From 2a6c71fd5a2649d391d0a5ed250e68fc598adab5 Mon Sep 17 00:00:00 2001 From: jrburke Date: Sun, 19 Feb 2017 08:56:44 -0800 Subject: [PATCH 1/5] requirejs 2.3.3 --- tools/r.js | 12291 +++++++++++++++++++++------------------- www/js/lib/require.js | 11 +- 2 files changed, 6549 insertions(+), 5753 deletions(-) diff --git a/tools/r.js b/tools/r.js index 6df0d13..0d3fd48 100644 --- a/tools/r.js +++ b/tools/r.js @@ -1,5 +1,5 @@ /** - * @license r.js 2.3.2 Copyright jQuery Foundation and other contributors. + * @license r.js 2.3.3 Copyright jQuery Foundation and other contributors. * Released under MIT license, http://github.com/requirejs/r.js/LICENSE */ @@ -19,7 +19,7 @@ var requirejs, require, define, xpcUtil; (function (console, args, readFileFunc) { var fileName, env, fs, vm, path, exec, rhinoContext, dir, nodeRequire, nodeDefine, exists, reqMain, loadedOptimizedLib, existsForNode, Cc, Ci, - version = '2.3.2', + version = '2.3.3', jsSuffixRegExp = /\.js$/, commandOption = '', useLibLoaded = {}, @@ -248,7 +248,7 @@ var requirejs, require, define, xpcUtil; } /** vim: et:ts=4:sw=4:sts=4 - * @license RequireJS 2.3.2 Copyright jQuery Foundation and other contributors. + * @license RequireJS 2.3.3 Copyright jQuery Foundation and other contributors. * Released under MIT license, https://github.com/requirejs/requirejs/blob/master/LICENSE */ //Not using strict: uneven strict support in browsers, #392, and causes @@ -260,7 +260,7 @@ var requirejs, require, define, xpcUtil; (function (global, setTimeout) { var req, s, head, baseElement, dataMain, src, interactiveScript, currentlyAddingScript, mainScript, subPath, - version = '2.3.2', + version = '2.3.3', commentRegExp = /\/\*[\s\S]*?\*\/|([^:"'=]|^)\/\/.*$/mg, cjsRequireRegExp = /[^.]\s*require\s*\(\s*["']([^'"\s]+)["']\s*\)/g, jsSuffixRegExp = /\.js$/, @@ -689,7 +689,9 @@ var requirejs, require, define, xpcUtil; //Account for relative paths if there is a base name. if (name) { if (prefix) { - if (pluginModule && pluginModule.normalize) { + if (isNormalized) { + normalizedName = name; + } else if (pluginModule && pluginModule.normalize) { //Plugin is loaded, use its normalize method. normalizedName = pluginModule.normalize(name, function (name) { return normalize(name, parentName, applyMap); @@ -1221,7 +1223,8 @@ var requirejs, require, define, xpcUtil; //prefix and name should already be normalized, no need //for applying map config again either. normalizedMap = makeModuleMap(map.prefix + '!' + name, - this.map.parentMap); + this.map.parentMap, + true); on(normalizedMap, 'defined', bind(this, function (value) { this.map.normalizedMap = normalizedMap; @@ -4467,5747 +4470,6405 @@ define('logger', ['env!env/print'], function (print) { //so that the build does not attempt to inline some env modules, //like Node's fs and path. -/* - 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. -*/ - -(function (root, factory) { - 'use strict'; - - // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js, - // Rhino, and plain browser loading. - - /* istanbul ignore next */ - if (typeof define === 'function' && define.amd) { - define('esprima', ['exports'], factory); - } else if (typeof exports !== 'undefined') { - factory(exports); - } else { - factory((root.esprima = {})); - } -}(this, function (exports) { - 'use strict'; - - var Token, - TokenName, - FnExprTokens, - Syntax, - PlaceHolders, - Messages, - Regex, - source, - strict, - index, - lineNumber, - lineStart, - hasLineTerminator, - lastIndex, - lastLineNumber, - lastLineStart, - startIndex, - startLineNumber, - startLineStart, - scanning, - length, - lookahead, - state, - extra, - isBindingElement, - isAssignmentTarget, - firstCoverInitializedNameError; - - Token = { - BooleanLiteral: 1, - EOF: 2, - Identifier: 3, - Keyword: 4, - NullLiteral: 5, - NumericLiteral: 6, - Punctuator: 7, - StringLiteral: 8, - RegularExpression: 9, - Template: 10 - }; - - TokenName = {}; - TokenName[Token.BooleanLiteral] = 'Boolean'; - TokenName[Token.EOF] = ''; - TokenName[Token.Identifier] = 'Identifier'; - TokenName[Token.Keyword] = 'Keyword'; - TokenName[Token.NullLiteral] = 'Null'; - TokenName[Token.NumericLiteral] = 'Numeric'; - TokenName[Token.Punctuator] = 'Punctuator'; - TokenName[Token.StringLiteral] = 'String'; - TokenName[Token.RegularExpression] = 'RegularExpression'; - TokenName[Token.Template] = 'Template'; - - // A function following one of those tokens is an expression. - FnExprTokens = ['(', '{', '[', 'in', 'typeof', 'instanceof', 'new', - 'return', 'case', 'delete', 'throw', 'void', - // assignment operators - '=', '+=', '-=', '*=', '/=', '%=', '<<=', '>>=', '>>>=', - '&=', '|=', '^=', ',', - // binary/unary operators - '+', '-', '*', '/', '%', '++', '--', '<<', '>>', '>>>', '&', - '|', '^', '!', '~', '&&', '||', '?', ':', '===', '==', '>=', - '<=', '<', '>', '!=', '!==']; - - 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' - }; - - PlaceHolders = { - ArrowParameterPlaceHolder: 'ArrowParameterPlaceHolder' - }; - - // Error messages should be identical to V8. - Messages = { - UnexpectedToken: 'Unexpected token %0', - 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' - }; - - // See also tools/generate-unicode-regex.js. - Regex = { - // ECMAScript 6/Unicode v7.0.0 NonAsciiIdentifierStart: - NonAsciiIdentifierStart: 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- - // ECMAScript 6/Unicode v7.0.0 NonAsciiIdentifierPart: - NonAsciiIdentifierPart: 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- }; - - // 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. - - function assert(condition, message) { - /* istanbul ignore if */ - if (!condition) { - throw new Error('ASSERT: ' + message); - } - } - - function isDecimalDigit(ch) { - return (ch >= 0x30 && ch <= 0x39); // 0..9 - } - - function isHexDigit(ch) { - return '0123456789abcdefABCDEF'.indexOf(ch) >= 0; - } - - function isOctalDigit(ch) { - return '01234567'.indexOf(ch) >= 0; - } - - function octalToDecimal(ch) { - // \0 is not octal escape sequence - var octal = (ch !== '0'), code = '01234567'.indexOf(ch); - - if (index < length && isOctalDigit(source[index])) { - octal = true; - code = code * 8 + '01234567'.indexOf(source[index++]); - - // 3 digits are only allowed when string starts - // with 0, 1, 2, 3 - if ('0123'.indexOf(ch) >= 0 && - index < length && - isOctalDigit(source[index])) { - code = code * 8 + '01234567'.indexOf(source[index++]); - } - } - - return { - code: code, - octal: octal - }; - } - - // ECMA-262 11.2 White Space - - function isWhiteSpace(ch) { - return (ch === 0x20) || (ch === 0x09) || (ch === 0x0B) || (ch === 0x0C) || (ch === 0xA0) || - (ch >= 0x1680 && [0x1680, 0x180E, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(ch) >= 0); - } - - // ECMA-262 11.3 Line Terminators - - function isLineTerminator(ch) { - return (ch === 0x0A) || (ch === 0x0D) || (ch === 0x2028) || (ch === 0x2029); - } - - // ECMA-262 11.6 Identifier Names and Identifiers - - function fromCodePoint(cp) { - return (cp < 0x10000) ? String.fromCharCode(cp) : - String.fromCharCode(0xD800 + ((cp - 0x10000) >> 10)) + - String.fromCharCode(0xDC00 + ((cp - 0x10000) & 1023)); - } - - function isIdentifierStart(ch) { - return (ch === 0x24) || (ch === 0x5F) || // $ (dollar) and _ (underscore) - (ch >= 0x41 && ch <= 0x5A) || // A..Z - (ch >= 0x61 && ch <= 0x7A) || // a..z - (ch === 0x5C) || // \ (backslash) - ((ch >= 0x80) && Regex.NonAsciiIdentifierStart.test(fromCodePoint(ch))); - } - - function isIdentifierPart(ch) { - return (ch === 0x24) || (ch === 0x5F) || // $ (dollar) and _ (underscore) - (ch >= 0x41 && ch <= 0x5A) || // A..Z - (ch >= 0x61 && ch <= 0x7A) || // a..z - (ch >= 0x30 && ch <= 0x39) || // 0..9 - (ch === 0x5C) || // \ (backslash) - ((ch >= 0x80) && Regex.NonAsciiIdentifierPart.test(fromCodePoint(ch))); - } - - // ECMA-262 11.6.2.2 Future Reserved Words - - function isFutureReservedWord(id) { - switch (id) { - case 'enum': - case 'export': - case 'import': - case 'super': - return true; - default: - return false; - } - } - - function isStrictModeReservedWord(id) { - switch (id) { - case 'implements': - case 'interface': - case 'package': - case 'private': - case 'protected': - case 'public': - case 'static': - case 'yield': - case 'let': - return true; - default: - return false; - } - } - - function isRestrictedWord(id) { - return id === 'eval' || id === 'arguments'; - } - - // ECMA-262 11.6.2.1 Keywords - - function isKeyword(id) { - switch (id.length) { - case 2: - return (id === 'if') || (id === 'in') || (id === 'do'); - case 3: - return (id === 'var') || (id === 'for') || (id === 'new') || - (id === 'try') || (id === 'let'); - case 4: - return (id === 'this') || (id === 'else') || (id === 'case') || - (id === 'void') || (id === 'with') || (id === 'enum'); - case 5: - return (id === 'while') || (id === 'break') || (id === 'catch') || - (id === 'throw') || (id === 'const') || (id === 'yield') || - (id === 'class') || (id === 'super'); - case 6: - return (id === 'return') || (id === 'typeof') || (id === 'delete') || - (id === 'switch') || (id === 'export') || (id === 'import'); - case 7: - return (id === 'default') || (id === 'finally') || (id === 'extends'); - case 8: - return (id === 'function') || (id === 'continue') || (id === 'debugger'); - case 10: - return (id === 'instanceof'); - default: - return false; - } - } - - // ECMA-262 11.4 Comments - - function addComment(type, value, start, end, loc) { - var comment; - - assert(typeof start === 'number', 'Comment must have valid position'); - - state.lastCommentStart = start; - - comment = { - type: type, - value: value - }; - if (extra.range) { - comment.range = [start, end]; - } - if (extra.loc) { - comment.loc = loc; - } - extra.comments.push(comment); - if (extra.attachComment) { - extra.leadingComments.push(comment); - extra.trailingComments.push(comment); - } - if (extra.tokenize) { - comment.type = comment.type + 'Comment'; - if (extra.delegate) { - comment = extra.delegate(comment); - } - extra.tokens.push(comment); - } - } - - function skipSingleLineComment(offset) { - var start, loc, ch, comment; - - start = index - offset; - loc = { - start: { - line: lineNumber, - column: index - lineStart - offset - } - }; - - while (index < length) { - ch = source.charCodeAt(index); - ++index; - if (isLineTerminator(ch)) { - hasLineTerminator = true; - if (extra.comments) { - comment = source.slice(start + offset, index - 1); - loc.end = { - line: lineNumber, - column: index - lineStart - 1 - }; - addComment('Line', comment, start, index - 1, loc); - } - if (ch === 13 && source.charCodeAt(index) === 10) { - ++index; - } - ++lineNumber; - lineStart = index; - return; - } - } - - if (extra.comments) { - comment = source.slice(start + offset, index); - loc.end = { - line: lineNumber, - column: index - lineStart - }; - addComment('Line', comment, start, index, loc); - } - } - - function skipMultiLineComment() { - var start, loc, ch, comment; - - if (extra.comments) { - start = index - 2; - loc = { - start: { - line: lineNumber, - column: index - lineStart - 2 - } - }; - } - - while (index < length) { - ch = source.charCodeAt(index); - if (isLineTerminator(ch)) { - if (ch === 0x0D && source.charCodeAt(index + 1) === 0x0A) { - ++index; - } - hasLineTerminator = true; - ++lineNumber; - ++index; - lineStart = index; - } else if (ch === 0x2A) { - // Block comment ends with '*/'. - if (source.charCodeAt(index + 1) === 0x2F) { - ++index; - ++index; - if (extra.comments) { - comment = source.slice(start + 2, index - 2); - loc.end = { - line: lineNumber, - column: index - lineStart - }; - addComment('Block', comment, start, index, loc); - } - return; - } - ++index; - } else { - ++index; - } - } - - // Ran off the end of the file - the whole thing is a comment - if (extra.comments) { - loc.end = { - line: lineNumber, - column: index - lineStart - }; - comment = source.slice(start + 2, index); - addComment('Block', comment, start, index, loc); - } - tolerateUnexpectedToken(); - } - - function skipComment() { - var ch, start; - hasLineTerminator = false; - - start = (index === 0); - while (index < length) { - ch = source.charCodeAt(index); - - if (isWhiteSpace(ch)) { - ++index; - } else if (isLineTerminator(ch)) { - hasLineTerminator = true; - ++index; - if (ch === 0x0D && source.charCodeAt(index) === 0x0A) { - ++index; - } - ++lineNumber; - lineStart = index; - start = true; - } else if (ch === 0x2F) { // U+002F is '/' - ch = source.charCodeAt(index + 1); - if (ch === 0x2F) { - ++index; - ++index; - skipSingleLineComment(2); - start = true; - } else if (ch === 0x2A) { // U+002A is '*' - ++index; - ++index; - skipMultiLineComment(); - } else { - break; - } - } else if (start && ch === 0x2D) { // U+002D is '-' - // U+003E is '>' - if ((source.charCodeAt(index + 1) === 0x2D) && (source.charCodeAt(index + 2) === 0x3E)) { - // '-->' is a single-line comment - index += 3; - skipSingleLineComment(3); - } else { - break; - } - } else if (ch === 0x3C) { // U+003C is '<' - if (source.slice(index + 1, index + 4) === '!--') { - ++index; // `<` - ++index; // `!` - ++index; // `-` - ++index; // `-` - skipSingleLineComment(4); - } else { - break; - } - } else { - break; - } - } - } - - function scanHexEscape(prefix) { - var i, len, ch, code = 0; - - len = (prefix === 'u') ? 4 : 2; - for (i = 0; i < len; ++i) { - if (index < length && isHexDigit(source[index])) { - ch = source[index++]; - code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase()); - } else { - return ''; - } - } - return String.fromCharCode(code); - } - - function scanUnicodeCodePointEscape() { - var ch, code; +(function webpackUniversalModuleDefinition(root, factory) { +/* istanbul ignore next */ + if(typeof define === 'function' && define.amd) + define('esprima', [], 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 = {}; - ch = source[index]; - code = 0; +/******/ // The require function +/******/ function __webpack_require__(moduleId) { - // At least, one hex digit is required. - if (ch === '}') { - throwUnexpectedToken(); - } +/******/ // Check if module is in cache +/* istanbul ignore if */ +/******/ if(installedModules[moduleId]) +/******/ return installedModules[moduleId].exports; - while (index < length) { - ch = source[index++]; - if (!isHexDigit(ch)) { - break; - } - code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase()); - } +/******/ // Create a new module (and put it into the cache) +/******/ var module = installedModules[moduleId] = { +/******/ exports: {}, +/******/ id: moduleId, +/******/ loaded: false +/******/ }; - if (code > 0x10FFFF || ch !== '}') { - throwUnexpectedToken(); - } +/******/ // Execute the module function +/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); - return fromCodePoint(code); - } +/******/ // Flag the module as loaded +/******/ module.loaded = true; - function codePointAt(i) { - var cp, first, second; +/******/ // Return the exports of the module +/******/ return module.exports; +/******/ } - cp = source.charCodeAt(i); - if (cp >= 0xD800 && cp <= 0xDBFF) { - second = source.charCodeAt(i + 1); - if (second >= 0xDC00 && second <= 0xDFFF) { - first = cp; - cp = (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000; - } - } - return cp; - } +/******/ // expose the modules object (__webpack_modules__) +/******/ __webpack_require__.m = modules; - function getComplexIdentifier() { - var cp, ch, id; +/******/ // expose the module cache +/******/ __webpack_require__.c = installedModules; - cp = codePointAt(index); - id = fromCodePoint(cp); - index += id.length; +/******/ // __webpack_public_path__ +/******/ __webpack_require__.p = ""; - // '\u' (U+005C, U+0075) denotes an escaped character. - if (cp === 0x5C) { - if (source.charCodeAt(index) !== 0x75) { - throwUnexpectedToken(); - } - ++index; - if (source[index] === '{') { - ++index; - ch = scanUnicodeCodePointEscape(); - } else { - ch = scanHexEscape('u'); - cp = ch.charCodeAt(0); - if (!ch || ch === '\\' || !isIdentifierStart(cp)) { - throwUnexpectedToken(); - } - } - id = ch; - } +/******/ // Load entry module and return exports +/******/ return __webpack_require__(0); +/******/ }) +/************************************************************************/ +/******/ ([ +/* 0 */ +/***/ function(module, exports, __webpack_require__) { - while (index < length) { - cp = codePointAt(index); - if (!isIdentifierPart(cp)) { - break; - } - ch = fromCodePoint(cp); - id += ch; - index += ch.length; + /* + Copyright JS Foundation and other contributors, https://js.foundation/ + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL 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 = '3.1.3'; - // '\u' (U+005C, U+0075) denotes an escaped character. - if (cp === 0x5C) { - id = id.substr(0, id.length - 1); - if (source.charCodeAt(index) !== 0x75) { - throwUnexpectedToken(); - } - ++index; - if (source[index] === '{') { - ++index; - ch = scanUnicodeCodePointEscape(); - } else { - ch = scanHexEscape('u'); - cp = ch.charCodeAt(0); - if (!ch || ch === '\\' || !isIdentifierPart(cp)) { - throwUnexpectedToken(); - } - } - id += ch; - } - } - return id; - } +/***/ }, +/* 1 */ +/***/ function(module, exports, __webpack_require__) { - function getIdentifier() { - var start, ch; - - start = index++; - while (index < length) { - ch = source.charCodeAt(index); - if (ch === 0x5C) { - // Blackslash (U+005C) marks Unicode escape sequence. - index = start; - return getComplexIdentifier(); - } else if (ch >= 0xD800 && ch < 0xDFFF) { - // Need to handle surrogate pairs. - index = start; - return getComplexIdentifier(); - } - if (isIdentifierPart(ch)) { - ++index; - } else { - break; - } - } + "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; - return source.slice(start, index); - } - function scanIdentifier() { - var start, id, type; +/***/ }, +/* 2 */ +/***/ function(module, exports) { - start = index; + "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' + }; - // Backslash (U+005C) starts an escaped character. - id = (source.charCodeAt(index) === 0x5C) ? getComplexIdentifier() : getIdentifier(); - // There is no keyword or literal with only one character. - // Thus, it must be an identifier. - if (id.length === 1) { - type = Token.Identifier; - } else if (isKeyword(id)) { - type = Token.Keyword; - } else if (id === 'null') { - type = Token.NullLiteral; - } else if (id === 'true' || id === 'false') { - type = Token.BooleanLiteral; - } else { - type = Token.Identifier; - } +/***/ }, +/* 3 */ +/***/ function(module, exports, __webpack_require__) { - return { - type: type, - value: id, - lineNumber: lineNumber, - lineStart: lineStart, - start: start, - end: index - }; - } - - - // ECMA-262 11.7 Punctuators - - function scanPunctuator() { - var token, str; - - token = { - type: Token.Punctuator, - value: '', - lineNumber: lineNumber, - lineStart: lineStart, - start: index, - end: index - }; - - // Check for most common single-character punctuators. - str = source[index]; - switch (str) { - - case '(': - if (extra.tokenize) { - extra.openParenToken = extra.tokenValues.length; - } - ++index; - break; - - case '{': - if (extra.tokenize) { - extra.openCurlyToken = extra.tokenValues.length; - } - state.curlyStack.push('{'); - ++index; - break; - - case '.': - ++index; - if (source[index] === '.' && source[index + 1] === '.') { - // Spread operator: ... - index += 2; - str = '...'; - } - break; - - case '}': - ++index; - state.curlyStack.pop(); - break; - case ')': - case ';': - case ',': - case '[': - case ']': - case ':': - case '?': - case '~': - ++index; - break; - - default: - // 4-character punctuator. - str = source.substr(index, 4); - if (str === '>>>=') { - index += 4; - } else { - - // 3-character punctuators. - str = str.substr(0, 3); - if (str === '===' || str === '!==' || str === '>>>' || - str === '<<=' || str === '>>=') { - index += 3; - } else { - - // 2-character punctuators. - str = str.substr(0, 2); - if (str === '&&' || str === '||' || str === '==' || str === '!=' || - str === '+=' || str === '-=' || str === '*=' || str === '/=' || - str === '++' || str === '--' || str === '<<' || str === '>>' || - str === '&=' || str === '|=' || str === '^=' || str === '%=' || - str === '<=' || str === '>=' || str === '=>') { - index += 2; - } else { - - // 1-character punctuators. - str = source[index]; - if ('<>=!+-*%&|^/'.indexOf(str) >= 0) { - ++index; - } - } - } - } - } - - if (index === token.start) { - throwUnexpectedToken(); - } - - token.end = index; - token.value = str; - return token; - } - - // ECMA-262 11.8.3 Numeric Literals - - function scanHexLiteral(start) { - var number = ''; - - while (index < length) { - if (!isHexDigit(source[index])) { - break; - } - number += source[index++]; - } - - if (number.length === 0) { - throwUnexpectedToken(); - } - - if (isIdentifierStart(source.charCodeAt(index))) { - throwUnexpectedToken(); - } - - return { - type: Token.NumericLiteral, - value: parseInt('0x' + number, 16), - lineNumber: lineNumber, - lineStart: lineStart, - start: start, - end: index - }; - } - - function scanBinaryLiteral(start) { - var ch, number; - - number = ''; - - while (index < length) { - ch = source[index]; - if (ch !== '0' && ch !== '1') { - break; - } - number += source[index++]; - } - - if (number.length === 0) { - // only 0b or 0B - throwUnexpectedToken(); - } - - if (index < length) { - ch = source.charCodeAt(index); - /* istanbul ignore else */ - if (isIdentifierStart(ch) || isDecimalDigit(ch)) { - throwUnexpectedToken(); - } - } - - return { - type: Token.NumericLiteral, - value: parseInt(number, 2), - lineNumber: lineNumber, - lineStart: lineStart, - start: start, - end: index - }; - } - - function scanOctalLiteral(prefix, start) { - var number, octal; - - if (isOctalDigit(prefix)) { - octal = true; - number = '0' + source[index++]; - } else { - octal = false; - ++index; - number = ''; - } - - while (index < length) { - if (!isOctalDigit(source[index])) { - break; - } - number += source[index++]; - } - - if (!octal && number.length === 0) { - // only 0o or 0O - throwUnexpectedToken(); - } - - if (isIdentifierStart(source.charCodeAt(index)) || isDecimalDigit(source.charCodeAt(index))) { - throwUnexpectedToken(); - } - - return { - type: Token.NumericLiteral, - value: parseInt(number, 8), - octal: octal, - lineNumber: lineNumber, - lineStart: lineStart, - start: start, - end: index - }; - } - - function isImplicitOctalLiteral() { - var i, ch; - - // Implicit octal, unless there is a non-octal digit. - // (Annex B.1.1 on Numeric Literals) - for (i = index + 1; i < length; ++i) { - ch = source[i]; - if (ch === '8' || ch === '9') { - return false; - } - if (!isOctalDigit(ch)) { - return true; - } - } - - return true; - } - - function scanNumericLiteral() { - var number, start, ch; - - ch = source[index]; - assert(isDecimalDigit(ch.charCodeAt(0)) || (ch === '.'), - 'Numeric literal must start with a decimal digit or a decimal point'); - - start = index; - number = ''; - if (ch !== '.') { - number = source[index++]; - ch = source[index]; - - // Hex number starts with '0x'. - // Octal number starts with '0'. - // Octal number in ES6 starts with '0o'. - // Binary number in ES6 starts with '0b'. - if (number === '0') { - if (ch === 'x' || ch === 'X') { - ++index; - return scanHexLiteral(start); - } - if (ch === 'b' || ch === 'B') { - ++index; - return scanBinaryLiteral(start); - } - if (ch === 'o' || ch === 'O') { - return scanOctalLiteral(ch, start); - } - - if (isOctalDigit(ch)) { - if (isImplicitOctalLiteral()) { - return scanOctalLiteral(ch, start); - } - } - } - - while (isDecimalDigit(source.charCodeAt(index))) { - number += source[index++]; - } - ch = source[index]; - } - - if (ch === '.') { - number += source[index++]; - while (isDecimalDigit(source.charCodeAt(index))) { - number += source[index++]; - } - ch = source[index]; - } - - if (ch === 'e' || ch === 'E') { - number += source[index++]; - - ch = source[index]; - if (ch === '+' || ch === '-') { - number += source[index++]; - } - if (isDecimalDigit(source.charCodeAt(index))) { - while (isDecimalDigit(source.charCodeAt(index))) { - number += source[index++]; - } - } else { - throwUnexpectedToken(); - } - } - - if (isIdentifierStart(source.charCodeAt(index))) { - throwUnexpectedToken(); - } - - return { - type: Token.NumericLiteral, - value: parseFloat(number), - lineNumber: lineNumber, - lineStart: lineStart, - start: start, - end: index - }; - } - - // ECMA-262 11.8.4 String Literals - - function scanStringLiteral() { - var str = '', quote, start, ch, unescaped, octToDec, octal = false; - - quote = source[index]; - assert((quote === '\'' || quote === '"'), - 'String literal must starts with a quote'); - - start = index; - ++index; - - while (index < length) { - ch = source[index++]; - - if (ch === quote) { - quote = ''; - break; - } else if (ch === '\\') { - ch = source[index++]; - if (!ch || !isLineTerminator(ch.charCodeAt(0))) { - switch (ch) { - case 'u': - case 'x': - if (source[index] === '{') { - ++index; - str += scanUnicodeCodePointEscape(); - } else { - unescaped = scanHexEscape(ch); - if (!unescaped) { - throw throwUnexpectedToken(); - } - str += unescaped; - } - break; - case 'n': - str += '\n'; - break; - case 'r': - str += '\r'; - break; - case 't': - str += '\t'; - break; - case 'b': - str += '\b'; - break; - case 'f': - str += '\f'; - break; - case 'v': - str += '\x0B'; - break; - case '8': - case '9': - str += ch; - tolerateUnexpectedToken(); - break; - - default: - if (isOctalDigit(ch)) { - octToDec = octalToDecimal(ch); - - octal = octToDec.octal || octal; - str += String.fromCharCode(octToDec.code); - } else { - str += ch; - } - break; - } - } else { - ++lineNumber; - if (ch === '\r' && source[index] === '\n') { - ++index; - } - lineStart = index; - } - } else if (isLineTerminator(ch.charCodeAt(0))) { - break; - } else { - str += ch; - } - } - - if (quote !== '') { - index = start; - throwUnexpectedToken(); - } - - return { - type: Token.StringLiteral, - value: str, - octal: octal, - lineNumber: startLineNumber, - lineStart: startLineStart, - start: start, - end: index - }; - } - - // ECMA-262 11.8.6 Template Literal Lexical Components - - function scanTemplate() { - var cooked = '', ch, start, rawOffset, terminated, head, tail, restore, unescaped; - - terminated = false; - tail = false; - start = index; - head = (source[index] === '`'); - rawOffset = 2; - - ++index; - - while (index < length) { - ch = source[index++]; - if (ch === '`') { - rawOffset = 1; - tail = true; - terminated = true; - break; - } else if (ch === '$') { - if (source[index] === '{') { - state.curlyStack.push('${'); - ++index; - terminated = true; - break; - } - cooked += ch; - } else if (ch === '\\') { - ch = source[index++]; - if (!isLineTerminator(ch.charCodeAt(0))) { - switch (ch) { - case 'n': - cooked += '\n'; - break; - case 'r': - cooked += '\r'; - break; - case 't': - cooked += '\t'; - break; - case 'u': - case 'x': - if (source[index] === '{') { - ++index; - cooked += scanUnicodeCodePointEscape(); - } else { - restore = index; - unescaped = scanHexEscape(ch); - if (unescaped) { - cooked += unescaped; - } else { - index = restore; - cooked += ch; - } - } - break; - case 'b': - cooked += '\b'; - break; - case 'f': - cooked += '\f'; - break; - case 'v': - cooked += '\v'; - break; - - default: - if (ch === '0') { - if (isDecimalDigit(source.charCodeAt(index))) { - // Illegal: \01 \02 and so on - throwError(Messages.TemplateOctalLiteral); - } - cooked += '\0'; - } else if (isOctalDigit(ch)) { - // Illegal: \1 \2 - throwError(Messages.TemplateOctalLiteral); - } else { - cooked += ch; - } - break; - } - } else { - ++lineNumber; - if (ch === '\r' && source[index] === '\n') { - ++index; - } - lineStart = index; - } - } else if (isLineTerminator(ch.charCodeAt(0))) { - ++lineNumber; - if (ch === '\r' && source[index] === '\n') { - ++index; - } - lineStart = index; - cooked += '\n'; - } else { - cooked += ch; - } - } - - if (!terminated) { - throwUnexpectedToken(); - } - - if (!head) { - state.curlyStack.pop(); - } - - return { - type: Token.Template, - value: { - cooked: cooked, - raw: source.slice(start + 1, index - rawOffset) - }, - head: head, - tail: tail, - lineNumber: lineNumber, - lineStart: lineStart, - start: start, - end: index - }; - } - - // ECMA-262 11.8.5 Regular Expression Literals - - function testRegExp(pattern, flags) { - // The BMP character to use as a replacement for astral symbols when - // translating an ES6 "u"-flagged pattern to an ES5-compatible - // approximation. - // Note: replacing with '\uFFFF' enables false positives in unlikely - // scenarios. For example, `[\u{1044f}-\u{10440}]` is an invalid - // pattern that would not be detected by this substitution. - var astralSubstitute = '\uFFFF', - tmp = pattern; - - if (flags.indexOf('u') >= 0) { - tmp = tmp - // Replace every Unicode escape sequence with the equivalent - // BMP character or a constant ASCII code point in the case of - // astral symbols. (See the above note on `astralSubstitute` - // for more information.) - .replace(/\\u\{([0-9a-fA-F]+)\}|\\u([a-fA-F0-9]{4})/g, function ($0, $1, $2) { - var codePoint = parseInt($1 || $2, 16); - if (codePoint > 0x10FFFF) { - throwUnexpectedToken(null, Messages.InvalidRegExp); - } - if (codePoint <= 0xFFFF) { - return String.fromCharCode(codePoint); - } - return astralSubstitute; - }) - // Replace each paired surrogate with a single ASCII symbol to - // avoid throwing on regular expressions that are only valid in - // combination with the "u" flag. - .replace( - /[\uD800-\uDBFF][\uDC00-\uDFFF]/g, - astralSubstitute - ); - } - - // First, detect invalid regular expressions. - try { - RegExp(tmp); - } catch (e) { - throwUnexpectedToken(null, Messages.InvalidRegExp); - } - - // Return a regular expression object for this pattern-flag pair, or - // `null` in case the current environment doesn't support the flags it - // uses. - try { - return new RegExp(pattern, flags); - } catch (exception) { - /* istanbul ignore next */ - return null; - } - } - - function scanRegExpBody() { - var ch, str, classMarker, terminated, body; - - ch = source[index]; - assert(ch === '/', 'Regular expression literal must start with a slash'); - str = source[index++]; - - classMarker = false; - terminated = false; - while (index < length) { - ch = source[index++]; - str += ch; - if (ch === '\\') { - ch = source[index++]; - // ECMA-262 7.8.5 - if (isLineTerminator(ch.charCodeAt(0))) { - throwUnexpectedToken(null, Messages.UnterminatedRegExp); - } - str += ch; - } else if (isLineTerminator(ch.charCodeAt(0))) { - throwUnexpectedToken(null, Messages.UnterminatedRegExp); - } else if (classMarker) { - if (ch === ']') { - classMarker = false; - } - } else { - if (ch === '/') { - terminated = true; - break; - } else if (ch === '[') { - classMarker = true; - } - } - } - - if (!terminated) { - throwUnexpectedToken(null, Messages.UnterminatedRegExp); - } - - // Exclude leading and trailing slash. - body = str.substr(1, str.length - 2); - return { - value: body, - literal: str - }; - } - - function scanRegExpFlags() { - var ch, str, flags, restore; - - str = ''; - flags = ''; - while (index < length) { - ch = source[index]; - if (!isIdentifierPart(ch.charCodeAt(0))) { - break; - } - - ++index; - if (ch === '\\' && index < length) { - ch = source[index]; - if (ch === 'u') { - ++index; - restore = index; - ch = scanHexEscape('u'); - if (ch) { - flags += ch; - for (str += '\\u'; restore < index; ++restore) { - str += source[restore]; - } - } else { - index = restore; - flags += 'u'; - str += '\\u'; - } - tolerateUnexpectedToken(); - } else { - str += '\\'; - tolerateUnexpectedToken(); - } - } else { - flags += ch; - str += ch; - } - } - - return { - value: flags, - literal: str - }; - } - - function scanRegExp() { - var start, body, flags, value; - scanning = true; - - lookahead = null; - skipComment(); - start = index; - - body = scanRegExpBody(); - flags = scanRegExpFlags(); - value = testRegExp(body.value, flags.value); - scanning = false; - if (extra.tokenize) { - return { - type: Token.RegularExpression, - value: value, - regex: { - pattern: body.value, - flags: flags.value - }, - lineNumber: lineNumber, - lineStart: lineStart, - start: start, - end: index - }; - } - - return { - literal: body.literal + flags.literal, - value: value, - regex: { - pattern: body.value, - flags: flags.value - }, - start: start, - end: index - }; - } - - function collectRegex() { - var pos, loc, regex, token; - - skipComment(); - - pos = index; - loc = { - start: { - line: lineNumber, - column: index - lineStart - } - }; - - regex = scanRegExp(); - - loc.end = { - line: lineNumber, - column: index - lineStart - }; - - /* istanbul ignore next */ - if (!extra.tokenize) { - // Pop the previous token, which is likely '/' or '/=' - if (extra.tokens.length > 0) { - token = extra.tokens[extra.tokens.length - 1]; - if (token.range[0] === pos && token.type === 'Punctuator') { - if (token.value === '/' || token.value === '/=') { - extra.tokens.pop(); - } - } - } - - extra.tokens.push({ - type: 'RegularExpression', - value: regex.literal, - regex: regex.regex, - range: [pos, index], - loc: loc - }); - } - - return regex; - } - - function isIdentifierName(token) { - return token.type === Token.Identifier || - token.type === Token.Keyword || - token.type === Token.BooleanLiteral || - token.type === Token.NullLiteral; - } - - // Using the following algorithm: - // https://github.com/mozilla/sweet.js/wiki/design - - function advanceSlash() { - var regex, previous, check; - - function testKeyword(value) { - return value && (value.length > 1) && (value[0] >= 'a') && (value[0] <= 'z'); - } - - previous = extra.tokenValues[extra.tokenValues.length - 1]; - regex = (previous !== null); - - switch (previous) { - case 'this': - case ']': - regex = false; - break; - - case ')': - check = extra.tokenValues[extra.openParenToken - 1]; - regex = (check === 'if' || check === 'while' || check === 'for' || check === 'with'); - break; - - case '}': - // Dividing a function by anything makes little sense, - // but we have to check for that. - regex = false; - if (testKeyword(extra.tokenValues[extra.openCurlyToken - 3])) { - // Anonymous function, e.g. function(){} /42 - check = extra.tokenValues[extra.openCurlyToken - 4]; - regex = check ? (FnExprTokens.indexOf(check) < 0) : false; - } else if (testKeyword(extra.tokenValues[extra.openCurlyToken - 4])) { - // Named function, e.g. function f(){} /42/ - check = extra.tokenValues[extra.openCurlyToken - 5]; - regex = check ? (FnExprTokens.indexOf(check) < 0) : true; - } - } - - return regex ? collectRegex() : scanPunctuator(); - } - - function advance() { - var cp, token; - - if (index >= length) { - return { - type: Token.EOF, - lineNumber: lineNumber, - lineStart: lineStart, - start: index, - end: index - }; - } - - cp = source.charCodeAt(index); - - if (isIdentifierStart(cp)) { - token = scanIdentifier(); - if (strict && isStrictModeReservedWord(token.value)) { - token.type = Token.Keyword; - } - return token; - } - - // Very common: ( and ) and ; - if (cp === 0x28 || cp === 0x29 || cp === 0x3B) { - return scanPunctuator(); - } - - // String literal starts with single quote (U+0027) or double quote (U+0022). - if (cp === 0x27 || cp === 0x22) { - return scanStringLiteral(); - } - - // Dot (.) U+002E can also start a floating-point number, hence the need - // to check the next character. - if (cp === 0x2E) { - if (isDecimalDigit(source.charCodeAt(index + 1))) { - return scanNumericLiteral(); - } - return scanPunctuator(); - } - - if (isDecimalDigit(cp)) { - return scanNumericLiteral(); - } - - // Slash (/) U+002F can also start a regex. - if (extra.tokenize && cp === 0x2F) { - return advanceSlash(); - } - - // Template literals start with ` (U+0060) for template head - // or } (U+007D) for template middle or template tail. - if (cp === 0x60 || (cp === 0x7D && state.curlyStack[state.curlyStack.length - 1] === '${')) { - return scanTemplate(); - } - - // Possible identifier start in a surrogate pair. - if (cp >= 0xD800 && cp < 0xDFFF) { - cp = codePointAt(index); - if (isIdentifierStart(cp)) { - return scanIdentifier(); - } - } - - return scanPunctuator(); - } - - function collectToken() { - var loc, token, value, entry; - - loc = { - start: { - line: lineNumber, - column: index - lineStart - } - }; - - token = advance(); - loc.end = { - line: lineNumber, - column: index - lineStart - }; - - if (token.type !== Token.EOF) { - value = source.slice(token.start, token.end); - entry = { - type: TokenName[token.type], - value: value, - range: [token.start, token.end], - loc: loc - }; - if (token.regex) { - entry.regex = { - pattern: token.regex.pattern, - flags: token.regex.flags - }; - } - if (extra.tokenValues) { - extra.tokenValues.push((entry.type === 'Punctuator' || entry.type === 'Keyword') ? entry.value : null); - } - if (extra.tokenize) { - if (!extra.range) { - delete entry.range; - } - if (!extra.loc) { - delete entry.loc; - } - if (extra.delegate) { - entry = extra.delegate(entry); - } - } - extra.tokens.push(entry); - } - - return token; - } - - function lex() { - var token; - scanning = true; - - lastIndex = index; - lastLineNumber = lineNumber; - lastLineStart = lineStart; - - skipComment(); - - token = lookahead; - - startIndex = index; - startLineNumber = lineNumber; - startLineStart = lineStart; - - lookahead = (typeof extra.tokens !== 'undefined') ? collectToken() : advance(); - scanning = false; - return token; - } - - function peek() { - scanning = true; - - skipComment(); - - lastIndex = index; - lastLineNumber = lineNumber; - lastLineStart = lineStart; - - startIndex = index; - startLineNumber = lineNumber; - startLineStart = lineStart; - - lookahead = (typeof extra.tokens !== 'undefined') ? collectToken() : advance(); - scanning = false; - } - - function Position() { - this.line = startLineNumber; - this.column = startIndex - startLineStart; - } - - function SourceLocation() { - this.start = new Position(); - this.end = null; - } - - function WrappingSourceLocation(startToken) { - this.start = { - line: startToken.lineNumber, - column: startToken.start - startToken.lineStart - }; - this.end = null; - } - - function Node() { - if (extra.range) { - this.range = [startIndex, 0]; - } - if (extra.loc) { - this.loc = new SourceLocation(); - } - } - - function WrappingNode(startToken) { - if (extra.range) { - this.range = [startToken.start, 0]; - } - if (extra.loc) { - this.loc = new WrappingSourceLocation(startToken); - } - } - - WrappingNode.prototype = Node.prototype = { - - processComment: function () { - var lastChild, - innerComments, - leadingComments, - trailingComments, - bottomRight = extra.bottomRightStack, - i, - comment, - last = bottomRight[bottomRight.length - 1]; - - if (this.type === Syntax.Program) { - if (this.body.length > 0) { - return; - } - } - /** - * patch innnerComments for properties empty block - * `function a() {/** comments **\/}` - */ - - if (this.type === Syntax.BlockStatement && this.body.length === 0) { - innerComments = []; - for (i = extra.leadingComments.length - 1; i >= 0; --i) { - comment = extra.leadingComments[i]; - if (this.range[1] >= comment.range[1]) { - innerComments.unshift(comment); - extra.leadingComments.splice(i, 1); - extra.trailingComments.splice(i, 1); - } - } - if (innerComments.length) { - this.innerComments = innerComments; - //bottomRight.push(this); - return; - } - } - - if (extra.trailingComments.length > 0) { - trailingComments = []; - for (i = extra.trailingComments.length - 1; i >= 0; --i) { - comment = extra.trailingComments[i]; - if (comment.range[0] >= this.range[1]) { - trailingComments.unshift(comment); - extra.trailingComments.splice(i, 1); - } - } - extra.trailingComments = []; - } else { - if (last && last.trailingComments && last.trailingComments[0].range[0] >= this.range[1]) { - trailingComments = last.trailingComments; - delete last.trailingComments; - } - } - - // Eating the stack. - while (last && last.range[0] >= this.range[0]) { - lastChild = bottomRight.pop(); - last = bottomRight[bottomRight.length - 1]; - } - - if (lastChild) { - if (lastChild.leadingComments) { - leadingComments = []; - for (i = lastChild.leadingComments.length - 1; i >= 0; --i) { - comment = lastChild.leadingComments[i]; - if (comment.range[1] <= this.range[0]) { - leadingComments.unshift(comment); - lastChild.leadingComments.splice(i, 1); - } - } - - if (!lastChild.leadingComments.length) { - lastChild.leadingComments = undefined; - } - } - } else if (extra.leadingComments.length > 0) { - leadingComments = []; - for (i = extra.leadingComments.length - 1; i >= 0; --i) { - comment = extra.leadingComments[i]; - if (comment.range[1] <= this.range[0]) { - leadingComments.unshift(comment); - extra.leadingComments.splice(i, 1); - } - } - } - - - if (leadingComments && leadingComments.length > 0) { - this.leadingComments = leadingComments; - } - if (trailingComments && trailingComments.length > 0) { - this.trailingComments = trailingComments; - } - - bottomRight.push(this); - }, - - finish: function () { - if (extra.range) { - this.range[1] = lastIndex; - } - if (extra.loc) { - this.loc.end = { - line: lastLineNumber, - column: lastIndex - lastLineStart - }; - if (extra.source) { - this.loc.source = extra.source; - } - } - - if (extra.attachComment) { - this.processComment(); - } - }, - - finishArrayExpression: function (elements) { - this.type = Syntax.ArrayExpression; - this.elements = elements; - this.finish(); - return this; - }, - - finishArrayPattern: function (elements) { - this.type = Syntax.ArrayPattern; - this.elements = elements; - this.finish(); - return this; - }, - - finishArrowFunctionExpression: function (params, defaults, body, expression) { - this.type = Syntax.ArrowFunctionExpression; - this.id = null; - this.params = params; - this.defaults = defaults; - this.body = body; - this.generator = false; - this.expression = expression; - this.finish(); - return this; - }, - - finishAssignmentExpression: function (operator, left, right) { - this.type = Syntax.AssignmentExpression; - this.operator = operator; - this.left = left; - this.right = right; - this.finish(); - return this; - }, - - finishAssignmentPattern: function (left, right) { - this.type = Syntax.AssignmentPattern; - this.left = left; - this.right = right; - this.finish(); - return this; - }, - - finishBinaryExpression: function (operator, left, right) { - this.type = (operator === '||' || operator === '&&') ? Syntax.LogicalExpression : Syntax.BinaryExpression; - this.operator = operator; - this.left = left; - this.right = right; - this.finish(); - return this; - }, - - finishBlockStatement: function (body) { - this.type = Syntax.BlockStatement; - this.body = body; - this.finish(); - return this; - }, - - finishBreakStatement: function (label) { - this.type = Syntax.BreakStatement; - this.label = label; - this.finish(); - return this; - }, - - finishCallExpression: function (callee, args) { - this.type = Syntax.CallExpression; - this.callee = callee; - this.arguments = args; - this.finish(); - return this; - }, - - finishCatchClause: function (param, body) { - this.type = Syntax.CatchClause; - this.param = param; - this.body = body; - this.finish(); - return this; - }, - - finishClassBody: function (body) { - this.type = Syntax.ClassBody; - this.body = body; - this.finish(); - return this; - }, - - finishClassDeclaration: function (id, superClass, body) { - this.type = Syntax.ClassDeclaration; - this.id = id; - this.superClass = superClass; - this.body = body; - this.finish(); - return this; - }, - - finishClassExpression: function (id, superClass, body) { - this.type = Syntax.ClassExpression; - this.id = id; - this.superClass = superClass; - this.body = body; - this.finish(); - return this; - }, - - finishConditionalExpression: function (test, consequent, alternate) { - this.type = Syntax.ConditionalExpression; - this.test = test; - this.consequent = consequent; - this.alternate = alternate; - this.finish(); - return this; - }, - - finishContinueStatement: function (label) { - this.type = Syntax.ContinueStatement; - this.label = label; - this.finish(); - return this; - }, - - finishDebuggerStatement: function () { - this.type = Syntax.DebuggerStatement; - this.finish(); - return this; - }, - - finishDoWhileStatement: function (body, test) { - this.type = Syntax.DoWhileStatement; - this.body = body; - this.test = test; - this.finish(); - return this; - }, - - finishEmptyStatement: function () { - this.type = Syntax.EmptyStatement; - this.finish(); - return this; - }, - - finishExpressionStatement: function (expression) { - this.type = Syntax.ExpressionStatement; - this.expression = expression; - this.finish(); - return this; - }, - - finishForStatement: function (init, test, update, body) { - this.type = Syntax.ForStatement; - this.init = init; - this.test = test; - this.update = update; - this.body = body; - this.finish(); - return this; - }, - - finishForOfStatement: function (left, right, body) { - this.type = Syntax.ForOfStatement; - this.left = left; - this.right = right; - this.body = body; - this.finish(); - return this; - }, - - finishForInStatement: function (left, right, body) { - this.type = Syntax.ForInStatement; - this.left = left; - this.right = right; - this.body = body; - this.each = false; - this.finish(); - return this; - }, - - finishFunctionDeclaration: function (id, params, defaults, body, generator) { - this.type = Syntax.FunctionDeclaration; - this.id = id; - this.params = params; - this.defaults = defaults; - this.body = body; - this.generator = generator; - this.expression = false; - this.finish(); - return this; - }, - - finishFunctionExpression: function (id, params, defaults, body, generator) { - this.type = Syntax.FunctionExpression; - this.id = id; - this.params = params; - this.defaults = defaults; - this.body = body; - this.generator = generator; - this.expression = false; - this.finish(); - return this; - }, - - finishIdentifier: function (name) { - this.type = Syntax.Identifier; - this.name = name; - this.finish(); - return this; - }, - - finishIfStatement: function (test, consequent, alternate) { - this.type = Syntax.IfStatement; - this.test = test; - this.consequent = consequent; - this.alternate = alternate; - this.finish(); - return this; - }, - - finishLabeledStatement: function (label, body) { - this.type = Syntax.LabeledStatement; - this.label = label; - this.body = body; - this.finish(); - return this; - }, - - finishLiteral: function (token) { - this.type = Syntax.Literal; - this.value = token.value; - this.raw = source.slice(token.start, token.end); - if (token.regex) { - this.regex = token.regex; - } - this.finish(); - return this; - }, - - finishMemberExpression: function (accessor, object, property) { - this.type = Syntax.MemberExpression; - this.computed = accessor === '['; - this.object = object; - this.property = property; - this.finish(); - return this; - }, - - finishMetaProperty: function (meta, property) { - this.type = Syntax.MetaProperty; - this.meta = meta; - this.property = property; - this.finish(); - return this; - }, - - finishNewExpression: function (callee, args) { - this.type = Syntax.NewExpression; - this.callee = callee; - this.arguments = args; - this.finish(); - return this; - }, - - finishObjectExpression: function (properties) { - this.type = Syntax.ObjectExpression; - this.properties = properties; - this.finish(); - return this; - }, - - finishObjectPattern: function (properties) { - this.type = Syntax.ObjectPattern; - this.properties = properties; - this.finish(); - return this; - }, - - finishPostfixExpression: function (operator, argument) { - this.type = Syntax.UpdateExpression; - this.operator = operator; - this.argument = argument; - this.prefix = false; - this.finish(); - return this; - }, - - finishProgram: function (body, sourceType) { - this.type = Syntax.Program; - this.body = body; - this.sourceType = sourceType; - this.finish(); - return this; - }, - - finishProperty: function (kind, key, computed, value, method, shorthand) { - this.type = Syntax.Property; - this.key = key; - this.computed = computed; - this.value = value; - this.kind = kind; - this.method = method; - this.shorthand = shorthand; - this.finish(); - return this; - }, - - finishRestElement: function (argument) { - this.type = Syntax.RestElement; - this.argument = argument; - this.finish(); - return this; - }, - - finishReturnStatement: function (argument) { - this.type = Syntax.ReturnStatement; - this.argument = argument; - this.finish(); - return this; - }, - - finishSequenceExpression: function (expressions) { - this.type = Syntax.SequenceExpression; - this.expressions = expressions; - this.finish(); - return this; - }, - - finishSpreadElement: function (argument) { - this.type = Syntax.SpreadElement; - this.argument = argument; - this.finish(); - return this; - }, - - finishSwitchCase: function (test, consequent) { - this.type = Syntax.SwitchCase; - this.test = test; - this.consequent = consequent; - this.finish(); - return this; - }, - - finishSuper: function () { - this.type = Syntax.Super; - this.finish(); - return this; - }, - - finishSwitchStatement: function (discriminant, cases) { - this.type = Syntax.SwitchStatement; - this.discriminant = discriminant; - this.cases = cases; - this.finish(); - return this; - }, - - finishTaggedTemplateExpression: function (tag, quasi) { - this.type = Syntax.TaggedTemplateExpression; - this.tag = tag; - this.quasi = quasi; - this.finish(); - return this; - }, - - finishTemplateElement: function (value, tail) { - this.type = Syntax.TemplateElement; - this.value = value; - this.tail = tail; - this.finish(); - return this; - }, - - finishTemplateLiteral: function (quasis, expressions) { - this.type = Syntax.TemplateLiteral; - this.quasis = quasis; - this.expressions = expressions; - this.finish(); - return this; - }, - - finishThisExpression: function () { - this.type = Syntax.ThisExpression; - this.finish(); - return this; - }, - - finishThrowStatement: function (argument) { - this.type = Syntax.ThrowStatement; - this.argument = argument; - this.finish(); - return this; - }, - - finishTryStatement: function (block, handler, finalizer) { - this.type = Syntax.TryStatement; - this.block = block; - this.guardedHandlers = []; - this.handlers = handler ? [handler] : []; - this.handler = handler; - this.finalizer = finalizer; - this.finish(); - return this; - }, - - finishUnaryExpression: function (operator, argument) { - this.type = (operator === '++' || operator === '--') ? Syntax.UpdateExpression : Syntax.UnaryExpression; - this.operator = operator; - this.argument = argument; - this.prefix = true; - this.finish(); - return this; - }, - - finishVariableDeclaration: function (declarations) { - this.type = Syntax.VariableDeclaration; - this.declarations = declarations; - this.kind = 'var'; - this.finish(); - return this; - }, - - finishLexicalDeclaration: function (declarations, kind) { - this.type = Syntax.VariableDeclaration; - this.declarations = declarations; - this.kind = kind; - this.finish(); - return this; - }, - - finishVariableDeclarator: function (id, init) { - this.type = Syntax.VariableDeclarator; - this.id = id; - this.init = init; - this.finish(); - return this; - }, - - finishWhileStatement: function (test, body) { - this.type = Syntax.WhileStatement; - this.test = test; - this.body = body; - this.finish(); - return this; - }, - - finishWithStatement: function (object, body) { - this.type = Syntax.WithStatement; - this.object = object; - this.body = body; - this.finish(); - return this; - }, - - finishExportSpecifier: function (local, exported) { - this.type = Syntax.ExportSpecifier; - this.exported = exported || local; - this.local = local; - this.finish(); - return this; - }, - - finishImportDefaultSpecifier: function (local) { - this.type = Syntax.ImportDefaultSpecifier; - this.local = local; - this.finish(); - return this; - }, - - finishImportNamespaceSpecifier: function (local) { - this.type = Syntax.ImportNamespaceSpecifier; - this.local = local; - this.finish(); - return this; - }, - - finishExportNamedDeclaration: function (declaration, specifiers, src) { - this.type = Syntax.ExportNamedDeclaration; - this.declaration = declaration; - this.specifiers = specifiers; - this.source = src; - this.finish(); - return this; - }, - - finishExportDefaultDeclaration: function (declaration) { - this.type = Syntax.ExportDefaultDeclaration; - this.declaration = declaration; - this.finish(); - return this; - }, - - finishExportAllDeclaration: function (src) { - this.type = Syntax.ExportAllDeclaration; - this.source = src; - this.finish(); - return this; - }, - - finishImportSpecifier: function (local, imported) { - this.type = Syntax.ImportSpecifier; - this.local = local || imported; - this.imported = imported; - this.finish(); - return this; - }, - - finishImportDeclaration: function (specifiers, src) { - this.type = Syntax.ImportDeclaration; - this.specifiers = specifiers; - this.source = src; - this.finish(); - return this; - }, - - finishYieldExpression: function (argument, delegate) { - this.type = Syntax.YieldExpression; - this.argument = argument; - this.delegate = delegate; - this.finish(); - return this; - } - }; - - - function recordError(error) { - var e, existing; - - for (e = 0; e < extra.errors.length; e++) { - existing = extra.errors[e]; - // Prevent duplicated error. - /* istanbul ignore next */ - if (existing.index === error.index && existing.message === error.message) { - return; - } - } - - extra.errors.push(error); - } - - function constructError(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; - } - } - - function createError(line, pos, description) { - var msg, column, error; - - msg = 'Line ' + line + ': ' + description; - column = pos - (scanning ? lineStart : lastLineStart) + 1; - error = constructError(msg, column); - error.lineNumber = line; - error.description = description; - error.index = pos; - return error; - } - - // Throw an exception - - function throwError(messageFormat) { - var args, msg; - - args = Array.prototype.slice.call(arguments, 1); - msg = messageFormat.replace(/%(\d)/g, - function (whole, idx) { - assert(idx < args.length, 'Message reference must be in range'); - return args[idx]; - } - ); - - throw createError(lastLineNumber, lastIndex, msg); - } - - function tolerateError(messageFormat) { - var args, msg, error; - - args = Array.prototype.slice.call(arguments, 1); - /* istanbul ignore next */ - msg = messageFormat.replace(/%(\d)/g, - function (whole, idx) { - assert(idx < args.length, 'Message reference must be in range'); - return args[idx]; - } - ); - - error = createError(lineNumber, lastIndex, msg); - if (extra.errors) { - recordError(error); - } else { - throw error; - } - } - - // Throw an exception because of the token. - - function unexpectedTokenError(token, message) { - var value, msg = message || Messages.UnexpectedToken; - - if (token) { - if (!message) { - msg = (token.type === Token.EOF) ? Messages.UnexpectedEOS : - (token.type === Token.Identifier) ? Messages.UnexpectedIdentifier : - (token.type === Token.NumericLiteral) ? Messages.UnexpectedNumber : - (token.type === Token.StringLiteral) ? Messages.UnexpectedString : - (token.type === Token.Template) ? Messages.UnexpectedTemplate : - Messages.UnexpectedToken; - - if (token.type === Token.Keyword) { - if (isFutureReservedWord(token.value)) { - msg = Messages.UnexpectedReserved; - } else if (strict && isStrictModeReservedWord(token.value)) { - msg = Messages.StrictReservedWord; - } - } - } - - value = (token.type === Token.Template) ? token.value.raw : token.value; - } else { - value = 'ILLEGAL'; - } - - msg = msg.replace('%0', value); - - return (token && typeof token.lineNumber === 'number') ? - createError(token.lineNumber, token.start, msg) : - createError(scanning ? lineNumber : lastLineNumber, scanning ? index : lastIndex, msg); - } - - function throwUnexpectedToken(token, message) { - throw unexpectedTokenError(token, message); - } - - function tolerateUnexpectedToken(token, message) { - var error = unexpectedTokenError(token, message); - if (extra.errors) { - recordError(error); - } else { - throw error; - } - } - - // Expect the next token to match the specified punctuator. - // If not, an exception will be thrown. - - function expect(value) { - var token = lex(); - if (token.type !== Token.Punctuator || token.value !== value) { - throwUnexpectedToken(token); - } - } - - /** - * @name expectCommaSeparator - * @description Quietly expect a comma when in tolerant mode, otherwise delegates - * to expect(value) - * @since 2.0 - */ - function expectCommaSeparator() { - var token; - - if (extra.errors) { - token = lookahead; - if (token.type === Token.Punctuator && token.value === ',') { - lex(); - } else if (token.type === Token.Punctuator && token.value === ';') { - lex(); - tolerateUnexpectedToken(token); - } else { - tolerateUnexpectedToken(token, Messages.UnexpectedToken); - } - } else { - expect(','); - } - } - - // Expect the next token to match the specified keyword. - // If not, an exception will be thrown. - - function expectKeyword(keyword) { - var token = lex(); - if (token.type !== Token.Keyword || token.value !== keyword) { - throwUnexpectedToken(token); - } - } - - // Return true if the next token matches the specified punctuator. - - function match(value) { - return lookahead.type === Token.Punctuator && lookahead.value === value; - } - - // Return true if the next token matches the specified keyword - - function matchKeyword(keyword) { - return lookahead.type === Token.Keyword && 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) - - function matchContextualKeyword(keyword) { - return lookahead.type === Token.Identifier && lookahead.value === keyword; - } - - // Return true if the next token is an assignment operator - - function matchAssign() { - var op; - - if (lookahead.type !== Token.Punctuator) { - return false; - } - op = lookahead.value; - return op === '=' || - op === '*=' || - op === '/=' || - op === '%=' || - op === '+=' || - op === '-=' || - op === '<<=' || - op === '>>=' || - op === '>>>=' || - op === '&=' || - op === '^=' || - op === '|='; - } - - function consumeSemicolon() { - // Catch the very common case first: immediately a semicolon (U+003B). - if (source.charCodeAt(startIndex) === 0x3B || match(';')) { - lex(); - return; - } - - if (hasLineTerminator) { - return; - } - - // FIXME(ikarienator): this is seemingly an issue in the previous location info convention. - lastIndex = startIndex; - lastLineNumber = startLineNumber; - lastLineStart = startLineStart; - - if (lookahead.type !== Token.EOF && !match('}')) { - throwUnexpectedToken(lookahead); - } - } - - // 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. - function isolateCoverGrammar(parser) { - var oldIsBindingElement = isBindingElement, - oldIsAssignmentTarget = isAssignmentTarget, - oldFirstCoverInitializedNameError = firstCoverInitializedNameError, - result; - isBindingElement = true; - isAssignmentTarget = true; - firstCoverInitializedNameError = null; - result = parser(); - if (firstCoverInitializedNameError !== null) { - throwUnexpectedToken(firstCoverInitializedNameError); - } - isBindingElement = oldIsBindingElement; - isAssignmentTarget = oldIsAssignmentTarget; - firstCoverInitializedNameError = oldFirstCoverInitializedNameError; - return result; - } - - function inheritCoverGrammar(parser) { - var oldIsBindingElement = isBindingElement, - oldIsAssignmentTarget = isAssignmentTarget, - oldFirstCoverInitializedNameError = firstCoverInitializedNameError, - result; - isBindingElement = true; - isAssignmentTarget = true; - firstCoverInitializedNameError = null; - result = parser(); - isBindingElement = isBindingElement && oldIsBindingElement; - isAssignmentTarget = isAssignmentTarget && oldIsAssignmentTarget; - firstCoverInitializedNameError = oldFirstCoverInitializedNameError || firstCoverInitializedNameError; - return result; - } - - // ECMA-262 13.3.3 Destructuring Binding Patterns - - function parseArrayPattern(params, kind) { - var node = new Node(), elements = [], rest, restNode; - expect('['); - - while (!match(']')) { - if (match(',')) { - lex(); - elements.push(null); - } else { - if (match('...')) { - restNode = new Node(); - lex(); - params.push(lookahead); - rest = parseVariableIdentifier(kind); - elements.push(restNode.finishRestElement(rest)); - break; - } else { - elements.push(parsePatternWithDefault(params, kind)); - } - if (!match(']')) { - expect(','); - } - } - - } - - expect(']'); - - return node.finishArrayPattern(elements); - } - - function parsePropertyPattern(params, kind) { - var node = new Node(), key, keyToken, computed = match('['), init; - if (lookahead.type === Token.Identifier) { - keyToken = lookahead; - key = parseVariableIdentifier(); - if (match('=')) { - params.push(keyToken); - lex(); - init = parseAssignmentExpression(); - - return node.finishProperty( - 'init', key, false, - new WrappingNode(keyToken).finishAssignmentPattern(key, init), false, true); - } else if (!match(':')) { - params.push(keyToken); - return node.finishProperty('init', key, false, key, false, true); - } - } else { - key = parseObjectPropertyKey(); - } - expect(':'); - init = parsePatternWithDefault(params, kind); - return node.finishProperty('init', key, computed, init, false, false); - } - - function parseObjectPattern(params, kind) { - var node = new Node(), properties = []; - - expect('{'); - - while (!match('}')) { - properties.push(parsePropertyPattern(params, kind)); - if (!match('}')) { - expect(','); - } - } - - lex(); - - return node.finishObjectPattern(properties); - } - - function parsePattern(params, kind) { - if (match('[')) { - return parseArrayPattern(params, kind); - } else if (match('{')) { - return parseObjectPattern(params, kind); - } else if (matchKeyword('let')) { - if (kind === 'const' || kind === 'let') { - tolerateUnexpectedToken(lookahead, Messages.UnexpectedToken); - } - } - - params.push(lookahead); - return parseVariableIdentifier(kind); - } - - function parsePatternWithDefault(params, kind) { - var startToken = lookahead, pattern, previousAllowYield, right; - pattern = parsePattern(params, kind); - if (match('=')) { - lex(); - previousAllowYield = state.allowYield; - state.allowYield = true; - right = isolateCoverGrammar(parseAssignmentExpression); - state.allowYield = previousAllowYield; - pattern = new WrappingNode(startToken).finishAssignmentPattern(pattern, right); - } - return pattern; - } - - // ECMA-262 12.2.5 Array Initializer - - function parseArrayInitializer() { - var elements = [], node = new Node(), restSpread; - - expect('['); - - while (!match(']')) { - if (match(',')) { - lex(); - elements.push(null); - } else if (match('...')) { - restSpread = new Node(); - lex(); - restSpread.finishSpreadElement(inheritCoverGrammar(parseAssignmentExpression)); - - if (!match(']')) { - isAssignmentTarget = isBindingElement = false; - expect(','); - } - elements.push(restSpread); - } else { - elements.push(inheritCoverGrammar(parseAssignmentExpression)); - - if (!match(']')) { - expect(','); - } - } - } - - lex(); - - return node.finishArrayExpression(elements); - } - - // ECMA-262 12.2.6 Object Initializer - - function parsePropertyFunction(node, paramInfo, isGenerator) { - var previousStrict, body; - - isAssignmentTarget = isBindingElement = false; - - previousStrict = strict; - body = isolateCoverGrammar(parseFunctionSourceElements); - - if (strict && paramInfo.firstRestricted) { - tolerateUnexpectedToken(paramInfo.firstRestricted, paramInfo.message); - } - if (strict && paramInfo.stricted) { - tolerateUnexpectedToken(paramInfo.stricted, paramInfo.message); - } - - strict = previousStrict; - return node.finishFunctionExpression(null, paramInfo.params, paramInfo.defaults, body, isGenerator); - } - - function parsePropertyMethodFunction() { - var params, method, node = new Node(), - previousAllowYield = state.allowYield; - - state.allowYield = false; - params = parseParams(); - state.allowYield = previousAllowYield; - - state.allowYield = false; - method = parsePropertyFunction(node, params, false); - state.allowYield = previousAllowYield; - - return method; - } - - function parseObjectPropertyKey() { - var token, node = new Node(), expr; - - token = lex(); - - // Note: This function is called only from parseObjectProperty(), where - // EOF and Punctuator tokens are already filtered out. - - switch (token.type) { - case Token.StringLiteral: - case Token.NumericLiteral: - if (strict && token.octal) { - tolerateUnexpectedToken(token, Messages.StrictOctalLiteral); - } - return node.finishLiteral(token); - case Token.Identifier: - case Token.BooleanLiteral: - case Token.NullLiteral: - case Token.Keyword: - return node.finishIdentifier(token.value); - case Token.Punctuator: - if (token.value === '[') { - expr = isolateCoverGrammar(parseAssignmentExpression); - expect(']'); - return expr; - } - break; - } - throwUnexpectedToken(token); - } - - function lookaheadPropertyName() { - switch (lookahead.type) { - case Token.Identifier: - case Token.StringLiteral: - case Token.BooleanLiteral: - case Token.NullLiteral: - case Token.NumericLiteral: - case Token.Keyword: - return true; - case Token.Punctuator: - return lookahead.value === '['; - } - return false; - } - - // This function is to try to parse a MethodDefinition as defined in 14.3. But in the case of object literals, - // it might be called at a position where there is in fact a short hand identifier pattern or a data property. - // This can only be determined after we consumed up to the left parentheses. - // - // In order to avoid back tracking, it returns `null` if the position is not a MethodDefinition and the caller - // is responsible to visit other options. - function tryParseMethodDefinition(token, key, computed, node) { - var value, options, methodNode, params, - previousAllowYield = state.allowYield; - - if (token.type === Token.Identifier) { - // check for `get` and `set`; - - if (token.value === 'get' && lookaheadPropertyName()) { - computed = match('['); - key = parseObjectPropertyKey(); - methodNode = new Node(); - expect('('); - expect(')'); - - state.allowYield = false; - value = parsePropertyFunction(methodNode, { - params: [], - defaults: [], - stricted: null, - firstRestricted: null, - message: null - }, false); - state.allowYield = previousAllowYield; - - return node.finishProperty('get', key, computed, value, false, false); - } else if (token.value === 'set' && lookaheadPropertyName()) { - computed = match('['); - key = parseObjectPropertyKey(); - methodNode = new Node(); - expect('('); - - options = { - params: [], - defaultCount: 0, - defaults: [], - firstRestricted: null, - paramSet: {} - }; - if (match(')')) { - tolerateUnexpectedToken(lookahead); - } else { - state.allowYield = false; - parseParam(options); - state.allowYield = previousAllowYield; - if (options.defaultCount === 0) { - options.defaults = []; - } - } - expect(')'); - - state.allowYield = false; - value = parsePropertyFunction(methodNode, options, false); - state.allowYield = previousAllowYield; - - return node.finishProperty('set', key, computed, value, false, false); - } - } else if (token.type === Token.Punctuator && token.value === '*' && lookaheadPropertyName()) { - computed = match('['); - key = parseObjectPropertyKey(); - methodNode = new Node(); - - state.allowYield = true; - params = parseParams(); - state.allowYield = previousAllowYield; - - state.allowYield = false; - value = parsePropertyFunction(methodNode, params, true); - state.allowYield = previousAllowYield; - - return node.finishProperty('init', key, computed, value, true, false); - } - - if (key && match('(')) { - value = parsePropertyMethodFunction(); - return node.finishProperty('init', key, computed, value, true, false); - } - - // Not a MethodDefinition. - return null; - } - - function parseObjectProperty(hasProto) { - var token = lookahead, node = new Node(), computed, key, maybeMethod, proto, value; - - computed = match('['); - if (match('*')) { - lex(); - } else { - key = parseObjectPropertyKey(); - } - maybeMethod = tryParseMethodDefinition(token, key, computed, node); - if (maybeMethod) { - return maybeMethod; - } - - if (!key) { - throwUnexpectedToken(lookahead); - } - - // Check for duplicated __proto__ - if (!computed) { - proto = (key.type === Syntax.Identifier && key.name === '__proto__') || - (key.type === Syntax.Literal && key.value === '__proto__'); - if (hasProto.value && proto) { - tolerateError(Messages.DuplicateProtoProperty); - } - hasProto.value |= proto; - } - - if (match(':')) { - lex(); - value = inheritCoverGrammar(parseAssignmentExpression); - return node.finishProperty('init', key, computed, value, false, false); - } - - if (token.type === Token.Identifier) { - if (match('=')) { - firstCoverInitializedNameError = lookahead; - lex(); - value = isolateCoverGrammar(parseAssignmentExpression); - return node.finishProperty('init', key, computed, - new WrappingNode(token).finishAssignmentPattern(key, value), false, true); - } - return node.finishProperty('init', key, computed, key, false, true); - } - - throwUnexpectedToken(lookahead); - } - - function parseObjectInitializer() { - var properties = [], hasProto = {value: false}, node = new Node(); - - expect('{'); - - while (!match('}')) { - properties.push(parseObjectProperty(hasProto)); - - if (!match('}')) { - expectCommaSeparator(); - } - } - - expect('}'); - - return node.finishObjectExpression(properties); - } - - function reinterpretExpressionAsPattern(expr) { - var i; - switch (expr.type) { - case Syntax.Identifier: - case Syntax.MemberExpression: - case Syntax.RestElement: - case Syntax.AssignmentPattern: - break; - case Syntax.SpreadElement: - expr.type = Syntax.RestElement; - reinterpretExpressionAsPattern(expr.argument); - break; - case Syntax.ArrayExpression: - expr.type = Syntax.ArrayPattern; - for (i = 0; i < expr.elements.length; i++) { - if (expr.elements[i] !== null) { - reinterpretExpressionAsPattern(expr.elements[i]); - } - } - break; - case Syntax.ObjectExpression: - expr.type = Syntax.ObjectPattern; - for (i = 0; i < expr.properties.length; i++) { - reinterpretExpressionAsPattern(expr.properties[i].value); - } - break; - case Syntax.AssignmentExpression: - expr.type = Syntax.AssignmentPattern; - reinterpretExpressionAsPattern(expr.left); - break; - default: - // Allow other node type for tolerant parsing. - break; - } - } - - // ECMA-262 12.2.9 Template Literals - - function parseTemplateElement(option) { - var node, token; - - if (lookahead.type !== Token.Template || (option.head && !lookahead.head)) { - throwUnexpectedToken(); - } - - node = new Node(); - token = lex(); - - return node.finishTemplateElement({ raw: token.value.raw, cooked: token.value.cooked }, token.tail); - } - - function parseTemplateLiteral() { - var quasi, quasis, expressions, node = new Node(); - - quasi = parseTemplateElement({ head: true }); - quasis = [quasi]; - expressions = []; - - while (!quasi.tail) { - expressions.push(parseExpression()); - quasi = parseTemplateElement({ head: false }); - quasis.push(quasi); - } - - return node.finishTemplateLiteral(quasis, expressions); - } - - // ECMA-262 12.2.10 The Grouping Operator - - function parseGroupExpression() { - var expr, expressions, startToken, i, params = []; - - expect('('); - - if (match(')')) { - lex(); - if (!match('=>')) { - expect('=>'); - } - return { - type: PlaceHolders.ArrowParameterPlaceHolder, - params: [], - rawParams: [] - }; - } - - startToken = lookahead; - if (match('...')) { - expr = parseRestElement(params); - expect(')'); - if (!match('=>')) { - expect('=>'); - } - return { - type: PlaceHolders.ArrowParameterPlaceHolder, - params: [expr] - }; - } - - isBindingElement = true; - expr = inheritCoverGrammar(parseAssignmentExpression); - - if (match(',')) { - isAssignmentTarget = false; - expressions = [expr]; - - while (startIndex < length) { - if (!match(',')) { - break; - } - lex(); - - if (match('...')) { - if (!isBindingElement) { - throwUnexpectedToken(lookahead); - } - expressions.push(parseRestElement(params)); - expect(')'); - if (!match('=>')) { - expect('=>'); - } - isBindingElement = false; - for (i = 0; i < expressions.length; i++) { - reinterpretExpressionAsPattern(expressions[i]); - } - return { - type: PlaceHolders.ArrowParameterPlaceHolder, - params: expressions - }; - } - - expressions.push(inheritCoverGrammar(parseAssignmentExpression)); - } - - expr = new WrappingNode(startToken).finishSequenceExpression(expressions); - } - - - expect(')'); - - if (match('=>')) { - if (expr.type === Syntax.Identifier && expr.name === 'yield') { - return { - type: PlaceHolders.ArrowParameterPlaceHolder, - params: [expr] - }; - } - - if (!isBindingElement) { - throwUnexpectedToken(lookahead); - } - - if (expr.type === Syntax.SequenceExpression) { - for (i = 0; i < expr.expressions.length; i++) { - reinterpretExpressionAsPattern(expr.expressions[i]); - } - } else { - reinterpretExpressionAsPattern(expr); - } - - expr = { - type: PlaceHolders.ArrowParameterPlaceHolder, - params: expr.type === Syntax.SequenceExpression ? expr.expressions : [expr] - }; - } - isBindingElement = false; - return expr; - } - - - // ECMA-262 12.2 Primary Expressions - - function parsePrimaryExpression() { - var type, token, expr, node; - - if (match('(')) { - isBindingElement = false; - return inheritCoverGrammar(parseGroupExpression); - } - - if (match('[')) { - return inheritCoverGrammar(parseArrayInitializer); - } - - if (match('{')) { - return inheritCoverGrammar(parseObjectInitializer); - } - - type = lookahead.type; - node = new Node(); - - if (type === Token.Identifier) { - if (state.sourceType === 'module' && lookahead.value === 'await') { - tolerateUnexpectedToken(lookahead); - } - expr = node.finishIdentifier(lex().value); - } else if (type === Token.StringLiteral || type === Token.NumericLiteral) { - isAssignmentTarget = isBindingElement = false; - if (strict && lookahead.octal) { - tolerateUnexpectedToken(lookahead, Messages.StrictOctalLiteral); - } - expr = node.finishLiteral(lex()); - } else if (type === Token.Keyword) { - if (!strict && state.allowYield && matchKeyword('yield')) { - return parseNonComputedProperty(); - } - if (!strict && matchKeyword('let')) { - return node.finishIdentifier(lex().value); - } - isAssignmentTarget = isBindingElement = false; - if (matchKeyword('function')) { - return parseFunctionExpression(); - } - if (matchKeyword('this')) { - lex(); - return node.finishThisExpression(); - } - if (matchKeyword('class')) { - return parseClassExpression(); - } - throwUnexpectedToken(lex()); - } else if (type === Token.BooleanLiteral) { - isAssignmentTarget = isBindingElement = false; - token = lex(); - token.value = (token.value === 'true'); - expr = node.finishLiteral(token); - } else if (type === Token.NullLiteral) { - isAssignmentTarget = isBindingElement = false; - token = lex(); - token.value = null; - expr = node.finishLiteral(token); - } else if (match('/') || match('/=')) { - isAssignmentTarget = isBindingElement = false; - index = startIndex; - - if (typeof extra.tokens !== 'undefined') { - token = collectRegex(); - } else { - token = scanRegExp(); - } - lex(); - expr = node.finishLiteral(token); - } else if (type === Token.Template) { - expr = parseTemplateLiteral(); - } else { - throwUnexpectedToken(lex()); - } - - return expr; - } - - // ECMA-262 12.3 Left-Hand-Side Expressions - - function parseArguments() { - var args = [], expr; - - expect('('); - - if (!match(')')) { - while (startIndex < length) { - if (match('...')) { - expr = new Node(); - lex(); - expr.finishSpreadElement(isolateCoverGrammar(parseAssignmentExpression)); - } else { - expr = isolateCoverGrammar(parseAssignmentExpression); - } - args.push(expr); - if (match(')')) { - break; - } - expectCommaSeparator(); - } - } - - expect(')'); - - return args; - } - - function parseNonComputedProperty() { - var token, node = new Node(); - - token = lex(); - - if (!isIdentifierName(token)) { - throwUnexpectedToken(token); - } - - return node.finishIdentifier(token.value); - } - - function parseNonComputedMember() { - expect('.'); - - return parseNonComputedProperty(); - } - - function parseComputedMember() { - var expr; - - expect('['); - - expr = isolateCoverGrammar(parseExpression); - - expect(']'); - - return expr; - } - - // ECMA-262 12.3.3 The new Operator - - function parseNewExpression() { - var callee, args, node = new Node(); - - expectKeyword('new'); - - if (match('.')) { - lex(); - if (lookahead.type === Token.Identifier && lookahead.value === 'target') { - if (state.inFunctionBody) { - lex(); - return node.finishMetaProperty('new', 'target'); - } - } - throwUnexpectedToken(lookahead); - } - - callee = isolateCoverGrammar(parseLeftHandSideExpression); - args = match('(') ? parseArguments() : []; - - isAssignmentTarget = isBindingElement = false; - - return node.finishNewExpression(callee, args); - } - - // ECMA-262 12.3.4 Function Calls - - function parseLeftHandSideExpressionAllowCall() { - var quasi, expr, args, property, startToken, previousAllowIn = state.allowIn; - - startToken = lookahead; - state.allowIn = true; - - if (matchKeyword('super') && state.inFunctionBody) { - expr = new Node(); - lex(); - expr = expr.finishSuper(); - if (!match('(') && !match('.') && !match('[')) { - throwUnexpectedToken(lookahead); - } - } else { - expr = inheritCoverGrammar(matchKeyword('new') ? parseNewExpression : parsePrimaryExpression); - } - - for (;;) { - if (match('.')) { - isBindingElement = false; - isAssignmentTarget = true; - property = parseNonComputedMember(); - expr = new WrappingNode(startToken).finishMemberExpression('.', expr, property); - } else if (match('(')) { - isBindingElement = false; - isAssignmentTarget = false; - args = parseArguments(); - expr = new WrappingNode(startToken).finishCallExpression(expr, args); - } else if (match('[')) { - isBindingElement = false; - isAssignmentTarget = true; - property = parseComputedMember(); - expr = new WrappingNode(startToken).finishMemberExpression('[', expr, property); - } else if (lookahead.type === Token.Template && lookahead.head) { - quasi = parseTemplateLiteral(); - expr = new WrappingNode(startToken).finishTaggedTemplateExpression(expr, quasi); - } else { - break; - } - } - state.allowIn = previousAllowIn; - - return expr; - } - - // ECMA-262 12.3 Left-Hand-Side Expressions - - function parseLeftHandSideExpression() { - var quasi, expr, property, startToken; - assert(state.allowIn, 'callee of new expression always allow in keyword.'); - - startToken = lookahead; - - if (matchKeyword('super') && state.inFunctionBody) { - expr = new Node(); - lex(); - expr = expr.finishSuper(); - if (!match('[') && !match('.')) { - throwUnexpectedToken(lookahead); - } - } else { - expr = inheritCoverGrammar(matchKeyword('new') ? parseNewExpression : parsePrimaryExpression); - } - - for (;;) { - if (match('[')) { - isBindingElement = false; - isAssignmentTarget = true; - property = parseComputedMember(); - expr = new WrappingNode(startToken).finishMemberExpression('[', expr, property); - } else if (match('.')) { - isBindingElement = false; - isAssignmentTarget = true; - property = parseNonComputedMember(); - expr = new WrappingNode(startToken).finishMemberExpression('.', expr, property); - } else if (lookahead.type === Token.Template && lookahead.head) { - quasi = parseTemplateLiteral(); - expr = new WrappingNode(startToken).finishTaggedTemplateExpression(expr, quasi); - } else { - break; - } - } - return expr; - } - - // ECMA-262 12.4 Postfix Expressions - - function parsePostfixExpression() { - var expr, token, startToken = lookahead; - - expr = inheritCoverGrammar(parseLeftHandSideExpressionAllowCall); - - if (!hasLineTerminator && lookahead.type === Token.Punctuator) { - if (match('++') || match('--')) { - // ECMA-262 11.3.1, 11.3.2 - if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) { - tolerateError(Messages.StrictLHSPostfix); - } - - if (!isAssignmentTarget) { - tolerateError(Messages.InvalidLHSInAssignment); - } - - isAssignmentTarget = isBindingElement = false; - - token = lex(); - expr = new WrappingNode(startToken).finishPostfixExpression(token.value, expr); - } - } - - return expr; - } - - // ECMA-262 12.5 Unary Operators - - function parseUnaryExpression() { - var token, expr, startToken; - - if (lookahead.type !== Token.Punctuator && lookahead.type !== Token.Keyword) { - expr = parsePostfixExpression(); - } else if (match('++') || match('--')) { - startToken = lookahead; - token = lex(); - expr = inheritCoverGrammar(parseUnaryExpression); - // ECMA-262 11.4.4, 11.4.5 - if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) { - tolerateError(Messages.StrictLHSPrefix); - } - - if (!isAssignmentTarget) { - tolerateError(Messages.InvalidLHSInAssignment); - } - expr = new WrappingNode(startToken).finishUnaryExpression(token.value, expr); - isAssignmentTarget = isBindingElement = false; - } else if (match('+') || match('-') || match('~') || match('!')) { - startToken = lookahead; - token = lex(); - expr = inheritCoverGrammar(parseUnaryExpression); - expr = new WrappingNode(startToken).finishUnaryExpression(token.value, expr); - isAssignmentTarget = isBindingElement = false; - } else if (matchKeyword('delete') || matchKeyword('void') || matchKeyword('typeof')) { - startToken = lookahead; - token = lex(); - expr = inheritCoverGrammar(parseUnaryExpression); - expr = new WrappingNode(startToken).finishUnaryExpression(token.value, expr); - if (strict && expr.operator === 'delete' && expr.argument.type === Syntax.Identifier) { - tolerateError(Messages.StrictDelete); - } - isAssignmentTarget = isBindingElement = false; - } else { - expr = parsePostfixExpression(); - } - - return expr; - } - - function binaryPrecedence(token, allowIn) { - var prec = 0; - - if (token.type !== Token.Punctuator && token.type !== Token.Keyword) { - return 0; - } - - switch (token.value) { - case '||': - prec = 1; - break; - - case '&&': - prec = 2; - break; - - case '|': - prec = 3; - break; - - case '^': - prec = 4; - break; - - case '&': - prec = 5; - break; - - case '==': - case '!=': - case '===': - case '!==': - prec = 6; - break; - - case '<': - case '>': - case '<=': - case '>=': - case 'instanceof': - prec = 7; - break; - - case 'in': - prec = allowIn ? 7 : 0; - break; - - case '<<': - case '>>': - case '>>>': - prec = 8; - break; - - case '+': - case '-': - prec = 9; - break; - - case '*': - case '/': - case '%': - prec = 11; - break; - - default: - break; - } - - return prec; - } - - // ECMA-262 12.6 Multiplicative Operators - // ECMA-262 12.7 Additive Operators - // ECMA-262 12.8 Bitwise Shift Operators - // ECMA-262 12.9 Relational Operators - // ECMA-262 12.10 Equality Operators - // ECMA-262 12.11 Binary Bitwise Operators - // ECMA-262 12.12 Binary Logical Operators - - function parseBinaryExpression() { - var marker, markers, expr, token, prec, stack, right, operator, left, i; - - marker = lookahead; - left = inheritCoverGrammar(parseUnaryExpression); - - token = lookahead; - prec = binaryPrecedence(token, state.allowIn); - if (prec === 0) { - return left; - } - isAssignmentTarget = isBindingElement = false; - token.prec = prec; - lex(); - - markers = [marker, lookahead]; - right = isolateCoverGrammar(parseUnaryExpression); - - stack = [left, token, right]; - - while ((prec = binaryPrecedence(lookahead, state.allowIn)) > 0) { - - // Reduce: make a binary expression from the three topmost entries. - while ((stack.length > 2) && (prec <= stack[stack.length - 2].prec)) { - right = stack.pop(); - operator = stack.pop().value; - left = stack.pop(); - markers.pop(); - expr = new WrappingNode(markers[markers.length - 1]).finishBinaryExpression(operator, left, right); - stack.push(expr); - } - - // Shift. - token = lex(); - token.prec = prec; - stack.push(token); - markers.push(lookahead); - expr = isolateCoverGrammar(parseUnaryExpression); - stack.push(expr); - } - - // Final reduce to clean-up the stack. - i = stack.length - 1; - expr = stack[i]; - markers.pop(); - while (i > 1) { - expr = new WrappingNode(markers.pop()).finishBinaryExpression(stack[i - 1].value, stack[i - 2], expr); - i -= 2; - } - - return expr; - } - - - // ECMA-262 12.13 Conditional Operator - - function parseConditionalExpression() { - var expr, previousAllowIn, consequent, alternate, startToken; - - startToken = lookahead; - - expr = inheritCoverGrammar(parseBinaryExpression); - if (match('?')) { - lex(); - previousAllowIn = state.allowIn; - state.allowIn = true; - consequent = isolateCoverGrammar(parseAssignmentExpression); - state.allowIn = previousAllowIn; - expect(':'); - alternate = isolateCoverGrammar(parseAssignmentExpression); - - expr = new WrappingNode(startToken).finishConditionalExpression(expr, consequent, alternate); - isAssignmentTarget = isBindingElement = false; - } - - return expr; - } - - // ECMA-262 14.2 Arrow Function Definitions - - function parseConciseBody() { - if (match('{')) { - return parseFunctionSourceElements(); - } - return isolateCoverGrammar(parseAssignmentExpression); - } - - function checkPatternParam(options, param) { - var i; - switch (param.type) { - case Syntax.Identifier: - validateParam(options, param, param.name); - break; - case Syntax.RestElement: - checkPatternParam(options, param.argument); - break; - case Syntax.AssignmentPattern: - checkPatternParam(options, param.left); - break; - case Syntax.ArrayPattern: - for (i = 0; i < param.elements.length; i++) { - if (param.elements[i] !== null) { - checkPatternParam(options, param.elements[i]); - } - } - break; - case Syntax.YieldExpression: - break; - default: - assert(param.type === Syntax.ObjectPattern, 'Invalid type'); - for (i = 0; i < param.properties.length; i++) { - checkPatternParam(options, param.properties[i].value); - } - break; - } - } - function reinterpretAsCoverFormalsList(expr) { - var i, len, param, params, defaults, defaultCount, options, token; - - defaults = []; - defaultCount = 0; - params = [expr]; - - switch (expr.type) { - case Syntax.Identifier: - break; - case PlaceHolders.ArrowParameterPlaceHolder: - params = expr.params; - break; - default: - return null; - } - - options = { - paramSet: {} - }; - - for (i = 0, len = params.length; i < len; i += 1) { - param = params[i]; - switch (param.type) { - case Syntax.AssignmentPattern: - params[i] = param.left; - if (param.right.type === Syntax.YieldExpression) { - if (param.right.argument) { - throwUnexpectedToken(lookahead); - } - param.right.type = Syntax.Identifier; - param.right.name = 'yield'; - delete param.right.argument; - delete param.right.delegate; - } - defaults.push(param.right); - ++defaultCount; - checkPatternParam(options, param.left); - break; - default: - checkPatternParam(options, param); - params[i] = param; - defaults.push(null); - break; - } - } - - if (strict || !state.allowYield) { - for (i = 0, len = params.length; i < len; i += 1) { - param = params[i]; - if (param.type === Syntax.YieldExpression) { - throwUnexpectedToken(lookahead); - } - } - } - - if (options.message === Messages.StrictParamDupe) { - token = strict ? options.stricted : options.firstRestricted; - throwUnexpectedToken(token, options.message); - } - - if (defaultCount === 0) { - defaults = []; - } - - return { - params: params, - defaults: defaults, - stricted: options.stricted, - firstRestricted: options.firstRestricted, - message: options.message - }; - } - - function parseArrowFunctionExpression(options, node) { - var previousStrict, previousAllowYield, body; - - if (hasLineTerminator) { - tolerateUnexpectedToken(lookahead); - } - expect('=>'); - - previousStrict = strict; - previousAllowYield = state.allowYield; - state.allowYield = true; - - body = parseConciseBody(); - - if (strict && options.firstRestricted) { - throwUnexpectedToken(options.firstRestricted, options.message); - } - if (strict && options.stricted) { - tolerateUnexpectedToken(options.stricted, options.message); - } - - strict = previousStrict; - state.allowYield = previousAllowYield; - - return node.finishArrowFunctionExpression(options.params, options.defaults, body, body.type !== Syntax.BlockStatement); - } - - // ECMA-262 14.4 Yield expression - - function parseYieldExpression() { - var argument, expr, delegate, previousAllowYield; - - argument = null; - expr = new Node(); - delegate = false; - - expectKeyword('yield'); - - if (!hasLineTerminator) { - previousAllowYield = state.allowYield; - state.allowYield = false; - delegate = match('*'); - if (delegate) { - lex(); - argument = parseAssignmentExpression(); - } else { - if (!match(';') && !match('}') && !match(')') && lookahead.type !== Token.EOF) { - argument = parseAssignmentExpression(); - } - } - state.allowYield = previousAllowYield; - } - - return expr.finishYieldExpression(argument, delegate); - } - - // ECMA-262 12.14 Assignment Operators - - function parseAssignmentExpression() { - var token, expr, right, list, startToken; - - startToken = lookahead; - token = lookahead; - - if (!state.allowYield && matchKeyword('yield')) { - return parseYieldExpression(); - } - - expr = parseConditionalExpression(); - - if (expr.type === PlaceHolders.ArrowParameterPlaceHolder || match('=>')) { - isAssignmentTarget = isBindingElement = false; - list = reinterpretAsCoverFormalsList(expr); - - if (list) { - firstCoverInitializedNameError = null; - return parseArrowFunctionExpression(list, new WrappingNode(startToken)); - } - - return expr; - } - - if (matchAssign()) { - if (!isAssignmentTarget) { - tolerateError(Messages.InvalidLHSInAssignment); - } - - // ECMA-262 12.1.1 - if (strict && expr.type === Syntax.Identifier) { - if (isRestrictedWord(expr.name)) { - tolerateUnexpectedToken(token, Messages.StrictLHSAssignment); - } - if (isStrictModeReservedWord(expr.name)) { - tolerateUnexpectedToken(token, Messages.StrictReservedWord); - } - } - - if (!match('=')) { - isAssignmentTarget = isBindingElement = false; - } else { - reinterpretExpressionAsPattern(expr); - } - - token = lex(); - right = isolateCoverGrammar(parseAssignmentExpression); - expr = new WrappingNode(startToken).finishAssignmentExpression(token.value, expr, right); - firstCoverInitializedNameError = null; - } - - return expr; - } - - // ECMA-262 12.15 Comma Operator - - function parseExpression() { - var expr, startToken = lookahead, expressions; - - expr = isolateCoverGrammar(parseAssignmentExpression); - - if (match(',')) { - expressions = [expr]; - - while (startIndex < length) { - if (!match(',')) { - break; - } - lex(); - expressions.push(isolateCoverGrammar(parseAssignmentExpression)); - } - - expr = new WrappingNode(startToken).finishSequenceExpression(expressions); - } - - return expr; - } - - // ECMA-262 13.2 Block - - function parseStatementListItem() { - if (lookahead.type === Token.Keyword) { - switch (lookahead.value) { - case 'export': - if (state.sourceType !== 'module') { - tolerateUnexpectedToken(lookahead, Messages.IllegalExportDeclaration); - } - return parseExportDeclaration(); - case 'import': - if (state.sourceType !== 'module') { - tolerateUnexpectedToken(lookahead, Messages.IllegalImportDeclaration); - } - return parseImportDeclaration(); - case 'const': - return parseLexicalDeclaration({inFor: false}); - case 'function': - return parseFunctionDeclaration(new Node()); - case 'class': - return parseClassDeclaration(); - } - } - - if (matchKeyword('let') && isLexicalDeclaration()) { - return parseLexicalDeclaration({inFor: false}); - } - - return parseStatement(); - } - - function parseStatementList() { - var list = []; - while (startIndex < length) { - if (match('}')) { - break; - } - list.push(parseStatementListItem()); - } - - return list; - } - - function parseBlock() { - var block, node = new Node(); - - expect('{'); - - block = parseStatementList(); - - expect('}'); - - return node.finishBlockStatement(block); - } - - // ECMA-262 13.3.2 Variable Statement - - function parseVariableIdentifier(kind) { - var token, node = new Node(); - - token = lex(); - - if (token.type === Token.Keyword && token.value === 'yield') { - if (strict) { - tolerateUnexpectedToken(token, Messages.StrictReservedWord); - } if (!state.allowYield) { - throwUnexpectedToken(token); - } - } else if (token.type !== Token.Identifier) { - if (strict && token.type === Token.Keyword && isStrictModeReservedWord(token.value)) { - tolerateUnexpectedToken(token, Messages.StrictReservedWord); - } else { - if (strict || token.value !== 'let' || kind !== 'var') { - throwUnexpectedToken(token); - } - } - } else if (state.sourceType === 'module' && token.type === Token.Identifier && token.value === 'await') { - tolerateUnexpectedToken(token); - } - - return node.finishIdentifier(token.value); - } - - function parseVariableDeclaration(options) { - var init = null, id, node = new Node(), params = []; - - id = parsePattern(params, 'var'); - - // ECMA-262 12.2.1 - if (strict && isRestrictedWord(id.name)) { - tolerateError(Messages.StrictVarName); - } - - if (match('=')) { - lex(); - init = isolateCoverGrammar(parseAssignmentExpression); - } else if (id.type !== Syntax.Identifier && !options.inFor) { - expect('='); - } - - return node.finishVariableDeclarator(id, init); - } - - function parseVariableDeclarationList(options) { - var opt, list; - - opt = { inFor: options.inFor }; - list = [parseVariableDeclaration(opt)]; - - while (match(',')) { - lex(); - list.push(parseVariableDeclaration(opt)); - } - - return list; - } - - function parseVariableStatement(node) { - var declarations; - - expectKeyword('var'); - - declarations = parseVariableDeclarationList({ inFor: false }); - - consumeSemicolon(); - - return node.finishVariableDeclaration(declarations); - } - - // ECMA-262 13.3.1 Let and Const Declarations - - function parseLexicalBinding(kind, options) { - var init = null, id, node = new Node(), params = []; - - id = parsePattern(params, kind); - - // ECMA-262 12.2.1 - if (strict && id.type === Syntax.Identifier && isRestrictedWord(id.name)) { - tolerateError(Messages.StrictVarName); - } - - if (kind === 'const') { - if (!matchKeyword('in') && !matchContextualKeyword('of')) { - expect('='); - init = isolateCoverGrammar(parseAssignmentExpression); - } - } else if ((!options.inFor && id.type !== Syntax.Identifier) || match('=')) { - expect('='); - init = isolateCoverGrammar(parseAssignmentExpression); - } - - return node.finishVariableDeclarator(id, init); - } - - function parseBindingList(kind, options) { - var list = [parseLexicalBinding(kind, options)]; - - while (match(',')) { - lex(); - list.push(parseLexicalBinding(kind, options)); - } - - return list; - } - - - function tokenizerState() { - return { - index: index, - lineNumber: lineNumber, - lineStart: lineStart, - hasLineTerminator: hasLineTerminator, - lastIndex: lastIndex, - lastLineNumber: lastLineNumber, - lastLineStart: lastLineStart, - startIndex: startIndex, - startLineNumber: startLineNumber, - startLineStart: startLineStart, - lookahead: lookahead, - tokenCount: extra.tokens ? extra.tokens.length : 0 - }; - } - - function resetTokenizerState(ts) { - index = ts.index; - lineNumber = ts.lineNumber; - lineStart = ts.lineStart; - hasLineTerminator = ts.hasLineTerminator; - lastIndex = ts.lastIndex; - lastLineNumber = ts.lastLineNumber; - lastLineStart = ts.lastLineStart; - startIndex = ts.startIndex; - startLineNumber = ts.startLineNumber; - startLineStart = ts.startLineStart; - lookahead = ts.lookahead; - if (extra.tokens) { - extra.tokens.splice(ts.tokenCount, extra.tokens.length); - } - } - - function isLexicalDeclaration() { - var lexical, ts; - - ts = tokenizerState(); - - lex(); - lexical = (lookahead.type === Token.Identifier) || match('[') || match('{') || - matchKeyword('let') || matchKeyword('yield'); - - resetTokenizerState(ts); - - return lexical; - } - - function parseLexicalDeclaration(options) { - var kind, declarations, node = new Node(); - - kind = lex().value; - assert(kind === 'let' || kind === 'const', 'Lexical declaration must be either let or const'); - - declarations = parseBindingList(kind, options); - - consumeSemicolon(); - - return node.finishLexicalDeclaration(declarations, kind); - } - - function parseRestElement(params) { - var param, node = new Node(); - - lex(); - - if (match('{')) { - throwError(Messages.ObjectPatternAsRestParameter); - } - - params.push(lookahead); - - param = parseVariableIdentifier(); - - if (match('=')) { - throwError(Messages.DefaultRestParameter); - } - - if (!match(')')) { - throwError(Messages.ParameterAfterRestParameter); - } - - return node.finishRestElement(param); - } - - // ECMA-262 13.4 Empty Statement - - function parseEmptyStatement(node) { - expect(';'); - return node.finishEmptyStatement(); - } - - // ECMA-262 12.4 Expression Statement - - function parseExpressionStatement(node) { - var expr = parseExpression(); - consumeSemicolon(); - return node.finishExpressionStatement(expr); - } - - // ECMA-262 13.6 If statement - - function parseIfStatement(node) { - var test, consequent, alternate; - - expectKeyword('if'); - - expect('('); - - test = parseExpression(); - - expect(')'); - - consequent = parseStatement(); - - if (matchKeyword('else')) { - lex(); - alternate = parseStatement(); - } else { - alternate = null; - } - - return node.finishIfStatement(test, consequent, alternate); - } - - // ECMA-262 13.7 Iteration Statements - - function parseDoWhileStatement(node) { - var body, test, oldInIteration; - - expectKeyword('do'); - - oldInIteration = state.inIteration; - state.inIteration = true; - - body = parseStatement(); - - state.inIteration = oldInIteration; - - expectKeyword('while'); - - expect('('); - - test = parseExpression(); - - expect(')'); - - if (match(';')) { - lex(); - } - - return node.finishDoWhileStatement(body, test); - } - - function parseWhileStatement(node) { - var test, body, oldInIteration; - - expectKeyword('while'); - - expect('('); - - test = parseExpression(); - - expect(')'); - - oldInIteration = state.inIteration; - state.inIteration = true; - - body = parseStatement(); - - state.inIteration = oldInIteration; - - return node.finishWhileStatement(test, body); - } - - function parseForStatement(node) { - var init, forIn, initSeq, initStartToken, test, update, left, right, kind, declarations, - body, oldInIteration, previousAllowIn = state.allowIn; - - init = test = update = null; - forIn = true; - - expectKeyword('for'); - - expect('('); - - if (match(';')) { - lex(); - } else { - if (matchKeyword('var')) { - init = new Node(); - lex(); - - state.allowIn = false; - declarations = parseVariableDeclarationList({ inFor: true }); - state.allowIn = previousAllowIn; - - if (declarations.length === 1 && matchKeyword('in')) { - init = init.finishVariableDeclaration(declarations); - lex(); - left = init; - right = parseExpression(); - init = null; - } else if (declarations.length === 1 && declarations[0].init === null && matchContextualKeyword('of')) { - init = init.finishVariableDeclaration(declarations); - lex(); - left = init; - right = parseAssignmentExpression(); - init = null; - forIn = false; - } else { - init = init.finishVariableDeclaration(declarations); - expect(';'); - } - } else if (matchKeyword('const') || matchKeyword('let')) { - init = new Node(); - kind = lex().value; - - if (!strict && lookahead.value === 'in') { - init = init.finishIdentifier(kind); - lex(); - left = init; - right = parseExpression(); - init = null; - } else { - state.allowIn = false; - declarations = parseBindingList(kind, {inFor: true}); - state.allowIn = previousAllowIn; - - if (declarations.length === 1 && declarations[0].init === null && matchKeyword('in')) { - init = init.finishLexicalDeclaration(declarations, kind); - lex(); - left = init; - right = parseExpression(); - init = null; - } else if (declarations.length === 1 && declarations[0].init === null && matchContextualKeyword('of')) { - init = init.finishLexicalDeclaration(declarations, kind); - lex(); - left = init; - right = parseAssignmentExpression(); - init = null; - forIn = false; - } else { - consumeSemicolon(); - init = init.finishLexicalDeclaration(declarations, kind); - } - } - } else { - initStartToken = lookahead; - state.allowIn = false; - init = inheritCoverGrammar(parseAssignmentExpression); - state.allowIn = previousAllowIn; - - if (matchKeyword('in')) { - if (!isAssignmentTarget) { - tolerateError(Messages.InvalidLHSInForIn); - } - - lex(); - reinterpretExpressionAsPattern(init); - left = init; - right = parseExpression(); - init = null; - } else if (matchContextualKeyword('of')) { - if (!isAssignmentTarget) { - tolerateError(Messages.InvalidLHSInForLoop); - } - - lex(); - reinterpretExpressionAsPattern(init); - left = init; - right = parseAssignmentExpression(); - init = null; - forIn = false; - } else { - if (match(',')) { - initSeq = [init]; - while (match(',')) { - lex(); - initSeq.push(isolateCoverGrammar(parseAssignmentExpression)); - } - init = new WrappingNode(initStartToken).finishSequenceExpression(initSeq); - } - expect(';'); - } - } - } - - if (typeof left === 'undefined') { - - if (!match(';')) { - test = parseExpression(); - } - expect(';'); - - if (!match(')')) { - update = parseExpression(); - } - } - - expect(')'); - - oldInIteration = state.inIteration; - state.inIteration = true; - - body = isolateCoverGrammar(parseStatement); - - state.inIteration = oldInIteration; - - return (typeof left === 'undefined') ? - node.finishForStatement(init, test, update, body) : - forIn ? node.finishForInStatement(left, right, body) : - node.finishForOfStatement(left, right, body); - } - - // ECMA-262 13.8 The continue statement - - function parseContinueStatement(node) { - var label = null, key; - - expectKeyword('continue'); - - // Optimize the most common form: 'continue;'. - if (source.charCodeAt(startIndex) === 0x3B) { - lex(); - - if (!state.inIteration) { - throwError(Messages.IllegalContinue); - } - - return node.finishContinueStatement(null); - } - - if (hasLineTerminator) { - if (!state.inIteration) { - throwError(Messages.IllegalContinue); - } - - return node.finishContinueStatement(null); - } - - if (lookahead.type === Token.Identifier) { - label = parseVariableIdentifier(); - - key = '$' + label.name; - if (!Object.prototype.hasOwnProperty.call(state.labelSet, key)) { - throwError(Messages.UnknownLabel, label.name); - } - } - - consumeSemicolon(); - - if (label === null && !state.inIteration) { - throwError(Messages.IllegalContinue); - } - - return node.finishContinueStatement(label); - } - - // ECMA-262 13.9 The break statement - - function parseBreakStatement(node) { - var label = null, key; - - expectKeyword('break'); - - // Catch the very common case first: immediately a semicolon (U+003B). - if (source.charCodeAt(lastIndex) === 0x3B) { - lex(); - - if (!(state.inIteration || state.inSwitch)) { - throwError(Messages.IllegalBreak); - } - - return node.finishBreakStatement(null); - } - - if (hasLineTerminator) { - if (!(state.inIteration || state.inSwitch)) { - throwError(Messages.IllegalBreak); - } - } else if (lookahead.type === Token.Identifier) { - label = parseVariableIdentifier(); - - key = '$' + label.name; - if (!Object.prototype.hasOwnProperty.call(state.labelSet, key)) { - throwError(Messages.UnknownLabel, label.name); - } - } - - consumeSemicolon(); - - if (label === null && !(state.inIteration || state.inSwitch)) { - throwError(Messages.IllegalBreak); - } - - return node.finishBreakStatement(label); - } - - // ECMA-262 13.10 The return statement - - function parseReturnStatement(node) { - var argument = null; - - expectKeyword('return'); - - if (!state.inFunctionBody) { - tolerateError(Messages.IllegalReturn); - } - - // 'return' followed by a space and an identifier is very common. - if (source.charCodeAt(lastIndex) === 0x20) { - if (isIdentifierStart(source.charCodeAt(lastIndex + 1))) { - argument = parseExpression(); - consumeSemicolon(); - return node.finishReturnStatement(argument); - } - } - - if (hasLineTerminator) { - // HACK - return node.finishReturnStatement(null); - } - - if (!match(';')) { - if (!match('}') && lookahead.type !== Token.EOF) { - argument = parseExpression(); - } - } - - consumeSemicolon(); - - return node.finishReturnStatement(argument); - } - - // ECMA-262 13.11 The with statement - - function parseWithStatement(node) { - var object, body; - - if (strict) { - tolerateError(Messages.StrictModeWith); - } - - expectKeyword('with'); - - expect('('); - - object = parseExpression(); - - expect(')'); - - body = parseStatement(); - - return node.finishWithStatement(object, body); - } - - // ECMA-262 13.12 The switch statement - - function parseSwitchCase() { - var test, consequent = [], statement, node = new Node(); - - if (matchKeyword('default')) { - lex(); - test = null; - } else { - expectKeyword('case'); - test = parseExpression(); - } - expect(':'); - - while (startIndex < length) { - if (match('}') || matchKeyword('default') || matchKeyword('case')) { - break; - } - statement = parseStatementListItem(); - consequent.push(statement); - } - - return node.finishSwitchCase(test, consequent); - } - - function parseSwitchStatement(node) { - var discriminant, cases, clause, oldInSwitch, defaultFound; - - expectKeyword('switch'); - - expect('('); - - discriminant = parseExpression(); - - expect(')'); - - expect('{'); - - cases = []; - - if (match('}')) { - lex(); - return node.finishSwitchStatement(discriminant, cases); - } - - oldInSwitch = state.inSwitch; - state.inSwitch = true; - defaultFound = false; - - while (startIndex < length) { - if (match('}')) { - break; - } - clause = parseSwitchCase(); - if (clause.test === null) { - if (defaultFound) { - throwError(Messages.MultipleDefaultsInSwitch); - } - defaultFound = true; - } - cases.push(clause); - } - - state.inSwitch = oldInSwitch; - - expect('}'); - - return node.finishSwitchStatement(discriminant, cases); - } - - // ECMA-262 13.14 The throw statement - - function parseThrowStatement(node) { - var argument; - - expectKeyword('throw'); - - if (hasLineTerminator) { - throwError(Messages.NewlineAfterThrow); - } - - argument = parseExpression(); - - consumeSemicolon(); - - return node.finishThrowStatement(argument); - } - - // ECMA-262 13.15 The try statement - - function parseCatchClause() { - var param, params = [], paramMap = {}, key, i, body, node = new Node(); - - expectKeyword('catch'); - - expect('('); - if (match(')')) { - throwUnexpectedToken(lookahead); - } - - param = parsePattern(params); - for (i = 0; i < params.length; i++) { - key = '$' + params[i].value; - if (Object.prototype.hasOwnProperty.call(paramMap, key)) { - tolerateError(Messages.DuplicateBinding, params[i].value); - } - paramMap[key] = true; - } - - // ECMA-262 12.14.1 - if (strict && isRestrictedWord(param.name)) { - tolerateError(Messages.StrictCatchVariable); - } - - expect(')'); - body = parseBlock(); - return node.finishCatchClause(param, body); - } - - function parseTryStatement(node) { - var block, handler = null, finalizer = null; - - expectKeyword('try'); - - block = parseBlock(); - - if (matchKeyword('catch')) { - handler = parseCatchClause(); - } - - if (matchKeyword('finally')) { - lex(); - finalizer = parseBlock(); - } - - if (!handler && !finalizer) { - throwError(Messages.NoCatchOrFinally); - } - - return node.finishTryStatement(block, handler, finalizer); - } - - // ECMA-262 13.16 The debugger statement - - function parseDebuggerStatement(node) { - expectKeyword('debugger'); - - consumeSemicolon(); - - return node.finishDebuggerStatement(); - } - - // 13 Statements - - function parseStatement() { - var type = lookahead.type, - expr, - labeledBody, - key, - node; - - if (type === Token.EOF) { - throwUnexpectedToken(lookahead); - } - - if (type === Token.Punctuator && lookahead.value === '{') { - return parseBlock(); - } - isAssignmentTarget = isBindingElement = true; - node = new Node(); - - if (type === Token.Punctuator) { - switch (lookahead.value) { - case ';': - return parseEmptyStatement(node); - case '(': - return parseExpressionStatement(node); - default: - break; - } - } else if (type === Token.Keyword) { - switch (lookahead.value) { - case 'break': - return parseBreakStatement(node); - case 'continue': - return parseContinueStatement(node); - case 'debugger': - return parseDebuggerStatement(node); - case 'do': - return parseDoWhileStatement(node); - case 'for': - return parseForStatement(node); - case 'function': - return parseFunctionDeclaration(node); - case 'if': - return parseIfStatement(node); - case 'return': - return parseReturnStatement(node); - case 'switch': - return parseSwitchStatement(node); - case 'throw': - return parseThrowStatement(node); - case 'try': - return parseTryStatement(node); - case 'var': - return parseVariableStatement(node); - case 'while': - return parseWhileStatement(node); - case 'with': - return parseWithStatement(node); - default: - break; - } - } - - expr = parseExpression(); - - // ECMA-262 12.12 Labelled Statements - if ((expr.type === Syntax.Identifier) && match(':')) { - lex(); - - key = '$' + expr.name; - if (Object.prototype.hasOwnProperty.call(state.labelSet, key)) { - throwError(Messages.Redeclaration, 'Label', expr.name); - } - - state.labelSet[key] = true; - labeledBody = parseStatement(); - delete state.labelSet[key]; - return node.finishLabeledStatement(expr, labeledBody); - } - - consumeSemicolon(); - - return node.finishExpressionStatement(expr); - } - - // ECMA-262 14.1 Function Definition - - function parseFunctionSourceElements() { - var statement, body = [], token, directive, firstRestricted, - oldLabelSet, oldInIteration, oldInSwitch, oldInFunctionBody, - node = new Node(); - - expect('{'); - - while (startIndex < length) { - if (lookahead.type !== Token.StringLiteral) { - break; - } - token = lookahead; - - statement = parseStatementListItem(); - body.push(statement); - if (statement.expression.type !== Syntax.Literal) { - // this is not directive - break; - } - directive = source.slice(token.start + 1, token.end - 1); - if (directive === 'use strict') { - strict = true; - if (firstRestricted) { - tolerateUnexpectedToken(firstRestricted, Messages.StrictOctalLiteral); - } - } else { - if (!firstRestricted && token.octal) { - firstRestricted = token; - } - } - } - - oldLabelSet = state.labelSet; - oldInIteration = state.inIteration; - oldInSwitch = state.inSwitch; - oldInFunctionBody = state.inFunctionBody; - - state.labelSet = {}; - state.inIteration = false; - state.inSwitch = false; - state.inFunctionBody = true; - - while (startIndex < length) { - if (match('}')) { - break; - } - body.push(parseStatementListItem()); - } - - expect('}'); - - state.labelSet = oldLabelSet; - state.inIteration = oldInIteration; - state.inSwitch = oldInSwitch; - state.inFunctionBody = oldInFunctionBody; - - return node.finishBlockStatement(body); - } - - function validateParam(options, param, name) { - var key = '$' + name; - if (strict) { - if (isRestrictedWord(name)) { - options.stricted = param; - options.message = Messages.StrictParamName; - } - if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) { - options.stricted = param; - options.message = Messages.StrictParamDupe; - } - } else if (!options.firstRestricted) { - if (isRestrictedWord(name)) { - options.firstRestricted = param; - options.message = Messages.StrictParamName; - } else if (isStrictModeReservedWord(name)) { - options.firstRestricted = param; - options.message = Messages.StrictReservedWord; - } else if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) { - options.stricted = param; - options.message = Messages.StrictParamDupe; - } - } - options.paramSet[key] = true; - } - - function parseParam(options) { - var token, param, params = [], i, def; - - token = lookahead; - if (token.value === '...') { - param = parseRestElement(params); - validateParam(options, param.argument, param.argument.name); - options.params.push(param); - options.defaults.push(null); - return false; - } - - param = parsePatternWithDefault(params); - for (i = 0; i < params.length; i++) { - validateParam(options, params[i], params[i].value); - } - - if (param.type === Syntax.AssignmentPattern) { - def = param.right; - param = param.left; - ++options.defaultCount; - } - - options.params.push(param); - options.defaults.push(def); - - return !match(')'); - } - - function parseParams(firstRestricted) { - var options; - - options = { - params: [], - defaultCount: 0, - defaults: [], - firstRestricted: firstRestricted - }; - - expect('('); - - if (!match(')')) { - options.paramSet = {}; - while (startIndex < length) { - if (!parseParam(options)) { - break; - } - expect(','); - } - } - - expect(')'); - - if (options.defaultCount === 0) { - options.defaults = []; - } - - return { - params: options.params, - defaults: options.defaults, - stricted: options.stricted, - firstRestricted: options.firstRestricted, - message: options.message - }; - } - - function parseFunctionDeclaration(node, identifierIsOptional) { - var id = null, params = [], defaults = [], body, token, stricted, tmp, firstRestricted, message, previousStrict, - isGenerator, previousAllowYield; - - previousAllowYield = state.allowYield; - - expectKeyword('function'); - - isGenerator = match('*'); - if (isGenerator) { - lex(); - } - - if (!identifierIsOptional || !match('(')) { - token = lookahead; - id = parseVariableIdentifier(); - if (strict) { - if (isRestrictedWord(token.value)) { - tolerateUnexpectedToken(token, Messages.StrictFunctionName); - } - } else { - if (isRestrictedWord(token.value)) { - firstRestricted = token; - message = Messages.StrictFunctionName; - } else if (isStrictModeReservedWord(token.value)) { - firstRestricted = token; - message = Messages.StrictReservedWord; - } - } - } - - state.allowYield = !isGenerator; - tmp = parseParams(firstRestricted); - params = tmp.params; - defaults = tmp.defaults; - stricted = tmp.stricted; - firstRestricted = tmp.firstRestricted; - if (tmp.message) { - message = tmp.message; - } - - - previousStrict = strict; - body = parseFunctionSourceElements(); - if (strict && firstRestricted) { - throwUnexpectedToken(firstRestricted, message); - } - if (strict && stricted) { - tolerateUnexpectedToken(stricted, message); - } - - strict = previousStrict; - state.allowYield = previousAllowYield; - - return node.finishFunctionDeclaration(id, params, defaults, body, isGenerator); - } - - function parseFunctionExpression() { - var token, id = null, stricted, firstRestricted, message, tmp, - params = [], defaults = [], body, previousStrict, node = new Node(), - isGenerator, previousAllowYield; - - previousAllowYield = state.allowYield; - - expectKeyword('function'); - - isGenerator = match('*'); - if (isGenerator) { - lex(); - } - - state.allowYield = !isGenerator; - if (!match('(')) { - token = lookahead; - id = (!strict && !isGenerator && matchKeyword('yield')) ? parseNonComputedProperty() : parseVariableIdentifier(); - if (strict) { - if (isRestrictedWord(token.value)) { - tolerateUnexpectedToken(token, Messages.StrictFunctionName); - } - } else { - if (isRestrictedWord(token.value)) { - firstRestricted = token; - message = Messages.StrictFunctionName; - } else if (isStrictModeReservedWord(token.value)) { - firstRestricted = token; - message = Messages.StrictReservedWord; - } - } - } - - tmp = parseParams(firstRestricted); - params = tmp.params; - defaults = tmp.defaults; - stricted = tmp.stricted; - firstRestricted = tmp.firstRestricted; - if (tmp.message) { - message = tmp.message; - } - - previousStrict = strict; - body = parseFunctionSourceElements(); - if (strict && firstRestricted) { - throwUnexpectedToken(firstRestricted, message); - } - if (strict && stricted) { - tolerateUnexpectedToken(stricted, message); - } - strict = previousStrict; - state.allowYield = previousAllowYield; - - return node.finishFunctionExpression(id, params, defaults, body, isGenerator); - } - - // ECMA-262 14.5 Class Definitions - - function parseClassBody() { - var classBody, token, isStatic, hasConstructor = false, body, method, computed, key; - - classBody = new Node(); - - expect('{'); - body = []; - while (!match('}')) { - if (match(';')) { - lex(); - } else { - method = new Node(); - token = lookahead; - isStatic = false; - computed = match('['); - if (match('*')) { - lex(); - } else { - key = parseObjectPropertyKey(); - if (key.name === 'static' && (lookaheadPropertyName() || match('*'))) { - token = lookahead; - isStatic = true; - computed = match('['); - if (match('*')) { - lex(); - } else { - key = parseObjectPropertyKey(); - } - } - } - method = tryParseMethodDefinition(token, key, computed, method); - if (method) { - method['static'] = isStatic; // jscs:ignore requireDotNotation - if (method.kind === 'init') { - method.kind = 'method'; - } - if (!isStatic) { - if (!method.computed && (method.key.name || method.key.value.toString()) === 'constructor') { - if (method.kind !== 'method' || !method.method || method.value.generator) { - throwUnexpectedToken(token, Messages.ConstructorSpecialMethod); - } - if (hasConstructor) { - throwUnexpectedToken(token, Messages.DuplicateConstructor); - } else { - hasConstructor = true; - } - method.kind = 'constructor'; - } - } else { - if (!method.computed && (method.key.name || method.key.value.toString()) === 'prototype') { - throwUnexpectedToken(token, Messages.StaticPrototype); - } - } - method.type = Syntax.MethodDefinition; - delete method.method; - delete method.shorthand; - body.push(method); - } else { - throwUnexpectedToken(lookahead); - } - } - } - lex(); - return classBody.finishClassBody(body); - } - - function parseClassDeclaration(identifierIsOptional) { - var id = null, superClass = null, classNode = new Node(), classBody, previousStrict = strict; - strict = true; - - expectKeyword('class'); - - if (!identifierIsOptional || lookahead.type === Token.Identifier) { - id = parseVariableIdentifier(); - } - - if (matchKeyword('extends')) { - lex(); - superClass = isolateCoverGrammar(parseLeftHandSideExpressionAllowCall); - } - classBody = parseClassBody(); - strict = previousStrict; - - return classNode.finishClassDeclaration(id, superClass, classBody); - } - - function parseClassExpression() { - var id = null, superClass = null, classNode = new Node(), classBody, previousStrict = strict; - strict = true; - - expectKeyword('class'); - - if (lookahead.type === Token.Identifier) { - id = parseVariableIdentifier(); - } - - if (matchKeyword('extends')) { - lex(); - superClass = isolateCoverGrammar(parseLeftHandSideExpressionAllowCall); - } - classBody = parseClassBody(); - strict = previousStrict; - - return classNode.finishClassExpression(id, superClass, classBody); - } - - // ECMA-262 15.2 Modules - - function parseModuleSpecifier() { - var node = new Node(); - - if (lookahead.type !== Token.StringLiteral) { - throwError(Messages.InvalidModuleSpecifier); - } - return node.finishLiteral(lex()); - } - - // ECMA-262 15.2.3 Exports - - function parseExportSpecifier() { - var exported, local, node = new Node(), def; - if (matchKeyword('default')) { - // export {default} from 'something'; - def = new Node(); - lex(); - local = def.finishIdentifier('default'); - } else { - local = parseVariableIdentifier(); - } - if (matchContextualKeyword('as')) { - lex(); - exported = parseNonComputedProperty(); - } - return node.finishExportSpecifier(local, exported); - } - - function parseExportNamedDeclaration(node) { - var declaration = null, - isExportFromIdentifier, - src = null, specifiers = []; - - // non-default export - if (lookahead.type === Token.Keyword) { - // covers: - // export var f = 1; - switch (lookahead.value) { - case 'let': - case 'const': - declaration = parseLexicalDeclaration({inFor: false}); - return node.finishExportNamedDeclaration(declaration, specifiers, null); - case 'var': - case 'class': - case 'function': - declaration = parseStatementListItem(); - return node.finishExportNamedDeclaration(declaration, specifiers, null); - } - } - - expect('{'); - while (!match('}')) { - isExportFromIdentifier = isExportFromIdentifier || matchKeyword('default'); - specifiers.push(parseExportSpecifier()); - if (!match('}')) { - expect(','); - if (match('}')) { - break; - } - } - } - expect('}'); - - if (matchContextualKeyword('from')) { - // covering: - // export {default} from 'foo'; - // export {foo} from 'foo'; - lex(); - src = parseModuleSpecifier(); - consumeSemicolon(); - } else if (isExportFromIdentifier) { - // covering: - // export {default}; // missing fromClause - throwError(lookahead.value ? - Messages.UnexpectedToken : Messages.MissingFromClause, lookahead.value); - } else { - // cover - // export {foo}; - consumeSemicolon(); - } - return node.finishExportNamedDeclaration(declaration, specifiers, src); - } - - function parseExportDefaultDeclaration(node) { - var declaration = null, - expression = null; - - // covers: - // export default ... - expectKeyword('default'); - - if (matchKeyword('function')) { - // covers: - // export default function foo () {} - // export default function () {} - declaration = parseFunctionDeclaration(new Node(), true); - return node.finishExportDefaultDeclaration(declaration); - } - if (matchKeyword('class')) { - declaration = parseClassDeclaration(true); - return node.finishExportDefaultDeclaration(declaration); - } - - if (matchContextualKeyword('from')) { - throwError(Messages.UnexpectedToken, lookahead.value); - } - - // covers: - // export default {}; - // export default []; - // export default (1 + 2); - if (match('{')) { - expression = parseObjectInitializer(); - } else if (match('[')) { - expression = parseArrayInitializer(); - } else { - expression = parseAssignmentExpression(); - } - consumeSemicolon(); - return node.finishExportDefaultDeclaration(expression); - } - - function parseExportAllDeclaration(node) { - var src; - - // covers: - // export * from 'foo'; - expect('*'); - if (!matchContextualKeyword('from')) { - throwError(lookahead.value ? - Messages.UnexpectedToken : Messages.MissingFromClause, lookahead.value); - } - lex(); - src = parseModuleSpecifier(); - consumeSemicolon(); - - return node.finishExportAllDeclaration(src); - } - - function parseExportDeclaration() { - var node = new Node(); - if (state.inFunctionBody) { - throwError(Messages.IllegalExportDeclaration); - } - - expectKeyword('export'); - - if (matchKeyword('default')) { - return parseExportDefaultDeclaration(node); - } - if (match('*')) { - return parseExportAllDeclaration(node); - } - return parseExportNamedDeclaration(node); - } - - // ECMA-262 15.2.2 Imports - - function parseImportSpecifier() { - // import {} ...; - var local, imported, node = new Node(); - - imported = parseNonComputedProperty(); - if (matchContextualKeyword('as')) { - lex(); - local = parseVariableIdentifier(); - } - - return node.finishImportSpecifier(local, imported); - } - - function parseNamedImports() { - var specifiers = []; - // {foo, bar as bas} - expect('{'); - while (!match('}')) { - specifiers.push(parseImportSpecifier()); - if (!match('}')) { - expect(','); - if (match('}')) { - break; - } - } - } - expect('}'); - return specifiers; - } - - function parseImportDefaultSpecifier() { - // import ...; - var local, node = new Node(); - - local = parseNonComputedProperty(); - - return node.finishImportDefaultSpecifier(local); - } - - function parseImportNamespaceSpecifier() { - // import <* as foo> ...; - var local, node = new Node(); - - expect('*'); - if (!matchContextualKeyword('as')) { - throwError(Messages.NoAsAfterImportNamespace); - } - lex(); - local = parseNonComputedProperty(); - - return node.finishImportNamespaceSpecifier(local); - } - - function parseImportDeclaration() { - var specifiers = [], src, node = new Node(); - - if (state.inFunctionBody) { - throwError(Messages.IllegalImportDeclaration); - } - - expectKeyword('import'); - - if (lookahead.type === Token.StringLiteral) { - // import 'foo'; - src = parseModuleSpecifier(); - } else { - - if (match('{')) { - // import {bar} - specifiers = specifiers.concat(parseNamedImports()); - } else if (match('*')) { - // import * as foo - specifiers.push(parseImportNamespaceSpecifier()); - } else if (isIdentifierName(lookahead) && !matchKeyword('default')) { - // import foo - specifiers.push(parseImportDefaultSpecifier()); - if (match(',')) { - lex(); - if (match('*')) { - // import foo, * as foo - specifiers.push(parseImportNamespaceSpecifier()); - } else if (match('{')) { - // import foo, {bar} - specifiers = specifiers.concat(parseNamedImports()); - } else { - throwUnexpectedToken(lookahead); - } - } - } else { - throwUnexpectedToken(lex()); - } + "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('...'); + var arg = this.parsePattern(params, kind); + return this.finalize(node, new Node.RestElement(arg)); + }; + Parser.prototype.parseArrayPattern = function (params, kind) { + var node = this.createNode(); + this.expect('['); + var elements = []; + while (!this.match(']')) { + if (this.match(',')) { + this.nextToken(); + elements.push(null); + } + else { + if (this.match('...')) { + elements.push(this.parseBindingRestElement(params, kind)); + break; + } + else { + elements.push(this.parsePatternWithDefault(params, kind)); + } + if (!this.match(']')) { + this.expect(','); + } + } + } + this.expect(']'); + return this.finalize(node, new Node.ArrayPattern(elements)); + }; + Parser.prototype.parsePropertyPattern = function (params, kind) { + var node = this.createNode(); + var computed = false; + var shorthand = false; + var method = false; + var key; + var value; + if (this.lookahead.type === 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.expect('...'); + var arg = this.parsePattern(params); + if (this.match('=')) { + this.throwError(messages_1.Messages.DefaultRestParameter); + } + if (!this.match(')')) { + this.throwError(messages_1.Messages.ParameterAfterRestParameter); + } + return this.finalize(node, new Node.RestElement(arg)); + }; + Parser.prototype.parseFormalParameter = function (options) { + var params = []; + var param = this.match('...') ? this.parseRestElement(params) : this.parsePatternWithDefault(params); + for (var i = 0; i < params.length; i++) { + this.validateParam(options, params[i], params[i].value); + } + options.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.isStartOfExpression = function () { + var start = true; + var value = this.lookahead.value; + switch (this.lookahead.type) { + case token_1.Token.Punctuator: + start = (value === '[') || (value === '(') || (value === '{') || + (value === '+') || (value === '-') || + (value === '!') || (value === '~') || + (value === '++') || (value === '--') || + (value === '/') || (value === '/='); // regular expression literal + break; + case token_1.Token.Keyword: + start = (value === 'class') || (value === 'delete') || + (value === 'function') || (value === 'let') || (value === 'new') || + (value === 'super') || (value === 'this') || (value === 'typeof') || + (value === 'void') || (value === 'yield'); + break; + default: + break; + } + return start; + }; + Parser.prototype.parseYieldExpression = function () { + var node = this.createNode(); + this.expectKeyword('yield'); + var argument = null; + var delegate = false; + if (!this.hasLineTerminator) { + var previousAllowYield = this.context.allowYield; + this.context.allowYield = false; + delegate = this.match('*'); + if (delegate) { + this.nextToken(); + argument = this.parseAssignmentExpression(); + } + else if (this.isStartOfExpression()) { + argument = this.parseAssignmentExpression(); + } + this.context.allowYield = previousAllowYield; + } + return this.finalize(node, new Node.YieldExpression(argument, delegate)); + }; + // 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 imported; + var local; + if (this.lookahead.type === token_1.Token.Identifier) { + imported = this.parseVariableIdentifier(); + local = imported; + if (this.matchContextualKeyword('as')) { + this.nextToken(); + local = this.parseVariableIdentifier(); + } + } + else { + imported = this.parseIdentifierName(); + local = imported; + if (this.matchContextualKeyword('as')) { + this.nextToken(); + local = this.parseVariableIdentifier(); + } + else { + this.throwUnexpectedToken(this.nextToken()); + } + } + return this.finalize(node, new Node.ImportSpecifier(local, imported)); + }; + // {foo, bar as bas} + Parser.prototype.parseNamedImports = function () { + this.expect('{'); + var specifiers = []; + while (!this.match('}')) { + specifiers.push(this.parseImportSpecifier()); + if (!this.match('}')) { + this.expect(','); + } + } + this.expect('}'); + return specifiers; + }; + // import ...; + 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; - if (!matchContextualKeyword('from')) { - throwError(lookahead.value ? - Messages.UnexpectedToken : Messages.MissingFromClause, lookahead.value); - } - lex(); - src = parseModuleSpecifier(); - } - consumeSemicolon(); - return node.finishImportDeclaration(specifiers, src); - } +/***/ }, +/* 4 */ +/***/ function(module, exports) { - // ECMA-262 15.1 Scripts + // 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; - function parseScriptBody() { - var statement, body = [], token, directive, firstRestricted; - while (startIndex < length) { - token = lookahead; - if (token.type !== Token.StringLiteral) { - break; - } +/***/ }, +/* 5 */ +/***/ function(module, exports) { - statement = parseStatementListItem(); - body.push(statement); - if (statement.expression.type !== Syntax.Literal) { - // this is not directive - break; - } - directive = source.slice(token.start + 1, token.end - 1); - if (directive === 'use strict') { - strict = true; - if (firstRestricted) { - tolerateUnexpectedToken(firstRestricted, Messages.StrictOctalLiteral); - } - } else { - if (!firstRestricted && token.octal) { - firstRestricted = token; - } - } - } + "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 =', + 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' + }; - while (startIndex < length) { - statement = parseStatementListItem(); - /* istanbul ignore if */ - if (typeof statement === 'undefined') { - break; - } - body.push(statement); - } - return body; - } - function parseProgram() { - var body, node; +/***/ }, +/* 6 */ +/***/ function(module, exports) { - peek(); - node = new Node(); + "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; - body = parseScriptBody(); - return node.finishProgram(body, state.sourceType); - } - function filterTokenLocation() { - var i, entry, token, tokens = []; +/***/ }, +/* 7 */ +/***/ function(module, exports) { - for (i = 0; i < extra.tokens.length; ++i) { - entry = extra.tokens[i]; - token = { - type: entry.type, - value: entry.value - }; - if (entry.regex) { - token.regex = { - pattern: entry.regex.pattern, - flags: entry.regex.flags - }; - } - if (extra.range) { - token.range = entry.range; - } - if (extra.loc) { - token.loc = entry.loc; - } - tokens.push(token); - } + "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'; - extra.tokens = tokens; - } - function tokenize(code, options, delegate) { - var toString, - tokens; - - toString = String; - if (typeof code !== 'string' && !(code instanceof String)) { - code = toString(code); - } - - source = code; - index = 0; - lineNumber = (source.length > 0) ? 1 : 0; - lineStart = 0; - startIndex = index; - startLineNumber = lineNumber; - startLineStart = lineStart; - length = source.length; - lookahead = null; - state = { - allowIn: true, - allowYield: true, - labelSet: {}, - inFunctionBody: false, - inIteration: false, - inSwitch: false, - lastCommentStart: -1, - curlyStack: [] - }; +/***/ }, +/* 8 */ +/***/ function(module, exports, __webpack_require__) { - extra = {}; + "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; // ` x -= 2 + self.operator = self.right.operator + "="; + self.right = self.right.right; + } + else if (self.right.right instanceof AST_SymbolRef + && self.right.right.name == self.left.name + && member(self.right.operator, ASSIGN_OPS_COMMUTATIVE) + && !self.right.left.has_side_effects(compressor)) { + // x = 2 & x ---> x &= 2 + self.operator = self.right.operator + "="; + self.right = self.right.left; + } } return self; }); @@ -21451,7 +22176,7 @@ function SourceMap(options) { var orig_map = options.orig && new MOZ_SourceMap.SourceMapConsumer(options.orig); if (orig_map && Array.isArray(options.orig.sources)) { - options.orig.sources.forEach(function(source) { + orig_map._sources.toArray().forEach(function(source) { var sourceContent = orig_map.sourceContentFor(source, true); if (sourceContent) { generator.setSourceContent(source, sourceContent); @@ -22165,7 +22890,8 @@ function mangle_properties(ast, options) { cache : null, only_cache : false, regex : null, - ignore_quoted : false + ignore_quoted : false, + debug : false }); var reserved = options.reserved; @@ -22183,6 +22909,15 @@ function mangle_properties(ast, options) { var regex = options.regex; var ignore_quoted = options.ignore_quoted; + // note debug is either false (disabled), or a string of the debug suffix to use (enabled). + // note debug may be enabled as an empty string, which is falsey. Also treat passing 'true' + // the same as passing an empty string. + var debug = (options.debug !== false); + var debug_name_suffix; + if (debug) { + debug_name_suffix = (options.debug === true ? "" : options.debug); + } + var names_to_mangle = []; var unmangleable = []; var ignored = {}; @@ -22276,9 +23011,25 @@ function mangle_properties(ast, options) { var mangled = cache.props.get(name); if (!mangled) { - do { - mangled = base54(++cache.cname); - } while (!can_mangle(mangled)); + if (debug) { + // debug mode: use a prefix and suffix to preserve readability, e.g. o.foo -> o._$foo$NNN_. + var debug_mangled = "_$" + name + "$" + debug_name_suffix + "_"; + + if (can_mangle(debug_mangled) && !(ignore_quoted && debug_mangled in ignored)) { + mangled = debug_mangled; + } + } + + // either debug mode is off, or it is on and we could not use the mangled name + if (!mangled) { + // note can_mangle() does not check if the name collides with the 'ignored' set + // (filled with quoted properties when ignore_quoted set). Make sure we add this + // check so we don't collide with a quoted name. + do { + mangled = base54(++cache.cname); + } while (!can_mangle(mangled) || (ignore_quoted && mangled in ignored)); + } + cache.props.set(name, mangled); } return mangled; @@ -22333,9 +23084,11 @@ exports.minify = function(files, options, name) { options = defaults(options, { spidermonkey : false, outSourceMap : null, + outFileName : null, sourceRoot : null, inSourceMap : null, sourceMapUrl : null, + sourceMapInline : false, fromString : false, warnings : false, mangle : {}, @@ -22409,9 +23162,10 @@ exports.minify = function(files, options, name) { if (typeof options.inSourceMap == "string") { inMap = JSON.parse(rjsFile.readFile(options.inSourceMap, "utf8")); } - if (options.outSourceMap) { + if (options.outSourceMap || options.sourceMapInline) { output.source_map = SourceMap({ - file: options.outSourceMap, + // prefer outFileName, otherwise use outSourceMap without .map suffix + file: options.outFileName || (typeof options.outSourceMap === 'string' ? options.outSourceMap.replace(/\.map$/i, '') : null), orig: inMap, root: options.sourceRoot }); @@ -22430,16 +23184,19 @@ exports.minify = function(files, options, name) { var stream = OutputStream(output); toplevel.print(stream); - var mappingUrlPrefix = "\n//# sourceMappingURL="; - if (options.outSourceMap && typeof options.outSourceMap === "string" && options.sourceMapUrl !== false) { - stream += mappingUrlPrefix + (typeof options.sourceMapUrl === "string" ? options.sourceMapUrl : options.outSourceMap); - } var source_map = output.source_map; if (source_map) { source_map = source_map + ""; } + var mappingUrlPrefix = "\n//# sourceMappingURL="; + if (options.sourceMapInline) { + stream += mappingUrlPrefix + "data:application/json;charset=utf-8;base64," + new Buffer(source_map).toString("base64"); + } else if (options.outSourceMap && typeof options.outSourceMap === "string" && options.sourceMapUrl !== false) { + stream += mappingUrlPrefix + (typeof options.sourceMapUrl === "string" ? options.sourceMapUrl : options.outSourceMap); + } + return { code : stream + "", map : source_map @@ -22495,6 +23252,42 @@ exports.describe_ast = function() { return out + ""; }; +var readNameCache = function(filename, key) { + var cache = null; + if (filename) { + try { + var cache = rjsFile.readFile(filename, "utf8"); + cache = JSON.parse(cache)[key]; + if (!cache) throw "init"; + cache.props = Dictionary.fromObject(cache.props); + } catch(ex) { + cache = { + cname: -1, + props: new Dictionary() + }; + } + } + return cache; +}; + +var writeNameCache = function(filename, key, cache) { + if (filename) { + var data; + try { + data = rjsFile.readFile(filename, "utf8"); + data = JSON.parse(data); + } catch(ex) { + data = {}; + } + data[key] = { + cname: cache.cname, + props: cache.props.toObject() + }; + fs.writeFileSync(filename, JSON.stringify(data, null, 2), "utf8"); + } +}; + + }); /*jslint plusplus: true */ /*global define: false */ @@ -25327,7 +26120,8 @@ define('requirePatch', [ 'env!env/file', 'pragma', 'parse', 'lang', 'logger', 'c lang.each(depMaps, lang.bind(this, function (depMap) { if (typeof depMap === 'string') { depMap = context.makeModuleMap(depMap, - (this.map.isDefine ? this.map : this.map.parentMap)); + (this.map.isDefine ? this.map : this.map.parentMap), + false, true); } if (!context.fullExec[depMap.id]) { @@ -26918,8 +27712,7 @@ define('build', function (require) { var out = new java.io.PrintStream(java.lang.System.out, true, 'UTF-8'); out.println(content); } else if (e === 'node') { - process.stdout.setEncoding('utf8'); - process.stdout.write(content); + process.stdout.write(content, 'utf8'); } else { console.log(content); } @@ -27917,7 +28710,7 @@ function (args, quit, logger, build) { } else if (commandOption === 'v') { console.log('r.js: ' + version + ', RequireJS: ' + this.requirejsVars.require.version + - ', UglifyJS: 2.7.3'); + ', UglifyJS: 2.7.5'); } else if (commandOption === 'convert') { loadLib(); diff --git a/www/js/lib/require.js b/www/js/lib/require.js index 4db1424..0fc1082 100644 --- a/www/js/lib/require.js +++ b/www/js/lib/require.js @@ -1,5 +1,5 @@ /** vim: et:ts=4:sw=4:sts=4 - * @license RequireJS 2.3.2 Copyright jQuery Foundation and other contributors. + * @license RequireJS 2.3.3 Copyright jQuery Foundation and other contributors. * Released under MIT license, https://github.com/requirejs/requirejs/blob/master/LICENSE */ //Not using strict: uneven strict support in browsers, #392, and causes @@ -11,7 +11,7 @@ var requirejs, require, define; (function (global, setTimeout) { var req, s, head, baseElement, dataMain, src, interactiveScript, currentlyAddingScript, mainScript, subPath, - version = '2.3.2', + version = '2.3.3', commentRegExp = /\/\*[\s\S]*?\*\/|([^:"'=]|^)\/\/.*$/mg, cjsRequireRegExp = /[^.]\s*require\s*\(\s*["']([^'"\s]+)["']\s*\)/g, jsSuffixRegExp = /\.js$/, @@ -440,7 +440,9 @@ var requirejs, require, define; //Account for relative paths if there is a base name. if (name) { if (prefix) { - if (pluginModule && pluginModule.normalize) { + if (isNormalized) { + normalizedName = name; + } else if (pluginModule && pluginModule.normalize) { //Plugin is loaded, use its normalize method. normalizedName = pluginModule.normalize(name, function (name) { return normalize(name, parentName, applyMap); @@ -972,7 +974,8 @@ var requirejs, require, define; //prefix and name should already be normalized, no need //for applying map config again either. normalizedMap = makeModuleMap(map.prefix + '!' + name, - this.map.parentMap); + this.map.parentMap, + true); on(normalizedMap, 'defined', bind(this, function (value) { this.map.normalizedMap = normalizedMap; From 503482da6a9a21f3ad737c33d211893cb932bba7 Mon Sep 17 00:00:00 2001 From: jrburke Date: Thu, 20 Jul 2017 22:48:58 -0700 Subject: [PATCH 2/5] requirejs 2.3.4 --- tools/r.js | 12852 ++++++++++++++++++++-------------------- www/js/lib/require.js | 4 +- 2 files changed, 6578 insertions(+), 6278 deletions(-) diff --git a/tools/r.js b/tools/r.js index 0d3fd48..78dd250 100644 --- a/tools/r.js +++ b/tools/r.js @@ -1,5 +1,5 @@ /** - * @license r.js 2.3.3 Copyright jQuery Foundation and other contributors. + * @license r.js 2.3.4 Copyright jQuery Foundation and other contributors. * Released under MIT license, http://github.com/requirejs/r.js/LICENSE */ @@ -19,7 +19,7 @@ var requirejs, require, define, xpcUtil; (function (console, args, readFileFunc) { var fileName, env, fs, vm, path, exec, rhinoContext, dir, nodeRequire, nodeDefine, exists, reqMain, loadedOptimizedLib, existsForNode, Cc, Ci, - version = '2.3.3', + version = '2.3.4', jsSuffixRegExp = /\.js$/, commandOption = '', useLibLoaded = {}, @@ -248,7 +248,7 @@ var requirejs, require, define, xpcUtil; } /** vim: et:ts=4:sw=4:sts=4 - * @license RequireJS 2.3.3 Copyright jQuery Foundation and other contributors. + * @license RequireJS 2.3.4 Copyright jQuery Foundation and other contributors. * Released under MIT license, https://github.com/requirejs/requirejs/blob/master/LICENSE */ //Not using strict: uneven strict support in browsers, #392, and causes @@ -260,7 +260,7 @@ var requirejs, require, define, xpcUtil; (function (global, setTimeout) { var req, s, head, baseElement, dataMain, src, interactiveScript, currentlyAddingScript, mainScript, subPath, - version = '2.3.3', + version = '2.3.4', commentRegExp = /\/\*[\s\S]*?\*\/|([^:"'=]|^)\/\/.*$/mg, cjsRequireRegExp = /[^.]\s*require\s*\(\s*["']([^'"\s]+)["']\s*\)/g, jsSuffixRegExp = /\.js$/, @@ -4527,6348 +4527,6648 @@ return /******/ (function(modules) { // webpackBootstrap /* 0 */ /***/ function(module, exports, __webpack_require__) { - /* - Copyright JS Foundation and other contributors, https://js.foundation/ - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - ARE DISCLAIMED. IN NO EVENT SHALL 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 = '3.1.3'; - - -/***/ }, -/* 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('...'); - var arg = this.parsePattern(params, kind); - return this.finalize(node, new Node.RestElement(arg)); - }; - Parser.prototype.parseArrayPattern = function (params, kind) { - var node = this.createNode(); - this.expect('['); - var elements = []; - while (!this.match(']')) { - if (this.match(',')) { - this.nextToken(); - elements.push(null); - } - else { - if (this.match('...')) { - elements.push(this.parseBindingRestElement(params, kind)); - break; - } - else { - elements.push(this.parsePatternWithDefault(params, kind)); - } - if (!this.match(']')) { - this.expect(','); - } - } - } - this.expect(']'); - return this.finalize(node, new Node.ArrayPattern(elements)); - }; - Parser.prototype.parsePropertyPattern = function (params, kind) { - var node = this.createNode(); - var computed = false; - var shorthand = false; - var method = false; - var key; - var value; - if (this.lookahead.type === 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.expect('...'); - var arg = this.parsePattern(params); - if (this.match('=')) { - this.throwError(messages_1.Messages.DefaultRestParameter); - } - if (!this.match(')')) { - this.throwError(messages_1.Messages.ParameterAfterRestParameter); - } - return this.finalize(node, new Node.RestElement(arg)); - }; - Parser.prototype.parseFormalParameter = function (options) { - var params = []; - var param = this.match('...') ? this.parseRestElement(params) : this.parsePatternWithDefault(params); - for (var i = 0; i < params.length; i++) { - this.validateParam(options, params[i], params[i].value); - } - options.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.isStartOfExpression = function () { - var start = true; - var value = this.lookahead.value; - switch (this.lookahead.type) { - case token_1.Token.Punctuator: - start = (value === '[') || (value === '(') || (value === '{') || - (value === '+') || (value === '-') || - (value === '!') || (value === '~') || - (value === '++') || (value === '--') || - (value === '/') || (value === '/='); // regular expression literal - break; - case token_1.Token.Keyword: - start = (value === 'class') || (value === 'delete') || - (value === 'function') || (value === 'let') || (value === 'new') || - (value === 'super') || (value === 'this') || (value === 'typeof') || - (value === 'void') || (value === 'yield'); - break; - default: - break; - } - return start; - }; - Parser.prototype.parseYieldExpression = function () { - var node = this.createNode(); - this.expectKeyword('yield'); - var argument = null; - var delegate = false; - if (!this.hasLineTerminator) { - var previousAllowYield = this.context.allowYield; - this.context.allowYield = false; - delegate = this.match('*'); - if (delegate) { - this.nextToken(); - argument = this.parseAssignmentExpression(); - } - else if (this.isStartOfExpression()) { - argument = this.parseAssignmentExpression(); - } - this.context.allowYield = previousAllowYield; - } - return this.finalize(node, new Node.YieldExpression(argument, delegate)); - }; - // 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 imported; - var local; - if (this.lookahead.type === token_1.Token.Identifier) { - imported = this.parseVariableIdentifier(); - local = imported; - if (this.matchContextualKeyword('as')) { - this.nextToken(); - local = this.parseVariableIdentifier(); - } - } - else { - imported = this.parseIdentifierName(); - local = imported; - if (this.matchContextualKeyword('as')) { - this.nextToken(); - local = this.parseVariableIdentifier(); - } - else { - this.throwUnexpectedToken(this.nextToken()); - } - } - return this.finalize(node, new Node.ImportSpecifier(local, imported)); - }; - // {foo, bar as bas} - Parser.prototype.parseNamedImports = function () { - this.expect('{'); - var specifiers = []; - while (!this.match('}')) { - specifiers.push(this.parseImportSpecifier()); - if (!this.match('}')) { - this.expect(','); - } - } - this.expect('}'); - return specifiers; - }; - // import ...; - 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; + "use strict"; + /* + Copyright JS Foundation and other contributors, https://js.foundation/ + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + Object.defineProperty(exports, "__esModule", { value: true }); + var comment_handler_1 = __webpack_require__(1); + var jsx_parser_1 = __webpack_require__(3); + var parser_1 = __webpack_require__(8); + var tokenizer_1 = __webpack_require__(15); + function parse(code, options, delegate) { + var commentHandler = null; + var proxyDelegate = function (node, metadata) { + if (delegate) { + delegate(node, metadata); + } + if (commentHandler) { + commentHandler.visit(node, metadata); + } + }; + var parserDelegate = (typeof delegate === 'function') ? proxyDelegate : null; + var collectComment = false; + if (options) { + collectComment = (typeof options.comment === 'boolean' && options.comment); + var attachComment = (typeof options.attachComment === 'boolean' && options.attachComment); + if (collectComment || attachComment) { + commentHandler = new comment_handler_1.CommentHandler(); + commentHandler.attach = attachComment; + options.comment = true; + parserDelegate = proxyDelegate; + } + } + var isModule = false; + if (options && typeof options.sourceType === 'string') { + isModule = (options.sourceType === 'module'); + } + var parser; + if (options && typeof options.jsx === 'boolean' && options.jsx) { + parser = new jsx_parser_1.JSXParser(code, options, parserDelegate); + } + else { + parser = new parser_1.Parser(code, options, parserDelegate); + } + var program = isModule ? parser.parseModule() : parser.parseScript(); + var ast = program; + if (collectComment && commentHandler) { + ast.comments = commentHandler.comments; + } + if (parser.config.tokens) { + ast.tokens = parser.tokens; + } + if (parser.config.tolerant) { + ast.errors = parser.errorHandler.errors; + } + return ast; + } + exports.parse = parse; + function parseModule(code, options, delegate) { + var parsingOptions = options || {}; + parsingOptions.sourceType = 'module'; + return parse(code, parsingOptions, delegate); + } + exports.parseModule = parseModule; + function parseScript(code, options, delegate) { + var parsingOptions = options || {}; + parsingOptions.sourceType = 'script'; + return parse(code, parsingOptions, delegate); + } + exports.parseScript = parseScript; + function tokenize(code, options, delegate) { + var tokenizer = new tokenizer_1.Tokenizer(code, options); + var tokens; + tokens = []; + try { + while (true) { + var token = tokenizer.getNextToken(); + if (!token) { + break; + } + if (delegate) { + token = delegate(token); + } + tokens.push(token); + } + } + catch (e) { + tokenizer.errorHandler.tolerate(e); + } + if (tokenizer.errorHandler.tolerant) { + tokens.errors = tokenizer.errors(); + } + return tokens; + } + exports.tokenize = tokenize; + var syntax_1 = __webpack_require__(2); + exports.Syntax = syntax_1.Syntax; + // Sync with *.json manifests. + exports.version = '4.0.0'; + + +/***/ }, +/* 1 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + var syntax_1 = __webpack_require__(2); + var CommentHandler = (function () { + function CommentHandler() { + this.attach = false; + this.comments = []; + this.stack = []; + this.leading = []; + this.trailing = []; + } + CommentHandler.prototype.insertInnerComments = function (node, metadata) { + // innnerComments for properties empty block + // `function a() {/** comments **\/}` + if (node.type === syntax_1.Syntax.BlockStatement && node.body.length === 0) { + var innerComments = []; + for (var i = this.leading.length - 1; i >= 0; --i) { + var entry = this.leading[i]; + if (metadata.end.offset >= entry.start) { + innerComments.unshift(entry.comment); + this.leading.splice(i, 1); + this.trailing.splice(i, 1); + } + } + if (innerComments.length) { + node.innerComments = innerComments; + } + } + }; + CommentHandler.prototype.findTrailingComments = function (metadata) { + var trailingComments = []; + if (this.trailing.length > 0) { + for (var i = this.trailing.length - 1; i >= 0; --i) { + var entry_1 = this.trailing[i]; + if (entry_1.start >= metadata.end.offset) { + trailingComments.unshift(entry_1.comment); + } + } + this.trailing.length = 0; + return trailingComments; + } + var entry = this.stack[this.stack.length - 1]; + if (entry && entry.node.trailingComments) { + var firstComment = entry.node.trailingComments[0]; + if (firstComment && firstComment.range[0] >= metadata.end.offset) { + trailingComments = entry.node.trailingComments; + delete entry.node.trailingComments; + } + } + return trailingComments; + }; + CommentHandler.prototype.findLeadingComments = function (metadata) { + var leadingComments = []; + var target; + while (this.stack.length > 0) { + var entry = this.stack[this.stack.length - 1]; + if (entry && entry.start >= metadata.start.offset) { + target = entry.node; + this.stack.pop(); + } + else { + break; + } + } + if (target) { + var count = target.leadingComments ? target.leadingComments.length : 0; + for (var i = count - 1; i >= 0; --i) { + var comment = target.leadingComments[i]; + if (comment.range[1] <= metadata.start.offset) { + leadingComments.unshift(comment); + target.leadingComments.splice(i, 1); + } + } + if (target.leadingComments && target.leadingComments.length === 0) { + delete target.leadingComments; + } + return leadingComments; + } + for (var i = this.leading.length - 1; i >= 0; --i) { + var entry = this.leading[i]; + if (entry.start <= metadata.start.offset) { + leadingComments.unshift(entry.comment); + this.leading.splice(i, 1); + } + } + return leadingComments; + }; + CommentHandler.prototype.visitNode = function (node, metadata) { + if (node.type === syntax_1.Syntax.Program && node.body.length > 0) { + return; + } + this.insertInnerComments(node, metadata); + var trailingComments = this.findTrailingComments(metadata); + var leadingComments = this.findLeadingComments(metadata); + if (leadingComments.length > 0) { + node.leadingComments = leadingComments; + } + if (trailingComments.length > 0) { + node.trailingComments = trailingComments; + } + this.stack.push({ + node: node, + start: metadata.start.offset + }); + }; + CommentHandler.prototype.visitComment = function (node, metadata) { + var type = (node.type[0] === 'L') ? 'Line' : 'Block'; + var comment = { + type: type, + value: node.value + }; + if (node.range) { + comment.range = node.range; + } + if (node.loc) { + comment.loc = node.loc; + } + this.comments.push(comment); + if (this.attach) { + var entry = { + comment: { + type: type, + value: node.value, + range: [metadata.start.offset, metadata.end.offset] + }, + start: metadata.start.offset + }; + if (node.loc) { + entry.comment.loc = node.loc; + } + node.type = type; + this.leading.push(entry); + this.trailing.push(entry); + } + }; + CommentHandler.prototype.visit = function (node, metadata) { + if (node.type === 'LineComment') { + this.visitComment(node, metadata); + } + else if (node.type === 'BlockComment') { + this.visitComment(node, metadata); + } + else if (this.attach) { + this.visitNode(node, metadata); + } + }; + return CommentHandler; + }()); + exports.CommentHandler = CommentHandler; + + +/***/ }, +/* 2 */ +/***/ function(module, exports) { + + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + exports.Syntax = { + AssignmentExpression: 'AssignmentExpression', + AssignmentPattern: 'AssignmentPattern', + ArrayExpression: 'ArrayExpression', + ArrayPattern: 'ArrayPattern', + ArrowFunctionExpression: 'ArrowFunctionExpression', + AwaitExpression: 'AwaitExpression', + BlockStatement: 'BlockStatement', + BinaryExpression: 'BinaryExpression', + BreakStatement: 'BreakStatement', + CallExpression: 'CallExpression', + CatchClause: 'CatchClause', + ClassBody: 'ClassBody', + ClassDeclaration: 'ClassDeclaration', + ClassExpression: 'ClassExpression', + ConditionalExpression: 'ConditionalExpression', + ContinueStatement: 'ContinueStatement', + DoWhileStatement: 'DoWhileStatement', + DebuggerStatement: 'DebuggerStatement', + EmptyStatement: 'EmptyStatement', + ExportAllDeclaration: 'ExportAllDeclaration', + ExportDefaultDeclaration: 'ExportDefaultDeclaration', + ExportNamedDeclaration: 'ExportNamedDeclaration', + ExportSpecifier: 'ExportSpecifier', + ExpressionStatement: 'ExpressionStatement', + ForStatement: 'ForStatement', + ForOfStatement: 'ForOfStatement', + ForInStatement: 'ForInStatement', + FunctionDeclaration: 'FunctionDeclaration', + FunctionExpression: 'FunctionExpression', + Identifier: 'Identifier', + IfStatement: 'IfStatement', + ImportDeclaration: 'ImportDeclaration', + ImportDefaultSpecifier: 'ImportDefaultSpecifier', + ImportNamespaceSpecifier: 'ImportNamespaceSpecifier', + ImportSpecifier: 'ImportSpecifier', + Literal: 'Literal', + LabeledStatement: 'LabeledStatement', + LogicalExpression: 'LogicalExpression', + MemberExpression: 'MemberExpression', + MetaProperty: 'MetaProperty', + MethodDefinition: 'MethodDefinition', + NewExpression: 'NewExpression', + ObjectExpression: 'ObjectExpression', + ObjectPattern: 'ObjectPattern', + Program: 'Program', + Property: 'Property', + RestElement: 'RestElement', + ReturnStatement: 'ReturnStatement', + SequenceExpression: 'SequenceExpression', + SpreadElement: 'SpreadElement', + Super: 'Super', + SwitchCase: 'SwitchCase', + SwitchStatement: 'SwitchStatement', + TaggedTemplateExpression: 'TaggedTemplateExpression', + TemplateElement: 'TemplateElement', + TemplateLiteral: 'TemplateLiteral', + ThisExpression: 'ThisExpression', + ThrowStatement: 'ThrowStatement', + TryStatement: 'TryStatement', + UnaryExpression: 'UnaryExpression', + UpdateExpression: 'UpdateExpression', + VariableDeclaration: 'VariableDeclaration', + VariableDeclarator: 'VariableDeclarator', + WhileStatement: 'WhileStatement', + WithStatement: 'WithStatement', + YieldExpression: 'YieldExpression' + }; + + +/***/ }, +/* 3 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; +/* istanbul ignore next */ + var __extends = (this && this.__extends) || (function () { + var extendStatics = Object.setPrototypeOf || + ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) || + function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; }; + return function (d, b) { + extendStatics(d, b); + function __() { this.constructor = d; } + d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); + }; + })(); + Object.defineProperty(exports, "__esModule", { value: true }); + var character_1 = __webpack_require__(4); + var JSXNode = __webpack_require__(5); + var jsx_syntax_1 = __webpack_require__(6); + var Node = __webpack_require__(7); + var parser_1 = __webpack_require__(8); + var token_1 = __webpack_require__(13); + var xhtml_entities_1 = __webpack_require__(14); + token_1.TokenName[100 /* Identifier */] = 'JSXIdentifier'; + token_1.TokenName[101 /* Text */] = 'JSXText'; + // Fully qualified element name, e.g. returns "svg:path" + function getQualifiedElementName(elementName) { + var qualifiedName; + switch (elementName.type) { + case jsx_syntax_1.JSXSyntax.JSXIdentifier: + var id = elementName; + qualifiedName = id.name; + break; + case jsx_syntax_1.JSXSyntax.JSXNamespacedName: + var ns = elementName; + qualifiedName = getQualifiedElementName(ns.namespace) + ':' + + getQualifiedElementName(ns.name); + break; + case jsx_syntax_1.JSXSyntax.JSXMemberExpression: + var expr = elementName; + qualifiedName = getQualifiedElementName(expr.object) + '.' + + getQualifiedElementName(expr.property); + break; + /* istanbul ignore next */ + default: + break; + } + return qualifiedName; + } + var JSXParser = (function (_super) { + __extends(JSXParser, _super); + function JSXParser(code, options, delegate) { + return _super.call(this, code, options, delegate) || this; + } + JSXParser.prototype.parsePrimaryExpression = function () { + return this.match('<') ? this.parseJSXRoot() : _super.prototype.parsePrimaryExpression.call(this); + }; + JSXParser.prototype.startJSX = function () { + // Unwind the scanner before the lookahead token. + this.scanner.index = this.startMarker.index; + this.scanner.lineNumber = this.startMarker.line; + this.scanner.lineStart = this.startMarker.index - this.startMarker.column; + }; + JSXParser.prototype.finishJSX = function () { + // Prime the next lookahead. + this.nextToken(); + }; + JSXParser.prototype.reenterJSX = function () { + this.startJSX(); + this.expectJSX('}'); + // Pop the closing '}' added from the lookahead. + if (this.config.tokens) { + this.tokens.pop(); + } + }; + JSXParser.prototype.createJSXNode = function () { + this.collectComments(); + return { + index: this.scanner.index, + line: this.scanner.lineNumber, + column: this.scanner.index - this.scanner.lineStart + }; + }; + JSXParser.prototype.createJSXChildNode = function () { + return { + index: this.scanner.index, + line: this.scanner.lineNumber, + column: this.scanner.index - this.scanner.lineStart + }; + }; + JSXParser.prototype.scanXHTMLEntity = function (quote) { + var result = '&'; + var valid = true; + var terminated = false; + var numeric = false; + var hex = false; + while (!this.scanner.eof() && valid && !terminated) { + var ch = this.scanner.source[this.scanner.index]; + if (ch === quote) { + break; + } + terminated = (ch === ';'); + result += ch; + ++this.scanner.index; + if (!terminated) { + switch (result.length) { + case 2: + // e.g. '{' + numeric = (ch === '#'); + break; + case 3: + if (numeric) { + // e.g. 'A' + hex = (ch === 'x'); + valid = hex || character_1.Character.isDecimalDigit(ch.charCodeAt(0)); + numeric = numeric && !hex; + } + break; + default: + valid = valid && !(numeric && !character_1.Character.isDecimalDigit(ch.charCodeAt(0))); + valid = valid && !(hex && !character_1.Character.isHexDigit(ch.charCodeAt(0))); + break; + } + } + } + if (valid && terminated && result.length > 2) { + // e.g. 'A' becomes just '#x41' + var str = result.substr(1, result.length - 2); + if (numeric && str.length > 1) { + result = String.fromCharCode(parseInt(str.substr(1), 10)); + } + else if (hex && str.length > 2) { + result = String.fromCharCode(parseInt('0' + str.substr(1), 16)); + } + else if (!numeric && !hex && xhtml_entities_1.XHTMLEntities[str]) { + result = xhtml_entities_1.XHTMLEntities[str]; + } + } + return result; + }; + // Scan the next JSX token. This replaces Scanner#lex when in JSX mode. + JSXParser.prototype.lexJSX = function () { + var cp = this.scanner.source.charCodeAt(this.scanner.index); + // < > / : = { } + if (cp === 60 || cp === 62 || cp === 47 || cp === 58 || cp === 61 || cp === 123 || cp === 125) { + var value = this.scanner.source[this.scanner.index++]; + return { + type: 7 /* Punctuator */, + value: value, + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: this.scanner.index - 1, + end: this.scanner.index + }; + } + // " ' + if (cp === 34 || cp === 39) { + var start = this.scanner.index; + var quote = this.scanner.source[this.scanner.index++]; + var str = ''; + while (!this.scanner.eof()) { + var ch = this.scanner.source[this.scanner.index++]; + if (ch === quote) { + break; + } + else if (ch === '&') { + str += this.scanXHTMLEntity(quote); + } + else { + str += ch; + } + } + return { + type: 8 /* StringLiteral */, + value: str, + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: start, + end: this.scanner.index + }; + } + // ... or . + if (cp === 46) { + var n1 = this.scanner.source.charCodeAt(this.scanner.index + 1); + var n2 = this.scanner.source.charCodeAt(this.scanner.index + 2); + var value = (n1 === 46 && n2 === 46) ? '...' : '.'; + var start = this.scanner.index; + this.scanner.index += value.length; + return { + type: 7 /* Punctuator */, + value: value, + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: start, + end: this.scanner.index + }; + } + // ` + if (cp === 96) { + // Only placeholder, since it will be rescanned as a real assignment expression. + return { + type: 10 /* Template */, + value: '', + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: this.scanner.index, + end: this.scanner.index + }; + } + // Identifer can not contain backslash (char code 92). + if (character_1.Character.isIdentifierStart(cp) && (cp !== 92)) { + var start = this.scanner.index; + ++this.scanner.index; + while (!this.scanner.eof()) { + var ch = this.scanner.source.charCodeAt(this.scanner.index); + if (character_1.Character.isIdentifierPart(ch) && (ch !== 92)) { + ++this.scanner.index; + } + else if (ch === 45) { + // Hyphen (char code 45) can be part of an identifier. + ++this.scanner.index; + } + else { + break; + } + } + var id = this.scanner.source.slice(start, this.scanner.index); + return { + type: 100 /* Identifier */, + value: id, + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: start, + end: this.scanner.index + }; + } + return this.scanner.lex(); + }; + JSXParser.prototype.nextJSXToken = function () { + this.collectComments(); + this.startMarker.index = this.scanner.index; + this.startMarker.line = this.scanner.lineNumber; + this.startMarker.column = this.scanner.index - this.scanner.lineStart; + var token = this.lexJSX(); + this.lastMarker.index = this.scanner.index; + this.lastMarker.line = this.scanner.lineNumber; + this.lastMarker.column = this.scanner.index - this.scanner.lineStart; + if (this.config.tokens) { + this.tokens.push(this.convertToken(token)); + } + return token; + }; + JSXParser.prototype.nextJSXText = function () { + this.startMarker.index = this.scanner.index; + this.startMarker.line = this.scanner.lineNumber; + this.startMarker.column = this.scanner.index - this.scanner.lineStart; + var start = this.scanner.index; + var text = ''; + while (!this.scanner.eof()) { + var ch = this.scanner.source[this.scanner.index]; + if (ch === '{' || ch === '<') { + break; + } + ++this.scanner.index; + text += ch; + if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) { + ++this.scanner.lineNumber; + if (ch === '\r' && this.scanner.source[this.scanner.index] === '\n') { + ++this.scanner.index; + } + this.scanner.lineStart = this.scanner.index; + } + } + this.lastMarker.index = this.scanner.index; + this.lastMarker.line = this.scanner.lineNumber; + this.lastMarker.column = this.scanner.index - this.scanner.lineStart; + var token = { + type: 101 /* Text */, + value: text, + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: start, + end: this.scanner.index + }; + if ((text.length > 0) && this.config.tokens) { + this.tokens.push(this.convertToken(token)); + } + return token; + }; + JSXParser.prototype.peekJSXToken = function () { + var state = this.scanner.saveState(); + this.scanner.scanComments(); + var next = this.lexJSX(); + this.scanner.restoreState(state); + return next; + }; + // Expect the next JSX token to match the specified punctuator. + // If not, an exception will be thrown. + JSXParser.prototype.expectJSX = function (value) { + var token = this.nextJSXToken(); + if (token.type !== 7 /* Punctuator */ || token.value !== value) { + this.throwUnexpectedToken(token); + } + }; + // Return true if the next JSX token matches the specified punctuator. + JSXParser.prototype.matchJSX = function (value) { + var next = this.peekJSXToken(); + return next.type === 7 /* Punctuator */ && next.value === value; + }; + JSXParser.prototype.parseJSXIdentifier = function () { + var node = this.createJSXNode(); + var token = this.nextJSXToken(); + if (token.type !== 100 /* Identifier */) { + this.throwUnexpectedToken(token); + } + return this.finalize(node, new JSXNode.JSXIdentifier(token.value)); + }; + JSXParser.prototype.parseJSXElementName = function () { + var node = this.createJSXNode(); + var elementName = this.parseJSXIdentifier(); + if (this.matchJSX(':')) { + var namespace = elementName; + this.expectJSX(':'); + var name_1 = this.parseJSXIdentifier(); + elementName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_1)); + } + else if (this.matchJSX('.')) { + while (this.matchJSX('.')) { + var object = elementName; + this.expectJSX('.'); + var property = this.parseJSXIdentifier(); + elementName = this.finalize(node, new JSXNode.JSXMemberExpression(object, property)); + } + } + return elementName; + }; + JSXParser.prototype.parseJSXAttributeName = function () { + var node = this.createJSXNode(); + var attributeName; + var identifier = this.parseJSXIdentifier(); + if (this.matchJSX(':')) { + var namespace = identifier; + this.expectJSX(':'); + var name_2 = this.parseJSXIdentifier(); + attributeName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_2)); + } + else { + attributeName = identifier; + } + return attributeName; + }; + JSXParser.prototype.parseJSXStringLiteralAttribute = function () { + var node = this.createJSXNode(); + var token = this.nextJSXToken(); + if (token.type !== 8 /* StringLiteral */) { + this.throwUnexpectedToken(token); + } + var raw = this.getTokenRaw(token); + return this.finalize(node, new Node.Literal(token.value, raw)); + }; + JSXParser.prototype.parseJSXExpressionAttribute = function () { + var node = this.createJSXNode(); + this.expectJSX('{'); + this.finishJSX(); + if (this.match('}')) { + this.tolerateError('JSX attributes must only be assigned a non-empty expression'); + } + var expression = this.parseAssignmentExpression(); + this.reenterJSX(); + return this.finalize(node, new JSXNode.JSXExpressionContainer(expression)); + }; + JSXParser.prototype.parseJSXAttributeValue = function () { + return this.matchJSX('{') ? this.parseJSXExpressionAttribute() : + this.matchJSX('<') ? this.parseJSXElement() : this.parseJSXStringLiteralAttribute(); + }; + JSXParser.prototype.parseJSXNameValueAttribute = function () { + var node = this.createJSXNode(); + var name = this.parseJSXAttributeName(); + var value = null; + if (this.matchJSX('=')) { + this.expectJSX('='); + value = this.parseJSXAttributeValue(); + } + return this.finalize(node, new JSXNode.JSXAttribute(name, value)); + }; + JSXParser.prototype.parseJSXSpreadAttribute = function () { + var node = this.createJSXNode(); + this.expectJSX('{'); + this.expectJSX('...'); + this.finishJSX(); + var argument = this.parseAssignmentExpression(); + this.reenterJSX(); + return this.finalize(node, new JSXNode.JSXSpreadAttribute(argument)); + }; + JSXParser.prototype.parseJSXAttributes = function () { + var attributes = []; + while (!this.matchJSX('/') && !this.matchJSX('>')) { + var attribute = this.matchJSX('{') ? this.parseJSXSpreadAttribute() : + this.parseJSXNameValueAttribute(); + attributes.push(attribute); + } + return attributes; + }; + JSXParser.prototype.parseJSXOpeningElement = function () { + var node = this.createJSXNode(); + this.expectJSX('<'); + var name = this.parseJSXElementName(); + var attributes = this.parseJSXAttributes(); + var selfClosing = this.matchJSX('/'); + if (selfClosing) { + this.expectJSX('/'); + } + this.expectJSX('>'); + return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes)); + }; + JSXParser.prototype.parseJSXBoundaryElement = function () { + var node = this.createJSXNode(); + this.expectJSX('<'); + if (this.matchJSX('/')) { + this.expectJSX('/'); + var name_3 = this.parseJSXElementName(); + this.expectJSX('>'); + return this.finalize(node, new JSXNode.JSXClosingElement(name_3)); + } + var name = this.parseJSXElementName(); + var attributes = this.parseJSXAttributes(); + var selfClosing = this.matchJSX('/'); + if (selfClosing) { + this.expectJSX('/'); + } + this.expectJSX('>'); + return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes)); + }; + JSXParser.prototype.parseJSXEmptyExpression = function () { + var node = this.createJSXChildNode(); + this.collectComments(); + this.lastMarker.index = this.scanner.index; + this.lastMarker.line = this.scanner.lineNumber; + this.lastMarker.column = this.scanner.index - this.scanner.lineStart; + return this.finalize(node, new JSXNode.JSXEmptyExpression()); + }; + JSXParser.prototype.parseJSXExpressionContainer = function () { + var node = this.createJSXNode(); + this.expectJSX('{'); + var expression; + if (this.matchJSX('}')) { + expression = this.parseJSXEmptyExpression(); + this.expectJSX('}'); + } + else { + this.finishJSX(); + expression = this.parseAssignmentExpression(); + this.reenterJSX(); + } + return this.finalize(node, new JSXNode.JSXExpressionContainer(expression)); + }; + JSXParser.prototype.parseJSXChildren = function () { + var children = []; + while (!this.scanner.eof()) { + var node = this.createJSXChildNode(); + var token = this.nextJSXText(); + if (token.start < token.end) { + var raw = this.getTokenRaw(token); + var child = this.finalize(node, new JSXNode.JSXText(token.value, raw)); + children.push(child); + } + if (this.scanner.source[this.scanner.index] === '{') { + var container = this.parseJSXExpressionContainer(); + children.push(container); + } + else { + break; + } + } + return children; + }; + JSXParser.prototype.parseComplexJSXElement = function (el) { + var stack = []; + while (!this.scanner.eof()) { + el.children = el.children.concat(this.parseJSXChildren()); + var node = this.createJSXChildNode(); + var element = this.parseJSXBoundaryElement(); + if (element.type === jsx_syntax_1.JSXSyntax.JSXOpeningElement) { + var opening = element; + if (opening.selfClosing) { + var child = this.finalize(node, new JSXNode.JSXElement(opening, [], null)); + el.children.push(child); + } + else { + stack.push(el); + el = { node: node, opening: opening, closing: null, children: [] }; + } + } + if (element.type === jsx_syntax_1.JSXSyntax.JSXClosingElement) { + el.closing = element; + var open_1 = getQualifiedElementName(el.opening.name); + var close_1 = getQualifiedElementName(el.closing.name); + if (open_1 !== close_1) { + this.tolerateError('Expected corresponding JSX closing tag for %0', open_1); + } + if (stack.length > 0) { + var child = this.finalize(el.node, new JSXNode.JSXElement(el.opening, el.children, el.closing)); + el = stack[stack.length - 1]; + el.children.push(child); + stack.pop(); + } + else { + break; + } + } + } + return el; + }; + JSXParser.prototype.parseJSXElement = function () { + var node = this.createJSXNode(); + var opening = this.parseJSXOpeningElement(); + var children = []; + var closing = null; + if (!opening.selfClosing) { + var el = this.parseComplexJSXElement({ node: node, opening: opening, closing: closing, children: children }); + children = el.children; + closing = el.closing; + } + return this.finalize(node, new JSXNode.JSXElement(opening, children, closing)); + }; + JSXParser.prototype.parseJSXRoot = function () { + // Pop the opening '<' added from the lookahead. + if (this.config.tokens) { + this.tokens.pop(); + } + this.startJSX(); + var element = this.parseJSXElement(); + this.finishJSX(); + return element; + }; + JSXParser.prototype.isStartOfExpression = function () { + return _super.prototype.isStartOfExpression.call(this) || this.match('<'); + }; + return JSXParser; + }(parser_1.Parser)); + exports.JSXParser = JSXParser; /***/ }, /* 4 */ /***/ function(module, exports) { - // 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; + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + // See also tools/generate-unicode-regex.js. + var Regex = { + // Unicode v8.0.0 NonAsciiIdentifierStart: + NonAsciiIdentifierStart: /[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0-\u08B4\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0AF9\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D\u0C58-\u0C5A\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D5F-\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2118-\u211D\u2124\u2126\u2128\u212A-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309B-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FD5\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA69D\uA6A0-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA7AD\uA7B0-\uA7B7\uA7F7-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA8FD\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uA9E0-\uA9E4\uA9E6-\uA9EF\uA9FA-\uA9FE\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA7E-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB65\uAB70-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-\uDD74\uDE80-\uDE9C\uDEA0-\uDED0\uDF00-\uDF1F\uDF30-\uDF4A\uDF50-\uDF75\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|\uD801[\uDC00-\uDC9D\uDD00-\uDD27\uDD30-\uDD63\uDE00-\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-\uDC76\uDC80-\uDC9E\uDCE0-\uDCF2\uDCF4\uDCF5\uDD00-\uDD15\uDD20-\uDD39\uDD80-\uDDB7\uDDBE\uDDBF\uDE00\uDE10-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE60-\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE4\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48\uDC80-\uDCB2\uDCC0-\uDCF2]|\uD804[\uDC03-\uDC37\uDC83-\uDCAF\uDCD0-\uDCE8\uDD03-\uDD26\uDD50-\uDD72\uDD76\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+ // Unicode v8.0.0 NonAsciiIdentifierPart: + NonAsciiIdentifierPart: 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+ }; + exports.Character = { + /* tslint:disable:no-bitwise */ + fromCodePoint: function (cp) { + return (cp < 0x10000) ? String.fromCharCode(cp) : + String.fromCharCode(0xD800 + ((cp - 0x10000) >> 10)) + + String.fromCharCode(0xDC00 + ((cp - 0x10000) & 1023)); + }, + // https://tc39.github.io/ecma262/#sec-white-space + isWhiteSpace: function (cp) { + return (cp === 0x20) || (cp === 0x09) || (cp === 0x0B) || (cp === 0x0C) || (cp === 0xA0) || + (cp >= 0x1680 && [0x1680, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(cp) >= 0); + }, + // https://tc39.github.io/ecma262/#sec-line-terminators + isLineTerminator: function (cp) { + return (cp === 0x0A) || (cp === 0x0D) || (cp === 0x2028) || (cp === 0x2029); + }, + // https://tc39.github.io/ecma262/#sec-names-and-keywords + isIdentifierStart: function (cp) { + return (cp === 0x24) || (cp === 0x5F) || + (cp >= 0x41 && cp <= 0x5A) || + (cp >= 0x61 && cp <= 0x7A) || + (cp === 0x5C) || + ((cp >= 0x80) && Regex.NonAsciiIdentifierStart.test(exports.Character.fromCodePoint(cp))); + }, + isIdentifierPart: function (cp) { + return (cp === 0x24) || (cp === 0x5F) || + (cp >= 0x41 && cp <= 0x5A) || + (cp >= 0x61 && cp <= 0x7A) || + (cp >= 0x30 && cp <= 0x39) || + (cp === 0x5C) || + ((cp >= 0x80) && Regex.NonAsciiIdentifierPart.test(exports.Character.fromCodePoint(cp))); + }, + // https://tc39.github.io/ecma262/#sec-literals-numeric-literals + isDecimalDigit: function (cp) { + return (cp >= 0x30 && cp <= 0x39); // 0..9 + }, + isHexDigit: function (cp) { + return (cp >= 0x30 && cp <= 0x39) || + (cp >= 0x41 && cp <= 0x46) || + (cp >= 0x61 && cp <= 0x66); // a..f + }, + isOctalDigit: function (cp) { + return (cp >= 0x30 && cp <= 0x37); // 0..7 + } + }; /***/ }, /* 5 */ -/***/ function(module, exports) { +/***/ function(module, exports, __webpack_require__) { - "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 =', - 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' - }; + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + var jsx_syntax_1 = __webpack_require__(6); + /* tslint:disable:max-classes-per-file */ + var JSXClosingElement = (function () { + function JSXClosingElement(name) { + this.type = jsx_syntax_1.JSXSyntax.JSXClosingElement; + this.name = name; + } + return JSXClosingElement; + }()); + exports.JSXClosingElement = JSXClosingElement; + var JSXElement = (function () { + function JSXElement(openingElement, children, closingElement) { + this.type = jsx_syntax_1.JSXSyntax.JSXElement; + this.openingElement = openingElement; + this.children = children; + this.closingElement = closingElement; + } + return JSXElement; + }()); + exports.JSXElement = JSXElement; + var JSXEmptyExpression = (function () { + function JSXEmptyExpression() { + this.type = jsx_syntax_1.JSXSyntax.JSXEmptyExpression; + } + return JSXEmptyExpression; + }()); + exports.JSXEmptyExpression = JSXEmptyExpression; + var JSXExpressionContainer = (function () { + function JSXExpressionContainer(expression) { + this.type = jsx_syntax_1.JSXSyntax.JSXExpressionContainer; + this.expression = expression; + } + return JSXExpressionContainer; + }()); + exports.JSXExpressionContainer = JSXExpressionContainer; + var JSXIdentifier = (function () { + function JSXIdentifier(name) { + this.type = jsx_syntax_1.JSXSyntax.JSXIdentifier; + this.name = name; + } + return JSXIdentifier; + }()); + exports.JSXIdentifier = JSXIdentifier; + var JSXMemberExpression = (function () { + function JSXMemberExpression(object, property) { + this.type = jsx_syntax_1.JSXSyntax.JSXMemberExpression; + this.object = object; + this.property = property; + } + return JSXMemberExpression; + }()); + exports.JSXMemberExpression = JSXMemberExpression; + var JSXAttribute = (function () { + function JSXAttribute(name, value) { + this.type = jsx_syntax_1.JSXSyntax.JSXAttribute; + this.name = name; + this.value = value; + } + return JSXAttribute; + }()); + exports.JSXAttribute = JSXAttribute; + var JSXNamespacedName = (function () { + function JSXNamespacedName(namespace, name) { + this.type = jsx_syntax_1.JSXSyntax.JSXNamespacedName; + this.namespace = namespace; + this.name = name; + } + return JSXNamespacedName; + }()); + exports.JSXNamespacedName = JSXNamespacedName; + var JSXOpeningElement = (function () { + function JSXOpeningElement(name, selfClosing, attributes) { + this.type = jsx_syntax_1.JSXSyntax.JSXOpeningElement; + this.name = name; + this.selfClosing = selfClosing; + this.attributes = attributes; + } + return JSXOpeningElement; + }()); + exports.JSXOpeningElement = JSXOpeningElement; + var JSXSpreadAttribute = (function () { + function JSXSpreadAttribute(argument) { + this.type = jsx_syntax_1.JSXSyntax.JSXSpreadAttribute; + this.argument = argument; + } + return JSXSpreadAttribute; + }()); + exports.JSXSpreadAttribute = JSXSpreadAttribute; + var JSXText = (function () { + function JSXText(value, raw) { + this.type = jsx_syntax_1.JSXSyntax.JSXText; + this.value = value; + this.raw = raw; + } + return JSXText; + }()); + exports.JSXText = JSXText; /***/ }, /* 6 */ /***/ function(module, exports) { - "use strict"; - 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; + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + exports.JSXSyntax = { + JSXAttribute: 'JSXAttribute', + JSXClosingElement: 'JSXClosingElement', + JSXElement: 'JSXElement', + JSXEmptyExpression: 'JSXEmptyExpression', + JSXExpressionContainer: 'JSXExpressionContainer', + JSXIdentifier: 'JSXIdentifier', + JSXMemberExpression: 'JSXMemberExpression', + JSXNamespacedName: 'JSXNamespacedName', + JSXOpeningElement: 'JSXOpeningElement', + JSXSpreadAttribute: 'JSXSpreadAttribute', + JSXText: 'JSXText' + }; /***/ }, /* 7 */ -/***/ function(module, exports) { +/***/ function(module, exports, __webpack_require__) { - "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'; + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + var syntax_1 = __webpack_require__(2); + /* tslint:disable:max-classes-per-file */ + var ArrayExpression = (function () { + function ArrayExpression(elements) { + this.type = syntax_1.Syntax.ArrayExpression; + this.elements = elements; + } + return ArrayExpression; + }()); + exports.ArrayExpression = ArrayExpression; + var ArrayPattern = (function () { + function ArrayPattern(elements) { + this.type = syntax_1.Syntax.ArrayPattern; + this.elements = elements; + } + return ArrayPattern; + }()); + exports.ArrayPattern = ArrayPattern; + var ArrowFunctionExpression = (function () { + function ArrowFunctionExpression(params, body, expression) { + this.type = syntax_1.Syntax.ArrowFunctionExpression; + this.id = null; + this.params = params; + this.body = body; + this.generator = false; + this.expression = expression; + this.async = false; + } + return ArrowFunctionExpression; + }()); + exports.ArrowFunctionExpression = ArrowFunctionExpression; + var AssignmentExpression = (function () { + function AssignmentExpression(operator, left, right) { + this.type = syntax_1.Syntax.AssignmentExpression; + this.operator = operator; + this.left = left; + this.right = right; + } + return AssignmentExpression; + }()); + exports.AssignmentExpression = AssignmentExpression; + var AssignmentPattern = (function () { + function AssignmentPattern(left, right) { + this.type = syntax_1.Syntax.AssignmentPattern; + this.left = left; + this.right = right; + } + return AssignmentPattern; + }()); + exports.AssignmentPattern = AssignmentPattern; + var AsyncArrowFunctionExpression = (function () { + function AsyncArrowFunctionExpression(params, body, expression) { + this.type = syntax_1.Syntax.ArrowFunctionExpression; + this.id = null; + this.params = params; + this.body = body; + this.generator = false; + this.expression = expression; + this.async = true; + } + return AsyncArrowFunctionExpression; + }()); + exports.AsyncArrowFunctionExpression = AsyncArrowFunctionExpression; + var AsyncFunctionDeclaration = (function () { + function AsyncFunctionDeclaration(id, params, body) { + this.type = syntax_1.Syntax.FunctionDeclaration; + this.id = id; + this.params = params; + this.body = body; + this.generator = false; + this.expression = false; + this.async = true; + } + return AsyncFunctionDeclaration; + }()); + exports.AsyncFunctionDeclaration = AsyncFunctionDeclaration; + var AsyncFunctionExpression = (function () { + function AsyncFunctionExpression(id, params, body) { + this.type = syntax_1.Syntax.FunctionExpression; + this.id = id; + this.params = params; + this.body = body; + this.generator = false; + this.expression = false; + this.async = true; + } + return AsyncFunctionExpression; + }()); + exports.AsyncFunctionExpression = AsyncFunctionExpression; + var AwaitExpression = (function () { + function AwaitExpression(argument) { + this.type = syntax_1.Syntax.AwaitExpression; + this.argument = argument; + } + return AwaitExpression; + }()); + exports.AwaitExpression = AwaitExpression; + var BinaryExpression = (function () { + function BinaryExpression(operator, left, right) { + var logical = (operator === '||' || operator === '&&'); + this.type = logical ? syntax_1.Syntax.LogicalExpression : syntax_1.Syntax.BinaryExpression; + this.operator = operator; + this.left = left; + this.right = right; + } + return BinaryExpression; + }()); + exports.BinaryExpression = BinaryExpression; + var BlockStatement = (function () { + function BlockStatement(body) { + this.type = syntax_1.Syntax.BlockStatement; + this.body = body; + } + return BlockStatement; + }()); + exports.BlockStatement = BlockStatement; + var BreakStatement = (function () { + function BreakStatement(label) { + this.type = syntax_1.Syntax.BreakStatement; + this.label = label; + } + return BreakStatement; + }()); + exports.BreakStatement = BreakStatement; + var CallExpression = (function () { + function CallExpression(callee, args) { + this.type = syntax_1.Syntax.CallExpression; + this.callee = callee; + this.arguments = args; + } + return CallExpression; + }()); + exports.CallExpression = CallExpression; + var CatchClause = (function () { + function CatchClause(param, body) { + this.type = syntax_1.Syntax.CatchClause; + this.param = param; + this.body = body; + } + return CatchClause; + }()); + exports.CatchClause = CatchClause; + var ClassBody = (function () { + function ClassBody(body) { + this.type = syntax_1.Syntax.ClassBody; + this.body = body; + } + return ClassBody; + }()); + exports.ClassBody = ClassBody; + var ClassDeclaration = (function () { + function ClassDeclaration(id, superClass, body) { + this.type = syntax_1.Syntax.ClassDeclaration; + this.id = id; + this.superClass = superClass; + this.body = body; + } + return ClassDeclaration; + }()); + exports.ClassDeclaration = ClassDeclaration; + var ClassExpression = (function () { + function ClassExpression(id, superClass, body) { + this.type = syntax_1.Syntax.ClassExpression; + this.id = id; + this.superClass = superClass; + this.body = body; + } + return ClassExpression; + }()); + exports.ClassExpression = ClassExpression; + var ComputedMemberExpression = (function () { + function ComputedMemberExpression(object, property) { + this.type = syntax_1.Syntax.MemberExpression; + this.computed = true; + this.object = object; + this.property = property; + } + return ComputedMemberExpression; + }()); + exports.ComputedMemberExpression = ComputedMemberExpression; + var ConditionalExpression = (function () { + function ConditionalExpression(test, consequent, alternate) { + this.type = syntax_1.Syntax.ConditionalExpression; + this.test = test; + this.consequent = consequent; + this.alternate = alternate; + } + return ConditionalExpression; + }()); + exports.ConditionalExpression = ConditionalExpression; + var ContinueStatement = (function () { + function ContinueStatement(label) { + this.type = syntax_1.Syntax.ContinueStatement; + this.label = label; + } + return ContinueStatement; + }()); + exports.ContinueStatement = ContinueStatement; + var DebuggerStatement = (function () { + function DebuggerStatement() { + this.type = syntax_1.Syntax.DebuggerStatement; + } + return DebuggerStatement; + }()); + exports.DebuggerStatement = DebuggerStatement; + var Directive = (function () { + function Directive(expression, directive) { + this.type = syntax_1.Syntax.ExpressionStatement; + this.expression = expression; + this.directive = directive; + } + return Directive; + }()); + exports.Directive = Directive; + var DoWhileStatement = (function () { + function DoWhileStatement(body, test) { + this.type = syntax_1.Syntax.DoWhileStatement; + this.body = body; + this.test = test; + } + return DoWhileStatement; + }()); + exports.DoWhileStatement = DoWhileStatement; + var EmptyStatement = (function () { + function EmptyStatement() { + this.type = syntax_1.Syntax.EmptyStatement; + } + return EmptyStatement; + }()); + exports.EmptyStatement = EmptyStatement; + var ExportAllDeclaration = (function () { + function ExportAllDeclaration(source) { + this.type = syntax_1.Syntax.ExportAllDeclaration; + this.source = source; + } + return ExportAllDeclaration; + }()); + exports.ExportAllDeclaration = ExportAllDeclaration; + var ExportDefaultDeclaration = (function () { + function ExportDefaultDeclaration(declaration) { + this.type = syntax_1.Syntax.ExportDefaultDeclaration; + this.declaration = declaration; + } + return ExportDefaultDeclaration; + }()); + exports.ExportDefaultDeclaration = ExportDefaultDeclaration; + var ExportNamedDeclaration = (function () { + function ExportNamedDeclaration(declaration, specifiers, source) { + this.type = syntax_1.Syntax.ExportNamedDeclaration; + this.declaration = declaration; + this.specifiers = specifiers; + this.source = source; + } + return ExportNamedDeclaration; + }()); + exports.ExportNamedDeclaration = ExportNamedDeclaration; + var ExportSpecifier = (function () { + function ExportSpecifier(local, exported) { + this.type = syntax_1.Syntax.ExportSpecifier; + this.exported = exported; + this.local = local; + } + return ExportSpecifier; + }()); + exports.ExportSpecifier = ExportSpecifier; + var ExpressionStatement = (function () { + function ExpressionStatement(expression) { + this.type = syntax_1.Syntax.ExpressionStatement; + this.expression = expression; + } + return ExpressionStatement; + }()); + exports.ExpressionStatement = ExpressionStatement; + var ForInStatement = (function () { + function ForInStatement(left, right, body) { + this.type = syntax_1.Syntax.ForInStatement; + this.left = left; + this.right = right; + this.body = body; + this.each = false; + } + return ForInStatement; + }()); + exports.ForInStatement = ForInStatement; + var ForOfStatement = (function () { + function ForOfStatement(left, right, body) { + this.type = syntax_1.Syntax.ForOfStatement; + this.left = left; + this.right = right; + this.body = body; + } + return ForOfStatement; + }()); + exports.ForOfStatement = ForOfStatement; + var ForStatement = (function () { + function ForStatement(init, test, update, body) { + this.type = syntax_1.Syntax.ForStatement; + this.init = init; + this.test = test; + this.update = update; + this.body = body; + } + return ForStatement; + }()); + exports.ForStatement = ForStatement; + var FunctionDeclaration = (function () { + function FunctionDeclaration(id, params, body, generator) { + this.type = syntax_1.Syntax.FunctionDeclaration; + this.id = id; + this.params = params; + this.body = body; + this.generator = generator; + this.expression = false; + this.async = false; + } + return FunctionDeclaration; + }()); + exports.FunctionDeclaration = FunctionDeclaration; + var FunctionExpression = (function () { + function FunctionExpression(id, params, body, generator) { + this.type = syntax_1.Syntax.FunctionExpression; + this.id = id; + this.params = params; + this.body = body; + this.generator = generator; + this.expression = false; + this.async = false; + } + return FunctionExpression; + }()); + exports.FunctionExpression = FunctionExpression; + var Identifier = (function () { + function Identifier(name) { + this.type = syntax_1.Syntax.Identifier; + this.name = name; + } + return Identifier; + }()); + exports.Identifier = Identifier; + var IfStatement = (function () { + function IfStatement(test, consequent, alternate) { + this.type = syntax_1.Syntax.IfStatement; + this.test = test; + this.consequent = consequent; + this.alternate = alternate; + } + return IfStatement; + }()); + exports.IfStatement = IfStatement; + var ImportDeclaration = (function () { + function ImportDeclaration(specifiers, source) { + this.type = syntax_1.Syntax.ImportDeclaration; + this.specifiers = specifiers; + this.source = source; + } + return ImportDeclaration; + }()); + exports.ImportDeclaration = ImportDeclaration; + var ImportDefaultSpecifier = (function () { + function ImportDefaultSpecifier(local) { + this.type = syntax_1.Syntax.ImportDefaultSpecifier; + this.local = local; + } + return ImportDefaultSpecifier; + }()); + exports.ImportDefaultSpecifier = ImportDefaultSpecifier; + var ImportNamespaceSpecifier = (function () { + function ImportNamespaceSpecifier(local) { + this.type = syntax_1.Syntax.ImportNamespaceSpecifier; + this.local = local; + } + return ImportNamespaceSpecifier; + }()); + exports.ImportNamespaceSpecifier = ImportNamespaceSpecifier; + var ImportSpecifier = (function () { + function ImportSpecifier(local, imported) { + this.type = syntax_1.Syntax.ImportSpecifier; + this.local = local; + this.imported = imported; + } + return ImportSpecifier; + }()); + exports.ImportSpecifier = ImportSpecifier; + var LabeledStatement = (function () { + function LabeledStatement(label, body) { + this.type = syntax_1.Syntax.LabeledStatement; + this.label = label; + this.body = body; + } + return LabeledStatement; + }()); + exports.LabeledStatement = LabeledStatement; + var Literal = (function () { + function Literal(value, raw) { + this.type = syntax_1.Syntax.Literal; + this.value = value; + this.raw = raw; + } + return Literal; + }()); + exports.Literal = Literal; + var MetaProperty = (function () { + function MetaProperty(meta, property) { + this.type = syntax_1.Syntax.MetaProperty; + this.meta = meta; + this.property = property; + } + return MetaProperty; + }()); + exports.MetaProperty = MetaProperty; + var MethodDefinition = (function () { + function MethodDefinition(key, computed, value, kind, isStatic) { + this.type = syntax_1.Syntax.MethodDefinition; + this.key = key; + this.computed = computed; + this.value = value; + this.kind = kind; + this.static = isStatic; + } + return MethodDefinition; + }()); + exports.MethodDefinition = MethodDefinition; + var Module = (function () { + function Module(body) { + this.type = syntax_1.Syntax.Program; + this.body = body; + this.sourceType = 'module'; + } + return Module; + }()); + exports.Module = Module; + var NewExpression = (function () { + function NewExpression(callee, args) { + this.type = syntax_1.Syntax.NewExpression; + this.callee = callee; + this.arguments = args; + } + return NewExpression; + }()); + exports.NewExpression = NewExpression; + var ObjectExpression = (function () { + function ObjectExpression(properties) { + this.type = syntax_1.Syntax.ObjectExpression; + this.properties = properties; + } + return ObjectExpression; + }()); + exports.ObjectExpression = ObjectExpression; + var ObjectPattern = (function () { + function ObjectPattern(properties) { + this.type = syntax_1.Syntax.ObjectPattern; + this.properties = properties; + } + return ObjectPattern; + }()); + exports.ObjectPattern = ObjectPattern; + var Property = (function () { + function Property(kind, key, computed, value, method, shorthand) { + this.type = syntax_1.Syntax.Property; + this.key = key; + this.computed = computed; + this.value = value; + this.kind = kind; + this.method = method; + this.shorthand = shorthand; + } + return Property; + }()); + exports.Property = Property; + var RegexLiteral = (function () { + function RegexLiteral(value, raw, pattern, flags) { + this.type = syntax_1.Syntax.Literal; + this.value = value; + this.raw = raw; + this.regex = { pattern: pattern, flags: flags }; + } + return RegexLiteral; + }()); + exports.RegexLiteral = RegexLiteral; + var RestElement = (function () { + function RestElement(argument) { + this.type = syntax_1.Syntax.RestElement; + this.argument = argument; + } + return RestElement; + }()); + exports.RestElement = RestElement; + var ReturnStatement = (function () { + function ReturnStatement(argument) { + this.type = syntax_1.Syntax.ReturnStatement; + this.argument = argument; + } + return ReturnStatement; + }()); + exports.ReturnStatement = ReturnStatement; + var Script = (function () { + function Script(body) { + this.type = syntax_1.Syntax.Program; + this.body = body; + this.sourceType = 'script'; + } + return Script; + }()); + exports.Script = Script; + var SequenceExpression = (function () { + function SequenceExpression(expressions) { + this.type = syntax_1.Syntax.SequenceExpression; + this.expressions = expressions; + } + return SequenceExpression; + }()); + exports.SequenceExpression = SequenceExpression; + var SpreadElement = (function () { + function SpreadElement(argument) { + this.type = syntax_1.Syntax.SpreadElement; + this.argument = argument; + } + return SpreadElement; + }()); + exports.SpreadElement = SpreadElement; + var StaticMemberExpression = (function () { + function StaticMemberExpression(object, property) { + this.type = syntax_1.Syntax.MemberExpression; + this.computed = false; + this.object = object; + this.property = property; + } + return StaticMemberExpression; + }()); + exports.StaticMemberExpression = StaticMemberExpression; + var Super = (function () { + function Super() { + this.type = syntax_1.Syntax.Super; + } + return Super; + }()); + exports.Super = Super; + var SwitchCase = (function () { + function SwitchCase(test, consequent) { + this.type = syntax_1.Syntax.SwitchCase; + this.test = test; + this.consequent = consequent; + } + return SwitchCase; + }()); + exports.SwitchCase = SwitchCase; + var SwitchStatement = (function () { + function SwitchStatement(discriminant, cases) { + this.type = syntax_1.Syntax.SwitchStatement; + this.discriminant = discriminant; + this.cases = cases; + } + return SwitchStatement; + }()); + exports.SwitchStatement = SwitchStatement; + var TaggedTemplateExpression = (function () { + function TaggedTemplateExpression(tag, quasi) { + this.type = syntax_1.Syntax.TaggedTemplateExpression; + this.tag = tag; + this.quasi = quasi; + } + return TaggedTemplateExpression; + }()); + exports.TaggedTemplateExpression = TaggedTemplateExpression; + var TemplateElement = (function () { + function TemplateElement(value, tail) { + this.type = syntax_1.Syntax.TemplateElement; + this.value = value; + this.tail = tail; + } + return TemplateElement; + }()); + exports.TemplateElement = TemplateElement; + var TemplateLiteral = (function () { + function TemplateLiteral(quasis, expressions) { + this.type = syntax_1.Syntax.TemplateLiteral; + this.quasis = quasis; + this.expressions = expressions; + } + return TemplateLiteral; + }()); + exports.TemplateLiteral = TemplateLiteral; + var ThisExpression = (function () { + function ThisExpression() { + this.type = syntax_1.Syntax.ThisExpression; + } + return ThisExpression; + }()); + exports.ThisExpression = ThisExpression; + var ThrowStatement = (function () { + function ThrowStatement(argument) { + this.type = syntax_1.Syntax.ThrowStatement; + this.argument = argument; + } + return ThrowStatement; + }()); + exports.ThrowStatement = ThrowStatement; + var TryStatement = (function () { + function TryStatement(block, handler, finalizer) { + this.type = syntax_1.Syntax.TryStatement; + this.block = block; + this.handler = handler; + this.finalizer = finalizer; + } + return TryStatement; + }()); + exports.TryStatement = TryStatement; + var UnaryExpression = (function () { + function UnaryExpression(operator, argument) { + this.type = syntax_1.Syntax.UnaryExpression; + this.operator = operator; + this.argument = argument; + this.prefix = true; + } + return UnaryExpression; + }()); + exports.UnaryExpression = UnaryExpression; + var UpdateExpression = (function () { + function UpdateExpression(operator, argument, prefix) { + this.type = syntax_1.Syntax.UpdateExpression; + this.operator = operator; + this.argument = argument; + this.prefix = prefix; + } + return UpdateExpression; + }()); + exports.UpdateExpression = UpdateExpression; + var VariableDeclaration = (function () { + function VariableDeclaration(declarations, kind) { + this.type = syntax_1.Syntax.VariableDeclaration; + this.declarations = declarations; + this.kind = kind; + } + return VariableDeclaration; + }()); + exports.VariableDeclaration = VariableDeclaration; + var VariableDeclarator = (function () { + function VariableDeclarator(id, init) { + this.type = syntax_1.Syntax.VariableDeclarator; + this.id = id; + this.init = init; + } + return VariableDeclarator; + }()); + exports.VariableDeclarator = VariableDeclarator; + var WhileStatement = (function () { + function WhileStatement(test, body) { + this.type = syntax_1.Syntax.WhileStatement; + this.test = test; + this.body = body; + } + return WhileStatement; + }()); + exports.WhileStatement = WhileStatement; + var WithStatement = (function () { + function WithStatement(object, body) { + this.type = syntax_1.Syntax.WithStatement; + this.object = object; + this.body = body; + } + return WithStatement; + }()); + exports.WithStatement = WithStatement; + var YieldExpression = (function () { + function YieldExpression(argument, delegate) { + this.type = syntax_1.Syntax.YieldExpression; + this.argument = argument; + this.delegate = delegate; + } + return YieldExpression; + }()); + exports.YieldExpression = YieldExpression; /***/ }, /* 8 */ /***/ function(module, exports, __webpack_require__) { - "use strict"; - 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; // `' 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; // ` x||y + if (condition instanceof AST_SymbolRef + && consequent instanceof AST_SymbolRef + && condition.definition() === consequent.definition()) { + return make_node(AST_Binary, self, { + operator: "||", + left: condition, + right: alternative + }); + } + // if (foo) exp = something; else exp = something_else; + // | + // v + // exp = foo ? something : something_else; if (consequent instanceof AST_Assign && alternative instanceof AST_Assign && consequent.operator == alternative.operator && consequent.left.equivalent_to(alternative.left) - && !consequent.left.has_side_effects(compressor) - ) { - /* - * Stuff like this: - * if (foo) exp = something; else exp = something_else; - * ==> - * exp = foo ? something : something_else; - */ + && (!self.condition.has_side_effects(compressor) + || consequent.operator == "=" + && !consequent.left.has_side_effects(compressor))) { return make_node(AST_Assign, self, { operator: consequent.operator, left: consequent.left, @@ -22221,25 +23430,19 @@ merge(Compressor.prototype, { }) }); } + // x ? y(a) : y(b) --> y(x ? a : b) if (consequent instanceof AST_Call && alternative.TYPE === consequent.TYPE - && consequent.args.length == alternative.args.length - && !consequent.expression.has_side_effects(compressor) - && consequent.expression.equivalent_to(alternative.expression)) { - if (consequent.args.length == 0) { - return make_node(AST_Seq, self, { - car: self.condition, - cdr: consequent - }); - } - if (consequent.args.length == 1) { - consequent.args[0] = make_node(AST_Conditional, self, { - condition: self.condition, - consequent: consequent.args[0], - alternative: alternative.args[0] - }); - return consequent; - } + && consequent.args.length == 1 + && alternative.args.length == 1 + && consequent.expression.equivalent_to(alternative.expression) + && !consequent.expression.has_side_effects(compressor)) { + consequent.args[0] = make_node(AST_Conditional, self, { + condition: self.condition, + consequent: consequent.args[0], + alternative: alternative.args[0] + }); + return consequent; } // x?y?z:a:a --> x&&y?z:a if (consequent instanceof AST_Conditional @@ -22254,16 +23457,12 @@ merge(Compressor.prototype, { alternative: alternative }); } - // y?1:1 --> 1 - if (consequent.is_constant(compressor) - && alternative.is_constant(compressor) - && consequent.equivalent_to(alternative)) { - var consequent_value = consequent.constant_value(compressor); - if (self.condition.has_side_effects(compressor)) { - return AST_Seq.from_array([self.condition, make_node_from_constant(compressor, consequent_value, self)]); - } else { - return make_node_from_constant(compressor, consequent_value, self); - } + // x ? y : y --> x, y + if (consequent.equivalent_to(alternative)) { + return make_node(AST_Seq, self, { + car: self.condition, + cdr: consequent + }).optimize(compressor); } if (is_true(self.consequent)) { @@ -22379,10 +23578,19 @@ merge(Compressor.prototype, { }); } } + var ev = self.evaluate(compressor); + if (ev !== self) { + ev = make_node_from_constant(ev, self).optimize(compressor); + return best_of(compressor, ev, self); + } return self; }); OPT(AST_Dot, function(self, compressor){ + var def = self.resolve_defines(compressor); + if (def) { + return def.optimize(compressor); + } var prop = self.property; if (RESERVED_WORDS(prop) && !compressor.option("screw_ie8")) { return make_node(AST_Sub, self, { @@ -22392,12 +23600,42 @@ merge(Compressor.prototype, { }) }).optimize(compressor); } - return self.evaluate(compressor)[0]; + if (compressor.option("unsafe_proto") + && self.expression instanceof AST_Dot + && self.expression.property == "prototype") { + var exp = self.expression.expression; + if (exp instanceof AST_SymbolRef && exp.undeclared()) switch (exp.name) { + case "Array": + self.expression = make_node(AST_Array, self.expression, { + elements: [] + }); + break; + case "Object": + self.expression = make_node(AST_Object, self.expression, { + properties: [] + }); + break; + case "String": + self.expression = make_node(AST_String, self.expression, { + value: "" + }); + break; + } + } + var ev = self.evaluate(compressor); + if (ev !== self) { + ev = make_node_from_constant(ev, self).optimize(compressor); + return best_of(compressor, ev, self); + } + return self; }); function literals_in_boolean_context(self, compressor) { - if (compressor.option("booleans") && compressor.in_boolean_context() && !self.has_side_effects(compressor)) { - return make_node(AST_True, self); + if (compressor.option("booleans") && compressor.in_boolean_context()) { + return best_of(compressor, self, make_node(AST_Seq, self, { + car: self, + cdr: make_node(AST_True, self) + }).optimize(compressor)); } return self; }; @@ -22406,12 +23644,20 @@ merge(Compressor.prototype, { OPT(AST_RegExp, literals_in_boolean_context); OPT(AST_Return, function(self, compressor){ - if (self.value instanceof AST_Undefined) { + if (self.value && is_undefined(self.value, compressor)) { self.value = null; } return self; }); + OPT(AST_VarDef, function(self, compressor){ + var defines = compressor.option("global_defs"); + if (defines && HOP(defines, self.name.name)) { + compressor.warn('global_defs ' + self.name.name + ' redefined [{file}:{line},{col}]', self.start); + } + return self; + }); + })(); /*********************************************************************** @@ -22625,23 +23871,19 @@ function SourceMap(options) { }, Property: function(M) { var key = M.key; - var name = key.type == "Identifier" ? key.name : key.value; var args = { start : my_start_token(key), end : my_end_token(M.value), - key : name, + key : key.type == "Identifier" ? key.name : key.value, value : from_moz(M.value) }; - switch (M.kind) { - case "init": - return new AST_ObjectKeyVal(args); - case "set": - args.value.name = from_moz(key); - return new AST_ObjectSetter(args); - case "get": - args.value.name = from_moz(key); - return new AST_ObjectGetter(args); - } + if (M.kind == "init") return new AST_ObjectKeyVal(args); + args.key = new AST_SymbolAccessor({ + name: args.key + }); + args.value = new AST_Accessor(args.value); + if (M.kind == "get") return new AST_ObjectGetter(args); + if (M.kind == "set") return new AST_ObjectSetter(args); }, ArrayExpression: function(M) { return new AST_Array({ @@ -22770,10 +24012,7 @@ function SourceMap(options) { map("CallExpression", AST_Call, "callee>expression, arguments@args"); def_to_moz(AST_Toplevel, function To_Moz_Program(M) { - return { - type: "Program", - body: M.body.map(to_moz) - }; + return to_moz_scope("Program", M); }); def_to_moz(AST_Defun, function To_Moz_FunctionDeclaration(M) { @@ -22781,7 +24020,7 @@ function SourceMap(options) { type: "FunctionDeclaration", id: to_moz(M.name), params: M.argnames.map(to_moz), - body: to_moz_block(M) + body: to_moz_scope("BlockStatement", M) } }); @@ -22790,7 +24029,7 @@ function SourceMap(options) { type: "FunctionExpression", id: to_moz(M.name), params: M.argnames.map(to_moz), - body: to_moz_block(M) + body: to_moz_scope("BlockStatement", M) } }); @@ -22896,11 +24135,10 @@ function SourceMap(options) { }); def_to_moz(AST_ObjectProperty, function To_Moz_Property(M) { - var key = ( - is_identifier(M.key) - ? {type: "Identifier", name: M.key} - : {type: "Literal", value: M.key} - ); + var key = { + type: "Literal", + value: M.key instanceof AST_SymbolAccessor ? M.key.name : M.key + }; var kind; if (M instanceof AST_ObjectKeyVal) { kind = "init"; @@ -23061,8 +24299,8 @@ function SourceMap(options) { moz_to_me = new Function("U2", "my_start_token", "my_end_token", "from_moz", "return(" + moz_to_me + ")")( exports, my_start_token, my_end_token, from_moz ); - me_to_moz = new Function("to_moz", "to_moz_block", "return(" + me_to_moz + ")")( - to_moz, to_moz_block + me_to_moz = new Function("to_moz", "to_moz_block", "to_moz_scope", "return(" + me_to_moz + ")")( + to_moz, to_moz_block, to_moz_scope ); MOZ_TO_ME[moztype] = moz_to_me; def_to_moz(mytype, me_to_moz); @@ -23120,6 +24358,16 @@ function SourceMap(options) { }; }; + function to_moz_scope(type, node) { + var body = node.body.map(to_moz); + if (node.body[0] instanceof AST_SimpleStatement && node.body[0].body instanceof AST_String) { + body.unshift(to_moz(new AST_EmptyStatement(node.body[0]))); + } + return { + type: type, + body: body + }; + }; })(); /*********************************************************************** @@ -23168,7 +24416,15 @@ function SourceMap(options) { "use strict"; function find_builtins() { - var a = []; + // NaN will be included due to Number.NaN + var a = [ + "null", + "true", + "false", + "Infinity", + "-Infinity", + "undefined", + ]; [ Object, Array, Function, Number, String, Boolean, Error, Math, Date, RegExp @@ -23186,12 +24442,12 @@ function find_builtins() { function mangle_properties(ast, options) { options = defaults(options, { - reserved : null, - cache : null, - only_cache : false, - regex : null, - ignore_quoted : false, - debug : false + cache: null, + debug: false, + ignore_quoted: false, + only_cache: false, + regex: null, + reserved: null, }); var reserved = options.reserved; @@ -23278,7 +24534,7 @@ function mangle_properties(ast, options) { if (options.only_cache) { return cache.props.has(name); } - if (/^[0-9.]+$/.test(name)) return false; + if (/^-?[0-9]+(\.[0-9]+)?(e[+-][0-9]+)?$/.test(name)) return false; return true; } @@ -23379,46 +24635,101 @@ function mangle_properties(ast, options) { } +exports["Compressor"] = Compressor; +exports["DefaultsError"] = DefaultsError; +exports["Dictionary"] = Dictionary; +exports["JS_Parse_Error"] = JS_Parse_Error; +exports["MAP"] = MAP; +exports["OutputStream"] = OutputStream; +exports["SourceMap"] = SourceMap; +exports["TreeTransformer"] = TreeTransformer; +exports["TreeWalker"] = TreeWalker; +exports["base54"] = base54; +exports["defaults"] = defaults; +exports["mangle_properties"] = mangle_properties; +exports["merge"] = merge; +exports["parse"] = parse; +exports["push_uniq"] = push_uniq; +exports["string_template"] = string_template; +exports["tokenizer"] = tokenizer; +exports["is_identifier"] = is_identifier; +exports["SymbolDef"] = SymbolDef; + AST_Node.warn_function = function(txt) { logger.error("uglifyjs WARN: " + txt); }; +// workaround for tty output truncation upon process.exit() +[process.stdout, process.stderr].forEach(function(stream){ + if (stream._handle && stream._handle.setBlocking) + stream._handle.setBlocking(true); +}); + +exports.AST_Node.warn_function = function(txt) { + console.error("WARN: %s", txt); +}; + +function read_source_map(code) { + var match = /\n\/\/# sourceMappingURL=data:application\/json(;.*?)?;base64,(.*)/.exec(code); + if (!match) { + exports.AST_Node.warn("inline source map not found"); + return null; + } + return JSON.parse(new Buffer(match[2], "base64")); +} + exports.minify = function(files, options, name) { - options = defaults(options, { - spidermonkey : false, - outSourceMap : null, - outFileName : null, - sourceRoot : null, - inSourceMap : null, - sourceMapUrl : null, - sourceMapInline : false, + options = exports.defaults(options, { + compress : {}, fromString : false, - warnings : false, + inSourceMap : null, mangle : {}, mangleProperties : false, nameCache : null, + outFileName : null, output : null, - compress : {}, - parse : {} + outSourceMap : null, + parse : {}, + sourceMapInline : false, + sourceMapUrl : null, + sourceRoot : null, + spidermonkey : false, + warnings : false, }); - base54.reset(); + exports.base54.reset(); + + var inMap = options.inSourceMap; + if (typeof inMap == "string" && inMap != "inline") { + inMap = JSON.parse(rjsFile.readFile(inMap, "utf8")); + } // 1. parse var toplevel = null, sourcesContent = {}; if (options.spidermonkey) { - toplevel = AST_Node.from_mozilla_ast(files); + if (inMap == "inline") { + throw new Error("inline source map only works with built-in parser"); + } + toplevel = exports.AST_Node.from_mozilla_ast(files); } else { var addFile = function(file, fileUrl) { var code = options.fromString ? file : rjsFile.readFile(file, "utf8"); + if (inMap == "inline") { + inMap = read_source_map(code); + } sourcesContent[fileUrl] = code; - toplevel = parse(code, { + toplevel = exports.parse(code, { filename: fileUrl, toplevel: toplevel, bare_returns: options.parse ? options.parse.bare_returns : undefined }); } - if (!options.fromString) files = simple_glob(files); + if (!options.fromString) { + files = exports.simple_glob(files); + if (inMap == "inline" && files.length > 1) { + throw new Error("inline source map only works with singular input"); + } + } [].concat(files).forEach(function (files, i) { if (typeof files === 'string') { addFile(files, options.fromString ? i : files); @@ -23436,17 +24747,17 @@ exports.minify = function(files, options, name) { // 2. compress if (options.compress) { var compress = { warnings: options.warnings }; - merge(compress, options.compress); - toplevel.figure_out_scope(); - var sq = Compressor(compress); + exports.merge(compress, options.compress); + toplevel.figure_out_scope(options.mangle); + var sq = exports.Compressor(compress); toplevel = sq.compress(toplevel); } // 3. mangle properties if (options.mangleProperties || options.nameCache) { - options.mangleProperties.cache = readNameCache(options.nameCache, "props"); - toplevel = mangle_properties(toplevel, options.mangleProperties); - writeNameCache(options.nameCache, "props", options.mangleProperties.cache); + options.mangleProperties.cache = exports.readNameCache(options.nameCache, "props"); + toplevel = exports.mangle_properties(toplevel, options.mangleProperties); + exports.writeNameCache(options.nameCache, "props", options.mangleProperties.cache); } // 4. mangle @@ -23457,13 +24768,9 @@ exports.minify = function(files, options, name) { } // 5. output - var inMap = options.inSourceMap; - var output = {}; - if (typeof options.inSourceMap == "string") { - inMap = JSON.parse(rjsFile.readFile(options.inSourceMap, "utf8")); - } + var output = { max_line_len: 32000 }; if (options.outSourceMap || options.sourceMapInline) { - output.source_map = SourceMap({ + output.source_map = exports.SourceMap({ // prefer outFileName, otherwise use outSourceMap without .map suffix file: options.outFileName || (typeof options.outSourceMap === 'string' ? options.outSourceMap.replace(/\.map$/i, '') : null), orig: inMap, @@ -23479,9 +24786,9 @@ exports.minify = function(files, options, name) { } if (options.output) { - merge(output, options.output); + exports.merge(output, options.output); } - var stream = OutputStream(output); + var stream = exports.OutputStream(output); toplevel.print(stream); @@ -23514,11 +24821,11 @@ exports.minify = function(files, options, name) { // if (ctor.SUBCLASSES.length > 0) ret.sub = sub; // return ret; // } -// return doitem(AST_Node).sub; +// return doitem(exports.AST_Node).sub; // } exports.describe_ast = function() { - var out = OutputStream({ beautify: true }); + var out = exports.OutputStream({ beautify: true }); function doitem(ctor) { out.print("AST_" + ctor.TYPE); var props = ctor.SELF_PROPS.filter(function(prop){ @@ -23548,29 +24855,54 @@ exports.describe_ast = function() { }); } }; - doitem(AST_Node); + doitem(exports.AST_Node); return out + ""; }; -var readNameCache = function(filename, key) { +function readReservedFile(filename, reserved) { + if (!reserved) { + reserved = { vars: [], props: [] }; + } + var data = rjsFile.readFile(filename, "utf8"); + data = JSON.parse(data); + if (data.vars) { + data.vars.forEach(function(name){ + exports.push_uniq(reserved.vars, name); + }); + } + if (data.props) { + data.props.forEach(function(name){ + exports.push_uniq(reserved.props, name); + }); + } + return reserved; +} + +exports.readReservedFile = readReservedFile; + +exports.readDefaultReservedFile = function(reserved) { + return readReservedFile(require.resolve("./domprops.json"), reserved); +}; + +exports.readNameCache = function(filename, key) { var cache = null; if (filename) { try { var cache = rjsFile.readFile(filename, "utf8"); cache = JSON.parse(cache)[key]; if (!cache) throw "init"; - cache.props = Dictionary.fromObject(cache.props); + cache.props = exports.Dictionary.fromObject(cache.props); } catch(ex) { cache = { cname: -1, - props: new Dictionary() + props: new exports.Dictionary() }; } } return cache; }; -var writeNameCache = function(filename, key, cache) { +exports.writeNameCache = function(filename, key, cache) { if (filename) { var data; try { @@ -23583,10 +24915,41 @@ var writeNameCache = function(filename, key, cache) { cname: cache.cname, props: cache.props.toObject() }; - fs.writeFileSync(filename, JSON.stringify(data, null, 2), "utf8"); + rjsFile.writeFile(filename, JSON.stringify(data, null, 2), "utf8"); } }; +// A file glob function that only supports "*" and "?" wildcards in the basename. +// Example: "foo/bar/*baz??.*.js" +// Argument `glob` may be a string or an array of strings. +// Returns an array of strings. Garbage in, garbage out. +exports.simple_glob = function simple_glob(glob) { + if (Array.isArray(glob)) { + return [].concat.apply([], glob.map(simple_glob)); + } + if (glob.match(/\*|\?/)) { + var dir = path.dirname(glob); + try { + var entries = fs.readdirSync(dir); + } catch (ex) {} + if (entries) { + var pattern = "^" + path.basename(glob) + .replace(/[.+^$[\]\\(){}]/g, "\\$&") + .replace(/\*/g, "[^/\\\\]*") + .replace(/\?/g, "[^/\\\\]") + "$"; + var mod = process.platform === "win32" ? "i" : ""; + var rx = new RegExp(pattern, mod); + var results = entries.filter(function(name) { + return rx.test(name); + }).map(function(name) { + return path.join(dir, name); + }); + if (results.length) return results; + } + } + return [ glob ]; +}; + }); /*jslint plusplus: true */ @@ -25595,7 +26958,8 @@ function (lang, logger, envOptimize, file, parse, cssUrlRegExp = /\url\(\s*([^\)]+)\s*\)?/g, protocolRegExp = /^\w+:/, SourceMapGenerator = sourceMap.SourceMapGenerator, - SourceMapConsumer =sourceMap.SourceMapConsumer; + SourceMapConsumer = sourceMap.SourceMapConsumer, + es5PlusGuidance = 'If the source uses ES2015 or later syntax, please pass "optimize: \'none\'" to r.js and use an ES2015+ compatible minifier after running r.js. The included UglifyJS only understands ES5 or earlier syntax.'; /** * If an URL from a CSS url value contains start/end quotes, remove them. @@ -25991,7 +27355,6 @@ function (lang, logger, envOptimize, file, parse, var result, existingMap, resultMap, finalMap, sourceIndex, uconfig = {}, existingMapPath = outFileName + '.map', - preamble = config.preamble || "", baseName = fileName && fileName.split('/').pop(); config = config || {}; @@ -26039,9 +27402,13 @@ function (lang, logger, envOptimize, file, parse, fileContents = result.code; } } catch (e) { - throw new Error('Cannot uglify file: ' + fileName + '. Skipping it. Error is:\n' + e.toString()); + var errorString = e.toString(); + var isSyntaxError = /SyntaxError/.test(errorString); + throw new Error('Cannot uglify file: ' + fileName + + '. Skipping it. Error is:\n' + errorString + + (isSyntaxError ? '\n\n' + es5PlusGuidance : '')); } - return preamble + fileContents; + return fileContents; } } }; @@ -29010,7 +30377,7 @@ function (args, quit, logger, build) { } else if (commandOption === 'v') { console.log('r.js: ' + version + ', RequireJS: ' + this.requirejsVars.require.version + - ', UglifyJS: 2.7.5'); + ', UglifyJS: 2.8.29'); } else if (commandOption === 'convert') { loadLib(); diff --git a/www/js/lib/require.js b/www/js/lib/require.js index 106e481..051e284 100644 --- a/www/js/lib/require.js +++ b/www/js/lib/require.js @@ -1,5 +1,5 @@ /** vim: et:ts=4:sw=4:sts=4 - * @license RequireJS 2.3.4 Copyright jQuery Foundation and other contributors. + * @license RequireJS 2.3.5 Copyright jQuery Foundation and other contributors. * Released under MIT license, https://github.com/requirejs/requirejs/blob/master/LICENSE */ //Not using strict: uneven strict support in browsers, #392, and causes @@ -11,7 +11,7 @@ var requirejs, require, define; (function (global, setTimeout) { var req, s, head, baseElement, dataMain, src, interactiveScript, currentlyAddingScript, mainScript, subPath, - version = '2.3.4', + version = '2.3.5', commentRegExp = /\/\*[\s\S]*?\*\/|([^:"'=]|^)\/\/.*$/mg, cjsRequireRegExp = /[^.]\s*require\s*\(\s*["']([^'"\s]+)["']\s*\)/g, jsSuffixRegExp = /\.js$/, From cd62e67adc7b5997e37155a3168efceda7ab7435 Mon Sep 17 00:00:00 2001 From: Arnaud Ferrand Date: Fri, 8 Sep 2017 09:20:28 +0100 Subject: [PATCH 4/5] update README fix title markdown for github --- README.md | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/README.md b/README.md index d759c4c..1caae8c 100644 --- a/README.md +++ b/README.md @@ -9,7 +9,7 @@ The most important part of this example is the app.js file, which specifies the **If you want IE6-8 support**, clone this repo, but replace the jQuery file with the latest jQuery 1.x release. The jQuery 2 file used in this project does not work with those browsers. -###Project structure +### Project structure tools/ @@ -29,7 +29,7 @@ www/js/ - app/ - main.js -###How it's set up +### How it's set up The main file of this setup is www/js/app.js. It is loaded from app.html by this line: ```html @@ -64,11 +64,11 @@ define(["jquery", "jquery.alpha", "jquery.beta"], function($) { }); ``` -###How to see it in action +### How to see it in action Just serve up the www/ folder using any web server you'd like. To get you set up quickly, we've included a node.js static file server in tools/. Start the server by typing `node tools/server.js` from the command line, and then go to [localhost:8888/www/app.html](http://localhost:8888/www/app.html) in your browser. -###How to optimize it using r.js +### How to optimize it using r.js To use the optimizer, you need [node.js](http://nodejs.org) or Java 6 installed. These instructions assume Node is being used. See the [Optimization page](http://requirejs.org/docs/optimization.html) for more information. r.js and a build configuration is included in the tools/ folder. To build, navigate to tools/ and type `node r.js -o build.js`. You will find the built product in the www-build folder. If you serve that directory instead, you can see in the network panel of the web developer tools that the files aren't loaded separately any more. From 6e201e3d2f39fd7969cfc5d75d8ca4fd2399eea5 Mon Sep 17 00:00:00 2001 From: jrburke Date: Sun, 26 Aug 2018 23:08:03 -0700 Subject: [PATCH 5/5] requirejs 2.3.6 --- tools/r.js | 13135 ++++++++++++++++++++-------------------- www/js/lib/require.js | 6 +- 2 files changed, 6576 insertions(+), 6565 deletions(-) diff --git a/tools/r.js b/tools/r.js index d8c8dc4..46f2864 100644 --- a/tools/r.js +++ b/tools/r.js @@ -1,5 +1,5 @@ /** - * @license r.js 2.3.5 Copyright jQuery Foundation and other contributors. + * @license r.js 2.3.6 Copyright jQuery Foundation and other contributors. * Released under MIT license, http://github.com/requirejs/r.js/LICENSE */ @@ -19,7 +19,7 @@ var requirejs, require, define, xpcUtil; (function (console, args, readFileFunc) { var fileName, env, fs, vm, path, exec, rhinoContext, dir, nodeRequire, nodeDefine, exists, reqMain, loadedOptimizedLib, existsForNode, Cc, Ci, - version = '2.3.5', + version = '2.3.6', jsSuffixRegExp = /\.js$/, commandOption = '', useLibLoaded = {}, @@ -248,7 +248,7 @@ var requirejs, require, define, xpcUtil; } /** vim: et:ts=4:sw=4:sts=4 - * @license RequireJS 2.3.5 Copyright jQuery Foundation and other contributors. + * @license RequireJS 2.3.6 Copyright jQuery Foundation and other contributors. * Released under MIT license, https://github.com/requirejs/requirejs/blob/master/LICENSE */ //Not using strict: uneven strict support in browsers, #392, and causes @@ -260,7 +260,7 @@ var requirejs, require, define, xpcUtil; (function (global, setTimeout) { var req, s, head, baseElement, dataMain, src, interactiveScript, currentlyAddingScript, mainScript, subPath, - version = '2.3.5', + version = '2.3.6', commentRegExp = /\/\*[\s\S]*?\*\/|([^:"'=]|^)\/\/.*$/mg, cjsRequireRegExp = /[^.]\s*require\s*\(\s*["']([^'"\s]+)["']\s*\)/g, jsSuffixRegExp = /\.js$/, @@ -414,7 +414,7 @@ var requirejs, require, define, xpcUtil; * @returns {Error} */ function makeError(id, msg, err, requireModules) { - var e = new Error(msg + '\nhttp://requirejs.org/docs/errors.html#' + id); + var e = new Error(msg + '\nhttps://requirejs.org/docs/errors.html#' + id); e.requireType = id; e.requireModules = requireModules; if (err) { @@ -4474,6 +4474,8 @@ define('logger', ['env!env/print'], function (print) { /* istanbul ignore next */ if(typeof define === 'function' && define.amd) define('esprima', [], factory); + else if(typeof exports === 'object' && typeof module === 'object') + module.exports = factory(); /* istanbul ignore next */ else if(typeof exports === 'object') exports["esprima"] = factory(); @@ -4527,6641 +4529,6650 @@ return /******/ (function(modules) { // webpackBootstrap /* 0 */ /***/ function(module, exports, __webpack_require__) { - "use strict"; - /* - Copyright JS Foundation and other contributors, https://js.foundation/ - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY - DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - Object.defineProperty(exports, "__esModule", { value: true }); - var comment_handler_1 = __webpack_require__(1); - var jsx_parser_1 = __webpack_require__(3); - var parser_1 = __webpack_require__(8); - var tokenizer_1 = __webpack_require__(15); - function parse(code, options, delegate) { - var commentHandler = null; - var proxyDelegate = function (node, metadata) { - if (delegate) { - delegate(node, metadata); - } - if (commentHandler) { - commentHandler.visit(node, metadata); - } - }; - var parserDelegate = (typeof delegate === 'function') ? proxyDelegate : null; - var collectComment = false; - if (options) { - collectComment = (typeof options.comment === 'boolean' && options.comment); - var attachComment = (typeof options.attachComment === 'boolean' && options.attachComment); - if (collectComment || attachComment) { - commentHandler = new comment_handler_1.CommentHandler(); - commentHandler.attach = attachComment; - options.comment = true; - parserDelegate = proxyDelegate; - } - } - var isModule = false; - if (options && typeof options.sourceType === 'string') { - isModule = (options.sourceType === 'module'); - } - var parser; - if (options && typeof options.jsx === 'boolean' && options.jsx) { - parser = new jsx_parser_1.JSXParser(code, options, parserDelegate); - } - else { - parser = new parser_1.Parser(code, options, parserDelegate); - } - var program = isModule ? parser.parseModule() : parser.parseScript(); - var ast = program; - if (collectComment && commentHandler) { - ast.comments = commentHandler.comments; - } - if (parser.config.tokens) { - ast.tokens = parser.tokens; - } - if (parser.config.tolerant) { - ast.errors = parser.errorHandler.errors; - } - return ast; - } - exports.parse = parse; - function parseModule(code, options, delegate) { - var parsingOptions = options || {}; - parsingOptions.sourceType = 'module'; - return parse(code, parsingOptions, delegate); - } - exports.parseModule = parseModule; - function parseScript(code, options, delegate) { - var parsingOptions = options || {}; - parsingOptions.sourceType = 'script'; - return parse(code, parsingOptions, delegate); - } - exports.parseScript = parseScript; - function tokenize(code, options, delegate) { - var tokenizer = new tokenizer_1.Tokenizer(code, options); - var tokens; - tokens = []; - try { - while (true) { - var token = tokenizer.getNextToken(); - if (!token) { - break; - } - if (delegate) { - token = delegate(token); - } - tokens.push(token); - } - } - catch (e) { - tokenizer.errorHandler.tolerate(e); - } - if (tokenizer.errorHandler.tolerant) { - tokens.errors = tokenizer.errors(); - } - return tokens; - } - exports.tokenize = tokenize; - var syntax_1 = __webpack_require__(2); - exports.Syntax = syntax_1.Syntax; - // Sync with *.json manifests. - exports.version = '4.0.0'; + "use strict"; + /* + Copyright JS Foundation and other contributors, https://js.foundation/ + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + Object.defineProperty(exports, "__esModule", { value: true }); + var comment_handler_1 = __webpack_require__(1); + var jsx_parser_1 = __webpack_require__(3); + var parser_1 = __webpack_require__(8); + var tokenizer_1 = __webpack_require__(15); + function parse(code, options, delegate) { + var commentHandler = null; + var proxyDelegate = function (node, metadata) { + if (delegate) { + delegate(node, metadata); + } + if (commentHandler) { + commentHandler.visit(node, metadata); + } + }; + var parserDelegate = (typeof delegate === 'function') ? proxyDelegate : null; + var collectComment = false; + if (options) { + collectComment = (typeof options.comment === 'boolean' && options.comment); + var attachComment = (typeof options.attachComment === 'boolean' && options.attachComment); + if (collectComment || attachComment) { + commentHandler = new comment_handler_1.CommentHandler(); + commentHandler.attach = attachComment; + options.comment = true; + parserDelegate = proxyDelegate; + } + } + var isModule = false; + if (options && typeof options.sourceType === 'string') { + isModule = (options.sourceType === 'module'); + } + var parser; + if (options && typeof options.jsx === 'boolean' && options.jsx) { + parser = new jsx_parser_1.JSXParser(code, options, parserDelegate); + } + else { + parser = new parser_1.Parser(code, options, parserDelegate); + } + var program = isModule ? parser.parseModule() : parser.parseScript(); + var ast = program; + if (collectComment && commentHandler) { + ast.comments = commentHandler.comments; + } + if (parser.config.tokens) { + ast.tokens = parser.tokens; + } + if (parser.config.tolerant) { + ast.errors = parser.errorHandler.errors; + } + return ast; + } + exports.parse = parse; + function parseModule(code, options, delegate) { + var parsingOptions = options || {}; + parsingOptions.sourceType = 'module'; + return parse(code, parsingOptions, delegate); + } + exports.parseModule = parseModule; + function parseScript(code, options, delegate) { + var parsingOptions = options || {}; + parsingOptions.sourceType = 'script'; + return parse(code, parsingOptions, delegate); + } + exports.parseScript = parseScript; + function tokenize(code, options, delegate) { + var tokenizer = new tokenizer_1.Tokenizer(code, options); + var tokens; + tokens = []; + try { + while (true) { + var token = tokenizer.getNextToken(); + if (!token) { + break; + } + if (delegate) { + token = delegate(token); + } + tokens.push(token); + } + } + catch (e) { + tokenizer.errorHandler.tolerate(e); + } + if (tokenizer.errorHandler.tolerant) { + tokens.errors = tokenizer.errors(); + } + return tokens; + } + exports.tokenize = tokenize; + var syntax_1 = __webpack_require__(2); + exports.Syntax = syntax_1.Syntax; + // Sync with *.json manifests. + exports.version = '4.0.1'; /***/ }, /* 1 */ /***/ function(module, exports, __webpack_require__) { - "use strict"; - Object.defineProperty(exports, "__esModule", { value: true }); - var syntax_1 = __webpack_require__(2); - var CommentHandler = (function () { - function CommentHandler() { - this.attach = false; - this.comments = []; - this.stack = []; - this.leading = []; - this.trailing = []; - } - CommentHandler.prototype.insertInnerComments = function (node, metadata) { - // innnerComments for properties empty block - // `function a() {/** comments **\/}` - if (node.type === syntax_1.Syntax.BlockStatement && node.body.length === 0) { - var innerComments = []; - for (var i = this.leading.length - 1; i >= 0; --i) { - var entry = this.leading[i]; - if (metadata.end.offset >= entry.start) { - innerComments.unshift(entry.comment); - this.leading.splice(i, 1); - this.trailing.splice(i, 1); - } - } - if (innerComments.length) { - node.innerComments = innerComments; - } - } - }; - CommentHandler.prototype.findTrailingComments = function (metadata) { - var trailingComments = []; - if (this.trailing.length > 0) { - for (var i = this.trailing.length - 1; i >= 0; --i) { - var entry_1 = this.trailing[i]; - if (entry_1.start >= metadata.end.offset) { - trailingComments.unshift(entry_1.comment); - } - } - this.trailing.length = 0; - return trailingComments; - } - var entry = this.stack[this.stack.length - 1]; - if (entry && entry.node.trailingComments) { - var firstComment = entry.node.trailingComments[0]; - if (firstComment && firstComment.range[0] >= metadata.end.offset) { - trailingComments = entry.node.trailingComments; - delete entry.node.trailingComments; - } - } - return trailingComments; - }; - CommentHandler.prototype.findLeadingComments = function (metadata) { - var leadingComments = []; - var target; - while (this.stack.length > 0) { - var entry = this.stack[this.stack.length - 1]; - if (entry && entry.start >= metadata.start.offset) { - target = entry.node; - this.stack.pop(); - } - else { - break; - } - } - if (target) { - var count = target.leadingComments ? target.leadingComments.length : 0; - for (var i = count - 1; i >= 0; --i) { - var comment = target.leadingComments[i]; - if (comment.range[1] <= metadata.start.offset) { - leadingComments.unshift(comment); - target.leadingComments.splice(i, 1); - } - } - if (target.leadingComments && target.leadingComments.length === 0) { - delete target.leadingComments; - } - return leadingComments; - } - for (var i = this.leading.length - 1; i >= 0; --i) { - var entry = this.leading[i]; - if (entry.start <= metadata.start.offset) { - leadingComments.unshift(entry.comment); - this.leading.splice(i, 1); - } - } - return leadingComments; - }; - CommentHandler.prototype.visitNode = function (node, metadata) { - if (node.type === syntax_1.Syntax.Program && node.body.length > 0) { - return; - } - this.insertInnerComments(node, metadata); - var trailingComments = this.findTrailingComments(metadata); - var leadingComments = this.findLeadingComments(metadata); - if (leadingComments.length > 0) { - node.leadingComments = leadingComments; - } - if (trailingComments.length > 0) { - node.trailingComments = trailingComments; - } - this.stack.push({ - node: node, - start: metadata.start.offset - }); - }; - CommentHandler.prototype.visitComment = function (node, metadata) { - var type = (node.type[0] === 'L') ? 'Line' : 'Block'; - var comment = { - type: type, - value: node.value - }; - if (node.range) { - comment.range = node.range; - } - if (node.loc) { - comment.loc = node.loc; - } - this.comments.push(comment); - if (this.attach) { - var entry = { - comment: { - type: type, - value: node.value, - range: [metadata.start.offset, metadata.end.offset] - }, - start: metadata.start.offset - }; - if (node.loc) { - entry.comment.loc = node.loc; - } - node.type = type; - this.leading.push(entry); - this.trailing.push(entry); - } - }; - CommentHandler.prototype.visit = function (node, metadata) { - if (node.type === 'LineComment') { - this.visitComment(node, metadata); - } - else if (node.type === 'BlockComment') { - this.visitComment(node, metadata); - } - else if (this.attach) { - this.visitNode(node, metadata); - } - }; - return CommentHandler; - }()); - exports.CommentHandler = CommentHandler; + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + var syntax_1 = __webpack_require__(2); + var CommentHandler = (function () { + function CommentHandler() { + this.attach = false; + this.comments = []; + this.stack = []; + this.leading = []; + this.trailing = []; + } + CommentHandler.prototype.insertInnerComments = function (node, metadata) { + // innnerComments for properties empty block + // `function a() {/** comments **\/}` + if (node.type === syntax_1.Syntax.BlockStatement && node.body.length === 0) { + var innerComments = []; + for (var i = this.leading.length - 1; i >= 0; --i) { + var entry = this.leading[i]; + if (metadata.end.offset >= entry.start) { + innerComments.unshift(entry.comment); + this.leading.splice(i, 1); + this.trailing.splice(i, 1); + } + } + if (innerComments.length) { + node.innerComments = innerComments; + } + } + }; + CommentHandler.prototype.findTrailingComments = function (metadata) { + var trailingComments = []; + if (this.trailing.length > 0) { + for (var i = this.trailing.length - 1; i >= 0; --i) { + var entry_1 = this.trailing[i]; + if (entry_1.start >= metadata.end.offset) { + trailingComments.unshift(entry_1.comment); + } + } + this.trailing.length = 0; + return trailingComments; + } + var entry = this.stack[this.stack.length - 1]; + if (entry && entry.node.trailingComments) { + var firstComment = entry.node.trailingComments[0]; + if (firstComment && firstComment.range[0] >= metadata.end.offset) { + trailingComments = entry.node.trailingComments; + delete entry.node.trailingComments; + } + } + return trailingComments; + }; + CommentHandler.prototype.findLeadingComments = function (metadata) { + var leadingComments = []; + var target; + while (this.stack.length > 0) { + var entry = this.stack[this.stack.length - 1]; + if (entry && entry.start >= metadata.start.offset) { + target = entry.node; + this.stack.pop(); + } + else { + break; + } + } + if (target) { + var count = target.leadingComments ? target.leadingComments.length : 0; + for (var i = count - 1; i >= 0; --i) { + var comment = target.leadingComments[i]; + if (comment.range[1] <= metadata.start.offset) { + leadingComments.unshift(comment); + target.leadingComments.splice(i, 1); + } + } + if (target.leadingComments && target.leadingComments.length === 0) { + delete target.leadingComments; + } + return leadingComments; + } + for (var i = this.leading.length - 1; i >= 0; --i) { + var entry = this.leading[i]; + if (entry.start <= metadata.start.offset) { + leadingComments.unshift(entry.comment); + this.leading.splice(i, 1); + } + } + return leadingComments; + }; + CommentHandler.prototype.visitNode = function (node, metadata) { + if (node.type === syntax_1.Syntax.Program && node.body.length > 0) { + return; + } + this.insertInnerComments(node, metadata); + var trailingComments = this.findTrailingComments(metadata); + var leadingComments = this.findLeadingComments(metadata); + if (leadingComments.length > 0) { + node.leadingComments = leadingComments; + } + if (trailingComments.length > 0) { + node.trailingComments = trailingComments; + } + this.stack.push({ + node: node, + start: metadata.start.offset + }); + }; + CommentHandler.prototype.visitComment = function (node, metadata) { + var type = (node.type[0] === 'L') ? 'Line' : 'Block'; + var comment = { + type: type, + value: node.value + }; + if (node.range) { + comment.range = node.range; + } + if (node.loc) { + comment.loc = node.loc; + } + this.comments.push(comment); + if (this.attach) { + var entry = { + comment: { + type: type, + value: node.value, + range: [metadata.start.offset, metadata.end.offset] + }, + start: metadata.start.offset + }; + if (node.loc) { + entry.comment.loc = node.loc; + } + node.type = type; + this.leading.push(entry); + this.trailing.push(entry); + } + }; + CommentHandler.prototype.visit = function (node, metadata) { + if (node.type === 'LineComment') { + this.visitComment(node, metadata); + } + else if (node.type === 'BlockComment') { + this.visitComment(node, metadata); + } + else if (this.attach) { + this.visitNode(node, metadata); + } + }; + return CommentHandler; + }()); + exports.CommentHandler = CommentHandler; /***/ }, /* 2 */ /***/ function(module, exports) { - "use strict"; - Object.defineProperty(exports, "__esModule", { value: true }); - exports.Syntax = { - AssignmentExpression: 'AssignmentExpression', - AssignmentPattern: 'AssignmentPattern', - ArrayExpression: 'ArrayExpression', - ArrayPattern: 'ArrayPattern', - ArrowFunctionExpression: 'ArrowFunctionExpression', - AwaitExpression: 'AwaitExpression', - BlockStatement: 'BlockStatement', - BinaryExpression: 'BinaryExpression', - BreakStatement: 'BreakStatement', - CallExpression: 'CallExpression', - CatchClause: 'CatchClause', - ClassBody: 'ClassBody', - ClassDeclaration: 'ClassDeclaration', - ClassExpression: 'ClassExpression', - ConditionalExpression: 'ConditionalExpression', - ContinueStatement: 'ContinueStatement', - DoWhileStatement: 'DoWhileStatement', - DebuggerStatement: 'DebuggerStatement', - EmptyStatement: 'EmptyStatement', - ExportAllDeclaration: 'ExportAllDeclaration', - ExportDefaultDeclaration: 'ExportDefaultDeclaration', - ExportNamedDeclaration: 'ExportNamedDeclaration', - ExportSpecifier: 'ExportSpecifier', - ExpressionStatement: 'ExpressionStatement', - ForStatement: 'ForStatement', - ForOfStatement: 'ForOfStatement', - ForInStatement: 'ForInStatement', - FunctionDeclaration: 'FunctionDeclaration', - FunctionExpression: 'FunctionExpression', - Identifier: 'Identifier', - IfStatement: 'IfStatement', - ImportDeclaration: 'ImportDeclaration', - ImportDefaultSpecifier: 'ImportDefaultSpecifier', - ImportNamespaceSpecifier: 'ImportNamespaceSpecifier', - ImportSpecifier: 'ImportSpecifier', - Literal: 'Literal', - LabeledStatement: 'LabeledStatement', - LogicalExpression: 'LogicalExpression', - MemberExpression: 'MemberExpression', - MetaProperty: 'MetaProperty', - MethodDefinition: 'MethodDefinition', - NewExpression: 'NewExpression', - ObjectExpression: 'ObjectExpression', - ObjectPattern: 'ObjectPattern', - Program: 'Program', - Property: 'Property', - RestElement: 'RestElement', - ReturnStatement: 'ReturnStatement', - SequenceExpression: 'SequenceExpression', - SpreadElement: 'SpreadElement', - Super: 'Super', - SwitchCase: 'SwitchCase', - SwitchStatement: 'SwitchStatement', - TaggedTemplateExpression: 'TaggedTemplateExpression', - TemplateElement: 'TemplateElement', - TemplateLiteral: 'TemplateLiteral', - ThisExpression: 'ThisExpression', - ThrowStatement: 'ThrowStatement', - TryStatement: 'TryStatement', - UnaryExpression: 'UnaryExpression', - UpdateExpression: 'UpdateExpression', - VariableDeclaration: 'VariableDeclaration', - VariableDeclarator: 'VariableDeclarator', - WhileStatement: 'WhileStatement', - WithStatement: 'WithStatement', - YieldExpression: 'YieldExpression' - }; + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + exports.Syntax = { + AssignmentExpression: 'AssignmentExpression', + AssignmentPattern: 'AssignmentPattern', + ArrayExpression: 'ArrayExpression', + ArrayPattern: 'ArrayPattern', + ArrowFunctionExpression: 'ArrowFunctionExpression', + AwaitExpression: 'AwaitExpression', + BlockStatement: 'BlockStatement', + BinaryExpression: 'BinaryExpression', + BreakStatement: 'BreakStatement', + CallExpression: 'CallExpression', + CatchClause: 'CatchClause', + ClassBody: 'ClassBody', + ClassDeclaration: 'ClassDeclaration', + ClassExpression: 'ClassExpression', + ConditionalExpression: 'ConditionalExpression', + ContinueStatement: 'ContinueStatement', + DoWhileStatement: 'DoWhileStatement', + DebuggerStatement: 'DebuggerStatement', + EmptyStatement: 'EmptyStatement', + ExportAllDeclaration: 'ExportAllDeclaration', + ExportDefaultDeclaration: 'ExportDefaultDeclaration', + ExportNamedDeclaration: 'ExportNamedDeclaration', + ExportSpecifier: 'ExportSpecifier', + ExpressionStatement: 'ExpressionStatement', + ForStatement: 'ForStatement', + ForOfStatement: 'ForOfStatement', + ForInStatement: 'ForInStatement', + FunctionDeclaration: 'FunctionDeclaration', + FunctionExpression: 'FunctionExpression', + Identifier: 'Identifier', + IfStatement: 'IfStatement', + ImportDeclaration: 'ImportDeclaration', + ImportDefaultSpecifier: 'ImportDefaultSpecifier', + ImportNamespaceSpecifier: 'ImportNamespaceSpecifier', + ImportSpecifier: 'ImportSpecifier', + Literal: 'Literal', + LabeledStatement: 'LabeledStatement', + LogicalExpression: 'LogicalExpression', + MemberExpression: 'MemberExpression', + MetaProperty: 'MetaProperty', + MethodDefinition: 'MethodDefinition', + NewExpression: 'NewExpression', + ObjectExpression: 'ObjectExpression', + ObjectPattern: 'ObjectPattern', + Program: 'Program', + Property: 'Property', + RestElement: 'RestElement', + ReturnStatement: 'ReturnStatement', + SequenceExpression: 'SequenceExpression', + SpreadElement: 'SpreadElement', + Super: 'Super', + SwitchCase: 'SwitchCase', + SwitchStatement: 'SwitchStatement', + TaggedTemplateExpression: 'TaggedTemplateExpression', + TemplateElement: 'TemplateElement', + TemplateLiteral: 'TemplateLiteral', + ThisExpression: 'ThisExpression', + ThrowStatement: 'ThrowStatement', + TryStatement: 'TryStatement', + UnaryExpression: 'UnaryExpression', + UpdateExpression: 'UpdateExpression', + VariableDeclaration: 'VariableDeclaration', + VariableDeclarator: 'VariableDeclarator', + WhileStatement: 'WhileStatement', + WithStatement: 'WithStatement', + YieldExpression: 'YieldExpression' + }; /***/ }, /* 3 */ /***/ function(module, exports, __webpack_require__) { - "use strict"; + "use strict"; /* istanbul ignore next */ - var __extends = (this && this.__extends) || (function () { - var extendStatics = Object.setPrototypeOf || - ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) || - function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; }; - return function (d, b) { - extendStatics(d, b); - function __() { this.constructor = d; } - d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); - }; - })(); - Object.defineProperty(exports, "__esModule", { value: true }); - var character_1 = __webpack_require__(4); - var JSXNode = __webpack_require__(5); - var jsx_syntax_1 = __webpack_require__(6); - var Node = __webpack_require__(7); - var parser_1 = __webpack_require__(8); - var token_1 = __webpack_require__(13); - var xhtml_entities_1 = __webpack_require__(14); - token_1.TokenName[100 /* Identifier */] = 'JSXIdentifier'; - token_1.TokenName[101 /* Text */] = 'JSXText'; - // Fully qualified element name, e.g. returns "svg:path" - function getQualifiedElementName(elementName) { - var qualifiedName; - switch (elementName.type) { - case jsx_syntax_1.JSXSyntax.JSXIdentifier: - var id = elementName; - qualifiedName = id.name; - break; - case jsx_syntax_1.JSXSyntax.JSXNamespacedName: - var ns = elementName; - qualifiedName = getQualifiedElementName(ns.namespace) + ':' + - getQualifiedElementName(ns.name); - break; - case jsx_syntax_1.JSXSyntax.JSXMemberExpression: - var expr = elementName; - qualifiedName = getQualifiedElementName(expr.object) + '.' + - getQualifiedElementName(expr.property); - break; - /* istanbul ignore next */ - default: - break; - } - return qualifiedName; - } - var JSXParser = (function (_super) { - __extends(JSXParser, _super); - function JSXParser(code, options, delegate) { - return _super.call(this, code, options, delegate) || this; - } - JSXParser.prototype.parsePrimaryExpression = function () { - return this.match('<') ? this.parseJSXRoot() : _super.prototype.parsePrimaryExpression.call(this); - }; - JSXParser.prototype.startJSX = function () { - // Unwind the scanner before the lookahead token. - this.scanner.index = this.startMarker.index; - this.scanner.lineNumber = this.startMarker.line; - this.scanner.lineStart = this.startMarker.index - this.startMarker.column; - }; - JSXParser.prototype.finishJSX = function () { - // Prime the next lookahead. - this.nextToken(); - }; - JSXParser.prototype.reenterJSX = function () { - this.startJSX(); - this.expectJSX('}'); - // Pop the closing '}' added from the lookahead. - if (this.config.tokens) { - this.tokens.pop(); - } - }; - JSXParser.prototype.createJSXNode = function () { - this.collectComments(); - return { - index: this.scanner.index, - line: this.scanner.lineNumber, - column: this.scanner.index - this.scanner.lineStart - }; - }; - JSXParser.prototype.createJSXChildNode = function () { - return { - index: this.scanner.index, - line: this.scanner.lineNumber, - column: this.scanner.index - this.scanner.lineStart - }; - }; - JSXParser.prototype.scanXHTMLEntity = function (quote) { - var result = '&'; - var valid = true; - var terminated = false; - var numeric = false; - var hex = false; - while (!this.scanner.eof() && valid && !terminated) { - var ch = this.scanner.source[this.scanner.index]; - if (ch === quote) { - break; - } - terminated = (ch === ';'); - result += ch; - ++this.scanner.index; - if (!terminated) { - switch (result.length) { - case 2: - // e.g. '{' - numeric = (ch === '#'); - break; - case 3: - if (numeric) { - // e.g. 'A' - hex = (ch === 'x'); - valid = hex || character_1.Character.isDecimalDigit(ch.charCodeAt(0)); - numeric = numeric && !hex; - } - break; - default: - valid = valid && !(numeric && !character_1.Character.isDecimalDigit(ch.charCodeAt(0))); - valid = valid && !(hex && !character_1.Character.isHexDigit(ch.charCodeAt(0))); - break; - } - } - } - if (valid && terminated && result.length > 2) { - // e.g. 'A' becomes just '#x41' - var str = result.substr(1, result.length - 2); - if (numeric && str.length > 1) { - result = String.fromCharCode(parseInt(str.substr(1), 10)); - } - else if (hex && str.length > 2) { - result = String.fromCharCode(parseInt('0' + str.substr(1), 16)); - } - else if (!numeric && !hex && xhtml_entities_1.XHTMLEntities[str]) { - result = xhtml_entities_1.XHTMLEntities[str]; - } - } - return result; - }; - // Scan the next JSX token. This replaces Scanner#lex when in JSX mode. - JSXParser.prototype.lexJSX = function () { - var cp = this.scanner.source.charCodeAt(this.scanner.index); - // < > / : = { } - if (cp === 60 || cp === 62 || cp === 47 || cp === 58 || cp === 61 || cp === 123 || cp === 125) { - var value = this.scanner.source[this.scanner.index++]; - return { - type: 7 /* Punctuator */, - value: value, - lineNumber: this.scanner.lineNumber, - lineStart: this.scanner.lineStart, - start: this.scanner.index - 1, - end: this.scanner.index - }; - } - // " ' - if (cp === 34 || cp === 39) { - var start = this.scanner.index; - var quote = this.scanner.source[this.scanner.index++]; - var str = ''; - while (!this.scanner.eof()) { - var ch = this.scanner.source[this.scanner.index++]; - if (ch === quote) { - break; - } - else if (ch === '&') { - str += this.scanXHTMLEntity(quote); - } - else { - str += ch; - } - } - return { - type: 8 /* StringLiteral */, - value: str, - lineNumber: this.scanner.lineNumber, - lineStart: this.scanner.lineStart, - start: start, - end: this.scanner.index - }; - } - // ... or . - if (cp === 46) { - var n1 = this.scanner.source.charCodeAt(this.scanner.index + 1); - var n2 = this.scanner.source.charCodeAt(this.scanner.index + 2); - var value = (n1 === 46 && n2 === 46) ? '...' : '.'; - var start = this.scanner.index; - this.scanner.index += value.length; - return { - type: 7 /* Punctuator */, - value: value, - lineNumber: this.scanner.lineNumber, - lineStart: this.scanner.lineStart, - start: start, - end: this.scanner.index - }; - } - // ` - if (cp === 96) { - // Only placeholder, since it will be rescanned as a real assignment expression. - return { - type: 10 /* Template */, - value: '', - lineNumber: this.scanner.lineNumber, - lineStart: this.scanner.lineStart, - start: this.scanner.index, - end: this.scanner.index - }; - } - // Identifer can not contain backslash (char code 92). - if (character_1.Character.isIdentifierStart(cp) && (cp !== 92)) { - var start = this.scanner.index; - ++this.scanner.index; - while (!this.scanner.eof()) { - var ch = this.scanner.source.charCodeAt(this.scanner.index); - if (character_1.Character.isIdentifierPart(ch) && (ch !== 92)) { - ++this.scanner.index; - } - else if (ch === 45) { - // Hyphen (char code 45) can be part of an identifier. - ++this.scanner.index; - } - else { - break; - } - } - var id = this.scanner.source.slice(start, this.scanner.index); - return { - type: 100 /* Identifier */, - value: id, - lineNumber: this.scanner.lineNumber, - lineStart: this.scanner.lineStart, - start: start, - end: this.scanner.index - }; - } - return this.scanner.lex(); - }; - JSXParser.prototype.nextJSXToken = function () { - this.collectComments(); - this.startMarker.index = this.scanner.index; - this.startMarker.line = this.scanner.lineNumber; - this.startMarker.column = this.scanner.index - this.scanner.lineStart; - var token = this.lexJSX(); - this.lastMarker.index = this.scanner.index; - this.lastMarker.line = this.scanner.lineNumber; - this.lastMarker.column = this.scanner.index - this.scanner.lineStart; - if (this.config.tokens) { - this.tokens.push(this.convertToken(token)); - } - return token; - }; - JSXParser.prototype.nextJSXText = function () { - this.startMarker.index = this.scanner.index; - this.startMarker.line = this.scanner.lineNumber; - this.startMarker.column = this.scanner.index - this.scanner.lineStart; - var start = this.scanner.index; - var text = ''; - while (!this.scanner.eof()) { - var ch = this.scanner.source[this.scanner.index]; - if (ch === '{' || ch === '<') { - break; - } - ++this.scanner.index; - text += ch; - if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) { - ++this.scanner.lineNumber; - if (ch === '\r' && this.scanner.source[this.scanner.index] === '\n') { - ++this.scanner.index; - } - this.scanner.lineStart = this.scanner.index; - } - } - this.lastMarker.index = this.scanner.index; - this.lastMarker.line = this.scanner.lineNumber; - this.lastMarker.column = this.scanner.index - this.scanner.lineStart; - var token = { - type: 101 /* Text */, - value: text, - lineNumber: this.scanner.lineNumber, - lineStart: this.scanner.lineStart, - start: start, - end: this.scanner.index - }; - if ((text.length > 0) && this.config.tokens) { - this.tokens.push(this.convertToken(token)); - } - return token; - }; - JSXParser.prototype.peekJSXToken = function () { - var state = this.scanner.saveState(); - this.scanner.scanComments(); - var next = this.lexJSX(); - this.scanner.restoreState(state); - return next; - }; - // Expect the next JSX token to match the specified punctuator. - // If not, an exception will be thrown. - JSXParser.prototype.expectJSX = function (value) { - var token = this.nextJSXToken(); - if (token.type !== 7 /* Punctuator */ || token.value !== value) { - this.throwUnexpectedToken(token); - } - }; - // Return true if the next JSX token matches the specified punctuator. - JSXParser.prototype.matchJSX = function (value) { - var next = this.peekJSXToken(); - return next.type === 7 /* Punctuator */ && next.value === value; - }; - JSXParser.prototype.parseJSXIdentifier = function () { - var node = this.createJSXNode(); - var token = this.nextJSXToken(); - if (token.type !== 100 /* Identifier */) { - this.throwUnexpectedToken(token); - } - return this.finalize(node, new JSXNode.JSXIdentifier(token.value)); - }; - JSXParser.prototype.parseJSXElementName = function () { - var node = this.createJSXNode(); - var elementName = this.parseJSXIdentifier(); - if (this.matchJSX(':')) { - var namespace = elementName; - this.expectJSX(':'); - var name_1 = this.parseJSXIdentifier(); - elementName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_1)); - } - else if (this.matchJSX('.')) { - while (this.matchJSX('.')) { - var object = elementName; - this.expectJSX('.'); - var property = this.parseJSXIdentifier(); - elementName = this.finalize(node, new JSXNode.JSXMemberExpression(object, property)); - } - } - return elementName; - }; - JSXParser.prototype.parseJSXAttributeName = function () { - var node = this.createJSXNode(); - var attributeName; - var identifier = this.parseJSXIdentifier(); - if (this.matchJSX(':')) { - var namespace = identifier; - this.expectJSX(':'); - var name_2 = this.parseJSXIdentifier(); - attributeName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_2)); - } - else { - attributeName = identifier; - } - return attributeName; - }; - JSXParser.prototype.parseJSXStringLiteralAttribute = function () { - var node = this.createJSXNode(); - var token = this.nextJSXToken(); - if (token.type !== 8 /* StringLiteral */) { - this.throwUnexpectedToken(token); - } - var raw = this.getTokenRaw(token); - return this.finalize(node, new Node.Literal(token.value, raw)); - }; - JSXParser.prototype.parseJSXExpressionAttribute = function () { - var node = this.createJSXNode(); - this.expectJSX('{'); - this.finishJSX(); - if (this.match('}')) { - this.tolerateError('JSX attributes must only be assigned a non-empty expression'); - } - var expression = this.parseAssignmentExpression(); - this.reenterJSX(); - return this.finalize(node, new JSXNode.JSXExpressionContainer(expression)); - }; - JSXParser.prototype.parseJSXAttributeValue = function () { - return this.matchJSX('{') ? this.parseJSXExpressionAttribute() : - this.matchJSX('<') ? this.parseJSXElement() : this.parseJSXStringLiteralAttribute(); - }; - JSXParser.prototype.parseJSXNameValueAttribute = function () { - var node = this.createJSXNode(); - var name = this.parseJSXAttributeName(); - var value = null; - if (this.matchJSX('=')) { - this.expectJSX('='); - value = this.parseJSXAttributeValue(); - } - return this.finalize(node, new JSXNode.JSXAttribute(name, value)); - }; - JSXParser.prototype.parseJSXSpreadAttribute = function () { - var node = this.createJSXNode(); - this.expectJSX('{'); - this.expectJSX('...'); - this.finishJSX(); - var argument = this.parseAssignmentExpression(); - this.reenterJSX(); - return this.finalize(node, new JSXNode.JSXSpreadAttribute(argument)); - }; - JSXParser.prototype.parseJSXAttributes = function () { - var attributes = []; - while (!this.matchJSX('/') && !this.matchJSX('>')) { - var attribute = this.matchJSX('{') ? this.parseJSXSpreadAttribute() : - this.parseJSXNameValueAttribute(); - attributes.push(attribute); - } - return attributes; - }; - JSXParser.prototype.parseJSXOpeningElement = function () { - var node = this.createJSXNode(); - this.expectJSX('<'); - var name = this.parseJSXElementName(); - var attributes = this.parseJSXAttributes(); - var selfClosing = this.matchJSX('/'); - if (selfClosing) { - this.expectJSX('/'); - } - this.expectJSX('>'); - return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes)); - }; - JSXParser.prototype.parseJSXBoundaryElement = function () { - var node = this.createJSXNode(); - this.expectJSX('<'); - if (this.matchJSX('/')) { - this.expectJSX('/'); - var name_3 = this.parseJSXElementName(); - this.expectJSX('>'); - return this.finalize(node, new JSXNode.JSXClosingElement(name_3)); - } - var name = this.parseJSXElementName(); - var attributes = this.parseJSXAttributes(); - var selfClosing = this.matchJSX('/'); - if (selfClosing) { - this.expectJSX('/'); - } - this.expectJSX('>'); - return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes)); - }; - JSXParser.prototype.parseJSXEmptyExpression = function () { - var node = this.createJSXChildNode(); - this.collectComments(); - this.lastMarker.index = this.scanner.index; - this.lastMarker.line = this.scanner.lineNumber; - this.lastMarker.column = this.scanner.index - this.scanner.lineStart; - return this.finalize(node, new JSXNode.JSXEmptyExpression()); - }; - JSXParser.prototype.parseJSXExpressionContainer = function () { - var node = this.createJSXNode(); - this.expectJSX('{'); - var expression; - if (this.matchJSX('}')) { - expression = this.parseJSXEmptyExpression(); - this.expectJSX('}'); - } - else { - this.finishJSX(); - expression = this.parseAssignmentExpression(); - this.reenterJSX(); - } - return this.finalize(node, new JSXNode.JSXExpressionContainer(expression)); - }; - JSXParser.prototype.parseJSXChildren = function () { - var children = []; - while (!this.scanner.eof()) { - var node = this.createJSXChildNode(); - var token = this.nextJSXText(); - if (token.start < token.end) { - var raw = this.getTokenRaw(token); - var child = this.finalize(node, new JSXNode.JSXText(token.value, raw)); - children.push(child); - } - if (this.scanner.source[this.scanner.index] === '{') { - var container = this.parseJSXExpressionContainer(); - children.push(container); - } - else { - break; - } - } - return children; - }; - JSXParser.prototype.parseComplexJSXElement = function (el) { - var stack = []; - while (!this.scanner.eof()) { - el.children = el.children.concat(this.parseJSXChildren()); - var node = this.createJSXChildNode(); - var element = this.parseJSXBoundaryElement(); - if (element.type === jsx_syntax_1.JSXSyntax.JSXOpeningElement) { - var opening = element; - if (opening.selfClosing) { - var child = this.finalize(node, new JSXNode.JSXElement(opening, [], null)); - el.children.push(child); - } - else { - stack.push(el); - el = { node: node, opening: opening, closing: null, children: [] }; - } - } - if (element.type === jsx_syntax_1.JSXSyntax.JSXClosingElement) { - el.closing = element; - var open_1 = getQualifiedElementName(el.opening.name); - var close_1 = getQualifiedElementName(el.closing.name); - if (open_1 !== close_1) { - this.tolerateError('Expected corresponding JSX closing tag for %0', open_1); - } - if (stack.length > 0) { - var child = this.finalize(el.node, new JSXNode.JSXElement(el.opening, el.children, el.closing)); - el = stack[stack.length - 1]; - el.children.push(child); - stack.pop(); - } - else { - break; - } - } - } - return el; - }; - JSXParser.prototype.parseJSXElement = function () { - var node = this.createJSXNode(); - var opening = this.parseJSXOpeningElement(); - var children = []; - var closing = null; - if (!opening.selfClosing) { - var el = this.parseComplexJSXElement({ node: node, opening: opening, closing: closing, children: children }); - children = el.children; - closing = el.closing; - } - return this.finalize(node, new JSXNode.JSXElement(opening, children, closing)); - }; - JSXParser.prototype.parseJSXRoot = function () { - // Pop the opening '<' added from the lookahead. - if (this.config.tokens) { - this.tokens.pop(); - } - this.startJSX(); - var element = this.parseJSXElement(); - this.finishJSX(); - return element; - }; - JSXParser.prototype.isStartOfExpression = function () { - return _super.prototype.isStartOfExpression.call(this) || this.match('<'); - }; - return JSXParser; - }(parser_1.Parser)); - exports.JSXParser = JSXParser; + var __extends = (this && this.__extends) || (function () { + var extendStatics = Object.setPrototypeOf || + ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) || + function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; }; + return function (d, b) { + extendStatics(d, b); + function __() { this.constructor = d; } + d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); + }; + })(); + Object.defineProperty(exports, "__esModule", { value: true }); + var character_1 = __webpack_require__(4); + var JSXNode = __webpack_require__(5); + var jsx_syntax_1 = __webpack_require__(6); + var Node = __webpack_require__(7); + var parser_1 = __webpack_require__(8); + var token_1 = __webpack_require__(13); + var xhtml_entities_1 = __webpack_require__(14); + token_1.TokenName[100 /* Identifier */] = 'JSXIdentifier'; + token_1.TokenName[101 /* Text */] = 'JSXText'; + // Fully qualified element name, e.g. returns "svg:path" + function getQualifiedElementName(elementName) { + var qualifiedName; + switch (elementName.type) { + case jsx_syntax_1.JSXSyntax.JSXIdentifier: + var id = elementName; + qualifiedName = id.name; + break; + case jsx_syntax_1.JSXSyntax.JSXNamespacedName: + var ns = elementName; + qualifiedName = getQualifiedElementName(ns.namespace) + ':' + + getQualifiedElementName(ns.name); + break; + case jsx_syntax_1.JSXSyntax.JSXMemberExpression: + var expr = elementName; + qualifiedName = getQualifiedElementName(expr.object) + '.' + + getQualifiedElementName(expr.property); + break; + /* istanbul ignore next */ + default: + break; + } + return qualifiedName; + } + var JSXParser = (function (_super) { + __extends(JSXParser, _super); + function JSXParser(code, options, delegate) { + return _super.call(this, code, options, delegate) || this; + } + JSXParser.prototype.parsePrimaryExpression = function () { + return this.match('<') ? this.parseJSXRoot() : _super.prototype.parsePrimaryExpression.call(this); + }; + JSXParser.prototype.startJSX = function () { + // Unwind the scanner before the lookahead token. + this.scanner.index = this.startMarker.index; + this.scanner.lineNumber = this.startMarker.line; + this.scanner.lineStart = this.startMarker.index - this.startMarker.column; + }; + JSXParser.prototype.finishJSX = function () { + // Prime the next lookahead. + this.nextToken(); + }; + JSXParser.prototype.reenterJSX = function () { + this.startJSX(); + this.expectJSX('}'); + // Pop the closing '}' added from the lookahead. + if (this.config.tokens) { + this.tokens.pop(); + } + }; + JSXParser.prototype.createJSXNode = function () { + this.collectComments(); + return { + index: this.scanner.index, + line: this.scanner.lineNumber, + column: this.scanner.index - this.scanner.lineStart + }; + }; + JSXParser.prototype.createJSXChildNode = function () { + return { + index: this.scanner.index, + line: this.scanner.lineNumber, + column: this.scanner.index - this.scanner.lineStart + }; + }; + JSXParser.prototype.scanXHTMLEntity = function (quote) { + var result = '&'; + var valid = true; + var terminated = false; + var numeric = false; + var hex = false; + while (!this.scanner.eof() && valid && !terminated) { + var ch = this.scanner.source[this.scanner.index]; + if (ch === quote) { + break; + } + terminated = (ch === ';'); + result += ch; + ++this.scanner.index; + if (!terminated) { + switch (result.length) { + case 2: + // e.g. '{' + numeric = (ch === '#'); + break; + case 3: + if (numeric) { + // e.g. 'A' + hex = (ch === 'x'); + valid = hex || character_1.Character.isDecimalDigit(ch.charCodeAt(0)); + numeric = numeric && !hex; + } + break; + default: + valid = valid && !(numeric && !character_1.Character.isDecimalDigit(ch.charCodeAt(0))); + valid = valid && !(hex && !character_1.Character.isHexDigit(ch.charCodeAt(0))); + break; + } + } + } + if (valid && terminated && result.length > 2) { + // e.g. 'A' becomes just '#x41' + var str = result.substr(1, result.length - 2); + if (numeric && str.length > 1) { + result = String.fromCharCode(parseInt(str.substr(1), 10)); + } + else if (hex && str.length > 2) { + result = String.fromCharCode(parseInt('0' + str.substr(1), 16)); + } + else if (!numeric && !hex && xhtml_entities_1.XHTMLEntities[str]) { + result = xhtml_entities_1.XHTMLEntities[str]; + } + } + return result; + }; + // Scan the next JSX token. This replaces Scanner#lex when in JSX mode. + JSXParser.prototype.lexJSX = function () { + var cp = this.scanner.source.charCodeAt(this.scanner.index); + // < > / : = { } + if (cp === 60 || cp === 62 || cp === 47 || cp === 58 || cp === 61 || cp === 123 || cp === 125) { + var value = this.scanner.source[this.scanner.index++]; + return { + type: 7 /* Punctuator */, + value: value, + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: this.scanner.index - 1, + end: this.scanner.index + }; + } + // " ' + if (cp === 34 || cp === 39) { + var start = this.scanner.index; + var quote = this.scanner.source[this.scanner.index++]; + var str = ''; + while (!this.scanner.eof()) { + var ch = this.scanner.source[this.scanner.index++]; + if (ch === quote) { + break; + } + else if (ch === '&') { + str += this.scanXHTMLEntity(quote); + } + else { + str += ch; + } + } + return { + type: 8 /* StringLiteral */, + value: str, + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: start, + end: this.scanner.index + }; + } + // ... or . + if (cp === 46) { + var n1 = this.scanner.source.charCodeAt(this.scanner.index + 1); + var n2 = this.scanner.source.charCodeAt(this.scanner.index + 2); + var value = (n1 === 46 && n2 === 46) ? '...' : '.'; + var start = this.scanner.index; + this.scanner.index += value.length; + return { + type: 7 /* Punctuator */, + value: value, + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: start, + end: this.scanner.index + }; + } + // ` + if (cp === 96) { + // Only placeholder, since it will be rescanned as a real assignment expression. + return { + type: 10 /* Template */, + value: '', + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: this.scanner.index, + end: this.scanner.index + }; + } + // Identifer can not contain backslash (char code 92). + if (character_1.Character.isIdentifierStart(cp) && (cp !== 92)) { + var start = this.scanner.index; + ++this.scanner.index; + while (!this.scanner.eof()) { + var ch = this.scanner.source.charCodeAt(this.scanner.index); + if (character_1.Character.isIdentifierPart(ch) && (ch !== 92)) { + ++this.scanner.index; + } + else if (ch === 45) { + // Hyphen (char code 45) can be part of an identifier. + ++this.scanner.index; + } + else { + break; + } + } + var id = this.scanner.source.slice(start, this.scanner.index); + return { + type: 100 /* Identifier */, + value: id, + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: start, + end: this.scanner.index + }; + } + return this.scanner.lex(); + }; + JSXParser.prototype.nextJSXToken = function () { + this.collectComments(); + this.startMarker.index = this.scanner.index; + this.startMarker.line = this.scanner.lineNumber; + this.startMarker.column = this.scanner.index - this.scanner.lineStart; + var token = this.lexJSX(); + this.lastMarker.index = this.scanner.index; + this.lastMarker.line = this.scanner.lineNumber; + this.lastMarker.column = this.scanner.index - this.scanner.lineStart; + if (this.config.tokens) { + this.tokens.push(this.convertToken(token)); + } + return token; + }; + JSXParser.prototype.nextJSXText = function () { + this.startMarker.index = this.scanner.index; + this.startMarker.line = this.scanner.lineNumber; + this.startMarker.column = this.scanner.index - this.scanner.lineStart; + var start = this.scanner.index; + var text = ''; + while (!this.scanner.eof()) { + var ch = this.scanner.source[this.scanner.index]; + if (ch === '{' || ch === '<') { + break; + } + ++this.scanner.index; + text += ch; + if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) { + ++this.scanner.lineNumber; + if (ch === '\r' && this.scanner.source[this.scanner.index] === '\n') { + ++this.scanner.index; + } + this.scanner.lineStart = this.scanner.index; + } + } + this.lastMarker.index = this.scanner.index; + this.lastMarker.line = this.scanner.lineNumber; + this.lastMarker.column = this.scanner.index - this.scanner.lineStart; + var token = { + type: 101 /* Text */, + value: text, + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: start, + end: this.scanner.index + }; + if ((text.length > 0) && this.config.tokens) { + this.tokens.push(this.convertToken(token)); + } + return token; + }; + JSXParser.prototype.peekJSXToken = function () { + var state = this.scanner.saveState(); + this.scanner.scanComments(); + var next = this.lexJSX(); + this.scanner.restoreState(state); + return next; + }; + // Expect the next JSX token to match the specified punctuator. + // If not, an exception will be thrown. + JSXParser.prototype.expectJSX = function (value) { + var token = this.nextJSXToken(); + if (token.type !== 7 /* Punctuator */ || token.value !== value) { + this.throwUnexpectedToken(token); + } + }; + // Return true if the next JSX token matches the specified punctuator. + JSXParser.prototype.matchJSX = function (value) { + var next = this.peekJSXToken(); + return next.type === 7 /* Punctuator */ && next.value === value; + }; + JSXParser.prototype.parseJSXIdentifier = function () { + var node = this.createJSXNode(); + var token = this.nextJSXToken(); + if (token.type !== 100 /* Identifier */) { + this.throwUnexpectedToken(token); + } + return this.finalize(node, new JSXNode.JSXIdentifier(token.value)); + }; + JSXParser.prototype.parseJSXElementName = function () { + var node = this.createJSXNode(); + var elementName = this.parseJSXIdentifier(); + if (this.matchJSX(':')) { + var namespace = elementName; + this.expectJSX(':'); + var name_1 = this.parseJSXIdentifier(); + elementName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_1)); + } + else if (this.matchJSX('.')) { + while (this.matchJSX('.')) { + var object = elementName; + this.expectJSX('.'); + var property = this.parseJSXIdentifier(); + elementName = this.finalize(node, new JSXNode.JSXMemberExpression(object, property)); + } + } + return elementName; + }; + JSXParser.prototype.parseJSXAttributeName = function () { + var node = this.createJSXNode(); + var attributeName; + var identifier = this.parseJSXIdentifier(); + if (this.matchJSX(':')) { + var namespace = identifier; + this.expectJSX(':'); + var name_2 = this.parseJSXIdentifier(); + attributeName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_2)); + } + else { + attributeName = identifier; + } + return attributeName; + }; + JSXParser.prototype.parseJSXStringLiteralAttribute = function () { + var node = this.createJSXNode(); + var token = this.nextJSXToken(); + if (token.type !== 8 /* StringLiteral */) { + this.throwUnexpectedToken(token); + } + var raw = this.getTokenRaw(token); + return this.finalize(node, new Node.Literal(token.value, raw)); + }; + JSXParser.prototype.parseJSXExpressionAttribute = function () { + var node = this.createJSXNode(); + this.expectJSX('{'); + this.finishJSX(); + if (this.match('}')) { + this.tolerateError('JSX attributes must only be assigned a non-empty expression'); + } + var expression = this.parseAssignmentExpression(); + this.reenterJSX(); + return this.finalize(node, new JSXNode.JSXExpressionContainer(expression)); + }; + JSXParser.prototype.parseJSXAttributeValue = function () { + return this.matchJSX('{') ? this.parseJSXExpressionAttribute() : + this.matchJSX('<') ? this.parseJSXElement() : this.parseJSXStringLiteralAttribute(); + }; + JSXParser.prototype.parseJSXNameValueAttribute = function () { + var node = this.createJSXNode(); + var name = this.parseJSXAttributeName(); + var value = null; + if (this.matchJSX('=')) { + this.expectJSX('='); + value = this.parseJSXAttributeValue(); + } + return this.finalize(node, new JSXNode.JSXAttribute(name, value)); + }; + JSXParser.prototype.parseJSXSpreadAttribute = function () { + var node = this.createJSXNode(); + this.expectJSX('{'); + this.expectJSX('...'); + this.finishJSX(); + var argument = this.parseAssignmentExpression(); + this.reenterJSX(); + return this.finalize(node, new JSXNode.JSXSpreadAttribute(argument)); + }; + JSXParser.prototype.parseJSXAttributes = function () { + var attributes = []; + while (!this.matchJSX('/') && !this.matchJSX('>')) { + var attribute = this.matchJSX('{') ? this.parseJSXSpreadAttribute() : + this.parseJSXNameValueAttribute(); + attributes.push(attribute); + } + return attributes; + }; + JSXParser.prototype.parseJSXOpeningElement = function () { + var node = this.createJSXNode(); + this.expectJSX('<'); + var name = this.parseJSXElementName(); + var attributes = this.parseJSXAttributes(); + var selfClosing = this.matchJSX('/'); + if (selfClosing) { + this.expectJSX('/'); + } + this.expectJSX('>'); + return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes)); + }; + JSXParser.prototype.parseJSXBoundaryElement = function () { + var node = this.createJSXNode(); + this.expectJSX('<'); + if (this.matchJSX('/')) { + this.expectJSX('/'); + var name_3 = this.parseJSXElementName(); + this.expectJSX('>'); + return this.finalize(node, new JSXNode.JSXClosingElement(name_3)); + } + var name = this.parseJSXElementName(); + var attributes = this.parseJSXAttributes(); + var selfClosing = this.matchJSX('/'); + if (selfClosing) { + this.expectJSX('/'); + } + this.expectJSX('>'); + return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes)); + }; + JSXParser.prototype.parseJSXEmptyExpression = function () { + var node = this.createJSXChildNode(); + this.collectComments(); + this.lastMarker.index = this.scanner.index; + this.lastMarker.line = this.scanner.lineNumber; + this.lastMarker.column = this.scanner.index - this.scanner.lineStart; + return this.finalize(node, new JSXNode.JSXEmptyExpression()); + }; + JSXParser.prototype.parseJSXExpressionContainer = function () { + var node = this.createJSXNode(); + this.expectJSX('{'); + var expression; + if (this.matchJSX('}')) { + expression = this.parseJSXEmptyExpression(); + this.expectJSX('}'); + } + else { + this.finishJSX(); + expression = this.parseAssignmentExpression(); + this.reenterJSX(); + } + return this.finalize(node, new JSXNode.JSXExpressionContainer(expression)); + }; + JSXParser.prototype.parseJSXChildren = function () { + var children = []; + while (!this.scanner.eof()) { + var node = this.createJSXChildNode(); + var token = this.nextJSXText(); + if (token.start < token.end) { + var raw = this.getTokenRaw(token); + var child = this.finalize(node, new JSXNode.JSXText(token.value, raw)); + children.push(child); + } + if (this.scanner.source[this.scanner.index] === '{') { + var container = this.parseJSXExpressionContainer(); + children.push(container); + } + else { + break; + } + } + return children; + }; + JSXParser.prototype.parseComplexJSXElement = function (el) { + var stack = []; + while (!this.scanner.eof()) { + el.children = el.children.concat(this.parseJSXChildren()); + var node = this.createJSXChildNode(); + var element = this.parseJSXBoundaryElement(); + if (element.type === jsx_syntax_1.JSXSyntax.JSXOpeningElement) { + var opening = element; + if (opening.selfClosing) { + var child = this.finalize(node, new JSXNode.JSXElement(opening, [], null)); + el.children.push(child); + } + else { + stack.push(el); + el = { node: node, opening: opening, closing: null, children: [] }; + } + } + if (element.type === jsx_syntax_1.JSXSyntax.JSXClosingElement) { + el.closing = element; + var open_1 = getQualifiedElementName(el.opening.name); + var close_1 = getQualifiedElementName(el.closing.name); + if (open_1 !== close_1) { + this.tolerateError('Expected corresponding JSX closing tag for %0', open_1); + } + if (stack.length > 0) { + var child = this.finalize(el.node, new JSXNode.JSXElement(el.opening, el.children, el.closing)); + el = stack[stack.length - 1]; + el.children.push(child); + stack.pop(); + } + else { + break; + } + } + } + return el; + }; + JSXParser.prototype.parseJSXElement = function () { + var node = this.createJSXNode(); + var opening = this.parseJSXOpeningElement(); + var children = []; + var closing = null; + if (!opening.selfClosing) { + var el = this.parseComplexJSXElement({ node: node, opening: opening, closing: closing, children: children }); + children = el.children; + closing = el.closing; + } + return this.finalize(node, new JSXNode.JSXElement(opening, children, closing)); + }; + JSXParser.prototype.parseJSXRoot = function () { + // Pop the opening '<' added from the lookahead. + if (this.config.tokens) { + this.tokens.pop(); + } + this.startJSX(); + var element = this.parseJSXElement(); + this.finishJSX(); + return element; + }; + JSXParser.prototype.isStartOfExpression = function () { + return _super.prototype.isStartOfExpression.call(this) || this.match('<'); + }; + return JSXParser; + }(parser_1.Parser)); + exports.JSXParser = JSXParser; /***/ }, /* 4 */ /***/ function(module, exports) { - "use strict"; - Object.defineProperty(exports, "__esModule", { value: true }); - // See also tools/generate-unicode-regex.js. - var Regex = { - // Unicode v8.0.0 NonAsciiIdentifierStart: - NonAsciiIdentifierStart: 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- // Unicode v8.0.0 NonAsciiIdentifierPart: - NonAsciiIdentifierPart: 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- }; - exports.Character = { - /* tslint:disable:no-bitwise */ - fromCodePoint: function (cp) { - return (cp < 0x10000) ? String.fromCharCode(cp) : - String.fromCharCode(0xD800 + ((cp - 0x10000) >> 10)) + - String.fromCharCode(0xDC00 + ((cp - 0x10000) & 1023)); - }, - // https://tc39.github.io/ecma262/#sec-white-space - isWhiteSpace: function (cp) { - return (cp === 0x20) || (cp === 0x09) || (cp === 0x0B) || (cp === 0x0C) || (cp === 0xA0) || - (cp >= 0x1680 && [0x1680, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(cp) >= 0); - }, - // https://tc39.github.io/ecma262/#sec-line-terminators - isLineTerminator: function (cp) { - return (cp === 0x0A) || (cp === 0x0D) || (cp === 0x2028) || (cp === 0x2029); - }, - // https://tc39.github.io/ecma262/#sec-names-and-keywords - isIdentifierStart: function (cp) { - return (cp === 0x24) || (cp === 0x5F) || - (cp >= 0x41 && cp <= 0x5A) || - (cp >= 0x61 && cp <= 0x7A) || - (cp === 0x5C) || - ((cp >= 0x80) && Regex.NonAsciiIdentifierStart.test(exports.Character.fromCodePoint(cp))); - }, - isIdentifierPart: function (cp) { - return (cp === 0x24) || (cp === 0x5F) || - (cp >= 0x41 && cp <= 0x5A) || - (cp >= 0x61 && cp <= 0x7A) || - (cp >= 0x30 && cp <= 0x39) || - (cp === 0x5C) || - ((cp >= 0x80) && Regex.NonAsciiIdentifierPart.test(exports.Character.fromCodePoint(cp))); - }, - // https://tc39.github.io/ecma262/#sec-literals-numeric-literals - isDecimalDigit: function (cp) { - return (cp >= 0x30 && cp <= 0x39); // 0..9 - }, - isHexDigit: function (cp) { - return (cp >= 0x30 && cp <= 0x39) || - (cp >= 0x41 && cp <= 0x46) || - (cp >= 0x61 && cp <= 0x66); // a..f - }, - isOctalDigit: function (cp) { - return (cp >= 0x30 && cp <= 0x37); // 0..7 - } - }; + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + // See also tools/generate-unicode-regex.js. + var Regex = { + // Unicode v8.0.0 NonAsciiIdentifierStart: + NonAsciiIdentifierStart: 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+ // Unicode v8.0.0 NonAsciiIdentifierPart: + NonAsciiIdentifierPart: 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+ }; + exports.Character = { + /* tslint:disable:no-bitwise */ + fromCodePoint: function (cp) { + return (cp < 0x10000) ? String.fromCharCode(cp) : + String.fromCharCode(0xD800 + ((cp - 0x10000) >> 10)) + + String.fromCharCode(0xDC00 + ((cp - 0x10000) & 1023)); + }, + // https://tc39.github.io/ecma262/#sec-white-space + isWhiteSpace: function (cp) { + return (cp === 0x20) || (cp === 0x09) || (cp === 0x0B) || (cp === 0x0C) || (cp === 0xA0) || + (cp >= 0x1680 && [0x1680, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(cp) >= 0); + }, + // https://tc39.github.io/ecma262/#sec-line-terminators + isLineTerminator: function (cp) { + return (cp === 0x0A) || (cp === 0x0D) || (cp === 0x2028) || (cp === 0x2029); + }, + // https://tc39.github.io/ecma262/#sec-names-and-keywords + isIdentifierStart: function (cp) { + return (cp === 0x24) || (cp === 0x5F) || + (cp >= 0x41 && cp <= 0x5A) || + (cp >= 0x61 && cp <= 0x7A) || + (cp === 0x5C) || + ((cp >= 0x80) && Regex.NonAsciiIdentifierStart.test(exports.Character.fromCodePoint(cp))); + }, + isIdentifierPart: function (cp) { + return (cp === 0x24) || (cp === 0x5F) || + (cp >= 0x41 && cp <= 0x5A) || + (cp >= 0x61 && cp <= 0x7A) || + (cp >= 0x30 && cp <= 0x39) || + (cp === 0x5C) || + ((cp >= 0x80) && Regex.NonAsciiIdentifierPart.test(exports.Character.fromCodePoint(cp))); + }, + // https://tc39.github.io/ecma262/#sec-literals-numeric-literals + isDecimalDigit: function (cp) { + return (cp >= 0x30 && cp <= 0x39); // 0..9 + }, + isHexDigit: function (cp) { + return (cp >= 0x30 && cp <= 0x39) || + (cp >= 0x41 && cp <= 0x46) || + (cp >= 0x61 && cp <= 0x66); // a..f + }, + isOctalDigit: function (cp) { + return (cp >= 0x30 && cp <= 0x37); // 0..7 + } + }; /***/ }, /* 5 */ /***/ function(module, exports, __webpack_require__) { - "use strict"; - Object.defineProperty(exports, "__esModule", { value: true }); - var jsx_syntax_1 = __webpack_require__(6); - /* tslint:disable:max-classes-per-file */ - var JSXClosingElement = (function () { - function JSXClosingElement(name) { - this.type = jsx_syntax_1.JSXSyntax.JSXClosingElement; - this.name = name; - } - return JSXClosingElement; - }()); - exports.JSXClosingElement = JSXClosingElement; - var JSXElement = (function () { - function JSXElement(openingElement, children, closingElement) { - this.type = jsx_syntax_1.JSXSyntax.JSXElement; - this.openingElement = openingElement; - this.children = children; - this.closingElement = closingElement; - } - return JSXElement; - }()); - exports.JSXElement = JSXElement; - var JSXEmptyExpression = (function () { - function JSXEmptyExpression() { - this.type = jsx_syntax_1.JSXSyntax.JSXEmptyExpression; - } - return JSXEmptyExpression; - }()); - exports.JSXEmptyExpression = JSXEmptyExpression; - var JSXExpressionContainer = (function () { - function JSXExpressionContainer(expression) { - this.type = jsx_syntax_1.JSXSyntax.JSXExpressionContainer; - this.expression = expression; - } - return JSXExpressionContainer; - }()); - exports.JSXExpressionContainer = JSXExpressionContainer; - var JSXIdentifier = (function () { - function JSXIdentifier(name) { - this.type = jsx_syntax_1.JSXSyntax.JSXIdentifier; - this.name = name; - } - return JSXIdentifier; - }()); - exports.JSXIdentifier = JSXIdentifier; - var JSXMemberExpression = (function () { - function JSXMemberExpression(object, property) { - this.type = jsx_syntax_1.JSXSyntax.JSXMemberExpression; - this.object = object; - this.property = property; - } - return JSXMemberExpression; - }()); - exports.JSXMemberExpression = JSXMemberExpression; - var JSXAttribute = (function () { - function JSXAttribute(name, value) { - this.type = jsx_syntax_1.JSXSyntax.JSXAttribute; - this.name = name; - this.value = value; - } - return JSXAttribute; - }()); - exports.JSXAttribute = JSXAttribute; - var JSXNamespacedName = (function () { - function JSXNamespacedName(namespace, name) { - this.type = jsx_syntax_1.JSXSyntax.JSXNamespacedName; - this.namespace = namespace; - this.name = name; - } - return JSXNamespacedName; - }()); - exports.JSXNamespacedName = JSXNamespacedName; - var JSXOpeningElement = (function () { - function JSXOpeningElement(name, selfClosing, attributes) { - this.type = jsx_syntax_1.JSXSyntax.JSXOpeningElement; - this.name = name; - this.selfClosing = selfClosing; - this.attributes = attributes; - } - return JSXOpeningElement; - }()); - exports.JSXOpeningElement = JSXOpeningElement; - var JSXSpreadAttribute = (function () { - function JSXSpreadAttribute(argument) { - this.type = jsx_syntax_1.JSXSyntax.JSXSpreadAttribute; - this.argument = argument; - } - return JSXSpreadAttribute; - }()); - exports.JSXSpreadAttribute = JSXSpreadAttribute; - var JSXText = (function () { - function JSXText(value, raw) { - this.type = jsx_syntax_1.JSXSyntax.JSXText; - this.value = value; - this.raw = raw; - } - return JSXText; - }()); - exports.JSXText = JSXText; + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + var jsx_syntax_1 = __webpack_require__(6); + /* tslint:disable:max-classes-per-file */ + var JSXClosingElement = (function () { + function JSXClosingElement(name) { + this.type = jsx_syntax_1.JSXSyntax.JSXClosingElement; + this.name = name; + } + return JSXClosingElement; + }()); + exports.JSXClosingElement = JSXClosingElement; + var JSXElement = (function () { + function JSXElement(openingElement, children, closingElement) { + this.type = jsx_syntax_1.JSXSyntax.JSXElement; + this.openingElement = openingElement; + this.children = children; + this.closingElement = closingElement; + } + return JSXElement; + }()); + exports.JSXElement = JSXElement; + var JSXEmptyExpression = (function () { + function JSXEmptyExpression() { + this.type = jsx_syntax_1.JSXSyntax.JSXEmptyExpression; + } + return JSXEmptyExpression; + }()); + exports.JSXEmptyExpression = JSXEmptyExpression; + var JSXExpressionContainer = (function () { + function JSXExpressionContainer(expression) { + this.type = jsx_syntax_1.JSXSyntax.JSXExpressionContainer; + this.expression = expression; + } + return JSXExpressionContainer; + }()); + exports.JSXExpressionContainer = JSXExpressionContainer; + var JSXIdentifier = (function () { + function JSXIdentifier(name) { + this.type = jsx_syntax_1.JSXSyntax.JSXIdentifier; + this.name = name; + } + return JSXIdentifier; + }()); + exports.JSXIdentifier = JSXIdentifier; + var JSXMemberExpression = (function () { + function JSXMemberExpression(object, property) { + this.type = jsx_syntax_1.JSXSyntax.JSXMemberExpression; + this.object = object; + this.property = property; + } + return JSXMemberExpression; + }()); + exports.JSXMemberExpression = JSXMemberExpression; + var JSXAttribute = (function () { + function JSXAttribute(name, value) { + this.type = jsx_syntax_1.JSXSyntax.JSXAttribute; + this.name = name; + this.value = value; + } + return JSXAttribute; + }()); + exports.JSXAttribute = JSXAttribute; + var JSXNamespacedName = (function () { + function JSXNamespacedName(namespace, name) { + this.type = jsx_syntax_1.JSXSyntax.JSXNamespacedName; + this.namespace = namespace; + this.name = name; + } + return JSXNamespacedName; + }()); + exports.JSXNamespacedName = JSXNamespacedName; + var JSXOpeningElement = (function () { + function JSXOpeningElement(name, selfClosing, attributes) { + this.type = jsx_syntax_1.JSXSyntax.JSXOpeningElement; + this.name = name; + this.selfClosing = selfClosing; + this.attributes = attributes; + } + return JSXOpeningElement; + }()); + exports.JSXOpeningElement = JSXOpeningElement; + var JSXSpreadAttribute = (function () { + function JSXSpreadAttribute(argument) { + this.type = jsx_syntax_1.JSXSyntax.JSXSpreadAttribute; + this.argument = argument; + } + return JSXSpreadAttribute; + }()); + exports.JSXSpreadAttribute = JSXSpreadAttribute; + var JSXText = (function () { + function JSXText(value, raw) { + this.type = jsx_syntax_1.JSXSyntax.JSXText; + this.value = value; + this.raw = raw; + } + return JSXText; + }()); + exports.JSXText = JSXText; /***/ }, /* 6 */ /***/ function(module, exports) { - "use strict"; - Object.defineProperty(exports, "__esModule", { value: true }); - exports.JSXSyntax = { - JSXAttribute: 'JSXAttribute', - JSXClosingElement: 'JSXClosingElement', - JSXElement: 'JSXElement', - JSXEmptyExpression: 'JSXEmptyExpression', - JSXExpressionContainer: 'JSXExpressionContainer', - JSXIdentifier: 'JSXIdentifier', - JSXMemberExpression: 'JSXMemberExpression', - JSXNamespacedName: 'JSXNamespacedName', - JSXOpeningElement: 'JSXOpeningElement', - JSXSpreadAttribute: 'JSXSpreadAttribute', - JSXText: 'JSXText' - }; + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + exports.JSXSyntax = { + JSXAttribute: 'JSXAttribute', + JSXClosingElement: 'JSXClosingElement', + JSXElement: 'JSXElement', + JSXEmptyExpression: 'JSXEmptyExpression', + JSXExpressionContainer: 'JSXExpressionContainer', + JSXIdentifier: 'JSXIdentifier', + JSXMemberExpression: 'JSXMemberExpression', + JSXNamespacedName: 'JSXNamespacedName', + JSXOpeningElement: 'JSXOpeningElement', + JSXSpreadAttribute: 'JSXSpreadAttribute', + JSXText: 'JSXText' + }; /***/ }, /* 7 */ /***/ function(module, exports, __webpack_require__) { - "use strict"; - Object.defineProperty(exports, "__esModule", { value: true }); - var syntax_1 = __webpack_require__(2); - /* tslint:disable:max-classes-per-file */ - var ArrayExpression = (function () { - function ArrayExpression(elements) { - this.type = syntax_1.Syntax.ArrayExpression; - this.elements = elements; - } - return ArrayExpression; - }()); - exports.ArrayExpression = ArrayExpression; - var ArrayPattern = (function () { - function ArrayPattern(elements) { - this.type = syntax_1.Syntax.ArrayPattern; - this.elements = elements; - } - return ArrayPattern; - }()); - exports.ArrayPattern = ArrayPattern; - var ArrowFunctionExpression = (function () { - function ArrowFunctionExpression(params, body, expression) { - this.type = syntax_1.Syntax.ArrowFunctionExpression; - this.id = null; - this.params = params; - this.body = body; - this.generator = false; - this.expression = expression; - this.async = false; - } - return ArrowFunctionExpression; - }()); - exports.ArrowFunctionExpression = ArrowFunctionExpression; - var AssignmentExpression = (function () { - function AssignmentExpression(operator, left, right) { - this.type = syntax_1.Syntax.AssignmentExpression; - this.operator = operator; - this.left = left; - this.right = right; - } - return AssignmentExpression; - }()); - exports.AssignmentExpression = AssignmentExpression; - var AssignmentPattern = (function () { - function AssignmentPattern(left, right) { - this.type = syntax_1.Syntax.AssignmentPattern; - this.left = left; - this.right = right; - } - return AssignmentPattern; - }()); - exports.AssignmentPattern = AssignmentPattern; - var AsyncArrowFunctionExpression = (function () { - function AsyncArrowFunctionExpression(params, body, expression) { - this.type = syntax_1.Syntax.ArrowFunctionExpression; - this.id = null; - this.params = params; - this.body = body; - this.generator = false; - this.expression = expression; - this.async = true; - } - return AsyncArrowFunctionExpression; - }()); - exports.AsyncArrowFunctionExpression = AsyncArrowFunctionExpression; - var AsyncFunctionDeclaration = (function () { - function AsyncFunctionDeclaration(id, params, body) { - this.type = syntax_1.Syntax.FunctionDeclaration; - this.id = id; - this.params = params; - this.body = body; - this.generator = false; - this.expression = false; - this.async = true; - } - return AsyncFunctionDeclaration; - }()); - exports.AsyncFunctionDeclaration = AsyncFunctionDeclaration; - var AsyncFunctionExpression = (function () { - function AsyncFunctionExpression(id, params, body) { - this.type = syntax_1.Syntax.FunctionExpression; - this.id = id; - this.params = params; - this.body = body; - this.generator = false; - this.expression = false; - this.async = true; - } - return AsyncFunctionExpression; - }()); - exports.AsyncFunctionExpression = AsyncFunctionExpression; - var AwaitExpression = (function () { - function AwaitExpression(argument) { - this.type = syntax_1.Syntax.AwaitExpression; - this.argument = argument; - } - return AwaitExpression; - }()); - exports.AwaitExpression = AwaitExpression; - var BinaryExpression = (function () { - function BinaryExpression(operator, left, right) { - var logical = (operator === '||' || operator === '&&'); - this.type = logical ? syntax_1.Syntax.LogicalExpression : syntax_1.Syntax.BinaryExpression; - this.operator = operator; - this.left = left; - this.right = right; - } - return BinaryExpression; - }()); - exports.BinaryExpression = BinaryExpression; - var BlockStatement = (function () { - function BlockStatement(body) { - this.type = syntax_1.Syntax.BlockStatement; - this.body = body; - } - return BlockStatement; - }()); - exports.BlockStatement = BlockStatement; - var BreakStatement = (function () { - function BreakStatement(label) { - this.type = syntax_1.Syntax.BreakStatement; - this.label = label; - } - return BreakStatement; - }()); - exports.BreakStatement = BreakStatement; - var CallExpression = (function () { - function CallExpression(callee, args) { - this.type = syntax_1.Syntax.CallExpression; - this.callee = callee; - this.arguments = args; - } - return CallExpression; - }()); - exports.CallExpression = CallExpression; - var CatchClause = (function () { - function CatchClause(param, body) { - this.type = syntax_1.Syntax.CatchClause; - this.param = param; - this.body = body; - } - return CatchClause; - }()); - exports.CatchClause = CatchClause; - var ClassBody = (function () { - function ClassBody(body) { - this.type = syntax_1.Syntax.ClassBody; - this.body = body; - } - return ClassBody; - }()); - exports.ClassBody = ClassBody; - var ClassDeclaration = (function () { - function ClassDeclaration(id, superClass, body) { - this.type = syntax_1.Syntax.ClassDeclaration; - this.id = id; - this.superClass = superClass; - this.body = body; - } - return ClassDeclaration; - }()); - exports.ClassDeclaration = ClassDeclaration; - var ClassExpression = (function () { - function ClassExpression(id, superClass, body) { - this.type = syntax_1.Syntax.ClassExpression; - this.id = id; - this.superClass = superClass; - this.body = body; - } - return ClassExpression; - }()); - exports.ClassExpression = ClassExpression; - var ComputedMemberExpression = (function () { - function ComputedMemberExpression(object, property) { - this.type = syntax_1.Syntax.MemberExpression; - this.computed = true; - this.object = object; - this.property = property; - } - return ComputedMemberExpression; - }()); - exports.ComputedMemberExpression = ComputedMemberExpression; - var ConditionalExpression = (function () { - function ConditionalExpression(test, consequent, alternate) { - this.type = syntax_1.Syntax.ConditionalExpression; - this.test = test; - this.consequent = consequent; - this.alternate = alternate; - } - return ConditionalExpression; - }()); - exports.ConditionalExpression = ConditionalExpression; - var ContinueStatement = (function () { - function ContinueStatement(label) { - this.type = syntax_1.Syntax.ContinueStatement; - this.label = label; - } - return ContinueStatement; - }()); - exports.ContinueStatement = ContinueStatement; - var DebuggerStatement = (function () { - function DebuggerStatement() { - this.type = syntax_1.Syntax.DebuggerStatement; - } - return DebuggerStatement; - }()); - exports.DebuggerStatement = DebuggerStatement; - var Directive = (function () { - function Directive(expression, directive) { - this.type = syntax_1.Syntax.ExpressionStatement; - this.expression = expression; - this.directive = directive; - } - return Directive; - }()); - exports.Directive = Directive; - var DoWhileStatement = (function () { - function DoWhileStatement(body, test) { - this.type = syntax_1.Syntax.DoWhileStatement; - this.body = body; - this.test = test; - } - return DoWhileStatement; - }()); - exports.DoWhileStatement = DoWhileStatement; - var EmptyStatement = (function () { - function EmptyStatement() { - this.type = syntax_1.Syntax.EmptyStatement; - } - return EmptyStatement; - }()); - exports.EmptyStatement = EmptyStatement; - var ExportAllDeclaration = (function () { - function ExportAllDeclaration(source) { - this.type = syntax_1.Syntax.ExportAllDeclaration; - this.source = source; - } - return ExportAllDeclaration; - }()); - exports.ExportAllDeclaration = ExportAllDeclaration; - var ExportDefaultDeclaration = (function () { - function ExportDefaultDeclaration(declaration) { - this.type = syntax_1.Syntax.ExportDefaultDeclaration; - this.declaration = declaration; - } - return ExportDefaultDeclaration; - }()); - exports.ExportDefaultDeclaration = ExportDefaultDeclaration; - var ExportNamedDeclaration = (function () { - function ExportNamedDeclaration(declaration, specifiers, source) { - this.type = syntax_1.Syntax.ExportNamedDeclaration; - this.declaration = declaration; - this.specifiers = specifiers; - this.source = source; - } - return ExportNamedDeclaration; - }()); - exports.ExportNamedDeclaration = ExportNamedDeclaration; - var ExportSpecifier = (function () { - function ExportSpecifier(local, exported) { - this.type = syntax_1.Syntax.ExportSpecifier; - this.exported = exported; - this.local = local; - } - return ExportSpecifier; - }()); - exports.ExportSpecifier = ExportSpecifier; - var ExpressionStatement = (function () { - function ExpressionStatement(expression) { - this.type = syntax_1.Syntax.ExpressionStatement; - this.expression = expression; - } - return ExpressionStatement; - }()); - exports.ExpressionStatement = ExpressionStatement; - var ForInStatement = (function () { - function ForInStatement(left, right, body) { - this.type = syntax_1.Syntax.ForInStatement; - this.left = left; - this.right = right; - this.body = body; - this.each = false; - } - return ForInStatement; - }()); - exports.ForInStatement = ForInStatement; - var ForOfStatement = (function () { - function ForOfStatement(left, right, body) { - this.type = syntax_1.Syntax.ForOfStatement; - this.left = left; - this.right = right; - this.body = body; - } - return ForOfStatement; - }()); - exports.ForOfStatement = ForOfStatement; - var ForStatement = (function () { - function ForStatement(init, test, update, body) { - this.type = syntax_1.Syntax.ForStatement; - this.init = init; - this.test = test; - this.update = update; - this.body = body; - } - return ForStatement; - }()); - exports.ForStatement = ForStatement; - var FunctionDeclaration = (function () { - function FunctionDeclaration(id, params, body, generator) { - this.type = syntax_1.Syntax.FunctionDeclaration; - this.id = id; - this.params = params; - this.body = body; - this.generator = generator; - this.expression = false; - this.async = false; - } - return FunctionDeclaration; - }()); - exports.FunctionDeclaration = FunctionDeclaration; - var FunctionExpression = (function () { - function FunctionExpression(id, params, body, generator) { - this.type = syntax_1.Syntax.FunctionExpression; - this.id = id; - this.params = params; - this.body = body; - this.generator = generator; - this.expression = false; - this.async = false; - } - return FunctionExpression; - }()); - exports.FunctionExpression = FunctionExpression; - var Identifier = (function () { - function Identifier(name) { - this.type = syntax_1.Syntax.Identifier; - this.name = name; - } - return Identifier; - }()); - exports.Identifier = Identifier; - var IfStatement = (function () { - function IfStatement(test, consequent, alternate) { - this.type = syntax_1.Syntax.IfStatement; - this.test = test; - this.consequent = consequent; - this.alternate = alternate; - } - return IfStatement; - }()); - exports.IfStatement = IfStatement; - var ImportDeclaration = (function () { - function ImportDeclaration(specifiers, source) { - this.type = syntax_1.Syntax.ImportDeclaration; - this.specifiers = specifiers; - this.source = source; - } - return ImportDeclaration; - }()); - exports.ImportDeclaration = ImportDeclaration; - var ImportDefaultSpecifier = (function () { - function ImportDefaultSpecifier(local) { - this.type = syntax_1.Syntax.ImportDefaultSpecifier; - this.local = local; - } - return ImportDefaultSpecifier; - }()); - exports.ImportDefaultSpecifier = ImportDefaultSpecifier; - var ImportNamespaceSpecifier = (function () { - function ImportNamespaceSpecifier(local) { - this.type = syntax_1.Syntax.ImportNamespaceSpecifier; - this.local = local; - } - return ImportNamespaceSpecifier; - }()); - exports.ImportNamespaceSpecifier = ImportNamespaceSpecifier; - var ImportSpecifier = (function () { - function ImportSpecifier(local, imported) { - this.type = syntax_1.Syntax.ImportSpecifier; - this.local = local; - this.imported = imported; - } - return ImportSpecifier; - }()); - exports.ImportSpecifier = ImportSpecifier; - var LabeledStatement = (function () { - function LabeledStatement(label, body) { - this.type = syntax_1.Syntax.LabeledStatement; - this.label = label; - this.body = body; - } - return LabeledStatement; - }()); - exports.LabeledStatement = LabeledStatement; - var Literal = (function () { - function Literal(value, raw) { - this.type = syntax_1.Syntax.Literal; - this.value = value; - this.raw = raw; - } - return Literal; - }()); - exports.Literal = Literal; - var MetaProperty = (function () { - function MetaProperty(meta, property) { - this.type = syntax_1.Syntax.MetaProperty; - this.meta = meta; - this.property = property; - } - return MetaProperty; - }()); - exports.MetaProperty = MetaProperty; - var MethodDefinition = (function () { - function MethodDefinition(key, computed, value, kind, isStatic) { - this.type = syntax_1.Syntax.MethodDefinition; - this.key = key; - this.computed = computed; - this.value = value; - this.kind = kind; - this.static = isStatic; - } - return MethodDefinition; - }()); - exports.MethodDefinition = MethodDefinition; - var Module = (function () { - function Module(body) { - this.type = syntax_1.Syntax.Program; - this.body = body; - this.sourceType = 'module'; - } - return Module; - }()); - exports.Module = Module; - var NewExpression = (function () { - function NewExpression(callee, args) { - this.type = syntax_1.Syntax.NewExpression; - this.callee = callee; - this.arguments = args; - } - return NewExpression; - }()); - exports.NewExpression = NewExpression; - var ObjectExpression = (function () { - function ObjectExpression(properties) { - this.type = syntax_1.Syntax.ObjectExpression; - this.properties = properties; - } - return ObjectExpression; - }()); - exports.ObjectExpression = ObjectExpression; - var ObjectPattern = (function () { - function ObjectPattern(properties) { - this.type = syntax_1.Syntax.ObjectPattern; - this.properties = properties; - } - return ObjectPattern; - }()); - exports.ObjectPattern = ObjectPattern; - var Property = (function () { - function Property(kind, key, computed, value, method, shorthand) { - this.type = syntax_1.Syntax.Property; - this.key = key; - this.computed = computed; - this.value = value; - this.kind = kind; - this.method = method; - this.shorthand = shorthand; - } - return Property; - }()); - exports.Property = Property; - var RegexLiteral = (function () { - function RegexLiteral(value, raw, pattern, flags) { - this.type = syntax_1.Syntax.Literal; - this.value = value; - this.raw = raw; - this.regex = { pattern: pattern, flags: flags }; - } - return RegexLiteral; - }()); - exports.RegexLiteral = RegexLiteral; - var RestElement = (function () { - function RestElement(argument) { - this.type = syntax_1.Syntax.RestElement; - this.argument = argument; - } - return RestElement; - }()); - exports.RestElement = RestElement; - var ReturnStatement = (function () { - function ReturnStatement(argument) { - this.type = syntax_1.Syntax.ReturnStatement; - this.argument = argument; - } - return ReturnStatement; - }()); - exports.ReturnStatement = ReturnStatement; - var Script = (function () { - function Script(body) { - this.type = syntax_1.Syntax.Program; - this.body = body; - this.sourceType = 'script'; - } - return Script; - }()); - exports.Script = Script; - var SequenceExpression = (function () { - function SequenceExpression(expressions) { - this.type = syntax_1.Syntax.SequenceExpression; - this.expressions = expressions; - } - return SequenceExpression; - }()); - exports.SequenceExpression = SequenceExpression; - var SpreadElement = (function () { - function SpreadElement(argument) { - this.type = syntax_1.Syntax.SpreadElement; - this.argument = argument; - } - return SpreadElement; - }()); - exports.SpreadElement = SpreadElement; - var StaticMemberExpression = (function () { - function StaticMemberExpression(object, property) { - this.type = syntax_1.Syntax.MemberExpression; - this.computed = false; - this.object = object; - this.property = property; - } - return StaticMemberExpression; - }()); - exports.StaticMemberExpression = StaticMemberExpression; - var Super = (function () { - function Super() { - this.type = syntax_1.Syntax.Super; - } - return Super; - }()); - exports.Super = Super; - var SwitchCase = (function () { - function SwitchCase(test, consequent) { - this.type = syntax_1.Syntax.SwitchCase; - this.test = test; - this.consequent = consequent; - } - return SwitchCase; - }()); - exports.SwitchCase = SwitchCase; - var SwitchStatement = (function () { - function SwitchStatement(discriminant, cases) { - this.type = syntax_1.Syntax.SwitchStatement; - this.discriminant = discriminant; - this.cases = cases; - } - return SwitchStatement; - }()); - exports.SwitchStatement = SwitchStatement; - var TaggedTemplateExpression = (function () { - function TaggedTemplateExpression(tag, quasi) { - this.type = syntax_1.Syntax.TaggedTemplateExpression; - this.tag = tag; - this.quasi = quasi; - } - return TaggedTemplateExpression; - }()); - exports.TaggedTemplateExpression = TaggedTemplateExpression; - var TemplateElement = (function () { - function TemplateElement(value, tail) { - this.type = syntax_1.Syntax.TemplateElement; - this.value = value; - this.tail = tail; - } - return TemplateElement; - }()); - exports.TemplateElement = TemplateElement; - var TemplateLiteral = (function () { - function TemplateLiteral(quasis, expressions) { - this.type = syntax_1.Syntax.TemplateLiteral; - this.quasis = quasis; - this.expressions = expressions; - } - return TemplateLiteral; - }()); - exports.TemplateLiteral = TemplateLiteral; - var ThisExpression = (function () { - function ThisExpression() { - this.type = syntax_1.Syntax.ThisExpression; - } - return ThisExpression; - }()); - exports.ThisExpression = ThisExpression; - var ThrowStatement = (function () { - function ThrowStatement(argument) { - this.type = syntax_1.Syntax.ThrowStatement; - this.argument = argument; - } - return ThrowStatement; - }()); - exports.ThrowStatement = ThrowStatement; - var TryStatement = (function () { - function TryStatement(block, handler, finalizer) { - this.type = syntax_1.Syntax.TryStatement; - this.block = block; - this.handler = handler; - this.finalizer = finalizer; - } - return TryStatement; - }()); - exports.TryStatement = TryStatement; - var UnaryExpression = (function () { - function UnaryExpression(operator, argument) { - this.type = syntax_1.Syntax.UnaryExpression; - this.operator = operator; - this.argument = argument; - this.prefix = true; - } - return UnaryExpression; - }()); - exports.UnaryExpression = UnaryExpression; - var UpdateExpression = (function () { - function UpdateExpression(operator, argument, prefix) { - this.type = syntax_1.Syntax.UpdateExpression; - this.operator = operator; - this.argument = argument; - this.prefix = prefix; - } - return UpdateExpression; - }()); - exports.UpdateExpression = UpdateExpression; - var VariableDeclaration = (function () { - function VariableDeclaration(declarations, kind) { - this.type = syntax_1.Syntax.VariableDeclaration; - this.declarations = declarations; - this.kind = kind; - } - return VariableDeclaration; - }()); - exports.VariableDeclaration = VariableDeclaration; - var VariableDeclarator = (function () { - function VariableDeclarator(id, init) { - this.type = syntax_1.Syntax.VariableDeclarator; - this.id = id; - this.init = init; - } - return VariableDeclarator; - }()); - exports.VariableDeclarator = VariableDeclarator; - var WhileStatement = (function () { - function WhileStatement(test, body) { - this.type = syntax_1.Syntax.WhileStatement; - this.test = test; - this.body = body; - } - return WhileStatement; - }()); - exports.WhileStatement = WhileStatement; - var WithStatement = (function () { - function WithStatement(object, body) { - this.type = syntax_1.Syntax.WithStatement; - this.object = object; - this.body = body; - } - return WithStatement; - }()); - exports.WithStatement = WithStatement; - var YieldExpression = (function () { - function YieldExpression(argument, delegate) { - this.type = syntax_1.Syntax.YieldExpression; - this.argument = argument; - this.delegate = delegate; - } - return YieldExpression; - }()); - exports.YieldExpression = YieldExpression; - - -/***/ }, -/* 8 */ -/***/ function(module, exports, __webpack_require__) { - - "use strict"; - Object.defineProperty(exports, "__esModule", { value: true }); - var assert_1 = __webpack_require__(9); - var error_handler_1 = __webpack_require__(10); - var messages_1 = __webpack_require__(11); - var Node = __webpack_require__(7); - var scanner_1 = __webpack_require__(12); - var syntax_1 = __webpack_require__(2); - var token_1 = __webpack_require__(13); - var ArrowParameterPlaceHolder = 'ArrowParameterPlaceHolder'; - var Parser = (function () { - function Parser(code, options, delegate) { - if (options === void 0) { options = {}; } - this.config = { - range: (typeof options.range === 'boolean') && options.range, - loc: (typeof options.loc === 'boolean') && options.loc, - source: null, - tokens: (typeof options.tokens === 'boolean') && options.tokens, - comment: (typeof options.comment === 'boolean') && options.comment, - tolerant: (typeof options.tolerant === 'boolean') && options.tolerant - }; - if (this.config.loc && options.source && options.source !== null) { - this.config.source = String(options.source); - } - this.delegate = delegate; - this.errorHandler = new error_handler_1.ErrorHandler(); - this.errorHandler.tolerant = this.config.tolerant; - this.scanner = new scanner_1.Scanner(code, this.errorHandler); - this.scanner.trackComment = this.config.comment; - this.operatorPrecedence = { - ')': 0, - ';': 0, - ',': 0, - '=': 0, - ']': 0, - '||': 1, - '&&': 2, - '|': 3, - '^': 4, - '&': 5, - '==': 6, - '!=': 6, - '===': 6, - '!==': 6, - '<': 7, - '>': 7, - '<=': 7, - '>=': 7, - '<<': 8, - '>>': 8, - '>>>': 8, - '+': 9, - '-': 9, - '*': 11, - '/': 11, - '%': 11 - }; - this.lookahead = { - type: 2 /* EOF */, - value: '', - lineNumber: this.scanner.lineNumber, - lineStart: 0, - start: 0, - end: 0 - }; - this.hasLineTerminator = false; - this.context = { - isModule: false, - await: false, - allowIn: true, - allowStrictDirective: true, - allowYield: true, - firstCoverInitializedNameError: null, - isAssignmentTarget: false, - isBindingElement: false, - inFunctionBody: false, - inIteration: false, - inSwitch: false, - labelSet: {}, - strict: false - }; - this.tokens = []; - this.startMarker = { - index: 0, - line: this.scanner.lineNumber, - column: 0 - }; - this.lastMarker = { - index: 0, - line: this.scanner.lineNumber, - column: 0 - }; - this.nextToken(); - this.lastMarker = { - index: this.scanner.index, - line: this.scanner.lineNumber, - column: this.scanner.index - this.scanner.lineStart - }; - } - Parser.prototype.throwError = function (messageFormat) { - var values = []; - for (var _i = 1; _i < arguments.length; _i++) { - values[_i - 1] = arguments[_i]; - } - var args = Array.prototype.slice.call(arguments, 1); - var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) { - assert_1.assert(idx < args.length, 'Message reference must be in range'); - return args[idx]; - }); - var index = this.lastMarker.index; - var line = this.lastMarker.line; - var column = this.lastMarker.column + 1; - throw this.errorHandler.createError(index, line, column, msg); - }; - Parser.prototype.tolerateError = function (messageFormat) { - var values = []; - for (var _i = 1; _i < arguments.length; _i++) { - values[_i - 1] = arguments[_i]; - } - var args = Array.prototype.slice.call(arguments, 1); - var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) { - assert_1.assert(idx < args.length, 'Message reference must be in range'); - return args[idx]; - }); - var index = this.lastMarker.index; - var line = this.scanner.lineNumber; - var column = this.lastMarker.column + 1; - this.errorHandler.tolerateError(index, line, column, msg); - }; - // Throw an exception because of the token. - Parser.prototype.unexpectedTokenError = function (token, message) { - var msg = message || messages_1.Messages.UnexpectedToken; - var value; - if (token) { - if (!message) { - msg = (token.type === 2 /* EOF */) ? messages_1.Messages.UnexpectedEOS : - (token.type === 3 /* Identifier */) ? messages_1.Messages.UnexpectedIdentifier : - (token.type === 6 /* NumericLiteral */) ? messages_1.Messages.UnexpectedNumber : - (token.type === 8 /* StringLiteral */) ? messages_1.Messages.UnexpectedString : - (token.type === 10 /* Template */) ? messages_1.Messages.UnexpectedTemplate : - messages_1.Messages.UnexpectedToken; - if (token.type === 4 /* Keyword */) { - if (this.scanner.isFutureReservedWord(token.value)) { - msg = messages_1.Messages.UnexpectedReserved; - } - else if (this.context.strict && this.scanner.isStrictModeReservedWord(token.value)) { - msg = messages_1.Messages.StrictReservedWord; - } - } - } - value = token.value; - } - else { - value = 'ILLEGAL'; - } - msg = msg.replace('%0', value); - if (token && typeof token.lineNumber === 'number') { - var index = token.start; - var line = token.lineNumber; - var lastMarkerLineStart = this.lastMarker.index - this.lastMarker.column; - var column = token.start - lastMarkerLineStart + 1; - return this.errorHandler.createError(index, line, column, msg); - } - else { - var index = this.lastMarker.index; - var line = this.lastMarker.line; - var column = this.lastMarker.column + 1; - return this.errorHandler.createError(index, line, column, msg); - } - }; - Parser.prototype.throwUnexpectedToken = function (token, message) { - throw this.unexpectedTokenError(token, message); - }; - Parser.prototype.tolerateUnexpectedToken = function (token, message) { - this.errorHandler.tolerate(this.unexpectedTokenError(token, message)); - }; - Parser.prototype.collectComments = function () { - if (!this.config.comment) { - this.scanner.scanComments(); - } - else { - var comments = this.scanner.scanComments(); - if (comments.length > 0 && this.delegate) { - for (var i = 0; i < comments.length; ++i) { - var e = comments[i]; - var node = void 0; - node = { - type: e.multiLine ? 'BlockComment' : 'LineComment', - value: this.scanner.source.slice(e.slice[0], e.slice[1]) - }; - if (this.config.range) { - node.range = e.range; - } - if (this.config.loc) { - node.loc = e.loc; - } - var metadata = { - start: { - line: e.loc.start.line, - column: e.loc.start.column, - offset: e.range[0] - }, - end: { - line: e.loc.end.line, - column: e.loc.end.column, - offset: e.range[1] - } - }; - this.delegate(node, metadata); - } - } - } - }; - // From internal representation to an external structure - Parser.prototype.getTokenRaw = function (token) { - return this.scanner.source.slice(token.start, token.end); - }; - Parser.prototype.convertToken = function (token) { - var t = { - type: token_1.TokenName[token.type], - value: this.getTokenRaw(token) - }; - if (this.config.range) { - t.range = [token.start, token.end]; - } - if (this.config.loc) { - t.loc = { - start: { - line: this.startMarker.line, - column: this.startMarker.column - }, - end: { - line: this.scanner.lineNumber, - column: this.scanner.index - this.scanner.lineStart - } - }; - } - if (token.type === 9 /* RegularExpression */) { - var pattern = token.pattern; - var flags = token.flags; - t.regex = { pattern: pattern, flags: flags }; - } - return t; - }; - Parser.prototype.nextToken = function () { - var token = this.lookahead; - this.lastMarker.index = this.scanner.index; - this.lastMarker.line = this.scanner.lineNumber; - this.lastMarker.column = this.scanner.index - this.scanner.lineStart; - this.collectComments(); - if (this.scanner.index !== this.startMarker.index) { - this.startMarker.index = this.scanner.index; - this.startMarker.line = this.scanner.lineNumber; - this.startMarker.column = this.scanner.index - this.scanner.lineStart; - } - var next = this.scanner.lex(); - this.hasLineTerminator = (token.lineNumber !== next.lineNumber); - if (next && this.context.strict && next.type === 3 /* Identifier */) { - if (this.scanner.isStrictModeReservedWord(next.value)) { - next.type = 4 /* Keyword */; - } - } - this.lookahead = next; - if (this.config.tokens && next.type !== 2 /* EOF */) { - this.tokens.push(this.convertToken(next)); - } - return token; - }; - Parser.prototype.nextRegexToken = function () { - this.collectComments(); - var token = this.scanner.scanRegExp(); - if (this.config.tokens) { - // Pop the previous token, '/' or '/=' - // This is added from the lookahead token. - this.tokens.pop(); - this.tokens.push(this.convertToken(token)); - } - // Prime the next lookahead. - this.lookahead = token; - this.nextToken(); - return token; - }; - Parser.prototype.createNode = function () { - return { - index: this.startMarker.index, - line: this.startMarker.line, - column: this.startMarker.column - }; - }; - Parser.prototype.startNode = function (token) { - return { - index: token.start, - line: token.lineNumber, - column: token.start - token.lineStart - }; - }; - Parser.prototype.finalize = function (marker, node) { - if (this.config.range) { - node.range = [marker.index, this.lastMarker.index]; - } - if (this.config.loc) { - node.loc = { - start: { - line: marker.line, - column: marker.column, - }, - end: { - line: this.lastMarker.line, - column: this.lastMarker.column - } - }; - if (this.config.source) { - node.loc.source = this.config.source; - } - } - if (this.delegate) { - var metadata = { - start: { - line: marker.line, - column: marker.column, - offset: marker.index - }, - end: { - line: this.lastMarker.line, - column: this.lastMarker.column, - offset: this.lastMarker.index - } - }; - this.delegate(node, metadata); - } - return node; - }; - // Expect the next token to match the specified punctuator. - // If not, an exception will be thrown. - Parser.prototype.expect = function (value) { - var token = this.nextToken(); - if (token.type !== 7 /* Punctuator */ || token.value !== value) { - this.throwUnexpectedToken(token); - } - }; - // Quietly expect a comma when in tolerant mode, otherwise delegates to expect(). - Parser.prototype.expectCommaSeparator = function () { - if (this.config.tolerant) { - var token = this.lookahead; - if (token.type === 7 /* Punctuator */ && token.value === ',') { - this.nextToken(); - } - else if (token.type === 7 /* Punctuator */ && token.value === ';') { - this.nextToken(); - this.tolerateUnexpectedToken(token); - } - else { - this.tolerateUnexpectedToken(token, messages_1.Messages.UnexpectedToken); - } - } - else { - this.expect(','); - } - }; - // Expect the next token to match the specified keyword. - // If not, an exception will be thrown. - Parser.prototype.expectKeyword = function (keyword) { - var token = this.nextToken(); - if (token.type !== 4 /* Keyword */ || token.value !== keyword) { - this.throwUnexpectedToken(token); - } - }; - // Return true if the next token matches the specified punctuator. - Parser.prototype.match = function (value) { - return this.lookahead.type === 7 /* Punctuator */ && this.lookahead.value === value; - }; - // Return true if the next token matches the specified keyword - Parser.prototype.matchKeyword = function (keyword) { - return this.lookahead.type === 4 /* Keyword */ && this.lookahead.value === keyword; - }; - // Return true if the next token matches the specified contextual keyword - // (where an identifier is sometimes a keyword depending on the context) - Parser.prototype.matchContextualKeyword = function (keyword) { - return this.lookahead.type === 3 /* Identifier */ && this.lookahead.value === keyword; - }; - // Return true if the next token is an assignment operator - Parser.prototype.matchAssign = function () { - if (this.lookahead.type !== 7 /* Punctuator */) { - return false; - } - var op = this.lookahead.value; - return op === '=' || - op === '*=' || - op === '**=' || - op === '/=' || - op === '%=' || - op === '+=' || - op === '-=' || - op === '<<=' || - op === '>>=' || - op === '>>>=' || - op === '&=' || - op === '^=' || - op === '|='; - }; - // Cover grammar support. - // - // When an assignment expression position starts with an left parenthesis, the determination of the type - // of the syntax is to be deferred arbitrarily long until the end of the parentheses pair (plus a lookahead) - // or the first comma. This situation also defers the determination of all the expressions nested in the pair. - // - // There are three productions that can be parsed in a parentheses pair that needs to be determined - // after the outermost pair is closed. They are: - // - // 1. AssignmentExpression - // 2. BindingElements - // 3. AssignmentTargets - // - // In order to avoid exponential backtracking, we use two flags to denote if the production can be - // binding element or assignment target. - // - // The three productions have the relationship: - // - // BindingElements ⊆ AssignmentTargets ⊆ AssignmentExpression - // - // with a single exception that CoverInitializedName when used directly in an Expression, generates - // an early error. Therefore, we need the third state, firstCoverInitializedNameError, to track the - // first usage of CoverInitializedName and report it when we reached the end of the parentheses pair. - // - // isolateCoverGrammar function runs the given parser function with a new cover grammar context, and it does not - // effect the current flags. This means the production the parser parses is only used as an expression. Therefore - // the CoverInitializedName check is conducted. - // - // inheritCoverGrammar function runs the given parse function with a new cover grammar context, and it propagates - // the flags outside of the parser. This means the production the parser parses is used as a part of a potential - // pattern. The CoverInitializedName check is deferred. - Parser.prototype.isolateCoverGrammar = function (parseFunction) { - var previousIsBindingElement = this.context.isBindingElement; - var previousIsAssignmentTarget = this.context.isAssignmentTarget; - var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError; - this.context.isBindingElement = true; - this.context.isAssignmentTarget = true; - this.context.firstCoverInitializedNameError = null; - var result = parseFunction.call(this); - if (this.context.firstCoverInitializedNameError !== null) { - this.throwUnexpectedToken(this.context.firstCoverInitializedNameError); - } - this.context.isBindingElement = previousIsBindingElement; - this.context.isAssignmentTarget = previousIsAssignmentTarget; - this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError; - return result; - }; - Parser.prototype.inheritCoverGrammar = function (parseFunction) { - var previousIsBindingElement = this.context.isBindingElement; - var previousIsAssignmentTarget = this.context.isAssignmentTarget; - var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError; - this.context.isBindingElement = true; - this.context.isAssignmentTarget = true; - this.context.firstCoverInitializedNameError = null; - var result = parseFunction.call(this); - this.context.isBindingElement = this.context.isBindingElement && previousIsBindingElement; - this.context.isAssignmentTarget = this.context.isAssignmentTarget && previousIsAssignmentTarget; - this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError || this.context.firstCoverInitializedNameError; - return result; - }; - Parser.prototype.consumeSemicolon = function () { - if (this.match(';')) { - this.nextToken(); - } - else if (!this.hasLineTerminator) { - if (this.lookahead.type !== 2 /* EOF */ && !this.match('}')) { - this.throwUnexpectedToken(this.lookahead); - } - this.lastMarker.index = this.startMarker.index; - this.lastMarker.line = this.startMarker.line; - this.lastMarker.column = this.startMarker.column; - } - }; - // https://tc39.github.io/ecma262/#sec-primary-expression - Parser.prototype.parsePrimaryExpression = function () { - var node = this.createNode(); - var expr; - var token, raw; - switch (this.lookahead.type) { - case 3 /* Identifier */: - if ((this.context.isModule || this.context.await) && this.lookahead.value === 'await') { - this.tolerateUnexpectedToken(this.lookahead); - } - expr = this.matchAsyncFunction() ? this.parseFunctionExpression() : this.finalize(node, new Node.Identifier(this.nextToken().value)); - break; - case 6 /* NumericLiteral */: - case 8 /* StringLiteral */: - if (this.context.strict && this.lookahead.octal) { - this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.StrictOctalLiteral); - } - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - token = this.nextToken(); - raw = this.getTokenRaw(token); - expr = this.finalize(node, new Node.Literal(token.value, raw)); - break; - case 1 /* BooleanLiteral */: - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - token = this.nextToken(); - raw = this.getTokenRaw(token); - expr = this.finalize(node, new Node.Literal(token.value === 'true', raw)); - break; - case 5 /* NullLiteral */: - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - token = this.nextToken(); - raw = this.getTokenRaw(token); - expr = this.finalize(node, new Node.Literal(null, raw)); - break; - case 10 /* Template */: - expr = this.parseTemplateLiteral(); - break; - case 7 /* Punctuator */: - switch (this.lookahead.value) { - case '(': - this.context.isBindingElement = false; - expr = this.inheritCoverGrammar(this.parseGroupExpression); - break; - case '[': - expr = this.inheritCoverGrammar(this.parseArrayInitializer); - break; - case '{': - expr = this.inheritCoverGrammar(this.parseObjectInitializer); - break; - case '/': - case '/=': - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - this.scanner.index = this.startMarker.index; - token = this.nextRegexToken(); - raw = this.getTokenRaw(token); - expr = this.finalize(node, new Node.RegexLiteral(token.regex, raw, token.pattern, token.flags)); - break; - default: - expr = this.throwUnexpectedToken(this.nextToken()); - } - break; - case 4 /* Keyword */: - if (!this.context.strict && this.context.allowYield && this.matchKeyword('yield')) { - expr = this.parseIdentifierName(); - } - else if (!this.context.strict && this.matchKeyword('let')) { - expr = this.finalize(node, new Node.Identifier(this.nextToken().value)); - } - else { - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - if (this.matchKeyword('function')) { - expr = this.parseFunctionExpression(); - } - else if (this.matchKeyword('this')) { - this.nextToken(); - expr = this.finalize(node, new Node.ThisExpression()); - } - else if (this.matchKeyword('class')) { - expr = this.parseClassExpression(); - } - else { - expr = this.throwUnexpectedToken(this.nextToken()); - } - } - break; - default: - expr = this.throwUnexpectedToken(this.nextToken()); - } - return expr; - }; - // https://tc39.github.io/ecma262/#sec-array-initializer - Parser.prototype.parseSpreadElement = function () { - var node = this.createNode(); - this.expect('...'); - var arg = this.inheritCoverGrammar(this.parseAssignmentExpression); - return this.finalize(node, new Node.SpreadElement(arg)); - }; - Parser.prototype.parseArrayInitializer = function () { - var node = this.createNode(); - var elements = []; - this.expect('['); - while (!this.match(']')) { - if (this.match(',')) { - this.nextToken(); - elements.push(null); - } - else if (this.match('...')) { - var element = this.parseSpreadElement(); - if (!this.match(']')) { - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - this.expect(','); - } - elements.push(element); - } - else { - elements.push(this.inheritCoverGrammar(this.parseAssignmentExpression)); - if (!this.match(']')) { - this.expect(','); - } - } - } - this.expect(']'); - return this.finalize(node, new Node.ArrayExpression(elements)); - }; - // https://tc39.github.io/ecma262/#sec-object-initializer - Parser.prototype.parsePropertyMethod = function (params) { - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - var previousStrict = this.context.strict; - var previousAllowStrictDirective = this.context.allowStrictDirective; - this.context.allowStrictDirective = params.simple; - var body = this.isolateCoverGrammar(this.parseFunctionSourceElements); - if (this.context.strict && params.firstRestricted) { - this.tolerateUnexpectedToken(params.firstRestricted, params.message); - } - if (this.context.strict && params.stricted) { - this.tolerateUnexpectedToken(params.stricted, params.message); - } - this.context.strict = previousStrict; - this.context.allowStrictDirective = previousAllowStrictDirective; - return body; - }; - Parser.prototype.parsePropertyMethodFunction = function () { - var isGenerator = false; - var node = this.createNode(); - var previousAllowYield = this.context.allowYield; - this.context.allowYield = 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.parsePropertyMethodAsyncFunction = function () { - var node = this.createNode(); - var previousAllowYield = this.context.allowYield; - var previousAwait = this.context.await; - this.context.allowYield = false; - this.context.await = true; - var params = this.parseFormalParameters(); - var method = this.parsePropertyMethod(params); - this.context.allowYield = previousAllowYield; - this.context.await = previousAwait; - return this.finalize(node, new Node.AsyncFunctionExpression(null, params.params, method)); - }; - Parser.prototype.parseObjectPropertyKey = function () { - var node = this.createNode(); - var token = this.nextToken(); - var key; - switch (token.type) { - case 8 /* StringLiteral */: - case 6 /* NumericLiteral */: - if (this.context.strict && token.octal) { - this.tolerateUnexpectedToken(token, messages_1.Messages.StrictOctalLiteral); - } - var raw = this.getTokenRaw(token); - key = this.finalize(node, new Node.Literal(token.value, raw)); - break; - case 3 /* Identifier */: - case 1 /* BooleanLiteral */: - case 5 /* NullLiteral */: - case 4 /* Keyword */: - key = this.finalize(node, new Node.Identifier(token.value)); - break; - case 7 /* Punctuator */: - if (token.value === '[') { - key = this.isolateCoverGrammar(this.parseAssignmentExpression); - this.expect(']'); - } - else { - key = this.throwUnexpectedToken(token); - } - break; - default: - key = this.throwUnexpectedToken(token); - } - return key; - }; - Parser.prototype.isPropertyKey = function (key, value) { - return (key.type === syntax_1.Syntax.Identifier && key.name === value) || - (key.type === syntax_1.Syntax.Literal && key.value === value); - }; - Parser.prototype.parseObjectProperty = function (hasProto) { - var node = this.createNode(); - var token = this.lookahead; - var kind; - var key = null; - var value = null; - var computed = false; - var method = false; - var shorthand = false; - var isAsync = false; - if (token.type === 3 /* Identifier */) { - var id = token.value; - this.nextToken(); - computed = this.match('['); - isAsync = !this.hasLineTerminator && (id === 'async') && - !this.match(':') && !this.match('(') && !this.match('*'); - key = isAsync ? this.parseObjectPropertyKey() : this.finalize(node, new Node.Identifier(id)); - } - else if (this.match('*')) { - this.nextToken(); - } - else { - computed = this.match('['); - key = this.parseObjectPropertyKey(); - } - var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead); - if (token.type === 3 /* Identifier */ && !isAsync && token.value === 'get' && lookaheadPropertyKey) { - kind = 'get'; - computed = this.match('['); - key = this.parseObjectPropertyKey(); - this.context.allowYield = false; - value = this.parseGetterMethod(); - } - else if (token.type === 3 /* Identifier */ && !isAsync && token.value === 'set' && lookaheadPropertyKey) { - kind = 'set'; - computed = this.match('['); - key = this.parseObjectPropertyKey(); - value = this.parseSetterMethod(); - } - else if (token.type === 7 /* Punctuator */ && token.value === '*' && lookaheadPropertyKey) { - kind = 'init'; - computed = this.match('['); - key = this.parseObjectPropertyKey(); - value = this.parseGeneratorMethod(); - method = true; - } - else { - if (!key) { - this.throwUnexpectedToken(this.lookahead); - } - kind = 'init'; - if (this.match(':') && !isAsync) { - if (!computed && this.isPropertyKey(key, '__proto__')) { - if (hasProto.value) { - this.tolerateError(messages_1.Messages.DuplicateProtoProperty); - } - hasProto.value = true; - } - this.nextToken(); - value = this.inheritCoverGrammar(this.parseAssignmentExpression); - } - else if (this.match('(')) { - value = isAsync ? this.parsePropertyMethodAsyncFunction() : this.parsePropertyMethodFunction(); - method = true; - } - else if (token.type === 3 /* Identifier */) { - var id = this.finalize(node, new Node.Identifier(token.value)); - if (this.match('=')) { - this.context.firstCoverInitializedNameError = this.lookahead; - this.nextToken(); - shorthand = true; - var init = this.isolateCoverGrammar(this.parseAssignmentExpression); - value = this.finalize(node, new Node.AssignmentPattern(id, init)); - } - else { - shorthand = true; - value = id; - } - } - else { - this.throwUnexpectedToken(this.nextToken()); - } - } - return this.finalize(node, new Node.Property(kind, key, computed, value, method, shorthand)); - }; - Parser.prototype.parseObjectInitializer = function () { - var node = this.createNode(); - this.expect('{'); - var properties = []; - var hasProto = { value: false }; - while (!this.match('}')) { - properties.push(this.parseObjectProperty(hasProto)); - if (!this.match('}')) { - this.expectCommaSeparator(); - } - } - this.expect('}'); - return this.finalize(node, new Node.ObjectExpression(properties)); - }; - // https://tc39.github.io/ecma262/#sec-template-literals - Parser.prototype.parseTemplateHead = function () { - assert_1.assert(this.lookahead.head, 'Template literal must start with a template head'); - var node = this.createNode(); - var token = this.nextToken(); - var raw = token.value; - var cooked = token.cooked; - return this.finalize(node, new Node.TemplateElement({ raw: raw, cooked: cooked }, token.tail)); - }; - Parser.prototype.parseTemplateElement = function () { - if (this.lookahead.type !== 10 /* Template */) { - this.throwUnexpectedToken(); - } - var node = this.createNode(); - var token = this.nextToken(); - var raw = token.value; - var cooked = token.cooked; - return this.finalize(node, new Node.TemplateElement({ raw: raw, cooked: cooked }, token.tail)); - }; - Parser.prototype.parseTemplateLiteral = function () { - var node = this.createNode(); - var expressions = []; - var quasis = []; - var quasi = this.parseTemplateHead(); - quasis.push(quasi); - while (!quasi.tail) { - expressions.push(this.parseExpression()); - quasi = this.parseTemplateElement(); - quasis.push(quasi); - } - return this.finalize(node, new Node.TemplateLiteral(quasis, expressions)); - }; - // https://tc39.github.io/ecma262/#sec-grouping-operator - Parser.prototype.reinterpretExpressionAsPattern = function (expr) { - switch (expr.type) { - case syntax_1.Syntax.Identifier: - case syntax_1.Syntax.MemberExpression: - case syntax_1.Syntax.RestElement: - case syntax_1.Syntax.AssignmentPattern: - break; - case syntax_1.Syntax.SpreadElement: - expr.type = syntax_1.Syntax.RestElement; - this.reinterpretExpressionAsPattern(expr.argument); - break; - case syntax_1.Syntax.ArrayExpression: - expr.type = syntax_1.Syntax.ArrayPattern; - for (var i = 0; i < expr.elements.length; i++) { - if (expr.elements[i] !== null) { - this.reinterpretExpressionAsPattern(expr.elements[i]); - } - } - break; - case syntax_1.Syntax.ObjectExpression: - expr.type = syntax_1.Syntax.ObjectPattern; - for (var i = 0; i < expr.properties.length; i++) { - this.reinterpretExpressionAsPattern(expr.properties[i].value); - } - break; - case syntax_1.Syntax.AssignmentExpression: - expr.type = syntax_1.Syntax.AssignmentPattern; - delete expr.operator; - this.reinterpretExpressionAsPattern(expr.left); - break; - default: - // Allow other node type for tolerant parsing. - break; - } - }; - Parser.prototype.parseGroupExpression = function () { - var expr; - this.expect('('); - if (this.match(')')) { - this.nextToken(); - if (!this.match('=>')) { - this.expect('=>'); - } - expr = { - type: ArrowParameterPlaceHolder, - params: [], - async: false - }; - } - else { - var startToken = this.lookahead; - var params = []; - if (this.match('...')) { - expr = this.parseRestElement(params); - this.expect(')'); - if (!this.match('=>')) { - this.expect('=>'); - } - expr = { - type: ArrowParameterPlaceHolder, - params: [expr], - async: false - }; - } - else { - var arrow = false; - this.context.isBindingElement = true; - expr = this.inheritCoverGrammar(this.parseAssignmentExpression); - if (this.match(',')) { - var expressions = []; - this.context.isAssignmentTarget = false; - expressions.push(expr); - while (this.lookahead.type !== 2 /* EOF */) { - if (!this.match(',')) { - break; - } - this.nextToken(); - if (this.match(')')) { - this.nextToken(); - for (var i = 0; i < expressions.length; i++) { - this.reinterpretExpressionAsPattern(expressions[i]); - } - arrow = true; - expr = { - type: ArrowParameterPlaceHolder, - params: expressions, - async: false - }; - } - else if (this.match('...')) { - if (!this.context.isBindingElement) { - this.throwUnexpectedToken(this.lookahead); - } - expressions.push(this.parseRestElement(params)); - this.expect(')'); - if (!this.match('=>')) { - this.expect('=>'); - } - this.context.isBindingElement = false; - for (var i = 0; i < expressions.length; i++) { - this.reinterpretExpressionAsPattern(expressions[i]); - } - arrow = true; - expr = { - type: ArrowParameterPlaceHolder, - params: expressions, - async: false - }; - } - else { - expressions.push(this.inheritCoverGrammar(this.parseAssignmentExpression)); - } - if (arrow) { - break; - } - } - if (!arrow) { - expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions)); - } - } - if (!arrow) { - this.expect(')'); - if (this.match('=>')) { - if (expr.type === syntax_1.Syntax.Identifier && expr.name === 'yield') { - arrow = true; - expr = { - type: ArrowParameterPlaceHolder, - params: [expr], - async: false - }; - } - if (!arrow) { - if (!this.context.isBindingElement) { - this.throwUnexpectedToken(this.lookahead); - } - if (expr.type === syntax_1.Syntax.SequenceExpression) { - for (var i = 0; i < expr.expressions.length; i++) { - this.reinterpretExpressionAsPattern(expr.expressions[i]); - } - } - else { - this.reinterpretExpressionAsPattern(expr); - } - var parameters = (expr.type === syntax_1.Syntax.SequenceExpression ? expr.expressions : [expr]); - expr = { - type: ArrowParameterPlaceHolder, - params: parameters, - async: false - }; - } - } - this.context.isBindingElement = false; - } - } - } - return expr; - }; - // https://tc39.github.io/ecma262/#sec-left-hand-side-expressions - Parser.prototype.parseArguments = function () { - this.expect('('); - var args = []; - if (!this.match(')')) { - while (true) { - var expr = this.match('...') ? this.parseSpreadElement() : - this.isolateCoverGrammar(this.parseAssignmentExpression); - args.push(expr); - if (this.match(')')) { - break; - } - this.expectCommaSeparator(); - if (this.match(')')) { - break; - } - } - } - this.expect(')'); - return args; - }; - Parser.prototype.isIdentifierName = function (token) { - return token.type === 3 /* Identifier */ || - token.type === 4 /* Keyword */ || - token.type === 1 /* BooleanLiteral */ || - token.type === 5 /* NullLiteral */; - }; - Parser.prototype.parseIdentifierName = function () { - var node = this.createNode(); - var token = this.nextToken(); - if (!this.isIdentifierName(token)) { - this.throwUnexpectedToken(token); - } - return this.finalize(node, new Node.Identifier(token.value)); - }; - Parser.prototype.parseNewExpression = function () { - var node = this.createNode(); - var id = this.parseIdentifierName(); - assert_1.assert(id.name === 'new', 'New expression must start with `new`'); - var expr; - if (this.match('.')) { - this.nextToken(); - if (this.lookahead.type === 3 /* Identifier */ && this.context.inFunctionBody && this.lookahead.value === 'target') { - var property = this.parseIdentifierName(); - expr = new Node.MetaProperty(id, property); - } - else { - this.throwUnexpectedToken(this.lookahead); - } - } - else { - var callee = this.isolateCoverGrammar(this.parseLeftHandSideExpression); - var args = this.match('(') ? this.parseArguments() : []; - expr = new Node.NewExpression(callee, args); - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - } - return this.finalize(node, expr); - }; - Parser.prototype.parseAsyncArgument = function () { - var arg = this.parseAssignmentExpression(); - this.context.firstCoverInitializedNameError = null; - return arg; - }; - Parser.prototype.parseAsyncArguments = function () { - this.expect('('); - var args = []; - if (!this.match(')')) { - while (true) { - var expr = this.match('...') ? this.parseSpreadElement() : - this.isolateCoverGrammar(this.parseAsyncArgument); - args.push(expr); - if (this.match(')')) { - break; - } - this.expectCommaSeparator(); - if (this.match(')')) { - break; - } - } - } - this.expect(')'); - return args; - }; - Parser.prototype.parseLeftHandSideExpressionAllowCall = function () { - var startToken = this.lookahead; - var maybeAsync = this.matchContextualKeyword('async'); - var previousAllowIn = this.context.allowIn; - this.context.allowIn = true; - var expr; - if (this.matchKeyword('super') && this.context.inFunctionBody) { - expr = this.createNode(); - this.nextToken(); - expr = this.finalize(expr, new Node.Super()); - if (!this.match('(') && !this.match('.') && !this.match('[')) { - this.throwUnexpectedToken(this.lookahead); - } - } - else { - expr = this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression); - } - while (true) { - if (this.match('.')) { - this.context.isBindingElement = false; - this.context.isAssignmentTarget = true; - this.expect('.'); - var property = this.parseIdentifierName(); - expr = this.finalize(this.startNode(startToken), new Node.StaticMemberExpression(expr, property)); - } - else if (this.match('(')) { - var asyncArrow = maybeAsync && (startToken.lineNumber === this.lookahead.lineNumber); - this.context.isBindingElement = false; - this.context.isAssignmentTarget = false; - var args = asyncArrow ? this.parseAsyncArguments() : this.parseArguments(); - expr = this.finalize(this.startNode(startToken), new Node.CallExpression(expr, args)); - if (asyncArrow && this.match('=>')) { - for (var i = 0; i < args.length; ++i) { - this.reinterpretExpressionAsPattern(args[i]); - } - expr = { - type: ArrowParameterPlaceHolder, - params: args, - async: true - }; - } - } - else if (this.match('[')) { - this.context.isBindingElement = false; - this.context.isAssignmentTarget = true; - this.expect('['); - var property = this.isolateCoverGrammar(this.parseExpression); - this.expect(']'); - expr = this.finalize(this.startNode(startToken), new Node.ComputedMemberExpression(expr, property)); - } - else if (this.lookahead.type === 10 /* Template */ && this.lookahead.head) { - var quasi = this.parseTemplateLiteral(); - expr = this.finalize(this.startNode(startToken), new Node.TaggedTemplateExpression(expr, quasi)); - } - else { - break; - } - } - this.context.allowIn = previousAllowIn; - return expr; - }; - Parser.prototype.parseSuper = function () { - var node = this.createNode(); - this.expectKeyword('super'); - if (!this.match('[') && !this.match('.')) { - this.throwUnexpectedToken(this.lookahead); - } - return this.finalize(node, new Node.Super()); - }; - Parser.prototype.parseLeftHandSideExpression = function () { - assert_1.assert(this.context.allowIn, 'callee of new expression always allow in keyword.'); - var node = this.startNode(this.lookahead); - var expr = (this.matchKeyword('super') && this.context.inFunctionBody) ? this.parseSuper() : - this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression); - while (true) { - if (this.match('[')) { - this.context.isBindingElement = false; - this.context.isAssignmentTarget = true; - this.expect('['); - var property = this.isolateCoverGrammar(this.parseExpression); - this.expect(']'); - expr = this.finalize(node, new Node.ComputedMemberExpression(expr, property)); - } - else if (this.match('.')) { - this.context.isBindingElement = false; - this.context.isAssignmentTarget = true; - this.expect('.'); - var property = this.parseIdentifierName(); - expr = this.finalize(node, new Node.StaticMemberExpression(expr, property)); - } - else if (this.lookahead.type === 10 /* Template */ && this.lookahead.head) { - var quasi = this.parseTemplateLiteral(); - expr = this.finalize(node, new Node.TaggedTemplateExpression(expr, quasi)); - } - else { - break; - } - } - return expr; - }; - // https://tc39.github.io/ecma262/#sec-update-expressions - Parser.prototype.parseUpdateExpression = function () { - var expr; - var startToken = this.lookahead; - if (this.match('++') || this.match('--')) { - var node = this.startNode(startToken); - var token = this.nextToken(); - expr = this.inheritCoverGrammar(this.parseUnaryExpression); - if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) { - this.tolerateError(messages_1.Messages.StrictLHSPrefix); - } - if (!this.context.isAssignmentTarget) { - this.tolerateError(messages_1.Messages.InvalidLHSInAssignment); - } - var prefix = true; - expr = this.finalize(node, new Node.UpdateExpression(token.value, expr, prefix)); - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - } - else { - expr = this.inheritCoverGrammar(this.parseLeftHandSideExpressionAllowCall); - if (!this.hasLineTerminator && this.lookahead.type === 7 /* Punctuator */) { - if (this.match('++') || this.match('--')) { - if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) { - this.tolerateError(messages_1.Messages.StrictLHSPostfix); - } - if (!this.context.isAssignmentTarget) { - this.tolerateError(messages_1.Messages.InvalidLHSInAssignment); - } - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - var operator = this.nextToken().value; - var prefix = false; - expr = this.finalize(this.startNode(startToken), new Node.UpdateExpression(operator, expr, prefix)); - } - } - } - return expr; - }; - // https://tc39.github.io/ecma262/#sec-unary-operators - Parser.prototype.parseAwaitExpression = function () { - var node = this.createNode(); - this.nextToken(); - var argument = this.parseUnaryExpression(); - return this.finalize(node, new Node.AwaitExpression(argument)); - }; - Parser.prototype.parseUnaryExpression = function () { - var expr; - if (this.match('+') || this.match('-') || this.match('~') || this.match('!') || - this.matchKeyword('delete') || this.matchKeyword('void') || this.matchKeyword('typeof')) { - var node = this.startNode(this.lookahead); - var token = this.nextToken(); - expr = this.inheritCoverGrammar(this.parseUnaryExpression); - expr = this.finalize(node, new Node.UnaryExpression(token.value, expr)); - if (this.context.strict && expr.operator === 'delete' && expr.argument.type === syntax_1.Syntax.Identifier) { - this.tolerateError(messages_1.Messages.StrictDelete); - } - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - } - else if (this.context.await && this.matchContextualKeyword('await')) { - expr = this.parseAwaitExpression(); - } - else { - expr = this.parseUpdateExpression(); - } - return expr; - }; - Parser.prototype.parseExponentiationExpression = function () { - var startToken = this.lookahead; - var expr = this.inheritCoverGrammar(this.parseUnaryExpression); - if (expr.type !== syntax_1.Syntax.UnaryExpression && this.match('**')) { - this.nextToken(); - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - var left = expr; - var right = this.isolateCoverGrammar(this.parseExponentiationExpression); - expr = this.finalize(this.startNode(startToken), new Node.BinaryExpression('**', left, right)); - } - return expr; - }; - // https://tc39.github.io/ecma262/#sec-exp-operator - // https://tc39.github.io/ecma262/#sec-multiplicative-operators - // https://tc39.github.io/ecma262/#sec-additive-operators - // https://tc39.github.io/ecma262/#sec-bitwise-shift-operators - // https://tc39.github.io/ecma262/#sec-relational-operators - // https://tc39.github.io/ecma262/#sec-equality-operators - // https://tc39.github.io/ecma262/#sec-binary-bitwise-operators - // https://tc39.github.io/ecma262/#sec-binary-logical-operators - Parser.prototype.binaryPrecedence = function (token) { - var op = token.value; - var precedence; - if (token.type === 7 /* Punctuator */) { - precedence = this.operatorPrecedence[op] || 0; - } - else if (token.type === 4 /* Keyword */) { - precedence = (op === 'instanceof' || (this.context.allowIn && op === 'in')) ? 7 : 0; - } - else { - precedence = 0; - } - return precedence; - }; - Parser.prototype.parseBinaryExpression = function () { - var startToken = this.lookahead; - var expr = this.inheritCoverGrammar(this.parseExponentiationExpression); - var token = this.lookahead; - var prec = this.binaryPrecedence(token); - if (prec > 0) { - this.nextToken(); - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - var markers = [startToken, this.lookahead]; - var left = expr; - var right = this.isolateCoverGrammar(this.parseExponentiationExpression); - var stack = [left, token.value, right]; - var precedences = [prec]; - while (true) { - prec = this.binaryPrecedence(this.lookahead); - if (prec <= 0) { - break; - } - // Reduce: make a binary expression from the three topmost entries. - while ((stack.length > 2) && (prec <= precedences[precedences.length - 1])) { - right = stack.pop(); - var operator = stack.pop(); - precedences.pop(); - left = stack.pop(); - markers.pop(); - var node = this.startNode(markers[markers.length - 1]); - stack.push(this.finalize(node, new Node.BinaryExpression(operator, left, right))); - } - // Shift. - stack.push(this.nextToken().value); - precedences.push(prec); - markers.push(this.lookahead); - stack.push(this.isolateCoverGrammar(this.parseExponentiationExpression)); - } - // Final reduce to clean-up the stack. - var i = stack.length - 1; - expr = stack[i]; - markers.pop(); - while (i > 1) { - var node = this.startNode(markers.pop()); - var operator = stack[i - 1]; - expr = this.finalize(node, new Node.BinaryExpression(operator, stack[i - 2], expr)); - i -= 2; - } - } - return expr; - }; - // https://tc39.github.io/ecma262/#sec-conditional-operator - Parser.prototype.parseConditionalExpression = function () { - var startToken = this.lookahead; - var expr = this.inheritCoverGrammar(this.parseBinaryExpression); - if (this.match('?')) { - this.nextToken(); - var previousAllowIn = this.context.allowIn; - this.context.allowIn = true; - var consequent = this.isolateCoverGrammar(this.parseAssignmentExpression); - this.context.allowIn = previousAllowIn; - this.expect(':'); - var alternate = this.isolateCoverGrammar(this.parseAssignmentExpression); - expr = this.finalize(this.startNode(startToken), new Node.ConditionalExpression(expr, consequent, alternate)); - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - } - return expr; - }; - // https://tc39.github.io/ecma262/#sec-assignment-operators - Parser.prototype.checkPatternParam = function (options, param) { - switch (param.type) { - case syntax_1.Syntax.Identifier: - this.validateParam(options, param, param.name); - break; - case syntax_1.Syntax.RestElement: - this.checkPatternParam(options, param.argument); - break; - case syntax_1.Syntax.AssignmentPattern: - this.checkPatternParam(options, param.left); - break; - case syntax_1.Syntax.ArrayPattern: - for (var i = 0; i < param.elements.length; i++) { - if (param.elements[i] !== null) { - this.checkPatternParam(options, param.elements[i]); - } - } - break; - case syntax_1.Syntax.ObjectPattern: - for (var i = 0; i < param.properties.length; i++) { - this.checkPatternParam(options, param.properties[i].value); - } - break; - default: - break; - } - options.simple = options.simple && (param instanceof Node.Identifier); - }; - Parser.prototype.reinterpretAsCoverFormalsList = function (expr) { - var params = [expr]; - var options; - var asyncArrow = false; - switch (expr.type) { - case syntax_1.Syntax.Identifier: - break; - case ArrowParameterPlaceHolder: - params = expr.params; - asyncArrow = expr.async; - break; - default: - return null; - } - options = { - simple: true, - paramSet: {} - }; - for (var i = 0; i < params.length; ++i) { - var param = params[i]; - if (param.type === syntax_1.Syntax.AssignmentPattern) { - if (param.right.type === syntax_1.Syntax.YieldExpression) { - if (param.right.argument) { - this.throwUnexpectedToken(this.lookahead); - } - param.right.type = syntax_1.Syntax.Identifier; - param.right.name = 'yield'; - delete param.right.argument; - delete param.right.delegate; - } - } - else if (asyncArrow && param.type === syntax_1.Syntax.Identifier && param.name === 'await') { - this.throwUnexpectedToken(this.lookahead); - } - this.checkPatternParam(options, param); - params[i] = param; - } - if (this.context.strict || !this.context.allowYield) { - for (var i = 0; i < params.length; ++i) { - var param = params[i]; - if (param.type === syntax_1.Syntax.YieldExpression) { - this.throwUnexpectedToken(this.lookahead); - } - } - } - if (options.message === messages_1.Messages.StrictParamDupe) { - var token = this.context.strict ? options.stricted : options.firstRestricted; - this.throwUnexpectedToken(token, options.message); - } - return { - simple: options.simple, - params: params, - stricted: options.stricted, - firstRestricted: options.firstRestricted, - message: options.message - }; - }; - Parser.prototype.parseAssignmentExpression = function () { - var expr; - if (!this.context.allowYield && this.matchKeyword('yield')) { - expr = this.parseYieldExpression(); - } - else { - var startToken = this.lookahead; - var token = startToken; - expr = this.parseConditionalExpression(); - if (token.type === 3 /* Identifier */ && (token.lineNumber === this.lookahead.lineNumber) && token.value === 'async') { - if (this.lookahead.type === 3 /* Identifier */ || this.matchKeyword('yield')) { - var arg = this.parsePrimaryExpression(); - this.reinterpretExpressionAsPattern(arg); - expr = { - type: ArrowParameterPlaceHolder, - params: [arg], - async: true - }; - } - } - if (expr.type === ArrowParameterPlaceHolder || this.match('=>')) { - // https://tc39.github.io/ecma262/#sec-arrow-function-definitions - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - var isAsync = expr.async; - var list = this.reinterpretAsCoverFormalsList(expr); - if (list) { - if (this.hasLineTerminator) { - this.tolerateUnexpectedToken(this.lookahead); - } - this.context.firstCoverInitializedNameError = null; - var previousStrict = this.context.strict; - var previousAllowStrictDirective = this.context.allowStrictDirective; - this.context.allowStrictDirective = list.simple; - var previousAllowYield = this.context.allowYield; - var previousAwait = this.context.await; - this.context.allowYield = true; - this.context.await = isAsync; - var node = this.startNode(startToken); - this.expect('=>'); - var body = void 0; - if (this.match('{')) { - var previousAllowIn = this.context.allowIn; - this.context.allowIn = true; - body = this.parseFunctionSourceElements(); - this.context.allowIn = previousAllowIn; - } - else { - body = this.isolateCoverGrammar(this.parseAssignmentExpression); - } - var expression = body.type !== syntax_1.Syntax.BlockStatement; - if (this.context.strict && list.firstRestricted) { - this.throwUnexpectedToken(list.firstRestricted, list.message); - } - if (this.context.strict && list.stricted) { - this.tolerateUnexpectedToken(list.stricted, list.message); - } - expr = isAsync ? this.finalize(node, new Node.AsyncArrowFunctionExpression(list.params, body, expression)) : - this.finalize(node, new Node.ArrowFunctionExpression(list.params, body, expression)); - this.context.strict = previousStrict; - this.context.allowStrictDirective = previousAllowStrictDirective; - this.context.allowYield = previousAllowYield; - this.context.await = previousAwait; - } - } - else { - if (this.matchAssign()) { - if (!this.context.isAssignmentTarget) { - this.tolerateError(messages_1.Messages.InvalidLHSInAssignment); - } - if (this.context.strict && expr.type === syntax_1.Syntax.Identifier) { - var id = expr; - if (this.scanner.isRestrictedWord(id.name)) { - this.tolerateUnexpectedToken(token, messages_1.Messages.StrictLHSAssignment); - } - if (this.scanner.isStrictModeReservedWord(id.name)) { - this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord); - } - } - if (!this.match('=')) { - this.context.isAssignmentTarget = false; - this.context.isBindingElement = false; - } - else { - this.reinterpretExpressionAsPattern(expr); - } - token = this.nextToken(); - var operator = token.value; - var right = this.isolateCoverGrammar(this.parseAssignmentExpression); - expr = this.finalize(this.startNode(startToken), new Node.AssignmentExpression(operator, expr, right)); - this.context.firstCoverInitializedNameError = null; - } - } - } - return expr; - }; - // https://tc39.github.io/ecma262/#sec-comma-operator - Parser.prototype.parseExpression = function () { - var startToken = this.lookahead; - var expr = this.isolateCoverGrammar(this.parseAssignmentExpression); - if (this.match(',')) { - var expressions = []; - expressions.push(expr); - while (this.lookahead.type !== 2 /* EOF */) { - if (!this.match(',')) { - break; - } - this.nextToken(); - expressions.push(this.isolateCoverGrammar(this.parseAssignmentExpression)); - } - expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions)); - } - return expr; - }; - // https://tc39.github.io/ecma262/#sec-block - Parser.prototype.parseStatementListItem = function () { - var statement; - this.context.isAssignmentTarget = true; - this.context.isBindingElement = true; - if (this.lookahead.type === 4 /* Keyword */) { - switch (this.lookahead.value) { - case 'export': - if (!this.context.isModule) { - this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalExportDeclaration); - } - statement = this.parseExportDeclaration(); - break; - case 'import': - if (!this.context.isModule) { - this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalImportDeclaration); - } - statement = this.parseImportDeclaration(); - break; - case 'const': - statement = this.parseLexicalDeclaration({ inFor: false }); - break; - case 'function': - statement = this.parseFunctionDeclaration(); - break; - case 'class': - statement = this.parseClassDeclaration(); - break; - case 'let': - statement = this.isLexicalDeclaration() ? this.parseLexicalDeclaration({ inFor: false }) : this.parseStatement(); - break; - default: - statement = this.parseStatement(); - break; - } - } - else { - statement = this.parseStatement(); - } - return statement; - }; - Parser.prototype.parseBlock = function () { - var node = this.createNode(); - this.expect('{'); - var block = []; - while (true) { - if (this.match('}')) { - break; - } - block.push(this.parseStatementListItem()); - } - this.expect('}'); - return this.finalize(node, new Node.BlockStatement(block)); - }; - // https://tc39.github.io/ecma262/#sec-let-and-const-declarations - Parser.prototype.parseLexicalBinding = function (kind, options) { - var node = this.createNode(); - var params = []; - var id = this.parsePattern(params, kind); - if (this.context.strict && id.type === syntax_1.Syntax.Identifier) { - if (this.scanner.isRestrictedWord(id.name)) { - this.tolerateError(messages_1.Messages.StrictVarName); - } - } - var init = null; - if (kind === 'const') { - if (!this.matchKeyword('in') && !this.matchContextualKeyword('of')) { - if (this.match('=')) { - this.nextToken(); - init = this.isolateCoverGrammar(this.parseAssignmentExpression); - } - else { - this.throwError(messages_1.Messages.DeclarationMissingInitializer, 'const'); - } - } - } - else if ((!options.inFor && id.type !== syntax_1.Syntax.Identifier) || this.match('=')) { - this.expect('='); - init = this.isolateCoverGrammar(this.parseAssignmentExpression); - } - return this.finalize(node, new Node.VariableDeclarator(id, init)); - }; - Parser.prototype.parseBindingList = function (kind, options) { - var list = [this.parseLexicalBinding(kind, options)]; - while (this.match(',')) { - this.nextToken(); - list.push(this.parseLexicalBinding(kind, options)); - } - return list; - }; - Parser.prototype.isLexicalDeclaration = function () { - var state = this.scanner.saveState(); - this.scanner.scanComments(); - var next = this.scanner.lex(); - this.scanner.restoreState(state); - return (next.type === 3 /* Identifier */) || - (next.type === 7 /* Punctuator */ && next.value === '[') || - (next.type === 7 /* Punctuator */ && next.value === '{') || - (next.type === 4 /* Keyword */ && next.value === 'let') || - (next.type === 4 /* Keyword */ && next.value === 'yield'); - }; - Parser.prototype.parseLexicalDeclaration = function (options) { - var node = this.createNode(); - var kind = this.nextToken().value; - assert_1.assert(kind === 'let' || kind === 'const', 'Lexical declaration must be either let or const'); - var declarations = this.parseBindingList(kind, options); - this.consumeSemicolon(); - return this.finalize(node, new Node.VariableDeclaration(declarations, kind)); - }; - // https://tc39.github.io/ecma262/#sec-destructuring-binding-patterns - Parser.prototype.parseBindingRestElement = function (params, kind) { - var node = this.createNode(); - this.expect('...'); - var arg = this.parsePattern(params, kind); - return this.finalize(node, new Node.RestElement(arg)); - }; - Parser.prototype.parseArrayPattern = function (params, kind) { - var node = this.createNode(); - this.expect('['); - var elements = []; - while (!this.match(']')) { - if (this.match(',')) { - this.nextToken(); - elements.push(null); - } - else { - if (this.match('...')) { - elements.push(this.parseBindingRestElement(params, kind)); - break; - } - else { - elements.push(this.parsePatternWithDefault(params, kind)); - } - if (!this.match(']')) { - this.expect(','); - } - } - } - this.expect(']'); - return this.finalize(node, new Node.ArrayPattern(elements)); - }; - Parser.prototype.parsePropertyPattern = function (params, kind) { - var node = this.createNode(); - var computed = false; - var shorthand = false; - var method = false; - var key; - var value; - if (this.lookahead.type === 3 /* Identifier */) { - var keyToken = this.lookahead; - key = this.parseVariableIdentifier(); - var init = this.finalize(node, new Node.Identifier(keyToken.value)); - if (this.match('=')) { - params.push(keyToken); - shorthand = true; - this.nextToken(); - var expr = this.parseAssignmentExpression(); - value = this.finalize(this.startNode(keyToken), new Node.AssignmentPattern(init, expr)); - } - else if (!this.match(':')) { - params.push(keyToken); - shorthand = true; - value = init; - } - else { - this.expect(':'); - value = this.parsePatternWithDefault(params, kind); - } - } - else { - computed = this.match('['); - key = this.parseObjectPropertyKey(); - this.expect(':'); - value = this.parsePatternWithDefault(params, kind); - } - return this.finalize(node, new Node.Property('init', key, computed, value, method, shorthand)); - }; - Parser.prototype.parseObjectPattern = function (params, kind) { - var node = this.createNode(); - var properties = []; - this.expect('{'); - while (!this.match('}')) { - properties.push(this.parsePropertyPattern(params, kind)); - if (!this.match('}')) { - this.expect(','); - } - } - this.expect('}'); - return this.finalize(node, new Node.ObjectPattern(properties)); - }; - Parser.prototype.parsePattern = function (params, kind) { - var pattern; - if (this.match('[')) { - pattern = this.parseArrayPattern(params, kind); - } - else if (this.match('{')) { - pattern = this.parseObjectPattern(params, kind); - } - else { - if (this.matchKeyword('let') && (kind === 'const' || kind === 'let')) { - this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.LetInLexicalBinding); - } - params.push(this.lookahead); - pattern = this.parseVariableIdentifier(kind); - } - return pattern; - }; - Parser.prototype.parsePatternWithDefault = function (params, kind) { - var startToken = this.lookahead; - var pattern = this.parsePattern(params, kind); - if (this.match('=')) { - this.nextToken(); - var previousAllowYield = this.context.allowYield; - this.context.allowYield = true; - var right = this.isolateCoverGrammar(this.parseAssignmentExpression); - this.context.allowYield = previousAllowYield; - pattern = this.finalize(this.startNode(startToken), new Node.AssignmentPattern(pattern, right)); - } - return pattern; - }; - // https://tc39.github.io/ecma262/#sec-variable-statement - Parser.prototype.parseVariableIdentifier = function (kind) { - var node = this.createNode(); - var token = this.nextToken(); - if (token.type === 4 /* Keyword */ && token.value === 'yield') { - if (this.context.strict) { - this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord); - } - else if (!this.context.allowYield) { - this.throwUnexpectedToken(token); - } - } - else if (token.type !== 3 /* Identifier */) { - if (this.context.strict && token.type === 4 /* Keyword */ && this.scanner.isStrictModeReservedWord(token.value)) { - this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord); - } - else { - if (this.context.strict || token.value !== 'let' || kind !== 'var') { - this.throwUnexpectedToken(token); - } - } - } - else if ((this.context.isModule || this.context.await) && token.type === 3 /* Identifier */ && token.value === 'await') { - this.tolerateUnexpectedToken(token); - } - return this.finalize(node, new Node.Identifier(token.value)); - }; - Parser.prototype.parseVariableDeclaration = function (options) { - var node = this.createNode(); - var params = []; - var id = this.parsePattern(params, 'var'); - if (this.context.strict && id.type === syntax_1.Syntax.Identifier) { - if (this.scanner.isRestrictedWord(id.name)) { - this.tolerateError(messages_1.Messages.StrictVarName); - } - } - var init = null; - if (this.match('=')) { - this.nextToken(); - init = this.isolateCoverGrammar(this.parseAssignmentExpression); - } - else if (id.type !== syntax_1.Syntax.Identifier && !options.inFor) { - this.expect('='); - } - return this.finalize(node, new Node.VariableDeclarator(id, init)); - }; - Parser.prototype.parseVariableDeclarationList = function (options) { - var opt = { inFor: options.inFor }; - var list = []; - list.push(this.parseVariableDeclaration(opt)); - while (this.match(',')) { - this.nextToken(); - list.push(this.parseVariableDeclaration(opt)); - } - return list; - }; - Parser.prototype.parseVariableStatement = function () { - var node = this.createNode(); - this.expectKeyword('var'); - var declarations = this.parseVariableDeclarationList({ inFor: false }); - this.consumeSemicolon(); - return this.finalize(node, new Node.VariableDeclaration(declarations, 'var')); - }; - // https://tc39.github.io/ecma262/#sec-empty-statement - Parser.prototype.parseEmptyStatement = function () { - var node = this.createNode(); - this.expect(';'); - return this.finalize(node, new Node.EmptyStatement()); - }; - // https://tc39.github.io/ecma262/#sec-expression-statement - Parser.prototype.parseExpressionStatement = function () { - var node = this.createNode(); - var expr = this.parseExpression(); - this.consumeSemicolon(); - return this.finalize(node, new Node.ExpressionStatement(expr)); - }; - // https://tc39.github.io/ecma262/#sec-if-statement - Parser.prototype.parseIfClause = function () { - if (this.context.strict && this.matchKeyword('function')) { - this.tolerateError(messages_1.Messages.StrictFunction); - } - return this.parseStatement(); - }; - Parser.prototype.parseIfStatement = function () { - var node = this.createNode(); - var consequent; - var alternate = null; - this.expectKeyword('if'); - this.expect('('); - var test = this.parseExpression(); - if (!this.match(')') && this.config.tolerant) { - this.tolerateUnexpectedToken(this.nextToken()); - consequent = this.finalize(this.createNode(), new Node.EmptyStatement()); - } - else { - this.expect(')'); - consequent = this.parseIfClause(); - if (this.matchKeyword('else')) { - this.nextToken(); - alternate = this.parseIfClause(); - } - } - return this.finalize(node, new Node.IfStatement(test, consequent, alternate)); - }; - // https://tc39.github.io/ecma262/#sec-do-while-statement - Parser.prototype.parseDoWhileStatement = function () { - var node = this.createNode(); - this.expectKeyword('do'); - var previousInIteration = this.context.inIteration; - this.context.inIteration = true; - var body = this.parseStatement(); - this.context.inIteration = previousInIteration; - this.expectKeyword('while'); - this.expect('('); - var test = this.parseExpression(); - if (!this.match(')') && this.config.tolerant) { - this.tolerateUnexpectedToken(this.nextToken()); - } - else { - this.expect(')'); - if (this.match(';')) { - this.nextToken(); - } - } - return this.finalize(node, new Node.DoWhileStatement(body, test)); - }; - // https://tc39.github.io/ecma262/#sec-while-statement - Parser.prototype.parseWhileStatement = function () { - var node = this.createNode(); - var body; - this.expectKeyword('while'); - this.expect('('); - var test = this.parseExpression(); - if (!this.match(')') && this.config.tolerant) { - this.tolerateUnexpectedToken(this.nextToken()); - body = this.finalize(this.createNode(), new Node.EmptyStatement()); - } - else { - this.expect(')'); - var previousInIteration = this.context.inIteration; - this.context.inIteration = true; - body = this.parseStatement(); - this.context.inIteration = previousInIteration; - } - return this.finalize(node, new Node.WhileStatement(test, body)); - }; - // https://tc39.github.io/ecma262/#sec-for-statement - // https://tc39.github.io/ecma262/#sec-for-in-and-for-of-statements - Parser.prototype.parseForStatement = function () { - var init = null; - var test = null; - var update = null; - var forIn = true; - var left, right; - var node = this.createNode(); - this.expectKeyword('for'); - this.expect('('); - if (this.match(';')) { - this.nextToken(); - } - else { - if (this.matchKeyword('var')) { - init = this.createNode(); - this.nextToken(); - var previousAllowIn = this.context.allowIn; - this.context.allowIn = false; - var declarations = this.parseVariableDeclarationList({ inFor: true }); - this.context.allowIn = previousAllowIn; - if (declarations.length === 1 && this.matchKeyword('in')) { - var decl = declarations[0]; - if (decl.init && (decl.id.type === syntax_1.Syntax.ArrayPattern || decl.id.type === syntax_1.Syntax.ObjectPattern || this.context.strict)) { - this.tolerateError(messages_1.Messages.ForInOfLoopInitializer, 'for-in'); - } - init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var')); - this.nextToken(); - left = init; - right = this.parseExpression(); - init = null; - } - else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) { - init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var')); - this.nextToken(); - left = init; - right = this.parseAssignmentExpression(); - init = null; - forIn = false; - } - else { - init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var')); - this.expect(';'); - } - } - else if (this.matchKeyword('const') || this.matchKeyword('let')) { - init = this.createNode(); - var kind = this.nextToken().value; - if (!this.context.strict && this.lookahead.value === 'in') { - init = this.finalize(init, new Node.Identifier(kind)); - this.nextToken(); - left = init; - right = this.parseExpression(); - init = null; - } - else { - var previousAllowIn = this.context.allowIn; - this.context.allowIn = false; - var declarations = this.parseBindingList(kind, { inFor: true }); - this.context.allowIn = previousAllowIn; - if (declarations.length === 1 && declarations[0].init === null && this.matchKeyword('in')) { - init = this.finalize(init, new Node.VariableDeclaration(declarations, kind)); - this.nextToken(); - left = init; - right = this.parseExpression(); - init = null; - } - else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) { - init = this.finalize(init, new Node.VariableDeclaration(declarations, kind)); - this.nextToken(); - left = init; - right = this.parseAssignmentExpression(); - init = null; - forIn = false; - } - else { - this.consumeSemicolon(); - init = this.finalize(init, new Node.VariableDeclaration(declarations, kind)); - } - } - } - else { - var initStartToken = this.lookahead; - var previousAllowIn = this.context.allowIn; - this.context.allowIn = false; - init = this.inheritCoverGrammar(this.parseAssignmentExpression); - this.context.allowIn = previousAllowIn; - if (this.matchKeyword('in')) { - if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) { - this.tolerateError(messages_1.Messages.InvalidLHSInForIn); - } - this.nextToken(); - this.reinterpretExpressionAsPattern(init); - left = init; - right = this.parseExpression(); - init = null; - } - else if (this.matchContextualKeyword('of')) { - if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) { - this.tolerateError(messages_1.Messages.InvalidLHSInForLoop); - } - this.nextToken(); - this.reinterpretExpressionAsPattern(init); - left = init; - right = this.parseAssignmentExpression(); - init = null; - forIn = false; - } - else { - if (this.match(',')) { - var initSeq = [init]; - while (this.match(',')) { - this.nextToken(); - initSeq.push(this.isolateCoverGrammar(this.parseAssignmentExpression)); - } - init = this.finalize(this.startNode(initStartToken), new Node.SequenceExpression(initSeq)); - } - this.expect(';'); - } - } - } - if (typeof left === 'undefined') { - if (!this.match(';')) { - test = this.parseExpression(); - } - this.expect(';'); - if (!this.match(')')) { - update = this.parseExpression(); - } - } - var body; - if (!this.match(')') && this.config.tolerant) { - this.tolerateUnexpectedToken(this.nextToken()); - body = this.finalize(this.createNode(), new Node.EmptyStatement()); - } - else { - this.expect(')'); - var previousInIteration = this.context.inIteration; - this.context.inIteration = true; - body = this.isolateCoverGrammar(this.parseStatement); - this.context.inIteration = previousInIteration; - } - return (typeof left === 'undefined') ? - this.finalize(node, new Node.ForStatement(init, test, update, body)) : - forIn ? this.finalize(node, new Node.ForInStatement(left, right, body)) : - this.finalize(node, new Node.ForOfStatement(left, right, body)); - }; - // https://tc39.github.io/ecma262/#sec-continue-statement - Parser.prototype.parseContinueStatement = function () { - var node = this.createNode(); - this.expectKeyword('continue'); - var label = null; - if (this.lookahead.type === 3 /* Identifier */ && !this.hasLineTerminator) { - var id = this.parseVariableIdentifier(); - label = id; - var key = '$' + id.name; - if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) { - this.throwError(messages_1.Messages.UnknownLabel, id.name); - } - } - this.consumeSemicolon(); - if (label === null && !this.context.inIteration) { - this.throwError(messages_1.Messages.IllegalContinue); - } - return this.finalize(node, new Node.ContinueStatement(label)); - }; - // https://tc39.github.io/ecma262/#sec-break-statement - Parser.prototype.parseBreakStatement = function () { - var node = this.createNode(); - this.expectKeyword('break'); - var label = null; - if (this.lookahead.type === 3 /* Identifier */ && !this.hasLineTerminator) { - var id = this.parseVariableIdentifier(); - var key = '$' + id.name; - if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) { - this.throwError(messages_1.Messages.UnknownLabel, id.name); - } - label = id; - } - this.consumeSemicolon(); - if (label === null && !this.context.inIteration && !this.context.inSwitch) { - this.throwError(messages_1.Messages.IllegalBreak); - } - return this.finalize(node, new Node.BreakStatement(label)); - }; - // https://tc39.github.io/ecma262/#sec-return-statement - Parser.prototype.parseReturnStatement = function () { - if (!this.context.inFunctionBody) { - this.tolerateError(messages_1.Messages.IllegalReturn); - } - var node = this.createNode(); - this.expectKeyword('return'); - var hasArgument = !this.match(';') && !this.match('}') && - !this.hasLineTerminator && this.lookahead.type !== 2 /* EOF */; - var argument = hasArgument ? this.parseExpression() : null; - this.consumeSemicolon(); - return this.finalize(node, new Node.ReturnStatement(argument)); - }; - // https://tc39.github.io/ecma262/#sec-with-statement - Parser.prototype.parseWithStatement = function () { - if (this.context.strict) { - this.tolerateError(messages_1.Messages.StrictModeWith); - } - var node = this.createNode(); - var body; - this.expectKeyword('with'); - this.expect('('); - var object = this.parseExpression(); - if (!this.match(')') && this.config.tolerant) { - this.tolerateUnexpectedToken(this.nextToken()); - body = this.finalize(this.createNode(), new Node.EmptyStatement()); - } - else { - this.expect(')'); - body = this.parseStatement(); - } - return this.finalize(node, new Node.WithStatement(object, body)); - }; - // https://tc39.github.io/ecma262/#sec-switch-statement - Parser.prototype.parseSwitchCase = function () { - var node = this.createNode(); - var test; - if (this.matchKeyword('default')) { - this.nextToken(); - test = null; - } - else { - this.expectKeyword('case'); - test = this.parseExpression(); - } - this.expect(':'); - var consequent = []; - while (true) { - if (this.match('}') || this.matchKeyword('default') || this.matchKeyword('case')) { - break; - } - consequent.push(this.parseStatementListItem()); - } - return this.finalize(node, new Node.SwitchCase(test, consequent)); - }; - Parser.prototype.parseSwitchStatement = function () { - var node = this.createNode(); - this.expectKeyword('switch'); - this.expect('('); - var discriminant = this.parseExpression(); - this.expect(')'); - var previousInSwitch = this.context.inSwitch; - this.context.inSwitch = true; - var cases = []; - var defaultFound = false; - this.expect('{'); - while (true) { - if (this.match('}')) { - break; - } - var clause = this.parseSwitchCase(); - if (clause.test === null) { - if (defaultFound) { - this.throwError(messages_1.Messages.MultipleDefaultsInSwitch); - } - defaultFound = true; - } - cases.push(clause); - } - this.expect('}'); - this.context.inSwitch = previousInSwitch; - return this.finalize(node, new Node.SwitchStatement(discriminant, cases)); - }; - // https://tc39.github.io/ecma262/#sec-labelled-statements - Parser.prototype.parseLabelledStatement = function () { - var node = this.createNode(); - var expr = this.parseExpression(); - var statement; - if ((expr.type === syntax_1.Syntax.Identifier) && this.match(':')) { - this.nextToken(); - var id = expr; - var key = '$' + id.name; - if (Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) { - this.throwError(messages_1.Messages.Redeclaration, 'Label', id.name); - } - this.context.labelSet[key] = true; - var body = void 0; - if (this.matchKeyword('class')) { - this.tolerateUnexpectedToken(this.lookahead); - body = this.parseClassDeclaration(); - } - else if (this.matchKeyword('function')) { - var token = this.lookahead; - var declaration = this.parseFunctionDeclaration(); - if (this.context.strict) { - this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunction); - } - else if (declaration.generator) { - this.tolerateUnexpectedToken(token, messages_1.Messages.GeneratorInLegacyContext); - } - body = declaration; - } - else { - body = this.parseStatement(); - } - delete this.context.labelSet[key]; - statement = new Node.LabeledStatement(id, body); - } - else { - this.consumeSemicolon(); - statement = new Node.ExpressionStatement(expr); - } - return this.finalize(node, statement); - }; - // https://tc39.github.io/ecma262/#sec-throw-statement - Parser.prototype.parseThrowStatement = function () { - var node = this.createNode(); - this.expectKeyword('throw'); - if (this.hasLineTerminator) { - this.throwError(messages_1.Messages.NewlineAfterThrow); - } - var argument = this.parseExpression(); - this.consumeSemicolon(); - return this.finalize(node, new Node.ThrowStatement(argument)); - }; - // https://tc39.github.io/ecma262/#sec-try-statement - Parser.prototype.parseCatchClause = function () { - var node = this.createNode(); - this.expectKeyword('catch'); - this.expect('('); - if (this.match(')')) { - this.throwUnexpectedToken(this.lookahead); - } - var params = []; - var param = this.parsePattern(params); - var paramMap = {}; - for (var i = 0; i < params.length; i++) { - var key = '$' + params[i].value; - if (Object.prototype.hasOwnProperty.call(paramMap, key)) { - this.tolerateError(messages_1.Messages.DuplicateBinding, params[i].value); - } - paramMap[key] = true; - } - if (this.context.strict && param.type === syntax_1.Syntax.Identifier) { - if (this.scanner.isRestrictedWord(param.name)) { - this.tolerateError(messages_1.Messages.StrictCatchVariable); - } - } - this.expect(')'); - var body = this.parseBlock(); - return this.finalize(node, new Node.CatchClause(param, body)); - }; - Parser.prototype.parseFinallyClause = function () { - this.expectKeyword('finally'); - return this.parseBlock(); - }; - Parser.prototype.parseTryStatement = function () { - var node = this.createNode(); - this.expectKeyword('try'); - var block = this.parseBlock(); - var handler = this.matchKeyword('catch') ? this.parseCatchClause() : null; - var finalizer = this.matchKeyword('finally') ? this.parseFinallyClause() : null; - if (!handler && !finalizer) { - this.throwError(messages_1.Messages.NoCatchOrFinally); - } - return this.finalize(node, new Node.TryStatement(block, handler, finalizer)); - }; - // https://tc39.github.io/ecma262/#sec-debugger-statement - Parser.prototype.parseDebuggerStatement = function () { - var node = this.createNode(); - this.expectKeyword('debugger'); - this.consumeSemicolon(); - return this.finalize(node, new Node.DebuggerStatement()); - }; - // https://tc39.github.io/ecma262/#sec-ecmascript-language-statements-and-declarations - Parser.prototype.parseStatement = function () { - var statement; - switch (this.lookahead.type) { - case 1 /* BooleanLiteral */: - case 5 /* NullLiteral */: - case 6 /* NumericLiteral */: - case 8 /* StringLiteral */: - case 10 /* Template */: - case 9 /* RegularExpression */: - statement = this.parseExpressionStatement(); - break; - case 7 /* Punctuator */: - var value = this.lookahead.value; - if (value === '{') { - statement = this.parseBlock(); - } - else if (value === '(') { - statement = this.parseExpressionStatement(); - } - else if (value === ';') { - statement = this.parseEmptyStatement(); - } - else { - statement = this.parseExpressionStatement(); - } - break; - case 3 /* Identifier */: - statement = this.matchAsyncFunction() ? this.parseFunctionDeclaration() : this.parseLabelledStatement(); - break; - case 4 /* Keyword */: - switch (this.lookahead.value) { - case 'break': - statement = this.parseBreakStatement(); - break; - case 'continue': - statement = this.parseContinueStatement(); - break; - case 'debugger': - statement = this.parseDebuggerStatement(); - break; - case 'do': - statement = this.parseDoWhileStatement(); - break; - case 'for': - statement = this.parseForStatement(); - break; - case 'function': - statement = this.parseFunctionDeclaration(); - break; - case 'if': - statement = this.parseIfStatement(); - break; - case 'return': - statement = this.parseReturnStatement(); - break; - case 'switch': - statement = this.parseSwitchStatement(); - break; - case 'throw': - statement = this.parseThrowStatement(); - break; - case 'try': - statement = this.parseTryStatement(); - break; - case 'var': - statement = this.parseVariableStatement(); - break; - case 'while': - statement = this.parseWhileStatement(); - break; - case 'with': - statement = this.parseWithStatement(); - break; - default: - statement = this.parseExpressionStatement(); - break; - } - break; - default: - statement = this.throwUnexpectedToken(this.lookahead); - } - return statement; - }; - // https://tc39.github.io/ecma262/#sec-function-definitions - Parser.prototype.parseFunctionSourceElements = function () { - var node = this.createNode(); - this.expect('{'); - var body = this.parseDirectivePrologues(); - var previousLabelSet = this.context.labelSet; - var previousInIteration = this.context.inIteration; - var previousInSwitch = this.context.inSwitch; - var previousInFunctionBody = this.context.inFunctionBody; - this.context.labelSet = {}; - this.context.inIteration = false; - this.context.inSwitch = false; - this.context.inFunctionBody = true; - while (this.lookahead.type !== 2 /* EOF */) { - if (this.match('}')) { - break; - } - body.push(this.parseStatementListItem()); - } - this.expect('}'); - this.context.labelSet = previousLabelSet; - this.context.inIteration = previousInIteration; - this.context.inSwitch = previousInSwitch; - this.context.inFunctionBody = previousInFunctionBody; - return this.finalize(node, new Node.BlockStatement(body)); - }; - Parser.prototype.validateParam = function (options, param, name) { - var key = '$' + name; - if (this.context.strict) { - if (this.scanner.isRestrictedWord(name)) { - options.stricted = param; - options.message = messages_1.Messages.StrictParamName; - } - if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) { - options.stricted = param; - options.message = messages_1.Messages.StrictParamDupe; - } - } - else if (!options.firstRestricted) { - if (this.scanner.isRestrictedWord(name)) { - options.firstRestricted = param; - options.message = messages_1.Messages.StrictParamName; - } - else if (this.scanner.isStrictModeReservedWord(name)) { - options.firstRestricted = param; - options.message = messages_1.Messages.StrictReservedWord; - } - else if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) { - options.stricted = param; - options.message = messages_1.Messages.StrictParamDupe; - } - } - /* istanbul ignore next */ - if (typeof Object.defineProperty === 'function') { - Object.defineProperty(options.paramSet, key, { value: true, enumerable: true, writable: true, configurable: true }); - } - else { - options.paramSet[key] = true; - } - }; - Parser.prototype.parseRestElement = function (params) { - var node = this.createNode(); - this.expect('...'); - var arg = this.parsePattern(params); - if (this.match('=')) { - this.throwError(messages_1.Messages.DefaultRestParameter); - } - if (!this.match(')')) { - this.throwError(messages_1.Messages.ParameterAfterRestParameter); - } - return this.finalize(node, new Node.RestElement(arg)); - }; - Parser.prototype.parseFormalParameter = function (options) { - var params = []; - var param = this.match('...') ? this.parseRestElement(params) : this.parsePatternWithDefault(params); - for (var i = 0; i < params.length; i++) { - this.validateParam(options, params[i], params[i].value); - } - options.simple = options.simple && (param instanceof Node.Identifier); - options.params.push(param); - }; - Parser.prototype.parseFormalParameters = function (firstRestricted) { - var options; - options = { - simple: true, - params: [], - firstRestricted: firstRestricted - }; - this.expect('('); - if (!this.match(')')) { - options.paramSet = {}; - while (this.lookahead.type !== 2 /* EOF */) { - this.parseFormalParameter(options); - if (this.match(')')) { - break; - } - this.expect(','); - if (this.match(')')) { - break; - } - } - } - this.expect(')'); - return { - simple: options.simple, - params: options.params, - stricted: options.stricted, - firstRestricted: options.firstRestricted, - message: options.message - }; - }; - Parser.prototype.matchAsyncFunction = function () { - var match = this.matchContextualKeyword('async'); - if (match) { - var state = this.scanner.saveState(); - this.scanner.scanComments(); - var next = this.scanner.lex(); - this.scanner.restoreState(state); - match = (state.lineNumber === next.lineNumber) && (next.type === 4 /* Keyword */) && (next.value === 'function'); - } - return match; - }; - Parser.prototype.parseFunctionDeclaration = function (identifierIsOptional) { - var node = this.createNode(); - var isAsync = this.matchContextualKeyword('async'); - if (isAsync) { - this.nextToken(); - } - this.expectKeyword('function'); - var isGenerator = isAsync ? false : this.match('*'); - if (isGenerator) { - this.nextToken(); - } - var message; - var id = null; - var firstRestricted = null; - if (!identifierIsOptional || !this.match('(')) { - var token = this.lookahead; - id = this.parseVariableIdentifier(); - if (this.context.strict) { - if (this.scanner.isRestrictedWord(token.value)) { - this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName); - } - } - else { - if (this.scanner.isRestrictedWord(token.value)) { - firstRestricted = token; - message = messages_1.Messages.StrictFunctionName; - } - else if (this.scanner.isStrictModeReservedWord(token.value)) { - firstRestricted = token; - message = messages_1.Messages.StrictReservedWord; - } - } - } - var previousAllowAwait = this.context.await; - var previousAllowYield = this.context.allowYield; - this.context.await = isAsync; - this.context.allowYield = !isGenerator; - var formalParameters = this.parseFormalParameters(firstRestricted); - var params = formalParameters.params; - var stricted = formalParameters.stricted; - firstRestricted = formalParameters.firstRestricted; - if (formalParameters.message) { - message = formalParameters.message; - } - var previousStrict = this.context.strict; - var previousAllowStrictDirective = this.context.allowStrictDirective; - this.context.allowStrictDirective = formalParameters.simple; - var body = this.parseFunctionSourceElements(); - if (this.context.strict && firstRestricted) { - this.throwUnexpectedToken(firstRestricted, message); - } - if (this.context.strict && stricted) { - this.tolerateUnexpectedToken(stricted, message); - } - this.context.strict = previousStrict; - this.context.allowStrictDirective = previousAllowStrictDirective; - this.context.await = previousAllowAwait; - this.context.allowYield = previousAllowYield; - return isAsync ? this.finalize(node, new Node.AsyncFunctionDeclaration(id, params, body)) : - this.finalize(node, new Node.FunctionDeclaration(id, params, body, isGenerator)); - }; - Parser.prototype.parseFunctionExpression = function () { - var node = this.createNode(); - var isAsync = this.matchContextualKeyword('async'); - if (isAsync) { - this.nextToken(); - } - this.expectKeyword('function'); - var isGenerator = isAsync ? false : this.match('*'); - if (isGenerator) { - this.nextToken(); - } - var message; - var id = null; - var firstRestricted; - var previousAllowAwait = this.context.await; - var previousAllowYield = this.context.allowYield; - this.context.await = isAsync; - this.context.allowYield = !isGenerator; - if (!this.match('(')) { - var token = this.lookahead; - id = (!this.context.strict && !isGenerator && this.matchKeyword('yield')) ? this.parseIdentifierName() : this.parseVariableIdentifier(); - if (this.context.strict) { - if (this.scanner.isRestrictedWord(token.value)) { - this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName); - } - } - else { - if (this.scanner.isRestrictedWord(token.value)) { - firstRestricted = token; - message = messages_1.Messages.StrictFunctionName; - } - else if (this.scanner.isStrictModeReservedWord(token.value)) { - firstRestricted = token; - message = messages_1.Messages.StrictReservedWord; - } - } - } - var formalParameters = this.parseFormalParameters(firstRestricted); - var params = formalParameters.params; - var stricted = formalParameters.stricted; - firstRestricted = formalParameters.firstRestricted; - if (formalParameters.message) { - message = formalParameters.message; - } - var previousStrict = this.context.strict; - var previousAllowStrictDirective = this.context.allowStrictDirective; - this.context.allowStrictDirective = formalParameters.simple; - var body = this.parseFunctionSourceElements(); - if (this.context.strict && firstRestricted) { - this.throwUnexpectedToken(firstRestricted, message); - } - if (this.context.strict && stricted) { - this.tolerateUnexpectedToken(stricted, message); - } - this.context.strict = previousStrict; - this.context.allowStrictDirective = previousAllowStrictDirective; - this.context.await = previousAllowAwait; - this.context.allowYield = previousAllowYield; - return isAsync ? this.finalize(node, new Node.AsyncFunctionExpression(id, params, body)) : - this.finalize(node, new Node.FunctionExpression(id, params, body, isGenerator)); - }; - // https://tc39.github.io/ecma262/#sec-directive-prologues-and-the-use-strict-directive - Parser.prototype.parseDirective = function () { - var token = this.lookahead; - var node = this.createNode(); - var expr = this.parseExpression(); - var directive = (expr.type === syntax_1.Syntax.Literal) ? this.getTokenRaw(token).slice(1, -1) : null; - this.consumeSemicolon(); - return this.finalize(node, directive ? new Node.Directive(expr, directive) : new Node.ExpressionStatement(expr)); - }; - Parser.prototype.parseDirectivePrologues = function () { - var firstRestricted = null; - var body = []; - while (true) { - var token = this.lookahead; - if (token.type !== 8 /* StringLiteral */) { - break; - } - var statement = this.parseDirective(); - body.push(statement); - var directive = statement.directive; - if (typeof directive !== 'string') { - break; - } - if (directive === 'use strict') { - this.context.strict = true; - if (firstRestricted) { - this.tolerateUnexpectedToken(firstRestricted, messages_1.Messages.StrictOctalLiteral); - } - if (!this.context.allowStrictDirective) { - this.tolerateUnexpectedToken(token, messages_1.Messages.IllegalLanguageModeDirective); - } - } - else { - if (!firstRestricted && token.octal) { - firstRestricted = token; - } - } - } - return body; - }; - // https://tc39.github.io/ecma262/#sec-method-definitions - Parser.prototype.qualifiedPropertyName = function (token) { - switch (token.type) { - case 3 /* Identifier */: - case 8 /* StringLiteral */: - case 1 /* BooleanLiteral */: - case 5 /* NullLiteral */: - case 6 /* NumericLiteral */: - case 4 /* Keyword */: - return true; - case 7 /* Punctuator */: - return token.value === '['; - default: - break; - } - return false; - }; - Parser.prototype.parseGetterMethod = function () { - var node = this.createNode(); - var isGenerator = false; - var previousAllowYield = this.context.allowYield; - this.context.allowYield = false; - var formalParameters = this.parseFormalParameters(); - if (formalParameters.params.length > 0) { - this.tolerateError(messages_1.Messages.BadGetterArity); - } - var method = this.parsePropertyMethod(formalParameters); - this.context.allowYield = previousAllowYield; - return this.finalize(node, new Node.FunctionExpression(null, formalParameters.params, method, isGenerator)); - }; - Parser.prototype.parseSetterMethod = function () { - var node = this.createNode(); - var isGenerator = false; - var previousAllowYield = this.context.allowYield; - this.context.allowYield = false; - var formalParameters = this.parseFormalParameters(); - if (formalParameters.params.length !== 1) { - this.tolerateError(messages_1.Messages.BadSetterArity); - } - else if (formalParameters.params[0] instanceof Node.RestElement) { - this.tolerateError(messages_1.Messages.BadSetterRestParameter); - } - var method = this.parsePropertyMethod(formalParameters); - this.context.allowYield = previousAllowYield; - return this.finalize(node, new Node.FunctionExpression(null, formalParameters.params, method, isGenerator)); - }; - Parser.prototype.parseGeneratorMethod = function () { - var node = this.createNode(); - var isGenerator = true; - var previousAllowYield = this.context.allowYield; - this.context.allowYield = true; - var params = this.parseFormalParameters(); - this.context.allowYield = false; - var method = this.parsePropertyMethod(params); - this.context.allowYield = previousAllowYield; - return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator)); - }; - // https://tc39.github.io/ecma262/#sec-generator-function-definitions - Parser.prototype.isStartOfExpression = function () { - var start = true; - var value = this.lookahead.value; - switch (this.lookahead.type) { - case 7 /* Punctuator */: - start = (value === '[') || (value === '(') || (value === '{') || - (value === '+') || (value === '-') || - (value === '!') || (value === '~') || - (value === '++') || (value === '--') || - (value === '/') || (value === '/='); // regular expression literal - break; - case 4 /* Keyword */: - start = (value === 'class') || (value === 'delete') || - (value === 'function') || (value === 'let') || (value === 'new') || - (value === 'super') || (value === 'this') || (value === 'typeof') || - (value === 'void') || (value === 'yield'); - break; - default: - break; - } - return start; - }; - Parser.prototype.parseYieldExpression = function () { - var node = this.createNode(); - this.expectKeyword('yield'); - var argument = null; - var delegate = false; - if (!this.hasLineTerminator) { - var previousAllowYield = this.context.allowYield; - this.context.allowYield = false; - delegate = this.match('*'); - if (delegate) { - this.nextToken(); - argument = this.parseAssignmentExpression(); - } - else if (this.isStartOfExpression()) { - argument = this.parseAssignmentExpression(); - } - this.context.allowYield = previousAllowYield; - } - return this.finalize(node, new Node.YieldExpression(argument, delegate)); - }; - // https://tc39.github.io/ecma262/#sec-class-definitions - Parser.prototype.parseClassElement = function (hasConstructor) { - var token = this.lookahead; - var node = this.createNode(); - var kind = ''; - var key = null; - var value = null; - var computed = false; - var method = false; - var isStatic = false; - var isAsync = false; - if (this.match('*')) { - this.nextToken(); - } - else { - computed = this.match('['); - key = this.parseObjectPropertyKey(); - var id = key; - if (id.name === 'static' && (this.qualifiedPropertyName(this.lookahead) || this.match('*'))) { - token = this.lookahead; - isStatic = true; - computed = this.match('['); - if (this.match('*')) { - this.nextToken(); - } - else { - key = this.parseObjectPropertyKey(); - } - } - if ((token.type === 3 /* Identifier */) && !this.hasLineTerminator && (token.value === 'async')) { - var punctuator = this.lookahead.value; - if (punctuator !== ':' && punctuator !== '(' && punctuator !== '*') { - isAsync = true; - token = this.lookahead; - key = this.parseObjectPropertyKey(); - if (token.type === 3 /* Identifier */) { - if (token.value === 'get' || token.value === 'set') { - this.tolerateUnexpectedToken(token); - } - else if (token.value === 'constructor') { - this.tolerateUnexpectedToken(token, messages_1.Messages.ConstructorIsAsync); - } - } - } - } - } - var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead); - if (token.type === 3 /* Identifier */) { - if (token.value === 'get' && lookaheadPropertyKey) { - kind = 'get'; - computed = this.match('['); - key = this.parseObjectPropertyKey(); - this.context.allowYield = false; - value = this.parseGetterMethod(); - } - else if (token.value === 'set' && lookaheadPropertyKey) { - kind = 'set'; - computed = this.match('['); - key = this.parseObjectPropertyKey(); - value = this.parseSetterMethod(); - } - } - else if (token.type === 7 /* Punctuator */ && token.value === '*' && lookaheadPropertyKey) { - kind = 'init'; - computed = this.match('['); - key = this.parseObjectPropertyKey(); - value = this.parseGeneratorMethod(); - method = true; - } - if (!kind && key && this.match('(')) { - kind = 'init'; - value = isAsync ? this.parsePropertyMethodAsyncFunction() : this.parsePropertyMethodFunction(); - method = true; - } - if (!kind) { - this.throwUnexpectedToken(this.lookahead); - } - if (kind === 'init') { - kind = 'method'; - } - if (!computed) { - if (isStatic && this.isPropertyKey(key, 'prototype')) { - this.throwUnexpectedToken(token, messages_1.Messages.StaticPrototype); - } - if (!isStatic && this.isPropertyKey(key, 'constructor')) { - if (kind !== 'method' || !method || (value && value.generator)) { - this.throwUnexpectedToken(token, messages_1.Messages.ConstructorSpecialMethod); - } - if (hasConstructor.value) { - this.throwUnexpectedToken(token, messages_1.Messages.DuplicateConstructor); - } - else { - hasConstructor.value = true; - } - kind = 'constructor'; - } - } - return this.finalize(node, new Node.MethodDefinition(key, computed, value, kind, isStatic)); - }; - Parser.prototype.parseClassElementList = function () { - var body = []; - var hasConstructor = { value: false }; - this.expect('{'); - while (!this.match('}')) { - if (this.match(';')) { - this.nextToken(); - } - else { - body.push(this.parseClassElement(hasConstructor)); - } - } - this.expect('}'); - return body; - }; - Parser.prototype.parseClassBody = function () { - var node = this.createNode(); - var elementList = this.parseClassElementList(); - return this.finalize(node, new Node.ClassBody(elementList)); - }; - Parser.prototype.parseClassDeclaration = function (identifierIsOptional) { - var node = this.createNode(); - var previousStrict = this.context.strict; - this.context.strict = true; - this.expectKeyword('class'); - var id = (identifierIsOptional && (this.lookahead.type !== 3 /* Identifier */)) ? null : this.parseVariableIdentifier(); - var superClass = null; - if (this.matchKeyword('extends')) { - this.nextToken(); - superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall); - } - var classBody = this.parseClassBody(); - this.context.strict = previousStrict; - return this.finalize(node, new Node.ClassDeclaration(id, superClass, classBody)); - }; - Parser.prototype.parseClassExpression = function () { - var node = this.createNode(); - var previousStrict = this.context.strict; - this.context.strict = true; - this.expectKeyword('class'); - var id = (this.lookahead.type === 3 /* Identifier */) ? this.parseVariableIdentifier() : null; - var superClass = null; - if (this.matchKeyword('extends')) { - this.nextToken(); - superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall); - } - var classBody = this.parseClassBody(); - this.context.strict = previousStrict; - return this.finalize(node, new Node.ClassExpression(id, superClass, classBody)); - }; - // https://tc39.github.io/ecma262/#sec-scripts - // https://tc39.github.io/ecma262/#sec-modules - Parser.prototype.parseModule = function () { - this.context.strict = true; - this.context.isModule = true; - var node = this.createNode(); - var body = this.parseDirectivePrologues(); - while (this.lookahead.type !== 2 /* EOF */) { - body.push(this.parseStatementListItem()); - } - return this.finalize(node, new Node.Module(body)); - }; - Parser.prototype.parseScript = function () { - var node = this.createNode(); - var body = this.parseDirectivePrologues(); - while (this.lookahead.type !== 2 /* EOF */) { - body.push(this.parseStatementListItem()); - } - return this.finalize(node, new Node.Script(body)); - }; - // https://tc39.github.io/ecma262/#sec-imports - Parser.prototype.parseModuleSpecifier = function () { - var node = this.createNode(); - if (this.lookahead.type !== 8 /* StringLiteral */) { - this.throwError(messages_1.Messages.InvalidModuleSpecifier); - } - var token = this.nextToken(); - var raw = this.getTokenRaw(token); - return this.finalize(node, new Node.Literal(token.value, raw)); - }; - // import {} ...; - Parser.prototype.parseImportSpecifier = function () { - var node = this.createNode(); - var imported; - var local; - if (this.lookahead.type === 3 /* Identifier */) { - imported = this.parseVariableIdentifier(); - local = imported; - if (this.matchContextualKeyword('as')) { - this.nextToken(); - local = this.parseVariableIdentifier(); - } - } - else { - imported = this.parseIdentifierName(); - local = imported; - if (this.matchContextualKeyword('as')) { - this.nextToken(); - local = this.parseVariableIdentifier(); - } - else { - this.throwUnexpectedToken(this.nextToken()); - } - } - return this.finalize(node, new Node.ImportSpecifier(local, imported)); - }; - // {foo, bar as bas} - Parser.prototype.parseNamedImports = function () { - this.expect('{'); - var specifiers = []; - while (!this.match('}')) { - specifiers.push(this.parseImportSpecifier()); - if (!this.match('}')) { - this.expect(','); - } - } - this.expect('}'); - return specifiers; - }; - // import ...; - Parser.prototype.parseImportDefaultSpecifier = function () { - var node = this.createNode(); - var local = this.parseIdentifierName(); - return this.finalize(node, new Node.ImportDefaultSpecifier(local)); - }; - // import <* as foo> ...; - Parser.prototype.parseImportNamespaceSpecifier = function () { - var node = this.createNode(); - this.expect('*'); - if (!this.matchContextualKeyword('as')) { - this.throwError(messages_1.Messages.NoAsAfterImportNamespace); - } - this.nextToken(); - var local = this.parseIdentifierName(); - return this.finalize(node, new Node.ImportNamespaceSpecifier(local)); - }; - Parser.prototype.parseImportDeclaration = function () { - if (this.context.inFunctionBody) { - this.throwError(messages_1.Messages.IllegalImportDeclaration); - } - var node = this.createNode(); - this.expectKeyword('import'); - var src; - var specifiers = []; - if (this.lookahead.type === 8 /* StringLiteral */) { - // import 'foo'; - src = this.parseModuleSpecifier(); - } - else { - if (this.match('{')) { - // import {bar} - specifiers = specifiers.concat(this.parseNamedImports()); - } - else if (this.match('*')) { - // import * as foo - specifiers.push(this.parseImportNamespaceSpecifier()); - } - else if (this.isIdentifierName(this.lookahead) && !this.matchKeyword('default')) { - // import foo - specifiers.push(this.parseImportDefaultSpecifier()); - if (this.match(',')) { - this.nextToken(); - if (this.match('*')) { - // import foo, * as foo - specifiers.push(this.parseImportNamespaceSpecifier()); - } - else if (this.match('{')) { - // import foo, {bar} - specifiers = specifiers.concat(this.parseNamedImports()); - } - else { - this.throwUnexpectedToken(this.lookahead); - } - } - } - else { - this.throwUnexpectedToken(this.nextToken()); - } - if (!this.matchContextualKeyword('from')) { - var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause; - this.throwError(message, this.lookahead.value); - } - this.nextToken(); - src = this.parseModuleSpecifier(); - } - this.consumeSemicolon(); - return this.finalize(node, new Node.ImportDeclaration(specifiers, src)); - }; - // https://tc39.github.io/ecma262/#sec-exports - Parser.prototype.parseExportSpecifier = function () { - var node = this.createNode(); - var local = this.parseIdentifierName(); - var exported = local; - if (this.matchContextualKeyword('as')) { - this.nextToken(); - exported = this.parseIdentifierName(); - } - return this.finalize(node, new Node.ExportSpecifier(local, exported)); - }; - Parser.prototype.parseExportDeclaration = function () { - if (this.context.inFunctionBody) { - this.throwError(messages_1.Messages.IllegalExportDeclaration); - } - var node = this.createNode(); - this.expectKeyword('export'); - var exportDeclaration; - if (this.matchKeyword('default')) { - // export default ... - this.nextToken(); - if (this.matchKeyword('function')) { - // export default function foo () {} - // export default function () {} - var declaration = this.parseFunctionDeclaration(true); - exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); - } - else if (this.matchKeyword('class')) { - // export default class foo {} - var declaration = this.parseClassDeclaration(true); - exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); - } - else if (this.matchContextualKeyword('async')) { - // export default async function f () {} - // export default async function () {} - // export default async x => x - var declaration = this.matchAsyncFunction() ? this.parseFunctionDeclaration(true) : this.parseAssignmentExpression(); - exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); - } - else { - if (this.matchContextualKeyword('from')) { - this.throwError(messages_1.Messages.UnexpectedToken, this.lookahead.value); - } - // export default {}; - // export default []; - // export default (1 + 2); - var declaration = this.match('{') ? this.parseObjectInitializer() : - this.match('[') ? this.parseArrayInitializer() : this.parseAssignmentExpression(); - this.consumeSemicolon(); - exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); - } - } - else if (this.match('*')) { - // export * from 'foo'; - this.nextToken(); - if (!this.matchContextualKeyword('from')) { - var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause; - this.throwError(message, this.lookahead.value); - } - this.nextToken(); - var src = this.parseModuleSpecifier(); - this.consumeSemicolon(); - exportDeclaration = this.finalize(node, new Node.ExportAllDeclaration(src)); - } - else if (this.lookahead.type === 4 /* Keyword */) { - // export var f = 1; - var declaration = void 0; - switch (this.lookahead.value) { - case 'let': - case 'const': - declaration = this.parseLexicalDeclaration({ inFor: false }); - break; - case 'var': - case 'class': - case 'function': - declaration = this.parseStatementListItem(); - break; - default: - this.throwUnexpectedToken(this.lookahead); - } - exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(declaration, [], null)); - } - else if (this.matchAsyncFunction()) { - var declaration = this.parseFunctionDeclaration(); - exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(declaration, [], null)); - } - else { - var specifiers = []; - var source = null; - var isExportFromIdentifier = false; - this.expect('{'); - while (!this.match('}')) { - isExportFromIdentifier = isExportFromIdentifier || this.matchKeyword('default'); - specifiers.push(this.parseExportSpecifier()); - if (!this.match('}')) { - this.expect(','); - } - } - this.expect('}'); - if (this.matchContextualKeyword('from')) { - // export {default} from 'foo'; - // export {foo} from 'foo'; - this.nextToken(); - source = this.parseModuleSpecifier(); - this.consumeSemicolon(); - } - else if (isExportFromIdentifier) { - // export {default}; // missing fromClause - var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause; - this.throwError(message, this.lookahead.value); - } - else { - // export {foo}; - this.consumeSemicolon(); - } - exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(null, specifiers, source)); - } - return exportDeclaration; - }; - return Parser; - }()); - exports.Parser = Parser; + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + var syntax_1 = __webpack_require__(2); + /* tslint:disable:max-classes-per-file */ + var ArrayExpression = (function () { + function ArrayExpression(elements) { + this.type = syntax_1.Syntax.ArrayExpression; + this.elements = elements; + } + return ArrayExpression; + }()); + exports.ArrayExpression = ArrayExpression; + var ArrayPattern = (function () { + function ArrayPattern(elements) { + this.type = syntax_1.Syntax.ArrayPattern; + this.elements = elements; + } + return ArrayPattern; + }()); + exports.ArrayPattern = ArrayPattern; + var ArrowFunctionExpression = (function () { + function ArrowFunctionExpression(params, body, expression) { + this.type = syntax_1.Syntax.ArrowFunctionExpression; + this.id = null; + this.params = params; + this.body = body; + this.generator = false; + this.expression = expression; + this.async = false; + } + return ArrowFunctionExpression; + }()); + exports.ArrowFunctionExpression = ArrowFunctionExpression; + var AssignmentExpression = (function () { + function AssignmentExpression(operator, left, right) { + this.type = syntax_1.Syntax.AssignmentExpression; + this.operator = operator; + this.left = left; + this.right = right; + } + return AssignmentExpression; + }()); + exports.AssignmentExpression = AssignmentExpression; + var AssignmentPattern = (function () { + function AssignmentPattern(left, right) { + this.type = syntax_1.Syntax.AssignmentPattern; + this.left = left; + this.right = right; + } + return AssignmentPattern; + }()); + exports.AssignmentPattern = AssignmentPattern; + var AsyncArrowFunctionExpression = (function () { + function AsyncArrowFunctionExpression(params, body, expression) { + this.type = syntax_1.Syntax.ArrowFunctionExpression; + this.id = null; + this.params = params; + this.body = body; + this.generator = false; + this.expression = expression; + this.async = true; + } + return AsyncArrowFunctionExpression; + }()); + exports.AsyncArrowFunctionExpression = AsyncArrowFunctionExpression; + var AsyncFunctionDeclaration = (function () { + function AsyncFunctionDeclaration(id, params, body) { + this.type = syntax_1.Syntax.FunctionDeclaration; + this.id = id; + this.params = params; + this.body = body; + this.generator = false; + this.expression = false; + this.async = true; + } + return AsyncFunctionDeclaration; + }()); + exports.AsyncFunctionDeclaration = AsyncFunctionDeclaration; + var AsyncFunctionExpression = (function () { + function AsyncFunctionExpression(id, params, body) { + this.type = syntax_1.Syntax.FunctionExpression; + this.id = id; + this.params = params; + this.body = body; + this.generator = false; + this.expression = false; + this.async = true; + } + return AsyncFunctionExpression; + }()); + exports.AsyncFunctionExpression = AsyncFunctionExpression; + var AwaitExpression = (function () { + function AwaitExpression(argument) { + this.type = syntax_1.Syntax.AwaitExpression; + this.argument = argument; + } + return AwaitExpression; + }()); + exports.AwaitExpression = AwaitExpression; + var BinaryExpression = (function () { + function BinaryExpression(operator, left, right) { + var logical = (operator === '||' || operator === '&&'); + this.type = logical ? syntax_1.Syntax.LogicalExpression : syntax_1.Syntax.BinaryExpression; + this.operator = operator; + this.left = left; + this.right = right; + } + return BinaryExpression; + }()); + exports.BinaryExpression = BinaryExpression; + var BlockStatement = (function () { + function BlockStatement(body) { + this.type = syntax_1.Syntax.BlockStatement; + this.body = body; + } + return BlockStatement; + }()); + exports.BlockStatement = BlockStatement; + var BreakStatement = (function () { + function BreakStatement(label) { + this.type = syntax_1.Syntax.BreakStatement; + this.label = label; + } + return BreakStatement; + }()); + exports.BreakStatement = BreakStatement; + var CallExpression = (function () { + function CallExpression(callee, args) { + this.type = syntax_1.Syntax.CallExpression; + this.callee = callee; + this.arguments = args; + } + return CallExpression; + }()); + exports.CallExpression = CallExpression; + var CatchClause = (function () { + function CatchClause(param, body) { + this.type = syntax_1.Syntax.CatchClause; + this.param = param; + this.body = body; + } + return CatchClause; + }()); + exports.CatchClause = CatchClause; + var ClassBody = (function () { + function ClassBody(body) { + this.type = syntax_1.Syntax.ClassBody; + this.body = body; + } + return ClassBody; + }()); + exports.ClassBody = ClassBody; + var ClassDeclaration = (function () { + function ClassDeclaration(id, superClass, body) { + this.type = syntax_1.Syntax.ClassDeclaration; + this.id = id; + this.superClass = superClass; + this.body = body; + } + return ClassDeclaration; + }()); + exports.ClassDeclaration = ClassDeclaration; + var ClassExpression = (function () { + function ClassExpression(id, superClass, body) { + this.type = syntax_1.Syntax.ClassExpression; + this.id = id; + this.superClass = superClass; + this.body = body; + } + return ClassExpression; + }()); + exports.ClassExpression = ClassExpression; + var ComputedMemberExpression = (function () { + function ComputedMemberExpression(object, property) { + this.type = syntax_1.Syntax.MemberExpression; + this.computed = true; + this.object = object; + this.property = property; + } + return ComputedMemberExpression; + }()); + exports.ComputedMemberExpression = ComputedMemberExpression; + var ConditionalExpression = (function () { + function ConditionalExpression(test, consequent, alternate) { + this.type = syntax_1.Syntax.ConditionalExpression; + this.test = test; + this.consequent = consequent; + this.alternate = alternate; + } + return ConditionalExpression; + }()); + exports.ConditionalExpression = ConditionalExpression; + var ContinueStatement = (function () { + function ContinueStatement(label) { + this.type = syntax_1.Syntax.ContinueStatement; + this.label = label; + } + return ContinueStatement; + }()); + exports.ContinueStatement = ContinueStatement; + var DebuggerStatement = (function () { + function DebuggerStatement() { + this.type = syntax_1.Syntax.DebuggerStatement; + } + return DebuggerStatement; + }()); + exports.DebuggerStatement = DebuggerStatement; + var Directive = (function () { + function Directive(expression, directive) { + this.type = syntax_1.Syntax.ExpressionStatement; + this.expression = expression; + this.directive = directive; + } + return Directive; + }()); + exports.Directive = Directive; + var DoWhileStatement = (function () { + function DoWhileStatement(body, test) { + this.type = syntax_1.Syntax.DoWhileStatement; + this.body = body; + this.test = test; + } + return DoWhileStatement; + }()); + exports.DoWhileStatement = DoWhileStatement; + var EmptyStatement = (function () { + function EmptyStatement() { + this.type = syntax_1.Syntax.EmptyStatement; + } + return EmptyStatement; + }()); + exports.EmptyStatement = EmptyStatement; + var ExportAllDeclaration = (function () { + function ExportAllDeclaration(source) { + this.type = syntax_1.Syntax.ExportAllDeclaration; + this.source = source; + } + return ExportAllDeclaration; + }()); + exports.ExportAllDeclaration = ExportAllDeclaration; + var ExportDefaultDeclaration = (function () { + function ExportDefaultDeclaration(declaration) { + this.type = syntax_1.Syntax.ExportDefaultDeclaration; + this.declaration = declaration; + } + return ExportDefaultDeclaration; + }()); + exports.ExportDefaultDeclaration = ExportDefaultDeclaration; + var ExportNamedDeclaration = (function () { + function ExportNamedDeclaration(declaration, specifiers, source) { + this.type = syntax_1.Syntax.ExportNamedDeclaration; + this.declaration = declaration; + this.specifiers = specifiers; + this.source = source; + } + return ExportNamedDeclaration; + }()); + exports.ExportNamedDeclaration = ExportNamedDeclaration; + var ExportSpecifier = (function () { + function ExportSpecifier(local, exported) { + this.type = syntax_1.Syntax.ExportSpecifier; + this.exported = exported; + this.local = local; + } + return ExportSpecifier; + }()); + exports.ExportSpecifier = ExportSpecifier; + var ExpressionStatement = (function () { + function ExpressionStatement(expression) { + this.type = syntax_1.Syntax.ExpressionStatement; + this.expression = expression; + } + return ExpressionStatement; + }()); + exports.ExpressionStatement = ExpressionStatement; + var ForInStatement = (function () { + function ForInStatement(left, right, body) { + this.type = syntax_1.Syntax.ForInStatement; + this.left = left; + this.right = right; + this.body = body; + this.each = false; + } + return ForInStatement; + }()); + exports.ForInStatement = ForInStatement; + var ForOfStatement = (function () { + function ForOfStatement(left, right, body) { + this.type = syntax_1.Syntax.ForOfStatement; + this.left = left; + this.right = right; + this.body = body; + } + return ForOfStatement; + }()); + exports.ForOfStatement = ForOfStatement; + var ForStatement = (function () { + function ForStatement(init, test, update, body) { + this.type = syntax_1.Syntax.ForStatement; + this.init = init; + this.test = test; + this.update = update; + this.body = body; + } + return ForStatement; + }()); + exports.ForStatement = ForStatement; + var FunctionDeclaration = (function () { + function FunctionDeclaration(id, params, body, generator) { + this.type = syntax_1.Syntax.FunctionDeclaration; + this.id = id; + this.params = params; + this.body = body; + this.generator = generator; + this.expression = false; + this.async = false; + } + return FunctionDeclaration; + }()); + exports.FunctionDeclaration = FunctionDeclaration; + var FunctionExpression = (function () { + function FunctionExpression(id, params, body, generator) { + this.type = syntax_1.Syntax.FunctionExpression; + this.id = id; + this.params = params; + this.body = body; + this.generator = generator; + this.expression = false; + this.async = false; + } + return FunctionExpression; + }()); + exports.FunctionExpression = FunctionExpression; + var Identifier = (function () { + function Identifier(name) { + this.type = syntax_1.Syntax.Identifier; + this.name = name; + } + return Identifier; + }()); + exports.Identifier = Identifier; + var IfStatement = (function () { + function IfStatement(test, consequent, alternate) { + this.type = syntax_1.Syntax.IfStatement; + this.test = test; + this.consequent = consequent; + this.alternate = alternate; + } + return IfStatement; + }()); + exports.IfStatement = IfStatement; + var ImportDeclaration = (function () { + function ImportDeclaration(specifiers, source) { + this.type = syntax_1.Syntax.ImportDeclaration; + this.specifiers = specifiers; + this.source = source; + } + return ImportDeclaration; + }()); + exports.ImportDeclaration = ImportDeclaration; + var ImportDefaultSpecifier = (function () { + function ImportDefaultSpecifier(local) { + this.type = syntax_1.Syntax.ImportDefaultSpecifier; + this.local = local; + } + return ImportDefaultSpecifier; + }()); + exports.ImportDefaultSpecifier = ImportDefaultSpecifier; + var ImportNamespaceSpecifier = (function () { + function ImportNamespaceSpecifier(local) { + this.type = syntax_1.Syntax.ImportNamespaceSpecifier; + this.local = local; + } + return ImportNamespaceSpecifier; + }()); + exports.ImportNamespaceSpecifier = ImportNamespaceSpecifier; + var ImportSpecifier = (function () { + function ImportSpecifier(local, imported) { + this.type = syntax_1.Syntax.ImportSpecifier; + this.local = local; + this.imported = imported; + } + return ImportSpecifier; + }()); + exports.ImportSpecifier = ImportSpecifier; + var LabeledStatement = (function () { + function LabeledStatement(label, body) { + this.type = syntax_1.Syntax.LabeledStatement; + this.label = label; + this.body = body; + } + return LabeledStatement; + }()); + exports.LabeledStatement = LabeledStatement; + var Literal = (function () { + function Literal(value, raw) { + this.type = syntax_1.Syntax.Literal; + this.value = value; + this.raw = raw; + } + return Literal; + }()); + exports.Literal = Literal; + var MetaProperty = (function () { + function MetaProperty(meta, property) { + this.type = syntax_1.Syntax.MetaProperty; + this.meta = meta; + this.property = property; + } + return MetaProperty; + }()); + exports.MetaProperty = MetaProperty; + var MethodDefinition = (function () { + function MethodDefinition(key, computed, value, kind, isStatic) { + this.type = syntax_1.Syntax.MethodDefinition; + this.key = key; + this.computed = computed; + this.value = value; + this.kind = kind; + this.static = isStatic; + } + return MethodDefinition; + }()); + exports.MethodDefinition = MethodDefinition; + var Module = (function () { + function Module(body) { + this.type = syntax_1.Syntax.Program; + this.body = body; + this.sourceType = 'module'; + } + return Module; + }()); + exports.Module = Module; + var NewExpression = (function () { + function NewExpression(callee, args) { + this.type = syntax_1.Syntax.NewExpression; + this.callee = callee; + this.arguments = args; + } + return NewExpression; + }()); + exports.NewExpression = NewExpression; + var ObjectExpression = (function () { + function ObjectExpression(properties) { + this.type = syntax_1.Syntax.ObjectExpression; + this.properties = properties; + } + return ObjectExpression; + }()); + exports.ObjectExpression = ObjectExpression; + var ObjectPattern = (function () { + function ObjectPattern(properties) { + this.type = syntax_1.Syntax.ObjectPattern; + this.properties = properties; + } + return ObjectPattern; + }()); + exports.ObjectPattern = ObjectPattern; + var Property = (function () { + function Property(kind, key, computed, value, method, shorthand) { + this.type = syntax_1.Syntax.Property; + this.key = key; + this.computed = computed; + this.value = value; + this.kind = kind; + this.method = method; + this.shorthand = shorthand; + } + return Property; + }()); + exports.Property = Property; + var RegexLiteral = (function () { + function RegexLiteral(value, raw, pattern, flags) { + this.type = syntax_1.Syntax.Literal; + this.value = value; + this.raw = raw; + this.regex = { pattern: pattern, flags: flags }; + } + return RegexLiteral; + }()); + exports.RegexLiteral = RegexLiteral; + var RestElement = (function () { + function RestElement(argument) { + this.type = syntax_1.Syntax.RestElement; + this.argument = argument; + } + return RestElement; + }()); + exports.RestElement = RestElement; + var ReturnStatement = (function () { + function ReturnStatement(argument) { + this.type = syntax_1.Syntax.ReturnStatement; + this.argument = argument; + } + return ReturnStatement; + }()); + exports.ReturnStatement = ReturnStatement; + var Script = (function () { + function Script(body) { + this.type = syntax_1.Syntax.Program; + this.body = body; + this.sourceType = 'script'; + } + return Script; + }()); + exports.Script = Script; + var SequenceExpression = (function () { + function SequenceExpression(expressions) { + this.type = syntax_1.Syntax.SequenceExpression; + this.expressions = expressions; + } + return SequenceExpression; + }()); + exports.SequenceExpression = SequenceExpression; + var SpreadElement = (function () { + function SpreadElement(argument) { + this.type = syntax_1.Syntax.SpreadElement; + this.argument = argument; + } + return SpreadElement; + }()); + exports.SpreadElement = SpreadElement; + var StaticMemberExpression = (function () { + function StaticMemberExpression(object, property) { + this.type = syntax_1.Syntax.MemberExpression; + this.computed = false; + this.object = object; + this.property = property; + } + return StaticMemberExpression; + }()); + exports.StaticMemberExpression = StaticMemberExpression; + var Super = (function () { + function Super() { + this.type = syntax_1.Syntax.Super; + } + return Super; + }()); + exports.Super = Super; + var SwitchCase = (function () { + function SwitchCase(test, consequent) { + this.type = syntax_1.Syntax.SwitchCase; + this.test = test; + this.consequent = consequent; + } + return SwitchCase; + }()); + exports.SwitchCase = SwitchCase; + var SwitchStatement = (function () { + function SwitchStatement(discriminant, cases) { + this.type = syntax_1.Syntax.SwitchStatement; + this.discriminant = discriminant; + this.cases = cases; + } + return SwitchStatement; + }()); + exports.SwitchStatement = SwitchStatement; + var TaggedTemplateExpression = (function () { + function TaggedTemplateExpression(tag, quasi) { + this.type = syntax_1.Syntax.TaggedTemplateExpression; + this.tag = tag; + this.quasi = quasi; + } + return TaggedTemplateExpression; + }()); + exports.TaggedTemplateExpression = TaggedTemplateExpression; + var TemplateElement = (function () { + function TemplateElement(value, tail) { + this.type = syntax_1.Syntax.TemplateElement; + this.value = value; + this.tail = tail; + } + return TemplateElement; + }()); + exports.TemplateElement = TemplateElement; + var TemplateLiteral = (function () { + function TemplateLiteral(quasis, expressions) { + this.type = syntax_1.Syntax.TemplateLiteral; + this.quasis = quasis; + this.expressions = expressions; + } + return TemplateLiteral; + }()); + exports.TemplateLiteral = TemplateLiteral; + var ThisExpression = (function () { + function ThisExpression() { + this.type = syntax_1.Syntax.ThisExpression; + } + return ThisExpression; + }()); + exports.ThisExpression = ThisExpression; + var ThrowStatement = (function () { + function ThrowStatement(argument) { + this.type = syntax_1.Syntax.ThrowStatement; + this.argument = argument; + } + return ThrowStatement; + }()); + exports.ThrowStatement = ThrowStatement; + var TryStatement = (function () { + function TryStatement(block, handler, finalizer) { + this.type = syntax_1.Syntax.TryStatement; + this.block = block; + this.handler = handler; + this.finalizer = finalizer; + } + return TryStatement; + }()); + exports.TryStatement = TryStatement; + var UnaryExpression = (function () { + function UnaryExpression(operator, argument) { + this.type = syntax_1.Syntax.UnaryExpression; + this.operator = operator; + this.argument = argument; + this.prefix = true; + } + return UnaryExpression; + }()); + exports.UnaryExpression = UnaryExpression; + var UpdateExpression = (function () { + function UpdateExpression(operator, argument, prefix) { + this.type = syntax_1.Syntax.UpdateExpression; + this.operator = operator; + this.argument = argument; + this.prefix = prefix; + } + return UpdateExpression; + }()); + exports.UpdateExpression = UpdateExpression; + var VariableDeclaration = (function () { + function VariableDeclaration(declarations, kind) { + this.type = syntax_1.Syntax.VariableDeclaration; + this.declarations = declarations; + this.kind = kind; + } + return VariableDeclaration; + }()); + exports.VariableDeclaration = VariableDeclaration; + var VariableDeclarator = (function () { + function VariableDeclarator(id, init) { + this.type = syntax_1.Syntax.VariableDeclarator; + this.id = id; + this.init = init; + } + return VariableDeclarator; + }()); + exports.VariableDeclarator = VariableDeclarator; + var WhileStatement = (function () { + function WhileStatement(test, body) { + this.type = syntax_1.Syntax.WhileStatement; + this.test = test; + this.body = body; + } + return WhileStatement; + }()); + exports.WhileStatement = WhileStatement; + var WithStatement = (function () { + function WithStatement(object, body) { + this.type = syntax_1.Syntax.WithStatement; + this.object = object; + this.body = body; + } + return WithStatement; + }()); + exports.WithStatement = WithStatement; + var YieldExpression = (function () { + function YieldExpression(argument, delegate) { + this.type = syntax_1.Syntax.YieldExpression; + this.argument = argument; + this.delegate = delegate; + } + return YieldExpression; + }()); + exports.YieldExpression = YieldExpression; + + +/***/ }, +/* 8 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + var assert_1 = __webpack_require__(9); + var error_handler_1 = __webpack_require__(10); + var messages_1 = __webpack_require__(11); + var Node = __webpack_require__(7); + var scanner_1 = __webpack_require__(12); + var syntax_1 = __webpack_require__(2); + var token_1 = __webpack_require__(13); + var ArrowParameterPlaceHolder = 'ArrowParameterPlaceHolder'; + var Parser = (function () { + function Parser(code, options, delegate) { + if (options === void 0) { options = {}; } + this.config = { + range: (typeof options.range === 'boolean') && options.range, + loc: (typeof options.loc === 'boolean') && options.loc, + source: null, + tokens: (typeof options.tokens === 'boolean') && options.tokens, + comment: (typeof options.comment === 'boolean') && options.comment, + tolerant: (typeof options.tolerant === 'boolean') && options.tolerant + }; + if (this.config.loc && options.source && options.source !== null) { + this.config.source = String(options.source); + } + this.delegate = delegate; + this.errorHandler = new error_handler_1.ErrorHandler(); + this.errorHandler.tolerant = this.config.tolerant; + this.scanner = new scanner_1.Scanner(code, this.errorHandler); + this.scanner.trackComment = this.config.comment; + this.operatorPrecedence = { + ')': 0, + ';': 0, + ',': 0, + '=': 0, + ']': 0, + '||': 1, + '&&': 2, + '|': 3, + '^': 4, + '&': 5, + '==': 6, + '!=': 6, + '===': 6, + '!==': 6, + '<': 7, + '>': 7, + '<=': 7, + '>=': 7, + '<<': 8, + '>>': 8, + '>>>': 8, + '+': 9, + '-': 9, + '*': 11, + '/': 11, + '%': 11 + }; + this.lookahead = { + type: 2 /* EOF */, + value: '', + lineNumber: this.scanner.lineNumber, + lineStart: 0, + start: 0, + end: 0 + }; + this.hasLineTerminator = false; + this.context = { + isModule: false, + await: false, + allowIn: true, + allowStrictDirective: true, + allowYield: true, + firstCoverInitializedNameError: null, + isAssignmentTarget: false, + isBindingElement: false, + inFunctionBody: false, + inIteration: false, + inSwitch: false, + labelSet: {}, + strict: false + }; + this.tokens = []; + this.startMarker = { + index: 0, + line: this.scanner.lineNumber, + column: 0 + }; + this.lastMarker = { + index: 0, + line: this.scanner.lineNumber, + column: 0 + }; + this.nextToken(); + this.lastMarker = { + index: this.scanner.index, + line: this.scanner.lineNumber, + column: this.scanner.index - this.scanner.lineStart + }; + } + Parser.prototype.throwError = function (messageFormat) { + var values = []; + for (var _i = 1; _i < arguments.length; _i++) { + values[_i - 1] = arguments[_i]; + } + var args = Array.prototype.slice.call(arguments, 1); + var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) { + assert_1.assert(idx < args.length, 'Message reference must be in range'); + return args[idx]; + }); + var index = this.lastMarker.index; + var line = this.lastMarker.line; + var column = this.lastMarker.column + 1; + throw this.errorHandler.createError(index, line, column, msg); + }; + Parser.prototype.tolerateError = function (messageFormat) { + var values = []; + for (var _i = 1; _i < arguments.length; _i++) { + values[_i - 1] = arguments[_i]; + } + var args = Array.prototype.slice.call(arguments, 1); + var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) { + assert_1.assert(idx < args.length, 'Message reference must be in range'); + return args[idx]; + }); + var index = this.lastMarker.index; + var line = this.scanner.lineNumber; + var column = this.lastMarker.column + 1; + this.errorHandler.tolerateError(index, line, column, msg); + }; + // Throw an exception because of the token. + Parser.prototype.unexpectedTokenError = function (token, message) { + var msg = message || messages_1.Messages.UnexpectedToken; + var value; + if (token) { + if (!message) { + msg = (token.type === 2 /* EOF */) ? messages_1.Messages.UnexpectedEOS : + (token.type === 3 /* Identifier */) ? messages_1.Messages.UnexpectedIdentifier : + (token.type === 6 /* NumericLiteral */) ? messages_1.Messages.UnexpectedNumber : + (token.type === 8 /* StringLiteral */) ? messages_1.Messages.UnexpectedString : + (token.type === 10 /* Template */) ? messages_1.Messages.UnexpectedTemplate : + messages_1.Messages.UnexpectedToken; + if (token.type === 4 /* Keyword */) { + if (this.scanner.isFutureReservedWord(token.value)) { + msg = messages_1.Messages.UnexpectedReserved; + } + else if (this.context.strict && this.scanner.isStrictModeReservedWord(token.value)) { + msg = messages_1.Messages.StrictReservedWord; + } + } + } + value = token.value; + } + else { + value = 'ILLEGAL'; + } + msg = msg.replace('%0', value); + if (token && typeof token.lineNumber === 'number') { + var index = token.start; + var line = token.lineNumber; + var lastMarkerLineStart = this.lastMarker.index - this.lastMarker.column; + var column = token.start - lastMarkerLineStart + 1; + return this.errorHandler.createError(index, line, column, msg); + } + else { + var index = this.lastMarker.index; + var line = this.lastMarker.line; + var column = this.lastMarker.column + 1; + return this.errorHandler.createError(index, line, column, msg); + } + }; + Parser.prototype.throwUnexpectedToken = function (token, message) { + throw this.unexpectedTokenError(token, message); + }; + Parser.prototype.tolerateUnexpectedToken = function (token, message) { + this.errorHandler.tolerate(this.unexpectedTokenError(token, message)); + }; + Parser.prototype.collectComments = function () { + if (!this.config.comment) { + this.scanner.scanComments(); + } + else { + var comments = this.scanner.scanComments(); + if (comments.length > 0 && this.delegate) { + for (var i = 0; i < comments.length; ++i) { + var e = comments[i]; + var node = void 0; + node = { + type: e.multiLine ? 'BlockComment' : 'LineComment', + value: this.scanner.source.slice(e.slice[0], e.slice[1]) + }; + if (this.config.range) { + node.range = e.range; + } + if (this.config.loc) { + node.loc = e.loc; + } + var metadata = { + start: { + line: e.loc.start.line, + column: e.loc.start.column, + offset: e.range[0] + }, + end: { + line: e.loc.end.line, + column: e.loc.end.column, + offset: e.range[1] + } + }; + this.delegate(node, metadata); + } + } + } + }; + // From internal representation to an external structure + Parser.prototype.getTokenRaw = function (token) { + return this.scanner.source.slice(token.start, token.end); + }; + Parser.prototype.convertToken = function (token) { + var t = { + type: token_1.TokenName[token.type], + value: this.getTokenRaw(token) + }; + if (this.config.range) { + t.range = [token.start, token.end]; + } + if (this.config.loc) { + t.loc = { + start: { + line: this.startMarker.line, + column: this.startMarker.column + }, + end: { + line: this.scanner.lineNumber, + column: this.scanner.index - this.scanner.lineStart + } + }; + } + if (token.type === 9 /* RegularExpression */) { + var pattern = token.pattern; + var flags = token.flags; + t.regex = { pattern: pattern, flags: flags }; + } + return t; + }; + Parser.prototype.nextToken = function () { + var token = this.lookahead; + this.lastMarker.index = this.scanner.index; + this.lastMarker.line = this.scanner.lineNumber; + this.lastMarker.column = this.scanner.index - this.scanner.lineStart; + this.collectComments(); + if (this.scanner.index !== this.startMarker.index) { + this.startMarker.index = this.scanner.index; + this.startMarker.line = this.scanner.lineNumber; + this.startMarker.column = this.scanner.index - this.scanner.lineStart; + } + var next = this.scanner.lex(); + this.hasLineTerminator = (token.lineNumber !== next.lineNumber); + if (next && this.context.strict && next.type === 3 /* Identifier */) { + if (this.scanner.isStrictModeReservedWord(next.value)) { + next.type = 4 /* Keyword */; + } + } + this.lookahead = next; + if (this.config.tokens && next.type !== 2 /* EOF */) { + this.tokens.push(this.convertToken(next)); + } + return token; + }; + Parser.prototype.nextRegexToken = function () { + this.collectComments(); + var token = this.scanner.scanRegExp(); + if (this.config.tokens) { + // Pop the previous token, '/' or '/=' + // This is added from the lookahead token. + this.tokens.pop(); + this.tokens.push(this.convertToken(token)); + } + // Prime the next lookahead. + this.lookahead = token; + this.nextToken(); + return token; + }; + Parser.prototype.createNode = function () { + return { + index: this.startMarker.index, + line: this.startMarker.line, + column: this.startMarker.column + }; + }; + Parser.prototype.startNode = function (token, lastLineStart) { + if (lastLineStart === void 0) { lastLineStart = 0; } + var column = token.start - token.lineStart; + var line = token.lineNumber; + if (column < 0) { + column += lastLineStart; + line--; + } + return { + index: token.start, + line: line, + column: column + }; + }; + Parser.prototype.finalize = function (marker, node) { + if (this.config.range) { + node.range = [marker.index, this.lastMarker.index]; + } + if (this.config.loc) { + node.loc = { + start: { + line: marker.line, + column: marker.column, + }, + end: { + line: this.lastMarker.line, + column: this.lastMarker.column + } + }; + if (this.config.source) { + node.loc.source = this.config.source; + } + } + if (this.delegate) { + var metadata = { + start: { + line: marker.line, + column: marker.column, + offset: marker.index + }, + end: { + line: this.lastMarker.line, + column: this.lastMarker.column, + offset: this.lastMarker.index + } + }; + this.delegate(node, metadata); + } + return node; + }; + // Expect the next token to match the specified punctuator. + // If not, an exception will be thrown. + Parser.prototype.expect = function (value) { + var token = this.nextToken(); + if (token.type !== 7 /* Punctuator */ || token.value !== value) { + this.throwUnexpectedToken(token); + } + }; + // Quietly expect a comma when in tolerant mode, otherwise delegates to expect(). + Parser.prototype.expectCommaSeparator = function () { + if (this.config.tolerant) { + var token = this.lookahead; + if (token.type === 7 /* Punctuator */ && token.value === ',') { + this.nextToken(); + } + else if (token.type === 7 /* Punctuator */ && token.value === ';') { + this.nextToken(); + this.tolerateUnexpectedToken(token); + } + else { + this.tolerateUnexpectedToken(token, messages_1.Messages.UnexpectedToken); + } + } + else { + this.expect(','); + } + }; + // Expect the next token to match the specified keyword. + // If not, an exception will be thrown. + Parser.prototype.expectKeyword = function (keyword) { + var token = this.nextToken(); + if (token.type !== 4 /* Keyword */ || token.value !== keyword) { + this.throwUnexpectedToken(token); + } + }; + // Return true if the next token matches the specified punctuator. + Parser.prototype.match = function (value) { + return this.lookahead.type === 7 /* Punctuator */ && this.lookahead.value === value; + }; + // Return true if the next token matches the specified keyword + Parser.prototype.matchKeyword = function (keyword) { + return this.lookahead.type === 4 /* Keyword */ && this.lookahead.value === keyword; + }; + // Return true if the next token matches the specified contextual keyword + // (where an identifier is sometimes a keyword depending on the context) + Parser.prototype.matchContextualKeyword = function (keyword) { + return this.lookahead.type === 3 /* Identifier */ && this.lookahead.value === keyword; + }; + // Return true if the next token is an assignment operator + Parser.prototype.matchAssign = function () { + if (this.lookahead.type !== 7 /* Punctuator */) { + return false; + } + var op = this.lookahead.value; + return op === '=' || + op === '*=' || + op === '**=' || + op === '/=' || + op === '%=' || + op === '+=' || + op === '-=' || + op === '<<=' || + op === '>>=' || + op === '>>>=' || + op === '&=' || + op === '^=' || + op === '|='; + }; + // Cover grammar support. + // + // When an assignment expression position starts with an left parenthesis, the determination of the type + // of the syntax is to be deferred arbitrarily long until the end of the parentheses pair (plus a lookahead) + // or the first comma. This situation also defers the determination of all the expressions nested in the pair. + // + // There are three productions that can be parsed in a parentheses pair that needs to be determined + // after the outermost pair is closed. They are: + // + // 1. AssignmentExpression + // 2. BindingElements + // 3. AssignmentTargets + // + // In order to avoid exponential backtracking, we use two flags to denote if the production can be + // binding element or assignment target. + // + // The three productions have the relationship: + // + // BindingElements ⊆ AssignmentTargets ⊆ AssignmentExpression + // + // with a single exception that CoverInitializedName when used directly in an Expression, generates + // an early error. Therefore, we need the third state, firstCoverInitializedNameError, to track the + // first usage of CoverInitializedName and report it when we reached the end of the parentheses pair. + // + // isolateCoverGrammar function runs the given parser function with a new cover grammar context, and it does not + // effect the current flags. This means the production the parser parses is only used as an expression. Therefore + // the CoverInitializedName check is conducted. + // + // inheritCoverGrammar function runs the given parse function with a new cover grammar context, and it propagates + // the flags outside of the parser. This means the production the parser parses is used as a part of a potential + // pattern. The CoverInitializedName check is deferred. + Parser.prototype.isolateCoverGrammar = function (parseFunction) { + var previousIsBindingElement = this.context.isBindingElement; + var previousIsAssignmentTarget = this.context.isAssignmentTarget; + var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError; + this.context.isBindingElement = true; + this.context.isAssignmentTarget = true; + this.context.firstCoverInitializedNameError = null; + var result = parseFunction.call(this); + if (this.context.firstCoverInitializedNameError !== null) { + this.throwUnexpectedToken(this.context.firstCoverInitializedNameError); + } + this.context.isBindingElement = previousIsBindingElement; + this.context.isAssignmentTarget = previousIsAssignmentTarget; + this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError; + return result; + }; + Parser.prototype.inheritCoverGrammar = function (parseFunction) { + var previousIsBindingElement = this.context.isBindingElement; + var previousIsAssignmentTarget = this.context.isAssignmentTarget; + var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError; + this.context.isBindingElement = true; + this.context.isAssignmentTarget = true; + this.context.firstCoverInitializedNameError = null; + var result = parseFunction.call(this); + this.context.isBindingElement = this.context.isBindingElement && previousIsBindingElement; + this.context.isAssignmentTarget = this.context.isAssignmentTarget && previousIsAssignmentTarget; + this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError || this.context.firstCoverInitializedNameError; + return result; + }; + Parser.prototype.consumeSemicolon = function () { + if (this.match(';')) { + this.nextToken(); + } + else if (!this.hasLineTerminator) { + if (this.lookahead.type !== 2 /* EOF */ && !this.match('}')) { + this.throwUnexpectedToken(this.lookahead); + } + this.lastMarker.index = this.startMarker.index; + this.lastMarker.line = this.startMarker.line; + this.lastMarker.column = this.startMarker.column; + } + }; + // https://tc39.github.io/ecma262/#sec-primary-expression + Parser.prototype.parsePrimaryExpression = function () { + var node = this.createNode(); + var expr; + var token, raw; + switch (this.lookahead.type) { + case 3 /* Identifier */: + if ((this.context.isModule || this.context.await) && this.lookahead.value === 'await') { + this.tolerateUnexpectedToken(this.lookahead); + } + expr = this.matchAsyncFunction() ? this.parseFunctionExpression() : this.finalize(node, new Node.Identifier(this.nextToken().value)); + break; + case 6 /* NumericLiteral */: + case 8 /* StringLiteral */: + if (this.context.strict && this.lookahead.octal) { + this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.StrictOctalLiteral); + } + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + token = this.nextToken(); + raw = this.getTokenRaw(token); + expr = this.finalize(node, new Node.Literal(token.value, raw)); + break; + case 1 /* BooleanLiteral */: + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + token = this.nextToken(); + raw = this.getTokenRaw(token); + expr = this.finalize(node, new Node.Literal(token.value === 'true', raw)); + break; + case 5 /* NullLiteral */: + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + token = this.nextToken(); + raw = this.getTokenRaw(token); + expr = this.finalize(node, new Node.Literal(null, raw)); + break; + case 10 /* Template */: + expr = this.parseTemplateLiteral(); + break; + case 7 /* Punctuator */: + switch (this.lookahead.value) { + case '(': + this.context.isBindingElement = false; + expr = this.inheritCoverGrammar(this.parseGroupExpression); + break; + case '[': + expr = this.inheritCoverGrammar(this.parseArrayInitializer); + break; + case '{': + expr = this.inheritCoverGrammar(this.parseObjectInitializer); + break; + case '/': + case '/=': + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + this.scanner.index = this.startMarker.index; + token = this.nextRegexToken(); + raw = this.getTokenRaw(token); + expr = this.finalize(node, new Node.RegexLiteral(token.regex, raw, token.pattern, token.flags)); + break; + default: + expr = this.throwUnexpectedToken(this.nextToken()); + } + break; + case 4 /* Keyword */: + if (!this.context.strict && this.context.allowYield && this.matchKeyword('yield')) { + expr = this.parseIdentifierName(); + } + else if (!this.context.strict && this.matchKeyword('let')) { + expr = this.finalize(node, new Node.Identifier(this.nextToken().value)); + } + else { + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + if (this.matchKeyword('function')) { + expr = this.parseFunctionExpression(); + } + else if (this.matchKeyword('this')) { + this.nextToken(); + expr = this.finalize(node, new Node.ThisExpression()); + } + else if (this.matchKeyword('class')) { + expr = this.parseClassExpression(); + } + else { + expr = this.throwUnexpectedToken(this.nextToken()); + } + } + break; + default: + expr = this.throwUnexpectedToken(this.nextToken()); + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-array-initializer + Parser.prototype.parseSpreadElement = function () { + var node = this.createNode(); + this.expect('...'); + var arg = this.inheritCoverGrammar(this.parseAssignmentExpression); + return this.finalize(node, new Node.SpreadElement(arg)); + }; + Parser.prototype.parseArrayInitializer = function () { + var node = this.createNode(); + var elements = []; + this.expect('['); + while (!this.match(']')) { + if (this.match(',')) { + this.nextToken(); + elements.push(null); + } + else if (this.match('...')) { + var element = this.parseSpreadElement(); + if (!this.match(']')) { + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + this.expect(','); + } + elements.push(element); + } + else { + elements.push(this.inheritCoverGrammar(this.parseAssignmentExpression)); + if (!this.match(']')) { + this.expect(','); + } + } + } + this.expect(']'); + return this.finalize(node, new Node.ArrayExpression(elements)); + }; + // https://tc39.github.io/ecma262/#sec-object-initializer + Parser.prototype.parsePropertyMethod = function (params) { + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + var previousStrict = this.context.strict; + var previousAllowStrictDirective = this.context.allowStrictDirective; + this.context.allowStrictDirective = params.simple; + var body = this.isolateCoverGrammar(this.parseFunctionSourceElements); + if (this.context.strict && params.firstRestricted) { + this.tolerateUnexpectedToken(params.firstRestricted, params.message); + } + if (this.context.strict && params.stricted) { + this.tolerateUnexpectedToken(params.stricted, params.message); + } + this.context.strict = previousStrict; + this.context.allowStrictDirective = previousAllowStrictDirective; + return body; + }; + Parser.prototype.parsePropertyMethodFunction = function () { + var isGenerator = false; + var node = this.createNode(); + var previousAllowYield = this.context.allowYield; + this.context.allowYield = true; + var params = this.parseFormalParameters(); + var method = this.parsePropertyMethod(params); + this.context.allowYield = previousAllowYield; + return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator)); + }; + Parser.prototype.parsePropertyMethodAsyncFunction = function () { + var node = this.createNode(); + var previousAllowYield = this.context.allowYield; + var previousAwait = this.context.await; + this.context.allowYield = false; + this.context.await = true; + var params = this.parseFormalParameters(); + var method = this.parsePropertyMethod(params); + this.context.allowYield = previousAllowYield; + this.context.await = previousAwait; + return this.finalize(node, new Node.AsyncFunctionExpression(null, params.params, method)); + }; + Parser.prototype.parseObjectPropertyKey = function () { + var node = this.createNode(); + var token = this.nextToken(); + var key; + switch (token.type) { + case 8 /* StringLiteral */: + case 6 /* NumericLiteral */: + if (this.context.strict && token.octal) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictOctalLiteral); + } + var raw = this.getTokenRaw(token); + key = this.finalize(node, new Node.Literal(token.value, raw)); + break; + case 3 /* Identifier */: + case 1 /* BooleanLiteral */: + case 5 /* NullLiteral */: + case 4 /* Keyword */: + key = this.finalize(node, new Node.Identifier(token.value)); + break; + case 7 /* Punctuator */: + if (token.value === '[') { + key = this.isolateCoverGrammar(this.parseAssignmentExpression); + this.expect(']'); + } + else { + key = this.throwUnexpectedToken(token); + } + break; + default: + key = this.throwUnexpectedToken(token); + } + return key; + }; + Parser.prototype.isPropertyKey = function (key, value) { + return (key.type === syntax_1.Syntax.Identifier && key.name === value) || + (key.type === syntax_1.Syntax.Literal && key.value === value); + }; + Parser.prototype.parseObjectProperty = function (hasProto) { + var node = this.createNode(); + var token = this.lookahead; + var kind; + var key = null; + var value = null; + var computed = false; + var method = false; + var shorthand = false; + var isAsync = false; + if (token.type === 3 /* Identifier */) { + var id = token.value; + this.nextToken(); + computed = this.match('['); + isAsync = !this.hasLineTerminator && (id === 'async') && + !this.match(':') && !this.match('(') && !this.match('*') && !this.match(','); + key = isAsync ? this.parseObjectPropertyKey() : this.finalize(node, new Node.Identifier(id)); + } + else if (this.match('*')) { + this.nextToken(); + } + else { + computed = this.match('['); + key = this.parseObjectPropertyKey(); + } + var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead); + if (token.type === 3 /* Identifier */ && !isAsync && token.value === 'get' && lookaheadPropertyKey) { + kind = 'get'; + computed = this.match('['); + key = this.parseObjectPropertyKey(); + this.context.allowYield = false; + value = this.parseGetterMethod(); + } + else if (token.type === 3 /* Identifier */ && !isAsync && token.value === 'set' && lookaheadPropertyKey) { + kind = 'set'; + computed = this.match('['); + key = this.parseObjectPropertyKey(); + value = this.parseSetterMethod(); + } + else if (token.type === 7 /* Punctuator */ && token.value === '*' && lookaheadPropertyKey) { + kind = 'init'; + computed = this.match('['); + key = this.parseObjectPropertyKey(); + value = this.parseGeneratorMethod(); + method = true; + } + else { + if (!key) { + this.throwUnexpectedToken(this.lookahead); + } + kind = 'init'; + if (this.match(':') && !isAsync) { + if (!computed && this.isPropertyKey(key, '__proto__')) { + if (hasProto.value) { + this.tolerateError(messages_1.Messages.DuplicateProtoProperty); + } + hasProto.value = true; + } + this.nextToken(); + value = this.inheritCoverGrammar(this.parseAssignmentExpression); + } + else if (this.match('(')) { + value = isAsync ? this.parsePropertyMethodAsyncFunction() : this.parsePropertyMethodFunction(); + method = true; + } + else if (token.type === 3 /* Identifier */) { + var id = this.finalize(node, new Node.Identifier(token.value)); + if (this.match('=')) { + this.context.firstCoverInitializedNameError = this.lookahead; + this.nextToken(); + shorthand = true; + var init = this.isolateCoverGrammar(this.parseAssignmentExpression); + value = this.finalize(node, new Node.AssignmentPattern(id, init)); + } + else { + shorthand = true; + value = id; + } + } + else { + this.throwUnexpectedToken(this.nextToken()); + } + } + return this.finalize(node, new Node.Property(kind, key, computed, value, method, shorthand)); + }; + Parser.prototype.parseObjectInitializer = function () { + var node = this.createNode(); + this.expect('{'); + var properties = []; + var hasProto = { value: false }; + while (!this.match('}')) { + properties.push(this.parseObjectProperty(hasProto)); + if (!this.match('}')) { + this.expectCommaSeparator(); + } + } + this.expect('}'); + return this.finalize(node, new Node.ObjectExpression(properties)); + }; + // https://tc39.github.io/ecma262/#sec-template-literals + Parser.prototype.parseTemplateHead = function () { + assert_1.assert(this.lookahead.head, 'Template literal must start with a template head'); + var node = this.createNode(); + var token = this.nextToken(); + var raw = token.value; + var cooked = token.cooked; + return this.finalize(node, new Node.TemplateElement({ raw: raw, cooked: cooked }, token.tail)); + }; + Parser.prototype.parseTemplateElement = function () { + if (this.lookahead.type !== 10 /* Template */) { + this.throwUnexpectedToken(); + } + var node = this.createNode(); + var token = this.nextToken(); + var raw = token.value; + var cooked = token.cooked; + return this.finalize(node, new Node.TemplateElement({ raw: raw, cooked: cooked }, token.tail)); + }; + Parser.prototype.parseTemplateLiteral = function () { + var node = this.createNode(); + var expressions = []; + var quasis = []; + var quasi = this.parseTemplateHead(); + quasis.push(quasi); + while (!quasi.tail) { + expressions.push(this.parseExpression()); + quasi = this.parseTemplateElement(); + quasis.push(quasi); + } + return this.finalize(node, new Node.TemplateLiteral(quasis, expressions)); + }; + // https://tc39.github.io/ecma262/#sec-grouping-operator + Parser.prototype.reinterpretExpressionAsPattern = function (expr) { + switch (expr.type) { + case syntax_1.Syntax.Identifier: + case syntax_1.Syntax.MemberExpression: + case syntax_1.Syntax.RestElement: + case syntax_1.Syntax.AssignmentPattern: + break; + case syntax_1.Syntax.SpreadElement: + expr.type = syntax_1.Syntax.RestElement; + this.reinterpretExpressionAsPattern(expr.argument); + break; + case syntax_1.Syntax.ArrayExpression: + expr.type = syntax_1.Syntax.ArrayPattern; + for (var i = 0; i < expr.elements.length; i++) { + if (expr.elements[i] !== null) { + this.reinterpretExpressionAsPattern(expr.elements[i]); + } + } + break; + case syntax_1.Syntax.ObjectExpression: + expr.type = syntax_1.Syntax.ObjectPattern; + for (var i = 0; i < expr.properties.length; i++) { + this.reinterpretExpressionAsPattern(expr.properties[i].value); + } + break; + case syntax_1.Syntax.AssignmentExpression: + expr.type = syntax_1.Syntax.AssignmentPattern; + delete expr.operator; + this.reinterpretExpressionAsPattern(expr.left); + break; + default: + // Allow other node type for tolerant parsing. + break; + } + }; + Parser.prototype.parseGroupExpression = function () { + var expr; + this.expect('('); + if (this.match(')')) { + this.nextToken(); + if (!this.match('=>')) { + this.expect('=>'); + } + expr = { + type: ArrowParameterPlaceHolder, + params: [], + async: false + }; + } + else { + var startToken = this.lookahead; + var params = []; + if (this.match('...')) { + expr = this.parseRestElement(params); + this.expect(')'); + if (!this.match('=>')) { + this.expect('=>'); + } + expr = { + type: ArrowParameterPlaceHolder, + params: [expr], + async: false + }; + } + else { + var arrow = false; + this.context.isBindingElement = true; + expr = this.inheritCoverGrammar(this.parseAssignmentExpression); + if (this.match(',')) { + var expressions = []; + this.context.isAssignmentTarget = false; + expressions.push(expr); + while (this.lookahead.type !== 2 /* EOF */) { + if (!this.match(',')) { + break; + } + this.nextToken(); + if (this.match(')')) { + this.nextToken(); + for (var i = 0; i < expressions.length; i++) { + this.reinterpretExpressionAsPattern(expressions[i]); + } + arrow = true; + expr = { + type: ArrowParameterPlaceHolder, + params: expressions, + async: false + }; + } + else if (this.match('...')) { + if (!this.context.isBindingElement) { + this.throwUnexpectedToken(this.lookahead); + } + expressions.push(this.parseRestElement(params)); + this.expect(')'); + if (!this.match('=>')) { + this.expect('=>'); + } + this.context.isBindingElement = false; + for (var i = 0; i < expressions.length; i++) { + this.reinterpretExpressionAsPattern(expressions[i]); + } + arrow = true; + expr = { + type: ArrowParameterPlaceHolder, + params: expressions, + async: false + }; + } + else { + expressions.push(this.inheritCoverGrammar(this.parseAssignmentExpression)); + } + if (arrow) { + break; + } + } + if (!arrow) { + expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions)); + } + } + if (!arrow) { + this.expect(')'); + if (this.match('=>')) { + if (expr.type === syntax_1.Syntax.Identifier && expr.name === 'yield') { + arrow = true; + expr = { + type: ArrowParameterPlaceHolder, + params: [expr], + async: false + }; + } + if (!arrow) { + if (!this.context.isBindingElement) { + this.throwUnexpectedToken(this.lookahead); + } + if (expr.type === syntax_1.Syntax.SequenceExpression) { + for (var i = 0; i < expr.expressions.length; i++) { + this.reinterpretExpressionAsPattern(expr.expressions[i]); + } + } + else { + this.reinterpretExpressionAsPattern(expr); + } + var parameters = (expr.type === syntax_1.Syntax.SequenceExpression ? expr.expressions : [expr]); + expr = { + type: ArrowParameterPlaceHolder, + params: parameters, + async: false + }; + } + } + this.context.isBindingElement = false; + } + } + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-left-hand-side-expressions + Parser.prototype.parseArguments = function () { + this.expect('('); + var args = []; + if (!this.match(')')) { + while (true) { + var expr = this.match('...') ? this.parseSpreadElement() : + this.isolateCoverGrammar(this.parseAssignmentExpression); + args.push(expr); + if (this.match(')')) { + break; + } + this.expectCommaSeparator(); + if (this.match(')')) { + break; + } + } + } + this.expect(')'); + return args; + }; + Parser.prototype.isIdentifierName = function (token) { + return token.type === 3 /* Identifier */ || + token.type === 4 /* Keyword */ || + token.type === 1 /* BooleanLiteral */ || + token.type === 5 /* NullLiteral */; + }; + Parser.prototype.parseIdentifierName = function () { + var node = this.createNode(); + var token = this.nextToken(); + if (!this.isIdentifierName(token)) { + this.throwUnexpectedToken(token); + } + return this.finalize(node, new Node.Identifier(token.value)); + }; + Parser.prototype.parseNewExpression = function () { + var node = this.createNode(); + var id = this.parseIdentifierName(); + assert_1.assert(id.name === 'new', 'New expression must start with `new`'); + var expr; + if (this.match('.')) { + this.nextToken(); + if (this.lookahead.type === 3 /* Identifier */ && this.context.inFunctionBody && this.lookahead.value === 'target') { + var property = this.parseIdentifierName(); + expr = new Node.MetaProperty(id, property); + } + else { + this.throwUnexpectedToken(this.lookahead); + } + } + else { + var callee = this.isolateCoverGrammar(this.parseLeftHandSideExpression); + var args = this.match('(') ? this.parseArguments() : []; + expr = new Node.NewExpression(callee, args); + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + } + return this.finalize(node, expr); + }; + Parser.prototype.parseAsyncArgument = function () { + var arg = this.parseAssignmentExpression(); + this.context.firstCoverInitializedNameError = null; + return arg; + }; + Parser.prototype.parseAsyncArguments = function () { + this.expect('('); + var args = []; + if (!this.match(')')) { + while (true) { + var expr = this.match('...') ? this.parseSpreadElement() : + this.isolateCoverGrammar(this.parseAsyncArgument); + args.push(expr); + if (this.match(')')) { + break; + } + this.expectCommaSeparator(); + if (this.match(')')) { + break; + } + } + } + this.expect(')'); + return args; + }; + Parser.prototype.parseLeftHandSideExpressionAllowCall = function () { + var startToken = this.lookahead; + var maybeAsync = this.matchContextualKeyword('async'); + var previousAllowIn = this.context.allowIn; + this.context.allowIn = true; + var expr; + if (this.matchKeyword('super') && this.context.inFunctionBody) { + expr = this.createNode(); + this.nextToken(); + expr = this.finalize(expr, new Node.Super()); + if (!this.match('(') && !this.match('.') && !this.match('[')) { + this.throwUnexpectedToken(this.lookahead); + } + } + else { + expr = this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression); + } + while (true) { + if (this.match('.')) { + this.context.isBindingElement = false; + this.context.isAssignmentTarget = true; + this.expect('.'); + var property = this.parseIdentifierName(); + expr = this.finalize(this.startNode(startToken), new Node.StaticMemberExpression(expr, property)); + } + else if (this.match('(')) { + var asyncArrow = maybeAsync && (startToken.lineNumber === this.lookahead.lineNumber); + this.context.isBindingElement = false; + this.context.isAssignmentTarget = false; + var args = asyncArrow ? this.parseAsyncArguments() : this.parseArguments(); + expr = this.finalize(this.startNode(startToken), new Node.CallExpression(expr, args)); + if (asyncArrow && this.match('=>')) { + for (var i = 0; i < args.length; ++i) { + this.reinterpretExpressionAsPattern(args[i]); + } + expr = { + type: ArrowParameterPlaceHolder, + params: args, + async: true + }; + } + } + else if (this.match('[')) { + this.context.isBindingElement = false; + this.context.isAssignmentTarget = true; + this.expect('['); + var property = this.isolateCoverGrammar(this.parseExpression); + this.expect(']'); + expr = this.finalize(this.startNode(startToken), new Node.ComputedMemberExpression(expr, property)); + } + else if (this.lookahead.type === 10 /* Template */ && this.lookahead.head) { + var quasi = this.parseTemplateLiteral(); + expr = this.finalize(this.startNode(startToken), new Node.TaggedTemplateExpression(expr, quasi)); + } + else { + break; + } + } + this.context.allowIn = previousAllowIn; + return expr; + }; + Parser.prototype.parseSuper = function () { + var node = this.createNode(); + this.expectKeyword('super'); + if (!this.match('[') && !this.match('.')) { + this.throwUnexpectedToken(this.lookahead); + } + return this.finalize(node, new Node.Super()); + }; + Parser.prototype.parseLeftHandSideExpression = function () { + assert_1.assert(this.context.allowIn, 'callee of new expression always allow in keyword.'); + var node = this.startNode(this.lookahead); + var expr = (this.matchKeyword('super') && this.context.inFunctionBody) ? this.parseSuper() : + this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression); + while (true) { + if (this.match('[')) { + this.context.isBindingElement = false; + this.context.isAssignmentTarget = true; + this.expect('['); + var property = this.isolateCoverGrammar(this.parseExpression); + this.expect(']'); + expr = this.finalize(node, new Node.ComputedMemberExpression(expr, property)); + } + else if (this.match('.')) { + this.context.isBindingElement = false; + this.context.isAssignmentTarget = true; + this.expect('.'); + var property = this.parseIdentifierName(); + expr = this.finalize(node, new Node.StaticMemberExpression(expr, property)); + } + else if (this.lookahead.type === 10 /* Template */ && this.lookahead.head) { + var quasi = this.parseTemplateLiteral(); + expr = this.finalize(node, new Node.TaggedTemplateExpression(expr, quasi)); + } + else { + break; + } + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-update-expressions + Parser.prototype.parseUpdateExpression = function () { + var expr; + var startToken = this.lookahead; + if (this.match('++') || this.match('--')) { + var node = this.startNode(startToken); + var token = this.nextToken(); + expr = this.inheritCoverGrammar(this.parseUnaryExpression); + if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) { + this.tolerateError(messages_1.Messages.StrictLHSPrefix); + } + if (!this.context.isAssignmentTarget) { + this.tolerateError(messages_1.Messages.InvalidLHSInAssignment); + } + var prefix = true; + expr = this.finalize(node, new Node.UpdateExpression(token.value, expr, prefix)); + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + } + else { + expr = this.inheritCoverGrammar(this.parseLeftHandSideExpressionAllowCall); + if (!this.hasLineTerminator && this.lookahead.type === 7 /* Punctuator */) { + if (this.match('++') || this.match('--')) { + if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) { + this.tolerateError(messages_1.Messages.StrictLHSPostfix); + } + if (!this.context.isAssignmentTarget) { + this.tolerateError(messages_1.Messages.InvalidLHSInAssignment); + } + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + var operator = this.nextToken().value; + var prefix = false; + expr = this.finalize(this.startNode(startToken), new Node.UpdateExpression(operator, expr, prefix)); + } + } + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-unary-operators + Parser.prototype.parseAwaitExpression = function () { + var node = this.createNode(); + this.nextToken(); + var argument = this.parseUnaryExpression(); + return this.finalize(node, new Node.AwaitExpression(argument)); + }; + Parser.prototype.parseUnaryExpression = function () { + var expr; + if (this.match('+') || this.match('-') || this.match('~') || this.match('!') || + this.matchKeyword('delete') || this.matchKeyword('void') || this.matchKeyword('typeof')) { + var node = this.startNode(this.lookahead); + var token = this.nextToken(); + expr = this.inheritCoverGrammar(this.parseUnaryExpression); + expr = this.finalize(node, new Node.UnaryExpression(token.value, expr)); + if (this.context.strict && expr.operator === 'delete' && expr.argument.type === syntax_1.Syntax.Identifier) { + this.tolerateError(messages_1.Messages.StrictDelete); + } + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + } + else if (this.context.await && this.matchContextualKeyword('await')) { + expr = this.parseAwaitExpression(); + } + else { + expr = this.parseUpdateExpression(); + } + return expr; + }; + Parser.prototype.parseExponentiationExpression = function () { + var startToken = this.lookahead; + var expr = this.inheritCoverGrammar(this.parseUnaryExpression); + if (expr.type !== syntax_1.Syntax.UnaryExpression && this.match('**')) { + this.nextToken(); + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + var left = expr; + var right = this.isolateCoverGrammar(this.parseExponentiationExpression); + expr = this.finalize(this.startNode(startToken), new Node.BinaryExpression('**', left, right)); + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-exp-operator + // https://tc39.github.io/ecma262/#sec-multiplicative-operators + // https://tc39.github.io/ecma262/#sec-additive-operators + // https://tc39.github.io/ecma262/#sec-bitwise-shift-operators + // https://tc39.github.io/ecma262/#sec-relational-operators + // https://tc39.github.io/ecma262/#sec-equality-operators + // https://tc39.github.io/ecma262/#sec-binary-bitwise-operators + // https://tc39.github.io/ecma262/#sec-binary-logical-operators + Parser.prototype.binaryPrecedence = function (token) { + var op = token.value; + var precedence; + if (token.type === 7 /* Punctuator */) { + precedence = this.operatorPrecedence[op] || 0; + } + else if (token.type === 4 /* Keyword */) { + precedence = (op === 'instanceof' || (this.context.allowIn && op === 'in')) ? 7 : 0; + } + else { + precedence = 0; + } + return precedence; + }; + Parser.prototype.parseBinaryExpression = function () { + var startToken = this.lookahead; + var expr = this.inheritCoverGrammar(this.parseExponentiationExpression); + var token = this.lookahead; + var prec = this.binaryPrecedence(token); + if (prec > 0) { + this.nextToken(); + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + var markers = [startToken, this.lookahead]; + var left = expr; + var right = this.isolateCoverGrammar(this.parseExponentiationExpression); + var stack = [left, token.value, right]; + var precedences = [prec]; + while (true) { + prec = this.binaryPrecedence(this.lookahead); + if (prec <= 0) { + break; + } + // Reduce: make a binary expression from the three topmost entries. + while ((stack.length > 2) && (prec <= precedences[precedences.length - 1])) { + right = stack.pop(); + var operator = stack.pop(); + precedences.pop(); + left = stack.pop(); + markers.pop(); + var node = this.startNode(markers[markers.length - 1]); + stack.push(this.finalize(node, new Node.BinaryExpression(operator, left, right))); + } + // Shift. + stack.push(this.nextToken().value); + precedences.push(prec); + markers.push(this.lookahead); + stack.push(this.isolateCoverGrammar(this.parseExponentiationExpression)); + } + // Final reduce to clean-up the stack. + var i = stack.length - 1; + expr = stack[i]; + var lastMarker = markers.pop(); + while (i > 1) { + var marker = markers.pop(); + var lastLineStart = lastMarker && lastMarker.lineStart; + var node = this.startNode(marker, lastLineStart); + var operator = stack[i - 1]; + expr = this.finalize(node, new Node.BinaryExpression(operator, stack[i - 2], expr)); + i -= 2; + lastMarker = marker; + } + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-conditional-operator + Parser.prototype.parseConditionalExpression = function () { + var startToken = this.lookahead; + var expr = this.inheritCoverGrammar(this.parseBinaryExpression); + if (this.match('?')) { + this.nextToken(); + var previousAllowIn = this.context.allowIn; + this.context.allowIn = true; + var consequent = this.isolateCoverGrammar(this.parseAssignmentExpression); + this.context.allowIn = previousAllowIn; + this.expect(':'); + var alternate = this.isolateCoverGrammar(this.parseAssignmentExpression); + expr = this.finalize(this.startNode(startToken), new Node.ConditionalExpression(expr, consequent, alternate)); + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-assignment-operators + Parser.prototype.checkPatternParam = function (options, param) { + switch (param.type) { + case syntax_1.Syntax.Identifier: + this.validateParam(options, param, param.name); + break; + case syntax_1.Syntax.RestElement: + this.checkPatternParam(options, param.argument); + break; + case syntax_1.Syntax.AssignmentPattern: + this.checkPatternParam(options, param.left); + break; + case syntax_1.Syntax.ArrayPattern: + for (var i = 0; i < param.elements.length; i++) { + if (param.elements[i] !== null) { + this.checkPatternParam(options, param.elements[i]); + } + } + break; + case syntax_1.Syntax.ObjectPattern: + for (var i = 0; i < param.properties.length; i++) { + this.checkPatternParam(options, param.properties[i].value); + } + break; + default: + break; + } + options.simple = options.simple && (param instanceof Node.Identifier); + }; + Parser.prototype.reinterpretAsCoverFormalsList = function (expr) { + var params = [expr]; + var options; + var asyncArrow = false; + switch (expr.type) { + case syntax_1.Syntax.Identifier: + break; + case ArrowParameterPlaceHolder: + params = expr.params; + asyncArrow = expr.async; + break; + default: + return null; + } + options = { + simple: true, + paramSet: {} + }; + for (var i = 0; i < params.length; ++i) { + var param = params[i]; + if (param.type === syntax_1.Syntax.AssignmentPattern) { + if (param.right.type === syntax_1.Syntax.YieldExpression) { + if (param.right.argument) { + this.throwUnexpectedToken(this.lookahead); + } + param.right.type = syntax_1.Syntax.Identifier; + param.right.name = 'yield'; + delete param.right.argument; + delete param.right.delegate; + } + } + else if (asyncArrow && param.type === syntax_1.Syntax.Identifier && param.name === 'await') { + this.throwUnexpectedToken(this.lookahead); + } + this.checkPatternParam(options, param); + params[i] = param; + } + if (this.context.strict || !this.context.allowYield) { + for (var i = 0; i < params.length; ++i) { + var param = params[i]; + if (param.type === syntax_1.Syntax.YieldExpression) { + this.throwUnexpectedToken(this.lookahead); + } + } + } + if (options.message === messages_1.Messages.StrictParamDupe) { + var token = this.context.strict ? options.stricted : options.firstRestricted; + this.throwUnexpectedToken(token, options.message); + } + return { + simple: options.simple, + params: params, + stricted: options.stricted, + firstRestricted: options.firstRestricted, + message: options.message + }; + }; + Parser.prototype.parseAssignmentExpression = function () { + var expr; + if (!this.context.allowYield && this.matchKeyword('yield')) { + expr = this.parseYieldExpression(); + } + else { + var startToken = this.lookahead; + var token = startToken; + expr = this.parseConditionalExpression(); + if (token.type === 3 /* Identifier */ && (token.lineNumber === this.lookahead.lineNumber) && token.value === 'async') { + if (this.lookahead.type === 3 /* Identifier */ || this.matchKeyword('yield')) { + var arg = this.parsePrimaryExpression(); + this.reinterpretExpressionAsPattern(arg); + expr = { + type: ArrowParameterPlaceHolder, + params: [arg], + async: true + }; + } + } + if (expr.type === ArrowParameterPlaceHolder || this.match('=>')) { + // https://tc39.github.io/ecma262/#sec-arrow-function-definitions + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + var isAsync = expr.async; + var list = this.reinterpretAsCoverFormalsList(expr); + if (list) { + if (this.hasLineTerminator) { + this.tolerateUnexpectedToken(this.lookahead); + } + this.context.firstCoverInitializedNameError = null; + var previousStrict = this.context.strict; + var previousAllowStrictDirective = this.context.allowStrictDirective; + this.context.allowStrictDirective = list.simple; + var previousAllowYield = this.context.allowYield; + var previousAwait = this.context.await; + this.context.allowYield = true; + this.context.await = isAsync; + var node = this.startNode(startToken); + this.expect('=>'); + var body = void 0; + if (this.match('{')) { + var previousAllowIn = this.context.allowIn; + this.context.allowIn = true; + body = this.parseFunctionSourceElements(); + this.context.allowIn = previousAllowIn; + } + else { + body = this.isolateCoverGrammar(this.parseAssignmentExpression); + } + var expression = body.type !== syntax_1.Syntax.BlockStatement; + if (this.context.strict && list.firstRestricted) { + this.throwUnexpectedToken(list.firstRestricted, list.message); + } + if (this.context.strict && list.stricted) { + this.tolerateUnexpectedToken(list.stricted, list.message); + } + expr = isAsync ? this.finalize(node, new Node.AsyncArrowFunctionExpression(list.params, body, expression)) : + this.finalize(node, new Node.ArrowFunctionExpression(list.params, body, expression)); + this.context.strict = previousStrict; + this.context.allowStrictDirective = previousAllowStrictDirective; + this.context.allowYield = previousAllowYield; + this.context.await = previousAwait; + } + } + else { + if (this.matchAssign()) { + if (!this.context.isAssignmentTarget) { + this.tolerateError(messages_1.Messages.InvalidLHSInAssignment); + } + if (this.context.strict && expr.type === syntax_1.Syntax.Identifier) { + var id = expr; + if (this.scanner.isRestrictedWord(id.name)) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictLHSAssignment); + } + if (this.scanner.isStrictModeReservedWord(id.name)) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord); + } + } + if (!this.match('=')) { + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + } + else { + this.reinterpretExpressionAsPattern(expr); + } + token = this.nextToken(); + var operator = token.value; + var right = this.isolateCoverGrammar(this.parseAssignmentExpression); + expr = this.finalize(this.startNode(startToken), new Node.AssignmentExpression(operator, expr, right)); + this.context.firstCoverInitializedNameError = null; + } + } + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-comma-operator + Parser.prototype.parseExpression = function () { + var startToken = this.lookahead; + var expr = this.isolateCoverGrammar(this.parseAssignmentExpression); + if (this.match(',')) { + var expressions = []; + expressions.push(expr); + while (this.lookahead.type !== 2 /* EOF */) { + if (!this.match(',')) { + break; + } + this.nextToken(); + expressions.push(this.isolateCoverGrammar(this.parseAssignmentExpression)); + } + expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions)); + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-block + Parser.prototype.parseStatementListItem = function () { + var statement; + this.context.isAssignmentTarget = true; + this.context.isBindingElement = true; + if (this.lookahead.type === 4 /* Keyword */) { + switch (this.lookahead.value) { + case 'export': + if (!this.context.isModule) { + this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalExportDeclaration); + } + statement = this.parseExportDeclaration(); + break; + case 'import': + if (!this.context.isModule) { + this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalImportDeclaration); + } + statement = this.parseImportDeclaration(); + break; + case 'const': + statement = this.parseLexicalDeclaration({ inFor: false }); + break; + case 'function': + statement = this.parseFunctionDeclaration(); + break; + case 'class': + statement = this.parseClassDeclaration(); + break; + case 'let': + statement = this.isLexicalDeclaration() ? this.parseLexicalDeclaration({ inFor: false }) : this.parseStatement(); + break; + default: + statement = this.parseStatement(); + break; + } + } + else { + statement = this.parseStatement(); + } + return statement; + }; + Parser.prototype.parseBlock = function () { + var node = this.createNode(); + this.expect('{'); + var block = []; + while (true) { + if (this.match('}')) { + break; + } + block.push(this.parseStatementListItem()); + } + this.expect('}'); + return this.finalize(node, new Node.BlockStatement(block)); + }; + // https://tc39.github.io/ecma262/#sec-let-and-const-declarations + Parser.prototype.parseLexicalBinding = function (kind, options) { + var node = this.createNode(); + var params = []; + var id = this.parsePattern(params, kind); + if (this.context.strict && id.type === syntax_1.Syntax.Identifier) { + if (this.scanner.isRestrictedWord(id.name)) { + this.tolerateError(messages_1.Messages.StrictVarName); + } + } + var init = null; + if (kind === 'const') { + if (!this.matchKeyword('in') && !this.matchContextualKeyword('of')) { + if (this.match('=')) { + this.nextToken(); + init = this.isolateCoverGrammar(this.parseAssignmentExpression); + } + else { + this.throwError(messages_1.Messages.DeclarationMissingInitializer, 'const'); + } + } + } + else if ((!options.inFor && id.type !== syntax_1.Syntax.Identifier) || this.match('=')) { + this.expect('='); + init = this.isolateCoverGrammar(this.parseAssignmentExpression); + } + return this.finalize(node, new Node.VariableDeclarator(id, init)); + }; + Parser.prototype.parseBindingList = function (kind, options) { + var list = [this.parseLexicalBinding(kind, options)]; + while (this.match(',')) { + this.nextToken(); + list.push(this.parseLexicalBinding(kind, options)); + } + return list; + }; + Parser.prototype.isLexicalDeclaration = function () { + var state = this.scanner.saveState(); + this.scanner.scanComments(); + var next = this.scanner.lex(); + this.scanner.restoreState(state); + return (next.type === 3 /* Identifier */) || + (next.type === 7 /* Punctuator */ && next.value === '[') || + (next.type === 7 /* Punctuator */ && next.value === '{') || + (next.type === 4 /* Keyword */ && next.value === 'let') || + (next.type === 4 /* Keyword */ && next.value === 'yield'); + }; + Parser.prototype.parseLexicalDeclaration = function (options) { + var node = this.createNode(); + var kind = this.nextToken().value; + assert_1.assert(kind === 'let' || kind === 'const', 'Lexical declaration must be either let or const'); + var declarations = this.parseBindingList(kind, options); + this.consumeSemicolon(); + return this.finalize(node, new Node.VariableDeclaration(declarations, kind)); + }; + // https://tc39.github.io/ecma262/#sec-destructuring-binding-patterns + Parser.prototype.parseBindingRestElement = function (params, kind) { + var node = this.createNode(); + this.expect('...'); + var arg = this.parsePattern(params, kind); + return this.finalize(node, new Node.RestElement(arg)); + }; + Parser.prototype.parseArrayPattern = function (params, kind) { + var node = this.createNode(); + this.expect('['); + var elements = []; + while (!this.match(']')) { + if (this.match(',')) { + this.nextToken(); + elements.push(null); + } + else { + if (this.match('...')) { + elements.push(this.parseBindingRestElement(params, kind)); + break; + } + else { + elements.push(this.parsePatternWithDefault(params, kind)); + } + if (!this.match(']')) { + this.expect(','); + } + } + } + this.expect(']'); + return this.finalize(node, new Node.ArrayPattern(elements)); + }; + Parser.prototype.parsePropertyPattern = function (params, kind) { + var node = this.createNode(); + var computed = false; + var shorthand = false; + var method = false; + var key; + var value; + if (this.lookahead.type === 3 /* Identifier */) { + var keyToken = this.lookahead; + key = this.parseVariableIdentifier(); + var init = this.finalize(node, new Node.Identifier(keyToken.value)); + if (this.match('=')) { + params.push(keyToken); + shorthand = true; + this.nextToken(); + var expr = this.parseAssignmentExpression(); + value = this.finalize(this.startNode(keyToken), new Node.AssignmentPattern(init, expr)); + } + else if (!this.match(':')) { + params.push(keyToken); + shorthand = true; + value = init; + } + else { + this.expect(':'); + value = this.parsePatternWithDefault(params, kind); + } + } + else { + computed = this.match('['); + key = this.parseObjectPropertyKey(); + this.expect(':'); + value = this.parsePatternWithDefault(params, kind); + } + return this.finalize(node, new Node.Property('init', key, computed, value, method, shorthand)); + }; + Parser.prototype.parseObjectPattern = function (params, kind) { + var node = this.createNode(); + var properties = []; + this.expect('{'); + while (!this.match('}')) { + properties.push(this.parsePropertyPattern(params, kind)); + if (!this.match('}')) { + this.expect(','); + } + } + this.expect('}'); + return this.finalize(node, new Node.ObjectPattern(properties)); + }; + Parser.prototype.parsePattern = function (params, kind) { + var pattern; + if (this.match('[')) { + pattern = this.parseArrayPattern(params, kind); + } + else if (this.match('{')) { + pattern = this.parseObjectPattern(params, kind); + } + else { + if (this.matchKeyword('let') && (kind === 'const' || kind === 'let')) { + this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.LetInLexicalBinding); + } + params.push(this.lookahead); + pattern = this.parseVariableIdentifier(kind); + } + return pattern; + }; + Parser.prototype.parsePatternWithDefault = function (params, kind) { + var startToken = this.lookahead; + var pattern = this.parsePattern(params, kind); + if (this.match('=')) { + this.nextToken(); + var previousAllowYield = this.context.allowYield; + this.context.allowYield = true; + var right = this.isolateCoverGrammar(this.parseAssignmentExpression); + this.context.allowYield = previousAllowYield; + pattern = this.finalize(this.startNode(startToken), new Node.AssignmentPattern(pattern, right)); + } + return pattern; + }; + // https://tc39.github.io/ecma262/#sec-variable-statement + Parser.prototype.parseVariableIdentifier = function (kind) { + var node = this.createNode(); + var token = this.nextToken(); + if (token.type === 4 /* Keyword */ && token.value === 'yield') { + if (this.context.strict) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord); + } + else if (!this.context.allowYield) { + this.throwUnexpectedToken(token); + } + } + else if (token.type !== 3 /* Identifier */) { + if (this.context.strict && token.type === 4 /* Keyword */ && this.scanner.isStrictModeReservedWord(token.value)) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord); + } + else { + if (this.context.strict || token.value !== 'let' || kind !== 'var') { + this.throwUnexpectedToken(token); + } + } + } + else if ((this.context.isModule || this.context.await) && token.type === 3 /* Identifier */ && token.value === 'await') { + this.tolerateUnexpectedToken(token); + } + return this.finalize(node, new Node.Identifier(token.value)); + }; + Parser.prototype.parseVariableDeclaration = function (options) { + var node = this.createNode(); + var params = []; + var id = this.parsePattern(params, 'var'); + if (this.context.strict && id.type === syntax_1.Syntax.Identifier) { + if (this.scanner.isRestrictedWord(id.name)) { + this.tolerateError(messages_1.Messages.StrictVarName); + } + } + var init = null; + if (this.match('=')) { + this.nextToken(); + init = this.isolateCoverGrammar(this.parseAssignmentExpression); + } + else if (id.type !== syntax_1.Syntax.Identifier && !options.inFor) { + this.expect('='); + } + return this.finalize(node, new Node.VariableDeclarator(id, init)); + }; + Parser.prototype.parseVariableDeclarationList = function (options) { + var opt = { inFor: options.inFor }; + var list = []; + list.push(this.parseVariableDeclaration(opt)); + while (this.match(',')) { + this.nextToken(); + list.push(this.parseVariableDeclaration(opt)); + } + return list; + }; + Parser.prototype.parseVariableStatement = function () { + var node = this.createNode(); + this.expectKeyword('var'); + var declarations = this.parseVariableDeclarationList({ inFor: false }); + this.consumeSemicolon(); + return this.finalize(node, new Node.VariableDeclaration(declarations, 'var')); + }; + // https://tc39.github.io/ecma262/#sec-empty-statement + Parser.prototype.parseEmptyStatement = function () { + var node = this.createNode(); + this.expect(';'); + return this.finalize(node, new Node.EmptyStatement()); + }; + // https://tc39.github.io/ecma262/#sec-expression-statement + Parser.prototype.parseExpressionStatement = function () { + var node = this.createNode(); + var expr = this.parseExpression(); + this.consumeSemicolon(); + return this.finalize(node, new Node.ExpressionStatement(expr)); + }; + // https://tc39.github.io/ecma262/#sec-if-statement + Parser.prototype.parseIfClause = function () { + if (this.context.strict && this.matchKeyword('function')) { + this.tolerateError(messages_1.Messages.StrictFunction); + } + return this.parseStatement(); + }; + Parser.prototype.parseIfStatement = function () { + var node = this.createNode(); + var consequent; + var alternate = null; + this.expectKeyword('if'); + this.expect('('); + var test = this.parseExpression(); + if (!this.match(')') && this.config.tolerant) { + this.tolerateUnexpectedToken(this.nextToken()); + consequent = this.finalize(this.createNode(), new Node.EmptyStatement()); + } + else { + this.expect(')'); + consequent = this.parseIfClause(); + if (this.matchKeyword('else')) { + this.nextToken(); + alternate = this.parseIfClause(); + } + } + return this.finalize(node, new Node.IfStatement(test, consequent, alternate)); + }; + // https://tc39.github.io/ecma262/#sec-do-while-statement + Parser.prototype.parseDoWhileStatement = function () { + var node = this.createNode(); + this.expectKeyword('do'); + var previousInIteration = this.context.inIteration; + this.context.inIteration = true; + var body = this.parseStatement(); + this.context.inIteration = previousInIteration; + this.expectKeyword('while'); + this.expect('('); + var test = this.parseExpression(); + if (!this.match(')') && this.config.tolerant) { + this.tolerateUnexpectedToken(this.nextToken()); + } + else { + this.expect(')'); + if (this.match(';')) { + this.nextToken(); + } + } + return this.finalize(node, new Node.DoWhileStatement(body, test)); + }; + // https://tc39.github.io/ecma262/#sec-while-statement + Parser.prototype.parseWhileStatement = function () { + var node = this.createNode(); + var body; + this.expectKeyword('while'); + this.expect('('); + var test = this.parseExpression(); + if (!this.match(')') && this.config.tolerant) { + this.tolerateUnexpectedToken(this.nextToken()); + body = this.finalize(this.createNode(), new Node.EmptyStatement()); + } + else { + this.expect(')'); + var previousInIteration = this.context.inIteration; + this.context.inIteration = true; + body = this.parseStatement(); + this.context.inIteration = previousInIteration; + } + return this.finalize(node, new Node.WhileStatement(test, body)); + }; + // https://tc39.github.io/ecma262/#sec-for-statement + // https://tc39.github.io/ecma262/#sec-for-in-and-for-of-statements + Parser.prototype.parseForStatement = function () { + var init = null; + var test = null; + var update = null; + var forIn = true; + var left, right; + var node = this.createNode(); + this.expectKeyword('for'); + this.expect('('); + if (this.match(';')) { + this.nextToken(); + } + else { + if (this.matchKeyword('var')) { + init = this.createNode(); + this.nextToken(); + var previousAllowIn = this.context.allowIn; + this.context.allowIn = false; + var declarations = this.parseVariableDeclarationList({ inFor: true }); + this.context.allowIn = previousAllowIn; + if (declarations.length === 1 && this.matchKeyword('in')) { + var decl = declarations[0]; + if (decl.init && (decl.id.type === syntax_1.Syntax.ArrayPattern || decl.id.type === syntax_1.Syntax.ObjectPattern || this.context.strict)) { + this.tolerateError(messages_1.Messages.ForInOfLoopInitializer, 'for-in'); + } + init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var')); + this.nextToken(); + left = init; + right = this.parseExpression(); + init = null; + } + else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) { + init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var')); + this.nextToken(); + left = init; + right = this.parseAssignmentExpression(); + init = null; + forIn = false; + } + else { + init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var')); + this.expect(';'); + } + } + else if (this.matchKeyword('const') || this.matchKeyword('let')) { + init = this.createNode(); + var kind = this.nextToken().value; + if (!this.context.strict && this.lookahead.value === 'in') { + init = this.finalize(init, new Node.Identifier(kind)); + this.nextToken(); + left = init; + right = this.parseExpression(); + init = null; + } + else { + var previousAllowIn = this.context.allowIn; + this.context.allowIn = false; + var declarations = this.parseBindingList(kind, { inFor: true }); + this.context.allowIn = previousAllowIn; + if (declarations.length === 1 && declarations[0].init === null && this.matchKeyword('in')) { + init = this.finalize(init, new Node.VariableDeclaration(declarations, kind)); + this.nextToken(); + left = init; + right = this.parseExpression(); + init = null; + } + else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) { + init = this.finalize(init, new Node.VariableDeclaration(declarations, kind)); + this.nextToken(); + left = init; + right = this.parseAssignmentExpression(); + init = null; + forIn = false; + } + else { + this.consumeSemicolon(); + init = this.finalize(init, new Node.VariableDeclaration(declarations, kind)); + } + } + } + else { + var initStartToken = this.lookahead; + var previousAllowIn = this.context.allowIn; + this.context.allowIn = false; + init = this.inheritCoverGrammar(this.parseAssignmentExpression); + this.context.allowIn = previousAllowIn; + if (this.matchKeyword('in')) { + if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) { + this.tolerateError(messages_1.Messages.InvalidLHSInForIn); + } + this.nextToken(); + this.reinterpretExpressionAsPattern(init); + left = init; + right = this.parseExpression(); + init = null; + } + else if (this.matchContextualKeyword('of')) { + if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) { + this.tolerateError(messages_1.Messages.InvalidLHSInForLoop); + } + this.nextToken(); + this.reinterpretExpressionAsPattern(init); + left = init; + right = this.parseAssignmentExpression(); + init = null; + forIn = false; + } + else { + if (this.match(',')) { + var initSeq = [init]; + while (this.match(',')) { + this.nextToken(); + initSeq.push(this.isolateCoverGrammar(this.parseAssignmentExpression)); + } + init = this.finalize(this.startNode(initStartToken), new Node.SequenceExpression(initSeq)); + } + this.expect(';'); + } + } + } + if (typeof left === 'undefined') { + if (!this.match(';')) { + test = this.parseExpression(); + } + this.expect(';'); + if (!this.match(')')) { + update = this.parseExpression(); + } + } + var body; + if (!this.match(')') && this.config.tolerant) { + this.tolerateUnexpectedToken(this.nextToken()); + body = this.finalize(this.createNode(), new Node.EmptyStatement()); + } + else { + this.expect(')'); + var previousInIteration = this.context.inIteration; + this.context.inIteration = true; + body = this.isolateCoverGrammar(this.parseStatement); + this.context.inIteration = previousInIteration; + } + return (typeof left === 'undefined') ? + this.finalize(node, new Node.ForStatement(init, test, update, body)) : + forIn ? this.finalize(node, new Node.ForInStatement(left, right, body)) : + this.finalize(node, new Node.ForOfStatement(left, right, body)); + }; + // https://tc39.github.io/ecma262/#sec-continue-statement + Parser.prototype.parseContinueStatement = function () { + var node = this.createNode(); + this.expectKeyword('continue'); + var label = null; + if (this.lookahead.type === 3 /* Identifier */ && !this.hasLineTerminator) { + var id = this.parseVariableIdentifier(); + label = id; + var key = '$' + id.name; + if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) { + this.throwError(messages_1.Messages.UnknownLabel, id.name); + } + } + this.consumeSemicolon(); + if (label === null && !this.context.inIteration) { + this.throwError(messages_1.Messages.IllegalContinue); + } + return this.finalize(node, new Node.ContinueStatement(label)); + }; + // https://tc39.github.io/ecma262/#sec-break-statement + Parser.prototype.parseBreakStatement = function () { + var node = this.createNode(); + this.expectKeyword('break'); + var label = null; + if (this.lookahead.type === 3 /* Identifier */ && !this.hasLineTerminator) { + var id = this.parseVariableIdentifier(); + var key = '$' + id.name; + if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) { + this.throwError(messages_1.Messages.UnknownLabel, id.name); + } + label = id; + } + this.consumeSemicolon(); + if (label === null && !this.context.inIteration && !this.context.inSwitch) { + this.throwError(messages_1.Messages.IllegalBreak); + } + return this.finalize(node, new Node.BreakStatement(label)); + }; + // https://tc39.github.io/ecma262/#sec-return-statement + Parser.prototype.parseReturnStatement = function () { + if (!this.context.inFunctionBody) { + this.tolerateError(messages_1.Messages.IllegalReturn); + } + var node = this.createNode(); + this.expectKeyword('return'); + var hasArgument = (!this.match(';') && !this.match('}') && + !this.hasLineTerminator && this.lookahead.type !== 2 /* EOF */) || + this.lookahead.type === 8 /* StringLiteral */ || + this.lookahead.type === 10 /* Template */; + var argument = hasArgument ? this.parseExpression() : null; + this.consumeSemicolon(); + return this.finalize(node, new Node.ReturnStatement(argument)); + }; + // https://tc39.github.io/ecma262/#sec-with-statement + Parser.prototype.parseWithStatement = function () { + if (this.context.strict) { + this.tolerateError(messages_1.Messages.StrictModeWith); + } + var node = this.createNode(); + var body; + this.expectKeyword('with'); + this.expect('('); + var object = this.parseExpression(); + if (!this.match(')') && this.config.tolerant) { + this.tolerateUnexpectedToken(this.nextToken()); + body = this.finalize(this.createNode(), new Node.EmptyStatement()); + } + else { + this.expect(')'); + body = this.parseStatement(); + } + return this.finalize(node, new Node.WithStatement(object, body)); + }; + // https://tc39.github.io/ecma262/#sec-switch-statement + Parser.prototype.parseSwitchCase = function () { + var node = this.createNode(); + var test; + if (this.matchKeyword('default')) { + this.nextToken(); + test = null; + } + else { + this.expectKeyword('case'); + test = this.parseExpression(); + } + this.expect(':'); + var consequent = []; + while (true) { + if (this.match('}') || this.matchKeyword('default') || this.matchKeyword('case')) { + break; + } + consequent.push(this.parseStatementListItem()); + } + return this.finalize(node, new Node.SwitchCase(test, consequent)); + }; + Parser.prototype.parseSwitchStatement = function () { + var node = this.createNode(); + this.expectKeyword('switch'); + this.expect('('); + var discriminant = this.parseExpression(); + this.expect(')'); + var previousInSwitch = this.context.inSwitch; + this.context.inSwitch = true; + var cases = []; + var defaultFound = false; + this.expect('{'); + while (true) { + if (this.match('}')) { + break; + } + var clause = this.parseSwitchCase(); + if (clause.test === null) { + if (defaultFound) { + this.throwError(messages_1.Messages.MultipleDefaultsInSwitch); + } + defaultFound = true; + } + cases.push(clause); + } + this.expect('}'); + this.context.inSwitch = previousInSwitch; + return this.finalize(node, new Node.SwitchStatement(discriminant, cases)); + }; + // https://tc39.github.io/ecma262/#sec-labelled-statements + Parser.prototype.parseLabelledStatement = function () { + var node = this.createNode(); + var expr = this.parseExpression(); + var statement; + if ((expr.type === syntax_1.Syntax.Identifier) && this.match(':')) { + this.nextToken(); + var id = expr; + var key = '$' + id.name; + if (Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) { + this.throwError(messages_1.Messages.Redeclaration, 'Label', id.name); + } + this.context.labelSet[key] = true; + var body = void 0; + if (this.matchKeyword('class')) { + this.tolerateUnexpectedToken(this.lookahead); + body = this.parseClassDeclaration(); + } + else if (this.matchKeyword('function')) { + var token = this.lookahead; + var declaration = this.parseFunctionDeclaration(); + if (this.context.strict) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunction); + } + else if (declaration.generator) { + this.tolerateUnexpectedToken(token, messages_1.Messages.GeneratorInLegacyContext); + } + body = declaration; + } + else { + body = this.parseStatement(); + } + delete this.context.labelSet[key]; + statement = new Node.LabeledStatement(id, body); + } + else { + this.consumeSemicolon(); + statement = new Node.ExpressionStatement(expr); + } + return this.finalize(node, statement); + }; + // https://tc39.github.io/ecma262/#sec-throw-statement + Parser.prototype.parseThrowStatement = function () { + var node = this.createNode(); + this.expectKeyword('throw'); + if (this.hasLineTerminator) { + this.throwError(messages_1.Messages.NewlineAfterThrow); + } + var argument = this.parseExpression(); + this.consumeSemicolon(); + return this.finalize(node, new Node.ThrowStatement(argument)); + }; + // https://tc39.github.io/ecma262/#sec-try-statement + Parser.prototype.parseCatchClause = function () { + var node = this.createNode(); + this.expectKeyword('catch'); + this.expect('('); + if (this.match(')')) { + this.throwUnexpectedToken(this.lookahead); + } + var params = []; + var param = this.parsePattern(params); + var paramMap = {}; + for (var i = 0; i < params.length; i++) { + var key = '$' + params[i].value; + if (Object.prototype.hasOwnProperty.call(paramMap, key)) { + this.tolerateError(messages_1.Messages.DuplicateBinding, params[i].value); + } + paramMap[key] = true; + } + if (this.context.strict && param.type === syntax_1.Syntax.Identifier) { + if (this.scanner.isRestrictedWord(param.name)) { + this.tolerateError(messages_1.Messages.StrictCatchVariable); + } + } + this.expect(')'); + var body = this.parseBlock(); + return this.finalize(node, new Node.CatchClause(param, body)); + }; + Parser.prototype.parseFinallyClause = function () { + this.expectKeyword('finally'); + return this.parseBlock(); + }; + Parser.prototype.parseTryStatement = function () { + var node = this.createNode(); + this.expectKeyword('try'); + var block = this.parseBlock(); + var handler = this.matchKeyword('catch') ? this.parseCatchClause() : null; + var finalizer = this.matchKeyword('finally') ? this.parseFinallyClause() : null; + if (!handler && !finalizer) { + this.throwError(messages_1.Messages.NoCatchOrFinally); + } + return this.finalize(node, new Node.TryStatement(block, handler, finalizer)); + }; + // https://tc39.github.io/ecma262/#sec-debugger-statement + Parser.prototype.parseDebuggerStatement = function () { + var node = this.createNode(); + this.expectKeyword('debugger'); + this.consumeSemicolon(); + return this.finalize(node, new Node.DebuggerStatement()); + }; + // https://tc39.github.io/ecma262/#sec-ecmascript-language-statements-and-declarations + Parser.prototype.parseStatement = function () { + var statement; + switch (this.lookahead.type) { + case 1 /* BooleanLiteral */: + case 5 /* NullLiteral */: + case 6 /* NumericLiteral */: + case 8 /* StringLiteral */: + case 10 /* Template */: + case 9 /* RegularExpression */: + statement = this.parseExpressionStatement(); + break; + case 7 /* Punctuator */: + var value = this.lookahead.value; + if (value === '{') { + statement = this.parseBlock(); + } + else if (value === '(') { + statement = this.parseExpressionStatement(); + } + else if (value === ';') { + statement = this.parseEmptyStatement(); + } + else { + statement = this.parseExpressionStatement(); + } + break; + case 3 /* Identifier */: + statement = this.matchAsyncFunction() ? this.parseFunctionDeclaration() : this.parseLabelledStatement(); + break; + case 4 /* Keyword */: + switch (this.lookahead.value) { + case 'break': + statement = this.parseBreakStatement(); + break; + case 'continue': + statement = this.parseContinueStatement(); + break; + case 'debugger': + statement = this.parseDebuggerStatement(); + break; + case 'do': + statement = this.parseDoWhileStatement(); + break; + case 'for': + statement = this.parseForStatement(); + break; + case 'function': + statement = this.parseFunctionDeclaration(); + break; + case 'if': + statement = this.parseIfStatement(); + break; + case 'return': + statement = this.parseReturnStatement(); + break; + case 'switch': + statement = this.parseSwitchStatement(); + break; + case 'throw': + statement = this.parseThrowStatement(); + break; + case 'try': + statement = this.parseTryStatement(); + break; + case 'var': + statement = this.parseVariableStatement(); + break; + case 'while': + statement = this.parseWhileStatement(); + break; + case 'with': + statement = this.parseWithStatement(); + break; + default: + statement = this.parseExpressionStatement(); + break; + } + break; + default: + statement = this.throwUnexpectedToken(this.lookahead); + } + return statement; + }; + // https://tc39.github.io/ecma262/#sec-function-definitions + Parser.prototype.parseFunctionSourceElements = function () { + var node = this.createNode(); + this.expect('{'); + var body = this.parseDirectivePrologues(); + var previousLabelSet = this.context.labelSet; + var previousInIteration = this.context.inIteration; + var previousInSwitch = this.context.inSwitch; + var previousInFunctionBody = this.context.inFunctionBody; + this.context.labelSet = {}; + this.context.inIteration = false; + this.context.inSwitch = false; + this.context.inFunctionBody = true; + while (this.lookahead.type !== 2 /* EOF */) { + if (this.match('}')) { + break; + } + body.push(this.parseStatementListItem()); + } + this.expect('}'); + this.context.labelSet = previousLabelSet; + this.context.inIteration = previousInIteration; + this.context.inSwitch = previousInSwitch; + this.context.inFunctionBody = previousInFunctionBody; + return this.finalize(node, new Node.BlockStatement(body)); + }; + Parser.prototype.validateParam = function (options, param, name) { + var key = '$' + name; + if (this.context.strict) { + if (this.scanner.isRestrictedWord(name)) { + options.stricted = param; + options.message = messages_1.Messages.StrictParamName; + } + if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) { + options.stricted = param; + options.message = messages_1.Messages.StrictParamDupe; + } + } + else if (!options.firstRestricted) { + if (this.scanner.isRestrictedWord(name)) { + options.firstRestricted = param; + options.message = messages_1.Messages.StrictParamName; + } + else if (this.scanner.isStrictModeReservedWord(name)) { + options.firstRestricted = param; + options.message = messages_1.Messages.StrictReservedWord; + } + else if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) { + options.stricted = param; + options.message = messages_1.Messages.StrictParamDupe; + } + } + /* istanbul ignore next */ + if (typeof Object.defineProperty === 'function') { + Object.defineProperty(options.paramSet, key, { value: true, enumerable: true, writable: true, configurable: true }); + } + else { + options.paramSet[key] = true; + } + }; + Parser.prototype.parseRestElement = function (params) { + var node = this.createNode(); + this.expect('...'); + var arg = this.parsePattern(params); + if (this.match('=')) { + this.throwError(messages_1.Messages.DefaultRestParameter); + } + if (!this.match(')')) { + this.throwError(messages_1.Messages.ParameterAfterRestParameter); + } + return this.finalize(node, new Node.RestElement(arg)); + }; + Parser.prototype.parseFormalParameter = function (options) { + var params = []; + var param = this.match('...') ? this.parseRestElement(params) : this.parsePatternWithDefault(params); + for (var i = 0; i < params.length; i++) { + this.validateParam(options, params[i], params[i].value); + } + options.simple = options.simple && (param instanceof Node.Identifier); + options.params.push(param); + }; + Parser.prototype.parseFormalParameters = function (firstRestricted) { + var options; + options = { + simple: true, + params: [], + firstRestricted: firstRestricted + }; + this.expect('('); + if (!this.match(')')) { + options.paramSet = {}; + while (this.lookahead.type !== 2 /* EOF */) { + this.parseFormalParameter(options); + if (this.match(')')) { + break; + } + this.expect(','); + if (this.match(')')) { + break; + } + } + } + this.expect(')'); + return { + simple: options.simple, + params: options.params, + stricted: options.stricted, + firstRestricted: options.firstRestricted, + message: options.message + }; + }; + Parser.prototype.matchAsyncFunction = function () { + var match = this.matchContextualKeyword('async'); + if (match) { + var state = this.scanner.saveState(); + this.scanner.scanComments(); + var next = this.scanner.lex(); + this.scanner.restoreState(state); + match = (state.lineNumber === next.lineNumber) && (next.type === 4 /* Keyword */) && (next.value === 'function'); + } + return match; + }; + Parser.prototype.parseFunctionDeclaration = function (identifierIsOptional) { + var node = this.createNode(); + var isAsync = this.matchContextualKeyword('async'); + if (isAsync) { + this.nextToken(); + } + this.expectKeyword('function'); + var isGenerator = isAsync ? false : this.match('*'); + if (isGenerator) { + this.nextToken(); + } + var message; + var id = null; + var firstRestricted = null; + if (!identifierIsOptional || !this.match('(')) { + var token = this.lookahead; + id = this.parseVariableIdentifier(); + if (this.context.strict) { + if (this.scanner.isRestrictedWord(token.value)) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName); + } + } + else { + if (this.scanner.isRestrictedWord(token.value)) { + firstRestricted = token; + message = messages_1.Messages.StrictFunctionName; + } + else if (this.scanner.isStrictModeReservedWord(token.value)) { + firstRestricted = token; + message = messages_1.Messages.StrictReservedWord; + } + } + } + var previousAllowAwait = this.context.await; + var previousAllowYield = this.context.allowYield; + this.context.await = isAsync; + this.context.allowYield = !isGenerator; + var formalParameters = this.parseFormalParameters(firstRestricted); + var params = formalParameters.params; + var stricted = formalParameters.stricted; + firstRestricted = formalParameters.firstRestricted; + if (formalParameters.message) { + message = formalParameters.message; + } + var previousStrict = this.context.strict; + var previousAllowStrictDirective = this.context.allowStrictDirective; + this.context.allowStrictDirective = formalParameters.simple; + var body = this.parseFunctionSourceElements(); + if (this.context.strict && firstRestricted) { + this.throwUnexpectedToken(firstRestricted, message); + } + if (this.context.strict && stricted) { + this.tolerateUnexpectedToken(stricted, message); + } + this.context.strict = previousStrict; + this.context.allowStrictDirective = previousAllowStrictDirective; + this.context.await = previousAllowAwait; + this.context.allowYield = previousAllowYield; + return isAsync ? this.finalize(node, new Node.AsyncFunctionDeclaration(id, params, body)) : + this.finalize(node, new Node.FunctionDeclaration(id, params, body, isGenerator)); + }; + Parser.prototype.parseFunctionExpression = function () { + var node = this.createNode(); + var isAsync = this.matchContextualKeyword('async'); + if (isAsync) { + this.nextToken(); + } + this.expectKeyword('function'); + var isGenerator = isAsync ? false : this.match('*'); + if (isGenerator) { + this.nextToken(); + } + var message; + var id = null; + var firstRestricted; + var previousAllowAwait = this.context.await; + var previousAllowYield = this.context.allowYield; + this.context.await = isAsync; + this.context.allowYield = !isGenerator; + if (!this.match('(')) { + var token = this.lookahead; + id = (!this.context.strict && !isGenerator && this.matchKeyword('yield')) ? this.parseIdentifierName() : this.parseVariableIdentifier(); + if (this.context.strict) { + if (this.scanner.isRestrictedWord(token.value)) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName); + } + } + else { + if (this.scanner.isRestrictedWord(token.value)) { + firstRestricted = token; + message = messages_1.Messages.StrictFunctionName; + } + else if (this.scanner.isStrictModeReservedWord(token.value)) { + firstRestricted = token; + message = messages_1.Messages.StrictReservedWord; + } + } + } + var formalParameters = this.parseFormalParameters(firstRestricted); + var params = formalParameters.params; + var stricted = formalParameters.stricted; + firstRestricted = formalParameters.firstRestricted; + if (formalParameters.message) { + message = formalParameters.message; + } + var previousStrict = this.context.strict; + var previousAllowStrictDirective = this.context.allowStrictDirective; + this.context.allowStrictDirective = formalParameters.simple; + var body = this.parseFunctionSourceElements(); + if (this.context.strict && firstRestricted) { + this.throwUnexpectedToken(firstRestricted, message); + } + if (this.context.strict && stricted) { + this.tolerateUnexpectedToken(stricted, message); + } + this.context.strict = previousStrict; + this.context.allowStrictDirective = previousAllowStrictDirective; + this.context.await = previousAllowAwait; + this.context.allowYield = previousAllowYield; + return isAsync ? this.finalize(node, new Node.AsyncFunctionExpression(id, params, body)) : + this.finalize(node, new Node.FunctionExpression(id, params, body, isGenerator)); + }; + // https://tc39.github.io/ecma262/#sec-directive-prologues-and-the-use-strict-directive + Parser.prototype.parseDirective = function () { + var token = this.lookahead; + var node = this.createNode(); + var expr = this.parseExpression(); + var directive = (expr.type === syntax_1.Syntax.Literal) ? this.getTokenRaw(token).slice(1, -1) : null; + this.consumeSemicolon(); + return this.finalize(node, directive ? new Node.Directive(expr, directive) : new Node.ExpressionStatement(expr)); + }; + Parser.prototype.parseDirectivePrologues = function () { + var firstRestricted = null; + var body = []; + while (true) { + var token = this.lookahead; + if (token.type !== 8 /* StringLiteral */) { + break; + } + var statement = this.parseDirective(); + body.push(statement); + var directive = statement.directive; + if (typeof directive !== 'string') { + break; + } + if (directive === 'use strict') { + this.context.strict = true; + if (firstRestricted) { + this.tolerateUnexpectedToken(firstRestricted, messages_1.Messages.StrictOctalLiteral); + } + if (!this.context.allowStrictDirective) { + this.tolerateUnexpectedToken(token, messages_1.Messages.IllegalLanguageModeDirective); + } + } + else { + if (!firstRestricted && token.octal) { + firstRestricted = token; + } + } + } + return body; + }; + // https://tc39.github.io/ecma262/#sec-method-definitions + Parser.prototype.qualifiedPropertyName = function (token) { + switch (token.type) { + case 3 /* Identifier */: + case 8 /* StringLiteral */: + case 1 /* BooleanLiteral */: + case 5 /* NullLiteral */: + case 6 /* NumericLiteral */: + case 4 /* Keyword */: + return true; + case 7 /* Punctuator */: + return token.value === '['; + default: + break; + } + return false; + }; + Parser.prototype.parseGetterMethod = function () { + var node = this.createNode(); + var isGenerator = false; + var previousAllowYield = this.context.allowYield; + this.context.allowYield = !isGenerator; + var formalParameters = this.parseFormalParameters(); + if (formalParameters.params.length > 0) { + this.tolerateError(messages_1.Messages.BadGetterArity); + } + var method = this.parsePropertyMethod(formalParameters); + this.context.allowYield = previousAllowYield; + return this.finalize(node, new Node.FunctionExpression(null, formalParameters.params, method, isGenerator)); + }; + Parser.prototype.parseSetterMethod = function () { + var node = this.createNode(); + var isGenerator = false; + var previousAllowYield = this.context.allowYield; + this.context.allowYield = !isGenerator; + var formalParameters = this.parseFormalParameters(); + if (formalParameters.params.length !== 1) { + this.tolerateError(messages_1.Messages.BadSetterArity); + } + else if (formalParameters.params[0] instanceof Node.RestElement) { + this.tolerateError(messages_1.Messages.BadSetterRestParameter); + } + var method = this.parsePropertyMethod(formalParameters); + this.context.allowYield = previousAllowYield; + return this.finalize(node, new Node.FunctionExpression(null, formalParameters.params, method, isGenerator)); + }; + Parser.prototype.parseGeneratorMethod = function () { + var node = this.createNode(); + var isGenerator = true; + var previousAllowYield = this.context.allowYield; + this.context.allowYield = true; + var params = this.parseFormalParameters(); + this.context.allowYield = false; + var method = this.parsePropertyMethod(params); + this.context.allowYield = previousAllowYield; + return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator)); + }; + // https://tc39.github.io/ecma262/#sec-generator-function-definitions + Parser.prototype.isStartOfExpression = function () { + var start = true; + var value = this.lookahead.value; + switch (this.lookahead.type) { + case 7 /* Punctuator */: + start = (value === '[') || (value === '(') || (value === '{') || + (value === '+') || (value === '-') || + (value === '!') || (value === '~') || + (value === '++') || (value === '--') || + (value === '/') || (value === '/='); // regular expression literal + break; + case 4 /* Keyword */: + start = (value === 'class') || (value === 'delete') || + (value === 'function') || (value === 'let') || (value === 'new') || + (value === 'super') || (value === 'this') || (value === 'typeof') || + (value === 'void') || (value === 'yield'); + break; + default: + break; + } + return start; + }; + Parser.prototype.parseYieldExpression = function () { + var node = this.createNode(); + this.expectKeyword('yield'); + var argument = null; + var delegate = false; + if (!this.hasLineTerminator) { + var previousAllowYield = this.context.allowYield; + this.context.allowYield = false; + delegate = this.match('*'); + if (delegate) { + this.nextToken(); + argument = this.parseAssignmentExpression(); + } + else if (this.isStartOfExpression()) { + argument = this.parseAssignmentExpression(); + } + this.context.allowYield = previousAllowYield; + } + return this.finalize(node, new Node.YieldExpression(argument, delegate)); + }; + // https://tc39.github.io/ecma262/#sec-class-definitions + Parser.prototype.parseClassElement = function (hasConstructor) { + var token = this.lookahead; + var node = this.createNode(); + var kind = ''; + var key = null; + var value = null; + var computed = false; + var method = false; + var isStatic = false; + var isAsync = false; + if (this.match('*')) { + this.nextToken(); + } + else { + computed = this.match('['); + key = this.parseObjectPropertyKey(); + var id = key; + if (id.name === 'static' && (this.qualifiedPropertyName(this.lookahead) || this.match('*'))) { + token = this.lookahead; + isStatic = true; + computed = this.match('['); + if (this.match('*')) { + this.nextToken(); + } + else { + key = this.parseObjectPropertyKey(); + } + } + if ((token.type === 3 /* Identifier */) && !this.hasLineTerminator && (token.value === 'async')) { + var punctuator = this.lookahead.value; + if (punctuator !== ':' && punctuator !== '(' && punctuator !== '*') { + isAsync = true; + token = this.lookahead; + key = this.parseObjectPropertyKey(); + if (token.type === 3 /* Identifier */ && token.value === 'constructor') { + this.tolerateUnexpectedToken(token, messages_1.Messages.ConstructorIsAsync); + } + } + } + } + var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead); + if (token.type === 3 /* Identifier */) { + if (token.value === 'get' && lookaheadPropertyKey) { + kind = 'get'; + computed = this.match('['); + key = this.parseObjectPropertyKey(); + this.context.allowYield = false; + value = this.parseGetterMethod(); + } + else if (token.value === 'set' && lookaheadPropertyKey) { + kind = 'set'; + computed = this.match('['); + key = this.parseObjectPropertyKey(); + value = this.parseSetterMethod(); + } + } + else if (token.type === 7 /* Punctuator */ && token.value === '*' && lookaheadPropertyKey) { + kind = 'init'; + computed = this.match('['); + key = this.parseObjectPropertyKey(); + value = this.parseGeneratorMethod(); + method = true; + } + if (!kind && key && this.match('(')) { + kind = 'init'; + value = isAsync ? this.parsePropertyMethodAsyncFunction() : this.parsePropertyMethodFunction(); + method = true; + } + if (!kind) { + this.throwUnexpectedToken(this.lookahead); + } + if (kind === 'init') { + kind = 'method'; + } + if (!computed) { + if (isStatic && this.isPropertyKey(key, 'prototype')) { + this.throwUnexpectedToken(token, messages_1.Messages.StaticPrototype); + } + if (!isStatic && this.isPropertyKey(key, 'constructor')) { + if (kind !== 'method' || !method || (value && value.generator)) { + this.throwUnexpectedToken(token, messages_1.Messages.ConstructorSpecialMethod); + } + if (hasConstructor.value) { + this.throwUnexpectedToken(token, messages_1.Messages.DuplicateConstructor); + } + else { + hasConstructor.value = true; + } + kind = 'constructor'; + } + } + return this.finalize(node, new Node.MethodDefinition(key, computed, value, kind, isStatic)); + }; + Parser.prototype.parseClassElementList = function () { + var body = []; + var hasConstructor = { value: false }; + this.expect('{'); + while (!this.match('}')) { + if (this.match(';')) { + this.nextToken(); + } + else { + body.push(this.parseClassElement(hasConstructor)); + } + } + this.expect('}'); + return body; + }; + Parser.prototype.parseClassBody = function () { + var node = this.createNode(); + var elementList = this.parseClassElementList(); + return this.finalize(node, new Node.ClassBody(elementList)); + }; + Parser.prototype.parseClassDeclaration = function (identifierIsOptional) { + var node = this.createNode(); + var previousStrict = this.context.strict; + this.context.strict = true; + this.expectKeyword('class'); + var id = (identifierIsOptional && (this.lookahead.type !== 3 /* Identifier */)) ? null : this.parseVariableIdentifier(); + var superClass = null; + if (this.matchKeyword('extends')) { + this.nextToken(); + superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall); + } + var classBody = this.parseClassBody(); + this.context.strict = previousStrict; + return this.finalize(node, new Node.ClassDeclaration(id, superClass, classBody)); + }; + Parser.prototype.parseClassExpression = function () { + var node = this.createNode(); + var previousStrict = this.context.strict; + this.context.strict = true; + this.expectKeyword('class'); + var id = (this.lookahead.type === 3 /* Identifier */) ? this.parseVariableIdentifier() : null; + var superClass = null; + if (this.matchKeyword('extends')) { + this.nextToken(); + superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall); + } + var classBody = this.parseClassBody(); + this.context.strict = previousStrict; + return this.finalize(node, new Node.ClassExpression(id, superClass, classBody)); + }; + // https://tc39.github.io/ecma262/#sec-scripts + // https://tc39.github.io/ecma262/#sec-modules + Parser.prototype.parseModule = function () { + this.context.strict = true; + this.context.isModule = true; + this.scanner.isModule = true; + var node = this.createNode(); + var body = this.parseDirectivePrologues(); + while (this.lookahead.type !== 2 /* EOF */) { + body.push(this.parseStatementListItem()); + } + return this.finalize(node, new Node.Module(body)); + }; + Parser.prototype.parseScript = function () { + var node = this.createNode(); + var body = this.parseDirectivePrologues(); + while (this.lookahead.type !== 2 /* EOF */) { + body.push(this.parseStatementListItem()); + } + return this.finalize(node, new Node.Script(body)); + }; + // https://tc39.github.io/ecma262/#sec-imports + Parser.prototype.parseModuleSpecifier = function () { + var node = this.createNode(); + if (this.lookahead.type !== 8 /* StringLiteral */) { + this.throwError(messages_1.Messages.InvalidModuleSpecifier); + } + var token = this.nextToken(); + var raw = this.getTokenRaw(token); + return this.finalize(node, new Node.Literal(token.value, raw)); + }; + // import {} ...; + Parser.prototype.parseImportSpecifier = function () { + var node = this.createNode(); + var imported; + var local; + if (this.lookahead.type === 3 /* Identifier */) { + imported = this.parseVariableIdentifier(); + local = imported; + if (this.matchContextualKeyword('as')) { + this.nextToken(); + local = this.parseVariableIdentifier(); + } + } + else { + imported = this.parseIdentifierName(); + local = imported; + if (this.matchContextualKeyword('as')) { + this.nextToken(); + local = this.parseVariableIdentifier(); + } + else { + this.throwUnexpectedToken(this.nextToken()); + } + } + return this.finalize(node, new Node.ImportSpecifier(local, imported)); + }; + // {foo, bar as bas} + Parser.prototype.parseNamedImports = function () { + this.expect('{'); + var specifiers = []; + while (!this.match('}')) { + specifiers.push(this.parseImportSpecifier()); + if (!this.match('}')) { + this.expect(','); + } + } + this.expect('}'); + return specifiers; + }; + // import ...; + Parser.prototype.parseImportDefaultSpecifier = function () { + var node = this.createNode(); + var local = this.parseIdentifierName(); + return this.finalize(node, new Node.ImportDefaultSpecifier(local)); + }; + // import <* as foo> ...; + Parser.prototype.parseImportNamespaceSpecifier = function () { + var node = this.createNode(); + this.expect('*'); + if (!this.matchContextualKeyword('as')) { + this.throwError(messages_1.Messages.NoAsAfterImportNamespace); + } + this.nextToken(); + var local = this.parseIdentifierName(); + return this.finalize(node, new Node.ImportNamespaceSpecifier(local)); + }; + Parser.prototype.parseImportDeclaration = function () { + if (this.context.inFunctionBody) { + this.throwError(messages_1.Messages.IllegalImportDeclaration); + } + var node = this.createNode(); + this.expectKeyword('import'); + var src; + var specifiers = []; + if (this.lookahead.type === 8 /* StringLiteral */) { + // import 'foo'; + src = this.parseModuleSpecifier(); + } + else { + if (this.match('{')) { + // import {bar} + specifiers = specifiers.concat(this.parseNamedImports()); + } + else if (this.match('*')) { + // import * as foo + specifiers.push(this.parseImportNamespaceSpecifier()); + } + else if (this.isIdentifierName(this.lookahead) && !this.matchKeyword('default')) { + // import foo + specifiers.push(this.parseImportDefaultSpecifier()); + if (this.match(',')) { + this.nextToken(); + if (this.match('*')) { + // import foo, * as foo + specifiers.push(this.parseImportNamespaceSpecifier()); + } + else if (this.match('{')) { + // import foo, {bar} + specifiers = specifiers.concat(this.parseNamedImports()); + } + else { + this.throwUnexpectedToken(this.lookahead); + } + } + } + else { + this.throwUnexpectedToken(this.nextToken()); + } + if (!this.matchContextualKeyword('from')) { + var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause; + this.throwError(message, this.lookahead.value); + } + this.nextToken(); + src = this.parseModuleSpecifier(); + } + this.consumeSemicolon(); + return this.finalize(node, new Node.ImportDeclaration(specifiers, src)); + }; + // https://tc39.github.io/ecma262/#sec-exports + Parser.prototype.parseExportSpecifier = function () { + var node = this.createNode(); + var local = this.parseIdentifierName(); + var exported = local; + if (this.matchContextualKeyword('as')) { + this.nextToken(); + exported = this.parseIdentifierName(); + } + return this.finalize(node, new Node.ExportSpecifier(local, exported)); + }; + Parser.prototype.parseExportDeclaration = function () { + if (this.context.inFunctionBody) { + this.throwError(messages_1.Messages.IllegalExportDeclaration); + } + var node = this.createNode(); + this.expectKeyword('export'); + var exportDeclaration; + if (this.matchKeyword('default')) { + // export default ... + this.nextToken(); + if (this.matchKeyword('function')) { + // export default function foo () {} + // export default function () {} + var declaration = this.parseFunctionDeclaration(true); + exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); + } + else if (this.matchKeyword('class')) { + // export default class foo {} + var declaration = this.parseClassDeclaration(true); + exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); + } + else if (this.matchContextualKeyword('async')) { + // export default async function f () {} + // export default async function () {} + // export default async x => x + var declaration = this.matchAsyncFunction() ? this.parseFunctionDeclaration(true) : this.parseAssignmentExpression(); + exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); + } + else { + if (this.matchContextualKeyword('from')) { + this.throwError(messages_1.Messages.UnexpectedToken, this.lookahead.value); + } + // export default {}; + // export default []; + // export default (1 + 2); + var declaration = this.match('{') ? this.parseObjectInitializer() : + this.match('[') ? this.parseArrayInitializer() : this.parseAssignmentExpression(); + this.consumeSemicolon(); + exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); + } + } + else if (this.match('*')) { + // export * from 'foo'; + this.nextToken(); + if (!this.matchContextualKeyword('from')) { + var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause; + this.throwError(message, this.lookahead.value); + } + this.nextToken(); + var src = this.parseModuleSpecifier(); + this.consumeSemicolon(); + exportDeclaration = this.finalize(node, new Node.ExportAllDeclaration(src)); + } + else if (this.lookahead.type === 4 /* Keyword */) { + // export var f = 1; + var declaration = void 0; + switch (this.lookahead.value) { + case 'let': + case 'const': + declaration = this.parseLexicalDeclaration({ inFor: false }); + break; + case 'var': + case 'class': + case 'function': + declaration = this.parseStatementListItem(); + break; + default: + this.throwUnexpectedToken(this.lookahead); + } + exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(declaration, [], null)); + } + else if (this.matchAsyncFunction()) { + var declaration = this.parseFunctionDeclaration(); + exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(declaration, [], null)); + } + else { + var specifiers = []; + var source = null; + var isExportFromIdentifier = false; + this.expect('{'); + while (!this.match('}')) { + isExportFromIdentifier = isExportFromIdentifier || this.matchKeyword('default'); + specifiers.push(this.parseExportSpecifier()); + if (!this.match('}')) { + this.expect(','); + } + } + this.expect('}'); + if (this.matchContextualKeyword('from')) { + // export {default} from 'foo'; + // export {foo} from 'foo'; + this.nextToken(); + source = this.parseModuleSpecifier(); + this.consumeSemicolon(); + } + else if (isExportFromIdentifier) { + // export {default}; // missing fromClause + var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause; + this.throwError(message, this.lookahead.value); + } + else { + // export {foo}; + this.consumeSemicolon(); + } + exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(null, specifiers, source)); + } + return exportDeclaration; + }; + return Parser; + }()); + exports.Parser = Parser; /***/ }, /* 9 */ /***/ function(module, exports) { - "use strict"; - // Ensure the condition is true, otherwise throw an error. - // This is only to have a better contract semantic, i.e. another safety net - // to catch a logic error. The condition shall be fulfilled in normal case. - // Do NOT use this to enforce a certain condition on any user input. - Object.defineProperty(exports, "__esModule", { value: true }); - function assert(condition, message) { - /* istanbul ignore if */ - if (!condition) { - throw new Error('ASSERT: ' + message); - } - } - exports.assert = assert; + "use strict"; + // Ensure the condition is true, otherwise throw an error. + // This is only to have a better contract semantic, i.e. another safety net + // to catch a logic error. The condition shall be fulfilled in normal case. + // Do NOT use this to enforce a certain condition on any user input. + Object.defineProperty(exports, "__esModule", { value: true }); + function assert(condition, message) { + /* istanbul ignore if */ + if (!condition) { + throw new Error('ASSERT: ' + message); + } + } + exports.assert = assert; /***/ }, /* 10 */ /***/ function(module, exports) { - "use strict"; - /* tslint:disable:max-classes-per-file */ - Object.defineProperty(exports, "__esModule", { value: true }); - var ErrorHandler = (function () { - function ErrorHandler() { - this.errors = []; - this.tolerant = false; - } - ErrorHandler.prototype.recordError = function (error) { - this.errors.push(error); - }; - ErrorHandler.prototype.tolerate = function (error) { - if (this.tolerant) { - this.recordError(error); - } - else { - throw error; - } - }; - ErrorHandler.prototype.constructError = function (msg, column) { - var error = new Error(msg); - try { - throw error; - } - catch (base) { - /* istanbul ignore else */ - if (Object.create && Object.defineProperty) { - error = Object.create(base); - Object.defineProperty(error, 'column', { value: column }); - } - } - /* istanbul ignore next */ - return error; - }; - ErrorHandler.prototype.createError = function (index, line, col, description) { - var msg = 'Line ' + line + ': ' + description; - var error = this.constructError(msg, col); - error.index = index; - error.lineNumber = line; - error.description = description; - return error; - }; - ErrorHandler.prototype.throwError = function (index, line, col, description) { - throw this.createError(index, line, col, description); - }; - ErrorHandler.prototype.tolerateError = function (index, line, col, description) { - var error = this.createError(index, line, col, description); - if (this.tolerant) { - this.recordError(error); - } - else { - throw error; - } - }; - return ErrorHandler; - }()); - exports.ErrorHandler = ErrorHandler; + "use strict"; + /* tslint:disable:max-classes-per-file */ + Object.defineProperty(exports, "__esModule", { value: true }); + var ErrorHandler = (function () { + function ErrorHandler() { + this.errors = []; + this.tolerant = false; + } + ErrorHandler.prototype.recordError = function (error) { + this.errors.push(error); + }; + ErrorHandler.prototype.tolerate = function (error) { + if (this.tolerant) { + this.recordError(error); + } + else { + throw error; + } + }; + ErrorHandler.prototype.constructError = function (msg, column) { + var error = new Error(msg); + try { + throw error; + } + catch (base) { + /* istanbul ignore else */ + if (Object.create && Object.defineProperty) { + error = Object.create(base); + Object.defineProperty(error, 'column', { value: column }); + } + } + /* istanbul ignore next */ + return error; + }; + ErrorHandler.prototype.createError = function (index, line, col, description) { + var msg = 'Line ' + line + ': ' + description; + var error = this.constructError(msg, col); + error.index = index; + error.lineNumber = line; + error.description = description; + return error; + }; + ErrorHandler.prototype.throwError = function (index, line, col, description) { + throw this.createError(index, line, col, description); + }; + ErrorHandler.prototype.tolerateError = function (index, line, col, description) { + var error = this.createError(index, line, col, description); + if (this.tolerant) { + this.recordError(error); + } + else { + throw error; + } + }; + return ErrorHandler; + }()); + exports.ErrorHandler = ErrorHandler; /***/ }, /* 11 */ /***/ function(module, exports) { - "use strict"; - Object.defineProperty(exports, "__esModule", { value: true }); - // Error messages should be identical to V8. - exports.Messages = { - BadGetterArity: 'Getter must not have any formal parameters', - BadSetterArity: 'Setter must have exactly one formal parameter', - BadSetterRestParameter: 'Setter function argument must not be a rest parameter', - ConstructorIsAsync: 'Class constructor may not be an async method', - ConstructorSpecialMethod: 'Class constructor may not be an accessor', - DeclarationMissingInitializer: 'Missing initializer in %0 declaration', - DefaultRestParameter: 'Unexpected token =', - DuplicateBinding: 'Duplicate binding %0', - DuplicateConstructor: 'A class may only have one constructor', - DuplicateProtoProperty: 'Duplicate __proto__ fields are not allowed in object literals', - ForInOfLoopInitializer: '%0 loop variable declaration may not have an initializer', - GeneratorInLegacyContext: 'Generator declarations are not allowed in legacy contexts', - IllegalBreak: 'Illegal break statement', - IllegalContinue: 'Illegal continue statement', - IllegalExportDeclaration: 'Unexpected token', - IllegalImportDeclaration: 'Unexpected token', - IllegalLanguageModeDirective: 'Illegal \'use strict\' directive in function with non-simple parameter list', - IllegalReturn: 'Illegal return statement', - InvalidEscapedReservedWord: 'Keyword must not contain escaped characters', - InvalidHexEscapeSequence: 'Invalid hexadecimal escape sequence', - InvalidLHSInAssignment: 'Invalid left-hand side in assignment', - InvalidLHSInForIn: 'Invalid left-hand side in for-in', - InvalidLHSInForLoop: 'Invalid left-hand side in for-loop', - InvalidModuleSpecifier: 'Unexpected token', - InvalidRegExp: 'Invalid regular expression', - LetInLexicalBinding: 'let is disallowed as a lexically bound name', - MissingFromClause: 'Unexpected token', - MultipleDefaultsInSwitch: 'More than one default clause in switch statement', - NewlineAfterThrow: 'Illegal newline after throw', - NoAsAfterImportNamespace: 'Unexpected token', - NoCatchOrFinally: 'Missing catch or finally after try', - ParameterAfterRestParameter: 'Rest parameter must be last formal parameter', - Redeclaration: '%0 \'%1\' has already been declared', - StaticPrototype: 'Classes may not have static property named prototype', - StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode', - StrictDelete: 'Delete of an unqualified identifier in strict mode.', - StrictFunction: 'In strict mode code, functions can only be declared at top level or inside a block', - StrictFunctionName: 'Function name may not be eval or arguments in strict mode', - StrictLHSAssignment: 'Assignment to eval or arguments is not allowed in strict mode', - StrictLHSPostfix: 'Postfix increment/decrement may not have eval or arguments operand in strict mode', - StrictLHSPrefix: 'Prefix increment/decrement may not have eval or arguments operand in strict mode', - StrictModeWith: 'Strict mode code may not include a with statement', - StrictOctalLiteral: 'Octal literals are not allowed in strict mode.', - StrictParamDupe: 'Strict mode function may not have duplicate parameter names', - StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode', - StrictReservedWord: 'Use of future reserved word in strict mode', - StrictVarName: 'Variable name may not be eval or arguments in strict mode', - TemplateOctalLiteral: 'Octal literals are not allowed in template strings.', - UnexpectedEOS: 'Unexpected end of input', - UnexpectedIdentifier: 'Unexpected identifier', - UnexpectedNumber: 'Unexpected number', - UnexpectedReserved: 'Unexpected reserved word', - UnexpectedString: 'Unexpected string', - UnexpectedTemplate: 'Unexpected quasi %0', - UnexpectedToken: 'Unexpected token %0', - UnexpectedTokenIllegal: 'Unexpected token ILLEGAL', - UnknownLabel: 'Undefined label \'%0\'', - UnterminatedRegExp: 'Invalid regular expression: missing /' - }; + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + // Error messages should be identical to V8. + exports.Messages = { + BadGetterArity: 'Getter must not have any formal parameters', + BadSetterArity: 'Setter must have exactly one formal parameter', + BadSetterRestParameter: 'Setter function argument must not be a rest parameter', + ConstructorIsAsync: 'Class constructor may not be an async method', + ConstructorSpecialMethod: 'Class constructor may not be an accessor', + DeclarationMissingInitializer: 'Missing initializer in %0 declaration', + DefaultRestParameter: 'Unexpected token =', + DuplicateBinding: 'Duplicate binding %0', + DuplicateConstructor: 'A class may only have one constructor', + DuplicateProtoProperty: 'Duplicate __proto__ fields are not allowed in object literals', + ForInOfLoopInitializer: '%0 loop variable declaration may not have an initializer', + GeneratorInLegacyContext: 'Generator declarations are not allowed in legacy contexts', + IllegalBreak: 'Illegal break statement', + IllegalContinue: 'Illegal continue statement', + IllegalExportDeclaration: 'Unexpected token', + IllegalImportDeclaration: 'Unexpected token', + IllegalLanguageModeDirective: 'Illegal \'use strict\' directive in function with non-simple parameter list', + IllegalReturn: 'Illegal return statement', + InvalidEscapedReservedWord: 'Keyword must not contain escaped characters', + InvalidHexEscapeSequence: 'Invalid hexadecimal escape sequence', + InvalidLHSInAssignment: 'Invalid left-hand side in assignment', + InvalidLHSInForIn: 'Invalid left-hand side in for-in', + InvalidLHSInForLoop: 'Invalid left-hand side in for-loop', + InvalidModuleSpecifier: 'Unexpected token', + InvalidRegExp: 'Invalid regular expression', + LetInLexicalBinding: 'let is disallowed as a lexically bound name', + MissingFromClause: 'Unexpected token', + MultipleDefaultsInSwitch: 'More than one default clause in switch statement', + NewlineAfterThrow: 'Illegal newline after throw', + NoAsAfterImportNamespace: 'Unexpected token', + NoCatchOrFinally: 'Missing catch or finally after try', + ParameterAfterRestParameter: 'Rest parameter must be last formal parameter', + Redeclaration: '%0 \'%1\' has already been declared', + StaticPrototype: 'Classes may not have static property named prototype', + StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode', + StrictDelete: 'Delete of an unqualified identifier in strict mode.', + StrictFunction: 'In strict mode code, functions can only be declared at top level or inside a block', + StrictFunctionName: 'Function name may not be eval or arguments in strict mode', + StrictLHSAssignment: 'Assignment to eval or arguments is not allowed in strict mode', + StrictLHSPostfix: 'Postfix increment/decrement may not have eval or arguments operand in strict mode', + StrictLHSPrefix: 'Prefix increment/decrement may not have eval or arguments operand in strict mode', + StrictModeWith: 'Strict mode code may not include a with statement', + StrictOctalLiteral: 'Octal literals are not allowed in strict mode.', + StrictParamDupe: 'Strict mode function may not have duplicate parameter names', + StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode', + StrictReservedWord: 'Use of future reserved word in strict mode', + StrictVarName: 'Variable name may not be eval or arguments in strict mode', + TemplateOctalLiteral: 'Octal literals are not allowed in template strings.', + UnexpectedEOS: 'Unexpected end of input', + UnexpectedIdentifier: 'Unexpected identifier', + UnexpectedNumber: 'Unexpected number', + UnexpectedReserved: 'Unexpected reserved word', + UnexpectedString: 'Unexpected string', + UnexpectedTemplate: 'Unexpected quasi %0', + UnexpectedToken: 'Unexpected token %0', + UnexpectedTokenIllegal: 'Unexpected token ILLEGAL', + UnknownLabel: 'Undefined label \'%0\'', + UnterminatedRegExp: 'Invalid regular expression: missing /' + }; /***/ }, /* 12 */ /***/ function(module, exports, __webpack_require__) { - "use strict"; - Object.defineProperty(exports, "__esModule", { value: true }); - var assert_1 = __webpack_require__(9); - var character_1 = __webpack_require__(4); - var messages_1 = __webpack_require__(11); - function hexValue(ch) { - return '0123456789abcdef'.indexOf(ch.toLowerCase()); - } - function octalValue(ch) { - return '01234567'.indexOf(ch); - } - var Scanner = (function () { - function Scanner(code, handler) { - this.source = code; - this.errorHandler = handler; - this.trackComment = false; - this.length = code.length; - this.index = 0; - this.lineNumber = (code.length > 0) ? 1 : 0; - this.lineStart = 0; - this.curlyStack = []; - } - Scanner.prototype.saveState = function () { - return { - index: this.index, - lineNumber: this.lineNumber, - lineStart: this.lineStart - }; - }; - Scanner.prototype.restoreState = function (state) { - this.index = state.index; - this.lineNumber = state.lineNumber; - this.lineStart = state.lineStart; - }; - Scanner.prototype.eof = function () { - return this.index >= this.length; - }; - Scanner.prototype.throwUnexpectedToken = function (message) { - if (message === void 0) { message = messages_1.Messages.UnexpectedTokenIllegal; } - return this.errorHandler.throwError(this.index, this.lineNumber, this.index - this.lineStart + 1, message); - }; - Scanner.prototype.tolerateUnexpectedToken = function (message) { - if (message === void 0) { message = messages_1.Messages.UnexpectedTokenIllegal; } - this.errorHandler.tolerateError(this.index, this.lineNumber, this.index - this.lineStart + 1, message); - }; - // https://tc39.github.io/ecma262/#sec-comments - Scanner.prototype.skipSingleLineComment = function (offset) { - var comments = []; - var start, loc; - if (this.trackComment) { - comments = []; - start = this.index - offset; - loc = { - start: { - line: this.lineNumber, - column: this.index - this.lineStart - offset - }, - end: {} - }; - } - while (!this.eof()) { - var ch = this.source.charCodeAt(this.index); - ++this.index; - if (character_1.Character.isLineTerminator(ch)) { - if (this.trackComment) { - loc.end = { - line: this.lineNumber, - column: this.index - this.lineStart - 1 - }; - var entry = { - multiLine: false, - slice: [start + offset, this.index - 1], - range: [start, this.index - 1], - loc: loc - }; - comments.push(entry); - } - if (ch === 13 && this.source.charCodeAt(this.index) === 10) { - ++this.index; - } - ++this.lineNumber; - this.lineStart = this.index; - return comments; - } - } - if (this.trackComment) { - loc.end = { - line: this.lineNumber, - column: this.index - this.lineStart - }; - var entry = { - multiLine: false, - slice: [start + offset, this.index], - range: [start, this.index], - loc: loc - }; - comments.push(entry); - } - return comments; - }; - Scanner.prototype.skipMultiLineComment = function () { - var comments = []; - var start, loc; - if (this.trackComment) { - comments = []; - start = this.index - 2; - loc = { - start: { - line: this.lineNumber, - column: this.index - this.lineStart - 2 - }, - end: {} - }; - } - while (!this.eof()) { - var ch = this.source.charCodeAt(this.index); - if (character_1.Character.isLineTerminator(ch)) { - if (ch === 0x0D && this.source.charCodeAt(this.index + 1) === 0x0A) { - ++this.index; - } - ++this.lineNumber; - ++this.index; - this.lineStart = this.index; - } - else if (ch === 0x2A) { - // Block comment ends with '*/'. - if (this.source.charCodeAt(this.index + 1) === 0x2F) { - this.index += 2; - if (this.trackComment) { - loc.end = { - line: this.lineNumber, - column: this.index - this.lineStart - }; - var entry = { - multiLine: true, - slice: [start + 2, this.index - 2], - range: [start, this.index], - loc: loc - }; - comments.push(entry); - } - return comments; - } - ++this.index; - } - else { - ++this.index; - } - } - // Ran off the end of the file - the whole thing is a comment - if (this.trackComment) { - loc.end = { - line: this.lineNumber, - column: this.index - this.lineStart - }; - var entry = { - multiLine: true, - slice: [start + 2, this.index], - range: [start, this.index], - loc: loc - }; - comments.push(entry); - } - this.tolerateUnexpectedToken(); - return comments; - }; - Scanner.prototype.scanComments = function () { - var comments; - if (this.trackComment) { - comments = []; - } - var start = (this.index === 0); - while (!this.eof()) { - var ch = this.source.charCodeAt(this.index); - if (character_1.Character.isWhiteSpace(ch)) { - ++this.index; - } - else if (character_1.Character.isLineTerminator(ch)) { - ++this.index; - if (ch === 0x0D && this.source.charCodeAt(this.index) === 0x0A) { - ++this.index; - } - ++this.lineNumber; - this.lineStart = this.index; - start = true; - } - else if (ch === 0x2F) { - ch = this.source.charCodeAt(this.index + 1); - if (ch === 0x2F) { - this.index += 2; - var comment = this.skipSingleLineComment(2); - if (this.trackComment) { - comments = comments.concat(comment); - } - start = true; - } - else if (ch === 0x2A) { - this.index += 2; - var comment = this.skipMultiLineComment(); - if (this.trackComment) { - comments = comments.concat(comment); - } - } - else { - break; - } - } - else if (start && ch === 0x2D) { - // U+003E is '>' - if ((this.source.charCodeAt(this.index + 1) === 0x2D) && (this.source.charCodeAt(this.index + 2) === 0x3E)) { - // '-->' is a single-line comment - this.index += 3; - var comment = this.skipSingleLineComment(3); - if (this.trackComment) { - comments = comments.concat(comment); - } - } - else { - break; - } - } - else if (ch === 0x3C) { - if (this.source.slice(this.index + 1, this.index + 4) === '!--') { - this.index += 4; // `' is a single-line comment + this.index += 3; + var comment = this.skipSingleLineComment(3); + if (this.trackComment) { + comments = comments.concat(comment); + } + } + else { + break; + } + } + else if (ch === 0x3C && !this.isModule) { + if (this.source.slice(this.index + 1, this.index + 4) === '!--') { + this.index += 4; // `