--- /dev/null
+(function webpackUniversalModuleDefinition(root, factory) {
+/* istanbul ignore next */
+ if(typeof exports === 'object' && typeof module === 'object')
+ module.exports = factory();
+ else if(typeof define === 'function' && define.amd)
+ define([], factory);
+/* istanbul ignore next */
+ else if(typeof exports === 'object')
+ exports["esprima"] = factory();
+ else
+ root["esprima"] = factory();
+})(this, function() {
+return /******/ (function(modules) { // webpackBootstrap
+/******/ // The module cache
+/******/ var installedModules = {};
+
+/******/ // The require function
+/******/ function __webpack_require__(moduleId) {
+
+/******/ // Check if module is in cache
+/* istanbul ignore if */
+/******/ if(installedModules[moduleId])
+/******/ return installedModules[moduleId].exports;
+
+/******/ // Create a new module (and put it into the cache)
+/******/ var module = installedModules[moduleId] = {
+/******/ exports: {},
+/******/ id: moduleId,
+/******/ loaded: false
+/******/ };
+
+/******/ // Execute the module function
+/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+
+/******/ // Flag the module as loaded
+/******/ module.loaded = true;
+
+/******/ // Return the exports of the module
+/******/ return module.exports;
+/******/ }
+
+
+/******/ // expose the modules object (__webpack_modules__)
+/******/ __webpack_require__.m = modules;
+
+/******/ // expose the module cache
+/******/ __webpack_require__.c = installedModules;
+
+/******/ // __webpack_public_path__
+/******/ __webpack_require__.p = "";
+
+/******/ // Load entry module and return exports
+/******/ return __webpack_require__(0);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ function(module, exports, __webpack_require__) {
+
+ "use strict";
+ /*
+ Copyright JS Foundation and other contributors, https://js.foundation/
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+ Object.defineProperty(exports, "__esModule", { value: true });
+ var comment_handler_1 = __webpack_require__(1);
+ var jsx_parser_1 = __webpack_require__(3);
+ var parser_1 = __webpack_require__(8);
+ var tokenizer_1 = __webpack_require__(15);
+ function parse(code, options, delegate) {
+ var commentHandler = null;
+ var proxyDelegate = function (node, metadata) {
+ if (delegate) {
+ delegate(node, metadata);
+ }
+ if (commentHandler) {
+ commentHandler.visit(node, metadata);
+ }
+ };
+ var parserDelegate = (typeof delegate === 'function') ? proxyDelegate : null;
+ var collectComment = false;
+ if (options) {
+ collectComment = (typeof options.comment === 'boolean' && options.comment);
+ var attachComment = (typeof options.attachComment === 'boolean' && options.attachComment);
+ if (collectComment || attachComment) {
+ commentHandler = new comment_handler_1.CommentHandler();
+ commentHandler.attach = attachComment;
+ options.comment = true;
+ parserDelegate = proxyDelegate;
+ }
+ }
+ var isModule = false;
+ if (options && typeof options.sourceType === 'string') {
+ isModule = (options.sourceType === 'module');
+ }
+ var parser;
+ if (options && typeof options.jsx === 'boolean' && options.jsx) {
+ parser = new jsx_parser_1.JSXParser(code, options, parserDelegate);
+ }
+ else {
+ parser = new parser_1.Parser(code, options, parserDelegate);
+ }
+ var program = isModule ? parser.parseModule() : parser.parseScript();
+ var ast = program;
+ if (collectComment && commentHandler) {
+ ast.comments = commentHandler.comments;
+ }
+ if (parser.config.tokens) {
+ ast.tokens = parser.tokens;
+ }
+ if (parser.config.tolerant) {
+ ast.errors = parser.errorHandler.errors;
+ }
+ return ast;
+ }
+ exports.parse = parse;
+ function parseModule(code, options, delegate) {
+ var parsingOptions = options || {};
+ parsingOptions.sourceType = 'module';
+ return parse(code, parsingOptions, delegate);
+ }
+ exports.parseModule = parseModule;
+ function parseScript(code, options, delegate) {
+ var parsingOptions = options || {};
+ parsingOptions.sourceType = 'script';
+ return parse(code, parsingOptions, delegate);
+ }
+ exports.parseScript = parseScript;
+ function tokenize(code, options, delegate) {
+ var tokenizer = new tokenizer_1.Tokenizer(code, options);
+ var tokens;
+ tokens = [];
+ try {
+ while (true) {
+ var token = tokenizer.getNextToken();
+ if (!token) {
+ break;
+ }
+ if (delegate) {
+ token = delegate(token);
+ }
+ tokens.push(token);
+ }
+ }
+ catch (e) {
+ tokenizer.errorHandler.tolerate(e);
+ }
+ if (tokenizer.errorHandler.tolerant) {
+ tokens.errors = tokenizer.errors();
+ }
+ return tokens;
+ }
+ exports.tokenize = tokenize;
+ var syntax_1 = __webpack_require__(2);
+ exports.Syntax = syntax_1.Syntax;
+ // Sync with *.json manifests.
+ exports.version = '4.0.1';
+
+
+/***/ },
+/* 1 */
+/***/ function(module, exports, __webpack_require__) {
+
+ "use strict";
+ Object.defineProperty(exports, "__esModule", { value: true });
+ var syntax_1 = __webpack_require__(2);
+ var CommentHandler = (function () {
+ function CommentHandler() {
+ this.attach = false;
+ this.comments = [];
+ this.stack = [];
+ this.leading = [];
+ this.trailing = [];
+ }
+ CommentHandler.prototype.insertInnerComments = function (node, metadata) {
+ // innnerComments for properties empty block
+ // `function a() {/** comments **\/}`
+ if (node.type === syntax_1.Syntax.BlockStatement && node.body.length === 0) {
+ var innerComments = [];
+ for (var i = this.leading.length - 1; i >= 0; --i) {
+ var entry = this.leading[i];
+ if (metadata.end.offset >= entry.start) {
+ innerComments.unshift(entry.comment);
+ this.leading.splice(i, 1);
+ this.trailing.splice(i, 1);
+ }
+ }
+ if (innerComments.length) {
+ node.innerComments = innerComments;
+ }
+ }
+ };
+ CommentHandler.prototype.findTrailingComments = function (metadata) {
+ var trailingComments = [];
+ if (this.trailing.length > 0) {
+ for (var i = this.trailing.length - 1; i >= 0; --i) {
+ var entry_1 = this.trailing[i];
+ if (entry_1.start >= metadata.end.offset) {
+ trailingComments.unshift(entry_1.comment);
+ }
+ }
+ this.trailing.length = 0;
+ return trailingComments;
+ }
+ var entry = this.stack[this.stack.length - 1];
+ if (entry && entry.node.trailingComments) {
+ var firstComment = entry.node.trailingComments[0];
+ if (firstComment && firstComment.range[0] >= metadata.end.offset) {
+ trailingComments = entry.node.trailingComments;
+ delete entry.node.trailingComments;
+ }
+ }
+ return trailingComments;
+ };
+ CommentHandler.prototype.findLeadingComments = function (metadata) {
+ var leadingComments = [];
+ var target;
+ while (this.stack.length > 0) {
+ var entry = this.stack[this.stack.length - 1];
+ if (entry && entry.start >= metadata.start.offset) {
+ target = entry.node;
+ this.stack.pop();
+ }
+ else {
+ break;
+ }
+ }
+ if (target) {
+ var count = target.leadingComments ? target.leadingComments.length : 0;
+ for (var i = count - 1; i >= 0; --i) {
+ var comment = target.leadingComments[i];
+ if (comment.range[1] <= metadata.start.offset) {
+ leadingComments.unshift(comment);
+ target.leadingComments.splice(i, 1);
+ }
+ }
+ if (target.leadingComments && target.leadingComments.length === 0) {
+ delete target.leadingComments;
+ }
+ return leadingComments;
+ }
+ for (var i = this.leading.length - 1; i >= 0; --i) {
+ var entry = this.leading[i];
+ if (entry.start <= metadata.start.offset) {
+ leadingComments.unshift(entry.comment);
+ this.leading.splice(i, 1);
+ }
+ }
+ return leadingComments;
+ };
+ CommentHandler.prototype.visitNode = function (node, metadata) {
+ if (node.type === syntax_1.Syntax.Program && node.body.length > 0) {
+ return;
+ }
+ this.insertInnerComments(node, metadata);
+ var trailingComments = this.findTrailingComments(metadata);
+ var leadingComments = this.findLeadingComments(metadata);
+ if (leadingComments.length > 0) {
+ node.leadingComments = leadingComments;
+ }
+ if (trailingComments.length > 0) {
+ node.trailingComments = trailingComments;
+ }
+ this.stack.push({
+ node: node,
+ start: metadata.start.offset
+ });
+ };
+ CommentHandler.prototype.visitComment = function (node, metadata) {
+ var type = (node.type[0] === 'L') ? 'Line' : 'Block';
+ var comment = {
+ type: type,
+ value: node.value
+ };
+ if (node.range) {
+ comment.range = node.range;
+ }
+ if (node.loc) {
+ comment.loc = node.loc;
+ }
+ this.comments.push(comment);
+ if (this.attach) {
+ var entry = {
+ comment: {
+ type: type,
+ value: node.value,
+ range: [metadata.start.offset, metadata.end.offset]
+ },
+ start: metadata.start.offset
+ };
+ if (node.loc) {
+ entry.comment.loc = node.loc;
+ }
+ node.type = type;
+ this.leading.push(entry);
+ this.trailing.push(entry);
+ }
+ };
+ CommentHandler.prototype.visit = function (node, metadata) {
+ if (node.type === 'LineComment') {
+ this.visitComment(node, metadata);
+ }
+ else if (node.type === 'BlockComment') {
+ this.visitComment(node, metadata);
+ }
+ else if (this.attach) {
+ this.visitNode(node, metadata);
+ }
+ };
+ return CommentHandler;
+ }());
+ exports.CommentHandler = CommentHandler;
+
+
+/***/ },
+/* 2 */
+/***/ function(module, exports) {
+
+ "use strict";
+ Object.defineProperty(exports, "__esModule", { value: true });
+ exports.Syntax = {
+ AssignmentExpression: 'AssignmentExpression',
+ AssignmentPattern: 'AssignmentPattern',
+ ArrayExpression: 'ArrayExpression',
+ ArrayPattern: 'ArrayPattern',
+ ArrowFunctionExpression: 'ArrowFunctionExpression',
+ AwaitExpression: 'AwaitExpression',
+ BlockStatement: 'BlockStatement',
+ BinaryExpression: 'BinaryExpression',
+ BreakStatement: 'BreakStatement',
+ CallExpression: 'CallExpression',
+ CatchClause: 'CatchClause',
+ ClassBody: 'ClassBody',
+ ClassDeclaration: 'ClassDeclaration',
+ ClassExpression: 'ClassExpression',
+ ConditionalExpression: 'ConditionalExpression',
+ ContinueStatement: 'ContinueStatement',
+ DoWhileStatement: 'DoWhileStatement',
+ DebuggerStatement: 'DebuggerStatement',
+ EmptyStatement: 'EmptyStatement',
+ ExportAllDeclaration: 'ExportAllDeclaration',
+ ExportDefaultDeclaration: 'ExportDefaultDeclaration',
+ ExportNamedDeclaration: 'ExportNamedDeclaration',
+ ExportSpecifier: 'ExportSpecifier',
+ ExpressionStatement: 'ExpressionStatement',
+ ForStatement: 'ForStatement',
+ ForOfStatement: 'ForOfStatement',
+ ForInStatement: 'ForInStatement',
+ FunctionDeclaration: 'FunctionDeclaration',
+ FunctionExpression: 'FunctionExpression',
+ Identifier: 'Identifier',
+ IfStatement: 'IfStatement',
+ ImportDeclaration: 'ImportDeclaration',
+ ImportDefaultSpecifier: 'ImportDefaultSpecifier',
+ ImportNamespaceSpecifier: 'ImportNamespaceSpecifier',
+ ImportSpecifier: 'ImportSpecifier',
+ Literal: 'Literal',
+ LabeledStatement: 'LabeledStatement',
+ LogicalExpression: 'LogicalExpression',
+ MemberExpression: 'MemberExpression',
+ MetaProperty: 'MetaProperty',
+ MethodDefinition: 'MethodDefinition',
+ NewExpression: 'NewExpression',
+ ObjectExpression: 'ObjectExpression',
+ ObjectPattern: 'ObjectPattern',
+ Program: 'Program',
+ Property: 'Property',
+ RestElement: 'RestElement',
+ ReturnStatement: 'ReturnStatement',
+ SequenceExpression: 'SequenceExpression',
+ SpreadElement: 'SpreadElement',
+ Super: 'Super',
+ SwitchCase: 'SwitchCase',
+ SwitchStatement: 'SwitchStatement',
+ TaggedTemplateExpression: 'TaggedTemplateExpression',
+ TemplateElement: 'TemplateElement',
+ TemplateLiteral: 'TemplateLiteral',
+ ThisExpression: 'ThisExpression',
+ ThrowStatement: 'ThrowStatement',
+ TryStatement: 'TryStatement',
+ UnaryExpression: 'UnaryExpression',
+ UpdateExpression: 'UpdateExpression',
+ VariableDeclaration: 'VariableDeclaration',
+ VariableDeclarator: 'VariableDeclarator',
+ WhileStatement: 'WhileStatement',
+ WithStatement: 'WithStatement',
+ YieldExpression: 'YieldExpression'
+ };
+
+
+/***/ },
+/* 3 */
+/***/ function(module, exports, __webpack_require__) {
+
+ "use strict";
+/* istanbul ignore next */
+ var __extends = (this && this.__extends) || (function () {
+ var extendStatics = Object.setPrototypeOf ||
+ ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+ function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+ return function (d, b) {
+ extendStatics(d, b);
+ function __() { this.constructor = d; }
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+ })();
+ Object.defineProperty(exports, "__esModule", { value: true });
+ var character_1 = __webpack_require__(4);
+ var JSXNode = __webpack_require__(5);
+ var jsx_syntax_1 = __webpack_require__(6);
+ var Node = __webpack_require__(7);
+ var parser_1 = __webpack_require__(8);
+ var token_1 = __webpack_require__(13);
+ var xhtml_entities_1 = __webpack_require__(14);
+ token_1.TokenName[100 /* Identifier */] = 'JSXIdentifier';
+ token_1.TokenName[101 /* Text */] = 'JSXText';
+ // Fully qualified element name, e.g. <svg:path> returns "svg:path"
+ function getQualifiedElementName(elementName) {
+ var qualifiedName;
+ switch (elementName.type) {
+ case jsx_syntax_1.JSXSyntax.JSXIdentifier:
+ var id = elementName;
+ qualifiedName = id.name;
+ break;
+ case jsx_syntax_1.JSXSyntax.JSXNamespacedName:
+ var ns = elementName;
+ qualifiedName = getQualifiedElementName(ns.namespace) + ':' +
+ getQualifiedElementName(ns.name);
+ break;
+ case jsx_syntax_1.JSXSyntax.JSXMemberExpression:
+ var expr = elementName;
+ qualifiedName = getQualifiedElementName(expr.object) + '.' +
+ getQualifiedElementName(expr.property);
+ break;
+ /* istanbul ignore next */
+ default:
+ break;
+ }
+ return qualifiedName;
+ }
+ var JSXParser = (function (_super) {
+ __extends(JSXParser, _super);
+ function JSXParser(code, options, delegate) {
+ return _super.call(this, code, options, delegate) || this;
+ }
+ JSXParser.prototype.parsePrimaryExpression = function () {
+ return this.match('<') ? this.parseJSXRoot() : _super.prototype.parsePrimaryExpression.call(this);
+ };
+ JSXParser.prototype.startJSX = function () {
+ // Unwind the scanner before the lookahead token.
+ this.scanner.index = this.startMarker.index;
+ this.scanner.lineNumber = this.startMarker.line;
+ this.scanner.lineStart = this.startMarker.index - this.startMarker.column;
+ };
+ JSXParser.prototype.finishJSX = function () {
+ // Prime the next lookahead.
+ this.nextToken();
+ };
+ JSXParser.prototype.reenterJSX = function () {
+ this.startJSX();
+ this.expectJSX('}');
+ // Pop the closing '}' added from the lookahead.
+ if (this.config.tokens) {
+ this.tokens.pop();
+ }
+ };
+ JSXParser.prototype.createJSXNode = function () {
+ this.collectComments();
+ return {
+ index: this.scanner.index,
+ line: this.scanner.lineNumber,
+ column: this.scanner.index - this.scanner.lineStart
+ };
+ };
+ JSXParser.prototype.createJSXChildNode = function () {
+ return {
+ index: this.scanner.index,
+ line: this.scanner.lineNumber,
+ column: this.scanner.index - this.scanner.lineStart
+ };
+ };
+ JSXParser.prototype.scanXHTMLEntity = function (quote) {
+ var result = '&';
+ var valid = true;
+ var terminated = false;
+ var numeric = false;
+ var hex = false;
+ while (!this.scanner.eof() && valid && !terminated) {
+ var ch = this.scanner.source[this.scanner.index];
+ if (ch === quote) {
+ break;
+ }
+ terminated = (ch === ';');
+ result += ch;
+ ++this.scanner.index;
+ if (!terminated) {
+ switch (result.length) {
+ case 2:
+ // e.g. '{'
+ numeric = (ch === '#');
+ break;
+ case 3:
+ if (numeric) {
+ // e.g. 'A'
+ hex = (ch === 'x');
+ valid = hex || character_1.Character.isDecimalDigit(ch.charCodeAt(0));
+ numeric = numeric && !hex;
+ }
+ break;
+ default:
+ valid = valid && !(numeric && !character_1.Character.isDecimalDigit(ch.charCodeAt(0)));
+ valid = valid && !(hex && !character_1.Character.isHexDigit(ch.charCodeAt(0)));
+ break;
+ }
+ }
+ }
+ if (valid && terminated && result.length > 2) {
+ // e.g. 'A' becomes just '#x41'
+ var str = result.substr(1, result.length - 2);
+ if (numeric && str.length > 1) {
+ result = String.fromCharCode(parseInt(str.substr(1), 10));
+ }
+ else if (hex && str.length > 2) {
+ result = String.fromCharCode(parseInt('0' + str.substr(1), 16));
+ }
+ else if (!numeric && !hex && xhtml_entities_1.XHTMLEntities[str]) {
+ result = xhtml_entities_1.XHTMLEntities[str];
+ }
+ }
+ return result;
+ };
+ // Scan the next JSX token. This replaces Scanner#lex when in JSX mode.
+ JSXParser.prototype.lexJSX = function () {
+ var cp = this.scanner.source.charCodeAt(this.scanner.index);
+ // < > / : = { }
+ if (cp === 60 || cp === 62 || cp === 47 || cp === 58 || cp === 61 || cp === 123 || cp === 125) {
+ var value = this.scanner.source[this.scanner.index++];
+ return {
+ type: 7 /* Punctuator */,
+ value: value,
+ lineNumber: this.scanner.lineNumber,
+ lineStart: this.scanner.lineStart,
+ start: this.scanner.index - 1,
+ end: this.scanner.index
+ };
+ }
+ // " '
+ if (cp === 34 || cp === 39) {
+ var start = this.scanner.index;
+ var quote = this.scanner.source[this.scanner.index++];
+ var str = '';
+ while (!this.scanner.eof()) {
+ var ch = this.scanner.source[this.scanner.index++];
+ if (ch === quote) {
+ break;
+ }
+ else if (ch === '&') {
+ str += this.scanXHTMLEntity(quote);
+ }
+ else {
+ str += ch;
+ }
+ }
+ return {
+ type: 8 /* StringLiteral */,
+ value: str,
+ lineNumber: this.scanner.lineNumber,
+ lineStart: this.scanner.lineStart,
+ start: start,
+ end: this.scanner.index
+ };
+ }
+ // ... or .
+ if (cp === 46) {
+ var n1 = this.scanner.source.charCodeAt(this.scanner.index + 1);
+ var n2 = this.scanner.source.charCodeAt(this.scanner.index + 2);
+ var value = (n1 === 46 && n2 === 46) ? '...' : '.';
+ var start = this.scanner.index;
+ this.scanner.index += value.length;
+ return {
+ type: 7 /* Punctuator */,
+ value: value,
+ lineNumber: this.scanner.lineNumber,
+ lineStart: this.scanner.lineStart,
+ start: start,
+ end: this.scanner.index
+ };
+ }
+ // `
+ if (cp === 96) {
+ // Only placeholder, since it will be rescanned as a real assignment expression.
+ return {
+ type: 10 /* Template */,
+ value: '',
+ lineNumber: this.scanner.lineNumber,
+ lineStart: this.scanner.lineStart,
+ start: this.scanner.index,
+ end: this.scanner.index
+ };
+ }
+ // Identifer can not contain backslash (char code 92).
+ if (character_1.Character.isIdentifierStart(cp) && (cp !== 92)) {
+ var start = this.scanner.index;
+ ++this.scanner.index;
+ while (!this.scanner.eof()) {
+ var ch = this.scanner.source.charCodeAt(this.scanner.index);
+ if (character_1.Character.isIdentifierPart(ch) && (ch !== 92)) {
+ ++this.scanner.index;
+ }
+ else if (ch === 45) {
+ // Hyphen (char code 45) can be part of an identifier.
+ ++this.scanner.index;
+ }
+ else {
+ break;
+ }
+ }
+ var id = this.scanner.source.slice(start, this.scanner.index);
+ return {
+ type: 100 /* Identifier */,
+ value: id,
+ lineNumber: this.scanner.lineNumber,
+ lineStart: this.scanner.lineStart,
+ start: start,
+ end: this.scanner.index
+ };
+ }
+ return this.scanner.lex();
+ };
+ JSXParser.prototype.nextJSXToken = function () {
+ this.collectComments();
+ this.startMarker.index = this.scanner.index;
+ this.startMarker.line = this.scanner.lineNumber;
+ this.startMarker.column = this.scanner.index - this.scanner.lineStart;
+ var token = this.lexJSX();
+ this.lastMarker.index = this.scanner.index;
+ this.lastMarker.line = this.scanner.lineNumber;
+ this.lastMarker.column = this.scanner.index - this.scanner.lineStart;
+ if (this.config.tokens) {
+ this.tokens.push(this.convertToken(token));
+ }
+ return token;
+ };
+ JSXParser.prototype.nextJSXText = function () {
+ this.startMarker.index = this.scanner.index;
+ this.startMarker.line = this.scanner.lineNumber;
+ this.startMarker.column = this.scanner.index - this.scanner.lineStart;
+ var start = this.scanner.index;
+ var text = '';
+ while (!this.scanner.eof()) {
+ var ch = this.scanner.source[this.scanner.index];
+ if (ch === '{' || ch === '<') {
+ break;
+ }
+ ++this.scanner.index;
+ text += ch;
+ if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+ ++this.scanner.lineNumber;
+ if (ch === '\r' && this.scanner.source[this.scanner.index] === '\n') {
+ ++this.scanner.index;
+ }
+ this.scanner.lineStart = this.scanner.index;
+ }
+ }
+ this.lastMarker.index = this.scanner.index;
+ this.lastMarker.line = this.scanner.lineNumber;
+ this.lastMarker.column = this.scanner.index - this.scanner.lineStart;
+ var token = {
+ type: 101 /* Text */,
+ value: text,
+ lineNumber: this.scanner.lineNumber,
+ lineStart: this.scanner.lineStart,
+ start: start,
+ end: this.scanner.index
+ };
+ if ((text.length > 0) && this.config.tokens) {
+ this.tokens.push(this.convertToken(token));
+ }
+ return token;
+ };
+ JSXParser.prototype.peekJSXToken = function () {
+ var state = this.scanner.saveState();
+ this.scanner.scanComments();
+ var next = this.lexJSX();
+ this.scanner.restoreState(state);
+ return next;
+ };
+ // Expect the next JSX token to match the specified punctuator.
+ // If not, an exception will be thrown.
+ JSXParser.prototype.expectJSX = function (value) {
+ var token = this.nextJSXToken();
+ if (token.type !== 7 /* Punctuator */ || token.value !== value) {
+ this.throwUnexpectedToken(token);
+ }
+ };
+ // Return true if the next JSX token matches the specified punctuator.
+ JSXParser.prototype.matchJSX = function (value) {
+ var next = this.peekJSXToken();
+ return next.type === 7 /* Punctuator */ && next.value === value;
+ };
+ JSXParser.prototype.parseJSXIdentifier = function () {
+ var node = this.createJSXNode();
+ var token = this.nextJSXToken();
+ if (token.type !== 100 /* Identifier */) {
+ this.throwUnexpectedToken(token);
+ }
+ return this.finalize(node, new JSXNode.JSXIdentifier(token.value));
+ };
+ JSXParser.prototype.parseJSXElementName = function () {
+ var node = this.createJSXNode();
+ var elementName = this.parseJSXIdentifier();
+ if (this.matchJSX(':')) {
+ var namespace = elementName;
+ this.expectJSX(':');
+ var name_1 = this.parseJSXIdentifier();
+ elementName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_1));
+ }
+ else if (this.matchJSX('.')) {
+ while (this.matchJSX('.')) {
+ var object = elementName;
+ this.expectJSX('.');
+ var property = this.parseJSXIdentifier();
+ elementName = this.finalize(node, new JSXNode.JSXMemberExpression(object, property));
+ }
+ }
+ return elementName;
+ };
+ JSXParser.prototype.parseJSXAttributeName = function () {
+ var node = this.createJSXNode();
+ var attributeName;
+ var identifier = this.parseJSXIdentifier();
+ if (this.matchJSX(':')) {
+ var namespace = identifier;
+ this.expectJSX(':');
+ var name_2 = this.parseJSXIdentifier();
+ attributeName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_2));
+ }
+ else {
+ attributeName = identifier;
+ }
+ return attributeName;
+ };
+ JSXParser.prototype.parseJSXStringLiteralAttribute = function () {
+ var node = this.createJSXNode();
+ var token = this.nextJSXToken();
+ if (token.type !== 8 /* StringLiteral */) {
+ this.throwUnexpectedToken(token);
+ }
+ var raw = this.getTokenRaw(token);
+ return this.finalize(node, new Node.Literal(token.value, raw));
+ };
+ JSXParser.prototype.parseJSXExpressionAttribute = function () {
+ var node = this.createJSXNode();
+ this.expectJSX('{');
+ this.finishJSX();
+ if (this.match('}')) {
+ this.tolerateError('JSX attributes must only be assigned a non-empty expression');
+ }
+ var expression = this.parseAssignmentExpression();
+ this.reenterJSX();
+ return this.finalize(node, new JSXNode.JSXExpressionContainer(expression));
+ };
+ JSXParser.prototype.parseJSXAttributeValue = function () {
+ return this.matchJSX('{') ? this.parseJSXExpressionAttribute() :
+ this.matchJSX('<') ? this.parseJSXElement() : this.parseJSXStringLiteralAttribute();
+ };
+ JSXParser.prototype.parseJSXNameValueAttribute = function () {
+ var node = this.createJSXNode();
+ var name = this.parseJSXAttributeName();
+ var value = null;
+ if (this.matchJSX('=')) {
+ this.expectJSX('=');
+ value = this.parseJSXAttributeValue();
+ }
+ return this.finalize(node, new JSXNode.JSXAttribute(name, value));
+ };
+ JSXParser.prototype.parseJSXSpreadAttribute = function () {
+ var node = this.createJSXNode();
+ this.expectJSX('{');
+ this.expectJSX('...');
+ this.finishJSX();
+ var argument = this.parseAssignmentExpression();
+ this.reenterJSX();
+ return this.finalize(node, new JSXNode.JSXSpreadAttribute(argument));
+ };
+ JSXParser.prototype.parseJSXAttributes = function () {
+ var attributes = [];
+ while (!this.matchJSX('/') && !this.matchJSX('>')) {
+ var attribute = this.matchJSX('{') ? this.parseJSXSpreadAttribute() :
+ this.parseJSXNameValueAttribute();
+ attributes.push(attribute);
+ }
+ return attributes;
+ };
+ JSXParser.prototype.parseJSXOpeningElement = function () {
+ var node = this.createJSXNode();
+ this.expectJSX('<');
+ var name = this.parseJSXElementName();
+ var attributes = this.parseJSXAttributes();
+ var selfClosing = this.matchJSX('/');
+ if (selfClosing) {
+ this.expectJSX('/');
+ }
+ this.expectJSX('>');
+ return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes));
+ };
+ JSXParser.prototype.parseJSXBoundaryElement = function () {
+ var node = this.createJSXNode();
+ this.expectJSX('<');
+ if (this.matchJSX('/')) {
+ this.expectJSX('/');
+ var name_3 = this.parseJSXElementName();
+ this.expectJSX('>');
+ return this.finalize(node, new JSXNode.JSXClosingElement(name_3));
+ }
+ var name = this.parseJSXElementName();
+ var attributes = this.parseJSXAttributes();
+ var selfClosing = this.matchJSX('/');
+ if (selfClosing) {
+ this.expectJSX('/');
+ }
+ this.expectJSX('>');
+ return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes));
+ };
+ JSXParser.prototype.parseJSXEmptyExpression = function () {
+ var node = this.createJSXChildNode();
+ this.collectComments();
+ this.lastMarker.index = this.scanner.index;
+ this.lastMarker.line = this.scanner.lineNumber;
+ this.lastMarker.column = this.scanner.index - this.scanner.lineStart;
+ return this.finalize(node, new JSXNode.JSXEmptyExpression());
+ };
+ JSXParser.prototype.parseJSXExpressionContainer = function () {
+ var node = this.createJSXNode();
+ this.expectJSX('{');
+ var expression;
+ if (this.matchJSX('}')) {
+ expression = this.parseJSXEmptyExpression();
+ this.expectJSX('}');
+ }
+ else {
+ this.finishJSX();
+ expression = this.parseAssignmentExpression();
+ this.reenterJSX();
+ }
+ return this.finalize(node, new JSXNode.JSXExpressionContainer(expression));
+ };
+ JSXParser.prototype.parseJSXChildren = function () {
+ var children = [];
+ while (!this.scanner.eof()) {
+ var node = this.createJSXChildNode();
+ var token = this.nextJSXText();
+ if (token.start < token.end) {
+ var raw = this.getTokenRaw(token);
+ var child = this.finalize(node, new JSXNode.JSXText(token.value, raw));
+ children.push(child);
+ }
+ if (this.scanner.source[this.scanner.index] === '{') {
+ var container = this.parseJSXExpressionContainer();
+ children.push(container);
+ }
+ else {
+ break;
+ }
+ }
+ return children;
+ };
+ JSXParser.prototype.parseComplexJSXElement = function (el) {
+ var stack = [];
+ while (!this.scanner.eof()) {
+ el.children = el.children.concat(this.parseJSXChildren());
+ var node = this.createJSXChildNode();
+ var element = this.parseJSXBoundaryElement();
+ if (element.type === jsx_syntax_1.JSXSyntax.JSXOpeningElement) {
+ var opening = element;
+ if (opening.selfClosing) {
+ var child = this.finalize(node, new JSXNode.JSXElement(opening, [], null));
+ el.children.push(child);
+ }
+ else {
+ stack.push(el);
+ el = { node: node, opening: opening, closing: null, children: [] };
+ }
+ }
+ if (element.type === jsx_syntax_1.JSXSyntax.JSXClosingElement) {
+ el.closing = element;
+ var open_1 = getQualifiedElementName(el.opening.name);
+ var close_1 = getQualifiedElementName(el.closing.name);
+ if (open_1 !== close_1) {
+ this.tolerateError('Expected corresponding JSX closing tag for %0', open_1);
+ }
+ if (stack.length > 0) {
+ var child = this.finalize(el.node, new JSXNode.JSXElement(el.opening, el.children, el.closing));
+ el = stack[stack.length - 1];
+ el.children.push(child);
+ stack.pop();
+ }
+ else {
+ break;
+ }
+ }
+ }
+ return el;
+ };
+ JSXParser.prototype.parseJSXElement = function () {
+ var node = this.createJSXNode();
+ var opening = this.parseJSXOpeningElement();
+ var children = [];
+ var closing = null;
+ if (!opening.selfClosing) {
+ var el = this.parseComplexJSXElement({ node: node, opening: opening, closing: closing, children: children });
+ children = el.children;
+ closing = el.closing;
+ }
+ return this.finalize(node, new JSXNode.JSXElement(opening, children, closing));
+ };
+ JSXParser.prototype.parseJSXRoot = function () {
+ // Pop the opening '<' added from the lookahead.
+ if (this.config.tokens) {
+ this.tokens.pop();
+ }
+ this.startJSX();
+ var element = this.parseJSXElement();
+ this.finishJSX();
+ return element;
+ };
+ JSXParser.prototype.isStartOfExpression = function () {
+ return _super.prototype.isStartOfExpression.call(this) || this.match('<');
+ };
+ return JSXParser;
+ }(parser_1.Parser));
+ exports.JSXParser = JSXParser;
+
+
+/***/ },
+/* 4 */
+/***/ function(module, exports) {
+
+ "use strict";
+ Object.defineProperty(exports, "__esModule", { value: true });
+ // See also tools/generate-unicode-regex.js.
+ var Regex = {
+ // Unicode v8.0.0 NonAsciiIdentifierStart:
+ NonAsciiIdentifierStart: /[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0-\u08B4\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0AF9\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D\u0C58-\u0C5A\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D5F-\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2118-\u211D\u2124\u2126\u2128\u212A-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309B-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FD5\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA69D\uA6A0-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA7AD\uA7B0-\uA7B7\uA7F7-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA8FD\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uA9E0-\uA9E4\uA9E6-\uA9EF\uA9FA-\uA9FE\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA7E-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB65\uAB70-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-\uDD74\uDE80-\uDE9C\uDEA0-\uDED0\uDF00-\uDF1F\uDF30-\uDF4A\uDF50-\uDF75\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|\uD801[\uDC00-\uDC9D\uDD00-\uDD27\uDD30-\uDD63\uDE00-\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-\uDC76\uDC80-\uDC9E\uDCE0-\uDCF2\uDCF4\uDCF5\uDD00-\uDD15\uDD20-\uDD39\uDD80-\uDDB7\uDDBE\uDDBF\uDE00\uDE10-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE60-\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE4\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48\uDC80-\uDCB2\uDCC0-\uDCF2]|\uD804[\uDC03-\uDC37\uDC83-\uDCAF\uDCD0-\uDCE8\uDD03-\uDD26\uDD50-\uDD72\uDD76\uDD83-\uDDB2\uDDC1-\uDDC4\uDDDA\uDDDC\uDE00-\uDE11\uDE13-\uDE2B\uDE80-\uDE86\uDE88\uDE8A-\uDE8D\uDE8F-\uDE9D\uDE9F-\uDEA8\uDEB0-\uDEDE\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3D\uDF50\uDF5D-\uDF61]|\uD805[\uDC80-\uDCAF\uDCC4\uDCC5\uDCC7\uDD80-\uDDAE\uDDD8-\uDDDB\uDE00-\uDE2F\uDE44\uDE80-\uDEAA\uDF00-\uDF19]|\uD806[\uDCA0-\uDCDF\uDCFF\uDEC0-\uDEF8]|\uD808[\uDC00-\uDF99]|\uD809[\uDC00-\uDC6E\uDC80-\uDD43]|[\uD80C\uD840-\uD868\uD86A-\uD86C\uD86F-\uD872][\uDC00-\uDFFF]|\uD80D[\uDC00-\uDC2E]|\uD811[\uDC00-\uDE46]|\uD81A[\uDC00-\uDE38\uDE40-\uDE5E\uDED0-\uDEED\uDF00-\uDF2F\uDF40-\uDF43\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50\uDF93-\uDF9F]|\uD82C[\uDC00\uDC01]|\uD82F[\uDC00-\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99]|\uD835[\uDC00-\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-\uDFC2\uDFC4-\uDFCB]|\uD83A[\uDC00-\uDCC4]|\uD83B[\uDE00-\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-\uDC1D\uDC20-\uDFFF]|\uD873[\uDC00-\uDEA1]|\uD87E[\uDC00-\uDE1D]/,
+ // Unicode v8.0.0 NonAsciiIdentifierPart:
+ NonAsciiIdentifierPart: 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+ };
+ exports.Character = {
+ /* tslint:disable:no-bitwise */
+ fromCodePoint: function (cp) {
+ return (cp < 0x10000) ? String.fromCharCode(cp) :
+ String.fromCharCode(0xD800 + ((cp - 0x10000) >> 10)) +
+ String.fromCharCode(0xDC00 + ((cp - 0x10000) & 1023));
+ },
+ // https://tc39.github.io/ecma262/#sec-white-space
+ isWhiteSpace: function (cp) {
+ return (cp === 0x20) || (cp === 0x09) || (cp === 0x0B) || (cp === 0x0C) || (cp === 0xA0) ||
+ (cp >= 0x1680 && [0x1680, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(cp) >= 0);
+ },
+ // https://tc39.github.io/ecma262/#sec-line-terminators
+ isLineTerminator: function (cp) {
+ return (cp === 0x0A) || (cp === 0x0D) || (cp === 0x2028) || (cp === 0x2029);
+ },
+ // https://tc39.github.io/ecma262/#sec-names-and-keywords
+ isIdentifierStart: function (cp) {
+ return (cp === 0x24) || (cp === 0x5F) ||
+ (cp >= 0x41 && cp <= 0x5A) ||
+ (cp >= 0x61 && cp <= 0x7A) ||
+ (cp === 0x5C) ||
+ ((cp >= 0x80) && Regex.NonAsciiIdentifierStart.test(exports.Character.fromCodePoint(cp)));
+ },
+ isIdentifierPart: function (cp) {
+ return (cp === 0x24) || (cp === 0x5F) ||
+ (cp >= 0x41 && cp <= 0x5A) ||
+ (cp >= 0x61 && cp <= 0x7A) ||
+ (cp >= 0x30 && cp <= 0x39) ||
+ (cp === 0x5C) ||
+ ((cp >= 0x80) && Regex.NonAsciiIdentifierPart.test(exports.Character.fromCodePoint(cp)));
+ },
+ // https://tc39.github.io/ecma262/#sec-literals-numeric-literals
+ isDecimalDigit: function (cp) {
+ return (cp >= 0x30 && cp <= 0x39); // 0..9
+ },
+ isHexDigit: function (cp) {
+ return (cp >= 0x30 && cp <= 0x39) ||
+ (cp >= 0x41 && cp <= 0x46) ||
+ (cp >= 0x61 && cp <= 0x66); // a..f
+ },
+ isOctalDigit: function (cp) {
+ return (cp >= 0x30 && cp <= 0x37); // 0..7
+ }
+ };
+
+
+/***/ },
+/* 5 */
+/***/ function(module, exports, __webpack_require__) {
+
+ "use strict";
+ Object.defineProperty(exports, "__esModule", { value: true });
+ var jsx_syntax_1 = __webpack_require__(6);
+ /* tslint:disable:max-classes-per-file */
+ var JSXClosingElement = (function () {
+ function JSXClosingElement(name) {
+ this.type = jsx_syntax_1.JSXSyntax.JSXClosingElement;
+ this.name = name;
+ }
+ return JSXClosingElement;
+ }());
+ exports.JSXClosingElement = JSXClosingElement;
+ var JSXElement = (function () {
+ function JSXElement(openingElement, children, closingElement) {
+ this.type = jsx_syntax_1.JSXSyntax.JSXElement;
+ this.openingElement = openingElement;
+ this.children = children;
+ this.closingElement = closingElement;
+ }
+ return JSXElement;
+ }());
+ exports.JSXElement = JSXElement;
+ var JSXEmptyExpression = (function () {
+ function JSXEmptyExpression() {
+ this.type = jsx_syntax_1.JSXSyntax.JSXEmptyExpression;
+ }
+ return JSXEmptyExpression;
+ }());
+ exports.JSXEmptyExpression = JSXEmptyExpression;
+ var JSXExpressionContainer = (function () {
+ function JSXExpressionContainer(expression) {
+ this.type = jsx_syntax_1.JSXSyntax.JSXExpressionContainer;
+ this.expression = expression;
+ }
+ return JSXExpressionContainer;
+ }());
+ exports.JSXExpressionContainer = JSXExpressionContainer;
+ var JSXIdentifier = (function () {
+ function JSXIdentifier(name) {
+ this.type = jsx_syntax_1.JSXSyntax.JSXIdentifier;
+ this.name = name;
+ }
+ return JSXIdentifier;
+ }());
+ exports.JSXIdentifier = JSXIdentifier;
+ var JSXMemberExpression = (function () {
+ function JSXMemberExpression(object, property) {
+ this.type = jsx_syntax_1.JSXSyntax.JSXMemberExpression;
+ this.object = object;
+ this.property = property;
+ }
+ return JSXMemberExpression;
+ }());
+ exports.JSXMemberExpression = JSXMemberExpression;
+ var JSXAttribute = (function () {
+ function JSXAttribute(name, value) {
+ this.type = jsx_syntax_1.JSXSyntax.JSXAttribute;
+ this.name = name;
+ this.value = value;
+ }
+ return JSXAttribute;
+ }());
+ exports.JSXAttribute = JSXAttribute;
+ var JSXNamespacedName = (function () {
+ function JSXNamespacedName(namespace, name) {
+ this.type = jsx_syntax_1.JSXSyntax.JSXNamespacedName;
+ this.namespace = namespace;
+ this.name = name;
+ }
+ return JSXNamespacedName;
+ }());
+ exports.JSXNamespacedName = JSXNamespacedName;
+ var JSXOpeningElement = (function () {
+ function JSXOpeningElement(name, selfClosing, attributes) {
+ this.type = jsx_syntax_1.JSXSyntax.JSXOpeningElement;
+ this.name = name;
+ this.selfClosing = selfClosing;
+ this.attributes = attributes;
+ }
+ return JSXOpeningElement;
+ }());
+ exports.JSXOpeningElement = JSXOpeningElement;
+ var JSXSpreadAttribute = (function () {
+ function JSXSpreadAttribute(argument) {
+ this.type = jsx_syntax_1.JSXSyntax.JSXSpreadAttribute;
+ this.argument = argument;
+ }
+ return JSXSpreadAttribute;
+ }());
+ exports.JSXSpreadAttribute = JSXSpreadAttribute;
+ var JSXText = (function () {
+ function JSXText(value, raw) {
+ this.type = jsx_syntax_1.JSXSyntax.JSXText;
+ this.value = value;
+ this.raw = raw;
+ }
+ return JSXText;
+ }());
+ exports.JSXText = JSXText;
+
+
+/***/ },
+/* 6 */
+/***/ function(module, exports) {
+
+ "use strict";
+ Object.defineProperty(exports, "__esModule", { value: true });
+ exports.JSXSyntax = {
+ JSXAttribute: 'JSXAttribute',
+ JSXClosingElement: 'JSXClosingElement',
+ JSXElement: 'JSXElement',
+ JSXEmptyExpression: 'JSXEmptyExpression',
+ JSXExpressionContainer: 'JSXExpressionContainer',
+ JSXIdentifier: 'JSXIdentifier',
+ JSXMemberExpression: 'JSXMemberExpression',
+ JSXNamespacedName: 'JSXNamespacedName',
+ JSXOpeningElement: 'JSXOpeningElement',
+ JSXSpreadAttribute: 'JSXSpreadAttribute',
+ JSXText: 'JSXText'
+ };
+
+
+/***/ },
+/* 7 */
+/***/ function(module, exports, __webpack_require__) {
+
+ "use strict";
+ Object.defineProperty(exports, "__esModule", { value: true });
+ var syntax_1 = __webpack_require__(2);
+ /* tslint:disable:max-classes-per-file */
+ var ArrayExpression = (function () {
+ function ArrayExpression(elements) {
+ this.type = syntax_1.Syntax.ArrayExpression;
+ this.elements = elements;
+ }
+ return ArrayExpression;
+ }());
+ exports.ArrayExpression = ArrayExpression;
+ var ArrayPattern = (function () {
+ function ArrayPattern(elements) {
+ this.type = syntax_1.Syntax.ArrayPattern;
+ this.elements = elements;
+ }
+ return ArrayPattern;
+ }());
+ exports.ArrayPattern = ArrayPattern;
+ var ArrowFunctionExpression = (function () {
+ function ArrowFunctionExpression(params, body, expression) {
+ this.type = syntax_1.Syntax.ArrowFunctionExpression;
+ this.id = null;
+ this.params = params;
+ this.body = body;
+ this.generator = false;
+ this.expression = expression;
+ this.async = false;
+ }
+ return ArrowFunctionExpression;
+ }());
+ exports.ArrowFunctionExpression = ArrowFunctionExpression;
+ var AssignmentExpression = (function () {
+ function AssignmentExpression(operator, left, right) {
+ this.type = syntax_1.Syntax.AssignmentExpression;
+ this.operator = operator;
+ this.left = left;
+ this.right = right;
+ }
+ return AssignmentExpression;
+ }());
+ exports.AssignmentExpression = AssignmentExpression;
+ var AssignmentPattern = (function () {
+ function AssignmentPattern(left, right) {
+ this.type = syntax_1.Syntax.AssignmentPattern;
+ this.left = left;
+ this.right = right;
+ }
+ return AssignmentPattern;
+ }());
+ exports.AssignmentPattern = AssignmentPattern;
+ var AsyncArrowFunctionExpression = (function () {
+ function AsyncArrowFunctionExpression(params, body, expression) {
+ this.type = syntax_1.Syntax.ArrowFunctionExpression;
+ this.id = null;
+ this.params = params;
+ this.body = body;
+ this.generator = false;
+ this.expression = expression;
+ this.async = true;
+ }
+ return AsyncArrowFunctionExpression;
+ }());
+ exports.AsyncArrowFunctionExpression = AsyncArrowFunctionExpression;
+ var AsyncFunctionDeclaration = (function () {
+ function AsyncFunctionDeclaration(id, params, body) {
+ this.type = syntax_1.Syntax.FunctionDeclaration;
+ this.id = id;
+ this.params = params;
+ this.body = body;
+ this.generator = false;
+ this.expression = false;
+ this.async = true;
+ }
+ return AsyncFunctionDeclaration;
+ }());
+ exports.AsyncFunctionDeclaration = AsyncFunctionDeclaration;
+ var AsyncFunctionExpression = (function () {
+ function AsyncFunctionExpression(id, params, body) {
+ this.type = syntax_1.Syntax.FunctionExpression;
+ this.id = id;
+ this.params = params;
+ this.body = body;
+ this.generator = false;
+ this.expression = false;
+ this.async = true;
+ }
+ return AsyncFunctionExpression;
+ }());
+ exports.AsyncFunctionExpression = AsyncFunctionExpression;
+ var AwaitExpression = (function () {
+ function AwaitExpression(argument) {
+ this.type = syntax_1.Syntax.AwaitExpression;
+ this.argument = argument;
+ }
+ return AwaitExpression;
+ }());
+ exports.AwaitExpression = AwaitExpression;
+ var BinaryExpression = (function () {
+ function BinaryExpression(operator, left, right) {
+ var logical = (operator === '||' || operator === '&&');
+ this.type = logical ? syntax_1.Syntax.LogicalExpression : syntax_1.Syntax.BinaryExpression;
+ this.operator = operator;
+ this.left = left;
+ this.right = right;
+ }
+ return BinaryExpression;
+ }());
+ exports.BinaryExpression = BinaryExpression;
+ var BlockStatement = (function () {
+ function BlockStatement(body) {
+ this.type = syntax_1.Syntax.BlockStatement;
+ this.body = body;
+ }
+ return BlockStatement;
+ }());
+ exports.BlockStatement = BlockStatement;
+ var BreakStatement = (function () {
+ function BreakStatement(label) {
+ this.type = syntax_1.Syntax.BreakStatement;
+ this.label = label;
+ }
+ return BreakStatement;
+ }());
+ exports.BreakStatement = BreakStatement;
+ var CallExpression = (function () {
+ function CallExpression(callee, args) {
+ this.type = syntax_1.Syntax.CallExpression;
+ this.callee = callee;
+ this.arguments = args;
+ }
+ return CallExpression;
+ }());
+ exports.CallExpression = CallExpression;
+ var CatchClause = (function () {
+ function CatchClause(param, body) {
+ this.type = syntax_1.Syntax.CatchClause;
+ this.param = param;
+ this.body = body;
+ }
+ return CatchClause;
+ }());
+ exports.CatchClause = CatchClause;
+ var ClassBody = (function () {
+ function ClassBody(body) {
+ this.type = syntax_1.Syntax.ClassBody;
+ this.body = body;
+ }
+ return ClassBody;
+ }());
+ exports.ClassBody = ClassBody;
+ var ClassDeclaration = (function () {
+ function ClassDeclaration(id, superClass, body) {
+ this.type = syntax_1.Syntax.ClassDeclaration;
+ this.id = id;
+ this.superClass = superClass;
+ this.body = body;
+ }
+ return ClassDeclaration;
+ }());
+ exports.ClassDeclaration = ClassDeclaration;
+ var ClassExpression = (function () {
+ function ClassExpression(id, superClass, body) {
+ this.type = syntax_1.Syntax.ClassExpression;
+ this.id = id;
+ this.superClass = superClass;
+ this.body = body;
+ }
+ return ClassExpression;
+ }());
+ exports.ClassExpression = ClassExpression;
+ var ComputedMemberExpression = (function () {
+ function ComputedMemberExpression(object, property) {
+ this.type = syntax_1.Syntax.MemberExpression;
+ this.computed = true;
+ this.object = object;
+ this.property = property;
+ }
+ return ComputedMemberExpression;
+ }());
+ exports.ComputedMemberExpression = ComputedMemberExpression;
+ var ConditionalExpression = (function () {
+ function ConditionalExpression(test, consequent, alternate) {
+ this.type = syntax_1.Syntax.ConditionalExpression;
+ this.test = test;
+ this.consequent = consequent;
+ this.alternate = alternate;
+ }
+ return ConditionalExpression;
+ }());
+ exports.ConditionalExpression = ConditionalExpression;
+ var ContinueStatement = (function () {
+ function ContinueStatement(label) {
+ this.type = syntax_1.Syntax.ContinueStatement;
+ this.label = label;
+ }
+ return ContinueStatement;
+ }());
+ exports.ContinueStatement = ContinueStatement;
+ var DebuggerStatement = (function () {
+ function DebuggerStatement() {
+ this.type = syntax_1.Syntax.DebuggerStatement;
+ }
+ return DebuggerStatement;
+ }());
+ exports.DebuggerStatement = DebuggerStatement;
+ var Directive = (function () {
+ function Directive(expression, directive) {
+ this.type = syntax_1.Syntax.ExpressionStatement;
+ this.expression = expression;
+ this.directive = directive;
+ }
+ return Directive;
+ }());
+ exports.Directive = Directive;
+ var DoWhileStatement = (function () {
+ function DoWhileStatement(body, test) {
+ this.type = syntax_1.Syntax.DoWhileStatement;
+ this.body = body;
+ this.test = test;
+ }
+ return DoWhileStatement;
+ }());
+ exports.DoWhileStatement = DoWhileStatement;
+ var EmptyStatement = (function () {
+ function EmptyStatement() {
+ this.type = syntax_1.Syntax.EmptyStatement;
+ }
+ return EmptyStatement;
+ }());
+ exports.EmptyStatement = EmptyStatement;
+ var ExportAllDeclaration = (function () {
+ function ExportAllDeclaration(source) {
+ this.type = syntax_1.Syntax.ExportAllDeclaration;
+ this.source = source;
+ }
+ return ExportAllDeclaration;
+ }());
+ exports.ExportAllDeclaration = ExportAllDeclaration;
+ var ExportDefaultDeclaration = (function () {
+ function ExportDefaultDeclaration(declaration) {
+ this.type = syntax_1.Syntax.ExportDefaultDeclaration;
+ this.declaration = declaration;
+ }
+ return ExportDefaultDeclaration;
+ }());
+ exports.ExportDefaultDeclaration = ExportDefaultDeclaration;
+ var ExportNamedDeclaration = (function () {
+ function ExportNamedDeclaration(declaration, specifiers, source) {
+ this.type = syntax_1.Syntax.ExportNamedDeclaration;
+ this.declaration = declaration;
+ this.specifiers = specifiers;
+ this.source = source;
+ }
+ return ExportNamedDeclaration;
+ }());
+ exports.ExportNamedDeclaration = ExportNamedDeclaration;
+ var ExportSpecifier = (function () {
+ function ExportSpecifier(local, exported) {
+ this.type = syntax_1.Syntax.ExportSpecifier;
+ this.exported = exported;
+ this.local = local;
+ }
+ return ExportSpecifier;
+ }());
+ exports.ExportSpecifier = ExportSpecifier;
+ var ExpressionStatement = (function () {
+ function ExpressionStatement(expression) {
+ this.type = syntax_1.Syntax.ExpressionStatement;
+ this.expression = expression;
+ }
+ return ExpressionStatement;
+ }());
+ exports.ExpressionStatement = ExpressionStatement;
+ var ForInStatement = (function () {
+ function ForInStatement(left, right, body) {
+ this.type = syntax_1.Syntax.ForInStatement;
+ this.left = left;
+ this.right = right;
+ this.body = body;
+ this.each = false;
+ }
+ return ForInStatement;
+ }());
+ exports.ForInStatement = ForInStatement;
+ var ForOfStatement = (function () {
+ function ForOfStatement(left, right, body) {
+ this.type = syntax_1.Syntax.ForOfStatement;
+ this.left = left;
+ this.right = right;
+ this.body = body;
+ }
+ return ForOfStatement;
+ }());
+ exports.ForOfStatement = ForOfStatement;
+ var ForStatement = (function () {
+ function ForStatement(init, test, update, body) {
+ this.type = syntax_1.Syntax.ForStatement;
+ this.init = init;
+ this.test = test;
+ this.update = update;
+ this.body = body;
+ }
+ return ForStatement;
+ }());
+ exports.ForStatement = ForStatement;
+ var FunctionDeclaration = (function () {
+ function FunctionDeclaration(id, params, body, generator) {
+ this.type = syntax_1.Syntax.FunctionDeclaration;
+ this.id = id;
+ this.params = params;
+ this.body = body;
+ this.generator = generator;
+ this.expression = false;
+ this.async = false;
+ }
+ return FunctionDeclaration;
+ }());
+ exports.FunctionDeclaration = FunctionDeclaration;
+ var FunctionExpression = (function () {
+ function FunctionExpression(id, params, body, generator) {
+ this.type = syntax_1.Syntax.FunctionExpression;
+ this.id = id;
+ this.params = params;
+ this.body = body;
+ this.generator = generator;
+ this.expression = false;
+ this.async = false;
+ }
+ return FunctionExpression;
+ }());
+ exports.FunctionExpression = FunctionExpression;
+ var Identifier = (function () {
+ function Identifier(name) {
+ this.type = syntax_1.Syntax.Identifier;
+ this.name = name;
+ }
+ return Identifier;
+ }());
+ exports.Identifier = Identifier;
+ var IfStatement = (function () {
+ function IfStatement(test, consequent, alternate) {
+ this.type = syntax_1.Syntax.IfStatement;
+ this.test = test;
+ this.consequent = consequent;
+ this.alternate = alternate;
+ }
+ return IfStatement;
+ }());
+ exports.IfStatement = IfStatement;
+ var ImportDeclaration = (function () {
+ function ImportDeclaration(specifiers, source) {
+ this.type = syntax_1.Syntax.ImportDeclaration;
+ this.specifiers = specifiers;
+ this.source = source;
+ }
+ return ImportDeclaration;
+ }());
+ exports.ImportDeclaration = ImportDeclaration;
+ var ImportDefaultSpecifier = (function () {
+ function ImportDefaultSpecifier(local) {
+ this.type = syntax_1.Syntax.ImportDefaultSpecifier;
+ this.local = local;
+ }
+ return ImportDefaultSpecifier;
+ }());
+ exports.ImportDefaultSpecifier = ImportDefaultSpecifier;
+ var ImportNamespaceSpecifier = (function () {
+ function ImportNamespaceSpecifier(local) {
+ this.type = syntax_1.Syntax.ImportNamespaceSpecifier;
+ this.local = local;
+ }
+ return ImportNamespaceSpecifier;
+ }());
+ exports.ImportNamespaceSpecifier = ImportNamespaceSpecifier;
+ var ImportSpecifier = (function () {
+ function ImportSpecifier(local, imported) {
+ this.type = syntax_1.Syntax.ImportSpecifier;
+ this.local = local;
+ this.imported = imported;
+ }
+ return ImportSpecifier;
+ }());
+ exports.ImportSpecifier = ImportSpecifier;
+ var LabeledStatement = (function () {
+ function LabeledStatement(label, body) {
+ this.type = syntax_1.Syntax.LabeledStatement;
+ this.label = label;
+ this.body = body;
+ }
+ return LabeledStatement;
+ }());
+ exports.LabeledStatement = LabeledStatement;
+ var Literal = (function () {
+ function Literal(value, raw) {
+ this.type = syntax_1.Syntax.Literal;
+ this.value = value;
+ this.raw = raw;
+ }
+ return Literal;
+ }());
+ exports.Literal = Literal;
+ var MetaProperty = (function () {
+ function MetaProperty(meta, property) {
+ this.type = syntax_1.Syntax.MetaProperty;
+ this.meta = meta;
+ this.property = property;
+ }
+ return MetaProperty;
+ }());
+ exports.MetaProperty = MetaProperty;
+ var MethodDefinition = (function () {
+ function MethodDefinition(key, computed, value, kind, isStatic) {
+ this.type = syntax_1.Syntax.MethodDefinition;
+ this.key = key;
+ this.computed = computed;
+ this.value = value;
+ this.kind = kind;
+ this.static = isStatic;
+ }
+ return MethodDefinition;
+ }());
+ exports.MethodDefinition = MethodDefinition;
+ var Module = (function () {
+ function Module(body) {
+ this.type = syntax_1.Syntax.Program;
+ this.body = body;
+ this.sourceType = 'module';
+ }
+ return Module;
+ }());
+ exports.Module = Module;
+ var NewExpression = (function () {
+ function NewExpression(callee, args) {
+ this.type = syntax_1.Syntax.NewExpression;
+ this.callee = callee;
+ this.arguments = args;
+ }
+ return NewExpression;
+ }());
+ exports.NewExpression = NewExpression;
+ var ObjectExpression = (function () {
+ function ObjectExpression(properties) {
+ this.type = syntax_1.Syntax.ObjectExpression;
+ this.properties = properties;
+ }
+ return ObjectExpression;
+ }());
+ exports.ObjectExpression = ObjectExpression;
+ var ObjectPattern = (function () {
+ function ObjectPattern(properties) {
+ this.type = syntax_1.Syntax.ObjectPattern;
+ this.properties = properties;
+ }
+ return ObjectPattern;
+ }());
+ exports.ObjectPattern = ObjectPattern;
+ var Property = (function () {
+ function Property(kind, key, computed, value, method, shorthand) {
+ this.type = syntax_1.Syntax.Property;
+ this.key = key;
+ this.computed = computed;
+ this.value = value;
+ this.kind = kind;
+ this.method = method;
+ this.shorthand = shorthand;
+ }
+ return Property;
+ }());
+ exports.Property = Property;
+ var RegexLiteral = (function () {
+ function RegexLiteral(value, raw, pattern, flags) {
+ this.type = syntax_1.Syntax.Literal;
+ this.value = value;
+ this.raw = raw;
+ this.regex = { pattern: pattern, flags: flags };
+ }
+ return RegexLiteral;
+ }());
+ exports.RegexLiteral = RegexLiteral;
+ var RestElement = (function () {
+ function RestElement(argument) {
+ this.type = syntax_1.Syntax.RestElement;
+ this.argument = argument;
+ }
+ return RestElement;
+ }());
+ exports.RestElement = RestElement;
+ var ReturnStatement = (function () {
+ function ReturnStatement(argument) {
+ this.type = syntax_1.Syntax.ReturnStatement;
+ this.argument = argument;
+ }
+ return ReturnStatement;
+ }());
+ exports.ReturnStatement = ReturnStatement;
+ var Script = (function () {
+ function Script(body) {
+ this.type = syntax_1.Syntax.Program;
+ this.body = body;
+ this.sourceType = 'script';
+ }
+ return Script;
+ }());
+ exports.Script = Script;
+ var SequenceExpression = (function () {
+ function SequenceExpression(expressions) {
+ this.type = syntax_1.Syntax.SequenceExpression;
+ this.expressions = expressions;
+ }
+ return SequenceExpression;
+ }());
+ exports.SequenceExpression = SequenceExpression;
+ var SpreadElement = (function () {
+ function SpreadElement(argument) {
+ this.type = syntax_1.Syntax.SpreadElement;
+ this.argument = argument;
+ }
+ return SpreadElement;
+ }());
+ exports.SpreadElement = SpreadElement;
+ var StaticMemberExpression = (function () {
+ function StaticMemberExpression(object, property) {
+ this.type = syntax_1.Syntax.MemberExpression;
+ this.computed = false;
+ this.object = object;
+ this.property = property;
+ }
+ return StaticMemberExpression;
+ }());
+ exports.StaticMemberExpression = StaticMemberExpression;
+ var Super = (function () {
+ function Super() {
+ this.type = syntax_1.Syntax.Super;
+ }
+ return Super;
+ }());
+ exports.Super = Super;
+ var SwitchCase = (function () {
+ function SwitchCase(test, consequent) {
+ this.type = syntax_1.Syntax.SwitchCase;
+ this.test = test;
+ this.consequent = consequent;
+ }
+ return SwitchCase;
+ }());
+ exports.SwitchCase = SwitchCase;
+ var SwitchStatement = (function () {
+ function SwitchStatement(discriminant, cases) {
+ this.type = syntax_1.Syntax.SwitchStatement;
+ this.discriminant = discriminant;
+ this.cases = cases;
+ }
+ return SwitchStatement;
+ }());
+ exports.SwitchStatement = SwitchStatement;
+ var TaggedTemplateExpression = (function () {
+ function TaggedTemplateExpression(tag, quasi) {
+ this.type = syntax_1.Syntax.TaggedTemplateExpression;
+ this.tag = tag;
+ this.quasi = quasi;
+ }
+ return TaggedTemplateExpression;
+ }());
+ exports.TaggedTemplateExpression = TaggedTemplateExpression;
+ var TemplateElement = (function () {
+ function TemplateElement(value, tail) {
+ this.type = syntax_1.Syntax.TemplateElement;
+ this.value = value;
+ this.tail = tail;
+ }
+ return TemplateElement;
+ }());
+ exports.TemplateElement = TemplateElement;
+ var TemplateLiteral = (function () {
+ function TemplateLiteral(quasis, expressions) {
+ this.type = syntax_1.Syntax.TemplateLiteral;
+ this.quasis = quasis;
+ this.expressions = expressions;
+ }
+ return TemplateLiteral;
+ }());
+ exports.TemplateLiteral = TemplateLiteral;
+ var ThisExpression = (function () {
+ function ThisExpression() {
+ this.type = syntax_1.Syntax.ThisExpression;
+ }
+ return ThisExpression;
+ }());
+ exports.ThisExpression = ThisExpression;
+ var ThrowStatement = (function () {
+ function ThrowStatement(argument) {
+ this.type = syntax_1.Syntax.ThrowStatement;
+ this.argument = argument;
+ }
+ return ThrowStatement;
+ }());
+ exports.ThrowStatement = ThrowStatement;
+ var TryStatement = (function () {
+ function TryStatement(block, handler, finalizer) {
+ this.type = syntax_1.Syntax.TryStatement;
+ this.block = block;
+ this.handler = handler;
+ this.finalizer = finalizer;
+ }
+ return TryStatement;
+ }());
+ exports.TryStatement = TryStatement;
+ var UnaryExpression = (function () {
+ function UnaryExpression(operator, argument) {
+ this.type = syntax_1.Syntax.UnaryExpression;
+ this.operator = operator;
+ this.argument = argument;
+ this.prefix = true;
+ }
+ return UnaryExpression;
+ }());
+ exports.UnaryExpression = UnaryExpression;
+ var UpdateExpression = (function () {
+ function UpdateExpression(operator, argument, prefix) {
+ this.type = syntax_1.Syntax.UpdateExpression;
+ this.operator = operator;
+ this.argument = argument;
+ this.prefix = prefix;
+ }
+ return UpdateExpression;
+ }());
+ exports.UpdateExpression = UpdateExpression;
+ var VariableDeclaration = (function () {
+ function VariableDeclaration(declarations, kind) {
+ this.type = syntax_1.Syntax.VariableDeclaration;
+ this.declarations = declarations;
+ this.kind = kind;
+ }
+ return VariableDeclaration;
+ }());
+ exports.VariableDeclaration = VariableDeclaration;
+ var VariableDeclarator = (function () {
+ function VariableDeclarator(id, init) {
+ this.type = syntax_1.Syntax.VariableDeclarator;
+ this.id = id;
+ this.init = init;
+ }
+ return VariableDeclarator;
+ }());
+ exports.VariableDeclarator = VariableDeclarator;
+ var WhileStatement = (function () {
+ function WhileStatement(test, body) {
+ this.type = syntax_1.Syntax.WhileStatement;
+ this.test = test;
+ this.body = body;
+ }
+ return WhileStatement;
+ }());
+ exports.WhileStatement = WhileStatement;
+ var WithStatement = (function () {
+ function WithStatement(object, body) {
+ this.type = syntax_1.Syntax.WithStatement;
+ this.object = object;
+ this.body = body;
+ }
+ return WithStatement;
+ }());
+ exports.WithStatement = WithStatement;
+ var YieldExpression = (function () {
+ function YieldExpression(argument, delegate) {
+ this.type = syntax_1.Syntax.YieldExpression;
+ this.argument = argument;
+ this.delegate = delegate;
+ }
+ return YieldExpression;
+ }());
+ exports.YieldExpression = YieldExpression;
+
+
+/***/ },
+/* 8 */
+/***/ function(module, exports, __webpack_require__) {
+
+ "use strict";
+ Object.defineProperty(exports, "__esModule", { value: true });
+ var assert_1 = __webpack_require__(9);
+ var error_handler_1 = __webpack_require__(10);
+ var messages_1 = __webpack_require__(11);
+ var Node = __webpack_require__(7);
+ var scanner_1 = __webpack_require__(12);
+ var syntax_1 = __webpack_require__(2);
+ var token_1 = __webpack_require__(13);
+ var ArrowParameterPlaceHolder = 'ArrowParameterPlaceHolder';
+ var Parser = (function () {
+ function Parser(code, options, delegate) {
+ if (options === void 0) { options = {}; }
+ this.config = {
+ range: (typeof options.range === 'boolean') && options.range,
+ loc: (typeof options.loc === 'boolean') && options.loc,
+ source: null,
+ tokens: (typeof options.tokens === 'boolean') && options.tokens,
+ comment: (typeof options.comment === 'boolean') && options.comment,
+ tolerant: (typeof options.tolerant === 'boolean') && options.tolerant
+ };
+ if (this.config.loc && options.source && options.source !== null) {
+ this.config.source = String(options.source);
+ }
+ this.delegate = delegate;
+ this.errorHandler = new error_handler_1.ErrorHandler();
+ this.errorHandler.tolerant = this.config.tolerant;
+ this.scanner = new scanner_1.Scanner(code, this.errorHandler);
+ this.scanner.trackComment = this.config.comment;
+ this.operatorPrecedence = {
+ ')': 0,
+ ';': 0,
+ ',': 0,
+ '=': 0,
+ ']': 0,
+ '||': 1,
+ '&&': 2,
+ '|': 3,
+ '^': 4,
+ '&': 5,
+ '==': 6,
+ '!=': 6,
+ '===': 6,
+ '!==': 6,
+ '<': 7,
+ '>': 7,
+ '<=': 7,
+ '>=': 7,
+ '<<': 8,
+ '>>': 8,
+ '>>>': 8,
+ '+': 9,
+ '-': 9,
+ '*': 11,
+ '/': 11,
+ '%': 11
+ };
+ this.lookahead = {
+ type: 2 /* EOF */,
+ value: '',
+ lineNumber: this.scanner.lineNumber,
+ lineStart: 0,
+ start: 0,
+ end: 0
+ };
+ this.hasLineTerminator = false;
+ this.context = {
+ isModule: false,
+ await: false,
+ allowIn: true,
+ allowStrictDirective: true,
+ allowYield: true,
+ firstCoverInitializedNameError: null,
+ isAssignmentTarget: false,
+ isBindingElement: false,
+ inFunctionBody: false,
+ inIteration: false,
+ inSwitch: false,
+ labelSet: {},
+ strict: false
+ };
+ this.tokens = [];
+ this.startMarker = {
+ index: 0,
+ line: this.scanner.lineNumber,
+ column: 0
+ };
+ this.lastMarker = {
+ index: 0,
+ line: this.scanner.lineNumber,
+ column: 0
+ };
+ this.nextToken();
+ this.lastMarker = {
+ index: this.scanner.index,
+ line: this.scanner.lineNumber,
+ column: this.scanner.index - this.scanner.lineStart
+ };
+ }
+ Parser.prototype.throwError = function (messageFormat) {
+ var values = [];
+ for (var _i = 1; _i < arguments.length; _i++) {
+ values[_i - 1] = arguments[_i];
+ }
+ var args = Array.prototype.slice.call(arguments, 1);
+ var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) {
+ assert_1.assert(idx < args.length, 'Message reference must be in range');
+ return args[idx];
+ });
+ var index = this.lastMarker.index;
+ var line = this.lastMarker.line;
+ var column = this.lastMarker.column + 1;
+ throw this.errorHandler.createError(index, line, column, msg);
+ };
+ Parser.prototype.tolerateError = function (messageFormat) {
+ var values = [];
+ for (var _i = 1; _i < arguments.length; _i++) {
+ values[_i - 1] = arguments[_i];
+ }
+ var args = Array.prototype.slice.call(arguments, 1);
+ var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) {
+ assert_1.assert(idx < args.length, 'Message reference must be in range');
+ return args[idx];
+ });
+ var index = this.lastMarker.index;
+ var line = this.scanner.lineNumber;
+ var column = this.lastMarker.column + 1;
+ this.errorHandler.tolerateError(index, line, column, msg);
+ };
+ // Throw an exception because of the token.
+ Parser.prototype.unexpectedTokenError = function (token, message) {
+ var msg = message || messages_1.Messages.UnexpectedToken;
+ var value;
+ if (token) {
+ if (!message) {
+ msg = (token.type === 2 /* EOF */) ? messages_1.Messages.UnexpectedEOS :
+ (token.type === 3 /* Identifier */) ? messages_1.Messages.UnexpectedIdentifier :
+ (token.type === 6 /* NumericLiteral */) ? messages_1.Messages.UnexpectedNumber :
+ (token.type === 8 /* StringLiteral */) ? messages_1.Messages.UnexpectedString :
+ (token.type === 10 /* Template */) ? messages_1.Messages.UnexpectedTemplate :
+ messages_1.Messages.UnexpectedToken;
+ if (token.type === 4 /* Keyword */) {
+ if (this.scanner.isFutureReservedWord(token.value)) {
+ msg = messages_1.Messages.UnexpectedReserved;
+ }
+ else if (this.context.strict && this.scanner.isStrictModeReservedWord(token.value)) {
+ msg = messages_1.Messages.StrictReservedWord;
+ }
+ }
+ }
+ value = token.value;
+ }
+ else {
+ value = 'ILLEGAL';
+ }
+ msg = msg.replace('%0', value);
+ if (token && typeof token.lineNumber === 'number') {
+ var index = token.start;
+ var line = token.lineNumber;
+ var lastMarkerLineStart = this.lastMarker.index - this.lastMarker.column;
+ var column = token.start - lastMarkerLineStart + 1;
+ return this.errorHandler.createError(index, line, column, msg);
+ }
+ else {
+ var index = this.lastMarker.index;
+ var line = this.lastMarker.line;
+ var column = this.lastMarker.column + 1;
+ return this.errorHandler.createError(index, line, column, msg);
+ }
+ };
+ Parser.prototype.throwUnexpectedToken = function (token, message) {
+ throw this.unexpectedTokenError(token, message);
+ };
+ Parser.prototype.tolerateUnexpectedToken = function (token, message) {
+ this.errorHandler.tolerate(this.unexpectedTokenError(token, message));
+ };
+ Parser.prototype.collectComments = function () {
+ if (!this.config.comment) {
+ this.scanner.scanComments();
+ }
+ else {
+ var comments = this.scanner.scanComments();
+ if (comments.length > 0 && this.delegate) {
+ for (var i = 0; i < comments.length; ++i) {
+ var e = comments[i];
+ var node = void 0;
+ node = {
+ type: e.multiLine ? 'BlockComment' : 'LineComment',
+ value: this.scanner.source.slice(e.slice[0], e.slice[1])
+ };
+ if (this.config.range) {
+ node.range = e.range;
+ }
+ if (this.config.loc) {
+ node.loc = e.loc;
+ }
+ var metadata = {
+ start: {
+ line: e.loc.start.line,
+ column: e.loc.start.column,
+ offset: e.range[0]
+ },
+ end: {
+ line: e.loc.end.line,
+ column: e.loc.end.column,
+ offset: e.range[1]
+ }
+ };
+ this.delegate(node, metadata);
+ }
+ }
+ }
+ };
+ // From internal representation to an external structure
+ Parser.prototype.getTokenRaw = function (token) {
+ return this.scanner.source.slice(token.start, token.end);
+ };
+ Parser.prototype.convertToken = function (token) {
+ var t = {
+ type: token_1.TokenName[token.type],
+ value: this.getTokenRaw(token)
+ };
+ if (this.config.range) {
+ t.range = [token.start, token.end];
+ }
+ if (this.config.loc) {
+ t.loc = {
+ start: {
+ line: this.startMarker.line,
+ column: this.startMarker.column
+ },
+ end: {
+ line: this.scanner.lineNumber,
+ column: this.scanner.index - this.scanner.lineStart
+ }
+ };
+ }
+ if (token.type === 9 /* RegularExpression */) {
+ var pattern = token.pattern;
+ var flags = token.flags;
+ t.regex = { pattern: pattern, flags: flags };
+ }
+ return t;
+ };
+ Parser.prototype.nextToken = function () {
+ var token = this.lookahead;
+ this.lastMarker.index = this.scanner.index;
+ this.lastMarker.line = this.scanner.lineNumber;
+ this.lastMarker.column = this.scanner.index - this.scanner.lineStart;
+ this.collectComments();
+ if (this.scanner.index !== this.startMarker.index) {
+ this.startMarker.index = this.scanner.index;
+ this.startMarker.line = this.scanner.lineNumber;
+ this.startMarker.column = this.scanner.index - this.scanner.lineStart;
+ }
+ var next = this.scanner.lex();
+ this.hasLineTerminator = (token.lineNumber !== next.lineNumber);
+ if (next && this.context.strict && next.type === 3 /* Identifier */) {
+ if (this.scanner.isStrictModeReservedWord(next.value)) {
+ next.type = 4 /* Keyword */;
+ }
+ }
+ this.lookahead = next;
+ if (this.config.tokens && next.type !== 2 /* EOF */) {
+ this.tokens.push(this.convertToken(next));
+ }
+ return token;
+ };
+ Parser.prototype.nextRegexToken = function () {
+ this.collectComments();
+ var token = this.scanner.scanRegExp();
+ if (this.config.tokens) {
+ // Pop the previous token, '/' or '/='
+ // This is added from the lookahead token.
+ this.tokens.pop();
+ this.tokens.push(this.convertToken(token));
+ }
+ // Prime the next lookahead.
+ this.lookahead = token;
+ this.nextToken();
+ return token;
+ };
+ Parser.prototype.createNode = function () {
+ return {
+ index: this.startMarker.index,
+ line: this.startMarker.line,
+ column: this.startMarker.column
+ };
+ };
+ Parser.prototype.startNode = function (token, lastLineStart) {
+ if (lastLineStart === void 0) { lastLineStart = 0; }
+ var column = token.start - token.lineStart;
+ var line = token.lineNumber;
+ if (column < 0) {
+ column += lastLineStart;
+ line--;
+ }
+ return {
+ index: token.start,
+ line: line,
+ column: column
+ };
+ };
+ Parser.prototype.finalize = function (marker, node) {
+ if (this.config.range) {
+ node.range = [marker.index, this.lastMarker.index];
+ }
+ if (this.config.loc) {
+ node.loc = {
+ start: {
+ line: marker.line,
+ column: marker.column,
+ },
+ end: {
+ line: this.lastMarker.line,
+ column: this.lastMarker.column
+ }
+ };
+ if (this.config.source) {
+ node.loc.source = this.config.source;
+ }
+ }
+ if (this.delegate) {
+ var metadata = {
+ start: {
+ line: marker.line,
+ column: marker.column,
+ offset: marker.index
+ },
+ end: {
+ line: this.lastMarker.line,
+ column: this.lastMarker.column,
+ offset: this.lastMarker.index
+ }
+ };
+ this.delegate(node, metadata);
+ }
+ return node;
+ };
+ // Expect the next token to match the specified punctuator.
+ // If not, an exception will be thrown.
+ Parser.prototype.expect = function (value) {
+ var token = this.nextToken();
+ if (token.type !== 7 /* Punctuator */ || token.value !== value) {
+ this.throwUnexpectedToken(token);
+ }
+ };
+ // Quietly expect a comma when in tolerant mode, otherwise delegates to expect().
+ Parser.prototype.expectCommaSeparator = function () {
+ if (this.config.tolerant) {
+ var token = this.lookahead;
+ if (token.type === 7 /* Punctuator */ && token.value === ',') {
+ this.nextToken();
+ }
+ else if (token.type === 7 /* Punctuator */ && token.value === ';') {
+ this.nextToken();
+ this.tolerateUnexpectedToken(token);
+ }
+ else {
+ this.tolerateUnexpectedToken(token, messages_1.Messages.UnexpectedToken);
+ }
+ }
+ else {
+ this.expect(',');
+ }
+ };
+ // Expect the next token to match the specified keyword.
+ // If not, an exception will be thrown.
+ Parser.prototype.expectKeyword = function (keyword) {
+ var token = this.nextToken();
+ if (token.type !== 4 /* Keyword */ || token.value !== keyword) {
+ this.throwUnexpectedToken(token);
+ }
+ };
+ // Return true if the next token matches the specified punctuator.
+ Parser.prototype.match = function (value) {
+ return this.lookahead.type === 7 /* Punctuator */ && this.lookahead.value === value;
+ };
+ // Return true if the next token matches the specified keyword
+ Parser.prototype.matchKeyword = function (keyword) {
+ return this.lookahead.type === 4 /* Keyword */ && this.lookahead.value === keyword;
+ };
+ // Return true if the next token matches the specified contextual keyword
+ // (where an identifier is sometimes a keyword depending on the context)
+ Parser.prototype.matchContextualKeyword = function (keyword) {
+ return this.lookahead.type === 3 /* Identifier */ && this.lookahead.value === keyword;
+ };
+ // Return true if the next token is an assignment operator
+ Parser.prototype.matchAssign = function () {
+ if (this.lookahead.type !== 7 /* Punctuator */) {
+ return false;
+ }
+ var op = this.lookahead.value;
+ return op === '=' ||
+ op === '*=' ||
+ op === '**=' ||
+ op === '/=' ||
+ op === '%=' ||
+ op === '+=' ||
+ op === '-=' ||
+ op === '<<=' ||
+ op === '>>=' ||
+ op === '>>>=' ||
+ op === '&=' ||
+ op === '^=' ||
+ op === '|=';
+ };
+ // Cover grammar support.
+ //
+ // When an assignment expression position starts with an left parenthesis, the determination of the type
+ // of the syntax is to be deferred arbitrarily long until the end of the parentheses pair (plus a lookahead)
+ // or the first comma. This situation also defers the determination of all the expressions nested in the pair.
+ //
+ // There are three productions that can be parsed in a parentheses pair that needs to be determined
+ // after the outermost pair is closed. They are:
+ //
+ // 1. AssignmentExpression
+ // 2. BindingElements
+ // 3. AssignmentTargets
+ //
+ // In order to avoid exponential backtracking, we use two flags to denote if the production can be
+ // binding element or assignment target.
+ //
+ // The three productions have the relationship:
+ //
+ // BindingElements ⊆ AssignmentTargets ⊆ AssignmentExpression
+ //
+ // with a single exception that CoverInitializedName when used directly in an Expression, generates
+ // an early error. Therefore, we need the third state, firstCoverInitializedNameError, to track the
+ // first usage of CoverInitializedName and report it when we reached the end of the parentheses pair.
+ //
+ // isolateCoverGrammar function runs the given parser function with a new cover grammar context, and it does not
+ // effect the current flags. This means the production the parser parses is only used as an expression. Therefore
+ // the CoverInitializedName check is conducted.
+ //
+ // inheritCoverGrammar function runs the given parse function with a new cover grammar context, and it propagates
+ // the flags outside of the parser. This means the production the parser parses is used as a part of a potential
+ // pattern. The CoverInitializedName check is deferred.
+ Parser.prototype.isolateCoverGrammar = function (parseFunction) {
+ var previousIsBindingElement = this.context.isBindingElement;
+ var previousIsAssignmentTarget = this.context.isAssignmentTarget;
+ var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError;
+ this.context.isBindingElement = true;
+ this.context.isAssignmentTarget = true;
+ this.context.firstCoverInitializedNameError = null;
+ var result = parseFunction.call(this);
+ if (this.context.firstCoverInitializedNameError !== null) {
+ this.throwUnexpectedToken(this.context.firstCoverInitializedNameError);
+ }
+ this.context.isBindingElement = previousIsBindingElement;
+ this.context.isAssignmentTarget = previousIsAssignmentTarget;
+ this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError;
+ return result;
+ };
+ Parser.prototype.inheritCoverGrammar = function (parseFunction) {
+ var previousIsBindingElement = this.context.isBindingElement;
+ var previousIsAssignmentTarget = this.context.isAssignmentTarget;
+ var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError;
+ this.context.isBindingElement = true;
+ this.context.isAssignmentTarget = true;
+ this.context.firstCoverInitializedNameError = null;
+ var result = parseFunction.call(this);
+ this.context.isBindingElement = this.context.isBindingElement && previousIsBindingElement;
+ this.context.isAssignmentTarget = this.context.isAssignmentTarget && previousIsAssignmentTarget;
+ this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError || this.context.firstCoverInitializedNameError;
+ return result;
+ };
+ Parser.prototype.consumeSemicolon = function () {
+ if (this.match(';')) {
+ this.nextToken();
+ }
+ else if (!this.hasLineTerminator) {
+ if (this.lookahead.type !== 2 /* EOF */ && !this.match('}')) {
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ this.lastMarker.index = this.startMarker.index;
+ this.lastMarker.line = this.startMarker.line;
+ this.lastMarker.column = this.startMarker.column;
+ }
+ };
+ // https://tc39.github.io/ecma262/#sec-primary-expression
+ Parser.prototype.parsePrimaryExpression = function () {
+ var node = this.createNode();
+ var expr;
+ var token, raw;
+ switch (this.lookahead.type) {
+ case 3 /* Identifier */:
+ if ((this.context.isModule || this.context.await) && this.lookahead.value === 'await') {
+ this.tolerateUnexpectedToken(this.lookahead);
+ }
+ expr = this.matchAsyncFunction() ? this.parseFunctionExpression() : this.finalize(node, new Node.Identifier(this.nextToken().value));
+ break;
+ case 6 /* NumericLiteral */:
+ case 8 /* StringLiteral */:
+ if (this.context.strict && this.lookahead.octal) {
+ this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.StrictOctalLiteral);
+ }
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ token = this.nextToken();
+ raw = this.getTokenRaw(token);
+ expr = this.finalize(node, new Node.Literal(token.value, raw));
+ break;
+ case 1 /* BooleanLiteral */:
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ token = this.nextToken();
+ raw = this.getTokenRaw(token);
+ expr = this.finalize(node, new Node.Literal(token.value === 'true', raw));
+ break;
+ case 5 /* NullLiteral */:
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ token = this.nextToken();
+ raw = this.getTokenRaw(token);
+ expr = this.finalize(node, new Node.Literal(null, raw));
+ break;
+ case 10 /* Template */:
+ expr = this.parseTemplateLiteral();
+ break;
+ case 7 /* Punctuator */:
+ switch (this.lookahead.value) {
+ case '(':
+ this.context.isBindingElement = false;
+ expr = this.inheritCoverGrammar(this.parseGroupExpression);
+ break;
+ case '[':
+ expr = this.inheritCoverGrammar(this.parseArrayInitializer);
+ break;
+ case '{':
+ expr = this.inheritCoverGrammar(this.parseObjectInitializer);
+ break;
+ case '/':
+ case '/=':
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ this.scanner.index = this.startMarker.index;
+ token = this.nextRegexToken();
+ raw = this.getTokenRaw(token);
+ expr = this.finalize(node, new Node.RegexLiteral(token.regex, raw, token.pattern, token.flags));
+ break;
+ default:
+ expr = this.throwUnexpectedToken(this.nextToken());
+ }
+ break;
+ case 4 /* Keyword */:
+ if (!this.context.strict && this.context.allowYield && this.matchKeyword('yield')) {
+ expr = this.parseIdentifierName();
+ }
+ else if (!this.context.strict && this.matchKeyword('let')) {
+ expr = this.finalize(node, new Node.Identifier(this.nextToken().value));
+ }
+ else {
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ if (this.matchKeyword('function')) {
+ expr = this.parseFunctionExpression();
+ }
+ else if (this.matchKeyword('this')) {
+ this.nextToken();
+ expr = this.finalize(node, new Node.ThisExpression());
+ }
+ else if (this.matchKeyword('class')) {
+ expr = this.parseClassExpression();
+ }
+ else {
+ expr = this.throwUnexpectedToken(this.nextToken());
+ }
+ }
+ break;
+ default:
+ expr = this.throwUnexpectedToken(this.nextToken());
+ }
+ return expr;
+ };
+ // https://tc39.github.io/ecma262/#sec-array-initializer
+ Parser.prototype.parseSpreadElement = function () {
+ var node = this.createNode();
+ this.expect('...');
+ var arg = this.inheritCoverGrammar(this.parseAssignmentExpression);
+ return this.finalize(node, new Node.SpreadElement(arg));
+ };
+ Parser.prototype.parseArrayInitializer = function () {
+ var node = this.createNode();
+ var elements = [];
+ this.expect('[');
+ while (!this.match(']')) {
+ if (this.match(',')) {
+ this.nextToken();
+ elements.push(null);
+ }
+ else if (this.match('...')) {
+ var element = this.parseSpreadElement();
+ if (!this.match(']')) {
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ this.expect(',');
+ }
+ elements.push(element);
+ }
+ else {
+ elements.push(this.inheritCoverGrammar(this.parseAssignmentExpression));
+ if (!this.match(']')) {
+ this.expect(',');
+ }
+ }
+ }
+ this.expect(']');
+ return this.finalize(node, new Node.ArrayExpression(elements));
+ };
+ // https://tc39.github.io/ecma262/#sec-object-initializer
+ Parser.prototype.parsePropertyMethod = function (params) {
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ var previousStrict = this.context.strict;
+ var previousAllowStrictDirective = this.context.allowStrictDirective;
+ this.context.allowStrictDirective = params.simple;
+ var body = this.isolateCoverGrammar(this.parseFunctionSourceElements);
+ if (this.context.strict && params.firstRestricted) {
+ this.tolerateUnexpectedToken(params.firstRestricted, params.message);
+ }
+ if (this.context.strict && params.stricted) {
+ this.tolerateUnexpectedToken(params.stricted, params.message);
+ }
+ this.context.strict = previousStrict;
+ this.context.allowStrictDirective = previousAllowStrictDirective;
+ return body;
+ };
+ Parser.prototype.parsePropertyMethodFunction = function () {
+ var isGenerator = false;
+ var node = this.createNode();
+ var previousAllowYield = this.context.allowYield;
+ this.context.allowYield = true;
+ var params = this.parseFormalParameters();
+ var method = this.parsePropertyMethod(params);
+ this.context.allowYield = previousAllowYield;
+ return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator));
+ };
+ Parser.prototype.parsePropertyMethodAsyncFunction = function () {
+ var node = this.createNode();
+ var previousAllowYield = this.context.allowYield;
+ var previousAwait = this.context.await;
+ this.context.allowYield = false;
+ this.context.await = true;
+ var params = this.parseFormalParameters();
+ var method = this.parsePropertyMethod(params);
+ this.context.allowYield = previousAllowYield;
+ this.context.await = previousAwait;
+ return this.finalize(node, new Node.AsyncFunctionExpression(null, params.params, method));
+ };
+ Parser.prototype.parseObjectPropertyKey = function () {
+ var node = this.createNode();
+ var token = this.nextToken();
+ var key;
+ switch (token.type) {
+ case 8 /* StringLiteral */:
+ case 6 /* NumericLiteral */:
+ if (this.context.strict && token.octal) {
+ this.tolerateUnexpectedToken(token, messages_1.Messages.StrictOctalLiteral);
+ }
+ var raw = this.getTokenRaw(token);
+ key = this.finalize(node, new Node.Literal(token.value, raw));
+ break;
+ case 3 /* Identifier */:
+ case 1 /* BooleanLiteral */:
+ case 5 /* NullLiteral */:
+ case 4 /* Keyword */:
+ key = this.finalize(node, new Node.Identifier(token.value));
+ break;
+ case 7 /* Punctuator */:
+ if (token.value === '[') {
+ key = this.isolateCoverGrammar(this.parseAssignmentExpression);
+ this.expect(']');
+ }
+ else {
+ key = this.throwUnexpectedToken(token);
+ }
+ break;
+ default:
+ key = this.throwUnexpectedToken(token);
+ }
+ return key;
+ };
+ Parser.prototype.isPropertyKey = function (key, value) {
+ return (key.type === syntax_1.Syntax.Identifier && key.name === value) ||
+ (key.type === syntax_1.Syntax.Literal && key.value === value);
+ };
+ Parser.prototype.parseObjectProperty = function (hasProto) {
+ var node = this.createNode();
+ var token = this.lookahead;
+ var kind;
+ var key = null;
+ var value = null;
+ var computed = false;
+ var method = false;
+ var shorthand = false;
+ var isAsync = false;
+ if (token.type === 3 /* Identifier */) {
+ var id = token.value;
+ this.nextToken();
+ computed = this.match('[');
+ isAsync = !this.hasLineTerminator && (id === 'async') &&
+ !this.match(':') && !this.match('(') && !this.match('*') && !this.match(',');
+ key = isAsync ? this.parseObjectPropertyKey() : this.finalize(node, new Node.Identifier(id));
+ }
+ else if (this.match('*')) {
+ this.nextToken();
+ }
+ else {
+ computed = this.match('[');
+ key = this.parseObjectPropertyKey();
+ }
+ var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead);
+ if (token.type === 3 /* Identifier */ && !isAsync && token.value === 'get' && lookaheadPropertyKey) {
+ kind = 'get';
+ computed = this.match('[');
+ key = this.parseObjectPropertyKey();
+ this.context.allowYield = false;
+ value = this.parseGetterMethod();
+ }
+ else if (token.type === 3 /* Identifier */ && !isAsync && token.value === 'set' && lookaheadPropertyKey) {
+ kind = 'set';
+ computed = this.match('[');
+ key = this.parseObjectPropertyKey();
+ value = this.parseSetterMethod();
+ }
+ else if (token.type === 7 /* Punctuator */ && token.value === '*' && lookaheadPropertyKey) {
+ kind = 'init';
+ computed = this.match('[');
+ key = this.parseObjectPropertyKey();
+ value = this.parseGeneratorMethod();
+ method = true;
+ }
+ else {
+ if (!key) {
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ kind = 'init';
+ if (this.match(':') && !isAsync) {
+ if (!computed && this.isPropertyKey(key, '__proto__')) {
+ if (hasProto.value) {
+ this.tolerateError(messages_1.Messages.DuplicateProtoProperty);
+ }
+ hasProto.value = true;
+ }
+ this.nextToken();
+ value = this.inheritCoverGrammar(this.parseAssignmentExpression);
+ }
+ else if (this.match('(')) {
+ value = isAsync ? this.parsePropertyMethodAsyncFunction() : this.parsePropertyMethodFunction();
+ method = true;
+ }
+ else if (token.type === 3 /* Identifier */) {
+ var id = this.finalize(node, new Node.Identifier(token.value));
+ if (this.match('=')) {
+ this.context.firstCoverInitializedNameError = this.lookahead;
+ this.nextToken();
+ shorthand = true;
+ var init = this.isolateCoverGrammar(this.parseAssignmentExpression);
+ value = this.finalize(node, new Node.AssignmentPattern(id, init));
+ }
+ else {
+ shorthand = true;
+ value = id;
+ }
+ }
+ else {
+ this.throwUnexpectedToken(this.nextToken());
+ }
+ }
+ return this.finalize(node, new Node.Property(kind, key, computed, value, method, shorthand));
+ };
+ Parser.prototype.parseObjectInitializer = function () {
+ var node = this.createNode();
+ this.expect('{');
+ var properties = [];
+ var hasProto = { value: false };
+ while (!this.match('}')) {
+ properties.push(this.parseObjectProperty(hasProto));
+ if (!this.match('}')) {
+ this.expectCommaSeparator();
+ }
+ }
+ this.expect('}');
+ return this.finalize(node, new Node.ObjectExpression(properties));
+ };
+ // https://tc39.github.io/ecma262/#sec-template-literals
+ Parser.prototype.parseTemplateHead = function () {
+ assert_1.assert(this.lookahead.head, 'Template literal must start with a template head');
+ var node = this.createNode();
+ var token = this.nextToken();
+ var raw = token.value;
+ var cooked = token.cooked;
+ return this.finalize(node, new Node.TemplateElement({ raw: raw, cooked: cooked }, token.tail));
+ };
+ Parser.prototype.parseTemplateElement = function () {
+ if (this.lookahead.type !== 10 /* Template */) {
+ this.throwUnexpectedToken();
+ }
+ var node = this.createNode();
+ var token = this.nextToken();
+ var raw = token.value;
+ var cooked = token.cooked;
+ return this.finalize(node, new Node.TemplateElement({ raw: raw, cooked: cooked }, token.tail));
+ };
+ Parser.prototype.parseTemplateLiteral = function () {
+ var node = this.createNode();
+ var expressions = [];
+ var quasis = [];
+ var quasi = this.parseTemplateHead();
+ quasis.push(quasi);
+ while (!quasi.tail) {
+ expressions.push(this.parseExpression());
+ quasi = this.parseTemplateElement();
+ quasis.push(quasi);
+ }
+ return this.finalize(node, new Node.TemplateLiteral(quasis, expressions));
+ };
+ // https://tc39.github.io/ecma262/#sec-grouping-operator
+ Parser.prototype.reinterpretExpressionAsPattern = function (expr) {
+ switch (expr.type) {
+ case syntax_1.Syntax.Identifier:
+ case syntax_1.Syntax.MemberExpression:
+ case syntax_1.Syntax.RestElement:
+ case syntax_1.Syntax.AssignmentPattern:
+ break;
+ case syntax_1.Syntax.SpreadElement:
+ expr.type = syntax_1.Syntax.RestElement;
+ this.reinterpretExpressionAsPattern(expr.argument);
+ break;
+ case syntax_1.Syntax.ArrayExpression:
+ expr.type = syntax_1.Syntax.ArrayPattern;
+ for (var i = 0; i < expr.elements.length; i++) {
+ if (expr.elements[i] !== null) {
+ this.reinterpretExpressionAsPattern(expr.elements[i]);
+ }
+ }
+ break;
+ case syntax_1.Syntax.ObjectExpression:
+ expr.type = syntax_1.Syntax.ObjectPattern;
+ for (var i = 0; i < expr.properties.length; i++) {
+ this.reinterpretExpressionAsPattern(expr.properties[i].value);
+ }
+ break;
+ case syntax_1.Syntax.AssignmentExpression:
+ expr.type = syntax_1.Syntax.AssignmentPattern;
+ delete expr.operator;
+ this.reinterpretExpressionAsPattern(expr.left);
+ break;
+ default:
+ // Allow other node type for tolerant parsing.
+ break;
+ }
+ };
+ Parser.prototype.parseGroupExpression = function () {
+ var expr;
+ this.expect('(');
+ if (this.match(')')) {
+ this.nextToken();
+ if (!this.match('=>')) {
+ this.expect('=>');
+ }
+ expr = {
+ type: ArrowParameterPlaceHolder,
+ params: [],
+ async: false
+ };
+ }
+ else {
+ var startToken = this.lookahead;
+ var params = [];
+ if (this.match('...')) {
+ expr = this.parseRestElement(params);
+ this.expect(')');
+ if (!this.match('=>')) {
+ this.expect('=>');
+ }
+ expr = {
+ type: ArrowParameterPlaceHolder,
+ params: [expr],
+ async: false
+ };
+ }
+ else {
+ var arrow = false;
+ this.context.isBindingElement = true;
+ expr = this.inheritCoverGrammar(this.parseAssignmentExpression);
+ if (this.match(',')) {
+ var expressions = [];
+ this.context.isAssignmentTarget = false;
+ expressions.push(expr);
+ while (this.lookahead.type !== 2 /* EOF */) {
+ if (!this.match(',')) {
+ break;
+ }
+ this.nextToken();
+ if (this.match(')')) {
+ this.nextToken();
+ for (var i = 0; i < expressions.length; i++) {
+ this.reinterpretExpressionAsPattern(expressions[i]);
+ }
+ arrow = true;
+ expr = {
+ type: ArrowParameterPlaceHolder,
+ params: expressions,
+ async: false
+ };
+ }
+ else if (this.match('...')) {
+ if (!this.context.isBindingElement) {
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ expressions.push(this.parseRestElement(params));
+ this.expect(')');
+ if (!this.match('=>')) {
+ this.expect('=>');
+ }
+ this.context.isBindingElement = false;
+ for (var i = 0; i < expressions.length; i++) {
+ this.reinterpretExpressionAsPattern(expressions[i]);
+ }
+ arrow = true;
+ expr = {
+ type: ArrowParameterPlaceHolder,
+ params: expressions,
+ async: false
+ };
+ }
+ else {
+ expressions.push(this.inheritCoverGrammar(this.parseAssignmentExpression));
+ }
+ if (arrow) {
+ break;
+ }
+ }
+ if (!arrow) {
+ expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions));
+ }
+ }
+ if (!arrow) {
+ this.expect(')');
+ if (this.match('=>')) {
+ if (expr.type === syntax_1.Syntax.Identifier && expr.name === 'yield') {
+ arrow = true;
+ expr = {
+ type: ArrowParameterPlaceHolder,
+ params: [expr],
+ async: false
+ };
+ }
+ if (!arrow) {
+ if (!this.context.isBindingElement) {
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ if (expr.type === syntax_1.Syntax.SequenceExpression) {
+ for (var i = 0; i < expr.expressions.length; i++) {
+ this.reinterpretExpressionAsPattern(expr.expressions[i]);
+ }
+ }
+ else {
+ this.reinterpretExpressionAsPattern(expr);
+ }
+ var parameters = (expr.type === syntax_1.Syntax.SequenceExpression ? expr.expressions : [expr]);
+ expr = {
+ type: ArrowParameterPlaceHolder,
+ params: parameters,
+ async: false
+ };
+ }
+ }
+ this.context.isBindingElement = false;
+ }
+ }
+ }
+ return expr;
+ };
+ // https://tc39.github.io/ecma262/#sec-left-hand-side-expressions
+ Parser.prototype.parseArguments = function () {
+ this.expect('(');
+ var args = [];
+ if (!this.match(')')) {
+ while (true) {
+ var expr = this.match('...') ? this.parseSpreadElement() :
+ this.isolateCoverGrammar(this.parseAssignmentExpression);
+ args.push(expr);
+ if (this.match(')')) {
+ break;
+ }
+ this.expectCommaSeparator();
+ if (this.match(')')) {
+ break;
+ }
+ }
+ }
+ this.expect(')');
+ return args;
+ };
+ Parser.prototype.isIdentifierName = function (token) {
+ return token.type === 3 /* Identifier */ ||
+ token.type === 4 /* Keyword */ ||
+ token.type === 1 /* BooleanLiteral */ ||
+ token.type === 5 /* NullLiteral */;
+ };
+ Parser.prototype.parseIdentifierName = function () {
+ var node = this.createNode();
+ var token = this.nextToken();
+ if (!this.isIdentifierName(token)) {
+ this.throwUnexpectedToken(token);
+ }
+ return this.finalize(node, new Node.Identifier(token.value));
+ };
+ Parser.prototype.parseNewExpression = function () {
+ var node = this.createNode();
+ var id = this.parseIdentifierName();
+ assert_1.assert(id.name === 'new', 'New expression must start with `new`');
+ var expr;
+ if (this.match('.')) {
+ this.nextToken();
+ if (this.lookahead.type === 3 /* Identifier */ && this.context.inFunctionBody && this.lookahead.value === 'target') {
+ var property = this.parseIdentifierName();
+ expr = new Node.MetaProperty(id, property);
+ }
+ else {
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ }
+ else {
+ var callee = this.isolateCoverGrammar(this.parseLeftHandSideExpression);
+ var args = this.match('(') ? this.parseArguments() : [];
+ expr = new Node.NewExpression(callee, args);
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ }
+ return this.finalize(node, expr);
+ };
+ Parser.prototype.parseAsyncArgument = function () {
+ var arg = this.parseAssignmentExpression();
+ this.context.firstCoverInitializedNameError = null;
+ return arg;
+ };
+ Parser.prototype.parseAsyncArguments = function () {
+ this.expect('(');
+ var args = [];
+ if (!this.match(')')) {
+ while (true) {
+ var expr = this.match('...') ? this.parseSpreadElement() :
+ this.isolateCoverGrammar(this.parseAsyncArgument);
+ args.push(expr);
+ if (this.match(')')) {
+ break;
+ }
+ this.expectCommaSeparator();
+ if (this.match(')')) {
+ break;
+ }
+ }
+ }
+ this.expect(')');
+ return args;
+ };
+ Parser.prototype.parseLeftHandSideExpressionAllowCall = function () {
+ var startToken = this.lookahead;
+ var maybeAsync = this.matchContextualKeyword('async');
+ var previousAllowIn = this.context.allowIn;
+ this.context.allowIn = true;
+ var expr;
+ if (this.matchKeyword('super') && this.context.inFunctionBody) {
+ expr = this.createNode();
+ this.nextToken();
+ expr = this.finalize(expr, new Node.Super());
+ if (!this.match('(') && !this.match('.') && !this.match('[')) {
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ }
+ else {
+ expr = this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression);
+ }
+ while (true) {
+ if (this.match('.')) {
+ this.context.isBindingElement = false;
+ this.context.isAssignmentTarget = true;
+ this.expect('.');
+ var property = this.parseIdentifierName();
+ expr = this.finalize(this.startNode(startToken), new Node.StaticMemberExpression(expr, property));
+ }
+ else if (this.match('(')) {
+ var asyncArrow = maybeAsync && (startToken.lineNumber === this.lookahead.lineNumber);
+ this.context.isBindingElement = false;
+ this.context.isAssignmentTarget = false;
+ var args = asyncArrow ? this.parseAsyncArguments() : this.parseArguments();
+ expr = this.finalize(this.startNode(startToken), new Node.CallExpression(expr, args));
+ if (asyncArrow && this.match('=>')) {
+ for (var i = 0; i < args.length; ++i) {
+ this.reinterpretExpressionAsPattern(args[i]);
+ }
+ expr = {
+ type: ArrowParameterPlaceHolder,
+ params: args,
+ async: true
+ };
+ }
+ }
+ else if (this.match('[')) {
+ this.context.isBindingElement = false;
+ this.context.isAssignmentTarget = true;
+ this.expect('[');
+ var property = this.isolateCoverGrammar(this.parseExpression);
+ this.expect(']');
+ expr = this.finalize(this.startNode(startToken), new Node.ComputedMemberExpression(expr, property));
+ }
+ else if (this.lookahead.type === 10 /* Template */ && this.lookahead.head) {
+ var quasi = this.parseTemplateLiteral();
+ expr = this.finalize(this.startNode(startToken), new Node.TaggedTemplateExpression(expr, quasi));
+ }
+ else {
+ break;
+ }
+ }
+ this.context.allowIn = previousAllowIn;
+ return expr;
+ };
+ Parser.prototype.parseSuper = function () {
+ var node = this.createNode();
+ this.expectKeyword('super');
+ if (!this.match('[') && !this.match('.')) {
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ return this.finalize(node, new Node.Super());
+ };
+ Parser.prototype.parseLeftHandSideExpression = function () {
+ assert_1.assert(this.context.allowIn, 'callee of new expression always allow in keyword.');
+ var node = this.startNode(this.lookahead);
+ var expr = (this.matchKeyword('super') && this.context.inFunctionBody) ? this.parseSuper() :
+ this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression);
+ while (true) {
+ if (this.match('[')) {
+ this.context.isBindingElement = false;
+ this.context.isAssignmentTarget = true;
+ this.expect('[');
+ var property = this.isolateCoverGrammar(this.parseExpression);
+ this.expect(']');
+ expr = this.finalize(node, new Node.ComputedMemberExpression(expr, property));
+ }
+ else if (this.match('.')) {
+ this.context.isBindingElement = false;
+ this.context.isAssignmentTarget = true;
+ this.expect('.');
+ var property = this.parseIdentifierName();
+ expr = this.finalize(node, new Node.StaticMemberExpression(expr, property));
+ }
+ else if (this.lookahead.type === 10 /* Template */ && this.lookahead.head) {
+ var quasi = this.parseTemplateLiteral();
+ expr = this.finalize(node, new Node.TaggedTemplateExpression(expr, quasi));
+ }
+ else {
+ break;
+ }
+ }
+ return expr;
+ };
+ // https://tc39.github.io/ecma262/#sec-update-expressions
+ Parser.prototype.parseUpdateExpression = function () {
+ var expr;
+ var startToken = this.lookahead;
+ if (this.match('++') || this.match('--')) {
+ var node = this.startNode(startToken);
+ var token = this.nextToken();
+ expr = this.inheritCoverGrammar(this.parseUnaryExpression);
+ if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) {
+ this.tolerateError(messages_1.Messages.StrictLHSPrefix);
+ }
+ if (!this.context.isAssignmentTarget) {
+ this.tolerateError(messages_1.Messages.InvalidLHSInAssignment);
+ }
+ var prefix = true;
+ expr = this.finalize(node, new Node.UpdateExpression(token.value, expr, prefix));
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ }
+ else {
+ expr = this.inheritCoverGrammar(this.parseLeftHandSideExpressionAllowCall);
+ if (!this.hasLineTerminator && this.lookahead.type === 7 /* Punctuator */) {
+ if (this.match('++') || this.match('--')) {
+ if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) {
+ this.tolerateError(messages_1.Messages.StrictLHSPostfix);
+ }
+ if (!this.context.isAssignmentTarget) {
+ this.tolerateError(messages_1.Messages.InvalidLHSInAssignment);
+ }
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ var operator = this.nextToken().value;
+ var prefix = false;
+ expr = this.finalize(this.startNode(startToken), new Node.UpdateExpression(operator, expr, prefix));
+ }
+ }
+ }
+ return expr;
+ };
+ // https://tc39.github.io/ecma262/#sec-unary-operators
+ Parser.prototype.parseAwaitExpression = function () {
+ var node = this.createNode();
+ this.nextToken();
+ var argument = this.parseUnaryExpression();
+ return this.finalize(node, new Node.AwaitExpression(argument));
+ };
+ Parser.prototype.parseUnaryExpression = function () {
+ var expr;
+ if (this.match('+') || this.match('-') || this.match('~') || this.match('!') ||
+ this.matchKeyword('delete') || this.matchKeyword('void') || this.matchKeyword('typeof')) {
+ var node = this.startNode(this.lookahead);
+ var token = this.nextToken();
+ expr = this.inheritCoverGrammar(this.parseUnaryExpression);
+ expr = this.finalize(node, new Node.UnaryExpression(token.value, expr));
+ if (this.context.strict && expr.operator === 'delete' && expr.argument.type === syntax_1.Syntax.Identifier) {
+ this.tolerateError(messages_1.Messages.StrictDelete);
+ }
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ }
+ else if (this.context.await && this.matchContextualKeyword('await')) {
+ expr = this.parseAwaitExpression();
+ }
+ else {
+ expr = this.parseUpdateExpression();
+ }
+ return expr;
+ };
+ Parser.prototype.parseExponentiationExpression = function () {
+ var startToken = this.lookahead;
+ var expr = this.inheritCoverGrammar(this.parseUnaryExpression);
+ if (expr.type !== syntax_1.Syntax.UnaryExpression && this.match('**')) {
+ this.nextToken();
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ var left = expr;
+ var right = this.isolateCoverGrammar(this.parseExponentiationExpression);
+ expr = this.finalize(this.startNode(startToken), new Node.BinaryExpression('**', left, right));
+ }
+ return expr;
+ };
+ // https://tc39.github.io/ecma262/#sec-exp-operator
+ // https://tc39.github.io/ecma262/#sec-multiplicative-operators
+ // https://tc39.github.io/ecma262/#sec-additive-operators
+ // https://tc39.github.io/ecma262/#sec-bitwise-shift-operators
+ // https://tc39.github.io/ecma262/#sec-relational-operators
+ // https://tc39.github.io/ecma262/#sec-equality-operators
+ // https://tc39.github.io/ecma262/#sec-binary-bitwise-operators
+ // https://tc39.github.io/ecma262/#sec-binary-logical-operators
+ Parser.prototype.binaryPrecedence = function (token) {
+ var op = token.value;
+ var precedence;
+ if (token.type === 7 /* Punctuator */) {
+ precedence = this.operatorPrecedence[op] || 0;
+ }
+ else if (token.type === 4 /* Keyword */) {
+ precedence = (op === 'instanceof' || (this.context.allowIn && op === 'in')) ? 7 : 0;
+ }
+ else {
+ precedence = 0;
+ }
+ return precedence;
+ };
+ Parser.prototype.parseBinaryExpression = function () {
+ var startToken = this.lookahead;
+ var expr = this.inheritCoverGrammar(this.parseExponentiationExpression);
+ var token = this.lookahead;
+ var prec = this.binaryPrecedence(token);
+ if (prec > 0) {
+ this.nextToken();
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ var markers = [startToken, this.lookahead];
+ var left = expr;
+ var right = this.isolateCoverGrammar(this.parseExponentiationExpression);
+ var stack = [left, token.value, right];
+ var precedences = [prec];
+ while (true) {
+ prec = this.binaryPrecedence(this.lookahead);
+ if (prec <= 0) {
+ break;
+ }
+ // Reduce: make a binary expression from the three topmost entries.
+ while ((stack.length > 2) && (prec <= precedences[precedences.length - 1])) {
+ right = stack.pop();
+ var operator = stack.pop();
+ precedences.pop();
+ left = stack.pop();
+ markers.pop();
+ var node = this.startNode(markers[markers.length - 1]);
+ stack.push(this.finalize(node, new Node.BinaryExpression(operator, left, right)));
+ }
+ // Shift.
+ stack.push(this.nextToken().value);
+ precedences.push(prec);
+ markers.push(this.lookahead);
+ stack.push(this.isolateCoverGrammar(this.parseExponentiationExpression));
+ }
+ // Final reduce to clean-up the stack.
+ var i = stack.length - 1;
+ expr = stack[i];
+ var lastMarker = markers.pop();
+ while (i > 1) {
+ var marker = markers.pop();
+ var lastLineStart = lastMarker && lastMarker.lineStart;
+ var node = this.startNode(marker, lastLineStart);
+ var operator = stack[i - 1];
+ expr = this.finalize(node, new Node.BinaryExpression(operator, stack[i - 2], expr));
+ i -= 2;
+ lastMarker = marker;
+ }
+ }
+ return expr;
+ };
+ // https://tc39.github.io/ecma262/#sec-conditional-operator
+ Parser.prototype.parseConditionalExpression = function () {
+ var startToken = this.lookahead;
+ var expr = this.inheritCoverGrammar(this.parseBinaryExpression);
+ if (this.match('?')) {
+ this.nextToken();
+ var previousAllowIn = this.context.allowIn;
+ this.context.allowIn = true;
+ var consequent = this.isolateCoverGrammar(this.parseAssignmentExpression);
+ this.context.allowIn = previousAllowIn;
+ this.expect(':');
+ var alternate = this.isolateCoverGrammar(this.parseAssignmentExpression);
+ expr = this.finalize(this.startNode(startToken), new Node.ConditionalExpression(expr, consequent, alternate));
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ }
+ return expr;
+ };
+ // https://tc39.github.io/ecma262/#sec-assignment-operators
+ Parser.prototype.checkPatternParam = function (options, param) {
+ switch (param.type) {
+ case syntax_1.Syntax.Identifier:
+ this.validateParam(options, param, param.name);
+ break;
+ case syntax_1.Syntax.RestElement:
+ this.checkPatternParam(options, param.argument);
+ break;
+ case syntax_1.Syntax.AssignmentPattern:
+ this.checkPatternParam(options, param.left);
+ break;
+ case syntax_1.Syntax.ArrayPattern:
+ for (var i = 0; i < param.elements.length; i++) {
+ if (param.elements[i] !== null) {
+ this.checkPatternParam(options, param.elements[i]);
+ }
+ }
+ break;
+ case syntax_1.Syntax.ObjectPattern:
+ for (var i = 0; i < param.properties.length; i++) {
+ this.checkPatternParam(options, param.properties[i].value);
+ }
+ break;
+ default:
+ break;
+ }
+ options.simple = options.simple && (param instanceof Node.Identifier);
+ };
+ Parser.prototype.reinterpretAsCoverFormalsList = function (expr) {
+ var params = [expr];
+ var options;
+ var asyncArrow = false;
+ switch (expr.type) {
+ case syntax_1.Syntax.Identifier:
+ break;
+ case ArrowParameterPlaceHolder:
+ params = expr.params;
+ asyncArrow = expr.async;
+ break;
+ default:
+ return null;
+ }
+ options = {
+ simple: true,
+ paramSet: {}
+ };
+ for (var i = 0; i < params.length; ++i) {
+ var param = params[i];
+ if (param.type === syntax_1.Syntax.AssignmentPattern) {
+ if (param.right.type === syntax_1.Syntax.YieldExpression) {
+ if (param.right.argument) {
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ param.right.type = syntax_1.Syntax.Identifier;
+ param.right.name = 'yield';
+ delete param.right.argument;
+ delete param.right.delegate;
+ }
+ }
+ else if (asyncArrow && param.type === syntax_1.Syntax.Identifier && param.name === 'await') {
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ this.checkPatternParam(options, param);
+ params[i] = param;
+ }
+ if (this.context.strict || !this.context.allowYield) {
+ for (var i = 0; i < params.length; ++i) {
+ var param = params[i];
+ if (param.type === syntax_1.Syntax.YieldExpression) {
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ }
+ }
+ if (options.message === messages_1.Messages.StrictParamDupe) {
+ var token = this.context.strict ? options.stricted : options.firstRestricted;
+ this.throwUnexpectedToken(token, options.message);
+ }
+ return {
+ simple: options.simple,
+ params: params,
+ stricted: options.stricted,
+ firstRestricted: options.firstRestricted,
+ message: options.message
+ };
+ };
+ Parser.prototype.parseAssignmentExpression = function () {
+ var expr;
+ if (!this.context.allowYield && this.matchKeyword('yield')) {
+ expr = this.parseYieldExpression();
+ }
+ else {
+ var startToken = this.lookahead;
+ var token = startToken;
+ expr = this.parseConditionalExpression();
+ if (token.type === 3 /* Identifier */ && (token.lineNumber === this.lookahead.lineNumber) && token.value === 'async') {
+ if (this.lookahead.type === 3 /* Identifier */ || this.matchKeyword('yield')) {
+ var arg = this.parsePrimaryExpression();
+ this.reinterpretExpressionAsPattern(arg);
+ expr = {
+ type: ArrowParameterPlaceHolder,
+ params: [arg],
+ async: true
+ };
+ }
+ }
+ if (expr.type === ArrowParameterPlaceHolder || this.match('=>')) {
+ // https://tc39.github.io/ecma262/#sec-arrow-function-definitions
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ var isAsync = expr.async;
+ var list = this.reinterpretAsCoverFormalsList(expr);
+ if (list) {
+ if (this.hasLineTerminator) {
+ this.tolerateUnexpectedToken(this.lookahead);
+ }
+ this.context.firstCoverInitializedNameError = null;
+ var previousStrict = this.context.strict;
+ var previousAllowStrictDirective = this.context.allowStrictDirective;
+ this.context.allowStrictDirective = list.simple;
+ var previousAllowYield = this.context.allowYield;
+ var previousAwait = this.context.await;
+ this.context.allowYield = true;
+ this.context.await = isAsync;
+ var node = this.startNode(startToken);
+ this.expect('=>');
+ var body = void 0;
+ if (this.match('{')) {
+ var previousAllowIn = this.context.allowIn;
+ this.context.allowIn = true;
+ body = this.parseFunctionSourceElements();
+ this.context.allowIn = previousAllowIn;
+ }
+ else {
+ body = this.isolateCoverGrammar(this.parseAssignmentExpression);
+ }
+ var expression = body.type !== syntax_1.Syntax.BlockStatement;
+ if (this.context.strict && list.firstRestricted) {
+ this.throwUnexpectedToken(list.firstRestricted, list.message);
+ }
+ if (this.context.strict && list.stricted) {
+ this.tolerateUnexpectedToken(list.stricted, list.message);
+ }
+ expr = isAsync ? this.finalize(node, new Node.AsyncArrowFunctionExpression(list.params, body, expression)) :
+ this.finalize(node, new Node.ArrowFunctionExpression(list.params, body, expression));
+ this.context.strict = previousStrict;
+ this.context.allowStrictDirective = previousAllowStrictDirective;
+ this.context.allowYield = previousAllowYield;
+ this.context.await = previousAwait;
+ }
+ }
+ else {
+ if (this.matchAssign()) {
+ if (!this.context.isAssignmentTarget) {
+ this.tolerateError(messages_1.Messages.InvalidLHSInAssignment);
+ }
+ if (this.context.strict && expr.type === syntax_1.Syntax.Identifier) {
+ var id = expr;
+ if (this.scanner.isRestrictedWord(id.name)) {
+ this.tolerateUnexpectedToken(token, messages_1.Messages.StrictLHSAssignment);
+ }
+ if (this.scanner.isStrictModeReservedWord(id.name)) {
+ this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord);
+ }
+ }
+ if (!this.match('=')) {
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ }
+ else {
+ this.reinterpretExpressionAsPattern(expr);
+ }
+ token = this.nextToken();
+ var operator = token.value;
+ var right = this.isolateCoverGrammar(this.parseAssignmentExpression);
+ expr = this.finalize(this.startNode(startToken), new Node.AssignmentExpression(operator, expr, right));
+ this.context.firstCoverInitializedNameError = null;
+ }
+ }
+ }
+ return expr;
+ };
+ // https://tc39.github.io/ecma262/#sec-comma-operator
+ Parser.prototype.parseExpression = function () {
+ var startToken = this.lookahead;
+ var expr = this.isolateCoverGrammar(this.parseAssignmentExpression);
+ if (this.match(',')) {
+ var expressions = [];
+ expressions.push(expr);
+ while (this.lookahead.type !== 2 /* EOF */) {
+ if (!this.match(',')) {
+ break;
+ }
+ this.nextToken();
+ expressions.push(this.isolateCoverGrammar(this.parseAssignmentExpression));
+ }
+ expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions));
+ }
+ return expr;
+ };
+ // https://tc39.github.io/ecma262/#sec-block
+ Parser.prototype.parseStatementListItem = function () {
+ var statement;
+ this.context.isAssignmentTarget = true;
+ this.context.isBindingElement = true;
+ if (this.lookahead.type === 4 /* Keyword */) {
+ switch (this.lookahead.value) {
+ case 'export':
+ if (!this.context.isModule) {
+ this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalExportDeclaration);
+ }
+ statement = this.parseExportDeclaration();
+ break;
+ case 'import':
+ if (!this.context.isModule) {
+ this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalImportDeclaration);
+ }
+ statement = this.parseImportDeclaration();
+ break;
+ case 'const':
+ statement = this.parseLexicalDeclaration({ inFor: false });
+ break;
+ case 'function':
+ statement = this.parseFunctionDeclaration();
+ break;
+ case 'class':
+ statement = this.parseClassDeclaration();
+ break;
+ case 'let':
+ statement = this.isLexicalDeclaration() ? this.parseLexicalDeclaration({ inFor: false }) : this.parseStatement();
+ break;
+ default:
+ statement = this.parseStatement();
+ break;
+ }
+ }
+ else {
+ statement = this.parseStatement();
+ }
+ return statement;
+ };
+ Parser.prototype.parseBlock = function () {
+ var node = this.createNode();
+ this.expect('{');
+ var block = [];
+ while (true) {
+ if (this.match('}')) {
+ break;
+ }
+ block.push(this.parseStatementListItem());
+ }
+ this.expect('}');
+ return this.finalize(node, new Node.BlockStatement(block));
+ };
+ // https://tc39.github.io/ecma262/#sec-let-and-const-declarations
+ Parser.prototype.parseLexicalBinding = function (kind, options) {
+ var node = this.createNode();
+ var params = [];
+ var id = this.parsePattern(params, kind);
+ if (this.context.strict && id.type === syntax_1.Syntax.Identifier) {
+ if (this.scanner.isRestrictedWord(id.name)) {
+ this.tolerateError(messages_1.Messages.StrictVarName);
+ }
+ }
+ var init = null;
+ if (kind === 'const') {
+ if (!this.matchKeyword('in') && !this.matchContextualKeyword('of')) {
+ if (this.match('=')) {
+ this.nextToken();
+ init = this.isolateCoverGrammar(this.parseAssignmentExpression);
+ }
+ else {
+ this.throwError(messages_1.Messages.DeclarationMissingInitializer, 'const');
+ }
+ }
+ }
+ else if ((!options.inFor && id.type !== syntax_1.Syntax.Identifier) || this.match('=')) {
+ this.expect('=');
+ init = this.isolateCoverGrammar(this.parseAssignmentExpression);
+ }
+ return this.finalize(node, new Node.VariableDeclarator(id, init));
+ };
+ Parser.prototype.parseBindingList = function (kind, options) {
+ var list = [this.parseLexicalBinding(kind, options)];
+ while (this.match(',')) {
+ this.nextToken();
+ list.push(this.parseLexicalBinding(kind, options));
+ }
+ return list;
+ };
+ Parser.prototype.isLexicalDeclaration = function () {
+ var state = this.scanner.saveState();
+ this.scanner.scanComments();
+ var next = this.scanner.lex();
+ this.scanner.restoreState(state);
+ return (next.type === 3 /* Identifier */) ||
+ (next.type === 7 /* Punctuator */ && next.value === '[') ||
+ (next.type === 7 /* Punctuator */ && next.value === '{') ||
+ (next.type === 4 /* Keyword */ && next.value === 'let') ||
+ (next.type === 4 /* Keyword */ && next.value === 'yield');
+ };
+ Parser.prototype.parseLexicalDeclaration = function (options) {
+ var node = this.createNode();
+ var kind = this.nextToken().value;
+ assert_1.assert(kind === 'let' || kind === 'const', 'Lexical declaration must be either let or const');
+ var declarations = this.parseBindingList(kind, options);
+ this.consumeSemicolon();
+ return this.finalize(node, new Node.VariableDeclaration(declarations, kind));
+ };
+ // https://tc39.github.io/ecma262/#sec-destructuring-binding-patterns
+ Parser.prototype.parseBindingRestElement = function (params, kind) {
+ var node = this.createNode();
+ this.expect('...');
+ var arg = this.parsePattern(params, kind);
+ return this.finalize(node, new Node.RestElement(arg));
+ };
+ Parser.prototype.parseArrayPattern = function (params, kind) {
+ var node = this.createNode();
+ this.expect('[');
+ var elements = [];
+ while (!this.match(']')) {
+ if (this.match(',')) {
+ this.nextToken();
+ elements.push(null);
+ }
+ else {
+ if (this.match('...')) {
+ elements.push(this.parseBindingRestElement(params, kind));
+ break;
+ }
+ else {
+ elements.push(this.parsePatternWithDefault(params, kind));
+ }
+ if (!this.match(']')) {
+ this.expect(',');
+ }
+ }
+ }
+ this.expect(']');
+ return this.finalize(node, new Node.ArrayPattern(elements));
+ };
+ Parser.prototype.parsePropertyPattern = function (params, kind) {
+ var node = this.createNode();
+ var computed = false;
+ var shorthand = false;
+ var method = false;
+ var key;
+ var value;
+ if (this.lookahead.type === 3 /* Identifier */) {
+ var keyToken = this.lookahead;
+ key = this.parseVariableIdentifier();
+ var init = this.finalize(node, new Node.Identifier(keyToken.value));
+ if (this.match('=')) {
+ params.push(keyToken);
+ shorthand = true;
+ this.nextToken();
+ var expr = this.parseAssignmentExpression();
+ value = this.finalize(this.startNode(keyToken), new Node.AssignmentPattern(init, expr));
+ }
+ else if (!this.match(':')) {
+ params.push(keyToken);
+ shorthand = true;
+ value = init;
+ }
+ else {
+ this.expect(':');
+ value = this.parsePatternWithDefault(params, kind);
+ }
+ }
+ else {
+ computed = this.match('[');
+ key = this.parseObjectPropertyKey();
+ this.expect(':');
+ value = this.parsePatternWithDefault(params, kind);
+ }
+ return this.finalize(node, new Node.Property('init', key, computed, value, method, shorthand));
+ };
+ Parser.prototype.parseObjectPattern = function (params, kind) {
+ var node = this.createNode();
+ var properties = [];
+ this.expect('{');
+ while (!this.match('}')) {
+ properties.push(this.parsePropertyPattern(params, kind));
+ if (!this.match('}')) {
+ this.expect(',');
+ }
+ }
+ this.expect('}');
+ return this.finalize(node, new Node.ObjectPattern(properties));
+ };
+ Parser.prototype.parsePattern = function (params, kind) {
+ var pattern;
+ if (this.match('[')) {
+ pattern = this.parseArrayPattern(params, kind);
+ }
+ else if (this.match('{')) {
+ pattern = this.parseObjectPattern(params, kind);
+ }
+ else {
+ if (this.matchKeyword('let') && (kind === 'const' || kind === 'let')) {
+ this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.LetInLexicalBinding);
+ }
+ params.push(this.lookahead);
+ pattern = this.parseVariableIdentifier(kind);
+ }
+ return pattern;
+ };
+ Parser.prototype.parsePatternWithDefault = function (params, kind) {
+ var startToken = this.lookahead;
+ var pattern = this.parsePattern(params, kind);
+ if (this.match('=')) {
+ this.nextToken();
+ var previousAllowYield = this.context.allowYield;
+ this.context.allowYield = true;
+ var right = this.isolateCoverGrammar(this.parseAssignmentExpression);
+ this.context.allowYield = previousAllowYield;
+ pattern = this.finalize(this.startNode(startToken), new Node.AssignmentPattern(pattern, right));
+ }
+ return pattern;
+ };
+ // https://tc39.github.io/ecma262/#sec-variable-statement
+ Parser.prototype.parseVariableIdentifier = function (kind) {
+ var node = this.createNode();
+ var token = this.nextToken();
+ if (token.type === 4 /* Keyword */ && token.value === 'yield') {
+ if (this.context.strict) {
+ this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord);
+ }
+ else if (!this.context.allowYield) {
+ this.throwUnexpectedToken(token);
+ }
+ }
+ else if (token.type !== 3 /* Identifier */) {
+ if (this.context.strict && token.type === 4 /* Keyword */ && this.scanner.isStrictModeReservedWord(token.value)) {
+ this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord);
+ }
+ else {
+ if (this.context.strict || token.value !== 'let' || kind !== 'var') {
+ this.throwUnexpectedToken(token);
+ }
+ }
+ }
+ else if ((this.context.isModule || this.context.await) && token.type === 3 /* Identifier */ && token.value === 'await') {
+ this.tolerateUnexpectedToken(token);
+ }
+ return this.finalize(node, new Node.Identifier(token.value));
+ };
+ Parser.prototype.parseVariableDeclaration = function (options) {
+ var node = this.createNode();
+ var params = [];
+ var id = this.parsePattern(params, 'var');
+ if (this.context.strict && id.type === syntax_1.Syntax.Identifier) {
+ if (this.scanner.isRestrictedWord(id.name)) {
+ this.tolerateError(messages_1.Messages.StrictVarName);
+ }
+ }
+ var init = null;
+ if (this.match('=')) {
+ this.nextToken();
+ init = this.isolateCoverGrammar(this.parseAssignmentExpression);
+ }
+ else if (id.type !== syntax_1.Syntax.Identifier && !options.inFor) {
+ this.expect('=');
+ }
+ return this.finalize(node, new Node.VariableDeclarator(id, init));
+ };
+ Parser.prototype.parseVariableDeclarationList = function (options) {
+ var opt = { inFor: options.inFor };
+ var list = [];
+ list.push(this.parseVariableDeclaration(opt));
+ while (this.match(',')) {
+ this.nextToken();
+ list.push(this.parseVariableDeclaration(opt));
+ }
+ return list;
+ };
+ Parser.prototype.parseVariableStatement = function () {
+ var node = this.createNode();
+ this.expectKeyword('var');
+ var declarations = this.parseVariableDeclarationList({ inFor: false });
+ this.consumeSemicolon();
+ return this.finalize(node, new Node.VariableDeclaration(declarations, 'var'));
+ };
+ // https://tc39.github.io/ecma262/#sec-empty-statement
+ Parser.prototype.parseEmptyStatement = function () {
+ var node = this.createNode();
+ this.expect(';');
+ return this.finalize(node, new Node.EmptyStatement());
+ };
+ // https://tc39.github.io/ecma262/#sec-expression-statement
+ Parser.prototype.parseExpressionStatement = function () {
+ var node = this.createNode();
+ var expr = this.parseExpression();
+ this.consumeSemicolon();
+ return this.finalize(node, new Node.ExpressionStatement(expr));
+ };
+ // https://tc39.github.io/ecma262/#sec-if-statement
+ Parser.prototype.parseIfClause = function () {
+ if (this.context.strict && this.matchKeyword('function')) {
+ this.tolerateError(messages_1.Messages.StrictFunction);
+ }
+ return this.parseStatement();
+ };
+ Parser.prototype.parseIfStatement = function () {
+ var node = this.createNode();
+ var consequent;
+ var alternate = null;
+ this.expectKeyword('if');
+ this.expect('(');
+ var test = this.parseExpression();
+ if (!this.match(')') && this.config.tolerant) {
+ this.tolerateUnexpectedToken(this.nextToken());
+ consequent = this.finalize(this.createNode(), new Node.EmptyStatement());
+ }
+ else {
+ this.expect(')');
+ consequent = this.parseIfClause();
+ if (this.matchKeyword('else')) {
+ this.nextToken();
+ alternate = this.parseIfClause();
+ }
+ }
+ return this.finalize(node, new Node.IfStatement(test, consequent, alternate));
+ };
+ // https://tc39.github.io/ecma262/#sec-do-while-statement
+ Parser.prototype.parseDoWhileStatement = function () {
+ var node = this.createNode();
+ this.expectKeyword('do');
+ var previousInIteration = this.context.inIteration;
+ this.context.inIteration = true;
+ var body = this.parseStatement();
+ this.context.inIteration = previousInIteration;
+ this.expectKeyword('while');
+ this.expect('(');
+ var test = this.parseExpression();
+ if (!this.match(')') && this.config.tolerant) {
+ this.tolerateUnexpectedToken(this.nextToken());
+ }
+ else {
+ this.expect(')');
+ if (this.match(';')) {
+ this.nextToken();
+ }
+ }
+ return this.finalize(node, new Node.DoWhileStatement(body, test));
+ };
+ // https://tc39.github.io/ecma262/#sec-while-statement
+ Parser.prototype.parseWhileStatement = function () {
+ var node = this.createNode();
+ var body;
+ this.expectKeyword('while');
+ this.expect('(');
+ var test = this.parseExpression();
+ if (!this.match(')') && this.config.tolerant) {
+ this.tolerateUnexpectedToken(this.nextToken());
+ body = this.finalize(this.createNode(), new Node.EmptyStatement());
+ }
+ else {
+ this.expect(')');
+ var previousInIteration = this.context.inIteration;
+ this.context.inIteration = true;
+ body = this.parseStatement();
+ this.context.inIteration = previousInIteration;
+ }
+ return this.finalize(node, new Node.WhileStatement(test, body));
+ };
+ // https://tc39.github.io/ecma262/#sec-for-statement
+ // https://tc39.github.io/ecma262/#sec-for-in-and-for-of-statements
+ Parser.prototype.parseForStatement = function () {
+ var init = null;
+ var test = null;
+ var update = null;
+ var forIn = true;
+ var left, right;
+ var node = this.createNode();
+ this.expectKeyword('for');
+ this.expect('(');
+ if (this.match(';')) {
+ this.nextToken();
+ }
+ else {
+ if (this.matchKeyword('var')) {
+ init = this.createNode();
+ this.nextToken();
+ var previousAllowIn = this.context.allowIn;
+ this.context.allowIn = false;
+ var declarations = this.parseVariableDeclarationList({ inFor: true });
+ this.context.allowIn = previousAllowIn;
+ if (declarations.length === 1 && this.matchKeyword('in')) {
+ var decl = declarations[0];
+ if (decl.init && (decl.id.type === syntax_1.Syntax.ArrayPattern || decl.id.type === syntax_1.Syntax.ObjectPattern || this.context.strict)) {
+ this.tolerateError(messages_1.Messages.ForInOfLoopInitializer, 'for-in');
+ }
+ init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var'));
+ this.nextToken();
+ left = init;
+ right = this.parseExpression();
+ init = null;
+ }
+ else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) {
+ init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var'));
+ this.nextToken();
+ left = init;
+ right = this.parseAssignmentExpression();
+ init = null;
+ forIn = false;
+ }
+ else {
+ init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var'));
+ this.expect(';');
+ }
+ }
+ else if (this.matchKeyword('const') || this.matchKeyword('let')) {
+ init = this.createNode();
+ var kind = this.nextToken().value;
+ if (!this.context.strict && this.lookahead.value === 'in') {
+ init = this.finalize(init, new Node.Identifier(kind));
+ this.nextToken();
+ left = init;
+ right = this.parseExpression();
+ init = null;
+ }
+ else {
+ var previousAllowIn = this.context.allowIn;
+ this.context.allowIn = false;
+ var declarations = this.parseBindingList(kind, { inFor: true });
+ this.context.allowIn = previousAllowIn;
+ if (declarations.length === 1 && declarations[0].init === null && this.matchKeyword('in')) {
+ init = this.finalize(init, new Node.VariableDeclaration(declarations, kind));
+ this.nextToken();
+ left = init;
+ right = this.parseExpression();
+ init = null;
+ }
+ else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) {
+ init = this.finalize(init, new Node.VariableDeclaration(declarations, kind));
+ this.nextToken();
+ left = init;
+ right = this.parseAssignmentExpression();
+ init = null;
+ forIn = false;
+ }
+ else {
+ this.consumeSemicolon();
+ init = this.finalize(init, new Node.VariableDeclaration(declarations, kind));
+ }
+ }
+ }
+ else {
+ var initStartToken = this.lookahead;
+ var previousAllowIn = this.context.allowIn;
+ this.context.allowIn = false;
+ init = this.inheritCoverGrammar(this.parseAssignmentExpression);
+ this.context.allowIn = previousAllowIn;
+ if (this.matchKeyword('in')) {
+ if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) {
+ this.tolerateError(messages_1.Messages.InvalidLHSInForIn);
+ }
+ this.nextToken();
+ this.reinterpretExpressionAsPattern(init);
+ left = init;
+ right = this.parseExpression();
+ init = null;
+ }
+ else if (this.matchContextualKeyword('of')) {
+ if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) {
+ this.tolerateError(messages_1.Messages.InvalidLHSInForLoop);
+ }
+ this.nextToken();
+ this.reinterpretExpressionAsPattern(init);
+ left = init;
+ right = this.parseAssignmentExpression();
+ init = null;
+ forIn = false;
+ }
+ else {
+ if (this.match(',')) {
+ var initSeq = [init];
+ while (this.match(',')) {
+ this.nextToken();
+ initSeq.push(this.isolateCoverGrammar(this.parseAssignmentExpression));
+ }
+ init = this.finalize(this.startNode(initStartToken), new Node.SequenceExpression(initSeq));
+ }
+ this.expect(';');
+ }
+ }
+ }
+ if (typeof left === 'undefined') {
+ if (!this.match(';')) {
+ test = this.parseExpression();
+ }
+ this.expect(';');
+ if (!this.match(')')) {
+ update = this.parseExpression();
+ }
+ }
+ var body;
+ if (!this.match(')') && this.config.tolerant) {
+ this.tolerateUnexpectedToken(this.nextToken());
+ body = this.finalize(this.createNode(), new Node.EmptyStatement());
+ }
+ else {
+ this.expect(')');
+ var previousInIteration = this.context.inIteration;
+ this.context.inIteration = true;
+ body = this.isolateCoverGrammar(this.parseStatement);
+ this.context.inIteration = previousInIteration;
+ }
+ return (typeof left === 'undefined') ?
+ this.finalize(node, new Node.ForStatement(init, test, update, body)) :
+ forIn ? this.finalize(node, new Node.ForInStatement(left, right, body)) :
+ this.finalize(node, new Node.ForOfStatement(left, right, body));
+ };
+ // https://tc39.github.io/ecma262/#sec-continue-statement
+ Parser.prototype.parseContinueStatement = function () {
+ var node = this.createNode();
+ this.expectKeyword('continue');
+ var label = null;
+ if (this.lookahead.type === 3 /* Identifier */ && !this.hasLineTerminator) {
+ var id = this.parseVariableIdentifier();
+ label = id;
+ var key = '$' + id.name;
+ if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) {
+ this.throwError(messages_1.Messages.UnknownLabel, id.name);
+ }
+ }
+ this.consumeSemicolon();
+ if (label === null && !this.context.inIteration) {
+ this.throwError(messages_1.Messages.IllegalContinue);
+ }
+ return this.finalize(node, new Node.ContinueStatement(label));
+ };
+ // https://tc39.github.io/ecma262/#sec-break-statement
+ Parser.prototype.parseBreakStatement = function () {
+ var node = this.createNode();
+ this.expectKeyword('break');
+ var label = null;
+ if (this.lookahead.type === 3 /* Identifier */ && !this.hasLineTerminator) {
+ var id = this.parseVariableIdentifier();
+ var key = '$' + id.name;
+ if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) {
+ this.throwError(messages_1.Messages.UnknownLabel, id.name);
+ }
+ label = id;
+ }
+ this.consumeSemicolon();
+ if (label === null && !this.context.inIteration && !this.context.inSwitch) {
+ this.throwError(messages_1.Messages.IllegalBreak);
+ }
+ return this.finalize(node, new Node.BreakStatement(label));
+ };
+ // https://tc39.github.io/ecma262/#sec-return-statement
+ Parser.prototype.parseReturnStatement = function () {
+ if (!this.context.inFunctionBody) {
+ this.tolerateError(messages_1.Messages.IllegalReturn);
+ }
+ var node = this.createNode();
+ this.expectKeyword('return');
+ var hasArgument = (!this.match(';') && !this.match('}') &&
+ !this.hasLineTerminator && this.lookahead.type !== 2 /* EOF */) ||
+ this.lookahead.type === 8 /* StringLiteral */ ||
+ this.lookahead.type === 10 /* Template */;
+ var argument = hasArgument ? this.parseExpression() : null;
+ this.consumeSemicolon();
+ return this.finalize(node, new Node.ReturnStatement(argument));
+ };
+ // https://tc39.github.io/ecma262/#sec-with-statement
+ Parser.prototype.parseWithStatement = function () {
+ if (this.context.strict) {
+ this.tolerateError(messages_1.Messages.StrictModeWith);
+ }
+ var node = this.createNode();
+ var body;
+ this.expectKeyword('with');
+ this.expect('(');
+ var object = this.parseExpression();
+ if (!this.match(')') && this.config.tolerant) {
+ this.tolerateUnexpectedToken(this.nextToken());
+ body = this.finalize(this.createNode(), new Node.EmptyStatement());
+ }
+ else {
+ this.expect(')');
+ body = this.parseStatement();
+ }
+ return this.finalize(node, new Node.WithStatement(object, body));
+ };
+ // https://tc39.github.io/ecma262/#sec-switch-statement
+ Parser.prototype.parseSwitchCase = function () {
+ var node = this.createNode();
+ var test;
+ if (this.matchKeyword('default')) {
+ this.nextToken();
+ test = null;
+ }
+ else {
+ this.expectKeyword('case');
+ test = this.parseExpression();
+ }
+ this.expect(':');
+ var consequent = [];
+ while (true) {
+ if (this.match('}') || this.matchKeyword('default') || this.matchKeyword('case')) {
+ break;
+ }
+ consequent.push(this.parseStatementListItem());
+ }
+ return this.finalize(node, new Node.SwitchCase(test, consequent));
+ };
+ Parser.prototype.parseSwitchStatement = function () {
+ var node = this.createNode();
+ this.expectKeyword('switch');
+ this.expect('(');
+ var discriminant = this.parseExpression();
+ this.expect(')');
+ var previousInSwitch = this.context.inSwitch;
+ this.context.inSwitch = true;
+ var cases = [];
+ var defaultFound = false;
+ this.expect('{');
+ while (true) {
+ if (this.match('}')) {
+ break;
+ }
+ var clause = this.parseSwitchCase();
+ if (clause.test === null) {
+ if (defaultFound) {
+ this.throwError(messages_1.Messages.MultipleDefaultsInSwitch);
+ }
+ defaultFound = true;
+ }
+ cases.push(clause);
+ }
+ this.expect('}');
+ this.context.inSwitch = previousInSwitch;
+ return this.finalize(node, new Node.SwitchStatement(discriminant, cases));
+ };
+ // https://tc39.github.io/ecma262/#sec-labelled-statements
+ Parser.prototype.parseLabelledStatement = function () {
+ var node = this.createNode();
+ var expr = this.parseExpression();
+ var statement;
+ if ((expr.type === syntax_1.Syntax.Identifier) && this.match(':')) {
+ this.nextToken();
+ var id = expr;
+ var key = '$' + id.name;
+ if (Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) {
+ this.throwError(messages_1.Messages.Redeclaration, 'Label', id.name);
+ }
+ this.context.labelSet[key] = true;
+ var body = void 0;
+ if (this.matchKeyword('class')) {
+ this.tolerateUnexpectedToken(this.lookahead);
+ body = this.parseClassDeclaration();
+ }
+ else if (this.matchKeyword('function')) {
+ var token = this.lookahead;
+ var declaration = this.parseFunctionDeclaration();
+ if (this.context.strict) {
+ this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunction);
+ }
+ else if (declaration.generator) {
+ this.tolerateUnexpectedToken(token, messages_1.Messages.GeneratorInLegacyContext);
+ }
+ body = declaration;
+ }
+ else {
+ body = this.parseStatement();
+ }
+ delete this.context.labelSet[key];
+ statement = new Node.LabeledStatement(id, body);
+ }
+ else {
+ this.consumeSemicolon();
+ statement = new Node.ExpressionStatement(expr);
+ }
+ return this.finalize(node, statement);
+ };
+ // https://tc39.github.io/ecma262/#sec-throw-statement
+ Parser.prototype.parseThrowStatement = function () {
+ var node = this.createNode();
+ this.expectKeyword('throw');
+ if (this.hasLineTerminator) {
+ this.throwError(messages_1.Messages.NewlineAfterThrow);
+ }
+ var argument = this.parseExpression();
+ this.consumeSemicolon();
+ return this.finalize(node, new Node.ThrowStatement(argument));
+ };
+ // https://tc39.github.io/ecma262/#sec-try-statement
+ Parser.prototype.parseCatchClause = function () {
+ var node = this.createNode();
+ this.expectKeyword('catch');
+ this.expect('(');
+ if (this.match(')')) {
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ var params = [];
+ var param = this.parsePattern(params);
+ var paramMap = {};
+ for (var i = 0; i < params.length; i++) {
+ var key = '$' + params[i].value;
+ if (Object.prototype.hasOwnProperty.call(paramMap, key)) {
+ this.tolerateError(messages_1.Messages.DuplicateBinding, params[i].value);
+ }
+ paramMap[key] = true;
+ }
+ if (this.context.strict && param.type === syntax_1.Syntax.Identifier) {
+ if (this.scanner.isRestrictedWord(param.name)) {
+ this.tolerateError(messages_1.Messages.StrictCatchVariable);
+ }
+ }
+ this.expect(')');
+ var body = this.parseBlock();
+ return this.finalize(node, new Node.CatchClause(param, body));
+ };
+ Parser.prototype.parseFinallyClause = function () {
+ this.expectKeyword('finally');
+ return this.parseBlock();
+ };
+ Parser.prototype.parseTryStatement = function () {
+ var node = this.createNode();
+ this.expectKeyword('try');
+ var block = this.parseBlock();
+ var handler = this.matchKeyword('catch') ? this.parseCatchClause() : null;
+ var finalizer = this.matchKeyword('finally') ? this.parseFinallyClause() : null;
+ if (!handler && !finalizer) {
+ this.throwError(messages_1.Messages.NoCatchOrFinally);
+ }
+ return this.finalize(node, new Node.TryStatement(block, handler, finalizer));
+ };
+ // https://tc39.github.io/ecma262/#sec-debugger-statement
+ Parser.prototype.parseDebuggerStatement = function () {
+ var node = this.createNode();
+ this.expectKeyword('debugger');
+ this.consumeSemicolon();
+ return this.finalize(node, new Node.DebuggerStatement());
+ };
+ // https://tc39.github.io/ecma262/#sec-ecmascript-language-statements-and-declarations
+ Parser.prototype.parseStatement = function () {
+ var statement;
+ switch (this.lookahead.type) {
+ case 1 /* BooleanLiteral */:
+ case 5 /* NullLiteral */:
+ case 6 /* NumericLiteral */:
+ case 8 /* StringLiteral */:
+ case 10 /* Template */:
+ case 9 /* RegularExpression */:
+ statement = this.parseExpressionStatement();
+ break;
+ case 7 /* Punctuator */:
+ var value = this.lookahead.value;
+ if (value === '{') {
+ statement = this.parseBlock();
+ }
+ else if (value === '(') {
+ statement = this.parseExpressionStatement();
+ }
+ else if (value === ';') {
+ statement = this.parseEmptyStatement();
+ }
+ else {
+ statement = this.parseExpressionStatement();
+ }
+ break;
+ case 3 /* Identifier */:
+ statement = this.matchAsyncFunction() ? this.parseFunctionDeclaration() : this.parseLabelledStatement();
+ break;
+ case 4 /* Keyword */:
+ switch (this.lookahead.value) {
+ case 'break':
+ statement = this.parseBreakStatement();
+ break;
+ case 'continue':
+ statement = this.parseContinueStatement();
+ break;
+ case 'debugger':
+ statement = this.parseDebuggerStatement();
+ break;
+ case 'do':
+ statement = this.parseDoWhileStatement();
+ break;
+ case 'for':
+ statement = this.parseForStatement();
+ break;
+ case 'function':
+ statement = this.parseFunctionDeclaration();
+ break;
+ case 'if':
+ statement = this.parseIfStatement();
+ break;
+ case 'return':
+ statement = this.parseReturnStatement();
+ break;
+ case 'switch':
+ statement = this.parseSwitchStatement();
+ break;
+ case 'throw':
+ statement = this.parseThrowStatement();
+ break;
+ case 'try':
+ statement = this.parseTryStatement();
+ break;
+ case 'var':
+ statement = this.parseVariableStatement();
+ break;
+ case 'while':
+ statement = this.parseWhileStatement();
+ break;
+ case 'with':
+ statement = this.parseWithStatement();
+ break;
+ default:
+ statement = this.parseExpressionStatement();
+ break;
+ }
+ break;
+ default:
+ statement = this.throwUnexpectedToken(this.lookahead);
+ }
+ return statement;
+ };
+ // https://tc39.github.io/ecma262/#sec-function-definitions
+ Parser.prototype.parseFunctionSourceElements = function () {
+ var node = this.createNode();
+ this.expect('{');
+ var body = this.parseDirectivePrologues();
+ var previousLabelSet = this.context.labelSet;
+ var previousInIteration = this.context.inIteration;
+ var previousInSwitch = this.context.inSwitch;
+ var previousInFunctionBody = this.context.inFunctionBody;
+ this.context.labelSet = {};
+ this.context.inIteration = false;
+ this.context.inSwitch = false;
+ this.context.inFunctionBody = true;
+ while (this.lookahead.type !== 2 /* EOF */) {
+ if (this.match('}')) {
+ break;
+ }
+ body.push(this.parseStatementListItem());
+ }
+ this.expect('}');
+ this.context.labelSet = previousLabelSet;
+ this.context.inIteration = previousInIteration;
+ this.context.inSwitch = previousInSwitch;
+ this.context.inFunctionBody = previousInFunctionBody;
+ return this.finalize(node, new Node.BlockStatement(body));
+ };
+ Parser.prototype.validateParam = function (options, param, name) {
+ var key = '$' + name;
+ if (this.context.strict) {
+ if (this.scanner.isRestrictedWord(name)) {
+ options.stricted = param;
+ options.message = messages_1.Messages.StrictParamName;
+ }
+ if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) {
+ options.stricted = param;
+ options.message = messages_1.Messages.StrictParamDupe;
+ }
+ }
+ else if (!options.firstRestricted) {
+ if (this.scanner.isRestrictedWord(name)) {
+ options.firstRestricted = param;
+ options.message = messages_1.Messages.StrictParamName;
+ }
+ else if (this.scanner.isStrictModeReservedWord(name)) {
+ options.firstRestricted = param;
+ options.message = messages_1.Messages.StrictReservedWord;
+ }
+ else if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) {
+ options.stricted = param;
+ options.message = messages_1.Messages.StrictParamDupe;
+ }
+ }
+ /* istanbul ignore next */
+ if (typeof Object.defineProperty === 'function') {
+ Object.defineProperty(options.paramSet, key, { value: true, enumerable: true, writable: true, configurable: true });
+ }
+ else {
+ options.paramSet[key] = true;
+ }
+ };
+ Parser.prototype.parseRestElement = function (params) {
+ var node = this.createNode();
+ this.expect('...');
+ var arg = this.parsePattern(params);
+ if (this.match('=')) {
+ this.throwError(messages_1.Messages.DefaultRestParameter);
+ }
+ if (!this.match(')')) {
+ this.throwError(messages_1.Messages.ParameterAfterRestParameter);
+ }
+ return this.finalize(node, new Node.RestElement(arg));
+ };
+ Parser.prototype.parseFormalParameter = function (options) {
+ var params = [];
+ var param = this.match('...') ? this.parseRestElement(params) : this.parsePatternWithDefault(params);
+ for (var i = 0; i < params.length; i++) {
+ this.validateParam(options, params[i], params[i].value);
+ }
+ options.simple = options.simple && (param instanceof Node.Identifier);
+ options.params.push(param);
+ };
+ Parser.prototype.parseFormalParameters = function (firstRestricted) {
+ var options;
+ options = {
+ simple: true,
+ params: [],
+ firstRestricted: firstRestricted
+ };
+ this.expect('(');
+ if (!this.match(')')) {
+ options.paramSet = {};
+ while (this.lookahead.type !== 2 /* EOF */) {
+ this.parseFormalParameter(options);
+ if (this.match(')')) {
+ break;
+ }
+ this.expect(',');
+ if (this.match(')')) {
+ break;
+ }
+ }
+ }
+ this.expect(')');
+ return {
+ simple: options.simple,
+ params: options.params,
+ stricted: options.stricted,
+ firstRestricted: options.firstRestricted,
+ message: options.message
+ };
+ };
+ Parser.prototype.matchAsyncFunction = function () {
+ var match = this.matchContextualKeyword('async');
+ if (match) {
+ var state = this.scanner.saveState();
+ this.scanner.scanComments();
+ var next = this.scanner.lex();
+ this.scanner.restoreState(state);
+ match = (state.lineNumber === next.lineNumber) && (next.type === 4 /* Keyword */) && (next.value === 'function');
+ }
+ return match;
+ };
+ Parser.prototype.parseFunctionDeclaration = function (identifierIsOptional) {
+ var node = this.createNode();
+ var isAsync = this.matchContextualKeyword('async');
+ if (isAsync) {
+ this.nextToken();
+ }
+ this.expectKeyword('function');
+ var isGenerator = isAsync ? false : this.match('*');
+ if (isGenerator) {
+ this.nextToken();
+ }
+ var message;
+ var id = null;
+ var firstRestricted = null;
+ if (!identifierIsOptional || !this.match('(')) {
+ var token = this.lookahead;
+ id = this.parseVariableIdentifier();
+ if (this.context.strict) {
+ if (this.scanner.isRestrictedWord(token.value)) {
+ this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName);
+ }
+ }
+ else {
+ if (this.scanner.isRestrictedWord(token.value)) {
+ firstRestricted = token;
+ message = messages_1.Messages.StrictFunctionName;
+ }
+ else if (this.scanner.isStrictModeReservedWord(token.value)) {
+ firstRestricted = token;
+ message = messages_1.Messages.StrictReservedWord;
+ }
+ }
+ }
+ var previousAllowAwait = this.context.await;
+ var previousAllowYield = this.context.allowYield;
+ this.context.await = isAsync;
+ this.context.allowYield = !isGenerator;
+ var formalParameters = this.parseFormalParameters(firstRestricted);
+ var params = formalParameters.params;
+ var stricted = formalParameters.stricted;
+ firstRestricted = formalParameters.firstRestricted;
+ if (formalParameters.message) {
+ message = formalParameters.message;
+ }
+ var previousStrict = this.context.strict;
+ var previousAllowStrictDirective = this.context.allowStrictDirective;
+ this.context.allowStrictDirective = formalParameters.simple;
+ var body = this.parseFunctionSourceElements();
+ if (this.context.strict && firstRestricted) {
+ this.throwUnexpectedToken(firstRestricted, message);
+ }
+ if (this.context.strict && stricted) {
+ this.tolerateUnexpectedToken(stricted, message);
+ }
+ this.context.strict = previousStrict;
+ this.context.allowStrictDirective = previousAllowStrictDirective;
+ this.context.await = previousAllowAwait;
+ this.context.allowYield = previousAllowYield;
+ return isAsync ? this.finalize(node, new Node.AsyncFunctionDeclaration(id, params, body)) :
+ this.finalize(node, new Node.FunctionDeclaration(id, params, body, isGenerator));
+ };
+ Parser.prototype.parseFunctionExpression = function () {
+ var node = this.createNode();
+ var isAsync = this.matchContextualKeyword('async');
+ if (isAsync) {
+ this.nextToken();
+ }
+ this.expectKeyword('function');
+ var isGenerator = isAsync ? false : this.match('*');
+ if (isGenerator) {
+ this.nextToken();
+ }
+ var message;
+ var id = null;
+ var firstRestricted;
+ var previousAllowAwait = this.context.await;
+ var previousAllowYield = this.context.allowYield;
+ this.context.await = isAsync;
+ this.context.allowYield = !isGenerator;
+ if (!this.match('(')) {
+ var token = this.lookahead;
+ id = (!this.context.strict && !isGenerator && this.matchKeyword('yield')) ? this.parseIdentifierName() : this.parseVariableIdentifier();
+ if (this.context.strict) {
+ if (this.scanner.isRestrictedWord(token.value)) {
+ this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName);
+ }
+ }
+ else {
+ if (this.scanner.isRestrictedWord(token.value)) {
+ firstRestricted = token;
+ message = messages_1.Messages.StrictFunctionName;
+ }
+ else if (this.scanner.isStrictModeReservedWord(token.value)) {
+ firstRestricted = token;
+ message = messages_1.Messages.StrictReservedWord;
+ }
+ }
+ }
+ var formalParameters = this.parseFormalParameters(firstRestricted);
+ var params = formalParameters.params;
+ var stricted = formalParameters.stricted;
+ firstRestricted = formalParameters.firstRestricted;
+ if (formalParameters.message) {
+ message = formalParameters.message;
+ }
+ var previousStrict = this.context.strict;
+ var previousAllowStrictDirective = this.context.allowStrictDirective;
+ this.context.allowStrictDirective = formalParameters.simple;
+ var body = this.parseFunctionSourceElements();
+ if (this.context.strict && firstRestricted) {
+ this.throwUnexpectedToken(firstRestricted, message);
+ }
+ if (this.context.strict && stricted) {
+ this.tolerateUnexpectedToken(stricted, message);
+ }
+ this.context.strict = previousStrict;
+ this.context.allowStrictDirective = previousAllowStrictDirective;
+ this.context.await = previousAllowAwait;
+ this.context.allowYield = previousAllowYield;
+ return isAsync ? this.finalize(node, new Node.AsyncFunctionExpression(id, params, body)) :
+ this.finalize(node, new Node.FunctionExpression(id, params, body, isGenerator));
+ };
+ // https://tc39.github.io/ecma262/#sec-directive-prologues-and-the-use-strict-directive
+ Parser.prototype.parseDirective = function () {
+ var token = this.lookahead;
+ var node = this.createNode();
+ var expr = this.parseExpression();
+ var directive = (expr.type === syntax_1.Syntax.Literal) ? this.getTokenRaw(token).slice(1, -1) : null;
+ this.consumeSemicolon();
+ return this.finalize(node, directive ? new Node.Directive(expr, directive) : new Node.ExpressionStatement(expr));
+ };
+ Parser.prototype.parseDirectivePrologues = function () {
+ var firstRestricted = null;
+ var body = [];
+ while (true) {
+ var token = this.lookahead;
+ if (token.type !== 8 /* StringLiteral */) {
+ break;
+ }
+ var statement = this.parseDirective();
+ body.push(statement);
+ var directive = statement.directive;
+ if (typeof directive !== 'string') {
+ break;
+ }
+ if (directive === 'use strict') {
+ this.context.strict = true;
+ if (firstRestricted) {
+ this.tolerateUnexpectedToken(firstRestricted, messages_1.Messages.StrictOctalLiteral);
+ }
+ if (!this.context.allowStrictDirective) {
+ this.tolerateUnexpectedToken(token, messages_1.Messages.IllegalLanguageModeDirective);
+ }
+ }
+ else {
+ if (!firstRestricted && token.octal) {
+ firstRestricted = token;
+ }
+ }
+ }
+ return body;
+ };
+ // https://tc39.github.io/ecma262/#sec-method-definitions
+ Parser.prototype.qualifiedPropertyName = function (token) {
+ switch (token.type) {
+ case 3 /* Identifier */:
+ case 8 /* StringLiteral */:
+ case 1 /* BooleanLiteral */:
+ case 5 /* NullLiteral */:
+ case 6 /* NumericLiteral */:
+ case 4 /* Keyword */:
+ return true;
+ case 7 /* Punctuator */:
+ return token.value === '[';
+ default:
+ break;
+ }
+ return false;
+ };
+ Parser.prototype.parseGetterMethod = function () {
+ var node = this.createNode();
+ var isGenerator = false;
+ var previousAllowYield = this.context.allowYield;
+ this.context.allowYield = !isGenerator;
+ var formalParameters = this.parseFormalParameters();
+ if (formalParameters.params.length > 0) {
+ this.tolerateError(messages_1.Messages.BadGetterArity);
+ }
+ var method = this.parsePropertyMethod(formalParameters);
+ this.context.allowYield = previousAllowYield;
+ return this.finalize(node, new Node.FunctionExpression(null, formalParameters.params, method, isGenerator));
+ };
+ Parser.prototype.parseSetterMethod = function () {
+ var node = this.createNode();
+ var isGenerator = false;
+ var previousAllowYield = this.context.allowYield;
+ this.context.allowYield = !isGenerator;
+ var formalParameters = this.parseFormalParameters();
+ if (formalParameters.params.length !== 1) {
+ this.tolerateError(messages_1.Messages.BadSetterArity);
+ }
+ else if (formalParameters.params[0] instanceof Node.RestElement) {
+ this.tolerateError(messages_1.Messages.BadSetterRestParameter);
+ }
+ var method = this.parsePropertyMethod(formalParameters);
+ this.context.allowYield = previousAllowYield;
+ return this.finalize(node, new Node.FunctionExpression(null, formalParameters.params, method, isGenerator));
+ };
+ Parser.prototype.parseGeneratorMethod = function () {
+ var node = this.createNode();
+ var isGenerator = true;
+ var previousAllowYield = this.context.allowYield;
+ this.context.allowYield = true;
+ var params = this.parseFormalParameters();
+ this.context.allowYield = false;
+ var method = this.parsePropertyMethod(params);
+ this.context.allowYield = previousAllowYield;
+ return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator));
+ };
+ // https://tc39.github.io/ecma262/#sec-generator-function-definitions
+ Parser.prototype.isStartOfExpression = function () {
+ var start = true;
+ var value = this.lookahead.value;
+ switch (this.lookahead.type) {
+ case 7 /* Punctuator */:
+ start = (value === '[') || (value === '(') || (value === '{') ||
+ (value === '+') || (value === '-') ||
+ (value === '!') || (value === '~') ||
+ (value === '++') || (value === '--') ||
+ (value === '/') || (value === '/='); // regular expression literal
+ break;
+ case 4 /* Keyword */:
+ start = (value === 'class') || (value === 'delete') ||
+ (value === 'function') || (value === 'let') || (value === 'new') ||
+ (value === 'super') || (value === 'this') || (value === 'typeof') ||
+ (value === 'void') || (value === 'yield');
+ break;
+ default:
+ break;
+ }
+ return start;
+ };
+ Parser.prototype.parseYieldExpression = function () {
+ var node = this.createNode();
+ this.expectKeyword('yield');
+ var argument = null;
+ var delegate = false;
+ if (!this.hasLineTerminator) {
+ var previousAllowYield = this.context.allowYield;
+ this.context.allowYield = false;
+ delegate = this.match('*');
+ if (delegate) {
+ this.nextToken();
+ argument = this.parseAssignmentExpression();
+ }
+ else if (this.isStartOfExpression()) {
+ argument = this.parseAssignmentExpression();
+ }
+ this.context.allowYield = previousAllowYield;
+ }
+ return this.finalize(node, new Node.YieldExpression(argument, delegate));
+ };
+ // https://tc39.github.io/ecma262/#sec-class-definitions
+ Parser.prototype.parseClassElement = function (hasConstructor) {
+ var token = this.lookahead;
+ var node = this.createNode();
+ var kind = '';
+ var key = null;
+ var value = null;
+ var computed = false;
+ var method = false;
+ var isStatic = false;
+ var isAsync = false;
+ if (this.match('*')) {
+ this.nextToken();
+ }
+ else {
+ computed = this.match('[');
+ key = this.parseObjectPropertyKey();
+ var id = key;
+ if (id.name === 'static' && (this.qualifiedPropertyName(this.lookahead) || this.match('*'))) {
+ token = this.lookahead;
+ isStatic = true;
+ computed = this.match('[');
+ if (this.match('*')) {
+ this.nextToken();
+ }
+ else {
+ key = this.parseObjectPropertyKey();
+ }
+ }
+ if ((token.type === 3 /* Identifier */) && !this.hasLineTerminator && (token.value === 'async')) {
+ var punctuator = this.lookahead.value;
+ if (punctuator !== ':' && punctuator !== '(' && punctuator !== '*') {
+ isAsync = true;
+ token = this.lookahead;
+ key = this.parseObjectPropertyKey();
+ if (token.type === 3 /* Identifier */ && token.value === 'constructor') {
+ this.tolerateUnexpectedToken(token, messages_1.Messages.ConstructorIsAsync);
+ }
+ }
+ }
+ }
+ var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead);
+ if (token.type === 3 /* Identifier */) {
+ if (token.value === 'get' && lookaheadPropertyKey) {
+ kind = 'get';
+ computed = this.match('[');
+ key = this.parseObjectPropertyKey();
+ this.context.allowYield = false;
+ value = this.parseGetterMethod();
+ }
+ else if (token.value === 'set' && lookaheadPropertyKey) {
+ kind = 'set';
+ computed = this.match('[');
+ key = this.parseObjectPropertyKey();
+ value = this.parseSetterMethod();
+ }
+ }
+ else if (token.type === 7 /* Punctuator */ && token.value === '*' && lookaheadPropertyKey) {
+ kind = 'init';
+ computed = this.match('[');
+ key = this.parseObjectPropertyKey();
+ value = this.parseGeneratorMethod();
+ method = true;
+ }
+ if (!kind && key && this.match('(')) {
+ kind = 'init';
+ value = isAsync ? this.parsePropertyMethodAsyncFunction() : this.parsePropertyMethodFunction();
+ method = true;
+ }
+ if (!kind) {
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ if (kind === 'init') {
+ kind = 'method';
+ }
+ if (!computed) {
+ if (isStatic && this.isPropertyKey(key, 'prototype')) {
+ this.throwUnexpectedToken(token, messages_1.Messages.StaticPrototype);
+ }
+ if (!isStatic && this.isPropertyKey(key, 'constructor')) {
+ if (kind !== 'method' || !method || (value && value.generator)) {
+ this.throwUnexpectedToken(token, messages_1.Messages.ConstructorSpecialMethod);
+ }
+ if (hasConstructor.value) {
+ this.throwUnexpectedToken(token, messages_1.Messages.DuplicateConstructor);
+ }
+ else {
+ hasConstructor.value = true;
+ }
+ kind = 'constructor';
+ }
+ }
+ return this.finalize(node, new Node.MethodDefinition(key, computed, value, kind, isStatic));
+ };
+ Parser.prototype.parseClassElementList = function () {
+ var body = [];
+ var hasConstructor = { value: false };
+ this.expect('{');
+ while (!this.match('}')) {
+ if (this.match(';')) {
+ this.nextToken();
+ }
+ else {
+ body.push(this.parseClassElement(hasConstructor));
+ }
+ }
+ this.expect('}');
+ return body;
+ };
+ Parser.prototype.parseClassBody = function () {
+ var node = this.createNode();
+ var elementList = this.parseClassElementList();
+ return this.finalize(node, new Node.ClassBody(elementList));
+ };
+ Parser.prototype.parseClassDeclaration = function (identifierIsOptional) {
+ var node = this.createNode();
+ var previousStrict = this.context.strict;
+ this.context.strict = true;
+ this.expectKeyword('class');
+ var id = (identifierIsOptional && (this.lookahead.type !== 3 /* Identifier */)) ? null : this.parseVariableIdentifier();
+ var superClass = null;
+ if (this.matchKeyword('extends')) {
+ this.nextToken();
+ superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall);
+ }
+ var classBody = this.parseClassBody();
+ this.context.strict = previousStrict;
+ return this.finalize(node, new Node.ClassDeclaration(id, superClass, classBody));
+ };
+ Parser.prototype.parseClassExpression = function () {
+ var node = this.createNode();
+ var previousStrict = this.context.strict;
+ this.context.strict = true;
+ this.expectKeyword('class');
+ var id = (this.lookahead.type === 3 /* Identifier */) ? this.parseVariableIdentifier() : null;
+ var superClass = null;
+ if (this.matchKeyword('extends')) {
+ this.nextToken();
+ superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall);
+ }
+ var classBody = this.parseClassBody();
+ this.context.strict = previousStrict;
+ return this.finalize(node, new Node.ClassExpression(id, superClass, classBody));
+ };
+ // https://tc39.github.io/ecma262/#sec-scripts
+ // https://tc39.github.io/ecma262/#sec-modules
+ Parser.prototype.parseModule = function () {
+ this.context.strict = true;
+ this.context.isModule = true;
+ this.scanner.isModule = true;
+ var node = this.createNode();
+ var body = this.parseDirectivePrologues();
+ while (this.lookahead.type !== 2 /* EOF */) {
+ body.push(this.parseStatementListItem());
+ }
+ return this.finalize(node, new Node.Module(body));
+ };
+ Parser.prototype.parseScript = function () {
+ var node = this.createNode();
+ var body = this.parseDirectivePrologues();
+ while (this.lookahead.type !== 2 /* EOF */) {
+ body.push(this.parseStatementListItem());
+ }
+ return this.finalize(node, new Node.Script(body));
+ };
+ // https://tc39.github.io/ecma262/#sec-imports
+ Parser.prototype.parseModuleSpecifier = function () {
+ var node = this.createNode();
+ if (this.lookahead.type !== 8 /* StringLiteral */) {
+ this.throwError(messages_1.Messages.InvalidModuleSpecifier);
+ }
+ var token = this.nextToken();
+ var raw = this.getTokenRaw(token);
+ return this.finalize(node, new Node.Literal(token.value, raw));
+ };
+ // import {<foo as bar>} ...;
+ Parser.prototype.parseImportSpecifier = function () {
+ var node = this.createNode();
+ var imported;
+ var local;
+ if (this.lookahead.type === 3 /* Identifier */) {
+ imported = this.parseVariableIdentifier();
+ local = imported;
+ if (this.matchContextualKeyword('as')) {
+ this.nextToken();
+ local = this.parseVariableIdentifier();
+ }
+ }
+ else {
+ imported = this.parseIdentifierName();
+ local = imported;
+ if (this.matchContextualKeyword('as')) {
+ this.nextToken();
+ local = this.parseVariableIdentifier();
+ }
+ else {
+ this.throwUnexpectedToken(this.nextToken());
+ }
+ }
+ return this.finalize(node, new Node.ImportSpecifier(local, imported));
+ };
+ // {foo, bar as bas}
+ Parser.prototype.parseNamedImports = function () {
+ this.expect('{');
+ var specifiers = [];
+ while (!this.match('}')) {
+ specifiers.push(this.parseImportSpecifier());
+ if (!this.match('}')) {
+ this.expect(',');
+ }
+ }
+ this.expect('}');
+ return specifiers;
+ };
+ // import <foo> ...;
+ Parser.prototype.parseImportDefaultSpecifier = function () {
+ var node = this.createNode();
+ var local = this.parseIdentifierName();
+ return this.finalize(node, new Node.ImportDefaultSpecifier(local));
+ };
+ // import <* as foo> ...;
+ Parser.prototype.parseImportNamespaceSpecifier = function () {
+ var node = this.createNode();
+ this.expect('*');
+ if (!this.matchContextualKeyword('as')) {
+ this.throwError(messages_1.Messages.NoAsAfterImportNamespace);
+ }
+ this.nextToken();
+ var local = this.parseIdentifierName();
+ return this.finalize(node, new Node.ImportNamespaceSpecifier(local));
+ };
+ Parser.prototype.parseImportDeclaration = function () {
+ if (this.context.inFunctionBody) {
+ this.throwError(messages_1.Messages.IllegalImportDeclaration);
+ }
+ var node = this.createNode();
+ this.expectKeyword('import');
+ var src;
+ var specifiers = [];
+ if (this.lookahead.type === 8 /* StringLiteral */) {
+ // import 'foo';
+ src = this.parseModuleSpecifier();
+ }
+ else {
+ if (this.match('{')) {
+ // import {bar}
+ specifiers = specifiers.concat(this.parseNamedImports());
+ }
+ else if (this.match('*')) {
+ // import * as foo
+ specifiers.push(this.parseImportNamespaceSpecifier());
+ }
+ else if (this.isIdentifierName(this.lookahead) && !this.matchKeyword('default')) {
+ // import foo
+ specifiers.push(this.parseImportDefaultSpecifier());
+ if (this.match(',')) {
+ this.nextToken();
+ if (this.match('*')) {
+ // import foo, * as foo
+ specifiers.push(this.parseImportNamespaceSpecifier());
+ }
+ else if (this.match('{')) {
+ // import foo, {bar}
+ specifiers = specifiers.concat(this.parseNamedImports());
+ }
+ else {
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ }
+ }
+ else {
+ this.throwUnexpectedToken(this.nextToken());
+ }
+ if (!this.matchContextualKeyword('from')) {
+ var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause;
+ this.throwError(message, this.lookahead.value);
+ }
+ this.nextToken();
+ src = this.parseModuleSpecifier();
+ }
+ this.consumeSemicolon();
+ return this.finalize(node, new Node.ImportDeclaration(specifiers, src));
+ };
+ // https://tc39.github.io/ecma262/#sec-exports
+ Parser.prototype.parseExportSpecifier = function () {
+ var node = this.createNode();
+ var local = this.parseIdentifierName();
+ var exported = local;
+ if (this.matchContextualKeyword('as')) {
+ this.nextToken();
+ exported = this.parseIdentifierName();
+ }
+ return this.finalize(node, new Node.ExportSpecifier(local, exported));
+ };
+ Parser.prototype.parseExportDeclaration = function () {
+ if (this.context.inFunctionBody) {
+ this.throwError(messages_1.Messages.IllegalExportDeclaration);
+ }
+ var node = this.createNode();
+ this.expectKeyword('export');
+ var exportDeclaration;
+ if (this.matchKeyword('default')) {
+ // export default ...
+ this.nextToken();
+ if (this.matchKeyword('function')) {
+ // export default function foo () {}
+ // export default function () {}
+ var declaration = this.parseFunctionDeclaration(true);
+ exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration));
+ }
+ else if (this.matchKeyword('class')) {
+ // export default class foo {}
+ var declaration = this.parseClassDeclaration(true);
+ exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration));
+ }
+ else if (this.matchContextualKeyword('async')) {
+ // export default async function f () {}
+ // export default async function () {}
+ // export default async x => x
+ var declaration = this.matchAsyncFunction() ? this.parseFunctionDeclaration(true) : this.parseAssignmentExpression();
+ exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration));
+ }
+ else {
+ if (this.matchContextualKeyword('from')) {
+ this.throwError(messages_1.Messages.UnexpectedToken, this.lookahead.value);
+ }
+ // export default {};
+ // export default [];
+ // export default (1 + 2);
+ var declaration = this.match('{') ? this.parseObjectInitializer() :
+ this.match('[') ? this.parseArrayInitializer() : this.parseAssignmentExpression();
+ this.consumeSemicolon();
+ exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration));
+ }
+ }
+ else if (this.match('*')) {
+ // export * from 'foo';
+ this.nextToken();
+ if (!this.matchContextualKeyword('from')) {
+ var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause;
+ this.throwError(message, this.lookahead.value);
+ }
+ this.nextToken();
+ var src = this.parseModuleSpecifier();
+ this.consumeSemicolon();
+ exportDeclaration = this.finalize(node, new Node.ExportAllDeclaration(src));
+ }
+ else if (this.lookahead.type === 4 /* Keyword */) {
+ // export var f = 1;
+ var declaration = void 0;
+ switch (this.lookahead.value) {
+ case 'let':
+ case 'const':
+ declaration = this.parseLexicalDeclaration({ inFor: false });
+ break;
+ case 'var':
+ case 'class':
+ case 'function':
+ declaration = this.parseStatementListItem();
+ break;
+ default:
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(declaration, [], null));
+ }
+ else if (this.matchAsyncFunction()) {
+ var declaration = this.parseFunctionDeclaration();
+ exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(declaration, [], null));
+ }
+ else {
+ var specifiers = [];
+ var source = null;
+ var isExportFromIdentifier = false;
+ this.expect('{');
+ while (!this.match('}')) {
+ isExportFromIdentifier = isExportFromIdentifier || this.matchKeyword('default');
+ specifiers.push(this.parseExportSpecifier());
+ if (!this.match('}')) {
+ this.expect(',');
+ }
+ }
+ this.expect('}');
+ if (this.matchContextualKeyword('from')) {
+ // export {default} from 'foo';
+ // export {foo} from 'foo';
+ this.nextToken();
+ source = this.parseModuleSpecifier();
+ this.consumeSemicolon();
+ }
+ else if (isExportFromIdentifier) {
+ // export {default}; // missing fromClause
+ var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause;
+ this.throwError(message, this.lookahead.value);
+ }
+ else {
+ // export {foo};
+ this.consumeSemicolon();
+ }
+ exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(null, specifiers, source));
+ }
+ return exportDeclaration;
+ };
+ return Parser;
+ }());
+ exports.Parser = Parser;
+
+
+/***/ },
+/* 9 */
+/***/ function(module, exports) {
+
+ "use strict";
+ // Ensure the condition is true, otherwise throw an error.
+ // This is only to have a better contract semantic, i.e. another safety net
+ // to catch a logic error. The condition shall be fulfilled in normal case.
+ // Do NOT use this to enforce a certain condition on any user input.
+ Object.defineProperty(exports, "__esModule", { value: true });
+ function assert(condition, message) {
+ /* istanbul ignore if */
+ if (!condition) {
+ throw new Error('ASSERT: ' + message);
+ }
+ }
+ exports.assert = assert;
+
+
+/***/ },
+/* 10 */
+/***/ function(module, exports) {
+
+ "use strict";
+ /* tslint:disable:max-classes-per-file */
+ Object.defineProperty(exports, "__esModule", { value: true });
+ var ErrorHandler = (function () {
+ function ErrorHandler() {
+ this.errors = [];
+ this.tolerant = false;
+ }
+ ErrorHandler.prototype.recordError = function (error) {
+ this.errors.push(error);
+ };
+ ErrorHandler.prototype.tolerate = function (error) {
+ if (this.tolerant) {
+ this.recordError(error);
+ }
+ else {
+ throw error;
+ }
+ };
+ ErrorHandler.prototype.constructError = function (msg, column) {
+ var error = new Error(msg);
+ try {
+ throw error;
+ }
+ catch (base) {
+ /* istanbul ignore else */
+ if (Object.create && Object.defineProperty) {
+ error = Object.create(base);
+ Object.defineProperty(error, 'column', { value: column });
+ }
+ }
+ /* istanbul ignore next */
+ return error;
+ };
+ ErrorHandler.prototype.createError = function (index, line, col, description) {
+ var msg = 'Line ' + line + ': ' + description;
+ var error = this.constructError(msg, col);
+ error.index = index;
+ error.lineNumber = line;
+ error.description = description;
+ return error;
+ };
+ ErrorHandler.prototype.throwError = function (index, line, col, description) {
+ throw this.createError(index, line, col, description);
+ };
+ ErrorHandler.prototype.tolerateError = function (index, line, col, description) {
+ var error = this.createError(index, line, col, description);
+ if (this.tolerant) {
+ this.recordError(error);
+ }
+ else {
+ throw error;
+ }
+ };
+ return ErrorHandler;
+ }());
+ exports.ErrorHandler = ErrorHandler;
+
+
+/***/ },
+/* 11 */
+/***/ function(module, exports) {
+
+ "use strict";
+ Object.defineProperty(exports, "__esModule", { value: true });
+ // Error messages should be identical to V8.
+ exports.Messages = {
+ BadGetterArity: 'Getter must not have any formal parameters',
+ BadSetterArity: 'Setter must have exactly one formal parameter',
+ BadSetterRestParameter: 'Setter function argument must not be a rest parameter',
+ ConstructorIsAsync: 'Class constructor may not be an async method',
+ ConstructorSpecialMethod: 'Class constructor may not be an accessor',
+ DeclarationMissingInitializer: 'Missing initializer in %0 declaration',
+ DefaultRestParameter: 'Unexpected token =',
+ DuplicateBinding: 'Duplicate binding %0',
+ DuplicateConstructor: 'A class may only have one constructor',
+ DuplicateProtoProperty: 'Duplicate __proto__ fields are not allowed in object literals',
+ ForInOfLoopInitializer: '%0 loop variable declaration may not have an initializer',
+ GeneratorInLegacyContext: 'Generator declarations are not allowed in legacy contexts',
+ IllegalBreak: 'Illegal break statement',
+ IllegalContinue: 'Illegal continue statement',
+ IllegalExportDeclaration: 'Unexpected token',
+ IllegalImportDeclaration: 'Unexpected token',
+ IllegalLanguageModeDirective: 'Illegal \'use strict\' directive in function with non-simple parameter list',
+ IllegalReturn: 'Illegal return statement',
+ InvalidEscapedReservedWord: 'Keyword must not contain escaped characters',
+ InvalidHexEscapeSequence: 'Invalid hexadecimal escape sequence',
+ InvalidLHSInAssignment: 'Invalid left-hand side in assignment',
+ InvalidLHSInForIn: 'Invalid left-hand side in for-in',
+ InvalidLHSInForLoop: 'Invalid left-hand side in for-loop',
+ InvalidModuleSpecifier: 'Unexpected token',
+ InvalidRegExp: 'Invalid regular expression',
+ LetInLexicalBinding: 'let is disallowed as a lexically bound name',
+ MissingFromClause: 'Unexpected token',
+ MultipleDefaultsInSwitch: 'More than one default clause in switch statement',
+ NewlineAfterThrow: 'Illegal newline after throw',
+ NoAsAfterImportNamespace: 'Unexpected token',
+ NoCatchOrFinally: 'Missing catch or finally after try',
+ ParameterAfterRestParameter: 'Rest parameter must be last formal parameter',
+ Redeclaration: '%0 \'%1\' has already been declared',
+ StaticPrototype: 'Classes may not have static property named prototype',
+ StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode',
+ StrictDelete: 'Delete of an unqualified identifier in strict mode.',
+ StrictFunction: 'In strict mode code, functions can only be declared at top level or inside a block',
+ StrictFunctionName: 'Function name may not be eval or arguments in strict mode',
+ StrictLHSAssignment: 'Assignment to eval or arguments is not allowed in strict mode',
+ StrictLHSPostfix: 'Postfix increment/decrement may not have eval or arguments operand in strict mode',
+ StrictLHSPrefix: 'Prefix increment/decrement may not have eval or arguments operand in strict mode',
+ StrictModeWith: 'Strict mode code may not include a with statement',
+ StrictOctalLiteral: 'Octal literals are not allowed in strict mode.',
+ StrictParamDupe: 'Strict mode function may not have duplicate parameter names',
+ StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode',
+ StrictReservedWord: 'Use of future reserved word in strict mode',
+ StrictVarName: 'Variable name may not be eval or arguments in strict mode',
+ TemplateOctalLiteral: 'Octal literals are not allowed in template strings.',
+ UnexpectedEOS: 'Unexpected end of input',
+ UnexpectedIdentifier: 'Unexpected identifier',
+ UnexpectedNumber: 'Unexpected number',
+ UnexpectedReserved: 'Unexpected reserved word',
+ UnexpectedString: 'Unexpected string',
+ UnexpectedTemplate: 'Unexpected quasi %0',
+ UnexpectedToken: 'Unexpected token %0',
+ UnexpectedTokenIllegal: 'Unexpected token ILLEGAL',
+ UnknownLabel: 'Undefined label \'%0\'',
+ UnterminatedRegExp: 'Invalid regular expression: missing /'
+ };
+
+
+/***/ },
+/* 12 */
+/***/ function(module, exports, __webpack_require__) {
+
+ "use strict";
+ Object.defineProperty(exports, "__esModule", { value: true });
+ var assert_1 = __webpack_require__(9);
+ var character_1 = __webpack_require__(4);
+ var messages_1 = __webpack_require__(11);
+ function hexValue(ch) {
+ return '0123456789abcdef'.indexOf(ch.toLowerCase());
+ }
+ function octalValue(ch) {
+ return '01234567'.indexOf(ch);
+ }
+ var Scanner = (function () {
+ function Scanner(code, handler) {
+ this.source = code;
+ this.errorHandler = handler;
+ this.trackComment = false;
+ this.isModule = false;
+ this.length = code.length;
+ this.index = 0;
+ this.lineNumber = (code.length > 0) ? 1 : 0;
+ this.lineStart = 0;
+ this.curlyStack = [];
+ }
+ Scanner.prototype.saveState = function () {
+ return {
+ index: this.index,
+ lineNumber: this.lineNumber,
+ lineStart: this.lineStart
+ };
+ };
+ Scanner.prototype.restoreState = function (state) {
+ this.index = state.index;
+ this.lineNumber = state.lineNumber;
+ this.lineStart = state.lineStart;
+ };
+ Scanner.prototype.eof = function () {
+ return this.index >= this.length;
+ };
+ Scanner.prototype.throwUnexpectedToken = function (message) {
+ if (message === void 0) { message = messages_1.Messages.UnexpectedTokenIllegal; }
+ return this.errorHandler.throwError(this.index, this.lineNumber, this.index - this.lineStart + 1, message);
+ };
+ Scanner.prototype.tolerateUnexpectedToken = function (message) {
+ if (message === void 0) { message = messages_1.Messages.UnexpectedTokenIllegal; }
+ this.errorHandler.tolerateError(this.index, this.lineNumber, this.index - this.lineStart + 1, message);
+ };
+ // https://tc39.github.io/ecma262/#sec-comments
+ Scanner.prototype.skipSingleLineComment = function (offset) {
+ var comments = [];
+ var start, loc;
+ if (this.trackComment) {
+ comments = [];
+ start = this.index - offset;
+ loc = {
+ start: {
+ line: this.lineNumber,
+ column: this.index - this.lineStart - offset
+ },
+ end: {}
+ };
+ }
+ while (!this.eof()) {
+ var ch = this.source.charCodeAt(this.index);
+ ++this.index;
+ if (character_1.Character.isLineTerminator(ch)) {
+ if (this.trackComment) {
+ loc.end = {
+ line: this.lineNumber,
+ column: this.index - this.lineStart - 1
+ };
+ var entry = {
+ multiLine: false,
+ slice: [start + offset, this.index - 1],
+ range: [start, this.index - 1],
+ loc: loc
+ };
+ comments.push(entry);
+ }
+ if (ch === 13 && this.source.charCodeAt(this.index) === 10) {
+ ++this.index;
+ }
+ ++this.lineNumber;
+ this.lineStart = this.index;
+ return comments;
+ }
+ }
+ if (this.trackComment) {
+ loc.end = {
+ line: this.lineNumber,
+ column: this.index - this.lineStart
+ };
+ var entry = {
+ multiLine: false,
+ slice: [start + offset, this.index],
+ range: [start, this.index],
+ loc: loc
+ };
+ comments.push(entry);
+ }
+ return comments;
+ };
+ Scanner.prototype.skipMultiLineComment = function () {
+ var comments = [];
+ var start, loc;
+ if (this.trackComment) {
+ comments = [];
+ start = this.index - 2;
+ loc = {
+ start: {
+ line: this.lineNumber,
+ column: this.index - this.lineStart - 2
+ },
+ end: {}
+ };
+ }
+ while (!this.eof()) {
+ var ch = this.source.charCodeAt(this.index);
+ if (character_1.Character.isLineTerminator(ch)) {
+ if (ch === 0x0D && this.source.charCodeAt(this.index + 1) === 0x0A) {
+ ++this.index;
+ }
+ ++this.lineNumber;
+ ++this.index;
+ this.lineStart = this.index;
+ }
+ else if (ch === 0x2A) {
+ // Block comment ends with '*/'.
+ if (this.source.charCodeAt(this.index + 1) === 0x2F) {
+ this.index += 2;
+ if (this.trackComment) {
+ loc.end = {
+ line: this.lineNumber,
+ column: this.index - this.lineStart
+ };
+ var entry = {
+ multiLine: true,
+ slice: [start + 2, this.index - 2],
+ range: [start, this.index],
+ loc: loc
+ };
+ comments.push(entry);
+ }
+ return comments;
+ }
+ ++this.index;
+ }
+ else {
+ ++this.index;
+ }
+ }
+ // Ran off the end of the file - the whole thing is a comment
+ if (this.trackComment) {
+ loc.end = {
+ line: this.lineNumber,
+ column: this.index - this.lineStart
+ };
+ var entry = {
+ multiLine: true,
+ slice: [start + 2, this.index],
+ range: [start, this.index],
+ loc: loc
+ };
+ comments.push(entry);
+ }
+ this.tolerateUnexpectedToken();
+ return comments;
+ };
+ Scanner.prototype.scanComments = function () {
+ var comments;
+ if (this.trackComment) {
+ comments = [];
+ }
+ var start = (this.index === 0);
+ while (!this.eof()) {
+ var ch = this.source.charCodeAt(this.index);
+ if (character_1.Character.isWhiteSpace(ch)) {
+ ++this.index;
+ }
+ else if (character_1.Character.isLineTerminator(ch)) {
+ ++this.index;
+ if (ch === 0x0D && this.source.charCodeAt(this.index) === 0x0A) {
+ ++this.index;
+ }
+ ++this.lineNumber;
+ this.lineStart = this.index;
+ start = true;
+ }
+ else if (ch === 0x2F) {
+ ch = this.source.charCodeAt(this.index + 1);
+ if (ch === 0x2F) {
+ this.index += 2;
+ var comment = this.skipSingleLineComment(2);
+ if (this.trackComment) {
+ comments = comments.concat(comment);
+ }
+ start = true;
+ }
+ else if (ch === 0x2A) {
+ this.index += 2;
+ var comment = this.skipMultiLineComment();
+ if (this.trackComment) {
+ comments = comments.concat(comment);
+ }
+ }
+ else {
+ break;
+ }
+ }
+ else if (start && ch === 0x2D) {
+ // U+003E is '>'
+ if ((this.source.charCodeAt(this.index + 1) === 0x2D) && (this.source.charCodeAt(this.index + 2) === 0x3E)) {
+ // '-->' is a single-line comment
+ this.index += 3;
+ var comment = this.skipSingleLineComment(3);
+ if (this.trackComment) {
+ comments = comments.concat(comment);
+ }
+ }
+ else {
+ break;
+ }
+ }
+ else if (ch === 0x3C && !this.isModule) {
+ if (this.source.slice(this.index + 1, this.index + 4) === '!--') {
+ this.index += 4; // `<!--`
+ var comment = this.skipSingleLineComment(4);
+ if (this.trackComment) {
+ comments = comments.concat(comment);
+ }
+ }
+ else {
+ break;
+ }
+ }
+ else {
+ break;
+ }
+ }
+ return comments;
+ };
+ // https://tc39.github.io/ecma262/#sec-future-reserved-words
+ Scanner.prototype.isFutureReservedWord = function (id) {
+ switch (id) {
+ case 'enum':
+ case 'export':
+ case 'import':
+ case 'super':
+ return true;
+ default:
+ return false;
+ }
+ };
+ Scanner.prototype.isStrictModeReservedWord = function (id) {
+ switch (id) {
+ case 'implements':
+ case 'interface':
+ case 'package':
+ case 'private':
+ case 'protected':
+ case 'public':
+ case 'static':
+ case 'yield':
+ case 'let':
+ return true;
+ default:
+ return false;
+ }
+ };
+ Scanner.prototype.isRestrictedWord = function (id) {
+ return id === 'eval' || id === 'arguments';
+ };
+ // https://tc39.github.io/ecma262/#sec-keywords
+ Scanner.prototype.isKeyword = function (id) {
+ switch (id.length) {
+ case 2:
+ return (id === 'if') || (id === 'in') || (id === 'do');
+ case 3:
+ return (id === 'var') || (id === 'for') || (id === 'new') ||
+ (id === 'try') || (id === 'let');
+ case 4:
+ return (id === 'this') || (id === 'else') || (id === 'case') ||
+ (id === 'void') || (id === 'with') || (id === 'enum');
+ case 5:
+ return (id === 'while') || (id === 'break') || (id === 'catch') ||
+ (id === 'throw') || (id === 'const') || (id === 'yield') ||
+ (id === 'class') || (id === 'super');
+ case 6:
+ return (id === 'return') || (id === 'typeof') || (id === 'delete') ||
+ (id === 'switch') || (id === 'export') || (id === 'import');
+ case 7:
+ return (id === 'default') || (id === 'finally') || (id === 'extends');
+ case 8:
+ return (id === 'function') || (id === 'continue') || (id === 'debugger');
+ case 10:
+ return (id === 'instanceof');
+ default:
+ return false;
+ }
+ };
+ Scanner.prototype.codePointAt = function (i) {
+ var cp = this.source.charCodeAt(i);
+ if (cp >= 0xD800 && cp <= 0xDBFF) {
+ var second = this.source.charCodeAt(i + 1);
+ if (second >= 0xDC00 && second <= 0xDFFF) {
+ var first = cp;
+ cp = (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
+ }
+ }
+ return cp;
+ };
+ Scanner.prototype.scanHexEscape = function (prefix) {
+ var len = (prefix === 'u') ? 4 : 2;
+ var code = 0;
+ for (var i = 0; i < len; ++i) {
+ if (!this.eof() && character_1.Character.isHexDigit(this.source.charCodeAt(this.index))) {
+ code = code * 16 + hexValue(this.source[this.index++]);
+ }
+ else {
+ return null;
+ }
+ }
+ return String.fromCharCode(code);
+ };
+ Scanner.prototype.scanUnicodeCodePointEscape = function () {
+ var ch = this.source[this.index];
+ var code = 0;
+ // At least, one hex digit is required.
+ if (ch === '}') {
+ this.throwUnexpectedToken();
+ }
+ while (!this.eof()) {
+ ch = this.source[this.index++];
+ if (!character_1.Character.isHexDigit(ch.charCodeAt(0))) {
+ break;
+ }
+ code = code * 16 + hexValue(ch);
+ }
+ if (code > 0x10FFFF || ch !== '}') {
+ this.throwUnexpectedToken();
+ }
+ return character_1.Character.fromCodePoint(code);
+ };
+ Scanner.prototype.getIdentifier = function () {
+ var start = this.index++;
+ while (!this.eof()) {
+ var ch = this.source.charCodeAt(this.index);
+ if (ch === 0x5C) {
+ // Blackslash (U+005C) marks Unicode escape sequence.
+ this.index = start;
+ return this.getComplexIdentifier();
+ }
+ else if (ch >= 0xD800 && ch < 0xDFFF) {
+ // Need to handle surrogate pairs.
+ this.index = start;
+ return this.getComplexIdentifier();
+ }
+ if (character_1.Character.isIdentifierPart(ch)) {
+ ++this.index;
+ }
+ else {
+ break;
+ }
+ }
+ return this.source.slice(start, this.index);
+ };
+ Scanner.prototype.getComplexIdentifier = function () {
+ var cp = this.codePointAt(this.index);
+ var id = character_1.Character.fromCodePoint(cp);
+ this.index += id.length;
+ // '\u' (U+005C, U+0075) denotes an escaped character.
+ var ch;
+ if (cp === 0x5C) {
+ if (this.source.charCodeAt(this.index) !== 0x75) {
+ this.throwUnexpectedToken();
+ }
+ ++this.index;
+ if (this.source[this.index] === '{') {
+ ++this.index;
+ ch = this.scanUnicodeCodePointEscape();
+ }
+ else {
+ ch = this.scanHexEscape('u');
+ if (ch === null || ch === '\\' || !character_1.Character.isIdentifierStart(ch.charCodeAt(0))) {
+ this.throwUnexpectedToken();
+ }
+ }
+ id = ch;
+ }
+ while (!this.eof()) {
+ cp = this.codePointAt(this.index);
+ if (!character_1.Character.isIdentifierPart(cp)) {
+ break;
+ }
+ ch = character_1.Character.fromCodePoint(cp);
+ id += ch;
+ this.index += ch.length;
+ // '\u' (U+005C, U+0075) denotes an escaped character.
+ if (cp === 0x5C) {
+ id = id.substr(0, id.length - 1);
+ if (this.source.charCodeAt(this.index) !== 0x75) {
+ this.throwUnexpectedToken();
+ }
+ ++this.index;
+ if (this.source[this.index] === '{') {
+ ++this.index;
+ ch = this.scanUnicodeCodePointEscape();
+ }
+ else {
+ ch = this.scanHexEscape('u');
+ if (ch === null || ch === '\\' || !character_1.Character.isIdentifierPart(ch.charCodeAt(0))) {
+ this.throwUnexpectedToken();
+ }
+ }
+ id += ch;
+ }
+ }
+ return id;
+ };
+ Scanner.prototype.octalToDecimal = function (ch) {
+ // \0 is not octal escape sequence
+ var octal = (ch !== '0');
+ var code = octalValue(ch);
+ if (!this.eof() && character_1.Character.isOctalDigit(this.source.charCodeAt(this.index))) {
+ octal = true;
+ code = code * 8 + octalValue(this.source[this.index++]);
+ // 3 digits are only allowed when string starts
+ // with 0, 1, 2, 3
+ if ('0123'.indexOf(ch) >= 0 && !this.eof() && character_1.Character.isOctalDigit(this.source.charCodeAt(this.index))) {
+ code = code * 8 + octalValue(this.source[this.index++]);
+ }
+ }
+ return {
+ code: code,
+ octal: octal
+ };
+ };
+ // https://tc39.github.io/ecma262/#sec-names-and-keywords
+ Scanner.prototype.scanIdentifier = function () {
+ var type;
+ var start = this.index;
+ // Backslash (U+005C) starts an escaped character.
+ var id = (this.source.charCodeAt(start) === 0x5C) ? this.getComplexIdentifier() : this.getIdentifier();
+ // There is no keyword or literal with only one character.
+ // Thus, it must be an identifier.
+ if (id.length === 1) {
+ type = 3 /* Identifier */;
+ }
+ else if (this.isKeyword(id)) {
+ type = 4 /* Keyword */;
+ }
+ else if (id === 'null') {
+ type = 5 /* NullLiteral */;
+ }
+ else if (id === 'true' || id === 'false') {
+ type = 1 /* BooleanLiteral */;
+ }
+ else {
+ type = 3 /* Identifier */;
+ }
+ if (type !== 3 /* Identifier */ && (start + id.length !== this.index)) {
+ var restore = this.index;
+ this.index = start;
+ this.tolerateUnexpectedToken(messages_1.Messages.InvalidEscapedReservedWord);
+ this.index = restore;
+ }
+ return {
+ type: type,
+ value: id,
+ lineNumber: this.lineNumber,
+ lineStart: this.lineStart,
+ start: start,
+ end: this.index
+ };
+ };
+ // https://tc39.github.io/ecma262/#sec-punctuators
+ Scanner.prototype.scanPunctuator = function () {
+ var start = this.index;
+ // Check for most common single-character punctuators.
+ var str = this.source[this.index];
+ switch (str) {
+ case '(':
+ case '{':
+ if (str === '{') {
+ this.curlyStack.push('{');
+ }
+ ++this.index;
+ break;
+ case '.':
+ ++this.index;
+ if (this.source[this.index] === '.' && this.source[this.index + 1] === '.') {
+ // Spread operator: ...
+ this.index += 2;
+ str = '...';
+ }
+ break;
+ case '}':
+ ++this.index;
+ this.curlyStack.pop();
+ break;
+ case ')':
+ case ';':
+ case ',':
+ case '[':
+ case ']':
+ case ':':
+ case '?':
+ case '~':
+ ++this.index;
+ break;
+ default:
+ // 4-character punctuator.
+ str = this.source.substr(this.index, 4);
+ if (str === '>>>=') {
+ this.index += 4;
+ }
+ else {
+ // 3-character punctuators.
+ str = str.substr(0, 3);
+ if (str === '===' || str === '!==' || str === '>>>' ||
+ str === '<<=' || str === '>>=' || str === '**=') {
+ this.index += 3;
+ }
+ else {
+ // 2-character punctuators.
+ str = str.substr(0, 2);
+ if (str === '&&' || str === '||' || str === '==' || str === '!=' ||
+ str === '+=' || str === '-=' || str === '*=' || str === '/=' ||
+ str === '++' || str === '--' || str === '<<' || str === '>>' ||
+ str === '&=' || str === '|=' || str === '^=' || str === '%=' ||
+ str === '<=' || str === '>=' || str === '=>' || str === '**') {
+ this.index += 2;
+ }
+ else {
+ // 1-character punctuators.
+ str = this.source[this.index];
+ if ('<>=!+-*%&|^/'.indexOf(str) >= 0) {
+ ++this.index;
+ }
+ }
+ }
+ }
+ }
+ if (this.index === start) {
+ this.throwUnexpectedToken();
+ }
+ return {
+ type: 7 /* Punctuator */,
+ value: str,
+ lineNumber: this.lineNumber,
+ lineStart: this.lineStart,
+ start: start,
+ end: this.index
+ };
+ };
+ // https://tc39.github.io/ecma262/#sec-literals-numeric-literals
+ Scanner.prototype.scanHexLiteral = function (start) {
+ var num = '';
+ while (!this.eof()) {
+ if (!character_1.Character.isHexDigit(this.source.charCodeAt(this.index))) {
+ break;
+ }
+ num += this.source[this.index++];
+ }
+ if (num.length === 0) {
+ this.throwUnexpectedToken();
+ }
+ if (character_1.Character.isIdentifierStart(this.source.charCodeAt(this.index))) {
+ this.throwUnexpectedToken();
+ }
+ return {
+ type: 6 /* NumericLiteral */,
+ value: parseInt('0x' + num, 16),
+ lineNumber: this.lineNumber,
+ lineStart: this.lineStart,
+ start: start,
+ end: this.index
+ };
+ };
+ Scanner.prototype.scanBinaryLiteral = function (start) {
+ var num = '';
+ var ch;
+ while (!this.eof()) {
+ ch = this.source[this.index];
+ if (ch !== '0' && ch !== '1') {
+ break;
+ }
+ num += this.source[this.index++];
+ }
+ if (num.length === 0) {
+ // only 0b or 0B
+ this.throwUnexpectedToken();
+ }
+ if (!this.eof()) {
+ ch = this.source.charCodeAt(this.index);
+ /* istanbul ignore else */
+ if (character_1.Character.isIdentifierStart(ch) || character_1.Character.isDecimalDigit(ch)) {
+ this.throwUnexpectedToken();
+ }
+ }
+ return {
+ type: 6 /* NumericLiteral */,
+ value: parseInt(num, 2),
+ lineNumber: this.lineNumber,
+ lineStart: this.lineStart,
+ start: start,
+ end: this.index
+ };
+ };
+ Scanner.prototype.scanOctalLiteral = function (prefix, start) {
+ var num = '';
+ var octal = false;
+ if (character_1.Character.isOctalDigit(prefix.charCodeAt(0))) {
+ octal = true;
+ num = '0' + this.source[this.index++];
+ }
+ else {
+ ++this.index;
+ }
+ while (!this.eof()) {
+ if (!character_1.Character.isOctalDigit(this.source.charCodeAt(this.index))) {
+ break;
+ }
+ num += this.source[this.index++];
+ }
+ if (!octal && num.length === 0) {
+ // only 0o or 0O
+ this.throwUnexpectedToken();
+ }
+ if (character_1.Character.isIdentifierStart(this.source.charCodeAt(this.index)) || character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+ this.throwUnexpectedToken();
+ }
+ return {
+ type: 6 /* NumericLiteral */,
+ value: parseInt(num, 8),
+ octal: octal,
+ lineNumber: this.lineNumber,
+ lineStart: this.lineStart,
+ start: start,
+ end: this.index
+ };
+ };
+ Scanner.prototype.isImplicitOctalLiteral = function () {
+ // Implicit octal, unless there is a non-octal digit.
+ // (Annex B.1.1 on Numeric Literals)
+ for (var i = this.index + 1; i < this.length; ++i) {
+ var ch = this.source[i];
+ if (ch === '8' || ch === '9') {
+ return false;
+ }
+ if (!character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
+ return true;
+ }
+ }
+ return true;
+ };
+ Scanner.prototype.scanNumericLiteral = function () {
+ var start = this.index;
+ var ch = this.source[start];
+ assert_1.assert(character_1.Character.isDecimalDigit(ch.charCodeAt(0)) || (ch === '.'), 'Numeric literal must start with a decimal digit or a decimal point');
+ var num = '';
+ if (ch !== '.') {
+ num = this.source[this.index++];
+ ch = this.source[this.index];
+ // Hex number starts with '0x'.
+ // Octal number starts with '0'.
+ // Octal number in ES6 starts with '0o'.
+ // Binary number in ES6 starts with '0b'.
+ if (num === '0') {
+ if (ch === 'x' || ch === 'X') {
+ ++this.index;
+ return this.scanHexLiteral(start);
+ }
+ if (ch === 'b' || ch === 'B') {
+ ++this.index;
+ return this.scanBinaryLiteral(start);
+ }
+ if (ch === 'o' || ch === 'O') {
+ return this.scanOctalLiteral(ch, start);
+ }
+ if (ch && character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
+ if (this.isImplicitOctalLiteral()) {
+ return this.scanOctalLiteral(ch, start);
+ }
+ }
+ }
+ while (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+ num += this.source[this.index++];
+ }
+ ch = this.source[this.index];
+ }
+ if (ch === '.') {
+ num += this.source[this.index++];
+ while (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+ num += this.source[this.index++];
+ }
+ ch = this.source[this.index];
+ }
+ if (ch === 'e' || ch === 'E') {
+ num += this.source[this.index++];
+ ch = this.source[this.index];
+ if (ch === '+' || ch === '-') {
+ num += this.source[this.index++];
+ }
+ if (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+ while (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+ num += this.source[this.index++];
+ }
+ }
+ else {
+ this.throwUnexpectedToken();
+ }
+ }
+ if (character_1.Character.isIdentifierStart(this.source.charCodeAt(this.index))) {
+ this.throwUnexpectedToken();
+ }
+ return {
+ type: 6 /* NumericLiteral */,
+ value: parseFloat(num),
+ lineNumber: this.lineNumber,
+ lineStart: this.lineStart,
+ start: start,
+ end: this.index
+ };
+ };
+ // https://tc39.github.io/ecma262/#sec-literals-string-literals
+ Scanner.prototype.scanStringLiteral = function () {
+ var start = this.index;
+ var quote = this.source[start];
+ assert_1.assert((quote === '\'' || quote === '"'), 'String literal must starts with a quote');
+ ++this.index;
+ var octal = false;
+ var str = '';
+ while (!this.eof()) {
+ var ch = this.source[this.index++];
+ if (ch === quote) {
+ quote = '';
+ break;
+ }
+ else if (ch === '\\') {
+ ch = this.source[this.index++];
+ if (!ch || !character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+ switch (ch) {
+ case 'u':
+ if (this.source[this.index] === '{') {
+ ++this.index;
+ str += this.scanUnicodeCodePointEscape();
+ }
+ else {
+ var unescaped_1 = this.scanHexEscape(ch);
+ if (unescaped_1 === null) {
+ this.throwUnexpectedToken();
+ }
+ str += unescaped_1;
+ }
+ break;
+ case 'x':
+ var unescaped = this.scanHexEscape(ch);
+ if (unescaped === null) {
+ this.throwUnexpectedToken(messages_1.Messages.InvalidHexEscapeSequence);
+ }
+ str += unescaped;
+ break;
+ case 'n':
+ str += '\n';
+ break;
+ case 'r':
+ str += '\r';
+ break;
+ case 't':
+ str += '\t';
+ break;
+ case 'b':
+ str += '\b';
+ break;
+ case 'f':
+ str += '\f';
+ break;
+ case 'v':
+ str += '\x0B';
+ break;
+ case '8':
+ case '9':
+ str += ch;
+ this.tolerateUnexpectedToken();
+ break;
+ default:
+ if (ch && character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
+ var octToDec = this.octalToDecimal(ch);
+ octal = octToDec.octal || octal;
+ str += String.fromCharCode(octToDec.code);
+ }
+ else {
+ str += ch;
+ }
+ break;
+ }
+ }
+ else {
+ ++this.lineNumber;
+ if (ch === '\r' && this.source[this.index] === '\n') {
+ ++this.index;
+ }
+ this.lineStart = this.index;
+ }
+ }
+ else if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+ break;
+ }
+ else {
+ str += ch;
+ }
+ }
+ if (quote !== '') {
+ this.index = start;
+ this.throwUnexpectedToken();
+ }
+ return {
+ type: 8 /* StringLiteral */,
+ value: str,
+ octal: octal,
+ lineNumber: this.lineNumber,
+ lineStart: this.lineStart,
+ start: start,
+ end: this.index
+ };
+ };
+ // https://tc39.github.io/ecma262/#sec-template-literal-lexical-components
+ Scanner.prototype.scanTemplate = function () {
+ var cooked = '';
+ var terminated = false;
+ var start = this.index;
+ var head = (this.source[start] === '`');
+ var tail = false;
+ var rawOffset = 2;
+ ++this.index;
+ while (!this.eof()) {
+ var ch = this.source[this.index++];
+ if (ch === '`') {
+ rawOffset = 1;
+ tail = true;
+ terminated = true;
+ break;
+ }
+ else if (ch === '$') {
+ if (this.source[this.index] === '{') {
+ this.curlyStack.push('${');
+ ++this.index;
+ terminated = true;
+ break;
+ }
+ cooked += ch;
+ }
+ else if (ch === '\\') {
+ ch = this.source[this.index++];
+ if (!character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+ switch (ch) {
+ case 'n':
+ cooked += '\n';
+ break;
+ case 'r':
+ cooked += '\r';
+ break;
+ case 't':
+ cooked += '\t';
+ break;
+ case 'u':
+ if (this.source[this.index] === '{') {
+ ++this.index;
+ cooked += this.scanUnicodeCodePointEscape();
+ }
+ else {
+ var restore = this.index;
+ var unescaped_2 = this.scanHexEscape(ch);
+ if (unescaped_2 !== null) {
+ cooked += unescaped_2;
+ }
+ else {
+ this.index = restore;
+ cooked += ch;
+ }
+ }
+ break;
+ case 'x':
+ var unescaped = this.scanHexEscape(ch);
+ if (unescaped === null) {
+ this.throwUnexpectedToken(messages_1.Messages.InvalidHexEscapeSequence);
+ }
+ cooked += unescaped;
+ break;
+ case 'b':
+ cooked += '\b';
+ break;
+ case 'f':
+ cooked += '\f';
+ break;
+ case 'v':
+ cooked += '\v';
+ break;
+ default:
+ if (ch === '0') {
+ if (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+ // Illegal: \01 \02 and so on
+ this.throwUnexpectedToken(messages_1.Messages.TemplateOctalLiteral);
+ }
+ cooked += '\0';
+ }
+ else if (character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
+ // Illegal: \1 \2
+ this.throwUnexpectedToken(messages_1.Messages.TemplateOctalLiteral);
+ }
+ else {
+ cooked += ch;
+ }
+ break;
+ }
+ }
+ else {
+ ++this.lineNumber;
+ if (ch === '\r' && this.source[this.index] === '\n') {
+ ++this.index;
+ }
+ this.lineStart = this.index;
+ }
+ }
+ else if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+ ++this.lineNumber;
+ if (ch === '\r' && this.source[this.index] === '\n') {
+ ++this.index;
+ }
+ this.lineStart = this.index;
+ cooked += '\n';
+ }
+ else {
+ cooked += ch;
+ }
+ }
+ if (!terminated) {
+ this.throwUnexpectedToken();
+ }
+ if (!head) {
+ this.curlyStack.pop();
+ }
+ return {
+ type: 10 /* Template */,
+ value: this.source.slice(start + 1, this.index - rawOffset),
+ cooked: cooked,
+ head: head,
+ tail: tail,
+ lineNumber: this.lineNumber,
+ lineStart: this.lineStart,
+ start: start,
+ end: this.index
+ };
+ };
+ // https://tc39.github.io/ecma262/#sec-literals-regular-expression-literals
+ Scanner.prototype.testRegExp = function (pattern, flags) {
+ // The BMP character to use as a replacement for astral symbols when
+ // translating an ES6 "u"-flagged pattern to an ES5-compatible
+ // approximation.
+ // Note: replacing with '\uFFFF' enables false positives in unlikely
+ // scenarios. For example, `[\u{1044f}-\u{10440}]` is an invalid
+ // pattern that would not be detected by this substitution.
+ var astralSubstitute = '\uFFFF';
+ var tmp = pattern;
+ var self = this;
+ if (flags.indexOf('u') >= 0) {
+ tmp = tmp
+ .replace(/\\u\{([0-9a-fA-F]+)\}|\\u([a-fA-F0-9]{4})/g, function ($0, $1, $2) {
+ var codePoint = parseInt($1 || $2, 16);
+ if (codePoint > 0x10FFFF) {
+ self.throwUnexpectedToken(messages_1.Messages.InvalidRegExp);
+ }
+ if (codePoint <= 0xFFFF) {
+ return String.fromCharCode(codePoint);
+ }
+ return astralSubstitute;
+ })
+ .replace(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g, astralSubstitute);
+ }
+ // First, detect invalid regular expressions.
+ try {
+ RegExp(tmp);
+ }
+ catch (e) {
+ this.throwUnexpectedToken(messages_1.Messages.InvalidRegExp);
+ }
+ // Return a regular expression object for this pattern-flag pair, or
+ // `null` in case the current environment doesn't support the flags it
+ // uses.
+ try {
+ return new RegExp(pattern, flags);
+ }
+ catch (exception) {
+ /* istanbul ignore next */
+ return null;
+ }
+ };
+ Scanner.prototype.scanRegExpBody = function () {
+ var ch = this.source[this.index];
+ assert_1.assert(ch === '/', 'Regular expression literal must start with a slash');
+ var str = this.source[this.index++];
+ var classMarker = false;
+ var terminated = false;
+ while (!this.eof()) {
+ ch = this.source[this.index++];
+ str += ch;
+ if (ch === '\\') {
+ ch = this.source[this.index++];
+ // https://tc39.github.io/ecma262/#sec-literals-regular-expression-literals
+ if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+ this.throwUnexpectedToken(messages_1.Messages.UnterminatedRegExp);
+ }
+ str += ch;
+ }
+ else if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+ this.throwUnexpectedToken(messages_1.Messages.UnterminatedRegExp);
+ }
+ else if (classMarker) {
+ if (ch === ']') {
+ classMarker = false;
+ }
+ }
+ else {
+ if (ch === '/') {
+ terminated = true;
+ break;
+ }
+ else if (ch === '[') {
+ classMarker = true;
+ }
+ }
+ }
+ if (!terminated) {
+ this.throwUnexpectedToken(messages_1.Messages.UnterminatedRegExp);
+ }
+ // Exclude leading and trailing slash.
+ return str.substr(1, str.length - 2);
+ };
+ Scanner.prototype.scanRegExpFlags = function () {
+ var str = '';
+ var flags = '';
+ while (!this.eof()) {
+ var ch = this.source[this.index];
+ if (!character_1.Character.isIdentifierPart(ch.charCodeAt(0))) {
+ break;
+ }
+ ++this.index;
+ if (ch === '\\' && !this.eof()) {
+ ch = this.source[this.index];
+ if (ch === 'u') {
+ ++this.index;
+ var restore = this.index;
+ var char = this.scanHexEscape('u');
+ if (char !== null) {
+ flags += char;
+ for (str += '\\u'; restore < this.index; ++restore) {
+ str += this.source[restore];
+ }
+ }
+ else {
+ this.index = restore;
+ flags += 'u';
+ str += '\\u';
+ }
+ this.tolerateUnexpectedToken();
+ }
+ else {
+ str += '\\';
+ this.tolerateUnexpectedToken();
+ }
+ }
+ else {
+ flags += ch;
+ str += ch;
+ }
+ }
+ return flags;
+ };
+ Scanner.prototype.scanRegExp = function () {
+ var start = this.index;
+ var pattern = this.scanRegExpBody();
+ var flags = this.scanRegExpFlags();
+ var value = this.testRegExp(pattern, flags);
+ return {
+ type: 9 /* RegularExpression */,
+ value: '',
+ pattern: pattern,
+ flags: flags,
+ regex: value,
+ lineNumber: this.lineNumber,
+ lineStart: this.lineStart,
+ start: start,
+ end: this.index
+ };
+ };
+ Scanner.prototype.lex = function () {
+ if (this.eof()) {
+ return {
+ type: 2 /* EOF */,
+ value: '',
+ lineNumber: this.lineNumber,
+ lineStart: this.lineStart,
+ start: this.index,
+ end: this.index
+ };
+ }
+ var cp = this.source.charCodeAt(this.index);
+ if (character_1.Character.isIdentifierStart(cp)) {
+ return this.scanIdentifier();
+ }
+ // Very common: ( and ) and ;
+ if (cp === 0x28 || cp === 0x29 || cp === 0x3B) {
+ return this.scanPunctuator();
+ }
+ // String literal starts with single quote (U+0027) or double quote (U+0022).
+ if (cp === 0x27 || cp === 0x22) {
+ return this.scanStringLiteral();
+ }
+ // Dot (.) U+002E can also start a floating-point number, hence the need
+ // to check the next character.
+ if (cp === 0x2E) {
+ if (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index + 1))) {
+ return this.scanNumericLiteral();
+ }
+ return this.scanPunctuator();
+ }
+ if (character_1.Character.isDecimalDigit(cp)) {
+ return this.scanNumericLiteral();
+ }
+ // Template literals start with ` (U+0060) for template head
+ // or } (U+007D) for template middle or template tail.
+ if (cp === 0x60 || (cp === 0x7D && this.curlyStack[this.curlyStack.length - 1] === '${')) {
+ return this.scanTemplate();
+ }
+ // Possible identifier start in a surrogate pair.
+ if (cp >= 0xD800 && cp < 0xDFFF) {
+ if (character_1.Character.isIdentifierStart(this.codePointAt(this.index))) {
+ return this.scanIdentifier();
+ }
+ }
+ return this.scanPunctuator();
+ };
+ return Scanner;
+ }());
+ exports.Scanner = Scanner;
+
+
+/***/ },
+/* 13 */
+/***/ function(module, exports) {
+
+ "use strict";
+ Object.defineProperty(exports, "__esModule", { value: true });
+ exports.TokenName = {};
+ exports.TokenName[1 /* BooleanLiteral */] = 'Boolean';
+ exports.TokenName[2 /* EOF */] = '<end>';
+ exports.TokenName[3 /* Identifier */] = 'Identifier';
+ exports.TokenName[4 /* Keyword */] = 'Keyword';
+ exports.TokenName[5 /* NullLiteral */] = 'Null';
+ exports.TokenName[6 /* NumericLiteral */] = 'Numeric';
+ exports.TokenName[7 /* Punctuator */] = 'Punctuator';
+ exports.TokenName[8 /* StringLiteral */] = 'String';
+ exports.TokenName[9 /* RegularExpression */] = 'RegularExpression';
+ exports.TokenName[10 /* Template */] = 'Template';
+
+
+/***/ },
+/* 14 */
+/***/ function(module, exports) {
+
+ "use strict";
+ // Generated by generate-xhtml-entities.js. DO NOT MODIFY!
+ Object.defineProperty(exports, "__esModule", { value: true });
+ exports.XHTMLEntities = {
+ quot: '\u0022',
+ amp: '\u0026',
+ apos: '\u0027',
+ gt: '\u003E',
+ nbsp: '\u00A0',
+ iexcl: '\u00A1',
+ cent: '\u00A2',
+ pound: '\u00A3',
+ curren: '\u00A4',
+ yen: '\u00A5',
+ brvbar: '\u00A6',
+ sect: '\u00A7',
+ uml: '\u00A8',
+ copy: '\u00A9',
+ ordf: '\u00AA',
+ laquo: '\u00AB',
+ not: '\u00AC',
+ shy: '\u00AD',
+ reg: '\u00AE',
+ macr: '\u00AF',
+ deg: '\u00B0',
+ plusmn: '\u00B1',
+ sup2: '\u00B2',
+ sup3: '\u00B3',
+ acute: '\u00B4',
+ micro: '\u00B5',
+ para: '\u00B6',
+ middot: '\u00B7',
+ cedil: '\u00B8',
+ sup1: '\u00B9',
+ ordm: '\u00BA',
+ raquo: '\u00BB',
+ frac14: '\u00BC',
+ frac12: '\u00BD',
+ frac34: '\u00BE',
+ iquest: '\u00BF',
+ Agrave: '\u00C0',
+ Aacute: '\u00C1',
+ Acirc: '\u00C2',
+ Atilde: '\u00C3',
+ Auml: '\u00C4',
+ Aring: '\u00C5',
+ AElig: '\u00C6',
+ Ccedil: '\u00C7',
+ Egrave: '\u00C8',
+ Eacute: '\u00C9',
+ Ecirc: '\u00CA',
+ Euml: '\u00CB',
+ Igrave: '\u00CC',
+ Iacute: '\u00CD',
+ Icirc: '\u00CE',
+ Iuml: '\u00CF',
+ ETH: '\u00D0',
+ Ntilde: '\u00D1',
+ Ograve: '\u00D2',
+ Oacute: '\u00D3',
+ Ocirc: '\u00D4',
+ Otilde: '\u00D5',
+ Ouml: '\u00D6',
+ times: '\u00D7',
+ Oslash: '\u00D8',
+ Ugrave: '\u00D9',
+ Uacute: '\u00DA',
+ Ucirc: '\u00DB',
+ Uuml: '\u00DC',
+ Yacute: '\u00DD',
+ THORN: '\u00DE',
+ szlig: '\u00DF',
+ agrave: '\u00E0',
+ aacute: '\u00E1',
+ acirc: '\u00E2',
+ atilde: '\u00E3',
+ auml: '\u00E4',
+ aring: '\u00E5',
+ aelig: '\u00E6',
+ ccedil: '\u00E7',
+ egrave: '\u00E8',
+ eacute: '\u00E9',
+ ecirc: '\u00EA',
+ euml: '\u00EB',
+ igrave: '\u00EC',
+ iacute: '\u00ED',
+ icirc: '\u00EE',
+ iuml: '\u00EF',
+ eth: '\u00F0',
+ ntilde: '\u00F1',
+ ograve: '\u00F2',
+ oacute: '\u00F3',
+ ocirc: '\u00F4',
+ otilde: '\u00F5',
+ ouml: '\u00F6',
+ divide: '\u00F7',
+ oslash: '\u00F8',
+ ugrave: '\u00F9',
+ uacute: '\u00FA',
+ ucirc: '\u00FB',
+ uuml: '\u00FC',
+ yacute: '\u00FD',
+ thorn: '\u00FE',
+ yuml: '\u00FF',
+ OElig: '\u0152',
+ oelig: '\u0153',
+ Scaron: '\u0160',
+ scaron: '\u0161',
+ Yuml: '\u0178',
+ fnof: '\u0192',
+ circ: '\u02C6',
+ tilde: '\u02DC',
+ Alpha: '\u0391',
+ Beta: '\u0392',
+ Gamma: '\u0393',
+ Delta: '\u0394',
+ Epsilon: '\u0395',
+ Zeta: '\u0396',
+ Eta: '\u0397',
+ Theta: '\u0398',
+ Iota: '\u0399',
+ Kappa: '\u039A',
+ Lambda: '\u039B',
+ Mu: '\u039C',
+ Nu: '\u039D',
+ Xi: '\u039E',
+ Omicron: '\u039F',
+ Pi: '\u03A0',
+ Rho: '\u03A1',
+ Sigma: '\u03A3',
+ Tau: '\u03A4',
+ Upsilon: '\u03A5',
+ Phi: '\u03A6',
+ Chi: '\u03A7',
+ Psi: '\u03A8',
+ Omega: '\u03A9',
+ alpha: '\u03B1',
+ beta: '\u03B2',
+ gamma: '\u03B3',
+ delta: '\u03B4',
+ epsilon: '\u03B5',
+ zeta: '\u03B6',
+ eta: '\u03B7',
+ theta: '\u03B8',
+ iota: '\u03B9',
+ kappa: '\u03BA',
+ lambda: '\u03BB',
+ mu: '\u03BC',
+ nu: '\u03BD',
+ xi: '\u03BE',
+ omicron: '\u03BF',
+ pi: '\u03C0',
+ rho: '\u03C1',
+ sigmaf: '\u03C2',
+ sigma: '\u03C3',
+ tau: '\u03C4',
+ upsilon: '\u03C5',
+ phi: '\u03C6',
+ chi: '\u03C7',
+ psi: '\u03C8',
+ omega: '\u03C9',
+ thetasym: '\u03D1',
+ upsih: '\u03D2',
+ piv: '\u03D6',
+ ensp: '\u2002',
+ emsp: '\u2003',
+ thinsp: '\u2009',
+ zwnj: '\u200C',
+ zwj: '\u200D',
+ lrm: '\u200E',
+ rlm: '\u200F',
+ ndash: '\u2013',
+ mdash: '\u2014',
+ lsquo: '\u2018',
+ rsquo: '\u2019',
+ sbquo: '\u201A',
+ ldquo: '\u201C',
+ rdquo: '\u201D',
+ bdquo: '\u201E',
+ dagger: '\u2020',
+ Dagger: '\u2021',
+ bull: '\u2022',
+ hellip: '\u2026',
+ permil: '\u2030',
+ prime: '\u2032',
+ Prime: '\u2033',
+ lsaquo: '\u2039',
+ rsaquo: '\u203A',
+ oline: '\u203E',
+ frasl: '\u2044',
+ euro: '\u20AC',
+ image: '\u2111',
+ weierp: '\u2118',
+ real: '\u211C',
+ trade: '\u2122',
+ alefsym: '\u2135',
+ larr: '\u2190',
+ uarr: '\u2191',
+ rarr: '\u2192',
+ darr: '\u2193',
+ harr: '\u2194',
+ crarr: '\u21B5',
+ lArr: '\u21D0',
+ uArr: '\u21D1',
+ rArr: '\u21D2',
+ dArr: '\u21D3',
+ hArr: '\u21D4',
+ forall: '\u2200',
+ part: '\u2202',
+ exist: '\u2203',
+ empty: '\u2205',
+ nabla: '\u2207',
+ isin: '\u2208',
+ notin: '\u2209',
+ ni: '\u220B',
+ prod: '\u220F',
+ sum: '\u2211',
+ minus: '\u2212',
+ lowast: '\u2217',
+ radic: '\u221A',
+ prop: '\u221D',
+ infin: '\u221E',
+ ang: '\u2220',
+ and: '\u2227',
+ or: '\u2228',
+ cap: '\u2229',
+ cup: '\u222A',
+ int: '\u222B',
+ there4: '\u2234',
+ sim: '\u223C',
+ cong: '\u2245',
+ asymp: '\u2248',
+ ne: '\u2260',
+ equiv: '\u2261',
+ le: '\u2264',
+ ge: '\u2265',
+ sub: '\u2282',
+ sup: '\u2283',
+ nsub: '\u2284',
+ sube: '\u2286',
+ supe: '\u2287',
+ oplus: '\u2295',
+ otimes: '\u2297',
+ perp: '\u22A5',
+ sdot: '\u22C5',
+ lceil: '\u2308',
+ rceil: '\u2309',
+ lfloor: '\u230A',
+ rfloor: '\u230B',
+ loz: '\u25CA',
+ spades: '\u2660',
+ clubs: '\u2663',
+ hearts: '\u2665',
+ diams: '\u2666',
+ lang: '\u27E8',
+ rang: '\u27E9'
+ };
+
+
+/***/ },
+/* 15 */
+/***/ function(module, exports, __webpack_require__) {
+
+ "use strict";
+ Object.defineProperty(exports, "__esModule", { value: true });
+ var error_handler_1 = __webpack_require__(10);
+ var scanner_1 = __webpack_require__(12);
+ var token_1 = __webpack_require__(13);
+ var Reader = (function () {
+ function Reader() {
+ this.values = [];
+ this.curly = this.paren = -1;
+ }
+ // A function following one of those tokens is an expression.
+ Reader.prototype.beforeFunctionExpression = function (t) {
+ return ['(', '{', '[', 'in', 'typeof', 'instanceof', 'new',
+ 'return', 'case', 'delete', 'throw', 'void',
+ // assignment operators
+ '=', '+=', '-=', '*=', '**=', '/=', '%=', '<<=', '>>=', '>>>=',
+ '&=', '|=', '^=', ',',
+ // binary/unary operators
+ '+', '-', '*', '**', '/', '%', '++', '--', '<<', '>>', '>>>', '&',
+ '|', '^', '!', '~', '&&', '||', '?', ':', '===', '==', '>=',
+ '<=', '<', '>', '!=', '!=='].indexOf(t) >= 0;
+ };
+ // Determine if forward slash (/) is an operator or part of a regular expression
+ // https://github.com/mozilla/sweet.js/wiki/design
+ Reader.prototype.isRegexStart = function () {
+ var previous = this.values[this.values.length - 1];
+ var regex = (previous !== null);
+ switch (previous) {
+ case 'this':
+ case ']':
+ regex = false;
+ break;
+ case ')':
+ var keyword = this.values[this.paren - 1];
+ regex = (keyword === 'if' || keyword === 'while' || keyword === 'for' || keyword === 'with');
+ break;
+ case '}':
+ // Dividing a function by anything makes little sense,
+ // but we have to check for that.
+ regex = false;
+ if (this.values[this.curly - 3] === 'function') {
+ // Anonymous function, e.g. function(){} /42
+ var check = this.values[this.curly - 4];
+ regex = check ? !this.beforeFunctionExpression(check) : false;
+ }
+ else if (this.values[this.curly - 4] === 'function') {
+ // Named function, e.g. function f(){} /42/
+ var check = this.values[this.curly - 5];
+ regex = check ? !this.beforeFunctionExpression(check) : true;
+ }
+ break;
+ default:
+ break;
+ }
+ return regex;
+ };
+ Reader.prototype.push = function (token) {
+ if (token.type === 7 /* Punctuator */ || token.type === 4 /* Keyword */) {
+ if (token.value === '{') {
+ this.curly = this.values.length;
+ }
+ else if (token.value === '(') {
+ this.paren = this.values.length;
+ }
+ this.values.push(token.value);
+ }
+ else {
+ this.values.push(null);
+ }
+ };
+ return Reader;
+ }());
+ var Tokenizer = (function () {
+ function Tokenizer(code, config) {
+ this.errorHandler = new error_handler_1.ErrorHandler();
+ this.errorHandler.tolerant = config ? (typeof config.tolerant === 'boolean' && config.tolerant) : false;
+ this.scanner = new scanner_1.Scanner(code, this.errorHandler);
+ this.scanner.trackComment = config ? (typeof config.comment === 'boolean' && config.comment) : false;
+ this.trackRange = config ? (typeof config.range === 'boolean' && config.range) : false;
+ this.trackLoc = config ? (typeof config.loc === 'boolean' && config.loc) : false;
+ this.buffer = [];
+ this.reader = new Reader();
+ }
+ Tokenizer.prototype.errors = function () {
+ return this.errorHandler.errors;
+ };
+ Tokenizer.prototype.getNextToken = function () {
+ if (this.buffer.length === 0) {
+ var comments = this.scanner.scanComments();
+ if (this.scanner.trackComment) {
+ for (var i = 0; i < comments.length; ++i) {
+ var e = comments[i];
+ var value = this.scanner.source.slice(e.slice[0], e.slice[1]);
+ var comment = {
+ type: e.multiLine ? 'BlockComment' : 'LineComment',
+ value: value
+ };
+ if (this.trackRange) {
+ comment.range = e.range;
+ }
+ if (this.trackLoc) {
+ comment.loc = e.loc;
+ }
+ this.buffer.push(comment);
+ }
+ }
+ if (!this.scanner.eof()) {
+ var loc = void 0;
+ if (this.trackLoc) {
+ loc = {
+ start: {
+ line: this.scanner.lineNumber,
+ column: this.scanner.index - this.scanner.lineStart
+ },
+ end: {}
+ };
+ }
+ var startRegex = (this.scanner.source[this.scanner.index] === '/') && this.reader.isRegexStart();
+ var token = startRegex ? this.scanner.scanRegExp() : this.scanner.lex();
+ this.reader.push(token);
+ var entry = {
+ type: token_1.TokenName[token.type],
+ value: this.scanner.source.slice(token.start, token.end)
+ };
+ if (this.trackRange) {
+ entry.range = [token.start, token.end];
+ }
+ if (this.trackLoc) {
+ loc.end = {
+ line: this.scanner.lineNumber,
+ column: this.scanner.index - this.scanner.lineStart
+ };
+ entry.loc = loc;
+ }
+ if (token.type === 9 /* RegularExpression */) {
+ var pattern = token.pattern;
+ var flags = token.flags;
+ entry.regex = { pattern: pattern, flags: flags };
+ }
+ this.buffer.push(entry);
+ }
+ }
+ return this.buffer.shift();
+ };
+ return Tokenizer;
+ }());
+ exports.Tokenizer = Tokenizer;
+
+
+/***/ }
+/******/ ])
+});
+;
\ No newline at end of file
projects / dotfiles / .git / blobdiff