/*********************************************************************
This file contains third party open source javascript routines
that are useful to edbrowse.
Licenses and links are included here.
These are snapshots; you will need to update this file, i.e. grab a new
snapshot, as the software evolves.

Being huge, these functions are compiled once in the master window,
then referenced from every other window.
Large blocks of code are inside an if(mw$.compiled == false) block,
so it only recompiles the first time; then the links are at the bottom.
Sometimes I have to change the functions just a bit to support this,
e.g. replacing document with my$doc().
I'll make notes if this is the case.

Third-party libraries: Esprima, which converts javascript code into
an Abstract Syntax Tree (AST), and Escodegen, which converts an AST into
javascript code.  We are using them together, as one apparatus.  What's
the point?  The point is that when Escodegen converts an AST into code,
it deminifies (aka deminimizes), adding returns.
This makes the difference between a reported JS runtime with an unhelpful
line number (missing method name in blah.js on line 1, where line 1 goes on for pages)
and a JS runtime with a real line number (missing method name in blah.js on
line 2345, which you can follow through on and debug something.)

Link for Esprima: https://github.com/jquery/esprima.git
License for Esprima: found below, at the top of the esprima.js source
*********************************************************************/


if(!mw$.compiled) {


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		module.exports = factory();
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		define([], factory);
/* istanbul ignore next */
	else if(typeof exports === 'object')
		exports["esprima"] = factory();
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		root["esprima"] = factory();
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/* 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. '&#123;'
	                        numeric = (ch === '#');
	                        break;
	                    case 3:
	                        if (numeric) {
	                            // e.g. '&#x41;'
	                            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. '&#x41;' 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;


/***/ }
/******/ ])
});
;





/*********************************************************************
Next third-party libraries: Escodegen

Link for Escodegen: https://github.com/estools/escodegen.git
This code comes from escodegen.browser.js, which includes its dependencies
in a bundle.
To generate escodegen.browser.js:
(1) git clone https://github.com/estools/escodegen.git
(2) cd to escodegen, the folder containing the json file
(3) get npm and nodejs-legacy with a package manager if necessary
(4) npm install
(5) npm run-script build

License for Escodegen: LICENSE.BSD is found at the provided
escodegen.git location as of 20190810.  Previously there was also 
a LICENSE.source-map, but this is apparently no longer present.

LICENSE.BSD:
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.
*********************************************************************/




// Generated by CommonJS Everywhere 0.9.7
(function (global) {
  function require(file, parentModule) {
    if ({}.hasOwnProperty.call(require.cache, file))
      return require.cache[file];
    var resolved = require.resolve(file);
    if (!resolved)
      throw new Error('Failed to resolve module ' + file);
    var module$ = {
        id: file,
        require: require,
        filename: file,
        exports: {},
        loaded: false,
        parent: parentModule,
        children: []
      };
    if (parentModule)
      parentModule.children.push(module$);
    var dirname = file.slice(0, file.lastIndexOf('/') + 1);
    require.cache[file] = module$.exports;
    resolved.call(module$.exports, module$, module$.exports, dirname, file);
    module$.loaded = true;
    return require.cache[file] = module$.exports;
  }
  require.modules = {};
  require.cache = {};
  require.resolve = function (file) {
    return {}.hasOwnProperty.call(require.modules, file) ? require.modules[file] : void 0;
  };
  require.define = function (file, fn) {
    require.modules[file] = fn;
  };
  var process = function () {
      var cwd = '/';
      return {
        title: 'browser',
        version: 'v10.15.3',
        browser: true,
        env: {},
        argv: [],
        nextTick: global.setImmediate || function (fn) {
          setTimeout(fn, 0);
        },
        cwd: function () {
          return cwd;
        },
        chdir: function (dir) {
          cwd = dir;
        }
      };
    }();
  require.define('/tools/entry-point.js', function (module, exports, __dirname, __filename) {
    (function () {
      'use strict';
      global.escodegen = require('/escodegen.js', module);
      escodegen.browser = true;
    }());
  });
  require.define('/escodegen.js', function (module, exports, __dirname, __filename) {
    (function () {
      'use strict';
      var Syntax, Precedence, BinaryPrecedence, SourceNode, estraverse, esutils, base, indent, json, renumber, hexadecimal, quotes, escapeless, newline, space, parentheses, semicolons, safeConcatenation, directive, extra, parse, sourceMap, sourceCode, preserveBlankLines, FORMAT_MINIFY, FORMAT_DEFAULTS;
      estraverse = require('/node_modules/estraverse/estraverse.js', module);
      esutils = require('/node_modules/esutils/lib/utils.js', module);
      Syntax = estraverse.Syntax;
      function isExpression(node) {
        return CodeGenerator.Expression.hasOwnProperty(node.type);
      }
      function isStatement(node) {
        return CodeGenerator.Statement.hasOwnProperty(node.type);
      }
      Precedence = {
        Sequence: 0,
        Yield: 1,
        Assignment: 1,
        Conditional: 2,
        ArrowFunction: 2,
        LogicalOR: 3,
        LogicalAND: 4,
        BitwiseOR: 5,
        BitwiseXOR: 6,
        BitwiseAND: 7,
        Equality: 8,
        Relational: 9,
        BitwiseSHIFT: 10,
        Additive: 11,
        Multiplicative: 12,
        Await: 13,
        Unary: 13,
        Postfix: 14,
        Call: 15,
        New: 16,
        TaggedTemplate: 17,
        Member: 18,
        Primary: 19
      };
      BinaryPrecedence = {
        '||': Precedence.LogicalOR,
        '&&': Precedence.LogicalAND,
        '|': Precedence.BitwiseOR,
        '^': Precedence.BitwiseXOR,
        '&': Precedence.BitwiseAND,
        '==': Precedence.Equality,
        '!=': Precedence.Equality,
        '===': Precedence.Equality,
        '!==': Precedence.Equality,
        'is': Precedence.Equality,
        'isnt': Precedence.Equality,
        '<': Precedence.Relational,
        '>': Precedence.Relational,
        '<=': Precedence.Relational,
        '>=': Precedence.Relational,
        'in': Precedence.Relational,
        'instanceof': Precedence.Relational,
        '<<': Precedence.BitwiseSHIFT,
        '>>': Precedence.BitwiseSHIFT,
        '>>>': Precedence.BitwiseSHIFT,
        '+': Precedence.Additive,
        '-': Precedence.Additive,
        '*': Precedence.Multiplicative,
        '%': Precedence.Multiplicative,
        '/': Precedence.Multiplicative
      };
      var F_ALLOW_IN = 1, F_ALLOW_CALL = 1 << 1, F_ALLOW_UNPARATH_NEW = 1 << 2, F_FUNC_BODY = 1 << 3, F_DIRECTIVE_CTX = 1 << 4, F_SEMICOLON_OPT = 1 << 5;
      var E_FTT = F_ALLOW_CALL | F_ALLOW_UNPARATH_NEW, E_TTF = F_ALLOW_IN | F_ALLOW_CALL, E_TTT = F_ALLOW_IN | F_ALLOW_CALL | F_ALLOW_UNPARATH_NEW, E_TFF = F_ALLOW_IN, E_FFT = F_ALLOW_UNPARATH_NEW, E_TFT = F_ALLOW_IN | F_ALLOW_UNPARATH_NEW;
      var S_TFFF = F_ALLOW_IN, S_TFFT = F_ALLOW_IN | F_SEMICOLON_OPT, S_FFFF = 0, S_TFTF = F_ALLOW_IN | F_DIRECTIVE_CTX, S_TTFF = F_ALLOW_IN | F_FUNC_BODY;
      function getDefaultOptions() {
        return {
          indent: null,
          base: null,
          parse: null,
          comment: false,
          format: {
            indent: {
              style: '    ',
              base: 0,
              adjustMultilineComment: false
            },
            newline: '\n',
            space: ' ',
            json: false,
            renumber: false,
            hexadecimal: false,
            quotes: 'single',
            escapeless: false,
            compact: false,
            parentheses: true,
            semicolons: true,
            safeConcatenation: false,
            preserveBlankLines: false
          },
          moz: {
            comprehensionExpressionStartsWithAssignment: false,
            starlessGenerator: false
          },
          sourceMap: null,
          sourceMapRoot: null,
          sourceMapWithCode: false,
          directive: false,
          raw: true,
          verbatim: null,
          sourceCode: null
        };
      }
      function stringRepeat(str, num) {
        var result = '';
        for (num |= 0; num > 0; num >>>= 1, str += str) {
          if (num & 1) {
            result += str;
          }
        }
        return result;
      }
      function hasLineTerminator(str) {
        return /[\r\n]/g.test(str);
      }
      function endsWithLineTerminator(str) {
        var len = str.length;
        return len && esutils.code.isLineTerminator(str.charCodeAt(len - 1));
      }
      function merge(target, override) {
        var key;
        for (key in override) {
          if (override.hasOwnProperty(key)) {
            target[key] = override[key];
          }
        }
        return target;
      }
      function updateDeeply(target, override) {
        var key, val;
        function isHashObject(target) {
          return typeof target === 'object' && target instanceof Object && !(target instanceof RegExp);
        }
        for (key in override) {
          if (override.hasOwnProperty(key)) {
            val = override[key];
            if (isHashObject(val)) {
              if (isHashObject(target[key])) {
                updateDeeply(target[key], val);
              } else {
                target[key] = updateDeeply({}, val);
              }
            } else {
              target[key] = val;
            }
          }
        }
        return target;
      }
      function generateNumber(value) {
        var result, point, temp, exponent, pos;
        if (value !== value) {
          throw new Error('Numeric literal whose value is NaN');
        }
        if (value < 0 || value === 0 && 1 / value < 0) {
          throw new Error('Numeric literal whose value is negative');
        }
        if (value === 1 / 0) {
          return json ? 'null' : renumber ? '1e400' : '1e+400';
        }
        result = '' + value;
        if (!renumber || result.length < 3) {
          return result;
        }
        point = result.indexOf('.');
        if (!json && result.charCodeAt(0) === 48 && point === 1) {
          point = 0;
          result = result.slice(1);
        }
        temp = result;
        result = result.replace('e+', 'e');
        exponent = 0;
        if ((pos = temp.indexOf('e')) > 0) {
          exponent = +temp.slice(pos + 1);
          temp = temp.slice(0, pos);
        }
        if (point >= 0) {
          exponent -= temp.length - point - 1;
          temp = +(temp.slice(0, point) + temp.slice(point + 1)) + '';
        }
        pos = 0;
        while (temp.charCodeAt(temp.length + pos - 1) === 48) {
          --pos;
        }
        if (pos !== 0) {
          exponent -= pos;
          temp = temp.slice(0, pos);
        }
        if (exponent !== 0) {
          temp += 'e' + exponent;
        }
        if ((temp.length < result.length || hexadecimal && value > 1e12 && Math.floor(value) === value && (temp = '0x' + value.toString(16)).length < result.length) && +temp === value) {
          result = temp;
        }
        return result;
      }
      function escapeRegExpCharacter(ch, previousIsBackslash) {
        if ((ch & ~1) === 8232) {
          return (previousIsBackslash ? 'u' : '\\u') + (ch === 8232 ? '2028' : '2029');
        } else if (ch === 10 || ch === 13) {
          return (previousIsBackslash ? '' : '\\') + (ch === 10 ? 'n' : 'r');
        }
        return String.fromCharCode(ch);
      }
      function generateRegExp(reg) {
        var match, result, flags, i, iz, ch, characterInBrack, previousIsBackslash;
        result = reg.toString();
        if (reg.source) {
          match = result.match(/\/([^\/]*)$/);
          if (!match) {
            return result;
          }
          flags = match[1];
          result = '';
          characterInBrack = false;
          previousIsBackslash = false;
          for (i = 0, iz = reg.source.length; i < iz; ++i) {
            ch = reg.source.charCodeAt(i);
            if (!previousIsBackslash) {
              if (characterInBrack) {
                if (ch === 93) {
                  characterInBrack = false;
                }
              } else {
                if (ch === 47) {
                  result += '\\';
                } else if (ch === 91) {
                  characterInBrack = true;
                }
              }
              result += escapeRegExpCharacter(ch, previousIsBackslash);
              previousIsBackslash = ch === 92;
            } else {
              result += escapeRegExpCharacter(ch, previousIsBackslash);
              previousIsBackslash = false;
            }
          }
          return '/' + result + '/' + flags;
        }
        return result;
      }
      function escapeAllowedCharacter(code, next) {
        var hex;
        if (code === 8) {
          return '\\b';
        }
        if (code === 12) {
          return '\\f';
        }
        if (code === 9) {
          return '\\t';
        }
        hex = code.toString(16).toUpperCase();
        if (json || code > 255) {
          return '\\u' + '0000'.slice(hex.length) + hex;
        } else if (code === 0 && !esutils.code.isDecimalDigit(next)) {
          return '\\0';
        } else if (code === 11) {
          return '\\x0B';
        } else {
          return '\\x' + '00'.slice(hex.length) + hex;
        }
      }
      function escapeDisallowedCharacter(code) {
        if (code === 92) {
          return '\\\\';
        }
        if (code === 10) {
          return '\\n';
        }
        if (code === 13) {
          return '\\r';
        }
        if (code === 8232) {
          return '\\u2028';
        }
        if (code === 8233) {
          return '\\u2029';
        }
        throw new Error('Incorrectly classified character');
      }
      function escapeDirective(str) {
        var i, iz, code, quote;
        quote = quotes === 'double' ? '"' : "'";
        for (i = 0, iz = str.length; i < iz; ++i) {
          code = str.charCodeAt(i);
          if (code === 39) {
            quote = '"';
            break;
          } else if (code === 34) {
            quote = "'";
            break;
          } else if (code === 92) {
            ++i;
          }
        }
        return quote + str + quote;
      }
      function escapeString(str) {
        var result = '', i, len, code, singleQuotes = 0, doubleQuotes = 0, single, quote;
        for (i = 0, len = str.length; i < len; ++i) {
          code = str.charCodeAt(i);
          if (code === 39) {
            ++singleQuotes;
          } else if (code === 34) {
            ++doubleQuotes;
          } else if (code === 47 && json) {
            result += '\\';
          } else if (esutils.code.isLineTerminator(code) || code === 92) {
            result += escapeDisallowedCharacter(code);
            continue;
          } else if (!esutils.code.isIdentifierPartES5(code) && (json && code < 32 || !json && !escapeless && (code < 32 || code > 126))) {
            result += escapeAllowedCharacter(code, str.charCodeAt(i + 1));
            continue;
          }
          result += String.fromCharCode(code);
        }
        single = !(quotes === 'double' || quotes === 'auto' && doubleQuotes < singleQuotes);
        quote = single ? "'" : '"';
        if (!(single ? singleQuotes : doubleQuotes)) {
          return quote + result + quote;
        }
        str = result;
        result = quote;
        for (i = 0, len = str.length; i < len; ++i) {
          code = str.charCodeAt(i);
          if (code === 39 && single || code === 34 && !single) {
            result += '\\';
          }
          result += String.fromCharCode(code);
        }
        return result + quote;
      }
      function flattenToString(arr) {
        var i, iz, elem, result = '';
        for (i = 0, iz = arr.length; i < iz; ++i) {
          elem = arr[i];
          result += Array.isArray(elem) ? flattenToString(elem) : elem;
        }
        return result;
      }
      function toSourceNodeWhenNeeded(generated, node) {
        if (!sourceMap) {
          if (Array.isArray(generated)) {
            return flattenToString(generated);
          } else {
            return generated;
          }
        }
        if (node == null) {
          if (generated instanceof SourceNode) {
            return generated;
          } else {
            node = {};
          }
        }
        if (node.loc == null) {
          return new SourceNode(null, null, sourceMap, generated, node.name || null);
        }
        return new SourceNode(node.loc.start.line, node.loc.start.column, sourceMap === true ? node.loc.source || null : sourceMap, generated, node.name || null);
      }
      function noEmptySpace() {
        return space ? space : ' ';
      }
      function join(left, right) {
        var leftSource, rightSource, leftCharCode, rightCharCode;
        leftSource = toSourceNodeWhenNeeded(left).toString();
        if (leftSource.length === 0) {
          return [right];
        }
        rightSource = toSourceNodeWhenNeeded(right).toString();
        if (rightSource.length === 0) {
          return [left];
        }
        leftCharCode = leftSource.charCodeAt(leftSource.length - 1);
        rightCharCode = rightSource.charCodeAt(0);
        if ((leftCharCode === 43 || leftCharCode === 45) && leftCharCode === rightCharCode || esutils.code.isIdentifierPartES5(leftCharCode) && esutils.code.isIdentifierPartES5(rightCharCode) || leftCharCode === 47 && rightCharCode === 105) {
          return [
            left,
            noEmptySpace(),
            right
          ];
        } else if (esutils.code.isWhiteSpace(leftCharCode) || esutils.code.isLineTerminator(leftCharCode) || esutils.code.isWhiteSpace(rightCharCode) || esutils.code.isLineTerminator(rightCharCode)) {
          return [
            left,
            right
          ];
        }
        return [
          left,
          space,
          right
        ];
      }
      function addIndent(stmt) {
        return [
          base,
          stmt
        ];
      }
      function withIndent(fn) {
        var previousBase;
        previousBase = base;
        base += indent;
        fn(base);
        base = previousBase;
      }
      function calculateSpaces(str) {
        var i;
        for (i = str.length - 1; i >= 0; --i) {
          if (esutils.code.isLineTerminator(str.charCodeAt(i))) {
            break;
          }
        }
        return str.length - 1 - i;
      }
      function adjustMultilineComment(value, specialBase) {
        var array, i, len, line, j, spaces, previousBase, sn;
        array = value.split(/\r\n|[\r\n]/);
        spaces = Number.MAX_VALUE;
        for (i = 1, len = array.length; i < len; ++i) {
          line = array[i];
          j = 0;
          while (j < line.length && esutils.code.isWhiteSpace(line.charCodeAt(j))) {
            ++j;
          }
          if (spaces > j) {
            spaces = j;
          }
        }
        if (typeof specialBase !== 'undefined') {
          previousBase = base;
          if (array[1][spaces] === '*') {
            specialBase += ' ';
          }
          base = specialBase;
        } else {
          if (spaces & 1) {
            --spaces;
          }
          previousBase = base;
        }
        for (i = 1, len = array.length; i < len; ++i) {
          sn = toSourceNodeWhenNeeded(addIndent(array[i].slice(spaces)));
          array[i] = sourceMap ? sn.join('') : sn;
        }
        base = previousBase;
        return array.join('\n');
      }
      function generateComment(comment, specialBase) {
        if (comment.type === 'Line') {
          if (endsWithLineTerminator(comment.value)) {
            return '//' + comment.value;
          } else {
            var result = '//' + comment.value;
            if (!preserveBlankLines) {
              result += '\n';
            }
            return result;
          }
        }
        if (extra.format.indent.adjustMultilineComment && /[\n\r]/.test(comment.value)) {
          return adjustMultilineComment('/*' + comment.value + '*/', specialBase);
        }
        return '/*' + comment.value + '*/';
      }
      function addComments(stmt, result) {
        var i, len, comment, save, tailingToStatement, specialBase, fragment, extRange, range, prevRange, prefix, infix, suffix, count;
        if (stmt.leadingComments && stmt.leadingComments.length > 0) {
          save = result;
          if (preserveBlankLines) {
            comment = stmt.leadingComments[0];
            result = [];
            extRange = comment.extendedRange;
            range = comment.range;
            prefix = sourceCode.substring(extRange[0], range[0]);
            count = (prefix.match(/\n/g) || []).length;
            if (count > 0) {
              result.push(stringRepeat('\n', count));
              result.push(addIndent(generateComment(comment)));
            } else {
              result.push(prefix);
              result.push(generateComment(comment));
            }
            prevRange = range;
            for (i = 1, len = stmt.leadingComments.length; i < len; i++) {
              comment = stmt.leadingComments[i];
              range = comment.range;
              infix = sourceCode.substring(prevRange[1], range[0]);
              count = (infix.match(/\n/g) || []).length;
              result.push(stringRepeat('\n', count));
              result.push(addIndent(generateComment(comment)));
              prevRange = range;
            }
            suffix = sourceCode.substring(range[1], extRange[1]);
            count = (suffix.match(/\n/g) || []).length;
            result.push(stringRepeat('\n', count));
          } else {
            comment = stmt.leadingComments[0];
            result = [];
            if (safeConcatenation && stmt.type === Syntax.Program && stmt.body.length === 0) {
              result.push('\n');
            }
            result.push(generateComment(comment));
            if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
              result.push('\n');
            }
            for (i = 1, len = stmt.leadingComments.length; i < len; ++i) {
              comment = stmt.leadingComments[i];
              fragment = [generateComment(comment)];
              if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
                fragment.push('\n');
              }
              result.push(addIndent(fragment));
            }
          }
          result.push(addIndent(save));
        }
        if (stmt.trailingComments) {
          if (preserveBlankLines) {
            comment = stmt.trailingComments[0];
            extRange = comment.extendedRange;
            range = comment.range;
            prefix = sourceCode.substring(extRange[0], range[0]);
            count = (prefix.match(/\n/g) || []).length;
            if (count > 0) {
              result.push(stringRepeat('\n', count));
              result.push(addIndent(generateComment(comment)));
            } else {
              result.push(prefix);
              result.push(generateComment(comment));
            }
          } else {
            tailingToStatement = !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString());
            specialBase = stringRepeat(' ', calculateSpaces(toSourceNodeWhenNeeded([
              base,
              result,
              indent
            ]).toString()));
            for (i = 0, len = stmt.trailingComments.length; i < len; ++i) {
              comment = stmt.trailingComments[i];
              if (tailingToStatement) {
                if (i === 0) {
                  result = [
                    result,
                    indent
                  ];
                } else {
                  result = [
                    result,
                    specialBase
                  ];
                }
                result.push(generateComment(comment, specialBase));
              } else {
                result = [
                  result,
                  addIndent(generateComment(comment))
                ];
              }
              if (i !== len - 1 && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
                result = [
                  result,
                  '\n'
                ];
              }
            }
          }
        }
        return result;
      }
      function generateBlankLines(start, end, result) {
        var j, newlineCount = 0;
        for (j = start; j < end; j++) {
          if (sourceCode[j] === '\n') {
            newlineCount++;
          }
        }
        for (j = 1; j < newlineCount; j++) {
          result.push(newline);
        }
      }
      function parenthesize(text, current, should) {
        if (current < should) {
          return [
            '(',
            text,
            ')'
          ];
        }
        return text;
      }
      function generateVerbatimString(string) {
        var i, iz, result;
        result = string.split(/\r\n|\n/);
        for (i = 1, iz = result.length; i < iz; i++) {
          result[i] = newline + base + result[i];
        }
        return result;
      }
      function generateVerbatim(expr, precedence) {
        var verbatim, result, prec;
        verbatim = expr[extra.verbatim];
        if (typeof verbatim === 'string') {
          result = parenthesize(generateVerbatimString(verbatim), Precedence.Sequence, precedence);
        } else {
          result = generateVerbatimString(verbatim.content);
          prec = verbatim.precedence != null ? verbatim.precedence : Precedence.Sequence;
          result = parenthesize(result, prec, precedence);
        }
        return toSourceNodeWhenNeeded(result, expr);
      }
      function CodeGenerator() {
      }
      CodeGenerator.prototype.maybeBlock = function (stmt, flags) {
        var result, noLeadingComment, that = this;
        noLeadingComment = !extra.comment || !stmt.leadingComments;
        if (stmt.type === Syntax.BlockStatement && noLeadingComment) {
          return [
            space,
            this.generateStatement(stmt, flags)
          ];
        }
        if (stmt.type === Syntax.EmptyStatement && noLeadingComment) {
          return ';';
        }
        withIndent(function () {
          result = [
            newline,
            addIndent(that.generateStatement(stmt, flags))
          ];
        });
        return result;
      };
      CodeGenerator.prototype.maybeBlockSuffix = function (stmt, result) {
        var ends = endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString());
        if (stmt.type === Syntax.BlockStatement && (!extra.comment || !stmt.leadingComments) && !ends) {
          return [
            result,
            space
          ];
        }
        if (ends) {
          return [
            result,
            base
          ];
        }
        return [
          result,
          newline,
          base
        ];
      };
      function generateIdentifier(node) {
        return toSourceNodeWhenNeeded(node.name, node);
      }
      function generateAsyncPrefix(node, spaceRequired) {
        return node.async ? 'async' + (spaceRequired ? noEmptySpace() : space) : '';
      }
      function generateStarSuffix(node) {
        var isGenerator = node.generator && !extra.moz.starlessGenerator;
        return isGenerator ? '*' + space : '';
      }
      function generateMethodPrefix(prop) {
        var func = prop.value, prefix = '';
        if (func.async) {
          prefix += generateAsyncPrefix(func, !prop.computed);
        }
        if (func.generator) {
          prefix += generateStarSuffix(func) ? '*' : '';
        }
        return prefix;
      }
      CodeGenerator.prototype.generatePattern = function (node, precedence, flags) {
        if (node.type === Syntax.Identifier) {
          return generateIdentifier(node);
        }
        return this.generateExpression(node, precedence, flags);
      };
      CodeGenerator.prototype.generateFunctionParams = function (node) {
        var i, iz, result, hasDefault;
        hasDefault = false;
        if (node.type === Syntax.ArrowFunctionExpression && !node.rest && (!node.defaults || node.defaults.length === 0) && node.params.length === 1 && node.params[0].type === Syntax.Identifier) {
          result = [
            generateAsyncPrefix(node, true),
            generateIdentifier(node.params[0])
          ];
        } else {
          result = node.type === Syntax.ArrowFunctionExpression ? [generateAsyncPrefix(node, false)] : [];
          result.push('(');
          if (node.defaults) {
            hasDefault = true;
          }
          for (i = 0, iz = node.params.length; i < iz; ++i) {
            if (hasDefault && node.defaults[i]) {
              result.push(this.generateAssignment(node.params[i], node.defaults[i], '=', Precedence.Assignment, E_TTT));
            } else {
              result.push(this.generatePattern(node.params[i], Precedence.Assignment, E_TTT));
            }
            if (i + 1 < iz) {
              result.push(',' + space);
            }
          }
          if (node.rest) {
            if (node.params.length) {
              result.push(',' + space);
            }
            result.push('...');
            result.push(generateIdentifier(node.rest));
          }
          result.push(')');
        }
        return result;
      };
      CodeGenerator.prototype.generateFunctionBody = function (node) {
        var result, expr;
        result = this.generateFunctionParams(node);
        if (node.type === Syntax.ArrowFunctionExpression) {
          result.push(space);
          result.push('=>');
        }
        if (node.expression) {
          result.push(space);
          expr = this.generateExpression(node.body, Precedence.Assignment, E_TTT);
          if (expr.toString().charAt(0) === '{') {
            expr = [
              '(',
              expr,
              ')'
            ];
          }
          result.push(expr);
        } else {
          result.push(this.maybeBlock(node.body, S_TTFF));
        }
        return result;
      };
      CodeGenerator.prototype.generateIterationForStatement = function (operator, stmt, flags) {
        var result = ['for' + space + (stmt.await ? 'await' + space : '') + '('], that = this;
        withIndent(function () {
          if (stmt.left.type === Syntax.VariableDeclaration) {
            withIndent(function () {
              result.push(stmt.left.kind + noEmptySpace());
              result.push(that.generateStatement(stmt.left.declarations[0], S_FFFF));
            });
          } else {
            result.push(that.generateExpression(stmt.left, Precedence.Call, E_TTT));
          }
          result = join(result, operator);
          result = [
            join(result, that.generateExpression(stmt.right, Precedence.Assignment, E_TTT)),
            ')'
          ];
        });
        result.push(this.maybeBlock(stmt.body, flags));
        return result;
      };
      CodeGenerator.prototype.generatePropertyKey = function (expr, computed) {
        var result = [];
        if (computed) {
          result.push('[');
        }
        result.push(this.generateExpression(expr, Precedence.Sequence, E_TTT));
        if (computed) {
          result.push(']');
        }
        return result;
      };
      CodeGenerator.prototype.generateAssignment = function (left, right, operator, precedence, flags) {
        if (Precedence.Assignment < precedence) {
          flags |= F_ALLOW_IN;
        }
        return parenthesize([
          this.generateExpression(left, Precedence.Call, flags),
          space + operator + space,
          this.generateExpression(right, Precedence.Assignment, flags)
        ], Precedence.Assignment, precedence);
      };
      CodeGenerator.prototype.semicolon = function (flags) {
        if (!semicolons && flags & F_SEMICOLON_OPT) {
          return '';
        }
        return ';';
      };
      CodeGenerator.Statement = {
        BlockStatement: function (stmt, flags) {
          var range, content, result = [
              '{',
              newline
            ], that = this;
          withIndent(function () {
            if (stmt.body.length === 0 && preserveBlankLines) {
              range = stmt.range;
              if (range[1] - range[0] > 2) {
                content = sourceCode.substring(range[0] + 1, range[1] - 1);
                if (content[0] === '\n') {
                  result = ['{'];
                }
                result.push(content);
              }
            }
            var i, iz, fragment, bodyFlags;
            bodyFlags = S_TFFF;
            if (flags & F_FUNC_BODY) {
              bodyFlags |= F_DIRECTIVE_CTX;
            }
            for (i = 0, iz = stmt.body.length; i < iz; ++i) {
              if (preserveBlankLines) {
                if (i === 0) {
                  if (stmt.body[0].leadingComments) {
                    range = stmt.body[0].leadingComments[0].extendedRange;
                    content = sourceCode.substring(range[0], range[1]);
                    if (content[0] === '\n') {
                      result = ['{'];
                    }
                  }
                  if (!stmt.body[0].leadingComments) {
                    generateBlankLines(stmt.range[0], stmt.body[0].range[0], result);
                  }
                }
                if (i > 0) {
                  if (!stmt.body[i - 1].trailingComments && !stmt.body[i].leadingComments) {
                    generateBlankLines(stmt.body[i - 1].range[1], stmt.body[i].range[0], result);
                  }
                }
              }
              if (i === iz - 1) {
                bodyFlags |= F_SEMICOLON_OPT;
              }
              if (stmt.body[i].leadingComments && preserveBlankLines) {
                fragment = that.generateStatement(stmt.body[i], bodyFlags);
              } else {
                fragment = addIndent(that.generateStatement(stmt.body[i], bodyFlags));
              }
              result.push(fragment);
              if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
                if (preserveBlankLines && i < iz - 1) {
                  if (!stmt.body[i + 1].leadingComments) {
                    result.push(newline);
                  }
                } else {
                  result.push(newline);
                }
              }
              if (preserveBlankLines) {
                if (i === iz - 1) {
                  if (!stmt.body[i].trailingComments) {
                    generateBlankLines(stmt.body[i].range[1], stmt.range[1], result);
                  }
                }
              }
            }
          });
          result.push(addIndent('}'));
          return result;
        },
        BreakStatement: function (stmt, flags) {
          if (stmt.label) {
            return 'break ' + stmt.label.name + this.semicolon(flags);
          }
          return 'break' + this.semicolon(flags);
        },
        ContinueStatement: function (stmt, flags) {
          if (stmt.label) {
            return 'continue ' + stmt.label.name + this.semicolon(flags);
          }
          return 'continue' + this.semicolon(flags);
        },
        ClassBody: function (stmt, flags) {
          var result = [
              '{',
              newline
            ], that = this;
          withIndent(function (indent) {
            var i, iz;
            for (i = 0, iz = stmt.body.length; i < iz; ++i) {
              result.push(indent);
              result.push(that.generateExpression(stmt.body[i], Precedence.Sequence, E_TTT));
              if (i + 1 < iz) {
                result.push(newline);
              }
            }
          });
          if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
            result.push(newline);
          }
          result.push(base);
          result.push('}');
          return result;
        },
        ClassDeclaration: function (stmt, flags) {
          var result, fragment;
          result = ['class'];
          if (stmt.id) {
            result = join(result, this.generateExpression(stmt.id, Precedence.Sequence, E_TTT));
          }
          if (stmt.superClass) {
            fragment = join('extends', this.generateExpression(stmt.superClass, Precedence.Assignment, E_TTT));
            result = join(result, fragment);
          }
          result.push(space);
          result.push(this.generateStatement(stmt.body, S_TFFT));
          return result;
        },
        DirectiveStatement: function (stmt, flags) {
          if (extra.raw && stmt.raw) {
            return stmt.raw + this.semicolon(flags);
          }
          return escapeDirective(stmt.directive) + this.semicolon(flags);
        },
        DoWhileStatement: function (stmt, flags) {
          var result = join('do', this.maybeBlock(stmt.body, S_TFFF));
          result = this.maybeBlockSuffix(stmt.body, result);
          return join(result, [
            'while' + space + '(',
            this.generateExpression(stmt.test, Precedence.Sequence, E_TTT),
            ')' + this.semicolon(flags)
          ]);
        },
        CatchClause: function (stmt, flags) {
          var result, that = this;
          withIndent(function () {
            var guard;
            result = [
              'catch' + space + '(',
              that.generateExpression(stmt.param, Precedence.Sequence, E_TTT),
              ')'
            ];
            if (stmt.guard) {
              guard = that.generateExpression(stmt.guard, Precedence.Sequence, E_TTT);
              result.splice(2, 0, ' if ', guard);
            }
          });
          result.push(this.maybeBlock(stmt.body, S_TFFF));
          return result;
        },
        DebuggerStatement: function (stmt, flags) {
          return 'debugger' + this.semicolon(flags);
        },
        EmptyStatement: function (stmt, flags) {
          return ';';
        },
        ExportDefaultDeclaration: function (stmt, flags) {
          var result = ['export'], bodyFlags;
          bodyFlags = flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF;
          result = join(result, 'default');
          if (isStatement(stmt.declaration)) {
            result = join(result, this.generateStatement(stmt.declaration, bodyFlags));
          } else {
            result = join(result, this.generateExpression(stmt.declaration, Precedence.Assignment, E_TTT) + this.semicolon(flags));
          }
          return result;
        },
        ExportNamedDeclaration: function (stmt, flags) {
          var result = ['export'], bodyFlags, that = this;
          bodyFlags = flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF;
          if (stmt.declaration) {
            return join(result, this.generateStatement(stmt.declaration, bodyFlags));
          }
          if (stmt.specifiers) {
            if (stmt.specifiers.length === 0) {
              result = join(result, '{' + space + '}');
            } else if (stmt.specifiers[0].type === Syntax.ExportBatchSpecifier) {
              result = join(result, this.generateExpression(stmt.specifiers[0], Precedence.Sequence, E_TTT));
            } else {
              result = join(result, '{');
              withIndent(function (indent) {
                var i, iz;
                result.push(newline);
                for (i = 0, iz = stmt.specifiers.length; i < iz; ++i) {
                  result.push(indent);
                  result.push(that.generateExpression(stmt.specifiers[i], Precedence.Sequence, E_TTT));
                  if (i + 1 < iz) {
                    result.push(',' + newline);
                  }
                }
              });
              if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
                result.push(newline);
              }
              result.push(base + '}');
            }
            if (stmt.source) {
              result = join(result, [
                'from' + space,
                this.generateExpression(stmt.source, Precedence.Sequence, E_TTT),
                this.semicolon(flags)
              ]);
            } else {
              result.push(this.semicolon(flags));
            }
          }
          return result;
        },
        ExportAllDeclaration: function (stmt, flags) {
          return [
            'export' + space,
            '*' + space,
            'from' + space,
            this.generateExpression(stmt.source, Precedence.Sequence, E_TTT),
            this.semicolon(flags)
          ];
        },
        ExpressionStatement: function (stmt, flags) {
          var result, fragment;
          function isClassPrefixed(fragment) {
            var code;
            if (fragment.slice(0, 5) !== 'class') {
              return false;
            }
            code = fragment.charCodeAt(5);
            return code === 123 || esutils.code.isWhiteSpace(code) || esutils.code.isLineTerminator(code);
          }
          function isFunctionPrefixed(fragment) {
            var code;
            if (fragment.slice(0, 8) !== 'function') {
              return false;
            }
            code = fragment.charCodeAt(8);
            return code === 40 || esutils.code.isWhiteSpace(code) || code === 42 || esutils.code.isLineTerminator(code);
          }
          function isAsyncPrefixed(fragment) {
            var code, i, iz;
            if (fragment.slice(0, 5) !== 'async') {
              return false;
            }
            if (!esutils.code.isWhiteSpace(fragment.charCodeAt(5))) {
              return false;
            }
            for (i = 6, iz = fragment.length; i < iz; ++i) {
              if (!esutils.code.isWhiteSpace(fragment.charCodeAt(i))) {
                break;
              }
            }
            if (i === iz) {
              return false;
            }
            if (fragment.slice(i, i + 8) !== 'function') {
              return false;
            }
            code = fragment.charCodeAt(i + 8);
            return code === 40 || esutils.code.isWhiteSpace(code) || code === 42 || esutils.code.isLineTerminator(code);
          }
          result = [this.generateExpression(stmt.expression, Precedence.Sequence, E_TTT)];
          fragment = toSourceNodeWhenNeeded(result).toString();
          if (fragment.charCodeAt(0) === 123 || isClassPrefixed(fragment) || isFunctionPrefixed(fragment) || isAsyncPrefixed(fragment) || directive && flags & F_DIRECTIVE_CTX && stmt.expression.type === Syntax.Literal && typeof stmt.expression.value === 'string') {
            result = [
              '(',
              result,
              ')' + this.semicolon(flags)
            ];
          } else {
            result.push(this.semicolon(flags));
          }
          return result;
        },
        ImportDeclaration: function (stmt, flags) {
          var result, cursor, that = this;
          if (stmt.specifiers.length === 0) {
            return [
              'import',
              space,
              this.generateExpression(stmt.source, Precedence.Sequence, E_TTT),
              this.semicolon(flags)
            ];
          }
          result = ['import'];
          cursor = 0;
          if (stmt.specifiers[cursor].type === Syntax.ImportDefaultSpecifier) {
            result = join(result, [this.generateExpression(stmt.specifiers[cursor], Precedence.Sequence, E_TTT)]);
            ++cursor;
          }
          if (stmt.specifiers[cursor]) {
            if (cursor !== 0) {
              result.push(',');
            }
            if (stmt.specifiers[cursor].type === Syntax.ImportNamespaceSpecifier) {
              result = join(result, [
                space,
                this.generateExpression(stmt.specifiers[cursor], Precedence.Sequence, E_TTT)
              ]);
            } else {
              result.push(space + '{');
              if (stmt.specifiers.length - cursor === 1) {
                result.push(space);
                result.push(this.generateExpression(stmt.specifiers[cursor], Precedence.Sequence, E_TTT));
                result.push(space + '}' + space);
              } else {
                withIndent(function (indent) {
                  var i, iz;
                  result.push(newline);
                  for (i = cursor, iz = stmt.specifiers.length; i < iz; ++i) {
                    result.push(indent);
                    result.push(that.generateExpression(stmt.specifiers[i], Precedence.Sequence, E_TTT));
                    if (i + 1 < iz) {
                      result.push(',' + newline);
                    }
                  }
                });
                if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
                  result.push(newline);
                }
                result.push(base + '}' + space);
              }
            }
          }
          result = join(result, [
            'from' + space,
            this.generateExpression(stmt.source, Precedence.Sequence, E_TTT),
            this.semicolon(flags)
          ]);
          return result;
        },
        VariableDeclarator: function (stmt, flags) {
          var itemFlags = flags & F_ALLOW_IN ? E_TTT : E_FTT;
          if (stmt.init) {
            return [
              this.generateExpression(stmt.id, Precedence.Assignment, itemFlags),
              space,
              '=',
              space,
              this.generateExpression(stmt.init, Precedence.Assignment, itemFlags)
            ];
          }
          return this.generatePattern(stmt.id, Precedence.Assignment, itemFlags);
        },
        VariableDeclaration: function (stmt, flags) {
          var result, i, iz, node, bodyFlags, that = this;
          result = [stmt.kind];
          bodyFlags = flags & F_ALLOW_IN ? S_TFFF : S_FFFF;
          function block() {
            node = stmt.declarations[0];
            if (extra.comment && node.leadingComments) {
              result.push('\n');
              result.push(addIndent(that.generateStatement(node, bodyFlags)));
            } else {
              result.push(noEmptySpace());
              result.push(that.generateStatement(node, bodyFlags));
            }
            for (i = 1, iz = stmt.declarations.length; i < iz; ++i) {
              node = stmt.declarations[i];
              if (extra.comment && node.leadingComments) {
                result.push(',' + newline);
                result.push(addIndent(that.generateStatement(node, bodyFlags)));
              } else {
                result.push(',' + space);
                result.push(that.generateStatement(node, bodyFlags));
              }
            }
          }
          if (stmt.declarations.length > 1) {
            withIndent(block);
          } else {
            block();
          }
          result.push(this.semicolon(flags));
          return result;
        },
        ThrowStatement: function (stmt, flags) {
          return [
            join('throw', this.generateExpression(stmt.argument, Precedence.Sequence, E_TTT)),
            this.semicolon(flags)
          ];
        },
        TryStatement: function (stmt, flags) {
          var result, i, iz, guardedHandlers;
          result = [
            'try',
            this.maybeBlock(stmt.block, S_TFFF)
          ];
          result = this.maybeBlockSuffix(stmt.block, result);
          if (stmt.handlers) {
            for (i = 0, iz = stmt.handlers.length; i < iz; ++i) {
              result = join(result, this.generateStatement(stmt.handlers[i], S_TFFF));
              if (stmt.finalizer || i + 1 !== iz) {
                result = this.maybeBlockSuffix(stmt.handlers[i].body, result);
              }
            }
          } else {
            guardedHandlers = stmt.guardedHandlers || [];
            for (i = 0, iz = guardedHandlers.length; i < iz; ++i) {
              result = join(result, this.generateStatement(guardedHandlers[i], S_TFFF));
              if (stmt.finalizer || i + 1 !== iz) {
                result = this.maybeBlockSuffix(guardedHandlers[i].body, result);
              }
            }
            if (stmt.handler) {
              if (Array.isArray(stmt.handler)) {
                for (i = 0, iz = stmt.handler.length; i < iz; ++i) {
                  result = join(result, this.generateStatement(stmt.handler[i], S_TFFF));
                  if (stmt.finalizer || i + 1 !== iz) {
                    result = this.maybeBlockSuffix(stmt.handler[i].body, result);
                  }
                }
              } else {
                result = join(result, this.generateStatement(stmt.handler, S_TFFF));
                if (stmt.finalizer) {
                  result = this.maybeBlockSuffix(stmt.handler.body, result);
                }
              }
            }
          }
          if (stmt.finalizer) {
            result = join(result, [
              'finally',
              this.maybeBlock(stmt.finalizer, S_TFFF)
            ]);
          }
          return result;
        },
        SwitchStatement: function (stmt, flags) {
          var result, fragment, i, iz, bodyFlags, that = this;
          withIndent(function () {
            result = [
              'switch' + space + '(',
              that.generateExpression(stmt.discriminant, Precedence.Sequence, E_TTT),
              ')' + space + '{' + newline
            ];
          });
          if (stmt.cases) {
            bodyFlags = S_TFFF;
            for (i = 0, iz = stmt.cases.length; i < iz; ++i) {
              if (i === iz - 1) {
                bodyFlags |= F_SEMICOLON_OPT;
              }
              fragment = addIndent(this.generateStatement(stmt.cases[i], bodyFlags));
              result.push(fragment);
              if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
                result.push(newline);
              }
            }
          }
          result.push(addIndent('}'));
          return result;
        },
        SwitchCase: function (stmt, flags) {
          var result, fragment, i, iz, bodyFlags, that = this;
          withIndent(function () {
            if (stmt.test) {
              result = [
                join('case', that.generateExpression(stmt.test, Precedence.Sequence, E_TTT)),
                ':'
              ];
            } else {
              result = ['default:'];
            }
            i = 0;
            iz = stmt.consequent.length;
            if (iz && stmt.consequent[0].type === Syntax.BlockStatement) {
              fragment = that.maybeBlock(stmt.consequent[0], S_TFFF);
              result.push(fragment);
              i = 1;
            }
            if (i !== iz && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
              result.push(newline);
            }
            bodyFlags = S_TFFF;
            for (; i < iz; ++i) {
              if (i === iz - 1 && flags & F_SEMICOLON_OPT) {
                bodyFlags |= F_SEMICOLON_OPT;
              }
              fragment = addIndent(that.generateStatement(stmt.consequent[i], bodyFlags));
              result.push(fragment);
              if (i + 1 !== iz && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
                result.push(newline);
              }
            }
          });
          return result;
        },
        IfStatement: function (stmt, flags) {
          var result, bodyFlags, semicolonOptional, that = this;
          withIndent(function () {
            result = [
              'if' + space + '(',
              that.generateExpression(stmt.test, Precedence.Sequence, E_TTT),
              ')'
            ];
          });
          semicolonOptional = flags & F_SEMICOLON_OPT;
          bodyFlags = S_TFFF;
          if (semicolonOptional) {
            bodyFlags |= F_SEMICOLON_OPT;
          }
          if (stmt.alternate) {
            result.push(this.maybeBlock(stmt.consequent, S_TFFF));
            result = this.maybeBlockSuffix(stmt.consequent, result);
            if (stmt.alternate.type === Syntax.IfStatement) {
              result = join(result, [
                'else ',
                this.generateStatement(stmt.alternate, bodyFlags)
              ]);
            } else {
              result = join(result, join('else', this.maybeBlock(stmt.alternate, bodyFlags)));
            }
          } else {
            result.push(this.maybeBlock(stmt.consequent, bodyFlags));
          }
          return result;
        },
        ForStatement: function (stmt, flags) {
          var result, that = this;
          withIndent(function () {
            result = ['for' + space + '('];
            if (stmt.init) {
              if (stmt.init.type === Syntax.VariableDeclaration) {
                result.push(that.generateStatement(stmt.init, S_FFFF));
              } else {
                result.push(that.generateExpression(stmt.init, Precedence.Sequence, E_FTT));
                result.push(';');
              }
            } else {
              result.push(';');
            }
            if (stmt.test) {
              result.push(space);
              result.push(that.generateExpression(stmt.test, Precedence.Sequence, E_TTT));
              result.push(';');
            } else {
              result.push(';');
            }
            if (stmt.update) {
              result.push(space);
              result.push(that.generateExpression(stmt.update, Precedence.Sequence, E_TTT));
              result.push(')');
            } else {
              result.push(')');
            }
          });
          result.push(this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF));
          return result;
        },
        ForInStatement: function (stmt, flags) {
          return this.generateIterationForStatement('in', stmt, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF);
        },
        ForOfStatement: function (stmt, flags) {
          return this.generateIterationForStatement('of', stmt, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF);
        },
        LabeledStatement: function (stmt, flags) {
          return [
            stmt.label.name + ':',
            this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF)
          ];
        },
        Program: function (stmt, flags) {
          var result, fragment, i, iz, bodyFlags;
          iz = stmt.body.length;
          result = [safeConcatenation && iz > 0 ? '\n' : ''];
          bodyFlags = S_TFTF;
          for (i = 0; i < iz; ++i) {
            if (!safeConcatenation && i === iz - 1) {
              bodyFlags |= F_SEMICOLON_OPT;
            }
            if (preserveBlankLines) {
              if (i === 0) {
                if (!stmt.body[0].leadingComments) {
                  generateBlankLines(stmt.range[0], stmt.body[i].range[0], result);
                }
              }
              if (i > 0) {
                if (!stmt.body[i - 1].trailingComments && !stmt.body[i].leadingComments) {
                  generateBlankLines(stmt.body[i - 1].range[1], stmt.body[i].range[0], result);
                }
              }
            }
            fragment = addIndent(this.generateStatement(stmt.body[i], bodyFlags));
            result.push(fragment);
            if (i + 1 < iz && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
              if (preserveBlankLines) {
                if (!stmt.body[i + 1].leadingComments) {
                  result.push(newline);
                }
              } else {
                result.push(newline);
              }
            }
            if (preserveBlankLines) {
              if (i === iz - 1) {
                if (!stmt.body[i].trailingComments) {
                  generateBlankLines(stmt.body[i].range[1], stmt.range[1], result);
                }
              }
            }
          }
          return result;
        },
        FunctionDeclaration: function (stmt, flags) {
          return [
            generateAsyncPrefix(stmt, true),
            'function',
            generateStarSuffix(stmt) || noEmptySpace(),
            stmt.id ? generateIdentifier(stmt.id) : '',
            this.generateFunctionBody(stmt)
          ];
        },
        ReturnStatement: function (stmt, flags) {
          if (stmt.argument) {
            return [
              join('return', this.generateExpression(stmt.argument, Precedence.Sequence, E_TTT)),
              this.semicolon(flags)
            ];
          }
          return ['return' + this.semicolon(flags)];
        },
        WhileStatement: function (stmt, flags) {
          var result, that = this;
          withIndent(function () {
            result = [
              'while' + space + '(',
              that.generateExpression(stmt.test, Precedence.Sequence, E_TTT),
              ')'
            ];
          });
          result.push(this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF));
          return result;
        },
        WithStatement: function (stmt, flags) {
          var result, that = this;
          withIndent(function () {
            result = [
              'with' + space + '(',
              that.generateExpression(stmt.object, Precedence.Sequence, E_TTT),
              ')'
            ];
          });
          result.push(this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF));
          return result;
        }
      };
      merge(CodeGenerator.prototype, CodeGenerator.Statement);
      CodeGenerator.Expression = {
        SequenceExpression: function (expr, precedence, flags) {
          var result, i, iz;
          if (Precedence.Sequence < precedence) {
            flags |= F_ALLOW_IN;
          }
          result = [];
          for (i = 0, iz = expr.expressions.length; i < iz; ++i) {
            result.push(this.generateExpression(expr.expressions[i], Precedence.Assignment, flags));
            if (i + 1 < iz) {
              result.push(',' + space);
            }
          }
          return parenthesize(result, Precedence.Sequence, precedence);
        },
        AssignmentExpression: function (expr, precedence, flags) {
          return this.generateAssignment(expr.left, expr.right, expr.operator, precedence, flags);
        },
        ArrowFunctionExpression: function (expr, precedence, flags) {
          return parenthesize(this.generateFunctionBody(expr), Precedence.ArrowFunction, precedence);
        },
        ConditionalExpression: function (expr, precedence, flags) {
          if (Precedence.Conditional < precedence) {
            flags |= F_ALLOW_IN;
          }
          return parenthesize([
            this.generateExpression(expr.test, Precedence.LogicalOR, flags),
            space + '?' + space,
            this.generateExpression(expr.consequent, Precedence.Assignment, flags),
            space + ':' + space,
            this.generateExpression(expr.alternate, Precedence.Assignment, flags)
          ], Precedence.Conditional, precedence);
        },
        LogicalExpression: function (expr, precedence, flags) {
          return this.BinaryExpression(expr, precedence, flags);
        },
        BinaryExpression: function (expr, precedence, flags) {
          var result, currentPrecedence, fragment, leftSource;
          currentPrecedence = BinaryPrecedence[expr.operator];
          if (currentPrecedence < precedence) {
            flags |= F_ALLOW_IN;
          }
          fragment = this.generateExpression(expr.left, currentPrecedence, flags);
          leftSource = fragment.toString();
          if (leftSource.charCodeAt(leftSource.length - 1) === 47 && esutils.code.isIdentifierPartES5(expr.operator.charCodeAt(0))) {
            result = [
              fragment,
              noEmptySpace(),
              expr.operator
            ];
          } else {
            result = join(fragment, expr.operator);
          }
          fragment = this.generateExpression(expr.right, currentPrecedence + 1, flags);
          if (expr.operator === '/' && fragment.toString().charAt(0) === '/' || expr.operator.slice(-1) === '<' && fragment.toString().slice(0, 3) === '!--') {
            result.push(noEmptySpace());
            result.push(fragment);
          } else {
            result = join(result, fragment);
          }
          if (expr.operator === 'in' && !(flags & F_ALLOW_IN)) {
            return [
              '(',
              result,
              ')'
            ];
          }
          return parenthesize(result, currentPrecedence, precedence);
        },
        CallExpression: function (expr, precedence, flags) {
          var result, i, iz;
          result = [this.generateExpression(expr.callee, Precedence.Call, E_TTF)];
          result.push('(');
          for (i = 0, iz = expr['arguments'].length; i < iz; ++i) {
            result.push(this.generateExpression(expr['arguments'][i], Precedence.Assignment, E_TTT));
            if (i + 1 < iz) {
              result.push(',' + space);
            }
          }
          result.push(')');
          if (!(flags & F_ALLOW_CALL)) {
            return [
              '(',
              result,
              ')'
            ];
          }
          return parenthesize(result, Precedence.Call, precedence);
        },
        NewExpression: function (expr, precedence, flags) {
          var result, length, i, iz, itemFlags;
          length = expr['arguments'].length;
          itemFlags = flags & F_ALLOW_UNPARATH_NEW && !parentheses && length === 0 ? E_TFT : E_TFF;
          result = join('new', this.generateExpression(expr.callee, Precedence.New, itemFlags));
          if (!(flags & F_ALLOW_UNPARATH_NEW) || parentheses || length > 0) {
            result.push('(');
            for (i = 0, iz = length; i < iz; ++i) {
              result.push(this.generateExpression(expr['arguments'][i], Precedence.Assignment, E_TTT));
              if (i + 1 < iz) {
                result.push(',' + space);
              }
            }
            result.push(')');
          }
          return parenthesize(result, Precedence.New, precedence);
        },
        MemberExpression: function (expr, precedence, flags) {
          var result, fragment;
          result = [this.generateExpression(expr.object, Precedence.Call, flags & F_ALLOW_CALL ? E_TTF : E_TFF)];
          if (expr.computed) {
            result.push('[');
            result.push(this.generateExpression(expr.property, Precedence.Sequence, flags & F_ALLOW_CALL ? E_TTT : E_TFT));
            result.push(']');
          } else {
            if (expr.object.type === Syntax.Literal && typeof expr.object.value === 'number') {
              fragment = toSourceNodeWhenNeeded(result).toString();
              if (fragment.indexOf('.') < 0 && !/[eExX]/.test(fragment) && esutils.code.isDecimalDigit(fragment.charCodeAt(fragment.length - 1)) && !(fragment.length >= 2 && fragment.charCodeAt(0) === 48)) {
                result.push(' ');
              }
            }
            result.push('.');
            result.push(generateIdentifier(expr.property));
          }
          return parenthesize(result, Precedence.Member, precedence);
        },
        MetaProperty: function (expr, precedence, flags) {
          var result;
          result = [];
          result.push(typeof expr.meta === 'string' ? expr.meta : generateIdentifier(expr.meta));
          result.push('.');
          result.push(typeof expr.property === 'string' ? expr.property : generateIdentifier(expr.property));
          return parenthesize(result, Precedence.Member, precedence);
        },
        UnaryExpression: function (expr, precedence, flags) {
          var result, fragment, rightCharCode, leftSource, leftCharCode;
          fragment = this.generateExpression(expr.argument, Precedence.Unary, E_TTT);
          if (space === '') {
            result = join(expr.operator, fragment);
          } else {
            result = [expr.operator];
            if (expr.operator.length > 2) {
              result = join(result, fragment);
            } else {
              leftSource = toSourceNodeWhenNeeded(result).toString();
              leftCharCode = leftSource.charCodeAt(leftSource.length - 1);
              rightCharCode = fragment.toString().charCodeAt(0);
              if ((leftCharCode === 43 || leftCharCode === 45) && leftCharCode === rightCharCode || esutils.code.isIdentifierPartES5(leftCharCode) && esutils.code.isIdentifierPartES5(rightCharCode)) {
                result.push(noEmptySpace());
                result.push(fragment);
              } else {
                result.push(fragment);
              }
            }
          }
          return parenthesize(result, Precedence.Unary, precedence);
        },
        YieldExpression: function (expr, precedence, flags) {
          var result;
          if (expr.delegate) {
            result = 'yield*';
          } else {
            result = 'yield';
          }
          if (expr.argument) {
            result = join(result, this.generateExpression(expr.argument, Precedence.Yield, E_TTT));
          }
          return parenthesize(result, Precedence.Yield, precedence);
        },
        AwaitExpression: function (expr, precedence, flags) {
          var result = join(expr.all ? 'await*' : 'await', this.generateExpression(expr.argument, Precedence.Await, E_TTT));
          return parenthesize(result, Precedence.Await, precedence);
        },
        UpdateExpression: function (expr, precedence, flags) {
          if (expr.prefix) {
            return parenthesize([
              expr.operator,
              this.generateExpression(expr.argument, Precedence.Unary, E_TTT)
            ], Precedence.Unary, precedence);
          }
          return parenthesize([
            this.generateExpression(expr.argument, Precedence.Postfix, E_TTT),
            expr.operator
          ], Precedence.Postfix, precedence);
        },
        FunctionExpression: function (expr, precedence, flags) {
          var result = [
              generateAsyncPrefix(expr, true),
              'function'
            ];
          if (expr.id) {
            result.push(generateStarSuffix(expr) || noEmptySpace());
            result.push(generateIdentifier(expr.id));
          } else {
            result.push(generateStarSuffix(expr) || space);
          }
          result.push(this.generateFunctionBody(expr));
          return result;
        },
        ArrayPattern: function (expr, precedence, flags) {
          return this.ArrayExpression(expr, precedence, flags, true);
        },
        ArrayExpression: function (expr, precedence, flags, isPattern) {
          var result, multiline, that = this;
          if (!expr.elements.length) {
            return '[]';
          }
          multiline = isPattern ? false : expr.elements.length > 1;
          result = [
            '[',
            multiline ? newline : ''
          ];
          withIndent(function (indent) {
            var i, iz;
            for (i = 0, iz = expr.elements.length; i < iz; ++i) {
              if (!expr.elements[i]) {
                if (multiline) {
                  result.push(indent);
                }
                if (i + 1 === iz) {
                  result.push(',');
                }
              } else {
                result.push(multiline ? indent : '');
                result.push(that.generateExpression(expr.elements[i], Precedence.Assignment, E_TTT));
              }
              if (i + 1 < iz) {
                result.push(',' + (multiline ? newline : space));
              }
            }
          });
          if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
            result.push(newline);
          }
          result.push(multiline ? base : '');
          result.push(']');
          return result;
        },
        RestElement: function (expr, precedence, flags) {
          return '...' + this.generatePattern(expr.argument);
        },
        ClassExpression: function (expr, precedence, flags) {
          var result, fragment;
          result = ['class'];
          if (expr.id) {
            result = join(result, this.generateExpression(expr.id, Precedence.Sequence, E_TTT));
          }
          if (expr.superClass) {
            fragment = join('extends', this.generateExpression(expr.superClass, Precedence.Assignment, E_TTT));
            result = join(result, fragment);
          }
          result.push(space);
          result.push(this.generateStatement(expr.body, S_TFFT));
          return result;
        },
        MethodDefinition: function (expr, precedence, flags) {
          var result, fragment;
          if (expr['static']) {
            result = ['static' + space];
          } else {
            result = [];
          }
          if (expr.kind === 'get' || expr.kind === 'set') {
            fragment = [
              join(expr.kind, this.generatePropertyKey(expr.key, expr.computed)),
              this.generateFunctionBody(expr.value)
            ];
          } else {
            fragment = [
              generateMethodPrefix(expr),
              this.generatePropertyKey(expr.key, expr.computed),
              this.generateFunctionBody(expr.value)
            ];
          }
          return join(result, fragment);
        },
        Property: function (expr, precedence, flags) {
          if (expr.kind === 'get' || expr.kind === 'set') {
            return [
              expr.kind,
              noEmptySpace(),
              this.generatePropertyKey(expr.key, expr.computed),
              this.generateFunctionBody(expr.value)
            ];
          }
          if (expr.shorthand) {
            if (expr.value.type === 'AssignmentPattern') {
              return this.AssignmentPattern(expr.value, Precedence.Sequence, E_TTT);
            }
            return this.generatePropertyKey(expr.key, expr.computed);
          }
          if (expr.method) {
            return [
              generateMethodPrefix(expr),
              this.generatePropertyKey(expr.key, expr.computed),
              this.generateFunctionBody(expr.value)
            ];
          }
          return [
            this.generatePropertyKey(expr.key, expr.computed),
            ':' + space,
            this.generateExpression(expr.value, Precedence.Assignment, E_TTT)
          ];
        },
        ObjectExpression: function (expr, precedence, flags) {
          var multiline, result, fragment, that = this;
          if (!expr.properties.length) {
            return '{}';
          }
          multiline = expr.properties.length > 1;
          withIndent(function () {
            fragment = that.generateExpression(expr.properties[0], Precedence.Sequence, E_TTT);
          });
          if (!multiline) {
            if (!hasLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
              return [
                '{',
                space,
                fragment,
                space,
                '}'
              ];
            }
          }
          withIndent(function (indent) {
            var i, iz;
            result = [
              '{',
              newline,
              indent,
              fragment
            ];
            if (multiline) {
              result.push(',' + newline);
              for (i = 1, iz = expr.properties.length; i < iz; ++i) {
                result.push(indent);
                result.push(that.generateExpression(expr.properties[i], Precedence.Sequence, E_TTT));
                if (i + 1 < iz) {
                  result.push(',' + newline);
                }
              }
            }
          });
          if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
            result.push(newline);
          }
          result.push(base);
          result.push('}');
          return result;
        },
        AssignmentPattern: function (expr, precedence, flags) {
          return this.generateAssignment(expr.left, expr.right, '=', precedence, flags);
        },
        ObjectPattern: function (expr, precedence, flags) {
          var result, i, iz, multiline, property, that = this;
          if (!expr.properties.length) {
            return '{}';
          }
          multiline = false;
          if (expr.properties.length === 1) {
            property = expr.properties[0];
            if (property.value.type !== Syntax.Identifier) {
              multiline = true;
            }
          } else {
            for (i = 0, iz = expr.properties.length; i < iz; ++i) {
              property = expr.properties[i];
              if (!property.shorthand) {
                multiline = true;
                break;
              }
            }
          }
          result = [
            '{',
            multiline ? newline : ''
          ];
          withIndent(function (indent) {
            var i, iz;
            for (i = 0, iz = expr.properties.length; i < iz; ++i) {
              result.push(multiline ? indent : '');
              result.push(that.generateExpression(expr.properties[i], Precedence.Sequence, E_TTT));
              if (i + 1 < iz) {
                result.push(',' + (multiline ? newline : space));
              }
            }
          });
          if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
            result.push(newline);
          }
          result.push(multiline ? base : '');
          result.push('}');
          return result;
        },
        ThisExpression: function (expr, precedence, flags) {
          return 'this';
        },
        Super: function (expr, precedence, flags) {
          return 'super';
        },
        Identifier: function (expr, precedence, flags) {
          return generateIdentifier(expr);
        },
        ImportDefaultSpecifier: function (expr, precedence, flags) {
          return generateIdentifier(expr.id || expr.local);
        },
        ImportNamespaceSpecifier: function (expr, precedence, flags) {
          var result = ['*'];
          var id = expr.id || expr.local;
          if (id) {
            result.push(space + 'as' + noEmptySpace() + generateIdentifier(id));
          }
          return result;
        },
        ImportSpecifier: function (expr, precedence, flags) {
          var imported = expr.imported;
          var result = [imported.name];
          var local = expr.local;
          if (local && local.name !== imported.name) {
            result.push(noEmptySpace() + 'as' + noEmptySpace() + generateIdentifier(local));
          }
          return result;
        },
        ExportSpecifier: function (expr, precedence, flags) {
          var local = expr.local;
          var result = [local.name];
          var exported = expr.exported;
          if (exported && exported.name !== local.name) {
            result.push(noEmptySpace() + 'as' + noEmptySpace() + generateIdentifier(exported));
          }
          return result;
        },
        Literal: function (expr, precedence, flags) {
          var raw;
          if (expr.hasOwnProperty('raw') && parse && extra.raw) {
            try {
              raw = parse(expr.raw).body[0].expression;
              if (raw.type === Syntax.Literal) {
                if (raw.value === expr.value) {
                  return expr.raw;
                }
              }
            } catch (e) {
            }
          }
          if (expr.value === null) {
            return 'null';
          }
          if (typeof expr.value === 'string') {
            return escapeString(expr.value);
          }
          if (typeof expr.value === 'number') {
            return generateNumber(expr.value);
          }
          if (typeof expr.value === 'boolean') {
            return expr.value ? 'true' : 'false';
          }
          if (expr.regex) {
            return '/' + expr.regex.pattern + '/' + expr.regex.flags;
          }
          return generateRegExp(expr.value);
        },
        GeneratorExpression: function (expr, precedence, flags) {
          return this.ComprehensionExpression(expr, precedence, flags);
        },
        ComprehensionExpression: function (expr, precedence, flags) {
          var result, i, iz, fragment, that = this;
          result = expr.type === Syntax.GeneratorExpression ? ['('] : ['['];
          if (extra.moz.comprehensionExpressionStartsWithAssignment) {
            fragment = this.generateExpression(expr.body, Precedence.Assignment, E_TTT);
            result.push(fragment);
          }
          if (expr.blocks) {
            withIndent(function () {
              for (i = 0, iz = expr.blocks.length; i < iz; ++i) {
                fragment = that.generateExpression(expr.blocks[i], Precedence.Sequence, E_TTT);
                if (i > 0 || extra.moz.comprehensionExpressionStartsWithAssignment) {
                  result = join(result, fragment);
                } else {
                  result.push(fragment);
                }
              }
            });
          }
          if (expr.filter) {
            result = join(result, 'if' + space);
            fragment = this.generateExpression(expr.filter, Precedence.Sequence, E_TTT);
            result = join(result, [
              '(',
              fragment,
              ')'
            ]);
          }
          if (!extra.moz.comprehensionExpressionStartsWithAssignment) {
            fragment = this.generateExpression(expr.body, Precedence.Assignment, E_TTT);
            result = join(result, fragment);
          }
          result.push(expr.type === Syntax.GeneratorExpression ? ')' : ']');
          return result;
        },
        ComprehensionBlock: function (expr, precedence, flags) {
          var fragment;
          if (expr.left.type === Syntax.VariableDeclaration) {
            fragment = [
              expr.left.kind,
              noEmptySpace(),
              this.generateStatement(expr.left.declarations[0], S_FFFF)
            ];
          } else {
            fragment = this.generateExpression(expr.left, Precedence.Call, E_TTT);
          }
          fragment = join(fragment, expr.of ? 'of' : 'in');
          fragment = join(fragment, this.generateExpression(expr.right, Precedence.Sequence, E_TTT));
          return [
            'for' + space + '(',
            fragment,
            ')'
          ];
        },
        SpreadElement: function (expr, precedence, flags) {
          return [
            '...',
            this.generateExpression(expr.argument, Precedence.Assignment, E_TTT)
          ];
        },
        TaggedTemplateExpression: function (expr, precedence, flags) {
          var itemFlags = E_TTF;
          if (!(flags & F_ALLOW_CALL)) {
            itemFlags = E_TFF;
          }
          var result = [
              this.generateExpression(expr.tag, Precedence.Call, itemFlags),
              this.generateExpression(expr.quasi, Precedence.Primary, E_FFT)
            ];
          return parenthesize(result, Precedence.TaggedTemplate, precedence);
        },
        TemplateElement: function (expr, precedence, flags) {
          return expr.value.raw;
        },
        TemplateLiteral: function (expr, precedence, flags) {
          var result, i, iz;
          result = ['`'];
          for (i = 0, iz = expr.quasis.length; i < iz; ++i) {
            result.push(this.generateExpression(expr.quasis[i], Precedence.Primary, E_TTT));
            if (i + 1 < iz) {
              result.push('${' + space);
              result.push(this.generateExpression(expr.expressions[i], Precedence.Sequence, E_TTT));
              result.push(space + '}');
            }
          }
          result.push('`');
          return result;
        },
        ModuleSpecifier: function (expr, precedence, flags) {
          return this.Literal(expr, precedence, flags);
        }
      };
      merge(CodeGenerator.prototype, CodeGenerator.Expression);
      CodeGenerator.prototype.generateExpression = function (expr, precedence, flags) {
        var result, type;
        type = expr.type || Syntax.Property;
        if (extra.verbatim && expr.hasOwnProperty(extra.verbatim)) {
          return generateVerbatim(expr, precedence);
        }
        result = this[type](expr, precedence, flags);
        if (extra.comment) {
          result = addComments(expr, result);
        }
        return toSourceNodeWhenNeeded(result, expr);
      };
      CodeGenerator.prototype.generateStatement = function (stmt, flags) {
        var result, fragment;
        result = this[stmt.type](stmt, flags);
        if (extra.comment) {
          result = addComments(stmt, result);
        }
        fragment = toSourceNodeWhenNeeded(result).toString();
        if (stmt.type === Syntax.Program && !safeConcatenation && newline === '' && fragment.charAt(fragment.length - 1) === '\n') {
          result = sourceMap ? toSourceNodeWhenNeeded(result).replaceRight(/\s+$/, '') : fragment.replace(/\s+$/, '');
        }
        return toSourceNodeWhenNeeded(result, stmt);
      };
      function generateInternal(node) {
        var codegen;
        codegen = new CodeGenerator;
        if (isStatement(node)) {
          return codegen.generateStatement(node, S_TFFF);
        }
        if (isExpression(node)) {
          return codegen.generateExpression(node, Precedence.Sequence, E_TTT);
        }
        throw new Error('Unknown node type: ' + node.type);
      }
      function generate(node, options) {
        var defaultOptions = getDefaultOptions(), result, pair;
        if (options != null) {
          if (typeof options.indent === 'string') {
            defaultOptions.format.indent.style = options.indent;
          }
          if (typeof options.base === 'number') {
            defaultOptions.format.indent.base = options.base;
          }
          options = updateDeeply(defaultOptions, options);
          indent = options.format.indent.style;
          if (typeof options.base === 'string') {
            base = options.base;
          } else {
            base = stringRepeat(indent, options.format.indent.base);
          }
        } else {
          options = defaultOptions;
          indent = options.format.indent.style;
          base = stringRepeat(indent, options.format.indent.base);
        }
        json = options.format.json;
        renumber = options.format.renumber;
        hexadecimal = json ? false : options.format.hexadecimal;
        quotes = json ? 'double' : options.format.quotes;
        escapeless = options.format.escapeless;
        newline = options.format.newline;
        space = options.format.space;
        if (options.format.compact) {
          newline = space = indent = base = '';
        }
        parentheses = options.format.parentheses;
        semicolons = options.format.semicolons;
        safeConcatenation = options.format.safeConcatenation;
        directive = options.directive;
        parse = json ? null : options.parse;
        sourceMap = options.sourceMap;
        sourceCode = options.sourceCode;
        preserveBlankLines = options.format.preserveBlankLines && sourceCode !== null;
        extra = options;
        if (sourceMap) {
          if (!exports.browser) {
            SourceNode = require('/node_modules/source-map/source-map.js', module).SourceNode;
          } else {
            SourceNode = global.sourceMap.SourceNode;
          }
        }
        result = generateInternal(node);
        if (!sourceMap) {
          pair = {
            code: result.toString(),
            map: null
          };
          return options.sourceMapWithCode ? pair : pair.code;
        }
        pair = result.toStringWithSourceMap({
          file: options.file,
          sourceRoot: options.sourceMapRoot
        });
        if (options.sourceContent) {
          pair.map.setSourceContent(options.sourceMap, options.sourceContent);
        }
        if (options.sourceMapWithCode) {
          return pair;
        }
        return pair.map.toString();
      }
      FORMAT_MINIFY = {
        indent: {
          style: '',
          base: 0
        },
        renumber: true,
        hexadecimal: true,
        quotes: 'auto',
        escapeless: true,
        compact: true,
        parentheses: false,
        semicolons: false
      };
      FORMAT_DEFAULTS = getDefaultOptions().format;
      exports.version = require('/package.json', module).version;
      exports.generate = generate;
      exports.attachComments = estraverse.attachComments;
      exports.Precedence = updateDeeply({}, Precedence);
      exports.browser = false;
      exports.FORMAT_MINIFY = FORMAT_MINIFY;
      exports.FORMAT_DEFAULTS = FORMAT_DEFAULTS;
    }());
  });
  require.define('/package.json', function (module, exports, __dirname, __filename) {
    module.exports = {
      'name': 'escodegen',
      'description': 'ECMAScript code generator',
      'homepage': 'http://github.com/estools/escodegen',
      'main': 'escodegen.js',
      'bin': {
        'esgenerate': './bin/esgenerate.js',
        'escodegen': './bin/escodegen.js'
      },
      'files': [
        'LICENSE.BSD',
        'README.md',
        'bin',
        'escodegen.js',
        'package.json'
      ],
      'version': '1.11.1',
      'engines': { 'node': '>=4.0' },
      'maintainers': [{
          'name': 'Yusuke Suzuki',
          'email': 'utatane.tea@gmail.com',
          'web': 'http://github.com/Constellation'
        }],
      'repository': {
        'type': 'git',
        'url': 'http://github.com/estools/escodegen.git'
      },
      'dependencies': {
        'estraverse': '^4.2.0',
        'esutils': '^2.0.2',
        'esprima': '^3.1.3',
        'optionator': '^0.8.1'
      },
      'optionalDependencies': { 'source-map': '~0.6.1' },
      'devDependencies': {
        'acorn': '^4.0.4',
        'bluebird': '^3.4.7',
        'bower-registry-client': '^1.0.0',
        'chai': '^3.5.0',
        'commonjs-everywhere': '^0.9.7',
        'gulp': '^4.0.2',
        'gulp-eslint': '^3.0.1',
        'gulp-mocha': '^6.0.0',
        'semver': '^5.1.0'
      },
      'license': 'BSD-2-Clause',
      'scripts': {
        'test': 'gulp travis',
        'unit-test': 'gulp test',
        'lint': 'gulp lint',
        'release': 'node tools/release.js',
        'build-min': './node_modules/.bin/cjsify -ma path: tools/entry-point.js > escodegen.browser.min.js',
        'build': './node_modules/.bin/cjsify -a path: tools/entry-point.js > escodegen.browser.js'
      }
    };
  });
  require.define('/node_modules/source-map/source-map.js', function (module, exports, __dirname, __filename) {
    exports.SourceMapGenerator = require('/node_modules/source-map/lib/source-map-generator.js', module).SourceMapGenerator;
    exports.SourceMapConsumer = require('/node_modules/source-map/lib/source-map-consumer.js', module).SourceMapConsumer;
    exports.SourceNode = require('/node_modules/source-map/lib/source-node.js', module).SourceNode;
  });
  require.define('/node_modules/source-map/lib/source-node.js', function (module, exports, __dirname, __filename) {
    var SourceMapGenerator = require('/node_modules/source-map/lib/source-map-generator.js', module).SourceMapGenerator;
    var util = require('/node_modules/source-map/lib/util.js', module);
    var REGEX_NEWLINE = /(\r?\n)/;
    var NEWLINE_CODE = 10;
    var isSourceNode = '$$$isSourceNode$$$';
    function SourceNode(aLine, aColumn, aSource, aChunks, aName) {
      this.children = [];
      this.sourceContents = {};
      this.line = aLine == null ? null : aLine;
      this.column = aColumn == null ? null : aColumn;
      this.source = aSource == null ? null : aSource;
      this.name = aName == null ? null : aName;
      this[isSourceNode] = true;
      if (aChunks != null)
        this.add(aChunks);
    }
    SourceNode.fromStringWithSourceMap = function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer, aRelativePath) {
      var node = new SourceNode;
      var remainingLines = aGeneratedCode.split(REGEX_NEWLINE);
      var remainingLinesIndex = 0;
      var shiftNextLine = function () {
        var lineContents = getNextLine();
        var newLine = getNextLine() || '';
        return lineContents + newLine;
        function getNextLine() {
          return remainingLinesIndex < remainingLines.length ? remainingLines[remainingLinesIndex++] : undefined;
        }
      };
      var lastGeneratedLine = 1, lastGeneratedColumn = 0;
      var lastMapping = null;
      aSourceMapConsumer.eachMapping(function (mapping) {
        if (lastMapping !== null) {
          if (lastGeneratedLine < mapping.generatedLine) {
            addMappingWithCode(lastMapping, shiftNextLine());
            lastGeneratedLine++;
            lastGeneratedColumn = 0;
          } else {
            var nextLine = remainingLines[remainingLinesIndex] || '';
            var code = nextLine.substr(0, mapping.generatedColumn - lastGeneratedColumn);
            remainingLines[remainingLinesIndex] = nextLine.substr(mapping.generatedColumn - lastGeneratedColumn);
            lastGeneratedColumn = mapping.generatedColumn;
            addMappingWithCode(lastMapping, code);
            lastMapping = mapping;
            return;
          }
        }
        while (lastGeneratedLine < mapping.generatedLine) {
          node.add(shiftNextLine());
          lastGeneratedLine++;
        }
        if (lastGeneratedColumn < mapping.generatedColumn) {
          var nextLine = remainingLines[remainingLinesIndex] || '';
          node.add(nextLine.substr(0, mapping.generatedColumn));
          remainingLines[remainingLinesIndex] = nextLine.substr(mapping.generatedColumn);
          lastGeneratedColumn = mapping.generatedColumn;
        }
        lastMapping = mapping;
      }, this);
      if (remainingLinesIndex < remainingLines.length) {
        if (lastMapping) {
          addMappingWithCode(lastMapping, shiftNextLine());
        }
        node.add(remainingLines.splice(remainingLinesIndex).join(''));
      }
      aSourceMapConsumer.sources.forEach(function (sourceFile) {
        var content = aSourceMapConsumer.sourceContentFor(sourceFile);
        if (content != null) {
          if (aRelativePath != null) {
            sourceFile = util.join(aRelativePath, sourceFile);
          }
          node.setSourceContent(sourceFile, content);
        }
      });
      return node;
      function addMappingWithCode(mapping, code) {
        if (mapping === null || mapping.source === undefined) {
          node.add(code);
        } else {
          var source = aRelativePath ? util.join(aRelativePath, mapping.source) : mapping.source;
          node.add(new SourceNode(mapping.originalLine, mapping.originalColumn, source, code, mapping.name));
        }
      }
    };
    SourceNode.prototype.add = function SourceNode_add(aChunk) {
      if (Array.isArray(aChunk)) {
        aChunk.forEach(function (chunk) {
          this.add(chunk);
        }, this);
      } else if (aChunk[isSourceNode] || typeof aChunk === 'string') {
        if (aChunk) {
          this.children.push(aChunk);
        }
      } else {
        throw new TypeError('Expected a SourceNode, string, or an array of SourceNodes and strings. Got ' + aChunk);
      }
      return this;
    };
    SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) {
      if (Array.isArray(aChunk)) {
        for (var i = aChunk.length - 1; i >= 0; i--) {
          this.prepend(aChunk[i]);
        }
      } else if (aChunk[isSourceNode] || typeof aChunk === 'string') {
        this.children.unshift(aChunk);
      } else {
        throw new TypeError('Expected a SourceNode, string, or an array of SourceNodes and strings. Got ' + aChunk);
      }
      return this;
    };
    SourceNode.prototype.walk = function SourceNode_walk(aFn) {
      var chunk;
      for (var i = 0, len = this.children.length; i < len; i++) {
        chunk = this.children[i];
        if (chunk[isSourceNode]) {
          chunk.walk(aFn);
        } else {
          if (chunk !== '') {
            aFn(chunk, {
              source: this.source,
              line: this.line,
              column: this.column,
              name: this.name
            });
          }
        }
      }
    };
    SourceNode.prototype.join = function SourceNode_join(aSep) {
      var newChildren;
      var i;
      var len = this.children.length;
      if (len > 0) {
        newChildren = [];
        for (i = 0; i < len - 1; i++) {
          newChildren.push(this.children[i]);
          newChildren.push(aSep);
        }
        newChildren.push(this.children[i]);
        this.children = newChildren;
      }
      return this;
    };
    SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) {
      var lastChild = this.children[this.children.length - 1];
      if (lastChild[isSourceNode]) {
        lastChild.replaceRight(aPattern, aReplacement);
      } else if (typeof lastChild === 'string') {
        this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement);
      } else {
        this.children.push(''.replace(aPattern, aReplacement));
      }
      return this;
    };
    SourceNode.prototype.setSourceContent = function SourceNode_setSourceContent(aSourceFile, aSourceContent) {
      this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent;
    };
    SourceNode.prototype.walkSourceContents = function SourceNode_walkSourceContents(aFn) {
      for (var i = 0, len = this.children.length; i < len; i++) {
        if (this.children[i][isSourceNode]) {
          this.children[i].walkSourceContents(aFn);
        }
      }
      var sources = Object.keys(this.sourceContents);
      for (var i = 0, len = sources.length; i < len; i++) {
        aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]);
      }
    };
    SourceNode.prototype.toString = function SourceNode_toString() {
      var str = '';
      this.walk(function (chunk) {
        str += chunk;
      });
      return str;
    };
    SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) {
      var generated = {
          code: '',
          line: 1,
          column: 0
        };
      var map = new SourceMapGenerator(aArgs);
      var sourceMappingActive = false;
      var lastOriginalSource = null;
      var lastOriginalLine = null;
      var lastOriginalColumn = null;
      var lastOriginalName = null;
      this.walk(function (chunk, original) {
        generated.code += chunk;
        if (original.source !== null && original.line !== null && original.column !== null) {
          if (lastOriginalSource !== original.source || lastOriginalLine !== original.line || lastOriginalColumn !== original.column || lastOriginalName !== original.name) {
            map.addMapping({
              source: original.source,
              original: {
                line: original.line,
                column: original.column
              },
              generated: {
                line: generated.line,
                column: generated.column
              },
              name: original.name
            });
          }
          lastOriginalSource = original.source;
          lastOriginalLine = original.line;
          lastOriginalColumn = original.column;
          lastOriginalName = original.name;
          sourceMappingActive = true;
        } else if (sourceMappingActive) {
          map.addMapping({
            generated: {
              line: generated.line,
              column: generated.column
            }
          });
          lastOriginalSource = null;
          sourceMappingActive = false;
        }
        for (var idx = 0, length = chunk.length; idx < length; idx++) {
          if (chunk.charCodeAt(idx) === NEWLINE_CODE) {
            generated.line++;
            generated.column = 0;
            if (idx + 1 === length) {
              lastOriginalSource = null;
              sourceMappingActive = false;
            } else if (sourceMappingActive) {
              map.addMapping({
                source: original.source,
                original: {
                  line: original.line,
                  column: original.column
                },
                generated: {
                  line: generated.line,
                  column: generated.column
                },
                name: original.name
              });
            }
          } else {
            generated.column++;
          }
        }
      });
      this.walkSourceContents(function (sourceFile, sourceContent) {
        map.setSourceContent(sourceFile, sourceContent);
      });
      return {
        code: generated.code,
        map: map
      };
    };
    exports.SourceNode = SourceNode;
  });
  require.define('/node_modules/source-map/lib/util.js', function (module, exports, __dirname, __filename) {
    function getArg(aArgs, aName, aDefaultValue) {
      if (aName in aArgs) {
        return aArgs[aName];
      } else if (arguments.length === 3) {
        return aDefaultValue;
      } else {
        throw new Error('"' + aName + '" is a required argument.');
      }
    }
    exports.getArg = getArg;
    var urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.-]*)(?::(\d+))?(.*)$/;
    var dataUrlRegexp = /^data:.+\,.+$/;
    function urlParse(aUrl) {
      var match = aUrl.match(urlRegexp);
      if (!match) {
        return null;
      }
      return {
        scheme: match[1],
        auth: match[2],
        host: match[3],
        port: match[4],
        path: match[5]
      };
    }
    exports.urlParse = urlParse;
    function urlGenerate(aParsedUrl) {
      var url = '';
      if (aParsedUrl.scheme) {
        url += aParsedUrl.scheme + ':';
      }
      url += '//';
      if (aParsedUrl.auth) {
        url += aParsedUrl.auth + '@';
      }
      if (aParsedUrl.host) {
        url += aParsedUrl.host;
      }
      if (aParsedUrl.port) {
        url += ':' + aParsedUrl.port;
      }
      if (aParsedUrl.path) {
        url += aParsedUrl.path;
      }
      return url;
    }
    exports.urlGenerate = urlGenerate;
    function normalize(aPath) {
      var path = aPath;
      var url = urlParse(aPath);
      if (url) {
        if (!url.path) {
          return aPath;
        }
        path = url.path;
      }
      var isAbsolute = exports.isAbsolute(path);
      var parts = path.split(/\/+/);
      for (var part, up = 0, i = parts.length - 1; i >= 0; i--) {
        part = parts[i];
        if (part === '.') {
          parts.splice(i, 1);
        } else if (part === '..') {
          up++;
        } else if (up > 0) {
          if (part === '') {
            parts.splice(i + 1, up);
            up = 0;
          } else {
            parts.splice(i, 2);
            up--;
          }
        }
      }
      path = parts.join('/');
      if (path === '') {
        path = isAbsolute ? '/' : '.';
      }
      if (url) {
        url.path = path;
        return urlGenerate(url);
      }
      return path;
    }
    exports.normalize = normalize;
    function join(aRoot, aPath) {
      if (aRoot === '') {
        aRoot = '.';
      }
      if (aPath === '') {
        aPath = '.';
      }
      var aPathUrl = urlParse(aPath);
      var aRootUrl = urlParse(aRoot);
      if (aRootUrl) {
        aRoot = aRootUrl.path || '/';
      }
      if (aPathUrl && !aPathUrl.scheme) {
        if (aRootUrl) {
          aPathUrl.scheme = aRootUrl.scheme;
        }
        return urlGenerate(aPathUrl);
      }
      if (aPathUrl || aPath.match(dataUrlRegexp)) {
        return aPath;
      }
      if (aRootUrl && !aRootUrl.host && !aRootUrl.path) {
        aRootUrl.host = aPath;
        return urlGenerate(aRootUrl);
      }
      var joined = aPath.charAt(0) === '/' ? aPath : normalize(aRoot.replace(/\/+$/, '') + '/' + aPath);
      if (aRootUrl) {
        aRootUrl.path = joined;
        return urlGenerate(aRootUrl);
      }
      return joined;
    }
    exports.join = join;
    exports.isAbsolute = function (aPath) {
      return aPath.charAt(0) === '/' || urlRegexp.test(aPath);
    };
    function relative(aRoot, aPath) {
      if (aRoot === '') {
        aRoot = '.';
      }
      aRoot = aRoot.replace(/\/$/, '');
      var level = 0;
      while (aPath.indexOf(aRoot + '/') !== 0) {
        var index = aRoot.lastIndexOf('/');
        if (index < 0) {
          return aPath;
        }
        aRoot = aRoot.slice(0, index);
        if (aRoot.match(/^([^\/]+:\/)?\/*$/)) {
          return aPath;
        }
        ++level;
      }
      return Array(level + 1).join('../') + aPath.substr(aRoot.length + 1);
    }
    exports.relative = relative;
    var supportsNullProto = function () {
        var obj = Object.create(null);
        return !('__proto__' in obj);
      }();
    function identity(s) {
      return s;
    }
    function toSetString(aStr) {
      if (isProtoString(aStr)) {
        return '$' + aStr;
      }
      return aStr;
    }
    exports.toSetString = supportsNullProto ? identity : toSetString;
    function fromSetString(aStr) {
      if (isProtoString(aStr)) {
        return aStr.slice(1);
      }
      return aStr;
    }
    exports.fromSetString = supportsNullProto ? identity : fromSetString;
    function isProtoString(s) {
      if (!s) {
        return false;
      }
      var length = s.length;
      if (length < 9) {
        return false;
      }
      if (s.charCodeAt(length - 1) !== 95 || s.charCodeAt(length - 2) !== 95 || s.charCodeAt(length - 3) !== 111 || s.charCodeAt(length - 4) !== 116 || s.charCodeAt(length - 5) !== 111 || s.charCodeAt(length - 6) !== 114 || s.charCodeAt(length - 7) !== 112 || s.charCodeAt(length - 8) !== 95 || s.charCodeAt(length - 9) !== 95) {
        return false;
      }
      for (var i = length - 10; i >= 0; i--) {
        if (s.charCodeAt(i) !== 36) {
          return false;
        }
      }
      return true;
    }
    function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) {
      var cmp = strcmp(mappingA.source, mappingB.source);
      if (cmp !== 0) {
        return cmp;
      }
      cmp = mappingA.originalLine - mappingB.originalLine;
      if (cmp !== 0) {
        return cmp;
      }
      cmp = mappingA.originalColumn - mappingB.originalColumn;
      if (cmp !== 0 || onlyCompareOriginal) {
        return cmp;
      }
      cmp = mappingA.generatedColumn - mappingB.generatedColumn;
      if (cmp !== 0) {
        return cmp;
      }
      cmp = mappingA.generatedLine - mappingB.generatedLine;
      if (cmp !== 0) {
        return cmp;
      }
      return strcmp(mappingA.name, mappingB.name);
    }
    exports.compareByOriginalPositions = compareByOriginalPositions;
    function compareByGeneratedPositionsDeflated(mappingA, mappingB, onlyCompareGenerated) {
      var cmp = mappingA.generatedLine - mappingB.generatedLine;
      if (cmp !== 0) {
        return cmp;
      }
      cmp = mappingA.generatedColumn - mappingB.generatedColumn;
      if (cmp !== 0 || onlyCompareGenerated) {
        return cmp;
      }
      cmp = strcmp(mappingA.source, mappingB.source);
      if (cmp !== 0) {
        return cmp;
      }
      cmp = mappingA.originalLine - mappingB.originalLine;
      if (cmp !== 0) {
        return cmp;
      }
      cmp = mappingA.originalColumn - mappingB.originalColumn;
      if (cmp !== 0) {
        return cmp;
      }
      return strcmp(mappingA.name, mappingB.name);
    }
    exports.compareByGeneratedPositionsDeflated = compareByGeneratedPositionsDeflated;
    function strcmp(aStr1, aStr2) {
      if (aStr1 === aStr2) {
        return 0;
      }
      if (aStr1 === null) {
        return 1;
      }
      if (aStr2 === null) {
        return -1;
      }
      if (aStr1 > aStr2) {
        return 1;
      }
      return -1;
    }
    function compareByGeneratedPositionsInflated(mappingA, mappingB) {
      var cmp = mappingA.generatedLine - mappingB.generatedLine;
      if (cmp !== 0) {
        return cmp;
      }
      cmp = mappingA.generatedColumn - mappingB.generatedColumn;
      if (cmp !== 0) {
        return cmp;
      }
      cmp = strcmp(mappingA.source, mappingB.source);
      if (cmp !== 0) {
        return cmp;
      }
      cmp = mappingA.originalLine - mappingB.originalLine;
      if (cmp !== 0) {
        return cmp;
      }
      cmp = mappingA.originalColumn - mappingB.originalColumn;
      if (cmp !== 0) {
        return cmp;
      }
      return strcmp(mappingA.name, mappingB.name);
    }
    exports.compareByGeneratedPositionsInflated = compareByGeneratedPositionsInflated;
    function parseSourceMapInput(str) {
      return JSON.parse(str.replace(/^\)]}'[^\n]*\n/, ''));
    }
    exports.parseSourceMapInput = parseSourceMapInput;
    function computeSourceURL(sourceRoot, sourceURL, sourceMapURL) {
      sourceURL = sourceURL || '';
      if (sourceRoot) {
        if (sourceRoot[sourceRoot.length - 1] !== '/' && sourceURL[0] !== '/') {
          sourceRoot += '/';
        }
        sourceURL = sourceRoot + sourceURL;
      }
      if (sourceMapURL) {
        var parsed = urlParse(sourceMapURL);
        if (!parsed) {
          throw new Error('sourceMapURL could not be parsed');
        }
        if (parsed.path) {
          var index = parsed.path.lastIndexOf('/');
          if (index >= 0) {
            parsed.path = parsed.path.substring(0, index + 1);
          }
        }
        sourceURL = join(urlGenerate(parsed), sourceURL);
      }
      return normalize(sourceURL);
    }
    exports.computeSourceURL = computeSourceURL;
  });
  require.define('/node_modules/source-map/lib/source-map-generator.js', function (module, exports, __dirname, __filename) {
    var base64VLQ = require('/node_modules/source-map/lib/base64-vlq.js', module);
    var util = require('/node_modules/source-map/lib/util.js', module);
    var ArraySet = require('/node_modules/source-map/lib/array-set.js', module).ArraySet;
    var MappingList = require('/node_modules/source-map/lib/mapping-list.js', module).MappingList;
    function SourceMapGenerator(aArgs) {
      if (!aArgs) {
        aArgs = {};
      }
      this._file = util.getArg(aArgs, 'file', null);
      this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null);
      this._skipValidation = util.getArg(aArgs, 'skipValidation', false);
      this._sources = new ArraySet;
      this._names = new ArraySet;
      this._mappings = new MappingList;
      this._sourcesContents = null;
    }
    SourceMapGenerator.prototype._version = 3;
    SourceMapGenerator.fromSourceMap = function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) {
      var sourceRoot = aSourceMapConsumer.sourceRoot;
      var generator = new SourceMapGenerator({
          file: aSourceMapConsumer.file,
          sourceRoot: sourceRoot
        });
      aSourceMapConsumer.eachMapping(function (mapping) {
        var newMapping = {
            generated: {
              line: mapping.generatedLine,
              column: mapping.generatedColumn
            }
          };
        if (mapping.source != null) {
          newMapping.source = mapping.source;
          if (sourceRoot != null) {
            newMapping.source = util.relative(sourceRoot, newMapping.source);
          }
          newMapping.original = {
            line: mapping.originalLine,
            column: mapping.originalColumn
          };
          if (mapping.name != null) {
            newMapping.name = mapping.name;
          }
        }
        generator.addMapping(newMapping);
      });
      aSourceMapConsumer.sources.forEach(function (sourceFile) {
        var sourceRelative = sourceFile;
        if (sourceRoot !== null) {
          sourceRelative = util.relative(sourceRoot, sourceFile);
        }
        if (!generator._sources.has(sourceRelative)) {
          generator._sources.add(sourceRelative);
        }
        var content = aSourceMapConsumer.sourceContentFor(sourceFile);
        if (content != null) {
          generator.setSourceContent(sourceFile, content);
        }
      });
      return generator;
    };
    SourceMapGenerator.prototype.addMapping = function SourceMapGenerator_addMapping(aArgs) {
      var generated = util.getArg(aArgs, 'generated');
      var original = util.getArg(aArgs, 'original', null);
      var source = util.getArg(aArgs, 'source', null);
      var name = util.getArg(aArgs, 'name', null);
      if (!this._skipValidation) {
        this._validateMapping(generated, original, source, name);
      }
      if (source != null) {
        source = String(source);
        if (!this._sources.has(source)) {
          this._sources.add(source);
        }
      }
      if (name != null) {
        name = String(name);
        if (!this._names.has(name)) {
          this._names.add(name);
        }
      }
      this._mappings.add({
        generatedLine: generated.line,
        generatedColumn: generated.column,
        originalLine: original != null && original.line,
        originalColumn: original != null && original.column,
        source: source,
        name: name
      });
    };
    SourceMapGenerator.prototype.setSourceContent = function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) {
      var source = aSourceFile;
      if (this._sourceRoot != null) {
        source = util.relative(this._sourceRoot, source);
      }
      if (aSourceContent != null) {
        if (!this._sourcesContents) {
          this._sourcesContents = Object.create(null);
        }
        this._sourcesContents[util.toSetString(source)] = aSourceContent;
      } else if (this._sourcesContents) {
        delete this._sourcesContents[util.toSetString(source)];
        if (Object.keys(this._sourcesContents).length === 0) {
          this._sourcesContents = null;
        }
      }
    };
    SourceMapGenerator.prototype.applySourceMap = function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile, aSourceMapPath) {
      var sourceFile = aSourceFile;
      if (aSourceFile == null) {
        if (aSourceMapConsumer.file == null) {
          throw new Error('SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, ' + 'or the source map\'s "file" property. Both were omitted.');
        }
        sourceFile = aSourceMapConsumer.file;
      }
      var sourceRoot = this._sourceRoot;
      if (sourceRoot != null) {
        sourceFile = util.relative(sourceRoot, sourceFile);
      }
      var newSources = new ArraySet;
      var newNames = new ArraySet;
      this._mappings.unsortedForEach(function (mapping) {
        if (mapping.source === sourceFile && mapping.originalLine != null) {
          var original = aSourceMapConsumer.originalPositionFor({
              line: mapping.originalLine,
              column: mapping.originalColumn
            });
          if (original.source != null) {
            mapping.source = original.source;
            if (aSourceMapPath != null) {
              mapping.source = util.join(aSourceMapPath, mapping.source);
            }
            if (sourceRoot != null) {
              mapping.source = util.relative(sourceRoot, mapping.source);
            }
            mapping.originalLine = original.line;
            mapping.originalColumn = original.column;
            if (original.name != null) {
              mapping.name = original.name;
            }
          }
        }
        var source = mapping.source;
        if (source != null && !newSources.has(source)) {
          newSources.add(source);
        }
        var name = mapping.name;
        if (name != null && !newNames.has(name)) {
          newNames.add(name);
        }
      }, this);
      this._sources = newSources;
      this._names = newNames;
      aSourceMapConsumer.sources.forEach(function (sourceFile) {
        var content = aSourceMapConsumer.sourceContentFor(sourceFile);
        if (content != null) {
          if (aSourceMapPath != null) {
            sourceFile = util.join(aSourceMapPath, sourceFile);
          }
          if (sourceRoot != null) {
            sourceFile = util.relative(sourceRoot, sourceFile);
          }
          this.setSourceContent(sourceFile, content);
        }
      }, this);
    };
    SourceMapGenerator.prototype._validateMapping = function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, aName) {
      if (aOriginal && typeof aOriginal.line !== 'number' && typeof aOriginal.column !== 'number') {
        throw new Error('original.line and original.column are not numbers -- you probably meant to omit ' + 'the original mapping entirely and only map the generated position. If so, pass ' + 'null for the original mapping instead of an object with empty or null values.');
      }
      if (aGenerated && 'line' in aGenerated && 'column' in aGenerated && aGenerated.line > 0 && aGenerated.column >= 0 && !aOriginal && !aSource && !aName) {
        return;
      } else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated && aOriginal && 'line' in aOriginal && 'column' in aOriginal && aGenerated.line > 0 && aGenerated.column >= 0 && aOriginal.line > 0 && aOriginal.column >= 0 && aSource) {
        return;
      } else {
        throw new Error('Invalid mapping: ' + JSON.stringify({
          generated: aGenerated,
          source: aSource,
          original: aOriginal,
          name: aName
        }));
      }
    };
    SourceMapGenerator.prototype._serializeMappings = function SourceMapGenerator_serializeMappings() {
      var previousGeneratedColumn = 0;
      var previousGeneratedLine = 1;
      var previousOriginalColumn = 0;
      var previousOriginalLine = 0;
      var previousName = 0;
      var previousSource = 0;
      var result = '';
      var next;
      var mapping;
      var nameIdx;
      var sourceIdx;
      var mappings = this._mappings.toArray();
      for (var i = 0, len = mappings.length; i < len; i++) {
        mapping = mappings[i];
        next = '';
        if (mapping.generatedLine !== previousGeneratedLine) {
          previousGeneratedColumn = 0;
          while (mapping.generatedLine !== previousGeneratedLine) {
            next += ';';
            previousGeneratedLine++;
          }
        } else {
          if (i > 0) {
            if (!util.compareByGeneratedPositionsInflated(mapping, mappings[i - 1])) {
              continue;
            }
            next += ',';
          }
        }
        next += base64VLQ.encode(mapping.generatedColumn - previousGeneratedColumn);
        previousGeneratedColumn = mapping.generatedColumn;
        if (mapping.source != null) {
          sourceIdx = this._sources.indexOf(mapping.source);
          next += base64VLQ.encode(sourceIdx - previousSource);
          previousSource = sourceIdx;
          next += base64VLQ.encode(mapping.originalLine - 1 - previousOriginalLine);
          previousOriginalLine = mapping.originalLine - 1;
          next += base64VLQ.encode(mapping.originalColumn - previousOriginalColumn);
          previousOriginalColumn = mapping.originalColumn;
          if (mapping.name != null) {
            nameIdx = this._names.indexOf(mapping.name);
            next += base64VLQ.encode(nameIdx - previousName);
            previousName = nameIdx;
          }
        }
        result += next;
      }
      return result;
    };
    SourceMapGenerator.prototype._generateSourcesContent = function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) {
      return aSources.map(function (source) {
        if (!this._sourcesContents) {
          return null;
        }
        if (aSourceRoot != null) {
          source = util.relative(aSourceRoot, source);
        }
        var key = util.toSetString(source);
        return Object.prototype.hasOwnProperty.call(this._sourcesContents, key) ? this._sourcesContents[key] : null;
      }, this);
    };
    SourceMapGenerator.prototype.toJSON = function SourceMapGenerator_toJSON() {
      var map = {
          version: this._version,
          sources: this._sources.toArray(),
          names: this._names.toArray(),
          mappings: this._serializeMappings()
        };
      if (this._file != null) {
        map.file = this._file;
      }
      if (this._sourceRoot != null) {
        map.sourceRoot = this._sourceRoot;
      }
      if (this._sourcesContents) {
        map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot);
      }
      return map;
    };
    SourceMapGenerator.prototype.toString = function SourceMapGenerator_toString() {
      return JSON.stringify(this.toJSON());
    };
    exports.SourceMapGenerator = SourceMapGenerator;
  });
  require.define('/node_modules/source-map/lib/mapping-list.js', function (module, exports, __dirname, __filename) {
    var util = require('/node_modules/source-map/lib/util.js', module);
    function generatedPositionAfter(mappingA, mappingB) {
      var lineA = mappingA.generatedLine;
      var lineB = mappingB.generatedLine;
      var columnA = mappingA.generatedColumn;
      var columnB = mappingB.generatedColumn;
      return lineB > lineA || lineB == lineA && columnB >= columnA || util.compareByGeneratedPositionsInflated(mappingA, mappingB) <= 0;
    }
    function MappingList() {
      this._array = [];
      this._sorted = true;
      this._last = {
        generatedLine: -1,
        generatedColumn: 0
      };
    }
    MappingList.prototype.unsortedForEach = function MappingList_forEach(aCallback, aThisArg) {
      this._array.forEach(aCallback, aThisArg);
    };
    MappingList.prototype.add = function MappingList_add(aMapping) {
      if (generatedPositionAfter(this._last, aMapping)) {
        this._last = aMapping;
        this._array.push(aMapping);
      } else {
        this._sorted = false;
        this._array.push(aMapping);
      }
    };
    MappingList.prototype.toArray = function MappingList_toArray() {
      if (!this._sorted) {
        this._array.sort(util.compareByGeneratedPositionsInflated);
        this._sorted = true;
      }
      return this._array;
    };
    exports.MappingList = MappingList;
  });
  require.define('/node_modules/source-map/lib/array-set.js', function (module, exports, __dirname, __filename) {
    var util = require('/node_modules/source-map/lib/util.js', module);
    var has = Object.prototype.hasOwnProperty;
    var hasNativeMap = typeof Map !== 'undefined';
    function ArraySet() {
      this._array = [];
      this._set = hasNativeMap ? new Map : Object.create(null);
    }
    ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) {
      var set = new ArraySet;
      for (var i = 0, len = aArray.length; i < len; i++) {
        set.add(aArray[i], aAllowDuplicates);
      }
      return set;
    };
    ArraySet.prototype.size = function ArraySet_size() {
      return hasNativeMap ? this._set.size : Object.getOwnPropertyNames(this._set).length;
    };
    ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) {
      var sStr = hasNativeMap ? aStr : util.toSetString(aStr);
      var isDuplicate = hasNativeMap ? this.has(aStr) : has.call(this._set, sStr);
      var idx = this._array.length;
      if (!isDuplicate || aAllowDuplicates) {
        this._array.push(aStr);
      }
      if (!isDuplicate) {
        if (hasNativeMap) {
          this._set.set(aStr, idx);
        } else {
          this._set[sStr] = idx;
        }
      }
    };
    ArraySet.prototype.has = function ArraySet_has(aStr) {
      if (hasNativeMap) {
        return this._set.has(aStr);
      } else {
        var sStr = util.toSetString(aStr);
        return has.call(this._set, sStr);
      }
    };
    ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) {
      if (hasNativeMap) {
        var idx = this._set.get(aStr);
        if (idx >= 0) {
          return idx;
        }
      } else {
        var sStr = util.toSetString(aStr);
        if (has.call(this._set, sStr)) {
          return this._set[sStr];
        }
      }
      throw new Error('"' + aStr + '" is not in the set.');
    };
    ArraySet.prototype.at = function ArraySet_at(aIdx) {
      if (aIdx >= 0 && aIdx < this._array.length) {
        return this._array[aIdx];
      }
      throw new Error('No element indexed by ' + aIdx);
    };
    ArraySet.prototype.toArray = function ArraySet_toArray() {
      return this._array.slice();
    };
    exports.ArraySet = ArraySet;
  });
  require.define('/node_modules/source-map/lib/base64-vlq.js', function (module, exports, __dirname, __filename) {
    var base64 = require('/node_modules/source-map/lib/base64.js', module);
    var VLQ_BASE_SHIFT = 5;
    var VLQ_BASE = 1 << VLQ_BASE_SHIFT;
    var VLQ_BASE_MASK = VLQ_BASE - 1;
    var VLQ_CONTINUATION_BIT = VLQ_BASE;
    function toVLQSigned(aValue) {
      return aValue < 0 ? (-aValue << 1) + 1 : (aValue << 1) + 0;
    }
    function fromVLQSigned(aValue) {
      var isNegative = (aValue & 1) === 1;
      var shifted = aValue >> 1;
      return isNegative ? -shifted : shifted;
    }
    exports.encode = function base64VLQ_encode(aValue) {
      var encoded = '';
      var digit;
      var vlq = toVLQSigned(aValue);
      do {
        digit = vlq & VLQ_BASE_MASK;
        vlq >>>= VLQ_BASE_SHIFT;
        if (vlq > 0) {
          digit |= VLQ_CONTINUATION_BIT;
        }
        encoded += base64.encode(digit);
      } while (vlq > 0);
      return encoded;
    };
    exports.decode = function base64VLQ_decode(aStr, aIndex, aOutParam) {
      var strLen = aStr.length;
      var result = 0;
      var shift = 0;
      var continuation, digit;
      do {
        if (aIndex >= strLen) {
          throw new Error('Expected more digits in base 64 VLQ value.');
        }
        digit = base64.decode(aStr.charCodeAt(aIndex++));
        if (digit === -1) {
          throw new Error('Invalid base64 digit: ' + aStr.charAt(aIndex - 1));
        }
        continuation = !!(digit & VLQ_CONTINUATION_BIT);
        digit &= VLQ_BASE_MASK;
        result = result + (digit << shift);
        shift += VLQ_BASE_SHIFT;
      } while (continuation);
      aOutParam.value = fromVLQSigned(result);
      aOutParam.rest = aIndex;
    };
  });
  require.define('/node_modules/source-map/lib/base64.js', function (module, exports, __dirname, __filename) {
    var intToCharMap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('');
    exports.encode = function (number) {
      if (0 <= number && number < intToCharMap.length) {
        return intToCharMap[number];
      }
      throw new TypeError('Must be between 0 and 63: ' + number);
    };
    exports.decode = function (charCode) {
      var bigA = 65;
      var bigZ = 90;
      var littleA = 97;
      var littleZ = 122;
      var zero = 48;
      var nine = 57;
      var plus = 43;
      var slash = 47;
      var littleOffset = 26;
      var numberOffset = 52;
      if (bigA <= charCode && charCode <= bigZ) {
        return charCode - bigA;
      }
      if (littleA <= charCode && charCode <= littleZ) {
        return charCode - littleA + littleOffset;
      }
      if (zero <= charCode && charCode <= nine) {
        return charCode - zero + numberOffset;
      }
      if (charCode == plus) {
        return 62;
      }
      if (charCode == slash) {
        return 63;
      }
      return -1;
    };
  });
  require.define('/node_modules/source-map/lib/source-map-consumer.js', function (module, exports, __dirname, __filename) {
    var util = require('/node_modules/source-map/lib/util.js', module);
    var binarySearch = require('/node_modules/source-map/lib/binary-search.js', module);
    var ArraySet = require('/node_modules/source-map/lib/array-set.js', module).ArraySet;
    var base64VLQ = require('/node_modules/source-map/lib/base64-vlq.js', module);
    var quickSort = require('/node_modules/source-map/lib/quick-sort.js', module).quickSort;
    function SourceMapConsumer(aSourceMap, aSourceMapURL) {
      var sourceMap = aSourceMap;
      if (typeof aSourceMap === 'string') {
        sourceMap = util.parseSourceMapInput(aSourceMap);
      }
      return sourceMap.sections != null ? new IndexedSourceMapConsumer(sourceMap, aSourceMapURL) : new BasicSourceMapConsumer(sourceMap, aSourceMapURL);
    }
    SourceMapConsumer.fromSourceMap = function (aSourceMap, aSourceMapURL) {
      return BasicSourceMapConsumer.fromSourceMap(aSourceMap, aSourceMapURL);
    };
    SourceMapConsumer.prototype._version = 3;
    SourceMapConsumer.prototype.__generatedMappings = null;
    Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', {
      configurable: true,
      enumerable: true,
      get: function () {
        if (!this.__generatedMappings) {
          this._parseMappings(this._mappings, this.sourceRoot);
        }
        return this.__generatedMappings;
      }
    });
    SourceMapConsumer.prototype.__originalMappings = null;
    Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', {
      configurable: true,
      enumerable: true,
      get: function () {
        if (!this.__originalMappings) {
          this._parseMappings(this._mappings, this.sourceRoot);
        }
        return this.__originalMappings;
      }
    });
    SourceMapConsumer.prototype._charIsMappingSeparator = function SourceMapConsumer_charIsMappingSeparator(aStr, index) {
      var c = aStr.charAt(index);
      return c === ';' || c === ',';
    };
    SourceMapConsumer.prototype._parseMappings = function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
      throw new Error('Subclasses must implement _parseMappings');
    };
    SourceMapConsumer.GENERATED_ORDER = 1;
    SourceMapConsumer.ORIGINAL_ORDER = 2;
    SourceMapConsumer.GREATEST_LOWER_BOUND = 1;
    SourceMapConsumer.LEAST_UPPER_BOUND = 2;
    SourceMapConsumer.prototype.eachMapping = function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) {
      var context = aContext || null;
      var order = aOrder || SourceMapConsumer.GENERATED_ORDER;
      var mappings;
      switch (order) {
      case SourceMapConsumer.GENERATED_ORDER:
        mappings = this._generatedMappings;
        break;
      case SourceMapConsumer.ORIGINAL_ORDER:
        mappings = this._originalMappings;
        break;
      default:
        throw new Error('Unknown order of iteration.');
      }
      var sourceRoot = this.sourceRoot;
      mappings.map(function (mapping) {
        var source = mapping.source === null ? null : this._sources.at(mapping.source);
        source = util.computeSourceURL(sourceRoot, source, this._sourceMapURL);
        return {
          source: source,
          generatedLine: mapping.generatedLine,
          generatedColumn: mapping.generatedColumn,
          originalLine: mapping.originalLine,
          originalColumn: mapping.originalColumn,
          name: mapping.name === null ? null : this._names.at(mapping.name)
        };
      }, this).forEach(aCallback, context);
    };
    SourceMapConsumer.prototype.allGeneratedPositionsFor = function SourceMapConsumer_allGeneratedPositionsFor(aArgs) {
      var line = util.getArg(aArgs, 'line');
      var needle = {
          source: util.getArg(aArgs, 'source'),
          originalLine: line,
          originalColumn: util.getArg(aArgs, 'column', 0)
        };
      needle.source = this._findSourceIndex(needle.source);
      if (needle.source < 0) {
        return [];
      }
      var mappings = [];
      var index = this._findMapping(needle, this._originalMappings, 'originalLine', 'originalColumn', util.compareByOriginalPositions, binarySearch.LEAST_UPPER_BOUND);
      if (index >= 0) {
        var mapping = this._originalMappings[index];
        if (aArgs.column === undefined) {
          var originalLine = mapping.originalLine;
          while (mapping && mapping.originalLine === originalLine) {
            mappings.push({
              line: util.getArg(mapping, 'generatedLine', null),
              column: util.getArg(mapping, 'generatedColumn', null),
              lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
            });
            mapping = this._originalMappings[++index];
          }
        } else {
          var originalColumn = mapping.originalColumn;
          while (mapping && mapping.originalLine === line && mapping.originalColumn == originalColumn) {
            mappings.push({
              line: util.getArg(mapping, 'generatedLine', null),
              column: util.getArg(mapping, 'generatedColumn', null),
              lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
            });
            mapping = this._originalMappings[++index];
          }
        }
      }
      return mappings;
    };
    exports.SourceMapConsumer = SourceMapConsumer;
    function BasicSourceMapConsumer(aSourceMap, aSourceMapURL) {
      var sourceMap = aSourceMap;
      if (typeof aSourceMap === 'string') {
        sourceMap = util.parseSourceMapInput(aSourceMap);
      }
      var version = util.getArg(sourceMap, 'version');
      var sources = util.getArg(sourceMap, 'sources');
      var names = util.getArg(sourceMap, 'names', []);
      var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null);
      var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null);
      var mappings = util.getArg(sourceMap, 'mappings');
      var file = util.getArg(sourceMap, 'file', null);
      if (version != this._version) {
        throw new Error('Unsupported version: ' + version);
      }
      if (sourceRoot) {
        sourceRoot = util.normalize(sourceRoot);
      }
      sources = sources.map(String).map(util.normalize).map(function (source) {
        return sourceRoot && util.isAbsolute(sourceRoot) && util.isAbsolute(source) ? util.relative(sourceRoot, source) : source;
      });
      this._names = ArraySet.fromArray(names.map(String), true);
      this._sources = ArraySet.fromArray(sources, true);
      this._absoluteSources = this._sources.toArray().map(function (s) {
        return util.computeSourceURL(sourceRoot, s, aSourceMapURL);
      });
      this.sourceRoot = sourceRoot;
      this.sourcesContent = sourcesContent;
      this._mappings = mappings;
      this._sourceMapURL = aSourceMapURL;
      this.file = file;
    }
    BasicSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);
    BasicSourceMapConsumer.prototype.consumer = SourceMapConsumer;
    BasicSourceMapConsumer.prototype._findSourceIndex = function (aSource) {
      var relativeSource = aSource;
      if (this.sourceRoot != null) {
        relativeSource = util.relative(this.sourceRoot, relativeSource);
      }
      if (this._sources.has(relativeSource)) {
        return this._sources.indexOf(relativeSource);
      }
      var i;
      for (i = 0; i < this._absoluteSources.length; ++i) {
        if (this._absoluteSources[i] == aSource) {
          return i;
        }
      }
      return -1;
    };
    BasicSourceMapConsumer.fromSourceMap = function SourceMapConsumer_fromSourceMap(aSourceMap, aSourceMapURL) {
      var smc = Object.create(BasicSourceMapConsumer.prototype);
      var names = smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true);
      var sources = smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true);
      smc.sourceRoot = aSourceMap._sourceRoot;
      smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), smc.sourceRoot);
      smc.file = aSourceMap._file;
      smc._sourceMapURL = aSourceMapURL;
      smc._absoluteSources = smc._sources.toArray().map(function (s) {
        return util.computeSourceURL(smc.sourceRoot, s, aSourceMapURL);
      });
      var generatedMappings = aSourceMap._mappings.toArray().slice();
      var destGeneratedMappings = smc.__generatedMappings = [];
      var destOriginalMappings = smc.__originalMappings = [];
      for (var i = 0, length = generatedMappings.length; i < length; i++) {
        var srcMapping = generatedMappings[i];
        var destMapping = new Mapping;
        destMapping.generatedLine = srcMapping.generatedLine;
        destMapping.generatedColumn = srcMapping.generatedColumn;
        if (srcMapping.source) {
          destMapping.source = sources.indexOf(srcMapping.source);
          destMapping.originalLine = srcMapping.originalLine;
          destMapping.originalColumn = srcMapping.originalColumn;
          if (srcMapping.name) {
            destMapping.name = names.indexOf(srcMapping.name);
          }
          destOriginalMappings.push(destMapping);
        }
        destGeneratedMappings.push(destMapping);
      }
      quickSort(smc.__originalMappings, util.compareByOriginalPositions);
      return smc;
    };
    BasicSourceMapConsumer.prototype._version = 3;
    Object.defineProperty(BasicSourceMapConsumer.prototype, 'sources', {
      get: function () {
        return this._absoluteSources.slice();
      }
    });
    function Mapping() {
      this.generatedLine = 0;
      this.generatedColumn = 0;
      this.source = null;
      this.originalLine = null;
      this.originalColumn = null;
      this.name = null;
    }
    BasicSourceMapConsumer.prototype._parseMappings = function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
      var generatedLine = 1;
      var previousGeneratedColumn = 0;
      var previousOriginalLine = 0;
      var previousOriginalColumn = 0;
      var previousSource = 0;
      var previousName = 0;
      var length = aStr.length;
      var index = 0;
      var cachedSegments = {};
      var temp = {};
      var originalMappings = [];
      var generatedMappings = [];
      var mapping, str, segment, end, value;
      while (index < length) {
        if (aStr.charAt(index) === ';') {
          generatedLine++;
          index++;
          previousGeneratedColumn = 0;
        } else if (aStr.charAt(index) === ',') {
          index++;
        } else {
          mapping = new Mapping;
          mapping.generatedLine = generatedLine;
          for (end = index; end < length; end++) {
            if (this._charIsMappingSeparator(aStr, end)) {
              break;
            }
          }
          str = aStr.slice(index, end);
          segment = cachedSegments[str];
          if (segment) {
            index += str.length;
          } else {
            segment = [];
            while (index < end) {
              base64VLQ.decode(aStr, index, temp);
              value = temp.value;
              index = temp.rest;
              segment.push(value);
            }
            if (segment.length === 2) {
              throw new Error('Found a source, but no line and column');
            }
            if (segment.length === 3) {
              throw new Error('Found a source and line, but no column');
            }
            cachedSegments[str] = segment;
          }
          mapping.generatedColumn = previousGeneratedColumn + segment[0];
          previousGeneratedColumn = mapping.generatedColumn;
          if (segment.length > 1) {
            mapping.source = previousSource + segment[1];
            previousSource += segment[1];
            mapping.originalLine = previousOriginalLine + segment[2];
            previousOriginalLine = mapping.originalLine;
            mapping.originalLine += 1;
            mapping.originalColumn = previousOriginalColumn + segment[3];
            previousOriginalColumn = mapping.originalColumn;
            if (segment.length > 4) {
              mapping.name = previousName + segment[4];
              previousName += segment[4];
            }
          }
          generatedMappings.push(mapping);
          if (typeof mapping.originalLine === 'number') {
            originalMappings.push(mapping);
          }
        }
      }
      quickSort(generatedMappings, util.compareByGeneratedPositionsDeflated);
      this.__generatedMappings = generatedMappings;
      quickSort(originalMappings, util.compareByOriginalPositions);
      this.__originalMappings = originalMappings;
    };
    BasicSourceMapConsumer.prototype._findMapping = function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, aColumnName, aComparator, aBias) {
      if (aNeedle[aLineName] <= 0) {
        throw new TypeError('Line must be greater than or equal to 1, got ' + aNeedle[aLineName]);
      }
      if (aNeedle[aColumnName] < 0) {
        throw new TypeError('Column must be greater than or equal to 0, got ' + aNeedle[aColumnName]);
      }
      return binarySearch.search(aNeedle, aMappings, aComparator, aBias);
    };
    BasicSourceMapConsumer.prototype.computeColumnSpans = function SourceMapConsumer_computeColumnSpans() {
      for (var index = 0; index < this._generatedMappings.length; ++index) {
        var mapping = this._generatedMappings[index];
        if (index + 1 < this._generatedMappings.length) {
          var nextMapping = this._generatedMappings[index + 1];
          if (mapping.generatedLine === nextMapping.generatedLine) {
            mapping.lastGeneratedColumn = nextMapping.generatedColumn - 1;
            continue;
          }
        }
        mapping.lastGeneratedColumn = Infinity;
      }
    };
    BasicSourceMapConsumer.prototype.originalPositionFor = function SourceMapConsumer_originalPositionFor(aArgs) {
      var needle = {
          generatedLine: util.getArg(aArgs, 'line'),
          generatedColumn: util.getArg(aArgs, 'column')
        };
      var index = this._findMapping(needle, this._generatedMappings, 'generatedLine', 'generatedColumn', util.compareByGeneratedPositionsDeflated, util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND));
      if (index >= 0) {
        var mapping = this._generatedMappings[index];
        if (mapping.generatedLine === needle.generatedLine) {
          var source = util.getArg(mapping, 'source', null);
          if (source !== null) {
            source = this._sources.at(source);
            source = util.computeSourceURL(this.sourceRoot, source, this._sourceMapURL);
          }
          var name = util.getArg(mapping, 'name', null);
          if (name !== null) {
            name = this._names.at(name);
          }
          return {
            source: source,
            line: util.getArg(mapping, 'originalLine', null),
            column: util.getArg(mapping, 'originalColumn', null),
            name: name
          };
        }
      }
      return {
        source: null,
        line: null,
        column: null,
        name: null
      };
    };
    BasicSourceMapConsumer.prototype.hasContentsOfAllSources = function BasicSourceMapConsumer_hasContentsOfAllSources() {
      if (!this.sourcesContent) {
        return false;
      }
      return this.sourcesContent.length >= this._sources.size() && !this.sourcesContent.some(function (sc) {
        return sc == null;
      });
    };
    BasicSourceMapConsumer.prototype.sourceContentFor = function SourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
      if (!this.sourcesContent) {
        return null;
      }
      var index = this._findSourceIndex(aSource);
      if (index >= 0) {
        return this.sourcesContent[index];
      }
      var relativeSource = aSource;
      if (this.sourceRoot != null) {
        relativeSource = util.relative(this.sourceRoot, relativeSource);
      }
      var url;
      if (this.sourceRoot != null && (url = util.urlParse(this.sourceRoot))) {
        var fileUriAbsPath = relativeSource.replace(/^file:\/\//, '');
        if (url.scheme == 'file' && this._sources.has(fileUriAbsPath)) {
          return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)];
        }
        if ((!url.path || url.path == '/') && this._sources.has('/' + relativeSource)) {
          return this.sourcesContent[this._sources.indexOf('/' + relativeSource)];
        }
      }
      if (nullOnMissing) {
        return null;
      } else {
        throw new Error('"' + relativeSource + '" is not in the SourceMap.');
      }
    };
    BasicSourceMapConsumer.prototype.generatedPositionFor = function SourceMapConsumer_generatedPositionFor(aArgs) {
      var source = util.getArg(aArgs, 'source');
      source = this._findSourceIndex(source);
      if (source < 0) {
        return {
          line: null,
          column: null,
          lastColumn: null
        };
      }
      var needle = {
          source: source,
          originalLine: util.getArg(aArgs, 'line'),
          originalColumn: util.getArg(aArgs, 'column')
        };
      var index = this._findMapping(needle, this._originalMappings, 'originalLine', 'originalColumn', util.compareByOriginalPositions, util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND));
      if (index >= 0) {
        var mapping = this._originalMappings[index];
        if (mapping.source === needle.source) {
          return {
            line: util.getArg(mapping, 'generatedLine', null),
            column: util.getArg(mapping, 'generatedColumn', null),
            lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
          };
        }
      }
      return {
        line: null,
        column: null,
        lastColumn: null
      };
    };
    exports.BasicSourceMapConsumer = BasicSourceMapConsumer;
    function IndexedSourceMapConsumer(aSourceMap, aSourceMapURL) {
      var sourceMap = aSourceMap;
      if (typeof aSourceMap === 'string') {
        sourceMap = util.parseSourceMapInput(aSourceMap);
      }
      var version = util.getArg(sourceMap, 'version');
      var sections = util.getArg(sourceMap, 'sections');
      if (version != this._version) {
        throw new Error('Unsupported version: ' + version);
      }
      this._sources = new ArraySet;
      this._names = new ArraySet;
      var lastOffset = {
          line: -1,
          column: 0
        };
      this._sections = sections.map(function (s) {
        if (s.url) {
          throw new Error('Support for url field in sections not implemented.');
        }
        var offset = util.getArg(s, 'offset');
        var offsetLine = util.getArg(offset, 'line');
        var offsetColumn = util.getArg(offset, 'column');
        if (offsetLine < lastOffset.line || offsetLine === lastOffset.line && offsetColumn < lastOffset.column) {
          throw new Error('Section offsets must be ordered and non-overlapping.');
        }
        lastOffset = offset;
        return {
          generatedOffset: {
            generatedLine: offsetLine + 1,
            generatedColumn: offsetColumn + 1
          },
          consumer: new SourceMapConsumer(util.getArg(s, 'map'), aSourceMapURL)
        };
      });
    }
    IndexedSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);
    IndexedSourceMapConsumer.prototype.constructor = SourceMapConsumer;
    IndexedSourceMapConsumer.prototype._version = 3;
    Object.defineProperty(IndexedSourceMapConsumer.prototype, 'sources', {
      get: function () {
        var sources = [];
        for (var i = 0; i < this._sections.length; i++) {
          for (var j = 0; j < this._sections[i].consumer.sources.length; j++) {
            sources.push(this._sections[i].consumer.sources[j]);
          }
        }
        return sources;
      }
    });
    IndexedSourceMapConsumer.prototype.originalPositionFor = function IndexedSourceMapConsumer_originalPositionFor(aArgs) {
      var needle = {
          generatedLine: util.getArg(aArgs, 'line'),
          generatedColumn: util.getArg(aArgs, 'column')
        };
      var sectionIndex = binarySearch.search(needle, this._sections, function (needle, section) {
          var cmp = needle.generatedLine - section.generatedOffset.generatedLine;
          if (cmp) {
            return cmp;
          }
          return needle.generatedColumn - section.generatedOffset.generatedColumn;
        });
      var section = this._sections[sectionIndex];
      if (!section) {
        return {
          source: null,
          line: null,
          column: null,
          name: null
        };
      }
      return section.consumer.originalPositionFor({
        line: needle.generatedLine - (section.generatedOffset.generatedLine - 1),
        column: needle.generatedColumn - (section.generatedOffset.generatedLine === needle.generatedLine ? section.generatedOffset.generatedColumn - 1 : 0),
        bias: aArgs.bias
      });
    };
    IndexedSourceMapConsumer.prototype.hasContentsOfAllSources = function IndexedSourceMapConsumer_hasContentsOfAllSources() {
      return this._sections.every(function (s) {
        return s.consumer.hasContentsOfAllSources();
      });
    };
    IndexedSourceMapConsumer.prototype.sourceContentFor = function IndexedSourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
      for (var i = 0; i < this._sections.length; i++) {
        var section = this._sections[i];
        var content = section.consumer.sourceContentFor(aSource, true);
        if (content) {
          return content;
        }
      }
      if (nullOnMissing) {
        return null;
      } else {
        throw new Error('"' + aSource + '" is not in the SourceMap.');
      }
    };
    IndexedSourceMapConsumer.prototype.generatedPositionFor = function IndexedSourceMapConsumer_generatedPositionFor(aArgs) {
      for (var i = 0; i < this._sections.length; i++) {
        var section = this._sections[i];
        if (section.consumer._findSourceIndex(util.getArg(aArgs, 'source')) === -1) {
          continue;
        }
        var generatedPosition = section.consumer.generatedPositionFor(aArgs);
        if (generatedPosition) {
          var ret = {
              line: generatedPosition.line + (section.generatedOffset.generatedLine - 1),
              column: generatedPosition.column + (section.generatedOffset.generatedLine === generatedPosition.line ? section.generatedOffset.generatedColumn - 1 : 0)
            };
          return ret;
        }
      }
      return {
        line: null,
        column: null
      };
    };
    IndexedSourceMapConsumer.prototype._parseMappings = function IndexedSourceMapConsumer_parseMappings(aStr, aSourceRoot) {
      this.__generatedMappings = [];
      this.__originalMappings = [];
      for (var i = 0; i < this._sections.length; i++) {
        var section = this._sections[i];
        var sectionMappings = section.consumer._generatedMappings;
        for (var j = 0; j < sectionMappings.length; j++) {
          var mapping = sectionMappings[j];
          var source = section.consumer._sources.at(mapping.source);
          source = util.computeSourceURL(section.consumer.sourceRoot, source, this._sourceMapURL);
          this._sources.add(source);
          source = this._sources.indexOf(source);
          var name = null;
          if (mapping.name) {
            name = section.consumer._names.at(mapping.name);
            this._names.add(name);
            name = this._names.indexOf(name);
          }
          var adjustedMapping = {
              source: source,
              generatedLine: mapping.generatedLine + (section.generatedOffset.generatedLine - 1),
              generatedColumn: mapping.generatedColumn + (section.generatedOffset.generatedLine === mapping.generatedLine ? section.generatedOffset.generatedColumn - 1 : 0),
              originalLine: mapping.originalLine,
              originalColumn: mapping.originalColumn,
              name: name
            };
          this.__generatedMappings.push(adjustedMapping);
          if (typeof adjustedMapping.originalLine === 'number') {
            this.__originalMappings.push(adjustedMapping);
          }
        }
      }
      quickSort(this.__generatedMappings, util.compareByGeneratedPositionsDeflated);
      quickSort(this.__originalMappings, util.compareByOriginalPositions);
    };
    exports.IndexedSourceMapConsumer = IndexedSourceMapConsumer;
  });
  require.define('/node_modules/source-map/lib/quick-sort.js', function (module, exports, __dirname, __filename) {
    function swap(ary, x, y) {
      var temp = ary[x];
      ary[x] = ary[y];
      ary[y] = temp;
    }
    function randomIntInRange(low, high) {
      return Math.round(low + Math.random() * (high - low));
    }
    function doQuickSort(ary, comparator, p, r) {
      if (p < r) {
        var pivotIndex = randomIntInRange(p, r);
        var i = p - 1;
        swap(ary, pivotIndex, r);
        var pivot = ary[r];
        for (var j = p; j < r; j++) {
          if (comparator(ary[j], pivot) <= 0) {
            i += 1;
            swap(ary, i, j);
          }
        }
        swap(ary, i + 1, j);
        var q = i + 1;
        doQuickSort(ary, comparator, p, q - 1);
        doQuickSort(ary, comparator, q + 1, r);
      }
    }
    exports.quickSort = function (ary, comparator) {
      doQuickSort(ary, comparator, 0, ary.length - 1);
    };
  });
  require.define('/node_modules/source-map/lib/binary-search.js', function (module, exports, __dirname, __filename) {
    exports.GREATEST_LOWER_BOUND = 1;
    exports.LEAST_UPPER_BOUND = 2;
    function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare, aBias) {
      var mid = Math.floor((aHigh - aLow) / 2) + aLow;
      var cmp = aCompare(aNeedle, aHaystack[mid], true);
      if (cmp === 0) {
        return mid;
      } else if (cmp > 0) {
        if (aHigh - mid > 1) {
          return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare, aBias);
        }
        if (aBias == exports.LEAST_UPPER_BOUND) {
          return aHigh < aHaystack.length ? aHigh : -1;
        } else {
          return mid;
        }
      } else {
        if (mid - aLow > 1) {
          return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare, aBias);
        }
        if (aBias == exports.LEAST_UPPER_BOUND) {
          return mid;
        } else {
          return aLow < 0 ? -1 : aLow;
        }
      }
    }
    exports.search = function search(aNeedle, aHaystack, aCompare, aBias) {
      if (aHaystack.length === 0) {
        return -1;
      }
      var index = recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare, aBias || exports.GREATEST_LOWER_BOUND);
      if (index < 0) {
        return -1;
      }
      while (index - 1 >= 0) {
        if (aCompare(aHaystack[index], aHaystack[index - 1], true) !== 0) {
          break;
        }
        --index;
      }
      return index;
    };
  });
  require.define('/node_modules/esutils/lib/utils.js', function (module, exports, __dirname, __filename) {
    (function () {
      'use strict';
      exports.ast = require('/node_modules/esutils/lib/ast.js', module);
      exports.code = require('/node_modules/esutils/lib/code.js', module);
      exports.keyword = require('/node_modules/esutils/lib/keyword.js', module);
    }());
  });
  require.define('/node_modules/esutils/lib/keyword.js', function (module, exports, __dirname, __filename) {
    (function () {
      'use strict';
      var code = require('/node_modules/esutils/lib/code.js', module);
      function isStrictModeReservedWordES6(id) {
        switch (id) {
        case 'implements':
        case 'interface':
        case 'package':
        case 'private':
        case 'protected':
        case 'public':
        case 'static':
        case 'let':
          return true;
        default:
          return false;
        }
      }
      function isKeywordES5(id, strict) {
        if (!strict && id === 'yield') {
          return false;
        }
        return isKeywordES6(id, strict);
      }
      function isKeywordES6(id, strict) {
        if (strict && isStrictModeReservedWordES6(id)) {
          return true;
        }
        switch (id.length) {
        case 2:
          return id === 'if' || id === 'in' || id === 'do';
        case 3:
          return id === 'var' || id === 'for' || id === 'new' || id === 'try';
        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;
        }
      }
      function isReservedWordES5(id, strict) {
        return id === 'null' || id === 'true' || id === 'false' || isKeywordES5(id, strict);
      }
      function isReservedWordES6(id, strict) {
        return id === 'null' || id === 'true' || id === 'false' || isKeywordES6(id, strict);
      }
      function isRestrictedWord(id) {
        return id === 'eval' || id === 'arguments';
      }
      function isIdentifierNameES5(id) {
        var i, iz, ch;
        if (id.length === 0) {
          return false;
        }
        ch = id.charCodeAt(0);
        if (!code.isIdentifierStartES5(ch)) {
          return false;
        }
        for (i = 1, iz = id.length; i < iz; ++i) {
          ch = id.charCodeAt(i);
          if (!code.isIdentifierPartES5(ch)) {
            return false;
          }
        }
        return true;
      }
      function decodeUtf16(lead, trail) {
        return (lead - 55296) * 1024 + (trail - 56320) + 65536;
      }
      function isIdentifierNameES6(id) {
        var i, iz, ch, lowCh, check;
        if (id.length === 0) {
          return false;
        }
        check = code.isIdentifierStartES6;
        for (i = 0, iz = id.length; i < iz; ++i) {
          ch = id.charCodeAt(i);
          if (55296 <= ch && ch <= 56319) {
            ++i;
            if (i >= iz) {
              return false;
            }
            lowCh = id.charCodeAt(i);
            if (!(56320 <= lowCh && lowCh <= 57343)) {
              return false;
            }
            ch = decodeUtf16(ch, lowCh);
          }
          if (!check(ch)) {
            return false;
          }
          check = code.isIdentifierPartES6;
        }
        return true;
      }
      function isIdentifierES5(id, strict) {
        return isIdentifierNameES5(id) && !isReservedWordES5(id, strict);
      }
      function isIdentifierES6(id, strict) {
        return isIdentifierNameES6(id) && !isReservedWordES6(id, strict);
      }
      module.exports = {
        isKeywordES5: isKeywordES5,
        isKeywordES6: isKeywordES6,
        isReservedWordES5: isReservedWordES5,
        isReservedWordES6: isReservedWordES6,
        isRestrictedWord: isRestrictedWord,
        isIdentifierNameES5: isIdentifierNameES5,
        isIdentifierNameES6: isIdentifierNameES6,
        isIdentifierES5: isIdentifierES5,
        isIdentifierES6: isIdentifierES6
      };
    }());
  });
  require.define('/node_modules/esutils/lib/code.js', function (module, exports, __dirname, __filename) {
    (function () {
      'use strict';
      var ES6Regex, ES5Regex, NON_ASCII_WHITESPACES, IDENTIFIER_START, IDENTIFIER_PART, ch;
      ES5Regex = {
        NonAsciiIdentifierStart: /[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0-\u08B4\u08B6-\u08BD\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0AF9\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D\u0C58-\u0C5A\u0C60\u0C61\u0C80\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D54-\u0D56\u0D5F-\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u1884\u1887-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1C80-\u1C88\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FD5\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA69D\uA6A0-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA7AE\uA7B0-\uA7B7\uA7F7-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA8FD\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uA9E0-\uA9E4\uA9E6-\uA9EF\uA9FA-\uA9FE\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA7E-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB65\uAB70-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]/,
        NonAsciiIdentifierPart: /[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0300-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u0483-\u0487\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u05D0-\u05EA\u05F0-\u05F2\u0610-\u061A\u0620-\u0669\u066E-\u06D3\u06D5-\u06DC\u06DF-\u06E8\u06EA-\u06FC\u06FF\u0710-\u074A\u074D-\u07B1\u07C0-\u07F5\u07FA\u0800-\u082D\u0840-\u085B\u08A0-\u08B4\u08B6-\u08BD\u08D4-\u08E1\u08E3-\u0963\u0966-\u096F\u0971-\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-\u09C4\u09C7\u09C8\u09CB-\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09E6-\u09F1\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A59-\u0A5C\u0A5E\u0A66-\u0A75\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABC-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AEF\u0AF9\u0B01-\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3C-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B66-\u0B6F\u0B71\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD0\u0BD7\u0BE6-\u0BEF\u0C00-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C58-\u0C5A\u0C60-\u0C63\u0C66-\u0C6F\u0C80-\u0C83\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBC-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CDE\u0CE0-\u0CE3\u0CE6-\u0CEF\u0CF1\u0CF2\u0D01-\u0D03\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D-\u0D44\u0D46-\u0D48\u0D4A-\u0D4E\u0D54-\u0D57\u0D5F-\u0D63\u0D66-\u0D6F\u0D7A-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DE6-\u0DEF\u0DF2\u0DF3\u0E01-\u0E3A\u0E40-\u0E4E\u0E50-\u0E59\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB9\u0EBB-\u0EBD\u0EC0-\u0EC4\u0EC6\u0EC8-\u0ECD\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00\u0F18\u0F19\u0F20-\u0F29\u0F35\u0F37\u0F39\u0F3E-\u0F47\u0F49-\u0F6C\u0F71-\u0F84\u0F86-\u0F97\u0F99-\u0FBC\u0FC6\u1000-\u1049\u1050-\u109D\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u135D-\u135F\u1380-\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-\u17D3\u17D7\u17DC\u17DD\u17E0-\u17E9\u180B-\u180D\u1810-\u1819\u1820-\u1877\u1880-\u18AA\u18B0-\u18F5\u1900-\u191E\u1920-\u192B\u1930-\u193B\u1946-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-\u19D9\u1A00-\u1A1B\u1A20-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-\u1A99\u1AA7\u1AB0-\u1ABD\u1B00-\u1B4B\u1B50-\u1B59\u1B6B-\u1B73\u1B80-\u1BF3\u1C00-\u1C37\u1C40-\u1C49\u1C4D-\u1C7D\u1C80-\u1C88\u1CD0-\u1CD2\u1CD4-\u1CF6\u1CF8\u1CF9\u1D00-\u1DF5\u1DFB-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u200C\u200D\u203F\u2040\u2054\u2071\u207F\u2090-\u209C\u20D0-\u20DC\u20E1\u20E5-\u20F0\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D7F-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2DE0-\u2DFF\u2E2F\u3005-\u3007\u3021-\u302F\u3031-\u3035\u3038-\u303C\u3041-\u3096\u3099\u309A\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FD5\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA62B\uA640-\uA66F\uA674-\uA67D\uA67F-\uA6F1\uA717-\uA71F\uA722-\uA788\uA78B-\uA7AE\uA7B0-\uA7B7\uA7F7-\uA827\uA840-\uA873\uA880-\uA8C5\uA8D0-\uA8D9\uA8E0-\uA8F7\uA8FB\uA8FD\uA900-\uA92D\uA930-\uA953\uA960-\uA97C\uA980-\uA9C0\uA9CF-\uA9D9\uA9E0-\uA9FE\uAA00-\uAA36\uAA40-\uAA4D\uAA50-\uAA59\uAA60-\uAA76\uAA7A-\uAAC2\uAADB-\uAADD\uAAE0-\uAAEF\uAAF2-\uAAF6\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB65\uAB70-\uABEA\uABEC\uABED\uABF0-\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE00-\uFE0F\uFE20-\uFE2F\uFE33\uFE34\uFE4D-\uFE4F\uFE70-\uFE74\uFE76-\uFEFC\uFF10-\uFF19\uFF21-\uFF3A\uFF3F\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]/
      };
      ES6Regex = {
        NonAsciiIdentifierStart: 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      };
      function isDecimalDigit(ch) {
        return 48 <= ch && ch <= 57;
      }
      function isHexDigit(ch) {
        return 48 <= ch && ch <= 57 || 97 <= ch && ch <= 102 || 65 <= ch && ch <= 70;
      }
      function isOctalDigit(ch) {
        return ch >= 48 && ch <= 55;
      }
      NON_ASCII_WHITESPACES = [
        5760,
        8192,
        8193,
        8194,
        8195,
        8196,
        8197,
        8198,
        8199,
        8200,
        8201,
        8202,
        8239,
        8287,
        12288,
        65279
      ];
      function isWhiteSpace(ch) {
        return ch === 32 || ch === 9 || ch === 11 || ch === 12 || ch === 160 || ch >= 5760 && NON_ASCII_WHITESPACES.indexOf(ch) >= 0;
      }
      function isLineTerminator(ch) {
        return ch === 10 || ch === 13 || ch === 8232 || ch === 8233;
      }
      function fromCodePoint(cp) {
        if (cp <= 65535) {
          return String.fromCharCode(cp);
        }
        var cu1 = String.fromCharCode(Math.floor((cp - 65536) / 1024) + 55296);
        var cu2 = String.fromCharCode((cp - 65536) % 1024 + 56320);
        return cu1 + cu2;
      }
      IDENTIFIER_START = new Array(128);
      for (ch = 0; ch < 128; ++ch) {
        IDENTIFIER_START[ch] = ch >= 97 && ch <= 122 || ch >= 65 && ch <= 90 || ch === 36 || ch === 95;
      }
      IDENTIFIER_PART = new Array(128);
      for (ch = 0; ch < 128; ++ch) {
        IDENTIFIER_PART[ch] = ch >= 97 && ch <= 122 || ch >= 65 && ch <= 90 || ch >= 48 && ch <= 57 || ch === 36 || ch === 95;
      }
      function isIdentifierStartES5(ch) {
        return ch < 128 ? IDENTIFIER_START[ch] : ES5Regex.NonAsciiIdentifierStart.test(fromCodePoint(ch));
      }
      function isIdentifierPartES5(ch) {
        return ch < 128 ? IDENTIFIER_PART[ch] : ES5Regex.NonAsciiIdentifierPart.test(fromCodePoint(ch));
      }
      function isIdentifierStartES6(ch) {
        return ch < 128 ? IDENTIFIER_START[ch] : ES6Regex.NonAsciiIdentifierStart.test(fromCodePoint(ch));
      }
      function isIdentifierPartES6(ch) {
        return ch < 128 ? IDENTIFIER_PART[ch] : ES6Regex.NonAsciiIdentifierPart.test(fromCodePoint(ch));
      }
      module.exports = {
        isDecimalDigit: isDecimalDigit,
        isHexDigit: isHexDigit,
        isOctalDigit: isOctalDigit,
        isWhiteSpace: isWhiteSpace,
        isLineTerminator: isLineTerminator,
        isIdentifierStartES5: isIdentifierStartES5,
        isIdentifierPartES5: isIdentifierPartES5,
        isIdentifierStartES6: isIdentifierStartES6,
        isIdentifierPartES6: isIdentifierPartES6
      };
    }());
  });
  require.define('/node_modules/esutils/lib/ast.js', function (module, exports, __dirname, __filename) {
    (function () {
      'use strict';
      function isExpression(node) {
        if (node == null) {
          return false;
        }
        switch (node.type) {
        case 'ArrayExpression':
        case 'AssignmentExpression':
        case 'BinaryExpression':
        case 'CallExpression':
        case 'ConditionalExpression':
        case 'FunctionExpression':
        case 'Identifier':
        case 'Literal':
        case 'LogicalExpression':
        case 'MemberExpression':
        case 'NewExpression':
        case 'ObjectExpression':
        case 'SequenceExpression':
        case 'ThisExpression':
        case 'UnaryExpression':
        case 'UpdateExpression':
          return true;
        }
        return false;
      }
      function isIterationStatement(node) {
        if (node == null) {
          return false;
        }
        switch (node.type) {
        case 'DoWhileStatement':
        case 'ForInStatement':
        case 'ForStatement':
        case 'WhileStatement':
          return true;
        }
        return false;
      }
      function isStatement(node) {
        if (node == null) {
          return false;
        }
        switch (node.type) {
        case 'BlockStatement':
        case 'BreakStatement':
        case 'ContinueStatement':
        case 'DebuggerStatement':
        case 'DoWhileStatement':
        case 'EmptyStatement':
        case 'ExpressionStatement':
        case 'ForInStatement':
        case 'ForStatement':
        case 'IfStatement':
        case 'LabeledStatement':
        case 'ReturnStatement':
        case 'SwitchStatement':
        case 'ThrowStatement':
        case 'TryStatement':
        case 'VariableDeclaration':
        case 'WhileStatement':
        case 'WithStatement':
          return true;
        }
        return false;
      }
      function isSourceElement(node) {
        return isStatement(node) || node != null && node.type === 'FunctionDeclaration';
      }
      function trailingStatement(node) {
        switch (node.type) {
        case 'IfStatement':
          if (node.alternate != null) {
            return node.alternate;
          }
          return node.consequent;
        case 'LabeledStatement':
        case 'ForStatement':
        case 'ForInStatement':
        case 'WhileStatement':
        case 'WithStatement':
          return node.body;
        }
        return null;
      }
      function isProblematicIfStatement(node) {
        var current;
        if (node.type !== 'IfStatement') {
          return false;
        }
        if (node.alternate == null) {
          return false;
        }
        current = node.consequent;
        do {
          if (current.type === 'IfStatement') {
            if (current.alternate == null) {
              return true;
            }
          }
          current = trailingStatement(current);
        } while (current);
        return false;
      }
      module.exports = {
        isExpression: isExpression,
        isStatement: isStatement,
        isIterationStatement: isIterationStatement,
        isSourceElement: isSourceElement,
        isProblematicIfStatement: isProblematicIfStatement,
        trailingStatement: trailingStatement
      };
    }());
  });
  require.define('/node_modules/estraverse/estraverse.js', function (module, exports, __dirname, __filename) {
    (function clone(exports) {
      'use strict';
      var Syntax, isArray, VisitorOption, VisitorKeys, objectCreate, objectKeys, BREAK, SKIP, REMOVE;
      function ignoreJSHintError() {
      }
      isArray = Array.isArray;
      if (!isArray) {
        isArray = function isArray(array) {
          return Object.prototype.toString.call(array) === '[object Array]';
        };
      }
      function deepCopy(obj) {
        var ret = {}, key, val;
        for (key in obj) {
          if (obj.hasOwnProperty(key)) {
            val = obj[key];
            if (typeof val === 'object' && val !== null) {
              ret[key] = deepCopy(val);
            } else {
              ret[key] = val;
            }
          }
        }
        return ret;
      }
      function shallowCopy(obj) {
        var ret = {}, key;
        for (key in obj) {
          if (obj.hasOwnProperty(key)) {
            ret[key] = obj[key];
          }
        }
        return ret;
      }
      ignoreJSHintError(shallowCopy);
      function upperBound(array, func) {
        var diff, len, i, current;
        len = array.length;
        i = 0;
        while (len) {
          diff = len >>> 1;
          current = i + diff;
          if (func(array[current])) {
            len = diff;
          } else {
            i = current + 1;
            len -= diff + 1;
          }
        }
        return i;
      }
      function lowerBound(array, func) {
        var diff, len, i, current;
        len = array.length;
        i = 0;
        while (len) {
          diff = len >>> 1;
          current = i + diff;
          if (func(array[current])) {
            i = current + 1;
            len -= diff + 1;
          } else {
            len = diff;
          }
        }
        return i;
      }
      ignoreJSHintError(lowerBound);
      objectCreate = Object.create || function () {
        function F() {
        }
        return function (o) {
          F.prototype = o;
          return new F;
        };
      }();
      objectKeys = Object.keys || function (o) {
        var keys = [], key;
        for (key in o) {
          keys.push(key);
        }
        return keys;
      };
      function extend(to, from) {
        var keys = objectKeys(from), key, i, len;
        for (i = 0, len = keys.length; i < len; i += 1) {
          key = keys[i];
          to[key] = from[key];
        }
        return to;
      }
      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',
        ComprehensionBlock: 'ComprehensionBlock',
        ComprehensionExpression: 'ComprehensionExpression',
        ConditionalExpression: 'ConditionalExpression',
        ContinueStatement: 'ContinueStatement',
        DebuggerStatement: 'DebuggerStatement',
        DirectiveStatement: 'DirectiveStatement',
        DoWhileStatement: 'DoWhileStatement',
        EmptyStatement: 'EmptyStatement',
        ExportAllDeclaration: 'ExportAllDeclaration',
        ExportDefaultDeclaration: 'ExportDefaultDeclaration',
        ExportNamedDeclaration: 'ExportNamedDeclaration',
        ExportSpecifier: 'ExportSpecifier',
        ExpressionStatement: 'ExpressionStatement',
        ForStatement: 'ForStatement',
        ForInStatement: 'ForInStatement',
        ForOfStatement: 'ForOfStatement',
        FunctionDeclaration: 'FunctionDeclaration',
        FunctionExpression: 'FunctionExpression',
        GeneratorExpression: 'GeneratorExpression',
        Identifier: 'Identifier',
        IfStatement: 'IfStatement',
        ImportDeclaration: 'ImportDeclaration',
        ImportDefaultSpecifier: 'ImportDefaultSpecifier',
        ImportNamespaceSpecifier: 'ImportNamespaceSpecifier',
        ImportSpecifier: 'ImportSpecifier',
        Literal: 'Literal',
        LabeledStatement: 'LabeledStatement',
        LogicalExpression: 'LogicalExpression',
        MemberExpression: 'MemberExpression',
        MetaProperty: 'MetaProperty',
        MethodDefinition: 'MethodDefinition',
        ModuleSpecifier: 'ModuleSpecifier',
        NewExpression: 'NewExpression',
        ObjectExpression: 'ObjectExpression',
        ObjectPattern: 'ObjectPattern',
        Program: 'Program',
        Property: 'Property',
        RestElement: 'RestElement',
        ReturnStatement: 'ReturnStatement',
        SequenceExpression: 'SequenceExpression',
        SpreadElement: 'SpreadElement',
        Super: 'Super',
        SwitchStatement: 'SwitchStatement',
        SwitchCase: 'SwitchCase',
        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'
      };
      VisitorKeys = {
        AssignmentExpression: [
          'left',
          'right'
        ],
        AssignmentPattern: [
          'left',
          'right'
        ],
        ArrayExpression: ['elements'],
        ArrayPattern: ['elements'],
        ArrowFunctionExpression: [
          'params',
          'body'
        ],
        AwaitExpression: ['argument'],
        BlockStatement: ['body'],
        BinaryExpression: [
          'left',
          'right'
        ],
        BreakStatement: ['label'],
        CallExpression: [
          'callee',
          'arguments'
        ],
        CatchClause: [
          'param',
          'body'
        ],
        ClassBody: ['body'],
        ClassDeclaration: [
          'id',
          'superClass',
          'body'
        ],
        ClassExpression: [
          'id',
          'superClass',
          'body'
        ],
        ComprehensionBlock: [
          'left',
          'right'
        ],
        ComprehensionExpression: [
          'blocks',
          'filter',
          'body'
        ],
        ConditionalExpression: [
          'test',
          'consequent',
          'alternate'
        ],
        ContinueStatement: ['label'],
        DebuggerStatement: [],
        DirectiveStatement: [],
        DoWhileStatement: [
          'body',
          'test'
        ],
        EmptyStatement: [],
        ExportAllDeclaration: ['source'],
        ExportDefaultDeclaration: ['declaration'],
        ExportNamedDeclaration: [
          'declaration',
          'specifiers',
          'source'
        ],
        ExportSpecifier: [
          'exported',
          'local'
        ],
        ExpressionStatement: ['expression'],
        ForStatement: [
          'init',
          'test',
          'update',
          'body'
        ],
        ForInStatement: [
          'left',
          'right',
          'body'
        ],
        ForOfStatement: [
          'left',
          'right',
          'body'
        ],
        FunctionDeclaration: [
          'id',
          'params',
          'body'
        ],
        FunctionExpression: [
          'id',
          'params',
          'body'
        ],
        GeneratorExpression: [
          'blocks',
          'filter',
          'body'
        ],
        Identifier: [],
        IfStatement: [
          'test',
          'consequent',
          'alternate'
        ],
        ImportDeclaration: [
          'specifiers',
          'source'
        ],
        ImportDefaultSpecifier: ['local'],
        ImportNamespaceSpecifier: ['local'],
        ImportSpecifier: [
          'imported',
          'local'
        ],
        Literal: [],
        LabeledStatement: [
          'label',
          'body'
        ],
        LogicalExpression: [
          'left',
          'right'
        ],
        MemberExpression: [
          'object',
          'property'
        ],
        MetaProperty: [
          'meta',
          'property'
        ],
        MethodDefinition: [
          'key',
          'value'
        ],
        ModuleSpecifier: [],
        NewExpression: [
          'callee',
          'arguments'
        ],
        ObjectExpression: ['properties'],
        ObjectPattern: ['properties'],
        Program: ['body'],
        Property: [
          'key',
          'value'
        ],
        RestElement: ['argument'],
        ReturnStatement: ['argument'],
        SequenceExpression: ['expressions'],
        SpreadElement: ['argument'],
        Super: [],
        SwitchStatement: [
          'discriminant',
          'cases'
        ],
        SwitchCase: [
          'test',
          'consequent'
        ],
        TaggedTemplateExpression: [
          'tag',
          'quasi'
        ],
        TemplateElement: [],
        TemplateLiteral: [
          'quasis',
          'expressions'
        ],
        ThisExpression: [],
        ThrowStatement: ['argument'],
        TryStatement: [
          'block',
          'handler',
          'finalizer'
        ],
        UnaryExpression: ['argument'],
        UpdateExpression: ['argument'],
        VariableDeclaration: ['declarations'],
        VariableDeclarator: [
          'id',
          'init'
        ],
        WhileStatement: [
          'test',
          'body'
        ],
        WithStatement: [
          'object',
          'body'
        ],
        YieldExpression: ['argument']
      };
      BREAK = {};
      SKIP = {};
      REMOVE = {};
      VisitorOption = {
        Break: BREAK,
        Skip: SKIP,
        Remove: REMOVE
      };
      function Reference(parent, key) {
        this.parent = parent;
        this.key = key;
      }
      Reference.prototype.replace = function replace(node) {
        this.parent[this.key] = node;
      };
      Reference.prototype.remove = function remove() {
        if (isArray(this.parent)) {
          this.parent.splice(this.key, 1);
          return true;
        } else {
          this.replace(null);
          return false;
        }
      };
      function Element(node, path, wrap, ref) {
        this.node = node;
        this.path = path;
        this.wrap = wrap;
        this.ref = ref;
      }
      function Controller() {
      }
      Controller.prototype.path = function path() {
        var i, iz, j, jz, result, element;
        function addToPath(result, path) {
          if (isArray(path)) {
            for (j = 0, jz = path.length; j < jz; ++j) {
              result.push(path[j]);
            }
          } else {
            result.push(path);
          }
        }
        if (!this.__current.path) {
          return null;
        }
        result = [];
        for (i = 2, iz = this.__leavelist.length; i < iz; ++i) {
          element = this.__leavelist[i];
          addToPath(result, element.path);
        }
        addToPath(result, this.__current.path);
        return result;
      };
      Controller.prototype.type = function () {
        var node = this.current();
        return node.type || this.__current.wrap;
      };
      Controller.prototype.parents = function parents() {
        var i, iz, result;
        result = [];
        for (i = 1, iz = this.__leavelist.length; i < iz; ++i) {
          result.push(this.__leavelist[i].node);
        }
        return result;
      };
      Controller.prototype.current = function current() {
        return this.__current.node;
      };
      Controller.prototype.__execute = function __execute(callback, element) {
        var previous, result;
        result = undefined;
        previous = this.__current;
        this.__current = element;
        this.__state = null;
        if (callback) {
          result = callback.call(this, element.node, this.__leavelist[this.__leavelist.length - 1].node);
        }
        this.__current = previous;
        return result;
      };
      Controller.prototype.notify = function notify(flag) {
        this.__state = flag;
      };
      Controller.prototype.skip = function () {
        this.notify(SKIP);
      };
      Controller.prototype['break'] = function () {
        this.notify(BREAK);
      };
      Controller.prototype.remove = function () {
        this.notify(REMOVE);
      };
      Controller.prototype.__initialize = function (root, visitor) {
        this.visitor = visitor;
        this.root = root;
        this.__worklist = [];
        this.__leavelist = [];
        this.__current = null;
        this.__state = null;
        this.__fallback = null;
        if (visitor.fallback === 'iteration') {
          this.__fallback = objectKeys;
        } else if (typeof visitor.fallback === 'function') {
          this.__fallback = visitor.fallback;
        }
        this.__keys = VisitorKeys;
        if (visitor.keys) {
          this.__keys = extend(objectCreate(this.__keys), visitor.keys);
        }
      };
      function isNode(node) {
        if (node == null) {
          return false;
        }
        return typeof node === 'object' && typeof node.type === 'string';
      }
      function isProperty(nodeType, key) {
        return (nodeType === Syntax.ObjectExpression || nodeType === Syntax.ObjectPattern) && 'properties' === key;
      }
      Controller.prototype.traverse = function traverse(root, visitor) {
        var worklist, leavelist, element, node, nodeType, ret, key, current, current2, candidates, candidate, sentinel;
        this.__initialize(root, visitor);
        sentinel = {};
        worklist = this.__worklist;
        leavelist = this.__leavelist;
        worklist.push(new Element(root, null, null, null));
        leavelist.push(new Element(null, null, null, null));
        while (worklist.length) {
          element = worklist.pop();
          if (element === sentinel) {
            element = leavelist.pop();
            ret = this.__execute(visitor.leave, element);
            if (this.__state === BREAK || ret === BREAK) {
              return;
            }
            continue;
          }
          if (element.node) {
            ret = this.__execute(visitor.enter, element);
            if (this.__state === BREAK || ret === BREAK) {
              return;
            }
            worklist.push(sentinel);
            leavelist.push(element);
            if (this.__state === SKIP || ret === SKIP) {
              continue;
            }
            node = element.node;
            nodeType = node.type || element.wrap;
            candidates = this.__keys[nodeType];
            if (!candidates) {
              if (this.__fallback) {
                candidates = this.__fallback(node);
              } else {
                throw new Error('Unknown node type ' + nodeType + '.');
              }
            }
            current = candidates.length;
            while ((current -= 1) >= 0) {
              key = candidates[current];
              candidate = node[key];
              if (!candidate) {
                continue;
              }
              if (isArray(candidate)) {
                current2 = candidate.length;
                while ((current2 -= 1) >= 0) {
                  if (!candidate[current2]) {
                    continue;
                  }
                  if (isProperty(nodeType, candidates[current])) {
                    element = new Element(candidate[current2], [
                      key,
                      current2
                    ], 'Property', null);
                  } else if (isNode(candidate[current2])) {
                    element = new Element(candidate[current2], [
                      key,
                      current2
                    ], null, null);
                  } else {
                    continue;
                  }
                  worklist.push(element);
                }
              } else if (isNode(candidate)) {
                worklist.push(new Element(candidate, key, null, null));
              }
            }
          }
        }
      };
      Controller.prototype.replace = function replace(root, visitor) {
        var worklist, leavelist, node, nodeType, target, element, current, current2, candidates, candidate, sentinel, outer, key;
        function removeElem(element) {
          var i, key, nextElem, parent;
          if (element.ref.remove()) {
            key = element.ref.key;
            parent = element.ref.parent;
            i = worklist.length;
            while (i--) {
              nextElem = worklist[i];
              if (nextElem.ref && nextElem.ref.parent === parent) {
                if (nextElem.ref.key < key) {
                  break;
                }
                --nextElem.ref.key;
              }
            }
          }
        }
        this.__initialize(root, visitor);
        sentinel = {};
        worklist = this.__worklist;
        leavelist = this.__leavelist;
        outer = { root: root };
        element = new Element(root, null, null, new Reference(outer, 'root'));
        worklist.push(element);
        leavelist.push(element);
        while (worklist.length) {
          element = worklist.pop();
          if (element === sentinel) {
            element = leavelist.pop();
            target = this.__execute(visitor.leave, element);
            if (target !== undefined && target !== BREAK && target !== SKIP && target !== REMOVE) {
              element.ref.replace(target);
            }
            if (this.__state === REMOVE || target === REMOVE) {
              removeElem(element);
            }
            if (this.__state === BREAK || target === BREAK) {
              return outer.root;
            }
            continue;
          }
          target = this.__execute(visitor.enter, element);
          if (target !== undefined && target !== BREAK && target !== SKIP && target !== REMOVE) {
            element.ref.replace(target);
            element.node = target;
          }
          if (this.__state === REMOVE || target === REMOVE) {
            removeElem(element);
            element.node = null;
          }
          if (this.__state === BREAK || target === BREAK) {
            return outer.root;
          }
          node = element.node;
          if (!node) {
            continue;
          }
          worklist.push(sentinel);
          leavelist.push(element);
          if (this.__state === SKIP || target === SKIP) {
            continue;
          }
          nodeType = node.type || element.wrap;
          candidates = this.__keys[nodeType];
          if (!candidates) {
            if (this.__fallback) {
              candidates = this.__fallback(node);
            } else {
              throw new Error('Unknown node type ' + nodeType + '.');
            }
          }
          current = candidates.length;
          while ((current -= 1) >= 0) {
            key = candidates[current];
            candidate = node[key];
            if (!candidate) {
              continue;
            }
            if (isArray(candidate)) {
              current2 = candidate.length;
              while ((current2 -= 1) >= 0) {
                if (!candidate[current2]) {
                  continue;
                }
                if (isProperty(nodeType, candidates[current])) {
                  element = new Element(candidate[current2], [
                    key,
                    current2
                  ], 'Property', new Reference(candidate, current2));
                } else if (isNode(candidate[current2])) {
                  element = new Element(candidate[current2], [
                    key,
                    current2
                  ], null, new Reference(candidate, current2));
                } else {
                  continue;
                }
                worklist.push(element);
              }
            } else if (isNode(candidate)) {
              worklist.push(new Element(candidate, key, null, new Reference(node, key)));
            }
          }
        }
        return outer.root;
      };
      function traverse(root, visitor) {
        var controller = new Controller;
        return controller.traverse(root, visitor);
      }
      function replace(root, visitor) {
        var controller = new Controller;
        return controller.replace(root, visitor);
      }
      function extendCommentRange(comment, tokens) {
        var target;
        target = upperBound(tokens, function search(token) {
          return token.range[0] > comment.range[0];
        });
        comment.extendedRange = [
          comment.range[0],
          comment.range[1]
        ];
        if (target !== tokens.length) {
          comment.extendedRange[1] = tokens[target].range[0];
        }
        target -= 1;
        if (target >= 0) {
          comment.extendedRange[0] = tokens[target].range[1];
        }
        return comment;
      }
      function attachComments(tree, providedComments, tokens) {
        var comments = [], comment, len, i, cursor;
        if (!tree.range) {
          throw new Error('attachComments needs range information');
        }
        if (!tokens.length) {
          if (providedComments.length) {
            for (i = 0, len = providedComments.length; i < len; i += 1) {
              comment = deepCopy(providedComments[i]);
              comment.extendedRange = [
                0,
                tree.range[0]
              ];
              comments.push(comment);
            }
            tree.leadingComments = comments;
          }
          return tree;
        }
        for (i = 0, len = providedComments.length; i < len; i += 1) {
          comments.push(extendCommentRange(deepCopy(providedComments[i]), tokens));
        }
        cursor = 0;
        traverse(tree, {
          enter: function (node) {
            var comment;
            while (cursor < comments.length) {
              comment = comments[cursor];
              if (comment.extendedRange[1] > node.range[0]) {
                break;
              }
              if (comment.extendedRange[1] === node.range[0]) {
                if (!node.leadingComments) {
                  node.leadingComments = [];
                }
                node.leadingComments.push(comment);
                comments.splice(cursor, 1);
              } else {
                cursor += 1;
              }
            }
            if (cursor === comments.length) {
              return VisitorOption.Break;
            }
            if (comments[cursor].extendedRange[0] > node.range[1]) {
              return VisitorOption.Skip;
            }
          }
        });
        cursor = 0;
        traverse(tree, {
          leave: function (node) {
            var comment;
            while (cursor < comments.length) {
              comment = comments[cursor];
              if (node.range[1] < comment.extendedRange[0]) {
                break;
              }
              if (node.range[1] === comment.extendedRange[0]) {
                if (!node.trailingComments) {
                  node.trailingComments = [];
                }
                node.trailingComments.push(comment);
                comments.splice(cursor, 1);
              } else {
                cursor += 1;
              }
            }
            if (cursor === comments.length) {
              return VisitorOption.Break;
            }
            if (comments[cursor].extendedRange[0] > node.range[1]) {
              return VisitorOption.Skip;
            }
          }
        });
        return tree;
      }
      exports.version = require('/node_modules/estraverse/package.json', module).version;
      exports.Syntax = Syntax;
      exports.traverse = traverse;
      exports.replace = replace;
      exports.attachComments = attachComments;
      exports.VisitorKeys = VisitorKeys;
      exports.VisitorOption = VisitorOption;
      exports.Controller = Controller;
      exports.cloneEnvironment = function () {
        return clone({});
      };
      return exports;
    }(exports));
  });
  require.define('/node_modules/estraverse/package.json', function (module, exports, __dirname, __filename) {
    module.exports = {
      '_from': 'estraverse@^4.2.0',
      '_id': 'estraverse@4.2.0',
      '_inBundle': false,
      '_integrity': 'sha1-De4/7TH81GlhjOc0IJn8GvoL2xM=',
      '_location': '/estraverse',
      '_phantomChildren': {},
      '_requested': {
        'type': 'range',
        'registry': true,
        'raw': 'estraverse@^4.2.0',
        'name': 'estraverse',
        'escapedName': 'estraverse',
        'rawSpec': '^4.2.0',
        'saveSpec': null,
        'fetchSpec': '^4.2.0'
      },
      '_requiredBy': [
        '/',
        '/eslint',
        '/eslint/escope',
        '/esquery',
        '/esrecurse'
      ],
      '_resolved': 'https://registry.npmjs.org/estraverse/-/estraverse-4.2.0.tgz',
      '_shasum': '0dee3fed31fcd469618ce7342099fc1afa0bdb13',
      '_spec': 'estraverse@^4.2.0',
      '_where': '/root/eb20190729/newthird/escodegen',
      'bugs': { 'url': 'https://github.com/estools/estraverse/issues' },
      'bundleDependencies': false,
      'deprecated': false,
      'description': 'ECMAScript JS AST traversal functions',
      'devDependencies': {
        'babel-preset-es2015': '^6.3.13',
        'babel-register': '^6.3.13',
        'chai': '^2.1.1',
        'espree': '^1.11.0',
        'gulp': '^3.8.10',
        'gulp-bump': '^0.2.2',
        'gulp-filter': '^2.0.0',
        'gulp-git': '^1.0.1',
        'gulp-tag-version': '^1.2.1',
        'jshint': '^2.5.6',
        'mocha': '^2.1.0'
      },
      'engines': { 'node': '>=0.10.0' },
      'homepage': 'https://github.com/estools/estraverse',
      'license': 'BSD-2-Clause',
      'main': 'estraverse.js',
      'maintainers': [{
          'name': 'Yusuke Suzuki',
          'email': 'utatane.tea@gmail.com',
          'url': 'http://github.com/Constellation'
        }],
      'name': 'estraverse',
      'repository': {
        'type': 'git',
        'url': 'git+ssh://git@github.com/estools/estraverse.git'
      },
      'scripts': {
        'lint': 'jshint estraverse.js',
        'test': 'npm run-script lint && npm run-script unit-test',
        'unit-test': 'mocha --compilers js:babel-register'
      },
      'version': '4.2.0'
    };
  });
  require('/tools/entry-point.js');
}.call(this, this));
mw$.esprima = esprima;
mw$.escodegen = escodegen;
} else { // master compile
esprima = mw$.esprima;
escodegen = mw$.escodegen;
}

// This should be the last line of this file.
// It indicates all functions have been compiled.
mw$.compiled = true;

