diff --git a/node_modules/esprima/ChangeLog b/node_modules/esprima/ChangeLog
new file mode 100644
index 0000000..fafe1c9
--- /dev/null
+++ b/node_modules/esprima/ChangeLog
@@ -0,0 +1,235 @@
+2018-06-17: Version 4.0.1
+
+      *  Fix parsing async get/set in a class (issue 1861, 1875)
+      *  Account for different return statement argument (issue 1829, 1897, 1928)
+      *  Correct the handling of HTML comment when parsing a module (issue 1841)
+      *  Fix incorrect parse async with proto-identifier-shorthand (issue 1847)
+      *  Fix negative column in binary expression (issue 1844)
+      *  Fix incorrect YieldExpression  in object methods (issue 1834)
+      *  Various documentation fixes
+
+2017-06-10: Version 4.0.0
+
+      * Support ES2017 async function and await expression (issue 1079)
+      * Support ES2017 trailing commas in function parameters (issue 1550)
+      * Explicitly distinguish parsing a module vs a script (issue 1576)
+      * Fix JSX non-empty container (issue 1786)
+      * Allow JSX element in a yield expression (issue 1765)
+      * Allow `in` expression in a concise body with a function body (issue 1793)
+      * Setter function argument must not be a rest parameter (issue 1693)
+      * Limit strict mode directive to functions with a simple parameter list (issue 1677)
+      * Prohibit any escape sequence in a reserved word (issue 1612)
+      * Only permit hex digits in hex escape sequence (issue 1619)
+      * Prohibit labelled class/generator/function declaration (issue 1484)
+      * Limit function declaration as if statement clause only in non-strict mode (issue 1657)
+      * Tolerate missing ) in a with and do-while statement (issue 1481)
+
+2016-12-22: Version 3.1.3
+
+      * Support binding patterns as rest element (issue 1681)
+      * Account for different possible arguments of a yield expression (issue 1469)
+
+2016-11-24: Version 3.1.2
+
+      * Ensure that import specifier is more restrictive (issue 1615)
+      * Fix duplicated JSX tokens (issue 1613)
+      * Scan template literal in a JSX expression container (issue 1622)
+      * Improve XHTML entity scanning in JSX (issue 1629)
+
+2016-10-31: Version 3.1.1
+
+      * Fix assignment expression problem in an export declaration (issue 1596)
+      * Fix incorrect tokenization of hex digits (issue 1605)
+
+2016-10-09: Version 3.1.0
+
+      * Do not implicitly collect comments when comment attachment is specified (issue 1553)
+      * Fix incorrect handling of duplicated proto shorthand fields (issue 1485)
+      * Prohibit initialization in some variants of for statements (issue 1309, 1561)
+      * Fix incorrect parsing of export specifier (issue 1578)
+      * Fix ESTree compatibility for assignment pattern (issue 1575)
+
+2016-09-03: Version 3.0.0
+
+      * Support ES2016 exponentiation expression (issue 1490)
+      * Support JSX syntax (issue 1467)
+      * Use the latest Unicode 8.0 (issue 1475)
+      * Add the support for syntax node delegate (issue 1435)
+      * Fix ESTree compatibility on meta property (issue 1338)
+      * Fix ESTree compatibility on default parameter value (issue 1081)
+      * Fix ESTree compatibility on try handler (issue 1030)
+
+2016-08-23: Version 2.7.3
+
+      * Fix tokenizer confusion with a comment (issue 1493, 1516)
+
+2016-02-02: Version 2.7.2
+
+      * Fix out-of-bound error location in an invalid string literal (issue 1457)
+      * Fix shorthand object destructuring defaults in variable declarations (issue 1459)
+
+2015-12-10: Version 2.7.1
+
+      * Do not allow trailing comma in a variable declaration (issue 1360)
+      * Fix assignment to `let` in non-strict mode (issue 1376)
+      * Fix missing delegate property in YieldExpression (issue 1407)
+
+2015-10-22: Version 2.7.0
+
+      * Fix the handling of semicolon in a break statement (issue 1044)
+      * Run the test suite with major web browsers (issue 1259, 1317)
+      * Allow `let` as an identifier in non-strict mode (issue 1289)
+      * Attach orphaned comments as `innerComments` (issue 1328)
+      * Add the support for token delegator (issue 1332)
+
+2015-09-01: Version 2.6.0
+
+      * Properly allow or prohibit `let` in a binding identifier/pattern (issue 1048, 1098)
+      * Add sourceType field for Program node (issue 1159)
+      * Ensure that strict mode reserved word binding throw an error (issue 1171)
+      * Run the test suite with Node.js and IE 11 on Windows (issue 1294)
+      * Allow binding pattern with no initializer in a for statement (issue 1301)
+
+2015-07-31: Version 2.5.0
+
+      * Run the test suite in a browser environment (issue 1004)
+      * Ensure a comma between imported default binding and named imports (issue 1046)
+      * Distinguish `yield` as a keyword vs an identifier (issue 1186)
+      * Support ES6 meta property `new.target` (issue 1203)
+      * Fix the syntax node for yield with expression (issue 1223)
+      * Fix the check of duplicated proto in property names (issue 1225)
+      * Fix ES6 Unicode escape in identifier name (issue 1229)
+      * Support ES6 IdentifierStart and IdentifierPart (issue 1232)
+      * Treat await as a reserved word when parsing as a module (issue 1234)
+      * Recognize identifier characters from Unicode SMP (issue 1244)
+      * Ensure that export and import can be followed by a comma (issue 1250)
+      * Fix yield operator precedence (issue 1262)
+
+2015-07-01: Version 2.4.1
+
+      * Fix some cases of comment attachment (issue 1071, 1175)
+      * Fix the handling of destructuring in function arguments (issue 1193)
+      * Fix invalid ranges in assignment expression (issue 1201)
+
+2015-06-26: Version 2.4.0
+
+      * Support ES6 for-of iteration (issue 1047)
+      * Support ES6 spread arguments (issue 1169)
+      * Minimize npm payload (issue 1191)
+
+2015-06-16: Version 2.3.0
+
+      * Support ES6 generator (issue 1033)
+      * Improve parsing of regular expressions with `u` flag (issue 1179)
+
+2015-04-17: Version 2.2.0
+
+      * Support ES6 import and export declarations (issue 1000)
+      * Fix line terminator before arrow not recognized as error (issue 1009)
+      * Support ES6 destructuring (issue 1045)
+      * Support ES6 template literal (issue 1074)
+      * Fix the handling of invalid/incomplete string escape sequences (issue 1106)
+      * Fix ES3 static member access restriction (issue 1120)
+      * Support for `super` in ES6 class (issue 1147)
+
+2015-03-09: Version 2.1.0
+
+      * Support ES6 class (issue 1001)
+      * Support ES6 rest parameter (issue 1011)
+      * Expand the location of property getter, setter, and methods (issue 1029)
+      * Enable TryStatement transition to a single handler (issue 1031)
+      * Support ES6 computed property name (issue 1037)
+      * Tolerate unclosed block comment (issue 1041)
+      * Support ES6 lexical declaration (issue 1065)
+
+2015-02-06: Version 2.0.0
+
+      * Support ES6 arrow function (issue 517)
+      * Support ES6 Unicode code point escape (issue 521)
+      * Improve the speed and accuracy of comment attachment (issue 522)
+      * Support ES6 default parameter (issue 519)
+      * Support ES6 regular expression flags (issue 557)
+      * Fix scanning of implicit octal literals (issue 565)
+      * Fix the handling of automatic semicolon insertion (issue 574)
+      * Support ES6 method definition (issue 620)
+      * Support ES6 octal integer literal (issue 621)
+      * Support ES6 binary integer literal (issue 622)
+      * Support ES6 object literal property value shorthand (issue 624)
+
+2015-03-03: Version 1.2.5
+
+      * Fix scanning of implicit octal literals (issue 565)
+
+2015-02-05: Version 1.2.4
+
+      * Fix parsing of LeftHandSideExpression in ForInStatement (issue 560)
+      * Fix the handling of automatic semicolon insertion (issue 574)
+
+2015-01-18: Version 1.2.3
+
+      * Fix division by this (issue 616)
+
+2014-05-18: Version 1.2.2
+
+      * Fix duplicated tokens when collecting comments (issue 537)
+
+2014-05-04: Version 1.2.1
+
+      * Ensure that Program node may still have leading comments (issue 536)
+
+2014-04-29: Version 1.2.0
+
+      * Fix semicolon handling for expression statement (issue 462, 533)
+      * Disallow escaped characters in regular expression flags (issue 503)
+      * Performance improvement for location tracking (issue 520)
+      * Improve the speed of comment attachment (issue 522)
+
+2014-03-26: Version 1.1.1
+
+      * Fix token handling of forward slash after an array literal (issue 512)
+
+2014-03-23: Version 1.1.0
+
+      * Optionally attach comments to the owning syntax nodes (issue 197)
+      * Simplify binary parsing with stack-based shift reduce (issue 352)
+      * Always include the raw source of literals (issue 376)
+      * Add optional input source information (issue 386)
+      * Tokenizer API for pure lexical scanning (issue 398)
+      * Improve the web site and its online demos (issue 337, 400, 404)
+      * Performance improvement for location tracking (issue 417, 424)
+      * Support HTML comment syntax (issue 451)
+      * Drop support for legacy browsers (issue 474)
+
+2013-08-27: Version 1.0.4
+
+      * Minimize the payload for packages (issue 362)
+      * Fix missing cases on an empty switch statement (issue 436)
+      * Support escaped ] in regexp literal character classes (issue 442)
+      * Tolerate invalid left-hand side expression (issue 130)
+
+2013-05-17: Version 1.0.3
+
+      * Variable declaration needs at least one declarator (issue 391)
+      * Fix benchmark's variance unit conversion (issue 397)
+      * IE < 9: \v should be treated as vertical tab (issue 405)
+      * Unary expressions should always have prefix: true (issue 418)
+      * Catch clause should only accept an identifier (issue 423)
+      * Tolerate setters without parameter (issue 426)
+
+2012-11-02: Version 1.0.2
+
+    Improvement:
+
+      * Fix esvalidate JUnit output upon a syntax error (issue 374)
+
+2012-10-28: Version 1.0.1
+
+    Improvements:
+
+      * esvalidate understands shebang in a Unix shell script (issue 361)
+      * esvalidate treats fatal parsing failure as an error (issue 361)
+      * Reduce Node.js package via .npmignore (issue 362)
+
+2012-10-22: Version 1.0.0
+
+    Initial release.
diff --git a/node_modules/esprima/LICENSE.BSD b/node_modules/esprima/LICENSE.BSD
new file mode 100644
index 0000000..7a55160
--- /dev/null
+++ b/node_modules/esprima/LICENSE.BSD
@@ -0,0 +1,21 @@
+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.
diff --git a/node_modules/esprima/README.md b/node_modules/esprima/README.md
new file mode 100644
index 0000000..8fb25e6
--- /dev/null
+++ b/node_modules/esprima/README.md
@@ -0,0 +1,46 @@
+[![NPM version](https://img.shields.io/npm/v/esprima.svg)](https://www.npmjs.com/package/esprima)
+[![npm download](https://img.shields.io/npm/dm/esprima.svg)](https://www.npmjs.com/package/esprima)
+[![Build Status](https://img.shields.io/travis/jquery/esprima/master.svg)](https://travis-ci.org/jquery/esprima)
+[![Coverage Status](https://img.shields.io/codecov/c/github/jquery/esprima/master.svg)](https://codecov.io/github/jquery/esprima)
+
+**Esprima** ([esprima.org](http://esprima.org), BSD license) is a high performance,
+standard-compliant [ECMAScript](http://www.ecma-international.org/publications/standards/Ecma-262.htm)
+parser written in ECMAScript (also popularly known as
+[JavaScript](https://en.wikipedia.org/wiki/JavaScript)).
+Esprima is created and maintained by [Ariya Hidayat](https://twitter.com/ariyahidayat),
+with the help of [many contributors](https://github.com/jquery/esprima/contributors).
+
+### Features
+
+- Full support for ECMAScript 2017 ([ECMA-262 8th Edition](http://www.ecma-international.org/publications/standards/Ecma-262.htm))
+- Sensible [syntax tree format](https://github.com/estree/estree/blob/master/es5.md) as standardized by [ESTree project](https://github.com/estree/estree)
+- Experimental support for [JSX](https://facebook.github.io/jsx/), a syntax extension for [React](https://facebook.github.io/react/)
+- Optional tracking of syntax node location (index-based and line-column)
+- [Heavily tested](http://esprima.org/test/ci.html) (~1500 [unit tests](https://github.com/jquery/esprima/tree/master/test/fixtures) with [full code coverage](https://codecov.io/github/jquery/esprima))
+
+### API
+
+Esprima can be used to perform [lexical analysis](https://en.wikipedia.org/wiki/Lexical_analysis) (tokenization) or [syntactic analysis](https://en.wikipedia.org/wiki/Parsing) (parsing) of a JavaScript program.
+
+A simple example on Node.js REPL:
+
+```javascript
+> var esprima = require('esprima');
+> var program = 'const answer = 42';
+
+> esprima.tokenize(program);
+[ { type: 'Keyword', value: 'const' },
+  { type: 'Identifier', value: 'answer' },
+  { type: 'Punctuator', value: '=' },
+  { type: 'Numeric', value: '42' } ]
+  
+> esprima.parseScript(program);
+{ type: 'Program',
+  body:
+   [ { type: 'VariableDeclaration',
+       declarations: [Object],
+       kind: 'const' } ],
+  sourceType: 'script' }
+```
+
+For more information, please read the [complete documentation](http://esprima.org/doc).
\ No newline at end of file
diff --git a/node_modules/esprima/bin/esparse.js b/node_modules/esprima/bin/esparse.js
new file mode 100644
index 0000000..45d05fb
--- /dev/null
+++ b/node_modules/esprima/bin/esparse.js
@@ -0,0 +1,139 @@
+#!/usr/bin/env node
+/*
+  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.
+*/
+
+/*jslint sloppy:true node:true rhino:true */
+
+var fs, esprima, fname, forceFile, content, options, syntax;
+
+if (typeof require === 'function') {
+    fs = require('fs');
+    try {
+        esprima = require('esprima');
+    } catch (e) {
+        esprima = require('../');
+    }
+} else if (typeof load === 'function') {
+    try {
+        load('esprima.js');
+    } catch (e) {
+        load('../esprima.js');
+    }
+}
+
+// Shims to Node.js objects when running under Rhino.
+if (typeof console === 'undefined' && typeof process === 'undefined') {
+    console = { log: print };
+    fs = { readFileSync: readFile };
+    process = { argv: arguments, exit: quit };
+    process.argv.unshift('esparse.js');
+    process.argv.unshift('rhino');
+}
+
+function showUsage() {
+    console.log('Usage:');
+    console.log('   esparse [options] [file.js]');
+    console.log();
+    console.log('Available options:');
+    console.log();
+    console.log('  --comment      Gather all line and block comments in an array');
+    console.log('  --loc          Include line-column location info for each syntax node');
+    console.log('  --range        Include index-based range for each syntax node');
+    console.log('  --raw          Display the raw value of literals');
+    console.log('  --tokens       List all tokens in an array');
+    console.log('  --tolerant     Tolerate errors on a best-effort basis (experimental)');
+    console.log('  -v, --version  Shows program version');
+    console.log();
+    process.exit(1);
+}
+
+options = {};
+
+process.argv.splice(2).forEach(function (entry) {
+
+    if (forceFile || entry === '-' || entry.slice(0, 1) !== '-') {
+        if (typeof fname === 'string') {
+            console.log('Error: more than one input file.');
+            process.exit(1);
+        } else {
+            fname = entry;
+        }
+    } else if (entry === '-h' || entry === '--help') {
+        showUsage();
+    } else if (entry === '-v' || entry === '--version') {
+        console.log('ECMAScript Parser (using Esprima version', esprima.version, ')');
+        console.log();
+        process.exit(0);
+    } else if (entry === '--comment') {
+        options.comment = true;
+    } else if (entry === '--loc') {
+        options.loc = true;
+    } else if (entry === '--range') {
+        options.range = true;
+    } else if (entry === '--raw') {
+        options.raw = true;
+    } else if (entry === '--tokens') {
+        options.tokens = true;
+    } else if (entry === '--tolerant') {
+        options.tolerant = true;
+    } else if (entry === '--') {
+        forceFile = true;
+    } else {
+        console.log('Error: unknown option ' + entry + '.');
+        process.exit(1);
+    }
+});
+
+// Special handling for regular expression literal since we need to
+// convert it to a string literal, otherwise it will be decoded
+// as object "{}" and the regular expression would be lost.
+function adjustRegexLiteral(key, value) {
+    if (key === 'value' && value instanceof RegExp) {
+        value = value.toString();
+    }
+    return value;
+}
+
+function run(content) {
+    syntax = esprima.parse(content, options);
+    console.log(JSON.stringify(syntax, adjustRegexLiteral, 4));
+}
+
+try {
+    if (fname && (fname !== '-' || forceFile)) {
+        run(fs.readFileSync(fname, 'utf-8'));
+    } else {
+        var content = '';
+        process.stdin.resume();
+        process.stdin.on('data', function(chunk) {
+            content += chunk;
+        });
+        process.stdin.on('end', function() {
+            run(content);
+        });
+    }
+} catch (e) {
+    console.log('Error: ' + e.message);
+    process.exit(1);
+}
diff --git a/node_modules/esprima/bin/esvalidate.js b/node_modules/esprima/bin/esvalidate.js
new file mode 100644
index 0000000..d49a7e4
--- /dev/null
+++ b/node_modules/esprima/bin/esvalidate.js
@@ -0,0 +1,236 @@
+#!/usr/bin/env node
+/*
+  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.
+*/
+
+/*jslint sloppy:true plusplus:true node:true rhino:true */
+/*global phantom:true */
+
+var fs, system, esprima, options, fnames, forceFile, count;
+
+if (typeof esprima === 'undefined') {
+    // PhantomJS can only require() relative files
+    if (typeof phantom === 'object') {
+        fs = require('fs');
+        system = require('system');
+        esprima = require('./esprima');
+    } else if (typeof require === 'function') {
+        fs = require('fs');
+        try {
+            esprima = require('esprima');
+        } catch (e) {
+            esprima = require('../');
+        }
+    } else if (typeof load === 'function') {
+        try {
+            load('esprima.js');
+        } catch (e) {
+            load('../esprima.js');
+        }
+    }
+}
+
+// Shims to Node.js objects when running under PhantomJS 1.7+.
+if (typeof phantom === 'object') {
+    fs.readFileSync = fs.read;
+    process = {
+        argv: [].slice.call(system.args),
+        exit: phantom.exit,
+        on: function (evt, callback) {
+            callback();
+        }
+    };
+    process.argv.unshift('phantomjs');
+}
+
+// Shims to Node.js objects when running under Rhino.
+if (typeof console === 'undefined' && typeof process === 'undefined') {
+    console = { log: print };
+    fs = { readFileSync: readFile };
+    process = {
+        argv: arguments,
+        exit: quit,
+        on: function (evt, callback) {
+            callback();
+        }
+    };
+    process.argv.unshift('esvalidate.js');
+    process.argv.unshift('rhino');
+}
+
+function showUsage() {
+    console.log('Usage:');
+    console.log('   esvalidate [options] [file.js...]');
+    console.log();
+    console.log('Available options:');
+    console.log();
+    console.log('  --format=type  Set the report format, plain (default) or junit');
+    console.log('  -v, --version  Print program version');
+    console.log();
+    process.exit(1);
+}
+
+options = {
+    format: 'plain'
+};
+
+fnames = [];
+
+process.argv.splice(2).forEach(function (entry) {
+
+    if (forceFile || entry === '-' || entry.slice(0, 1) !== '-') {
+        fnames.push(entry);
+    } else if (entry === '-h' || entry === '--help') {
+        showUsage();
+    } else if (entry === '-v' || entry === '--version') {
+        console.log('ECMAScript Validator (using Esprima version', esprima.version, ')');
+        console.log();
+        process.exit(0);
+    } else if (entry.slice(0, 9) === '--format=') {
+        options.format = entry.slice(9);
+        if (options.format !== 'plain' && options.format !== 'junit') {
+            console.log('Error: unknown report format ' + options.format + '.');
+            process.exit(1);
+        }
+    } else if (entry === '--') {
+        forceFile = true;
+    } else {
+        console.log('Error: unknown option ' + entry + '.');
+        process.exit(1);
+    }
+});
+
+if (fnames.length === 0) {
+    fnames.push('');
+}
+
+if (options.format === 'junit') {
+    console.log('<?xml version="1.0" encoding="UTF-8"?>');
+    console.log('<testsuites>');
+}
+
+count = 0;
+
+function run(fname, content) {
+    var timestamp, syntax, name;
+    try {
+        if (typeof content !== 'string') {
+            throw content;
+        }
+
+        if (content[0] === '#' && content[1] === '!') {
+            content = '//' + content.substr(2, content.length);
+        }
+
+        timestamp = Date.now();
+        syntax = esprima.parse(content, { tolerant: true });
+
+        if (options.format === 'junit') {
+
+            name = fname;
+            if (name.lastIndexOf('/') >= 0) {
+                name = name.slice(name.lastIndexOf('/') + 1);
+            }
+
+            console.log('<testsuite name="' + fname + '" errors="0" ' +
+                ' failures="' + syntax.errors.length + '" ' +
+                ' tests="' + syntax.errors.length + '" ' +
+                ' time="' + Math.round((Date.now() - timestamp) / 1000) +
+                '">');
+
+            syntax.errors.forEach(function (error) {
+                var msg = error.message;
+                msg = msg.replace(/^Line\ [0-9]*\:\ /, '');
+                console.log('  <testcase name="Line ' + error.lineNumber + ': ' + msg + '" ' +
+                    ' time="0">');
+                console.log('    <error type="SyntaxError" message="' + error.message + '">' +
+                    error.message + '(' + name + ':' + error.lineNumber + ')' +
+                    '</error>');
+                console.log('  </testcase>');
+            });
+
+            console.log('</testsuite>');
+
+        } else if (options.format === 'plain') {
+
+            syntax.errors.forEach(function (error) {
+                var msg = error.message;
+                msg = msg.replace(/^Line\ [0-9]*\:\ /, '');
+                msg = fname + ':' + error.lineNumber + ': ' + msg;
+                console.log(msg);
+                ++count;
+            });
+
+        }
+    } catch (e) {
+        ++count;
+        if (options.format === 'junit') {
+            console.log('<testsuite name="' + fname + '" errors="1" failures="0" tests="1" ' +
+                ' time="' + Math.round((Date.now() - timestamp) / 1000) + '">');
+            console.log(' <testcase name="' + e.message + '" ' + ' time="0">');
+            console.log(' <error type="ParseError" message="' + e.message + '">' +
+                e.message + '(' + fname + ((e.lineNumber) ? ':' + e.lineNumber : '') +
+                ')</error>');
+            console.log(' </testcase>');
+            console.log('</testsuite>');
+        } else {
+            console.log(fname + ':' + e.lineNumber + ': ' + e.message.replace(/^Line\ [0-9]*\:\ /, ''));
+        }
+    }
+}
+
+fnames.forEach(function (fname) {
+    var content = '';
+    try {
+        if (fname && (fname !== '-' || forceFile)) {
+            content = fs.readFileSync(fname, 'utf-8');
+        } else {
+            fname = '';
+            process.stdin.resume();
+            process.stdin.on('data', function(chunk) {
+                content += chunk;
+            });
+            process.stdin.on('end', function() {
+                run(fname, content);
+            });
+            return;
+        }
+    } catch (e) {
+        content = e;
+    }
+    run(fname, content);
+});
+
+process.on('exit', function () {
+    if (options.format === 'junit') {
+        console.log('</testsuites>');
+    }
+
+    if (count > 0) {
+        process.exit(1);
+    }
+
+    if (count === 0 && typeof phantom === 'object') {
+        process.exit(0);
+    }
+});
diff --git a/node_modules/esprima/dist/esprima.js b/node_modules/esprima/dist/esprima.js
new file mode 100644
index 0000000..2af3eee
--- /dev/null
+++ b/node_modules/esprima/dist/esprima.js
@@ -0,0 +1,6709 @@
+(function webpackUniversalModuleDefinition(root, factory) {
+/* istanbul ignore next */
+	if(typeof exports === 'object' && typeof module === 'object')
+		module.exports = factory();
+	else if(typeof define === 'function' && define.amd)
+		define([], factory);
+/* istanbul ignore next */
+	else if(typeof exports === 'object')
+		exports["esprima"] = factory();
+	else
+		root["esprima"] = factory();
+})(this, function() {
+return /******/ (function(modules) { // webpackBootstrap
+/******/ 	// The module cache
+/******/ 	var installedModules = {};
+
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
+
+/******/ 		// Check if module is in cache
+/* istanbul ignore if */
+/******/ 		if(installedModules[moduleId])
+/******/ 			return installedModules[moduleId].exports;
+
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = installedModules[moduleId] = {
+/******/ 			exports: {},
+/******/ 			id: moduleId,
+/******/ 			loaded: false
+/******/ 		};
+
+/******/ 		// Execute the module function
+/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+
+/******/ 		// Flag the module as loaded
+/******/ 		module.loaded = true;
+
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
+
+
+/******/ 	// expose the modules object (__webpack_modules__)
+/******/ 	__webpack_require__.m = modules;
+
+/******/ 	// expose the module cache
+/******/ 	__webpack_require__.c = installedModules;
+
+/******/ 	// __webpack_public_path__
+/******/ 	__webpack_require__.p = "";
+
+/******/ 	// Load entry module and return exports
+/******/ 	return __webpack_require__(0);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+	/*
+	  Copyright JS Foundation and other contributors, https://js.foundation/
+
+	  Redistribution and use in source and binary forms, with or without
+	  modification, are permitted provided that the following conditions are met:
+
+	    * Redistributions of source code must retain the above copyright
+	      notice, this list of conditions and the following disclaimer.
+	    * Redistributions in binary form must reproduce the above copyright
+	      notice, this list of conditions and the following disclaimer in the
+	      documentation and/or other materials provided with the distribution.
+
+	  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+	  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+	  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+	  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+	  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+	  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+	  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+	  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+	  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+	  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+	*/
+	Object.defineProperty(exports, "__esModule", { value: true });
+	var comment_handler_1 = __webpack_require__(1);
+	var jsx_parser_1 = __webpack_require__(3);
+	var parser_1 = __webpack_require__(8);
+	var tokenizer_1 = __webpack_require__(15);
+	function parse(code, options, delegate) {
+	    var commentHandler = null;
+	    var proxyDelegate = function (node, metadata) {
+	        if (delegate) {
+	            delegate(node, metadata);
+	        }
+	        if (commentHandler) {
+	            commentHandler.visit(node, metadata);
+	        }
+	    };
+	    var parserDelegate = (typeof delegate === 'function') ? proxyDelegate : null;
+	    var collectComment = false;
+	    if (options) {
+	        collectComment = (typeof options.comment === 'boolean' && options.comment);
+	        var attachComment = (typeof options.attachComment === 'boolean' && options.attachComment);
+	        if (collectComment || attachComment) {
+	            commentHandler = new comment_handler_1.CommentHandler();
+	            commentHandler.attach = attachComment;
+	            options.comment = true;
+	            parserDelegate = proxyDelegate;
+	        }
+	    }
+	    var isModule = false;
+	    if (options && typeof options.sourceType === 'string') {
+	        isModule = (options.sourceType === 'module');
+	    }
+	    var parser;
+	    if (options && typeof options.jsx === 'boolean' && options.jsx) {
+	        parser = new jsx_parser_1.JSXParser(code, options, parserDelegate);
+	    }
+	    else {
+	        parser = new parser_1.Parser(code, options, parserDelegate);
+	    }
+	    var program = isModule ? parser.parseModule() : parser.parseScript();
+	    var ast = program;
+	    if (collectComment && commentHandler) {
+	        ast.comments = commentHandler.comments;
+	    }
+	    if (parser.config.tokens) {
+	        ast.tokens = parser.tokens;
+	    }
+	    if (parser.config.tolerant) {
+	        ast.errors = parser.errorHandler.errors;
+	    }
+	    return ast;
+	}
+	exports.parse = parse;
+	function parseModule(code, options, delegate) {
+	    var parsingOptions = options || {};
+	    parsingOptions.sourceType = 'module';
+	    return parse(code, parsingOptions, delegate);
+	}
+	exports.parseModule = parseModule;
+	function parseScript(code, options, delegate) {
+	    var parsingOptions = options || {};
+	    parsingOptions.sourceType = 'script';
+	    return parse(code, parsingOptions, delegate);
+	}
+	exports.parseScript = parseScript;
+	function tokenize(code, options, delegate) {
+	    var tokenizer = new tokenizer_1.Tokenizer(code, options);
+	    var tokens;
+	    tokens = [];
+	    try {
+	        while (true) {
+	            var token = tokenizer.getNextToken();
+	            if (!token) {
+	                break;
+	            }
+	            if (delegate) {
+	                token = delegate(token);
+	            }
+	            tokens.push(token);
+	        }
+	    }
+	    catch (e) {
+	        tokenizer.errorHandler.tolerate(e);
+	    }
+	    if (tokenizer.errorHandler.tolerant) {
+	        tokens.errors = tokenizer.errors();
+	    }
+	    return tokens;
+	}
+	exports.tokenize = tokenize;
+	var syntax_1 = __webpack_require__(2);
+	exports.Syntax = syntax_1.Syntax;
+	// Sync with *.json manifests.
+	exports.version = '4.0.1';
+
+
+/***/ },
+/* 1 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+	Object.defineProperty(exports, "__esModule", { value: true });
+	var syntax_1 = __webpack_require__(2);
+	var CommentHandler = (function () {
+	    function CommentHandler() {
+	        this.attach = false;
+	        this.comments = [];
+	        this.stack = [];
+	        this.leading = [];
+	        this.trailing = [];
+	    }
+	    CommentHandler.prototype.insertInnerComments = function (node, metadata) {
+	        //  innnerComments for properties empty block
+	        //  `function a() {/** comments **\/}`
+	        if (node.type === syntax_1.Syntax.BlockStatement && node.body.length === 0) {
+	            var innerComments = [];
+	            for (var i = this.leading.length - 1; i >= 0; --i) {
+	                var entry = this.leading[i];
+	                if (metadata.end.offset >= entry.start) {
+	                    innerComments.unshift(entry.comment);
+	                    this.leading.splice(i, 1);
+	                    this.trailing.splice(i, 1);
+	                }
+	            }
+	            if (innerComments.length) {
+	                node.innerComments = innerComments;
+	            }
+	        }
+	    };
+	    CommentHandler.prototype.findTrailingComments = function (metadata) {
+	        var trailingComments = [];
+	        if (this.trailing.length > 0) {
+	            for (var i = this.trailing.length - 1; i >= 0; --i) {
+	                var entry_1 = this.trailing[i];
+	                if (entry_1.start >= metadata.end.offset) {
+	                    trailingComments.unshift(entry_1.comment);
+	                }
+	            }
+	            this.trailing.length = 0;
+	            return trailingComments;
+	        }
+	        var entry = this.stack[this.stack.length - 1];
+	        if (entry && entry.node.trailingComments) {
+	            var firstComment = entry.node.trailingComments[0];
+	            if (firstComment && firstComment.range[0] >= metadata.end.offset) {
+	                trailingComments = entry.node.trailingComments;
+	                delete entry.node.trailingComments;
+	            }
+	        }
+	        return trailingComments;
+	    };
+	    CommentHandler.prototype.findLeadingComments = function (metadata) {
+	        var leadingComments = [];
+	        var target;
+	        while (this.stack.length > 0) {
+	            var entry = this.stack[this.stack.length - 1];
+	            if (entry && entry.start >= metadata.start.offset) {
+	                target = entry.node;
+	                this.stack.pop();
+	            }
+	            else {
+	                break;
+	            }
+	        }
+	        if (target) {
+	            var count = target.leadingComments ? target.leadingComments.length : 0;
+	            for (var i = count - 1; i >= 0; --i) {
+	                var comment = target.leadingComments[i];
+	                if (comment.range[1] <= metadata.start.offset) {
+	                    leadingComments.unshift(comment);
+	                    target.leadingComments.splice(i, 1);
+	                }
+	            }
+	            if (target.leadingComments && target.leadingComments.length === 0) {
+	                delete target.leadingComments;
+	            }
+	            return leadingComments;
+	        }
+	        for (var i = this.leading.length - 1; i >= 0; --i) {
+	            var entry = this.leading[i];
+	            if (entry.start <= metadata.start.offset) {
+	                leadingComments.unshift(entry.comment);
+	                this.leading.splice(i, 1);
+	            }
+	        }
+	        return leadingComments;
+	    };
+	    CommentHandler.prototype.visitNode = function (node, metadata) {
+	        if (node.type === syntax_1.Syntax.Program && node.body.length > 0) {
+	            return;
+	        }
+	        this.insertInnerComments(node, metadata);
+	        var trailingComments = this.findTrailingComments(metadata);
+	        var leadingComments = this.findLeadingComments(metadata);
+	        if (leadingComments.length > 0) {
+	            node.leadingComments = leadingComments;
+	        }
+	        if (trailingComments.length > 0) {
+	            node.trailingComments = trailingComments;
+	        }
+	        this.stack.push({
+	            node: node,
+	            start: metadata.start.offset
+	        });
+	    };
+	    CommentHandler.prototype.visitComment = function (node, metadata) {
+	        var type = (node.type[0] === 'L') ? 'Line' : 'Block';
+	        var comment = {
+	            type: type,
+	            value: node.value
+	        };
+	        if (node.range) {
+	            comment.range = node.range;
+	        }
+	        if (node.loc) {
+	            comment.loc = node.loc;
+	        }
+	        this.comments.push(comment);
+	        if (this.attach) {
+	            var entry = {
+	                comment: {
+	                    type: type,
+	                    value: node.value,
+	                    range: [metadata.start.offset, metadata.end.offset]
+	                },
+	                start: metadata.start.offset
+	            };
+	            if (node.loc) {
+	                entry.comment.loc = node.loc;
+	            }
+	            node.type = type;
+	            this.leading.push(entry);
+	            this.trailing.push(entry);
+	        }
+	    };
+	    CommentHandler.prototype.visit = function (node, metadata) {
+	        if (node.type === 'LineComment') {
+	            this.visitComment(node, metadata);
+	        }
+	        else if (node.type === 'BlockComment') {
+	            this.visitComment(node, metadata);
+	        }
+	        else if (this.attach) {
+	            this.visitNode(node, metadata);
+	        }
+	    };
+	    return CommentHandler;
+	}());
+	exports.CommentHandler = CommentHandler;
+
+
+/***/ },
+/* 2 */
+/***/ function(module, exports) {
+
+	"use strict";
+	Object.defineProperty(exports, "__esModule", { value: true });
+	exports.Syntax = {
+	    AssignmentExpression: 'AssignmentExpression',
+	    AssignmentPattern: 'AssignmentPattern',
+	    ArrayExpression: 'ArrayExpression',
+	    ArrayPattern: 'ArrayPattern',
+	    ArrowFunctionExpression: 'ArrowFunctionExpression',
+	    AwaitExpression: 'AwaitExpression',
+	    BlockStatement: 'BlockStatement',
+	    BinaryExpression: 'BinaryExpression',
+	    BreakStatement: 'BreakStatement',
+	    CallExpression: 'CallExpression',
+	    CatchClause: 'CatchClause',
+	    ClassBody: 'ClassBody',
+	    ClassDeclaration: 'ClassDeclaration',
+	    ClassExpression: 'ClassExpression',
+	    ConditionalExpression: 'ConditionalExpression',
+	    ContinueStatement: 'ContinueStatement',
+	    DoWhileStatement: 'DoWhileStatement',
+	    DebuggerStatement: 'DebuggerStatement',
+	    EmptyStatement: 'EmptyStatement',
+	    ExportAllDeclaration: 'ExportAllDeclaration',
+	    ExportDefaultDeclaration: 'ExportDefaultDeclaration',
+	    ExportNamedDeclaration: 'ExportNamedDeclaration',
+	    ExportSpecifier: 'ExportSpecifier',
+	    ExpressionStatement: 'ExpressionStatement',
+	    ForStatement: 'ForStatement',
+	    ForOfStatement: 'ForOfStatement',
+	    ForInStatement: 'ForInStatement',
+	    FunctionDeclaration: 'FunctionDeclaration',
+	    FunctionExpression: 'FunctionExpression',
+	    Identifier: 'Identifier',
+	    IfStatement: 'IfStatement',
+	    ImportDeclaration: 'ImportDeclaration',
+	    ImportDefaultSpecifier: 'ImportDefaultSpecifier',
+	    ImportNamespaceSpecifier: 'ImportNamespaceSpecifier',
+	    ImportSpecifier: 'ImportSpecifier',
+	    Literal: 'Literal',
+	    LabeledStatement: 'LabeledStatement',
+	    LogicalExpression: 'LogicalExpression',
+	    MemberExpression: 'MemberExpression',
+	    MetaProperty: 'MetaProperty',
+	    MethodDefinition: 'MethodDefinition',
+	    NewExpression: 'NewExpression',
+	    ObjectExpression: 'ObjectExpression',
+	    ObjectPattern: 'ObjectPattern',
+	    Program: 'Program',
+	    Property: 'Property',
+	    RestElement: 'RestElement',
+	    ReturnStatement: 'ReturnStatement',
+	    SequenceExpression: 'SequenceExpression',
+	    SpreadElement: 'SpreadElement',
+	    Super: 'Super',
+	    SwitchCase: 'SwitchCase',
+	    SwitchStatement: 'SwitchStatement',
+	    TaggedTemplateExpression: 'TaggedTemplateExpression',
+	    TemplateElement: 'TemplateElement',
+	    TemplateLiteral: 'TemplateLiteral',
+	    ThisExpression: 'ThisExpression',
+	    ThrowStatement: 'ThrowStatement',
+	    TryStatement: 'TryStatement',
+	    UnaryExpression: 'UnaryExpression',
+	    UpdateExpression: 'UpdateExpression',
+	    VariableDeclaration: 'VariableDeclaration',
+	    VariableDeclarator: 'VariableDeclarator',
+	    WhileStatement: 'WhileStatement',
+	    WithStatement: 'WithStatement',
+	    YieldExpression: 'YieldExpression'
+	};
+
+
+/***/ },
+/* 3 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+/* istanbul ignore next */
+	var __extends = (this && this.__extends) || (function () {
+	    var extendStatics = Object.setPrototypeOf ||
+	        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+	        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+	    return function (d, b) {
+	        extendStatics(d, b);
+	        function __() { this.constructor = d; }
+	        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+	    };
+	})();
+	Object.defineProperty(exports, "__esModule", { value: true });
+	var character_1 = __webpack_require__(4);
+	var JSXNode = __webpack_require__(5);
+	var jsx_syntax_1 = __webpack_require__(6);
+	var Node = __webpack_require__(7);
+	var parser_1 = __webpack_require__(8);
+	var token_1 = __webpack_require__(13);
+	var xhtml_entities_1 = __webpack_require__(14);
+	token_1.TokenName[100 /* Identifier */] = 'JSXIdentifier';
+	token_1.TokenName[101 /* Text */] = 'JSXText';
+	// Fully qualified element name, e.g. <svg:path> returns "svg:path"
+	function getQualifiedElementName(elementName) {
+	    var qualifiedName;
+	    switch (elementName.type) {
+	        case jsx_syntax_1.JSXSyntax.JSXIdentifier:
+	            var id = elementName;
+	            qualifiedName = id.name;
+	            break;
+	        case jsx_syntax_1.JSXSyntax.JSXNamespacedName:
+	            var ns = elementName;
+	            qualifiedName = getQualifiedElementName(ns.namespace) + ':' +
+	                getQualifiedElementName(ns.name);
+	            break;
+	        case jsx_syntax_1.JSXSyntax.JSXMemberExpression:
+	            var expr = elementName;
+	            qualifiedName = getQualifiedElementName(expr.object) + '.' +
+	                getQualifiedElementName(expr.property);
+	            break;
+	        /* istanbul ignore next */
+	        default:
+	            break;
+	    }
+	    return qualifiedName;
+	}
+	var JSXParser = (function (_super) {
+	    __extends(JSXParser, _super);
+	    function JSXParser(code, options, delegate) {
+	        return _super.call(this, code, options, delegate) || this;
+	    }
+	    JSXParser.prototype.parsePrimaryExpression = function () {
+	        return this.match('<') ? this.parseJSXRoot() : _super.prototype.parsePrimaryExpression.call(this);
+	    };
+	    JSXParser.prototype.startJSX = function () {
+	        // Unwind the scanner before the lookahead token.
+	        this.scanner.index = this.startMarker.index;
+	        this.scanner.lineNumber = this.startMarker.line;
+	        this.scanner.lineStart = this.startMarker.index - this.startMarker.column;
+	    };
+	    JSXParser.prototype.finishJSX = function () {
+	        // Prime the next lookahead.
+	        this.nextToken();
+	    };
+	    JSXParser.prototype.reenterJSX = function () {
+	        this.startJSX();
+	        this.expectJSX('}');
+	        // Pop the closing '}' added from the lookahead.
+	        if (this.config.tokens) {
+	            this.tokens.pop();
+	        }
+	    };
+	    JSXParser.prototype.createJSXNode = function () {
+	        this.collectComments();
+	        return {
+	            index: this.scanner.index,
+	            line: this.scanner.lineNumber,
+	            column: this.scanner.index - this.scanner.lineStart
+	        };
+	    };
+	    JSXParser.prototype.createJSXChildNode = function () {
+	        return {
+	            index: this.scanner.index,
+	            line: this.scanner.lineNumber,
+	            column: this.scanner.index - this.scanner.lineStart
+	        };
+	    };
+	    JSXParser.prototype.scanXHTMLEntity = function (quote) {
+	        var result = '&';
+	        var valid = true;
+	        var terminated = false;
+	        var numeric = false;
+	        var hex = false;
+	        while (!this.scanner.eof() && valid && !terminated) {
+	            var ch = this.scanner.source[this.scanner.index];
+	            if (ch === quote) {
+	                break;
+	            }
+	            terminated = (ch === ';');
+	            result += ch;
+	            ++this.scanner.index;
+	            if (!terminated) {
+	                switch (result.length) {
+	                    case 2:
+	                        // e.g. '&#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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+	};
+	exports.Character = {
+	    /* tslint:disable:no-bitwise */
+	    fromCodePoint: function (cp) {
+	        return (cp < 0x10000) ? String.fromCharCode(cp) :
+	            String.fromCharCode(0xD800 + ((cp - 0x10000) >> 10)) +
+	                String.fromCharCode(0xDC00 + ((cp - 0x10000) & 1023));
+	    },
+	    // https://tc39.github.io/ecma262/#sec-white-space
+	    isWhiteSpace: function (cp) {
+	        return (cp === 0x20) || (cp === 0x09) || (cp === 0x0B) || (cp === 0x0C) || (cp === 0xA0) ||
+	            (cp >= 0x1680 && [0x1680, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(cp) >= 0);
+	    },
+	    // https://tc39.github.io/ecma262/#sec-line-terminators
+	    isLineTerminator: function (cp) {
+	        return (cp === 0x0A) || (cp === 0x0D) || (cp === 0x2028) || (cp === 0x2029);
+	    },
+	    // https://tc39.github.io/ecma262/#sec-names-and-keywords
+	    isIdentifierStart: function (cp) {
+	        return (cp === 0x24) || (cp === 0x5F) ||
+	            (cp >= 0x41 && cp <= 0x5A) ||
+	            (cp >= 0x61 && cp <= 0x7A) ||
+	            (cp === 0x5C) ||
+	            ((cp >= 0x80) && Regex.NonAsciiIdentifierStart.test(exports.Character.fromCodePoint(cp)));
+	    },
+	    isIdentifierPart: function (cp) {
+	        return (cp === 0x24) || (cp === 0x5F) ||
+	            (cp >= 0x41 && cp <= 0x5A) ||
+	            (cp >= 0x61 && cp <= 0x7A) ||
+	            (cp >= 0x30 && cp <= 0x39) ||
+	            (cp === 0x5C) ||
+	            ((cp >= 0x80) && Regex.NonAsciiIdentifierPart.test(exports.Character.fromCodePoint(cp)));
+	    },
+	    // https://tc39.github.io/ecma262/#sec-literals-numeric-literals
+	    isDecimalDigit: function (cp) {
+	        return (cp >= 0x30 && cp <= 0x39); // 0..9
+	    },
+	    isHexDigit: function (cp) {
+	        return (cp >= 0x30 && cp <= 0x39) ||
+	            (cp >= 0x41 && cp <= 0x46) ||
+	            (cp >= 0x61 && cp <= 0x66); // a..f
+	    },
+	    isOctalDigit: function (cp) {
+	        return (cp >= 0x30 && cp <= 0x37); // 0..7
+	    }
+	};
+
+
+/***/ },
+/* 5 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+	Object.defineProperty(exports, "__esModule", { value: true });
+	var jsx_syntax_1 = __webpack_require__(6);
+	/* tslint:disable:max-classes-per-file */
+	var JSXClosingElement = (function () {
+	    function JSXClosingElement(name) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXClosingElement;
+	        this.name = name;
+	    }
+	    return JSXClosingElement;
+	}());
+	exports.JSXClosingElement = JSXClosingElement;
+	var JSXElement = (function () {
+	    function JSXElement(openingElement, children, closingElement) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXElement;
+	        this.openingElement = openingElement;
+	        this.children = children;
+	        this.closingElement = closingElement;
+	    }
+	    return JSXElement;
+	}());
+	exports.JSXElement = JSXElement;
+	var JSXEmptyExpression = (function () {
+	    function JSXEmptyExpression() {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXEmptyExpression;
+	    }
+	    return JSXEmptyExpression;
+	}());
+	exports.JSXEmptyExpression = JSXEmptyExpression;
+	var JSXExpressionContainer = (function () {
+	    function JSXExpressionContainer(expression) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXExpressionContainer;
+	        this.expression = expression;
+	    }
+	    return JSXExpressionContainer;
+	}());
+	exports.JSXExpressionContainer = JSXExpressionContainer;
+	var JSXIdentifier = (function () {
+	    function JSXIdentifier(name) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXIdentifier;
+	        this.name = name;
+	    }
+	    return JSXIdentifier;
+	}());
+	exports.JSXIdentifier = JSXIdentifier;
+	var JSXMemberExpression = (function () {
+	    function JSXMemberExpression(object, property) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXMemberExpression;
+	        this.object = object;
+	        this.property = property;
+	    }
+	    return JSXMemberExpression;
+	}());
+	exports.JSXMemberExpression = JSXMemberExpression;
+	var JSXAttribute = (function () {
+	    function JSXAttribute(name, value) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXAttribute;
+	        this.name = name;
+	        this.value = value;
+	    }
+	    return JSXAttribute;
+	}());
+	exports.JSXAttribute = JSXAttribute;
+	var JSXNamespacedName = (function () {
+	    function JSXNamespacedName(namespace, name) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXNamespacedName;
+	        this.namespace = namespace;
+	        this.name = name;
+	    }
+	    return JSXNamespacedName;
+	}());
+	exports.JSXNamespacedName = JSXNamespacedName;
+	var JSXOpeningElement = (function () {
+	    function JSXOpeningElement(name, selfClosing, attributes) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXOpeningElement;
+	        this.name = name;
+	        this.selfClosing = selfClosing;
+	        this.attributes = attributes;
+	    }
+	    return JSXOpeningElement;
+	}());
+	exports.JSXOpeningElement = JSXOpeningElement;
+	var JSXSpreadAttribute = (function () {
+	    function JSXSpreadAttribute(argument) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXSpreadAttribute;
+	        this.argument = argument;
+	    }
+	    return JSXSpreadAttribute;
+	}());
+	exports.JSXSpreadAttribute = JSXSpreadAttribute;
+	var JSXText = (function () {
+	    function JSXText(value, raw) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXText;
+	        this.value = value;
+	        this.raw = raw;
+	    }
+	    return JSXText;
+	}());
+	exports.JSXText = JSXText;
+
+
+/***/ },
+/* 6 */
+/***/ function(module, exports) {
+
+	"use strict";
+	Object.defineProperty(exports, "__esModule", { value: true });
+	exports.JSXSyntax = {
+	    JSXAttribute: 'JSXAttribute',
+	    JSXClosingElement: 'JSXClosingElement',
+	    JSXElement: 'JSXElement',
+	    JSXEmptyExpression: 'JSXEmptyExpression',
+	    JSXExpressionContainer: 'JSXExpressionContainer',
+	    JSXIdentifier: 'JSXIdentifier',
+	    JSXMemberExpression: 'JSXMemberExpression',
+	    JSXNamespacedName: 'JSXNamespacedName',
+	    JSXOpeningElement: 'JSXOpeningElement',
+	    JSXSpreadAttribute: 'JSXSpreadAttribute',
+	    JSXText: 'JSXText'
+	};
+
+
+/***/ },
+/* 7 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+	Object.defineProperty(exports, "__esModule", { value: true });
+	var syntax_1 = __webpack_require__(2);
+	/* tslint:disable:max-classes-per-file */
+	var ArrayExpression = (function () {
+	    function ArrayExpression(elements) {
+	        this.type = syntax_1.Syntax.ArrayExpression;
+	        this.elements = elements;
+	    }
+	    return ArrayExpression;
+	}());
+	exports.ArrayExpression = ArrayExpression;
+	var ArrayPattern = (function () {
+	    function ArrayPattern(elements) {
+	        this.type = syntax_1.Syntax.ArrayPattern;
+	        this.elements = elements;
+	    }
+	    return ArrayPattern;
+	}());
+	exports.ArrayPattern = ArrayPattern;
+	var ArrowFunctionExpression = (function () {
+	    function ArrowFunctionExpression(params, body, expression) {
+	        this.type = syntax_1.Syntax.ArrowFunctionExpression;
+	        this.id = null;
+	        this.params = params;
+	        this.body = body;
+	        this.generator = false;
+	        this.expression = expression;
+	        this.async = false;
+	    }
+	    return ArrowFunctionExpression;
+	}());
+	exports.ArrowFunctionExpression = ArrowFunctionExpression;
+	var AssignmentExpression = (function () {
+	    function AssignmentExpression(operator, left, right) {
+	        this.type = syntax_1.Syntax.AssignmentExpression;
+	        this.operator = operator;
+	        this.left = left;
+	        this.right = right;
+	    }
+	    return AssignmentExpression;
+	}());
+	exports.AssignmentExpression = AssignmentExpression;
+	var AssignmentPattern = (function () {
+	    function AssignmentPattern(left, right) {
+	        this.type = syntax_1.Syntax.AssignmentPattern;
+	        this.left = left;
+	        this.right = right;
+	    }
+	    return AssignmentPattern;
+	}());
+	exports.AssignmentPattern = AssignmentPattern;
+	var AsyncArrowFunctionExpression = (function () {
+	    function AsyncArrowFunctionExpression(params, body, expression) {
+	        this.type = syntax_1.Syntax.ArrowFunctionExpression;
+	        this.id = null;
+	        this.params = params;
+	        this.body = body;
+	        this.generator = false;
+	        this.expression = expression;
+	        this.async = true;
+	    }
+	    return AsyncArrowFunctionExpression;
+	}());
+	exports.AsyncArrowFunctionExpression = AsyncArrowFunctionExpression;
+	var AsyncFunctionDeclaration = (function () {
+	    function AsyncFunctionDeclaration(id, params, body) {
+	        this.type = syntax_1.Syntax.FunctionDeclaration;
+	        this.id = id;
+	        this.params = params;
+	        this.body = body;
+	        this.generator = false;
+	        this.expression = false;
+	        this.async = true;
+	    }
+	    return AsyncFunctionDeclaration;
+	}());
+	exports.AsyncFunctionDeclaration = AsyncFunctionDeclaration;
+	var AsyncFunctionExpression = (function () {
+	    function AsyncFunctionExpression(id, params, body) {
+	        this.type = syntax_1.Syntax.FunctionExpression;
+	        this.id = id;
+	        this.params = params;
+	        this.body = body;
+	        this.generator = false;
+	        this.expression = false;
+	        this.async = true;
+	    }
+	    return AsyncFunctionExpression;
+	}());
+	exports.AsyncFunctionExpression = AsyncFunctionExpression;
+	var AwaitExpression = (function () {
+	    function AwaitExpression(argument) {
+	        this.type = syntax_1.Syntax.AwaitExpression;
+	        this.argument = argument;
+	    }
+	    return AwaitExpression;
+	}());
+	exports.AwaitExpression = AwaitExpression;
+	var BinaryExpression = (function () {
+	    function BinaryExpression(operator, left, right) {
+	        var logical = (operator === '||' || operator === '&&');
+	        this.type = logical ? syntax_1.Syntax.LogicalExpression : syntax_1.Syntax.BinaryExpression;
+	        this.operator = operator;
+	        this.left = left;
+	        this.right = right;
+	    }
+	    return BinaryExpression;
+	}());
+	exports.BinaryExpression = BinaryExpression;
+	var BlockStatement = (function () {
+	    function BlockStatement(body) {
+	        this.type = syntax_1.Syntax.BlockStatement;
+	        this.body = body;
+	    }
+	    return BlockStatement;
+	}());
+	exports.BlockStatement = BlockStatement;
+	var BreakStatement = (function () {
+	    function BreakStatement(label) {
+	        this.type = syntax_1.Syntax.BreakStatement;
+	        this.label = label;
+	    }
+	    return BreakStatement;
+	}());
+	exports.BreakStatement = BreakStatement;
+	var CallExpression = (function () {
+	    function CallExpression(callee, args) {
+	        this.type = syntax_1.Syntax.CallExpression;
+	        this.callee = callee;
+	        this.arguments = args;
+	    }
+	    return CallExpression;
+	}());
+	exports.CallExpression = CallExpression;
+	var CatchClause = (function () {
+	    function CatchClause(param, body) {
+	        this.type = syntax_1.Syntax.CatchClause;
+	        this.param = param;
+	        this.body = body;
+	    }
+	    return CatchClause;
+	}());
+	exports.CatchClause = CatchClause;
+	var ClassBody = (function () {
+	    function ClassBody(body) {
+	        this.type = syntax_1.Syntax.ClassBody;
+	        this.body = body;
+	    }
+	    return ClassBody;
+	}());
+	exports.ClassBody = ClassBody;
+	var ClassDeclaration = (function () {
+	    function ClassDeclaration(id, superClass, body) {
+	        this.type = syntax_1.Syntax.ClassDeclaration;
+	        this.id = id;
+	        this.superClass = superClass;
+	        this.body = body;
+	    }
+	    return ClassDeclaration;
+	}());
+	exports.ClassDeclaration = ClassDeclaration;
+	var ClassExpression = (function () {
+	    function ClassExpression(id, superClass, body) {
+	        this.type = syntax_1.Syntax.ClassExpression;
+	        this.id = id;
+	        this.superClass = superClass;
+	        this.body = body;
+	    }
+	    return ClassExpression;
+	}());
+	exports.ClassExpression = ClassExpression;
+	var ComputedMemberExpression = (function () {
+	    function ComputedMemberExpression(object, property) {
+	        this.type = syntax_1.Syntax.MemberExpression;
+	        this.computed = true;
+	        this.object = object;
+	        this.property = property;
+	    }
+	    return ComputedMemberExpression;
+	}());
+	exports.ComputedMemberExpression = ComputedMemberExpression;
+	var ConditionalExpression = (function () {
+	    function ConditionalExpression(test, consequent, alternate) {
+	        this.type = syntax_1.Syntax.ConditionalExpression;
+	        this.test = test;
+	        this.consequent = consequent;
+	        this.alternate = alternate;
+	    }
+	    return ConditionalExpression;
+	}());
+	exports.ConditionalExpression = ConditionalExpression;
+	var ContinueStatement = (function () {
+	    function ContinueStatement(label) {
+	        this.type = syntax_1.Syntax.ContinueStatement;
+	        this.label = label;
+	    }
+	    return ContinueStatement;
+	}());
+	exports.ContinueStatement = ContinueStatement;
+	var DebuggerStatement = (function () {
+	    function DebuggerStatement() {
+	        this.type = syntax_1.Syntax.DebuggerStatement;
+	    }
+	    return DebuggerStatement;
+	}());
+	exports.DebuggerStatement = DebuggerStatement;
+	var Directive = (function () {
+	    function Directive(expression, directive) {
+	        this.type = syntax_1.Syntax.ExpressionStatement;
+	        this.expression = expression;
+	        this.directive = directive;
+	    }
+	    return Directive;
+	}());
+	exports.Directive = Directive;
+	var DoWhileStatement = (function () {
+	    function DoWhileStatement(body, test) {
+	        this.type = syntax_1.Syntax.DoWhileStatement;
+	        this.body = body;
+	        this.test = test;
+	    }
+	    return DoWhileStatement;
+	}());
+	exports.DoWhileStatement = DoWhileStatement;
+	var EmptyStatement = (function () {
+	    function EmptyStatement() {
+	        this.type = syntax_1.Syntax.EmptyStatement;
+	    }
+	    return EmptyStatement;
+	}());
+	exports.EmptyStatement = EmptyStatement;
+	var ExportAllDeclaration = (function () {
+	    function ExportAllDeclaration(source) {
+	        this.type = syntax_1.Syntax.ExportAllDeclaration;
+	        this.source = source;
+	    }
+	    return ExportAllDeclaration;
+	}());
+	exports.ExportAllDeclaration = ExportAllDeclaration;
+	var ExportDefaultDeclaration = (function () {
+	    function ExportDefaultDeclaration(declaration) {
+	        this.type = syntax_1.Syntax.ExportDefaultDeclaration;
+	        this.declaration = declaration;
+	    }
+	    return ExportDefaultDeclaration;
+	}());
+	exports.ExportDefaultDeclaration = ExportDefaultDeclaration;
+	var ExportNamedDeclaration = (function () {
+	    function ExportNamedDeclaration(declaration, specifiers, source) {
+	        this.type = syntax_1.Syntax.ExportNamedDeclaration;
+	        this.declaration = declaration;
+	        this.specifiers = specifiers;
+	        this.source = source;
+	    }
+	    return ExportNamedDeclaration;
+	}());
+	exports.ExportNamedDeclaration = ExportNamedDeclaration;
+	var ExportSpecifier = (function () {
+	    function ExportSpecifier(local, exported) {
+	        this.type = syntax_1.Syntax.ExportSpecifier;
+	        this.exported = exported;
+	        this.local = local;
+	    }
+	    return ExportSpecifier;
+	}());
+	exports.ExportSpecifier = ExportSpecifier;
+	var ExpressionStatement = (function () {
+	    function ExpressionStatement(expression) {
+	        this.type = syntax_1.Syntax.ExpressionStatement;
+	        this.expression = expression;
+	    }
+	    return ExpressionStatement;
+	}());
+	exports.ExpressionStatement = ExpressionStatement;
+	var ForInStatement = (function () {
+	    function ForInStatement(left, right, body) {
+	        this.type = syntax_1.Syntax.ForInStatement;
+	        this.left = left;
+	        this.right = right;
+	        this.body = body;
+	        this.each = false;
+	    }
+	    return ForInStatement;
+	}());
+	exports.ForInStatement = ForInStatement;
+	var ForOfStatement = (function () {
+	    function ForOfStatement(left, right, body) {
+	        this.type = syntax_1.Syntax.ForOfStatement;
+	        this.left = left;
+	        this.right = right;
+	        this.body = body;
+	    }
+	    return ForOfStatement;
+	}());
+	exports.ForOfStatement = ForOfStatement;
+	var ForStatement = (function () {
+	    function ForStatement(init, test, update, body) {
+	        this.type = syntax_1.Syntax.ForStatement;
+	        this.init = init;
+	        this.test = test;
+	        this.update = update;
+	        this.body = body;
+	    }
+	    return ForStatement;
+	}());
+	exports.ForStatement = ForStatement;
+	var FunctionDeclaration = (function () {
+	    function FunctionDeclaration(id, params, body, generator) {
+	        this.type = syntax_1.Syntax.FunctionDeclaration;
+	        this.id = id;
+	        this.params = params;
+	        this.body = body;
+	        this.generator = generator;
+	        this.expression = false;
+	        this.async = false;
+	    }
+	    return FunctionDeclaration;
+	}());
+	exports.FunctionDeclaration = FunctionDeclaration;
+	var FunctionExpression = (function () {
+	    function FunctionExpression(id, params, body, generator) {
+	        this.type = syntax_1.Syntax.FunctionExpression;
+	        this.id = id;
+	        this.params = params;
+	        this.body = body;
+	        this.generator = generator;
+	        this.expression = false;
+	        this.async = false;
+	    }
+	    return FunctionExpression;
+	}());
+	exports.FunctionExpression = FunctionExpression;
+	var Identifier = (function () {
+	    function Identifier(name) {
+	        this.type = syntax_1.Syntax.Identifier;
+	        this.name = name;
+	    }
+	    return Identifier;
+	}());
+	exports.Identifier = Identifier;
+	var IfStatement = (function () {
+	    function IfStatement(test, consequent, alternate) {
+	        this.type = syntax_1.Syntax.IfStatement;
+	        this.test = test;
+	        this.consequent = consequent;
+	        this.alternate = alternate;
+	    }
+	    return IfStatement;
+	}());
+	exports.IfStatement = IfStatement;
+	var ImportDeclaration = (function () {
+	    function ImportDeclaration(specifiers, source) {
+	        this.type = syntax_1.Syntax.ImportDeclaration;
+	        this.specifiers = specifiers;
+	        this.source = source;
+	    }
+	    return ImportDeclaration;
+	}());
+	exports.ImportDeclaration = ImportDeclaration;
+	var ImportDefaultSpecifier = (function () {
+	    function ImportDefaultSpecifier(local) {
+	        this.type = syntax_1.Syntax.ImportDefaultSpecifier;
+	        this.local = local;
+	    }
+	    return ImportDefaultSpecifier;
+	}());
+	exports.ImportDefaultSpecifier = ImportDefaultSpecifier;
+	var ImportNamespaceSpecifier = (function () {
+	    function ImportNamespaceSpecifier(local) {
+	        this.type = syntax_1.Syntax.ImportNamespaceSpecifier;
+	        this.local = local;
+	    }
+	    return ImportNamespaceSpecifier;
+	}());
+	exports.ImportNamespaceSpecifier = ImportNamespaceSpecifier;
+	var ImportSpecifier = (function () {
+	    function ImportSpecifier(local, imported) {
+	        this.type = syntax_1.Syntax.ImportSpecifier;
+	        this.local = local;
+	        this.imported = imported;
+	    }
+	    return ImportSpecifier;
+	}());
+	exports.ImportSpecifier = ImportSpecifier;
+	var LabeledStatement = (function () {
+	    function LabeledStatement(label, body) {
+	        this.type = syntax_1.Syntax.LabeledStatement;
+	        this.label = label;
+	        this.body = body;
+	    }
+	    return LabeledStatement;
+	}());
+	exports.LabeledStatement = LabeledStatement;
+	var Literal = (function () {
+	    function Literal(value, raw) {
+	        this.type = syntax_1.Syntax.Literal;
+	        this.value = value;
+	        this.raw = raw;
+	    }
+	    return Literal;
+	}());
+	exports.Literal = Literal;
+	var MetaProperty = (function () {
+	    function MetaProperty(meta, property) {
+	        this.type = syntax_1.Syntax.MetaProperty;
+	        this.meta = meta;
+	        this.property = property;
+	    }
+	    return MetaProperty;
+	}());
+	exports.MetaProperty = MetaProperty;
+	var MethodDefinition = (function () {
+	    function MethodDefinition(key, computed, value, kind, isStatic) {
+	        this.type = syntax_1.Syntax.MethodDefinition;
+	        this.key = key;
+	        this.computed = computed;
+	        this.value = value;
+	        this.kind = kind;
+	        this.static = isStatic;
+	    }
+	    return MethodDefinition;
+	}());
+	exports.MethodDefinition = MethodDefinition;
+	var Module = (function () {
+	    function Module(body) {
+	        this.type = syntax_1.Syntax.Program;
+	        this.body = body;
+	        this.sourceType = 'module';
+	    }
+	    return Module;
+	}());
+	exports.Module = Module;
+	var NewExpression = (function () {
+	    function NewExpression(callee, args) {
+	        this.type = syntax_1.Syntax.NewExpression;
+	        this.callee = callee;
+	        this.arguments = args;
+	    }
+	    return NewExpression;
+	}());
+	exports.NewExpression = NewExpression;
+	var ObjectExpression = (function () {
+	    function ObjectExpression(properties) {
+	        this.type = syntax_1.Syntax.ObjectExpression;
+	        this.properties = properties;
+	    }
+	    return ObjectExpression;
+	}());
+	exports.ObjectExpression = ObjectExpression;
+	var ObjectPattern = (function () {
+	    function ObjectPattern(properties) {
+	        this.type = syntax_1.Syntax.ObjectPattern;
+	        this.properties = properties;
+	    }
+	    return ObjectPattern;
+	}());
+	exports.ObjectPattern = ObjectPattern;
+	var Property = (function () {
+	    function Property(kind, key, computed, value, method, shorthand) {
+	        this.type = syntax_1.Syntax.Property;
+	        this.key = key;
+	        this.computed = computed;
+	        this.value = value;
+	        this.kind = kind;
+	        this.method = method;
+	        this.shorthand = shorthand;
+	    }
+	    return Property;
+	}());
+	exports.Property = Property;
+	var RegexLiteral = (function () {
+	    function RegexLiteral(value, raw, pattern, flags) {
+	        this.type = syntax_1.Syntax.Literal;
+	        this.value = value;
+	        this.raw = raw;
+	        this.regex = { pattern: pattern, flags: flags };
+	    }
+	    return RegexLiteral;
+	}());
+	exports.RegexLiteral = RegexLiteral;
+	var RestElement = (function () {
+	    function RestElement(argument) {
+	        this.type = syntax_1.Syntax.RestElement;
+	        this.argument = argument;
+	    }
+	    return RestElement;
+	}());
+	exports.RestElement = RestElement;
+	var ReturnStatement = (function () {
+	    function ReturnStatement(argument) {
+	        this.type = syntax_1.Syntax.ReturnStatement;
+	        this.argument = argument;
+	    }
+	    return ReturnStatement;
+	}());
+	exports.ReturnStatement = ReturnStatement;
+	var Script = (function () {
+	    function Script(body) {
+	        this.type = syntax_1.Syntax.Program;
+	        this.body = body;
+	        this.sourceType = 'script';
+	    }
+	    return Script;
+	}());
+	exports.Script = Script;
+	var SequenceExpression = (function () {
+	    function SequenceExpression(expressions) {
+	        this.type = syntax_1.Syntax.SequenceExpression;
+	        this.expressions = expressions;
+	    }
+	    return SequenceExpression;
+	}());
+	exports.SequenceExpression = SequenceExpression;
+	var SpreadElement = (function () {
+	    function SpreadElement(argument) {
+	        this.type = syntax_1.Syntax.SpreadElement;
+	        this.argument = argument;
+	    }
+	    return SpreadElement;
+	}());
+	exports.SpreadElement = SpreadElement;
+	var StaticMemberExpression = (function () {
+	    function StaticMemberExpression(object, property) {
+	        this.type = syntax_1.Syntax.MemberExpression;
+	        this.computed = false;
+	        this.object = object;
+	        this.property = property;
+	    }
+	    return StaticMemberExpression;
+	}());
+	exports.StaticMemberExpression = StaticMemberExpression;
+	var Super = (function () {
+	    function Super() {
+	        this.type = syntax_1.Syntax.Super;
+	    }
+	    return Super;
+	}());
+	exports.Super = Super;
+	var SwitchCase = (function () {
+	    function SwitchCase(test, consequent) {
+	        this.type = syntax_1.Syntax.SwitchCase;
+	        this.test = test;
+	        this.consequent = consequent;
+	    }
+	    return SwitchCase;
+	}());
+	exports.SwitchCase = SwitchCase;
+	var SwitchStatement = (function () {
+	    function SwitchStatement(discriminant, cases) {
+	        this.type = syntax_1.Syntax.SwitchStatement;
+	        this.discriminant = discriminant;
+	        this.cases = cases;
+	    }
+	    return SwitchStatement;
+	}());
+	exports.SwitchStatement = SwitchStatement;
+	var TaggedTemplateExpression = (function () {
+	    function TaggedTemplateExpression(tag, quasi) {
+	        this.type = syntax_1.Syntax.TaggedTemplateExpression;
+	        this.tag = tag;
+	        this.quasi = quasi;
+	    }
+	    return TaggedTemplateExpression;
+	}());
+	exports.TaggedTemplateExpression = TaggedTemplateExpression;
+	var TemplateElement = (function () {
+	    function TemplateElement(value, tail) {
+	        this.type = syntax_1.Syntax.TemplateElement;
+	        this.value = value;
+	        this.tail = tail;
+	    }
+	    return TemplateElement;
+	}());
+	exports.TemplateElement = TemplateElement;
+	var TemplateLiteral = (function () {
+	    function TemplateLiteral(quasis, expressions) {
+	        this.type = syntax_1.Syntax.TemplateLiteral;
+	        this.quasis = quasis;
+	        this.expressions = expressions;
+	    }
+	    return TemplateLiteral;
+	}());
+	exports.TemplateLiteral = TemplateLiteral;
+	var ThisExpression = (function () {
+	    function ThisExpression() {
+	        this.type = syntax_1.Syntax.ThisExpression;
+	    }
+	    return ThisExpression;
+	}());
+	exports.ThisExpression = ThisExpression;
+	var ThrowStatement = (function () {
+	    function ThrowStatement(argument) {
+	        this.type = syntax_1.Syntax.ThrowStatement;
+	        this.argument = argument;
+	    }
+	    return ThrowStatement;
+	}());
+	exports.ThrowStatement = ThrowStatement;
+	var TryStatement = (function () {
+	    function TryStatement(block, handler, finalizer) {
+	        this.type = syntax_1.Syntax.TryStatement;
+	        this.block = block;
+	        this.handler = handler;
+	        this.finalizer = finalizer;
+	    }
+	    return TryStatement;
+	}());
+	exports.TryStatement = TryStatement;
+	var UnaryExpression = (function () {
+	    function UnaryExpression(operator, argument) {
+	        this.type = syntax_1.Syntax.UnaryExpression;
+	        this.operator = operator;
+	        this.argument = argument;
+	        this.prefix = true;
+	    }
+	    return UnaryExpression;
+	}());
+	exports.UnaryExpression = UnaryExpression;
+	var UpdateExpression = (function () {
+	    function UpdateExpression(operator, argument, prefix) {
+	        this.type = syntax_1.Syntax.UpdateExpression;
+	        this.operator = operator;
+	        this.argument = argument;
+	        this.prefix = prefix;
+	    }
+	    return UpdateExpression;
+	}());
+	exports.UpdateExpression = UpdateExpression;
+	var VariableDeclaration = (function () {
+	    function VariableDeclaration(declarations, kind) {
+	        this.type = syntax_1.Syntax.VariableDeclaration;
+	        this.declarations = declarations;
+	        this.kind = kind;
+	    }
+	    return VariableDeclaration;
+	}());
+	exports.VariableDeclaration = VariableDeclaration;
+	var VariableDeclarator = (function () {
+	    function VariableDeclarator(id, init) {
+	        this.type = syntax_1.Syntax.VariableDeclarator;
+	        this.id = id;
+	        this.init = init;
+	    }
+	    return VariableDeclarator;
+	}());
+	exports.VariableDeclarator = VariableDeclarator;
+	var WhileStatement = (function () {
+	    function WhileStatement(test, body) {
+	        this.type = syntax_1.Syntax.WhileStatement;
+	        this.test = test;
+	        this.body = body;
+	    }
+	    return WhileStatement;
+	}());
+	exports.WhileStatement = WhileStatement;
+	var WithStatement = (function () {
+	    function WithStatement(object, body) {
+	        this.type = syntax_1.Syntax.WithStatement;
+	        this.object = object;
+	        this.body = body;
+	    }
+	    return WithStatement;
+	}());
+	exports.WithStatement = WithStatement;
+	var YieldExpression = (function () {
+	    function YieldExpression(argument, delegate) {
+	        this.type = syntax_1.Syntax.YieldExpression;
+	        this.argument = argument;
+	        this.delegate = delegate;
+	    }
+	    return YieldExpression;
+	}());
+	exports.YieldExpression = YieldExpression;
+
+
+/***/ },
+/* 8 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+	Object.defineProperty(exports, "__esModule", { value: true });
+	var assert_1 = __webpack_require__(9);
+	var error_handler_1 = __webpack_require__(10);
+	var messages_1 = __webpack_require__(11);
+	var Node = __webpack_require__(7);
+	var scanner_1 = __webpack_require__(12);
+	var syntax_1 = __webpack_require__(2);
+	var token_1 = __webpack_require__(13);
+	var ArrowParameterPlaceHolder = 'ArrowParameterPlaceHolder';
+	var Parser = (function () {
+	    function Parser(code, options, delegate) {
+	        if (options === void 0) { options = {}; }
+	        this.config = {
+	            range: (typeof options.range === 'boolean') && options.range,
+	            loc: (typeof options.loc === 'boolean') && options.loc,
+	            source: null,
+	            tokens: (typeof options.tokens === 'boolean') && options.tokens,
+	            comment: (typeof options.comment === 'boolean') && options.comment,
+	            tolerant: (typeof options.tolerant === 'boolean') && options.tolerant
+	        };
+	        if (this.config.loc && options.source && options.source !== null) {
+	            this.config.source = String(options.source);
+	        }
+	        this.delegate = delegate;
+	        this.errorHandler = new error_handler_1.ErrorHandler();
+	        this.errorHandler.tolerant = this.config.tolerant;
+	        this.scanner = new scanner_1.Scanner(code, this.errorHandler);
+	        this.scanner.trackComment = this.config.comment;
+	        this.operatorPrecedence = {
+	            ')': 0,
+	            ';': 0,
+	            ',': 0,
+	            '=': 0,
+	            ']': 0,
+	            '||': 1,
+	            '&&': 2,
+	            '|': 3,
+	            '^': 4,
+	            '&': 5,
+	            '==': 6,
+	            '!=': 6,
+	            '===': 6,
+	            '!==': 6,
+	            '<': 7,
+	            '>': 7,
+	            '<=': 7,
+	            '>=': 7,
+	            '<<': 8,
+	            '>>': 8,
+	            '>>>': 8,
+	            '+': 9,
+	            '-': 9,
+	            '*': 11,
+	            '/': 11,
+	            '%': 11
+	        };
+	        this.lookahead = {
+	            type: 2 /* EOF */,
+	            value: '',
+	            lineNumber: this.scanner.lineNumber,
+	            lineStart: 0,
+	            start: 0,
+	            end: 0
+	        };
+	        this.hasLineTerminator = false;
+	        this.context = {
+	            isModule: false,
+	            await: false,
+	            allowIn: true,
+	            allowStrictDirective: true,
+	            allowYield: true,
+	            firstCoverInitializedNameError: null,
+	            isAssignmentTarget: false,
+	            isBindingElement: false,
+	            inFunctionBody: false,
+	            inIteration: false,
+	            inSwitch: false,
+	            labelSet: {},
+	            strict: false
+	        };
+	        this.tokens = [];
+	        this.startMarker = {
+	            index: 0,
+	            line: this.scanner.lineNumber,
+	            column: 0
+	        };
+	        this.lastMarker = {
+	            index: 0,
+	            line: this.scanner.lineNumber,
+	            column: 0
+	        };
+	        this.nextToken();
+	        this.lastMarker = {
+	            index: this.scanner.index,
+	            line: this.scanner.lineNumber,
+	            column: this.scanner.index - this.scanner.lineStart
+	        };
+	    }
+	    Parser.prototype.throwError = function (messageFormat) {
+	        var values = [];
+	        for (var _i = 1; _i < arguments.length; _i++) {
+	            values[_i - 1] = arguments[_i];
+	        }
+	        var args = Array.prototype.slice.call(arguments, 1);
+	        var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) {
+	            assert_1.assert(idx < args.length, 'Message reference must be in range');
+	            return args[idx];
+	        });
+	        var index = this.lastMarker.index;
+	        var line = this.lastMarker.line;
+	        var column = this.lastMarker.column + 1;
+	        throw this.errorHandler.createError(index, line, column, msg);
+	    };
+	    Parser.prototype.tolerateError = function (messageFormat) {
+	        var values = [];
+	        for (var _i = 1; _i < arguments.length; _i++) {
+	            values[_i - 1] = arguments[_i];
+	        }
+	        var args = Array.prototype.slice.call(arguments, 1);
+	        var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) {
+	            assert_1.assert(idx < args.length, 'Message reference must be in range');
+	            return args[idx];
+	        });
+	        var index = this.lastMarker.index;
+	        var line = this.scanner.lineNumber;
+	        var column = this.lastMarker.column + 1;
+	        this.errorHandler.tolerateError(index, line, column, msg);
+	    };
+	    // Throw an exception because of the token.
+	    Parser.prototype.unexpectedTokenError = function (token, message) {
+	        var msg = message || messages_1.Messages.UnexpectedToken;
+	        var value;
+	        if (token) {
+	            if (!message) {
+	                msg = (token.type === 2 /* EOF */) ? messages_1.Messages.UnexpectedEOS :
+	                    (token.type === 3 /* Identifier */) ? messages_1.Messages.UnexpectedIdentifier :
+	                        (token.type === 6 /* NumericLiteral */) ? messages_1.Messages.UnexpectedNumber :
+	                            (token.type === 8 /* StringLiteral */) ? messages_1.Messages.UnexpectedString :
+	                                (token.type === 10 /* Template */) ? messages_1.Messages.UnexpectedTemplate :
+	                                    messages_1.Messages.UnexpectedToken;
+	                if (token.type === 4 /* Keyword */) {
+	                    if (this.scanner.isFutureReservedWord(token.value)) {
+	                        msg = messages_1.Messages.UnexpectedReserved;
+	                    }
+	                    else if (this.context.strict && this.scanner.isStrictModeReservedWord(token.value)) {
+	                        msg = messages_1.Messages.StrictReservedWord;
+	                    }
+	                }
+	            }
+	            value = token.value;
+	        }
+	        else {
+	            value = 'ILLEGAL';
+	        }
+	        msg = msg.replace('%0', value);
+	        if (token && typeof token.lineNumber === 'number') {
+	            var index = token.start;
+	            var line = token.lineNumber;
+	            var lastMarkerLineStart = this.lastMarker.index - this.lastMarker.column;
+	            var column = token.start - lastMarkerLineStart + 1;
+	            return this.errorHandler.createError(index, line, column, msg);
+	        }
+	        else {
+	            var index = this.lastMarker.index;
+	            var line = this.lastMarker.line;
+	            var column = this.lastMarker.column + 1;
+	            return this.errorHandler.createError(index, line, column, msg);
+	        }
+	    };
+	    Parser.prototype.throwUnexpectedToken = function (token, message) {
+	        throw this.unexpectedTokenError(token, message);
+	    };
+	    Parser.prototype.tolerateUnexpectedToken = function (token, message) {
+	        this.errorHandler.tolerate(this.unexpectedTokenError(token, message));
+	    };
+	    Parser.prototype.collectComments = function () {
+	        if (!this.config.comment) {
+	            this.scanner.scanComments();
+	        }
+	        else {
+	            var comments = this.scanner.scanComments();
+	            if (comments.length > 0 && this.delegate) {
+	                for (var i = 0; i < comments.length; ++i) {
+	                    var e = comments[i];
+	                    var node = void 0;
+	                    node = {
+	                        type: e.multiLine ? 'BlockComment' : 'LineComment',
+	                        value: this.scanner.source.slice(e.slice[0], e.slice[1])
+	                    };
+	                    if (this.config.range) {
+	                        node.range = e.range;
+	                    }
+	                    if (this.config.loc) {
+	                        node.loc = e.loc;
+	                    }
+	                    var metadata = {
+	                        start: {
+	                            line: e.loc.start.line,
+	                            column: e.loc.start.column,
+	                            offset: e.range[0]
+	                        },
+	                        end: {
+	                            line: e.loc.end.line,
+	                            column: e.loc.end.column,
+	                            offset: e.range[1]
+	                        }
+	                    };
+	                    this.delegate(node, metadata);
+	                }
+	            }
+	        }
+	    };
+	    // From internal representation to an external structure
+	    Parser.prototype.getTokenRaw = function (token) {
+	        return this.scanner.source.slice(token.start, token.end);
+	    };
+	    Parser.prototype.convertToken = function (token) {
+	        var t = {
+	            type: token_1.TokenName[token.type],
+	            value: this.getTokenRaw(token)
+	        };
+	        if (this.config.range) {
+	            t.range = [token.start, token.end];
+	        }
+	        if (this.config.loc) {
+	            t.loc = {
+	                start: {
+	                    line: this.startMarker.line,
+	                    column: this.startMarker.column
+	                },
+	                end: {
+	                    line: this.scanner.lineNumber,
+	                    column: this.scanner.index - this.scanner.lineStart
+	                }
+	            };
+	        }
+	        if (token.type === 9 /* RegularExpression */) {
+	            var pattern = token.pattern;
+	            var flags = token.flags;
+	            t.regex = { pattern: pattern, flags: flags };
+	        }
+	        return t;
+	    };
+	    Parser.prototype.nextToken = function () {
+	        var token = this.lookahead;
+	        this.lastMarker.index = this.scanner.index;
+	        this.lastMarker.line = this.scanner.lineNumber;
+	        this.lastMarker.column = this.scanner.index - this.scanner.lineStart;
+	        this.collectComments();
+	        if (this.scanner.index !== this.startMarker.index) {
+	            this.startMarker.index = this.scanner.index;
+	            this.startMarker.line = this.scanner.lineNumber;
+	            this.startMarker.column = this.scanner.index - this.scanner.lineStart;
+	        }
+	        var next = this.scanner.lex();
+	        this.hasLineTerminator = (token.lineNumber !== next.lineNumber);
+	        if (next && this.context.strict && next.type === 3 /* Identifier */) {
+	            if (this.scanner.isStrictModeReservedWord(next.value)) {
+	                next.type = 4 /* Keyword */;
+	            }
+	        }
+	        this.lookahead = next;
+	        if (this.config.tokens && next.type !== 2 /* EOF */) {
+	            this.tokens.push(this.convertToken(next));
+	        }
+	        return token;
+	    };
+	    Parser.prototype.nextRegexToken = function () {
+	        this.collectComments();
+	        var token = this.scanner.scanRegExp();
+	        if (this.config.tokens) {
+	            // Pop the previous token, '/' or '/='
+	            // This is added from the lookahead token.
+	            this.tokens.pop();
+	            this.tokens.push(this.convertToken(token));
+	        }
+	        // Prime the next lookahead.
+	        this.lookahead = token;
+	        this.nextToken();
+	        return token;
+	    };
+	    Parser.prototype.createNode = function () {
+	        return {
+	            index: this.startMarker.index,
+	            line: this.startMarker.line,
+	            column: this.startMarker.column
+	        };
+	    };
+	    Parser.prototype.startNode = function (token, lastLineStart) {
+	        if (lastLineStart === void 0) { lastLineStart = 0; }
+	        var column = token.start - token.lineStart;
+	        var line = token.lineNumber;
+	        if (column < 0) {
+	            column += lastLineStart;
+	            line--;
+	        }
+	        return {
+	            index: token.start,
+	            line: line,
+	            column: column
+	        };
+	    };
+	    Parser.prototype.finalize = function (marker, node) {
+	        if (this.config.range) {
+	            node.range = [marker.index, this.lastMarker.index];
+	        }
+	        if (this.config.loc) {
+	            node.loc = {
+	                start: {
+	                    line: marker.line,
+	                    column: marker.column,
+	                },
+	                end: {
+	                    line: this.lastMarker.line,
+	                    column: this.lastMarker.column
+	                }
+	            };
+	            if (this.config.source) {
+	                node.loc.source = this.config.source;
+	            }
+	        }
+	        if (this.delegate) {
+	            var metadata = {
+	                start: {
+	                    line: marker.line,
+	                    column: marker.column,
+	                    offset: marker.index
+	                },
+	                end: {
+	                    line: this.lastMarker.line,
+	                    column: this.lastMarker.column,
+	                    offset: this.lastMarker.index
+	                }
+	            };
+	            this.delegate(node, metadata);
+	        }
+	        return node;
+	    };
+	    // Expect the next token to match the specified punctuator.
+	    // If not, an exception will be thrown.
+	    Parser.prototype.expect = function (value) {
+	        var token = this.nextToken();
+	        if (token.type !== 7 /* Punctuator */ || token.value !== value) {
+	            this.throwUnexpectedToken(token);
+	        }
+	    };
+	    // Quietly expect a comma when in tolerant mode, otherwise delegates to expect().
+	    Parser.prototype.expectCommaSeparator = function () {
+	        if (this.config.tolerant) {
+	            var token = this.lookahead;
+	            if (token.type === 7 /* Punctuator */ && token.value === ',') {
+	                this.nextToken();
+	            }
+	            else if (token.type === 7 /* Punctuator */ && token.value === ';') {
+	                this.nextToken();
+	                this.tolerateUnexpectedToken(token);
+	            }
+	            else {
+	                this.tolerateUnexpectedToken(token, messages_1.Messages.UnexpectedToken);
+	            }
+	        }
+	        else {
+	            this.expect(',');
+	        }
+	    };
+	    // Expect the next token to match the specified keyword.
+	    // If not, an exception will be thrown.
+	    Parser.prototype.expectKeyword = function (keyword) {
+	        var token = this.nextToken();
+	        if (token.type !== 4 /* Keyword */ || token.value !== keyword) {
+	            this.throwUnexpectedToken(token);
+	        }
+	    };
+	    // Return true if the next token matches the specified punctuator.
+	    Parser.prototype.match = function (value) {
+	        return this.lookahead.type === 7 /* Punctuator */ && this.lookahead.value === value;
+	    };
+	    // Return true if the next token matches the specified keyword
+	    Parser.prototype.matchKeyword = function (keyword) {
+	        return this.lookahead.type === 4 /* Keyword */ && this.lookahead.value === keyword;
+	    };
+	    // Return true if the next token matches the specified contextual keyword
+	    // (where an identifier is sometimes a keyword depending on the context)
+	    Parser.prototype.matchContextualKeyword = function (keyword) {
+	        return this.lookahead.type === 3 /* Identifier */ && this.lookahead.value === keyword;
+	    };
+	    // Return true if the next token is an assignment operator
+	    Parser.prototype.matchAssign = function () {
+	        if (this.lookahead.type !== 7 /* Punctuator */) {
+	            return false;
+	        }
+	        var op = this.lookahead.value;
+	        return op === '=' ||
+	            op === '*=' ||
+	            op === '**=' ||
+	            op === '/=' ||
+	            op === '%=' ||
+	            op === '+=' ||
+	            op === '-=' ||
+	            op === '<<=' ||
+	            op === '>>=' ||
+	            op === '>>>=' ||
+	            op === '&=' ||
+	            op === '^=' ||
+	            op === '|=';
+	    };
+	    // Cover grammar support.
+	    //
+	    // When an assignment expression position starts with an left parenthesis, the determination of the type
+	    // of the syntax is to be deferred arbitrarily long until the end of the parentheses pair (plus a lookahead)
+	    // or the first comma. This situation also defers the determination of all the expressions nested in the pair.
+	    //
+	    // There are three productions that can be parsed in a parentheses pair that needs to be determined
+	    // after the outermost pair is closed. They are:
+	    //
+	    //   1. AssignmentExpression
+	    //   2. BindingElements
+	    //   3. AssignmentTargets
+	    //
+	    // In order to avoid exponential backtracking, we use two flags to denote if the production can be
+	    // binding element or assignment target.
+	    //
+	    // The three productions have the relationship:
+	    //
+	    //   BindingElements ⊆ AssignmentTargets ⊆ AssignmentExpression
+	    //
+	    // with a single exception that CoverInitializedName when used directly in an Expression, generates
+	    // an early error. Therefore, we need the third state, firstCoverInitializedNameError, to track the
+	    // first usage of CoverInitializedName and report it when we reached the end of the parentheses pair.
+	    //
+	    // isolateCoverGrammar function runs the given parser function with a new cover grammar context, and it does not
+	    // effect the current flags. This means the production the parser parses is only used as an expression. Therefore
+	    // the CoverInitializedName check is conducted.
+	    //
+	    // inheritCoverGrammar function runs the given parse function with a new cover grammar context, and it propagates
+	    // the flags outside of the parser. This means the production the parser parses is used as a part of a potential
+	    // pattern. The CoverInitializedName check is deferred.
+	    Parser.prototype.isolateCoverGrammar = function (parseFunction) {
+	        var previousIsBindingElement = this.context.isBindingElement;
+	        var previousIsAssignmentTarget = this.context.isAssignmentTarget;
+	        var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError;
+	        this.context.isBindingElement = true;
+	        this.context.isAssignmentTarget = true;
+	        this.context.firstCoverInitializedNameError = null;
+	        var result = parseFunction.call(this);
+	        if (this.context.firstCoverInitializedNameError !== null) {
+	            this.throwUnexpectedToken(this.context.firstCoverInitializedNameError);
+	        }
+	        this.context.isBindingElement = previousIsBindingElement;
+	        this.context.isAssignmentTarget = previousIsAssignmentTarget;
+	        this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError;
+	        return result;
+	    };
+	    Parser.prototype.inheritCoverGrammar = function (parseFunction) {
+	        var previousIsBindingElement = this.context.isBindingElement;
+	        var previousIsAssignmentTarget = this.context.isAssignmentTarget;
+	        var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError;
+	        this.context.isBindingElement = true;
+	        this.context.isAssignmentTarget = true;
+	        this.context.firstCoverInitializedNameError = null;
+	        var result = parseFunction.call(this);
+	        this.context.isBindingElement = this.context.isBindingElement && previousIsBindingElement;
+	        this.context.isAssignmentTarget = this.context.isAssignmentTarget && previousIsAssignmentTarget;
+	        this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError || this.context.firstCoverInitializedNameError;
+	        return result;
+	    };
+	    Parser.prototype.consumeSemicolon = function () {
+	        if (this.match(';')) {
+	            this.nextToken();
+	        }
+	        else if (!this.hasLineTerminator) {
+	            if (this.lookahead.type !== 2 /* EOF */ && !this.match('}')) {
+	                this.throwUnexpectedToken(this.lookahead);
+	            }
+	            this.lastMarker.index = this.startMarker.index;
+	            this.lastMarker.line = this.startMarker.line;
+	            this.lastMarker.column = this.startMarker.column;
+	        }
+	    };
+	    // https://tc39.github.io/ecma262/#sec-primary-expression
+	    Parser.prototype.parsePrimaryExpression = function () {
+	        var node = this.createNode();
+	        var expr;
+	        var token, raw;
+	        switch (this.lookahead.type) {
+	            case 3 /* Identifier */:
+	                if ((this.context.isModule || this.context.await) && this.lookahead.value === 'await') {
+	                    this.tolerateUnexpectedToken(this.lookahead);
+	                }
+	                expr = this.matchAsyncFunction() ? this.parseFunctionExpression() : this.finalize(node, new Node.Identifier(this.nextToken().value));
+	                break;
+	            case 6 /* NumericLiteral */:
+	            case 8 /* StringLiteral */:
+	                if (this.context.strict && this.lookahead.octal) {
+	                    this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.StrictOctalLiteral);
+	                }
+	                this.context.isAssignmentTarget = false;
+	                this.context.isBindingElement = false;
+	                token = this.nextToken();
+	                raw = this.getTokenRaw(token);
+	                expr = this.finalize(node, new Node.Literal(token.value, raw));
+	                break;
+	            case 1 /* BooleanLiteral */:
+	                this.context.isAssignmentTarget = false;
+	                this.context.isBindingElement = false;
+	                token = this.nextToken();
+	                raw = this.getTokenRaw(token);
+	                expr = this.finalize(node, new Node.Literal(token.value === 'true', raw));
+	                break;
+	            case 5 /* NullLiteral */:
+	                this.context.isAssignmentTarget = false;
+	                this.context.isBindingElement = false;
+	                token = this.nextToken();
+	                raw = this.getTokenRaw(token);
+	                expr = this.finalize(node, new Node.Literal(null, raw));
+	                break;
+	            case 10 /* Template */:
+	                expr = this.parseTemplateLiteral();
+	                break;
+	            case 7 /* Punctuator */:
+	                switch (this.lookahead.value) {
+	                    case '(':
+	                        this.context.isBindingElement = false;
+	                        expr = this.inheritCoverGrammar(this.parseGroupExpression);
+	                        break;
+	                    case '[':
+	                        expr = this.inheritCoverGrammar(this.parseArrayInitializer);
+	                        break;
+	                    case '{':
+	                        expr = this.inheritCoverGrammar(this.parseObjectInitializer);
+	                        break;
+	                    case '/':
+	                    case '/=':
+	                        this.context.isAssignmentTarget = false;
+	                        this.context.isBindingElement = false;
+	                        this.scanner.index = this.startMarker.index;
+	                        token = this.nextRegexToken();
+	                        raw = this.getTokenRaw(token);
+	                        expr = this.finalize(node, new Node.RegexLiteral(token.regex, raw, token.pattern, token.flags));
+	                        break;
+	                    default:
+	                        expr = this.throwUnexpectedToken(this.nextToken());
+	                }
+	                break;
+	            case 4 /* Keyword */:
+	                if (!this.context.strict && this.context.allowYield && this.matchKeyword('yield')) {
+	                    expr = this.parseIdentifierName();
+	                }
+	                else if (!this.context.strict && this.matchKeyword('let')) {
+	                    expr = this.finalize(node, new Node.Identifier(this.nextToken().value));
+	                }
+	                else {
+	                    this.context.isAssignmentTarget = false;
+	                    this.context.isBindingElement = false;
+	                    if (this.matchKeyword('function')) {
+	                        expr = this.parseFunctionExpression();
+	                    }
+	                    else if (this.matchKeyword('this')) {
+	                        this.nextToken();
+	                        expr = this.finalize(node, new Node.ThisExpression());
+	                    }
+	                    else if (this.matchKeyword('class')) {
+	                        expr = this.parseClassExpression();
+	                    }
+	                    else {
+	                        expr = this.throwUnexpectedToken(this.nextToken());
+	                    }
+	                }
+	                break;
+	            default:
+	                expr = this.throwUnexpectedToken(this.nextToken());
+	        }
+	        return expr;
+	    };
+	    // https://tc39.github.io/ecma262/#sec-array-initializer
+	    Parser.prototype.parseSpreadElement = function () {
+	        var node = this.createNode();
+	        this.expect('...');
+	        var arg = this.inheritCoverGrammar(this.parseAssignmentExpression);
+	        return this.finalize(node, new Node.SpreadElement(arg));
+	    };
+	    Parser.prototype.parseArrayInitializer = function () {
+	        var node = this.createNode();
+	        var elements = [];
+	        this.expect('[');
+	        while (!this.match(']')) {
+	            if (this.match(',')) {
+	                this.nextToken();
+	                elements.push(null);
+	            }
+	            else if (this.match('...')) {
+	                var element = this.parseSpreadElement();
+	                if (!this.match(']')) {
+	                    this.context.isAssignmentTarget = false;
+	                    this.context.isBindingElement = false;
+	                    this.expect(',');
+	                }
+	                elements.push(element);
+	            }
+	            else {
+	                elements.push(this.inheritCoverGrammar(this.parseAssignmentExpression));
+	                if (!this.match(']')) {
+	                    this.expect(',');
+	                }
+	            }
+	        }
+	        this.expect(']');
+	        return this.finalize(node, new Node.ArrayExpression(elements));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-object-initializer
+	    Parser.prototype.parsePropertyMethod = function (params) {
+	        this.context.isAssignmentTarget = false;
+	        this.context.isBindingElement = false;
+	        var previousStrict = this.context.strict;
+	        var previousAllowStrictDirective = this.context.allowStrictDirective;
+	        this.context.allowStrictDirective = params.simple;
+	        var body = this.isolateCoverGrammar(this.parseFunctionSourceElements);
+	        if (this.context.strict && params.firstRestricted) {
+	            this.tolerateUnexpectedToken(params.firstRestricted, params.message);
+	        }
+	        if (this.context.strict && params.stricted) {
+	            this.tolerateUnexpectedToken(params.stricted, params.message);
+	        }
+	        this.context.strict = previousStrict;
+	        this.context.allowStrictDirective = previousAllowStrictDirective;
+	        return body;
+	    };
+	    Parser.prototype.parsePropertyMethodFunction = function () {
+	        var isGenerator = false;
+	        var node = this.createNode();
+	        var previousAllowYield = this.context.allowYield;
+	        this.context.allowYield = true;
+	        var params = this.parseFormalParameters();
+	        var method = this.parsePropertyMethod(params);
+	        this.context.allowYield = previousAllowYield;
+	        return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator));
+	    };
+	    Parser.prototype.parsePropertyMethodAsyncFunction = function () {
+	        var node = this.createNode();
+	        var previousAllowYield = this.context.allowYield;
+	        var previousAwait = this.context.await;
+	        this.context.allowYield = false;
+	        this.context.await = true;
+	        var params = this.parseFormalParameters();
+	        var method = this.parsePropertyMethod(params);
+	        this.context.allowYield = previousAllowYield;
+	        this.context.await = previousAwait;
+	        return this.finalize(node, new Node.AsyncFunctionExpression(null, params.params, method));
+	    };
+	    Parser.prototype.parseObjectPropertyKey = function () {
+	        var node = this.createNode();
+	        var token = this.nextToken();
+	        var key;
+	        switch (token.type) {
+	            case 8 /* StringLiteral */:
+	            case 6 /* NumericLiteral */:
+	                if (this.context.strict && token.octal) {
+	                    this.tolerateUnexpectedToken(token, messages_1.Messages.StrictOctalLiteral);
+	                }
+	                var raw = this.getTokenRaw(token);
+	                key = this.finalize(node, new Node.Literal(token.value, raw));
+	                break;
+	            case 3 /* Identifier */:
+	            case 1 /* BooleanLiteral */:
+	            case 5 /* NullLiteral */:
+	            case 4 /* Keyword */:
+	                key = this.finalize(node, new Node.Identifier(token.value));
+	                break;
+	            case 7 /* Punctuator */:
+	                if (token.value === '[') {
+	                    key = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	                    this.expect(']');
+	                }
+	                else {
+	                    key = this.throwUnexpectedToken(token);
+	                }
+	                break;
+	            default:
+	                key = this.throwUnexpectedToken(token);
+	        }
+	        return key;
+	    };
+	    Parser.prototype.isPropertyKey = function (key, value) {
+	        return (key.type === syntax_1.Syntax.Identifier && key.name === value) ||
+	            (key.type === syntax_1.Syntax.Literal && key.value === value);
+	    };
+	    Parser.prototype.parseObjectProperty = function (hasProto) {
+	        var node = this.createNode();
+	        var token = this.lookahead;
+	        var kind;
+	        var key = null;
+	        var value = null;
+	        var computed = false;
+	        var method = false;
+	        var shorthand = false;
+	        var isAsync = false;
+	        if (token.type === 3 /* Identifier */) {
+	            var id = token.value;
+	            this.nextToken();
+	            computed = this.match('[');
+	            isAsync = !this.hasLineTerminator && (id === 'async') &&
+	                !this.match(':') && !this.match('(') && !this.match('*') && !this.match(',');
+	            key = isAsync ? this.parseObjectPropertyKey() : this.finalize(node, new Node.Identifier(id));
+	        }
+	        else if (this.match('*')) {
+	            this.nextToken();
+	        }
+	        else {
+	            computed = this.match('[');
+	            key = this.parseObjectPropertyKey();
+	        }
+	        var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead);
+	        if (token.type === 3 /* Identifier */ && !isAsync && token.value === 'get' && lookaheadPropertyKey) {
+	            kind = 'get';
+	            computed = this.match('[');
+	            key = this.parseObjectPropertyKey();
+	            this.context.allowYield = false;
+	            value = this.parseGetterMethod();
+	        }
+	        else if (token.type === 3 /* Identifier */ && !isAsync && token.value === 'set' && lookaheadPropertyKey) {
+	            kind = 'set';
+	            computed = this.match('[');
+	            key = this.parseObjectPropertyKey();
+	            value = this.parseSetterMethod();
+	        }
+	        else if (token.type === 7 /* Punctuator */ && token.value === '*' && lookaheadPropertyKey) {
+	            kind = 'init';
+	            computed = this.match('[');
+	            key = this.parseObjectPropertyKey();
+	            value = this.parseGeneratorMethod();
+	            method = true;
+	        }
+	        else {
+	            if (!key) {
+	                this.throwUnexpectedToken(this.lookahead);
+	            }
+	            kind = 'init';
+	            if (this.match(':') && !isAsync) {
+	                if (!computed && this.isPropertyKey(key, '__proto__')) {
+	                    if (hasProto.value) {
+	                        this.tolerateError(messages_1.Messages.DuplicateProtoProperty);
+	                    }
+	                    hasProto.value = true;
+	                }
+	                this.nextToken();
+	                value = this.inheritCoverGrammar(this.parseAssignmentExpression);
+	            }
+	            else if (this.match('(')) {
+	                value = isAsync ? this.parsePropertyMethodAsyncFunction() : this.parsePropertyMethodFunction();
+	                method = true;
+	            }
+	            else if (token.type === 3 /* Identifier */) {
+	                var id = this.finalize(node, new Node.Identifier(token.value));
+	                if (this.match('=')) {
+	                    this.context.firstCoverInitializedNameError = this.lookahead;
+	                    this.nextToken();
+	                    shorthand = true;
+	                    var init = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	                    value = this.finalize(node, new Node.AssignmentPattern(id, init));
+	                }
+	                else {
+	                    shorthand = true;
+	                    value = id;
+	                }
+	            }
+	            else {
+	                this.throwUnexpectedToken(this.nextToken());
+	            }
+	        }
+	        return this.finalize(node, new Node.Property(kind, key, computed, value, method, shorthand));
+	    };
+	    Parser.prototype.parseObjectInitializer = function () {
+	        var node = this.createNode();
+	        this.expect('{');
+	        var properties = [];
+	        var hasProto = { value: false };
+	        while (!this.match('}')) {
+	            properties.push(this.parseObjectProperty(hasProto));
+	            if (!this.match('}')) {
+	                this.expectCommaSeparator();
+	            }
+	        }
+	        this.expect('}');
+	        return this.finalize(node, new Node.ObjectExpression(properties));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-template-literals
+	    Parser.prototype.parseTemplateHead = function () {
+	        assert_1.assert(this.lookahead.head, 'Template literal must start with a template head');
+	        var node = this.createNode();
+	        var token = this.nextToken();
+	        var raw = token.value;
+	        var cooked = token.cooked;
+	        return this.finalize(node, new Node.TemplateElement({ raw: raw, cooked: cooked }, token.tail));
+	    };
+	    Parser.prototype.parseTemplateElement = function () {
+	        if (this.lookahead.type !== 10 /* Template */) {
+	            this.throwUnexpectedToken();
+	        }
+	        var node = this.createNode();
+	        var token = this.nextToken();
+	        var raw = token.value;
+	        var cooked = token.cooked;
+	        return this.finalize(node, new Node.TemplateElement({ raw: raw, cooked: cooked }, token.tail));
+	    };
+	    Parser.prototype.parseTemplateLiteral = function () {
+	        var node = this.createNode();
+	        var expressions = [];
+	        var quasis = [];
+	        var quasi = this.parseTemplateHead();
+	        quasis.push(quasi);
+	        while (!quasi.tail) {
+	            expressions.push(this.parseExpression());
+	            quasi = this.parseTemplateElement();
+	            quasis.push(quasi);
+	        }
+	        return this.finalize(node, new Node.TemplateLiteral(quasis, expressions));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-grouping-operator
+	    Parser.prototype.reinterpretExpressionAsPattern = function (expr) {
+	        switch (expr.type) {
+	            case syntax_1.Syntax.Identifier:
+	            case syntax_1.Syntax.MemberExpression:
+	            case syntax_1.Syntax.RestElement:
+	            case syntax_1.Syntax.AssignmentPattern:
+	                break;
+	            case syntax_1.Syntax.SpreadElement:
+	                expr.type = syntax_1.Syntax.RestElement;
+	                this.reinterpretExpressionAsPattern(expr.argument);
+	                break;
+	            case syntax_1.Syntax.ArrayExpression:
+	                expr.type = syntax_1.Syntax.ArrayPattern;
+	                for (var i = 0; i < expr.elements.length; i++) {
+	                    if (expr.elements[i] !== null) {
+	                        this.reinterpretExpressionAsPattern(expr.elements[i]);
+	                    }
+	                }
+	                break;
+	            case syntax_1.Syntax.ObjectExpression:
+	                expr.type = syntax_1.Syntax.ObjectPattern;
+	                for (var i = 0; i < expr.properties.length; i++) {
+	                    this.reinterpretExpressionAsPattern(expr.properties[i].value);
+	                }
+	                break;
+	            case syntax_1.Syntax.AssignmentExpression:
+	                expr.type = syntax_1.Syntax.AssignmentPattern;
+	                delete expr.operator;
+	                this.reinterpretExpressionAsPattern(expr.left);
+	                break;
+	            default:
+	                // Allow other node type for tolerant parsing.
+	                break;
+	        }
+	    };
+	    Parser.prototype.parseGroupExpression = function () {
+	        var expr;
+	        this.expect('(');
+	        if (this.match(')')) {
+	            this.nextToken();
+	            if (!this.match('=>')) {
+	                this.expect('=>');
+	            }
+	            expr = {
+	                type: ArrowParameterPlaceHolder,
+	                params: [],
+	                async: false
+	            };
+	        }
+	        else {
+	            var startToken = this.lookahead;
+	            var params = [];
+	            if (this.match('...')) {
+	                expr = this.parseRestElement(params);
+	                this.expect(')');
+	                if (!this.match('=>')) {
+	                    this.expect('=>');
+	                }
+	                expr = {
+	                    type: ArrowParameterPlaceHolder,
+	                    params: [expr],
+	                    async: false
+	                };
+	            }
+	            else {
+	                var arrow = false;
+	                this.context.isBindingElement = true;
+	                expr = this.inheritCoverGrammar(this.parseAssignmentExpression);
+	                if (this.match(',')) {
+	                    var expressions = [];
+	                    this.context.isAssignmentTarget = false;
+	                    expressions.push(expr);
+	                    while (this.lookahead.type !== 2 /* EOF */) {
+	                        if (!this.match(',')) {
+	                            break;
+	                        }
+	                        this.nextToken();
+	                        if (this.match(')')) {
+	                            this.nextToken();
+	                            for (var i = 0; i < expressions.length; i++) {
+	                                this.reinterpretExpressionAsPattern(expressions[i]);
+	                            }
+	                            arrow = true;
+	                            expr = {
+	                                type: ArrowParameterPlaceHolder,
+	                                params: expressions,
+	                                async: false
+	                            };
+	                        }
+	                        else if (this.match('...')) {
+	                            if (!this.context.isBindingElement) {
+	                                this.throwUnexpectedToken(this.lookahead);
+	                            }
+	                            expressions.push(this.parseRestElement(params));
+	                            this.expect(')');
+	                            if (!this.match('=>')) {
+	                                this.expect('=>');
+	                            }
+	                            this.context.isBindingElement = false;
+	                            for (var i = 0; i < expressions.length; i++) {
+	                                this.reinterpretExpressionAsPattern(expressions[i]);
+	                            }
+	                            arrow = true;
+	                            expr = {
+	                                type: ArrowParameterPlaceHolder,
+	                                params: expressions,
+	                                async: false
+	                            };
+	                        }
+	                        else {
+	                            expressions.push(this.inheritCoverGrammar(this.parseAssignmentExpression));
+	                        }
+	                        if (arrow) {
+	                            break;
+	                        }
+	                    }
+	                    if (!arrow) {
+	                        expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions));
+	                    }
+	                }
+	                if (!arrow) {
+	                    this.expect(')');
+	                    if (this.match('=>')) {
+	                        if (expr.type === syntax_1.Syntax.Identifier && expr.name === 'yield') {
+	                            arrow = true;
+	                            expr = {
+	                                type: ArrowParameterPlaceHolder,
+	                                params: [expr],
+	                                async: false
+	                            };
+	                        }
+	                        if (!arrow) {
+	                            if (!this.context.isBindingElement) {
+	                                this.throwUnexpectedToken(this.lookahead);
+	                            }
+	                            if (expr.type === syntax_1.Syntax.SequenceExpression) {
+	                                for (var i = 0; i < expr.expressions.length; i++) {
+	                                    this.reinterpretExpressionAsPattern(expr.expressions[i]);
+	                                }
+	                            }
+	                            else {
+	                                this.reinterpretExpressionAsPattern(expr);
+	                            }
+	                            var parameters = (expr.type === syntax_1.Syntax.SequenceExpression ? expr.expressions : [expr]);
+	                            expr = {
+	                                type: ArrowParameterPlaceHolder,
+	                                params: parameters,
+	                                async: false
+	                            };
+	                        }
+	                    }
+	                    this.context.isBindingElement = false;
+	                }
+	            }
+	        }
+	        return expr;
+	    };
+	    // https://tc39.github.io/ecma262/#sec-left-hand-side-expressions
+	    Parser.prototype.parseArguments = function () {
+	        this.expect('(');
+	        var args = [];
+	        if (!this.match(')')) {
+	            while (true) {
+	                var expr = this.match('...') ? this.parseSpreadElement() :
+	                    this.isolateCoverGrammar(this.parseAssignmentExpression);
+	                args.push(expr);
+	                if (this.match(')')) {
+	                    break;
+	                }
+	                this.expectCommaSeparator();
+	                if (this.match(')')) {
+	                    break;
+	                }
+	            }
+	        }
+	        this.expect(')');
+	        return args;
+	    };
+	    Parser.prototype.isIdentifierName = function (token) {
+	        return token.type === 3 /* Identifier */ ||
+	            token.type === 4 /* Keyword */ ||
+	            token.type === 1 /* BooleanLiteral */ ||
+	            token.type === 5 /* NullLiteral */;
+	    };
+	    Parser.prototype.parseIdentifierName = function () {
+	        var node = this.createNode();
+	        var token = this.nextToken();
+	        if (!this.isIdentifierName(token)) {
+	            this.throwUnexpectedToken(token);
+	        }
+	        return this.finalize(node, new Node.Identifier(token.value));
+	    };
+	    Parser.prototype.parseNewExpression = function () {
+	        var node = this.createNode();
+	        var id = this.parseIdentifierName();
+	        assert_1.assert(id.name === 'new', 'New expression must start with `new`');
+	        var expr;
+	        if (this.match('.')) {
+	            this.nextToken();
+	            if (this.lookahead.type === 3 /* Identifier */ && this.context.inFunctionBody && this.lookahead.value === 'target') {
+	                var property = this.parseIdentifierName();
+	                expr = new Node.MetaProperty(id, property);
+	            }
+	            else {
+	                this.throwUnexpectedToken(this.lookahead);
+	            }
+	        }
+	        else {
+	            var callee = this.isolateCoverGrammar(this.parseLeftHandSideExpression);
+	            var args = this.match('(') ? this.parseArguments() : [];
+	            expr = new Node.NewExpression(callee, args);
+	            this.context.isAssignmentTarget = false;
+	            this.context.isBindingElement = false;
+	        }
+	        return this.finalize(node, expr);
+	    };
+	    Parser.prototype.parseAsyncArgument = function () {
+	        var arg = this.parseAssignmentExpression();
+	        this.context.firstCoverInitializedNameError = null;
+	        return arg;
+	    };
+	    Parser.prototype.parseAsyncArguments = function () {
+	        this.expect('(');
+	        var args = [];
+	        if (!this.match(')')) {
+	            while (true) {
+	                var expr = this.match('...') ? this.parseSpreadElement() :
+	                    this.isolateCoverGrammar(this.parseAsyncArgument);
+	                args.push(expr);
+	                if (this.match(')')) {
+	                    break;
+	                }
+	                this.expectCommaSeparator();
+	                if (this.match(')')) {
+	                    break;
+	                }
+	            }
+	        }
+	        this.expect(')');
+	        return args;
+	    };
+	    Parser.prototype.parseLeftHandSideExpressionAllowCall = function () {
+	        var startToken = this.lookahead;
+	        var maybeAsync = this.matchContextualKeyword('async');
+	        var previousAllowIn = this.context.allowIn;
+	        this.context.allowIn = true;
+	        var expr;
+	        if (this.matchKeyword('super') && this.context.inFunctionBody) {
+	            expr = this.createNode();
+	            this.nextToken();
+	            expr = this.finalize(expr, new Node.Super());
+	            if (!this.match('(') && !this.match('.') && !this.match('[')) {
+	                this.throwUnexpectedToken(this.lookahead);
+	            }
+	        }
+	        else {
+	            expr = this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression);
+	        }
+	        while (true) {
+	            if (this.match('.')) {
+	                this.context.isBindingElement = false;
+	                this.context.isAssignmentTarget = true;
+	                this.expect('.');
+	                var property = this.parseIdentifierName();
+	                expr = this.finalize(this.startNode(startToken), new Node.StaticMemberExpression(expr, property));
+	            }
+	            else if (this.match('(')) {
+	                var asyncArrow = maybeAsync && (startToken.lineNumber === this.lookahead.lineNumber);
+	                this.context.isBindingElement = false;
+	                this.context.isAssignmentTarget = false;
+	                var args = asyncArrow ? this.parseAsyncArguments() : this.parseArguments();
+	                expr = this.finalize(this.startNode(startToken), new Node.CallExpression(expr, args));
+	                if (asyncArrow && this.match('=>')) {
+	                    for (var i = 0; i < args.length; ++i) {
+	                        this.reinterpretExpressionAsPattern(args[i]);
+	                    }
+	                    expr = {
+	                        type: ArrowParameterPlaceHolder,
+	                        params: args,
+	                        async: true
+	                    };
+	                }
+	            }
+	            else if (this.match('[')) {
+	                this.context.isBindingElement = false;
+	                this.context.isAssignmentTarget = true;
+	                this.expect('[');
+	                var property = this.isolateCoverGrammar(this.parseExpression);
+	                this.expect(']');
+	                expr = this.finalize(this.startNode(startToken), new Node.ComputedMemberExpression(expr, property));
+	            }
+	            else if (this.lookahead.type === 10 /* Template */ && this.lookahead.head) {
+	                var quasi = this.parseTemplateLiteral();
+	                expr = this.finalize(this.startNode(startToken), new Node.TaggedTemplateExpression(expr, quasi));
+	            }
+	            else {
+	                break;
+	            }
+	        }
+	        this.context.allowIn = previousAllowIn;
+	        return expr;
+	    };
+	    Parser.prototype.parseSuper = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('super');
+	        if (!this.match('[') && !this.match('.')) {
+	            this.throwUnexpectedToken(this.lookahead);
+	        }
+	        return this.finalize(node, new Node.Super());
+	    };
+	    Parser.prototype.parseLeftHandSideExpression = function () {
+	        assert_1.assert(this.context.allowIn, 'callee of new expression always allow in keyword.');
+	        var node = this.startNode(this.lookahead);
+	        var expr = (this.matchKeyword('super') && this.context.inFunctionBody) ? this.parseSuper() :
+	            this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression);
+	        while (true) {
+	            if (this.match('[')) {
+	                this.context.isBindingElement = false;
+	                this.context.isAssignmentTarget = true;
+	                this.expect('[');
+	                var property = this.isolateCoverGrammar(this.parseExpression);
+	                this.expect(']');
+	                expr = this.finalize(node, new Node.ComputedMemberExpression(expr, property));
+	            }
+	            else if (this.match('.')) {
+	                this.context.isBindingElement = false;
+	                this.context.isAssignmentTarget = true;
+	                this.expect('.');
+	                var property = this.parseIdentifierName();
+	                expr = this.finalize(node, new Node.StaticMemberExpression(expr, property));
+	            }
+	            else if (this.lookahead.type === 10 /* Template */ && this.lookahead.head) {
+	                var quasi = this.parseTemplateLiteral();
+	                expr = this.finalize(node, new Node.TaggedTemplateExpression(expr, quasi));
+	            }
+	            else {
+	                break;
+	            }
+	        }
+	        return expr;
+	    };
+	    // https://tc39.github.io/ecma262/#sec-update-expressions
+	    Parser.prototype.parseUpdateExpression = function () {
+	        var expr;
+	        var startToken = this.lookahead;
+	        if (this.match('++') || this.match('--')) {
+	            var node = this.startNode(startToken);
+	            var token = this.nextToken();
+	            expr = this.inheritCoverGrammar(this.parseUnaryExpression);
+	            if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) {
+	                this.tolerateError(messages_1.Messages.StrictLHSPrefix);
+	            }
+	            if (!this.context.isAssignmentTarget) {
+	                this.tolerateError(messages_1.Messages.InvalidLHSInAssignment);
+	            }
+	            var prefix = true;
+	            expr = this.finalize(node, new Node.UpdateExpression(token.value, expr, prefix));
+	            this.context.isAssignmentTarget = false;
+	            this.context.isBindingElement = false;
+	        }
+	        else {
+	            expr = this.inheritCoverGrammar(this.parseLeftHandSideExpressionAllowCall);
+	            if (!this.hasLineTerminator && this.lookahead.type === 7 /* Punctuator */) {
+	                if (this.match('++') || this.match('--')) {
+	                    if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) {
+	                        this.tolerateError(messages_1.Messages.StrictLHSPostfix);
+	                    }
+	                    if (!this.context.isAssignmentTarget) {
+	                        this.tolerateError(messages_1.Messages.InvalidLHSInAssignment);
+	                    }
+	                    this.context.isAssignmentTarget = false;
+	                    this.context.isBindingElement = false;
+	                    var operator = this.nextToken().value;
+	                    var prefix = false;
+	                    expr = this.finalize(this.startNode(startToken), new Node.UpdateExpression(operator, expr, prefix));
+	                }
+	            }
+	        }
+	        return expr;
+	    };
+	    // https://tc39.github.io/ecma262/#sec-unary-operators
+	    Parser.prototype.parseAwaitExpression = function () {
+	        var node = this.createNode();
+	        this.nextToken();
+	        var argument = this.parseUnaryExpression();
+	        return this.finalize(node, new Node.AwaitExpression(argument));
+	    };
+	    Parser.prototype.parseUnaryExpression = function () {
+	        var expr;
+	        if (this.match('+') || this.match('-') || this.match('~') || this.match('!') ||
+	            this.matchKeyword('delete') || this.matchKeyword('void') || this.matchKeyword('typeof')) {
+	            var node = this.startNode(this.lookahead);
+	            var token = this.nextToken();
+	            expr = this.inheritCoverGrammar(this.parseUnaryExpression);
+	            expr = this.finalize(node, new Node.UnaryExpression(token.value, expr));
+	            if (this.context.strict && expr.operator === 'delete' && expr.argument.type === syntax_1.Syntax.Identifier) {
+	                this.tolerateError(messages_1.Messages.StrictDelete);
+	            }
+	            this.context.isAssignmentTarget = false;
+	            this.context.isBindingElement = false;
+	        }
+	        else if (this.context.await && this.matchContextualKeyword('await')) {
+	            expr = this.parseAwaitExpression();
+	        }
+	        else {
+	            expr = this.parseUpdateExpression();
+	        }
+	        return expr;
+	    };
+	    Parser.prototype.parseExponentiationExpression = function () {
+	        var startToken = this.lookahead;
+	        var expr = this.inheritCoverGrammar(this.parseUnaryExpression);
+	        if (expr.type !== syntax_1.Syntax.UnaryExpression && this.match('**')) {
+	            this.nextToken();
+	            this.context.isAssignmentTarget = false;
+	            this.context.isBindingElement = false;
+	            var left = expr;
+	            var right = this.isolateCoverGrammar(this.parseExponentiationExpression);
+	            expr = this.finalize(this.startNode(startToken), new Node.BinaryExpression('**', left, right));
+	        }
+	        return expr;
+	    };
+	    // https://tc39.github.io/ecma262/#sec-exp-operator
+	    // https://tc39.github.io/ecma262/#sec-multiplicative-operators
+	    // https://tc39.github.io/ecma262/#sec-additive-operators
+	    // https://tc39.github.io/ecma262/#sec-bitwise-shift-operators
+	    // https://tc39.github.io/ecma262/#sec-relational-operators
+	    // https://tc39.github.io/ecma262/#sec-equality-operators
+	    // https://tc39.github.io/ecma262/#sec-binary-bitwise-operators
+	    // https://tc39.github.io/ecma262/#sec-binary-logical-operators
+	    Parser.prototype.binaryPrecedence = function (token) {
+	        var op = token.value;
+	        var precedence;
+	        if (token.type === 7 /* Punctuator */) {
+	            precedence = this.operatorPrecedence[op] || 0;
+	        }
+	        else if (token.type === 4 /* Keyword */) {
+	            precedence = (op === 'instanceof' || (this.context.allowIn && op === 'in')) ? 7 : 0;
+	        }
+	        else {
+	            precedence = 0;
+	        }
+	        return precedence;
+	    };
+	    Parser.prototype.parseBinaryExpression = function () {
+	        var startToken = this.lookahead;
+	        var expr = this.inheritCoverGrammar(this.parseExponentiationExpression);
+	        var token = this.lookahead;
+	        var prec = this.binaryPrecedence(token);
+	        if (prec > 0) {
+	            this.nextToken();
+	            this.context.isAssignmentTarget = false;
+	            this.context.isBindingElement = false;
+	            var markers = [startToken, this.lookahead];
+	            var left = expr;
+	            var right = this.isolateCoverGrammar(this.parseExponentiationExpression);
+	            var stack = [left, token.value, right];
+	            var precedences = [prec];
+	            while (true) {
+	                prec = this.binaryPrecedence(this.lookahead);
+	                if (prec <= 0) {
+	                    break;
+	                }
+	                // Reduce: make a binary expression from the three topmost entries.
+	                while ((stack.length > 2) && (prec <= precedences[precedences.length - 1])) {
+	                    right = stack.pop();
+	                    var operator = stack.pop();
+	                    precedences.pop();
+	                    left = stack.pop();
+	                    markers.pop();
+	                    var node = this.startNode(markers[markers.length - 1]);
+	                    stack.push(this.finalize(node, new Node.BinaryExpression(operator, left, right)));
+	                }
+	                // Shift.
+	                stack.push(this.nextToken().value);
+	                precedences.push(prec);
+	                markers.push(this.lookahead);
+	                stack.push(this.isolateCoverGrammar(this.parseExponentiationExpression));
+	            }
+	            // Final reduce to clean-up the stack.
+	            var i = stack.length - 1;
+	            expr = stack[i];
+	            var lastMarker = markers.pop();
+	            while (i > 1) {
+	                var marker = markers.pop();
+	                var lastLineStart = lastMarker && lastMarker.lineStart;
+	                var node = this.startNode(marker, lastLineStart);
+	                var operator = stack[i - 1];
+	                expr = this.finalize(node, new Node.BinaryExpression(operator, stack[i - 2], expr));
+	                i -= 2;
+	                lastMarker = marker;
+	            }
+	        }
+	        return expr;
+	    };
+	    // https://tc39.github.io/ecma262/#sec-conditional-operator
+	    Parser.prototype.parseConditionalExpression = function () {
+	        var startToken = this.lookahead;
+	        var expr = this.inheritCoverGrammar(this.parseBinaryExpression);
+	        if (this.match('?')) {
+	            this.nextToken();
+	            var previousAllowIn = this.context.allowIn;
+	            this.context.allowIn = true;
+	            var consequent = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	            this.context.allowIn = previousAllowIn;
+	            this.expect(':');
+	            var alternate = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	            expr = this.finalize(this.startNode(startToken), new Node.ConditionalExpression(expr, consequent, alternate));
+	            this.context.isAssignmentTarget = false;
+	            this.context.isBindingElement = false;
+	        }
+	        return expr;
+	    };
+	    // https://tc39.github.io/ecma262/#sec-assignment-operators
+	    Parser.prototype.checkPatternParam = function (options, param) {
+	        switch (param.type) {
+	            case syntax_1.Syntax.Identifier:
+	                this.validateParam(options, param, param.name);
+	                break;
+	            case syntax_1.Syntax.RestElement:
+	                this.checkPatternParam(options, param.argument);
+	                break;
+	            case syntax_1.Syntax.AssignmentPattern:
+	                this.checkPatternParam(options, param.left);
+	                break;
+	            case syntax_1.Syntax.ArrayPattern:
+	                for (var i = 0; i < param.elements.length; i++) {
+	                    if (param.elements[i] !== null) {
+	                        this.checkPatternParam(options, param.elements[i]);
+	                    }
+	                }
+	                break;
+	            case syntax_1.Syntax.ObjectPattern:
+	                for (var i = 0; i < param.properties.length; i++) {
+	                    this.checkPatternParam(options, param.properties[i].value);
+	                }
+	                break;
+	            default:
+	                break;
+	        }
+	        options.simple = options.simple && (param instanceof Node.Identifier);
+	    };
+	    Parser.prototype.reinterpretAsCoverFormalsList = function (expr) {
+	        var params = [expr];
+	        var options;
+	        var asyncArrow = false;
+	        switch (expr.type) {
+	            case syntax_1.Syntax.Identifier:
+	                break;
+	            case ArrowParameterPlaceHolder:
+	                params = expr.params;
+	                asyncArrow = expr.async;
+	                break;
+	            default:
+	                return null;
+	        }
+	        options = {
+	            simple: true,
+	            paramSet: {}
+	        };
+	        for (var i = 0; i < params.length; ++i) {
+	            var param = params[i];
+	            if (param.type === syntax_1.Syntax.AssignmentPattern) {
+	                if (param.right.type === syntax_1.Syntax.YieldExpression) {
+	                    if (param.right.argument) {
+	                        this.throwUnexpectedToken(this.lookahead);
+	                    }
+	                    param.right.type = syntax_1.Syntax.Identifier;
+	                    param.right.name = 'yield';
+	                    delete param.right.argument;
+	                    delete param.right.delegate;
+	                }
+	            }
+	            else if (asyncArrow && param.type === syntax_1.Syntax.Identifier && param.name === 'await') {
+	                this.throwUnexpectedToken(this.lookahead);
+	            }
+	            this.checkPatternParam(options, param);
+	            params[i] = param;
+	        }
+	        if (this.context.strict || !this.context.allowYield) {
+	            for (var i = 0; i < params.length; ++i) {
+	                var param = params[i];
+	                if (param.type === syntax_1.Syntax.YieldExpression) {
+	                    this.throwUnexpectedToken(this.lookahead);
+	                }
+	            }
+	        }
+	        if (options.message === messages_1.Messages.StrictParamDupe) {
+	            var token = this.context.strict ? options.stricted : options.firstRestricted;
+	            this.throwUnexpectedToken(token, options.message);
+	        }
+	        return {
+	            simple: options.simple,
+	            params: params,
+	            stricted: options.stricted,
+	            firstRestricted: options.firstRestricted,
+	            message: options.message
+	        };
+	    };
+	    Parser.prototype.parseAssignmentExpression = function () {
+	        var expr;
+	        if (!this.context.allowYield && this.matchKeyword('yield')) {
+	            expr = this.parseYieldExpression();
+	        }
+	        else {
+	            var startToken = this.lookahead;
+	            var token = startToken;
+	            expr = this.parseConditionalExpression();
+	            if (token.type === 3 /* Identifier */ && (token.lineNumber === this.lookahead.lineNumber) && token.value === 'async') {
+	                if (this.lookahead.type === 3 /* Identifier */ || this.matchKeyword('yield')) {
+	                    var arg = this.parsePrimaryExpression();
+	                    this.reinterpretExpressionAsPattern(arg);
+	                    expr = {
+	                        type: ArrowParameterPlaceHolder,
+	                        params: [arg],
+	                        async: true
+	                    };
+	                }
+	            }
+	            if (expr.type === ArrowParameterPlaceHolder || this.match('=>')) {
+	                // https://tc39.github.io/ecma262/#sec-arrow-function-definitions
+	                this.context.isAssignmentTarget = false;
+	                this.context.isBindingElement = false;
+	                var isAsync = expr.async;
+	                var list = this.reinterpretAsCoverFormalsList(expr);
+	                if (list) {
+	                    if (this.hasLineTerminator) {
+	                        this.tolerateUnexpectedToken(this.lookahead);
+	                    }
+	                    this.context.firstCoverInitializedNameError = null;
+	                    var previousStrict = this.context.strict;
+	                    var previousAllowStrictDirective = this.context.allowStrictDirective;
+	                    this.context.allowStrictDirective = list.simple;
+	                    var previousAllowYield = this.context.allowYield;
+	                    var previousAwait = this.context.await;
+	                    this.context.allowYield = true;
+	                    this.context.await = isAsync;
+	                    var node = this.startNode(startToken);
+	                    this.expect('=>');
+	                    var body = void 0;
+	                    if (this.match('{')) {
+	                        var previousAllowIn = this.context.allowIn;
+	                        this.context.allowIn = true;
+	                        body = this.parseFunctionSourceElements();
+	                        this.context.allowIn = previousAllowIn;
+	                    }
+	                    else {
+	                        body = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	                    }
+	                    var expression = body.type !== syntax_1.Syntax.BlockStatement;
+	                    if (this.context.strict && list.firstRestricted) {
+	                        this.throwUnexpectedToken(list.firstRestricted, list.message);
+	                    }
+	                    if (this.context.strict && list.stricted) {
+	                        this.tolerateUnexpectedToken(list.stricted, list.message);
+	                    }
+	                    expr = isAsync ? this.finalize(node, new Node.AsyncArrowFunctionExpression(list.params, body, expression)) :
+	                        this.finalize(node, new Node.ArrowFunctionExpression(list.params, body, expression));
+	                    this.context.strict = previousStrict;
+	                    this.context.allowStrictDirective = previousAllowStrictDirective;
+	                    this.context.allowYield = previousAllowYield;
+	                    this.context.await = previousAwait;
+	                }
+	            }
+	            else {
+	                if (this.matchAssign()) {
+	                    if (!this.context.isAssignmentTarget) {
+	                        this.tolerateError(messages_1.Messages.InvalidLHSInAssignment);
+	                    }
+	                    if (this.context.strict && expr.type === syntax_1.Syntax.Identifier) {
+	                        var id = expr;
+	                        if (this.scanner.isRestrictedWord(id.name)) {
+	                            this.tolerateUnexpectedToken(token, messages_1.Messages.StrictLHSAssignment);
+	                        }
+	                        if (this.scanner.isStrictModeReservedWord(id.name)) {
+	                            this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord);
+	                        }
+	                    }
+	                    if (!this.match('=')) {
+	                        this.context.isAssignmentTarget = false;
+	                        this.context.isBindingElement = false;
+	                    }
+	                    else {
+	                        this.reinterpretExpressionAsPattern(expr);
+	                    }
+	                    token = this.nextToken();
+	                    var operator = token.value;
+	                    var right = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	                    expr = this.finalize(this.startNode(startToken), new Node.AssignmentExpression(operator, expr, right));
+	                    this.context.firstCoverInitializedNameError = null;
+	                }
+	            }
+	        }
+	        return expr;
+	    };
+	    // https://tc39.github.io/ecma262/#sec-comma-operator
+	    Parser.prototype.parseExpression = function () {
+	        var startToken = this.lookahead;
+	        var expr = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	        if (this.match(',')) {
+	            var expressions = [];
+	            expressions.push(expr);
+	            while (this.lookahead.type !== 2 /* EOF */) {
+	                if (!this.match(',')) {
+	                    break;
+	                }
+	                this.nextToken();
+	                expressions.push(this.isolateCoverGrammar(this.parseAssignmentExpression));
+	            }
+	            expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions));
+	        }
+	        return expr;
+	    };
+	    // https://tc39.github.io/ecma262/#sec-block
+	    Parser.prototype.parseStatementListItem = function () {
+	        var statement;
+	        this.context.isAssignmentTarget = true;
+	        this.context.isBindingElement = true;
+	        if (this.lookahead.type === 4 /* Keyword */) {
+	            switch (this.lookahead.value) {
+	                case 'export':
+	                    if (!this.context.isModule) {
+	                        this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalExportDeclaration);
+	                    }
+	                    statement = this.parseExportDeclaration();
+	                    break;
+	                case 'import':
+	                    if (!this.context.isModule) {
+	                        this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalImportDeclaration);
+	                    }
+	                    statement = this.parseImportDeclaration();
+	                    break;
+	                case 'const':
+	                    statement = this.parseLexicalDeclaration({ inFor: false });
+	                    break;
+	                case 'function':
+	                    statement = this.parseFunctionDeclaration();
+	                    break;
+	                case 'class':
+	                    statement = this.parseClassDeclaration();
+	                    break;
+	                case 'let':
+	                    statement = this.isLexicalDeclaration() ? this.parseLexicalDeclaration({ inFor: false }) : this.parseStatement();
+	                    break;
+	                default:
+	                    statement = this.parseStatement();
+	                    break;
+	            }
+	        }
+	        else {
+	            statement = this.parseStatement();
+	        }
+	        return statement;
+	    };
+	    Parser.prototype.parseBlock = function () {
+	        var node = this.createNode();
+	        this.expect('{');
+	        var block = [];
+	        while (true) {
+	            if (this.match('}')) {
+	                break;
+	            }
+	            block.push(this.parseStatementListItem());
+	        }
+	        this.expect('}');
+	        return this.finalize(node, new Node.BlockStatement(block));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-let-and-const-declarations
+	    Parser.prototype.parseLexicalBinding = function (kind, options) {
+	        var node = this.createNode();
+	        var params = [];
+	        var id = this.parsePattern(params, kind);
+	        if (this.context.strict && id.type === syntax_1.Syntax.Identifier) {
+	            if (this.scanner.isRestrictedWord(id.name)) {
+	                this.tolerateError(messages_1.Messages.StrictVarName);
+	            }
+	        }
+	        var init = null;
+	        if (kind === 'const') {
+	            if (!this.matchKeyword('in') && !this.matchContextualKeyword('of')) {
+	                if (this.match('=')) {
+	                    this.nextToken();
+	                    init = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	                }
+	                else {
+	                    this.throwError(messages_1.Messages.DeclarationMissingInitializer, 'const');
+	                }
+	            }
+	        }
+	        else if ((!options.inFor && id.type !== syntax_1.Syntax.Identifier) || this.match('=')) {
+	            this.expect('=');
+	            init = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	        }
+	        return this.finalize(node, new Node.VariableDeclarator(id, init));
+	    };
+	    Parser.prototype.parseBindingList = function (kind, options) {
+	        var list = [this.parseLexicalBinding(kind, options)];
+	        while (this.match(',')) {
+	            this.nextToken();
+	            list.push(this.parseLexicalBinding(kind, options));
+	        }
+	        return list;
+	    };
+	    Parser.prototype.isLexicalDeclaration = function () {
+	        var state = this.scanner.saveState();
+	        this.scanner.scanComments();
+	        var next = this.scanner.lex();
+	        this.scanner.restoreState(state);
+	        return (next.type === 3 /* Identifier */) ||
+	            (next.type === 7 /* Punctuator */ && next.value === '[') ||
+	            (next.type === 7 /* Punctuator */ && next.value === '{') ||
+	            (next.type === 4 /* Keyword */ && next.value === 'let') ||
+	            (next.type === 4 /* Keyword */ && next.value === 'yield');
+	    };
+	    Parser.prototype.parseLexicalDeclaration = function (options) {
+	        var node = this.createNode();
+	        var kind = this.nextToken().value;
+	        assert_1.assert(kind === 'let' || kind === 'const', 'Lexical declaration must be either let or const');
+	        var declarations = this.parseBindingList(kind, options);
+	        this.consumeSemicolon();
+	        return this.finalize(node, new Node.VariableDeclaration(declarations, kind));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-destructuring-binding-patterns
+	    Parser.prototype.parseBindingRestElement = function (params, kind) {
+	        var node = this.createNode();
+	        this.expect('...');
+	        var arg = this.parsePattern(params, kind);
+	        return this.finalize(node, new Node.RestElement(arg));
+	    };
+	    Parser.prototype.parseArrayPattern = function (params, kind) {
+	        var node = this.createNode();
+	        this.expect('[');
+	        var elements = [];
+	        while (!this.match(']')) {
+	            if (this.match(',')) {
+	                this.nextToken();
+	                elements.push(null);
+	            }
+	            else {
+	                if (this.match('...')) {
+	                    elements.push(this.parseBindingRestElement(params, kind));
+	                    break;
+	                }
+	                else {
+	                    elements.push(this.parsePatternWithDefault(params, kind));
+	                }
+	                if (!this.match(']')) {
+	                    this.expect(',');
+	                }
+	            }
+	        }
+	        this.expect(']');
+	        return this.finalize(node, new Node.ArrayPattern(elements));
+	    };
+	    Parser.prototype.parsePropertyPattern = function (params, kind) {
+	        var node = this.createNode();
+	        var computed = false;
+	        var shorthand = false;
+	        var method = false;
+	        var key;
+	        var value;
+	        if (this.lookahead.type === 3 /* Identifier */) {
+	            var keyToken = this.lookahead;
+	            key = this.parseVariableIdentifier();
+	            var init = this.finalize(node, new Node.Identifier(keyToken.value));
+	            if (this.match('=')) {
+	                params.push(keyToken);
+	                shorthand = true;
+	                this.nextToken();
+	                var expr = this.parseAssignmentExpression();
+	                value = this.finalize(this.startNode(keyToken), new Node.AssignmentPattern(init, expr));
+	            }
+	            else if (!this.match(':')) {
+	                params.push(keyToken);
+	                shorthand = true;
+	                value = init;
+	            }
+	            else {
+	                this.expect(':');
+	                value = this.parsePatternWithDefault(params, kind);
+	            }
+	        }
+	        else {
+	            computed = this.match('[');
+	            key = this.parseObjectPropertyKey();
+	            this.expect(':');
+	            value = this.parsePatternWithDefault(params, kind);
+	        }
+	        return this.finalize(node, new Node.Property('init', key, computed, value, method, shorthand));
+	    };
+	    Parser.prototype.parseObjectPattern = function (params, kind) {
+	        var node = this.createNode();
+	        var properties = [];
+	        this.expect('{');
+	        while (!this.match('}')) {
+	            properties.push(this.parsePropertyPattern(params, kind));
+	            if (!this.match('}')) {
+	                this.expect(',');
+	            }
+	        }
+	        this.expect('}');
+	        return this.finalize(node, new Node.ObjectPattern(properties));
+	    };
+	    Parser.prototype.parsePattern = function (params, kind) {
+	        var pattern;
+	        if (this.match('[')) {
+	            pattern = this.parseArrayPattern(params, kind);
+	        }
+	        else if (this.match('{')) {
+	            pattern = this.parseObjectPattern(params, kind);
+	        }
+	        else {
+	            if (this.matchKeyword('let') && (kind === 'const' || kind === 'let')) {
+	                this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.LetInLexicalBinding);
+	            }
+	            params.push(this.lookahead);
+	            pattern = this.parseVariableIdentifier(kind);
+	        }
+	        return pattern;
+	    };
+	    Parser.prototype.parsePatternWithDefault = function (params, kind) {
+	        var startToken = this.lookahead;
+	        var pattern = this.parsePattern(params, kind);
+	        if (this.match('=')) {
+	            this.nextToken();
+	            var previousAllowYield = this.context.allowYield;
+	            this.context.allowYield = true;
+	            var right = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	            this.context.allowYield = previousAllowYield;
+	            pattern = this.finalize(this.startNode(startToken), new Node.AssignmentPattern(pattern, right));
+	        }
+	        return pattern;
+	    };
+	    // https://tc39.github.io/ecma262/#sec-variable-statement
+	    Parser.prototype.parseVariableIdentifier = function (kind) {
+	        var node = this.createNode();
+	        var token = this.nextToken();
+	        if (token.type === 4 /* Keyword */ && token.value === 'yield') {
+	            if (this.context.strict) {
+	                this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord);
+	            }
+	            else if (!this.context.allowYield) {
+	                this.throwUnexpectedToken(token);
+	            }
+	        }
+	        else if (token.type !== 3 /* Identifier */) {
+	            if (this.context.strict && token.type === 4 /* Keyword */ && this.scanner.isStrictModeReservedWord(token.value)) {
+	                this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord);
+	            }
+	            else {
+	                if (this.context.strict || token.value !== 'let' || kind !== 'var') {
+	                    this.throwUnexpectedToken(token);
+	                }
+	            }
+	        }
+	        else if ((this.context.isModule || this.context.await) && token.type === 3 /* Identifier */ && token.value === 'await') {
+	            this.tolerateUnexpectedToken(token);
+	        }
+	        return this.finalize(node, new Node.Identifier(token.value));
+	    };
+	    Parser.prototype.parseVariableDeclaration = function (options) {
+	        var node = this.createNode();
+	        var params = [];
+	        var id = this.parsePattern(params, 'var');
+	        if (this.context.strict && id.type === syntax_1.Syntax.Identifier) {
+	            if (this.scanner.isRestrictedWord(id.name)) {
+	                this.tolerateError(messages_1.Messages.StrictVarName);
+	            }
+	        }
+	        var init = null;
+	        if (this.match('=')) {
+	            this.nextToken();
+	            init = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	        }
+	        else if (id.type !== syntax_1.Syntax.Identifier && !options.inFor) {
+	            this.expect('=');
+	        }
+	        return this.finalize(node, new Node.VariableDeclarator(id, init));
+	    };
+	    Parser.prototype.parseVariableDeclarationList = function (options) {
+	        var opt = { inFor: options.inFor };
+	        var list = [];
+	        list.push(this.parseVariableDeclaration(opt));
+	        while (this.match(',')) {
+	            this.nextToken();
+	            list.push(this.parseVariableDeclaration(opt));
+	        }
+	        return list;
+	    };
+	    Parser.prototype.parseVariableStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('var');
+	        var declarations = this.parseVariableDeclarationList({ inFor: false });
+	        this.consumeSemicolon();
+	        return this.finalize(node, new Node.VariableDeclaration(declarations, 'var'));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-empty-statement
+	    Parser.prototype.parseEmptyStatement = function () {
+	        var node = this.createNode();
+	        this.expect(';');
+	        return this.finalize(node, new Node.EmptyStatement());
+	    };
+	    // https://tc39.github.io/ecma262/#sec-expression-statement
+	    Parser.prototype.parseExpressionStatement = function () {
+	        var node = this.createNode();
+	        var expr = this.parseExpression();
+	        this.consumeSemicolon();
+	        return this.finalize(node, new Node.ExpressionStatement(expr));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-if-statement
+	    Parser.prototype.parseIfClause = function () {
+	        if (this.context.strict && this.matchKeyword('function')) {
+	            this.tolerateError(messages_1.Messages.StrictFunction);
+	        }
+	        return this.parseStatement();
+	    };
+	    Parser.prototype.parseIfStatement = function () {
+	        var node = this.createNode();
+	        var consequent;
+	        var alternate = null;
+	        this.expectKeyword('if');
+	        this.expect('(');
+	        var test = this.parseExpression();
+	        if (!this.match(')') && this.config.tolerant) {
+	            this.tolerateUnexpectedToken(this.nextToken());
+	            consequent = this.finalize(this.createNode(), new Node.EmptyStatement());
+	        }
+	        else {
+	            this.expect(')');
+	            consequent = this.parseIfClause();
+	            if (this.matchKeyword('else')) {
+	                this.nextToken();
+	                alternate = this.parseIfClause();
+	            }
+	        }
+	        return this.finalize(node, new Node.IfStatement(test, consequent, alternate));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-do-while-statement
+	    Parser.prototype.parseDoWhileStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('do');
+	        var previousInIteration = this.context.inIteration;
+	        this.context.inIteration = true;
+	        var body = this.parseStatement();
+	        this.context.inIteration = previousInIteration;
+	        this.expectKeyword('while');
+	        this.expect('(');
+	        var test = this.parseExpression();
+	        if (!this.match(')') && this.config.tolerant) {
+	            this.tolerateUnexpectedToken(this.nextToken());
+	        }
+	        else {
+	            this.expect(')');
+	            if (this.match(';')) {
+	                this.nextToken();
+	            }
+	        }
+	        return this.finalize(node, new Node.DoWhileStatement(body, test));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-while-statement
+	    Parser.prototype.parseWhileStatement = function () {
+	        var node = this.createNode();
+	        var body;
+	        this.expectKeyword('while');
+	        this.expect('(');
+	        var test = this.parseExpression();
+	        if (!this.match(')') && this.config.tolerant) {
+	            this.tolerateUnexpectedToken(this.nextToken());
+	            body = this.finalize(this.createNode(), new Node.EmptyStatement());
+	        }
+	        else {
+	            this.expect(')');
+	            var previousInIteration = this.context.inIteration;
+	            this.context.inIteration = true;
+	            body = this.parseStatement();
+	            this.context.inIteration = previousInIteration;
+	        }
+	        return this.finalize(node, new Node.WhileStatement(test, body));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-for-statement
+	    // https://tc39.github.io/ecma262/#sec-for-in-and-for-of-statements
+	    Parser.prototype.parseForStatement = function () {
+	        var init = null;
+	        var test = null;
+	        var update = null;
+	        var forIn = true;
+	        var left, right;
+	        var node = this.createNode();
+	        this.expectKeyword('for');
+	        this.expect('(');
+	        if (this.match(';')) {
+	            this.nextToken();
+	        }
+	        else {
+	            if (this.matchKeyword('var')) {
+	                init = this.createNode();
+	                this.nextToken();
+	                var previousAllowIn = this.context.allowIn;
+	                this.context.allowIn = false;
+	                var declarations = this.parseVariableDeclarationList({ inFor: true });
+	                this.context.allowIn = previousAllowIn;
+	                if (declarations.length === 1 && this.matchKeyword('in')) {
+	                    var decl = declarations[0];
+	                    if (decl.init && (decl.id.type === syntax_1.Syntax.ArrayPattern || decl.id.type === syntax_1.Syntax.ObjectPattern || this.context.strict)) {
+	                        this.tolerateError(messages_1.Messages.ForInOfLoopInitializer, 'for-in');
+	                    }
+	                    init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var'));
+	                    this.nextToken();
+	                    left = init;
+	                    right = this.parseExpression();
+	                    init = null;
+	                }
+	                else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) {
+	                    init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var'));
+	                    this.nextToken();
+	                    left = init;
+	                    right = this.parseAssignmentExpression();
+	                    init = null;
+	                    forIn = false;
+	                }
+	                else {
+	                    init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var'));
+	                    this.expect(';');
+	                }
+	            }
+	            else if (this.matchKeyword('const') || this.matchKeyword('let')) {
+	                init = this.createNode();
+	                var kind = this.nextToken().value;
+	                if (!this.context.strict && this.lookahead.value === 'in') {
+	                    init = this.finalize(init, new Node.Identifier(kind));
+	                    this.nextToken();
+	                    left = init;
+	                    right = this.parseExpression();
+	                    init = null;
+	                }
+	                else {
+	                    var previousAllowIn = this.context.allowIn;
+	                    this.context.allowIn = false;
+	                    var declarations = this.parseBindingList(kind, { inFor: true });
+	                    this.context.allowIn = previousAllowIn;
+	                    if (declarations.length === 1 && declarations[0].init === null && this.matchKeyword('in')) {
+	                        init = this.finalize(init, new Node.VariableDeclaration(declarations, kind));
+	                        this.nextToken();
+	                        left = init;
+	                        right = this.parseExpression();
+	                        init = null;
+	                    }
+	                    else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) {
+	                        init = this.finalize(init, new Node.VariableDeclaration(declarations, kind));
+	                        this.nextToken();
+	                        left = init;
+	                        right = this.parseAssignmentExpression();
+	                        init = null;
+	                        forIn = false;
+	                    }
+	                    else {
+	                        this.consumeSemicolon();
+	                        init = this.finalize(init, new Node.VariableDeclaration(declarations, kind));
+	                    }
+	                }
+	            }
+	            else {
+	                var initStartToken = this.lookahead;
+	                var previousAllowIn = this.context.allowIn;
+	                this.context.allowIn = false;
+	                init = this.inheritCoverGrammar(this.parseAssignmentExpression);
+	                this.context.allowIn = previousAllowIn;
+	                if (this.matchKeyword('in')) {
+	                    if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) {
+	                        this.tolerateError(messages_1.Messages.InvalidLHSInForIn);
+	                    }
+	                    this.nextToken();
+	                    this.reinterpretExpressionAsPattern(init);
+	                    left = init;
+	                    right = this.parseExpression();
+	                    init = null;
+	                }
+	                else if (this.matchContextualKeyword('of')) {
+	                    if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) {
+	                        this.tolerateError(messages_1.Messages.InvalidLHSInForLoop);
+	                    }
+	                    this.nextToken();
+	                    this.reinterpretExpressionAsPattern(init);
+	                    left = init;
+	                    right = this.parseAssignmentExpression();
+	                    init = null;
+	                    forIn = false;
+	                }
+	                else {
+	                    if (this.match(',')) {
+	                        var initSeq = [init];
+	                        while (this.match(',')) {
+	                            this.nextToken();
+	                            initSeq.push(this.isolateCoverGrammar(this.parseAssignmentExpression));
+	                        }
+	                        init = this.finalize(this.startNode(initStartToken), new Node.SequenceExpression(initSeq));
+	                    }
+	                    this.expect(';');
+	                }
+	            }
+	        }
+	        if (typeof left === 'undefined') {
+	            if (!this.match(';')) {
+	                test = this.parseExpression();
+	            }
+	            this.expect(';');
+	            if (!this.match(')')) {
+	                update = this.parseExpression();
+	            }
+	        }
+	        var body;
+	        if (!this.match(')') && this.config.tolerant) {
+	            this.tolerateUnexpectedToken(this.nextToken());
+	            body = this.finalize(this.createNode(), new Node.EmptyStatement());
+	        }
+	        else {
+	            this.expect(')');
+	            var previousInIteration = this.context.inIteration;
+	            this.context.inIteration = true;
+	            body = this.isolateCoverGrammar(this.parseStatement);
+	            this.context.inIteration = previousInIteration;
+	        }
+	        return (typeof left === 'undefined') ?
+	            this.finalize(node, new Node.ForStatement(init, test, update, body)) :
+	            forIn ? this.finalize(node, new Node.ForInStatement(left, right, body)) :
+	                this.finalize(node, new Node.ForOfStatement(left, right, body));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-continue-statement
+	    Parser.prototype.parseContinueStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('continue');
+	        var label = null;
+	        if (this.lookahead.type === 3 /* Identifier */ && !this.hasLineTerminator) {
+	            var id = this.parseVariableIdentifier();
+	            label = id;
+	            var key = '$' + id.name;
+	            if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) {
+	                this.throwError(messages_1.Messages.UnknownLabel, id.name);
+	            }
+	        }
+	        this.consumeSemicolon();
+	        if (label === null && !this.context.inIteration) {
+	            this.throwError(messages_1.Messages.IllegalContinue);
+	        }
+	        return this.finalize(node, new Node.ContinueStatement(label));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-break-statement
+	    Parser.prototype.parseBreakStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('break');
+	        var label = null;
+	        if (this.lookahead.type === 3 /* Identifier */ && !this.hasLineTerminator) {
+	            var id = this.parseVariableIdentifier();
+	            var key = '$' + id.name;
+	            if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) {
+	                this.throwError(messages_1.Messages.UnknownLabel, id.name);
+	            }
+	            label = id;
+	        }
+	        this.consumeSemicolon();
+	        if (label === null && !this.context.inIteration && !this.context.inSwitch) {
+	            this.throwError(messages_1.Messages.IllegalBreak);
+	        }
+	        return this.finalize(node, new Node.BreakStatement(label));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-return-statement
+	    Parser.prototype.parseReturnStatement = function () {
+	        if (!this.context.inFunctionBody) {
+	            this.tolerateError(messages_1.Messages.IllegalReturn);
+	        }
+	        var node = this.createNode();
+	        this.expectKeyword('return');
+	        var hasArgument = (!this.match(';') && !this.match('}') &&
+	            !this.hasLineTerminator && this.lookahead.type !== 2 /* EOF */) ||
+	            this.lookahead.type === 8 /* StringLiteral */ ||
+	            this.lookahead.type === 10 /* Template */;
+	        var argument = hasArgument ? this.parseExpression() : null;
+	        this.consumeSemicolon();
+	        return this.finalize(node, new Node.ReturnStatement(argument));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-with-statement
+	    Parser.prototype.parseWithStatement = function () {
+	        if (this.context.strict) {
+	            this.tolerateError(messages_1.Messages.StrictModeWith);
+	        }
+	        var node = this.createNode();
+	        var body;
+	        this.expectKeyword('with');
+	        this.expect('(');
+	        var object = this.parseExpression();
+	        if (!this.match(')') && this.config.tolerant) {
+	            this.tolerateUnexpectedToken(this.nextToken());
+	            body = this.finalize(this.createNode(), new Node.EmptyStatement());
+	        }
+	        else {
+	            this.expect(')');
+	            body = this.parseStatement();
+	        }
+	        return this.finalize(node, new Node.WithStatement(object, body));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-switch-statement
+	    Parser.prototype.parseSwitchCase = function () {
+	        var node = this.createNode();
+	        var test;
+	        if (this.matchKeyword('default')) {
+	            this.nextToken();
+	            test = null;
+	        }
+	        else {
+	            this.expectKeyword('case');
+	            test = this.parseExpression();
+	        }
+	        this.expect(':');
+	        var consequent = [];
+	        while (true) {
+	            if (this.match('}') || this.matchKeyword('default') || this.matchKeyword('case')) {
+	                break;
+	            }
+	            consequent.push(this.parseStatementListItem());
+	        }
+	        return this.finalize(node, new Node.SwitchCase(test, consequent));
+	    };
+	    Parser.prototype.parseSwitchStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('switch');
+	        this.expect('(');
+	        var discriminant = this.parseExpression();
+	        this.expect(')');
+	        var previousInSwitch = this.context.inSwitch;
+	        this.context.inSwitch = true;
+	        var cases = [];
+	        var defaultFound = false;
+	        this.expect('{');
+	        while (true) {
+	            if (this.match('}')) {
+	                break;
+	            }
+	            var clause = this.parseSwitchCase();
+	            if (clause.test === null) {
+	                if (defaultFound) {
+	                    this.throwError(messages_1.Messages.MultipleDefaultsInSwitch);
+	                }
+	                defaultFound = true;
+	            }
+	            cases.push(clause);
+	        }
+	        this.expect('}');
+	        this.context.inSwitch = previousInSwitch;
+	        return this.finalize(node, new Node.SwitchStatement(discriminant, cases));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-labelled-statements
+	    Parser.prototype.parseLabelledStatement = function () {
+	        var node = this.createNode();
+	        var expr = this.parseExpression();
+	        var statement;
+	        if ((expr.type === syntax_1.Syntax.Identifier) && this.match(':')) {
+	            this.nextToken();
+	            var id = expr;
+	            var key = '$' + id.name;
+	            if (Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) {
+	                this.throwError(messages_1.Messages.Redeclaration, 'Label', id.name);
+	            }
+	            this.context.labelSet[key] = true;
+	            var body = void 0;
+	            if (this.matchKeyword('class')) {
+	                this.tolerateUnexpectedToken(this.lookahead);
+	                body = this.parseClassDeclaration();
+	            }
+	            else if (this.matchKeyword('function')) {
+	                var token = this.lookahead;
+	                var declaration = this.parseFunctionDeclaration();
+	                if (this.context.strict) {
+	                    this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunction);
+	                }
+	                else if (declaration.generator) {
+	                    this.tolerateUnexpectedToken(token, messages_1.Messages.GeneratorInLegacyContext);
+	                }
+	                body = declaration;
+	            }
+	            else {
+	                body = this.parseStatement();
+	            }
+	            delete this.context.labelSet[key];
+	            statement = new Node.LabeledStatement(id, body);
+	        }
+	        else {
+	            this.consumeSemicolon();
+	            statement = new Node.ExpressionStatement(expr);
+	        }
+	        return this.finalize(node, statement);
+	    };
+	    // https://tc39.github.io/ecma262/#sec-throw-statement
+	    Parser.prototype.parseThrowStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('throw');
+	        if (this.hasLineTerminator) {
+	            this.throwError(messages_1.Messages.NewlineAfterThrow);
+	        }
+	        var argument = this.parseExpression();
+	        this.consumeSemicolon();
+	        return this.finalize(node, new Node.ThrowStatement(argument));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-try-statement
+	    Parser.prototype.parseCatchClause = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('catch');
+	        this.expect('(');
+	        if (this.match(')')) {
+	            this.throwUnexpectedToken(this.lookahead);
+	        }
+	        var params = [];
+	        var param = this.parsePattern(params);
+	        var paramMap = {};
+	        for (var i = 0; i < params.length; i++) {
+	            var key = '$' + params[i].value;
+	            if (Object.prototype.hasOwnProperty.call(paramMap, key)) {
+	                this.tolerateError(messages_1.Messages.DuplicateBinding, params[i].value);
+	            }
+	            paramMap[key] = true;
+	        }
+	        if (this.context.strict && param.type === syntax_1.Syntax.Identifier) {
+	            if (this.scanner.isRestrictedWord(param.name)) {
+	                this.tolerateError(messages_1.Messages.StrictCatchVariable);
+	            }
+	        }
+	        this.expect(')');
+	        var body = this.parseBlock();
+	        return this.finalize(node, new Node.CatchClause(param, body));
+	    };
+	    Parser.prototype.parseFinallyClause = function () {
+	        this.expectKeyword('finally');
+	        return this.parseBlock();
+	    };
+	    Parser.prototype.parseTryStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('try');
+	        var block = this.parseBlock();
+	        var handler = this.matchKeyword('catch') ? this.parseCatchClause() : null;
+	        var finalizer = this.matchKeyword('finally') ? this.parseFinallyClause() : null;
+	        if (!handler && !finalizer) {
+	            this.throwError(messages_1.Messages.NoCatchOrFinally);
+	        }
+	        return this.finalize(node, new Node.TryStatement(block, handler, finalizer));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-debugger-statement
+	    Parser.prototype.parseDebuggerStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('debugger');
+	        this.consumeSemicolon();
+	        return this.finalize(node, new Node.DebuggerStatement());
+	    };
+	    // https://tc39.github.io/ecma262/#sec-ecmascript-language-statements-and-declarations
+	    Parser.prototype.parseStatement = function () {
+	        var statement;
+	        switch (this.lookahead.type) {
+	            case 1 /* BooleanLiteral */:
+	            case 5 /* NullLiteral */:
+	            case 6 /* NumericLiteral */:
+	            case 8 /* StringLiteral */:
+	            case 10 /* Template */:
+	            case 9 /* RegularExpression */:
+	                statement = this.parseExpressionStatement();
+	                break;
+	            case 7 /* Punctuator */:
+	                var value = this.lookahead.value;
+	                if (value === '{') {
+	                    statement = this.parseBlock();
+	                }
+	                else if (value === '(') {
+	                    statement = this.parseExpressionStatement();
+	                }
+	                else if (value === ';') {
+	                    statement = this.parseEmptyStatement();
+	                }
+	                else {
+	                    statement = this.parseExpressionStatement();
+	                }
+	                break;
+	            case 3 /* Identifier */:
+	                statement = this.matchAsyncFunction() ? this.parseFunctionDeclaration() : this.parseLabelledStatement();
+	                break;
+	            case 4 /* Keyword */:
+	                switch (this.lookahead.value) {
+	                    case 'break':
+	                        statement = this.parseBreakStatement();
+	                        break;
+	                    case 'continue':
+	                        statement = this.parseContinueStatement();
+	                        break;
+	                    case 'debugger':
+	                        statement = this.parseDebuggerStatement();
+	                        break;
+	                    case 'do':
+	                        statement = this.parseDoWhileStatement();
+	                        break;
+	                    case 'for':
+	                        statement = this.parseForStatement();
+	                        break;
+	                    case 'function':
+	                        statement = this.parseFunctionDeclaration();
+	                        break;
+	                    case 'if':
+	                        statement = this.parseIfStatement();
+	                        break;
+	                    case 'return':
+	                        statement = this.parseReturnStatement();
+	                        break;
+	                    case 'switch':
+	                        statement = this.parseSwitchStatement();
+	                        break;
+	                    case 'throw':
+	                        statement = this.parseThrowStatement();
+	                        break;
+	                    case 'try':
+	                        statement = this.parseTryStatement();
+	                        break;
+	                    case 'var':
+	                        statement = this.parseVariableStatement();
+	                        break;
+	                    case 'while':
+	                        statement = this.parseWhileStatement();
+	                        break;
+	                    case 'with':
+	                        statement = this.parseWithStatement();
+	                        break;
+	                    default:
+	                        statement = this.parseExpressionStatement();
+	                        break;
+	                }
+	                break;
+	            default:
+	                statement = this.throwUnexpectedToken(this.lookahead);
+	        }
+	        return statement;
+	    };
+	    // https://tc39.github.io/ecma262/#sec-function-definitions
+	    Parser.prototype.parseFunctionSourceElements = function () {
+	        var node = this.createNode();
+	        this.expect('{');
+	        var body = this.parseDirectivePrologues();
+	        var previousLabelSet = this.context.labelSet;
+	        var previousInIteration = this.context.inIteration;
+	        var previousInSwitch = this.context.inSwitch;
+	        var previousInFunctionBody = this.context.inFunctionBody;
+	        this.context.labelSet = {};
+	        this.context.inIteration = false;
+	        this.context.inSwitch = false;
+	        this.context.inFunctionBody = true;
+	        while (this.lookahead.type !== 2 /* EOF */) {
+	            if (this.match('}')) {
+	                break;
+	            }
+	            body.push(this.parseStatementListItem());
+	        }
+	        this.expect('}');
+	        this.context.labelSet = previousLabelSet;
+	        this.context.inIteration = previousInIteration;
+	        this.context.inSwitch = previousInSwitch;
+	        this.context.inFunctionBody = previousInFunctionBody;
+	        return this.finalize(node, new Node.BlockStatement(body));
+	    };
+	    Parser.prototype.validateParam = function (options, param, name) {
+	        var key = '$' + name;
+	        if (this.context.strict) {
+	            if (this.scanner.isRestrictedWord(name)) {
+	                options.stricted = param;
+	                options.message = messages_1.Messages.StrictParamName;
+	            }
+	            if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) {
+	                options.stricted = param;
+	                options.message = messages_1.Messages.StrictParamDupe;
+	            }
+	        }
+	        else if (!options.firstRestricted) {
+	            if (this.scanner.isRestrictedWord(name)) {
+	                options.firstRestricted = param;
+	                options.message = messages_1.Messages.StrictParamName;
+	            }
+	            else if (this.scanner.isStrictModeReservedWord(name)) {
+	                options.firstRestricted = param;
+	                options.message = messages_1.Messages.StrictReservedWord;
+	            }
+	            else if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) {
+	                options.stricted = param;
+	                options.message = messages_1.Messages.StrictParamDupe;
+	            }
+	        }
+	        /* istanbul ignore next */
+	        if (typeof Object.defineProperty === 'function') {
+	            Object.defineProperty(options.paramSet, key, { value: true, enumerable: true, writable: true, configurable: true });
+	        }
+	        else {
+	            options.paramSet[key] = true;
+	        }
+	    };
+	    Parser.prototype.parseRestElement = function (params) {
+	        var node = this.createNode();
+	        this.expect('...');
+	        var arg = this.parsePattern(params);
+	        if (this.match('=')) {
+	            this.throwError(messages_1.Messages.DefaultRestParameter);
+	        }
+	        if (!this.match(')')) {
+	            this.throwError(messages_1.Messages.ParameterAfterRestParameter);
+	        }
+	        return this.finalize(node, new Node.RestElement(arg));
+	    };
+	    Parser.prototype.parseFormalParameter = function (options) {
+	        var params = [];
+	        var param = this.match('...') ? this.parseRestElement(params) : this.parsePatternWithDefault(params);
+	        for (var i = 0; i < params.length; i++) {
+	            this.validateParam(options, params[i], params[i].value);
+	        }
+	        options.simple = options.simple && (param instanceof Node.Identifier);
+	        options.params.push(param);
+	    };
+	    Parser.prototype.parseFormalParameters = function (firstRestricted) {
+	        var options;
+	        options = {
+	            simple: true,
+	            params: [],
+	            firstRestricted: firstRestricted
+	        };
+	        this.expect('(');
+	        if (!this.match(')')) {
+	            options.paramSet = {};
+	            while (this.lookahead.type !== 2 /* EOF */) {
+	                this.parseFormalParameter(options);
+	                if (this.match(')')) {
+	                    break;
+	                }
+	                this.expect(',');
+	                if (this.match(')')) {
+	                    break;
+	                }
+	            }
+	        }
+	        this.expect(')');
+	        return {
+	            simple: options.simple,
+	            params: options.params,
+	            stricted: options.stricted,
+	            firstRestricted: options.firstRestricted,
+	            message: options.message
+	        };
+	    };
+	    Parser.prototype.matchAsyncFunction = function () {
+	        var match = this.matchContextualKeyword('async');
+	        if (match) {
+	            var state = this.scanner.saveState();
+	            this.scanner.scanComments();
+	            var next = this.scanner.lex();
+	            this.scanner.restoreState(state);
+	            match = (state.lineNumber === next.lineNumber) && (next.type === 4 /* Keyword */) && (next.value === 'function');
+	        }
+	        return match;
+	    };
+	    Parser.prototype.parseFunctionDeclaration = function (identifierIsOptional) {
+	        var node = this.createNode();
+	        var isAsync = this.matchContextualKeyword('async');
+	        if (isAsync) {
+	            this.nextToken();
+	        }
+	        this.expectKeyword('function');
+	        var isGenerator = isAsync ? false : this.match('*');
+	        if (isGenerator) {
+	            this.nextToken();
+	        }
+	        var message;
+	        var id = null;
+	        var firstRestricted = null;
+	        if (!identifierIsOptional || !this.match('(')) {
+	            var token = this.lookahead;
+	            id = this.parseVariableIdentifier();
+	            if (this.context.strict) {
+	                if (this.scanner.isRestrictedWord(token.value)) {
+	                    this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName);
+	                }
+	            }
+	            else {
+	                if (this.scanner.isRestrictedWord(token.value)) {
+	                    firstRestricted = token;
+	                    message = messages_1.Messages.StrictFunctionName;
+	                }
+	                else if (this.scanner.isStrictModeReservedWord(token.value)) {
+	                    firstRestricted = token;
+	                    message = messages_1.Messages.StrictReservedWord;
+	                }
+	            }
+	        }
+	        var previousAllowAwait = this.context.await;
+	        var previousAllowYield = this.context.allowYield;
+	        this.context.await = isAsync;
+	        this.context.allowYield = !isGenerator;
+	        var formalParameters = this.parseFormalParameters(firstRestricted);
+	        var params = formalParameters.params;
+	        var stricted = formalParameters.stricted;
+	        firstRestricted = formalParameters.firstRestricted;
+	        if (formalParameters.message) {
+	            message = formalParameters.message;
+	        }
+	        var previousStrict = this.context.strict;
+	        var previousAllowStrictDirective = this.context.allowStrictDirective;
+	        this.context.allowStrictDirective = formalParameters.simple;
+	        var body = this.parseFunctionSourceElements();
+	        if (this.context.strict && firstRestricted) {
+	            this.throwUnexpectedToken(firstRestricted, message);
+	        }
+	        if (this.context.strict && stricted) {
+	            this.tolerateUnexpectedToken(stricted, message);
+	        }
+	        this.context.strict = previousStrict;
+	        this.context.allowStrictDirective = previousAllowStrictDirective;
+	        this.context.await = previousAllowAwait;
+	        this.context.allowYield = previousAllowYield;
+	        return isAsync ? this.finalize(node, new Node.AsyncFunctionDeclaration(id, params, body)) :
+	            this.finalize(node, new Node.FunctionDeclaration(id, params, body, isGenerator));
+	    };
+	    Parser.prototype.parseFunctionExpression = function () {
+	        var node = this.createNode();
+	        var isAsync = this.matchContextualKeyword('async');
+	        if (isAsync) {
+	            this.nextToken();
+	        }
+	        this.expectKeyword('function');
+	        var isGenerator = isAsync ? false : this.match('*');
+	        if (isGenerator) {
+	            this.nextToken();
+	        }
+	        var message;
+	        var id = null;
+	        var firstRestricted;
+	        var previousAllowAwait = this.context.await;
+	        var previousAllowYield = this.context.allowYield;
+	        this.context.await = isAsync;
+	        this.context.allowYield = !isGenerator;
+	        if (!this.match('(')) {
+	            var token = this.lookahead;
+	            id = (!this.context.strict && !isGenerator && this.matchKeyword('yield')) ? this.parseIdentifierName() : this.parseVariableIdentifier();
+	            if (this.context.strict) {
+	                if (this.scanner.isRestrictedWord(token.value)) {
+	                    this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName);
+	                }
+	            }
+	            else {
+	                if (this.scanner.isRestrictedWord(token.value)) {
+	                    firstRestricted = token;
+	                    message = messages_1.Messages.StrictFunctionName;
+	                }
+	                else if (this.scanner.isStrictModeReservedWord(token.value)) {
+	                    firstRestricted = token;
+	                    message = messages_1.Messages.StrictReservedWord;
+	                }
+	            }
+	        }
+	        var formalParameters = this.parseFormalParameters(firstRestricted);
+	        var params = formalParameters.params;
+	        var stricted = formalParameters.stricted;
+	        firstRestricted = formalParameters.firstRestricted;
+	        if (formalParameters.message) {
+	            message = formalParameters.message;
+	        }
+	        var previousStrict = this.context.strict;
+	        var previousAllowStrictDirective = this.context.allowStrictDirective;
+	        this.context.allowStrictDirective = formalParameters.simple;
+	        var body = this.parseFunctionSourceElements();
+	        if (this.context.strict && firstRestricted) {
+	            this.throwUnexpectedToken(firstRestricted, message);
+	        }
+	        if (this.context.strict && stricted) {
+	            this.tolerateUnexpectedToken(stricted, message);
+	        }
+	        this.context.strict = previousStrict;
+	        this.context.allowStrictDirective = previousAllowStrictDirective;
+	        this.context.await = previousAllowAwait;
+	        this.context.allowYield = previousAllowYield;
+	        return isAsync ? this.finalize(node, new Node.AsyncFunctionExpression(id, params, body)) :
+	            this.finalize(node, new Node.FunctionExpression(id, params, body, isGenerator));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-directive-prologues-and-the-use-strict-directive
+	    Parser.prototype.parseDirective = function () {
+	        var token = this.lookahead;
+	        var node = this.createNode();
+	        var expr = this.parseExpression();
+	        var directive = (expr.type === syntax_1.Syntax.Literal) ? this.getTokenRaw(token).slice(1, -1) : null;
+	        this.consumeSemicolon();
+	        return this.finalize(node, directive ? new Node.Directive(expr, directive) : new Node.ExpressionStatement(expr));
+	    };
+	    Parser.prototype.parseDirectivePrologues = function () {
+	        var firstRestricted = null;
+	        var body = [];
+	        while (true) {
+	            var token = this.lookahead;
+	            if (token.type !== 8 /* StringLiteral */) {
+	                break;
+	            }
+	            var statement = this.parseDirective();
+	            body.push(statement);
+	            var directive = statement.directive;
+	            if (typeof directive !== 'string') {
+	                break;
+	            }
+	            if (directive === 'use strict') {
+	                this.context.strict = true;
+	                if (firstRestricted) {
+	                    this.tolerateUnexpectedToken(firstRestricted, messages_1.Messages.StrictOctalLiteral);
+	                }
+	                if (!this.context.allowStrictDirective) {
+	                    this.tolerateUnexpectedToken(token, messages_1.Messages.IllegalLanguageModeDirective);
+	                }
+	            }
+	            else {
+	                if (!firstRestricted && token.octal) {
+	                    firstRestricted = token;
+	                }
+	            }
+	        }
+	        return body;
+	    };
+	    // https://tc39.github.io/ecma262/#sec-method-definitions
+	    Parser.prototype.qualifiedPropertyName = function (token) {
+	        switch (token.type) {
+	            case 3 /* Identifier */:
+	            case 8 /* StringLiteral */:
+	            case 1 /* BooleanLiteral */:
+	            case 5 /* NullLiteral */:
+	            case 6 /* NumericLiteral */:
+	            case 4 /* Keyword */:
+	                return true;
+	            case 7 /* Punctuator */:
+	                return token.value === '[';
+	            default:
+	                break;
+	        }
+	        return false;
+	    };
+	    Parser.prototype.parseGetterMethod = function () {
+	        var node = this.createNode();
+	        var isGenerator = false;
+	        var previousAllowYield = this.context.allowYield;
+	        this.context.allowYield = !isGenerator;
+	        var formalParameters = this.parseFormalParameters();
+	        if (formalParameters.params.length > 0) {
+	            this.tolerateError(messages_1.Messages.BadGetterArity);
+	        }
+	        var method = this.parsePropertyMethod(formalParameters);
+	        this.context.allowYield = previousAllowYield;
+	        return this.finalize(node, new Node.FunctionExpression(null, formalParameters.params, method, isGenerator));
+	    };
+	    Parser.prototype.parseSetterMethod = function () {
+	        var node = this.createNode();
+	        var isGenerator = false;
+	        var previousAllowYield = this.context.allowYield;
+	        this.context.allowYield = !isGenerator;
+	        var formalParameters = this.parseFormalParameters();
+	        if (formalParameters.params.length !== 1) {
+	            this.tolerateError(messages_1.Messages.BadSetterArity);
+	        }
+	        else if (formalParameters.params[0] instanceof Node.RestElement) {
+	            this.tolerateError(messages_1.Messages.BadSetterRestParameter);
+	        }
+	        var method = this.parsePropertyMethod(formalParameters);
+	        this.context.allowYield = previousAllowYield;
+	        return this.finalize(node, new Node.FunctionExpression(null, formalParameters.params, method, isGenerator));
+	    };
+	    Parser.prototype.parseGeneratorMethod = function () {
+	        var node = this.createNode();
+	        var isGenerator = true;
+	        var previousAllowYield = this.context.allowYield;
+	        this.context.allowYield = true;
+	        var params = this.parseFormalParameters();
+	        this.context.allowYield = false;
+	        var method = this.parsePropertyMethod(params);
+	        this.context.allowYield = previousAllowYield;
+	        return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-generator-function-definitions
+	    Parser.prototype.isStartOfExpression = function () {
+	        var start = true;
+	        var value = this.lookahead.value;
+	        switch (this.lookahead.type) {
+	            case 7 /* Punctuator */:
+	                start = (value === '[') || (value === '(') || (value === '{') ||
+	                    (value === '+') || (value === '-') ||
+	                    (value === '!') || (value === '~') ||
+	                    (value === '++') || (value === '--') ||
+	                    (value === '/') || (value === '/='); // regular expression literal
+	                break;
+	            case 4 /* Keyword */:
+	                start = (value === 'class') || (value === 'delete') ||
+	                    (value === 'function') || (value === 'let') || (value === 'new') ||
+	                    (value === 'super') || (value === 'this') || (value === 'typeof') ||
+	                    (value === 'void') || (value === 'yield');
+	                break;
+	            default:
+	                break;
+	        }
+	        return start;
+	    };
+	    Parser.prototype.parseYieldExpression = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('yield');
+	        var argument = null;
+	        var delegate = false;
+	        if (!this.hasLineTerminator) {
+	            var previousAllowYield = this.context.allowYield;
+	            this.context.allowYield = false;
+	            delegate = this.match('*');
+	            if (delegate) {
+	                this.nextToken();
+	                argument = this.parseAssignmentExpression();
+	            }
+	            else if (this.isStartOfExpression()) {
+	                argument = this.parseAssignmentExpression();
+	            }
+	            this.context.allowYield = previousAllowYield;
+	        }
+	        return this.finalize(node, new Node.YieldExpression(argument, delegate));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-class-definitions
+	    Parser.prototype.parseClassElement = function (hasConstructor) {
+	        var token = this.lookahead;
+	        var node = this.createNode();
+	        var kind = '';
+	        var key = null;
+	        var value = null;
+	        var computed = false;
+	        var method = false;
+	        var isStatic = false;
+	        var isAsync = false;
+	        if (this.match('*')) {
+	            this.nextToken();
+	        }
+	        else {
+	            computed = this.match('[');
+	            key = this.parseObjectPropertyKey();
+	            var id = key;
+	            if (id.name === 'static' && (this.qualifiedPropertyName(this.lookahead) || this.match('*'))) {
+	                token = this.lookahead;
+	                isStatic = true;
+	                computed = this.match('[');
+	                if (this.match('*')) {
+	                    this.nextToken();
+	                }
+	                else {
+	                    key = this.parseObjectPropertyKey();
+	                }
+	            }
+	            if ((token.type === 3 /* Identifier */) && !this.hasLineTerminator && (token.value === 'async')) {
+	                var punctuator = this.lookahead.value;
+	                if (punctuator !== ':' && punctuator !== '(' && punctuator !== '*') {
+	                    isAsync = true;
+	                    token = this.lookahead;
+	                    key = this.parseObjectPropertyKey();
+	                    if (token.type === 3 /* Identifier */ && token.value === 'constructor') {
+	                        this.tolerateUnexpectedToken(token, messages_1.Messages.ConstructorIsAsync);
+	                    }
+	                }
+	            }
+	        }
+	        var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead);
+	        if (token.type === 3 /* Identifier */) {
+	            if (token.value === 'get' && lookaheadPropertyKey) {
+	                kind = 'get';
+	                computed = this.match('[');
+	                key = this.parseObjectPropertyKey();
+	                this.context.allowYield = false;
+	                value = this.parseGetterMethod();
+	            }
+	            else if (token.value === 'set' && lookaheadPropertyKey) {
+	                kind = 'set';
+	                computed = this.match('[');
+	                key = this.parseObjectPropertyKey();
+	                value = this.parseSetterMethod();
+	            }
+	        }
+	        else if (token.type === 7 /* Punctuator */ && token.value === '*' && lookaheadPropertyKey) {
+	            kind = 'init';
+	            computed = this.match('[');
+	            key = this.parseObjectPropertyKey();
+	            value = this.parseGeneratorMethod();
+	            method = true;
+	        }
+	        if (!kind && key && this.match('(')) {
+	            kind = 'init';
+	            value = isAsync ? this.parsePropertyMethodAsyncFunction() : this.parsePropertyMethodFunction();
+	            method = true;
+	        }
+	        if (!kind) {
+	            this.throwUnexpectedToken(this.lookahead);
+	        }
+	        if (kind === 'init') {
+	            kind = 'method';
+	        }
+	        if (!computed) {
+	            if (isStatic && this.isPropertyKey(key, 'prototype')) {
+	                this.throwUnexpectedToken(token, messages_1.Messages.StaticPrototype);
+	            }
+	            if (!isStatic && this.isPropertyKey(key, 'constructor')) {
+	                if (kind !== 'method' || !method || (value && value.generator)) {
+	                    this.throwUnexpectedToken(token, messages_1.Messages.ConstructorSpecialMethod);
+	                }
+	                if (hasConstructor.value) {
+	                    this.throwUnexpectedToken(token, messages_1.Messages.DuplicateConstructor);
+	                }
+	                else {
+	                    hasConstructor.value = true;
+	                }
+	                kind = 'constructor';
+	            }
+	        }
+	        return this.finalize(node, new Node.MethodDefinition(key, computed, value, kind, isStatic));
+	    };
+	    Parser.prototype.parseClassElementList = function () {
+	        var body = [];
+	        var hasConstructor = { value: false };
+	        this.expect('{');
+	        while (!this.match('}')) {
+	            if (this.match(';')) {
+	                this.nextToken();
+	            }
+	            else {
+	                body.push(this.parseClassElement(hasConstructor));
+	            }
+	        }
+	        this.expect('}');
+	        return body;
+	    };
+	    Parser.prototype.parseClassBody = function () {
+	        var node = this.createNode();
+	        var elementList = this.parseClassElementList();
+	        return this.finalize(node, new Node.ClassBody(elementList));
+	    };
+	    Parser.prototype.parseClassDeclaration = function (identifierIsOptional) {
+	        var node = this.createNode();
+	        var previousStrict = this.context.strict;
+	        this.context.strict = true;
+	        this.expectKeyword('class');
+	        var id = (identifierIsOptional && (this.lookahead.type !== 3 /* Identifier */)) ? null : this.parseVariableIdentifier();
+	        var superClass = null;
+	        if (this.matchKeyword('extends')) {
+	            this.nextToken();
+	            superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall);
+	        }
+	        var classBody = this.parseClassBody();
+	        this.context.strict = previousStrict;
+	        return this.finalize(node, new Node.ClassDeclaration(id, superClass, classBody));
+	    };
+	    Parser.prototype.parseClassExpression = function () {
+	        var node = this.createNode();
+	        var previousStrict = this.context.strict;
+	        this.context.strict = true;
+	        this.expectKeyword('class');
+	        var id = (this.lookahead.type === 3 /* Identifier */) ? this.parseVariableIdentifier() : null;
+	        var superClass = null;
+	        if (this.matchKeyword('extends')) {
+	            this.nextToken();
+	            superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall);
+	        }
+	        var classBody = this.parseClassBody();
+	        this.context.strict = previousStrict;
+	        return this.finalize(node, new Node.ClassExpression(id, superClass, classBody));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-scripts
+	    // https://tc39.github.io/ecma262/#sec-modules
+	    Parser.prototype.parseModule = function () {
+	        this.context.strict = true;
+	        this.context.isModule = true;
+	        this.scanner.isModule = true;
+	        var node = this.createNode();
+	        var body = this.parseDirectivePrologues();
+	        while (this.lookahead.type !== 2 /* EOF */) {
+	            body.push(this.parseStatementListItem());
+	        }
+	        return this.finalize(node, new Node.Module(body));
+	    };
+	    Parser.prototype.parseScript = function () {
+	        var node = this.createNode();
+	        var body = this.parseDirectivePrologues();
+	        while (this.lookahead.type !== 2 /* EOF */) {
+	            body.push(this.parseStatementListItem());
+	        }
+	        return this.finalize(node, new Node.Script(body));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-imports
+	    Parser.prototype.parseModuleSpecifier = function () {
+	        var node = this.createNode();
+	        if (this.lookahead.type !== 8 /* StringLiteral */) {
+	            this.throwError(messages_1.Messages.InvalidModuleSpecifier);
+	        }
+	        var token = this.nextToken();
+	        var raw = this.getTokenRaw(token);
+	        return this.finalize(node, new Node.Literal(token.value, raw));
+	    };
+	    // import {<foo as bar>} ...;
+	    Parser.prototype.parseImportSpecifier = function () {
+	        var node = this.createNode();
+	        var imported;
+	        var local;
+	        if (this.lookahead.type === 3 /* Identifier */) {
+	            imported = this.parseVariableIdentifier();
+	            local = imported;
+	            if (this.matchContextualKeyword('as')) {
+	                this.nextToken();
+	                local = this.parseVariableIdentifier();
+	            }
+	        }
+	        else {
+	            imported = this.parseIdentifierName();
+	            local = imported;
+	            if (this.matchContextualKeyword('as')) {
+	                this.nextToken();
+	                local = this.parseVariableIdentifier();
+	            }
+	            else {
+	                this.throwUnexpectedToken(this.nextToken());
+	            }
+	        }
+	        return this.finalize(node, new Node.ImportSpecifier(local, imported));
+	    };
+	    // {foo, bar as bas}
+	    Parser.prototype.parseNamedImports = function () {
+	        this.expect('{');
+	        var specifiers = [];
+	        while (!this.match('}')) {
+	            specifiers.push(this.parseImportSpecifier());
+	            if (!this.match('}')) {
+	                this.expect(',');
+	            }
+	        }
+	        this.expect('}');
+	        return specifiers;
+	    };
+	    // import <foo> ...;
+	    Parser.prototype.parseImportDefaultSpecifier = function () {
+	        var node = this.createNode();
+	        var local = this.parseIdentifierName();
+	        return this.finalize(node, new Node.ImportDefaultSpecifier(local));
+	    };
+	    // import <* as foo> ...;
+	    Parser.prototype.parseImportNamespaceSpecifier = function () {
+	        var node = this.createNode();
+	        this.expect('*');
+	        if (!this.matchContextualKeyword('as')) {
+	            this.throwError(messages_1.Messages.NoAsAfterImportNamespace);
+	        }
+	        this.nextToken();
+	        var local = this.parseIdentifierName();
+	        return this.finalize(node, new Node.ImportNamespaceSpecifier(local));
+	    };
+	    Parser.prototype.parseImportDeclaration = function () {
+	        if (this.context.inFunctionBody) {
+	            this.throwError(messages_1.Messages.IllegalImportDeclaration);
+	        }
+	        var node = this.createNode();
+	        this.expectKeyword('import');
+	        var src;
+	        var specifiers = [];
+	        if (this.lookahead.type === 8 /* StringLiteral */) {
+	            // import 'foo';
+	            src = this.parseModuleSpecifier();
+	        }
+	        else {
+	            if (this.match('{')) {
+	                // import {bar}
+	                specifiers = specifiers.concat(this.parseNamedImports());
+	            }
+	            else if (this.match('*')) {
+	                // import * as foo
+	                specifiers.push(this.parseImportNamespaceSpecifier());
+	            }
+	            else if (this.isIdentifierName(this.lookahead) && !this.matchKeyword('default')) {
+	                // import foo
+	                specifiers.push(this.parseImportDefaultSpecifier());
+	                if (this.match(',')) {
+	                    this.nextToken();
+	                    if (this.match('*')) {
+	                        // import foo, * as foo
+	                        specifiers.push(this.parseImportNamespaceSpecifier());
+	                    }
+	                    else if (this.match('{')) {
+	                        // import foo, {bar}
+	                        specifiers = specifiers.concat(this.parseNamedImports());
+	                    }
+	                    else {
+	                        this.throwUnexpectedToken(this.lookahead);
+	                    }
+	                }
+	            }
+	            else {
+	                this.throwUnexpectedToken(this.nextToken());
+	            }
+	            if (!this.matchContextualKeyword('from')) {
+	                var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause;
+	                this.throwError(message, this.lookahead.value);
+	            }
+	            this.nextToken();
+	            src = this.parseModuleSpecifier();
+	        }
+	        this.consumeSemicolon();
+	        return this.finalize(node, new Node.ImportDeclaration(specifiers, src));
+	    };
+	    // https://tc39.github.io/ecma262/#sec-exports
+	    Parser.prototype.parseExportSpecifier = function () {
+	        var node = this.createNode();
+	        var local = this.parseIdentifierName();
+	        var exported = local;
+	        if (this.matchContextualKeyword('as')) {
+	            this.nextToken();
+	            exported = this.parseIdentifierName();
+	        }
+	        return this.finalize(node, new Node.ExportSpecifier(local, exported));
+	    };
+	    Parser.prototype.parseExportDeclaration = function () {
+	        if (this.context.inFunctionBody) {
+	            this.throwError(messages_1.Messages.IllegalExportDeclaration);
+	        }
+	        var node = this.createNode();
+	        this.expectKeyword('export');
+	        var exportDeclaration;
+	        if (this.matchKeyword('default')) {
+	            // export default ...
+	            this.nextToken();
+	            if (this.matchKeyword('function')) {
+	                // export default function foo () {}
+	                // export default function () {}
+	                var declaration = this.parseFunctionDeclaration(true);
+	                exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration));
+	            }
+	            else if (this.matchKeyword('class')) {
+	                // export default class foo {}
+	                var declaration = this.parseClassDeclaration(true);
+	                exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration));
+	            }
+	            else if (this.matchContextualKeyword('async')) {
+	                // export default async function f () {}
+	                // export default async function () {}
+	                // export default async x => x
+	                var declaration = this.matchAsyncFunction() ? this.parseFunctionDeclaration(true) : this.parseAssignmentExpression();
+	                exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration));
+	            }
+	            else {
+	                if (this.matchContextualKeyword('from')) {
+	                    this.throwError(messages_1.Messages.UnexpectedToken, this.lookahead.value);
+	                }
+	                // export default {};
+	                // export default [];
+	                // export default (1 + 2);
+	                var declaration = this.match('{') ? this.parseObjectInitializer() :
+	                    this.match('[') ? this.parseArrayInitializer() : this.parseAssignmentExpression();
+	                this.consumeSemicolon();
+	                exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration));
+	            }
+	        }
+	        else if (this.match('*')) {
+	            // export * from 'foo';
+	            this.nextToken();
+	            if (!this.matchContextualKeyword('from')) {
+	                var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause;
+	                this.throwError(message, this.lookahead.value);
+	            }
+	            this.nextToken();
+	            var src = this.parseModuleSpecifier();
+	            this.consumeSemicolon();
+	            exportDeclaration = this.finalize(node, new Node.ExportAllDeclaration(src));
+	        }
+	        else if (this.lookahead.type === 4 /* Keyword */) {
+	            // export var f = 1;
+	            var declaration = void 0;
+	            switch (this.lookahead.value) {
+	                case 'let':
+	                case 'const':
+	                    declaration = this.parseLexicalDeclaration({ inFor: false });
+	                    break;
+	                case 'var':
+	                case 'class':
+	                case 'function':
+	                    declaration = this.parseStatementListItem();
+	                    break;
+	                default:
+	                    this.throwUnexpectedToken(this.lookahead);
+	            }
+	            exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(declaration, [], null));
+	        }
+	        else if (this.matchAsyncFunction()) {
+	            var declaration = this.parseFunctionDeclaration();
+	            exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(declaration, [], null));
+	        }
+	        else {
+	            var specifiers = [];
+	            var source = null;
+	            var isExportFromIdentifier = false;
+	            this.expect('{');
+	            while (!this.match('}')) {
+	                isExportFromIdentifier = isExportFromIdentifier || this.matchKeyword('default');
+	                specifiers.push(this.parseExportSpecifier());
+	                if (!this.match('}')) {
+	                    this.expect(',');
+	                }
+	            }
+	            this.expect('}');
+	            if (this.matchContextualKeyword('from')) {
+	                // export {default} from 'foo';
+	                // export {foo} from 'foo';
+	                this.nextToken();
+	                source = this.parseModuleSpecifier();
+	                this.consumeSemicolon();
+	            }
+	            else if (isExportFromIdentifier) {
+	                // export {default}; // missing fromClause
+	                var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause;
+	                this.throwError(message, this.lookahead.value);
+	            }
+	            else {
+	                // export {foo};
+	                this.consumeSemicolon();
+	            }
+	            exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(null, specifiers, source));
+	        }
+	        return exportDeclaration;
+	    };
+	    return Parser;
+	}());
+	exports.Parser = Parser;
+
+
+/***/ },
+/* 9 */
+/***/ function(module, exports) {
+
+	"use strict";
+	// Ensure the condition is true, otherwise throw an error.
+	// This is only to have a better contract semantic, i.e. another safety net
+	// to catch a logic error. The condition shall be fulfilled in normal case.
+	// Do NOT use this to enforce a certain condition on any user input.
+	Object.defineProperty(exports, "__esModule", { value: true });
+	function assert(condition, message) {
+	    /* istanbul ignore if */
+	    if (!condition) {
+	        throw new Error('ASSERT: ' + message);
+	    }
+	}
+	exports.assert = assert;
+
+
+/***/ },
+/* 10 */
+/***/ function(module, exports) {
+
+	"use strict";
+	/* tslint:disable:max-classes-per-file */
+	Object.defineProperty(exports, "__esModule", { value: true });
+	var ErrorHandler = (function () {
+	    function ErrorHandler() {
+	        this.errors = [];
+	        this.tolerant = false;
+	    }
+	    ErrorHandler.prototype.recordError = function (error) {
+	        this.errors.push(error);
+	    };
+	    ErrorHandler.prototype.tolerate = function (error) {
+	        if (this.tolerant) {
+	            this.recordError(error);
+	        }
+	        else {
+	            throw error;
+	        }
+	    };
+	    ErrorHandler.prototype.constructError = function (msg, column) {
+	        var error = new Error(msg);
+	        try {
+	            throw error;
+	        }
+	        catch (base) {
+	            /* istanbul ignore else */
+	            if (Object.create && Object.defineProperty) {
+	                error = Object.create(base);
+	                Object.defineProperty(error, 'column', { value: column });
+	            }
+	        }
+	        /* istanbul ignore next */
+	        return error;
+	    };
+	    ErrorHandler.prototype.createError = function (index, line, col, description) {
+	        var msg = 'Line ' + line + ': ' + description;
+	        var error = this.constructError(msg, col);
+	        error.index = index;
+	        error.lineNumber = line;
+	        error.description = description;
+	        return error;
+	    };
+	    ErrorHandler.prototype.throwError = function (index, line, col, description) {
+	        throw this.createError(index, line, col, description);
+	    };
+	    ErrorHandler.prototype.tolerateError = function (index, line, col, description) {
+	        var error = this.createError(index, line, col, description);
+	        if (this.tolerant) {
+	            this.recordError(error);
+	        }
+	        else {
+	            throw error;
+	        }
+	    };
+	    return ErrorHandler;
+	}());
+	exports.ErrorHandler = ErrorHandler;
+
+
+/***/ },
+/* 11 */
+/***/ function(module, exports) {
+
+	"use strict";
+	Object.defineProperty(exports, "__esModule", { value: true });
+	// Error messages should be identical to V8.
+	exports.Messages = {
+	    BadGetterArity: 'Getter must not have any formal parameters',
+	    BadSetterArity: 'Setter must have exactly one formal parameter',
+	    BadSetterRestParameter: 'Setter function argument must not be a rest parameter',
+	    ConstructorIsAsync: 'Class constructor may not be an async method',
+	    ConstructorSpecialMethod: 'Class constructor may not be an accessor',
+	    DeclarationMissingInitializer: 'Missing initializer in %0 declaration',
+	    DefaultRestParameter: 'Unexpected token =',
+	    DuplicateBinding: 'Duplicate binding %0',
+	    DuplicateConstructor: 'A class may only have one constructor',
+	    DuplicateProtoProperty: 'Duplicate __proto__ fields are not allowed in object literals',
+	    ForInOfLoopInitializer: '%0 loop variable declaration may not have an initializer',
+	    GeneratorInLegacyContext: 'Generator declarations are not allowed in legacy contexts',
+	    IllegalBreak: 'Illegal break statement',
+	    IllegalContinue: 'Illegal continue statement',
+	    IllegalExportDeclaration: 'Unexpected token',
+	    IllegalImportDeclaration: 'Unexpected token',
+	    IllegalLanguageModeDirective: 'Illegal \'use strict\' directive in function with non-simple parameter list',
+	    IllegalReturn: 'Illegal return statement',
+	    InvalidEscapedReservedWord: 'Keyword must not contain escaped characters',
+	    InvalidHexEscapeSequence: 'Invalid hexadecimal escape sequence',
+	    InvalidLHSInAssignment: 'Invalid left-hand side in assignment',
+	    InvalidLHSInForIn: 'Invalid left-hand side in for-in',
+	    InvalidLHSInForLoop: 'Invalid left-hand side in for-loop',
+	    InvalidModuleSpecifier: 'Unexpected token',
+	    InvalidRegExp: 'Invalid regular expression',
+	    LetInLexicalBinding: 'let is disallowed as a lexically bound name',
+	    MissingFromClause: 'Unexpected token',
+	    MultipleDefaultsInSwitch: 'More than one default clause in switch statement',
+	    NewlineAfterThrow: 'Illegal newline after throw',
+	    NoAsAfterImportNamespace: 'Unexpected token',
+	    NoCatchOrFinally: 'Missing catch or finally after try',
+	    ParameterAfterRestParameter: 'Rest parameter must be last formal parameter',
+	    Redeclaration: '%0 \'%1\' has already been declared',
+	    StaticPrototype: 'Classes may not have static property named prototype',
+	    StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode',
+	    StrictDelete: 'Delete of an unqualified identifier in strict mode.',
+	    StrictFunction: 'In strict mode code, functions can only be declared at top level or inside a block',
+	    StrictFunctionName: 'Function name may not be eval or arguments in strict mode',
+	    StrictLHSAssignment: 'Assignment to eval or arguments is not allowed in strict mode',
+	    StrictLHSPostfix: 'Postfix increment/decrement may not have eval or arguments operand in strict mode',
+	    StrictLHSPrefix: 'Prefix increment/decrement may not have eval or arguments operand in strict mode',
+	    StrictModeWith: 'Strict mode code may not include a with statement',
+	    StrictOctalLiteral: 'Octal literals are not allowed in strict mode.',
+	    StrictParamDupe: 'Strict mode function may not have duplicate parameter names',
+	    StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode',
+	    StrictReservedWord: 'Use of future reserved word in strict mode',
+	    StrictVarName: 'Variable name may not be eval or arguments in strict mode',
+	    TemplateOctalLiteral: 'Octal literals are not allowed in template strings.',
+	    UnexpectedEOS: 'Unexpected end of input',
+	    UnexpectedIdentifier: 'Unexpected identifier',
+	    UnexpectedNumber: 'Unexpected number',
+	    UnexpectedReserved: 'Unexpected reserved word',
+	    UnexpectedString: 'Unexpected string',
+	    UnexpectedTemplate: 'Unexpected quasi %0',
+	    UnexpectedToken: 'Unexpected token %0',
+	    UnexpectedTokenIllegal: 'Unexpected token ILLEGAL',
+	    UnknownLabel: 'Undefined label \'%0\'',
+	    UnterminatedRegExp: 'Invalid regular expression: missing /'
+	};
+
+
+/***/ },
+/* 12 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+	Object.defineProperty(exports, "__esModule", { value: true });
+	var assert_1 = __webpack_require__(9);
+	var character_1 = __webpack_require__(4);
+	var messages_1 = __webpack_require__(11);
+	function hexValue(ch) {
+	    return '0123456789abcdef'.indexOf(ch.toLowerCase());
+	}
+	function octalValue(ch) {
+	    return '01234567'.indexOf(ch);
+	}
+	var Scanner = (function () {
+	    function Scanner(code, handler) {
+	        this.source = code;
+	        this.errorHandler = handler;
+	        this.trackComment = false;
+	        this.isModule = false;
+	        this.length = code.length;
+	        this.index = 0;
+	        this.lineNumber = (code.length > 0) ? 1 : 0;
+	        this.lineStart = 0;
+	        this.curlyStack = [];
+	    }
+	    Scanner.prototype.saveState = function () {
+	        return {
+	            index: this.index,
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart
+	        };
+	    };
+	    Scanner.prototype.restoreState = function (state) {
+	        this.index = state.index;
+	        this.lineNumber = state.lineNumber;
+	        this.lineStart = state.lineStart;
+	    };
+	    Scanner.prototype.eof = function () {
+	        return this.index >= this.length;
+	    };
+	    Scanner.prototype.throwUnexpectedToken = function (message) {
+	        if (message === void 0) { message = messages_1.Messages.UnexpectedTokenIllegal; }
+	        return this.errorHandler.throwError(this.index, this.lineNumber, this.index - this.lineStart + 1, message);
+	    };
+	    Scanner.prototype.tolerateUnexpectedToken = function (message) {
+	        if (message === void 0) { message = messages_1.Messages.UnexpectedTokenIllegal; }
+	        this.errorHandler.tolerateError(this.index, this.lineNumber, this.index - this.lineStart + 1, message);
+	    };
+	    // https://tc39.github.io/ecma262/#sec-comments
+	    Scanner.prototype.skipSingleLineComment = function (offset) {
+	        var comments = [];
+	        var start, loc;
+	        if (this.trackComment) {
+	            comments = [];
+	            start = this.index - offset;
+	            loc = {
+	                start: {
+	                    line: this.lineNumber,
+	                    column: this.index - this.lineStart - offset
+	                },
+	                end: {}
+	            };
+	        }
+	        while (!this.eof()) {
+	            var ch = this.source.charCodeAt(this.index);
+	            ++this.index;
+	            if (character_1.Character.isLineTerminator(ch)) {
+	                if (this.trackComment) {
+	                    loc.end = {
+	                        line: this.lineNumber,
+	                        column: this.index - this.lineStart - 1
+	                    };
+	                    var entry = {
+	                        multiLine: false,
+	                        slice: [start + offset, this.index - 1],
+	                        range: [start, this.index - 1],
+	                        loc: loc
+	                    };
+	                    comments.push(entry);
+	                }
+	                if (ch === 13 && this.source.charCodeAt(this.index) === 10) {
+	                    ++this.index;
+	                }
+	                ++this.lineNumber;
+	                this.lineStart = this.index;
+	                return comments;
+	            }
+	        }
+	        if (this.trackComment) {
+	            loc.end = {
+	                line: this.lineNumber,
+	                column: this.index - this.lineStart
+	            };
+	            var entry = {
+	                multiLine: false,
+	                slice: [start + offset, this.index],
+	                range: [start, this.index],
+	                loc: loc
+	            };
+	            comments.push(entry);
+	        }
+	        return comments;
+	    };
+	    Scanner.prototype.skipMultiLineComment = function () {
+	        var comments = [];
+	        var start, loc;
+	        if (this.trackComment) {
+	            comments = [];
+	            start = this.index - 2;
+	            loc = {
+	                start: {
+	                    line: this.lineNumber,
+	                    column: this.index - this.lineStart - 2
+	                },
+	                end: {}
+	            };
+	        }
+	        while (!this.eof()) {
+	            var ch = this.source.charCodeAt(this.index);
+	            if (character_1.Character.isLineTerminator(ch)) {
+	                if (ch === 0x0D && this.source.charCodeAt(this.index + 1) === 0x0A) {
+	                    ++this.index;
+	                }
+	                ++this.lineNumber;
+	                ++this.index;
+	                this.lineStart = this.index;
+	            }
+	            else if (ch === 0x2A) {
+	                // Block comment ends with '*/'.
+	                if (this.source.charCodeAt(this.index + 1) === 0x2F) {
+	                    this.index += 2;
+	                    if (this.trackComment) {
+	                        loc.end = {
+	                            line: this.lineNumber,
+	                            column: this.index - this.lineStart
+	                        };
+	                        var entry = {
+	                            multiLine: true,
+	                            slice: [start + 2, this.index - 2],
+	                            range: [start, this.index],
+	                            loc: loc
+	                        };
+	                        comments.push(entry);
+	                    }
+	                    return comments;
+	                }
+	                ++this.index;
+	            }
+	            else {
+	                ++this.index;
+	            }
+	        }
+	        // Ran off the end of the file - the whole thing is a comment
+	        if (this.trackComment) {
+	            loc.end = {
+	                line: this.lineNumber,
+	                column: this.index - this.lineStart
+	            };
+	            var entry = {
+	                multiLine: true,
+	                slice: [start + 2, this.index],
+	                range: [start, this.index],
+	                loc: loc
+	            };
+	            comments.push(entry);
+	        }
+	        this.tolerateUnexpectedToken();
+	        return comments;
+	    };
+	    Scanner.prototype.scanComments = function () {
+	        var comments;
+	        if (this.trackComment) {
+	            comments = [];
+	        }
+	        var start = (this.index === 0);
+	        while (!this.eof()) {
+	            var ch = this.source.charCodeAt(this.index);
+	            if (character_1.Character.isWhiteSpace(ch)) {
+	                ++this.index;
+	            }
+	            else if (character_1.Character.isLineTerminator(ch)) {
+	                ++this.index;
+	                if (ch === 0x0D && this.source.charCodeAt(this.index) === 0x0A) {
+	                    ++this.index;
+	                }
+	                ++this.lineNumber;
+	                this.lineStart = this.index;
+	                start = true;
+	            }
+	            else if (ch === 0x2F) {
+	                ch = this.source.charCodeAt(this.index + 1);
+	                if (ch === 0x2F) {
+	                    this.index += 2;
+	                    var comment = this.skipSingleLineComment(2);
+	                    if (this.trackComment) {
+	                        comments = comments.concat(comment);
+	                    }
+	                    start = true;
+	                }
+	                else if (ch === 0x2A) {
+	                    this.index += 2;
+	                    var comment = this.skipMultiLineComment();
+	                    if (this.trackComment) {
+	                        comments = comments.concat(comment);
+	                    }
+	                }
+	                else {
+	                    break;
+	                }
+	            }
+	            else if (start && ch === 0x2D) {
+	                // U+003E is '>'
+	                if ((this.source.charCodeAt(this.index + 1) === 0x2D) && (this.source.charCodeAt(this.index + 2) === 0x3E)) {
+	                    // '-->' is a single-line comment
+	                    this.index += 3;
+	                    var comment = this.skipSingleLineComment(3);
+	                    if (this.trackComment) {
+	                        comments = comments.concat(comment);
+	                    }
+	                }
+	                else {
+	                    break;
+	                }
+	            }
+	            else if (ch === 0x3C && !this.isModule) {
+	                if (this.source.slice(this.index + 1, this.index + 4) === '!--') {
+	                    this.index += 4; // `<!--`
+	                    var comment = this.skipSingleLineComment(4);
+	                    if (this.trackComment) {
+	                        comments = comments.concat(comment);
+	                    }
+	                }
+	                else {
+	                    break;
+	                }
+	            }
+	            else {
+	                break;
+	            }
+	        }
+	        return comments;
+	    };
+	    // https://tc39.github.io/ecma262/#sec-future-reserved-words
+	    Scanner.prototype.isFutureReservedWord = function (id) {
+	        switch (id) {
+	            case 'enum':
+	            case 'export':
+	            case 'import':
+	            case 'super':
+	                return true;
+	            default:
+	                return false;
+	        }
+	    };
+	    Scanner.prototype.isStrictModeReservedWord = function (id) {
+	        switch (id) {
+	            case 'implements':
+	            case 'interface':
+	            case 'package':
+	            case 'private':
+	            case 'protected':
+	            case 'public':
+	            case 'static':
+	            case 'yield':
+	            case 'let':
+	                return true;
+	            default:
+	                return false;
+	        }
+	    };
+	    Scanner.prototype.isRestrictedWord = function (id) {
+	        return id === 'eval' || id === 'arguments';
+	    };
+	    // https://tc39.github.io/ecma262/#sec-keywords
+	    Scanner.prototype.isKeyword = function (id) {
+	        switch (id.length) {
+	            case 2:
+	                return (id === 'if') || (id === 'in') || (id === 'do');
+	            case 3:
+	                return (id === 'var') || (id === 'for') || (id === 'new') ||
+	                    (id === 'try') || (id === 'let');
+	            case 4:
+	                return (id === 'this') || (id === 'else') || (id === 'case') ||
+	                    (id === 'void') || (id === 'with') || (id === 'enum');
+	            case 5:
+	                return (id === 'while') || (id === 'break') || (id === 'catch') ||
+	                    (id === 'throw') || (id === 'const') || (id === 'yield') ||
+	                    (id === 'class') || (id === 'super');
+	            case 6:
+	                return (id === 'return') || (id === 'typeof') || (id === 'delete') ||
+	                    (id === 'switch') || (id === 'export') || (id === 'import');
+	            case 7:
+	                return (id === 'default') || (id === 'finally') || (id === 'extends');
+	            case 8:
+	                return (id === 'function') || (id === 'continue') || (id === 'debugger');
+	            case 10:
+	                return (id === 'instanceof');
+	            default:
+	                return false;
+	        }
+	    };
+	    Scanner.prototype.codePointAt = function (i) {
+	        var cp = this.source.charCodeAt(i);
+	        if (cp >= 0xD800 && cp <= 0xDBFF) {
+	            var second = this.source.charCodeAt(i + 1);
+	            if (second >= 0xDC00 && second <= 0xDFFF) {
+	                var first = cp;
+	                cp = (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
+	            }
+	        }
+	        return cp;
+	    };
+	    Scanner.prototype.scanHexEscape = function (prefix) {
+	        var len = (prefix === 'u') ? 4 : 2;
+	        var code = 0;
+	        for (var i = 0; i < len; ++i) {
+	            if (!this.eof() && character_1.Character.isHexDigit(this.source.charCodeAt(this.index))) {
+	                code = code * 16 + hexValue(this.source[this.index++]);
+	            }
+	            else {
+	                return null;
+	            }
+	        }
+	        return String.fromCharCode(code);
+	    };
+	    Scanner.prototype.scanUnicodeCodePointEscape = function () {
+	        var ch = this.source[this.index];
+	        var code = 0;
+	        // At least, one hex digit is required.
+	        if (ch === '}') {
+	            this.throwUnexpectedToken();
+	        }
+	        while (!this.eof()) {
+	            ch = this.source[this.index++];
+	            if (!character_1.Character.isHexDigit(ch.charCodeAt(0))) {
+	                break;
+	            }
+	            code = code * 16 + hexValue(ch);
+	        }
+	        if (code > 0x10FFFF || ch !== '}') {
+	            this.throwUnexpectedToken();
+	        }
+	        return character_1.Character.fromCodePoint(code);
+	    };
+	    Scanner.prototype.getIdentifier = function () {
+	        var start = this.index++;
+	        while (!this.eof()) {
+	            var ch = this.source.charCodeAt(this.index);
+	            if (ch === 0x5C) {
+	                // Blackslash (U+005C) marks Unicode escape sequence.
+	                this.index = start;
+	                return this.getComplexIdentifier();
+	            }
+	            else if (ch >= 0xD800 && ch < 0xDFFF) {
+	                // Need to handle surrogate pairs.
+	                this.index = start;
+	                return this.getComplexIdentifier();
+	            }
+	            if (character_1.Character.isIdentifierPart(ch)) {
+	                ++this.index;
+	            }
+	            else {
+	                break;
+	            }
+	        }
+	        return this.source.slice(start, this.index);
+	    };
+	    Scanner.prototype.getComplexIdentifier = function () {
+	        var cp = this.codePointAt(this.index);
+	        var id = character_1.Character.fromCodePoint(cp);
+	        this.index += id.length;
+	        // '\u' (U+005C, U+0075) denotes an escaped character.
+	        var ch;
+	        if (cp === 0x5C) {
+	            if (this.source.charCodeAt(this.index) !== 0x75) {
+	                this.throwUnexpectedToken();
+	            }
+	            ++this.index;
+	            if (this.source[this.index] === '{') {
+	                ++this.index;
+	                ch = this.scanUnicodeCodePointEscape();
+	            }
+	            else {
+	                ch = this.scanHexEscape('u');
+	                if (ch === null || ch === '\\' || !character_1.Character.isIdentifierStart(ch.charCodeAt(0))) {
+	                    this.throwUnexpectedToken();
+	                }
+	            }
+	            id = ch;
+	        }
+	        while (!this.eof()) {
+	            cp = this.codePointAt(this.index);
+	            if (!character_1.Character.isIdentifierPart(cp)) {
+	                break;
+	            }
+	            ch = character_1.Character.fromCodePoint(cp);
+	            id += ch;
+	            this.index += ch.length;
+	            // '\u' (U+005C, U+0075) denotes an escaped character.
+	            if (cp === 0x5C) {
+	                id = id.substr(0, id.length - 1);
+	                if (this.source.charCodeAt(this.index) !== 0x75) {
+	                    this.throwUnexpectedToken();
+	                }
+	                ++this.index;
+	                if (this.source[this.index] === '{') {
+	                    ++this.index;
+	                    ch = this.scanUnicodeCodePointEscape();
+	                }
+	                else {
+	                    ch = this.scanHexEscape('u');
+	                    if (ch === null || ch === '\\' || !character_1.Character.isIdentifierPart(ch.charCodeAt(0))) {
+	                        this.throwUnexpectedToken();
+	                    }
+	                }
+	                id += ch;
+	            }
+	        }
+	        return id;
+	    };
+	    Scanner.prototype.octalToDecimal = function (ch) {
+	        // \0 is not octal escape sequence
+	        var octal = (ch !== '0');
+	        var code = octalValue(ch);
+	        if (!this.eof() && character_1.Character.isOctalDigit(this.source.charCodeAt(this.index))) {
+	            octal = true;
+	            code = code * 8 + octalValue(this.source[this.index++]);
+	            // 3 digits are only allowed when string starts
+	            // with 0, 1, 2, 3
+	            if ('0123'.indexOf(ch) >= 0 && !this.eof() && character_1.Character.isOctalDigit(this.source.charCodeAt(this.index))) {
+	                code = code * 8 + octalValue(this.source[this.index++]);
+	            }
+	        }
+	        return {
+	            code: code,
+	            octal: octal
+	        };
+	    };
+	    // https://tc39.github.io/ecma262/#sec-names-and-keywords
+	    Scanner.prototype.scanIdentifier = function () {
+	        var type;
+	        var start = this.index;
+	        // Backslash (U+005C) starts an escaped character.
+	        var id = (this.source.charCodeAt(start) === 0x5C) ? this.getComplexIdentifier() : this.getIdentifier();
+	        // There is no keyword or literal with only one character.
+	        // Thus, it must be an identifier.
+	        if (id.length === 1) {
+	            type = 3 /* Identifier */;
+	        }
+	        else if (this.isKeyword(id)) {
+	            type = 4 /* Keyword */;
+	        }
+	        else if (id === 'null') {
+	            type = 5 /* NullLiteral */;
+	        }
+	        else if (id === 'true' || id === 'false') {
+	            type = 1 /* BooleanLiteral */;
+	        }
+	        else {
+	            type = 3 /* Identifier */;
+	        }
+	        if (type !== 3 /* Identifier */ && (start + id.length !== this.index)) {
+	            var restore = this.index;
+	            this.index = start;
+	            this.tolerateUnexpectedToken(messages_1.Messages.InvalidEscapedReservedWord);
+	            this.index = restore;
+	        }
+	        return {
+	            type: type,
+	            value: id,
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    // https://tc39.github.io/ecma262/#sec-punctuators
+	    Scanner.prototype.scanPunctuator = function () {
+	        var start = this.index;
+	        // Check for most common single-character punctuators.
+	        var str = this.source[this.index];
+	        switch (str) {
+	            case '(':
+	            case '{':
+	                if (str === '{') {
+	                    this.curlyStack.push('{');
+	                }
+	                ++this.index;
+	                break;
+	            case '.':
+	                ++this.index;
+	                if (this.source[this.index] === '.' && this.source[this.index + 1] === '.') {
+	                    // Spread operator: ...
+	                    this.index += 2;
+	                    str = '...';
+	                }
+	                break;
+	            case '}':
+	                ++this.index;
+	                this.curlyStack.pop();
+	                break;
+	            case ')':
+	            case ';':
+	            case ',':
+	            case '[':
+	            case ']':
+	            case ':':
+	            case '?':
+	            case '~':
+	                ++this.index;
+	                break;
+	            default:
+	                // 4-character punctuator.
+	                str = this.source.substr(this.index, 4);
+	                if (str === '>>>=') {
+	                    this.index += 4;
+	                }
+	                else {
+	                    // 3-character punctuators.
+	                    str = str.substr(0, 3);
+	                    if (str === '===' || str === '!==' || str === '>>>' ||
+	                        str === '<<=' || str === '>>=' || str === '**=') {
+	                        this.index += 3;
+	                    }
+	                    else {
+	                        // 2-character punctuators.
+	                        str = str.substr(0, 2);
+	                        if (str === '&&' || str === '||' || str === '==' || str === '!=' ||
+	                            str === '+=' || str === '-=' || str === '*=' || str === '/=' ||
+	                            str === '++' || str === '--' || str === '<<' || str === '>>' ||
+	                            str === '&=' || str === '|=' || str === '^=' || str === '%=' ||
+	                            str === '<=' || str === '>=' || str === '=>' || str === '**') {
+	                            this.index += 2;
+	                        }
+	                        else {
+	                            // 1-character punctuators.
+	                            str = this.source[this.index];
+	                            if ('<>=!+-*%&|^/'.indexOf(str) >= 0) {
+	                                ++this.index;
+	                            }
+	                        }
+	                    }
+	                }
+	        }
+	        if (this.index === start) {
+	            this.throwUnexpectedToken();
+	        }
+	        return {
+	            type: 7 /* Punctuator */,
+	            value: str,
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    // https://tc39.github.io/ecma262/#sec-literals-numeric-literals
+	    Scanner.prototype.scanHexLiteral = function (start) {
+	        var num = '';
+	        while (!this.eof()) {
+	            if (!character_1.Character.isHexDigit(this.source.charCodeAt(this.index))) {
+	                break;
+	            }
+	            num += this.source[this.index++];
+	        }
+	        if (num.length === 0) {
+	            this.throwUnexpectedToken();
+	        }
+	        if (character_1.Character.isIdentifierStart(this.source.charCodeAt(this.index))) {
+	            this.throwUnexpectedToken();
+	        }
+	        return {
+	            type: 6 /* NumericLiteral */,
+	            value: parseInt('0x' + num, 16),
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    Scanner.prototype.scanBinaryLiteral = function (start) {
+	        var num = '';
+	        var ch;
+	        while (!this.eof()) {
+	            ch = this.source[this.index];
+	            if (ch !== '0' && ch !== '1') {
+	                break;
+	            }
+	            num += this.source[this.index++];
+	        }
+	        if (num.length === 0) {
+	            // only 0b or 0B
+	            this.throwUnexpectedToken();
+	        }
+	        if (!this.eof()) {
+	            ch = this.source.charCodeAt(this.index);
+	            /* istanbul ignore else */
+	            if (character_1.Character.isIdentifierStart(ch) || character_1.Character.isDecimalDigit(ch)) {
+	                this.throwUnexpectedToken();
+	            }
+	        }
+	        return {
+	            type: 6 /* NumericLiteral */,
+	            value: parseInt(num, 2),
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    Scanner.prototype.scanOctalLiteral = function (prefix, start) {
+	        var num = '';
+	        var octal = false;
+	        if (character_1.Character.isOctalDigit(prefix.charCodeAt(0))) {
+	            octal = true;
+	            num = '0' + this.source[this.index++];
+	        }
+	        else {
+	            ++this.index;
+	        }
+	        while (!this.eof()) {
+	            if (!character_1.Character.isOctalDigit(this.source.charCodeAt(this.index))) {
+	                break;
+	            }
+	            num += this.source[this.index++];
+	        }
+	        if (!octal && num.length === 0) {
+	            // only 0o or 0O
+	            this.throwUnexpectedToken();
+	        }
+	        if (character_1.Character.isIdentifierStart(this.source.charCodeAt(this.index)) || character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+	            this.throwUnexpectedToken();
+	        }
+	        return {
+	            type: 6 /* NumericLiteral */,
+	            value: parseInt(num, 8),
+	            octal: octal,
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    Scanner.prototype.isImplicitOctalLiteral = function () {
+	        // Implicit octal, unless there is a non-octal digit.
+	        // (Annex B.1.1 on Numeric Literals)
+	        for (var i = this.index + 1; i < this.length; ++i) {
+	            var ch = this.source[i];
+	            if (ch === '8' || ch === '9') {
+	                return false;
+	            }
+	            if (!character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
+	                return true;
+	            }
+	        }
+	        return true;
+	    };
+	    Scanner.prototype.scanNumericLiteral = function () {
+	        var start = this.index;
+	        var ch = this.source[start];
+	        assert_1.assert(character_1.Character.isDecimalDigit(ch.charCodeAt(0)) || (ch === '.'), 'Numeric literal must start with a decimal digit or a decimal point');
+	        var num = '';
+	        if (ch !== '.') {
+	            num = this.source[this.index++];
+	            ch = this.source[this.index];
+	            // Hex number starts with '0x'.
+	            // Octal number starts with '0'.
+	            // Octal number in ES6 starts with '0o'.
+	            // Binary number in ES6 starts with '0b'.
+	            if (num === '0') {
+	                if (ch === 'x' || ch === 'X') {
+	                    ++this.index;
+	                    return this.scanHexLiteral(start);
+	                }
+	                if (ch === 'b' || ch === 'B') {
+	                    ++this.index;
+	                    return this.scanBinaryLiteral(start);
+	                }
+	                if (ch === 'o' || ch === 'O') {
+	                    return this.scanOctalLiteral(ch, start);
+	                }
+	                if (ch && character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
+	                    if (this.isImplicitOctalLiteral()) {
+	                        return this.scanOctalLiteral(ch, start);
+	                    }
+	                }
+	            }
+	            while (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+	                num += this.source[this.index++];
+	            }
+	            ch = this.source[this.index];
+	        }
+	        if (ch === '.') {
+	            num += this.source[this.index++];
+	            while (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+	                num += this.source[this.index++];
+	            }
+	            ch = this.source[this.index];
+	        }
+	        if (ch === 'e' || ch === 'E') {
+	            num += this.source[this.index++];
+	            ch = this.source[this.index];
+	            if (ch === '+' || ch === '-') {
+	                num += this.source[this.index++];
+	            }
+	            if (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+	                while (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+	                    num += this.source[this.index++];
+	                }
+	            }
+	            else {
+	                this.throwUnexpectedToken();
+	            }
+	        }
+	        if (character_1.Character.isIdentifierStart(this.source.charCodeAt(this.index))) {
+	            this.throwUnexpectedToken();
+	        }
+	        return {
+	            type: 6 /* NumericLiteral */,
+	            value: parseFloat(num),
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    // https://tc39.github.io/ecma262/#sec-literals-string-literals
+	    Scanner.prototype.scanStringLiteral = function () {
+	        var start = this.index;
+	        var quote = this.source[start];
+	        assert_1.assert((quote === '\'' || quote === '"'), 'String literal must starts with a quote');
+	        ++this.index;
+	        var octal = false;
+	        var str = '';
+	        while (!this.eof()) {
+	            var ch = this.source[this.index++];
+	            if (ch === quote) {
+	                quote = '';
+	                break;
+	            }
+	            else if (ch === '\\') {
+	                ch = this.source[this.index++];
+	                if (!ch || !character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+	                    switch (ch) {
+	                        case 'u':
+	                            if (this.source[this.index] === '{') {
+	                                ++this.index;
+	                                str += this.scanUnicodeCodePointEscape();
+	                            }
+	                            else {
+	                                var unescaped_1 = this.scanHexEscape(ch);
+	                                if (unescaped_1 === null) {
+	                                    this.throwUnexpectedToken();
+	                                }
+	                                str += unescaped_1;
+	                            }
+	                            break;
+	                        case 'x':
+	                            var unescaped = this.scanHexEscape(ch);
+	                            if (unescaped === null) {
+	                                this.throwUnexpectedToken(messages_1.Messages.InvalidHexEscapeSequence);
+	                            }
+	                            str += unescaped;
+	                            break;
+	                        case 'n':
+	                            str += '\n';
+	                            break;
+	                        case 'r':
+	                            str += '\r';
+	                            break;
+	                        case 't':
+	                            str += '\t';
+	                            break;
+	                        case 'b':
+	                            str += '\b';
+	                            break;
+	                        case 'f':
+	                            str += '\f';
+	                            break;
+	                        case 'v':
+	                            str += '\x0B';
+	                            break;
+	                        case '8':
+	                        case '9':
+	                            str += ch;
+	                            this.tolerateUnexpectedToken();
+	                            break;
+	                        default:
+	                            if (ch && character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
+	                                var octToDec = this.octalToDecimal(ch);
+	                                octal = octToDec.octal || octal;
+	                                str += String.fromCharCode(octToDec.code);
+	                            }
+	                            else {
+	                                str += ch;
+	                            }
+	                            break;
+	                    }
+	                }
+	                else {
+	                    ++this.lineNumber;
+	                    if (ch === '\r' && this.source[this.index] === '\n') {
+	                        ++this.index;
+	                    }
+	                    this.lineStart = this.index;
+	                }
+	            }
+	            else if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+	                break;
+	            }
+	            else {
+	                str += ch;
+	            }
+	        }
+	        if (quote !== '') {
+	            this.index = start;
+	            this.throwUnexpectedToken();
+	        }
+	        return {
+	            type: 8 /* StringLiteral */,
+	            value: str,
+	            octal: octal,
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    // https://tc39.github.io/ecma262/#sec-template-literal-lexical-components
+	    Scanner.prototype.scanTemplate = function () {
+	        var cooked = '';
+	        var terminated = false;
+	        var start = this.index;
+	        var head = (this.source[start] === '`');
+	        var tail = false;
+	        var rawOffset = 2;
+	        ++this.index;
+	        while (!this.eof()) {
+	            var ch = this.source[this.index++];
+	            if (ch === '`') {
+	                rawOffset = 1;
+	                tail = true;
+	                terminated = true;
+	                break;
+	            }
+	            else if (ch === '$') {
+	                if (this.source[this.index] === '{') {
+	                    this.curlyStack.push('${');
+	                    ++this.index;
+	                    terminated = true;
+	                    break;
+	                }
+	                cooked += ch;
+	            }
+	            else if (ch === '\\') {
+	                ch = this.source[this.index++];
+	                if (!character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+	                    switch (ch) {
+	                        case 'n':
+	                            cooked += '\n';
+	                            break;
+	                        case 'r':
+	                            cooked += '\r';
+	                            break;
+	                        case 't':
+	                            cooked += '\t';
+	                            break;
+	                        case 'u':
+	                            if (this.source[this.index] === '{') {
+	                                ++this.index;
+	                                cooked += this.scanUnicodeCodePointEscape();
+	                            }
+	                            else {
+	                                var restore = this.index;
+	                                var unescaped_2 = this.scanHexEscape(ch);
+	                                if (unescaped_2 !== null) {
+	                                    cooked += unescaped_2;
+	                                }
+	                                else {
+	                                    this.index = restore;
+	                                    cooked += ch;
+	                                }
+	                            }
+	                            break;
+	                        case 'x':
+	                            var unescaped = this.scanHexEscape(ch);
+	                            if (unescaped === null) {
+	                                this.throwUnexpectedToken(messages_1.Messages.InvalidHexEscapeSequence);
+	                            }
+	                            cooked += unescaped;
+	                            break;
+	                        case 'b':
+	                            cooked += '\b';
+	                            break;
+	                        case 'f':
+	                            cooked += '\f';
+	                            break;
+	                        case 'v':
+	                            cooked += '\v';
+	                            break;
+	                        default:
+	                            if (ch === '0') {
+	                                if (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+	                                    // Illegal: \01 \02 and so on
+	                                    this.throwUnexpectedToken(messages_1.Messages.TemplateOctalLiteral);
+	                                }
+	                                cooked += '\0';
+	                            }
+	                            else if (character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
+	                                // Illegal: \1 \2
+	                                this.throwUnexpectedToken(messages_1.Messages.TemplateOctalLiteral);
+	                            }
+	                            else {
+	                                cooked += ch;
+	                            }
+	                            break;
+	                    }
+	                }
+	                else {
+	                    ++this.lineNumber;
+	                    if (ch === '\r' && this.source[this.index] === '\n') {
+	                        ++this.index;
+	                    }
+	                    this.lineStart = this.index;
+	                }
+	            }
+	            else if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+	                ++this.lineNumber;
+	                if (ch === '\r' && this.source[this.index] === '\n') {
+	                    ++this.index;
+	                }
+	                this.lineStart = this.index;
+	                cooked += '\n';
+	            }
+	            else {
+	                cooked += ch;
+	            }
+	        }
+	        if (!terminated) {
+	            this.throwUnexpectedToken();
+	        }
+	        if (!head) {
+	            this.curlyStack.pop();
+	        }
+	        return {
+	            type: 10 /* Template */,
+	            value: this.source.slice(start + 1, this.index - rawOffset),
+	            cooked: cooked,
+	            head: head,
+	            tail: tail,
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    // https://tc39.github.io/ecma262/#sec-literals-regular-expression-literals
+	    Scanner.prototype.testRegExp = function (pattern, flags) {
+	        // The BMP character to use as a replacement for astral symbols when
+	        // translating an ES6 "u"-flagged pattern to an ES5-compatible
+	        // approximation.
+	        // Note: replacing with '\uFFFF' enables false positives in unlikely
+	        // scenarios. For example, `[\u{1044f}-\u{10440}]` is an invalid
+	        // pattern that would not be detected by this substitution.
+	        var astralSubstitute = '\uFFFF';
+	        var tmp = pattern;
+	        var self = this;
+	        if (flags.indexOf('u') >= 0) {
+	            tmp = tmp
+	                .replace(/\\u\{([0-9a-fA-F]+)\}|\\u([a-fA-F0-9]{4})/g, function ($0, $1, $2) {
+	                var codePoint = parseInt($1 || $2, 16);
+	                if (codePoint > 0x10FFFF) {
+	                    self.throwUnexpectedToken(messages_1.Messages.InvalidRegExp);
+	                }
+	                if (codePoint <= 0xFFFF) {
+	                    return String.fromCharCode(codePoint);
+	                }
+	                return astralSubstitute;
+	            })
+	                .replace(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g, astralSubstitute);
+	        }
+	        // First, detect invalid regular expressions.
+	        try {
+	            RegExp(tmp);
+	        }
+	        catch (e) {
+	            this.throwUnexpectedToken(messages_1.Messages.InvalidRegExp);
+	        }
+	        // Return a regular expression object for this pattern-flag pair, or
+	        // `null` in case the current environment doesn't support the flags it
+	        // uses.
+	        try {
+	            return new RegExp(pattern, flags);
+	        }
+	        catch (exception) {
+	            /* istanbul ignore next */
+	            return null;
+	        }
+	    };
+	    Scanner.prototype.scanRegExpBody = function () {
+	        var ch = this.source[this.index];
+	        assert_1.assert(ch === '/', 'Regular expression literal must start with a slash');
+	        var str = this.source[this.index++];
+	        var classMarker = false;
+	        var terminated = false;
+	        while (!this.eof()) {
+	            ch = this.source[this.index++];
+	            str += ch;
+	            if (ch === '\\') {
+	                ch = this.source[this.index++];
+	                // https://tc39.github.io/ecma262/#sec-literals-regular-expression-literals
+	                if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+	                    this.throwUnexpectedToken(messages_1.Messages.UnterminatedRegExp);
+	                }
+	                str += ch;
+	            }
+	            else if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+	                this.throwUnexpectedToken(messages_1.Messages.UnterminatedRegExp);
+	            }
+	            else if (classMarker) {
+	                if (ch === ']') {
+	                    classMarker = false;
+	                }
+	            }
+	            else {
+	                if (ch === '/') {
+	                    terminated = true;
+	                    break;
+	                }
+	                else if (ch === '[') {
+	                    classMarker = true;
+	                }
+	            }
+	        }
+	        if (!terminated) {
+	            this.throwUnexpectedToken(messages_1.Messages.UnterminatedRegExp);
+	        }
+	        // Exclude leading and trailing slash.
+	        return str.substr(1, str.length - 2);
+	    };
+	    Scanner.prototype.scanRegExpFlags = function () {
+	        var str = '';
+	        var flags = '';
+	        while (!this.eof()) {
+	            var ch = this.source[this.index];
+	            if (!character_1.Character.isIdentifierPart(ch.charCodeAt(0))) {
+	                break;
+	            }
+	            ++this.index;
+	            if (ch === '\\' && !this.eof()) {
+	                ch = this.source[this.index];
+	                if (ch === 'u') {
+	                    ++this.index;
+	                    var restore = this.index;
+	                    var char = this.scanHexEscape('u');
+	                    if (char !== null) {
+	                        flags += char;
+	                        for (str += '\\u'; restore < this.index; ++restore) {
+	                            str += this.source[restore];
+	                        }
+	                    }
+	                    else {
+	                        this.index = restore;
+	                        flags += 'u';
+	                        str += '\\u';
+	                    }
+	                    this.tolerateUnexpectedToken();
+	                }
+	                else {
+	                    str += '\\';
+	                    this.tolerateUnexpectedToken();
+	                }
+	            }
+	            else {
+	                flags += ch;
+	                str += ch;
+	            }
+	        }
+	        return flags;
+	    };
+	    Scanner.prototype.scanRegExp = function () {
+	        var start = this.index;
+	        var pattern = this.scanRegExpBody();
+	        var flags = this.scanRegExpFlags();
+	        var value = this.testRegExp(pattern, flags);
+	        return {
+	            type: 9 /* RegularExpression */,
+	            value: '',
+	            pattern: pattern,
+	            flags: flags,
+	            regex: value,
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    Scanner.prototype.lex = function () {
+	        if (this.eof()) {
+	            return {
+	                type: 2 /* EOF */,
+	                value: '',
+	                lineNumber: this.lineNumber,
+	                lineStart: this.lineStart,
+	                start: this.index,
+	                end: this.index
+	            };
+	        }
+	        var cp = this.source.charCodeAt(this.index);
+	        if (character_1.Character.isIdentifierStart(cp)) {
+	            return this.scanIdentifier();
+	        }
+	        // Very common: ( and ) and ;
+	        if (cp === 0x28 || cp === 0x29 || cp === 0x3B) {
+	            return this.scanPunctuator();
+	        }
+	        // String literal starts with single quote (U+0027) or double quote (U+0022).
+	        if (cp === 0x27 || cp === 0x22) {
+	            return this.scanStringLiteral();
+	        }
+	        // Dot (.) U+002E can also start a floating-point number, hence the need
+	        // to check the next character.
+	        if (cp === 0x2E) {
+	            if (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index + 1))) {
+	                return this.scanNumericLiteral();
+	            }
+	            return this.scanPunctuator();
+	        }
+	        if (character_1.Character.isDecimalDigit(cp)) {
+	            return this.scanNumericLiteral();
+	        }
+	        // Template literals start with ` (U+0060) for template head
+	        // or } (U+007D) for template middle or template tail.
+	        if (cp === 0x60 || (cp === 0x7D && this.curlyStack[this.curlyStack.length - 1] === '${')) {
+	            return this.scanTemplate();
+	        }
+	        // Possible identifier start in a surrogate pair.
+	        if (cp >= 0xD800 && cp < 0xDFFF) {
+	            if (character_1.Character.isIdentifierStart(this.codePointAt(this.index))) {
+	                return this.scanIdentifier();
+	            }
+	        }
+	        return this.scanPunctuator();
+	    };
+	    return Scanner;
+	}());
+	exports.Scanner = Scanner;
+
+
+/***/ },
+/* 13 */
+/***/ function(module, exports) {
+
+	"use strict";
+	Object.defineProperty(exports, "__esModule", { value: true });
+	exports.TokenName = {};
+	exports.TokenName[1 /* BooleanLiteral */] = 'Boolean';
+	exports.TokenName[2 /* EOF */] = '<end>';
+	exports.TokenName[3 /* Identifier */] = 'Identifier';
+	exports.TokenName[4 /* Keyword */] = 'Keyword';
+	exports.TokenName[5 /* NullLiteral */] = 'Null';
+	exports.TokenName[6 /* NumericLiteral */] = 'Numeric';
+	exports.TokenName[7 /* Punctuator */] = 'Punctuator';
+	exports.TokenName[8 /* StringLiteral */] = 'String';
+	exports.TokenName[9 /* RegularExpression */] = 'RegularExpression';
+	exports.TokenName[10 /* Template */] = 'Template';
+
+
+/***/ },
+/* 14 */
+/***/ function(module, exports) {
+
+	"use strict";
+	// Generated by generate-xhtml-entities.js. DO NOT MODIFY!
+	Object.defineProperty(exports, "__esModule", { value: true });
+	exports.XHTMLEntities = {
+	    quot: '\u0022',
+	    amp: '\u0026',
+	    apos: '\u0027',
+	    gt: '\u003E',
+	    nbsp: '\u00A0',
+	    iexcl: '\u00A1',
+	    cent: '\u00A2',
+	    pound: '\u00A3',
+	    curren: '\u00A4',
+	    yen: '\u00A5',
+	    brvbar: '\u00A6',
+	    sect: '\u00A7',
+	    uml: '\u00A8',
+	    copy: '\u00A9',
+	    ordf: '\u00AA',
+	    laquo: '\u00AB',
+	    not: '\u00AC',
+	    shy: '\u00AD',
+	    reg: '\u00AE',
+	    macr: '\u00AF',
+	    deg: '\u00B0',
+	    plusmn: '\u00B1',
+	    sup2: '\u00B2',
+	    sup3: '\u00B3',
+	    acute: '\u00B4',
+	    micro: '\u00B5',
+	    para: '\u00B6',
+	    middot: '\u00B7',
+	    cedil: '\u00B8',
+	    sup1: '\u00B9',
+	    ordm: '\u00BA',
+	    raquo: '\u00BB',
+	    frac14: '\u00BC',
+	    frac12: '\u00BD',
+	    frac34: '\u00BE',
+	    iquest: '\u00BF',
+	    Agrave: '\u00C0',
+	    Aacute: '\u00C1',
+	    Acirc: '\u00C2',
+	    Atilde: '\u00C3',
+	    Auml: '\u00C4',
+	    Aring: '\u00C5',
+	    AElig: '\u00C6',
+	    Ccedil: '\u00C7',
+	    Egrave: '\u00C8',
+	    Eacute: '\u00C9',
+	    Ecirc: '\u00CA',
+	    Euml: '\u00CB',
+	    Igrave: '\u00CC',
+	    Iacute: '\u00CD',
+	    Icirc: '\u00CE',
+	    Iuml: '\u00CF',
+	    ETH: '\u00D0',
+	    Ntilde: '\u00D1',
+	    Ograve: '\u00D2',
+	    Oacute: '\u00D3',
+	    Ocirc: '\u00D4',
+	    Otilde: '\u00D5',
+	    Ouml: '\u00D6',
+	    times: '\u00D7',
+	    Oslash: '\u00D8',
+	    Ugrave: '\u00D9',
+	    Uacute: '\u00DA',
+	    Ucirc: '\u00DB',
+	    Uuml: '\u00DC',
+	    Yacute: '\u00DD',
+	    THORN: '\u00DE',
+	    szlig: '\u00DF',
+	    agrave: '\u00E0',
+	    aacute: '\u00E1',
+	    acirc: '\u00E2',
+	    atilde: '\u00E3',
+	    auml: '\u00E4',
+	    aring: '\u00E5',
+	    aelig: '\u00E6',
+	    ccedil: '\u00E7',
+	    egrave: '\u00E8',
+	    eacute: '\u00E9',
+	    ecirc: '\u00EA',
+	    euml: '\u00EB',
+	    igrave: '\u00EC',
+	    iacute: '\u00ED',
+	    icirc: '\u00EE',
+	    iuml: '\u00EF',
+	    eth: '\u00F0',
+	    ntilde: '\u00F1',
+	    ograve: '\u00F2',
+	    oacute: '\u00F3',
+	    ocirc: '\u00F4',
+	    otilde: '\u00F5',
+	    ouml: '\u00F6',
+	    divide: '\u00F7',
+	    oslash: '\u00F8',
+	    ugrave: '\u00F9',
+	    uacute: '\u00FA',
+	    ucirc: '\u00FB',
+	    uuml: '\u00FC',
+	    yacute: '\u00FD',
+	    thorn: '\u00FE',
+	    yuml: '\u00FF',
+	    OElig: '\u0152',
+	    oelig: '\u0153',
+	    Scaron: '\u0160',
+	    scaron: '\u0161',
+	    Yuml: '\u0178',
+	    fnof: '\u0192',
+	    circ: '\u02C6',
+	    tilde: '\u02DC',
+	    Alpha: '\u0391',
+	    Beta: '\u0392',
+	    Gamma: '\u0393',
+	    Delta: '\u0394',
+	    Epsilon: '\u0395',
+	    Zeta: '\u0396',
+	    Eta: '\u0397',
+	    Theta: '\u0398',
+	    Iota: '\u0399',
+	    Kappa: '\u039A',
+	    Lambda: '\u039B',
+	    Mu: '\u039C',
+	    Nu: '\u039D',
+	    Xi: '\u039E',
+	    Omicron: '\u039F',
+	    Pi: '\u03A0',
+	    Rho: '\u03A1',
+	    Sigma: '\u03A3',
+	    Tau: '\u03A4',
+	    Upsilon: '\u03A5',
+	    Phi: '\u03A6',
+	    Chi: '\u03A7',
+	    Psi: '\u03A8',
+	    Omega: '\u03A9',
+	    alpha: '\u03B1',
+	    beta: '\u03B2',
+	    gamma: '\u03B3',
+	    delta: '\u03B4',
+	    epsilon: '\u03B5',
+	    zeta: '\u03B6',
+	    eta: '\u03B7',
+	    theta: '\u03B8',
+	    iota: '\u03B9',
+	    kappa: '\u03BA',
+	    lambda: '\u03BB',
+	    mu: '\u03BC',
+	    nu: '\u03BD',
+	    xi: '\u03BE',
+	    omicron: '\u03BF',
+	    pi: '\u03C0',
+	    rho: '\u03C1',
+	    sigmaf: '\u03C2',
+	    sigma: '\u03C3',
+	    tau: '\u03C4',
+	    upsilon: '\u03C5',
+	    phi: '\u03C6',
+	    chi: '\u03C7',
+	    psi: '\u03C8',
+	    omega: '\u03C9',
+	    thetasym: '\u03D1',
+	    upsih: '\u03D2',
+	    piv: '\u03D6',
+	    ensp: '\u2002',
+	    emsp: '\u2003',
+	    thinsp: '\u2009',
+	    zwnj: '\u200C',
+	    zwj: '\u200D',
+	    lrm: '\u200E',
+	    rlm: '\u200F',
+	    ndash: '\u2013',
+	    mdash: '\u2014',
+	    lsquo: '\u2018',
+	    rsquo: '\u2019',
+	    sbquo: '\u201A',
+	    ldquo: '\u201C',
+	    rdquo: '\u201D',
+	    bdquo: '\u201E',
+	    dagger: '\u2020',
+	    Dagger: '\u2021',
+	    bull: '\u2022',
+	    hellip: '\u2026',
+	    permil: '\u2030',
+	    prime: '\u2032',
+	    Prime: '\u2033',
+	    lsaquo: '\u2039',
+	    rsaquo: '\u203A',
+	    oline: '\u203E',
+	    frasl: '\u2044',
+	    euro: '\u20AC',
+	    image: '\u2111',
+	    weierp: '\u2118',
+	    real: '\u211C',
+	    trade: '\u2122',
+	    alefsym: '\u2135',
+	    larr: '\u2190',
+	    uarr: '\u2191',
+	    rarr: '\u2192',
+	    darr: '\u2193',
+	    harr: '\u2194',
+	    crarr: '\u21B5',
+	    lArr: '\u21D0',
+	    uArr: '\u21D1',
+	    rArr: '\u21D2',
+	    dArr: '\u21D3',
+	    hArr: '\u21D4',
+	    forall: '\u2200',
+	    part: '\u2202',
+	    exist: '\u2203',
+	    empty: '\u2205',
+	    nabla: '\u2207',
+	    isin: '\u2208',
+	    notin: '\u2209',
+	    ni: '\u220B',
+	    prod: '\u220F',
+	    sum: '\u2211',
+	    minus: '\u2212',
+	    lowast: '\u2217',
+	    radic: '\u221A',
+	    prop: '\u221D',
+	    infin: '\u221E',
+	    ang: '\u2220',
+	    and: '\u2227',
+	    or: '\u2228',
+	    cap: '\u2229',
+	    cup: '\u222A',
+	    int: '\u222B',
+	    there4: '\u2234',
+	    sim: '\u223C',
+	    cong: '\u2245',
+	    asymp: '\u2248',
+	    ne: '\u2260',
+	    equiv: '\u2261',
+	    le: '\u2264',
+	    ge: '\u2265',
+	    sub: '\u2282',
+	    sup: '\u2283',
+	    nsub: '\u2284',
+	    sube: '\u2286',
+	    supe: '\u2287',
+	    oplus: '\u2295',
+	    otimes: '\u2297',
+	    perp: '\u22A5',
+	    sdot: '\u22C5',
+	    lceil: '\u2308',
+	    rceil: '\u2309',
+	    lfloor: '\u230A',
+	    rfloor: '\u230B',
+	    loz: '\u25CA',
+	    spades: '\u2660',
+	    clubs: '\u2663',
+	    hearts: '\u2665',
+	    diams: '\u2666',
+	    lang: '\u27E8',
+	    rang: '\u27E9'
+	};
+
+
+/***/ },
+/* 15 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+	Object.defineProperty(exports, "__esModule", { value: true });
+	var error_handler_1 = __webpack_require__(10);
+	var scanner_1 = __webpack_require__(12);
+	var token_1 = __webpack_require__(13);
+	var Reader = (function () {
+	    function Reader() {
+	        this.values = [];
+	        this.curly = this.paren = -1;
+	    }
+	    // A function following one of those tokens is an expression.
+	    Reader.prototype.beforeFunctionExpression = function (t) {
+	        return ['(', '{', '[', 'in', 'typeof', 'instanceof', 'new',
+	            'return', 'case', 'delete', 'throw', 'void',
+	            // assignment operators
+	            '=', '+=', '-=', '*=', '**=', '/=', '%=', '<<=', '>>=', '>>>=',
+	            '&=', '|=', '^=', ',',
+	            // binary/unary operators
+	            '+', '-', '*', '**', '/', '%', '++', '--', '<<', '>>', '>>>', '&',
+	            '|', '^', '!', '~', '&&', '||', '?', ':', '===', '==', '>=',
+	            '<=', '<', '>', '!=', '!=='].indexOf(t) >= 0;
+	    };
+	    // Determine if forward slash (/) is an operator or part of a regular expression
+	    // https://github.com/mozilla/sweet.js/wiki/design
+	    Reader.prototype.isRegexStart = function () {
+	        var previous = this.values[this.values.length - 1];
+	        var regex = (previous !== null);
+	        switch (previous) {
+	            case 'this':
+	            case ']':
+	                regex = false;
+	                break;
+	            case ')':
+	                var keyword = this.values[this.paren - 1];
+	                regex = (keyword === 'if' || keyword === 'while' || keyword === 'for' || keyword === 'with');
+	                break;
+	            case '}':
+	                // Dividing a function by anything makes little sense,
+	                // but we have to check for that.
+	                regex = false;
+	                if (this.values[this.curly - 3] === 'function') {
+	                    // Anonymous function, e.g. function(){} /42
+	                    var check = this.values[this.curly - 4];
+	                    regex = check ? !this.beforeFunctionExpression(check) : false;
+	                }
+	                else if (this.values[this.curly - 4] === 'function') {
+	                    // Named function, e.g. function f(){} /42/
+	                    var check = this.values[this.curly - 5];
+	                    regex = check ? !this.beforeFunctionExpression(check) : true;
+	                }
+	                break;
+	            default:
+	                break;
+	        }
+	        return regex;
+	    };
+	    Reader.prototype.push = function (token) {
+	        if (token.type === 7 /* Punctuator */ || token.type === 4 /* Keyword */) {
+	            if (token.value === '{') {
+	                this.curly = this.values.length;
+	            }
+	            else if (token.value === '(') {
+	                this.paren = this.values.length;
+	            }
+	            this.values.push(token.value);
+	        }
+	        else {
+	            this.values.push(null);
+	        }
+	    };
+	    return Reader;
+	}());
+	var Tokenizer = (function () {
+	    function Tokenizer(code, config) {
+	        this.errorHandler = new error_handler_1.ErrorHandler();
+	        this.errorHandler.tolerant = config ? (typeof config.tolerant === 'boolean' && config.tolerant) : false;
+	        this.scanner = new scanner_1.Scanner(code, this.errorHandler);
+	        this.scanner.trackComment = config ? (typeof config.comment === 'boolean' && config.comment) : false;
+	        this.trackRange = config ? (typeof config.range === 'boolean' && config.range) : false;
+	        this.trackLoc = config ? (typeof config.loc === 'boolean' && config.loc) : false;
+	        this.buffer = [];
+	        this.reader = new Reader();
+	    }
+	    Tokenizer.prototype.errors = function () {
+	        return this.errorHandler.errors;
+	    };
+	    Tokenizer.prototype.getNextToken = function () {
+	        if (this.buffer.length === 0) {
+	            var comments = this.scanner.scanComments();
+	            if (this.scanner.trackComment) {
+	                for (var i = 0; i < comments.length; ++i) {
+	                    var e = comments[i];
+	                    var value = this.scanner.source.slice(e.slice[0], e.slice[1]);
+	                    var comment = {
+	                        type: e.multiLine ? 'BlockComment' : 'LineComment',
+	                        value: value
+	                    };
+	                    if (this.trackRange) {
+	                        comment.range = e.range;
+	                    }
+	                    if (this.trackLoc) {
+	                        comment.loc = e.loc;
+	                    }
+	                    this.buffer.push(comment);
+	                }
+	            }
+	            if (!this.scanner.eof()) {
+	                var loc = void 0;
+	                if (this.trackLoc) {
+	                    loc = {
+	                        start: {
+	                            line: this.scanner.lineNumber,
+	                            column: this.scanner.index - this.scanner.lineStart
+	                        },
+	                        end: {}
+	                    };
+	                }
+	                var startRegex = (this.scanner.source[this.scanner.index] === '/') && this.reader.isRegexStart();
+	                var token = startRegex ? this.scanner.scanRegExp() : this.scanner.lex();
+	                this.reader.push(token);
+	                var entry = {
+	                    type: token_1.TokenName[token.type],
+	                    value: this.scanner.source.slice(token.start, token.end)
+	                };
+	                if (this.trackRange) {
+	                    entry.range = [token.start, token.end];
+	                }
+	                if (this.trackLoc) {
+	                    loc.end = {
+	                        line: this.scanner.lineNumber,
+	                        column: this.scanner.index - this.scanner.lineStart
+	                    };
+	                    entry.loc = loc;
+	                }
+	                if (token.type === 9 /* RegularExpression */) {
+	                    var pattern = token.pattern;
+	                    var flags = token.flags;
+	                    entry.regex = { pattern: pattern, flags: flags };
+	                }
+	                this.buffer.push(entry);
+	            }
+	        }
+	        return this.buffer.shift();
+	    };
+	    return Tokenizer;
+	}());
+	exports.Tokenizer = Tokenizer;
+
+
+/***/ }
+/******/ ])
+});
+;
\ No newline at end of file
diff --git a/node_modules/esprima/package.json b/node_modules/esprima/package.json
new file mode 100644
index 0000000..6fb63bc
--- /dev/null
+++ b/node_modules/esprima/package.json
@@ -0,0 +1,137 @@
+{
+  "_from": "esprima@^4.0.0",
+  "_id": "esprima@4.0.1",
+  "_inBundle": false,
+  "_integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==",
+  "_location": "/esprima",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "esprima@^4.0.0",
+    "name": "esprima",
+    "escapedName": "esprima",
+    "rawSpec": "^4.0.0",
+    "saveSpec": null,
+    "fetchSpec": "^4.0.0"
+  },
+  "_requiredBy": [
+    "/js-yaml"
+  ],
+  "_resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
+  "_shasum": "13b04cdb3e6c5d19df91ab6987a8695619b0aa71",
+  "_spec": "esprima@^4.0.0",
+  "_where": "C:\\Users\\marcr\\Desktop\\KorAp\\Git\\Kalamar\\node_modules\\js-yaml",
+  "author": {
+    "name": "Ariya Hidayat",
+    "email": "ariya.hidayat@gmail.com"
+  },
+  "bin": {
+    "esparse": "bin/esparse.js",
+    "esvalidate": "bin/esvalidate.js"
+  },
+  "bugs": {
+    "url": "https://github.com/jquery/esprima/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "ECMAScript parsing infrastructure for multipurpose analysis",
+  "devDependencies": {
+    "codecov.io": "~0.1.6",
+    "escomplex-js": "1.2.0",
+    "everything.js": "~1.0.3",
+    "glob": "~7.1.0",
+    "istanbul": "~0.4.0",
+    "json-diff": "~0.3.1",
+    "karma": "~1.3.0",
+    "karma-chrome-launcher": "~2.0.0",
+    "karma-detect-browsers": "~2.2.3",
+    "karma-edge-launcher": "~0.2.0",
+    "karma-firefox-launcher": "~1.0.0",
+    "karma-ie-launcher": "~1.0.0",
+    "karma-mocha": "~1.3.0",
+    "karma-safari-launcher": "~1.0.0",
+    "karma-safaritechpreview-launcher": "~0.0.4",
+    "karma-sauce-launcher": "~1.1.0",
+    "lodash": "~3.10.1",
+    "mocha": "~3.2.0",
+    "node-tick-processor": "~0.0.2",
+    "regenerate": "~1.3.2",
+    "temp": "~0.8.3",
+    "tslint": "~5.1.0",
+    "typescript": "~2.3.2",
+    "typescript-formatter": "~5.1.3",
+    "unicode-8.0.0": "~0.7.0",
+    "webpack": "~1.14.0"
+  },
+  "engines": {
+    "node": ">=4"
+  },
+  "files": [
+    "bin",
+    "dist/esprima.js"
+  ],
+  "homepage": "http://esprima.org",
+  "keywords": [
+    "ast",
+    "ecmascript",
+    "esprima",
+    "javascript",
+    "parser",
+    "syntax"
+  ],
+  "license": "BSD-2-Clause",
+  "main": "dist/esprima.js",
+  "maintainers": [
+    {
+      "name": "Ariya Hidayat",
+      "email": "ariya.hidayat@gmail.com",
+      "url": "http://ariya.ofilabs.com"
+    }
+  ],
+  "name": "esprima",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/jquery/esprima.git"
+  },
+  "scripts": {
+    "all-tests": "npm run verify-line-ending && npm run generate-fixtures && npm run unit-tests && npm run api-tests && npm run grammar-tests && npm run regression-tests && npm run hostile-env-tests",
+    "analyze-coverage": "istanbul cover test/unit-tests.js",
+    "api-tests": "mocha -R dot test/api-tests.js",
+    "appveyor": "npm run compile && npm run all-tests && npm run browser-tests",
+    "benchmark": "npm run benchmark-parser && npm run benchmark-tokenizer",
+    "benchmark-parser": "node -expose_gc test/benchmark-parser.js",
+    "benchmark-tokenizer": "node --expose_gc test/benchmark-tokenizer.js",
+    "browser-tests": "npm run compile && npm run generate-fixtures && cd test && karma start --single-run",
+    "check-coverage": "istanbul check-coverage --statement 100 --branch 100 --function 100",
+    "check-version": "node test/check-version.js",
+    "circleci": "npm test && npm run codecov && npm run downstream",
+    "code-style": "tsfmt --verify src/*.ts && tsfmt --verify test/*.js",
+    "codecov": "istanbul report cobertura && codecov < ./coverage/cobertura-coverage.xml",
+    "compile": "tsc -p src/ && webpack && node tools/fixupbundle.js",
+    "complexity": "node test/check-complexity.js",
+    "downstream": "node test/downstream.js",
+    "droneio": "npm run compile && npm run all-tests && npm run saucelabs",
+    "dynamic-analysis": "npm run analyze-coverage && npm run check-coverage",
+    "format-code": "tsfmt -r src/*.ts && tsfmt -r test/*.js",
+    "generate-fixtures": "node tools/generate-fixtures.js",
+    "generate-regex": "node tools/generate-identifier-regex.js",
+    "generate-xhtml-entities": "node tools/generate-xhtml-entities.js",
+    "grammar-tests": "node test/grammar-tests.js",
+    "hostile-env-tests": "node test/hostile-environment-tests.js",
+    "prepublish": "npm run compile",
+    "profile": "node --prof test/profile.js && mv isolate*.log v8.log && node-tick-processor",
+    "regression-tests": "node test/regression-tests.js",
+    "saucelabs": "npm run saucelabs-evergreen && npm run saucelabs-ie && npm run saucelabs-safari",
+    "saucelabs-evergreen": "cd test && karma start saucelabs-evergreen.conf.js",
+    "saucelabs-ie": "cd test && karma start saucelabs-ie.conf.js",
+    "saucelabs-safari": "cd test && karma start saucelabs-safari.conf.js",
+    "static-analysis": "npm run check-version && npm run tslint && npm run code-style && npm run complexity",
+    "test": "npm run compile && npm run all-tests && npm run static-analysis && npm run dynamic-analysis",
+    "travis": "npm test",
+    "tslint": "tslint src/*.ts",
+    "unit-tests": "node test/unit-tests.js",
+    "verify-line-ending": "node test/verify-line-ending.js"
+  },
+  "version": "4.0.1"
+}