+
+
+
-
-
+
+
-
- HTML
+ HTML
+
-
+
+
-
- CSS
+ CSS
+
-
-
+
@@ -404,7 +91,7 @@
+
- JS
+ JS
+
+
+
+
+
+
+ Add Library
+JavaScript
+ + +CSS
+ + +
+ Choose from popular libraries:
+
+
+
-
Split.js - Nathan Cahill
Codemirror - Marijn Haverbeke
Emmet - Sergey Chikuyonok
+ Esprima - Ariya Hidayat
+ Escodegen - Mozilla
Web Maker! - whhat!
@@ -499,15 +212,60 @@
- Web Maker v1.7.1
+Web Maker v2.0.0
Made by Kushagra Gour
Tweet out your feature requests, comments & suggestions to @chinchang457.
@@ -487,6 +198,8 @@
+
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Error('Invalid mapping: '+JSON.stringify({generated:b,source:d,original:c,name:e}))},b.prototype._serializeMappings=function b(){var h=0,g=1,k=0,l=0,m=0,j=0,e='',d,i=this._mappings.toArray();for(var f=0,n=i.length;f0){if(!a.compareByGeneratedPositions(d,i[f-1]))continue;e+=','}e+=c.encode(d.generatedColumn-h),h=d.generatedColumn,d.source!=null&&(e+=c.encode(this._sources.indexOf(d.source)-j),j=this._sources.indexOf(d.source),e+=c.encode(d.originalLine-1-l),l=d.originalLine-1,e+=c.encode(d.originalColumn-k),k=d.originalColumn,d.name!=null&&(e+=c.encode(this._names.indexOf(d.name)-m),m=this._names.indexOf(d.name)))}return e},b.prototype._generateSourcesContent=function b(d,c){return d.map(function(b){if(!this._sourcesContents)return null;c!=null&&(b=a.relative(c,b));var d=a.toSetString(b);return Object.prototype.hasOwnProperty.call(this._sourcesContents,d)?this._sourcesContents[d]:null},this)},b.prototype.toJSON=function a(){var 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a(b,c){this._array.forEach(b,c)},a.prototype.add=function a(b){f(this._last,b)?(this._last=b,this._array.push(b)):(this._sorted=!1,this._array.push(b))},a.prototype.toArray=function a(){return this._sorted||(this._array.sort(b.compareByGeneratedPositions),this._sorted=!0),this._array},d.MappingList=a})}),a.define('/node_modules/source-map/lib/source-map/array-set.js',function(c,d,e,f){if(typeof b!=='function')var b=a('/node_modules/source-map/node_modules/amdefine/amdefine.js',c)(c,a);b(function(c,d,e){function a(){this._array=[],this._set={}}var b=c('/node_modules/source-map/lib/source-map/util.js',e);a.fromArray=function b(e,g){var d=new a;for(var c=0,f=e.length;c=0&&b>1;return c?-a:a}var c=j('/node_modules/source-map/lib/source-map/base64.js',h),a=5,d=1<>>=a,f>0&&(h|=b),g+=c.encode(h);while(f>0);return g},f.decode=function d(i,l){var f=0,m=i.length,j=0,k=0,n,h;do{if(f>=m)throw new Error('Expected more digits in base 64 VLQ value.');h=c.decode(i.charAt(f++)),n=!!(h&b),h&=e,j+=h<=0){var c=this._originalMappings[e];while(c&&c.originalLine===d.originalLine)f.push({line:b.getArg(c,'generatedLine',null),column:b.getArg(c,'generatedColumn',null),lastColumn:b.getArg(c,'lastGeneratedColumn',null)}),c=this._originalMappings[--e]}return f.reverse()},e.SourceMapConsumer=a})}),a.define('/node_modules/source-map/lib/source-map/basic-source-map-consumer.js',function(c,d,e,f){if(typeof b!=='function')var b=a('/node_modules/source-map/node_modules/amdefine/amdefine.js',c)(c,a);b(function(d,i,e){function b(d){var b=d;typeof d==='string'&&(b=JSON.parse(d.replace(/^\)\]\}'/,'')));var e=a.getArg(b,'version'),c=a.getArg(b,'sources'),g=a.getArg(b,'names',[]),h=a.getArg(b,'sourceRoot',null),i=a.getArg(b,'sourcesContent',null),j=a.getArg(b,'mappings'),k=a.getArg(b,'file',null);if(e!=this._version)throw new Error('Unsupported version: '+e);c=c.map(a.normalize),this._names=f.fromArray(g,!0),this._sources=f.fromArray(c,!0),this.sourceRoot=h,this.sourcesContent=i,this._mappings=j,this.file=k}var a=d('/node_modules/source-map/lib/source-map/util.js',e),h=d('/node_modules/source-map/lib/source-map/binary-search.js',e),f=d('/node_modules/source-map/lib/source-map/array-set.js',e).ArraySet,c=d('/node_modules/source-map/lib/source-map/base64-vlq.js',e),g=d('/node_modules/source-map/lib/source-map/source-map-consumer.js',e).SourceMapConsumer;b.prototype=Object.create(g.prototype),b.prototype.consumer=g,b.fromSourceMap=function c(e){var d=Object.create(b.prototype);return d._names=f.fromArray(e._names.toArray(),!0),d._sources=f.fromArray(e._sources.toArray(),!0),d.sourceRoot=e._sourceRoot,d.sourcesContent=e._generateSourcesContent(d._sources.toArray(),d.sourceRoot),d.file=e._file,d.__generatedMappings=e._mappings.toArray().slice(),d.__originalMappings=e._mappings.toArray().slice().sort(a.compareByOriginalPositions),d},b.prototype._version=3,Object.defineProperty(b.prototype,'sources',{get:function(){return this._sources.toArray().map(function(b){return this.sourceRoot!=null?a.join(this.sourceRoot,b):b},this)}}),b.prototype._parseMappings=function b(m,n){var j=1,g=0,i=0,h=0,k=0,l=0,d=m,e={},f;while(d.length>0)if(d.charAt(0)===';')j++,d=d.slice(1),g=0;else if(d.charAt(0)===',')d=d.slice(1);else{if(f={},f.generatedLine=j,c.decode(d,e),f.generatedColumn=g+e.value,g=f.generatedColumn,d=e.rest,d.length>0&&!this._nextCharIsMappingSeparator(d)){if(c.decode(d,e),f.source=this._sources.at(k+e.value),k+=e.value,d=e.rest,d.length===0||this._nextCharIsMappingSeparator(d))throw new Error('Found a source, but no line and column');if(c.decode(d,e),f.originalLine=i+e.value,i=f.originalLine,f.originalLine+=1,d=e.rest,d.length===0||this._nextCharIsMappingSeparator(d))throw new Error('Found a source and line, but no column');c.decode(d,e),f.originalColumn=h+e.value,h=f.originalColumn,d=e.rest,d.length>0&&!this._nextCharIsMappingSeparator(d)&&(c.decode(d,e),f.name=this._names.at(l+e.value),l+=e.value,d=e.rest)}this.__generatedMappings.push(f),typeof f.originalLine==='number'&&this.__originalMappings.push(f)}this.__generatedMappings.sort(a.compareByGeneratedPositions),this.__originalMappings.sort(a.compareByOriginalPositions)},b.prototype._findMapping=function a(b,e,c,d,f){if(b[c]<=0)throw new TypeError('Line must be greater than or equal to 1, got '+b[c]);if(b[d]<0)throw new TypeError('Column must be greater than or equal to 0, got '+b[d]);return h.search(b,e,f)},b.prototype.computeColumnSpans=function a(){for(var b=0;b=0){var c=this._generatedMappings[f];if(c.generatedLine===e.generatedLine){var d=a.getArg(c,'source',null);return d!=null&&this.sourceRoot!=null&&(d=a.join(this.sourceRoot,d)),{source:d,line:a.getArg(c,'originalLine',null),column:a.getArg(c,'originalColumn',null),name:a.getArg(c,'name',null)}}}return{source:null,line:null,column:null,name:null}},b.prototype.sourceContentFor=function b(c,f){if(!this.sourcesContent)return null;if(this.sourceRoot!=null&&(c=a.relative(this.sourceRoot,c)),this._sources.has(c))return this.sourcesContent[this._sources.indexOf(c)];var d;if(this.sourceRoot!=null&&(d=a.urlParse(this.sourceRoot))){var e=c.replace(/^file:\/\//,'');if(d.scheme=='file'&&this._sources.has(e))return this.sourcesContent[this._sources.indexOf(e)];if((!d.path||d.path=='/')&&this._sources.has('/'+c))return this.sourcesContent[this._sources.indexOf('/'+c)]}if(f)return null;else throw new Error('"'+c+'" is not in the SourceMap.')},b.prototype.generatedPositionFor=function b(e){var c={source:a.getArg(e,'source'),originalLine:a.getArg(e,'line'),originalColumn:a.getArg(e,'column')};this.sourceRoot!=null&&(c.source=a.relative(this.sourceRoot,c.source));var f=this._findMapping(c,this._originalMappings,'originalLine','originalColumn',a.compareByOriginalPositions);if(f>=0){var d=this._originalMappings[f];return{line:a.getArg(d,'generatedLine',null),column:a.getArg(d,'generatedColumn',null),lastColumn:a.getArg(d,'lastGeneratedColumn',null)}}return{line:null,column:null,lastColumn:null}},i.BasicSourceMapConsumer=b})}),a.define('/node_modules/source-map/lib/source-map/binary-search.js',function(c,d,e,f){if(typeof b!=='function')var b=a('/node_modules/source-map/node_modules/amdefine/amdefine.js',c)(c,a);b(function(c,b,d){function a(c,d,e,f,g){var b=Math.floor((d-c)/2)+c,h=g(e,f[b],!0);return h===0?b:h>0?d-b>1?a(b,d,e,f,g):b:b-c>1?a(c,b,e,f,g):c<0?-1:c}b.search=function b(d,c,e){return c.length===0?-1:a(-1,c.length,d,c,e)}})}),a.define('/node_modules/source-map/lib/source-map/indexed-source-map-consumer.js',function(c,d,e,f){if(typeof b!=='function')var b=a('/node_modules/source-map/node_modules/amdefine/amdefine.js',c)(c,a);b(function(c,g,d){function b(d){var c=d;typeof d==='string'&&(c=JSON.parse(d.replace(/^\)\]\}'/,'')));var f=a.getArg(c,'version'),g=a.getArg(c,'sections');if(f!=this._version)throw new Error('Unsupported version: '+f);var b={line:-1,column:0};this._sections=g.map(function(f){if(f.url)throw new Error('Support for url field in sections not implemented.');var c=a.getArg(f,'offset'),d=a.getArg(c,'line'),g=a.getArg(c,'column');if(d=f)return!1;if(e=d.charCodeAt(a),!(56320<=e&&e<=57343))return!1;b=l(b,e)}if(!g(b))return!1;g=c.isIdentifierPartES6}return!0}function n(a,b){return h(a)&&!g(a,b)}function k(a,b){return i(a)&&!e(a,b)}c=a('/node_modules/esutils/lib/code.js',b),b.exports={isKeywordES5:f,isKeywordES6:d,isReservedWordES5:g,isReservedWordES6:e,isRestrictedWord:j,isIdentifierNameES5:h,isIdentifierNameES6:i,isIdentifierES5:n,isIdentifierES6:k}}()}),a.define('/node_modules/esutils/lib/code.js',function(a,b,c,d){!function(g,f,h,c,d,b){'use strict';function n(a){return 48<=a&&a<=57}function i(a){return 48<=a&&a<=57||97<=a&&a<=102||65<=a&&a<=70}function k(a){return a>=48&&a<=55}function 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diff --git a/src/lib/esprima.js b/src/lib/esprima.js
new file mode 100644
index 0000000..734de64
--- /dev/null
+++ b/src/lib/esprima.js
@@ -0,0 +1,6346 @@
+(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__) {
+
+ /*
+ Copyright (c) jQuery Foundation, Inc. and Contributors, All Rights Reserved.
+
+ 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 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.
+ */
+ "use strict";
+ var comment_handler_1 = __webpack_require__(1);
+ var parser_1 = __webpack_require__(3);
+ var jsx_parser_1 = __webpack_require__(11);
+ 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 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 ast = (parser.parseProgram());
+ if (collectComment) {
+ 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 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 = '3.1.1';
+
+
+/***/ },
+/* 1 */
+/***/ function(module, exports, __webpack_require__) {
+
+ "use strict";
+ 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 (node, 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 (node, 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 = this.stack.pop().node;
+ }
+ 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(node, metadata);
+ var leadingComments = this.findLeadingComments(node, 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";
+ exports.Syntax = {
+ AssignmentExpression: 'AssignmentExpression',
+ AssignmentPattern: 'AssignmentPattern',
+ ArrayExpression: 'ArrayExpression',
+ ArrayPattern: 'ArrayPattern',
+ ArrowFunctionExpression: 'ArrowFunctionExpression',
+ 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";
+ var assert_1 = __webpack_require__(4);
+ var messages_1 = __webpack_require__(5);
+ var error_handler_1 = __webpack_require__(6);
+ var token_1 = __webpack_require__(7);
+ var scanner_1 = __webpack_require__(8);
+ var syntax_1 = __webpack_require__(2);
+ var Node = __webpack_require__(10);
+ 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.sourceType = (options && options.sourceType === 'module') ? 'module' : 'script';
+ this.lookahead = null;
+ this.hasLineTerminator = false;
+ this.context = {
+ allowIn: true,
+ allowYield: true,
+ firstCoverInitializedNameError: null,
+ isAssignmentTarget: false,
+ isBindingElement: false,
+ inFunctionBody: false,
+ inIteration: false,
+ inSwitch: false,
+ labelSet: {},
+ strict: (this.sourceType === 'module')
+ };
+ this.tokens = [];
+ this.startMarker = {
+ index: 0,
+ lineNumber: this.scanner.lineNumber,
+ lineStart: 0
+ };
+ this.lastMarker = {
+ index: 0,
+ lineNumber: this.scanner.lineNumber,
+ lineStart: 0
+ };
+ this.nextToken();
+ this.lastMarker = {
+ index: this.scanner.index,
+ lineNumber: this.scanner.lineNumber,
+ lineStart: 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.lineNumber;
+ var column = this.lastMarker.index - this.lastMarker.lineStart + 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.index - this.lastMarker.lineStart + 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 === token_1.Token.EOF) ? messages_1.Messages.UnexpectedEOS :
+ (token.type === token_1.Token.Identifier) ? messages_1.Messages.UnexpectedIdentifier :
+ (token.type === token_1.Token.NumericLiteral) ? messages_1.Messages.UnexpectedNumber :
+ (token.type === token_1.Token.StringLiteral) ? messages_1.Messages.UnexpectedString :
+ (token.type === token_1.Token.Template) ? messages_1.Messages.UnexpectedTemplate :
+ messages_1.Messages.UnexpectedToken;
+ if (token.type === token_1.Token.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.type === token_1.Token.Template) ? token.value.raw : 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 column = token.start - this.lastMarker.lineStart + 1;
+ return this.errorHandler.createError(index, line, column, msg);
+ }
+ else {
+ var index = this.lastMarker.index;
+ var line = this.lastMarker.lineNumber;
+ var column = index - this.lastMarker.lineStart + 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;
+ 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.lineNumber,
+ column: this.startMarker.index - this.startMarker.lineStart
+ },
+ end: {
+ line: this.scanner.lineNumber,
+ column: this.scanner.index - this.scanner.lineStart
+ }
+ };
+ }
+ if (token.regex) {
+ t.regex = token.regex;
+ }
+ return t;
+ };
+ Parser.prototype.nextToken = function () {
+ var token = this.lookahead;
+ this.lastMarker.index = this.scanner.index;
+ this.lastMarker.lineNumber = this.scanner.lineNumber;
+ this.lastMarker.lineStart = this.scanner.lineStart;
+ this.collectComments();
+ this.startMarker.index = this.scanner.index;
+ this.startMarker.lineNumber = this.scanner.lineNumber;
+ this.startMarker.lineStart = this.scanner.lineStart;
+ var next;
+ next = this.scanner.lex();
+ this.hasLineTerminator = (token && next) ? (token.lineNumber !== next.lineNumber) : false;
+ if (next && this.context.strict && next.type === token_1.Token.Identifier) {
+ if (this.scanner.isStrictModeReservedWord(next.value)) {
+ next.type = token_1.Token.Keyword;
+ }
+ }
+ this.lookahead = next;
+ if (this.config.tokens && next.type !== token_1.Token.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.lineNumber,
+ column: this.startMarker.index - this.startMarker.lineStart
+ };
+ };
+ Parser.prototype.startNode = function (token) {
+ return {
+ index: token.start,
+ line: token.lineNumber,
+ column: token.start - token.lineStart
+ };
+ };
+ Parser.prototype.finalize = function (meta, node) {
+ if (this.config.range) {
+ node.range = [meta.index, this.lastMarker.index];
+ }
+ if (this.config.loc) {
+ node.loc = {
+ start: {
+ line: meta.line,
+ column: meta.column
+ },
+ end: {
+ line: this.lastMarker.lineNumber,
+ column: this.lastMarker.index - this.lastMarker.lineStart
+ }
+ };
+ if (this.config.source) {
+ node.loc.source = this.config.source;
+ }
+ }
+ if (this.delegate) {
+ var metadata = {
+ start: {
+ line: meta.line,
+ column: meta.column,
+ offset: meta.index
+ },
+ end: {
+ line: this.lastMarker.lineNumber,
+ column: this.lastMarker.index - this.lastMarker.lineStart,
+ 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 !== token_1.Token.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 === token_1.Token.Punctuator && token.value === ',') {
+ this.nextToken();
+ }
+ else if (token.type === token_1.Token.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 !== token_1.Token.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 === token_1.Token.Punctuator && this.lookahead.value === value;
+ };
+ // Return true if the next token matches the specified keyword
+ Parser.prototype.matchKeyword = function (keyword) {
+ return this.lookahead.type === token_1.Token.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 === token_1.Token.Identifier && this.lookahead.value === keyword;
+ };
+ // Return true if the next token is an assignment operator
+ Parser.prototype.matchAssign = function () {
+ if (this.lookahead.type !== token_1.Token.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 !== token_1.Token.EOF && !this.match('}')) {
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ this.lastMarker.index = this.startMarker.index;
+ this.lastMarker.lineNumber = this.startMarker.lineNumber;
+ this.lastMarker.lineStart = this.startMarker.lineStart;
+ }
+ };
+ // ECMA-262 12.2 Primary Expressions
+ Parser.prototype.parsePrimaryExpression = function () {
+ var node = this.createNode();
+ var expr;
+ var value, token, raw;
+ switch (this.lookahead.type) {
+ case token_1.Token.Identifier:
+ if (this.sourceType === 'module' && this.lookahead.value === 'await') {
+ this.tolerateUnexpectedToken(this.lookahead);
+ }
+ expr = this.finalize(node, new Node.Identifier(this.nextToken().value));
+ break;
+ case token_1.Token.NumericLiteral:
+ case token_1.Token.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 token_1.Token.BooleanLiteral:
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ token = this.nextToken();
+ token.value = (token.value === 'true');
+ raw = this.getTokenRaw(token);
+ expr = this.finalize(node, new Node.Literal(token.value, raw));
+ break;
+ case token_1.Token.NullLiteral:
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ token = this.nextToken();
+ token.value = null;
+ raw = this.getTokenRaw(token);
+ expr = this.finalize(node, new Node.Literal(token.value, raw));
+ break;
+ case token_1.Token.Template:
+ expr = this.parseTemplateLiteral();
+ break;
+ case token_1.Token.Punctuator:
+ value = this.lookahead.value;
+ switch (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.value, raw, token.regex));
+ break;
+ default:
+ this.throwUnexpectedToken(this.nextToken());
+ }
+ break;
+ case token_1.Token.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 {
+ this.throwUnexpectedToken(this.nextToken());
+ }
+ }
+ break;
+ default:
+ this.throwUnexpectedToken(this.nextToken());
+ }
+ return expr;
+ };
+ // ECMA-262 12.2.5 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));
+ };
+ // ECMA-262 12.2.6 Object Initializer
+ Parser.prototype.parsePropertyMethod = function (params) {
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ var previousStrict = this.context.strict;
+ 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;
+ return body;
+ };
+ Parser.prototype.parsePropertyMethodFunction = function () {
+ var isGenerator = false;
+ var node = this.createNode();
+ var previousAllowYield = this.context.allowYield;
+ this.context.allowYield = false;
+ 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.parseObjectPropertyKey = function () {
+ var node = this.createNode();
+ var token = this.nextToken();
+ var key = null;
+ switch (token.type) {
+ case token_1.Token.StringLiteral:
+ case token_1.Token.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 token_1.Token.Identifier:
+ case token_1.Token.BooleanLiteral:
+ case token_1.Token.NullLiteral:
+ case token_1.Token.Keyword:
+ key = this.finalize(node, new Node.Identifier(token.value));
+ break;
+ case token_1.Token.Punctuator:
+ if (token.value === '[') {
+ key = this.isolateCoverGrammar(this.parseAssignmentExpression);
+ this.expect(']');
+ }
+ else {
+ this.throwUnexpectedToken(token);
+ }
+ break;
+ default:
+ 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;
+ var value;
+ var computed = false;
+ var method = false;
+ var shorthand = false;
+ if (token.type === token_1.Token.Identifier) {
+ this.nextToken();
+ key = this.finalize(node, new Node.Identifier(token.value));
+ }
+ else if (this.match('*')) {
+ this.nextToken();
+ }
+ else {
+ computed = this.match('[');
+ key = this.parseObjectPropertyKey();
+ }
+ var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead);
+ if (token.type === token_1.Token.Identifier && token.value === 'get' && lookaheadPropertyKey) {
+ kind = 'get';
+ computed = this.match('[');
+ key = this.parseObjectPropertyKey();
+ this.context.allowYield = false;
+ value = this.parseGetterMethod();
+ }
+ else if (token.type === token_1.Token.Identifier && token.value === 'set' && lookaheadPropertyKey) {
+ kind = 'set';
+ computed = this.match('[');
+ key = this.parseObjectPropertyKey();
+ value = this.parseSetterMethod();
+ }
+ else if (token.type === token_1.Token.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(':')) {
+ 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 = this.parsePropertyMethodFunction();
+ method = true;
+ }
+ else if (token.type === token_1.Token.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));
+ };
+ // ECMA-262 12.2.9 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 value = {
+ raw: token.value.raw,
+ cooked: token.value.cooked
+ };
+ return this.finalize(node, new Node.TemplateElement(value, token.tail));
+ };
+ Parser.prototype.parseTemplateElement = function () {
+ if (this.lookahead.type !== token_1.Token.Template) {
+ this.throwUnexpectedToken();
+ }
+ var node = this.createNode();
+ var token = this.nextToken();
+ var value = {
+ raw: token.value.raw,
+ cooked: token.value.cooked
+ };
+ return this.finalize(node, new Node.TemplateElement(value, 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));
+ };
+ // ECMA-262 12.2.10 The 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: []
+ };
+ }
+ 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]
+ };
+ }
+ 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.startMarker.index < this.scanner.length) {
+ if (!this.match(',')) {
+ break;
+ }
+ this.nextToken();
+ 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
+ };
+ }
+ 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]
+ };
+ }
+ 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 params_1 = (expr.type === syntax_1.Syntax.SequenceExpression ? expr.expressions : [expr]);
+ expr = {
+ type: ArrowParameterPlaceHolder,
+ params: params_1
+ };
+ }
+ }
+ this.context.isBindingElement = false;
+ }
+ }
+ }
+ return expr;
+ };
+ // ECMA-262 12.3 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();
+ }
+ }
+ this.expect(')');
+ return args;
+ };
+ Parser.prototype.isIdentifierName = function (token) {
+ return token.type === token_1.Token.Identifier ||
+ token.type === token_1.Token.Keyword ||
+ token.type === token_1.Token.BooleanLiteral ||
+ token.type === token_1.Token.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 === token_1.Token.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.parseLeftHandSideExpressionAllowCall = function () {
+ var startToken = this.lookahead;
+ 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('(')) {
+ this.context.isBindingElement = false;
+ this.context.isAssignmentTarget = false;
+ var args = this.parseArguments();
+ expr = this.finalize(this.startNode(startToken), new Node.CallExpression(expr, args));
+ }
+ 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 === token_1.Token.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 === token_1.Token.Template && this.lookahead.head) {
+ var quasi = this.parseTemplateLiteral();
+ expr = this.finalize(node, new Node.TaggedTemplateExpression(expr, quasi));
+ }
+ else {
+ break;
+ }
+ }
+ return expr;
+ };
+ // ECMA-262 12.4 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 === token_1.Token.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;
+ };
+ // ECMA-262 12.5 Unary Operators
+ 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 {
+ 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;
+ };
+ // ECMA-262 12.6 Exponentiation Operators
+ // ECMA-262 12.7 Multiplicative Operators
+ // ECMA-262 12.8 Additive Operators
+ // ECMA-262 12.9 Bitwise Shift Operators
+ // ECMA-262 12.10 Relational Operators
+ // ECMA-262 12.11 Equality Operators
+ // ECMA-262 12.12 Binary Bitwise Operators
+ // ECMA-262 12.13 Binary Logical Operators
+ Parser.prototype.binaryPrecedence = function (token) {
+ var op = token.value;
+ var precedence;
+ if (token.type === token_1.Token.Punctuator) {
+ precedence = this.operatorPrecedence[op] || 0;
+ }
+ else if (token.type === token_1.Token.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();
+ token.prec = prec;
+ 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, right];
+ 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 <= stack[stack.length - 2].prec)) {
+ right = stack.pop();
+ var operator = stack.pop().value;
+ 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.
+ token = this.nextToken();
+ token.prec = prec;
+ stack.push(token);
+ 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];
+ markers.pop();
+ while (i > 1) {
+ var node = this.startNode(markers.pop());
+ expr = this.finalize(node, new Node.BinaryExpression(stack[i - 1].value, stack[i - 2], expr));
+ i -= 2;
+ }
+ }
+ return expr;
+ };
+ // ECMA-262 12.14 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;
+ };
+ // ECMA-262 12.15 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.YieldExpression:
+ break;
+ default:
+ assert_1.assert(param.type === syntax_1.Syntax.ObjectPattern, 'Invalid type');
+ for (var i = 0; i < param.properties.length; i++) {
+ this.checkPatternParam(options, param.properties[i].value);
+ }
+ break;
+ }
+ };
+ Parser.prototype.reinterpretAsCoverFormalsList = function (expr) {
+ var params = [expr];
+ var options;
+ switch (expr.type) {
+ case syntax_1.Syntax.Identifier:
+ break;
+ case ArrowParameterPlaceHolder:
+ params = expr.params;
+ break;
+ default:
+ return null;
+ }
+ options = {
+ 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;
+ }
+ }
+ 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 {
+ 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 (expr.type === ArrowParameterPlaceHolder || this.match('=>')) {
+ // ECMA-262 14.2 Arrow Function Definitions
+ this.context.isAssignmentTarget = false;
+ this.context.isBindingElement = false;
+ var list = this.reinterpretAsCoverFormalsList(expr);
+ if (list) {
+ if (this.hasLineTerminator) {
+ this.tolerateUnexpectedToken(this.lookahead);
+ }
+ this.context.firstCoverInitializedNameError = null;
+ var previousStrict = this.context.strict;
+ var previousAllowYield = this.context.allowYield;
+ this.context.allowYield = true;
+ var node = this.startNode(startToken);
+ this.expect('=>');
+ var body = this.match('{') ? this.parseFunctionSourceElements() :
+ 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 = this.finalize(node, new Node.ArrowFunctionExpression(list.params, body, expression));
+ this.context.strict = previousStrict;
+ this.context.allowYield = previousAllowYield;
+ }
+ }
+ 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 right = this.isolateCoverGrammar(this.parseAssignmentExpression);
+ expr = this.finalize(this.startNode(startToken), new Node.AssignmentExpression(token.value, expr, right));
+ this.context.firstCoverInitializedNameError = null;
+ }
+ }
+ }
+ return expr;
+ };
+ // ECMA-262 12.16 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.startMarker.index < this.scanner.length) {
+ if (!this.match(',')) {
+ break;
+ }
+ this.nextToken();
+ expressions.push(this.isolateCoverGrammar(this.parseAssignmentExpression));
+ }
+ expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions));
+ }
+ return expr;
+ };
+ // ECMA-262 13.2 Block
+ Parser.prototype.parseStatementListItem = function () {
+ var statement = null;
+ this.context.isAssignmentTarget = true;
+ this.context.isBindingElement = true;
+ if (this.lookahead.type === token_1.Token.Keyword) {
+ switch (this.lookahead.value) {
+ case 'export':
+ if (this.sourceType !== 'module') {
+ this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalExportDeclaration);
+ }
+ statement = this.parseExportDeclaration();
+ break;
+ case 'import':
+ if (this.sourceType !== 'module') {
+ 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));
+ };
+ // ECMA-262 13.3.1 Let and Const Declarations
+ Parser.prototype.parseLexicalBinding = function (kind, options) {
+ var node = this.createNode();
+ var params = [];
+ var id = this.parsePattern(params, kind);
+ // ECMA-262 12.2.1
+ 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')) {
+ this.expect('=');
+ init = this.isolateCoverGrammar(this.parseAssignmentExpression);
+ }
+ }
+ 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 previousIndex = this.scanner.index;
+ var previousLineNumber = this.scanner.lineNumber;
+ var previousLineStart = this.scanner.lineStart;
+ this.collectComments();
+ var next = this.scanner.lex();
+ this.scanner.index = previousIndex;
+ this.scanner.lineNumber = previousLineNumber;
+ this.scanner.lineStart = previousLineStart;
+ return (next.type === token_1.Token.Identifier) ||
+ (next.type === token_1.Token.Punctuator && next.value === '[') ||
+ (next.type === token_1.Token.Punctuator && next.value === '{') ||
+ (next.type === token_1.Token.Keyword && next.value === 'let') ||
+ (next.type === token_1.Token.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));
+ };
+ // ECMA-262 13.3.3 Destructuring Binding Patterns
+ Parser.prototype.parseBindingRestElement = function (params, kind) {
+ var node = this.createNode();
+ this.expect('...');
+ params.push(this.lookahead);
+ var arg = this.parseVariableIdentifier(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 === token_1.Token.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.UnexpectedToken);
+ }
+ 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;
+ };
+ // ECMA-262 13.3.2 Variable Statement
+ Parser.prototype.parseVariableIdentifier = function (kind) {
+ var node = this.createNode();
+ var token = this.nextToken();
+ if (token.type === token_1.Token.Keyword && token.value === 'yield') {
+ if (this.context.strict) {
+ this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord);
+ }
+ if (!this.context.allowYield) {
+ this.throwUnexpectedToken(token);
+ }
+ }
+ else if (token.type !== token_1.Token.Identifier) {
+ if (this.context.strict && token.type === token_1.Token.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.sourceType === 'module' && token.type === token_1.Token.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');
+ // ECMA-262 12.2.1
+ 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'));
+ };
+ // ECMA-262 13.4 Empty Statement
+ Parser.prototype.parseEmptyStatement = function () {
+ var node = this.createNode();
+ this.expect(';');
+ return this.finalize(node, new Node.EmptyStatement());
+ };
+ // ECMA-262 13.5 Expression Statement
+ Parser.prototype.parseExpressionStatement = function () {
+ var node = this.createNode();
+ var expr = this.parseExpression();
+ this.consumeSemicolon();
+ return this.finalize(node, new Node.ExpressionStatement(expr));
+ };
+ // ECMA-262 13.6 If statement
+ 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.parseStatement();
+ if (this.matchKeyword('else')) {
+ this.nextToken();
+ alternate = this.parseStatement();
+ }
+ }
+ return this.finalize(node, new Node.IfStatement(test, consequent, alternate));
+ };
+ // ECMA-262 13.7.2 The 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();
+ this.expect(')');
+ if (this.match(';')) {
+ this.nextToken();
+ }
+ return this.finalize(node, new Node.DoWhileStatement(body, test));
+ };
+ // ECMA-262 13.7.3 The 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));
+ };
+ // ECMA-262 13.7.4 The for Statement
+ // ECMA-262 13.7.5 The 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));
+ };
+ // ECMA-262 13.8 The continue statement
+ Parser.prototype.parseContinueStatement = function () {
+ var node = this.createNode();
+ this.expectKeyword('continue');
+ var label = null;
+ if (this.lookahead.type === token_1.Token.Identifier && !this.hasLineTerminator) {
+ label = this.parseVariableIdentifier();
+ var key = '$' + label.name;
+ if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) {
+ this.throwError(messages_1.Messages.UnknownLabel, label.name);
+ }
+ }
+ this.consumeSemicolon();
+ if (label === null && !this.context.inIteration) {
+ this.throwError(messages_1.Messages.IllegalContinue);
+ }
+ return this.finalize(node, new Node.ContinueStatement(label));
+ };
+ // ECMA-262 13.9 The break statement
+ Parser.prototype.parseBreakStatement = function () {
+ var node = this.createNode();
+ this.expectKeyword('break');
+ var label = null;
+ if (this.lookahead.type === token_1.Token.Identifier && !this.hasLineTerminator) {
+ label = this.parseVariableIdentifier();
+ var key = '$' + label.name;
+ if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) {
+ this.throwError(messages_1.Messages.UnknownLabel, label.name);
+ }
+ }
+ 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));
+ };
+ // ECMA-262 13.10 The 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 !== token_1.Token.EOF;
+ var argument = hasArgument ? this.parseExpression() : null;
+ this.consumeSemicolon();
+ return this.finalize(node, new Node.ReturnStatement(argument));
+ };
+ // ECMA-262 13.11 The with statement
+ Parser.prototype.parseWithStatement = function () {
+ if (this.context.strict) {
+ this.tolerateError(messages_1.Messages.StrictModeWith);
+ }
+ var node = this.createNode();
+ this.expectKeyword('with');
+ this.expect('(');
+ var object = this.parseExpression();
+ this.expect(')');
+ var body = this.parseStatement();
+ return this.finalize(node, new Node.WithStatement(object, body));
+ };
+ // ECMA-262 13.12 The 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));
+ };
+ // ECMA-262 13.13 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 = '$' + id.name;
+ if (Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) {
+ this.throwError(messages_1.Messages.Redeclaration, 'Label', id.name);
+ }
+ this.context.labelSet[key] = true;
+ var labeledBody = this.parseStatement();
+ delete this.context.labelSet[key];
+ statement = new Node.LabeledStatement(id, labeledBody);
+ }
+ else {
+ this.consumeSemicolon();
+ statement = new Node.ExpressionStatement(expr);
+ }
+ return this.finalize(node, statement);
+ };
+ // ECMA-262 13.14 The throw statement
+ Parser.prototype.parseThrowStatement = function () {
+ var node = this.createNode();
+ this.expectKeyword('throw');
+ if (this.hasLineTerminator) {
+ this.throwError(messages_1.Messages.NewlineAfterThrow);
+ }
+ var argument = this.parseExpression();
+ this.consumeSemicolon();
+ return this.finalize(node, new Node.ThrowStatement(argument));
+ };
+ // ECMA-262 13.15 The try statement
+ Parser.prototype.parseCatchClause = function () {
+ var node = this.createNode();
+ this.expectKeyword('catch');
+ this.expect('(');
+ if (this.match(')')) {
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ var params = [];
+ var param = this.parsePattern(params);
+ var paramMap = {};
+ for (var i = 0; i < params.length; i++) {
+ var key = '$' + 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));
+ };
+ // ECMA-262 13.16 The debugger statement
+ Parser.prototype.parseDebuggerStatement = function () {
+ var node = this.createNode();
+ this.expectKeyword('debugger');
+ this.consumeSemicolon();
+ return this.finalize(node, new Node.DebuggerStatement());
+ };
+ // ECMA-262 13 Statements
+ Parser.prototype.parseStatement = function () {
+ var statement = null;
+ switch (this.lookahead.type) {
+ case token_1.Token.BooleanLiteral:
+ case token_1.Token.NullLiteral:
+ case token_1.Token.NumericLiteral:
+ case token_1.Token.StringLiteral:
+ case token_1.Token.Template:
+ case token_1.Token.RegularExpression:
+ statement = this.parseExpressionStatement();
+ break;
+ case token_1.Token.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 token_1.Token.Identifier:
+ statement = this.parseLabelledStatement();
+ break;
+ case token_1.Token.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:
+ this.throwUnexpectedToken(this.lookahead);
+ }
+ return statement;
+ };
+ // ECMA-262 14.1 Function Definition
+ 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.startMarker.index < this.scanner.length) {
+ 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.nextToken();
+ if (this.match('{')) {
+ this.throwError(messages_1.Messages.ObjectPatternAsRestParameter);
+ }
+ params.push(this.lookahead);
+ var param = this.parseVariableIdentifier();
+ 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(param));
+ };
+ Parser.prototype.parseFormalParameter = function (options) {
+ var param;
+ var params = [];
+ var token = this.lookahead;
+ if (token.value === '...') {
+ param = this.parseRestElement(params);
+ this.validateParam(options, param.argument, param.argument.name);
+ options.params.push(param);
+ return false;
+ }
+ param = this.parsePatternWithDefault(params);
+ for (var i = 0; i < params.length; i++) {
+ this.validateParam(options, params[i], params[i].value);
+ }
+ options.params.push(param);
+ return !this.match(')');
+ };
+ Parser.prototype.parseFormalParameters = function (firstRestricted) {
+ var options;
+ options = {
+ params: [],
+ firstRestricted: firstRestricted
+ };
+ this.expect('(');
+ if (!this.match(')')) {
+ options.paramSet = {};
+ while (this.startMarker.index < this.scanner.length) {
+ if (!this.parseFormalParameter(options)) {
+ break;
+ }
+ this.expect(',');
+ }
+ }
+ this.expect(')');
+ return {
+ params: options.params,
+ stricted: options.stricted,
+ firstRestricted: options.firstRestricted,
+ message: options.message
+ };
+ };
+ Parser.prototype.parseFunctionDeclaration = function (identifierIsOptional) {
+ var node = this.createNode();
+ this.expectKeyword('function');
+ var isGenerator = 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 previousAllowYield = this.context.allowYield;
+ 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 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.allowYield = previousAllowYield;
+ return this.finalize(node, new Node.FunctionDeclaration(id, params, body, isGenerator));
+ };
+ Parser.prototype.parseFunctionExpression = function () {
+ var node = this.createNode();
+ this.expectKeyword('function');
+ var isGenerator = this.match('*');
+ if (isGenerator) {
+ this.nextToken();
+ }
+ var message;
+ var id = null;
+ var firstRestricted;
+ var previousAllowYield = this.context.allowYield;
+ 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 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.allowYield = previousAllowYield;
+ return this.finalize(node, new Node.FunctionExpression(id, params, body, isGenerator));
+ };
+ // ECMA-262 14.1.1 Directive Prologues
+ Parser.prototype.parseDirective = function () {
+ var token = this.lookahead;
+ var directive = null;
+ var node = this.createNode();
+ var expr = this.parseExpression();
+ if (expr.type === syntax_1.Syntax.Literal) {
+ directive = this.getTokenRaw(token).slice(1, -1);
+ }
+ 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 !== token_1.Token.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);
+ }
+ }
+ else {
+ if (!firstRestricted && token.octal) {
+ firstRestricted = token;
+ }
+ }
+ }
+ return body;
+ };
+ // ECMA-262 14.3 Method Definitions
+ Parser.prototype.qualifiedPropertyName = function (token) {
+ switch (token.type) {
+ case token_1.Token.Identifier:
+ case token_1.Token.StringLiteral:
+ case token_1.Token.BooleanLiteral:
+ case token_1.Token.NullLiteral:
+ case token_1.Token.NumericLiteral:
+ case token_1.Token.Keyword:
+ return true;
+ case token_1.Token.Punctuator:
+ return token.value === '[';
+ }
+ return false;
+ };
+ Parser.prototype.parseGetterMethod = function () {
+ var node = this.createNode();
+ this.expect('(');
+ this.expect(')');
+ var isGenerator = false;
+ var params = {
+ params: [],
+ stricted: null,
+ firstRestricted: null,
+ message: null
+ };
+ var previousAllowYield = this.context.allowYield;
+ 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));
+ };
+ Parser.prototype.parseSetterMethod = function () {
+ var node = this.createNode();
+ var options = {
+ params: [],
+ firstRestricted: null,
+ paramSet: {}
+ };
+ var isGenerator = false;
+ var previousAllowYield = this.context.allowYield;
+ this.context.allowYield = false;
+ this.expect('(');
+ if (this.match(')')) {
+ this.tolerateUnexpectedToken(this.lookahead);
+ }
+ else {
+ this.parseFormalParameter(options);
+ }
+ this.expect(')');
+ var method = this.parsePropertyMethod(options);
+ this.context.allowYield = previousAllowYield;
+ return this.finalize(node, new Node.FunctionExpression(null, options.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));
+ };
+ // ECMA-262 14.4 Generator Function Definitions
+ 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.match(';') && !this.match('}') && !this.match(')') && this.lookahead.type !== token_1.Token.EOF) {
+ argument = this.parseAssignmentExpression();
+ }
+ }
+ this.context.allowYield = previousAllowYield;
+ }
+ return this.finalize(node, new Node.YieldExpression(argument, delegate));
+ };
+ // ECMA-262 14.5 Class Definitions
+ Parser.prototype.parseClassElement = function (hasConstructor) {
+ var token = this.lookahead;
+ var node = this.createNode();
+ var kind;
+ var key;
+ var value;
+ var computed = false;
+ var method = false;
+ var isStatic = 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();
+ }
+ }
+ }
+ var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead);
+ if (token.type === token_1.Token.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 === token_1.Token.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 = 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.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 !== token_1.Token.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 === token_1.Token.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));
+ };
+ // ECMA-262 15.1 Scripts
+ // ECMA-262 15.2 Modules
+ Parser.prototype.parseProgram = function () {
+ var node = this.createNode();
+ var body = this.parseDirectivePrologues();
+ while (this.startMarker.index < this.scanner.length) {
+ body.push(this.parseStatementListItem());
+ }
+ return this.finalize(node, new Node.Program(body, this.sourceType));
+ };
+ // ECMA-262 15.2.2 Imports
+ Parser.prototype.parseModuleSpecifier = function () {
+ var node = this.createNode();
+ if (this.lookahead.type !== token_1.Token.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 {} ...;
+ Parser.prototype.parseImportSpecifier = function () {
+ var node = this.createNode();
+ var local;
+ var imported = this.parseIdentifierName();
+ if (this.matchContextualKeyword('as')) {
+ this.nextToken();
+ local = this.parseVariableIdentifier();
+ }
+ else {
+ local = imported;
+ }
+ 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 ...;
+ 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 === token_1.Token.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));
+ };
+ // ECMA-262 15.2.3 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('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 === token_1.Token.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 {
+ 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;
+
+
+/***/ },
+/* 4 */
+/***/ function(module, exports) {
+
+ // 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.
+ "use strict";
+ function assert(condition, message) {
+ /* istanbul ignore if */
+ if (!condition) {
+ throw new Error('ASSERT: ' + message);
+ }
+ }
+ exports.assert = assert;
+
+
+/***/ },
+/* 5 */
+/***/ function(module, exports) {
+
+ "use strict";
+ // Error messages should be identical to V8.
+ exports.Messages = {
+ UnexpectedToken: 'Unexpected token %0',
+ UnexpectedTokenIllegal: 'Unexpected token ILLEGAL',
+ UnexpectedNumber: 'Unexpected number',
+ UnexpectedString: 'Unexpected string',
+ UnexpectedIdentifier: 'Unexpected identifier',
+ UnexpectedReserved: 'Unexpected reserved word',
+ UnexpectedTemplate: 'Unexpected quasi %0',
+ UnexpectedEOS: 'Unexpected end of input',
+ NewlineAfterThrow: 'Illegal newline after throw',
+ InvalidRegExp: 'Invalid regular expression',
+ UnterminatedRegExp: 'Invalid regular expression: missing /',
+ InvalidLHSInAssignment: 'Invalid left-hand side in assignment',
+ InvalidLHSInForIn: 'Invalid left-hand side in for-in',
+ InvalidLHSInForLoop: 'Invalid left-hand side in for-loop',
+ MultipleDefaultsInSwitch: 'More than one default clause in switch statement',
+ NoCatchOrFinally: 'Missing catch or finally after try',
+ UnknownLabel: 'Undefined label \'%0\'',
+ Redeclaration: '%0 \'%1\' has already been declared',
+ IllegalContinue: 'Illegal continue statement',
+ IllegalBreak: 'Illegal break statement',
+ IllegalReturn: 'Illegal return statement',
+ StrictModeWith: 'Strict mode code may not include a with statement',
+ StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode',
+ StrictVarName: 'Variable name may not be eval or arguments in strict mode',
+ StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode',
+ StrictParamDupe: 'Strict mode function may not have duplicate parameter names',
+ StrictFunctionName: 'Function name may not be eval or arguments in strict mode',
+ StrictOctalLiteral: 'Octal literals are not allowed in strict mode.',
+ StrictDelete: 'Delete of an unqualified identifier 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',
+ StrictReservedWord: 'Use of future reserved word in strict mode',
+ TemplateOctalLiteral: 'Octal literals are not allowed in template strings.',
+ ParameterAfterRestParameter: 'Rest parameter must be last formal parameter',
+ DefaultRestParameter: 'Unexpected token =',
+ ObjectPatternAsRestParameter: 'Unexpected token {',
+ DuplicateProtoProperty: 'Duplicate __proto__ fields are not allowed in object literals',
+ ConstructorSpecialMethod: 'Class constructor may not be an accessor',
+ DuplicateConstructor: 'A class may only have one constructor',
+ StaticPrototype: 'Classes may not have static property named prototype',
+ MissingFromClause: 'Unexpected token',
+ NoAsAfterImportNamespace: 'Unexpected token',
+ InvalidModuleSpecifier: 'Unexpected token',
+ IllegalImportDeclaration: 'Unexpected token',
+ IllegalExportDeclaration: 'Unexpected token',
+ DuplicateBinding: 'Duplicate binding %0',
+ ForInOfLoopInitializer: '%0 loop variable declaration may not have an initializer'
+ };
+
+
+/***/ },
+/* 6 */
+/***/ function(module, exports) {
+
+ "use strict";
+ 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 });
+ }
+ }
+ finally {
+ 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;
+
+
+/***/ },
+/* 7 */
+/***/ function(module, exports) {
+
+ "use strict";
+ (function (Token) {
+ Token[Token["BooleanLiteral"] = 1] = "BooleanLiteral";
+ Token[Token["EOF"] = 2] = "EOF";
+ Token[Token["Identifier"] = 3] = "Identifier";
+ Token[Token["Keyword"] = 4] = "Keyword";
+ Token[Token["NullLiteral"] = 5] = "NullLiteral";
+ Token[Token["NumericLiteral"] = 6] = "NumericLiteral";
+ Token[Token["Punctuator"] = 7] = "Punctuator";
+ Token[Token["StringLiteral"] = 8] = "StringLiteral";
+ Token[Token["RegularExpression"] = 9] = "RegularExpression";
+ Token[Token["Template"] = 10] = "Template";
+ })(exports.Token || (exports.Token = {}));
+ var Token = exports.Token;
+ ;
+ exports.TokenName = {};
+ exports.TokenName[Token.BooleanLiteral] = 'Boolean';
+ exports.TokenName[Token.EOF] = '';
+ exports.TokenName[Token.Identifier] = 'Identifier';
+ exports.TokenName[Token.Keyword] = 'Keyword';
+ exports.TokenName[Token.NullLiteral] = 'Null';
+ exports.TokenName[Token.NumericLiteral] = 'Numeric';
+ exports.TokenName[Token.Punctuator] = 'Punctuator';
+ exports.TokenName[Token.StringLiteral] = 'String';
+ exports.TokenName[Token.RegularExpression] = 'RegularExpression';
+ exports.TokenName[Token.Template] = 'Template';
+
+
+/***/ },
+/* 8 */
+/***/ function(module, exports, __webpack_require__) {
+
+ "use strict";
+ var assert_1 = __webpack_require__(4);
+ var messages_1 = __webpack_require__(5);
+ var character_1 = __webpack_require__(9);
+ var token_1 = __webpack_require__(7);
+ 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.length = code.length;
+ this.index = 0;
+ this.lineNumber = (code.length > 0) ? 1 : 0;
+ this.lineStart = 0;
+ this.curlyStack = [];
+ }
+ ;
+ Scanner.prototype.eof = function () {
+ return this.index >= this.length;
+ };
+ ;
+ Scanner.prototype.throwUnexpectedToken = function (message) {
+ if (message === void 0) { message = messages_1.Messages.UnexpectedTokenIllegal; }
+ this.errorHandler.throwError(this.index, this.lineNumber, this.index - this.lineStart + 1, message);
+ };
+ ;
+ Scanner.prototype.tolerateUnexpectedToken = function () {
+ this.errorHandler.tolerateError(this.index, this.lineNumber, this.index - this.lineStart + 1, messages_1.Messages.UnexpectedTokenIllegal);
+ };
+ ;
+ // ECMA-262 11.4 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) {
+ if (this.source.slice(this.index + 1, this.index + 4) === '!--') {
+ this.index += 4; // `
+
+
+
+
+
+
+
+
+ Welcome to Web Maker
+
+
+ Web Maker lets you do web experiments quickly and even when you are offline.
+ ++ By default, Web Maker shows up in every new tab you open. But you can change that setting: + Click here to change setting. +
+ ++ You can always open this app by clicking the Web Maker icon in the top-right side of your browser. +
+ ++ +
+Whats new?
+
+ 2.0.0
+
-
+
- Save and Load - Long pending and super-useful, now you can save your creations and resume them anytime later. +
- Insert JS & CSS - Load popular JavaScript & CSS libraries in your work without writing any code. +
- Collapsed Panes - Collapse/uncollapse code panes with a single click. Your pane configuration is even saved with every creation! +
- Quick color & number change - Click on any color or number and experiment with quick values using a slider. +
- Linting - See your code errors right where you are coding. +
- No more browser hang due to infinite loops! +
- Read more about this big release +
- Like it? Please rate Web Maker +
1.7.0
- Preprocessors! - Enjoy a whole list of preprocessors for HTML(Jade & markdown), CSS(SCSS & LESS) and JavaScript(CoffeeScript & Babel).
- More awesome font for code. -
- Like it? Please rate Web Maker
@@ -521,6 +279,14 @@
+
+
+
+
@@ -554,10 +321,16 @@
+
+
+
+
+
+
diff --git a/src/lib/escodegen.browser.min.js b/src/lib/escodegen.browser.min.js
new file mode 100644
index 0000000..7d179ac
--- /dev/null
+++ b/src/lib/escodegen.browser.min.js
@@ -0,0 +1 @@
+(function(b){function a(b,d){if({}.hasOwnProperty.call(a.cache,b))return a.cache[b];var e=a.resolve(b);if(!e)throw new Error('Failed to resolve module '+b);var c={id:b,require:a,filename:b,exports:{},loaded:!1,parent:d,children:[]};d&&d.children.push(c);var f=b.slice(0,b.lastIndexOf('/')+1);return a.cache[b]=c.exports,e.call(c.exports,c,c.exports,f,b),c.loaded=!0,a.cache[b]=c.exports}a.modules={},a.cache={},a.resolve=function(b){return{}.hasOwnProperty.call(a.modules,b)?a.modules[b]:void 0},a.define=function(b,c){a.modules[b]=c};var c=function(a){return a='/',{title:'browser',version:'v4.1.1',browser:!0,env:{},argv:[],nextTick:b.setImmediate||function(a){setTimeout(a,0)},cwd:function(){return a},chdir:function(b){a=b}}}();a.define('/tools/entry-point.js',function(c,d,e,f){!function(){'use strict';b.escodegen=a('/escodegen.js',c),escodegen.browser=!0}()}),a.define('/escodegen.js',function(d,c,e,f){!function(k,e,af,N,_,m,J,n,F,A,Z,ae,S,ad,i,f,W,ac,L,aa,t,Y,B,C,x,a9,a7,w,E,G,V,Q,q,U,P,g,R,a6,X,l,y,K,a5,a4){'use strict';function ap(a){return o.Expression.hasOwnProperty(a.type)}function a3(a){return o.Statement.hasOwnProperty(a.type)}function a2(){return{indent:null,base:null,parse:null,comment:!1,format:{indent:{style:' ',base:0,adjustMultilineComment:!1},newline:'\n',space:' ',json:!1,renumber:!1,hexadecimal:!1,quotes:'single',escapeless:!1,compact:!1,parentheses:!0,semicolons:!0,safeConcatenation:!1,preserveBlankLines:!1},moz:{comprehensionExpressionStartsWithAssignment:!1,starlessGenerator:!1},sourceMap:null,sourceMapRoot:null,sourceMapWithCode:!1,directive:!1,raw:!0,verbatim:null,sourceCode:null}}function H(b,a){var c='';for(a|=0;a>0;a>>>=1,b+=b)a&1&&(c+=b);return c}function am(a){return/[\r\n]/g.test(a)}function r(b){var a=b.length;return a&&m.code.isLineTerminator(b.charCodeAt(a-1))}function a0(c,b){var a;for(a in b)b.hasOwnProperty(a)&&(c[a]=b[a]);return c}function T(b,d){function e(a){return typeof a==='object'&&a instanceof Object&&!(a instanceof RegExp)}var a,c;for(a in d)d.hasOwnProperty(a)&&(c=d[a],e(c)?e(b[a])?T(b[a],c):b[a]=T({},c):b[a]=c);return b}function ao(c){var b,e,a,f,d;if(c!==c)throw new Error('Numeric literal whose value is NaN');if(c<0||c===0&&1/c<0)throw new Error('Numeric literal whose value is negative');if(c===1/0)return A?'null':Z?'1e400':'1e+400';if(b=''+c,!Z||b.length<3)return b;e=b.indexOf('.'),!A&&b.charCodeAt(0)===48&&e===1&&(e=0,b=b.slice(1)),a=b,b=b.replace('e+','e'),f=0,(d=a.indexOf('e'))>0&&(f=+a.slice(d+1),a=a.slice(0,d)),e>=0&&(f-=a.length-e-1,a=+(a.slice(0,e)+a.slice(e+1))+''),d=0;while(a.charCodeAt(a.length+d-1)===48)--d;return d!==0&&(f-=d,a=a.slice(0,d)),f!==0&&(a+='e'+f),(a.lengthMy Library
+
+
+
+