationTypes(iterationTypes, errorNode)
+                            : noIterationTypes);
+                    }
+                    else {
+                        return iterationTypes;
+                    }
+                }
+            }
+            return noIterationTypes;
+        }
+        function getIterationTypesOfIterableCached(type, resolver) {
+            return getCachedIterationTypes(type, resolver.iterableCacheKey);
+        }
+        function getIterationTypesOfGlobalIterableType(globalType, resolver) {
+            var globalIterationTypes = getIterationTypesOfIterableCached(globalType, resolver) ||
+                getIterationTypesOfIterableSlow(globalType, resolver, undefined);
+            return globalIterationTypes === noIterationTypes ? defaultIterationTypes : globalIterationTypes;
+        }
+        function getIterationTypesOfIterableFast(type, resolver) {
+            var globalType;
+            if (isReferenceToType(type, globalType = resolver.getGlobalIterableType(false)) ||
+                isReferenceToType(type, globalType = resolver.getGlobalIterableIteratorType(false))) {
+                var yieldType = getTypeArguments(type)[0];
+                var _a = getIterationTypesOfGlobalIterableType(globalType, resolver), returnType = _a.returnType, nextType = _a.nextType;
+                return setCachedIterationTypes(type, resolver.iterableCacheKey, createIterationTypes(yieldType, returnType, nextType));
+            }
+            if (isReferenceToType(type, resolver.getGlobalGeneratorType(false))) {
+                var _b = getTypeArguments(type), yieldType = _b[0], returnType = _b[1], nextType = _b[2];
+                return setCachedIterationTypes(type, resolver.iterableCacheKey, createIterationTypes(yieldType, returnType, nextType));
+            }
+        }
+        function getIterationTypesOfIterableSlow(type, resolver, errorNode) {
+            var _a;
+            var method = getPropertyOfType(type, ts.getPropertyNameForKnownSymbolName(resolver.iteratorSymbolName));
+            var methodType = method && !(method.flags & 16777216) ? getTypeOfSymbol(method) : undefined;
+            if (isTypeAny(methodType)) {
+                return setCachedIterationTypes(type, resolver.iterableCacheKey, anyIterationTypes);
+            }
+            var signatures = methodType ? getSignaturesOfType(methodType, 0) : undefined;
+            if (!ts.some(signatures)) {
+                return setCachedIterationTypes(type, resolver.iterableCacheKey, noIterationTypes);
+            }
+            var iteratorType = getUnionType(ts.map(signatures, getReturnTypeOfSignature), 2);
+            var iterationTypes = (_a = getIterationTypesOfIterator(iteratorType, resolver, errorNode)) !== null && _a !== void 0 ? _a : noIterationTypes;
+            return setCachedIterationTypes(type, resolver.iterableCacheKey, iterationTypes);
+        }
+        function reportTypeNotIterableError(errorNode, type, allowAsyncIterables) {
+            var message = allowAsyncIterables
+                ? ts.Diagnostics.Type_0_must_have_a_Symbol_asyncIterator_method_that_returns_an_async_iterator
+                : ts.Diagnostics.Type_0_must_have_a_Symbol_iterator_method_that_returns_an_iterator;
+            errorAndMaybeSuggestAwait(errorNode, !!getAwaitedTypeOfPromise(type), message, typeToString(type));
+        }
+        function getIterationTypesOfIterator(type, resolver, errorNode) {
+            if (isTypeAny(type)) {
+                return anyIterationTypes;
+            }
+            var iterationTypes = getIterationTypesOfIteratorCached(type, resolver) ||
+                getIterationTypesOfIteratorFast(type, resolver) ||
+                getIterationTypesOfIteratorSlow(type, resolver, errorNode);
+            return iterationTypes === noIterationTypes ? undefined : iterationTypes;
+        }
+        function getIterationTypesOfIteratorCached(type, resolver) {
+            return getCachedIterationTypes(type, resolver.iteratorCacheKey);
+        }
+        function getIterationTypesOfIteratorFast(type, resolver) {
+            var globalType = resolver.getGlobalIterableIteratorType(false);
+            if (isReferenceToType(type, globalType)) {
+                var yieldType = getTypeArguments(type)[0];
+                var globalIterationTypes = getIterationTypesOfIteratorCached(globalType, resolver) ||
+                    getIterationTypesOfIteratorSlow(globalType, resolver, undefined);
+                var _a = globalIterationTypes === noIterationTypes ? defaultIterationTypes : globalIterationTypes, returnType = _a.returnType, nextType = _a.nextType;
+                return setCachedIterationTypes(type, resolver.iteratorCacheKey, createIterationTypes(yieldType, returnType, nextType));
+            }
+            if (isReferenceToType(type, resolver.getGlobalIteratorType(false)) ||
+                isReferenceToType(type, resolver.getGlobalGeneratorType(false))) {
+                var _b = getTypeArguments(type), yieldType = _b[0], returnType = _b[1], nextType = _b[2];
+                return setCachedIterationTypes(type, resolver.iteratorCacheKey, createIterationTypes(yieldType, returnType, nextType));
+            }
+        }
+        function isIteratorResult(type, kind) {
+            var doneType = getTypeOfPropertyOfType(type, "done") || falseType;
+            return isTypeAssignableTo(kind === 0 ? falseType : trueType, doneType);
+        }
+        function isYieldIteratorResult(type) {
+            return isIteratorResult(type, 0);
+        }
+        function isReturnIteratorResult(type) {
+            return isIteratorResult(type, 1);
+        }
+        function getIterationTypesOfIteratorResult(type) {
+            if (isTypeAny(type)) {
+                return anyIterationTypes;
+            }
+            var cachedTypes = getCachedIterationTypes(type, "iterationTypesOfIteratorResult");
+            if (cachedTypes) {
+                return cachedTypes;
+            }
+            if (isReferenceToType(type, getGlobalIteratorYieldResultType(false))) {
+                var yieldType_1 = getTypeArguments(type)[0];
+                return setCachedIterationTypes(type, "iterationTypesOfIteratorResult", createIterationTypes(yieldType_1, undefined, undefined));
+            }
+            if (isReferenceToType(type, getGlobalIteratorReturnResultType(false))) {
+                var returnType_1 = getTypeArguments(type)[0];
+                return setCachedIterationTypes(type, "iterationTypesOfIteratorResult", createIterationTypes(undefined, returnType_1, undefined));
+            }
+            var yieldIteratorResult = filterType(type, isYieldIteratorResult);
+            var yieldType = yieldIteratorResult !== neverType ? getTypeOfPropertyOfType(yieldIteratorResult, "value") : undefined;
+            var returnIteratorResult = filterType(type, isReturnIteratorResult);
+            var returnType = returnIteratorResult !== neverType ? getTypeOfPropertyOfType(returnIteratorResult, "value") : undefined;
+            if (!yieldType && !returnType) {
+                return setCachedIterationTypes(type, "iterationTypesOfIteratorResult", noIterationTypes);
+            }
+            return setCachedIterationTypes(type, "iterationTypesOfIteratorResult", createIterationTypes(yieldType, returnType || voidType, undefined));
+        }
+        function getIterationTypesOfMethod(type, resolver, methodName, errorNode) {
+            var method = getPropertyOfType(type, methodName);
+            if (!method && methodName !== "next") {
+                return undefined;
+            }
+            var methodType = method && !(methodName === "next" && (method.flags & 16777216))
+                ? methodName === "next" ? getTypeOfSymbol(method) : getTypeWithFacts(getTypeOfSymbol(method), 2097152)
+                : undefined;
+            if (isTypeAny(methodType)) {
+                return methodName === "next" ? anyIterationTypes : anyIterationTypesExceptNext;
+            }
+            var methodSignatures = methodType ? getSignaturesOfType(methodType, 0) : ts.emptyArray;
+            if (methodSignatures.length === 0) {
+                if (errorNode) {
+                    var diagnostic = methodName === "next"
+                        ? resolver.mustHaveANextMethodDiagnostic
+                        : resolver.mustBeAMethodDiagnostic;
+                    error(errorNode, diagnostic, methodName);
+                }
+                return methodName === "next" ? anyIterationTypes : undefined;
+            }
+            var methodParameterTypes;
+            var methodReturnTypes;
+            for (var _i = 0, methodSignatures_1 = methodSignatures; _i < methodSignatures_1.length; _i++) {
+                var signature = methodSignatures_1[_i];
+                if (methodName !== "throw" && ts.some(signature.parameters)) {
+                    methodParameterTypes = ts.append(methodParameterTypes, getTypeAtPosition(signature, 0));
+                }
+                methodReturnTypes = ts.append(methodReturnTypes, getReturnTypeOfSignature(signature));
+            }
+            var returnTypes;
+            var nextType;
+            if (methodName !== "throw") {
+                var methodParameterType = methodParameterTypes ? getUnionType(methodParameterTypes) : unknownType;
+                if (methodName === "next") {
+                    nextType = methodParameterType;
+                }
+                else if (methodName === "return") {
+                    var resolvedMethodParameterType = resolver.resolveIterationType(methodParameterType, errorNode) || anyType;
+                    returnTypes = ts.append(returnTypes, resolvedMethodParameterType);
+                }
+            }
+            var yieldType;
+            var methodReturnType = methodReturnTypes ? getUnionType(methodReturnTypes, 2) : neverType;
+            var resolvedMethodReturnType = resolver.resolveIterationType(methodReturnType, errorNode) || anyType;
+            var iterationTypes = getIterationTypesOfIteratorResult(resolvedMethodReturnType);
+            if (iterationTypes === noIterationTypes) {
+                if (errorNode) {
+                    error(errorNode, resolver.mustHaveAValueDiagnostic, methodName);
+                }
+                yieldType = anyType;
+                returnTypes = ts.append(returnTypes, anyType);
+            }
+            else {
+                yieldType = iterationTypes.yieldType;
+                returnTypes = ts.append(returnTypes, iterationTypes.returnType);
+            }
+            return createIterationTypes(yieldType, getUnionType(returnTypes), nextType);
+        }
+        function getIterationTypesOfIteratorSlow(type, resolver, errorNode) {
+            var iterationTypes = combineIterationTypes([
+                getIterationTypesOfMethod(type, resolver, "next", errorNode),
+                getIterationTypesOfMethod(type, resolver, "return", errorNode),
+                getIterationTypesOfMethod(type, resolver, "throw", errorNode),
+            ]);
+            return setCachedIterationTypes(type, resolver.iteratorCacheKey, iterationTypes);
+        }
+        function getIterationTypeOfGeneratorFunctionReturnType(kind, returnType, isAsyncGenerator) {
+            if (isTypeAny(returnType)) {
+                return undefined;
+            }
+            var iterationTypes = getIterationTypesOfGeneratorFunctionReturnType(returnType, isAsyncGenerator);
+            return iterationTypes && iterationTypes[getIterationTypesKeyFromIterationTypeKind(kind)];
+        }
+        function getIterationTypesOfGeneratorFunctionReturnType(type, isAsyncGenerator) {
+            if (isTypeAny(type)) {
+                return anyIterationTypes;
+            }
+            var use = isAsyncGenerator ? 2 : 1;
+            var resolver = isAsyncGenerator ? asyncIterationTypesResolver : syncIterationTypesResolver;
+            return getIterationTypesOfIterable(type, use, undefined) ||
+                getIterationTypesOfIterator(type, resolver, undefined);
+        }
+        function checkBreakOrContinueStatement(node) {
+            if (!checkGrammarStatementInAmbientContext(node))
+                checkGrammarBreakOrContinueStatement(node);
+        }
+        function unwrapReturnType(returnType, functionFlags) {
+            var _a, _b;
+            var isGenerator = !!(functionFlags & 1);
+            var isAsync = !!(functionFlags & 2);
+            return isGenerator ? (_a = getIterationTypeOfGeneratorFunctionReturnType(1, returnType, isAsync)) !== null && _a !== void 0 ? _a : errorType :
+                isAsync ? (_b = getAwaitedType(returnType)) !== null && _b !== void 0 ? _b : errorType :
+                    returnType;
+        }
+        function isUnwrappedReturnTypeVoidOrAny(func, returnType) {
+            var unwrappedReturnType = unwrapReturnType(returnType, ts.getFunctionFlags(func));
+            return !!unwrappedReturnType && maybeTypeOfKind(unwrappedReturnType, 16384 | 3);
+        }
+        function checkReturnStatement(node) {
+            var _a;
+            if (checkGrammarStatementInAmbientContext(node)) {
+                return;
+            }
+            var func = ts.getContainingFunction(node);
+            if (!func) {
+                grammarErrorOnFirstToken(node, ts.Diagnostics.A_return_statement_can_only_be_used_within_a_function_body);
+                return;
+            }
+            var signature = getSignatureFromDeclaration(func);
+            var returnType = getReturnTypeOfSignature(signature);
+            var functionFlags = ts.getFunctionFlags(func);
+            if (strictNullChecks || node.expression || returnType.flags & 131072) {
+                var exprType = node.expression ? checkExpressionCached(node.expression) : undefinedType;
+                if (func.kind === 164) {
+                    if (node.expression) {
+                        error(node, ts.Diagnostics.Setters_cannot_return_a_value);
+                    }
+                }
+                else if (func.kind === 162) {
+                    if (node.expression && !checkTypeAssignableToAndOptionallyElaborate(exprType, returnType, node, node.expression)) {
+                        error(node, ts.Diagnostics.Return_type_of_constructor_signature_must_be_assignable_to_the_instance_type_of_the_class);
+                    }
+                }
+                else if (getReturnTypeFromAnnotation(func)) {
+                    var unwrappedReturnType = (_a = unwrapReturnType(returnType, functionFlags)) !== null && _a !== void 0 ? _a : returnType;
+                    var unwrappedExprType = functionFlags & 2
+                        ? checkAwaitedType(exprType, node, ts.Diagnostics.The_return_type_of_an_async_function_must_either_be_a_valid_promise_or_must_not_contain_a_callable_then_member)
+                        : exprType;
+                    if (unwrappedReturnType) {
+                        checkTypeAssignableToAndOptionallyElaborate(unwrappedExprType, unwrappedReturnType, node, node.expression);
+                    }
+                }
+            }
+            else if (func.kind !== 162 && compilerOptions.noImplicitReturns && !isUnwrappedReturnTypeVoidOrAny(func, returnType)) {
+                error(node, ts.Diagnostics.Not_all_code_paths_return_a_value);
+            }
+        }
+        function checkWithStatement(node) {
+            if (!checkGrammarStatementInAmbientContext(node)) {
+                if (node.flags & 32768) {
+                    grammarErrorOnFirstToken(node, ts.Diagnostics.with_statements_are_not_allowed_in_an_async_function_block);
+                }
+            }
+            checkExpression(node.expression);
+            var sourceFile = ts.getSourceFileOfNode(node);
+            if (!hasParseDiagnostics(sourceFile)) {
+                var start = ts.getSpanOfTokenAtPosition(sourceFile, node.pos).start;
+                var end = node.statement.pos;
+                grammarErrorAtPos(sourceFile, start, end - start, ts.Diagnostics.The_with_statement_is_not_supported_All_symbols_in_a_with_block_will_have_type_any);
+            }
+        }
+        function checkSwitchStatement(node) {
+            checkGrammarStatementInAmbientContext(node);
+            var firstDefaultClause;
+            var hasDuplicateDefaultClause = false;
+            var expressionType = checkExpression(node.expression);
+            var expressionIsLiteral = isLiteralType(expressionType);
+            ts.forEach(node.caseBlock.clauses, function (clause) {
+                if (clause.kind === 278 && !hasDuplicateDefaultClause) {
+                    if (firstDefaultClause === undefined) {
+                        firstDefaultClause = clause;
+                    }
+                    else {
+                        grammarErrorOnNode(clause, ts.Diagnostics.A_default_clause_cannot_appear_more_than_once_in_a_switch_statement);
+                        hasDuplicateDefaultClause = true;
+                    }
+                }
+                if (produceDiagnostics && clause.kind === 277) {
+                    var caseType = checkExpression(clause.expression);
+                    var caseIsLiteral = isLiteralType(caseType);
+                    var comparedExpressionType = expressionType;
+                    if (!caseIsLiteral || !expressionIsLiteral) {
+                        caseType = caseIsLiteral ? getBaseTypeOfLiteralType(caseType) : caseType;
+                        comparedExpressionType = getBaseTypeOfLiteralType(expressionType);
+                    }
+                    if (!isTypeEqualityComparableTo(comparedExpressionType, caseType)) {
+                        checkTypeComparableTo(caseType, comparedExpressionType, clause.expression, undefined);
+                    }
+                }
+                ts.forEach(clause.statements, checkSourceElement);
+                if (compilerOptions.noFallthroughCasesInSwitch && clause.fallthroughFlowNode && isReachableFlowNode(clause.fallthroughFlowNode)) {
+                    error(clause, ts.Diagnostics.Fallthrough_case_in_switch);
+                }
+            });
+            if (node.caseBlock.locals) {
+                registerForUnusedIdentifiersCheck(node.caseBlock);
+            }
+        }
+        function checkLabeledStatement(node) {
+            if (!checkGrammarStatementInAmbientContext(node)) {
+                ts.findAncestor(node.parent, function (current) {
+                    if (ts.isFunctionLike(current)) {
+                        return "quit";
+                    }
+                    if (current.kind === 238 && current.label.escapedText === node.label.escapedText) {
+                        grammarErrorOnNode(node.label, ts.Diagnostics.Duplicate_label_0, ts.getTextOfNode(node.label));
+                        return true;
+                    }
+                    return false;
+                });
+            }
+            checkSourceElement(node.statement);
+        }
+        function checkThrowStatement(node) {
+            if (!checkGrammarStatementInAmbientContext(node)) {
+                if (node.expression === undefined) {
+                    grammarErrorAfterFirstToken(node, ts.Diagnostics.Line_break_not_permitted_here);
+                }
+            }
+            if (node.expression) {
+                checkExpression(node.expression);
+            }
+        }
+        function checkTryStatement(node) {
+            checkGrammarStatementInAmbientContext(node);
+            checkBlock(node.tryBlock);
+            var catchClause = node.catchClause;
+            if (catchClause) {
+                if (catchClause.variableDeclaration) {
+                    if (catchClause.variableDeclaration.type) {
+                        grammarErrorOnFirstToken(catchClause.variableDeclaration.type, ts.Diagnostics.Catch_clause_variable_cannot_have_a_type_annotation);
+                    }
+                    else if (catchClause.variableDeclaration.initializer) {
+                        grammarErrorOnFirstToken(catchClause.variableDeclaration.initializer, ts.Diagnostics.Catch_clause_variable_cannot_have_an_initializer);
+                    }
+                    else {
+                        var blockLocals_1 = catchClause.block.locals;
+                        if (blockLocals_1) {
+                            ts.forEachKey(catchClause.locals, function (caughtName) {
+                                var blockLocal = blockLocals_1.get(caughtName);
+                                if (blockLocal && (blockLocal.flags & 2) !== 0) {
+                                    grammarErrorOnNode(blockLocal.valueDeclaration, ts.Diagnostics.Cannot_redeclare_identifier_0_in_catch_clause, caughtName);
+                                }
+                            });
+                        }
+                    }
+                }
+                checkBlock(catchClause.block);
+            }
+            if (node.finallyBlock) {
+                checkBlock(node.finallyBlock);
+            }
+        }
+        function checkIndexConstraints(type) {
+            var declaredNumberIndexer = getIndexDeclarationOfSymbol(type.symbol, 1);
+            var declaredStringIndexer = getIndexDeclarationOfSymbol(type.symbol, 0);
+            var stringIndexType = getIndexTypeOfType(type, 0);
+            var numberIndexType = getIndexTypeOfType(type, 1);
+            if (stringIndexType || numberIndexType) {
+                ts.forEach(getPropertiesOfObjectType(type), function (prop) {
+                    var propType = getTypeOfSymbol(prop);
+                    checkIndexConstraintForProperty(prop, propType, type, declaredStringIndexer, stringIndexType, 0);
+                    checkIndexConstraintForProperty(prop, propType, type, declaredNumberIndexer, numberIndexType, 1);
+                });
+                var classDeclaration = type.symbol.valueDeclaration;
+                if (ts.getObjectFlags(type) & 1 && ts.isClassLike(classDeclaration)) {
+                    for (var _i = 0, _a = classDeclaration.members; _i < _a.length; _i++) {
+                        var member = _a[_i];
+                        if (!ts.hasModifier(member, 32) && hasNonBindableDynamicName(member)) {
+                            var symbol = getSymbolOfNode(member);
+                            var propType = getTypeOfSymbol(symbol);
+                            checkIndexConstraintForProperty(symbol, propType, type, declaredStringIndexer, stringIndexType, 0);
+                            checkIndexConstraintForProperty(symbol, propType, type, declaredNumberIndexer, numberIndexType, 1);
+                        }
+                    }
+                }
+            }
+            var errorNode;
+            if (stringIndexType && numberIndexType) {
+                errorNode = declaredNumberIndexer || declaredStringIndexer;
+                if (!errorNode && (ts.getObjectFlags(type) & 2)) {
+                    var someBaseTypeHasBothIndexers = ts.forEach(getBaseTypes(type), function (base) { return getIndexTypeOfType(base, 0) && getIndexTypeOfType(base, 1); });
+                    errorNode = someBaseTypeHasBothIndexers ? undefined : type.symbol.declarations[0];
+                }
+            }
+            if (errorNode && !isTypeAssignableTo(numberIndexType, stringIndexType)) {
+                error(errorNode, ts.Diagnostics.Numeric_index_type_0_is_not_assignable_to_string_index_type_1, typeToString(numberIndexType), typeToString(stringIndexType));
+            }
+            function checkIndexConstraintForProperty(prop, propertyType, containingType, indexDeclaration, indexType, indexKind) {
+                if (!indexType || ts.isKnownSymbol(prop)) {
+                    return;
+                }
+                var propDeclaration = prop.valueDeclaration;
+                var name = propDeclaration && ts.getNameOfDeclaration(propDeclaration);
+                if (name && ts.isPrivateIdentifier(name)) {
+                    return;
+                }
+                if (indexKind === 1 && !(name ? isNumericName(name) : isNumericLiteralName(prop.escapedName))) {
+                    return;
+                }
+                var errorNode;
+                if (propDeclaration && name &&
+                    (propDeclaration.kind === 209 ||
+                        name.kind === 154 ||
+                        prop.parent === containingType.symbol)) {
+                    errorNode = propDeclaration;
+                }
+                else if (indexDeclaration) {
+                    errorNode = indexDeclaration;
+                }
+                else if (ts.getObjectFlags(containingType) & 2) {
+                    var someBaseClassHasBothPropertyAndIndexer = ts.forEach(getBaseTypes(containingType), function (base) { return getPropertyOfObjectType(base, prop.escapedName) && getIndexTypeOfType(base, indexKind); });
+                    errorNode = someBaseClassHasBothPropertyAndIndexer ? undefined : containingType.symbol.declarations[0];
+                }
+                if (errorNode && !isTypeAssignableTo(propertyType, indexType)) {
+                    var errorMessage = indexKind === 0
+                        ? ts.Diagnostics.Property_0_of_type_1_is_not_assignable_to_string_index_type_2
+                        : ts.Diagnostics.Property_0_of_type_1_is_not_assignable_to_numeric_index_type_2;
+                    error(errorNode, errorMessage, symbolToString(prop), typeToString(propertyType), typeToString(indexType));
+                }
+            }
+        }
+        function checkTypeNameIsReserved(name, message) {
+            switch (name.escapedText) {
+                case "any":
+                case "unknown":
+                case "number":
+                case "bigint":
+                case "boolean":
+                case "string":
+                case "symbol":
+                case "void":
+                case "object":
+                    error(name, message, name.escapedText);
+            }
+        }
+        function checkClassNameCollisionWithObject(name) {
+            if (languageVersion === 1 && name.escapedText === "Object"
+                && moduleKind < ts.ModuleKind.ES2015) {
+                error(name, ts.Diagnostics.Class_name_cannot_be_Object_when_targeting_ES5_with_module_0, ts.ModuleKind[moduleKind]);
+            }
+        }
+        function checkTypeParameters(typeParameterDeclarations) {
+            if (typeParameterDeclarations) {
+                var seenDefault = false;
+                for (var i = 0; i < typeParameterDeclarations.length; i++) {
+                    var node = typeParameterDeclarations[i];
+                    checkTypeParameter(node);
+                    if (produceDiagnostics) {
+                        if (node.default) {
+                            seenDefault = true;
+                            checkTypeParametersNotReferenced(node.default, typeParameterDeclarations, i);
+                        }
+                        else if (seenDefault) {
+                            error(node, ts.Diagnostics.Required_type_parameters_may_not_follow_optional_type_parameters);
+                        }
+                        for (var j = 0; j < i; j++) {
+                            if (typeParameterDeclarations[j].symbol === node.symbol) {
+                                error(node.name, ts.Diagnostics.Duplicate_identifier_0, ts.declarationNameToString(node.name));
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        function checkTypeParametersNotReferenced(root, typeParameters, index) {
+            visit(root);
+            function visit(node) {
+                if (node.kind === 169) {
+                    var type = getTypeFromTypeReference(node);
+                    if (type.flags & 262144) {
+                        for (var i = index; i < typeParameters.length; i++) {
+                            if (type.symbol === getSymbolOfNode(typeParameters[i])) {
+                                error(node, ts.Diagnostics.Type_parameter_defaults_can_only_reference_previously_declared_type_parameters);
+                            }
+                        }
+                    }
+                }
+                ts.forEachChild(node, visit);
+            }
+        }
+        function checkTypeParameterListsIdentical(symbol) {
+            if (symbol.declarations.length === 1) {
+                return;
+            }
+            var links = getSymbolLinks(symbol);
+            if (!links.typeParametersChecked) {
+                links.typeParametersChecked = true;
+                var declarations = getClassOrInterfaceDeclarationsOfSymbol(symbol);
+                if (declarations.length <= 1) {
+                    return;
+                }
+                var type = getDeclaredTypeOfSymbol(symbol);
+                if (!areTypeParametersIdentical(declarations, type.localTypeParameters)) {
+                    var name = symbolToString(symbol);
+                    for (var _i = 0, declarations_6 = declarations; _i < declarations_6.length; _i++) {
+                        var declaration = declarations_6[_i];
+                        error(declaration.name, ts.Diagnostics.All_declarations_of_0_must_have_identical_type_parameters, name);
+                    }
+                }
+            }
+        }
+        function areTypeParametersIdentical(declarations, targetParameters) {
+            var maxTypeArgumentCount = ts.length(targetParameters);
+            var minTypeArgumentCount = getMinTypeArgumentCount(targetParameters);
+            for (var _i = 0, declarations_7 = declarations; _i < declarations_7.length; _i++) {
+                var declaration = declarations_7[_i];
+                var sourceParameters = ts.getEffectiveTypeParameterDeclarations(declaration);
+                var numTypeParameters = sourceParameters.length;
+                if (numTypeParameters < minTypeArgumentCount || numTypeParameters > maxTypeArgumentCount) {
+                    return false;
+                }
+                for (var i = 0; i < numTypeParameters; i++) {
+                    var source = sourceParameters[i];
+                    var target = targetParameters[i];
+                    if (source.name.escapedText !== target.symbol.escapedName) {
+                        return false;
+                    }
+                    var constraint = ts.getEffectiveConstraintOfTypeParameter(source);
+                    var sourceConstraint = constraint && getTypeFromTypeNode(constraint);
+                    var targetConstraint = getConstraintOfTypeParameter(target);
+                    if (sourceConstraint && targetConstraint && !isTypeIdenticalTo(sourceConstraint, targetConstraint)) {
+                        return false;
+                    }
+                    var sourceDefault = source.default && getTypeFromTypeNode(source.default);
+                    var targetDefault = getDefaultFromTypeParameter(target);
+                    if (sourceDefault && targetDefault && !isTypeIdenticalTo(sourceDefault, targetDefault)) {
+                        return false;
+                    }
+                }
+            }
+            return true;
+        }
+        function checkClassExpression(node) {
+            checkClassLikeDeclaration(node);
+            checkNodeDeferred(node);
+            return getTypeOfSymbol(getSymbolOfNode(node));
+        }
+        function checkClassExpressionDeferred(node) {
+            ts.forEach(node.members, checkSourceElement);
+            registerForUnusedIdentifiersCheck(node);
+        }
+        function checkClassDeclaration(node) {
+            if (!node.name && !ts.hasModifier(node, 512)) {
+                grammarErrorOnFirstToken(node, ts.Diagnostics.A_class_declaration_without_the_default_modifier_must_have_a_name);
+            }
+            checkClassLikeDeclaration(node);
+            ts.forEach(node.members, checkSourceElement);
+            registerForUnusedIdentifiersCheck(node);
+        }
+        function checkClassLikeDeclaration(node) {
+            checkGrammarClassLikeDeclaration(node);
+            checkDecorators(node);
+            if (node.name) {
+                checkTypeNameIsReserved(node.name, ts.Diagnostics.Class_name_cannot_be_0);
+                checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
+                checkCollisionWithGlobalPromiseInGeneratedCode(node, node.name);
+                if (!(node.flags & 8388608)) {
+                    checkClassNameCollisionWithObject(node.name);
+                }
+            }
+            checkTypeParameters(ts.getEffectiveTypeParameterDeclarations(node));
+            checkExportsOnMergedDeclarations(node);
+            var symbol = getSymbolOfNode(node);
+            var type = getDeclaredTypeOfSymbol(symbol);
+            var typeWithThis = getTypeWithThisArgument(type);
+            var staticType = getTypeOfSymbol(symbol);
+            checkTypeParameterListsIdentical(symbol);
+            checkClassForDuplicateDeclarations(node);
+            if (!(node.flags & 8388608)) {
+                checkClassForStaticPropertyNameConflicts(node);
+            }
+            var baseTypeNode = ts.getEffectiveBaseTypeNode(node);
+            if (baseTypeNode) {
+                ts.forEach(baseTypeNode.typeArguments, checkSourceElement);
+                if (languageVersion < 2) {
+                    checkExternalEmitHelpers(baseTypeNode.parent, 1);
+                }
+                var extendsNode = ts.getClassExtendsHeritageElement(node);
+                if (extendsNode && extendsNode !== baseTypeNode) {
+                    checkExpression(extendsNode.expression);
+                }
+                var baseTypes = getBaseTypes(type);
+                if (baseTypes.length && produceDiagnostics) {
+                    var baseType_1 = baseTypes[0];
+                    var baseConstructorType = getBaseConstructorTypeOfClass(type);
+                    var staticBaseType = getApparentType(baseConstructorType);
+                    checkBaseTypeAccessibility(staticBaseType, baseTypeNode);
+                    checkSourceElement(baseTypeNode.expression);
+                    if (ts.some(baseTypeNode.typeArguments)) {
+                        ts.forEach(baseTypeNode.typeArguments, checkSourceElement);
+                        for (var _i = 0, _a = getConstructorsForTypeArguments(staticBaseType, baseTypeNode.typeArguments, baseTypeNode); _i < _a.length; _i++) {
+                            var constructor = _a[_i];
+                            if (!checkTypeArgumentConstraints(baseTypeNode, constructor.typeParameters)) {
+                                break;
+                            }
+                        }
+                    }
+                    var baseWithThis = getTypeWithThisArgument(baseType_1, type.thisType);
+                    if (!checkTypeAssignableTo(typeWithThis, baseWithThis, undefined)) {
+                        issueMemberSpecificError(node, typeWithThis, baseWithThis, ts.Diagnostics.Class_0_incorrectly_extends_base_class_1);
+                    }
+                    else {
+                        checkTypeAssignableTo(staticType, getTypeWithoutSignatures(staticBaseType), node.name || node, ts.Diagnostics.Class_static_side_0_incorrectly_extends_base_class_static_side_1);
+                    }
+                    if (baseConstructorType.flags & 8650752 && !isMixinConstructorType(staticType)) {
+                        error(node.name || node, ts.Diagnostics.A_mixin_class_must_have_a_constructor_with_a_single_rest_parameter_of_type_any);
+                    }
+                    if (!(staticBaseType.symbol && staticBaseType.symbol.flags & 32) && !(baseConstructorType.flags & 8650752)) {
+                        var constructors = getInstantiatedConstructorsForTypeArguments(staticBaseType, baseTypeNode.typeArguments, baseTypeNode);
+                        if (ts.forEach(constructors, function (sig) { return !isJSConstructor(sig.declaration) && !isTypeIdenticalTo(getReturnTypeOfSignature(sig), baseType_1); })) {
+                            error(baseTypeNode.expression, ts.Diagnostics.Base_constructors_must_all_have_the_same_return_type);
+                        }
+                    }
+                    checkKindsOfPropertyMemberOverrides(type, baseType_1);
+                }
+            }
+            var implementedTypeNodes = ts.getEffectiveImplementsTypeNodes(node);
+            if (implementedTypeNodes) {
+                for (var _b = 0, implementedTypeNodes_1 = implementedTypeNodes; _b < implementedTypeNodes_1.length; _b++) {
+                    var typeRefNode = implementedTypeNodes_1[_b];
+                    if (!ts.isEntityNameExpression(typeRefNode.expression)) {
+                        error(typeRefNode.expression, ts.Diagnostics.A_class_can_only_implement_an_identifier_Slashqualified_name_with_optional_type_arguments);
+                    }
+                    checkTypeReferenceNode(typeRefNode);
+                    if (produceDiagnostics) {
+                        var t = getReducedType(getTypeFromTypeNode(typeRefNode));
+                        if (t !== errorType) {
+                            if (isValidBaseType(t)) {
+                                var genericDiag = t.symbol && t.symbol.flags & 32 ?
+                                    ts.Diagnostics.Class_0_incorrectly_implements_class_1_Did_you_mean_to_extend_1_and_inherit_its_members_as_a_subclass :
+                                    ts.Diagnostics.Class_0_incorrectly_implements_interface_1;
+                                var baseWithThis = getTypeWithThisArgument(t, type.thisType);
+                                if (!checkTypeAssignableTo(typeWithThis, baseWithThis, undefined)) {
+                                    issueMemberSpecificError(node, typeWithThis, baseWithThis, genericDiag);
+                                }
+                            }
+                            else {
+                                error(typeRefNode, ts.Diagnostics.A_class_can_only_implement_an_object_type_or_intersection_of_object_types_with_statically_known_members);
+                            }
+                        }
+                    }
+                }
+            }
+            if (produceDiagnostics) {
+                checkIndexConstraints(type);
+                checkTypeForDuplicateIndexSignatures(node);
+                checkPropertyInitialization(node);
+            }
+        }
+        function issueMemberSpecificError(node, typeWithThis, baseWithThis, broadDiag) {
+            var issuedMemberError = false;
+            var _loop_19 = function (member) {
+                if (ts.hasStaticModifier(member)) {
+                    return "continue";
+                }
+                var declaredProp = member.name && getSymbolAtLocation(member.name) || getSymbolAtLocation(member);
+                if (declaredProp) {
+                    var prop = getPropertyOfType(typeWithThis, declaredProp.escapedName);
+                    var baseProp = getPropertyOfType(baseWithThis, declaredProp.escapedName);
+                    if (prop && baseProp) {
+                        var rootChain = function () { return ts.chainDiagnosticMessages(undefined, ts.Diagnostics.Property_0_in_type_1_is_not_assignable_to_the_same_property_in_base_type_2, symbolToString(declaredProp), typeToString(typeWithThis), typeToString(baseWithThis)); };
+                        if (!checkTypeAssignableTo(getTypeOfSymbol(prop), getTypeOfSymbol(baseProp), member.name || member, undefined, rootChain)) {
+                            issuedMemberError = true;
+                        }
+                    }
+                }
+            };
+            for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
+                var member = _a[_i];
+                _loop_19(member);
+            }
+            if (!issuedMemberError) {
+                checkTypeAssignableTo(typeWithThis, baseWithThis, node.name || node, broadDiag);
+            }
+        }
+        function checkBaseTypeAccessibility(type, node) {
+            var signatures = getSignaturesOfType(type, 1);
+            if (signatures.length) {
+                var declaration = signatures[0].declaration;
+                if (declaration && ts.hasModifier(declaration, 8)) {
+                    var typeClassDeclaration = ts.getClassLikeDeclarationOfSymbol(type.symbol);
+                    if (!isNodeWithinClass(node, typeClassDeclaration)) {
+                        error(node, ts.Diagnostics.Cannot_extend_a_class_0_Class_constructor_is_marked_as_private, getFullyQualifiedName(type.symbol));
+                    }
+                }
+            }
+        }
+        function getTargetSymbol(s) {
+            return ts.getCheckFlags(s) & 1 ? s.target : s;
+        }
+        function getClassOrInterfaceDeclarationsOfSymbol(symbol) {
+            return ts.filter(symbol.declarations, function (d) {
+                return d.kind === 245 || d.kind === 246;
+            });
+        }
+        function checkKindsOfPropertyMemberOverrides(type, baseType) {
+            var baseProperties = getPropertiesOfType(baseType);
+            basePropertyCheck: for (var _i = 0, baseProperties_1 = baseProperties; _i < baseProperties_1.length; _i++) {
+                var baseProperty = baseProperties_1[_i];
+                var base = getTargetSymbol(baseProperty);
+                if (base.flags & 4194304) {
+                    continue;
+                }
+                var baseSymbol = getPropertyOfObjectType(type, base.escapedName);
+                if (!baseSymbol) {
+                    continue;
+                }
+                var derived = getTargetSymbol(baseSymbol);
+                var baseDeclarationFlags = ts.getDeclarationModifierFlagsFromSymbol(base);
+                ts.Debug.assert(!!derived, "derived should point to something, even if it is the base class' declaration.");
+                if (derived === base) {
+                    var derivedClassDecl = ts.getClassLikeDeclarationOfSymbol(type.symbol);
+                    if (baseDeclarationFlags & 128 && (!derivedClassDecl || !ts.hasModifier(derivedClassDecl, 128))) {
+                        for (var _a = 0, _b = getBaseTypes(type); _a < _b.length; _a++) {
+                            var otherBaseType = _b[_a];
+                            if (otherBaseType === baseType)
+                                continue;
+                            var baseSymbol_1 = getPropertyOfObjectType(otherBaseType, base.escapedName);
+                            var derivedElsewhere = baseSymbol_1 && getTargetSymbol(baseSymbol_1);
+                            if (derivedElsewhere && derivedElsewhere !== base) {
+                                continue basePropertyCheck;
+                            }
+                        }
+                        if (derivedClassDecl.kind === 214) {
+                            error(derivedClassDecl, ts.Diagnostics.Non_abstract_class_expression_does_not_implement_inherited_abstract_member_0_from_class_1, symbolToString(baseProperty), typeToString(baseType));
+                        }
+                        else {
+                            error(derivedClassDecl, ts.Diagnostics.Non_abstract_class_0_does_not_implement_inherited_abstract_member_1_from_class_2, typeToString(type), symbolToString(baseProperty), typeToString(baseType));
+                        }
+                    }
+                }
+                else {
+                    var derivedDeclarationFlags = ts.getDeclarationModifierFlagsFromSymbol(derived);
+                    if (baseDeclarationFlags & 8 || derivedDeclarationFlags & 8) {
+                        continue;
+                    }
+                    var errorMessage = void 0;
+                    var basePropertyFlags = base.flags & 98308;
+                    var derivedPropertyFlags = derived.flags & 98308;
+                    if (basePropertyFlags && derivedPropertyFlags) {
+                        if (!compilerOptions.useDefineForClassFields
+                            || baseDeclarationFlags & 128 && !(base.valueDeclaration && ts.isPropertyDeclaration(base.valueDeclaration) && base.valueDeclaration.initializer)
+                            || base.valueDeclaration && base.valueDeclaration.parent.kind === 246
+                            || derived.valueDeclaration && ts.isBinaryExpression(derived.valueDeclaration)) {
+                            continue;
+                        }
+                        var overriddenInstanceProperty = basePropertyFlags !== 4 && derivedPropertyFlags === 4;
+                        var overriddenInstanceAccessor = basePropertyFlags === 4 && derivedPropertyFlags !== 4;
+                        if (overriddenInstanceProperty || overriddenInstanceAccessor) {
+                            var errorMessage_1 = overriddenInstanceProperty ?
+                                ts.Diagnostics._0_is_defined_as_an_accessor_in_class_1_but_is_overridden_here_in_2_as_an_instance_property :
+                                ts.Diagnostics._0_is_defined_as_a_property_in_class_1_but_is_overridden_here_in_2_as_an_accessor;
+                            error(ts.getNameOfDeclaration(derived.valueDeclaration) || derived.valueDeclaration, errorMessage_1, symbolToString(base), typeToString(baseType), typeToString(type));
+                        }
+                        else {
+                            var uninitialized = ts.find(derived.declarations, function (d) { return d.kind === 159 && !d.initializer; });
+                            if (uninitialized
+                                && !(derived.flags & 33554432)
+                                && !(baseDeclarationFlags & 128)
+                                && !(derivedDeclarationFlags & 128)
+                                && !derived.declarations.some(function (d) { return !!(d.flags & 8388608); })) {
+                                var constructor = findConstructorDeclaration(ts.getClassLikeDeclarationOfSymbol(type.symbol));
+                                var propName = uninitialized.name;
+                                if (uninitialized.exclamationToken
+                                    || !constructor
+                                    || !ts.isIdentifier(propName)
+                                    || !strictNullChecks
+                                    || !isPropertyInitializedInConstructor(propName, type, constructor)) {
+                                    var errorMessage_2 = ts.Diagnostics.Property_0_will_overwrite_the_base_property_in_1_If_this_is_intentional_add_an_initializer_Otherwise_add_a_declare_modifier_or_remove_the_redundant_declaration;
+                                    error(ts.getNameOfDeclaration(derived.valueDeclaration) || derived.valueDeclaration, errorMessage_2, symbolToString(base), typeToString(baseType));
+                                }
+                            }
+                        }
+                        continue;
+                    }
+                    else if (isPrototypeProperty(base)) {
+                        if (isPrototypeProperty(derived) || derived.flags & 4) {
+                            continue;
+                        }
+                        else {
+                            ts.Debug.assert(!!(derived.flags & 98304));
+                            errorMessage = ts.Diagnostics.Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_accessor;
+                        }
+                    }
+                    else if (base.flags & 98304) {
+                        errorMessage = ts.Diagnostics.Class_0_defines_instance_member_accessor_1_but_extended_class_2_defines_it_as_instance_member_function;
+                    }
+                    else {
+                        errorMessage = ts.Diagnostics.Class_0_defines_instance_member_property_1_but_extended_class_2_defines_it_as_instance_member_function;
+                    }
+                    error(ts.getNameOfDeclaration(derived.valueDeclaration) || derived.valueDeclaration, errorMessage, typeToString(baseType), symbolToString(base), typeToString(type));
+                }
+            }
+        }
+        function getNonInterhitedProperties(type, baseTypes, properties) {
+            if (!ts.length(baseTypes)) {
+                return properties;
+            }
+            var seen = ts.createUnderscoreEscapedMap();
+            ts.forEach(properties, function (p) { seen.set(p.escapedName, p); });
+            for (var _i = 0, baseTypes_2 = baseTypes; _i < baseTypes_2.length; _i++) {
+                var base = baseTypes_2[_i];
+                var properties_5 = getPropertiesOfType(getTypeWithThisArgument(base, type.thisType));
+                for (var _a = 0, properties_4 = properties_5; _a < properties_4.length; _a++) {
+                    var prop = properties_4[_a];
+                    var existing = seen.get(prop.escapedName);
+                    if (existing && !isPropertyIdenticalTo(existing, prop)) {
+                        seen.delete(prop.escapedName);
+                    }
+                }
+            }
+            return ts.arrayFrom(seen.values());
+        }
+        function checkInheritedPropertiesAreIdentical(type, typeNode) {
+            var baseTypes = getBaseTypes(type);
+            if (baseTypes.length < 2) {
+                return true;
+            }
+            var seen = ts.createUnderscoreEscapedMap();
+            ts.forEach(resolveDeclaredMembers(type).declaredProperties, function (p) { seen.set(p.escapedName, { prop: p, containingType: type }); });
+            var ok = true;
+            for (var _i = 0, baseTypes_3 = baseTypes; _i < baseTypes_3.length; _i++) {
+                var base = baseTypes_3[_i];
+                var properties = getPropertiesOfType(getTypeWithThisArgument(base, type.thisType));
+                for (var _a = 0, properties_6 = properties; _a < properties_6.length; _a++) {
+                    var prop = properties_6[_a];
+                    var existing = seen.get(prop.escapedName);
+                    if (!existing) {
+                        seen.set(prop.escapedName, { prop: prop, containingType: base });
+                    }
+                    else {
+                        var isInheritedProperty = existing.containingType !== type;
+                        if (isInheritedProperty && !isPropertyIdenticalTo(existing.prop, prop)) {
+                            ok = false;
+                            var typeName1 = typeToString(existing.containingType);
+                            var typeName2 = typeToString(base);
+                            var errorInfo = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.Named_property_0_of_types_1_and_2_are_not_identical, symbolToString(prop), typeName1, typeName2);
+                            errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.Interface_0_cannot_simultaneously_extend_types_1_and_2, typeToString(type), typeName1, typeName2);
+                            diagnostics.add(ts.createDiagnosticForNodeFromMessageChain(typeNode, errorInfo));
+                        }
+                    }
+                }
+            }
+            return ok;
+        }
+        function checkPropertyInitialization(node) {
+            if (!strictNullChecks || !strictPropertyInitialization || node.flags & 8388608) {
+                return;
+            }
+            var constructor = findConstructorDeclaration(node);
+            for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
+                var member = _a[_i];
+                if (ts.getModifierFlags(member) & 2) {
+                    continue;
+                }
+                if (isInstancePropertyWithoutInitializer(member)) {
+                    var propName = member.name;
+                    if (ts.isIdentifier(propName) || ts.isPrivateIdentifier(propName)) {
+                        var type = getTypeOfSymbol(getSymbolOfNode(member));
+                        if (!(type.flags & 3 || getFalsyFlags(type) & 32768)) {
+                            if (!constructor || !isPropertyInitializedInConstructor(propName, type, constructor)) {
+                                error(member.name, ts.Diagnostics.Property_0_has_no_initializer_and_is_not_definitely_assigned_in_the_constructor, ts.declarationNameToString(propName));
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        function isInstancePropertyWithoutInitializer(node) {
+            return node.kind === 159 &&
+                !ts.hasModifier(node, 32 | 128) &&
+                !node.exclamationToken &&
+                !node.initializer;
+        }
+        function isPropertyInitializedInConstructor(propName, propType, constructor) {
+            var reference = ts.createPropertyAccess(ts.createThis(), propName);
+            reference.expression.parent = reference;
+            reference.parent = constructor;
+            reference.flowNode = constructor.returnFlowNode;
+            var flowType = getFlowTypeOfReference(reference, propType, getOptionalType(propType));
+            return !(getFalsyFlags(flowType) & 32768);
+        }
+        function checkInterfaceDeclaration(node) {
+            if (!checkGrammarDecoratorsAndModifiers(node))
+                checkGrammarInterfaceDeclaration(node);
+            checkTypeParameters(node.typeParameters);
+            if (produceDiagnostics) {
+                checkTypeNameIsReserved(node.name, ts.Diagnostics.Interface_name_cannot_be_0);
+                checkExportsOnMergedDeclarations(node);
+                var symbol = getSymbolOfNode(node);
+                checkTypeParameterListsIdentical(symbol);
+                var firstInterfaceDecl = ts.getDeclarationOfKind(symbol, 246);
+                if (node === firstInterfaceDecl) {
+                    var type = getDeclaredTypeOfSymbol(symbol);
+                    var typeWithThis = getTypeWithThisArgument(type);
+                    if (checkInheritedPropertiesAreIdentical(type, node.name)) {
+                        for (var _i = 0, _a = getBaseTypes(type); _i < _a.length; _i++) {
+                            var baseType = _a[_i];
+                            checkTypeAssignableTo(typeWithThis, getTypeWithThisArgument(baseType, type.thisType), node.name, ts.Diagnostics.Interface_0_incorrectly_extends_interface_1);
+                        }
+                        checkIndexConstraints(type);
+                    }
+                }
+                checkObjectTypeForDuplicateDeclarations(node);
+            }
+            ts.forEach(ts.getInterfaceBaseTypeNodes(node), function (heritageElement) {
+                if (!ts.isEntityNameExpression(heritageElement.expression)) {
+                    error(heritageElement.expression, ts.Diagnostics.An_interface_can_only_extend_an_identifier_Slashqualified_name_with_optional_type_arguments);
+                }
+                checkTypeReferenceNode(heritageElement);
+            });
+            ts.forEach(node.members, checkSourceElement);
+            if (produceDiagnostics) {
+                checkTypeForDuplicateIndexSignatures(node);
+                registerForUnusedIdentifiersCheck(node);
+            }
+        }
+        function checkTypeAliasDeclaration(node) {
+            checkGrammarDecoratorsAndModifiers(node);
+            checkTypeNameIsReserved(node.name, ts.Diagnostics.Type_alias_name_cannot_be_0);
+            checkExportsOnMergedDeclarations(node);
+            checkTypeParameters(node.typeParameters);
+            checkSourceElement(node.type);
+            registerForUnusedIdentifiersCheck(node);
+        }
+        function computeEnumMemberValues(node) {
+            var nodeLinks = getNodeLinks(node);
+            if (!(nodeLinks.flags & 16384)) {
+                nodeLinks.flags |= 16384;
+                var autoValue = 0;
+                for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
+                    var member = _a[_i];
+                    var value = computeMemberValue(member, autoValue);
+                    getNodeLinks(member).enumMemberValue = value;
+                    autoValue = typeof value === "number" ? value + 1 : undefined;
+                }
+            }
+        }
+        function computeMemberValue(member, autoValue) {
+            if (ts.isComputedNonLiteralName(member.name)) {
+                error(member.name, ts.Diagnostics.Computed_property_names_are_not_allowed_in_enums);
+            }
+            else {
+                var text = ts.getTextOfPropertyName(member.name);
+                if (isNumericLiteralName(text) && !isInfinityOrNaNString(text)) {
+                    error(member.name, ts.Diagnostics.An_enum_member_cannot_have_a_numeric_name);
+                }
+            }
+            if (member.initializer) {
+                return computeConstantValue(member);
+            }
+            if (member.parent.flags & 8388608 && !ts.isEnumConst(member.parent) && getEnumKind(getSymbolOfNode(member.parent)) === 0) {
+                return undefined;
+            }
+            if (autoValue !== undefined) {
+                return autoValue;
+            }
+            error(member.name, ts.Diagnostics.Enum_member_must_have_initializer);
+            return undefined;
+        }
+        function computeConstantValue(member) {
+            var enumKind = getEnumKind(getSymbolOfNode(member.parent));
+            var isConstEnum = ts.isEnumConst(member.parent);
+            var initializer = member.initializer;
+            var value = enumKind === 1 && !isLiteralEnumMember(member) ? undefined : evaluate(initializer);
+            if (value !== undefined) {
+                if (isConstEnum && typeof value === "number" && !isFinite(value)) {
+                    error(initializer, isNaN(value) ?
+                        ts.Diagnostics.const_enum_member_initializer_was_evaluated_to_disallowed_value_NaN :
+                        ts.Diagnostics.const_enum_member_initializer_was_evaluated_to_a_non_finite_value);
+                }
+            }
+            else if (enumKind === 1) {
+                error(initializer, ts.Diagnostics.Computed_values_are_not_permitted_in_an_enum_with_string_valued_members);
+                return 0;
+            }
+            else if (isConstEnum) {
+                error(initializer, ts.Diagnostics.const_enum_member_initializers_can_only_contain_literal_values_and_other_computed_enum_values);
+            }
+            else if (member.parent.flags & 8388608) {
+                error(initializer, ts.Diagnostics.In_ambient_enum_declarations_member_initializer_must_be_constant_expression);
+            }
+            else {
+                var source = checkExpression(initializer);
+                if (!isTypeAssignableToKind(source, 296)) {
+                    error(initializer, ts.Diagnostics.Only_numeric_enums_can_have_computed_members_but_this_expression_has_type_0_If_you_do_not_need_exhaustiveness_checks_consider_using_an_object_literal_instead, typeToString(source));
+                }
+                else {
+                    checkTypeAssignableTo(source, getDeclaredTypeOfSymbol(getSymbolOfNode(member.parent)), initializer, undefined);
+                }
+            }
+            return value;
+            function evaluate(expr) {
+                switch (expr.kind) {
+                    case 207:
+                        var value_2 = evaluate(expr.operand);
+                        if (typeof value_2 === "number") {
+                            switch (expr.operator) {
+                                case 39: return value_2;
+                                case 40: return -value_2;
+                                case 54: return ~value_2;
+                            }
+                        }
+                        break;
+                    case 209:
+                        var left = evaluate(expr.left);
+                        var right = evaluate(expr.right);
+                        if (typeof left === "number" && typeof right === "number") {
+                            switch (expr.operatorToken.kind) {
+                                case 51: return left | right;
+                                case 50: return left & right;
+                                case 48: return left >> right;
+                                case 49: return left >>> right;
+                                case 47: return left << right;
+                                case 52: return left ^ right;
+                                case 41: return left * right;
+                                case 43: return left / right;
+                                case 39: return left + right;
+                                case 40: return left - right;
+                                case 44: return left % right;
+                                case 42: return Math.pow(left, right);
+                            }
+                        }
+                        else if (typeof left === "string" && typeof right === "string" && expr.operatorToken.kind === 39) {
+                            return left + right;
+                        }
+                        break;
+                    case 10:
+                    case 14:
+                        return expr.text;
+                    case 8:
+                        checkGrammarNumericLiteral(expr);
+                        return +expr.text;
+                    case 200:
+                        return evaluate(expr.expression);
+                    case 75:
+                        var identifier = expr;
+                        if (isInfinityOrNaNString(identifier.escapedText)) {
+                            return +(identifier.escapedText);
+                        }
+                        return ts.nodeIsMissing(expr) ? 0 : evaluateEnumMember(expr, getSymbolOfNode(member.parent), identifier.escapedText);
+                    case 195:
+                    case 194:
+                        var ex = expr;
+                        if (isConstantMemberAccess(ex)) {
+                            var type = getTypeOfExpression(ex.expression);
+                            if (type.symbol && type.symbol.flags & 384) {
+                                var name = void 0;
+                                if (ex.kind === 194) {
+                                    name = ex.name.escapedText;
+                                }
+                                else {
+                                    name = ts.escapeLeadingUnderscores(ts.cast(ex.argumentExpression, ts.isLiteralExpression).text);
+                                }
+                                return evaluateEnumMember(expr, type.symbol, name);
+                            }
+                        }
+                        break;
+                }
+                return undefined;
+            }
+            function evaluateEnumMember(expr, enumSymbol, name) {
+                var memberSymbol = enumSymbol.exports.get(name);
+                if (memberSymbol) {
+                    var declaration = memberSymbol.valueDeclaration;
+                    if (declaration !== member) {
+                        if (isBlockScopedNameDeclaredBeforeUse(declaration, member)) {
+                            return getEnumMemberValue(declaration);
+                        }
+                        error(expr, ts.Diagnostics.A_member_initializer_in_a_enum_declaration_cannot_reference_members_declared_after_it_including_members_defined_in_other_enums);
+                        return 0;
+                    }
+                    else {
+                        error(expr, ts.Diagnostics.Property_0_is_used_before_being_assigned, symbolToString(memberSymbol));
+                    }
+                }
+                return undefined;
+            }
+        }
+        function isConstantMemberAccess(node) {
+            return node.kind === 75 ||
+                node.kind === 194 && isConstantMemberAccess(node.expression) ||
+                node.kind === 195 && isConstantMemberAccess(node.expression) &&
+                    ts.isStringLiteralLike(node.argumentExpression);
+        }
+        function checkEnumDeclaration(node) {
+            if (!produceDiagnostics) {
+                return;
+            }
+            checkGrammarDecoratorsAndModifiers(node);
+            checkTypeNameIsReserved(node.name, ts.Diagnostics.Enum_name_cannot_be_0);
+            checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
+            checkCollisionWithGlobalPromiseInGeneratedCode(node, node.name);
+            checkExportsOnMergedDeclarations(node);
+            node.members.forEach(checkEnumMember);
+            computeEnumMemberValues(node);
+            var enumSymbol = getSymbolOfNode(node);
+            var firstDeclaration = ts.getDeclarationOfKind(enumSymbol, node.kind);
+            if (node === firstDeclaration) {
+                if (enumSymbol.declarations.length > 1) {
+                    var enumIsConst_1 = ts.isEnumConst(node);
+                    ts.forEach(enumSymbol.declarations, function (decl) {
+                        if (ts.isEnumDeclaration(decl) && ts.isEnumConst(decl) !== enumIsConst_1) {
+                            error(ts.getNameOfDeclaration(decl), ts.Diagnostics.Enum_declarations_must_all_be_const_or_non_const);
+                        }
+                    });
+                }
+                var seenEnumMissingInitialInitializer_1 = false;
+                ts.forEach(enumSymbol.declarations, function (declaration) {
+                    if (declaration.kind !== 248) {
+                        return false;
+                    }
+                    var enumDeclaration = declaration;
+                    if (!enumDeclaration.members.length) {
+                        return false;
+                    }
+                    var firstEnumMember = enumDeclaration.members[0];
+                    if (!firstEnumMember.initializer) {
+                        if (seenEnumMissingInitialInitializer_1) {
+                            error(firstEnumMember.name, ts.Diagnostics.In_an_enum_with_multiple_declarations_only_one_declaration_can_omit_an_initializer_for_its_first_enum_element);
+                        }
+                        else {
+                            seenEnumMissingInitialInitializer_1 = true;
+                        }
+                    }
+                });
+            }
+        }
+        function checkEnumMember(node) {
+            if (ts.isPrivateIdentifier(node.name)) {
+                error(node, ts.Diagnostics.An_enum_member_cannot_be_named_with_a_private_identifier);
+            }
+        }
+        function getFirstNonAmbientClassOrFunctionDeclaration(symbol) {
+            var declarations = symbol.declarations;
+            for (var _i = 0, declarations_8 = declarations; _i < declarations_8.length; _i++) {
+                var declaration = declarations_8[_i];
+                if ((declaration.kind === 245 ||
+                    (declaration.kind === 244 && ts.nodeIsPresent(declaration.body))) &&
+                    !(declaration.flags & 8388608)) {
+                    return declaration;
+                }
+            }
+            return undefined;
+        }
+        function inSameLexicalScope(node1, node2) {
+            var container1 = ts.getEnclosingBlockScopeContainer(node1);
+            var container2 = ts.getEnclosingBlockScopeContainer(node2);
+            if (isGlobalSourceFile(container1)) {
+                return isGlobalSourceFile(container2);
+            }
+            else if (isGlobalSourceFile(container2)) {
+                return false;
+            }
+            else {
+                return container1 === container2;
+            }
+        }
+        function checkModuleDeclaration(node) {
+            if (produceDiagnostics) {
+                var isGlobalAugmentation = ts.isGlobalScopeAugmentation(node);
+                var inAmbientContext = node.flags & 8388608;
+                if (isGlobalAugmentation && !inAmbientContext) {
+                    error(node.name, ts.Diagnostics.Augmentations_for_the_global_scope_should_have_declare_modifier_unless_they_appear_in_already_ambient_context);
+                }
+                var isAmbientExternalModule = ts.isAmbientModule(node);
+                var contextErrorMessage = isAmbientExternalModule
+                    ? ts.Diagnostics.An_ambient_module_declaration_is_only_allowed_at_the_top_level_in_a_file
+                    : ts.Diagnostics.A_namespace_declaration_is_only_allowed_in_a_namespace_or_module;
+                if (checkGrammarModuleElementContext(node, contextErrorMessage)) {
+                    return;
+                }
+                if (!checkGrammarDecoratorsAndModifiers(node)) {
+                    if (!inAmbientContext && node.name.kind === 10) {
+                        grammarErrorOnNode(node.name, ts.Diagnostics.Only_ambient_modules_can_use_quoted_names);
+                    }
+                }
+                if (ts.isIdentifier(node.name)) {
+                    checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
+                    checkCollisionWithGlobalPromiseInGeneratedCode(node, node.name);
+                }
+                checkExportsOnMergedDeclarations(node);
+                var symbol = getSymbolOfNode(node);
+                if (symbol.flags & 512
+                    && !inAmbientContext
+                    && symbol.declarations.length > 1
+                    && isInstantiatedModule(node, !!compilerOptions.preserveConstEnums || !!compilerOptions.isolatedModules)) {
+                    var firstNonAmbientClassOrFunc = getFirstNonAmbientClassOrFunctionDeclaration(symbol);
+                    if (firstNonAmbientClassOrFunc) {
+                        if (ts.getSourceFileOfNode(node) !== ts.getSourceFileOfNode(firstNonAmbientClassOrFunc)) {
+                            error(node.name, ts.Diagnostics.A_namespace_declaration_cannot_be_in_a_different_file_from_a_class_or_function_with_which_it_is_merged);
+                        }
+                        else if (node.pos < firstNonAmbientClassOrFunc.pos) {
+                            error(node.name, ts.Diagnostics.A_namespace_declaration_cannot_be_located_prior_to_a_class_or_function_with_which_it_is_merged);
+                        }
+                    }
+                    var mergedClass = ts.getDeclarationOfKind(symbol, 245);
+                    if (mergedClass &&
+                        inSameLexicalScope(node, mergedClass)) {
+                        getNodeLinks(node).flags |= 32768;
+                    }
+                }
+                if (isAmbientExternalModule) {
+                    if (ts.isExternalModuleAugmentation(node)) {
+                        var checkBody = isGlobalAugmentation || (getSymbolOfNode(node).flags & 33554432);
+                        if (checkBody && node.body) {
+                            for (var _i = 0, _a = node.body.statements; _i < _a.length; _i++) {
+                                var statement = _a[_i];
+                                checkModuleAugmentationElement(statement, isGlobalAugmentation);
+                            }
+                        }
+                    }
+                    else if (isGlobalSourceFile(node.parent)) {
+                        if (isGlobalAugmentation) {
+                            error(node.name, ts.Diagnostics.Augmentations_for_the_global_scope_can_only_be_directly_nested_in_external_modules_or_ambient_module_declarations);
+                        }
+                        else if (ts.isExternalModuleNameRelative(ts.getTextOfIdentifierOrLiteral(node.name))) {
+                            error(node.name, ts.Diagnostics.Ambient_module_declaration_cannot_specify_relative_module_name);
+                        }
+                    }
+                    else {
+                        if (isGlobalAugmentation) {
+                            error(node.name, ts.Diagnostics.Augmentations_for_the_global_scope_can_only_be_directly_nested_in_external_modules_or_ambient_module_declarations);
+                        }
+                        else {
+                            error(node.name, ts.Diagnostics.Ambient_modules_cannot_be_nested_in_other_modules_or_namespaces);
+                        }
+                    }
+                }
+            }
+            if (node.body) {
+                checkSourceElement(node.body);
+                if (!ts.isGlobalScopeAugmentation(node)) {
+                    registerForUnusedIdentifiersCheck(node);
+                }
+            }
+        }
+        function checkModuleAugmentationElement(node, isGlobalAugmentation) {
+            switch (node.kind) {
+                case 225:
+                    for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
+                        var decl = _a[_i];
+                        checkModuleAugmentationElement(decl, isGlobalAugmentation);
+                    }
+                    break;
+                case 259:
+                case 260:
+                    grammarErrorOnFirstToken(node, ts.Diagnostics.Exports_and_export_assignments_are_not_permitted_in_module_augmentations);
+                    break;
+                case 253:
+                case 254:
+                    grammarErrorOnFirstToken(node, ts.Diagnostics.Imports_are_not_permitted_in_module_augmentations_Consider_moving_them_to_the_enclosing_external_module);
+                    break;
+                case 191:
+                case 242:
+                    var name = node.name;
+                    if (ts.isBindingPattern(name)) {
+                        for (var _b = 0, _c = name.elements; _b < _c.length; _b++) {
+                            var el = _c[_b];
+                            checkModuleAugmentationElement(el, isGlobalAugmentation);
+                        }
+                        break;
+                    }
+                case 245:
+                case 248:
+                case 244:
+                case 246:
+                case 249:
+                case 247:
+                    if (isGlobalAugmentation) {
+                        return;
+                    }
+                    var symbol = getSymbolOfNode(node);
+                    if (symbol) {
+                        var reportError = !(symbol.flags & 33554432);
+                        if (!reportError) {
+                            reportError = !!symbol.parent && ts.isExternalModuleAugmentation(symbol.parent.declarations[0]);
+                        }
+                    }
+                    break;
+            }
+        }
+        function getFirstNonModuleExportsIdentifier(node) {
+            switch (node.kind) {
+                case 75:
+                    return node;
+                case 153:
+                    do {
+                        node = node.left;
+                    } while (node.kind !== 75);
+                    return node;
+                case 194:
+                    do {
+                        if (ts.isModuleExportsAccessExpression(node.expression) && !ts.isPrivateIdentifier(node.name)) {
+                            return node.name;
+                        }
+                        node = node.expression;
+                    } while (node.kind !== 75);
+                    return node;
+            }
+        }
+        function checkExternalImportOrExportDeclaration(node) {
+            var moduleName = ts.getExternalModuleName(node);
+            if (!moduleName || ts.nodeIsMissing(moduleName)) {
+                return false;
+            }
+            if (!ts.isStringLiteral(moduleName)) {
+                error(moduleName, ts.Diagnostics.String_literal_expected);
+                return false;
+            }
+            var inAmbientExternalModule = node.parent.kind === 250 && ts.isAmbientModule(node.parent.parent);
+            if (node.parent.kind !== 290 && !inAmbientExternalModule) {
+                error(moduleName, node.kind === 260 ?
+                    ts.Diagnostics.Export_declarations_are_not_permitted_in_a_namespace :
+                    ts.Diagnostics.Import_declarations_in_a_namespace_cannot_reference_a_module);
+                return false;
+            }
+            if (inAmbientExternalModule && ts.isExternalModuleNameRelative(moduleName.text)) {
+                if (!isTopLevelInExternalModuleAugmentation(node)) {
+                    error(node, ts.Diagnostics.Import_or_export_declaration_in_an_ambient_module_declaration_cannot_reference_module_through_relative_module_name);
+                    return false;
+                }
+            }
+            return true;
+        }
+        function checkAliasSymbol(node) {
+            var symbol = getSymbolOfNode(node);
+            var target = resolveAlias(symbol);
+            var shouldSkipWithJSExpandoTargets = symbol.flags & 67108864;
+            if (!shouldSkipWithJSExpandoTargets && target !== unknownSymbol) {
+                symbol = getMergedSymbol(symbol.exportSymbol || symbol);
+                var excludedMeanings = (symbol.flags & (111551 | 1048576) ? 111551 : 0) |
+                    (symbol.flags & 788968 ? 788968 : 0) |
+                    (symbol.flags & 1920 ? 1920 : 0);
+                if (target.flags & excludedMeanings) {
+                    var message = node.kind === 263 ?
+                        ts.Diagnostics.Export_declaration_conflicts_with_exported_declaration_of_0 :
+                        ts.Diagnostics.Import_declaration_conflicts_with_local_declaration_of_0;
+                    error(node, message, symbolToString(symbol));
+                }
+                if (compilerOptions.isolatedModules
+                    && node.kind === 263
+                    && !node.parent.parent.isTypeOnly
+                    && !(target.flags & 111551)
+                    && !(node.flags & 8388608)) {
+                    error(node, ts.Diagnostics.Re_exporting_a_type_when_the_isolatedModules_flag_is_provided_requires_using_export_type);
+                }
+            }
+        }
+        function checkImportBinding(node) {
+            checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
+            checkCollisionWithGlobalPromiseInGeneratedCode(node, node.name);
+            checkAliasSymbol(node);
+        }
+        function checkImportDeclaration(node) {
+            if (checkGrammarModuleElementContext(node, ts.Diagnostics.An_import_declaration_can_only_be_used_in_a_namespace_or_module)) {
+                return;
+            }
+            if (!checkGrammarDecoratorsAndModifiers(node) && ts.hasModifiers(node)) {
+                grammarErrorOnFirstToken(node, ts.Diagnostics.An_import_declaration_cannot_have_modifiers);
+            }
+            if (checkExternalImportOrExportDeclaration(node)) {
+                var importClause = node.importClause;
+                if (importClause && !checkGrammarImportClause(importClause)) {
+                    if (importClause.name) {
+                        checkImportBinding(importClause);
+                    }
+                    if (importClause.namedBindings) {
+                        if (importClause.namedBindings.kind === 256) {
+                            checkImportBinding(importClause.namedBindings);
+                        }
+                        else {
+                            var moduleExisted = resolveExternalModuleName(node, node.moduleSpecifier);
+                            if (moduleExisted) {
+                                ts.forEach(importClause.namedBindings.elements, checkImportBinding);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        function checkImportEqualsDeclaration(node) {
+            if (checkGrammarModuleElementContext(node, ts.Diagnostics.An_import_declaration_can_only_be_used_in_a_namespace_or_module)) {
+                return;
+            }
+            checkGrammarDecoratorsAndModifiers(node);
+            if (ts.isInternalModuleImportEqualsDeclaration(node) || checkExternalImportOrExportDeclaration(node)) {
+                checkImportBinding(node);
+                if (ts.hasModifier(node, 1)) {
+                    markExportAsReferenced(node);
+                }
+                if (node.moduleReference.kind !== 265) {
+                    var target = resolveAlias(getSymbolOfNode(node));
+                    if (target !== unknownSymbol) {
+                        if (target.flags & 111551) {
+                            var moduleName = ts.getFirstIdentifier(node.moduleReference);
+                            if (!(resolveEntityName(moduleName, 111551 | 1920).flags & 1920)) {
+                                error(moduleName, ts.Diagnostics.Module_0_is_hidden_by_a_local_declaration_with_the_same_name, ts.declarationNameToString(moduleName));
+                            }
+                        }
+                        if (target.flags & 788968) {
+                            checkTypeNameIsReserved(node.name, ts.Diagnostics.Import_name_cannot_be_0);
+                        }
+                    }
+                }
+                else {
+                    if (moduleKind >= ts.ModuleKind.ES2015 && !(node.flags & 8388608)) {
+                        grammarErrorOnNode(node, ts.Diagnostics.Import_assignment_cannot_be_used_when_targeting_ECMAScript_modules_Consider_using_import_Asterisk_as_ns_from_mod_import_a_from_mod_import_d_from_mod_or_another_module_format_instead);
+                    }
+                }
+            }
+        }
+        function checkExportDeclaration(node) {
+            if (checkGrammarModuleElementContext(node, ts.Diagnostics.An_export_declaration_can_only_be_used_in_a_module)) {
+                return;
+            }
+            if (!checkGrammarDecoratorsAndModifiers(node) && ts.hasModifiers(node)) {
+                grammarErrorOnFirstToken(node, ts.Diagnostics.An_export_declaration_cannot_have_modifiers);
+            }
+            if (node.moduleSpecifier && node.exportClause && ts.isNamedExports(node.exportClause) && ts.length(node.exportClause.elements) && languageVersion === 0) {
+                checkExternalEmitHelpers(node, 1048576);
+            }
+            checkGrammarExportDeclaration(node);
+            if (!node.moduleSpecifier || checkExternalImportOrExportDeclaration(node)) {
+                if (node.exportClause && !ts.isNamespaceExport(node.exportClause)) {
+                    ts.forEach(node.exportClause.elements, checkExportSpecifier);
+                    var inAmbientExternalModule = node.parent.kind === 250 && ts.isAmbientModule(node.parent.parent);
+                    var inAmbientNamespaceDeclaration = !inAmbientExternalModule && node.parent.kind === 250 &&
+                        !node.moduleSpecifier && node.flags & 8388608;
+                    if (node.parent.kind !== 290 && !inAmbientExternalModule && !inAmbientNamespaceDeclaration) {
+                        error(node, ts.Diagnostics.Export_declarations_are_not_permitted_in_a_namespace);
+                    }
+                }
+                else {
+                    var moduleSymbol = resolveExternalModuleName(node, node.moduleSpecifier);
+                    if (moduleSymbol && hasExportAssignmentSymbol(moduleSymbol)) {
+                        error(node.moduleSpecifier, ts.Diagnostics.Module_0_uses_export_and_cannot_be_used_with_export_Asterisk, symbolToString(moduleSymbol));
+                    }
+                    else if (node.exportClause) {
+                        checkAliasSymbol(node.exportClause);
+                    }
+                    if (moduleKind !== ts.ModuleKind.System && moduleKind < ts.ModuleKind.ES2015) {
+                        checkExternalEmitHelpers(node, 65536);
+                    }
+                }
+            }
+        }
+        function checkGrammarExportDeclaration(node) {
+            var _a;
+            var isTypeOnlyExportStar = node.isTypeOnly && ((_a = node.exportClause) === null || _a === void 0 ? void 0 : _a.kind) !== 261;
+            if (isTypeOnlyExportStar) {
+                grammarErrorOnNode(node, ts.Diagnostics.Only_named_exports_may_use_export_type);
+            }
+            return !isTypeOnlyExportStar;
+        }
+        function checkGrammarModuleElementContext(node, errorMessage) {
+            var isInAppropriateContext = node.parent.kind === 290 || node.parent.kind === 250 || node.parent.kind === 249;
+            if (!isInAppropriateContext) {
+                grammarErrorOnFirstToken(node, errorMessage);
+            }
+            return !isInAppropriateContext;
+        }
+        function importClauseContainsReferencedImport(importClause) {
+            return ts.forEachImportClauseDeclaration(importClause, function (declaration) {
+                return !!getSymbolOfNode(declaration).isReferenced;
+            });
+        }
+        function importClauseContainsConstEnumUsedAsValue(importClause) {
+            return ts.forEachImportClauseDeclaration(importClause, function (declaration) {
+                return !!getSymbolLinks(getSymbolOfNode(declaration)).constEnumReferenced;
+            });
+        }
+        function checkImportsForTypeOnlyConversion(sourceFile) {
+            for (var _i = 0, _a = sourceFile.statements; _i < _a.length; _i++) {
+                var statement = _a[_i];
+                if (ts.isImportDeclaration(statement) &&
+                    statement.importClause &&
+                    !statement.importClause.isTypeOnly &&
+                    importClauseContainsReferencedImport(statement.importClause) &&
+                    !isReferencedAliasDeclaration(statement.importClause, true) &&
+                    !importClauseContainsConstEnumUsedAsValue(statement.importClause)) {
+                    error(statement, ts.Diagnostics.This_import_is_never_used_as_a_value_and_must_use_import_type_because_the_importsNotUsedAsValues_is_set_to_error);
+                }
+            }
+        }
+        function checkExportSpecifier(node) {
+            checkAliasSymbol(node);
+            if (ts.getEmitDeclarations(compilerOptions)) {
+                collectLinkedAliases(node.propertyName || node.name, true);
+            }
+            if (!node.parent.parent.moduleSpecifier) {
+                var exportedName = node.propertyName || node.name;
+                var symbol = resolveName(exportedName, exportedName.escapedText, 111551 | 788968 | 1920 | 2097152, undefined, undefined, true);
+                if (symbol && (symbol === undefinedSymbol || symbol === globalThisSymbol || isGlobalSourceFile(getDeclarationContainer(symbol.declarations[0])))) {
+                    error(exportedName, ts.Diagnostics.Cannot_export_0_Only_local_declarations_can_be_exported_from_a_module, ts.idText(exportedName));
+                }
+                else {
+                    markExportAsReferenced(node);
+                    var target = symbol && (symbol.flags & 2097152 ? resolveAlias(symbol) : symbol);
+                    if (!target || target === unknownSymbol || target.flags & 111551) {
+                        checkExpressionCached(node.propertyName || node.name);
+                    }
+                }
+            }
+        }
+        function checkExportAssignment(node) {
+            if (checkGrammarModuleElementContext(node, ts.Diagnostics.An_export_assignment_can_only_be_used_in_a_module)) {
+                return;
+            }
+            var container = node.parent.kind === 290 ? node.parent : node.parent.parent;
+            if (container.kind === 249 && !ts.isAmbientModule(container)) {
+                if (node.isExportEquals) {
+                    error(node, ts.Diagnostics.An_export_assignment_cannot_be_used_in_a_namespace);
+                }
+                else {
+                    error(node, ts.Diagnostics.A_default_export_can_only_be_used_in_an_ECMAScript_style_module);
+                }
+                return;
+            }
+            if (!checkGrammarDecoratorsAndModifiers(node) && ts.hasModifiers(node)) {
+                grammarErrorOnFirstToken(node, ts.Diagnostics.An_export_assignment_cannot_have_modifiers);
+            }
+            if (node.expression.kind === 75) {
+                var id = node.expression;
+                var sym = resolveEntityName(id, 67108863, true, true, node);
+                if (sym) {
+                    markAliasReferenced(sym, id);
+                    var target = sym.flags & 2097152 ? resolveAlias(sym) : sym;
+                    if (target === unknownSymbol || target.flags & 111551) {
+                        checkExpressionCached(node.expression);
+                    }
+                }
+                if (ts.getEmitDeclarations(compilerOptions)) {
+                    collectLinkedAliases(node.expression, true);
+                }
+            }
+            else {
+                checkExpressionCached(node.expression);
+            }
+            checkExternalModuleExports(container);
+            if ((node.flags & 8388608) && !ts.isEntityNameExpression(node.expression)) {
+                grammarErrorOnNode(node.expression, ts.Diagnostics.The_expression_of_an_export_assignment_must_be_an_identifier_or_qualified_name_in_an_ambient_context);
+            }
+            if (node.isExportEquals && !(node.flags & 8388608)) {
+                if (moduleKind >= ts.ModuleKind.ES2015) {
+                    grammarErrorOnNode(node, ts.Diagnostics.Export_assignment_cannot_be_used_when_targeting_ECMAScript_modules_Consider_using_export_default_or_another_module_format_instead);
+                }
+                else if (moduleKind === ts.ModuleKind.System) {
+                    grammarErrorOnNode(node, ts.Diagnostics.Export_assignment_is_not_supported_when_module_flag_is_system);
+                }
+            }
+        }
+        function hasExportedMembers(moduleSymbol) {
+            return ts.forEachEntry(moduleSymbol.exports, function (_, id) { return id !== "export="; });
+        }
+        function checkExternalModuleExports(node) {
+            var moduleSymbol = getSymbolOfNode(node);
+            var links = getSymbolLinks(moduleSymbol);
+            if (!links.exportsChecked) {
+                var exportEqualsSymbol = moduleSymbol.exports.get("export=");
+                if (exportEqualsSymbol && hasExportedMembers(moduleSymbol)) {
+                    var declaration = getDeclarationOfAliasSymbol(exportEqualsSymbol) || exportEqualsSymbol.valueDeclaration;
+                    if (!isTopLevelInExternalModuleAugmentation(declaration) && !ts.isInJSFile(declaration)) {
+                        error(declaration, ts.Diagnostics.An_export_assignment_cannot_be_used_in_a_module_with_other_exported_elements);
+                    }
+                }
+                var exports_2 = getExportsOfModule(moduleSymbol);
+                if (exports_2) {
+                    exports_2.forEach(function (_a, id) {
+                        var declarations = _a.declarations, flags = _a.flags;
+                        if (id === "__export") {
+                            return;
+                        }
+                        if (flags & (1920 | 64 | 384)) {
+                            return;
+                        }
+                        var exportedDeclarationsCount = ts.countWhere(declarations, isNotOverloadAndNotAccessor);
+                        if (flags & 524288 && exportedDeclarationsCount <= 2) {
+                            return;
+                        }
+                        if (exportedDeclarationsCount > 1) {
+                            for (var _i = 0, declarations_9 = declarations; _i < declarations_9.length; _i++) {
+                                var declaration = declarations_9[_i];
+                                if (isNotOverload(declaration)) {
+                                    diagnostics.add(ts.createDiagnosticForNode(declaration, ts.Diagnostics.Cannot_redeclare_exported_variable_0, ts.unescapeLeadingUnderscores(id)));
+                                }
+                            }
+                        }
+                    });
+                }
+                links.exportsChecked = true;
+            }
+        }
+        function checkSourceElement(node) {
+            if (node) {
+                var saveCurrentNode = currentNode;
+                currentNode = node;
+                instantiationCount = 0;
+                checkSourceElementWorker(node);
+                currentNode = saveCurrentNode;
+            }
+        }
+        function checkSourceElementWorker(node) {
+            if (ts.isInJSFile(node)) {
+                ts.forEach(node.jsDoc, function (_a) {
+                    var tags = _a.tags;
+                    return ts.forEach(tags, checkSourceElement);
+                });
+            }
+            var kind = node.kind;
+            if (cancellationToken) {
+                switch (kind) {
+                    case 249:
+                    case 245:
+                    case 246:
+                    case 244:
+                        cancellationToken.throwIfCancellationRequested();
+                }
+            }
+            if (kind >= 225 && kind <= 241 && node.flowNode && !isReachableFlowNode(node.flowNode)) {
+                errorOrSuggestion(compilerOptions.allowUnreachableCode === false, node, ts.Diagnostics.Unreachable_code_detected);
+            }
+            switch (kind) {
+                case 155:
+                    return checkTypeParameter(node);
+                case 156:
+                    return checkParameter(node);
+                case 159:
+                    return checkPropertyDeclaration(node);
+                case 158:
+                    return checkPropertySignature(node);
+                case 170:
+                case 171:
+                case 165:
+                case 166:
+                case 167:
+                    return checkSignatureDeclaration(node);
+                case 161:
+                case 160:
+                    return checkMethodDeclaration(node);
+                case 162:
+                    return checkConstructorDeclaration(node);
+                case 163:
+                case 164:
+                    return checkAccessorDeclaration(node);
+                case 169:
+                    return checkTypeReferenceNode(node);
+                case 168:
+                    return checkTypePredicate(node);
+                case 172:
+                    return checkTypeQuery(node);
+                case 173:
+                    return checkTypeLiteral(node);
+                case 174:
+                    return checkArrayType(node);
+                case 175:
+                    return checkTupleType(node);
+                case 178:
+                case 179:
+                    return checkUnionOrIntersectionType(node);
+                case 182:
+                case 176:
+                case 177:
+                    return checkSourceElement(node.type);
+                case 183:
+                    return checkThisType(node);
+                case 184:
+                    return checkTypeOperator(node);
+                case 180:
+                    return checkConditionalType(node);
+                case 181:
+                    return checkInferType(node);
+                case 188:
+                    return checkImportType(node);
+                case 307:
+                    return checkJSDocAugmentsTag(node);
+                case 308:
+                    return checkJSDocImplementsTag(node);
+                case 322:
+                case 315:
+                case 316:
+                    return checkJSDocTypeAliasTag(node);
+                case 321:
+                    return checkJSDocTemplateTag(node);
+                case 320:
+                    return checkJSDocTypeTag(node);
+                case 317:
+                    return checkJSDocParameterTag(node);
+                case 323:
+                    return checkJSDocPropertyTag(node);
+                case 300:
+                    checkJSDocFunctionType(node);
+                case 298:
+                case 297:
+                case 295:
+                case 296:
+                case 304:
+                    checkJSDocTypeIsInJsFile(node);
+                    ts.forEachChild(node, checkSourceElement);
+                    return;
+                case 301:
+                    checkJSDocVariadicType(node);
+                    return;
+                case 294:
+                    return checkSourceElement(node.type);
+                case 185:
+                    return checkIndexedAccessType(node);
+                case 186:
+                    return checkMappedType(node);
+                case 244:
+                    return checkFunctionDeclaration(node);
+                case 223:
+                case 250:
+                    return checkBlock(node);
+                case 225:
+                    return checkVariableStatement(node);
+                case 226:
+                    return checkExpressionStatement(node);
+                case 227:
+                    return checkIfStatement(node);
+                case 228:
+                    return checkDoStatement(node);
+                case 229:
+                    return checkWhileStatement(node);
+                case 230:
+                    return checkForStatement(node);
+                case 231:
+                    return checkForInStatement(node);
+                case 232:
+                    return checkForOfStatement(node);
+                case 233:
+                case 234:
+                    return checkBreakOrContinueStatement(node);
+                case 235:
+                    return checkReturnStatement(node);
+                case 236:
+                    return checkWithStatement(node);
+                case 237:
+                    return checkSwitchStatement(node);
+                case 238:
+                    return checkLabeledStatement(node);
+                case 239:
+                    return checkThrowStatement(node);
+                case 240:
+                    return checkTryStatement(node);
+                case 242:
+                    return checkVariableDeclaration(node);
+                case 191:
+                    return checkBindingElement(node);
+                case 245:
+                    return checkClassDeclaration(node);
+                case 246:
+                    return checkInterfaceDeclaration(node);
+                case 247:
+                    return checkTypeAliasDeclaration(node);
+                case 248:
+                    return checkEnumDeclaration(node);
+                case 249:
+                    return checkModuleDeclaration(node);
+                case 254:
+                    return checkImportDeclaration(node);
+                case 253:
+                    return checkImportEqualsDeclaration(node);
+                case 260:
+                    return checkExportDeclaration(node);
+                case 259:
+                    return checkExportAssignment(node);
+                case 224:
+                case 241:
+                    checkGrammarStatementInAmbientContext(node);
+                    return;
+                case 264:
+                    return checkMissingDeclaration(node);
+            }
+        }
+        function checkJSDocTypeIsInJsFile(node) {
+            if (!ts.isInJSFile(node)) {
+                grammarErrorOnNode(node, ts.Diagnostics.JSDoc_types_can_only_be_used_inside_documentation_comments);
+            }
+        }
+        function checkJSDocVariadicType(node) {
+            checkJSDocTypeIsInJsFile(node);
+            checkSourceElement(node.type);
+            var parent = node.parent;
+            if (ts.isParameter(parent) && ts.isJSDocFunctionType(parent.parent)) {
+                if (ts.last(parent.parent.parameters) !== parent) {
+                    error(node, ts.Diagnostics.A_rest_parameter_must_be_last_in_a_parameter_list);
+                }
+                return;
+            }
+            if (!ts.isJSDocTypeExpression(parent)) {
+                error(node, ts.Diagnostics.JSDoc_may_only_appear_in_the_last_parameter_of_a_signature);
+            }
+            var paramTag = node.parent.parent;
+            if (!ts.isJSDocParameterTag(paramTag)) {
+                error(node, ts.Diagnostics.JSDoc_may_only_appear_in_the_last_parameter_of_a_signature);
+                return;
+            }
+            var param = ts.getParameterSymbolFromJSDoc(paramTag);
+            if (!param) {
+                return;
+            }
+            var host = ts.getHostSignatureFromJSDoc(paramTag);
+            if (!host || ts.last(host.parameters).symbol !== param) {
+                error(node, ts.Diagnostics.A_rest_parameter_must_be_last_in_a_parameter_list);
+            }
+        }
+        function getTypeFromJSDocVariadicType(node) {
+            var type = getTypeFromTypeNode(node.type);
+            var parent = node.parent;
+            var paramTag = node.parent.parent;
+            if (ts.isJSDocTypeExpression(node.parent) && ts.isJSDocParameterTag(paramTag)) {
+                var host_1 = ts.getHostSignatureFromJSDoc(paramTag);
+                if (host_1) {
+                    var lastParamDeclaration = ts.lastOrUndefined(host_1.parameters);
+                    var symbol = ts.getParameterSymbolFromJSDoc(paramTag);
+                    if (!lastParamDeclaration ||
+                        symbol && lastParamDeclaration.symbol === symbol && ts.isRestParameter(lastParamDeclaration)) {
+                        return createArrayType(type);
+                    }
+                }
+            }
+            if (ts.isParameter(parent) && ts.isJSDocFunctionType(parent.parent)) {
+                return createArrayType(type);
+            }
+            return addOptionality(type);
+        }
+        function checkNodeDeferred(node) {
+            var enclosingFile = ts.getSourceFileOfNode(node);
+            var links = getNodeLinks(enclosingFile);
+            if (!(links.flags & 1)) {
+                links.deferredNodes = links.deferredNodes || ts.createMap();
+                var id = "" + getNodeId(node);
+                links.deferredNodes.set(id, node);
+            }
+        }
+        function checkDeferredNodes(context) {
+            var links = getNodeLinks(context);
+            if (links.deferredNodes) {
+                links.deferredNodes.forEach(checkDeferredNode);
+            }
+        }
+        function checkDeferredNode(node) {
+            var saveCurrentNode = currentNode;
+            currentNode = node;
+            instantiationCount = 0;
+            switch (node.kind) {
+                case 196:
+                case 197:
+                case 198:
+                case 157:
+                case 268:
+                    resolveUntypedCall(node);
+                    break;
+                case 201:
+                case 202:
+                case 161:
+                case 160:
+                    checkFunctionExpressionOrObjectLiteralMethodDeferred(node);
+                    break;
+                case 163:
+                case 164:
+                    checkAccessorDeclaration(node);
+                    break;
+                case 214:
+                    checkClassExpressionDeferred(node);
+                    break;
+                case 267:
+                    checkJsxSelfClosingElementDeferred(node);
+                    break;
+                case 266:
+                    checkJsxElementDeferred(node);
+                    break;
+            }
+            currentNode = saveCurrentNode;
+        }
+        function checkSourceFile(node) {
+            ts.performance.mark("beforeCheck");
+            checkSourceFileWorker(node);
+            ts.performance.mark("afterCheck");
+            ts.performance.measure("Check", "beforeCheck", "afterCheck");
+        }
+        function unusedIsError(kind, isAmbient) {
+            if (isAmbient) {
+                return false;
+            }
+            switch (kind) {
+                case 0:
+                    return !!compilerOptions.noUnusedLocals;
+                case 1:
+                    return !!compilerOptions.noUnusedParameters;
+                default:
+                    return ts.Debug.assertNever(kind);
+            }
+        }
+        function getPotentiallyUnusedIdentifiers(sourceFile) {
+            return allPotentiallyUnusedIdentifiers.get(sourceFile.path) || ts.emptyArray;
+        }
+        function checkSourceFileWorker(node) {
+            var links = getNodeLinks(node);
+            if (!(links.flags & 1)) {
+                if (ts.skipTypeChecking(node, compilerOptions, host)) {
+                    return;
+                }
+                checkGrammarSourceFile(node);
+                ts.clear(potentialThisCollisions);
+                ts.clear(potentialNewTargetCollisions);
+                ts.clear(potentialWeakMapCollisions);
+                ts.forEach(node.statements, checkSourceElement);
+                checkSourceElement(node.endOfFileToken);
+                checkDeferredNodes(node);
+                if (ts.isExternalOrCommonJsModule(node)) {
+                    registerForUnusedIdentifiersCheck(node);
+                }
+                if (!node.isDeclarationFile && (compilerOptions.noUnusedLocals || compilerOptions.noUnusedParameters)) {
+                    checkUnusedIdentifiers(getPotentiallyUnusedIdentifiers(node), function (containingNode, kind, diag) {
+                        if (!ts.containsParseError(containingNode) && unusedIsError(kind, !!(containingNode.flags & 8388608))) {
+                            diagnostics.add(diag);
+                        }
+                    });
+                }
+                if (compilerOptions.importsNotUsedAsValues === 2 &&
+                    !node.isDeclarationFile &&
+                    ts.isExternalModule(node)) {
+                    checkImportsForTypeOnlyConversion(node);
+                }
+                if (ts.isExternalOrCommonJsModule(node)) {
+                    checkExternalModuleExports(node);
+                }
+                if (potentialThisCollisions.length) {
+                    ts.forEach(potentialThisCollisions, checkIfThisIsCapturedInEnclosingScope);
+                    ts.clear(potentialThisCollisions);
+                }
+                if (potentialNewTargetCollisions.length) {
+                    ts.forEach(potentialNewTargetCollisions, checkIfNewTargetIsCapturedInEnclosingScope);
+                    ts.clear(potentialNewTargetCollisions);
+                }
+                if (potentialWeakMapCollisions.length) {
+                    ts.forEach(potentialWeakMapCollisions, checkWeakMapCollision);
+                    ts.clear(potentialWeakMapCollisions);
+                }
+                links.flags |= 1;
+            }
+        }
+        function getDiagnostics(sourceFile, ct) {
+            try {
+                cancellationToken = ct;
+                return getDiagnosticsWorker(sourceFile);
+            }
+            finally {
+                cancellationToken = undefined;
+            }
+        }
+        function getDiagnosticsWorker(sourceFile) {
+            throwIfNonDiagnosticsProducing();
+            if (sourceFile) {
+                var previousGlobalDiagnostics = diagnostics.getGlobalDiagnostics();
+                var previousGlobalDiagnosticsSize = previousGlobalDiagnostics.length;
+                checkSourceFile(sourceFile);
+                var semanticDiagnostics = diagnostics.getDiagnostics(sourceFile.fileName);
+                var currentGlobalDiagnostics = diagnostics.getGlobalDiagnostics();
+                if (currentGlobalDiagnostics !== previousGlobalDiagnostics) {
+                    var deferredGlobalDiagnostics = ts.relativeComplement(previousGlobalDiagnostics, currentGlobalDiagnostics, ts.compareDiagnostics);
+                    return ts.concatenate(deferredGlobalDiagnostics, semanticDiagnostics);
+                }
+                else if (previousGlobalDiagnosticsSize === 0 && currentGlobalDiagnostics.length > 0) {
+                    return ts.concatenate(currentGlobalDiagnostics, semanticDiagnostics);
+                }
+                return semanticDiagnostics;
+            }
+            ts.forEach(host.getSourceFiles(), checkSourceFile);
+            return diagnostics.getDiagnostics();
+        }
+        function getGlobalDiagnostics() {
+            throwIfNonDiagnosticsProducing();
+            return diagnostics.getGlobalDiagnostics();
+        }
+        function throwIfNonDiagnosticsProducing() {
+            if (!produceDiagnostics) {
+                throw new Error("Trying to get diagnostics from a type checker that does not produce them.");
+            }
+        }
+        function getSymbolsInScope(location, meaning) {
+            if (location.flags & 16777216) {
+                return [];
+            }
+            var symbols = ts.createSymbolTable();
+            var isStatic = false;
+            populateSymbols();
+            symbols.delete("this");
+            return symbolsToArray(symbols);
+            function populateSymbols() {
+                while (location) {
+                    if (location.locals && !isGlobalSourceFile(location)) {
+                        copySymbols(location.locals, meaning);
+                    }
+                    switch (location.kind) {
+                        case 290:
+                            if (!ts.isExternalOrCommonJsModule(location))
+                                break;
+                        case 249:
+                            copySymbols(getSymbolOfNode(location).exports, meaning & 2623475);
+                            break;
+                        case 248:
+                            copySymbols(getSymbolOfNode(location).exports, meaning & 8);
+                            break;
+                        case 214:
+                            var className = location.name;
+                            if (className) {
+                                copySymbol(location.symbol, meaning);
+                            }
+                        case 245:
+                        case 246:
+                            if (!isStatic) {
+                                copySymbols(getMembersOfSymbol(getSymbolOfNode(location)), meaning & 788968);
+                            }
+                            break;
+                        case 201:
+                            var funcName = location.name;
+                            if (funcName) {
+                                copySymbol(location.symbol, meaning);
+                            }
+                            break;
+                    }
+                    if (ts.introducesArgumentsExoticObject(location)) {
+                        copySymbol(argumentsSymbol, meaning);
+                    }
+                    isStatic = ts.hasModifier(location, 32);
+                    location = location.parent;
+                }
+                copySymbols(globals, meaning);
+            }
+            function copySymbol(symbol, meaning) {
+                if (ts.getCombinedLocalAndExportSymbolFlags(symbol) & meaning) {
+                    var id = symbol.escapedName;
+                    if (!symbols.has(id)) {
+                        symbols.set(id, symbol);
+                    }
+                }
+            }
+            function copySymbols(source, meaning) {
+                if (meaning) {
+                    source.forEach(function (symbol) {
+                        copySymbol(symbol, meaning);
+                    });
+                }
+            }
+        }
+        function isTypeDeclarationName(name) {
+            return name.kind === 75 &&
+                isTypeDeclaration(name.parent) &&
+                name.parent.name === name;
+        }
+        function isTypeDeclaration(node) {
+            switch (node.kind) {
+                case 155:
+                case 245:
+                case 246:
+                case 247:
+                case 248:
+                    return true;
+                case 255:
+                    return node.isTypeOnly;
+                case 258:
+                case 263:
+                    return node.parent.parent.isTypeOnly;
+                default:
+                    return false;
+            }
+        }
+        function isTypeReferenceIdentifier(node) {
+            while (node.parent.kind === 153) {
+                node = node.parent;
+            }
+            return node.parent.kind === 169;
+        }
+        function isHeritageClauseElementIdentifier(node) {
+            while (node.parent.kind === 194) {
+                node = node.parent;
+            }
+            return node.parent.kind === 216;
+        }
+        function forEachEnclosingClass(node, callback) {
+            var result;
+            while (true) {
+                node = ts.getContainingClass(node);
+                if (!node)
+                    break;
+                if (result = callback(node))
+                    break;
+            }
+            return result;
+        }
+        function isNodeUsedDuringClassInitialization(node) {
+            return !!ts.findAncestor(node, function (element) {
+                if (ts.isConstructorDeclaration(element) && ts.nodeIsPresent(element.body) || ts.isPropertyDeclaration(element)) {
+                    return true;
+                }
+                else if (ts.isClassLike(element) || ts.isFunctionLikeDeclaration(element)) {
+                    return "quit";
+                }
+                return false;
+            });
+        }
+        function isNodeWithinClass(node, classDeclaration) {
+            return !!forEachEnclosingClass(node, function (n) { return n === classDeclaration; });
+        }
+        function getLeftSideOfImportEqualsOrExportAssignment(nodeOnRightSide) {
+            while (nodeOnRightSide.parent.kind === 153) {
+                nodeOnRightSide = nodeOnRightSide.parent;
+            }
+            if (nodeOnRightSide.parent.kind === 253) {
+                return nodeOnRightSide.parent.moduleReference === nodeOnRightSide ? nodeOnRightSide.parent : undefined;
+            }
+            if (nodeOnRightSide.parent.kind === 259) {
+                return nodeOnRightSide.parent.expression === nodeOnRightSide ? nodeOnRightSide.parent : undefined;
+            }
+            return undefined;
+        }
+        function isInRightSideOfImportOrExportAssignment(node) {
+            return getLeftSideOfImportEqualsOrExportAssignment(node) !== undefined;
+        }
+        function getSpecialPropertyAssignmentSymbolFromEntityName(entityName) {
+            var specialPropertyAssignmentKind = ts.getAssignmentDeclarationKind(entityName.parent.parent);
+            switch (specialPropertyAssignmentKind) {
+                case 1:
+                case 3:
+                    return getSymbolOfNode(entityName.parent);
+                case 4:
+                case 2:
+                case 5:
+                    return getSymbolOfNode(entityName.parent.parent);
+            }
+        }
+        function isImportTypeQualifierPart(node) {
+            var parent = node.parent;
+            while (ts.isQualifiedName(parent)) {
+                node = parent;
+                parent = parent.parent;
+            }
+            if (parent && parent.kind === 188 && parent.qualifier === node) {
+                return parent;
+            }
+            return undefined;
+        }
+        function getSymbolOfNameOrPropertyAccessExpression(name) {
+            if (ts.isDeclarationName(name)) {
+                return getSymbolOfNode(name.parent);
+            }
+            if (ts.isInJSFile(name) &&
+                name.parent.kind === 194 &&
+                name.parent === name.parent.parent.left) {
+                if (!ts.isPrivateIdentifier(name)) {
+                    var specialPropertyAssignmentSymbol = getSpecialPropertyAssignmentSymbolFromEntityName(name);
+                    if (specialPropertyAssignmentSymbol) {
+                        return specialPropertyAssignmentSymbol;
+                    }
+                }
+            }
+            if (name.parent.kind === 259 && ts.isEntityNameExpression(name)) {
+                var success = resolveEntityName(name, 111551 | 788968 | 1920 | 2097152, true);
+                if (success && success !== unknownSymbol) {
+                    return success;
+                }
+            }
+            else if (!ts.isPropertyAccessExpression(name) && !ts.isPrivateIdentifier(name) && isInRightSideOfImportOrExportAssignment(name)) {
+                var importEqualsDeclaration = ts.getAncestor(name, 253);
+                ts.Debug.assert(importEqualsDeclaration !== undefined);
+                return getSymbolOfPartOfRightHandSideOfImportEquals(name, true);
+            }
+            if (!ts.isPropertyAccessExpression(name) && !ts.isPrivateIdentifier(name)) {
+                var possibleImportNode = isImportTypeQualifierPart(name);
+                if (possibleImportNode) {
+                    getTypeFromTypeNode(possibleImportNode);
+                    var sym = getNodeLinks(name).resolvedSymbol;
+                    return sym === unknownSymbol ? undefined : sym;
+                }
+            }
+            while (ts.isRightSideOfQualifiedNameOrPropertyAccess(name)) {
+                name = name.parent;
+            }
+            if (isHeritageClauseElementIdentifier(name)) {
+                var meaning = 0;
+                if (name.parent.kind === 216) {
+                    meaning = 788968;
+                    if (ts.isExpressionWithTypeArgumentsInClassExtendsClause(name.parent)) {
+                        meaning |= 111551;
+                    }
+                }
+                else {
+                    meaning = 1920;
+                }
+                meaning |= 2097152;
+                var entityNameSymbol = ts.isEntityNameExpression(name) ? resolveEntityName(name, meaning) : undefined;
+                if (entityNameSymbol) {
+                    return entityNameSymbol;
+                }
+            }
+            if (name.parent.kind === 317) {
+                return ts.getParameterSymbolFromJSDoc(name.parent);
+            }
+            if (name.parent.kind === 155 && name.parent.parent.kind === 321) {
+                ts.Debug.assert(!ts.isInJSFile(name));
+                var typeParameter = ts.getTypeParameterFromJsDoc(name.parent);
+                return typeParameter && typeParameter.symbol;
+            }
+            if (ts.isExpressionNode(name)) {
+                if (ts.nodeIsMissing(name)) {
+                    return undefined;
+                }
+                if (name.kind === 75) {
+                    if (ts.isJSXTagName(name) && isJsxIntrinsicIdentifier(name)) {
+                        var symbol = getIntrinsicTagSymbol(name.parent);
+                        return symbol === unknownSymbol ? undefined : symbol;
+                    }
+                    return resolveEntityName(name, 111551, false, true);
+                }
+                else if (name.kind === 194 || name.kind === 153) {
+                    var links = getNodeLinks(name);
+                    if (links.resolvedSymbol) {
+                        return links.resolvedSymbol;
+                    }
+                    if (name.kind === 194) {
+                        checkPropertyAccessExpression(name);
+                    }
+                    else {
+                        checkQualifiedName(name);
+                    }
+                    return links.resolvedSymbol;
+                }
+            }
+            else if (isTypeReferenceIdentifier(name)) {
+                var meaning = name.parent.kind === 169 ? 788968 : 1920;
+                return resolveEntityName(name, meaning, false, true);
+            }
+            if (name.parent.kind === 168) {
+                return resolveEntityName(name, 1);
+            }
+            return undefined;
+        }
+        function getSymbolAtLocation(node, ignoreErrors) {
+            if (node.kind === 290) {
+                return ts.isExternalModule(node) ? getMergedSymbol(node.symbol) : undefined;
+            }
+            var parent = node.parent;
+            var grandParent = parent.parent;
+            if (node.flags & 16777216) {
+                return undefined;
+            }
+            if (isDeclarationNameOrImportPropertyName(node)) {
+                var parentSymbol = getSymbolOfNode(parent);
+                return ts.isImportOrExportSpecifier(node.parent) && node.parent.propertyName === node
+                    ? getImmediateAliasedSymbol(parentSymbol)
+                    : parentSymbol;
+            }
+            else if (ts.isLiteralComputedPropertyDeclarationName(node)) {
+                return getSymbolOfNode(parent.parent);
+            }
+            if (node.kind === 75) {
+                if (isInRightSideOfImportOrExportAssignment(node)) {
+                    return getSymbolOfNameOrPropertyAccessExpression(node);
+                }
+                else if (parent.kind === 191 &&
+                    grandParent.kind === 189 &&
+                    node === parent.propertyName) {
+                    var typeOfPattern = getTypeOfNode(grandParent);
+                    var propertyDeclaration = getPropertyOfType(typeOfPattern, node.escapedText);
+                    if (propertyDeclaration) {
+                        return propertyDeclaration;
+                    }
+                }
+            }
+            switch (node.kind) {
+                case 75:
+                case 76:
+                case 194:
+                case 153:
+                    return getSymbolOfNameOrPropertyAccessExpression(node);
+                case 104:
+                    var container = ts.getThisContainer(node, false);
+                    if (ts.isFunctionLike(container)) {
+                        var sig = getSignatureFromDeclaration(container);
+                        if (sig.thisParameter) {
+                            return sig.thisParameter;
+                        }
+                    }
+                    if (ts.isInExpressionContext(node)) {
+                        return checkExpression(node).symbol;
+                    }
+                case 183:
+                    return getTypeFromThisTypeNode(node).symbol;
+                case 102:
+                    return checkExpression(node).symbol;
+                case 129:
+                    var constructorDeclaration = node.parent;
+                    if (constructorDeclaration && constructorDeclaration.kind === 162) {
+                        return constructorDeclaration.parent.symbol;
+                    }
+                    return undefined;
+                case 10:
+                case 14:
+                    if ((ts.isExternalModuleImportEqualsDeclaration(node.parent.parent) && ts.getExternalModuleImportEqualsDeclarationExpression(node.parent.parent) === node) ||
+                        ((node.parent.kind === 254 || node.parent.kind === 260) && node.parent.moduleSpecifier === node) ||
+                        ((ts.isInJSFile(node) && ts.isRequireCall(node.parent, false)) || ts.isImportCall(node.parent)) ||
+                        (ts.isLiteralTypeNode(node.parent) && ts.isLiteralImportTypeNode(node.parent.parent) && node.parent.parent.argument === node.parent)) {
+                        return resolveExternalModuleName(node, node, ignoreErrors);
+                    }
+                    if (ts.isCallExpression(parent) && ts.isBindableObjectDefinePropertyCall(parent) && parent.arguments[1] === node) {
+                        return getSymbolOfNode(parent);
+                    }
+                case 8:
+                    var objectType = ts.isElementAccessExpression(parent)
+                        ? parent.argumentExpression === node ? getTypeOfExpression(parent.expression) : undefined
+                        : ts.isLiteralTypeNode(parent) && ts.isIndexedAccessTypeNode(grandParent)
+                            ? getTypeFromTypeNode(grandParent.objectType)
+                            : undefined;
+                    return objectType && getPropertyOfType(objectType, ts.escapeLeadingUnderscores(node.text));
+                case 84:
+                case 94:
+                case 38:
+                case 80:
+                    return getSymbolOfNode(node.parent);
+                case 188:
+                    return ts.isLiteralImportTypeNode(node) ? getSymbolAtLocation(node.argument.literal, ignoreErrors) : undefined;
+                case 89:
+                    return ts.isExportAssignment(node.parent) ? ts.Debug.checkDefined(node.parent.symbol) : undefined;
+                default:
+                    return undefined;
+            }
+        }
+        function getShorthandAssignmentValueSymbol(location) {
+            if (location && location.kind === 282) {
+                return resolveEntityName(location.name, 111551 | 2097152);
+            }
+            return undefined;
+        }
+        function getExportSpecifierLocalTargetSymbol(node) {
+            return node.parent.parent.moduleSpecifier ?
+                getExternalModuleMember(node.parent.parent, node) :
+                resolveEntityName(node.propertyName || node.name, 111551 | 788968 | 1920 | 2097152);
+        }
+        function getTypeOfNode(node) {
+            if (node.flags & 16777216) {
+                return errorType;
+            }
+            var classDecl = ts.tryGetClassImplementingOrExtendingExpressionWithTypeArguments(node);
+            var classType = classDecl && getDeclaredTypeOfClassOrInterface(getSymbolOfNode(classDecl.class));
+            if (ts.isPartOfTypeNode(node)) {
+                var typeFromTypeNode = getTypeFromTypeNode(node);
+                return classType ? getTypeWithThisArgument(typeFromTypeNode, classType.thisType) : typeFromTypeNode;
+            }
+            if (ts.isExpressionNode(node)) {
+                return getRegularTypeOfExpression(node);
+            }
+            if (classType && !classDecl.isImplements) {
+                var baseType = ts.firstOrUndefined(getBaseTypes(classType));
+                return baseType ? getTypeWithThisArgument(baseType, classType.thisType) : errorType;
+            }
+            if (isTypeDeclaration(node)) {
+                var symbol = getSymbolOfNode(node);
+                return getDeclaredTypeOfSymbol(symbol);
+            }
+            if (isTypeDeclarationName(node)) {
+                var symbol = getSymbolAtLocation(node);
+                return symbol ? getDeclaredTypeOfSymbol(symbol) : errorType;
+            }
+            if (ts.isDeclaration(node)) {
+                var symbol = getSymbolOfNode(node);
+                return getTypeOfSymbol(symbol);
+            }
+            if (isDeclarationNameOrImportPropertyName(node)) {
+                var symbol = getSymbolAtLocation(node);
+                if (symbol) {
+                    return getTypeOfSymbol(symbol);
+                }
+                return errorType;
+            }
+            if (ts.isBindingPattern(node)) {
+                return getTypeForVariableLikeDeclaration(node.parent, true) || errorType;
+            }
+            if (isInRightSideOfImportOrExportAssignment(node)) {
+                var symbol = getSymbolAtLocation(node);
+                if (symbol) {
+                    var declaredType = getDeclaredTypeOfSymbol(symbol);
+                    return declaredType !== errorType ? declaredType : getTypeOfSymbol(symbol);
+                }
+            }
+            return errorType;
+        }
+        function getTypeOfAssignmentPattern(expr) {
+            ts.Debug.assert(expr.kind === 193 || expr.kind === 192);
+            if (expr.parent.kind === 232) {
+                var iteratedType = checkRightHandSideOfForOf(expr.parent);
+                return checkDestructuringAssignment(expr, iteratedType || errorType);
+            }
+            if (expr.parent.kind === 209) {
+                var iteratedType = getTypeOfExpression(expr.parent.right);
+                return checkDestructuringAssignment(expr, iteratedType || errorType);
+            }
+            if (expr.parent.kind === 281) {
+                var node_4 = ts.cast(expr.parent.parent, ts.isObjectLiteralExpression);
+                var typeOfParentObjectLiteral = getTypeOfAssignmentPattern(node_4) || errorType;
+                var propertyIndex = ts.indexOfNode(node_4.properties, expr.parent);
+                return checkObjectLiteralDestructuringPropertyAssignment(node_4, typeOfParentObjectLiteral, propertyIndex);
+            }
+            var node = ts.cast(expr.parent, ts.isArrayLiteralExpression);
+            var typeOfArrayLiteral = getTypeOfAssignmentPattern(node) || errorType;
+            var elementType = checkIteratedTypeOrElementType(65, typeOfArrayLiteral, undefinedType, expr.parent) || errorType;
+            return checkArrayLiteralDestructuringElementAssignment(node, typeOfArrayLiteral, node.elements.indexOf(expr), elementType);
+        }
+        function getPropertySymbolOfDestructuringAssignment(location) {
+            var typeOfObjectLiteral = getTypeOfAssignmentPattern(ts.cast(location.parent.parent, ts.isAssignmentPattern));
+            return typeOfObjectLiteral && getPropertyOfType(typeOfObjectLiteral, location.escapedText);
+        }
+        function getRegularTypeOfExpression(expr) {
+            if (ts.isRightSideOfQualifiedNameOrPropertyAccess(expr)) {
+                expr = expr.parent;
+            }
+            return getRegularTypeOfLiteralType(getTypeOfExpression(expr));
+        }
+        function getParentTypeOfClassElement(node) {
+            var classSymbol = getSymbolOfNode(node.parent);
+            return ts.hasModifier(node, 32)
+                ? getTypeOfSymbol(classSymbol)
+                : getDeclaredTypeOfSymbol(classSymbol);
+        }
+        function getClassElementPropertyKeyType(element) {
+            var name = element.name;
+            switch (name.kind) {
+                case 75:
+                    return getLiteralType(ts.idText(name));
+                case 8:
+                case 10:
+                    return getLiteralType(name.text);
+                case 154:
+                    var nameType = checkComputedPropertyName(name);
+                    return isTypeAssignableToKind(nameType, 12288) ? nameType : stringType;
+                default:
+                    return ts.Debug.fail("Unsupported property name.");
+            }
+        }
+        function getAugmentedPropertiesOfType(type) {
+            type = getApparentType(type);
+            var propsByName = ts.createSymbolTable(getPropertiesOfType(type));
+            var functionType = getSignaturesOfType(type, 0).length ? globalCallableFunctionType :
+                getSignaturesOfType(type, 1).length ? globalNewableFunctionType :
+                    undefined;
+            if (functionType) {
+                ts.forEach(getPropertiesOfType(functionType), function (p) {
+                    if (!propsByName.has(p.escapedName)) {
+                        propsByName.set(p.escapedName, p);
+                    }
+                });
+            }
+            return getNamedMembers(propsByName);
+        }
+        function typeHasCallOrConstructSignatures(type) {
+            return ts.typeHasCallOrConstructSignatures(type, checker);
+        }
+        function getRootSymbols(symbol) {
+            var roots = getImmediateRootSymbols(symbol);
+            return roots ? ts.flatMap(roots, getRootSymbols) : [symbol];
+        }
+        function getImmediateRootSymbols(symbol) {
+            if (ts.getCheckFlags(symbol) & 6) {
+                return ts.mapDefined(getSymbolLinks(symbol).containingType.types, function (type) { return getPropertyOfType(type, symbol.escapedName); });
+            }
+            else if (symbol.flags & 33554432) {
+                var _a = symbol, leftSpread = _a.leftSpread, rightSpread = _a.rightSpread, syntheticOrigin = _a.syntheticOrigin;
+                return leftSpread ? [leftSpread, rightSpread]
+                    : syntheticOrigin ? [syntheticOrigin]
+                        : ts.singleElementArray(tryGetAliasTarget(symbol));
+            }
+            return undefined;
+        }
+        function tryGetAliasTarget(symbol) {
+            var target;
+            var next = symbol;
+            while (next = getSymbolLinks(next).target) {
+                target = next;
+            }
+            return target;
+        }
+        function isArgumentsLocalBinding(nodeIn) {
+            if (!ts.isGeneratedIdentifier(nodeIn)) {
+                var node = ts.getParseTreeNode(nodeIn, ts.isIdentifier);
+                if (node) {
+                    var isPropertyName_1 = node.parent.kind === 194 && node.parent.name === node;
+                    return !isPropertyName_1 && getReferencedValueSymbol(node) === argumentsSymbol;
+                }
+            }
+            return false;
+        }
+        function moduleExportsSomeValue(moduleReferenceExpression) {
+            var moduleSymbol = resolveExternalModuleName(moduleReferenceExpression.parent, moduleReferenceExpression);
+            if (!moduleSymbol || ts.isShorthandAmbientModuleSymbol(moduleSymbol)) {
+                return true;
+            }
+            var hasExportAssignment = hasExportAssignmentSymbol(moduleSymbol);
+            moduleSymbol = resolveExternalModuleSymbol(moduleSymbol);
+            var symbolLinks = getSymbolLinks(moduleSymbol);
+            if (symbolLinks.exportsSomeValue === undefined) {
+                symbolLinks.exportsSomeValue = hasExportAssignment
+                    ? !!(moduleSymbol.flags & 111551)
+                    : ts.forEachEntry(getExportsOfModule(moduleSymbol), isValue);
+            }
+            return symbolLinks.exportsSomeValue;
+            function isValue(s) {
+                s = resolveSymbol(s);
+                return s && !!(s.flags & 111551);
+            }
+        }
+        function isNameOfModuleOrEnumDeclaration(node) {
+            return ts.isModuleOrEnumDeclaration(node.parent) && node === node.parent.name;
+        }
+        function getReferencedExportContainer(nodeIn, prefixLocals) {
+            var node = ts.getParseTreeNode(nodeIn, ts.isIdentifier);
+            if (node) {
+                var symbol = getReferencedValueSymbol(node, isNameOfModuleOrEnumDeclaration(node));
+                if (symbol) {
+                    if (symbol.flags & 1048576) {
+                        var exportSymbol = getMergedSymbol(symbol.exportSymbol);
+                        if (!prefixLocals && exportSymbol.flags & 944 && !(exportSymbol.flags & 3)) {
+                            return undefined;
+                        }
+                        symbol = exportSymbol;
+                    }
+                    var parentSymbol_1 = getParentOfSymbol(symbol);
+                    if (parentSymbol_1) {
+                        if (parentSymbol_1.flags & 512 && parentSymbol_1.valueDeclaration.kind === 290) {
+                            var symbolFile = parentSymbol_1.valueDeclaration;
+                            var referenceFile = ts.getSourceFileOfNode(node);
+                            var symbolIsUmdExport = symbolFile !== referenceFile;
+                            return symbolIsUmdExport ? undefined : symbolFile;
+                        }
+                        return ts.findAncestor(node.parent, function (n) { return ts.isModuleOrEnumDeclaration(n) && getSymbolOfNode(n) === parentSymbol_1; });
+                    }
+                }
+            }
+        }
+        function getReferencedImportDeclaration(nodeIn) {
+            var node = ts.getParseTreeNode(nodeIn, ts.isIdentifier);
+            if (node) {
+                var symbol = getReferencedValueSymbol(node);
+                if (isNonLocalAlias(symbol, 111551) && !getTypeOnlyAliasDeclaration(symbol)) {
+                    return getDeclarationOfAliasSymbol(symbol);
+                }
+            }
+            return undefined;
+        }
+        function isSymbolOfDestructuredElementOfCatchBinding(symbol) {
+            return ts.isBindingElement(symbol.valueDeclaration)
+                && ts.walkUpBindingElementsAndPatterns(symbol.valueDeclaration).parent.kind === 280;
+        }
+        function isSymbolOfDeclarationWithCollidingName(symbol) {
+            if (symbol.flags & 418 && !ts.isSourceFile(symbol.valueDeclaration)) {
+                var links = getSymbolLinks(symbol);
+                if (links.isDeclarationWithCollidingName === undefined) {
+                    var container = ts.getEnclosingBlockScopeContainer(symbol.valueDeclaration);
+                    if (ts.isStatementWithLocals(container) || isSymbolOfDestructuredElementOfCatchBinding(symbol)) {
+                        var nodeLinks_1 = getNodeLinks(symbol.valueDeclaration);
+                        if (resolveName(container.parent, symbol.escapedName, 111551, undefined, undefined, false)) {
+                            links.isDeclarationWithCollidingName = true;
+                        }
+                        else if (nodeLinks_1.flags & 262144) {
+                            var isDeclaredInLoop = nodeLinks_1.flags & 524288;
+                            var inLoopInitializer = ts.isIterationStatement(container, false);
+                            var inLoopBodyBlock = container.kind === 223 && ts.isIterationStatement(container.parent, false);
+                            links.isDeclarationWithCollidingName = !ts.isBlockScopedContainerTopLevel(container) && (!isDeclaredInLoop || (!inLoopInitializer && !inLoopBodyBlock));
+                        }
+                        else {
+                            links.isDeclarationWithCollidingName = false;
+                        }
+                    }
+                }
+                return links.isDeclarationWithCollidingName;
+            }
+            return false;
+        }
+        function getReferencedDeclarationWithCollidingName(nodeIn) {
+            if (!ts.isGeneratedIdentifier(nodeIn)) {
+                var node = ts.getParseTreeNode(nodeIn, ts.isIdentifier);
+                if (node) {
+                    var symbol = getReferencedValueSymbol(node);
+                    if (symbol && isSymbolOfDeclarationWithCollidingName(symbol)) {
+                        return symbol.valueDeclaration;
+                    }
+                }
+            }
+            return undefined;
+        }
+        function isDeclarationWithCollidingName(nodeIn) {
+            var node = ts.getParseTreeNode(nodeIn, ts.isDeclaration);
+            if (node) {
+                var symbol = getSymbolOfNode(node);
+                if (symbol) {
+                    return isSymbolOfDeclarationWithCollidingName(symbol);
+                }
+            }
+            return false;
+        }
+        function isValueAliasDeclaration(node) {
+            switch (node.kind) {
+                case 253:
+                    return isAliasResolvedToValue(getSymbolOfNode(node) || unknownSymbol);
+                case 255:
+                case 256:
+                case 258:
+                case 263:
+                    var symbol = getSymbolOfNode(node) || unknownSymbol;
+                    return isAliasResolvedToValue(symbol) && !getTypeOnlyAliasDeclaration(symbol);
+                case 260:
+                    var exportClause = node.exportClause;
+                    return !!exportClause && (ts.isNamespaceExport(exportClause) ||
+                        ts.some(exportClause.elements, isValueAliasDeclaration));
+                case 259:
+                    return node.expression && node.expression.kind === 75 ?
+                        isAliasResolvedToValue(getSymbolOfNode(node) || unknownSymbol) :
+                        true;
+            }
+            return false;
+        }
+        function isTopLevelValueImportEqualsWithEntityName(nodeIn) {
+            var node = ts.getParseTreeNode(nodeIn, ts.isImportEqualsDeclaration);
+            if (node === undefined || node.parent.kind !== 290 || !ts.isInternalModuleImportEqualsDeclaration(node)) {
+                return false;
+            }
+            var isValue = isAliasResolvedToValue(getSymbolOfNode(node));
+            return isValue && node.moduleReference && !ts.nodeIsMissing(node.moduleReference);
+        }
+        function isAliasResolvedToValue(symbol) {
+            var target = resolveAlias(symbol);
+            if (target === unknownSymbol) {
+                return true;
+            }
+            return !!(target.flags & 111551) &&
+                (compilerOptions.preserveConstEnums || !isConstEnumOrConstEnumOnlyModule(target));
+        }
+        function isConstEnumOrConstEnumOnlyModule(s) {
+            return isConstEnumSymbol(s) || !!s.constEnumOnlyModule;
+        }
+        function isReferencedAliasDeclaration(node, checkChildren) {
+            if (isAliasSymbolDeclaration(node)) {
+                var symbol = getSymbolOfNode(node);
+                if (symbol && getSymbolLinks(symbol).referenced) {
+                    return true;
+                }
+                var target = getSymbolLinks(symbol).target;
+                if (target && ts.getModifierFlags(node) & 1 &&
+                    target.flags & 111551 &&
+                    (compilerOptions.preserveConstEnums || !isConstEnumOrConstEnumOnlyModule(target))) {
+                    return true;
+                }
+            }
+            if (checkChildren) {
+                return !!ts.forEachChild(node, function (node) { return isReferencedAliasDeclaration(node, checkChildren); });
+            }
+            return false;
+        }
+        function isImplementationOfOverload(node) {
+            if (ts.nodeIsPresent(node.body)) {
+                if (ts.isGetAccessor(node) || ts.isSetAccessor(node))
+                    return false;
+                var symbol = getSymbolOfNode(node);
+                var signaturesOfSymbol = getSignaturesOfSymbol(symbol);
+                return signaturesOfSymbol.length > 1 ||
+                    (signaturesOfSymbol.length === 1 && signaturesOfSymbol[0].declaration !== node);
+            }
+            return false;
+        }
+        function isRequiredInitializedParameter(parameter) {
+            return !!strictNullChecks &&
+                !isOptionalParameter(parameter) &&
+                !ts.isJSDocParameterTag(parameter) &&
+                !!parameter.initializer &&
+                !ts.hasModifier(parameter, 92);
+        }
+        function isOptionalUninitializedParameterProperty(parameter) {
+            return strictNullChecks &&
+                isOptionalParameter(parameter) &&
+                !parameter.initializer &&
+                ts.hasModifier(parameter, 92);
+        }
+        function isExpandoFunctionDeclaration(node) {
+            var declaration = ts.getParseTreeNode(node, ts.isFunctionDeclaration);
+            if (!declaration) {
+                return false;
+            }
+            var symbol = getSymbolOfNode(declaration);
+            if (!symbol || !(symbol.flags & 16)) {
+                return false;
+            }
+            return !!ts.forEachEntry(getExportsOfSymbol(symbol), function (p) { return p.flags & 111551 && p.valueDeclaration && ts.isPropertyAccessExpression(p.valueDeclaration); });
+        }
+        function getPropertiesOfContainerFunction(node) {
+            var declaration = ts.getParseTreeNode(node, ts.isFunctionDeclaration);
+            if (!declaration) {
+                return ts.emptyArray;
+            }
+            var symbol = getSymbolOfNode(declaration);
+            return symbol && getPropertiesOfType(getTypeOfSymbol(symbol)) || ts.emptyArray;
+        }
+        function getNodeCheckFlags(node) {
+            return getNodeLinks(node).flags || 0;
+        }
+        function getEnumMemberValue(node) {
+            computeEnumMemberValues(node.parent);
+            return getNodeLinks(node).enumMemberValue;
+        }
+        function canHaveConstantValue(node) {
+            switch (node.kind) {
+                case 284:
+                case 194:
+                case 195:
+                    return true;
+            }
+            return false;
+        }
+        function getConstantValue(node) {
+            if (node.kind === 284) {
+                return getEnumMemberValue(node);
+            }
+            var symbol = getNodeLinks(node).resolvedSymbol;
+            if (symbol && (symbol.flags & 8)) {
+                var member = symbol.valueDeclaration;
+                if (ts.isEnumConst(member.parent)) {
+                    return getEnumMemberValue(member);
+                }
+            }
+            return undefined;
+        }
+        function isFunctionType(type) {
+            return !!(type.flags & 524288) && getSignaturesOfType(type, 0).length > 0;
+        }
+        function getTypeReferenceSerializationKind(typeNameIn, location) {
+            var typeName = ts.getParseTreeNode(typeNameIn, ts.isEntityName);
+            if (!typeName)
+                return ts.TypeReferenceSerializationKind.Unknown;
+            if (location) {
+                location = ts.getParseTreeNode(location);
+                if (!location)
+                    return ts.TypeReferenceSerializationKind.Unknown;
+            }
+            var valueSymbol = resolveEntityName(typeName, 111551, true, false, location);
+            var typeSymbol = resolveEntityName(typeName, 788968, true, false, location);
+            if (valueSymbol && valueSymbol === typeSymbol) {
+                var globalPromiseSymbol = getGlobalPromiseConstructorSymbol(false);
+                if (globalPromiseSymbol && valueSymbol === globalPromiseSymbol) {
+                    return ts.TypeReferenceSerializationKind.Promise;
+                }
+                var constructorType = getTypeOfSymbol(valueSymbol);
+                if (constructorType && isConstructorType(constructorType)) {
+                    return ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue;
+                }
+            }
+            if (!typeSymbol) {
+                return ts.TypeReferenceSerializationKind.Unknown;
+            }
+            var type = getDeclaredTypeOfSymbol(typeSymbol);
+            if (type === errorType) {
+                return ts.TypeReferenceSerializationKind.Unknown;
+            }
+            else if (type.flags & 3) {
+                return ts.TypeReferenceSerializationKind.ObjectType;
+            }
+            else if (isTypeAssignableToKind(type, 16384 | 98304 | 131072)) {
+                return ts.TypeReferenceSerializationKind.VoidNullableOrNeverType;
+            }
+            else if (isTypeAssignableToKind(type, 528)) {
+                return ts.TypeReferenceSerializationKind.BooleanType;
+            }
+            else if (isTypeAssignableToKind(type, 296)) {
+                return ts.TypeReferenceSerializationKind.NumberLikeType;
+            }
+            else if (isTypeAssignableToKind(type, 2112)) {
+                return ts.TypeReferenceSerializationKind.BigIntLikeType;
+            }
+            else if (isTypeAssignableToKind(type, 132)) {
+                return ts.TypeReferenceSerializationKind.StringLikeType;
+            }
+            else if (isTupleType(type)) {
+                return ts.TypeReferenceSerializationKind.ArrayLikeType;
+            }
+            else if (isTypeAssignableToKind(type, 12288)) {
+                return ts.TypeReferenceSerializationKind.ESSymbolType;
+            }
+            else if (isFunctionType(type)) {
+                return ts.TypeReferenceSerializationKind.TypeWithCallSignature;
+            }
+            else if (isArrayType(type)) {
+                return ts.TypeReferenceSerializationKind.ArrayLikeType;
+            }
+            else {
+                return ts.TypeReferenceSerializationKind.ObjectType;
+            }
+        }
+        function createTypeOfDeclaration(declarationIn, enclosingDeclaration, flags, tracker, addUndefined) {
+            var declaration = ts.getParseTreeNode(declarationIn, ts.isVariableLikeOrAccessor);
+            if (!declaration) {
+                return ts.createToken(125);
+            }
+            var symbol = getSymbolOfNode(declaration);
+            var type = symbol && !(symbol.flags & (2048 | 131072))
+                ? getWidenedLiteralType(getTypeOfSymbol(symbol))
+                : errorType;
+            if (type.flags & 8192 &&
+                type.symbol === symbol) {
+                flags |= 1048576;
+            }
+            if (addUndefined) {
+                type = getOptionalType(type);
+            }
+            return nodeBuilder.typeToTypeNode(type, enclosingDeclaration, flags | 1024, tracker);
+        }
+        function createReturnTypeOfSignatureDeclaration(signatureDeclarationIn, enclosingDeclaration, flags, tracker) {
+            var signatureDeclaration = ts.getParseTreeNode(signatureDeclarationIn, ts.isFunctionLike);
+            if (!signatureDeclaration) {
+                return ts.createToken(125);
+            }
+            var signature = getSignatureFromDeclaration(signatureDeclaration);
+            return nodeBuilder.typeToTypeNode(getReturnTypeOfSignature(signature), enclosingDeclaration, flags | 1024, tracker);
+        }
+        function createTypeOfExpression(exprIn, enclosingDeclaration, flags, tracker) {
+            var expr = ts.getParseTreeNode(exprIn, ts.isExpression);
+            if (!expr) {
+                return ts.createToken(125);
+            }
+            var type = getWidenedType(getRegularTypeOfExpression(expr));
+            return nodeBuilder.typeToTypeNode(type, enclosingDeclaration, flags | 1024, tracker);
+        }
+        function hasGlobalName(name) {
+            return globals.has(ts.escapeLeadingUnderscores(name));
+        }
+        function getReferencedValueSymbol(reference, startInDeclarationContainer) {
+            var resolvedSymbol = getNodeLinks(reference).resolvedSymbol;
+            if (resolvedSymbol) {
+                return resolvedSymbol;
+            }
+            var location = reference;
+            if (startInDeclarationContainer) {
+                var parent = reference.parent;
+                if (ts.isDeclaration(parent) && reference === parent.name) {
+                    location = getDeclarationContainer(parent);
+                }
+            }
+            return resolveName(location, reference.escapedText, 111551 | 1048576 | 2097152, undefined, undefined, true);
+        }
+        function getReferencedValueDeclaration(referenceIn) {
+            if (!ts.isGeneratedIdentifier(referenceIn)) {
+                var reference = ts.getParseTreeNode(referenceIn, ts.isIdentifier);
+                if (reference) {
+                    var symbol = getReferencedValueSymbol(reference);
+                    if (symbol) {
+                        return getExportSymbolOfValueSymbolIfExported(symbol).valueDeclaration;
+                    }
+                }
+            }
+            return undefined;
+        }
+        function isLiteralConstDeclaration(node) {
+            if (ts.isDeclarationReadonly(node) || ts.isVariableDeclaration(node) && ts.isVarConst(node)) {
+                return isFreshLiteralType(getTypeOfSymbol(getSymbolOfNode(node)));
+            }
+            return false;
+        }
+        function literalTypeToNode(type, enclosing, tracker) {
+            var enumResult = type.flags & 1024 ? nodeBuilder.symbolToExpression(type.symbol, 111551, enclosing, undefined, tracker)
+                : type === trueType ? ts.createTrue() : type === falseType && ts.createFalse();
+            return enumResult || ts.createLiteral(type.value);
+        }
+        function createLiteralConstValue(node, tracker) {
+            var type = getTypeOfSymbol(getSymbolOfNode(node));
+            return literalTypeToNode(type, node, tracker);
+        }
+        function getJsxFactoryEntity(location) {
+            return location ? (getJsxNamespace(location), (ts.getSourceFileOfNode(location).localJsxFactory || _jsxFactoryEntity)) : _jsxFactoryEntity;
+        }
+        function createResolver() {
+            var resolvedTypeReferenceDirectives = host.getResolvedTypeReferenceDirectives();
+            var fileToDirective;
+            if (resolvedTypeReferenceDirectives) {
+                fileToDirective = ts.createMap();
+                resolvedTypeReferenceDirectives.forEach(function (resolvedDirective, key) {
+                    if (!resolvedDirective || !resolvedDirective.resolvedFileName) {
+                        return;
+                    }
+                    var file = host.getSourceFile(resolvedDirective.resolvedFileName);
+                    if (file) {
+                        addReferencedFilesToTypeDirective(file, key);
+                    }
+                });
+            }
+            return {
+                getReferencedExportContainer: getReferencedExportContainer,
+                getReferencedImportDeclaration: getReferencedImportDeclaration,
+                getReferencedDeclarationWithCollidingName: getReferencedDeclarationWithCollidingName,
+                isDeclarationWithCollidingName: isDeclarationWithCollidingName,
+                isValueAliasDeclaration: function (node) {
+                    node = ts.getParseTreeNode(node);
+                    return node ? isValueAliasDeclaration(node) : true;
+                },
+                hasGlobalName: hasGlobalName,
+                isReferencedAliasDeclaration: function (node, checkChildren) {
+                    node = ts.getParseTreeNode(node);
+                    return node ? isReferencedAliasDeclaration(node, checkChildren) : true;
+                },
+                getNodeCheckFlags: function (node) {
+                    node = ts.getParseTreeNode(node);
+                    return node ? getNodeCheckFlags(node) : 0;
+                },
+                isTopLevelValueImportEqualsWithEntityName: isTopLevelValueImportEqualsWithEntityName,
+                isDeclarationVisible: isDeclarationVisible,
+                isImplementationOfOverload: isImplementationOfOverload,
+                isRequiredInitializedParameter: isRequiredInitializedParameter,
+                isOptionalUninitializedParameterProperty: isOptionalUninitializedParameterProperty,
+                isExpandoFunctionDeclaration: isExpandoFunctionDeclaration,
+                getPropertiesOfContainerFunction: getPropertiesOfContainerFunction,
+                createTypeOfDeclaration: createTypeOfDeclaration,
+                createReturnTypeOfSignatureDeclaration: createReturnTypeOfSignatureDeclaration,
+                createTypeOfExpression: createTypeOfExpression,
+                createLiteralConstValue: createLiteralConstValue,
+                isSymbolAccessible: isSymbolAccessible,
+                isEntityNameVisible: isEntityNameVisible,
+                getConstantValue: function (nodeIn) {
+                    var node = ts.getParseTreeNode(nodeIn, canHaveConstantValue);
+                    return node ? getConstantValue(node) : undefined;
+                },
+                collectLinkedAliases: collectLinkedAliases,
+                getReferencedValueDeclaration: getReferencedValueDeclaration,
+                getTypeReferenceSerializationKind: getTypeReferenceSerializationKind,
+                isOptionalParameter: isOptionalParameter,
+                moduleExportsSomeValue: moduleExportsSomeValue,
+                isArgumentsLocalBinding: isArgumentsLocalBinding,
+                getExternalModuleFileFromDeclaration: getExternalModuleFileFromDeclaration,
+                getTypeReferenceDirectivesForEntityName: getTypeReferenceDirectivesForEntityName,
+                getTypeReferenceDirectivesForSymbol: getTypeReferenceDirectivesForSymbol,
+                isLiteralConstDeclaration: isLiteralConstDeclaration,
+                isLateBound: function (nodeIn) {
+                    var node = ts.getParseTreeNode(nodeIn, ts.isDeclaration);
+                    var symbol = node && getSymbolOfNode(node);
+                    return !!(symbol && ts.getCheckFlags(symbol) & 4096);
+                },
+                getJsxFactoryEntity: getJsxFactoryEntity,
+                getAllAccessorDeclarations: function (accessor) {
+                    accessor = ts.getParseTreeNode(accessor, ts.isGetOrSetAccessorDeclaration);
+                    var otherKind = accessor.kind === 164 ? 163 : 164;
+                    var otherAccessor = ts.getDeclarationOfKind(getSymbolOfNode(accessor), otherKind);
+                    var firstAccessor = otherAccessor && (otherAccessor.pos < accessor.pos) ? otherAccessor : accessor;
+                    var secondAccessor = otherAccessor && (otherAccessor.pos < accessor.pos) ? accessor : otherAccessor;
+                    var setAccessor = accessor.kind === 164 ? accessor : otherAccessor;
+                    var getAccessor = accessor.kind === 163 ? accessor : otherAccessor;
+                    return {
+                        firstAccessor: firstAccessor,
+                        secondAccessor: secondAccessor,
+                        setAccessor: setAccessor,
+                        getAccessor: getAccessor
+                    };
+                },
+                getSymbolOfExternalModuleSpecifier: function (moduleName) { return resolveExternalModuleNameWorker(moduleName, moduleName, undefined); },
+                isBindingCapturedByNode: function (node, decl) {
+                    var parseNode = ts.getParseTreeNode(node);
+                    var parseDecl = ts.getParseTreeNode(decl);
+                    return !!parseNode && !!parseDecl && (ts.isVariableDeclaration(parseDecl) || ts.isBindingElement(parseDecl)) && isBindingCapturedByNode(parseNode, parseDecl);
+                },
+                getDeclarationStatementsForSourceFile: function (node, flags, tracker, bundled) {
+                    var n = ts.getParseTreeNode(node);
+                    ts.Debug.assert(n && n.kind === 290, "Non-sourcefile node passed into getDeclarationsForSourceFile");
+                    var sym = getSymbolOfNode(node);
+                    if (!sym) {
+                        return !node.locals ? [] : nodeBuilder.symbolTableToDeclarationStatements(node.locals, node, flags, tracker, bundled);
+                    }
+                    return !sym.exports ? [] : nodeBuilder.symbolTableToDeclarationStatements(sym.exports, node, flags, tracker, bundled);
+                },
+                isImportRequiredByAugmentation: isImportRequiredByAugmentation,
+            };
+            function isImportRequiredByAugmentation(node) {
+                var file = ts.getSourceFileOfNode(node);
+                if (!file.symbol)
+                    return false;
+                var importTarget = getExternalModuleFileFromDeclaration(node);
+                if (!importTarget)
+                    return false;
+                if (importTarget === file)
+                    return false;
+                var exports = getExportsOfModule(file.symbol);
+                for (var _i = 0, _a = ts.arrayFrom(exports.values()); _i < _a.length; _i++) {
+                    var s = _a[_i];
+                    if (s.mergeId) {
+                        var merged = getMergedSymbol(s);
+                        for (var _b = 0, _c = merged.declarations; _b < _c.length; _b++) {
+                            var d = _c[_b];
+                            var declFile = ts.getSourceFileOfNode(d);
+                            if (declFile === importTarget) {
+                                return true;
+                            }
+                        }
+                    }
+                }
+                return false;
+            }
+            function isInHeritageClause(node) {
+                return node.parent && node.parent.kind === 216 && node.parent.parent && node.parent.parent.kind === 279;
+            }
+            function getTypeReferenceDirectivesForEntityName(node) {
+                if (!fileToDirective) {
+                    return undefined;
+                }
+                var meaning = 788968 | 1920;
+                if ((node.kind === 75 && isInTypeQuery(node)) || (node.kind === 194 && !isInHeritageClause(node))) {
+                    meaning = 111551 | 1048576;
+                }
+                var symbol = resolveEntityName(node, meaning, true);
+                return symbol && symbol !== unknownSymbol ? getTypeReferenceDirectivesForSymbol(symbol, meaning) : undefined;
+            }
+            function getTypeReferenceDirectivesForSymbol(symbol, meaning) {
+                if (!fileToDirective) {
+                    return undefined;
+                }
+                if (!isSymbolFromTypeDeclarationFile(symbol)) {
+                    return undefined;
+                }
+                var typeReferenceDirectives;
+                for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+                    var decl = _a[_i];
+                    if (decl.symbol && decl.symbol.flags & meaning) {
+                        var file = ts.getSourceFileOfNode(decl);
+                        var typeReferenceDirective = fileToDirective.get(file.path);
+                        if (typeReferenceDirective) {
+                            (typeReferenceDirectives || (typeReferenceDirectives = [])).push(typeReferenceDirective);
+                        }
+                        else {
+                            return undefined;
+                        }
+                    }
+                }
+                return typeReferenceDirectives;
+            }
+            function isSymbolFromTypeDeclarationFile(symbol) {
+                if (!symbol.declarations) {
+                    return false;
+                }
+                var current = symbol;
+                while (true) {
+                    var parent = getParentOfSymbol(current);
+                    if (parent) {
+                        current = parent;
+                    }
+                    else {
+                        break;
+                    }
+                }
+                if (current.valueDeclaration && current.valueDeclaration.kind === 290 && current.flags & 512) {
+                    return false;
+                }
+                for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+                    var decl = _a[_i];
+                    var file = ts.getSourceFileOfNode(decl);
+                    if (fileToDirective.has(file.path)) {
+                        return true;
+                    }
+                }
+                return false;
+            }
+            function addReferencedFilesToTypeDirective(file, key) {
+                if (fileToDirective.has(file.path))
+                    return;
+                fileToDirective.set(file.path, key);
+                for (var _i = 0, _a = file.referencedFiles; _i < _a.length; _i++) {
+                    var fileName = _a[_i].fileName;
+                    var resolvedFile = ts.resolveTripleslashReference(fileName, file.originalFileName);
+                    var referencedFile = host.getSourceFile(resolvedFile);
+                    if (referencedFile) {
+                        addReferencedFilesToTypeDirective(referencedFile, key);
+                    }
+                }
+            }
+        }
+        function getExternalModuleFileFromDeclaration(declaration) {
+            var specifier = declaration.kind === 249 ? ts.tryCast(declaration.name, ts.isStringLiteral) : ts.getExternalModuleName(declaration);
+            var moduleSymbol = resolveExternalModuleNameWorker(specifier, specifier, undefined);
+            if (!moduleSymbol) {
+                return undefined;
+            }
+            return ts.getDeclarationOfKind(moduleSymbol, 290);
+        }
+        function initializeTypeChecker() {
+            for (var _i = 0, _a = host.getSourceFiles(); _i < _a.length; _i++) {
+                var file = _a[_i];
+                ts.bindSourceFile(file, compilerOptions);
+            }
+            amalgamatedDuplicates = ts.createMap();
+            var augmentations;
+            for (var _b = 0, _c = host.getSourceFiles(); _b < _c.length; _b++) {
+                var file = _c[_b];
+                if (file.redirectInfo) {
+                    continue;
+                }
+                if (!ts.isExternalOrCommonJsModule(file)) {
+                    var fileGlobalThisSymbol = file.locals.get("globalThis");
+                    if (fileGlobalThisSymbol) {
+                        for (var _d = 0, _e = fileGlobalThisSymbol.declarations; _d < _e.length; _d++) {
+                            var declaration = _e[_d];
+                            diagnostics.add(ts.createDiagnosticForNode(declaration, ts.Diagnostics.Declaration_name_conflicts_with_built_in_global_identifier_0, "globalThis"));
+                        }
+                    }
+                    mergeSymbolTable(globals, file.locals);
+                }
+                if (file.jsGlobalAugmentations) {
+                    mergeSymbolTable(globals, file.jsGlobalAugmentations);
+                }
+                if (file.patternAmbientModules && file.patternAmbientModules.length) {
+                    patternAmbientModules = ts.concatenate(patternAmbientModules, file.patternAmbientModules);
+                }
+                if (file.moduleAugmentations.length) {
+                    (augmentations || (augmentations = [])).push(file.moduleAugmentations);
+                }
+                if (file.symbol && file.symbol.globalExports) {
+                    var source = file.symbol.globalExports;
+                    source.forEach(function (sourceSymbol, id) {
+                        if (!globals.has(id)) {
+                            globals.set(id, sourceSymbol);
+                        }
+                    });
+                }
+            }
+            if (augmentations) {
+                for (var _f = 0, augmentations_1 = augmentations; _f < augmentations_1.length; _f++) {
+                    var list = augmentations_1[_f];
+                    for (var _g = 0, list_1 = list; _g < list_1.length; _g++) {
+                        var augmentation = list_1[_g];
+                        if (!ts.isGlobalScopeAugmentation(augmentation.parent))
+                            continue;
+                        mergeModuleAugmentation(augmentation);
+                    }
+                }
+            }
+            addToSymbolTable(globals, builtinGlobals, ts.Diagnostics.Declaration_name_conflicts_with_built_in_global_identifier_0);
+            getSymbolLinks(undefinedSymbol).type = undefinedWideningType;
+            getSymbolLinks(argumentsSymbol).type = getGlobalType("IArguments", 0, true);
+            getSymbolLinks(unknownSymbol).type = errorType;
+            getSymbolLinks(globalThisSymbol).type = createObjectType(16, globalThisSymbol);
+            globalArrayType = getGlobalType("Array", 1, true);
+            globalObjectType = getGlobalType("Object", 0, true);
+            globalFunctionType = getGlobalType("Function", 0, true);
+            globalCallableFunctionType = strictBindCallApply && getGlobalType("CallableFunction", 0, true) || globalFunctionType;
+            globalNewableFunctionType = strictBindCallApply && getGlobalType("NewableFunction", 0, true) || globalFunctionType;
+            globalStringType = getGlobalType("String", 0, true);
+            globalNumberType = getGlobalType("Number", 0, true);
+            globalBooleanType = getGlobalType("Boolean", 0, true);
+            globalRegExpType = getGlobalType("RegExp", 0, true);
+            anyArrayType = createArrayType(anyType);
+            autoArrayType = createArrayType(autoType);
+            if (autoArrayType === emptyObjectType) {
+                autoArrayType = createAnonymousType(undefined, emptySymbols, ts.emptyArray, ts.emptyArray, undefined, undefined);
+            }
+            globalReadonlyArrayType = getGlobalTypeOrUndefined("ReadonlyArray", 1) || globalArrayType;
+            anyReadonlyArrayType = globalReadonlyArrayType ? createTypeFromGenericGlobalType(globalReadonlyArrayType, [anyType]) : anyArrayType;
+            globalThisType = getGlobalTypeOrUndefined("ThisType", 1);
+            if (augmentations) {
+                for (var _h = 0, augmentations_2 = augmentations; _h < augmentations_2.length; _h++) {
+                    var list = augmentations_2[_h];
+                    for (var _j = 0, list_2 = list; _j < list_2.length; _j++) {
+                        var augmentation = list_2[_j];
+                        if (ts.isGlobalScopeAugmentation(augmentation.parent))
+                            continue;
+                        mergeModuleAugmentation(augmentation);
+                    }
+                }
+            }
+            amalgamatedDuplicates.forEach(function (_a) {
+                var firstFile = _a.firstFile, secondFile = _a.secondFile, conflictingSymbols = _a.conflictingSymbols;
+                if (conflictingSymbols.size < 8) {
+                    conflictingSymbols.forEach(function (_a, symbolName) {
+                        var isBlockScoped = _a.isBlockScoped, firstFileLocations = _a.firstFileLocations, secondFileLocations = _a.secondFileLocations;
+                        var message = isBlockScoped ? ts.Diagnostics.Cannot_redeclare_block_scoped_variable_0 : ts.Diagnostics.Duplicate_identifier_0;
+                        for (var _i = 0, firstFileLocations_1 = firstFileLocations; _i < firstFileLocations_1.length; _i++) {
+                            var node = firstFileLocations_1[_i];
+                            addDuplicateDeclarationError(node, message, symbolName, secondFileLocations);
+                        }
+                        for (var _b = 0, secondFileLocations_1 = secondFileLocations; _b < secondFileLocations_1.length; _b++) {
+                            var node = secondFileLocations_1[_b];
+                            addDuplicateDeclarationError(node, message, symbolName, firstFileLocations);
+                        }
+                    });
+                }
+                else {
+                    var list = ts.arrayFrom(conflictingSymbols.keys()).join(", ");
+                    diagnostics.add(ts.addRelatedInfo(ts.createDiagnosticForNode(firstFile, ts.Diagnostics.Definitions_of_the_following_identifiers_conflict_with_those_in_another_file_Colon_0, list), ts.createDiagnosticForNode(secondFile, ts.Diagnostics.Conflicts_are_in_this_file)));
+                    diagnostics.add(ts.addRelatedInfo(ts.createDiagnosticForNode(secondFile, ts.Diagnostics.Definitions_of_the_following_identifiers_conflict_with_those_in_another_file_Colon_0, list), ts.createDiagnosticForNode(firstFile, ts.Diagnostics.Conflicts_are_in_this_file)));
+                }
+            });
+            amalgamatedDuplicates = undefined;
+        }
+        function checkExternalEmitHelpers(location, helpers) {
+            if ((requestedExternalEmitHelpers & helpers) !== helpers && compilerOptions.importHelpers) {
+                var sourceFile = ts.getSourceFileOfNode(location);
+                if (ts.isEffectiveExternalModule(sourceFile, compilerOptions) && !(location.flags & 8388608)) {
+                    var helpersModule = resolveHelpersModule(sourceFile, location);
+                    if (helpersModule !== unknownSymbol) {
+                        var uncheckedHelpers = helpers & ~requestedExternalEmitHelpers;
+                        for (var helper = 1; helper <= 1048576; helper <<= 1) {
+                            if (uncheckedHelpers & helper) {
+                                var name = getHelperName(helper);
+                                var symbol = getSymbol(helpersModule.exports, ts.escapeLeadingUnderscores(name), 111551);
+                                if (!symbol) {
+                                    error(location, ts.Diagnostics.This_syntax_requires_an_imported_helper_named_1_which_does_not_exist_in_0_Consider_upgrading_your_version_of_0, ts.externalHelpersModuleNameText, name);
+                                }
+                            }
+                        }
+                    }
+                    requestedExternalEmitHelpers |= helpers;
+                }
+            }
+        }
+        function getHelperName(helper) {
+            switch (helper) {
+                case 1: return "__extends";
+                case 2: return "__assign";
+                case 4: return "__rest";
+                case 8: return "__decorate";
+                case 16: return "__metadata";
+                case 32: return "__param";
+                case 64: return "__awaiter";
+                case 128: return "__generator";
+                case 256: return "__values";
+                case 512: return "__read";
+                case 1024: return "__spread";
+                case 2048: return "__spreadArrays";
+                case 4096: return "__await";
+                case 8192: return "__asyncGenerator";
+                case 16384: return "__asyncDelegator";
+                case 32768: return "__asyncValues";
+                case 65536: return "__exportStar";
+                case 131072: return "__makeTemplateObject";
+                case 262144: return "__classPrivateFieldGet";
+                case 524288: return "__classPrivateFieldSet";
+                case 1048576: return "__createBinding";
+                default: return ts.Debug.fail("Unrecognized helper");
+            }
+        }
+        function resolveHelpersModule(node, errorNode) {
+            if (!externalHelpersModule) {
+                externalHelpersModule = resolveExternalModule(node, ts.externalHelpersModuleNameText, ts.Diagnostics.This_syntax_requires_an_imported_helper_but_module_0_cannot_be_found, errorNode) || unknownSymbol;
+            }
+            return externalHelpersModule;
+        }
+        function checkGrammarDecoratorsAndModifiers(node) {
+            return checkGrammarDecorators(node) || checkGrammarModifiers(node);
+        }
+        function checkGrammarDecorators(node) {
+            if (!node.decorators) {
+                return false;
+            }
+            if (!ts.nodeCanBeDecorated(node, node.parent, node.parent.parent)) {
+                if (node.kind === 161 && !ts.nodeIsPresent(node.body)) {
+                    return grammarErrorOnFirstToken(node, ts.Diagnostics.A_decorator_can_only_decorate_a_method_implementation_not_an_overload);
+                }
+                else {
+                    return grammarErrorOnFirstToken(node, ts.Diagnostics.Decorators_are_not_valid_here);
+                }
+            }
+            else if (node.kind === 163 || node.kind === 164) {
+                var accessors = ts.getAllAccessorDeclarations(node.parent.members, node);
+                if (accessors.firstAccessor.decorators && node === accessors.secondAccessor) {
+                    return grammarErrorOnFirstToken(node, ts.Diagnostics.Decorators_cannot_be_applied_to_multiple_get_Slashset_accessors_of_the_same_name);
+                }
+            }
+            return false;
+        }
+        function checkGrammarModifiers(node) {
+            var quickResult = reportObviousModifierErrors(node);
+            if (quickResult !== undefined) {
+                return quickResult;
+            }
+            var lastStatic, lastDeclare, lastAsync, lastReadonly;
+            var flags = 0;
+            for (var _i = 0, _a = node.modifiers; _i < _a.length; _i++) {
+                var modifier = _a[_i];
+                if (modifier.kind !== 138) {
+                    if (node.kind === 158 || node.kind === 160) {
+                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_type_member, ts.tokenToString(modifier.kind));
+                    }
+                    if (node.kind === 167) {
+                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_an_index_signature, ts.tokenToString(modifier.kind));
+                    }
+                }
+                switch (modifier.kind) {
+                    case 81:
+                        if (node.kind !== 248) {
+                            return grammarErrorOnNode(node, ts.Diagnostics.A_class_member_cannot_have_the_0_keyword, ts.tokenToString(81));
+                        }
+                        break;
+                    case 119:
+                    case 118:
+                    case 117:
+                        var text = visibilityToString(ts.modifierToFlag(modifier.kind));
+                        if (flags & 28) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics.Accessibility_modifier_already_seen);
+                        }
+                        else if (flags & 32) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, text, "static");
+                        }
+                        else if (flags & 64) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, text, "readonly");
+                        }
+                        else if (flags & 256) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, text, "async");
+                        }
+                        else if (node.parent.kind === 250 || node.parent.kind === 290) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_module_or_namespace_element, text);
+                        }
+                        else if (flags & 128) {
+                            if (modifier.kind === 117) {
+                                return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_with_1_modifier, text, "abstract");
+                            }
+                            else {
+                                return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, text, "abstract");
+                            }
+                        }
+                        else if (ts.isPrivateIdentifierPropertyDeclaration(node)) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics.An_accessibility_modifier_cannot_be_used_with_a_private_identifier);
+                        }
+                        flags |= ts.modifierToFlag(modifier.kind);
+                        break;
+                    case 120:
+                        if (flags & 32) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "static");
+                        }
+                        else if (flags & 64) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, "static", "readonly");
+                        }
+                        else if (flags & 256) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, "static", "async");
+                        }
+                        else if (node.parent.kind === 250 || node.parent.kind === 290) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_module_or_namespace_element, "static");
+                        }
+                        else if (node.kind === 156) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_parameter, "static");
+                        }
+                        else if (flags & 128) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_with_1_modifier, "static", "abstract");
+                        }
+                        else if (ts.isPrivateIdentifierPropertyDeclaration(node)) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_with_a_private_identifier, "static");
+                        }
+                        flags |= 32;
+                        lastStatic = modifier;
+                        break;
+                    case 138:
+                        if (flags & 64) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "readonly");
+                        }
+                        else if (node.kind !== 159 && node.kind !== 158 && node.kind !== 167 && node.kind !== 156) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics.readonly_modifier_can_only_appear_on_a_property_declaration_or_index_signature);
+                        }
+                        flags |= 64;
+                        lastReadonly = modifier;
+                        break;
+                    case 89:
+                        if (flags & 1) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "export");
+                        }
+                        else if (flags & 2) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, "export", "declare");
+                        }
+                        else if (flags & 128) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, "export", "abstract");
+                        }
+                        else if (flags & 256) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, "export", "async");
+                        }
+                        else if (ts.isClassLike(node.parent)) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_class_element, "export");
+                        }
+                        else if (node.kind === 156) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_parameter, "export");
+                        }
+                        flags |= 1;
+                        break;
+                    case 84:
+                        var container = node.parent.kind === 290 ? node.parent : node.parent.parent;
+                        if (container.kind === 249 && !ts.isAmbientModule(container)) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics.A_default_export_can_only_be_used_in_an_ECMAScript_style_module);
+                        }
+                        flags |= 512;
+                        break;
+                    case 130:
+                        if (flags & 2) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "declare");
+                        }
+                        else if (flags & 256) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_in_an_ambient_context, "async");
+                        }
+                        else if (ts.isClassLike(node.parent) && !ts.isPropertyDeclaration(node)) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_class_element, "declare");
+                        }
+                        else if (node.kind === 156) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_parameter, "declare");
+                        }
+                        else if ((node.parent.flags & 8388608) && node.parent.kind === 250) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics.A_declare_modifier_cannot_be_used_in_an_already_ambient_context);
+                        }
+                        else if (ts.isPrivateIdentifierPropertyDeclaration(node)) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_with_a_private_identifier, "declare");
+                        }
+                        flags |= 2;
+                        lastDeclare = modifier;
+                        break;
+                    case 122:
+                        if (flags & 128) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "abstract");
+                        }
+                        if (node.kind !== 245) {
+                            if (node.kind !== 161 &&
+                                node.kind !== 159 &&
+                                node.kind !== 163 &&
+                                node.kind !== 164) {
+                                return grammarErrorOnNode(modifier, ts.Diagnostics.abstract_modifier_can_only_appear_on_a_class_method_or_property_declaration);
+                            }
+                            if (!(node.parent.kind === 245 && ts.hasModifier(node.parent, 128))) {
+                                return grammarErrorOnNode(modifier, ts.Diagnostics.Abstract_methods_can_only_appear_within_an_abstract_class);
+                            }
+                            if (flags & 32) {
+                                return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_with_1_modifier, "static", "abstract");
+                            }
+                            if (flags & 8) {
+                                return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_with_1_modifier, "private", "abstract");
+                            }
+                        }
+                        if (ts.isNamedDeclaration(node) && node.name.kind === 76) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_with_a_private_identifier, "abstract");
+                        }
+                        flags |= 128;
+                        break;
+                    case 126:
+                        if (flags & 256) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "async");
+                        }
+                        else if (flags & 2 || node.parent.flags & 8388608) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_in_an_ambient_context, "async");
+                        }
+                        else if (node.kind === 156) {
+                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_parameter, "async");
+                        }
+                        flags |= 256;
+                        lastAsync = modifier;
+                        break;
+                }
+            }
+            if (node.kind === 162) {
+                if (flags & 32) {
+                    return grammarErrorOnNode(lastStatic, ts.Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "static");
+                }
+                if (flags & 128) {
+                    return grammarErrorOnNode(lastStatic, ts.Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "abstract");
+                }
+                else if (flags & 256) {
+                    return grammarErrorOnNode(lastAsync, ts.Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "async");
+                }
+                else if (flags & 64) {
+                    return grammarErrorOnNode(lastReadonly, ts.Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "readonly");
+                }
+                return false;
+            }
+            else if ((node.kind === 254 || node.kind === 253) && flags & 2) {
+                return grammarErrorOnNode(lastDeclare, ts.Diagnostics.A_0_modifier_cannot_be_used_with_an_import_declaration, "declare");
+            }
+            else if (node.kind === 156 && (flags & 92) && ts.isBindingPattern(node.name)) {
+                return grammarErrorOnNode(node, ts.Diagnostics.A_parameter_property_may_not_be_declared_using_a_binding_pattern);
+            }
+            else if (node.kind === 156 && (flags & 92) && node.dotDotDotToken) {
+                return grammarErrorOnNode(node, ts.Diagnostics.A_parameter_property_cannot_be_declared_using_a_rest_parameter);
+            }
+            if (flags & 256) {
+                return checkGrammarAsyncModifier(node, lastAsync);
+            }
+            return false;
+        }
+        function reportObviousModifierErrors(node) {
+            return !node.modifiers
+                ? false
+                : shouldReportBadModifier(node)
+                    ? grammarErrorOnFirstToken(node, ts.Diagnostics.Modifiers_cannot_appear_here)
+                    : undefined;
+        }
+        function shouldReportBadModifier(node) {
+            switch (node.kind) {
+                case 163:
+                case 164:
+                case 162:
+                case 159:
+                case 158:
+                case 161:
+                case 160:
+                case 167:
+                case 249:
+                case 254:
+                case 253:
+                case 260:
+                case 259:
+                case 201:
+                case 202:
+                case 156:
+                    return false;
+                default:
+                    if (node.parent.kind === 250 || node.parent.kind === 290) {
+                        return false;
+                    }
+                    switch (node.kind) {
+                        case 244:
+                            return nodeHasAnyModifiersExcept(node, 126);
+                        case 245:
+                            return nodeHasAnyModifiersExcept(node, 122);
+                        case 246:
+                        case 225:
+                        case 247:
+                            return true;
+                        case 248:
+                            return nodeHasAnyModifiersExcept(node, 81);
+                        default:
+                            ts.Debug.fail();
+                            return false;
+                    }
+            }
+        }
+        function nodeHasAnyModifiersExcept(node, allowedModifier) {
+            return node.modifiers.length > 1 || node.modifiers[0].kind !== allowedModifier;
+        }
+        function checkGrammarAsyncModifier(node, asyncModifier) {
+            switch (node.kind) {
+                case 161:
+                case 244:
+                case 201:
+                case 202:
+                    return false;
+            }
+            return grammarErrorOnNode(asyncModifier, ts.Diagnostics._0_modifier_cannot_be_used_here, "async");
+        }
+        function checkGrammarForDisallowedTrailingComma(list, diag) {
+            if (diag === void 0) { diag = ts.Diagnostics.Trailing_comma_not_allowed; }
+            if (list && list.hasTrailingComma) {
+                return grammarErrorAtPos(list[0], list.end - ",".length, ",".length, diag);
+            }
+            return false;
+        }
+        function checkGrammarTypeParameterList(typeParameters, file) {
+            if (typeParameters && typeParameters.length === 0) {
+                var start = typeParameters.pos - "<".length;
+                var end = ts.skipTrivia(file.text, typeParameters.end) + ">".length;
+                return grammarErrorAtPos(file, start, end - start, ts.Diagnostics.Type_parameter_list_cannot_be_empty);
+            }
+            return false;
+        }
+        function checkGrammarParameterList(parameters) {
+            var seenOptionalParameter = false;
+            var parameterCount = parameters.length;
+            for (var i = 0; i < parameterCount; i++) {
+                var parameter = parameters[i];
+                if (parameter.dotDotDotToken) {
+                    if (i !== (parameterCount - 1)) {
+                        return grammarErrorOnNode(parameter.dotDotDotToken, ts.Diagnostics.A_rest_parameter_must_be_last_in_a_parameter_list);
+                    }
+                    if (!(parameter.flags & 8388608)) {
+                        checkGrammarForDisallowedTrailingComma(parameters, ts.Diagnostics.A_rest_parameter_or_binding_pattern_may_not_have_a_trailing_comma);
+                    }
+                    if (parameter.questionToken) {
+                        return grammarErrorOnNode(parameter.questionToken, ts.Diagnostics.A_rest_parameter_cannot_be_optional);
+                    }
+                    if (parameter.initializer) {
+                        return grammarErrorOnNode(parameter.name, ts.Diagnostics.A_rest_parameter_cannot_have_an_initializer);
+                    }
+                }
+                else if (parameter.questionToken) {
+                    seenOptionalParameter = true;
+                    if (parameter.initializer) {
+                        return grammarErrorOnNode(parameter.name, ts.Diagnostics.Parameter_cannot_have_question_mark_and_initializer);
+                    }
+                }
+                else if (seenOptionalParameter && !parameter.initializer) {
+                    return grammarErrorOnNode(parameter.name, ts.Diagnostics.A_required_parameter_cannot_follow_an_optional_parameter);
+                }
+            }
+        }
+        function getNonSimpleParameters(parameters) {
+            return ts.filter(parameters, function (parameter) { return !!parameter.initializer || ts.isBindingPattern(parameter.name) || ts.isRestParameter(parameter); });
+        }
+        function checkGrammarForUseStrictSimpleParameterList(node) {
+            if (languageVersion >= 3) {
+                var useStrictDirective_1 = node.body && ts.isBlock(node.body) && ts.findUseStrictPrologue(node.body.statements);
+                if (useStrictDirective_1) {
+                    var nonSimpleParameters = getNonSimpleParameters(node.parameters);
+                    if (ts.length(nonSimpleParameters)) {
+                        ts.forEach(nonSimpleParameters, function (parameter) {
+                            ts.addRelatedInfo(error(parameter, ts.Diagnostics.This_parameter_is_not_allowed_with_use_strict_directive), ts.createDiagnosticForNode(useStrictDirective_1, ts.Diagnostics.use_strict_directive_used_here));
+                        });
+                        var diagnostics_1 = nonSimpleParameters.map(function (parameter, index) { return (index === 0 ? ts.createDiagnosticForNode(parameter, ts.Diagnostics.Non_simple_parameter_declared_here) : ts.createDiagnosticForNode(parameter, ts.Diagnostics.and_here)); });
+                        ts.addRelatedInfo.apply(void 0, __spreadArrays([error(useStrictDirective_1, ts.Diagnostics.use_strict_directive_cannot_be_used_with_non_simple_parameter_list)], diagnostics_1));
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
+        function checkGrammarFunctionLikeDeclaration(node) {
+            var file = ts.getSourceFileOfNode(node);
+            return checkGrammarDecoratorsAndModifiers(node) || checkGrammarTypeParameterList(node.typeParameters, file) ||
+                checkGrammarParameterList(node.parameters) || checkGrammarArrowFunction(node, file) ||
+                (ts.isFunctionLikeDeclaration(node) && checkGrammarForUseStrictSimpleParameterList(node));
+        }
+        function checkGrammarClassLikeDeclaration(node) {
+            var file = ts.getSourceFileOfNode(node);
+            return checkGrammarClassDeclarationHeritageClauses(node) || checkGrammarTypeParameterList(node.typeParameters, file);
+        }
+        function checkGrammarArrowFunction(node, file) {
+            if (!ts.isArrowFunction(node)) {
+                return false;
+            }
+            var equalsGreaterThanToken = node.equalsGreaterThanToken;
+            var startLine = ts.getLineAndCharacterOfPosition(file, equalsGreaterThanToken.pos).line;
+            var endLine = ts.getLineAndCharacterOfPosition(file, equalsGreaterThanToken.end).line;
+            return startLine !== endLine && grammarErrorOnNode(equalsGreaterThanToken, ts.Diagnostics.Line_terminator_not_permitted_before_arrow);
+        }
+        function checkGrammarIndexSignatureParameters(node) {
+            var parameter = node.parameters[0];
+            if (node.parameters.length !== 1) {
+                if (parameter) {
+                    return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_must_have_exactly_one_parameter);
+                }
+                else {
+                    return grammarErrorOnNode(node, ts.Diagnostics.An_index_signature_must_have_exactly_one_parameter);
+                }
+            }
+            checkGrammarForDisallowedTrailingComma(node.parameters, ts.Diagnostics.An_index_signature_cannot_have_a_trailing_comma);
+            if (parameter.dotDotDotToken) {
+                return grammarErrorOnNode(parameter.dotDotDotToken, ts.Diagnostics.An_index_signature_cannot_have_a_rest_parameter);
+            }
+            if (ts.hasModifiers(parameter)) {
+                return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_parameter_cannot_have_an_accessibility_modifier);
+            }
+            if (parameter.questionToken) {
+                return grammarErrorOnNode(parameter.questionToken, ts.Diagnostics.An_index_signature_parameter_cannot_have_a_question_mark);
+            }
+            if (parameter.initializer) {
+                return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_parameter_cannot_have_an_initializer);
+            }
+            if (!parameter.type) {
+                return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_parameter_must_have_a_type_annotation);
+            }
+            if (parameter.type.kind !== 143 && parameter.type.kind !== 140) {
+                var type = getTypeFromTypeNode(parameter.type);
+                if (type.flags & 4 || type.flags & 8) {
+                    return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_parameter_type_cannot_be_a_type_alias_Consider_writing_0_Colon_1_Colon_2_instead, ts.getTextOfNode(parameter.name), typeToString(type), typeToString(node.type ? getTypeFromTypeNode(node.type) : anyType));
+                }
+                if (type.flags & 1048576 && allTypesAssignableToKind(type, 384, true)) {
+                    return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_parameter_type_cannot_be_a_union_type_Consider_using_a_mapped_object_type_instead);
+                }
+                return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_parameter_type_must_be_either_string_or_number);
+            }
+            if (!node.type) {
+                return grammarErrorOnNode(node, ts.Diagnostics.An_index_signature_must_have_a_type_annotation);
+            }
+            return false;
+        }
+        function checkGrammarIndexSignature(node) {
+            return checkGrammarDecoratorsAndModifiers(node) || checkGrammarIndexSignatureParameters(node);
+        }
+        function checkGrammarForAtLeastOneTypeArgument(node, typeArguments) {
+            if (typeArguments && typeArguments.length === 0) {
+                var sourceFile = ts.getSourceFileOfNode(node);
+                var start = typeArguments.pos - "<".length;
+                var end = ts.skipTrivia(sourceFile.text, typeArguments.end) + ">".length;
+                return grammarErrorAtPos(sourceFile, start, end - start, ts.Diagnostics.Type_argument_list_cannot_be_empty);
+            }
+            return false;
+        }
+        function checkGrammarTypeArguments(node, typeArguments) {
+            return checkGrammarForDisallowedTrailingComma(typeArguments) ||
+                checkGrammarForAtLeastOneTypeArgument(node, typeArguments);
+        }
+        function checkGrammarTaggedTemplateChain(node) {
+            if (node.questionDotToken || node.flags & 32) {
+                return grammarErrorOnNode(node.template, ts.Diagnostics.Tagged_template_expressions_are_not_permitted_in_an_optional_chain);
+            }
+            return false;
+        }
+        function checkGrammarForOmittedArgument(args) {
+            if (args) {
+                for (var _i = 0, args_4 = args; _i < args_4.length; _i++) {
+                    var arg = args_4[_i];
+                    if (arg.kind === 215) {
+                        return grammarErrorAtPos(arg, arg.pos, 0, ts.Diagnostics.Argument_expression_expected);
+                    }
+                }
+            }
+            return false;
+        }
+        function checkGrammarArguments(args) {
+            return checkGrammarForOmittedArgument(args);
+        }
+        function checkGrammarHeritageClause(node) {
+            var types = node.types;
+            if (checkGrammarForDisallowedTrailingComma(types)) {
+                return true;
+            }
+            if (types && types.length === 0) {
+                var listType = ts.tokenToString(node.token);
+                return grammarErrorAtPos(node, types.pos, 0, ts.Diagnostics._0_list_cannot_be_empty, listType);
+            }
+            return ts.some(types, checkGrammarExpressionWithTypeArguments);
+        }
+        function checkGrammarExpressionWithTypeArguments(node) {
+            return checkGrammarTypeArguments(node, node.typeArguments);
+        }
+        function checkGrammarClassDeclarationHeritageClauses(node) {
+            var seenExtendsClause = false;
+            var seenImplementsClause = false;
+            if (!checkGrammarDecoratorsAndModifiers(node) && node.heritageClauses) {
+                for (var _i = 0, _a = node.heritageClauses; _i < _a.length; _i++) {
+                    var heritageClause = _a[_i];
+                    if (heritageClause.token === 90) {
+                        if (seenExtendsClause) {
+                            return grammarErrorOnFirstToken(heritageClause, ts.Diagnostics.extends_clause_already_seen);
+                        }
+                        if (seenImplementsClause) {
+                            return grammarErrorOnFirstToken(heritageClause, ts.Diagnostics.extends_clause_must_precede_implements_clause);
+                        }
+                        if (heritageClause.types.length > 1) {
+                            return grammarErrorOnFirstToken(heritageClause.types[1], ts.Diagnostics.Classes_can_only_extend_a_single_class);
+                        }
+                        seenExtendsClause = true;
+                    }
+                    else {
+                        ts.Debug.assert(heritageClause.token === 113);
+                        if (seenImplementsClause) {
+                            return grammarErrorOnFirstToken(heritageClause, ts.Diagnostics.implements_clause_already_seen);
+                        }
+                        seenImplementsClause = true;
+                    }
+                    checkGrammarHeritageClause(heritageClause);
+                }
+            }
+        }
+        function checkGrammarInterfaceDeclaration(node) {
+            var seenExtendsClause = false;
+            if (node.heritageClauses) {
+                for (var _i = 0, _a = node.heritageClauses; _i < _a.length; _i++) {
+                    var heritageClause = _a[_i];
+                    if (heritageClause.token === 90) {
+                        if (seenExtendsClause) {
+                            return grammarErrorOnFirstToken(heritageClause, ts.Diagnostics.extends_clause_already_seen);
+                        }
+                        seenExtendsClause = true;
+                    }
+                    else {
+                        ts.Debug.assert(heritageClause.token === 113);
+                        return grammarErrorOnFirstToken(heritageClause, ts.Diagnostics.Interface_declaration_cannot_have_implements_clause);
+                    }
+                    checkGrammarHeritageClause(heritageClause);
+                }
+            }
+            return false;
+        }
+        function checkGrammarComputedPropertyName(node) {
+            if (node.kind !== 154) {
+                return false;
+            }
+            var computedPropertyName = node;
+            if (computedPropertyName.expression.kind === 209 && computedPropertyName.expression.operatorToken.kind === 27) {
+                return grammarErrorOnNode(computedPropertyName.expression, ts.Diagnostics.A_comma_expression_is_not_allowed_in_a_computed_property_name);
+            }
+            return false;
+        }
+        function checkGrammarForGenerator(node) {
+            if (node.asteriskToken) {
+                ts.Debug.assert(node.kind === 244 ||
+                    node.kind === 201 ||
+                    node.kind === 161);
+                if (node.flags & 8388608) {
+                    return grammarErrorOnNode(node.asteriskToken, ts.Diagnostics.Generators_are_not_allowed_in_an_ambient_context);
+                }
+                if (!node.body) {
+                    return grammarErrorOnNode(node.asteriskToken, ts.Diagnostics.An_overload_signature_cannot_be_declared_as_a_generator);
+                }
+            }
+        }
+        function checkGrammarForInvalidQuestionMark(questionToken, message) {
+            return !!questionToken && grammarErrorOnNode(questionToken, message);
+        }
+        function checkGrammarForInvalidExclamationToken(exclamationToken, message) {
+            return !!exclamationToken && grammarErrorOnNode(exclamationToken, message);
+        }
+        function checkGrammarObjectLiteralExpression(node, inDestructuring) {
+            var seen = ts.createUnderscoreEscapedMap();
+            for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
+                var prop = _a[_i];
+                if (prop.kind === 283) {
+                    if (inDestructuring) {
+                        var expression = ts.skipParentheses(prop.expression);
+                        if (ts.isArrayLiteralExpression(expression) || ts.isObjectLiteralExpression(expression)) {
+                            return grammarErrorOnNode(prop.expression, ts.Diagnostics.A_rest_element_cannot_contain_a_binding_pattern);
+                        }
+                    }
+                    continue;
+                }
+                var name = prop.name;
+                if (name.kind === 154) {
+                    checkGrammarComputedPropertyName(name);
+                }
+                if (prop.kind === 282 && !inDestructuring && prop.objectAssignmentInitializer) {
+                    return grammarErrorOnNode(prop.equalsToken, ts.Diagnostics.can_only_be_used_in_an_object_literal_property_inside_a_destructuring_assignment);
+                }
+                if (name.kind === 76) {
+                    return grammarErrorOnNode(name, ts.Diagnostics.Private_identifiers_are_not_allowed_outside_class_bodies);
+                }
+                if (prop.modifiers) {
+                    for (var _b = 0, _c = prop.modifiers; _b < _c.length; _b++) {
+                        var mod = _c[_b];
+                        if (mod.kind !== 126 || prop.kind !== 161) {
+                            grammarErrorOnNode(mod, ts.Diagnostics._0_modifier_cannot_be_used_here, ts.getTextOfNode(mod));
+                        }
+                    }
+                }
+                var currentKind = void 0;
+                switch (prop.kind) {
+                    case 282:
+                        checkGrammarForInvalidExclamationToken(prop.exclamationToken, ts.Diagnostics.A_definite_assignment_assertion_is_not_permitted_in_this_context);
+                    case 281:
+                        checkGrammarForInvalidQuestionMark(prop.questionToken, ts.Diagnostics.An_object_member_cannot_be_declared_optional);
+                        if (name.kind === 8) {
+                            checkGrammarNumericLiteral(name);
+                        }
+                        currentKind = 4;
+                        break;
+                    case 161:
+                        currentKind = 8;
+                        break;
+                    case 163:
+                        currentKind = 1;
+                        break;
+                    case 164:
+                        currentKind = 2;
+                        break;
+                    default:
+                        throw ts.Debug.assertNever(prop, "Unexpected syntax kind:" + prop.kind);
+                }
+                if (!inDestructuring) {
+                    var effectiveName = ts.getPropertyNameForPropertyNameNode(name);
+                    if (effectiveName === undefined) {
+                        continue;
+                    }
+                    var existingKind = seen.get(effectiveName);
+                    if (!existingKind) {
+                        seen.set(effectiveName, currentKind);
+                    }
+                    else {
+                        if ((currentKind & 12) && (existingKind & 12)) {
+                            grammarErrorOnNode(name, ts.Diagnostics.Duplicate_identifier_0, ts.getTextOfNode(name));
+                        }
+                        else if ((currentKind & 3) && (existingKind & 3)) {
+                            if (existingKind !== 3 && currentKind !== existingKind) {
+                                seen.set(effectiveName, currentKind | existingKind);
+                            }
+                            else {
+                                return grammarErrorOnNode(name, ts.Diagnostics.An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name);
+                            }
+                        }
+                        else {
+                            return grammarErrorOnNode(name, ts.Diagnostics.An_object_literal_cannot_have_property_and_accessor_with_the_same_name);
+                        }
+                    }
+                }
+            }
+        }
+        function checkGrammarJsxElement(node) {
+            checkGrammarTypeArguments(node, node.typeArguments);
+            var seen = ts.createUnderscoreEscapedMap();
+            for (var _i = 0, _a = node.attributes.properties; _i < _a.length; _i++) {
+                var attr = _a[_i];
+                if (attr.kind === 275) {
+                    continue;
+                }
+                var name = attr.name, initializer = attr.initializer;
+                if (!seen.get(name.escapedText)) {
+                    seen.set(name.escapedText, true);
+                }
+                else {
+                    return grammarErrorOnNode(name, ts.Diagnostics.JSX_elements_cannot_have_multiple_attributes_with_the_same_name);
+                }
+                if (initializer && initializer.kind === 276 && !initializer.expression) {
+                    return grammarErrorOnNode(initializer, ts.Diagnostics.JSX_attributes_must_only_be_assigned_a_non_empty_expression);
+                }
+            }
+        }
+        function checkGrammarJsxExpression(node) {
+            if (node.expression && ts.isCommaSequence(node.expression)) {
+                return grammarErrorOnNode(node.expression, ts.Diagnostics.JSX_expressions_may_not_use_the_comma_operator_Did_you_mean_to_write_an_array);
+            }
+        }
+        function checkGrammarForInOrForOfStatement(forInOrOfStatement) {
+            if (checkGrammarStatementInAmbientContext(forInOrOfStatement)) {
+                return true;
+            }
+            if (forInOrOfStatement.kind === 232 && forInOrOfStatement.awaitModifier) {
+                if ((forInOrOfStatement.flags & 32768) === 0) {
+                    var sourceFile = ts.getSourceFileOfNode(forInOrOfStatement);
+                    if (!hasParseDiagnostics(sourceFile)) {
+                        var diagnostic = ts.createDiagnosticForNode(forInOrOfStatement.awaitModifier, ts.Diagnostics.A_for_await_of_statement_is_only_allowed_within_an_async_function_or_async_generator);
+                        var func = ts.getContainingFunction(forInOrOfStatement);
+                        if (func && func.kind !== 162) {
+                            ts.Debug.assert((ts.getFunctionFlags(func) & 2) === 0, "Enclosing function should never be an async function.");
+                            var relatedInfo = ts.createDiagnosticForNode(func, ts.Diagnostics.Did_you_mean_to_mark_this_function_as_async);
+                            ts.addRelatedInfo(diagnostic, relatedInfo);
+                        }
+                        diagnostics.add(diagnostic);
+                        return true;
+                    }
+                    return false;
+                }
+            }
+            if (forInOrOfStatement.initializer.kind === 243) {
+                var variableList = forInOrOfStatement.initializer;
+                if (!checkGrammarVariableDeclarationList(variableList)) {
+                    var declarations = variableList.declarations;
+                    if (!declarations.length) {
+                        return false;
+                    }
+                    if (declarations.length > 1) {
+                        var diagnostic = forInOrOfStatement.kind === 231
+                            ? ts.Diagnostics.Only_a_single_variable_declaration_is_allowed_in_a_for_in_statement
+                            : ts.Diagnostics.Only_a_single_variable_declaration_is_allowed_in_a_for_of_statement;
+                        return grammarErrorOnFirstToken(variableList.declarations[1], diagnostic);
+                    }
+                    var firstDeclaration = declarations[0];
+                    if (firstDeclaration.initializer) {
+                        var diagnostic = forInOrOfStatement.kind === 231
+                            ? ts.Diagnostics.The_variable_declaration_of_a_for_in_statement_cannot_have_an_initializer
+                            : ts.Diagnostics.The_variable_declaration_of_a_for_of_statement_cannot_have_an_initializer;
+                        return grammarErrorOnNode(firstDeclaration.name, diagnostic);
+                    }
+                    if (firstDeclaration.type) {
+                        var diagnostic = forInOrOfStatement.kind === 231
+                            ? ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_cannot_use_a_type_annotation
+                            : ts.Diagnostics.The_left_hand_side_of_a_for_of_statement_cannot_use_a_type_annotation;
+                        return grammarErrorOnNode(firstDeclaration, diagnostic);
+                    }
+                }
+            }
+            return false;
+        }
+        function checkGrammarAccessor(accessor) {
+            if (!(accessor.flags & 8388608)) {
+                if (languageVersion < 1) {
+                    return grammarErrorOnNode(accessor.name, ts.Diagnostics.Accessors_are_only_available_when_targeting_ECMAScript_5_and_higher);
+                }
+                if (accessor.body === undefined && !ts.hasModifier(accessor, 128)) {
+                    return grammarErrorAtPos(accessor, accessor.end - 1, ";".length, ts.Diagnostics._0_expected, "{");
+                }
+            }
+            if (accessor.body && ts.hasModifier(accessor, 128)) {
+                return grammarErrorOnNode(accessor, ts.Diagnostics.An_abstract_accessor_cannot_have_an_implementation);
+            }
+            if (accessor.typeParameters) {
+                return grammarErrorOnNode(accessor.name, ts.Diagnostics.An_accessor_cannot_have_type_parameters);
+            }
+            if (!doesAccessorHaveCorrectParameterCount(accessor)) {
+                return grammarErrorOnNode(accessor.name, accessor.kind === 163 ?
+                    ts.Diagnostics.A_get_accessor_cannot_have_parameters :
+                    ts.Diagnostics.A_set_accessor_must_have_exactly_one_parameter);
+            }
+            if (accessor.kind === 164) {
+                if (accessor.type) {
+                    return grammarErrorOnNode(accessor.name, ts.Diagnostics.A_set_accessor_cannot_have_a_return_type_annotation);
+                }
+                var parameter = ts.Debug.checkDefined(ts.getSetAccessorValueParameter(accessor), "Return value does not match parameter count assertion.");
+                if (parameter.dotDotDotToken) {
+                    return grammarErrorOnNode(parameter.dotDotDotToken, ts.Diagnostics.A_set_accessor_cannot_have_rest_parameter);
+                }
+                if (parameter.questionToken) {
+                    return grammarErrorOnNode(parameter.questionToken, ts.Diagnostics.A_set_accessor_cannot_have_an_optional_parameter);
+                }
+                if (parameter.initializer) {
+                    return grammarErrorOnNode(accessor.name, ts.Diagnostics.A_set_accessor_parameter_cannot_have_an_initializer);
+                }
+            }
+            return false;
+        }
+        function doesAccessorHaveCorrectParameterCount(accessor) {
+            return getAccessorThisParameter(accessor) || accessor.parameters.length === (accessor.kind === 163 ? 0 : 1);
+        }
+        function getAccessorThisParameter(accessor) {
+            if (accessor.parameters.length === (accessor.kind === 163 ? 1 : 2)) {
+                return ts.getThisParameter(accessor);
+            }
+        }
+        function checkGrammarTypeOperatorNode(node) {
+            if (node.operator === 147) {
+                if (node.type.kind !== 144) {
+                    return grammarErrorOnNode(node.type, ts.Diagnostics._0_expected, ts.tokenToString(144));
+                }
+                var parent = ts.walkUpParenthesizedTypes(node.parent);
+                switch (parent.kind) {
+                    case 242:
+                        var decl = parent;
+                        if (decl.name.kind !== 75) {
+                            return grammarErrorOnNode(node, ts.Diagnostics.unique_symbol_types_may_not_be_used_on_a_variable_declaration_with_a_binding_name);
+                        }
+                        if (!ts.isVariableDeclarationInVariableStatement(decl)) {
+                            return grammarErrorOnNode(node, ts.Diagnostics.unique_symbol_types_are_only_allowed_on_variables_in_a_variable_statement);
+                        }
+                        if (!(decl.parent.flags & 2)) {
+                            return grammarErrorOnNode(parent.name, ts.Diagnostics.A_variable_whose_type_is_a_unique_symbol_type_must_be_const);
+                        }
+                        break;
+                    case 159:
+                        if (!ts.hasModifier(parent, 32) ||
+                            !ts.hasModifier(parent, 64)) {
+                            return grammarErrorOnNode(parent.name, ts.Diagnostics.A_property_of_a_class_whose_type_is_a_unique_symbol_type_must_be_both_static_and_readonly);
+                        }
+                        break;
+                    case 158:
+                        if (!ts.hasModifier(parent, 64)) {
+                            return grammarErrorOnNode(parent.name, ts.Diagnostics.A_property_of_an_interface_or_type_literal_whose_type_is_a_unique_symbol_type_must_be_readonly);
+                        }
+                        break;
+                    default:
+                        return grammarErrorOnNode(node, ts.Diagnostics.unique_symbol_types_are_not_allowed_here);
+                }
+            }
+            else if (node.operator === 138) {
+                if (node.type.kind !== 174 && node.type.kind !== 175) {
+                    return grammarErrorOnFirstToken(node, ts.Diagnostics.readonly_type_modifier_is_only_permitted_on_array_and_tuple_literal_types, ts.tokenToString(144));
+                }
+            }
+        }
+        function checkGrammarForInvalidDynamicName(node, message) {
+            if (isNonBindableDynamicName(node)) {
+                return grammarErrorOnNode(node, message);
+            }
+        }
+        function checkGrammarMethod(node) {
+            if (checkGrammarFunctionLikeDeclaration(node)) {
+                return true;
+            }
+            if (node.kind === 161) {
+                if (node.parent.kind === 193) {
+                    if (node.modifiers && !(node.modifiers.length === 1 && ts.first(node.modifiers).kind === 126)) {
+                        return grammarErrorOnFirstToken(node, ts.Diagnostics.Modifiers_cannot_appear_here);
+                    }
+                    else if (checkGrammarForInvalidQuestionMark(node.questionToken, ts.Diagnostics.An_object_member_cannot_be_declared_optional)) {
+                        return true;
+                    }
+                    else if (checkGrammarForInvalidExclamationToken(node.exclamationToken, ts.Diagnostics.A_definite_assignment_assertion_is_not_permitted_in_this_context)) {
+                        return true;
+                    }
+                    else if (node.body === undefined) {
+                        return grammarErrorAtPos(node, node.end - 1, ";".length, ts.Diagnostics._0_expected, "{");
+                    }
+                }
+                if (checkGrammarForGenerator(node)) {
+                    return true;
+                }
+            }
+            if (ts.isClassLike(node.parent)) {
+                if (node.flags & 8388608) {
+                    return checkGrammarForInvalidDynamicName(node.name, ts.Diagnostics.A_computed_property_name_in_an_ambient_context_must_refer_to_an_expression_whose_type_is_a_literal_type_or_a_unique_symbol_type);
+                }
+                else if (node.kind === 161 && !node.body) {
+                    return checkGrammarForInvalidDynamicName(node.name, ts.Diagnostics.A_computed_property_name_in_a_method_overload_must_refer_to_an_expression_whose_type_is_a_literal_type_or_a_unique_symbol_type);
+                }
+            }
+            else if (node.parent.kind === 246) {
+                return checkGrammarForInvalidDynamicName(node.name, ts.Diagnostics.A_computed_property_name_in_an_interface_must_refer_to_an_expression_whose_type_is_a_literal_type_or_a_unique_symbol_type);
+            }
+            else if (node.parent.kind === 173) {
+                return checkGrammarForInvalidDynamicName(node.name, ts.Diagnostics.A_computed_property_name_in_a_type_literal_must_refer_to_an_expression_whose_type_is_a_literal_type_or_a_unique_symbol_type);
+            }
+        }
+        function checkGrammarBreakOrContinueStatement(node) {
+            var current = node;
+            while (current) {
+                if (ts.isFunctionLike(current)) {
+                    return grammarErrorOnNode(node, ts.Diagnostics.Jump_target_cannot_cross_function_boundary);
+                }
+                switch (current.kind) {
+                    case 238:
+                        if (node.label && current.label.escapedText === node.label.escapedText) {
+                            var isMisplacedContinueLabel = node.kind === 233
+                                && !ts.isIterationStatement(current.statement, true);
+                            if (isMisplacedContinueLabel) {
+                                return grammarErrorOnNode(node, ts.Diagnostics.A_continue_statement_can_only_jump_to_a_label_of_an_enclosing_iteration_statement);
+                            }
+                            return false;
+                        }
+                        break;
+                    case 237:
+                        if (node.kind === 234 && !node.label) {
+                            return false;
+                        }
+                        break;
+                    default:
+                        if (ts.isIterationStatement(current, false) && !node.label) {
+                            return false;
+                        }
+                        break;
+                }
+                current = current.parent;
+            }
+            if (node.label) {
+                var message = node.kind === 234
+                    ? ts.Diagnostics.A_break_statement_can_only_jump_to_a_label_of_an_enclosing_statement
+                    : ts.Diagnostics.A_continue_statement_can_only_jump_to_a_label_of_an_enclosing_iteration_statement;
+                return grammarErrorOnNode(node, message);
+            }
+            else {
+                var message = node.kind === 234
+                    ? ts.Diagnostics.A_break_statement_can_only_be_used_within_an_enclosing_iteration_or_switch_statement
+                    : ts.Diagnostics.A_continue_statement_can_only_be_used_within_an_enclosing_iteration_statement;
+                return grammarErrorOnNode(node, message);
+            }
+        }
+        function checkGrammarBindingElement(node) {
+            if (node.dotDotDotToken) {
+                var elements = node.parent.elements;
+                if (node !== ts.last(elements)) {
+                    return grammarErrorOnNode(node, ts.Diagnostics.A_rest_element_must_be_last_in_a_destructuring_pattern);
+                }
+                checkGrammarForDisallowedTrailingComma(elements, ts.Diagnostics.A_rest_parameter_or_binding_pattern_may_not_have_a_trailing_comma);
+                if (node.propertyName) {
+                    return grammarErrorOnNode(node.name, ts.Diagnostics.A_rest_element_cannot_have_a_property_name);
+                }
+                if (node.initializer) {
+                    return grammarErrorAtPos(node, node.initializer.pos - 1, 1, ts.Diagnostics.A_rest_element_cannot_have_an_initializer);
+                }
+            }
+        }
+        function isStringOrNumberLiteralExpression(expr) {
+            return ts.isStringOrNumericLiteralLike(expr) ||
+                expr.kind === 207 && expr.operator === 40 &&
+                    expr.operand.kind === 8;
+        }
+        function isBigIntLiteralExpression(expr) {
+            return expr.kind === 9 ||
+                expr.kind === 207 && expr.operator === 40 &&
+                    expr.operand.kind === 9;
+        }
+        function isSimpleLiteralEnumReference(expr) {
+            if ((ts.isPropertyAccessExpression(expr) || (ts.isElementAccessExpression(expr) && isStringOrNumberLiteralExpression(expr.argumentExpression))) &&
+                ts.isEntityNameExpression(expr.expression)) {
+                return !!(checkExpressionCached(expr).flags & 1024);
+            }
+        }
+        function checkAmbientInitializer(node) {
+            var initializer = node.initializer;
+            if (initializer) {
+                var isInvalidInitializer = !(isStringOrNumberLiteralExpression(initializer) ||
+                    isSimpleLiteralEnumReference(initializer) ||
+                    initializer.kind === 106 || initializer.kind === 91 ||
+                    isBigIntLiteralExpression(initializer));
+                var isConstOrReadonly = ts.isDeclarationReadonly(node) || ts.isVariableDeclaration(node) && ts.isVarConst(node);
+                if (isConstOrReadonly && !node.type) {
+                    if (isInvalidInitializer) {
+                        return grammarErrorOnNode(initializer, ts.Diagnostics.A_const_initializer_in_an_ambient_context_must_be_a_string_or_numeric_literal_or_literal_enum_reference);
+                    }
+                }
+                else {
+                    return grammarErrorOnNode(initializer, ts.Diagnostics.Initializers_are_not_allowed_in_ambient_contexts);
+                }
+                if (!isConstOrReadonly || isInvalidInitializer) {
+                    return grammarErrorOnNode(initializer, ts.Diagnostics.Initializers_are_not_allowed_in_ambient_contexts);
+                }
+            }
+        }
+        function checkGrammarVariableDeclaration(node) {
+            if (node.parent.parent.kind !== 231 && node.parent.parent.kind !== 232) {
+                if (node.flags & 8388608) {
+                    checkAmbientInitializer(node);
+                }
+                else if (!node.initializer) {
+                    if (ts.isBindingPattern(node.name) && !ts.isBindingPattern(node.parent)) {
+                        return grammarErrorOnNode(node, ts.Diagnostics.A_destructuring_declaration_must_have_an_initializer);
+                    }
+                    if (ts.isVarConst(node)) {
+                        return grammarErrorOnNode(node, ts.Diagnostics.const_declarations_must_be_initialized);
+                    }
+                }
+            }
+            if (node.exclamationToken && (node.parent.parent.kind !== 225 || !node.type || node.initializer || node.flags & 8388608)) {
+                return grammarErrorOnNode(node.exclamationToken, ts.Diagnostics.Definite_assignment_assertions_can_only_be_used_along_with_a_type_annotation);
+            }
+            var moduleKind = ts.getEmitModuleKind(compilerOptions);
+            if (moduleKind < ts.ModuleKind.ES2015 && moduleKind !== ts.ModuleKind.System && !compilerOptions.noEmit &&
+                !(node.parent.parent.flags & 8388608) && ts.hasModifier(node.parent.parent, 1)) {
+                checkESModuleMarker(node.name);
+            }
+            var checkLetConstNames = (ts.isLet(node) || ts.isVarConst(node));
+            return checkLetConstNames && checkGrammarNameInLetOrConstDeclarations(node.name);
+        }
+        function checkESModuleMarker(name) {
+            if (name.kind === 75) {
+                if (ts.idText(name) === "__esModule") {
+                    return grammarErrorOnNode(name, ts.Diagnostics.Identifier_expected_esModule_is_reserved_as_an_exported_marker_when_transforming_ECMAScript_modules);
+                }
+            }
+            else {
+                var elements = name.elements;
+                for (var _i = 0, elements_1 = elements; _i < elements_1.length; _i++) {
+                    var element = elements_1[_i];
+                    if (!ts.isOmittedExpression(element)) {
+                        return checkESModuleMarker(element.name);
+                    }
+                }
+            }
+            return false;
+        }
+        function checkGrammarNameInLetOrConstDeclarations(name) {
+            if (name.kind === 75) {
+                if (name.originalKeywordKind === 115) {
+                    return grammarErrorOnNode(name, ts.Diagnostics.let_is_not_allowed_to_be_used_as_a_name_in_let_or_const_declarations);
+                }
+            }
+            else {
+                var elements = name.elements;
+                for (var _i = 0, elements_2 = elements; _i < elements_2.length; _i++) {
+                    var element = elements_2[_i];
+                    if (!ts.isOmittedExpression(element)) {
+                        checkGrammarNameInLetOrConstDeclarations(element.name);
+                    }
+                }
+            }
+            return false;
+        }
+        function checkGrammarVariableDeclarationList(declarationList) {
+            var declarations = declarationList.declarations;
+            if (checkGrammarForDisallowedTrailingComma(declarationList.declarations)) {
+                return true;
+            }
+            if (!declarationList.declarations.length) {
+                return grammarErrorAtPos(declarationList, declarations.pos, declarations.end - declarations.pos, ts.Diagnostics.Variable_declaration_list_cannot_be_empty);
+            }
+            return false;
+        }
+        function allowLetAndConstDeclarations(parent) {
+            switch (parent.kind) {
+                case 227:
+                case 228:
+                case 229:
+                case 236:
+                case 230:
+                case 231:
+                case 232:
+                    return false;
+                case 238:
+                    return allowLetAndConstDeclarations(parent.parent);
+            }
+            return true;
+        }
+        function checkGrammarForDisallowedLetOrConstStatement(node) {
+            if (!allowLetAndConstDeclarations(node.parent)) {
+                if (ts.isLet(node.declarationList)) {
+                    return grammarErrorOnNode(node, ts.Diagnostics.let_declarations_can_only_be_declared_inside_a_block);
+                }
+                else if (ts.isVarConst(node.declarationList)) {
+                    return grammarErrorOnNode(node, ts.Diagnostics.const_declarations_can_only_be_declared_inside_a_block);
+                }
+            }
+        }
+        function checkGrammarMetaProperty(node) {
+            var escapedText = node.name.escapedText;
+            switch (node.keywordToken) {
+                case 99:
+                    if (escapedText !== "target") {
+                        return grammarErrorOnNode(node.name, ts.Diagnostics._0_is_not_a_valid_meta_property_for_keyword_1_Did_you_mean_2, node.name.escapedText, ts.tokenToString(node.keywordToken), "target");
+                    }
+                    break;
+                case 96:
+                    if (escapedText !== "meta") {
+                        return grammarErrorOnNode(node.name, ts.Diagnostics._0_is_not_a_valid_meta_property_for_keyword_1_Did_you_mean_2, node.name.escapedText, ts.tokenToString(node.keywordToken), "meta");
+                    }
+                    break;
+            }
+        }
+        function hasParseDiagnostics(sourceFile) {
+            return sourceFile.parseDiagnostics.length > 0;
+        }
+        function grammarErrorOnFirstToken(node, message, arg0, arg1, arg2) {
+            var sourceFile = ts.getSourceFileOfNode(node);
+            if (!hasParseDiagnostics(sourceFile)) {
+                var span = ts.getSpanOfTokenAtPosition(sourceFile, node.pos);
+                diagnostics.add(ts.createFileDiagnostic(sourceFile, span.start, span.length, message, arg0, arg1, arg2));
+                return true;
+            }
+            return false;
+        }
+        function grammarErrorAtPos(nodeForSourceFile, start, length, message, arg0, arg1, arg2) {
+            var sourceFile = ts.getSourceFileOfNode(nodeForSourceFile);
+            if (!hasParseDiagnostics(sourceFile)) {
+                diagnostics.add(ts.createFileDiagnostic(sourceFile, start, length, message, arg0, arg1, arg2));
+                return true;
+            }
+            return false;
+        }
+        function grammarErrorOnNode(node, message, arg0, arg1, arg2) {
+            var sourceFile = ts.getSourceFileOfNode(node);
+            if (!hasParseDiagnostics(sourceFile)) {
+                diagnostics.add(ts.createDiagnosticForNode(node, message, arg0, arg1, arg2));
+                return true;
+            }
+            return false;
+        }
+        function checkGrammarConstructorTypeParameters(node) {
+            var jsdocTypeParameters = ts.isInJSFile(node) ? ts.getJSDocTypeParameterDeclarations(node) : undefined;
+            var range = node.typeParameters || jsdocTypeParameters && ts.firstOrUndefined(jsdocTypeParameters);
+            if (range) {
+                var pos = range.pos === range.end ? range.pos : ts.skipTrivia(ts.getSourceFileOfNode(node).text, range.pos);
+                return grammarErrorAtPos(node, pos, range.end - pos, ts.Diagnostics.Type_parameters_cannot_appear_on_a_constructor_declaration);
+            }
+        }
+        function checkGrammarConstructorTypeAnnotation(node) {
+            var type = ts.getEffectiveReturnTypeNode(node);
+            if (type) {
+                return grammarErrorOnNode(type, ts.Diagnostics.Type_annotation_cannot_appear_on_a_constructor_declaration);
+            }
+        }
+        function checkGrammarProperty(node) {
+            if (ts.isClassLike(node.parent)) {
+                if (ts.isStringLiteral(node.name) && node.name.text === "constructor") {
+                    return grammarErrorOnNode(node.name, ts.Diagnostics.Classes_may_not_have_a_field_named_constructor);
+                }
+                if (checkGrammarForInvalidDynamicName(node.name, ts.Diagnostics.A_computed_property_name_in_a_class_property_declaration_must_refer_to_an_expression_whose_type_is_a_literal_type_or_a_unique_symbol_type)) {
+                    return true;
+                }
+                if (languageVersion < 2 && ts.isPrivateIdentifier(node.name)) {
+                    return grammarErrorOnNode(node.name, ts.Diagnostics.Private_identifiers_are_only_available_when_targeting_ECMAScript_2015_and_higher);
+                }
+            }
+            else if (node.parent.kind === 246) {
+                if (checkGrammarForInvalidDynamicName(node.name, ts.Diagnostics.A_computed_property_name_in_an_interface_must_refer_to_an_expression_whose_type_is_a_literal_type_or_a_unique_symbol_type)) {
+                    return true;
+                }
+                if (node.initializer) {
+                    return grammarErrorOnNode(node.initializer, ts.Diagnostics.An_interface_property_cannot_have_an_initializer);
+                }
+            }
+            else if (node.parent.kind === 173) {
+                if (checkGrammarForInvalidDynamicName(node.name, ts.Diagnostics.A_computed_property_name_in_a_type_literal_must_refer_to_an_expression_whose_type_is_a_literal_type_or_a_unique_symbol_type)) {
+                    return true;
+                }
+                if (node.initializer) {
+                    return grammarErrorOnNode(node.initializer, ts.Diagnostics.A_type_literal_property_cannot_have_an_initializer);
+                }
+            }
+            if (node.flags & 8388608) {
+                checkAmbientInitializer(node);
+            }
+            if (ts.isPropertyDeclaration(node) && node.exclamationToken && (!ts.isClassLike(node.parent) || !node.type || node.initializer ||
+                node.flags & 8388608 || ts.hasModifier(node, 32 | 128))) {
+                return grammarErrorOnNode(node.exclamationToken, ts.Diagnostics.A_definite_assignment_assertion_is_not_permitted_in_this_context);
+            }
+        }
+        function checkGrammarTopLevelElementForRequiredDeclareModifier(node) {
+            if (node.kind === 246 ||
+                node.kind === 247 ||
+                node.kind === 254 ||
+                node.kind === 253 ||
+                node.kind === 260 ||
+                node.kind === 259 ||
+                node.kind === 252 ||
+                ts.hasModifier(node, 2 | 1 | 512)) {
+                return false;
+            }
+            return grammarErrorOnFirstToken(node, ts.Diagnostics.Top_level_declarations_in_d_ts_files_must_start_with_either_a_declare_or_export_modifier);
+        }
+        function checkGrammarTopLevelElementsForRequiredDeclareModifier(file) {
+            for (var _i = 0, _a = file.statements; _i < _a.length; _i++) {
+                var decl = _a[_i];
+                if (ts.isDeclaration(decl) || decl.kind === 225) {
+                    if (checkGrammarTopLevelElementForRequiredDeclareModifier(decl)) {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
+        function checkGrammarSourceFile(node) {
+            return !!(node.flags & 8388608) && checkGrammarTopLevelElementsForRequiredDeclareModifier(node);
+        }
+        function checkGrammarStatementInAmbientContext(node) {
+            if (node.flags & 8388608) {
+                var links = getNodeLinks(node);
+                if (!links.hasReportedStatementInAmbientContext && (ts.isFunctionLike(node.parent) || ts.isAccessor(node.parent))) {
+                    return getNodeLinks(node).hasReportedStatementInAmbientContext = grammarErrorOnFirstToken(node, ts.Diagnostics.An_implementation_cannot_be_declared_in_ambient_contexts);
+                }
+                if (node.parent.kind === 223 || node.parent.kind === 250 || node.parent.kind === 290) {
+                    var links_2 = getNodeLinks(node.parent);
+                    if (!links_2.hasReportedStatementInAmbientContext) {
+                        return links_2.hasReportedStatementInAmbientContext = grammarErrorOnFirstToken(node, ts.Diagnostics.Statements_are_not_allowed_in_ambient_contexts);
+                    }
+                }
+                else {
+                }
+            }
+            return false;
+        }
+        function checkGrammarNumericLiteral(node) {
+            if (node.numericLiteralFlags & 32) {
+                var diagnosticMessage = void 0;
+                if (languageVersion >= 1) {
+                    diagnosticMessage = ts.Diagnostics.Octal_literals_are_not_available_when_targeting_ECMAScript_5_and_higher_Use_the_syntax_0;
+                }
+                else if (ts.isChildOfNodeWithKind(node, 187)) {
+                    diagnosticMessage = ts.Diagnostics.Octal_literal_types_must_use_ES2015_syntax_Use_the_syntax_0;
+                }
+                else if (ts.isChildOfNodeWithKind(node, 284)) {
+                    diagnosticMessage = ts.Diagnostics.Octal_literals_are_not_allowed_in_enums_members_initializer_Use_the_syntax_0;
+                }
+                if (diagnosticMessage) {
+                    var withMinus = ts.isPrefixUnaryExpression(node.parent) && node.parent.operator === 40;
+                    var literal = (withMinus ? "-" : "") + "0o" + node.text;
+                    return grammarErrorOnNode(withMinus ? node.parent : node, diagnosticMessage, literal);
+                }
+            }
+            checkNumericLiteralValueSize(node);
+            return false;
+        }
+        function checkNumericLiteralValueSize(node) {
+            if (node.numericLiteralFlags & 16 || node.text.length <= 15 || node.text.indexOf(".") !== -1) {
+                return;
+            }
+            var apparentValue = +ts.getTextOfNode(node);
+            if (apparentValue <= Math.pow(2, 53) - 1 && apparentValue + 1 > apparentValue) {
+                return;
+            }
+            addErrorOrSuggestion(false, ts.createDiagnosticForNode(node, ts.Diagnostics.Numeric_literals_with_absolute_values_equal_to_2_53_or_greater_are_too_large_to_be_represented_accurately_as_integers));
+        }
+        function checkGrammarBigIntLiteral(node) {
+            var literalType = ts.isLiteralTypeNode(node.parent) ||
+                ts.isPrefixUnaryExpression(node.parent) && ts.isLiteralTypeNode(node.parent.parent);
+            if (!literalType) {
+                if (languageVersion < 7) {
+                    if (grammarErrorOnNode(node, ts.Diagnostics.BigInt_literals_are_not_available_when_targeting_lower_than_ES2020)) {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
+        function grammarErrorAfterFirstToken(node, message, arg0, arg1, arg2) {
+            var sourceFile = ts.getSourceFileOfNode(node);
+            if (!hasParseDiagnostics(sourceFile)) {
+                var span = ts.getSpanOfTokenAtPosition(sourceFile, node.pos);
+                diagnostics.add(ts.createFileDiagnostic(sourceFile, ts.textSpanEnd(span), 0, message, arg0, arg1, arg2));
+                return true;
+            }
+            return false;
+        }
+        function getAmbientModules() {
+            if (!ambientModulesCache) {
+                ambientModulesCache = [];
+                globals.forEach(function (global, sym) {
+                    if (ambientModuleSymbolRegex.test(sym)) {
+                        ambientModulesCache.push(global);
+                    }
+                });
+            }
+            return ambientModulesCache;
+        }
+        function checkGrammarImportClause(node) {
+            if (node.isTypeOnly && node.name && node.namedBindings) {
+                return grammarErrorOnNode(node, ts.Diagnostics.A_type_only_import_can_specify_a_default_import_or_named_bindings_but_not_both);
+            }
+            return false;
+        }
+        function checkGrammarImportCallExpression(node) {
+            if (moduleKind === ts.ModuleKind.ES2015) {
+                return grammarErrorOnNode(node, ts.Diagnostics.Dynamic_imports_are_only_supported_when_the_module_flag_is_set_to_es2020_esnext_commonjs_amd_system_or_umd);
+            }
+            if (node.typeArguments) {
+                return grammarErrorOnNode(node, ts.Diagnostics.Dynamic_import_cannot_have_type_arguments);
+            }
+            var nodeArguments = node.arguments;
+            if (nodeArguments.length !== 1) {
+                return grammarErrorOnNode(node, ts.Diagnostics.Dynamic_import_must_have_one_specifier_as_an_argument);
+            }
+            checkGrammarForDisallowedTrailingComma(nodeArguments);
+            if (ts.isSpreadElement(nodeArguments[0])) {
+                return grammarErrorOnNode(nodeArguments[0], ts.Diagnostics.Specifier_of_dynamic_import_cannot_be_spread_element);
+            }
+            return false;
+        }
+        function findMatchingTypeReferenceOrTypeAliasReference(source, unionTarget) {
+            var sourceObjectFlags = ts.getObjectFlags(source);
+            if (sourceObjectFlags & (4 | 16) && unionTarget.flags & 1048576) {
+                return ts.find(unionTarget.types, function (target) {
+                    if (target.flags & 524288) {
+                        var overlapObjFlags = sourceObjectFlags & ts.getObjectFlags(target);
+                        if (overlapObjFlags & 4) {
+                            return source.target === target.target;
+                        }
+                        if (overlapObjFlags & 16) {
+                            return !!source.aliasSymbol && source.aliasSymbol === target.aliasSymbol;
+                        }
+                    }
+                    return false;
+                });
+            }
+        }
+        function findBestTypeForObjectLiteral(source, unionTarget) {
+            if (ts.getObjectFlags(source) & 128 && forEachType(unionTarget, isArrayLikeType)) {
+                return ts.find(unionTarget.types, function (t) { return !isArrayLikeType(t); });
+            }
+        }
+        function findBestTypeForInvokable(source, unionTarget) {
+            var signatureKind = 0;
+            var hasSignatures = getSignaturesOfType(source, signatureKind).length > 0 ||
+                (signatureKind = 1, getSignaturesOfType(source, signatureKind).length > 0);
+            if (hasSignatures) {
+                return ts.find(unionTarget.types, function (t) { return getSignaturesOfType(t, signatureKind).length > 0; });
+            }
+        }
+        function findMostOverlappyType(source, unionTarget) {
+            var bestMatch;
+            var matchingCount = 0;
+            for (var _i = 0, _a = unionTarget.types; _i < _a.length; _i++) {
+                var target = _a[_i];
+                var overlap = getIntersectionType([getIndexType(source), getIndexType(target)]);
+                if (overlap.flags & 4194304) {
+                    bestMatch = target;
+                    matchingCount = Infinity;
+                }
+                else if (overlap.flags & 1048576) {
+                    var len = ts.length(ts.filter(overlap.types, isUnitType));
+                    if (len >= matchingCount) {
+                        bestMatch = target;
+                        matchingCount = len;
+                    }
+                }
+                else if (isUnitType(overlap) && 1 >= matchingCount) {
+                    bestMatch = target;
+                    matchingCount = 1;
+                }
+            }
+            return bestMatch;
+        }
+        function filterPrimitivesIfContainsNonPrimitive(type) {
+            if (maybeTypeOfKind(type, 67108864)) {
+                var result = filterType(type, function (t) { return !(t.flags & 131068); });
+                if (!(result.flags & 131072)) {
+                    return result;
+                }
+            }
+            return type;
+        }
+        function findMatchingDiscriminantType(source, target, isRelatedTo, skipPartial) {
+            if (target.flags & 1048576 && source.flags & (2097152 | 524288)) {
+                var sourceProperties = getPropertiesOfType(source);
+                if (sourceProperties) {
+                    var sourcePropertiesFiltered = findDiscriminantProperties(sourceProperties, target);
+                    if (sourcePropertiesFiltered) {
+                        return discriminateTypeByDiscriminableItems(target, ts.map(sourcePropertiesFiltered, function (p) { return [function () { return getTypeOfSymbol(p); }, p.escapedName]; }), isRelatedTo, undefined, skipPartial);
+                    }
+                }
+            }
+            return undefined;
+        }
+    }
+    ts.createTypeChecker = createTypeChecker;
+    function isNotAccessor(declaration) {
+        return !ts.isAccessor(declaration);
+    }
+    function isNotOverload(declaration) {
+        return (declaration.kind !== 244 && declaration.kind !== 161) ||
+            !!declaration.body;
+    }
+    function isDeclarationNameOrImportPropertyName(name) {
+        switch (name.parent.kind) {
+            case 258:
+            case 263:
+                return ts.isIdentifier(name);
+            default:
+                return ts.isDeclarationName(name);
+        }
+    }
+    function isSomeImportDeclaration(decl) {
+        switch (decl.kind) {
+            case 255:
+            case 253:
+            case 256:
+            case 258:
+                return true;
+            case 75:
+                return decl.parent.kind === 258;
+            default:
+                return false;
+        }
+    }
+    var JsxNames;
+    (function (JsxNames) {
+        JsxNames.JSX = "JSX";
+        JsxNames.IntrinsicElements = "IntrinsicElements";
+        JsxNames.ElementClass = "ElementClass";
+        JsxNames.ElementAttributesPropertyNameContainer = "ElementAttributesProperty";
+        JsxNames.ElementChildrenAttributeNameContainer = "ElementChildrenAttribute";
+        JsxNames.Element = "Element";
+        JsxNames.IntrinsicAttributes = "IntrinsicAttributes";
+        JsxNames.IntrinsicClassAttributes = "IntrinsicClassAttributes";
+        JsxNames.LibraryManagedAttributes = "LibraryManagedAttributes";
+    })(JsxNames || (JsxNames = {}));
+    function getIterationTypesKeyFromIterationTypeKind(typeKind) {
+        switch (typeKind) {
+            case 0: return "yieldType";
+            case 1: return "returnType";
+            case 2: return "nextType";
+        }
+    }
+    function signatureHasRestParameter(s) {
+        return !!(s.flags & 1);
+    }
+    ts.signatureHasRestParameter = signatureHasRestParameter;
+    function signatureHasLiteralTypes(s) {
+        return !!(s.flags & 2);
+    }
+    ts.signatureHasLiteralTypes = signatureHasLiteralTypes;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function createSynthesizedNode(kind) {
+        var node = ts.createNode(kind, -1, -1);
+        node.flags |= 8;
+        return node;
+    }
+    function updateNode(updated, original) {
+        if (updated !== original) {
+            setOriginalNode(updated, original);
+            setTextRange(updated, original);
+            ts.aggregateTransformFlags(updated);
+        }
+        return updated;
+    }
+    ts.updateNode = updateNode;
+    function createNodeArray(elements, hasTrailingComma) {
+        if (!elements || elements === ts.emptyArray) {
+            elements = [];
+        }
+        else if (ts.isNodeArray(elements)) {
+            return elements;
+        }
+        var array = elements;
+        array.pos = -1;
+        array.end = -1;
+        array.hasTrailingComma = hasTrailingComma;
+        return array;
+    }
+    ts.createNodeArray = createNodeArray;
+    function getSynthesizedClone(node) {
+        if (node === undefined) {
+            return node;
+        }
+        var clone = createSynthesizedNode(node.kind);
+        clone.flags |= node.flags;
+        setOriginalNode(clone, node);
+        for (var key in node) {
+            if (clone.hasOwnProperty(key) || !node.hasOwnProperty(key)) {
+                continue;
+            }
+            clone[key] = node[key];
+        }
+        return clone;
+    }
+    ts.getSynthesizedClone = getSynthesizedClone;
+    function createLiteral(value, isSingleQuote) {
+        if (typeof value === "number") {
+            return createNumericLiteral(value + "");
+        }
+        if (typeof value === "object" && "base10Value" in value) {
+            return createBigIntLiteral(ts.pseudoBigIntToString(value) + "n");
+        }
+        if (typeof value === "boolean") {
+            return value ? createTrue() : createFalse();
+        }
+        if (ts.isString(value)) {
+            var res = createStringLiteral(value);
+            if (isSingleQuote)
+                res.singleQuote = true;
+            return res;
+        }
+        return createLiteralFromNode(value);
+    }
+    ts.createLiteral = createLiteral;
+    function createNumericLiteral(value, numericLiteralFlags) {
+        if (numericLiteralFlags === void 0) { numericLiteralFlags = 0; }
+        var node = createSynthesizedNode(8);
+        node.text = value;
+        node.numericLiteralFlags = numericLiteralFlags;
+        return node;
+    }
+    ts.createNumericLiteral = createNumericLiteral;
+    function createBigIntLiteral(value) {
+        var node = createSynthesizedNode(9);
+        node.text = value;
+        return node;
+    }
+    ts.createBigIntLiteral = createBigIntLiteral;
+    function createStringLiteral(text) {
+        var node = createSynthesizedNode(10);
+        node.text = text;
+        return node;
+    }
+    ts.createStringLiteral = createStringLiteral;
+    function createRegularExpressionLiteral(text) {
+        var node = createSynthesizedNode(13);
+        node.text = text;
+        return node;
+    }
+    ts.createRegularExpressionLiteral = createRegularExpressionLiteral;
+    function createLiteralFromNode(sourceNode) {
+        var node = createStringLiteral(ts.getTextOfIdentifierOrLiteral(sourceNode));
+        node.textSourceNode = sourceNode;
+        return node;
+    }
+    function createIdentifier(text, typeArguments) {
+        var node = createSynthesizedNode(75);
+        node.escapedText = ts.escapeLeadingUnderscores(text);
+        node.originalKeywordKind = text ? ts.stringToToken(text) : 0;
+        node.autoGenerateFlags = 0;
+        node.autoGenerateId = 0;
+        if (typeArguments) {
+            node.typeArguments = createNodeArray(typeArguments);
+        }
+        return node;
+    }
+    ts.createIdentifier = createIdentifier;
+    function updateIdentifier(node, typeArguments) {
+        return node.typeArguments !== typeArguments
+            ? updateNode(createIdentifier(ts.idText(node), typeArguments), node)
+            : node;
+    }
+    ts.updateIdentifier = updateIdentifier;
+    var nextAutoGenerateId = 0;
+    function createTempVariable(recordTempVariable, reservedInNestedScopes) {
+        var name = createIdentifier("");
+        name.autoGenerateFlags = 1;
+        name.autoGenerateId = nextAutoGenerateId;
+        nextAutoGenerateId++;
+        if (recordTempVariable) {
+            recordTempVariable(name);
+        }
+        if (reservedInNestedScopes) {
+            name.autoGenerateFlags |= 8;
+        }
+        return name;
+    }
+    ts.createTempVariable = createTempVariable;
+    function createLoopVariable() {
+        var name = createIdentifier("");
+        name.autoGenerateFlags = 2;
+        name.autoGenerateId = nextAutoGenerateId;
+        nextAutoGenerateId++;
+        return name;
+    }
+    ts.createLoopVariable = createLoopVariable;
+    function createUniqueName(text) {
+        var name = createIdentifier(text);
+        name.autoGenerateFlags = 3;
+        name.autoGenerateId = nextAutoGenerateId;
+        nextAutoGenerateId++;
+        return name;
+    }
+    ts.createUniqueName = createUniqueName;
+    function createOptimisticUniqueName(text) {
+        var name = createIdentifier(text);
+        name.autoGenerateFlags = 3 | 16;
+        name.autoGenerateId = nextAutoGenerateId;
+        nextAutoGenerateId++;
+        return name;
+    }
+    ts.createOptimisticUniqueName = createOptimisticUniqueName;
+    function createFileLevelUniqueName(text) {
+        var name = createOptimisticUniqueName(text);
+        name.autoGenerateFlags |= 32;
+        return name;
+    }
+    ts.createFileLevelUniqueName = createFileLevelUniqueName;
+    function getGeneratedNameForNode(node, flags) {
+        var name = createIdentifier(node && ts.isIdentifier(node) ? ts.idText(node) : "");
+        name.autoGenerateFlags = 4 | flags;
+        name.autoGenerateId = nextAutoGenerateId;
+        name.original = node;
+        nextAutoGenerateId++;
+        return name;
+    }
+    ts.getGeneratedNameForNode = getGeneratedNameForNode;
+    function createPrivateIdentifier(text) {
+        if (text[0] !== "#") {
+            ts.Debug.fail("First character of private identifier must be #: " + text);
+        }
+        var node = createSynthesizedNode(76);
+        node.escapedText = ts.escapeLeadingUnderscores(text);
+        return node;
+    }
+    ts.createPrivateIdentifier = createPrivateIdentifier;
+    function createToken(token) {
+        return createSynthesizedNode(token);
+    }
+    ts.createToken = createToken;
+    function createSuper() {
+        return createSynthesizedNode(102);
+    }
+    ts.createSuper = createSuper;
+    function createThis() {
+        return createSynthesizedNode(104);
+    }
+    ts.createThis = createThis;
+    function createNull() {
+        return createSynthesizedNode(100);
+    }
+    ts.createNull = createNull;
+    function createTrue() {
+        return createSynthesizedNode(106);
+    }
+    ts.createTrue = createTrue;
+    function createFalse() {
+        return createSynthesizedNode(91);
+    }
+    ts.createFalse = createFalse;
+    function createModifier(kind) {
+        return createToken(kind);
+    }
+    ts.createModifier = createModifier;
+    function createModifiersFromModifierFlags(flags) {
+        var result = [];
+        if (flags & 1) {
+            result.push(createModifier(89));
+        }
+        if (flags & 2) {
+            result.push(createModifier(130));
+        }
+        if (flags & 512) {
+            result.push(createModifier(84));
+        }
+        if (flags & 2048) {
+            result.push(createModifier(81));
+        }
+        if (flags & 4) {
+            result.push(createModifier(119));
+        }
+        if (flags & 8) {
+            result.push(createModifier(117));
+        }
+        if (flags & 16) {
+            result.push(createModifier(118));
+        }
+        if (flags & 128) {
+            result.push(createModifier(122));
+        }
+        if (flags & 32) {
+            result.push(createModifier(120));
+        }
+        if (flags & 64) {
+            result.push(createModifier(138));
+        }
+        if (flags & 256) {
+            result.push(createModifier(126));
+        }
+        return result;
+    }
+    ts.createModifiersFromModifierFlags = createModifiersFromModifierFlags;
+    function createQualifiedName(left, right) {
+        var node = createSynthesizedNode(153);
+        node.left = left;
+        node.right = asName(right);
+        return node;
+    }
+    ts.createQualifiedName = createQualifiedName;
+    function updateQualifiedName(node, left, right) {
+        return node.left !== left
+            || node.right !== right
+            ? updateNode(createQualifiedName(left, right), node)
+            : node;
+    }
+    ts.updateQualifiedName = updateQualifiedName;
+    function parenthesizeForComputedName(expression) {
+        return ts.isCommaSequence(expression)
+            ? createParen(expression)
+            : expression;
+    }
+    function createComputedPropertyName(expression) {
+        var node = createSynthesizedNode(154);
+        node.expression = parenthesizeForComputedName(expression);
+        return node;
+    }
+    ts.createComputedPropertyName = createComputedPropertyName;
+    function updateComputedPropertyName(node, expression) {
+        return node.expression !== expression
+            ? updateNode(createComputedPropertyName(expression), node)
+            : node;
+    }
+    ts.updateComputedPropertyName = updateComputedPropertyName;
+    function createTypeParameterDeclaration(name, constraint, defaultType) {
+        var node = createSynthesizedNode(155);
+        node.name = asName(name);
+        node.constraint = constraint;
+        node.default = defaultType;
+        return node;
+    }
+    ts.createTypeParameterDeclaration = createTypeParameterDeclaration;
+    function updateTypeParameterDeclaration(node, name, constraint, defaultType) {
+        return node.name !== name
+            || node.constraint !== constraint
+            || node.default !== defaultType
+            ? updateNode(createTypeParameterDeclaration(name, constraint, defaultType), node)
+            : node;
+    }
+    ts.updateTypeParameterDeclaration = updateTypeParameterDeclaration;
+    function createParameter(decorators, modifiers, dotDotDotToken, name, questionToken, type, initializer) {
+        var node = createSynthesizedNode(156);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.dotDotDotToken = dotDotDotToken;
+        node.name = asName(name);
+        node.questionToken = questionToken;
+        node.type = type;
+        node.initializer = initializer ? ts.parenthesizeExpressionForList(initializer) : undefined;
+        return node;
+    }
+    ts.createParameter = createParameter;
+    function updateParameter(node, decorators, modifiers, dotDotDotToken, name, questionToken, type, initializer) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.dotDotDotToken !== dotDotDotToken
+            || node.name !== name
+            || node.questionToken !== questionToken
+            || node.type !== type
+            || node.initializer !== initializer
+            ? updateNode(createParameter(decorators, modifiers, dotDotDotToken, name, questionToken, type, initializer), node)
+            : node;
+    }
+    ts.updateParameter = updateParameter;
+    function createDecorator(expression) {
+        var node = createSynthesizedNode(157);
+        node.expression = ts.parenthesizeForAccess(expression);
+        return node;
+    }
+    ts.createDecorator = createDecorator;
+    function updateDecorator(node, expression) {
+        return node.expression !== expression
+            ? updateNode(createDecorator(expression), node)
+            : node;
+    }
+    ts.updateDecorator = updateDecorator;
+    function createPropertySignature(modifiers, name, questionToken, type, initializer) {
+        var node = createSynthesizedNode(158);
+        node.modifiers = asNodeArray(modifiers);
+        node.name = asName(name);
+        node.questionToken = questionToken;
+        node.type = type;
+        node.initializer = initializer;
+        return node;
+    }
+    ts.createPropertySignature = createPropertySignature;
+    function updatePropertySignature(node, modifiers, name, questionToken, type, initializer) {
+        return node.modifiers !== modifiers
+            || node.name !== name
+            || node.questionToken !== questionToken
+            || node.type !== type
+            || node.initializer !== initializer
+            ? updateNode(createPropertySignature(modifiers, name, questionToken, type, initializer), node)
+            : node;
+    }
+    ts.updatePropertySignature = updatePropertySignature;
+    function createProperty(decorators, modifiers, name, questionOrExclamationToken, type, initializer) {
+        var node = createSynthesizedNode(159);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.name = asName(name);
+        node.questionToken = questionOrExclamationToken !== undefined && questionOrExclamationToken.kind === 57 ? questionOrExclamationToken : undefined;
+        node.exclamationToken = questionOrExclamationToken !== undefined && questionOrExclamationToken.kind === 53 ? questionOrExclamationToken : undefined;
+        node.type = type;
+        node.initializer = initializer;
+        return node;
+    }
+    ts.createProperty = createProperty;
+    function updateProperty(node, decorators, modifiers, name, questionOrExclamationToken, type, initializer) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.name !== name
+            || node.questionToken !== (questionOrExclamationToken !== undefined && questionOrExclamationToken.kind === 57 ? questionOrExclamationToken : undefined)
+            || node.exclamationToken !== (questionOrExclamationToken !== undefined && questionOrExclamationToken.kind === 53 ? questionOrExclamationToken : undefined)
+            || node.type !== type
+            || node.initializer !== initializer
+            ? updateNode(createProperty(decorators, modifiers, name, questionOrExclamationToken, type, initializer), node)
+            : node;
+    }
+    ts.updateProperty = updateProperty;
+    function createMethodSignature(typeParameters, parameters, type, name, questionToken) {
+        var node = createSignatureDeclaration(160, typeParameters, parameters, type);
+        node.name = asName(name);
+        node.questionToken = questionToken;
+        return node;
+    }
+    ts.createMethodSignature = createMethodSignature;
+    function updateMethodSignature(node, typeParameters, parameters, type, name, questionToken) {
+        return node.typeParameters !== typeParameters
+            || node.parameters !== parameters
+            || node.type !== type
+            || node.name !== name
+            || node.questionToken !== questionToken
+            ? updateNode(createMethodSignature(typeParameters, parameters, type, name, questionToken), node)
+            : node;
+    }
+    ts.updateMethodSignature = updateMethodSignature;
+    function createMethod(decorators, modifiers, asteriskToken, name, questionToken, typeParameters, parameters, type, body) {
+        var node = createSynthesizedNode(161);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.asteriskToken = asteriskToken;
+        node.name = asName(name);
+        node.questionToken = questionToken;
+        node.typeParameters = asNodeArray(typeParameters);
+        node.parameters = createNodeArray(parameters);
+        node.type = type;
+        node.body = body;
+        return node;
+    }
+    ts.createMethod = createMethod;
+    function createMethodCall(object, methodName, argumentsList) {
+        return createCall(createPropertyAccess(object, asName(methodName)), undefined, argumentsList);
+    }
+    function createGlobalMethodCall(globalObjectName, methodName, argumentsList) {
+        return createMethodCall(createIdentifier(globalObjectName), methodName, argumentsList);
+    }
+    function createObjectDefinePropertyCall(target, propertyName, attributes) {
+        return createGlobalMethodCall("Object", "defineProperty", [target, asExpression(propertyName), attributes]);
+    }
+    ts.createObjectDefinePropertyCall = createObjectDefinePropertyCall;
+    function tryAddPropertyAssignment(properties, propertyName, expression) {
+        if (expression) {
+            properties.push(createPropertyAssignment(propertyName, expression));
+            return true;
+        }
+        return false;
+    }
+    function createPropertyDescriptor(attributes, singleLine) {
+        var properties = [];
+        tryAddPropertyAssignment(properties, "enumerable", asExpression(attributes.enumerable));
+        tryAddPropertyAssignment(properties, "configurable", asExpression(attributes.configurable));
+        var isData = tryAddPropertyAssignment(properties, "writable", asExpression(attributes.writable));
+        isData = tryAddPropertyAssignment(properties, "value", attributes.value) || isData;
+        var isAccessor = tryAddPropertyAssignment(properties, "get", attributes.get);
+        isAccessor = tryAddPropertyAssignment(properties, "set", attributes.set) || isAccessor;
+        ts.Debug.assert(!(isData && isAccessor), "A PropertyDescriptor may not be both an accessor descriptor and a data descriptor.");
+        return createObjectLiteral(properties, !singleLine);
+    }
+    ts.createPropertyDescriptor = createPropertyDescriptor;
+    function updateMethod(node, decorators, modifiers, asteriskToken, name, questionToken, typeParameters, parameters, type, body) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.asteriskToken !== asteriskToken
+            || node.name !== name
+            || node.questionToken !== questionToken
+            || node.typeParameters !== typeParameters
+            || node.parameters !== parameters
+            || node.type !== type
+            || node.body !== body
+            ? updateNode(createMethod(decorators, modifiers, asteriskToken, name, questionToken, typeParameters, parameters, type, body), node)
+            : node;
+    }
+    ts.updateMethod = updateMethod;
+    function createConstructor(decorators, modifiers, parameters, body) {
+        var node = createSynthesizedNode(162);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.typeParameters = undefined;
+        node.parameters = createNodeArray(parameters);
+        node.type = undefined;
+        node.body = body;
+        return node;
+    }
+    ts.createConstructor = createConstructor;
+    function updateConstructor(node, decorators, modifiers, parameters, body) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.parameters !== parameters
+            || node.body !== body
+            ? updateNode(createConstructor(decorators, modifiers, parameters, body), node)
+            : node;
+    }
+    ts.updateConstructor = updateConstructor;
+    function createGetAccessor(decorators, modifiers, name, parameters, type, body) {
+        var node = createSynthesizedNode(163);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.name = asName(name);
+        node.typeParameters = undefined;
+        node.parameters = createNodeArray(parameters);
+        node.type = type;
+        node.body = body;
+        return node;
+    }
+    ts.createGetAccessor = createGetAccessor;
+    function updateGetAccessor(node, decorators, modifiers, name, parameters, type, body) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.name !== name
+            || node.parameters !== parameters
+            || node.type !== type
+            || node.body !== body
+            ? updateNode(createGetAccessor(decorators, modifiers, name, parameters, type, body), node)
+            : node;
+    }
+    ts.updateGetAccessor = updateGetAccessor;
+    function createSetAccessor(decorators, modifiers, name, parameters, body) {
+        var node = createSynthesizedNode(164);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.name = asName(name);
+        node.typeParameters = undefined;
+        node.parameters = createNodeArray(parameters);
+        node.body = body;
+        return node;
+    }
+    ts.createSetAccessor = createSetAccessor;
+    function updateSetAccessor(node, decorators, modifiers, name, parameters, body) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.name !== name
+            || node.parameters !== parameters
+            || node.body !== body
+            ? updateNode(createSetAccessor(decorators, modifiers, name, parameters, body), node)
+            : node;
+    }
+    ts.updateSetAccessor = updateSetAccessor;
+    function createCallSignature(typeParameters, parameters, type) {
+        return createSignatureDeclaration(165, typeParameters, parameters, type);
+    }
+    ts.createCallSignature = createCallSignature;
+    function updateCallSignature(node, typeParameters, parameters, type) {
+        return updateSignatureDeclaration(node, typeParameters, parameters, type);
+    }
+    ts.updateCallSignature = updateCallSignature;
+    function createConstructSignature(typeParameters, parameters, type) {
+        return createSignatureDeclaration(166, typeParameters, parameters, type);
+    }
+    ts.createConstructSignature = createConstructSignature;
+    function updateConstructSignature(node, typeParameters, parameters, type) {
+        return updateSignatureDeclaration(node, typeParameters, parameters, type);
+    }
+    ts.updateConstructSignature = updateConstructSignature;
+    function createIndexSignature(decorators, modifiers, parameters, type) {
+        var node = createSynthesizedNode(167);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.parameters = createNodeArray(parameters);
+        node.type = type;
+        return node;
+    }
+    ts.createIndexSignature = createIndexSignature;
+    function updateIndexSignature(node, decorators, modifiers, parameters, type) {
+        return node.parameters !== parameters
+            || node.type !== type
+            || node.decorators !== decorators
+            || node.modifiers !== modifiers
+            ? updateNode(createIndexSignature(decorators, modifiers, parameters, type), node)
+            : node;
+    }
+    ts.updateIndexSignature = updateIndexSignature;
+    function createSignatureDeclaration(kind, typeParameters, parameters, type, typeArguments) {
+        var node = createSynthesizedNode(kind);
+        node.typeParameters = asNodeArray(typeParameters);
+        node.parameters = asNodeArray(parameters);
+        node.type = type;
+        node.typeArguments = asNodeArray(typeArguments);
+        return node;
+    }
+    ts.createSignatureDeclaration = createSignatureDeclaration;
+    function updateSignatureDeclaration(node, typeParameters, parameters, type) {
+        return node.typeParameters !== typeParameters
+            || node.parameters !== parameters
+            || node.type !== type
+            ? updateNode(createSignatureDeclaration(node.kind, typeParameters, parameters, type), node)
+            : node;
+    }
+    function createKeywordTypeNode(kind) {
+        return createSynthesizedNode(kind);
+    }
+    ts.createKeywordTypeNode = createKeywordTypeNode;
+    function createTypePredicateNode(parameterName, type) {
+        return createTypePredicateNodeWithModifier(undefined, parameterName, type);
+    }
+    ts.createTypePredicateNode = createTypePredicateNode;
+    function createTypePredicateNodeWithModifier(assertsModifier, parameterName, type) {
+        var node = createSynthesizedNode(168);
+        node.assertsModifier = assertsModifier;
+        node.parameterName = asName(parameterName);
+        node.type = type;
+        return node;
+    }
+    ts.createTypePredicateNodeWithModifier = createTypePredicateNodeWithModifier;
+    function updateTypePredicateNode(node, parameterName, type) {
+        return updateTypePredicateNodeWithModifier(node, node.assertsModifier, parameterName, type);
+    }
+    ts.updateTypePredicateNode = updateTypePredicateNode;
+    function updateTypePredicateNodeWithModifier(node, assertsModifier, parameterName, type) {
+        return node.assertsModifier !== assertsModifier
+            || node.parameterName !== parameterName
+            || node.type !== type
+            ? updateNode(createTypePredicateNodeWithModifier(assertsModifier, parameterName, type), node)
+            : node;
+    }
+    ts.updateTypePredicateNodeWithModifier = updateTypePredicateNodeWithModifier;
+    function createTypeReferenceNode(typeName, typeArguments) {
+        var node = createSynthesizedNode(169);
+        node.typeName = asName(typeName);
+        node.typeArguments = typeArguments && ts.parenthesizeTypeParameters(typeArguments);
+        return node;
+    }
+    ts.createTypeReferenceNode = createTypeReferenceNode;
+    function updateTypeReferenceNode(node, typeName, typeArguments) {
+        return node.typeName !== typeName
+            || node.typeArguments !== typeArguments
+            ? updateNode(createTypeReferenceNode(typeName, typeArguments), node)
+            : node;
+    }
+    ts.updateTypeReferenceNode = updateTypeReferenceNode;
+    function createFunctionTypeNode(typeParameters, parameters, type) {
+        return createSignatureDeclaration(170, typeParameters, parameters, type);
+    }
+    ts.createFunctionTypeNode = createFunctionTypeNode;
+    function updateFunctionTypeNode(node, typeParameters, parameters, type) {
+        return updateSignatureDeclaration(node, typeParameters, parameters, type);
+    }
+    ts.updateFunctionTypeNode = updateFunctionTypeNode;
+    function createConstructorTypeNode(typeParameters, parameters, type) {
+        return createSignatureDeclaration(171, typeParameters, parameters, type);
+    }
+    ts.createConstructorTypeNode = createConstructorTypeNode;
+    function updateConstructorTypeNode(node, typeParameters, parameters, type) {
+        return updateSignatureDeclaration(node, typeParameters, parameters, type);
+    }
+    ts.updateConstructorTypeNode = updateConstructorTypeNode;
+    function createTypeQueryNode(exprName) {
+        var node = createSynthesizedNode(172);
+        node.exprName = exprName;
+        return node;
+    }
+    ts.createTypeQueryNode = createTypeQueryNode;
+    function updateTypeQueryNode(node, exprName) {
+        return node.exprName !== exprName
+            ? updateNode(createTypeQueryNode(exprName), node)
+            : node;
+    }
+    ts.updateTypeQueryNode = updateTypeQueryNode;
+    function createTypeLiteralNode(members) {
+        var node = createSynthesizedNode(173);
+        node.members = createNodeArray(members);
+        return node;
+    }
+    ts.createTypeLiteralNode = createTypeLiteralNode;
+    function updateTypeLiteralNode(node, members) {
+        return node.members !== members
+            ? updateNode(createTypeLiteralNode(members), node)
+            : node;
+    }
+    ts.updateTypeLiteralNode = updateTypeLiteralNode;
+    function createArrayTypeNode(elementType) {
+        var node = createSynthesizedNode(174);
+        node.elementType = ts.parenthesizeArrayTypeMember(elementType);
+        return node;
+    }
+    ts.createArrayTypeNode = createArrayTypeNode;
+    function updateArrayTypeNode(node, elementType) {
+        return node.elementType !== elementType
+            ? updateNode(createArrayTypeNode(elementType), node)
+            : node;
+    }
+    ts.updateArrayTypeNode = updateArrayTypeNode;
+    function createTupleTypeNode(elementTypes) {
+        var node = createSynthesizedNode(175);
+        node.elementTypes = createNodeArray(elementTypes);
+        return node;
+    }
+    ts.createTupleTypeNode = createTupleTypeNode;
+    function updateTupleTypeNode(node, elementTypes) {
+        return node.elementTypes !== elementTypes
+            ? updateNode(createTupleTypeNode(elementTypes), node)
+            : node;
+    }
+    ts.updateTupleTypeNode = updateTupleTypeNode;
+    function createOptionalTypeNode(type) {
+        var node = createSynthesizedNode(176);
+        node.type = ts.parenthesizeArrayTypeMember(type);
+        return node;
+    }
+    ts.createOptionalTypeNode = createOptionalTypeNode;
+    function updateOptionalTypeNode(node, type) {
+        return node.type !== type
+            ? updateNode(createOptionalTypeNode(type), node)
+            : node;
+    }
+    ts.updateOptionalTypeNode = updateOptionalTypeNode;
+    function createRestTypeNode(type) {
+        var node = createSynthesizedNode(177);
+        node.type = type;
+        return node;
+    }
+    ts.createRestTypeNode = createRestTypeNode;
+    function updateRestTypeNode(node, type) {
+        return node.type !== type
+            ? updateNode(createRestTypeNode(type), node)
+            : node;
+    }
+    ts.updateRestTypeNode = updateRestTypeNode;
+    function createUnionTypeNode(types) {
+        return createUnionOrIntersectionTypeNode(178, types);
+    }
+    ts.createUnionTypeNode = createUnionTypeNode;
+    function updateUnionTypeNode(node, types) {
+        return updateUnionOrIntersectionTypeNode(node, types);
+    }
+    ts.updateUnionTypeNode = updateUnionTypeNode;
+    function createIntersectionTypeNode(types) {
+        return createUnionOrIntersectionTypeNode(179, types);
+    }
+    ts.createIntersectionTypeNode = createIntersectionTypeNode;
+    function updateIntersectionTypeNode(node, types) {
+        return updateUnionOrIntersectionTypeNode(node, types);
+    }
+    ts.updateIntersectionTypeNode = updateIntersectionTypeNode;
+    function createUnionOrIntersectionTypeNode(kind, types) {
+        var node = createSynthesizedNode(kind);
+        node.types = ts.parenthesizeElementTypeMembers(types);
+        return node;
+    }
+    ts.createUnionOrIntersectionTypeNode = createUnionOrIntersectionTypeNode;
+    function updateUnionOrIntersectionTypeNode(node, types) {
+        return node.types !== types
+            ? updateNode(createUnionOrIntersectionTypeNode(node.kind, types), node)
+            : node;
+    }
+    function createConditionalTypeNode(checkType, extendsType, trueType, falseType) {
+        var node = createSynthesizedNode(180);
+        node.checkType = ts.parenthesizeConditionalTypeMember(checkType);
+        node.extendsType = ts.parenthesizeConditionalTypeMember(extendsType);
+        node.trueType = trueType;
+        node.falseType = falseType;
+        return node;
+    }
+    ts.createConditionalTypeNode = createConditionalTypeNode;
+    function updateConditionalTypeNode(node, checkType, extendsType, trueType, falseType) {
+        return node.checkType !== checkType
+            || node.extendsType !== extendsType
+            || node.trueType !== trueType
+            || node.falseType !== falseType
+            ? updateNode(createConditionalTypeNode(checkType, extendsType, trueType, falseType), node)
+            : node;
+    }
+    ts.updateConditionalTypeNode = updateConditionalTypeNode;
+    function createInferTypeNode(typeParameter) {
+        var node = createSynthesizedNode(181);
+        node.typeParameter = typeParameter;
+        return node;
+    }
+    ts.createInferTypeNode = createInferTypeNode;
+    function updateInferTypeNode(node, typeParameter) {
+        return node.typeParameter !== typeParameter
+            ? updateNode(createInferTypeNode(typeParameter), node)
+            : node;
+    }
+    ts.updateInferTypeNode = updateInferTypeNode;
+    function createImportTypeNode(argument, qualifier, typeArguments, isTypeOf) {
+        var node = createSynthesizedNode(188);
+        node.argument = argument;
+        node.qualifier = qualifier;
+        node.typeArguments = ts.parenthesizeTypeParameters(typeArguments);
+        node.isTypeOf = isTypeOf;
+        return node;
+    }
+    ts.createImportTypeNode = createImportTypeNode;
+    function updateImportTypeNode(node, argument, qualifier, typeArguments, isTypeOf) {
+        return node.argument !== argument
+            || node.qualifier !== qualifier
+            || node.typeArguments !== typeArguments
+            || node.isTypeOf !== isTypeOf
+            ? updateNode(createImportTypeNode(argument, qualifier, typeArguments, isTypeOf), node)
+            : node;
+    }
+    ts.updateImportTypeNode = updateImportTypeNode;
+    function createParenthesizedType(type) {
+        var node = createSynthesizedNode(182);
+        node.type = type;
+        return node;
+    }
+    ts.createParenthesizedType = createParenthesizedType;
+    function updateParenthesizedType(node, type) {
+        return node.type !== type
+            ? updateNode(createParenthesizedType(type), node)
+            : node;
+    }
+    ts.updateParenthesizedType = updateParenthesizedType;
+    function createThisTypeNode() {
+        return createSynthesizedNode(183);
+    }
+    ts.createThisTypeNode = createThisTypeNode;
+    function createTypeOperatorNode(operatorOrType, type) {
+        var node = createSynthesizedNode(184);
+        node.operator = typeof operatorOrType === "number" ? operatorOrType : 134;
+        node.type = ts.parenthesizeElementTypeMember(typeof operatorOrType === "number" ? type : operatorOrType);
+        return node;
+    }
+    ts.createTypeOperatorNode = createTypeOperatorNode;
+    function updateTypeOperatorNode(node, type) {
+        return node.type !== type ? updateNode(createTypeOperatorNode(node.operator, type), node) : node;
+    }
+    ts.updateTypeOperatorNode = updateTypeOperatorNode;
+    function createIndexedAccessTypeNode(objectType, indexType) {
+        var node = createSynthesizedNode(185);
+        node.objectType = ts.parenthesizeElementTypeMember(objectType);
+        node.indexType = indexType;
+        return node;
+    }
+    ts.createIndexedAccessTypeNode = createIndexedAccessTypeNode;
+    function updateIndexedAccessTypeNode(node, objectType, indexType) {
+        return node.objectType !== objectType
+            || node.indexType !== indexType
+            ? updateNode(createIndexedAccessTypeNode(objectType, indexType), node)
+            : node;
+    }
+    ts.updateIndexedAccessTypeNode = updateIndexedAccessTypeNode;
+    function createMappedTypeNode(readonlyToken, typeParameter, questionToken, type) {
+        var node = createSynthesizedNode(186);
+        node.readonlyToken = readonlyToken;
+        node.typeParameter = typeParameter;
+        node.questionToken = questionToken;
+        node.type = type;
+        return node;
+    }
+    ts.createMappedTypeNode = createMappedTypeNode;
+    function updateMappedTypeNode(node, readonlyToken, typeParameter, questionToken, type) {
+        return node.readonlyToken !== readonlyToken
+            || node.typeParameter !== typeParameter
+            || node.questionToken !== questionToken
+            || node.type !== type
+            ? updateNode(createMappedTypeNode(readonlyToken, typeParameter, questionToken, type), node)
+            : node;
+    }
+    ts.updateMappedTypeNode = updateMappedTypeNode;
+    function createLiteralTypeNode(literal) {
+        var node = createSynthesizedNode(187);
+        node.literal = literal;
+        return node;
+    }
+    ts.createLiteralTypeNode = createLiteralTypeNode;
+    function updateLiteralTypeNode(node, literal) {
+        return node.literal !== literal
+            ? updateNode(createLiteralTypeNode(literal), node)
+            : node;
+    }
+    ts.updateLiteralTypeNode = updateLiteralTypeNode;
+    function createObjectBindingPattern(elements) {
+        var node = createSynthesizedNode(189);
+        node.elements = createNodeArray(elements);
+        return node;
+    }
+    ts.createObjectBindingPattern = createObjectBindingPattern;
+    function updateObjectBindingPattern(node, elements) {
+        return node.elements !== elements
+            ? updateNode(createObjectBindingPattern(elements), node)
+            : node;
+    }
+    ts.updateObjectBindingPattern = updateObjectBindingPattern;
+    function createArrayBindingPattern(elements) {
+        var node = createSynthesizedNode(190);
+        node.elements = createNodeArray(elements);
+        return node;
+    }
+    ts.createArrayBindingPattern = createArrayBindingPattern;
+    function updateArrayBindingPattern(node, elements) {
+        return node.elements !== elements
+            ? updateNode(createArrayBindingPattern(elements), node)
+            : node;
+    }
+    ts.updateArrayBindingPattern = updateArrayBindingPattern;
+    function createBindingElement(dotDotDotToken, propertyName, name, initializer) {
+        var node = createSynthesizedNode(191);
+        node.dotDotDotToken = dotDotDotToken;
+        node.propertyName = asName(propertyName);
+        node.name = asName(name);
+        node.initializer = initializer;
+        return node;
+    }
+    ts.createBindingElement = createBindingElement;
+    function updateBindingElement(node, dotDotDotToken, propertyName, name, initializer) {
+        return node.propertyName !== propertyName
+            || node.dotDotDotToken !== dotDotDotToken
+            || node.name !== name
+            || node.initializer !== initializer
+            ? updateNode(createBindingElement(dotDotDotToken, propertyName, name, initializer), node)
+            : node;
+    }
+    ts.updateBindingElement = updateBindingElement;
+    function createArrayLiteral(elements, multiLine) {
+        var node = createSynthesizedNode(192);
+        node.elements = ts.parenthesizeListElements(createNodeArray(elements));
+        if (multiLine)
+            node.multiLine = true;
+        return node;
+    }
+    ts.createArrayLiteral = createArrayLiteral;
+    function updateArrayLiteral(node, elements) {
+        return node.elements !== elements
+            ? updateNode(createArrayLiteral(elements, node.multiLine), node)
+            : node;
+    }
+    ts.updateArrayLiteral = updateArrayLiteral;
+    function createObjectLiteral(properties, multiLine) {
+        var node = createSynthesizedNode(193);
+        node.properties = createNodeArray(properties);
+        if (multiLine)
+            node.multiLine = true;
+        return node;
+    }
+    ts.createObjectLiteral = createObjectLiteral;
+    function updateObjectLiteral(node, properties) {
+        return node.properties !== properties
+            ? updateNode(createObjectLiteral(properties, node.multiLine), node)
+            : node;
+    }
+    ts.updateObjectLiteral = updateObjectLiteral;
+    function createPropertyAccess(expression, name) {
+        var node = createSynthesizedNode(194);
+        node.expression = ts.parenthesizeForAccess(expression);
+        node.name = asName(name);
+        setEmitFlags(node, 131072);
+        return node;
+    }
+    ts.createPropertyAccess = createPropertyAccess;
+    function updatePropertyAccess(node, expression, name) {
+        if (ts.isPropertyAccessChain(node)) {
+            return updatePropertyAccessChain(node, expression, node.questionDotToken, ts.cast(name, ts.isIdentifier));
+        }
+        return node.expression !== expression
+            || node.name !== name
+            ? updateNode(setEmitFlags(createPropertyAccess(expression, name), ts.getEmitFlags(node)), node)
+            : node;
+    }
+    ts.updatePropertyAccess = updatePropertyAccess;
+    function createPropertyAccessChain(expression, questionDotToken, name) {
+        var node = createSynthesizedNode(194);
+        node.flags |= 32;
+        node.expression = ts.parenthesizeForAccess(expression);
+        node.questionDotToken = questionDotToken;
+        node.name = asName(name);
+        setEmitFlags(node, 131072);
+        return node;
+    }
+    ts.createPropertyAccessChain = createPropertyAccessChain;
+    function updatePropertyAccessChain(node, expression, questionDotToken, name) {
+        ts.Debug.assert(!!(node.flags & 32), "Cannot update a PropertyAccessExpression using updatePropertyAccessChain. Use updatePropertyAccess instead.");
+        return node.expression !== expression
+            || node.questionDotToken !== questionDotToken
+            || node.name !== name
+            ? updateNode(setEmitFlags(createPropertyAccessChain(expression, questionDotToken, name), ts.getEmitFlags(node)), node)
+            : node;
+    }
+    ts.updatePropertyAccessChain = updatePropertyAccessChain;
+    function createElementAccess(expression, index) {
+        var node = createSynthesizedNode(195);
+        node.expression = ts.parenthesizeForAccess(expression);
+        node.argumentExpression = asExpression(index);
+        return node;
+    }
+    ts.createElementAccess = createElementAccess;
+    function updateElementAccess(node, expression, argumentExpression) {
+        if (ts.isOptionalChain(node)) {
+            return updateElementAccessChain(node, expression, node.questionDotToken, argumentExpression);
+        }
+        return node.expression !== expression
+            || node.argumentExpression !== argumentExpression
+            ? updateNode(createElementAccess(expression, argumentExpression), node)
+            : node;
+    }
+    ts.updateElementAccess = updateElementAccess;
+    function createElementAccessChain(expression, questionDotToken, index) {
+        var node = createSynthesizedNode(195);
+        node.flags |= 32;
+        node.expression = ts.parenthesizeForAccess(expression);
+        node.questionDotToken = questionDotToken;
+        node.argumentExpression = asExpression(index);
+        return node;
+    }
+    ts.createElementAccessChain = createElementAccessChain;
+    function updateElementAccessChain(node, expression, questionDotToken, argumentExpression) {
+        ts.Debug.assert(!!(node.flags & 32), "Cannot update an ElementAccessExpression using updateElementAccessChain. Use updateElementAccess instead.");
+        return node.expression !== expression
+            || node.questionDotToken !== questionDotToken
+            || node.argumentExpression !== argumentExpression
+            ? updateNode(createElementAccessChain(expression, questionDotToken, argumentExpression), node)
+            : node;
+    }
+    ts.updateElementAccessChain = updateElementAccessChain;
+    function createCall(expression, typeArguments, argumentsArray) {
+        var node = createSynthesizedNode(196);
+        node.expression = ts.parenthesizeForAccess(expression);
+        node.typeArguments = asNodeArray(typeArguments);
+        node.arguments = ts.parenthesizeListElements(createNodeArray(argumentsArray));
+        return node;
+    }
+    ts.createCall = createCall;
+    function updateCall(node, expression, typeArguments, argumentsArray) {
+        if (ts.isOptionalChain(node)) {
+            return updateCallChain(node, expression, node.questionDotToken, typeArguments, argumentsArray);
+        }
+        return node.expression !== expression
+            || node.typeArguments !== typeArguments
+            || node.arguments !== argumentsArray
+            ? updateNode(createCall(expression, typeArguments, argumentsArray), node)
+            : node;
+    }
+    ts.updateCall = updateCall;
+    function createCallChain(expression, questionDotToken, typeArguments, argumentsArray) {
+        var node = createSynthesizedNode(196);
+        node.flags |= 32;
+        node.expression = ts.parenthesizeForAccess(expression);
+        node.questionDotToken = questionDotToken;
+        node.typeArguments = asNodeArray(typeArguments);
+        node.arguments = ts.parenthesizeListElements(createNodeArray(argumentsArray));
+        return node;
+    }
+    ts.createCallChain = createCallChain;
+    function updateCallChain(node, expression, questionDotToken, typeArguments, argumentsArray) {
+        ts.Debug.assert(!!(node.flags & 32), "Cannot update a CallExpression using updateCallChain. Use updateCall instead.");
+        return node.expression !== expression
+            || node.questionDotToken !== questionDotToken
+            || node.typeArguments !== typeArguments
+            || node.arguments !== argumentsArray
+            ? updateNode(createCallChain(expression, questionDotToken, typeArguments, argumentsArray), node)
+            : node;
+    }
+    ts.updateCallChain = updateCallChain;
+    function createNew(expression, typeArguments, argumentsArray) {
+        var node = createSynthesizedNode(197);
+        node.expression = ts.parenthesizeForNew(expression);
+        node.typeArguments = asNodeArray(typeArguments);
+        node.arguments = argumentsArray ? ts.parenthesizeListElements(createNodeArray(argumentsArray)) : undefined;
+        return node;
+    }
+    ts.createNew = createNew;
+    function updateNew(node, expression, typeArguments, argumentsArray) {
+        return node.expression !== expression
+            || node.typeArguments !== typeArguments
+            || node.arguments !== argumentsArray
+            ? updateNode(createNew(expression, typeArguments, argumentsArray), node)
+            : node;
+    }
+    ts.updateNew = updateNew;
+    function createTaggedTemplate(tag, typeArgumentsOrTemplate, template) {
+        var node = createSynthesizedNode(198);
+        node.tag = ts.parenthesizeForAccess(tag);
+        if (template) {
+            node.typeArguments = asNodeArray(typeArgumentsOrTemplate);
+            node.template = template;
+        }
+        else {
+            node.typeArguments = undefined;
+            node.template = typeArgumentsOrTemplate;
+        }
+        return node;
+    }
+    ts.createTaggedTemplate = createTaggedTemplate;
+    function updateTaggedTemplate(node, tag, typeArgumentsOrTemplate, template) {
+        return node.tag !== tag
+            || (template
+                ? node.typeArguments !== typeArgumentsOrTemplate || node.template !== template
+                : node.typeArguments !== undefined || node.template !== typeArgumentsOrTemplate)
+            ? updateNode(createTaggedTemplate(tag, typeArgumentsOrTemplate, template), node)
+            : node;
+    }
+    ts.updateTaggedTemplate = updateTaggedTemplate;
+    function createTypeAssertion(type, expression) {
+        var node = createSynthesizedNode(199);
+        node.type = type;
+        node.expression = ts.parenthesizePrefixOperand(expression);
+        return node;
+    }
+    ts.createTypeAssertion = createTypeAssertion;
+    function updateTypeAssertion(node, type, expression) {
+        return node.type !== type
+            || node.expression !== expression
+            ? updateNode(createTypeAssertion(type, expression), node)
+            : node;
+    }
+    ts.updateTypeAssertion = updateTypeAssertion;
+    function createParen(expression) {
+        var node = createSynthesizedNode(200);
+        node.expression = expression;
+        return node;
+    }
+    ts.createParen = createParen;
+    function updateParen(node, expression) {
+        return node.expression !== expression
+            ? updateNode(createParen(expression), node)
+            : node;
+    }
+    ts.updateParen = updateParen;
+    function createFunctionExpression(modifiers, asteriskToken, name, typeParameters, parameters, type, body) {
+        var node = createSynthesizedNode(201);
+        node.modifiers = asNodeArray(modifiers);
+        node.asteriskToken = asteriskToken;
+        node.name = asName(name);
+        node.typeParameters = asNodeArray(typeParameters);
+        node.parameters = createNodeArray(parameters);
+        node.type = type;
+        node.body = body;
+        return node;
+    }
+    ts.createFunctionExpression = createFunctionExpression;
+    function updateFunctionExpression(node, modifiers, asteriskToken, name, typeParameters, parameters, type, body) {
+        return node.name !== name
+            || node.modifiers !== modifiers
+            || node.asteriskToken !== asteriskToken
+            || node.typeParameters !== typeParameters
+            || node.parameters !== parameters
+            || node.type !== type
+            || node.body !== body
+            ? updateNode(createFunctionExpression(modifiers, asteriskToken, name, typeParameters, parameters, type, body), node)
+            : node;
+    }
+    ts.updateFunctionExpression = updateFunctionExpression;
+    function createArrowFunction(modifiers, typeParameters, parameters, type, equalsGreaterThanToken, body) {
+        var node = createSynthesizedNode(202);
+        node.modifiers = asNodeArray(modifiers);
+        node.typeParameters = asNodeArray(typeParameters);
+        node.parameters = createNodeArray(parameters);
+        node.type = type;
+        node.equalsGreaterThanToken = equalsGreaterThanToken || createToken(38);
+        node.body = ts.parenthesizeConciseBody(body);
+        return node;
+    }
+    ts.createArrowFunction = createArrowFunction;
+    function updateArrowFunction(node, modifiers, typeParameters, parameters, type, equalsGreaterThanToken, body) {
+        return node.modifiers !== modifiers
+            || node.typeParameters !== typeParameters
+            || node.parameters !== parameters
+            || node.type !== type
+            || node.equalsGreaterThanToken !== equalsGreaterThanToken
+            || node.body !== body
+            ? updateNode(createArrowFunction(modifiers, typeParameters, parameters, type, equalsGreaterThanToken, body), node)
+            : node;
+    }
+    ts.updateArrowFunction = updateArrowFunction;
+    function createDelete(expression) {
+        var node = createSynthesizedNode(203);
+        node.expression = ts.parenthesizePrefixOperand(expression);
+        return node;
+    }
+    ts.createDelete = createDelete;
+    function updateDelete(node, expression) {
+        return node.expression !== expression
+            ? updateNode(createDelete(expression), node)
+            : node;
+    }
+    ts.updateDelete = updateDelete;
+    function createTypeOf(expression) {
+        var node = createSynthesizedNode(204);
+        node.expression = ts.parenthesizePrefixOperand(expression);
+        return node;
+    }
+    ts.createTypeOf = createTypeOf;
+    function updateTypeOf(node, expression) {
+        return node.expression !== expression
+            ? updateNode(createTypeOf(expression), node)
+            : node;
+    }
+    ts.updateTypeOf = updateTypeOf;
+    function createVoid(expression) {
+        var node = createSynthesizedNode(205);
+        node.expression = ts.parenthesizePrefixOperand(expression);
+        return node;
+    }
+    ts.createVoid = createVoid;
+    function updateVoid(node, expression) {
+        return node.expression !== expression
+            ? updateNode(createVoid(expression), node)
+            : node;
+    }
+    ts.updateVoid = updateVoid;
+    function createAwait(expression) {
+        var node = createSynthesizedNode(206);
+        node.expression = ts.parenthesizePrefixOperand(expression);
+        return node;
+    }
+    ts.createAwait = createAwait;
+    function updateAwait(node, expression) {
+        return node.expression !== expression
+            ? updateNode(createAwait(expression), node)
+            : node;
+    }
+    ts.updateAwait = updateAwait;
+    function createPrefix(operator, operand) {
+        var node = createSynthesizedNode(207);
+        node.operator = operator;
+        node.operand = ts.parenthesizePrefixOperand(operand);
+        return node;
+    }
+    ts.createPrefix = createPrefix;
+    function updatePrefix(node, operand) {
+        return node.operand !== operand
+            ? updateNode(createPrefix(node.operator, operand), node)
+            : node;
+    }
+    ts.updatePrefix = updatePrefix;
+    function createPostfix(operand, operator) {
+        var node = createSynthesizedNode(208);
+        node.operand = ts.parenthesizePostfixOperand(operand);
+        node.operator = operator;
+        return node;
+    }
+    ts.createPostfix = createPostfix;
+    function updatePostfix(node, operand) {
+        return node.operand !== operand
+            ? updateNode(createPostfix(operand, node.operator), node)
+            : node;
+    }
+    ts.updatePostfix = updatePostfix;
+    function createBinary(left, operator, right) {
+        var node = createSynthesizedNode(209);
+        var operatorToken = asToken(operator);
+        var operatorKind = operatorToken.kind;
+        node.left = ts.parenthesizeBinaryOperand(operatorKind, left, true, undefined);
+        node.operatorToken = operatorToken;
+        node.right = ts.parenthesizeBinaryOperand(operatorKind, right, false, node.left);
+        return node;
+    }
+    ts.createBinary = createBinary;
+    function updateBinary(node, left, right, operator) {
+        return node.left !== left
+            || node.right !== right
+            ? updateNode(createBinary(left, operator || node.operatorToken, right), node)
+            : node;
+    }
+    ts.updateBinary = updateBinary;
+    function createConditional(condition, questionTokenOrWhenTrue, whenTrueOrWhenFalse, colonToken, whenFalse) {
+        var node = createSynthesizedNode(210);
+        node.condition = ts.parenthesizeForConditionalHead(condition);
+        node.questionToken = whenFalse ? questionTokenOrWhenTrue : createToken(57);
+        node.whenTrue = ts.parenthesizeSubexpressionOfConditionalExpression(whenFalse ? whenTrueOrWhenFalse : questionTokenOrWhenTrue);
+        node.colonToken = whenFalse ? colonToken : createToken(58);
+        node.whenFalse = ts.parenthesizeSubexpressionOfConditionalExpression(whenFalse ? whenFalse : whenTrueOrWhenFalse);
+        return node;
+    }
+    ts.createConditional = createConditional;
+    function updateConditional(node, condition, questionToken, whenTrue, colonToken, whenFalse) {
+        return node.condition !== condition
+            || node.questionToken !== questionToken
+            || node.whenTrue !== whenTrue
+            || node.colonToken !== colonToken
+            || node.whenFalse !== whenFalse
+            ? updateNode(createConditional(condition, questionToken, whenTrue, colonToken, whenFalse), node)
+            : node;
+    }
+    ts.updateConditional = updateConditional;
+    function createTemplateExpression(head, templateSpans) {
+        var node = createSynthesizedNode(211);
+        node.head = head;
+        node.templateSpans = createNodeArray(templateSpans);
+        return node;
+    }
+    ts.createTemplateExpression = createTemplateExpression;
+    function updateTemplateExpression(node, head, templateSpans) {
+        return node.head !== head
+            || node.templateSpans !== templateSpans
+            ? updateNode(createTemplateExpression(head, templateSpans), node)
+            : node;
+    }
+    ts.updateTemplateExpression = updateTemplateExpression;
+    var rawTextScanner;
+    var invalidValueSentinel = {};
+    function getCookedText(kind, rawText) {
+        if (!rawTextScanner) {
+            rawTextScanner = ts.createScanner(99, false, 0);
+        }
+        switch (kind) {
+            case 14:
+                rawTextScanner.setText("`" + rawText + "`");
+                break;
+            case 15:
+                rawTextScanner.setText("`" + rawText + "${");
+                break;
+            case 16:
+                rawTextScanner.setText("}" + rawText + "${");
+                break;
+            case 17:
+                rawTextScanner.setText("}" + rawText + "`");
+                break;
+        }
+        var token = rawTextScanner.scan();
+        if (token === 23) {
+            token = rawTextScanner.reScanTemplateToken(false);
+        }
+        if (rawTextScanner.isUnterminated()) {
+            rawTextScanner.setText(undefined);
+            return invalidValueSentinel;
+        }
+        var tokenValue;
+        switch (token) {
+            case 14:
+            case 15:
+            case 16:
+            case 17:
+                tokenValue = rawTextScanner.getTokenValue();
+                break;
+        }
+        if (rawTextScanner.scan() !== 1) {
+            rawTextScanner.setText(undefined);
+            return invalidValueSentinel;
+        }
+        rawTextScanner.setText(undefined);
+        return tokenValue;
+    }
+    function createTemplateLiteralLikeNode(kind, text, rawText) {
+        var node = createSynthesizedNode(kind);
+        node.text = text;
+        if (rawText === undefined || text === rawText) {
+            node.rawText = rawText;
+        }
+        else {
+            var cooked = getCookedText(kind, rawText);
+            if (typeof cooked === "object") {
+                return ts.Debug.fail("Invalid raw text");
+            }
+            ts.Debug.assert(text === cooked, "Expected argument 'text' to be the normalized (i.e. 'cooked') version of argument 'rawText'.");
+            node.rawText = rawText;
+        }
+        return node;
+    }
+    function createTemplateHead(text, rawText) {
+        var node = createTemplateLiteralLikeNode(15, text, rawText);
+        node.text = text;
+        return node;
+    }
+    ts.createTemplateHead = createTemplateHead;
+    function createTemplateMiddle(text, rawText) {
+        var node = createTemplateLiteralLikeNode(16, text, rawText);
+        node.text = text;
+        return node;
+    }
+    ts.createTemplateMiddle = createTemplateMiddle;
+    function createTemplateTail(text, rawText) {
+        var node = createTemplateLiteralLikeNode(17, text, rawText);
+        node.text = text;
+        return node;
+    }
+    ts.createTemplateTail = createTemplateTail;
+    function createNoSubstitutionTemplateLiteral(text, rawText) {
+        var node = createTemplateLiteralLikeNode(14, text, rawText);
+        return node;
+    }
+    ts.createNoSubstitutionTemplateLiteral = createNoSubstitutionTemplateLiteral;
+    function createYield(asteriskTokenOrExpression, expression) {
+        var asteriskToken = asteriskTokenOrExpression && asteriskTokenOrExpression.kind === 41 ? asteriskTokenOrExpression : undefined;
+        expression = asteriskTokenOrExpression && asteriskTokenOrExpression.kind !== 41 ? asteriskTokenOrExpression : expression;
+        var node = createSynthesizedNode(212);
+        node.asteriskToken = asteriskToken;
+        node.expression = expression && ts.parenthesizeExpressionForList(expression);
+        return node;
+    }
+    ts.createYield = createYield;
+    function updateYield(node, asteriskToken, expression) {
+        return node.expression !== expression
+            || node.asteriskToken !== asteriskToken
+            ? updateNode(createYield(asteriskToken, expression), node)
+            : node;
+    }
+    ts.updateYield = updateYield;
+    function createSpread(expression) {
+        var node = createSynthesizedNode(213);
+        node.expression = ts.parenthesizeExpressionForList(expression);
+        return node;
+    }
+    ts.createSpread = createSpread;
+    function updateSpread(node, expression) {
+        return node.expression !== expression
+            ? updateNode(createSpread(expression), node)
+            : node;
+    }
+    ts.updateSpread = updateSpread;
+    function createClassExpression(modifiers, name, typeParameters, heritageClauses, members) {
+        var node = createSynthesizedNode(214);
+        node.decorators = undefined;
+        node.modifiers = asNodeArray(modifiers);
+        node.name = asName(name);
+        node.typeParameters = asNodeArray(typeParameters);
+        node.heritageClauses = asNodeArray(heritageClauses);
+        node.members = createNodeArray(members);
+        return node;
+    }
+    ts.createClassExpression = createClassExpression;
+    function updateClassExpression(node, modifiers, name, typeParameters, heritageClauses, members) {
+        return node.modifiers !== modifiers
+            || node.name !== name
+            || node.typeParameters !== typeParameters
+            || node.heritageClauses !== heritageClauses
+            || node.members !== members
+            ? updateNode(createClassExpression(modifiers, name, typeParameters, heritageClauses, members), node)
+            : node;
+    }
+    ts.updateClassExpression = updateClassExpression;
+    function createOmittedExpression() {
+        return createSynthesizedNode(215);
+    }
+    ts.createOmittedExpression = createOmittedExpression;
+    function createExpressionWithTypeArguments(typeArguments, expression) {
+        var node = createSynthesizedNode(216);
+        node.expression = ts.parenthesizeForAccess(expression);
+        node.typeArguments = asNodeArray(typeArguments);
+        return node;
+    }
+    ts.createExpressionWithTypeArguments = createExpressionWithTypeArguments;
+    function updateExpressionWithTypeArguments(node, typeArguments, expression) {
+        return node.typeArguments !== typeArguments
+            || node.expression !== expression
+            ? updateNode(createExpressionWithTypeArguments(typeArguments, expression), node)
+            : node;
+    }
+    ts.updateExpressionWithTypeArguments = updateExpressionWithTypeArguments;
+    function createAsExpression(expression, type) {
+        var node = createSynthesizedNode(217);
+        node.expression = expression;
+        node.type = type;
+        return node;
+    }
+    ts.createAsExpression = createAsExpression;
+    function updateAsExpression(node, expression, type) {
+        return node.expression !== expression
+            || node.type !== type
+            ? updateNode(createAsExpression(expression, type), node)
+            : node;
+    }
+    ts.updateAsExpression = updateAsExpression;
+    function createNonNullExpression(expression) {
+        var node = createSynthesizedNode(218);
+        node.expression = ts.parenthesizeForAccess(expression);
+        return node;
+    }
+    ts.createNonNullExpression = createNonNullExpression;
+    function updateNonNullExpression(node, expression) {
+        if (ts.isNonNullChain(node)) {
+            return updateNonNullChain(node, expression);
+        }
+        return node.expression !== expression
+            ? updateNode(createNonNullExpression(expression), node)
+            : node;
+    }
+    ts.updateNonNullExpression = updateNonNullExpression;
+    function createNonNullChain(expression) {
+        var node = createSynthesizedNode(218);
+        node.flags |= 32;
+        node.expression = ts.parenthesizeForAccess(expression);
+        return node;
+    }
+    ts.createNonNullChain = createNonNullChain;
+    function updateNonNullChain(node, expression) {
+        ts.Debug.assert(!!(node.flags & 32), "Cannot update a NonNullExpression using updateNonNullChain. Use updateNonNullExpression instead.");
+        return node.expression !== expression
+            ? updateNode(createNonNullChain(expression), node)
+            : node;
+    }
+    ts.updateNonNullChain = updateNonNullChain;
+    function createMetaProperty(keywordToken, name) {
+        var node = createSynthesizedNode(219);
+        node.keywordToken = keywordToken;
+        node.name = name;
+        return node;
+    }
+    ts.createMetaProperty = createMetaProperty;
+    function updateMetaProperty(node, name) {
+        return node.name !== name
+            ? updateNode(createMetaProperty(node.keywordToken, name), node)
+            : node;
+    }
+    ts.updateMetaProperty = updateMetaProperty;
+    function createTemplateSpan(expression, literal) {
+        var node = createSynthesizedNode(221);
+        node.expression = expression;
+        node.literal = literal;
+        return node;
+    }
+    ts.createTemplateSpan = createTemplateSpan;
+    function updateTemplateSpan(node, expression, literal) {
+        return node.expression !== expression
+            || node.literal !== literal
+            ? updateNode(createTemplateSpan(expression, literal), node)
+            : node;
+    }
+    ts.updateTemplateSpan = updateTemplateSpan;
+    function createSemicolonClassElement() {
+        return createSynthesizedNode(222);
+    }
+    ts.createSemicolonClassElement = createSemicolonClassElement;
+    function createBlock(statements, multiLine) {
+        var block = createSynthesizedNode(223);
+        block.statements = createNodeArray(statements);
+        if (multiLine)
+            block.multiLine = multiLine;
+        return block;
+    }
+    ts.createBlock = createBlock;
+    function updateBlock(node, statements) {
+        return node.statements !== statements
+            ? updateNode(createBlock(statements, node.multiLine), node)
+            : node;
+    }
+    ts.updateBlock = updateBlock;
+    function createVariableStatement(modifiers, declarationList) {
+        var node = createSynthesizedNode(225);
+        node.decorators = undefined;
+        node.modifiers = asNodeArray(modifiers);
+        node.declarationList = ts.isArray(declarationList) ? createVariableDeclarationList(declarationList) : declarationList;
+        return node;
+    }
+    ts.createVariableStatement = createVariableStatement;
+    function updateVariableStatement(node, modifiers, declarationList) {
+        return node.modifiers !== modifiers
+            || node.declarationList !== declarationList
+            ? updateNode(createVariableStatement(modifiers, declarationList), node)
+            : node;
+    }
+    ts.updateVariableStatement = updateVariableStatement;
+    function createEmptyStatement() {
+        return createSynthesizedNode(224);
+    }
+    ts.createEmptyStatement = createEmptyStatement;
+    function createExpressionStatement(expression) {
+        var node = createSynthesizedNode(226);
+        node.expression = ts.parenthesizeExpressionForExpressionStatement(expression);
+        return node;
+    }
+    ts.createExpressionStatement = createExpressionStatement;
+    function updateExpressionStatement(node, expression) {
+        return node.expression !== expression
+            ? updateNode(createExpressionStatement(expression), node)
+            : node;
+    }
+    ts.updateExpressionStatement = updateExpressionStatement;
+    ts.createStatement = createExpressionStatement;
+    ts.updateStatement = updateExpressionStatement;
+    function createIf(expression, thenStatement, elseStatement) {
+        var node = createSynthesizedNode(227);
+        node.expression = expression;
+        node.thenStatement = asEmbeddedStatement(thenStatement);
+        node.elseStatement = asEmbeddedStatement(elseStatement);
+        return node;
+    }
+    ts.createIf = createIf;
+    function updateIf(node, expression, thenStatement, elseStatement) {
+        return node.expression !== expression
+            || node.thenStatement !== thenStatement
+            || node.elseStatement !== elseStatement
+            ? updateNode(createIf(expression, thenStatement, elseStatement), node)
+            : node;
+    }
+    ts.updateIf = updateIf;
+    function createDo(statement, expression) {
+        var node = createSynthesizedNode(228);
+        node.statement = asEmbeddedStatement(statement);
+        node.expression = expression;
+        return node;
+    }
+    ts.createDo = createDo;
+    function updateDo(node, statement, expression) {
+        return node.statement !== statement
+            || node.expression !== expression
+            ? updateNode(createDo(statement, expression), node)
+            : node;
+    }
+    ts.updateDo = updateDo;
+    function createWhile(expression, statement) {
+        var node = createSynthesizedNode(229);
+        node.expression = expression;
+        node.statement = asEmbeddedStatement(statement);
+        return node;
+    }
+    ts.createWhile = createWhile;
+    function updateWhile(node, expression, statement) {
+        return node.expression !== expression
+            || node.statement !== statement
+            ? updateNode(createWhile(expression, statement), node)
+            : node;
+    }
+    ts.updateWhile = updateWhile;
+    function createFor(initializer, condition, incrementor, statement) {
+        var node = createSynthesizedNode(230);
+        node.initializer = initializer;
+        node.condition = condition;
+        node.incrementor = incrementor;
+        node.statement = asEmbeddedStatement(statement);
+        return node;
+    }
+    ts.createFor = createFor;
+    function updateFor(node, initializer, condition, incrementor, statement) {
+        return node.initializer !== initializer
+            || node.condition !== condition
+            || node.incrementor !== incrementor
+            || node.statement !== statement
+            ? updateNode(createFor(initializer, condition, incrementor, statement), node)
+            : node;
+    }
+    ts.updateFor = updateFor;
+    function createForIn(initializer, expression, statement) {
+        var node = createSynthesizedNode(231);
+        node.initializer = initializer;
+        node.expression = expression;
+        node.statement = asEmbeddedStatement(statement);
+        return node;
+    }
+    ts.createForIn = createForIn;
+    function updateForIn(node, initializer, expression, statement) {
+        return node.initializer !== initializer
+            || node.expression !== expression
+            || node.statement !== statement
+            ? updateNode(createForIn(initializer, expression, statement), node)
+            : node;
+    }
+    ts.updateForIn = updateForIn;
+    function createForOf(awaitModifier, initializer, expression, statement) {
+        var node = createSynthesizedNode(232);
+        node.awaitModifier = awaitModifier;
+        node.initializer = initializer;
+        node.expression = ts.isCommaSequence(expression) ? createParen(expression) : expression;
+        node.statement = asEmbeddedStatement(statement);
+        return node;
+    }
+    ts.createForOf = createForOf;
+    function updateForOf(node, awaitModifier, initializer, expression, statement) {
+        return node.awaitModifier !== awaitModifier
+            || node.initializer !== initializer
+            || node.expression !== expression
+            || node.statement !== statement
+            ? updateNode(createForOf(awaitModifier, initializer, expression, statement), node)
+            : node;
+    }
+    ts.updateForOf = updateForOf;
+    function createContinue(label) {
+        var node = createSynthesizedNode(233);
+        node.label = asName(label);
+        return node;
+    }
+    ts.createContinue = createContinue;
+    function updateContinue(node, label) {
+        return node.label !== label
+            ? updateNode(createContinue(label), node)
+            : node;
+    }
+    ts.updateContinue = updateContinue;
+    function createBreak(label) {
+        var node = createSynthesizedNode(234);
+        node.label = asName(label);
+        return node;
+    }
+    ts.createBreak = createBreak;
+    function updateBreak(node, label) {
+        return node.label !== label
+            ? updateNode(createBreak(label), node)
+            : node;
+    }
+    ts.updateBreak = updateBreak;
+    function createReturn(expression) {
+        var node = createSynthesizedNode(235);
+        node.expression = expression;
+        return node;
+    }
+    ts.createReturn = createReturn;
+    function updateReturn(node, expression) {
+        return node.expression !== expression
+            ? updateNode(createReturn(expression), node)
+            : node;
+    }
+    ts.updateReturn = updateReturn;
+    function createWith(expression, statement) {
+        var node = createSynthesizedNode(236);
+        node.expression = expression;
+        node.statement = asEmbeddedStatement(statement);
+        return node;
+    }
+    ts.createWith = createWith;
+    function updateWith(node, expression, statement) {
+        return node.expression !== expression
+            || node.statement !== statement
+            ? updateNode(createWith(expression, statement), node)
+            : node;
+    }
+    ts.updateWith = updateWith;
+    function createSwitch(expression, caseBlock) {
+        var node = createSynthesizedNode(237);
+        node.expression = ts.parenthesizeExpressionForList(expression);
+        node.caseBlock = caseBlock;
+        return node;
+    }
+    ts.createSwitch = createSwitch;
+    function updateSwitch(node, expression, caseBlock) {
+        return node.expression !== expression
+            || node.caseBlock !== caseBlock
+            ? updateNode(createSwitch(expression, caseBlock), node)
+            : node;
+    }
+    ts.updateSwitch = updateSwitch;
+    function createLabel(label, statement) {
+        var node = createSynthesizedNode(238);
+        node.label = asName(label);
+        node.statement = asEmbeddedStatement(statement);
+        return node;
+    }
+    ts.createLabel = createLabel;
+    function updateLabel(node, label, statement) {
+        return node.label !== label
+            || node.statement !== statement
+            ? updateNode(createLabel(label, statement), node)
+            : node;
+    }
+    ts.updateLabel = updateLabel;
+    function createThrow(expression) {
+        var node = createSynthesizedNode(239);
+        node.expression = expression;
+        return node;
+    }
+    ts.createThrow = createThrow;
+    function updateThrow(node, expression) {
+        return node.expression !== expression
+            ? updateNode(createThrow(expression), node)
+            : node;
+    }
+    ts.updateThrow = updateThrow;
+    function createTry(tryBlock, catchClause, finallyBlock) {
+        var node = createSynthesizedNode(240);
+        node.tryBlock = tryBlock;
+        node.catchClause = catchClause;
+        node.finallyBlock = finallyBlock;
+        return node;
+    }
+    ts.createTry = createTry;
+    function updateTry(node, tryBlock, catchClause, finallyBlock) {
+        return node.tryBlock !== tryBlock
+            || node.catchClause !== catchClause
+            || node.finallyBlock !== finallyBlock
+            ? updateNode(createTry(tryBlock, catchClause, finallyBlock), node)
+            : node;
+    }
+    ts.updateTry = updateTry;
+    function createDebuggerStatement() {
+        return createSynthesizedNode(241);
+    }
+    ts.createDebuggerStatement = createDebuggerStatement;
+    function createVariableDeclaration(name, type, initializer) {
+        var node = createSynthesizedNode(242);
+        node.name = asName(name);
+        node.type = type;
+        node.initializer = initializer !== undefined ? ts.parenthesizeExpressionForList(initializer) : undefined;
+        return node;
+    }
+    ts.createVariableDeclaration = createVariableDeclaration;
+    function updateVariableDeclaration(node, name, type, initializer) {
+        return node.name !== name
+            || node.type !== type
+            || node.initializer !== initializer
+            ? updateNode(createVariableDeclaration(name, type, initializer), node)
+            : node;
+    }
+    ts.updateVariableDeclaration = updateVariableDeclaration;
+    function createTypeScriptVariableDeclaration(name, exclaimationToken, type, initializer) {
+        var node = createSynthesizedNode(242);
+        node.name = asName(name);
+        node.type = type;
+        node.initializer = initializer !== undefined ? ts.parenthesizeExpressionForList(initializer) : undefined;
+        node.exclamationToken = exclaimationToken;
+        return node;
+    }
+    ts.createTypeScriptVariableDeclaration = createTypeScriptVariableDeclaration;
+    function updateTypeScriptVariableDeclaration(node, name, exclaimationToken, type, initializer) {
+        return node.name !== name
+            || node.type !== type
+            || node.initializer !== initializer
+            || node.exclamationToken !== exclaimationToken
+            ? updateNode(createTypeScriptVariableDeclaration(name, exclaimationToken, type, initializer), node)
+            : node;
+    }
+    ts.updateTypeScriptVariableDeclaration = updateTypeScriptVariableDeclaration;
+    function createVariableDeclarationList(declarations, flags) {
+        if (flags === void 0) { flags = 0; }
+        var node = createSynthesizedNode(243);
+        node.flags |= flags & 3;
+        node.declarations = createNodeArray(declarations);
+        return node;
+    }
+    ts.createVariableDeclarationList = createVariableDeclarationList;
+    function updateVariableDeclarationList(node, declarations) {
+        return node.declarations !== declarations
+            ? updateNode(createVariableDeclarationList(declarations, node.flags), node)
+            : node;
+    }
+    ts.updateVariableDeclarationList = updateVariableDeclarationList;
+    function createFunctionDeclaration(decorators, modifiers, asteriskToken, name, typeParameters, parameters, type, body) {
+        var node = createSynthesizedNode(244);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.asteriskToken = asteriskToken;
+        node.name = asName(name);
+        node.typeParameters = asNodeArray(typeParameters);
+        node.parameters = createNodeArray(parameters);
+        node.type = type;
+        node.body = body;
+        return node;
+    }
+    ts.createFunctionDeclaration = createFunctionDeclaration;
+    function updateFunctionDeclaration(node, decorators, modifiers, asteriskToken, name, typeParameters, parameters, type, body) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.asteriskToken !== asteriskToken
+            || node.name !== name
+            || node.typeParameters !== typeParameters
+            || node.parameters !== parameters
+            || node.type !== type
+            || node.body !== body
+            ? updateNode(createFunctionDeclaration(decorators, modifiers, asteriskToken, name, typeParameters, parameters, type, body), node)
+            : node;
+    }
+    ts.updateFunctionDeclaration = updateFunctionDeclaration;
+    function updateFunctionLikeBody(declaration, body) {
+        switch (declaration.kind) {
+            case 244:
+                return createFunctionDeclaration(declaration.decorators, declaration.modifiers, declaration.asteriskToken, declaration.name, declaration.typeParameters, declaration.parameters, declaration.type, body);
+            case 161:
+                return createMethod(declaration.decorators, declaration.modifiers, declaration.asteriskToken, declaration.name, declaration.questionToken, declaration.typeParameters, declaration.parameters, declaration.type, body);
+            case 163:
+                return createGetAccessor(declaration.decorators, declaration.modifiers, declaration.name, declaration.parameters, declaration.type, body);
+            case 164:
+                return createSetAccessor(declaration.decorators, declaration.modifiers, declaration.name, declaration.parameters, body);
+            case 162:
+                return createConstructor(declaration.decorators, declaration.modifiers, declaration.parameters, body);
+            case 201:
+                return createFunctionExpression(declaration.modifiers, declaration.asteriskToken, declaration.name, declaration.typeParameters, declaration.parameters, declaration.type, body);
+            case 202:
+                return createArrowFunction(declaration.modifiers, declaration.typeParameters, declaration.parameters, declaration.type, declaration.equalsGreaterThanToken, body);
+        }
+    }
+    ts.updateFunctionLikeBody = updateFunctionLikeBody;
+    function createClassDeclaration(decorators, modifiers, name, typeParameters, heritageClauses, members) {
+        var node = createSynthesizedNode(245);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.name = asName(name);
+        node.typeParameters = asNodeArray(typeParameters);
+        node.heritageClauses = asNodeArray(heritageClauses);
+        node.members = createNodeArray(members);
+        return node;
+    }
+    ts.createClassDeclaration = createClassDeclaration;
+    function updateClassDeclaration(node, decorators, modifiers, name, typeParameters, heritageClauses, members) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.name !== name
+            || node.typeParameters !== typeParameters
+            || node.heritageClauses !== heritageClauses
+            || node.members !== members
+            ? updateNode(createClassDeclaration(decorators, modifiers, name, typeParameters, heritageClauses, members), node)
+            : node;
+    }
+    ts.updateClassDeclaration = updateClassDeclaration;
+    function createInterfaceDeclaration(decorators, modifiers, name, typeParameters, heritageClauses, members) {
+        var node = createSynthesizedNode(246);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.name = asName(name);
+        node.typeParameters = asNodeArray(typeParameters);
+        node.heritageClauses = asNodeArray(heritageClauses);
+        node.members = createNodeArray(members);
+        return node;
+    }
+    ts.createInterfaceDeclaration = createInterfaceDeclaration;
+    function updateInterfaceDeclaration(node, decorators, modifiers, name, typeParameters, heritageClauses, members) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.name !== name
+            || node.typeParameters !== typeParameters
+            || node.heritageClauses !== heritageClauses
+            || node.members !== members
+            ? updateNode(createInterfaceDeclaration(decorators, modifiers, name, typeParameters, heritageClauses, members), node)
+            : node;
+    }
+    ts.updateInterfaceDeclaration = updateInterfaceDeclaration;
+    function createTypeAliasDeclaration(decorators, modifiers, name, typeParameters, type) {
+        var node = createSynthesizedNode(247);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.name = asName(name);
+        node.typeParameters = asNodeArray(typeParameters);
+        node.type = type;
+        return node;
+    }
+    ts.createTypeAliasDeclaration = createTypeAliasDeclaration;
+    function updateTypeAliasDeclaration(node, decorators, modifiers, name, typeParameters, type) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.name !== name
+            || node.typeParameters !== typeParameters
+            || node.type !== type
+            ? updateNode(createTypeAliasDeclaration(decorators, modifiers, name, typeParameters, type), node)
+            : node;
+    }
+    ts.updateTypeAliasDeclaration = updateTypeAliasDeclaration;
+    function createEnumDeclaration(decorators, modifiers, name, members) {
+        var node = createSynthesizedNode(248);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.name = asName(name);
+        node.members = createNodeArray(members);
+        return node;
+    }
+    ts.createEnumDeclaration = createEnumDeclaration;
+    function updateEnumDeclaration(node, decorators, modifiers, name, members) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.name !== name
+            || node.members !== members
+            ? updateNode(createEnumDeclaration(decorators, modifiers, name, members), node)
+            : node;
+    }
+    ts.updateEnumDeclaration = updateEnumDeclaration;
+    function createModuleDeclaration(decorators, modifiers, name, body, flags) {
+        if (flags === void 0) { flags = 0; }
+        var node = createSynthesizedNode(249);
+        node.flags |= flags & (16 | 4 | 1024);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.name = name;
+        node.body = body;
+        return node;
+    }
+    ts.createModuleDeclaration = createModuleDeclaration;
+    function updateModuleDeclaration(node, decorators, modifiers, name, body) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.name !== name
+            || node.body !== body
+            ? updateNode(createModuleDeclaration(decorators, modifiers, name, body, node.flags), node)
+            : node;
+    }
+    ts.updateModuleDeclaration = updateModuleDeclaration;
+    function createModuleBlock(statements) {
+        var node = createSynthesizedNode(250);
+        node.statements = createNodeArray(statements);
+        return node;
+    }
+    ts.createModuleBlock = createModuleBlock;
+    function updateModuleBlock(node, statements) {
+        return node.statements !== statements
+            ? updateNode(createModuleBlock(statements), node)
+            : node;
+    }
+    ts.updateModuleBlock = updateModuleBlock;
+    function createCaseBlock(clauses) {
+        var node = createSynthesizedNode(251);
+        node.clauses = createNodeArray(clauses);
+        return node;
+    }
+    ts.createCaseBlock = createCaseBlock;
+    function updateCaseBlock(node, clauses) {
+        return node.clauses !== clauses
+            ? updateNode(createCaseBlock(clauses), node)
+            : node;
+    }
+    ts.updateCaseBlock = updateCaseBlock;
+    function createNamespaceExportDeclaration(name) {
+        var node = createSynthesizedNode(252);
+        node.name = asName(name);
+        return node;
+    }
+    ts.createNamespaceExportDeclaration = createNamespaceExportDeclaration;
+    function updateNamespaceExportDeclaration(node, name) {
+        return node.name !== name
+            ? updateNode(createNamespaceExportDeclaration(name), node)
+            : node;
+    }
+    ts.updateNamespaceExportDeclaration = updateNamespaceExportDeclaration;
+    function createImportEqualsDeclaration(decorators, modifiers, name, moduleReference) {
+        var node = createSynthesizedNode(253);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.name = asName(name);
+        node.moduleReference = moduleReference;
+        return node;
+    }
+    ts.createImportEqualsDeclaration = createImportEqualsDeclaration;
+    function updateImportEqualsDeclaration(node, decorators, modifiers, name, moduleReference) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.name !== name
+            || node.moduleReference !== moduleReference
+            ? updateNode(createImportEqualsDeclaration(decorators, modifiers, name, moduleReference), node)
+            : node;
+    }
+    ts.updateImportEqualsDeclaration = updateImportEqualsDeclaration;
+    function createImportDeclaration(decorators, modifiers, importClause, moduleSpecifier) {
+        var node = createSynthesizedNode(254);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.importClause = importClause;
+        node.moduleSpecifier = moduleSpecifier;
+        return node;
+    }
+    ts.createImportDeclaration = createImportDeclaration;
+    function updateImportDeclaration(node, decorators, modifiers, importClause, moduleSpecifier) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.importClause !== importClause
+            || node.moduleSpecifier !== moduleSpecifier
+            ? updateNode(createImportDeclaration(decorators, modifiers, importClause, moduleSpecifier), node)
+            : node;
+    }
+    ts.updateImportDeclaration = updateImportDeclaration;
+    function createImportClause(name, namedBindings, isTypeOnly) {
+        if (isTypeOnly === void 0) { isTypeOnly = false; }
+        var node = createSynthesizedNode(255);
+        node.name = name;
+        node.namedBindings = namedBindings;
+        node.isTypeOnly = isTypeOnly;
+        return node;
+    }
+    ts.createImportClause = createImportClause;
+    function updateImportClause(node, name, namedBindings, isTypeOnly) {
+        return node.name !== name
+            || node.namedBindings !== namedBindings
+            || node.isTypeOnly !== isTypeOnly
+            ? updateNode(createImportClause(name, namedBindings, isTypeOnly), node)
+            : node;
+    }
+    ts.updateImportClause = updateImportClause;
+    function createNamespaceImport(name) {
+        var node = createSynthesizedNode(256);
+        node.name = name;
+        return node;
+    }
+    ts.createNamespaceImport = createNamespaceImport;
+    function createNamespaceExport(name) {
+        var node = createSynthesizedNode(262);
+        node.name = name;
+        return node;
+    }
+    ts.createNamespaceExport = createNamespaceExport;
+    function updateNamespaceImport(node, name) {
+        return node.name !== name
+            ? updateNode(createNamespaceImport(name), node)
+            : node;
+    }
+    ts.updateNamespaceImport = updateNamespaceImport;
+    function updateNamespaceExport(node, name) {
+        return node.name !== name
+            ? updateNode(createNamespaceExport(name), node)
+            : node;
+    }
+    ts.updateNamespaceExport = updateNamespaceExport;
+    function createNamedImports(elements) {
+        var node = createSynthesizedNode(257);
+        node.elements = createNodeArray(elements);
+        return node;
+    }
+    ts.createNamedImports = createNamedImports;
+    function updateNamedImports(node, elements) {
+        return node.elements !== elements
+            ? updateNode(createNamedImports(elements), node)
+            : node;
+    }
+    ts.updateNamedImports = updateNamedImports;
+    function createImportSpecifier(propertyName, name) {
+        var node = createSynthesizedNode(258);
+        node.propertyName = propertyName;
+        node.name = name;
+        return node;
+    }
+    ts.createImportSpecifier = createImportSpecifier;
+    function updateImportSpecifier(node, propertyName, name) {
+        return node.propertyName !== propertyName
+            || node.name !== name
+            ? updateNode(createImportSpecifier(propertyName, name), node)
+            : node;
+    }
+    ts.updateImportSpecifier = updateImportSpecifier;
+    function createExportAssignment(decorators, modifiers, isExportEquals, expression) {
+        var node = createSynthesizedNode(259);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.isExportEquals = isExportEquals;
+        node.expression = isExportEquals ? ts.parenthesizeBinaryOperand(62, expression, false, undefined) : ts.parenthesizeDefaultExpression(expression);
+        return node;
+    }
+    ts.createExportAssignment = createExportAssignment;
+    function updateExportAssignment(node, decorators, modifiers, expression) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.expression !== expression
+            ? updateNode(createExportAssignment(decorators, modifiers, node.isExportEquals, expression), node)
+            : node;
+    }
+    ts.updateExportAssignment = updateExportAssignment;
+    function createExportDeclaration(decorators, modifiers, exportClause, moduleSpecifier, isTypeOnly) {
+        if (isTypeOnly === void 0) { isTypeOnly = false; }
+        var node = createSynthesizedNode(260);
+        node.decorators = asNodeArray(decorators);
+        node.modifiers = asNodeArray(modifiers);
+        node.isTypeOnly = isTypeOnly;
+        node.exportClause = exportClause;
+        node.moduleSpecifier = moduleSpecifier;
+        return node;
+    }
+    ts.createExportDeclaration = createExportDeclaration;
+    function updateExportDeclaration(node, decorators, modifiers, exportClause, moduleSpecifier, isTypeOnly) {
+        return node.decorators !== decorators
+            || node.modifiers !== modifiers
+            || node.isTypeOnly !== isTypeOnly
+            || node.exportClause !== exportClause
+            || node.moduleSpecifier !== moduleSpecifier
+            ? updateNode(createExportDeclaration(decorators, modifiers, exportClause, moduleSpecifier, isTypeOnly), node)
+            : node;
+    }
+    ts.updateExportDeclaration = updateExportDeclaration;
+    function createEmptyExports() {
+        return createExportDeclaration(undefined, undefined, createNamedExports([]), undefined);
+    }
+    ts.createEmptyExports = createEmptyExports;
+    function createNamedExports(elements) {
+        var node = createSynthesizedNode(261);
+        node.elements = createNodeArray(elements);
+        return node;
+    }
+    ts.createNamedExports = createNamedExports;
+    function updateNamedExports(node, elements) {
+        return node.elements !== elements
+            ? updateNode(createNamedExports(elements), node)
+            : node;
+    }
+    ts.updateNamedExports = updateNamedExports;
+    function createExportSpecifier(propertyName, name) {
+        var node = createSynthesizedNode(263);
+        node.propertyName = asName(propertyName);
+        node.name = asName(name);
+        return node;
+    }
+    ts.createExportSpecifier = createExportSpecifier;
+    function updateExportSpecifier(node, propertyName, name) {
+        return node.propertyName !== propertyName
+            || node.name !== name
+            ? updateNode(createExportSpecifier(propertyName, name), node)
+            : node;
+    }
+    ts.updateExportSpecifier = updateExportSpecifier;
+    function createExternalModuleReference(expression) {
+        var node = createSynthesizedNode(265);
+        node.expression = expression;
+        return node;
+    }
+    ts.createExternalModuleReference = createExternalModuleReference;
+    function updateExternalModuleReference(node, expression) {
+        return node.expression !== expression
+            ? updateNode(createExternalModuleReference(expression), node)
+            : node;
+    }
+    ts.updateExternalModuleReference = updateExternalModuleReference;
+    function createJSDocTypeExpression(type) {
+        var node = createSynthesizedNode(294);
+        node.type = type;
+        return node;
+    }
+    ts.createJSDocTypeExpression = createJSDocTypeExpression;
+    function createJSDocTypeTag(typeExpression, comment) {
+        var tag = createJSDocTag(320, "type");
+        tag.typeExpression = typeExpression;
+        tag.comment = comment;
+        return tag;
+    }
+    ts.createJSDocTypeTag = createJSDocTypeTag;
+    function createJSDocReturnTag(typeExpression, comment) {
+        var tag = createJSDocTag(318, "returns");
+        tag.typeExpression = typeExpression;
+        tag.comment = comment;
+        return tag;
+    }
+    ts.createJSDocReturnTag = createJSDocReturnTag;
+    function createJSDocThisTag(typeExpression) {
+        var tag = createJSDocTag(319, "this");
+        tag.typeExpression = typeExpression;
+        return tag;
+    }
+    ts.createJSDocThisTag = createJSDocThisTag;
+    function createJSDocParamTag(name, isBracketed, typeExpression, comment) {
+        var tag = createJSDocTag(317, "param");
+        tag.typeExpression = typeExpression;
+        tag.name = name;
+        tag.isBracketed = isBracketed;
+        tag.comment = comment;
+        return tag;
+    }
+    ts.createJSDocParamTag = createJSDocParamTag;
+    function createJSDocClassTag() {
+        return createJSDocTag(310, "class");
+    }
+    ts.createJSDocClassTag = createJSDocClassTag;
+    function createJSDocComment(comment, tags) {
+        var node = createSynthesizedNode(303);
+        node.comment = comment;
+        node.tags = tags;
+        return node;
+    }
+    ts.createJSDocComment = createJSDocComment;
+    function createJSDocTag(kind, tagName) {
+        var node = createSynthesizedNode(kind);
+        node.tagName = createIdentifier(tagName);
+        return node;
+    }
+    function createJsxElement(openingElement, children, closingElement) {
+        var node = createSynthesizedNode(266);
+        node.openingElement = openingElement;
+        node.children = createNodeArray(children);
+        node.closingElement = closingElement;
+        return node;
+    }
+    ts.createJsxElement = createJsxElement;
+    function updateJsxElement(node, openingElement, children, closingElement) {
+        return node.openingElement !== openingElement
+            || node.children !== children
+            || node.closingElement !== closingElement
+            ? updateNode(createJsxElement(openingElement, children, closingElement), node)
+            : node;
+    }
+    ts.updateJsxElement = updateJsxElement;
+    function createJsxSelfClosingElement(tagName, typeArguments, attributes) {
+        var node = createSynthesizedNode(267);
+        node.tagName = tagName;
+        node.typeArguments = asNodeArray(typeArguments);
+        node.attributes = attributes;
+        return node;
+    }
+    ts.createJsxSelfClosingElement = createJsxSelfClosingElement;
+    function updateJsxSelfClosingElement(node, tagName, typeArguments, attributes) {
+        return node.tagName !== tagName
+            || node.typeArguments !== typeArguments
+            || node.attributes !== attributes
+            ? updateNode(createJsxSelfClosingElement(tagName, typeArguments, attributes), node)
+            : node;
+    }
+    ts.updateJsxSelfClosingElement = updateJsxSelfClosingElement;
+    function createJsxOpeningElement(tagName, typeArguments, attributes) {
+        var node = createSynthesizedNode(268);
+        node.tagName = tagName;
+        node.typeArguments = asNodeArray(typeArguments);
+        node.attributes = attributes;
+        return node;
+    }
+    ts.createJsxOpeningElement = createJsxOpeningElement;
+    function updateJsxOpeningElement(node, tagName, typeArguments, attributes) {
+        return node.tagName !== tagName
+            || node.typeArguments !== typeArguments
+            || node.attributes !== attributes
+            ? updateNode(createJsxOpeningElement(tagName, typeArguments, attributes), node)
+            : node;
+    }
+    ts.updateJsxOpeningElement = updateJsxOpeningElement;
+    function createJsxClosingElement(tagName) {
+        var node = createSynthesizedNode(269);
+        node.tagName = tagName;
+        return node;
+    }
+    ts.createJsxClosingElement = createJsxClosingElement;
+    function updateJsxClosingElement(node, tagName) {
+        return node.tagName !== tagName
+            ? updateNode(createJsxClosingElement(tagName), node)
+            : node;
+    }
+    ts.updateJsxClosingElement = updateJsxClosingElement;
+    function createJsxFragment(openingFragment, children, closingFragment) {
+        var node = createSynthesizedNode(270);
+        node.openingFragment = openingFragment;
+        node.children = createNodeArray(children);
+        node.closingFragment = closingFragment;
+        return node;
+    }
+    ts.createJsxFragment = createJsxFragment;
+    function createJsxText(text, containsOnlyTriviaWhiteSpaces) {
+        var node = createSynthesizedNode(11);
+        node.text = text;
+        node.containsOnlyTriviaWhiteSpaces = !!containsOnlyTriviaWhiteSpaces;
+        return node;
+    }
+    ts.createJsxText = createJsxText;
+    function updateJsxText(node, text, containsOnlyTriviaWhiteSpaces) {
+        return node.text !== text
+            || node.containsOnlyTriviaWhiteSpaces !== containsOnlyTriviaWhiteSpaces
+            ? updateNode(createJsxText(text, containsOnlyTriviaWhiteSpaces), node)
+            : node;
+    }
+    ts.updateJsxText = updateJsxText;
+    function createJsxOpeningFragment() {
+        return createSynthesizedNode(271);
+    }
+    ts.createJsxOpeningFragment = createJsxOpeningFragment;
+    function createJsxJsxClosingFragment() {
+        return createSynthesizedNode(272);
+    }
+    ts.createJsxJsxClosingFragment = createJsxJsxClosingFragment;
+    function updateJsxFragment(node, openingFragment, children, closingFragment) {
+        return node.openingFragment !== openingFragment
+            || node.children !== children
+            || node.closingFragment !== closingFragment
+            ? updateNode(createJsxFragment(openingFragment, children, closingFragment), node)
+            : node;
+    }
+    ts.updateJsxFragment = updateJsxFragment;
+    function createJsxAttribute(name, initializer) {
+        var node = createSynthesizedNode(273);
+        node.name = name;
+        node.initializer = initializer;
+        return node;
+    }
+    ts.createJsxAttribute = createJsxAttribute;
+    function updateJsxAttribute(node, name, initializer) {
+        return node.name !== name
+            || node.initializer !== initializer
+            ? updateNode(createJsxAttribute(name, initializer), node)
+            : node;
+    }
+    ts.updateJsxAttribute = updateJsxAttribute;
+    function createJsxAttributes(properties) {
+        var node = createSynthesizedNode(274);
+        node.properties = createNodeArray(properties);
+        return node;
+    }
+    ts.createJsxAttributes = createJsxAttributes;
+    function updateJsxAttributes(node, properties) {
+        return node.properties !== properties
+            ? updateNode(createJsxAttributes(properties), node)
+            : node;
+    }
+    ts.updateJsxAttributes = updateJsxAttributes;
+    function createJsxSpreadAttribute(expression) {
+        var node = createSynthesizedNode(275);
+        node.expression = expression;
+        return node;
+    }
+    ts.createJsxSpreadAttribute = createJsxSpreadAttribute;
+    function updateJsxSpreadAttribute(node, expression) {
+        return node.expression !== expression
+            ? updateNode(createJsxSpreadAttribute(expression), node)
+            : node;
+    }
+    ts.updateJsxSpreadAttribute = updateJsxSpreadAttribute;
+    function createJsxExpression(dotDotDotToken, expression) {
+        var node = createSynthesizedNode(276);
+        node.dotDotDotToken = dotDotDotToken;
+        node.expression = expression;
+        return node;
+    }
+    ts.createJsxExpression = createJsxExpression;
+    function updateJsxExpression(node, expression) {
+        return node.expression !== expression
+            ? updateNode(createJsxExpression(node.dotDotDotToken, expression), node)
+            : node;
+    }
+    ts.updateJsxExpression = updateJsxExpression;
+    function createCaseClause(expression, statements) {
+        var node = createSynthesizedNode(277);
+        node.expression = ts.parenthesizeExpressionForList(expression);
+        node.statements = createNodeArray(statements);
+        return node;
+    }
+    ts.createCaseClause = createCaseClause;
+    function updateCaseClause(node, expression, statements) {
+        return node.expression !== expression
+            || node.statements !== statements
+            ? updateNode(createCaseClause(expression, statements), node)
+            : node;
+    }
+    ts.updateCaseClause = updateCaseClause;
+    function createDefaultClause(statements) {
+        var node = createSynthesizedNode(278);
+        node.statements = createNodeArray(statements);
+        return node;
+    }
+    ts.createDefaultClause = createDefaultClause;
+    function updateDefaultClause(node, statements) {
+        return node.statements !== statements
+            ? updateNode(createDefaultClause(statements), node)
+            : node;
+    }
+    ts.updateDefaultClause = updateDefaultClause;
+    function createHeritageClause(token, types) {
+        var node = createSynthesizedNode(279);
+        node.token = token;
+        node.types = createNodeArray(types);
+        return node;
+    }
+    ts.createHeritageClause = createHeritageClause;
+    function updateHeritageClause(node, types) {
+        return node.types !== types
+            ? updateNode(createHeritageClause(node.token, types), node)
+            : node;
+    }
+    ts.updateHeritageClause = updateHeritageClause;
+    function createCatchClause(variableDeclaration, block) {
+        var node = createSynthesizedNode(280);
+        node.variableDeclaration = ts.isString(variableDeclaration) ? createVariableDeclaration(variableDeclaration) : variableDeclaration;
+        node.block = block;
+        return node;
+    }
+    ts.createCatchClause = createCatchClause;
+    function updateCatchClause(node, variableDeclaration, block) {
+        return node.variableDeclaration !== variableDeclaration
+            || node.block !== block
+            ? updateNode(createCatchClause(variableDeclaration, block), node)
+            : node;
+    }
+    ts.updateCatchClause = updateCatchClause;
+    function createPropertyAssignment(name, initializer) {
+        var node = createSynthesizedNode(281);
+        node.name = asName(name);
+        node.questionToken = undefined;
+        node.initializer = ts.parenthesizeExpressionForList(initializer);
+        return node;
+    }
+    ts.createPropertyAssignment = createPropertyAssignment;
+    function updatePropertyAssignment(node, name, initializer) {
+        return node.name !== name
+            || node.initializer !== initializer
+            ? updateNode(createPropertyAssignment(name, initializer), node)
+            : node;
+    }
+    ts.updatePropertyAssignment = updatePropertyAssignment;
+    function createShorthandPropertyAssignment(name, objectAssignmentInitializer) {
+        var node = createSynthesizedNode(282);
+        node.name = asName(name);
+        node.objectAssignmentInitializer = objectAssignmentInitializer !== undefined ? ts.parenthesizeExpressionForList(objectAssignmentInitializer) : undefined;
+        return node;
+    }
+    ts.createShorthandPropertyAssignment = createShorthandPropertyAssignment;
+    function updateShorthandPropertyAssignment(node, name, objectAssignmentInitializer) {
+        return node.name !== name
+            || node.objectAssignmentInitializer !== objectAssignmentInitializer
+            ? updateNode(createShorthandPropertyAssignment(name, objectAssignmentInitializer), node)
+            : node;
+    }
+    ts.updateShorthandPropertyAssignment = updateShorthandPropertyAssignment;
+    function createSpreadAssignment(expression) {
+        var node = createSynthesizedNode(283);
+        node.expression = ts.parenthesizeExpressionForList(expression);
+        return node;
+    }
+    ts.createSpreadAssignment = createSpreadAssignment;
+    function updateSpreadAssignment(node, expression) {
+        return node.expression !== expression
+            ? updateNode(createSpreadAssignment(expression), node)
+            : node;
+    }
+    ts.updateSpreadAssignment = updateSpreadAssignment;
+    function createEnumMember(name, initializer) {
+        var node = createSynthesizedNode(284);
+        node.name = asName(name);
+        node.initializer = initializer && ts.parenthesizeExpressionForList(initializer);
+        return node;
+    }
+    ts.createEnumMember = createEnumMember;
+    function updateEnumMember(node, name, initializer) {
+        return node.name !== name
+            || node.initializer !== initializer
+            ? updateNode(createEnumMember(name, initializer), node)
+            : node;
+    }
+    ts.updateEnumMember = updateEnumMember;
+    function updateSourceFileNode(node, statements, isDeclarationFile, referencedFiles, typeReferences, hasNoDefaultLib, libReferences) {
+        if (node.statements !== statements ||
+            (isDeclarationFile !== undefined && node.isDeclarationFile !== isDeclarationFile) ||
+            (referencedFiles !== undefined && node.referencedFiles !== referencedFiles) ||
+            (typeReferences !== undefined && node.typeReferenceDirectives !== typeReferences) ||
+            (libReferences !== undefined && node.libReferenceDirectives !== libReferences) ||
+            (hasNoDefaultLib !== undefined && node.hasNoDefaultLib !== hasNoDefaultLib)) {
+            var updated = createSynthesizedNode(290);
+            updated.flags |= node.flags;
+            updated.statements = createNodeArray(statements);
+            updated.endOfFileToken = node.endOfFileToken;
+            updated.fileName = node.fileName;
+            updated.path = node.path;
+            updated.text = node.text;
+            updated.isDeclarationFile = isDeclarationFile === undefined ? node.isDeclarationFile : isDeclarationFile;
+            updated.referencedFiles = referencedFiles === undefined ? node.referencedFiles : referencedFiles;
+            updated.typeReferenceDirectives = typeReferences === undefined ? node.typeReferenceDirectives : typeReferences;
+            updated.hasNoDefaultLib = hasNoDefaultLib === undefined ? node.hasNoDefaultLib : hasNoDefaultLib;
+            updated.libReferenceDirectives = libReferences === undefined ? node.libReferenceDirectives : libReferences;
+            if (node.amdDependencies !== undefined)
+                updated.amdDependencies = node.amdDependencies;
+            if (node.moduleName !== undefined)
+                updated.moduleName = node.moduleName;
+            if (node.languageVariant !== undefined)
+                updated.languageVariant = node.languageVariant;
+            if (node.renamedDependencies !== undefined)
+                updated.renamedDependencies = node.renamedDependencies;
+            if (node.languageVersion !== undefined)
+                updated.languageVersion = node.languageVersion;
+            if (node.scriptKind !== undefined)
+                updated.scriptKind = node.scriptKind;
+            if (node.externalModuleIndicator !== undefined)
+                updated.externalModuleIndicator = node.externalModuleIndicator;
+            if (node.commonJsModuleIndicator !== undefined)
+                updated.commonJsModuleIndicator = node.commonJsModuleIndicator;
+            if (node.identifiers !== undefined)
+                updated.identifiers = node.identifiers;
+            if (node.nodeCount !== undefined)
+                updated.nodeCount = node.nodeCount;
+            if (node.identifierCount !== undefined)
+                updated.identifierCount = node.identifierCount;
+            if (node.symbolCount !== undefined)
+                updated.symbolCount = node.symbolCount;
+            if (node.parseDiagnostics !== undefined)
+                updated.parseDiagnostics = node.parseDiagnostics;
+            if (node.bindDiagnostics !== undefined)
+                updated.bindDiagnostics = node.bindDiagnostics;
+            if (node.bindSuggestionDiagnostics !== undefined)
+                updated.bindSuggestionDiagnostics = node.bindSuggestionDiagnostics;
+            if (node.lineMap !== undefined)
+                updated.lineMap = node.lineMap;
+            if (node.classifiableNames !== undefined)
+                updated.classifiableNames = node.classifiableNames;
+            if (node.resolvedModules !== undefined)
+                updated.resolvedModules = node.resolvedModules;
+            if (node.resolvedTypeReferenceDirectiveNames !== undefined)
+                updated.resolvedTypeReferenceDirectiveNames = node.resolvedTypeReferenceDirectiveNames;
+            if (node.imports !== undefined)
+                updated.imports = node.imports;
+            if (node.moduleAugmentations !== undefined)
+                updated.moduleAugmentations = node.moduleAugmentations;
+            if (node.pragmas !== undefined)
+                updated.pragmas = node.pragmas;
+            if (node.localJsxFactory !== undefined)
+                updated.localJsxFactory = node.localJsxFactory;
+            if (node.localJsxNamespace !== undefined)
+                updated.localJsxNamespace = node.localJsxNamespace;
+            return updateNode(updated, node);
+        }
+        return node;
+    }
+    ts.updateSourceFileNode = updateSourceFileNode;
+    function getMutableClone(node) {
+        var clone = getSynthesizedClone(node);
+        clone.pos = node.pos;
+        clone.end = node.end;
+        clone.parent = node.parent;
+        return clone;
+    }
+    ts.getMutableClone = getMutableClone;
+    function createNotEmittedStatement(original) {
+        var node = createSynthesizedNode(325);
+        node.original = original;
+        setTextRange(node, original);
+        return node;
+    }
+    ts.createNotEmittedStatement = createNotEmittedStatement;
+    function createEndOfDeclarationMarker(original) {
+        var node = createSynthesizedNode(329);
+        node.emitNode = {};
+        node.original = original;
+        return node;
+    }
+    ts.createEndOfDeclarationMarker = createEndOfDeclarationMarker;
+    function createMergeDeclarationMarker(original) {
+        var node = createSynthesizedNode(328);
+        node.emitNode = {};
+        node.original = original;
+        return node;
+    }
+    ts.createMergeDeclarationMarker = createMergeDeclarationMarker;
+    function createPartiallyEmittedExpression(expression, original) {
+        var node = createSynthesizedNode(326);
+        node.expression = expression;
+        node.original = original;
+        setTextRange(node, original);
+        return node;
+    }
+    ts.createPartiallyEmittedExpression = createPartiallyEmittedExpression;
+    function updatePartiallyEmittedExpression(node, expression) {
+        if (node.expression !== expression) {
+            return updateNode(createPartiallyEmittedExpression(expression, node.original), node);
+        }
+        return node;
+    }
+    ts.updatePartiallyEmittedExpression = updatePartiallyEmittedExpression;
+    function flattenCommaElements(node) {
+        if (ts.nodeIsSynthesized(node) && !ts.isParseTreeNode(node) && !node.original && !node.emitNode && !node.id) {
+            if (node.kind === 327) {
+                return node.elements;
+            }
+            if (ts.isBinaryExpression(node) && node.operatorToken.kind === 27) {
+                return [node.left, node.right];
+            }
+        }
+        return node;
+    }
+    function createCommaList(elements) {
+        var node = createSynthesizedNode(327);
+        node.elements = createNodeArray(ts.sameFlatMap(elements, flattenCommaElements));
+        return node;
+    }
+    ts.createCommaList = createCommaList;
+    function updateCommaList(node, elements) {
+        return node.elements !== elements
+            ? updateNode(createCommaList(elements), node)
+            : node;
+    }
+    ts.updateCommaList = updateCommaList;
+    function createSyntheticReferenceExpression(expression, thisArg) {
+        var node = createSynthesizedNode(330);
+        node.expression = expression;
+        node.thisArg = thisArg;
+        return node;
+    }
+    ts.createSyntheticReferenceExpression = createSyntheticReferenceExpression;
+    function updateSyntheticReferenceExpression(node, expression, thisArg) {
+        return node.expression !== expression
+            || node.thisArg !== thisArg
+            ? updateNode(createSyntheticReferenceExpression(expression, thisArg), node)
+            : node;
+    }
+    ts.updateSyntheticReferenceExpression = updateSyntheticReferenceExpression;
+    function createBundle(sourceFiles, prepends) {
+        if (prepends === void 0) { prepends = ts.emptyArray; }
+        var node = ts.createNode(291);
+        node.prepends = prepends;
+        node.sourceFiles = sourceFiles;
+        return node;
+    }
+    ts.createBundle = createBundle;
+    var allUnscopedEmitHelpers;
+    function getAllUnscopedEmitHelpers() {
+        return allUnscopedEmitHelpers || (allUnscopedEmitHelpers = ts.arrayToMap([
+            ts.valuesHelper,
+            ts.readHelper,
+            ts.spreadHelper,
+            ts.spreadArraysHelper,
+            ts.restHelper,
+            ts.decorateHelper,
+            ts.metadataHelper,
+            ts.paramHelper,
+            ts.awaiterHelper,
+            ts.assignHelper,
+            ts.awaitHelper,
+            ts.asyncGeneratorHelper,
+            ts.asyncDelegator,
+            ts.asyncValues,
+            ts.extendsHelper,
+            ts.templateObjectHelper,
+            ts.generatorHelper,
+            ts.importStarHelper,
+            ts.importDefaultHelper,
+            ts.classPrivateFieldGetHelper,
+            ts.classPrivateFieldSetHelper,
+            ts.createBindingHelper,
+            ts.setModuleDefaultHelper
+        ], function (helper) { return helper.name; }));
+    }
+    function createUnparsedSource() {
+        var node = ts.createNode(292);
+        node.prologues = ts.emptyArray;
+        node.referencedFiles = ts.emptyArray;
+        node.libReferenceDirectives = ts.emptyArray;
+        node.getLineAndCharacterOfPosition = function (pos) { return ts.getLineAndCharacterOfPosition(node, pos); };
+        return node;
+    }
+    function createUnparsedSourceFile(textOrInputFiles, mapPathOrType, mapTextOrStripInternal) {
+        var node = createUnparsedSource();
+        var stripInternal;
+        var bundleFileInfo;
+        if (!ts.isString(textOrInputFiles)) {
+            ts.Debug.assert(mapPathOrType === "js" || mapPathOrType === "dts");
+            node.fileName = (mapPathOrType === "js" ? textOrInputFiles.javascriptPath : textOrInputFiles.declarationPath) || "";
+            node.sourceMapPath = mapPathOrType === "js" ? textOrInputFiles.javascriptMapPath : textOrInputFiles.declarationMapPath;
+            Object.defineProperties(node, {
+                text: { get: function () { return mapPathOrType === "js" ? textOrInputFiles.javascriptText : textOrInputFiles.declarationText; } },
+                sourceMapText: { get: function () { return mapPathOrType === "js" ? textOrInputFiles.javascriptMapText : textOrInputFiles.declarationMapText; } },
+            });
+            if (textOrInputFiles.buildInfo && textOrInputFiles.buildInfo.bundle) {
+                node.oldFileOfCurrentEmit = textOrInputFiles.oldFileOfCurrentEmit;
+                ts.Debug.assert(mapTextOrStripInternal === undefined || typeof mapTextOrStripInternal === "boolean");
+                stripInternal = mapTextOrStripInternal;
+                bundleFileInfo = mapPathOrType === "js" ? textOrInputFiles.buildInfo.bundle.js : textOrInputFiles.buildInfo.bundle.dts;
+                if (node.oldFileOfCurrentEmit) {
+                    parseOldFileOfCurrentEmit(node, ts.Debug.checkDefined(bundleFileInfo));
+                    return node;
+                }
+            }
+        }
+        else {
+            node.fileName = "";
+            node.text = textOrInputFiles;
+            node.sourceMapPath = mapPathOrType;
+            node.sourceMapText = mapTextOrStripInternal;
+        }
+        ts.Debug.assert(!node.oldFileOfCurrentEmit);
+        parseUnparsedSourceFile(node, bundleFileInfo, stripInternal);
+        return node;
+    }
+    ts.createUnparsedSourceFile = createUnparsedSourceFile;
+    function parseUnparsedSourceFile(node, bundleFileInfo, stripInternal) {
+        var prologues;
+        var helpers;
+        var referencedFiles;
+        var typeReferenceDirectives;
+        var libReferenceDirectives;
+        var texts;
+        for (var _i = 0, _a = bundleFileInfo ? bundleFileInfo.sections : ts.emptyArray; _i < _a.length; _i++) {
+            var section = _a[_i];
+            switch (section.kind) {
+                case "prologue":
+                    (prologues || (prologues = [])).push(createUnparsedNode(section, node));
+                    break;
+                case "emitHelpers":
+                    (helpers || (helpers = [])).push(getAllUnscopedEmitHelpers().get(section.data));
+                    break;
+                case "no-default-lib":
+                    node.hasNoDefaultLib = true;
+                    break;
+                case "reference":
+                    (referencedFiles || (referencedFiles = [])).push({ pos: -1, end: -1, fileName: section.data });
+                    break;
+                case "type":
+                    (typeReferenceDirectives || (typeReferenceDirectives = [])).push(section.data);
+                    break;
+                case "lib":
+                    (libReferenceDirectives || (libReferenceDirectives = [])).push({ pos: -1, end: -1, fileName: section.data });
+                    break;
+                case "prepend":
+                    var prependNode = createUnparsedNode(section, node);
+                    var prependTexts = void 0;
+                    for (var _b = 0, _c = section.texts; _b < _c.length; _b++) {
+                        var text = _c[_b];
+                        if (!stripInternal || text.kind !== "internal") {
+                            (prependTexts || (prependTexts = [])).push(createUnparsedNode(text, node));
+                        }
+                    }
+                    prependNode.texts = prependTexts || ts.emptyArray;
+                    (texts || (texts = [])).push(prependNode);
+                    break;
+                case "internal":
+                    if (stripInternal) {
+                        if (!texts)
+                            texts = [];
+                        break;
+                    }
+                case "text":
+                    (texts || (texts = [])).push(createUnparsedNode(section, node));
+                    break;
+                default:
+                    ts.Debug.assertNever(section);
+            }
+        }
+        node.prologues = prologues || ts.emptyArray;
+        node.helpers = helpers;
+        node.referencedFiles = referencedFiles || ts.emptyArray;
+        node.typeReferenceDirectives = typeReferenceDirectives;
+        node.libReferenceDirectives = libReferenceDirectives || ts.emptyArray;
+        node.texts = texts || [createUnparsedNode({ kind: "text", pos: 0, end: node.text.length }, node)];
+    }
+    function parseOldFileOfCurrentEmit(node, bundleFileInfo) {
+        ts.Debug.assert(!!node.oldFileOfCurrentEmit);
+        var texts;
+        var syntheticReferences;
+        for (var _i = 0, _a = bundleFileInfo.sections; _i < _a.length; _i++) {
+            var section = _a[_i];
+            switch (section.kind) {
+                case "internal":
+                case "text":
+                    (texts || (texts = [])).push(createUnparsedNode(section, node));
+                    break;
+                case "no-default-lib":
+                case "reference":
+                case "type":
+                case "lib":
+                    (syntheticReferences || (syntheticReferences = [])).push(createUnparsedSyntheticReference(section, node));
+                    break;
+                case "prologue":
+                case "emitHelpers":
+                case "prepend":
+                    break;
+                default:
+                    ts.Debug.assertNever(section);
+            }
+        }
+        node.texts = texts || ts.emptyArray;
+        node.helpers = ts.map(bundleFileInfo.sources && bundleFileInfo.sources.helpers, function (name) { return getAllUnscopedEmitHelpers().get(name); });
+        node.syntheticReferences = syntheticReferences;
+        return node;
+    }
+    function mapBundleFileSectionKindToSyntaxKind(kind) {
+        switch (kind) {
+            case "prologue": return 285;
+            case "prepend": return 286;
+            case "internal": return 288;
+            case "text": return 287;
+            case "emitHelpers":
+            case "no-default-lib":
+            case "reference":
+            case "type":
+            case "lib":
+                return ts.Debug.fail("BundleFileSectionKind: " + kind + " not yet mapped to SyntaxKind");
+            default:
+                return ts.Debug.assertNever(kind);
+        }
+    }
+    function createUnparsedNode(section, parent) {
+        var node = ts.createNode(mapBundleFileSectionKindToSyntaxKind(section.kind), section.pos, section.end);
+        node.parent = parent;
+        node.data = section.data;
+        return node;
+    }
+    function createUnparsedSyntheticReference(section, parent) {
+        var node = ts.createNode(289, section.pos, section.end);
+        node.parent = parent;
+        node.data = section.data;
+        node.section = section;
+        return node;
+    }
+    function createInputFiles(javascriptTextOrReadFileText, declarationTextOrJavascriptPath, javascriptMapPath, javascriptMapTextOrDeclarationPath, declarationMapPath, declarationMapTextOrBuildInfoPath, javascriptPath, declarationPath, buildInfoPath, buildInfo, oldFileOfCurrentEmit) {
+        var node = ts.createNode(293);
+        if (!ts.isString(javascriptTextOrReadFileText)) {
+            var cache_1 = ts.createMap();
+            var textGetter_1 = function (path) {
+                if (path === undefined)
+                    return undefined;
+                var value = cache_1.get(path);
+                if (value === undefined) {
+                    value = javascriptTextOrReadFileText(path);
+                    cache_1.set(path, value !== undefined ? value : false);
+                }
+                return value !== false ? value : undefined;
+            };
+            var definedTextGetter_1 = function (path) {
+                var result = textGetter_1(path);
+                return result !== undefined ? result : "/* Input file " + path + " was missing */\r\n";
+            };
+            var buildInfo_1;
+            var getAndCacheBuildInfo_1 = function (getText) {
+                if (buildInfo_1 === undefined) {
+                    var result = getText();
+                    buildInfo_1 = result !== undefined ? ts.getBuildInfo(result) : false;
+                }
+                return buildInfo_1 || undefined;
+            };
+            node.javascriptPath = declarationTextOrJavascriptPath;
+            node.javascriptMapPath = javascriptMapPath;
+            node.declarationPath = ts.Debug.checkDefined(javascriptMapTextOrDeclarationPath);
+            node.declarationMapPath = declarationMapPath;
+            node.buildInfoPath = declarationMapTextOrBuildInfoPath;
+            Object.defineProperties(node, {
+                javascriptText: { get: function () { return definedTextGetter_1(declarationTextOrJavascriptPath); } },
+                javascriptMapText: { get: function () { return textGetter_1(javascriptMapPath); } },
+                declarationText: { get: function () { return definedTextGetter_1(ts.Debug.checkDefined(javascriptMapTextOrDeclarationPath)); } },
+                declarationMapText: { get: function () { return textGetter_1(declarationMapPath); } },
+                buildInfo: { get: function () { return getAndCacheBuildInfo_1(function () { return textGetter_1(declarationMapTextOrBuildInfoPath); }); } }
+            });
+        }
+        else {
+            node.javascriptText = javascriptTextOrReadFileText;
+            node.javascriptMapPath = javascriptMapPath;
+            node.javascriptMapText = javascriptMapTextOrDeclarationPath;
+            node.declarationText = declarationTextOrJavascriptPath;
+            node.declarationMapPath = declarationMapPath;
+            node.declarationMapText = declarationMapTextOrBuildInfoPath;
+            node.javascriptPath = javascriptPath;
+            node.declarationPath = declarationPath;
+            node.buildInfoPath = buildInfoPath;
+            node.buildInfo = buildInfo;
+            node.oldFileOfCurrentEmit = oldFileOfCurrentEmit;
+        }
+        return node;
+    }
+    ts.createInputFiles = createInputFiles;
+    function updateBundle(node, sourceFiles, prepends) {
+        if (prepends === void 0) { prepends = ts.emptyArray; }
+        if (node.sourceFiles !== sourceFiles || node.prepends !== prepends) {
+            return createBundle(sourceFiles, prepends);
+        }
+        return node;
+    }
+    ts.updateBundle = updateBundle;
+    function createImmediatelyInvokedFunctionExpression(statements, param, paramValue) {
+        return createCall(createFunctionExpression(undefined, undefined, undefined, undefined, param ? [param] : [], undefined, createBlock(statements, true)), undefined, paramValue ? [paramValue] : []);
+    }
+    ts.createImmediatelyInvokedFunctionExpression = createImmediatelyInvokedFunctionExpression;
+    function createImmediatelyInvokedArrowFunction(statements, param, paramValue) {
+        return createCall(createArrowFunction(undefined, undefined, param ? [param] : [], undefined, undefined, createBlock(statements, true)), undefined, paramValue ? [paramValue] : []);
+    }
+    ts.createImmediatelyInvokedArrowFunction = createImmediatelyInvokedArrowFunction;
+    function createComma(left, right) {
+        return createBinary(left, 27, right);
+    }
+    ts.createComma = createComma;
+    function createLessThan(left, right) {
+        return createBinary(left, 29, right);
+    }
+    ts.createLessThan = createLessThan;
+    function createAssignment(left, right) {
+        return createBinary(left, 62, right);
+    }
+    ts.createAssignment = createAssignment;
+    function createStrictEquality(left, right) {
+        return createBinary(left, 36, right);
+    }
+    ts.createStrictEquality = createStrictEquality;
+    function createStrictInequality(left, right) {
+        return createBinary(left, 37, right);
+    }
+    ts.createStrictInequality = createStrictInequality;
+    function createAdd(left, right) {
+        return createBinary(left, 39, right);
+    }
+    ts.createAdd = createAdd;
+    function createSubtract(left, right) {
+        return createBinary(left, 40, right);
+    }
+    ts.createSubtract = createSubtract;
+    function createPostfixIncrement(operand) {
+        return createPostfix(operand, 45);
+    }
+    ts.createPostfixIncrement = createPostfixIncrement;
+    function createLogicalAnd(left, right) {
+        return createBinary(left, 55, right);
+    }
+    ts.createLogicalAnd = createLogicalAnd;
+    function createLogicalOr(left, right) {
+        return createBinary(left, 56, right);
+    }
+    ts.createLogicalOr = createLogicalOr;
+    function createNullishCoalesce(left, right) {
+        return createBinary(left, 60, right);
+    }
+    ts.createNullishCoalesce = createNullishCoalesce;
+    function createLogicalNot(operand) {
+        return createPrefix(53, operand);
+    }
+    ts.createLogicalNot = createLogicalNot;
+    function createVoidZero() {
+        return createVoid(createLiteral(0));
+    }
+    ts.createVoidZero = createVoidZero;
+    function createExportDefault(expression) {
+        return createExportAssignment(undefined, undefined, false, expression);
+    }
+    ts.createExportDefault = createExportDefault;
+    function createExternalModuleExport(exportName) {
+        return createExportDeclaration(undefined, undefined, createNamedExports([createExportSpecifier(undefined, exportName)]));
+    }
+    ts.createExternalModuleExport = createExternalModuleExport;
+    function asName(name) {
+        return ts.isString(name) ? createIdentifier(name) : name;
+    }
+    function asExpression(value) {
+        return typeof value === "string" ? createStringLiteral(value) :
+            typeof value === "number" ? createNumericLiteral("" + value) :
+                typeof value === "boolean" ? value ? createTrue() : createFalse() :
+                    value;
+    }
+    function asNodeArray(array) {
+        return array ? createNodeArray(array) : undefined;
+    }
+    function asToken(value) {
+        return typeof value === "number" ? createToken(value) : value;
+    }
+    function asEmbeddedStatement(statement) {
+        return statement && ts.isNotEmittedStatement(statement) ? setTextRange(setOriginalNode(createEmptyStatement(), statement), statement) : statement;
+    }
+    function disposeEmitNodes(sourceFile) {
+        sourceFile = ts.getSourceFileOfNode(ts.getParseTreeNode(sourceFile));
+        var emitNode = sourceFile && sourceFile.emitNode;
+        var annotatedNodes = emitNode && emitNode.annotatedNodes;
+        if (annotatedNodes) {
+            for (var _i = 0, annotatedNodes_1 = annotatedNodes; _i < annotatedNodes_1.length; _i++) {
+                var node = annotatedNodes_1[_i];
+                node.emitNode = undefined;
+            }
+        }
+    }
+    ts.disposeEmitNodes = disposeEmitNodes;
+    function getOrCreateEmitNode(node) {
+        if (!node.emitNode) {
+            if (ts.isParseTreeNode(node)) {
+                if (node.kind === 290) {
+                    return node.emitNode = { annotatedNodes: [node] };
+                }
+                var sourceFile = ts.getSourceFileOfNode(ts.getParseTreeNode(ts.getSourceFileOfNode(node)));
+                getOrCreateEmitNode(sourceFile).annotatedNodes.push(node);
+            }
+            node.emitNode = {};
+        }
+        return node.emitNode;
+    }
+    ts.getOrCreateEmitNode = getOrCreateEmitNode;
+    function removeAllComments(node) {
+        var emitNode = getOrCreateEmitNode(node);
+        emitNode.flags |= 1536;
+        emitNode.leadingComments = undefined;
+        emitNode.trailingComments = undefined;
+        return node;
+    }
+    ts.removeAllComments = removeAllComments;
+    function setTextRange(range, location) {
+        if (location) {
+            range.pos = location.pos;
+            range.end = location.end;
+        }
+        return range;
+    }
+    ts.setTextRange = setTextRange;
+    function setEmitFlags(node, emitFlags) {
+        getOrCreateEmitNode(node).flags = emitFlags;
+        return node;
+    }
+    ts.setEmitFlags = setEmitFlags;
+    function addEmitFlags(node, emitFlags) {
+        var emitNode = getOrCreateEmitNode(node);
+        emitNode.flags = emitNode.flags | emitFlags;
+        return node;
+    }
+    ts.addEmitFlags = addEmitFlags;
+    function getSourceMapRange(node) {
+        var emitNode = node.emitNode;
+        return (emitNode && emitNode.sourceMapRange) || node;
+    }
+    ts.getSourceMapRange = getSourceMapRange;
+    function setSourceMapRange(node, range) {
+        getOrCreateEmitNode(node).sourceMapRange = range;
+        return node;
+    }
+    ts.setSourceMapRange = setSourceMapRange;
+    var SourceMapSource;
+    function createSourceMapSource(fileName, text, skipTrivia) {
+        return new (SourceMapSource || (SourceMapSource = ts.objectAllocator.getSourceMapSourceConstructor()))(fileName, text, skipTrivia);
+    }
+    ts.createSourceMapSource = createSourceMapSource;
+    function getTokenSourceMapRange(node, token) {
+        var emitNode = node.emitNode;
+        var tokenSourceMapRanges = emitNode && emitNode.tokenSourceMapRanges;
+        return tokenSourceMapRanges && tokenSourceMapRanges[token];
+    }
+    ts.getTokenSourceMapRange = getTokenSourceMapRange;
+    function setTokenSourceMapRange(node, token, range) {
+        var emitNode = getOrCreateEmitNode(node);
+        var tokenSourceMapRanges = emitNode.tokenSourceMapRanges || (emitNode.tokenSourceMapRanges = []);
+        tokenSourceMapRanges[token] = range;
+        return node;
+    }
+    ts.setTokenSourceMapRange = setTokenSourceMapRange;
+    function getStartsOnNewLine(node) {
+        var emitNode = node.emitNode;
+        return emitNode && emitNode.startsOnNewLine;
+    }
+    ts.getStartsOnNewLine = getStartsOnNewLine;
+    function setStartsOnNewLine(node, newLine) {
+        getOrCreateEmitNode(node).startsOnNewLine = newLine;
+        return node;
+    }
+    ts.setStartsOnNewLine = setStartsOnNewLine;
+    function getCommentRange(node) {
+        var emitNode = node.emitNode;
+        return (emitNode && emitNode.commentRange) || node;
+    }
+    ts.getCommentRange = getCommentRange;
+    function setCommentRange(node, range) {
+        getOrCreateEmitNode(node).commentRange = range;
+        return node;
+    }
+    ts.setCommentRange = setCommentRange;
+    function getSyntheticLeadingComments(node) {
+        var emitNode = node.emitNode;
+        return emitNode && emitNode.leadingComments;
+    }
+    ts.getSyntheticLeadingComments = getSyntheticLeadingComments;
+    function setSyntheticLeadingComments(node, comments) {
+        getOrCreateEmitNode(node).leadingComments = comments;
+        return node;
+    }
+    ts.setSyntheticLeadingComments = setSyntheticLeadingComments;
+    function addSyntheticLeadingComment(node, kind, text, hasTrailingNewLine) {
+        return setSyntheticLeadingComments(node, ts.append(getSyntheticLeadingComments(node), { kind: kind, pos: -1, end: -1, hasTrailingNewLine: hasTrailingNewLine, text: text }));
+    }
+    ts.addSyntheticLeadingComment = addSyntheticLeadingComment;
+    function getSyntheticTrailingComments(node) {
+        var emitNode = node.emitNode;
+        return emitNode && emitNode.trailingComments;
+    }
+    ts.getSyntheticTrailingComments = getSyntheticTrailingComments;
+    function setSyntheticTrailingComments(node, comments) {
+        getOrCreateEmitNode(node).trailingComments = comments;
+        return node;
+    }
+    ts.setSyntheticTrailingComments = setSyntheticTrailingComments;
+    function addSyntheticTrailingComment(node, kind, text, hasTrailingNewLine) {
+        return setSyntheticTrailingComments(node, ts.append(getSyntheticTrailingComments(node), { kind: kind, pos: -1, end: -1, hasTrailingNewLine: hasTrailingNewLine, text: text }));
+    }
+    ts.addSyntheticTrailingComment = addSyntheticTrailingComment;
+    function moveSyntheticComments(node, original) {
+        setSyntheticLeadingComments(node, getSyntheticLeadingComments(original));
+        setSyntheticTrailingComments(node, getSyntheticTrailingComments(original));
+        var emit = getOrCreateEmitNode(original);
+        emit.leadingComments = undefined;
+        emit.trailingComments = undefined;
+        return node;
+    }
+    ts.moveSyntheticComments = moveSyntheticComments;
+    function ignoreSourceNewlines(node) {
+        getOrCreateEmitNode(node).flags |= 134217728;
+        return node;
+    }
+    ts.ignoreSourceNewlines = ignoreSourceNewlines;
+    function getConstantValue(node) {
+        var emitNode = node.emitNode;
+        return emitNode && emitNode.constantValue;
+    }
+    ts.getConstantValue = getConstantValue;
+    function setConstantValue(node, value) {
+        var emitNode = getOrCreateEmitNode(node);
+        emitNode.constantValue = value;
+        return node;
+    }
+    ts.setConstantValue = setConstantValue;
+    function addEmitHelper(node, helper) {
+        var emitNode = getOrCreateEmitNode(node);
+        emitNode.helpers = ts.append(emitNode.helpers, helper);
+        return node;
+    }
+    ts.addEmitHelper = addEmitHelper;
+    function addEmitHelpers(node, helpers) {
+        if (ts.some(helpers)) {
+            var emitNode = getOrCreateEmitNode(node);
+            for (var _i = 0, helpers_1 = helpers; _i < helpers_1.length; _i++) {
+                var helper = helpers_1[_i];
+                emitNode.helpers = ts.appendIfUnique(emitNode.helpers, helper);
+            }
+        }
+        return node;
+    }
+    ts.addEmitHelpers = addEmitHelpers;
+    function removeEmitHelper(node, helper) {
+        var emitNode = node.emitNode;
+        if (emitNode) {
+            var helpers = emitNode.helpers;
+            if (helpers) {
+                return ts.orderedRemoveItem(helpers, helper);
+            }
+        }
+        return false;
+    }
+    ts.removeEmitHelper = removeEmitHelper;
+    function getEmitHelpers(node) {
+        var emitNode = node.emitNode;
+        return emitNode && emitNode.helpers;
+    }
+    ts.getEmitHelpers = getEmitHelpers;
+    function moveEmitHelpers(source, target, predicate) {
+        var sourceEmitNode = source.emitNode;
+        var sourceEmitHelpers = sourceEmitNode && sourceEmitNode.helpers;
+        if (!ts.some(sourceEmitHelpers))
+            return;
+        var targetEmitNode = getOrCreateEmitNode(target);
+        var helpersRemoved = 0;
+        for (var i = 0; i < sourceEmitHelpers.length; i++) {
+            var helper = sourceEmitHelpers[i];
+            if (predicate(helper)) {
+                helpersRemoved++;
+                targetEmitNode.helpers = ts.appendIfUnique(targetEmitNode.helpers, helper);
+            }
+            else if (helpersRemoved > 0) {
+                sourceEmitHelpers[i - helpersRemoved] = helper;
+            }
+        }
+        if (helpersRemoved > 0) {
+            sourceEmitHelpers.length -= helpersRemoved;
+        }
+    }
+    ts.moveEmitHelpers = moveEmitHelpers;
+    function compareEmitHelpers(x, y) {
+        if (x === y)
+            return 0;
+        if (x.priority === y.priority)
+            return 0;
+        if (x.priority === undefined)
+            return 1;
+        if (y.priority === undefined)
+            return -1;
+        return ts.compareValues(x.priority, y.priority);
+    }
+    ts.compareEmitHelpers = compareEmitHelpers;
+    function setOriginalNode(node, original) {
+        node.original = original;
+        if (original) {
+            var emitNode = original.emitNode;
+            if (emitNode)
+                node.emitNode = mergeEmitNode(emitNode, node.emitNode);
+        }
+        return node;
+    }
+    ts.setOriginalNode = setOriginalNode;
+    function mergeEmitNode(sourceEmitNode, destEmitNode) {
+        var flags = sourceEmitNode.flags, leadingComments = sourceEmitNode.leadingComments, trailingComments = sourceEmitNode.trailingComments, commentRange = sourceEmitNode.commentRange, sourceMapRange = sourceEmitNode.sourceMapRange, tokenSourceMapRanges = sourceEmitNode.tokenSourceMapRanges, constantValue = sourceEmitNode.constantValue, helpers = sourceEmitNode.helpers, startsOnNewLine = sourceEmitNode.startsOnNewLine;
+        if (!destEmitNode)
+            destEmitNode = {};
+        if (leadingComments)
+            destEmitNode.leadingComments = ts.addRange(leadingComments.slice(), destEmitNode.leadingComments);
+        if (trailingComments)
+            destEmitNode.trailingComments = ts.addRange(trailingComments.slice(), destEmitNode.trailingComments);
+        if (flags)
+            destEmitNode.flags = flags;
+        if (commentRange)
+            destEmitNode.commentRange = commentRange;
+        if (sourceMapRange)
+            destEmitNode.sourceMapRange = sourceMapRange;
+        if (tokenSourceMapRanges)
+            destEmitNode.tokenSourceMapRanges = mergeTokenSourceMapRanges(tokenSourceMapRanges, destEmitNode.tokenSourceMapRanges);
+        if (constantValue !== undefined)
+            destEmitNode.constantValue = constantValue;
+        if (helpers)
+            destEmitNode.helpers = ts.addRange(destEmitNode.helpers, helpers);
+        if (startsOnNewLine !== undefined)
+            destEmitNode.startsOnNewLine = startsOnNewLine;
+        return destEmitNode;
+    }
+    function mergeTokenSourceMapRanges(sourceRanges, destRanges) {
+        if (!destRanges)
+            destRanges = [];
+        for (var key in sourceRanges) {
+            destRanges[key] = sourceRanges[key];
+        }
+        return destRanges;
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    ts.nullTransformationContext = {
+        enableEmitNotification: ts.noop,
+        enableSubstitution: ts.noop,
+        endLexicalEnvironment: ts.returnUndefined,
+        getCompilerOptions: function () { return ({}); },
+        getEmitHost: ts.notImplemented,
+        getEmitResolver: ts.notImplemented,
+        setLexicalEnvironmentFlags: ts.noop,
+        getLexicalEnvironmentFlags: function () { return 0; },
+        hoistFunctionDeclaration: ts.noop,
+        hoistVariableDeclaration: ts.noop,
+        addInitializationStatement: ts.noop,
+        isEmitNotificationEnabled: ts.notImplemented,
+        isSubstitutionEnabled: ts.notImplemented,
+        onEmitNode: ts.noop,
+        onSubstituteNode: ts.notImplemented,
+        readEmitHelpers: ts.notImplemented,
+        requestEmitHelper: ts.noop,
+        resumeLexicalEnvironment: ts.noop,
+        startLexicalEnvironment: ts.noop,
+        suspendLexicalEnvironment: ts.noop,
+        addDiagnostic: ts.noop,
+    };
+    function createTypeCheck(value, tag) {
+        return tag === "undefined"
+            ? ts.createStrictEquality(value, ts.createVoidZero())
+            : ts.createStrictEquality(ts.createTypeOf(value), ts.createLiteral(tag));
+    }
+    ts.createTypeCheck = createTypeCheck;
+    function createMemberAccessForPropertyName(target, memberName, location) {
+        if (ts.isComputedPropertyName(memberName)) {
+            return ts.setTextRange(ts.createElementAccess(target, memberName.expression), location);
+        }
+        else {
+            var expression = ts.setTextRange((ts.isIdentifier(memberName) || ts.isPrivateIdentifier(memberName))
+                ? ts.createPropertyAccess(target, memberName)
+                : ts.createElementAccess(target, memberName), memberName);
+            ts.getOrCreateEmitNode(expression).flags |= 64;
+            return expression;
+        }
+    }
+    ts.createMemberAccessForPropertyName = createMemberAccessForPropertyName;
+    function createFunctionCall(func, thisArg, argumentsList, location) {
+        return ts.setTextRange(ts.createCall(ts.createPropertyAccess(func, "call"), undefined, __spreadArrays([
+            thisArg
+        ], argumentsList)), location);
+    }
+    ts.createFunctionCall = createFunctionCall;
+    function createFunctionApply(func, thisArg, argumentsExpression, location) {
+        return ts.setTextRange(ts.createCall(ts.createPropertyAccess(func, "apply"), undefined, [
+            thisArg,
+            argumentsExpression
+        ]), location);
+    }
+    ts.createFunctionApply = createFunctionApply;
+    function createArraySlice(array, start) {
+        var argumentsList = [];
+        if (start !== undefined) {
+            argumentsList.push(typeof start === "number" ? ts.createLiteral(start) : start);
+        }
+        return ts.createCall(ts.createPropertyAccess(array, "slice"), undefined, argumentsList);
+    }
+    ts.createArraySlice = createArraySlice;
+    function createArrayConcat(array, values) {
+        return ts.createCall(ts.createPropertyAccess(array, "concat"), undefined, values);
+    }
+    ts.createArrayConcat = createArrayConcat;
+    function createMathPow(left, right, location) {
+        return ts.setTextRange(ts.createCall(ts.createPropertyAccess(ts.createIdentifier("Math"), "pow"), undefined, [left, right]), location);
+    }
+    ts.createMathPow = createMathPow;
+    function createReactNamespace(reactNamespace, parent) {
+        var react = ts.createIdentifier(reactNamespace || "React");
+        react.flags &= ~8;
+        react.parent = ts.getParseTreeNode(parent);
+        return react;
+    }
+    function createJsxFactoryExpressionFromEntityName(jsxFactory, parent) {
+        if (ts.isQualifiedName(jsxFactory)) {
+            var left = createJsxFactoryExpressionFromEntityName(jsxFactory.left, parent);
+            var right = ts.createIdentifier(ts.idText(jsxFactory.right));
+            right.escapedText = jsxFactory.right.escapedText;
+            return ts.createPropertyAccess(left, right);
+        }
+        else {
+            return createReactNamespace(ts.idText(jsxFactory), parent);
+        }
+    }
+    function createJsxFactoryExpression(jsxFactoryEntity, reactNamespace, parent) {
+        return jsxFactoryEntity ?
+            createJsxFactoryExpressionFromEntityName(jsxFactoryEntity, parent) :
+            ts.createPropertyAccess(createReactNamespace(reactNamespace, parent), "createElement");
+    }
+    function createExpressionForJsxElement(jsxFactoryEntity, reactNamespace, tagName, props, children, parentElement, location) {
+        var argumentsList = [tagName];
+        if (props) {
+            argumentsList.push(props);
+        }
+        if (children && children.length > 0) {
+            if (!props) {
+                argumentsList.push(ts.createNull());
+            }
+            if (children.length > 1) {
+                for (var _i = 0, children_2 = children; _i < children_2.length; _i++) {
+                    var child = children_2[_i];
+                    startOnNewLine(child);
+                    argumentsList.push(child);
+                }
+            }
+            else {
+                argumentsList.push(children[0]);
+            }
+        }
+        return ts.setTextRange(ts.createCall(createJsxFactoryExpression(jsxFactoryEntity, reactNamespace, parentElement), undefined, argumentsList), location);
+    }
+    ts.createExpressionForJsxElement = createExpressionForJsxElement;
+    function createExpressionForJsxFragment(jsxFactoryEntity, reactNamespace, children, parentElement, location) {
+        var tagName = ts.createPropertyAccess(createReactNamespace(reactNamespace, parentElement), "Fragment");
+        var argumentsList = [tagName];
+        argumentsList.push(ts.createNull());
+        if (children && children.length > 0) {
+            if (children.length > 1) {
+                for (var _i = 0, children_3 = children; _i < children_3.length; _i++) {
+                    var child = children_3[_i];
+                    startOnNewLine(child);
+                    argumentsList.push(child);
+                }
+            }
+            else {
+                argumentsList.push(children[0]);
+            }
+        }
+        return ts.setTextRange(ts.createCall(createJsxFactoryExpression(jsxFactoryEntity, reactNamespace, parentElement), undefined, argumentsList), location);
+    }
+    ts.createExpressionForJsxFragment = createExpressionForJsxFragment;
+    function getUnscopedHelperName(name) {
+        return ts.setEmitFlags(ts.createIdentifier(name), 4096 | 2);
+    }
+    ts.getUnscopedHelperName = getUnscopedHelperName;
+    ts.valuesHelper = {
+        name: "typescript:values",
+        importName: "__values",
+        scoped: false,
+        text: "\n            var __values = (this && this.__values) || function(o) {\n                var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\n                if (m) return m.call(o);\n                if (o && typeof o.length === \"number\") return {\n                    next: function () {\n                        if (o && i >= o.length) o = void 0;\n                        return { value: o && o[i++], done: !o };\n                    }\n                };\n                throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\n            };"
+    };
+    function createValuesHelper(context, expression, location) {
+        context.requestEmitHelper(ts.valuesHelper);
+        return ts.setTextRange(ts.createCall(getUnscopedHelperName("__values"), undefined, [expression]), location);
+    }
+    ts.createValuesHelper = createValuesHelper;
+    ts.readHelper = {
+        name: "typescript:read",
+        importName: "__read",
+        scoped: false,
+        text: "\n            var __read = (this && this.__read) || function (o, n) {\n                var m = typeof Symbol === \"function\" && o[Symbol.iterator];\n                if (!m) return o;\n                var i = m.call(o), r, ar = [], e;\n                try {\n                    while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\n                }\n                catch (error) { e = { error: error }; }\n                finally {\n                    try {\n                        if (r && !r.done && (m = i[\"return\"])) m.call(i);\n                    }\n                    finally { if (e) throw e.error; }\n                }\n                return ar;\n            };"
+    };
+    function createReadHelper(context, iteratorRecord, count, location) {
+        context.requestEmitHelper(ts.readHelper);
+        return ts.setTextRange(ts.createCall(getUnscopedHelperName("__read"), undefined, count !== undefined
+            ? [iteratorRecord, ts.createLiteral(count)]
+            : [iteratorRecord]), location);
+    }
+    ts.createReadHelper = createReadHelper;
+    ts.spreadHelper = {
+        name: "typescript:spread",
+        importName: "__spread",
+        scoped: false,
+        dependencies: [ts.readHelper],
+        text: "\n            var __spread = (this && this.__spread) || function () {\n                for (var ar = [], i = 0; i < arguments.length; i++) ar = ar.concat(__read(arguments[i]));\n                return ar;\n            };"
+    };
+    function createSpreadHelper(context, argumentList, location) {
+        context.requestEmitHelper(ts.spreadHelper);
+        return ts.setTextRange(ts.createCall(getUnscopedHelperName("__spread"), undefined, argumentList), location);
+    }
+    ts.createSpreadHelper = createSpreadHelper;
+    ts.spreadArraysHelper = {
+        name: "typescript:spreadArrays",
+        importName: "__spreadArrays",
+        scoped: false,
+        text: "\n            var __spreadArrays = (this && this.__spreadArrays) || function () {\n                for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\n                for (var r = Array(s), k = 0, i = 0; i < il; i++)\n                    for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\n                        r[k] = a[j];\n                return r;\n            };"
+    };
+    function createSpreadArraysHelper(context, argumentList, location) {
+        context.requestEmitHelper(ts.spreadArraysHelper);
+        return ts.setTextRange(ts.createCall(getUnscopedHelperName("__spreadArrays"), undefined, argumentList), location);
+    }
+    ts.createSpreadArraysHelper = createSpreadArraysHelper;
+    function createForOfBindingStatement(node, boundValue) {
+        if (ts.isVariableDeclarationList(node)) {
+            var firstDeclaration = ts.first(node.declarations);
+            var updatedDeclaration = ts.updateVariableDeclaration(firstDeclaration, firstDeclaration.name, undefined, boundValue);
+            return ts.setTextRange(ts.createVariableStatement(undefined, ts.updateVariableDeclarationList(node, [updatedDeclaration])), node);
+        }
+        else {
+            var updatedExpression = ts.setTextRange(ts.createAssignment(node, boundValue), node);
+            return ts.setTextRange(ts.createStatement(updatedExpression), node);
+        }
+    }
+    ts.createForOfBindingStatement = createForOfBindingStatement;
+    function insertLeadingStatement(dest, source) {
+        if (ts.isBlock(dest)) {
+            return ts.updateBlock(dest, ts.setTextRange(ts.createNodeArray(__spreadArrays([source], dest.statements)), dest.statements));
+        }
+        else {
+            return ts.createBlock(ts.createNodeArray([dest, source]), true);
+        }
+    }
+    ts.insertLeadingStatement = insertLeadingStatement;
+    function restoreEnclosingLabel(node, outermostLabeledStatement, afterRestoreLabelCallback) {
+        if (!outermostLabeledStatement) {
+            return node;
+        }
+        var updated = ts.updateLabel(outermostLabeledStatement, outermostLabeledStatement.label, outermostLabeledStatement.statement.kind === 238
+            ? restoreEnclosingLabel(node, outermostLabeledStatement.statement)
+            : node);
+        if (afterRestoreLabelCallback) {
+            afterRestoreLabelCallback(outermostLabeledStatement);
+        }
+        return updated;
+    }
+    ts.restoreEnclosingLabel = restoreEnclosingLabel;
+    function shouldBeCapturedInTempVariable(node, cacheIdentifiers) {
+        var target = ts.skipParentheses(node);
+        switch (target.kind) {
+            case 75:
+                return cacheIdentifiers;
+            case 104:
+            case 8:
+            case 9:
+            case 10:
+                return false;
+            case 192:
+                var elements = target.elements;
+                if (elements.length === 0) {
+                    return false;
+                }
+                return true;
+            case 193:
+                return target.properties.length > 0;
+            default:
+                return true;
+        }
+    }
+    function createCallBinding(expression, recordTempVariable, languageVersion, cacheIdentifiers) {
+        if (cacheIdentifiers === void 0) { cacheIdentifiers = false; }
+        var callee = skipOuterExpressions(expression, 15);
+        var thisArg;
+        var target;
+        if (ts.isSuperProperty(callee)) {
+            thisArg = ts.createThis();
+            target = callee;
+        }
+        else if (callee.kind === 102) {
+            thisArg = ts.createThis();
+            target = languageVersion < 2
+                ? ts.setTextRange(ts.createIdentifier("_super"), callee)
+                : callee;
+        }
+        else if (ts.getEmitFlags(callee) & 4096) {
+            thisArg = ts.createVoidZero();
+            target = parenthesizeForAccess(callee);
+        }
+        else {
+            switch (callee.kind) {
+                case 194: {
+                    if (shouldBeCapturedInTempVariable(callee.expression, cacheIdentifiers)) {
+                        thisArg = ts.createTempVariable(recordTempVariable);
+                        target = ts.createPropertyAccess(ts.setTextRange(ts.createAssignment(thisArg, callee.expression), callee.expression), callee.name);
+                        ts.setTextRange(target, callee);
+                    }
+                    else {
+                        thisArg = callee.expression;
+                        target = callee;
+                    }
+                    break;
+                }
+                case 195: {
+                    if (shouldBeCapturedInTempVariable(callee.expression, cacheIdentifiers)) {
+                        thisArg = ts.createTempVariable(recordTempVariable);
+                        target = ts.createElementAccess(ts.setTextRange(ts.createAssignment(thisArg, callee.expression), callee.expression), callee.argumentExpression);
+                        ts.setTextRange(target, callee);
+                    }
+                    else {
+                        thisArg = callee.expression;
+                        target = callee;
+                    }
+                    break;
+                }
+                default: {
+                    thisArg = ts.createVoidZero();
+                    target = parenthesizeForAccess(expression);
+                    break;
+                }
+            }
+        }
+        return { target: target, thisArg: thisArg };
+    }
+    ts.createCallBinding = createCallBinding;
+    function inlineExpressions(expressions) {
+        return expressions.length > 10
+            ? ts.createCommaList(expressions)
+            : ts.reduceLeft(expressions, ts.createComma);
+    }
+    ts.inlineExpressions = inlineExpressions;
+    function createExpressionFromEntityName(node) {
+        if (ts.isQualifiedName(node)) {
+            var left = createExpressionFromEntityName(node.left);
+            var right = ts.getMutableClone(node.right);
+            return ts.setTextRange(ts.createPropertyAccess(left, right), node);
+        }
+        else {
+            return ts.getMutableClone(node);
+        }
+    }
+    ts.createExpressionFromEntityName = createExpressionFromEntityName;
+    function createExpressionForPropertyName(memberName) {
+        if (ts.isIdentifier(memberName)) {
+            return ts.createLiteral(memberName);
+        }
+        else if (ts.isComputedPropertyName(memberName)) {
+            return ts.getMutableClone(memberName.expression);
+        }
+        else {
+            return ts.getMutableClone(memberName);
+        }
+    }
+    ts.createExpressionForPropertyName = createExpressionForPropertyName;
+    function createExpressionForObjectLiteralElementLike(node, property, receiver) {
+        if (property.name && ts.isPrivateIdentifier(property.name)) {
+            ts.Debug.failBadSyntaxKind(property.name, "Private identifiers are not allowed in object literals.");
+        }
+        switch (property.kind) {
+            case 163:
+            case 164:
+                return createExpressionForAccessorDeclaration(node.properties, property, receiver, !!node.multiLine);
+            case 281:
+                return createExpressionForPropertyAssignment(property, receiver);
+            case 282:
+                return createExpressionForShorthandPropertyAssignment(property, receiver);
+            case 161:
+                return createExpressionForMethodDeclaration(property, receiver);
+        }
+    }
+    ts.createExpressionForObjectLiteralElementLike = createExpressionForObjectLiteralElementLike;
+    function createExpressionForAccessorDeclaration(properties, property, receiver, multiLine) {
+        var _a = ts.getAllAccessorDeclarations(properties, property), firstAccessor = _a.firstAccessor, getAccessor = _a.getAccessor, setAccessor = _a.setAccessor;
+        if (property === firstAccessor) {
+            var properties_7 = [];
+            if (getAccessor) {
+                var getterFunction = ts.createFunctionExpression(getAccessor.modifiers, undefined, undefined, undefined, getAccessor.parameters, undefined, getAccessor.body);
+                ts.setTextRange(getterFunction, getAccessor);
+                ts.setOriginalNode(getterFunction, getAccessor);
+                var getter = ts.createPropertyAssignment("get", getterFunction);
+                properties_7.push(getter);
+            }
+            if (setAccessor) {
+                var setterFunction = ts.createFunctionExpression(setAccessor.modifiers, undefined, undefined, undefined, setAccessor.parameters, undefined, setAccessor.body);
+                ts.setTextRange(setterFunction, setAccessor);
+                ts.setOriginalNode(setterFunction, setAccessor);
+                var setter = ts.createPropertyAssignment("set", setterFunction);
+                properties_7.push(setter);
+            }
+            properties_7.push(ts.createPropertyAssignment("enumerable", getAccessor || setAccessor ? ts.createFalse() : ts.createTrue()));
+            properties_7.push(ts.createPropertyAssignment("configurable", ts.createTrue()));
+            var expression = ts.setTextRange(ts.createCall(ts.createPropertyAccess(ts.createIdentifier("Object"), "defineProperty"), undefined, [
+                receiver,
+                createExpressionForPropertyName(property.name),
+                ts.createObjectLiteral(properties_7, multiLine)
+            ]), firstAccessor);
+            return ts.aggregateTransformFlags(expression);
+        }
+        return undefined;
+    }
+    function createExpressionForPropertyAssignment(property, receiver) {
+        return ts.aggregateTransformFlags(ts.setOriginalNode(ts.setTextRange(ts.createAssignment(createMemberAccessForPropertyName(receiver, property.name, property.name), property.initializer), property), property));
+    }
+    function createExpressionForShorthandPropertyAssignment(property, receiver) {
+        return ts.aggregateTransformFlags(ts.setOriginalNode(ts.setTextRange(ts.createAssignment(createMemberAccessForPropertyName(receiver, property.name, property.name), ts.getSynthesizedClone(property.name)), property), property));
+    }
+    function createExpressionForMethodDeclaration(method, receiver) {
+        return ts.aggregateTransformFlags(ts.setOriginalNode(ts.setTextRange(ts.createAssignment(createMemberAccessForPropertyName(receiver, method.name, method.name), ts.setOriginalNode(ts.setTextRange(ts.createFunctionExpression(method.modifiers, method.asteriskToken, undefined, undefined, method.parameters, undefined, method.body), method), method)), method), method));
+    }
+    function getInternalName(node, allowComments, allowSourceMaps) {
+        return getName(node, allowComments, allowSourceMaps, 16384 | 32768);
+    }
+    ts.getInternalName = getInternalName;
+    function isInternalName(node) {
+        return (ts.getEmitFlags(node) & 32768) !== 0;
+    }
+    ts.isInternalName = isInternalName;
+    function getLocalName(node, allowComments, allowSourceMaps) {
+        return getName(node, allowComments, allowSourceMaps, 16384);
+    }
+    ts.getLocalName = getLocalName;
+    function isLocalName(node) {
+        return (ts.getEmitFlags(node) & 16384) !== 0;
+    }
+    ts.isLocalName = isLocalName;
+    function getExportName(node, allowComments, allowSourceMaps) {
+        return getName(node, allowComments, allowSourceMaps, 8192);
+    }
+    ts.getExportName = getExportName;
+    function isExportName(node) {
+        return (ts.getEmitFlags(node) & 8192) !== 0;
+    }
+    ts.isExportName = isExportName;
+    function getDeclarationName(node, allowComments, allowSourceMaps) {
+        return getName(node, allowComments, allowSourceMaps);
+    }
+    ts.getDeclarationName = getDeclarationName;
+    function getName(node, allowComments, allowSourceMaps, emitFlags) {
+        if (emitFlags === void 0) { emitFlags = 0; }
+        var nodeName = ts.getNameOfDeclaration(node);
+        if (nodeName && ts.isIdentifier(nodeName) && !ts.isGeneratedIdentifier(nodeName)) {
+            var name = ts.getMutableClone(nodeName);
+            emitFlags |= ts.getEmitFlags(nodeName);
+            if (!allowSourceMaps)
+                emitFlags |= 48;
+            if (!allowComments)
+                emitFlags |= 1536;
+            if (emitFlags)
+                ts.setEmitFlags(name, emitFlags);
+            return name;
+        }
+        return ts.getGeneratedNameForNode(node);
+    }
+    function getExternalModuleOrNamespaceExportName(ns, node, allowComments, allowSourceMaps) {
+        if (ns && ts.hasModifier(node, 1)) {
+            return getNamespaceMemberName(ns, getName(node), allowComments, allowSourceMaps);
+        }
+        return getExportName(node, allowComments, allowSourceMaps);
+    }
+    ts.getExternalModuleOrNamespaceExportName = getExternalModuleOrNamespaceExportName;
+    function getNamespaceMemberName(ns, name, allowComments, allowSourceMaps) {
+        var qualifiedName = ts.createPropertyAccess(ns, ts.nodeIsSynthesized(name) ? name : ts.getSynthesizedClone(name));
+        ts.setTextRange(qualifiedName, name);
+        var emitFlags = 0;
+        if (!allowSourceMaps)
+            emitFlags |= 48;
+        if (!allowComments)
+            emitFlags |= 1536;
+        if (emitFlags)
+            ts.setEmitFlags(qualifiedName, emitFlags);
+        return qualifiedName;
+    }
+    ts.getNamespaceMemberName = getNamespaceMemberName;
+    function convertToFunctionBody(node, multiLine) {
+        return ts.isBlock(node) ? node : ts.setTextRange(ts.createBlock([ts.setTextRange(ts.createReturn(node), node)], multiLine), node);
+    }
+    ts.convertToFunctionBody = convertToFunctionBody;
+    function convertFunctionDeclarationToExpression(node) {
+        if (!node.body)
+            return ts.Debug.fail();
+        var updated = ts.createFunctionExpression(node.modifiers, node.asteriskToken, node.name, node.typeParameters, node.parameters, node.type, node.body);
+        ts.setOriginalNode(updated, node);
+        ts.setTextRange(updated, node);
+        if (ts.getStartsOnNewLine(node)) {
+            ts.setStartsOnNewLine(updated, true);
+        }
+        ts.aggregateTransformFlags(updated);
+        return updated;
+    }
+    ts.convertFunctionDeclarationToExpression = convertFunctionDeclarationToExpression;
+    function isUseStrictPrologue(node) {
+        return ts.isStringLiteral(node.expression) && node.expression.text === "use strict";
+    }
+    function addPrologue(target, source, ensureUseStrict, visitor) {
+        var offset = addStandardPrologue(target, source, ensureUseStrict);
+        return addCustomPrologue(target, source, offset, visitor);
+    }
+    ts.addPrologue = addPrologue;
+    function addStandardPrologue(target, source, ensureUseStrict) {
+        ts.Debug.assert(target.length === 0, "Prologue directives should be at the first statement in the target statements array");
+        var foundUseStrict = false;
+        var statementOffset = 0;
+        var numStatements = source.length;
+        while (statementOffset < numStatements) {
+            var statement = source[statementOffset];
+            if (ts.isPrologueDirective(statement)) {
+                if (isUseStrictPrologue(statement)) {
+                    foundUseStrict = true;
+                }
+                target.push(statement);
+            }
+            else {
+                break;
+            }
+            statementOffset++;
+        }
+        if (ensureUseStrict && !foundUseStrict) {
+            target.push(startOnNewLine(ts.createStatement(ts.createLiteral("use strict"))));
+        }
+        return statementOffset;
+    }
+    ts.addStandardPrologue = addStandardPrologue;
+    function addCustomPrologue(target, source, statementOffset, visitor, filter) {
+        if (filter === void 0) { filter = ts.returnTrue; }
+        var numStatements = source.length;
+        while (statementOffset !== undefined && statementOffset < numStatements) {
+            var statement = source[statementOffset];
+            if (ts.getEmitFlags(statement) & 1048576 && filter(statement)) {
+                ts.append(target, visitor ? ts.visitNode(statement, visitor, ts.isStatement) : statement);
+            }
+            else {
+                break;
+            }
+            statementOffset++;
+        }
+        return statementOffset;
+    }
+    ts.addCustomPrologue = addCustomPrologue;
+    function findUseStrictPrologue(statements) {
+        for (var _i = 0, statements_4 = statements; _i < statements_4.length; _i++) {
+            var statement = statements_4[_i];
+            if (ts.isPrologueDirective(statement)) {
+                if (isUseStrictPrologue(statement)) {
+                    return statement;
+                }
+            }
+            else {
+                break;
+            }
+        }
+        return undefined;
+    }
+    ts.findUseStrictPrologue = findUseStrictPrologue;
+    function startsWithUseStrict(statements) {
+        var firstStatement = ts.firstOrUndefined(statements);
+        return firstStatement !== undefined
+            && ts.isPrologueDirective(firstStatement)
+            && isUseStrictPrologue(firstStatement);
+    }
+    ts.startsWithUseStrict = startsWithUseStrict;
+    function ensureUseStrict(statements) {
+        var foundUseStrict = findUseStrictPrologue(statements);
+        if (!foundUseStrict) {
+            return ts.setTextRange(ts.createNodeArray(__spreadArrays([
+                startOnNewLine(ts.createStatement(ts.createLiteral("use strict")))
+            ], statements)), statements);
+        }
+        return statements;
+    }
+    ts.ensureUseStrict = ensureUseStrict;
+    function parenthesizeBinaryOperand(binaryOperator, operand, isLeftSideOfBinary, leftOperand) {
+        var skipped = ts.skipPartiallyEmittedExpressions(operand);
+        if (skipped.kind === 200) {
+            return operand;
+        }
+        return binaryOperandNeedsParentheses(binaryOperator, operand, isLeftSideOfBinary, leftOperand)
+            ? ts.createParen(operand)
+            : operand;
+    }
+    ts.parenthesizeBinaryOperand = parenthesizeBinaryOperand;
+    function binaryOperandNeedsParentheses(binaryOperator, operand, isLeftSideOfBinary, leftOperand) {
+        var binaryOperatorPrecedence = ts.getOperatorPrecedence(209, binaryOperator);
+        var binaryOperatorAssociativity = ts.getOperatorAssociativity(209, binaryOperator);
+        var emittedOperand = ts.skipPartiallyEmittedExpressions(operand);
+        if (!isLeftSideOfBinary && operand.kind === 202 && binaryOperatorPrecedence > 3) {
+            return true;
+        }
+        var operandPrecedence = ts.getExpressionPrecedence(emittedOperand);
+        switch (ts.compareValues(operandPrecedence, binaryOperatorPrecedence)) {
+            case -1:
+                if (!isLeftSideOfBinary
+                    && binaryOperatorAssociativity === 1
+                    && operand.kind === 212) {
+                    return false;
+                }
+                return true;
+            case 1:
+                return false;
+            case 0:
+                if (isLeftSideOfBinary) {
+                    return binaryOperatorAssociativity === 1;
+                }
+                else {
+                    if (ts.isBinaryExpression(emittedOperand)
+                        && emittedOperand.operatorToken.kind === binaryOperator) {
+                        if (operatorHasAssociativeProperty(binaryOperator)) {
+                            return false;
+                        }
+                        if (binaryOperator === 39) {
+                            var leftKind = leftOperand ? getLiteralKindOfBinaryPlusOperand(leftOperand) : 0;
+                            if (ts.isLiteralKind(leftKind) && leftKind === getLiteralKindOfBinaryPlusOperand(emittedOperand)) {
+                                return false;
+                            }
+                        }
+                    }
+                    var operandAssociativity = ts.getExpressionAssociativity(emittedOperand);
+                    return operandAssociativity === 0;
+                }
+        }
+    }
+    function operatorHasAssociativeProperty(binaryOperator) {
+        return binaryOperator === 41
+            || binaryOperator === 51
+            || binaryOperator === 50
+            || binaryOperator === 52;
+    }
+    function getLiteralKindOfBinaryPlusOperand(node) {
+        node = ts.skipPartiallyEmittedExpressions(node);
+        if (ts.isLiteralKind(node.kind)) {
+            return node.kind;
+        }
+        if (node.kind === 209 && node.operatorToken.kind === 39) {
+            if (node.cachedLiteralKind !== undefined) {
+                return node.cachedLiteralKind;
+            }
+            var leftKind = getLiteralKindOfBinaryPlusOperand(node.left);
+            var literalKind = ts.isLiteralKind(leftKind) && leftKind === getLiteralKindOfBinaryPlusOperand(node.right) ? leftKind :
+                0;
+            node.cachedLiteralKind = literalKind;
+            return literalKind;
+        }
+        return 0;
+    }
+    function parenthesizeForConditionalHead(condition) {
+        var conditionalPrecedence = ts.getOperatorPrecedence(210, 57);
+        var emittedCondition = ts.skipPartiallyEmittedExpressions(condition);
+        var conditionPrecedence = ts.getExpressionPrecedence(emittedCondition);
+        if (ts.compareValues(conditionPrecedence, conditionalPrecedence) !== 1) {
+            return ts.createParen(condition);
+        }
+        return condition;
+    }
+    ts.parenthesizeForConditionalHead = parenthesizeForConditionalHead;
+    function parenthesizeSubexpressionOfConditionalExpression(e) {
+        var emittedExpression = ts.skipPartiallyEmittedExpressions(e);
+        return isCommaSequence(emittedExpression)
+            ? ts.createParen(e)
+            : e;
+    }
+    ts.parenthesizeSubexpressionOfConditionalExpression = parenthesizeSubexpressionOfConditionalExpression;
+    function parenthesizeDefaultExpression(e) {
+        var check = ts.skipPartiallyEmittedExpressions(e);
+        var needsParens = isCommaSequence(check);
+        if (!needsParens) {
+            switch (getLeftmostExpression(check, false).kind) {
+                case 214:
+                case 201:
+                    needsParens = true;
+            }
+        }
+        return needsParens ? ts.createParen(e) : e;
+    }
+    ts.parenthesizeDefaultExpression = parenthesizeDefaultExpression;
+    function parenthesizeForNew(expression) {
+        var leftmostExpr = getLeftmostExpression(expression, true);
+        switch (leftmostExpr.kind) {
+            case 196:
+                return ts.createParen(expression);
+            case 197:
+                return !leftmostExpr.arguments
+                    ? ts.createParen(expression)
+                    : expression;
+        }
+        return parenthesizeForAccess(expression);
+    }
+    ts.parenthesizeForNew = parenthesizeForNew;
+    function parenthesizeForAccess(expression) {
+        var emittedExpression = ts.skipPartiallyEmittedExpressions(expression);
+        if (ts.isLeftHandSideExpression(emittedExpression)
+            && (emittedExpression.kind !== 197 || emittedExpression.arguments)) {
+            return expression;
+        }
+        return ts.setTextRange(ts.createParen(expression), expression);
+    }
+    ts.parenthesizeForAccess = parenthesizeForAccess;
+    function parenthesizePostfixOperand(operand) {
+        return ts.isLeftHandSideExpression(operand)
+            ? operand
+            : ts.setTextRange(ts.createParen(operand), operand);
+    }
+    ts.parenthesizePostfixOperand = parenthesizePostfixOperand;
+    function parenthesizePrefixOperand(operand) {
+        return ts.isUnaryExpression(operand)
+            ? operand
+            : ts.setTextRange(ts.createParen(operand), operand);
+    }
+    ts.parenthesizePrefixOperand = parenthesizePrefixOperand;
+    function parenthesizeListElements(elements) {
+        var result;
+        for (var i = 0; i < elements.length; i++) {
+            var element = parenthesizeExpressionForList(elements[i]);
+            if (result !== undefined || element !== elements[i]) {
+                if (result === undefined) {
+                    result = elements.slice(0, i);
+                }
+                result.push(element);
+            }
+        }
+        if (result !== undefined) {
+            return ts.setTextRange(ts.createNodeArray(result, elements.hasTrailingComma), elements);
+        }
+        return elements;
+    }
+    ts.parenthesizeListElements = parenthesizeListElements;
+    function parenthesizeExpressionForList(expression) {
+        var emittedExpression = ts.skipPartiallyEmittedExpressions(expression);
+        var expressionPrecedence = ts.getExpressionPrecedence(emittedExpression);
+        var commaPrecedence = ts.getOperatorPrecedence(209, 27);
+        return expressionPrecedence > commaPrecedence
+            ? expression
+            : ts.setTextRange(ts.createParen(expression), expression);
+    }
+    ts.parenthesizeExpressionForList = parenthesizeExpressionForList;
+    function parenthesizeExpressionForExpressionStatement(expression) {
+        var emittedExpression = ts.skipPartiallyEmittedExpressions(expression);
+        if (ts.isCallExpression(emittedExpression)) {
+            var callee = emittedExpression.expression;
+            var kind = ts.skipPartiallyEmittedExpressions(callee).kind;
+            if (kind === 201 || kind === 202) {
+                var mutableCall = ts.getMutableClone(emittedExpression);
+                mutableCall.expression = ts.setTextRange(ts.createParen(callee), callee);
+                return recreateOuterExpressions(expression, mutableCall, 8);
+            }
+        }
+        var leftmostExpressionKind = getLeftmostExpression(emittedExpression, false).kind;
+        if (leftmostExpressionKind === 193 || leftmostExpressionKind === 201) {
+            return ts.setTextRange(ts.createParen(expression), expression);
+        }
+        return expression;
+    }
+    ts.parenthesizeExpressionForExpressionStatement = parenthesizeExpressionForExpressionStatement;
+    function parenthesizeConditionalTypeMember(member) {
+        return member.kind === 180 ? ts.createParenthesizedType(member) : member;
+    }
+    ts.parenthesizeConditionalTypeMember = parenthesizeConditionalTypeMember;
+    function parenthesizeElementTypeMember(member) {
+        switch (member.kind) {
+            case 178:
+            case 179:
+            case 170:
+            case 171:
+                return ts.createParenthesizedType(member);
+        }
+        return parenthesizeConditionalTypeMember(member);
+    }
+    ts.parenthesizeElementTypeMember = parenthesizeElementTypeMember;
+    function parenthesizeArrayTypeMember(member) {
+        switch (member.kind) {
+            case 172:
+            case 184:
+            case 181:
+                return ts.createParenthesizedType(member);
+        }
+        return parenthesizeElementTypeMember(member);
+    }
+    ts.parenthesizeArrayTypeMember = parenthesizeArrayTypeMember;
+    function parenthesizeElementTypeMembers(members) {
+        return ts.createNodeArray(ts.sameMap(members, parenthesizeElementTypeMember));
+    }
+    ts.parenthesizeElementTypeMembers = parenthesizeElementTypeMembers;
+    function parenthesizeTypeParameters(typeParameters) {
+        if (ts.some(typeParameters)) {
+            var params = [];
+            for (var i = 0; i < typeParameters.length; ++i) {
+                var entry = typeParameters[i];
+                params.push(i === 0 && ts.isFunctionOrConstructorTypeNode(entry) && entry.typeParameters ?
+                    ts.createParenthesizedType(entry) :
+                    entry);
+            }
+            return ts.createNodeArray(params);
+        }
+    }
+    ts.parenthesizeTypeParameters = parenthesizeTypeParameters;
+    function getLeftmostExpression(node, stopAtCallExpressions) {
+        while (true) {
+            switch (node.kind) {
+                case 208:
+                    node = node.operand;
+                    continue;
+                case 209:
+                    node = node.left;
+                    continue;
+                case 210:
+                    node = node.condition;
+                    continue;
+                case 198:
+                    node = node.tag;
+                    continue;
+                case 196:
+                    if (stopAtCallExpressions) {
+                        return node;
+                    }
+                case 217:
+                case 195:
+                case 194:
+                case 218:
+                case 326:
+                    node = node.expression;
+                    continue;
+            }
+            return node;
+        }
+    }
+    ts.getLeftmostExpression = getLeftmostExpression;
+    function parenthesizeConciseBody(body) {
+        if (!ts.isBlock(body) && (isCommaSequence(body) || getLeftmostExpression(body, false).kind === 193)) {
+            return ts.setTextRange(ts.createParen(body), body);
+        }
+        return body;
+    }
+    ts.parenthesizeConciseBody = parenthesizeConciseBody;
+    function isCommaSequence(node) {
+        return node.kind === 209 && node.operatorToken.kind === 27 ||
+            node.kind === 327;
+    }
+    ts.isCommaSequence = isCommaSequence;
+    function isOuterExpression(node, kinds) {
+        if (kinds === void 0) { kinds = 15; }
+        switch (node.kind) {
+            case 200:
+                return (kinds & 1) !== 0;
+            case 199:
+            case 217:
+                return (kinds & 2) !== 0;
+            case 218:
+                return (kinds & 4) !== 0;
+            case 326:
+                return (kinds & 8) !== 0;
+        }
+        return false;
+    }
+    ts.isOuterExpression = isOuterExpression;
+    function skipOuterExpressions(node, kinds) {
+        if (kinds === void 0) { kinds = 15; }
+        while (isOuterExpression(node, kinds)) {
+            node = node.expression;
+        }
+        return node;
+    }
+    ts.skipOuterExpressions = skipOuterExpressions;
+    function skipAssertions(node) {
+        return skipOuterExpressions(node, 6);
+    }
+    ts.skipAssertions = skipAssertions;
+    function updateOuterExpression(outerExpression, expression) {
+        switch (outerExpression.kind) {
+            case 200: return ts.updateParen(outerExpression, expression);
+            case 199: return ts.updateTypeAssertion(outerExpression, outerExpression.type, expression);
+            case 217: return ts.updateAsExpression(outerExpression, expression, outerExpression.type);
+            case 218: return ts.updateNonNullExpression(outerExpression, expression);
+            case 326: return ts.updatePartiallyEmittedExpression(outerExpression, expression);
+        }
+    }
+    function isIgnorableParen(node) {
+        return node.kind === 200
+            && ts.nodeIsSynthesized(node)
+            && ts.nodeIsSynthesized(ts.getSourceMapRange(node))
+            && ts.nodeIsSynthesized(ts.getCommentRange(node))
+            && !ts.some(ts.getSyntheticLeadingComments(node))
+            && !ts.some(ts.getSyntheticTrailingComments(node));
+    }
+    function recreateOuterExpressions(outerExpression, innerExpression, kinds) {
+        if (kinds === void 0) { kinds = 15; }
+        if (outerExpression && isOuterExpression(outerExpression, kinds) && !isIgnorableParen(outerExpression)) {
+            return updateOuterExpression(outerExpression, recreateOuterExpressions(outerExpression.expression, innerExpression));
+        }
+        return innerExpression;
+    }
+    ts.recreateOuterExpressions = recreateOuterExpressions;
+    function startOnNewLine(node) {
+        return ts.setStartsOnNewLine(node, true);
+    }
+    ts.startOnNewLine = startOnNewLine;
+    function getExternalHelpersModuleName(node) {
+        var parseNode = ts.getOriginalNode(node, ts.isSourceFile);
+        var emitNode = parseNode && parseNode.emitNode;
+        return emitNode && emitNode.externalHelpersModuleName;
+    }
+    ts.getExternalHelpersModuleName = getExternalHelpersModuleName;
+    function hasRecordedExternalHelpers(sourceFile) {
+        var parseNode = ts.getOriginalNode(sourceFile, ts.isSourceFile);
+        var emitNode = parseNode && parseNode.emitNode;
+        return !!emitNode && (!!emitNode.externalHelpersModuleName || !!emitNode.externalHelpers);
+    }
+    ts.hasRecordedExternalHelpers = hasRecordedExternalHelpers;
+    function createExternalHelpersImportDeclarationIfNeeded(sourceFile, compilerOptions, hasExportStarsToExportValues, hasImportStar, hasImportDefault) {
+        if (compilerOptions.importHelpers && ts.isEffectiveExternalModule(sourceFile, compilerOptions)) {
+            var namedBindings = void 0;
+            var moduleKind = ts.getEmitModuleKind(compilerOptions);
+            if (moduleKind >= ts.ModuleKind.ES2015 && moduleKind <= ts.ModuleKind.ESNext) {
+                var helpers = ts.getEmitHelpers(sourceFile);
+                if (helpers) {
+                    var helperNames = [];
+                    for (var _i = 0, helpers_2 = helpers; _i < helpers_2.length; _i++) {
+                        var helper = helpers_2[_i];
+                        if (!helper.scoped) {
+                            var importName = helper.importName;
+                            if (importName) {
+                                ts.pushIfUnique(helperNames, importName);
+                            }
+                        }
+                    }
+                    if (ts.some(helperNames)) {
+                        helperNames.sort(ts.compareStringsCaseSensitive);
+                        namedBindings = ts.createNamedImports(ts.map(helperNames, function (name) { return ts.isFileLevelUniqueName(sourceFile, name)
+                            ? ts.createImportSpecifier(undefined, ts.createIdentifier(name))
+                            : ts.createImportSpecifier(ts.createIdentifier(name), getUnscopedHelperName(name)); }));
+                        var parseNode = ts.getOriginalNode(sourceFile, ts.isSourceFile);
+                        var emitNode = ts.getOrCreateEmitNode(parseNode);
+                        emitNode.externalHelpers = true;
+                    }
+                }
+            }
+            else {
+                var externalHelpersModuleName = getOrCreateExternalHelpersModuleNameIfNeeded(sourceFile, compilerOptions, hasExportStarsToExportValues, hasImportStar || hasImportDefault);
+                if (externalHelpersModuleName) {
+                    namedBindings = ts.createNamespaceImport(externalHelpersModuleName);
+                }
+            }
+            if (namedBindings) {
+                var externalHelpersImportDeclaration = ts.createImportDeclaration(undefined, undefined, ts.createImportClause(undefined, namedBindings), ts.createLiteral(ts.externalHelpersModuleNameText));
+                ts.addEmitFlags(externalHelpersImportDeclaration, 67108864);
+                return externalHelpersImportDeclaration;
+            }
+        }
+    }
+    ts.createExternalHelpersImportDeclarationIfNeeded = createExternalHelpersImportDeclarationIfNeeded;
+    function getOrCreateExternalHelpersModuleNameIfNeeded(node, compilerOptions, hasExportStarsToExportValues, hasImportStarOrImportDefault) {
+        if (compilerOptions.importHelpers && ts.isEffectiveExternalModule(node, compilerOptions)) {
+            var externalHelpersModuleName = getExternalHelpersModuleName(node);
+            if (externalHelpersModuleName) {
+                return externalHelpersModuleName;
+            }
+            var moduleKind = ts.getEmitModuleKind(compilerOptions);
+            var create = (hasExportStarsToExportValues || (compilerOptions.esModuleInterop && hasImportStarOrImportDefault))
+                && moduleKind !== ts.ModuleKind.System
+                && moduleKind < ts.ModuleKind.ES2015;
+            if (!create) {
+                var helpers = ts.getEmitHelpers(node);
+                if (helpers) {
+                    for (var _i = 0, helpers_3 = helpers; _i < helpers_3.length; _i++) {
+                        var helper = helpers_3[_i];
+                        if (!helper.scoped) {
+                            create = true;
+                            break;
+                        }
+                    }
+                }
+            }
+            if (create) {
+                var parseNode = ts.getOriginalNode(node, ts.isSourceFile);
+                var emitNode = ts.getOrCreateEmitNode(parseNode);
+                return emitNode.externalHelpersModuleName || (emitNode.externalHelpersModuleName = ts.createUniqueName(ts.externalHelpersModuleNameText));
+            }
+        }
+    }
+    ts.getOrCreateExternalHelpersModuleNameIfNeeded = getOrCreateExternalHelpersModuleNameIfNeeded;
+    function getLocalNameForExternalImport(node, sourceFile) {
+        var namespaceDeclaration = ts.getNamespaceDeclarationNode(node);
+        if (namespaceDeclaration && !ts.isDefaultImport(node)) {
+            var name = namespaceDeclaration.name;
+            return ts.isGeneratedIdentifier(name) ? name : ts.createIdentifier(ts.getSourceTextOfNodeFromSourceFile(sourceFile, name) || ts.idText(name));
+        }
+        if (node.kind === 254 && node.importClause) {
+            return ts.getGeneratedNameForNode(node);
+        }
+        if (node.kind === 260 && node.moduleSpecifier) {
+            return ts.getGeneratedNameForNode(node);
+        }
+        return undefined;
+    }
+    ts.getLocalNameForExternalImport = getLocalNameForExternalImport;
+    function getExternalModuleNameLiteral(importNode, sourceFile, host, resolver, compilerOptions) {
+        var moduleName = ts.getExternalModuleName(importNode);
+        if (moduleName.kind === 10) {
+            return tryGetModuleNameFromDeclaration(importNode, host, resolver, compilerOptions)
+                || tryRenameExternalModule(moduleName, sourceFile)
+                || ts.getSynthesizedClone(moduleName);
+        }
+        return undefined;
+    }
+    ts.getExternalModuleNameLiteral = getExternalModuleNameLiteral;
+    function tryRenameExternalModule(moduleName, sourceFile) {
+        var rename = sourceFile.renamedDependencies && sourceFile.renamedDependencies.get(moduleName.text);
+        return rename && ts.createLiteral(rename);
+    }
+    function tryGetModuleNameFromFile(file, host, options) {
+        if (!file) {
+            return undefined;
+        }
+        if (file.moduleName) {
+            return ts.createLiteral(file.moduleName);
+        }
+        if (!file.isDeclarationFile && (options.out || options.outFile)) {
+            return ts.createLiteral(ts.getExternalModuleNameFromPath(host, file.fileName));
+        }
+        return undefined;
+    }
+    ts.tryGetModuleNameFromFile = tryGetModuleNameFromFile;
+    function tryGetModuleNameFromDeclaration(declaration, host, resolver, compilerOptions) {
+        return tryGetModuleNameFromFile(resolver.getExternalModuleFileFromDeclaration(declaration), host, compilerOptions);
+    }
+    function getInitializerOfBindingOrAssignmentElement(bindingElement) {
+        if (ts.isDeclarationBindingElement(bindingElement)) {
+            return bindingElement.initializer;
+        }
+        if (ts.isPropertyAssignment(bindingElement)) {
+            var initializer = bindingElement.initializer;
+            return ts.isAssignmentExpression(initializer, true)
+                ? initializer.right
+                : undefined;
+        }
+        if (ts.isShorthandPropertyAssignment(bindingElement)) {
+            return bindingElement.objectAssignmentInitializer;
+        }
+        if (ts.isAssignmentExpression(bindingElement, true)) {
+            return bindingElement.right;
+        }
+        if (ts.isSpreadElement(bindingElement)) {
+            return getInitializerOfBindingOrAssignmentElement(bindingElement.expression);
+        }
+    }
+    ts.getInitializerOfBindingOrAssignmentElement = getInitializerOfBindingOrAssignmentElement;
+    function getTargetOfBindingOrAssignmentElement(bindingElement) {
+        if (ts.isDeclarationBindingElement(bindingElement)) {
+            return bindingElement.name;
+        }
+        if (ts.isObjectLiteralElementLike(bindingElement)) {
+            switch (bindingElement.kind) {
+                case 281:
+                    return getTargetOfBindingOrAssignmentElement(bindingElement.initializer);
+                case 282:
+                    return bindingElement.name;
+                case 283:
+                    return getTargetOfBindingOrAssignmentElement(bindingElement.expression);
+            }
+            return undefined;
+        }
+        if (ts.isAssignmentExpression(bindingElement, true)) {
+            return getTargetOfBindingOrAssignmentElement(bindingElement.left);
+        }
+        if (ts.isSpreadElement(bindingElement)) {
+            return getTargetOfBindingOrAssignmentElement(bindingElement.expression);
+        }
+        return bindingElement;
+    }
+    ts.getTargetOfBindingOrAssignmentElement = getTargetOfBindingOrAssignmentElement;
+    function getRestIndicatorOfBindingOrAssignmentElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 156:
+            case 191:
+                return bindingElement.dotDotDotToken;
+            case 213:
+            case 283:
+                return bindingElement;
+        }
+        return undefined;
+    }
+    ts.getRestIndicatorOfBindingOrAssignmentElement = getRestIndicatorOfBindingOrAssignmentElement;
+    function getPropertyNameOfBindingOrAssignmentElement(bindingElement) {
+        var propertyName = tryGetPropertyNameOfBindingOrAssignmentElement(bindingElement);
+        ts.Debug.assert(!!propertyName || ts.isSpreadAssignment(bindingElement), "Invalid property name for binding element.");
+        return propertyName;
+    }
+    ts.getPropertyNameOfBindingOrAssignmentElement = getPropertyNameOfBindingOrAssignmentElement;
+    function tryGetPropertyNameOfBindingOrAssignmentElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 191:
+                if (bindingElement.propertyName) {
+                    var propertyName = bindingElement.propertyName;
+                    if (ts.isPrivateIdentifier(propertyName)) {
+                        return ts.Debug.failBadSyntaxKind(propertyName);
+                    }
+                    return ts.isComputedPropertyName(propertyName) && isStringOrNumericLiteral(propertyName.expression)
+                        ? propertyName.expression
+                        : propertyName;
+                }
+                break;
+            case 281:
+                if (bindingElement.name) {
+                    var propertyName = bindingElement.name;
+                    if (ts.isPrivateIdentifier(propertyName)) {
+                        return ts.Debug.failBadSyntaxKind(propertyName);
+                    }
+                    return ts.isComputedPropertyName(propertyName) && isStringOrNumericLiteral(propertyName.expression)
+                        ? propertyName.expression
+                        : propertyName;
+                }
+                break;
+            case 283:
+                if (bindingElement.name && ts.isPrivateIdentifier(bindingElement.name)) {
+                    return ts.Debug.failBadSyntaxKind(bindingElement.name);
+                }
+                return bindingElement.name;
+        }
+        var target = getTargetOfBindingOrAssignmentElement(bindingElement);
+        if (target && ts.isPropertyName(target)) {
+            return target;
+        }
+    }
+    ts.tryGetPropertyNameOfBindingOrAssignmentElement = tryGetPropertyNameOfBindingOrAssignmentElement;
+    function isStringOrNumericLiteral(node) {
+        var kind = node.kind;
+        return kind === 10
+            || kind === 8;
+    }
+    function getElementsOfBindingOrAssignmentPattern(name) {
+        switch (name.kind) {
+            case 189:
+            case 190:
+            case 192:
+                return name.elements;
+            case 193:
+                return name.properties;
+        }
+    }
+    ts.getElementsOfBindingOrAssignmentPattern = getElementsOfBindingOrAssignmentPattern;
+    function convertToArrayAssignmentElement(element) {
+        if (ts.isBindingElement(element)) {
+            if (element.dotDotDotToken) {
+                ts.Debug.assertNode(element.name, ts.isIdentifier);
+                return ts.setOriginalNode(ts.setTextRange(ts.createSpread(element.name), element), element);
+            }
+            var expression = convertToAssignmentElementTarget(element.name);
+            return element.initializer
+                ? ts.setOriginalNode(ts.setTextRange(ts.createAssignment(expression, element.initializer), element), element)
+                : expression;
+        }
+        ts.Debug.assertNode(element, ts.isExpression);
+        return element;
+    }
+    ts.convertToArrayAssignmentElement = convertToArrayAssignmentElement;
+    function convertToObjectAssignmentElement(element) {
+        if (ts.isBindingElement(element)) {
+            if (element.dotDotDotToken) {
+                ts.Debug.assertNode(element.name, ts.isIdentifier);
+                return ts.setOriginalNode(ts.setTextRange(ts.createSpreadAssignment(element.name), element), element);
+            }
+            if (element.propertyName) {
+                var expression = convertToAssignmentElementTarget(element.name);
+                return ts.setOriginalNode(ts.setTextRange(ts.createPropertyAssignment(element.propertyName, element.initializer ? ts.createAssignment(expression, element.initializer) : expression), element), element);
+            }
+            ts.Debug.assertNode(element.name, ts.isIdentifier);
+            return ts.setOriginalNode(ts.setTextRange(ts.createShorthandPropertyAssignment(element.name, element.initializer), element), element);
+        }
+        ts.Debug.assertNode(element, ts.isObjectLiteralElementLike);
+        return element;
+    }
+    ts.convertToObjectAssignmentElement = convertToObjectAssignmentElement;
+    function convertToAssignmentPattern(node) {
+        switch (node.kind) {
+            case 190:
+            case 192:
+                return convertToArrayAssignmentPattern(node);
+            case 189:
+            case 193:
+                return convertToObjectAssignmentPattern(node);
+        }
+    }
+    ts.convertToAssignmentPattern = convertToAssignmentPattern;
+    function convertToObjectAssignmentPattern(node) {
+        if (ts.isObjectBindingPattern(node)) {
+            return ts.setOriginalNode(ts.setTextRange(ts.createObjectLiteral(ts.map(node.elements, convertToObjectAssignmentElement)), node), node);
+        }
+        ts.Debug.assertNode(node, ts.isObjectLiteralExpression);
+        return node;
+    }
+    ts.convertToObjectAssignmentPattern = convertToObjectAssignmentPattern;
+    function convertToArrayAssignmentPattern(node) {
+        if (ts.isArrayBindingPattern(node)) {
+            return ts.setOriginalNode(ts.setTextRange(ts.createArrayLiteral(ts.map(node.elements, convertToArrayAssignmentElement)), node), node);
+        }
+        ts.Debug.assertNode(node, ts.isArrayLiteralExpression);
+        return node;
+    }
+    ts.convertToArrayAssignmentPattern = convertToArrayAssignmentPattern;
+    function convertToAssignmentElementTarget(node) {
+        if (ts.isBindingPattern(node)) {
+            return convertToAssignmentPattern(node);
+        }
+        ts.Debug.assertNode(node, ts.isExpression);
+        return node;
+    }
+    ts.convertToAssignmentElementTarget = convertToAssignmentElementTarget;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var isTypeNodeOrTypeParameterDeclaration = ts.or(ts.isTypeNode, ts.isTypeParameterDeclaration);
+    function visitNode(node, visitor, test, lift) {
+        if (node === undefined || visitor === undefined) {
+            return node;
+        }
+        ts.aggregateTransformFlags(node);
+        var visited = visitor(node);
+        if (visited === node) {
+            return node;
+        }
+        var visitedNode;
+        if (visited === undefined) {
+            return undefined;
+        }
+        else if (ts.isArray(visited)) {
+            visitedNode = (lift || extractSingleNode)(visited);
+        }
+        else {
+            visitedNode = visited;
+        }
+        ts.Debug.assertNode(visitedNode, test);
+        ts.aggregateTransformFlags(visitedNode);
+        return visitedNode;
+    }
+    ts.visitNode = visitNode;
+    function visitNodes(nodes, visitor, test, start, count) {
+        if (nodes === undefined || visitor === undefined) {
+            return nodes;
+        }
+        var updated;
+        var length = nodes.length;
+        if (start === undefined || start < 0) {
+            start = 0;
+        }
+        if (count === undefined || count > length - start) {
+            count = length - start;
+        }
+        if (start > 0 || count < length) {
+            updated = ts.createNodeArray([], nodes.hasTrailingComma && start + count === length);
+        }
+        for (var i = 0; i < count; i++) {
+            var node = nodes[i + start];
+            ts.aggregateTransformFlags(node);
+            var visited = node !== undefined ? visitor(node) : undefined;
+            if (updated !== undefined || visited === undefined || visited !== node) {
+                if (updated === undefined) {
+                    updated = ts.createNodeArray(nodes.slice(0, i), nodes.hasTrailingComma);
+                    ts.setTextRange(updated, nodes);
+                }
+                if (visited) {
+                    if (ts.isArray(visited)) {
+                        for (var _i = 0, visited_1 = visited; _i < visited_1.length; _i++) {
+                            var visitedNode = visited_1[_i];
+                            ts.Debug.assertNode(visitedNode, test);
+                            ts.aggregateTransformFlags(visitedNode);
+                            updated.push(visitedNode);
+                        }
+                    }
+                    else {
+                        ts.Debug.assertNode(visited, test);
+                        ts.aggregateTransformFlags(visited);
+                        updated.push(visited);
+                    }
+                }
+            }
+        }
+        return updated || nodes;
+    }
+    ts.visitNodes = visitNodes;
+    function visitLexicalEnvironment(statements, visitor, context, start, ensureUseStrict) {
+        context.startLexicalEnvironment();
+        statements = visitNodes(statements, visitor, ts.isStatement, start);
+        if (ensureUseStrict)
+            statements = ts.ensureUseStrict(statements);
+        return ts.mergeLexicalEnvironment(statements, context.endLexicalEnvironment());
+    }
+    ts.visitLexicalEnvironment = visitLexicalEnvironment;
+    function visitParameterList(nodes, visitor, context, nodesVisitor) {
+        if (nodesVisitor === void 0) { nodesVisitor = visitNodes; }
+        var updated;
+        context.startLexicalEnvironment();
+        if (nodes) {
+            context.setLexicalEnvironmentFlags(1, true);
+            updated = nodesVisitor(nodes, visitor, ts.isParameterDeclaration);
+            if (context.getLexicalEnvironmentFlags() & 2 &&
+                ts.getEmitScriptTarget(context.getCompilerOptions()) >= 2) {
+                updated = addDefaultValueAssignmentsIfNeeded(updated, context);
+            }
+            context.setLexicalEnvironmentFlags(1, false);
+        }
+        context.suspendLexicalEnvironment();
+        return updated;
+    }
+    ts.visitParameterList = visitParameterList;
+    function addDefaultValueAssignmentsIfNeeded(parameters, context) {
+        var result;
+        for (var i = 0; i < parameters.length; i++) {
+            var parameter = parameters[i];
+            var updated = addDefaultValueAssignmentIfNeeded(parameter, context);
+            if (result || updated !== parameter) {
+                if (!result)
+                    result = parameters.slice(0, i);
+                result[i] = updated;
+            }
+        }
+        if (result) {
+            return ts.setTextRange(ts.createNodeArray(result, parameters.hasTrailingComma), parameters);
+        }
+        return parameters;
+    }
+    function addDefaultValueAssignmentIfNeeded(parameter, context) {
+        return parameter.dotDotDotToken ? parameter :
+            ts.isBindingPattern(parameter.name) ? addDefaultValueAssignmentForBindingPattern(parameter, context) :
+                parameter.initializer ? addDefaultValueAssignmentForInitializer(parameter, parameter.name, parameter.initializer, context) :
+                    parameter;
+    }
+    function addDefaultValueAssignmentForBindingPattern(parameter, context) {
+        context.addInitializationStatement(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+            ts.createVariableDeclaration(parameter.name, parameter.type, parameter.initializer ?
+                ts.createConditional(ts.createStrictEquality(ts.getGeneratedNameForNode(parameter), ts.createVoidZero()), parameter.initializer, ts.getGeneratedNameForNode(parameter)) :
+                ts.getGeneratedNameForNode(parameter)),
+        ])));
+        return ts.updateParameter(parameter, parameter.decorators, parameter.modifiers, parameter.dotDotDotToken, ts.getGeneratedNameForNode(parameter), parameter.questionToken, parameter.type, undefined);
+    }
+    function addDefaultValueAssignmentForInitializer(parameter, name, initializer, context) {
+        context.addInitializationStatement(ts.createIf(ts.createTypeCheck(ts.getSynthesizedClone(name), "undefined"), ts.setEmitFlags(ts.setTextRange(ts.createBlock([
+            ts.createExpressionStatement(ts.setEmitFlags(ts.setTextRange(ts.createAssignment(ts.setEmitFlags(ts.getMutableClone(name), 48), ts.setEmitFlags(initializer, 48 | ts.getEmitFlags(initializer) | 1536)), parameter), 1536))
+        ]), parameter), 1 | 32 | 384 | 1536)));
+        return ts.updateParameter(parameter, parameter.decorators, parameter.modifiers, parameter.dotDotDotToken, parameter.name, parameter.questionToken, parameter.type, undefined);
+    }
+    function visitFunctionBody(node, visitor, context) {
+        context.resumeLexicalEnvironment();
+        var updated = visitNode(node, visitor, ts.isConciseBody);
+        var declarations = context.endLexicalEnvironment();
+        if (ts.some(declarations)) {
+            var block = ts.convertToFunctionBody(updated);
+            var statements = ts.mergeLexicalEnvironment(block.statements, declarations);
+            return ts.updateBlock(block, statements);
+        }
+        return updated;
+    }
+    ts.visitFunctionBody = visitFunctionBody;
+    function visitEachChild(node, visitor, context, nodesVisitor, tokenVisitor) {
+        if (nodesVisitor === void 0) { nodesVisitor = visitNodes; }
+        if (node === undefined) {
+            return undefined;
+        }
+        var kind = node.kind;
+        if ((kind > 0 && kind <= 152) || kind === 183) {
+            return node;
+        }
+        switch (kind) {
+            case 75:
+                return ts.updateIdentifier(node, nodesVisitor(node.typeArguments, visitor, isTypeNodeOrTypeParameterDeclaration));
+            case 153:
+                return ts.updateQualifiedName(node, visitNode(node.left, visitor, ts.isEntityName), visitNode(node.right, visitor, ts.isIdentifier));
+            case 154:
+                return ts.updateComputedPropertyName(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 155:
+                return ts.updateTypeParameterDeclaration(node, visitNode(node.name, visitor, ts.isIdentifier), visitNode(node.constraint, visitor, ts.isTypeNode), visitNode(node.default, visitor, ts.isTypeNode));
+            case 156:
+                return ts.updateParameter(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.dotDotDotToken, tokenVisitor, ts.isToken), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.questionToken, tokenVisitor, ts.isToken), visitNode(node.type, visitor, ts.isTypeNode), visitNode(node.initializer, visitor, ts.isExpression));
+            case 157:
+                return ts.updateDecorator(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 158:
+                return ts.updatePropertySignature(node, nodesVisitor(node.modifiers, visitor, ts.isToken), visitNode(node.name, visitor, ts.isPropertyName), visitNode(node.questionToken, tokenVisitor, ts.isToken), visitNode(node.type, visitor, ts.isTypeNode), visitNode(node.initializer, visitor, ts.isExpression));
+            case 159:
+                return ts.updateProperty(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNode(node.questionToken || node.exclamationToken, tokenVisitor, ts.isToken), visitNode(node.type, visitor, ts.isTypeNode), visitNode(node.initializer, visitor, ts.isExpression));
+            case 160:
+                return ts.updateMethodSignature(node, nodesVisitor(node.typeParameters, visitor, ts.isTypeParameterDeclaration), nodesVisitor(node.parameters, visitor, ts.isParameterDeclaration), visitNode(node.type, visitor, ts.isTypeNode), visitNode(node.name, visitor, ts.isPropertyName), visitNode(node.questionToken, tokenVisitor, ts.isToken));
+            case 161:
+                return ts.updateMethod(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.asteriskToken, tokenVisitor, ts.isToken), visitNode(node.name, visitor, ts.isPropertyName), visitNode(node.questionToken, tokenVisitor, ts.isToken), nodesVisitor(node.typeParameters, visitor, ts.isTypeParameterDeclaration), visitParameterList(node.parameters, visitor, context, nodesVisitor), visitNode(node.type, visitor, ts.isTypeNode), visitFunctionBody(node.body, visitor, context));
+            case 162:
+                return ts.updateConstructor(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitParameterList(node.parameters, visitor, context, nodesVisitor), visitFunctionBody(node.body, visitor, context));
+            case 163:
+                return ts.updateGetAccessor(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitParameterList(node.parameters, visitor, context, nodesVisitor), visitNode(node.type, visitor, ts.isTypeNode), visitFunctionBody(node.body, visitor, context));
+            case 164:
+                return ts.updateSetAccessor(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitParameterList(node.parameters, visitor, context, nodesVisitor), visitFunctionBody(node.body, visitor, context));
+            case 165:
+                return ts.updateCallSignature(node, nodesVisitor(node.typeParameters, visitor, ts.isTypeParameterDeclaration), nodesVisitor(node.parameters, visitor, ts.isParameterDeclaration), visitNode(node.type, visitor, ts.isTypeNode));
+            case 166:
+                return ts.updateConstructSignature(node, nodesVisitor(node.typeParameters, visitor, ts.isTypeParameterDeclaration), nodesVisitor(node.parameters, visitor, ts.isParameterDeclaration), visitNode(node.type, visitor, ts.isTypeNode));
+            case 167:
+                return ts.updateIndexSignature(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), nodesVisitor(node.parameters, visitor, ts.isParameterDeclaration), visitNode(node.type, visitor, ts.isTypeNode));
+            case 168:
+                return ts.updateTypePredicateNodeWithModifier(node, visitNode(node.assertsModifier, visitor), visitNode(node.parameterName, visitor), visitNode(node.type, visitor, ts.isTypeNode));
+            case 169:
+                return ts.updateTypeReferenceNode(node, visitNode(node.typeName, visitor, ts.isEntityName), nodesVisitor(node.typeArguments, visitor, ts.isTypeNode));
+            case 170:
+                return ts.updateFunctionTypeNode(node, nodesVisitor(node.typeParameters, visitor, ts.isTypeParameterDeclaration), nodesVisitor(node.parameters, visitor, ts.isParameterDeclaration), visitNode(node.type, visitor, ts.isTypeNode));
+            case 171:
+                return ts.updateConstructorTypeNode(node, nodesVisitor(node.typeParameters, visitor, ts.isTypeParameterDeclaration), nodesVisitor(node.parameters, visitor, ts.isParameterDeclaration), visitNode(node.type, visitor, ts.isTypeNode));
+            case 172:
+                return ts.updateTypeQueryNode(node, visitNode(node.exprName, visitor, ts.isEntityName));
+            case 173:
+                return ts.updateTypeLiteralNode(node, nodesVisitor(node.members, visitor, ts.isTypeElement));
+            case 174:
+                return ts.updateArrayTypeNode(node, visitNode(node.elementType, visitor, ts.isTypeNode));
+            case 175:
+                return ts.updateTupleTypeNode(node, nodesVisitor(node.elementTypes, visitor, ts.isTypeNode));
+            case 176:
+                return ts.updateOptionalTypeNode(node, visitNode(node.type, visitor, ts.isTypeNode));
+            case 177:
+                return ts.updateRestTypeNode(node, visitNode(node.type, visitor, ts.isTypeNode));
+            case 178:
+                return ts.updateUnionTypeNode(node, nodesVisitor(node.types, visitor, ts.isTypeNode));
+            case 179:
+                return ts.updateIntersectionTypeNode(node, nodesVisitor(node.types, visitor, ts.isTypeNode));
+            case 180:
+                return ts.updateConditionalTypeNode(node, visitNode(node.checkType, visitor, ts.isTypeNode), visitNode(node.extendsType, visitor, ts.isTypeNode), visitNode(node.trueType, visitor, ts.isTypeNode), visitNode(node.falseType, visitor, ts.isTypeNode));
+            case 181:
+                return ts.updateInferTypeNode(node, visitNode(node.typeParameter, visitor, ts.isTypeParameterDeclaration));
+            case 188:
+                return ts.updateImportTypeNode(node, visitNode(node.argument, visitor, ts.isTypeNode), visitNode(node.qualifier, visitor, ts.isEntityName), visitNodes(node.typeArguments, visitor, ts.isTypeNode), node.isTypeOf);
+            case 182:
+                return ts.updateParenthesizedType(node, visitNode(node.type, visitor, ts.isTypeNode));
+            case 184:
+                return ts.updateTypeOperatorNode(node, visitNode(node.type, visitor, ts.isTypeNode));
+            case 185:
+                return ts.updateIndexedAccessTypeNode(node, visitNode(node.objectType, visitor, ts.isTypeNode), visitNode(node.indexType, visitor, ts.isTypeNode));
+            case 186:
+                return ts.updateMappedTypeNode(node, visitNode(node.readonlyToken, tokenVisitor, ts.isToken), visitNode(node.typeParameter, visitor, ts.isTypeParameterDeclaration), visitNode(node.questionToken, tokenVisitor, ts.isToken), visitNode(node.type, visitor, ts.isTypeNode));
+            case 187:
+                return ts.updateLiteralTypeNode(node, visitNode(node.literal, visitor, ts.isExpression));
+            case 189:
+                return ts.updateObjectBindingPattern(node, nodesVisitor(node.elements, visitor, ts.isBindingElement));
+            case 190:
+                return ts.updateArrayBindingPattern(node, nodesVisitor(node.elements, visitor, ts.isArrayBindingElement));
+            case 191:
+                return ts.updateBindingElement(node, visitNode(node.dotDotDotToken, tokenVisitor, ts.isToken), visitNode(node.propertyName, visitor, ts.isPropertyName), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.initializer, visitor, ts.isExpression));
+            case 192:
+                return ts.updateArrayLiteral(node, nodesVisitor(node.elements, visitor, ts.isExpression));
+            case 193:
+                return ts.updateObjectLiteral(node, nodesVisitor(node.properties, visitor, ts.isObjectLiteralElementLike));
+            case 194:
+                if (node.flags & 32) {
+                    return ts.updatePropertyAccessChain(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.questionDotToken, tokenVisitor, ts.isToken), visitNode(node.name, visitor, ts.isIdentifier));
+                }
+                return ts.updatePropertyAccess(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.name, visitor, ts.isIdentifierOrPrivateIdentifier));
+            case 195:
+                if (node.flags & 32) {
+                    return ts.updateElementAccessChain(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.questionDotToken, tokenVisitor, ts.isToken), visitNode(node.argumentExpression, visitor, ts.isExpression));
+                }
+                return ts.updateElementAccess(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.argumentExpression, visitor, ts.isExpression));
+            case 196:
+                if (node.flags & 32) {
+                    return ts.updateCallChain(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.questionDotToken, tokenVisitor, ts.isToken), nodesVisitor(node.typeArguments, visitor, ts.isTypeNode), nodesVisitor(node.arguments, visitor, ts.isExpression));
+                }
+                return ts.updateCall(node, visitNode(node.expression, visitor, ts.isExpression), nodesVisitor(node.typeArguments, visitor, ts.isTypeNode), nodesVisitor(node.arguments, visitor, ts.isExpression));
+            case 197:
+                return ts.updateNew(node, visitNode(node.expression, visitor, ts.isExpression), nodesVisitor(node.typeArguments, visitor, ts.isTypeNode), nodesVisitor(node.arguments, visitor, ts.isExpression));
+            case 198:
+                return ts.updateTaggedTemplate(node, visitNode(node.tag, visitor, ts.isExpression), visitNodes(node.typeArguments, visitor, ts.isExpression), visitNode(node.template, visitor, ts.isTemplateLiteral));
+            case 199:
+                return ts.updateTypeAssertion(node, visitNode(node.type, visitor, ts.isTypeNode), visitNode(node.expression, visitor, ts.isExpression));
+            case 200:
+                return ts.updateParen(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 201:
+                return ts.updateFunctionExpression(node, nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.asteriskToken, tokenVisitor, ts.isToken), visitNode(node.name, visitor, ts.isIdentifier), nodesVisitor(node.typeParameters, visitor, ts.isTypeParameterDeclaration), visitParameterList(node.parameters, visitor, context, nodesVisitor), visitNode(node.type, visitor, ts.isTypeNode), visitFunctionBody(node.body, visitor, context));
+            case 202:
+                return ts.updateArrowFunction(node, nodesVisitor(node.modifiers, visitor, ts.isModifier), nodesVisitor(node.typeParameters, visitor, ts.isTypeParameterDeclaration), visitParameterList(node.parameters, visitor, context, nodesVisitor), visitNode(node.type, visitor, ts.isTypeNode), visitNode(node.equalsGreaterThanToken, tokenVisitor, ts.isToken), visitFunctionBody(node.body, visitor, context));
+            case 203:
+                return ts.updateDelete(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 204:
+                return ts.updateTypeOf(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 205:
+                return ts.updateVoid(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 206:
+                return ts.updateAwait(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 207:
+                return ts.updatePrefix(node, visitNode(node.operand, visitor, ts.isExpression));
+            case 208:
+                return ts.updatePostfix(node, visitNode(node.operand, visitor, ts.isExpression));
+            case 209:
+                return ts.updateBinary(node, visitNode(node.left, visitor, ts.isExpression), visitNode(node.right, visitor, ts.isExpression), visitNode(node.operatorToken, tokenVisitor, ts.isToken));
+            case 210:
+                return ts.updateConditional(node, visitNode(node.condition, visitor, ts.isExpression), visitNode(node.questionToken, tokenVisitor, ts.isToken), visitNode(node.whenTrue, visitor, ts.isExpression), visitNode(node.colonToken, tokenVisitor, ts.isToken), visitNode(node.whenFalse, visitor, ts.isExpression));
+            case 211:
+                return ts.updateTemplateExpression(node, visitNode(node.head, visitor, ts.isTemplateHead), nodesVisitor(node.templateSpans, visitor, ts.isTemplateSpan));
+            case 212:
+                return ts.updateYield(node, visitNode(node.asteriskToken, tokenVisitor, ts.isToken), visitNode(node.expression, visitor, ts.isExpression));
+            case 213:
+                return ts.updateSpread(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 214:
+                return ts.updateClassExpression(node, nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isIdentifier), nodesVisitor(node.typeParameters, visitor, ts.isTypeParameterDeclaration), nodesVisitor(node.heritageClauses, visitor, ts.isHeritageClause), nodesVisitor(node.members, visitor, ts.isClassElement));
+            case 216:
+                return ts.updateExpressionWithTypeArguments(node, nodesVisitor(node.typeArguments, visitor, ts.isTypeNode), visitNode(node.expression, visitor, ts.isExpression));
+            case 217:
+                return ts.updateAsExpression(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.type, visitor, ts.isTypeNode));
+            case 218:
+                return ts.updateNonNullExpression(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 219:
+                return ts.updateMetaProperty(node, visitNode(node.name, visitor, ts.isIdentifier));
+            case 221:
+                return ts.updateTemplateSpan(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.literal, visitor, ts.isTemplateMiddleOrTemplateTail));
+            case 223:
+                return ts.updateBlock(node, nodesVisitor(node.statements, visitor, ts.isStatement));
+            case 225:
+                return ts.updateVariableStatement(node, nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.declarationList, visitor, ts.isVariableDeclarationList));
+            case 226:
+                return ts.updateExpressionStatement(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 227:
+                return ts.updateIf(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.thenStatement, visitor, ts.isStatement, ts.liftToBlock), visitNode(node.elseStatement, visitor, ts.isStatement, ts.liftToBlock));
+            case 228:
+                return ts.updateDo(node, visitNode(node.statement, visitor, ts.isStatement, ts.liftToBlock), visitNode(node.expression, visitor, ts.isExpression));
+            case 229:
+                return ts.updateWhile(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.statement, visitor, ts.isStatement, ts.liftToBlock));
+            case 230:
+                return ts.updateFor(node, visitNode(node.initializer, visitor, ts.isForInitializer), visitNode(node.condition, visitor, ts.isExpression), visitNode(node.incrementor, visitor, ts.isExpression), visitNode(node.statement, visitor, ts.isStatement, ts.liftToBlock));
+            case 231:
+                return ts.updateForIn(node, visitNode(node.initializer, visitor, ts.isForInitializer), visitNode(node.expression, visitor, ts.isExpression), visitNode(node.statement, visitor, ts.isStatement, ts.liftToBlock));
+            case 232:
+                return ts.updateForOf(node, visitNode(node.awaitModifier, tokenVisitor, ts.isToken), visitNode(node.initializer, visitor, ts.isForInitializer), visitNode(node.expression, visitor, ts.isExpression), visitNode(node.statement, visitor, ts.isStatement, ts.liftToBlock));
+            case 233:
+                return ts.updateContinue(node, visitNode(node.label, visitor, ts.isIdentifier));
+            case 234:
+                return ts.updateBreak(node, visitNode(node.label, visitor, ts.isIdentifier));
+            case 235:
+                return ts.updateReturn(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 236:
+                return ts.updateWith(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.statement, visitor, ts.isStatement, ts.liftToBlock));
+            case 237:
+                return ts.updateSwitch(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.caseBlock, visitor, ts.isCaseBlock));
+            case 238:
+                return ts.updateLabel(node, visitNode(node.label, visitor, ts.isIdentifier), visitNode(node.statement, visitor, ts.isStatement, ts.liftToBlock));
+            case 239:
+                return ts.updateThrow(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 240:
+                return ts.updateTry(node, visitNode(node.tryBlock, visitor, ts.isBlock), visitNode(node.catchClause, visitor, ts.isCatchClause), visitNode(node.finallyBlock, visitor, ts.isBlock));
+            case 242:
+                return ts.updateTypeScriptVariableDeclaration(node, visitNode(node.name, visitor, ts.isBindingName), visitNode(node.exclamationToken, tokenVisitor, ts.isToken), visitNode(node.type, visitor, ts.isTypeNode), visitNode(node.initializer, visitor, ts.isExpression));
+            case 243:
+                return ts.updateVariableDeclarationList(node, nodesVisitor(node.declarations, visitor, ts.isVariableDeclaration));
+            case 244:
+                return ts.updateFunctionDeclaration(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.asteriskToken, tokenVisitor, ts.isToken), visitNode(node.name, visitor, ts.isIdentifier), nodesVisitor(node.typeParameters, visitor, ts.isTypeParameterDeclaration), visitParameterList(node.parameters, visitor, context, nodesVisitor), visitNode(node.type, visitor, ts.isTypeNode), visitFunctionBody(node.body, visitor, context));
+            case 245:
+                return ts.updateClassDeclaration(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isIdentifier), nodesVisitor(node.typeParameters, visitor, ts.isTypeParameterDeclaration), nodesVisitor(node.heritageClauses, visitor, ts.isHeritageClause), nodesVisitor(node.members, visitor, ts.isClassElement));
+            case 246:
+                return ts.updateInterfaceDeclaration(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isIdentifier), nodesVisitor(node.typeParameters, visitor, ts.isTypeParameterDeclaration), nodesVisitor(node.heritageClauses, visitor, ts.isHeritageClause), nodesVisitor(node.members, visitor, ts.isTypeElement));
+            case 247:
+                return ts.updateTypeAliasDeclaration(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isIdentifier), nodesVisitor(node.typeParameters, visitor, ts.isTypeParameterDeclaration), visitNode(node.type, visitor, ts.isTypeNode));
+            case 248:
+                return ts.updateEnumDeclaration(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isIdentifier), nodesVisitor(node.members, visitor, ts.isEnumMember));
+            case 249:
+                return ts.updateModuleDeclaration(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isIdentifier), visitNode(node.body, visitor, ts.isModuleBody));
+            case 250:
+                return ts.updateModuleBlock(node, nodesVisitor(node.statements, visitor, ts.isStatement));
+            case 251:
+                return ts.updateCaseBlock(node, nodesVisitor(node.clauses, visitor, ts.isCaseOrDefaultClause));
+            case 252:
+                return ts.updateNamespaceExportDeclaration(node, visitNode(node.name, visitor, ts.isIdentifier));
+            case 253:
+                return ts.updateImportEqualsDeclaration(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isIdentifier), visitNode(node.moduleReference, visitor, ts.isModuleReference));
+            case 254:
+                return ts.updateImportDeclaration(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.importClause, visitor, ts.isImportClause), visitNode(node.moduleSpecifier, visitor, ts.isExpression));
+            case 255:
+                return ts.updateImportClause(node, visitNode(node.name, visitor, ts.isIdentifier), visitNode(node.namedBindings, visitor, ts.isNamedImportBindings), node.isTypeOnly);
+            case 256:
+                return ts.updateNamespaceImport(node, visitNode(node.name, visitor, ts.isIdentifier));
+            case 262:
+                return ts.updateNamespaceExport(node, visitNode(node.name, visitor, ts.isIdentifier));
+            case 257:
+                return ts.updateNamedImports(node, nodesVisitor(node.elements, visitor, ts.isImportSpecifier));
+            case 258:
+                return ts.updateImportSpecifier(node, visitNode(node.propertyName, visitor, ts.isIdentifier), visitNode(node.name, visitor, ts.isIdentifier));
+            case 259:
+                return ts.updateExportAssignment(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.expression, visitor, ts.isExpression));
+            case 260:
+                return ts.updateExportDeclaration(node, nodesVisitor(node.decorators, visitor, ts.isDecorator), nodesVisitor(node.modifiers, visitor, ts.isModifier), visitNode(node.exportClause, visitor, ts.isNamedExportBindings), visitNode(node.moduleSpecifier, visitor, ts.isExpression), node.isTypeOnly);
+            case 261:
+                return ts.updateNamedExports(node, nodesVisitor(node.elements, visitor, ts.isExportSpecifier));
+            case 263:
+                return ts.updateExportSpecifier(node, visitNode(node.propertyName, visitor, ts.isIdentifier), visitNode(node.name, visitor, ts.isIdentifier));
+            case 265:
+                return ts.updateExternalModuleReference(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 266:
+                return ts.updateJsxElement(node, visitNode(node.openingElement, visitor, ts.isJsxOpeningElement), nodesVisitor(node.children, visitor, ts.isJsxChild), visitNode(node.closingElement, visitor, ts.isJsxClosingElement));
+            case 267:
+                return ts.updateJsxSelfClosingElement(node, visitNode(node.tagName, visitor, ts.isJsxTagNameExpression), nodesVisitor(node.typeArguments, visitor, ts.isTypeNode), visitNode(node.attributes, visitor, ts.isJsxAttributes));
+            case 268:
+                return ts.updateJsxOpeningElement(node, visitNode(node.tagName, visitor, ts.isJsxTagNameExpression), nodesVisitor(node.typeArguments, visitor, ts.isTypeNode), visitNode(node.attributes, visitor, ts.isJsxAttributes));
+            case 269:
+                return ts.updateJsxClosingElement(node, visitNode(node.tagName, visitor, ts.isJsxTagNameExpression));
+            case 270:
+                return ts.updateJsxFragment(node, visitNode(node.openingFragment, visitor, ts.isJsxOpeningFragment), nodesVisitor(node.children, visitor, ts.isJsxChild), visitNode(node.closingFragment, visitor, ts.isJsxClosingFragment));
+            case 273:
+                return ts.updateJsxAttribute(node, visitNode(node.name, visitor, ts.isIdentifier), visitNode(node.initializer, visitor, ts.isStringLiteralOrJsxExpression));
+            case 274:
+                return ts.updateJsxAttributes(node, nodesVisitor(node.properties, visitor, ts.isJsxAttributeLike));
+            case 275:
+                return ts.updateJsxSpreadAttribute(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 276:
+                return ts.updateJsxExpression(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 277:
+                return ts.updateCaseClause(node, visitNode(node.expression, visitor, ts.isExpression), nodesVisitor(node.statements, visitor, ts.isStatement));
+            case 278:
+                return ts.updateDefaultClause(node, nodesVisitor(node.statements, visitor, ts.isStatement));
+            case 279:
+                return ts.updateHeritageClause(node, nodesVisitor(node.types, visitor, ts.isExpressionWithTypeArguments));
+            case 280:
+                return ts.updateCatchClause(node, visitNode(node.variableDeclaration, visitor, ts.isVariableDeclaration), visitNode(node.block, visitor, ts.isBlock));
+            case 281:
+                return ts.updatePropertyAssignment(node, visitNode(node.name, visitor, ts.isPropertyName), visitNode(node.initializer, visitor, ts.isExpression));
+            case 282:
+                return ts.updateShorthandPropertyAssignment(node, visitNode(node.name, visitor, ts.isIdentifier), visitNode(node.objectAssignmentInitializer, visitor, ts.isExpression));
+            case 283:
+                return ts.updateSpreadAssignment(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 284:
+                return ts.updateEnumMember(node, visitNode(node.name, visitor, ts.isPropertyName), visitNode(node.initializer, visitor, ts.isExpression));
+            case 290:
+                return ts.updateSourceFileNode(node, visitLexicalEnvironment(node.statements, visitor, context));
+            case 326:
+                return ts.updatePartiallyEmittedExpression(node, visitNode(node.expression, visitor, ts.isExpression));
+            case 327:
+                return ts.updateCommaList(node, nodesVisitor(node.elements, visitor, ts.isExpression));
+            default:
+                return node;
+        }
+    }
+    ts.visitEachChild = visitEachChild;
+    function extractSingleNode(nodes) {
+        ts.Debug.assert(nodes.length <= 1, "Too many nodes written to output.");
+        return ts.singleOrUndefined(nodes);
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function reduceNode(node, f, initial) {
+        return node ? f(initial, node) : initial;
+    }
+    function reduceNodeArray(nodes, f, initial) {
+        return nodes ? f(initial, nodes) : initial;
+    }
+    function reduceEachChild(node, initial, cbNode, cbNodeArray) {
+        if (node === undefined) {
+            return initial;
+        }
+        var reduceNodes = cbNodeArray ? reduceNodeArray : ts.reduceLeft;
+        var cbNodes = cbNodeArray || cbNode;
+        var kind = node.kind;
+        if ((kind > 0 && kind <= 152)) {
+            return initial;
+        }
+        if ((kind >= 168 && kind <= 187)) {
+            return initial;
+        }
+        var result = initial;
+        switch (node.kind) {
+            case 222:
+            case 224:
+            case 215:
+            case 241:
+            case 325:
+                break;
+            case 153:
+                result = reduceNode(node.left, cbNode, result);
+                result = reduceNode(node.right, cbNode, result);
+                break;
+            case 154:
+                result = reduceNode(node.expression, cbNode, result);
+                break;
+            case 156:
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                break;
+            case 157:
+                result = reduceNode(node.expression, cbNode, result);
+                break;
+            case 158:
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.questionToken, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                break;
+            case 159:
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                break;
+            case 161:
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
+                break;
+            case 162:
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.body, cbNode, result);
+                break;
+            case 163:
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
+                break;
+            case 164:
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.body, cbNode, result);
+                break;
+            case 189:
+            case 190:
+                result = reduceNodes(node.elements, cbNodes, result);
+                break;
+            case 191:
+                result = reduceNode(node.propertyName, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                break;
+            case 192:
+                result = reduceNodes(node.elements, cbNodes, result);
+                break;
+            case 193:
+                result = reduceNodes(node.properties, cbNodes, result);
+                break;
+            case 194:
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
+                break;
+            case 195:
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.argumentExpression, cbNode, result);
+                break;
+            case 196:
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
+                result = reduceNodes(node.arguments, cbNodes, result);
+                break;
+            case 197:
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
+                result = reduceNodes(node.arguments, cbNodes, result);
+                break;
+            case 198:
+                result = reduceNode(node.tag, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
+                result = reduceNode(node.template, cbNode, result);
+                break;
+            case 199:
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
+                break;
+            case 201:
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
+                break;
+            case 202:
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
+                break;
+            case 200:
+            case 203:
+            case 204:
+            case 205:
+            case 206:
+            case 212:
+            case 213:
+            case 218:
+                result = reduceNode(node.expression, cbNode, result);
+                break;
+            case 207:
+            case 208:
+                result = reduceNode(node.operand, cbNode, result);
+                break;
+            case 209:
+                result = reduceNode(node.left, cbNode, result);
+                result = reduceNode(node.right, cbNode, result);
+                break;
+            case 210:
+                result = reduceNode(node.condition, cbNode, result);
+                result = reduceNode(node.whenTrue, cbNode, result);
+                result = reduceNode(node.whenFalse, cbNode, result);
+                break;
+            case 211:
+                result = reduceNode(node.head, cbNode, result);
+                result = reduceNodes(node.templateSpans, cbNodes, result);
+                break;
+            case 214:
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.heritageClauses, cbNodes, result);
+                result = reduceNodes(node.members, cbNodes, result);
+                break;
+            case 216:
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
+                break;
+            case 217:
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                break;
+            case 221:
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.literal, cbNode, result);
+                break;
+            case 223:
+                result = reduceNodes(node.statements, cbNodes, result);
+                break;
+            case 225:
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.declarationList, cbNode, result);
+                break;
+            case 226:
+                result = reduceNode(node.expression, cbNode, result);
+                break;
+            case 227:
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.thenStatement, cbNode, result);
+                result = reduceNode(node.elseStatement, cbNode, result);
+                break;
+            case 228:
+                result = reduceNode(node.statement, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
+                break;
+            case 229:
+            case 236:
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
+                break;
+            case 230:
+                result = reduceNode(node.initializer, cbNode, result);
+                result = reduceNode(node.condition, cbNode, result);
+                result = reduceNode(node.incrementor, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
+                break;
+            case 231:
+            case 232:
+                result = reduceNode(node.initializer, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
+                break;
+            case 235:
+            case 239:
+                result = reduceNode(node.expression, cbNode, result);
+                break;
+            case 237:
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.caseBlock, cbNode, result);
+                break;
+            case 238:
+                result = reduceNode(node.label, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
+                break;
+            case 240:
+                result = reduceNode(node.tryBlock, cbNode, result);
+                result = reduceNode(node.catchClause, cbNode, result);
+                result = reduceNode(node.finallyBlock, cbNode, result);
+                break;
+            case 242:
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                break;
+            case 243:
+                result = reduceNodes(node.declarations, cbNodes, result);
+                break;
+            case 244:
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
+                break;
+            case 245:
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.heritageClauses, cbNodes, result);
+                result = reduceNodes(node.members, cbNodes, result);
+                break;
+            case 248:
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.members, cbNodes, result);
+                break;
+            case 249:
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
+                break;
+            case 250:
+                result = reduceNodes(node.statements, cbNodes, result);
+                break;
+            case 251:
+                result = reduceNodes(node.clauses, cbNodes, result);
+                break;
+            case 253:
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.moduleReference, cbNode, result);
+                break;
+            case 254:
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.importClause, cbNode, result);
+                result = reduceNode(node.moduleSpecifier, cbNode, result);
+                break;
+            case 255:
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.namedBindings, cbNode, result);
+                break;
+            case 256:
+                result = reduceNode(node.name, cbNode, result);
+                break;
+            case 262:
+                result = reduceNode(node.name, cbNode, result);
+                break;
+            case 257:
+            case 261:
+                result = reduceNodes(node.elements, cbNodes, result);
+                break;
+            case 258:
+            case 263:
+                result = reduceNode(node.propertyName, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
+                break;
+            case 259:
+                result = ts.reduceLeft(node.decorators, cbNode, result);
+                result = ts.reduceLeft(node.modifiers, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
+                break;
+            case 260:
+                result = ts.reduceLeft(node.decorators, cbNode, result);
+                result = ts.reduceLeft(node.modifiers, cbNode, result);
+                result = reduceNode(node.exportClause, cbNode, result);
+                result = reduceNode(node.moduleSpecifier, cbNode, result);
+                break;
+            case 265:
+                result = reduceNode(node.expression, cbNode, result);
+                break;
+            case 266:
+                result = reduceNode(node.openingElement, cbNode, result);
+                result = ts.reduceLeft(node.children, cbNode, result);
+                result = reduceNode(node.closingElement, cbNode, result);
+                break;
+            case 270:
+                result = reduceNode(node.openingFragment, cbNode, result);
+                result = ts.reduceLeft(node.children, cbNode, result);
+                result = reduceNode(node.closingFragment, cbNode, result);
+                break;
+            case 267:
+            case 268:
+                result = reduceNode(node.tagName, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNode, result);
+                result = reduceNode(node.attributes, cbNode, result);
+                break;
+            case 274:
+                result = reduceNodes(node.properties, cbNodes, result);
+                break;
+            case 269:
+                result = reduceNode(node.tagName, cbNode, result);
+                break;
+            case 273:
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                break;
+            case 275:
+                result = reduceNode(node.expression, cbNode, result);
+                break;
+            case 276:
+                result = reduceNode(node.expression, cbNode, result);
+                break;
+            case 277:
+                result = reduceNode(node.expression, cbNode, result);
+            case 278:
+                result = reduceNodes(node.statements, cbNodes, result);
+                break;
+            case 279:
+                result = reduceNodes(node.types, cbNodes, result);
+                break;
+            case 280:
+                result = reduceNode(node.variableDeclaration, cbNode, result);
+                result = reduceNode(node.block, cbNode, result);
+                break;
+            case 281:
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                break;
+            case 282:
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.objectAssignmentInitializer, cbNode, result);
+                break;
+            case 283:
+                result = reduceNode(node.expression, cbNode, result);
+                break;
+            case 284:
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                break;
+            case 290:
+                result = reduceNodes(node.statements, cbNodes, result);
+                break;
+            case 326:
+                result = reduceNode(node.expression, cbNode, result);
+                break;
+            case 327:
+                result = reduceNodes(node.elements, cbNodes, result);
+                break;
+            default:
+                break;
+        }
+        return result;
+    }
+    ts.reduceEachChild = reduceEachChild;
+    function findSpanEnd(array, test, start) {
+        var i = start;
+        while (i < array.length && test(array[i])) {
+            i++;
+        }
+        return i;
+    }
+    function mergeLexicalEnvironment(statements, declarations) {
+        if (!ts.some(declarations)) {
+            return statements;
+        }
+        var leftStandardPrologueEnd = findSpanEnd(statements, ts.isPrologueDirective, 0);
+        var leftHoistedFunctionsEnd = findSpanEnd(statements, ts.isHoistedFunction, leftStandardPrologueEnd);
+        var leftHoistedVariablesEnd = findSpanEnd(statements, ts.isHoistedVariableStatement, leftHoistedFunctionsEnd);
+        var rightStandardPrologueEnd = findSpanEnd(declarations, ts.isPrologueDirective, 0);
+        var rightHoistedFunctionsEnd = findSpanEnd(declarations, ts.isHoistedFunction, rightStandardPrologueEnd);
+        var rightHoistedVariablesEnd = findSpanEnd(declarations, ts.isHoistedVariableStatement, rightHoistedFunctionsEnd);
+        var rightCustomPrologueEnd = findSpanEnd(declarations, ts.isCustomPrologue, rightHoistedVariablesEnd);
+        ts.Debug.assert(rightCustomPrologueEnd === declarations.length, "Expected declarations to be valid standard or custom prologues");
+        var left = ts.isNodeArray(statements) ? statements.slice() : statements;
+        if (rightCustomPrologueEnd > rightHoistedVariablesEnd) {
+            left.splice.apply(left, __spreadArrays([leftHoistedVariablesEnd, 0], declarations.slice(rightHoistedVariablesEnd, rightCustomPrologueEnd)));
+        }
+        if (rightHoistedVariablesEnd > rightHoistedFunctionsEnd) {
+            left.splice.apply(left, __spreadArrays([leftHoistedFunctionsEnd, 0], declarations.slice(rightHoistedFunctionsEnd, rightHoistedVariablesEnd)));
+        }
+        if (rightHoistedFunctionsEnd > rightStandardPrologueEnd) {
+            left.splice.apply(left, __spreadArrays([leftStandardPrologueEnd, 0], declarations.slice(rightStandardPrologueEnd, rightHoistedFunctionsEnd)));
+        }
+        if (rightStandardPrologueEnd > 0) {
+            if (leftStandardPrologueEnd === 0) {
+                left.splice.apply(left, __spreadArrays([0, 0], declarations.slice(0, rightStandardPrologueEnd)));
+            }
+            else {
+                var leftPrologues = ts.createMap();
+                for (var i = 0; i < leftStandardPrologueEnd; i++) {
+                    var leftPrologue = statements[i];
+                    leftPrologues.set(leftPrologue.expression.text, true);
+                }
+                for (var i = rightStandardPrologueEnd - 1; i >= 0; i--) {
+                    var rightPrologue = declarations[i];
+                    if (!leftPrologues.has(rightPrologue.expression.text)) {
+                        left.unshift(rightPrologue);
+                    }
+                }
+            }
+        }
+        if (ts.isNodeArray(statements)) {
+            return ts.setTextRange(ts.createNodeArray(left, statements.hasTrailingComma), statements);
+        }
+        return statements;
+    }
+    ts.mergeLexicalEnvironment = mergeLexicalEnvironment;
+    function liftToBlock(nodes) {
+        ts.Debug.assert(ts.every(nodes, ts.isStatement), "Cannot lift nodes to a Block.");
+        return ts.singleOrUndefined(nodes) || ts.createBlock(nodes);
+    }
+    ts.liftToBlock = liftToBlock;
+    function aggregateTransformFlags(node) {
+        aggregateTransformFlagsForNode(node);
+        return node;
+    }
+    ts.aggregateTransformFlags = aggregateTransformFlags;
+    function aggregateTransformFlagsForNode(node) {
+        if (node === undefined) {
+            return 0;
+        }
+        if (node.transformFlags & 536870912) {
+            return node.transformFlags & ~ts.getTransformFlagsSubtreeExclusions(node.kind);
+        }
+        var subtreeFlags = aggregateTransformFlagsForSubtree(node);
+        return ts.computeTransformFlagsForNode(node, subtreeFlags);
+    }
+    function aggregateTransformFlagsForNodeArray(nodes) {
+        if (nodes === undefined) {
+            return 0;
+        }
+        var subtreeFlags = 0;
+        var nodeArrayFlags = 0;
+        for (var _i = 0, nodes_3 = nodes; _i < nodes_3.length; _i++) {
+            var node = nodes_3[_i];
+            subtreeFlags |= aggregateTransformFlagsForNode(node);
+            nodeArrayFlags |= node.transformFlags & ~536870912;
+        }
+        nodes.transformFlags = nodeArrayFlags | 536870912;
+        return subtreeFlags;
+    }
+    function aggregateTransformFlagsForSubtree(node) {
+        if (ts.hasModifier(node, 2) || (ts.isTypeNode(node) && node.kind !== 216)) {
+            return 0;
+        }
+        return reduceEachChild(node, 0, aggregateTransformFlagsForChildNode, aggregateTransformFlagsForChildNodes);
+    }
+    function aggregateTransformFlagsForChildNode(transformFlags, node) {
+        return transformFlags | aggregateTransformFlagsForNode(node);
+    }
+    function aggregateTransformFlagsForChildNodes(transformFlags, nodes) {
+        return transformFlags | aggregateTransformFlagsForNodeArray(nodes);
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function createSourceMapGenerator(host, file, sourceRoot, sourcesDirectoryPath, generatorOptions) {
+        var _a = generatorOptions.extendedDiagnostics
+            ? ts.performance.createTimer("Source Map", "beforeSourcemap", "afterSourcemap")
+            : ts.performance.nullTimer, enter = _a.enter, exit = _a.exit;
+        var rawSources = [];
+        var sources = [];
+        var sourceToSourceIndexMap = ts.createMap();
+        var sourcesContent;
+        var names = [];
+        var nameToNameIndexMap;
+        var mappings = "";
+        var lastGeneratedLine = 0;
+        var lastGeneratedCharacter = 0;
+        var lastSourceIndex = 0;
+        var lastSourceLine = 0;
+        var lastSourceCharacter = 0;
+        var lastNameIndex = 0;
+        var hasLast = false;
+        var pendingGeneratedLine = 0;
+        var pendingGeneratedCharacter = 0;
+        var pendingSourceIndex = 0;
+        var pendingSourceLine = 0;
+        var pendingSourceCharacter = 0;
+        var pendingNameIndex = 0;
+        var hasPending = false;
+        var hasPendingSource = false;
+        var hasPendingName = false;
+        return {
+            getSources: function () { return rawSources; },
+            addSource: addSource,
+            setSourceContent: setSourceContent,
+            addName: addName,
+            addMapping: addMapping,
+            appendSourceMap: appendSourceMap,
+            toJSON: toJSON,
+            toString: function () { return JSON.stringify(toJSON()); }
+        };
+        function addSource(fileName) {
+            enter();
+            var source = ts.getRelativePathToDirectoryOrUrl(sourcesDirectoryPath, fileName, host.getCurrentDirectory(), host.getCanonicalFileName, true);
+            var sourceIndex = sourceToSourceIndexMap.get(source);
+            if (sourceIndex === undefined) {
+                sourceIndex = sources.length;
+                sources.push(source);
+                rawSources.push(fileName);
+                sourceToSourceIndexMap.set(source, sourceIndex);
+            }
+            exit();
+            return sourceIndex;
+        }
+        function setSourceContent(sourceIndex, content) {
+            enter();
+            if (content !== null) {
+                if (!sourcesContent)
+                    sourcesContent = [];
+                while (sourcesContent.length < sourceIndex) {
+                    sourcesContent.push(null);
+                }
+                sourcesContent[sourceIndex] = content;
+            }
+            exit();
+        }
+        function addName(name) {
+            enter();
+            if (!nameToNameIndexMap)
+                nameToNameIndexMap = ts.createMap();
+            var nameIndex = nameToNameIndexMap.get(name);
+            if (nameIndex === undefined) {
+                nameIndex = names.length;
+                names.push(name);
+                nameToNameIndexMap.set(name, nameIndex);
+            }
+            exit();
+            return nameIndex;
+        }
+        function isNewGeneratedPosition(generatedLine, generatedCharacter) {
+            return !hasPending
+                || pendingGeneratedLine !== generatedLine
+                || pendingGeneratedCharacter !== generatedCharacter;
+        }
+        function isBacktrackingSourcePosition(sourceIndex, sourceLine, sourceCharacter) {
+            return sourceIndex !== undefined
+                && sourceLine !== undefined
+                && sourceCharacter !== undefined
+                && pendingSourceIndex === sourceIndex
+                && (pendingSourceLine > sourceLine
+                    || pendingSourceLine === sourceLine && pendingSourceCharacter > sourceCharacter);
+        }
+        function addMapping(generatedLine, generatedCharacter, sourceIndex, sourceLine, sourceCharacter, nameIndex) {
+            ts.Debug.assert(generatedLine >= pendingGeneratedLine, "generatedLine cannot backtrack");
+            ts.Debug.assert(generatedCharacter >= 0, "generatedCharacter cannot be negative");
+            ts.Debug.assert(sourceIndex === undefined || sourceIndex >= 0, "sourceIndex cannot be negative");
+            ts.Debug.assert(sourceLine === undefined || sourceLine >= 0, "sourceLine cannot be negative");
+            ts.Debug.assert(sourceCharacter === undefined || sourceCharacter >= 0, "sourceCharacter cannot be negative");
+            enter();
+            if (isNewGeneratedPosition(generatedLine, generatedCharacter) ||
+                isBacktrackingSourcePosition(sourceIndex, sourceLine, sourceCharacter)) {
+                commitPendingMapping();
+                pendingGeneratedLine = generatedLine;
+                pendingGeneratedCharacter = generatedCharacter;
+                hasPendingSource = false;
+                hasPendingName = false;
+                hasPending = true;
+            }
+            if (sourceIndex !== undefined && sourceLine !== undefined && sourceCharacter !== undefined) {
+                pendingSourceIndex = sourceIndex;
+                pendingSourceLine = sourceLine;
+                pendingSourceCharacter = sourceCharacter;
+                hasPendingSource = true;
+                if (nameIndex !== undefined) {
+                    pendingNameIndex = nameIndex;
+                    hasPendingName = true;
+                }
+            }
+            exit();
+        }
+        function appendSourceMap(generatedLine, generatedCharacter, map, sourceMapPath, start, end) {
+            ts.Debug.assert(generatedLine >= pendingGeneratedLine, "generatedLine cannot backtrack");
+            ts.Debug.assert(generatedCharacter >= 0, "generatedCharacter cannot be negative");
+            enter();
+            var sourceIndexToNewSourceIndexMap = [];
+            var nameIndexToNewNameIndexMap;
+            var mappingIterator = decodeMappings(map.mappings);
+            for (var iterResult = mappingIterator.next(); !iterResult.done; iterResult = mappingIterator.next()) {
+                var raw = iterResult.value;
+                if (end && (raw.generatedLine > end.line ||
+                    (raw.generatedLine === end.line && raw.generatedCharacter > end.character))) {
+                    break;
+                }
+                if (start && (raw.generatedLine < start.line ||
+                    (start.line === raw.generatedLine && raw.generatedCharacter < start.character))) {
+                    continue;
+                }
+                var newSourceIndex = void 0;
+                var newSourceLine = void 0;
+                var newSourceCharacter = void 0;
+                var newNameIndex = void 0;
+                if (raw.sourceIndex !== undefined) {
+                    newSourceIndex = sourceIndexToNewSourceIndexMap[raw.sourceIndex];
+                    if (newSourceIndex === undefined) {
+                        var rawPath = map.sources[raw.sourceIndex];
+                        var relativePath = map.sourceRoot ? ts.combinePaths(map.sourceRoot, rawPath) : rawPath;
+                        var combinedPath = ts.combinePaths(ts.getDirectoryPath(sourceMapPath), relativePath);
+                        sourceIndexToNewSourceIndexMap[raw.sourceIndex] = newSourceIndex = addSource(combinedPath);
+                        if (map.sourcesContent && typeof map.sourcesContent[raw.sourceIndex] === "string") {
+                            setSourceContent(newSourceIndex, map.sourcesContent[raw.sourceIndex]);
+                        }
+                    }
+                    newSourceLine = raw.sourceLine;
+                    newSourceCharacter = raw.sourceCharacter;
+                    if (map.names && raw.nameIndex !== undefined) {
+                        if (!nameIndexToNewNameIndexMap)
+                            nameIndexToNewNameIndexMap = [];
+                        newNameIndex = nameIndexToNewNameIndexMap[raw.nameIndex];
+                        if (newNameIndex === undefined) {
+                            nameIndexToNewNameIndexMap[raw.nameIndex] = newNameIndex = addName(map.names[raw.nameIndex]);
+                        }
+                    }
+                }
+                var rawGeneratedLine = raw.generatedLine - (start ? start.line : 0);
+                var newGeneratedLine = rawGeneratedLine + generatedLine;
+                var rawGeneratedCharacter = start && start.line === raw.generatedLine ? raw.generatedCharacter - start.character : raw.generatedCharacter;
+                var newGeneratedCharacter = rawGeneratedLine === 0 ? rawGeneratedCharacter + generatedCharacter : rawGeneratedCharacter;
+                addMapping(newGeneratedLine, newGeneratedCharacter, newSourceIndex, newSourceLine, newSourceCharacter, newNameIndex);
+            }
+            exit();
+        }
+        function shouldCommitMapping() {
+            return !hasLast
+                || lastGeneratedLine !== pendingGeneratedLine
+                || lastGeneratedCharacter !== pendingGeneratedCharacter
+                || lastSourceIndex !== pendingSourceIndex
+                || lastSourceLine !== pendingSourceLine
+                || lastSourceCharacter !== pendingSourceCharacter
+                || lastNameIndex !== pendingNameIndex;
+        }
+        function commitPendingMapping() {
+            if (!hasPending || !shouldCommitMapping()) {
+                return;
+            }
+            enter();
+            if (lastGeneratedLine < pendingGeneratedLine) {
+                do {
+                    mappings += ";";
+                    lastGeneratedLine++;
+                    lastGeneratedCharacter = 0;
+                } while (lastGeneratedLine < pendingGeneratedLine);
+            }
+            else {
+                ts.Debug.assertEqual(lastGeneratedLine, pendingGeneratedLine, "generatedLine cannot backtrack");
+                if (hasLast) {
+                    mappings += ",";
+                }
+            }
+            mappings += base64VLQFormatEncode(pendingGeneratedCharacter - lastGeneratedCharacter);
+            lastGeneratedCharacter = pendingGeneratedCharacter;
+            if (hasPendingSource) {
+                mappings += base64VLQFormatEncode(pendingSourceIndex - lastSourceIndex);
+                lastSourceIndex = pendingSourceIndex;
+                mappings += base64VLQFormatEncode(pendingSourceLine - lastSourceLine);
+                lastSourceLine = pendingSourceLine;
+                mappings += base64VLQFormatEncode(pendingSourceCharacter - lastSourceCharacter);
+                lastSourceCharacter = pendingSourceCharacter;
+                if (hasPendingName) {
+                    mappings += base64VLQFormatEncode(pendingNameIndex - lastNameIndex);
+                    lastNameIndex = pendingNameIndex;
+                }
+            }
+            hasLast = true;
+            exit();
+        }
+        function toJSON() {
+            commitPendingMapping();
+            return {
+                version: 3,
+                file: file,
+                sourceRoot: sourceRoot,
+                sources: sources,
+                names: names,
+                mappings: mappings,
+                sourcesContent: sourcesContent,
+            };
+        }
+    }
+    ts.createSourceMapGenerator = createSourceMapGenerator;
+    var sourceMapCommentRegExp = /^\/\/[@#] source[M]appingURL=(.+)\s*$/;
+    var whitespaceOrMapCommentRegExp = /^\s*(\/\/[@#] .*)?$/;
+    function getLineInfo(text, lineStarts) {
+        return {
+            getLineCount: function () { return lineStarts.length; },
+            getLineText: function (line) { return text.substring(lineStarts[line], lineStarts[line + 1]); }
+        };
+    }
+    ts.getLineInfo = getLineInfo;
+    function tryGetSourceMappingURL(lineInfo) {
+        for (var index = lineInfo.getLineCount() - 1; index >= 0; index--) {
+            var line = lineInfo.getLineText(index);
+            var comment = sourceMapCommentRegExp.exec(line);
+            if (comment) {
+                return comment[1];
+            }
+            else if (!line.match(whitespaceOrMapCommentRegExp)) {
+                break;
+            }
+        }
+    }
+    ts.tryGetSourceMappingURL = tryGetSourceMappingURL;
+    function isStringOrNull(x) {
+        return typeof x === "string" || x === null;
+    }
+    function isRawSourceMap(x) {
+        return x !== null
+            && typeof x === "object"
+            && x.version === 3
+            && typeof x.file === "string"
+            && typeof x.mappings === "string"
+            && ts.isArray(x.sources) && ts.every(x.sources, ts.isString)
+            && (x.sourceRoot === undefined || x.sourceRoot === null || typeof x.sourceRoot === "string")
+            && (x.sourcesContent === undefined || x.sourcesContent === null || ts.isArray(x.sourcesContent) && ts.every(x.sourcesContent, isStringOrNull))
+            && (x.names === undefined || x.names === null || ts.isArray(x.names) && ts.every(x.names, ts.isString));
+    }
+    ts.isRawSourceMap = isRawSourceMap;
+    function tryParseRawSourceMap(text) {
+        try {
+            var parsed = JSON.parse(text);
+            if (isRawSourceMap(parsed)) {
+                return parsed;
+            }
+        }
+        catch (_a) {
+        }
+        return undefined;
+    }
+    ts.tryParseRawSourceMap = tryParseRawSourceMap;
+    function decodeMappings(mappings) {
+        var done = false;
+        var pos = 0;
+        var generatedLine = 0;
+        var generatedCharacter = 0;
+        var sourceIndex = 0;
+        var sourceLine = 0;
+        var sourceCharacter = 0;
+        var nameIndex = 0;
+        var error;
+        return {
+            get pos() { return pos; },
+            get error() { return error; },
+            get state() { return captureMapping(true, true); },
+            next: function () {
+                while (!done && pos < mappings.length) {
+                    var ch = mappings.charCodeAt(pos);
+                    if (ch === 59) {
+                        generatedLine++;
+                        generatedCharacter = 0;
+                        pos++;
+                        continue;
+                    }
+                    if (ch === 44) {
+                        pos++;
+                        continue;
+                    }
+                    var hasSource = false;
+                    var hasName = false;
+                    generatedCharacter += base64VLQFormatDecode();
+                    if (hasReportedError())
+                        return stopIterating();
+                    if (generatedCharacter < 0)
+                        return setErrorAndStopIterating("Invalid generatedCharacter found");
+                    if (!isSourceMappingSegmentEnd()) {
+                        hasSource = true;
+                        sourceIndex += base64VLQFormatDecode();
+                        if (hasReportedError())
+                            return stopIterating();
+                        if (sourceIndex < 0)
+                            return setErrorAndStopIterating("Invalid sourceIndex found");
+                        if (isSourceMappingSegmentEnd())
+                            return setErrorAndStopIterating("Unsupported Format: No entries after sourceIndex");
+                        sourceLine += base64VLQFormatDecode();
+                        if (hasReportedError())
+                            return stopIterating();
+                        if (sourceLine < 0)
+                            return setErrorAndStopIterating("Invalid sourceLine found");
+                        if (isSourceMappingSegmentEnd())
+                            return setErrorAndStopIterating("Unsupported Format: No entries after sourceLine");
+                        sourceCharacter += base64VLQFormatDecode();
+                        if (hasReportedError())
+                            return stopIterating();
+                        if (sourceCharacter < 0)
+                            return setErrorAndStopIterating("Invalid sourceCharacter found");
+                        if (!isSourceMappingSegmentEnd()) {
+                            hasName = true;
+                            nameIndex += base64VLQFormatDecode();
+                            if (hasReportedError())
+                                return stopIterating();
+                            if (nameIndex < 0)
+                                return setErrorAndStopIterating("Invalid nameIndex found");
+                            if (!isSourceMappingSegmentEnd())
+                                return setErrorAndStopIterating("Unsupported Error Format: Entries after nameIndex");
+                        }
+                    }
+                    return { value: captureMapping(hasSource, hasName), done: done };
+                }
+                return stopIterating();
+            }
+        };
+        function captureMapping(hasSource, hasName) {
+            return {
+                generatedLine: generatedLine,
+                generatedCharacter: generatedCharacter,
+                sourceIndex: hasSource ? sourceIndex : undefined,
+                sourceLine: hasSource ? sourceLine : undefined,
+                sourceCharacter: hasSource ? sourceCharacter : undefined,
+                nameIndex: hasName ? nameIndex : undefined
+            };
+        }
+        function stopIterating() {
+            done = true;
+            return { value: undefined, done: true };
+        }
+        function setError(message) {
+            if (error === undefined) {
+                error = message;
+            }
+        }
+        function setErrorAndStopIterating(message) {
+            setError(message);
+            return stopIterating();
+        }
+        function hasReportedError() {
+            return error !== undefined;
+        }
+        function isSourceMappingSegmentEnd() {
+            return (pos === mappings.length ||
+                mappings.charCodeAt(pos) === 44 ||
+                mappings.charCodeAt(pos) === 59);
+        }
+        function base64VLQFormatDecode() {
+            var moreDigits = true;
+            var shiftCount = 0;
+            var value = 0;
+            for (; moreDigits; pos++) {
+                if (pos >= mappings.length)
+                    return setError("Error in decoding base64VLQFormatDecode, past the mapping string"), -1;
+                var currentByte = base64FormatDecode(mappings.charCodeAt(pos));
+                if (currentByte === -1)
+                    return setError("Invalid character in VLQ"), -1;
+                moreDigits = (currentByte & 32) !== 0;
+                value = value | ((currentByte & 31) << shiftCount);
+                shiftCount += 5;
+            }
+            if ((value & 1) === 0) {
+                value = value >> 1;
+            }
+            else {
+                value = value >> 1;
+                value = -value;
+            }
+            return value;
+        }
+    }
+    ts.decodeMappings = decodeMappings;
+    function sameMapping(left, right) {
+        return left === right
+            || left.generatedLine === right.generatedLine
+                && left.generatedCharacter === right.generatedCharacter
+                && left.sourceIndex === right.sourceIndex
+                && left.sourceLine === right.sourceLine
+                && left.sourceCharacter === right.sourceCharacter
+                && left.nameIndex === right.nameIndex;
+    }
+    ts.sameMapping = sameMapping;
+    function isSourceMapping(mapping) {
+        return mapping.sourceIndex !== undefined
+            && mapping.sourceLine !== undefined
+            && mapping.sourceCharacter !== undefined;
+    }
+    ts.isSourceMapping = isSourceMapping;
+    function base64FormatEncode(value) {
+        return value >= 0 && value < 26 ? 65 + value :
+            value >= 26 && value < 52 ? 97 + value - 26 :
+                value >= 52 && value < 62 ? 48 + value - 52 :
+                    value === 62 ? 43 :
+                        value === 63 ? 47 :
+                            ts.Debug.fail(value + ": not a base64 value");
+    }
+    function base64FormatDecode(ch) {
+        return ch >= 65 && ch <= 90 ? ch - 65 :
+            ch >= 97 && ch <= 122 ? ch - 97 + 26 :
+                ch >= 48 && ch <= 57 ? ch - 48 + 52 :
+                    ch === 43 ? 62 :
+                        ch === 47 ? 63 :
+                            -1;
+    }
+    function base64VLQFormatEncode(inValue) {
+        if (inValue < 0) {
+            inValue = ((-inValue) << 1) + 1;
+        }
+        else {
+            inValue = inValue << 1;
+        }
+        var encodedStr = "";
+        do {
+            var currentDigit = inValue & 31;
+            inValue = inValue >> 5;
+            if (inValue > 0) {
+                currentDigit = currentDigit | 32;
+            }
+            encodedStr = encodedStr + String.fromCharCode(base64FormatEncode(currentDigit));
+        } while (inValue > 0);
+        return encodedStr;
+    }
+    function isSourceMappedPosition(value) {
+        return value.sourceIndex !== undefined
+            && value.sourcePosition !== undefined;
+    }
+    function sameMappedPosition(left, right) {
+        return left.generatedPosition === right.generatedPosition
+            && left.sourceIndex === right.sourceIndex
+            && left.sourcePosition === right.sourcePosition;
+    }
+    function compareSourcePositions(left, right) {
+        ts.Debug.assert(left.sourceIndex === right.sourceIndex);
+        return ts.compareValues(left.sourcePosition, right.sourcePosition);
+    }
+    function compareGeneratedPositions(left, right) {
+        return ts.compareValues(left.generatedPosition, right.generatedPosition);
+    }
+    function getSourcePositionOfMapping(value) {
+        return value.sourcePosition;
+    }
+    function getGeneratedPositionOfMapping(value) {
+        return value.generatedPosition;
+    }
+    function createDocumentPositionMapper(host, map, mapPath) {
+        var mapDirectory = ts.getDirectoryPath(mapPath);
+        var sourceRoot = map.sourceRoot ? ts.getNormalizedAbsolutePath(map.sourceRoot, mapDirectory) : mapDirectory;
+        var generatedAbsoluteFilePath = ts.getNormalizedAbsolutePath(map.file, mapDirectory);
+        var generatedFile = host.getSourceFileLike(generatedAbsoluteFilePath);
+        var sourceFileAbsolutePaths = map.sources.map(function (source) { return ts.getNormalizedAbsolutePath(source, sourceRoot); });
+        var sourceToSourceIndexMap = ts.createMapFromEntries(sourceFileAbsolutePaths.map(function (source, i) { return [host.getCanonicalFileName(source), i]; }));
+        var decodedMappings;
+        var generatedMappings;
+        var sourceMappings;
+        return {
+            getSourcePosition: getSourcePosition,
+            getGeneratedPosition: getGeneratedPosition
+        };
+        function processMapping(mapping) {
+            var generatedPosition = generatedFile !== undefined
+                ? ts.getPositionOfLineAndCharacter(generatedFile, mapping.generatedLine, mapping.generatedCharacter, true)
+                : -1;
+            var source;
+            var sourcePosition;
+            if (isSourceMapping(mapping)) {
+                var sourceFile = host.getSourceFileLike(sourceFileAbsolutePaths[mapping.sourceIndex]);
+                source = map.sources[mapping.sourceIndex];
+                sourcePosition = sourceFile !== undefined
+                    ? ts.getPositionOfLineAndCharacter(sourceFile, mapping.sourceLine, mapping.sourceCharacter, true)
+                    : -1;
+            }
+            return {
+                generatedPosition: generatedPosition,
+                source: source,
+                sourceIndex: mapping.sourceIndex,
+                sourcePosition: sourcePosition,
+                nameIndex: mapping.nameIndex
+            };
+        }
+        function getDecodedMappings() {
+            if (decodedMappings === undefined) {
+                var decoder = decodeMappings(map.mappings);
+                var mappings = ts.arrayFrom(decoder, processMapping);
+                if (decoder.error !== undefined) {
+                    if (host.log) {
+                        host.log("Encountered error while decoding sourcemap: " + decoder.error);
+                    }
+                    decodedMappings = ts.emptyArray;
+                }
+                else {
+                    decodedMappings = mappings;
+                }
+            }
+            return decodedMappings;
+        }
+        function getSourceMappings(sourceIndex) {
+            if (sourceMappings === undefined) {
+                var lists = [];
+                for (var _i = 0, _a = getDecodedMappings(); _i < _a.length; _i++) {
+                    var mapping = _a[_i];
+                    if (!isSourceMappedPosition(mapping))
+                        continue;
+                    var list = lists[mapping.sourceIndex];
+                    if (!list)
+                        lists[mapping.sourceIndex] = list = [];
+                    list.push(mapping);
+                }
+                sourceMappings = lists.map(function (list) { return ts.sortAndDeduplicate(list, compareSourcePositions, sameMappedPosition); });
+            }
+            return sourceMappings[sourceIndex];
+        }
+        function getGeneratedMappings() {
+            if (generatedMappings === undefined) {
+                var list = [];
+                for (var _i = 0, _a = getDecodedMappings(); _i < _a.length; _i++) {
+                    var mapping = _a[_i];
+                    list.push(mapping);
+                }
+                generatedMappings = ts.sortAndDeduplicate(list, compareGeneratedPositions, sameMappedPosition);
+            }
+            return generatedMappings;
+        }
+        function getGeneratedPosition(loc) {
+            var sourceIndex = sourceToSourceIndexMap.get(host.getCanonicalFileName(loc.fileName));
+            if (sourceIndex === undefined)
+                return loc;
+            var sourceMappings = getSourceMappings(sourceIndex);
+            if (!ts.some(sourceMappings))
+                return loc;
+            var targetIndex = ts.binarySearchKey(sourceMappings, loc.pos, getSourcePositionOfMapping, ts.compareValues);
+            if (targetIndex < 0) {
+                targetIndex = ~targetIndex;
+            }
+            var mapping = sourceMappings[targetIndex];
+            if (mapping === undefined || mapping.sourceIndex !== sourceIndex) {
+                return loc;
+            }
+            return { fileName: generatedAbsoluteFilePath, pos: mapping.generatedPosition };
+        }
+        function getSourcePosition(loc) {
+            var generatedMappings = getGeneratedMappings();
+            if (!ts.some(generatedMappings))
+                return loc;
+            var targetIndex = ts.binarySearchKey(generatedMappings, loc.pos, getGeneratedPositionOfMapping, ts.compareValues);
+            if (targetIndex < 0) {
+                targetIndex = ~targetIndex;
+            }
+            var mapping = generatedMappings[targetIndex];
+            if (mapping === undefined || !isSourceMappedPosition(mapping)) {
+                return loc;
+            }
+            return { fileName: sourceFileAbsolutePaths[mapping.sourceIndex], pos: mapping.sourcePosition };
+        }
+    }
+    ts.createDocumentPositionMapper = createDocumentPositionMapper;
+    ts.identitySourceMapConsumer = {
+        getSourcePosition: ts.identity,
+        getGeneratedPosition: ts.identity
+    };
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function getOriginalNodeId(node) {
+        node = ts.getOriginalNode(node);
+        return node ? ts.getNodeId(node) : 0;
+    }
+    ts.getOriginalNodeId = getOriginalNodeId;
+    function containsDefaultReference(node) {
+        if (!node)
+            return false;
+        if (!ts.isNamedImports(node))
+            return false;
+        return ts.some(node.elements, isNamedDefaultReference);
+    }
+    function isNamedDefaultReference(e) {
+        return e.propertyName !== undefined && e.propertyName.escapedText === "default";
+    }
+    function chainBundle(transformSourceFile) {
+        return transformSourceFileOrBundle;
+        function transformSourceFileOrBundle(node) {
+            return node.kind === 290 ? transformSourceFile(node) : transformBundle(node);
+        }
+        function transformBundle(node) {
+            return ts.createBundle(ts.map(node.sourceFiles, transformSourceFile), node.prepends);
+        }
+    }
+    ts.chainBundle = chainBundle;
+    function getExportNeedsImportStarHelper(node) {
+        return !!ts.getNamespaceDeclarationNode(node);
+    }
+    ts.getExportNeedsImportStarHelper = getExportNeedsImportStarHelper;
+    function getImportNeedsImportStarHelper(node) {
+        if (!!ts.getNamespaceDeclarationNode(node)) {
+            return true;
+        }
+        var bindings = node.importClause && node.importClause.namedBindings;
+        if (!bindings) {
+            return false;
+        }
+        if (!ts.isNamedImports(bindings))
+            return false;
+        var defaultRefCount = 0;
+        for (var _i = 0, _a = bindings.elements; _i < _a.length; _i++) {
+            var binding = _a[_i];
+            if (isNamedDefaultReference(binding)) {
+                defaultRefCount++;
+            }
+        }
+        return (defaultRefCount > 0 && defaultRefCount !== bindings.elements.length) || (!!(bindings.elements.length - defaultRefCount) && ts.isDefaultImport(node));
+    }
+    ts.getImportNeedsImportStarHelper = getImportNeedsImportStarHelper;
+    function getImportNeedsImportDefaultHelper(node) {
+        return !getImportNeedsImportStarHelper(node) && (ts.isDefaultImport(node) || (!!node.importClause && ts.isNamedImports(node.importClause.namedBindings) && containsDefaultReference(node.importClause.namedBindings)));
+    }
+    ts.getImportNeedsImportDefaultHelper = getImportNeedsImportDefaultHelper;
+    function collectExternalModuleInfo(sourceFile, resolver, compilerOptions) {
+        var externalImports = [];
+        var exportSpecifiers = ts.createMultiMap();
+        var exportedBindings = [];
+        var uniqueExports = ts.createMap();
+        var exportedNames;
+        var hasExportDefault = false;
+        var exportEquals;
+        var hasExportStarsToExportValues = false;
+        var hasImportStar = false;
+        var hasImportDefault = false;
+        for (var _i = 0, _a = sourceFile.statements; _i < _a.length; _i++) {
+            var node = _a[_i];
+            switch (node.kind) {
+                case 254:
+                    externalImports.push(node);
+                    if (!hasImportStar && getImportNeedsImportStarHelper(node)) {
+                        hasImportStar = true;
+                    }
+                    if (!hasImportDefault && getImportNeedsImportDefaultHelper(node)) {
+                        hasImportDefault = true;
+                    }
+                    break;
+                case 253:
+                    if (node.moduleReference.kind === 265) {
+                        externalImports.push(node);
+                    }
+                    break;
+                case 260:
+                    if (node.moduleSpecifier) {
+                        if (!node.exportClause) {
+                            externalImports.push(node);
+                            hasExportStarsToExportValues = true;
+                        }
+                        else {
+                            externalImports.push(node);
+                        }
+                    }
+                    else {
+                        for (var _b = 0, _c = ts.cast(node.exportClause, ts.isNamedExports).elements; _b < _c.length; _b++) {
+                            var specifier = _c[_b];
+                            if (!uniqueExports.get(ts.idText(specifier.name))) {
+                                var name = specifier.propertyName || specifier.name;
+                                exportSpecifiers.add(ts.idText(name), specifier);
+                                var decl = resolver.getReferencedImportDeclaration(name)
+                                    || resolver.getReferencedValueDeclaration(name);
+                                if (decl) {
+                                    multiMapSparseArrayAdd(exportedBindings, getOriginalNodeId(decl), specifier.name);
+                                }
+                                uniqueExports.set(ts.idText(specifier.name), true);
+                                exportedNames = ts.append(exportedNames, specifier.name);
+                            }
+                        }
+                    }
+                    break;
+                case 259:
+                    if (node.isExportEquals && !exportEquals) {
+                        exportEquals = node;
+                    }
+                    break;
+                case 225:
+                    if (ts.hasModifier(node, 1)) {
+                        for (var _d = 0, _e = node.declarationList.declarations; _d < _e.length; _d++) {
+                            var decl = _e[_d];
+                            exportedNames = collectExportedVariableInfo(decl, uniqueExports, exportedNames);
+                        }
+                    }
+                    break;
+                case 244:
+                    if (ts.hasModifier(node, 1)) {
+                        if (ts.hasModifier(node, 512)) {
+                            if (!hasExportDefault) {
+                                multiMapSparseArrayAdd(exportedBindings, getOriginalNodeId(node), ts.getDeclarationName(node));
+                                hasExportDefault = true;
+                            }
+                        }
+                        else {
+                            var name = node.name;
+                            if (!uniqueExports.get(ts.idText(name))) {
+                                multiMapSparseArrayAdd(exportedBindings, getOriginalNodeId(node), name);
+                                uniqueExports.set(ts.idText(name), true);
+                                exportedNames = ts.append(exportedNames, name);
+                            }
+                        }
+                    }
+                    break;
+                case 245:
+                    if (ts.hasModifier(node, 1)) {
+                        if (ts.hasModifier(node, 512)) {
+                            if (!hasExportDefault) {
+                                multiMapSparseArrayAdd(exportedBindings, getOriginalNodeId(node), ts.getDeclarationName(node));
+                                hasExportDefault = true;
+                            }
+                        }
+                        else {
+                            var name = node.name;
+                            if (name && !uniqueExports.get(ts.idText(name))) {
+                                multiMapSparseArrayAdd(exportedBindings, getOriginalNodeId(node), name);
+                                uniqueExports.set(ts.idText(name), true);
+                                exportedNames = ts.append(exportedNames, name);
+                            }
+                        }
+                    }
+                    break;
+            }
+        }
+        var externalHelpersImportDeclaration = ts.createExternalHelpersImportDeclarationIfNeeded(sourceFile, compilerOptions, hasExportStarsToExportValues, hasImportStar, hasImportDefault);
+        if (externalHelpersImportDeclaration) {
+            externalImports.unshift(externalHelpersImportDeclaration);
+        }
+        return { externalImports: externalImports, exportSpecifiers: exportSpecifiers, exportEquals: exportEquals, hasExportStarsToExportValues: hasExportStarsToExportValues, exportedBindings: exportedBindings, exportedNames: exportedNames, externalHelpersImportDeclaration: externalHelpersImportDeclaration };
+    }
+    ts.collectExternalModuleInfo = collectExternalModuleInfo;
+    function collectExportedVariableInfo(decl, uniqueExports, exportedNames) {
+        if (ts.isBindingPattern(decl.name)) {
+            for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
+                var element = _a[_i];
+                if (!ts.isOmittedExpression(element)) {
+                    exportedNames = collectExportedVariableInfo(element, uniqueExports, exportedNames);
+                }
+            }
+        }
+        else if (!ts.isGeneratedIdentifier(decl.name)) {
+            var text = ts.idText(decl.name);
+            if (!uniqueExports.get(text)) {
+                uniqueExports.set(text, true);
+                exportedNames = ts.append(exportedNames, decl.name);
+            }
+        }
+        return exportedNames;
+    }
+    function multiMapSparseArrayAdd(map, key, value) {
+        var values = map[key];
+        if (values) {
+            values.push(value);
+        }
+        else {
+            map[key] = values = [value];
+        }
+        return values;
+    }
+    function isSimpleCopiableExpression(expression) {
+        return ts.isStringLiteralLike(expression) ||
+            expression.kind === 8 ||
+            ts.isKeyword(expression.kind) ||
+            ts.isIdentifier(expression);
+    }
+    ts.isSimpleCopiableExpression = isSimpleCopiableExpression;
+    function isSimpleInlineableExpression(expression) {
+        return !ts.isIdentifier(expression) && isSimpleCopiableExpression(expression) ||
+            ts.isWellKnownSymbolSyntactically(expression);
+    }
+    ts.isSimpleInlineableExpression = isSimpleInlineableExpression;
+    function isCompoundAssignment(kind) {
+        return kind >= 63
+            && kind <= 74;
+    }
+    ts.isCompoundAssignment = isCompoundAssignment;
+    function getNonAssignmentOperatorForCompoundAssignment(kind) {
+        switch (kind) {
+            case 63: return 39;
+            case 64: return 40;
+            case 65: return 41;
+            case 66: return 42;
+            case 67: return 43;
+            case 68: return 44;
+            case 69: return 47;
+            case 70: return 48;
+            case 71: return 49;
+            case 72: return 50;
+            case 73: return 51;
+            case 74: return 52;
+        }
+    }
+    ts.getNonAssignmentOperatorForCompoundAssignment = getNonAssignmentOperatorForCompoundAssignment;
+    function addPrologueDirectivesAndInitialSuperCall(ctor, result, visitor) {
+        if (ctor.body) {
+            var statements = ctor.body.statements;
+            var index = ts.addPrologue(result, statements, false, visitor);
+            if (index === statements.length) {
+                return index;
+            }
+            var superIndex = ts.findIndex(statements, function (s) { return ts.isExpressionStatement(s) && ts.isSuperCall(s.expression); }, index);
+            if (superIndex > -1) {
+                for (var i = index; i <= superIndex; i++) {
+                    result.push(ts.visitNode(statements[i], visitor, ts.isStatement));
+                }
+                return superIndex + 1;
+            }
+            return index;
+        }
+        return 0;
+    }
+    ts.addPrologueDirectivesAndInitialSuperCall = addPrologueDirectivesAndInitialSuperCall;
+    function helperString(input) {
+        var args = [];
+        for (var _i = 1; _i < arguments.length; _i++) {
+            args[_i - 1] = arguments[_i];
+        }
+        return function (uniqueName) {
+            var result = "";
+            for (var i = 0; i < args.length; i++) {
+                result += input[i];
+                result += uniqueName(args[i]);
+            }
+            result += input[input.length - 1];
+            return result;
+        };
+    }
+    ts.helperString = helperString;
+    function getProperties(node, requireInitializer, isStatic) {
+        return ts.filter(node.members, function (m) { return isInitializedOrStaticProperty(m, requireInitializer, isStatic); });
+    }
+    ts.getProperties = getProperties;
+    function isInitializedOrStaticProperty(member, requireInitializer, isStatic) {
+        return ts.isPropertyDeclaration(member)
+            && (!!member.initializer || !requireInitializer)
+            && ts.hasStaticModifier(member) === isStatic;
+    }
+    function isInitializedProperty(member) {
+        return member.kind === 159
+            && member.initializer !== undefined;
+    }
+    ts.isInitializedProperty = isInitializedProperty;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function flattenDestructuringAssignment(node, visitor, context, level, needsValue, createAssignmentCallback) {
+        var location = node;
+        var value;
+        if (ts.isDestructuringAssignment(node)) {
+            value = node.right;
+            while (ts.isEmptyArrayLiteral(node.left) || ts.isEmptyObjectLiteral(node.left)) {
+                if (ts.isDestructuringAssignment(value)) {
+                    location = node = value;
+                    value = node.right;
+                }
+                else {
+                    return ts.visitNode(value, visitor, ts.isExpression);
+                }
+            }
+        }
+        var expressions;
+        var flattenContext = {
+            context: context,
+            level: level,
+            downlevelIteration: !!context.getCompilerOptions().downlevelIteration,
+            hoistTempVariables: true,
+            emitExpression: emitExpression,
+            emitBindingOrAssignment: emitBindingOrAssignment,
+            createArrayBindingOrAssignmentPattern: makeArrayAssignmentPattern,
+            createObjectBindingOrAssignmentPattern: makeObjectAssignmentPattern,
+            createArrayBindingOrAssignmentElement: makeAssignmentElement,
+            visitor: visitor
+        };
+        if (value) {
+            value = ts.visitNode(value, visitor, ts.isExpression);
+            if (ts.isIdentifier(value) && bindingOrAssignmentElementAssignsToName(node, value.escapedText) ||
+                bindingOrAssignmentElementContainsNonLiteralComputedName(node)) {
+                value = ensureIdentifier(flattenContext, value, false, location);
+            }
+            else if (needsValue) {
+                value = ensureIdentifier(flattenContext, value, true, location);
+            }
+            else if (ts.nodeIsSynthesized(node)) {
+                location = value;
+            }
+        }
+        flattenBindingOrAssignmentElement(flattenContext, node, value, location, ts.isDestructuringAssignment(node));
+        if (value && needsValue) {
+            if (!ts.some(expressions)) {
+                return value;
+            }
+            expressions.push(value);
+        }
+        return ts.aggregateTransformFlags(ts.inlineExpressions(expressions)) || ts.createOmittedExpression();
+        function emitExpression(expression) {
+            ts.aggregateTransformFlags(expression);
+            expressions = ts.append(expressions, expression);
+        }
+        function emitBindingOrAssignment(target, value, location, original) {
+            ts.Debug.assertNode(target, createAssignmentCallback ? ts.isIdentifier : ts.isExpression);
+            var expression = createAssignmentCallback
+                ? createAssignmentCallback(target, value, location)
+                : ts.setTextRange(ts.createAssignment(ts.visitNode(target, visitor, ts.isExpression), value), location);
+            expression.original = original;
+            emitExpression(expression);
+        }
+    }
+    ts.flattenDestructuringAssignment = flattenDestructuringAssignment;
+    function bindingOrAssignmentElementAssignsToName(element, escapedName) {
+        var target = ts.getTargetOfBindingOrAssignmentElement(element);
+        if (ts.isBindingOrAssignmentPattern(target)) {
+            return bindingOrAssignmentPatternAssignsToName(target, escapedName);
+        }
+        else if (ts.isIdentifier(target)) {
+            return target.escapedText === escapedName;
+        }
+        return false;
+    }
+    function bindingOrAssignmentPatternAssignsToName(pattern, escapedName) {
+        var elements = ts.getElementsOfBindingOrAssignmentPattern(pattern);
+        for (var _i = 0, elements_3 = elements; _i < elements_3.length; _i++) {
+            var element = elements_3[_i];
+            if (bindingOrAssignmentElementAssignsToName(element, escapedName)) {
+                return true;
+            }
+        }
+        return false;
+    }
+    function bindingOrAssignmentElementContainsNonLiteralComputedName(element) {
+        var propertyName = ts.tryGetPropertyNameOfBindingOrAssignmentElement(element);
+        if (propertyName && ts.isComputedPropertyName(propertyName) && !ts.isLiteralExpression(propertyName.expression)) {
+            return true;
+        }
+        var target = ts.getTargetOfBindingOrAssignmentElement(element);
+        return !!target && ts.isBindingOrAssignmentPattern(target) && bindingOrAssignmentPatternContainsNonLiteralComputedName(target);
+    }
+    function bindingOrAssignmentPatternContainsNonLiteralComputedName(pattern) {
+        return !!ts.forEach(ts.getElementsOfBindingOrAssignmentPattern(pattern), bindingOrAssignmentElementContainsNonLiteralComputedName);
+    }
+    function flattenDestructuringBinding(node, visitor, context, level, rval, hoistTempVariables, skipInitializer) {
+        if (hoistTempVariables === void 0) { hoistTempVariables = false; }
+        var pendingExpressions;
+        var pendingDeclarations = [];
+        var declarations = [];
+        var flattenContext = {
+            context: context,
+            level: level,
+            downlevelIteration: !!context.getCompilerOptions().downlevelIteration,
+            hoistTempVariables: hoistTempVariables,
+            emitExpression: emitExpression,
+            emitBindingOrAssignment: emitBindingOrAssignment,
+            createArrayBindingOrAssignmentPattern: makeArrayBindingPattern,
+            createObjectBindingOrAssignmentPattern: makeObjectBindingPattern,
+            createArrayBindingOrAssignmentElement: makeBindingElement,
+            visitor: visitor
+        };
+        if (ts.isVariableDeclaration(node)) {
+            var initializer = ts.getInitializerOfBindingOrAssignmentElement(node);
+            if (initializer && (ts.isIdentifier(initializer) && bindingOrAssignmentElementAssignsToName(node, initializer.escapedText) ||
+                bindingOrAssignmentElementContainsNonLiteralComputedName(node))) {
+                initializer = ensureIdentifier(flattenContext, initializer, false, initializer);
+                node = ts.updateVariableDeclaration(node, node.name, node.type, initializer);
+            }
+        }
+        flattenBindingOrAssignmentElement(flattenContext, node, rval, node, skipInitializer);
+        if (pendingExpressions) {
+            var temp = ts.createTempVariable(undefined);
+            if (hoistTempVariables) {
+                var value = ts.inlineExpressions(pendingExpressions);
+                pendingExpressions = undefined;
+                emitBindingOrAssignment(temp, value, undefined, undefined);
+            }
+            else {
+                context.hoistVariableDeclaration(temp);
+                var pendingDeclaration = ts.last(pendingDeclarations);
+                pendingDeclaration.pendingExpressions = ts.append(pendingDeclaration.pendingExpressions, ts.createAssignment(temp, pendingDeclaration.value));
+                ts.addRange(pendingDeclaration.pendingExpressions, pendingExpressions);
+                pendingDeclaration.value = temp;
+            }
+        }
+        for (var _i = 0, pendingDeclarations_1 = pendingDeclarations; _i < pendingDeclarations_1.length; _i++) {
+            var _a = pendingDeclarations_1[_i], pendingExpressions_1 = _a.pendingExpressions, name = _a.name, value = _a.value, location = _a.location, original = _a.original;
+            var variable = ts.createVariableDeclaration(name, undefined, pendingExpressions_1 ? ts.inlineExpressions(ts.append(pendingExpressions_1, value)) : value);
+            variable.original = original;
+            ts.setTextRange(variable, location);
+            ts.aggregateTransformFlags(variable);
+            declarations.push(variable);
+        }
+        return declarations;
+        function emitExpression(value) {
+            pendingExpressions = ts.append(pendingExpressions, value);
+        }
+        function emitBindingOrAssignment(target, value, location, original) {
+            ts.Debug.assertNode(target, ts.isBindingName);
+            if (pendingExpressions) {
+                value = ts.inlineExpressions(ts.append(pendingExpressions, value));
+                pendingExpressions = undefined;
+            }
+            pendingDeclarations.push({ pendingExpressions: pendingExpressions, name: target, value: value, location: location, original: original });
+        }
+    }
+    ts.flattenDestructuringBinding = flattenDestructuringBinding;
+    function flattenBindingOrAssignmentElement(flattenContext, element, value, location, skipInitializer) {
+        if (!skipInitializer) {
+            var initializer = ts.visitNode(ts.getInitializerOfBindingOrAssignmentElement(element), flattenContext.visitor, ts.isExpression);
+            if (initializer) {
+                value = value ? createDefaultValueCheck(flattenContext, value, initializer, location) : initializer;
+            }
+            else if (!value) {
+                value = ts.createVoidZero();
+            }
+        }
+        var bindingTarget = ts.getTargetOfBindingOrAssignmentElement(element);
+        if (ts.isObjectBindingOrAssignmentPattern(bindingTarget)) {
+            flattenObjectBindingOrAssignmentPattern(flattenContext, element, bindingTarget, value, location);
+        }
+        else if (ts.isArrayBindingOrAssignmentPattern(bindingTarget)) {
+            flattenArrayBindingOrAssignmentPattern(flattenContext, element, bindingTarget, value, location);
+        }
+        else {
+            flattenContext.emitBindingOrAssignment(bindingTarget, value, location, element);
+        }
+    }
+    function flattenObjectBindingOrAssignmentPattern(flattenContext, parent, pattern, value, location) {
+        var elements = ts.getElementsOfBindingOrAssignmentPattern(pattern);
+        var numElements = elements.length;
+        if (numElements !== 1) {
+            var reuseIdentifierExpressions = !ts.isDeclarationBindingElement(parent) || numElements !== 0;
+            value = ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location);
+        }
+        var bindingElements;
+        var computedTempVariables;
+        for (var i = 0; i < numElements; i++) {
+            var element = elements[i];
+            if (!ts.getRestIndicatorOfBindingOrAssignmentElement(element)) {
+                var propertyName = ts.getPropertyNameOfBindingOrAssignmentElement(element);
+                if (flattenContext.level >= 1
+                    && !(element.transformFlags & (8192 | 16384))
+                    && !(ts.getTargetOfBindingOrAssignmentElement(element).transformFlags & (8192 | 16384))
+                    && !ts.isComputedPropertyName(propertyName)) {
+                    bindingElements = ts.append(bindingElements, ts.visitNode(element, flattenContext.visitor));
+                }
+                else {
+                    if (bindingElements) {
+                        flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+                        bindingElements = undefined;
+                    }
+                    var rhsValue = createDestructuringPropertyAccess(flattenContext, value, propertyName);
+                    if (ts.isComputedPropertyName(propertyName)) {
+                        computedTempVariables = ts.append(computedTempVariables, rhsValue.argumentExpression);
+                    }
+                    flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
+                }
+            }
+            else if (i === numElements - 1) {
+                if (bindingElements) {
+                    flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+                    bindingElements = undefined;
+                }
+                var rhsValue = createRestCall(flattenContext.context, value, elements, computedTempVariables, pattern);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
+            }
+        }
+        if (bindingElements) {
+            flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+        }
+    }
+    function flattenArrayBindingOrAssignmentPattern(flattenContext, parent, pattern, value, location) {
+        var elements = ts.getElementsOfBindingOrAssignmentPattern(pattern);
+        var numElements = elements.length;
+        if (flattenContext.level < 1 && flattenContext.downlevelIteration) {
+            value = ensureIdentifier(flattenContext, ts.createReadHelper(flattenContext.context, value, numElements > 0 && ts.getRestIndicatorOfBindingOrAssignmentElement(elements[numElements - 1])
+                ? undefined
+                : numElements, location), false, location);
+        }
+        else if (numElements !== 1 && (flattenContext.level < 1 || numElements === 0)
+            || ts.every(elements, ts.isOmittedExpression)) {
+            var reuseIdentifierExpressions = !ts.isDeclarationBindingElement(parent) || numElements !== 0;
+            value = ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location);
+        }
+        var bindingElements;
+        var restContainingElements;
+        for (var i = 0; i < numElements; i++) {
+            var element = elements[i];
+            if (flattenContext.level >= 1) {
+                if (element.transformFlags & 16384) {
+                    var temp = ts.createTempVariable(undefined);
+                    if (flattenContext.hoistTempVariables) {
+                        flattenContext.context.hoistVariableDeclaration(temp);
+                    }
+                    restContainingElements = ts.append(restContainingElements, [temp, element]);
+                    bindingElements = ts.append(bindingElements, flattenContext.createArrayBindingOrAssignmentElement(temp));
+                }
+                else {
+                    bindingElements = ts.append(bindingElements, element);
+                }
+            }
+            else if (ts.isOmittedExpression(element)) {
+                continue;
+            }
+            else if (!ts.getRestIndicatorOfBindingOrAssignmentElement(element)) {
+                var rhsValue = ts.createElementAccess(value, i);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
+            }
+            else if (i === numElements - 1) {
+                var rhsValue = ts.createArraySlice(value, i);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
+            }
+        }
+        if (bindingElements) {
+            flattenContext.emitBindingOrAssignment(flattenContext.createArrayBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+        }
+        if (restContainingElements) {
+            for (var _i = 0, restContainingElements_1 = restContainingElements; _i < restContainingElements_1.length; _i++) {
+                var _a = restContainingElements_1[_i], id = _a[0], element = _a[1];
+                flattenBindingOrAssignmentElement(flattenContext, element, id, element);
+            }
+        }
+    }
+    function createDefaultValueCheck(flattenContext, value, defaultValue, location) {
+        value = ensureIdentifier(flattenContext, value, true, location);
+        return ts.createConditional(ts.createTypeCheck(value, "undefined"), defaultValue, value);
+    }
+    function createDestructuringPropertyAccess(flattenContext, value, propertyName) {
+        if (ts.isComputedPropertyName(propertyName)) {
+            var argumentExpression = ensureIdentifier(flattenContext, ts.visitNode(propertyName.expression, flattenContext.visitor), false, propertyName);
+            return ts.createElementAccess(value, argumentExpression);
+        }
+        else if (ts.isStringOrNumericLiteralLike(propertyName)) {
+            var argumentExpression = ts.getSynthesizedClone(propertyName);
+            argumentExpression.text = argumentExpression.text;
+            return ts.createElementAccess(value, argumentExpression);
+        }
+        else {
+            var name = ts.createIdentifier(ts.idText(propertyName));
+            return ts.createPropertyAccess(value, name);
+        }
+    }
+    function ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location) {
+        if (ts.isIdentifier(value) && reuseIdentifierExpressions) {
+            return value;
+        }
+        else {
+            var temp = ts.createTempVariable(undefined);
+            if (flattenContext.hoistTempVariables) {
+                flattenContext.context.hoistVariableDeclaration(temp);
+                flattenContext.emitExpression(ts.setTextRange(ts.createAssignment(temp, value), location));
+            }
+            else {
+                flattenContext.emitBindingOrAssignment(temp, value, location, undefined);
+            }
+            return temp;
+        }
+    }
+    function makeArrayBindingPattern(elements) {
+        ts.Debug.assertEachNode(elements, ts.isArrayBindingElement);
+        return ts.createArrayBindingPattern(elements);
+    }
+    function makeArrayAssignmentPattern(elements) {
+        return ts.createArrayLiteral(ts.map(elements, ts.convertToArrayAssignmentElement));
+    }
+    function makeObjectBindingPattern(elements) {
+        ts.Debug.assertEachNode(elements, ts.isBindingElement);
+        return ts.createObjectBindingPattern(elements);
+    }
+    function makeObjectAssignmentPattern(elements) {
+        return ts.createObjectLiteral(ts.map(elements, ts.convertToObjectAssignmentElement));
+    }
+    function makeBindingElement(name) {
+        return ts.createBindingElement(undefined, undefined, name);
+    }
+    function makeAssignmentElement(name) {
+        return name;
+    }
+    ts.restHelper = {
+        name: "typescript:rest",
+        importName: "__rest",
+        scoped: false,
+        text: "\n            var __rest = (this && this.__rest) || function (s, e) {\n                var t = {};\n                for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\n                    t[p] = s[p];\n                if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\n                    for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\n                        if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\n                            t[p[i]] = s[p[i]];\n                    }\n                return t;\n            };"
+    };
+    function createRestCall(context, value, elements, computedTempVariables, location) {
+        context.requestEmitHelper(ts.restHelper);
+        var propertyNames = [];
+        var computedTempVariableOffset = 0;
+        for (var i = 0; i < elements.length - 1; i++) {
+            var propertyName = ts.getPropertyNameOfBindingOrAssignmentElement(elements[i]);
+            if (propertyName) {
+                if (ts.isComputedPropertyName(propertyName)) {
+                    var temp = computedTempVariables[computedTempVariableOffset];
+                    computedTempVariableOffset++;
+                    propertyNames.push(ts.createConditional(ts.createTypeCheck(temp, "symbol"), temp, ts.createAdd(temp, ts.createLiteral(""))));
+                }
+                else {
+                    propertyNames.push(ts.createLiteral(propertyName));
+                }
+            }
+        }
+        return ts.createCall(ts.getUnscopedHelperName("__rest"), undefined, [
+            value,
+            ts.setTextRange(ts.createArrayLiteral(propertyNames), location)
+        ]);
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var ProcessLevel;
+    (function (ProcessLevel) {
+        ProcessLevel[ProcessLevel["LiftRestriction"] = 0] = "LiftRestriction";
+        ProcessLevel[ProcessLevel["All"] = 1] = "All";
+    })(ProcessLevel = ts.ProcessLevel || (ts.ProcessLevel = {}));
+    function processTaggedTemplateExpression(context, node, visitor, currentSourceFile, recordTaggedTemplateString, level) {
+        var tag = ts.visitNode(node.tag, visitor, ts.isExpression);
+        var templateArguments = [undefined];
+        var cookedStrings = [];
+        var rawStrings = [];
+        var template = node.template;
+        if (level === ProcessLevel.LiftRestriction && !ts.hasInvalidEscape(template))
+            return node;
+        if (ts.isNoSubstitutionTemplateLiteral(template)) {
+            cookedStrings.push(createTemplateCooked(template));
+            rawStrings.push(getRawLiteral(template, currentSourceFile));
+        }
+        else {
+            cookedStrings.push(createTemplateCooked(template.head));
+            rawStrings.push(getRawLiteral(template.head, currentSourceFile));
+            for (var _i = 0, _a = template.templateSpans; _i < _a.length; _i++) {
+                var templateSpan = _a[_i];
+                cookedStrings.push(createTemplateCooked(templateSpan.literal));
+                rawStrings.push(getRawLiteral(templateSpan.literal, currentSourceFile));
+                templateArguments.push(ts.visitNode(templateSpan.expression, visitor, ts.isExpression));
+            }
+        }
+        var helperCall = createTemplateObjectHelper(context, ts.createArrayLiteral(cookedStrings), ts.createArrayLiteral(rawStrings));
+        if (ts.isExternalModule(currentSourceFile)) {
+            var tempVar = ts.createUniqueName("templateObject");
+            recordTaggedTemplateString(tempVar);
+            templateArguments[0] = ts.createLogicalOr(tempVar, ts.createAssignment(tempVar, helperCall));
+        }
+        else {
+            templateArguments[0] = helperCall;
+        }
+        return ts.createCall(tag, undefined, templateArguments);
+    }
+    ts.processTaggedTemplateExpression = processTaggedTemplateExpression;
+    function createTemplateCooked(template) {
+        return template.templateFlags ? ts.createIdentifier("undefined") : ts.createLiteral(template.text);
+    }
+    function getRawLiteral(node, currentSourceFile) {
+        var text = node.rawText;
+        if (text === undefined) {
+            text = ts.getSourceTextOfNodeFromSourceFile(currentSourceFile, node);
+            var isLast = node.kind === 14 || node.kind === 17;
+            text = text.substring(1, text.length - (isLast ? 1 : 2));
+        }
+        text = text.replace(/\r\n?/g, "\n");
+        return ts.setTextRange(ts.createLiteral(text), node);
+    }
+    function createTemplateObjectHelper(context, cooked, raw) {
+        context.requestEmitHelper(ts.templateObjectHelper);
+        return ts.createCall(ts.getUnscopedHelperName("__makeTemplateObject"), undefined, [
+            cooked,
+            raw
+        ]);
+    }
+    ts.templateObjectHelper = {
+        name: "typescript:makeTemplateObject",
+        importName: "__makeTemplateObject",
+        scoped: false,
+        priority: 0,
+        text: "\n            var __makeTemplateObject = (this && this.__makeTemplateObject) || function (cooked, raw) {\n                if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\n                return cooked;\n            };"
+    };
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var USE_NEW_TYPE_METADATA_FORMAT = false;
+    function transformTypeScript(context) {
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var resolver = context.getEmitResolver();
+        var compilerOptions = context.getCompilerOptions();
+        var strictNullChecks = ts.getStrictOptionValue(compilerOptions, "strictNullChecks");
+        var languageVersion = ts.getEmitScriptTarget(compilerOptions);
+        var moduleKind = ts.getEmitModuleKind(compilerOptions);
+        var previousOnEmitNode = context.onEmitNode;
+        var previousOnSubstituteNode = context.onSubstituteNode;
+        context.onEmitNode = onEmitNode;
+        context.onSubstituteNode = onSubstituteNode;
+        context.enableSubstitution(194);
+        context.enableSubstitution(195);
+        var currentSourceFile;
+        var currentNamespace;
+        var currentNamespaceContainerName;
+        var currentLexicalScope;
+        var currentNameScope;
+        var currentScopeFirstDeclarationsOfName;
+        var currentClassHasParameterProperties;
+        var enabledSubstitutions;
+        var classAliases;
+        var applicableSubstitutions;
+        return transformSourceFileOrBundle;
+        function transformSourceFileOrBundle(node) {
+            if (node.kind === 291) {
+                return transformBundle(node);
+            }
+            return transformSourceFile(node);
+        }
+        function transformBundle(node) {
+            return ts.createBundle(node.sourceFiles.map(transformSourceFile), ts.mapDefined(node.prepends, function (prepend) {
+                if (prepend.kind === 293) {
+                    return ts.createUnparsedSourceFile(prepend, "js");
+                }
+                return prepend;
+            }));
+        }
+        function transformSourceFile(node) {
+            if (node.isDeclarationFile) {
+                return node;
+            }
+            currentSourceFile = node;
+            var visited = saveStateAndInvoke(node, visitSourceFile);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
+        }
+        function saveStateAndInvoke(node, f) {
+            var savedCurrentScope = currentLexicalScope;
+            var savedCurrentNameScope = currentNameScope;
+            var savedCurrentScopeFirstDeclarationsOfName = currentScopeFirstDeclarationsOfName;
+            var savedCurrentClassHasParameterProperties = currentClassHasParameterProperties;
+            onBeforeVisitNode(node);
+            var visited = f(node);
+            if (currentLexicalScope !== savedCurrentScope) {
+                currentScopeFirstDeclarationsOfName = savedCurrentScopeFirstDeclarationsOfName;
+            }
+            currentLexicalScope = savedCurrentScope;
+            currentNameScope = savedCurrentNameScope;
+            currentClassHasParameterProperties = savedCurrentClassHasParameterProperties;
+            return visited;
+        }
+        function onBeforeVisitNode(node) {
+            switch (node.kind) {
+                case 290:
+                case 251:
+                case 250:
+                case 223:
+                    currentLexicalScope = node;
+                    currentNameScope = undefined;
+                    currentScopeFirstDeclarationsOfName = undefined;
+                    break;
+                case 245:
+                case 244:
+                    if (ts.hasModifier(node, 2)) {
+                        break;
+                    }
+                    if (node.name) {
+                        recordEmittedDeclarationInScope(node);
+                    }
+                    else {
+                        ts.Debug.assert(node.kind === 245 || ts.hasModifier(node, 512));
+                    }
+                    if (ts.isClassDeclaration(node)) {
+                        currentNameScope = node;
+                    }
+                    break;
+            }
+        }
+        function visitor(node) {
+            return saveStateAndInvoke(node, visitorWorker);
+        }
+        function visitorWorker(node) {
+            if (node.transformFlags & 1) {
+                return visitTypeScript(node);
+            }
+            return node;
+        }
+        function sourceElementVisitor(node) {
+            return saveStateAndInvoke(node, sourceElementVisitorWorker);
+        }
+        function sourceElementVisitorWorker(node) {
+            switch (node.kind) {
+                case 254:
+                case 253:
+                case 259:
+                case 260:
+                    return visitEllidableStatement(node);
+                default:
+                    return visitorWorker(node);
+            }
+        }
+        function visitEllidableStatement(node) {
+            var parsed = ts.getParseTreeNode(node);
+            if (parsed !== node) {
+                if (node.transformFlags & 1) {
+                    return ts.visitEachChild(node, visitor, context);
+                }
+                return node;
+            }
+            switch (node.kind) {
+                case 254:
+                    return visitImportDeclaration(node);
+                case 253:
+                    return visitImportEqualsDeclaration(node);
+                case 259:
+                    return visitExportAssignment(node);
+                case 260:
+                    return visitExportDeclaration(node);
+                default:
+                    ts.Debug.fail("Unhandled ellided statement");
+            }
+        }
+        function namespaceElementVisitor(node) {
+            return saveStateAndInvoke(node, namespaceElementVisitorWorker);
+        }
+        function namespaceElementVisitorWorker(node) {
+            if (node.kind === 260 ||
+                node.kind === 254 ||
+                node.kind === 255 ||
+                (node.kind === 253 &&
+                    node.moduleReference.kind === 265)) {
+                return undefined;
+            }
+            else if (node.transformFlags & 1 || ts.hasModifier(node, 1)) {
+                return visitTypeScript(node);
+            }
+            return node;
+        }
+        function classElementVisitor(node) {
+            return saveStateAndInvoke(node, classElementVisitorWorker);
+        }
+        function classElementVisitorWorker(node) {
+            switch (node.kind) {
+                case 162:
+                    return visitConstructor(node);
+                case 159:
+                    return visitPropertyDeclaration(node);
+                case 167:
+                case 163:
+                case 164:
+                case 161:
+                    return visitorWorker(node);
+                case 222:
+                    return node;
+                default:
+                    return ts.Debug.failBadSyntaxKind(node);
+            }
+        }
+        function modifierVisitor(node) {
+            if (ts.modifierToFlag(node.kind) & 2270) {
+                return undefined;
+            }
+            else if (currentNamespace && node.kind === 89) {
+                return undefined;
+            }
+            return node;
+        }
+        function visitTypeScript(node) {
+            if (ts.isStatement(node) && ts.hasModifier(node, 2)) {
+                return ts.createNotEmittedStatement(node);
+            }
+            switch (node.kind) {
+                case 89:
+                case 84:
+                    return currentNamespace ? undefined : node;
+                case 119:
+                case 117:
+                case 118:
+                case 122:
+                case 81:
+                case 130:
+                case 138:
+                case 174:
+                case 175:
+                case 176:
+                case 177:
+                case 173:
+                case 168:
+                case 155:
+                case 125:
+                case 148:
+                case 128:
+                case 143:
+                case 140:
+                case 137:
+                case 110:
+                case 144:
+                case 171:
+                case 170:
+                case 172:
+                case 169:
+                case 178:
+                case 179:
+                case 180:
+                case 182:
+                case 183:
+                case 184:
+                case 185:
+                case 186:
+                case 187:
+                case 167:
+                case 157:
+                case 247:
+                    return undefined;
+                case 159:
+                    return visitPropertyDeclaration(node);
+                case 252:
+                    return undefined;
+                case 162:
+                    return visitConstructor(node);
+                case 246:
+                    return ts.createNotEmittedStatement(node);
+                case 245:
+                    return visitClassDeclaration(node);
+                case 214:
+                    return visitClassExpression(node);
+                case 279:
+                    return visitHeritageClause(node);
+                case 216:
+                    return visitExpressionWithTypeArguments(node);
+                case 161:
+                    return visitMethodDeclaration(node);
+                case 163:
+                    return visitGetAccessor(node);
+                case 164:
+                    return visitSetAccessor(node);
+                case 244:
+                    return visitFunctionDeclaration(node);
+                case 201:
+                    return visitFunctionExpression(node);
+                case 202:
+                    return visitArrowFunction(node);
+                case 156:
+                    return visitParameter(node);
+                case 200:
+                    return visitParenthesizedExpression(node);
+                case 199:
+                case 217:
+                    return visitAssertionExpression(node);
+                case 196:
+                    return visitCallExpression(node);
+                case 197:
+                    return visitNewExpression(node);
+                case 198:
+                    return visitTaggedTemplateExpression(node);
+                case 218:
+                    return visitNonNullExpression(node);
+                case 248:
+                    return visitEnumDeclaration(node);
+                case 225:
+                    return visitVariableStatement(node);
+                case 242:
+                    return visitVariableDeclaration(node);
+                case 249:
+                    return visitModuleDeclaration(node);
+                case 253:
+                    return visitImportEqualsDeclaration(node);
+                case 267:
+                    return visitJsxSelfClosingElement(node);
+                case 268:
+                    return visitJsxJsxOpeningElement(node);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function visitSourceFile(node) {
+            var alwaysStrict = ts.getStrictOptionValue(compilerOptions, "alwaysStrict") &&
+                !(ts.isExternalModule(node) && moduleKind >= ts.ModuleKind.ES2015) &&
+                !ts.isJsonSourceFile(node);
+            return ts.updateSourceFileNode(node, ts.visitLexicalEnvironment(node.statements, sourceElementVisitor, context, 0, alwaysStrict));
+        }
+        function shouldEmitDecorateCallForClass(node) {
+            if (node.decorators && node.decorators.length > 0) {
+                return true;
+            }
+            var constructor = ts.getFirstConstructorWithBody(node);
+            if (constructor) {
+                return ts.forEach(constructor.parameters, shouldEmitDecorateCallForParameter);
+            }
+            return false;
+        }
+        function shouldEmitDecorateCallForParameter(parameter) {
+            return parameter.decorators !== undefined && parameter.decorators.length > 0;
+        }
+        function getClassFacts(node, staticProperties) {
+            var facts = 0;
+            if (ts.some(staticProperties))
+                facts |= 1;
+            var extendsClauseElement = ts.getEffectiveBaseTypeNode(node);
+            if (extendsClauseElement && ts.skipOuterExpressions(extendsClauseElement.expression).kind !== 100)
+                facts |= 64;
+            if (shouldEmitDecorateCallForClass(node))
+                facts |= 2;
+            if (ts.childIsDecorated(node))
+                facts |= 4;
+            if (isExportOfNamespace(node))
+                facts |= 8;
+            else if (isDefaultExternalModuleExport(node))
+                facts |= 32;
+            else if (isNamedExternalModuleExport(node))
+                facts |= 16;
+            if (languageVersion <= 1 && (facts & 7))
+                facts |= 128;
+            return facts;
+        }
+        function hasTypeScriptClassSyntax(node) {
+            return !!(node.transformFlags & 2048);
+        }
+        function isClassLikeDeclarationWithTypeScriptSyntax(node) {
+            return ts.some(node.decorators)
+                || ts.some(node.typeParameters)
+                || ts.some(node.heritageClauses, hasTypeScriptClassSyntax)
+                || ts.some(node.members, hasTypeScriptClassSyntax);
+        }
+        function visitClassDeclaration(node) {
+            if (!isClassLikeDeclarationWithTypeScriptSyntax(node) && !(currentNamespace && ts.hasModifier(node, 1))) {
+                return ts.visitEachChild(node, visitor, context);
+            }
+            var staticProperties = ts.getProperties(node, true, true);
+            var facts = getClassFacts(node, staticProperties);
+            if (facts & 128) {
+                context.startLexicalEnvironment();
+            }
+            var name = node.name || (facts & 5 ? ts.getGeneratedNameForNode(node) : undefined);
+            var classStatement = facts & 2
+                ? createClassDeclarationHeadWithDecorators(node, name)
+                : createClassDeclarationHeadWithoutDecorators(node, name, facts);
+            var statements = [classStatement];
+            addClassElementDecorationStatements(statements, node, false);
+            addClassElementDecorationStatements(statements, node, true);
+            addConstructorDecorationStatement(statements, node);
+            if (facts & 128) {
+                var closingBraceLocation = ts.createTokenRange(ts.skipTrivia(currentSourceFile.text, node.members.end), 19);
+                var localName = ts.getInternalName(node);
+                var outer = ts.createPartiallyEmittedExpression(localName);
+                outer.end = closingBraceLocation.end;
+                ts.setEmitFlags(outer, 1536);
+                var statement = ts.createReturn(outer);
+                statement.pos = closingBraceLocation.pos;
+                ts.setEmitFlags(statement, 1536 | 384);
+                statements.push(statement);
+                ts.insertStatementsAfterStandardPrologue(statements, context.endLexicalEnvironment());
+                var iife = ts.createImmediatelyInvokedArrowFunction(statements);
+                ts.setEmitFlags(iife, 33554432);
+                var varStatement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                    ts.createVariableDeclaration(ts.getLocalName(node, false, false), undefined, iife)
+                ]));
+                ts.setOriginalNode(varStatement, node);
+                ts.setCommentRange(varStatement, node);
+                ts.setSourceMapRange(varStatement, ts.moveRangePastDecorators(node));
+                ts.startOnNewLine(varStatement);
+                statements = [varStatement];
+            }
+            if (facts & 8) {
+                addExportMemberAssignment(statements, node);
+            }
+            else if (facts & 128 || facts & 2) {
+                if (facts & 32) {
+                    statements.push(ts.createExportDefault(ts.getLocalName(node, false, true)));
+                }
+                else if (facts & 16) {
+                    statements.push(ts.createExternalModuleExport(ts.getLocalName(node, false, true)));
+                }
+            }
+            if (statements.length > 1) {
+                statements.push(ts.createEndOfDeclarationMarker(node));
+                ts.setEmitFlags(classStatement, ts.getEmitFlags(classStatement) | 4194304);
+            }
+            return ts.singleOrMany(statements);
+        }
+        function createClassDeclarationHeadWithoutDecorators(node, name, facts) {
+            var modifiers = !(facts & 128)
+                ? ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier)
+                : undefined;
+            var classDeclaration = ts.createClassDeclaration(undefined, modifiers, name, undefined, ts.visitNodes(node.heritageClauses, visitor, ts.isHeritageClause), transformClassMembers(node));
+            var emitFlags = ts.getEmitFlags(node);
+            if (facts & 1) {
+                emitFlags |= 32;
+            }
+            ts.aggregateTransformFlags(classDeclaration);
+            ts.setTextRange(classDeclaration, node);
+            ts.setOriginalNode(classDeclaration, node);
+            ts.setEmitFlags(classDeclaration, emitFlags);
+            return classDeclaration;
+        }
+        function createClassDeclarationHeadWithDecorators(node, name) {
+            var location = ts.moveRangePastDecorators(node);
+            var classAlias = getClassAliasIfNeeded(node);
+            var declName = ts.getLocalName(node, false, true);
+            var heritageClauses = ts.visitNodes(node.heritageClauses, visitor, ts.isHeritageClause);
+            var members = transformClassMembers(node);
+            var classExpression = ts.createClassExpression(undefined, name, undefined, heritageClauses, members);
+            ts.aggregateTransformFlags(classExpression);
+            ts.setOriginalNode(classExpression, node);
+            ts.setTextRange(classExpression, location);
+            var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(declName, undefined, classAlias ? ts.createAssignment(classAlias, classExpression) : classExpression)
+            ], 1));
+            ts.setOriginalNode(statement, node);
+            ts.setTextRange(statement, location);
+            ts.setCommentRange(statement, node);
+            return statement;
+        }
+        function visitClassExpression(node) {
+            if (!isClassLikeDeclarationWithTypeScriptSyntax(node)) {
+                return ts.visitEachChild(node, visitor, context);
+            }
+            var classExpression = ts.createClassExpression(undefined, node.name, undefined, ts.visitNodes(node.heritageClauses, visitor, ts.isHeritageClause), transformClassMembers(node));
+            ts.aggregateTransformFlags(classExpression);
+            ts.setOriginalNode(classExpression, node);
+            ts.setTextRange(classExpression, node);
+            return classExpression;
+        }
+        function transformClassMembers(node) {
+            var members = [];
+            var constructor = ts.getFirstConstructorWithBody(node);
+            var parametersWithPropertyAssignments = constructor &&
+                ts.filter(constructor.parameters, function (p) { return ts.isParameterPropertyDeclaration(p, constructor); });
+            if (parametersWithPropertyAssignments) {
+                for (var _i = 0, parametersWithPropertyAssignments_1 = parametersWithPropertyAssignments; _i < parametersWithPropertyAssignments_1.length; _i++) {
+                    var parameter = parametersWithPropertyAssignments_1[_i];
+                    if (ts.isIdentifier(parameter.name)) {
+                        members.push(ts.setOriginalNode(ts.aggregateTransformFlags(ts.createProperty(undefined, undefined, parameter.name, undefined, undefined, undefined)), parameter));
+                    }
+                }
+            }
+            ts.addRange(members, ts.visitNodes(node.members, classElementVisitor, ts.isClassElement));
+            return ts.setTextRange(ts.createNodeArray(members), node.members);
+        }
+        function getDecoratedClassElements(node, isStatic) {
+            return ts.filter(node.members, isStatic ? function (m) { return isStaticDecoratedClassElement(m, node); } : function (m) { return isInstanceDecoratedClassElement(m, node); });
+        }
+        function isStaticDecoratedClassElement(member, parent) {
+            return isDecoratedClassElement(member, true, parent);
+        }
+        function isInstanceDecoratedClassElement(member, parent) {
+            return isDecoratedClassElement(member, false, parent);
+        }
+        function isDecoratedClassElement(member, isStatic, parent) {
+            return ts.nodeOrChildIsDecorated(member, parent)
+                && isStatic === ts.hasModifier(member, 32);
+        }
+        function getDecoratorsOfParameters(node) {
+            var decorators;
+            if (node) {
+                var parameters = node.parameters;
+                var firstParameterIsThis = parameters.length > 0 && ts.parameterIsThisKeyword(parameters[0]);
+                var firstParameterOffset = firstParameterIsThis ? 1 : 0;
+                var numParameters = firstParameterIsThis ? parameters.length - 1 : parameters.length;
+                for (var i = 0; i < numParameters; i++) {
+                    var parameter = parameters[i + firstParameterOffset];
+                    if (decorators || parameter.decorators) {
+                        if (!decorators) {
+                            decorators = new Array(numParameters);
+                        }
+                        decorators[i] = parameter.decorators;
+                    }
+                }
+            }
+            return decorators;
+        }
+        function getAllDecoratorsOfConstructor(node) {
+            var decorators = node.decorators;
+            var parameters = getDecoratorsOfParameters(ts.getFirstConstructorWithBody(node));
+            if (!decorators && !parameters) {
+                return undefined;
+            }
+            return {
+                decorators: decorators,
+                parameters: parameters
+            };
+        }
+        function getAllDecoratorsOfClassElement(node, member) {
+            switch (member.kind) {
+                case 163:
+                case 164:
+                    return getAllDecoratorsOfAccessors(node, member);
+                case 161:
+                    return getAllDecoratorsOfMethod(member);
+                case 159:
+                    return getAllDecoratorsOfProperty(member);
+                default:
+                    return undefined;
+            }
+        }
+        function getAllDecoratorsOfAccessors(node, accessor) {
+            if (!accessor.body) {
+                return undefined;
+            }
+            var _a = ts.getAllAccessorDeclarations(node.members, accessor), firstAccessor = _a.firstAccessor, secondAccessor = _a.secondAccessor, setAccessor = _a.setAccessor;
+            var firstAccessorWithDecorators = firstAccessor.decorators ? firstAccessor : secondAccessor && secondAccessor.decorators ? secondAccessor : undefined;
+            if (!firstAccessorWithDecorators || accessor !== firstAccessorWithDecorators) {
+                return undefined;
+            }
+            var decorators = firstAccessorWithDecorators.decorators;
+            var parameters = getDecoratorsOfParameters(setAccessor);
+            if (!decorators && !parameters) {
+                return undefined;
+            }
+            return { decorators: decorators, parameters: parameters };
+        }
+        function getAllDecoratorsOfMethod(method) {
+            if (!method.body) {
+                return undefined;
+            }
+            var decorators = method.decorators;
+            var parameters = getDecoratorsOfParameters(method);
+            if (!decorators && !parameters) {
+                return undefined;
+            }
+            return { decorators: decorators, parameters: parameters };
+        }
+        function getAllDecoratorsOfProperty(property) {
+            var decorators = property.decorators;
+            if (!decorators) {
+                return undefined;
+            }
+            return { decorators: decorators };
+        }
+        function transformAllDecoratorsOfDeclaration(node, container, allDecorators) {
+            if (!allDecorators) {
+                return undefined;
+            }
+            var decoratorExpressions = [];
+            ts.addRange(decoratorExpressions, ts.map(allDecorators.decorators, transformDecorator));
+            ts.addRange(decoratorExpressions, ts.flatMap(allDecorators.parameters, transformDecoratorsOfParameter));
+            addTypeMetadata(node, container, decoratorExpressions);
+            return decoratorExpressions;
+        }
+        function addClassElementDecorationStatements(statements, node, isStatic) {
+            ts.addRange(statements, ts.map(generateClassElementDecorationExpressions(node, isStatic), expressionToStatement));
+        }
+        function generateClassElementDecorationExpressions(node, isStatic) {
+            var members = getDecoratedClassElements(node, isStatic);
+            var expressions;
+            for (var _i = 0, members_6 = members; _i < members_6.length; _i++) {
+                var member = members_6[_i];
+                var expression = generateClassElementDecorationExpression(node, member);
+                if (expression) {
+                    if (!expressions) {
+                        expressions = [expression];
+                    }
+                    else {
+                        expressions.push(expression);
+                    }
+                }
+            }
+            return expressions;
+        }
+        function generateClassElementDecorationExpression(node, member) {
+            var allDecorators = getAllDecoratorsOfClassElement(node, member);
+            var decoratorExpressions = transformAllDecoratorsOfDeclaration(member, node, allDecorators);
+            if (!decoratorExpressions) {
+                return undefined;
+            }
+            var prefix = getClassMemberPrefix(node, member);
+            var memberName = getExpressionForPropertyName(member, true);
+            var descriptor = languageVersion > 0
+                ? member.kind === 159
+                    ? ts.createVoidZero()
+                    : ts.createNull()
+                : undefined;
+            var helper = createDecorateHelper(context, decoratorExpressions, prefix, memberName, descriptor, ts.moveRangePastDecorators(member));
+            ts.setEmitFlags(helper, 1536);
+            return helper;
+        }
+        function addConstructorDecorationStatement(statements, node) {
+            var expression = generateConstructorDecorationExpression(node);
+            if (expression) {
+                statements.push(ts.setOriginalNode(ts.createExpressionStatement(expression), node));
+            }
+        }
+        function generateConstructorDecorationExpression(node) {
+            var allDecorators = getAllDecoratorsOfConstructor(node);
+            var decoratorExpressions = transformAllDecoratorsOfDeclaration(node, node, allDecorators);
+            if (!decoratorExpressions) {
+                return undefined;
+            }
+            var classAlias = classAliases && classAliases[ts.getOriginalNodeId(node)];
+            var localName = ts.getLocalName(node, false, true);
+            var decorate = createDecorateHelper(context, decoratorExpressions, localName);
+            var expression = ts.createAssignment(localName, classAlias ? ts.createAssignment(classAlias, decorate) : decorate);
+            ts.setEmitFlags(expression, 1536);
+            ts.setSourceMapRange(expression, ts.moveRangePastDecorators(node));
+            return expression;
+        }
+        function transformDecorator(decorator) {
+            return ts.visitNode(decorator.expression, visitor, ts.isExpression);
+        }
+        function transformDecoratorsOfParameter(decorators, parameterOffset) {
+            var expressions;
+            if (decorators) {
+                expressions = [];
+                for (var _i = 0, decorators_1 = decorators; _i < decorators_1.length; _i++) {
+                    var decorator = decorators_1[_i];
+                    var helper = createParamHelper(context, transformDecorator(decorator), parameterOffset, decorator.expression);
+                    ts.setEmitFlags(helper, 1536);
+                    expressions.push(helper);
+                }
+            }
+            return expressions;
+        }
+        function addTypeMetadata(node, container, decoratorExpressions) {
+            if (USE_NEW_TYPE_METADATA_FORMAT) {
+                addNewTypeMetadata(node, container, decoratorExpressions);
+            }
+            else {
+                addOldTypeMetadata(node, container, decoratorExpressions);
+            }
+        }
+        function addOldTypeMetadata(node, container, decoratorExpressions) {
+            if (compilerOptions.emitDecoratorMetadata) {
+                if (shouldAddTypeMetadata(node)) {
+                    decoratorExpressions.push(createMetadataHelper(context, "design:type", serializeTypeOfNode(node)));
+                }
+                if (shouldAddParamTypesMetadata(node)) {
+                    decoratorExpressions.push(createMetadataHelper(context, "design:paramtypes", serializeParameterTypesOfNode(node, container)));
+                }
+                if (shouldAddReturnTypeMetadata(node)) {
+                    decoratorExpressions.push(createMetadataHelper(context, "design:returntype", serializeReturnTypeOfNode(node)));
+                }
+            }
+        }
+        function addNewTypeMetadata(node, container, decoratorExpressions) {
+            if (compilerOptions.emitDecoratorMetadata) {
+                var properties = void 0;
+                if (shouldAddTypeMetadata(node)) {
+                    (properties || (properties = [])).push(ts.createPropertyAssignment("type", ts.createArrowFunction(undefined, undefined, [], undefined, ts.createToken(38), serializeTypeOfNode(node))));
+                }
+                if (shouldAddParamTypesMetadata(node)) {
+                    (properties || (properties = [])).push(ts.createPropertyAssignment("paramTypes", ts.createArrowFunction(undefined, undefined, [], undefined, ts.createToken(38), serializeParameterTypesOfNode(node, container))));
+                }
+                if (shouldAddReturnTypeMetadata(node)) {
+                    (properties || (properties = [])).push(ts.createPropertyAssignment("returnType", ts.createArrowFunction(undefined, undefined, [], undefined, ts.createToken(38), serializeReturnTypeOfNode(node))));
+                }
+                if (properties) {
+                    decoratorExpressions.push(createMetadataHelper(context, "design:typeinfo", ts.createObjectLiteral(properties, true)));
+                }
+            }
+        }
+        function shouldAddTypeMetadata(node) {
+            var kind = node.kind;
+            return kind === 161
+                || kind === 163
+                || kind === 164
+                || kind === 159;
+        }
+        function shouldAddReturnTypeMetadata(node) {
+            return node.kind === 161;
+        }
+        function shouldAddParamTypesMetadata(node) {
+            switch (node.kind) {
+                case 245:
+                case 214:
+                    return ts.getFirstConstructorWithBody(node) !== undefined;
+                case 161:
+                case 163:
+                case 164:
+                    return true;
+            }
+            return false;
+        }
+        function getAccessorTypeNode(node) {
+            var accessors = resolver.getAllAccessorDeclarations(node);
+            return accessors.setAccessor && ts.getSetAccessorTypeAnnotationNode(accessors.setAccessor)
+                || accessors.getAccessor && ts.getEffectiveReturnTypeNode(accessors.getAccessor);
+        }
+        function serializeTypeOfNode(node) {
+            switch (node.kind) {
+                case 159:
+                case 156:
+                    return serializeTypeNode(node.type);
+                case 164:
+                case 163:
+                    return serializeTypeNode(getAccessorTypeNode(node));
+                case 245:
+                case 214:
+                case 161:
+                    return ts.createIdentifier("Function");
+                default:
+                    return ts.createVoidZero();
+            }
+        }
+        function serializeParameterTypesOfNode(node, container) {
+            var valueDeclaration = ts.isClassLike(node)
+                ? ts.getFirstConstructorWithBody(node)
+                : ts.isFunctionLike(node) && ts.nodeIsPresent(node.body)
+                    ? node
+                    : undefined;
+            var expressions = [];
+            if (valueDeclaration) {
+                var parameters = getParametersOfDecoratedDeclaration(valueDeclaration, container);
+                var numParameters = parameters.length;
+                for (var i = 0; i < numParameters; i++) {
+                    var parameter = parameters[i];
+                    if (i === 0 && ts.isIdentifier(parameter.name) && parameter.name.escapedText === "this") {
+                        continue;
+                    }
+                    if (parameter.dotDotDotToken) {
+                        expressions.push(serializeTypeNode(ts.getRestParameterElementType(parameter.type)));
+                    }
+                    else {
+                        expressions.push(serializeTypeOfNode(parameter));
+                    }
+                }
+            }
+            return ts.createArrayLiteral(expressions);
+        }
+        function getParametersOfDecoratedDeclaration(node, container) {
+            if (container && node.kind === 163) {
+                var setAccessor = ts.getAllAccessorDeclarations(container.members, node).setAccessor;
+                if (setAccessor) {
+                    return setAccessor.parameters;
+                }
+            }
+            return node.parameters;
+        }
+        function serializeReturnTypeOfNode(node) {
+            if (ts.isFunctionLike(node) && node.type) {
+                return serializeTypeNode(node.type);
+            }
+            else if (ts.isAsyncFunction(node)) {
+                return ts.createIdentifier("Promise");
+            }
+            return ts.createVoidZero();
+        }
+        function serializeTypeNode(node) {
+            if (node === undefined) {
+                return ts.createIdentifier("Object");
+            }
+            switch (node.kind) {
+                case 110:
+                case 146:
+                case 100:
+                case 137:
+                    return ts.createVoidZero();
+                case 182:
+                    return serializeTypeNode(node.type);
+                case 170:
+                case 171:
+                    return ts.createIdentifier("Function");
+                case 174:
+                case 175:
+                    return ts.createIdentifier("Array");
+                case 168:
+                case 128:
+                    return ts.createIdentifier("Boolean");
+                case 143:
+                    return ts.createIdentifier("String");
+                case 141:
+                    return ts.createIdentifier("Object");
+                case 187:
+                    switch (node.literal.kind) {
+                        case 10:
+                            return ts.createIdentifier("String");
+                        case 207:
+                        case 8:
+                            return ts.createIdentifier("Number");
+                        case 9:
+                            return getGlobalBigIntNameWithFallback();
+                        case 106:
+                        case 91:
+                            return ts.createIdentifier("Boolean");
+                        default:
+                            return ts.Debug.failBadSyntaxKind(node.literal);
+                    }
+                case 140:
+                    return ts.createIdentifier("Number");
+                case 151:
+                    return getGlobalBigIntNameWithFallback();
+                case 144:
+                    return languageVersion < 2
+                        ? getGlobalSymbolNameWithFallback()
+                        : ts.createIdentifier("Symbol");
+                case 169:
+                    return serializeTypeReferenceNode(node);
+                case 179:
+                case 178:
+                    return serializeTypeList(node.types);
+                case 180:
+                    return serializeTypeList([node.trueType, node.falseType]);
+                case 184:
+                    if (node.operator === 138) {
+                        return serializeTypeNode(node.type);
+                    }
+                    break;
+                case 172:
+                case 185:
+                case 186:
+                case 173:
+                case 125:
+                case 148:
+                case 183:
+                case 188:
+                    break;
+                case 295:
+                case 296:
+                case 300:
+                case 301:
+                case 302:
+                    break;
+                case 297:
+                case 298:
+                case 299:
+                    return serializeTypeNode(node.type);
+                default:
+                    return ts.Debug.failBadSyntaxKind(node);
+            }
+            return ts.createIdentifier("Object");
+        }
+        function serializeTypeList(types) {
+            var serializedUnion;
+            for (var _i = 0, types_21 = types; _i < types_21.length; _i++) {
+                var typeNode = types_21[_i];
+                while (typeNode.kind === 182) {
+                    typeNode = typeNode.type;
+                }
+                if (typeNode.kind === 137) {
+                    continue;
+                }
+                if (!strictNullChecks && (typeNode.kind === 100 || typeNode.kind === 146)) {
+                    continue;
+                }
+                var serializedIndividual = serializeTypeNode(typeNode);
+                if (ts.isIdentifier(serializedIndividual) && serializedIndividual.escapedText === "Object") {
+                    return serializedIndividual;
+                }
+                else if (serializedUnion) {
+                    if (!ts.isIdentifier(serializedUnion) ||
+                        !ts.isIdentifier(serializedIndividual) ||
+                        serializedUnion.escapedText !== serializedIndividual.escapedText) {
+                        return ts.createIdentifier("Object");
+                    }
+                }
+                else {
+                    serializedUnion = serializedIndividual;
+                }
+            }
+            return serializedUnion || ts.createVoidZero();
+        }
+        function serializeTypeReferenceNode(node) {
+            var kind = resolver.getTypeReferenceSerializationKind(node.typeName, currentNameScope || currentLexicalScope);
+            switch (kind) {
+                case ts.TypeReferenceSerializationKind.Unknown:
+                    if (ts.findAncestor(node, function (n) { return n.parent && ts.isConditionalTypeNode(n.parent) && (n.parent.trueType === n || n.parent.falseType === n); })) {
+                        return ts.createIdentifier("Object");
+                    }
+                    var serialized = serializeEntityNameAsExpressionFallback(node.typeName);
+                    var temp = ts.createTempVariable(hoistVariableDeclaration);
+                    return ts.createConditional(ts.createTypeCheck(ts.createAssignment(temp, serialized), "function"), temp, ts.createIdentifier("Object"));
+                case ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue:
+                    return serializeEntityNameAsExpression(node.typeName);
+                case ts.TypeReferenceSerializationKind.VoidNullableOrNeverType:
+                    return ts.createVoidZero();
+                case ts.TypeReferenceSerializationKind.BigIntLikeType:
+                    return getGlobalBigIntNameWithFallback();
+                case ts.TypeReferenceSerializationKind.BooleanType:
+                    return ts.createIdentifier("Boolean");
+                case ts.TypeReferenceSerializationKind.NumberLikeType:
+                    return ts.createIdentifier("Number");
+                case ts.TypeReferenceSerializationKind.StringLikeType:
+                    return ts.createIdentifier("String");
+                case ts.TypeReferenceSerializationKind.ArrayLikeType:
+                    return ts.createIdentifier("Array");
+                case ts.TypeReferenceSerializationKind.ESSymbolType:
+                    return languageVersion < 2
+                        ? getGlobalSymbolNameWithFallback()
+                        : ts.createIdentifier("Symbol");
+                case ts.TypeReferenceSerializationKind.TypeWithCallSignature:
+                    return ts.createIdentifier("Function");
+                case ts.TypeReferenceSerializationKind.Promise:
+                    return ts.createIdentifier("Promise");
+                case ts.TypeReferenceSerializationKind.ObjectType:
+                    return ts.createIdentifier("Object");
+                default:
+                    return ts.Debug.assertNever(kind);
+            }
+        }
+        function createCheckedValue(left, right) {
+            return ts.createLogicalAnd(ts.createStrictInequality(ts.createTypeOf(left), ts.createLiteral("undefined")), right);
+        }
+        function serializeEntityNameAsExpressionFallback(node) {
+            if (node.kind === 75) {
+                var copied = serializeEntityNameAsExpression(node);
+                return createCheckedValue(copied, copied);
+            }
+            if (node.left.kind === 75) {
+                return createCheckedValue(serializeEntityNameAsExpression(node.left), serializeEntityNameAsExpression(node));
+            }
+            var left = serializeEntityNameAsExpressionFallback(node.left);
+            var temp = ts.createTempVariable(hoistVariableDeclaration);
+            return ts.createLogicalAnd(ts.createLogicalAnd(left.left, ts.createStrictInequality(ts.createAssignment(temp, left.right), ts.createVoidZero())), ts.createPropertyAccess(temp, node.right));
+        }
+        function serializeEntityNameAsExpression(node) {
+            switch (node.kind) {
+                case 75:
+                    var name = ts.getMutableClone(node);
+                    name.flags &= ~8;
+                    name.original = undefined;
+                    name.parent = ts.getParseTreeNode(currentLexicalScope);
+                    return name;
+                case 153:
+                    return serializeQualifiedNameAsExpression(node);
+            }
+        }
+        function serializeQualifiedNameAsExpression(node) {
+            return ts.createPropertyAccess(serializeEntityNameAsExpression(node.left), node.right);
+        }
+        function getGlobalSymbolNameWithFallback() {
+            return ts.createConditional(ts.createTypeCheck(ts.createIdentifier("Symbol"), "function"), ts.createIdentifier("Symbol"), ts.createIdentifier("Object"));
+        }
+        function getGlobalBigIntNameWithFallback() {
+            return languageVersion < 99
+                ? ts.createConditional(ts.createTypeCheck(ts.createIdentifier("BigInt"), "function"), ts.createIdentifier("BigInt"), ts.createIdentifier("Object"))
+                : ts.createIdentifier("BigInt");
+        }
+        function getExpressionForPropertyName(member, generateNameForComputedPropertyName) {
+            var name = member.name;
+            if (ts.isPrivateIdentifier(name)) {
+                return ts.createIdentifier("");
+            }
+            else if (ts.isComputedPropertyName(name)) {
+                return generateNameForComputedPropertyName && !ts.isSimpleInlineableExpression(name.expression)
+                    ? ts.getGeneratedNameForNode(name)
+                    : name.expression;
+            }
+            else if (ts.isIdentifier(name)) {
+                return ts.createLiteral(ts.idText(name));
+            }
+            else {
+                return ts.getSynthesizedClone(name);
+            }
+        }
+        function visitPropertyNameOfClassElement(member) {
+            var name = member.name;
+            if (ts.isComputedPropertyName(name) && ((!ts.hasStaticModifier(member) && currentClassHasParameterProperties) || ts.some(member.decorators))) {
+                var expression = ts.visitNode(name.expression, visitor, ts.isExpression);
+                var innerExpression = ts.skipPartiallyEmittedExpressions(expression);
+                if (!ts.isSimpleInlineableExpression(innerExpression)) {
+                    var generatedName = ts.getGeneratedNameForNode(name);
+                    hoistVariableDeclaration(generatedName);
+                    return ts.updateComputedPropertyName(name, ts.createAssignment(generatedName, expression));
+                }
+            }
+            return ts.visitNode(name, visitor, ts.isPropertyName);
+        }
+        function visitHeritageClause(node) {
+            if (node.token === 113) {
+                return undefined;
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitExpressionWithTypeArguments(node) {
+            return ts.updateExpressionWithTypeArguments(node, undefined, ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression));
+        }
+        function shouldEmitFunctionLikeDeclaration(node) {
+            return !ts.nodeIsMissing(node.body);
+        }
+        function visitPropertyDeclaration(node) {
+            if (node.flags & 8388608) {
+                return undefined;
+            }
+            var updated = ts.updateProperty(node, undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), visitPropertyNameOfClassElement(node), undefined, undefined, ts.visitNode(node.initializer, visitor));
+            if (updated !== node) {
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
+        }
+        function visitConstructor(node) {
+            if (!shouldEmitFunctionLikeDeclaration(node)) {
+                return undefined;
+            }
+            return ts.updateConstructor(node, undefined, undefined, ts.visitParameterList(node.parameters, visitor, context), transformConstructorBody(node.body, node));
+        }
+        function transformConstructorBody(body, constructor) {
+            var parametersWithPropertyAssignments = constructor &&
+                ts.filter(constructor.parameters, function (p) { return ts.isParameterPropertyDeclaration(p, constructor); });
+            if (!ts.some(parametersWithPropertyAssignments)) {
+                return ts.visitFunctionBody(body, visitor, context);
+            }
+            var statements = [];
+            var indexOfFirstStatement = 0;
+            resumeLexicalEnvironment();
+            indexOfFirstStatement = ts.addPrologueDirectivesAndInitialSuperCall(constructor, statements, visitor);
+            ts.addRange(statements, ts.map(parametersWithPropertyAssignments, transformParameterWithPropertyAssignment));
+            ts.addRange(statements, ts.visitNodes(body.statements, visitor, ts.isStatement, indexOfFirstStatement));
+            statements = ts.mergeLexicalEnvironment(statements, endLexicalEnvironment());
+            var block = ts.createBlock(ts.setTextRange(ts.createNodeArray(statements), body.statements), true);
+            ts.setTextRange(block, body);
+            ts.setOriginalNode(block, body);
+            return block;
+        }
+        function transformParameterWithPropertyAssignment(node) {
+            var name = node.name;
+            if (!ts.isIdentifier(name)) {
+                return undefined;
+            }
+            var propertyName = ts.getMutableClone(name);
+            ts.setEmitFlags(propertyName, 1536 | 48);
+            var localName = ts.getMutableClone(name);
+            ts.setEmitFlags(localName, 1536);
+            return ts.startOnNewLine(ts.removeAllComments(ts.setTextRange(ts.setOriginalNode(ts.createExpressionStatement(ts.createAssignment(ts.setTextRange(ts.createPropertyAccess(ts.createThis(), propertyName), node.name), localName)), node), ts.moveRangePos(node, -1))));
+        }
+        function visitMethodDeclaration(node) {
+            if (!shouldEmitFunctionLikeDeclaration(node)) {
+                return undefined;
+            }
+            var updated = ts.updateMethod(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, visitPropertyNameOfClassElement(node), undefined, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context));
+            if (updated !== node) {
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
+        }
+        function shouldEmitAccessorDeclaration(node) {
+            return !(ts.nodeIsMissing(node.body) && ts.hasModifier(node, 128));
+        }
+        function visitGetAccessor(node) {
+            if (!shouldEmitAccessorDeclaration(node)) {
+                return undefined;
+            }
+            var updated = ts.updateGetAccessor(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
+            if (updated !== node) {
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
+        }
+        function visitSetAccessor(node) {
+            if (!shouldEmitAccessorDeclaration(node)) {
+                return undefined;
+            }
+            var updated = ts.updateSetAccessor(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitParameterList(node.parameters, visitor, context), ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
+            if (updated !== node) {
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
+        }
+        function visitFunctionDeclaration(node) {
+            if (!shouldEmitFunctionLikeDeclaration(node)) {
+                return ts.createNotEmittedStatement(node);
+            }
+            var updated = ts.updateFunctionDeclaration(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
+            if (isExportOfNamespace(node)) {
+                var statements = [updated];
+                addExportMemberAssignment(statements, node);
+                return statements;
+            }
+            return updated;
+        }
+        function visitFunctionExpression(node) {
+            if (!shouldEmitFunctionLikeDeclaration(node)) {
+                return ts.createOmittedExpression();
+            }
+            var updated = ts.updateFunctionExpression(node, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
+            return updated;
+        }
+        function visitArrowFunction(node) {
+            var updated = ts.updateArrowFunction(node, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, node.equalsGreaterThanToken, ts.visitFunctionBody(node.body, visitor, context));
+            return updated;
+        }
+        function visitParameter(node) {
+            if (ts.parameterIsThisKeyword(node)) {
+                return undefined;
+            }
+            var updated = ts.updateParameter(node, undefined, undefined, node.dotDotDotToken, ts.visitNode(node.name, visitor, ts.isBindingName), undefined, undefined, ts.visitNode(node.initializer, visitor, ts.isExpression));
+            if (updated !== node) {
+                ts.setCommentRange(updated, node);
+                ts.setTextRange(updated, ts.moveRangePastModifiers(node));
+                ts.setSourceMapRange(updated, ts.moveRangePastModifiers(node));
+                ts.setEmitFlags(updated.name, 32);
+            }
+            return updated;
+        }
+        function visitVariableStatement(node) {
+            if (isExportOfNamespace(node)) {
+                var variables = ts.getInitializedVariables(node.declarationList);
+                if (variables.length === 0) {
+                    return undefined;
+                }
+                return ts.setTextRange(ts.createExpressionStatement(ts.inlineExpressions(ts.map(variables, transformInitializedVariable))), node);
+            }
+            else {
+                return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function transformInitializedVariable(node) {
+            var name = node.name;
+            if (ts.isBindingPattern(name)) {
+                return ts.flattenDestructuringAssignment(node, visitor, context, 0, false, createNamespaceExportExpression);
+            }
+            else {
+                return ts.setTextRange(ts.createAssignment(getNamespaceMemberNameWithSourceMapsAndWithoutComments(name), ts.visitNode(node.initializer, visitor, ts.isExpression)), node);
+            }
+        }
+        function visitVariableDeclaration(node) {
+            return ts.updateTypeScriptVariableDeclaration(node, ts.visitNode(node.name, visitor, ts.isBindingName), undefined, undefined, ts.visitNode(node.initializer, visitor, ts.isExpression));
+        }
+        function visitParenthesizedExpression(node) {
+            var innerExpression = ts.skipOuterExpressions(node.expression, ~6);
+            if (ts.isAssertionExpression(innerExpression)) {
+                var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+                if (ts.length(ts.getLeadingCommentRangesOfNode(expression, currentSourceFile))) {
+                    return ts.updateParen(node, expression);
+                }
+                return ts.createPartiallyEmittedExpression(expression, node);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitAssertionExpression(node) {
+            var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+            return ts.createPartiallyEmittedExpression(expression, node);
+        }
+        function visitNonNullExpression(node) {
+            var expression = ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression);
+            return ts.createPartiallyEmittedExpression(expression, node);
+        }
+        function visitCallExpression(node) {
+            return ts.updateCall(node, ts.visitNode(node.expression, visitor, ts.isExpression), undefined, ts.visitNodes(node.arguments, visitor, ts.isExpression));
+        }
+        function visitNewExpression(node) {
+            return ts.updateNew(node, ts.visitNode(node.expression, visitor, ts.isExpression), undefined, ts.visitNodes(node.arguments, visitor, ts.isExpression));
+        }
+        function visitTaggedTemplateExpression(node) {
+            return ts.updateTaggedTemplate(node, ts.visitNode(node.tag, visitor, ts.isExpression), undefined, ts.visitNode(node.template, visitor, ts.isExpression));
+        }
+        function visitJsxSelfClosingElement(node) {
+            return ts.updateJsxSelfClosingElement(node, ts.visitNode(node.tagName, visitor, ts.isJsxTagNameExpression), undefined, ts.visitNode(node.attributes, visitor, ts.isJsxAttributes));
+        }
+        function visitJsxJsxOpeningElement(node) {
+            return ts.updateJsxOpeningElement(node, ts.visitNode(node.tagName, visitor, ts.isJsxTagNameExpression), undefined, ts.visitNode(node.attributes, visitor, ts.isJsxAttributes));
+        }
+        function shouldEmitEnumDeclaration(node) {
+            return !ts.isEnumConst(node)
+                || compilerOptions.preserveConstEnums
+                || compilerOptions.isolatedModules;
+        }
+        function visitEnumDeclaration(node) {
+            if (!shouldEmitEnumDeclaration(node)) {
+                return ts.createNotEmittedStatement(node);
+            }
+            var statements = [];
+            var emitFlags = 2;
+            var varAdded = addVarForEnumOrModuleDeclaration(statements, node);
+            if (varAdded) {
+                if (moduleKind !== ts.ModuleKind.System || currentLexicalScope !== currentSourceFile) {
+                    emitFlags |= 512;
+                }
+            }
+            var parameterName = getNamespaceParameterName(node);
+            var containerName = getNamespaceContainerName(node);
+            var exportName = ts.hasModifier(node, 1)
+                ? ts.getExternalModuleOrNamespaceExportName(currentNamespaceContainerName, node, false, true)
+                : ts.getLocalName(node, false, true);
+            var moduleArg = ts.createLogicalOr(exportName, ts.createAssignment(exportName, ts.createObjectLiteral()));
+            if (hasNamespaceQualifiedExportName(node)) {
+                var localName = ts.getLocalName(node, false, true);
+                moduleArg = ts.createAssignment(localName, moduleArg);
+            }
+            var enumStatement = ts.createExpressionStatement(ts.createCall(ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, parameterName)], undefined, transformEnumBody(node, containerName)), undefined, [moduleArg]));
+            ts.setOriginalNode(enumStatement, node);
+            if (varAdded) {
+                ts.setSyntheticLeadingComments(enumStatement, undefined);
+                ts.setSyntheticTrailingComments(enumStatement, undefined);
+            }
+            ts.setTextRange(enumStatement, node);
+            ts.addEmitFlags(enumStatement, emitFlags);
+            statements.push(enumStatement);
+            statements.push(ts.createEndOfDeclarationMarker(node));
+            return statements;
+        }
+        function transformEnumBody(node, localName) {
+            var savedCurrentNamespaceLocalName = currentNamespaceContainerName;
+            currentNamespaceContainerName = localName;
+            var statements = [];
+            startLexicalEnvironment();
+            var members = ts.map(node.members, transformEnumMember);
+            ts.insertStatementsAfterStandardPrologue(statements, endLexicalEnvironment());
+            ts.addRange(statements, members);
+            currentNamespaceContainerName = savedCurrentNamespaceLocalName;
+            return ts.createBlock(ts.setTextRange(ts.createNodeArray(statements), node.members), true);
+        }
+        function transformEnumMember(member) {
+            var name = getExpressionForPropertyName(member, false);
+            var valueExpression = transformEnumMemberDeclarationValue(member);
+            var innerAssignment = ts.createAssignment(ts.createElementAccess(currentNamespaceContainerName, name), valueExpression);
+            var outerAssignment = valueExpression.kind === 10 ?
+                innerAssignment :
+                ts.createAssignment(ts.createElementAccess(currentNamespaceContainerName, innerAssignment), name);
+            return ts.setTextRange(ts.createExpressionStatement(ts.setTextRange(outerAssignment, member)), member);
+        }
+        function transformEnumMemberDeclarationValue(member) {
+            var value = resolver.getConstantValue(member);
+            if (value !== undefined) {
+                return ts.createLiteral(value);
+            }
+            else {
+                enableSubstitutionForNonQualifiedEnumMembers();
+                if (member.initializer) {
+                    return ts.visitNode(member.initializer, visitor, ts.isExpression);
+                }
+                else {
+                    return ts.createVoidZero();
+                }
+            }
+        }
+        function shouldEmitModuleDeclaration(nodeIn) {
+            var node = ts.getParseTreeNode(nodeIn, ts.isModuleDeclaration);
+            if (!node) {
+                return true;
+            }
+            return ts.isInstantiatedModule(node, !!compilerOptions.preserveConstEnums || !!compilerOptions.isolatedModules);
+        }
+        function hasNamespaceQualifiedExportName(node) {
+            return isExportOfNamespace(node)
+                || (isExternalModuleExport(node)
+                    && moduleKind !== ts.ModuleKind.ES2015
+                    && moduleKind !== ts.ModuleKind.ES2020
+                    && moduleKind !== ts.ModuleKind.ESNext
+                    && moduleKind !== ts.ModuleKind.System);
+        }
+        function recordEmittedDeclarationInScope(node) {
+            if (!currentScopeFirstDeclarationsOfName) {
+                currentScopeFirstDeclarationsOfName = ts.createUnderscoreEscapedMap();
+            }
+            var name = declaredNameInScope(node);
+            if (!currentScopeFirstDeclarationsOfName.has(name)) {
+                currentScopeFirstDeclarationsOfName.set(name, node);
+            }
+        }
+        function isFirstEmittedDeclarationInScope(node) {
+            if (currentScopeFirstDeclarationsOfName) {
+                var name = declaredNameInScope(node);
+                return currentScopeFirstDeclarationsOfName.get(name) === node;
+            }
+            return true;
+        }
+        function declaredNameInScope(node) {
+            ts.Debug.assertNode(node.name, ts.isIdentifier);
+            return node.name.escapedText;
+        }
+        function addVarForEnumOrModuleDeclaration(statements, node) {
+            var statement = ts.createVariableStatement(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(ts.getLocalName(node, false, true))
+            ], currentLexicalScope.kind === 290 ? 0 : 1));
+            ts.setOriginalNode(statement, node);
+            recordEmittedDeclarationInScope(node);
+            if (isFirstEmittedDeclarationInScope(node)) {
+                if (node.kind === 248) {
+                    ts.setSourceMapRange(statement.declarationList, node);
+                }
+                else {
+                    ts.setSourceMapRange(statement, node);
+                }
+                ts.setCommentRange(statement, node);
+                ts.addEmitFlags(statement, 1024 | 4194304);
+                statements.push(statement);
+                return true;
+            }
+            else {
+                var mergeMarker = ts.createMergeDeclarationMarker(statement);
+                ts.setEmitFlags(mergeMarker, 1536 | 4194304);
+                statements.push(mergeMarker);
+                return false;
+            }
+        }
+        function visitModuleDeclaration(node) {
+            if (!shouldEmitModuleDeclaration(node)) {
+                return ts.createNotEmittedStatement(node);
+            }
+            ts.Debug.assertNode(node.name, ts.isIdentifier, "A TypeScript namespace should have an Identifier name.");
+            enableSubstitutionForNamespaceExports();
+            var statements = [];
+            var emitFlags = 2;
+            var varAdded = addVarForEnumOrModuleDeclaration(statements, node);
+            if (varAdded) {
+                if (moduleKind !== ts.ModuleKind.System || currentLexicalScope !== currentSourceFile) {
+                    emitFlags |= 512;
+                }
+            }
+            var parameterName = getNamespaceParameterName(node);
+            var containerName = getNamespaceContainerName(node);
+            var exportName = ts.hasModifier(node, 1)
+                ? ts.getExternalModuleOrNamespaceExportName(currentNamespaceContainerName, node, false, true)
+                : ts.getLocalName(node, false, true);
+            var moduleArg = ts.createLogicalOr(exportName, ts.createAssignment(exportName, ts.createObjectLiteral()));
+            if (hasNamespaceQualifiedExportName(node)) {
+                var localName = ts.getLocalName(node, false, true);
+                moduleArg = ts.createAssignment(localName, moduleArg);
+            }
+            var moduleStatement = ts.createExpressionStatement(ts.createCall(ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, parameterName)], undefined, transformModuleBody(node, containerName)), undefined, [moduleArg]));
+            ts.setOriginalNode(moduleStatement, node);
+            if (varAdded) {
+                ts.setSyntheticLeadingComments(moduleStatement, undefined);
+                ts.setSyntheticTrailingComments(moduleStatement, undefined);
+            }
+            ts.setTextRange(moduleStatement, node);
+            ts.addEmitFlags(moduleStatement, emitFlags);
+            statements.push(moduleStatement);
+            statements.push(ts.createEndOfDeclarationMarker(node));
+            return statements;
+        }
+        function transformModuleBody(node, namespaceLocalName) {
+            var savedCurrentNamespaceContainerName = currentNamespaceContainerName;
+            var savedCurrentNamespace = currentNamespace;
+            var savedCurrentScopeFirstDeclarationsOfName = currentScopeFirstDeclarationsOfName;
+            currentNamespaceContainerName = namespaceLocalName;
+            currentNamespace = node;
+            currentScopeFirstDeclarationsOfName = undefined;
+            var statements = [];
+            startLexicalEnvironment();
+            var statementsLocation;
+            var blockLocation;
+            if (node.body) {
+                if (node.body.kind === 250) {
+                    saveStateAndInvoke(node.body, function (body) { return ts.addRange(statements, ts.visitNodes(body.statements, namespaceElementVisitor, ts.isStatement)); });
+                    statementsLocation = node.body.statements;
+                    blockLocation = node.body;
+                }
+                else {
+                    var result = visitModuleDeclaration(node.body);
+                    if (result) {
+                        if (ts.isArray(result)) {
+                            ts.addRange(statements, result);
+                        }
+                        else {
+                            statements.push(result);
+                        }
+                    }
+                    var moduleBlock = getInnerMostModuleDeclarationFromDottedModule(node).body;
+                    statementsLocation = ts.moveRangePos(moduleBlock.statements, -1);
+                }
+            }
+            ts.insertStatementsAfterStandardPrologue(statements, endLexicalEnvironment());
+            currentNamespaceContainerName = savedCurrentNamespaceContainerName;
+            currentNamespace = savedCurrentNamespace;
+            currentScopeFirstDeclarationsOfName = savedCurrentScopeFirstDeclarationsOfName;
+            var block = ts.createBlock(ts.setTextRange(ts.createNodeArray(statements), statementsLocation), true);
+            ts.setTextRange(block, blockLocation);
+            if (!node.body || node.body.kind !== 250) {
+                ts.setEmitFlags(block, ts.getEmitFlags(block) | 1536);
+            }
+            return block;
+        }
+        function getInnerMostModuleDeclarationFromDottedModule(moduleDeclaration) {
+            if (moduleDeclaration.body.kind === 249) {
+                var recursiveInnerModule = getInnerMostModuleDeclarationFromDottedModule(moduleDeclaration.body);
+                return recursiveInnerModule || moduleDeclaration.body;
+            }
+        }
+        function visitImportDeclaration(node) {
+            if (!node.importClause) {
+                return node;
+            }
+            if (node.importClause.isTypeOnly) {
+                return undefined;
+            }
+            var importClause = ts.visitNode(node.importClause, visitImportClause, ts.isImportClause);
+            return importClause ||
+                compilerOptions.importsNotUsedAsValues === 1 ||
+                compilerOptions.importsNotUsedAsValues === 2
+                ? ts.updateImportDeclaration(node, undefined, undefined, importClause, node.moduleSpecifier)
+                : undefined;
+        }
+        function visitImportClause(node) {
+            if (node.isTypeOnly) {
+                return undefined;
+            }
+            var name = resolver.isReferencedAliasDeclaration(node) ? node.name : undefined;
+            var namedBindings = ts.visitNode(node.namedBindings, visitNamedImportBindings, ts.isNamedImportBindings);
+            return (name || namedBindings) ? ts.updateImportClause(node, name, namedBindings, false) : undefined;
+        }
+        function visitNamedImportBindings(node) {
+            if (node.kind === 256) {
+                return resolver.isReferencedAliasDeclaration(node) ? node : undefined;
+            }
+            else {
+                var elements = ts.visitNodes(node.elements, visitImportSpecifier, ts.isImportSpecifier);
+                return ts.some(elements) ? ts.updateNamedImports(node, elements) : undefined;
+            }
+        }
+        function visitImportSpecifier(node) {
+            return resolver.isReferencedAliasDeclaration(node) ? node : undefined;
+        }
+        function visitExportAssignment(node) {
+            return resolver.isValueAliasDeclaration(node)
+                ? ts.visitEachChild(node, visitor, context)
+                : undefined;
+        }
+        function visitExportDeclaration(node) {
+            if (node.isTypeOnly) {
+                return undefined;
+            }
+            if (!node.exportClause || ts.isNamespaceExport(node.exportClause)) {
+                return node;
+            }
+            if (!resolver.isValueAliasDeclaration(node)) {
+                return undefined;
+            }
+            var exportClause = ts.visitNode(node.exportClause, visitNamedExportBindings, ts.isNamedExportBindings);
+            return exportClause
+                ? ts.updateExportDeclaration(node, undefined, undefined, exportClause, node.moduleSpecifier, node.isTypeOnly)
+                : undefined;
+        }
+        function visitNamedExports(node) {
+            var elements = ts.visitNodes(node.elements, visitExportSpecifier, ts.isExportSpecifier);
+            return ts.some(elements) ? ts.updateNamedExports(node, elements) : undefined;
+        }
+        function visitNamespaceExports(node) {
+            return ts.updateNamespaceExport(node, ts.visitNode(node.name, visitor, ts.isIdentifier));
+        }
+        function visitNamedExportBindings(node) {
+            return ts.isNamespaceExport(node) ? visitNamespaceExports(node) : visitNamedExports(node);
+        }
+        function visitExportSpecifier(node) {
+            return resolver.isValueAliasDeclaration(node) ? node : undefined;
+        }
+        function shouldEmitImportEqualsDeclaration(node) {
+            return resolver.isReferencedAliasDeclaration(node)
+                || (!ts.isExternalModule(currentSourceFile)
+                    && resolver.isTopLevelValueImportEqualsWithEntityName(node));
+        }
+        function visitImportEqualsDeclaration(node) {
+            if (ts.isExternalModuleImportEqualsDeclaration(node)) {
+                var isReferenced = resolver.isReferencedAliasDeclaration(node);
+                if (!isReferenced && compilerOptions.importsNotUsedAsValues === 1) {
+                    return ts.setOriginalNode(ts.setTextRange(ts.createImportDeclaration(undefined, undefined, undefined, node.moduleReference.expression), node), node);
+                }
+                return isReferenced ? ts.visitEachChild(node, visitor, context) : undefined;
+            }
+            if (!shouldEmitImportEqualsDeclaration(node)) {
+                return undefined;
+            }
+            var moduleReference = ts.createExpressionFromEntityName(node.moduleReference);
+            ts.setEmitFlags(moduleReference, 1536 | 2048);
+            if (isNamedExternalModuleExport(node) || !isExportOfNamespace(node)) {
+                return ts.setOriginalNode(ts.setTextRange(ts.createVariableStatement(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), ts.createVariableDeclarationList([
+                    ts.setOriginalNode(ts.createVariableDeclaration(node.name, undefined, moduleReference), node)
+                ])), node), node);
+            }
+            else {
+                return ts.setOriginalNode(createNamespaceExport(node.name, moduleReference, node), node);
+            }
+        }
+        function isExportOfNamespace(node) {
+            return currentNamespace !== undefined && ts.hasModifier(node, 1);
+        }
+        function isExternalModuleExport(node) {
+            return currentNamespace === undefined && ts.hasModifier(node, 1);
+        }
+        function isNamedExternalModuleExport(node) {
+            return isExternalModuleExport(node)
+                && !ts.hasModifier(node, 512);
+        }
+        function isDefaultExternalModuleExport(node) {
+            return isExternalModuleExport(node)
+                && ts.hasModifier(node, 512);
+        }
+        function expressionToStatement(expression) {
+            return ts.createExpressionStatement(expression);
+        }
+        function addExportMemberAssignment(statements, node) {
+            var expression = ts.createAssignment(ts.getExternalModuleOrNamespaceExportName(currentNamespaceContainerName, node, false, true), ts.getLocalName(node));
+            ts.setSourceMapRange(expression, ts.createRange(node.name ? node.name.pos : node.pos, node.end));
+            var statement = ts.createExpressionStatement(expression);
+            ts.setSourceMapRange(statement, ts.createRange(-1, node.end));
+            statements.push(statement);
+        }
+        function createNamespaceExport(exportName, exportValue, location) {
+            return ts.setTextRange(ts.createExpressionStatement(ts.createAssignment(ts.getNamespaceMemberName(currentNamespaceContainerName, exportName, false, true), exportValue)), location);
+        }
+        function createNamespaceExportExpression(exportName, exportValue, location) {
+            return ts.setTextRange(ts.createAssignment(getNamespaceMemberNameWithSourceMapsAndWithoutComments(exportName), exportValue), location);
+        }
+        function getNamespaceMemberNameWithSourceMapsAndWithoutComments(name) {
+            return ts.getNamespaceMemberName(currentNamespaceContainerName, name, false, true);
+        }
+        function getNamespaceParameterName(node) {
+            var name = ts.getGeneratedNameForNode(node);
+            ts.setSourceMapRange(name, node.name);
+            return name;
+        }
+        function getNamespaceContainerName(node) {
+            return ts.getGeneratedNameForNode(node);
+        }
+        function getClassAliasIfNeeded(node) {
+            if (resolver.getNodeCheckFlags(node) & 16777216) {
+                enableSubstitutionForClassAliases();
+                var classAlias = ts.createUniqueName(node.name && !ts.isGeneratedIdentifier(node.name) ? ts.idText(node.name) : "default");
+                classAliases[ts.getOriginalNodeId(node)] = classAlias;
+                hoistVariableDeclaration(classAlias);
+                return classAlias;
+            }
+        }
+        function getClassPrototype(node) {
+            return ts.createPropertyAccess(ts.getDeclarationName(node), "prototype");
+        }
+        function getClassMemberPrefix(node, member) {
+            return ts.hasModifier(member, 32)
+                ? ts.getDeclarationName(node)
+                : getClassPrototype(node);
+        }
+        function enableSubstitutionForNonQualifiedEnumMembers() {
+            if ((enabledSubstitutions & 8) === 0) {
+                enabledSubstitutions |= 8;
+                context.enableSubstitution(75);
+            }
+        }
+        function enableSubstitutionForClassAliases() {
+            if ((enabledSubstitutions & 1) === 0) {
+                enabledSubstitutions |= 1;
+                context.enableSubstitution(75);
+                classAliases = [];
+            }
+        }
+        function enableSubstitutionForNamespaceExports() {
+            if ((enabledSubstitutions & 2) === 0) {
+                enabledSubstitutions |= 2;
+                context.enableSubstitution(75);
+                context.enableSubstitution(282);
+                context.enableEmitNotification(249);
+            }
+        }
+        function isTransformedModuleDeclaration(node) {
+            return ts.getOriginalNode(node).kind === 249;
+        }
+        function isTransformedEnumDeclaration(node) {
+            return ts.getOriginalNode(node).kind === 248;
+        }
+        function onEmitNode(hint, node, emitCallback) {
+            var savedApplicableSubstitutions = applicableSubstitutions;
+            var savedCurrentSourceFile = currentSourceFile;
+            if (ts.isSourceFile(node)) {
+                currentSourceFile = node;
+            }
+            if (enabledSubstitutions & 2 && isTransformedModuleDeclaration(node)) {
+                applicableSubstitutions |= 2;
+            }
+            if (enabledSubstitutions & 8 && isTransformedEnumDeclaration(node)) {
+                applicableSubstitutions |= 8;
+            }
+            previousOnEmitNode(hint, node, emitCallback);
+            applicableSubstitutions = savedApplicableSubstitutions;
+            currentSourceFile = savedCurrentSourceFile;
+        }
+        function onSubstituteNode(hint, node) {
+            node = previousOnSubstituteNode(hint, node);
+            if (hint === 1) {
+                return substituteExpression(node);
+            }
+            else if (ts.isShorthandPropertyAssignment(node)) {
+                return substituteShorthandPropertyAssignment(node);
+            }
+            return node;
+        }
+        function substituteShorthandPropertyAssignment(node) {
+            if (enabledSubstitutions & 2) {
+                var name = node.name;
+                var exportedName = trySubstituteNamespaceExportedName(name);
+                if (exportedName) {
+                    if (node.objectAssignmentInitializer) {
+                        var initializer = ts.createAssignment(exportedName, node.objectAssignmentInitializer);
+                        return ts.setTextRange(ts.createPropertyAssignment(name, initializer), node);
+                    }
+                    return ts.setTextRange(ts.createPropertyAssignment(name, exportedName), node);
+                }
+            }
+            return node;
+        }
+        function substituteExpression(node) {
+            switch (node.kind) {
+                case 75:
+                    return substituteExpressionIdentifier(node);
+                case 194:
+                    return substitutePropertyAccessExpression(node);
+                case 195:
+                    return substituteElementAccessExpression(node);
+            }
+            return node;
+        }
+        function substituteExpressionIdentifier(node) {
+            return trySubstituteClassAlias(node)
+                || trySubstituteNamespaceExportedName(node)
+                || node;
+        }
+        function trySubstituteClassAlias(node) {
+            if (enabledSubstitutions & 1) {
+                if (resolver.getNodeCheckFlags(node) & 33554432) {
+                    var declaration = resolver.getReferencedValueDeclaration(node);
+                    if (declaration) {
+                        var classAlias = classAliases[declaration.id];
+                        if (classAlias) {
+                            var clone_1 = ts.getSynthesizedClone(classAlias);
+                            ts.setSourceMapRange(clone_1, node);
+                            ts.setCommentRange(clone_1, node);
+                            return clone_1;
+                        }
+                    }
+                }
+            }
+            return undefined;
+        }
+        function trySubstituteNamespaceExportedName(node) {
+            if (enabledSubstitutions & applicableSubstitutions && !ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
+                var container = resolver.getReferencedExportContainer(node, false);
+                if (container && container.kind !== 290) {
+                    var substitute = (applicableSubstitutions & 2 && container.kind === 249) ||
+                        (applicableSubstitutions & 8 && container.kind === 248);
+                    if (substitute) {
+                        return ts.setTextRange(ts.createPropertyAccess(ts.getGeneratedNameForNode(container), node), node);
+                    }
+                }
+            }
+            return undefined;
+        }
+        function substitutePropertyAccessExpression(node) {
+            return substituteConstantValue(node);
+        }
+        function substituteElementAccessExpression(node) {
+            return substituteConstantValue(node);
+        }
+        function substituteConstantValue(node) {
+            var constantValue = tryGetConstEnumValue(node);
+            if (constantValue !== undefined) {
+                ts.setConstantValue(node, constantValue);
+                var substitute = ts.createLiteral(constantValue);
+                if (!compilerOptions.removeComments) {
+                    var originalNode = ts.getOriginalNode(node, ts.isAccessExpression);
+                    var propertyName = ts.isPropertyAccessExpression(originalNode)
+                        ? ts.declarationNameToString(originalNode.name)
+                        : ts.getTextOfNode(originalNode.argumentExpression);
+                    ts.addSyntheticTrailingComment(substitute, 3, " " + propertyName + " ");
+                }
+                return substitute;
+            }
+            return node;
+        }
+        function tryGetConstEnumValue(node) {
+            if (compilerOptions.isolatedModules) {
+                return undefined;
+            }
+            return ts.isPropertyAccessExpression(node) || ts.isElementAccessExpression(node) ? resolver.getConstantValue(node) : undefined;
+        }
+    }
+    ts.transformTypeScript = transformTypeScript;
+    function createDecorateHelper(context, decoratorExpressions, target, memberName, descriptor, location) {
+        var argumentsArray = [];
+        argumentsArray.push(ts.createArrayLiteral(decoratorExpressions, true));
+        argumentsArray.push(target);
+        if (memberName) {
+            argumentsArray.push(memberName);
+            if (descriptor) {
+                argumentsArray.push(descriptor);
+            }
+        }
+        context.requestEmitHelper(ts.decorateHelper);
+        return ts.setTextRange(ts.createCall(ts.getUnscopedHelperName("__decorate"), undefined, argumentsArray), location);
+    }
+    ts.decorateHelper = {
+        name: "typescript:decorate",
+        importName: "__decorate",
+        scoped: false,
+        priority: 2,
+        text: "\n            var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {\n                var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n                if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\n                else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n                return c > 3 && r && Object.defineProperty(target, key, r), r;\n            };"
+    };
+    function createMetadataHelper(context, metadataKey, metadataValue) {
+        context.requestEmitHelper(ts.metadataHelper);
+        return ts.createCall(ts.getUnscopedHelperName("__metadata"), undefined, [
+            ts.createLiteral(metadataKey),
+            metadataValue
+        ]);
+    }
+    ts.metadataHelper = {
+        name: "typescript:metadata",
+        importName: "__metadata",
+        scoped: false,
+        priority: 3,
+        text: "\n            var __metadata = (this && this.__metadata) || function (k, v) {\n                if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(k, v);\n            };"
+    };
+    function createParamHelper(context, expression, parameterOffset, location) {
+        context.requestEmitHelper(ts.paramHelper);
+        return ts.setTextRange(ts.createCall(ts.getUnscopedHelperName("__param"), undefined, [
+            ts.createLiteral(parameterOffset),
+            expression
+        ]), location);
+    }
+    ts.paramHelper = {
+        name: "typescript:param",
+        importName: "__param",
+        scoped: false,
+        priority: 4,
+        text: "\n            var __param = (this && this.__param) || function (paramIndex, decorator) {\n                return function (target, key) { decorator(target, key, paramIndex); }\n            };"
+    };
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformClassFields(context) {
+        var hoistVariableDeclaration = context.hoistVariableDeclaration, endLexicalEnvironment = context.endLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment;
+        var resolver = context.getEmitResolver();
+        var compilerOptions = context.getCompilerOptions();
+        var languageVersion = ts.getEmitScriptTarget(compilerOptions);
+        var shouldTransformPrivateFields = languageVersion < 99;
+        var previousOnSubstituteNode = context.onSubstituteNode;
+        context.onSubstituteNode = onSubstituteNode;
+        var enabledSubstitutions;
+        var classAliases;
+        var pendingExpressions;
+        var pendingStatements;
+        var privateIdentifierEnvironmentStack = [];
+        var currentPrivateIdentifierEnvironment;
+        return ts.chainBundle(transformSourceFile);
+        function transformSourceFile(node) {
+            var options = context.getCompilerOptions();
+            if (node.isDeclarationFile
+                || options.useDefineForClassFields && options.target === 99) {
+                return node;
+            }
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            return visited;
+        }
+        function visitor(node) {
+            if (!(node.transformFlags & 4194304))
+                return node;
+            switch (node.kind) {
+                case 214:
+                case 245:
+                    return visitClassLike(node);
+                case 159:
+                    return visitPropertyDeclaration(node);
+                case 225:
+                    return visitVariableStatement(node);
+                case 154:
+                    return visitComputedPropertyName(node);
+                case 194:
+                    return visitPropertyAccessExpression(node);
+                case 207:
+                    return visitPrefixUnaryExpression(node);
+                case 208:
+                    return visitPostfixUnaryExpression(node, false);
+                case 196:
+                    return visitCallExpression(node);
+                case 209:
+                    return visitBinaryExpression(node);
+                case 76:
+                    return visitPrivateIdentifier(node);
+                case 226:
+                    return visitExpressionStatement(node);
+                case 230:
+                    return visitForStatement(node);
+                case 198:
+                    return visitTaggedTemplateExpression(node);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitorDestructuringTarget(node) {
+            switch (node.kind) {
+                case 193:
+                case 192:
+                    return visitAssignmentPattern(node);
+                default:
+                    return visitor(node);
+            }
+        }
+        function visitPrivateIdentifier(node) {
+            if (!shouldTransformPrivateFields) {
+                return node;
+            }
+            return ts.setOriginalNode(ts.createIdentifier(""), node);
+        }
+        function classElementVisitor(node) {
+            switch (node.kind) {
+                case 162:
+                    return undefined;
+                case 163:
+                case 164:
+                case 161:
+                    return ts.visitEachChild(node, classElementVisitor, context);
+                case 159:
+                    return visitPropertyDeclaration(node);
+                case 154:
+                    return visitComputedPropertyName(node);
+                case 222:
+                    return node;
+                default:
+                    return visitor(node);
+            }
+        }
+        function visitVariableStatement(node) {
+            var savedPendingStatements = pendingStatements;
+            pendingStatements = [];
+            var visitedNode = ts.visitEachChild(node, visitor, context);
+            var statement = ts.some(pendingStatements) ? __spreadArrays([visitedNode], pendingStatements) :
+                visitedNode;
+            pendingStatements = savedPendingStatements;
+            return statement;
+        }
+        function visitComputedPropertyName(name) {
+            var node = ts.visitEachChild(name, visitor, context);
+            if (ts.some(pendingExpressions)) {
+                var expressions = pendingExpressions;
+                expressions.push(name.expression);
+                pendingExpressions = [];
+                node = ts.updateComputedPropertyName(node, ts.inlineExpressions(expressions));
+            }
+            return node;
+        }
+        function visitPropertyDeclaration(node) {
+            ts.Debug.assert(!ts.some(node.decorators));
+            if (!shouldTransformPrivateFields && ts.isPrivateIdentifier(node.name)) {
+                return ts.updateProperty(node, undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.name, undefined, undefined, undefined);
+            }
+            var expr = getPropertyNameExpressionIfNeeded(node.name, !!node.initializer || !!context.getCompilerOptions().useDefineForClassFields);
+            if (expr && !ts.isSimpleInlineableExpression(expr)) {
+                (pendingExpressions || (pendingExpressions = [])).push(expr);
+            }
+            return undefined;
+        }
+        function createPrivateIdentifierAccess(info, receiver) {
+            receiver = ts.visitNode(receiver, visitor, ts.isExpression);
+            switch (info.placement) {
+                case 0:
+                    return createClassPrivateFieldGetHelper(context, ts.nodeIsSynthesized(receiver) ? receiver : ts.getSynthesizedClone(receiver), info.weakMapName);
+                default: return ts.Debug.fail("Unexpected private identifier placement");
+            }
+        }
+        function visitPropertyAccessExpression(node) {
+            if (shouldTransformPrivateFields && ts.isPrivateIdentifier(node.name)) {
+                var privateIdentifierInfo = accessPrivateIdentifier(node.name);
+                if (privateIdentifierInfo) {
+                    return ts.setOriginalNode(createPrivateIdentifierAccess(privateIdentifierInfo, node.expression), node);
+                }
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitPrefixUnaryExpression(node) {
+            if (shouldTransformPrivateFields && ts.isPrivateIdentifierPropertyAccessExpression(node.operand)) {
+                var operator = node.operator === 45 ?
+                    39 : node.operator === 46 ?
+                    40 : undefined;
+                var info = void 0;
+                if (operator && (info = accessPrivateIdentifier(node.operand.name))) {
+                    var receiver = ts.visitNode(node.operand.expression, visitor, ts.isExpression);
+                    var _a = createCopiableReceiverExpr(receiver), readExpression = _a.readExpression, initializeExpression = _a.initializeExpression;
+                    var existingValue = ts.createPrefix(39, createPrivateIdentifierAccess(info, readExpression));
+                    return ts.setOriginalNode(createPrivateIdentifierAssignment(info, initializeExpression || readExpression, ts.createBinary(existingValue, operator, ts.createLiteral(1)), 62), node);
+                }
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitPostfixUnaryExpression(node, valueIsDiscarded) {
+            if (shouldTransformPrivateFields && ts.isPrivateIdentifierPropertyAccessExpression(node.operand)) {
+                var operator = node.operator === 45 ?
+                    39 : node.operator === 46 ?
+                    40 : undefined;
+                var info = void 0;
+                if (operator && (info = accessPrivateIdentifier(node.operand.name))) {
+                    var receiver = ts.visitNode(node.operand.expression, visitor, ts.isExpression);
+                    var _a = createCopiableReceiverExpr(receiver), readExpression = _a.readExpression, initializeExpression = _a.initializeExpression;
+                    var existingValue = ts.createPrefix(39, createPrivateIdentifierAccess(info, readExpression));
+                    var returnValue = valueIsDiscarded ? undefined : ts.createTempVariable(hoistVariableDeclaration);
+                    return ts.setOriginalNode(ts.inlineExpressions(ts.compact([
+                        createPrivateIdentifierAssignment(info, initializeExpression || readExpression, ts.createBinary(returnValue ? ts.createAssignment(returnValue, existingValue) : existingValue, operator, ts.createLiteral(1)), 62),
+                        returnValue
+                    ])), node);
+                }
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitForStatement(node) {
+            if (node.incrementor && ts.isPostfixUnaryExpression(node.incrementor)) {
+                return ts.updateFor(node, ts.visitNode(node.initializer, visitor, ts.isForInitializer), ts.visitNode(node.condition, visitor, ts.isExpression), visitPostfixUnaryExpression(node.incrementor, true), ts.visitNode(node.statement, visitor, ts.isStatement));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitExpressionStatement(node) {
+            if (ts.isPostfixUnaryExpression(node.expression)) {
+                return ts.updateExpressionStatement(node, visitPostfixUnaryExpression(node.expression, true));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function createCopiableReceiverExpr(receiver) {
+            var clone = ts.nodeIsSynthesized(receiver) ? receiver : ts.getSynthesizedClone(receiver);
+            if (ts.isSimpleInlineableExpression(receiver)) {
+                return { readExpression: clone, initializeExpression: undefined };
+            }
+            var readExpression = ts.createTempVariable(hoistVariableDeclaration);
+            var initializeExpression = ts.createAssignment(readExpression, clone);
+            return { readExpression: readExpression, initializeExpression: initializeExpression };
+        }
+        function visitCallExpression(node) {
+            if (shouldTransformPrivateFields && ts.isPrivateIdentifierPropertyAccessExpression(node.expression)) {
+                var _a = ts.createCallBinding(node.expression, hoistVariableDeclaration, languageVersion), thisArg = _a.thisArg, target = _a.target;
+                return ts.updateCall(node, ts.createPropertyAccess(ts.visitNode(target, visitor), "call"), undefined, __spreadArrays([ts.visitNode(thisArg, visitor, ts.isExpression)], ts.visitNodes(node.arguments, visitor, ts.isExpression)));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitTaggedTemplateExpression(node) {
+            if (shouldTransformPrivateFields && ts.isPrivateIdentifierPropertyAccessExpression(node.tag)) {
+                var _a = ts.createCallBinding(node.tag, hoistVariableDeclaration, languageVersion), thisArg = _a.thisArg, target = _a.target;
+                return ts.updateTaggedTemplate(node, ts.createCall(ts.createPropertyAccess(ts.visitNode(target, visitor), "bind"), undefined, [ts.visitNode(thisArg, visitor, ts.isExpression)]), ts.visitNode(node.template, visitor, ts.isTemplateLiteral));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitBinaryExpression(node) {
+            if (shouldTransformPrivateFields) {
+                if (ts.isDestructuringAssignment(node)) {
+                    var savedPendingExpressions = pendingExpressions;
+                    pendingExpressions = undefined;
+                    node = ts.updateBinary(node, ts.visitNode(node.left, visitorDestructuringTarget), ts.visitNode(node.right, visitor), node.operatorToken);
+                    var expr = ts.some(pendingExpressions) ?
+                        ts.inlineExpressions(ts.compact(__spreadArrays(pendingExpressions, [node]))) :
+                        node;
+                    pendingExpressions = savedPendingExpressions;
+                    return expr;
+                }
+                if (ts.isAssignmentExpression(node) && ts.isPrivateIdentifierPropertyAccessExpression(node.left)) {
+                    var info = accessPrivateIdentifier(node.left.name);
+                    if (info) {
+                        return ts.setOriginalNode(createPrivateIdentifierAssignment(info, node.left.expression, node.right, node.operatorToken.kind), node);
+                    }
+                }
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function createPrivateIdentifierAssignment(info, receiver, right, operator) {
+            switch (info.placement) {
+                case 0: {
+                    return createPrivateIdentifierInstanceFieldAssignment(info, receiver, right, operator);
+                }
+                default: return ts.Debug.fail("Unexpected private identifier placement");
+            }
+        }
+        function createPrivateIdentifierInstanceFieldAssignment(info, receiver, right, operator) {
+            receiver = ts.visitNode(receiver, visitor, ts.isExpression);
+            right = ts.visitNode(right, visitor, ts.isExpression);
+            if (ts.isCompoundAssignment(operator)) {
+                var _a = createCopiableReceiverExpr(receiver), readExpression = _a.readExpression, initializeExpression = _a.initializeExpression;
+                return createClassPrivateFieldSetHelper(context, initializeExpression || readExpression, info.weakMapName, ts.createBinary(createClassPrivateFieldGetHelper(context, readExpression, info.weakMapName), ts.getNonAssignmentOperatorForCompoundAssignment(operator), right));
+            }
+            else {
+                return createClassPrivateFieldSetHelper(context, receiver, info.weakMapName, right);
+            }
+        }
+        function visitClassLike(node) {
+            var savedPendingExpressions = pendingExpressions;
+            pendingExpressions = undefined;
+            if (shouldTransformPrivateFields) {
+                startPrivateIdentifierEnvironment();
+            }
+            var result = ts.isClassDeclaration(node) ?
+                visitClassDeclaration(node) :
+                visitClassExpression(node);
+            if (shouldTransformPrivateFields) {
+                endPrivateIdentifierEnvironment();
+            }
+            pendingExpressions = savedPendingExpressions;
+            return result;
+        }
+        function doesClassElementNeedTransform(node) {
+            return ts.isPropertyDeclaration(node) || (shouldTransformPrivateFields && node.name && ts.isPrivateIdentifier(node.name));
+        }
+        function visitClassDeclaration(node) {
+            if (!ts.forEach(node.members, doesClassElementNeedTransform)) {
+                return ts.visitEachChild(node, visitor, context);
+            }
+            var extendsClauseElement = ts.getEffectiveBaseTypeNode(node);
+            var isDerivedClass = !!(extendsClauseElement && ts.skipOuterExpressions(extendsClauseElement.expression).kind !== 100);
+            var statements = [
+                ts.updateClassDeclaration(node, undefined, node.modifiers, node.name, undefined, ts.visitNodes(node.heritageClauses, visitor, ts.isHeritageClause), transformClassMembers(node, isDerivedClass))
+            ];
+            if (ts.some(pendingExpressions)) {
+                statements.push(ts.createExpressionStatement(ts.inlineExpressions(pendingExpressions)));
+            }
+            var staticProperties = ts.getProperties(node, true, true);
+            if (ts.some(staticProperties)) {
+                addPropertyStatements(statements, staticProperties, ts.getInternalName(node));
+            }
+            return statements;
+        }
+        function visitClassExpression(node) {
+            if (!ts.forEach(node.members, doesClassElementNeedTransform)) {
+                return ts.visitEachChild(node, visitor, context);
+            }
+            var isDecoratedClassDeclaration = ts.isClassDeclaration(ts.getOriginalNode(node));
+            var staticProperties = ts.getProperties(node, true, true);
+            var extendsClauseElement = ts.getEffectiveBaseTypeNode(node);
+            var isDerivedClass = !!(extendsClauseElement && ts.skipOuterExpressions(extendsClauseElement.expression).kind !== 100);
+            var classExpression = ts.updateClassExpression(node, node.modifiers, node.name, undefined, ts.visitNodes(node.heritageClauses, visitor, ts.isHeritageClause), transformClassMembers(node, isDerivedClass));
+            if (ts.some(staticProperties) || ts.some(pendingExpressions)) {
+                if (isDecoratedClassDeclaration) {
+                    ts.Debug.assertIsDefined(pendingStatements, "Decorated classes transformed by TypeScript are expected to be within a variable declaration.");
+                    if (pendingStatements && pendingExpressions && ts.some(pendingExpressions)) {
+                        pendingStatements.push(ts.createExpressionStatement(ts.inlineExpressions(pendingExpressions)));
+                    }
+                    if (pendingStatements && ts.some(staticProperties)) {
+                        addPropertyStatements(pendingStatements, staticProperties, ts.getInternalName(node));
+                    }
+                    return classExpression;
+                }
+                else {
+                    var expressions = [];
+                    var isClassWithConstructorReference = resolver.getNodeCheckFlags(node) & 16777216;
+                    var temp = ts.createTempVariable(hoistVariableDeclaration, !!isClassWithConstructorReference);
+                    if (isClassWithConstructorReference) {
+                        enableSubstitutionForClassAliases();
+                        var alias = ts.getSynthesizedClone(temp);
+                        alias.autoGenerateFlags &= ~8;
+                        classAliases[ts.getOriginalNodeId(node)] = alias;
+                    }
+                    ts.setEmitFlags(classExpression, 65536 | ts.getEmitFlags(classExpression));
+                    expressions.push(ts.startOnNewLine(ts.createAssignment(temp, classExpression)));
+                    ts.addRange(expressions, ts.map(pendingExpressions, ts.startOnNewLine));
+                    ts.addRange(expressions, generateInitializedPropertyExpressions(staticProperties, temp));
+                    expressions.push(ts.startOnNewLine(temp));
+                    return ts.inlineExpressions(expressions);
+                }
+            }
+            return classExpression;
+        }
+        function transformClassMembers(node, isDerivedClass) {
+            if (shouldTransformPrivateFields) {
+                for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
+                    var member = _a[_i];
+                    if (ts.isPrivateIdentifierPropertyDeclaration(member)) {
+                        addPrivateIdentifierToEnvironment(member.name);
+                    }
+                }
+            }
+            var members = [];
+            var constructor = transformConstructor(node, isDerivedClass);
+            if (constructor) {
+                members.push(constructor);
+            }
+            ts.addRange(members, ts.visitNodes(node.members, classElementVisitor, ts.isClassElement));
+            return ts.setTextRange(ts.createNodeArray(members), node.members);
+        }
+        function isPropertyDeclarationThatRequiresConstructorStatement(member) {
+            if (!ts.isPropertyDeclaration(member) || ts.hasStaticModifier(member)) {
+                return false;
+            }
+            if (context.getCompilerOptions().useDefineForClassFields) {
+                return languageVersion < 99;
+            }
+            return ts.isInitializedProperty(member) || shouldTransformPrivateFields && ts.isPrivateIdentifierPropertyDeclaration(member);
+        }
+        function transformConstructor(node, isDerivedClass) {
+            var constructor = ts.visitNode(ts.getFirstConstructorWithBody(node), visitor, ts.isConstructorDeclaration);
+            var properties = node.members.filter(isPropertyDeclarationThatRequiresConstructorStatement);
+            if (!ts.some(properties)) {
+                return constructor;
+            }
+            var parameters = ts.visitParameterList(constructor ? constructor.parameters : undefined, visitor, context);
+            var body = transformConstructorBody(node, constructor, isDerivedClass);
+            if (!body) {
+                return undefined;
+            }
+            return ts.startOnNewLine(ts.setOriginalNode(ts.setTextRange(ts.createConstructor(undefined, undefined, parameters !== null && parameters !== void 0 ? parameters : [], body), constructor || node), constructor));
+        }
+        function transformConstructorBody(node, constructor, isDerivedClass) {
+            var useDefineForClassFields = context.getCompilerOptions().useDefineForClassFields;
+            var properties = ts.getProperties(node, false, false);
+            if (!useDefineForClassFields) {
+                properties = ts.filter(properties, function (property) { return !!property.initializer || ts.isPrivateIdentifier(property.name); });
+            }
+            if (!constructor && !ts.some(properties)) {
+                return ts.visitFunctionBody(undefined, visitor, context);
+            }
+            resumeLexicalEnvironment();
+            var indexOfFirstStatement = 0;
+            var statements = [];
+            if (!constructor && isDerivedClass) {
+                statements.push(ts.createExpressionStatement(ts.createCall(ts.createSuper(), undefined, [ts.createSpread(ts.createIdentifier("arguments"))])));
+            }
+            if (constructor) {
+                indexOfFirstStatement = ts.addPrologueDirectivesAndInitialSuperCall(constructor, statements, visitor);
+            }
+            if (constructor === null || constructor === void 0 ? void 0 : constructor.body) {
+                var afterParameterProperties = ts.findIndex(constructor.body.statements, function (s) { return !ts.isParameterPropertyDeclaration(ts.getOriginalNode(s), constructor); }, indexOfFirstStatement);
+                if (afterParameterProperties === -1) {
+                    afterParameterProperties = constructor.body.statements.length;
+                }
+                if (afterParameterProperties > indexOfFirstStatement) {
+                    if (!useDefineForClassFields) {
+                        ts.addRange(statements, ts.visitNodes(constructor.body.statements, visitor, ts.isStatement, indexOfFirstStatement, afterParameterProperties - indexOfFirstStatement));
+                    }
+                    indexOfFirstStatement = afterParameterProperties;
+                }
+            }
+            addPropertyStatements(statements, properties, ts.createThis());
+            if (constructor) {
+                ts.addRange(statements, ts.visitNodes(constructor.body.statements, visitor, ts.isStatement, indexOfFirstStatement));
+            }
+            statements = ts.mergeLexicalEnvironment(statements, endLexicalEnvironment());
+            return ts.setTextRange(ts.createBlock(ts.setTextRange(ts.createNodeArray(statements), constructor ? constructor.body.statements : node.members), true), constructor ? constructor.body : undefined);
+        }
+        function addPropertyStatements(statements, properties, receiver) {
+            for (var _i = 0, properties_8 = properties; _i < properties_8.length; _i++) {
+                var property = properties_8[_i];
+                var expression = transformProperty(property, receiver);
+                if (!expression) {
+                    continue;
+                }
+                var statement = ts.createExpressionStatement(expression);
+                ts.setSourceMapRange(statement, ts.moveRangePastModifiers(property));
+                ts.setCommentRange(statement, property);
+                ts.setOriginalNode(statement, property);
+                statements.push(statement);
+            }
+        }
+        function generateInitializedPropertyExpressions(properties, receiver) {
+            var expressions = [];
+            for (var _i = 0, properties_9 = properties; _i < properties_9.length; _i++) {
+                var property = properties_9[_i];
+                var expression = transformProperty(property, receiver);
+                if (!expression) {
+                    continue;
+                }
+                ts.startOnNewLine(expression);
+                ts.setSourceMapRange(expression, ts.moveRangePastModifiers(property));
+                ts.setCommentRange(expression, property);
+                ts.setOriginalNode(expression, property);
+                expressions.push(expression);
+            }
+            return expressions;
+        }
+        function transformProperty(property, receiver) {
+            var emitAssignment = !context.getCompilerOptions().useDefineForClassFields;
+            var propertyName = ts.isComputedPropertyName(property.name) && !ts.isSimpleInlineableExpression(property.name.expression)
+                ? ts.updateComputedPropertyName(property.name, ts.getGeneratedNameForNode(property.name))
+                : property.name;
+            if (shouldTransformPrivateFields && ts.isPrivateIdentifier(propertyName)) {
+                var privateIdentifierInfo = accessPrivateIdentifier(propertyName);
+                if (privateIdentifierInfo) {
+                    switch (privateIdentifierInfo.placement) {
+                        case 0: {
+                            return createPrivateInstanceFieldInitializer(receiver, ts.visitNode(property.initializer, visitor, ts.isExpression), privateIdentifierInfo.weakMapName);
+                        }
+                    }
+                }
+                else {
+                    ts.Debug.fail("Undeclared private name for property declaration.");
+                }
+            }
+            if (ts.isPrivateIdentifier(propertyName) && !property.initializer) {
+                return undefined;
+            }
+            if (ts.isPrivateIdentifier(propertyName) && !property.initializer) {
+                return undefined;
+            }
+            var propertyOriginalNode = ts.getOriginalNode(property);
+            var initializer = property.initializer || emitAssignment ? ts.visitNode(property.initializer, visitor, ts.isExpression)
+                : ts.isParameterPropertyDeclaration(propertyOriginalNode, propertyOriginalNode.parent) && ts.isIdentifier(propertyName) ? propertyName
+                    : ts.createVoidZero();
+            if (emitAssignment || ts.isPrivateIdentifier(propertyName)) {
+                var memberAccess = ts.createMemberAccessForPropertyName(receiver, propertyName, propertyName);
+                return ts.createAssignment(memberAccess, initializer);
+            }
+            else {
+                var name = ts.isComputedPropertyName(propertyName) ? propertyName.expression
+                    : ts.isIdentifier(propertyName) ? ts.createStringLiteral(ts.unescapeLeadingUnderscores(propertyName.escapedText))
+                        : propertyName;
+                var descriptor = ts.createPropertyDescriptor({ value: initializer, configurable: true, writable: true, enumerable: true });
+                return ts.createObjectDefinePropertyCall(receiver, name, descriptor);
+            }
+        }
+        function enableSubstitutionForClassAliases() {
+            if ((enabledSubstitutions & 1) === 0) {
+                enabledSubstitutions |= 1;
+                context.enableSubstitution(75);
+                classAliases = [];
+            }
+        }
+        function onSubstituteNode(hint, node) {
+            node = previousOnSubstituteNode(hint, node);
+            if (hint === 1) {
+                return substituteExpression(node);
+            }
+            return node;
+        }
+        function substituteExpression(node) {
+            switch (node.kind) {
+                case 75:
+                    return substituteExpressionIdentifier(node);
+            }
+            return node;
+        }
+        function substituteExpressionIdentifier(node) {
+            return trySubstituteClassAlias(node) || node;
+        }
+        function trySubstituteClassAlias(node) {
+            if (enabledSubstitutions & 1) {
+                if (resolver.getNodeCheckFlags(node) & 33554432) {
+                    var declaration = resolver.getReferencedValueDeclaration(node);
+                    if (declaration) {
+                        var classAlias = classAliases[declaration.id];
+                        if (classAlias) {
+                            var clone_2 = ts.getSynthesizedClone(classAlias);
+                            ts.setSourceMapRange(clone_2, node);
+                            ts.setCommentRange(clone_2, node);
+                            return clone_2;
+                        }
+                    }
+                }
+            }
+            return undefined;
+        }
+        function getPropertyNameExpressionIfNeeded(name, shouldHoist) {
+            if (ts.isComputedPropertyName(name)) {
+                var expression = ts.visitNode(name.expression, visitor, ts.isExpression);
+                var innerExpression = ts.skipPartiallyEmittedExpressions(expression);
+                var inlinable = ts.isSimpleInlineableExpression(innerExpression);
+                var alreadyTransformed = ts.isAssignmentExpression(innerExpression) && ts.isGeneratedIdentifier(innerExpression.left);
+                if (!alreadyTransformed && !inlinable && shouldHoist) {
+                    var generatedName = ts.getGeneratedNameForNode(name);
+                    hoistVariableDeclaration(generatedName);
+                    return ts.createAssignment(generatedName, expression);
+                }
+                return (inlinable || ts.isIdentifier(innerExpression)) ? undefined : expression;
+            }
+        }
+        function startPrivateIdentifierEnvironment() {
+            privateIdentifierEnvironmentStack.push(currentPrivateIdentifierEnvironment);
+            currentPrivateIdentifierEnvironment = undefined;
+        }
+        function endPrivateIdentifierEnvironment() {
+            currentPrivateIdentifierEnvironment = privateIdentifierEnvironmentStack.pop();
+        }
+        function addPrivateIdentifierToEnvironment(name) {
+            var text = ts.getTextOfPropertyName(name);
+            var weakMapName = ts.createOptimisticUniqueName("_" + text.substring(1));
+            weakMapName.autoGenerateFlags |= 8;
+            hoistVariableDeclaration(weakMapName);
+            (currentPrivateIdentifierEnvironment || (currentPrivateIdentifierEnvironment = ts.createUnderscoreEscapedMap()))
+                .set(name.escapedText, { placement: 0, weakMapName: weakMapName });
+            (pendingExpressions || (pendingExpressions = [])).push(ts.createAssignment(weakMapName, ts.createNew(ts.createIdentifier("WeakMap"), undefined, [])));
+        }
+        function accessPrivateIdentifier(name) {
+            if (currentPrivateIdentifierEnvironment) {
+                var info = currentPrivateIdentifierEnvironment.get(name.escapedText);
+                if (info) {
+                    return info;
+                }
+            }
+            for (var i = privateIdentifierEnvironmentStack.length - 1; i >= 0; --i) {
+                var env = privateIdentifierEnvironmentStack[i];
+                if (!env) {
+                    continue;
+                }
+                var info = env.get(name.escapedText);
+                if (info) {
+                    return info;
+                }
+            }
+            return undefined;
+        }
+        function wrapPrivateIdentifierForDestructuringTarget(node) {
+            var parameter = ts.getGeneratedNameForNode(node);
+            var info = accessPrivateIdentifier(node.name);
+            if (!info) {
+                return ts.visitEachChild(node, visitor, context);
+            }
+            var receiver = node.expression;
+            if (ts.isThisProperty(node) || ts.isSuperProperty(node) || !ts.isSimpleCopiableExpression(node.expression)) {
+                receiver = ts.createTempVariable(hoistVariableDeclaration);
+                receiver.autoGenerateFlags |= 8;
+                (pendingExpressions || (pendingExpressions = [])).push(ts.createBinary(receiver, 62, node.expression));
+            }
+            return ts.createPropertyAccess(ts.createParen(ts.createObjectLiteral([
+                ts.createSetAccessor(undefined, undefined, "value", [ts.createParameter(undefined, undefined, undefined, parameter, undefined, undefined, undefined)], ts.createBlock([ts.createExpressionStatement(createPrivateIdentifierAssignment(info, receiver, parameter, 62))]))
+            ])), "value");
+        }
+        function visitArrayAssignmentTarget(node) {
+            var target = ts.getTargetOfBindingOrAssignmentElement(node);
+            if (target && ts.isPrivateIdentifierPropertyAccessExpression(target)) {
+                var wrapped = wrapPrivateIdentifierForDestructuringTarget(target);
+                if (ts.isAssignmentExpression(node)) {
+                    return ts.updateBinary(node, wrapped, ts.visitNode(node.right, visitor, ts.isExpression), node.operatorToken);
+                }
+                else if (ts.isSpreadElement(node)) {
+                    return ts.updateSpread(node, wrapped);
+                }
+                else {
+                    return wrapped;
+                }
+            }
+            return ts.visitNode(node, visitorDestructuringTarget);
+        }
+        function visitObjectAssignmentTarget(node) {
+            if (ts.isPropertyAssignment(node)) {
+                var target = ts.getTargetOfBindingOrAssignmentElement(node);
+                if (target && ts.isPrivateIdentifierPropertyAccessExpression(target)) {
+                    var initializer = ts.getInitializerOfBindingOrAssignmentElement(node);
+                    var wrapped = wrapPrivateIdentifierForDestructuringTarget(target);
+                    return ts.updatePropertyAssignment(node, ts.visitNode(node.name, visitor), initializer ? ts.createAssignment(wrapped, ts.visitNode(initializer, visitor)) : wrapped);
+                }
+                return ts.updatePropertyAssignment(node, ts.visitNode(node.name, visitor), ts.visitNode(node.initializer, visitorDestructuringTarget));
+            }
+            return ts.visitNode(node, visitor);
+        }
+        function visitAssignmentPattern(node) {
+            if (ts.isArrayLiteralExpression(node)) {
+                return ts.updateArrayLiteral(node, ts.visitNodes(node.elements, visitArrayAssignmentTarget, ts.isExpression));
+            }
+            else {
+                return ts.updateObjectLiteral(node, ts.visitNodes(node.properties, visitObjectAssignmentTarget, ts.isObjectLiteralElementLike));
+            }
+        }
+    }
+    ts.transformClassFields = transformClassFields;
+    function createPrivateInstanceFieldInitializer(receiver, initializer, weakMapName) {
+        return ts.createCall(ts.createPropertyAccess(weakMapName, "set"), undefined, [receiver, initializer || ts.createVoidZero()]);
+    }
+    ts.classPrivateFieldGetHelper = {
+        name: "typescript:classPrivateFieldGet",
+        scoped: false,
+        text: "\n            var __classPrivateFieldGet = (this && this.__classPrivateFieldGet) || function (receiver, privateMap) {\n                if (!privateMap.has(receiver)) {\n                    throw new TypeError(\"attempted to get private field on non-instance\");\n                }\n                return privateMap.get(receiver);\n            };"
+    };
+    function createClassPrivateFieldGetHelper(context, receiver, privateField) {
+        context.requestEmitHelper(ts.classPrivateFieldGetHelper);
+        return ts.createCall(ts.getUnscopedHelperName("__classPrivateFieldGet"), undefined, [receiver, privateField]);
+    }
+    ts.classPrivateFieldSetHelper = {
+        name: "typescript:classPrivateFieldSet",
+        scoped: false,
+        text: "\n            var __classPrivateFieldSet = (this && this.__classPrivateFieldSet) || function (receiver, privateMap, value) {\n                if (!privateMap.has(receiver)) {\n                    throw new TypeError(\"attempted to set private field on non-instance\");\n                }\n                privateMap.set(receiver, value);\n                return value;\n            };"
+    };
+    function createClassPrivateFieldSetHelper(context, receiver, privateField, value) {
+        context.requestEmitHelper(ts.classPrivateFieldSetHelper);
+        return ts.createCall(ts.getUnscopedHelperName("__classPrivateFieldSet"), undefined, [receiver, privateField, value]);
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformES2017(context) {
+        var resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var resolver = context.getEmitResolver();
+        var compilerOptions = context.getCompilerOptions();
+        var languageVersion = ts.getEmitScriptTarget(compilerOptions);
+        var enabledSubstitutions;
+        var enclosingSuperContainerFlags = 0;
+        var enclosingFunctionParameterNames;
+        var capturedSuperProperties;
+        var hasSuperElementAccess;
+        var substitutedSuperAccessors = [];
+        var contextFlags = 0;
+        var previousOnEmitNode = context.onEmitNode;
+        var previousOnSubstituteNode = context.onSubstituteNode;
+        context.onEmitNode = onEmitNode;
+        context.onSubstituteNode = onSubstituteNode;
+        return ts.chainBundle(transformSourceFile);
+        function transformSourceFile(node) {
+            if (node.isDeclarationFile) {
+                return node;
+            }
+            setContextFlag(1, false);
+            setContextFlag(2, !ts.isEffectiveStrictModeSourceFile(node, compilerOptions));
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            return visited;
+        }
+        function setContextFlag(flag, val) {
+            contextFlags = val ? contextFlags | flag : contextFlags & ~flag;
+        }
+        function inContext(flags) {
+            return (contextFlags & flags) !== 0;
+        }
+        function inTopLevelContext() {
+            return !inContext(1);
+        }
+        function inHasLexicalThisContext() {
+            return inContext(2);
+        }
+        function doWithContext(flags, cb, value) {
+            var contextFlagsToSet = flags & ~contextFlags;
+            if (contextFlagsToSet) {
+                setContextFlag(contextFlagsToSet, true);
+                var result = cb(value);
+                setContextFlag(contextFlagsToSet, false);
+                return result;
+            }
+            return cb(value);
+        }
+        function visitDefault(node) {
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitor(node) {
+            if ((node.transformFlags & 64) === 0) {
+                return node;
+            }
+            switch (node.kind) {
+                case 126:
+                    return undefined;
+                case 206:
+                    return visitAwaitExpression(node);
+                case 161:
+                    return doWithContext(1 | 2, visitMethodDeclaration, node);
+                case 244:
+                    return doWithContext(1 | 2, visitFunctionDeclaration, node);
+                case 201:
+                    return doWithContext(1 | 2, visitFunctionExpression, node);
+                case 202:
+                    return doWithContext(1, visitArrowFunction, node);
+                case 194:
+                    if (capturedSuperProperties && ts.isPropertyAccessExpression(node) && node.expression.kind === 102) {
+                        capturedSuperProperties.set(node.name.escapedText, true);
+                    }
+                    return ts.visitEachChild(node, visitor, context);
+                case 195:
+                    if (capturedSuperProperties && node.expression.kind === 102) {
+                        hasSuperElementAccess = true;
+                    }
+                    return ts.visitEachChild(node, visitor, context);
+                case 163:
+                case 164:
+                case 162:
+                case 245:
+                case 214:
+                    return doWithContext(1 | 2, visitDefault, node);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function asyncBodyVisitor(node) {
+            if (ts.isNodeWithPossibleHoistedDeclaration(node)) {
+                switch (node.kind) {
+                    case 225:
+                        return visitVariableStatementInAsyncBody(node);
+                    case 230:
+                        return visitForStatementInAsyncBody(node);
+                    case 231:
+                        return visitForInStatementInAsyncBody(node);
+                    case 232:
+                        return visitForOfStatementInAsyncBody(node);
+                    case 280:
+                        return visitCatchClauseInAsyncBody(node);
+                    case 223:
+                    case 237:
+                    case 251:
+                    case 277:
+                    case 278:
+                    case 240:
+                    case 228:
+                    case 229:
+                    case 227:
+                    case 236:
+                    case 238:
+                        return ts.visitEachChild(node, asyncBodyVisitor, context);
+                    default:
+                        return ts.Debug.assertNever(node, "Unhandled node.");
+                }
+            }
+            return visitor(node);
+        }
+        function visitCatchClauseInAsyncBody(node) {
+            var catchClauseNames = ts.createUnderscoreEscapedMap();
+            recordDeclarationName(node.variableDeclaration, catchClauseNames);
+            var catchClauseUnshadowedNames;
+            catchClauseNames.forEach(function (_, escapedName) {
+                if (enclosingFunctionParameterNames.has(escapedName)) {
+                    if (!catchClauseUnshadowedNames) {
+                        catchClauseUnshadowedNames = ts.cloneMap(enclosingFunctionParameterNames);
+                    }
+                    catchClauseUnshadowedNames.delete(escapedName);
+                }
+            });
+            if (catchClauseUnshadowedNames) {
+                var savedEnclosingFunctionParameterNames = enclosingFunctionParameterNames;
+                enclosingFunctionParameterNames = catchClauseUnshadowedNames;
+                var result = ts.visitEachChild(node, asyncBodyVisitor, context);
+                enclosingFunctionParameterNames = savedEnclosingFunctionParameterNames;
+                return result;
+            }
+            else {
+                return ts.visitEachChild(node, asyncBodyVisitor, context);
+            }
+        }
+        function visitVariableStatementInAsyncBody(node) {
+            if (isVariableDeclarationListWithCollidingName(node.declarationList)) {
+                var expression = visitVariableDeclarationListWithCollidingNames(node.declarationList, false);
+                return expression ? ts.createExpressionStatement(expression) : undefined;
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitForInStatementInAsyncBody(node) {
+            return ts.updateForIn(node, isVariableDeclarationListWithCollidingName(node.initializer)
+                ? visitVariableDeclarationListWithCollidingNames(node.initializer, true)
+                : ts.visitNode(node.initializer, visitor, ts.isForInitializer), ts.visitNode(node.expression, visitor, ts.isExpression), ts.visitNode(node.statement, asyncBodyVisitor, ts.isStatement, ts.liftToBlock));
+        }
+        function visitForOfStatementInAsyncBody(node) {
+            return ts.updateForOf(node, ts.visitNode(node.awaitModifier, visitor, ts.isToken), isVariableDeclarationListWithCollidingName(node.initializer)
+                ? visitVariableDeclarationListWithCollidingNames(node.initializer, true)
+                : ts.visitNode(node.initializer, visitor, ts.isForInitializer), ts.visitNode(node.expression, visitor, ts.isExpression), ts.visitNode(node.statement, asyncBodyVisitor, ts.isStatement, ts.liftToBlock));
+        }
+        function visitForStatementInAsyncBody(node) {
+            var initializer = node.initializer;
+            return ts.updateFor(node, isVariableDeclarationListWithCollidingName(initializer)
+                ? visitVariableDeclarationListWithCollidingNames(initializer, false)
+                : ts.visitNode(node.initializer, visitor, ts.isForInitializer), ts.visitNode(node.condition, visitor, ts.isExpression), ts.visitNode(node.incrementor, visitor, ts.isExpression), ts.visitNode(node.statement, asyncBodyVisitor, ts.isStatement, ts.liftToBlock));
+        }
+        function visitAwaitExpression(node) {
+            if (inTopLevelContext()) {
+                return ts.visitEachChild(node, visitor, context);
+            }
+            return ts.setOriginalNode(ts.setTextRange(ts.createYield(undefined, ts.visitNode(node.expression, visitor, ts.isExpression)), node), node);
+        }
+        function visitMethodDeclaration(node) {
+            return ts.updateMethod(node, undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.asteriskToken, node.name, undefined, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.getFunctionFlags(node) & 2
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
+        }
+        function visitFunctionDeclaration(node) {
+            return ts.updateFunctionDeclaration(node, undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.getFunctionFlags(node) & 2
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
+        }
+        function visitFunctionExpression(node) {
+            return ts.updateFunctionExpression(node, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.getFunctionFlags(node) & 2
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
+        }
+        function visitArrowFunction(node) {
+            return ts.updateArrowFunction(node, ts.visitNodes(node.modifiers, visitor, ts.isModifier), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, node.equalsGreaterThanToken, ts.getFunctionFlags(node) & 2
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
+        }
+        function recordDeclarationName(_a, names) {
+            var name = _a.name;
+            if (ts.isIdentifier(name)) {
+                names.set(name.escapedText, true);
+            }
+            else {
+                for (var _i = 0, _b = name.elements; _i < _b.length; _i++) {
+                    var element = _b[_i];
+                    if (!ts.isOmittedExpression(element)) {
+                        recordDeclarationName(element, names);
+                    }
+                }
+            }
+        }
+        function isVariableDeclarationListWithCollidingName(node) {
+            return !!node
+                && ts.isVariableDeclarationList(node)
+                && !(node.flags & 3)
+                && node.declarations.some(collidesWithParameterName);
+        }
+        function visitVariableDeclarationListWithCollidingNames(node, hasReceiver) {
+            hoistVariableDeclarationList(node);
+            var variables = ts.getInitializedVariables(node);
+            if (variables.length === 0) {
+                if (hasReceiver) {
+                    return ts.visitNode(ts.convertToAssignmentElementTarget(node.declarations[0].name), visitor, ts.isExpression);
+                }
+                return undefined;
+            }
+            return ts.inlineExpressions(ts.map(variables, transformInitializedVariable));
+        }
+        function hoistVariableDeclarationList(node) {
+            ts.forEach(node.declarations, hoistVariable);
+        }
+        function hoistVariable(_a) {
+            var name = _a.name;
+            if (ts.isIdentifier(name)) {
+                hoistVariableDeclaration(name);
+            }
+            else {
+                for (var _i = 0, _b = name.elements; _i < _b.length; _i++) {
+                    var element = _b[_i];
+                    if (!ts.isOmittedExpression(element)) {
+                        hoistVariable(element);
+                    }
+                }
+            }
+        }
+        function transformInitializedVariable(node) {
+            var converted = ts.setSourceMapRange(ts.createAssignment(ts.convertToAssignmentElementTarget(node.name), node.initializer), node);
+            return ts.visitNode(converted, visitor, ts.isExpression);
+        }
+        function collidesWithParameterName(_a) {
+            var name = _a.name;
+            if (ts.isIdentifier(name)) {
+                return enclosingFunctionParameterNames.has(name.escapedText);
+            }
+            else {
+                for (var _i = 0, _b = name.elements; _i < _b.length; _i++) {
+                    var element = _b[_i];
+                    if (!ts.isOmittedExpression(element) && collidesWithParameterName(element)) {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
+        function transformAsyncFunctionBody(node) {
+            resumeLexicalEnvironment();
+            var original = ts.getOriginalNode(node, ts.isFunctionLike);
+            var nodeType = original.type;
+            var promiseConstructor = languageVersion < 2 ? getPromiseConstructor(nodeType) : undefined;
+            var isArrowFunction = node.kind === 202;
+            var hasLexicalArguments = (resolver.getNodeCheckFlags(node) & 8192) !== 0;
+            var savedEnclosingFunctionParameterNames = enclosingFunctionParameterNames;
+            enclosingFunctionParameterNames = ts.createUnderscoreEscapedMap();
+            for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+                var parameter = _a[_i];
+                recordDeclarationName(parameter, enclosingFunctionParameterNames);
+            }
+            var savedCapturedSuperProperties = capturedSuperProperties;
+            var savedHasSuperElementAccess = hasSuperElementAccess;
+            if (!isArrowFunction) {
+                capturedSuperProperties = ts.createUnderscoreEscapedMap();
+                hasSuperElementAccess = false;
+            }
+            var result;
+            if (!isArrowFunction) {
+                var statements = [];
+                var statementOffset = ts.addPrologue(statements, node.body.statements, false, visitor);
+                statements.push(ts.createReturn(createAwaiterHelper(context, inHasLexicalThisContext(), hasLexicalArguments, promiseConstructor, transformAsyncFunctionBodyWorker(node.body, statementOffset))));
+                ts.insertStatementsAfterStandardPrologue(statements, endLexicalEnvironment());
+                var emitSuperHelpers = languageVersion >= 2 && resolver.getNodeCheckFlags(node) & (4096 | 2048);
+                if (emitSuperHelpers) {
+                    enableSubstitutionForAsyncMethodsWithSuper();
+                    if (ts.hasEntries(capturedSuperProperties)) {
+                        var variableStatement = createSuperAccessVariableStatement(resolver, node, capturedSuperProperties);
+                        substitutedSuperAccessors[ts.getNodeId(variableStatement)] = true;
+                        ts.insertStatementsAfterStandardPrologue(statements, [variableStatement]);
+                    }
+                }
+                var block = ts.createBlock(statements, true);
+                ts.setTextRange(block, node.body);
+                if (emitSuperHelpers && hasSuperElementAccess) {
+                    if (resolver.getNodeCheckFlags(node) & 4096) {
+                        ts.addEmitHelper(block, ts.advancedAsyncSuperHelper);
+                    }
+                    else if (resolver.getNodeCheckFlags(node) & 2048) {
+                        ts.addEmitHelper(block, ts.asyncSuperHelper);
+                    }
+                }
+                result = block;
+            }
+            else {
+                var expression = createAwaiterHelper(context, inHasLexicalThisContext(), hasLexicalArguments, promiseConstructor, transformAsyncFunctionBodyWorker(node.body));
+                var declarations = endLexicalEnvironment();
+                if (ts.some(declarations)) {
+                    var block = ts.convertToFunctionBody(expression);
+                    result = ts.updateBlock(block, ts.setTextRange(ts.createNodeArray(ts.concatenate(declarations, block.statements)), block.statements));
+                }
+                else {
+                    result = expression;
+                }
+            }
+            enclosingFunctionParameterNames = savedEnclosingFunctionParameterNames;
+            if (!isArrowFunction) {
+                capturedSuperProperties = savedCapturedSuperProperties;
+                hasSuperElementAccess = savedHasSuperElementAccess;
+            }
+            return result;
+        }
+        function transformAsyncFunctionBodyWorker(body, start) {
+            if (ts.isBlock(body)) {
+                return ts.updateBlock(body, ts.visitNodes(body.statements, asyncBodyVisitor, ts.isStatement, start));
+            }
+            else {
+                return ts.convertToFunctionBody(ts.visitNode(body, asyncBodyVisitor, ts.isConciseBody));
+            }
+        }
+        function getPromiseConstructor(type) {
+            var typeName = type && ts.getEntityNameFromTypeNode(type);
+            if (typeName && ts.isEntityName(typeName)) {
+                var serializationKind = resolver.getTypeReferenceSerializationKind(typeName);
+                if (serializationKind === ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue
+                    || serializationKind === ts.TypeReferenceSerializationKind.Unknown) {
+                    return typeName;
+                }
+            }
+            return undefined;
+        }
+        function enableSubstitutionForAsyncMethodsWithSuper() {
+            if ((enabledSubstitutions & 1) === 0) {
+                enabledSubstitutions |= 1;
+                context.enableSubstitution(196);
+                context.enableSubstitution(194);
+                context.enableSubstitution(195);
+                context.enableEmitNotification(245);
+                context.enableEmitNotification(161);
+                context.enableEmitNotification(163);
+                context.enableEmitNotification(164);
+                context.enableEmitNotification(162);
+                context.enableEmitNotification(225);
+            }
+        }
+        function onEmitNode(hint, node, emitCallback) {
+            if (enabledSubstitutions & 1 && isSuperContainer(node)) {
+                var superContainerFlags = resolver.getNodeCheckFlags(node) & (2048 | 4096);
+                if (superContainerFlags !== enclosingSuperContainerFlags) {
+                    var savedEnclosingSuperContainerFlags = enclosingSuperContainerFlags;
+                    enclosingSuperContainerFlags = superContainerFlags;
+                    previousOnEmitNode(hint, node, emitCallback);
+                    enclosingSuperContainerFlags = savedEnclosingSuperContainerFlags;
+                    return;
+                }
+            }
+            else if (enabledSubstitutions && substitutedSuperAccessors[ts.getNodeId(node)]) {
+                var savedEnclosingSuperContainerFlags = enclosingSuperContainerFlags;
+                enclosingSuperContainerFlags = 0;
+                previousOnEmitNode(hint, node, emitCallback);
+                enclosingSuperContainerFlags = savedEnclosingSuperContainerFlags;
+                return;
+            }
+            previousOnEmitNode(hint, node, emitCallback);
+        }
+        function onSubstituteNode(hint, node) {
+            node = previousOnSubstituteNode(hint, node);
+            if (hint === 1 && enclosingSuperContainerFlags) {
+                return substituteExpression(node);
+            }
+            return node;
+        }
+        function substituteExpression(node) {
+            switch (node.kind) {
+                case 194:
+                    return substitutePropertyAccessExpression(node);
+                case 195:
+                    return substituteElementAccessExpression(node);
+                case 196:
+                    return substituteCallExpression(node);
+            }
+            return node;
+        }
+        function substitutePropertyAccessExpression(node) {
+            if (node.expression.kind === 102) {
+                return ts.setTextRange(ts.createPropertyAccess(ts.createFileLevelUniqueName("_super"), node.name), node);
+            }
+            return node;
+        }
+        function substituteElementAccessExpression(node) {
+            if (node.expression.kind === 102) {
+                return createSuperElementAccessInAsyncMethod(node.argumentExpression, node);
+            }
+            return node;
+        }
+        function substituteCallExpression(node) {
+            var expression = node.expression;
+            if (ts.isSuperProperty(expression)) {
+                var argumentExpression = ts.isPropertyAccessExpression(expression)
+                    ? substitutePropertyAccessExpression(expression)
+                    : substituteElementAccessExpression(expression);
+                return ts.createCall(ts.createPropertyAccess(argumentExpression, "call"), undefined, __spreadArrays([
+                    ts.createThis()
+                ], node.arguments));
+            }
+            return node;
+        }
+        function isSuperContainer(node) {
+            var kind = node.kind;
+            return kind === 245
+                || kind === 162
+                || kind === 161
+                || kind === 163
+                || kind === 164;
+        }
+        function createSuperElementAccessInAsyncMethod(argumentExpression, location) {
+            if (enclosingSuperContainerFlags & 4096) {
+                return ts.setTextRange(ts.createPropertyAccess(ts.createCall(ts.createFileLevelUniqueName("_superIndex"), undefined, [argumentExpression]), "value"), location);
+            }
+            else {
+                return ts.setTextRange(ts.createCall(ts.createFileLevelUniqueName("_superIndex"), undefined, [argumentExpression]), location);
+            }
+        }
+    }
+    ts.transformES2017 = transformES2017;
+    function createSuperAccessVariableStatement(resolver, node, names) {
+        var hasBinding = (resolver.getNodeCheckFlags(node) & 4096) !== 0;
+        var accessors = [];
+        names.forEach(function (_, key) {
+            var name = ts.unescapeLeadingUnderscores(key);
+            var getterAndSetter = [];
+            getterAndSetter.push(ts.createPropertyAssignment("get", ts.createArrowFunction(undefined, undefined, [], undefined, undefined, ts.setEmitFlags(ts.createPropertyAccess(ts.setEmitFlags(ts.createSuper(), 4), name), 4))));
+            if (hasBinding) {
+                getterAndSetter.push(ts.createPropertyAssignment("set", ts.createArrowFunction(undefined, undefined, [
+                    ts.createParameter(undefined, undefined, undefined, "v", undefined, undefined, undefined)
+                ], undefined, undefined, ts.createAssignment(ts.setEmitFlags(ts.createPropertyAccess(ts.setEmitFlags(ts.createSuper(), 4), name), 4), ts.createIdentifier("v")))));
+            }
+            accessors.push(ts.createPropertyAssignment(name, ts.createObjectLiteral(getterAndSetter)));
+        });
+        return ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+            ts.createVariableDeclaration(ts.createFileLevelUniqueName("_super"), undefined, ts.createCall(ts.createPropertyAccess(ts.createIdentifier("Object"), "create"), undefined, [
+                ts.createNull(),
+                ts.createObjectLiteral(accessors, true)
+            ]))
+        ], 2));
+    }
+    ts.createSuperAccessVariableStatement = createSuperAccessVariableStatement;
+    ts.awaiterHelper = {
+        name: "typescript:awaiter",
+        importName: "__awaiter",
+        scoped: false,
+        priority: 5,
+        text: "\n            var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n                function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\n                return new (P || (P = Promise))(function (resolve, reject) {\n                    function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n                    function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n                    function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\n                    step((generator = generator.apply(thisArg, _arguments || [])).next());\n                });\n            };"
+    };
+    function createAwaiterHelper(context, hasLexicalThis, hasLexicalArguments, promiseConstructor, body) {
+        context.requestEmitHelper(ts.awaiterHelper);
+        var generatorFunc = ts.createFunctionExpression(undefined, ts.createToken(41), undefined, undefined, [], undefined, body);
+        (generatorFunc.emitNode || (generatorFunc.emitNode = {})).flags |= 262144 | 524288;
+        return ts.createCall(ts.getUnscopedHelperName("__awaiter"), undefined, [
+            hasLexicalThis ? ts.createThis() : ts.createVoidZero(),
+            hasLexicalArguments ? ts.createIdentifier("arguments") : ts.createVoidZero(),
+            promiseConstructor ? ts.createExpressionFromEntityName(promiseConstructor) : ts.createVoidZero(),
+            generatorFunc
+        ]);
+    }
+    ts.asyncSuperHelper = {
+        name: "typescript:async-super",
+        scoped: true,
+        text: ts.helperString(__makeTemplateObject(["\n            const ", " = name => super[name];"], ["\n            const ", " = name => super[name];"]), "_superIndex")
+    };
+    ts.advancedAsyncSuperHelper = {
+        name: "typescript:advanced-async-super",
+        scoped: true,
+        text: ts.helperString(__makeTemplateObject(["\n            const ", " = (function (geti, seti) {\n                const cache = Object.create(null);\n                return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });\n            })(name => super[name], (name, value) => super[name] = value);"], ["\n            const ", " = (function (geti, seti) {\n                const cache = Object.create(null);\n                return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });\n            })(name => super[name], (name, value) => super[name] = value);"]), "_superIndex")
+    };
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformES2018(context) {
+        var resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var resolver = context.getEmitResolver();
+        var compilerOptions = context.getCompilerOptions();
+        var languageVersion = ts.getEmitScriptTarget(compilerOptions);
+        var previousOnEmitNode = context.onEmitNode;
+        context.onEmitNode = onEmitNode;
+        var previousOnSubstituteNode = context.onSubstituteNode;
+        context.onSubstituteNode = onSubstituteNode;
+        var exportedVariableStatement = false;
+        var enabledSubstitutions;
+        var enclosingFunctionFlags;
+        var enclosingSuperContainerFlags = 0;
+        var hierarchyFacts = 0;
+        var currentSourceFile;
+        var taggedTemplateStringDeclarations;
+        var capturedSuperProperties;
+        var hasSuperElementAccess;
+        var substitutedSuperAccessors = [];
+        return ts.chainBundle(transformSourceFile);
+        function affectsSubtree(excludeFacts, includeFacts) {
+            return hierarchyFacts !== (hierarchyFacts & ~excludeFacts | includeFacts);
+        }
+        function enterSubtree(excludeFacts, includeFacts) {
+            var ancestorFacts = hierarchyFacts;
+            hierarchyFacts = (hierarchyFacts & ~excludeFacts | includeFacts) & 3;
+            return ancestorFacts;
+        }
+        function exitSubtree(ancestorFacts) {
+            hierarchyFacts = ancestorFacts;
+        }
+        function recordTaggedTemplateString(temp) {
+            taggedTemplateStringDeclarations = ts.append(taggedTemplateStringDeclarations, ts.createVariableDeclaration(temp));
+        }
+        function transformSourceFile(node) {
+            if (node.isDeclarationFile) {
+                return node;
+            }
+            currentSourceFile = node;
+            var visited = visitSourceFile(node);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            taggedTemplateStringDeclarations = undefined;
+            return visited;
+        }
+        function visitor(node) {
+            return visitorWorker(node, false);
+        }
+        function visitorNoDestructuringValue(node) {
+            return visitorWorker(node, true);
+        }
+        function visitorNoAsyncModifier(node) {
+            if (node.kind === 126) {
+                return undefined;
+            }
+            return node;
+        }
+        function doWithHierarchyFacts(cb, value, excludeFacts, includeFacts) {
+            if (affectsSubtree(excludeFacts, includeFacts)) {
+                var ancestorFacts = enterSubtree(excludeFacts, includeFacts);
+                var result = cb(value);
+                exitSubtree(ancestorFacts);
+                return result;
+            }
+            return cb(value);
+        }
+        function visitDefault(node) {
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitorWorker(node, noDestructuringValue) {
+            if ((node.transformFlags & 32) === 0) {
+                return node;
+            }
+            switch (node.kind) {
+                case 206:
+                    return visitAwaitExpression(node);
+                case 212:
+                    return visitYieldExpression(node);
+                case 235:
+                    return visitReturnStatement(node);
+                case 238:
+                    return visitLabeledStatement(node);
+                case 193:
+                    return visitObjectLiteralExpression(node);
+                case 209:
+                    return visitBinaryExpression(node, noDestructuringValue);
+                case 280:
+                    return visitCatchClause(node);
+                case 225:
+                    return visitVariableStatement(node);
+                case 242:
+                    return visitVariableDeclaration(node);
+                case 228:
+                case 229:
+                case 231:
+                    return doWithHierarchyFacts(visitDefault, node, 0, 2);
+                case 232:
+                    return visitForOfStatement(node, undefined);
+                case 230:
+                    return doWithHierarchyFacts(visitForStatement, node, 0, 2);
+                case 205:
+                    return visitVoidExpression(node);
+                case 162:
+                    return doWithHierarchyFacts(visitConstructorDeclaration, node, 2, 1);
+                case 161:
+                    return doWithHierarchyFacts(visitMethodDeclaration, node, 2, 1);
+                case 163:
+                    return doWithHierarchyFacts(visitGetAccessorDeclaration, node, 2, 1);
+                case 164:
+                    return doWithHierarchyFacts(visitSetAccessorDeclaration, node, 2, 1);
+                case 244:
+                    return doWithHierarchyFacts(visitFunctionDeclaration, node, 2, 1);
+                case 201:
+                    return doWithHierarchyFacts(visitFunctionExpression, node, 2, 1);
+                case 202:
+                    return doWithHierarchyFacts(visitArrowFunction, node, 2, 0);
+                case 156:
+                    return visitParameter(node);
+                case 226:
+                    return visitExpressionStatement(node);
+                case 200:
+                    return visitParenthesizedExpression(node, noDestructuringValue);
+                case 198:
+                    return visitTaggedTemplateExpression(node);
+                case 194:
+                    if (capturedSuperProperties && ts.isPropertyAccessExpression(node) && node.expression.kind === 102) {
+                        capturedSuperProperties.set(node.name.escapedText, true);
+                    }
+                    return ts.visitEachChild(node, visitor, context);
+                case 195:
+                    if (capturedSuperProperties && node.expression.kind === 102) {
+                        hasSuperElementAccess = true;
+                    }
+                    return ts.visitEachChild(node, visitor, context);
+                case 245:
+                case 214:
+                    return doWithHierarchyFacts(visitDefault, node, 2, 1);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function visitAwaitExpression(node) {
+            if (enclosingFunctionFlags & 2 && enclosingFunctionFlags & 1) {
+                return ts.setOriginalNode(ts.setTextRange(ts.createYield(createAwaitHelper(context, ts.visitNode(node.expression, visitor, ts.isExpression))), node), node);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitYieldExpression(node) {
+            if (enclosingFunctionFlags & 2 && enclosingFunctionFlags & 1) {
+                if (node.asteriskToken) {
+                    var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+                    return ts.setOriginalNode(ts.setTextRange(ts.createYield(createAwaitHelper(context, ts.updateYield(node, node.asteriskToken, createAsyncDelegatorHelper(context, createAsyncValuesHelper(context, expression, expression), expression)))), node), node);
+                }
+                return ts.setOriginalNode(ts.setTextRange(ts.createYield(createDownlevelAwait(node.expression
+                    ? ts.visitNode(node.expression, visitor, ts.isExpression)
+                    : ts.createVoidZero())), node), node);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitReturnStatement(node) {
+            if (enclosingFunctionFlags & 2 && enclosingFunctionFlags & 1) {
+                return ts.updateReturn(node, createDownlevelAwait(node.expression ? ts.visitNode(node.expression, visitor, ts.isExpression) : ts.createVoidZero()));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitLabeledStatement(node) {
+            if (enclosingFunctionFlags & 2) {
+                var statement = ts.unwrapInnermostStatementOfLabel(node);
+                if (statement.kind === 232 && statement.awaitModifier) {
+                    return visitForOfStatement(statement, node);
+                }
+                return ts.restoreEnclosingLabel(ts.visitNode(statement, visitor, ts.isStatement, ts.liftToBlock), node);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function chunkObjectLiteralElements(elements) {
+            var chunkObject;
+            var objects = [];
+            for (var _i = 0, elements_4 = elements; _i < elements_4.length; _i++) {
+                var e = elements_4[_i];
+                if (e.kind === 283) {
+                    if (chunkObject) {
+                        objects.push(ts.createObjectLiteral(chunkObject));
+                        chunkObject = undefined;
+                    }
+                    var target = e.expression;
+                    objects.push(ts.visitNode(target, visitor, ts.isExpression));
+                }
+                else {
+                    chunkObject = ts.append(chunkObject, e.kind === 281
+                        ? ts.createPropertyAssignment(e.name, ts.visitNode(e.initializer, visitor, ts.isExpression))
+                        : ts.visitNode(e, visitor, ts.isObjectLiteralElementLike));
+                }
+            }
+            if (chunkObject) {
+                objects.push(ts.createObjectLiteral(chunkObject));
+            }
+            return objects;
+        }
+        function visitObjectLiteralExpression(node) {
+            if (node.transformFlags & 16384) {
+                var objects = chunkObjectLiteralElements(node.properties);
+                if (objects.length && objects[0].kind !== 193) {
+                    objects.unshift(ts.createObjectLiteral());
+                }
+                var expression = objects[0];
+                if (objects.length > 1) {
+                    for (var i = 1; i < objects.length; i++) {
+                        expression = createAssignHelper(context, [expression, objects[i]]);
+                    }
+                    return expression;
+                }
+                else {
+                    return createAssignHelper(context, objects);
+                }
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitExpressionStatement(node) {
+            return ts.visitEachChild(node, visitorNoDestructuringValue, context);
+        }
+        function visitParenthesizedExpression(node, noDestructuringValue) {
+            return ts.visitEachChild(node, noDestructuringValue ? visitorNoDestructuringValue : visitor, context);
+        }
+        function visitSourceFile(node) {
+            var ancestorFacts = enterSubtree(2, ts.isEffectiveStrictModeSourceFile(node, compilerOptions) ?
+                0 :
+                1);
+            exportedVariableStatement = false;
+            var visited = ts.visitEachChild(node, visitor, context);
+            var statement = ts.concatenate(visited.statements, taggedTemplateStringDeclarations && [
+                ts.createVariableStatement(undefined, ts.createVariableDeclarationList(taggedTemplateStringDeclarations))
+            ]);
+            var result = ts.updateSourceFileNode(visited, ts.setTextRange(ts.createNodeArray(statement), node.statements));
+            exitSubtree(ancestorFacts);
+            return result;
+        }
+        function visitTaggedTemplateExpression(node) {
+            return ts.processTaggedTemplateExpression(context, node, visitor, currentSourceFile, recordTaggedTemplateString, ts.ProcessLevel.LiftRestriction);
+        }
+        function visitBinaryExpression(node, noDestructuringValue) {
+            if (ts.isDestructuringAssignment(node) && node.left.transformFlags & 16384) {
+                return ts.flattenDestructuringAssignment(node, visitor, context, 1, !noDestructuringValue);
+            }
+            else if (node.operatorToken.kind === 27) {
+                return ts.updateBinary(node, ts.visitNode(node.left, visitorNoDestructuringValue, ts.isExpression), ts.visitNode(node.right, noDestructuringValue ? visitorNoDestructuringValue : visitor, ts.isExpression));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitCatchClause(node) {
+            if (node.variableDeclaration &&
+                ts.isBindingPattern(node.variableDeclaration.name) &&
+                node.variableDeclaration.name.transformFlags & 16384) {
+                var name = ts.getGeneratedNameForNode(node.variableDeclaration.name);
+                var updatedDecl = ts.updateVariableDeclaration(node.variableDeclaration, node.variableDeclaration.name, undefined, name);
+                var visitedBindings = ts.flattenDestructuringBinding(updatedDecl, visitor, context, 1);
+                var block = ts.visitNode(node.block, visitor, ts.isBlock);
+                if (ts.some(visitedBindings)) {
+                    block = ts.updateBlock(block, __spreadArrays([
+                        ts.createVariableStatement(undefined, visitedBindings)
+                    ], block.statements));
+                }
+                return ts.updateCatchClause(node, ts.updateVariableDeclaration(node.variableDeclaration, name, undefined, undefined), block);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitVariableStatement(node) {
+            if (ts.hasModifier(node, 1)) {
+                var savedExportedVariableStatement = exportedVariableStatement;
+                exportedVariableStatement = true;
+                var visited = ts.visitEachChild(node, visitor, context);
+                exportedVariableStatement = savedExportedVariableStatement;
+                return visited;
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitVariableDeclaration(node) {
+            if (exportedVariableStatement) {
+                var savedExportedVariableStatement = exportedVariableStatement;
+                exportedVariableStatement = false;
+                var visited = visitVariableDeclarationWorker(node, true);
+                exportedVariableStatement = savedExportedVariableStatement;
+                return visited;
+            }
+            return visitVariableDeclarationWorker(node, false);
+        }
+        function visitVariableDeclarationWorker(node, exportedVariableStatement) {
+            if (ts.isBindingPattern(node.name) && node.name.transformFlags & 16384) {
+                return ts.flattenDestructuringBinding(node, visitor, context, 1, undefined, exportedVariableStatement);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitForStatement(node) {
+            return ts.updateFor(node, ts.visitNode(node.initializer, visitorNoDestructuringValue, ts.isForInitializer), ts.visitNode(node.condition, visitor, ts.isExpression), ts.visitNode(node.incrementor, visitor, ts.isExpression), ts.visitNode(node.statement, visitor, ts.isStatement));
+        }
+        function visitVoidExpression(node) {
+            return ts.visitEachChild(node, visitorNoDestructuringValue, context);
+        }
+        function visitForOfStatement(node, outermostLabeledStatement) {
+            var ancestorFacts = enterSubtree(0, 2);
+            if (node.initializer.transformFlags & 16384) {
+                node = transformForOfStatementWithObjectRest(node);
+            }
+            var result = node.awaitModifier ?
+                transformForAwaitOfStatement(node, outermostLabeledStatement, ancestorFacts) :
+                ts.restoreEnclosingLabel(ts.visitEachChild(node, visitor, context), outermostLabeledStatement);
+            exitSubtree(ancestorFacts);
+            return result;
+        }
+        function transformForOfStatementWithObjectRest(node) {
+            var initializerWithoutParens = ts.skipParentheses(node.initializer);
+            if (ts.isVariableDeclarationList(initializerWithoutParens) || ts.isAssignmentPattern(initializerWithoutParens)) {
+                var bodyLocation = void 0;
+                var statementsLocation = void 0;
+                var temp = ts.createTempVariable(undefined);
+                var statements = [ts.createForOfBindingStatement(initializerWithoutParens, temp)];
+                if (ts.isBlock(node.statement)) {
+                    ts.addRange(statements, node.statement.statements);
+                    bodyLocation = node.statement;
+                    statementsLocation = node.statement.statements;
+                }
+                else if (node.statement) {
+                    ts.append(statements, node.statement);
+                    bodyLocation = node.statement;
+                    statementsLocation = node.statement;
+                }
+                return ts.updateForOf(node, node.awaitModifier, ts.setTextRange(ts.createVariableDeclarationList([
+                    ts.setTextRange(ts.createVariableDeclaration(temp), node.initializer)
+                ], 1), node.initializer), node.expression, ts.setTextRange(ts.createBlock(ts.setTextRange(ts.createNodeArray(statements), statementsLocation), true), bodyLocation));
+            }
+            return node;
+        }
+        function convertForOfStatementHead(node, boundValue) {
+            var binding = ts.createForOfBindingStatement(node.initializer, boundValue);
+            var bodyLocation;
+            var statementsLocation;
+            var statements = [ts.visitNode(binding, visitor, ts.isStatement)];
+            var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
+            if (ts.isBlock(statement)) {
+                ts.addRange(statements, statement.statements);
+                bodyLocation = statement;
+                statementsLocation = statement.statements;
+            }
+            else {
+                statements.push(statement);
+            }
+            return ts.setEmitFlags(ts.setTextRange(ts.createBlock(ts.setTextRange(ts.createNodeArray(statements), statementsLocation), true), bodyLocation), 48 | 384);
+        }
+        function createDownlevelAwait(expression) {
+            return enclosingFunctionFlags & 1
+                ? ts.createYield(undefined, createAwaitHelper(context, expression))
+                : ts.createAwait(expression);
+        }
+        function transformForAwaitOfStatement(node, outermostLabeledStatement, ancestorFacts) {
+            var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+            var iterator = ts.isIdentifier(expression) ? ts.getGeneratedNameForNode(expression) : ts.createTempVariable(undefined);
+            var result = ts.isIdentifier(expression) ? ts.getGeneratedNameForNode(iterator) : ts.createTempVariable(undefined);
+            var errorRecord = ts.createUniqueName("e");
+            var catchVariable = ts.getGeneratedNameForNode(errorRecord);
+            var returnMethod = ts.createTempVariable(undefined);
+            var callValues = createAsyncValuesHelper(context, expression, node.expression);
+            var callNext = ts.createCall(ts.createPropertyAccess(iterator, "next"), undefined, []);
+            var getDone = ts.createPropertyAccess(result, "done");
+            var getValue = ts.createPropertyAccess(result, "value");
+            var callReturn = ts.createFunctionCall(returnMethod, iterator, []);
+            hoistVariableDeclaration(errorRecord);
+            hoistVariableDeclaration(returnMethod);
+            var initializer = ancestorFacts & 2 ?
+                ts.inlineExpressions([ts.createAssignment(errorRecord, ts.createVoidZero()), callValues]) :
+                callValues;
+            var forStatement = ts.setEmitFlags(ts.setTextRange(ts.createFor(ts.setEmitFlags(ts.setTextRange(ts.createVariableDeclarationList([
+                ts.setTextRange(ts.createVariableDeclaration(iterator, undefined, initializer), node.expression),
+                ts.createVariableDeclaration(result)
+            ]), node.expression), 2097152), ts.createComma(ts.createAssignment(result, createDownlevelAwait(callNext)), ts.createLogicalNot(getDone)), undefined, convertForOfStatementHead(node, getValue)), node), 256);
+            return ts.createTry(ts.createBlock([
+                ts.restoreEnclosingLabel(forStatement, outermostLabeledStatement)
+            ]), ts.createCatchClause(ts.createVariableDeclaration(catchVariable), ts.setEmitFlags(ts.createBlock([
+                ts.createExpressionStatement(ts.createAssignment(errorRecord, ts.createObjectLiteral([
+                    ts.createPropertyAssignment("error", catchVariable)
+                ])))
+            ]), 1)), ts.createBlock([
+                ts.createTry(ts.createBlock([
+                    ts.setEmitFlags(ts.createIf(ts.createLogicalAnd(ts.createLogicalAnd(result, ts.createLogicalNot(getDone)), ts.createAssignment(returnMethod, ts.createPropertyAccess(iterator, "return"))), ts.createExpressionStatement(createDownlevelAwait(callReturn))), 1)
+                ]), undefined, ts.setEmitFlags(ts.createBlock([
+                    ts.setEmitFlags(ts.createIf(errorRecord, ts.createThrow(ts.createPropertyAccess(errorRecord, "error"))), 1)
+                ]), 1))
+            ]));
+        }
+        function visitParameter(node) {
+            if (node.transformFlags & 16384) {
+                return ts.updateParameter(node, undefined, undefined, node.dotDotDotToken, ts.getGeneratedNameForNode(node), undefined, undefined, ts.visitNode(node.initializer, visitor, ts.isExpression));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitConstructorDeclaration(node) {
+            var savedEnclosingFunctionFlags = enclosingFunctionFlags;
+            enclosingFunctionFlags = 0;
+            var updated = ts.updateConstructor(node, undefined, node.modifiers, ts.visitParameterList(node.parameters, visitor, context), transformFunctionBody(node));
+            enclosingFunctionFlags = savedEnclosingFunctionFlags;
+            return updated;
+        }
+        function visitGetAccessorDeclaration(node) {
+            var savedEnclosingFunctionFlags = enclosingFunctionFlags;
+            enclosingFunctionFlags = 0;
+            var updated = ts.updateGetAccessor(node, undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+            enclosingFunctionFlags = savedEnclosingFunctionFlags;
+            return updated;
+        }
+        function visitSetAccessorDeclaration(node) {
+            var savedEnclosingFunctionFlags = enclosingFunctionFlags;
+            enclosingFunctionFlags = 0;
+            var updated = ts.updateSetAccessor(node, undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), ts.visitParameterList(node.parameters, visitor, context), transformFunctionBody(node));
+            enclosingFunctionFlags = savedEnclosingFunctionFlags;
+            return updated;
+        }
+        function visitMethodDeclaration(node) {
+            var savedEnclosingFunctionFlags = enclosingFunctionFlags;
+            enclosingFunctionFlags = ts.getFunctionFlags(node);
+            var updated = ts.updateMethod(node, undefined, enclosingFunctionFlags & 1
+                ? ts.visitNodes(node.modifiers, visitorNoAsyncModifier, ts.isModifier)
+                : node.modifiers, enclosingFunctionFlags & 2
+                ? undefined
+                : node.asteriskToken, ts.visitNode(node.name, visitor, ts.isPropertyName), ts.visitNode(undefined, visitor, ts.isToken), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, enclosingFunctionFlags & 2 && enclosingFunctionFlags & 1
+                ? transformAsyncGeneratorFunctionBody(node)
+                : transformFunctionBody(node));
+            enclosingFunctionFlags = savedEnclosingFunctionFlags;
+            return updated;
+        }
+        function visitFunctionDeclaration(node) {
+            var savedEnclosingFunctionFlags = enclosingFunctionFlags;
+            enclosingFunctionFlags = ts.getFunctionFlags(node);
+            var updated = ts.updateFunctionDeclaration(node, undefined, enclosingFunctionFlags & 1
+                ? ts.visitNodes(node.modifiers, visitorNoAsyncModifier, ts.isModifier)
+                : node.modifiers, enclosingFunctionFlags & 2
+                ? undefined
+                : node.asteriskToken, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, enclosingFunctionFlags & 2 && enclosingFunctionFlags & 1
+                ? transformAsyncGeneratorFunctionBody(node)
+                : transformFunctionBody(node));
+            enclosingFunctionFlags = savedEnclosingFunctionFlags;
+            return updated;
+        }
+        function visitArrowFunction(node) {
+            var savedEnclosingFunctionFlags = enclosingFunctionFlags;
+            enclosingFunctionFlags = ts.getFunctionFlags(node);
+            var updated = ts.updateArrowFunction(node, node.modifiers, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, node.equalsGreaterThanToken, transformFunctionBody(node));
+            enclosingFunctionFlags = savedEnclosingFunctionFlags;
+            return updated;
+        }
+        function visitFunctionExpression(node) {
+            var savedEnclosingFunctionFlags = enclosingFunctionFlags;
+            enclosingFunctionFlags = ts.getFunctionFlags(node);
+            var updated = ts.updateFunctionExpression(node, enclosingFunctionFlags & 1
+                ? ts.visitNodes(node.modifiers, visitorNoAsyncModifier, ts.isModifier)
+                : node.modifiers, enclosingFunctionFlags & 2
+                ? undefined
+                : node.asteriskToken, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, enclosingFunctionFlags & 2 && enclosingFunctionFlags & 1
+                ? transformAsyncGeneratorFunctionBody(node)
+                : transformFunctionBody(node));
+            enclosingFunctionFlags = savedEnclosingFunctionFlags;
+            return updated;
+        }
+        function transformAsyncGeneratorFunctionBody(node) {
+            resumeLexicalEnvironment();
+            var statements = [];
+            var statementOffset = ts.addPrologue(statements, node.body.statements, false, visitor);
+            appendObjectRestAssignmentsIfNeeded(statements, node);
+            var savedCapturedSuperProperties = capturedSuperProperties;
+            var savedHasSuperElementAccess = hasSuperElementAccess;
+            capturedSuperProperties = ts.createUnderscoreEscapedMap();
+            hasSuperElementAccess = false;
+            var returnStatement = ts.createReturn(createAsyncGeneratorHelper(context, ts.createFunctionExpression(undefined, ts.createToken(41), node.name && ts.getGeneratedNameForNode(node.name), undefined, [], undefined, ts.updateBlock(node.body, ts.visitLexicalEnvironment(node.body.statements, visitor, context, statementOffset))), !!(hierarchyFacts & 1)));
+            var emitSuperHelpers = languageVersion >= 2 && resolver.getNodeCheckFlags(node) & (4096 | 2048);
+            if (emitSuperHelpers) {
+                enableSubstitutionForAsyncMethodsWithSuper();
+                var variableStatement = ts.createSuperAccessVariableStatement(resolver, node, capturedSuperProperties);
+                substitutedSuperAccessors[ts.getNodeId(variableStatement)] = true;
+                ts.insertStatementsAfterStandardPrologue(statements, [variableStatement]);
+            }
+            statements.push(returnStatement);
+            ts.insertStatementsAfterStandardPrologue(statements, endLexicalEnvironment());
+            var block = ts.updateBlock(node.body, statements);
+            if (emitSuperHelpers && hasSuperElementAccess) {
+                if (resolver.getNodeCheckFlags(node) & 4096) {
+                    ts.addEmitHelper(block, ts.advancedAsyncSuperHelper);
+                }
+                else if (resolver.getNodeCheckFlags(node) & 2048) {
+                    ts.addEmitHelper(block, ts.asyncSuperHelper);
+                }
+            }
+            capturedSuperProperties = savedCapturedSuperProperties;
+            hasSuperElementAccess = savedHasSuperElementAccess;
+            return block;
+        }
+        function transformFunctionBody(node) {
+            resumeLexicalEnvironment();
+            var statementOffset = 0;
+            var statements = [];
+            var body = ts.visitNode(node.body, visitor, ts.isConciseBody);
+            if (ts.isBlock(body)) {
+                statementOffset = ts.addPrologue(statements, body.statements, false, visitor);
+            }
+            ts.addRange(statements, appendObjectRestAssignmentsIfNeeded(undefined, node));
+            var leadingStatements = endLexicalEnvironment();
+            if (statementOffset > 0 || ts.some(statements) || ts.some(leadingStatements)) {
+                var block = ts.convertToFunctionBody(body, true);
+                ts.insertStatementsAfterStandardPrologue(statements, leadingStatements);
+                ts.addRange(statements, block.statements.slice(statementOffset));
+                return ts.updateBlock(block, ts.setTextRange(ts.createNodeArray(statements), block.statements));
+            }
+            return body;
+        }
+        function appendObjectRestAssignmentsIfNeeded(statements, node) {
+            for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+                var parameter = _a[_i];
+                if (parameter.transformFlags & 16384) {
+                    var temp = ts.getGeneratedNameForNode(parameter);
+                    var declarations = ts.flattenDestructuringBinding(parameter, visitor, context, 1, temp, false, true);
+                    if (ts.some(declarations)) {
+                        var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList(declarations));
+                        ts.setEmitFlags(statement, 1048576);
+                        statements = ts.append(statements, statement);
+                    }
+                }
+            }
+            return statements;
+        }
+        function enableSubstitutionForAsyncMethodsWithSuper() {
+            if ((enabledSubstitutions & 1) === 0) {
+                enabledSubstitutions |= 1;
+                context.enableSubstitution(196);
+                context.enableSubstitution(194);
+                context.enableSubstitution(195);
+                context.enableEmitNotification(245);
+                context.enableEmitNotification(161);
+                context.enableEmitNotification(163);
+                context.enableEmitNotification(164);
+                context.enableEmitNotification(162);
+                context.enableEmitNotification(225);
+            }
+        }
+        function onEmitNode(hint, node, emitCallback) {
+            if (enabledSubstitutions & 1 && isSuperContainer(node)) {
+                var superContainerFlags = resolver.getNodeCheckFlags(node) & (2048 | 4096);
+                if (superContainerFlags !== enclosingSuperContainerFlags) {
+                    var savedEnclosingSuperContainerFlags = enclosingSuperContainerFlags;
+                    enclosingSuperContainerFlags = superContainerFlags;
+                    previousOnEmitNode(hint, node, emitCallback);
+                    enclosingSuperContainerFlags = savedEnclosingSuperContainerFlags;
+                    return;
+                }
+            }
+            else if (enabledSubstitutions && substitutedSuperAccessors[ts.getNodeId(node)]) {
+                var savedEnclosingSuperContainerFlags = enclosingSuperContainerFlags;
+                enclosingSuperContainerFlags = 0;
+                previousOnEmitNode(hint, node, emitCallback);
+                enclosingSuperContainerFlags = savedEnclosingSuperContainerFlags;
+                return;
+            }
+            previousOnEmitNode(hint, node, emitCallback);
+        }
+        function onSubstituteNode(hint, node) {
+            node = previousOnSubstituteNode(hint, node);
+            if (hint === 1 && enclosingSuperContainerFlags) {
+                return substituteExpression(node);
+            }
+            return node;
+        }
+        function substituteExpression(node) {
+            switch (node.kind) {
+                case 194:
+                    return substitutePropertyAccessExpression(node);
+                case 195:
+                    return substituteElementAccessExpression(node);
+                case 196:
+                    return substituteCallExpression(node);
+            }
+            return node;
+        }
+        function substitutePropertyAccessExpression(node) {
+            if (node.expression.kind === 102) {
+                return ts.setTextRange(ts.createPropertyAccess(ts.createFileLevelUniqueName("_super"), node.name), node);
+            }
+            return node;
+        }
+        function substituteElementAccessExpression(node) {
+            if (node.expression.kind === 102) {
+                return createSuperElementAccessInAsyncMethod(node.argumentExpression, node);
+            }
+            return node;
+        }
+        function substituteCallExpression(node) {
+            var expression = node.expression;
+            if (ts.isSuperProperty(expression)) {
+                var argumentExpression = ts.isPropertyAccessExpression(expression)
+                    ? substitutePropertyAccessExpression(expression)
+                    : substituteElementAccessExpression(expression);
+                return ts.createCall(ts.createPropertyAccess(argumentExpression, "call"), undefined, __spreadArrays([
+                    ts.createThis()
+                ], node.arguments));
+            }
+            return node;
+        }
+        function isSuperContainer(node) {
+            var kind = node.kind;
+            return kind === 245
+                || kind === 162
+                || kind === 161
+                || kind === 163
+                || kind === 164;
+        }
+        function createSuperElementAccessInAsyncMethod(argumentExpression, location) {
+            if (enclosingSuperContainerFlags & 4096) {
+                return ts.setTextRange(ts.createPropertyAccess(ts.createCall(ts.createIdentifier("_superIndex"), undefined, [argumentExpression]), "value"), location);
+            }
+            else {
+                return ts.setTextRange(ts.createCall(ts.createIdentifier("_superIndex"), undefined, [argumentExpression]), location);
+            }
+        }
+    }
+    ts.transformES2018 = transformES2018;
+    ts.assignHelper = {
+        name: "typescript:assign",
+        importName: "__assign",
+        scoped: false,
+        priority: 1,
+        text: "\n            var __assign = (this && this.__assign) || function () {\n                __assign = Object.assign || function(t) {\n                    for (var s, i = 1, n = arguments.length; i < n; i++) {\n                        s = arguments[i];\n                        for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n                            t[p] = s[p];\n                    }\n                    return t;\n                };\n                return __assign.apply(this, arguments);\n            };"
+    };
+    function createAssignHelper(context, attributesSegments) {
+        if (context.getCompilerOptions().target >= 2) {
+            return ts.createCall(ts.createPropertyAccess(ts.createIdentifier("Object"), "assign"), undefined, attributesSegments);
+        }
+        context.requestEmitHelper(ts.assignHelper);
+        return ts.createCall(ts.getUnscopedHelperName("__assign"), undefined, attributesSegments);
+    }
+    ts.createAssignHelper = createAssignHelper;
+    ts.awaitHelper = {
+        name: "typescript:await",
+        importName: "__await",
+        scoped: false,
+        text: "\n            var __await = (this && this.__await) || function (v) { return this instanceof __await ? (this.v = v, this) : new __await(v); }"
+    };
+    function createAwaitHelper(context, expression) {
+        context.requestEmitHelper(ts.awaitHelper);
+        return ts.createCall(ts.getUnscopedHelperName("__await"), undefined, [expression]);
+    }
+    ts.asyncGeneratorHelper = {
+        name: "typescript:asyncGenerator",
+        importName: "__asyncGenerator",
+        scoped: false,
+        dependencies: [ts.awaitHelper],
+        text: "\n            var __asyncGenerator = (this && this.__asyncGenerator) || function (thisArg, _arguments, generator) {\n                if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\n                var g = generator.apply(thisArg, _arguments || []), i, q = [];\n                return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\n                function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\n                function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\n                function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\n                function fulfill(value) { resume(\"next\", value); }\n                function reject(value) { resume(\"throw\", value); }\n                function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\n            };"
+    };
+    function createAsyncGeneratorHelper(context, generatorFunc, hasLexicalThis) {
+        context.requestEmitHelper(ts.asyncGeneratorHelper);
+        (generatorFunc.emitNode || (generatorFunc.emitNode = {})).flags |= 262144 | 524288;
+        return ts.createCall(ts.getUnscopedHelperName("__asyncGenerator"), undefined, [
+            hasLexicalThis ? ts.createThis() : ts.createVoidZero(),
+            ts.createIdentifier("arguments"),
+            generatorFunc
+        ]);
+    }
+    ts.asyncDelegator = {
+        name: "typescript:asyncDelegator",
+        importName: "__asyncDelegator",
+        scoped: false,
+        dependencies: [ts.awaitHelper],
+        text: "\n            var __asyncDelegator = (this && this.__asyncDelegator) || function (o) {\n                var i, p;\n                return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\n                function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\n            };"
+    };
+    function createAsyncDelegatorHelper(context, expression, location) {
+        context.requestEmitHelper(ts.asyncDelegator);
+        return ts.setTextRange(ts.createCall(ts.getUnscopedHelperName("__asyncDelegator"), undefined, [expression]), location);
+    }
+    ts.asyncValues = {
+        name: "typescript:asyncValues",
+        importName: "__asyncValues",
+        scoped: false,
+        text: "\n            var __asyncValues = (this && this.__asyncValues) || function (o) {\n                if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\n                var m = o[Symbol.asyncIterator], i;\n                return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\n                function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\n                function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\n            };"
+    };
+    function createAsyncValuesHelper(context, expression, location) {
+        context.requestEmitHelper(ts.asyncValues);
+        return ts.setTextRange(ts.createCall(ts.getUnscopedHelperName("__asyncValues"), undefined, [expression]), location);
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformES2019(context) {
+        return ts.chainBundle(transformSourceFile);
+        function transformSourceFile(node) {
+            if (node.isDeclarationFile) {
+                return node;
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitor(node) {
+            if ((node.transformFlags & 16) === 0) {
+                return node;
+            }
+            switch (node.kind) {
+                case 280:
+                    return visitCatchClause(node);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function visitCatchClause(node) {
+            if (!node.variableDeclaration) {
+                return ts.updateCatchClause(node, ts.createVariableDeclaration(ts.createTempVariable(undefined)), ts.visitNode(node.block, visitor, ts.isBlock));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+    }
+    ts.transformES2019 = transformES2019;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformES2020(context) {
+        var hoistVariableDeclaration = context.hoistVariableDeclaration;
+        return ts.chainBundle(transformSourceFile);
+        function transformSourceFile(node) {
+            if (node.isDeclarationFile) {
+                return node;
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitor(node) {
+            if ((node.transformFlags & 8) === 0) {
+                return node;
+            }
+            switch (node.kind) {
+                case 194:
+                case 195:
+                case 196:
+                    if (node.flags & 32) {
+                        var updated = visitOptionalExpression(node, false, false);
+                        ts.Debug.assertNotNode(updated, ts.isSyntheticReference);
+                        return updated;
+                    }
+                    return ts.visitEachChild(node, visitor, context);
+                case 209:
+                    if (node.operatorToken.kind === 60) {
+                        return transformNullishCoalescingExpression(node);
+                    }
+                    return ts.visitEachChild(node, visitor, context);
+                case 203:
+                    return visitDeleteExpression(node);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function flattenChain(chain) {
+            ts.Debug.assertNotNode(chain, ts.isNonNullChain);
+            var links = [chain];
+            while (!chain.questionDotToken && !ts.isTaggedTemplateExpression(chain)) {
+                chain = ts.cast(ts.skipPartiallyEmittedExpressions(chain.expression), ts.isOptionalChain);
+                ts.Debug.assertNotNode(chain, ts.isNonNullChain);
+                links.unshift(chain);
+            }
+            return { expression: chain.expression, chain: links };
+        }
+        function visitNonOptionalParenthesizedExpression(node, captureThisArg, isDelete) {
+            var expression = visitNonOptionalExpression(node.expression, captureThisArg, isDelete);
+            if (ts.isSyntheticReference(expression)) {
+                return ts.createSyntheticReferenceExpression(ts.updateParen(node, expression.expression), expression.thisArg);
+            }
+            return ts.updateParen(node, expression);
+        }
+        function visitNonOptionalPropertyOrElementAccessExpression(node, captureThisArg, isDelete) {
+            if (ts.isOptionalChain(node)) {
+                return visitOptionalExpression(node, captureThisArg, isDelete);
+            }
+            var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+            ts.Debug.assertNotNode(expression, ts.isSyntheticReference);
+            var thisArg;
+            if (captureThisArg) {
+                if (shouldCaptureInTempVariable(expression)) {
+                    thisArg = ts.createTempVariable(hoistVariableDeclaration);
+                    expression = ts.createAssignment(thisArg, expression);
+                }
+                else {
+                    thisArg = expression;
+                }
+            }
+            expression = node.kind === 194
+                ? ts.updatePropertyAccess(node, expression, ts.visitNode(node.name, visitor, ts.isIdentifier))
+                : ts.updateElementAccess(node, expression, ts.visitNode(node.argumentExpression, visitor, ts.isExpression));
+            return thisArg ? ts.createSyntheticReferenceExpression(expression, thisArg) : expression;
+        }
+        function visitNonOptionalCallExpression(node, captureThisArg) {
+            if (ts.isOptionalChain(node)) {
+                return visitOptionalExpression(node, captureThisArg, false);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitNonOptionalExpression(node, captureThisArg, isDelete) {
+            switch (node.kind) {
+                case 200: return visitNonOptionalParenthesizedExpression(node, captureThisArg, isDelete);
+                case 194:
+                case 195: return visitNonOptionalPropertyOrElementAccessExpression(node, captureThisArg, isDelete);
+                case 196: return visitNonOptionalCallExpression(node, captureThisArg);
+                default: return ts.visitNode(node, visitor, ts.isExpression);
+            }
+        }
+        function visitOptionalExpression(node, captureThisArg, isDelete) {
+            var _a = flattenChain(node), expression = _a.expression, chain = _a.chain;
+            var left = visitNonOptionalExpression(expression, ts.isCallChain(chain[0]), false);
+            var leftThisArg = ts.isSyntheticReference(left) ? left.thisArg : undefined;
+            var leftExpression = ts.isSyntheticReference(left) ? left.expression : left;
+            var capturedLeft = leftExpression;
+            if (shouldCaptureInTempVariable(leftExpression)) {
+                capturedLeft = ts.createTempVariable(hoistVariableDeclaration);
+                leftExpression = ts.createAssignment(capturedLeft, leftExpression);
+            }
+            var rightExpression = capturedLeft;
+            var thisArg;
+            for (var i = 0; i < chain.length; i++) {
+                var segment = chain[i];
+                switch (segment.kind) {
+                    case 194:
+                    case 195:
+                        if (i === chain.length - 1 && captureThisArg) {
+                            if (shouldCaptureInTempVariable(rightExpression)) {
+                                thisArg = ts.createTempVariable(hoistVariableDeclaration);
+                                rightExpression = ts.createAssignment(thisArg, rightExpression);
+                            }
+                            else {
+                                thisArg = rightExpression;
+                            }
+                        }
+                        rightExpression = segment.kind === 194
+                            ? ts.createPropertyAccess(rightExpression, ts.visitNode(segment.name, visitor, ts.isIdentifier))
+                            : ts.createElementAccess(rightExpression, ts.visitNode(segment.argumentExpression, visitor, ts.isExpression));
+                        break;
+                    case 196:
+                        if (i === 0 && leftThisArg) {
+                            rightExpression = ts.createFunctionCall(rightExpression, leftThisArg.kind === 102 ? ts.createThis() : leftThisArg, ts.visitNodes(segment.arguments, visitor, ts.isExpression));
+                        }
+                        else {
+                            rightExpression = ts.createCall(rightExpression, undefined, ts.visitNodes(segment.arguments, visitor, ts.isExpression));
+                        }
+                        break;
+                }
+                ts.setOriginalNode(rightExpression, segment);
+            }
+            var target = isDelete
+                ? ts.createConditional(createNotNullCondition(leftExpression, capturedLeft, true), ts.createTrue(), ts.createDelete(rightExpression))
+                : ts.createConditional(createNotNullCondition(leftExpression, capturedLeft, true), ts.createVoidZero(), rightExpression);
+            return thisArg ? ts.createSyntheticReferenceExpression(target, thisArg) : target;
+        }
+        function createNotNullCondition(left, right, invert) {
+            return ts.createBinary(ts.createBinary(left, ts.createToken(invert ? 36 : 37), ts.createNull()), ts.createToken(invert ? 56 : 55), ts.createBinary(right, ts.createToken(invert ? 36 : 37), ts.createVoidZero()));
+        }
+        function transformNullishCoalescingExpression(node) {
+            var left = ts.visitNode(node.left, visitor, ts.isExpression);
+            var right = left;
+            if (shouldCaptureInTempVariable(left)) {
+                right = ts.createTempVariable(hoistVariableDeclaration);
+                left = ts.createAssignment(right, left);
+            }
+            return ts.createConditional(createNotNullCondition(left, right), right, ts.visitNode(node.right, visitor, ts.isExpression));
+        }
+        function shouldCaptureInTempVariable(expression) {
+            return !ts.isIdentifier(expression) &&
+                expression.kind !== 104 &&
+                expression.kind !== 102;
+        }
+        function visitDeleteExpression(node) {
+            return ts.isOptionalChain(ts.skipParentheses(node.expression))
+                ? ts.setOriginalNode(visitNonOptionalExpression(node.expression, false, true), node)
+                : ts.updateDelete(node, ts.visitNode(node.expression, visitor, ts.isExpression));
+        }
+    }
+    ts.transformES2020 = transformES2020;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformESNext(context) {
+        return ts.chainBundle(transformSourceFile);
+        function transformSourceFile(node) {
+            if (node.isDeclarationFile) {
+                return node;
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitor(node) {
+            if ((node.transformFlags & 4) === 0) {
+                return node;
+            }
+            switch (node.kind) {
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+    }
+    ts.transformESNext = transformESNext;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformJsx(context) {
+        var compilerOptions = context.getCompilerOptions();
+        var currentSourceFile;
+        return ts.chainBundle(transformSourceFile);
+        function transformSourceFile(node) {
+            if (node.isDeclarationFile) {
+                return node;
+            }
+            currentSourceFile = node;
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            return visited;
+        }
+        function visitor(node) {
+            if (node.transformFlags & 2) {
+                return visitorWorker(node);
+            }
+            else {
+                return node;
+            }
+        }
+        function visitorWorker(node) {
+            switch (node.kind) {
+                case 266:
+                    return visitJsxElement(node, false);
+                case 267:
+                    return visitJsxSelfClosingElement(node, false);
+                case 270:
+                    return visitJsxFragment(node, false);
+                case 276:
+                    return visitJsxExpression(node);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function transformJsxChildToExpression(node) {
+            switch (node.kind) {
+                case 11:
+                    return visitJsxText(node);
+                case 276:
+                    return visitJsxExpression(node);
+                case 266:
+                    return visitJsxElement(node, true);
+                case 267:
+                    return visitJsxSelfClosingElement(node, true);
+                case 270:
+                    return visitJsxFragment(node, true);
+                default:
+                    return ts.Debug.failBadSyntaxKind(node);
+            }
+        }
+        function visitJsxElement(node, isChild) {
+            return visitJsxOpeningLikeElement(node.openingElement, node.children, isChild, node);
+        }
+        function visitJsxSelfClosingElement(node, isChild) {
+            return visitJsxOpeningLikeElement(node, undefined, isChild, node);
+        }
+        function visitJsxFragment(node, isChild) {
+            return visitJsxOpeningFragment(node.openingFragment, node.children, isChild, node);
+        }
+        function visitJsxOpeningLikeElement(node, children, isChild, location) {
+            var tagName = getTagName(node);
+            var objectProperties;
+            var attrs = node.attributes.properties;
+            if (attrs.length === 0) {
+                objectProperties = ts.createNull();
+            }
+            else {
+                var segments = ts.flatten(ts.spanMap(attrs, ts.isJsxSpreadAttribute, function (attrs, isSpread) { return isSpread
+                    ? ts.map(attrs, transformJsxSpreadAttributeToExpression)
+                    : ts.createObjectLiteral(ts.map(attrs, transformJsxAttributeToObjectLiteralElement)); }));
+                if (ts.isJsxSpreadAttribute(attrs[0])) {
+                    segments.unshift(ts.createObjectLiteral());
+                }
+                objectProperties = ts.singleOrUndefined(segments);
+                if (!objectProperties) {
+                    objectProperties = ts.createAssignHelper(context, segments);
+                }
+            }
+            var element = ts.createExpressionForJsxElement(context.getEmitResolver().getJsxFactoryEntity(currentSourceFile), compilerOptions.reactNamespace, tagName, objectProperties, ts.mapDefined(children, transformJsxChildToExpression), node, location);
+            if (isChild) {
+                ts.startOnNewLine(element);
+            }
+            return element;
+        }
+        function visitJsxOpeningFragment(node, children, isChild, location) {
+            var element = ts.createExpressionForJsxFragment(context.getEmitResolver().getJsxFactoryEntity(currentSourceFile), compilerOptions.reactNamespace, ts.mapDefined(children, transformJsxChildToExpression), node, location);
+            if (isChild) {
+                ts.startOnNewLine(element);
+            }
+            return element;
+        }
+        function transformJsxSpreadAttributeToExpression(node) {
+            return ts.visitNode(node.expression, visitor, ts.isExpression);
+        }
+        function transformJsxAttributeToObjectLiteralElement(node) {
+            var name = getAttributeName(node);
+            var expression = transformJsxAttributeInitializer(node.initializer);
+            return ts.createPropertyAssignment(name, expression);
+        }
+        function transformJsxAttributeInitializer(node) {
+            if (node === undefined) {
+                return ts.createTrue();
+            }
+            else if (node.kind === 10) {
+                var literal = ts.createLiteral(tryDecodeEntities(node.text) || node.text);
+                literal.singleQuote = node.singleQuote !== undefined ? node.singleQuote : !ts.isStringDoubleQuoted(node, currentSourceFile);
+                return ts.setTextRange(literal, node);
+            }
+            else if (node.kind === 276) {
+                if (node.expression === undefined) {
+                    return ts.createTrue();
+                }
+                return visitJsxExpression(node);
+            }
+            else {
+                return ts.Debug.failBadSyntaxKind(node);
+            }
+        }
+        function visitJsxText(node) {
+            var fixed = fixupWhitespaceAndDecodeEntities(node.text);
+            return fixed === undefined ? undefined : ts.createLiteral(fixed);
+        }
+        function fixupWhitespaceAndDecodeEntities(text) {
+            var acc;
+            var firstNonWhitespace = 0;
+            var lastNonWhitespace = -1;
+            for (var i = 0; i < text.length; i++) {
+                var c = text.charCodeAt(i);
+                if (ts.isLineBreak(c)) {
+                    if (firstNonWhitespace !== -1 && lastNonWhitespace !== -1) {
+                        acc = addLineOfJsxText(acc, text.substr(firstNonWhitespace, lastNonWhitespace - firstNonWhitespace + 1));
+                    }
+                    firstNonWhitespace = -1;
+                }
+                else if (!ts.isWhiteSpaceSingleLine(c)) {
+                    lastNonWhitespace = i;
+                    if (firstNonWhitespace === -1) {
+                        firstNonWhitespace = i;
+                    }
+                }
+            }
+            return firstNonWhitespace !== -1
+                ? addLineOfJsxText(acc, text.substr(firstNonWhitespace))
+                : acc;
+        }
+        function addLineOfJsxText(acc, trimmedLine) {
+            var decoded = decodeEntities(trimmedLine);
+            return acc === undefined ? decoded : acc + " " + decoded;
+        }
+        function decodeEntities(text) {
+            return text.replace(/&((#((\d+)|x([\da-fA-F]+)))|(\w+));/g, function (match, _all, _number, _digits, decimal, hex, word) {
+                if (decimal) {
+                    return ts.utf16EncodeAsString(parseInt(decimal, 10));
+                }
+                else if (hex) {
+                    return ts.utf16EncodeAsString(parseInt(hex, 16));
+                }
+                else {
+                    var ch = entities.get(word);
+                    return ch ? ts.utf16EncodeAsString(ch) : match;
+                }
+            });
+        }
+        function tryDecodeEntities(text) {
+            var decoded = decodeEntities(text);
+            return decoded === text ? undefined : decoded;
+        }
+        function getTagName(node) {
+            if (node.kind === 266) {
+                return getTagName(node.openingElement);
+            }
+            else {
+                var name = node.tagName;
+                if (ts.isIdentifier(name) && ts.isIntrinsicJsxName(name.escapedText)) {
+                    return ts.createLiteral(ts.idText(name));
+                }
+                else {
+                    return ts.createExpressionFromEntityName(name);
+                }
+            }
+        }
+        function getAttributeName(node) {
+            var name = node.name;
+            var text = ts.idText(name);
+            if (/^[A-Za-z_]\w*$/.test(text)) {
+                return name;
+            }
+            else {
+                return ts.createLiteral(text);
+            }
+        }
+        function visitJsxExpression(node) {
+            return ts.visitNode(node.expression, visitor, ts.isExpression);
+        }
+    }
+    ts.transformJsx = transformJsx;
+    var entities = ts.createMapFromTemplate({
+        quot: 0x0022,
+        amp: 0x0026,
+        apos: 0x0027,
+        lt: 0x003C,
+        gt: 0x003E,
+        nbsp: 0x00A0,
+        iexcl: 0x00A1,
+        cent: 0x00A2,
+        pound: 0x00A3,
+        curren: 0x00A4,
+        yen: 0x00A5,
+        brvbar: 0x00A6,
+        sect: 0x00A7,
+        uml: 0x00A8,
+        copy: 0x00A9,
+        ordf: 0x00AA,
+        laquo: 0x00AB,
+        not: 0x00AC,
+        shy: 0x00AD,
+        reg: 0x00AE,
+        macr: 0x00AF,
+        deg: 0x00B0,
+        plusmn: 0x00B1,
+        sup2: 0x00B2,
+        sup3: 0x00B3,
+        acute: 0x00B4,
+        micro: 0x00B5,
+        para: 0x00B6,
+        middot: 0x00B7,
+        cedil: 0x00B8,
+        sup1: 0x00B9,
+        ordm: 0x00BA,
+        raquo: 0x00BB,
+        frac14: 0x00BC,
+        frac12: 0x00BD,
+        frac34: 0x00BE,
+        iquest: 0x00BF,
+        Agrave: 0x00C0,
+        Aacute: 0x00C1,
+        Acirc: 0x00C2,
+        Atilde: 0x00C3,
+        Auml: 0x00C4,
+        Aring: 0x00C5,
+        AElig: 0x00C6,
+        Ccedil: 0x00C7,
+        Egrave: 0x00C8,
+        Eacute: 0x00C9,
+        Ecirc: 0x00CA,
+        Euml: 0x00CB,
+        Igrave: 0x00CC,
+        Iacute: 0x00CD,
+        Icirc: 0x00CE,
+        Iuml: 0x00CF,
+        ETH: 0x00D0,
+        Ntilde: 0x00D1,
+        Ograve: 0x00D2,
+        Oacute: 0x00D3,
+        Ocirc: 0x00D4,
+        Otilde: 0x00D5,
+        Ouml: 0x00D6,
+        times: 0x00D7,
+        Oslash: 0x00D8,
+        Ugrave: 0x00D9,
+        Uacute: 0x00DA,
+        Ucirc: 0x00DB,
+        Uuml: 0x00DC,
+        Yacute: 0x00DD,
+        THORN: 0x00DE,
+        szlig: 0x00DF,
+        agrave: 0x00E0,
+        aacute: 0x00E1,
+        acirc: 0x00E2,
+        atilde: 0x00E3,
+        auml: 0x00E4,
+        aring: 0x00E5,
+        aelig: 0x00E6,
+        ccedil: 0x00E7,
+        egrave: 0x00E8,
+        eacute: 0x00E9,
+        ecirc: 0x00EA,
+        euml: 0x00EB,
+        igrave: 0x00EC,
+        iacute: 0x00ED,
+        icirc: 0x00EE,
+        iuml: 0x00EF,
+        eth: 0x00F0,
+        ntilde: 0x00F1,
+        ograve: 0x00F2,
+        oacute: 0x00F3,
+        ocirc: 0x00F4,
+        otilde: 0x00F5,
+        ouml: 0x00F6,
+        divide: 0x00F7,
+        oslash: 0x00F8,
+        ugrave: 0x00F9,
+        uacute: 0x00FA,
+        ucirc: 0x00FB,
+        uuml: 0x00FC,
+        yacute: 0x00FD,
+        thorn: 0x00FE,
+        yuml: 0x00FF,
+        OElig: 0x0152,
+        oelig: 0x0153,
+        Scaron: 0x0160,
+        scaron: 0x0161,
+        Yuml: 0x0178,
+        fnof: 0x0192,
+        circ: 0x02C6,
+        tilde: 0x02DC,
+        Alpha: 0x0391,
+        Beta: 0x0392,
+        Gamma: 0x0393,
+        Delta: 0x0394,
+        Epsilon: 0x0395,
+        Zeta: 0x0396,
+        Eta: 0x0397,
+        Theta: 0x0398,
+        Iota: 0x0399,
+        Kappa: 0x039A,
+        Lambda: 0x039B,
+        Mu: 0x039C,
+        Nu: 0x039D,
+        Xi: 0x039E,
+        Omicron: 0x039F,
+        Pi: 0x03A0,
+        Rho: 0x03A1,
+        Sigma: 0x03A3,
+        Tau: 0x03A4,
+        Upsilon: 0x03A5,
+        Phi: 0x03A6,
+        Chi: 0x03A7,
+        Psi: 0x03A8,
+        Omega: 0x03A9,
+        alpha: 0x03B1,
+        beta: 0x03B2,
+        gamma: 0x03B3,
+        delta: 0x03B4,
+        epsilon: 0x03B5,
+        zeta: 0x03B6,
+        eta: 0x03B7,
+        theta: 0x03B8,
+        iota: 0x03B9,
+        kappa: 0x03BA,
+        lambda: 0x03BB,
+        mu: 0x03BC,
+        nu: 0x03BD,
+        xi: 0x03BE,
+        omicron: 0x03BF,
+        pi: 0x03C0,
+        rho: 0x03C1,
+        sigmaf: 0x03C2,
+        sigma: 0x03C3,
+        tau: 0x03C4,
+        upsilon: 0x03C5,
+        phi: 0x03C6,
+        chi: 0x03C7,
+        psi: 0x03C8,
+        omega: 0x03C9,
+        thetasym: 0x03D1,
+        upsih: 0x03D2,
+        piv: 0x03D6,
+        ensp: 0x2002,
+        emsp: 0x2003,
+        thinsp: 0x2009,
+        zwnj: 0x200C,
+        zwj: 0x200D,
+        lrm: 0x200E,
+        rlm: 0x200F,
+        ndash: 0x2013,
+        mdash: 0x2014,
+        lsquo: 0x2018,
+        rsquo: 0x2019,
+        sbquo: 0x201A,
+        ldquo: 0x201C,
+        rdquo: 0x201D,
+        bdquo: 0x201E,
+        dagger: 0x2020,
+        Dagger: 0x2021,
+        bull: 0x2022,
+        hellip: 0x2026,
+        permil: 0x2030,
+        prime: 0x2032,
+        Prime: 0x2033,
+        lsaquo: 0x2039,
+        rsaquo: 0x203A,
+        oline: 0x203E,
+        frasl: 0x2044,
+        euro: 0x20AC,
+        image: 0x2111,
+        weierp: 0x2118,
+        real: 0x211C,
+        trade: 0x2122,
+        alefsym: 0x2135,
+        larr: 0x2190,
+        uarr: 0x2191,
+        rarr: 0x2192,
+        darr: 0x2193,
+        harr: 0x2194,
+        crarr: 0x21B5,
+        lArr: 0x21D0,
+        uArr: 0x21D1,
+        rArr: 0x21D2,
+        dArr: 0x21D3,
+        hArr: 0x21D4,
+        forall: 0x2200,
+        part: 0x2202,
+        exist: 0x2203,
+        empty: 0x2205,
+        nabla: 0x2207,
+        isin: 0x2208,
+        notin: 0x2209,
+        ni: 0x220B,
+        prod: 0x220F,
+        sum: 0x2211,
+        minus: 0x2212,
+        lowast: 0x2217,
+        radic: 0x221A,
+        prop: 0x221D,
+        infin: 0x221E,
+        ang: 0x2220,
+        and: 0x2227,
+        or: 0x2228,
+        cap: 0x2229,
+        cup: 0x222A,
+        int: 0x222B,
+        there4: 0x2234,
+        sim: 0x223C,
+        cong: 0x2245,
+        asymp: 0x2248,
+        ne: 0x2260,
+        equiv: 0x2261,
+        le: 0x2264,
+        ge: 0x2265,
+        sub: 0x2282,
+        sup: 0x2283,
+        nsub: 0x2284,
+        sube: 0x2286,
+        supe: 0x2287,
+        oplus: 0x2295,
+        otimes: 0x2297,
+        perp: 0x22A5,
+        sdot: 0x22C5,
+        lceil: 0x2308,
+        rceil: 0x2309,
+        lfloor: 0x230A,
+        rfloor: 0x230B,
+        lang: 0x2329,
+        rang: 0x232A,
+        loz: 0x25CA,
+        spades: 0x2660,
+        clubs: 0x2663,
+        hearts: 0x2665,
+        diams: 0x2666
+    });
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformES2016(context) {
+        var hoistVariableDeclaration = context.hoistVariableDeclaration;
+        return ts.chainBundle(transformSourceFile);
+        function transformSourceFile(node) {
+            if (node.isDeclarationFile) {
+                return node;
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitor(node) {
+            if ((node.transformFlags & 128) === 0) {
+                return node;
+            }
+            switch (node.kind) {
+                case 209:
+                    return visitBinaryExpression(node);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function visitBinaryExpression(node) {
+            switch (node.operatorToken.kind) {
+                case 66:
+                    return visitExponentiationAssignmentExpression(node);
+                case 42:
+                    return visitExponentiationExpression(node);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function visitExponentiationAssignmentExpression(node) {
+            var target;
+            var value;
+            var left = ts.visitNode(node.left, visitor, ts.isExpression);
+            var right = ts.visitNode(node.right, visitor, ts.isExpression);
+            if (ts.isElementAccessExpression(left)) {
+                var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                var argumentExpressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                target = ts.setTextRange(ts.createElementAccess(ts.setTextRange(ts.createAssignment(expressionTemp, left.expression), left.expression), ts.setTextRange(ts.createAssignment(argumentExpressionTemp, left.argumentExpression), left.argumentExpression)), left);
+                value = ts.setTextRange(ts.createElementAccess(expressionTemp, argumentExpressionTemp), left);
+            }
+            else if (ts.isPropertyAccessExpression(left)) {
+                var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                target = ts.setTextRange(ts.createPropertyAccess(ts.setTextRange(ts.createAssignment(expressionTemp, left.expression), left.expression), left.name), left);
+                value = ts.setTextRange(ts.createPropertyAccess(expressionTemp, left.name), left);
+            }
+            else {
+                target = left;
+                value = left;
+            }
+            return ts.setTextRange(ts.createAssignment(target, ts.createMathPow(value, right, node)), node);
+        }
+        function visitExponentiationExpression(node) {
+            var left = ts.visitNode(node.left, visitor, ts.isExpression);
+            var right = ts.visitNode(node.right, visitor, ts.isExpression);
+            return ts.createMathPow(left, right, node);
+        }
+    }
+    ts.transformES2016 = transformES2016;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformES2015(context) {
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var compilerOptions = context.getCompilerOptions();
+        var resolver = context.getEmitResolver();
+        var previousOnSubstituteNode = context.onSubstituteNode;
+        var previousOnEmitNode = context.onEmitNode;
+        context.onEmitNode = onEmitNode;
+        context.onSubstituteNode = onSubstituteNode;
+        var currentSourceFile;
+        var currentText;
+        var hierarchyFacts;
+        var taggedTemplateStringDeclarations;
+        function recordTaggedTemplateString(temp) {
+            taggedTemplateStringDeclarations = ts.append(taggedTemplateStringDeclarations, ts.createVariableDeclaration(temp));
+        }
+        var convertedLoopState;
+        var enabledSubstitutions;
+        return ts.chainBundle(transformSourceFile);
+        function transformSourceFile(node) {
+            if (node.isDeclarationFile) {
+                return node;
+            }
+            currentSourceFile = node;
+            currentText = node.text;
+            var visited = visitSourceFile(node);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            currentText = undefined;
+            taggedTemplateStringDeclarations = undefined;
+            hierarchyFacts = 0;
+            return visited;
+        }
+        function enterSubtree(excludeFacts, includeFacts) {
+            var ancestorFacts = hierarchyFacts;
+            hierarchyFacts = (hierarchyFacts & ~excludeFacts | includeFacts) & 16383;
+            return ancestorFacts;
+        }
+        function exitSubtree(ancestorFacts, excludeFacts, includeFacts) {
+            hierarchyFacts = (hierarchyFacts & ~excludeFacts | includeFacts) & -16384 | ancestorFacts;
+        }
+        function isReturnVoidStatementInConstructorWithCapturedSuper(node) {
+            return (hierarchyFacts & 8192) !== 0
+                && node.kind === 235
+                && !node.expression;
+        }
+        function shouldVisitNode(node) {
+            return (node.transformFlags & 256) !== 0
+                || convertedLoopState !== undefined
+                || (hierarchyFacts & 8192 && (ts.isStatement(node) || (node.kind === 223)))
+                || (ts.isIterationStatement(node, false) && shouldConvertIterationStatement(node))
+                || (ts.getEmitFlags(node) & 33554432) !== 0;
+        }
+        function visitor(node) {
+            if (shouldVisitNode(node)) {
+                return visitJavaScript(node);
+            }
+            else {
+                return node;
+            }
+        }
+        function callExpressionVisitor(node) {
+            if (node.kind === 102) {
+                return visitSuperKeyword(true);
+            }
+            return visitor(node);
+        }
+        function visitJavaScript(node) {
+            switch (node.kind) {
+                case 120:
+                    return undefined;
+                case 245:
+                    return visitClassDeclaration(node);
+                case 214:
+                    return visitClassExpression(node);
+                case 156:
+                    return visitParameter(node);
+                case 244:
+                    return visitFunctionDeclaration(node);
+                case 202:
+                    return visitArrowFunction(node);
+                case 201:
+                    return visitFunctionExpression(node);
+                case 242:
+                    return visitVariableDeclaration(node);
+                case 75:
+                    return visitIdentifier(node);
+                case 243:
+                    return visitVariableDeclarationList(node);
+                case 237:
+                    return visitSwitchStatement(node);
+                case 251:
+                    return visitCaseBlock(node);
+                case 223:
+                    return visitBlock(node, false);
+                case 234:
+                case 233:
+                    return visitBreakOrContinueStatement(node);
+                case 238:
+                    return visitLabeledStatement(node);
+                case 228:
+                case 229:
+                    return visitDoOrWhileStatement(node, undefined);
+                case 230:
+                    return visitForStatement(node, undefined);
+                case 231:
+                    return visitForInStatement(node, undefined);
+                case 232:
+                    return visitForOfStatement(node, undefined);
+                case 226:
+                    return visitExpressionStatement(node);
+                case 193:
+                    return visitObjectLiteralExpression(node);
+                case 280:
+                    return visitCatchClause(node);
+                case 282:
+                    return visitShorthandPropertyAssignment(node);
+                case 154:
+                    return visitComputedPropertyName(node);
+                case 192:
+                    return visitArrayLiteralExpression(node);
+                case 196:
+                    return visitCallExpression(node);
+                case 197:
+                    return visitNewExpression(node);
+                case 200:
+                    return visitParenthesizedExpression(node, true);
+                case 209:
+                    return visitBinaryExpression(node, true);
+                case 14:
+                case 15:
+                case 16:
+                case 17:
+                    return visitTemplateLiteral(node);
+                case 10:
+                    return visitStringLiteral(node);
+                case 8:
+                    return visitNumericLiteral(node);
+                case 198:
+                    return visitTaggedTemplateExpression(node);
+                case 211:
+                    return visitTemplateExpression(node);
+                case 212:
+                    return visitYieldExpression(node);
+                case 213:
+                    return visitSpreadElement(node);
+                case 102:
+                    return visitSuperKeyword(false);
+                case 104:
+                    return visitThisKeyword(node);
+                case 219:
+                    return visitMetaProperty(node);
+                case 161:
+                    return visitMethodDeclaration(node);
+                case 163:
+                case 164:
+                    return visitAccessorDeclaration(node);
+                case 225:
+                    return visitVariableStatement(node);
+                case 235:
+                    return visitReturnStatement(node);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function visitSourceFile(node) {
+            var ancestorFacts = enterSubtree(8064, 64);
+            var prologue = [];
+            var statements = [];
+            startLexicalEnvironment();
+            var statementOffset = ts.addStandardPrologue(prologue, node.statements, false);
+            statementOffset = ts.addCustomPrologue(prologue, node.statements, statementOffset, visitor);
+            ts.addRange(statements, ts.visitNodes(node.statements, visitor, ts.isStatement, statementOffset));
+            if (taggedTemplateStringDeclarations) {
+                statements.push(ts.createVariableStatement(undefined, ts.createVariableDeclarationList(taggedTemplateStringDeclarations)));
+            }
+            ts.mergeLexicalEnvironment(prologue, endLexicalEnvironment());
+            insertCaptureThisForNodeIfNeeded(prologue, node);
+            exitSubtree(ancestorFacts, 0, 0);
+            return ts.updateSourceFileNode(node, ts.setTextRange(ts.createNodeArray(ts.concatenate(prologue, statements)), node.statements));
+        }
+        function visitSwitchStatement(node) {
+            if (convertedLoopState !== undefined) {
+                var savedAllowedNonLabeledJumps = convertedLoopState.allowedNonLabeledJumps;
+                convertedLoopState.allowedNonLabeledJumps |= 2;
+                var result = ts.visitEachChild(node, visitor, context);
+                convertedLoopState.allowedNonLabeledJumps = savedAllowedNonLabeledJumps;
+                return result;
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitCaseBlock(node) {
+            var ancestorFacts = enterSubtree(7104, 0);
+            var updated = ts.visitEachChild(node, visitor, context);
+            exitSubtree(ancestorFacts, 0, 0);
+            return updated;
+        }
+        function returnCapturedThis(node) {
+            return ts.setOriginalNode(ts.createReturn(ts.createFileLevelUniqueName("_this")), node);
+        }
+        function visitReturnStatement(node) {
+            if (convertedLoopState) {
+                convertedLoopState.nonLocalJumps |= 8;
+                if (isReturnVoidStatementInConstructorWithCapturedSuper(node)) {
+                    node = returnCapturedThis(node);
+                }
+                return ts.createReturn(ts.createObjectLiteral([
+                    ts.createPropertyAssignment(ts.createIdentifier("value"), node.expression
+                        ? ts.visitNode(node.expression, visitor, ts.isExpression)
+                        : ts.createVoidZero())
+                ]));
+            }
+            else if (isReturnVoidStatementInConstructorWithCapturedSuper(node)) {
+                return returnCapturedThis(node);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitThisKeyword(node) {
+            if (hierarchyFacts & 2) {
+                hierarchyFacts |= 32768;
+            }
+            if (convertedLoopState) {
+                if (hierarchyFacts & 2) {
+                    convertedLoopState.containsLexicalThis = true;
+                    return node;
+                }
+                return convertedLoopState.thisName || (convertedLoopState.thisName = ts.createUniqueName("this"));
+            }
+            return node;
+        }
+        function visitIdentifier(node) {
+            if (!convertedLoopState) {
+                return node;
+            }
+            if (ts.isGeneratedIdentifier(node)) {
+                return node;
+            }
+            if (node.escapedText !== "arguments" || !resolver.isArgumentsLocalBinding(node)) {
+                return node;
+            }
+            return convertedLoopState.argumentsName || (convertedLoopState.argumentsName = ts.createUniqueName("arguments"));
+        }
+        function visitBreakOrContinueStatement(node) {
+            if (convertedLoopState) {
+                var jump = node.kind === 234 ? 2 : 4;
+                var canUseBreakOrContinue = (node.label && convertedLoopState.labels && convertedLoopState.labels.get(ts.idText(node.label))) ||
+                    (!node.label && (convertedLoopState.allowedNonLabeledJumps & jump));
+                if (!canUseBreakOrContinue) {
+                    var labelMarker = void 0;
+                    var label = node.label;
+                    if (!label) {
+                        if (node.kind === 234) {
+                            convertedLoopState.nonLocalJumps |= 2;
+                            labelMarker = "break";
+                        }
+                        else {
+                            convertedLoopState.nonLocalJumps |= 4;
+                            labelMarker = "continue";
+                        }
+                    }
+                    else {
+                        if (node.kind === 234) {
+                            labelMarker = "break-" + label.escapedText;
+                            setLabeledJump(convertedLoopState, true, ts.idText(label), labelMarker);
+                        }
+                        else {
+                            labelMarker = "continue-" + label.escapedText;
+                            setLabeledJump(convertedLoopState, false, ts.idText(label), labelMarker);
+                        }
+                    }
+                    var returnExpression = ts.createLiteral(labelMarker);
+                    if (convertedLoopState.loopOutParameters.length) {
+                        var outParams = convertedLoopState.loopOutParameters;
+                        var expr = void 0;
+                        for (var i = 0; i < outParams.length; i++) {
+                            var copyExpr = copyOutParameter(outParams[i], 1);
+                            if (i === 0) {
+                                expr = copyExpr;
+                            }
+                            else {
+                                expr = ts.createBinary(expr, 27, copyExpr);
+                            }
+                        }
+                        returnExpression = ts.createBinary(expr, 27, returnExpression);
+                    }
+                    return ts.createReturn(returnExpression);
+                }
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitClassDeclaration(node) {
+            var variable = ts.createVariableDeclaration(ts.getLocalName(node, true), undefined, transformClassLikeDeclarationToExpression(node));
+            ts.setOriginalNode(variable, node);
+            var statements = [];
+            var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList([variable]));
+            ts.setOriginalNode(statement, node);
+            ts.setTextRange(statement, node);
+            ts.startOnNewLine(statement);
+            statements.push(statement);
+            if (ts.hasModifier(node, 1)) {
+                var exportStatement = ts.hasModifier(node, 512)
+                    ? ts.createExportDefault(ts.getLocalName(node))
+                    : ts.createExternalModuleExport(ts.getLocalName(node));
+                ts.setOriginalNode(exportStatement, statement);
+                statements.push(exportStatement);
+            }
+            var emitFlags = ts.getEmitFlags(node);
+            if ((emitFlags & 4194304) === 0) {
+                statements.push(ts.createEndOfDeclarationMarker(node));
+                ts.setEmitFlags(statement, emitFlags | 4194304);
+            }
+            return ts.singleOrMany(statements);
+        }
+        function visitClassExpression(node) {
+            return transformClassLikeDeclarationToExpression(node);
+        }
+        function transformClassLikeDeclarationToExpression(node) {
+            if (node.name) {
+                enableSubstitutionsForBlockScopedBindings();
+            }
+            var extendsClauseElement = ts.getClassExtendsHeritageElement(node);
+            var classFunction = ts.createFunctionExpression(undefined, undefined, undefined, undefined, extendsClauseElement ? [ts.createParameter(undefined, undefined, undefined, ts.createFileLevelUniqueName("_super"))] : [], undefined, transformClassBody(node, extendsClauseElement));
+            ts.setEmitFlags(classFunction, (ts.getEmitFlags(node) & 65536) | 524288);
+            var inner = ts.createPartiallyEmittedExpression(classFunction);
+            inner.end = node.end;
+            ts.setEmitFlags(inner, 1536);
+            var outer = ts.createPartiallyEmittedExpression(inner);
+            outer.end = ts.skipTrivia(currentText, node.pos);
+            ts.setEmitFlags(outer, 1536);
+            var result = ts.createParen(ts.createCall(outer, undefined, extendsClauseElement
+                ? [ts.visitNode(extendsClauseElement.expression, visitor, ts.isExpression)]
+                : []));
+            ts.addSyntheticLeadingComment(result, 3, "* @class ");
+            return result;
+        }
+        function transformClassBody(node, extendsClauseElement) {
+            var statements = [];
+            startLexicalEnvironment();
+            addExtendsHelperIfNeeded(statements, node, extendsClauseElement);
+            addConstructor(statements, node, extendsClauseElement);
+            addClassMembers(statements, node);
+            var closingBraceLocation = ts.createTokenRange(ts.skipTrivia(currentText, node.members.end), 19);
+            var localName = ts.getInternalName(node);
+            var outer = ts.createPartiallyEmittedExpression(localName);
+            outer.end = closingBraceLocation.end;
+            ts.setEmitFlags(outer, 1536);
+            var statement = ts.createReturn(outer);
+            statement.pos = closingBraceLocation.pos;
+            ts.setEmitFlags(statement, 1536 | 384);
+            statements.push(statement);
+            ts.insertStatementsAfterStandardPrologue(statements, endLexicalEnvironment());
+            var block = ts.createBlock(ts.setTextRange(ts.createNodeArray(statements), node.members), true);
+            ts.setEmitFlags(block, 1536);
+            return block;
+        }
+        function addExtendsHelperIfNeeded(statements, node, extendsClauseElement) {
+            if (extendsClauseElement) {
+                statements.push(ts.setTextRange(ts.createExpressionStatement(createExtendsHelper(context, ts.getInternalName(node))), extendsClauseElement));
+            }
+        }
+        function addConstructor(statements, node, extendsClauseElement) {
+            var savedConvertedLoopState = convertedLoopState;
+            convertedLoopState = undefined;
+            var ancestorFacts = enterSubtree(16278, 73);
+            var constructor = ts.getFirstConstructorWithBody(node);
+            var hasSynthesizedSuper = hasSynthesizedDefaultSuperCall(constructor, extendsClauseElement !== undefined);
+            var constructorFunction = ts.createFunctionDeclaration(undefined, undefined, undefined, ts.getInternalName(node), undefined, transformConstructorParameters(constructor, hasSynthesizedSuper), undefined, transformConstructorBody(constructor, node, extendsClauseElement, hasSynthesizedSuper));
+            ts.setTextRange(constructorFunction, constructor || node);
+            if (extendsClauseElement) {
+                ts.setEmitFlags(constructorFunction, 8);
+            }
+            statements.push(constructorFunction);
+            exitSubtree(ancestorFacts, 49152, 0);
+            convertedLoopState = savedConvertedLoopState;
+        }
+        function transformConstructorParameters(constructor, hasSynthesizedSuper) {
+            return ts.visitParameterList(constructor && !hasSynthesizedSuper ? constructor.parameters : undefined, visitor, context)
+                || [];
+        }
+        function createDefaultConstructorBody(node, isDerivedClass) {
+            var statements = [];
+            resumeLexicalEnvironment();
+            ts.mergeLexicalEnvironment(statements, endLexicalEnvironment());
+            if (isDerivedClass) {
+                statements.push(ts.createReturn(createDefaultSuperCallOrThis()));
+            }
+            var statementsArray = ts.createNodeArray(statements);
+            ts.setTextRange(statementsArray, node.members);
+            var block = ts.createBlock(statementsArray, true);
+            ts.setTextRange(block, node);
+            ts.setEmitFlags(block, 1536);
+            return block;
+        }
+        function transformConstructorBody(constructor, node, extendsClauseElement, hasSynthesizedSuper) {
+            var isDerivedClass = !!extendsClauseElement && ts.skipOuterExpressions(extendsClauseElement.expression).kind !== 100;
+            if (!constructor)
+                return createDefaultConstructorBody(node, isDerivedClass);
+            var prologue = [];
+            var statements = [];
+            resumeLexicalEnvironment();
+            var statementOffset = 0;
+            if (!hasSynthesizedSuper)
+                statementOffset = ts.addStandardPrologue(prologue, constructor.body.statements, false);
+            addDefaultValueAssignmentsIfNeeded(statements, constructor);
+            addRestParameterIfNeeded(statements, constructor, hasSynthesizedSuper);
+            if (!hasSynthesizedSuper)
+                statementOffset = ts.addCustomPrologue(statements, constructor.body.statements, statementOffset, visitor);
+            var superCallExpression;
+            if (hasSynthesizedSuper) {
+                superCallExpression = createDefaultSuperCallOrThis();
+            }
+            else if (isDerivedClass && statementOffset < constructor.body.statements.length) {
+                var firstStatement = constructor.body.statements[statementOffset];
+                if (ts.isExpressionStatement(firstStatement) && ts.isSuperCall(firstStatement.expression)) {
+                    superCallExpression = visitImmediateSuperCallInBody(firstStatement.expression);
+                }
+            }
+            if (superCallExpression) {
+                hierarchyFacts |= 8192;
+                statementOffset++;
+            }
+            ts.addRange(statements, ts.visitNodes(constructor.body.statements, visitor, ts.isStatement, statementOffset));
+            ts.mergeLexicalEnvironment(prologue, endLexicalEnvironment());
+            insertCaptureNewTargetIfNeeded(prologue, constructor, false);
+            if (isDerivedClass) {
+                if (superCallExpression && statementOffset === constructor.body.statements.length && !(constructor.body.transformFlags & 4096)) {
+                    var superCall = ts.cast(ts.cast(superCallExpression, ts.isBinaryExpression).left, ts.isCallExpression);
+                    var returnStatement = ts.createReturn(superCallExpression);
+                    ts.setCommentRange(returnStatement, ts.getCommentRange(superCall));
+                    ts.setEmitFlags(superCall, 1536);
+                    statements.push(returnStatement);
+                }
+                else {
+                    insertCaptureThisForNode(statements, constructor, superCallExpression || createActualThis());
+                    if (!isSufficientlyCoveredByReturnStatements(constructor.body)) {
+                        statements.push(ts.createReturn(ts.createFileLevelUniqueName("_this")));
+                    }
+                }
+            }
+            else {
+                insertCaptureThisForNodeIfNeeded(prologue, constructor);
+            }
+            var block = ts.createBlock(ts.setTextRange(ts.createNodeArray(ts.concatenate(prologue, statements)), constructor.body.statements), true);
+            ts.setTextRange(block, constructor.body);
+            return block;
+        }
+        function isSufficientlyCoveredByReturnStatements(statement) {
+            if (statement.kind === 235) {
+                return true;
+            }
+            else if (statement.kind === 227) {
+                var ifStatement = statement;
+                if (ifStatement.elseStatement) {
+                    return isSufficientlyCoveredByReturnStatements(ifStatement.thenStatement) &&
+                        isSufficientlyCoveredByReturnStatements(ifStatement.elseStatement);
+                }
+            }
+            else if (statement.kind === 223) {
+                var lastStatement = ts.lastOrUndefined(statement.statements);
+                if (lastStatement && isSufficientlyCoveredByReturnStatements(lastStatement)) {
+                    return true;
+                }
+            }
+            return false;
+        }
+        function createActualThis() {
+            return ts.setEmitFlags(ts.createThis(), 4);
+        }
+        function createDefaultSuperCallOrThis() {
+            return ts.createLogicalOr(ts.createLogicalAnd(ts.createStrictInequality(ts.createFileLevelUniqueName("_super"), ts.createNull()), ts.createFunctionApply(ts.createFileLevelUniqueName("_super"), createActualThis(), ts.createIdentifier("arguments"))), createActualThis());
+        }
+        function visitParameter(node) {
+            if (node.dotDotDotToken) {
+                return undefined;
+            }
+            else if (ts.isBindingPattern(node.name)) {
+                return ts.setOriginalNode(ts.setTextRange(ts.createParameter(undefined, undefined, undefined, ts.getGeneratedNameForNode(node), undefined, undefined, undefined), node), node);
+            }
+            else if (node.initializer) {
+                return ts.setOriginalNode(ts.setTextRange(ts.createParameter(undefined, undefined, undefined, node.name, undefined, undefined, undefined), node), node);
+            }
+            else {
+                return node;
+            }
+        }
+        function hasDefaultValueOrBindingPattern(node) {
+            return node.initializer !== undefined
+                || ts.isBindingPattern(node.name);
+        }
+        function addDefaultValueAssignmentsIfNeeded(statements, node) {
+            if (!ts.some(node.parameters, hasDefaultValueOrBindingPattern)) {
+                return false;
+            }
+            var added = false;
+            for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+                var parameter = _a[_i];
+                var name = parameter.name, initializer = parameter.initializer, dotDotDotToken = parameter.dotDotDotToken;
+                if (dotDotDotToken) {
+                    continue;
+                }
+                if (ts.isBindingPattern(name)) {
+                    added = insertDefaultValueAssignmentForBindingPattern(statements, parameter, name, initializer) || added;
+                }
+                else if (initializer) {
+                    insertDefaultValueAssignmentForInitializer(statements, parameter, name, initializer);
+                    added = true;
+                }
+            }
+            return added;
+        }
+        function insertDefaultValueAssignmentForBindingPattern(statements, parameter, name, initializer) {
+            if (name.elements.length > 0) {
+                ts.insertStatementAfterCustomPrologue(statements, ts.setEmitFlags(ts.createVariableStatement(undefined, ts.createVariableDeclarationList(ts.flattenDestructuringBinding(parameter, visitor, context, 0, ts.getGeneratedNameForNode(parameter)))), 1048576));
+                return true;
+            }
+            else if (initializer) {
+                ts.insertStatementAfterCustomPrologue(statements, ts.setEmitFlags(ts.createExpressionStatement(ts.createAssignment(ts.getGeneratedNameForNode(parameter), ts.visitNode(initializer, visitor, ts.isExpression))), 1048576));
+                return true;
+            }
+            return false;
+        }
+        function insertDefaultValueAssignmentForInitializer(statements, parameter, name, initializer) {
+            initializer = ts.visitNode(initializer, visitor, ts.isExpression);
+            var statement = ts.createIf(ts.createTypeCheck(ts.getSynthesizedClone(name), "undefined"), ts.setEmitFlags(ts.setTextRange(ts.createBlock([
+                ts.createExpressionStatement(ts.setEmitFlags(ts.setTextRange(ts.createAssignment(ts.setEmitFlags(ts.getMutableClone(name), 48), ts.setEmitFlags(initializer, 48 | ts.getEmitFlags(initializer) | 1536)), parameter), 1536))
+            ]), parameter), 1 | 32 | 384 | 1536));
+            ts.startOnNewLine(statement);
+            ts.setTextRange(statement, parameter);
+            ts.setEmitFlags(statement, 384 | 32 | 1048576 | 1536);
+            ts.insertStatementAfterCustomPrologue(statements, statement);
+        }
+        function shouldAddRestParameter(node, inConstructorWithSynthesizedSuper) {
+            return !!(node && node.dotDotDotToken && !inConstructorWithSynthesizedSuper);
+        }
+        function addRestParameterIfNeeded(statements, node, inConstructorWithSynthesizedSuper) {
+            var prologueStatements = [];
+            var parameter = ts.lastOrUndefined(node.parameters);
+            if (!shouldAddRestParameter(parameter, inConstructorWithSynthesizedSuper)) {
+                return false;
+            }
+            var declarationName = parameter.name.kind === 75 ? ts.getMutableClone(parameter.name) : ts.createTempVariable(undefined);
+            ts.setEmitFlags(declarationName, 48);
+            var expressionName = parameter.name.kind === 75 ? ts.getSynthesizedClone(parameter.name) : declarationName;
+            var restIndex = node.parameters.length - 1;
+            var temp = ts.createLoopVariable();
+            prologueStatements.push(ts.setEmitFlags(ts.setTextRange(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(declarationName, undefined, ts.createArrayLiteral([]))
+            ])), parameter), 1048576));
+            var forStatement = ts.createFor(ts.setTextRange(ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(temp, undefined, ts.createLiteral(restIndex))
+            ]), parameter), ts.setTextRange(ts.createLessThan(temp, ts.createPropertyAccess(ts.createIdentifier("arguments"), "length")), parameter), ts.setTextRange(ts.createPostfixIncrement(temp), parameter), ts.createBlock([
+                ts.startOnNewLine(ts.setTextRange(ts.createExpressionStatement(ts.createAssignment(ts.createElementAccess(expressionName, restIndex === 0
+                    ? temp
+                    : ts.createSubtract(temp, ts.createLiteral(restIndex))), ts.createElementAccess(ts.createIdentifier("arguments"), temp))), parameter))
+            ]));
+            ts.setEmitFlags(forStatement, 1048576);
+            ts.startOnNewLine(forStatement);
+            prologueStatements.push(forStatement);
+            if (parameter.name.kind !== 75) {
+                prologueStatements.push(ts.setEmitFlags(ts.setTextRange(ts.createVariableStatement(undefined, ts.createVariableDeclarationList(ts.flattenDestructuringBinding(parameter, visitor, context, 0, expressionName))), parameter), 1048576));
+            }
+            ts.insertStatementsAfterCustomPrologue(statements, prologueStatements);
+            return true;
+        }
+        function insertCaptureThisForNodeIfNeeded(statements, node) {
+            if (hierarchyFacts & 32768 && node.kind !== 202) {
+                insertCaptureThisForNode(statements, node, ts.createThis());
+                return true;
+            }
+            return false;
+        }
+        function insertCaptureThisForNode(statements, node, initializer) {
+            enableSubstitutionsForCapturedThis();
+            var captureThisStatement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(ts.createFileLevelUniqueName("_this"), undefined, initializer)
+            ]));
+            ts.setEmitFlags(captureThisStatement, 1536 | 1048576);
+            ts.setSourceMapRange(captureThisStatement, node);
+            ts.insertStatementAfterCustomPrologue(statements, captureThisStatement);
+        }
+        function insertCaptureNewTargetIfNeeded(statements, node, copyOnWrite) {
+            if (hierarchyFacts & 16384) {
+                var newTarget = void 0;
+                switch (node.kind) {
+                    case 202:
+                        return statements;
+                    case 161:
+                    case 163:
+                    case 164:
+                        newTarget = ts.createVoidZero();
+                        break;
+                    case 162:
+                        newTarget = ts.createPropertyAccess(ts.setEmitFlags(ts.createThis(), 4), "constructor");
+                        break;
+                    case 244:
+                    case 201:
+                        newTarget = ts.createConditional(ts.createLogicalAnd(ts.setEmitFlags(ts.createThis(), 4), ts.createBinary(ts.setEmitFlags(ts.createThis(), 4), 98, ts.getLocalName(node))), ts.createPropertyAccess(ts.setEmitFlags(ts.createThis(), 4), "constructor"), ts.createVoidZero());
+                        break;
+                    default:
+                        return ts.Debug.failBadSyntaxKind(node);
+                }
+                var captureNewTargetStatement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                    ts.createVariableDeclaration(ts.createFileLevelUniqueName("_newTarget"), undefined, newTarget)
+                ]));
+                ts.setEmitFlags(captureNewTargetStatement, 1536 | 1048576);
+                if (copyOnWrite) {
+                    statements = statements.slice();
+                }
+                ts.insertStatementAfterCustomPrologue(statements, captureNewTargetStatement);
+            }
+            return statements;
+        }
+        function addClassMembers(statements, node) {
+            for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
+                var member = _a[_i];
+                switch (member.kind) {
+                    case 222:
+                        statements.push(transformSemicolonClassElementToStatement(member));
+                        break;
+                    case 161:
+                        statements.push(transformClassMethodDeclarationToStatement(getClassMemberPrefix(node, member), member, node));
+                        break;
+                    case 163:
+                    case 164:
+                        var accessors = ts.getAllAccessorDeclarations(node.members, member);
+                        if (member === accessors.firstAccessor) {
+                            statements.push(transformAccessorsToStatement(getClassMemberPrefix(node, member), accessors, node));
+                        }
+                        break;
+                    case 162:
+                        break;
+                    default:
+                        ts.Debug.failBadSyntaxKind(member, currentSourceFile && currentSourceFile.fileName);
+                        break;
+                }
+            }
+        }
+        function transformSemicolonClassElementToStatement(member) {
+            return ts.setTextRange(ts.createEmptyStatement(), member);
+        }
+        function transformClassMethodDeclarationToStatement(receiver, member, container) {
+            var commentRange = ts.getCommentRange(member);
+            var sourceMapRange = ts.getSourceMapRange(member);
+            var memberFunction = transformFunctionLikeToExpression(member, member, undefined, container);
+            var propertyName = ts.visitNode(member.name, visitor, ts.isPropertyName);
+            var e;
+            if (!ts.isPrivateIdentifier(propertyName) && context.getCompilerOptions().useDefineForClassFields) {
+                var name = ts.isComputedPropertyName(propertyName) ? propertyName.expression
+                    : ts.isIdentifier(propertyName) ? ts.createStringLiteral(ts.unescapeLeadingUnderscores(propertyName.escapedText))
+                        : propertyName;
+                e = ts.createObjectDefinePropertyCall(receiver, name, ts.createPropertyDescriptor({ value: memberFunction, enumerable: false, writable: true, configurable: true }));
+            }
+            else {
+                var memberName = ts.createMemberAccessForPropertyName(receiver, propertyName, member.name);
+                e = ts.createAssignment(memberName, memberFunction);
+            }
+            ts.setEmitFlags(memberFunction, 1536);
+            ts.setSourceMapRange(memberFunction, sourceMapRange);
+            var statement = ts.setTextRange(ts.createExpressionStatement(e), member);
+            ts.setOriginalNode(statement, member);
+            ts.setCommentRange(statement, commentRange);
+            ts.setEmitFlags(statement, 48);
+            return statement;
+        }
+        function transformAccessorsToStatement(receiver, accessors, container) {
+            var statement = ts.createExpressionStatement(transformAccessorsToExpression(receiver, accessors, container, false));
+            ts.setEmitFlags(statement, 1536);
+            ts.setSourceMapRange(statement, ts.getSourceMapRange(accessors.firstAccessor));
+            return statement;
+        }
+        function transformAccessorsToExpression(receiver, _a, container, startsOnNewLine) {
+            var firstAccessor = _a.firstAccessor, getAccessor = _a.getAccessor, setAccessor = _a.setAccessor;
+            var target = ts.getMutableClone(receiver);
+            ts.setEmitFlags(target, 1536 | 32);
+            ts.setSourceMapRange(target, firstAccessor.name);
+            var visitedAccessorName = ts.visitNode(firstAccessor.name, visitor, ts.isPropertyName);
+            if (ts.isPrivateIdentifier(visitedAccessorName)) {
+                return ts.Debug.failBadSyntaxKind(visitedAccessorName, "Encountered unhandled private identifier while transforming ES2015.");
+            }
+            var propertyName = ts.createExpressionForPropertyName(visitedAccessorName);
+            ts.setEmitFlags(propertyName, 1536 | 16);
+            ts.setSourceMapRange(propertyName, firstAccessor.name);
+            var properties = [];
+            if (getAccessor) {
+                var getterFunction = transformFunctionLikeToExpression(getAccessor, undefined, undefined, container);
+                ts.setSourceMapRange(getterFunction, ts.getSourceMapRange(getAccessor));
+                ts.setEmitFlags(getterFunction, 512);
+                var getter = ts.createPropertyAssignment("get", getterFunction);
+                ts.setCommentRange(getter, ts.getCommentRange(getAccessor));
+                properties.push(getter);
+            }
+            if (setAccessor) {
+                var setterFunction = transformFunctionLikeToExpression(setAccessor, undefined, undefined, container);
+                ts.setSourceMapRange(setterFunction, ts.getSourceMapRange(setAccessor));
+                ts.setEmitFlags(setterFunction, 512);
+                var setter = ts.createPropertyAssignment("set", setterFunction);
+                ts.setCommentRange(setter, ts.getCommentRange(setAccessor));
+                properties.push(setter);
+            }
+            properties.push(ts.createPropertyAssignment("enumerable", getAccessor || setAccessor ? ts.createFalse() : ts.createTrue()), ts.createPropertyAssignment("configurable", ts.createTrue()));
+            var call = ts.createCall(ts.createPropertyAccess(ts.createIdentifier("Object"), "defineProperty"), undefined, [
+                target,
+                propertyName,
+                ts.createObjectLiteral(properties, true)
+            ]);
+            if (startsOnNewLine) {
+                ts.startOnNewLine(call);
+            }
+            return call;
+        }
+        function visitArrowFunction(node) {
+            if (node.transformFlags & 4096) {
+                hierarchyFacts |= 32768;
+            }
+            var savedConvertedLoopState = convertedLoopState;
+            convertedLoopState = undefined;
+            var ancestorFacts = enterSubtree(15232, 66);
+            var func = ts.createFunctionExpression(undefined, undefined, undefined, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+            ts.setTextRange(func, node);
+            ts.setOriginalNode(func, node);
+            ts.setEmitFlags(func, 8);
+            if (hierarchyFacts & 32768) {
+                enableSubstitutionsForCapturedThis();
+            }
+            exitSubtree(ancestorFacts, 0, 0);
+            convertedLoopState = savedConvertedLoopState;
+            return func;
+        }
+        function visitFunctionExpression(node) {
+            var ancestorFacts = ts.getEmitFlags(node) & 262144
+                ? enterSubtree(16278, 69)
+                : enterSubtree(16286, 65);
+            var savedConvertedLoopState = convertedLoopState;
+            convertedLoopState = undefined;
+            var parameters = ts.visitParameterList(node.parameters, visitor, context);
+            var body = transformFunctionBody(node);
+            var name = hierarchyFacts & 16384
+                ? ts.getLocalName(node)
+                : node.name;
+            exitSubtree(ancestorFacts, 49152, 0);
+            convertedLoopState = savedConvertedLoopState;
+            return ts.updateFunctionExpression(node, undefined, node.asteriskToken, name, undefined, parameters, undefined, body);
+        }
+        function visitFunctionDeclaration(node) {
+            var savedConvertedLoopState = convertedLoopState;
+            convertedLoopState = undefined;
+            var ancestorFacts = enterSubtree(16286, 65);
+            var parameters = ts.visitParameterList(node.parameters, visitor, context);
+            var body = transformFunctionBody(node);
+            var name = hierarchyFacts & 16384
+                ? ts.getLocalName(node)
+                : node.name;
+            exitSubtree(ancestorFacts, 49152, 0);
+            convertedLoopState = savedConvertedLoopState;
+            return ts.updateFunctionDeclaration(node, undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.asteriskToken, name, undefined, parameters, undefined, body);
+        }
+        function transformFunctionLikeToExpression(node, location, name, container) {
+            var savedConvertedLoopState = convertedLoopState;
+            convertedLoopState = undefined;
+            var ancestorFacts = container && ts.isClassLike(container) && !ts.hasModifier(node, 32)
+                ? enterSubtree(16286, 65 | 8)
+                : enterSubtree(16286, 65);
+            var parameters = ts.visitParameterList(node.parameters, visitor, context);
+            var body = transformFunctionBody(node);
+            if (hierarchyFacts & 16384 && !name && (node.kind === 244 || node.kind === 201)) {
+                name = ts.getGeneratedNameForNode(node);
+            }
+            exitSubtree(ancestorFacts, 49152, 0);
+            convertedLoopState = savedConvertedLoopState;
+            return ts.setOriginalNode(ts.setTextRange(ts.createFunctionExpression(undefined, node.asteriskToken, name, undefined, parameters, undefined, body), location), node);
+        }
+        function transformFunctionBody(node) {
+            var multiLine = false;
+            var singleLine = false;
+            var statementsLocation;
+            var closeBraceLocation;
+            var prologue = [];
+            var statements = [];
+            var body = node.body;
+            var statementOffset;
+            resumeLexicalEnvironment();
+            if (ts.isBlock(body)) {
+                statementOffset = ts.addStandardPrologue(prologue, body.statements, false);
+                statementOffset = ts.addCustomPrologue(statements, body.statements, statementOffset, visitor, ts.isHoistedFunction);
+                statementOffset = ts.addCustomPrologue(statements, body.statements, statementOffset, visitor, ts.isHoistedVariableStatement);
+            }
+            multiLine = addDefaultValueAssignmentsIfNeeded(statements, node) || multiLine;
+            multiLine = addRestParameterIfNeeded(statements, node, false) || multiLine;
+            if (ts.isBlock(body)) {
+                statementOffset = ts.addCustomPrologue(statements, body.statements, statementOffset, visitor);
+                statementsLocation = body.statements;
+                ts.addRange(statements, ts.visitNodes(body.statements, visitor, ts.isStatement, statementOffset));
+                if (!multiLine && body.multiLine) {
+                    multiLine = true;
+                }
+            }
+            else {
+                ts.Debug.assert(node.kind === 202);
+                statementsLocation = ts.moveRangeEnd(body, -1);
+                var equalsGreaterThanToken = node.equalsGreaterThanToken;
+                if (!ts.nodeIsSynthesized(equalsGreaterThanToken) && !ts.nodeIsSynthesized(body)) {
+                    if (ts.rangeEndIsOnSameLineAsRangeStart(equalsGreaterThanToken, body, currentSourceFile)) {
+                        singleLine = true;
+                    }
+                    else {
+                        multiLine = true;
+                    }
+                }
+                var expression = ts.visitNode(body, visitor, ts.isExpression);
+                var returnStatement = ts.createReturn(expression);
+                ts.setTextRange(returnStatement, body);
+                ts.moveSyntheticComments(returnStatement, body);
+                ts.setEmitFlags(returnStatement, 384 | 32 | 1024);
+                statements.push(returnStatement);
+                closeBraceLocation = body;
+            }
+            ts.mergeLexicalEnvironment(prologue, endLexicalEnvironment());
+            insertCaptureNewTargetIfNeeded(prologue, node, false);
+            insertCaptureThisForNodeIfNeeded(prologue, node);
+            if (ts.some(prologue)) {
+                multiLine = true;
+            }
+            statements.unshift.apply(statements, prologue);
+            if (ts.isBlock(body) && ts.arrayIsEqualTo(statements, body.statements)) {
+                return body;
+            }
+            var block = ts.createBlock(ts.setTextRange(ts.createNodeArray(statements), statementsLocation), multiLine);
+            ts.setTextRange(block, node.body);
+            if (!multiLine && singleLine) {
+                ts.setEmitFlags(block, 1);
+            }
+            if (closeBraceLocation) {
+                ts.setTokenSourceMapRange(block, 19, closeBraceLocation);
+            }
+            ts.setOriginalNode(block, node.body);
+            return block;
+        }
+        function visitBlock(node, isFunctionBody) {
+            if (isFunctionBody) {
+                return ts.visitEachChild(node, visitor, context);
+            }
+            var ancestorFacts = hierarchyFacts & 256
+                ? enterSubtree(7104, 512)
+                : enterSubtree(6976, 128);
+            var updated = ts.visitEachChild(node, visitor, context);
+            exitSubtree(ancestorFacts, 0, 0);
+            return updated;
+        }
+        function visitExpressionStatement(node) {
+            switch (node.expression.kind) {
+                case 200:
+                    return ts.updateExpressionStatement(node, visitParenthesizedExpression(node.expression, false));
+                case 209:
+                    return ts.updateExpressionStatement(node, visitBinaryExpression(node.expression, false));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitParenthesizedExpression(node, needsDestructuringValue) {
+            if (!needsDestructuringValue) {
+                switch (node.expression.kind) {
+                    case 200:
+                        return ts.updateParen(node, visitParenthesizedExpression(node.expression, false));
+                    case 209:
+                        return ts.updateParen(node, visitBinaryExpression(node.expression, false));
+                }
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitBinaryExpression(node, needsDestructuringValue) {
+            if (ts.isDestructuringAssignment(node)) {
+                return ts.flattenDestructuringAssignment(node, visitor, context, 0, needsDestructuringValue);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function isVariableStatementOfTypeScriptClassWrapper(node) {
+            return node.declarationList.declarations.length === 1
+                && !!node.declarationList.declarations[0].initializer
+                && !!(ts.getEmitFlags(node.declarationList.declarations[0].initializer) & 33554432);
+        }
+        function visitVariableStatement(node) {
+            var ancestorFacts = enterSubtree(0, ts.hasModifier(node, 1) ? 32 : 0);
+            var updated;
+            if (convertedLoopState && (node.declarationList.flags & 3) === 0 && !isVariableStatementOfTypeScriptClassWrapper(node)) {
+                var assignments = void 0;
+                for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
+                    var decl = _a[_i];
+                    hoistVariableDeclarationDeclaredInConvertedLoop(convertedLoopState, decl);
+                    if (decl.initializer) {
+                        var assignment = void 0;
+                        if (ts.isBindingPattern(decl.name)) {
+                            assignment = ts.flattenDestructuringAssignment(decl, visitor, context, 0);
+                        }
+                        else {
+                            assignment = ts.createBinary(decl.name, 62, ts.visitNode(decl.initializer, visitor, ts.isExpression));
+                            ts.setTextRange(assignment, decl);
+                        }
+                        assignments = ts.append(assignments, assignment);
+                    }
+                }
+                if (assignments) {
+                    updated = ts.setTextRange(ts.createExpressionStatement(ts.inlineExpressions(assignments)), node);
+                }
+                else {
+                    updated = undefined;
+                }
+            }
+            else {
+                updated = ts.visitEachChild(node, visitor, context);
+            }
+            exitSubtree(ancestorFacts, 0, 0);
+            return updated;
+        }
+        function visitVariableDeclarationList(node) {
+            if (node.flags & 3 || node.transformFlags & 131072) {
+                if (node.flags & 3) {
+                    enableSubstitutionsForBlockScopedBindings();
+                }
+                var declarations = ts.flatMap(node.declarations, node.flags & 1
+                    ? visitVariableDeclarationInLetDeclarationList
+                    : visitVariableDeclaration);
+                var declarationList = ts.createVariableDeclarationList(declarations);
+                ts.setOriginalNode(declarationList, node);
+                ts.setTextRange(declarationList, node);
+                ts.setCommentRange(declarationList, node);
+                if (node.transformFlags & 131072
+                    && (ts.isBindingPattern(node.declarations[0].name) || ts.isBindingPattern(ts.last(node.declarations).name))) {
+                    ts.setSourceMapRange(declarationList, getRangeUnion(declarations));
+                }
+                return declarationList;
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function getRangeUnion(declarations) {
+            var pos = -1, end = -1;
+            for (var _i = 0, declarations_10 = declarations; _i < declarations_10.length; _i++) {
+                var node = declarations_10[_i];
+                pos = pos === -1 ? node.pos : node.pos === -1 ? pos : Math.min(pos, node.pos);
+                end = Math.max(end, node.end);
+            }
+            return ts.createRange(pos, end);
+        }
+        function shouldEmitExplicitInitializerForLetDeclaration(node) {
+            var flags = resolver.getNodeCheckFlags(node);
+            var isCapturedInFunction = flags & 262144;
+            var isDeclaredInLoop = flags & 524288;
+            var emittedAsTopLevel = (hierarchyFacts & 64) !== 0
+                || (isCapturedInFunction
+                    && isDeclaredInLoop
+                    && (hierarchyFacts & 512) !== 0);
+            var emitExplicitInitializer = !emittedAsTopLevel
+                && (hierarchyFacts & 4096) === 0
+                && (!resolver.isDeclarationWithCollidingName(node)
+                    || (isDeclaredInLoop
+                        && !isCapturedInFunction
+                        && (hierarchyFacts & (2048 | 4096)) === 0));
+            return emitExplicitInitializer;
+        }
+        function visitVariableDeclarationInLetDeclarationList(node) {
+            var name = node.name;
+            if (ts.isBindingPattern(name)) {
+                return visitVariableDeclaration(node);
+            }
+            if (!node.initializer && shouldEmitExplicitInitializerForLetDeclaration(node)) {
+                var clone_3 = ts.getMutableClone(node);
+                clone_3.initializer = ts.createVoidZero();
+                return clone_3;
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitVariableDeclaration(node) {
+            var ancestorFacts = enterSubtree(32, 0);
+            var updated;
+            if (ts.isBindingPattern(node.name)) {
+                updated = ts.flattenDestructuringBinding(node, visitor, context, 0, undefined, (ancestorFacts & 32) !== 0);
+            }
+            else {
+                updated = ts.visitEachChild(node, visitor, context);
+            }
+            exitSubtree(ancestorFacts, 0, 0);
+            return updated;
+        }
+        function recordLabel(node) {
+            convertedLoopState.labels.set(ts.idText(node.label), true);
+        }
+        function resetLabel(node) {
+            convertedLoopState.labels.set(ts.idText(node.label), false);
+        }
+        function visitLabeledStatement(node) {
+            if (convertedLoopState && !convertedLoopState.labels) {
+                convertedLoopState.labels = ts.createMap();
+            }
+            var statement = ts.unwrapInnermostStatementOfLabel(node, convertedLoopState && recordLabel);
+            return ts.isIterationStatement(statement, false)
+                ? visitIterationStatement(statement, node)
+                : ts.restoreEnclosingLabel(ts.visitNode(statement, visitor, ts.isStatement, ts.liftToBlock), node, convertedLoopState && resetLabel);
+        }
+        function visitIterationStatement(node, outermostLabeledStatement) {
+            switch (node.kind) {
+                case 228:
+                case 229:
+                    return visitDoOrWhileStatement(node, outermostLabeledStatement);
+                case 230:
+                    return visitForStatement(node, outermostLabeledStatement);
+                case 231:
+                    return visitForInStatement(node, outermostLabeledStatement);
+                case 232:
+                    return visitForOfStatement(node, outermostLabeledStatement);
+            }
+        }
+        function visitIterationStatementWithFacts(excludeFacts, includeFacts, node, outermostLabeledStatement, convert) {
+            var ancestorFacts = enterSubtree(excludeFacts, includeFacts);
+            var updated = convertIterationStatementBodyIfNecessary(node, outermostLabeledStatement, ancestorFacts, convert);
+            exitSubtree(ancestorFacts, 0, 0);
+            return updated;
+        }
+        function visitDoOrWhileStatement(node, outermostLabeledStatement) {
+            return visitIterationStatementWithFacts(0, 1280, node, outermostLabeledStatement);
+        }
+        function visitForStatement(node, outermostLabeledStatement) {
+            return visitIterationStatementWithFacts(5056, 3328, node, outermostLabeledStatement);
+        }
+        function visitForInStatement(node, outermostLabeledStatement) {
+            return visitIterationStatementWithFacts(3008, 5376, node, outermostLabeledStatement);
+        }
+        function visitForOfStatement(node, outermostLabeledStatement) {
+            return visitIterationStatementWithFacts(3008, 5376, node, outermostLabeledStatement, compilerOptions.downlevelIteration ? convertForOfStatementForIterable : convertForOfStatementForArray);
+        }
+        function convertForOfStatementHead(node, boundValue, convertedLoopBodyStatements) {
+            var statements = [];
+            var initializer = node.initializer;
+            if (ts.isVariableDeclarationList(initializer)) {
+                if (node.initializer.flags & 3) {
+                    enableSubstitutionsForBlockScopedBindings();
+                }
+                var firstOriginalDeclaration = ts.firstOrUndefined(initializer.declarations);
+                if (firstOriginalDeclaration && ts.isBindingPattern(firstOriginalDeclaration.name)) {
+                    var declarations = ts.flattenDestructuringBinding(firstOriginalDeclaration, visitor, context, 0, boundValue);
+                    var declarationList = ts.setTextRange(ts.createVariableDeclarationList(declarations), node.initializer);
+                    ts.setOriginalNode(declarationList, node.initializer);
+                    ts.setSourceMapRange(declarationList, ts.createRange(declarations[0].pos, ts.last(declarations).end));
+                    statements.push(ts.createVariableStatement(undefined, declarationList));
+                }
+                else {
+                    statements.push(ts.setTextRange(ts.createVariableStatement(undefined, ts.setOriginalNode(ts.setTextRange(ts.createVariableDeclarationList([
+                        ts.createVariableDeclaration(firstOriginalDeclaration ? firstOriginalDeclaration.name : ts.createTempVariable(undefined), undefined, boundValue)
+                    ]), ts.moveRangePos(initializer, -1)), initializer)), ts.moveRangeEnd(initializer, -1)));
+                }
+            }
+            else {
+                var assignment = ts.createAssignment(initializer, boundValue);
+                if (ts.isDestructuringAssignment(assignment)) {
+                    ts.aggregateTransformFlags(assignment);
+                    statements.push(ts.createExpressionStatement(visitBinaryExpression(assignment, false)));
+                }
+                else {
+                    assignment.end = initializer.end;
+                    statements.push(ts.setTextRange(ts.createExpressionStatement(ts.visitNode(assignment, visitor, ts.isExpression)), ts.moveRangeEnd(initializer, -1)));
+                }
+            }
+            if (convertedLoopBodyStatements) {
+                return createSyntheticBlockForConvertedStatements(ts.addRange(statements, convertedLoopBodyStatements));
+            }
+            else {
+                var statement = ts.visitNode(node.statement, visitor, ts.isStatement, ts.liftToBlock);
+                if (ts.isBlock(statement)) {
+                    return ts.updateBlock(statement, ts.setTextRange(ts.createNodeArray(ts.concatenate(statements, statement.statements)), statement.statements));
+                }
+                else {
+                    statements.push(statement);
+                    return createSyntheticBlockForConvertedStatements(statements);
+                }
+            }
+        }
+        function createSyntheticBlockForConvertedStatements(statements) {
+            return ts.setEmitFlags(ts.createBlock(ts.createNodeArray(statements), true), 48 | 384);
+        }
+        function convertForOfStatementForArray(node, outermostLabeledStatement, convertedLoopBodyStatements) {
+            var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+            var counter = ts.createLoopVariable();
+            var rhsReference = ts.isIdentifier(expression) ? ts.getGeneratedNameForNode(expression) : ts.createTempVariable(undefined);
+            ts.setEmitFlags(expression, 48 | ts.getEmitFlags(expression));
+            var forStatement = ts.setTextRange(ts.createFor(ts.setEmitFlags(ts.setTextRange(ts.createVariableDeclarationList([
+                ts.setTextRange(ts.createVariableDeclaration(counter, undefined, ts.createLiteral(0)), ts.moveRangePos(node.expression, -1)),
+                ts.setTextRange(ts.createVariableDeclaration(rhsReference, undefined, expression), node.expression)
+            ]), node.expression), 2097152), ts.setTextRange(ts.createLessThan(counter, ts.createPropertyAccess(rhsReference, "length")), node.expression), ts.setTextRange(ts.createPostfixIncrement(counter), node.expression), convertForOfStatementHead(node, ts.createElementAccess(rhsReference, counter), convertedLoopBodyStatements)), node);
+            ts.setEmitFlags(forStatement, 256);
+            ts.setTextRange(forStatement, node);
+            return ts.restoreEnclosingLabel(forStatement, outermostLabeledStatement, convertedLoopState && resetLabel);
+        }
+        function convertForOfStatementForIterable(node, outermostLabeledStatement, convertedLoopBodyStatements, ancestorFacts) {
+            var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+            var iterator = ts.isIdentifier(expression) ? ts.getGeneratedNameForNode(expression) : ts.createTempVariable(undefined);
+            var result = ts.isIdentifier(expression) ? ts.getGeneratedNameForNode(iterator) : ts.createTempVariable(undefined);
+            var errorRecord = ts.createUniqueName("e");
+            var catchVariable = ts.getGeneratedNameForNode(errorRecord);
+            var returnMethod = ts.createTempVariable(undefined);
+            var values = ts.createValuesHelper(context, expression, node.expression);
+            var next = ts.createCall(ts.createPropertyAccess(iterator, "next"), undefined, []);
+            hoistVariableDeclaration(errorRecord);
+            hoistVariableDeclaration(returnMethod);
+            var initializer = ancestorFacts & 1024
+                ? ts.inlineExpressions([ts.createAssignment(errorRecord, ts.createVoidZero()), values])
+                : values;
+            var forStatement = ts.setEmitFlags(ts.setTextRange(ts.createFor(ts.setEmitFlags(ts.setTextRange(ts.createVariableDeclarationList([
+                ts.setTextRange(ts.createVariableDeclaration(iterator, undefined, initializer), node.expression),
+                ts.createVariableDeclaration(result, undefined, next)
+            ]), node.expression), 2097152), ts.createLogicalNot(ts.createPropertyAccess(result, "done")), ts.createAssignment(result, next), convertForOfStatementHead(node, ts.createPropertyAccess(result, "value"), convertedLoopBodyStatements)), node), 256);
+            return ts.createTry(ts.createBlock([
+                ts.restoreEnclosingLabel(forStatement, outermostLabeledStatement, convertedLoopState && resetLabel)
+            ]), ts.createCatchClause(ts.createVariableDeclaration(catchVariable), ts.setEmitFlags(ts.createBlock([
+                ts.createExpressionStatement(ts.createAssignment(errorRecord, ts.createObjectLiteral([
+                    ts.createPropertyAssignment("error", catchVariable)
+                ])))
+            ]), 1)), ts.createBlock([
+                ts.createTry(ts.createBlock([
+                    ts.setEmitFlags(ts.createIf(ts.createLogicalAnd(ts.createLogicalAnd(result, ts.createLogicalNot(ts.createPropertyAccess(result, "done"))), ts.createAssignment(returnMethod, ts.createPropertyAccess(iterator, "return"))), ts.createExpressionStatement(ts.createFunctionCall(returnMethod, iterator, []))), 1),
+                ]), undefined, ts.setEmitFlags(ts.createBlock([
+                    ts.setEmitFlags(ts.createIf(errorRecord, ts.createThrow(ts.createPropertyAccess(errorRecord, "error"))), 1)
+                ]), 1))
+            ]));
+        }
+        function visitObjectLiteralExpression(node) {
+            var properties = node.properties;
+            var numProperties = properties.length;
+            var numInitialProperties = numProperties;
+            var numInitialPropertiesWithoutYield = numProperties;
+            for (var i = 0; i < numProperties; i++) {
+                var property = properties[i];
+                if ((property.transformFlags & 262144 && hierarchyFacts & 4)
+                    && i < numInitialPropertiesWithoutYield) {
+                    numInitialPropertiesWithoutYield = i;
+                }
+                if (property.name.kind === 154) {
+                    numInitialProperties = i;
+                    break;
+                }
+            }
+            if (numInitialProperties !== numProperties) {
+                if (numInitialPropertiesWithoutYield < numInitialProperties) {
+                    numInitialProperties = numInitialPropertiesWithoutYield;
+                }
+                var temp = ts.createTempVariable(hoistVariableDeclaration);
+                var expressions = [];
+                var assignment = ts.createAssignment(temp, ts.setEmitFlags(ts.createObjectLiteral(ts.visitNodes(properties, visitor, ts.isObjectLiteralElementLike, 0, numInitialProperties), node.multiLine), 65536));
+                if (node.multiLine) {
+                    ts.startOnNewLine(assignment);
+                }
+                expressions.push(assignment);
+                addObjectLiteralMembers(expressions, node, temp, numInitialProperties);
+                expressions.push(node.multiLine ? ts.startOnNewLine(ts.getMutableClone(temp)) : temp);
+                return ts.inlineExpressions(expressions);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function shouldConvertPartOfIterationStatement(node) {
+            return (resolver.getNodeCheckFlags(node) & 131072) !== 0;
+        }
+        function shouldConvertInitializerOfForStatement(node) {
+            return ts.isForStatement(node) && !!node.initializer && shouldConvertPartOfIterationStatement(node.initializer);
+        }
+        function shouldConvertConditionOfForStatement(node) {
+            return ts.isForStatement(node) && !!node.condition && shouldConvertPartOfIterationStatement(node.condition);
+        }
+        function shouldConvertIncrementorOfForStatement(node) {
+            return ts.isForStatement(node) && !!node.incrementor && shouldConvertPartOfIterationStatement(node.incrementor);
+        }
+        function shouldConvertIterationStatement(node) {
+            return shouldConvertBodyOfIterationStatement(node)
+                || shouldConvertInitializerOfForStatement(node);
+        }
+        function shouldConvertBodyOfIterationStatement(node) {
+            return (resolver.getNodeCheckFlags(node) & 65536) !== 0;
+        }
+        function hoistVariableDeclarationDeclaredInConvertedLoop(state, node) {
+            if (!state.hoistedLocalVariables) {
+                state.hoistedLocalVariables = [];
+            }
+            visit(node.name);
+            function visit(node) {
+                if (node.kind === 75) {
+                    state.hoistedLocalVariables.push(node);
+                }
+                else {
+                    for (var _i = 0, _a = node.elements; _i < _a.length; _i++) {
+                        var element = _a[_i];
+                        if (!ts.isOmittedExpression(element)) {
+                            visit(element.name);
+                        }
+                    }
+                }
+            }
+        }
+        function convertIterationStatementBodyIfNecessary(node, outermostLabeledStatement, ancestorFacts, convert) {
+            if (!shouldConvertIterationStatement(node)) {
+                var saveAllowedNonLabeledJumps = void 0;
+                if (convertedLoopState) {
+                    saveAllowedNonLabeledJumps = convertedLoopState.allowedNonLabeledJumps;
+                    convertedLoopState.allowedNonLabeledJumps = 2 | 4;
+                }
+                var result = convert
+                    ? convert(node, outermostLabeledStatement, undefined, ancestorFacts)
+                    : ts.restoreEnclosingLabel(ts.visitEachChild(node, visitor, context), outermostLabeledStatement, convertedLoopState && resetLabel);
+                if (convertedLoopState) {
+                    convertedLoopState.allowedNonLabeledJumps = saveAllowedNonLabeledJumps;
+                }
+                return result;
+            }
+            var currentState = createConvertedLoopState(node);
+            var statements = [];
+            var outerConvertedLoopState = convertedLoopState;
+            convertedLoopState = currentState;
+            var initializerFunction = shouldConvertInitializerOfForStatement(node) ? createFunctionForInitializerOfForStatement(node, currentState) : undefined;
+            var bodyFunction = shouldConvertBodyOfIterationStatement(node) ? createFunctionForBodyOfIterationStatement(node, currentState, outerConvertedLoopState) : undefined;
+            convertedLoopState = outerConvertedLoopState;
+            if (initializerFunction)
+                statements.push(initializerFunction.functionDeclaration);
+            if (bodyFunction)
+                statements.push(bodyFunction.functionDeclaration);
+            addExtraDeclarationsForConvertedLoop(statements, currentState, outerConvertedLoopState);
+            if (initializerFunction) {
+                statements.push(generateCallToConvertedLoopInitializer(initializerFunction.functionName, initializerFunction.containsYield));
+            }
+            var loop;
+            if (bodyFunction) {
+                if (convert) {
+                    loop = convert(node, outermostLabeledStatement, bodyFunction.part, ancestorFacts);
+                }
+                else {
+                    var clone_4 = convertIterationStatementCore(node, initializerFunction, ts.createBlock(bodyFunction.part, true));
+                    ts.aggregateTransformFlags(clone_4);
+                    loop = ts.restoreEnclosingLabel(clone_4, outermostLabeledStatement, convertedLoopState && resetLabel);
+                }
+            }
+            else {
+                var clone_5 = convertIterationStatementCore(node, initializerFunction, ts.visitNode(node.statement, visitor, ts.isStatement, ts.liftToBlock));
+                ts.aggregateTransformFlags(clone_5);
+                loop = ts.restoreEnclosingLabel(clone_5, outermostLabeledStatement, convertedLoopState && resetLabel);
+            }
+            statements.push(loop);
+            return statements;
+        }
+        function convertIterationStatementCore(node, initializerFunction, convertedLoopBody) {
+            switch (node.kind) {
+                case 230: return convertForStatement(node, initializerFunction, convertedLoopBody);
+                case 231: return convertForInStatement(node, convertedLoopBody);
+                case 232: return convertForOfStatement(node, convertedLoopBody);
+                case 228: return convertDoStatement(node, convertedLoopBody);
+                case 229: return convertWhileStatement(node, convertedLoopBody);
+                default: return ts.Debug.failBadSyntaxKind(node, "IterationStatement expected");
+            }
+        }
+        function convertForStatement(node, initializerFunction, convertedLoopBody) {
+            var shouldConvertCondition = node.condition && shouldConvertPartOfIterationStatement(node.condition);
+            var shouldConvertIncrementor = shouldConvertCondition || node.incrementor && shouldConvertPartOfIterationStatement(node.incrementor);
+            return ts.updateFor(node, ts.visitNode(initializerFunction ? initializerFunction.part : node.initializer, visitor, ts.isForInitializer), ts.visitNode(shouldConvertCondition ? undefined : node.condition, visitor, ts.isExpression), ts.visitNode(shouldConvertIncrementor ? undefined : node.incrementor, visitor, ts.isExpression), convertedLoopBody);
+        }
+        function convertForOfStatement(node, convertedLoopBody) {
+            return ts.updateForOf(node, undefined, ts.visitNode(node.initializer, visitor, ts.isForInitializer), ts.visitNode(node.expression, visitor, ts.isExpression), convertedLoopBody);
+        }
+        function convertForInStatement(node, convertedLoopBody) {
+            return ts.updateForIn(node, ts.visitNode(node.initializer, visitor, ts.isForInitializer), ts.visitNode(node.expression, visitor, ts.isExpression), convertedLoopBody);
+        }
+        function convertDoStatement(node, convertedLoopBody) {
+            return ts.updateDo(node, convertedLoopBody, ts.visitNode(node.expression, visitor, ts.isExpression));
+        }
+        function convertWhileStatement(node, convertedLoopBody) {
+            return ts.updateWhile(node, ts.visitNode(node.expression, visitor, ts.isExpression), convertedLoopBody);
+        }
+        function createConvertedLoopState(node) {
+            var loopInitializer;
+            switch (node.kind) {
+                case 230:
+                case 231:
+                case 232:
+                    var initializer = node.initializer;
+                    if (initializer && initializer.kind === 243) {
+                        loopInitializer = initializer;
+                    }
+                    break;
+            }
+            var loopParameters = [];
+            var loopOutParameters = [];
+            if (loopInitializer && (ts.getCombinedNodeFlags(loopInitializer) & 3)) {
+                var hasCapturedBindingsInForInitializer = shouldConvertInitializerOfForStatement(node);
+                for (var _i = 0, _a = loopInitializer.declarations; _i < _a.length; _i++) {
+                    var decl = _a[_i];
+                    processLoopVariableDeclaration(node, decl, loopParameters, loopOutParameters, hasCapturedBindingsInForInitializer);
+                }
+            }
+            var currentState = { loopParameters: loopParameters, loopOutParameters: loopOutParameters };
+            if (convertedLoopState) {
+                if (convertedLoopState.argumentsName) {
+                    currentState.argumentsName = convertedLoopState.argumentsName;
+                }
+                if (convertedLoopState.thisName) {
+                    currentState.thisName = convertedLoopState.thisName;
+                }
+                if (convertedLoopState.hoistedLocalVariables) {
+                    currentState.hoistedLocalVariables = convertedLoopState.hoistedLocalVariables;
+                }
+            }
+            return currentState;
+        }
+        function addExtraDeclarationsForConvertedLoop(statements, state, outerState) {
+            var extraVariableDeclarations;
+            if (state.argumentsName) {
+                if (outerState) {
+                    outerState.argumentsName = state.argumentsName;
+                }
+                else {
+                    (extraVariableDeclarations || (extraVariableDeclarations = [])).push(ts.createVariableDeclaration(state.argumentsName, undefined, ts.createIdentifier("arguments")));
+                }
+            }
+            if (state.thisName) {
+                if (outerState) {
+                    outerState.thisName = state.thisName;
+                }
+                else {
+                    (extraVariableDeclarations || (extraVariableDeclarations = [])).push(ts.createVariableDeclaration(state.thisName, undefined, ts.createIdentifier("this")));
+                }
+            }
+            if (state.hoistedLocalVariables) {
+                if (outerState) {
+                    outerState.hoistedLocalVariables = state.hoistedLocalVariables;
+                }
+                else {
+                    if (!extraVariableDeclarations) {
+                        extraVariableDeclarations = [];
+                    }
+                    for (var _i = 0, _a = state.hoistedLocalVariables; _i < _a.length; _i++) {
+                        var identifier = _a[_i];
+                        extraVariableDeclarations.push(ts.createVariableDeclaration(identifier));
+                    }
+                }
+            }
+            if (state.loopOutParameters.length) {
+                if (!extraVariableDeclarations) {
+                    extraVariableDeclarations = [];
+                }
+                for (var _b = 0, _c = state.loopOutParameters; _b < _c.length; _b++) {
+                    var outParam = _c[_b];
+                    extraVariableDeclarations.push(ts.createVariableDeclaration(outParam.outParamName));
+                }
+            }
+            if (state.conditionVariable) {
+                if (!extraVariableDeclarations) {
+                    extraVariableDeclarations = [];
+                }
+                extraVariableDeclarations.push(ts.createVariableDeclaration(state.conditionVariable, undefined, ts.createFalse()));
+            }
+            if (extraVariableDeclarations) {
+                statements.push(ts.createVariableStatement(undefined, ts.createVariableDeclarationList(extraVariableDeclarations)));
+            }
+        }
+        function createOutVariable(p) {
+            return ts.createVariableDeclaration(p.originalName, undefined, p.outParamName);
+        }
+        function createFunctionForInitializerOfForStatement(node, currentState) {
+            var functionName = ts.createUniqueName("_loop_init");
+            var containsYield = (node.initializer.transformFlags & 262144) !== 0;
+            var emitFlags = 0;
+            if (currentState.containsLexicalThis)
+                emitFlags |= 8;
+            if (containsYield && hierarchyFacts & 4)
+                emitFlags |= 262144;
+            var statements = [];
+            statements.push(ts.createVariableStatement(undefined, node.initializer));
+            copyOutParameters(currentState.loopOutParameters, 2, 1, statements);
+            var functionDeclaration = ts.createVariableStatement(undefined, ts.setEmitFlags(ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(functionName, undefined, ts.setEmitFlags(ts.createFunctionExpression(undefined, containsYield ? ts.createToken(41) : undefined, undefined, undefined, undefined, undefined, ts.visitNode(ts.createBlock(statements, true), visitor, ts.isBlock)), emitFlags))
+            ]), 2097152));
+            var part = ts.createVariableDeclarationList(ts.map(currentState.loopOutParameters, createOutVariable));
+            return { functionName: functionName, containsYield: containsYield, functionDeclaration: functionDeclaration, part: part };
+        }
+        function createFunctionForBodyOfIterationStatement(node, currentState, outerState) {
+            var functionName = ts.createUniqueName("_loop");
+            startLexicalEnvironment();
+            var statement = ts.visitNode(node.statement, visitor, ts.isStatement, ts.liftToBlock);
+            var lexicalEnvironment = endLexicalEnvironment();
+            var statements = [];
+            if (shouldConvertConditionOfForStatement(node) || shouldConvertIncrementorOfForStatement(node)) {
+                currentState.conditionVariable = ts.createUniqueName("inc");
+                statements.push(ts.createIf(currentState.conditionVariable, ts.createStatement(ts.visitNode(node.incrementor, visitor, ts.isExpression)), ts.createStatement(ts.createAssignment(currentState.conditionVariable, ts.createTrue()))));
+                if (shouldConvertConditionOfForStatement(node)) {
+                    statements.push(ts.createIf(ts.createPrefix(53, ts.visitNode(node.condition, visitor, ts.isExpression)), ts.visitNode(ts.createBreak(), visitor, ts.isStatement)));
+                }
+            }
+            if (ts.isBlock(statement)) {
+                ts.addRange(statements, statement.statements);
+            }
+            else {
+                statements.push(statement);
+            }
+            copyOutParameters(currentState.loopOutParameters, 1, 1, statements);
+            ts.insertStatementsAfterStandardPrologue(statements, lexicalEnvironment);
+            var loopBody = ts.createBlock(statements, true);
+            if (ts.isBlock(statement))
+                ts.setOriginalNode(loopBody, statement);
+            var containsYield = (node.statement.transformFlags & 262144) !== 0;
+            var emitFlags = 0;
+            if (currentState.containsLexicalThis)
+                emitFlags |= 8;
+            if (containsYield && (hierarchyFacts & 4) !== 0)
+                emitFlags |= 262144;
+            var functionDeclaration = ts.createVariableStatement(undefined, ts.setEmitFlags(ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(functionName, undefined, ts.setEmitFlags(ts.createFunctionExpression(undefined, containsYield ? ts.createToken(41) : undefined, undefined, undefined, currentState.loopParameters, undefined, loopBody), emitFlags))
+            ]), 2097152));
+            var part = generateCallToConvertedLoop(functionName, currentState, outerState, containsYield);
+            return { functionName: functionName, containsYield: containsYield, functionDeclaration: functionDeclaration, part: part };
+        }
+        function copyOutParameter(outParam, copyDirection) {
+            var source = copyDirection === 0 ? outParam.outParamName : outParam.originalName;
+            var target = copyDirection === 0 ? outParam.originalName : outParam.outParamName;
+            return ts.createBinary(target, 62, source);
+        }
+        function copyOutParameters(outParams, partFlags, copyDirection, statements) {
+            for (var _i = 0, outParams_1 = outParams; _i < outParams_1.length; _i++) {
+                var outParam = outParams_1[_i];
+                if (outParam.flags & partFlags) {
+                    statements.push(ts.createExpressionStatement(copyOutParameter(outParam, copyDirection)));
+                }
+            }
+        }
+        function generateCallToConvertedLoopInitializer(initFunctionExpressionName, containsYield) {
+            var call = ts.createCall(initFunctionExpressionName, undefined, []);
+            var callResult = containsYield
+                ? ts.createYield(ts.createToken(41), ts.setEmitFlags(call, 8388608))
+                : call;
+            return ts.createStatement(callResult);
+        }
+        function generateCallToConvertedLoop(loopFunctionExpressionName, state, outerState, containsYield) {
+            var statements = [];
+            var isSimpleLoop = !(state.nonLocalJumps & ~4) &&
+                !state.labeledNonLocalBreaks &&
+                !state.labeledNonLocalContinues;
+            var call = ts.createCall(loopFunctionExpressionName, undefined, ts.map(state.loopParameters, function (p) { return p.name; }));
+            var callResult = containsYield
+                ? ts.createYield(ts.createToken(41), ts.setEmitFlags(call, 8388608))
+                : call;
+            if (isSimpleLoop) {
+                statements.push(ts.createExpressionStatement(callResult));
+                copyOutParameters(state.loopOutParameters, 1, 0, statements);
+            }
+            else {
+                var loopResultName = ts.createUniqueName("state");
+                var stateVariable = ts.createVariableStatement(undefined, ts.createVariableDeclarationList([ts.createVariableDeclaration(loopResultName, undefined, callResult)]));
+                statements.push(stateVariable);
+                copyOutParameters(state.loopOutParameters, 1, 0, statements);
+                if (state.nonLocalJumps & 8) {
+                    var returnStatement = void 0;
+                    if (outerState) {
+                        outerState.nonLocalJumps |= 8;
+                        returnStatement = ts.createReturn(loopResultName);
+                    }
+                    else {
+                        returnStatement = ts.createReturn(ts.createPropertyAccess(loopResultName, "value"));
+                    }
+                    statements.push(ts.createIf(ts.createBinary(ts.createTypeOf(loopResultName), 36, ts.createLiteral("object")), returnStatement));
+                }
+                if (state.nonLocalJumps & 2) {
+                    statements.push(ts.createIf(ts.createBinary(loopResultName, 36, ts.createLiteral("break")), ts.createBreak()));
+                }
+                if (state.labeledNonLocalBreaks || state.labeledNonLocalContinues) {
+                    var caseClauses = [];
+                    processLabeledJumps(state.labeledNonLocalBreaks, true, loopResultName, outerState, caseClauses);
+                    processLabeledJumps(state.labeledNonLocalContinues, false, loopResultName, outerState, caseClauses);
+                    statements.push(ts.createSwitch(loopResultName, ts.createCaseBlock(caseClauses)));
+                }
+            }
+            return statements;
+        }
+        function setLabeledJump(state, isBreak, labelText, labelMarker) {
+            if (isBreak) {
+                if (!state.labeledNonLocalBreaks) {
+                    state.labeledNonLocalBreaks = ts.createMap();
+                }
+                state.labeledNonLocalBreaks.set(labelText, labelMarker);
+            }
+            else {
+                if (!state.labeledNonLocalContinues) {
+                    state.labeledNonLocalContinues = ts.createMap();
+                }
+                state.labeledNonLocalContinues.set(labelText, labelMarker);
+            }
+        }
+        function processLabeledJumps(table, isBreak, loopResultName, outerLoop, caseClauses) {
+            if (!table) {
+                return;
+            }
+            table.forEach(function (labelMarker, labelText) {
+                var statements = [];
+                if (!outerLoop || (outerLoop.labels && outerLoop.labels.get(labelText))) {
+                    var label = ts.createIdentifier(labelText);
+                    statements.push(isBreak ? ts.createBreak(label) : ts.createContinue(label));
+                }
+                else {
+                    setLabeledJump(outerLoop, isBreak, labelText, labelMarker);
+                    statements.push(ts.createReturn(loopResultName));
+                }
+                caseClauses.push(ts.createCaseClause(ts.createLiteral(labelMarker), statements));
+            });
+        }
+        function processLoopVariableDeclaration(container, decl, loopParameters, loopOutParameters, hasCapturedBindingsInForInitializer) {
+            var name = decl.name;
+            if (ts.isBindingPattern(name)) {
+                for (var _i = 0, _a = name.elements; _i < _a.length; _i++) {
+                    var element = _a[_i];
+                    if (!ts.isOmittedExpression(element)) {
+                        processLoopVariableDeclaration(container, element, loopParameters, loopOutParameters, hasCapturedBindingsInForInitializer);
+                    }
+                }
+            }
+            else {
+                loopParameters.push(ts.createParameter(undefined, undefined, undefined, name));
+                var checkFlags = resolver.getNodeCheckFlags(decl);
+                if (checkFlags & 4194304 || hasCapturedBindingsInForInitializer) {
+                    var outParamName = ts.createUniqueName("out_" + ts.idText(name));
+                    var flags = 0;
+                    if (checkFlags & 4194304) {
+                        flags |= 1;
+                    }
+                    if (ts.isForStatement(container) && container.initializer && resolver.isBindingCapturedByNode(container.initializer, decl)) {
+                        flags |= 2;
+                    }
+                    loopOutParameters.push({ flags: flags, originalName: name, outParamName: outParamName });
+                }
+            }
+        }
+        function addObjectLiteralMembers(expressions, node, receiver, start) {
+            var properties = node.properties;
+            var numProperties = properties.length;
+            for (var i = start; i < numProperties; i++) {
+                var property = properties[i];
+                switch (property.kind) {
+                    case 163:
+                    case 164:
+                        var accessors = ts.getAllAccessorDeclarations(node.properties, property);
+                        if (property === accessors.firstAccessor) {
+                            expressions.push(transformAccessorsToExpression(receiver, accessors, node, !!node.multiLine));
+                        }
+                        break;
+                    case 161:
+                        expressions.push(transformObjectLiteralMethodDeclarationToExpression(property, receiver, node, node.multiLine));
+                        break;
+                    case 281:
+                        expressions.push(transformPropertyAssignmentToExpression(property, receiver, node.multiLine));
+                        break;
+                    case 282:
+                        expressions.push(transformShorthandPropertyAssignmentToExpression(property, receiver, node.multiLine));
+                        break;
+                    default:
+                        ts.Debug.failBadSyntaxKind(node);
+                        break;
+                }
+            }
+        }
+        function transformPropertyAssignmentToExpression(property, receiver, startsOnNewLine) {
+            var expression = ts.createAssignment(ts.createMemberAccessForPropertyName(receiver, ts.visitNode(property.name, visitor, ts.isPropertyName)), ts.visitNode(property.initializer, visitor, ts.isExpression));
+            ts.setTextRange(expression, property);
+            if (startsOnNewLine) {
+                ts.startOnNewLine(expression);
+            }
+            return expression;
+        }
+        function transformShorthandPropertyAssignmentToExpression(property, receiver, startsOnNewLine) {
+            var expression = ts.createAssignment(ts.createMemberAccessForPropertyName(receiver, ts.visitNode(property.name, visitor, ts.isPropertyName)), ts.getSynthesizedClone(property.name));
+            ts.setTextRange(expression, property);
+            if (startsOnNewLine) {
+                ts.startOnNewLine(expression);
+            }
+            return expression;
+        }
+        function transformObjectLiteralMethodDeclarationToExpression(method, receiver, container, startsOnNewLine) {
+            var expression = ts.createAssignment(ts.createMemberAccessForPropertyName(receiver, ts.visitNode(method.name, visitor, ts.isPropertyName)), transformFunctionLikeToExpression(method, method, undefined, container));
+            ts.setTextRange(expression, method);
+            if (startsOnNewLine) {
+                ts.startOnNewLine(expression);
+            }
+            return expression;
+        }
+        function visitCatchClause(node) {
+            var ancestorFacts = enterSubtree(7104, 0);
+            var updated;
+            ts.Debug.assert(!!node.variableDeclaration, "Catch clause variable should always be present when downleveling ES2015.");
+            if (ts.isBindingPattern(node.variableDeclaration.name)) {
+                var temp = ts.createTempVariable(undefined);
+                var newVariableDeclaration = ts.createVariableDeclaration(temp);
+                ts.setTextRange(newVariableDeclaration, node.variableDeclaration);
+                var vars = ts.flattenDestructuringBinding(node.variableDeclaration, visitor, context, 0, temp);
+                var list = ts.createVariableDeclarationList(vars);
+                ts.setTextRange(list, node.variableDeclaration);
+                var destructure = ts.createVariableStatement(undefined, list);
+                updated = ts.updateCatchClause(node, newVariableDeclaration, addStatementToStartOfBlock(node.block, destructure));
+            }
+            else {
+                updated = ts.visitEachChild(node, visitor, context);
+            }
+            exitSubtree(ancestorFacts, 0, 0);
+            return updated;
+        }
+        function addStatementToStartOfBlock(block, statement) {
+            var transformedStatements = ts.visitNodes(block.statements, visitor, ts.isStatement);
+            return ts.updateBlock(block, __spreadArrays([statement], transformedStatements));
+        }
+        function visitMethodDeclaration(node) {
+            ts.Debug.assert(!ts.isComputedPropertyName(node.name));
+            var functionExpression = transformFunctionLikeToExpression(node, ts.moveRangePos(node, -1), undefined, undefined);
+            ts.setEmitFlags(functionExpression, 512 | ts.getEmitFlags(functionExpression));
+            return ts.setTextRange(ts.createPropertyAssignment(node.name, functionExpression), node);
+        }
+        function visitAccessorDeclaration(node) {
+            ts.Debug.assert(!ts.isComputedPropertyName(node.name));
+            var savedConvertedLoopState = convertedLoopState;
+            convertedLoopState = undefined;
+            var ancestorFacts = enterSubtree(16286, 65);
+            var updated;
+            var parameters = ts.visitParameterList(node.parameters, visitor, context);
+            var body = transformFunctionBody(node);
+            if (node.kind === 163) {
+                updated = ts.updateGetAccessor(node, node.decorators, node.modifiers, node.name, parameters, node.type, body);
+            }
+            else {
+                updated = ts.updateSetAccessor(node, node.decorators, node.modifiers, node.name, parameters, body);
+            }
+            exitSubtree(ancestorFacts, 49152, 0);
+            convertedLoopState = savedConvertedLoopState;
+            return updated;
+        }
+        function visitShorthandPropertyAssignment(node) {
+            return ts.setTextRange(ts.createPropertyAssignment(node.name, ts.getSynthesizedClone(node.name)), node);
+        }
+        function visitComputedPropertyName(node) {
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitYieldExpression(node) {
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitArrayLiteralExpression(node) {
+            if (ts.some(node.elements, ts.isSpreadElement)) {
+                return transformAndSpreadElements(node.elements, true, !!node.multiLine, !!node.elements.hasTrailingComma);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitCallExpression(node) {
+            if (ts.getEmitFlags(node) & 33554432) {
+                return visitTypeScriptClassWrapper(node);
+            }
+            var expression = ts.skipOuterExpressions(node.expression);
+            if (expression.kind === 102 ||
+                ts.isSuperProperty(expression) ||
+                ts.some(node.arguments, ts.isSpreadElement)) {
+                return visitCallExpressionWithPotentialCapturedThisAssignment(node, true);
+            }
+            return ts.updateCall(node, ts.visitNode(node.expression, callExpressionVisitor, ts.isExpression), undefined, ts.visitNodes(node.arguments, visitor, ts.isExpression));
+        }
+        function visitTypeScriptClassWrapper(node) {
+            var body = ts.cast(ts.cast(ts.skipOuterExpressions(node.expression), ts.isArrowFunction).body, ts.isBlock);
+            var isVariableStatementWithInitializer = function (stmt) { return ts.isVariableStatement(stmt) && !!ts.first(stmt.declarationList.declarations).initializer; };
+            var savedConvertedLoopState = convertedLoopState;
+            convertedLoopState = undefined;
+            var bodyStatements = ts.visitNodes(body.statements, visitor, ts.isStatement);
+            convertedLoopState = savedConvertedLoopState;
+            var classStatements = ts.filter(bodyStatements, isVariableStatementWithInitializer);
+            var remainingStatements = ts.filter(bodyStatements, function (stmt) { return !isVariableStatementWithInitializer(stmt); });
+            var varStatement = ts.cast(ts.first(classStatements), ts.isVariableStatement);
+            var variable = varStatement.declarationList.declarations[0];
+            var initializer = ts.skipOuterExpressions(variable.initializer);
+            var aliasAssignment = ts.tryCast(initializer, ts.isAssignmentExpression);
+            var call = ts.cast(aliasAssignment ? ts.skipOuterExpressions(aliasAssignment.right) : initializer, ts.isCallExpression);
+            var func = ts.cast(ts.skipOuterExpressions(call.expression), ts.isFunctionExpression);
+            var funcStatements = func.body.statements;
+            var classBodyStart = 0;
+            var classBodyEnd = -1;
+            var statements = [];
+            if (aliasAssignment) {
+                var extendsCall = ts.tryCast(funcStatements[classBodyStart], ts.isExpressionStatement);
+                if (extendsCall) {
+                    statements.push(extendsCall);
+                    classBodyStart++;
+                }
+                statements.push(funcStatements[classBodyStart]);
+                classBodyStart++;
+                statements.push(ts.createExpressionStatement(ts.createAssignment(aliasAssignment.left, ts.cast(variable.name, ts.isIdentifier))));
+            }
+            while (!ts.isReturnStatement(ts.elementAt(funcStatements, classBodyEnd))) {
+                classBodyEnd--;
+            }
+            ts.addRange(statements, funcStatements, classBodyStart, classBodyEnd);
+            if (classBodyEnd < -1) {
+                ts.addRange(statements, funcStatements, classBodyEnd + 1);
+            }
+            ts.addRange(statements, remainingStatements);
+            ts.addRange(statements, classStatements, 1);
+            return ts.recreateOuterExpressions(node.expression, ts.recreateOuterExpressions(variable.initializer, ts.recreateOuterExpressions(aliasAssignment && aliasAssignment.right, ts.updateCall(call, ts.recreateOuterExpressions(call.expression, ts.updateFunctionExpression(func, undefined, undefined, undefined, undefined, func.parameters, undefined, ts.updateBlock(func.body, statements))), undefined, call.arguments))));
+        }
+        function visitImmediateSuperCallInBody(node) {
+            return visitCallExpressionWithPotentialCapturedThisAssignment(node, false);
+        }
+        function visitCallExpressionWithPotentialCapturedThisAssignment(node, assignToCapturedThis) {
+            if (node.transformFlags & 8192 ||
+                node.expression.kind === 102 ||
+                ts.isSuperProperty(ts.skipOuterExpressions(node.expression))) {
+                var _a = ts.createCallBinding(node.expression, hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
+                if (node.expression.kind === 102) {
+                    ts.setEmitFlags(thisArg, 4);
+                }
+                var resultingCall = void 0;
+                if (node.transformFlags & 8192) {
+                    resultingCall = ts.createFunctionApply(ts.visitNode(target, callExpressionVisitor, ts.isExpression), node.expression.kind === 102 ? thisArg : ts.visitNode(thisArg, visitor, ts.isExpression), transformAndSpreadElements(node.arguments, false, false, false));
+                }
+                else {
+                    resultingCall = ts.createFunctionCall(ts.visitNode(target, callExpressionVisitor, ts.isExpression), node.expression.kind === 102 ? thisArg : ts.visitNode(thisArg, visitor, ts.isExpression), ts.visitNodes(node.arguments, visitor, ts.isExpression), node);
+                }
+                if (node.expression.kind === 102) {
+                    var initializer = ts.createLogicalOr(resultingCall, createActualThis());
+                    resultingCall = assignToCapturedThis
+                        ? ts.createAssignment(ts.createFileLevelUniqueName("_this"), initializer)
+                        : initializer;
+                }
+                return ts.setOriginalNode(resultingCall, node);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitNewExpression(node) {
+            if (ts.some(node.arguments, ts.isSpreadElement)) {
+                var _a = ts.createCallBinding(ts.createPropertyAccess(node.expression, "bind"), hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
+                return ts.createNew(ts.createFunctionApply(ts.visitNode(target, visitor, ts.isExpression), thisArg, transformAndSpreadElements(ts.createNodeArray(__spreadArrays([ts.createVoidZero()], node.arguments)), false, false, false)), undefined, []);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function transformAndSpreadElements(elements, needsUniqueCopy, multiLine, hasTrailingComma) {
+            var numElements = elements.length;
+            var segments = ts.flatten(ts.spanMap(elements, partitionSpread, function (partition, visitPartition, _start, end) {
+                return visitPartition(partition, multiLine, hasTrailingComma && end === numElements);
+            }));
+            if (compilerOptions.downlevelIteration) {
+                if (segments.length === 1) {
+                    var firstSegment = segments[0];
+                    if (isCallToHelper(firstSegment, "___spread")) {
+                        return segments[0];
+                    }
+                }
+                return ts.createSpreadHelper(context, segments);
+            }
+            else {
+                if (segments.length === 1) {
+                    var firstSegment = segments[0];
+                    if (!needsUniqueCopy
+                        || isPackedArrayLiteral(firstSegment)
+                        || isCallToHelper(firstSegment, "___spreadArrays")) {
+                        return segments[0];
+                    }
+                }
+                return ts.createSpreadArraysHelper(context, segments);
+            }
+        }
+        function isPackedElement(node) {
+            return !ts.isOmittedExpression(node);
+        }
+        function isPackedArrayLiteral(node) {
+            return ts.isArrayLiteralExpression(node) && ts.every(node.elements, isPackedElement);
+        }
+        function isCallToHelper(firstSegment, helperName) {
+            return ts.isCallExpression(firstSegment)
+                && ts.isIdentifier(firstSegment.expression)
+                && (ts.getEmitFlags(firstSegment.expression) & 4096)
+                && firstSegment.expression.escapedText === helperName;
+        }
+        function partitionSpread(node) {
+            return ts.isSpreadElement(node)
+                ? visitSpanOfSpreads
+                : visitSpanOfNonSpreads;
+        }
+        function visitSpanOfSpreads(chunk) {
+            return ts.map(chunk, visitExpressionOfSpread);
+        }
+        function visitSpanOfNonSpreads(chunk, multiLine, hasTrailingComma) {
+            return ts.createArrayLiteral(ts.visitNodes(ts.createNodeArray(chunk, hasTrailingComma), visitor, ts.isExpression), multiLine);
+        }
+        function visitSpreadElement(node) {
+            return ts.visitNode(node.expression, visitor, ts.isExpression);
+        }
+        function visitExpressionOfSpread(node) {
+            return ts.visitNode(node.expression, visitor, ts.isExpression);
+        }
+        function visitTemplateLiteral(node) {
+            return ts.setTextRange(ts.createLiteral(node.text), node);
+        }
+        function visitStringLiteral(node) {
+            if (node.hasExtendedUnicodeEscape) {
+                return ts.setTextRange(ts.createLiteral(node.text), node);
+            }
+            return node;
+        }
+        function visitNumericLiteral(node) {
+            if (node.numericLiteralFlags & 384) {
+                return ts.setTextRange(ts.createNumericLiteral(node.text), node);
+            }
+            return node;
+        }
+        function visitTaggedTemplateExpression(node) {
+            return ts.processTaggedTemplateExpression(context, node, visitor, currentSourceFile, recordTaggedTemplateString, ts.ProcessLevel.All);
+        }
+        function visitTemplateExpression(node) {
+            var expressions = [];
+            addTemplateHead(expressions, node);
+            addTemplateSpans(expressions, node);
+            var expression = ts.reduceLeft(expressions, ts.createAdd);
+            if (ts.nodeIsSynthesized(expression)) {
+                expression.pos = node.pos;
+                expression.end = node.end;
+            }
+            return expression;
+        }
+        function shouldAddTemplateHead(node) {
+            ts.Debug.assert(node.templateSpans.length !== 0);
+            return node.head.text.length !== 0 || node.templateSpans[0].literal.text.length === 0;
+        }
+        function addTemplateHead(expressions, node) {
+            if (!shouldAddTemplateHead(node)) {
+                return;
+            }
+            expressions.push(ts.createLiteral(node.head.text));
+        }
+        function addTemplateSpans(expressions, node) {
+            for (var _i = 0, _a = node.templateSpans; _i < _a.length; _i++) {
+                var span = _a[_i];
+                expressions.push(ts.visitNode(span.expression, visitor, ts.isExpression));
+                if (span.literal.text.length !== 0) {
+                    expressions.push(ts.createLiteral(span.literal.text));
+                }
+            }
+        }
+        function visitSuperKeyword(isExpressionOfCall) {
+            return hierarchyFacts & 8 && !isExpressionOfCall ? ts.createPropertyAccess(ts.createFileLevelUniqueName("_super"), "prototype") :
+                ts.createFileLevelUniqueName("_super");
+        }
+        function visitMetaProperty(node) {
+            if (node.keywordToken === 99 && node.name.escapedText === "target") {
+                hierarchyFacts |= 16384;
+                return ts.createFileLevelUniqueName("_newTarget");
+            }
+            return node;
+        }
+        function onEmitNode(hint, node, emitCallback) {
+            if (enabledSubstitutions & 1 && ts.isFunctionLike(node)) {
+                var ancestorFacts = enterSubtree(16286, ts.getEmitFlags(node) & 8
+                    ? 65 | 16
+                    : 65);
+                previousOnEmitNode(hint, node, emitCallback);
+                exitSubtree(ancestorFacts, 0, 0);
+                return;
+            }
+            previousOnEmitNode(hint, node, emitCallback);
+        }
+        function enableSubstitutionsForBlockScopedBindings() {
+            if ((enabledSubstitutions & 2) === 0) {
+                enabledSubstitutions |= 2;
+                context.enableSubstitution(75);
+            }
+        }
+        function enableSubstitutionsForCapturedThis() {
+            if ((enabledSubstitutions & 1) === 0) {
+                enabledSubstitutions |= 1;
+                context.enableSubstitution(104);
+                context.enableEmitNotification(162);
+                context.enableEmitNotification(161);
+                context.enableEmitNotification(163);
+                context.enableEmitNotification(164);
+                context.enableEmitNotification(202);
+                context.enableEmitNotification(201);
+                context.enableEmitNotification(244);
+            }
+        }
+        function onSubstituteNode(hint, node) {
+            node = previousOnSubstituteNode(hint, node);
+            if (hint === 1) {
+                return substituteExpression(node);
+            }
+            if (ts.isIdentifier(node)) {
+                return substituteIdentifier(node);
+            }
+            return node;
+        }
+        function substituteIdentifier(node) {
+            if (enabledSubstitutions & 2 && !ts.isInternalName(node)) {
+                var original = ts.getParseTreeNode(node, ts.isIdentifier);
+                if (original && isNameOfDeclarationWithCollidingName(original)) {
+                    return ts.setTextRange(ts.getGeneratedNameForNode(original), node);
+                }
+            }
+            return node;
+        }
+        function isNameOfDeclarationWithCollidingName(node) {
+            switch (node.parent.kind) {
+                case 191:
+                case 245:
+                case 248:
+                case 242:
+                    return node.parent.name === node
+                        && resolver.isDeclarationWithCollidingName(node.parent);
+            }
+            return false;
+        }
+        function substituteExpression(node) {
+            switch (node.kind) {
+                case 75:
+                    return substituteExpressionIdentifier(node);
+                case 104:
+                    return substituteThisKeyword(node);
+            }
+            return node;
+        }
+        function substituteExpressionIdentifier(node) {
+            if (enabledSubstitutions & 2 && !ts.isInternalName(node)) {
+                var declaration = resolver.getReferencedDeclarationWithCollidingName(node);
+                if (declaration && !(ts.isClassLike(declaration) && isPartOfClassBody(declaration, node))) {
+                    return ts.setTextRange(ts.getGeneratedNameForNode(ts.getNameOfDeclaration(declaration)), node);
+                }
+            }
+            return node;
+        }
+        function isPartOfClassBody(declaration, node) {
+            var currentNode = ts.getParseTreeNode(node);
+            if (!currentNode || currentNode === declaration || currentNode.end <= declaration.pos || currentNode.pos >= declaration.end) {
+                return false;
+            }
+            var blockScope = ts.getEnclosingBlockScopeContainer(declaration);
+            while (currentNode) {
+                if (currentNode === blockScope || currentNode === declaration) {
+                    return false;
+                }
+                if (ts.isClassElement(currentNode) && currentNode.parent === declaration) {
+                    return true;
+                }
+                currentNode = currentNode.parent;
+            }
+            return false;
+        }
+        function substituteThisKeyword(node) {
+            if (enabledSubstitutions & 1
+                && hierarchyFacts & 16) {
+                return ts.setTextRange(ts.createFileLevelUniqueName("_this"), node);
+            }
+            return node;
+        }
+        function getClassMemberPrefix(node, member) {
+            return ts.hasModifier(member, 32)
+                ? ts.getInternalName(node)
+                : ts.createPropertyAccess(ts.getInternalName(node), "prototype");
+        }
+        function hasSynthesizedDefaultSuperCall(constructor, hasExtendsClause) {
+            if (!constructor || !hasExtendsClause) {
+                return false;
+            }
+            if (ts.some(constructor.parameters)) {
+                return false;
+            }
+            var statement = ts.firstOrUndefined(constructor.body.statements);
+            if (!statement || !ts.nodeIsSynthesized(statement) || statement.kind !== 226) {
+                return false;
+            }
+            var statementExpression = statement.expression;
+            if (!ts.nodeIsSynthesized(statementExpression) || statementExpression.kind !== 196) {
+                return false;
+            }
+            var callTarget = statementExpression.expression;
+            if (!ts.nodeIsSynthesized(callTarget) || callTarget.kind !== 102) {
+                return false;
+            }
+            var callArgument = ts.singleOrUndefined(statementExpression.arguments);
+            if (!callArgument || !ts.nodeIsSynthesized(callArgument) || callArgument.kind !== 213) {
+                return false;
+            }
+            var expression = callArgument.expression;
+            return ts.isIdentifier(expression) && expression.escapedText === "arguments";
+        }
+    }
+    ts.transformES2015 = transformES2015;
+    function createExtendsHelper(context, name) {
+        context.requestEmitHelper(ts.extendsHelper);
+        return ts.createCall(ts.getUnscopedHelperName("__extends"), undefined, [
+            name,
+            ts.createFileLevelUniqueName("_super")
+        ]);
+    }
+    ts.extendsHelper = {
+        name: "typescript:extends",
+        importName: "__extends",
+        scoped: false,
+        priority: 0,
+        text: "\n            var __extends = (this && this.__extends) || (function () {\n                var extendStatics = function (d, b) {\n                    extendStatics = Object.setPrototypeOf ||\n                        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n                        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n                    return extendStatics(d, b);\n                };\n\n                return function (d, b) {\n                    extendStatics(d, b);\n                    function __() { this.constructor = d; }\n                    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n                };\n            })();"
+    };
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformES5(context) {
+        var compilerOptions = context.getCompilerOptions();
+        var previousOnEmitNode;
+        var noSubstitution;
+        if (compilerOptions.jsx === 1 || compilerOptions.jsx === 3) {
+            previousOnEmitNode = context.onEmitNode;
+            context.onEmitNode = onEmitNode;
+            context.enableEmitNotification(268);
+            context.enableEmitNotification(269);
+            context.enableEmitNotification(267);
+            noSubstitution = [];
+        }
+        var previousOnSubstituteNode = context.onSubstituteNode;
+        context.onSubstituteNode = onSubstituteNode;
+        context.enableSubstitution(194);
+        context.enableSubstitution(281);
+        return ts.chainBundle(transformSourceFile);
+        function transformSourceFile(node) {
+            return node;
+        }
+        function onEmitNode(hint, node, emitCallback) {
+            switch (node.kind) {
+                case 268:
+                case 269:
+                case 267:
+                    var tagName = node.tagName;
+                    noSubstitution[ts.getOriginalNodeId(tagName)] = true;
+                    break;
+            }
+            previousOnEmitNode(hint, node, emitCallback);
+        }
+        function onSubstituteNode(hint, node) {
+            if (node.id && noSubstitution && noSubstitution[node.id]) {
+                return previousOnSubstituteNode(hint, node);
+            }
+            node = previousOnSubstituteNode(hint, node);
+            if (ts.isPropertyAccessExpression(node)) {
+                return substitutePropertyAccessExpression(node);
+            }
+            else if (ts.isPropertyAssignment(node)) {
+                return substitutePropertyAssignment(node);
+            }
+            return node;
+        }
+        function substitutePropertyAccessExpression(node) {
+            if (ts.isPrivateIdentifier(node.name)) {
+                return node;
+            }
+            var literalName = trySubstituteReservedName(node.name);
+            if (literalName) {
+                return ts.setTextRange(ts.createElementAccess(node.expression, literalName), node);
+            }
+            return node;
+        }
+        function substitutePropertyAssignment(node) {
+            var literalName = ts.isIdentifier(node.name) && trySubstituteReservedName(node.name);
+            if (literalName) {
+                return ts.updatePropertyAssignment(node, literalName, node.initializer);
+            }
+            return node;
+        }
+        function trySubstituteReservedName(name) {
+            var token = name.originalKeywordKind || (ts.nodeIsSynthesized(name) ? ts.stringToToken(ts.idText(name)) : undefined);
+            if (token !== undefined && token >= 77 && token <= 112) {
+                return ts.setTextRange(ts.createLiteral(name), name);
+            }
+            return undefined;
+        }
+    }
+    ts.transformES5 = transformES5;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function getInstructionName(instruction) {
+        switch (instruction) {
+            case 2: return "return";
+            case 3: return "break";
+            case 4: return "yield";
+            case 5: return "yield*";
+            case 7: return "endfinally";
+            default: return undefined;
+        }
+    }
+    function transformGenerators(context) {
+        var resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistFunctionDeclaration = context.hoistFunctionDeclaration, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var compilerOptions = context.getCompilerOptions();
+        var languageVersion = ts.getEmitScriptTarget(compilerOptions);
+        var resolver = context.getEmitResolver();
+        var previousOnSubstituteNode = context.onSubstituteNode;
+        context.onSubstituteNode = onSubstituteNode;
+        var renamedCatchVariables;
+        var renamedCatchVariableDeclarations;
+        var inGeneratorFunctionBody;
+        var inStatementContainingYield;
+        var blocks;
+        var blockOffsets;
+        var blockActions;
+        var blockStack;
+        var labelOffsets;
+        var labelExpressions;
+        var nextLabelId = 1;
+        var operations;
+        var operationArguments;
+        var operationLocations;
+        var state;
+        var blockIndex = 0;
+        var labelNumber = 0;
+        var labelNumbers;
+        var lastOperationWasAbrupt;
+        var lastOperationWasCompletion;
+        var clauses;
+        var statements;
+        var exceptionBlockStack;
+        var currentExceptionBlock;
+        var withBlockStack;
+        return ts.chainBundle(transformSourceFile);
+        function transformSourceFile(node) {
+            if (node.isDeclarationFile || (node.transformFlags & 512) === 0) {
+                return node;
+            }
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            return visited;
+        }
+        function visitor(node) {
+            var transformFlags = node.transformFlags;
+            if (inStatementContainingYield) {
+                return visitJavaScriptInStatementContainingYield(node);
+            }
+            else if (inGeneratorFunctionBody) {
+                return visitJavaScriptInGeneratorFunctionBody(node);
+            }
+            else if (ts.isFunctionLikeDeclaration(node) && node.asteriskToken) {
+                return visitGenerator(node);
+            }
+            else if (transformFlags & 512) {
+                return ts.visitEachChild(node, visitor, context);
+            }
+            else {
+                return node;
+            }
+        }
+        function visitJavaScriptInStatementContainingYield(node) {
+            switch (node.kind) {
+                case 228:
+                    return visitDoStatement(node);
+                case 229:
+                    return visitWhileStatement(node);
+                case 237:
+                    return visitSwitchStatement(node);
+                case 238:
+                    return visitLabeledStatement(node);
+                default:
+                    return visitJavaScriptInGeneratorFunctionBody(node);
+            }
+        }
+        function visitJavaScriptInGeneratorFunctionBody(node) {
+            switch (node.kind) {
+                case 244:
+                    return visitFunctionDeclaration(node);
+                case 201:
+                    return visitFunctionExpression(node);
+                case 163:
+                case 164:
+                    return visitAccessorDeclaration(node);
+                case 225:
+                    return visitVariableStatement(node);
+                case 230:
+                    return visitForStatement(node);
+                case 231:
+                    return visitForInStatement(node);
+                case 234:
+                    return visitBreakStatement(node);
+                case 233:
+                    return visitContinueStatement(node);
+                case 235:
+                    return visitReturnStatement(node);
+                default:
+                    if (node.transformFlags & 262144) {
+                        return visitJavaScriptContainingYield(node);
+                    }
+                    else if (node.transformFlags & (512 | 1048576)) {
+                        return ts.visitEachChild(node, visitor, context);
+                    }
+                    else {
+                        return node;
+                    }
+            }
+        }
+        function visitJavaScriptContainingYield(node) {
+            switch (node.kind) {
+                case 209:
+                    return visitBinaryExpression(node);
+                case 210:
+                    return visitConditionalExpression(node);
+                case 212:
+                    return visitYieldExpression(node);
+                case 192:
+                    return visitArrayLiteralExpression(node);
+                case 193:
+                    return visitObjectLiteralExpression(node);
+                case 195:
+                    return visitElementAccessExpression(node);
+                case 196:
+                    return visitCallExpression(node);
+                case 197:
+                    return visitNewExpression(node);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function visitGenerator(node) {
+            switch (node.kind) {
+                case 244:
+                    return visitFunctionDeclaration(node);
+                case 201:
+                    return visitFunctionExpression(node);
+                default:
+                    return ts.Debug.failBadSyntaxKind(node);
+            }
+        }
+        function visitFunctionDeclaration(node) {
+            if (node.asteriskToken) {
+                node = ts.setOriginalNode(ts.setTextRange(ts.createFunctionDeclaration(undefined, node.modifiers, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformGeneratorFunctionBody(node.body)), node), node);
+            }
+            else {
+                var savedInGeneratorFunctionBody = inGeneratorFunctionBody;
+                var savedInStatementContainingYield = inStatementContainingYield;
+                inGeneratorFunctionBody = false;
+                inStatementContainingYield = false;
+                node = ts.visitEachChild(node, visitor, context);
+                inGeneratorFunctionBody = savedInGeneratorFunctionBody;
+                inStatementContainingYield = savedInStatementContainingYield;
+            }
+            if (inGeneratorFunctionBody) {
+                hoistFunctionDeclaration(node);
+                return undefined;
+            }
+            else {
+                return node;
+            }
+        }
+        function visitFunctionExpression(node) {
+            if (node.asteriskToken) {
+                node = ts.setOriginalNode(ts.setTextRange(ts.createFunctionExpression(undefined, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformGeneratorFunctionBody(node.body)), node), node);
+            }
+            else {
+                var savedInGeneratorFunctionBody = inGeneratorFunctionBody;
+                var savedInStatementContainingYield = inStatementContainingYield;
+                inGeneratorFunctionBody = false;
+                inStatementContainingYield = false;
+                node = ts.visitEachChild(node, visitor, context);
+                inGeneratorFunctionBody = savedInGeneratorFunctionBody;
+                inStatementContainingYield = savedInStatementContainingYield;
+            }
+            return node;
+        }
+        function visitAccessorDeclaration(node) {
+            var savedInGeneratorFunctionBody = inGeneratorFunctionBody;
+            var savedInStatementContainingYield = inStatementContainingYield;
+            inGeneratorFunctionBody = false;
+            inStatementContainingYield = false;
+            node = ts.visitEachChild(node, visitor, context);
+            inGeneratorFunctionBody = savedInGeneratorFunctionBody;
+            inStatementContainingYield = savedInStatementContainingYield;
+            return node;
+        }
+        function transformGeneratorFunctionBody(body) {
+            var statements = [];
+            var savedInGeneratorFunctionBody = inGeneratorFunctionBody;
+            var savedInStatementContainingYield = inStatementContainingYield;
+            var savedBlocks = blocks;
+            var savedBlockOffsets = blockOffsets;
+            var savedBlockActions = blockActions;
+            var savedBlockStack = blockStack;
+            var savedLabelOffsets = labelOffsets;
+            var savedLabelExpressions = labelExpressions;
+            var savedNextLabelId = nextLabelId;
+            var savedOperations = operations;
+            var savedOperationArguments = operationArguments;
+            var savedOperationLocations = operationLocations;
+            var savedState = state;
+            inGeneratorFunctionBody = true;
+            inStatementContainingYield = false;
+            blocks = undefined;
+            blockOffsets = undefined;
+            blockActions = undefined;
+            blockStack = undefined;
+            labelOffsets = undefined;
+            labelExpressions = undefined;
+            nextLabelId = 1;
+            operations = undefined;
+            operationArguments = undefined;
+            operationLocations = undefined;
+            state = ts.createTempVariable(undefined);
+            resumeLexicalEnvironment();
+            var statementOffset = ts.addPrologue(statements, body.statements, false, visitor);
+            transformAndEmitStatements(body.statements, statementOffset);
+            var buildResult = build();
+            ts.insertStatementsAfterStandardPrologue(statements, endLexicalEnvironment());
+            statements.push(ts.createReturn(buildResult));
+            inGeneratorFunctionBody = savedInGeneratorFunctionBody;
+            inStatementContainingYield = savedInStatementContainingYield;
+            blocks = savedBlocks;
+            blockOffsets = savedBlockOffsets;
+            blockActions = savedBlockActions;
+            blockStack = savedBlockStack;
+            labelOffsets = savedLabelOffsets;
+            labelExpressions = savedLabelExpressions;
+            nextLabelId = savedNextLabelId;
+            operations = savedOperations;
+            operationArguments = savedOperationArguments;
+            operationLocations = savedOperationLocations;
+            state = savedState;
+            return ts.setTextRange(ts.createBlock(statements, body.multiLine), body);
+        }
+        function visitVariableStatement(node) {
+            if (node.transformFlags & 262144) {
+                transformAndEmitVariableDeclarationList(node.declarationList);
+                return undefined;
+            }
+            else {
+                if (ts.getEmitFlags(node) & 1048576) {
+                    return node;
+                }
+                for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
+                    var variable = _a[_i];
+                    hoistVariableDeclaration(variable.name);
+                }
+                var variables = ts.getInitializedVariables(node.declarationList);
+                if (variables.length === 0) {
+                    return undefined;
+                }
+                return ts.setSourceMapRange(ts.createExpressionStatement(ts.inlineExpressions(ts.map(variables, transformInitializedVariable))), node);
+            }
+        }
+        function visitBinaryExpression(node) {
+            var assoc = ts.getExpressionAssociativity(node);
+            switch (assoc) {
+                case 0:
+                    return visitLeftAssociativeBinaryExpression(node);
+                case 1:
+                    return visitRightAssociativeBinaryExpression(node);
+                default:
+                    return ts.Debug.assertNever(assoc);
+            }
+        }
+        function visitRightAssociativeBinaryExpression(node) {
+            var left = node.left, right = node.right;
+            if (containsYield(right)) {
+                var target = void 0;
+                switch (left.kind) {
+                    case 194:
+                        target = ts.updatePropertyAccess(left, cacheExpression(ts.visitNode(left.expression, visitor, ts.isLeftHandSideExpression)), left.name);
+                        break;
+                    case 195:
+                        target = ts.updateElementAccess(left, cacheExpression(ts.visitNode(left.expression, visitor, ts.isLeftHandSideExpression)), cacheExpression(ts.visitNode(left.argumentExpression, visitor, ts.isExpression)));
+                        break;
+                    default:
+                        target = ts.visitNode(left, visitor, ts.isExpression);
+                        break;
+                }
+                var operator = node.operatorToken.kind;
+                if (ts.isCompoundAssignment(operator)) {
+                    return ts.setTextRange(ts.createAssignment(target, ts.setTextRange(ts.createBinary(cacheExpression(target), ts.getNonAssignmentOperatorForCompoundAssignment(operator), ts.visitNode(right, visitor, ts.isExpression)), node)), node);
+                }
+                else {
+                    return ts.updateBinary(node, target, ts.visitNode(right, visitor, ts.isExpression));
+                }
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitLeftAssociativeBinaryExpression(node) {
+            if (containsYield(node.right)) {
+                if (ts.isLogicalOperator(node.operatorToken.kind)) {
+                    return visitLogicalBinaryExpression(node);
+                }
+                else if (node.operatorToken.kind === 27) {
+                    return visitCommaExpression(node);
+                }
+                var clone_6 = ts.getMutableClone(node);
+                clone_6.left = cacheExpression(ts.visitNode(node.left, visitor, ts.isExpression));
+                clone_6.right = ts.visitNode(node.right, visitor, ts.isExpression);
+                return clone_6;
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitLogicalBinaryExpression(node) {
+            var resultLabel = defineLabel();
+            var resultLocal = declareLocal();
+            emitAssignment(resultLocal, ts.visitNode(node.left, visitor, ts.isExpression), node.left);
+            if (node.operatorToken.kind === 55) {
+                emitBreakWhenFalse(resultLabel, resultLocal, node.left);
+            }
+            else {
+                emitBreakWhenTrue(resultLabel, resultLocal, node.left);
+            }
+            emitAssignment(resultLocal, ts.visitNode(node.right, visitor, ts.isExpression), node.right);
+            markLabel(resultLabel);
+            return resultLocal;
+        }
+        function visitCommaExpression(node) {
+            var pendingExpressions = [];
+            visit(node.left);
+            visit(node.right);
+            return ts.inlineExpressions(pendingExpressions);
+            function visit(node) {
+                if (ts.isBinaryExpression(node) && node.operatorToken.kind === 27) {
+                    visit(node.left);
+                    visit(node.right);
+                }
+                else {
+                    if (containsYield(node) && pendingExpressions.length > 0) {
+                        emitWorker(1, [ts.createExpressionStatement(ts.inlineExpressions(pendingExpressions))]);
+                        pendingExpressions = [];
+                    }
+                    pendingExpressions.push(ts.visitNode(node, visitor, ts.isExpression));
+                }
+            }
+        }
+        function visitConditionalExpression(node) {
+            if (containsYield(node.whenTrue) || containsYield(node.whenFalse)) {
+                var whenFalseLabel = defineLabel();
+                var resultLabel = defineLabel();
+                var resultLocal = declareLocal();
+                emitBreakWhenFalse(whenFalseLabel, ts.visitNode(node.condition, visitor, ts.isExpression), node.condition);
+                emitAssignment(resultLocal, ts.visitNode(node.whenTrue, visitor, ts.isExpression), node.whenTrue);
+                emitBreak(resultLabel);
+                markLabel(whenFalseLabel);
+                emitAssignment(resultLocal, ts.visitNode(node.whenFalse, visitor, ts.isExpression), node.whenFalse);
+                markLabel(resultLabel);
+                return resultLocal;
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitYieldExpression(node) {
+            var resumeLabel = defineLabel();
+            var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+            if (node.asteriskToken) {
+                var iterator = (ts.getEmitFlags(node.expression) & 8388608) === 0
+                    ? ts.createValuesHelper(context, expression, node)
+                    : expression;
+                emitYieldStar(iterator, node);
+            }
+            else {
+                emitYield(expression, node);
+            }
+            markLabel(resumeLabel);
+            return createGeneratorResume(node);
+        }
+        function visitArrayLiteralExpression(node) {
+            return visitElements(node.elements, undefined, undefined, node.multiLine);
+        }
+        function visitElements(elements, leadingElement, location, multiLine) {
+            var numInitialElements = countInitialNodesWithoutYield(elements);
+            var temp;
+            if (numInitialElements > 0) {
+                temp = declareLocal();
+                var initialElements = ts.visitNodes(elements, visitor, ts.isExpression, 0, numInitialElements);
+                emitAssignment(temp, ts.createArrayLiteral(leadingElement
+                    ? __spreadArrays([leadingElement], initialElements) : initialElements));
+                leadingElement = undefined;
+            }
+            var expressions = ts.reduceLeft(elements, reduceElement, [], numInitialElements);
+            return temp
+                ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions, multiLine)])
+                : ts.setTextRange(ts.createArrayLiteral(leadingElement ? __spreadArrays([leadingElement], expressions) : expressions, multiLine), location);
+            function reduceElement(expressions, element) {
+                if (containsYield(element) && expressions.length > 0) {
+                    var hasAssignedTemp = temp !== undefined;
+                    if (!temp) {
+                        temp = declareLocal();
+                    }
+                    emitAssignment(temp, hasAssignedTemp
+                        ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions, multiLine)])
+                        : ts.createArrayLiteral(leadingElement ? __spreadArrays([leadingElement], expressions) : expressions, multiLine));
+                    leadingElement = undefined;
+                    expressions = [];
+                }
+                expressions.push(ts.visitNode(element, visitor, ts.isExpression));
+                return expressions;
+            }
+        }
+        function visitObjectLiteralExpression(node) {
+            var properties = node.properties;
+            var multiLine = node.multiLine;
+            var numInitialProperties = countInitialNodesWithoutYield(properties);
+            var temp = declareLocal();
+            emitAssignment(temp, ts.createObjectLiteral(ts.visitNodes(properties, visitor, ts.isObjectLiteralElementLike, 0, numInitialProperties), multiLine));
+            var expressions = ts.reduceLeft(properties, reduceProperty, [], numInitialProperties);
+            expressions.push(multiLine ? ts.startOnNewLine(ts.getMutableClone(temp)) : temp);
+            return ts.inlineExpressions(expressions);
+            function reduceProperty(expressions, property) {
+                if (containsYield(property) && expressions.length > 0) {
+                    emitStatement(ts.createExpressionStatement(ts.inlineExpressions(expressions)));
+                    expressions = [];
+                }
+                var expression = ts.createExpressionForObjectLiteralElementLike(node, property, temp);
+                var visited = ts.visitNode(expression, visitor, ts.isExpression);
+                if (visited) {
+                    if (multiLine) {
+                        ts.startOnNewLine(visited);
+                    }
+                    expressions.push(visited);
+                }
+                return expressions;
+            }
+        }
+        function visitElementAccessExpression(node) {
+            if (containsYield(node.argumentExpression)) {
+                var clone_7 = ts.getMutableClone(node);
+                clone_7.expression = cacheExpression(ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression));
+                clone_7.argumentExpression = ts.visitNode(node.argumentExpression, visitor, ts.isExpression);
+                return clone_7;
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitCallExpression(node) {
+            if (!ts.isImportCall(node) && ts.forEach(node.arguments, containsYield)) {
+                var _a = ts.createCallBinding(node.expression, hoistVariableDeclaration, languageVersion, true), target = _a.target, thisArg = _a.thisArg;
+                return ts.setOriginalNode(ts.createFunctionApply(cacheExpression(ts.visitNode(target, visitor, ts.isLeftHandSideExpression)), thisArg, visitElements(node.arguments), node), node);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitNewExpression(node) {
+            if (ts.forEach(node.arguments, containsYield)) {
+                var _a = ts.createCallBinding(ts.createPropertyAccess(node.expression, "bind"), hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
+                return ts.setOriginalNode(ts.setTextRange(ts.createNew(ts.createFunctionApply(cacheExpression(ts.visitNode(target, visitor, ts.isExpression)), thisArg, visitElements(node.arguments, ts.createVoidZero())), undefined, []), node), node);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function transformAndEmitStatements(statements, start) {
+            if (start === void 0) { start = 0; }
+            var numStatements = statements.length;
+            for (var i = start; i < numStatements; i++) {
+                transformAndEmitStatement(statements[i]);
+            }
+        }
+        function transformAndEmitEmbeddedStatement(node) {
+            if (ts.isBlock(node)) {
+                transformAndEmitStatements(node.statements);
+            }
+            else {
+                transformAndEmitStatement(node);
+            }
+        }
+        function transformAndEmitStatement(node) {
+            var savedInStatementContainingYield = inStatementContainingYield;
+            if (!inStatementContainingYield) {
+                inStatementContainingYield = containsYield(node);
+            }
+            transformAndEmitStatementWorker(node);
+            inStatementContainingYield = savedInStatementContainingYield;
+        }
+        function transformAndEmitStatementWorker(node) {
+            switch (node.kind) {
+                case 223:
+                    return transformAndEmitBlock(node);
+                case 226:
+                    return transformAndEmitExpressionStatement(node);
+                case 227:
+                    return transformAndEmitIfStatement(node);
+                case 228:
+                    return transformAndEmitDoStatement(node);
+                case 229:
+                    return transformAndEmitWhileStatement(node);
+                case 230:
+                    return transformAndEmitForStatement(node);
+                case 231:
+                    return transformAndEmitForInStatement(node);
+                case 233:
+                    return transformAndEmitContinueStatement(node);
+                case 234:
+                    return transformAndEmitBreakStatement(node);
+                case 235:
+                    return transformAndEmitReturnStatement(node);
+                case 236:
+                    return transformAndEmitWithStatement(node);
+                case 237:
+                    return transformAndEmitSwitchStatement(node);
+                case 238:
+                    return transformAndEmitLabeledStatement(node);
+                case 239:
+                    return transformAndEmitThrowStatement(node);
+                case 240:
+                    return transformAndEmitTryStatement(node);
+                default:
+                    return emitStatement(ts.visitNode(node, visitor, ts.isStatement));
+            }
+        }
+        function transformAndEmitBlock(node) {
+            if (containsYield(node)) {
+                transformAndEmitStatements(node.statements);
+            }
+            else {
+                emitStatement(ts.visitNode(node, visitor, ts.isStatement));
+            }
+        }
+        function transformAndEmitExpressionStatement(node) {
+            emitStatement(ts.visitNode(node, visitor, ts.isStatement));
+        }
+        function transformAndEmitVariableDeclarationList(node) {
+            for (var _i = 0, _a = node.declarations; _i < _a.length; _i++) {
+                var variable = _a[_i];
+                var name = ts.getSynthesizedClone(variable.name);
+                ts.setCommentRange(name, variable.name);
+                hoistVariableDeclaration(name);
+            }
+            var variables = ts.getInitializedVariables(node);
+            var numVariables = variables.length;
+            var variablesWritten = 0;
+            var pendingExpressions = [];
+            while (variablesWritten < numVariables) {
+                for (var i = variablesWritten; i < numVariables; i++) {
+                    var variable = variables[i];
+                    if (containsYield(variable.initializer) && pendingExpressions.length > 0) {
+                        break;
+                    }
+                    pendingExpressions.push(transformInitializedVariable(variable));
+                }
+                if (pendingExpressions.length) {
+                    emitStatement(ts.createExpressionStatement(ts.inlineExpressions(pendingExpressions)));
+                    variablesWritten += pendingExpressions.length;
+                    pendingExpressions = [];
+                }
+            }
+            return undefined;
+        }
+        function transformInitializedVariable(node) {
+            return ts.setSourceMapRange(ts.createAssignment(ts.setSourceMapRange(ts.getSynthesizedClone(node.name), node.name), ts.visitNode(node.initializer, visitor, ts.isExpression)), node);
+        }
+        function transformAndEmitIfStatement(node) {
+            if (containsYield(node)) {
+                if (containsYield(node.thenStatement) || containsYield(node.elseStatement)) {
+                    var endLabel = defineLabel();
+                    var elseLabel = node.elseStatement ? defineLabel() : undefined;
+                    emitBreakWhenFalse(node.elseStatement ? elseLabel : endLabel, ts.visitNode(node.expression, visitor, ts.isExpression), node.expression);
+                    transformAndEmitEmbeddedStatement(node.thenStatement);
+                    if (node.elseStatement) {
+                        emitBreak(endLabel);
+                        markLabel(elseLabel);
+                        transformAndEmitEmbeddedStatement(node.elseStatement);
+                    }
+                    markLabel(endLabel);
+                }
+                else {
+                    emitStatement(ts.visitNode(node, visitor, ts.isStatement));
+                }
+            }
+            else {
+                emitStatement(ts.visitNode(node, visitor, ts.isStatement));
+            }
+        }
+        function transformAndEmitDoStatement(node) {
+            if (containsYield(node)) {
+                var conditionLabel = defineLabel();
+                var loopLabel = defineLabel();
+                beginLoopBlock(conditionLabel);
+                markLabel(loopLabel);
+                transformAndEmitEmbeddedStatement(node.statement);
+                markLabel(conditionLabel);
+                emitBreakWhenTrue(loopLabel, ts.visitNode(node.expression, visitor, ts.isExpression));
+                endLoopBlock();
+            }
+            else {
+                emitStatement(ts.visitNode(node, visitor, ts.isStatement));
+            }
+        }
+        function visitDoStatement(node) {
+            if (inStatementContainingYield) {
+                beginScriptLoopBlock();
+                node = ts.visitEachChild(node, visitor, context);
+                endLoopBlock();
+                return node;
+            }
+            else {
+                return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function transformAndEmitWhileStatement(node) {
+            if (containsYield(node)) {
+                var loopLabel = defineLabel();
+                var endLabel = beginLoopBlock(loopLabel);
+                markLabel(loopLabel);
+                emitBreakWhenFalse(endLabel, ts.visitNode(node.expression, visitor, ts.isExpression));
+                transformAndEmitEmbeddedStatement(node.statement);
+                emitBreak(loopLabel);
+                endLoopBlock();
+            }
+            else {
+                emitStatement(ts.visitNode(node, visitor, ts.isStatement));
+            }
+        }
+        function visitWhileStatement(node) {
+            if (inStatementContainingYield) {
+                beginScriptLoopBlock();
+                node = ts.visitEachChild(node, visitor, context);
+                endLoopBlock();
+                return node;
+            }
+            else {
+                return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function transformAndEmitForStatement(node) {
+            if (containsYield(node)) {
+                var conditionLabel = defineLabel();
+                var incrementLabel = defineLabel();
+                var endLabel = beginLoopBlock(incrementLabel);
+                if (node.initializer) {
+                    var initializer = node.initializer;
+                    if (ts.isVariableDeclarationList(initializer)) {
+                        transformAndEmitVariableDeclarationList(initializer);
+                    }
+                    else {
+                        emitStatement(ts.setTextRange(ts.createExpressionStatement(ts.visitNode(initializer, visitor, ts.isExpression)), initializer));
+                    }
+                }
+                markLabel(conditionLabel);
+                if (node.condition) {
+                    emitBreakWhenFalse(endLabel, ts.visitNode(node.condition, visitor, ts.isExpression));
+                }
+                transformAndEmitEmbeddedStatement(node.statement);
+                markLabel(incrementLabel);
+                if (node.incrementor) {
+                    emitStatement(ts.setTextRange(ts.createExpressionStatement(ts.visitNode(node.incrementor, visitor, ts.isExpression)), node.incrementor));
+                }
+                emitBreak(conditionLabel);
+                endLoopBlock();
+            }
+            else {
+                emitStatement(ts.visitNode(node, visitor, ts.isStatement));
+            }
+        }
+        function visitForStatement(node) {
+            if (inStatementContainingYield) {
+                beginScriptLoopBlock();
+            }
+            var initializer = node.initializer;
+            if (initializer && ts.isVariableDeclarationList(initializer)) {
+                for (var _i = 0, _a = initializer.declarations; _i < _a.length; _i++) {
+                    var variable = _a[_i];
+                    hoistVariableDeclaration(variable.name);
+                }
+                var variables = ts.getInitializedVariables(initializer);
+                node = ts.updateFor(node, variables.length > 0
+                    ? ts.inlineExpressions(ts.map(variables, transformInitializedVariable))
+                    : undefined, ts.visitNode(node.condition, visitor, ts.isExpression), ts.visitNode(node.incrementor, visitor, ts.isExpression), ts.visitNode(node.statement, visitor, ts.isStatement, ts.liftToBlock));
+            }
+            else {
+                node = ts.visitEachChild(node, visitor, context);
+            }
+            if (inStatementContainingYield) {
+                endLoopBlock();
+            }
+            return node;
+        }
+        function transformAndEmitForInStatement(node) {
+            if (containsYield(node)) {
+                var keysArray = declareLocal();
+                var key = declareLocal();
+                var keysIndex = ts.createLoopVariable();
+                var initializer = node.initializer;
+                hoistVariableDeclaration(keysIndex);
+                emitAssignment(keysArray, ts.createArrayLiteral());
+                emitStatement(ts.createForIn(key, ts.visitNode(node.expression, visitor, ts.isExpression), ts.createExpressionStatement(ts.createCall(ts.createPropertyAccess(keysArray, "push"), undefined, [key]))));
+                emitAssignment(keysIndex, ts.createLiteral(0));
+                var conditionLabel = defineLabel();
+                var incrementLabel = defineLabel();
+                var endLabel = beginLoopBlock(incrementLabel);
+                markLabel(conditionLabel);
+                emitBreakWhenFalse(endLabel, ts.createLessThan(keysIndex, ts.createPropertyAccess(keysArray, "length")));
+                var variable = void 0;
+                if (ts.isVariableDeclarationList(initializer)) {
+                    for (var _i = 0, _a = initializer.declarations; _i < _a.length; _i++) {
+                        var variable_1 = _a[_i];
+                        hoistVariableDeclaration(variable_1.name);
+                    }
+                    variable = ts.getSynthesizedClone(initializer.declarations[0].name);
+                }
+                else {
+                    variable = ts.visitNode(initializer, visitor, ts.isExpression);
+                    ts.Debug.assert(ts.isLeftHandSideExpression(variable));
+                }
+                emitAssignment(variable, ts.createElementAccess(keysArray, keysIndex));
+                transformAndEmitEmbeddedStatement(node.statement);
+                markLabel(incrementLabel);
+                emitStatement(ts.createExpressionStatement(ts.createPostfixIncrement(keysIndex)));
+                emitBreak(conditionLabel);
+                endLoopBlock();
+            }
+            else {
+                emitStatement(ts.visitNode(node, visitor, ts.isStatement));
+            }
+        }
+        function visitForInStatement(node) {
+            if (inStatementContainingYield) {
+                beginScriptLoopBlock();
+            }
+            var initializer = node.initializer;
+            if (ts.isVariableDeclarationList(initializer)) {
+                for (var _i = 0, _a = initializer.declarations; _i < _a.length; _i++) {
+                    var variable = _a[_i];
+                    hoistVariableDeclaration(variable.name);
+                }
+                node = ts.updateForIn(node, initializer.declarations[0].name, ts.visitNode(node.expression, visitor, ts.isExpression), ts.visitNode(node.statement, visitor, ts.isStatement, ts.liftToBlock));
+            }
+            else {
+                node = ts.visitEachChild(node, visitor, context);
+            }
+            if (inStatementContainingYield) {
+                endLoopBlock();
+            }
+            return node;
+        }
+        function transformAndEmitContinueStatement(node) {
+            var label = findContinueTarget(node.label ? ts.idText(node.label) : undefined);
+            if (label > 0) {
+                emitBreak(label, node);
+            }
+            else {
+                emitStatement(node);
+            }
+        }
+        function visitContinueStatement(node) {
+            if (inStatementContainingYield) {
+                var label = findContinueTarget(node.label && ts.idText(node.label));
+                if (label > 0) {
+                    return createInlineBreak(label, node);
+                }
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function transformAndEmitBreakStatement(node) {
+            var label = findBreakTarget(node.label ? ts.idText(node.label) : undefined);
+            if (label > 0) {
+                emitBreak(label, node);
+            }
+            else {
+                emitStatement(node);
+            }
+        }
+        function visitBreakStatement(node) {
+            if (inStatementContainingYield) {
+                var label = findBreakTarget(node.label && ts.idText(node.label));
+                if (label > 0) {
+                    return createInlineBreak(label, node);
+                }
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function transformAndEmitReturnStatement(node) {
+            emitReturn(ts.visitNode(node.expression, visitor, ts.isExpression), node);
+        }
+        function visitReturnStatement(node) {
+            return createInlineReturn(ts.visitNode(node.expression, visitor, ts.isExpression), node);
+        }
+        function transformAndEmitWithStatement(node) {
+            if (containsYield(node)) {
+                beginWithBlock(cacheExpression(ts.visitNode(node.expression, visitor, ts.isExpression)));
+                transformAndEmitEmbeddedStatement(node.statement);
+                endWithBlock();
+            }
+            else {
+                emitStatement(ts.visitNode(node, visitor, ts.isStatement));
+            }
+        }
+        function transformAndEmitSwitchStatement(node) {
+            if (containsYield(node.caseBlock)) {
+                var caseBlock = node.caseBlock;
+                var numClauses = caseBlock.clauses.length;
+                var endLabel = beginSwitchBlock();
+                var expression = cacheExpression(ts.visitNode(node.expression, visitor, ts.isExpression));
+                var clauseLabels = [];
+                var defaultClauseIndex = -1;
+                for (var i = 0; i < numClauses; i++) {
+                    var clause = caseBlock.clauses[i];
+                    clauseLabels.push(defineLabel());
+                    if (clause.kind === 278 && defaultClauseIndex === -1) {
+                        defaultClauseIndex = i;
+                    }
+                }
+                var clausesWritten = 0;
+                var pendingClauses = [];
+                while (clausesWritten < numClauses) {
+                    var defaultClausesSkipped = 0;
+                    for (var i = clausesWritten; i < numClauses; i++) {
+                        var clause = caseBlock.clauses[i];
+                        if (clause.kind === 277) {
+                            if (containsYield(clause.expression) && pendingClauses.length > 0) {
+                                break;
+                            }
+                            pendingClauses.push(ts.createCaseClause(ts.visitNode(clause.expression, visitor, ts.isExpression), [
+                                createInlineBreak(clauseLabels[i], clause.expression)
+                            ]));
+                        }
+                        else {
+                            defaultClausesSkipped++;
+                        }
+                    }
+                    if (pendingClauses.length) {
+                        emitStatement(ts.createSwitch(expression, ts.createCaseBlock(pendingClauses)));
+                        clausesWritten += pendingClauses.length;
+                        pendingClauses = [];
+                    }
+                    if (defaultClausesSkipped > 0) {
+                        clausesWritten += defaultClausesSkipped;
+                        defaultClausesSkipped = 0;
+                    }
+                }
+                if (defaultClauseIndex >= 0) {
+                    emitBreak(clauseLabels[defaultClauseIndex]);
+                }
+                else {
+                    emitBreak(endLabel);
+                }
+                for (var i = 0; i < numClauses; i++) {
+                    markLabel(clauseLabels[i]);
+                    transformAndEmitStatements(caseBlock.clauses[i].statements);
+                }
+                endSwitchBlock();
+            }
+            else {
+                emitStatement(ts.visitNode(node, visitor, ts.isStatement));
+            }
+        }
+        function visitSwitchStatement(node) {
+            if (inStatementContainingYield) {
+                beginScriptSwitchBlock();
+            }
+            node = ts.visitEachChild(node, visitor, context);
+            if (inStatementContainingYield) {
+                endSwitchBlock();
+            }
+            return node;
+        }
+        function transformAndEmitLabeledStatement(node) {
+            if (containsYield(node)) {
+                beginLabeledBlock(ts.idText(node.label));
+                transformAndEmitEmbeddedStatement(node.statement);
+                endLabeledBlock();
+            }
+            else {
+                emitStatement(ts.visitNode(node, visitor, ts.isStatement));
+            }
+        }
+        function visitLabeledStatement(node) {
+            if (inStatementContainingYield) {
+                beginScriptLabeledBlock(ts.idText(node.label));
+            }
+            node = ts.visitEachChild(node, visitor, context);
+            if (inStatementContainingYield) {
+                endLabeledBlock();
+            }
+            return node;
+        }
+        function transformAndEmitThrowStatement(node) {
+            emitThrow(ts.visitNode(node.expression, visitor, ts.isExpression), node);
+        }
+        function transformAndEmitTryStatement(node) {
+            if (containsYield(node)) {
+                beginExceptionBlock();
+                transformAndEmitEmbeddedStatement(node.tryBlock);
+                if (node.catchClause) {
+                    beginCatchBlock(node.catchClause.variableDeclaration);
+                    transformAndEmitEmbeddedStatement(node.catchClause.block);
+                }
+                if (node.finallyBlock) {
+                    beginFinallyBlock();
+                    transformAndEmitEmbeddedStatement(node.finallyBlock);
+                }
+                endExceptionBlock();
+            }
+            else {
+                emitStatement(ts.visitEachChild(node, visitor, context));
+            }
+        }
+        function containsYield(node) {
+            return !!node && (node.transformFlags & 262144) !== 0;
+        }
+        function countInitialNodesWithoutYield(nodes) {
+            var numNodes = nodes.length;
+            for (var i = 0; i < numNodes; i++) {
+                if (containsYield(nodes[i])) {
+                    return i;
+                }
+            }
+            return -1;
+        }
+        function onSubstituteNode(hint, node) {
+            node = previousOnSubstituteNode(hint, node);
+            if (hint === 1) {
+                return substituteExpression(node);
+            }
+            return node;
+        }
+        function substituteExpression(node) {
+            if (ts.isIdentifier(node)) {
+                return substituteExpressionIdentifier(node);
+            }
+            return node;
+        }
+        function substituteExpressionIdentifier(node) {
+            if (!ts.isGeneratedIdentifier(node) && renamedCatchVariables && renamedCatchVariables.has(ts.idText(node))) {
+                var original = ts.getOriginalNode(node);
+                if (ts.isIdentifier(original) && original.parent) {
+                    var declaration = resolver.getReferencedValueDeclaration(original);
+                    if (declaration) {
+                        var name = renamedCatchVariableDeclarations[ts.getOriginalNodeId(declaration)];
+                        if (name) {
+                            var clone_8 = ts.getMutableClone(name);
+                            ts.setSourceMapRange(clone_8, node);
+                            ts.setCommentRange(clone_8, node);
+                            return clone_8;
+                        }
+                    }
+                }
+            }
+            return node;
+        }
+        function cacheExpression(node) {
+            if (ts.isGeneratedIdentifier(node) || ts.getEmitFlags(node) & 4096) {
+                return node;
+            }
+            var temp = ts.createTempVariable(hoistVariableDeclaration);
+            emitAssignment(temp, node, node);
+            return temp;
+        }
+        function declareLocal(name) {
+            var temp = name
+                ? ts.createUniqueName(name)
+                : ts.createTempVariable(undefined);
+            hoistVariableDeclaration(temp);
+            return temp;
+        }
+        function defineLabel() {
+            if (!labelOffsets) {
+                labelOffsets = [];
+            }
+            var label = nextLabelId;
+            nextLabelId++;
+            labelOffsets[label] = -1;
+            return label;
+        }
+        function markLabel(label) {
+            ts.Debug.assert(labelOffsets !== undefined, "No labels were defined.");
+            labelOffsets[label] = operations ? operations.length : 0;
+        }
+        function beginBlock(block) {
+            if (!blocks) {
+                blocks = [];
+                blockActions = [];
+                blockOffsets = [];
+                blockStack = [];
+            }
+            var index = blockActions.length;
+            blockActions[index] = 0;
+            blockOffsets[index] = operations ? operations.length : 0;
+            blocks[index] = block;
+            blockStack.push(block);
+            return index;
+        }
+        function endBlock() {
+            var block = peekBlock();
+            if (block === undefined)
+                return ts.Debug.fail("beginBlock was never called.");
+            var index = blockActions.length;
+            blockActions[index] = 1;
+            blockOffsets[index] = operations ? operations.length : 0;
+            blocks[index] = block;
+            blockStack.pop();
+            return block;
+        }
+        function peekBlock() {
+            return ts.lastOrUndefined(blockStack);
+        }
+        function peekBlockKind() {
+            var block = peekBlock();
+            return block && block.kind;
+        }
+        function beginWithBlock(expression) {
+            var startLabel = defineLabel();
+            var endLabel = defineLabel();
+            markLabel(startLabel);
+            beginBlock({
+                kind: 1,
+                expression: expression,
+                startLabel: startLabel,
+                endLabel: endLabel
+            });
+        }
+        function endWithBlock() {
+            ts.Debug.assert(peekBlockKind() === 1);
+            var block = endBlock();
+            markLabel(block.endLabel);
+        }
+        function beginExceptionBlock() {
+            var startLabel = defineLabel();
+            var endLabel = defineLabel();
+            markLabel(startLabel);
+            beginBlock({
+                kind: 0,
+                state: 0,
+                startLabel: startLabel,
+                endLabel: endLabel
+            });
+            emitNop();
+            return endLabel;
+        }
+        function beginCatchBlock(variable) {
+            ts.Debug.assert(peekBlockKind() === 0);
+            var name;
+            if (ts.isGeneratedIdentifier(variable.name)) {
+                name = variable.name;
+                hoistVariableDeclaration(variable.name);
+            }
+            else {
+                var text = ts.idText(variable.name);
+                name = declareLocal(text);
+                if (!renamedCatchVariables) {
+                    renamedCatchVariables = ts.createMap();
+                    renamedCatchVariableDeclarations = [];
+                    context.enableSubstitution(75);
+                }
+                renamedCatchVariables.set(text, true);
+                renamedCatchVariableDeclarations[ts.getOriginalNodeId(variable)] = name;
+            }
+            var exception = peekBlock();
+            ts.Debug.assert(exception.state < 1);
+            var endLabel = exception.endLabel;
+            emitBreak(endLabel);
+            var catchLabel = defineLabel();
+            markLabel(catchLabel);
+            exception.state = 1;
+            exception.catchVariable = name;
+            exception.catchLabel = catchLabel;
+            emitAssignment(name, ts.createCall(ts.createPropertyAccess(state, "sent"), undefined, []));
+            emitNop();
+        }
+        function beginFinallyBlock() {
+            ts.Debug.assert(peekBlockKind() === 0);
+            var exception = peekBlock();
+            ts.Debug.assert(exception.state < 2);
+            var endLabel = exception.endLabel;
+            emitBreak(endLabel);
+            var finallyLabel = defineLabel();
+            markLabel(finallyLabel);
+            exception.state = 2;
+            exception.finallyLabel = finallyLabel;
+        }
+        function endExceptionBlock() {
+            ts.Debug.assert(peekBlockKind() === 0);
+            var exception = endBlock();
+            var state = exception.state;
+            if (state < 2) {
+                emitBreak(exception.endLabel);
+            }
+            else {
+                emitEndfinally();
+            }
+            markLabel(exception.endLabel);
+            emitNop();
+            exception.state = 3;
+        }
+        function beginScriptLoopBlock() {
+            beginBlock({
+                kind: 3,
+                isScript: true,
+                breakLabel: -1,
+                continueLabel: -1
+            });
+        }
+        function beginLoopBlock(continueLabel) {
+            var breakLabel = defineLabel();
+            beginBlock({
+                kind: 3,
+                isScript: false,
+                breakLabel: breakLabel,
+                continueLabel: continueLabel,
+            });
+            return breakLabel;
+        }
+        function endLoopBlock() {
+            ts.Debug.assert(peekBlockKind() === 3);
+            var block = endBlock();
+            var breakLabel = block.breakLabel;
+            if (!block.isScript) {
+                markLabel(breakLabel);
+            }
+        }
+        function beginScriptSwitchBlock() {
+            beginBlock({
+                kind: 2,
+                isScript: true,
+                breakLabel: -1
+            });
+        }
+        function beginSwitchBlock() {
+            var breakLabel = defineLabel();
+            beginBlock({
+                kind: 2,
+                isScript: false,
+                breakLabel: breakLabel,
+            });
+            return breakLabel;
+        }
+        function endSwitchBlock() {
+            ts.Debug.assert(peekBlockKind() === 2);
+            var block = endBlock();
+            var breakLabel = block.breakLabel;
+            if (!block.isScript) {
+                markLabel(breakLabel);
+            }
+        }
+        function beginScriptLabeledBlock(labelText) {
+            beginBlock({
+                kind: 4,
+                isScript: true,
+                labelText: labelText,
+                breakLabel: -1
+            });
+        }
+        function beginLabeledBlock(labelText) {
+            var breakLabel = defineLabel();
+            beginBlock({
+                kind: 4,
+                isScript: false,
+                labelText: labelText,
+                breakLabel: breakLabel
+            });
+        }
+        function endLabeledBlock() {
+            ts.Debug.assert(peekBlockKind() === 4);
+            var block = endBlock();
+            if (!block.isScript) {
+                markLabel(block.breakLabel);
+            }
+        }
+        function supportsUnlabeledBreak(block) {
+            return block.kind === 2
+                || block.kind === 3;
+        }
+        function supportsLabeledBreakOrContinue(block) {
+            return block.kind === 4;
+        }
+        function supportsUnlabeledContinue(block) {
+            return block.kind === 3;
+        }
+        function hasImmediateContainingLabeledBlock(labelText, start) {
+            for (var j = start; j >= 0; j--) {
+                var containingBlock = blockStack[j];
+                if (supportsLabeledBreakOrContinue(containingBlock)) {
+                    if (containingBlock.labelText === labelText) {
+                        return true;
+                    }
+                }
+                else {
+                    break;
+                }
+            }
+            return false;
+        }
+        function findBreakTarget(labelText) {
+            if (blockStack) {
+                if (labelText) {
+                    for (var i = blockStack.length - 1; i >= 0; i--) {
+                        var block = blockStack[i];
+                        if (supportsLabeledBreakOrContinue(block) && block.labelText === labelText) {
+                            return block.breakLabel;
+                        }
+                        else if (supportsUnlabeledBreak(block) && hasImmediateContainingLabeledBlock(labelText, i - 1)) {
+                            return block.breakLabel;
+                        }
+                    }
+                }
+                else {
+                    for (var i = blockStack.length - 1; i >= 0; i--) {
+                        var block = blockStack[i];
+                        if (supportsUnlabeledBreak(block)) {
+                            return block.breakLabel;
+                        }
+                    }
+                }
+            }
+            return 0;
+        }
+        function findContinueTarget(labelText) {
+            if (blockStack) {
+                if (labelText) {
+                    for (var i = blockStack.length - 1; i >= 0; i--) {
+                        var block = blockStack[i];
+                        if (supportsUnlabeledContinue(block) && hasImmediateContainingLabeledBlock(labelText, i - 1)) {
+                            return block.continueLabel;
+                        }
+                    }
+                }
+                else {
+                    for (var i = blockStack.length - 1; i >= 0; i--) {
+                        var block = blockStack[i];
+                        if (supportsUnlabeledContinue(block)) {
+                            return block.continueLabel;
+                        }
+                    }
+                }
+            }
+            return 0;
+        }
+        function createLabel(label) {
+            if (label !== undefined && label > 0) {
+                if (labelExpressions === undefined) {
+                    labelExpressions = [];
+                }
+                var expression = ts.createLiteral(-1);
+                if (labelExpressions[label] === undefined) {
+                    labelExpressions[label] = [expression];
+                }
+                else {
+                    labelExpressions[label].push(expression);
+                }
+                return expression;
+            }
+            return ts.createOmittedExpression();
+        }
+        function createInstruction(instruction) {
+            var literal = ts.createLiteral(instruction);
+            ts.addSyntheticTrailingComment(literal, 3, getInstructionName(instruction));
+            return literal;
+        }
+        function createInlineBreak(label, location) {
+            ts.Debug.assertLessThan(0, label, "Invalid label");
+            return ts.setTextRange(ts.createReturn(ts.createArrayLiteral([
+                createInstruction(3),
+                createLabel(label)
+            ])), location);
+        }
+        function createInlineReturn(expression, location) {
+            return ts.setTextRange(ts.createReturn(ts.createArrayLiteral(expression
+                ? [createInstruction(2), expression]
+                : [createInstruction(2)])), location);
+        }
+        function createGeneratorResume(location) {
+            return ts.setTextRange(ts.createCall(ts.createPropertyAccess(state, "sent"), undefined, []), location);
+        }
+        function emitNop() {
+            emitWorker(0);
+        }
+        function emitStatement(node) {
+            if (node) {
+                emitWorker(1, [node]);
+            }
+            else {
+                emitNop();
+            }
+        }
+        function emitAssignment(left, right, location) {
+            emitWorker(2, [left, right], location);
+        }
+        function emitBreak(label, location) {
+            emitWorker(3, [label], location);
+        }
+        function emitBreakWhenTrue(label, condition, location) {
+            emitWorker(4, [label, condition], location);
+        }
+        function emitBreakWhenFalse(label, condition, location) {
+            emitWorker(5, [label, condition], location);
+        }
+        function emitYieldStar(expression, location) {
+            emitWorker(7, [expression], location);
+        }
+        function emitYield(expression, location) {
+            emitWorker(6, [expression], location);
+        }
+        function emitReturn(expression, location) {
+            emitWorker(8, [expression], location);
+        }
+        function emitThrow(expression, location) {
+            emitWorker(9, [expression], location);
+        }
+        function emitEndfinally() {
+            emitWorker(10);
+        }
+        function emitWorker(code, args, location) {
+            if (operations === undefined) {
+                operations = [];
+                operationArguments = [];
+                operationLocations = [];
+            }
+            if (labelOffsets === undefined) {
+                markLabel(defineLabel());
+            }
+            var operationIndex = operations.length;
+            operations[operationIndex] = code;
+            operationArguments[operationIndex] = args;
+            operationLocations[operationIndex] = location;
+        }
+        function build() {
+            blockIndex = 0;
+            labelNumber = 0;
+            labelNumbers = undefined;
+            lastOperationWasAbrupt = false;
+            lastOperationWasCompletion = false;
+            clauses = undefined;
+            statements = undefined;
+            exceptionBlockStack = undefined;
+            currentExceptionBlock = undefined;
+            withBlockStack = undefined;
+            var buildResult = buildStatements();
+            return createGeneratorHelper(context, ts.setEmitFlags(ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, state)], undefined, ts.createBlock(buildResult, buildResult.length > 0)), 524288));
+        }
+        function buildStatements() {
+            if (operations) {
+                for (var operationIndex = 0; operationIndex < operations.length; operationIndex++) {
+                    writeOperation(operationIndex);
+                }
+                flushFinalLabel(operations.length);
+            }
+            else {
+                flushFinalLabel(0);
+            }
+            if (clauses) {
+                var labelExpression = ts.createPropertyAccess(state, "label");
+                var switchStatement = ts.createSwitch(labelExpression, ts.createCaseBlock(clauses));
+                return [ts.startOnNewLine(switchStatement)];
+            }
+            if (statements) {
+                return statements;
+            }
+            return [];
+        }
+        function flushLabel() {
+            if (!statements) {
+                return;
+            }
+            appendLabel(!lastOperationWasAbrupt);
+            lastOperationWasAbrupt = false;
+            lastOperationWasCompletion = false;
+            labelNumber++;
+        }
+        function flushFinalLabel(operationIndex) {
+            if (isFinalLabelReachable(operationIndex)) {
+                tryEnterLabel(operationIndex);
+                withBlockStack = undefined;
+                writeReturn(undefined, undefined);
+            }
+            if (statements && clauses) {
+                appendLabel(false);
+            }
+            updateLabelExpressions();
+        }
+        function isFinalLabelReachable(operationIndex) {
+            if (!lastOperationWasCompletion) {
+                return true;
+            }
+            if (!labelOffsets || !labelExpressions) {
+                return false;
+            }
+            for (var label = 0; label < labelOffsets.length; label++) {
+                if (labelOffsets[label] === operationIndex && labelExpressions[label]) {
+                    return true;
+                }
+            }
+            return false;
+        }
+        function appendLabel(markLabelEnd) {
+            if (!clauses) {
+                clauses = [];
+            }
+            if (statements) {
+                if (withBlockStack) {
+                    for (var i = withBlockStack.length - 1; i >= 0; i--) {
+                        var withBlock = withBlockStack[i];
+                        statements = [ts.createWith(withBlock.expression, ts.createBlock(statements))];
+                    }
+                }
+                if (currentExceptionBlock) {
+                    var startLabel = currentExceptionBlock.startLabel, catchLabel = currentExceptionBlock.catchLabel, finallyLabel = currentExceptionBlock.finallyLabel, endLabel = currentExceptionBlock.endLabel;
+                    statements.unshift(ts.createExpressionStatement(ts.createCall(ts.createPropertyAccess(ts.createPropertyAccess(state, "trys"), "push"), undefined, [
+                        ts.createArrayLiteral([
+                            createLabel(startLabel),
+                            createLabel(catchLabel),
+                            createLabel(finallyLabel),
+                            createLabel(endLabel)
+                        ])
+                    ])));
+                    currentExceptionBlock = undefined;
+                }
+                if (markLabelEnd) {
+                    statements.push(ts.createExpressionStatement(ts.createAssignment(ts.createPropertyAccess(state, "label"), ts.createLiteral(labelNumber + 1))));
+                }
+            }
+            clauses.push(ts.createCaseClause(ts.createLiteral(labelNumber), statements || []));
+            statements = undefined;
+        }
+        function tryEnterLabel(operationIndex) {
+            if (!labelOffsets) {
+                return;
+            }
+            for (var label = 0; label < labelOffsets.length; label++) {
+                if (labelOffsets[label] === operationIndex) {
+                    flushLabel();
+                    if (labelNumbers === undefined) {
+                        labelNumbers = [];
+                    }
+                    if (labelNumbers[labelNumber] === undefined) {
+                        labelNumbers[labelNumber] = [label];
+                    }
+                    else {
+                        labelNumbers[labelNumber].push(label);
+                    }
+                }
+            }
+        }
+        function updateLabelExpressions() {
+            if (labelExpressions !== undefined && labelNumbers !== undefined) {
+                for (var labelNumber_1 = 0; labelNumber_1 < labelNumbers.length; labelNumber_1++) {
+                    var labels = labelNumbers[labelNumber_1];
+                    if (labels !== undefined) {
+                        for (var _i = 0, labels_1 = labels; _i < labels_1.length; _i++) {
+                            var label = labels_1[_i];
+                            var expressions = labelExpressions[label];
+                            if (expressions !== undefined) {
+                                for (var _a = 0, expressions_1 = expressions; _a < expressions_1.length; _a++) {
+                                    var expression = expressions_1[_a];
+                                    expression.text = String(labelNumber_1);
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        function tryEnterOrLeaveBlock(operationIndex) {
+            if (blocks) {
+                for (; blockIndex < blockActions.length && blockOffsets[blockIndex] <= operationIndex; blockIndex++) {
+                    var block = blocks[blockIndex];
+                    var blockAction = blockActions[blockIndex];
+                    switch (block.kind) {
+                        case 0:
+                            if (blockAction === 0) {
+                                if (!exceptionBlockStack) {
+                                    exceptionBlockStack = [];
+                                }
+                                if (!statements) {
+                                    statements = [];
+                                }
+                                exceptionBlockStack.push(currentExceptionBlock);
+                                currentExceptionBlock = block;
+                            }
+                            else if (blockAction === 1) {
+                                currentExceptionBlock = exceptionBlockStack.pop();
+                            }
+                            break;
+                        case 1:
+                            if (blockAction === 0) {
+                                if (!withBlockStack) {
+                                    withBlockStack = [];
+                                }
+                                withBlockStack.push(block);
+                            }
+                            else if (blockAction === 1) {
+                                withBlockStack.pop();
+                            }
+                            break;
+                    }
+                }
+            }
+        }
+        function writeOperation(operationIndex) {
+            tryEnterLabel(operationIndex);
+            tryEnterOrLeaveBlock(operationIndex);
+            if (lastOperationWasAbrupt) {
+                return;
+            }
+            lastOperationWasAbrupt = false;
+            lastOperationWasCompletion = false;
+            var opcode = operations[operationIndex];
+            if (opcode === 0) {
+                return;
+            }
+            else if (opcode === 10) {
+                return writeEndfinally();
+            }
+            var args = operationArguments[operationIndex];
+            if (opcode === 1) {
+                return writeStatement(args[0]);
+            }
+            var location = operationLocations[operationIndex];
+            switch (opcode) {
+                case 2:
+                    return writeAssign(args[0], args[1], location);
+                case 3:
+                    return writeBreak(args[0], location);
+                case 4:
+                    return writeBreakWhenTrue(args[0], args[1], location);
+                case 5:
+                    return writeBreakWhenFalse(args[0], args[1], location);
+                case 6:
+                    return writeYield(args[0], location);
+                case 7:
+                    return writeYieldStar(args[0], location);
+                case 8:
+                    return writeReturn(args[0], location);
+                case 9:
+                    return writeThrow(args[0], location);
+            }
+        }
+        function writeStatement(statement) {
+            if (statement) {
+                if (!statements) {
+                    statements = [statement];
+                }
+                else {
+                    statements.push(statement);
+                }
+            }
+        }
+        function writeAssign(left, right, operationLocation) {
+            writeStatement(ts.setTextRange(ts.createExpressionStatement(ts.createAssignment(left, right)), operationLocation));
+        }
+        function writeThrow(expression, operationLocation) {
+            lastOperationWasAbrupt = true;
+            lastOperationWasCompletion = true;
+            writeStatement(ts.setTextRange(ts.createThrow(expression), operationLocation));
+        }
+        function writeReturn(expression, operationLocation) {
+            lastOperationWasAbrupt = true;
+            lastOperationWasCompletion = true;
+            writeStatement(ts.setEmitFlags(ts.setTextRange(ts.createReturn(ts.createArrayLiteral(expression
+                ? [createInstruction(2), expression]
+                : [createInstruction(2)])), operationLocation), 384));
+        }
+        function writeBreak(label, operationLocation) {
+            lastOperationWasAbrupt = true;
+            writeStatement(ts.setEmitFlags(ts.setTextRange(ts.createReturn(ts.createArrayLiteral([
+                createInstruction(3),
+                createLabel(label)
+            ])), operationLocation), 384));
+        }
+        function writeBreakWhenTrue(label, condition, operationLocation) {
+            writeStatement(ts.setEmitFlags(ts.createIf(condition, ts.setEmitFlags(ts.setTextRange(ts.createReturn(ts.createArrayLiteral([
+                createInstruction(3),
+                createLabel(label)
+            ])), operationLocation), 384)), 1));
+        }
+        function writeBreakWhenFalse(label, condition, operationLocation) {
+            writeStatement(ts.setEmitFlags(ts.createIf(ts.createLogicalNot(condition), ts.setEmitFlags(ts.setTextRange(ts.createReturn(ts.createArrayLiteral([
+                createInstruction(3),
+                createLabel(label)
+            ])), operationLocation), 384)), 1));
+        }
+        function writeYield(expression, operationLocation) {
+            lastOperationWasAbrupt = true;
+            writeStatement(ts.setEmitFlags(ts.setTextRange(ts.createReturn(ts.createArrayLiteral(expression
+                ? [createInstruction(4), expression]
+                : [createInstruction(4)])), operationLocation), 384));
+        }
+        function writeYieldStar(expression, operationLocation) {
+            lastOperationWasAbrupt = true;
+            writeStatement(ts.setEmitFlags(ts.setTextRange(ts.createReturn(ts.createArrayLiteral([
+                createInstruction(5),
+                expression
+            ])), operationLocation), 384));
+        }
+        function writeEndfinally() {
+            lastOperationWasAbrupt = true;
+            writeStatement(ts.createReturn(ts.createArrayLiteral([
+                createInstruction(7)
+            ])));
+        }
+    }
+    ts.transformGenerators = transformGenerators;
+    function createGeneratorHelper(context, body) {
+        context.requestEmitHelper(ts.generatorHelper);
+        return ts.createCall(ts.getUnscopedHelperName("__generator"), undefined, [ts.createThis(), body]);
+    }
+    ts.generatorHelper = {
+        name: "typescript:generator",
+        importName: "__generator",
+        scoped: false,
+        priority: 6,
+        text: "\n            var __generator = (this && this.__generator) || function (thisArg, body) {\n                var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\n                return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\n                function verb(n) { return function (v) { return step([n, v]); }; }\n                function step(op) {\n                    if (f) throw new TypeError(\"Generator is already executing.\");\n                    while (_) try {\n                        if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\n                        if (y = 0, t) op = [op[0] & 2, t.value];\n                        switch (op[0]) {\n                            case 0: case 1: t = op; break;\n                            case 4: _.label++; return { value: op[1], done: false };\n                            case 5: _.label++; y = op[1]; op = [0]; continue;\n                            case 7: op = _.ops.pop(); _.trys.pop(); continue;\n                            default:\n                                if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n                                if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n                                if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n                                if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n                                if (t[2]) _.ops.pop();\n                                _.trys.pop(); continue;\n                        }\n                        op = body.call(thisArg, _);\n                    } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n                    if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n                }\n            };"
+    };
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformModule(context) {
+        function getTransformModuleDelegate(moduleKind) {
+            switch (moduleKind) {
+                case ts.ModuleKind.AMD: return transformAMDModule;
+                case ts.ModuleKind.UMD: return transformUMDModule;
+                default: return transformCommonJSModule;
+            }
+        }
+        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var compilerOptions = context.getCompilerOptions();
+        var resolver = context.getEmitResolver();
+        var host = context.getEmitHost();
+        var languageVersion = ts.getEmitScriptTarget(compilerOptions);
+        var moduleKind = ts.getEmitModuleKind(compilerOptions);
+        var previousOnSubstituteNode = context.onSubstituteNode;
+        var previousOnEmitNode = context.onEmitNode;
+        context.onSubstituteNode = onSubstituteNode;
+        context.onEmitNode = onEmitNode;
+        context.enableSubstitution(75);
+        context.enableSubstitution(209);
+        context.enableSubstitution(207);
+        context.enableSubstitution(208);
+        context.enableSubstitution(282);
+        context.enableEmitNotification(290);
+        var moduleInfoMap = [];
+        var deferredExports = [];
+        var currentSourceFile;
+        var currentModuleInfo;
+        var noSubstitution;
+        var needUMDDynamicImportHelper;
+        return ts.chainBundle(transformSourceFile);
+        function transformSourceFile(node) {
+            if (node.isDeclarationFile ||
+                !(ts.isEffectiveExternalModule(node, compilerOptions) ||
+                    node.transformFlags & 2097152 ||
+                    (ts.isJsonSourceFile(node) && ts.hasJsonModuleEmitEnabled(compilerOptions) && (compilerOptions.out || compilerOptions.outFile)))) {
+                return node;
+            }
+            currentSourceFile = node;
+            currentModuleInfo = ts.collectExternalModuleInfo(node, resolver, compilerOptions);
+            moduleInfoMap[ts.getOriginalNodeId(node)] = currentModuleInfo;
+            var transformModule = getTransformModuleDelegate(moduleKind);
+            var updated = transformModule(node);
+            currentSourceFile = undefined;
+            currentModuleInfo = undefined;
+            needUMDDynamicImportHelper = false;
+            return ts.aggregateTransformFlags(updated);
+        }
+        function shouldEmitUnderscoreUnderscoreESModule() {
+            if (!currentModuleInfo.exportEquals && ts.isExternalModule(currentSourceFile)) {
+                return true;
+            }
+            return false;
+        }
+        function transformCommonJSModule(node) {
+            startLexicalEnvironment();
+            var statements = [];
+            var ensureUseStrict = ts.getStrictOptionValue(compilerOptions, "alwaysStrict") || (!compilerOptions.noImplicitUseStrict && ts.isExternalModule(currentSourceFile));
+            var statementOffset = ts.addPrologue(statements, node.statements, ensureUseStrict && !ts.isJsonSourceFile(node), sourceElementVisitor);
+            if (shouldEmitUnderscoreUnderscoreESModule()) {
+                ts.append(statements, createUnderscoreUnderscoreESModule());
+            }
+            if (ts.length(currentModuleInfo.exportedNames)) {
+                ts.append(statements, ts.createExpressionStatement(ts.reduceLeft(currentModuleInfo.exportedNames, function (prev, nextId) { return ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("exports"), ts.createIdentifier(ts.idText(nextId))), prev); }, ts.createVoidZero())));
+            }
+            ts.append(statements, ts.visitNode(currentModuleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement));
+            ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
+            addExportEqualsIfNeeded(statements, false);
+            ts.insertStatementsAfterStandardPrologue(statements, endLexicalEnvironment());
+            var updated = ts.updateSourceFileNode(node, ts.setTextRange(ts.createNodeArray(statements), node.statements));
+            ts.addEmitHelpers(updated, context.readEmitHelpers());
+            return updated;
+        }
+        function transformAMDModule(node) {
+            var define = ts.createIdentifier("define");
+            var moduleName = ts.tryGetModuleNameFromFile(node, host, compilerOptions);
+            var jsonSourceFile = ts.isJsonSourceFile(node) && node;
+            var _a = collectAsynchronousDependencies(node, true), aliasedModuleNames = _a.aliasedModuleNames, unaliasedModuleNames = _a.unaliasedModuleNames, importAliasNames = _a.importAliasNames;
+            var updated = ts.updateSourceFileNode(node, ts.setTextRange(ts.createNodeArray([
+                ts.createExpressionStatement(ts.createCall(define, undefined, __spreadArrays((moduleName ? [moduleName] : []), [
+                    ts.createArrayLiteral(jsonSourceFile ? ts.emptyArray : __spreadArrays([
+                        ts.createLiteral("require"),
+                        ts.createLiteral("exports")
+                    ], aliasedModuleNames, unaliasedModuleNames)),
+                    jsonSourceFile ?
+                        jsonSourceFile.statements.length ? jsonSourceFile.statements[0].expression : ts.createObjectLiteral() :
+                        ts.createFunctionExpression(undefined, undefined, undefined, undefined, __spreadArrays([
+                            ts.createParameter(undefined, undefined, undefined, "require"),
+                            ts.createParameter(undefined, undefined, undefined, "exports")
+                        ], importAliasNames), undefined, transformAsynchronousModuleBody(node))
+                ])))
+            ]), node.statements));
+            ts.addEmitHelpers(updated, context.readEmitHelpers());
+            return updated;
+        }
+        function transformUMDModule(node) {
+            var _a = collectAsynchronousDependencies(node, false), aliasedModuleNames = _a.aliasedModuleNames, unaliasedModuleNames = _a.unaliasedModuleNames, importAliasNames = _a.importAliasNames;
+            var moduleName = ts.tryGetModuleNameFromFile(node, host, compilerOptions);
+            var umdHeader = ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, "factory")], undefined, ts.setTextRange(ts.createBlock([
+                ts.createIf(ts.createLogicalAnd(ts.createTypeCheck(ts.createIdentifier("module"), "object"), ts.createTypeCheck(ts.createPropertyAccess(ts.createIdentifier("module"), "exports"), "object")), ts.createBlock([
+                    ts.createVariableStatement(undefined, [
+                        ts.createVariableDeclaration("v", undefined, ts.createCall(ts.createIdentifier("factory"), undefined, [
+                            ts.createIdentifier("require"),
+                            ts.createIdentifier("exports")
+                        ]))
+                    ]),
+                    ts.setEmitFlags(ts.createIf(ts.createStrictInequality(ts.createIdentifier("v"), ts.createIdentifier("undefined")), ts.createExpressionStatement(ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("module"), "exports"), ts.createIdentifier("v")))), 1)
+                ]), ts.createIf(ts.createLogicalAnd(ts.createTypeCheck(ts.createIdentifier("define"), "function"), ts.createPropertyAccess(ts.createIdentifier("define"), "amd")), ts.createBlock([
+                    ts.createExpressionStatement(ts.createCall(ts.createIdentifier("define"), undefined, __spreadArrays((moduleName ? [moduleName] : []), [
+                        ts.createArrayLiteral(__spreadArrays([
+                            ts.createLiteral("require"),
+                            ts.createLiteral("exports")
+                        ], aliasedModuleNames, unaliasedModuleNames)),
+                        ts.createIdentifier("factory")
+                    ])))
+                ])))
+            ], true), undefined));
+            var updated = ts.updateSourceFileNode(node, ts.setTextRange(ts.createNodeArray([
+                ts.createExpressionStatement(ts.createCall(umdHeader, undefined, [
+                    ts.createFunctionExpression(undefined, undefined, undefined, undefined, __spreadArrays([
+                        ts.createParameter(undefined, undefined, undefined, "require"),
+                        ts.createParameter(undefined, undefined, undefined, "exports")
+                    ], importAliasNames), undefined, transformAsynchronousModuleBody(node))
+                ]))
+            ]), node.statements));
+            ts.addEmitHelpers(updated, context.readEmitHelpers());
+            return updated;
+        }
+        function collectAsynchronousDependencies(node, includeNonAmdDependencies) {
+            var aliasedModuleNames = [];
+            var unaliasedModuleNames = [];
+            var importAliasNames = [];
+            for (var _i = 0, _a = node.amdDependencies; _i < _a.length; _i++) {
+                var amdDependency = _a[_i];
+                if (amdDependency.name) {
+                    aliasedModuleNames.push(ts.createLiteral(amdDependency.path));
+                    importAliasNames.push(ts.createParameter(undefined, undefined, undefined, amdDependency.name));
+                }
+                else {
+                    unaliasedModuleNames.push(ts.createLiteral(amdDependency.path));
+                }
+            }
+            for (var _b = 0, _c = currentModuleInfo.externalImports; _b < _c.length; _b++) {
+                var importNode = _c[_b];
+                var externalModuleName = ts.getExternalModuleNameLiteral(importNode, currentSourceFile, host, resolver, compilerOptions);
+                var importAliasName = ts.getLocalNameForExternalImport(importNode, currentSourceFile);
+                if (externalModuleName) {
+                    if (includeNonAmdDependencies && importAliasName) {
+                        ts.setEmitFlags(importAliasName, 4);
+                        aliasedModuleNames.push(externalModuleName);
+                        importAliasNames.push(ts.createParameter(undefined, undefined, undefined, importAliasName));
+                    }
+                    else {
+                        unaliasedModuleNames.push(externalModuleName);
+                    }
+                }
+            }
+            return { aliasedModuleNames: aliasedModuleNames, unaliasedModuleNames: unaliasedModuleNames, importAliasNames: importAliasNames };
+        }
+        function getAMDImportExpressionForImport(node) {
+            if (ts.isImportEqualsDeclaration(node) || ts.isExportDeclaration(node) || !ts.getExternalModuleNameLiteral(node, currentSourceFile, host, resolver, compilerOptions)) {
+                return undefined;
+            }
+            var name = ts.getLocalNameForExternalImport(node, currentSourceFile);
+            var expr = getHelperExpressionForImport(node, name);
+            if (expr === name) {
+                return undefined;
+            }
+            return ts.createExpressionStatement(ts.createAssignment(name, expr));
+        }
+        function transformAsynchronousModuleBody(node) {
+            startLexicalEnvironment();
+            var statements = [];
+            var statementOffset = ts.addPrologue(statements, node.statements, !compilerOptions.noImplicitUseStrict, sourceElementVisitor);
+            if (shouldEmitUnderscoreUnderscoreESModule()) {
+                ts.append(statements, createUnderscoreUnderscoreESModule());
+            }
+            if (ts.length(currentModuleInfo.exportedNames)) {
+                ts.append(statements, ts.createExpressionStatement(ts.reduceLeft(currentModuleInfo.exportedNames, function (prev, nextId) { return ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("exports"), ts.createIdentifier(ts.idText(nextId))), prev); }, ts.createVoidZero())));
+            }
+            ts.append(statements, ts.visitNode(currentModuleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement));
+            if (moduleKind === ts.ModuleKind.AMD) {
+                ts.addRange(statements, ts.mapDefined(currentModuleInfo.externalImports, getAMDImportExpressionForImport));
+            }
+            ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
+            addExportEqualsIfNeeded(statements, true);
+            ts.insertStatementsAfterStandardPrologue(statements, endLexicalEnvironment());
+            var body = ts.createBlock(statements, true);
+            if (needUMDDynamicImportHelper) {
+                ts.addEmitHelper(body, dynamicImportUMDHelper);
+            }
+            return body;
+        }
+        function addExportEqualsIfNeeded(statements, emitAsReturn) {
+            if (currentModuleInfo.exportEquals) {
+                var expressionResult = ts.visitNode(currentModuleInfo.exportEquals.expression, moduleExpressionElementVisitor);
+                if (expressionResult) {
+                    if (emitAsReturn) {
+                        var statement = ts.createReturn(expressionResult);
+                        ts.setTextRange(statement, currentModuleInfo.exportEquals);
+                        ts.setEmitFlags(statement, 384 | 1536);
+                        statements.push(statement);
+                    }
+                    else {
+                        var statement = ts.createExpressionStatement(ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("module"), "exports"), expressionResult));
+                        ts.setTextRange(statement, currentModuleInfo.exportEquals);
+                        ts.setEmitFlags(statement, 1536);
+                        statements.push(statement);
+                    }
+                }
+            }
+        }
+        function sourceElementVisitor(node) {
+            switch (node.kind) {
+                case 254:
+                    return visitImportDeclaration(node);
+                case 253:
+                    return visitImportEqualsDeclaration(node);
+                case 260:
+                    return visitExportDeclaration(node);
+                case 259:
+                    return visitExportAssignment(node);
+                case 225:
+                    return visitVariableStatement(node);
+                case 244:
+                    return visitFunctionDeclaration(node);
+                case 245:
+                    return visitClassDeclaration(node);
+                case 328:
+                    return visitMergeDeclarationMarker(node);
+                case 329:
+                    return visitEndOfDeclarationMarker(node);
+                default:
+                    return ts.visitEachChild(node, moduleExpressionElementVisitor, context);
+            }
+        }
+        function moduleExpressionElementVisitor(node) {
+            if (!(node.transformFlags & 2097152) && !(node.transformFlags & 1024)) {
+                return node;
+            }
+            if (ts.isImportCall(node)) {
+                return visitImportCallExpression(node);
+            }
+            else if (ts.isDestructuringAssignment(node)) {
+                return visitDestructuringAssignment(node);
+            }
+            else {
+                return ts.visitEachChild(node, moduleExpressionElementVisitor, context);
+            }
+        }
+        function destructuringNeedsFlattening(node) {
+            if (ts.isObjectLiteralExpression(node)) {
+                for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
+                    var elem = _a[_i];
+                    switch (elem.kind) {
+                        case 281:
+                            if (destructuringNeedsFlattening(elem.initializer)) {
+                                return true;
+                            }
+                            break;
+                        case 282:
+                            if (destructuringNeedsFlattening(elem.name)) {
+                                return true;
+                            }
+                            break;
+                        case 283:
+                            if (destructuringNeedsFlattening(elem.expression)) {
+                                return true;
+                            }
+                            break;
+                        case 161:
+                        case 163:
+                        case 164:
+                            return false;
+                        default: ts.Debug.assertNever(elem, "Unhandled object member kind");
+                    }
+                }
+            }
+            else if (ts.isArrayLiteralExpression(node)) {
+                for (var _b = 0, _c = node.elements; _b < _c.length; _b++) {
+                    var elem = _c[_b];
+                    if (ts.isSpreadElement(elem)) {
+                        if (destructuringNeedsFlattening(elem.expression)) {
+                            return true;
+                        }
+                    }
+                    else if (destructuringNeedsFlattening(elem)) {
+                        return true;
+                    }
+                }
+            }
+            else if (ts.isIdentifier(node)) {
+                return ts.length(getExports(node)) > (ts.isExportName(node) ? 1 : 0);
+            }
+            return false;
+        }
+        function visitDestructuringAssignment(node) {
+            if (destructuringNeedsFlattening(node.left)) {
+                return ts.flattenDestructuringAssignment(node, moduleExpressionElementVisitor, context, 0, false, createAllExportExpressions);
+            }
+            return ts.visitEachChild(node, moduleExpressionElementVisitor, context);
+        }
+        function visitImportCallExpression(node) {
+            var argument = ts.visitNode(ts.firstOrUndefined(node.arguments), moduleExpressionElementVisitor);
+            var containsLexicalThis = !!(node.transformFlags & 4096);
+            switch (compilerOptions.module) {
+                case ts.ModuleKind.AMD:
+                    return createImportCallExpressionAMD(argument, containsLexicalThis);
+                case ts.ModuleKind.UMD:
+                    return createImportCallExpressionUMD(argument, containsLexicalThis);
+                case ts.ModuleKind.CommonJS:
+                default:
+                    return createImportCallExpressionCommonJS(argument, containsLexicalThis);
+            }
+        }
+        function createImportCallExpressionUMD(arg, containsLexicalThis) {
+            needUMDDynamicImportHelper = true;
+            if (ts.isSimpleCopiableExpression(arg)) {
+                var argClone = ts.isGeneratedIdentifier(arg) ? arg : ts.isStringLiteral(arg) ? ts.createLiteral(arg) : ts.setEmitFlags(ts.setTextRange(ts.getSynthesizedClone(arg), arg), 1536);
+                return ts.createConditional(ts.createIdentifier("__syncRequire"), createImportCallExpressionCommonJS(arg, containsLexicalThis), createImportCallExpressionAMD(argClone, containsLexicalThis));
+            }
+            else {
+                var temp = ts.createTempVariable(hoistVariableDeclaration);
+                return ts.createComma(ts.createAssignment(temp, arg), ts.createConditional(ts.createIdentifier("__syncRequire"), createImportCallExpressionCommonJS(temp, containsLexicalThis), createImportCallExpressionAMD(temp, containsLexicalThis)));
+            }
+        }
+        function createImportCallExpressionAMD(arg, containsLexicalThis) {
+            var resolve = ts.createUniqueName("resolve");
+            var reject = ts.createUniqueName("reject");
+            var parameters = [
+                ts.createParameter(undefined, undefined, undefined, resolve),
+                ts.createParameter(undefined, undefined, undefined, reject)
+            ];
+            var body = ts.createBlock([
+                ts.createExpressionStatement(ts.createCall(ts.createIdentifier("require"), undefined, [ts.createArrayLiteral([arg || ts.createOmittedExpression()]), resolve, reject]))
+            ]);
+            var func;
+            if (languageVersion >= 2) {
+                func = ts.createArrowFunction(undefined, undefined, parameters, undefined, undefined, body);
+            }
+            else {
+                func = ts.createFunctionExpression(undefined, undefined, undefined, undefined, parameters, undefined, body);
+                if (containsLexicalThis) {
+                    ts.setEmitFlags(func, 8);
+                }
+            }
+            var promise = ts.createNew(ts.createIdentifier("Promise"), undefined, [func]);
+            if (compilerOptions.esModuleInterop) {
+                context.requestEmitHelper(ts.importStarHelper);
+                return ts.createCall(ts.createPropertyAccess(promise, ts.createIdentifier("then")), undefined, [ts.getUnscopedHelperName("__importStar")]);
+            }
+            return promise;
+        }
+        function createImportCallExpressionCommonJS(arg, containsLexicalThis) {
+            var promiseResolveCall = ts.createCall(ts.createPropertyAccess(ts.createIdentifier("Promise"), "resolve"), undefined, []);
+            var requireCall = ts.createCall(ts.createIdentifier("require"), undefined, arg ? [arg] : []);
+            if (compilerOptions.esModuleInterop) {
+                context.requestEmitHelper(ts.importStarHelper);
+                requireCall = ts.createCall(ts.getUnscopedHelperName("__importStar"), undefined, [requireCall]);
+            }
+            var func;
+            if (languageVersion >= 2) {
+                func = ts.createArrowFunction(undefined, undefined, [], undefined, undefined, requireCall);
+            }
+            else {
+                func = ts.createFunctionExpression(undefined, undefined, undefined, undefined, [], undefined, ts.createBlock([ts.createReturn(requireCall)]));
+                if (containsLexicalThis) {
+                    ts.setEmitFlags(func, 8);
+                }
+            }
+            return ts.createCall(ts.createPropertyAccess(promiseResolveCall, "then"), undefined, [func]);
+        }
+        function getHelperExpressionForExport(node, innerExpr) {
+            if (!compilerOptions.esModuleInterop || ts.getEmitFlags(node) & 67108864) {
+                return innerExpr;
+            }
+            if (ts.getExportNeedsImportStarHelper(node)) {
+                context.requestEmitHelper(ts.importStarHelper);
+                return ts.createCall(ts.getUnscopedHelperName("__importStar"), undefined, [innerExpr]);
+            }
+            return innerExpr;
+        }
+        function getHelperExpressionForImport(node, innerExpr) {
+            if (!compilerOptions.esModuleInterop || ts.getEmitFlags(node) & 67108864) {
+                return innerExpr;
+            }
+            if (ts.getImportNeedsImportStarHelper(node)) {
+                context.requestEmitHelper(ts.importStarHelper);
+                return ts.createCall(ts.getUnscopedHelperName("__importStar"), undefined, [innerExpr]);
+            }
+            if (ts.getImportNeedsImportDefaultHelper(node)) {
+                context.requestEmitHelper(ts.importDefaultHelper);
+                return ts.createCall(ts.getUnscopedHelperName("__importDefault"), undefined, [innerExpr]);
+            }
+            return innerExpr;
+        }
+        function visitImportDeclaration(node) {
+            var statements;
+            var namespaceDeclaration = ts.getNamespaceDeclarationNode(node);
+            if (moduleKind !== ts.ModuleKind.AMD) {
+                if (!node.importClause) {
+                    return ts.setOriginalNode(ts.setTextRange(ts.createExpressionStatement(createRequireCall(node)), node), node);
+                }
+                else {
+                    var variables = [];
+                    if (namespaceDeclaration && !ts.isDefaultImport(node)) {
+                        variables.push(ts.createVariableDeclaration(ts.getSynthesizedClone(namespaceDeclaration.name), undefined, getHelperExpressionForImport(node, createRequireCall(node))));
+                    }
+                    else {
+                        variables.push(ts.createVariableDeclaration(ts.getGeneratedNameForNode(node), undefined, getHelperExpressionForImport(node, createRequireCall(node))));
+                        if (namespaceDeclaration && ts.isDefaultImport(node)) {
+                            variables.push(ts.createVariableDeclaration(ts.getSynthesizedClone(namespaceDeclaration.name), undefined, ts.getGeneratedNameForNode(node)));
+                        }
+                    }
+                    statements = ts.append(statements, ts.setOriginalNode(ts.setTextRange(ts.createVariableStatement(undefined, ts.createVariableDeclarationList(variables, languageVersion >= 2 ? 2 : 0)), node), node));
+                }
+            }
+            else if (namespaceDeclaration && ts.isDefaultImport(node)) {
+                statements = ts.append(statements, ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                    ts.setOriginalNode(ts.setTextRange(ts.createVariableDeclaration(ts.getSynthesizedClone(namespaceDeclaration.name), undefined, ts.getGeneratedNameForNode(node)), node), node)
+                ], languageVersion >= 2 ? 2 : 0)));
+            }
+            if (hasAssociatedEndOfDeclarationMarker(node)) {
+                var id = ts.getOriginalNodeId(node);
+                deferredExports[id] = appendExportsOfImportDeclaration(deferredExports[id], node);
+            }
+            else {
+                statements = appendExportsOfImportDeclaration(statements, node);
+            }
+            return ts.singleOrMany(statements);
+        }
+        function createRequireCall(importNode) {
+            var moduleName = ts.getExternalModuleNameLiteral(importNode, currentSourceFile, host, resolver, compilerOptions);
+            var args = [];
+            if (moduleName) {
+                args.push(moduleName);
+            }
+            return ts.createCall(ts.createIdentifier("require"), undefined, args);
+        }
+        function visitImportEqualsDeclaration(node) {
+            ts.Debug.assert(ts.isExternalModuleImportEqualsDeclaration(node), "import= for internal module references should be handled in an earlier transformer.");
+            var statements;
+            if (moduleKind !== ts.ModuleKind.AMD) {
+                if (ts.hasModifier(node, 1)) {
+                    statements = ts.append(statements, ts.setOriginalNode(ts.setTextRange(ts.createExpressionStatement(createExportExpression(node.name, createRequireCall(node))), node), node));
+                }
+                else {
+                    statements = ts.append(statements, ts.setOriginalNode(ts.setTextRange(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                        ts.createVariableDeclaration(ts.getSynthesizedClone(node.name), undefined, createRequireCall(node))
+                    ], languageVersion >= 2 ? 2 : 0)), node), node));
+                }
+            }
+            else {
+                if (ts.hasModifier(node, 1)) {
+                    statements = ts.append(statements, ts.setOriginalNode(ts.setTextRange(ts.createExpressionStatement(createExportExpression(ts.getExportName(node), ts.getLocalName(node))), node), node));
+                }
+            }
+            if (hasAssociatedEndOfDeclarationMarker(node)) {
+                var id = ts.getOriginalNodeId(node);
+                deferredExports[id] = appendExportsOfImportEqualsDeclaration(deferredExports[id], node);
+            }
+            else {
+                statements = appendExportsOfImportEqualsDeclaration(statements, node);
+            }
+            return ts.singleOrMany(statements);
+        }
+        function visitExportDeclaration(node) {
+            if (!node.moduleSpecifier) {
+                return undefined;
+            }
+            var generatedName = ts.getGeneratedNameForNode(node);
+            if (node.exportClause && ts.isNamedExports(node.exportClause)) {
+                var statements = [];
+                if (moduleKind !== ts.ModuleKind.AMD) {
+                    statements.push(ts.setOriginalNode(ts.setTextRange(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                        ts.createVariableDeclaration(generatedName, undefined, createRequireCall(node))
+                    ])), node), node));
+                }
+                for (var _i = 0, _a = node.exportClause.elements; _i < _a.length; _i++) {
+                    var specifier = _a[_i];
+                    if (languageVersion === 0) {
+                        statements.push(ts.setOriginalNode(ts.setTextRange(ts.createExpressionStatement(createCreateBindingHelper(context, generatedName, ts.createLiteral(specifier.propertyName || specifier.name), specifier.propertyName ? ts.createLiteral(specifier.name) : undefined)), specifier), specifier));
+                    }
+                    else {
+                        var exportedValue = ts.createPropertyAccess(generatedName, specifier.propertyName || specifier.name);
+                        statements.push(ts.setOriginalNode(ts.setTextRange(ts.createExpressionStatement(createExportExpression(ts.getExportName(specifier), exportedValue, undefined, true)), specifier), specifier));
+                    }
+                }
+                return ts.singleOrMany(statements);
+            }
+            else if (node.exportClause) {
+                var statements = [];
+                statements.push(ts.setOriginalNode(ts.setTextRange(ts.createExpressionStatement(createExportExpression(ts.getSynthesizedClone(node.exportClause.name), moduleKind !== ts.ModuleKind.AMD ?
+                    getHelperExpressionForExport(node, createRequireCall(node)) :
+                    ts.createIdentifier(ts.idText(node.exportClause.name)))), node), node));
+                return ts.singleOrMany(statements);
+            }
+            else {
+                return ts.setOriginalNode(ts.setTextRange(ts.createExpressionStatement(createExportStarHelper(context, moduleKind !== ts.ModuleKind.AMD ? createRequireCall(node) : generatedName)), node), node);
+            }
+        }
+        function visitExportAssignment(node) {
+            if (node.isExportEquals) {
+                return undefined;
+            }
+            var statements;
+            var original = node.original;
+            if (original && hasAssociatedEndOfDeclarationMarker(original)) {
+                var id = ts.getOriginalNodeId(node);
+                deferredExports[id] = appendExportStatement(deferredExports[id], ts.createIdentifier("default"), ts.visitNode(node.expression, moduleExpressionElementVisitor), node, true);
+            }
+            else {
+                statements = appendExportStatement(statements, ts.createIdentifier("default"), ts.visitNode(node.expression, moduleExpressionElementVisitor), node, true);
+            }
+            return ts.singleOrMany(statements);
+        }
+        function visitFunctionDeclaration(node) {
+            var statements;
+            if (ts.hasModifier(node, 1)) {
+                statements = ts.append(statements, ts.setOriginalNode(ts.setTextRange(ts.createFunctionDeclaration(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, ts.getDeclarationName(node, true, true), undefined, ts.visitNodes(node.parameters, moduleExpressionElementVisitor), undefined, ts.visitEachChild(node.body, moduleExpressionElementVisitor, context)), node), node));
+            }
+            else {
+                statements = ts.append(statements, ts.visitEachChild(node, moduleExpressionElementVisitor, context));
+            }
+            if (hasAssociatedEndOfDeclarationMarker(node)) {
+                var id = ts.getOriginalNodeId(node);
+                deferredExports[id] = appendExportsOfHoistedDeclaration(deferredExports[id], node);
+            }
+            else {
+                statements = appendExportsOfHoistedDeclaration(statements, node);
+            }
+            return ts.singleOrMany(statements);
+        }
+        function visitClassDeclaration(node) {
+            var statements;
+            if (ts.hasModifier(node, 1)) {
+                statements = ts.append(statements, ts.setOriginalNode(ts.setTextRange(ts.createClassDeclaration(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), ts.getDeclarationName(node, true, true), undefined, ts.visitNodes(node.heritageClauses, moduleExpressionElementVisitor), ts.visitNodes(node.members, moduleExpressionElementVisitor)), node), node));
+            }
+            else {
+                statements = ts.append(statements, ts.visitEachChild(node, moduleExpressionElementVisitor, context));
+            }
+            if (hasAssociatedEndOfDeclarationMarker(node)) {
+                var id = ts.getOriginalNodeId(node);
+                deferredExports[id] = appendExportsOfHoistedDeclaration(deferredExports[id], node);
+            }
+            else {
+                statements = appendExportsOfHoistedDeclaration(statements, node);
+            }
+            return ts.singleOrMany(statements);
+        }
+        function visitVariableStatement(node) {
+            var statements;
+            var variables;
+            var expressions;
+            if (ts.hasModifier(node, 1)) {
+                var modifiers = void 0;
+                for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
+                    var variable = _a[_i];
+                    if (ts.isIdentifier(variable.name) && ts.isLocalName(variable.name)) {
+                        if (!modifiers) {
+                            modifiers = ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier);
+                        }
+                        variables = ts.append(variables, variable);
+                    }
+                    else if (variable.initializer) {
+                        expressions = ts.append(expressions, transformInitializedVariable(variable));
+                    }
+                }
+                if (variables) {
+                    statements = ts.append(statements, ts.updateVariableStatement(node, modifiers, ts.updateVariableDeclarationList(node.declarationList, variables)));
+                }
+                if (expressions) {
+                    statements = ts.append(statements, ts.setOriginalNode(ts.setTextRange(ts.createExpressionStatement(ts.inlineExpressions(expressions)), node), node));
+                }
+            }
+            else {
+                statements = ts.append(statements, ts.visitEachChild(node, moduleExpressionElementVisitor, context));
+            }
+            if (hasAssociatedEndOfDeclarationMarker(node)) {
+                var id = ts.getOriginalNodeId(node);
+                deferredExports[id] = appendExportsOfVariableStatement(deferredExports[id], node);
+            }
+            else {
+                statements = appendExportsOfVariableStatement(statements, node);
+            }
+            return ts.singleOrMany(statements);
+        }
+        function createAllExportExpressions(name, value, location) {
+            var exportedNames = getExports(name);
+            if (exportedNames) {
+                var expression = ts.isExportName(name) ? value : ts.createAssignment(name, value);
+                for (var _i = 0, exportedNames_1 = exportedNames; _i < exportedNames_1.length; _i++) {
+                    var exportName = exportedNames_1[_i];
+                    ts.setEmitFlags(expression, 4);
+                    expression = createExportExpression(exportName, expression, location);
+                }
+                return expression;
+            }
+            return ts.createAssignment(name, value);
+        }
+        function transformInitializedVariable(node) {
+            if (ts.isBindingPattern(node.name)) {
+                return ts.flattenDestructuringAssignment(ts.visitNode(node, moduleExpressionElementVisitor), undefined, context, 0, false, createAllExportExpressions);
+            }
+            else {
+                return ts.createAssignment(ts.setTextRange(ts.createPropertyAccess(ts.createIdentifier("exports"), node.name), node.name), node.initializer ? ts.visitNode(node.initializer, moduleExpressionElementVisitor) : ts.createVoidZero());
+            }
+        }
+        function visitMergeDeclarationMarker(node) {
+            if (hasAssociatedEndOfDeclarationMarker(node) && node.original.kind === 225) {
+                var id = ts.getOriginalNodeId(node);
+                deferredExports[id] = appendExportsOfVariableStatement(deferredExports[id], node.original);
+            }
+            return node;
+        }
+        function hasAssociatedEndOfDeclarationMarker(node) {
+            return (ts.getEmitFlags(node) & 4194304) !== 0;
+        }
+        function visitEndOfDeclarationMarker(node) {
+            var id = ts.getOriginalNodeId(node);
+            var statements = deferredExports[id];
+            if (statements) {
+                delete deferredExports[id];
+                return ts.append(statements, node);
+            }
+            return node;
+        }
+        function appendExportsOfImportDeclaration(statements, decl) {
+            if (currentModuleInfo.exportEquals) {
+                return statements;
+            }
+            var importClause = decl.importClause;
+            if (!importClause) {
+                return statements;
+            }
+            if (importClause.name) {
+                statements = appendExportsOfDeclaration(statements, importClause);
+            }
+            var namedBindings = importClause.namedBindings;
+            if (namedBindings) {
+                switch (namedBindings.kind) {
+                    case 256:
+                        statements = appendExportsOfDeclaration(statements, namedBindings);
+                        break;
+                    case 257:
+                        for (var _i = 0, _a = namedBindings.elements; _i < _a.length; _i++) {
+                            var importBinding = _a[_i];
+                            statements = appendExportsOfDeclaration(statements, importBinding, true);
+                        }
+                        break;
+                }
+            }
+            return statements;
+        }
+        function appendExportsOfImportEqualsDeclaration(statements, decl) {
+            if (currentModuleInfo.exportEquals) {
+                return statements;
+            }
+            return appendExportsOfDeclaration(statements, decl);
+        }
+        function appendExportsOfVariableStatement(statements, node) {
+            if (currentModuleInfo.exportEquals) {
+                return statements;
+            }
+            for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
+                var decl = _a[_i];
+                statements = appendExportsOfBindingElement(statements, decl);
+            }
+            return statements;
+        }
+        function appendExportsOfBindingElement(statements, decl) {
+            if (currentModuleInfo.exportEquals) {
+                return statements;
+            }
+            if (ts.isBindingPattern(decl.name)) {
+                for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
+                    var element = _a[_i];
+                    if (!ts.isOmittedExpression(element)) {
+                        statements = appendExportsOfBindingElement(statements, element);
+                    }
+                }
+            }
+            else if (!ts.isGeneratedIdentifier(decl.name)) {
+                statements = appendExportsOfDeclaration(statements, decl);
+            }
+            return statements;
+        }
+        function appendExportsOfHoistedDeclaration(statements, decl) {
+            if (currentModuleInfo.exportEquals) {
+                return statements;
+            }
+            if (ts.hasModifier(decl, 1)) {
+                var exportName = ts.hasModifier(decl, 512) ? ts.createIdentifier("default") : ts.getDeclarationName(decl);
+                statements = appendExportStatement(statements, exportName, ts.getLocalName(decl), decl);
+            }
+            if (decl.name) {
+                statements = appendExportsOfDeclaration(statements, decl);
+            }
+            return statements;
+        }
+        function appendExportsOfDeclaration(statements, decl, liveBinding) {
+            var name = ts.getDeclarationName(decl);
+            var exportSpecifiers = currentModuleInfo.exportSpecifiers.get(ts.idText(name));
+            if (exportSpecifiers) {
+                for (var _i = 0, exportSpecifiers_1 = exportSpecifiers; _i < exportSpecifiers_1.length; _i++) {
+                    var exportSpecifier = exportSpecifiers_1[_i];
+                    statements = appendExportStatement(statements, exportSpecifier.name, name, exportSpecifier.name, undefined, liveBinding);
+                }
+            }
+            return statements;
+        }
+        function appendExportStatement(statements, exportName, expression, location, allowComments, liveBinding) {
+            statements = ts.append(statements, createExportStatement(exportName, expression, location, allowComments, liveBinding));
+            return statements;
+        }
+        function createUnderscoreUnderscoreESModule() {
+            var statement;
+            if (languageVersion === 0) {
+                statement = ts.createExpressionStatement(createExportExpression(ts.createIdentifier("__esModule"), ts.createLiteral(true)));
+            }
+            else {
+                statement = ts.createExpressionStatement(ts.createCall(ts.createPropertyAccess(ts.createIdentifier("Object"), "defineProperty"), undefined, [
+                    ts.createIdentifier("exports"),
+                    ts.createLiteral("__esModule"),
+                    ts.createObjectLiteral([
+                        ts.createPropertyAssignment("value", ts.createLiteral(true))
+                    ])
+                ]));
+            }
+            ts.setEmitFlags(statement, 1048576);
+            return statement;
+        }
+        function createExportStatement(name, value, location, allowComments, liveBinding) {
+            var statement = ts.setTextRange(ts.createExpressionStatement(createExportExpression(name, value, undefined, liveBinding)), location);
+            ts.startOnNewLine(statement);
+            if (!allowComments) {
+                ts.setEmitFlags(statement, 1536);
+            }
+            return statement;
+        }
+        function createExportExpression(name, value, location, liveBinding) {
+            return ts.setTextRange(liveBinding && languageVersion !== 0 ? ts.createCall(ts.createPropertyAccess(ts.createIdentifier("Object"), "defineProperty"), undefined, [
+                ts.createIdentifier("exports"),
+                ts.createLiteral(name),
+                ts.createObjectLiteral([
+                    ts.createPropertyAssignment("enumerable", ts.createLiteral(true)),
+                    ts.createPropertyAssignment("get", ts.createFunctionExpression(undefined, undefined, undefined, undefined, [], undefined, ts.createBlock([ts.createReturn(value)])))
+                ])
+            ]) : ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("exports"), ts.getSynthesizedClone(name)), value), location);
+        }
+        function modifierVisitor(node) {
+            switch (node.kind) {
+                case 89:
+                case 84:
+                    return undefined;
+            }
+            return node;
+        }
+        function onEmitNode(hint, node, emitCallback) {
+            if (node.kind === 290) {
+                currentSourceFile = node;
+                currentModuleInfo = moduleInfoMap[ts.getOriginalNodeId(currentSourceFile)];
+                noSubstitution = [];
+                previousOnEmitNode(hint, node, emitCallback);
+                currentSourceFile = undefined;
+                currentModuleInfo = undefined;
+                noSubstitution = undefined;
+            }
+            else {
+                previousOnEmitNode(hint, node, emitCallback);
+            }
+        }
+        function onSubstituteNode(hint, node) {
+            node = previousOnSubstituteNode(hint, node);
+            if (node.id && noSubstitution[node.id]) {
+                return node;
+            }
+            if (hint === 1) {
+                return substituteExpression(node);
+            }
+            else if (ts.isShorthandPropertyAssignment(node)) {
+                return substituteShorthandPropertyAssignment(node);
+            }
+            return node;
+        }
+        function substituteShorthandPropertyAssignment(node) {
+            var name = node.name;
+            var exportedOrImportedName = substituteExpressionIdentifier(name);
+            if (exportedOrImportedName !== name) {
+                if (node.objectAssignmentInitializer) {
+                    var initializer = ts.createAssignment(exportedOrImportedName, node.objectAssignmentInitializer);
+                    return ts.setTextRange(ts.createPropertyAssignment(name, initializer), node);
+                }
+                return ts.setTextRange(ts.createPropertyAssignment(name, exportedOrImportedName), node);
+            }
+            return node;
+        }
+        function substituteExpression(node) {
+            switch (node.kind) {
+                case 75:
+                    return substituteExpressionIdentifier(node);
+                case 209:
+                    return substituteBinaryExpression(node);
+                case 208:
+                case 207:
+                    return substituteUnaryExpression(node);
+            }
+            return node;
+        }
+        function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+                return node;
+            }
+            if (!ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
+                var exportContainer = resolver.getReferencedExportContainer(node, ts.isExportName(node));
+                if (exportContainer && exportContainer.kind === 290) {
+                    return ts.setTextRange(ts.createPropertyAccess(ts.createIdentifier("exports"), ts.getSynthesizedClone(node)), node);
+                }
+                var importDeclaration = resolver.getReferencedImportDeclaration(node);
+                if (importDeclaration) {
+                    if (ts.isImportClause(importDeclaration)) {
+                        return ts.setTextRange(ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent), ts.createIdentifier("default")), node);
+                    }
+                    else if (ts.isImportSpecifier(importDeclaration)) {
+                        var name = importDeclaration.propertyName || importDeclaration.name;
+                        return ts.setTextRange(ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent.parent.parent), ts.getSynthesizedClone(name)), node);
+                    }
+                }
+            }
+            return node;
+        }
+        function substituteBinaryExpression(node) {
+            if (ts.isAssignmentOperator(node.operatorToken.kind)
+                && ts.isIdentifier(node.left)
+                && !ts.isGeneratedIdentifier(node.left)
+                && !ts.isLocalName(node.left)
+                && !ts.isDeclarationNameOfEnumOrNamespace(node.left)) {
+                var exportedNames = getExports(node.left);
+                if (exportedNames) {
+                    var expression = node;
+                    for (var _i = 0, exportedNames_2 = exportedNames; _i < exportedNames_2.length; _i++) {
+                        var exportName = exportedNames_2[_i];
+                        noSubstitution[ts.getNodeId(expression)] = true;
+                        expression = createExportExpression(exportName, expression, node);
+                    }
+                    return expression;
+                }
+            }
+            return node;
+        }
+        function substituteUnaryExpression(node) {
+            if ((node.operator === 45 || node.operator === 46)
+                && ts.isIdentifier(node.operand)
+                && !ts.isGeneratedIdentifier(node.operand)
+                && !ts.isLocalName(node.operand)
+                && !ts.isDeclarationNameOfEnumOrNamespace(node.operand)) {
+                var exportedNames = getExports(node.operand);
+                if (exportedNames) {
+                    var expression = node.kind === 208
+                        ? ts.setTextRange(ts.createBinary(node.operand, ts.createToken(node.operator === 45 ? 63 : 64), ts.createLiteral(1)), node)
+                        : node;
+                    for (var _i = 0, exportedNames_3 = exportedNames; _i < exportedNames_3.length; _i++) {
+                        var exportName = exportedNames_3[_i];
+                        noSubstitution[ts.getNodeId(expression)] = true;
+                        expression = createExportExpression(exportName, expression);
+                    }
+                    return expression;
+                }
+            }
+            return node;
+        }
+        function getExports(name) {
+            if (!ts.isGeneratedIdentifier(name)) {
+                var valueDeclaration = resolver.getReferencedImportDeclaration(name)
+                    || resolver.getReferencedValueDeclaration(name);
+                if (valueDeclaration) {
+                    return currentModuleInfo
+                        && currentModuleInfo.exportedBindings[ts.getOriginalNodeId(valueDeclaration)];
+                }
+            }
+        }
+    }
+    ts.transformModule = transformModule;
+    ts.createBindingHelper = {
+        name: "typescript:commonjscreatebinding",
+        importName: "__createBinding",
+        scoped: false,
+        priority: 1,
+        text: "\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n    if (k2 === undefined) k2 = k;\n    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\n}) : (function(o, m, k, k2) {\n    if (k2 === undefined) k2 = k;\n    o[k2] = m[k];\n}));"
+    };
+    function createCreateBindingHelper(context, module, inputName, outputName) {
+        context.requestEmitHelper(ts.createBindingHelper);
+        return ts.createCall(ts.getUnscopedHelperName("__createBinding"), undefined, __spreadArrays([ts.createIdentifier("exports"), module, inputName], (outputName ? [outputName] : [])));
+    }
+    ts.setModuleDefaultHelper = {
+        name: "typescript:commonjscreatevalue",
+        importName: "__setModuleDefault",
+        scoped: false,
+        priority: 1,
+        text: "\nvar __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {\n    Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n    o[\"default\"] = v;\n});"
+    };
+    var exportStarHelper = {
+        name: "typescript:export-star",
+        importName: "__exportStar",
+        scoped: false,
+        dependencies: [ts.createBindingHelper],
+        priority: 2,
+        text: "\n            var __exportStar = (this && this.__exportStar) || function(m, exports) {\n                for (var p in m) if (p !== \"default\" && !exports.hasOwnProperty(p)) __createBinding(exports, m, p);\n            };"
+    };
+    function createExportStarHelper(context, module) {
+        context.requestEmitHelper(exportStarHelper);
+        return ts.createCall(ts.getUnscopedHelperName("__exportStar"), undefined, [module, ts.createIdentifier("exports")]);
+    }
+    var dynamicImportUMDHelper = {
+        name: "typescript:dynamicimport-sync-require",
+        scoped: true,
+        text: "\n            var __syncRequire = typeof module === \"object\" && typeof module.exports === \"object\";"
+    };
+    ts.importStarHelper = {
+        name: "typescript:commonjsimportstar",
+        importName: "__importStar",
+        scoped: false,
+        dependencies: [ts.createBindingHelper, ts.setModuleDefaultHelper],
+        priority: 2,
+        text: "\nvar __importStar = (this && this.__importStar) || function (mod) {\n    if (mod && mod.__esModule) return mod;\n    var result = {};\n    if (mod != null) for (var k in mod) if (k !== \"default\" && Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n    __setModuleDefault(result, mod);\n    return result;\n};"
+    };
+    ts.importDefaultHelper = {
+        name: "typescript:commonjsimportdefault",
+        importName: "__importDefault",
+        scoped: false,
+        text: "\nvar __importDefault = (this && this.__importDefault) || function (mod) {\n    return (mod && mod.__esModule) ? mod : { \"default\": mod };\n};"
+    };
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformSystemModule(context) {
+        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var compilerOptions = context.getCompilerOptions();
+        var resolver = context.getEmitResolver();
+        var host = context.getEmitHost();
+        var previousOnSubstituteNode = context.onSubstituteNode;
+        var previousOnEmitNode = context.onEmitNode;
+        context.onSubstituteNode = onSubstituteNode;
+        context.onEmitNode = onEmitNode;
+        context.enableSubstitution(75);
+        context.enableSubstitution(282);
+        context.enableSubstitution(209);
+        context.enableSubstitution(207);
+        context.enableSubstitution(208);
+        context.enableSubstitution(219);
+        context.enableEmitNotification(290);
+        var moduleInfoMap = [];
+        var deferredExports = [];
+        var exportFunctionsMap = [];
+        var noSubstitutionMap = [];
+        var contextObjectMap = [];
+        var currentSourceFile;
+        var moduleInfo;
+        var exportFunction;
+        var contextObject;
+        var hoistedStatements;
+        var enclosingBlockScopedContainer;
+        var noSubstitution;
+        return ts.chainBundle(transformSourceFile);
+        function transformSourceFile(node) {
+            if (node.isDeclarationFile || !(ts.isEffectiveExternalModule(node, compilerOptions) || node.transformFlags & 2097152)) {
+                return node;
+            }
+            var id = ts.getOriginalNodeId(node);
+            currentSourceFile = node;
+            enclosingBlockScopedContainer = node;
+            moduleInfo = moduleInfoMap[id] = ts.collectExternalModuleInfo(node, resolver, compilerOptions);
+            exportFunction = ts.createUniqueName("exports");
+            exportFunctionsMap[id] = exportFunction;
+            contextObject = contextObjectMap[id] = ts.createUniqueName("context");
+            var dependencyGroups = collectDependencyGroups(moduleInfo.externalImports);
+            var moduleBodyBlock = createSystemModuleBody(node, dependencyGroups);
+            var moduleBodyFunction = ts.createFunctionExpression(undefined, undefined, undefined, undefined, [
+                ts.createParameter(undefined, undefined, undefined, exportFunction),
+                ts.createParameter(undefined, undefined, undefined, contextObject)
+            ], undefined, moduleBodyBlock);
+            var moduleName = ts.tryGetModuleNameFromFile(node, host, compilerOptions);
+            var dependencies = ts.createArrayLiteral(ts.map(dependencyGroups, function (dependencyGroup) { return dependencyGroup.name; }));
+            var updated = ts.setEmitFlags(ts.updateSourceFileNode(node, ts.setTextRange(ts.createNodeArray([
+                ts.createExpressionStatement(ts.createCall(ts.createPropertyAccess(ts.createIdentifier("System"), "register"), undefined, moduleName
+                    ? [moduleName, dependencies, moduleBodyFunction]
+                    : [dependencies, moduleBodyFunction]))
+            ]), node.statements)), 1024);
+            if (!(compilerOptions.outFile || compilerOptions.out)) {
+                ts.moveEmitHelpers(updated, moduleBodyBlock, function (helper) { return !helper.scoped; });
+            }
+            if (noSubstitution) {
+                noSubstitutionMap[id] = noSubstitution;
+                noSubstitution = undefined;
+            }
+            currentSourceFile = undefined;
+            moduleInfo = undefined;
+            exportFunction = undefined;
+            contextObject = undefined;
+            hoistedStatements = undefined;
+            enclosingBlockScopedContainer = undefined;
+            return ts.aggregateTransformFlags(updated);
+        }
+        function collectDependencyGroups(externalImports) {
+            var groupIndices = ts.createMap();
+            var dependencyGroups = [];
+            for (var _i = 0, externalImports_1 = externalImports; _i < externalImports_1.length; _i++) {
+                var externalImport = externalImports_1[_i];
+                var externalModuleName = ts.getExternalModuleNameLiteral(externalImport, currentSourceFile, host, resolver, compilerOptions);
+                if (externalModuleName) {
+                    var text = externalModuleName.text;
+                    var groupIndex = groupIndices.get(text);
+                    if (groupIndex !== undefined) {
+                        dependencyGroups[groupIndex].externalImports.push(externalImport);
+                    }
+                    else {
+                        groupIndices.set(text, dependencyGroups.length);
+                        dependencyGroups.push({
+                            name: externalModuleName,
+                            externalImports: [externalImport]
+                        });
+                    }
+                }
+            }
+            return dependencyGroups;
+        }
+        function createSystemModuleBody(node, dependencyGroups) {
+            var statements = [];
+            startLexicalEnvironment();
+            var ensureUseStrict = ts.getStrictOptionValue(compilerOptions, "alwaysStrict") || (!compilerOptions.noImplicitUseStrict && ts.isExternalModule(currentSourceFile));
+            var statementOffset = ts.addPrologue(statements, node.statements, ensureUseStrict, sourceElementVisitor);
+            statements.push(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                ts.createVariableDeclaration("__moduleName", undefined, ts.createLogicalAnd(contextObject, ts.createPropertyAccess(contextObject, "id")))
+            ])));
+            ts.visitNode(moduleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement);
+            var executeStatements = ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset);
+            ts.addRange(statements, hoistedStatements);
+            ts.insertStatementsAfterStandardPrologue(statements, endLexicalEnvironment());
+            var exportStarFunction = addExportStarIfNeeded(statements);
+            var modifiers = node.transformFlags & 524288 ?
+                ts.createModifiersFromModifierFlags(256) :
+                undefined;
+            var moduleObject = ts.createObjectLiteral([
+                ts.createPropertyAssignment("setters", createSettersArray(exportStarFunction, dependencyGroups)),
+                ts.createPropertyAssignment("execute", ts.createFunctionExpression(modifiers, undefined, undefined, undefined, [], undefined, ts.createBlock(executeStatements, true)))
+            ]);
+            moduleObject.multiLine = true;
+            statements.push(ts.createReturn(moduleObject));
+            return ts.createBlock(statements, true);
+        }
+        function addExportStarIfNeeded(statements) {
+            if (!moduleInfo.hasExportStarsToExportValues) {
+                return;
+            }
+            if (!moduleInfo.exportedNames && moduleInfo.exportSpecifiers.size === 0) {
+                var hasExportDeclarationWithExportClause = false;
+                for (var _i = 0, _a = moduleInfo.externalImports; _i < _a.length; _i++) {
+                    var externalImport = _a[_i];
+                    if (externalImport.kind === 260 && externalImport.exportClause) {
+                        hasExportDeclarationWithExportClause = true;
+                        break;
+                    }
+                }
+                if (!hasExportDeclarationWithExportClause) {
+                    var exportStarFunction_1 = createExportStarFunction(undefined);
+                    statements.push(exportStarFunction_1);
+                    return exportStarFunction_1.name;
+                }
+            }
+            var exportedNames = [];
+            if (moduleInfo.exportedNames) {
+                for (var _b = 0, _c = moduleInfo.exportedNames; _b < _c.length; _b++) {
+                    var exportedLocalName = _c[_b];
+                    if (exportedLocalName.escapedText === "default") {
+                        continue;
+                    }
+                    exportedNames.push(ts.createPropertyAssignment(ts.createLiteral(exportedLocalName), ts.createTrue()));
+                }
+            }
+            for (var _d = 0, _e = moduleInfo.externalImports; _d < _e.length; _d++) {
+                var externalImport = _e[_d];
+                if (externalImport.kind !== 260) {
+                    continue;
+                }
+                if (!externalImport.exportClause) {
+                    continue;
+                }
+                if (ts.isNamedExports(externalImport.exportClause)) {
+                    for (var _f = 0, _g = externalImport.exportClause.elements; _f < _g.length; _f++) {
+                        var element = _g[_f];
+                        exportedNames.push(ts.createPropertyAssignment(ts.createLiteral(ts.idText(element.name || element.propertyName)), ts.createTrue()));
+                    }
+                }
+                else {
+                    exportedNames.push(ts.createPropertyAssignment(ts.createLiteral(ts.idText(externalImport.exportClause.name)), ts.createTrue()));
+                }
+            }
+            var exportedNamesStorageRef = ts.createUniqueName("exportedNames");
+            statements.push(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(exportedNamesStorageRef, undefined, ts.createObjectLiteral(exportedNames, true))
+            ])));
+            var exportStarFunction = createExportStarFunction(exportedNamesStorageRef);
+            statements.push(exportStarFunction);
+            return exportStarFunction.name;
+        }
+        function createExportStarFunction(localNames) {
+            var exportStarFunction = ts.createUniqueName("exportStar");
+            var m = ts.createIdentifier("m");
+            var n = ts.createIdentifier("n");
+            var exports = ts.createIdentifier("exports");
+            var condition = ts.createStrictInequality(n, ts.createLiteral("default"));
+            if (localNames) {
+                condition = ts.createLogicalAnd(condition, ts.createLogicalNot(ts.createCall(ts.createPropertyAccess(localNames, "hasOwnProperty"), undefined, [n])));
+            }
+            return ts.createFunctionDeclaration(undefined, undefined, undefined, exportStarFunction, undefined, [ts.createParameter(undefined, undefined, undefined, m)], undefined, ts.createBlock([
+                ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                    ts.createVariableDeclaration(exports, undefined, ts.createObjectLiteral([]))
+                ])),
+                ts.createForIn(ts.createVariableDeclarationList([
+                    ts.createVariableDeclaration(n, undefined)
+                ]), m, ts.createBlock([
+                    ts.setEmitFlags(ts.createIf(condition, ts.createExpressionStatement(ts.createAssignment(ts.createElementAccess(exports, n), ts.createElementAccess(m, n)))), 1)
+                ])),
+                ts.createExpressionStatement(ts.createCall(exportFunction, undefined, [exports]))
+            ], true));
+        }
+        function createSettersArray(exportStarFunction, dependencyGroups) {
+            var setters = [];
+            for (var _i = 0, dependencyGroups_1 = dependencyGroups; _i < dependencyGroups_1.length; _i++) {
+                var group_2 = dependencyGroups_1[_i];
+                var localName = ts.forEach(group_2.externalImports, function (i) { return ts.getLocalNameForExternalImport(i, currentSourceFile); });
+                var parameterName = localName ? ts.getGeneratedNameForNode(localName) : ts.createUniqueName("");
+                var statements = [];
+                for (var _a = 0, _b = group_2.externalImports; _a < _b.length; _a++) {
+                    var entry = _b[_a];
+                    var importVariableName = ts.getLocalNameForExternalImport(entry, currentSourceFile);
+                    switch (entry.kind) {
+                        case 254:
+                            if (!entry.importClause) {
+                                break;
+                            }
+                        case 253:
+                            ts.Debug.assert(importVariableName !== undefined);
+                            statements.push(ts.createExpressionStatement(ts.createAssignment(importVariableName, parameterName)));
+                            break;
+                        case 260:
+                            ts.Debug.assert(importVariableName !== undefined);
+                            if (entry.exportClause) {
+                                if (ts.isNamedExports(entry.exportClause)) {
+                                    var properties = [];
+                                    for (var _c = 0, _d = entry.exportClause.elements; _c < _d.length; _c++) {
+                                        var e = _d[_c];
+                                        properties.push(ts.createPropertyAssignment(ts.createLiteral(ts.idText(e.name)), ts.createElementAccess(parameterName, ts.createLiteral(ts.idText(e.propertyName || e.name)))));
+                                    }
+                                    statements.push(ts.createExpressionStatement(ts.createCall(exportFunction, undefined, [ts.createObjectLiteral(properties, true)])));
+                                }
+                                else {
+                                    statements.push(ts.createExpressionStatement(ts.createCall(exportFunction, undefined, [
+                                        ts.createLiteral(ts.idText(entry.exportClause.name)),
+                                        parameterName
+                                    ])));
+                                }
+                            }
+                            else {
+                                statements.push(ts.createExpressionStatement(ts.createCall(exportStarFunction, undefined, [parameterName])));
+                            }
+                            break;
+                    }
+                }
+                setters.push(ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, parameterName)], undefined, ts.createBlock(statements, true)));
+            }
+            return ts.createArrayLiteral(setters, true);
+        }
+        function sourceElementVisitor(node) {
+            switch (node.kind) {
+                case 254:
+                    return visitImportDeclaration(node);
+                case 253:
+                    return visitImportEqualsDeclaration(node);
+                case 260:
+                    return visitExportDeclaration(node);
+                case 259:
+                    return visitExportAssignment(node);
+                default:
+                    return nestedElementVisitor(node);
+            }
+        }
+        function visitImportDeclaration(node) {
+            var statements;
+            if (node.importClause) {
+                hoistVariableDeclaration(ts.getLocalNameForExternalImport(node, currentSourceFile));
+            }
+            if (hasAssociatedEndOfDeclarationMarker(node)) {
+                var id = ts.getOriginalNodeId(node);
+                deferredExports[id] = appendExportsOfImportDeclaration(deferredExports[id], node);
+            }
+            else {
+                statements = appendExportsOfImportDeclaration(statements, node);
+            }
+            return ts.singleOrMany(statements);
+        }
+        function visitExportDeclaration(node) {
+            ts.Debug.assertIsDefined(node);
+            return undefined;
+        }
+        function visitImportEqualsDeclaration(node) {
+            ts.Debug.assert(ts.isExternalModuleImportEqualsDeclaration(node), "import= for internal module references should be handled in an earlier transformer.");
+            var statements;
+            hoistVariableDeclaration(ts.getLocalNameForExternalImport(node, currentSourceFile));
+            if (hasAssociatedEndOfDeclarationMarker(node)) {
+                var id = ts.getOriginalNodeId(node);
+                deferredExports[id] = appendExportsOfImportEqualsDeclaration(deferredExports[id], node);
+            }
+            else {
+                statements = appendExportsOfImportEqualsDeclaration(statements, node);
+            }
+            return ts.singleOrMany(statements);
+        }
+        function visitExportAssignment(node) {
+            if (node.isExportEquals) {
+                return undefined;
+            }
+            var expression = ts.visitNode(node.expression, destructuringAndImportCallVisitor, ts.isExpression);
+            var original = node.original;
+            if (original && hasAssociatedEndOfDeclarationMarker(original)) {
+                var id = ts.getOriginalNodeId(node);
+                deferredExports[id] = appendExportStatement(deferredExports[id], ts.createIdentifier("default"), expression, true);
+            }
+            else {
+                return createExportStatement(ts.createIdentifier("default"), expression, true);
+            }
+        }
+        function visitFunctionDeclaration(node) {
+            if (ts.hasModifier(node, 1)) {
+                hoistedStatements = ts.append(hoistedStatements, ts.updateFunctionDeclaration(node, node.decorators, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, ts.getDeclarationName(node, true, true), undefined, ts.visitNodes(node.parameters, destructuringAndImportCallVisitor, ts.isParameterDeclaration), undefined, ts.visitNode(node.body, destructuringAndImportCallVisitor, ts.isBlock)));
+            }
+            else {
+                hoistedStatements = ts.append(hoistedStatements, ts.visitEachChild(node, destructuringAndImportCallVisitor, context));
+            }
+            if (hasAssociatedEndOfDeclarationMarker(node)) {
+                var id = ts.getOriginalNodeId(node);
+                deferredExports[id] = appendExportsOfHoistedDeclaration(deferredExports[id], node);
+            }
+            else {
+                hoistedStatements = appendExportsOfHoistedDeclaration(hoistedStatements, node);
+            }
+            return undefined;
+        }
+        function visitClassDeclaration(node) {
+            var statements;
+            var name = ts.getLocalName(node);
+            hoistVariableDeclaration(name);
+            statements = ts.append(statements, ts.setTextRange(ts.createExpressionStatement(ts.createAssignment(name, ts.setTextRange(ts.createClassExpression(undefined, node.name, undefined, ts.visitNodes(node.heritageClauses, destructuringAndImportCallVisitor, ts.isHeritageClause), ts.visitNodes(node.members, destructuringAndImportCallVisitor, ts.isClassElement)), node))), node));
+            if (hasAssociatedEndOfDeclarationMarker(node)) {
+                var id = ts.getOriginalNodeId(node);
+                deferredExports[id] = appendExportsOfHoistedDeclaration(deferredExports[id], node);
+            }
+            else {
+                statements = appendExportsOfHoistedDeclaration(statements, node);
+            }
+            return ts.singleOrMany(statements);
+        }
+        function visitVariableStatement(node) {
+            if (!shouldHoistVariableDeclarationList(node.declarationList)) {
+                return ts.visitNode(node, destructuringAndImportCallVisitor, ts.isStatement);
+            }
+            var expressions;
+            var isExportedDeclaration = ts.hasModifier(node, 1);
+            var isMarkedDeclaration = hasAssociatedEndOfDeclarationMarker(node);
+            for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
+                var variable = _a[_i];
+                if (variable.initializer) {
+                    expressions = ts.append(expressions, transformInitializedVariable(variable, isExportedDeclaration && !isMarkedDeclaration));
+                }
+                else {
+                    hoistBindingElement(variable);
+                }
+            }
+            var statements;
+            if (expressions) {
+                statements = ts.append(statements, ts.setTextRange(ts.createExpressionStatement(ts.inlineExpressions(expressions)), node));
+            }
+            if (isMarkedDeclaration) {
+                var id = ts.getOriginalNodeId(node);
+                deferredExports[id] = appendExportsOfVariableStatement(deferredExports[id], node, isExportedDeclaration);
+            }
+            else {
+                statements = appendExportsOfVariableStatement(statements, node, false);
+            }
+            return ts.singleOrMany(statements);
+        }
+        function hoistBindingElement(node) {
+            if (ts.isBindingPattern(node.name)) {
+                for (var _i = 0, _a = node.name.elements; _i < _a.length; _i++) {
+                    var element = _a[_i];
+                    if (!ts.isOmittedExpression(element)) {
+                        hoistBindingElement(element);
+                    }
+                }
+            }
+            else {
+                hoistVariableDeclaration(ts.getSynthesizedClone(node.name));
+            }
+        }
+        function shouldHoistVariableDeclarationList(node) {
+            return (ts.getEmitFlags(node) & 2097152) === 0
+                && (enclosingBlockScopedContainer.kind === 290
+                    || (ts.getOriginalNode(node).flags & 3) === 0);
+        }
+        function transformInitializedVariable(node, isExportedDeclaration) {
+            var createAssignment = isExportedDeclaration ? createExportedVariableAssignment : createNonExportedVariableAssignment;
+            return ts.isBindingPattern(node.name)
+                ? ts.flattenDestructuringAssignment(node, destructuringAndImportCallVisitor, context, 0, false, createAssignment)
+                : node.initializer ? createAssignment(node.name, ts.visitNode(node.initializer, destructuringAndImportCallVisitor, ts.isExpression)) : node.name;
+        }
+        function createExportedVariableAssignment(name, value, location) {
+            return createVariableAssignment(name, value, location, true);
+        }
+        function createNonExportedVariableAssignment(name, value, location) {
+            return createVariableAssignment(name, value, location, false);
+        }
+        function createVariableAssignment(name, value, location, isExportedDeclaration) {
+            hoistVariableDeclaration(ts.getSynthesizedClone(name));
+            return isExportedDeclaration
+                ? createExportExpression(name, preventSubstitution(ts.setTextRange(ts.createAssignment(name, value), location)))
+                : preventSubstitution(ts.setTextRange(ts.createAssignment(name, value), location));
+        }
+        function visitMergeDeclarationMarker(node) {
+            if (hasAssociatedEndOfDeclarationMarker(node) && node.original.kind === 225) {
+                var id = ts.getOriginalNodeId(node);
+                var isExportedDeclaration = ts.hasModifier(node.original, 1);
+                deferredExports[id] = appendExportsOfVariableStatement(deferredExports[id], node.original, isExportedDeclaration);
+            }
+            return node;
+        }
+        function hasAssociatedEndOfDeclarationMarker(node) {
+            return (ts.getEmitFlags(node) & 4194304) !== 0;
+        }
+        function visitEndOfDeclarationMarker(node) {
+            var id = ts.getOriginalNodeId(node);
+            var statements = deferredExports[id];
+            if (statements) {
+                delete deferredExports[id];
+                return ts.append(statements, node);
+            }
+            else {
+                var original = ts.getOriginalNode(node);
+                if (ts.isModuleOrEnumDeclaration(original)) {
+                    return ts.append(appendExportsOfDeclaration(statements, original), node);
+                }
+            }
+            return node;
+        }
+        function appendExportsOfImportDeclaration(statements, decl) {
+            if (moduleInfo.exportEquals) {
+                return statements;
+            }
+            var importClause = decl.importClause;
+            if (!importClause) {
+                return statements;
+            }
+            if (importClause.name) {
+                statements = appendExportsOfDeclaration(statements, importClause);
+            }
+            var namedBindings = importClause.namedBindings;
+            if (namedBindings) {
+                switch (namedBindings.kind) {
+                    case 256:
+                        statements = appendExportsOfDeclaration(statements, namedBindings);
+                        break;
+                    case 257:
+                        for (var _i = 0, _a = namedBindings.elements; _i < _a.length; _i++) {
+                            var importBinding = _a[_i];
+                            statements = appendExportsOfDeclaration(statements, importBinding);
+                        }
+                        break;
+                }
+            }
+            return statements;
+        }
+        function appendExportsOfImportEqualsDeclaration(statements, decl) {
+            if (moduleInfo.exportEquals) {
+                return statements;
+            }
+            return appendExportsOfDeclaration(statements, decl);
+        }
+        function appendExportsOfVariableStatement(statements, node, exportSelf) {
+            if (moduleInfo.exportEquals) {
+                return statements;
+            }
+            for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
+                var decl = _a[_i];
+                if (decl.initializer || exportSelf) {
+                    statements = appendExportsOfBindingElement(statements, decl, exportSelf);
+                }
+            }
+            return statements;
+        }
+        function appendExportsOfBindingElement(statements, decl, exportSelf) {
+            if (moduleInfo.exportEquals) {
+                return statements;
+            }
+            if (ts.isBindingPattern(decl.name)) {
+                for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
+                    var element = _a[_i];
+                    if (!ts.isOmittedExpression(element)) {
+                        statements = appendExportsOfBindingElement(statements, element, exportSelf);
+                    }
+                }
+            }
+            else if (!ts.isGeneratedIdentifier(decl.name)) {
+                var excludeName = void 0;
+                if (exportSelf) {
+                    statements = appendExportStatement(statements, decl.name, ts.getLocalName(decl));
+                    excludeName = ts.idText(decl.name);
+                }
+                statements = appendExportsOfDeclaration(statements, decl, excludeName);
+            }
+            return statements;
+        }
+        function appendExportsOfHoistedDeclaration(statements, decl) {
+            if (moduleInfo.exportEquals) {
+                return statements;
+            }
+            var excludeName;
+            if (ts.hasModifier(decl, 1)) {
+                var exportName = ts.hasModifier(decl, 512) ? ts.createLiteral("default") : decl.name;
+                statements = appendExportStatement(statements, exportName, ts.getLocalName(decl));
+                excludeName = ts.getTextOfIdentifierOrLiteral(exportName);
+            }
+            if (decl.name) {
+                statements = appendExportsOfDeclaration(statements, decl, excludeName);
+            }
+            return statements;
+        }
+        function appendExportsOfDeclaration(statements, decl, excludeName) {
+            if (moduleInfo.exportEquals) {
+                return statements;
+            }
+            var name = ts.getDeclarationName(decl);
+            var exportSpecifiers = moduleInfo.exportSpecifiers.get(ts.idText(name));
+            if (exportSpecifiers) {
+                for (var _i = 0, exportSpecifiers_2 = exportSpecifiers; _i < exportSpecifiers_2.length; _i++) {
+                    var exportSpecifier = exportSpecifiers_2[_i];
+                    if (exportSpecifier.name.escapedText !== excludeName) {
+                        statements = appendExportStatement(statements, exportSpecifier.name, name);
+                    }
+                }
+            }
+            return statements;
+        }
+        function appendExportStatement(statements, exportName, expression, allowComments) {
+            statements = ts.append(statements, createExportStatement(exportName, expression, allowComments));
+            return statements;
+        }
+        function createExportStatement(name, value, allowComments) {
+            var statement = ts.createExpressionStatement(createExportExpression(name, value));
+            ts.startOnNewLine(statement);
+            if (!allowComments) {
+                ts.setEmitFlags(statement, 1536);
+            }
+            return statement;
+        }
+        function createExportExpression(name, value) {
+            var exportName = ts.isIdentifier(name) ? ts.createLiteral(name) : name;
+            ts.setEmitFlags(value, ts.getEmitFlags(value) | 1536);
+            return ts.setCommentRange(ts.createCall(exportFunction, undefined, [exportName, value]), value);
+        }
+        function nestedElementVisitor(node) {
+            switch (node.kind) {
+                case 225:
+                    return visitVariableStatement(node);
+                case 244:
+                    return visitFunctionDeclaration(node);
+                case 245:
+                    return visitClassDeclaration(node);
+                case 230:
+                    return visitForStatement(node);
+                case 231:
+                    return visitForInStatement(node);
+                case 232:
+                    return visitForOfStatement(node);
+                case 228:
+                    return visitDoStatement(node);
+                case 229:
+                    return visitWhileStatement(node);
+                case 238:
+                    return visitLabeledStatement(node);
+                case 236:
+                    return visitWithStatement(node);
+                case 237:
+                    return visitSwitchStatement(node);
+                case 251:
+                    return visitCaseBlock(node);
+                case 277:
+                    return visitCaseClause(node);
+                case 278:
+                    return visitDefaultClause(node);
+                case 240:
+                    return visitTryStatement(node);
+                case 280:
+                    return visitCatchClause(node);
+                case 223:
+                    return visitBlock(node);
+                case 328:
+                    return visitMergeDeclarationMarker(node);
+                case 329:
+                    return visitEndOfDeclarationMarker(node);
+                default:
+                    return destructuringAndImportCallVisitor(node);
+            }
+        }
+        function visitForStatement(node) {
+            var savedEnclosingBlockScopedContainer = enclosingBlockScopedContainer;
+            enclosingBlockScopedContainer = node;
+            node = ts.updateFor(node, node.initializer && visitForInitializer(node.initializer), ts.visitNode(node.condition, destructuringAndImportCallVisitor, ts.isExpression), ts.visitNode(node.incrementor, destructuringAndImportCallVisitor, ts.isExpression), ts.visitNode(node.statement, nestedElementVisitor, ts.isStatement));
+            enclosingBlockScopedContainer = savedEnclosingBlockScopedContainer;
+            return node;
+        }
+        function visitForInStatement(node) {
+            var savedEnclosingBlockScopedContainer = enclosingBlockScopedContainer;
+            enclosingBlockScopedContainer = node;
+            node = ts.updateForIn(node, visitForInitializer(node.initializer), ts.visitNode(node.expression, destructuringAndImportCallVisitor, ts.isExpression), ts.visitNode(node.statement, nestedElementVisitor, ts.isStatement, ts.liftToBlock));
+            enclosingBlockScopedContainer = savedEnclosingBlockScopedContainer;
+            return node;
+        }
+        function visitForOfStatement(node) {
+            var savedEnclosingBlockScopedContainer = enclosingBlockScopedContainer;
+            enclosingBlockScopedContainer = node;
+            node = ts.updateForOf(node, node.awaitModifier, visitForInitializer(node.initializer), ts.visitNode(node.expression, destructuringAndImportCallVisitor, ts.isExpression), ts.visitNode(node.statement, nestedElementVisitor, ts.isStatement, ts.liftToBlock));
+            enclosingBlockScopedContainer = savedEnclosingBlockScopedContainer;
+            return node;
+        }
+        function shouldHoistForInitializer(node) {
+            return ts.isVariableDeclarationList(node)
+                && shouldHoistVariableDeclarationList(node);
+        }
+        function visitForInitializer(node) {
+            if (shouldHoistForInitializer(node)) {
+                var expressions = void 0;
+                for (var _i = 0, _a = node.declarations; _i < _a.length; _i++) {
+                    var variable = _a[_i];
+                    expressions = ts.append(expressions, transformInitializedVariable(variable, false));
+                    if (!variable.initializer) {
+                        hoistBindingElement(variable);
+                    }
+                }
+                return expressions ? ts.inlineExpressions(expressions) : ts.createOmittedExpression();
+            }
+            else {
+                return ts.visitEachChild(node, nestedElementVisitor, context);
+            }
+        }
+        function visitDoStatement(node) {
+            return ts.updateDo(node, ts.visitNode(node.statement, nestedElementVisitor, ts.isStatement, ts.liftToBlock), ts.visitNode(node.expression, destructuringAndImportCallVisitor, ts.isExpression));
+        }
+        function visitWhileStatement(node) {
+            return ts.updateWhile(node, ts.visitNode(node.expression, destructuringAndImportCallVisitor, ts.isExpression), ts.visitNode(node.statement, nestedElementVisitor, ts.isStatement, ts.liftToBlock));
+        }
+        function visitLabeledStatement(node) {
+            return ts.updateLabel(node, node.label, ts.visitNode(node.statement, nestedElementVisitor, ts.isStatement, ts.liftToBlock));
+        }
+        function visitWithStatement(node) {
+            return ts.updateWith(node, ts.visitNode(node.expression, destructuringAndImportCallVisitor, ts.isExpression), ts.visitNode(node.statement, nestedElementVisitor, ts.isStatement, ts.liftToBlock));
+        }
+        function visitSwitchStatement(node) {
+            return ts.updateSwitch(node, ts.visitNode(node.expression, destructuringAndImportCallVisitor, ts.isExpression), ts.visitNode(node.caseBlock, nestedElementVisitor, ts.isCaseBlock));
+        }
+        function visitCaseBlock(node) {
+            var savedEnclosingBlockScopedContainer = enclosingBlockScopedContainer;
+            enclosingBlockScopedContainer = node;
+            node = ts.updateCaseBlock(node, ts.visitNodes(node.clauses, nestedElementVisitor, ts.isCaseOrDefaultClause));
+            enclosingBlockScopedContainer = savedEnclosingBlockScopedContainer;
+            return node;
+        }
+        function visitCaseClause(node) {
+            return ts.updateCaseClause(node, ts.visitNode(node.expression, destructuringAndImportCallVisitor, ts.isExpression), ts.visitNodes(node.statements, nestedElementVisitor, ts.isStatement));
+        }
+        function visitDefaultClause(node) {
+            return ts.visitEachChild(node, nestedElementVisitor, context);
+        }
+        function visitTryStatement(node) {
+            return ts.visitEachChild(node, nestedElementVisitor, context);
+        }
+        function visitCatchClause(node) {
+            var savedEnclosingBlockScopedContainer = enclosingBlockScopedContainer;
+            enclosingBlockScopedContainer = node;
+            node = ts.updateCatchClause(node, node.variableDeclaration, ts.visitNode(node.block, nestedElementVisitor, ts.isBlock));
+            enclosingBlockScopedContainer = savedEnclosingBlockScopedContainer;
+            return node;
+        }
+        function visitBlock(node) {
+            var savedEnclosingBlockScopedContainer = enclosingBlockScopedContainer;
+            enclosingBlockScopedContainer = node;
+            node = ts.visitEachChild(node, nestedElementVisitor, context);
+            enclosingBlockScopedContainer = savedEnclosingBlockScopedContainer;
+            return node;
+        }
+        function destructuringAndImportCallVisitor(node) {
+            if (ts.isDestructuringAssignment(node)) {
+                return visitDestructuringAssignment(node);
+            }
+            else if (ts.isImportCall(node)) {
+                return visitImportCallExpression(node);
+            }
+            else if ((node.transformFlags & 1024) || (node.transformFlags & 2097152)) {
+                return ts.visitEachChild(node, destructuringAndImportCallVisitor, context);
+            }
+            else {
+                return node;
+            }
+        }
+        function visitImportCallExpression(node) {
+            return ts.createCall(ts.createPropertyAccess(contextObject, ts.createIdentifier("import")), undefined, ts.some(node.arguments) ? [ts.visitNode(node.arguments[0], destructuringAndImportCallVisitor)] : []);
+        }
+        function visitDestructuringAssignment(node) {
+            if (hasExportedReferenceInDestructuringTarget(node.left)) {
+                return ts.flattenDestructuringAssignment(node, destructuringAndImportCallVisitor, context, 0, true);
+            }
+            return ts.visitEachChild(node, destructuringAndImportCallVisitor, context);
+        }
+        function hasExportedReferenceInDestructuringTarget(node) {
+            if (ts.isAssignmentExpression(node, true)) {
+                return hasExportedReferenceInDestructuringTarget(node.left);
+            }
+            else if (ts.isSpreadElement(node)) {
+                return hasExportedReferenceInDestructuringTarget(node.expression);
+            }
+            else if (ts.isObjectLiteralExpression(node)) {
+                return ts.some(node.properties, hasExportedReferenceInDestructuringTarget);
+            }
+            else if (ts.isArrayLiteralExpression(node)) {
+                return ts.some(node.elements, hasExportedReferenceInDestructuringTarget);
+            }
+            else if (ts.isShorthandPropertyAssignment(node)) {
+                return hasExportedReferenceInDestructuringTarget(node.name);
+            }
+            else if (ts.isPropertyAssignment(node)) {
+                return hasExportedReferenceInDestructuringTarget(node.initializer);
+            }
+            else if (ts.isIdentifier(node)) {
+                var container = resolver.getReferencedExportContainer(node);
+                return container !== undefined && container.kind === 290;
+            }
+            else {
+                return false;
+            }
+        }
+        function modifierVisitor(node) {
+            switch (node.kind) {
+                case 89:
+                case 84:
+                    return undefined;
+            }
+            return node;
+        }
+        function onEmitNode(hint, node, emitCallback) {
+            if (node.kind === 290) {
+                var id = ts.getOriginalNodeId(node);
+                currentSourceFile = node;
+                moduleInfo = moduleInfoMap[id];
+                exportFunction = exportFunctionsMap[id];
+                noSubstitution = noSubstitutionMap[id];
+                contextObject = contextObjectMap[id];
+                if (noSubstitution) {
+                    delete noSubstitutionMap[id];
+                }
+                previousOnEmitNode(hint, node, emitCallback);
+                currentSourceFile = undefined;
+                moduleInfo = undefined;
+                exportFunction = undefined;
+                contextObject = undefined;
+                noSubstitution = undefined;
+            }
+            else {
+                previousOnEmitNode(hint, node, emitCallback);
+            }
+        }
+        function onSubstituteNode(hint, node) {
+            node = previousOnSubstituteNode(hint, node);
+            if (isSubstitutionPrevented(node)) {
+                return node;
+            }
+            if (hint === 1) {
+                return substituteExpression(node);
+            }
+            else if (hint === 4) {
+                return substituteUnspecified(node);
+            }
+            return node;
+        }
+        function substituteUnspecified(node) {
+            switch (node.kind) {
+                case 282:
+                    return substituteShorthandPropertyAssignment(node);
+            }
+            return node;
+        }
+        function substituteShorthandPropertyAssignment(node) {
+            var name = node.name;
+            if (!ts.isGeneratedIdentifier(name) && !ts.isLocalName(name)) {
+                var importDeclaration = resolver.getReferencedImportDeclaration(name);
+                if (importDeclaration) {
+                    if (ts.isImportClause(importDeclaration)) {
+                        return ts.setTextRange(ts.createPropertyAssignment(ts.getSynthesizedClone(name), ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent), ts.createIdentifier("default"))), node);
+                    }
+                    else if (ts.isImportSpecifier(importDeclaration)) {
+                        return ts.setTextRange(ts.createPropertyAssignment(ts.getSynthesizedClone(name), ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent.parent.parent), ts.getSynthesizedClone(importDeclaration.propertyName || importDeclaration.name))), node);
+                    }
+                }
+            }
+            return node;
+        }
+        function substituteExpression(node) {
+            switch (node.kind) {
+                case 75:
+                    return substituteExpressionIdentifier(node);
+                case 209:
+                    return substituteBinaryExpression(node);
+                case 207:
+                case 208:
+                    return substituteUnaryExpression(node);
+                case 219:
+                    return substituteMetaProperty(node);
+            }
+            return node;
+        }
+        function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+                return node;
+            }
+            if (!ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
+                var importDeclaration = resolver.getReferencedImportDeclaration(node);
+                if (importDeclaration) {
+                    if (ts.isImportClause(importDeclaration)) {
+                        return ts.setTextRange(ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent), ts.createIdentifier("default")), node);
+                    }
+                    else if (ts.isImportSpecifier(importDeclaration)) {
+                        return ts.setTextRange(ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent.parent.parent), ts.getSynthesizedClone(importDeclaration.propertyName || importDeclaration.name)), node);
+                    }
+                }
+            }
+            return node;
+        }
+        function substituteBinaryExpression(node) {
+            if (ts.isAssignmentOperator(node.operatorToken.kind)
+                && ts.isIdentifier(node.left)
+                && !ts.isGeneratedIdentifier(node.left)
+                && !ts.isLocalName(node.left)
+                && !ts.isDeclarationNameOfEnumOrNamespace(node.left)) {
+                var exportedNames = getExports(node.left);
+                if (exportedNames) {
+                    var expression = node;
+                    for (var _i = 0, exportedNames_4 = exportedNames; _i < exportedNames_4.length; _i++) {
+                        var exportName = exportedNames_4[_i];
+                        expression = createExportExpression(exportName, preventSubstitution(expression));
+                    }
+                    return expression;
+                }
+            }
+            return node;
+        }
+        function substituteUnaryExpression(node) {
+            if ((node.operator === 45 || node.operator === 46)
+                && ts.isIdentifier(node.operand)
+                && !ts.isGeneratedIdentifier(node.operand)
+                && !ts.isLocalName(node.operand)
+                && !ts.isDeclarationNameOfEnumOrNamespace(node.operand)) {
+                var exportedNames = getExports(node.operand);
+                if (exportedNames) {
+                    var expression = node.kind === 208
+                        ? ts.setTextRange(ts.createPrefix(node.operator, node.operand), node)
+                        : node;
+                    for (var _i = 0, exportedNames_5 = exportedNames; _i < exportedNames_5.length; _i++) {
+                        var exportName = exportedNames_5[_i];
+                        expression = createExportExpression(exportName, preventSubstitution(expression));
+                    }
+                    if (node.kind === 208) {
+                        expression = node.operator === 45
+                            ? ts.createSubtract(preventSubstitution(expression), ts.createLiteral(1))
+                            : ts.createAdd(preventSubstitution(expression), ts.createLiteral(1));
+                    }
+                    return expression;
+                }
+            }
+            return node;
+        }
+        function substituteMetaProperty(node) {
+            if (ts.isImportMeta(node)) {
+                return ts.createPropertyAccess(contextObject, ts.createIdentifier("meta"));
+            }
+            return node;
+        }
+        function getExports(name) {
+            var exportedNames;
+            if (!ts.isGeneratedIdentifier(name)) {
+                var valueDeclaration = resolver.getReferencedImportDeclaration(name)
+                    || resolver.getReferencedValueDeclaration(name);
+                if (valueDeclaration) {
+                    var exportContainer = resolver.getReferencedExportContainer(name, false);
+                    if (exportContainer && exportContainer.kind === 290) {
+                        exportedNames = ts.append(exportedNames, ts.getDeclarationName(valueDeclaration));
+                    }
+                    exportedNames = ts.addRange(exportedNames, moduleInfo && moduleInfo.exportedBindings[ts.getOriginalNodeId(valueDeclaration)]);
+                }
+            }
+            return exportedNames;
+        }
+        function preventSubstitution(node) {
+            if (noSubstitution === undefined)
+                noSubstitution = [];
+            noSubstitution[ts.getNodeId(node)] = true;
+            return node;
+        }
+        function isSubstitutionPrevented(node) {
+            return noSubstitution && node.id && noSubstitution[node.id];
+        }
+    }
+    ts.transformSystemModule = transformSystemModule;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformECMAScriptModule(context) {
+        var compilerOptions = context.getCompilerOptions();
+        var previousOnEmitNode = context.onEmitNode;
+        var previousOnSubstituteNode = context.onSubstituteNode;
+        context.onEmitNode = onEmitNode;
+        context.onSubstituteNode = onSubstituteNode;
+        context.enableEmitNotification(290);
+        context.enableSubstitution(75);
+        var helperNameSubstitutions;
+        return ts.chainBundle(transformSourceFile);
+        function transformSourceFile(node) {
+            if (node.isDeclarationFile) {
+                return node;
+            }
+            if (ts.isExternalModule(node) || compilerOptions.isolatedModules) {
+                var externalHelpersImportDeclaration = ts.createExternalHelpersImportDeclarationIfNeeded(node, compilerOptions);
+                if (externalHelpersImportDeclaration) {
+                    var statements = [];
+                    var statementOffset = ts.addPrologue(statements, node.statements);
+                    ts.append(statements, externalHelpersImportDeclaration);
+                    ts.addRange(statements, ts.visitNodes(node.statements, visitor, ts.isStatement, statementOffset));
+                    return ts.updateSourceFileNode(node, ts.setTextRange(ts.createNodeArray(statements), node.statements));
+                }
+                else {
+                    return ts.visitEachChild(node, visitor, context);
+                }
+            }
+            return node;
+        }
+        function visitor(node) {
+            switch (node.kind) {
+                case 253:
+                    return undefined;
+                case 259:
+                    return visitExportAssignment(node);
+                case 260:
+                    var exportDecl = node;
+                    return visitExportDeclaration(exportDecl);
+            }
+            return node;
+        }
+        function visitExportAssignment(node) {
+            return node.isExportEquals ? undefined : node;
+        }
+        function visitExportDeclaration(node) {
+            if (compilerOptions.module !== undefined && compilerOptions.module > ts.ModuleKind.ES2015) {
+                return node;
+            }
+            if (!node.exportClause || !ts.isNamespaceExport(node.exportClause) || !node.moduleSpecifier) {
+                return node;
+            }
+            var oldIdentifier = node.exportClause.name;
+            var synthName = ts.getGeneratedNameForNode(oldIdentifier);
+            var importDecl = ts.createImportDeclaration(undefined, undefined, ts.createImportClause(undefined, ts.createNamespaceImport(synthName)), node.moduleSpecifier);
+            ts.setOriginalNode(importDecl, node.exportClause);
+            var exportDecl = ts.createExportDeclaration(undefined, undefined, ts.createNamedExports([ts.createExportSpecifier(synthName, oldIdentifier)]));
+            ts.setOriginalNode(exportDecl, node);
+            return [importDecl, exportDecl];
+        }
+        function onEmitNode(hint, node, emitCallback) {
+            if (ts.isSourceFile(node)) {
+                if ((ts.isExternalModule(node) || compilerOptions.isolatedModules) && compilerOptions.importHelpers) {
+                    helperNameSubstitutions = ts.createMap();
+                }
+                previousOnEmitNode(hint, node, emitCallback);
+                helperNameSubstitutions = undefined;
+            }
+            else {
+                previousOnEmitNode(hint, node, emitCallback);
+            }
+        }
+        function onSubstituteNode(hint, node) {
+            node = previousOnSubstituteNode(hint, node);
+            if (helperNameSubstitutions && ts.isIdentifier(node) && ts.getEmitFlags(node) & 4096) {
+                return substituteHelperName(node);
+            }
+            return node;
+        }
+        function substituteHelperName(node) {
+            var name = ts.idText(node);
+            var substitution = helperNameSubstitutions.get(name);
+            if (!substitution) {
+                helperNameSubstitutions.set(name, substitution = ts.createFileLevelUniqueName(name));
+            }
+            return substitution;
+        }
+    }
+    ts.transformECMAScriptModule = transformECMAScriptModule;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function canProduceDiagnostics(node) {
+        return ts.isVariableDeclaration(node) ||
+            ts.isPropertyDeclaration(node) ||
+            ts.isPropertySignature(node) ||
+            ts.isBindingElement(node) ||
+            ts.isSetAccessor(node) ||
+            ts.isGetAccessor(node) ||
+            ts.isConstructSignatureDeclaration(node) ||
+            ts.isCallSignatureDeclaration(node) ||
+            ts.isMethodDeclaration(node) ||
+            ts.isMethodSignature(node) ||
+            ts.isFunctionDeclaration(node) ||
+            ts.isParameter(node) ||
+            ts.isTypeParameterDeclaration(node) ||
+            ts.isExpressionWithTypeArguments(node) ||
+            ts.isImportEqualsDeclaration(node) ||
+            ts.isTypeAliasDeclaration(node) ||
+            ts.isConstructorDeclaration(node) ||
+            ts.isIndexSignatureDeclaration(node) ||
+            ts.isPropertyAccessExpression(node);
+    }
+    ts.canProduceDiagnostics = canProduceDiagnostics;
+    function createGetSymbolAccessibilityDiagnosticForNodeName(node) {
+        if (ts.isSetAccessor(node) || ts.isGetAccessor(node)) {
+            return getAccessorNameVisibilityError;
+        }
+        else if (ts.isMethodSignature(node) || ts.isMethodDeclaration(node)) {
+            return getMethodNameVisibilityError;
+        }
+        else {
+            return createGetSymbolAccessibilityDiagnosticForNode(node);
+        }
+        function getAccessorNameVisibilityError(symbolAccessibilityResult) {
+            var diagnosticMessage = getAccessorNameVisibilityDiagnosticMessage(symbolAccessibilityResult);
+            return diagnosticMessage !== undefined ? {
+                diagnosticMessage: diagnosticMessage,
+                errorNode: node,
+                typeName: node.name
+            } : undefined;
+        }
+        function getAccessorNameVisibilityDiagnosticMessage(symbolAccessibilityResult) {
+            if (ts.hasModifier(node, 32)) {
+                return symbolAccessibilityResult.errorModuleName ?
+                    symbolAccessibilityResult.accessibility === 2 ?
+                        ts.Diagnostics.Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+                        ts.Diagnostics.Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2 :
+                    ts.Diagnostics.Public_static_property_0_of_exported_class_has_or_is_using_private_name_1;
+            }
+            else if (node.parent.kind === 245) {
+                return symbolAccessibilityResult.errorModuleName ?
+                    symbolAccessibilityResult.accessibility === 2 ?
+                        ts.Diagnostics.Public_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+                        ts.Diagnostics.Public_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2 :
+                    ts.Diagnostics.Public_property_0_of_exported_class_has_or_is_using_private_name_1;
+            }
+            else {
+                return symbolAccessibilityResult.errorModuleName ?
+                    ts.Diagnostics.Property_0_of_exported_interface_has_or_is_using_name_1_from_private_module_2 :
+                    ts.Diagnostics.Property_0_of_exported_interface_has_or_is_using_private_name_1;
+            }
+        }
+        function getMethodNameVisibilityError(symbolAccessibilityResult) {
+            var diagnosticMessage = getMethodNameVisibilityDiagnosticMessage(symbolAccessibilityResult);
+            return diagnosticMessage !== undefined ? {
+                diagnosticMessage: diagnosticMessage,
+                errorNode: node,
+                typeName: node.name
+            } : undefined;
+        }
+        function getMethodNameVisibilityDiagnosticMessage(symbolAccessibilityResult) {
+            if (ts.hasModifier(node, 32)) {
+                return symbolAccessibilityResult.errorModuleName ?
+                    symbolAccessibilityResult.accessibility === 2 ?
+                        ts.Diagnostics.Public_static_method_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+                        ts.Diagnostics.Public_static_method_0_of_exported_class_has_or_is_using_name_1_from_private_module_2 :
+                    ts.Diagnostics.Public_static_method_0_of_exported_class_has_or_is_using_private_name_1;
+            }
+            else if (node.parent.kind === 245) {
+                return symbolAccessibilityResult.errorModuleName ?
+                    symbolAccessibilityResult.accessibility === 2 ?
+                        ts.Diagnostics.Public_method_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+                        ts.Diagnostics.Public_method_0_of_exported_class_has_or_is_using_name_1_from_private_module_2 :
+                    ts.Diagnostics.Public_method_0_of_exported_class_has_or_is_using_private_name_1;
+            }
+            else {
+                return symbolAccessibilityResult.errorModuleName ?
+                    ts.Diagnostics.Method_0_of_exported_interface_has_or_is_using_name_1_from_private_module_2 :
+                    ts.Diagnostics.Method_0_of_exported_interface_has_or_is_using_private_name_1;
+            }
+        }
+    }
+    ts.createGetSymbolAccessibilityDiagnosticForNodeName = createGetSymbolAccessibilityDiagnosticForNodeName;
+    function createGetSymbolAccessibilityDiagnosticForNode(node) {
+        if (ts.isVariableDeclaration(node) || ts.isPropertyDeclaration(node) || ts.isPropertySignature(node) || ts.isPropertyAccessExpression(node) || ts.isBindingElement(node) || ts.isConstructorDeclaration(node)) {
+            return getVariableDeclarationTypeVisibilityError;
+        }
+        else if (ts.isSetAccessor(node) || ts.isGetAccessor(node)) {
+            return getAccessorDeclarationTypeVisibilityError;
+        }
+        else if (ts.isConstructSignatureDeclaration(node) || ts.isCallSignatureDeclaration(node) || ts.isMethodDeclaration(node) || ts.isMethodSignature(node) || ts.isFunctionDeclaration(node) || ts.isIndexSignatureDeclaration(node)) {
+            return getReturnTypeVisibilityError;
+        }
+        else if (ts.isParameter(node)) {
+            if (ts.isParameterPropertyDeclaration(node, node.parent) && ts.hasModifier(node.parent, 8)) {
+                return getVariableDeclarationTypeVisibilityError;
+            }
+            return getParameterDeclarationTypeVisibilityError;
+        }
+        else if (ts.isTypeParameterDeclaration(node)) {
+            return getTypeParameterConstraintVisibilityError;
+        }
+        else if (ts.isExpressionWithTypeArguments(node)) {
+            return getHeritageClauseVisibilityError;
+        }
+        else if (ts.isImportEqualsDeclaration(node)) {
+            return getImportEntityNameVisibilityError;
+        }
+        else if (ts.isTypeAliasDeclaration(node)) {
+            return getTypeAliasDeclarationVisibilityError;
+        }
+        else {
+            return ts.Debug.assertNever(node, "Attempted to set a declaration diagnostic context for unhandled node kind: " + ts.SyntaxKind[node.kind]);
+        }
+        function getVariableDeclarationTypeVisibilityDiagnosticMessage(symbolAccessibilityResult) {
+            if (node.kind === 242 || node.kind === 191) {
+                return symbolAccessibilityResult.errorModuleName ?
+                    symbolAccessibilityResult.accessibility === 2 ?
+                        ts.Diagnostics.Exported_variable_0_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+                        ts.Diagnostics.Exported_variable_0_has_or_is_using_name_1_from_private_module_2 :
+                    ts.Diagnostics.Exported_variable_0_has_or_is_using_private_name_1;
+            }
+            else if (node.kind === 159 || node.kind === 194 || node.kind === 158 ||
+                (node.kind === 156 && ts.hasModifier(node.parent, 8))) {
+                if (ts.hasModifier(node, 32)) {
+                    return symbolAccessibilityResult.errorModuleName ?
+                        symbolAccessibilityResult.accessibility === 2 ?
+                            ts.Diagnostics.Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+                            ts.Diagnostics.Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2 :
+                        ts.Diagnostics.Public_static_property_0_of_exported_class_has_or_is_using_private_name_1;
+                }
+                else if (node.parent.kind === 245 || node.kind === 156) {
+                    return symbolAccessibilityResult.errorModuleName ?
+                        symbolAccessibilityResult.accessibility === 2 ?
+                            ts.Diagnostics.Public_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+                            ts.Diagnostics.Public_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2 :
+                        ts.Diagnostics.Public_property_0_of_exported_class_has_or_is_using_private_name_1;
+                }
+                else {
+                    return symbolAccessibilityResult.errorModuleName ?
+                        ts.Diagnostics.Property_0_of_exported_interface_has_or_is_using_name_1_from_private_module_2 :
+                        ts.Diagnostics.Property_0_of_exported_interface_has_or_is_using_private_name_1;
+                }
+            }
+        }
+        function getVariableDeclarationTypeVisibilityError(symbolAccessibilityResult) {
+            var diagnosticMessage = getVariableDeclarationTypeVisibilityDiagnosticMessage(symbolAccessibilityResult);
+            return diagnosticMessage !== undefined ? {
+                diagnosticMessage: diagnosticMessage,
+                errorNode: node,
+                typeName: node.name
+            } : undefined;
+        }
+        function getAccessorDeclarationTypeVisibilityError(symbolAccessibilityResult) {
+            var diagnosticMessage;
+            if (node.kind === 164) {
+                if (ts.hasModifier(node, 32)) {
+                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
+                        ts.Diagnostics.Parameter_type_of_public_static_setter_0_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
+                        ts.Diagnostics.Parameter_type_of_public_static_setter_0_from_exported_class_has_or_is_using_private_name_1;
+                }
+                else {
+                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
+                        ts.Diagnostics.Parameter_type_of_public_setter_0_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
+                        ts.Diagnostics.Parameter_type_of_public_setter_0_from_exported_class_has_or_is_using_private_name_1;
+                }
+            }
+            else {
+                if (ts.hasModifier(node, 32)) {
+                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
+                        symbolAccessibilityResult.accessibility === 2 ?
+                            ts.Diagnostics.Return_type_of_public_static_getter_0_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+                            ts.Diagnostics.Return_type_of_public_static_getter_0_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
+                        ts.Diagnostics.Return_type_of_public_static_getter_0_from_exported_class_has_or_is_using_private_name_1;
+                }
+                else {
+                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
+                        symbolAccessibilityResult.accessibility === 2 ?
+                            ts.Diagnostics.Return_type_of_public_getter_0_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+                            ts.Diagnostics.Return_type_of_public_getter_0_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
+                        ts.Diagnostics.Return_type_of_public_getter_0_from_exported_class_has_or_is_using_private_name_1;
+                }
+            }
+            return {
+                diagnosticMessage: diagnosticMessage,
+                errorNode: node.name,
+                typeName: node.name
+            };
+        }
+        function getReturnTypeVisibilityError(symbolAccessibilityResult) {
+            var diagnosticMessage;
+            switch (node.kind) {
+                case 166:
+                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
+                        ts.Diagnostics.Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1 :
+                        ts.Diagnostics.Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_0;
+                    break;
+                case 165:
+                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
+                        ts.Diagnostics.Return_type_of_call_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1 :
+                        ts.Diagnostics.Return_type_of_call_signature_from_exported_interface_has_or_is_using_private_name_0;
+                    break;
+                case 167:
+                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
+                        ts.Diagnostics.Return_type_of_index_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1 :
+                        ts.Diagnostics.Return_type_of_index_signature_from_exported_interface_has_or_is_using_private_name_0;
+                    break;
+                case 161:
+                case 160:
+                    if (ts.hasModifier(node, 32)) {
+                        diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
+                            symbolAccessibilityResult.accessibility === 2 ?
+                                ts.Diagnostics.Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named :
+                                ts.Diagnostics.Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_private_module_1 :
+                            ts.Diagnostics.Return_type_of_public_static_method_from_exported_class_has_or_is_using_private_name_0;
+                    }
+                    else if (node.parent.kind === 245) {
+                        diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
+                            symbolAccessibilityResult.accessibility === 2 ?
+                                ts.Diagnostics.Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named :
+                                ts.Diagnostics.Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_private_module_1 :
+                            ts.Diagnostics.Return_type_of_public_method_from_exported_class_has_or_is_using_private_name_0;
+                    }
+                    else {
+                        diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
+                            ts.Diagnostics.Return_type_of_method_from_exported_interface_has_or_is_using_name_0_from_private_module_1 :
+                            ts.Diagnostics.Return_type_of_method_from_exported_interface_has_or_is_using_private_name_0;
+                    }
+                    break;
+                case 244:
+                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
+                        symbolAccessibilityResult.accessibility === 2 ?
+                            ts.Diagnostics.Return_type_of_exported_function_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named :
+                            ts.Diagnostics.Return_type_of_exported_function_has_or_is_using_name_0_from_private_module_1 :
+                        ts.Diagnostics.Return_type_of_exported_function_has_or_is_using_private_name_0;
+                    break;
+                default:
+                    return ts.Debug.fail("This is unknown kind for signature: " + node.kind);
+            }
+            return {
+                diagnosticMessage: diagnosticMessage,
+                errorNode: node.name || node
+            };
+        }
+        function getParameterDeclarationTypeVisibilityError(symbolAccessibilityResult) {
+            var diagnosticMessage = getParameterDeclarationTypeVisibilityDiagnosticMessage(symbolAccessibilityResult);
+            return diagnosticMessage !== undefined ? {
+                diagnosticMessage: diagnosticMessage,
+                errorNode: node,
+                typeName: node.name
+            } : undefined;
+        }
+        function getParameterDeclarationTypeVisibilityDiagnosticMessage(symbolAccessibilityResult) {
+            switch (node.parent.kind) {
+                case 162:
+                    return symbolAccessibilityResult.errorModuleName ?
+                        symbolAccessibilityResult.accessibility === 2 ?
+                            ts.Diagnostics.Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+                            ts.Diagnostics.Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
+                        ts.Diagnostics.Parameter_0_of_constructor_from_exported_class_has_or_is_using_private_name_1;
+                case 166:
+                case 171:
+                    return symbolAccessibilityResult.errorModuleName ?
+                        ts.Diagnostics.Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2 :
+                        ts.Diagnostics.Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1;
+                case 165:
+                    return symbolAccessibilityResult.errorModuleName ?
+                        ts.Diagnostics.Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2 :
+                        ts.Diagnostics.Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1;
+                case 167:
+                    return symbolAccessibilityResult.errorModuleName ?
+                        ts.Diagnostics.Parameter_0_of_index_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2 :
+                        ts.Diagnostics.Parameter_0_of_index_signature_from_exported_interface_has_or_is_using_private_name_1;
+                case 161:
+                case 160:
+                    if (ts.hasModifier(node.parent, 32)) {
+                        return symbolAccessibilityResult.errorModuleName ?
+                            symbolAccessibilityResult.accessibility === 2 ?
+                                ts.Diagnostics.Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+                                ts.Diagnostics.Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
+                            ts.Diagnostics.Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1;
+                    }
+                    else if (node.parent.parent.kind === 245) {
+                        return symbolAccessibilityResult.errorModuleName ?
+                            symbolAccessibilityResult.accessibility === 2 ?
+                                ts.Diagnostics.Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+                                ts.Diagnostics.Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
+                            ts.Diagnostics.Parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1;
+                    }
+                    else {
+                        return symbolAccessibilityResult.errorModuleName ?
+                            ts.Diagnostics.Parameter_0_of_method_from_exported_interface_has_or_is_using_name_1_from_private_module_2 :
+                            ts.Diagnostics.Parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1;
+                    }
+                case 244:
+                case 170:
+                    return symbolAccessibilityResult.errorModuleName ?
+                        symbolAccessibilityResult.accessibility === 2 ?
+                            ts.Diagnostics.Parameter_0_of_exported_function_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+                            ts.Diagnostics.Parameter_0_of_exported_function_has_or_is_using_name_1_from_private_module_2 :
+                        ts.Diagnostics.Parameter_0_of_exported_function_has_or_is_using_private_name_1;
+                case 164:
+                case 163:
+                    return symbolAccessibilityResult.errorModuleName ?
+                        symbolAccessibilityResult.accessibility === 2 ?
+                            ts.Diagnostics.Parameter_0_of_accessor_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+                            ts.Diagnostics.Parameter_0_of_accessor_has_or_is_using_name_1_from_private_module_2 :
+                        ts.Diagnostics.Parameter_0_of_accessor_has_or_is_using_private_name_1;
+                default:
+                    return ts.Debug.fail("Unknown parent for parameter: " + ts.SyntaxKind[node.parent.kind]);
+            }
+        }
+        function getTypeParameterConstraintVisibilityError() {
+            var diagnosticMessage;
+            switch (node.parent.kind) {
+                case 245:
+                    diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_class_has_or_is_using_private_name_1;
+                    break;
+                case 246:
+                    diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1;
+                    break;
+                case 186:
+                    diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_mapped_object_type_is_using_private_name_1;
+                    break;
+                case 171:
+                case 166:
+                    diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1;
+                    break;
+                case 165:
+                    diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1;
+                    break;
+                case 161:
+                case 160:
+                    if (ts.hasModifier(node.parent, 32)) {
+                        diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1;
+                    }
+                    else if (node.parent.parent.kind === 245) {
+                        diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1;
+                    }
+                    else {
+                        diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1;
+                    }
+                    break;
+                case 170:
+                case 244:
+                    diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_function_has_or_is_using_private_name_1;
+                    break;
+                case 247:
+                    diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1;
+                    break;
+                default:
+                    return ts.Debug.fail("This is unknown parent for type parameter: " + node.parent.kind);
+            }
+            return {
+                diagnosticMessage: diagnosticMessage,
+                errorNode: node,
+                typeName: node.name
+            };
+        }
+        function getHeritageClauseVisibilityError() {
+            var diagnosticMessage;
+            if (node.parent.parent.kind === 245) {
+                diagnosticMessage = ts.isHeritageClause(node.parent) && node.parent.token === 113 ?
+                    ts.Diagnostics.Implements_clause_of_exported_class_0_has_or_is_using_private_name_1 :
+                    ts.Diagnostics.extends_clause_of_exported_class_0_has_or_is_using_private_name_1;
+            }
+            else {
+                diagnosticMessage = ts.Diagnostics.extends_clause_of_exported_interface_0_has_or_is_using_private_name_1;
+            }
+            return {
+                diagnosticMessage: diagnosticMessage,
+                errorNode: node,
+                typeName: ts.getNameOfDeclaration(node.parent.parent)
+            };
+        }
+        function getImportEntityNameVisibilityError() {
+            return {
+                diagnosticMessage: ts.Diagnostics.Import_declaration_0_is_using_private_name_1,
+                errorNode: node,
+                typeName: node.name
+            };
+        }
+        function getTypeAliasDeclarationVisibilityError() {
+            return {
+                diagnosticMessage: ts.Diagnostics.Exported_type_alias_0_has_or_is_using_private_name_1,
+                errorNode: node.type,
+                typeName: node.name
+            };
+        }
+    }
+    ts.createGetSymbolAccessibilityDiagnosticForNode = createGetSymbolAccessibilityDiagnosticForNode;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function getDeclarationDiagnostics(host, resolver, file) {
+        if (file && ts.isJsonSourceFile(file)) {
+            return [];
+        }
+        var compilerOptions = host.getCompilerOptions();
+        var result = ts.transformNodes(resolver, host, compilerOptions, file ? [file] : ts.filter(host.getSourceFiles(), ts.isSourceFileNotJson), [transformDeclarations], false);
+        return result.diagnostics;
+    }
+    ts.getDeclarationDiagnostics = getDeclarationDiagnostics;
+    function hasInternalAnnotation(range, currentSourceFile) {
+        var comment = currentSourceFile.text.substring(range.pos, range.end);
+        return ts.stringContains(comment, "@internal");
+    }
+    function isInternalDeclaration(node, currentSourceFile) {
+        var parseTreeNode = ts.getParseTreeNode(node);
+        if (parseTreeNode && parseTreeNode.kind === 156) {
+            var paramIdx = parseTreeNode.parent.parameters.indexOf(parseTreeNode);
+            var previousSibling = paramIdx > 0 ? parseTreeNode.parent.parameters[paramIdx - 1] : undefined;
+            var text = currentSourceFile.text;
+            var commentRanges = previousSibling
+                ? ts.concatenate(ts.getTrailingCommentRanges(text, ts.skipTrivia(text, previousSibling.end + 1, false, true)), ts.getLeadingCommentRanges(text, node.pos))
+                : ts.getTrailingCommentRanges(text, ts.skipTrivia(text, node.pos, false, true));
+            return commentRanges && commentRanges.length && hasInternalAnnotation(ts.last(commentRanges), currentSourceFile);
+        }
+        var leadingCommentRanges = parseTreeNode && ts.getLeadingCommentRangesOfNode(parseTreeNode, currentSourceFile);
+        return !!ts.forEach(leadingCommentRanges, function (range) {
+            return hasInternalAnnotation(range, currentSourceFile);
+        });
+    }
+    ts.isInternalDeclaration = isInternalDeclaration;
+    var declarationEmitNodeBuilderFlags = 1024 |
+        2048 |
+        4096 |
+        8 |
+        524288 |
+        4 |
+        1;
+    function transformDeclarations(context) {
+        var throwDiagnostic = function () { return ts.Debug.fail("Diagnostic emitted without context"); };
+        var getSymbolAccessibilityDiagnostic = throwDiagnostic;
+        var needsDeclare = true;
+        var isBundledEmit = false;
+        var resultHasExternalModuleIndicator = false;
+        var needsScopeFixMarker = false;
+        var resultHasScopeMarker = false;
+        var enclosingDeclaration;
+        var necessaryTypeReferences;
+        var lateMarkedStatements;
+        var lateStatementReplacementMap;
+        var suppressNewDiagnosticContexts;
+        var exportedModulesFromDeclarationEmit;
+        var host = context.getEmitHost();
+        var symbolTracker = {
+            trackSymbol: trackSymbol,
+            reportInaccessibleThisError: reportInaccessibleThisError,
+            reportInaccessibleUniqueSymbolError: reportInaccessibleUniqueSymbolError,
+            reportPrivateInBaseOfClassExpression: reportPrivateInBaseOfClassExpression,
+            reportLikelyUnsafeImportRequiredError: reportLikelyUnsafeImportRequiredError,
+            moduleResolverHost: host,
+            trackReferencedAmbientModule: trackReferencedAmbientModule,
+            trackExternalModuleSymbolOfImportTypeNode: trackExternalModuleSymbolOfImportTypeNode,
+            reportNonlocalAugmentation: reportNonlocalAugmentation
+        };
+        var errorNameNode;
+        var currentSourceFile;
+        var refs;
+        var libs;
+        var emittedImports;
+        var resolver = context.getEmitResolver();
+        var options = context.getCompilerOptions();
+        var noResolve = options.noResolve, stripInternal = options.stripInternal;
+        return transformRoot;
+        function recordTypeReferenceDirectivesIfNecessary(typeReferenceDirectives) {
+            if (!typeReferenceDirectives) {
+                return;
+            }
+            necessaryTypeReferences = necessaryTypeReferences || ts.createMap();
+            for (var _i = 0, typeReferenceDirectives_2 = typeReferenceDirectives; _i < typeReferenceDirectives_2.length; _i++) {
+                var ref = typeReferenceDirectives_2[_i];
+                necessaryTypeReferences.set(ref, true);
+            }
+        }
+        function trackReferencedAmbientModule(node, symbol) {
+            var directives = resolver.getTypeReferenceDirectivesForSymbol(symbol, 67108863);
+            if (ts.length(directives)) {
+                return recordTypeReferenceDirectivesIfNecessary(directives);
+            }
+            var container = ts.getSourceFileOfNode(node);
+            refs.set("" + ts.getOriginalNodeId(container), container);
+        }
+        function handleSymbolAccessibilityError(symbolAccessibilityResult) {
+            if (symbolAccessibilityResult.accessibility === 0) {
+                if (symbolAccessibilityResult && symbolAccessibilityResult.aliasesToMakeVisible) {
+                    if (!lateMarkedStatements) {
+                        lateMarkedStatements = symbolAccessibilityResult.aliasesToMakeVisible;
+                    }
+                    else {
+                        for (var _i = 0, _a = symbolAccessibilityResult.aliasesToMakeVisible; _i < _a.length; _i++) {
+                            var ref = _a[_i];
+                            ts.pushIfUnique(lateMarkedStatements, ref);
+                        }
+                    }
+                }
+            }
+            else {
+                var errorInfo = getSymbolAccessibilityDiagnostic(symbolAccessibilityResult);
+                if (errorInfo) {
+                    if (errorInfo.typeName) {
+                        context.addDiagnostic(ts.createDiagnosticForNode(symbolAccessibilityResult.errorNode || errorInfo.errorNode, errorInfo.diagnosticMessage, ts.getTextOfNode(errorInfo.typeName), symbolAccessibilityResult.errorSymbolName, symbolAccessibilityResult.errorModuleName));
+                    }
+                    else {
+                        context.addDiagnostic(ts.createDiagnosticForNode(symbolAccessibilityResult.errorNode || errorInfo.errorNode, errorInfo.diagnosticMessage, symbolAccessibilityResult.errorSymbolName, symbolAccessibilityResult.errorModuleName));
+                    }
+                }
+            }
+        }
+        function trackExternalModuleSymbolOfImportTypeNode(symbol) {
+            if (!isBundledEmit) {
+                (exportedModulesFromDeclarationEmit || (exportedModulesFromDeclarationEmit = [])).push(symbol);
+            }
+        }
+        function trackSymbol(symbol, enclosingDeclaration, meaning) {
+            if (symbol.flags & 262144)
+                return;
+            handleSymbolAccessibilityError(resolver.isSymbolAccessible(symbol, enclosingDeclaration, meaning, true));
+            recordTypeReferenceDirectivesIfNecessary(resolver.getTypeReferenceDirectivesForSymbol(symbol, meaning));
+        }
+        function reportPrivateInBaseOfClassExpression(propertyName) {
+            if (errorNameNode) {
+                context.addDiagnostic(ts.createDiagnosticForNode(errorNameNode, ts.Diagnostics.Property_0_of_exported_class_expression_may_not_be_private_or_protected, propertyName));
+            }
+        }
+        function reportInaccessibleUniqueSymbolError() {
+            if (errorNameNode) {
+                context.addDiagnostic(ts.createDiagnosticForNode(errorNameNode, ts.Diagnostics.The_inferred_type_of_0_references_an_inaccessible_1_type_A_type_annotation_is_necessary, ts.declarationNameToString(errorNameNode), "unique symbol"));
+            }
+        }
+        function reportInaccessibleThisError() {
+            if (errorNameNode) {
+                context.addDiagnostic(ts.createDiagnosticForNode(errorNameNode, ts.Diagnostics.The_inferred_type_of_0_references_an_inaccessible_1_type_A_type_annotation_is_necessary, ts.declarationNameToString(errorNameNode), "this"));
+            }
+        }
+        function reportLikelyUnsafeImportRequiredError(specifier) {
+            if (errorNameNode) {
+                context.addDiagnostic(ts.createDiagnosticForNode(errorNameNode, ts.Diagnostics.The_inferred_type_of_0_cannot_be_named_without_a_reference_to_1_This_is_likely_not_portable_A_type_annotation_is_necessary, ts.declarationNameToString(errorNameNode), specifier));
+            }
+        }
+        function reportNonlocalAugmentation(containingFile, parentSymbol, symbol) {
+            var primaryDeclaration = ts.find(parentSymbol.declarations, function (d) { return ts.getSourceFileOfNode(d) === containingFile; });
+            var augmentingDeclarations = ts.filter(symbol.declarations, function (d) { return ts.getSourceFileOfNode(d) !== containingFile; });
+            for (var _i = 0, augmentingDeclarations_1 = augmentingDeclarations; _i < augmentingDeclarations_1.length; _i++) {
+                var augmentations = augmentingDeclarations_1[_i];
+                context.addDiagnostic(ts.addRelatedInfo(ts.createDiagnosticForNode(augmentations, ts.Diagnostics.Declaration_augments_declaration_in_another_file_This_cannot_be_serialized), ts.createDiagnosticForNode(primaryDeclaration, ts.Diagnostics.This_is_the_declaration_being_augmented_Consider_moving_the_augmenting_declaration_into_the_same_file)));
+            }
+        }
+        function transformDeclarationsForJS(sourceFile, bundled) {
+            var oldDiag = getSymbolAccessibilityDiagnostic;
+            getSymbolAccessibilityDiagnostic = function (s) { return ({
+                diagnosticMessage: s.errorModuleName
+                    ? ts.Diagnostics.Declaration_emit_for_this_file_requires_using_private_name_0_from_module_1_An_explicit_type_annotation_may_unblock_declaration_emit
+                    : ts.Diagnostics.Declaration_emit_for_this_file_requires_using_private_name_0_An_explicit_type_annotation_may_unblock_declaration_emit,
+                errorNode: s.errorNode || sourceFile
+            }); };
+            var result = resolver.getDeclarationStatementsForSourceFile(sourceFile, declarationEmitNodeBuilderFlags, symbolTracker, bundled);
+            getSymbolAccessibilityDiagnostic = oldDiag;
+            return result;
+        }
+        function transformRoot(node) {
+            if (node.kind === 290 && node.isDeclarationFile) {
+                return node;
+            }
+            if (node.kind === 291) {
+                isBundledEmit = true;
+                refs = ts.createMap();
+                libs = ts.createMap();
+                var hasNoDefaultLib_1 = false;
+                var bundle = ts.createBundle(ts.map(node.sourceFiles, function (sourceFile) {
+                    if (sourceFile.isDeclarationFile)
+                        return undefined;
+                    hasNoDefaultLib_1 = hasNoDefaultLib_1 || sourceFile.hasNoDefaultLib;
+                    currentSourceFile = sourceFile;
+                    enclosingDeclaration = sourceFile;
+                    lateMarkedStatements = undefined;
+                    suppressNewDiagnosticContexts = false;
+                    lateStatementReplacementMap = ts.createMap();
+                    getSymbolAccessibilityDiagnostic = throwDiagnostic;
+                    needsScopeFixMarker = false;
+                    resultHasScopeMarker = false;
+                    collectReferences(sourceFile, refs);
+                    collectLibs(sourceFile, libs);
+                    if (ts.isExternalOrCommonJsModule(sourceFile) || ts.isJsonSourceFile(sourceFile)) {
+                        resultHasExternalModuleIndicator = false;
+                        needsDeclare = false;
+                        var statements = ts.isSourceFileJS(sourceFile) ? ts.createNodeArray(transformDeclarationsForJS(sourceFile, true)) : ts.visitNodes(sourceFile.statements, visitDeclarationStatements);
+                        var newFile = ts.updateSourceFileNode(sourceFile, [ts.createModuleDeclaration([], [ts.createModifier(130)], ts.createLiteral(ts.getResolvedExternalModuleName(context.getEmitHost(), sourceFile)), ts.createModuleBlock(ts.setTextRange(ts.createNodeArray(transformAndReplaceLatePaintedStatements(statements)), sourceFile.statements)))], true, [], [], false, []);
+                        return newFile;
+                    }
+                    needsDeclare = true;
+                    var updated = ts.isSourceFileJS(sourceFile) ? ts.createNodeArray(transformDeclarationsForJS(sourceFile)) : ts.visitNodes(sourceFile.statements, visitDeclarationStatements);
+                    return ts.updateSourceFileNode(sourceFile, transformAndReplaceLatePaintedStatements(updated), true, [], [], false, []);
+                }), ts.mapDefined(node.prepends, function (prepend) {
+                    if (prepend.kind === 293) {
+                        var sourceFile = ts.createUnparsedSourceFile(prepend, "dts", stripInternal);
+                        hasNoDefaultLib_1 = hasNoDefaultLib_1 || !!sourceFile.hasNoDefaultLib;
+                        collectReferences(sourceFile, refs);
+                        recordTypeReferenceDirectivesIfNecessary(sourceFile.typeReferenceDirectives);
+                        collectLibs(sourceFile, libs);
+                        return sourceFile;
+                    }
+                    return prepend;
+                }));
+                bundle.syntheticFileReferences = [];
+                bundle.syntheticTypeReferences = getFileReferencesForUsedTypeReferences();
+                bundle.syntheticLibReferences = getLibReferences();
+                bundle.hasNoDefaultLib = hasNoDefaultLib_1;
+                var outputFilePath_1 = ts.getDirectoryPath(ts.normalizeSlashes(ts.getOutputPathsFor(node, host, true).declarationFilePath));
+                var referenceVisitor_1 = mapReferencesIntoArray(bundle.syntheticFileReferences, outputFilePath_1);
+                refs.forEach(referenceVisitor_1);
+                return bundle;
+            }
+            needsDeclare = true;
+            needsScopeFixMarker = false;
+            resultHasScopeMarker = false;
+            enclosingDeclaration = node;
+            currentSourceFile = node;
+            getSymbolAccessibilityDiagnostic = throwDiagnostic;
+            isBundledEmit = false;
+            resultHasExternalModuleIndicator = false;
+            suppressNewDiagnosticContexts = false;
+            lateMarkedStatements = undefined;
+            lateStatementReplacementMap = ts.createMap();
+            necessaryTypeReferences = undefined;
+            refs = collectReferences(currentSourceFile, ts.createMap());
+            libs = collectLibs(currentSourceFile, ts.createMap());
+            var references = [];
+            var outputFilePath = ts.getDirectoryPath(ts.normalizeSlashes(ts.getOutputPathsFor(node, host, true).declarationFilePath));
+            var referenceVisitor = mapReferencesIntoArray(references, outputFilePath);
+            var combinedStatements;
+            if (ts.isSourceFileJS(currentSourceFile)) {
+                combinedStatements = ts.createNodeArray(transformDeclarationsForJS(node));
+                refs.forEach(referenceVisitor);
+                emittedImports = ts.filter(combinedStatements, ts.isAnyImportSyntax);
+            }
+            else {
+                var statements = ts.visitNodes(node.statements, visitDeclarationStatements);
+                combinedStatements = ts.setTextRange(ts.createNodeArray(transformAndReplaceLatePaintedStatements(statements)), node.statements);
+                refs.forEach(referenceVisitor);
+                emittedImports = ts.filter(combinedStatements, ts.isAnyImportSyntax);
+                if (ts.isExternalModule(node) && (!resultHasExternalModuleIndicator || (needsScopeFixMarker && !resultHasScopeMarker))) {
+                    combinedStatements = ts.setTextRange(ts.createNodeArray(__spreadArrays(combinedStatements, [ts.createEmptyExports()])), combinedStatements);
+                }
+            }
+            var updated = ts.updateSourceFileNode(node, combinedStatements, true, references, getFileReferencesForUsedTypeReferences(), node.hasNoDefaultLib, getLibReferences());
+            updated.exportedModulesFromDeclarationEmit = exportedModulesFromDeclarationEmit;
+            return updated;
+            function getLibReferences() {
+                return ts.map(ts.arrayFrom(libs.keys()), function (lib) { return ({ fileName: lib, pos: -1, end: -1 }); });
+            }
+            function getFileReferencesForUsedTypeReferences() {
+                return necessaryTypeReferences ? ts.mapDefined(ts.arrayFrom(necessaryTypeReferences.keys()), getFileReferenceForTypeName) : [];
+            }
+            function getFileReferenceForTypeName(typeName) {
+                if (emittedImports) {
+                    for (var _i = 0, emittedImports_1 = emittedImports; _i < emittedImports_1.length; _i++) {
+                        var importStatement = emittedImports_1[_i];
+                        if (ts.isImportEqualsDeclaration(importStatement) && ts.isExternalModuleReference(importStatement.moduleReference)) {
+                            var expr = importStatement.moduleReference.expression;
+                            if (ts.isStringLiteralLike(expr) && expr.text === typeName) {
+                                return undefined;
+                            }
+                        }
+                        else if (ts.isImportDeclaration(importStatement) && ts.isStringLiteral(importStatement.moduleSpecifier) && importStatement.moduleSpecifier.text === typeName) {
+                            return undefined;
+                        }
+                    }
+                }
+                return { fileName: typeName, pos: -1, end: -1 };
+            }
+            function mapReferencesIntoArray(references, outputFilePath) {
+                return function (file) {
+                    var declFileName;
+                    if (file.isDeclarationFile) {
+                        declFileName = file.fileName;
+                    }
+                    else {
+                        if (isBundledEmit && ts.contains(node.sourceFiles, file))
+                            return;
+                        var paths = ts.getOutputPathsFor(file, host, true);
+                        declFileName = paths.declarationFilePath || paths.jsFilePath || file.fileName;
+                    }
+                    if (declFileName) {
+                        var specifier = ts.moduleSpecifiers.getModuleSpecifier(__assign(__assign({}, options), { baseUrl: options.baseUrl && ts.toPath(options.baseUrl, host.getCurrentDirectory(), host.getCanonicalFileName) }), currentSourceFile, ts.toPath(outputFilePath, host.getCurrentDirectory(), host.getCanonicalFileName), ts.toPath(declFileName, host.getCurrentDirectory(), host.getCanonicalFileName), host, undefined);
+                        if (!ts.pathIsRelative(specifier)) {
+                            recordTypeReferenceDirectivesIfNecessary([specifier]);
+                            return;
+                        }
+                        var fileName = ts.getRelativePathToDirectoryOrUrl(outputFilePath, declFileName, host.getCurrentDirectory(), host.getCanonicalFileName, false);
+                        if (ts.startsWith(fileName, "./") && ts.hasExtension(fileName)) {
+                            fileName = fileName.substring(2);
+                        }
+                        if (ts.startsWith(fileName, "node_modules/") || ts.pathContainsNodeModules(fileName)) {
+                            return;
+                        }
+                        references.push({ pos: -1, end: -1, fileName: fileName });
+                    }
+                };
+            }
+        }
+        function collectReferences(sourceFile, ret) {
+            if (noResolve || (!ts.isUnparsedSource(sourceFile) && ts.isSourceFileJS(sourceFile)))
+                return ret;
+            ts.forEach(sourceFile.referencedFiles, function (f) {
+                var elem = host.getSourceFileFromReference(sourceFile, f);
+                if (elem) {
+                    ret.set("" + ts.getOriginalNodeId(elem), elem);
+                }
+            });
+            return ret;
+        }
+        function collectLibs(sourceFile, ret) {
+            ts.forEach(sourceFile.libReferenceDirectives, function (ref) {
+                var lib = host.getLibFileFromReference(ref);
+                if (lib) {
+                    ret.set(ts.toFileNameLowerCase(ref.fileName), true);
+                }
+            });
+            return ret;
+        }
+        function filterBindingPatternInitializers(name) {
+            if (name.kind === 75) {
+                return name;
+            }
+            else {
+                if (name.kind === 190) {
+                    return ts.updateArrayBindingPattern(name, ts.visitNodes(name.elements, visitBindingElement));
+                }
+                else {
+                    return ts.updateObjectBindingPattern(name, ts.visitNodes(name.elements, visitBindingElement));
+                }
+            }
+            function visitBindingElement(elem) {
+                if (elem.kind === 215) {
+                    return elem;
+                }
+                return ts.updateBindingElement(elem, elem.dotDotDotToken, elem.propertyName, filterBindingPatternInitializers(elem.name), shouldPrintWithInitializer(elem) ? elem.initializer : undefined);
+            }
+        }
+        function ensureParameter(p, modifierMask, type) {
+            var oldDiag;
+            if (!suppressNewDiagnosticContexts) {
+                oldDiag = getSymbolAccessibilityDiagnostic;
+                getSymbolAccessibilityDiagnostic = ts.createGetSymbolAccessibilityDiagnosticForNode(p);
+            }
+            var newParam = ts.updateParameter(p, undefined, maskModifiers(p, modifierMask), p.dotDotDotToken, filterBindingPatternInitializers(p.name), resolver.isOptionalParameter(p) ? (p.questionToken || ts.createToken(57)) : undefined, ensureType(p, type || p.type, true), ensureNoInitializer(p));
+            if (!suppressNewDiagnosticContexts) {
+                getSymbolAccessibilityDiagnostic = oldDiag;
+            }
+            return newParam;
+        }
+        function shouldPrintWithInitializer(node) {
+            return canHaveLiteralInitializer(node) && resolver.isLiteralConstDeclaration(ts.getParseTreeNode(node));
+        }
+        function ensureNoInitializer(node) {
+            if (shouldPrintWithInitializer(node)) {
+                return resolver.createLiteralConstValue(ts.getParseTreeNode(node), symbolTracker);
+            }
+            return undefined;
+        }
+        function ensureType(node, type, ignorePrivate) {
+            if (!ignorePrivate && ts.hasModifier(node, 8)) {
+                return;
+            }
+            if (shouldPrintWithInitializer(node)) {
+                return;
+            }
+            var shouldUseResolverType = node.kind === 156 &&
+                (resolver.isRequiredInitializedParameter(node) ||
+                    resolver.isOptionalUninitializedParameterProperty(node));
+            if (type && !shouldUseResolverType) {
+                return ts.visitNode(type, visitDeclarationSubtree);
+            }
+            if (!ts.getParseTreeNode(node)) {
+                return type ? ts.visitNode(type, visitDeclarationSubtree) : ts.createKeywordTypeNode(125);
+            }
+            if (node.kind === 164) {
+                return ts.createKeywordTypeNode(125);
+            }
+            errorNameNode = node.name;
+            var oldDiag;
+            if (!suppressNewDiagnosticContexts) {
+                oldDiag = getSymbolAccessibilityDiagnostic;
+                getSymbolAccessibilityDiagnostic = ts.createGetSymbolAccessibilityDiagnosticForNode(node);
+            }
+            if (node.kind === 242 || node.kind === 191) {
+                return cleanup(resolver.createTypeOfDeclaration(node, enclosingDeclaration, declarationEmitNodeBuilderFlags, symbolTracker));
+            }
+            if (node.kind === 156
+                || node.kind === 159
+                || node.kind === 158) {
+                if (!node.initializer)
+                    return cleanup(resolver.createTypeOfDeclaration(node, enclosingDeclaration, declarationEmitNodeBuilderFlags, symbolTracker, shouldUseResolverType));
+                return cleanup(resolver.createTypeOfDeclaration(node, enclosingDeclaration, declarationEmitNodeBuilderFlags, symbolTracker, shouldUseResolverType) || resolver.createTypeOfExpression(node.initializer, enclosingDeclaration, declarationEmitNodeBuilderFlags, symbolTracker));
+            }
+            return cleanup(resolver.createReturnTypeOfSignatureDeclaration(node, enclosingDeclaration, declarationEmitNodeBuilderFlags, symbolTracker));
+            function cleanup(returnValue) {
+                errorNameNode = undefined;
+                if (!suppressNewDiagnosticContexts) {
+                    getSymbolAccessibilityDiagnostic = oldDiag;
+                }
+                return returnValue || ts.createKeywordTypeNode(125);
+            }
+        }
+        function isDeclarationAndNotVisible(node) {
+            node = ts.getParseTreeNode(node);
+            switch (node.kind) {
+                case 244:
+                case 249:
+                case 246:
+                case 245:
+                case 247:
+                case 248:
+                    return !resolver.isDeclarationVisible(node);
+                case 242:
+                    return !getBindingNameVisible(node);
+                case 253:
+                case 254:
+                case 260:
+                case 259:
+                    return false;
+            }
+            return false;
+        }
+        function getBindingNameVisible(elem) {
+            if (ts.isOmittedExpression(elem)) {
+                return false;
+            }
+            if (ts.isBindingPattern(elem.name)) {
+                return ts.some(elem.name.elements, getBindingNameVisible);
+            }
+            else {
+                return resolver.isDeclarationVisible(elem);
+            }
+        }
+        function updateParamsList(node, params, modifierMask) {
+            if (ts.hasModifier(node, 8)) {
+                return undefined;
+            }
+            var newParams = ts.map(params, function (p) { return ensureParameter(p, modifierMask); });
+            if (!newParams) {
+                return undefined;
+            }
+            return ts.createNodeArray(newParams, params.hasTrailingComma);
+        }
+        function updateAccessorParamsList(input, isPrivate) {
+            var newParams;
+            if (!isPrivate) {
+                var thisParameter = ts.getThisParameter(input);
+                if (thisParameter) {
+                    newParams = [ensureParameter(thisParameter)];
+                }
+            }
+            if (ts.isSetAccessorDeclaration(input)) {
+                var newValueParameter = void 0;
+                if (!isPrivate) {
+                    var valueParameter = ts.getSetAccessorValueParameter(input);
+                    if (valueParameter) {
+                        var accessorType = getTypeAnnotationFromAllAccessorDeclarations(input, resolver.getAllAccessorDeclarations(input));
+                        newValueParameter = ensureParameter(valueParameter, undefined, accessorType);
+                    }
+                }
+                if (!newValueParameter) {
+                    newValueParameter = ts.createParameter(undefined, undefined, undefined, "value");
+                }
+                newParams = ts.append(newParams, newValueParameter);
+            }
+            return ts.createNodeArray(newParams || ts.emptyArray);
+        }
+        function ensureTypeParams(node, params) {
+            return ts.hasModifier(node, 8) ? undefined : ts.visitNodes(params, visitDeclarationSubtree);
+        }
+        function isEnclosingDeclaration(node) {
+            return ts.isSourceFile(node)
+                || ts.isTypeAliasDeclaration(node)
+                || ts.isModuleDeclaration(node)
+                || ts.isClassDeclaration(node)
+                || ts.isInterfaceDeclaration(node)
+                || ts.isFunctionLike(node)
+                || ts.isIndexSignatureDeclaration(node)
+                || ts.isMappedTypeNode(node);
+        }
+        function checkEntityNameVisibility(entityName, enclosingDeclaration) {
+            var visibilityResult = resolver.isEntityNameVisible(entityName, enclosingDeclaration);
+            handleSymbolAccessibilityError(visibilityResult);
+            recordTypeReferenceDirectivesIfNecessary(resolver.getTypeReferenceDirectivesForEntityName(entityName));
+        }
+        function preserveJsDoc(updated, original) {
+            if (ts.hasJSDocNodes(updated) && ts.hasJSDocNodes(original)) {
+                updated.jsDoc = original.jsDoc;
+            }
+            return ts.setCommentRange(updated, ts.getCommentRange(original));
+        }
+        function rewriteModuleSpecifier(parent, input) {
+            if (!input)
+                return undefined;
+            resultHasExternalModuleIndicator = resultHasExternalModuleIndicator || (parent.kind !== 249 && parent.kind !== 188);
+            if (ts.isStringLiteralLike(input)) {
+                if (isBundledEmit) {
+                    var newName = ts.getExternalModuleNameFromDeclaration(context.getEmitHost(), resolver, parent);
+                    if (newName) {
+                        return ts.createLiteral(newName);
+                    }
+                }
+                else {
+                    var symbol = resolver.getSymbolOfExternalModuleSpecifier(input);
+                    if (symbol) {
+                        (exportedModulesFromDeclarationEmit || (exportedModulesFromDeclarationEmit = [])).push(symbol);
+                    }
+                }
+            }
+            return input;
+        }
+        function transformImportEqualsDeclaration(decl) {
+            if (!resolver.isDeclarationVisible(decl))
+                return;
+            if (decl.moduleReference.kind === 265) {
+                var specifier = ts.getExternalModuleImportEqualsDeclarationExpression(decl);
+                return ts.updateImportEqualsDeclaration(decl, undefined, decl.modifiers, decl.name, ts.updateExternalModuleReference(decl.moduleReference, rewriteModuleSpecifier(decl, specifier)));
+            }
+            else {
+                var oldDiag = getSymbolAccessibilityDiagnostic;
+                getSymbolAccessibilityDiagnostic = ts.createGetSymbolAccessibilityDiagnosticForNode(decl);
+                checkEntityNameVisibility(decl.moduleReference, enclosingDeclaration);
+                getSymbolAccessibilityDiagnostic = oldDiag;
+                return decl;
+            }
+        }
+        function transformImportDeclaration(decl) {
+            if (!decl.importClause) {
+                return ts.updateImportDeclaration(decl, undefined, decl.modifiers, decl.importClause, rewriteModuleSpecifier(decl, decl.moduleSpecifier));
+            }
+            var visibleDefaultBinding = decl.importClause && decl.importClause.name && resolver.isDeclarationVisible(decl.importClause) ? decl.importClause.name : undefined;
+            if (!decl.importClause.namedBindings) {
+                return visibleDefaultBinding && ts.updateImportDeclaration(decl, undefined, decl.modifiers, ts.updateImportClause(decl.importClause, visibleDefaultBinding, undefined, decl.importClause.isTypeOnly), rewriteModuleSpecifier(decl, decl.moduleSpecifier));
+            }
+            if (decl.importClause.namedBindings.kind === 256) {
+                var namedBindings = resolver.isDeclarationVisible(decl.importClause.namedBindings) ? decl.importClause.namedBindings : undefined;
+                return visibleDefaultBinding || namedBindings ? ts.updateImportDeclaration(decl, undefined, decl.modifiers, ts.updateImportClause(decl.importClause, visibleDefaultBinding, namedBindings, decl.importClause.isTypeOnly), rewriteModuleSpecifier(decl, decl.moduleSpecifier)) : undefined;
+            }
+            var bindingList = ts.mapDefined(decl.importClause.namedBindings.elements, function (b) { return resolver.isDeclarationVisible(b) ? b : undefined; });
+            if ((bindingList && bindingList.length) || visibleDefaultBinding) {
+                return ts.updateImportDeclaration(decl, undefined, decl.modifiers, ts.updateImportClause(decl.importClause, visibleDefaultBinding, bindingList && bindingList.length ? ts.updateNamedImports(decl.importClause.namedBindings, bindingList) : undefined, decl.importClause.isTypeOnly), rewriteModuleSpecifier(decl, decl.moduleSpecifier));
+            }
+            if (resolver.isImportRequiredByAugmentation(decl)) {
+                return ts.updateImportDeclaration(decl, undefined, decl.modifiers, undefined, rewriteModuleSpecifier(decl, decl.moduleSpecifier));
+            }
+        }
+        function transformAndReplaceLatePaintedStatements(statements) {
+            while (ts.length(lateMarkedStatements)) {
+                var i = lateMarkedStatements.shift();
+                if (!ts.isLateVisibilityPaintedStatement(i)) {
+                    return ts.Debug.fail("Late replaced statement was found which is not handled by the declaration transformer!: " + (ts.SyntaxKind ? ts.SyntaxKind[i.kind] : i.kind));
+                }
+                var priorNeedsDeclare = needsDeclare;
+                needsDeclare = i.parent && ts.isSourceFile(i.parent) && !(ts.isExternalModule(i.parent) && isBundledEmit);
+                var result = transformTopLevelDeclaration(i);
+                needsDeclare = priorNeedsDeclare;
+                lateStatementReplacementMap.set("" + ts.getOriginalNodeId(i), result);
+            }
+            return ts.visitNodes(statements, visitLateVisibilityMarkedStatements);
+            function visitLateVisibilityMarkedStatements(statement) {
+                if (ts.isLateVisibilityPaintedStatement(statement)) {
+                    var key = "" + ts.getOriginalNodeId(statement);
+                    if (lateStatementReplacementMap.has(key)) {
+                        var result = lateStatementReplacementMap.get(key);
+                        lateStatementReplacementMap.delete(key);
+                        if (result) {
+                            if (ts.isArray(result) ? ts.some(result, ts.needsScopeMarker) : ts.needsScopeMarker(result)) {
+                                needsScopeFixMarker = true;
+                            }
+                            if (ts.isSourceFile(statement.parent) && (ts.isArray(result) ? ts.some(result, ts.isExternalModuleIndicator) : ts.isExternalModuleIndicator(result))) {
+                                resultHasExternalModuleIndicator = true;
+                            }
+                        }
+                        return result;
+                    }
+                }
+                return statement;
+            }
+        }
+        function visitDeclarationSubtree(input) {
+            if (shouldStripInternal(input))
+                return;
+            if (ts.isDeclaration(input)) {
+                if (isDeclarationAndNotVisible(input))
+                    return;
+                if (ts.hasDynamicName(input) && !resolver.isLateBound(ts.getParseTreeNode(input))) {
+                    return;
+                }
+            }
+            if (ts.isFunctionLike(input) && resolver.isImplementationOfOverload(input))
+                return;
+            if (ts.isSemicolonClassElement(input))
+                return;
+            var previousEnclosingDeclaration;
+            if (isEnclosingDeclaration(input)) {
+                previousEnclosingDeclaration = enclosingDeclaration;
+                enclosingDeclaration = input;
+            }
+            var oldDiag = getSymbolAccessibilityDiagnostic;
+            var canProduceDiagnostic = ts.canProduceDiagnostics(input);
+            var oldWithinObjectLiteralType = suppressNewDiagnosticContexts;
+            var shouldEnterSuppressNewDiagnosticsContextContext = ((input.kind === 173 || input.kind === 186) && input.parent.kind !== 247);
+            if (ts.isMethodDeclaration(input) || ts.isMethodSignature(input)) {
+                if (ts.hasModifier(input, 8)) {
+                    if (input.symbol && input.symbol.declarations && input.symbol.declarations[0] !== input)
+                        return;
+                    return cleanup(ts.createProperty(undefined, ensureModifiers(input), input.name, undefined, undefined, undefined));
+                }
+            }
+            if (canProduceDiagnostic && !suppressNewDiagnosticContexts) {
+                getSymbolAccessibilityDiagnostic = ts.createGetSymbolAccessibilityDiagnosticForNode(input);
+            }
+            if (ts.isTypeQueryNode(input)) {
+                checkEntityNameVisibility(input.exprName, enclosingDeclaration);
+            }
+            if (shouldEnterSuppressNewDiagnosticsContextContext) {
+                suppressNewDiagnosticContexts = true;
+            }
+            if (isProcessedComponent(input)) {
+                switch (input.kind) {
+                    case 216: {
+                        if ((ts.isEntityName(input.expression) || ts.isEntityNameExpression(input.expression))) {
+                            checkEntityNameVisibility(input.expression, enclosingDeclaration);
+                        }
+                        var node = ts.visitEachChild(input, visitDeclarationSubtree, context);
+                        return cleanup(ts.updateExpressionWithTypeArguments(node, ts.parenthesizeTypeParameters(node.typeArguments), node.expression));
+                    }
+                    case 169: {
+                        checkEntityNameVisibility(input.typeName, enclosingDeclaration);
+                        var node = ts.visitEachChild(input, visitDeclarationSubtree, context);
+                        return cleanup(ts.updateTypeReferenceNode(node, node.typeName, ts.parenthesizeTypeParameters(node.typeArguments)));
+                    }
+                    case 166:
+                        return cleanup(ts.updateConstructSignature(input, ensureTypeParams(input, input.typeParameters), updateParamsList(input, input.parameters), ensureType(input, input.type)));
+                    case 162: {
+                        var ctor = ts.createSignatureDeclaration(162, ensureTypeParams(input, input.typeParameters), updateParamsList(input, input.parameters, 0), undefined);
+                        ctor.modifiers = ts.createNodeArray(ensureModifiers(input));
+                        return cleanup(ctor);
+                    }
+                    case 161: {
+                        if (ts.isPrivateIdentifier(input.name)) {
+                            return cleanup(undefined);
+                        }
+                        var sig = ts.createSignatureDeclaration(160, ensureTypeParams(input, input.typeParameters), updateParamsList(input, input.parameters), ensureType(input, input.type));
+                        sig.name = input.name;
+                        sig.modifiers = ts.createNodeArray(ensureModifiers(input));
+                        sig.questionToken = input.questionToken;
+                        return cleanup(sig);
+                    }
+                    case 163: {
+                        if (ts.isPrivateIdentifier(input.name)) {
+                            return cleanup(undefined);
+                        }
+                        var accessorType = getTypeAnnotationFromAllAccessorDeclarations(input, resolver.getAllAccessorDeclarations(input));
+                        return cleanup(ts.updateGetAccessor(input, undefined, ensureModifiers(input), input.name, updateAccessorParamsList(input, ts.hasModifier(input, 8)), ensureType(input, accessorType), undefined));
+                    }
+                    case 164: {
+                        if (ts.isPrivateIdentifier(input.name)) {
+                            return cleanup(undefined);
+                        }
+                        return cleanup(ts.updateSetAccessor(input, undefined, ensureModifiers(input), input.name, updateAccessorParamsList(input, ts.hasModifier(input, 8)), undefined));
+                    }
+                    case 159:
+                        if (ts.isPrivateIdentifier(input.name)) {
+                            return cleanup(undefined);
+                        }
+                        return cleanup(ts.updateProperty(input, undefined, ensureModifiers(input), input.name, input.questionToken, ensureType(input, input.type), ensureNoInitializer(input)));
+                    case 158:
+                        if (ts.isPrivateIdentifier(input.name)) {
+                            return cleanup(undefined);
+                        }
+                        return cleanup(ts.updatePropertySignature(input, ensureModifiers(input), input.name, input.questionToken, ensureType(input, input.type), ensureNoInitializer(input)));
+                    case 160: {
+                        if (ts.isPrivateIdentifier(input.name)) {
+                            return cleanup(undefined);
+                        }
+                        return cleanup(ts.updateMethodSignature(input, ensureTypeParams(input, input.typeParameters), updateParamsList(input, input.parameters), ensureType(input, input.type), input.name, input.questionToken));
+                    }
+                    case 165: {
+                        return cleanup(ts.updateCallSignature(input, ensureTypeParams(input, input.typeParameters), updateParamsList(input, input.parameters), ensureType(input, input.type)));
+                    }
+                    case 167: {
+                        return cleanup(ts.updateIndexSignature(input, undefined, ensureModifiers(input), updateParamsList(input, input.parameters), ts.visitNode(input.type, visitDeclarationSubtree) || ts.createKeywordTypeNode(125)));
+                    }
+                    case 242: {
+                        if (ts.isBindingPattern(input.name)) {
+                            return recreateBindingPattern(input.name);
+                        }
+                        shouldEnterSuppressNewDiagnosticsContextContext = true;
+                        suppressNewDiagnosticContexts = true;
+                        return cleanup(ts.updateTypeScriptVariableDeclaration(input, input.name, undefined, ensureType(input, input.type), ensureNoInitializer(input)));
+                    }
+                    case 155: {
+                        if (isPrivateMethodTypeParameter(input) && (input.default || input.constraint)) {
+                            return cleanup(ts.updateTypeParameterDeclaration(input, input.name, undefined, undefined));
+                        }
+                        return cleanup(ts.visitEachChild(input, visitDeclarationSubtree, context));
+                    }
+                    case 180: {
+                        var checkType = ts.visitNode(input.checkType, visitDeclarationSubtree);
+                        var extendsType = ts.visitNode(input.extendsType, visitDeclarationSubtree);
+                        var oldEnclosingDecl = enclosingDeclaration;
+                        enclosingDeclaration = input.trueType;
+                        var trueType = ts.visitNode(input.trueType, visitDeclarationSubtree);
+                        enclosingDeclaration = oldEnclosingDecl;
+                        var falseType = ts.visitNode(input.falseType, visitDeclarationSubtree);
+                        return cleanup(ts.updateConditionalTypeNode(input, checkType, extendsType, trueType, falseType));
+                    }
+                    case 170: {
+                        return cleanup(ts.updateFunctionTypeNode(input, ts.visitNodes(input.typeParameters, visitDeclarationSubtree), updateParamsList(input, input.parameters), ts.visitNode(input.type, visitDeclarationSubtree)));
+                    }
+                    case 171: {
+                        return cleanup(ts.updateConstructorTypeNode(input, ts.visitNodes(input.typeParameters, visitDeclarationSubtree), updateParamsList(input, input.parameters), ts.visitNode(input.type, visitDeclarationSubtree)));
+                    }
+                    case 188: {
+                        if (!ts.isLiteralImportTypeNode(input))
+                            return cleanup(input);
+                        return cleanup(ts.updateImportTypeNode(input, ts.updateLiteralTypeNode(input.argument, rewriteModuleSpecifier(input, input.argument.literal)), input.qualifier, ts.visitNodes(input.typeArguments, visitDeclarationSubtree, ts.isTypeNode), input.isTypeOf));
+                    }
+                    default: ts.Debug.assertNever(input, "Attempted to process unhandled node kind: " + ts.SyntaxKind[input.kind]);
+                }
+            }
+            return cleanup(ts.visitEachChild(input, visitDeclarationSubtree, context));
+            function cleanup(returnValue) {
+                if (returnValue && canProduceDiagnostic && ts.hasDynamicName(input)) {
+                    checkName(input);
+                }
+                if (isEnclosingDeclaration(input)) {
+                    enclosingDeclaration = previousEnclosingDeclaration;
+                }
+                if (canProduceDiagnostic && !suppressNewDiagnosticContexts) {
+                    getSymbolAccessibilityDiagnostic = oldDiag;
+                }
+                if (shouldEnterSuppressNewDiagnosticsContextContext) {
+                    suppressNewDiagnosticContexts = oldWithinObjectLiteralType;
+                }
+                if (returnValue === input) {
+                    return returnValue;
+                }
+                return returnValue && ts.setOriginalNode(preserveJsDoc(returnValue, input), input);
+            }
+        }
+        function isPrivateMethodTypeParameter(node) {
+            return node.parent.kind === 161 && ts.hasModifier(node.parent, 8);
+        }
+        function visitDeclarationStatements(input) {
+            if (!isPreservedDeclarationStatement(input)) {
+                return;
+            }
+            if (shouldStripInternal(input))
+                return;
+            switch (input.kind) {
+                case 260: {
+                    if (ts.isSourceFile(input.parent)) {
+                        resultHasExternalModuleIndicator = true;
+                    }
+                    resultHasScopeMarker = true;
+                    return ts.updateExportDeclaration(input, undefined, input.modifiers, input.exportClause, rewriteModuleSpecifier(input, input.moduleSpecifier), input.isTypeOnly);
+                }
+                case 259: {
+                    if (ts.isSourceFile(input.parent)) {
+                        resultHasExternalModuleIndicator = true;
+                    }
+                    resultHasScopeMarker = true;
+                    if (input.expression.kind === 75) {
+                        return input;
+                    }
+                    else {
+                        var newId = ts.createOptimisticUniqueName("_default");
+                        getSymbolAccessibilityDiagnostic = function () { return ({
+                            diagnosticMessage: ts.Diagnostics.Default_export_of_the_module_has_or_is_using_private_name_0,
+                            errorNode: input
+                        }); };
+                        var varDecl = ts.createVariableDeclaration(newId, resolver.createTypeOfExpression(input.expression, input, declarationEmitNodeBuilderFlags, symbolTracker), undefined);
+                        var statement = ts.createVariableStatement(needsDeclare ? [ts.createModifier(130)] : [], ts.createVariableDeclarationList([varDecl], 2));
+                        return [statement, ts.updateExportAssignment(input, input.decorators, input.modifiers, newId)];
+                    }
+                }
+            }
+            var result = transformTopLevelDeclaration(input);
+            lateStatementReplacementMap.set("" + ts.getOriginalNodeId(input), result);
+            return input;
+        }
+        function stripExportModifiers(statement) {
+            if (ts.isImportEqualsDeclaration(statement) || ts.hasModifier(statement, 512)) {
+                return statement;
+            }
+            var clone = ts.getMutableClone(statement);
+            var modifiers = ts.createModifiersFromModifierFlags(ts.getModifierFlags(statement) & (3071 ^ 1));
+            clone.modifiers = modifiers.length ? ts.createNodeArray(modifiers) : undefined;
+            return clone;
+        }
+        function transformTopLevelDeclaration(input) {
+            if (shouldStripInternal(input))
+                return;
+            switch (input.kind) {
+                case 253: {
+                    return transformImportEqualsDeclaration(input);
+                }
+                case 254: {
+                    return transformImportDeclaration(input);
+                }
+            }
+            if (ts.isDeclaration(input) && isDeclarationAndNotVisible(input))
+                return;
+            if (ts.isFunctionLike(input) && resolver.isImplementationOfOverload(input))
+                return;
+            var previousEnclosingDeclaration;
+            if (isEnclosingDeclaration(input)) {
+                previousEnclosingDeclaration = enclosingDeclaration;
+                enclosingDeclaration = input;
+            }
+            var canProdiceDiagnostic = ts.canProduceDiagnostics(input);
+            var oldDiag = getSymbolAccessibilityDiagnostic;
+            if (canProdiceDiagnostic) {
+                getSymbolAccessibilityDiagnostic = ts.createGetSymbolAccessibilityDiagnosticForNode(input);
+            }
+            var previousNeedsDeclare = needsDeclare;
+            switch (input.kind) {
+                case 247:
+                    return cleanup(ts.updateTypeAliasDeclaration(input, undefined, ensureModifiers(input), input.name, ts.visitNodes(input.typeParameters, visitDeclarationSubtree, ts.isTypeParameterDeclaration), ts.visitNode(input.type, visitDeclarationSubtree, ts.isTypeNode)));
+                case 246: {
+                    return cleanup(ts.updateInterfaceDeclaration(input, undefined, ensureModifiers(input), input.name, ensureTypeParams(input, input.typeParameters), transformHeritageClauses(input.heritageClauses), ts.visitNodes(input.members, visitDeclarationSubtree)));
+                }
+                case 244: {
+                    var clean = cleanup(ts.updateFunctionDeclaration(input, undefined, ensureModifiers(input), undefined, input.name, ensureTypeParams(input, input.typeParameters), updateParamsList(input, input.parameters), ensureType(input, input.type), undefined));
+                    if (clean && resolver.isExpandoFunctionDeclaration(input)) {
+                        var props = resolver.getPropertiesOfContainerFunction(input);
+                        var fakespace_1 = ts.createModuleDeclaration(undefined, undefined, clean.name || ts.createIdentifier("_default"), ts.createModuleBlock([]), 16);
+                        fakespace_1.flags ^= 8;
+                        fakespace_1.parent = enclosingDeclaration;
+                        fakespace_1.locals = ts.createSymbolTable(props);
+                        fakespace_1.symbol = props[0].parent;
+                        var declarations = ts.mapDefined(props, function (p) {
+                            if (!ts.isPropertyAccessExpression(p.valueDeclaration)) {
+                                return undefined;
+                            }
+                            getSymbolAccessibilityDiagnostic = ts.createGetSymbolAccessibilityDiagnosticForNode(p.valueDeclaration);
+                            var type = resolver.createTypeOfDeclaration(p.valueDeclaration, fakespace_1, declarationEmitNodeBuilderFlags, symbolTracker);
+                            getSymbolAccessibilityDiagnostic = oldDiag;
+                            var varDecl = ts.createVariableDeclaration(ts.unescapeLeadingUnderscores(p.escapedName), type, undefined);
+                            return ts.createVariableStatement(undefined, ts.createVariableDeclarationList([varDecl]));
+                        });
+                        var namespaceDecl = ts.createModuleDeclaration(undefined, ensureModifiers(input), input.name, ts.createModuleBlock(declarations), 16);
+                        if (!ts.hasModifier(clean, 512)) {
+                            return [clean, namespaceDecl];
+                        }
+                        var modifiers = ts.createModifiersFromModifierFlags((ts.getModifierFlags(clean) & ~513) | 2);
+                        var cleanDeclaration = ts.updateFunctionDeclaration(clean, undefined, modifiers, undefined, clean.name, clean.typeParameters, clean.parameters, clean.type, undefined);
+                        var namespaceDeclaration = ts.updateModuleDeclaration(namespaceDecl, undefined, modifiers, namespaceDecl.name, namespaceDecl.body);
+                        var exportDefaultDeclaration = ts.createExportAssignment(undefined, undefined, false, namespaceDecl.name);
+                        if (ts.isSourceFile(input.parent)) {
+                            resultHasExternalModuleIndicator = true;
+                        }
+                        resultHasScopeMarker = true;
+                        return [cleanDeclaration, namespaceDeclaration, exportDefaultDeclaration];
+                    }
+                    else {
+                        return clean;
+                    }
+                }
+                case 249: {
+                    needsDeclare = false;
+                    var inner = input.body;
+                    if (inner && inner.kind === 250) {
+                        var oldNeedsScopeFix = needsScopeFixMarker;
+                        var oldHasScopeFix = resultHasScopeMarker;
+                        resultHasScopeMarker = false;
+                        needsScopeFixMarker = false;
+                        var statements = ts.visitNodes(inner.statements, visitDeclarationStatements);
+                        var lateStatements = transformAndReplaceLatePaintedStatements(statements);
+                        if (input.flags & 8388608) {
+                            needsScopeFixMarker = false;
+                        }
+                        if (!ts.isGlobalScopeAugmentation(input) && !hasScopeMarker(lateStatements) && !resultHasScopeMarker) {
+                            if (needsScopeFixMarker) {
+                                lateStatements = ts.createNodeArray(__spreadArrays(lateStatements, [ts.createEmptyExports()]));
+                            }
+                            else {
+                                lateStatements = ts.visitNodes(lateStatements, stripExportModifiers);
+                            }
+                        }
+                        var body = ts.updateModuleBlock(inner, lateStatements);
+                        needsDeclare = previousNeedsDeclare;
+                        needsScopeFixMarker = oldNeedsScopeFix;
+                        resultHasScopeMarker = oldHasScopeFix;
+                        var mods = ensureModifiers(input);
+                        return cleanup(ts.updateModuleDeclaration(input, undefined, mods, ts.isExternalModuleAugmentation(input) ? rewriteModuleSpecifier(input, input.name) : input.name, body));
+                    }
+                    else {
+                        needsDeclare = previousNeedsDeclare;
+                        var mods = ensureModifiers(input);
+                        needsDeclare = false;
+                        ts.visitNode(inner, visitDeclarationStatements);
+                        var id = "" + ts.getOriginalNodeId(inner);
+                        var body = lateStatementReplacementMap.get(id);
+                        lateStatementReplacementMap.delete(id);
+                        return cleanup(ts.updateModuleDeclaration(input, undefined, mods, input.name, body));
+                    }
+                }
+                case 245: {
+                    var modifiers = ts.createNodeArray(ensureModifiers(input));
+                    var typeParameters = ensureTypeParams(input, input.typeParameters);
+                    var ctor = ts.getFirstConstructorWithBody(input);
+                    var parameterProperties = void 0;
+                    if (ctor) {
+                        var oldDiag_1 = getSymbolAccessibilityDiagnostic;
+                        parameterProperties = ts.compact(ts.flatMap(ctor.parameters, function (param) {
+                            if (!ts.hasModifier(param, 92) || shouldStripInternal(param))
+                                return;
+                            getSymbolAccessibilityDiagnostic = ts.createGetSymbolAccessibilityDiagnosticForNode(param);
+                            if (param.name.kind === 75) {
+                                return preserveJsDoc(ts.createProperty(undefined, ensureModifiers(param), param.name, param.questionToken, ensureType(param, param.type), ensureNoInitializer(param)), param);
+                            }
+                            else {
+                                return walkBindingPattern(param.name);
+                            }
+                            function walkBindingPattern(pattern) {
+                                var elems;
+                                for (var _i = 0, _a = pattern.elements; _i < _a.length; _i++) {
+                                    var elem = _a[_i];
+                                    if (ts.isOmittedExpression(elem))
+                                        continue;
+                                    if (ts.isBindingPattern(elem.name)) {
+                                        elems = ts.concatenate(elems, walkBindingPattern(elem.name));
+                                    }
+                                    elems = elems || [];
+                                    elems.push(ts.createProperty(undefined, ensureModifiers(param), elem.name, undefined, ensureType(elem, undefined), undefined));
+                                }
+                                return elems;
+                            }
+                        }));
+                        getSymbolAccessibilityDiagnostic = oldDiag_1;
+                    }
+                    var hasPrivateIdentifier = ts.some(input.members, function (member) { return !!member.name && ts.isPrivateIdentifier(member.name); });
+                    var privateIdentifier = hasPrivateIdentifier ? [
+                        ts.createProperty(undefined, undefined, ts.createPrivateIdentifier("#private"), undefined, undefined, undefined)
+                    ] : undefined;
+                    var memberNodes = ts.concatenate(ts.concatenate(privateIdentifier, parameterProperties), ts.visitNodes(input.members, visitDeclarationSubtree));
+                    var members = ts.createNodeArray(memberNodes);
+                    var extendsClause_1 = ts.getEffectiveBaseTypeNode(input);
+                    if (extendsClause_1 && !ts.isEntityNameExpression(extendsClause_1.expression) && extendsClause_1.expression.kind !== 100) {
+                        var oldId = input.name ? ts.unescapeLeadingUnderscores(input.name.escapedText) : "default";
+                        var newId_1 = ts.createOptimisticUniqueName(oldId + "_base");
+                        getSymbolAccessibilityDiagnostic = function () { return ({
+                            diagnosticMessage: ts.Diagnostics.extends_clause_of_exported_class_0_has_or_is_using_private_name_1,
+                            errorNode: extendsClause_1,
+                            typeName: input.name
+                        }); };
+                        var varDecl = ts.createVariableDeclaration(newId_1, resolver.createTypeOfExpression(extendsClause_1.expression, input, declarationEmitNodeBuilderFlags, symbolTracker), undefined);
+                        var statement = ts.createVariableStatement(needsDeclare ? [ts.createModifier(130)] : [], ts.createVariableDeclarationList([varDecl], 2));
+                        var heritageClauses = ts.createNodeArray(ts.map(input.heritageClauses, function (clause) {
+                            if (clause.token === 90) {
+                                var oldDiag_2 = getSymbolAccessibilityDiagnostic;
+                                getSymbolAccessibilityDiagnostic = ts.createGetSymbolAccessibilityDiagnosticForNode(clause.types[0]);
+                                var newClause = ts.updateHeritageClause(clause, ts.map(clause.types, function (t) { return ts.updateExpressionWithTypeArguments(t, ts.visitNodes(t.typeArguments, visitDeclarationSubtree), newId_1); }));
+                                getSymbolAccessibilityDiagnostic = oldDiag_2;
+                                return newClause;
+                            }
+                            return ts.updateHeritageClause(clause, ts.visitNodes(ts.createNodeArray(ts.filter(clause.types, function (t) { return ts.isEntityNameExpression(t.expression) || t.expression.kind === 100; })), visitDeclarationSubtree));
+                        }));
+                        return [statement, cleanup(ts.updateClassDeclaration(input, undefined, modifiers, input.name, typeParameters, heritageClauses, members))];
+                    }
+                    else {
+                        var heritageClauses = transformHeritageClauses(input.heritageClauses);
+                        return cleanup(ts.updateClassDeclaration(input, undefined, modifiers, input.name, typeParameters, heritageClauses, members));
+                    }
+                }
+                case 225: {
+                    return cleanup(transformVariableStatement(input));
+                }
+                case 248: {
+                    return cleanup(ts.updateEnumDeclaration(input, undefined, ts.createNodeArray(ensureModifiers(input)), input.name, ts.createNodeArray(ts.mapDefined(input.members, function (m) {
+                        if (shouldStripInternal(m))
+                            return;
+                        var constValue = resolver.getConstantValue(m);
+                        return preserveJsDoc(ts.updateEnumMember(m, m.name, constValue !== undefined ? ts.createLiteral(constValue) : undefined), m);
+                    }))));
+                }
+            }
+            return ts.Debug.assertNever(input, "Unhandled top-level node in declaration emit: " + ts.SyntaxKind[input.kind]);
+            function cleanup(node) {
+                if (isEnclosingDeclaration(input)) {
+                    enclosingDeclaration = previousEnclosingDeclaration;
+                }
+                if (canProdiceDiagnostic) {
+                    getSymbolAccessibilityDiagnostic = oldDiag;
+                }
+                if (input.kind === 249) {
+                    needsDeclare = previousNeedsDeclare;
+                }
+                if (node === input) {
+                    return node;
+                }
+                return node && ts.setOriginalNode(preserveJsDoc(node, input), input);
+            }
+        }
+        function transformVariableStatement(input) {
+            if (!ts.forEach(input.declarationList.declarations, getBindingNameVisible))
+                return;
+            var nodes = ts.visitNodes(input.declarationList.declarations, visitDeclarationSubtree);
+            if (!ts.length(nodes))
+                return;
+            return ts.updateVariableStatement(input, ts.createNodeArray(ensureModifiers(input)), ts.updateVariableDeclarationList(input.declarationList, nodes));
+        }
+        function recreateBindingPattern(d) {
+            return ts.flatten(ts.mapDefined(d.elements, function (e) { return recreateBindingElement(e); }));
+        }
+        function recreateBindingElement(e) {
+            if (e.kind === 215) {
+                return;
+            }
+            if (e.name) {
+                if (!getBindingNameVisible(e))
+                    return;
+                if (ts.isBindingPattern(e.name)) {
+                    return recreateBindingPattern(e.name);
+                }
+                else {
+                    return ts.createVariableDeclaration(e.name, ensureType(e, undefined), undefined);
+                }
+            }
+        }
+        function checkName(node) {
+            var oldDiag;
+            if (!suppressNewDiagnosticContexts) {
+                oldDiag = getSymbolAccessibilityDiagnostic;
+                getSymbolAccessibilityDiagnostic = ts.createGetSymbolAccessibilityDiagnosticForNodeName(node);
+            }
+            errorNameNode = node.name;
+            ts.Debug.assert(resolver.isLateBound(ts.getParseTreeNode(node)));
+            var decl = node;
+            var entityName = decl.name.expression;
+            checkEntityNameVisibility(entityName, enclosingDeclaration);
+            if (!suppressNewDiagnosticContexts) {
+                getSymbolAccessibilityDiagnostic = oldDiag;
+            }
+            errorNameNode = undefined;
+        }
+        function shouldStripInternal(node) {
+            return !!stripInternal && !!node && isInternalDeclaration(node, currentSourceFile);
+        }
+        function isScopeMarker(node) {
+            return ts.isExportAssignment(node) || ts.isExportDeclaration(node);
+        }
+        function hasScopeMarker(statements) {
+            return ts.some(statements, isScopeMarker);
+        }
+        function ensureModifiers(node) {
+            var currentFlags = ts.getModifierFlags(node);
+            var newFlags = ensureModifierFlags(node);
+            if (currentFlags === newFlags) {
+                return node.modifiers;
+            }
+            return ts.createModifiersFromModifierFlags(newFlags);
+        }
+        function ensureModifierFlags(node) {
+            var mask = 3071 ^ (4 | 256);
+            var additions = (needsDeclare && !isAlwaysType(node)) ? 2 : 0;
+            var parentIsFile = node.parent.kind === 290;
+            if (!parentIsFile || (isBundledEmit && parentIsFile && ts.isExternalModule(node.parent))) {
+                mask ^= 2;
+                additions = 0;
+            }
+            return maskModifierFlags(node, mask, additions);
+        }
+        function getTypeAnnotationFromAllAccessorDeclarations(node, accessors) {
+            var accessorType = getTypeAnnotationFromAccessor(node);
+            if (!accessorType && node !== accessors.firstAccessor) {
+                accessorType = getTypeAnnotationFromAccessor(accessors.firstAccessor);
+                getSymbolAccessibilityDiagnostic = ts.createGetSymbolAccessibilityDiagnosticForNode(accessors.firstAccessor);
+            }
+            if (!accessorType && accessors.secondAccessor && node !== accessors.secondAccessor) {
+                accessorType = getTypeAnnotationFromAccessor(accessors.secondAccessor);
+                getSymbolAccessibilityDiagnostic = ts.createGetSymbolAccessibilityDiagnosticForNode(accessors.secondAccessor);
+            }
+            return accessorType;
+        }
+        function transformHeritageClauses(nodes) {
+            return ts.createNodeArray(ts.filter(ts.map(nodes, function (clause) { return ts.updateHeritageClause(clause, ts.visitNodes(ts.createNodeArray(ts.filter(clause.types, function (t) {
+                return ts.isEntityNameExpression(t.expression) || (clause.token === 90 && t.expression.kind === 100);
+            })), visitDeclarationSubtree)); }), function (clause) { return clause.types && !!clause.types.length; }));
+        }
+    }
+    ts.transformDeclarations = transformDeclarations;
+    function isAlwaysType(node) {
+        if (node.kind === 246) {
+            return true;
+        }
+        return false;
+    }
+    function maskModifiers(node, modifierMask, modifierAdditions) {
+        return ts.createModifiersFromModifierFlags(maskModifierFlags(node, modifierMask, modifierAdditions));
+    }
+    function maskModifierFlags(node, modifierMask, modifierAdditions) {
+        if (modifierMask === void 0) { modifierMask = 3071 ^ 4; }
+        if (modifierAdditions === void 0) { modifierAdditions = 0; }
+        var flags = (ts.getModifierFlags(node) & modifierMask) | modifierAdditions;
+        if (flags & 512 && !(flags & 1)) {
+            flags ^= 1;
+        }
+        if (flags & 512 && flags & 2) {
+            flags ^= 2;
+        }
+        return flags;
+    }
+    function getTypeAnnotationFromAccessor(accessor) {
+        if (accessor) {
+            return accessor.kind === 163
+                ? accessor.type
+                : accessor.parameters.length > 0
+                    ? accessor.parameters[0].type
+                    : undefined;
+        }
+    }
+    function canHaveLiteralInitializer(node) {
+        switch (node.kind) {
+            case 159:
+            case 158:
+                return !ts.hasModifier(node, 8);
+            case 156:
+            case 242:
+                return true;
+        }
+        return false;
+    }
+    function isPreservedDeclarationStatement(node) {
+        switch (node.kind) {
+            case 244:
+            case 249:
+            case 253:
+            case 246:
+            case 245:
+            case 247:
+            case 248:
+            case 225:
+            case 254:
+            case 260:
+            case 259:
+                return true;
+        }
+        return false;
+    }
+    function isProcessedComponent(node) {
+        switch (node.kind) {
+            case 166:
+            case 162:
+            case 161:
+            case 163:
+            case 164:
+            case 159:
+            case 158:
+            case 160:
+            case 165:
+            case 167:
+            case 242:
+            case 155:
+            case 216:
+            case 169:
+            case 180:
+            case 170:
+            case 171:
+            case 188:
+                return true;
+        }
+        return false;
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function getModuleTransformer(moduleKind) {
+        switch (moduleKind) {
+            case ts.ModuleKind.ESNext:
+            case ts.ModuleKind.ES2020:
+            case ts.ModuleKind.ES2015:
+                return ts.transformECMAScriptModule;
+            case ts.ModuleKind.System:
+                return ts.transformSystemModule;
+            default:
+                return ts.transformModule;
+        }
+    }
+    ts.noTransformers = { scriptTransformers: ts.emptyArray, declarationTransformers: ts.emptyArray };
+    function getTransformers(compilerOptions, customTransformers, emitOnlyDtsFiles) {
+        return {
+            scriptTransformers: getScriptTransformers(compilerOptions, customTransformers, emitOnlyDtsFiles),
+            declarationTransformers: getDeclarationTransformers(customTransformers),
+        };
+    }
+    ts.getTransformers = getTransformers;
+    function getScriptTransformers(compilerOptions, customTransformers, emitOnlyDtsFiles) {
+        if (emitOnlyDtsFiles)
+            return ts.emptyArray;
+        var jsx = compilerOptions.jsx;
+        var languageVersion = ts.getEmitScriptTarget(compilerOptions);
+        var moduleKind = ts.getEmitModuleKind(compilerOptions);
+        var transformers = [];
+        ts.addRange(transformers, customTransformers && ts.map(customTransformers.before, wrapScriptTransformerFactory));
+        transformers.push(ts.transformTypeScript);
+        transformers.push(ts.transformClassFields);
+        if (jsx === 2) {
+            transformers.push(ts.transformJsx);
+        }
+        if (languageVersion < 99) {
+            transformers.push(ts.transformESNext);
+        }
+        if (languageVersion < 7) {
+            transformers.push(ts.transformES2020);
+        }
+        if (languageVersion < 6) {
+            transformers.push(ts.transformES2019);
+        }
+        if (languageVersion < 5) {
+            transformers.push(ts.transformES2018);
+        }
+        if (languageVersion < 4) {
+            transformers.push(ts.transformES2017);
+        }
+        if (languageVersion < 3) {
+            transformers.push(ts.transformES2016);
+        }
+        if (languageVersion < 2) {
+            transformers.push(ts.transformES2015);
+            transformers.push(ts.transformGenerators);
+        }
+        transformers.push(getModuleTransformer(moduleKind));
+        if (languageVersion < 1) {
+            transformers.push(ts.transformES5);
+        }
+        ts.addRange(transformers, customTransformers && ts.map(customTransformers.after, wrapScriptTransformerFactory));
+        return transformers;
+    }
+    function getDeclarationTransformers(customTransformers) {
+        var transformers = [];
+        transformers.push(ts.transformDeclarations);
+        ts.addRange(transformers, customTransformers && ts.map(customTransformers.afterDeclarations, wrapDeclarationTransformerFactory));
+        return transformers;
+    }
+    function wrapCustomTransformer(transformer) {
+        return function (node) { return ts.isBundle(node) ? transformer.transformBundle(node) : transformer.transformSourceFile(node); };
+    }
+    function wrapCustomTransformerFactory(transformer, handleDefault) {
+        return function (context) {
+            var customTransformer = transformer(context);
+            return typeof customTransformer === "function"
+                ? handleDefault(customTransformer)
+                : wrapCustomTransformer(customTransformer);
+        };
+    }
+    function wrapScriptTransformerFactory(transformer) {
+        return wrapCustomTransformerFactory(transformer, ts.chainBundle);
+    }
+    function wrapDeclarationTransformerFactory(transformer) {
+        return wrapCustomTransformerFactory(transformer, ts.identity);
+    }
+    function noEmitSubstitution(_hint, node) {
+        return node;
+    }
+    ts.noEmitSubstitution = noEmitSubstitution;
+    function noEmitNotification(hint, node, callback) {
+        callback(hint, node);
+    }
+    ts.noEmitNotification = noEmitNotification;
+    function transformNodes(resolver, host, options, nodes, transformers, allowDtsFiles) {
+        var enabledSyntaxKindFeatures = new Array(331);
+        var lexicalEnvironmentVariableDeclarations;
+        var lexicalEnvironmentFunctionDeclarations;
+        var lexicalEnvironmentStatements;
+        var lexicalEnvironmentFlags = 0;
+        var lexicalEnvironmentVariableDeclarationsStack = [];
+        var lexicalEnvironmentFunctionDeclarationsStack = [];
+        var lexicalEnvironmentStatementsStack = [];
+        var lexicalEnvironmentFlagsStack = [];
+        var lexicalEnvironmentStackOffset = 0;
+        var lexicalEnvironmentSuspended = false;
+        var emitHelpers;
+        var onSubstituteNode = noEmitSubstitution;
+        var onEmitNode = noEmitNotification;
+        var state = 0;
+        var diagnostics = [];
+        var context = {
+            getCompilerOptions: function () { return options; },
+            getEmitResolver: function () { return resolver; },
+            getEmitHost: function () { return host; },
+            startLexicalEnvironment: startLexicalEnvironment,
+            suspendLexicalEnvironment: suspendLexicalEnvironment,
+            resumeLexicalEnvironment: resumeLexicalEnvironment,
+            endLexicalEnvironment: endLexicalEnvironment,
+            setLexicalEnvironmentFlags: setLexicalEnvironmentFlags,
+            getLexicalEnvironmentFlags: getLexicalEnvironmentFlags,
+            hoistVariableDeclaration: hoistVariableDeclaration,
+            hoistFunctionDeclaration: hoistFunctionDeclaration,
+            addInitializationStatement: addInitializationStatement,
+            requestEmitHelper: requestEmitHelper,
+            readEmitHelpers: readEmitHelpers,
+            enableSubstitution: enableSubstitution,
+            enableEmitNotification: enableEmitNotification,
+            isSubstitutionEnabled: isSubstitutionEnabled,
+            isEmitNotificationEnabled: isEmitNotificationEnabled,
+            get onSubstituteNode() { return onSubstituteNode; },
+            set onSubstituteNode(value) {
+                ts.Debug.assert(state < 1, "Cannot modify transformation hooks after initialization has completed.");
+                ts.Debug.assert(value !== undefined, "Value must not be 'undefined'");
+                onSubstituteNode = value;
+            },
+            get onEmitNode() { return onEmitNode; },
+            set onEmitNode(value) {
+                ts.Debug.assert(state < 1, "Cannot modify transformation hooks after initialization has completed.");
+                ts.Debug.assert(value !== undefined, "Value must not be 'undefined'");
+                onEmitNode = value;
+            },
+            addDiagnostic: function (diag) {
+                diagnostics.push(diag);
+            }
+        };
+        for (var _i = 0, nodes_4 = nodes; _i < nodes_4.length; _i++) {
+            var node = nodes_4[_i];
+            ts.disposeEmitNodes(ts.getSourceFileOfNode(ts.getParseTreeNode(node)));
+        }
+        ts.performance.mark("beforeTransform");
+        var transformersWithContext = transformers.map(function (t) { return t(context); });
+        var transformation = function (node) {
+            for (var _i = 0, transformersWithContext_1 = transformersWithContext; _i < transformersWithContext_1.length; _i++) {
+                var transform = transformersWithContext_1[_i];
+                node = transform(node);
+            }
+            return node;
+        };
+        state = 1;
+        var transformed = ts.map(nodes, allowDtsFiles ? transformation : transformRoot);
+        state = 2;
+        ts.performance.mark("afterTransform");
+        ts.performance.measure("transformTime", "beforeTransform", "afterTransform");
+        return {
+            transformed: transformed,
+            substituteNode: substituteNode,
+            emitNodeWithNotification: emitNodeWithNotification,
+            isEmitNotificationEnabled: isEmitNotificationEnabled,
+            dispose: dispose,
+            diagnostics: diagnostics
+        };
+        function transformRoot(node) {
+            return node && (!ts.isSourceFile(node) || !node.isDeclarationFile) ? transformation(node) : node;
+        }
+        function enableSubstitution(kind) {
+            ts.Debug.assert(state < 2, "Cannot modify the transformation context after transformation has completed.");
+            enabledSyntaxKindFeatures[kind] |= 1;
+        }
+        function isSubstitutionEnabled(node) {
+            return (enabledSyntaxKindFeatures[node.kind] & 1) !== 0
+                && (ts.getEmitFlags(node) & 4) === 0;
+        }
+        function substituteNode(hint, node) {
+            ts.Debug.assert(state < 3, "Cannot substitute a node after the result is disposed.");
+            return node && isSubstitutionEnabled(node) && onSubstituteNode(hint, node) || node;
+        }
+        function enableEmitNotification(kind) {
+            ts.Debug.assert(state < 2, "Cannot modify the transformation context after transformation has completed.");
+            enabledSyntaxKindFeatures[kind] |= 2;
+        }
+        function isEmitNotificationEnabled(node) {
+            return (enabledSyntaxKindFeatures[node.kind] & 2) !== 0
+                || (ts.getEmitFlags(node) & 2) !== 0;
+        }
+        function emitNodeWithNotification(hint, node, emitCallback) {
+            ts.Debug.assert(state < 3, "Cannot invoke TransformationResult callbacks after the result is disposed.");
+            if (node) {
+                if (isEmitNotificationEnabled(node)) {
+                    onEmitNode(hint, node, emitCallback);
+                }
+                else {
+                    emitCallback(hint, node);
+                }
+            }
+        }
+        function hoistVariableDeclaration(name) {
+            ts.Debug.assert(state > 0, "Cannot modify the lexical environment during initialization.");
+            ts.Debug.assert(state < 2, "Cannot modify the lexical environment after transformation has completed.");
+            var decl = ts.setEmitFlags(ts.createVariableDeclaration(name), 64);
+            if (!lexicalEnvironmentVariableDeclarations) {
+                lexicalEnvironmentVariableDeclarations = [decl];
+            }
+            else {
+                lexicalEnvironmentVariableDeclarations.push(decl);
+            }
+            if (lexicalEnvironmentFlags & 1) {
+                lexicalEnvironmentFlags |= 2;
+            }
+        }
+        function hoistFunctionDeclaration(func) {
+            ts.Debug.assert(state > 0, "Cannot modify the lexical environment during initialization.");
+            ts.Debug.assert(state < 2, "Cannot modify the lexical environment after transformation has completed.");
+            ts.setEmitFlags(func, 1048576);
+            if (!lexicalEnvironmentFunctionDeclarations) {
+                lexicalEnvironmentFunctionDeclarations = [func];
+            }
+            else {
+                lexicalEnvironmentFunctionDeclarations.push(func);
+            }
+        }
+        function addInitializationStatement(node) {
+            ts.Debug.assert(state > 0, "Cannot modify the lexical environment during initialization.");
+            ts.Debug.assert(state < 2, "Cannot modify the lexical environment after transformation has completed.");
+            ts.setEmitFlags(node, 1048576);
+            if (!lexicalEnvironmentStatements) {
+                lexicalEnvironmentStatements = [node];
+            }
+            else {
+                lexicalEnvironmentStatements.push(node);
+            }
+        }
+        function startLexicalEnvironment() {
+            ts.Debug.assert(state > 0, "Cannot modify the lexical environment during initialization.");
+            ts.Debug.assert(state < 2, "Cannot modify the lexical environment after transformation has completed.");
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is suspended.");
+            lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentVariableDeclarations;
+            lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentFunctionDeclarations;
+            lexicalEnvironmentStatementsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentStatements;
+            lexicalEnvironmentFlagsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentFlags;
+            lexicalEnvironmentStackOffset++;
+            lexicalEnvironmentVariableDeclarations = undefined;
+            lexicalEnvironmentFunctionDeclarations = undefined;
+            lexicalEnvironmentStatements = undefined;
+            lexicalEnvironmentFlags = 0;
+        }
+        function suspendLexicalEnvironment() {
+            ts.Debug.assert(state > 0, "Cannot modify the lexical environment during initialization.");
+            ts.Debug.assert(state < 2, "Cannot modify the lexical environment after transformation has completed.");
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is already suspended.");
+            lexicalEnvironmentSuspended = true;
+        }
+        function resumeLexicalEnvironment() {
+            ts.Debug.assert(state > 0, "Cannot modify the lexical environment during initialization.");
+            ts.Debug.assert(state < 2, "Cannot modify the lexical environment after transformation has completed.");
+            ts.Debug.assert(lexicalEnvironmentSuspended, "Lexical environment is not suspended.");
+            lexicalEnvironmentSuspended = false;
+        }
+        function endLexicalEnvironment() {
+            ts.Debug.assert(state > 0, "Cannot modify the lexical environment during initialization.");
+            ts.Debug.assert(state < 2, "Cannot modify the lexical environment after transformation has completed.");
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is suspended.");
+            var statements;
+            if (lexicalEnvironmentVariableDeclarations ||
+                lexicalEnvironmentFunctionDeclarations ||
+                lexicalEnvironmentStatements) {
+                if (lexicalEnvironmentFunctionDeclarations) {
+                    statements = __spreadArrays(lexicalEnvironmentFunctionDeclarations);
+                }
+                if (lexicalEnvironmentVariableDeclarations) {
+                    var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList(lexicalEnvironmentVariableDeclarations));
+                    ts.setEmitFlags(statement, 1048576);
+                    if (!statements) {
+                        statements = [statement];
+                    }
+                    else {
+                        statements.push(statement);
+                    }
+                }
+                if (lexicalEnvironmentStatements) {
+                    if (!statements) {
+                        statements = __spreadArrays(lexicalEnvironmentStatements);
+                    }
+                    else {
+                        statements = __spreadArrays(statements, lexicalEnvironmentStatements);
+                    }
+                }
+            }
+            lexicalEnvironmentStackOffset--;
+            lexicalEnvironmentVariableDeclarations = lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset];
+            lexicalEnvironmentFunctionDeclarations = lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset];
+            lexicalEnvironmentStatements = lexicalEnvironmentStatementsStack[lexicalEnvironmentStackOffset];
+            lexicalEnvironmentFlags = lexicalEnvironmentFlagsStack[lexicalEnvironmentStackOffset];
+            if (lexicalEnvironmentStackOffset === 0) {
+                lexicalEnvironmentVariableDeclarationsStack = [];
+                lexicalEnvironmentFunctionDeclarationsStack = [];
+                lexicalEnvironmentStatementsStack = [];
+                lexicalEnvironmentFlagsStack = [];
+            }
+            return statements;
+        }
+        function setLexicalEnvironmentFlags(flags, value) {
+            lexicalEnvironmentFlags = value ?
+                lexicalEnvironmentFlags | flags :
+                lexicalEnvironmentFlags & ~flags;
+        }
+        function getLexicalEnvironmentFlags() {
+            return lexicalEnvironmentFlags;
+        }
+        function requestEmitHelper(helper) {
+            ts.Debug.assert(state > 0, "Cannot modify the transformation context during initialization.");
+            ts.Debug.assert(state < 2, "Cannot modify the transformation context after transformation has completed.");
+            ts.Debug.assert(!helper.scoped, "Cannot request a scoped emit helper.");
+            if (helper.dependencies) {
+                for (var _i = 0, _a = helper.dependencies; _i < _a.length; _i++) {
+                    var h = _a[_i];
+                    requestEmitHelper(h);
+                }
+            }
+            emitHelpers = ts.append(emitHelpers, helper);
+        }
+        function readEmitHelpers() {
+            ts.Debug.assert(state > 0, "Cannot modify the transformation context during initialization.");
+            ts.Debug.assert(state < 2, "Cannot modify the transformation context after transformation has completed.");
+            var helpers = emitHelpers;
+            emitHelpers = undefined;
+            return helpers;
+        }
+        function dispose() {
+            if (state < 3) {
+                for (var _i = 0, nodes_5 = nodes; _i < nodes_5.length; _i++) {
+                    var node = nodes_5[_i];
+                    ts.disposeEmitNodes(ts.getSourceFileOfNode(ts.getParseTreeNode(node)));
+                }
+                lexicalEnvironmentVariableDeclarations = undefined;
+                lexicalEnvironmentVariableDeclarationsStack = undefined;
+                lexicalEnvironmentFunctionDeclarations = undefined;
+                lexicalEnvironmentFunctionDeclarationsStack = undefined;
+                onSubstituteNode = undefined;
+                onEmitNode = undefined;
+                emitHelpers = undefined;
+                state = 3;
+            }
+        }
+    }
+    ts.transformNodes = transformNodes;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var brackets = createBracketsMap();
+    var syntheticParent = { pos: -1, end: -1 };
+    function isBuildInfoFile(file) {
+        return ts.fileExtensionIs(file, ".tsbuildinfo");
+    }
+    ts.isBuildInfoFile = isBuildInfoFile;
+    function forEachEmittedFile(host, action, sourceFilesOrTargetSourceFile, forceDtsEmit, onlyBuildInfo, includeBuildInfo) {
+        if (forceDtsEmit === void 0) { forceDtsEmit = false; }
+        var sourceFiles = ts.isArray(sourceFilesOrTargetSourceFile) ? sourceFilesOrTargetSourceFile : ts.getSourceFilesToEmit(host, sourceFilesOrTargetSourceFile, forceDtsEmit);
+        var options = host.getCompilerOptions();
+        if (options.outFile || options.out) {
+            var prepends = host.getPrependNodes();
+            if (sourceFiles.length || prepends.length) {
+                var bundle = ts.createBundle(sourceFiles, prepends);
+                var result = action(getOutputPathsFor(bundle, host, forceDtsEmit), bundle);
+                if (result) {
+                    return result;
+                }
+            }
+        }
+        else {
+            if (!onlyBuildInfo) {
+                for (var _a = 0, sourceFiles_1 = sourceFiles; _a < sourceFiles_1.length; _a++) {
+                    var sourceFile = sourceFiles_1[_a];
+                    var result = action(getOutputPathsFor(sourceFile, host, forceDtsEmit), sourceFile);
+                    if (result) {
+                        return result;
+                    }
+                }
+            }
+            if (includeBuildInfo) {
+                var buildInfoPath = getTsBuildInfoEmitOutputFilePath(host.getCompilerOptions());
+                if (buildInfoPath)
+                    return action({ buildInfoPath: buildInfoPath }, undefined);
+            }
+        }
+    }
+    ts.forEachEmittedFile = forEachEmittedFile;
+    function getTsBuildInfoEmitOutputFilePath(options) {
+        var configFile = options.configFilePath;
+        if (!ts.isIncrementalCompilation(options))
+            return undefined;
+        if (options.tsBuildInfoFile)
+            return options.tsBuildInfoFile;
+        var outPath = options.outFile || options.out;
+        var buildInfoExtensionLess;
+        if (outPath) {
+            buildInfoExtensionLess = ts.removeFileExtension(outPath);
+        }
+        else {
+            if (!configFile)
+                return undefined;
+            var configFileExtensionLess = ts.removeFileExtension(configFile);
+            buildInfoExtensionLess = options.outDir ?
+                options.rootDir ?
+                    ts.resolvePath(options.outDir, ts.getRelativePathFromDirectory(options.rootDir, configFileExtensionLess, true)) :
+                    ts.combinePaths(options.outDir, ts.getBaseFileName(configFileExtensionLess)) :
+                configFileExtensionLess;
+        }
+        return buildInfoExtensionLess + ".tsbuildinfo";
+    }
+    ts.getTsBuildInfoEmitOutputFilePath = getTsBuildInfoEmitOutputFilePath;
+    function getOutputPathsForBundle(options, forceDtsPaths) {
+        var outPath = options.outFile || options.out;
+        var jsFilePath = options.emitDeclarationOnly ? undefined : outPath;
+        var sourceMapFilePath = jsFilePath && getSourceMapFilePath(jsFilePath, options);
+        var declarationFilePath = (forceDtsPaths || ts.getEmitDeclarations(options)) ? ts.removeFileExtension(outPath) + ".d.ts" : undefined;
+        var declarationMapPath = declarationFilePath && ts.getAreDeclarationMapsEnabled(options) ? declarationFilePath + ".map" : undefined;
+        var buildInfoPath = getTsBuildInfoEmitOutputFilePath(options);
+        return { jsFilePath: jsFilePath, sourceMapFilePath: sourceMapFilePath, declarationFilePath: declarationFilePath, declarationMapPath: declarationMapPath, buildInfoPath: buildInfoPath };
+    }
+    ts.getOutputPathsForBundle = getOutputPathsForBundle;
+    function getOutputPathsFor(sourceFile, host, forceDtsPaths) {
+        var options = host.getCompilerOptions();
+        if (sourceFile.kind === 291) {
+            return getOutputPathsForBundle(options, forceDtsPaths);
+        }
+        else {
+            var ownOutputFilePath = ts.getOwnEmitOutputFilePath(sourceFile.fileName, host, getOutputExtension(sourceFile, options));
+            var isJsonFile = ts.isJsonSourceFile(sourceFile);
+            var isJsonEmittedToSameLocation = isJsonFile &&
+                ts.comparePaths(sourceFile.fileName, ownOutputFilePath, host.getCurrentDirectory(), !host.useCaseSensitiveFileNames()) === 0;
+            var jsFilePath = options.emitDeclarationOnly || isJsonEmittedToSameLocation ? undefined : ownOutputFilePath;
+            var sourceMapFilePath = !jsFilePath || ts.isJsonSourceFile(sourceFile) ? undefined : getSourceMapFilePath(jsFilePath, options);
+            var declarationFilePath = (forceDtsPaths || (ts.getEmitDeclarations(options) && !isJsonFile)) ? ts.getDeclarationEmitOutputFilePath(sourceFile.fileName, host) : undefined;
+            var declarationMapPath = declarationFilePath && ts.getAreDeclarationMapsEnabled(options) ? declarationFilePath + ".map" : undefined;
+            return { jsFilePath: jsFilePath, sourceMapFilePath: sourceMapFilePath, declarationFilePath: declarationFilePath, declarationMapPath: declarationMapPath, buildInfoPath: undefined };
+        }
+    }
+    ts.getOutputPathsFor = getOutputPathsFor;
+    function getSourceMapFilePath(jsFilePath, options) {
+        return (options.sourceMap && !options.inlineSourceMap) ? jsFilePath + ".map" : undefined;
+    }
+    function getOutputExtension(sourceFile, options) {
+        if (ts.isJsonSourceFile(sourceFile)) {
+            return ".json";
+        }
+        if (options.jsx === 1) {
+            if (ts.isSourceFileJS(sourceFile)) {
+                if (ts.fileExtensionIs(sourceFile.fileName, ".jsx")) {
+                    return ".jsx";
+                }
+            }
+            else if (sourceFile.languageVariant === 1) {
+                return ".jsx";
+            }
+        }
+        return ".js";
+    }
+    ts.getOutputExtension = getOutputExtension;
+    function rootDirOfOptions(configFile) {
+        return configFile.options.rootDir || ts.getDirectoryPath(ts.Debug.checkDefined(configFile.options.configFilePath));
+    }
+    function getOutputPathWithoutChangingExt(inputFileName, configFile, ignoreCase, outputDir) {
+        return outputDir ?
+            ts.resolvePath(outputDir, ts.getRelativePathFromDirectory(rootDirOfOptions(configFile), inputFileName, ignoreCase)) :
+            inputFileName;
+    }
+    function getOutputDeclarationFileName(inputFileName, configFile, ignoreCase) {
+        ts.Debug.assert(!ts.fileExtensionIs(inputFileName, ".d.ts") && !ts.fileExtensionIs(inputFileName, ".json"));
+        return ts.changeExtension(getOutputPathWithoutChangingExt(inputFileName, configFile, ignoreCase, configFile.options.declarationDir || configFile.options.outDir), ".d.ts");
+    }
+    ts.getOutputDeclarationFileName = getOutputDeclarationFileName;
+    function getOutputJSFileName(inputFileName, configFile, ignoreCase) {
+        if (configFile.options.emitDeclarationOnly)
+            return undefined;
+        var isJsonFile = ts.fileExtensionIs(inputFileName, ".json");
+        var outputFileName = ts.changeExtension(getOutputPathWithoutChangingExt(inputFileName, configFile, ignoreCase, configFile.options.outDir), isJsonFile ?
+            ".json" :
+            ts.fileExtensionIs(inputFileName, ".tsx") && configFile.options.jsx === 1 ?
+                ".jsx" :
+                ".js");
+        return !isJsonFile || ts.comparePaths(inputFileName, outputFileName, ts.Debug.checkDefined(configFile.options.configFilePath), ignoreCase) !== 0 ?
+            outputFileName :
+            undefined;
+    }
+    function createAddOutput() {
+        var outputs;
+        return { addOutput: addOutput, getOutputs: getOutputs };
+        function addOutput(path) {
+            if (path) {
+                (outputs || (outputs = [])).push(path);
+            }
+        }
+        function getOutputs() {
+            return outputs || ts.emptyArray;
+        }
+    }
+    function getSingleOutputFileNames(configFile, addOutput) {
+        var _a = getOutputPathsForBundle(configFile.options, false), jsFilePath = _a.jsFilePath, sourceMapFilePath = _a.sourceMapFilePath, declarationFilePath = _a.declarationFilePath, declarationMapPath = _a.declarationMapPath, buildInfoPath = _a.buildInfoPath;
+        addOutput(jsFilePath);
+        addOutput(sourceMapFilePath);
+        addOutput(declarationFilePath);
+        addOutput(declarationMapPath);
+        addOutput(buildInfoPath);
+    }
+    function getOwnOutputFileNames(configFile, inputFileName, ignoreCase, addOutput) {
+        if (ts.fileExtensionIs(inputFileName, ".d.ts"))
+            return;
+        var js = getOutputJSFileName(inputFileName, configFile, ignoreCase);
+        addOutput(js);
+        if (ts.fileExtensionIs(inputFileName, ".json"))
+            return;
+        if (js && configFile.options.sourceMap) {
+            addOutput(js + ".map");
+        }
+        if (ts.getEmitDeclarations(configFile.options)) {
+            var dts = getOutputDeclarationFileName(inputFileName, configFile, ignoreCase);
+            addOutput(dts);
+            if (configFile.options.declarationMap) {
+                addOutput(dts + ".map");
+            }
+        }
+    }
+    function getAllProjectOutputs(configFile, ignoreCase) {
+        var _a = createAddOutput(), addOutput = _a.addOutput, getOutputs = _a.getOutputs;
+        if (configFile.options.outFile || configFile.options.out) {
+            getSingleOutputFileNames(configFile, addOutput);
+        }
+        else {
+            for (var _b = 0, _c = configFile.fileNames; _b < _c.length; _b++) {
+                var inputFileName = _c[_b];
+                getOwnOutputFileNames(configFile, inputFileName, ignoreCase, addOutput);
+            }
+            addOutput(getTsBuildInfoEmitOutputFilePath(configFile.options));
+        }
+        return getOutputs();
+    }
+    ts.getAllProjectOutputs = getAllProjectOutputs;
+    function getOutputFileNames(commandLine, inputFileName, ignoreCase) {
+        inputFileName = ts.normalizePath(inputFileName);
+        ts.Debug.assert(ts.contains(commandLine.fileNames, inputFileName), "Expected fileName to be present in command line");
+        var _a = createAddOutput(), addOutput = _a.addOutput, getOutputs = _a.getOutputs;
+        if (commandLine.options.outFile || commandLine.options.out) {
+            getSingleOutputFileNames(commandLine, addOutput);
+        }
+        else {
+            getOwnOutputFileNames(commandLine, inputFileName, ignoreCase, addOutput);
+        }
+        return getOutputs();
+    }
+    ts.getOutputFileNames = getOutputFileNames;
+    function getFirstProjectOutput(configFile, ignoreCase) {
+        if (configFile.options.outFile || configFile.options.out) {
+            var jsFilePath = getOutputPathsForBundle(configFile.options, false).jsFilePath;
+            return ts.Debug.checkDefined(jsFilePath, "project " + configFile.options.configFilePath + " expected to have at least one output");
+        }
+        for (var _a = 0, _b = configFile.fileNames; _a < _b.length; _a++) {
+            var inputFileName = _b[_a];
+            if (ts.fileExtensionIs(inputFileName, ".d.ts"))
+                continue;
+            var jsFilePath = getOutputJSFileName(inputFileName, configFile, ignoreCase);
+            if (jsFilePath)
+                return jsFilePath;
+            if (ts.fileExtensionIs(inputFileName, ".json"))
+                continue;
+            if (ts.getEmitDeclarations(configFile.options)) {
+                return getOutputDeclarationFileName(inputFileName, configFile, ignoreCase);
+            }
+        }
+        var buildInfoPath = getTsBuildInfoEmitOutputFilePath(configFile.options);
+        if (buildInfoPath)
+            return buildInfoPath;
+        return ts.Debug.fail("project " + configFile.options.configFilePath + " expected to have at least one output");
+    }
+    ts.getFirstProjectOutput = getFirstProjectOutput;
+    function emitFiles(resolver, host, targetSourceFile, _a, emitOnlyDtsFiles, onlyBuildInfo, forceDtsEmit) {
+        var scriptTransformers = _a.scriptTransformers, declarationTransformers = _a.declarationTransformers;
+        var compilerOptions = host.getCompilerOptions();
+        var sourceMapDataList = (compilerOptions.sourceMap || compilerOptions.inlineSourceMap || ts.getAreDeclarationMapsEnabled(compilerOptions)) ? [] : undefined;
+        var emittedFilesList = compilerOptions.listEmittedFiles ? [] : undefined;
+        var emitterDiagnostics = ts.createDiagnosticCollection();
+        var newLine = ts.getNewLineCharacter(compilerOptions, function () { return host.getNewLine(); });
+        var writer = ts.createTextWriter(newLine);
+        var _b = ts.performance.createTimer("printTime", "beforePrint", "afterPrint"), enter = _b.enter, exit = _b.exit;
+        var bundleBuildInfo;
+        var emitSkipped = false;
+        var exportedModulesFromDeclarationEmit;
+        enter();
+        forEachEmittedFile(host, emitSourceFileOrBundle, ts.getSourceFilesToEmit(host, targetSourceFile, forceDtsEmit), forceDtsEmit, onlyBuildInfo, !targetSourceFile);
+        exit();
+        return {
+            emitSkipped: emitSkipped,
+            diagnostics: emitterDiagnostics.getDiagnostics(),
+            emittedFiles: emittedFilesList,
+            sourceMaps: sourceMapDataList,
+            exportedModulesFromDeclarationEmit: exportedModulesFromDeclarationEmit
+        };
+        function emitSourceFileOrBundle(_a, sourceFileOrBundle) {
+            var jsFilePath = _a.jsFilePath, sourceMapFilePath = _a.sourceMapFilePath, declarationFilePath = _a.declarationFilePath, declarationMapPath = _a.declarationMapPath, buildInfoPath = _a.buildInfoPath;
+            var buildInfoDirectory;
+            if (buildInfoPath && sourceFileOrBundle && ts.isBundle(sourceFileOrBundle)) {
+                buildInfoDirectory = ts.getDirectoryPath(ts.getNormalizedAbsolutePath(buildInfoPath, host.getCurrentDirectory()));
+                bundleBuildInfo = {
+                    commonSourceDirectory: relativeToBuildInfo(host.getCommonSourceDirectory()),
+                    sourceFiles: sourceFileOrBundle.sourceFiles.map(function (file) { return relativeToBuildInfo(ts.getNormalizedAbsolutePath(file.fileName, host.getCurrentDirectory())); })
+                };
+            }
+            emitJsFileOrBundle(sourceFileOrBundle, jsFilePath, sourceMapFilePath, relativeToBuildInfo);
+            emitDeclarationFileOrBundle(sourceFileOrBundle, declarationFilePath, declarationMapPath, relativeToBuildInfo);
+            emitBuildInfo(bundleBuildInfo, buildInfoPath);
+            if (!emitSkipped && emittedFilesList) {
+                if (!emitOnlyDtsFiles) {
+                    if (jsFilePath) {
+                        emittedFilesList.push(jsFilePath);
+                    }
+                    if (sourceMapFilePath) {
+                        emittedFilesList.push(sourceMapFilePath);
+                    }
+                    if (buildInfoPath) {
+                        emittedFilesList.push(buildInfoPath);
+                    }
+                }
+                if (declarationFilePath) {
+                    emittedFilesList.push(declarationFilePath);
+                }
+                if (declarationMapPath) {
+                    emittedFilesList.push(declarationMapPath);
+                }
+            }
+            function relativeToBuildInfo(path) {
+                return ts.ensurePathIsNonModuleName(ts.getRelativePathFromDirectory(buildInfoDirectory, path, host.getCanonicalFileName));
+            }
+        }
+        function emitBuildInfo(bundle, buildInfoPath) {
+            if (!buildInfoPath || targetSourceFile || emitSkipped)
+                return;
+            var program = host.getProgramBuildInfo();
+            if (host.isEmitBlocked(buildInfoPath) || compilerOptions.noEmit) {
+                emitSkipped = true;
+                return;
+            }
+            var version = ts.version;
+            ts.writeFile(host, emitterDiagnostics, buildInfoPath, getBuildInfoText({ bundle: bundle, program: program, version: version }), false);
+        }
+        function emitJsFileOrBundle(sourceFileOrBundle, jsFilePath, sourceMapFilePath, relativeToBuildInfo) {
+            if (!sourceFileOrBundle || emitOnlyDtsFiles || !jsFilePath) {
+                return;
+            }
+            if ((jsFilePath && host.isEmitBlocked(jsFilePath)) || compilerOptions.noEmit) {
+                emitSkipped = true;
+                return;
+            }
+            var transform = ts.transformNodes(resolver, host, compilerOptions, [sourceFileOrBundle], scriptTransformers, false);
+            var printerOptions = {
+                removeComments: compilerOptions.removeComments,
+                newLine: compilerOptions.newLine,
+                noEmitHelpers: compilerOptions.noEmitHelpers,
+                module: compilerOptions.module,
+                target: compilerOptions.target,
+                sourceMap: compilerOptions.sourceMap,
+                inlineSourceMap: compilerOptions.inlineSourceMap,
+                inlineSources: compilerOptions.inlineSources,
+                extendedDiagnostics: compilerOptions.extendedDiagnostics,
+                writeBundleFileInfo: !!bundleBuildInfo,
+                relativeToBuildInfo: relativeToBuildInfo
+            };
+            var printer = createPrinter(printerOptions, {
+                hasGlobalName: resolver.hasGlobalName,
+                onEmitNode: transform.emitNodeWithNotification,
+                isEmitNotificationEnabled: transform.isEmitNotificationEnabled,
+                substituteNode: transform.substituteNode,
+            });
+            ts.Debug.assert(transform.transformed.length === 1, "Should only see one output from the transform");
+            printSourceFileOrBundle(jsFilePath, sourceMapFilePath, transform.transformed[0], printer, compilerOptions);
+            transform.dispose();
+            if (bundleBuildInfo)
+                bundleBuildInfo.js = printer.bundleFileInfo;
+        }
+        function emitDeclarationFileOrBundle(sourceFileOrBundle, declarationFilePath, declarationMapPath, relativeToBuildInfo) {
+            if (!sourceFileOrBundle)
+                return;
+            if (!declarationFilePath) {
+                if (emitOnlyDtsFiles || compilerOptions.emitDeclarationOnly)
+                    emitSkipped = true;
+                return;
+            }
+            var sourceFiles = ts.isSourceFile(sourceFileOrBundle) ? [sourceFileOrBundle] : sourceFileOrBundle.sourceFiles;
+            var filesForEmit = forceDtsEmit ? sourceFiles : ts.filter(sourceFiles, ts.isSourceFileNotJson);
+            var inputListOrBundle = (compilerOptions.outFile || compilerOptions.out) ? [ts.createBundle(filesForEmit, !ts.isSourceFile(sourceFileOrBundle) ? sourceFileOrBundle.prepends : undefined)] : filesForEmit;
+            if (emitOnlyDtsFiles && !ts.getEmitDeclarations(compilerOptions)) {
+                filesForEmit.forEach(collectLinkedAliases);
+            }
+            var declarationTransform = ts.transformNodes(resolver, host, compilerOptions, inputListOrBundle, declarationTransformers, false);
+            if (ts.length(declarationTransform.diagnostics)) {
+                for (var _a = 0, _b = declarationTransform.diagnostics; _a < _b.length; _a++) {
+                    var diagnostic = _b[_a];
+                    emitterDiagnostics.add(diagnostic);
+                }
+            }
+            var printerOptions = {
+                removeComments: compilerOptions.removeComments,
+                newLine: compilerOptions.newLine,
+                noEmitHelpers: true,
+                module: compilerOptions.module,
+                target: compilerOptions.target,
+                sourceMap: compilerOptions.sourceMap,
+                inlineSourceMap: compilerOptions.inlineSourceMap,
+                extendedDiagnostics: compilerOptions.extendedDiagnostics,
+                onlyPrintJsDocStyle: true,
+                writeBundleFileInfo: !!bundleBuildInfo,
+                recordInternalSection: !!bundleBuildInfo,
+                relativeToBuildInfo: relativeToBuildInfo
+            };
+            var declarationPrinter = createPrinter(printerOptions, {
+                hasGlobalName: resolver.hasGlobalName,
+                onEmitNode: declarationTransform.emitNodeWithNotification,
+                isEmitNotificationEnabled: declarationTransform.isEmitNotificationEnabled,
+                substituteNode: declarationTransform.substituteNode,
+            });
+            var declBlocked = (!!declarationTransform.diagnostics && !!declarationTransform.diagnostics.length) || !!host.isEmitBlocked(declarationFilePath) || !!compilerOptions.noEmit;
+            emitSkipped = emitSkipped || declBlocked;
+            if (!declBlocked || forceDtsEmit) {
+                ts.Debug.assert(declarationTransform.transformed.length === 1, "Should only see one output from the decl transform");
+                printSourceFileOrBundle(declarationFilePath, declarationMapPath, declarationTransform.transformed[0], declarationPrinter, {
+                    sourceMap: compilerOptions.declarationMap,
+                    sourceRoot: compilerOptions.sourceRoot,
+                    mapRoot: compilerOptions.mapRoot,
+                    extendedDiagnostics: compilerOptions.extendedDiagnostics,
+                });
+                if (forceDtsEmit && declarationTransform.transformed[0].kind === 290) {
+                    var sourceFile = declarationTransform.transformed[0];
+                    exportedModulesFromDeclarationEmit = sourceFile.exportedModulesFromDeclarationEmit;
+                }
+            }
+            declarationTransform.dispose();
+            if (bundleBuildInfo)
+                bundleBuildInfo.dts = declarationPrinter.bundleFileInfo;
+        }
+        function collectLinkedAliases(node) {
+            if (ts.isExportAssignment(node)) {
+                if (node.expression.kind === 75) {
+                    resolver.collectLinkedAliases(node.expression, true);
+                }
+                return;
+            }
+            else if (ts.isExportSpecifier(node)) {
+                resolver.collectLinkedAliases(node.propertyName || node.name, true);
+                return;
+            }
+            ts.forEachChild(node, collectLinkedAliases);
+        }
+        function printSourceFileOrBundle(jsFilePath, sourceMapFilePath, sourceFileOrBundle, printer, mapOptions) {
+            var bundle = sourceFileOrBundle.kind === 291 ? sourceFileOrBundle : undefined;
+            var sourceFile = sourceFileOrBundle.kind === 290 ? sourceFileOrBundle : undefined;
+            var sourceFiles = bundle ? bundle.sourceFiles : [sourceFile];
+            var sourceMapGenerator;
+            if (shouldEmitSourceMaps(mapOptions, sourceFileOrBundle)) {
+                sourceMapGenerator = ts.createSourceMapGenerator(host, ts.getBaseFileName(ts.normalizeSlashes(jsFilePath)), getSourceRoot(mapOptions), getSourceMapDirectory(mapOptions, jsFilePath, sourceFile), mapOptions);
+            }
+            if (bundle) {
+                printer.writeBundle(bundle, writer, sourceMapGenerator);
+            }
+            else {
+                printer.writeFile(sourceFile, writer, sourceMapGenerator);
+            }
+            if (sourceMapGenerator) {
+                if (sourceMapDataList) {
+                    sourceMapDataList.push({
+                        inputSourceFileNames: sourceMapGenerator.getSources(),
+                        sourceMap: sourceMapGenerator.toJSON()
+                    });
+                }
+                var sourceMappingURL = getSourceMappingURL(mapOptions, sourceMapGenerator, jsFilePath, sourceMapFilePath, sourceFile);
+                if (sourceMappingURL) {
+                    if (!writer.isAtStartOfLine())
+                        writer.rawWrite(newLine);
+                    writer.writeComment("//# " + "sourceMappingURL" + "=" + sourceMappingURL);
+                }
+                if (sourceMapFilePath) {
+                    var sourceMap = sourceMapGenerator.toString();
+                    ts.writeFile(host, emitterDiagnostics, sourceMapFilePath, sourceMap, false, sourceFiles);
+                }
+            }
+            else {
+                writer.writeLine();
+            }
+            ts.writeFile(host, emitterDiagnostics, jsFilePath, writer.getText(), !!compilerOptions.emitBOM, sourceFiles);
+            writer.clear();
+        }
+        function shouldEmitSourceMaps(mapOptions, sourceFileOrBundle) {
+            return (mapOptions.sourceMap || mapOptions.inlineSourceMap)
+                && (sourceFileOrBundle.kind !== 290 || !ts.fileExtensionIs(sourceFileOrBundle.fileName, ".json"));
+        }
+        function getSourceRoot(mapOptions) {
+            var sourceRoot = ts.normalizeSlashes(mapOptions.sourceRoot || "");
+            return sourceRoot ? ts.ensureTrailingDirectorySeparator(sourceRoot) : sourceRoot;
+        }
+        function getSourceMapDirectory(mapOptions, filePath, sourceFile) {
+            if (mapOptions.sourceRoot)
+                return host.getCommonSourceDirectory();
+            if (mapOptions.mapRoot) {
+                var sourceMapDir = ts.normalizeSlashes(mapOptions.mapRoot);
+                if (sourceFile) {
+                    sourceMapDir = ts.getDirectoryPath(ts.getSourceFilePathInNewDir(sourceFile.fileName, host, sourceMapDir));
+                }
+                if (ts.getRootLength(sourceMapDir) === 0) {
+                    sourceMapDir = ts.combinePaths(host.getCommonSourceDirectory(), sourceMapDir);
+                }
+                return sourceMapDir;
+            }
+            return ts.getDirectoryPath(ts.normalizePath(filePath));
+        }
+        function getSourceMappingURL(mapOptions, sourceMapGenerator, filePath, sourceMapFilePath, sourceFile) {
+            if (mapOptions.inlineSourceMap) {
+                var sourceMapText = sourceMapGenerator.toString();
+                var base64SourceMapText = ts.base64encode(ts.sys, sourceMapText);
+                return "data:application/json;base64," + base64SourceMapText;
+            }
+            var sourceMapFile = ts.getBaseFileName(ts.normalizeSlashes(ts.Debug.checkDefined(sourceMapFilePath)));
+            if (mapOptions.mapRoot) {
+                var sourceMapDir = ts.normalizeSlashes(mapOptions.mapRoot);
+                if (sourceFile) {
+                    sourceMapDir = ts.getDirectoryPath(ts.getSourceFilePathInNewDir(sourceFile.fileName, host, sourceMapDir));
+                }
+                if (ts.getRootLength(sourceMapDir) === 0) {
+                    sourceMapDir = ts.combinePaths(host.getCommonSourceDirectory(), sourceMapDir);
+                    return ts.getRelativePathToDirectoryOrUrl(ts.getDirectoryPath(ts.normalizePath(filePath)), ts.combinePaths(sourceMapDir, sourceMapFile), host.getCurrentDirectory(), host.getCanonicalFileName, true);
+                }
+                else {
+                    return ts.combinePaths(sourceMapDir, sourceMapFile);
+                }
+            }
+            return sourceMapFile;
+        }
+    }
+    ts.emitFiles = emitFiles;
+    function getBuildInfoText(buildInfo) {
+        return JSON.stringify(buildInfo, undefined, 2);
+    }
+    ts.getBuildInfoText = getBuildInfoText;
+    function getBuildInfo(buildInfoText) {
+        return JSON.parse(buildInfoText);
+    }
+    ts.getBuildInfo = getBuildInfo;
+    ts.notImplementedResolver = {
+        hasGlobalName: ts.notImplemented,
+        getReferencedExportContainer: ts.notImplemented,
+        getReferencedImportDeclaration: ts.notImplemented,
+        getReferencedDeclarationWithCollidingName: ts.notImplemented,
+        isDeclarationWithCollidingName: ts.notImplemented,
+        isValueAliasDeclaration: ts.notImplemented,
+        isReferencedAliasDeclaration: ts.notImplemented,
+        isTopLevelValueImportEqualsWithEntityName: ts.notImplemented,
+        getNodeCheckFlags: ts.notImplemented,
+        isDeclarationVisible: ts.notImplemented,
+        isLateBound: function (_node) { return false; },
+        collectLinkedAliases: ts.notImplemented,
+        isImplementationOfOverload: ts.notImplemented,
+        isRequiredInitializedParameter: ts.notImplemented,
+        isOptionalUninitializedParameterProperty: ts.notImplemented,
+        isExpandoFunctionDeclaration: ts.notImplemented,
+        getPropertiesOfContainerFunction: ts.notImplemented,
+        createTypeOfDeclaration: ts.notImplemented,
+        createReturnTypeOfSignatureDeclaration: ts.notImplemented,
+        createTypeOfExpression: ts.notImplemented,
+        createLiteralConstValue: ts.notImplemented,
+        isSymbolAccessible: ts.notImplemented,
+        isEntityNameVisible: ts.notImplemented,
+        getConstantValue: ts.notImplemented,
+        getReferencedValueDeclaration: ts.notImplemented,
+        getTypeReferenceSerializationKind: ts.notImplemented,
+        isOptionalParameter: ts.notImplemented,
+        moduleExportsSomeValue: ts.notImplemented,
+        isArgumentsLocalBinding: ts.notImplemented,
+        getExternalModuleFileFromDeclaration: ts.notImplemented,
+        getTypeReferenceDirectivesForEntityName: ts.notImplemented,
+        getTypeReferenceDirectivesForSymbol: ts.notImplemented,
+        isLiteralConstDeclaration: ts.notImplemented,
+        getJsxFactoryEntity: ts.notImplemented,
+        getAllAccessorDeclarations: ts.notImplemented,
+        getSymbolOfExternalModuleSpecifier: ts.notImplemented,
+        isBindingCapturedByNode: ts.notImplemented,
+        getDeclarationStatementsForSourceFile: ts.notImplemented,
+        isImportRequiredByAugmentation: ts.notImplemented,
+    };
+    function createSourceFilesFromBundleBuildInfo(bundle, buildInfoDirectory, host) {
+        var sourceFiles = bundle.sourceFiles.map(function (fileName) {
+            var sourceFile = ts.createNode(290, 0, 0);
+            sourceFile.fileName = ts.getRelativePathFromDirectory(host.getCurrentDirectory(), ts.getNormalizedAbsolutePath(fileName, buildInfoDirectory), !host.useCaseSensitiveFileNames());
+            sourceFile.text = "";
+            sourceFile.statements = ts.createNodeArray();
+            return sourceFile;
+        });
+        var jsBundle = ts.Debug.checkDefined(bundle.js);
+        ts.forEach(jsBundle.sources && jsBundle.sources.prologues, function (prologueInfo) {
+            var sourceFile = sourceFiles[prologueInfo.file];
+            sourceFile.text = prologueInfo.text;
+            sourceFile.end = prologueInfo.text.length;
+            sourceFile.statements = ts.createNodeArray(prologueInfo.directives.map(function (directive) {
+                var statement = ts.createNode(226, directive.pos, directive.end);
+                statement.expression = ts.createNode(10, directive.expression.pos, directive.expression.end);
+                statement.expression.text = directive.expression.text;
+                return statement;
+            }));
+        });
+        return sourceFiles;
+    }
+    function emitUsingBuildInfo(config, host, getCommandLine, customTransformers) {
+        var _a = getOutputPathsForBundle(config.options, false), buildInfoPath = _a.buildInfoPath, jsFilePath = _a.jsFilePath, sourceMapFilePath = _a.sourceMapFilePath, declarationFilePath = _a.declarationFilePath, declarationMapPath = _a.declarationMapPath;
+        var buildInfoText = host.readFile(ts.Debug.checkDefined(buildInfoPath));
+        if (!buildInfoText)
+            return buildInfoPath;
+        var jsFileText = host.readFile(ts.Debug.checkDefined(jsFilePath));
+        if (!jsFileText)
+            return jsFilePath;
+        var sourceMapText = sourceMapFilePath && host.readFile(sourceMapFilePath);
+        if ((sourceMapFilePath && !sourceMapText) || config.options.inlineSourceMap)
+            return sourceMapFilePath || "inline sourcemap decoding";
+        var declarationText = declarationFilePath && host.readFile(declarationFilePath);
+        if (declarationFilePath && !declarationText)
+            return declarationFilePath;
+        var declarationMapText = declarationMapPath && host.readFile(declarationMapPath);
+        if ((declarationMapPath && !declarationMapText) || config.options.inlineSourceMap)
+            return declarationMapPath || "inline sourcemap decoding";
+        var buildInfo = getBuildInfo(buildInfoText);
+        if (!buildInfo.bundle || !buildInfo.bundle.js || (declarationText && !buildInfo.bundle.dts))
+            return buildInfoPath;
+        var buildInfoDirectory = ts.getDirectoryPath(ts.getNormalizedAbsolutePath(buildInfoPath, host.getCurrentDirectory()));
+        var ownPrependInput = ts.createInputFiles(jsFileText, declarationText, sourceMapFilePath, sourceMapText, declarationMapPath, declarationMapText, jsFilePath, declarationFilePath, buildInfoPath, buildInfo, true);
+        var outputFiles = [];
+        var prependNodes = ts.createPrependNodes(config.projectReferences, getCommandLine, function (f) { return host.readFile(f); });
+        var sourceFilesForJsEmit = createSourceFilesFromBundleBuildInfo(buildInfo.bundle, buildInfoDirectory, host);
+        var emitHost = {
+            getPrependNodes: ts.memoize(function () { return __spreadArrays(prependNodes, [ownPrependInput]); }),
+            getCanonicalFileName: host.getCanonicalFileName,
+            getCommonSourceDirectory: function () { return ts.getNormalizedAbsolutePath(buildInfo.bundle.commonSourceDirectory, buildInfoDirectory); },
+            getCompilerOptions: function () { return config.options; },
+            getCurrentDirectory: function () { return host.getCurrentDirectory(); },
+            getNewLine: function () { return host.getNewLine(); },
+            getSourceFile: ts.returnUndefined,
+            getSourceFileByPath: ts.returnUndefined,
+            getSourceFiles: function () { return sourceFilesForJsEmit; },
+            getLibFileFromReference: ts.notImplemented,
+            isSourceFileFromExternalLibrary: ts.returnFalse,
+            getResolvedProjectReferenceToRedirect: ts.returnUndefined,
+            getProjectReferenceRedirect: ts.returnUndefined,
+            isSourceOfProjectReferenceRedirect: ts.returnFalse,
+            writeFile: function (name, text, writeByteOrderMark) {
+                switch (name) {
+                    case jsFilePath:
+                        if (jsFileText === text)
+                            return;
+                        break;
+                    case sourceMapFilePath:
+                        if (sourceMapText === text)
+                            return;
+                        break;
+                    case buildInfoPath:
+                        var newBuildInfo = getBuildInfo(text);
+                        newBuildInfo.program = buildInfo.program;
+                        var _a = buildInfo.bundle, js = _a.js, dts = _a.dts, sourceFiles = _a.sourceFiles;
+                        newBuildInfo.bundle.js.sources = js.sources;
+                        if (dts) {
+                            newBuildInfo.bundle.dts.sources = dts.sources;
+                        }
+                        newBuildInfo.bundle.sourceFiles = sourceFiles;
+                        outputFiles.push({ name: name, text: getBuildInfoText(newBuildInfo), writeByteOrderMark: writeByteOrderMark });
+                        return;
+                    case declarationFilePath:
+                        if (declarationText === text)
+                            return;
+                        break;
+                    case declarationMapPath:
+                        if (declarationMapText === text)
+                            return;
+                        break;
+                    default:
+                        ts.Debug.fail("Unexpected path: " + name);
+                }
+                outputFiles.push({ name: name, text: text, writeByteOrderMark: writeByteOrderMark });
+            },
+            isEmitBlocked: ts.returnFalse,
+            readFile: function (f) { return host.readFile(f); },
+            fileExists: function (f) { return host.fileExists(f); },
+            useCaseSensitiveFileNames: function () { return host.useCaseSensitiveFileNames(); },
+            getProgramBuildInfo: ts.returnUndefined,
+            getSourceFileFromReference: ts.returnUndefined,
+            redirectTargetsMap: ts.createMultiMap()
+        };
+        emitFiles(ts.notImplementedResolver, emitHost, undefined, ts.getTransformers(config.options, customTransformers));
+        return outputFiles;
+    }
+    ts.emitUsingBuildInfo = emitUsingBuildInfo;
+    function createPrinter(printerOptions, handlers) {
+        if (printerOptions === void 0) { printerOptions = {}; }
+        if (handlers === void 0) { handlers = {}; }
+        var hasGlobalName = handlers.hasGlobalName, _a = handlers.onEmitNode, onEmitNode = _a === void 0 ? ts.noEmitNotification : _a, isEmitNotificationEnabled = handlers.isEmitNotificationEnabled, _b = handlers.substituteNode, substituteNode = _b === void 0 ? ts.noEmitSubstitution : _b, onBeforeEmitNodeArray = handlers.onBeforeEmitNodeArray, onAfterEmitNodeArray = handlers.onAfterEmitNodeArray, onBeforeEmitToken = handlers.onBeforeEmitToken, onAfterEmitToken = handlers.onAfterEmitToken;
+        var extendedDiagnostics = !!printerOptions.extendedDiagnostics;
+        var newLine = ts.getNewLineCharacter(printerOptions);
+        var moduleKind = ts.getEmitModuleKind(printerOptions);
+        var bundledHelpers = ts.createMap();
+        var currentSourceFile;
+        var nodeIdToGeneratedName;
+        var autoGeneratedIdToGeneratedName;
+        var generatedNames;
+        var tempFlagsStack;
+        var tempFlags;
+        var reservedNamesStack;
+        var reservedNames;
+        var preserveSourceNewlines = printerOptions.preserveSourceNewlines;
+        var writer;
+        var ownWriter;
+        var write = writeBase;
+        var isOwnFileEmit;
+        var bundleFileInfo = printerOptions.writeBundleFileInfo ? { sections: [] } : undefined;
+        var relativeToBuildInfo = bundleFileInfo ? ts.Debug.checkDefined(printerOptions.relativeToBuildInfo) : undefined;
+        var recordInternalSection = printerOptions.recordInternalSection;
+        var sourceFileTextPos = 0;
+        var sourceFileTextKind = "text";
+        var sourceMapsDisabled = true;
+        var sourceMapGenerator;
+        var sourceMapSource;
+        var sourceMapSourceIndex = -1;
+        var containerPos = -1;
+        var containerEnd = -1;
+        var declarationListContainerEnd = -1;
+        var currentLineMap;
+        var detachedCommentsInfo;
+        var hasWrittenComment = false;
+        var commentsDisabled = !!printerOptions.removeComments;
+        var lastNode;
+        var lastSubstitution;
+        var _c = ts.performance.createTimerIf(extendedDiagnostics, "commentTime", "beforeComment", "afterComment"), enterComment = _c.enter, exitComment = _c.exit;
+        reset();
+        return {
+            printNode: printNode,
+            printList: printList,
+            printFile: printFile,
+            printBundle: printBundle,
+            writeNode: writeNode,
+            writeList: writeList,
+            writeFile: writeFile,
+            writeBundle: writeBundle,
+            bundleFileInfo: bundleFileInfo
+        };
+        function printNode(hint, node, sourceFile) {
+            switch (hint) {
+                case 0:
+                    ts.Debug.assert(ts.isSourceFile(node), "Expected a SourceFile node.");
+                    break;
+                case 2:
+                    ts.Debug.assert(ts.isIdentifier(node), "Expected an Identifier node.");
+                    break;
+                case 1:
+                    ts.Debug.assert(ts.isExpression(node), "Expected an Expression node.");
+                    break;
+            }
+            switch (node.kind) {
+                case 290: return printFile(node);
+                case 291: return printBundle(node);
+                case 292: return printUnparsedSource(node);
+            }
+            writeNode(hint, node, sourceFile, beginPrint());
+            return endPrint();
+        }
+        function printList(format, nodes, sourceFile) {
+            writeList(format, nodes, sourceFile, beginPrint());
+            return endPrint();
+        }
+        function printBundle(bundle) {
+            writeBundle(bundle, beginPrint(), undefined);
+            return endPrint();
+        }
+        function printFile(sourceFile) {
+            writeFile(sourceFile, beginPrint(), undefined);
+            return endPrint();
+        }
+        function printUnparsedSource(unparsed) {
+            writeUnparsedSource(unparsed, beginPrint());
+            return endPrint();
+        }
+        function writeNode(hint, node, sourceFile, output) {
+            var previousWriter = writer;
+            setWriter(output, undefined);
+            print(hint, node, sourceFile);
+            reset();
+            writer = previousWriter;
+        }
+        function writeList(format, nodes, sourceFile, output) {
+            var previousWriter = writer;
+            setWriter(output, undefined);
+            if (sourceFile) {
+                setSourceFile(sourceFile);
+            }
+            emitList(syntheticParent, nodes, format);
+            reset();
+            writer = previousWriter;
+        }
+        function getTextPosWithWriteLine() {
+            return writer.getTextPosWithWriteLine ? writer.getTextPosWithWriteLine() : writer.getTextPos();
+        }
+        function updateOrPushBundleFileTextLike(pos, end, kind) {
+            var last = ts.lastOrUndefined(bundleFileInfo.sections);
+            if (last && last.kind === kind) {
+                last.end = end;
+            }
+            else {
+                bundleFileInfo.sections.push({ pos: pos, end: end, kind: kind });
+            }
+        }
+        function recordBundleFileInternalSectionStart(node) {
+            if (recordInternalSection &&
+                bundleFileInfo &&
+                currentSourceFile &&
+                (ts.isDeclaration(node) || ts.isVariableStatement(node)) &&
+                ts.isInternalDeclaration(node, currentSourceFile) &&
+                sourceFileTextKind !== "internal") {
+                var prevSourceFileTextKind = sourceFileTextKind;
+                recordBundleFileTextLikeSection(writer.getTextPos());
+                sourceFileTextPos = getTextPosWithWriteLine();
+                sourceFileTextKind = "internal";
+                return prevSourceFileTextKind;
+            }
+            return undefined;
+        }
+        function recordBundleFileInternalSectionEnd(prevSourceFileTextKind) {
+            if (prevSourceFileTextKind) {
+                recordBundleFileTextLikeSection(writer.getTextPos());
+                sourceFileTextPos = getTextPosWithWriteLine();
+                sourceFileTextKind = prevSourceFileTextKind;
+            }
+        }
+        function recordBundleFileTextLikeSection(end) {
+            if (sourceFileTextPos < end) {
+                updateOrPushBundleFileTextLike(sourceFileTextPos, end, sourceFileTextKind);
+                return true;
+            }
+            return false;
+        }
+        function writeBundle(bundle, output, sourceMapGenerator) {
+            var _a;
+            isOwnFileEmit = false;
+            var previousWriter = writer;
+            setWriter(output, sourceMapGenerator);
+            emitShebangIfNeeded(bundle);
+            emitPrologueDirectivesIfNeeded(bundle);
+            emitHelpers(bundle);
+            emitSyntheticTripleSlashReferencesIfNeeded(bundle);
+            for (var _b = 0, _c = bundle.prepends; _b < _c.length; _b++) {
+                var prepend = _c[_b];
+                writeLine();
+                var pos = writer.getTextPos();
+                var savedSections = bundleFileInfo && bundleFileInfo.sections;
+                if (savedSections)
+                    bundleFileInfo.sections = [];
+                print(4, prepend, undefined);
+                if (bundleFileInfo) {
+                    var newSections = bundleFileInfo.sections;
+                    bundleFileInfo.sections = savedSections;
+                    if (prepend.oldFileOfCurrentEmit)
+                        (_a = bundleFileInfo.sections).push.apply(_a, newSections);
+                    else {
+                        newSections.forEach(function (section) { return ts.Debug.assert(ts.isBundleFileTextLike(section)); });
+                        bundleFileInfo.sections.push({
+                            pos: pos,
+                            end: writer.getTextPos(),
+                            kind: "prepend",
+                            data: relativeToBuildInfo(prepend.fileName),
+                            texts: newSections
+                        });
+                    }
+                }
+            }
+            sourceFileTextPos = getTextPosWithWriteLine();
+            for (var _d = 0, _e = bundle.sourceFiles; _d < _e.length; _d++) {
+                var sourceFile = _e[_d];
+                print(0, sourceFile, sourceFile);
+            }
+            if (bundleFileInfo && bundle.sourceFiles.length) {
+                var end = writer.getTextPos();
+                if (recordBundleFileTextLikeSection(end)) {
+                    var prologues = getPrologueDirectivesFromBundledSourceFiles(bundle);
+                    if (prologues) {
+                        if (!bundleFileInfo.sources)
+                            bundleFileInfo.sources = {};
+                        bundleFileInfo.sources.prologues = prologues;
+                    }
+                    var helpers = getHelpersFromBundledSourceFiles(bundle);
+                    if (helpers) {
+                        if (!bundleFileInfo.sources)
+                            bundleFileInfo.sources = {};
+                        bundleFileInfo.sources.helpers = helpers;
+                    }
+                }
+            }
+            reset();
+            writer = previousWriter;
+        }
+        function writeUnparsedSource(unparsed, output) {
+            var previousWriter = writer;
+            setWriter(output, undefined);
+            print(4, unparsed, undefined);
+            reset();
+            writer = previousWriter;
+        }
+        function writeFile(sourceFile, output, sourceMapGenerator) {
+            isOwnFileEmit = true;
+            var previousWriter = writer;
+            setWriter(output, sourceMapGenerator);
+            emitShebangIfNeeded(sourceFile);
+            emitPrologueDirectivesIfNeeded(sourceFile);
+            print(0, sourceFile, sourceFile);
+            reset();
+            writer = previousWriter;
+        }
+        function beginPrint() {
+            return ownWriter || (ownWriter = ts.createTextWriter(newLine));
+        }
+        function endPrint() {
+            var text = ownWriter.getText();
+            ownWriter.clear();
+            return text;
+        }
+        function print(hint, node, sourceFile) {
+            if (sourceFile) {
+                setSourceFile(sourceFile);
+            }
+            pipelineEmit(hint, node);
+        }
+        function setSourceFile(sourceFile) {
+            currentSourceFile = sourceFile;
+            currentLineMap = undefined;
+            detachedCommentsInfo = undefined;
+            if (sourceFile) {
+                setSourceMapSource(sourceFile);
+            }
+        }
+        function setWriter(_writer, _sourceMapGenerator) {
+            if (_writer && printerOptions.omitTrailingSemicolon) {
+                _writer = ts.getTrailingSemicolonDeferringWriter(_writer);
+            }
+            writer = _writer;
+            sourceMapGenerator = _sourceMapGenerator;
+            sourceMapsDisabled = !writer || !sourceMapGenerator;
+        }
+        function reset() {
+            nodeIdToGeneratedName = [];
+            autoGeneratedIdToGeneratedName = [];
+            generatedNames = ts.createMap();
+            tempFlagsStack = [];
+            tempFlags = 0;
+            reservedNamesStack = [];
+            currentSourceFile = undefined;
+            currentLineMap = undefined;
+            detachedCommentsInfo = undefined;
+            lastNode = undefined;
+            lastSubstitution = undefined;
+            setWriter(undefined, undefined);
+        }
+        function getCurrentLineMap() {
+            return currentLineMap || (currentLineMap = ts.getLineStarts(currentSourceFile));
+        }
+        function emit(node) {
+            if (node === undefined)
+                return;
+            var prevSourceFileTextKind = recordBundleFileInternalSectionStart(node);
+            var substitute = pipelineEmit(4, node);
+            recordBundleFileInternalSectionEnd(prevSourceFileTextKind);
+            return substitute;
+        }
+        function emitIdentifierName(node) {
+            if (node === undefined)
+                return;
+            return pipelineEmit(2, node);
+        }
+        function emitExpression(node) {
+            if (node === undefined)
+                return;
+            return pipelineEmit(1, node);
+        }
+        function emitJsxAttributeValue(node) {
+            return pipelineEmit(ts.isStringLiteral(node) ? 6 : 4, node);
+        }
+        function pipelineEmit(emitHint, node) {
+            var savedLastNode = lastNode;
+            var savedLastSubstitution = lastSubstitution;
+            var savedPreserveSourceNewlines = preserveSourceNewlines;
+            lastNode = node;
+            lastSubstitution = undefined;
+            if (preserveSourceNewlines && !!(ts.getEmitFlags(node) & 134217728)) {
+                preserveSourceNewlines = false;
+            }
+            var pipelinePhase = getPipelinePhase(0, emitHint, node);
+            pipelinePhase(emitHint, node);
+            ts.Debug.assert(lastNode === node);
+            var substitute = lastSubstitution;
+            lastNode = savedLastNode;
+            lastSubstitution = savedLastSubstitution;
+            preserveSourceNewlines = savedPreserveSourceNewlines;
+            return substitute || node;
+        }
+        function getPipelinePhase(phase, emitHint, node) {
+            switch (phase) {
+                case 0:
+                    if (onEmitNode !== ts.noEmitNotification && (!isEmitNotificationEnabled || isEmitNotificationEnabled(node))) {
+                        return pipelineEmitWithNotification;
+                    }
+                case 1:
+                    if (substituteNode !== ts.noEmitSubstitution && (lastSubstitution = substituteNode(emitHint, node)) !== node) {
+                        return pipelineEmitWithSubstitution;
+                    }
+                case 2:
+                    if (!commentsDisabled && node.kind !== 290) {
+                        return pipelineEmitWithComments;
+                    }
+                case 3:
+                    if (!sourceMapsDisabled && node.kind !== 290 && !ts.isInJsonFile(node)) {
+                        return pipelineEmitWithSourceMap;
+                    }
+                case 4:
+                    return pipelineEmitWithHint;
+                default:
+                    return ts.Debug.assertNever(phase);
+            }
+        }
+        function getNextPipelinePhase(currentPhase, emitHint, node) {
+            return getPipelinePhase(currentPhase + 1, emitHint, node);
+        }
+        function pipelineEmitWithNotification(hint, node) {
+            ts.Debug.assert(lastNode === node);
+            var pipelinePhase = getNextPipelinePhase(0, hint, node);
+            onEmitNode(hint, node, pipelinePhase);
+            ts.Debug.assert(lastNode === node);
+        }
+        function pipelineEmitWithHint(hint, node) {
+            ts.Debug.assert(lastNode === node || lastSubstitution === node);
+            if (hint === 0)
+                return emitSourceFile(ts.cast(node, ts.isSourceFile));
+            if (hint === 2)
+                return emitIdentifier(ts.cast(node, ts.isIdentifier));
+            if (hint === 6)
+                return emitLiteral(ts.cast(node, ts.isStringLiteral), true);
+            if (hint === 3)
+                return emitMappedTypeParameter(ts.cast(node, ts.isTypeParameterDeclaration));
+            if (hint === 5) {
+                ts.Debug.assertNode(node, ts.isEmptyStatement);
+                return emitEmptyStatement(true);
+            }
+            if (hint === 4) {
+                if (ts.isKeyword(node.kind))
+                    return writeTokenNode(node, writeKeyword);
+                switch (node.kind) {
+                    case 15:
+                    case 16:
+                    case 17:
+                        return emitLiteral(node, false);
+                    case 292:
+                    case 286:
+                        return emitUnparsedSourceOrPrepend(node);
+                    case 285:
+                        return writeUnparsedNode(node);
+                    case 287:
+                    case 288:
+                        return emitUnparsedTextLike(node);
+                    case 289:
+                        return emitUnparsedSyntheticReference(node);
+                    case 75:
+                        return emitIdentifier(node);
+                    case 76:
+                        return emitPrivateIdentifier(node);
+                    case 153:
+                        return emitQualifiedName(node);
+                    case 154:
+                        return emitComputedPropertyName(node);
+                    case 155:
+                        return emitTypeParameter(node);
+                    case 156:
+                        return emitParameter(node);
+                    case 157:
+                        return emitDecorator(node);
+                    case 158:
+                        return emitPropertySignature(node);
+                    case 159:
+                        return emitPropertyDeclaration(node);
+                    case 160:
+                        return emitMethodSignature(node);
+                    case 161:
+                        return emitMethodDeclaration(node);
+                    case 162:
+                        return emitConstructor(node);
+                    case 163:
+                    case 164:
+                        return emitAccessorDeclaration(node);
+                    case 165:
+                        return emitCallSignature(node);
+                    case 166:
+                        return emitConstructSignature(node);
+                    case 167:
+                        return emitIndexSignature(node);
+                    case 168:
+                        return emitTypePredicate(node);
+                    case 169:
+                        return emitTypeReference(node);
+                    case 170:
+                        return emitFunctionType(node);
+                    case 300:
+                        return emitJSDocFunctionType(node);
+                    case 171:
+                        return emitConstructorType(node);
+                    case 172:
+                        return emitTypeQuery(node);
+                    case 173:
+                        return emitTypeLiteral(node);
+                    case 174:
+                        return emitArrayType(node);
+                    case 175:
+                        return emitTupleType(node);
+                    case 176:
+                        return emitOptionalType(node);
+                    case 178:
+                        return emitUnionType(node);
+                    case 179:
+                        return emitIntersectionType(node);
+                    case 180:
+                        return emitConditionalType(node);
+                    case 181:
+                        return emitInferType(node);
+                    case 182:
+                        return emitParenthesizedType(node);
+                    case 216:
+                        return emitExpressionWithTypeArguments(node);
+                    case 183:
+                        return emitThisType();
+                    case 184:
+                        return emitTypeOperator(node);
+                    case 185:
+                        return emitIndexedAccessType(node);
+                    case 186:
+                        return emitMappedType(node);
+                    case 187:
+                        return emitLiteralType(node);
+                    case 188:
+                        return emitImportTypeNode(node);
+                    case 295:
+                        writePunctuation("*");
+                        return;
+                    case 296:
+                        writePunctuation("?");
+                        return;
+                    case 297:
+                        return emitJSDocNullableType(node);
+                    case 298:
+                        return emitJSDocNonNullableType(node);
+                    case 299:
+                        return emitJSDocOptionalType(node);
+                    case 177:
+                    case 301:
+                        return emitRestOrJSDocVariadicType(node);
+                    case 189:
+                        return emitObjectBindingPattern(node);
+                    case 190:
+                        return emitArrayBindingPattern(node);
+                    case 191:
+                        return emitBindingElement(node);
+                    case 221:
+                        return emitTemplateSpan(node);
+                    case 222:
+                        return emitSemicolonClassElement();
+                    case 223:
+                        return emitBlock(node);
+                    case 225:
+                        return emitVariableStatement(node);
+                    case 224:
+                        return emitEmptyStatement(false);
+                    case 226:
+                        return emitExpressionStatement(node);
+                    case 227:
+                        return emitIfStatement(node);
+                    case 228:
+                        return emitDoStatement(node);
+                    case 229:
+                        return emitWhileStatement(node);
+                    case 230:
+                        return emitForStatement(node);
+                    case 231:
+                        return emitForInStatement(node);
+                    case 232:
+                        return emitForOfStatement(node);
+                    case 233:
+                        return emitContinueStatement(node);
+                    case 234:
+                        return emitBreakStatement(node);
+                    case 235:
+                        return emitReturnStatement(node);
+                    case 236:
+                        return emitWithStatement(node);
+                    case 237:
+                        return emitSwitchStatement(node);
+                    case 238:
+                        return emitLabeledStatement(node);
+                    case 239:
+                        return emitThrowStatement(node);
+                    case 240:
+                        return emitTryStatement(node);
+                    case 241:
+                        return emitDebuggerStatement(node);
+                    case 242:
+                        return emitVariableDeclaration(node);
+                    case 243:
+                        return emitVariableDeclarationList(node);
+                    case 244:
+                        return emitFunctionDeclaration(node);
+                    case 245:
+                        return emitClassDeclaration(node);
+                    case 246:
+                        return emitInterfaceDeclaration(node);
+                    case 247:
+                        return emitTypeAliasDeclaration(node);
+                    case 248:
+                        return emitEnumDeclaration(node);
+                    case 249:
+                        return emitModuleDeclaration(node);
+                    case 250:
+                        return emitModuleBlock(node);
+                    case 251:
+                        return emitCaseBlock(node);
+                    case 252:
+                        return emitNamespaceExportDeclaration(node);
+                    case 253:
+                        return emitImportEqualsDeclaration(node);
+                    case 254:
+                        return emitImportDeclaration(node);
+                    case 255:
+                        return emitImportClause(node);
+                    case 256:
+                        return emitNamespaceImport(node);
+                    case 262:
+                        return emitNamespaceExport(node);
+                    case 257:
+                        return emitNamedImports(node);
+                    case 258:
+                        return emitImportSpecifier(node);
+                    case 259:
+                        return emitExportAssignment(node);
+                    case 260:
+                        return emitExportDeclaration(node);
+                    case 261:
+                        return emitNamedExports(node);
+                    case 263:
+                        return emitExportSpecifier(node);
+                    case 264:
+                        return;
+                    case 265:
+                        return emitExternalModuleReference(node);
+                    case 11:
+                        return emitJsxText(node);
+                    case 268:
+                    case 271:
+                        return emitJsxOpeningElementOrFragment(node);
+                    case 269:
+                    case 272:
+                        return emitJsxClosingElementOrFragment(node);
+                    case 273:
+                        return emitJsxAttribute(node);
+                    case 274:
+                        return emitJsxAttributes(node);
+                    case 275:
+                        return emitJsxSpreadAttribute(node);
+                    case 276:
+                        return emitJsxExpression(node);
+                    case 277:
+                        return emitCaseClause(node);
+                    case 278:
+                        return emitDefaultClause(node);
+                    case 279:
+                        return emitHeritageClause(node);
+                    case 280:
+                        return emitCatchClause(node);
+                    case 281:
+                        return emitPropertyAssignment(node);
+                    case 282:
+                        return emitShorthandPropertyAssignment(node);
+                    case 283:
+                        return emitSpreadAssignment(node);
+                    case 284:
+                        return emitEnumMember(node);
+                    case 317:
+                    case 323:
+                        return emitJSDocPropertyLikeTag(node);
+                    case 318:
+                    case 320:
+                    case 319:
+                    case 316:
+                        return emitJSDocSimpleTypedTag(node);
+                    case 308:
+                    case 307:
+                        return emitJSDocHeritageTag(node);
+                    case 321:
+                        return emitJSDocTemplateTag(node);
+                    case 322:
+                        return emitJSDocTypedefTag(node);
+                    case 315:
+                        return emitJSDocCallbackTag(node);
+                    case 305:
+                        return emitJSDocSignature(node);
+                    case 304:
+                        return emitJSDocTypeLiteral(node);
+                    case 310:
+                    case 306:
+                        return emitJSDocSimpleTag(node);
+                    case 303:
+                        return emitJSDoc(node);
+                }
+                if (ts.isExpression(node)) {
+                    hint = 1;
+                    if (substituteNode !== ts.noEmitSubstitution) {
+                        lastSubstitution = node = substituteNode(hint, node);
+                    }
+                }
+                else if (ts.isToken(node)) {
+                    return writeTokenNode(node, writePunctuation);
+                }
+            }
+            if (hint === 1) {
+                switch (node.kind) {
+                    case 8:
+                    case 9:
+                        return emitNumericOrBigIntLiteral(node);
+                    case 10:
+                    case 13:
+                    case 14:
+                        return emitLiteral(node, false);
+                    case 75:
+                        return emitIdentifier(node);
+                    case 91:
+                    case 100:
+                    case 102:
+                    case 106:
+                    case 104:
+                    case 96:
+                        writeTokenNode(node, writeKeyword);
+                        return;
+                    case 192:
+                        return emitArrayLiteralExpression(node);
+                    case 193:
+                        return emitObjectLiteralExpression(node);
+                    case 194:
+                        return emitPropertyAccessExpression(node);
+                    case 195:
+                        return emitElementAccessExpression(node);
+                    case 196:
+                        return emitCallExpression(node);
+                    case 197:
+                        return emitNewExpression(node);
+                    case 198:
+                        return emitTaggedTemplateExpression(node);
+                    case 199:
+                        return emitTypeAssertionExpression(node);
+                    case 200:
+                        return emitParenthesizedExpression(node);
+                    case 201:
+                        return emitFunctionExpression(node);
+                    case 202:
+                        return emitArrowFunction(node);
+                    case 203:
+                        return emitDeleteExpression(node);
+                    case 204:
+                        return emitTypeOfExpression(node);
+                    case 205:
+                        return emitVoidExpression(node);
+                    case 206:
+                        return emitAwaitExpression(node);
+                    case 207:
+                        return emitPrefixUnaryExpression(node);
+                    case 208:
+                        return emitPostfixUnaryExpression(node);
+                    case 209:
+                        return emitBinaryExpression(node);
+                    case 210:
+                        return emitConditionalExpression(node);
+                    case 211:
+                        return emitTemplateExpression(node);
+                    case 212:
+                        return emitYieldExpression(node);
+                    case 213:
+                        return emitSpreadExpression(node);
+                    case 214:
+                        return emitClassExpression(node);
+                    case 215:
+                        return;
+                    case 217:
+                        return emitAsExpression(node);
+                    case 218:
+                        return emitNonNullExpression(node);
+                    case 219:
+                        return emitMetaProperty(node);
+                    case 266:
+                        return emitJsxElement(node);
+                    case 267:
+                        return emitJsxSelfClosingElement(node);
+                    case 270:
+                        return emitJsxFragment(node);
+                    case 326:
+                        return emitPartiallyEmittedExpression(node);
+                    case 327:
+                        return emitCommaList(node);
+                }
+            }
+        }
+        function emitMappedTypeParameter(node) {
+            emit(node.name);
+            writeSpace();
+            writeKeyword("in");
+            writeSpace();
+            emit(node.constraint);
+        }
+        function pipelineEmitWithSubstitution(hint, node) {
+            ts.Debug.assert(lastNode === node || lastSubstitution === node);
+            var pipelinePhase = getNextPipelinePhase(1, hint, node);
+            pipelinePhase(hint, lastSubstitution);
+            ts.Debug.assert(lastNode === node || lastSubstitution === node);
+        }
+        function getHelpersFromBundledSourceFiles(bundle) {
+            var result;
+            if (moduleKind === ts.ModuleKind.None || printerOptions.noEmitHelpers) {
+                return undefined;
+            }
+            var bundledHelpers = ts.createMap();
+            for (var _a = 0, _b = bundle.sourceFiles; _a < _b.length; _a++) {
+                var sourceFile = _b[_a];
+                var shouldSkip = ts.getExternalHelpersModuleName(sourceFile) !== undefined;
+                var helpers = getSortedEmitHelpers(sourceFile);
+                if (!helpers)
+                    continue;
+                for (var _c = 0, helpers_4 = helpers; _c < helpers_4.length; _c++) {
+                    var helper = helpers_4[_c];
+                    if (!helper.scoped && !shouldSkip && !bundledHelpers.get(helper.name)) {
+                        bundledHelpers.set(helper.name, true);
+                        (result || (result = [])).push(helper.name);
+                    }
+                }
+            }
+            return result;
+        }
+        function emitHelpers(node) {
+            var helpersEmitted = false;
+            var bundle = node.kind === 291 ? node : undefined;
+            if (bundle && moduleKind === ts.ModuleKind.None) {
+                return;
+            }
+            var numPrepends = bundle ? bundle.prepends.length : 0;
+            var numNodes = bundle ? bundle.sourceFiles.length + numPrepends : 1;
+            for (var i = 0; i < numNodes; i++) {
+                var currentNode = bundle ? i < numPrepends ? bundle.prepends[i] : bundle.sourceFiles[i - numPrepends] : node;
+                var sourceFile = ts.isSourceFile(currentNode) ? currentNode : ts.isUnparsedSource(currentNode) ? undefined : currentSourceFile;
+                var shouldSkip = printerOptions.noEmitHelpers || (!!sourceFile && ts.hasRecordedExternalHelpers(sourceFile));
+                var shouldBundle = (ts.isSourceFile(currentNode) || ts.isUnparsedSource(currentNode)) && !isOwnFileEmit;
+                var helpers = ts.isUnparsedSource(currentNode) ? currentNode.helpers : getSortedEmitHelpers(currentNode);
+                if (helpers) {
+                    for (var _a = 0, helpers_5 = helpers; _a < helpers_5.length; _a++) {
+                        var helper = helpers_5[_a];
+                        if (!helper.scoped) {
+                            if (shouldSkip)
+                                continue;
+                            if (shouldBundle) {
+                                if (bundledHelpers.get(helper.name)) {
+                                    continue;
+                                }
+                                bundledHelpers.set(helper.name, true);
+                            }
+                        }
+                        else if (bundle) {
+                            continue;
+                        }
+                        var pos = getTextPosWithWriteLine();
+                        if (typeof helper.text === "string") {
+                            writeLines(helper.text);
+                        }
+                        else {
+                            writeLines(helper.text(makeFileLevelOptimisticUniqueName));
+                        }
+                        if (bundleFileInfo)
+                            bundleFileInfo.sections.push({ pos: pos, end: writer.getTextPos(), kind: "emitHelpers", data: helper.name });
+                        helpersEmitted = true;
+                    }
+                }
+            }
+            return helpersEmitted;
+        }
+        function getSortedEmitHelpers(node) {
+            var helpers = ts.getEmitHelpers(node);
+            return helpers && ts.stableSort(helpers, ts.compareEmitHelpers);
+        }
+        function emitNumericOrBigIntLiteral(node) {
+            emitLiteral(node, false);
+        }
+        function emitLiteral(node, jsxAttributeEscape) {
+            var text = getLiteralTextOfNode(node, printerOptions.neverAsciiEscape, jsxAttributeEscape);
+            if ((printerOptions.sourceMap || printerOptions.inlineSourceMap)
+                && (node.kind === 10 || ts.isTemplateLiteralKind(node.kind))) {
+                writeLiteral(text);
+            }
+            else {
+                writeStringLiteral(text);
+            }
+        }
+        function emitUnparsedSourceOrPrepend(unparsed) {
+            for (var _a = 0, _b = unparsed.texts; _a < _b.length; _a++) {
+                var text = _b[_a];
+                writeLine();
+                emit(text);
+            }
+        }
+        function writeUnparsedNode(unparsed) {
+            writer.rawWrite(unparsed.parent.text.substring(unparsed.pos, unparsed.end));
+        }
+        function emitUnparsedTextLike(unparsed) {
+            var pos = getTextPosWithWriteLine();
+            writeUnparsedNode(unparsed);
+            if (bundleFileInfo) {
+                updateOrPushBundleFileTextLike(pos, writer.getTextPos(), unparsed.kind === 287 ?
+                    "text" :
+                    "internal");
+            }
+        }
+        function emitUnparsedSyntheticReference(unparsed) {
+            var pos = getTextPosWithWriteLine();
+            writeUnparsedNode(unparsed);
+            if (bundleFileInfo) {
+                var section = ts.clone(unparsed.section);
+                section.pos = pos;
+                section.end = writer.getTextPos();
+                bundleFileInfo.sections.push(section);
+            }
+        }
+        function emitIdentifier(node) {
+            var writeText = node.symbol ? writeSymbol : write;
+            writeText(getTextOfNode(node, false), node.symbol);
+            emitList(node, node.typeArguments, 53776);
+        }
+        function emitPrivateIdentifier(node) {
+            var writeText = node.symbol ? writeSymbol : write;
+            writeText(getTextOfNode(node, false), node.symbol);
+        }
+        function emitQualifiedName(node) {
+            emitEntityName(node.left);
+            writePunctuation(".");
+            emit(node.right);
+        }
+        function emitEntityName(node) {
+            if (node.kind === 75) {
+                emitExpression(node);
+            }
+            else {
+                emit(node);
+            }
+        }
+        function emitComputedPropertyName(node) {
+            writePunctuation("[");
+            emitExpression(node.expression);
+            writePunctuation("]");
+        }
+        function emitTypeParameter(node) {
+            emit(node.name);
+            if (node.constraint) {
+                writeSpace();
+                writeKeyword("extends");
+                writeSpace();
+                emit(node.constraint);
+            }
+            if (node.default) {
+                writeSpace();
+                writeOperator("=");
+                writeSpace();
+                emit(node.default);
+            }
+        }
+        function emitParameter(node) {
+            emitDecorators(node, node.decorators);
+            emitModifiers(node, node.modifiers);
+            emit(node.dotDotDotToken);
+            emitNodeWithWriter(node.name, writeParameter);
+            emit(node.questionToken);
+            if (node.parent && node.parent.kind === 300 && !node.name) {
+                emit(node.type);
+            }
+            else {
+                emitTypeAnnotation(node.type);
+            }
+            emitInitializer(node.initializer, node.type ? node.type.end : node.questionToken ? node.questionToken.end : node.name ? node.name.end : node.modifiers ? node.modifiers.end : node.decorators ? node.decorators.end : node.pos, node);
+        }
+        function emitDecorator(decorator) {
+            writePunctuation("@");
+            emitExpression(decorator.expression);
+        }
+        function emitPropertySignature(node) {
+            emitDecorators(node, node.decorators);
+            emitModifiers(node, node.modifiers);
+            emitNodeWithWriter(node.name, writeProperty);
+            emit(node.questionToken);
+            emitTypeAnnotation(node.type);
+            writeTrailingSemicolon();
+        }
+        function emitPropertyDeclaration(node) {
+            emitDecorators(node, node.decorators);
+            emitModifiers(node, node.modifiers);
+            emit(node.name);
+            emit(node.questionToken);
+            emit(node.exclamationToken);
+            emitTypeAnnotation(node.type);
+            emitInitializer(node.initializer, node.type ? node.type.end : node.questionToken ? node.questionToken.end : node.name.end, node);
+            writeTrailingSemicolon();
+        }
+        function emitMethodSignature(node) {
+            pushNameGenerationScope(node);
+            emitDecorators(node, node.decorators);
+            emitModifiers(node, node.modifiers);
+            emit(node.name);
+            emit(node.questionToken);
+            emitTypeParameters(node, node.typeParameters);
+            emitParameters(node, node.parameters);
+            emitTypeAnnotation(node.type);
+            writeTrailingSemicolon();
+            popNameGenerationScope(node);
+        }
+        function emitMethodDeclaration(node) {
+            emitDecorators(node, node.decorators);
+            emitModifiers(node, node.modifiers);
+            emit(node.asteriskToken);
+            emit(node.name);
+            emit(node.questionToken);
+            emitSignatureAndBody(node, emitSignatureHead);
+        }
+        function emitConstructor(node) {
+            emitModifiers(node, node.modifiers);
+            writeKeyword("constructor");
+            emitSignatureAndBody(node, emitSignatureHead);
+        }
+        function emitAccessorDeclaration(node) {
+            emitDecorators(node, node.decorators);
+            emitModifiers(node, node.modifiers);
+            writeKeyword(node.kind === 163 ? "get" : "set");
+            writeSpace();
+            emit(node.name);
+            emitSignatureAndBody(node, emitSignatureHead);
+        }
+        function emitCallSignature(node) {
+            pushNameGenerationScope(node);
+            emitDecorators(node, node.decorators);
+            emitModifiers(node, node.modifiers);
+            emitTypeParameters(node, node.typeParameters);
+            emitParameters(node, node.parameters);
+            emitTypeAnnotation(node.type);
+            writeTrailingSemicolon();
+            popNameGenerationScope(node);
+        }
+        function emitConstructSignature(node) {
+            pushNameGenerationScope(node);
+            emitDecorators(node, node.decorators);
+            emitModifiers(node, node.modifiers);
+            writeKeyword("new");
+            writeSpace();
+            emitTypeParameters(node, node.typeParameters);
+            emitParameters(node, node.parameters);
+            emitTypeAnnotation(node.type);
+            writeTrailingSemicolon();
+            popNameGenerationScope(node);
+        }
+        function emitIndexSignature(node) {
+            emitDecorators(node, node.decorators);
+            emitModifiers(node, node.modifiers);
+            emitParametersForIndexSignature(node, node.parameters);
+            emitTypeAnnotation(node.type);
+            writeTrailingSemicolon();
+        }
+        function emitSemicolonClassElement() {
+            writeTrailingSemicolon();
+        }
+        function emitTypePredicate(node) {
+            if (node.assertsModifier) {
+                emit(node.assertsModifier);
+                writeSpace();
+            }
+            emit(node.parameterName);
+            if (node.type) {
+                writeSpace();
+                writeKeyword("is");
+                writeSpace();
+                emit(node.type);
+            }
+        }
+        function emitTypeReference(node) {
+            emit(node.typeName);
+            emitTypeArguments(node, node.typeArguments);
+        }
+        function emitFunctionType(node) {
+            pushNameGenerationScope(node);
+            emitTypeParameters(node, node.typeParameters);
+            emitParametersForArrow(node, node.parameters);
+            writeSpace();
+            writePunctuation("=>");
+            writeSpace();
+            emit(node.type);
+            popNameGenerationScope(node);
+        }
+        function emitJSDocFunctionType(node) {
+            writeKeyword("function");
+            emitParameters(node, node.parameters);
+            writePunctuation(":");
+            emit(node.type);
+        }
+        function emitJSDocNullableType(node) {
+            writePunctuation("?");
+            emit(node.type);
+        }
+        function emitJSDocNonNullableType(node) {
+            writePunctuation("!");
+            emit(node.type);
+        }
+        function emitJSDocOptionalType(node) {
+            emit(node.type);
+            writePunctuation("=");
+        }
+        function emitConstructorType(node) {
+            pushNameGenerationScope(node);
+            writeKeyword("new");
+            writeSpace();
+            emitTypeParameters(node, node.typeParameters);
+            emitParameters(node, node.parameters);
+            writeSpace();
+            writePunctuation("=>");
+            writeSpace();
+            emit(node.type);
+            popNameGenerationScope(node);
+        }
+        function emitTypeQuery(node) {
+            writeKeyword("typeof");
+            writeSpace();
+            emit(node.exprName);
+        }
+        function emitTypeLiteral(node) {
+            writePunctuation("{");
+            var flags = ts.getEmitFlags(node) & 1 ? 768 : 32897;
+            emitList(node, node.members, flags | 524288);
+            writePunctuation("}");
+        }
+        function emitArrayType(node) {
+            emit(node.elementType);
+            writePunctuation("[");
+            writePunctuation("]");
+        }
+        function emitRestOrJSDocVariadicType(node) {
+            writePunctuation("...");
+            emit(node.type);
+        }
+        function emitTupleType(node) {
+            writePunctuation("[");
+            emitList(node, node.elementTypes, 528);
+            writePunctuation("]");
+        }
+        function emitOptionalType(node) {
+            emit(node.type);
+            writePunctuation("?");
+        }
+        function emitUnionType(node) {
+            emitList(node, node.types, 516);
+        }
+        function emitIntersectionType(node) {
+            emitList(node, node.types, 520);
+        }
+        function emitConditionalType(node) {
+            emit(node.checkType);
+            writeSpace();
+            writeKeyword("extends");
+            writeSpace();
+            emit(node.extendsType);
+            writeSpace();
+            writePunctuation("?");
+            writeSpace();
+            emit(node.trueType);
+            writeSpace();
+            writePunctuation(":");
+            writeSpace();
+            emit(node.falseType);
+        }
+        function emitInferType(node) {
+            writeKeyword("infer");
+            writeSpace();
+            emit(node.typeParameter);
+        }
+        function emitParenthesizedType(node) {
+            writePunctuation("(");
+            emit(node.type);
+            writePunctuation(")");
+        }
+        function emitThisType() {
+            writeKeyword("this");
+        }
+        function emitTypeOperator(node) {
+            writeTokenText(node.operator, writeKeyword);
+            writeSpace();
+            emit(node.type);
+        }
+        function emitIndexedAccessType(node) {
+            emit(node.objectType);
+            writePunctuation("[");
+            emit(node.indexType);
+            writePunctuation("]");
+        }
+        function emitMappedType(node) {
+            var emitFlags = ts.getEmitFlags(node);
+            writePunctuation("{");
+            if (emitFlags & 1) {
+                writeSpace();
+            }
+            else {
+                writeLine();
+                increaseIndent();
+            }
+            if (node.readonlyToken) {
+                emit(node.readonlyToken);
+                if (node.readonlyToken.kind !== 138) {
+                    writeKeyword("readonly");
+                }
+                writeSpace();
+            }
+            writePunctuation("[");
+            pipelineEmit(3, node.typeParameter);
+            writePunctuation("]");
+            if (node.questionToken) {
+                emit(node.questionToken);
+                if (node.questionToken.kind !== 57) {
+                    writePunctuation("?");
+                }
+            }
+            writePunctuation(":");
+            writeSpace();
+            emit(node.type);
+            writeTrailingSemicolon();
+            if (emitFlags & 1) {
+                writeSpace();
+            }
+            else {
+                writeLine();
+                decreaseIndent();
+            }
+            writePunctuation("}");
+        }
+        function emitLiteralType(node) {
+            emitExpression(node.literal);
+        }
+        function emitImportTypeNode(node) {
+            if (node.isTypeOf) {
+                writeKeyword("typeof");
+                writeSpace();
+            }
+            writeKeyword("import");
+            writePunctuation("(");
+            emit(node.argument);
+            writePunctuation(")");
+            if (node.qualifier) {
+                writePunctuation(".");
+                emit(node.qualifier);
+            }
+            emitTypeArguments(node, node.typeArguments);
+        }
+        function emitObjectBindingPattern(node) {
+            writePunctuation("{");
+            emitList(node, node.elements, 525136);
+            writePunctuation("}");
+        }
+        function emitArrayBindingPattern(node) {
+            writePunctuation("[");
+            emitList(node, node.elements, 524880);
+            writePunctuation("]");
+        }
+        function emitBindingElement(node) {
+            emit(node.dotDotDotToken);
+            if (node.propertyName) {
+                emit(node.propertyName);
+                writePunctuation(":");
+                writeSpace();
+            }
+            emit(node.name);
+            emitInitializer(node.initializer, node.name.end, node);
+        }
+        function emitArrayLiteralExpression(node) {
+            var elements = node.elements;
+            var preferNewLine = node.multiLine ? 65536 : 0;
+            emitExpressionList(node, elements, 8914 | preferNewLine);
+        }
+        function emitObjectLiteralExpression(node) {
+            ts.forEach(node.properties, generateMemberNames);
+            var indentedFlag = ts.getEmitFlags(node) & 65536;
+            if (indentedFlag) {
+                increaseIndent();
+            }
+            var preferNewLine = node.multiLine ? 65536 : 0;
+            var allowTrailingComma = currentSourceFile.languageVersion >= 1 && !ts.isJsonSourceFile(currentSourceFile) ? 64 : 0;
+            emitList(node, node.properties, 526226 | allowTrailingComma | preferNewLine);
+            if (indentedFlag) {
+                decreaseIndent();
+            }
+        }
+        function emitPropertyAccessExpression(node) {
+            var expression = ts.cast(emitExpression(node.expression), ts.isExpression);
+            var token = node.questionDotToken || ts.createNode(24, node.expression.end, node.name.pos);
+            var linesBeforeDot = getLinesBetweenNodes(node, node.expression, token);
+            var linesAfterDot = getLinesBetweenNodes(node, token, node.name);
+            writeLinesAndIndent(linesBeforeDot, false);
+            var shouldEmitDotDot = token.kind !== 28 &&
+                mayNeedDotDotForPropertyAccess(expression) &&
+                !writer.hasTrailingComment() &&
+                !writer.hasTrailingWhitespace();
+            if (shouldEmitDotDot) {
+                writePunctuation(".");
+            }
+            if (node.questionDotToken) {
+                emit(token);
+            }
+            else {
+                emitTokenWithComment(token.kind, node.expression.end, writePunctuation, node);
+            }
+            writeLinesAndIndent(linesAfterDot, false);
+            emit(node.name);
+            decreaseIndentIf(linesBeforeDot, linesAfterDot);
+        }
+        function mayNeedDotDotForPropertyAccess(expression) {
+            expression = ts.skipPartiallyEmittedExpressions(expression);
+            if (ts.isNumericLiteral(expression)) {
+                var text = getLiteralTextOfNode(expression, true, false);
+                return !expression.numericLiteralFlags && !ts.stringContains(text, ts.tokenToString(24));
+            }
+            else if (ts.isAccessExpression(expression)) {
+                var constantValue = ts.getConstantValue(expression);
+                return typeof constantValue === "number" && isFinite(constantValue)
+                    && Math.floor(constantValue) === constantValue;
+            }
+        }
+        function emitElementAccessExpression(node) {
+            emitExpression(node.expression);
+            emit(node.questionDotToken);
+            emitTokenWithComment(22, node.expression.end, writePunctuation, node);
+            emitExpression(node.argumentExpression);
+            emitTokenWithComment(23, node.argumentExpression.end, writePunctuation, node);
+        }
+        function emitCallExpression(node) {
+            emitExpression(node.expression);
+            emit(node.questionDotToken);
+            emitTypeArguments(node, node.typeArguments);
+            emitExpressionList(node, node.arguments, 2576);
+        }
+        function emitNewExpression(node) {
+            emitTokenWithComment(99, node.pos, writeKeyword, node);
+            writeSpace();
+            emitExpression(node.expression);
+            emitTypeArguments(node, node.typeArguments);
+            emitExpressionList(node, node.arguments, 18960);
+        }
+        function emitTaggedTemplateExpression(node) {
+            emitExpression(node.tag);
+            emitTypeArguments(node, node.typeArguments);
+            writeSpace();
+            emitExpression(node.template);
+        }
+        function emitTypeAssertionExpression(node) {
+            writePunctuation("<");
+            emit(node.type);
+            writePunctuation(">");
+            emitExpression(node.expression);
+        }
+        function emitParenthesizedExpression(node) {
+            var openParenPos = emitTokenWithComment(20, node.pos, writePunctuation, node);
+            var indented = writeLineSeparatorsAndIndentBefore(node.expression, node);
+            emitExpression(node.expression);
+            writeLineSeparatorsAfter(node.expression, node);
+            decreaseIndentIf(indented);
+            emitTokenWithComment(21, node.expression ? node.expression.end : openParenPos, writePunctuation, node);
+        }
+        function emitFunctionExpression(node) {
+            generateNameIfNeeded(node.name);
+            emitFunctionDeclarationOrExpression(node);
+        }
+        function emitArrowFunction(node) {
+            emitDecorators(node, node.decorators);
+            emitModifiers(node, node.modifiers);
+            emitSignatureAndBody(node, emitArrowFunctionHead);
+        }
+        function emitArrowFunctionHead(node) {
+            emitTypeParameters(node, node.typeParameters);
+            emitParametersForArrow(node, node.parameters);
+            emitTypeAnnotation(node.type);
+            writeSpace();
+            emit(node.equalsGreaterThanToken);
+        }
+        function emitDeleteExpression(node) {
+            emitTokenWithComment(85, node.pos, writeKeyword, node);
+            writeSpace();
+            emitExpression(node.expression);
+        }
+        function emitTypeOfExpression(node) {
+            emitTokenWithComment(108, node.pos, writeKeyword, node);
+            writeSpace();
+            emitExpression(node.expression);
+        }
+        function emitVoidExpression(node) {
+            emitTokenWithComment(110, node.pos, writeKeyword, node);
+            writeSpace();
+            emitExpression(node.expression);
+        }
+        function emitAwaitExpression(node) {
+            emitTokenWithComment(127, node.pos, writeKeyword, node);
+            writeSpace();
+            emitExpression(node.expression);
+        }
+        function emitPrefixUnaryExpression(node) {
+            writeTokenText(node.operator, writeOperator);
+            if (shouldEmitWhitespaceBeforeOperand(node)) {
+                writeSpace();
+            }
+            emitExpression(node.operand);
+        }
+        function shouldEmitWhitespaceBeforeOperand(node) {
+            var operand = node.operand;
+            return operand.kind === 207
+                && ((node.operator === 39 && (operand.operator === 39 || operand.operator === 45))
+                    || (node.operator === 40 && (operand.operator === 40 || operand.operator === 46)));
+        }
+        function emitPostfixUnaryExpression(node) {
+            emitExpression(node.operand);
+            writeTokenText(node.operator, writeOperator);
+        }
+        function emitBinaryExpression(node) {
+            var nodeStack = [node];
+            var stateStack = [0];
+            var stackIndex = 0;
+            while (stackIndex >= 0) {
+                node = nodeStack[stackIndex];
+                switch (stateStack[stackIndex]) {
+                    case 0: {
+                        maybePipelineEmitExpression(node.left);
+                        break;
+                    }
+                    case 1: {
+                        var isCommaOperator = node.operatorToken.kind !== 27;
+                        var linesBeforeOperator = getLinesBetweenNodes(node, node.left, node.operatorToken);
+                        var linesAfterOperator = getLinesBetweenNodes(node, node.operatorToken, node.right);
+                        writeLinesAndIndent(linesBeforeOperator, isCommaOperator);
+                        emitLeadingCommentsOfPosition(node.operatorToken.pos);
+                        writeTokenNode(node.operatorToken, node.operatorToken.kind === 97 ? writeKeyword : writeOperator);
+                        emitTrailingCommentsOfPosition(node.operatorToken.end, true);
+                        writeLinesAndIndent(linesAfterOperator, true);
+                        maybePipelineEmitExpression(node.right);
+                        break;
+                    }
+                    case 2: {
+                        var linesBeforeOperator = getLinesBetweenNodes(node, node.left, node.operatorToken);
+                        var linesAfterOperator = getLinesBetweenNodes(node, node.operatorToken, node.right);
+                        decreaseIndentIf(linesBeforeOperator, linesAfterOperator);
+                        stackIndex--;
+                        break;
+                    }
+                    default: return ts.Debug.fail("Invalid state " + stateStack[stackIndex] + " for emitBinaryExpressionWorker");
+                }
+            }
+            function maybePipelineEmitExpression(next) {
+                stateStack[stackIndex]++;
+                var savedLastNode = lastNode;
+                var savedLastSubstitution = lastSubstitution;
+                lastNode = next;
+                lastSubstitution = undefined;
+                var pipelinePhase = getPipelinePhase(0, 1, next);
+                if (pipelinePhase === pipelineEmitWithHint && ts.isBinaryExpression(next)) {
+                    stackIndex++;
+                    stateStack[stackIndex] = 0;
+                    nodeStack[stackIndex] = next;
+                }
+                else {
+                    pipelinePhase(1, next);
+                }
+                ts.Debug.assert(lastNode === next);
+                lastNode = savedLastNode;
+                lastSubstitution = savedLastSubstitution;
+            }
+        }
+        function emitConditionalExpression(node) {
+            var linesBeforeQuestion = getLinesBetweenNodes(node, node.condition, node.questionToken);
+            var linesAfterQuestion = getLinesBetweenNodes(node, node.questionToken, node.whenTrue);
+            var linesBeforeColon = getLinesBetweenNodes(node, node.whenTrue, node.colonToken);
+            var linesAfterColon = getLinesBetweenNodes(node, node.colonToken, node.whenFalse);
+            emitExpression(node.condition);
+            writeLinesAndIndent(linesBeforeQuestion, true);
+            emit(node.questionToken);
+            writeLinesAndIndent(linesAfterQuestion, true);
+            emitExpression(node.whenTrue);
+            decreaseIndentIf(linesBeforeQuestion, linesAfterQuestion);
+            writeLinesAndIndent(linesBeforeColon, true);
+            emit(node.colonToken);
+            writeLinesAndIndent(linesAfterColon, true);
+            emitExpression(node.whenFalse);
+            decreaseIndentIf(linesBeforeColon, linesAfterColon);
+        }
+        function emitTemplateExpression(node) {
+            emit(node.head);
+            emitList(node, node.templateSpans, 262144);
+        }
+        function emitYieldExpression(node) {
+            emitTokenWithComment(121, node.pos, writeKeyword, node);
+            emit(node.asteriskToken);
+            emitExpressionWithLeadingSpace(node.expression);
+        }
+        function emitSpreadExpression(node) {
+            emitTokenWithComment(25, node.pos, writePunctuation, node);
+            emitExpression(node.expression);
+        }
+        function emitClassExpression(node) {
+            generateNameIfNeeded(node.name);
+            emitClassDeclarationOrExpression(node);
+        }
+        function emitExpressionWithTypeArguments(node) {
+            emitExpression(node.expression);
+            emitTypeArguments(node, node.typeArguments);
+        }
+        function emitAsExpression(node) {
+            emitExpression(node.expression);
+            if (node.type) {
+                writeSpace();
+                writeKeyword("as");
+                writeSpace();
+                emit(node.type);
+            }
+        }
+        function emitNonNullExpression(node) {
+            emitExpression(node.expression);
+            writeOperator("!");
+        }
+        function emitMetaProperty(node) {
+            writeToken(node.keywordToken, node.pos, writePunctuation);
+            writePunctuation(".");
+            emit(node.name);
+        }
+        function emitTemplateSpan(node) {
+            emitExpression(node.expression);
+            emit(node.literal);
+        }
+        function emitBlock(node) {
+            emitBlockStatements(node, !node.multiLine && isEmptyBlock(node));
+        }
+        function emitBlockStatements(node, forceSingleLine) {
+            emitTokenWithComment(18, node.pos, writePunctuation, node);
+            var format = forceSingleLine || ts.getEmitFlags(node) & 1 ? 768 : 129;
+            emitList(node, node.statements, format);
+            emitTokenWithComment(19, node.statements.end, writePunctuation, node, !!(format & 1));
+        }
+        function emitVariableStatement(node) {
+            emitModifiers(node, node.modifiers);
+            emit(node.declarationList);
+            writeTrailingSemicolon();
+        }
+        function emitEmptyStatement(isEmbeddedStatement) {
+            if (isEmbeddedStatement) {
+                writePunctuation(";");
+            }
+            else {
+                writeTrailingSemicolon();
+            }
+        }
+        function emitExpressionStatement(node) {
+            emitExpression(node.expression);
+            if (!ts.isJsonSourceFile(currentSourceFile) || ts.nodeIsSynthesized(node.expression)) {
+                writeTrailingSemicolon();
+            }
+        }
+        function emitIfStatement(node) {
+            var openParenPos = emitTokenWithComment(95, node.pos, writeKeyword, node);
+            writeSpace();
+            emitTokenWithComment(20, openParenPos, writePunctuation, node);
+            emitExpression(node.expression);
+            emitTokenWithComment(21, node.expression.end, writePunctuation, node);
+            emitEmbeddedStatement(node, node.thenStatement);
+            if (node.elseStatement) {
+                writeLineOrSpace(node);
+                emitTokenWithComment(87, node.thenStatement.end, writeKeyword, node);
+                if (node.elseStatement.kind === 227) {
+                    writeSpace();
+                    emit(node.elseStatement);
+                }
+                else {
+                    emitEmbeddedStatement(node, node.elseStatement);
+                }
+            }
+        }
+        function emitWhileClause(node, startPos) {
+            var openParenPos = emitTokenWithComment(111, startPos, writeKeyword, node);
+            writeSpace();
+            emitTokenWithComment(20, openParenPos, writePunctuation, node);
+            emitExpression(node.expression);
+            emitTokenWithComment(21, node.expression.end, writePunctuation, node);
+        }
+        function emitDoStatement(node) {
+            emitTokenWithComment(86, node.pos, writeKeyword, node);
+            emitEmbeddedStatement(node, node.statement);
+            if (ts.isBlock(node.statement)) {
+                writeSpace();
+            }
+            else {
+                writeLineOrSpace(node);
+            }
+            emitWhileClause(node, node.statement.end);
+            writeTrailingSemicolon();
+        }
+        function emitWhileStatement(node) {
+            emitWhileClause(node, node.pos);
+            emitEmbeddedStatement(node, node.statement);
+        }
+        function emitForStatement(node) {
+            var openParenPos = emitTokenWithComment(93, node.pos, writeKeyword, node);
+            writeSpace();
+            var pos = emitTokenWithComment(20, openParenPos, writePunctuation, node);
+            emitForBinding(node.initializer);
+            pos = emitTokenWithComment(26, node.initializer ? node.initializer.end : pos, writePunctuation, node);
+            emitExpressionWithLeadingSpace(node.condition);
+            pos = emitTokenWithComment(26, node.condition ? node.condition.end : pos, writePunctuation, node);
+            emitExpressionWithLeadingSpace(node.incrementor);
+            emitTokenWithComment(21, node.incrementor ? node.incrementor.end : pos, writePunctuation, node);
+            emitEmbeddedStatement(node, node.statement);
+        }
+        function emitForInStatement(node) {
+            var openParenPos = emitTokenWithComment(93, node.pos, writeKeyword, node);
+            writeSpace();
+            emitTokenWithComment(20, openParenPos, writePunctuation, node);
+            emitForBinding(node.initializer);
+            writeSpace();
+            emitTokenWithComment(97, node.initializer.end, writeKeyword, node);
+            writeSpace();
+            emitExpression(node.expression);
+            emitTokenWithComment(21, node.expression.end, writePunctuation, node);
+            emitEmbeddedStatement(node, node.statement);
+        }
+        function emitForOfStatement(node) {
+            var openParenPos = emitTokenWithComment(93, node.pos, writeKeyword, node);
+            writeSpace();
+            emitWithTrailingSpace(node.awaitModifier);
+            emitTokenWithComment(20, openParenPos, writePunctuation, node);
+            emitForBinding(node.initializer);
+            writeSpace();
+            emitTokenWithComment(152, node.initializer.end, writeKeyword, node);
+            writeSpace();
+            emitExpression(node.expression);
+            emitTokenWithComment(21, node.expression.end, writePunctuation, node);
+            emitEmbeddedStatement(node, node.statement);
+        }
+        function emitForBinding(node) {
+            if (node !== undefined) {
+                if (node.kind === 243) {
+                    emit(node);
+                }
+                else {
+                    emitExpression(node);
+                }
+            }
+        }
+        function emitContinueStatement(node) {
+            emitTokenWithComment(82, node.pos, writeKeyword, node);
+            emitWithLeadingSpace(node.label);
+            writeTrailingSemicolon();
+        }
+        function emitBreakStatement(node) {
+            emitTokenWithComment(77, node.pos, writeKeyword, node);
+            emitWithLeadingSpace(node.label);
+            writeTrailingSemicolon();
+        }
+        function emitTokenWithComment(token, pos, writer, contextNode, indentLeading) {
+            var node = ts.getParseTreeNode(contextNode);
+            var isSimilarNode = node && node.kind === contextNode.kind;
+            var startPos = pos;
+            if (isSimilarNode && currentSourceFile) {
+                pos = ts.skipTrivia(currentSourceFile.text, pos);
+            }
+            if (emitLeadingCommentsOfPosition && isSimilarNode && contextNode.pos !== startPos) {
+                var needsIndent = indentLeading && currentSourceFile && !ts.positionsAreOnSameLine(startPos, pos, currentSourceFile);
+                if (needsIndent) {
+                    increaseIndent();
+                }
+                emitLeadingCommentsOfPosition(startPos);
+                if (needsIndent) {
+                    decreaseIndent();
+                }
+            }
+            pos = writeTokenText(token, writer, pos);
+            if (emitTrailingCommentsOfPosition && isSimilarNode && contextNode.end !== pos) {
+                emitTrailingCommentsOfPosition(pos, true);
+            }
+            return pos;
+        }
+        function emitReturnStatement(node) {
+            emitTokenWithComment(101, node.pos, writeKeyword, node);
+            emitExpressionWithLeadingSpace(node.expression);
+            writeTrailingSemicolon();
+        }
+        function emitWithStatement(node) {
+            var openParenPos = emitTokenWithComment(112, node.pos, writeKeyword, node);
+            writeSpace();
+            emitTokenWithComment(20, openParenPos, writePunctuation, node);
+            emitExpression(node.expression);
+            emitTokenWithComment(21, node.expression.end, writePunctuation, node);
+            emitEmbeddedStatement(node, node.statement);
+        }
+        function emitSwitchStatement(node) {
+            var openParenPos = emitTokenWithComment(103, node.pos, writeKeyword, node);
+            writeSpace();
+            emitTokenWithComment(20, openParenPos, writePunctuation, node);
+            emitExpression(node.expression);
+            emitTokenWithComment(21, node.expression.end, writePunctuation, node);
+            writeSpace();
+            emit(node.caseBlock);
+        }
+        function emitLabeledStatement(node) {
+            emit(node.label);
+            emitTokenWithComment(58, node.label.end, writePunctuation, node);
+            writeSpace();
+            emit(node.statement);
+        }
+        function emitThrowStatement(node) {
+            emitTokenWithComment(105, node.pos, writeKeyword, node);
+            emitExpressionWithLeadingSpace(node.expression);
+            writeTrailingSemicolon();
+        }
+        function emitTryStatement(node) {
+            emitTokenWithComment(107, node.pos, writeKeyword, node);
+            writeSpace();
+            emit(node.tryBlock);
+            if (node.catchClause) {
+                writeLineOrSpace(node);
+                emit(node.catchClause);
+            }
+            if (node.finallyBlock) {
+                writeLineOrSpace(node);
+                emitTokenWithComment(92, (node.catchClause || node.tryBlock).end, writeKeyword, node);
+                writeSpace();
+                emit(node.finallyBlock);
+            }
+        }
+        function emitDebuggerStatement(node) {
+            writeToken(83, node.pos, writeKeyword);
+            writeTrailingSemicolon();
+        }
+        function emitVariableDeclaration(node) {
+            emit(node.name);
+            emit(node.exclamationToken);
+            emitTypeAnnotation(node.type);
+            emitInitializer(node.initializer, node.type ? node.type.end : node.name.end, node);
+        }
+        function emitVariableDeclarationList(node) {
+            writeKeyword(ts.isLet(node) ? "let" : ts.isVarConst(node) ? "const" : "var");
+            writeSpace();
+            emitList(node, node.declarations, 528);
+        }
+        function emitFunctionDeclaration(node) {
+            emitFunctionDeclarationOrExpression(node);
+        }
+        function emitFunctionDeclarationOrExpression(node) {
+            emitDecorators(node, node.decorators);
+            emitModifiers(node, node.modifiers);
+            writeKeyword("function");
+            emit(node.asteriskToken);
+            writeSpace();
+            emitIdentifierName(node.name);
+            emitSignatureAndBody(node, emitSignatureHead);
+        }
+        function emitBlockCallback(_hint, body) {
+            emitBlockFunctionBody(body);
+        }
+        function emitSignatureAndBody(node, emitSignatureHead) {
+            var body = node.body;
+            if (body) {
+                if (ts.isBlock(body)) {
+                    var indentedFlag = ts.getEmitFlags(node) & 65536;
+                    if (indentedFlag) {
+                        increaseIndent();
+                    }
+                    pushNameGenerationScope(node);
+                    ts.forEach(node.parameters, generateNames);
+                    generateNames(node.body);
+                    emitSignatureHead(node);
+                    if (onEmitNode) {
+                        onEmitNode(4, body, emitBlockCallback);
+                    }
+                    else {
+                        emitBlockFunctionBody(body);
+                    }
+                    popNameGenerationScope(node);
+                    if (indentedFlag) {
+                        decreaseIndent();
+                    }
+                }
+                else {
+                    emitSignatureHead(node);
+                    writeSpace();
+                    emitExpression(body);
+                }
+            }
+            else {
+                emitSignatureHead(node);
+                writeTrailingSemicolon();
+            }
+        }
+        function emitSignatureHead(node) {
+            emitTypeParameters(node, node.typeParameters);
+            emitParameters(node, node.parameters);
+            emitTypeAnnotation(node.type);
+        }
+        function shouldEmitBlockFunctionBodyOnSingleLine(body) {
+            if (ts.getEmitFlags(body) & 1) {
+                return true;
+            }
+            if (body.multiLine) {
+                return false;
+            }
+            if (!ts.nodeIsSynthesized(body) && !ts.rangeIsOnSingleLine(body, currentSourceFile)) {
+                return false;
+            }
+            if (getLeadingLineTerminatorCount(body, body.statements, 2)
+                || getClosingLineTerminatorCount(body, body.statements, 2)) {
+                return false;
+            }
+            var previousStatement;
+            for (var _a = 0, _b = body.statements; _a < _b.length; _a++) {
+                var statement = _b[_a];
+                if (getSeparatingLineTerminatorCount(previousStatement, statement, 2) > 0) {
+                    return false;
+                }
+                previousStatement = statement;
+            }
+            return true;
+        }
+        function emitBlockFunctionBody(body) {
+            writeSpace();
+            writePunctuation("{");
+            increaseIndent();
+            var emitBlockFunctionBody = shouldEmitBlockFunctionBodyOnSingleLine(body)
+                ? emitBlockFunctionBodyOnSingleLine
+                : emitBlockFunctionBodyWorker;
+            if (emitBodyWithDetachedComments) {
+                emitBodyWithDetachedComments(body, body.statements, emitBlockFunctionBody);
+            }
+            else {
+                emitBlockFunctionBody(body);
+            }
+            decreaseIndent();
+            writeToken(19, body.statements.end, writePunctuation, body);
+        }
+        function emitBlockFunctionBodyOnSingleLine(body) {
+            emitBlockFunctionBodyWorker(body, true);
+        }
+        function emitBlockFunctionBodyWorker(body, emitBlockFunctionBodyOnSingleLine) {
+            var statementOffset = emitPrologueDirectives(body.statements);
+            var pos = writer.getTextPos();
+            emitHelpers(body);
+            if (statementOffset === 0 && pos === writer.getTextPos() && emitBlockFunctionBodyOnSingleLine) {
+                decreaseIndent();
+                emitList(body, body.statements, 768);
+                increaseIndent();
+            }
+            else {
+                emitList(body, body.statements, 1, statementOffset);
+            }
+        }
+        function emitClassDeclaration(node) {
+            emitClassDeclarationOrExpression(node);
+        }
+        function emitClassDeclarationOrExpression(node) {
+            ts.forEach(node.members, generateMemberNames);
+            emitDecorators(node, node.decorators);
+            emitModifiers(node, node.modifiers);
+            writeKeyword("class");
+            if (node.name) {
+                writeSpace();
+                emitIdentifierName(node.name);
+            }
+            var indentedFlag = ts.getEmitFlags(node) & 65536;
+            if (indentedFlag) {
+                increaseIndent();
+            }
+            emitTypeParameters(node, node.typeParameters);
+            emitList(node, node.heritageClauses, 0);
+            writeSpace();
+            writePunctuation("{");
+            emitList(node, node.members, 129);
+            writePunctuation("}");
+            if (indentedFlag) {
+                decreaseIndent();
+            }
+        }
+        function emitInterfaceDeclaration(node) {
+            emitDecorators(node, node.decorators);
+            emitModifiers(node, node.modifiers);
+            writeKeyword("interface");
+            writeSpace();
+            emit(node.name);
+            emitTypeParameters(node, node.typeParameters);
+            emitList(node, node.heritageClauses, 512);
+            writeSpace();
+            writePunctuation("{");
+            emitList(node, node.members, 129);
+            writePunctuation("}");
+        }
+        function emitTypeAliasDeclaration(node) {
+            emitDecorators(node, node.decorators);
+            emitModifiers(node, node.modifiers);
+            writeKeyword("type");
+            writeSpace();
+            emit(node.name);
+            emitTypeParameters(node, node.typeParameters);
+            writeSpace();
+            writePunctuation("=");
+            writeSpace();
+            emit(node.type);
+            writeTrailingSemicolon();
+        }
+        function emitEnumDeclaration(node) {
+            emitModifiers(node, node.modifiers);
+            writeKeyword("enum");
+            writeSpace();
+            emit(node.name);
+            writeSpace();
+            writePunctuation("{");
+            emitList(node, node.members, 145);
+            writePunctuation("}");
+        }
+        function emitModuleDeclaration(node) {
+            emitModifiers(node, node.modifiers);
+            if (~node.flags & 1024) {
+                writeKeyword(node.flags & 16 ? "namespace" : "module");
+                writeSpace();
+            }
+            emit(node.name);
+            var body = node.body;
+            if (!body)
+                return writeTrailingSemicolon();
+            while (body.kind === 249) {
+                writePunctuation(".");
+                emit(body.name);
+                body = body.body;
+            }
+            writeSpace();
+            emit(body);
+        }
+        function emitModuleBlock(node) {
+            pushNameGenerationScope(node);
+            ts.forEach(node.statements, generateNames);
+            emitBlockStatements(node, isEmptyBlock(node));
+            popNameGenerationScope(node);
+        }
+        function emitCaseBlock(node) {
+            emitTokenWithComment(18, node.pos, writePunctuation, node);
+            emitList(node, node.clauses, 129);
+            emitTokenWithComment(19, node.clauses.end, writePunctuation, node, true);
+        }
+        function emitImportEqualsDeclaration(node) {
+            emitModifiers(node, node.modifiers);
+            emitTokenWithComment(96, node.modifiers ? node.modifiers.end : node.pos, writeKeyword, node);
+            writeSpace();
+            emit(node.name);
+            writeSpace();
+            emitTokenWithComment(62, node.name.end, writePunctuation, node);
+            writeSpace();
+            emitModuleReference(node.moduleReference);
+            writeTrailingSemicolon();
+        }
+        function emitModuleReference(node) {
+            if (node.kind === 75) {
+                emitExpression(node);
+            }
+            else {
+                emit(node);
+            }
+        }
+        function emitImportDeclaration(node) {
+            emitModifiers(node, node.modifiers);
+            emitTokenWithComment(96, node.modifiers ? node.modifiers.end : node.pos, writeKeyword, node);
+            writeSpace();
+            if (node.importClause) {
+                emit(node.importClause);
+                writeSpace();
+                emitTokenWithComment(149, node.importClause.end, writeKeyword, node);
+                writeSpace();
+            }
+            emitExpression(node.moduleSpecifier);
+            writeTrailingSemicolon();
+        }
+        function emitImportClause(node) {
+            if (node.isTypeOnly) {
+                emitTokenWithComment(145, node.pos, writeKeyword, node);
+                writeSpace();
+            }
+            emit(node.name);
+            if (node.name && node.namedBindings) {
+                emitTokenWithComment(27, node.name.end, writePunctuation, node);
+                writeSpace();
+            }
+            emit(node.namedBindings);
+        }
+        function emitNamespaceImport(node) {
+            var asPos = emitTokenWithComment(41, node.pos, writePunctuation, node);
+            writeSpace();
+            emitTokenWithComment(123, asPos, writeKeyword, node);
+            writeSpace();
+            emit(node.name);
+        }
+        function emitNamedImports(node) {
+            emitNamedImportsOrExports(node);
+        }
+        function emitImportSpecifier(node) {
+            emitImportOrExportSpecifier(node);
+        }
+        function emitExportAssignment(node) {
+            var nextPos = emitTokenWithComment(89, node.pos, writeKeyword, node);
+            writeSpace();
+            if (node.isExportEquals) {
+                emitTokenWithComment(62, nextPos, writeOperator, node);
+            }
+            else {
+                emitTokenWithComment(84, nextPos, writeKeyword, node);
+            }
+            writeSpace();
+            emitExpression(node.expression);
+            writeTrailingSemicolon();
+        }
+        function emitExportDeclaration(node) {
+            var nextPos = emitTokenWithComment(89, node.pos, writeKeyword, node);
+            writeSpace();
+            if (node.isTypeOnly) {
+                nextPos = emitTokenWithComment(145, nextPos, writeKeyword, node);
+                writeSpace();
+            }
+            if (node.exportClause) {
+                emit(node.exportClause);
+            }
+            else {
+                nextPos = emitTokenWithComment(41, nextPos, writePunctuation, node);
+            }
+            if (node.moduleSpecifier) {
+                writeSpace();
+                var fromPos = node.exportClause ? node.exportClause.end : nextPos;
+                emitTokenWithComment(149, fromPos, writeKeyword, node);
+                writeSpace();
+                emitExpression(node.moduleSpecifier);
+            }
+            writeTrailingSemicolon();
+        }
+        function emitNamespaceExportDeclaration(node) {
+            var nextPos = emitTokenWithComment(89, node.pos, writeKeyword, node);
+            writeSpace();
+            nextPos = emitTokenWithComment(123, nextPos, writeKeyword, node);
+            writeSpace();
+            nextPos = emitTokenWithComment(136, nextPos, writeKeyword, node);
+            writeSpace();
+            emit(node.name);
+            writeTrailingSemicolon();
+        }
+        function emitNamespaceExport(node) {
+            var asPos = emitTokenWithComment(41, node.pos, writePunctuation, node);
+            writeSpace();
+            emitTokenWithComment(123, asPos, writeKeyword, node);
+            writeSpace();
+            emit(node.name);
+        }
+        function emitNamedExports(node) {
+            emitNamedImportsOrExports(node);
+        }
+        function emitExportSpecifier(node) {
+            emitImportOrExportSpecifier(node);
+        }
+        function emitNamedImportsOrExports(node) {
+            writePunctuation("{");
+            emitList(node, node.elements, 525136);
+            writePunctuation("}");
+        }
+        function emitImportOrExportSpecifier(node) {
+            if (node.propertyName) {
+                emit(node.propertyName);
+                writeSpace();
+                emitTokenWithComment(123, node.propertyName.end, writeKeyword, node);
+                writeSpace();
+            }
+            emit(node.name);
+        }
+        function emitExternalModuleReference(node) {
+            writeKeyword("require");
+            writePunctuation("(");
+            emitExpression(node.expression);
+            writePunctuation(")");
+        }
+        function emitJsxElement(node) {
+            emit(node.openingElement);
+            emitList(node, node.children, 262144);
+            emit(node.closingElement);
+        }
+        function emitJsxSelfClosingElement(node) {
+            writePunctuation("<");
+            emitJsxTagName(node.tagName);
+            emitTypeArguments(node, node.typeArguments);
+            writeSpace();
+            emit(node.attributes);
+            writePunctuation("/>");
+        }
+        function emitJsxFragment(node) {
+            emit(node.openingFragment);
+            emitList(node, node.children, 262144);
+            emit(node.closingFragment);
+        }
+        function emitJsxOpeningElementOrFragment(node) {
+            writePunctuation("<");
+            if (ts.isJsxOpeningElement(node)) {
+                var indented = writeLineSeparatorsAndIndentBefore(node.tagName, node);
+                emitJsxTagName(node.tagName);
+                emitTypeArguments(node, node.typeArguments);
+                if (node.attributes.properties && node.attributes.properties.length > 0) {
+                    writeSpace();
+                }
+                emit(node.attributes);
+                writeLineSeparatorsAfter(node.attributes, node);
+                decreaseIndentIf(indented);
+            }
+            writePunctuation(">");
+        }
+        function emitJsxText(node) {
+            writer.writeLiteral(node.text);
+        }
+        function emitJsxClosingElementOrFragment(node) {
+            writePunctuation("</");
+            if (ts.isJsxClosingElement(node)) {
+                emitJsxTagName(node.tagName);
+            }
+            writePunctuation(">");
+        }
+        function emitJsxAttributes(node) {
+            emitList(node, node.properties, 262656);
+        }
+        function emitJsxAttribute(node) {
+            emit(node.name);
+            emitNodeWithPrefix("=", writePunctuation, node.initializer, emitJsxAttributeValue);
+        }
+        function emitJsxSpreadAttribute(node) {
+            writePunctuation("{...");
+            emitExpression(node.expression);
+            writePunctuation("}");
+        }
+        function emitJsxExpression(node) {
+            if (node.expression) {
+                writePunctuation("{");
+                emit(node.dotDotDotToken);
+                emitExpression(node.expression);
+                writePunctuation("}");
+            }
+        }
+        function emitJsxTagName(node) {
+            if (node.kind === 75) {
+                emitExpression(node);
+            }
+            else {
+                emit(node);
+            }
+        }
+        function emitCaseClause(node) {
+            emitTokenWithComment(78, node.pos, writeKeyword, node);
+            writeSpace();
+            emitExpression(node.expression);
+            emitCaseOrDefaultClauseRest(node, node.statements, node.expression.end);
+        }
+        function emitDefaultClause(node) {
+            var pos = emitTokenWithComment(84, node.pos, writeKeyword, node);
+            emitCaseOrDefaultClauseRest(node, node.statements, pos);
+        }
+        function emitCaseOrDefaultClauseRest(parentNode, statements, colonPos) {
+            var emitAsSingleStatement = statements.length === 1 &&
+                (ts.nodeIsSynthesized(parentNode) ||
+                    ts.nodeIsSynthesized(statements[0]) ||
+                    ts.rangeStartPositionsAreOnSameLine(parentNode, statements[0], currentSourceFile));
+            var format = 163969;
+            if (emitAsSingleStatement) {
+                writeToken(58, colonPos, writePunctuation, parentNode);
+                writeSpace();
+                format &= ~(1 | 128);
+            }
+            else {
+                emitTokenWithComment(58, colonPos, writePunctuation, parentNode);
+            }
+            emitList(parentNode, statements, format);
+        }
+        function emitHeritageClause(node) {
+            writeSpace();
+            writeTokenText(node.token, writeKeyword);
+            writeSpace();
+            emitList(node, node.types, 528);
+        }
+        function emitCatchClause(node) {
+            var openParenPos = emitTokenWithComment(79, node.pos, writeKeyword, node);
+            writeSpace();
+            if (node.variableDeclaration) {
+                emitTokenWithComment(20, openParenPos, writePunctuation, node);
+                emit(node.variableDeclaration);
+                emitTokenWithComment(21, node.variableDeclaration.end, writePunctuation, node);
+                writeSpace();
+            }
+            emit(node.block);
+        }
+        function emitPropertyAssignment(node) {
+            emit(node.name);
+            writePunctuation(":");
+            writeSpace();
+            var initializer = node.initializer;
+            if (emitTrailingCommentsOfPosition && (ts.getEmitFlags(initializer) & 512) === 0) {
+                var commentRange = ts.getCommentRange(initializer);
+                emitTrailingCommentsOfPosition(commentRange.pos);
+            }
+            emitExpression(initializer);
+        }
+        function emitShorthandPropertyAssignment(node) {
+            emit(node.name);
+            if (node.objectAssignmentInitializer) {
+                writeSpace();
+                writePunctuation("=");
+                writeSpace();
+                emitExpression(node.objectAssignmentInitializer);
+            }
+        }
+        function emitSpreadAssignment(node) {
+            if (node.expression) {
+                emitTokenWithComment(25, node.pos, writePunctuation, node);
+                emitExpression(node.expression);
+            }
+        }
+        function emitEnumMember(node) {
+            emit(node.name);
+            emitInitializer(node.initializer, node.name.end, node);
+        }
+        function emitJSDoc(node) {
+            write("/**");
+            if (node.comment) {
+                var lines = node.comment.split(/\r\n?|\n/g);
+                for (var _a = 0, lines_2 = lines; _a < lines_2.length; _a++) {
+                    var line = lines_2[_a];
+                    writeLine();
+                    writeSpace();
+                    writePunctuation("*");
+                    writeSpace();
+                    write(line);
+                }
+            }
+            if (node.tags) {
+                if (node.tags.length === 1 && node.tags[0].kind === 320 && !node.comment) {
+                    writeSpace();
+                    emit(node.tags[0]);
+                }
+                else {
+                    emitList(node, node.tags, 33);
+                }
+            }
+            writeSpace();
+            write("*/");
+        }
+        function emitJSDocSimpleTypedTag(tag) {
+            emitJSDocTagName(tag.tagName);
+            emitJSDocTypeExpression(tag.typeExpression);
+            emitJSDocComment(tag.comment);
+        }
+        function emitJSDocHeritageTag(tag) {
+            emitJSDocTagName(tag.tagName);
+            writeSpace();
+            writePunctuation("{");
+            emit(tag.class);
+            writePunctuation("}");
+            emitJSDocComment(tag.comment);
+        }
+        function emitJSDocTemplateTag(tag) {
+            emitJSDocTagName(tag.tagName);
+            emitJSDocTypeExpression(tag.constraint);
+            writeSpace();
+            emitList(tag, tag.typeParameters, 528);
+            emitJSDocComment(tag.comment);
+        }
+        function emitJSDocTypedefTag(tag) {
+            emitJSDocTagName(tag.tagName);
+            if (tag.typeExpression) {
+                if (tag.typeExpression.kind === 294) {
+                    emitJSDocTypeExpression(tag.typeExpression);
+                }
+                else {
+                    writeSpace();
+                    writePunctuation("{");
+                    write("Object");
+                    if (tag.typeExpression.isArrayType) {
+                        writePunctuation("[");
+                        writePunctuation("]");
+                    }
+                    writePunctuation("}");
+                }
+            }
+            if (tag.fullName) {
+                writeSpace();
+                emit(tag.fullName);
+            }
+            emitJSDocComment(tag.comment);
+            if (tag.typeExpression && tag.typeExpression.kind === 304) {
+                emitJSDocTypeLiteral(tag.typeExpression);
+            }
+        }
+        function emitJSDocCallbackTag(tag) {
+            emitJSDocTagName(tag.tagName);
+            if (tag.name) {
+                writeSpace();
+                emit(tag.name);
+            }
+            emitJSDocComment(tag.comment);
+            emitJSDocSignature(tag.typeExpression);
+        }
+        function emitJSDocSimpleTag(tag) {
+            emitJSDocTagName(tag.tagName);
+            emitJSDocComment(tag.comment);
+        }
+        function emitJSDocTypeLiteral(lit) {
+            emitList(lit, ts.createNodeArray(lit.jsDocPropertyTags), 33);
+        }
+        function emitJSDocSignature(sig) {
+            if (sig.typeParameters) {
+                emitList(sig, ts.createNodeArray(sig.typeParameters), 33);
+            }
+            if (sig.parameters) {
+                emitList(sig, ts.createNodeArray(sig.parameters), 33);
+            }
+            if (sig.type) {
+                writeLine();
+                writeSpace();
+                writePunctuation("*");
+                writeSpace();
+                emit(sig.type);
+            }
+        }
+        function emitJSDocPropertyLikeTag(param) {
+            emitJSDocTagName(param.tagName);
+            emitJSDocTypeExpression(param.typeExpression);
+            writeSpace();
+            if (param.isBracketed) {
+                writePunctuation("[");
+            }
+            emit(param.name);
+            if (param.isBracketed) {
+                writePunctuation("]");
+            }
+            emitJSDocComment(param.comment);
+        }
+        function emitJSDocTagName(tagName) {
+            writePunctuation("@");
+            emit(tagName);
+        }
+        function emitJSDocComment(comment) {
+            if (comment) {
+                writeSpace();
+                write(comment);
+            }
+        }
+        function emitJSDocTypeExpression(typeExpression) {
+            if (typeExpression) {
+                writeSpace();
+                writePunctuation("{");
+                emit(typeExpression.type);
+                writePunctuation("}");
+            }
+        }
+        function emitSourceFile(node) {
+            writeLine();
+            var statements = node.statements;
+            if (emitBodyWithDetachedComments) {
+                var shouldEmitDetachedComment = statements.length === 0 ||
+                    !ts.isPrologueDirective(statements[0]) ||
+                    ts.nodeIsSynthesized(statements[0]);
+                if (shouldEmitDetachedComment) {
+                    emitBodyWithDetachedComments(node, statements, emitSourceFileWorker);
+                    return;
+                }
+            }
+            emitSourceFileWorker(node);
+        }
+        function emitSyntheticTripleSlashReferencesIfNeeded(node) {
+            emitTripleSlashDirectives(!!node.hasNoDefaultLib, node.syntheticFileReferences || [], node.syntheticTypeReferences || [], node.syntheticLibReferences || []);
+            for (var _a = 0, _b = node.prepends; _a < _b.length; _a++) {
+                var prepend = _b[_a];
+                if (ts.isUnparsedSource(prepend) && prepend.syntheticReferences) {
+                    for (var _c = 0, _d = prepend.syntheticReferences; _c < _d.length; _c++) {
+                        var ref = _d[_c];
+                        emit(ref);
+                        writeLine();
+                    }
+                }
+            }
+        }
+        function emitTripleSlashDirectivesIfNeeded(node) {
+            if (node.isDeclarationFile)
+                emitTripleSlashDirectives(node.hasNoDefaultLib, node.referencedFiles, node.typeReferenceDirectives, node.libReferenceDirectives);
+        }
+        function emitTripleSlashDirectives(hasNoDefaultLib, files, types, libs) {
+            if (hasNoDefaultLib) {
+                var pos = writer.getTextPos();
+                writeComment("/// <reference no-default-lib=\"true\"/>");
+                if (bundleFileInfo)
+                    bundleFileInfo.sections.push({ pos: pos, end: writer.getTextPos(), kind: "no-default-lib" });
+                writeLine();
+            }
+            if (currentSourceFile && currentSourceFile.moduleName) {
+                writeComment("/// <amd-module name=\"" + currentSourceFile.moduleName + "\" />");
+                writeLine();
+            }
+            if (currentSourceFile && currentSourceFile.amdDependencies) {
+                for (var _a = 0, _b = currentSourceFile.amdDependencies; _a < _b.length; _a++) {
+                    var dep = _b[_a];
+                    if (dep.name) {
+                        writeComment("/// <amd-dependency name=\"" + dep.name + "\" path=\"" + dep.path + "\" />");
+                    }
+                    else {
+                        writeComment("/// <amd-dependency path=\"" + dep.path + "\" />");
+                    }
+                    writeLine();
+                }
+            }
+            for (var _c = 0, files_1 = files; _c < files_1.length; _c++) {
+                var directive = files_1[_c];
+                var pos = writer.getTextPos();
+                writeComment("/// <reference path=\"" + directive.fileName + "\" />");
+                if (bundleFileInfo)
+                    bundleFileInfo.sections.push({ pos: pos, end: writer.getTextPos(), kind: "reference", data: directive.fileName });
+                writeLine();
+            }
+            for (var _d = 0, types_22 = types; _d < types_22.length; _d++) {
+                var directive = types_22[_d];
+                var pos = writer.getTextPos();
+                writeComment("/// <reference types=\"" + directive.fileName + "\" />");
+                if (bundleFileInfo)
+                    bundleFileInfo.sections.push({ pos: pos, end: writer.getTextPos(), kind: "type", data: directive.fileName });
+                writeLine();
+            }
+            for (var _e = 0, libs_1 = libs; _e < libs_1.length; _e++) {
+                var directive = libs_1[_e];
+                var pos = writer.getTextPos();
+                writeComment("/// <reference lib=\"" + directive.fileName + "\" />");
+                if (bundleFileInfo)
+                    bundleFileInfo.sections.push({ pos: pos, end: writer.getTextPos(), kind: "lib", data: directive.fileName });
+                writeLine();
+            }
+        }
+        function emitSourceFileWorker(node) {
+            var statements = node.statements;
+            pushNameGenerationScope(node);
+            ts.forEach(node.statements, generateNames);
+            emitHelpers(node);
+            var index = ts.findIndex(statements, function (statement) { return !ts.isPrologueDirective(statement); });
+            emitTripleSlashDirectivesIfNeeded(node);
+            emitList(node, statements, 1, index === -1 ? statements.length : index);
+            popNameGenerationScope(node);
+        }
+        function emitPartiallyEmittedExpression(node) {
+            emitExpression(node.expression);
+        }
+        function emitCommaList(node) {
+            emitExpressionList(node, node.elements, 528);
+        }
+        function emitPrologueDirectives(statements, sourceFile, seenPrologueDirectives, recordBundleFileSection) {
+            var needsToSetSourceFile = !!sourceFile;
+            for (var i = 0; i < statements.length; i++) {
+                var statement = statements[i];
+                if (ts.isPrologueDirective(statement)) {
+                    var shouldEmitPrologueDirective = seenPrologueDirectives ? !seenPrologueDirectives.has(statement.expression.text) : true;
+                    if (shouldEmitPrologueDirective) {
+                        if (needsToSetSourceFile) {
+                            needsToSetSourceFile = false;
+                            setSourceFile(sourceFile);
+                        }
+                        writeLine();
+                        var pos = writer.getTextPos();
+                        emit(statement);
+                        if (recordBundleFileSection && bundleFileInfo)
+                            bundleFileInfo.sections.push({ pos: pos, end: writer.getTextPos(), kind: "prologue", data: statement.expression.text });
+                        if (seenPrologueDirectives) {
+                            seenPrologueDirectives.set(statement.expression.text, true);
+                        }
+                    }
+                }
+                else {
+                    return i;
+                }
+            }
+            return statements.length;
+        }
+        function emitUnparsedPrologues(prologues, seenPrologueDirectives) {
+            for (var _a = 0, prologues_1 = prologues; _a < prologues_1.length; _a++) {
+                var prologue = prologues_1[_a];
+                if (!seenPrologueDirectives.has(prologue.data)) {
+                    writeLine();
+                    var pos = writer.getTextPos();
+                    emit(prologue);
+                    if (bundleFileInfo)
+                        bundleFileInfo.sections.push({ pos: pos, end: writer.getTextPos(), kind: "prologue", data: prologue.data });
+                    if (seenPrologueDirectives) {
+                        seenPrologueDirectives.set(prologue.data, true);
+                    }
+                }
+            }
+        }
+        function emitPrologueDirectivesIfNeeded(sourceFileOrBundle) {
+            if (ts.isSourceFile(sourceFileOrBundle)) {
+                emitPrologueDirectives(sourceFileOrBundle.statements, sourceFileOrBundle);
+            }
+            else {
+                var seenPrologueDirectives = ts.createMap();
+                for (var _a = 0, _b = sourceFileOrBundle.prepends; _a < _b.length; _a++) {
+                    var prepend = _b[_a];
+                    emitUnparsedPrologues(prepend.prologues, seenPrologueDirectives);
+                }
+                for (var _c = 0, _d = sourceFileOrBundle.sourceFiles; _c < _d.length; _c++) {
+                    var sourceFile = _d[_c];
+                    emitPrologueDirectives(sourceFile.statements, sourceFile, seenPrologueDirectives, true);
+                }
+                setSourceFile(undefined);
+            }
+        }
+        function getPrologueDirectivesFromBundledSourceFiles(bundle) {
+            var seenPrologueDirectives = ts.createMap();
+            var prologues;
+            for (var index = 0; index < bundle.sourceFiles.length; index++) {
+                var sourceFile = bundle.sourceFiles[index];
+                var directives = void 0;
+                var end = 0;
+                for (var _a = 0, _b = sourceFile.statements; _a < _b.length; _a++) {
+                    var statement = _b[_a];
+                    if (!ts.isPrologueDirective(statement))
+                        break;
+                    if (seenPrologueDirectives.has(statement.expression.text))
+                        continue;
+                    seenPrologueDirectives.set(statement.expression.text, true);
+                    (directives || (directives = [])).push({
+                        pos: statement.pos,
+                        end: statement.end,
+                        expression: {
+                            pos: statement.expression.pos,
+                            end: statement.expression.end,
+                            text: statement.expression.text
+                        }
+                    });
+                    end = end < statement.end ? statement.end : end;
+                }
+                if (directives)
+                    (prologues || (prologues = [])).push({ file: index, text: sourceFile.text.substring(0, end), directives: directives });
+            }
+            return prologues;
+        }
+        function emitShebangIfNeeded(sourceFileOrBundle) {
+            if (ts.isSourceFile(sourceFileOrBundle) || ts.isUnparsedSource(sourceFileOrBundle)) {
+                var shebang = ts.getShebang(sourceFileOrBundle.text);
+                if (shebang) {
+                    writeComment(shebang);
+                    writeLine();
+                    return true;
+                }
+            }
+            else {
+                for (var _a = 0, _b = sourceFileOrBundle.prepends; _a < _b.length; _a++) {
+                    var prepend = _b[_a];
+                    ts.Debug.assertNode(prepend, ts.isUnparsedSource);
+                    if (emitShebangIfNeeded(prepend)) {
+                        return true;
+                    }
+                }
+                for (var _c = 0, _d = sourceFileOrBundle.sourceFiles; _c < _d.length; _c++) {
+                    var sourceFile = _d[_c];
+                    if (emitShebangIfNeeded(sourceFile)) {
+                        return true;
+                    }
+                }
+            }
+        }
+        function emitNodeWithWriter(node, writer) {
+            if (!node)
+                return;
+            var savedWrite = write;
+            write = writer;
+            emit(node);
+            write = savedWrite;
+        }
+        function emitModifiers(node, modifiers) {
+            if (modifiers && modifiers.length) {
+                emitList(node, modifiers, 262656);
+                writeSpace();
+            }
+        }
+        function emitTypeAnnotation(node) {
+            if (node) {
+                writePunctuation(":");
+                writeSpace();
+                emit(node);
+            }
+        }
+        function emitInitializer(node, equalCommentStartPos, container) {
+            if (node) {
+                writeSpace();
+                emitTokenWithComment(62, equalCommentStartPos, writeOperator, container);
+                writeSpace();
+                emitExpression(node);
+            }
+        }
+        function emitNodeWithPrefix(prefix, prefixWriter, node, emit) {
+            if (node) {
+                prefixWriter(prefix);
+                emit(node);
+            }
+        }
+        function emitWithLeadingSpace(node) {
+            if (node) {
+                writeSpace();
+                emit(node);
+            }
+        }
+        function emitExpressionWithLeadingSpace(node) {
+            if (node) {
+                writeSpace();
+                emitExpression(node);
+            }
+        }
+        function emitWithTrailingSpace(node) {
+            if (node) {
+                emit(node);
+                writeSpace();
+            }
+        }
+        function emitEmbeddedStatement(parent, node) {
+            if (ts.isBlock(node) || ts.getEmitFlags(parent) & 1) {
+                writeSpace();
+                emit(node);
+            }
+            else {
+                writeLine();
+                increaseIndent();
+                if (ts.isEmptyStatement(node)) {
+                    pipelineEmit(5, node);
+                }
+                else {
+                    emit(node);
+                }
+                decreaseIndent();
+            }
+        }
+        function emitDecorators(parentNode, decorators) {
+            emitList(parentNode, decorators, 2146305);
+        }
+        function emitTypeArguments(parentNode, typeArguments) {
+            emitList(parentNode, typeArguments, 53776);
+        }
+        function emitTypeParameters(parentNode, typeParameters) {
+            if (ts.isFunctionLike(parentNode) && parentNode.typeArguments) {
+                return emitTypeArguments(parentNode, parentNode.typeArguments);
+            }
+            emitList(parentNode, typeParameters, 53776);
+        }
+        function emitParameters(parentNode, parameters) {
+            emitList(parentNode, parameters, 2576);
+        }
+        function canEmitSimpleArrowHead(parentNode, parameters) {
+            var parameter = ts.singleOrUndefined(parameters);
+            return parameter
+                && parameter.pos === parentNode.pos
+                && ts.isArrowFunction(parentNode)
+                && !parentNode.type
+                && !ts.some(parentNode.decorators)
+                && !ts.some(parentNode.modifiers)
+                && !ts.some(parentNode.typeParameters)
+                && !ts.some(parameter.decorators)
+                && !ts.some(parameter.modifiers)
+                && !parameter.dotDotDotToken
+                && !parameter.questionToken
+                && !parameter.type
+                && !parameter.initializer
+                && ts.isIdentifier(parameter.name);
+        }
+        function emitParametersForArrow(parentNode, parameters) {
+            if (canEmitSimpleArrowHead(parentNode, parameters)) {
+                emitList(parentNode, parameters, 2576 & ~2048);
+            }
+            else {
+                emitParameters(parentNode, parameters);
+            }
+        }
+        function emitParametersForIndexSignature(parentNode, parameters) {
+            emitList(parentNode, parameters, 8848);
+        }
+        function emitList(parentNode, children, format, start, count) {
+            emitNodeList(emit, parentNode, children, format, start, count);
+        }
+        function emitExpressionList(parentNode, children, format, start, count) {
+            emitNodeList(emitExpression, parentNode, children, format, start, count);
+        }
+        function writeDelimiter(format) {
+            switch (format & 60) {
+                case 0:
+                    break;
+                case 16:
+                    writePunctuation(",");
+                    break;
+                case 4:
+                    writeSpace();
+                    writePunctuation("|");
+                    break;
+                case 32:
+                    writeSpace();
+                    writePunctuation("*");
+                    writeSpace();
+                    break;
+                case 8:
+                    writeSpace();
+                    writePunctuation("&");
+                    break;
+            }
+        }
+        function emitNodeList(emit, parentNode, children, format, start, count) {
+            if (start === void 0) { start = 0; }
+            if (count === void 0) { count = children ? children.length - start : 0; }
+            var isUndefined = children === undefined;
+            if (isUndefined && format & 16384) {
+                return;
+            }
+            var isEmpty = children === undefined || start >= children.length || count === 0;
+            if (isEmpty && format & 32768) {
+                if (onBeforeEmitNodeArray) {
+                    onBeforeEmitNodeArray(children);
+                }
+                if (onAfterEmitNodeArray) {
+                    onAfterEmitNodeArray(children);
+                }
+                return;
+            }
+            if (format & 15360) {
+                writePunctuation(getOpeningBracket(format));
+                if (isEmpty && !isUndefined) {
+                    emitTrailingCommentsOfPosition(children.pos, true);
+                }
+            }
+            if (onBeforeEmitNodeArray) {
+                onBeforeEmitNodeArray(children);
+            }
+            if (isEmpty) {
+                if (format & 1 && !(preserveSourceNewlines && ts.rangeIsOnSingleLine(parentNode, currentSourceFile))) {
+                    writeLine();
+                }
+                else if (format & 256 && !(format & 524288)) {
+                    writeSpace();
+                }
+            }
+            else {
+                var mayEmitInterveningComments = (format & 262144) === 0;
+                var shouldEmitInterveningComments = mayEmitInterveningComments;
+                var leadingLineTerminatorCount = getLeadingLineTerminatorCount(parentNode, children, format);
+                if (leadingLineTerminatorCount) {
+                    writeLine(leadingLineTerminatorCount);
+                    shouldEmitInterveningComments = false;
+                }
+                else if (format & 256) {
+                    writeSpace();
+                }
+                if (format & 128) {
+                    increaseIndent();
+                }
+                var previousSibling = void 0;
+                var previousSourceFileTextKind = void 0;
+                var shouldDecreaseIndentAfterEmit = false;
+                for (var i = 0; i < count; i++) {
+                    var child = children[start + i];
+                    if (format & 32) {
+                        writeLine();
+                        writeDelimiter(format);
+                    }
+                    else if (previousSibling) {
+                        if (format & 60 && previousSibling.end !== parentNode.end) {
+                            emitLeadingCommentsOfPosition(previousSibling.end);
+                        }
+                        writeDelimiter(format);
+                        recordBundleFileInternalSectionEnd(previousSourceFileTextKind);
+                        var separatingLineTerminatorCount = getSeparatingLineTerminatorCount(previousSibling, child, format);
+                        if (separatingLineTerminatorCount > 0) {
+                            if ((format & (3 | 128)) === 0) {
+                                increaseIndent();
+                                shouldDecreaseIndentAfterEmit = true;
+                            }
+                            writeLine(separatingLineTerminatorCount);
+                            shouldEmitInterveningComments = false;
+                        }
+                        else if (previousSibling && format & 512) {
+                            writeSpace();
+                        }
+                    }
+                    previousSourceFileTextKind = recordBundleFileInternalSectionStart(child);
+                    if (shouldEmitInterveningComments) {
+                        if (emitTrailingCommentsOfPosition) {
+                            var commentRange = ts.getCommentRange(child);
+                            emitTrailingCommentsOfPosition(commentRange.pos);
+                        }
+                    }
+                    else {
+                        shouldEmitInterveningComments = mayEmitInterveningComments;
+                    }
+                    emit(child);
+                    if (shouldDecreaseIndentAfterEmit) {
+                        decreaseIndent();
+                        shouldDecreaseIndentAfterEmit = false;
+                    }
+                    previousSibling = child;
+                }
+                var hasTrailingComma = (format & 64) && children.hasTrailingComma;
+                if (format & 16 && hasTrailingComma) {
+                    writePunctuation(",");
+                }
+                if (previousSibling && format & 60 && previousSibling.end !== parentNode.end && !(ts.getEmitFlags(previousSibling) & 1024)) {
+                    emitLeadingCommentsOfPosition(previousSibling.end);
+                }
+                if (format & 128) {
+                    decreaseIndent();
+                }
+                recordBundleFileInternalSectionEnd(previousSourceFileTextKind);
+                var closingLineTerminatorCount = getClosingLineTerminatorCount(parentNode, children, format);
+                if (closingLineTerminatorCount) {
+                    writeLine(closingLineTerminatorCount);
+                }
+                else if (format & (2097152 | 256)) {
+                    writeSpace();
+                }
+            }
+            if (onAfterEmitNodeArray) {
+                onAfterEmitNodeArray(children);
+            }
+            if (format & 15360) {
+                if (isEmpty && !isUndefined) {
+                    emitLeadingCommentsOfPosition(children.end);
+                }
+                writePunctuation(getClosingBracket(format));
+            }
+        }
+        function writeLiteral(s) {
+            writer.writeLiteral(s);
+        }
+        function writeStringLiteral(s) {
+            writer.writeStringLiteral(s);
+        }
+        function writeBase(s) {
+            writer.write(s);
+        }
+        function writeSymbol(s, sym) {
+            writer.writeSymbol(s, sym);
+        }
+        function writePunctuation(s) {
+            writer.writePunctuation(s);
+        }
+        function writeTrailingSemicolon() {
+            writer.writeTrailingSemicolon(";");
+        }
+        function writeKeyword(s) {
+            writer.writeKeyword(s);
+        }
+        function writeOperator(s) {
+            writer.writeOperator(s);
+        }
+        function writeParameter(s) {
+            writer.writeParameter(s);
+        }
+        function writeComment(s) {
+            writer.writeComment(s);
+        }
+        function writeSpace() {
+            writer.writeSpace(" ");
+        }
+        function writeProperty(s) {
+            writer.writeProperty(s);
+        }
+        function writeLine(count) {
+            if (count === void 0) { count = 1; }
+            for (var i = 0; i < count; i++) {
+                writer.writeLine(i > 0);
+            }
+        }
+        function increaseIndent() {
+            writer.increaseIndent();
+        }
+        function decreaseIndent() {
+            writer.decreaseIndent();
+        }
+        function writeToken(token, pos, writer, contextNode) {
+            return !sourceMapsDisabled
+                ? emitTokenWithSourceMap(contextNode, token, writer, pos, writeTokenText)
+                : writeTokenText(token, writer, pos);
+        }
+        function writeTokenNode(node, writer) {
+            if (onBeforeEmitToken) {
+                onBeforeEmitToken(node);
+            }
+            writer(ts.tokenToString(node.kind));
+            if (onAfterEmitToken) {
+                onAfterEmitToken(node);
+            }
+        }
+        function writeTokenText(token, writer, pos) {
+            var tokenString = ts.tokenToString(token);
+            writer(tokenString);
+            return pos < 0 ? pos : pos + tokenString.length;
+        }
+        function writeLineOrSpace(node) {
+            if (ts.getEmitFlags(node) & 1) {
+                writeSpace();
+            }
+            else {
+                writeLine();
+            }
+        }
+        function writeLines(text) {
+            var lines = text.split(/\r\n?|\n/g);
+            var indentation = ts.guessIndentation(lines);
+            for (var _a = 0, lines_3 = lines; _a < lines_3.length; _a++) {
+                var lineText = lines_3[_a];
+                var line = indentation ? lineText.slice(indentation) : lineText;
+                if (line.length) {
+                    writeLine();
+                    write(line);
+                }
+            }
+        }
+        function writeLinesAndIndent(lineCount, writeSpaceIfNotIndenting) {
+            if (lineCount) {
+                increaseIndent();
+                writeLine(lineCount);
+            }
+            else if (writeSpaceIfNotIndenting) {
+                writeSpace();
+            }
+        }
+        function decreaseIndentIf(value1, value2) {
+            if (value1) {
+                decreaseIndent();
+            }
+            if (value2) {
+                decreaseIndent();
+            }
+        }
+        function getLeadingLineTerminatorCount(parentNode, children, format) {
+            if (format & 2 || preserveSourceNewlines) {
+                if (format & 65536) {
+                    return 1;
+                }
+                var firstChild_1 = children[0];
+                if (firstChild_1 === undefined) {
+                    return ts.rangeIsOnSingleLine(parentNode, currentSourceFile) ? 0 : 1;
+                }
+                if (firstChild_1.kind === 11) {
+                    return 0;
+                }
+                if (!ts.positionIsSynthesized(parentNode.pos) && !ts.nodeIsSynthesized(firstChild_1) && (!firstChild_1.parent || firstChild_1.parent === parentNode)) {
+                    if (preserveSourceNewlines) {
+                        return getEffectiveLines(function (includeComments) { return ts.getLinesBetweenPositionAndPrecedingNonWhitespaceCharacter(firstChild_1.pos, parentNode.pos, currentSourceFile, includeComments); });
+                    }
+                    return ts.rangeStartPositionsAreOnSameLine(parentNode, firstChild_1, currentSourceFile) ? 0 : 1;
+                }
+                if (synthesizedNodeStartsOnNewLine(firstChild_1, format)) {
+                    return 1;
+                }
+            }
+            return format & 1 ? 1 : 0;
+        }
+        function getSeparatingLineTerminatorCount(previousNode, nextNode, format) {
+            if (format & 2 || preserveSourceNewlines) {
+                if (previousNode === undefined || nextNode === undefined) {
+                    return 0;
+                }
+                if (nextNode.kind === 11) {
+                    return 0;
+                }
+                else if (!ts.nodeIsSynthesized(previousNode) && !ts.nodeIsSynthesized(nextNode) && previousNode.parent === nextNode.parent) {
+                    if (preserveSourceNewlines) {
+                        return getEffectiveLines(function (includeComments) { return ts.getLinesBetweenRangeEndAndRangeStart(previousNode, nextNode, currentSourceFile, includeComments); });
+                    }
+                    return ts.rangeEndIsOnSameLineAsRangeStart(previousNode, nextNode, currentSourceFile) ? 0 : 1;
+                }
+                else if (synthesizedNodeStartsOnNewLine(previousNode, format) || synthesizedNodeStartsOnNewLine(nextNode, format)) {
+                    return 1;
+                }
+            }
+            else if (ts.getStartsOnNewLine(nextNode)) {
+                return 1;
+            }
+            return format & 1 ? 1 : 0;
+        }
+        function getClosingLineTerminatorCount(parentNode, children, format) {
+            if (format & 2 || preserveSourceNewlines) {
+                if (format & 65536) {
+                    return 1;
+                }
+                var lastChild_1 = ts.lastOrUndefined(children);
+                if (lastChild_1 === undefined) {
+                    return ts.rangeIsOnSingleLine(parentNode, currentSourceFile) ? 0 : 1;
+                }
+                if (!ts.positionIsSynthesized(parentNode.pos) && !ts.nodeIsSynthesized(lastChild_1) && (!lastChild_1.parent || lastChild_1.parent === parentNode)) {
+                    if (preserveSourceNewlines) {
+                        return getEffectiveLines(function (includeComments) { return ts.getLinesBetweenPositionAndNextNonWhitespaceCharacter(lastChild_1.end, parentNode.end, currentSourceFile, includeComments); });
+                    }
+                    return ts.rangeEndPositionsAreOnSameLine(parentNode, lastChild_1, currentSourceFile) ? 0 : 1;
+                }
+                if (synthesizedNodeStartsOnNewLine(lastChild_1, format)) {
+                    return 1;
+                }
+            }
+            if (format & 1 && !(format & 131072)) {
+                return 1;
+            }
+            return 0;
+        }
+        function getEffectiveLines(getLineDifference) {
+            ts.Debug.assert(!!preserveSourceNewlines);
+            var lines = getLineDifference(true);
+            if (lines === 0) {
+                return getLineDifference(false);
+            }
+            return lines;
+        }
+        function writeLineSeparatorsAndIndentBefore(node, parent) {
+            var leadingNewlines = preserveSourceNewlines && getLeadingLineTerminatorCount(parent, [node], 0);
+            if (leadingNewlines) {
+                writeLinesAndIndent(leadingNewlines, false);
+            }
+            return !!leadingNewlines;
+        }
+        function writeLineSeparatorsAfter(node, parent) {
+            var trailingNewlines = preserveSourceNewlines && getClosingLineTerminatorCount(parent, [node], 0);
+            if (trailingNewlines) {
+                writeLine(trailingNewlines);
+            }
+        }
+        function synthesizedNodeStartsOnNewLine(node, format) {
+            if (ts.nodeIsSynthesized(node)) {
+                var startsOnNewLine = ts.getStartsOnNewLine(node);
+                if (startsOnNewLine === undefined) {
+                    return (format & 65536) !== 0;
+                }
+                return startsOnNewLine;
+            }
+            return (format & 65536) !== 0;
+        }
+        function getLinesBetweenNodes(parent, node1, node2) {
+            if (ts.getEmitFlags(parent) & 131072) {
+                return 0;
+            }
+            parent = skipSynthesizedParentheses(parent);
+            node1 = skipSynthesizedParentheses(node1);
+            node2 = skipSynthesizedParentheses(node2);
+            if (ts.getStartsOnNewLine(node2)) {
+                return 1;
+            }
+            if (!ts.nodeIsSynthesized(parent) && !ts.nodeIsSynthesized(node1) && !ts.nodeIsSynthesized(node2)) {
+                if (preserveSourceNewlines) {
+                    return getEffectiveLines(function (includeComments) { return ts.getLinesBetweenRangeEndAndRangeStart(node1, node2, currentSourceFile, includeComments); });
+                }
+                return ts.rangeEndIsOnSameLineAsRangeStart(node1, node2, currentSourceFile) ? 0 : 1;
+            }
+            return 0;
+        }
+        function isEmptyBlock(block) {
+            return block.statements.length === 0
+                && ts.rangeEndIsOnSameLineAsRangeStart(block, block, currentSourceFile);
+        }
+        function skipSynthesizedParentheses(node) {
+            while (node.kind === 200 && ts.nodeIsSynthesized(node)) {
+                node = node.expression;
+            }
+            return node;
+        }
+        function getTextOfNode(node, includeTrivia) {
+            if (ts.isGeneratedIdentifier(node)) {
+                return generateName(node);
+            }
+            else if ((ts.isIdentifier(node) || ts.isPrivateIdentifier(node)) && (ts.nodeIsSynthesized(node) || !node.parent || !currentSourceFile || (node.parent && currentSourceFile && ts.getSourceFileOfNode(node) !== ts.getOriginalNode(currentSourceFile)))) {
+                return ts.idText(node);
+            }
+            else if (node.kind === 10 && node.textSourceNode) {
+                return getTextOfNode(node.textSourceNode, includeTrivia);
+            }
+            else if (ts.isLiteralExpression(node) && (ts.nodeIsSynthesized(node) || !node.parent)) {
+                return node.text;
+            }
+            return ts.getSourceTextOfNodeFromSourceFile(currentSourceFile, node, includeTrivia);
+        }
+        function getLiteralTextOfNode(node, neverAsciiEscape, jsxAttributeEscape) {
+            if (node.kind === 10 && node.textSourceNode) {
+                var textSourceNode = node.textSourceNode;
+                if (ts.isIdentifier(textSourceNode)) {
+                    return jsxAttributeEscape ? "\"" + ts.escapeJsxAttributeString(getTextOfNode(textSourceNode)) + "\"" :
+                        neverAsciiEscape || (ts.getEmitFlags(node) & 16777216) ? "\"" + ts.escapeString(getTextOfNode(textSourceNode)) + "\"" :
+                            "\"" + ts.escapeNonAsciiString(getTextOfNode(textSourceNode)) + "\"";
+                }
+                else {
+                    return getLiteralTextOfNode(textSourceNode, neverAsciiEscape, jsxAttributeEscape);
+                }
+            }
+            return ts.getLiteralText(node, currentSourceFile, neverAsciiEscape, jsxAttributeEscape);
+        }
+        function pushNameGenerationScope(node) {
+            if (node && ts.getEmitFlags(node) & 524288) {
+                return;
+            }
+            tempFlagsStack.push(tempFlags);
+            tempFlags = 0;
+            reservedNamesStack.push(reservedNames);
+        }
+        function popNameGenerationScope(node) {
+            if (node && ts.getEmitFlags(node) & 524288) {
+                return;
+            }
+            tempFlags = tempFlagsStack.pop();
+            reservedNames = reservedNamesStack.pop();
+        }
+        function reserveNameInNestedScopes(name) {
+            if (!reservedNames || reservedNames === ts.lastOrUndefined(reservedNamesStack)) {
+                reservedNames = ts.createMap();
+            }
+            reservedNames.set(name, true);
+        }
+        function generateNames(node) {
+            if (!node)
+                return;
+            switch (node.kind) {
+                case 223:
+                    ts.forEach(node.statements, generateNames);
+                    break;
+                case 238:
+                case 236:
+                case 228:
+                case 229:
+                    generateNames(node.statement);
+                    break;
+                case 227:
+                    generateNames(node.thenStatement);
+                    generateNames(node.elseStatement);
+                    break;
+                case 230:
+                case 232:
+                case 231:
+                    generateNames(node.initializer);
+                    generateNames(node.statement);
+                    break;
+                case 237:
+                    generateNames(node.caseBlock);
+                    break;
+                case 251:
+                    ts.forEach(node.clauses, generateNames);
+                    break;
+                case 277:
+                case 278:
+                    ts.forEach(node.statements, generateNames);
+                    break;
+                case 240:
+                    generateNames(node.tryBlock);
+                    generateNames(node.catchClause);
+                    generateNames(node.finallyBlock);
+                    break;
+                case 280:
+                    generateNames(node.variableDeclaration);
+                    generateNames(node.block);
+                    break;
+                case 225:
+                    generateNames(node.declarationList);
+                    break;
+                case 243:
+                    ts.forEach(node.declarations, generateNames);
+                    break;
+                case 242:
+                case 156:
+                case 191:
+                case 245:
+                    generateNameIfNeeded(node.name);
+                    break;
+                case 244:
+                    generateNameIfNeeded(node.name);
+                    if (ts.getEmitFlags(node) & 524288) {
+                        ts.forEach(node.parameters, generateNames);
+                        generateNames(node.body);
+                    }
+                    break;
+                case 189:
+                case 190:
+                    ts.forEach(node.elements, generateNames);
+                    break;
+                case 254:
+                    generateNames(node.importClause);
+                    break;
+                case 255:
+                    generateNameIfNeeded(node.name);
+                    generateNames(node.namedBindings);
+                    break;
+                case 256:
+                    generateNameIfNeeded(node.name);
+                    break;
+                case 262:
+                    generateNameIfNeeded(node.name);
+                    break;
+                case 257:
+                    ts.forEach(node.elements, generateNames);
+                    break;
+                case 258:
+                    generateNameIfNeeded(node.propertyName || node.name);
+                    break;
+            }
+        }
+        function generateMemberNames(node) {
+            if (!node)
+                return;
+            switch (node.kind) {
+                case 281:
+                case 282:
+                case 159:
+                case 161:
+                case 163:
+                case 164:
+                    generateNameIfNeeded(node.name);
+                    break;
+            }
+        }
+        function generateNameIfNeeded(name) {
+            if (name) {
+                if (ts.isGeneratedIdentifier(name)) {
+                    generateName(name);
+                }
+                else if (ts.isBindingPattern(name)) {
+                    generateNames(name);
+                }
+            }
+        }
+        function generateName(name) {
+            if ((name.autoGenerateFlags & 7) === 4) {
+                return generateNameCached(getNodeForGeneratedName(name), name.autoGenerateFlags);
+            }
+            else {
+                var autoGenerateId = name.autoGenerateId;
+                return autoGeneratedIdToGeneratedName[autoGenerateId] || (autoGeneratedIdToGeneratedName[autoGenerateId] = makeName(name));
+            }
+        }
+        function generateNameCached(node, flags) {
+            var nodeId = ts.getNodeId(node);
+            return nodeIdToGeneratedName[nodeId] || (nodeIdToGeneratedName[nodeId] = generateNameForNode(node, flags));
+        }
+        function isUniqueName(name) {
+            return isFileLevelUniqueName(name)
+                && !generatedNames.has(name)
+                && !(reservedNames && reservedNames.has(name));
+        }
+        function isFileLevelUniqueName(name) {
+            return currentSourceFile ? ts.isFileLevelUniqueName(currentSourceFile, name, hasGlobalName) : true;
+        }
+        function isUniqueLocalName(name, container) {
+            for (var node = container; ts.isNodeDescendantOf(node, container); node = node.nextContainer) {
+                if (node.locals) {
+                    var local = node.locals.get(ts.escapeLeadingUnderscores(name));
+                    if (local && local.flags & (111551 | 1048576 | 2097152)) {
+                        return false;
+                    }
+                }
+            }
+            return true;
+        }
+        function makeTempVariableName(flags, reservedInNestedScopes) {
+            if (flags && !(tempFlags & flags)) {
+                var name = flags === 268435456 ? "_i" : "_n";
+                if (isUniqueName(name)) {
+                    tempFlags |= flags;
+                    if (reservedInNestedScopes) {
+                        reserveNameInNestedScopes(name);
+                    }
+                    return name;
+                }
+            }
+            while (true) {
+                var count = tempFlags & 268435455;
+                tempFlags++;
+                if (count !== 8 && count !== 13) {
+                    var name = count < 26
+                        ? "_" + String.fromCharCode(97 + count)
+                        : "_" + (count - 26);
+                    if (isUniqueName(name)) {
+                        if (reservedInNestedScopes) {
+                            reserveNameInNestedScopes(name);
+                        }
+                        return name;
+                    }
+                }
+            }
+        }
+        function makeUniqueName(baseName, checkFn, optimistic, scoped) {
+            if (checkFn === void 0) { checkFn = isUniqueName; }
+            if (optimistic) {
+                if (checkFn(baseName)) {
+                    if (scoped) {
+                        reserveNameInNestedScopes(baseName);
+                    }
+                    else {
+                        generatedNames.set(baseName, true);
+                    }
+                    return baseName;
+                }
+            }
+            if (baseName.charCodeAt(baseName.length - 1) !== 95) {
+                baseName += "_";
+            }
+            var i = 1;
+            while (true) {
+                var generatedName = baseName + i;
+                if (checkFn(generatedName)) {
+                    if (scoped) {
+                        reserveNameInNestedScopes(generatedName);
+                    }
+                    else {
+                        generatedNames.set(generatedName, true);
+                    }
+                    return generatedName;
+                }
+                i++;
+            }
+        }
+        function makeFileLevelOptimisticUniqueName(name) {
+            return makeUniqueName(name, isFileLevelUniqueName, true);
+        }
+        function generateNameForModuleOrEnum(node) {
+            var name = getTextOfNode(node.name);
+            return isUniqueLocalName(name, node) ? name : makeUniqueName(name);
+        }
+        function generateNameForImportOrExportDeclaration(node) {
+            var expr = ts.getExternalModuleName(node);
+            var baseName = ts.isStringLiteral(expr) ?
+                ts.makeIdentifierFromModuleName(expr.text) : "module";
+            return makeUniqueName(baseName);
+        }
+        function generateNameForExportDefault() {
+            return makeUniqueName("default");
+        }
+        function generateNameForClassExpression() {
+            return makeUniqueName("class");
+        }
+        function generateNameForMethodOrAccessor(node) {
+            if (ts.isIdentifier(node.name)) {
+                return generateNameCached(node.name);
+            }
+            return makeTempVariableName(0);
+        }
+        function generateNameForNode(node, flags) {
+            switch (node.kind) {
+                case 75:
+                    return makeUniqueName(getTextOfNode(node), isUniqueName, !!(flags & 16), !!(flags & 8));
+                case 249:
+                case 248:
+                    return generateNameForModuleOrEnum(node);
+                case 254:
+                case 260:
+                    return generateNameForImportOrExportDeclaration(node);
+                case 244:
+                case 245:
+                case 259:
+                    return generateNameForExportDefault();
+                case 214:
+                    return generateNameForClassExpression();
+                case 161:
+                case 163:
+                case 164:
+                    return generateNameForMethodOrAccessor(node);
+                case 154:
+                    return makeTempVariableName(0, true);
+                default:
+                    return makeTempVariableName(0);
+            }
+        }
+        function makeName(name) {
+            switch (name.autoGenerateFlags & 7) {
+                case 1:
+                    return makeTempVariableName(0, !!(name.autoGenerateFlags & 8));
+                case 2:
+                    return makeTempVariableName(268435456, !!(name.autoGenerateFlags & 8));
+                case 3:
+                    return makeUniqueName(ts.idText(name), (name.autoGenerateFlags & 32) ? isFileLevelUniqueName : isUniqueName, !!(name.autoGenerateFlags & 16), !!(name.autoGenerateFlags & 8));
+            }
+            return ts.Debug.fail("Unsupported GeneratedIdentifierKind.");
+        }
+        function getNodeForGeneratedName(name) {
+            var autoGenerateId = name.autoGenerateId;
+            var node = name;
+            var original = node.original;
+            while (original) {
+                node = original;
+                if (ts.isIdentifier(node)
+                    && !!(node.autoGenerateFlags & 4)
+                    && node.autoGenerateId !== autoGenerateId) {
+                    break;
+                }
+                original = node.original;
+            }
+            return node;
+        }
+        function pipelineEmitWithComments(hint, node) {
+            ts.Debug.assert(lastNode === node || lastSubstitution === node);
+            enterComment();
+            hasWrittenComment = false;
+            var emitFlags = ts.getEmitFlags(node);
+            var _a = ts.getCommentRange(node), pos = _a.pos, end = _a.end;
+            var isEmittedNode = node.kind !== 325;
+            var skipLeadingComments = pos < 0 || (emitFlags & 512) !== 0 || node.kind === 11;
+            var skipTrailingComments = end < 0 || (emitFlags & 1024) !== 0 || node.kind === 11;
+            var savedContainerPos = containerPos;
+            var savedContainerEnd = containerEnd;
+            var savedDeclarationListContainerEnd = declarationListContainerEnd;
+            if ((pos > 0 || end > 0) && pos !== end) {
+                if (!skipLeadingComments) {
+                    emitLeadingComments(pos, isEmittedNode);
+                }
+                if (!skipLeadingComments || (pos >= 0 && (emitFlags & 512) !== 0)) {
+                    containerPos = pos;
+                }
+                if (!skipTrailingComments || (end >= 0 && (emitFlags & 1024) !== 0)) {
+                    containerEnd = end;
+                    if (node.kind === 243) {
+                        declarationListContainerEnd = end;
+                    }
+                }
+            }
+            ts.forEach(ts.getSyntheticLeadingComments(node), emitLeadingSynthesizedComment);
+            exitComment();
+            var pipelinePhase = getNextPipelinePhase(2, hint, node);
+            if (emitFlags & 2048) {
+                commentsDisabled = true;
+                pipelinePhase(hint, node);
+                commentsDisabled = false;
+            }
+            else {
+                pipelinePhase(hint, node);
+            }
+            enterComment();
+            ts.forEach(ts.getSyntheticTrailingComments(node), emitTrailingSynthesizedComment);
+            if ((pos > 0 || end > 0) && pos !== end) {
+                containerPos = savedContainerPos;
+                containerEnd = savedContainerEnd;
+                declarationListContainerEnd = savedDeclarationListContainerEnd;
+                if (!skipTrailingComments && isEmittedNode) {
+                    emitTrailingComments(end);
+                }
+            }
+            exitComment();
+            ts.Debug.assert(lastNode === node || lastSubstitution === node);
+        }
+        function emitLeadingSynthesizedComment(comment) {
+            if (comment.kind === 2) {
+                writer.writeLine();
+            }
+            writeSynthesizedComment(comment);
+            if (comment.hasTrailingNewLine || comment.kind === 2) {
+                writer.writeLine();
+            }
+            else {
+                writer.writeSpace(" ");
+            }
+        }
+        function emitTrailingSynthesizedComment(comment) {
+            if (!writer.isAtStartOfLine()) {
+                writer.writeSpace(" ");
+            }
+            writeSynthesizedComment(comment);
+            if (comment.hasTrailingNewLine) {
+                writer.writeLine();
+            }
+        }
+        function writeSynthesizedComment(comment) {
+            var text = formatSynthesizedComment(comment);
+            var lineMap = comment.kind === 3 ? ts.computeLineStarts(text) : undefined;
+            ts.writeCommentRange(text, lineMap, writer, 0, text.length, newLine);
+        }
+        function formatSynthesizedComment(comment) {
+            return comment.kind === 3
+                ? "/*" + comment.text + "*/"
+                : "//" + comment.text;
+        }
+        function emitBodyWithDetachedComments(node, detachedRange, emitCallback) {
+            enterComment();
+            var pos = detachedRange.pos, end = detachedRange.end;
+            var emitFlags = ts.getEmitFlags(node);
+            var skipLeadingComments = pos < 0 || (emitFlags & 512) !== 0;
+            var skipTrailingComments = commentsDisabled || end < 0 || (emitFlags & 1024) !== 0;
+            if (!skipLeadingComments) {
+                emitDetachedCommentsAndUpdateCommentsInfo(detachedRange);
+            }
+            exitComment();
+            if (emitFlags & 2048 && !commentsDisabled) {
+                commentsDisabled = true;
+                emitCallback(node);
+                commentsDisabled = false;
+            }
+            else {
+                emitCallback(node);
+            }
+            enterComment();
+            if (!skipTrailingComments) {
+                emitLeadingComments(detachedRange.end, true);
+                if (hasWrittenComment && !writer.isAtStartOfLine()) {
+                    writer.writeLine();
+                }
+            }
+            exitComment();
+        }
+        function emitLeadingComments(pos, isEmittedNode) {
+            hasWrittenComment = false;
+            if (isEmittedNode) {
+                forEachLeadingCommentToEmit(pos, emitLeadingComment);
+            }
+            else if (pos === 0) {
+                forEachLeadingCommentToEmit(pos, emitTripleSlashLeadingComment);
+            }
+        }
+        function emitTripleSlashLeadingComment(commentPos, commentEnd, kind, hasTrailingNewLine, rangePos) {
+            if (isTripleSlashComment(commentPos, commentEnd)) {
+                emitLeadingComment(commentPos, commentEnd, kind, hasTrailingNewLine, rangePos);
+            }
+        }
+        function shouldWriteComment(text, pos) {
+            if (printerOptions.onlyPrintJsDocStyle) {
+                return (ts.isJSDocLikeText(text, pos) || ts.isPinnedComment(text, pos));
+            }
+            return true;
+        }
+        function emitLeadingComment(commentPos, commentEnd, kind, hasTrailingNewLine, rangePos) {
+            if (!shouldWriteComment(currentSourceFile.text, commentPos))
+                return;
+            if (!hasWrittenComment) {
+                ts.emitNewLineBeforeLeadingCommentOfPosition(getCurrentLineMap(), writer, rangePos, commentPos);
+                hasWrittenComment = true;
+            }
+            emitPos(commentPos);
+            ts.writeCommentRange(currentSourceFile.text, getCurrentLineMap(), writer, commentPos, commentEnd, newLine);
+            emitPos(commentEnd);
+            if (hasTrailingNewLine) {
+                writer.writeLine();
+            }
+            else if (kind === 3) {
+                writer.writeSpace(" ");
+            }
+        }
+        function emitLeadingCommentsOfPosition(pos) {
+            if (commentsDisabled || pos === -1) {
+                return;
+            }
+            emitLeadingComments(pos, true);
+        }
+        function emitTrailingComments(pos) {
+            forEachTrailingCommentToEmit(pos, emitTrailingComment);
+        }
+        function emitTrailingComment(commentPos, commentEnd, _kind, hasTrailingNewLine) {
+            if (!shouldWriteComment(currentSourceFile.text, commentPos))
+                return;
+            if (!writer.isAtStartOfLine()) {
+                writer.writeSpace(" ");
+            }
+            emitPos(commentPos);
+            ts.writeCommentRange(currentSourceFile.text, getCurrentLineMap(), writer, commentPos, commentEnd, newLine);
+            emitPos(commentEnd);
+            if (hasTrailingNewLine) {
+                writer.writeLine();
+            }
+        }
+        function emitTrailingCommentsOfPosition(pos, prefixSpace) {
+            if (commentsDisabled) {
+                return;
+            }
+            enterComment();
+            forEachTrailingCommentToEmit(pos, prefixSpace ? emitTrailingComment : emitTrailingCommentOfPosition);
+            exitComment();
+        }
+        function emitTrailingCommentOfPosition(commentPos, commentEnd, _kind, hasTrailingNewLine) {
+            emitPos(commentPos);
+            ts.writeCommentRange(currentSourceFile.text, getCurrentLineMap(), writer, commentPos, commentEnd, newLine);
+            emitPos(commentEnd);
+            if (hasTrailingNewLine) {
+                writer.writeLine();
+            }
+            else {
+                writer.writeSpace(" ");
+            }
+        }
+        function forEachLeadingCommentToEmit(pos, cb) {
+            if (currentSourceFile && (containerPos === -1 || pos !== containerPos)) {
+                if (hasDetachedComments(pos)) {
+                    forEachLeadingCommentWithoutDetachedComments(cb);
+                }
+                else {
+                    ts.forEachLeadingCommentRange(currentSourceFile.text, pos, cb, pos);
+                }
+            }
+        }
+        function forEachTrailingCommentToEmit(end, cb) {
+            if (currentSourceFile && (containerEnd === -1 || (end !== containerEnd && end !== declarationListContainerEnd))) {
+                ts.forEachTrailingCommentRange(currentSourceFile.text, end, cb);
+            }
+        }
+        function hasDetachedComments(pos) {
+            return detachedCommentsInfo !== undefined && ts.last(detachedCommentsInfo).nodePos === pos;
+        }
+        function forEachLeadingCommentWithoutDetachedComments(cb) {
+            var pos = ts.last(detachedCommentsInfo).detachedCommentEndPos;
+            if (detachedCommentsInfo.length - 1) {
+                detachedCommentsInfo.pop();
+            }
+            else {
+                detachedCommentsInfo = undefined;
+            }
+            ts.forEachLeadingCommentRange(currentSourceFile.text, pos, cb, pos);
+        }
+        function emitDetachedCommentsAndUpdateCommentsInfo(range) {
+            var currentDetachedCommentInfo = ts.emitDetachedComments(currentSourceFile.text, getCurrentLineMap(), writer, emitComment, range, newLine, commentsDisabled);
+            if (currentDetachedCommentInfo) {
+                if (detachedCommentsInfo) {
+                    detachedCommentsInfo.push(currentDetachedCommentInfo);
+                }
+                else {
+                    detachedCommentsInfo = [currentDetachedCommentInfo];
+                }
+            }
+        }
+        function emitComment(text, lineMap, writer, commentPos, commentEnd, newLine) {
+            if (!shouldWriteComment(currentSourceFile.text, commentPos))
+                return;
+            emitPos(commentPos);
+            ts.writeCommentRange(text, lineMap, writer, commentPos, commentEnd, newLine);
+            emitPos(commentEnd);
+        }
+        function isTripleSlashComment(commentPos, commentEnd) {
+            return ts.isRecognizedTripleSlashComment(currentSourceFile.text, commentPos, commentEnd);
+        }
+        function getParsedSourceMap(node) {
+            if (node.parsedSourceMap === undefined && node.sourceMapText !== undefined) {
+                node.parsedSourceMap = ts.tryParseRawSourceMap(node.sourceMapText) || false;
+            }
+            return node.parsedSourceMap || undefined;
+        }
+        function pipelineEmitWithSourceMap(hint, node) {
+            ts.Debug.assert(lastNode === node || lastSubstitution === node);
+            var pipelinePhase = getNextPipelinePhase(3, hint, node);
+            if (ts.isUnparsedSource(node) || ts.isUnparsedPrepend(node)) {
+                pipelinePhase(hint, node);
+            }
+            else if (ts.isUnparsedNode(node)) {
+                var parsed = getParsedSourceMap(node.parent);
+                if (parsed && sourceMapGenerator) {
+                    sourceMapGenerator.appendSourceMap(writer.getLine(), writer.getColumn(), parsed, node.parent.sourceMapPath, node.parent.getLineAndCharacterOfPosition(node.pos), node.parent.getLineAndCharacterOfPosition(node.end));
+                }
+                pipelinePhase(hint, node);
+            }
+            else {
+                var _a = ts.getSourceMapRange(node), pos = _a.pos, end = _a.end, _b = _a.source, source = _b === void 0 ? sourceMapSource : _b;
+                var emitFlags = ts.getEmitFlags(node);
+                if (node.kind !== 325
+                    && (emitFlags & 16) === 0
+                    && pos >= 0) {
+                    emitSourcePos(source, skipSourceTrivia(source, pos));
+                }
+                if (emitFlags & 64) {
+                    sourceMapsDisabled = true;
+                    pipelinePhase(hint, node);
+                    sourceMapsDisabled = false;
+                }
+                else {
+                    pipelinePhase(hint, node);
+                }
+                if (node.kind !== 325
+                    && (emitFlags & 32) === 0
+                    && end >= 0) {
+                    emitSourcePos(source, end);
+                }
+            }
+            ts.Debug.assert(lastNode === node || lastSubstitution === node);
+        }
+        function skipSourceTrivia(source, pos) {
+            return source.skipTrivia ? source.skipTrivia(pos) : ts.skipTrivia(source.text, pos);
+        }
+        function emitPos(pos) {
+            if (sourceMapsDisabled || ts.positionIsSynthesized(pos) || isJsonSourceMapSource(sourceMapSource)) {
+                return;
+            }
+            var _a = ts.getLineAndCharacterOfPosition(sourceMapSource, pos), sourceLine = _a.line, sourceCharacter = _a.character;
+            sourceMapGenerator.addMapping(writer.getLine(), writer.getColumn(), sourceMapSourceIndex, sourceLine, sourceCharacter, undefined);
+        }
+        function emitSourcePos(source, pos) {
+            if (source !== sourceMapSource) {
+                var savedSourceMapSource = sourceMapSource;
+                setSourceMapSource(source);
+                emitPos(pos);
+                setSourceMapSource(savedSourceMapSource);
+            }
+            else {
+                emitPos(pos);
+            }
+        }
+        function emitTokenWithSourceMap(node, token, writer, tokenPos, emitCallback) {
+            if (sourceMapsDisabled || node && ts.isInJsonFile(node)) {
+                return emitCallback(token, writer, tokenPos);
+            }
+            var emitNode = node && node.emitNode;
+            var emitFlags = emitNode && emitNode.flags || 0;
+            var range = emitNode && emitNode.tokenSourceMapRanges && emitNode.tokenSourceMapRanges[token];
+            var source = range && range.source || sourceMapSource;
+            tokenPos = skipSourceTrivia(source, range ? range.pos : tokenPos);
+            if ((emitFlags & 128) === 0 && tokenPos >= 0) {
+                emitSourcePos(source, tokenPos);
+            }
+            tokenPos = emitCallback(token, writer, tokenPos);
+            if (range)
+                tokenPos = range.end;
+            if ((emitFlags & 256) === 0 && tokenPos >= 0) {
+                emitSourcePos(source, tokenPos);
+            }
+            return tokenPos;
+        }
+        function setSourceMapSource(source) {
+            if (sourceMapsDisabled) {
+                return;
+            }
+            sourceMapSource = source;
+            if (isJsonSourceMapSource(source)) {
+                return;
+            }
+            sourceMapSourceIndex = sourceMapGenerator.addSource(source.fileName);
+            if (printerOptions.inlineSources) {
+                sourceMapGenerator.setSourceContent(sourceMapSourceIndex, source.text);
+            }
+        }
+        function isJsonSourceMapSource(sourceFile) {
+            return ts.fileExtensionIs(sourceFile.fileName, ".json");
+        }
+    }
+    ts.createPrinter = createPrinter;
+    function createBracketsMap() {
+        var brackets = [];
+        brackets[1024] = ["{", "}"];
+        brackets[2048] = ["(", ")"];
+        brackets[4096] = ["<", ">"];
+        brackets[8192] = ["[", "]"];
+        return brackets;
+    }
+    function getOpeningBracket(format) {
+        return brackets[format & 15360][0];
+    }
+    function getClosingBracket(format) {
+        return brackets[format & 15360][1];
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function createCachedDirectoryStructureHost(host, currentDirectory, useCaseSensitiveFileNames) {
+        if (!host.getDirectories || !host.readDirectory) {
+            return undefined;
+        }
+        var cachedReadDirectoryResult = ts.createMap();
+        var getCanonicalFileName = ts.createGetCanonicalFileName(useCaseSensitiveFileNames);
+        return {
+            useCaseSensitiveFileNames: useCaseSensitiveFileNames,
+            fileExists: fileExists,
+            readFile: function (path, encoding) { return host.readFile(path, encoding); },
+            directoryExists: host.directoryExists && directoryExists,
+            getDirectories: getDirectories,
+            readDirectory: readDirectory,
+            createDirectory: host.createDirectory && createDirectory,
+            writeFile: host.writeFile && writeFile,
+            addOrDeleteFileOrDirectory: addOrDeleteFileOrDirectory,
+            addOrDeleteFile: addOrDeleteFile,
+            clearCache: clearCache,
+            realpath: host.realpath && realpath
+        };
+        function toPath(fileName) {
+            return ts.toPath(fileName, currentDirectory, getCanonicalFileName);
+        }
+        function getCachedFileSystemEntries(rootDirPath) {
+            return cachedReadDirectoryResult.get(ts.ensureTrailingDirectorySeparator(rootDirPath));
+        }
+        function getCachedFileSystemEntriesForBaseDir(path) {
+            return getCachedFileSystemEntries(ts.getDirectoryPath(path));
+        }
+        function getBaseNameOfFileName(fileName) {
+            return ts.getBaseFileName(ts.normalizePath(fileName));
+        }
+        function createCachedFileSystemEntries(rootDir, rootDirPath) {
+            var resultFromHost = {
+                files: ts.map(host.readDirectory(rootDir, undefined, undefined, ["*.*"]), getBaseNameOfFileName) || [],
+                directories: host.getDirectories(rootDir) || []
+            };
+            cachedReadDirectoryResult.set(ts.ensureTrailingDirectorySeparator(rootDirPath), resultFromHost);
+            return resultFromHost;
+        }
+        function tryReadDirectory(rootDir, rootDirPath) {
+            rootDirPath = ts.ensureTrailingDirectorySeparator(rootDirPath);
+            var cachedResult = getCachedFileSystemEntries(rootDirPath);
+            if (cachedResult) {
+                return cachedResult;
+            }
+            try {
+                return createCachedFileSystemEntries(rootDir, rootDirPath);
+            }
+            catch (_e) {
+                ts.Debug.assert(!cachedReadDirectoryResult.has(ts.ensureTrailingDirectorySeparator(rootDirPath)));
+                return undefined;
+            }
+        }
+        function fileNameEqual(name1, name2) {
+            return getCanonicalFileName(name1) === getCanonicalFileName(name2);
+        }
+        function hasEntry(entries, name) {
+            return ts.some(entries, function (file) { return fileNameEqual(file, name); });
+        }
+        function updateFileSystemEntry(entries, baseName, isValid) {
+            if (hasEntry(entries, baseName)) {
+                if (!isValid) {
+                    return ts.filterMutate(entries, function (entry) { return !fileNameEqual(entry, baseName); });
+                }
+            }
+            else if (isValid) {
+                return entries.push(baseName);
+            }
+        }
+        function writeFile(fileName, data, writeByteOrderMark) {
+            var path = toPath(fileName);
+            var result = getCachedFileSystemEntriesForBaseDir(path);
+            if (result) {
+                updateFilesOfFileSystemEntry(result, getBaseNameOfFileName(fileName), true);
+            }
+            return host.writeFile(fileName, data, writeByteOrderMark);
+        }
+        function fileExists(fileName) {
+            var path = toPath(fileName);
+            var result = getCachedFileSystemEntriesForBaseDir(path);
+            return result && hasEntry(result.files, getBaseNameOfFileName(fileName)) ||
+                host.fileExists(fileName);
+        }
+        function directoryExists(dirPath) {
+            var path = toPath(dirPath);
+            return cachedReadDirectoryResult.has(ts.ensureTrailingDirectorySeparator(path)) || host.directoryExists(dirPath);
+        }
+        function createDirectory(dirPath) {
+            var path = toPath(dirPath);
+            var result = getCachedFileSystemEntriesForBaseDir(path);
+            var baseFileName = getBaseNameOfFileName(dirPath);
+            if (result) {
+                updateFileSystemEntry(result.directories, baseFileName, true);
+            }
+            host.createDirectory(dirPath);
+        }
+        function getDirectories(rootDir) {
+            var rootDirPath = toPath(rootDir);
+            var result = tryReadDirectory(rootDir, rootDirPath);
+            if (result) {
+                return result.directories.slice();
+            }
+            return host.getDirectories(rootDir);
+        }
+        function readDirectory(rootDir, extensions, excludes, includes, depth) {
+            var rootDirPath = toPath(rootDir);
+            var result = tryReadDirectory(rootDir, rootDirPath);
+            if (result) {
+                return ts.matchFiles(rootDir, extensions, excludes, includes, useCaseSensitiveFileNames, currentDirectory, depth, getFileSystemEntries, realpath);
+            }
+            return host.readDirectory(rootDir, extensions, excludes, includes, depth);
+            function getFileSystemEntries(dir) {
+                var path = toPath(dir);
+                if (path === rootDirPath) {
+                    return result;
+                }
+                return tryReadDirectory(dir, path) || ts.emptyFileSystemEntries;
+            }
+        }
+        function realpath(s) {
+            return host.realpath ? host.realpath(s) : s;
+        }
+        function addOrDeleteFileOrDirectory(fileOrDirectory, fileOrDirectoryPath) {
+            var existingResult = getCachedFileSystemEntries(fileOrDirectoryPath);
+            if (existingResult) {
+                clearCache();
+                return undefined;
+            }
+            var parentResult = getCachedFileSystemEntriesForBaseDir(fileOrDirectoryPath);
+            if (!parentResult) {
+                return undefined;
+            }
+            if (!host.directoryExists) {
+                clearCache();
+                return undefined;
+            }
+            var baseName = getBaseNameOfFileName(fileOrDirectory);
+            var fsQueryResult = {
+                fileExists: host.fileExists(fileOrDirectoryPath),
+                directoryExists: host.directoryExists(fileOrDirectoryPath)
+            };
+            if (fsQueryResult.directoryExists || hasEntry(parentResult.directories, baseName)) {
+                clearCache();
+            }
+            else {
+                updateFilesOfFileSystemEntry(parentResult, baseName, fsQueryResult.fileExists);
+            }
+            return fsQueryResult;
+        }
+        function addOrDeleteFile(fileName, filePath, eventKind) {
+            if (eventKind === ts.FileWatcherEventKind.Changed) {
+                return;
+            }
+            var parentResult = getCachedFileSystemEntriesForBaseDir(filePath);
+            if (parentResult) {
+                updateFilesOfFileSystemEntry(parentResult, getBaseNameOfFileName(fileName), eventKind === ts.FileWatcherEventKind.Created);
+            }
+        }
+        function updateFilesOfFileSystemEntry(parentResult, baseName, fileExists) {
+            updateFileSystemEntry(parentResult.files, baseName, fileExists);
+        }
+        function clearCache() {
+            cachedReadDirectoryResult.clear();
+        }
+    }
+    ts.createCachedDirectoryStructureHost = createCachedDirectoryStructureHost;
+    var ConfigFileProgramReloadLevel;
+    (function (ConfigFileProgramReloadLevel) {
+        ConfigFileProgramReloadLevel[ConfigFileProgramReloadLevel["None"] = 0] = "None";
+        ConfigFileProgramReloadLevel[ConfigFileProgramReloadLevel["Partial"] = 1] = "Partial";
+        ConfigFileProgramReloadLevel[ConfigFileProgramReloadLevel["Full"] = 2] = "Full";
+    })(ConfigFileProgramReloadLevel = ts.ConfigFileProgramReloadLevel || (ts.ConfigFileProgramReloadLevel = {}));
+    function updateMissingFilePathsWatch(program, missingFileWatches, createMissingFileWatch) {
+        var missingFilePaths = program.getMissingFilePaths();
+        var newMissingFilePathMap = ts.arrayToSet(missingFilePaths);
+        ts.mutateMap(missingFileWatches, newMissingFilePathMap, {
+            createNewValue: createMissingFileWatch,
+            onDeleteValue: ts.closeFileWatcher
+        });
+    }
+    ts.updateMissingFilePathsWatch = updateMissingFilePathsWatch;
+    function updateWatchingWildcardDirectories(existingWatchedForWildcards, wildcardDirectories, watchDirectory) {
+        ts.mutateMap(existingWatchedForWildcards, wildcardDirectories, {
+            createNewValue: createWildcardDirectoryWatcher,
+            onDeleteValue: closeFileWatcherOf,
+            onExistingValue: updateWildcardDirectoryWatcher
+        });
+        function createWildcardDirectoryWatcher(directory, flags) {
+            return {
+                watcher: watchDirectory(directory, flags),
+                flags: flags
+            };
+        }
+        function updateWildcardDirectoryWatcher(existingWatcher, flags, directory) {
+            if (existingWatcher.flags === flags) {
+                return;
+            }
+            existingWatcher.watcher.close();
+            existingWatchedForWildcards.set(directory, createWildcardDirectoryWatcher(directory, flags));
+        }
+    }
+    ts.updateWatchingWildcardDirectories = updateWatchingWildcardDirectories;
+    function isEmittedFileOfProgram(program, file) {
+        if (!program) {
+            return false;
+        }
+        return program.isEmittedFile(file);
+    }
+    ts.isEmittedFileOfProgram = isEmittedFileOfProgram;
+    var WatchLogLevel;
+    (function (WatchLogLevel) {
+        WatchLogLevel[WatchLogLevel["None"] = 0] = "None";
+        WatchLogLevel[WatchLogLevel["TriggerOnly"] = 1] = "TriggerOnly";
+        WatchLogLevel[WatchLogLevel["Verbose"] = 2] = "Verbose";
+    })(WatchLogLevel = ts.WatchLogLevel || (ts.WatchLogLevel = {}));
+    function getWatchFactory(watchLogLevel, log, getDetailWatchInfo) {
+        return getWatchFactoryWith(watchLogLevel, log, getDetailWatchInfo, watchFile, watchDirectory);
+    }
+    ts.getWatchFactory = getWatchFactory;
+    function getWatchFactoryWith(watchLogLevel, log, getDetailWatchInfo, watchFile, watchDirectory) {
+        var createFileWatcher = getCreateFileWatcher(watchLogLevel, watchFile);
+        var createFilePathWatcher = watchLogLevel === WatchLogLevel.None ? watchFilePath : createFileWatcher;
+        var createDirectoryWatcher = getCreateFileWatcher(watchLogLevel, watchDirectory);
+        if (watchLogLevel === WatchLogLevel.Verbose && ts.sysLog === ts.noop) {
+            ts.setSysLog(function (s) { return log(s); });
+        }
+        return {
+            watchFile: function (host, file, callback, pollingInterval, options, detailInfo1, detailInfo2) {
+                return createFileWatcher(host, file, callback, pollingInterval, options, undefined, detailInfo1, detailInfo2, watchFile, log, "FileWatcher", getDetailWatchInfo);
+            },
+            watchFilePath: function (host, file, callback, pollingInterval, options, path, detailInfo1, detailInfo2) {
+                return createFilePathWatcher(host, file, callback, pollingInterval, options, path, detailInfo1, detailInfo2, watchFile, log, "FileWatcher", getDetailWatchInfo);
+            },
+            watchDirectory: function (host, directory, callback, flags, options, detailInfo1, detailInfo2) {
+                return createDirectoryWatcher(host, directory, callback, flags, options, undefined, detailInfo1, detailInfo2, watchDirectory, log, "DirectoryWatcher", getDetailWatchInfo);
+            }
+        };
+    }
+    function watchFile(host, file, callback, pollingInterval, options) {
+        return host.watchFile(file, callback, pollingInterval, options);
+    }
+    function watchFilePath(host, file, callback, pollingInterval, options, path) {
+        return watchFile(host, file, function (fileName, eventKind) { return callback(fileName, eventKind, path); }, pollingInterval, options);
+    }
+    function watchDirectory(host, directory, callback, flags, options) {
+        return host.watchDirectory(directory, callback, (flags & 1) !== 0, options);
+    }
+    function getCreateFileWatcher(watchLogLevel, addWatch) {
+        switch (watchLogLevel) {
+            case WatchLogLevel.None:
+                return addWatch;
+            case WatchLogLevel.TriggerOnly:
+                return createFileWatcherWithTriggerLogging;
+            case WatchLogLevel.Verbose:
+                return addWatch === watchDirectory ? createDirectoryWatcherWithLogging : createFileWatcherWithLogging;
+        }
+    }
+    function createFileWatcherWithLogging(host, file, cb, flags, options, passThrough, detailInfo1, detailInfo2, addWatch, log, watchCaption, getDetailWatchInfo) {
+        log(watchCaption + ":: Added:: " + getWatchInfo(file, flags, options, detailInfo1, detailInfo2, getDetailWatchInfo));
+        var watcher = createFileWatcherWithTriggerLogging(host, file, cb, flags, options, passThrough, detailInfo1, detailInfo2, addWatch, log, watchCaption, getDetailWatchInfo);
+        return {
+            close: function () {
+                log(watchCaption + ":: Close:: " + getWatchInfo(file, flags, options, detailInfo1, detailInfo2, getDetailWatchInfo));
+                watcher.close();
+            }
+        };
+    }
+    function createDirectoryWatcherWithLogging(host, file, cb, flags, options, passThrough, detailInfo1, detailInfo2, addWatch, log, watchCaption, getDetailWatchInfo) {
+        var watchInfo = watchCaption + ":: Added:: " + getWatchInfo(file, flags, options, detailInfo1, detailInfo2, getDetailWatchInfo);
+        log(watchInfo);
+        var start = ts.timestamp();
+        var watcher = createFileWatcherWithTriggerLogging(host, file, cb, flags, options, passThrough, detailInfo1, detailInfo2, addWatch, log, watchCaption, getDetailWatchInfo);
+        var elapsed = ts.timestamp() - start;
+        log("Elapsed:: " + elapsed + "ms " + watchInfo);
+        return {
+            close: function () {
+                var watchInfo = watchCaption + ":: Close:: " + getWatchInfo(file, flags, options, detailInfo1, detailInfo2, getDetailWatchInfo);
+                log(watchInfo);
+                var start = ts.timestamp();
+                watcher.close();
+                var elapsed = ts.timestamp() - start;
+                log("Elapsed:: " + elapsed + "ms " + watchInfo);
+            }
+        };
+    }
+    function createFileWatcherWithTriggerLogging(host, file, cb, flags, options, passThrough, detailInfo1, detailInfo2, addWatch, log, watchCaption, getDetailWatchInfo) {
+        return addWatch(host, file, function (fileName, cbOptional) {
+            var triggerredInfo = watchCaption + ":: Triggered with " + fileName + " " + (cbOptional !== undefined ? cbOptional : "") + ":: " + getWatchInfo(file, flags, options, detailInfo1, detailInfo2, getDetailWatchInfo);
+            log(triggerredInfo);
+            var start = ts.timestamp();
+            cb(fileName, cbOptional, passThrough);
+            var elapsed = ts.timestamp() - start;
+            log("Elapsed:: " + elapsed + "ms " + triggerredInfo);
+        }, flags, options);
+    }
+    function getFallbackOptions(options) {
+        var fallbackPolling = options === null || options === void 0 ? void 0 : options.fallbackPolling;
+        return {
+            watchFile: fallbackPolling !== undefined ?
+                fallbackPolling :
+                ts.WatchFileKind.PriorityPollingInterval
+        };
+    }
+    ts.getFallbackOptions = getFallbackOptions;
+    function getWatchInfo(file, flags, options, detailInfo1, detailInfo2, getDetailWatchInfo) {
+        return "WatchInfo: " + file + " " + flags + " " + JSON.stringify(options) + " " + (getDetailWatchInfo ? getDetailWatchInfo(detailInfo1, detailInfo2) : detailInfo2 === undefined ? detailInfo1 : detailInfo1 + " " + detailInfo2);
+    }
+    function closeFileWatcherOf(objWithWatcher) {
+        objWithWatcher.watcher.close();
+    }
+    ts.closeFileWatcherOf = closeFileWatcherOf;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function findConfigFile(searchPath, fileExists, configName) {
+        if (configName === void 0) { configName = "tsconfig.json"; }
+        return ts.forEachAncestorDirectory(searchPath, function (ancestor) {
+            var fileName = ts.combinePaths(ancestor, configName);
+            return fileExists(fileName) ? fileName : undefined;
+        });
+    }
+    ts.findConfigFile = findConfigFile;
+    function resolveTripleslashReference(moduleName, containingFile) {
+        var basePath = ts.getDirectoryPath(containingFile);
+        var referencedFileName = ts.isRootedDiskPath(moduleName) ? moduleName : ts.combinePaths(basePath, moduleName);
+        return ts.normalizePath(referencedFileName);
+    }
+    ts.resolveTripleslashReference = resolveTripleslashReference;
+    function computeCommonSourceDirectoryOfFilenames(fileNames, currentDirectory, getCanonicalFileName) {
+        var commonPathComponents;
+        var failed = ts.forEach(fileNames, function (sourceFile) {
+            var sourcePathComponents = ts.getNormalizedPathComponents(sourceFile, currentDirectory);
+            sourcePathComponents.pop();
+            if (!commonPathComponents) {
+                commonPathComponents = sourcePathComponents;
+                return;
+            }
+            var n = Math.min(commonPathComponents.length, sourcePathComponents.length);
+            for (var i = 0; i < n; i++) {
+                if (getCanonicalFileName(commonPathComponents[i]) !== getCanonicalFileName(sourcePathComponents[i])) {
+                    if (i === 0) {
+                        return true;
+                    }
+                    commonPathComponents.length = i;
+                    break;
+                }
+            }
+            if (sourcePathComponents.length < commonPathComponents.length) {
+                commonPathComponents.length = sourcePathComponents.length;
+            }
+        });
+        if (failed) {
+            return "";
+        }
+        if (!commonPathComponents) {
+            return currentDirectory;
+        }
+        return ts.getPathFromPathComponents(commonPathComponents);
+    }
+    ts.computeCommonSourceDirectoryOfFilenames = computeCommonSourceDirectoryOfFilenames;
+    function createCompilerHost(options, setParentNodes) {
+        return createCompilerHostWorker(options, setParentNodes);
+    }
+    ts.createCompilerHost = createCompilerHost;
+    function createCompilerHostWorker(options, setParentNodes, system) {
+        if (system === void 0) { system = ts.sys; }
+        var existingDirectories = ts.createMap();
+        var getCanonicalFileName = ts.createGetCanonicalFileName(system.useCaseSensitiveFileNames);
+        function getSourceFile(fileName, languageVersion, onError) {
+            var text;
+            try {
+                ts.performance.mark("beforeIORead");
+                text = compilerHost.readFile(fileName);
+                ts.performance.mark("afterIORead");
+                ts.performance.measure("I/O Read", "beforeIORead", "afterIORead");
+            }
+            catch (e) {
+                if (onError) {
+                    onError(e.message);
+                }
+                text = "";
+            }
+            return text !== undefined ? ts.createSourceFile(fileName, text, languageVersion, setParentNodes) : undefined;
+        }
+        function directoryExists(directoryPath) {
+            if (existingDirectories.has(directoryPath)) {
+                return true;
+            }
+            if ((compilerHost.directoryExists || system.directoryExists)(directoryPath)) {
+                existingDirectories.set(directoryPath, true);
+                return true;
+            }
+            return false;
+        }
+        function writeFile(fileName, data, writeByteOrderMark, onError) {
+            try {
+                ts.performance.mark("beforeIOWrite");
+                ts.writeFileEnsuringDirectories(fileName, data, writeByteOrderMark, function (path, data, writeByteOrderMark) { return writeFileWorker(path, data, writeByteOrderMark); }, function (path) { return (compilerHost.createDirectory || system.createDirectory)(path); }, function (path) { return directoryExists(path); });
+                ts.performance.mark("afterIOWrite");
+                ts.performance.measure("I/O Write", "beforeIOWrite", "afterIOWrite");
+            }
+            catch (e) {
+                if (onError) {
+                    onError(e.message);
+                }
+            }
+        }
+        var outputFingerprints;
+        function writeFileWorker(fileName, data, writeByteOrderMark) {
+            if (!ts.isWatchSet(options) || !system.createHash || !system.getModifiedTime) {
+                system.writeFile(fileName, data, writeByteOrderMark);
+                return;
+            }
+            if (!outputFingerprints) {
+                outputFingerprints = ts.createMap();
+            }
+            var hash = system.createHash(data);
+            var mtimeBefore = system.getModifiedTime(fileName);
+            if (mtimeBefore) {
+                var fingerprint = outputFingerprints.get(fileName);
+                if (fingerprint &&
+                    fingerprint.byteOrderMark === writeByteOrderMark &&
+                    fingerprint.hash === hash &&
+                    fingerprint.mtime.getTime() === mtimeBefore.getTime()) {
+                    return;
+                }
+            }
+            system.writeFile(fileName, data, writeByteOrderMark);
+            var mtimeAfter = system.getModifiedTime(fileName) || ts.missingFileModifiedTime;
+            outputFingerprints.set(fileName, {
+                hash: hash,
+                byteOrderMark: writeByteOrderMark,
+                mtime: mtimeAfter
+            });
+        }
+        function getDefaultLibLocation() {
+            return ts.getDirectoryPath(ts.normalizePath(system.getExecutingFilePath()));
+        }
+        var newLine = ts.getNewLineCharacter(options, function () { return system.newLine; });
+        var realpath = system.realpath && (function (path) { return system.realpath(path); });
+        var compilerHost = {
+            getSourceFile: getSourceFile,
+            getDefaultLibLocation: getDefaultLibLocation,
+            getDefaultLibFileName: function (options) { return ts.combinePaths(getDefaultLibLocation(), ts.getDefaultLibFileName(options)); },
+            writeFile: writeFile,
+            getCurrentDirectory: ts.memoize(function () { return system.getCurrentDirectory(); }),
+            useCaseSensitiveFileNames: function () { return system.useCaseSensitiveFileNames; },
+            getCanonicalFileName: getCanonicalFileName,
+            getNewLine: function () { return newLine; },
+            fileExists: function (fileName) { return system.fileExists(fileName); },
+            readFile: function (fileName) { return system.readFile(fileName); },
+            trace: function (s) { return system.write(s + newLine); },
+            directoryExists: function (directoryName) { return system.directoryExists(directoryName); },
+            getEnvironmentVariable: function (name) { return system.getEnvironmentVariable ? system.getEnvironmentVariable(name) : ""; },
+            getDirectories: function (path) { return system.getDirectories(path); },
+            realpath: realpath,
+            readDirectory: function (path, extensions, include, exclude, depth) { return system.readDirectory(path, extensions, include, exclude, depth); },
+            createDirectory: function (d) { return system.createDirectory(d); },
+            createHash: ts.maybeBind(system, system.createHash)
+        };
+        return compilerHost;
+    }
+    ts.createCompilerHostWorker = createCompilerHostWorker;
+    function changeCompilerHostLikeToUseCache(host, toPath, getSourceFile) {
+        var originalReadFile = host.readFile;
+        var originalFileExists = host.fileExists;
+        var originalDirectoryExists = host.directoryExists;
+        var originalCreateDirectory = host.createDirectory;
+        var originalWriteFile = host.writeFile;
+        var readFileCache = ts.createMap();
+        var fileExistsCache = ts.createMap();
+        var directoryExistsCache = ts.createMap();
+        var sourceFileCache = ts.createMap();
+        var readFileWithCache = function (fileName) {
+            var key = toPath(fileName);
+            var value = readFileCache.get(key);
+            if (value !== undefined)
+                return value !== false ? value : undefined;
+            return setReadFileCache(key, fileName);
+        };
+        var setReadFileCache = function (key, fileName) {
+            var newValue = originalReadFile.call(host, fileName);
+            readFileCache.set(key, newValue !== undefined ? newValue : false);
+            return newValue;
+        };
+        host.readFile = function (fileName) {
+            var key = toPath(fileName);
+            var value = readFileCache.get(key);
+            if (value !== undefined)
+                return value !== false ? value : undefined;
+            if (!ts.fileExtensionIs(fileName, ".json") && !ts.isBuildInfoFile(fileName)) {
+                return originalReadFile.call(host, fileName);
+            }
+            return setReadFileCache(key, fileName);
+        };
+        var getSourceFileWithCache = getSourceFile ? function (fileName, languageVersion, onError, shouldCreateNewSourceFile) {
+            var key = toPath(fileName);
+            var value = sourceFileCache.get(key);
+            if (value)
+                return value;
+            var sourceFile = getSourceFile(fileName, languageVersion, onError, shouldCreateNewSourceFile);
+            if (sourceFile && (ts.isDeclarationFileName(fileName) || ts.fileExtensionIs(fileName, ".json"))) {
+                sourceFileCache.set(key, sourceFile);
+            }
+            return sourceFile;
+        } : undefined;
+        host.fileExists = function (fileName) {
+            var key = toPath(fileName);
+            var value = fileExistsCache.get(key);
+            if (value !== undefined)
+                return value;
+            var newValue = originalFileExists.call(host, fileName);
+            fileExistsCache.set(key, !!newValue);
+            return newValue;
+        };
+        if (originalWriteFile) {
+            host.writeFile = function (fileName, data, writeByteOrderMark, onError, sourceFiles) {
+                var key = toPath(fileName);
+                fileExistsCache.delete(key);
+                var value = readFileCache.get(key);
+                if (value !== undefined && value !== data) {
+                    readFileCache.delete(key);
+                    sourceFileCache.delete(key);
+                }
+                else if (getSourceFileWithCache) {
+                    var sourceFile = sourceFileCache.get(key);
+                    if (sourceFile && sourceFile.text !== data) {
+                        sourceFileCache.delete(key);
+                    }
+                }
+                originalWriteFile.call(host, fileName, data, writeByteOrderMark, onError, sourceFiles);
+            };
+        }
+        if (originalDirectoryExists && originalCreateDirectory) {
+            host.directoryExists = function (directory) {
+                var key = toPath(directory);
+                var value = directoryExistsCache.get(key);
+                if (value !== undefined)
+                    return value;
+                var newValue = originalDirectoryExists.call(host, directory);
+                directoryExistsCache.set(key, !!newValue);
+                return newValue;
+            };
+            host.createDirectory = function (directory) {
+                var key = toPath(directory);
+                directoryExistsCache.delete(key);
+                originalCreateDirectory.call(host, directory);
+            };
+        }
+        return {
+            originalReadFile: originalReadFile,
+            originalFileExists: originalFileExists,
+            originalDirectoryExists: originalDirectoryExists,
+            originalCreateDirectory: originalCreateDirectory,
+            originalWriteFile: originalWriteFile,
+            getSourceFileWithCache: getSourceFileWithCache,
+            readFileWithCache: readFileWithCache
+        };
+    }
+    ts.changeCompilerHostLikeToUseCache = changeCompilerHostLikeToUseCache;
+    function getPreEmitDiagnostics(program, sourceFile, cancellationToken) {
+        var diagnostics;
+        diagnostics = ts.addRange(diagnostics, program.getConfigFileParsingDiagnostics());
+        diagnostics = ts.addRange(diagnostics, program.getOptionsDiagnostics(cancellationToken));
+        diagnostics = ts.addRange(diagnostics, program.getSyntacticDiagnostics(sourceFile, cancellationToken));
+        diagnostics = ts.addRange(diagnostics, program.getGlobalDiagnostics(cancellationToken));
+        diagnostics = ts.addRange(diagnostics, program.getSemanticDiagnostics(sourceFile, cancellationToken));
+        if (ts.getEmitDeclarations(program.getCompilerOptions())) {
+            diagnostics = ts.addRange(diagnostics, program.getDeclarationDiagnostics(sourceFile, cancellationToken));
+        }
+        return ts.sortAndDeduplicateDiagnostics(diagnostics || ts.emptyArray);
+    }
+    ts.getPreEmitDiagnostics = getPreEmitDiagnostics;
+    function formatDiagnostics(diagnostics, host) {
+        var output = "";
+        for (var _i = 0, diagnostics_2 = diagnostics; _i < diagnostics_2.length; _i++) {
+            var diagnostic = diagnostics_2[_i];
+            output += formatDiagnostic(diagnostic, host);
+        }
+        return output;
+    }
+    ts.formatDiagnostics = formatDiagnostics;
+    function formatDiagnostic(diagnostic, host) {
+        var errorMessage = ts.diagnosticCategoryName(diagnostic) + " TS" + diagnostic.code + ": " + flattenDiagnosticMessageText(diagnostic.messageText, host.getNewLine()) + host.getNewLine();
+        if (diagnostic.file) {
+            var _a = ts.getLineAndCharacterOfPosition(diagnostic.file, diagnostic.start), line = _a.line, character = _a.character;
+            var fileName = diagnostic.file.fileName;
+            var relativeFileName = ts.convertToRelativePath(fileName, host.getCurrentDirectory(), function (fileName) { return host.getCanonicalFileName(fileName); });
+            return relativeFileName + "(" + (line + 1) + "," + (character + 1) + "): " + errorMessage;
+        }
+        return errorMessage;
+    }
+    ts.formatDiagnostic = formatDiagnostic;
+    var ForegroundColorEscapeSequences;
+    (function (ForegroundColorEscapeSequences) {
+        ForegroundColorEscapeSequences["Grey"] = "\u001B[90m";
+        ForegroundColorEscapeSequences["Red"] = "\u001B[91m";
+        ForegroundColorEscapeSequences["Yellow"] = "\u001B[93m";
+        ForegroundColorEscapeSequences["Blue"] = "\u001B[94m";
+        ForegroundColorEscapeSequences["Cyan"] = "\u001B[96m";
+    })(ForegroundColorEscapeSequences = ts.ForegroundColorEscapeSequences || (ts.ForegroundColorEscapeSequences = {}));
+    var gutterStyleSequence = "\u001b[7m";
+    var gutterSeparator = " ";
+    var resetEscapeSequence = "\u001b[0m";
+    var ellipsis = "...";
+    var halfIndent = "  ";
+    var indent = "    ";
+    function getCategoryFormat(category) {
+        switch (category) {
+            case ts.DiagnosticCategory.Error: return ForegroundColorEscapeSequences.Red;
+            case ts.DiagnosticCategory.Warning: return ForegroundColorEscapeSequences.Yellow;
+            case ts.DiagnosticCategory.Suggestion: return ts.Debug.fail("Should never get an Info diagnostic on the command line.");
+            case ts.DiagnosticCategory.Message: return ForegroundColorEscapeSequences.Blue;
+        }
+    }
+    function formatColorAndReset(text, formatStyle) {
+        return formatStyle + text + resetEscapeSequence;
+    }
+    ts.formatColorAndReset = formatColorAndReset;
+    function formatCodeSpan(file, start, length, indent, squiggleColor, host) {
+        var _a = ts.getLineAndCharacterOfPosition(file, start), firstLine = _a.line, firstLineChar = _a.character;
+        var _b = ts.getLineAndCharacterOfPosition(file, start + length), lastLine = _b.line, lastLineChar = _b.character;
+        var lastLineInFile = ts.getLineAndCharacterOfPosition(file, file.text.length).line;
+        var hasMoreThanFiveLines = (lastLine - firstLine) >= 4;
+        var gutterWidth = (lastLine + 1 + "").length;
+        if (hasMoreThanFiveLines) {
+            gutterWidth = Math.max(ellipsis.length, gutterWidth);
+        }
+        var context = "";
+        for (var i = firstLine; i <= lastLine; i++) {
+            context += host.getNewLine();
+            if (hasMoreThanFiveLines && firstLine + 1 < i && i < lastLine - 1) {
+                context += indent + formatColorAndReset(ts.padLeft(ellipsis, gutterWidth), gutterStyleSequence) + gutterSeparator + host.getNewLine();
+                i = lastLine - 1;
+            }
+            var lineStart = ts.getPositionOfLineAndCharacter(file, i, 0);
+            var lineEnd = i < lastLineInFile ? ts.getPositionOfLineAndCharacter(file, i + 1, 0) : file.text.length;
+            var lineContent = file.text.slice(lineStart, lineEnd);
+            lineContent = lineContent.replace(/\s+$/g, "");
+            lineContent = lineContent.replace("\t", " ");
+            context += indent + formatColorAndReset(ts.padLeft(i + 1 + "", gutterWidth), gutterStyleSequence) + gutterSeparator;
+            context += lineContent + host.getNewLine();
+            context += indent + formatColorAndReset(ts.padLeft("", gutterWidth), gutterStyleSequence) + gutterSeparator;
+            context += squiggleColor;
+            if (i === firstLine) {
+                var lastCharForLine = i === lastLine ? lastLineChar : undefined;
+                context += lineContent.slice(0, firstLineChar).replace(/\S/g, " ");
+                context += lineContent.slice(firstLineChar, lastCharForLine).replace(/./g, "~");
+            }
+            else if (i === lastLine) {
+                context += lineContent.slice(0, lastLineChar).replace(/./g, "~");
+            }
+            else {
+                context += lineContent.replace(/./g, "~");
+            }
+            context += resetEscapeSequence;
+        }
+        return context;
+    }
+    function formatLocation(file, start, host, color) {
+        if (color === void 0) { color = formatColorAndReset; }
+        var _a = ts.getLineAndCharacterOfPosition(file, start), firstLine = _a.line, firstLineChar = _a.character;
+        var relativeFileName = host ? ts.convertToRelativePath(file.fileName, host.getCurrentDirectory(), function (fileName) { return host.getCanonicalFileName(fileName); }) : file.fileName;
+        var output = "";
+        output += color(relativeFileName, ForegroundColorEscapeSequences.Cyan);
+        output += ":";
+        output += color("" + (firstLine + 1), ForegroundColorEscapeSequences.Yellow);
+        output += ":";
+        output += color("" + (firstLineChar + 1), ForegroundColorEscapeSequences.Yellow);
+        return output;
+    }
+    ts.formatLocation = formatLocation;
+    function formatDiagnosticsWithColorAndContext(diagnostics, host) {
+        var output = "";
+        for (var _i = 0, diagnostics_3 = diagnostics; _i < diagnostics_3.length; _i++) {
+            var diagnostic = diagnostics_3[_i];
+            if (diagnostic.file) {
+                var file = diagnostic.file, start = diagnostic.start;
+                output += formatLocation(file, start, host);
+                output += " - ";
+            }
+            output += formatColorAndReset(ts.diagnosticCategoryName(diagnostic), getCategoryFormat(diagnostic.category));
+            output += formatColorAndReset(" TS" + diagnostic.code + ": ", ForegroundColorEscapeSequences.Grey);
+            output += flattenDiagnosticMessageText(diagnostic.messageText, host.getNewLine());
+            if (diagnostic.file) {
+                output += host.getNewLine();
+                output += formatCodeSpan(diagnostic.file, diagnostic.start, diagnostic.length, "", getCategoryFormat(diagnostic.category), host);
+                if (diagnostic.relatedInformation) {
+                    output += host.getNewLine();
+                    for (var _a = 0, _b = diagnostic.relatedInformation; _a < _b.length; _a++) {
+                        var _c = _b[_a], file = _c.file, start = _c.start, length_8 = _c.length, messageText = _c.messageText;
+                        if (file) {
+                            output += host.getNewLine();
+                            output += halfIndent + formatLocation(file, start, host);
+                            output += formatCodeSpan(file, start, length_8, indent, ForegroundColorEscapeSequences.Cyan, host);
+                        }
+                        output += host.getNewLine();
+                        output += indent + flattenDiagnosticMessageText(messageText, host.getNewLine());
+                    }
+                }
+            }
+            output += host.getNewLine();
+        }
+        return output;
+    }
+    ts.formatDiagnosticsWithColorAndContext = formatDiagnosticsWithColorAndContext;
+    function flattenDiagnosticMessageText(diag, newLine, indent) {
+        if (indent === void 0) { indent = 0; }
+        if (ts.isString(diag)) {
+            return diag;
+        }
+        else if (diag === undefined) {
+            return "";
+        }
+        var result = "";
+        if (indent) {
+            result += newLine;
+            for (var i = 0; i < indent; i++) {
+                result += "  ";
+            }
+        }
+        result += diag.messageText;
+        indent++;
+        if (diag.next) {
+            for (var _i = 0, _a = diag.next; _i < _a.length; _i++) {
+                var kid = _a[_i];
+                result += flattenDiagnosticMessageText(kid, newLine, indent);
+            }
+        }
+        return result;
+    }
+    ts.flattenDiagnosticMessageText = flattenDiagnosticMessageText;
+    function loadWithLocalCache(names, containingFile, redirectedReference, loader) {
+        if (names.length === 0) {
+            return [];
+        }
+        var resolutions = [];
+        var cache = ts.createMap();
+        for (var _i = 0, names_2 = names; _i < names_2.length; _i++) {
+            var name = names_2[_i];
+            var result = void 0;
+            if (cache.has(name)) {
+                result = cache.get(name);
+            }
+            else {
+                cache.set(name, result = loader(name, containingFile, redirectedReference));
+            }
+            resolutions.push(result);
+        }
+        return resolutions;
+    }
+    ts.loadWithLocalCache = loadWithLocalCache;
+    ts.inferredTypesContainingFile = "__inferred type names__.ts";
+    function isProgramUptoDate(program, rootFileNames, newOptions, getSourceVersion, fileExists, hasInvalidatedResolution, hasChangedAutomaticTypeDirectiveNames, projectReferences) {
+        if (!program || hasChangedAutomaticTypeDirectiveNames) {
+            return false;
+        }
+        if (!ts.arrayIsEqualTo(program.getRootFileNames(), rootFileNames)) {
+            return false;
+        }
+        var seenResolvedRefs;
+        if (!ts.arrayIsEqualTo(program.getProjectReferences(), projectReferences, projectReferenceUptoDate)) {
+            return false;
+        }
+        if (program.getSourceFiles().some(sourceFileNotUptoDate)) {
+            return false;
+        }
+        if (program.getMissingFilePaths().some(fileExists)) {
+            return false;
+        }
+        var currentOptions = program.getCompilerOptions();
+        if (!ts.compareDataObjects(currentOptions, newOptions)) {
+            return false;
+        }
+        if (currentOptions.configFile && newOptions.configFile) {
+            return currentOptions.configFile.text === newOptions.configFile.text;
+        }
+        return true;
+        function sourceFileNotUptoDate(sourceFile) {
+            return !sourceFileVersionUptoDate(sourceFile) ||
+                hasInvalidatedResolution(sourceFile.path);
+        }
+        function sourceFileVersionUptoDate(sourceFile) {
+            return sourceFile.version === getSourceVersion(sourceFile.resolvedPath, sourceFile.fileName);
+        }
+        function projectReferenceUptoDate(oldRef, newRef, index) {
+            if (!ts.projectReferenceIsEqualTo(oldRef, newRef)) {
+                return false;
+            }
+            return resolvedProjectReferenceUptoDate(program.getResolvedProjectReferences()[index], oldRef);
+        }
+        function resolvedProjectReferenceUptoDate(oldResolvedRef, oldRef) {
+            if (oldResolvedRef) {
+                if (ts.contains(seenResolvedRefs, oldResolvedRef)) {
+                    return true;
+                }
+                if (!sourceFileVersionUptoDate(oldResolvedRef.sourceFile)) {
+                    return false;
+                }
+                (seenResolvedRefs || (seenResolvedRefs = [])).push(oldResolvedRef);
+                return !ts.forEach(oldResolvedRef.references, function (childResolvedRef, index) {
+                    return !resolvedProjectReferenceUptoDate(childResolvedRef, oldResolvedRef.commandLine.projectReferences[index]);
+                });
+            }
+            return !fileExists(resolveProjectReferencePath(oldRef));
+        }
+    }
+    ts.isProgramUptoDate = isProgramUptoDate;
+    function getConfigFileParsingDiagnostics(configFileParseResult) {
+        return configFileParseResult.options.configFile ? __spreadArrays(configFileParseResult.options.configFile.parseDiagnostics, configFileParseResult.errors) :
+            configFileParseResult.errors;
+    }
+    ts.getConfigFileParsingDiagnostics = getConfigFileParsingDiagnostics;
+    function shouldProgramCreateNewSourceFiles(program, newOptions) {
+        if (!program)
+            return false;
+        var oldOptions = program.getCompilerOptions();
+        return !!ts.sourceFileAffectingCompilerOptions.some(function (option) {
+            return !ts.isJsonEqual(ts.getCompilerOptionValue(oldOptions, option), ts.getCompilerOptionValue(newOptions, option));
+        });
+    }
+    function createCreateProgramOptions(rootNames, options, host, oldProgram, configFileParsingDiagnostics) {
+        return {
+            rootNames: rootNames,
+            options: options,
+            host: host,
+            oldProgram: oldProgram,
+            configFileParsingDiagnostics: configFileParsingDiagnostics
+        };
+    }
+    function createProgram(rootNamesOrOptions, _options, _host, _oldProgram, _configFileParsingDiagnostics) {
+        var _a;
+        var createProgramOptions = ts.isArray(rootNamesOrOptions) ? createCreateProgramOptions(rootNamesOrOptions, _options, _host, _oldProgram, _configFileParsingDiagnostics) : rootNamesOrOptions;
+        var rootNames = createProgramOptions.rootNames, options = createProgramOptions.options, configFileParsingDiagnostics = createProgramOptions.configFileParsingDiagnostics, projectReferences = createProgramOptions.projectReferences;
+        var oldProgram = createProgramOptions.oldProgram;
+        var processingDefaultLibFiles;
+        var processingOtherFiles;
+        var files;
+        var symlinks;
+        var commonSourceDirectory;
+        var diagnosticsProducingTypeChecker;
+        var noDiagnosticsTypeChecker;
+        var classifiableNames;
+        var ambientModuleNameToUnmodifiedFileName = ts.createMap();
+        var refFileMap;
+        var cachedBindAndCheckDiagnosticsForFile = {};
+        var cachedDeclarationDiagnosticsForFile = {};
+        var resolvedTypeReferenceDirectives = ts.createMap();
+        var fileProcessingDiagnostics = ts.createDiagnosticCollection();
+        var maxNodeModuleJsDepth = typeof options.maxNodeModuleJsDepth === "number" ? options.maxNodeModuleJsDepth : 0;
+        var currentNodeModulesDepth = 0;
+        var modulesWithElidedImports = ts.createMap();
+        var sourceFilesFoundSearchingNodeModules = ts.createMap();
+        ts.performance.mark("beforeProgram");
+        var host = createProgramOptions.host || createCompilerHost(options);
+        var configParsingHost = parseConfigHostFromCompilerHostLike(host);
+        var skipDefaultLib = options.noLib;
+        var getDefaultLibraryFileName = ts.memoize(function () { return host.getDefaultLibFileName(options); });
+        var defaultLibraryPath = host.getDefaultLibLocation ? host.getDefaultLibLocation() : ts.getDirectoryPath(getDefaultLibraryFileName());
+        var programDiagnostics = ts.createDiagnosticCollection();
+        var currentDirectory = host.getCurrentDirectory();
+        var supportedExtensions = ts.getSupportedExtensions(options);
+        var supportedExtensionsWithJsonIfResolveJsonModule = ts.getSuppoertedExtensionsWithJsonIfResolveJsonModule(options, supportedExtensions);
+        var hasEmitBlockingDiagnostics = ts.createMap();
+        var _compilerOptionsObjectLiteralSyntax;
+        var moduleResolutionCache;
+        var actualResolveModuleNamesWorker;
+        var hasInvalidatedResolution = host.hasInvalidatedResolution || ts.returnFalse;
+        if (host.resolveModuleNames) {
+            actualResolveModuleNamesWorker = function (moduleNames, containingFile, reusedNames, redirectedReference) { return host.resolveModuleNames(ts.Debug.checkEachDefined(moduleNames), containingFile, reusedNames, redirectedReference, options).map(function (resolved) {
+                if (!resolved || resolved.extension !== undefined) {
+                    return resolved;
+                }
+                var withExtension = ts.clone(resolved);
+                withExtension.extension = ts.extensionFromPath(resolved.resolvedFileName);
+                return withExtension;
+            }); };
+        }
+        else {
+            moduleResolutionCache = ts.createModuleResolutionCache(currentDirectory, function (x) { return host.getCanonicalFileName(x); }, options);
+            var loader_1 = function (moduleName, containingFile, redirectedReference) { return ts.resolveModuleName(moduleName, containingFile, options, host, moduleResolutionCache, redirectedReference).resolvedModule; };
+            actualResolveModuleNamesWorker = function (moduleNames, containingFile, _reusedNames, redirectedReference) { return loadWithLocalCache(ts.Debug.checkEachDefined(moduleNames), containingFile, redirectedReference, loader_1); };
+        }
+        var actualResolveTypeReferenceDirectiveNamesWorker;
+        if (host.resolveTypeReferenceDirectives) {
+            actualResolveTypeReferenceDirectiveNamesWorker = function (typeDirectiveNames, containingFile, redirectedReference) { return host.resolveTypeReferenceDirectives(ts.Debug.checkEachDefined(typeDirectiveNames), containingFile, redirectedReference, options); };
+        }
+        else {
+            var loader_2 = function (typesRef, containingFile, redirectedReference) { return ts.resolveTypeReferenceDirective(typesRef, containingFile, options, host, redirectedReference).resolvedTypeReferenceDirective; };
+            actualResolveTypeReferenceDirectiveNamesWorker = function (typeReferenceDirectiveNames, containingFile, redirectedReference) { return loadWithLocalCache(ts.Debug.checkEachDefined(typeReferenceDirectiveNames), containingFile, redirectedReference, loader_2); };
+        }
+        var packageIdToSourceFile = ts.createMap();
+        var sourceFileToPackageName = ts.createMap();
+        var redirectTargetsMap = ts.createMultiMap();
+        var filesByName = ts.createMap();
+        var missingFilePaths;
+        var filesByNameIgnoreCase = host.useCaseSensitiveFileNames() ? ts.createMap() : undefined;
+        var resolvedProjectReferences;
+        var projectReferenceRedirects;
+        var mapFromFileToProjectReferenceRedirects;
+        var mapFromToProjectReferenceRedirectSource;
+        var useSourceOfProjectReferenceRedirect = !!((_a = host.useSourceOfProjectReferenceRedirect) === null || _a === void 0 ? void 0 : _a.call(host)) &&
+            !options.disableSourceOfProjectReferenceRedirect;
+        var _b = updateHostForUseSourceOfProjectReferenceRedirect({
+            compilerHost: host,
+            useSourceOfProjectReferenceRedirect: useSourceOfProjectReferenceRedirect,
+            toPath: toPath,
+            getResolvedProjectReferences: getResolvedProjectReferences,
+            getSourceOfProjectReferenceRedirect: getSourceOfProjectReferenceRedirect,
+            forEachResolvedProjectReference: forEachResolvedProjectReference
+        }), onProgramCreateComplete = _b.onProgramCreateComplete, fileExists = _b.fileExists;
+        var shouldCreateNewSourceFile = shouldProgramCreateNewSourceFiles(oldProgram, options);
+        var structuralIsReused;
+        structuralIsReused = tryReuseStructureFromOldProgram();
+        if (structuralIsReused !== 2) {
+            processingDefaultLibFiles = [];
+            processingOtherFiles = [];
+            if (projectReferences) {
+                if (!resolvedProjectReferences) {
+                    resolvedProjectReferences = projectReferences.map(parseProjectReferenceConfigFile);
+                }
+                if (rootNames.length) {
+                    for (var _i = 0, resolvedProjectReferences_1 = resolvedProjectReferences; _i < resolvedProjectReferences_1.length; _i++) {
+                        var parsedRef = resolvedProjectReferences_1[_i];
+                        if (!parsedRef)
+                            continue;
+                        var out = parsedRef.commandLine.options.outFile || parsedRef.commandLine.options.out;
+                        if (useSourceOfProjectReferenceRedirect) {
+                            if (out || ts.getEmitModuleKind(parsedRef.commandLine.options) === ts.ModuleKind.None) {
+                                for (var _c = 0, _d = parsedRef.commandLine.fileNames; _c < _d.length; _c++) {
+                                    var fileName = _d[_c];
+                                    processSourceFile(fileName, false, false, undefined);
+                                }
+                            }
+                        }
+                        else {
+                            if (out) {
+                                processSourceFile(ts.changeExtension(out, ".d.ts"), false, false, undefined);
+                            }
+                            else if (ts.getEmitModuleKind(parsedRef.commandLine.options) === ts.ModuleKind.None) {
+                                for (var _e = 0, _f = parsedRef.commandLine.fileNames; _e < _f.length; _e++) {
+                                    var fileName = _f[_e];
+                                    if (!ts.fileExtensionIs(fileName, ".d.ts") && !ts.fileExtensionIs(fileName, ".json")) {
+                                        processSourceFile(ts.getOutputDeclarationFileName(fileName, parsedRef.commandLine, !host.useCaseSensitiveFileNames()), false, false, undefined);
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            ts.forEach(rootNames, function (name) { return processRootFile(name, false, false); });
+            var typeReferences = rootNames.length ? ts.getAutomaticTypeDirectiveNames(options, host) : ts.emptyArray;
+            if (typeReferences.length) {
+                var containingDirectory = options.configFilePath ? ts.getDirectoryPath(options.configFilePath) : host.getCurrentDirectory();
+                var containingFilename = ts.combinePaths(containingDirectory, ts.inferredTypesContainingFile);
+                var resolutions = resolveTypeReferenceDirectiveNamesWorker(typeReferences, containingFilename);
+                for (var i = 0; i < typeReferences.length; i++) {
+                    processTypeReferenceDirective(typeReferences[i], resolutions[i]);
+                }
+            }
+            if (rootNames.length && !skipDefaultLib) {
+                var defaultLibraryFileName = getDefaultLibraryFileName();
+                if (!options.lib && defaultLibraryFileName) {
+                    processRootFile(defaultLibraryFileName, true, false);
+                }
+                else {
+                    ts.forEach(options.lib, function (libFileName) {
+                        processRootFile(ts.combinePaths(defaultLibraryPath, libFileName), true, false);
+                    });
+                }
+            }
+            missingFilePaths = ts.arrayFrom(ts.mapDefinedIterator(filesByName.entries(), function (_a) {
+                var path = _a[0], file = _a[1];
+                return file === undefined ? path : undefined;
+            }));
+            files = ts.stableSort(processingDefaultLibFiles, compareDefaultLibFiles).concat(processingOtherFiles);
+            processingDefaultLibFiles = undefined;
+            processingOtherFiles = undefined;
+        }
+        ts.Debug.assert(!!missingFilePaths);
+        if (oldProgram && host.onReleaseOldSourceFile) {
+            var oldSourceFiles = oldProgram.getSourceFiles();
+            for (var _g = 0, oldSourceFiles_1 = oldSourceFiles; _g < oldSourceFiles_1.length; _g++) {
+                var oldSourceFile = oldSourceFiles_1[_g];
+                var newFile = getSourceFileByPath(oldSourceFile.resolvedPath);
+                if (shouldCreateNewSourceFile || !newFile ||
+                    (oldSourceFile.resolvedPath === oldSourceFile.path && newFile.resolvedPath !== oldSourceFile.path)) {
+                    host.onReleaseOldSourceFile(oldSourceFile, oldProgram.getCompilerOptions(), !!getSourceFileByPath(oldSourceFile.path));
+                }
+            }
+            oldProgram.forEachResolvedProjectReference(function (resolvedProjectReference, resolvedProjectReferencePath) {
+                if (resolvedProjectReference && !getResolvedProjectReferenceByPath(resolvedProjectReferencePath)) {
+                    host.onReleaseOldSourceFile(resolvedProjectReference.sourceFile, oldProgram.getCompilerOptions(), false);
+                }
+            });
+        }
+        oldProgram = undefined;
+        var program = {
+            getRootFileNames: function () { return rootNames; },
+            getSourceFile: getSourceFile,
+            getSourceFileByPath: getSourceFileByPath,
+            getSourceFiles: function () { return files; },
+            getMissingFilePaths: function () { return missingFilePaths; },
+            getRefFileMap: function () { return refFileMap; },
+            getFilesByNameMap: function () { return filesByName; },
+            getCompilerOptions: function () { return options; },
+            getSyntacticDiagnostics: getSyntacticDiagnostics,
+            getOptionsDiagnostics: getOptionsDiagnostics,
+            getGlobalDiagnostics: getGlobalDiagnostics,
+            getSemanticDiagnostics: getSemanticDiagnostics,
+            getSuggestionDiagnostics: getSuggestionDiagnostics,
+            getDeclarationDiagnostics: getDeclarationDiagnostics,
+            getBindAndCheckDiagnostics: getBindAndCheckDiagnostics,
+            getProgramDiagnostics: getProgramDiagnostics,
+            getTypeChecker: getTypeChecker,
+            getClassifiableNames: getClassifiableNames,
+            getDiagnosticsProducingTypeChecker: getDiagnosticsProducingTypeChecker,
+            getCommonSourceDirectory: getCommonSourceDirectory,
+            emit: emit,
+            getCurrentDirectory: function () { return currentDirectory; },
+            getNodeCount: function () { return getDiagnosticsProducingTypeChecker().getNodeCount(); },
+            getIdentifierCount: function () { return getDiagnosticsProducingTypeChecker().getIdentifierCount(); },
+            getSymbolCount: function () { return getDiagnosticsProducingTypeChecker().getSymbolCount(); },
+            getTypeCount: function () { return getDiagnosticsProducingTypeChecker().getTypeCount(); },
+            getInstantiationCount: function () { return getDiagnosticsProducingTypeChecker().getInstantiationCount(); },
+            getRelationCacheSizes: function () { return getDiagnosticsProducingTypeChecker().getRelationCacheSizes(); },
+            getFileProcessingDiagnostics: function () { return fileProcessingDiagnostics; },
+            getResolvedTypeReferenceDirectives: function () { return resolvedTypeReferenceDirectives; },
+            isSourceFileFromExternalLibrary: isSourceFileFromExternalLibrary,
+            isSourceFileDefaultLibrary: isSourceFileDefaultLibrary,
+            dropDiagnosticsProducingTypeChecker: dropDiagnosticsProducingTypeChecker,
+            getSourceFileFromReference: getSourceFileFromReference,
+            getLibFileFromReference: getLibFileFromReference,
+            sourceFileToPackageName: sourceFileToPackageName,
+            redirectTargetsMap: redirectTargetsMap,
+            isEmittedFile: isEmittedFile,
+            getConfigFileParsingDiagnostics: getConfigFileParsingDiagnostics,
+            getResolvedModuleWithFailedLookupLocationsFromCache: getResolvedModuleWithFailedLookupLocationsFromCache,
+            getProjectReferences: getProjectReferences,
+            getResolvedProjectReferences: getResolvedProjectReferences,
+            getProjectReferenceRedirect: getProjectReferenceRedirect,
+            getResolvedProjectReferenceToRedirect: getResolvedProjectReferenceToRedirect,
+            getResolvedProjectReferenceByPath: getResolvedProjectReferenceByPath,
+            forEachResolvedProjectReference: forEachResolvedProjectReference,
+            isSourceOfProjectReferenceRedirect: isSourceOfProjectReferenceRedirect,
+            emitBuildInfo: emitBuildInfo,
+            fileExists: fileExists,
+            getProbableSymlinks: getProbableSymlinks,
+            useCaseSensitiveFileNames: function () { return host.useCaseSensitiveFileNames(); },
+        };
+        onProgramCreateComplete();
+        verifyCompilerOptions();
+        ts.performance.mark("afterProgram");
+        ts.performance.measure("Program", "beforeProgram", "afterProgram");
+        return program;
+        function resolveModuleNamesWorker(moduleNames, containingFile, reusedNames, redirectedReference) {
+            ts.performance.mark("beforeResolveModule");
+            var result = actualResolveModuleNamesWorker(moduleNames, containingFile, reusedNames, redirectedReference);
+            ts.performance.mark("afterResolveModule");
+            ts.performance.measure("ResolveModule", "beforeResolveModule", "afterResolveModule");
+            return result;
+        }
+        function resolveTypeReferenceDirectiveNamesWorker(typeDirectiveNames, containingFile, redirectedReference) {
+            ts.performance.mark("beforeResolveTypeReference");
+            var result = actualResolveTypeReferenceDirectiveNamesWorker(typeDirectiveNames, containingFile, redirectedReference);
+            ts.performance.mark("afterResolveTypeReference");
+            ts.performance.measure("ResolveTypeReference", "beforeResolveTypeReference", "afterResolveTypeReference");
+            return result;
+        }
+        function compareDefaultLibFiles(a, b) {
+            return ts.compareValues(getDefaultLibFilePriority(a), getDefaultLibFilePriority(b));
+        }
+        function getDefaultLibFilePriority(a) {
+            if (ts.containsPath(defaultLibraryPath, a.fileName, false)) {
+                var basename = ts.getBaseFileName(a.fileName);
+                if (basename === "lib.d.ts" || basename === "lib.es6.d.ts")
+                    return 0;
+                var name = ts.removeSuffix(ts.removePrefix(basename, "lib."), ".d.ts");
+                var index = ts.libs.indexOf(name);
+                if (index !== -1)
+                    return index + 1;
+            }
+            return ts.libs.length + 2;
+        }
+        function getResolvedModuleWithFailedLookupLocationsFromCache(moduleName, containingFile) {
+            return moduleResolutionCache && ts.resolveModuleNameFromCache(moduleName, containingFile, moduleResolutionCache);
+        }
+        function toPath(fileName) {
+            return ts.toPath(fileName, currentDirectory, getCanonicalFileName);
+        }
+        function getCommonSourceDirectory() {
+            if (commonSourceDirectory === undefined) {
+                var emittedFiles = ts.filter(files, function (file) { return ts.sourceFileMayBeEmitted(file, program); });
+                if (options.rootDir && checkSourceFilesBelongToPath(emittedFiles, options.rootDir)) {
+                    commonSourceDirectory = ts.getNormalizedAbsolutePath(options.rootDir, currentDirectory);
+                }
+                else if (options.composite && options.configFilePath) {
+                    commonSourceDirectory = ts.getDirectoryPath(ts.normalizeSlashes(options.configFilePath));
+                    checkSourceFilesBelongToPath(emittedFiles, commonSourceDirectory);
+                }
+                else {
+                    commonSourceDirectory = computeCommonSourceDirectory(emittedFiles);
+                }
+                if (commonSourceDirectory && commonSourceDirectory[commonSourceDirectory.length - 1] !== ts.directorySeparator) {
+                    commonSourceDirectory += ts.directorySeparator;
+                }
+            }
+            return commonSourceDirectory;
+        }
+        function getClassifiableNames() {
+            if (!classifiableNames) {
+                getTypeChecker();
+                classifiableNames = ts.createUnderscoreEscapedMap();
+                for (var _i = 0, files_2 = files; _i < files_2.length; _i++) {
+                    var sourceFile = files_2[_i];
+                    ts.copyEntries(sourceFile.classifiableNames, classifiableNames);
+                }
+            }
+            return classifiableNames;
+        }
+        function resolveModuleNamesReusingOldState(moduleNames, containingFile, file) {
+            if (structuralIsReused === 0 && !file.ambientModuleNames.length) {
+                return resolveModuleNamesWorker(moduleNames, containingFile, undefined, getResolvedProjectReferenceToRedirect(file.originalFileName));
+            }
+            var oldSourceFile = oldProgram && oldProgram.getSourceFile(containingFile);
+            if (oldSourceFile !== file && file.resolvedModules) {
+                var result_11 = [];
+                for (var _i = 0, moduleNames_1 = moduleNames; _i < moduleNames_1.length; _i++) {
+                    var moduleName = moduleNames_1[_i];
+                    var resolvedModule = file.resolvedModules.get(moduleName);
+                    result_11.push(resolvedModule);
+                }
+                return result_11;
+            }
+            var unknownModuleNames;
+            var result;
+            var reusedNames;
+            var predictedToResolveToAmbientModuleMarker = {};
+            for (var i = 0; i < moduleNames.length; i++) {
+                var moduleName = moduleNames[i];
+                if (file === oldSourceFile && !hasInvalidatedResolution(oldSourceFile.path)) {
+                    var oldResolvedModule = oldSourceFile && oldSourceFile.resolvedModules.get(moduleName);
+                    if (oldResolvedModule) {
+                        if (ts.isTraceEnabled(options, host)) {
+                            ts.trace(host, ts.Diagnostics.Reusing_resolution_of_module_0_to_file_1_from_old_program, moduleName, containingFile);
+                        }
+                        (result || (result = new Array(moduleNames.length)))[i] = oldResolvedModule;
+                        (reusedNames || (reusedNames = [])).push(moduleName);
+                        continue;
+                    }
+                }
+                var resolvesToAmbientModuleInNonModifiedFile = false;
+                if (ts.contains(file.ambientModuleNames, moduleName)) {
+                    resolvesToAmbientModuleInNonModifiedFile = true;
+                    if (ts.isTraceEnabled(options, host)) {
+                        ts.trace(host, ts.Diagnostics.Module_0_was_resolved_as_locally_declared_ambient_module_in_file_1, moduleName, containingFile);
+                    }
+                }
+                else {
+                    resolvesToAmbientModuleInNonModifiedFile = moduleNameResolvesToAmbientModuleInNonModifiedFile(moduleName);
+                }
+                if (resolvesToAmbientModuleInNonModifiedFile) {
+                    (result || (result = new Array(moduleNames.length)))[i] = predictedToResolveToAmbientModuleMarker;
+                }
+                else {
+                    (unknownModuleNames || (unknownModuleNames = [])).push(moduleName);
+                }
+            }
+            var resolutions = unknownModuleNames && unknownModuleNames.length
+                ? resolveModuleNamesWorker(unknownModuleNames, containingFile, reusedNames, getResolvedProjectReferenceToRedirect(file.originalFileName))
+                : ts.emptyArray;
+            if (!result) {
+                ts.Debug.assert(resolutions.length === moduleNames.length);
+                return resolutions;
+            }
+            var j = 0;
+            for (var i = 0; i < result.length; i++) {
+                if (result[i]) {
+                    if (result[i] === predictedToResolveToAmbientModuleMarker) {
+                        result[i] = undefined;
+                    }
+                }
+                else {
+                    result[i] = resolutions[j];
+                    j++;
+                }
+            }
+            ts.Debug.assert(j === resolutions.length);
+            return result;
+            function moduleNameResolvesToAmbientModuleInNonModifiedFile(moduleName) {
+                var resolutionToFile = ts.getResolvedModule(oldSourceFile, moduleName);
+                var resolvedFile = resolutionToFile && oldProgram.getSourceFile(resolutionToFile.resolvedFileName);
+                if (resolutionToFile && resolvedFile) {
+                    return false;
+                }
+                var unmodifiedFile = ambientModuleNameToUnmodifiedFileName.get(moduleName);
+                if (!unmodifiedFile) {
+                    return false;
+                }
+                if (ts.isTraceEnabled(options, host)) {
+                    ts.trace(host, ts.Diagnostics.Module_0_was_resolved_as_ambient_module_declared_in_1_since_this_file_was_not_modified, moduleName, unmodifiedFile);
+                }
+                return true;
+            }
+        }
+        function canReuseProjectReferences() {
+            return !forEachProjectReference(oldProgram.getProjectReferences(), oldProgram.getResolvedProjectReferences(), function (oldResolvedRef, index, parent) {
+                var newRef = (parent ? parent.commandLine.projectReferences : projectReferences)[index];
+                var newResolvedRef = parseProjectReferenceConfigFile(newRef);
+                if (oldResolvedRef) {
+                    return !newResolvedRef || newResolvedRef.sourceFile !== oldResolvedRef.sourceFile;
+                }
+                else {
+                    return newResolvedRef !== undefined;
+                }
+            }, function (oldProjectReferences, parent) {
+                var newReferences = parent ? getResolvedProjectReferenceByPath(parent.sourceFile.path).commandLine.projectReferences : projectReferences;
+                return !ts.arrayIsEqualTo(oldProjectReferences, newReferences, ts.projectReferenceIsEqualTo);
+            });
+        }
+        function tryReuseStructureFromOldProgram() {
+            if (!oldProgram) {
+                return 0;
+            }
+            var oldOptions = oldProgram.getCompilerOptions();
+            if (ts.changesAffectModuleResolution(oldOptions, options)) {
+                return oldProgram.structureIsReused = 0;
+            }
+            ts.Debug.assert(!(oldProgram.structureIsReused & (2 | 1)));
+            var oldRootNames = oldProgram.getRootFileNames();
+            if (!ts.arrayIsEqualTo(oldRootNames, rootNames)) {
+                return oldProgram.structureIsReused = 0;
+            }
+            if (!ts.arrayIsEqualTo(options.types, oldOptions.types)) {
+                return oldProgram.structureIsReused = 0;
+            }
+            if (!canReuseProjectReferences()) {
+                return oldProgram.structureIsReused = 0;
+            }
+            if (projectReferences) {
+                resolvedProjectReferences = projectReferences.map(parseProjectReferenceConfigFile);
+            }
+            var newSourceFiles = [];
+            var modifiedSourceFiles = [];
+            oldProgram.structureIsReused = 2;
+            if (oldProgram.getMissingFilePaths().some(function (missingFilePath) { return host.fileExists(missingFilePath); })) {
+                return oldProgram.structureIsReused = 0;
+            }
+            var oldSourceFiles = oldProgram.getSourceFiles();
+            var seenPackageNames = ts.createMap();
+            for (var _i = 0, oldSourceFiles_2 = oldSourceFiles; _i < oldSourceFiles_2.length; _i++) {
+                var oldSourceFile = oldSourceFiles_2[_i];
+                var newSourceFile = host.getSourceFileByPath
+                    ? host.getSourceFileByPath(oldSourceFile.fileName, oldSourceFile.resolvedPath, options.target, undefined, shouldCreateNewSourceFile)
+                    : host.getSourceFile(oldSourceFile.fileName, options.target, undefined, shouldCreateNewSourceFile);
+                if (!newSourceFile) {
+                    return oldProgram.structureIsReused = 0;
+                }
+                ts.Debug.assert(!newSourceFile.redirectInfo, "Host should not return a redirect source file from `getSourceFile`");
+                var fileChanged = void 0;
+                if (oldSourceFile.redirectInfo) {
+                    if (newSourceFile !== oldSourceFile.redirectInfo.unredirected) {
+                        return oldProgram.structureIsReused = 0;
+                    }
+                    fileChanged = false;
+                    newSourceFile = oldSourceFile;
+                }
+                else if (oldProgram.redirectTargetsMap.has(oldSourceFile.path)) {
+                    if (newSourceFile !== oldSourceFile) {
+                        return oldProgram.structureIsReused = 0;
+                    }
+                    fileChanged = false;
+                }
+                else {
+                    fileChanged = newSourceFile !== oldSourceFile;
+                }
+                newSourceFile.path = oldSourceFile.path;
+                newSourceFile.originalFileName = oldSourceFile.originalFileName;
+                newSourceFile.resolvedPath = oldSourceFile.resolvedPath;
+                newSourceFile.fileName = oldSourceFile.fileName;
+                var packageName = oldProgram.sourceFileToPackageName.get(oldSourceFile.path);
+                if (packageName !== undefined) {
+                    var prevKind = seenPackageNames.get(packageName);
+                    var newKind = fileChanged ? 1 : 0;
+                    if ((prevKind !== undefined && newKind === 1) || prevKind === 1) {
+                        return oldProgram.structureIsReused = 0;
+                    }
+                    seenPackageNames.set(packageName, newKind);
+                }
+                if (fileChanged) {
+                    if (!ts.arrayIsEqualTo(oldSourceFile.libReferenceDirectives, newSourceFile.libReferenceDirectives, fileReferenceIsEqualTo)) {
+                        return oldProgram.structureIsReused = 0;
+                    }
+                    if (oldSourceFile.hasNoDefaultLib !== newSourceFile.hasNoDefaultLib) {
+                        oldProgram.structureIsReused = 1;
+                    }
+                    if (!ts.arrayIsEqualTo(oldSourceFile.referencedFiles, newSourceFile.referencedFiles, fileReferenceIsEqualTo)) {
+                        oldProgram.structureIsReused = 1;
+                    }
+                    collectExternalModuleReferences(newSourceFile);
+                    if (!ts.arrayIsEqualTo(oldSourceFile.imports, newSourceFile.imports, moduleNameIsEqualTo)) {
+                        oldProgram.structureIsReused = 1;
+                    }
+                    if (!ts.arrayIsEqualTo(oldSourceFile.moduleAugmentations, newSourceFile.moduleAugmentations, moduleNameIsEqualTo)) {
+                        oldProgram.structureIsReused = 1;
+                    }
+                    if ((oldSourceFile.flags & 3145728) !== (newSourceFile.flags & 3145728)) {
+                        oldProgram.structureIsReused = 1;
+                    }
+                    if (!ts.arrayIsEqualTo(oldSourceFile.typeReferenceDirectives, newSourceFile.typeReferenceDirectives, fileReferenceIsEqualTo)) {
+                        oldProgram.structureIsReused = 1;
+                    }
+                    modifiedSourceFiles.push({ oldFile: oldSourceFile, newFile: newSourceFile });
+                }
+                else if (hasInvalidatedResolution(oldSourceFile.path)) {
+                    oldProgram.structureIsReused = 1;
+                    modifiedSourceFiles.push({ oldFile: oldSourceFile, newFile: newSourceFile });
+                }
+                newSourceFiles.push(newSourceFile);
+            }
+            if (oldProgram.structureIsReused !== 2) {
+                return oldProgram.structureIsReused;
+            }
+            var modifiedFiles = modifiedSourceFiles.map(function (f) { return f.oldFile; });
+            for (var _a = 0, oldSourceFiles_3 = oldSourceFiles; _a < oldSourceFiles_3.length; _a++) {
+                var oldFile = oldSourceFiles_3[_a];
+                if (!ts.contains(modifiedFiles, oldFile)) {
+                    for (var _b = 0, _c = oldFile.ambientModuleNames; _b < _c.length; _b++) {
+                        var moduleName = _c[_b];
+                        ambientModuleNameToUnmodifiedFileName.set(moduleName, oldFile.fileName);
+                    }
+                }
+            }
+            for (var _d = 0, modifiedSourceFiles_1 = modifiedSourceFiles; _d < modifiedSourceFiles_1.length; _d++) {
+                var _e = modifiedSourceFiles_1[_d], oldSourceFile = _e.oldFile, newSourceFile = _e.newFile;
+                var newSourceFilePath = ts.getNormalizedAbsolutePath(newSourceFile.originalFileName, currentDirectory);
+                var moduleNames = getModuleNames(newSourceFile);
+                var resolutions = resolveModuleNamesReusingOldState(moduleNames, newSourceFilePath, newSourceFile);
+                var resolutionsChanged = ts.hasChangesInResolutions(moduleNames, resolutions, oldSourceFile.resolvedModules, ts.moduleResolutionIsEqualTo);
+                if (resolutionsChanged) {
+                    oldProgram.structureIsReused = 1;
+                    newSourceFile.resolvedModules = ts.zipToMap(moduleNames, resolutions);
+                }
+                else {
+                    newSourceFile.resolvedModules = oldSourceFile.resolvedModules;
+                }
+                if (resolveTypeReferenceDirectiveNamesWorker) {
+                    var typesReferenceDirectives = ts.map(newSourceFile.typeReferenceDirectives, function (ref) { return ts.toFileNameLowerCase(ref.fileName); });
+                    var resolutions_1 = resolveTypeReferenceDirectiveNamesWorker(typesReferenceDirectives, newSourceFilePath, getResolvedProjectReferenceToRedirect(newSourceFile.originalFileName));
+                    var resolutionsChanged_1 = ts.hasChangesInResolutions(typesReferenceDirectives, resolutions_1, oldSourceFile.resolvedTypeReferenceDirectiveNames, ts.typeDirectiveIsEqualTo);
+                    if (resolutionsChanged_1) {
+                        oldProgram.structureIsReused = 1;
+                        newSourceFile.resolvedTypeReferenceDirectiveNames = ts.zipToMap(typesReferenceDirectives, resolutions_1);
+                    }
+                    else {
+                        newSourceFile.resolvedTypeReferenceDirectiveNames = oldSourceFile.resolvedTypeReferenceDirectiveNames;
+                    }
+                }
+            }
+            if (oldProgram.structureIsReused !== 2) {
+                return oldProgram.structureIsReused;
+            }
+            if (host.hasChangedAutomaticTypeDirectiveNames) {
+                return oldProgram.structureIsReused = 1;
+            }
+            missingFilePaths = oldProgram.getMissingFilePaths();
+            refFileMap = oldProgram.getRefFileMap();
+            ts.Debug.assert(newSourceFiles.length === oldProgram.getSourceFiles().length);
+            for (var _f = 0, newSourceFiles_1 = newSourceFiles; _f < newSourceFiles_1.length; _f++) {
+                var newSourceFile = newSourceFiles_1[_f];
+                filesByName.set(newSourceFile.path, newSourceFile);
+            }
+            var oldFilesByNameMap = oldProgram.getFilesByNameMap();
+            oldFilesByNameMap.forEach(function (oldFile, path) {
+                if (!oldFile) {
+                    filesByName.set(path, oldFile);
+                    return;
+                }
+                if (oldFile.path === path) {
+                    if (oldProgram.isSourceFileFromExternalLibrary(oldFile)) {
+                        sourceFilesFoundSearchingNodeModules.set(oldFile.path, true);
+                    }
+                    return;
+                }
+                filesByName.set(path, filesByName.get(oldFile.path));
+            });
+            files = newSourceFiles;
+            fileProcessingDiagnostics = oldProgram.getFileProcessingDiagnostics();
+            for (var _g = 0, modifiedSourceFiles_2 = modifiedSourceFiles; _g < modifiedSourceFiles_2.length; _g++) {
+                var modifiedFile = modifiedSourceFiles_2[_g];
+                fileProcessingDiagnostics.reattachFileDiagnostics(modifiedFile.newFile);
+            }
+            resolvedTypeReferenceDirectives = oldProgram.getResolvedTypeReferenceDirectives();
+            sourceFileToPackageName = oldProgram.sourceFileToPackageName;
+            redirectTargetsMap = oldProgram.redirectTargetsMap;
+            return oldProgram.structureIsReused = 2;
+        }
+        function getEmitHost(writeFileCallback) {
+            return {
+                getPrependNodes: getPrependNodes,
+                getCanonicalFileName: getCanonicalFileName,
+                getCommonSourceDirectory: program.getCommonSourceDirectory,
+                getCompilerOptions: program.getCompilerOptions,
+                getCurrentDirectory: function () { return currentDirectory; },
+                getNewLine: function () { return host.getNewLine(); },
+                getSourceFile: program.getSourceFile,
+                getSourceFileByPath: program.getSourceFileByPath,
+                getSourceFiles: program.getSourceFiles,
+                getLibFileFromReference: program.getLibFileFromReference,
+                isSourceFileFromExternalLibrary: isSourceFileFromExternalLibrary,
+                getResolvedProjectReferenceToRedirect: getResolvedProjectReferenceToRedirect,
+                getProjectReferenceRedirect: getProjectReferenceRedirect,
+                isSourceOfProjectReferenceRedirect: isSourceOfProjectReferenceRedirect,
+                getProbableSymlinks: getProbableSymlinks,
+                writeFile: writeFileCallback || (function (fileName, data, writeByteOrderMark, onError, sourceFiles) { return host.writeFile(fileName, data, writeByteOrderMark, onError, sourceFiles); }),
+                isEmitBlocked: isEmitBlocked,
+                readFile: function (f) { return host.readFile(f); },
+                fileExists: function (f) {
+                    var path = toPath(f);
+                    if (getSourceFileByPath(path))
+                        return true;
+                    if (ts.contains(missingFilePaths, path))
+                        return false;
+                    return host.fileExists(f);
+                },
+                useCaseSensitiveFileNames: function () { return host.useCaseSensitiveFileNames(); },
+                getProgramBuildInfo: function () { return program.getProgramBuildInfo && program.getProgramBuildInfo(); },
+                getSourceFileFromReference: function (file, ref) { return program.getSourceFileFromReference(file, ref); },
+                redirectTargetsMap: redirectTargetsMap,
+            };
+        }
+        function emitBuildInfo(writeFileCallback) {
+            ts.Debug.assert(!options.out && !options.outFile);
+            ts.performance.mark("beforeEmit");
+            var emitResult = ts.emitFiles(ts.notImplementedResolver, getEmitHost(writeFileCallback), undefined, ts.noTransformers, false, true);
+            ts.performance.mark("afterEmit");
+            ts.performance.measure("Emit", "beforeEmit", "afterEmit");
+            return emitResult;
+        }
+        function getResolvedProjectReferences() {
+            return resolvedProjectReferences;
+        }
+        function getProjectReferences() {
+            return projectReferences;
+        }
+        function getPrependNodes() {
+            return createPrependNodes(projectReferences, function (_ref, index) { return resolvedProjectReferences[index].commandLine; }, function (fileName) {
+                var path = toPath(fileName);
+                var sourceFile = getSourceFileByPath(path);
+                return sourceFile ? sourceFile.text : filesByName.has(path) ? undefined : host.readFile(path);
+            });
+        }
+        function isSourceFileFromExternalLibrary(file) {
+            return !!sourceFilesFoundSearchingNodeModules.get(file.path);
+        }
+        function isSourceFileDefaultLibrary(file) {
+            if (file.hasNoDefaultLib) {
+                return true;
+            }
+            if (!options.noLib) {
+                return false;
+            }
+            var equalityComparer = host.useCaseSensitiveFileNames() ? ts.equateStringsCaseSensitive : ts.equateStringsCaseInsensitive;
+            if (!options.lib) {
+                return equalityComparer(file.fileName, getDefaultLibraryFileName());
+            }
+            else {
+                return ts.some(options.lib, function (libFileName) { return equalityComparer(file.fileName, ts.combinePaths(defaultLibraryPath, libFileName)); });
+            }
+        }
+        function getDiagnosticsProducingTypeChecker() {
+            return diagnosticsProducingTypeChecker || (diagnosticsProducingTypeChecker = ts.createTypeChecker(program, true));
+        }
+        function dropDiagnosticsProducingTypeChecker() {
+            diagnosticsProducingTypeChecker = undefined;
+        }
+        function getTypeChecker() {
+            return noDiagnosticsTypeChecker || (noDiagnosticsTypeChecker = ts.createTypeChecker(program, false));
+        }
+        function emit(sourceFile, writeFileCallback, cancellationToken, emitOnlyDtsFiles, transformers, forceDtsEmit) {
+            return runWithCancellationToken(function () { return emitWorker(program, sourceFile, writeFileCallback, cancellationToken, emitOnlyDtsFiles, transformers, forceDtsEmit); });
+        }
+        function isEmitBlocked(emitFileName) {
+            return hasEmitBlockingDiagnostics.has(toPath(emitFileName));
+        }
+        function emitWorker(program, sourceFile, writeFileCallback, cancellationToken, emitOnlyDtsFiles, customTransformers, forceDtsEmit) {
+            if (!forceDtsEmit) {
+                var result = handleNoEmitOptions(program, sourceFile, cancellationToken);
+                if (result)
+                    return result;
+            }
+            var emitResolver = getDiagnosticsProducingTypeChecker().getEmitResolver((options.outFile || options.out) ? undefined : sourceFile, cancellationToken);
+            ts.performance.mark("beforeEmit");
+            var emitResult = ts.emitFiles(emitResolver, getEmitHost(writeFileCallback), sourceFile, ts.getTransformers(options, customTransformers, emitOnlyDtsFiles), emitOnlyDtsFiles, false, forceDtsEmit);
+            ts.performance.mark("afterEmit");
+            ts.performance.measure("Emit", "beforeEmit", "afterEmit");
+            return emitResult;
+        }
+        function getSourceFile(fileName) {
+            return getSourceFileByPath(toPath(fileName));
+        }
+        function getSourceFileByPath(path) {
+            return filesByName.get(path) || undefined;
+        }
+        function getDiagnosticsHelper(sourceFile, getDiagnostics, cancellationToken) {
+            if (sourceFile) {
+                return getDiagnostics(sourceFile, cancellationToken);
+            }
+            return ts.sortAndDeduplicateDiagnostics(ts.flatMap(program.getSourceFiles(), function (sourceFile) {
+                if (cancellationToken) {
+                    cancellationToken.throwIfCancellationRequested();
+                }
+                return getDiagnostics(sourceFile, cancellationToken);
+            }));
+        }
+        function getSyntacticDiagnostics(sourceFile, cancellationToken) {
+            return getDiagnosticsHelper(sourceFile, getSyntacticDiagnosticsForFile, cancellationToken);
+        }
+        function getSemanticDiagnostics(sourceFile, cancellationToken) {
+            return getDiagnosticsHelper(sourceFile, getSemanticDiagnosticsForFile, cancellationToken);
+        }
+        function getBindAndCheckDiagnostics(sourceFile, cancellationToken) {
+            return getBindAndCheckDiagnosticsForFile(sourceFile, cancellationToken);
+        }
+        function getProgramDiagnostics(sourceFile) {
+            if (ts.skipTypeChecking(sourceFile, options, program)) {
+                return ts.emptyArray;
+            }
+            var fileProcessingDiagnosticsInFile = fileProcessingDiagnostics.getDiagnostics(sourceFile.fileName);
+            var programDiagnosticsInFile = programDiagnostics.getDiagnostics(sourceFile.fileName);
+            return getMergedProgramDiagnostics(sourceFile, fileProcessingDiagnosticsInFile, programDiagnosticsInFile);
+        }
+        function getMergedProgramDiagnostics(sourceFile) {
+            var _a;
+            var allDiagnostics = [];
+            for (var _i = 1; _i < arguments.length; _i++) {
+                allDiagnostics[_i - 1] = arguments[_i];
+            }
+            var flatDiagnostics = ts.flatten(allDiagnostics);
+            if (!((_a = sourceFile.commentDirectives) === null || _a === void 0 ? void 0 : _a.length)) {
+                return flatDiagnostics;
+            }
+            return getDiagnosticsWithPrecedingDirectives(sourceFile, sourceFile.commentDirectives, flatDiagnostics).diagnostics;
+        }
+        function getDeclarationDiagnostics(sourceFile, cancellationToken) {
+            var options = program.getCompilerOptions();
+            if (!sourceFile || options.out || options.outFile) {
+                return getDeclarationDiagnosticsWorker(sourceFile, cancellationToken);
+            }
+            else {
+                return getDiagnosticsHelper(sourceFile, getDeclarationDiagnosticsForFile, cancellationToken);
+            }
+        }
+        function getSyntacticDiagnosticsForFile(sourceFile) {
+            if (ts.isSourceFileJS(sourceFile)) {
+                if (!sourceFile.additionalSyntacticDiagnostics) {
+                    sourceFile.additionalSyntacticDiagnostics = getJSSyntacticDiagnosticsForFile(sourceFile);
+                }
+                return ts.concatenate(sourceFile.additionalSyntacticDiagnostics, sourceFile.parseDiagnostics);
+            }
+            return sourceFile.parseDiagnostics;
+        }
+        function runWithCancellationToken(func) {
+            try {
+                return func();
+            }
+            catch (e) {
+                if (e instanceof ts.OperationCanceledException) {
+                    noDiagnosticsTypeChecker = undefined;
+                    diagnosticsProducingTypeChecker = undefined;
+                }
+                throw e;
+            }
+        }
+        function getSemanticDiagnosticsForFile(sourceFile, cancellationToken) {
+            return ts.concatenate(getBindAndCheckDiagnosticsForFile(sourceFile, cancellationToken), getProgramDiagnostics(sourceFile));
+        }
+        function getBindAndCheckDiagnosticsForFile(sourceFile, cancellationToken) {
+            return getAndCacheDiagnostics(sourceFile, cancellationToken, cachedBindAndCheckDiagnosticsForFile, getBindAndCheckDiagnosticsForFileNoCache);
+        }
+        function getBindAndCheckDiagnosticsForFileNoCache(sourceFile, cancellationToken) {
+            return runWithCancellationToken(function () {
+                if (ts.skipTypeChecking(sourceFile, options, program)) {
+                    return ts.emptyArray;
+                }
+                var typeChecker = getDiagnosticsProducingTypeChecker();
+                ts.Debug.assert(!!sourceFile.bindDiagnostics);
+                var isCheckJs = ts.isCheckJsEnabledForFile(sourceFile, options);
+                var isTsNoCheck = !!sourceFile.checkJsDirective && sourceFile.checkJsDirective.enabled === false;
+                var includeBindAndCheckDiagnostics = !isTsNoCheck && (sourceFile.scriptKind === 3 || sourceFile.scriptKind === 4 ||
+                    sourceFile.scriptKind === 5 || isCheckJs || sourceFile.scriptKind === 7);
+                var bindDiagnostics = includeBindAndCheckDiagnostics ? sourceFile.bindDiagnostics : ts.emptyArray;
+                var checkDiagnostics = includeBindAndCheckDiagnostics ? typeChecker.getDiagnostics(sourceFile, cancellationToken) : ts.emptyArray;
+                return getMergedBindAndCheckDiagnostics(sourceFile, bindDiagnostics, checkDiagnostics, isCheckJs ? sourceFile.jsDocDiagnostics : undefined);
+            });
+        }
+        function getMergedBindAndCheckDiagnostics(sourceFile) {
+            var _a;
+            var allDiagnostics = [];
+            for (var _i = 1; _i < arguments.length; _i++) {
+                allDiagnostics[_i - 1] = arguments[_i];
+            }
+            var flatDiagnostics = ts.flatten(allDiagnostics);
+            if (!((_a = sourceFile.commentDirectives) === null || _a === void 0 ? void 0 : _a.length)) {
+                return flatDiagnostics;
+            }
+            var _b = getDiagnosticsWithPrecedingDirectives(sourceFile, sourceFile.commentDirectives, flatDiagnostics), diagnostics = _b.diagnostics, directives = _b.directives;
+            for (var _c = 0, _d = directives.getUnusedExpectations(); _c < _d.length; _c++) {
+                var errorExpectation = _d[_c];
+                diagnostics.push(ts.createDiagnosticForRange(sourceFile, errorExpectation.range, ts.Diagnostics.Unused_ts_expect_error_directive));
+            }
+            return diagnostics;
+        }
+        function getDiagnosticsWithPrecedingDirectives(sourceFile, commentDirectives, flatDiagnostics) {
+            var directives = ts.createCommentDirectivesMap(sourceFile, commentDirectives);
+            var diagnostics = flatDiagnostics.filter(function (diagnostic) { return markPrecedingCommentDirectiveLine(diagnostic, directives) === -1; });
+            return { diagnostics: diagnostics, directives: directives };
+        }
+        function getSuggestionDiagnostics(sourceFile, cancellationToken) {
+            return runWithCancellationToken(function () {
+                return getDiagnosticsProducingTypeChecker().getSuggestionDiagnostics(sourceFile, cancellationToken);
+            });
+        }
+        function markPrecedingCommentDirectiveLine(diagnostic, directives) {
+            var file = diagnostic.file, start = diagnostic.start;
+            if (!file) {
+                return -1;
+            }
+            var lineStarts = ts.getLineStarts(file);
+            var line = ts.computeLineAndCharacterOfPosition(lineStarts, start).line - 1;
+            while (line >= 0) {
+                if (directives.markUsed(line)) {
+                    return line;
+                }
+                var lineText = file.text.slice(lineStarts[line], lineStarts[line + 1]).trim();
+                if (lineText !== "" && !/^(\s*)\/\/(.*)$/.test(lineText)) {
+                    return -1;
+                }
+                line--;
+            }
+            return -1;
+        }
+        function getJSSyntacticDiagnosticsForFile(sourceFile) {
+            return runWithCancellationToken(function () {
+                var diagnostics = [];
+                walk(sourceFile, sourceFile);
+                ts.forEachChildRecursively(sourceFile, walk, walkArray);
+                return diagnostics;
+                function walk(node, parent) {
+                    switch (parent.kind) {
+                        case 156:
+                        case 159:
+                        case 161:
+                            if (parent.questionToken === node) {
+                                diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.The_0_modifier_can_only_be_used_in_TypeScript_files, "?"));
+                                return "skip";
+                            }
+                        case 160:
+                        case 162:
+                        case 163:
+                        case 164:
+                        case 201:
+                        case 244:
+                        case 202:
+                        case 242:
+                            if (parent.type === node) {
+                                diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.Type_annotations_can_only_be_used_in_TypeScript_files));
+                                return "skip";
+                            }
+                    }
+                    switch (node.kind) {
+                        case 255:
+                            if (node.isTypeOnly) {
+                                diagnostics.push(createDiagnosticForNode(node.parent, ts.Diagnostics._0_declarations_can_only_be_used_in_TypeScript_files, "import type"));
+                                return "skip";
+                            }
+                            break;
+                        case 260:
+                            if (node.isTypeOnly) {
+                                diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics._0_declarations_can_only_be_used_in_TypeScript_files, "export type"));
+                                return "skip";
+                            }
+                            break;
+                        case 253:
+                            diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.import_can_only_be_used_in_TypeScript_files));
+                            return "skip";
+                        case 259:
+                            if (node.isExportEquals) {
+                                diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.export_can_only_be_used_in_TypeScript_files));
+                                return "skip";
+                            }
+                            break;
+                        case 279:
+                            var heritageClause = node;
+                            if (heritageClause.token === 113) {
+                                diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.implements_clauses_can_only_be_used_in_TypeScript_files));
+                                return "skip";
+                            }
+                            break;
+                        case 246:
+                            var interfaceKeyword = ts.tokenToString(114);
+                            ts.Debug.assertIsDefined(interfaceKeyword);
+                            diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics._0_declarations_can_only_be_used_in_TypeScript_files, interfaceKeyword));
+                            return "skip";
+                        case 249:
+                            var moduleKeyword = node.flags & 16 ? ts.tokenToString(136) : ts.tokenToString(135);
+                            ts.Debug.assertIsDefined(moduleKeyword);
+                            diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics._0_declarations_can_only_be_used_in_TypeScript_files, moduleKeyword));
+                            return "skip";
+                        case 247:
+                            diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.Type_aliases_can_only_be_used_in_TypeScript_files));
+                            return "skip";
+                        case 248:
+                            var enumKeyword = ts.Debug.checkDefined(ts.tokenToString(88));
+                            diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics._0_declarations_can_only_be_used_in_TypeScript_files, enumKeyword));
+                            return "skip";
+                        case 218:
+                            diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.Non_null_assertions_can_only_be_used_in_TypeScript_files));
+                            return "skip";
+                        case 217:
+                            diagnostics.push(createDiagnosticForNode(node.type, ts.Diagnostics.Type_assertion_expressions_can_only_be_used_in_TypeScript_files));
+                            return "skip";
+                        case 199:
+                            ts.Debug.fail();
+                    }
+                }
+                function walkArray(nodes, parent) {
+                    if (parent.decorators === nodes && !options.experimentalDecorators) {
+                        diagnostics.push(createDiagnosticForNode(parent, ts.Diagnostics.Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalDecorators_option_in_your_tsconfig_or_jsconfig_to_remove_this_warning));
+                    }
+                    switch (parent.kind) {
+                        case 245:
+                        case 214:
+                        case 161:
+                        case 162:
+                        case 163:
+                        case 164:
+                        case 201:
+                        case 244:
+                        case 202:
+                            if (nodes === parent.typeParameters) {
+                                diagnostics.push(createDiagnosticForNodeArray(nodes, ts.Diagnostics.Type_parameter_declarations_can_only_be_used_in_TypeScript_files));
+                                return "skip";
+                            }
+                        case 225:
+                            if (nodes === parent.modifiers) {
+                                checkModifiers(parent.modifiers, parent.kind === 225);
+                                return "skip";
+                            }
+                            break;
+                        case 159:
+                            if (nodes === parent.modifiers) {
+                                for (var _i = 0, _a = nodes; _i < _a.length; _i++) {
+                                    var modifier = _a[_i];
+                                    if (modifier.kind !== 120) {
+                                        diagnostics.push(createDiagnosticForNode(modifier, ts.Diagnostics.The_0_modifier_can_only_be_used_in_TypeScript_files, ts.tokenToString(modifier.kind)));
+                                    }
+                                }
+                                return "skip";
+                            }
+                            break;
+                        case 156:
+                            if (nodes === parent.modifiers) {
+                                diagnostics.push(createDiagnosticForNodeArray(nodes, ts.Diagnostics.Parameter_modifiers_can_only_be_used_in_TypeScript_files));
+                                return "skip";
+                            }
+                            break;
+                        case 196:
+                        case 197:
+                        case 216:
+                        case 267:
+                        case 268:
+                        case 198:
+                            if (nodes === parent.typeArguments) {
+                                diagnostics.push(createDiagnosticForNodeArray(nodes, ts.Diagnostics.Type_arguments_can_only_be_used_in_TypeScript_files));
+                                return "skip";
+                            }
+                            break;
+                    }
+                }
+                function checkModifiers(modifiers, isConstValid) {
+                    for (var _i = 0, modifiers_1 = modifiers; _i < modifiers_1.length; _i++) {
+                        var modifier = modifiers_1[_i];
+                        switch (modifier.kind) {
+                            case 81:
+                                if (isConstValid) {
+                                    continue;
+                                }
+                            case 119:
+                            case 117:
+                            case 118:
+                            case 138:
+                            case 130:
+                            case 122:
+                                diagnostics.push(createDiagnosticForNode(modifier, ts.Diagnostics.The_0_modifier_can_only_be_used_in_TypeScript_files, ts.tokenToString(modifier.kind)));
+                                break;
+                            case 120:
+                            case 89:
+                            case 84:
+                        }
+                    }
+                }
+                function createDiagnosticForNodeArray(nodes, message, arg0, arg1, arg2) {
+                    var start = nodes.pos;
+                    return ts.createFileDiagnostic(sourceFile, start, nodes.end - start, message, arg0, arg1, arg2);
+                }
+                function createDiagnosticForNode(node, message, arg0, arg1, arg2) {
+                    return ts.createDiagnosticForNodeInSourceFile(sourceFile, node, message, arg0, arg1, arg2);
+                }
+            });
+        }
+        function getDeclarationDiagnosticsWorker(sourceFile, cancellationToken) {
+            return getAndCacheDiagnostics(sourceFile, cancellationToken, cachedDeclarationDiagnosticsForFile, getDeclarationDiagnosticsForFileNoCache);
+        }
+        function getDeclarationDiagnosticsForFileNoCache(sourceFile, cancellationToken) {
+            return runWithCancellationToken(function () {
+                var resolver = getDiagnosticsProducingTypeChecker().getEmitResolver(sourceFile, cancellationToken);
+                return ts.getDeclarationDiagnostics(getEmitHost(ts.noop), resolver, sourceFile) || ts.emptyArray;
+            });
+        }
+        function getAndCacheDiagnostics(sourceFile, cancellationToken, cache, getDiagnostics) {
+            var cachedResult = sourceFile
+                ? cache.perFile && cache.perFile.get(sourceFile.path)
+                : cache.allDiagnostics;
+            if (cachedResult) {
+                return cachedResult;
+            }
+            var result = getDiagnostics(sourceFile, cancellationToken);
+            if (sourceFile) {
+                if (!cache.perFile) {
+                    cache.perFile = ts.createMap();
+                }
+                cache.perFile.set(sourceFile.path, result);
+            }
+            else {
+                cache.allDiagnostics = result;
+            }
+            return result;
+        }
+        function getDeclarationDiagnosticsForFile(sourceFile, cancellationToken) {
+            return sourceFile.isDeclarationFile ? [] : getDeclarationDiagnosticsWorker(sourceFile, cancellationToken);
+        }
+        function getOptionsDiagnostics() {
+            return ts.sortAndDeduplicateDiagnostics(ts.concatenate(fileProcessingDiagnostics.getGlobalDiagnostics(), ts.concatenate(programDiagnostics.getGlobalDiagnostics(), getOptionsDiagnosticsOfConfigFile())));
+        }
+        function getOptionsDiagnosticsOfConfigFile() {
+            if (!options.configFile) {
+                return ts.emptyArray;
+            }
+            var diagnostics = programDiagnostics.getDiagnostics(options.configFile.fileName);
+            forEachResolvedProjectReference(function (resolvedRef) {
+                if (resolvedRef) {
+                    diagnostics = ts.concatenate(diagnostics, programDiagnostics.getDiagnostics(resolvedRef.sourceFile.fileName));
+                }
+            });
+            return diagnostics;
+        }
+        function getGlobalDiagnostics() {
+            return rootNames.length ? ts.sortAndDeduplicateDiagnostics(getDiagnosticsProducingTypeChecker().getGlobalDiagnostics().slice()) : ts.emptyArray;
+        }
+        function getConfigFileParsingDiagnostics() {
+            return configFileParsingDiagnostics || ts.emptyArray;
+        }
+        function processRootFile(fileName, isDefaultLib, ignoreNoDefaultLib) {
+            processSourceFile(ts.normalizePath(fileName), isDefaultLib, ignoreNoDefaultLib, undefined);
+        }
+        function fileReferenceIsEqualTo(a, b) {
+            return a.fileName === b.fileName;
+        }
+        function moduleNameIsEqualTo(a, b) {
+            return a.kind === 75
+                ? b.kind === 75 && a.escapedText === b.escapedText
+                : b.kind === 10 && a.text === b.text;
+        }
+        function collectExternalModuleReferences(file) {
+            if (file.imports) {
+                return;
+            }
+            var isJavaScriptFile = ts.isSourceFileJS(file);
+            var isExternalModuleFile = ts.isExternalModule(file);
+            var imports;
+            var moduleAugmentations;
+            var ambientModules;
+            if (options.importHelpers
+                && (options.isolatedModules || isExternalModuleFile)
+                && !file.isDeclarationFile) {
+                var externalHelpersModuleReference = ts.createLiteral(ts.externalHelpersModuleNameText);
+                var importDecl = ts.createImportDeclaration(undefined, undefined, undefined, externalHelpersModuleReference);
+                ts.addEmitFlags(importDecl, 67108864);
+                externalHelpersModuleReference.parent = importDecl;
+                importDecl.parent = file;
+                imports = [externalHelpersModuleReference];
+            }
+            for (var _i = 0, _a = file.statements; _i < _a.length; _i++) {
+                var node = _a[_i];
+                collectModuleReferences(node, false);
+            }
+            if ((file.flags & 1048576) || isJavaScriptFile) {
+                collectDynamicImportOrRequireCalls(file);
+            }
+            file.imports = imports || ts.emptyArray;
+            file.moduleAugmentations = moduleAugmentations || ts.emptyArray;
+            file.ambientModuleNames = ambientModules || ts.emptyArray;
+            return;
+            function collectModuleReferences(node, inAmbientModule) {
+                if (ts.isAnyImportOrReExport(node)) {
+                    var moduleNameExpr = ts.getExternalModuleName(node);
+                    if (moduleNameExpr && ts.isStringLiteral(moduleNameExpr) && moduleNameExpr.text && (!inAmbientModule || !ts.isExternalModuleNameRelative(moduleNameExpr.text))) {
+                        imports = ts.append(imports, moduleNameExpr);
+                    }
+                }
+                else if (ts.isModuleDeclaration(node)) {
+                    if (ts.isAmbientModule(node) && (inAmbientModule || ts.hasModifier(node, 2) || file.isDeclarationFile)) {
+                        var nameText = ts.getTextOfIdentifierOrLiteral(node.name);
+                        if (isExternalModuleFile || (inAmbientModule && !ts.isExternalModuleNameRelative(nameText))) {
+                            (moduleAugmentations || (moduleAugmentations = [])).push(node.name);
+                        }
+                        else if (!inAmbientModule) {
+                            if (file.isDeclarationFile) {
+                                (ambientModules || (ambientModules = [])).push(nameText);
+                            }
+                            var body = node.body;
+                            if (body) {
+                                for (var _i = 0, _a = body.statements; _i < _a.length; _i++) {
+                                    var statement = _a[_i];
+                                    collectModuleReferences(statement, true);
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            function collectDynamicImportOrRequireCalls(file) {
+                var r = /import|require/g;
+                while (r.exec(file.text) !== null) {
+                    var node = getNodeAtPosition(file, r.lastIndex);
+                    if (ts.isRequireCall(node, true)) {
+                        imports = ts.append(imports, node.arguments[0]);
+                    }
+                    else if (ts.isImportCall(node) && node.arguments.length === 1 && ts.isStringLiteralLike(node.arguments[0])) {
+                        imports = ts.append(imports, node.arguments[0]);
+                    }
+                    else if (ts.isLiteralImportTypeNode(node)) {
+                        imports = ts.append(imports, node.argument.literal);
+                    }
+                }
+            }
+            function getNodeAtPosition(sourceFile, position) {
+                var current = sourceFile;
+                var getContainingChild = function (child) {
+                    if (child.pos <= position && (position < child.end || (position === child.end && (child.kind === 1)))) {
+                        return child;
+                    }
+                };
+                while (true) {
+                    var child = isJavaScriptFile && ts.hasJSDocNodes(current) && ts.forEach(current.jsDoc, getContainingChild) || ts.forEachChild(current, getContainingChild);
+                    if (!child) {
+                        return current;
+                    }
+                    current = child;
+                }
+            }
+        }
+        function getLibFileFromReference(ref) {
+            var libName = ts.toFileNameLowerCase(ref.fileName);
+            var libFileName = ts.libMap.get(libName);
+            if (libFileName) {
+                return getSourceFile(ts.combinePaths(defaultLibraryPath, libFileName));
+            }
+        }
+        function getSourceFileFromReference(referencingFile, ref) {
+            return getSourceFileFromReferenceWorker(resolveTripleslashReference(ref.fileName, referencingFile.fileName), function (fileName) { return filesByName.get(toPath(fileName)) || undefined; });
+        }
+        function getSourceFileFromReferenceWorker(fileName, getSourceFile, fail, refFile) {
+            if (ts.hasExtension(fileName)) {
+                var canonicalFileName_1 = host.getCanonicalFileName(fileName);
+                if (!options.allowNonTsExtensions && !ts.forEach(supportedExtensionsWithJsonIfResolveJsonModule, function (extension) { return ts.fileExtensionIs(canonicalFileName_1, extension); })) {
+                    if (fail) {
+                        if (ts.hasJSFileExtension(canonicalFileName_1)) {
+                            fail(ts.Diagnostics.File_0_is_a_JavaScript_file_Did_you_mean_to_enable_the_allowJs_option, fileName);
+                        }
+                        else {
+                            fail(ts.Diagnostics.File_0_has_an_unsupported_extension_The_only_supported_extensions_are_1, fileName, "'" + supportedExtensions.join("', '") + "'");
+                        }
+                    }
+                    return undefined;
+                }
+                var sourceFile = getSourceFile(fileName);
+                if (fail) {
+                    if (!sourceFile) {
+                        var redirect = getProjectReferenceRedirect(fileName);
+                        if (redirect) {
+                            fail(ts.Diagnostics.Output_file_0_has_not_been_built_from_source_file_1, redirect, fileName);
+                        }
+                        else {
+                            fail(ts.Diagnostics.File_0_not_found, fileName);
+                        }
+                    }
+                    else if (refFile && canonicalFileName_1 === host.getCanonicalFileName(refFile.fileName)) {
+                        fail(ts.Diagnostics.A_file_cannot_have_a_reference_to_itself);
+                    }
+                }
+                return sourceFile;
+            }
+            else {
+                var sourceFileNoExtension = options.allowNonTsExtensions && getSourceFile(fileName);
+                if (sourceFileNoExtension)
+                    return sourceFileNoExtension;
+                if (fail && options.allowNonTsExtensions) {
+                    fail(ts.Diagnostics.File_0_not_found, fileName);
+                    return undefined;
+                }
+                var sourceFileWithAddedExtension = ts.forEach(supportedExtensions, function (extension) { return getSourceFile(fileName + extension); });
+                if (fail && !sourceFileWithAddedExtension)
+                    fail(ts.Diagnostics.Could_not_resolve_the_path_0_with_the_extensions_Colon_1, fileName, "'" + supportedExtensions.join("', '") + "'");
+                return sourceFileWithAddedExtension;
+            }
+        }
+        function processSourceFile(fileName, isDefaultLib, ignoreNoDefaultLib, packageId, refFile) {
+            getSourceFileFromReferenceWorker(fileName, function (fileName) { return findSourceFile(fileName, toPath(fileName), isDefaultLib, ignoreNoDefaultLib, refFile, packageId); }, function (diagnostic) {
+                var args = [];
+                for (var _i = 1; _i < arguments.length; _i++) {
+                    args[_i - 1] = arguments[_i];
+                }
+                return fileProcessingDiagnostics.add(createRefFileDiagnostic.apply(void 0, __spreadArrays([refFile, diagnostic], args)));
+            }, refFile && refFile.file);
+        }
+        function reportFileNamesDifferOnlyInCasingError(fileName, existingFile, refFile) {
+            var refs = !refFile ? refFileMap && refFileMap.get(existingFile.path) : undefined;
+            var refToReportErrorOn = refs && ts.find(refs, function (ref) { return ref.referencedFileName === existingFile.fileName; });
+            fileProcessingDiagnostics.add(refToReportErrorOn ?
+                createFileDiagnosticAtReference(refToReportErrorOn, ts.Diagnostics.Already_included_file_name_0_differs_from_file_name_1_only_in_casing, existingFile.fileName, fileName) :
+                createRefFileDiagnostic(refFile, ts.Diagnostics.File_name_0_differs_from_already_included_file_name_1_only_in_casing, fileName, existingFile.fileName));
+        }
+        function createRedirectSourceFile(redirectTarget, unredirected, fileName, path, resolvedPath, originalFileName) {
+            var redirect = Object.create(redirectTarget);
+            redirect.fileName = fileName;
+            redirect.path = path;
+            redirect.resolvedPath = resolvedPath;
+            redirect.originalFileName = originalFileName;
+            redirect.redirectInfo = { redirectTarget: redirectTarget, unredirected: unredirected };
+            sourceFilesFoundSearchingNodeModules.set(path, currentNodeModulesDepth > 0);
+            Object.defineProperties(redirect, {
+                id: {
+                    get: function () { return this.redirectInfo.redirectTarget.id; },
+                    set: function (value) { this.redirectInfo.redirectTarget.id = value; },
+                },
+                symbol: {
+                    get: function () { return this.redirectInfo.redirectTarget.symbol; },
+                    set: function (value) { this.redirectInfo.redirectTarget.symbol = value; },
+                },
+            });
+            return redirect;
+        }
+        function findSourceFile(fileName, path, isDefaultLib, ignoreNoDefaultLib, refFile, packageId) {
+            if (useSourceOfProjectReferenceRedirect) {
+                var source = getSourceOfProjectReferenceRedirect(fileName);
+                if (!source &&
+                    host.realpath &&
+                    options.preserveSymlinks &&
+                    ts.isDeclarationFileName(fileName) &&
+                    ts.stringContains(fileName, ts.nodeModulesPathPart)) {
+                    var realPath = host.realpath(fileName);
+                    if (realPath !== fileName)
+                        source = getSourceOfProjectReferenceRedirect(realPath);
+                }
+                if (source) {
+                    var file_1 = ts.isString(source) ?
+                        findSourceFile(source, toPath(source), isDefaultLib, ignoreNoDefaultLib, refFile, packageId) :
+                        undefined;
+                    if (file_1)
+                        addFileToFilesByName(file_1, path, undefined);
+                    return file_1;
+                }
+            }
+            var originalFileName = fileName;
+            if (filesByName.has(path)) {
+                var file_2 = filesByName.get(path);
+                addFileToRefFileMap(fileName, file_2 || undefined, refFile);
+                if (file_2 && options.forceConsistentCasingInFileNames) {
+                    var checkedName = file_2.fileName;
+                    var isRedirect = toPath(checkedName) !== toPath(fileName);
+                    if (isRedirect) {
+                        fileName = getProjectReferenceRedirect(fileName) || fileName;
+                    }
+                    var checkedAbsolutePath = ts.getNormalizedAbsolutePathWithoutRoot(checkedName, currentDirectory);
+                    var inputAbsolutePath = ts.getNormalizedAbsolutePathWithoutRoot(fileName, currentDirectory);
+                    if (checkedAbsolutePath !== inputAbsolutePath) {
+                        reportFileNamesDifferOnlyInCasingError(fileName, file_2, refFile);
+                    }
+                }
+                if (file_2 && sourceFilesFoundSearchingNodeModules.get(file_2.path) && currentNodeModulesDepth === 0) {
+                    sourceFilesFoundSearchingNodeModules.set(file_2.path, false);
+                    if (!options.noResolve) {
+                        processReferencedFiles(file_2, isDefaultLib);
+                        processTypeReferenceDirectives(file_2);
+                    }
+                    if (!options.noLib) {
+                        processLibReferenceDirectives(file_2);
+                    }
+                    modulesWithElidedImports.set(file_2.path, false);
+                    processImportedModules(file_2);
+                }
+                else if (file_2 && modulesWithElidedImports.get(file_2.path)) {
+                    if (currentNodeModulesDepth < maxNodeModuleJsDepth) {
+                        modulesWithElidedImports.set(file_2.path, false);
+                        processImportedModules(file_2);
+                    }
+                }
+                return file_2 || undefined;
+            }
+            var redirectedPath;
+            if (refFile && !useSourceOfProjectReferenceRedirect) {
+                var redirectProject = getProjectReferenceRedirectProject(fileName);
+                if (redirectProject) {
+                    if (redirectProject.commandLine.options.outFile || redirectProject.commandLine.options.out) {
+                        return undefined;
+                    }
+                    var redirect = getProjectReferenceOutputName(redirectProject, fileName);
+                    fileName = redirect;
+                    redirectedPath = toPath(redirect);
+                }
+            }
+            var file = host.getSourceFile(fileName, options.target, function (hostErrorMessage) { return fileProcessingDiagnostics.add(createRefFileDiagnostic(refFile, ts.Diagnostics.Cannot_read_file_0_Colon_1, fileName, hostErrorMessage)); }, shouldCreateNewSourceFile);
+            if (packageId) {
+                var packageIdKey = ts.packageIdToString(packageId);
+                var fileFromPackageId = packageIdToSourceFile.get(packageIdKey);
+                if (fileFromPackageId) {
+                    var dupFile = createRedirectSourceFile(fileFromPackageId, file, fileName, path, toPath(fileName), originalFileName);
+                    redirectTargetsMap.add(fileFromPackageId.path, fileName);
+                    addFileToFilesByName(dupFile, path, redirectedPath);
+                    sourceFileToPackageName.set(path, packageId.name);
+                    processingOtherFiles.push(dupFile);
+                    return dupFile;
+                }
+                else if (file) {
+                    packageIdToSourceFile.set(packageIdKey, file);
+                    sourceFileToPackageName.set(path, packageId.name);
+                }
+            }
+            addFileToFilesByName(file, path, redirectedPath);
+            if (file) {
+                sourceFilesFoundSearchingNodeModules.set(path, currentNodeModulesDepth > 0);
+                file.fileName = fileName;
+                file.path = path;
+                file.resolvedPath = toPath(fileName);
+                file.originalFileName = originalFileName;
+                addFileToRefFileMap(fileName, file, refFile);
+                if (host.useCaseSensitiveFileNames()) {
+                    var pathLowerCase = ts.toFileNameLowerCase(path);
+                    var existingFile = filesByNameIgnoreCase.get(pathLowerCase);
+                    if (existingFile) {
+                        reportFileNamesDifferOnlyInCasingError(fileName, existingFile, refFile);
+                    }
+                    else {
+                        filesByNameIgnoreCase.set(pathLowerCase, file);
+                    }
+                }
+                skipDefaultLib = skipDefaultLib || (file.hasNoDefaultLib && !ignoreNoDefaultLib);
+                if (!options.noResolve) {
+                    processReferencedFiles(file, isDefaultLib);
+                    processTypeReferenceDirectives(file);
+                }
+                if (!options.noLib) {
+                    processLibReferenceDirectives(file);
+                }
+                processImportedModules(file);
+                if (isDefaultLib) {
+                    processingDefaultLibFiles.push(file);
+                }
+                else {
+                    processingOtherFiles.push(file);
+                }
+            }
+            return file;
+        }
+        function addFileToRefFileMap(referencedFileName, file, refFile) {
+            if (refFile && file) {
+                (refFileMap || (refFileMap = ts.createMultiMap())).add(file.path, {
+                    referencedFileName: referencedFileName,
+                    kind: refFile.kind,
+                    index: refFile.index,
+                    file: refFile.file.path
+                });
+            }
+        }
+        function addFileToFilesByName(file, path, redirectedPath) {
+            if (redirectedPath) {
+                filesByName.set(redirectedPath, file);
+                filesByName.set(path, file || false);
+            }
+            else {
+                filesByName.set(path, file);
+            }
+        }
+        function getProjectReferenceRedirect(fileName) {
+            var referencedProject = getProjectReferenceRedirectProject(fileName);
+            return referencedProject && getProjectReferenceOutputName(referencedProject, fileName);
+        }
+        function getProjectReferenceRedirectProject(fileName) {
+            if (!resolvedProjectReferences || !resolvedProjectReferences.length || ts.fileExtensionIs(fileName, ".d.ts") || ts.fileExtensionIs(fileName, ".json")) {
+                return undefined;
+            }
+            return getResolvedProjectReferenceToRedirect(fileName);
+        }
+        function getProjectReferenceOutputName(referencedProject, fileName) {
+            var out = referencedProject.commandLine.options.outFile || referencedProject.commandLine.options.out;
+            return out ?
+                ts.changeExtension(out, ".d.ts") :
+                ts.getOutputDeclarationFileName(fileName, referencedProject.commandLine, !host.useCaseSensitiveFileNames());
+        }
+        function getResolvedProjectReferenceToRedirect(fileName) {
+            if (mapFromFileToProjectReferenceRedirects === undefined) {
+                mapFromFileToProjectReferenceRedirects = ts.createMap();
+                forEachResolvedProjectReference(function (referencedProject, referenceProjectPath) {
+                    if (referencedProject &&
+                        toPath(options.configFilePath) !== referenceProjectPath) {
+                        referencedProject.commandLine.fileNames.forEach(function (f) {
+                            return mapFromFileToProjectReferenceRedirects.set(toPath(f), referenceProjectPath);
+                        });
+                    }
+                });
+            }
+            var referencedProjectPath = mapFromFileToProjectReferenceRedirects.get(toPath(fileName));
+            return referencedProjectPath && getResolvedProjectReferenceByPath(referencedProjectPath);
+        }
+        function forEachResolvedProjectReference(cb) {
+            return forEachProjectReference(projectReferences, resolvedProjectReferences, function (resolvedRef, index, parent) {
+                var ref = (parent ? parent.commandLine.projectReferences : projectReferences)[index];
+                var resolvedRefPath = toPath(resolveProjectReferencePath(ref));
+                return cb(resolvedRef, resolvedRefPath);
+            });
+        }
+        function getSourceOfProjectReferenceRedirect(file) {
+            if (!ts.isDeclarationFileName(file))
+                return undefined;
+            if (mapFromToProjectReferenceRedirectSource === undefined) {
+                mapFromToProjectReferenceRedirectSource = ts.createMap();
+                forEachResolvedProjectReference(function (resolvedRef) {
+                    if (resolvedRef) {
+                        var out = resolvedRef.commandLine.options.outFile || resolvedRef.commandLine.options.out;
+                        if (out) {
+                            var outputDts = ts.changeExtension(out, ".d.ts");
+                            mapFromToProjectReferenceRedirectSource.set(toPath(outputDts), true);
+                        }
+                        else {
+                            ts.forEach(resolvedRef.commandLine.fileNames, function (fileName) {
+                                if (!ts.fileExtensionIs(fileName, ".d.ts") && !ts.fileExtensionIs(fileName, ".json")) {
+                                    var outputDts = ts.getOutputDeclarationFileName(fileName, resolvedRef.commandLine, host.useCaseSensitiveFileNames());
+                                    mapFromToProjectReferenceRedirectSource.set(toPath(outputDts), fileName);
+                                }
+                            });
+                        }
+                    }
+                });
+            }
+            return mapFromToProjectReferenceRedirectSource.get(toPath(file));
+        }
+        function isSourceOfProjectReferenceRedirect(fileName) {
+            return useSourceOfProjectReferenceRedirect && !!getResolvedProjectReferenceToRedirect(fileName);
+        }
+        function forEachProjectReference(projectReferences, resolvedProjectReferences, cbResolvedRef, cbRef) {
+            var seenResolvedRefs;
+            return worker(projectReferences, resolvedProjectReferences, undefined, cbResolvedRef, cbRef);
+            function worker(projectReferences, resolvedProjectReferences, parent, cbResolvedRef, cbRef) {
+                if (cbRef) {
+                    var result = cbRef(projectReferences, parent);
+                    if (result) {
+                        return result;
+                    }
+                }
+                return ts.forEach(resolvedProjectReferences, function (resolvedRef, index) {
+                    if (ts.contains(seenResolvedRefs, resolvedRef)) {
+                        return undefined;
+                    }
+                    var result = cbResolvedRef(resolvedRef, index, parent);
+                    if (result) {
+                        return result;
+                    }
+                    if (!resolvedRef)
+                        return undefined;
+                    (seenResolvedRefs || (seenResolvedRefs = [])).push(resolvedRef);
+                    return worker(resolvedRef.commandLine.projectReferences, resolvedRef.references, resolvedRef, cbResolvedRef, cbRef);
+                });
+            }
+        }
+        function getResolvedProjectReferenceByPath(projectReferencePath) {
+            if (!projectReferenceRedirects) {
+                return undefined;
+            }
+            return projectReferenceRedirects.get(projectReferencePath) || undefined;
+        }
+        function processReferencedFiles(file, isDefaultLib) {
+            ts.forEach(file.referencedFiles, function (ref, index) {
+                var referencedFileName = resolveTripleslashReference(ref.fileName, file.originalFileName);
+                processSourceFile(referencedFileName, isDefaultLib, false, undefined, {
+                    kind: ts.RefFileKind.ReferenceFile,
+                    index: index,
+                    file: file,
+                    pos: ref.pos,
+                    end: ref.end
+                });
+            });
+        }
+        function processTypeReferenceDirectives(file) {
+            var typeDirectives = ts.map(file.typeReferenceDirectives, function (ref) { return ts.toFileNameLowerCase(ref.fileName); });
+            if (!typeDirectives) {
+                return;
+            }
+            var resolutions = resolveTypeReferenceDirectiveNamesWorker(typeDirectives, file.originalFileName, getResolvedProjectReferenceToRedirect(file.originalFileName));
+            for (var i = 0; i < typeDirectives.length; i++) {
+                var ref = file.typeReferenceDirectives[i];
+                var resolvedTypeReferenceDirective = resolutions[i];
+                var fileName = ts.toFileNameLowerCase(ref.fileName);
+                ts.setResolvedTypeReferenceDirective(file, fileName, resolvedTypeReferenceDirective);
+                processTypeReferenceDirective(fileName, resolvedTypeReferenceDirective, {
+                    kind: ts.RefFileKind.TypeReferenceDirective,
+                    index: i,
+                    file: file,
+                    pos: ref.pos,
+                    end: ref.end
+                });
+            }
+        }
+        function processTypeReferenceDirective(typeReferenceDirective, resolvedTypeReferenceDirective, refFile) {
+            var previousResolution = resolvedTypeReferenceDirectives.get(typeReferenceDirective);
+            if (previousResolution && previousResolution.primary) {
+                return;
+            }
+            var saveResolution = true;
+            if (resolvedTypeReferenceDirective) {
+                if (resolvedTypeReferenceDirective.isExternalLibraryImport)
+                    currentNodeModulesDepth++;
+                if (resolvedTypeReferenceDirective.primary) {
+                    processSourceFile(resolvedTypeReferenceDirective.resolvedFileName, false, false, resolvedTypeReferenceDirective.packageId, refFile);
+                }
+                else {
+                    if (previousResolution) {
+                        if (resolvedTypeReferenceDirective.resolvedFileName !== previousResolution.resolvedFileName) {
+                            var otherFileText = host.readFile(resolvedTypeReferenceDirective.resolvedFileName);
+                            var existingFile_1 = getSourceFile(previousResolution.resolvedFileName);
+                            if (otherFileText !== existingFile_1.text) {
+                                var refs = !refFile ? refFileMap && refFileMap.get(existingFile_1.path) : undefined;
+                                var refToReportErrorOn = refs && ts.find(refs, function (ref) { return ref.referencedFileName === existingFile_1.fileName; });
+                                fileProcessingDiagnostics.add(refToReportErrorOn ?
+                                    createFileDiagnosticAtReference(refToReportErrorOn, ts.Diagnostics.Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_library_to_resolve_the_conflict, typeReferenceDirective, resolvedTypeReferenceDirective.resolvedFileName, previousResolution.resolvedFileName) :
+                                    createRefFileDiagnostic(refFile, ts.Diagnostics.Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_library_to_resolve_the_conflict, typeReferenceDirective, resolvedTypeReferenceDirective.resolvedFileName, previousResolution.resolvedFileName));
+                            }
+                        }
+                        saveResolution = false;
+                    }
+                    else {
+                        processSourceFile(resolvedTypeReferenceDirective.resolvedFileName, false, false, resolvedTypeReferenceDirective.packageId, refFile);
+                    }
+                }
+                if (resolvedTypeReferenceDirective.isExternalLibraryImport)
+                    currentNodeModulesDepth--;
+            }
+            else {
+                fileProcessingDiagnostics.add(createRefFileDiagnostic(refFile, ts.Diagnostics.Cannot_find_type_definition_file_for_0, typeReferenceDirective));
+            }
+            if (saveResolution) {
+                resolvedTypeReferenceDirectives.set(typeReferenceDirective, resolvedTypeReferenceDirective);
+            }
+        }
+        function processLibReferenceDirectives(file) {
+            ts.forEach(file.libReferenceDirectives, function (libReference) {
+                var libName = ts.toFileNameLowerCase(libReference.fileName);
+                var libFileName = ts.libMap.get(libName);
+                if (libFileName) {
+                    processRootFile(ts.combinePaths(defaultLibraryPath, libFileName), true, true);
+                }
+                else {
+                    var unqualifiedLibName = ts.removeSuffix(ts.removePrefix(libName, "lib."), ".d.ts");
+                    var suggestion = ts.getSpellingSuggestion(unqualifiedLibName, ts.libs, ts.identity);
+                    var message = suggestion ? ts.Diagnostics.Cannot_find_lib_definition_for_0_Did_you_mean_1 : ts.Diagnostics.Cannot_find_lib_definition_for_0;
+                    fileProcessingDiagnostics.add(ts.createFileDiagnostic(file, libReference.pos, libReference.end - libReference.pos, message, libName, suggestion));
+                }
+            });
+        }
+        function createRefFileDiagnostic(refFile, message) {
+            var args = [];
+            for (var _i = 2; _i < arguments.length; _i++) {
+                args[_i - 2] = arguments[_i];
+            }
+            if (!refFile) {
+                return ts.createCompilerDiagnostic.apply(void 0, __spreadArrays([message], args));
+            }
+            else {
+                return ts.createFileDiagnostic.apply(void 0, __spreadArrays([refFile.file, refFile.pos, refFile.end - refFile.pos, message], args));
+            }
+        }
+        function getCanonicalFileName(fileName) {
+            return host.getCanonicalFileName(fileName);
+        }
+        function processImportedModules(file) {
+            collectExternalModuleReferences(file);
+            if (file.imports.length || file.moduleAugmentations.length) {
+                var moduleNames = getModuleNames(file);
+                var resolutions = resolveModuleNamesReusingOldState(moduleNames, ts.getNormalizedAbsolutePath(file.originalFileName, currentDirectory), file);
+                ts.Debug.assert(resolutions.length === moduleNames.length);
+                for (var i = 0; i < moduleNames.length; i++) {
+                    var resolution = resolutions[i];
+                    ts.setResolvedModule(file, moduleNames[i], resolution);
+                    if (!resolution) {
+                        continue;
+                    }
+                    var isFromNodeModulesSearch = resolution.isExternalLibraryImport;
+                    var isJsFile = !ts.resolutionExtensionIsTSOrJson(resolution.extension);
+                    var isJsFileFromNodeModules = isFromNodeModulesSearch && isJsFile;
+                    var resolvedFileName = resolution.resolvedFileName;
+                    if (isFromNodeModulesSearch) {
+                        currentNodeModulesDepth++;
+                    }
+                    var elideImport = isJsFileFromNodeModules && currentNodeModulesDepth > maxNodeModuleJsDepth;
+                    var shouldAddFile = resolvedFileName
+                        && !getResolutionDiagnostic(options, resolution)
+                        && !options.noResolve
+                        && i < file.imports.length
+                        && !elideImport
+                        && !(isJsFile && !options.allowJs)
+                        && (ts.isInJSFile(file.imports[i]) || !(file.imports[i].flags & 4194304));
+                    if (elideImport) {
+                        modulesWithElidedImports.set(file.path, true);
+                    }
+                    else if (shouldAddFile) {
+                        var path = toPath(resolvedFileName);
+                        var pos = ts.skipTrivia(file.text, file.imports[i].pos);
+                        findSourceFile(resolvedFileName, path, false, false, {
+                            kind: ts.RefFileKind.Import,
+                            index: i,
+                            file: file,
+                            pos: pos,
+                            end: file.imports[i].end
+                        }, resolution.packageId);
+                    }
+                    if (isFromNodeModulesSearch) {
+                        currentNodeModulesDepth--;
+                    }
+                }
+            }
+            else {
+                file.resolvedModules = undefined;
+            }
+        }
+        function computeCommonSourceDirectory(sourceFiles) {
+            var fileNames = ts.mapDefined(sourceFiles, function (file) { return file.isDeclarationFile ? undefined : file.fileName; });
+            return computeCommonSourceDirectoryOfFilenames(fileNames, currentDirectory, getCanonicalFileName);
+        }
+        function checkSourceFilesBelongToPath(sourceFiles, rootDirectory) {
+            var allFilesBelongToPath = true;
+            var absoluteRootDirectoryPath = host.getCanonicalFileName(ts.getNormalizedAbsolutePath(rootDirectory, currentDirectory));
+            var rootPaths;
+            for (var _i = 0, sourceFiles_2 = sourceFiles; _i < sourceFiles_2.length; _i++) {
+                var sourceFile = sourceFiles_2[_i];
+                if (!sourceFile.isDeclarationFile) {
+                    var absoluteSourceFilePath = host.getCanonicalFileName(ts.getNormalizedAbsolutePath(sourceFile.fileName, currentDirectory));
+                    if (absoluteSourceFilePath.indexOf(absoluteRootDirectoryPath) !== 0) {
+                        if (!rootPaths)
+                            rootPaths = ts.arrayToSet(rootNames, toPath);
+                        addProgramDiagnosticAtRefPath(sourceFile, rootPaths, ts.Diagnostics.File_0_is_not_under_rootDir_1_rootDir_is_expected_to_contain_all_source_files, sourceFile.fileName, rootDirectory);
+                        allFilesBelongToPath = false;
+                    }
+                }
+            }
+            return allFilesBelongToPath;
+        }
+        function parseProjectReferenceConfigFile(ref) {
+            if (!projectReferenceRedirects) {
+                projectReferenceRedirects = ts.createMap();
+            }
+            var refPath = resolveProjectReferencePath(ref);
+            var sourceFilePath = toPath(refPath);
+            var fromCache = projectReferenceRedirects.get(sourceFilePath);
+            if (fromCache !== undefined) {
+                return fromCache || undefined;
+            }
+            var commandLine;
+            var sourceFile;
+            if (host.getParsedCommandLine) {
+                commandLine = host.getParsedCommandLine(refPath);
+                if (!commandLine) {
+                    addFileToFilesByName(undefined, sourceFilePath, undefined);
+                    projectReferenceRedirects.set(sourceFilePath, false);
+                    return undefined;
+                }
+                sourceFile = ts.Debug.checkDefined(commandLine.options.configFile);
+                ts.Debug.assert(!sourceFile.path || sourceFile.path === sourceFilePath);
+                addFileToFilesByName(sourceFile, sourceFilePath, undefined);
+            }
+            else {
+                var basePath = ts.getNormalizedAbsolutePath(ts.getDirectoryPath(refPath), host.getCurrentDirectory());
+                sourceFile = host.getSourceFile(refPath, 100);
+                addFileToFilesByName(sourceFile, sourceFilePath, undefined);
+                if (sourceFile === undefined) {
+                    projectReferenceRedirects.set(sourceFilePath, false);
+                    return undefined;
+                }
+                commandLine = ts.parseJsonSourceFileConfigFileContent(sourceFile, configParsingHost, basePath, undefined, refPath);
+            }
+            sourceFile.fileName = refPath;
+            sourceFile.path = sourceFilePath;
+            sourceFile.resolvedPath = sourceFilePath;
+            sourceFile.originalFileName = refPath;
+            var resolvedRef = { commandLine: commandLine, sourceFile: sourceFile };
+            projectReferenceRedirects.set(sourceFilePath, resolvedRef);
+            if (commandLine.projectReferences) {
+                resolvedRef.references = commandLine.projectReferences.map(parseProjectReferenceConfigFile);
+            }
+            return resolvedRef;
+        }
+        function verifyCompilerOptions() {
+            if (options.strictPropertyInitialization && !ts.getStrictOptionValue(options, "strictNullChecks")) {
+                createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1, "strictPropertyInitialization", "strictNullChecks");
+            }
+            if (options.isolatedModules) {
+                if (options.out) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "out", "isolatedModules");
+                }
+                if (options.outFile) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "outFile", "isolatedModules");
+                }
+            }
+            if (options.inlineSourceMap) {
+                if (options.sourceMap) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "sourceMap", "inlineSourceMap");
+                }
+                if (options.mapRoot) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "mapRoot", "inlineSourceMap");
+                }
+            }
+            if (options.paths && options.baseUrl === undefined) {
+                createDiagnosticForOptionName(ts.Diagnostics.Option_paths_cannot_be_used_without_specifying_baseUrl_option, "paths");
+            }
+            if (options.composite) {
+                if (options.declaration === false) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Composite_projects_may_not_disable_declaration_emit, "declaration");
+                }
+                if (options.incremental === false) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Composite_projects_may_not_disable_incremental_compilation, "declaration");
+                }
+            }
+            if (options.tsBuildInfoFile) {
+                if (!ts.isIncrementalCompilation(options)) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1_or_option_2, "tsBuildInfoFile", "incremental", "composite");
+                }
+            }
+            else if (options.incremental && !options.outFile && !options.out && !options.configFilePath) {
+                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_incremental_can_only_be_specified_using_tsconfig_emitting_to_single_file_or_when_option_tsBuildInfoFile_is_specified));
+            }
+            if (!options.listFilesOnly && options.noEmit && ts.isIncrementalCompilation(options)) {
+                createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "noEmit", options.incremental ? "incremental" : "composite");
+            }
+            verifyProjectReferences();
+            if (options.composite) {
+                var rootPaths = ts.arrayToSet(rootNames, toPath);
+                for (var _i = 0, files_3 = files; _i < files_3.length; _i++) {
+                    var file = files_3[_i];
+                    if (ts.sourceFileMayBeEmitted(file, program) && !rootPaths.has(file.path)) {
+                        addProgramDiagnosticAtRefPath(file, rootPaths, ts.Diagnostics.File_0_is_not_listed_within_the_file_list_of_project_1_Projects_must_list_all_files_or_use_an_include_pattern, file.fileName, options.configFilePath || "");
+                    }
+                }
+            }
+            if (options.paths) {
+                for (var key in options.paths) {
+                    if (!ts.hasProperty(options.paths, key)) {
+                        continue;
+                    }
+                    if (!ts.hasZeroOrOneAsteriskCharacter(key)) {
+                        createDiagnosticForOptionPaths(true, key, ts.Diagnostics.Pattern_0_can_have_at_most_one_Asterisk_character, key);
+                    }
+                    if (ts.isArray(options.paths[key])) {
+                        var len = options.paths[key].length;
+                        if (len === 0) {
+                            createDiagnosticForOptionPaths(false, key, ts.Diagnostics.Substitutions_for_pattern_0_shouldn_t_be_an_empty_array, key);
+                        }
+                        for (var i = 0; i < len; i++) {
+                            var subst = options.paths[key][i];
+                            var typeOfSubst = typeof subst;
+                            if (typeOfSubst === "string") {
+                                if (!ts.hasZeroOrOneAsteriskCharacter(subst)) {
+                                    createDiagnosticForOptionPathKeyValue(key, i, ts.Diagnostics.Substitution_0_in_pattern_1_can_have_at_most_one_Asterisk_character, subst, key);
+                                }
+                            }
+                            else {
+                                createDiagnosticForOptionPathKeyValue(key, i, ts.Diagnostics.Substitution_0_for_pattern_1_has_incorrect_type_expected_string_got_2, subst, key, typeOfSubst);
+                            }
+                        }
+                    }
+                    else {
+                        createDiagnosticForOptionPaths(false, key, ts.Diagnostics.Substitutions_for_pattern_0_should_be_an_array, key);
+                    }
+                }
+            }
+            if (!options.sourceMap && !options.inlineSourceMap) {
+                if (options.inlineSources) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Option_0_can_only_be_used_when_either_option_inlineSourceMap_or_option_sourceMap_is_provided, "inlineSources");
+                }
+                if (options.sourceRoot) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Option_0_can_only_be_used_when_either_option_inlineSourceMap_or_option_sourceMap_is_provided, "sourceRoot");
+                }
+            }
+            if (options.out && options.outFile) {
+                createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "out", "outFile");
+            }
+            if (options.mapRoot && !(options.sourceMap || options.declarationMap)) {
+                createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1_or_option_2, "mapRoot", "sourceMap", "declarationMap");
+            }
+            if (options.declarationDir) {
+                if (!ts.getEmitDeclarations(options)) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1_or_option_2, "declarationDir", "declaration", "composite");
+                }
+                if (options.out || options.outFile) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "declarationDir", options.out ? "out" : "outFile");
+                }
+            }
+            if (options.declarationMap && !ts.getEmitDeclarations(options)) {
+                createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1_or_option_2, "declarationMap", "declaration", "composite");
+            }
+            if (options.lib && options.noLib) {
+                createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "lib", "noLib");
+            }
+            if (options.noImplicitUseStrict && ts.getStrictOptionValue(options, "alwaysStrict")) {
+                createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "noImplicitUseStrict", "alwaysStrict");
+            }
+            var languageVersion = options.target || 0;
+            var outFile = options.outFile || options.out;
+            var firstNonAmbientExternalModuleSourceFile = ts.find(files, function (f) { return ts.isExternalModule(f) && !f.isDeclarationFile; });
+            if (options.isolatedModules) {
+                if (options.module === ts.ModuleKind.None && languageVersion < 2) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Option_isolatedModules_can_only_be_used_when_either_option_module_is_provided_or_option_target_is_ES2015_or_higher, "isolatedModules", "target");
+                }
+                var firstNonExternalModuleSourceFile = ts.find(files, function (f) { return !ts.isExternalModule(f) && !ts.isSourceFileJS(f) && !f.isDeclarationFile && f.scriptKind !== 6; });
+                if (firstNonExternalModuleSourceFile) {
+                    var span = ts.getErrorSpanForNode(firstNonExternalModuleSourceFile, firstNonExternalModuleSourceFile);
+                    programDiagnostics.add(ts.createFileDiagnostic(firstNonExternalModuleSourceFile, span.start, span.length, ts.Diagnostics.All_files_must_be_modules_when_the_isolatedModules_flag_is_provided));
+                }
+            }
+            else if (firstNonAmbientExternalModuleSourceFile && languageVersion < 2 && options.module === ts.ModuleKind.None) {
+                var span = ts.getErrorSpanForNode(firstNonAmbientExternalModuleSourceFile, firstNonAmbientExternalModuleSourceFile.externalModuleIndicator);
+                programDiagnostics.add(ts.createFileDiagnostic(firstNonAmbientExternalModuleSourceFile, span.start, span.length, ts.Diagnostics.Cannot_use_imports_exports_or_module_augmentations_when_module_is_none));
+            }
+            if (outFile && !options.emitDeclarationOnly) {
+                if (options.module && !(options.module === ts.ModuleKind.AMD || options.module === ts.ModuleKind.System)) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Only_amd_and_system_modules_are_supported_alongside_0, options.out ? "out" : "outFile", "module");
+                }
+                else if (options.module === undefined && firstNonAmbientExternalModuleSourceFile) {
+                    var span = ts.getErrorSpanForNode(firstNonAmbientExternalModuleSourceFile, firstNonAmbientExternalModuleSourceFile.externalModuleIndicator);
+                    programDiagnostics.add(ts.createFileDiagnostic(firstNonAmbientExternalModuleSourceFile, span.start, span.length, ts.Diagnostics.Cannot_compile_modules_using_option_0_unless_the_module_flag_is_amd_or_system, options.out ? "out" : "outFile"));
+                }
+            }
+            if (options.resolveJsonModule) {
+                if (ts.getEmitModuleResolutionKind(options) !== ts.ModuleResolutionKind.NodeJs) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Option_resolveJsonModule_cannot_be_specified_without_node_module_resolution_strategy, "resolveJsonModule");
+                }
+                else if (!ts.hasJsonModuleEmitEnabled(options)) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Option_resolveJsonModule_can_only_be_specified_when_module_code_generation_is_commonjs_amd_es2015_or_esNext, "resolveJsonModule", "module");
+                }
+            }
+            if (options.outDir ||
+                options.sourceRoot ||
+                options.mapRoot) {
+                var dir = getCommonSourceDirectory();
+                if (options.outDir && dir === "" && files.some(function (file) { return ts.getRootLength(file.fileName) > 1; })) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Cannot_find_the_common_subdirectory_path_for_the_input_files, "outDir");
+                }
+            }
+            if (options.useDefineForClassFields && languageVersion === 0) {
+                createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_when_option_target_is_ES3, "useDefineForClassFields");
+            }
+            if (options.checkJs && !options.allowJs) {
+                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1, "checkJs", "allowJs"));
+            }
+            if (options.emitDeclarationOnly) {
+                if (!ts.getEmitDeclarations(options)) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1_or_option_2, "emitDeclarationOnly", "declaration", "composite");
+                }
+                if (options.noEmit) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "emitDeclarationOnly", "noEmit");
+                }
+            }
+            if (options.emitDecoratorMetadata &&
+                !options.experimentalDecorators) {
+                createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1, "emitDecoratorMetadata", "experimentalDecorators");
+            }
+            if (options.jsxFactory) {
+                if (options.reactNamespace) {
+                    createDiagnosticForOptionName(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "reactNamespace", "jsxFactory");
+                }
+                if (!ts.parseIsolatedEntityName(options.jsxFactory, languageVersion)) {
+                    createOptionValueDiagnostic("jsxFactory", ts.Diagnostics.Invalid_value_for_jsxFactory_0_is_not_a_valid_identifier_or_qualified_name, options.jsxFactory);
+                }
+            }
+            else if (options.reactNamespace && !ts.isIdentifierText(options.reactNamespace, languageVersion)) {
+                createOptionValueDiagnostic("reactNamespace", ts.Diagnostics.Invalid_value_for_reactNamespace_0_is_not_a_valid_identifier, options.reactNamespace);
+            }
+            if (!options.noEmit && !options.suppressOutputPathCheck) {
+                var emitHost = getEmitHost();
+                var emitFilesSeen_1 = ts.createMap();
+                ts.forEachEmittedFile(emitHost, function (emitFileNames) {
+                    if (!options.emitDeclarationOnly) {
+                        verifyEmitFilePath(emitFileNames.jsFilePath, emitFilesSeen_1);
+                    }
+                    verifyEmitFilePath(emitFileNames.declarationFilePath, emitFilesSeen_1);
+                });
+            }
+            function verifyEmitFilePath(emitFileName, emitFilesSeen) {
+                if (emitFileName) {
+                    var emitFilePath = toPath(emitFileName);
+                    if (filesByName.has(emitFilePath)) {
+                        var chain = void 0;
+                        if (!options.configFilePath) {
+                            chain = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript_files_Learn_more_at_https_Colon_Slash_Slashaka_ms_Slashtsconfig);
+                        }
+                        chain = ts.chainDiagnosticMessages(chain, ts.Diagnostics.Cannot_write_file_0_because_it_would_overwrite_input_file, emitFileName);
+                        blockEmittingOfFile(emitFileName, ts.createCompilerDiagnosticFromMessageChain(chain));
+                    }
+                    var emitFileKey = !host.useCaseSensitiveFileNames() ? ts.toFileNameLowerCase(emitFilePath) : emitFilePath;
+                    if (emitFilesSeen.has(emitFileKey)) {
+                        blockEmittingOfFile(emitFileName, ts.createCompilerDiagnostic(ts.Diagnostics.Cannot_write_file_0_because_it_would_be_overwritten_by_multiple_input_files, emitFileName));
+                    }
+                    else {
+                        emitFilesSeen.set(emitFileKey, true);
+                    }
+                }
+            }
+        }
+        function createFileDiagnosticAtReference(refPathToReportErrorOn, message) {
+            var _a, _b;
+            var args = [];
+            for (var _i = 2; _i < arguments.length; _i++) {
+                args[_i - 2] = arguments[_i];
+            }
+            var refFile = ts.Debug.checkDefined(getSourceFileByPath(refPathToReportErrorOn.file));
+            var kind = refPathToReportErrorOn.kind, index = refPathToReportErrorOn.index;
+            var pos, end;
+            switch (kind) {
+                case ts.RefFileKind.Import:
+                    pos = ts.skipTrivia(refFile.text, refFile.imports[index].pos);
+                    end = refFile.imports[index].end;
+                    break;
+                case ts.RefFileKind.ReferenceFile:
+                    (_a = refFile.referencedFiles[index], pos = _a.pos, end = _a.end);
+                    break;
+                case ts.RefFileKind.TypeReferenceDirective:
+                    (_b = refFile.typeReferenceDirectives[index], pos = _b.pos, end = _b.end);
+                    break;
+                default:
+                    return ts.Debug.assertNever(kind);
+            }
+            return ts.createFileDiagnostic.apply(void 0, __spreadArrays([refFile, pos, end - pos, message], args));
+        }
+        function addProgramDiagnosticAtRefPath(file, rootPaths, message) {
+            var args = [];
+            for (var _i = 3; _i < arguments.length; _i++) {
+                args[_i - 3] = arguments[_i];
+            }
+            var refPaths = refFileMap && refFileMap.get(file.path);
+            var refPathToReportErrorOn = ts.forEach(refPaths, function (refPath) { return rootPaths.has(refPath.file) ? refPath : undefined; }) ||
+                ts.elementAt(refPaths, 0);
+            programDiagnostics.add(refPathToReportErrorOn ? createFileDiagnosticAtReference.apply(void 0, __spreadArrays([refPathToReportErrorOn, message], args)) : ts.createCompilerDiagnostic.apply(void 0, __spreadArrays([message], args)));
+        }
+        function verifyProjectReferences() {
+            var buildInfoPath = !options.noEmit && !options.suppressOutputPathCheck ? ts.getTsBuildInfoEmitOutputFilePath(options) : undefined;
+            forEachProjectReference(projectReferences, resolvedProjectReferences, function (resolvedRef, index, parent) {
+                var ref = (parent ? parent.commandLine.projectReferences : projectReferences)[index];
+                var parentFile = parent && parent.sourceFile;
+                if (!resolvedRef) {
+                    createDiagnosticForReference(parentFile, index, ts.Diagnostics.File_0_not_found, ref.path);
+                    return;
+                }
+                var options = resolvedRef.commandLine.options;
+                if (!options.composite) {
+                    var inputs = parent ? parent.commandLine.fileNames : rootNames;
+                    if (inputs.length) {
+                        createDiagnosticForReference(parentFile, index, ts.Diagnostics.Referenced_project_0_must_have_setting_composite_Colon_true, ref.path);
+                    }
+                }
+                if (ref.prepend) {
+                    var out = options.outFile || options.out;
+                    if (out) {
+                        if (!host.fileExists(out)) {
+                            createDiagnosticForReference(parentFile, index, ts.Diagnostics.Output_file_0_from_project_1_does_not_exist, out, ref.path);
+                        }
+                    }
+                    else {
+                        createDiagnosticForReference(parentFile, index, ts.Diagnostics.Cannot_prepend_project_0_because_it_does_not_have_outFile_set, ref.path);
+                    }
+                }
+                if (!parent && buildInfoPath && buildInfoPath === ts.getTsBuildInfoEmitOutputFilePath(options)) {
+                    createDiagnosticForReference(parentFile, index, ts.Diagnostics.Cannot_write_file_0_because_it_will_overwrite_tsbuildinfo_file_generated_by_referenced_project_1, buildInfoPath, ref.path);
+                    hasEmitBlockingDiagnostics.set(toPath(buildInfoPath), true);
+                }
+            });
+        }
+        function createDiagnosticForOptionPathKeyValue(key, valueIndex, message, arg0, arg1, arg2) {
+            var needCompilerDiagnostic = true;
+            var pathsSyntax = getOptionPathsSyntax();
+            for (var _i = 0, pathsSyntax_1 = pathsSyntax; _i < pathsSyntax_1.length; _i++) {
+                var pathProp = pathsSyntax_1[_i];
+                if (ts.isObjectLiteralExpression(pathProp.initializer)) {
+                    for (var _a = 0, _b = ts.getPropertyAssignment(pathProp.initializer, key); _a < _b.length; _a++) {
+                        var keyProps = _b[_a];
+                        var initializer = keyProps.initializer;
+                        if (ts.isArrayLiteralExpression(initializer) && initializer.elements.length > valueIndex) {
+                            programDiagnostics.add(ts.createDiagnosticForNodeInSourceFile(options.configFile, initializer.elements[valueIndex], message, arg0, arg1, arg2));
+                            needCompilerDiagnostic = false;
+                        }
+                    }
+                }
+            }
+            if (needCompilerDiagnostic) {
+                programDiagnostics.add(ts.createCompilerDiagnostic(message, arg0, arg1, arg2));
+            }
+        }
+        function createDiagnosticForOptionPaths(onKey, key, message, arg0) {
+            var needCompilerDiagnostic = true;
+            var pathsSyntax = getOptionPathsSyntax();
+            for (var _i = 0, pathsSyntax_2 = pathsSyntax; _i < pathsSyntax_2.length; _i++) {
+                var pathProp = pathsSyntax_2[_i];
+                if (ts.isObjectLiteralExpression(pathProp.initializer) &&
+                    createOptionDiagnosticInObjectLiteralSyntax(pathProp.initializer, onKey, key, undefined, message, arg0)) {
+                    needCompilerDiagnostic = false;
+                }
+            }
+            if (needCompilerDiagnostic) {
+                programDiagnostics.add(ts.createCompilerDiagnostic(message, arg0));
+            }
+        }
+        function getOptionsSyntaxByName(name) {
+            var compilerOptionsObjectLiteralSyntax = getCompilerOptionsObjectLiteralSyntax();
+            if (compilerOptionsObjectLiteralSyntax) {
+                return ts.getPropertyAssignment(compilerOptionsObjectLiteralSyntax, name);
+            }
+            return undefined;
+        }
+        function getOptionPathsSyntax() {
+            return getOptionsSyntaxByName("paths") || ts.emptyArray;
+        }
+        function createDiagnosticForOptionName(message, option1, option2, option3) {
+            createDiagnosticForOption(true, option1, option2, message, option1, option2, option3);
+        }
+        function createOptionValueDiagnostic(option1, message, arg0) {
+            createDiagnosticForOption(false, option1, undefined, message, arg0);
+        }
+        function createDiagnosticForReference(sourceFile, index, message, arg0, arg1) {
+            var referencesSyntax = ts.firstDefined(ts.getTsConfigPropArray(sourceFile || options.configFile, "references"), function (property) { return ts.isArrayLiteralExpression(property.initializer) ? property.initializer : undefined; });
+            if (referencesSyntax && referencesSyntax.elements.length > index) {
+                programDiagnostics.add(ts.createDiagnosticForNodeInSourceFile(sourceFile || options.configFile, referencesSyntax.elements[index], message, arg0, arg1));
+            }
+            else {
+                programDiagnostics.add(ts.createCompilerDiagnostic(message, arg0, arg1));
+            }
+        }
+        function createDiagnosticForOption(onKey, option1, option2, message, arg0, arg1, arg2) {
+            var compilerOptionsObjectLiteralSyntax = getCompilerOptionsObjectLiteralSyntax();
+            var needCompilerDiagnostic = !compilerOptionsObjectLiteralSyntax ||
+                !createOptionDiagnosticInObjectLiteralSyntax(compilerOptionsObjectLiteralSyntax, onKey, option1, option2, message, arg0, arg1, arg2);
+            if (needCompilerDiagnostic) {
+                programDiagnostics.add(ts.createCompilerDiagnostic(message, arg0, arg1, arg2));
+            }
+        }
+        function getCompilerOptionsObjectLiteralSyntax() {
+            if (_compilerOptionsObjectLiteralSyntax === undefined) {
+                _compilerOptionsObjectLiteralSyntax = null;
+                var jsonObjectLiteral = ts.getTsConfigObjectLiteralExpression(options.configFile);
+                if (jsonObjectLiteral) {
+                    for (var _i = 0, _a = ts.getPropertyAssignment(jsonObjectLiteral, "compilerOptions"); _i < _a.length; _i++) {
+                        var prop = _a[_i];
+                        if (ts.isObjectLiteralExpression(prop.initializer)) {
+                            _compilerOptionsObjectLiteralSyntax = prop.initializer;
+                            break;
+                        }
+                    }
+                }
+            }
+            return _compilerOptionsObjectLiteralSyntax;
+        }
+        function createOptionDiagnosticInObjectLiteralSyntax(objectLiteral, onKey, key1, key2, message, arg0, arg1, arg2) {
+            var props = ts.getPropertyAssignment(objectLiteral, key1, key2);
+            for (var _i = 0, props_3 = props; _i < props_3.length; _i++) {
+                var prop = props_3[_i];
+                programDiagnostics.add(ts.createDiagnosticForNodeInSourceFile(options.configFile, onKey ? prop.name : prop.initializer, message, arg0, arg1, arg2));
+            }
+            return !!props.length;
+        }
+        function blockEmittingOfFile(emitFileName, diag) {
+            hasEmitBlockingDiagnostics.set(toPath(emitFileName), true);
+            programDiagnostics.add(diag);
+        }
+        function isEmittedFile(file) {
+            if (options.noEmit) {
+                return false;
+            }
+            var filePath = toPath(file);
+            if (getSourceFileByPath(filePath)) {
+                return false;
+            }
+            var out = options.outFile || options.out;
+            if (out) {
+                return isSameFile(filePath, out) || isSameFile(filePath, ts.removeFileExtension(out) + ".d.ts");
+            }
+            if (options.declarationDir && ts.containsPath(options.declarationDir, filePath, currentDirectory, !host.useCaseSensitiveFileNames())) {
+                return true;
+            }
+            if (options.outDir) {
+                return ts.containsPath(options.outDir, filePath, currentDirectory, !host.useCaseSensitiveFileNames());
+            }
+            if (ts.fileExtensionIsOneOf(filePath, ts.supportedJSExtensions) || ts.fileExtensionIs(filePath, ".d.ts")) {
+                var filePathWithoutExtension = ts.removeFileExtension(filePath);
+                return !!getSourceFileByPath((filePathWithoutExtension + ".ts")) ||
+                    !!getSourceFileByPath((filePathWithoutExtension + ".tsx"));
+            }
+            return false;
+        }
+        function isSameFile(file1, file2) {
+            return ts.comparePaths(file1, file2, currentDirectory, !host.useCaseSensitiveFileNames()) === 0;
+        }
+        function getProbableSymlinks() {
+            if (host.getSymlinks) {
+                return host.getSymlinks();
+            }
+            return symlinks || (symlinks = ts.discoverProbableSymlinks(files, getCanonicalFileName, host.getCurrentDirectory()));
+        }
+    }
+    ts.createProgram = createProgram;
+    function updateHostForUseSourceOfProjectReferenceRedirect(host) {
+        var mapOfDeclarationDirectories;
+        var symlinkedDirectories;
+        var symlinkedFiles;
+        var originalFileExists = host.compilerHost.fileExists;
+        var originalDirectoryExists = host.compilerHost.directoryExists;
+        var originalGetDirectories = host.compilerHost.getDirectories;
+        var originalRealpath = host.compilerHost.realpath;
+        if (!host.useSourceOfProjectReferenceRedirect)
+            return { onProgramCreateComplete: ts.noop, fileExists: fileExists };
+        host.compilerHost.fileExists = fileExists;
+        if (originalDirectoryExists) {
+            host.compilerHost.directoryExists = function (path) {
+                if (originalDirectoryExists.call(host.compilerHost, path)) {
+                    handleDirectoryCouldBeSymlink(path);
+                    return true;
+                }
+                if (!host.getResolvedProjectReferences())
+                    return false;
+                if (!mapOfDeclarationDirectories) {
+                    mapOfDeclarationDirectories = ts.createMap();
+                    host.forEachResolvedProjectReference(function (ref) {
+                        if (!ref)
+                            return;
+                        var out = ref.commandLine.options.outFile || ref.commandLine.options.out;
+                        if (out) {
+                            mapOfDeclarationDirectories.set(ts.getDirectoryPath(host.toPath(out)), true);
+                        }
+                        else {
+                            var declarationDir = ref.commandLine.options.declarationDir || ref.commandLine.options.outDir;
+                            if (declarationDir) {
+                                mapOfDeclarationDirectories.set(host.toPath(declarationDir), true);
+                            }
+                        }
+                    });
+                }
+                return fileOrDirectoryExistsUsingSource(path, false);
+            };
+        }
+        if (originalGetDirectories) {
+            host.compilerHost.getDirectories = function (path) {
+                return !host.getResolvedProjectReferences() || (originalDirectoryExists && originalDirectoryExists.call(host.compilerHost, path)) ?
+                    originalGetDirectories.call(host.compilerHost, path) :
+                    [];
+            };
+        }
+        if (originalRealpath) {
+            host.compilerHost.realpath = function (s) {
+                return (symlinkedFiles === null || symlinkedFiles === void 0 ? void 0 : symlinkedFiles.get(host.toPath(s))) ||
+                    originalRealpath.call(host.compilerHost, s);
+            };
+        }
+        return { onProgramCreateComplete: onProgramCreateComplete, fileExists: fileExists };
+        function onProgramCreateComplete() {
+            host.compilerHost.fileExists = originalFileExists;
+            host.compilerHost.directoryExists = originalDirectoryExists;
+            host.compilerHost.getDirectories = originalGetDirectories;
+        }
+        function fileExists(file) {
+            if (originalFileExists.call(host.compilerHost, file))
+                return true;
+            if (!host.getResolvedProjectReferences())
+                return false;
+            if (!ts.isDeclarationFileName(file))
+                return false;
+            return fileOrDirectoryExistsUsingSource(file, true);
+        }
+        function fileExistsIfProjectReferenceDts(file) {
+            var source = host.getSourceOfProjectReferenceRedirect(file);
+            return source !== undefined ?
+                ts.isString(source) ? originalFileExists.call(host.compilerHost, source) : true :
+                undefined;
+        }
+        function directoryExistsIfProjectReferenceDeclDir(dir) {
+            var dirPath = host.toPath(dir);
+            var dirPathWithTrailingDirectorySeparator = "" + dirPath + ts.directorySeparator;
+            return ts.forEachKey(mapOfDeclarationDirectories, function (declDirPath) { return dirPath === declDirPath ||
+                ts.startsWith(declDirPath, dirPathWithTrailingDirectorySeparator) ||
+                ts.startsWith(dirPath, declDirPath + "/"); });
+        }
+        function handleDirectoryCouldBeSymlink(directory) {
+            if (!host.getResolvedProjectReferences())
+                return;
+            if (!originalRealpath || !ts.stringContains(directory, ts.nodeModulesPathPart))
+                return;
+            if (!symlinkedDirectories)
+                symlinkedDirectories = ts.createMap();
+            var directoryPath = ts.ensureTrailingDirectorySeparator(host.toPath(directory));
+            if (symlinkedDirectories.has(directoryPath))
+                return;
+            var real = ts.normalizePath(originalRealpath.call(host.compilerHost, directory));
+            var realPath;
+            if (real === directory ||
+                (realPath = ts.ensureTrailingDirectorySeparator(host.toPath(real))) === directoryPath) {
+                symlinkedDirectories.set(directoryPath, false);
+                return;
+            }
+            symlinkedDirectories.set(directoryPath, {
+                real: ts.ensureTrailingDirectorySeparator(real),
+                realPath: realPath
+            });
+        }
+        function fileOrDirectoryExistsUsingSource(fileOrDirectory, isFile) {
+            var fileOrDirectoryExistsUsingSource = isFile ?
+                function (file) { return fileExistsIfProjectReferenceDts(file); } :
+                function (dir) { return directoryExistsIfProjectReferenceDeclDir(dir); };
+            var result = fileOrDirectoryExistsUsingSource(fileOrDirectory);
+            if (result !== undefined)
+                return result;
+            if (!symlinkedDirectories)
+                return false;
+            var fileOrDirectoryPath = host.toPath(fileOrDirectory);
+            if (!ts.stringContains(fileOrDirectoryPath, ts.nodeModulesPathPart))
+                return false;
+            if (isFile && symlinkedFiles && symlinkedFiles.has(fileOrDirectoryPath))
+                return true;
+            return ts.firstDefinedIterator(symlinkedDirectories.entries(), function (_a) {
+                var directoryPath = _a[0], symlinkedDirectory = _a[1];
+                if (!symlinkedDirectory || !ts.startsWith(fileOrDirectoryPath, directoryPath))
+                    return undefined;
+                var result = fileOrDirectoryExistsUsingSource(fileOrDirectoryPath.replace(directoryPath, symlinkedDirectory.realPath));
+                if (isFile && result) {
+                    if (!symlinkedFiles)
+                        symlinkedFiles = ts.createMap();
+                    var absolutePath = ts.getNormalizedAbsolutePath(fileOrDirectory, host.compilerHost.getCurrentDirectory());
+                    symlinkedFiles.set(fileOrDirectoryPath, "" + symlinkedDirectory.real + absolutePath.replace(new RegExp(directoryPath, "i"), ""));
+                }
+                return result;
+            }) || false;
+        }
+    }
+    function handleNoEmitOptions(program, sourceFile, cancellationToken) {
+        var options = program.getCompilerOptions();
+        if (options.noEmit) {
+            return { diagnostics: ts.emptyArray, sourceMaps: undefined, emittedFiles: undefined, emitSkipped: true };
+        }
+        if (!options.noEmitOnError)
+            return undefined;
+        var diagnostics = __spreadArrays(program.getOptionsDiagnostics(cancellationToken), program.getSyntacticDiagnostics(sourceFile, cancellationToken), program.getGlobalDiagnostics(cancellationToken), program.getSemanticDiagnostics(sourceFile, cancellationToken));
+        if (diagnostics.length === 0 && ts.getEmitDeclarations(program.getCompilerOptions())) {
+            diagnostics = program.getDeclarationDiagnostics(undefined, cancellationToken);
+        }
+        return diagnostics.length > 0 ?
+            { diagnostics: diagnostics, sourceMaps: undefined, emittedFiles: undefined, emitSkipped: true } :
+            undefined;
+    }
+    ts.handleNoEmitOptions = handleNoEmitOptions;
+    function parseConfigHostFromCompilerHostLike(host, directoryStructureHost) {
+        if (directoryStructureHost === void 0) { directoryStructureHost = host; }
+        return {
+            fileExists: function (f) { return directoryStructureHost.fileExists(f); },
+            readDirectory: function (root, extensions, excludes, includes, depth) {
+                ts.Debug.assertIsDefined(directoryStructureHost.readDirectory, "'CompilerHost.readDirectory' must be implemented to correctly process 'projectReferences'");
+                return directoryStructureHost.readDirectory(root, extensions, excludes, includes, depth);
+            },
+            readFile: function (f) { return directoryStructureHost.readFile(f); },
+            useCaseSensitiveFileNames: host.useCaseSensitiveFileNames(),
+            getCurrentDirectory: function () { return host.getCurrentDirectory(); },
+            onUnRecoverableConfigFileDiagnostic: host.onUnRecoverableConfigFileDiagnostic || ts.returnUndefined,
+            trace: host.trace ? function (s) { return host.trace(s); } : undefined
+        };
+    }
+    ts.parseConfigHostFromCompilerHostLike = parseConfigHostFromCompilerHostLike;
+    function createPrependNodes(projectReferences, getCommandLine, readFile) {
+        if (!projectReferences)
+            return ts.emptyArray;
+        var nodes;
+        for (var i = 0; i < projectReferences.length; i++) {
+            var ref = projectReferences[i];
+            var resolvedRefOpts = getCommandLine(ref, i);
+            if (ref.prepend && resolvedRefOpts && resolvedRefOpts.options) {
+                var out = resolvedRefOpts.options.outFile || resolvedRefOpts.options.out;
+                if (!out)
+                    continue;
+                var _a = ts.getOutputPathsForBundle(resolvedRefOpts.options, true), jsFilePath = _a.jsFilePath, sourceMapFilePath = _a.sourceMapFilePath, declarationFilePath = _a.declarationFilePath, declarationMapPath = _a.declarationMapPath, buildInfoPath = _a.buildInfoPath;
+                var node = ts.createInputFiles(readFile, jsFilePath, sourceMapFilePath, declarationFilePath, declarationMapPath, buildInfoPath);
+                (nodes || (nodes = [])).push(node);
+            }
+        }
+        return nodes || ts.emptyArray;
+    }
+    ts.createPrependNodes = createPrependNodes;
+    function resolveProjectReferencePath(hostOrRef, ref) {
+        var passedInRef = ref ? ref : hostOrRef;
+        return ts.resolveConfigFileProjectName(passedInRef.path);
+    }
+    ts.resolveProjectReferencePath = resolveProjectReferencePath;
+    function getResolutionDiagnostic(options, _a) {
+        var extension = _a.extension;
+        switch (extension) {
+            case ".ts":
+            case ".d.ts":
+                return undefined;
+            case ".tsx":
+                return needJsx();
+            case ".jsx":
+                return needJsx() || needAllowJs();
+            case ".js":
+                return needAllowJs();
+            case ".json":
+                return needResolveJsonModule();
+        }
+        function needJsx() {
+            return options.jsx ? undefined : ts.Diagnostics.Module_0_was_resolved_to_1_but_jsx_is_not_set;
+        }
+        function needAllowJs() {
+            return options.allowJs || !ts.getStrictOptionValue(options, "noImplicitAny") ? undefined : ts.Diagnostics.Could_not_find_a_declaration_file_for_module_0_1_implicitly_has_an_any_type;
+        }
+        function needResolveJsonModule() {
+            return options.resolveJsonModule ? undefined : ts.Diagnostics.Module_0_was_resolved_to_1_but_resolveJsonModule_is_not_used;
+        }
+    }
+    ts.getResolutionDiagnostic = getResolutionDiagnostic;
+    function getModuleNames(_a) {
+        var imports = _a.imports, moduleAugmentations = _a.moduleAugmentations;
+        var res = imports.map(function (i) { return i.text; });
+        for (var _i = 0, moduleAugmentations_1 = moduleAugmentations; _i < moduleAugmentations_1.length; _i++) {
+            var aug = moduleAugmentations_1[_i];
+            if (aug.kind === 10) {
+                res.push(aug.text);
+            }
+        }
+        return res;
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function getFileEmitOutput(program, sourceFile, emitOnlyDtsFiles, cancellationToken, customTransformers, forceDtsEmit) {
+        var outputFiles = [];
+        var _a = program.emit(sourceFile, writeFile, cancellationToken, emitOnlyDtsFiles, customTransformers, forceDtsEmit), emitSkipped = _a.emitSkipped, diagnostics = _a.diagnostics, exportedModulesFromDeclarationEmit = _a.exportedModulesFromDeclarationEmit;
+        return { outputFiles: outputFiles, emitSkipped: emitSkipped, diagnostics: diagnostics, exportedModulesFromDeclarationEmit: exportedModulesFromDeclarationEmit };
+        function writeFile(fileName, text, writeByteOrderMark) {
+            outputFiles.push({ name: fileName, writeByteOrderMark: writeByteOrderMark, text: text });
+        }
+    }
+    ts.getFileEmitOutput = getFileEmitOutput;
+    var BuilderState;
+    (function (BuilderState) {
+        function getReferencedFileFromImportedModuleSymbol(symbol) {
+            if (symbol.declarations && symbol.declarations[0]) {
+                var declarationSourceFile = ts.getSourceFileOfNode(symbol.declarations[0]);
+                return declarationSourceFile && declarationSourceFile.resolvedPath;
+            }
+        }
+        function getReferencedFileFromImportLiteral(checker, importName) {
+            var symbol = checker.getSymbolAtLocation(importName);
+            return symbol && getReferencedFileFromImportedModuleSymbol(symbol);
+        }
+        function getReferencedFileFromFileName(program, fileName, sourceFileDirectory, getCanonicalFileName) {
+            return ts.toPath(program.getProjectReferenceRedirect(fileName) || fileName, sourceFileDirectory, getCanonicalFileName);
+        }
+        function getReferencedFiles(program, sourceFile, getCanonicalFileName) {
+            var referencedFiles;
+            if (sourceFile.imports && sourceFile.imports.length > 0) {
+                var checker = program.getTypeChecker();
+                for (var _i = 0, _a = sourceFile.imports; _i < _a.length; _i++) {
+                    var importName = _a[_i];
+                    var declarationSourceFilePath = getReferencedFileFromImportLiteral(checker, importName);
+                    if (declarationSourceFilePath) {
+                        addReferencedFile(declarationSourceFilePath);
+                    }
+                }
+            }
+            var sourceFileDirectory = ts.getDirectoryPath(sourceFile.resolvedPath);
+            if (sourceFile.referencedFiles && sourceFile.referencedFiles.length > 0) {
+                for (var _b = 0, _c = sourceFile.referencedFiles; _b < _c.length; _b++) {
+                    var referencedFile = _c[_b];
+                    var referencedPath = getReferencedFileFromFileName(program, referencedFile.fileName, sourceFileDirectory, getCanonicalFileName);
+                    addReferencedFile(referencedPath);
+                }
+            }
+            if (sourceFile.resolvedTypeReferenceDirectiveNames) {
+                sourceFile.resolvedTypeReferenceDirectiveNames.forEach(function (resolvedTypeReferenceDirective) {
+                    if (!resolvedTypeReferenceDirective) {
+                        return;
+                    }
+                    var fileName = resolvedTypeReferenceDirective.resolvedFileName;
+                    var typeFilePath = getReferencedFileFromFileName(program, fileName, sourceFileDirectory, getCanonicalFileName);
+                    addReferencedFile(typeFilePath);
+                });
+            }
+            if (sourceFile.moduleAugmentations.length) {
+                var checker = program.getTypeChecker();
+                for (var _d = 0, _e = sourceFile.moduleAugmentations; _d < _e.length; _d++) {
+                    var moduleName = _e[_d];
+                    if (!ts.isStringLiteral(moduleName)) {
+                        continue;
+                    }
+                    var symbol = checker.getSymbolAtLocation(moduleName);
+                    if (!symbol) {
+                        continue;
+                    }
+                    addReferenceFromAmbientModule(symbol);
+                }
+            }
+            for (var _f = 0, _g = program.getTypeChecker().getAmbientModules(); _f < _g.length; _f++) {
+                var ambientModule = _g[_f];
+                if (ambientModule.declarations.length > 1) {
+                    addReferenceFromAmbientModule(ambientModule);
+                }
+            }
+            return referencedFiles;
+            function addReferenceFromAmbientModule(symbol) {
+                for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+                    var declaration = _a[_i];
+                    var declarationSourceFile = ts.getSourceFileOfNode(declaration);
+                    if (declarationSourceFile &&
+                        declarationSourceFile !== sourceFile) {
+                        addReferencedFile(declarationSourceFile.resolvedPath);
+                    }
+                }
+            }
+            function addReferencedFile(referencedPath) {
+                if (!referencedFiles) {
+                    referencedFiles = ts.createMap();
+                }
+                referencedFiles.set(referencedPath, true);
+            }
+        }
+        function canReuseOldState(newReferencedMap, oldState) {
+            return oldState && !oldState.referencedMap === !newReferencedMap;
+        }
+        BuilderState.canReuseOldState = canReuseOldState;
+        function create(newProgram, getCanonicalFileName, oldState) {
+            var fileInfos = ts.createMap();
+            var referencedMap = newProgram.getCompilerOptions().module !== ts.ModuleKind.None ? ts.createMap() : undefined;
+            var exportedModulesMap = referencedMap ? ts.createMap() : undefined;
+            var hasCalledUpdateShapeSignature = ts.createMap();
+            var useOldState = canReuseOldState(referencedMap, oldState);
+            for (var _i = 0, _a = newProgram.getSourceFiles(); _i < _a.length; _i++) {
+                var sourceFile = _a[_i];
+                var version_1 = ts.Debug.checkDefined(sourceFile.version, "Program intended to be used with Builder should have source files with versions set");
+                var oldInfo = useOldState ? oldState.fileInfos.get(sourceFile.resolvedPath) : undefined;
+                if (referencedMap) {
+                    var newReferences = getReferencedFiles(newProgram, sourceFile, getCanonicalFileName);
+                    if (newReferences) {
+                        referencedMap.set(sourceFile.resolvedPath, newReferences);
+                    }
+                    if (useOldState) {
+                        var exportedModules = oldState.exportedModulesMap.get(sourceFile.resolvedPath);
+                        if (exportedModules) {
+                            exportedModulesMap.set(sourceFile.resolvedPath, exportedModules);
+                        }
+                    }
+                }
+                fileInfos.set(sourceFile.resolvedPath, { version: version_1, signature: oldInfo && oldInfo.signature, affectsGlobalScope: isFileAffectingGlobalScope(sourceFile) });
+            }
+            return {
+                fileInfos: fileInfos,
+                referencedMap: referencedMap,
+                exportedModulesMap: exportedModulesMap,
+                hasCalledUpdateShapeSignature: hasCalledUpdateShapeSignature
+            };
+        }
+        BuilderState.create = create;
+        function releaseCache(state) {
+            state.allFilesExcludingDefaultLibraryFile = undefined;
+            state.allFileNames = undefined;
+        }
+        BuilderState.releaseCache = releaseCache;
+        function clone(state) {
+            var fileInfos = ts.createMap();
+            state.fileInfos.forEach(function (value, key) {
+                fileInfos.set(key, __assign({}, value));
+            });
+            return {
+                fileInfos: fileInfos,
+                referencedMap: cloneMapOrUndefined(state.referencedMap),
+                exportedModulesMap: cloneMapOrUndefined(state.exportedModulesMap),
+                hasCalledUpdateShapeSignature: ts.cloneMap(state.hasCalledUpdateShapeSignature),
+            };
+        }
+        BuilderState.clone = clone;
+        function getFilesAffectedBy(state, programOfThisState, path, cancellationToken, computeHash, cacheToUpdateSignature, exportedModulesMapCache) {
+            var signatureCache = cacheToUpdateSignature || ts.createMap();
+            var sourceFile = programOfThisState.getSourceFileByPath(path);
+            if (!sourceFile) {
+                return ts.emptyArray;
+            }
+            if (!updateShapeSignature(state, programOfThisState, sourceFile, signatureCache, cancellationToken, computeHash, exportedModulesMapCache)) {
+                return [sourceFile];
+            }
+            var result = (state.referencedMap ? getFilesAffectedByUpdatedShapeWhenModuleEmit : getFilesAffectedByUpdatedShapeWhenNonModuleEmit)(state, programOfThisState, sourceFile, signatureCache, cancellationToken, computeHash, exportedModulesMapCache);
+            if (!cacheToUpdateSignature) {
+                updateSignaturesFromCache(state, signatureCache);
+            }
+            return result;
+        }
+        BuilderState.getFilesAffectedBy = getFilesAffectedBy;
+        function updateSignaturesFromCache(state, signatureCache) {
+            signatureCache.forEach(function (signature, path) { return updateSignatureOfFile(state, signature, path); });
+        }
+        BuilderState.updateSignaturesFromCache = updateSignaturesFromCache;
+        function updateSignatureOfFile(state, signature, path) {
+            state.fileInfos.get(path).signature = signature;
+            state.hasCalledUpdateShapeSignature.set(path, true);
+        }
+        BuilderState.updateSignatureOfFile = updateSignatureOfFile;
+        function updateShapeSignature(state, programOfThisState, sourceFile, cacheToUpdateSignature, cancellationToken, computeHash, exportedModulesMapCache) {
+            ts.Debug.assert(!!sourceFile);
+            ts.Debug.assert(!exportedModulesMapCache || !!state.exportedModulesMap, "Compute visible to outside map only if visibleToOutsideReferencedMap present in the state");
+            if (state.hasCalledUpdateShapeSignature.has(sourceFile.resolvedPath) || cacheToUpdateSignature.has(sourceFile.resolvedPath)) {
+                return false;
+            }
+            var info = state.fileInfos.get(sourceFile.resolvedPath);
+            if (!info)
+                return ts.Debug.fail();
+            var prevSignature = info.signature;
+            var latestSignature;
+            if (sourceFile.isDeclarationFile) {
+                latestSignature = sourceFile.version;
+                if (exportedModulesMapCache && latestSignature !== prevSignature) {
+                    var references = state.referencedMap ? state.referencedMap.get(sourceFile.resolvedPath) : undefined;
+                    exportedModulesMapCache.set(sourceFile.resolvedPath, references || false);
+                }
+            }
+            else {
+                var emitOutput_1 = getFileEmitOutput(programOfThisState, sourceFile, true, cancellationToken, undefined, true);
+                var firstDts_1 = emitOutput_1.outputFiles &&
+                    programOfThisState.getCompilerOptions().declarationMap ?
+                    emitOutput_1.outputFiles.length > 1 ? emitOutput_1.outputFiles[1] : undefined :
+                    emitOutput_1.outputFiles.length > 0 ? emitOutput_1.outputFiles[0] : undefined;
+                if (firstDts_1) {
+                    ts.Debug.assert(ts.fileExtensionIs(firstDts_1.name, ".d.ts"), "File extension for signature expected to be dts", function () { return "Found: " + ts.getAnyExtensionFromPath(firstDts_1.name) + " for " + firstDts_1.name + ":: All output files: " + JSON.stringify(emitOutput_1.outputFiles.map(function (f) { return f.name; })); });
+                    latestSignature = computeHash(firstDts_1.text);
+                    if (exportedModulesMapCache && latestSignature !== prevSignature) {
+                        updateExportedModules(sourceFile, emitOutput_1.exportedModulesFromDeclarationEmit, exportedModulesMapCache);
+                    }
+                }
+                else {
+                    latestSignature = prevSignature;
+                }
+            }
+            cacheToUpdateSignature.set(sourceFile.resolvedPath, latestSignature);
+            return !prevSignature || latestSignature !== prevSignature;
+        }
+        BuilderState.updateShapeSignature = updateShapeSignature;
+        function updateExportedModules(sourceFile, exportedModulesFromDeclarationEmit, exportedModulesMapCache) {
+            if (!exportedModulesFromDeclarationEmit) {
+                exportedModulesMapCache.set(sourceFile.resolvedPath, false);
+                return;
+            }
+            var exportedModules;
+            exportedModulesFromDeclarationEmit.forEach(function (symbol) { return addExportedModule(getReferencedFileFromImportedModuleSymbol(symbol)); });
+            exportedModulesMapCache.set(sourceFile.resolvedPath, exportedModules || false);
+            function addExportedModule(exportedModulePath) {
+                if (exportedModulePath) {
+                    if (!exportedModules) {
+                        exportedModules = ts.createMap();
+                    }
+                    exportedModules.set(exportedModulePath, true);
+                }
+            }
+        }
+        function updateExportedFilesMapFromCache(state, exportedModulesMapCache) {
+            if (exportedModulesMapCache) {
+                ts.Debug.assert(!!state.exportedModulesMap);
+                exportedModulesMapCache.forEach(function (exportedModules, path) {
+                    if (exportedModules) {
+                        state.exportedModulesMap.set(path, exportedModules);
+                    }
+                    else {
+                        state.exportedModulesMap.delete(path);
+                    }
+                });
+            }
+        }
+        BuilderState.updateExportedFilesMapFromCache = updateExportedFilesMapFromCache;
+        function getAllDependencies(state, programOfThisState, sourceFile) {
+            var compilerOptions = programOfThisState.getCompilerOptions();
+            if (compilerOptions.outFile || compilerOptions.out) {
+                return getAllFileNames(state, programOfThisState);
+            }
+            if (!state.referencedMap || isFileAffectingGlobalScope(sourceFile)) {
+                return getAllFileNames(state, programOfThisState);
+            }
+            var seenMap = ts.createMap();
+            var queue = [sourceFile.resolvedPath];
+            while (queue.length) {
+                var path = queue.pop();
+                if (!seenMap.has(path)) {
+                    seenMap.set(path, true);
+                    var references = state.referencedMap.get(path);
+                    if (references) {
+                        var iterator = references.keys();
+                        for (var iterResult = iterator.next(); !iterResult.done; iterResult = iterator.next()) {
+                            queue.push(iterResult.value);
+                        }
+                    }
+                }
+            }
+            return ts.arrayFrom(ts.mapDefinedIterator(seenMap.keys(), function (path) {
+                var file = programOfThisState.getSourceFileByPath(path);
+                return file ? file.fileName : path;
+            }));
+        }
+        BuilderState.getAllDependencies = getAllDependencies;
+        function getAllFileNames(state, programOfThisState) {
+            if (!state.allFileNames) {
+                var sourceFiles = programOfThisState.getSourceFiles();
+                state.allFileNames = sourceFiles === ts.emptyArray ? ts.emptyArray : sourceFiles.map(function (file) { return file.fileName; });
+            }
+            return state.allFileNames;
+        }
+        function getReferencedByPaths(state, referencedFilePath) {
+            return ts.arrayFrom(ts.mapDefinedIterator(state.referencedMap.entries(), function (_a) {
+                var filePath = _a[0], referencesInFile = _a[1];
+                return referencesInFile.has(referencedFilePath) ? filePath : undefined;
+            }));
+        }
+        BuilderState.getReferencedByPaths = getReferencedByPaths;
+        function containsOnlyAmbientModules(sourceFile) {
+            for (var _i = 0, _a = sourceFile.statements; _i < _a.length; _i++) {
+                var statement = _a[_i];
+                if (!ts.isModuleWithStringLiteralName(statement)) {
+                    return false;
+                }
+            }
+            return true;
+        }
+        function containsGlobalScopeAugmentation(sourceFile) {
+            return ts.some(sourceFile.moduleAugmentations, function (augmentation) { return ts.isGlobalScopeAugmentation(augmentation.parent); });
+        }
+        function isFileAffectingGlobalScope(sourceFile) {
+            return containsGlobalScopeAugmentation(sourceFile) ||
+                !ts.isExternalModule(sourceFile) && !containsOnlyAmbientModules(sourceFile);
+        }
+        function getAllFilesExcludingDefaultLibraryFile(state, programOfThisState, firstSourceFile) {
+            if (state.allFilesExcludingDefaultLibraryFile) {
+                return state.allFilesExcludingDefaultLibraryFile;
+            }
+            var result;
+            if (firstSourceFile)
+                addSourceFile(firstSourceFile);
+            for (var _i = 0, _a = programOfThisState.getSourceFiles(); _i < _a.length; _i++) {
+                var sourceFile = _a[_i];
+                if (sourceFile !== firstSourceFile) {
+                    addSourceFile(sourceFile);
+                }
+            }
+            state.allFilesExcludingDefaultLibraryFile = result || ts.emptyArray;
+            return state.allFilesExcludingDefaultLibraryFile;
+            function addSourceFile(sourceFile) {
+                if (!programOfThisState.isSourceFileDefaultLibrary(sourceFile)) {
+                    (result || (result = [])).push(sourceFile);
+                }
+            }
+        }
+        BuilderState.getAllFilesExcludingDefaultLibraryFile = getAllFilesExcludingDefaultLibraryFile;
+        function getFilesAffectedByUpdatedShapeWhenNonModuleEmit(state, programOfThisState, sourceFileWithUpdatedShape) {
+            var compilerOptions = programOfThisState.getCompilerOptions();
+            if (compilerOptions && (compilerOptions.out || compilerOptions.outFile)) {
+                return [sourceFileWithUpdatedShape];
+            }
+            return getAllFilesExcludingDefaultLibraryFile(state, programOfThisState, sourceFileWithUpdatedShape);
+        }
+        function getFilesAffectedByUpdatedShapeWhenModuleEmit(state, programOfThisState, sourceFileWithUpdatedShape, cacheToUpdateSignature, cancellationToken, computeHash, exportedModulesMapCache) {
+            if (isFileAffectingGlobalScope(sourceFileWithUpdatedShape)) {
+                return getAllFilesExcludingDefaultLibraryFile(state, programOfThisState, sourceFileWithUpdatedShape);
+            }
+            var compilerOptions = programOfThisState.getCompilerOptions();
+            if (compilerOptions && (compilerOptions.isolatedModules || compilerOptions.out || compilerOptions.outFile)) {
+                return [sourceFileWithUpdatedShape];
+            }
+            var seenFileNamesMap = ts.createMap();
+            seenFileNamesMap.set(sourceFileWithUpdatedShape.resolvedPath, sourceFileWithUpdatedShape);
+            var queue = getReferencedByPaths(state, sourceFileWithUpdatedShape.resolvedPath);
+            while (queue.length > 0) {
+                var currentPath = queue.pop();
+                if (!seenFileNamesMap.has(currentPath)) {
+                    var currentSourceFile = programOfThisState.getSourceFileByPath(currentPath);
+                    seenFileNamesMap.set(currentPath, currentSourceFile);
+                    if (currentSourceFile && updateShapeSignature(state, programOfThisState, currentSourceFile, cacheToUpdateSignature, cancellationToken, computeHash, exportedModulesMapCache)) {
+                        queue.push.apply(queue, getReferencedByPaths(state, currentSourceFile.resolvedPath));
+                    }
+                }
+            }
+            return ts.arrayFrom(ts.mapDefinedIterator(seenFileNamesMap.values(), function (value) { return value; }));
+        }
+    })(BuilderState = ts.BuilderState || (ts.BuilderState = {}));
+    function cloneMapOrUndefined(map) {
+        return map ? ts.cloneMap(map) : undefined;
+    }
+    ts.cloneMapOrUndefined = cloneMapOrUndefined;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function hasSameKeys(map1, map2) {
+        return map1 === map2 || map1 !== undefined && map2 !== undefined && map1.size === map2.size && !ts.forEachKey(map1, function (key) { return !map2.has(key); });
+    }
+    function createBuilderProgramState(newProgram, getCanonicalFileName, oldState) {
+        var state = ts.BuilderState.create(newProgram, getCanonicalFileName, oldState);
+        state.program = newProgram;
+        var compilerOptions = newProgram.getCompilerOptions();
+        state.compilerOptions = compilerOptions;
+        if (!compilerOptions.outFile && !compilerOptions.out) {
+            state.semanticDiagnosticsPerFile = ts.createMap();
+        }
+        state.changedFilesSet = ts.createMap();
+        var useOldState = ts.BuilderState.canReuseOldState(state.referencedMap, oldState);
+        var oldCompilerOptions = useOldState ? oldState.compilerOptions : undefined;
+        var canCopySemanticDiagnostics = useOldState && oldState.semanticDiagnosticsPerFile && !!state.semanticDiagnosticsPerFile &&
+            !ts.compilerOptionsAffectSemanticDiagnostics(compilerOptions, oldCompilerOptions);
+        if (useOldState) {
+            if (!oldState.currentChangedFilePath) {
+                var affectedSignatures = oldState.currentAffectedFilesSignatures;
+                ts.Debug.assert(!oldState.affectedFiles && (!affectedSignatures || !affectedSignatures.size), "Cannot reuse if only few affected files of currentChangedFile were iterated");
+            }
+            var changedFilesSet = oldState.changedFilesSet;
+            if (canCopySemanticDiagnostics) {
+                ts.Debug.assert(!changedFilesSet || !ts.forEachKey(changedFilesSet, function (path) { return oldState.semanticDiagnosticsPerFile.has(path); }), "Semantic diagnostics shouldnt be available for changed files");
+            }
+            if (changedFilesSet) {
+                ts.copyEntries(changedFilesSet, state.changedFilesSet);
+            }
+            if (!compilerOptions.outFile && !compilerOptions.out && oldState.affectedFilesPendingEmit) {
+                state.affectedFilesPendingEmit = oldState.affectedFilesPendingEmit.slice();
+                state.affectedFilesPendingEmitKind = ts.cloneMapOrUndefined(oldState.affectedFilesPendingEmitKind);
+                state.affectedFilesPendingEmitIndex = oldState.affectedFilesPendingEmitIndex;
+                state.seenAffectedFiles = ts.createMap();
+            }
+        }
+        var referencedMap = state.referencedMap;
+        var oldReferencedMap = useOldState ? oldState.referencedMap : undefined;
+        var copyDeclarationFileDiagnostics = canCopySemanticDiagnostics && !compilerOptions.skipLibCheck === !oldCompilerOptions.skipLibCheck;
+        var copyLibFileDiagnostics = copyDeclarationFileDiagnostics && !compilerOptions.skipDefaultLibCheck === !oldCompilerOptions.skipDefaultLibCheck;
+        state.fileInfos.forEach(function (info, sourceFilePath) {
+            var oldInfo;
+            var newReferences;
+            if (!useOldState ||
+                !(oldInfo = oldState.fileInfos.get(sourceFilePath)) ||
+                oldInfo.version !== info.version ||
+                !hasSameKeys(newReferences = referencedMap && referencedMap.get(sourceFilePath), oldReferencedMap && oldReferencedMap.get(sourceFilePath)) ||
+                newReferences && ts.forEachKey(newReferences, function (path) { return !state.fileInfos.has(path) && oldState.fileInfos.has(path); })) {
+                state.changedFilesSet.set(sourceFilePath, true);
+            }
+            else if (canCopySemanticDiagnostics) {
+                var sourceFile = newProgram.getSourceFileByPath(sourceFilePath);
+                if (sourceFile.isDeclarationFile && !copyDeclarationFileDiagnostics) {
+                    return;
+                }
+                if (sourceFile.hasNoDefaultLib && !copyLibFileDiagnostics) {
+                    return;
+                }
+                var diagnostics = oldState.semanticDiagnosticsPerFile.get(sourceFilePath);
+                if (diagnostics) {
+                    state.semanticDiagnosticsPerFile.set(sourceFilePath, oldState.hasReusableDiagnostic ? convertToDiagnostics(diagnostics, newProgram, getCanonicalFileName) : diagnostics);
+                    if (!state.semanticDiagnosticsFromOldState) {
+                        state.semanticDiagnosticsFromOldState = ts.createMap();
+                    }
+                    state.semanticDiagnosticsFromOldState.set(sourceFilePath, true);
+                }
+            }
+        });
+        if (useOldState && ts.forEachEntry(oldState.fileInfos, function (info, sourceFilePath) { return info.affectsGlobalScope && !state.fileInfos.has(sourceFilePath); })) {
+            ts.BuilderState.getAllFilesExcludingDefaultLibraryFile(state, newProgram, undefined)
+                .forEach(function (file) { return state.changedFilesSet.set(file.resolvedPath, true); });
+        }
+        else if (oldCompilerOptions && ts.compilerOptionsAffectEmit(compilerOptions, oldCompilerOptions)) {
+            newProgram.getSourceFiles().forEach(function (f) { return addToAffectedFilesPendingEmit(state, f.resolvedPath, 1); });
+            ts.Debug.assert(!state.seenAffectedFiles || !state.seenAffectedFiles.size);
+            state.seenAffectedFiles = state.seenAffectedFiles || ts.createMap();
+        }
+        state.emittedBuildInfo = !state.changedFilesSet.size && !state.affectedFilesPendingEmit;
+        return state;
+    }
+    function convertToDiagnostics(diagnostics, newProgram, getCanonicalFileName) {
+        if (!diagnostics.length)
+            return ts.emptyArray;
+        var buildInfoDirectory = ts.getDirectoryPath(ts.getNormalizedAbsolutePath(ts.getTsBuildInfoEmitOutputFilePath(newProgram.getCompilerOptions()), newProgram.getCurrentDirectory()));
+        return diagnostics.map(function (diagnostic) {
+            var result = convertToDiagnosticRelatedInformation(diagnostic, newProgram, toPath);
+            result.reportsUnnecessary = diagnostic.reportsUnnecessary;
+            result.source = diagnostic.source;
+            var relatedInformation = diagnostic.relatedInformation;
+            result.relatedInformation = relatedInformation ?
+                relatedInformation.length ?
+                    relatedInformation.map(function (r) { return convertToDiagnosticRelatedInformation(r, newProgram, toPath); }) :
+                    ts.emptyArray :
+                undefined;
+            return result;
+        });
+        function toPath(path) {
+            return ts.toPath(path, buildInfoDirectory, getCanonicalFileName);
+        }
+    }
+    function convertToDiagnosticRelatedInformation(diagnostic, newProgram, toPath) {
+        var file = diagnostic.file;
+        return __assign(__assign({}, diagnostic), { file: file ? newProgram.getSourceFileByPath(toPath(file)) : undefined });
+    }
+    function releaseCache(state) {
+        ts.BuilderState.releaseCache(state);
+        state.program = undefined;
+    }
+    function cloneBuilderProgramState(state) {
+        var newState = ts.BuilderState.clone(state);
+        newState.semanticDiagnosticsPerFile = ts.cloneMapOrUndefined(state.semanticDiagnosticsPerFile);
+        newState.changedFilesSet = ts.cloneMap(state.changedFilesSet);
+        newState.affectedFiles = state.affectedFiles;
+        newState.affectedFilesIndex = state.affectedFilesIndex;
+        newState.currentChangedFilePath = state.currentChangedFilePath;
+        newState.currentAffectedFilesSignatures = ts.cloneMapOrUndefined(state.currentAffectedFilesSignatures);
+        newState.currentAffectedFilesExportedModulesMap = ts.cloneMapOrUndefined(state.currentAffectedFilesExportedModulesMap);
+        newState.seenAffectedFiles = ts.cloneMapOrUndefined(state.seenAffectedFiles);
+        newState.cleanedDiagnosticsOfLibFiles = state.cleanedDiagnosticsOfLibFiles;
+        newState.semanticDiagnosticsFromOldState = ts.cloneMapOrUndefined(state.semanticDiagnosticsFromOldState);
+        newState.program = state.program;
+        newState.compilerOptions = state.compilerOptions;
+        newState.affectedFilesPendingEmit = state.affectedFilesPendingEmit && state.affectedFilesPendingEmit.slice();
+        newState.affectedFilesPendingEmitKind = ts.cloneMapOrUndefined(state.affectedFilesPendingEmitKind);
+        newState.affectedFilesPendingEmitIndex = state.affectedFilesPendingEmitIndex;
+        newState.seenEmittedFiles = ts.cloneMapOrUndefined(state.seenEmittedFiles);
+        newState.programEmitComplete = state.programEmitComplete;
+        return newState;
+    }
+    function assertSourceFileOkWithoutNextAffectedCall(state, sourceFile) {
+        ts.Debug.assert(!sourceFile || !state.affectedFiles || state.affectedFiles[state.affectedFilesIndex - 1] !== sourceFile || !state.semanticDiagnosticsPerFile.has(sourceFile.resolvedPath));
+    }
+    function getNextAffectedFile(state, cancellationToken, computeHash) {
+        while (true) {
+            var affectedFiles = state.affectedFiles;
+            if (affectedFiles) {
+                var seenAffectedFiles = state.seenAffectedFiles;
+                var affectedFilesIndex = state.affectedFilesIndex;
+                while (affectedFilesIndex < affectedFiles.length) {
+                    var affectedFile = affectedFiles[affectedFilesIndex];
+                    if (!seenAffectedFiles.has(affectedFile.resolvedPath)) {
+                        state.affectedFilesIndex = affectedFilesIndex;
+                        handleDtsMayChangeOfAffectedFile(state, affectedFile, cancellationToken, computeHash);
+                        return affectedFile;
+                    }
+                    affectedFilesIndex++;
+                }
+                state.changedFilesSet.delete(state.currentChangedFilePath);
+                state.currentChangedFilePath = undefined;
+                ts.BuilderState.updateSignaturesFromCache(state, state.currentAffectedFilesSignatures);
+                state.currentAffectedFilesSignatures.clear();
+                ts.BuilderState.updateExportedFilesMapFromCache(state, state.currentAffectedFilesExportedModulesMap);
+                state.affectedFiles = undefined;
+            }
+            var nextKey = state.changedFilesSet.keys().next();
+            if (nextKey.done) {
+                return undefined;
+            }
+            var program = ts.Debug.checkDefined(state.program);
+            var compilerOptions = program.getCompilerOptions();
+            if (compilerOptions.outFile || compilerOptions.out) {
+                ts.Debug.assert(!state.semanticDiagnosticsPerFile);
+                return program;
+            }
+            state.currentAffectedFilesSignatures = state.currentAffectedFilesSignatures || ts.createMap();
+            if (state.exportedModulesMap) {
+                state.currentAffectedFilesExportedModulesMap = state.currentAffectedFilesExportedModulesMap || ts.createMap();
+            }
+            state.affectedFiles = ts.BuilderState.getFilesAffectedBy(state, program, nextKey.value, cancellationToken, computeHash, state.currentAffectedFilesSignatures, state.currentAffectedFilesExportedModulesMap);
+            state.currentChangedFilePath = nextKey.value;
+            state.affectedFilesIndex = 0;
+            state.seenAffectedFiles = state.seenAffectedFiles || ts.createMap();
+        }
+    }
+    function getNextAffectedFilePendingEmit(state) {
+        var affectedFilesPendingEmit = state.affectedFilesPendingEmit;
+        if (affectedFilesPendingEmit) {
+            var seenEmittedFiles = state.seenEmittedFiles || (state.seenEmittedFiles = ts.createMap());
+            for (var i = state.affectedFilesPendingEmitIndex; i < affectedFilesPendingEmit.length; i++) {
+                var affectedFile = ts.Debug.checkDefined(state.program).getSourceFileByPath(affectedFilesPendingEmit[i]);
+                if (affectedFile) {
+                    var seenKind = seenEmittedFiles.get(affectedFile.resolvedPath);
+                    var emitKind = ts.Debug.checkDefined(ts.Debug.checkDefined(state.affectedFilesPendingEmitKind).get(affectedFile.resolvedPath));
+                    if (seenKind === undefined || seenKind < emitKind) {
+                        state.affectedFilesPendingEmitIndex = i;
+                        return { affectedFile: affectedFile, emitKind: emitKind };
+                    }
+                }
+            }
+            state.affectedFilesPendingEmit = undefined;
+            state.affectedFilesPendingEmitKind = undefined;
+            state.affectedFilesPendingEmitIndex = undefined;
+        }
+        return undefined;
+    }
+    function handleDtsMayChangeOfAffectedFile(state, affectedFile, cancellationToken, computeHash) {
+        removeSemanticDiagnosticsOf(state, affectedFile.resolvedPath);
+        if (state.allFilesExcludingDefaultLibraryFile === state.affectedFiles) {
+            if (!state.cleanedDiagnosticsOfLibFiles) {
+                state.cleanedDiagnosticsOfLibFiles = true;
+                var program_1 = ts.Debug.checkDefined(state.program);
+                var options_2 = program_1.getCompilerOptions();
+                ts.forEach(program_1.getSourceFiles(), function (f) {
+                    return program_1.isSourceFileDefaultLibrary(f) &&
+                        !ts.skipTypeChecking(f, options_2, program_1) &&
+                        removeSemanticDiagnosticsOf(state, f.resolvedPath);
+                });
+            }
+            return;
+        }
+        if (!state.compilerOptions.assumeChangesOnlyAffectDirectDependencies) {
+            forEachReferencingModulesOfExportOfAffectedFile(state, affectedFile, function (state, path) { return handleDtsMayChangeOf(state, path, cancellationToken, computeHash); });
+        }
+    }
+    function handleDtsMayChangeOf(state, path, cancellationToken, computeHash) {
+        removeSemanticDiagnosticsOf(state, path);
+        if (!state.changedFilesSet.has(path)) {
+            var program = ts.Debug.checkDefined(state.program);
+            var sourceFile = program.getSourceFileByPath(path);
+            if (sourceFile) {
+                ts.BuilderState.updateShapeSignature(state, program, sourceFile, ts.Debug.checkDefined(state.currentAffectedFilesSignatures), cancellationToken, computeHash, state.currentAffectedFilesExportedModulesMap);
+                if (ts.getEmitDeclarations(state.compilerOptions)) {
+                    addToAffectedFilesPendingEmit(state, path, 0);
+                }
+            }
+        }
+        return false;
+    }
+    function removeSemanticDiagnosticsOf(state, path) {
+        if (!state.semanticDiagnosticsFromOldState) {
+            return true;
+        }
+        state.semanticDiagnosticsFromOldState.delete(path);
+        state.semanticDiagnosticsPerFile.delete(path);
+        return !state.semanticDiagnosticsFromOldState.size;
+    }
+    function isChangedSignagure(state, path) {
+        var newSignature = ts.Debug.checkDefined(state.currentAffectedFilesSignatures).get(path);
+        var oldSignagure = ts.Debug.checkDefined(state.fileInfos.get(path)).signature;
+        return newSignature !== oldSignagure;
+    }
+    function forEachReferencingModulesOfExportOfAffectedFile(state, affectedFile, fn) {
+        if (!state.exportedModulesMap || !state.changedFilesSet.has(affectedFile.resolvedPath)) {
+            return;
+        }
+        if (!isChangedSignagure(state, affectedFile.resolvedPath))
+            return;
+        if (state.compilerOptions.isolatedModules) {
+            var seenFileNamesMap = ts.createMap();
+            seenFileNamesMap.set(affectedFile.resolvedPath, true);
+            var queue = ts.BuilderState.getReferencedByPaths(state, affectedFile.resolvedPath);
+            while (queue.length > 0) {
+                var currentPath = queue.pop();
+                if (!seenFileNamesMap.has(currentPath)) {
+                    seenFileNamesMap.set(currentPath, true);
+                    var result = fn(state, currentPath);
+                    if (result && isChangedSignagure(state, currentPath)) {
+                        var currentSourceFile = ts.Debug.checkDefined(state.program).getSourceFileByPath(currentPath);
+                        queue.push.apply(queue, ts.BuilderState.getReferencedByPaths(state, currentSourceFile.resolvedPath));
+                    }
+                }
+            }
+        }
+        ts.Debug.assert(!!state.currentAffectedFilesExportedModulesMap);
+        var seenFileAndExportsOfFile = ts.createMap();
+        if (ts.forEachEntry(state.currentAffectedFilesExportedModulesMap, function (exportedModules, exportedFromPath) {
+            return exportedModules &&
+                exportedModules.has(affectedFile.resolvedPath) &&
+                forEachFilesReferencingPath(state, exportedFromPath, seenFileAndExportsOfFile, fn);
+        })) {
+            return;
+        }
+        ts.forEachEntry(state.exportedModulesMap, function (exportedModules, exportedFromPath) {
+            return !state.currentAffectedFilesExportedModulesMap.has(exportedFromPath) &&
+                exportedModules.has(affectedFile.resolvedPath) &&
+                forEachFilesReferencingPath(state, exportedFromPath, seenFileAndExportsOfFile, fn);
+        });
+    }
+    function forEachFilesReferencingPath(state, referencedPath, seenFileAndExportsOfFile, fn) {
+        return ts.forEachEntry(state.referencedMap, function (referencesInFile, filePath) {
+            return referencesInFile.has(referencedPath) && forEachFileAndExportsOfFile(state, filePath, seenFileAndExportsOfFile, fn);
+        });
+    }
+    function forEachFileAndExportsOfFile(state, filePath, seenFileAndExportsOfFile, fn) {
+        if (!ts.addToSeen(seenFileAndExportsOfFile, filePath)) {
+            return false;
+        }
+        if (fn(state, filePath)) {
+            return true;
+        }
+        ts.Debug.assert(!!state.currentAffectedFilesExportedModulesMap);
+        if (ts.forEachEntry(state.currentAffectedFilesExportedModulesMap, function (exportedModules, exportedFromPath) {
+            return exportedModules &&
+                exportedModules.has(filePath) &&
+                forEachFileAndExportsOfFile(state, exportedFromPath, seenFileAndExportsOfFile, fn);
+        })) {
+            return true;
+        }
+        if (ts.forEachEntry(state.exportedModulesMap, function (exportedModules, exportedFromPath) {
+            return !state.currentAffectedFilesExportedModulesMap.has(exportedFromPath) &&
+                exportedModules.has(filePath) &&
+                forEachFileAndExportsOfFile(state, exportedFromPath, seenFileAndExportsOfFile, fn);
+        })) {
+            return true;
+        }
+        return !!ts.forEachEntry(state.referencedMap, function (referencesInFile, referencingFilePath) {
+            return referencesInFile.has(filePath) &&
+                !seenFileAndExportsOfFile.has(referencingFilePath) &&
+                fn(state, referencingFilePath);
+        });
+    }
+    function doneWithAffectedFile(state, affected, emitKind, isPendingEmit, isBuildInfoEmit) {
+        if (isBuildInfoEmit) {
+            state.emittedBuildInfo = true;
+        }
+        else if (affected === state.program) {
+            state.changedFilesSet.clear();
+            state.programEmitComplete = true;
+        }
+        else {
+            state.seenAffectedFiles.set(affected.resolvedPath, true);
+            if (emitKind !== undefined) {
+                (state.seenEmittedFiles || (state.seenEmittedFiles = ts.createMap())).set(affected.resolvedPath, emitKind);
+            }
+            if (isPendingEmit) {
+                state.affectedFilesPendingEmitIndex++;
+            }
+            else {
+                state.affectedFilesIndex++;
+            }
+        }
+    }
+    function toAffectedFileResult(state, result, affected) {
+        doneWithAffectedFile(state, affected);
+        return { result: result, affected: affected };
+    }
+    function toAffectedFileEmitResult(state, result, affected, emitKind, isPendingEmit, isBuildInfoEmit) {
+        doneWithAffectedFile(state, affected, emitKind, isPendingEmit, isBuildInfoEmit);
+        return { result: result, affected: affected };
+    }
+    function getSemanticDiagnosticsOfFile(state, sourceFile, cancellationToken) {
+        return ts.concatenate(getBinderAndCheckerDiagnosticsOfFile(state, sourceFile, cancellationToken), ts.Debug.checkDefined(state.program).getProgramDiagnostics(sourceFile));
+    }
+    function getBinderAndCheckerDiagnosticsOfFile(state, sourceFile, cancellationToken) {
+        var path = sourceFile.resolvedPath;
+        if (state.semanticDiagnosticsPerFile) {
+            var cachedDiagnostics = state.semanticDiagnosticsPerFile.get(path);
+            if (cachedDiagnostics) {
+                return cachedDiagnostics;
+            }
+        }
+        var diagnostics = ts.Debug.checkDefined(state.program).getBindAndCheckDiagnostics(sourceFile, cancellationToken);
+        if (state.semanticDiagnosticsPerFile) {
+            state.semanticDiagnosticsPerFile.set(path, diagnostics);
+        }
+        return diagnostics;
+    }
+    function getProgramBuildInfo(state, getCanonicalFileName) {
+        if (state.compilerOptions.outFile || state.compilerOptions.out)
+            return undefined;
+        var currentDirectory = ts.Debug.checkDefined(state.program).getCurrentDirectory();
+        var buildInfoDirectory = ts.getDirectoryPath(ts.getNormalizedAbsolutePath(ts.getTsBuildInfoEmitOutputFilePath(state.compilerOptions), currentDirectory));
+        var fileInfos = {};
+        state.fileInfos.forEach(function (value, key) {
+            var signature = state.currentAffectedFilesSignatures && state.currentAffectedFilesSignatures.get(key);
+            fileInfos[relativeToBuildInfo(key)] = signature === undefined ? value : { version: value.version, signature: signature, affectsGlobalScope: value.affectsGlobalScope };
+        });
+        var result = {
+            fileInfos: fileInfos,
+            options: convertToReusableCompilerOptions(state.compilerOptions, relativeToBuildInfoEnsuringAbsolutePath)
+        };
+        if (state.referencedMap) {
+            var referencedMap = {};
+            for (var _i = 0, _a = ts.arrayFrom(state.referencedMap.keys()).sort(ts.compareStringsCaseSensitive); _i < _a.length; _i++) {
+                var key = _a[_i];
+                referencedMap[relativeToBuildInfo(key)] = ts.arrayFrom(state.referencedMap.get(key).keys(), relativeToBuildInfo).sort(ts.compareStringsCaseSensitive);
+            }
+            result.referencedMap = referencedMap;
+        }
+        if (state.exportedModulesMap) {
+            var exportedModulesMap = {};
+            for (var _b = 0, _c = ts.arrayFrom(state.exportedModulesMap.keys()).sort(ts.compareStringsCaseSensitive); _b < _c.length; _b++) {
+                var key = _c[_b];
+                var newValue = state.currentAffectedFilesExportedModulesMap && state.currentAffectedFilesExportedModulesMap.get(key);
+                if (newValue === undefined)
+                    exportedModulesMap[relativeToBuildInfo(key)] = ts.arrayFrom(state.exportedModulesMap.get(key).keys(), relativeToBuildInfo).sort(ts.compareStringsCaseSensitive);
+                else if (newValue)
+                    exportedModulesMap[relativeToBuildInfo(key)] = ts.arrayFrom(newValue.keys(), relativeToBuildInfo).sort(ts.compareStringsCaseSensitive);
+            }
+            result.exportedModulesMap = exportedModulesMap;
+        }
+        if (state.semanticDiagnosticsPerFile) {
+            var semanticDiagnosticsPerFile = [];
+            for (var _d = 0, _e = ts.arrayFrom(state.semanticDiagnosticsPerFile.keys()).sort(ts.compareStringsCaseSensitive); _d < _e.length; _d++) {
+                var key = _e[_d];
+                var value = state.semanticDiagnosticsPerFile.get(key);
+                semanticDiagnosticsPerFile.push(value.length ?
+                    [
+                        relativeToBuildInfo(key),
+                        state.hasReusableDiagnostic ?
+                            value :
+                            convertToReusableDiagnostics(value, relativeToBuildInfo)
+                    ] :
+                    relativeToBuildInfo(key));
+            }
+            result.semanticDiagnosticsPerFile = semanticDiagnosticsPerFile;
+        }
+        return result;
+        function relativeToBuildInfoEnsuringAbsolutePath(path) {
+            return relativeToBuildInfo(ts.getNormalizedAbsolutePath(path, currentDirectory));
+        }
+        function relativeToBuildInfo(path) {
+            return ts.ensurePathIsNonModuleName(ts.getRelativePathFromDirectory(buildInfoDirectory, path, getCanonicalFileName));
+        }
+    }
+    function convertToReusableCompilerOptions(options, relativeToBuildInfo) {
+        var result = {};
+        var optionsNameMap = ts.getOptionsNameMap().optionsNameMap;
+        for (var name in options) {
+            if (ts.hasProperty(options, name)) {
+                result[name] = convertToReusableCompilerOptionValue(optionsNameMap.get(name.toLowerCase()), options[name], relativeToBuildInfo);
+            }
+        }
+        if (result.configFilePath) {
+            result.configFilePath = relativeToBuildInfo(result.configFilePath);
+        }
+        return result;
+    }
+    function convertToReusableCompilerOptionValue(option, value, relativeToBuildInfo) {
+        if (option) {
+            if (option.type === "list") {
+                var values = value;
+                if (option.element.isFilePath && values.length) {
+                    return values.map(relativeToBuildInfo);
+                }
+            }
+            else if (option.isFilePath) {
+                return relativeToBuildInfo(value);
+            }
+        }
+        return value;
+    }
+    function convertToReusableDiagnostics(diagnostics, relativeToBuildInfo) {
+        ts.Debug.assert(!!diagnostics.length);
+        return diagnostics.map(function (diagnostic) {
+            var result = convertToReusableDiagnosticRelatedInformation(diagnostic, relativeToBuildInfo);
+            result.reportsUnnecessary = diagnostic.reportsUnnecessary;
+            result.source = diagnostic.source;
+            var relatedInformation = diagnostic.relatedInformation;
+            result.relatedInformation = relatedInformation ?
+                relatedInformation.length ?
+                    relatedInformation.map(function (r) { return convertToReusableDiagnosticRelatedInformation(r, relativeToBuildInfo); }) :
+                    ts.emptyArray :
+                undefined;
+            return result;
+        });
+    }
+    function convertToReusableDiagnosticRelatedInformation(diagnostic, relativeToBuildInfo) {
+        var file = diagnostic.file;
+        return __assign(__assign({}, diagnostic), { file: file ? relativeToBuildInfo(file.resolvedPath) : undefined });
+    }
+    var BuilderProgramKind;
+    (function (BuilderProgramKind) {
+        BuilderProgramKind[BuilderProgramKind["SemanticDiagnosticsBuilderProgram"] = 0] = "SemanticDiagnosticsBuilderProgram";
+        BuilderProgramKind[BuilderProgramKind["EmitAndSemanticDiagnosticsBuilderProgram"] = 1] = "EmitAndSemanticDiagnosticsBuilderProgram";
+    })(BuilderProgramKind = ts.BuilderProgramKind || (ts.BuilderProgramKind = {}));
+    function getBuilderCreationParameters(newProgramOrRootNames, hostOrOptions, oldProgramOrHost, configFileParsingDiagnosticsOrOldProgram, configFileParsingDiagnostics, projectReferences) {
+        var host;
+        var newProgram;
+        var oldProgram;
+        if (newProgramOrRootNames === undefined) {
+            ts.Debug.assert(hostOrOptions === undefined);
+            host = oldProgramOrHost;
+            oldProgram = configFileParsingDiagnosticsOrOldProgram;
+            ts.Debug.assert(!!oldProgram);
+            newProgram = oldProgram.getProgram();
+        }
+        else if (ts.isArray(newProgramOrRootNames)) {
+            oldProgram = configFileParsingDiagnosticsOrOldProgram;
+            newProgram = ts.createProgram({
+                rootNames: newProgramOrRootNames,
+                options: hostOrOptions,
+                host: oldProgramOrHost,
+                oldProgram: oldProgram && oldProgram.getProgramOrUndefined(),
+                configFileParsingDiagnostics: configFileParsingDiagnostics,
+                projectReferences: projectReferences
+            });
+            host = oldProgramOrHost;
+        }
+        else {
+            newProgram = newProgramOrRootNames;
+            host = hostOrOptions;
+            oldProgram = oldProgramOrHost;
+            configFileParsingDiagnostics = configFileParsingDiagnosticsOrOldProgram;
+        }
+        return { host: host, newProgram: newProgram, oldProgram: oldProgram, configFileParsingDiagnostics: configFileParsingDiagnostics || ts.emptyArray };
+    }
+    ts.getBuilderCreationParameters = getBuilderCreationParameters;
+    function createBuilderProgram(kind, _a) {
+        var newProgram = _a.newProgram, host = _a.host, oldProgram = _a.oldProgram, configFileParsingDiagnostics = _a.configFileParsingDiagnostics;
+        var oldState = oldProgram && oldProgram.getState();
+        if (oldState && newProgram === oldState.program && configFileParsingDiagnostics === newProgram.getConfigFileParsingDiagnostics()) {
+            newProgram = undefined;
+            oldState = undefined;
+            return oldProgram;
+        }
+        var getCanonicalFileName = ts.createGetCanonicalFileName(host.useCaseSensitiveFileNames());
+        var computeHash = host.createHash || ts.generateDjb2Hash;
+        var state = createBuilderProgramState(newProgram, getCanonicalFileName, oldState);
+        var backupState;
+        newProgram.getProgramBuildInfo = function () { return getProgramBuildInfo(state, getCanonicalFileName); };
+        newProgram = undefined;
+        oldProgram = undefined;
+        oldState = undefined;
+        var builderProgram = createRedirectedBuilderProgram(state, configFileParsingDiagnostics);
+        builderProgram.getState = function () { return state; };
+        builderProgram.backupState = function () {
+            ts.Debug.assert(backupState === undefined);
+            backupState = cloneBuilderProgramState(state);
+        };
+        builderProgram.restoreState = function () {
+            state = ts.Debug.checkDefined(backupState);
+            backupState = undefined;
+        };
+        builderProgram.getAllDependencies = function (sourceFile) { return ts.BuilderState.getAllDependencies(state, ts.Debug.checkDefined(state.program), sourceFile); };
+        builderProgram.getSemanticDiagnostics = getSemanticDiagnostics;
+        builderProgram.emit = emit;
+        builderProgram.releaseProgram = function () {
+            releaseCache(state);
+            backupState = undefined;
+        };
+        if (kind === BuilderProgramKind.SemanticDiagnosticsBuilderProgram) {
+            builderProgram.getSemanticDiagnosticsOfNextAffectedFile = getSemanticDiagnosticsOfNextAffectedFile;
+        }
+        else if (kind === BuilderProgramKind.EmitAndSemanticDiagnosticsBuilderProgram) {
+            builderProgram.getSemanticDiagnosticsOfNextAffectedFile = getSemanticDiagnosticsOfNextAffectedFile;
+            builderProgram.emitNextAffectedFile = emitNextAffectedFile;
+        }
+        else {
+            ts.notImplemented();
+        }
+        return builderProgram;
+        function emitNextAffectedFile(writeFile, cancellationToken, emitOnlyDtsFiles, customTransformers) {
+            var affected = getNextAffectedFile(state, cancellationToken, computeHash);
+            var emitKind = 1;
+            var isPendingEmitFile = false;
+            if (!affected) {
+                if (!state.compilerOptions.out && !state.compilerOptions.outFile) {
+                    var pendingAffectedFile = getNextAffectedFilePendingEmit(state);
+                    if (!pendingAffectedFile) {
+                        if (state.emittedBuildInfo) {
+                            return undefined;
+                        }
+                        var affected_1 = ts.Debug.checkDefined(state.program);
+                        return toAffectedFileEmitResult(state, affected_1.emitBuildInfo(writeFile || ts.maybeBind(host, host.writeFile), cancellationToken), affected_1, 1, false, true);
+                    }
+                    (affected = pendingAffectedFile.affectedFile, emitKind = pendingAffectedFile.emitKind);
+                    isPendingEmitFile = true;
+                }
+                else {
+                    var program = ts.Debug.checkDefined(state.program);
+                    if (state.programEmitComplete)
+                        return undefined;
+                    affected = program;
+                }
+            }
+            return toAffectedFileEmitResult(state, ts.Debug.checkDefined(state.program).emit(affected === state.program ? undefined : affected, writeFile || ts.maybeBind(host, host.writeFile), cancellationToken, emitOnlyDtsFiles || emitKind === 0, customTransformers), affected, emitKind, isPendingEmitFile);
+        }
+        function emit(targetSourceFile, writeFile, cancellationToken, emitOnlyDtsFiles, customTransformers) {
+            if (kind === BuilderProgramKind.EmitAndSemanticDiagnosticsBuilderProgram) {
+                assertSourceFileOkWithoutNextAffectedCall(state, targetSourceFile);
+                var result = ts.handleNoEmitOptions(builderProgram, targetSourceFile, cancellationToken);
+                if (result)
+                    return result;
+                if (!targetSourceFile) {
+                    var sourceMaps = [];
+                    var emitSkipped = false;
+                    var diagnostics = void 0;
+                    var emittedFiles = [];
+                    var affectedEmitResult = void 0;
+                    while (affectedEmitResult = emitNextAffectedFile(writeFile, cancellationToken, emitOnlyDtsFiles, customTransformers)) {
+                        emitSkipped = emitSkipped || affectedEmitResult.result.emitSkipped;
+                        diagnostics = ts.addRange(diagnostics, affectedEmitResult.result.diagnostics);
+                        emittedFiles = ts.addRange(emittedFiles, affectedEmitResult.result.emittedFiles);
+                        sourceMaps = ts.addRange(sourceMaps, affectedEmitResult.result.sourceMaps);
+                    }
+                    return {
+                        emitSkipped: emitSkipped,
+                        diagnostics: diagnostics || ts.emptyArray,
+                        emittedFiles: emittedFiles,
+                        sourceMaps: sourceMaps
+                    };
+                }
+            }
+            return ts.Debug.checkDefined(state.program).emit(targetSourceFile, writeFile || ts.maybeBind(host, host.writeFile), cancellationToken, emitOnlyDtsFiles, customTransformers);
+        }
+        function getSemanticDiagnosticsOfNextAffectedFile(cancellationToken, ignoreSourceFile) {
+            while (true) {
+                var affected = getNextAffectedFile(state, cancellationToken, computeHash);
+                if (!affected) {
+                    return undefined;
+                }
+                else if (affected === state.program) {
+                    return toAffectedFileResult(state, state.program.getSemanticDiagnostics(undefined, cancellationToken), affected);
+                }
+                if (kind === BuilderProgramKind.EmitAndSemanticDiagnosticsBuilderProgram) {
+                    addToAffectedFilesPendingEmit(state, affected.resolvedPath, 1);
+                }
+                if (ignoreSourceFile && ignoreSourceFile(affected)) {
+                    doneWithAffectedFile(state, affected);
+                    continue;
+                }
+                return toAffectedFileResult(state, getSemanticDiagnosticsOfFile(state, affected, cancellationToken), affected);
+            }
+        }
+        function getSemanticDiagnostics(sourceFile, cancellationToken) {
+            assertSourceFileOkWithoutNextAffectedCall(state, sourceFile);
+            var compilerOptions = ts.Debug.checkDefined(state.program).getCompilerOptions();
+            if (compilerOptions.outFile || compilerOptions.out) {
+                ts.Debug.assert(!state.semanticDiagnosticsPerFile);
+                return ts.Debug.checkDefined(state.program).getSemanticDiagnostics(sourceFile, cancellationToken);
+            }
+            if (sourceFile) {
+                return getSemanticDiagnosticsOfFile(state, sourceFile, cancellationToken);
+            }
+            while (getSemanticDiagnosticsOfNextAffectedFile(cancellationToken)) {
+            }
+            var diagnostics;
+            for (var _i = 0, _a = ts.Debug.checkDefined(state.program).getSourceFiles(); _i < _a.length; _i++) {
+                var sourceFile_1 = _a[_i];
+                diagnostics = ts.addRange(diagnostics, getSemanticDiagnosticsOfFile(state, sourceFile_1, cancellationToken));
+            }
+            return diagnostics || ts.emptyArray;
+        }
+    }
+    ts.createBuilderProgram = createBuilderProgram;
+    function addToAffectedFilesPendingEmit(state, affectedFilePendingEmit, kind) {
+        if (!state.affectedFilesPendingEmit)
+            state.affectedFilesPendingEmit = [];
+        if (!state.affectedFilesPendingEmitKind)
+            state.affectedFilesPendingEmitKind = ts.createMap();
+        var existingKind = state.affectedFilesPendingEmitKind.get(affectedFilePendingEmit);
+        state.affectedFilesPendingEmit.push(affectedFilePendingEmit);
+        state.affectedFilesPendingEmitKind.set(affectedFilePendingEmit, existingKind || kind);
+        if (state.affectedFilesPendingEmitIndex === undefined) {
+            state.affectedFilesPendingEmitIndex = 0;
+        }
+    }
+    function getMapOfReferencedSet(mapLike, toPath) {
+        if (!mapLike)
+            return undefined;
+        var map = ts.createMap();
+        for (var key in mapLike) {
+            if (ts.hasProperty(mapLike, key)) {
+                map.set(toPath(key), ts.arrayToSet(mapLike[key], toPath));
+            }
+        }
+        return map;
+    }
+    function createBuildProgramUsingProgramBuildInfo(program, buildInfoPath, host) {
+        var buildInfoDirectory = ts.getDirectoryPath(ts.getNormalizedAbsolutePath(buildInfoPath, host.getCurrentDirectory()));
+        var getCanonicalFileName = ts.createGetCanonicalFileName(host.useCaseSensitiveFileNames());
+        var fileInfos = ts.createMap();
+        for (var key in program.fileInfos) {
+            if (ts.hasProperty(program.fileInfos, key)) {
+                fileInfos.set(toPath(key), program.fileInfos[key]);
+            }
+        }
+        var state = {
+            fileInfos: fileInfos,
+            compilerOptions: ts.convertToOptionsWithAbsolutePaths(program.options, toAbsolutePath),
+            referencedMap: getMapOfReferencedSet(program.referencedMap, toPath),
+            exportedModulesMap: getMapOfReferencedSet(program.exportedModulesMap, toPath),
+            semanticDiagnosticsPerFile: program.semanticDiagnosticsPerFile && ts.arrayToMap(program.semanticDiagnosticsPerFile, function (value) { return toPath(ts.isString(value) ? value : value[0]); }, function (value) { return ts.isString(value) ? ts.emptyArray : value[1]; }),
+            hasReusableDiagnostic: true
+        };
+        return {
+            getState: function () { return state; },
+            backupState: ts.noop,
+            restoreState: ts.noop,
+            getProgram: ts.notImplemented,
+            getProgramOrUndefined: ts.returnUndefined,
+            releaseProgram: ts.noop,
+            getCompilerOptions: function () { return state.compilerOptions; },
+            getSourceFile: ts.notImplemented,
+            getSourceFiles: ts.notImplemented,
+            getOptionsDiagnostics: ts.notImplemented,
+            getGlobalDiagnostics: ts.notImplemented,
+            getConfigFileParsingDiagnostics: ts.notImplemented,
+            getSyntacticDiagnostics: ts.notImplemented,
+            getDeclarationDiagnostics: ts.notImplemented,
+            getSemanticDiagnostics: ts.notImplemented,
+            emit: ts.notImplemented,
+            getAllDependencies: ts.notImplemented,
+            getCurrentDirectory: ts.notImplemented,
+            emitNextAffectedFile: ts.notImplemented,
+            getSemanticDiagnosticsOfNextAffectedFile: ts.notImplemented,
+            close: ts.noop,
+        };
+        function toPath(path) {
+            return ts.toPath(path, buildInfoDirectory, getCanonicalFileName);
+        }
+        function toAbsolutePath(path) {
+            return ts.getNormalizedAbsolutePath(path, buildInfoDirectory);
+        }
+    }
+    ts.createBuildProgramUsingProgramBuildInfo = createBuildProgramUsingProgramBuildInfo;
+    function createRedirectedBuilderProgram(state, configFileParsingDiagnostics) {
+        return {
+            getState: ts.notImplemented,
+            backupState: ts.noop,
+            restoreState: ts.noop,
+            getProgram: getProgram,
+            getProgramOrUndefined: function () { return state.program; },
+            releaseProgram: function () { return state.program = undefined; },
+            getCompilerOptions: function () { return state.compilerOptions; },
+            getSourceFile: function (fileName) { return getProgram().getSourceFile(fileName); },
+            getSourceFiles: function () { return getProgram().getSourceFiles(); },
+            getOptionsDiagnostics: function (cancellationToken) { return getProgram().getOptionsDiagnostics(cancellationToken); },
+            getGlobalDiagnostics: function (cancellationToken) { return getProgram().getGlobalDiagnostics(cancellationToken); },
+            getConfigFileParsingDiagnostics: function () { return configFileParsingDiagnostics; },
+            getSyntacticDiagnostics: function (sourceFile, cancellationToken) { return getProgram().getSyntacticDiagnostics(sourceFile, cancellationToken); },
+            getDeclarationDiagnostics: function (sourceFile, cancellationToken) { return getProgram().getDeclarationDiagnostics(sourceFile, cancellationToken); },
+            getSemanticDiagnostics: function (sourceFile, cancellationToken) { return getProgram().getSemanticDiagnostics(sourceFile, cancellationToken); },
+            emit: function (sourceFile, writeFile, cancellationToken, emitOnlyDts, customTransformers) { return getProgram().emit(sourceFile, writeFile, cancellationToken, emitOnlyDts, customTransformers); },
+            getAllDependencies: ts.notImplemented,
+            getCurrentDirectory: function () { return getProgram().getCurrentDirectory(); },
+            close: ts.noop,
+        };
+        function getProgram() {
+            return ts.Debug.checkDefined(state.program);
+        }
+    }
+    ts.createRedirectedBuilderProgram = createRedirectedBuilderProgram;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function createSemanticDiagnosticsBuilderProgram(newProgramOrRootNames, hostOrOptions, oldProgramOrHost, configFileParsingDiagnosticsOrOldProgram, configFileParsingDiagnostics, projectReferences) {
+        return ts.createBuilderProgram(ts.BuilderProgramKind.SemanticDiagnosticsBuilderProgram, ts.getBuilderCreationParameters(newProgramOrRootNames, hostOrOptions, oldProgramOrHost, configFileParsingDiagnosticsOrOldProgram, configFileParsingDiagnostics, projectReferences));
+    }
+    ts.createSemanticDiagnosticsBuilderProgram = createSemanticDiagnosticsBuilderProgram;
+    function createEmitAndSemanticDiagnosticsBuilderProgram(newProgramOrRootNames, hostOrOptions, oldProgramOrHost, configFileParsingDiagnosticsOrOldProgram, configFileParsingDiagnostics, projectReferences) {
+        return ts.createBuilderProgram(ts.BuilderProgramKind.EmitAndSemanticDiagnosticsBuilderProgram, ts.getBuilderCreationParameters(newProgramOrRootNames, hostOrOptions, oldProgramOrHost, configFileParsingDiagnosticsOrOldProgram, configFileParsingDiagnostics, projectReferences));
+    }
+    ts.createEmitAndSemanticDiagnosticsBuilderProgram = createEmitAndSemanticDiagnosticsBuilderProgram;
+    function createAbstractBuilder(newProgramOrRootNames, hostOrOptions, oldProgramOrHost, configFileParsingDiagnosticsOrOldProgram, configFileParsingDiagnostics, projectReferences) {
+        var _a = ts.getBuilderCreationParameters(newProgramOrRootNames, hostOrOptions, oldProgramOrHost, configFileParsingDiagnosticsOrOldProgram, configFileParsingDiagnostics, projectReferences), newProgram = _a.newProgram, newConfigFileParsingDiagnostics = _a.configFileParsingDiagnostics;
+        return ts.createRedirectedBuilderProgram({ program: newProgram, compilerOptions: newProgram.getCompilerOptions() }, newConfigFileParsingDiagnostics);
+    }
+    ts.createAbstractBuilder = createAbstractBuilder;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function removeIgnoredPath(path) {
+        if (ts.endsWith(path, "/node_modules/.staging")) {
+            return ts.removeSuffix(path, "/.staging");
+        }
+        return ts.some(ts.ignoredPaths, function (searchPath) { return ts.stringContains(path, searchPath); }) ?
+            undefined :
+            path;
+    }
+    ts.removeIgnoredPath = removeIgnoredPath;
+    function canWatchDirectory(dirPath) {
+        var rootLength = ts.getRootLength(dirPath);
+        if (dirPath.length === rootLength) {
+            return false;
+        }
+        var nextDirectorySeparator = dirPath.indexOf(ts.directorySeparator, rootLength);
+        if (nextDirectorySeparator === -1) {
+            return false;
+        }
+        var pathPartForUserCheck = dirPath.substring(rootLength, nextDirectorySeparator + 1);
+        var isNonDirectorySeparatorRoot = rootLength > 1 || dirPath.charCodeAt(0) !== 47;
+        if (isNonDirectorySeparatorRoot &&
+            dirPath.search(/[a-zA-Z]:/) !== 0 &&
+            pathPartForUserCheck.search(/[a-zA-z]\$\//) === 0) {
+            nextDirectorySeparator = dirPath.indexOf(ts.directorySeparator, nextDirectorySeparator + 1);
+            if (nextDirectorySeparator === -1) {
+                return false;
+            }
+            pathPartForUserCheck = dirPath.substring(rootLength + pathPartForUserCheck.length, nextDirectorySeparator + 1);
+        }
+        if (isNonDirectorySeparatorRoot &&
+            pathPartForUserCheck.search(/users\//i) !== 0) {
+            return true;
+        }
+        for (var searchIndex = nextDirectorySeparator + 1, searchLevels = 2; searchLevels > 0; searchLevels--) {
+            searchIndex = dirPath.indexOf(ts.directorySeparator, searchIndex) + 1;
+            if (searchIndex === 0) {
+                return false;
+            }
+        }
+        return true;
+    }
+    ts.canWatchDirectory = canWatchDirectory;
+    function createResolutionCache(resolutionHost, rootDirForResolution, logChangesWhenResolvingModule) {
+        var filesWithChangedSetOfUnresolvedImports;
+        var filesWithInvalidatedResolutions;
+        var filesWithInvalidatedNonRelativeUnresolvedImports;
+        var nonRelativeExternalModuleResolutions = ts.createMultiMap();
+        var resolutionsWithFailedLookups = [];
+        var resolvedFileToResolution = ts.createMultiMap();
+        var getCurrentDirectory = ts.memoize(function () { return resolutionHost.getCurrentDirectory(); });
+        var cachedDirectoryStructureHost = resolutionHost.getCachedDirectoryStructureHost();
+        var resolvedModuleNames = ts.createMap();
+        var perDirectoryResolvedModuleNames = ts.createCacheWithRedirects();
+        var nonRelativeModuleNameCache = ts.createCacheWithRedirects();
+        var moduleResolutionCache = ts.createModuleResolutionCacheWithMaps(perDirectoryResolvedModuleNames, nonRelativeModuleNameCache, getCurrentDirectory(), resolutionHost.getCanonicalFileName);
+        var resolvedTypeReferenceDirectives = ts.createMap();
+        var perDirectoryResolvedTypeReferenceDirectives = ts.createCacheWithRedirects();
+        var failedLookupDefaultExtensions = [".ts", ".tsx", ".js", ".jsx", ".json"];
+        var customFailedLookupPaths = ts.createMap();
+        var directoryWatchesOfFailedLookups = ts.createMap();
+        var rootDir = rootDirForResolution && ts.removeTrailingDirectorySeparator(ts.getNormalizedAbsolutePath(rootDirForResolution, getCurrentDirectory()));
+        var rootPath = (rootDir && resolutionHost.toPath(rootDir));
+        var rootSplitLength = rootPath !== undefined ? rootPath.split(ts.directorySeparator).length : 0;
+        var typeRootsWatches = ts.createMap();
+        return {
+            startRecordingFilesWithChangedResolutions: startRecordingFilesWithChangedResolutions,
+            finishRecordingFilesWithChangedResolutions: finishRecordingFilesWithChangedResolutions,
+            startCachingPerDirectoryResolution: clearPerDirectoryResolutions,
+            finishCachingPerDirectoryResolution: finishCachingPerDirectoryResolution,
+            resolveModuleNames: resolveModuleNames,
+            getResolvedModuleWithFailedLookupLocationsFromCache: getResolvedModuleWithFailedLookupLocationsFromCache,
+            resolveTypeReferenceDirectives: resolveTypeReferenceDirectives,
+            removeResolutionsFromProjectReferenceRedirects: removeResolutionsFromProjectReferenceRedirects,
+            removeResolutionsOfFile: removeResolutionsOfFile,
+            invalidateResolutionOfFile: invalidateResolutionOfFile,
+            setFilesWithInvalidatedNonRelativeUnresolvedImports: setFilesWithInvalidatedNonRelativeUnresolvedImports,
+            createHasInvalidatedResolution: createHasInvalidatedResolution,
+            updateTypeRootsWatch: updateTypeRootsWatch,
+            closeTypeRootsWatch: closeTypeRootsWatch,
+            clear: clear
+        };
+        function getResolvedModule(resolution) {
+            return resolution.resolvedModule;
+        }
+        function getResolvedTypeReferenceDirective(resolution) {
+            return resolution.resolvedTypeReferenceDirective;
+        }
+        function isInDirectoryPath(dir, file) {
+            if (dir === undefined || file.length <= dir.length) {
+                return false;
+            }
+            return ts.startsWith(file, dir) && file[dir.length] === ts.directorySeparator;
+        }
+        function clear() {
+            ts.clearMap(directoryWatchesOfFailedLookups, ts.closeFileWatcherOf);
+            customFailedLookupPaths.clear();
+            nonRelativeExternalModuleResolutions.clear();
+            closeTypeRootsWatch();
+            resolvedModuleNames.clear();
+            resolvedTypeReferenceDirectives.clear();
+            resolvedFileToResolution.clear();
+            resolutionsWithFailedLookups.length = 0;
+            clearPerDirectoryResolutions();
+        }
+        function startRecordingFilesWithChangedResolutions() {
+            filesWithChangedSetOfUnresolvedImports = [];
+        }
+        function finishRecordingFilesWithChangedResolutions() {
+            var collected = filesWithChangedSetOfUnresolvedImports;
+            filesWithChangedSetOfUnresolvedImports = undefined;
+            return collected;
+        }
+        function isFileWithInvalidatedNonRelativeUnresolvedImports(path) {
+            if (!filesWithInvalidatedNonRelativeUnresolvedImports) {
+                return false;
+            }
+            var value = filesWithInvalidatedNonRelativeUnresolvedImports.get(path);
+            return !!value && !!value.length;
+        }
+        function createHasInvalidatedResolution(forceAllFilesAsInvalidated) {
+            if (forceAllFilesAsInvalidated) {
+                filesWithInvalidatedResolutions = undefined;
+                return ts.returnTrue;
+            }
+            var collected = filesWithInvalidatedResolutions;
+            filesWithInvalidatedResolutions = undefined;
+            return function (path) { return (!!collected && collected.has(path)) ||
+                isFileWithInvalidatedNonRelativeUnresolvedImports(path); };
+        }
+        function clearPerDirectoryResolutions() {
+            perDirectoryResolvedModuleNames.clear();
+            nonRelativeModuleNameCache.clear();
+            perDirectoryResolvedTypeReferenceDirectives.clear();
+            nonRelativeExternalModuleResolutions.forEach(watchFailedLookupLocationOfNonRelativeModuleResolutions);
+            nonRelativeExternalModuleResolutions.clear();
+        }
+        function finishCachingPerDirectoryResolution() {
+            filesWithInvalidatedNonRelativeUnresolvedImports = undefined;
+            clearPerDirectoryResolutions();
+            directoryWatchesOfFailedLookups.forEach(function (watcher, path) {
+                if (watcher.refCount === 0) {
+                    directoryWatchesOfFailedLookups.delete(path);
+                    watcher.watcher.close();
+                }
+            });
+        }
+        function resolveModuleName(moduleName, containingFile, compilerOptions, host, redirectedReference) {
+            var _a;
+            var primaryResult = ts.resolveModuleName(moduleName, containingFile, compilerOptions, host, moduleResolutionCache, redirectedReference);
+            if (!resolutionHost.getGlobalCache) {
+                return primaryResult;
+            }
+            var globalCache = resolutionHost.getGlobalCache();
+            if (globalCache !== undefined && !ts.isExternalModuleNameRelative(moduleName) && !(primaryResult.resolvedModule && ts.extensionIsTS(primaryResult.resolvedModule.extension))) {
+                var _b = ts.loadModuleFromGlobalCache(ts.Debug.checkDefined(resolutionHost.globalCacheResolutionModuleName)(moduleName), resolutionHost.projectName, compilerOptions, host, globalCache), resolvedModule = _b.resolvedModule, failedLookupLocations = _b.failedLookupLocations;
+                if (resolvedModule) {
+                    primaryResult.resolvedModule = resolvedModule;
+                    (_a = primaryResult.failedLookupLocations).push.apply(_a, failedLookupLocations);
+                    return primaryResult;
+                }
+            }
+            return primaryResult;
+        }
+        function resolveNamesWithLocalCache(_a) {
+            var _b;
+            var names = _a.names, containingFile = _a.containingFile, redirectedReference = _a.redirectedReference, cache = _a.cache, perDirectoryCacheWithRedirects = _a.perDirectoryCacheWithRedirects, loader = _a.loader, getResolutionWithResolvedFileName = _a.getResolutionWithResolvedFileName, shouldRetryResolution = _a.shouldRetryResolution, reusedNames = _a.reusedNames, logChanges = _a.logChanges;
+            var path = resolutionHost.toPath(containingFile);
+            var resolutionsInFile = cache.get(path) || cache.set(path, ts.createMap()).get(path);
+            var dirPath = ts.getDirectoryPath(path);
+            var perDirectoryCache = perDirectoryCacheWithRedirects.getOrCreateMapOfCacheRedirects(redirectedReference);
+            var perDirectoryResolution = perDirectoryCache.get(dirPath);
+            if (!perDirectoryResolution) {
+                perDirectoryResolution = ts.createMap();
+                perDirectoryCache.set(dirPath, perDirectoryResolution);
+            }
+            var resolvedModules = [];
+            var compilerOptions = resolutionHost.getCompilationSettings();
+            var hasInvalidatedNonRelativeUnresolvedImport = logChanges && isFileWithInvalidatedNonRelativeUnresolvedImports(path);
+            var program = resolutionHost.getCurrentProgram();
+            var oldRedirect = program && program.getResolvedProjectReferenceToRedirect(containingFile);
+            var unmatchedRedirects = oldRedirect ?
+                !redirectedReference || redirectedReference.sourceFile.path !== oldRedirect.sourceFile.path :
+                !!redirectedReference;
+            var seenNamesInFile = ts.createMap();
+            for (var _i = 0, names_3 = names; _i < names_3.length; _i++) {
+                var name = names_3[_i];
+                var resolution = resolutionsInFile.get(name);
+                if (!seenNamesInFile.has(name) &&
+                    unmatchedRedirects || !resolution || resolution.isInvalidated ||
+                    (hasInvalidatedNonRelativeUnresolvedImport && !ts.isExternalModuleNameRelative(name) && shouldRetryResolution(resolution))) {
+                    var existingResolution = resolution;
+                    var resolutionInDirectory = perDirectoryResolution.get(name);
+                    if (resolutionInDirectory) {
+                        resolution = resolutionInDirectory;
+                    }
+                    else {
+                        resolution = loader(name, containingFile, compilerOptions, ((_b = resolutionHost.getCompilerHost) === null || _b === void 0 ? void 0 : _b.call(resolutionHost)) || resolutionHost, redirectedReference);
+                        perDirectoryResolution.set(name, resolution);
+                    }
+                    resolutionsInFile.set(name, resolution);
+                    watchFailedLookupLocationsOfExternalModuleResolutions(name, resolution, path, getResolutionWithResolvedFileName);
+                    if (existingResolution) {
+                        stopWatchFailedLookupLocationOfResolution(existingResolution, path, getResolutionWithResolvedFileName);
+                    }
+                    if (logChanges && filesWithChangedSetOfUnresolvedImports && !resolutionIsEqualTo(existingResolution, resolution)) {
+                        filesWithChangedSetOfUnresolvedImports.push(path);
+                        logChanges = false;
+                    }
+                }
+                ts.Debug.assert(resolution !== undefined && !resolution.isInvalidated);
+                seenNamesInFile.set(name, true);
+                resolvedModules.push(getResolutionWithResolvedFileName(resolution));
+            }
+            resolutionsInFile.forEach(function (resolution, name) {
+                if (!seenNamesInFile.has(name) && !ts.contains(reusedNames, name)) {
+                    stopWatchFailedLookupLocationOfResolution(resolution, path, getResolutionWithResolvedFileName);
+                    resolutionsInFile.delete(name);
+                }
+            });
+            return resolvedModules;
+            function resolutionIsEqualTo(oldResolution, newResolution) {
+                if (oldResolution === newResolution) {
+                    return true;
+                }
+                if (!oldResolution || !newResolution) {
+                    return false;
+                }
+                var oldResult = getResolutionWithResolvedFileName(oldResolution);
+                var newResult = getResolutionWithResolvedFileName(newResolution);
+                if (oldResult === newResult) {
+                    return true;
+                }
+                if (!oldResult || !newResult) {
+                    return false;
+                }
+                return oldResult.resolvedFileName === newResult.resolvedFileName;
+            }
+        }
+        function resolveTypeReferenceDirectives(typeDirectiveNames, containingFile, redirectedReference) {
+            return resolveNamesWithLocalCache({
+                names: typeDirectiveNames,
+                containingFile: containingFile,
+                redirectedReference: redirectedReference,
+                cache: resolvedTypeReferenceDirectives,
+                perDirectoryCacheWithRedirects: perDirectoryResolvedTypeReferenceDirectives,
+                loader: ts.resolveTypeReferenceDirective,
+                getResolutionWithResolvedFileName: getResolvedTypeReferenceDirective,
+                shouldRetryResolution: function (resolution) { return resolution.resolvedTypeReferenceDirective === undefined; },
+            });
+        }
+        function resolveModuleNames(moduleNames, containingFile, reusedNames, redirectedReference) {
+            return resolveNamesWithLocalCache({
+                names: moduleNames,
+                containingFile: containingFile,
+                redirectedReference: redirectedReference,
+                cache: resolvedModuleNames,
+                perDirectoryCacheWithRedirects: perDirectoryResolvedModuleNames,
+                loader: resolveModuleName,
+                getResolutionWithResolvedFileName: getResolvedModule,
+                shouldRetryResolution: function (resolution) { return !resolution.resolvedModule || !ts.resolutionExtensionIsTSOrJson(resolution.resolvedModule.extension); },
+                reusedNames: reusedNames,
+                logChanges: logChangesWhenResolvingModule
+            });
+        }
+        function getResolvedModuleWithFailedLookupLocationsFromCache(moduleName, containingFile) {
+            var cache = resolvedModuleNames.get(resolutionHost.toPath(containingFile));
+            return cache && cache.get(moduleName);
+        }
+        function isNodeModulesAtTypesDirectory(dirPath) {
+            return ts.endsWith(dirPath, "/node_modules/@types");
+        }
+        function getDirectoryToWatchFailedLookupLocation(failedLookupLocation, failedLookupLocationPath) {
+            if (isInDirectoryPath(rootPath, failedLookupLocationPath)) {
+                failedLookupLocation = ts.isRootedDiskPath(failedLookupLocation) ? ts.normalizePath(failedLookupLocation) : ts.getNormalizedAbsolutePath(failedLookupLocation, getCurrentDirectory());
+                var failedLookupPathSplit = failedLookupLocationPath.split(ts.directorySeparator);
+                var failedLookupSplit = failedLookupLocation.split(ts.directorySeparator);
+                ts.Debug.assert(failedLookupSplit.length === failedLookupPathSplit.length, "FailedLookup: " + failedLookupLocation + " failedLookupLocationPath: " + failedLookupLocationPath);
+                if (failedLookupPathSplit.length > rootSplitLength + 1) {
+                    return {
+                        dir: failedLookupSplit.slice(0, rootSplitLength + 1).join(ts.directorySeparator),
+                        dirPath: failedLookupPathSplit.slice(0, rootSplitLength + 1).join(ts.directorySeparator)
+                    };
+                }
+                else {
+                    return {
+                        dir: rootDir,
+                        dirPath: rootPath,
+                        nonRecursive: false
+                    };
+                }
+            }
+            return getDirectoryToWatchFromFailedLookupLocationDirectory(ts.getDirectoryPath(ts.getNormalizedAbsolutePath(failedLookupLocation, getCurrentDirectory())), ts.getDirectoryPath(failedLookupLocationPath));
+        }
+        function getDirectoryToWatchFromFailedLookupLocationDirectory(dir, dirPath) {
+            while (ts.pathContainsNodeModules(dirPath)) {
+                dir = ts.getDirectoryPath(dir);
+                dirPath = ts.getDirectoryPath(dirPath);
+            }
+            if (ts.isNodeModulesDirectory(dirPath)) {
+                return canWatchDirectory(ts.getDirectoryPath(dirPath)) ? { dir: dir, dirPath: dirPath } : undefined;
+            }
+            var nonRecursive = true;
+            var subDirectoryPath, subDirectory;
+            if (rootPath !== undefined) {
+                while (!isInDirectoryPath(dirPath, rootPath)) {
+                    var parentPath = ts.getDirectoryPath(dirPath);
+                    if (parentPath === dirPath) {
+                        break;
+                    }
+                    nonRecursive = false;
+                    subDirectoryPath = dirPath;
+                    subDirectory = dir;
+                    dirPath = parentPath;
+                    dir = ts.getDirectoryPath(dir);
+                }
+            }
+            return canWatchDirectory(dirPath) ? { dir: subDirectory || dir, dirPath: subDirectoryPath || dirPath, nonRecursive: nonRecursive } : undefined;
+        }
+        function isPathWithDefaultFailedLookupExtension(path) {
+            return ts.fileExtensionIsOneOf(path, failedLookupDefaultExtensions);
+        }
+        function watchFailedLookupLocationsOfExternalModuleResolutions(name, resolution, filePath, getResolutionWithResolvedFileName) {
+            if (resolution.refCount) {
+                resolution.refCount++;
+                ts.Debug.assertDefined(resolution.files);
+            }
+            else {
+                resolution.refCount = 1;
+                ts.Debug.assert(resolution.files === undefined);
+                if (ts.isExternalModuleNameRelative(name)) {
+                    watchFailedLookupLocationOfResolution(resolution);
+                }
+                else {
+                    nonRelativeExternalModuleResolutions.add(name, resolution);
+                }
+                var resolved = getResolutionWithResolvedFileName(resolution);
+                if (resolved && resolved.resolvedFileName) {
+                    resolvedFileToResolution.add(resolutionHost.toPath(resolved.resolvedFileName), resolution);
+                }
+            }
+            (resolution.files || (resolution.files = [])).push(filePath);
+        }
+        function watchFailedLookupLocationOfResolution(resolution) {
+            ts.Debug.assert(!!resolution.refCount);
+            var failedLookupLocations = resolution.failedLookupLocations;
+            if (!failedLookupLocations.length)
+                return;
+            resolutionsWithFailedLookups.push(resolution);
+            var setAtRoot = false;
+            for (var _i = 0, failedLookupLocations_1 = failedLookupLocations; _i < failedLookupLocations_1.length; _i++) {
+                var failedLookupLocation = failedLookupLocations_1[_i];
+                var failedLookupLocationPath = resolutionHost.toPath(failedLookupLocation);
+                var toWatch = getDirectoryToWatchFailedLookupLocation(failedLookupLocation, failedLookupLocationPath);
+                if (toWatch) {
+                    var dir = toWatch.dir, dirPath = toWatch.dirPath, nonRecursive = toWatch.nonRecursive;
+                    if (!isPathWithDefaultFailedLookupExtension(failedLookupLocationPath)) {
+                        var refCount = customFailedLookupPaths.get(failedLookupLocationPath) || 0;
+                        customFailedLookupPaths.set(failedLookupLocationPath, refCount + 1);
+                    }
+                    if (dirPath === rootPath) {
+                        ts.Debug.assert(!nonRecursive);
+                        setAtRoot = true;
+                    }
+                    else {
+                        setDirectoryWatcher(dir, dirPath, nonRecursive);
+                    }
+                }
+            }
+            if (setAtRoot) {
+                setDirectoryWatcher(rootDir, rootPath, true);
+            }
+        }
+        function watchFailedLookupLocationOfNonRelativeModuleResolutions(resolutions, name) {
+            var program = resolutionHost.getCurrentProgram();
+            if (!program || !program.getTypeChecker().tryFindAmbientModuleWithoutAugmentations(name)) {
+                resolutions.forEach(watchFailedLookupLocationOfResolution);
+            }
+        }
+        function setDirectoryWatcher(dir, dirPath, nonRecursive) {
+            var dirWatcher = directoryWatchesOfFailedLookups.get(dirPath);
+            if (dirWatcher) {
+                ts.Debug.assert(!!nonRecursive === !!dirWatcher.nonRecursive);
+                dirWatcher.refCount++;
+            }
+            else {
+                directoryWatchesOfFailedLookups.set(dirPath, { watcher: createDirectoryWatcher(dir, dirPath, nonRecursive), refCount: 1, nonRecursive: nonRecursive });
+            }
+        }
+        function stopWatchFailedLookupLocationOfResolution(resolution, filePath, getResolutionWithResolvedFileName) {
+            ts.unorderedRemoveItem(ts.Debug.assertDefined(resolution.files), filePath);
+            resolution.refCount--;
+            if (resolution.refCount) {
+                return;
+            }
+            var resolved = getResolutionWithResolvedFileName(resolution);
+            if (resolved && resolved.resolvedFileName) {
+                resolvedFileToResolution.remove(resolutionHost.toPath(resolved.resolvedFileName), resolution);
+            }
+            if (!ts.unorderedRemoveItem(resolutionsWithFailedLookups, resolution)) {
+                return;
+            }
+            var failedLookupLocations = resolution.failedLookupLocations;
+            var removeAtRoot = false;
+            for (var _i = 0, failedLookupLocations_2 = failedLookupLocations; _i < failedLookupLocations_2.length; _i++) {
+                var failedLookupLocation = failedLookupLocations_2[_i];
+                var failedLookupLocationPath = resolutionHost.toPath(failedLookupLocation);
+                var toWatch = getDirectoryToWatchFailedLookupLocation(failedLookupLocation, failedLookupLocationPath);
+                if (toWatch) {
+                    var dirPath = toWatch.dirPath;
+                    var refCount = customFailedLookupPaths.get(failedLookupLocationPath);
+                    if (refCount) {
+                        if (refCount === 1) {
+                            customFailedLookupPaths.delete(failedLookupLocationPath);
+                        }
+                        else {
+                            ts.Debug.assert(refCount > 1);
+                            customFailedLookupPaths.set(failedLookupLocationPath, refCount - 1);
+                        }
+                    }
+                    if (dirPath === rootPath) {
+                        removeAtRoot = true;
+                    }
+                    else {
+                        removeDirectoryWatcher(dirPath);
+                    }
+                }
+            }
+            if (removeAtRoot) {
+                removeDirectoryWatcher(rootPath);
+            }
+        }
+        function removeDirectoryWatcher(dirPath) {
+            var dirWatcher = directoryWatchesOfFailedLookups.get(dirPath);
+            dirWatcher.refCount--;
+        }
+        function createDirectoryWatcher(directory, dirPath, nonRecursive) {
+            return resolutionHost.watchDirectoryOfFailedLookupLocation(directory, function (fileOrDirectory) {
+                var fileOrDirectoryPath = resolutionHost.toPath(fileOrDirectory);
+                if (cachedDirectoryStructureHost) {
+                    cachedDirectoryStructureHost.addOrDeleteFileOrDirectory(fileOrDirectory, fileOrDirectoryPath);
+                }
+                if (invalidateResolutionOfFailedLookupLocation(fileOrDirectoryPath, dirPath === fileOrDirectoryPath)) {
+                    resolutionHost.onInvalidatedResolution();
+                }
+            }, nonRecursive ? 0 : 1);
+        }
+        function removeResolutionsOfFileFromCache(cache, filePath, getResolutionWithResolvedFileName) {
+            var resolutions = cache.get(filePath);
+            if (resolutions) {
+                resolutions.forEach(function (resolution) { return stopWatchFailedLookupLocationOfResolution(resolution, filePath, getResolutionWithResolvedFileName); });
+                cache.delete(filePath);
+            }
+        }
+        function removeResolutionsFromProjectReferenceRedirects(filePath) {
+            if (!ts.fileExtensionIs(filePath, ".json")) {
+                return;
+            }
+            var program = resolutionHost.getCurrentProgram();
+            if (!program) {
+                return;
+            }
+            var resolvedProjectReference = program.getResolvedProjectReferenceByPath(filePath);
+            if (!resolvedProjectReference) {
+                return;
+            }
+            resolvedProjectReference.commandLine.fileNames.forEach(function (f) { return removeResolutionsOfFile(resolutionHost.toPath(f)); });
+        }
+        function removeResolutionsOfFile(filePath) {
+            removeResolutionsOfFileFromCache(resolvedModuleNames, filePath, getResolvedModule);
+            removeResolutionsOfFileFromCache(resolvedTypeReferenceDirectives, filePath, getResolvedTypeReferenceDirective);
+        }
+        function invalidateResolution(resolution) {
+            resolution.isInvalidated = true;
+            var changedInAutoTypeReferenced = false;
+            for (var _i = 0, _a = ts.Debug.assertDefined(resolution.files); _i < _a.length; _i++) {
+                var containingFilePath = _a[_i];
+                (filesWithInvalidatedResolutions || (filesWithInvalidatedResolutions = ts.createMap())).set(containingFilePath, true);
+                changedInAutoTypeReferenced = changedInAutoTypeReferenced || containingFilePath.endsWith(ts.inferredTypesContainingFile);
+            }
+            if (changedInAutoTypeReferenced) {
+                resolutionHost.onChangedAutomaticTypeDirectiveNames();
+            }
+        }
+        function invalidateResolutionOfFile(filePath) {
+            removeResolutionsOfFile(filePath);
+            ts.forEach(resolvedFileToResolution.get(filePath), invalidateResolution);
+        }
+        function setFilesWithInvalidatedNonRelativeUnresolvedImports(filesMap) {
+            ts.Debug.assert(filesWithInvalidatedNonRelativeUnresolvedImports === filesMap || filesWithInvalidatedNonRelativeUnresolvedImports === undefined);
+            filesWithInvalidatedNonRelativeUnresolvedImports = filesMap;
+        }
+        function invalidateResolutionOfFailedLookupLocation(fileOrDirectoryPath, isCreatingWatchedDirectory) {
+            var isChangedFailedLookupLocation;
+            if (isCreatingWatchedDirectory) {
+                isChangedFailedLookupLocation = function (location) { return isInDirectoryPath(fileOrDirectoryPath, resolutionHost.toPath(location)); };
+            }
+            else {
+                var updatedPath = removeIgnoredPath(fileOrDirectoryPath);
+                if (!updatedPath)
+                    return false;
+                fileOrDirectoryPath = updatedPath;
+                if (resolutionHost.fileIsOpen(fileOrDirectoryPath)) {
+                    return false;
+                }
+                var dirOfFileOrDirectory = ts.getDirectoryPath(fileOrDirectoryPath);
+                if (isNodeModulesAtTypesDirectory(fileOrDirectoryPath) || ts.isNodeModulesDirectory(fileOrDirectoryPath) ||
+                    isNodeModulesAtTypesDirectory(dirOfFileOrDirectory) || ts.isNodeModulesDirectory(dirOfFileOrDirectory)) {
+                    isChangedFailedLookupLocation = function (location) {
+                        var locationPath = resolutionHost.toPath(location);
+                        return locationPath === fileOrDirectoryPath || ts.startsWith(resolutionHost.toPath(location), fileOrDirectoryPath);
+                    };
+                }
+                else {
+                    if (!isPathWithDefaultFailedLookupExtension(fileOrDirectoryPath) && !customFailedLookupPaths.has(fileOrDirectoryPath)) {
+                        return false;
+                    }
+                    if (ts.isEmittedFileOfProgram(resolutionHost.getCurrentProgram(), fileOrDirectoryPath)) {
+                        return false;
+                    }
+                    isChangedFailedLookupLocation = function (location) { return resolutionHost.toPath(location) === fileOrDirectoryPath; };
+                }
+            }
+            var invalidated = false;
+            for (var _i = 0, resolutionsWithFailedLookups_1 = resolutionsWithFailedLookups; _i < resolutionsWithFailedLookups_1.length; _i++) {
+                var resolution = resolutionsWithFailedLookups_1[_i];
+                if (resolution.failedLookupLocations.some(isChangedFailedLookupLocation)) {
+                    invalidateResolution(resolution);
+                    invalidated = true;
+                }
+            }
+            return invalidated;
+        }
+        function closeTypeRootsWatch() {
+            ts.clearMap(typeRootsWatches, ts.closeFileWatcher);
+        }
+        function getDirectoryToWatchFailedLookupLocationFromTypeRoot(typeRoot, typeRootPath) {
+            if (isInDirectoryPath(rootPath, typeRootPath)) {
+                return rootPath;
+            }
+            var toWatch = getDirectoryToWatchFromFailedLookupLocationDirectory(typeRoot, typeRootPath);
+            return toWatch && directoryWatchesOfFailedLookups.has(toWatch.dirPath) ? toWatch.dirPath : undefined;
+        }
+        function createTypeRootsWatch(typeRootPath, typeRoot) {
+            return resolutionHost.watchTypeRootsDirectory(typeRoot, function (fileOrDirectory) {
+                var fileOrDirectoryPath = resolutionHost.toPath(fileOrDirectory);
+                if (cachedDirectoryStructureHost) {
+                    cachedDirectoryStructureHost.addOrDeleteFileOrDirectory(fileOrDirectory, fileOrDirectoryPath);
+                }
+                resolutionHost.onChangedAutomaticTypeDirectiveNames();
+                var dirPath = getDirectoryToWatchFailedLookupLocationFromTypeRoot(typeRoot, typeRootPath);
+                if (dirPath && invalidateResolutionOfFailedLookupLocation(fileOrDirectoryPath, dirPath === fileOrDirectoryPath)) {
+                    resolutionHost.onInvalidatedResolution();
+                }
+            }, 1);
+        }
+        function updateTypeRootsWatch() {
+            var options = resolutionHost.getCompilationSettings();
+            if (options.types) {
+                closeTypeRootsWatch();
+                return;
+            }
+            var typeRoots = ts.getEffectiveTypeRoots(options, { directoryExists: directoryExistsForTypeRootWatch, getCurrentDirectory: getCurrentDirectory });
+            if (typeRoots) {
+                ts.mutateMap(typeRootsWatches, ts.arrayToMap(typeRoots, function (tr) { return resolutionHost.toPath(tr); }), {
+                    createNewValue: createTypeRootsWatch,
+                    onDeleteValue: ts.closeFileWatcher
+                });
+            }
+            else {
+                closeTypeRootsWatch();
+            }
+        }
+        function directoryExistsForTypeRootWatch(nodeTypesDirectory) {
+            var dir = ts.getDirectoryPath(ts.getDirectoryPath(nodeTypesDirectory));
+            var dirPath = resolutionHost.toPath(dir);
+            return dirPath === rootPath || canWatchDirectory(dirPath);
+        }
+    }
+    ts.createResolutionCache = createResolutionCache;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var moduleSpecifiers;
+    (function (moduleSpecifiers) {
+        function getPreferences(_a, compilerOptions, importingSourceFile) {
+            var importModuleSpecifierPreference = _a.importModuleSpecifierPreference, importModuleSpecifierEnding = _a.importModuleSpecifierEnding;
+            return {
+                relativePreference: importModuleSpecifierPreference === "relative" ? 0 : importModuleSpecifierPreference === "non-relative" ? 1 : 2,
+                ending: getEnding(),
+            };
+            function getEnding() {
+                switch (importModuleSpecifierEnding) {
+                    case "minimal": return 0;
+                    case "index": return 1;
+                    case "js": return 2;
+                    default: return usesJsExtensionOnImports(importingSourceFile) ? 2
+                        : ts.getEmitModuleResolutionKind(compilerOptions) !== ts.ModuleResolutionKind.NodeJs ? 1 : 0;
+                }
+            }
+        }
+        function getPreferencesForUpdate(compilerOptions, oldImportSpecifier) {
+            return {
+                relativePreference: ts.isExternalModuleNameRelative(oldImportSpecifier) ? 0 : 1,
+                ending: ts.hasJSFileExtension(oldImportSpecifier) ?
+                    2 :
+                    ts.getEmitModuleResolutionKind(compilerOptions) !== ts.ModuleResolutionKind.NodeJs || ts.endsWith(oldImportSpecifier, "index") ? 1 : 0,
+            };
+        }
+        function updateModuleSpecifier(compilerOptions, importingSourceFileName, toFileName, host, oldImportSpecifier) {
+            var res = getModuleSpecifierWorker(compilerOptions, importingSourceFileName, toFileName, host, getPreferencesForUpdate(compilerOptions, oldImportSpecifier));
+            if (res === oldImportSpecifier)
+                return undefined;
+            return res;
+        }
+        moduleSpecifiers.updateModuleSpecifier = updateModuleSpecifier;
+        function getModuleSpecifier(compilerOptions, importingSourceFile, importingSourceFileName, toFileName, host, preferences) {
+            if (preferences === void 0) { preferences = {}; }
+            return getModuleSpecifierWorker(compilerOptions, importingSourceFileName, toFileName, host, getPreferences(preferences, compilerOptions, importingSourceFile));
+        }
+        moduleSpecifiers.getModuleSpecifier = getModuleSpecifier;
+        function getNodeModulesPackageName(compilerOptions, importingSourceFileName, nodeModulesFileName, host) {
+            var info = getInfo(importingSourceFileName, host);
+            var modulePaths = getAllModulePaths(importingSourceFileName, nodeModulesFileName, host);
+            return ts.firstDefined(modulePaths, function (moduleFileName) { return tryGetModuleNameAsNodeModule(moduleFileName, info, host, compilerOptions, true); });
+        }
+        moduleSpecifiers.getNodeModulesPackageName = getNodeModulesPackageName;
+        function getModuleSpecifierWorker(compilerOptions, importingSourceFileName, toFileName, host, preferences) {
+            var info = getInfo(importingSourceFileName, host);
+            var modulePaths = getAllModulePaths(importingSourceFileName, toFileName, host);
+            return ts.firstDefined(modulePaths, function (moduleFileName) { return tryGetModuleNameAsNodeModule(moduleFileName, info, host, compilerOptions); }) ||
+                getLocalModuleSpecifier(toFileName, info, compilerOptions, preferences);
+        }
+        function getModuleSpecifiers(moduleSymbol, compilerOptions, importingSourceFile, host, userPreferences) {
+            var ambient = tryGetModuleNameFromAmbientModule(moduleSymbol);
+            if (ambient)
+                return [ambient];
+            var info = getInfo(importingSourceFile.path, host);
+            var moduleSourceFile = ts.getSourceFileOfNode(moduleSymbol.valueDeclaration || ts.getNonAugmentationDeclaration(moduleSymbol));
+            var modulePaths = getAllModulePaths(importingSourceFile.path, moduleSourceFile.originalFileName, host);
+            var preferences = getPreferences(userPreferences, compilerOptions, importingSourceFile);
+            var global = ts.mapDefined(modulePaths, function (moduleFileName) { return tryGetModuleNameAsNodeModule(moduleFileName, info, host, compilerOptions); });
+            return global.length ? global : modulePaths.map(function (moduleFileName) { return getLocalModuleSpecifier(moduleFileName, info, compilerOptions, preferences); });
+        }
+        moduleSpecifiers.getModuleSpecifiers = getModuleSpecifiers;
+        function getInfo(importingSourceFileName, host) {
+            var getCanonicalFileName = ts.createGetCanonicalFileName(host.useCaseSensitiveFileNames ? host.useCaseSensitiveFileNames() : true);
+            var sourceDirectory = ts.getDirectoryPath(importingSourceFileName);
+            return { getCanonicalFileName: getCanonicalFileName, sourceDirectory: sourceDirectory };
+        }
+        function getLocalModuleSpecifier(moduleFileName, _a, compilerOptions, _b) {
+            var getCanonicalFileName = _a.getCanonicalFileName, sourceDirectory = _a.sourceDirectory;
+            var ending = _b.ending, relativePreference = _b.relativePreference;
+            var baseUrl = compilerOptions.baseUrl, paths = compilerOptions.paths, rootDirs = compilerOptions.rootDirs;
+            var relativePath = rootDirs && tryGetModuleNameFromRootDirs(rootDirs, moduleFileName, sourceDirectory, getCanonicalFileName, ending, compilerOptions) ||
+                removeExtensionAndIndexPostFix(ts.ensurePathIsNonModuleName(ts.getRelativePathFromDirectory(sourceDirectory, moduleFileName, getCanonicalFileName)), ending, compilerOptions);
+            if (!baseUrl || relativePreference === 0) {
+                return relativePath;
+            }
+            var relativeToBaseUrl = getRelativePathIfInDirectory(moduleFileName, baseUrl, getCanonicalFileName);
+            if (!relativeToBaseUrl) {
+                return relativePath;
+            }
+            var importRelativeToBaseUrl = removeExtensionAndIndexPostFix(relativeToBaseUrl, ending, compilerOptions);
+            var fromPaths = paths && tryGetModuleNameFromPaths(ts.removeFileExtension(relativeToBaseUrl), importRelativeToBaseUrl, paths);
+            var nonRelative = fromPaths === undefined ? importRelativeToBaseUrl : fromPaths;
+            if (relativePreference === 1) {
+                return nonRelative;
+            }
+            if (relativePreference !== 2)
+                ts.Debug.assertNever(relativePreference);
+            return isPathRelativeToParent(nonRelative) || countPathComponents(relativePath) < countPathComponents(nonRelative) ? relativePath : nonRelative;
+        }
+        function countPathComponents(path) {
+            var count = 0;
+            for (var i = ts.startsWith(path, "./") ? 2 : 0; i < path.length; i++) {
+                if (path.charCodeAt(i) === 47)
+                    count++;
+            }
+            return count;
+        }
+        moduleSpecifiers.countPathComponents = countPathComponents;
+        function usesJsExtensionOnImports(_a) {
+            var imports = _a.imports;
+            return ts.firstDefined(imports, function (_a) {
+                var text = _a.text;
+                return ts.pathIsRelative(text) ? ts.hasJSFileExtension(text) : undefined;
+            }) || false;
+        }
+        function numberOfDirectorySeparators(str) {
+            var match = str.match(/\//g);
+            return match ? match.length : 0;
+        }
+        function comparePathsByNumberOfDirectorySeparators(a, b) {
+            return ts.compareValues(numberOfDirectorySeparators(a), numberOfDirectorySeparators(b));
+        }
+        function forEachFileNameOfModule(importingFileName, importedFileName, host, preferSymlinks, cb) {
+            var getCanonicalFileName = ts.hostGetCanonicalFileName(host);
+            var cwd = host.getCurrentDirectory();
+            var referenceRedirect = host.isSourceOfProjectReferenceRedirect(importedFileName) ? host.getProjectReferenceRedirect(importedFileName) : undefined;
+            var redirects = host.redirectTargetsMap.get(ts.toPath(importedFileName, cwd, getCanonicalFileName)) || ts.emptyArray;
+            var importedFileNames = __spreadArrays((referenceRedirect ? [referenceRedirect] : ts.emptyArray), [importedFileName], redirects);
+            var targets = importedFileNames.map(function (f) { return ts.getNormalizedAbsolutePath(f, cwd); });
+            if (!preferSymlinks) {
+                var result_12 = ts.forEach(targets, cb);
+                if (result_12)
+                    return result_12;
+            }
+            var links = host.getProbableSymlinks
+                ? host.getProbableSymlinks(host.getSourceFiles())
+                : ts.discoverProbableSymlinks(host.getSourceFiles(), getCanonicalFileName, cwd);
+            var compareStrings = (!host.useCaseSensitiveFileNames || host.useCaseSensitiveFileNames()) ? ts.compareStringsCaseSensitive : ts.compareStringsCaseInsensitive;
+            var result = ts.forEachEntry(links, function (resolved, path) {
+                if (ts.startsWithDirectory(importingFileName, resolved, getCanonicalFileName)) {
+                    return undefined;
+                }
+                var target = ts.find(targets, function (t) { return compareStrings(t.slice(0, resolved.length + 1), resolved + "/") === 0; });
+                if (target === undefined)
+                    return undefined;
+                var relative = ts.getRelativePathFromDirectory(resolved, target, getCanonicalFileName);
+                var option = ts.resolvePath(path, relative);
+                if (!host.fileExists || host.fileExists(option)) {
+                    var result_13 = cb(option);
+                    if (result_13)
+                        return result_13;
+                }
+            });
+            return result ||
+                (preferSymlinks ? ts.forEach(targets, cb) : undefined);
+        }
+        moduleSpecifiers.forEachFileNameOfModule = forEachFileNameOfModule;
+        function getAllModulePaths(importingFileName, importedFileName, host) {
+            var cwd = host.getCurrentDirectory();
+            var getCanonicalFileName = ts.hostGetCanonicalFileName(host);
+            var allFileNames = ts.createMap();
+            var importedFileFromNodeModules = false;
+            forEachFileNameOfModule(importingFileName, importedFileName, host, true, function (path) {
+                allFileNames.set(path, getCanonicalFileName(path));
+                importedFileFromNodeModules = importedFileFromNodeModules || ts.pathContainsNodeModules(path);
+            });
+            var sortedPaths = [];
+            var _loop_20 = function (directory) {
+                var directoryStart = ts.ensureTrailingDirectorySeparator(directory);
+                var pathsInDirectory;
+                allFileNames.forEach(function (canonicalFileName, fileName) {
+                    if (ts.startsWith(canonicalFileName, directoryStart)) {
+                        if (!importedFileFromNodeModules || ts.pathContainsNodeModules(fileName)) {
+                            (pathsInDirectory || (pathsInDirectory = [])).push(fileName);
+                        }
+                        allFileNames.delete(fileName);
+                    }
+                });
+                if (pathsInDirectory) {
+                    if (pathsInDirectory.length > 1) {
+                        pathsInDirectory.sort(comparePathsByNumberOfDirectorySeparators);
+                    }
+                    sortedPaths.push.apply(sortedPaths, pathsInDirectory);
+                }
+                var newDirectory = ts.getDirectoryPath(directory);
+                if (newDirectory === directory)
+                    return out_directory_1 = directory, "break";
+                directory = newDirectory;
+                out_directory_1 = directory;
+            };
+            var out_directory_1;
+            for (var directory = ts.getDirectoryPath(ts.toPath(importingFileName, cwd, getCanonicalFileName)); allFileNames.size !== 0;) {
+                var state_8 = _loop_20(directory);
+                directory = out_directory_1;
+                if (state_8 === "break")
+                    break;
+            }
+            if (allFileNames.size) {
+                var remainingPaths = ts.arrayFrom(allFileNames.values());
+                if (remainingPaths.length > 1)
+                    remainingPaths.sort(comparePathsByNumberOfDirectorySeparators);
+                sortedPaths.push.apply(sortedPaths, remainingPaths);
+            }
+            return sortedPaths;
+        }
+        function tryGetModuleNameFromAmbientModule(moduleSymbol) {
+            var decl = ts.find(moduleSymbol.declarations, function (d) { return ts.isNonGlobalAmbientModule(d) && (!ts.isExternalModuleAugmentation(d) || !ts.isExternalModuleNameRelative(ts.getTextOfIdentifierOrLiteral(d.name))); });
+            if (decl) {
+                return decl.name.text;
+            }
+        }
+        function tryGetModuleNameFromPaths(relativeToBaseUrlWithIndex, relativeToBaseUrl, paths) {
+            for (var key in paths) {
+                for (var _i = 0, _a = paths[key]; _i < _a.length; _i++) {
+                    var patternText_1 = _a[_i];
+                    var pattern = ts.removeFileExtension(ts.normalizePath(patternText_1));
+                    var indexOfStar = pattern.indexOf("*");
+                    if (indexOfStar !== -1) {
+                        var prefix = pattern.substr(0, indexOfStar);
+                        var suffix = pattern.substr(indexOfStar + 1);
+                        if (relativeToBaseUrl.length >= prefix.length + suffix.length &&
+                            ts.startsWith(relativeToBaseUrl, prefix) &&
+                            ts.endsWith(relativeToBaseUrl, suffix) ||
+                            !suffix && relativeToBaseUrl === ts.removeTrailingDirectorySeparator(prefix)) {
+                            var matchedStar = relativeToBaseUrl.substr(prefix.length, relativeToBaseUrl.length - suffix.length);
+                            return key.replace("*", matchedStar);
+                        }
+                    }
+                    else if (pattern === relativeToBaseUrl || pattern === relativeToBaseUrlWithIndex) {
+                        return key;
+                    }
+                }
+            }
+        }
+        function tryGetModuleNameFromRootDirs(rootDirs, moduleFileName, sourceDirectory, getCanonicalFileName, ending, compilerOptions) {
+            var normalizedTargetPath = getPathRelativeToRootDirs(moduleFileName, rootDirs, getCanonicalFileName);
+            if (normalizedTargetPath === undefined) {
+                return undefined;
+            }
+            var normalizedSourcePath = getPathRelativeToRootDirs(sourceDirectory, rootDirs, getCanonicalFileName);
+            var relativePath = normalizedSourcePath !== undefined ? ts.ensurePathIsNonModuleName(ts.getRelativePathFromDirectory(normalizedSourcePath, normalizedTargetPath, getCanonicalFileName)) : normalizedTargetPath;
+            return ts.getEmitModuleResolutionKind(compilerOptions) === ts.ModuleResolutionKind.NodeJs
+                ? removeExtensionAndIndexPostFix(relativePath, ending, compilerOptions)
+                : ts.removeFileExtension(relativePath);
+        }
+        function tryGetModuleNameAsNodeModule(moduleFileName, _a, host, options, packageNameOnly) {
+            var getCanonicalFileName = _a.getCanonicalFileName, sourceDirectory = _a.sourceDirectory;
+            if (!host.fileExists || !host.readFile) {
+                return undefined;
+            }
+            var parts = getNodeModulePathParts(moduleFileName);
+            if (!parts) {
+                return undefined;
+            }
+            var moduleSpecifier = moduleFileName;
+            if (!packageNameOnly) {
+                var packageRootIndex = parts.packageRootIndex;
+                var moduleFileNameForExtensionless = void 0;
+                while (true) {
+                    var _b = tryDirectoryWithPackageJson(packageRootIndex), moduleFileToTry = _b.moduleFileToTry, packageRootPath = _b.packageRootPath;
+                    if (packageRootPath) {
+                        moduleSpecifier = packageRootPath;
+                        break;
+                    }
+                    if (!moduleFileNameForExtensionless)
+                        moduleFileNameForExtensionless = moduleFileToTry;
+                    packageRootIndex = moduleFileName.indexOf(ts.directorySeparator, packageRootIndex + 1);
+                    if (packageRootIndex === -1) {
+                        moduleSpecifier = getExtensionlessFileName(moduleFileNameForExtensionless);
+                        break;
+                    }
+                }
+            }
+            var globalTypingsCacheLocation = host.getGlobalTypingsCacheLocation && host.getGlobalTypingsCacheLocation();
+            var pathToTopLevelNodeModules = getCanonicalFileName(moduleSpecifier.substring(0, parts.topLevelNodeModulesIndex));
+            if (!(ts.startsWith(sourceDirectory, pathToTopLevelNodeModules) || globalTypingsCacheLocation && ts.startsWith(getCanonicalFileName(globalTypingsCacheLocation), pathToTopLevelNodeModules))) {
+                return undefined;
+            }
+            var nodeModulesDirectoryName = moduleSpecifier.substring(parts.topLevelPackageNameIndex + 1);
+            var packageName = ts.getPackageNameFromTypesPackageName(nodeModulesDirectoryName);
+            return ts.getEmitModuleResolutionKind(options) !== ts.ModuleResolutionKind.NodeJs && packageName === nodeModulesDirectoryName ? undefined : packageName;
+            function tryDirectoryWithPackageJson(packageRootIndex) {
+                var packageRootPath = moduleFileName.substring(0, packageRootIndex);
+                var packageJsonPath = ts.combinePaths(packageRootPath, "package.json");
+                var moduleFileToTry = moduleFileName;
+                if (host.fileExists(packageJsonPath)) {
+                    var packageJsonContent = JSON.parse(host.readFile(packageJsonPath));
+                    var versionPaths = packageJsonContent.typesVersions
+                        ? ts.getPackageJsonTypesVersionsPaths(packageJsonContent.typesVersions)
+                        : undefined;
+                    if (versionPaths) {
+                        var subModuleName = moduleFileName.slice(packageRootPath.length + 1);
+                        var fromPaths = tryGetModuleNameFromPaths(ts.removeFileExtension(subModuleName), removeExtensionAndIndexPostFix(subModuleName, 0, options), versionPaths.paths);
+                        if (fromPaths !== undefined) {
+                            moduleFileToTry = ts.combinePaths(packageRootPath, fromPaths);
+                        }
+                    }
+                    var mainFileRelative = packageJsonContent.typings || packageJsonContent.types || packageJsonContent.main;
+                    if (ts.isString(mainFileRelative)) {
+                        var mainExportFile = ts.toPath(mainFileRelative, packageRootPath, getCanonicalFileName);
+                        if (ts.removeFileExtension(mainExportFile) === ts.removeFileExtension(getCanonicalFileName(moduleFileToTry))) {
+                            return { packageRootPath: packageRootPath, moduleFileToTry: moduleFileToTry };
+                        }
+                    }
+                }
+                return { moduleFileToTry: moduleFileToTry };
+            }
+            function getExtensionlessFileName(path) {
+                var fullModulePathWithoutExtension = ts.removeFileExtension(path);
+                if (getCanonicalFileName(fullModulePathWithoutExtension.substring(parts.fileNameIndex)) === "/index" && !tryGetAnyFileFromPath(host, fullModulePathWithoutExtension.substring(0, parts.fileNameIndex))) {
+                    return fullModulePathWithoutExtension.substring(0, parts.fileNameIndex);
+                }
+                return fullModulePathWithoutExtension;
+            }
+        }
+        function tryGetAnyFileFromPath(host, path) {
+            if (!host.fileExists)
+                return;
+            var extensions = ts.getSupportedExtensions({ allowJs: true }, [{ extension: "node", isMixedContent: false }, { extension: "json", isMixedContent: false, scriptKind: 6 }]);
+            for (var _i = 0, extensions_3 = extensions; _i < extensions_3.length; _i++) {
+                var e = extensions_3[_i];
+                var fullPath = path + e;
+                if (host.fileExists(fullPath)) {
+                    return fullPath;
+                }
+            }
+        }
+        function getNodeModulePathParts(fullPath) {
+            var topLevelNodeModulesIndex = 0;
+            var topLevelPackageNameIndex = 0;
+            var packageRootIndex = 0;
+            var fileNameIndex = 0;
+            var partStart = 0;
+            var partEnd = 0;
+            var state = 0;
+            while (partEnd >= 0) {
+                partStart = partEnd;
+                partEnd = fullPath.indexOf("/", partStart + 1);
+                switch (state) {
+                    case 0:
+                        if (fullPath.indexOf(ts.nodeModulesPathPart, partStart) === partStart) {
+                            topLevelNodeModulesIndex = partStart;
+                            topLevelPackageNameIndex = partEnd;
+                            state = 1;
+                        }
+                        break;
+                    case 1:
+                    case 2:
+                        if (state === 1 && fullPath.charAt(partStart + 1) === "@") {
+                            state = 2;
+                        }
+                        else {
+                            packageRootIndex = partEnd;
+                            state = 3;
+                        }
+                        break;
+                    case 3:
+                        if (fullPath.indexOf(ts.nodeModulesPathPart, partStart) === partStart) {
+                            state = 1;
+                        }
+                        else {
+                            state = 3;
+                        }
+                        break;
+                }
+            }
+            fileNameIndex = partStart;
+            return state > 1 ? { topLevelNodeModulesIndex: topLevelNodeModulesIndex, topLevelPackageNameIndex: topLevelPackageNameIndex, packageRootIndex: packageRootIndex, fileNameIndex: fileNameIndex } : undefined;
+        }
+        function getPathRelativeToRootDirs(path, rootDirs, getCanonicalFileName) {
+            return ts.firstDefined(rootDirs, function (rootDir) {
+                var relativePath = getRelativePathIfInDirectory(path, rootDir, getCanonicalFileName);
+                return isPathRelativeToParent(relativePath) ? undefined : relativePath;
+            });
+        }
+        function removeExtensionAndIndexPostFix(fileName, ending, options) {
+            if (ts.fileExtensionIs(fileName, ".json"))
+                return fileName;
+            var noExtension = ts.removeFileExtension(fileName);
+            switch (ending) {
+                case 0:
+                    return ts.removeSuffix(noExtension, "/index");
+                case 1:
+                    return noExtension;
+                case 2:
+                    return noExtension + getJSExtensionForFile(fileName, options);
+                default:
+                    return ts.Debug.assertNever(ending);
+            }
+        }
+        function getJSExtensionForFile(fileName, options) {
+            var ext = ts.extensionFromPath(fileName);
+            switch (ext) {
+                case ".ts":
+                case ".d.ts":
+                    return ".js";
+                case ".tsx":
+                    return options.jsx === 1 ? ".jsx" : ".js";
+                case ".js":
+                case ".jsx":
+                case ".json":
+                    return ext;
+                case ".tsbuildinfo":
+                    return ts.Debug.fail("Extension " + ".tsbuildinfo" + " is unsupported:: FileName:: " + fileName);
+                default:
+                    return ts.Debug.assertNever(ext);
+            }
+        }
+        function getRelativePathIfInDirectory(path, directoryPath, getCanonicalFileName) {
+            var relativePath = ts.getRelativePathToDirectoryOrUrl(directoryPath, path, directoryPath, getCanonicalFileName, false);
+            return ts.isRootedDiskPath(relativePath) ? undefined : relativePath;
+        }
+        function isPathRelativeToParent(path) {
+            return ts.startsWith(path, "..");
+        }
+    })(moduleSpecifiers = ts.moduleSpecifiers || (ts.moduleSpecifiers = {}));
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var sysFormatDiagnosticsHost = ts.sys ? {
+        getCurrentDirectory: function () { return ts.sys.getCurrentDirectory(); },
+        getNewLine: function () { return ts.sys.newLine; },
+        getCanonicalFileName: ts.createGetCanonicalFileName(ts.sys.useCaseSensitiveFileNames)
+    } : undefined;
+    function createDiagnosticReporter(system, pretty) {
+        var host = system === ts.sys ? sysFormatDiagnosticsHost : {
+            getCurrentDirectory: function () { return system.getCurrentDirectory(); },
+            getNewLine: function () { return system.newLine; },
+            getCanonicalFileName: ts.createGetCanonicalFileName(system.useCaseSensitiveFileNames),
+        };
+        if (!pretty) {
+            return function (diagnostic) { return system.write(ts.formatDiagnostic(diagnostic, host)); };
+        }
+        var diagnostics = new Array(1);
+        return function (diagnostic) {
+            diagnostics[0] = diagnostic;
+            system.write(ts.formatDiagnosticsWithColorAndContext(diagnostics, host) + host.getNewLine());
+            diagnostics[0] = undefined;
+        };
+    }
+    ts.createDiagnosticReporter = createDiagnosticReporter;
+    function clearScreenIfNotWatchingForFileChanges(system, diagnostic, options) {
+        if (system.clearScreen &&
+            !options.preserveWatchOutput &&
+            !options.extendedDiagnostics &&
+            !options.diagnostics &&
+            ts.contains(ts.screenStartingMessageCodes, diagnostic.code)) {
+            system.clearScreen();
+            return true;
+        }
+        return false;
+    }
+    ts.screenStartingMessageCodes = [
+        ts.Diagnostics.Starting_compilation_in_watch_mode.code,
+        ts.Diagnostics.File_change_detected_Starting_incremental_compilation.code,
+    ];
+    function getPlainDiagnosticFollowingNewLines(diagnostic, newLine) {
+        return ts.contains(ts.screenStartingMessageCodes, diagnostic.code)
+            ? newLine + newLine
+            : newLine;
+    }
+    function getLocaleTimeString(system) {
+        return !system.now ?
+            new Date().toLocaleTimeString() :
+            system.now().toLocaleTimeString("en-US", { timeZone: "UTC" });
+    }
+    ts.getLocaleTimeString = getLocaleTimeString;
+    function createWatchStatusReporter(system, pretty) {
+        return pretty ?
+            function (diagnostic, newLine, options) {
+                clearScreenIfNotWatchingForFileChanges(system, diagnostic, options);
+                var output = "[" + ts.formatColorAndReset(getLocaleTimeString(system), ts.ForegroundColorEscapeSequences.Grey) + "] ";
+                output += "" + ts.flattenDiagnosticMessageText(diagnostic.messageText, system.newLine) + (newLine + newLine);
+                system.write(output);
+            } :
+            function (diagnostic, newLine, options) {
+                var output = "";
+                if (!clearScreenIfNotWatchingForFileChanges(system, diagnostic, options)) {
+                    output += newLine;
+                }
+                output += getLocaleTimeString(system) + " - ";
+                output += "" + ts.flattenDiagnosticMessageText(diagnostic.messageText, system.newLine) + getPlainDiagnosticFollowingNewLines(diagnostic, newLine);
+                system.write(output);
+            };
+    }
+    ts.createWatchStatusReporter = createWatchStatusReporter;
+    function parseConfigFileWithSystem(configFileName, optionsToExtend, watchOptionsToExtend, system, reportDiagnostic) {
+        var host = system;
+        host.onUnRecoverableConfigFileDiagnostic = function (diagnostic) { return reportUnrecoverableDiagnostic(system, reportDiagnostic, diagnostic); };
+        var result = ts.getParsedCommandLineOfConfigFile(configFileName, optionsToExtend, host, undefined, watchOptionsToExtend);
+        host.onUnRecoverableConfigFileDiagnostic = undefined;
+        return result;
+    }
+    ts.parseConfigFileWithSystem = parseConfigFileWithSystem;
+    function getErrorCountForSummary(diagnostics) {
+        return ts.countWhere(diagnostics, function (diagnostic) { return diagnostic.category === ts.DiagnosticCategory.Error; });
+    }
+    ts.getErrorCountForSummary = getErrorCountForSummary;
+    function getWatchErrorSummaryDiagnosticMessage(errorCount) {
+        return errorCount === 1 ?
+            ts.Diagnostics.Found_1_error_Watching_for_file_changes :
+            ts.Diagnostics.Found_0_errors_Watching_for_file_changes;
+    }
+    ts.getWatchErrorSummaryDiagnosticMessage = getWatchErrorSummaryDiagnosticMessage;
+    function getErrorSummaryText(errorCount, newLine) {
+        if (errorCount === 0)
+            return "";
+        var d = ts.createCompilerDiagnostic(errorCount === 1 ? ts.Diagnostics.Found_1_error : ts.Diagnostics.Found_0_errors, errorCount);
+        return "" + newLine + ts.flattenDiagnosticMessageText(d.messageText, newLine) + newLine + newLine;
+    }
+    ts.getErrorSummaryText = getErrorSummaryText;
+    function listFiles(program, writeFileName) {
+        if (program.getCompilerOptions().listFiles || program.getCompilerOptions().listFilesOnly) {
+            ts.forEach(program.getSourceFiles(), function (file) {
+                writeFileName(file.fileName);
+            });
+        }
+    }
+    ts.listFiles = listFiles;
+    function emitFilesAndReportErrors(program, reportDiagnostic, writeFileName, reportSummary, writeFile, cancellationToken, emitOnlyDtsFiles, customTransformers) {
+        var isListFilesOnly = !!program.getCompilerOptions().listFilesOnly;
+        var allDiagnostics = program.getConfigFileParsingDiagnostics().slice();
+        var configFileParsingDiagnosticsLength = allDiagnostics.length;
+        ts.addRange(allDiagnostics, program.getSyntacticDiagnostics(undefined, cancellationToken));
+        if (allDiagnostics.length === configFileParsingDiagnosticsLength) {
+            ts.addRange(allDiagnostics, program.getOptionsDiagnostics(cancellationToken));
+            if (!isListFilesOnly) {
+                ts.addRange(allDiagnostics, program.getGlobalDiagnostics(cancellationToken));
+                if (allDiagnostics.length === configFileParsingDiagnosticsLength) {
+                    ts.addRange(allDiagnostics, program.getSemanticDiagnostics(undefined, cancellationToken));
+                }
+            }
+        }
+        var emitResult = isListFilesOnly
+            ? { emitSkipped: true, diagnostics: ts.emptyArray }
+            : program.emit(undefined, writeFile, cancellationToken, emitOnlyDtsFiles, customTransformers);
+        var emittedFiles = emitResult.emittedFiles, emitDiagnostics = emitResult.diagnostics;
+        ts.addRange(allDiagnostics, emitDiagnostics);
+        var diagnostics = ts.sortAndDeduplicateDiagnostics(allDiagnostics);
+        diagnostics.forEach(reportDiagnostic);
+        if (writeFileName) {
+            var currentDir_1 = program.getCurrentDirectory();
+            ts.forEach(emittedFiles, function (file) {
+                var filepath = ts.getNormalizedAbsolutePath(file, currentDir_1);
+                writeFileName("TSFILE: " + filepath);
+            });
+            listFiles(program, writeFileName);
+        }
+        if (reportSummary) {
+            reportSummary(getErrorCountForSummary(diagnostics));
+        }
+        return {
+            emitResult: emitResult,
+            diagnostics: diagnostics,
+        };
+    }
+    ts.emitFilesAndReportErrors = emitFilesAndReportErrors;
+    function emitFilesAndReportErrorsAndGetExitStatus(program, reportDiagnostic, writeFileName, reportSummary, writeFile, cancellationToken, emitOnlyDtsFiles, customTransformers) {
+        var _a = emitFilesAndReportErrors(program, reportDiagnostic, writeFileName, reportSummary, writeFile, cancellationToken, emitOnlyDtsFiles, customTransformers), emitResult = _a.emitResult, diagnostics = _a.diagnostics;
+        if (emitResult.emitSkipped && diagnostics.length > 0) {
+            return ts.ExitStatus.DiagnosticsPresent_OutputsSkipped;
+        }
+        else if (diagnostics.length > 0) {
+            return ts.ExitStatus.DiagnosticsPresent_OutputsGenerated;
+        }
+        return ts.ExitStatus.Success;
+    }
+    ts.emitFilesAndReportErrorsAndGetExitStatus = emitFilesAndReportErrorsAndGetExitStatus;
+    ts.noopFileWatcher = { close: ts.noop };
+    function createWatchHost(system, reportWatchStatus) {
+        if (system === void 0) { system = ts.sys; }
+        var onWatchStatusChange = reportWatchStatus || createWatchStatusReporter(system);
+        return {
+            onWatchStatusChange: onWatchStatusChange,
+            watchFile: ts.maybeBind(system, system.watchFile) || (function () { return ts.noopFileWatcher; }),
+            watchDirectory: ts.maybeBind(system, system.watchDirectory) || (function () { return ts.noopFileWatcher; }),
+            setTimeout: ts.maybeBind(system, system.setTimeout) || ts.noop,
+            clearTimeout: ts.maybeBind(system, system.clearTimeout) || ts.noop
+        };
+    }
+    ts.createWatchHost = createWatchHost;
+    ts.WatchType = {
+        ConfigFile: "Config file",
+        SourceFile: "Source file",
+        MissingFile: "Missing file",
+        WildcardDirectory: "Wild card directory",
+        FailedLookupLocations: "Failed Lookup Locations",
+        TypeRoots: "Type roots"
+    };
+    function createWatchFactory(host, options) {
+        var watchLogLevel = host.trace ? options.extendedDiagnostics ? ts.WatchLogLevel.Verbose : options.diagnostics ? ts.WatchLogLevel.TriggerOnly : ts.WatchLogLevel.None : ts.WatchLogLevel.None;
+        var writeLog = watchLogLevel !== ts.WatchLogLevel.None ? (function (s) { return host.trace(s); }) : ts.noop;
+        var result = ts.getWatchFactory(watchLogLevel, writeLog);
+        result.writeLog = writeLog;
+        return result;
+    }
+    ts.createWatchFactory = createWatchFactory;
+    function createCompilerHostFromProgramHost(host, getCompilerOptions, directoryStructureHost) {
+        if (directoryStructureHost === void 0) { directoryStructureHost = host; }
+        var useCaseSensitiveFileNames = host.useCaseSensitiveFileNames();
+        var hostGetNewLine = ts.memoize(function () { return host.getNewLine(); });
+        return {
+            getSourceFile: function (fileName, languageVersion, onError) {
+                var text;
+                try {
+                    ts.performance.mark("beforeIORead");
+                    text = host.readFile(fileName, getCompilerOptions().charset);
+                    ts.performance.mark("afterIORead");
+                    ts.performance.measure("I/O Read", "beforeIORead", "afterIORead");
+                }
+                catch (e) {
+                    if (onError) {
+                        onError(e.message);
+                    }
+                    text = "";
+                }
+                return text !== undefined ? ts.createSourceFile(fileName, text, languageVersion) : undefined;
+            },
+            getDefaultLibLocation: ts.maybeBind(host, host.getDefaultLibLocation),
+            getDefaultLibFileName: function (options) { return host.getDefaultLibFileName(options); },
+            writeFile: writeFile,
+            getCurrentDirectory: ts.memoize(function () { return host.getCurrentDirectory(); }),
+            useCaseSensitiveFileNames: function () { return useCaseSensitiveFileNames; },
+            getCanonicalFileName: ts.createGetCanonicalFileName(useCaseSensitiveFileNames),
+            getNewLine: function () { return ts.getNewLineCharacter(getCompilerOptions(), hostGetNewLine); },
+            fileExists: function (f) { return host.fileExists(f); },
+            readFile: function (f) { return host.readFile(f); },
+            trace: ts.maybeBind(host, host.trace),
+            directoryExists: ts.maybeBind(directoryStructureHost, directoryStructureHost.directoryExists),
+            getDirectories: ts.maybeBind(directoryStructureHost, directoryStructureHost.getDirectories),
+            realpath: ts.maybeBind(host, host.realpath),
+            getEnvironmentVariable: ts.maybeBind(host, host.getEnvironmentVariable) || (function () { return ""; }),
+            createHash: ts.maybeBind(host, host.createHash),
+            readDirectory: ts.maybeBind(host, host.readDirectory),
+        };
+        function writeFile(fileName, text, writeByteOrderMark, onError) {
+            try {
+                ts.performance.mark("beforeIOWrite");
+                ts.writeFileEnsuringDirectories(fileName, text, writeByteOrderMark, function (path, data, writeByteOrderMark) { return host.writeFile(path, data, writeByteOrderMark); }, function (path) { return host.createDirectory(path); }, function (path) { return host.directoryExists(path); });
+                ts.performance.mark("afterIOWrite");
+                ts.performance.measure("I/O Write", "beforeIOWrite", "afterIOWrite");
+            }
+            catch (e) {
+                if (onError) {
+                    onError(e.message);
+                }
+            }
+        }
+    }
+    ts.createCompilerHostFromProgramHost = createCompilerHostFromProgramHost;
+    function setGetSourceFileAsHashVersioned(compilerHost, host) {
+        var originalGetSourceFile = compilerHost.getSourceFile;
+        var computeHash = host.createHash || ts.generateDjb2Hash;
+        compilerHost.getSourceFile = function () {
+            var args = [];
+            for (var _i = 0; _i < arguments.length; _i++) {
+                args[_i] = arguments[_i];
+            }
+            var result = originalGetSourceFile.call.apply(originalGetSourceFile, __spreadArrays([compilerHost], args));
+            if (result) {
+                result.version = computeHash.call(host, result.text);
+            }
+            return result;
+        };
+    }
+    ts.setGetSourceFileAsHashVersioned = setGetSourceFileAsHashVersioned;
+    function createProgramHost(system, createProgram) {
+        var getDefaultLibLocation = ts.memoize(function () { return ts.getDirectoryPath(ts.normalizePath(system.getExecutingFilePath())); });
+        return {
+            useCaseSensitiveFileNames: function () { return system.useCaseSensitiveFileNames; },
+            getNewLine: function () { return system.newLine; },
+            getCurrentDirectory: ts.memoize(function () { return system.getCurrentDirectory(); }),
+            getDefaultLibLocation: getDefaultLibLocation,
+            getDefaultLibFileName: function (options) { return ts.combinePaths(getDefaultLibLocation(), ts.getDefaultLibFileName(options)); },
+            fileExists: function (path) { return system.fileExists(path); },
+            readFile: function (path, encoding) { return system.readFile(path, encoding); },
+            directoryExists: function (path) { return system.directoryExists(path); },
+            getDirectories: function (path) { return system.getDirectories(path); },
+            readDirectory: function (path, extensions, exclude, include, depth) { return system.readDirectory(path, extensions, exclude, include, depth); },
+            realpath: ts.maybeBind(system, system.realpath),
+            getEnvironmentVariable: ts.maybeBind(system, system.getEnvironmentVariable),
+            trace: function (s) { return system.write(s + system.newLine); },
+            createDirectory: function (path) { return system.createDirectory(path); },
+            writeFile: function (path, data, writeByteOrderMark) { return system.writeFile(path, data, writeByteOrderMark); },
+            createHash: ts.maybeBind(system, system.createHash),
+            createProgram: createProgram || ts.createEmitAndSemanticDiagnosticsBuilderProgram
+        };
+    }
+    ts.createProgramHost = createProgramHost;
+    function createWatchCompilerHost(system, createProgram, reportDiagnostic, reportWatchStatus) {
+        if (system === void 0) { system = ts.sys; }
+        var writeFileName = function (s) { return system.write(s + system.newLine); };
+        var result = createProgramHost(system, createProgram);
+        ts.copyProperties(result, createWatchHost(system, reportWatchStatus));
+        result.afterProgramCreate = function (builderProgram) {
+            var compilerOptions = builderProgram.getCompilerOptions();
+            var newLine = ts.getNewLineCharacter(compilerOptions, function () { return system.newLine; });
+            emitFilesAndReportErrors(builderProgram, reportDiagnostic, writeFileName, function (errorCount) { return result.onWatchStatusChange(ts.createCompilerDiagnostic(getWatchErrorSummaryDiagnosticMessage(errorCount), errorCount), newLine, compilerOptions, errorCount); });
+        };
+        return result;
+    }
+    function reportUnrecoverableDiagnostic(system, reportDiagnostic, diagnostic) {
+        reportDiagnostic(diagnostic);
+        system.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
+    }
+    function createWatchCompilerHostOfConfigFile(_a) {
+        var configFileName = _a.configFileName, optionsToExtend = _a.optionsToExtend, watchOptionsToExtend = _a.watchOptionsToExtend, extraFileExtensions = _a.extraFileExtensions, system = _a.system, createProgram = _a.createProgram, reportDiagnostic = _a.reportDiagnostic, reportWatchStatus = _a.reportWatchStatus;
+        var diagnosticReporter = reportDiagnostic || createDiagnosticReporter(system);
+        var host = createWatchCompilerHost(system, createProgram, diagnosticReporter, reportWatchStatus);
+        host.onUnRecoverableConfigFileDiagnostic = function (diagnostic) { return reportUnrecoverableDiagnostic(system, diagnosticReporter, diagnostic); };
+        host.configFileName = configFileName;
+        host.optionsToExtend = optionsToExtend;
+        host.watchOptionsToExtend = watchOptionsToExtend;
+        host.extraFileExtensions = extraFileExtensions;
+        return host;
+    }
+    ts.createWatchCompilerHostOfConfigFile = createWatchCompilerHostOfConfigFile;
+    function createWatchCompilerHostOfFilesAndCompilerOptions(_a) {
+        var rootFiles = _a.rootFiles, options = _a.options, watchOptions = _a.watchOptions, projectReferences = _a.projectReferences, system = _a.system, createProgram = _a.createProgram, reportDiagnostic = _a.reportDiagnostic, reportWatchStatus = _a.reportWatchStatus;
+        var host = createWatchCompilerHost(system, createProgram, reportDiagnostic || createDiagnosticReporter(system), reportWatchStatus);
+        host.rootFiles = rootFiles;
+        host.options = options;
+        host.watchOptions = watchOptions;
+        host.projectReferences = projectReferences;
+        return host;
+    }
+    ts.createWatchCompilerHostOfFilesAndCompilerOptions = createWatchCompilerHostOfFilesAndCompilerOptions;
+    function performIncrementalCompilation(input) {
+        var system = input.system || ts.sys;
+        var host = input.host || (input.host = ts.createIncrementalCompilerHost(input.options, system));
+        var builderProgram = ts.createIncrementalProgram(input);
+        var exitStatus = emitFilesAndReportErrorsAndGetExitStatus(builderProgram, input.reportDiagnostic || createDiagnosticReporter(system), function (s) { return host.trace && host.trace(s); }, input.reportErrorSummary || input.options.pretty ? function (errorCount) { return system.write(getErrorSummaryText(errorCount, system.newLine)); } : undefined);
+        if (input.afterProgramEmitAndDiagnostics)
+            input.afterProgramEmitAndDiagnostics(builderProgram);
+        return exitStatus;
+    }
+    ts.performIncrementalCompilation = performIncrementalCompilation;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function readBuilderProgram(compilerOptions, host) {
+        if (compilerOptions.out || compilerOptions.outFile)
+            return undefined;
+        var buildInfoPath = ts.getTsBuildInfoEmitOutputFilePath(compilerOptions);
+        if (!buildInfoPath)
+            return undefined;
+        var content = host.readFile(buildInfoPath);
+        if (!content)
+            return undefined;
+        var buildInfo = ts.getBuildInfo(content);
+        if (buildInfo.version !== ts.version)
+            return undefined;
+        if (!buildInfo.program)
+            return undefined;
+        return ts.createBuildProgramUsingProgramBuildInfo(buildInfo.program, buildInfoPath, host);
+    }
+    ts.readBuilderProgram = readBuilderProgram;
+    function createIncrementalCompilerHost(options, system) {
+        if (system === void 0) { system = ts.sys; }
+        var host = ts.createCompilerHostWorker(options, undefined, system);
+        host.createHash = ts.maybeBind(system, system.createHash);
+        ts.setGetSourceFileAsHashVersioned(host, system);
+        ts.changeCompilerHostLikeToUseCache(host, function (fileName) { return ts.toPath(fileName, host.getCurrentDirectory(), host.getCanonicalFileName); });
+        return host;
+    }
+    ts.createIncrementalCompilerHost = createIncrementalCompilerHost;
+    function createIncrementalProgram(_a) {
+        var rootNames = _a.rootNames, options = _a.options, configFileParsingDiagnostics = _a.configFileParsingDiagnostics, projectReferences = _a.projectReferences, host = _a.host, createProgram = _a.createProgram;
+        host = host || createIncrementalCompilerHost(options);
+        createProgram = createProgram || ts.createEmitAndSemanticDiagnosticsBuilderProgram;
+        var oldProgram = readBuilderProgram(options, host);
+        return createProgram(rootNames, options, host, oldProgram, configFileParsingDiagnostics, projectReferences);
+    }
+    ts.createIncrementalProgram = createIncrementalProgram;
+    function createWatchCompilerHost(rootFilesOrConfigFileName, options, system, createProgram, reportDiagnostic, reportWatchStatus, projectReferencesOrWatchOptionsToExtend, watchOptionsOrExtraFileExtensions) {
+        if (ts.isArray(rootFilesOrConfigFileName)) {
+            return ts.createWatchCompilerHostOfFilesAndCompilerOptions({
+                rootFiles: rootFilesOrConfigFileName,
+                options: options,
+                watchOptions: watchOptionsOrExtraFileExtensions,
+                projectReferences: projectReferencesOrWatchOptionsToExtend,
+                system: system,
+                createProgram: createProgram,
+                reportDiagnostic: reportDiagnostic,
+                reportWatchStatus: reportWatchStatus,
+            });
+        }
+        else {
+            return ts.createWatchCompilerHostOfConfigFile({
+                configFileName: rootFilesOrConfigFileName,
+                optionsToExtend: options,
+                watchOptionsToExtend: projectReferencesOrWatchOptionsToExtend,
+                extraFileExtensions: watchOptionsOrExtraFileExtensions,
+                system: system,
+                createProgram: createProgram,
+                reportDiagnostic: reportDiagnostic,
+                reportWatchStatus: reportWatchStatus,
+            });
+        }
+    }
+    ts.createWatchCompilerHost = createWatchCompilerHost;
+    function createWatchProgram(host) {
+        var builderProgram;
+        var reloadLevel;
+        var missingFilesMap;
+        var watchedWildcardDirectories;
+        var timerToUpdateProgram;
+        var sourceFilesCache = ts.createMap();
+        var missingFilePathsRequestedForRelease;
+        var hasChangedCompilerOptions = false;
+        var hasChangedAutomaticTypeDirectiveNames = false;
+        var useCaseSensitiveFileNames = host.useCaseSensitiveFileNames();
+        var currentDirectory = host.getCurrentDirectory();
+        var configFileName = host.configFileName, _a = host.optionsToExtend, optionsToExtendForConfigFile = _a === void 0 ? {} : _a, watchOptionsToExtend = host.watchOptionsToExtend, extraFileExtensions = host.extraFileExtensions, createProgram = host.createProgram;
+        var rootFileNames = host.rootFiles, compilerOptions = host.options, watchOptions = host.watchOptions, projectReferences = host.projectReferences;
+        var configFileSpecs;
+        var configFileParsingDiagnostics;
+        var canConfigFileJsonReportNoInputFiles = false;
+        var hasChangedConfigFileParsingErrors = false;
+        var cachedDirectoryStructureHost = configFileName === undefined ? undefined : ts.createCachedDirectoryStructureHost(host, currentDirectory, useCaseSensitiveFileNames);
+        var directoryStructureHost = cachedDirectoryStructureHost || host;
+        var parseConfigFileHost = ts.parseConfigHostFromCompilerHostLike(host, directoryStructureHost);
+        var newLine = updateNewLine();
+        if (configFileName && host.configFileParsingResult) {
+            setConfigFileParsingResult(host.configFileParsingResult);
+            newLine = updateNewLine();
+        }
+        reportWatchDiagnostic(ts.Diagnostics.Starting_compilation_in_watch_mode);
+        if (configFileName && !host.configFileParsingResult) {
+            newLine = ts.getNewLineCharacter(optionsToExtendForConfigFile, function () { return host.getNewLine(); });
+            ts.Debug.assert(!rootFileNames);
+            parseConfigFile();
+            newLine = updateNewLine();
+        }
+        var _b = ts.createWatchFactory(host, compilerOptions), watchFile = _b.watchFile, watchFilePath = _b.watchFilePath, watchDirectory = _b.watchDirectory, writeLog = _b.writeLog;
+        var getCanonicalFileName = ts.createGetCanonicalFileName(useCaseSensitiveFileNames);
+        writeLog("Current directory: " + currentDirectory + " CaseSensitiveFileNames: " + useCaseSensitiveFileNames);
+        var configFileWatcher;
+        if (configFileName) {
+            configFileWatcher = watchFile(host, configFileName, scheduleProgramReload, ts.PollingInterval.High, watchOptions, ts.WatchType.ConfigFile);
+        }
+        var compilerHost = ts.createCompilerHostFromProgramHost(host, function () { return compilerOptions; }, directoryStructureHost);
+        ts.setGetSourceFileAsHashVersioned(compilerHost, host);
+        var getNewSourceFile = compilerHost.getSourceFile;
+        compilerHost.getSourceFile = function (fileName) {
+            var args = [];
+            for (var _i = 1; _i < arguments.length; _i++) {
+                args[_i - 1] = arguments[_i];
+            }
+            return getVersionedSourceFileByPath.apply(void 0, __spreadArrays([fileName, toPath(fileName)], args));
+        };
+        compilerHost.getSourceFileByPath = getVersionedSourceFileByPath;
+        compilerHost.getNewLine = function () { return newLine; };
+        compilerHost.fileExists = fileExists;
+        compilerHost.onReleaseOldSourceFile = onReleaseOldSourceFile;
+        compilerHost.toPath = toPath;
+        compilerHost.getCompilationSettings = function () { return compilerOptions; };
+        compilerHost.useSourceOfProjectReferenceRedirect = ts.maybeBind(host, host.useSourceOfProjectReferenceRedirect);
+        compilerHost.watchDirectoryOfFailedLookupLocation = function (dir, cb, flags) { return watchDirectory(host, dir, cb, flags, watchOptions, ts.WatchType.FailedLookupLocations); };
+        compilerHost.watchTypeRootsDirectory = function (dir, cb, flags) { return watchDirectory(host, dir, cb, flags, watchOptions, ts.WatchType.TypeRoots); };
+        compilerHost.getCachedDirectoryStructureHost = function () { return cachedDirectoryStructureHost; };
+        compilerHost.onInvalidatedResolution = scheduleProgramUpdate;
+        compilerHost.onChangedAutomaticTypeDirectiveNames = function () {
+            hasChangedAutomaticTypeDirectiveNames = true;
+            scheduleProgramUpdate();
+        };
+        compilerHost.fileIsOpen = ts.returnFalse;
+        compilerHost.getCurrentProgram = getCurrentProgram;
+        compilerHost.writeLog = writeLog;
+        var resolutionCache = ts.createResolutionCache(compilerHost, configFileName ?
+            ts.getDirectoryPath(ts.getNormalizedAbsolutePath(configFileName, currentDirectory)) :
+            currentDirectory, false);
+        compilerHost.resolveModuleNames = host.resolveModuleNames ?
+            (function () {
+                var args = [];
+                for (var _i = 0; _i < arguments.length; _i++) {
+                    args[_i] = arguments[_i];
+                }
+                return host.resolveModuleNames.apply(host, args);
+            }) :
+            (function (moduleNames, containingFile, reusedNames, redirectedReference) { return resolutionCache.resolveModuleNames(moduleNames, containingFile, reusedNames, redirectedReference); });
+        compilerHost.resolveTypeReferenceDirectives = host.resolveTypeReferenceDirectives ?
+            (function () {
+                var args = [];
+                for (var _i = 0; _i < arguments.length; _i++) {
+                    args[_i] = arguments[_i];
+                }
+                return host.resolveTypeReferenceDirectives.apply(host, args);
+            }) :
+            (function (typeDirectiveNames, containingFile, redirectedReference) { return resolutionCache.resolveTypeReferenceDirectives(typeDirectiveNames, containingFile, redirectedReference); });
+        var userProvidedResolution = !!host.resolveModuleNames || !!host.resolveTypeReferenceDirectives;
+        builderProgram = readBuilderProgram(compilerOptions, compilerHost);
+        synchronizeProgram();
+        watchConfigFileWildCardDirectories();
+        return configFileName ?
+            { getCurrentProgram: getCurrentBuilderProgram, getProgram: updateProgram, close: close } :
+            { getCurrentProgram: getCurrentBuilderProgram, getProgram: updateProgram, updateRootFileNames: updateRootFileNames, close: close };
+        function close() {
+            resolutionCache.clear();
+            ts.clearMap(sourceFilesCache, function (value) {
+                if (value && value.fileWatcher) {
+                    value.fileWatcher.close();
+                    value.fileWatcher = undefined;
+                }
+            });
+            if (configFileWatcher) {
+                configFileWatcher.close();
+                configFileWatcher = undefined;
+            }
+            if (watchedWildcardDirectories) {
+                ts.clearMap(watchedWildcardDirectories, ts.closeFileWatcherOf);
+                watchedWildcardDirectories = undefined;
+            }
+            if (missingFilesMap) {
+                ts.clearMap(missingFilesMap, ts.closeFileWatcher);
+                missingFilesMap = undefined;
+            }
+        }
+        function getCurrentBuilderProgram() {
+            return builderProgram;
+        }
+        function getCurrentProgram() {
+            return builderProgram && builderProgram.getProgramOrUndefined();
+        }
+        function synchronizeProgram() {
+            writeLog("Synchronizing program");
+            var program = getCurrentBuilderProgram();
+            if (hasChangedCompilerOptions) {
+                newLine = updateNewLine();
+                if (program && ts.changesAffectModuleResolution(program.getCompilerOptions(), compilerOptions)) {
+                    resolutionCache.clear();
+                }
+            }
+            var hasInvalidatedResolution = resolutionCache.createHasInvalidatedResolution(userProvidedResolution);
+            if (ts.isProgramUptoDate(getCurrentProgram(), rootFileNames, compilerOptions, getSourceVersion, fileExists, hasInvalidatedResolution, hasChangedAutomaticTypeDirectiveNames, projectReferences)) {
+                if (hasChangedConfigFileParsingErrors) {
+                    builderProgram = createProgram(undefined, undefined, compilerHost, builderProgram, configFileParsingDiagnostics, projectReferences);
+                    hasChangedConfigFileParsingErrors = false;
+                }
+            }
+            else {
+                createNewProgram(hasInvalidatedResolution);
+            }
+            if (host.afterProgramCreate && program !== builderProgram) {
+                host.afterProgramCreate(builderProgram);
+            }
+            return builderProgram;
+        }
+        function createNewProgram(hasInvalidatedResolution) {
+            writeLog("CreatingProgramWith::");
+            writeLog("  roots: " + JSON.stringify(rootFileNames));
+            writeLog("  options: " + JSON.stringify(compilerOptions));
+            var needsUpdateInTypeRootWatch = hasChangedCompilerOptions || !getCurrentProgram();
+            hasChangedCompilerOptions = false;
+            hasChangedConfigFileParsingErrors = false;
+            resolutionCache.startCachingPerDirectoryResolution();
+            compilerHost.hasInvalidatedResolution = hasInvalidatedResolution;
+            compilerHost.hasChangedAutomaticTypeDirectiveNames = hasChangedAutomaticTypeDirectiveNames;
+            hasChangedAutomaticTypeDirectiveNames = false;
+            builderProgram = createProgram(rootFileNames, compilerOptions, compilerHost, builderProgram, configFileParsingDiagnostics, projectReferences);
+            resolutionCache.finishCachingPerDirectoryResolution();
+            ts.updateMissingFilePathsWatch(builderProgram.getProgram(), missingFilesMap || (missingFilesMap = ts.createMap()), watchMissingFilePath);
+            if (needsUpdateInTypeRootWatch) {
+                resolutionCache.updateTypeRootsWatch();
+            }
+            if (missingFilePathsRequestedForRelease) {
+                for (var _i = 0, missingFilePathsRequestedForRelease_1 = missingFilePathsRequestedForRelease; _i < missingFilePathsRequestedForRelease_1.length; _i++) {
+                    var missingFilePath = missingFilePathsRequestedForRelease_1[_i];
+                    if (!missingFilesMap.has(missingFilePath)) {
+                        sourceFilesCache.delete(missingFilePath);
+                    }
+                }
+                missingFilePathsRequestedForRelease = undefined;
+            }
+        }
+        function updateRootFileNames(files) {
+            ts.Debug.assert(!configFileName, "Cannot update root file names with config file watch mode");
+            rootFileNames = files;
+            scheduleProgramUpdate();
+        }
+        function updateNewLine() {
+            return ts.getNewLineCharacter(compilerOptions || optionsToExtendForConfigFile, function () { return host.getNewLine(); });
+        }
+        function toPath(fileName) {
+            return ts.toPath(fileName, currentDirectory, getCanonicalFileName);
+        }
+        function isFileMissingOnHost(hostSourceFile) {
+            return typeof hostSourceFile === "boolean";
+        }
+        function isFilePresenceUnknownOnHost(hostSourceFile) {
+            return typeof hostSourceFile.version === "boolean";
+        }
+        function fileExists(fileName) {
+            var path = toPath(fileName);
+            if (isFileMissingOnHost(sourceFilesCache.get(path))) {
+                return false;
+            }
+            return directoryStructureHost.fileExists(fileName);
+        }
+        function getVersionedSourceFileByPath(fileName, path, languageVersion, onError, shouldCreateNewSourceFile) {
+            var hostSourceFile = sourceFilesCache.get(path);
+            if (isFileMissingOnHost(hostSourceFile)) {
+                return undefined;
+            }
+            if (hostSourceFile === undefined || shouldCreateNewSourceFile || isFilePresenceUnknownOnHost(hostSourceFile)) {
+                var sourceFile = getNewSourceFile(fileName, languageVersion, onError);
+                if (hostSourceFile) {
+                    if (sourceFile) {
+                        hostSourceFile.sourceFile = sourceFile;
+                        hostSourceFile.version = sourceFile.version;
+                        if (!hostSourceFile.fileWatcher) {
+                            hostSourceFile.fileWatcher = watchFilePath(host, fileName, onSourceFileChange, ts.PollingInterval.Low, watchOptions, path, ts.WatchType.SourceFile);
+                        }
+                    }
+                    else {
+                        if (hostSourceFile.fileWatcher) {
+                            hostSourceFile.fileWatcher.close();
+                        }
+                        sourceFilesCache.set(path, false);
+                    }
+                }
+                else {
+                    if (sourceFile) {
+                        var fileWatcher = watchFilePath(host, fileName, onSourceFileChange, ts.PollingInterval.Low, watchOptions, path, ts.WatchType.SourceFile);
+                        sourceFilesCache.set(path, { sourceFile: sourceFile, version: sourceFile.version, fileWatcher: fileWatcher });
+                    }
+                    else {
+                        sourceFilesCache.set(path, false);
+                    }
+                }
+                return sourceFile;
+            }
+            return hostSourceFile.sourceFile;
+        }
+        function nextSourceFileVersion(path) {
+            var hostSourceFile = sourceFilesCache.get(path);
+            if (hostSourceFile !== undefined) {
+                if (isFileMissingOnHost(hostSourceFile)) {
+                    sourceFilesCache.set(path, { version: false });
+                }
+                else {
+                    hostSourceFile.version = false;
+                }
+            }
+        }
+        function getSourceVersion(path) {
+            var hostSourceFile = sourceFilesCache.get(path);
+            return !hostSourceFile || !hostSourceFile.version ? undefined : hostSourceFile.version;
+        }
+        function onReleaseOldSourceFile(oldSourceFile, _oldOptions, hasSourceFileByPath) {
+            var hostSourceFileInfo = sourceFilesCache.get(oldSourceFile.resolvedPath);
+            if (hostSourceFileInfo !== undefined) {
+                if (isFileMissingOnHost(hostSourceFileInfo)) {
+                    (missingFilePathsRequestedForRelease || (missingFilePathsRequestedForRelease = [])).push(oldSourceFile.path);
+                }
+                else if (hostSourceFileInfo.sourceFile === oldSourceFile) {
+                    if (hostSourceFileInfo.fileWatcher) {
+                        hostSourceFileInfo.fileWatcher.close();
+                    }
+                    sourceFilesCache.delete(oldSourceFile.resolvedPath);
+                    if (!hasSourceFileByPath) {
+                        resolutionCache.removeResolutionsOfFile(oldSourceFile.path);
+                    }
+                }
+            }
+        }
+        function reportWatchDiagnostic(message) {
+            if (host.onWatchStatusChange) {
+                host.onWatchStatusChange(ts.createCompilerDiagnostic(message), newLine, compilerOptions || optionsToExtendForConfigFile);
+            }
+        }
+        function scheduleProgramUpdate() {
+            if (!host.setTimeout || !host.clearTimeout) {
+                return;
+            }
+            if (timerToUpdateProgram) {
+                host.clearTimeout(timerToUpdateProgram);
+            }
+            writeLog("Scheduling update");
+            timerToUpdateProgram = host.setTimeout(updateProgramWithWatchStatus, 250);
+        }
+        function scheduleProgramReload() {
+            ts.Debug.assert(!!configFileName);
+            reloadLevel = ts.ConfigFileProgramReloadLevel.Full;
+            scheduleProgramUpdate();
+        }
+        function updateProgramWithWatchStatus() {
+            timerToUpdateProgram = undefined;
+            reportWatchDiagnostic(ts.Diagnostics.File_change_detected_Starting_incremental_compilation);
+            updateProgram();
+        }
+        function updateProgram() {
+            switch (reloadLevel) {
+                case ts.ConfigFileProgramReloadLevel.Partial:
+                    ts.perfLogger.logStartUpdateProgram("PartialConfigReload");
+                    reloadFileNamesFromConfigFile();
+                    break;
+                case ts.ConfigFileProgramReloadLevel.Full:
+                    ts.perfLogger.logStartUpdateProgram("FullConfigReload");
+                    reloadConfigFile();
+                    break;
+                default:
+                    ts.perfLogger.logStartUpdateProgram("SynchronizeProgram");
+                    synchronizeProgram();
+                    break;
+            }
+            ts.perfLogger.logStopUpdateProgram("Done");
+            return getCurrentBuilderProgram();
+        }
+        function reloadFileNamesFromConfigFile() {
+            writeLog("Reloading new file names and options");
+            var result = ts.getFileNamesFromConfigSpecs(configFileSpecs, ts.getNormalizedAbsolutePath(ts.getDirectoryPath(configFileName), currentDirectory), compilerOptions, parseConfigFileHost);
+            if (ts.updateErrorForNoInputFiles(result, ts.getNormalizedAbsolutePath(configFileName, currentDirectory), configFileSpecs, configFileParsingDiagnostics, canConfigFileJsonReportNoInputFiles)) {
+                hasChangedConfigFileParsingErrors = true;
+            }
+            rootFileNames = result.fileNames;
+            synchronizeProgram();
+        }
+        function reloadConfigFile() {
+            writeLog("Reloading config file: " + configFileName);
+            reloadLevel = ts.ConfigFileProgramReloadLevel.None;
+            if (cachedDirectoryStructureHost) {
+                cachedDirectoryStructureHost.clearCache();
+            }
+            parseConfigFile();
+            hasChangedCompilerOptions = true;
+            synchronizeProgram();
+            watchConfigFileWildCardDirectories();
+        }
+        function parseConfigFile() {
+            setConfigFileParsingResult(ts.getParsedCommandLineOfConfigFile(configFileName, optionsToExtendForConfigFile, parseConfigFileHost, undefined, watchOptionsToExtend, extraFileExtensions));
+        }
+        function setConfigFileParsingResult(configFileParseResult) {
+            rootFileNames = configFileParseResult.fileNames;
+            compilerOptions = configFileParseResult.options;
+            watchOptions = configFileParseResult.watchOptions;
+            configFileSpecs = configFileParseResult.configFileSpecs;
+            projectReferences = configFileParseResult.projectReferences;
+            configFileParsingDiagnostics = ts.getConfigFileParsingDiagnostics(configFileParseResult).slice();
+            canConfigFileJsonReportNoInputFiles = ts.canJsonReportNoInutFiles(configFileParseResult.raw);
+            hasChangedConfigFileParsingErrors = true;
+        }
+        function onSourceFileChange(fileName, eventKind, path) {
+            updateCachedSystemWithFile(fileName, path, eventKind);
+            if (eventKind === ts.FileWatcherEventKind.Deleted && sourceFilesCache.has(path)) {
+                resolutionCache.invalidateResolutionOfFile(path);
+            }
+            resolutionCache.removeResolutionsFromProjectReferenceRedirects(path);
+            nextSourceFileVersion(path);
+            scheduleProgramUpdate();
+        }
+        function updateCachedSystemWithFile(fileName, path, eventKind) {
+            if (cachedDirectoryStructureHost) {
+                cachedDirectoryStructureHost.addOrDeleteFile(fileName, path, eventKind);
+            }
+        }
+        function watchMissingFilePath(missingFilePath) {
+            return watchFilePath(host, missingFilePath, onMissingFileChange, ts.PollingInterval.Medium, watchOptions, missingFilePath, ts.WatchType.MissingFile);
+        }
+        function onMissingFileChange(fileName, eventKind, missingFilePath) {
+            updateCachedSystemWithFile(fileName, missingFilePath, eventKind);
+            if (eventKind === ts.FileWatcherEventKind.Created && missingFilesMap.has(missingFilePath)) {
+                missingFilesMap.get(missingFilePath).close();
+                missingFilesMap.delete(missingFilePath);
+                nextSourceFileVersion(missingFilePath);
+                scheduleProgramUpdate();
+            }
+        }
+        function watchConfigFileWildCardDirectories() {
+            if (configFileSpecs) {
+                ts.updateWatchingWildcardDirectories(watchedWildcardDirectories || (watchedWildcardDirectories = ts.createMap()), ts.createMapFromTemplate(configFileSpecs.wildcardDirectories), watchWildcardDirectory);
+            }
+            else if (watchedWildcardDirectories) {
+                ts.clearMap(watchedWildcardDirectories, ts.closeFileWatcherOf);
+            }
+        }
+        function watchWildcardDirectory(directory, flags) {
+            return watchDirectory(host, directory, function (fileOrDirectory) {
+                ts.Debug.assert(!!configFileName);
+                var fileOrDirectoryPath = toPath(fileOrDirectory);
+                if (cachedDirectoryStructureHost) {
+                    cachedDirectoryStructureHost.addOrDeleteFileOrDirectory(fileOrDirectory, fileOrDirectoryPath);
+                }
+                nextSourceFileVersion(fileOrDirectoryPath);
+                fileOrDirectoryPath = ts.removeIgnoredPath(fileOrDirectoryPath);
+                if (!fileOrDirectoryPath)
+                    return;
+                if (fileOrDirectoryPath !== directory && ts.hasExtension(fileOrDirectoryPath) && !ts.isSupportedSourceFileName(fileOrDirectory, compilerOptions)) {
+                    writeLog("Project: " + configFileName + " Detected file add/remove of non supported extension: " + fileOrDirectory);
+                    return;
+                }
+                if (reloadLevel !== ts.ConfigFileProgramReloadLevel.Full) {
+                    reloadLevel = ts.ConfigFileProgramReloadLevel.Partial;
+                    scheduleProgramUpdate();
+                }
+            }, flags, watchOptions, ts.WatchType.WildcardDirectory);
+        }
+    }
+    ts.createWatchProgram = createWatchProgram;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var UpToDateStatusType;
+    (function (UpToDateStatusType) {
+        UpToDateStatusType[UpToDateStatusType["Unbuildable"] = 0] = "Unbuildable";
+        UpToDateStatusType[UpToDateStatusType["UpToDate"] = 1] = "UpToDate";
+        UpToDateStatusType[UpToDateStatusType["UpToDateWithUpstreamTypes"] = 2] = "UpToDateWithUpstreamTypes";
+        UpToDateStatusType[UpToDateStatusType["OutOfDateWithPrepend"] = 3] = "OutOfDateWithPrepend";
+        UpToDateStatusType[UpToDateStatusType["OutputMissing"] = 4] = "OutputMissing";
+        UpToDateStatusType[UpToDateStatusType["OutOfDateWithSelf"] = 5] = "OutOfDateWithSelf";
+        UpToDateStatusType[UpToDateStatusType["OutOfDateWithUpstream"] = 6] = "OutOfDateWithUpstream";
+        UpToDateStatusType[UpToDateStatusType["UpstreamOutOfDate"] = 7] = "UpstreamOutOfDate";
+        UpToDateStatusType[UpToDateStatusType["UpstreamBlocked"] = 8] = "UpstreamBlocked";
+        UpToDateStatusType[UpToDateStatusType["ComputingUpstream"] = 9] = "ComputingUpstream";
+        UpToDateStatusType[UpToDateStatusType["TsVersionOutputOfDate"] = 10] = "TsVersionOutputOfDate";
+        UpToDateStatusType[UpToDateStatusType["ContainerOnly"] = 11] = "ContainerOnly";
+    })(UpToDateStatusType = ts.UpToDateStatusType || (ts.UpToDateStatusType = {}));
+    function resolveConfigFileProjectName(project) {
+        if (ts.fileExtensionIs(project, ".json")) {
+            return project;
+        }
+        return ts.combinePaths(project, "tsconfig.json");
+    }
+    ts.resolveConfigFileProjectName = resolveConfigFileProjectName;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var minimumDate = new Date(-8640000000000000);
+    var maximumDate = new Date(8640000000000000);
+    var BuildResultFlags;
+    (function (BuildResultFlags) {
+        BuildResultFlags[BuildResultFlags["None"] = 0] = "None";
+        BuildResultFlags[BuildResultFlags["Success"] = 1] = "Success";
+        BuildResultFlags[BuildResultFlags["DeclarationOutputUnchanged"] = 2] = "DeclarationOutputUnchanged";
+        BuildResultFlags[BuildResultFlags["ConfigFileErrors"] = 4] = "ConfigFileErrors";
+        BuildResultFlags[BuildResultFlags["SyntaxErrors"] = 8] = "SyntaxErrors";
+        BuildResultFlags[BuildResultFlags["TypeErrors"] = 16] = "TypeErrors";
+        BuildResultFlags[BuildResultFlags["DeclarationEmitErrors"] = 32] = "DeclarationEmitErrors";
+        BuildResultFlags[BuildResultFlags["EmitErrors"] = 64] = "EmitErrors";
+        BuildResultFlags[BuildResultFlags["AnyErrors"] = 124] = "AnyErrors";
+    })(BuildResultFlags || (BuildResultFlags = {}));
+    function createConfigFileMap() {
+        return ts.createMap();
+    }
+    function getOrCreateValueFromConfigFileMap(configFileMap, resolved, createT) {
+        var existingValue = configFileMap.get(resolved);
+        var newValue;
+        if (!existingValue) {
+            newValue = createT();
+            configFileMap.set(resolved, newValue);
+        }
+        return existingValue || newValue;
+    }
+    function getOrCreateValueMapFromConfigFileMap(configFileMap, resolved) {
+        return getOrCreateValueFromConfigFileMap(configFileMap, resolved, ts.createMap);
+    }
+    function newer(date1, date2) {
+        return date2 > date1 ? date2 : date1;
+    }
+    function isDeclarationFile(fileName) {
+        return ts.fileExtensionIs(fileName, ".d.ts");
+    }
+    function isCircularBuildOrder(buildOrder) {
+        return !!buildOrder && !!buildOrder.buildOrder;
+    }
+    ts.isCircularBuildOrder = isCircularBuildOrder;
+    function getBuildOrderFromAnyBuildOrder(anyBuildOrder) {
+        return isCircularBuildOrder(anyBuildOrder) ? anyBuildOrder.buildOrder : anyBuildOrder;
+    }
+    ts.getBuildOrderFromAnyBuildOrder = getBuildOrderFromAnyBuildOrder;
+    function createBuilderStatusReporter(system, pretty) {
+        return function (diagnostic) {
+            var output = pretty ? "[" + ts.formatColorAndReset(ts.getLocaleTimeString(system), ts.ForegroundColorEscapeSequences.Grey) + "] " : ts.getLocaleTimeString(system) + " - ";
+            output += "" + ts.flattenDiagnosticMessageText(diagnostic.messageText, system.newLine) + (system.newLine + system.newLine);
+            system.write(output);
+        };
+    }
+    ts.createBuilderStatusReporter = createBuilderStatusReporter;
+    function createSolutionBuilderHostBase(system, createProgram, reportDiagnostic, reportSolutionBuilderStatus) {
+        var host = ts.createProgramHost(system, createProgram);
+        host.getModifiedTime = system.getModifiedTime ? function (path) { return system.getModifiedTime(path); } : ts.returnUndefined;
+        host.setModifiedTime = system.setModifiedTime ? function (path, date) { return system.setModifiedTime(path, date); } : ts.noop;
+        host.deleteFile = system.deleteFile ? function (path) { return system.deleteFile(path); } : ts.noop;
+        host.reportDiagnostic = reportDiagnostic || ts.createDiagnosticReporter(system);
+        host.reportSolutionBuilderStatus = reportSolutionBuilderStatus || createBuilderStatusReporter(system);
+        host.now = ts.maybeBind(system, system.now);
+        return host;
+    }
+    function createSolutionBuilderHost(system, createProgram, reportDiagnostic, reportSolutionBuilderStatus, reportErrorSummary) {
+        if (system === void 0) { system = ts.sys; }
+        var host = createSolutionBuilderHostBase(system, createProgram, reportDiagnostic, reportSolutionBuilderStatus);
+        host.reportErrorSummary = reportErrorSummary;
+        return host;
+    }
+    ts.createSolutionBuilderHost = createSolutionBuilderHost;
+    function createSolutionBuilderWithWatchHost(system, createProgram, reportDiagnostic, reportSolutionBuilderStatus, reportWatchStatus) {
+        if (system === void 0) { system = ts.sys; }
+        var host = createSolutionBuilderHostBase(system, createProgram, reportDiagnostic, reportSolutionBuilderStatus);
+        var watchHost = ts.createWatchHost(system, reportWatchStatus);
+        ts.copyProperties(host, watchHost);
+        return host;
+    }
+    ts.createSolutionBuilderWithWatchHost = createSolutionBuilderWithWatchHost;
+    function getCompilerOptionsOfBuildOptions(buildOptions) {
+        var result = {};
+        ts.commonOptionsWithBuild.forEach(function (option) {
+            if (ts.hasProperty(buildOptions, option.name))
+                result[option.name] = buildOptions[option.name];
+        });
+        return result;
+    }
+    function createSolutionBuilder(host, rootNames, defaultOptions) {
+        return createSolutionBuilderWorker(false, host, rootNames, defaultOptions);
+    }
+    ts.createSolutionBuilder = createSolutionBuilder;
+    function createSolutionBuilderWithWatch(host, rootNames, defaultOptions, baseWatchOptions) {
+        return createSolutionBuilderWorker(true, host, rootNames, defaultOptions, baseWatchOptions);
+    }
+    ts.createSolutionBuilderWithWatch = createSolutionBuilderWithWatch;
+    function createSolutionBuilderState(watch, hostOrHostWithWatch, rootNames, options, baseWatchOptions) {
+        var host = hostOrHostWithWatch;
+        var hostWithWatch = hostOrHostWithWatch;
+        var currentDirectory = host.getCurrentDirectory();
+        var getCanonicalFileName = ts.createGetCanonicalFileName(host.useCaseSensitiveFileNames());
+        var baseCompilerOptions = getCompilerOptionsOfBuildOptions(options);
+        var compilerHost = ts.createCompilerHostFromProgramHost(host, function () { return state.projectCompilerOptions; });
+        ts.setGetSourceFileAsHashVersioned(compilerHost, host);
+        compilerHost.getParsedCommandLine = function (fileName) { return parseConfigFile(state, fileName, toResolvedConfigFilePath(state, fileName)); };
+        compilerHost.resolveModuleNames = ts.maybeBind(host, host.resolveModuleNames);
+        compilerHost.resolveTypeReferenceDirectives = ts.maybeBind(host, host.resolveTypeReferenceDirectives);
+        var moduleResolutionCache = !compilerHost.resolveModuleNames ? ts.createModuleResolutionCache(currentDirectory, getCanonicalFileName) : undefined;
+        if (!compilerHost.resolveModuleNames) {
+            var loader_3 = function (moduleName, containingFile, redirectedReference) { return ts.resolveModuleName(moduleName, containingFile, state.projectCompilerOptions, compilerHost, moduleResolutionCache, redirectedReference).resolvedModule; };
+            compilerHost.resolveModuleNames = function (moduleNames, containingFile, _reusedNames, redirectedReference) {
+                return ts.loadWithLocalCache(ts.Debug.checkEachDefined(moduleNames), containingFile, redirectedReference, loader_3);
+            };
+        }
+        var _a = ts.createWatchFactory(hostWithWatch, options), watchFile = _a.watchFile, watchFilePath = _a.watchFilePath, watchDirectory = _a.watchDirectory, writeLog = _a.writeLog;
+        var state = {
+            host: host,
+            hostWithWatch: hostWithWatch,
+            currentDirectory: currentDirectory,
+            getCanonicalFileName: getCanonicalFileName,
+            parseConfigFileHost: ts.parseConfigHostFromCompilerHostLike(host),
+            writeFileName: host.trace ? function (s) { return host.trace(s); } : undefined,
+            options: options,
+            baseCompilerOptions: baseCompilerOptions,
+            rootNames: rootNames,
+            baseWatchOptions: baseWatchOptions,
+            resolvedConfigFilePaths: ts.createMap(),
+            configFileCache: createConfigFileMap(),
+            projectStatus: createConfigFileMap(),
+            buildInfoChecked: createConfigFileMap(),
+            extendedConfigCache: ts.createMap(),
+            builderPrograms: createConfigFileMap(),
+            diagnostics: createConfigFileMap(),
+            projectPendingBuild: createConfigFileMap(),
+            projectErrorsReported: createConfigFileMap(),
+            compilerHost: compilerHost,
+            moduleResolutionCache: moduleResolutionCache,
+            buildOrder: undefined,
+            readFileWithCache: function (f) { return host.readFile(f); },
+            projectCompilerOptions: baseCompilerOptions,
+            cache: undefined,
+            allProjectBuildPending: true,
+            needsSummary: true,
+            watchAllProjectsPending: watch,
+            currentInvalidatedProject: undefined,
+            watch: watch,
+            allWatchedWildcardDirectories: createConfigFileMap(),
+            allWatchedInputFiles: createConfigFileMap(),
+            allWatchedConfigFiles: createConfigFileMap(),
+            timerToBuildInvalidatedProject: undefined,
+            reportFileChangeDetected: false,
+            watchFile: watchFile,
+            watchFilePath: watchFilePath,
+            watchDirectory: watchDirectory,
+            writeLog: writeLog,
+        };
+        return state;
+    }
+    function toPath(state, fileName) {
+        return ts.toPath(fileName, state.currentDirectory, state.getCanonicalFileName);
+    }
+    function toResolvedConfigFilePath(state, fileName) {
+        var resolvedConfigFilePaths = state.resolvedConfigFilePaths;
+        var path = resolvedConfigFilePaths.get(fileName);
+        if (path !== undefined)
+            return path;
+        var resolvedPath = toPath(state, fileName);
+        resolvedConfigFilePaths.set(fileName, resolvedPath);
+        return resolvedPath;
+    }
+    function isParsedCommandLine(entry) {
+        return !!entry.options;
+    }
+    function parseConfigFile(state, configFileName, configFilePath) {
+        var configFileCache = state.configFileCache;
+        var value = configFileCache.get(configFilePath);
+        if (value) {
+            return isParsedCommandLine(value) ? value : undefined;
+        }
+        var diagnostic;
+        var parseConfigFileHost = state.parseConfigFileHost, baseCompilerOptions = state.baseCompilerOptions, baseWatchOptions = state.baseWatchOptions, extendedConfigCache = state.extendedConfigCache, host = state.host;
+        var parsed;
+        if (host.getParsedCommandLine) {
+            parsed = host.getParsedCommandLine(configFileName);
+            if (!parsed)
+                diagnostic = ts.createCompilerDiagnostic(ts.Diagnostics.File_0_not_found, configFileName);
+        }
+        else {
+            parseConfigFileHost.onUnRecoverableConfigFileDiagnostic = function (d) { return diagnostic = d; };
+            parsed = ts.getParsedCommandLineOfConfigFile(configFileName, baseCompilerOptions, parseConfigFileHost, extendedConfigCache, baseWatchOptions);
+            parseConfigFileHost.onUnRecoverableConfigFileDiagnostic = ts.noop;
+        }
+        configFileCache.set(configFilePath, parsed || diagnostic);
+        return parsed;
+    }
+    function resolveProjectName(state, name) {
+        return ts.resolveConfigFileProjectName(ts.resolvePath(state.currentDirectory, name));
+    }
+    function createBuildOrder(state, roots) {
+        var temporaryMarks = ts.createMap();
+        var permanentMarks = ts.createMap();
+        var circularityReportStack = [];
+        var buildOrder;
+        var circularDiagnostics;
+        for (var _i = 0, roots_1 = roots; _i < roots_1.length; _i++) {
+            var root = roots_1[_i];
+            visit(root);
+        }
+        return circularDiagnostics ?
+            { buildOrder: buildOrder || ts.emptyArray, circularDiagnostics: circularDiagnostics } :
+            buildOrder || ts.emptyArray;
+        function visit(configFileName, inCircularContext) {
+            var projPath = toResolvedConfigFilePath(state, configFileName);
+            if (permanentMarks.has(projPath))
+                return;
+            if (temporaryMarks.has(projPath)) {
+                if (!inCircularContext) {
+                    (circularDiagnostics || (circularDiagnostics = [])).push(ts.createCompilerDiagnostic(ts.Diagnostics.Project_references_may_not_form_a_circular_graph_Cycle_detected_Colon_0, circularityReportStack.join("\r\n")));
+                }
+                return;
+            }
+            temporaryMarks.set(projPath, true);
+            circularityReportStack.push(configFileName);
+            var parsed = parseConfigFile(state, configFileName, projPath);
+            if (parsed && parsed.projectReferences) {
+                for (var _i = 0, _a = parsed.projectReferences; _i < _a.length; _i++) {
+                    var ref = _a[_i];
+                    var resolvedRefPath = resolveProjectName(state, ref.path);
+                    visit(resolvedRefPath, inCircularContext || ref.circular);
+                }
+            }
+            circularityReportStack.pop();
+            permanentMarks.set(projPath, true);
+            (buildOrder || (buildOrder = [])).push(configFileName);
+        }
+    }
+    function getBuildOrder(state) {
+        return state.buildOrder || createStateBuildOrder(state);
+    }
+    function createStateBuildOrder(state) {
+        var buildOrder = createBuildOrder(state, state.rootNames.map(function (f) { return resolveProjectName(state, f); }));
+        state.resolvedConfigFilePaths.clear();
+        var currentProjects = ts.arrayToSet(getBuildOrderFromAnyBuildOrder(buildOrder), function (resolved) { return toResolvedConfigFilePath(state, resolved); });
+        var noopOnDelete = { onDeleteValue: ts.noop };
+        ts.mutateMapSkippingNewValues(state.configFileCache, currentProjects, noopOnDelete);
+        ts.mutateMapSkippingNewValues(state.projectStatus, currentProjects, noopOnDelete);
+        ts.mutateMapSkippingNewValues(state.buildInfoChecked, currentProjects, noopOnDelete);
+        ts.mutateMapSkippingNewValues(state.builderPrograms, currentProjects, noopOnDelete);
+        ts.mutateMapSkippingNewValues(state.diagnostics, currentProjects, noopOnDelete);
+        ts.mutateMapSkippingNewValues(state.projectPendingBuild, currentProjects, noopOnDelete);
+        ts.mutateMapSkippingNewValues(state.projectErrorsReported, currentProjects, noopOnDelete);
+        if (state.watch) {
+            ts.mutateMapSkippingNewValues(state.allWatchedConfigFiles, currentProjects, { onDeleteValue: ts.closeFileWatcher });
+            ts.mutateMapSkippingNewValues(state.allWatchedWildcardDirectories, currentProjects, { onDeleteValue: function (existingMap) { return existingMap.forEach(ts.closeFileWatcherOf); } });
+            ts.mutateMapSkippingNewValues(state.allWatchedInputFiles, currentProjects, { onDeleteValue: function (existingMap) { return existingMap.forEach(ts.closeFileWatcher); } });
+        }
+        return state.buildOrder = buildOrder;
+    }
+    function getBuildOrderFor(state, project, onlyReferences) {
+        var resolvedProject = project && resolveProjectName(state, project);
+        var buildOrderFromState = getBuildOrder(state);
+        if (isCircularBuildOrder(buildOrderFromState))
+            return buildOrderFromState;
+        if (resolvedProject) {
+            var projectPath_1 = toResolvedConfigFilePath(state, resolvedProject);
+            var projectIndex = ts.findIndex(buildOrderFromState, function (configFileName) { return toResolvedConfigFilePath(state, configFileName) === projectPath_1; });
+            if (projectIndex === -1)
+                return undefined;
+        }
+        var buildOrder = resolvedProject ? createBuildOrder(state, [resolvedProject]) : buildOrderFromState;
+        ts.Debug.assert(!isCircularBuildOrder(buildOrder));
+        ts.Debug.assert(!onlyReferences || resolvedProject !== undefined);
+        ts.Debug.assert(!onlyReferences || buildOrder[buildOrder.length - 1] === resolvedProject);
+        return onlyReferences ? buildOrder.slice(0, buildOrder.length - 1) : buildOrder;
+    }
+    function enableCache(state) {
+        if (state.cache) {
+            disableCache(state);
+        }
+        var compilerHost = state.compilerHost, host = state.host;
+        var originalReadFileWithCache = state.readFileWithCache;
+        var originalGetSourceFile = compilerHost.getSourceFile;
+        var _a = ts.changeCompilerHostLikeToUseCache(host, function (fileName) { return toPath(state, fileName); }, function () {
+            var args = [];
+            for (var _i = 0; _i < arguments.length; _i++) {
+                args[_i] = arguments[_i];
+            }
+            return originalGetSourceFile.call.apply(originalGetSourceFile, __spreadArrays([compilerHost], args));
+        }), originalReadFile = _a.originalReadFile, originalFileExists = _a.originalFileExists, originalDirectoryExists = _a.originalDirectoryExists, originalCreateDirectory = _a.originalCreateDirectory, originalWriteFile = _a.originalWriteFile, getSourceFileWithCache = _a.getSourceFileWithCache, readFileWithCache = _a.readFileWithCache;
+        state.readFileWithCache = readFileWithCache;
+        compilerHost.getSourceFile = getSourceFileWithCache;
+        state.cache = {
+            originalReadFile: originalReadFile,
+            originalFileExists: originalFileExists,
+            originalDirectoryExists: originalDirectoryExists,
+            originalCreateDirectory: originalCreateDirectory,
+            originalWriteFile: originalWriteFile,
+            originalReadFileWithCache: originalReadFileWithCache,
+            originalGetSourceFile: originalGetSourceFile,
+        };
+    }
+    function disableCache(state) {
+        if (!state.cache)
+            return;
+        var cache = state.cache, host = state.host, compilerHost = state.compilerHost, extendedConfigCache = state.extendedConfigCache, moduleResolutionCache = state.moduleResolutionCache;
+        host.readFile = cache.originalReadFile;
+        host.fileExists = cache.originalFileExists;
+        host.directoryExists = cache.originalDirectoryExists;
+        host.createDirectory = cache.originalCreateDirectory;
+        host.writeFile = cache.originalWriteFile;
+        compilerHost.getSourceFile = cache.originalGetSourceFile;
+        state.readFileWithCache = cache.originalReadFileWithCache;
+        extendedConfigCache.clear();
+        if (moduleResolutionCache) {
+            moduleResolutionCache.directoryToModuleNameMap.clear();
+            moduleResolutionCache.moduleNameToDirectoryMap.clear();
+        }
+        state.cache = undefined;
+    }
+    function clearProjectStatus(state, resolved) {
+        state.projectStatus.delete(resolved);
+        state.diagnostics.delete(resolved);
+    }
+    function addProjToQueue(_a, proj, reloadLevel) {
+        var projectPendingBuild = _a.projectPendingBuild;
+        var value = projectPendingBuild.get(proj);
+        if (value === undefined) {
+            projectPendingBuild.set(proj, reloadLevel);
+        }
+        else if (value < reloadLevel) {
+            projectPendingBuild.set(proj, reloadLevel);
+        }
+    }
+    function setupInitialBuild(state, cancellationToken) {
+        if (!state.allProjectBuildPending)
+            return;
+        state.allProjectBuildPending = false;
+        if (state.options.watch) {
+            reportWatchStatus(state, ts.Diagnostics.Starting_compilation_in_watch_mode);
+        }
+        enableCache(state);
+        var buildOrder = getBuildOrderFromAnyBuildOrder(getBuildOrder(state));
+        buildOrder.forEach(function (configFileName) {
+            return state.projectPendingBuild.set(toResolvedConfigFilePath(state, configFileName), ts.ConfigFileProgramReloadLevel.None);
+        });
+        if (cancellationToken) {
+            cancellationToken.throwIfCancellationRequested();
+        }
+    }
+    var InvalidatedProjectKind;
+    (function (InvalidatedProjectKind) {
+        InvalidatedProjectKind[InvalidatedProjectKind["Build"] = 0] = "Build";
+        InvalidatedProjectKind[InvalidatedProjectKind["UpdateBundle"] = 1] = "UpdateBundle";
+        InvalidatedProjectKind[InvalidatedProjectKind["UpdateOutputFileStamps"] = 2] = "UpdateOutputFileStamps";
+    })(InvalidatedProjectKind = ts.InvalidatedProjectKind || (ts.InvalidatedProjectKind = {}));
+    function doneInvalidatedProject(state, projectPath) {
+        state.projectPendingBuild.delete(projectPath);
+        state.currentInvalidatedProject = undefined;
+        return state.diagnostics.has(projectPath) ?
+            ts.ExitStatus.DiagnosticsPresent_OutputsSkipped :
+            ts.ExitStatus.Success;
+    }
+    function createUpdateOutputFileStampsProject(state, project, projectPath, config, buildOrder) {
+        var updateOutputFileStampsPending = true;
+        return {
+            kind: InvalidatedProjectKind.UpdateOutputFileStamps,
+            project: project,
+            projectPath: projectPath,
+            buildOrder: buildOrder,
+            getCompilerOptions: function () { return config.options; },
+            getCurrentDirectory: function () { return state.currentDirectory; },
+            updateOutputFileStatmps: function () {
+                updateOutputTimestamps(state, config, projectPath);
+                updateOutputFileStampsPending = false;
+            },
+            done: function () {
+                if (updateOutputFileStampsPending) {
+                    updateOutputTimestamps(state, config, projectPath);
+                }
+                return doneInvalidatedProject(state, projectPath);
+            }
+        };
+    }
+    function createBuildOrUpdateInvalidedProject(kind, state, project, projectPath, projectIndex, config, buildOrder) {
+        var Step;
+        (function (Step) {
+            Step[Step["CreateProgram"] = 0] = "CreateProgram";
+            Step[Step["SyntaxDiagnostics"] = 1] = "SyntaxDiagnostics";
+            Step[Step["SemanticDiagnostics"] = 2] = "SemanticDiagnostics";
+            Step[Step["Emit"] = 3] = "Emit";
+            Step[Step["EmitBundle"] = 4] = "EmitBundle";
+            Step[Step["BuildInvalidatedProjectOfBundle"] = 5] = "BuildInvalidatedProjectOfBundle";
+            Step[Step["QueueReferencingProjects"] = 6] = "QueueReferencingProjects";
+            Step[Step["Done"] = 7] = "Done";
+        })(Step || (Step = {}));
+        var step = kind === InvalidatedProjectKind.Build ? Step.CreateProgram : Step.EmitBundle;
+        var program;
+        var buildResult;
+        var invalidatedProjectOfBundle;
+        return kind === InvalidatedProjectKind.Build ?
+            {
+                kind: kind,
+                project: project,
+                projectPath: projectPath,
+                buildOrder: buildOrder,
+                getCompilerOptions: function () { return config.options; },
+                getCurrentDirectory: function () { return state.currentDirectory; },
+                getBuilderProgram: function () { return withProgramOrUndefined(ts.identity); },
+                getProgram: function () {
+                    return withProgramOrUndefined(function (program) { return program.getProgramOrUndefined(); });
+                },
+                getSourceFile: function (fileName) {
+                    return withProgramOrUndefined(function (program) { return program.getSourceFile(fileName); });
+                },
+                getSourceFiles: function () {
+                    return withProgramOrEmptyArray(function (program) { return program.getSourceFiles(); });
+                },
+                getOptionsDiagnostics: function (cancellationToken) {
+                    return withProgramOrEmptyArray(function (program) { return program.getOptionsDiagnostics(cancellationToken); });
+                },
+                getGlobalDiagnostics: function (cancellationToken) {
+                    return withProgramOrEmptyArray(function (program) { return program.getGlobalDiagnostics(cancellationToken); });
+                },
+                getConfigFileParsingDiagnostics: function () {
+                    return withProgramOrEmptyArray(function (program) { return program.getConfigFileParsingDiagnostics(); });
+                },
+                getSyntacticDiagnostics: function (sourceFile, cancellationToken) {
+                    return withProgramOrEmptyArray(function (program) { return program.getSyntacticDiagnostics(sourceFile, cancellationToken); });
+                },
+                getAllDependencies: function (sourceFile) {
+                    return withProgramOrEmptyArray(function (program) { return program.getAllDependencies(sourceFile); });
+                },
+                getSemanticDiagnostics: function (sourceFile, cancellationToken) {
+                    return withProgramOrEmptyArray(function (program) { return program.getSemanticDiagnostics(sourceFile, cancellationToken); });
+                },
+                getSemanticDiagnosticsOfNextAffectedFile: function (cancellationToken, ignoreSourceFile) {
+                    return withProgramOrUndefined(function (program) {
+                        return (program.getSemanticDiagnosticsOfNextAffectedFile) &&
+                            program.getSemanticDiagnosticsOfNextAffectedFile(cancellationToken, ignoreSourceFile);
+                    });
+                },
+                emit: function (targetSourceFile, writeFile, cancellationToken, emitOnlyDtsFiles, customTransformers) {
+                    if (targetSourceFile || emitOnlyDtsFiles) {
+                        return withProgramOrUndefined(function (program) { return program.emit(targetSourceFile, writeFile, cancellationToken, emitOnlyDtsFiles, customTransformers); });
+                    }
+                    executeSteps(Step.SemanticDiagnostics, cancellationToken);
+                    if (step !== Step.Emit)
+                        return undefined;
+                    return emit(writeFile, cancellationToken, customTransformers);
+                },
+                done: done
+            } :
+            {
+                kind: kind,
+                project: project,
+                projectPath: projectPath,
+                buildOrder: buildOrder,
+                getCompilerOptions: function () { return config.options; },
+                getCurrentDirectory: function () { return state.currentDirectory; },
+                emit: function (writeFile, customTransformers) {
+                    if (step !== Step.EmitBundle)
+                        return invalidatedProjectOfBundle;
+                    return emitBundle(writeFile, customTransformers);
+                },
+                done: done,
+            };
+        function done(cancellationToken, writeFile, customTransformers) {
+            executeSteps(Step.Done, cancellationToken, writeFile, customTransformers);
+            return doneInvalidatedProject(state, projectPath);
+        }
+        function withProgramOrUndefined(action) {
+            executeSteps(Step.CreateProgram);
+            return program && action(program);
+        }
+        function withProgramOrEmptyArray(action) {
+            return withProgramOrUndefined(action) || ts.emptyArray;
+        }
+        function createProgram() {
+            ts.Debug.assert(program === undefined);
+            if (state.options.dry) {
+                reportStatus(state, ts.Diagnostics.A_non_dry_build_would_build_project_0, project);
+                buildResult = BuildResultFlags.Success;
+                step = Step.QueueReferencingProjects;
+                return;
+            }
+            if (state.options.verbose)
+                reportStatus(state, ts.Diagnostics.Building_project_0, project);
+            if (config.fileNames.length === 0) {
+                reportAndStoreErrors(state, projectPath, ts.getConfigFileParsingDiagnostics(config));
+                buildResult = BuildResultFlags.None;
+                step = Step.QueueReferencingProjects;
+                return;
+            }
+            var host = state.host, compilerHost = state.compilerHost;
+            state.projectCompilerOptions = config.options;
+            updateModuleResolutionCache(state, project, config);
+            program = host.createProgram(config.fileNames, config.options, compilerHost, getOldProgram(state, projectPath, config), ts.getConfigFileParsingDiagnostics(config), config.projectReferences);
+            step++;
+        }
+        function handleDiagnostics(diagnostics, errorFlags, errorType) {
+            if (diagnostics.length) {
+                buildResult = buildErrors(state, projectPath, program, config, diagnostics, errorFlags, errorType);
+                step = Step.QueueReferencingProjects;
+            }
+            else {
+                step++;
+            }
+        }
+        function getSyntaxDiagnostics(cancellationToken) {
+            ts.Debug.assertIsDefined(program);
+            handleDiagnostics(__spreadArrays(program.getConfigFileParsingDiagnostics(), program.getOptionsDiagnostics(cancellationToken), program.getGlobalDiagnostics(cancellationToken), program.getSyntacticDiagnostics(undefined, cancellationToken)), BuildResultFlags.SyntaxErrors, "Syntactic");
+        }
+        function getSemanticDiagnostics(cancellationToken) {
+            handleDiagnostics(ts.Debug.checkDefined(program).getSemanticDiagnostics(undefined, cancellationToken), BuildResultFlags.TypeErrors, "Semantic");
+        }
+        function emit(writeFileCallback, cancellationToken, customTransformers) {
+            ts.Debug.assertIsDefined(program);
+            ts.Debug.assert(step === Step.Emit);
+            program.backupState();
+            var declDiagnostics;
+            var reportDeclarationDiagnostics = function (d) { return (declDiagnostics || (declDiagnostics = [])).push(d); };
+            var outputFiles = [];
+            var emitResult = ts.emitFilesAndReportErrors(program, reportDeclarationDiagnostics, undefined, undefined, function (name, text, writeByteOrderMark) { return outputFiles.push({ name: name, text: text, writeByteOrderMark: writeByteOrderMark }); }, cancellationToken, false, customTransformers).emitResult;
+            if (declDiagnostics) {
+                program.restoreState();
+                buildResult = buildErrors(state, projectPath, program, config, declDiagnostics, BuildResultFlags.DeclarationEmitErrors, "Declaration file");
+                step = Step.QueueReferencingProjects;
+                return {
+                    emitSkipped: true,
+                    diagnostics: emitResult.diagnostics
+                };
+            }
+            var host = state.host, compilerHost = state.compilerHost;
+            var resultFlags = BuildResultFlags.DeclarationOutputUnchanged;
+            var newestDeclarationFileContentChangedTime = minimumDate;
+            var anyDtsChanged = false;
+            var emitterDiagnostics = ts.createDiagnosticCollection();
+            var emittedOutputs = ts.createMap();
+            outputFiles.forEach(function (_a) {
+                var name = _a.name, text = _a.text, writeByteOrderMark = _a.writeByteOrderMark;
+                var priorChangeTime;
+                if (!anyDtsChanged && isDeclarationFile(name)) {
+                    if (host.fileExists(name) && state.readFileWithCache(name) === text) {
+                        priorChangeTime = host.getModifiedTime(name);
+                    }
+                    else {
+                        resultFlags &= ~BuildResultFlags.DeclarationOutputUnchanged;
+                        anyDtsChanged = true;
+                    }
+                }
+                emittedOutputs.set(toPath(state, name), name);
+                ts.writeFile(writeFileCallback ? { writeFile: writeFileCallback } : compilerHost, emitterDiagnostics, name, text, writeByteOrderMark);
+                if (priorChangeTime !== undefined) {
+                    newestDeclarationFileContentChangedTime = newer(priorChangeTime, newestDeclarationFileContentChangedTime);
+                }
+            });
+            finishEmit(emitterDiagnostics, emittedOutputs, newestDeclarationFileContentChangedTime, anyDtsChanged, outputFiles.length ? outputFiles[0].name : ts.getFirstProjectOutput(config, !host.useCaseSensitiveFileNames()), resultFlags);
+            return emitResult;
+        }
+        function finishEmit(emitterDiagnostics, emittedOutputs, priorNewestUpdateTime, newestDeclarationFileContentChangedTimeIsMaximumDate, oldestOutputFileName, resultFlags) {
+            var emitDiagnostics = emitterDiagnostics.getDiagnostics();
+            if (emitDiagnostics.length) {
+                buildResult = buildErrors(state, projectPath, program, config, emitDiagnostics, BuildResultFlags.EmitErrors, "Emit");
+                step = Step.QueueReferencingProjects;
+                return emitDiagnostics;
+            }
+            if (state.writeFileName) {
+                emittedOutputs.forEach(function (name) { return listEmittedFile(state, config, name); });
+                if (program)
+                    ts.listFiles(program, state.writeFileName);
+            }
+            var newestDeclarationFileContentChangedTime = updateOutputTimestampsWorker(state, config, priorNewestUpdateTime, ts.Diagnostics.Updating_unchanged_output_timestamps_of_project_0, emittedOutputs);
+            state.diagnostics.delete(projectPath);
+            state.projectStatus.set(projectPath, {
+                type: ts.UpToDateStatusType.UpToDate,
+                newestDeclarationFileContentChangedTime: newestDeclarationFileContentChangedTimeIsMaximumDate ?
+                    maximumDate :
+                    newestDeclarationFileContentChangedTime,
+                oldestOutputFileName: oldestOutputFileName
+            });
+            afterProgramDone(state, projectPath, program, config);
+            state.projectCompilerOptions = state.baseCompilerOptions;
+            step = Step.QueueReferencingProjects;
+            buildResult = resultFlags;
+            return emitDiagnostics;
+        }
+        function emitBundle(writeFileCallback, customTransformers) {
+            ts.Debug.assert(kind === InvalidatedProjectKind.UpdateBundle);
+            if (state.options.dry) {
+                reportStatus(state, ts.Diagnostics.A_non_dry_build_would_update_output_of_project_0, project);
+                buildResult = BuildResultFlags.Success;
+                step = Step.QueueReferencingProjects;
+                return undefined;
+            }
+            if (state.options.verbose)
+                reportStatus(state, ts.Diagnostics.Updating_output_of_project_0, project);
+            var compilerHost = state.compilerHost;
+            state.projectCompilerOptions = config.options;
+            var outputFiles = ts.emitUsingBuildInfo(config, compilerHost, function (ref) {
+                var refName = resolveProjectName(state, ref.path);
+                return parseConfigFile(state, refName, toResolvedConfigFilePath(state, refName));
+            }, customTransformers);
+            if (ts.isString(outputFiles)) {
+                reportStatus(state, ts.Diagnostics.Cannot_update_output_of_project_0_because_there_was_error_reading_file_1, project, relName(state, outputFiles));
+                step = Step.BuildInvalidatedProjectOfBundle;
+                return invalidatedProjectOfBundle = createBuildOrUpdateInvalidedProject(InvalidatedProjectKind.Build, state, project, projectPath, projectIndex, config, buildOrder);
+            }
+            ts.Debug.assert(!!outputFiles.length);
+            var emitterDiagnostics = ts.createDiagnosticCollection();
+            var emittedOutputs = ts.createMap();
+            outputFiles.forEach(function (_a) {
+                var name = _a.name, text = _a.text, writeByteOrderMark = _a.writeByteOrderMark;
+                emittedOutputs.set(toPath(state, name), name);
+                ts.writeFile(writeFileCallback ? { writeFile: writeFileCallback } : compilerHost, emitterDiagnostics, name, text, writeByteOrderMark);
+            });
+            var emitDiagnostics = finishEmit(emitterDiagnostics, emittedOutputs, minimumDate, false, outputFiles[0].name, BuildResultFlags.DeclarationOutputUnchanged);
+            return { emitSkipped: false, diagnostics: emitDiagnostics };
+        }
+        function executeSteps(till, cancellationToken, writeFile, customTransformers) {
+            while (step <= till && step < Step.Done) {
+                var currentStep = step;
+                switch (step) {
+                    case Step.CreateProgram:
+                        createProgram();
+                        break;
+                    case Step.SyntaxDiagnostics:
+                        getSyntaxDiagnostics(cancellationToken);
+                        break;
+                    case Step.SemanticDiagnostics:
+                        getSemanticDiagnostics(cancellationToken);
+                        break;
+                    case Step.Emit:
+                        emit(writeFile, cancellationToken, customTransformers);
+                        break;
+                    case Step.EmitBundle:
+                        emitBundle(writeFile, customTransformers);
+                        break;
+                    case Step.BuildInvalidatedProjectOfBundle:
+                        ts.Debug.checkDefined(invalidatedProjectOfBundle).done(cancellationToken);
+                        step = Step.Done;
+                        break;
+                    case Step.QueueReferencingProjects:
+                        queueReferencingProjects(state, project, projectPath, projectIndex, config, buildOrder, ts.Debug.checkDefined(buildResult));
+                        step++;
+                        break;
+                    case Step.Done:
+                    default:
+                        ts.assertType(step);
+                }
+                ts.Debug.assert(step > currentStep);
+            }
+        }
+    }
+    function needsBuild(_a, status, config) {
+        var options = _a.options;
+        if (status.type !== ts.UpToDateStatusType.OutOfDateWithPrepend || options.force)
+            return true;
+        return config.fileNames.length === 0 ||
+            !!ts.getConfigFileParsingDiagnostics(config).length ||
+            !ts.isIncrementalCompilation(config.options);
+    }
+    function getNextInvalidatedProject(state, buildOrder, reportQueue) {
+        if (!state.projectPendingBuild.size)
+            return undefined;
+        if (isCircularBuildOrder(buildOrder))
+            return undefined;
+        if (state.currentInvalidatedProject) {
+            return ts.arrayIsEqualTo(state.currentInvalidatedProject.buildOrder, buildOrder) ?
+                state.currentInvalidatedProject :
+                undefined;
+        }
+        var options = state.options, projectPendingBuild = state.projectPendingBuild;
+        for (var projectIndex = 0; projectIndex < buildOrder.length; projectIndex++) {
+            var project = buildOrder[projectIndex];
+            var projectPath = toResolvedConfigFilePath(state, project);
+            var reloadLevel = state.projectPendingBuild.get(projectPath);
+            if (reloadLevel === undefined)
+                continue;
+            if (reportQueue) {
+                reportQueue = false;
+                reportBuildQueue(state, buildOrder);
+            }
+            var config = parseConfigFile(state, project, projectPath);
+            if (!config) {
+                reportParseConfigFileDiagnostic(state, projectPath);
+                projectPendingBuild.delete(projectPath);
+                continue;
+            }
+            if (reloadLevel === ts.ConfigFileProgramReloadLevel.Full) {
+                watchConfigFile(state, project, projectPath, config);
+                watchWildCardDirectories(state, project, projectPath, config);
+                watchInputFiles(state, project, projectPath, config);
+            }
+            else if (reloadLevel === ts.ConfigFileProgramReloadLevel.Partial) {
+                var result = ts.getFileNamesFromConfigSpecs(config.configFileSpecs, ts.getDirectoryPath(project), config.options, state.parseConfigFileHost);
+                ts.updateErrorForNoInputFiles(result, project, config.configFileSpecs, config.errors, ts.canJsonReportNoInutFiles(config.raw));
+                config.fileNames = result.fileNames;
+                watchInputFiles(state, project, projectPath, config);
+            }
+            var status = getUpToDateStatus(state, config, projectPath);
+            verboseReportProjectStatus(state, project, status);
+            if (!options.force) {
+                if (status.type === ts.UpToDateStatusType.UpToDate) {
+                    reportAndStoreErrors(state, projectPath, ts.getConfigFileParsingDiagnostics(config));
+                    projectPendingBuild.delete(projectPath);
+                    if (options.dry) {
+                        reportStatus(state, ts.Diagnostics.Project_0_is_up_to_date, project);
+                    }
+                    continue;
+                }
+                if (status.type === ts.UpToDateStatusType.UpToDateWithUpstreamTypes) {
+                    reportAndStoreErrors(state, projectPath, ts.getConfigFileParsingDiagnostics(config));
+                    return createUpdateOutputFileStampsProject(state, project, projectPath, config, buildOrder);
+                }
+            }
+            if (status.type === ts.UpToDateStatusType.UpstreamBlocked) {
+                reportAndStoreErrors(state, projectPath, ts.getConfigFileParsingDiagnostics(config));
+                projectPendingBuild.delete(projectPath);
+                if (options.verbose) {
+                    reportStatus(state, status.upstreamProjectBlocked ?
+                        ts.Diagnostics.Skipping_build_of_project_0_because_its_dependency_1_was_not_built :
+                        ts.Diagnostics.Skipping_build_of_project_0_because_its_dependency_1_has_errors, project, status.upstreamProjectName);
+                }
+                continue;
+            }
+            if (status.type === ts.UpToDateStatusType.ContainerOnly) {
+                reportAndStoreErrors(state, projectPath, ts.getConfigFileParsingDiagnostics(config));
+                projectPendingBuild.delete(projectPath);
+                continue;
+            }
+            return createBuildOrUpdateInvalidedProject(needsBuild(state, status, config) ?
+                InvalidatedProjectKind.Build :
+                InvalidatedProjectKind.UpdateBundle, state, project, projectPath, projectIndex, config, buildOrder);
+        }
+        return undefined;
+    }
+    function listEmittedFile(_a, proj, file) {
+        var writeFileName = _a.writeFileName;
+        if (writeFileName && proj.options.listEmittedFiles) {
+            writeFileName("TSFILE: " + file);
+        }
+    }
+    function getOldProgram(_a, proj, parsed) {
+        var options = _a.options, builderPrograms = _a.builderPrograms, compilerHost = _a.compilerHost;
+        if (options.force)
+            return undefined;
+        var value = builderPrograms.get(proj);
+        if (value)
+            return value;
+        return ts.readBuilderProgram(parsed.options, compilerHost);
+    }
+    function afterProgramDone(_a, proj, program, config) {
+        var host = _a.host, watch = _a.watch, builderPrograms = _a.builderPrograms;
+        if (program) {
+            if (host.afterProgramEmitAndDiagnostics) {
+                host.afterProgramEmitAndDiagnostics(program);
+            }
+            if (watch) {
+                program.releaseProgram();
+                builderPrograms.set(proj, program);
+            }
+        }
+        else if (host.afterEmitBundle) {
+            host.afterEmitBundle(config);
+        }
+    }
+    function buildErrors(state, resolvedPath, program, config, diagnostics, errorFlags, errorType) {
+        reportAndStoreErrors(state, resolvedPath, diagnostics);
+        if (program && state.writeFileName)
+            ts.listFiles(program, state.writeFileName);
+        state.projectStatus.set(resolvedPath, { type: ts.UpToDateStatusType.Unbuildable, reason: errorType + " errors" });
+        afterProgramDone(state, resolvedPath, program, config);
+        state.projectCompilerOptions = state.baseCompilerOptions;
+        return errorFlags;
+    }
+    function updateModuleResolutionCache(state, proj, config) {
+        if (!state.moduleResolutionCache)
+            return;
+        var moduleResolutionCache = state.moduleResolutionCache;
+        var projPath = toPath(state, proj);
+        if (moduleResolutionCache.directoryToModuleNameMap.redirectsMap.size === 0) {
+            ts.Debug.assert(moduleResolutionCache.moduleNameToDirectoryMap.redirectsMap.size === 0);
+            moduleResolutionCache.directoryToModuleNameMap.redirectsMap.set(projPath, moduleResolutionCache.directoryToModuleNameMap.ownMap);
+            moduleResolutionCache.moduleNameToDirectoryMap.redirectsMap.set(projPath, moduleResolutionCache.moduleNameToDirectoryMap.ownMap);
+        }
+        else {
+            ts.Debug.assert(moduleResolutionCache.moduleNameToDirectoryMap.redirectsMap.size > 0);
+            var ref = {
+                sourceFile: config.options.configFile,
+                commandLine: config
+            };
+            moduleResolutionCache.directoryToModuleNameMap.setOwnMap(moduleResolutionCache.directoryToModuleNameMap.getOrCreateMapOfCacheRedirects(ref));
+            moduleResolutionCache.moduleNameToDirectoryMap.setOwnMap(moduleResolutionCache.moduleNameToDirectoryMap.getOrCreateMapOfCacheRedirects(ref));
+        }
+        moduleResolutionCache.directoryToModuleNameMap.setOwnOptions(config.options);
+        moduleResolutionCache.moduleNameToDirectoryMap.setOwnOptions(config.options);
+    }
+    function checkConfigFileUpToDateStatus(state, configFile, oldestOutputFileTime, oldestOutputFileName) {
+        var tsconfigTime = state.host.getModifiedTime(configFile) || ts.missingFileModifiedTime;
+        if (oldestOutputFileTime < tsconfigTime) {
+            return {
+                type: ts.UpToDateStatusType.OutOfDateWithSelf,
+                outOfDateOutputFileName: oldestOutputFileName,
+                newerInputFileName: configFile
+            };
+        }
+    }
+    function getUpToDateStatusWorker(state, project, resolvedPath) {
+        var newestInputFileName = undefined;
+        var newestInputFileTime = minimumDate;
+        var host = state.host;
+        for (var _i = 0, _a = project.fileNames; _i < _a.length; _i++) {
+            var inputFile = _a[_i];
+            if (!host.fileExists(inputFile)) {
+                return {
+                    type: ts.UpToDateStatusType.Unbuildable,
+                    reason: inputFile + " does not exist"
+                };
+            }
+            var inputTime = host.getModifiedTime(inputFile) || ts.missingFileModifiedTime;
+            if (inputTime > newestInputFileTime) {
+                newestInputFileName = inputFile;
+                newestInputFileTime = inputTime;
+            }
+        }
+        if (!project.fileNames.length && !ts.canJsonReportNoInutFiles(project.raw)) {
+            return {
+                type: ts.UpToDateStatusType.ContainerOnly
+            };
+        }
+        var outputs = ts.getAllProjectOutputs(project, !host.useCaseSensitiveFileNames());
+        var oldestOutputFileName = "(none)";
+        var oldestOutputFileTime = maximumDate;
+        var newestOutputFileName = "(none)";
+        var newestOutputFileTime = minimumDate;
+        var missingOutputFileName;
+        var newestDeclarationFileContentChangedTime = minimumDate;
+        var isOutOfDateWithInputs = false;
+        for (var _b = 0, outputs_1 = outputs; _b < outputs_1.length; _b++) {
+            var output = outputs_1[_b];
+            if (!host.fileExists(output)) {
+                missingOutputFileName = output;
+                break;
+            }
+            var outputTime = host.getModifiedTime(output) || ts.missingFileModifiedTime;
+            if (outputTime < oldestOutputFileTime) {
+                oldestOutputFileTime = outputTime;
+                oldestOutputFileName = output;
+            }
+            if (outputTime < newestInputFileTime) {
+                isOutOfDateWithInputs = true;
+                break;
+            }
+            if (outputTime > newestOutputFileTime) {
+                newestOutputFileTime = outputTime;
+                newestOutputFileName = output;
+            }
+            if (isDeclarationFile(output)) {
+                var outputModifiedTime = host.getModifiedTime(output) || ts.missingFileModifiedTime;
+                newestDeclarationFileContentChangedTime = newer(newestDeclarationFileContentChangedTime, outputModifiedTime);
+            }
+        }
+        var pseudoUpToDate = false;
+        var usesPrepend = false;
+        var upstreamChangedProject;
+        if (project.projectReferences) {
+            state.projectStatus.set(resolvedPath, { type: ts.UpToDateStatusType.ComputingUpstream });
+            for (var _c = 0, _d = project.projectReferences; _c < _d.length; _c++) {
+                var ref = _d[_c];
+                usesPrepend = usesPrepend || !!(ref.prepend);
+                var resolvedRef = ts.resolveProjectReferencePath(ref);
+                var resolvedRefPath = toResolvedConfigFilePath(state, resolvedRef);
+                var refStatus = getUpToDateStatus(state, parseConfigFile(state, resolvedRef, resolvedRefPath), resolvedRefPath);
+                if (refStatus.type === ts.UpToDateStatusType.ComputingUpstream ||
+                    refStatus.type === ts.UpToDateStatusType.ContainerOnly) {
+                    continue;
+                }
+                if (refStatus.type === ts.UpToDateStatusType.Unbuildable ||
+                    refStatus.type === ts.UpToDateStatusType.UpstreamBlocked) {
+                    return {
+                        type: ts.UpToDateStatusType.UpstreamBlocked,
+                        upstreamProjectName: ref.path,
+                        upstreamProjectBlocked: refStatus.type === ts.UpToDateStatusType.UpstreamBlocked
+                    };
+                }
+                if (refStatus.type !== ts.UpToDateStatusType.UpToDate) {
+                    return {
+                        type: ts.UpToDateStatusType.UpstreamOutOfDate,
+                        upstreamProjectName: ref.path
+                    };
+                }
+                if (!missingOutputFileName) {
+                    if (refStatus.newestInputFileTime && refStatus.newestInputFileTime <= oldestOutputFileTime) {
+                        continue;
+                    }
+                    if (refStatus.newestDeclarationFileContentChangedTime && refStatus.newestDeclarationFileContentChangedTime <= oldestOutputFileTime) {
+                        pseudoUpToDate = true;
+                        upstreamChangedProject = ref.path;
+                        continue;
+                    }
+                    ts.Debug.assert(oldestOutputFileName !== undefined, "Should have an oldest output filename here");
+                    return {
+                        type: ts.UpToDateStatusType.OutOfDateWithUpstream,
+                        outOfDateOutputFileName: oldestOutputFileName,
+                        newerProjectName: ref.path
+                    };
+                }
+            }
+        }
+        if (missingOutputFileName !== undefined) {
+            return {
+                type: ts.UpToDateStatusType.OutputMissing,
+                missingOutputFileName: missingOutputFileName
+            };
+        }
+        if (isOutOfDateWithInputs) {
+            return {
+                type: ts.UpToDateStatusType.OutOfDateWithSelf,
+                outOfDateOutputFileName: oldestOutputFileName,
+                newerInputFileName: newestInputFileName
+            };
+        }
+        else {
+            var configStatus = checkConfigFileUpToDateStatus(state, project.options.configFilePath, oldestOutputFileTime, oldestOutputFileName);
+            if (configStatus)
+                return configStatus;
+            var extendedConfigStatus = ts.forEach(project.options.configFile.extendedSourceFiles || ts.emptyArray, function (configFile) { return checkConfigFileUpToDateStatus(state, configFile, oldestOutputFileTime, oldestOutputFileName); });
+            if (extendedConfigStatus)
+                return extendedConfigStatus;
+        }
+        if (!state.buildInfoChecked.has(resolvedPath)) {
+            state.buildInfoChecked.set(resolvedPath, true);
+            var buildInfoPath = ts.getTsBuildInfoEmitOutputFilePath(project.options);
+            if (buildInfoPath) {
+                var value = state.readFileWithCache(buildInfoPath);
+                var buildInfo = value && ts.getBuildInfo(value);
+                if (buildInfo && (buildInfo.bundle || buildInfo.program) && buildInfo.version !== ts.version) {
+                    return {
+                        type: ts.UpToDateStatusType.TsVersionOutputOfDate,
+                        version: buildInfo.version
+                    };
+                }
+            }
+        }
+        if (usesPrepend && pseudoUpToDate) {
+            return {
+                type: ts.UpToDateStatusType.OutOfDateWithPrepend,
+                outOfDateOutputFileName: oldestOutputFileName,
+                newerProjectName: upstreamChangedProject
+            };
+        }
+        return {
+            type: pseudoUpToDate ? ts.UpToDateStatusType.UpToDateWithUpstreamTypes : ts.UpToDateStatusType.UpToDate,
+            newestDeclarationFileContentChangedTime: newestDeclarationFileContentChangedTime,
+            newestInputFileTime: newestInputFileTime,
+            newestOutputFileTime: newestOutputFileTime,
+            newestInputFileName: newestInputFileName,
+            newestOutputFileName: newestOutputFileName,
+            oldestOutputFileName: oldestOutputFileName
+        };
+    }
+    function getUpToDateStatus(state, project, resolvedPath) {
+        if (project === undefined) {
+            return { type: ts.UpToDateStatusType.Unbuildable, reason: "File deleted mid-build" };
+        }
+        var prior = state.projectStatus.get(resolvedPath);
+        if (prior !== undefined) {
+            return prior;
+        }
+        var actual = getUpToDateStatusWorker(state, project, resolvedPath);
+        state.projectStatus.set(resolvedPath, actual);
+        return actual;
+    }
+    function updateOutputTimestampsWorker(state, proj, priorNewestUpdateTime, verboseMessage, skipOutputs) {
+        var host = state.host;
+        var outputs = ts.getAllProjectOutputs(proj, !host.useCaseSensitiveFileNames());
+        if (!skipOutputs || outputs.length !== skipOutputs.size) {
+            var reportVerbose = !!state.options.verbose;
+            var now = host.now ? host.now() : new Date();
+            for (var _i = 0, outputs_2 = outputs; _i < outputs_2.length; _i++) {
+                var file = outputs_2[_i];
+                if (skipOutputs && skipOutputs.has(toPath(state, file))) {
+                    continue;
+                }
+                if (reportVerbose) {
+                    reportVerbose = false;
+                    reportStatus(state, verboseMessage, proj.options.configFilePath);
+                }
+                if (isDeclarationFile(file)) {
+                    priorNewestUpdateTime = newer(priorNewestUpdateTime, host.getModifiedTime(file) || ts.missingFileModifiedTime);
+                }
+                host.setModifiedTime(file, now);
+            }
+        }
+        return priorNewestUpdateTime;
+    }
+    function updateOutputTimestamps(state, proj, resolvedPath) {
+        if (state.options.dry) {
+            return reportStatus(state, ts.Diagnostics.A_non_dry_build_would_update_timestamps_for_output_of_project_0, proj.options.configFilePath);
+        }
+        var priorNewestUpdateTime = updateOutputTimestampsWorker(state, proj, minimumDate, ts.Diagnostics.Updating_output_timestamps_of_project_0);
+        state.projectStatus.set(resolvedPath, {
+            type: ts.UpToDateStatusType.UpToDate,
+            newestDeclarationFileContentChangedTime: priorNewestUpdateTime,
+            oldestOutputFileName: ts.getFirstProjectOutput(proj, !state.host.useCaseSensitiveFileNames())
+        });
+    }
+    function queueReferencingProjects(state, project, projectPath, projectIndex, config, buildOrder, buildResult) {
+        if (buildResult & BuildResultFlags.AnyErrors)
+            return;
+        if (!config.options.composite)
+            return;
+        for (var index = projectIndex + 1; index < buildOrder.length; index++) {
+            var nextProject = buildOrder[index];
+            var nextProjectPath = toResolvedConfigFilePath(state, nextProject);
+            if (state.projectPendingBuild.has(nextProjectPath))
+                continue;
+            var nextProjectConfig = parseConfigFile(state, nextProject, nextProjectPath);
+            if (!nextProjectConfig || !nextProjectConfig.projectReferences)
+                continue;
+            for (var _i = 0, _a = nextProjectConfig.projectReferences; _i < _a.length; _i++) {
+                var ref = _a[_i];
+                var resolvedRefPath = resolveProjectName(state, ref.path);
+                if (toResolvedConfigFilePath(state, resolvedRefPath) !== projectPath)
+                    continue;
+                var status = state.projectStatus.get(nextProjectPath);
+                if (status) {
+                    switch (status.type) {
+                        case ts.UpToDateStatusType.UpToDate:
+                            if (buildResult & BuildResultFlags.DeclarationOutputUnchanged) {
+                                if (ref.prepend) {
+                                    state.projectStatus.set(nextProjectPath, {
+                                        type: ts.UpToDateStatusType.OutOfDateWithPrepend,
+                                        outOfDateOutputFileName: status.oldestOutputFileName,
+                                        newerProjectName: project
+                                    });
+                                }
+                                else {
+                                    status.type = ts.UpToDateStatusType.UpToDateWithUpstreamTypes;
+                                }
+                                break;
+                            }
+                        case ts.UpToDateStatusType.UpToDateWithUpstreamTypes:
+                        case ts.UpToDateStatusType.OutOfDateWithPrepend:
+                            if (!(buildResult & BuildResultFlags.DeclarationOutputUnchanged)) {
+                                state.projectStatus.set(nextProjectPath, {
+                                    type: ts.UpToDateStatusType.OutOfDateWithUpstream,
+                                    outOfDateOutputFileName: status.type === ts.UpToDateStatusType.OutOfDateWithPrepend ? status.outOfDateOutputFileName : status.oldestOutputFileName,
+                                    newerProjectName: project
+                                });
+                            }
+                            break;
+                        case ts.UpToDateStatusType.UpstreamBlocked:
+                            if (toResolvedConfigFilePath(state, resolveProjectName(state, status.upstreamProjectName)) === projectPath) {
+                                clearProjectStatus(state, nextProjectPath);
+                            }
+                            break;
+                    }
+                }
+                addProjToQueue(state, nextProjectPath, ts.ConfigFileProgramReloadLevel.None);
+                break;
+            }
+        }
+    }
+    function build(state, project, cancellationToken, onlyReferences) {
+        var buildOrder = getBuildOrderFor(state, project, onlyReferences);
+        if (!buildOrder)
+            return ts.ExitStatus.InvalidProject_OutputsSkipped;
+        setupInitialBuild(state, cancellationToken);
+        var reportQueue = true;
+        var successfulProjects = 0;
+        while (true) {
+            var invalidatedProject = getNextInvalidatedProject(state, buildOrder, reportQueue);
+            if (!invalidatedProject)
+                break;
+            reportQueue = false;
+            invalidatedProject.done(cancellationToken);
+            if (!state.diagnostics.has(invalidatedProject.projectPath))
+                successfulProjects++;
+        }
+        disableCache(state);
+        reportErrorSummary(state, buildOrder);
+        startWatching(state, buildOrder);
+        return isCircularBuildOrder(buildOrder)
+            ? ts.ExitStatus.ProjectReferenceCycle_OutputsSkipped
+            : !buildOrder.some(function (p) { return state.diagnostics.has(toResolvedConfigFilePath(state, p)); })
+                ? ts.ExitStatus.Success
+                : successfulProjects
+                    ? ts.ExitStatus.DiagnosticsPresent_OutputsGenerated
+                    : ts.ExitStatus.DiagnosticsPresent_OutputsSkipped;
+    }
+    function clean(state, project, onlyReferences) {
+        var buildOrder = getBuildOrderFor(state, project, onlyReferences);
+        if (!buildOrder)
+            return ts.ExitStatus.InvalidProject_OutputsSkipped;
+        if (isCircularBuildOrder(buildOrder)) {
+            reportErrors(state, buildOrder.circularDiagnostics);
+            return ts.ExitStatus.ProjectReferenceCycle_OutputsSkipped;
+        }
+        var options = state.options, host = state.host;
+        var filesToDelete = options.dry ? [] : undefined;
+        for (var _i = 0, buildOrder_1 = buildOrder; _i < buildOrder_1.length; _i++) {
+            var proj = buildOrder_1[_i];
+            var resolvedPath = toResolvedConfigFilePath(state, proj);
+            var parsed = parseConfigFile(state, proj, resolvedPath);
+            if (parsed === undefined) {
+                reportParseConfigFileDiagnostic(state, resolvedPath);
+                continue;
+            }
+            var outputs = ts.getAllProjectOutputs(parsed, !host.useCaseSensitiveFileNames());
+            for (var _a = 0, outputs_3 = outputs; _a < outputs_3.length; _a++) {
+                var output = outputs_3[_a];
+                if (host.fileExists(output)) {
+                    if (filesToDelete) {
+                        filesToDelete.push(output);
+                    }
+                    else {
+                        host.deleteFile(output);
+                        invalidateProject(state, resolvedPath, ts.ConfigFileProgramReloadLevel.None);
+                    }
+                }
+            }
+        }
+        if (filesToDelete) {
+            reportStatus(state, ts.Diagnostics.A_non_dry_build_would_delete_the_following_files_Colon_0, filesToDelete.map(function (f) { return "\r\n * " + f; }).join(""));
+        }
+        return ts.ExitStatus.Success;
+    }
+    function invalidateProject(state, resolved, reloadLevel) {
+        if (state.host.getParsedCommandLine && reloadLevel === ts.ConfigFileProgramReloadLevel.Partial) {
+            reloadLevel = ts.ConfigFileProgramReloadLevel.Full;
+        }
+        if (reloadLevel === ts.ConfigFileProgramReloadLevel.Full) {
+            state.configFileCache.delete(resolved);
+            state.buildOrder = undefined;
+        }
+        state.needsSummary = true;
+        clearProjectStatus(state, resolved);
+        addProjToQueue(state, resolved, reloadLevel);
+        enableCache(state);
+    }
+    function invalidateProjectAndScheduleBuilds(state, resolvedPath, reloadLevel) {
+        state.reportFileChangeDetected = true;
+        invalidateProject(state, resolvedPath, reloadLevel);
+        scheduleBuildInvalidatedProject(state);
+    }
+    function scheduleBuildInvalidatedProject(state) {
+        var hostWithWatch = state.hostWithWatch;
+        if (!hostWithWatch.setTimeout || !hostWithWatch.clearTimeout) {
+            return;
+        }
+        if (state.timerToBuildInvalidatedProject) {
+            hostWithWatch.clearTimeout(state.timerToBuildInvalidatedProject);
+        }
+        state.timerToBuildInvalidatedProject = hostWithWatch.setTimeout(buildNextInvalidatedProject, 250, state);
+    }
+    function buildNextInvalidatedProject(state) {
+        state.timerToBuildInvalidatedProject = undefined;
+        if (state.reportFileChangeDetected) {
+            state.reportFileChangeDetected = false;
+            state.projectErrorsReported.clear();
+            reportWatchStatus(state, ts.Diagnostics.File_change_detected_Starting_incremental_compilation);
+        }
+        var buildOrder = getBuildOrder(state);
+        var invalidatedProject = getNextInvalidatedProject(state, buildOrder, false);
+        if (invalidatedProject) {
+            invalidatedProject.done();
+            if (state.projectPendingBuild.size) {
+                if (state.watch && !state.timerToBuildInvalidatedProject) {
+                    scheduleBuildInvalidatedProject(state);
+                }
+                return;
+            }
+        }
+        disableCache(state);
+        reportErrorSummary(state, buildOrder);
+    }
+    function watchConfigFile(state, resolved, resolvedPath, parsed) {
+        if (!state.watch || state.allWatchedConfigFiles.has(resolvedPath))
+            return;
+        state.allWatchedConfigFiles.set(resolvedPath, state.watchFile(state.hostWithWatch, resolved, function () {
+            invalidateProjectAndScheduleBuilds(state, resolvedPath, ts.ConfigFileProgramReloadLevel.Full);
+        }, ts.PollingInterval.High, parsed === null || parsed === void 0 ? void 0 : parsed.watchOptions, ts.WatchType.ConfigFile, resolved));
+    }
+    function isSameFile(state, file1, file2) {
+        return ts.comparePaths(file1, file2, state.currentDirectory, !state.host.useCaseSensitiveFileNames()) === 0;
+    }
+    function isOutputFile(state, fileName, configFile) {
+        if (configFile.options.noEmit)
+            return false;
+        if (!ts.fileExtensionIs(fileName, ".d.ts") &&
+            (ts.fileExtensionIs(fileName, ".ts") || ts.fileExtensionIs(fileName, ".tsx"))) {
+            return false;
+        }
+        var out = configFile.options.outFile || configFile.options.out;
+        if (out && (isSameFile(state, fileName, out) || isSameFile(state, fileName, ts.removeFileExtension(out) + ".d.ts"))) {
+            return true;
+        }
+        if (configFile.options.declarationDir && ts.containsPath(configFile.options.declarationDir, fileName, state.currentDirectory, !state.host.useCaseSensitiveFileNames())) {
+            return true;
+        }
+        if (configFile.options.outDir && ts.containsPath(configFile.options.outDir, fileName, state.currentDirectory, !state.host.useCaseSensitiveFileNames())) {
+            return true;
+        }
+        return !ts.forEach(configFile.fileNames, function (inputFile) { return isSameFile(state, fileName, inputFile); });
+    }
+    function watchWildCardDirectories(state, resolved, resolvedPath, parsed) {
+        if (!state.watch)
+            return;
+        ts.updateWatchingWildcardDirectories(getOrCreateValueMapFromConfigFileMap(state.allWatchedWildcardDirectories, resolvedPath), ts.createMapFromTemplate(parsed.configFileSpecs.wildcardDirectories), function (dir, flags) { return state.watchDirectory(state.hostWithWatch, dir, function (fileOrDirectory) {
+            var fileOrDirectoryPath = toPath(state, fileOrDirectory);
+            if (fileOrDirectoryPath !== toPath(state, dir) && ts.hasExtension(fileOrDirectoryPath) && !ts.isSupportedSourceFileName(fileOrDirectory, parsed.options)) {
+                state.writeLog("Project: " + resolved + " Detected file add/remove of non supported extension: " + fileOrDirectory);
+                return;
+            }
+            if (isOutputFile(state, fileOrDirectory, parsed)) {
+                state.writeLog(fileOrDirectory + " is output file");
+                return;
+            }
+            invalidateProjectAndScheduleBuilds(state, resolvedPath, ts.ConfigFileProgramReloadLevel.Partial);
+        }, flags, parsed === null || parsed === void 0 ? void 0 : parsed.watchOptions, ts.WatchType.WildcardDirectory, resolved); });
+    }
+    function watchInputFiles(state, resolved, resolvedPath, parsed) {
+        if (!state.watch)
+            return;
+        ts.mutateMap(getOrCreateValueMapFromConfigFileMap(state.allWatchedInputFiles, resolvedPath), ts.arrayToMap(parsed.fileNames, function (fileName) { return toPath(state, fileName); }), {
+            createNewValue: function (path, input) { return state.watchFilePath(state.hostWithWatch, input, function () { return invalidateProjectAndScheduleBuilds(state, resolvedPath, ts.ConfigFileProgramReloadLevel.None); }, ts.PollingInterval.Low, parsed === null || parsed === void 0 ? void 0 : parsed.watchOptions, path, ts.WatchType.SourceFile, resolved); },
+            onDeleteValue: ts.closeFileWatcher,
+        });
+    }
+    function startWatching(state, buildOrder) {
+        if (!state.watchAllProjectsPending)
+            return;
+        state.watchAllProjectsPending = false;
+        for (var _i = 0, _a = getBuildOrderFromAnyBuildOrder(buildOrder); _i < _a.length; _i++) {
+            var resolved = _a[_i];
+            var resolvedPath = toResolvedConfigFilePath(state, resolved);
+            var cfg = parseConfigFile(state, resolved, resolvedPath);
+            watchConfigFile(state, resolved, resolvedPath, cfg);
+            if (cfg) {
+                watchWildCardDirectories(state, resolved, resolvedPath, cfg);
+                watchInputFiles(state, resolved, resolvedPath, cfg);
+            }
+        }
+    }
+    function stopWatching(state) {
+        ts.clearMap(state.allWatchedConfigFiles, ts.closeFileWatcher);
+        ts.clearMap(state.allWatchedWildcardDirectories, function (watchedWildcardDirectories) { return ts.clearMap(watchedWildcardDirectories, ts.closeFileWatcherOf); });
+        ts.clearMap(state.allWatchedInputFiles, function (watchedWildcardDirectories) { return ts.clearMap(watchedWildcardDirectories, ts.closeFileWatcher); });
+    }
+    function createSolutionBuilderWorker(watch, hostOrHostWithWatch, rootNames, options, baseWatchOptions) {
+        var state = createSolutionBuilderState(watch, hostOrHostWithWatch, rootNames, options, baseWatchOptions);
+        return {
+            build: function (project, cancellationToken) { return build(state, project, cancellationToken); },
+            clean: function (project) { return clean(state, project); },
+            buildReferences: function (project, cancellationToken) { return build(state, project, cancellationToken, true); },
+            cleanReferences: function (project) { return clean(state, project, true); },
+            getNextInvalidatedProject: function (cancellationToken) {
+                setupInitialBuild(state, cancellationToken);
+                return getNextInvalidatedProject(state, getBuildOrder(state), false);
+            },
+            getBuildOrder: function () { return getBuildOrder(state); },
+            getUpToDateStatusOfProject: function (project) {
+                var configFileName = resolveProjectName(state, project);
+                var configFilePath = toResolvedConfigFilePath(state, configFileName);
+                return getUpToDateStatus(state, parseConfigFile(state, configFileName, configFilePath), configFilePath);
+            },
+            invalidateProject: function (configFilePath, reloadLevel) { return invalidateProject(state, configFilePath, reloadLevel || ts.ConfigFileProgramReloadLevel.None); },
+            buildNextInvalidatedProject: function () { return buildNextInvalidatedProject(state); },
+            getAllParsedConfigs: function () { return ts.arrayFrom(ts.mapDefinedIterator(state.configFileCache.values(), function (config) { return isParsedCommandLine(config) ? config : undefined; })); },
+            close: function () { return stopWatching(state); },
+        };
+    }
+    function relName(state, path) {
+        return ts.convertToRelativePath(path, state.currentDirectory, function (f) { return state.getCanonicalFileName(f); });
+    }
+    function reportStatus(state, message) {
+        var args = [];
+        for (var _i = 2; _i < arguments.length; _i++) {
+            args[_i - 2] = arguments[_i];
+        }
+        state.host.reportSolutionBuilderStatus(ts.createCompilerDiagnostic.apply(void 0, __spreadArrays([message], args)));
+    }
+    function reportWatchStatus(state, message) {
+        var args = [];
+        for (var _i = 2; _i < arguments.length; _i++) {
+            args[_i - 2] = arguments[_i];
+        }
+        if (state.hostWithWatch.onWatchStatusChange) {
+            state.hostWithWatch.onWatchStatusChange(ts.createCompilerDiagnostic.apply(void 0, __spreadArrays([message], args)), state.host.getNewLine(), state.baseCompilerOptions);
+        }
+    }
+    function reportErrors(_a, errors) {
+        var host = _a.host;
+        errors.forEach(function (err) { return host.reportDiagnostic(err); });
+    }
+    function reportAndStoreErrors(state, proj, errors) {
+        reportErrors(state, errors);
+        state.projectErrorsReported.set(proj, true);
+        if (errors.length) {
+            state.diagnostics.set(proj, errors);
+        }
+    }
+    function reportParseConfigFileDiagnostic(state, proj) {
+        reportAndStoreErrors(state, proj, [state.configFileCache.get(proj)]);
+    }
+    function reportErrorSummary(state, buildOrder) {
+        if (!state.needsSummary)
+            return;
+        state.needsSummary = false;
+        var canReportSummary = state.watch || !!state.host.reportErrorSummary;
+        var diagnostics = state.diagnostics;
+        var totalErrors = 0;
+        if (isCircularBuildOrder(buildOrder)) {
+            reportBuildQueue(state, buildOrder.buildOrder);
+            reportErrors(state, buildOrder.circularDiagnostics);
+            if (canReportSummary)
+                totalErrors += ts.getErrorCountForSummary(buildOrder.circularDiagnostics);
+        }
+        else {
+            buildOrder.forEach(function (project) {
+                var projectPath = toResolvedConfigFilePath(state, project);
+                if (!state.projectErrorsReported.has(projectPath)) {
+                    reportErrors(state, diagnostics.get(projectPath) || ts.emptyArray);
+                }
+            });
+            if (canReportSummary)
+                diagnostics.forEach(function (singleProjectErrors) { return totalErrors += ts.getErrorCountForSummary(singleProjectErrors); });
+        }
+        if (state.watch) {
+            reportWatchStatus(state, ts.getWatchErrorSummaryDiagnosticMessage(totalErrors), totalErrors);
+        }
+        else if (state.host.reportErrorSummary) {
+            state.host.reportErrorSummary(totalErrors);
+        }
+    }
+    function reportBuildQueue(state, buildQueue) {
+        if (state.options.verbose) {
+            reportStatus(state, ts.Diagnostics.Projects_in_this_build_Colon_0, buildQueue.map(function (s) { return "\r\n    * " + relName(state, s); }).join(""));
+        }
+    }
+    function reportUpToDateStatus(state, configFileName, status) {
+        switch (status.type) {
+            case ts.UpToDateStatusType.OutOfDateWithSelf:
+                return reportStatus(state, ts.Diagnostics.Project_0_is_out_of_date_because_oldest_output_1_is_older_than_newest_input_2, relName(state, configFileName), relName(state, status.outOfDateOutputFileName), relName(state, status.newerInputFileName));
+            case ts.UpToDateStatusType.OutOfDateWithUpstream:
+                return reportStatus(state, ts.Diagnostics.Project_0_is_out_of_date_because_oldest_output_1_is_older_than_newest_input_2, relName(state, configFileName), relName(state, status.outOfDateOutputFileName), relName(state, status.newerProjectName));
+            case ts.UpToDateStatusType.OutputMissing:
+                return reportStatus(state, ts.Diagnostics.Project_0_is_out_of_date_because_output_file_1_does_not_exist, relName(state, configFileName), relName(state, status.missingOutputFileName));
+            case ts.UpToDateStatusType.UpToDate:
+                if (status.newestInputFileTime !== undefined) {
+                    return reportStatus(state, ts.Diagnostics.Project_0_is_up_to_date_because_newest_input_1_is_older_than_oldest_output_2, relName(state, configFileName), relName(state, status.newestInputFileName || ""), relName(state, status.oldestOutputFileName || ""));
+                }
+                break;
+            case ts.UpToDateStatusType.OutOfDateWithPrepend:
+                return reportStatus(state, ts.Diagnostics.Project_0_is_out_of_date_because_output_of_its_dependency_1_has_changed, relName(state, configFileName), relName(state, status.newerProjectName));
+            case ts.UpToDateStatusType.UpToDateWithUpstreamTypes:
+                return reportStatus(state, ts.Diagnostics.Project_0_is_up_to_date_with_d_ts_files_from_its_dependencies, relName(state, configFileName));
+            case ts.UpToDateStatusType.UpstreamOutOfDate:
+                return reportStatus(state, ts.Diagnostics.Project_0_is_out_of_date_because_its_dependency_1_is_out_of_date, relName(state, configFileName), relName(state, status.upstreamProjectName));
+            case ts.UpToDateStatusType.UpstreamBlocked:
+                return reportStatus(state, status.upstreamProjectBlocked ?
+                    ts.Diagnostics.Project_0_can_t_be_built_because_its_dependency_1_was_not_built :
+                    ts.Diagnostics.Project_0_can_t_be_built_because_its_dependency_1_has_errors, relName(state, configFileName), relName(state, status.upstreamProjectName));
+            case ts.UpToDateStatusType.Unbuildable:
+                return reportStatus(state, ts.Diagnostics.Failed_to_parse_file_0_Colon_1, relName(state, configFileName), status.reason);
+            case ts.UpToDateStatusType.TsVersionOutputOfDate:
+                return reportStatus(state, ts.Diagnostics.Project_0_is_out_of_date_because_output_for_it_was_generated_with_version_1_that_differs_with_current_version_2, relName(state, configFileName), status.version, ts.version);
+            case ts.UpToDateStatusType.ContainerOnly:
+            case ts.UpToDateStatusType.ComputingUpstream:
+                break;
+            default:
+                ts.assertType(status);
+        }
+    }
+    function verboseReportProjectStatus(state, configFileName, status) {
+        if (state.options.verbose) {
+            reportUpToDateStatus(state, configFileName, status);
+        }
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function countLines(program) {
+        var count = 0;
+        ts.forEach(program.getSourceFiles(), function (file) {
+            count += ts.getLineStarts(file).length;
+        });
+        return count;
+    }
+    function updateReportDiagnostic(sys, existing, options) {
+        return shouldBePretty(sys, options) ?
+            ts.createDiagnosticReporter(sys, true) :
+            existing;
+    }
+    function defaultIsPretty(sys) {
+        return !!sys.writeOutputIsTTY && sys.writeOutputIsTTY();
+    }
+    function shouldBePretty(sys, options) {
+        if (!options || typeof options.pretty === "undefined") {
+            return defaultIsPretty(sys);
+        }
+        return options.pretty;
+    }
+    function getOptionsForHelp(commandLine) {
+        return !!commandLine.options.all ?
+            ts.sort(ts.optionDeclarations, function (a, b) { return ts.compareStringsCaseInsensitive(a.name, b.name); }) :
+            ts.filter(ts.optionDeclarations.slice(), function (v) { return !!v.showInSimplifiedHelpView; });
+    }
+    function printVersion(sys) {
+        sys.write(ts.getDiagnosticText(ts.Diagnostics.Version_0, ts.version) + sys.newLine);
+    }
+    function printHelp(sys, optionsList, syntaxPrefix) {
+        if (syntaxPrefix === void 0) { syntaxPrefix = ""; }
+        var output = [];
+        var syntaxLength = ts.getDiagnosticText(ts.Diagnostics.Syntax_Colon_0, "").length;
+        var examplesLength = ts.getDiagnosticText(ts.Diagnostics.Examples_Colon_0, "").length;
+        var marginLength = Math.max(syntaxLength, examplesLength);
+        var syntax = makePadding(marginLength - syntaxLength);
+        syntax += "tsc " + syntaxPrefix + "[" + ts.getDiagnosticText(ts.Diagnostics.options) + "] [" + ts.getDiagnosticText(ts.Diagnostics.file) + "...]";
+        output.push(ts.getDiagnosticText(ts.Diagnostics.Syntax_Colon_0, syntax));
+        output.push(sys.newLine + sys.newLine);
+        var padding = makePadding(marginLength);
+        output.push(ts.getDiagnosticText(ts.Diagnostics.Examples_Colon_0, makePadding(marginLength - examplesLength) + "tsc hello.ts") + sys.newLine);
+        output.push(padding + "tsc --outFile file.js file.ts" + sys.newLine);
+        output.push(padding + "tsc @args.txt" + sys.newLine);
+        output.push(padding + "tsc --build tsconfig.json" + sys.newLine);
+        output.push(sys.newLine);
+        output.push(ts.getDiagnosticText(ts.Diagnostics.Options_Colon) + sys.newLine);
+        marginLength = 0;
+        var usageColumn = [];
+        var descriptionColumn = [];
+        var optionsDescriptionMap = ts.createMap();
+        for (var _i = 0, optionsList_1 = optionsList; _i < optionsList_1.length; _i++) {
+            var option = optionsList_1[_i];
+            if (!option.description) {
+                continue;
+            }
+            var usageText_1 = " ";
+            if (option.shortName) {
+                usageText_1 += "-" + option.shortName;
+                usageText_1 += getParamType(option);
+                usageText_1 += ", ";
+            }
+            usageText_1 += "--" + option.name;
+            usageText_1 += getParamType(option);
+            usageColumn.push(usageText_1);
+            var description = void 0;
+            if (option.name === "lib") {
+                description = ts.getDiagnosticText(option.description);
+                var element = option.element;
+                var typeMap = element.type;
+                optionsDescriptionMap.set(description, ts.arrayFrom(typeMap.keys()).map(function (key) { return "'" + key + "'"; }));
+            }
+            else {
+                description = ts.getDiagnosticText(option.description);
+            }
+            descriptionColumn.push(description);
+            marginLength = Math.max(usageText_1.length, marginLength);
+        }
+        var usageText = " @<" + ts.getDiagnosticText(ts.Diagnostics.file) + ">";
+        usageColumn.push(usageText);
+        descriptionColumn.push(ts.getDiagnosticText(ts.Diagnostics.Insert_command_line_options_and_files_from_a_file));
+        marginLength = Math.max(usageText.length, marginLength);
+        for (var i = 0; i < usageColumn.length; i++) {
+            var usage = usageColumn[i];
+            var description = descriptionColumn[i];
+            var kindsList = optionsDescriptionMap.get(description);
+            output.push(usage + makePadding(marginLength - usage.length + 2) + description + sys.newLine);
+            if (kindsList) {
+                output.push(makePadding(marginLength + 4));
+                for (var _a = 0, kindsList_1 = kindsList; _a < kindsList_1.length; _a++) {
+                    var kind = kindsList_1[_a];
+                    output.push(kind + " ");
+                }
+                output.push(sys.newLine);
+            }
+        }
+        for (var _b = 0, output_1 = output; _b < output_1.length; _b++) {
+            var line = output_1[_b];
+            sys.write(line);
+        }
+        return;
+        function getParamType(option) {
+            if (option.paramType !== undefined) {
+                return " " + ts.getDiagnosticText(option.paramType);
+            }
+            return "";
+        }
+        function makePadding(paddingLength) {
+            return Array(paddingLength + 1).join(" ");
+        }
+    }
+    function executeCommandLineWorker(sys, cb, commandLine) {
+        var reportDiagnostic = ts.createDiagnosticReporter(sys);
+        if (commandLine.options.build) {
+            reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.Option_build_must_be_the_first_command_line_argument));
+            return sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
+        }
+        var configFileName;
+        if (commandLine.options.locale) {
+            ts.validateLocaleAndSetLanguage(commandLine.options.locale, sys, commandLine.errors);
+        }
+        if (commandLine.errors.length > 0) {
+            commandLine.errors.forEach(reportDiagnostic);
+            return sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
+        }
+        if (commandLine.options.init) {
+            writeConfigFile(sys, reportDiagnostic, commandLine.options, commandLine.fileNames);
+            return sys.exit(ts.ExitStatus.Success);
+        }
+        if (commandLine.options.version) {
+            printVersion(sys);
+            return sys.exit(ts.ExitStatus.Success);
+        }
+        if (commandLine.options.help || commandLine.options.all) {
+            printVersion(sys);
+            printHelp(sys, getOptionsForHelp(commandLine));
+            return sys.exit(ts.ExitStatus.Success);
+        }
+        if (commandLine.options.watch && commandLine.options.listFilesOnly) {
+            reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.Options_0_and_1_cannot_be_combined, "watch", "listFilesOnly"));
+            return sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
+        }
+        if (commandLine.options.project) {
+            if (commandLine.fileNames.length !== 0) {
+                reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.Option_project_cannot_be_mixed_with_source_files_on_a_command_line));
+                return sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
+            }
+            var fileOrDirectory = ts.normalizePath(commandLine.options.project);
+            if (!fileOrDirectory || sys.directoryExists(fileOrDirectory)) {
+                configFileName = ts.combinePaths(fileOrDirectory, "tsconfig.json");
+                if (!sys.fileExists(configFileName)) {
+                    reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.Cannot_find_a_tsconfig_json_file_at_the_specified_directory_Colon_0, commandLine.options.project));
+                    return sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
+                }
+            }
+            else {
+                configFileName = fileOrDirectory;
+                if (!sys.fileExists(configFileName)) {
+                    reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.The_specified_path_does_not_exist_Colon_0, commandLine.options.project));
+                    return sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
+                }
+            }
+        }
+        else if (commandLine.fileNames.length === 0) {
+            var searchPath = ts.normalizePath(sys.getCurrentDirectory());
+            configFileName = ts.findConfigFile(searchPath, function (fileName) { return sys.fileExists(fileName); });
+        }
+        if (commandLine.fileNames.length === 0 && !configFileName) {
+            if (commandLine.options.showConfig) {
+                reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.Cannot_find_a_tsconfig_json_file_at_the_current_directory_Colon_0, ts.normalizePath(sys.getCurrentDirectory())));
+            }
+            else {
+                printVersion(sys);
+                printHelp(sys, getOptionsForHelp(commandLine));
+            }
+            return sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
+        }
+        var currentDirectory = sys.getCurrentDirectory();
+        var commandLineOptions = ts.convertToOptionsWithAbsolutePaths(commandLine.options, function (fileName) { return ts.getNormalizedAbsolutePath(fileName, currentDirectory); });
+        if (configFileName) {
+            var configParseResult = ts.parseConfigFileWithSystem(configFileName, commandLineOptions, commandLine.watchOptions, sys, reportDiagnostic);
+            if (commandLineOptions.showConfig) {
+                if (configParseResult.errors.length !== 0) {
+                    reportDiagnostic = updateReportDiagnostic(sys, reportDiagnostic, configParseResult.options);
+                    configParseResult.errors.forEach(reportDiagnostic);
+                    return sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
+                }
+                sys.write(JSON.stringify(ts.convertToTSConfig(configParseResult, configFileName, sys), null, 4) + sys.newLine);
+                return sys.exit(ts.ExitStatus.Success);
+            }
+            reportDiagnostic = updateReportDiagnostic(sys, reportDiagnostic, configParseResult.options);
+            if (ts.isWatchSet(configParseResult.options)) {
+                if (reportWatchModeWithoutSysSupport(sys, reportDiagnostic))
+                    return;
+                return createWatchOfConfigFile(sys, cb, reportDiagnostic, configParseResult, commandLineOptions, commandLine.watchOptions);
+            }
+            else if (ts.isIncrementalCompilation(configParseResult.options)) {
+                performIncrementalCompilation(sys, cb, reportDiagnostic, configParseResult);
+            }
+            else {
+                performCompilation(sys, cb, reportDiagnostic, configParseResult);
+            }
+        }
+        else {
+            if (commandLineOptions.showConfig) {
+                sys.write(JSON.stringify(ts.convertToTSConfig(commandLine, ts.combinePaths(currentDirectory, "tsconfig.json"), sys), null, 4) + sys.newLine);
+                return sys.exit(ts.ExitStatus.Success);
+            }
+            reportDiagnostic = updateReportDiagnostic(sys, reportDiagnostic, commandLineOptions);
+            if (ts.isWatchSet(commandLineOptions)) {
+                if (reportWatchModeWithoutSysSupport(sys, reportDiagnostic))
+                    return;
+                return createWatchOfFilesAndCompilerOptions(sys, cb, reportDiagnostic, commandLine.fileNames, commandLineOptions, commandLine.watchOptions);
+            }
+            else if (ts.isIncrementalCompilation(commandLineOptions)) {
+                performIncrementalCompilation(sys, cb, reportDiagnostic, __assign(__assign({}, commandLine), { options: commandLineOptions }));
+            }
+            else {
+                performCompilation(sys, cb, reportDiagnostic, __assign(__assign({}, commandLine), { options: commandLineOptions }));
+            }
+        }
+    }
+    function isBuild(commandLineArgs) {
+        if (commandLineArgs.length > 0 && commandLineArgs[0].charCodeAt(0) === 45) {
+            var firstOption = commandLineArgs[0].slice(commandLineArgs[0].charCodeAt(1) === 45 ? 2 : 1).toLowerCase();
+            return firstOption === "build" || firstOption === "b";
+        }
+        return false;
+    }
+    ts.isBuild = isBuild;
+    function executeCommandLine(system, cb, commandLineArgs) {
+        if (isBuild(commandLineArgs)) {
+            var _a = ts.parseBuildCommand(commandLineArgs.slice(1)), buildOptions_1 = _a.buildOptions, watchOptions_1 = _a.watchOptions, projects_1 = _a.projects, errors_1 = _a.errors;
+            if (buildOptions_1.generateCpuProfile && system.enableCPUProfiler) {
+                system.enableCPUProfiler(buildOptions_1.generateCpuProfile, function () { return performBuild(system, cb, buildOptions_1, watchOptions_1, projects_1, errors_1); });
+            }
+            else {
+                return performBuild(system, cb, buildOptions_1, watchOptions_1, projects_1, errors_1);
+            }
+        }
+        var commandLine = ts.parseCommandLine(commandLineArgs, function (path) { return system.readFile(path); });
+        if (commandLine.options.generateCpuProfile && system.enableCPUProfiler) {
+            system.enableCPUProfiler(commandLine.options.generateCpuProfile, function () { return executeCommandLineWorker(system, cb, commandLine); });
+        }
+        else {
+            return executeCommandLineWorker(system, cb, commandLine);
+        }
+    }
+    ts.executeCommandLine = executeCommandLine;
+    function reportWatchModeWithoutSysSupport(sys, reportDiagnostic) {
+        if (!sys.watchFile || !sys.watchDirectory) {
+            reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.The_current_host_does_not_support_the_0_option, "--watch"));
+            sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
+            return true;
+        }
+        return false;
+    }
+    function performBuild(sys, cb, buildOptions, watchOptions, projects, errors) {
+        var reportDiagnostic = updateReportDiagnostic(sys, ts.createDiagnosticReporter(sys), buildOptions);
+        if (buildOptions.locale) {
+            ts.validateLocaleAndSetLanguage(buildOptions.locale, sys, errors);
+        }
+        if (errors.length > 0) {
+            errors.forEach(reportDiagnostic);
+            return sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
+        }
+        if (buildOptions.help) {
+            printVersion(sys);
+            printHelp(sys, ts.buildOpts, "--build ");
+            return sys.exit(ts.ExitStatus.Success);
+        }
+        if (projects.length === 0) {
+            printVersion(sys);
+            printHelp(sys, ts.buildOpts, "--build ");
+            return sys.exit(ts.ExitStatus.Success);
+        }
+        if (!sys.getModifiedTime || !sys.setModifiedTime || (buildOptions.clean && !sys.deleteFile)) {
+            reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.The_current_host_does_not_support_the_0_option, "--build"));
+            return sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
+        }
+        if (buildOptions.watch) {
+            if (reportWatchModeWithoutSysSupport(sys, reportDiagnostic))
+                return;
+            var buildHost_1 = ts.createSolutionBuilderWithWatchHost(sys, undefined, reportDiagnostic, ts.createBuilderStatusReporter(sys, shouldBePretty(sys, buildOptions)), createWatchStatusReporter(sys, buildOptions));
+            updateSolutionBuilderHost(sys, cb, buildHost_1);
+            var builder_1 = ts.createSolutionBuilderWithWatch(buildHost_1, projects, buildOptions, watchOptions);
+            builder_1.build();
+            return builder_1;
+        }
+        var buildHost = ts.createSolutionBuilderHost(sys, undefined, reportDiagnostic, ts.createBuilderStatusReporter(sys, shouldBePretty(sys, buildOptions)), createReportErrorSummary(sys, buildOptions));
+        updateSolutionBuilderHost(sys, cb, buildHost);
+        var builder = ts.createSolutionBuilder(buildHost, projects, buildOptions);
+        var exitStatus = buildOptions.clean ? builder.clean() : builder.build();
+        return sys.exit(exitStatus);
+    }
+    function createReportErrorSummary(sys, options) {
+        return shouldBePretty(sys, options) ?
+            function (errorCount) { return sys.write(ts.getErrorSummaryText(errorCount, sys.newLine)); } :
+            undefined;
+    }
+    function performCompilation(sys, cb, reportDiagnostic, config) {
+        var fileNames = config.fileNames, options = config.options, projectReferences = config.projectReferences;
+        var host = ts.createCompilerHostWorker(options, undefined, sys);
+        var currentDirectory = host.getCurrentDirectory();
+        var getCanonicalFileName = ts.createGetCanonicalFileName(host.useCaseSensitiveFileNames());
+        ts.changeCompilerHostLikeToUseCache(host, function (fileName) { return ts.toPath(fileName, currentDirectory, getCanonicalFileName); });
+        enableStatistics(sys, options);
+        var programOptions = {
+            rootNames: fileNames,
+            options: options,
+            projectReferences: projectReferences,
+            host: host,
+            configFileParsingDiagnostics: ts.getConfigFileParsingDiagnostics(config)
+        };
+        var program = ts.createProgram(programOptions);
+        var exitStatus = ts.emitFilesAndReportErrorsAndGetExitStatus(program, reportDiagnostic, function (s) { return sys.write(s + sys.newLine); }, createReportErrorSummary(sys, options));
+        reportStatistics(sys, program);
+        cb(program);
+        return sys.exit(exitStatus);
+    }
+    function performIncrementalCompilation(sys, cb, reportDiagnostic, config) {
+        var options = config.options, fileNames = config.fileNames, projectReferences = config.projectReferences;
+        enableStatistics(sys, options);
+        var host = ts.createIncrementalCompilerHost(options, sys);
+        var exitStatus = ts.performIncrementalCompilation({
+            host: host,
+            system: sys,
+            rootNames: fileNames,
+            options: options,
+            configFileParsingDiagnostics: ts.getConfigFileParsingDiagnostics(config),
+            projectReferences: projectReferences,
+            reportDiagnostic: reportDiagnostic,
+            reportErrorSummary: createReportErrorSummary(sys, options),
+            afterProgramEmitAndDiagnostics: function (builderProgram) {
+                reportStatistics(sys, builderProgram.getProgram());
+                cb(builderProgram);
+            }
+        });
+        return sys.exit(exitStatus);
+    }
+    function updateSolutionBuilderHost(sys, cb, buildHost) {
+        updateCreateProgram(sys, buildHost);
+        buildHost.afterProgramEmitAndDiagnostics = function (program) {
+            reportStatistics(sys, program.getProgram());
+            cb(program);
+        };
+        buildHost.afterEmitBundle = cb;
+    }
+    function updateCreateProgram(sys, host) {
+        var compileUsingBuilder = host.createProgram;
+        host.createProgram = function (rootNames, options, host, oldProgram, configFileParsingDiagnostics, projectReferences) {
+            ts.Debug.assert(rootNames !== undefined || (options === undefined && !!oldProgram));
+            if (options !== undefined) {
+                enableStatistics(sys, options);
+            }
+            return compileUsingBuilder(rootNames, options, host, oldProgram, configFileParsingDiagnostics, projectReferences);
+        };
+    }
+    function updateWatchCompilationHost(sys, cb, watchCompilerHost) {
+        updateCreateProgram(sys, watchCompilerHost);
+        var emitFilesUsingBuilder = watchCompilerHost.afterProgramCreate;
+        watchCompilerHost.afterProgramCreate = function (builderProgram) {
+            emitFilesUsingBuilder(builderProgram);
+            reportStatistics(sys, builderProgram.getProgram());
+            cb(builderProgram);
+        };
+    }
+    function createWatchStatusReporter(sys, options) {
+        return ts.createWatchStatusReporter(sys, shouldBePretty(sys, options));
+    }
+    function createWatchOfConfigFile(system, cb, reportDiagnostic, configParseResult, optionsToExtend, watchOptionsToExtend) {
+        var watchCompilerHost = ts.createWatchCompilerHostOfConfigFile({
+            configFileName: configParseResult.options.configFilePath,
+            optionsToExtend: optionsToExtend,
+            watchOptionsToExtend: watchOptionsToExtend,
+            system: system,
+            reportDiagnostic: reportDiagnostic,
+            reportWatchStatus: createWatchStatusReporter(system, configParseResult.options)
+        });
+        updateWatchCompilationHost(system, cb, watchCompilerHost);
+        watchCompilerHost.configFileParsingResult = configParseResult;
+        return ts.createWatchProgram(watchCompilerHost);
+    }
+    function createWatchOfFilesAndCompilerOptions(system, cb, reportDiagnostic, rootFiles, options, watchOptions) {
+        var watchCompilerHost = ts.createWatchCompilerHostOfFilesAndCompilerOptions({
+            rootFiles: rootFiles,
+            options: options,
+            watchOptions: watchOptions,
+            system: system,
+            reportDiagnostic: reportDiagnostic,
+            reportWatchStatus: createWatchStatusReporter(system, options)
+        });
+        updateWatchCompilationHost(system, cb, watchCompilerHost);
+        return ts.createWatchProgram(watchCompilerHost);
+    }
+    function canReportDiagnostics(system, compilerOptions) {
+        return system === ts.sys && (compilerOptions.diagnostics || compilerOptions.extendedDiagnostics);
+    }
+    function enableStatistics(sys, compilerOptions) {
+        if (canReportDiagnostics(sys, compilerOptions)) {
+            ts.performance.enable();
+        }
+    }
+    function reportStatistics(sys, program) {
+        var statistics;
+        var compilerOptions = program.getCompilerOptions();
+        if (canReportDiagnostics(sys, compilerOptions)) {
+            statistics = [];
+            var memoryUsed = sys.getMemoryUsage ? sys.getMemoryUsage() : -1;
+            reportCountStatistic("Files", program.getSourceFiles().length);
+            reportCountStatistic("Lines", countLines(program));
+            reportCountStatistic("Nodes", program.getNodeCount());
+            reportCountStatistic("Identifiers", program.getIdentifierCount());
+            reportCountStatistic("Symbols", program.getSymbolCount());
+            reportCountStatistic("Types", program.getTypeCount());
+            reportCountStatistic("Instantiations", program.getInstantiationCount());
+            if (memoryUsed >= 0) {
+                reportStatisticalValue("Memory used", Math.round(memoryUsed / 1000) + "K");
+            }
+            var programTime = ts.performance.getDuration("Program");
+            var bindTime = ts.performance.getDuration("Bind");
+            var checkTime = ts.performance.getDuration("Check");
+            var emitTime = ts.performance.getDuration("Emit");
+            if (compilerOptions.extendedDiagnostics) {
+                var caches = program.getRelationCacheSizes();
+                reportCountStatistic("Assignability cache size", caches.assignable);
+                reportCountStatistic("Identity cache size", caches.identity);
+                reportCountStatistic("Subtype cache size", caches.subtype);
+                reportCountStatistic("Strict subtype cache size", caches.strictSubtype);
+                ts.performance.forEachMeasure(function (name, duration) { return reportTimeStatistic(name + " time", duration); });
+            }
+            else {
+                reportTimeStatistic("I/O read", ts.performance.getDuration("I/O Read"));
+                reportTimeStatistic("I/O write", ts.performance.getDuration("I/O Write"));
+                reportTimeStatistic("Parse time", programTime);
+                reportTimeStatistic("Bind time", bindTime);
+                reportTimeStatistic("Check time", checkTime);
+                reportTimeStatistic("Emit time", emitTime);
+            }
+            reportTimeStatistic("Total time", programTime + bindTime + checkTime + emitTime);
+            reportStatistics();
+            ts.performance.disable();
+        }
+        function reportStatistics() {
+            var nameSize = 0;
+            var valueSize = 0;
+            for (var _i = 0, statistics_1 = statistics; _i < statistics_1.length; _i++) {
+                var _a = statistics_1[_i], name = _a.name, value = _a.value;
+                if (name.length > nameSize) {
+                    nameSize = name.length;
+                }
+                if (value.length > valueSize) {
+                    valueSize = value.length;
+                }
+            }
+            for (var _b = 0, statistics_2 = statistics; _b < statistics_2.length; _b++) {
+                var _c = statistics_2[_b], name = _c.name, value = _c.value;
+                sys.write(ts.padRight(name + ":", nameSize + 2) + ts.padLeft(value.toString(), valueSize) + sys.newLine);
+            }
+        }
+        function reportStatisticalValue(name, value) {
+            statistics.push({ name: name, value: value });
+        }
+        function reportCountStatistic(name, count) {
+            reportStatisticalValue(name, "" + count);
+        }
+        function reportTimeStatistic(name, time) {
+            reportStatisticalValue(name, (time / 1000).toFixed(2) + "s");
+        }
+    }
+    function writeConfigFile(sys, reportDiagnostic, options, fileNames) {
+        var currentDirectory = sys.getCurrentDirectory();
+        var file = ts.normalizePath(ts.combinePaths(currentDirectory, "tsconfig.json"));
+        if (sys.fileExists(file)) {
+            reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.A_tsconfig_json_file_is_already_defined_at_Colon_0, file));
+        }
+        else {
+            sys.writeFile(file, ts.generateTSConfig(options, fileNames, sys.newLine));
+            reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.Successfully_created_a_tsconfig_json_file));
+        }
+        return;
+    }
+})(ts || (ts = {}));
+// This file actually uses arguments passed on commandline and executes it
+if (ts.Debug.isDebugging) {
+    ts.Debug.enableDebugInfo();
+}
+if (ts.sys.tryEnableSourceMapsForHost && /^development$/i.test(ts.sys.getEnvironmentVariable("NODE_ENV"))) {
+    ts.sys.tryEnableSourceMapsForHost();
+}
+if (ts.sys.setBlocking) {
+    ts.sys.setBlocking();
+}
+ts.executeCommandLine(ts.sys, ts.noop, ts.sys.args);