esprima
Version:
ECMAScript parsing infrastructure for multipurpose analysis
667 lines (661 loc) • 226 kB
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<title>Esprima: Coverage Analysis Report</title>
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span.uncovered {
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<h1>Coverage Analysis <small>ensures systematic exercise of the parser</small></h1>
<p><strong>Note</strong>: This is not a live (in-browser) code coverage report.
The analysis is <a href="http://code.google.com/p/esprima/wiki/Testing#Code_coverage_test">performed</a> offline
(using <a href="https://github.com/itay/node-cover">node-cover</a>).<br>
Tested revision: <a href='https://github.com/ariya/esprima/commit/ab71a29'>ab71a29</a>
(dated 24 Mar 2012).</p>
<pre>
<span class='covered'>/*
<span class='covered'> Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com></span>
<span class='covered'> Copyright (C) 2012 Mathias Bynens <mathias@qiwi.be></span>
<span class='covered'> Copyright (C) 2012 Joost-Wim Boekesteijn <joost-wim@boekesteijn.nl></span>
<span class='covered'> Copyright (C) 2012 Kris Kowal <kris.kowal@cixar.com></span>
<span class='covered'> Copyright (C) 2012 Yusuke Suzuki <utatane.tea@gmail.com></span>
<span class='covered'> Copyright (C) 2012 Arpad Borsos <arpad.borsos@googlemail.com></span>
<span class='covered'> Copyright (C) 2011 Ariya Hidayat <ariya.hidayat@gmail.com></span>
<span class='covered'> </span>
<span class='covered'> Redistribution and use in source and binary forms, with or without</span>
<span class='covered'> modification, are permitted provided that the following conditions are met:</span>
<span class='covered'> </span>
<span class='covered'> * Redistributions of source code must retain the above copyright</span>
<span class='covered'> notice, this list of conditions and the following disclaimer.</span>
<span class='covered'> * Redistributions in binary form must reproduce the above copyright</span>
<span class='covered'> notice, this list of conditions and the following disclaimer in the</span>
<span class='covered'> documentation and/or other materials provided with the distribution.</span>
<span class='covered'> </span>
<span class='covered'> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"</span>
<span class='covered'> AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE</span>
<span class='covered'> IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE</span>
<span class='covered'> ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY</span>
<span class='covered'> DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES</span>
<span class='covered'> (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span>
<span class='covered'> LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND</span>
<span class='covered'> ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span>
<span class='covered'> (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF</span>
<span class='covered'> THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<span class='covered'> */</span>
<span class='covered'> </span>
<span class='covered'> /*jslint bitwise:true plusplus:true */</span>
<span class='covered'> /*global esprima:true, exports:true,</span>
<span class='covered'> throwError: true, createLiteral: true, generateStatement: true,</span>
<span class='covered'> parseAssignmentExpression: true, parseBlock: true, parseExpression: true,</span>
<span class='covered'> parseFunctionDeclaration: true, parseFunctionExpression: true,</span>
<span class='covered'> parseFunctionSourceElements: true, parseVariableIdentifier: true,</span>
<span class='covered'> parseLeftHandSideExpression: true,</span>
<span class='covered'> parseStatement: true, parseSourceElement: true */</span>
<span class='covered'> </span>
<span class='covered'> (function (exports) {</span>
<span class='covered'> 'use strict';</span>
<span class='covered'> </span>
<span class='covered'> var Token,</span>
<span class='covered'> TokenName,</span>
<span class='covered'> Syntax,</span>
<span class='covered'> PropertyKind,</span>
<span class='covered'> Messages,</span>
<span class='covered'> Regex,</span>
<span class='covered'> source,</span>
<span class='covered'> allowIn,</span>
<span class='covered'> lastParenthesized,</span>
<span class='covered'> strict,</span>
<span class='covered'> index,</span>
<span class='covered'> lineNumber,</span>
<span class='covered'> lineStart,</span>
<span class='covered'> length,</span>
<span class='covered'> buffer,</span>
<span class='covered'> extra,</span>
<span class='covered'> labelSet,</span>
<span class='covered'> inIteration,</span>
<span class='covered'> inSwitch,</span>
<span class='covered'> inFunctionBody;</span>
<span class='covered'> </span>
<span class='covered'> Token = {</span>
<span class='covered'> BooleanLiteral: 1,</span>
<span class='covered'> EOF: 2,</span>
<span class='covered'> Identifier: 3,</span>
<span class='covered'> Keyword: 4,</span>
<span class='covered'> NullLiteral: 5,</span>
<span class='covered'> NumericLiteral: 6,</span>
<span class='covered'> Punctuator: 7,</span>
<span class='covered'> StringLiteral: 8</span>
<span class='covered'> };</span>
<span class='covered'> </span>
<span class='covered'> TokenName = {};</span>
<span class='covered'> TokenName[Token.BooleanLiteral] = 'Boolean';</span>
<span class='covered'> TokenName[Token.EOF] = '<end>';</span>
<span class='covered'> TokenName[Token.Identifier] = 'Identifier';</span>
<span class='covered'> TokenName[Token.Keyword] = 'Keyword';</span>
<span class='covered'> TokenName[Token.NullLiteral] = 'Null';</span>
<span class='covered'> TokenName[Token.NumericLiteral] = 'Numeric';</span>
<span class='covered'> TokenName[Token.Punctuator] = 'Punctuator';</span>
<span class='covered'> TokenName[Token.StringLiteral] = 'String';</span>
<span class='covered'> </span>
<span class='covered'> Syntax = {</span>
<span class='covered'> AssignmentExpression: 'AssignmentExpression',</span>
<span class='covered'> ArrayExpression: 'ArrayExpression',</span>
<span class='covered'> BlockStatement: 'BlockStatement',</span>
<span class='covered'> BinaryExpression: 'BinaryExpression',</span>
<span class='covered'> BreakStatement: 'BreakStatement',</span>
<span class='covered'> CallExpression: 'CallExpression',</span>
<span class='covered'> CatchClause: 'CatchClause',</span>
<span class='covered'> ConditionalExpression: 'ConditionalExpression',</span>
<span class='covered'> ContinueStatement: 'ContinueStatement',</span>
<span class='covered'> DoWhileStatement: 'DoWhileStatement',</span>
<span class='covered'> DebuggerStatement: 'DebuggerStatement',</span>
<span class='covered'> EmptyStatement: 'EmptyStatement',</span>
<span class='covered'> ExpressionStatement: 'ExpressionStatement',</span>
<span class='covered'> ForStatement: 'ForStatement',</span>
<span class='covered'> ForInStatement: 'ForInStatement',</span>
<span class='covered'> FunctionDeclaration: 'FunctionDeclaration',</span>
<span class='covered'> FunctionExpression: 'FunctionExpression',</span>
<span class='covered'> Identifier: 'Identifier',</span>
<span class='covered'> IfStatement: 'IfStatement',</span>
<span class='covered'> Literal: 'Literal',</span>
<span class='covered'> LabeledStatement: 'LabeledStatement',</span>
<span class='covered'> LogicalExpression: 'LogicalExpression',</span>
<span class='covered'> MemberExpression: 'MemberExpression',</span>
<span class='covered'> NewExpression: 'NewExpression',</span>
<span class='covered'> ObjectExpression: 'ObjectExpression',</span>
<span class='covered'> Program: 'Program',</span>
<span class='covered'> Property: 'Property',</span>
<span class='covered'> ReturnStatement: 'ReturnStatement',</span>
<span class='covered'> SequenceExpression: 'SequenceExpression',</span>
<span class='covered'> SwitchStatement: 'SwitchStatement',</span>
<span class='covered'> SwitchCase: 'SwitchCase',</span>
<span class='covered'> ThisExpression: 'ThisExpression',</span>
<span class='covered'> ThrowStatement: 'ThrowStatement',</span>
<span class='covered'> TryStatement: 'TryStatement',</span>
<span class='covered'> UnaryExpression: 'UnaryExpression',</span>
<span class='covered'> UpdateExpression: 'UpdateExpression',</span>
<span class='covered'> VariableDeclaration: 'VariableDeclaration',</span>
<span class='covered'> VariableDeclarator: 'VariableDeclarator',</span>
<span class='covered'> WhileStatement: 'WhileStatement',</span>
<span class='covered'> WithStatement: 'WithStatement'</span>
<span class='covered'> };</span>
<span class='covered'> </span>
<span class='covered'> PropertyKind = {</span>
<span class='covered'> Data: 1,</span>
<span class='covered'> Get: 2,</span>
<span class='covered'> Set: 4</span>
<span class='covered'> };</span>
<span class='covered'> </span>
<span class='covered'> // Error messages should be identical to V8.</span>
<span class='covered'> Messages = {</span>
<span class='covered'> UnexpectedToken: 'Unexpected token %0',</span>
<span class='covered'> UnexpectedNumber: 'Unexpected number',</span>
<span class='covered'> UnexpectedString: 'Unexpected string',</span>
<span class='covered'> UnexpectedIdentifier: 'Unexpected identifier',</span>
<span class='covered'> UnexpectedReserved: 'Unexpected reserved word',</span>
<span class='covered'> UnexpectedEOS: 'Unexpected end of input',</span>
<span class='covered'> NewlineAfterThrow: 'Illegal newline after throw',</span>
<span class='covered'> InvalidRegExp: 'Invalid regular expression',</span>
<span class='covered'> UnterminatedRegExp: 'Invalid regular expression: missing /',</span>
<span class='covered'> InvalidLHSInAssignment: 'Invalid left-hand side in assignment',</span>
<span class='covered'> InvalidLHSInForIn: 'Invalid left-hand side in for-in',</span>
<span class='covered'> NoCatchOrFinally: 'Missing catch or finally after try',</span>
<span class='covered'> UnknownLabel: 'Undefined label \'%0\'',</span>
<span class='covered'> Redeclaration: '%0 \'%1\' has already been declared',</span>
<span class='covered'> IllegalContinue: 'Illegal continue statement',</span>
<span class='covered'> IllegalBreak: 'Illegal break statement',</span>
<span class='covered'> IllegalReturn: 'Illegal return statement',</span>
<span class='covered'> StrictModeWith: 'Strict mode code may not include a with statement',</span>
<span class='covered'> StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode',</span>
<span class='covered'> StrictVarName: 'Variable name may not be eval or arguments in strict mode',</span>
<span class='covered'> StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode',</span>
<span class='covered'> StrictParamDupe: 'Strict mode function may not have duplicate parameter names',</span>
<span class='covered'> StrictFunctionName: 'Function name may not be eval or arguments in strict mode',</span>
<span class='covered'> StrictOctalLiteral: 'Octal literals are not allowed in strict mode.',</span>
<span class='covered'> StrictDelete: 'Delete of an unqualified identifier in strict mode.',</span>
<span class='covered'> StrictDuplicateProperty: 'Duplicate data property in object literal not allowed in strict mode',</span>
<span class='covered'> AccessorDataProperty: 'Object literal may not have data and accessor property with the same name',</span>
<span class='covered'> AccessorGetSet: 'Object literal may not have multiple get/set accessors with the same name',</span>
<span class='covered'> StrictLHSAssignment: 'Assignment to eval or arguments is not allowed in strict mode',</span>
<span class='covered'> StrictLHSPostfix: 'Postfix increment/decrement may not have eval or arguments operand in strict mode',</span>
<span class='covered'> StrictLHSPrefix: 'Prefix increment/decrement may not have eval or arguments operand in strict mode',</span>
<span class='covered'> StrictReservedWord: 'Use of future reserved word in strict mode'</span>
<span class='covered'> };</span>
<span class='covered'> </span>
<span class='covered'> // See also tools/generate-unicode-regex.py.</span>
<span class='covered'> Regex = {</span>
<span class='covered'> NonAsciiIdentifierStart: new RegExp('[\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u0527\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\u08a2-\u08ac\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097f\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\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-\u0c33\u0c35-\u0c39\u0c3d\u0c58\u0c59\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\u0d60\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-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1877\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191c\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19c1-\u19c7\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\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2e2f\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fcc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua697\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa80-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\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]'),</span>
<span class='covered'> NonAsciiIdentifierPart: new RegExp('[\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0300-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u0483-\u0487\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u05d0-\u05ea\u05f0-\u05f2\u0610-\u061a\u0620-\u0669\u066e-\u06d3\u06d5-\u06dc\u06df-\u06e8\u06ea-\u06fc\u06ff\u0710-\u074a\u074d-\u07b1\u07c0-\u07f5\u07fa\u0800-\u082d\u0840-\u085b\u08a0\u08a2-\u08ac\u08e4-\u08fe\u0900-\u0963\u0966-\u096f\u0971-\u0977\u0979-\u097f\u0981-\u0983\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bc-\u09c4\u09c7\u09c8\u09cb-\u09ce\u09d7\u09dc\u09dd\u09df-\u09e3\u09e6-\u09f1\u0a01-\u0a03\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a59-\u0a5c\u0a5e\u0a66-\u0a75\u0a81-\u0a83\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abc-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ad0\u0ae0-\u0ae3\u0ae6-\u0aef\u0b01-\u0b03\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3c-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b5c\u0b5d\u0b5f-\u0b63\u0b66-\u0b6f\u0b71\u0b82\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd0\u0bd7\u0be6-\u0bef\u0c01-\u0c03\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c3d-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c58\u0c59\u0c60-\u0c63\u0c66-\u0c6f\u0c82\u0c83\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbc-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0cde\u0ce0-\u0ce3\u0ce6-\u0cef\u0cf1\u0cf2\u0d02\u0d03\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d-\u0d44\u0d46-\u0d48\u0d4a-\u0d4e\u0d57\u0d60-\u0d63\u0d66-\u0d6f\u0d7a-\u0d7f\u0d82\u0d83\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0df2\u0df3\u0e01-\u0e3a\u0e40-\u0e4e\u0e50-\u0e59\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb9\u0ebb-\u0ebd\u0ec0-\u0ec4\u0ec6\u0ec8-\u0ecd\u0ed0-\u0ed9\u0edc-\u0edf\u0f00\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e-\u0f47\u0f49-\u0f6c\u0f71-\u0f84\u0f86-\u0f97\u0f99-\u0fbc\u0fc6\u1000-\u1049\u1050-\u109d\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u135d-\u135f\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176c\u176e-\u1770\u1772\u1773\u1780-\u17d3\u17d7\u17dc\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u1820-\u1877\u1880-\u18aa\u18b0-\u18f5\u1900-\u191c\u1920-\u192b\u1930-\u193b\u1946-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u19d0-\u19d9\u1a00-\u1a1b\u1a20-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1aa7\u1b00-\u1b4b\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1bf3\u1c00-\u1c37\u1c40-\u1c49\u1c4d-\u1c7d\u1cd0-\u1cd2\u1cd4-\u1cf6\u1d00-\u1de6\u1dfc-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u200c\u200d\u203f\u2040\u2054\u2071\u207f\u2090-\u209c\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d7f-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2de0-\u2dff\u2e2f\u3005-\u3007\u3021-\u302f\u3031-\u3035\u3038-\u303c\u3041-\u3096\u3099\u309a\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fcc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua62b\ua640-\ua66f\ua674-\ua67d\ua67f-\ua697\ua69f-\ua6f1\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua827\ua840-\ua873\ua880-\ua8c4\ua8d0-\ua8d9\ua8e0-\ua8f7\ua8fb\ua900-\ua92d\ua930-\ua953\ua960-\ua97c\ua980-\ua9c0\ua9cf-\ua9d9\uaa00-\uaa36\uaa40-\uaa4d\uaa50-\uaa59\uaa60-\uaa76\uaa7a\uaa7b\uaa80-\uaac2\uaadb-\uaadd\uaae0-\uaaef\uaaf2-\uaaf6\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\uabea\uabec\uabed\uabf0-\uabf9\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe00-\ufe0f\ufe20-\ufe26\ufe33\ufe34\ufe4d-\ufe4f\ufe70-\ufe74\ufe76-\ufefc\uff10-\uff19\uff21-\uff3a\uff3f\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc]')</span>
<span class='covered'> };</span>
<span class='covered'> </span>
<span class='covered'> // Ensure the condition is true, otherwise throw an error.</span>
<span class='covered'> // This is only to have a better contract semantic, i.e. another safety net</span>
<span class='covered'> // to catch a logic error. The condition shall be fulfilled in normal case.</span>
<span class='covered'> // Do NOT use this to enforce a certain condition on any user input.</span>
<span class='covered'> </span>
<span class='covered'> function assert(condition, message) {</span>
<span class='covered'> if (!condition) {</span>
<span class='uncovered'> throw new Error('ASSERT: ' + message);</span>
<span class='covered'> }</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> function sliceSource(from, to) {</span>
<span class='covered'> return source.slice(from, to);</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> if (typeof 'esprima'[0] === 'undefined') {</span>
<span class='uncovered'> sliceSource = function sliceArraySource(from, to) {</span>
<span class='uncovered'> return source.slice(from, to).join('');</span>
<span class='uncovered'> };</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> function isDecimalDigit(ch) {</span>
<span class='covered'> return '0123456789'.indexOf(ch) >= 0;</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> function isHexDigit(ch) {</span>
<span class='covered'> return '0123456789abcdefABCDEF'.indexOf(ch) >= 0;</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> function isOctalDigit(ch) {</span>
<span class='covered'> return '01234567'.indexOf(ch) >= 0;</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> </span>
<span class='covered'> // 7.2 White Space</span>
<span class='covered'> </span>
<span class='covered'> function isWhiteSpace(ch) {</span>
<span class='covered'> return (ch === ' ') || (ch === '\u0009') || (ch === '\u000B') ||</span>
<span class='covered'> (ch === '\u000C') || (ch === '\u00A0') ||</span>
<span class='covered'> (ch.charCodeAt(0) >= 0x1680 &&</span>
<span class='covered'> '\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\uFEFF'.indexOf(ch) >= 0);</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> // 7.3 Line Terminators</span>
<span class='covered'> </span>
<span class='covered'> function isLineTerminator(ch) {</span>
<span class='covered'> return (ch === '\n' || ch === '\r' || ch === '\u2028' || ch === '\u2029');</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> // 7.6 Identifier Names and Identifiers</span>
<span class='covered'> </span>
<span class='covered'> function isIdentifierStart(ch) {</span>
<span class='covered'> return (ch === '$') || (ch === '_') || (ch === '\\') ||</span>
<span class='covered'> (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') ||</span>
<span class='covered'> ((ch.charCodeAt(0) >= 0x80) && Regex.NonAsciiIdentifierStart.test(ch));</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> function isIdentifierPart(ch) {</span>
<span class='covered'> return (ch === '$') || (ch === '_') || (ch === '\\') ||</span>
<span class='covered'> (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') ||</span>
<span class='covered'> ((ch >= '0') && (ch <= '9')) ||</span>
<span class='covered'> ((ch.charCodeAt(0) >= 0x80) && Regex.NonAsciiIdentifierPart.test(ch));</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> // 7.6.1.2 Future Reserved Words</span>
<span class='covered'> </span>
<span class='covered'> function isFutureReservedWord(id) {</span>
<span class='covered'> switch (id) {</span>
<span class='covered'> </span>
<span class='covered'> // Future reserved words.</span>
<span class='covered'> case 'class':</span>
<span class='covered'> case 'enum':</span>
<span class='covered'> case 'export':</span>
<span class='covered'> case 'extends':</span>
<span class='covered'> case 'import':</span>
<span class='covered'> case 'super':</span>
<span class='covered'> return true;</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> return false;</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> function isStrictModeReservedWord(id) {</span>
<span class='covered'> switch (id) {</span>
<span class='covered'> </span>
<span class='covered'> // Strict Mode reserved words.</span>
<span class='covered'> case 'implements':</span>
<span class='covered'> case 'interface':</span>
<span class='covered'> case 'package':</span>
<span class='covered'> case 'private':</span>
<span class='covered'> case 'protected':</span>
<span class='covered'> case 'public':</span>
<span class='covered'> case 'static':</span>
<span class='covered'> case 'yield':</span>
<span class='covered'> case 'let':</span>
<span class='covered'> return true;</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> return false;</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> function isRestrictedWord(id) {</span>
<span class='covered'> return id === 'eval' || id === 'arguments';</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> // 7.6.1.1 Keywords</span>
<span class='covered'> </span>
<span class='covered'> function isKeyword(id) {</span>
<span class='covered'> var keyword = false;</span>
<span class='covered'> switch (id.length) {</span>
<span class='covered'> case 2:</span>
<span class='covered'> keyword = (id === 'if') || (id === 'in') || (id === 'do');</span>
<span class='covered'> break;</span>
<span class='covered'> case 3:</span>
<span class='covered'> keyword = (id === 'var') || (id === 'for') || (id === 'new') || (id === 'try');</span>
<span class='covered'> break;</span>
<span class='covered'> case 4:</span>
<span class='covered'> keyword = (id === 'this') || (id === 'else') || (id === 'case') || (id === 'void') || (id === 'with');</span>
<span class='covered'> break;</span>
<span class='covered'> case 5:</span>
<span class='covered'> keyword = (id === 'while') || (id === 'break') || (id === 'catch') || (id === 'throw');</span>
<span class='covered'> break;</span>
<span class='covered'> case 6:</span>
<span class='covered'> keyword = (id === 'return') || (id === 'typeof') || (id === 'delete') || (id === 'switch');</span>
<span class='covered'> break;</span>
<span class='covered'> case 7:</span>
<span class='covered'> keyword = (id === 'default') || (id === 'finally');</span>
<span class='covered'> break;</span>
<span class='covered'> case 8:</span>
<span class='covered'> keyword = (id === 'function') || (id === 'continue') || (id === 'debugger');</span>
<span class='covered'> break;</span>
<span class='covered'> case 10:</span>
<span class='covered'> keyword = (id === 'instanceof');</span>
<span class='covered'> break;</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> if (keyword) {</span>
<span class='covered'> return true;</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> switch (id) {</span>
<span class='covered'> // Future reserved words.</span>
<span class='covered'> // 'const' is specialized as Keyword in V8.</span>
<span class='covered'> case 'const':</span>
<span class='covered'> return true;</span>
<span class='covered'> </span>
<span class='covered'> // For compatiblity to SpiderMonkey and ES.next</span>
<span class='covered'> case 'yield':</span>
<span class='covered'> case 'let':</span>
<span class='covered'> return true;</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> if (strict && isStrictModeReservedWord(id)) {</span>
<span class='covered'> return true;</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> return isFutureReservedWord(id);</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> // Return the next character and move forward.</span>
<span class='covered'> </span>
<span class='covered'> function nextChar() {</span>
<span class='covered'> return source[index++];</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> // 7.4 Comments</span>
<span class='covered'> </span>
<span class='covered'> function skipComment() {</span>
<span class='covered'> var ch, blockComment, lineComment;</span>
<span class='covered'> </span>
<span class='covered'> blockComment = false;</span>
<span class='covered'> lineComment = false;</span>
<span class='covered'> </span>
<span class='covered'> while (index < length) {</span>
<span class='covered'> ch = source[index];</span>
<span class='covered'> </span>
<span class='covered'> if (lineComment) {</span>
<span class='covered'> ch = nextChar();</span>
<span class='covered'> if (isLineTerminator(ch)) {</span>
<span class='covered'> lineComment = false;</span>
<span class='covered'> if (ch === '\r' && source[index] === '\n') {</span>
<span class='covered'> ++index;</span>
<span class='covered'> }</span>
<span class='covered'> ++lineNumber;</span>
<span class='covered'> lineStart = index;</span>
<span class='covered'> }</span>
<span class='covered'> } else if (blockComment) {</span>
<span class='covered'> if (isLineTerminator(ch)) {</span>
<span class='covered'> if (ch === '\r' && source[index + 1] === '\n') {</span>
<span class='covered'> ++index;</span>
<span class='covered'> }</span>
<span class='covered'> ++lineNumber;</span>
<span class='covered'> ++index;</span>
<span class='covered'> lineStart = index;</span>
<span class='covered'> if (index >= length) {</span>
<span class='covered'> throwError({}, Messages.UnexpectedToken, 'ILLEGAL');</span>
<span class='covered'> }</span>
<span class='covered'> } else {</span>
<span class='covered'> ch = nextChar();</span>
<span class='covered'> if (index >= length) {</span>
<span class='covered'> throwError({}, Messages.UnexpectedToken, 'ILLEGAL');</span>
<span class='covered'> }</span>
<span class='covered'> if (ch === '*') {</span>
<span class='covered'> ch = source[index];</span>
<span class='covered'> if (ch === '/') {</span>
<span class='covered'> ++index;</span>
<span class='covered'> blockComment = false;</span>
<span class='covered'> }</span>
<span class='covered'> }</span>
<span class='covered'> }</span>
<span class='covered'> } else if (ch === '/') {</span>
<span class='covered'> ch = source[index + 1];</span>
<span class='covered'> if (ch === '/') {</span>
<span class='covered'> index += 2;</span>
<span class='covered'> lineComment = true;</span>
<span class='covered'> } else if (ch === '*') {</span>
<span class='covered'> index += 2;</span>
<span class='covered'> blockComment = true;</span>
<span class='covered'> if (index >= length) {</span>
<span class='covered'> throwError({}, Messages.UnexpectedToken, 'ILLEGAL');</span>
<span class='covered'> }</span>
<span class='covered'> } else {</span>
<span class='covered'> break;</span>
<span class='covered'> }</span>
<span class='covered'> } else if (isWhiteSpace(ch)) {</span>
<span class='covered'> ++index;</span>
<span class='covered'> } else if (isLineTerminator(ch)) {</span>
<span class='covered'> ++index;</span>
<span class='covered'> if (ch === '\r' && source[index] === '\n') {</span>
<span class='covered'> ++index;</span>
<span class='covered'> }</span>
<span class='covered'> ++lineNumber;</span>
<span class='covered'> lineStart = index;</span>
<span class='covered'> } else {</span>
<span class='covered'> break;</span>
<span class='covered'> }</span>
<span class='covered'> }</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> function scanHexEscape(prefix) {</span>
<span class='covered'> var i, len, ch, code = 0;</span>
<span class='covered'> </span>
<span class='covered'> len = (prefix === 'u') ? 4 : 2;</span>
<span class='covered'> for (i = 0; i < len; ++i) {</span>
<span class='covered'> if (index < length && isHexDigit(source[index])) {</span>
<span class='covered'> ch = nextChar();</span>
<span class='covered'> code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase());</span>
<span class='covered'> } else {</span>
<span class='covered'> return '';</span>
<span class='covered'> }</span>
<span class='covered'> }</span>
<span class='covered'> return String.fromCharCode(code);</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> function scanIdentifier() {</span>
<span class='covered'> var ch, start, id, restore;</span>
<span class='covered'> </span>
<span class='covered'> ch = source[index];</span>
<span class='covered'> if (!isIdentifierStart(ch)) {</span>
<span class='covered'> return;</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> start = index;</span>
<span class='covered'> if (ch === '\\') {</span>
<span class='covered'> ++index;</span>
<span class='covered'> if (source[index] !== 'u') {</span>
<span class='covered'> return;</span>
<span class='covered'> }</span>
<span class='covered'> ++index;</span>
<span class='covered'> restore = index;</span>
<span class='covered'> ch = scanHexEscape('u');</span>
<span class='covered'> if (ch) {</span>
<span class='covered'> if (ch === '\\' || !isIdentifierStart(ch)) {</span>
<span class='covered'> return;</span>
<span class='covered'> }</span>
<span class='covered'> id = ch;</span>
<span class='covered'> } else {</span>
<span class='covered'> index = restore;</span>
<span class='covered'> id = 'u';</span>
<span class='covered'> }</span>
<span class='covered'> } else {</span>
<span class='covered'> id = nextChar();</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> while (index < length) {</span>
<span class='covered'> ch = source[index];</span>
<span class='covered'> if (!isIdentifierPart(ch)) {</span>
<span class='covered'> break;</span>
<span class='covered'> }</span>
<span class='covered'> if (ch === '\\') {</span>
<span class='covered'> ++index;</span>
<span class='covered'> if (source[index] !== 'u') {</span>
<span class='covered'> return;</span>
<span class='covered'> }</span>
<span class='covered'> ++index;</span>
<span class='covered'> restore = index;</span>
<span class='covered'> ch = scanHexEscape('u');</span>
<span class='covered'> if (ch) {</span>
<span class='covered'> if (ch === '\\' || !isIdentifierPart(ch)) {</span>
<span class='covered'> return;</span>
<span class='covered'> }</span>
<span class='covered'> id += ch;</span>
<span class='covered'> } else {</span>
<span class='covered'> index = restore;</span>
<span class='covered'> id += 'u';</span>
<span class='covered'> }</span>
<span class='covered'> } else {</span>
<span class='covered'> id += nextChar();</span>
<span class='covered'> }</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> // There is no keyword or literal with only one character.</span>
<span class='covered'> // Thus, it must be an identifier.</span>
<span class='covered'> if (id.length === 1) {</span>
<span class='covered'> return {</span>
<span class='covered'> type: Token.Identifier,</span>
<span class='covered'> value: id,</span>
<span class='covered'> lineNumber: lineNumber,</span>
<span class='covered'> lineStart: lineStart,</span>
<span class='covered'> range: [start, index]</span>
<span class='covered'> };</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> if (isKeyword(id)) {</span>
<span class='covered'> return {</span>
<span class='covered'> type: Token.Keyword,</span>
<span class='covered'> value: id,</span>
<span class='covered'> lineNumber: lineNumber,</span>
<span class='covered'> lineStart: lineStart,</span>
<span class='covered'> range: [start, index]</span>
<span class='covered'> };</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> // 7.8.1 Null Literals</span>
<span class='covered'> </span>
<span class='covered'> if (id === 'null') {</span>
<span class='covered'> return {</span>
<span class='covered'> type: Token.NullLiteral,</span>
<span class='covered'> value: id,</span>
<span class='covered'> lineNumber: lineNumber,</span>
<span class='covered'> lineStart: lineStart,</span>
<span class='covered'> range: [start, index]</span>
<span class='covered'> };</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> // 7.8.2 Boolean Literals</span>
<span class='covered'> </span>
<span class='covered'> if (id === 'true' || id === 'false') {</span>
<span class='covered'> return {</span>
<span class='covered'> type: Token.BooleanLiteral,</span>
<span class='covered'> value: id,</span>
<span class='covered'> lineNumber: lineNumber,</span>
<span class='covered'> lineStart: lineStart,</span>
<span class='covered'> range: [start, index]</span>
<span class='covered'> };</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> return {</span>
<span class='covered'> type: Token.Identifier,</span>
<span class='covered'> value: id,</span>
<span class='covered'> lineNumber: lineNumber,</span>
<span class='covered'> lineStart: lineStart,</span>
<span class='covered'> range: [start, index]</span>
<span class='covered'> };</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> // 7.7 Punctuators</span>
<span class='covered'> </span>
<span class='covered'> function scanPunctuator() {</span>
<span class='covered'> var start = index,</span>
<span class='covered'> ch1 = source[index],</span>
<span class='covered'> ch2,</span>
<span class='covered'> ch3,</span>
<span class='covered'> ch4;</span>
<span class='covered'> </span>
<span class='covered'> // Check for most common single-character punctuators.</span>
<span class='covered'> </span>
<span class='covered'> if (ch1 === ';' || ch1 === '{' || ch1 === '}') {</span>
<span class='covered'> ++index;</span>
<span class='covered'> return {</span>
<span class='covered'> type: Token.Punctuator,</span>
<span class='covered'> value: ch1,</span>
<span class='covered'> lineNumber: lineNumber,</span>
<span class='covered'> lineStart: lineStart,</span>
<span class='covered'> range: [start, index]</span>
<span class='covered'> };</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> if (ch1 === ',' || ch1 === '(' || ch1 === ')') {</span>
<span class='covered'> ++index;</span>
<span class='covered'> return {</span>
<span class='covered'> type: Token.Punctuator,</span>
<span class='covered'> value: ch1,</span>
<span class='covered'> lineNumber: lineNumber,</span>
<span class='covered'> lineStart: lineStart,</span>
<span class='covered'> range: [start, index]</span>
<span class='covered'> };</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> // Dot (.) can also start a floating-point number, hence the need</span>
<span class='covered'> // to check the next character.</span>
<span class='covered'> </span>
<span class='covered'> ch2 = source[index + 1];</span>
<span class='covered'> if (ch1 === '.' && !isDecimalDigit(ch2)) {</span>
<span class='covered'> return {</span>
<span class='covered'> type: Token.Punctuator,</span>
<span class='covered'> value: nextChar(),</span>
<span class='covered'> lineNumber: lineNumber,</span>
<span class='covered'> lineStart: lineStart,</span>
<span class='covered'> range: [start, index]</span>
<span class='covered'> };</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> // Peek more characters.</span>
<span class='covered'> </span>
<span class='covered'> ch3 = source[index + 2];</span>
<span class='covered'> ch4 = source[index + 3];</span>
<span class='covered'> </span>
<span class='covered'> // 4-character punctuator: >>>=</span>
<span class='covered'> </span>
<span class='covered'> if (ch1 === '>' && ch2 === '>' && ch3 === '>') {</span>
<span class='covered'> if (ch4 === '=') {</span>
<span class='covered'> index += 4;</span>
<span class='covered'> return {</span>
<span class='covered'> type: Token.Punctuator,</span>
<span class='covered'> value: '>>>=',</span>
<span class='covered'> lineNumber: lineNumber,</span>
<span class='covered'> lineStart: lineStart,</span>
<span class='covered'> range: [start, index]</span>
<span class='covered'> };</span>
<span class='covered'> }</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> // 3-character punctuators: === !== >>> <<= >>=</span>
<span class='covered'> </span>
<span class='covered'> if (ch1 === '=' && ch2 === '=' && ch3 === '=') {</span>
<span class='covered'> index += 3;</span>
<span class='covered'> return {</span>
<span class='covered'> type: Token.Punctuator,</span>
<span class='covered'> value: '===',</span>
<span class='covered'> lineNumber: lineNumber,</span>
<span class='covered'> lineStart: lineStart,</span>
<span class='covered'> range: [start, index]</span>
<span class='covered'> };</span>
<span class='covered'> }</span>
<span class='covered'> </span>
<span class='covered'> if (ch1 === '!' && ch2 === '=' && ch3 === '=') {</span>
<span class='covered'> index += 3;</span>
<span class='covered'> return {</span>
<span class='covered'> type: Token.Punctuator,</span>
<span class='covered'> value: '!==',</span>
<span class='covered'>