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							- (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: 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- 	    // Unicode v8.0.0 NonAsciiIdentifierPart:
 
- 	    NonAsciiIdentifierPart: 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-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-\uDD74\uDDFD\uDE80-\uDE9C\uDEA0-\uDED0\uDEE0\uDF00-\uDF1F\uDF30-\uDF4A\uDF50-\uDF7A\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|\uD801[\uDC00-\uDC9D\uDCA0-\uDCA9\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-\uDE03\uDE05\uDE06\uDE0C-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE38-\uDE3A\uDE3F\uDE60-\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE6\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48\uDC80-\uDCB2\uDCC0-\uDCF2]|\uD804[\uDC00-\uDC46\uDC66-\uDC6F\uDC7F-\uDCBA\uDCD0-\uDCE8\uDCF0-\uDCF9\uDD00-\uDD34\uDD36-\uDD3F\uDD50-\uDD73\uDD76\uDD80-\uDDC4\uDDCA-\uDDCC\uDDD0-\uDDDA\uDDDC\uDE00-\uDE11\uDE13-\uDE37\uDE80-\uDE86\uDE88\uDE8A-\uDE8D\uDE8F-\uDE9D\uDE9F-\uDEA8\uDEB0-\uDEEA\uDEF0-\uDEF9\uDF00-\uDF03\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3C-\uDF44\uDF47\uDF48\uDF4B-\uDF4D\uDF50\uDF57\uDF5D-\uDF63\uDF66-\uDF6C\uDF70-\uDF74]|\uD805[\uDC80-\uDCC5\uDCC7\uDCD0-\uDCD9\uDD80-\uDDB5\uDDB8-\uDDC0\uDDD8-\uDDDD\uDE00-\uDE40\uDE44\uDE50-\uDE59\uDE80-\uDEB7\uDEC0-\uDEC9\uDF00-\uDF19\uDF1D-\uDF2B\uDF30-\uDF39]|\uD806[\uDCA0-\uDCE9\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\uDE60-\uDE69\uDED0-\uDEED\uDEF0-\uDEF4\uDF00-\uDF36\uDF40-\uDF43\uDF50-\uDF59\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50-\uDF7E\uDF8F-\uDF9F]|\uD82C[\uDC00\uDC01]|\uD82F[\uDC00-\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99\uDC9D\uDC9E]|\uD834[\uDD65-\uDD69\uDD6D-\uDD72\uDD7B-\uDD82\uDD85-\uDD8B\uDDAA-\uDDAD\uDE42-\uDE44]|\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\uDFCE-\uDFFF]|\uD836[\uDE00-\uDE36\uDE3B-\uDE6C\uDE75\uDE84\uDE9B-\uDE9F\uDEA1-\uDEAF]|\uD83A[\uDC00-\uDCC4\uDCD0-\uDCD6]|\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]|\uDB40[\uDD00-\uDDEF]/
 
- 	};
 
- 	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;
 
- /***/ }
 
- /******/ ])
 
- });
 
- ;
 
 
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