--- /dev/null
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var ts = require("typescript");
+var type_1 = require("../typeguard/type");
+var util_1 = require("./util");
+function isEmptyObjectType(type) {
+ if (type_1.isObjectType(type) &&
+ type.objectFlags & ts.ObjectFlags.Anonymous &&
+ type.getProperties().length === 0 &&
+ type.getCallSignatures().length === 0 &&
+ type.getConstructSignatures().length === 0 &&
+ type.getStringIndexType() === undefined &&
+ type.getNumberIndexType() === undefined) {
+ var baseTypes = type.getBaseTypes();
+ return baseTypes === undefined || baseTypes.every(isEmptyObjectType);
+ }
+ return false;
+}
+exports.isEmptyObjectType = isEmptyObjectType;
+function removeOptionalityFromType(checker, type) {
+ if (!containsTypeWithFlag(type, ts.TypeFlags.Undefined))
+ return type;
+ var allowsNull = containsTypeWithFlag(type, ts.TypeFlags.Null);
+ type = checker.getNonNullableType(type);
+ return allowsNull ? checker.getNullableType(type, ts.TypeFlags.Null) : type;
+}
+exports.removeOptionalityFromType = removeOptionalityFromType;
+function containsTypeWithFlag(type, flag) {
+ for (var _i = 0, _a = unionTypeParts(type); _i < _a.length; _i++) {
+ var t = _a[_i];
+ if (util_1.isTypeFlagSet(t, flag))
+ return true;
+ }
+ return false;
+}
+function isTypeAssignableToNumber(checker, type) {
+ return isTypeAssignableTo(checker, type, ts.TypeFlags.NumberLike);
+}
+exports.isTypeAssignableToNumber = isTypeAssignableToNumber;
+function isTypeAssignableToString(checker, type) {
+ return isTypeAssignableTo(checker, type, ts.TypeFlags.StringLike);
+}
+exports.isTypeAssignableToString = isTypeAssignableToString;
+function isTypeAssignableTo(checker, type, flags) {
+ flags |= ts.TypeFlags.Any;
+ var typeParametersSeen;
+ return (function check(t) {
+ if (type_1.isTypeParameter(t) && t.symbol !== undefined && t.symbol.declarations !== undefined) {
+ if (typeParametersSeen === undefined) {
+ typeParametersSeen = new Set([t]);
+ }
+ else if (!typeParametersSeen.has(t)) {
+ typeParametersSeen.add(t);
+ }
+ else {
+ return false;
+ }
+ var declaration = t.symbol.declarations[0];
+ if (declaration.constraint === undefined)
+ return true;
+ return check(checker.getTypeFromTypeNode(declaration.constraint));
+ }
+ if (type_1.isUnionType(t))
+ return t.types.every(check);
+ if (type_1.isIntersectionType(t))
+ return t.types.some(check);
+ return util_1.isTypeFlagSet(t, flags);
+ })(type);
+}
+function getCallSignaturesOfType(type) {
+ if (type_1.isUnionType(type)) {
+ var signatures = [];
+ for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
+ var t = _a[_i];
+ signatures.push.apply(signatures, getCallSignaturesOfType(t));
+ }
+ return signatures;
+ }
+ if (type_1.isIntersectionType(type)) {
+ var signatures = void 0;
+ for (var _b = 0, _c = type.types; _b < _c.length; _b++) {
+ var t = _c[_b];
+ var sig = getCallSignaturesOfType(t);
+ if (sig.length !== 0) {
+ if (signatures !== undefined)
+ return [];
+ signatures = sig;
+ }
+ }
+ return signatures === undefined ? [] : signatures;
+ }
+ return type.getCallSignatures();
+}
+exports.getCallSignaturesOfType = getCallSignaturesOfType;
+function unionTypeParts(type) {
+ return type_1.isUnionType(type) ? type.types : [type];
+}
+exports.unionTypeParts = unionTypeParts;
+function isThenableType(checker, node, type) {
+ if (type === void 0) { type = checker.getTypeAtLocation(node); }
+ for (var _i = 0, _a = unionTypeParts(checker.getApparentType(type)); _i < _a.length; _i++) {
+ var ty = _a[_i];
+ var then = ty.getProperty('then');
+ if (then === undefined)
+ continue;
+ var thenType = checker.getTypeOfSymbolAtLocation(then, node);
+ for (var _b = 0, _c = unionTypeParts(thenType); _b < _c.length; _b++) {
+ var t = _c[_b];
+ for (var _d = 0, _e = t.getCallSignatures(); _d < _e.length; _d++) {
+ var signature = _e[_d];
+ if (signature.parameters.length !== 0 && isCallback(checker, signature.parameters[0], node))
+ return true;
+ }
+ }
+ }
+ return false;
+}
+exports.isThenableType = isThenableType;
+function isCallback(checker, param, node) {
+ var type = checker.getApparentType(checker.getTypeOfSymbolAtLocation(param, node));
+ if (param.valueDeclaration.dotDotDotToken) {
+ type = type.getNumberIndexType();
+ if (type === undefined)
+ return false;
+ }
+ for (var _i = 0, _a = unionTypeParts(type); _i < _a.length; _i++) {
+ var t = _a[_i];
+ if (t.getCallSignatures().length !== 0)
+ return true;
+ }
+ return false;
+}
+function isFalsyType(type) {
+ if (type.flags & (ts.TypeFlags.Undefined | ts.TypeFlags.Null | ts.TypeFlags.Void))
+ return true;
+ if (type_1.isLiteralType(type))
+ return !type.value;
+ if (type.flags & ts.TypeFlags.BooleanLiteral)
+ return type.intrinsicName === 'false';
+ return false;
+}
+exports.isFalsyType = isFalsyType;
+//# 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projects / dotfiles / .git / blobdiff