| /*! blanket - v1.1.5 */ |
| (function(define){ |
| |
| /* |
| Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com> |
| Copyright (C) 2012 Mathias Bynens <mathias@qiwi.be> |
| Copyright (C) 2012 Joost-Wim Boekesteijn <joost-wim@boekesteijn.nl> |
| Copyright (C) 2012 Kris Kowal <kris.kowal@cixar.com> |
| Copyright (C) 2012 Yusuke Suzuki <utatane.tea@gmail.com> |
| Copyright (C) 2012 Arpad Borsos <arpad.borsos@googlemail.com> |
| Copyright (C) 2011 Ariya Hidayat <ariya.hidayat@gmail.com> |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions are met: |
| |
| * Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| * Redistributions in binary form must reproduce the above copyright |
| notice, this list of conditions and the following disclaimer in the |
| documentation and/or other materials provided with the distribution. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY |
| DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /*jslint bitwise:true plusplus:true */ |
| /*global esprima:true, define:true, exports:true, window: true, |
| throwError: true, createLiteral: true, generateStatement: true, |
| parseAssignmentExpression: true, parseBlock: true, parseExpression: true, |
| parseFunctionDeclaration: true, parseFunctionExpression: true, |
| parseFunctionSourceElements: true, parseVariableIdentifier: true, |
| parseLeftHandSideExpression: true, |
| parseStatement: true, parseSourceElement: true */ |
| |
| (function (root, factory) { |
| 'use strict'; |
| |
| // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js, |
| // Rhino, and plain browser loading. |
| if (typeof define === 'function' && define.amd) { |
| define(['exports'], factory); |
| } else if (typeof exports !== 'undefined') { |
| factory(exports); |
| } else { |
| factory((root.esprima = {})); |
| } |
| }(this, function (exports) { |
| 'use strict'; |
| |
| var Token, |
| TokenName, |
| Syntax, |
| PropertyKind, |
| Messages, |
| Regex, |
| source, |
| strict, |
| index, |
| lineNumber, |
| lineStart, |
| length, |
| buffer, |
| state, |
| extra; |
| |
| Token = { |
| BooleanLiteral: 1, |
| EOF: 2, |
| Identifier: 3, |
| Keyword: 4, |
| NullLiteral: 5, |
| NumericLiteral: 6, |
| Punctuator: 7, |
| StringLiteral: 8 |
| }; |
| |
| TokenName = {}; |
| TokenName[Token.BooleanLiteral] = 'Boolean'; |
| TokenName[Token.EOF] = '<end>'; |
| TokenName[Token.Identifier] = 'Identifier'; |
| TokenName[Token.Keyword] = 'Keyword'; |
| TokenName[Token.NullLiteral] = 'Null'; |
| TokenName[Token.NumericLiteral] = 'Numeric'; |
| TokenName[Token.Punctuator] = 'Punctuator'; |
| TokenName[Token.StringLiteral] = 'String'; |
| |
| Syntax = { |
| AssignmentExpression: 'AssignmentExpression', |
| ArrayExpression: 'ArrayExpression', |
| BlockStatement: 'BlockStatement', |
| BinaryExpression: 'BinaryExpression', |
| BreakStatement: 'BreakStatement', |
| CallExpression: 'CallExpression', |
| CatchClause: 'CatchClause', |
| ConditionalExpression: 'ConditionalExpression', |
| ContinueStatement: 'ContinueStatement', |
| DoWhileStatement: 'DoWhileStatement', |
| DebuggerStatement: 'DebuggerStatement', |
| EmptyStatement: 'EmptyStatement', |
| ExpressionStatement: 'ExpressionStatement', |
| ForStatement: 'ForStatement', |
| ForInStatement: 'ForInStatement', |
| FunctionDeclaration: 'FunctionDeclaration', |
| FunctionExpression: 'FunctionExpression', |
| Identifier: 'Identifier', |
| IfStatement: 'IfStatement', |
| Literal: 'Literal', |
| LabeledStatement: 'LabeledStatement', |
| LogicalExpression: 'LogicalExpression', |
| MemberExpression: 'MemberExpression', |
| NewExpression: 'NewExpression', |
| ObjectExpression: 'ObjectExpression', |
| Program: 'Program', |
| Property: 'Property', |
| ReturnStatement: 'ReturnStatement', |
| SequenceExpression: 'SequenceExpression', |
| SwitchStatement: 'SwitchStatement', |
| SwitchCase: 'SwitchCase', |
| ThisExpression: 'ThisExpression', |
| ThrowStatement: 'ThrowStatement', |
| TryStatement: 'TryStatement', |
| UnaryExpression: 'UnaryExpression', |
| UpdateExpression: 'UpdateExpression', |
| VariableDeclaration: 'VariableDeclaration', |
| VariableDeclarator: 'VariableDeclarator', |
| WhileStatement: 'WhileStatement', |
| WithStatement: 'WithStatement' |
| }; |
| |
| PropertyKind = { |
| Data: 1, |
| Get: 2, |
| Set: 4 |
| }; |
| |
| // 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', |
| 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', |
| 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.', |
| StrictDuplicateProperty: 'Duplicate data property in object literal not allowed in strict mode', |
| AccessorDataProperty: 'Object literal may not have data and accessor property with the same name', |
| AccessorGetSet: 'Object literal may not have multiple get/set accessors with the same name', |
| 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' |
| }; |
| |
| // See also tools/generate-unicode-regex.py. |
| Regex = { |
| 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]'), |
| NonAsciiIdentifierPart: new 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\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc]') |
| }; |
| |
| // 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) { |
| if (!condition) { |
| throw new Error('ASSERT: ' + message); |
| } |
| } |
| |
| function sliceSource(from, to) { |
| return source.slice(from, to); |
| } |
| |
| if (typeof 'esprima'[0] === 'undefined') { |
| sliceSource = function sliceArraySource(from, to) { |
| return source.slice(from, to).join(''); |
| }; |
| } |
| |
| function isDecimalDigit(ch) { |
| return '0123456789'.indexOf(ch) >= 0; |
| } |
| |
| function isHexDigit(ch) { |
| return '0123456789abcdefABCDEF'.indexOf(ch) >= 0; |
| } |
| |
| function isOctalDigit(ch) { |
| return '01234567'.indexOf(ch) >= 0; |
| } |
| |
| |
| // 7.2 White Space |
| |
| function isWhiteSpace(ch) { |
| return (ch === ' ') || (ch === '\u0009') || (ch === '\u000B') || |
| (ch === '\u000C') || (ch === '\u00A0') || |
| (ch.charCodeAt(0) >= 0x1680 && |
| '\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\uFEFF'.indexOf(ch) >= 0); |
| } |
| |
| // 7.3 Line Terminators |
| |
| function isLineTerminator(ch) { |
| return (ch === '\n' || ch === '\r' || ch === '\u2028' || ch === '\u2029'); |
| } |
| |
| // 7.6 Identifier Names and Identifiers |
| |
| function isIdentifierStart(ch) { |
| return (ch === '$') || (ch === '_') || (ch === '\\') || |
| (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || |
| ((ch.charCodeAt(0) >= 0x80) && Regex.NonAsciiIdentifierStart.test(ch)); |
| } |
| |
| function isIdentifierPart(ch) { |
| return (ch === '$') || (ch === '_') || (ch === '\\') || |
| (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || |
| ((ch >= '0') && (ch <= '9')) || |
| ((ch.charCodeAt(0) >= 0x80) && Regex.NonAsciiIdentifierPart.test(ch)); |
| } |
| |
| // 7.6.1.2 Future Reserved Words |
| |
| function isFutureReservedWord(id) { |
| switch (id) { |
| |
| // Future reserved words. |
| case 'class': |
| case 'enum': |
| case 'export': |
| case 'extends': |
| case 'import': |
| case 'super': |
| return true; |
| } |
| |
| return false; |
| } |
| |
| function isStrictModeReservedWord(id) { |
| switch (id) { |
| |
| // Strict Mode reserved words. |
| case 'implements': |
| case 'interface': |
| case 'package': |
| case 'private': |
| case 'protected': |
| case 'public': |
| case 'static': |
| case 'yield': |
| case 'let': |
| return true; |
| } |
| |
| return false; |
| } |
| |
| function isRestrictedWord(id) { |
| return id === 'eval' || id === 'arguments'; |
| } |
| |
| // 7.6.1.1 Keywords |
| |
| function isKeyword(id) { |
| var keyword = false; |
| switch (id.length) { |
| case 2: |
| keyword = (id === 'if') || (id === 'in') || (id === 'do'); |
| break; |
| case 3: |
| keyword = (id === 'var') || (id === 'for') || (id === 'new') || (id === 'try'); |
| break; |
| case 4: |
| keyword = (id === 'this') || (id === 'else') || (id === 'case') || (id === 'void') || (id === 'with'); |
| break; |
| case 5: |
| keyword = (id === 'while') || (id === 'break') || (id === 'catch') || (id === 'throw'); |
| break; |
| case 6: |
| keyword = (id === 'return') || (id === 'typeof') || (id === 'delete') || (id === 'switch'); |
| break; |
| case 7: |
| keyword = (id === 'default') || (id === 'finally'); |
| break; |
| case 8: |
| keyword = (id === 'function') || (id === 'continue') || (id === 'debugger'); |
| break; |
| case 10: |
| keyword = (id === 'instanceof'); |
| break; |
| } |
| |
| if (keyword) { |
| return true; |
| } |
| |
| switch (id) { |
| // Future reserved words. |
| // 'const' is specialized as Keyword in V8. |
| case 'const': |
| return true; |
| |
| // For compatiblity to SpiderMonkey and ES.next |
| case 'yield': |
| case 'let': |
| return true; |
| } |
| |
| if (strict && isStrictModeReservedWord(id)) { |
| return true; |
| } |
| |
| return isFutureReservedWord(id); |
| } |
| |
| // 7.4 Comments |
| |
| function skipComment() { |
| var ch, blockComment, lineComment; |
| |
| blockComment = false; |
| lineComment = false; |
| |
| while (index < length) { |
| ch = source[index]; |
| |
| if (lineComment) { |
| ch = source[index++]; |
| if (isLineTerminator(ch)) { |
| lineComment = false; |
| if (ch === '\r' && source[index] === '\n') { |
| ++index; |
| } |
| ++lineNumber; |
| lineStart = index; |
| } |
| } else if (blockComment) { |
| if (isLineTerminator(ch)) { |
| if (ch === '\r' && source[index + 1] === '\n') { |
| ++index; |
| } |
| ++lineNumber; |
| ++index; |
| lineStart = index; |
| if (index >= length) { |
| throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); |
| } |
| } else { |
| ch = source[index++]; |
| if (index >= length) { |
| throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); |
| } |
| if (ch === '*') { |
| ch = source[index]; |
| if (ch === '/') { |
| ++index; |
| blockComment = false; |
| } |
| } |
| } |
| } else if (ch === '/') { |
| ch = source[index + 1]; |
| if (ch === '/') { |
| index += 2; |
| lineComment = true; |
| } else if (ch === '*') { |
| index += 2; |
| blockComment = true; |
| if (index >= length) { |
| throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); |
| } |
| } else { |
| break; |
| } |
| } else if (isWhiteSpace(ch)) { |
| ++index; |
| } else if (isLineTerminator(ch)) { |
| ++index; |
| if (ch === '\r' && source[index] === '\n') { |
| ++index; |
| } |
| ++lineNumber; |
| lineStart = index; |
| } 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 scanIdentifier() { |
| var ch, start, id, restore; |
| |
| ch = source[index]; |
| if (!isIdentifierStart(ch)) { |
| return; |
| } |
| |
| start = index; |
| if (ch === '\\') { |
| ++index; |
| if (source[index] !== 'u') { |
| return; |
| } |
| ++index; |
| restore = index; |
| ch = scanHexEscape('u'); |
| if (ch) { |
| if (ch === '\\' || !isIdentifierStart(ch)) { |
| return; |
| } |
| id = ch; |
| } else { |
| index = restore; |
| id = 'u'; |
| } |
| } else { |
| id = source[index++]; |
| } |
| |
| while (index < length) { |
| ch = source[index]; |
| if (!isIdentifierPart(ch)) { |
| break; |
| } |
| if (ch === '\\') { |
| ++index; |
| if (source[index] !== 'u') { |
| return; |
| } |
| ++index; |
| restore = index; |
| ch = scanHexEscape('u'); |
| if (ch) { |
| if (ch === '\\' || !isIdentifierPart(ch)) { |
| return; |
| } |
| id += ch; |
| } else { |
| index = restore; |
| id += 'u'; |
| } |
| } else { |
| id += source[index++]; |
| } |
| } |
| |
| // There is no keyword or literal with only one character. |
| // Thus, it must be an identifier. |
| if (id.length === 1) { |
| return { |
| type: Token.Identifier, |
| value: id, |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| if (isKeyword(id)) { |
| return { |
| type: Token.Keyword, |
| value: id, |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| // 7.8.1 Null Literals |
| |
| if (id === 'null') { |
| return { |
| type: Token.NullLiteral, |
| value: id, |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| // 7.8.2 Boolean Literals |
| |
| if (id === 'true' || id === 'false') { |
| return { |
| type: Token.BooleanLiteral, |
| value: id, |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| return { |
| type: Token.Identifier, |
| value: id, |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| // 7.7 Punctuators |
| |
| function scanPunctuator() { |
| var start = index, |
| ch1 = source[index], |
| ch2, |
| ch3, |
| ch4; |
| |
| // Check for most common single-character punctuators. |
| |
| if (ch1 === ';' || ch1 === '{' || ch1 === '}') { |
| ++index; |
| return { |
| type: Token.Punctuator, |
| value: ch1, |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| if (ch1 === ',' || ch1 === '(' || ch1 === ')') { |
| ++index; |
| return { |
| type: Token.Punctuator, |
| value: ch1, |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| // Dot (.) can also start a floating-point number, hence the need |
| // to check the next character. |
| |
| ch2 = source[index + 1]; |
| if (ch1 === '.' && !isDecimalDigit(ch2)) { |
| return { |
| type: Token.Punctuator, |
| value: source[index++], |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| // Peek more characters. |
| |
| ch3 = source[index + 2]; |
| ch4 = source[index + 3]; |
| |
| // 4-character punctuator: >>>= |
| |
| if (ch1 === '>' && ch2 === '>' && ch3 === '>') { |
| if (ch4 === '=') { |
| index += 4; |
| return { |
| type: Token.Punctuator, |
| value: '>>>=', |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| } |
| |
| // 3-character punctuators: === !== >>> <<= >>= |
| |
| if (ch1 === '=' && ch2 === '=' && ch3 === '=') { |
| index += 3; |
| return { |
| type: Token.Punctuator, |
| value: '===', |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| if (ch1 === '!' && ch2 === '=' && ch3 === '=') { |
| index += 3; |
| return { |
| type: Token.Punctuator, |
| value: '!==', |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| if (ch1 === '>' && ch2 === '>' && ch3 === '>') { |
| index += 3; |
| return { |
| type: Token.Punctuator, |
| value: '>>>', |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| if (ch1 === '<' && ch2 === '<' && ch3 === '=') { |
| index += 3; |
| return { |
| type: Token.Punctuator, |
| value: '<<=', |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| if (ch1 === '>' && ch2 === '>' && ch3 === '=') { |
| index += 3; |
| return { |
| type: Token.Punctuator, |
| value: '>>=', |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| // 2-character punctuators: <= >= == != ++ -- << >> && || |
| // += -= *= %= &= |= ^= /= |
| |
| if (ch2 === '=') { |
| if ('<>=!+-*%&|^/'.indexOf(ch1) >= 0) { |
| index += 2; |
| return { |
| type: Token.Punctuator, |
| value: ch1 + ch2, |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| } |
| |
| if (ch1 === ch2 && ('+-<>&|'.indexOf(ch1) >= 0)) { |
| if ('+-<>&|'.indexOf(ch2) >= 0) { |
| index += 2; |
| return { |
| type: Token.Punctuator, |
| value: ch1 + ch2, |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| } |
| |
| // The remaining 1-character punctuators. |
| |
| if ('[]<>+-*%&|^!~?:=/'.indexOf(ch1) >= 0) { |
| return { |
| type: Token.Punctuator, |
| value: source[index++], |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| } |
| |
| // 7.8.3 Numeric Literals |
| |
| function scanNumericLiteral() { |
| var number, start, ch; |
| |
| ch = source[index]; |
| assert(isDecimalDigit(ch) || (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'. |
| if (number === '0') { |
| if (ch === 'x' || ch === 'X') { |
| number += source[index++]; |
| while (index < length) { |
| ch = source[index]; |
| if (!isHexDigit(ch)) { |
| break; |
| } |
| number += source[index++]; |
| } |
| |
| if (number.length <= 2) { |
| // only 0x |
| throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); |
| } |
| |
| if (index < length) { |
| ch = source[index]; |
| if (isIdentifierStart(ch)) { |
| throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); |
| } |
| } |
| return { |
| type: Token.NumericLiteral, |
| value: parseInt(number, 16), |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } else if (isOctalDigit(ch)) { |
| number += source[index++]; |
| while (index < length) { |
| ch = source[index]; |
| if (!isOctalDigit(ch)) { |
| break; |
| } |
| number += source[index++]; |
| } |
| |
| if (index < length) { |
| ch = source[index]; |
| if (isIdentifierStart(ch) || isDecimalDigit(ch)) { |
| throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); |
| } |
| } |
| return { |
| type: Token.NumericLiteral, |
| value: parseInt(number, 8), |
| octal: true, |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| // decimal number starts with '0' such as '09' is illegal. |
| if (isDecimalDigit(ch)) { |
| throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); |
| } |
| } |
| |
| while (index < length) { |
| ch = source[index]; |
| if (!isDecimalDigit(ch)) { |
| break; |
| } |
| number += source[index++]; |
| } |
| } |
| |
| if (ch === '.') { |
| number += source[index++]; |
| while (index < length) { |
| ch = source[index]; |
| if (!isDecimalDigit(ch)) { |
| break; |
| } |
| number += source[index++]; |
| } |
| } |
| |
| if (ch === 'e' || ch === 'E') { |
| number += source[index++]; |
| |
| ch = source[index]; |
| if (ch === '+' || ch === '-') { |
| number += source[index++]; |
| } |
| |
| ch = source[index]; |
| if (isDecimalDigit(ch)) { |
| number += source[index++]; |
| while (index < length) { |
| ch = source[index]; |
| if (!isDecimalDigit(ch)) { |
| break; |
| } |
| number += source[index++]; |
| } |
| } else { |
| ch = 'character ' + ch; |
| if (index >= length) { |
| ch = '<end>'; |
| } |
| throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); |
| } |
| } |
| |
| if (index < length) { |
| ch = source[index]; |
| if (isIdentifierStart(ch)) { |
| throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); |
| } |
| } |
| |
| return { |
| type: Token.NumericLiteral, |
| value: parseFloat(number), |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| // 7.8.4 String Literals |
| |
| function scanStringLiteral() { |
| var str = '', quote, start, ch, code, unescaped, restore, 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 (!isLineTerminator(ch)) { |
| switch (ch) { |
| case 'n': |
| str += '\n'; |
| break; |
| case 'r': |
| str += '\r'; |
| break; |
| case 't': |
| str += '\t'; |
| break; |
| case 'u': |
| case 'x': |
| restore = index; |
| unescaped = scanHexEscape(ch); |
| if (unescaped) { |
| str += unescaped; |
| } else { |
| index = restore; |
| str += ch; |
| } |
| break; |
| case 'b': |
| str += '\b'; |
| break; |
| case 'f': |
| str += '\f'; |
| break; |
| case 'v': |
| str += '\v'; |
| break; |
| |
| default: |
| if (isOctalDigit(ch)) { |
| code = '01234567'.indexOf(ch); |
| |
| // \0 is not octal escape sequence |
| if (code !== 0) { |
| octal = true; |
| } |
| |
| 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++]); |
| } |
| } |
| str += String.fromCharCode(code); |
| } else { |
| str += ch; |
| } |
| break; |
| } |
| } else { |
| ++lineNumber; |
| if (ch === '\r' && source[index] === '\n') { |
| ++index; |
| } |
| } |
| } else if (isLineTerminator(ch)) { |
| break; |
| } else { |
| str += ch; |
| } |
| } |
| |
| if (quote !== '') { |
| throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); |
| } |
| |
| return { |
| type: Token.StringLiteral, |
| value: str, |
| octal: octal, |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [start, index] |
| }; |
| } |
| |
| function scanRegExp() { |
| var str, ch, start, pattern, flags, value, classMarker = false, restore, terminated = false; |
| |
| buffer = null; |
| skipComment(); |
| |
| start = index; |
| ch = source[index]; |
| assert(ch === '/', 'Regular expression literal must start with a slash'); |
| str = source[index++]; |
| |
| while (index < length) { |
| ch = source[index++]; |
| str += ch; |
| if (classMarker) { |
| if (ch === ']') { |
| classMarker = false; |
| } |
| } else { |
| if (ch === '\\') { |
| ch = source[index++]; |
| // ECMA-262 7.8.5 |
| if (isLineTerminator(ch)) { |
| throwError({}, Messages.UnterminatedRegExp); |
| } |
| str += ch; |
| } else if (ch === '/') { |
| terminated = true; |
| break; |
| } else if (ch === '[') { |
| classMarker = true; |
| } else if (isLineTerminator(ch)) { |
| throwError({}, Messages.UnterminatedRegExp); |
| } |
| } |
| } |
| |
| if (!terminated) { |
| throwError({}, Messages.UnterminatedRegExp); |
| } |
| |
| // Exclude leading and trailing slash. |
| pattern = str.substr(1, str.length - 2); |
| |
| flags = ''; |
| while (index < length) { |
| ch = source[index]; |
| if (!isIdentifierPart(ch)) { |
| break; |
| } |
| |
| ++index; |
| if (ch === '\\' && index < length) { |
| ch = source[index]; |
| if (ch === 'u') { |
| ++index; |
| restore = index; |
| ch = scanHexEscape('u'); |
| if (ch) { |
| flags += ch; |
| str += '\\u'; |
| for (; restore < index; ++restore) { |
| str += source[restore]; |
| } |
| } else { |
| index = restore; |
| flags += 'u'; |
| str += '\\u'; |
| } |
| } else { |
| str += '\\'; |
| } |
| } else { |
| flags += ch; |
| str += ch; |
| } |
| } |
| |
| try { |
| value = new RegExp(pattern, flags); |
| } catch (e) { |
| throwError({}, Messages.InvalidRegExp); |
| } |
| |
| return { |
| literal: str, |
| value: value, |
| range: [start, index] |
| }; |
| } |
| |
| function isIdentifierName(token) { |
| return token.type === Token.Identifier || |
| token.type === Token.Keyword || |
| token.type === Token.BooleanLiteral || |
| token.type === Token.NullLiteral; |
| } |
| |
| function advance() { |
| var ch, token; |
| |
| skipComment(); |
| |
| if (index >= length) { |
| return { |
| type: Token.EOF, |
| lineNumber: lineNumber, |
| lineStart: lineStart, |
| range: [index, index] |
| }; |
| } |
| |
| token = scanPunctuator(); |
| if (typeof token !== 'undefined') { |
| return token; |
| } |
| |
| ch = source[index]; |
| |
| if (ch === '\'' || ch === '"') { |
| return scanStringLiteral(); |
| } |
| |
| if (ch === '.' || isDecimalDigit(ch)) { |
| return scanNumericLiteral(); |
| } |
| |
| token = scanIdentifier(); |
| if (typeof token !== 'undefined') { |
| return token; |
| } |
| |
| throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); |
| } |
| |
| function lex() { |
| var token; |
| |
| if (buffer) { |
| index = buffer.range[1]; |
| lineNumber = buffer.lineNumber; |
| lineStart = buffer.lineStart; |
| token = buffer; |
| buffer = null; |
| return token; |
| } |
| |
| buffer = null; |
| return advance(); |
| } |
| |
| function lookahead() { |
| var pos, line, start; |
| |
| if (buffer !== null) { |
| return buffer; |
| } |
| |
| pos = index; |
| line = lineNumber; |
| start = lineStart; |
| buffer = advance(); |
| index = pos; |
| lineNumber = line; |
| lineStart = start; |
| |
| return buffer; |
| } |
| |
| // Return true if there is a line terminator before the next token. |
| |
| function peekLineTerminator() { |
| var pos, line, start, found; |
| |
| pos = index; |
| line = lineNumber; |
| start = lineStart; |
| skipComment(); |
| found = lineNumber !== line; |
| index = pos; |
| lineNumber = line; |
| lineStart = start; |
| |
| return found; |
| } |
| |
| // Throw an exception |
| |
| function throwError(token, messageFormat) { |
| var error, |
| args = Array.prototype.slice.call(arguments, 2), |
| msg = messageFormat.replace( |
| /%(\d)/g, |
| function (whole, index) { |
| return args[index] || ''; |
| } |
| ); |
| |
| if (typeof token.lineNumber === 'number') { |
| error = new Error('Line ' + token.lineNumber + ': ' + msg); |
| error.index = token.range[0]; |
| error.lineNumber = token.lineNumber; |
| error.column = token.range[0] - lineStart + 1; |
| } else { |
| error = new Error('Line ' + lineNumber + ': ' + msg); |
| error.index = index; |
| error.lineNumber = lineNumber; |
| error.column = index - lineStart + 1; |
| } |
| |
| throw error; |
| } |
| |
| function throwErrorTolerant() { |
| try { |
| throwError.apply(null, arguments); |
| } catch (e) { |
| if (extra.errors) { |
| extra.errors.push(e); |
| } else { |
| throw e; |
| } |
| } |
| } |
| |
| |
| // Throw an exception because of the token. |
| |
| function throwUnexpected(token) { |
| if (token.type === Token.EOF) { |
| throwError(token, Messages.UnexpectedEOS); |
| } |
| |
| if (token.type === Token.NumericLiteral) { |
| throwError(token, Messages.UnexpectedNumber); |
| } |
| |
| if (token.type === Token.StringLiteral) { |
| throwError(token, Messages.UnexpectedString); |
| } |
| |
| if (token.type === Token.Identifier) { |
| throwError(token, Messages.UnexpectedIdentifier); |
| } |
| |
| if (token.type === Token.Keyword) { |
| if (isFutureReservedWord(token.value)) { |
| throwError(token, Messages.UnexpectedReserved); |
| } else if (strict && isStrictModeReservedWord(token.value)) { |
| throwErrorTolerant(token, Messages.StrictReservedWord); |
| return; |
| } |
| throwError(token, Messages.UnexpectedToken, token.value); |
| } |
| |
| // BooleanLiteral, NullLiteral, or Punctuator. |
| throwError(token, Messages.UnexpectedToken, token.value); |
| } |
| |
| // 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) { |
| throwUnexpected(token); |
| } |
| } |
| |
| // 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) { |
| throwUnexpected(token); |
| } |
| } |
| |
| // Return true if the next token matches the specified punctuator. |
| |
| function match(value) { |
| var token = lookahead(); |
| return token.type === Token.Punctuator && token.value === value; |
| } |
| |
| // Return true if the next token matches the specified keyword |
| |
| function matchKeyword(keyword) { |
| var token = lookahead(); |
| return token.type === Token.Keyword && token.value === keyword; |
| } |
| |
| // Return true if the next token is an assignment operator |
| |
| function matchAssign() { |
| var token = lookahead(), |
| op = token.value; |
| |
| if (token.type !== Token.Punctuator) { |
| return false; |
| } |
| return op === '=' || |
| op === '*=' || |
| op === '/=' || |
| op === '%=' || |
| op === '+=' || |
| op === '-=' || |
| op === '<<=' || |
| op === '>>=' || |
| op === '>>>=' || |
| op === '&=' || |
| op === '^=' || |
| op === '|='; |
| } |
| |
| function consumeSemicolon() { |
| var token, line; |
| |
| // Catch the very common case first. |
| if (source[index] === ';') { |
| lex(); |
| return; |
| } |
| |
| line = lineNumber; |
| skipComment(); |
| if (lineNumber !== line) { |
| return; |
| } |
| |
| if (match(';')) { |
| lex(); |
| return; |
| } |
| |
| token = lookahead(); |
| if (token.type !== Token.EOF && !match('}')) { |
| throwUnexpected(token); |
| } |
| } |
| |
| // Return true if provided expression is LeftHandSideExpression |
| |
| function isLeftHandSide(expr) { |
| return expr.type === Syntax.Identifier || expr.type === Syntax.MemberExpression; |
| } |
| |
| // 11.1.4 Array Initialiser |
| |
| function parseArrayInitialiser() { |
| var elements = []; |
| |
| expect('['); |
| |
| while (!match(']')) { |
| if (match(',')) { |
| lex(); |
| elements.push(null); |
| } else { |
| elements.push(parseAssignmentExpression()); |
| |
| if (!match(']')) { |
| expect(','); |
| } |
| } |
| } |
| |
| expect(']'); |
| |
| return { |
| type: Syntax.ArrayExpression, |
| elements: elements |
| }; |
| } |
| |
| // 11.1.5 Object Initialiser |
| |
| function parsePropertyFunction(param, first) { |
| var previousStrict, body; |
| |
| previousStrict = strict; |
| body = parseFunctionSourceElements(); |
| if (first && strict && isRestrictedWord(param[0].name)) { |
| throwErrorTolerant(first, Messages.StrictParamName); |
| } |
| strict = previousStrict; |
| |
| return { |
| type: Syntax.FunctionExpression, |
| id: null, |
| params: param, |
| defaults: [], |
| body: body, |
| rest: null, |
| generator: false, |
| expression: false |
| }; |
| } |
| |
| function parseObjectPropertyKey() { |
| var token = lex(); |
| |
| // Note: This function is called only from parseObjectProperty(), where |
| // EOF and Punctuator tokens are already filtered out. |
| |
| if (token.type === Token.StringLiteral || token.type === Token.NumericLiteral) { |
| if (strict && token.octal) { |
| throwErrorTolerant(token, Messages.StrictOctalLiteral); |
| } |
| return createLiteral(token); |
| } |
| |
| return { |
| type: Syntax.Identifier, |
| name: token.value |
| }; |
| } |
| |
| function parseObjectProperty() { |
| var token, key, id, param; |
| |
| token = lookahead(); |
| |
| if (token.type === Token.Identifier) { |
| |
| id = parseObjectPropertyKey(); |
| |
| // Property Assignment: Getter and Setter. |
| |
| if (token.value === 'get' && !match(':')) { |
| key = parseObjectPropertyKey(); |
| expect('('); |
| expect(')'); |
| return { |
| type: Syntax.Property, |
| key: key, |
| value: parsePropertyFunction([]), |
| kind: 'get' |
| }; |
| } else if (token.value === 'set' && !match(':')) { |
| key = parseObjectPropertyKey(); |
| expect('('); |
| token = lookahead(); |
| if (token.type !== Token.Identifier) { |
| throwUnexpected(lex()); |
| } |
| param = [ parseVariableIdentifier() ]; |
| expect(')'); |
| return { |
| type: Syntax.Property, |
| key: key, |
| value: parsePropertyFunction(param, token), |
| kind: 'set' |
| }; |
| } else { |
| expect(':'); |
| return { |
| type: Syntax.Property, |
| key: id, |
| value: parseAssignmentExpression(), |
| kind: 'init' |
| }; |
| } |
| } else if (token.type === Token.EOF || token.type === Token.Punctuator) { |
| throwUnexpected(token); |
| } else { |
| key = parseObjectPropertyKey(); |
| expect(':'); |
| return { |
| type: Syntax.Property, |
| key: key, |
| value: parseAssignmentExpression(), |
| kind: 'init' |
| }; |
| } |
| } |
| |
| function parseObjectInitialiser() { |
| var properties = [], property, name, kind, map = {}, toString = String; |
| |
| expect('{'); |
| |
| while (!match('}')) { |
| property = parseObjectProperty(); |
| |
| if (property.key.type === Syntax.Identifier) { |
| name = property.key.name; |
| } else { |
| name = toString(property.key.value); |
| } |
| kind = (property.kind === 'init') ? PropertyKind.Data : (property.kind === 'get') ? PropertyKind.Get : PropertyKind.Set; |
| if (Object.prototype.hasOwnProperty.call(map, name)) { |
| if (map[name] === PropertyKind.Data) { |
| if (strict && kind === PropertyKind.Data) { |
| throwErrorTolerant({}, Messages.StrictDuplicateProperty); |
| } else if (kind !== PropertyKind.Data) { |
| throwErrorTolerant({}, Messages.AccessorDataProperty); |
| } |
| } else { |
| if (kind === PropertyKind.Data) { |
| throwErrorTolerant({}, Messages.AccessorDataProperty); |
| } else if (map[name] & kind) { |
| throwErrorTolerant({}, Messages.AccessorGetSet); |
| } |
| } |
| map[name] |= kind; |
| } else { |
| map[name] = kind; |
| } |
| |
| properties.push(property); |
| |
| if (!match('}')) { |
| expect(','); |
| } |
| } |
| |
| expect('}'); |
| |
| return { |
| type: Syntax.ObjectExpression, |
| properties: properties |
| }; |
| } |
| |
| // 11.1.6 The Grouping Operator |
| |
| function parseGroupExpression() { |
| var expr; |
| |
| expect('('); |
| |
| expr = parseExpression(); |
| |
| expect(')'); |
| |
| return expr; |
| } |
| |
| |
| // 11.1 Primary Expressions |
| |
| function parsePrimaryExpression() { |
| var token = lookahead(), |
| type = token.type; |
| |
| if (type === Token.Identifier) { |
| return { |
| type: Syntax.Identifier, |
| name: lex().value |
| }; |
| } |
| |
| if (type === Token.StringLiteral || type === Token.NumericLiteral) { |
| if (strict && token.octal) { |
| throwErrorTolerant(token, Messages.StrictOctalLiteral); |
| } |
| return createLiteral(lex()); |
| } |
| |
| if (type === Token.Keyword) { |
| if (matchKeyword('this')) { |
| lex(); |
| return { |
| type: Syntax.ThisExpression |
| }; |
| } |
| |
| if (matchKeyword('function')) { |
| return parseFunctionExpression(); |
| } |
| } |
| |
| if (type === Token.BooleanLiteral) { |
| lex(); |
| token.value = (token.value === 'true'); |
| return createLiteral(token); |
| } |
| |
| if (type === Token.NullLiteral) { |
| lex(); |
| token.value = null; |
| return createLiteral(token); |
| } |
| |
| if (match('[')) { |
| return parseArrayInitialiser(); |
| } |
| |
| if (match('{')) { |
| return parseObjectInitialiser(); |
| } |
| |
| if (match('(')) { |
| return parseGroupExpression(); |
| } |
| |
| if (match('/') || match('/=')) { |
| return createLiteral(scanRegExp()); |
| } |
| |
| return throwUnexpected(lex()); |
| } |
| |
| // 11.2 Left-Hand-Side Expressions |
| |
| function parseArguments() { |
| var args = []; |
| |
| expect('('); |
| |
| if (!match(')')) { |
| while (index < length) { |
| args.push(parseAssignmentExpression()); |
| if (match(')')) { |
| break; |
| } |
| expect(','); |
| } |
| } |
| |
| expect(')'); |
| |
| return args; |
| } |
| |
| function parseNonComputedProperty() { |
| var token = lex(); |
| |
| if (!isIdentifierName(token)) { |
| throwUnexpected(token); |
| } |
| |
| return { |
| type: Syntax.Identifier, |
| name: token.value |
| }; |
| } |
| |
| function parseNonComputedMember() { |
| expect('.'); |
| |
| return parseNonComputedProperty(); |
| } |
| |
| function parseComputedMember() { |
| var expr; |
| |
| expect('['); |
| |
| expr = parseExpression(); |
| |
| expect(']'); |
| |
| return expr; |
| } |
| |
| function parseNewExpression() { |
| var expr; |
| |
| expectKeyword('new'); |
| |
| expr = { |
| type: Syntax.NewExpression, |
| callee: parseLeftHandSideExpression(), |
| 'arguments': [] |
| }; |
| |
| if (match('(')) { |
| expr['arguments'] = parseArguments(); |
| } |
| |
| return expr; |
| } |
| |
| function parseLeftHandSideExpressionAllowCall() { |
| var expr; |
| |
| expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression(); |
| |
| while (match('.') || match('[') || match('(')) { |
| if (match('(')) { |
| expr = { |
| type: Syntax.CallExpression, |
| callee: expr, |
| 'arguments': parseArguments() |
| }; |
| } else if (match('[')) { |
| expr = { |
| type: Syntax.MemberExpression, |
| computed: true, |
| object: expr, |
| property: parseComputedMember() |
| }; |
| } else { |
| expr = { |
| type: Syntax.MemberExpression, |
| computed: false, |
| object: expr, |
| property: parseNonComputedMember() |
| }; |
| } |
| } |
| |
| return expr; |
| } |
| |
| |
| function parseLeftHandSideExpression() { |
| var expr; |
| |
| expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression(); |
| |
| while (match('.') || match('[')) { |
| if (match('[')) { |
| expr = { |
| type: Syntax.MemberExpression, |
| computed: true, |
| object: expr, |
| property: parseComputedMember() |
| }; |
| } else { |
| expr = { |
| type: Syntax.MemberExpression, |
| computed: false, |
| object: expr, |
| property: parseNonComputedMember() |
| }; |
| } |
| } |
| |
| return expr; |
| } |
| |
| // 11.3 Postfix Expressions |
| |
| function parsePostfixExpression() { |
| var expr = parseLeftHandSideExpressionAllowCall(), token; |
| |
| token = lookahead(); |
| if (token.type !== Token.Punctuator) { |
| return expr; |
| } |
| |
| if ((match('++') || match('--')) && !peekLineTerminator()) { |
| // 11.3.1, 11.3.2 |
| if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) { |
| throwErrorTolerant({}, Messages.StrictLHSPostfix); |
| } |
| |
| if (!isLeftHandSide(expr)) { |
| throwError({}, Messages.InvalidLHSInAssignment); |
| } |
| |
| expr = { |
| type: Syntax.UpdateExpression, |
| operator: lex().value, |
| argument: expr, |
| prefix: false |
| }; |
| } |
| |
| return expr; |
| } |
| |
| // 11.4 Unary Operators |
| |
| function parseUnaryExpression() { |
| var token, expr; |
| |
| token = lookahead(); |
| if (token.type !== Token.Punctuator && token.type !== Token.Keyword) { |
| return parsePostfixExpression(); |
| } |
| |
| if (match('++') || match('--')) { |
| token = lex(); |
| expr = parseUnaryExpression(); |
| // 11.4.4, 11.4.5 |
| if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) { |
| throwErrorTolerant({}, Messages.StrictLHSPrefix); |
| } |
| |
| if (!isLeftHandSide(expr)) { |
| throwError({}, Messages.InvalidLHSInAssignment); |
| } |
| |
| expr = { |
| type: Syntax.UpdateExpression, |
| operator: token.value, |
| argument: expr, |
| prefix: true |
| }; |
| return expr; |
| } |
| |
| if (match('+') || match('-') || match('~') || match('!')) { |
| expr = { |
| type: Syntax.UnaryExpression, |
| operator: lex().value, |
| argument: parseUnaryExpression() |
| }; |
| return expr; |
| } |
| |
| if (matchKeyword('delete') || matchKeyword('void') || matchKeyword('typeof')) { |
| expr = { |
| type: Syntax.UnaryExpression, |
| operator: lex().value, |
| argument: parseUnaryExpression() |
| }; |
| if (strict && expr.operator === 'delete' && expr.argument.type === Syntax.Identifier) { |
| throwErrorTolerant({}, Messages.StrictDelete); |
| } |
| return expr; |
| } |
| |
| return parsePostfixExpression(); |
| } |
| |
| // 11.5 Multiplicative Operators |
| |
| function parseMultiplicativeExpression() { |
| var expr = parseUnaryExpression(); |
| |
| while (match('*') || match('/') || match('%')) { |
| expr = { |
| type: Syntax.BinaryExpression, |
| operator: lex().value, |
| left: expr, |
| right: parseUnaryExpression() |
| }; |
| } |
| |
| return expr; |
| } |
| |
| // 11.6 Additive Operators |
| |
| function parseAdditiveExpression() { |
| var expr = parseMultiplicativeExpression(); |
| |
| while (match('+') || match('-')) { |
| expr = { |
| type: Syntax.BinaryExpression, |
| operator: lex().value, |
| left: expr, |
| right: parseMultiplicativeExpression() |
| }; |
| } |
| |
| return expr; |
| } |
| |
| // 11.7 Bitwise Shift Operators |
| |
| function parseShiftExpression() { |
| var expr = parseAdditiveExpression(); |
| |
| while (match('<<') || match('>>') || match('>>>')) { |
| expr = { |
| type: Syntax.BinaryExpression, |
| operator: lex().value, |
| left: expr, |
| right: parseAdditiveExpression() |
| }; |
| } |
| |
| return expr; |
| } |
| // 11.8 Relational Operators |
| |
| function parseRelationalExpression() { |
| var expr, previousAllowIn; |
| |
| previousAllowIn = state.allowIn; |
| state.allowIn = true; |
| |
| expr = parseShiftExpression(); |
| |
| while (match('<') || match('>') || match('<=') || match('>=') || (previousAllowIn && matchKeyword('in')) || matchKeyword('instanceof')) { |
| expr = { |
| type: Syntax.BinaryExpression, |
| operator: lex().value, |
| left: expr, |
| right: parseShiftExpression() |
| }; |
| } |
| |
| state.allowIn = previousAllowIn; |
| return expr; |
| } |
| |
| // 11.9 Equality Operators |
| |
| function parseEqualityExpression() { |
| var expr = parseRelationalExpression(); |
| |
| while (match('==') || match('!=') || match('===') || match('!==')) { |
| expr = { |
| type: Syntax.BinaryExpression, |
| operator: lex().value, |
| left: expr, |
| right: parseRelationalExpression() |
| }; |
| } |
| |
| return expr; |
| } |
| |
| // 11.10 Binary Bitwise Operators |
| |
| function parseBitwiseANDExpression() { |
| var expr = parseEqualityExpression(); |
| |
| while (match('&')) { |
| lex(); |
| expr = { |
| type: Syntax.BinaryExpression, |
| operator: '&', |
| left: expr, |
| right: parseEqualityExpression() |
| }; |
| } |
| |
| return expr; |
| } |
| |
| function parseBitwiseXORExpression() { |
| var expr = parseBitwiseANDExpression(); |
| |
| while (match('^')) { |
| lex(); |
| expr = { |
| type: Syntax.BinaryExpression, |
| operator: '^', |
| left: expr, |
| right: parseBitwiseANDExpression() |
| }; |
| } |
| |
| return expr; |
| } |
| |
| function parseBitwiseORExpression() { |
| var expr = parseBitwiseXORExpression(); |
| |
| while (match('|')) { |
| lex(); |
| expr = { |
| type: Syntax.BinaryExpression, |
| operator: '|', |
| left: expr, |
| right: parseBitwiseXORExpression() |
| }; |
| } |
| |
| return expr; |
| } |
| |
| // 11.11 Binary Logical Operators |
| |
| function parseLogicalANDExpression() { |
| var expr = parseBitwiseORExpression(); |
| |
| while (match('&&')) { |
| lex(); |
| expr = { |
| type: Syntax.LogicalExpression, |
| operator: '&&', |
| left: expr, |
| right: parseBitwiseORExpression() |
| }; |
| } |
| |
| return expr; |
| } |
| |
| function parseLogicalORExpression() { |
| var expr = parseLogicalANDExpression(); |
| |
| while (match('||')) { |
| lex(); |
| expr = { |
| type: Syntax.LogicalExpression, |
| operator: '||', |
| left: expr, |
| right: parseLogicalANDExpression() |
| }; |
| } |
| |
| return expr; |
| } |
| |
| // 11.12 Conditional Operator |
| |
| function parseConditionalExpression() { |
| var expr, previousAllowIn, consequent; |
| |
| expr = parseLogicalORExpression(); |
| |
| if (match('?')) { |
| lex(); |
| previousAllowIn = state.allowIn; |
| state.allowIn = true; |
| consequent = parseAssignmentExpression(); |
| state.allowIn = previousAllowIn; |
| expect(':'); |
| |
| expr = { |
| type: Syntax.ConditionalExpression, |
| test: expr, |
| consequent: consequent, |
| alternate: parseAssignmentExpression() |
| }; |
| } |
| |
| return expr; |
| } |
| |
| // 11.13 Assignment Operators |
| |
| function parseAssignmentExpression() { |
| var token, expr; |
| |
| token = lookahead(); |
| expr = parseConditionalExpression(); |
| |
| if (matchAssign()) { |
| // LeftHandSideExpression |
| if (!isLeftHandSide(expr)) { |
| throwError({}, Messages.InvalidLHSInAssignment); |
| } |
| |
| // 11.13.1 |
| if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) { |
| throwErrorTolerant(token, Messages.StrictLHSAssignment); |
| } |
| |
| expr = { |
| type: Syntax.AssignmentExpression, |
| operator: lex().value, |
| left: expr, |
| right: parseAssignmentExpression() |
| }; |
| } |
| |
| return expr; |
| } |
| |
| // 11.14 Comma Operator |
| |
| function parseExpression() { |
| var expr = parseAssignmentExpression(); |
| |
| if (match(',')) { |
| expr = { |
| type: Syntax.SequenceExpression, |
| expressions: [ expr ] |
| }; |
| |
| while (index < length) { |
| if (!match(',')) { |
| break; |
| } |
| lex(); |
| expr.expressions.push(parseAssignmentExpression()); |
| } |
| |
| } |
| return expr; |
| } |
| |
| // 12.1 Block |
| |
| function parseStatementList() { |
| var list = [], |
| statement; |
| |
| while (index < length) { |
| if (match('}')) { |
| break; |
| } |
| statement = parseSourceElement(); |
| if (typeof statement === 'undefined') { |
| break; |
| } |
| list.push(statement); |
| } |
| |
| return list; |
| } |
| |
| function parseBlock() { |
| var block; |
| |
| expect('{'); |
| |
| block = parseStatementList(); |
| |
| expect('}'); |
| |
| return { |
| type: Syntax.BlockStatement, |
| body: block |
| }; |
| } |
| |
| // 12.2 Variable Statement |
| |
| function parseVariableIdentifier() { |
| var token = lex(); |
| |
| if (token.type !== Token.Identifier) { |
| throwUnexpected(token); |
| } |
| |
| return { |
| type: Syntax.Identifier, |
| name: token.value |
| }; |
| } |
| |
| function parseVariableDeclaration(kind) { |
| var id = parseVariableIdentifier(), |
| init = null; |
| |
| // 12.2.1 |
| if (strict && isRestrictedWord(id.name)) { |
| throwErrorTolerant({}, Messages.StrictVarName); |
| } |
| |
| if (kind === 'const') { |
| expect('='); |
| init = parseAssignmentExpression(); |
| } else if (match('=')) { |
| lex(); |
| init = parseAssignmentExpression(); |
| } |
| |
| return { |
| type: Syntax.VariableDeclarator, |
| id: id, |
| init: init |
| }; |
| } |
| |
| function parseVariableDeclarationList(kind) { |
| var list = []; |
| |
| while (index < length) { |
| list.push(parseVariableDeclaration(kind)); |
| if (!match(',')) { |
| break; |
| } |
| lex(); |
| } |
| |
| return list; |
| } |
| |
| function parseVariableStatement() { |
| var declarations; |
| |
| expectKeyword('var'); |
| |
| declarations = parseVariableDeclarationList(); |
| |
| consumeSemicolon(); |
| |
| return { |
| type: Syntax.VariableDeclaration, |
| declarations: declarations, |
| kind: 'var' |
| }; |
| } |
| |
| // kind may be `const` or `let` |
| // Both are experimental and not in the specification yet. |
| // see http://wiki.ecmascript.org/doku.php?id=harmony:const |
| // and http://wiki.ecmascript.org/doku.php?id=harmony:let |
| function parseConstLetDeclaration(kind) { |
| var declarations; |
| |
| expectKeyword(kind); |
| |
| declarations = parseVariableDeclarationList(kind); |
| |
| consumeSemicolon(); |
| |
| return { |
| type: Syntax.VariableDeclaration, |
| declarations: declarations, |
| kind: kind |
| }; |
| } |
| |
| // 12.3 Empty Statement |
| |
| function parseEmptyStatement() { |
| expect(';'); |
| |
| return { |
| type: Syntax.EmptyStatement |
| }; |
| } |
| |
| // 12.4 Expression Statement |
| |
| function parseExpressionStatement() { |
| var expr = parseExpression(); |
| |
| consumeSemicolon(); |
| |
| return { |
| type: Syntax.ExpressionStatement, |
| expression: expr |
| }; |
| } |
| |
| // 12.5 If statement |
| |
| function parseIfStatement() { |
| var test, consequent, alternate; |
| |
| expectKeyword('if'); |
| |
| expect('('); |
| |
| test = parseExpression(); |
| |
| expect(')'); |
| |
| consequent = parseStatement(); |
| |
| if (matchKeyword('else')) { |
| lex(); |
| alternate = parseStatement(); |
| } else { |
| alternate = null; |
| } |
| |
| return { |
| type: Syntax.IfStatement, |
| test: test, |
| consequent: consequent, |
| alternate: alternate |
| }; |
| } |
| |
| // 12.6 Iteration Statements |
| |
| function parseDoWhileStatement() { |
| 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 { |
| type: Syntax.DoWhileStatement, |
| body: body, |
| test: test |
| }; |
| } |
| |
| function parseWhileStatement() { |
| var test, body, oldInIteration; |
| |
| expectKeyword('while'); |
| |
| expect('('); |
| |
| test = parseExpression(); |
| |
| expect(')'); |
| |
| oldInIteration = state.inIteration; |
| state.inIteration = true; |
| |
| body = parseStatement(); |
| |
| state.inIteration = oldInIteration; |
| |
| return { |
| type: Syntax.WhileStatement, |
| test: test, |
| body: body |
| }; |
| } |
| |
| function parseForVariableDeclaration() { |
| var token = lex(); |
| |
| return { |
| type: Syntax.VariableDeclaration, |
| declarations: parseVariableDeclarationList(), |
| kind: token.value |
| }; |
| } |
| |
| function parseForStatement() { |
| var init, test, update, left, right, body, oldInIteration; |
| |
| init = test = update = null; |
| |
| expectKeyword('for'); |
| |
| expect('('); |
| |
| if (match(';')) { |
| lex(); |
| } else { |
| if (matchKeyword('var') || matchKeyword('let')) { |
| state.allowIn = false; |
| init = parseForVariableDeclaration(); |
| state.allowIn = true; |
| |
| if (init.declarations.length === 1 && matchKeyword('in')) { |
| lex(); |
| left = init; |
| right = parseExpression(); |
| init = null; |
| } |
| } else { |
| state.allowIn = false; |
| init = parseExpression(); |
| state.allowIn = true; |
| |
| if (matchKeyword('in')) { |
| // LeftHandSideExpression |
| if (!isLeftHandSide(init)) { |
| throwError({}, Messages.InvalidLHSInForIn); |
| } |
| |
| lex(); |
| left = init; |
| right = parseExpression(); |
| init = null; |
| } |
| } |
| |
| if (typeof left === 'undefined') { |
| expect(';'); |
| } |
| } |
| |
| if (typeof left === 'undefined') { |
| |
| if (!match(';')) { |
| test = parseExpression(); |
| } |
| expect(';'); |
| |
| if (!match(')')) { |
| update = parseExpression(); |
| } |
| } |
| |
| expect(')'); |
| |
| oldInIteration = state.inIteration; |
| state.inIteration = true; |
| |
| body = parseStatement(); |
| |
| state.inIteration = oldInIteration; |
| |
| if (typeof left === 'undefined') { |
| return { |
| type: Syntax.ForStatement, |
| init: init, |
| test: test, |
| update: update, |
| body: body |
| }; |
| } |
| |
| return { |
| type: Syntax.ForInStatement, |
| left: left, |
| right: right, |
| body: body, |
| each: false |
| }; |
| } |
| |
| // 12.7 The continue statement |
| |
| function parseContinueStatement() { |
| var token, label = null; |
| |
| expectKeyword('continue'); |
| |
| // Optimize the most common form: 'continue;'. |
| if (source[index] === ';') { |
| lex(); |
| |
| if (!state.inIteration) { |
| throwError({}, Messages.IllegalContinue); |
| } |
| |
| return { |
| type: Syntax.ContinueStatement, |
| label: null |
| }; |
| } |
| |
| if (peekLineTerminator()) { |
| if (!state.inIteration) { |
| throwError({}, Messages.IllegalContinue); |
| } |
| |
| return { |
| type: Syntax.ContinueStatement, |
| label: null |
| }; |
| } |
| |
| token = lookahead(); |
| if (token.type === Token.Identifier) { |
| label = parseVariableIdentifier(); |
| |
| if (!Object.prototype.hasOwnProperty.call(state.labelSet, label.name)) { |
| throwError({}, Messages.UnknownLabel, label.name); |
| } |
| } |
| |
| consumeSemicolon(); |
| |
| if (label === null && !state.inIteration) { |
| throwError({}, Messages.IllegalContinue); |
| } |
| |
| return { |
| type: Syntax.ContinueStatement, |
| label: label |
| }; |
| } |
| |
| // 12.8 The break statement |
| |
| function parseBreakStatement() { |
| var token, label = null; |
| |
| expectKeyword('break'); |
| |
| // Optimize the most common form: 'break;'. |
| if (source[index] === ';') { |
| lex(); |
| |
| if (!(state.inIteration || state.inSwitch)) { |
| throwError({}, Messages.IllegalBreak); |
| } |
| |
| return { |
| type: Syntax.BreakStatement, |
| label: null |
| }; |
| } |
| |
| if (peekLineTerminator()) { |
| if (!(state.inIteration || state.inSwitch)) { |
| throwError({}, Messages.IllegalBreak); |
| } |
| |
| return { |
| type: Syntax.BreakStatement, |
| label: null |
| }; |
| } |
| |
| token = lookahead(); |
| if (token.type === Token.Identifier) { |
| label = parseVariableIdentifier(); |
| |
| if (!Object.prototype.hasOwnProperty.call(state.labelSet, label.name)) { |
| throwError({}, Messages.UnknownLabel, label.name); |
| } |
| } |
| |
| consumeSemicolon(); |
| |
| if (label === null && !(state.inIteration || state.inSwitch)) { |
| throwError({}, Messages.IllegalBreak); |
| } |
| |
| return { |
| type: Syntax.BreakStatement, |
| label: label |
| }; |
| } |
| |
| // 12.9 The return statement |
| |
| function parseReturnStatement() { |
| var token, argument = null; |
| |
| expectKeyword('return'); |
| |
| if (!state.inFunctionBody) { |
| throwErrorTolerant({}, Messages.IllegalReturn); |
| } |
| |
| // 'return' followed by a space and an identifier is very common. |
| if (source[index] === ' ') { |
| if (isIdentifierStart(source[index + 1])) { |
| argument = parseExpression(); |
| consumeSemicolon(); |
| return { |
| type: Syntax.ReturnStatement, |
| argument: argument |
| }; |
| } |
| } |
| |
| if (peekLineTerminator()) { |
| return { |
| type: Syntax.ReturnStatement, |
| argument: null |
| }; |
| } |
| |
| if (!match(';')) { |
| token = lookahead(); |
| if (!match('}') && token.type !== Token.EOF) { |
| argument = parseExpression(); |
| } |
| } |
| |
| consumeSemicolon(); |
| |
| return { |
| type: Syntax.ReturnStatement, |
| argument: argument |
| }; |
| } |
| |
| // 12.10 The with statement |
| |
| function parseWithStatement() { |
| var object, body; |
| |
| if (strict) { |
| throwErrorTolerant({}, Messages.StrictModeWith); |
| } |
| |
| expectKeyword('with'); |
| |
| expect('('); |
| |
| object = parseExpression(); |
| |
| expect(')'); |
| |
| body = parseStatement(); |
| |
| return { |
| type: Syntax.WithStatement, |
| object: object, |
| body: body |
| }; |
| } |
| |
| // 12.10 The swith statement |
| |
| function parseSwitchCase() { |
| var test, |
| consequent = [], |
| statement; |
| |
| if (matchKeyword('default')) { |
| lex(); |
| test = null; |
| } else { |
| expectKeyword('case'); |
| test = parseExpression(); |
| } |
| expect(':'); |
| |
| while (index < length) { |
| if (match('}') || matchKeyword('default') || matchKeyword('case')) { |
| break; |
| } |
| statement = parseStatement(); |
| if (typeof statement === 'undefined') { |
| break; |
| } |
| consequent.push(statement); |
| } |
| |
| return { |
| type: Syntax.SwitchCase, |
| test: test, |
| consequent: consequent |
| }; |
| } |
| |
| function parseSwitchStatement() { |
| var discriminant, cases, clause, oldInSwitch, defaultFound; |
| |
| expectKeyword('switch'); |
| |
| expect('('); |
| |
| discriminant = parseExpression(); |
| |
| expect(')'); |
| |
| expect('{'); |
| |
| if (match('}')) { |
| lex(); |
| return { |
| type: Syntax.SwitchStatement, |
| discriminant: discriminant |
| }; |
| } |
| |
| cases = []; |
| |
| oldInSwitch = state.inSwitch; |
| state.inSwitch = true; |
| defaultFound = false; |
| |
| while (index < 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 { |
| type: Syntax.SwitchStatement, |
| discriminant: discriminant, |
| cases: cases |
| }; |
| } |
| |
| // 12.13 The throw statement |
| |
| function parseThrowStatement() { |
| var argument; |
| |
| expectKeyword('throw'); |
| |
| if (peekLineTerminator()) { |
| throwError({}, Messages.NewlineAfterThrow); |
| } |
| |
| argument = parseExpression(); |
| |
| consumeSemicolon(); |
| |
| return { |
| type: Syntax.ThrowStatement, |
| argument: argument |
| }; |
| } |
| |
| // 12.14 The try statement |
| |
| function parseCatchClause() { |
| var param; |
| |
| expectKeyword('catch'); |
| |
| expect('('); |
| if (!match(')')) { |
| param = parseExpression(); |
| // 12.14.1 |
| if (strict && param.type === Syntax.Identifier && isRestrictedWord(param.name)) { |
| throwErrorTolerant({}, Messages.StrictCatchVariable); |
| } |
| } |
| expect(')'); |
| |
| return { |
| type: Syntax.CatchClause, |
| param: param, |
| body: parseBlock() |
| }; |
| } |
| |
| function parseTryStatement() { |
| var block, handlers = [], finalizer = null; |
| |
| expectKeyword('try'); |
| |
| block = parseBlock(); |
| |
| if (matchKeyword('catch')) { |
| handlers.push(parseCatchClause()); |
| } |
| |
| if (matchKeyword('finally')) { |
| lex(); |
| finalizer = parseBlock(); |
| } |
| |
| if (handlers.length === 0 && !finalizer) { |
| throwError({}, Messages.NoCatchOrFinally); |
| } |
| |
| return { |
| type: Syntax.TryStatement, |
| block: block, |
| guardedHandlers: [], |
| handlers: handlers, |
| finalizer: finalizer |
| }; |
| } |
| |
| // 12.15 The debugger statement |
| |
| function parseDebuggerStatement() { |
| expectKeyword('debugger'); |
| |
| consumeSemicolon(); |
| |
| return { |
| type: Syntax.DebuggerStatement |
| }; |
| } |
| |
| // 12 Statements |
| |
| function parseStatement() { |
| var token = lookahead(), |
| expr, |
| labeledBody; |
| |
| if (token.type === Token.EOF) { |
| throwUnexpected(token); |
| } |
| |
| if (token.type === Token.Punctuator) { |
| switch (token.value) { |
| case ';': |
| return parseEmptyStatement(); |
| case '{': |
| return parseBlock(); |
| case '(': |
| return parseExpressionStatement(); |
| default: |
| break; |
| } |
| } |
| |
| if (token.type === Token.Keyword) { |
| switch (token.value) { |
| case 'break': |
| return parseBreakStatement(); |
| case 'continue': |
| return parseContinueStatement(); |
| case 'debugger': |
| return parseDebuggerStatement(); |
| case 'do': |
| return parseDoWhileStatement(); |
| case 'for': |
| return parseForStatement(); |
| case 'function': |
| return parseFunctionDeclaration(); |
| case 'if': |
| return parseIfStatement(); |
| case 'return': |
| return parseReturnStatement(); |
| case 'switch': |
| return parseSwitchStatement(); |
| case 'throw': |
| return parseThrowStatement(); |
| case 'try': |
| return parseTryStatement(); |
| case 'var': |
| return parseVariableStatement(); |
| case 'while': |
| return parseWhileStatement(); |
| case 'with': |
| return parseWithStatement(); |
| default: |
| break; |
| } |
| } |
| |
| expr = parseExpression(); |
| |
| // 12.12 Labelled Statements |
| if ((expr.type === Syntax.Identifier) && match(':')) { |
| lex(); |
| |
| if (Object.prototype.hasOwnProperty.call(state.labelSet, expr.name)) { |
| throwError({}, Messages.Redeclaration, 'Label', expr.name); |
| } |
| |
| state.labelSet[expr.name] = true; |
| labeledBody = parseStatement(); |
| delete state.labelSet[expr.name]; |
| |
| return { |
| type: Syntax.LabeledStatement, |
| label: expr, |
| body: labeledBody |
| }; |
| } |
| |
| consumeSemicolon(); |
| |
| return { |
| type: Syntax.ExpressionStatement, |
| expression: expr |
| }; |
| } |
| |
| // 13 Function Definition |
| |
| function parseFunctionSourceElements() { |
| var sourceElement, sourceElements = [], token, directive, firstRestricted, |
| oldLabelSet, oldInIteration, oldInSwitch, oldInFunctionBody; |
| |
| expect('{'); |
| |
| while (index < length) { |
| token = lookahead(); |
| if (token.type !== Token.StringLiteral) { |
| break; |
| } |
| |
| sourceElement = parseSourceElement(); |
| sourceElements.push(sourceElement); |
| if (sourceElement.expression.type !== Syntax.Literal) { |
| // this is not directive |
| break; |
| } |
| directive = sliceSource(token.range[0] + 1, token.range[1] - 1); |
| if (directive === 'use strict') { |
| strict = true; |
| if (firstRestricted) { |
| throwErrorTolerant(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 (index < length) { |
| if (match('}')) { |
| break; |
| } |
| sourceElement = parseSourceElement(); |
| if (typeof sourceElement === 'undefined') { |
| break; |
| } |
| sourceElements.push(sourceElement); |
| } |
| |
| expect('}'); |
| |
| state.labelSet = oldLabelSet; |
| state.inIteration = oldInIteration; |
| state.inSwitch = oldInSwitch; |
| state.inFunctionBody = oldInFunctionBody; |
| |
| return { |
| type: Syntax.BlockStatement, |
| body: sourceElements |
| }; |
| } |
| |
| function parseFunctionDeclaration() { |
| var id, param, params = [], body, token, stricted, firstRestricted, message, previousStrict, paramSet; |
| |
| expectKeyword('function'); |
| token = lookahead(); |
| id = parseVariableIdentifier(); |
| if (strict) { |
| if (isRestrictedWord(token.value)) { |
| throwErrorTolerant(token, Messages.StrictFunctionName); |
| } |
| } else { |
| if (isRestrictedWord(token.value)) { |
| firstRestricted = token; |
| message = Messages.StrictFunctionName; |
| } else if (isStrictModeReservedWord(token.value)) { |
| firstRestricted = token; |
| message = Messages.StrictReservedWord; |
| } |
| } |
| |
| expect('('); |
| |
| if (!match(')')) { |
| paramSet = {}; |
| while (index < length) { |
| token = lookahead(); |
| param = parseVariableIdentifier(); |
| if (strict) { |
| if (isRestrictedWord(token.value)) { |
| stricted = token; |
| message = Messages.StrictParamName; |
| } |
| if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) { |
| stricted = token; |
| message = Messages.StrictParamDupe; |
| } |
| } else if (!firstRestricted) { |
| if (isRestrictedWord(token.value)) { |
| firstRestricted = token; |
| message = Messages.StrictParamName; |
| } else if (isStrictModeReservedWord(token.value)) { |
| firstRestricted = token; |
| message = Messages.StrictReservedWord; |
| } else if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) { |
| firstRestricted = token; |
| message = Messages.StrictParamDupe; |
| } |
| } |
| params.push(param); |
| paramSet[param.name] = true; |
| if (match(')')) { |
| break; |
| } |
| expect(','); |
| } |
| } |
| |
| expect(')'); |
| |
| previousStrict = strict; |
| body = parseFunctionSourceElements(); |
| if (strict && firstRestricted) { |
| throwError(firstRestricted, message); |
| } |
| if (strict && stricted) { |
| throwErrorTolerant(stricted, message); |
| } |
| strict = previousStrict; |
| |
| return { |
| type: Syntax.FunctionDeclaration, |
| id: id, |
| params: params, |
| defaults: [], |
| body: body, |
| rest: null, |
| generator: false, |
| expression: false |
| }; |
| } |
| |
| function parseFunctionExpression() { |
| var token, id = null, stricted, firstRestricted, message, param, params = [], body, previousStrict, paramSet; |
| |
| expectKeyword('function'); |
| |
| if (!match('(')) { |
| token = lookahead(); |
| id = parseVariableIdentifier(); |
| if (strict) { |
| if (isRestrictedWord(token.value)) { |
| throwErrorTolerant(token, Messages.StrictFunctionName); |
| } |
| } else { |
| if (isRestrictedWord(token.value)) { |
| firstRestricted = token; |
| message = Messages.StrictFunctionName; |
| } else if (isStrictModeReservedWord(token.value)) { |
| firstRestricted = token; |
| message = Messages.StrictReservedWord; |
| } |
| } |
| } |
| |
| expect('('); |
| |
| if (!match(')')) { |
| paramSet = {}; |
| while (index < length) { |
| token = lookahead(); |
| param = parseVariableIdentifier(); |
| if (strict) { |
| if (isRestrictedWord(token.value)) { |
| stricted = token; |
| message = Messages.StrictParamName; |
| } |
| if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) { |
| stricted = token; |
| message = Messages.StrictParamDupe; |
| } |
| } else if (!firstRestricted) { |
| if (isRestrictedWord(token.value)) { |
| firstRestricted = token; |
| message = Messages.StrictParamName; |
| } else if (isStrictModeReservedWord(token.value)) { |
| firstRestricted = token; |
| message = Messages.StrictReservedWord; |
| } else if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) { |
| firstRestricted = token; |
| message = Messages.StrictParamDupe; |
| } |
| } |
| params.push(param); |
| paramSet[param.name] = true; |
| if (match(')')) { |
| break; |
| } |
| expect(','); |
| } |
| } |
| |
| expect(')'); |
| |
| previousStrict = strict; |
| body = parseFunctionSourceElements(); |
| if (strict && firstRestricted) { |
| throwError(firstRestricted, message); |
| } |
| if (strict && stricted) { |
| throwErrorTolerant(stricted, message); |
| } |
| strict = previousStrict; |
| |
| return { |
| type: Syntax.FunctionExpression, |
| id: id, |
| params: params, |
| defaults: [], |
| body: body, |
| rest: null, |
| generator: false, |
| expression: false |
| }; |
| } |
| |
| // 14 Program |
| |
| function parseSourceElement() { |
| var token = lookahead(); |
| |
| if (token.type === Token.Keyword) { |
| switch (token.value) { |
| case 'const': |
| case 'let': |
| return parseConstLetDeclaration(token.value); |
| case 'function': |
| return parseFunctionDeclaration(); |
| default: |
| return parseStatement(); |
| } |
| } |
| |
| if (token.type !== Token.EOF) { |
| return parseStatement(); |
| } |
| } |
| |
| function parseSourceElements() { |
| var sourceElement, sourceElements = [], token, directive, firstRestricted; |
| |
| while (index < length) { |
| token = lookahead(); |
| if (token.type !== Token.StringLiteral) { |
| break; |
| } |
| |
| sourceElement = parseSourceElement(); |
| sourceElements.push(sourceElement); |
| if (sourceElement.expression.type !== Syntax.Literal) { |
| // this is not directive |
| break; |
| } |
| directive = sliceSource(token.range[0] + 1, token.range[1] - 1); |
| if (directive === 'use strict') { |
| strict = true; |
| if (firstRestricted) { |
| throwErrorTolerant(firstRestricted, Messages.StrictOctalLiteral); |
| } |
| } else { |
| if (!firstRestricted && token.octal) { |
| firstRestricted = token; |
| } |
| } |
| } |
| |
| while (index < length) { |
| sourceElement = parseSourceElement(); |
| if (typeof sourceElement === 'undefined') { |
| break; |
| } |
| sourceElements.push(sourceElement); |
| } |
| return sourceElements; |
| } |
| |
| function parseProgram() { |
| var program; |
| strict = false; |
| program = { |
| type: Syntax.Program, |
| body: parseSourceElements() |
| }; |
| return program; |
| } |
| |
| // The following functions are needed only when the option to preserve |
| // the comments is active. |
| |
| function addComment(type, value, start, end, loc) { |
| assert(typeof start === 'number', 'Comment must have valid position'); |
| |
| // Because the way the actual token is scanned, often the comments |
| // (if any) are skipped twice during the lexical analysis. |
| // Thus, we need to skip adding a comment if the comment array already |
| // handled it. |
| if (extra.comments.length > 0) { |
| if (extra.comments[extra.comments.length - 1].range[1] > start) { |
| return; |
| } |
| } |
| |
| extra.comments.push({ |
| type: type, |
| value: value, |
| range: [start, end], |
| loc: loc |
| }); |
| } |
| |
| function scanComment() { |
| var comment, ch, loc, start, blockComment, lineComment; |
| |
| comment = ''; |
| blockComment = false; |
| lineComment = false; |
| |
| while (index < length) { |
| ch = source[index]; |
| |
| if (lineComment) { |
| ch = source[index++]; |
| if (isLineTerminator(ch)) { |
| loc.end = { |
| line: lineNumber, |
| column: index - lineStart - 1 |
| }; |
| lineComment = false; |
| addComment('Line', comment, start, index - 1, loc); |
| if (ch === '\r' && source[index] === '\n') { |
| ++index; |
| } |
| ++lineNumber; |
| lineStart = index; |
| comment = ''; |
| } else if (index >= length) { |
| lineComment = false; |
| comment += ch; |
| loc.end = { |
| line: lineNumber, |
| column: length - lineStart |
| }; |
| addComment('Line', comment, start, length, loc); |
| } else { |
| comment += ch; |
| } |
| } else if (blockComment) { |
| if (isLineTerminator(ch)) { |
| if (ch === '\r' && source[index + 1] === '\n') { |
| ++index; |
| comment += '\r\n'; |
| } else { |
| comment += ch; |
| } |
| ++lineNumber; |
| ++index; |
| lineStart = index; |
| if (index >= length) { |
| throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); |
| } |
| } else { |
| ch = source[index++]; |
| if (index >= length) { |
| throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); |
| } |
| comment += ch; |
| if (ch === '*') { |
| ch = source[index]; |
| if (ch === '/') { |
| comment = comment.substr(0, comment.length - 1); |
| blockComment = false; |
| ++index; |
| loc.end = { |
| line: lineNumber, |
| column: index - lineStart |
| }; |
| addComment('Block', comment, start, index, loc); |
| comment = ''; |
| } |
| } |
| } |
| } else if (ch === '/') { |
| ch = source[index + 1]; |
| if (ch === '/') { |
| loc = { |
| start: { |
| line: lineNumber, |
| column: index - lineStart |
| } |
| }; |
| start = index; |
| index += 2; |
| lineComment = true; |
| if (index >= length) { |
| loc.end = { |
| line: lineNumber, |
| column: index - lineStart |
| }; |
| lineComment = false; |
| addComment('Line', comment, start, index, loc); |
| } |
| } else if (ch === '*') { |
| start = index; |
| index += 2; |
| blockComment = true; |
| loc = { |
| start: { |
| line: lineNumber, |
| column: index - lineStart - 2 |
| } |
| }; |
| if (index >= length) { |
| throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); |
| } |
| } else { |
| break; |
| } |
| } else if (isWhiteSpace(ch)) { |
| ++index; |
| } else if (isLineTerminator(ch)) { |
| ++index; |
| if (ch === '\r' && source[index] === '\n') { |
| ++index; |
| } |
| ++lineNumber; |
| lineStart = index; |
| } else { |
| break; |
| } |
| } |
| } |
| |
| function filterCommentLocation() { |
| var i, entry, comment, comments = []; |
| |
| for (i = 0; i < extra.comments.length; ++i) { |
| entry = extra.comments[i]; |
| comment = { |
| type: entry.type, |
| value: entry.value |
| }; |
| if (extra.range) { |
| comment.range = entry.range; |
| } |
| if (extra.loc) { |
| comment.loc = entry.loc; |
| } |
| comments.push(comment); |
| } |
| |
| extra.comments = comments; |
| } |
| |
| function collectToken() { |
| var start, loc, token, range, value; |
| |
| skipComment(); |
| start = index; |
| loc = { |
| start: { |
| line: lineNumber, |
| column: index - lineStart |
| } |
| }; |
| |
| token = extra.advance(); |
| loc.end = { |
| line: lineNumber, |
| column: index - lineStart |
| }; |
| |
| if (token.type !== Token.EOF) { |
| range = [token.range[0], token.range[1]]; |
| value = sliceSource(token.range[0], token.range[1]); |
| extra.tokens.push({ |
| type: TokenName[token.type], |
| value: value, |
| range: range, |
| loc: loc |
| }); |
| } |
| |
| return token; |
| } |
| |
| function collectRegex() { |
| var pos, loc, regex, token; |
| |
| skipComment(); |
| |
| pos = index; |
| loc = { |
| start: { |
| line: lineNumber, |
| column: index - lineStart |
| } |
| }; |
| |
| regex = extra.scanRegExp(); |
| loc.end = { |
| line: lineNumber, |
| column: index - lineStart |
| }; |
| |
| // 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, |
| range: [pos, index], |
| loc: loc |
| }); |
| |
| return regex; |
| } |
| |
| function filterTokenLocation() { |
| var i, entry, token, tokens = []; |
| |
| for (i = 0; i < extra.tokens.length; ++i) { |
| entry = extra.tokens[i]; |
| token = { |
| type: entry.type, |
| value: entry.value |
| }; |
| if (extra.range) { |
| token.range = entry.range; |
| } |
| if (extra.loc) { |
| token.loc = entry.loc; |
| } |
| tokens.push(token); |
| } |
| |
| extra.tokens = tokens; |
| } |
| |
| function createLiteral(token) { |
| return { |
| type: Syntax.Literal, |
| value: token.value |
| }; |
| } |
| |
| function createRawLiteral(token) { |
| return { |
| type: Syntax.Literal, |
| value: token.value, |
| raw: sliceSource(token.range[0], token.range[1]) |
| }; |
| } |
| |
| function createLocationMarker() { |
| var marker = {}; |
| |
| marker.range = [index, index]; |
| marker.loc = { |
| start: { |
| line: lineNumber, |
| column: index - lineStart |
| }, |
| end: { |
| line: lineNumber, |
| column: index - lineStart |
| } |
| }; |
| |
| marker.end = function () { |
| this.range[1] = index; |
| this.loc.end.line = lineNumber; |
| this.loc.end.column = index - lineStart; |
| }; |
| |
| marker.applyGroup = function (node) { |
| if (extra.range) { |
| node.groupRange = [this.range[0], this.range[1]]; |
| } |
| if (extra.loc) { |
| node.groupLoc = { |
| start: { |
| line: this.loc.start.line, |
| column: this.loc.start.column |
| }, |
| end: { |
| line: this.loc.end.line, |
| column: this.loc.end.column |
| } |
| }; |
| } |
| }; |
| |
| marker.apply = function (node) { |
| if (extra.range) { |
| node.range = [this.range[0], this.range[1]]; |
| } |
| if (extra.loc) { |
| node.loc = { |
| start: { |
| line: this.loc.start.line, |
| column: this.loc.start.column |
| }, |
| end: { |
| line: this.loc.end.line, |
| column: this.loc.end.column |
| } |
| }; |
| } |
| }; |
| |
| return marker; |
| } |
| |
| function trackGroupExpression() { |
| var marker, expr; |
| |
| skipComment(); |
| marker = createLocationMarker(); |
| expect('('); |
| |
| expr = parseExpression(); |
| |
| expect(')'); |
| |
| marker.end(); |
| marker.applyGroup(expr); |
| |
| return expr; |
| } |
| |
| function trackLeftHandSideExpression() { |
| var marker, expr; |
| |
| skipComment(); |
| marker = createLocationMarker(); |
| |
| expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression(); |
| |
| while (match('.') || match('[')) { |
| if (match('[')) { |
| expr = { |
| type: Syntax.MemberExpression, |
| computed: true, |
| object: expr, |
| property: parseComputedMember() |
| }; |
| marker.end(); |
| marker.apply(expr); |
| } else { |
| expr = { |
| type: Syntax.MemberExpression, |
| computed: false, |
| object: expr, |
| property: parseNonComputedMember() |
| }; |
| marker.end(); |
| marker.apply(expr); |
| } |
| } |
| |
| return expr; |
| } |
| |
| function trackLeftHandSideExpressionAllowCall() { |
| var marker, expr; |
| |
| skipComment(); |
| marker = createLocationMarker(); |
| |
| expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression(); |
| |
| while (match('.') || match('[') || match('(')) { |
| if (match('(')) { |
| expr = { |
| type: Syntax.CallExpression, |
| callee: expr, |
| 'arguments': parseArguments() |
| }; |
| marker.end(); |
| marker.apply(expr); |
| } else if (match('[')) { |
| expr = { |
| type: Syntax.MemberExpression, |
| computed: true, |
| object: expr, |
| property: parseComputedMember() |
| }; |
| marker.end(); |
| marker.apply(expr); |
| } else { |
| expr = { |
| type: Syntax.MemberExpression, |
| computed: false, |
| object: expr, |
| property: parseNonComputedMember() |
| }; |
| marker.end(); |
| marker.apply(expr); |
| } |
| } |
| |
| return expr; |
| } |
| |
| function filterGroup(node) { |
| var n, i, entry; |
| |
| n = (Object.prototype.toString.apply(node) === '[object Array]') ? [] : {}; |
| for (i in node) { |
| if (node.hasOwnProperty(i) && i !== 'groupRange' && i !== 'groupLoc') { |
| entry = node[i]; |
| if (entry === null || typeof entry !== 'object' || entry instanceof RegExp) { |
| n[i] = entry; |
| } else { |
| n[i] = filterGroup(entry); |
| } |
| } |
| } |
| return n; |
| } |
| |
| function wrapTrackingFunction(range, loc) { |
| |
| return function (parseFunction) { |
| |
| function isBinary(node) { |
| return node.type === Syntax.LogicalExpression || |
| node.type === Syntax.BinaryExpression; |
| } |
| |
| function visit(node) { |
| var start, end; |
| |
| if (isBinary(node.left)) { |
| visit(node.left); |
| } |
| if (isBinary(node.right)) { |
| visit(node.right); |
| } |
| |
| if (range) { |
| if (node.left.groupRange || node.right.groupRange) { |
| start = node.left.groupRange ? node.left.groupRange[0] : node.left.range[0]; |
| end = node.right.groupRange ? node.right.groupRange[1] : node.right.range[1]; |
| node.range = [start, end]; |
| } else if (typeof node.range === 'undefined') { |
| start = node.left.range[0]; |
| end = node.right.range[1]; |
| node.range = [start, end]; |
| } |
| } |
| if (loc) { |
| if (node.left.groupLoc || node.right.groupLoc) { |
| start = node.left.groupLoc ? node.left.groupLoc.start : node.left.loc.start; |
| end = node.right.groupLoc ? node.right.groupLoc.end : node.right.loc.end; |
| node.loc = { |
| start: start, |
| end: end |
| }; |
| } else if (typeof node.loc === 'undefined') { |
| node.loc = { |
| start: node.left.loc.start, |
| end: node.right.loc.end |
| }; |
| } |
| } |
| } |
| |
| return function () { |
| var marker, node; |
| |
| skipComment(); |
| |
| marker = createLocationMarker(); |
| node = parseFunction.apply(null, arguments); |
| marker.end(); |
| |
| if (range && typeof node.range === 'undefined') { |
| marker.apply(node); |
| } |
| |
| if (loc && typeof node.loc === 'undefined') { |
| marker.apply(node); |
| } |
| |
| if (isBinary(node)) { |
| visit(node); |
| } |
| |
| return node; |
| }; |
| }; |
| } |
| |
| function patch() { |
| |
| var wrapTracking; |
| |
| if (extra.comments) { |
| extra.skipComment = skipComment; |
| skipComment = scanComment; |
| } |
| |
| if (extra.raw) { |
| extra.createLiteral = createLiteral; |
| createLiteral = createRawLiteral; |
| } |
| |
| if (extra.range || extra.loc) { |
| |
| extra.parseGroupExpression = parseGroupExpression; |
| extra.parseLeftHandSideExpression = parseLeftHandSideExpression; |
| extra.parseLeftHandSideExpressionAllowCall = parseLeftHandSideExpressionAllowCall; |
| parseGroupExpression = trackGroupExpression; |
| parseLeftHandSideExpression = trackLeftHandSideExpression; |
| parseLeftHandSideExpressionAllowCall = trackLeftHandSideExpressionAllowCall; |
| |
| wrapTracking = wrapTrackingFunction(extra.range, extra.loc); |
| |
| extra.parseAdditiveExpression = parseAdditiveExpression; |
| extra.parseAssignmentExpression = parseAssignmentExpression; |
| extra.parseBitwiseANDExpression = parseBitwiseANDExpression; |
| extra.parseBitwiseORExpression = parseBitwiseORExpression; |
| extra.parseBitwiseXORExpression = parseBitwiseXORExpression; |
| extra.parseBlock = parseBlock; |
| extra.parseFunctionSourceElements = parseFunctionSourceElements; |
| extra.parseCatchClause = parseCatchClause; |
| extra.parseComputedMember = parseComputedMember; |
| extra.parseConditionalExpression = parseConditionalExpression; |
| extra.parseConstLetDeclaration = parseConstLetDeclaration; |
| extra.parseEqualityExpression = parseEqualityExpression; |
| extra.parseExpression = parseExpression; |
| extra.parseForVariableDeclaration = parseForVariableDeclaration; |
| extra.parseFunctionDeclaration = parseFunctionDeclaration; |
| extra.parseFunctionExpression = parseFunctionExpression; |
| extra.parseLogicalANDExpression = parseLogicalANDExpression; |
| extra.parseLogicalORExpression = parseLogicalORExpression; |
| extra.parseMultiplicativeExpression = parseMultiplicativeExpression; |
| extra.parseNewExpression = parseNewExpression; |
| extra.parseNonComputedProperty = parseNonComputedProperty; |
| extra.parseObjectProperty = parseObjectProperty; |
| extra.parseObjectPropertyKey = parseObjectPropertyKey; |
| extra.parsePostfixExpression = parsePostfixExpression; |
| extra.parsePrimaryExpression = parsePrimaryExpression; |
| extra.parseProgram = parseProgram; |
| extra.parsePropertyFunction = parsePropertyFunction; |
| extra.parseRelationalExpression = parseRelationalExpression; |
| extra.parseStatement = parseStatement; |
| extra.parseShiftExpression = parseShiftExpression; |
| extra.parseSwitchCase = parseSwitchCase; |
| extra.parseUnaryExpression = parseUnaryExpression; |
| extra.parseVariableDeclaration = parseVariableDeclaration; |
| extra.parseVariableIdentifier = parseVariableIdentifier; |
| |
| parseAdditiveExpression = wrapTracking(extra.parseAdditiveExpression); |
| parseAssignmentExpression = wrapTracking(extra.parseAssignmentExpression); |
| parseBitwiseANDExpression = wrapTracking(extra.parseBitwiseANDExpression); |
| parseBitwiseORExpression = wrapTracking(extra.parseBitwiseORExpression); |
| parseBitwiseXORExpression = wrapTracking(extra.parseBitwiseXORExpression); |
| parseBlock = wrapTracking(extra.parseBlock); |
| parseFunctionSourceElements = wrapTracking(extra.parseFunctionSourceElements); |
| parseCatchClause = wrapTracking(extra.parseCatchClause); |
| parseComputedMember = wrapTracking(extra.parseComputedMember); |
| parseConditionalExpression = wrapTracking(extra.parseConditionalExpression); |
| parseConstLetDeclaration = wrapTracking(extra.parseConstLetDeclaration); |
| parseEqualityExpression = wrapTracking(extra.parseEqualityExpression); |
| parseExpression = wrapTracking(extra.parseExpression); |
| parseForVariableDeclaration = wrapTracking(extra.parseForVariableDeclaration); |
| parseFunctionDeclaration = wrapTracking(extra.parseFunctionDeclaration); |
| parseFunctionExpression = wrapTracking(extra.parseFunctionExpression); |
| parseLeftHandSideExpression = wrapTracking(parseLeftHandSideExpression); |
| parseLogicalANDExpression = wrapTracking(extra.parseLogicalANDExpression); |
| parseLogicalORExpression = wrapTracking(extra.parseLogicalORExpression); |
| parseMultiplicativeExpression = wrapTracking(extra.parseMultiplicativeExpression); |
| parseNewExpression = wrapTracking(extra.parseNewExpression); |
| parseNonComputedProperty = wrapTracking(extra.parseNonComputedProperty); |
| parseObjectProperty = wrapTracking(extra.parseObjectProperty); |
| parseObjectPropertyKey = wrapTracking(extra.parseObjectPropertyKey); |
| parsePostfixExpression = wrapTracking(extra.parsePostfixExpression); |
| parsePrimaryExpression = wrapTracking(extra.parsePrimaryExpression); |
| parseProgram = wrapTracking(extra.parseProgram); |
| parsePropertyFunction = wrapTracking(extra.parsePropertyFunction); |
| parseRelationalExpression = wrapTracking(extra.parseRelationalExpression); |
| parseStatement = wrapTracking(extra.parseStatement); |
| parseShiftExpression = wrapTracking(extra.parseShiftExpression); |
| parseSwitchCase = wrapTracking(extra.parseSwitchCase); |
| parseUnaryExpression = wrapTracking(extra.parseUnaryExpression); |
| parseVariableDeclaration = wrapTracking(extra.parseVariableDeclaration); |
| parseVariableIdentifier = wrapTracking(extra.parseVariableIdentifier); |
| } |
| |
| if (typeof extra.tokens !== 'undefined') { |
| extra.advance = advance; |
| extra.scanRegExp = scanRegExp; |
| |
| advance = collectToken; |
| scanRegExp = collectRegex; |
| } |
| } |
| |
| function unpatch() { |
| if (typeof extra.skipComment === 'function') { |
| skipComment = extra.skipComment; |
| } |
| |
| if (extra.raw) { |
| createLiteral = extra.createLiteral; |
| } |
| |
| if (extra.range || extra.loc) { |
| parseAdditiveExpression = extra.parseAdditiveExpression; |
| parseAssignmentExpression = extra.parseAssignmentExpression; |
| parseBitwiseANDExpression = extra.parseBitwiseANDExpression; |
| parseBitwiseORExpression = extra.parseBitwiseORExpression; |
| parseBitwiseXORExpression = extra.parseBitwiseXORExpression; |
| parseBlock = extra.parseBlock; |
| parseFunctionSourceElements = extra.parseFunctionSourceElements; |
| parseCatchClause = extra.parseCatchClause; |
| parseComputedMember = extra.parseComputedMember; |
| parseConditionalExpression = extra.parseConditionalExpression; |
| parseConstLetDeclaration = extra.parseConstLetDeclaration; |
| parseEqualityExpression = extra.parseEqualityExpression; |
| parseExpression = extra.parseExpression; |
| parseForVariableDeclaration = extra.parseForVariableDeclaration; |
| parseFunctionDeclaration = extra.parseFunctionDeclaration; |
| parseFunctionExpression = extra.parseFunctionExpression; |
| parseGroupExpression = extra.parseGroupExpression; |
| parseLeftHandSideExpression = extra.parseLeftHandSideExpression; |
| parseLeftHandSideExpressionAllowCall = extra.parseLeftHandSideExpressionAllowCall; |
| parseLogicalANDExpression = extra.parseLogicalANDExpression; |
| parseLogicalORExpression = extra.parseLogicalORExpression; |
| parseMultiplicativeExpression = extra.parseMultiplicativeExpression; |
| parseNewExpression = extra.parseNewExpression; |
| parseNonComputedProperty = extra.parseNonComputedProperty; |
| parseObjectProperty = extra.parseObjectProperty; |
| parseObjectPropertyKey = extra.parseObjectPropertyKey; |
| parsePrimaryExpression = extra.parsePrimaryExpression; |
| parsePostfixExpression = extra.parsePostfixExpression; |
| parseProgram = extra.parseProgram; |
| parsePropertyFunction = extra.parsePropertyFunction; |
| parseRelationalExpression = extra.parseRelationalExpression; |
| parseStatement = extra.parseStatement; |
| parseShiftExpression = extra.parseShiftExpression; |
| parseSwitchCase = extra.parseSwitchCase; |
| parseUnaryExpression = extra.parseUnaryExpression; |
| parseVariableDeclaration = extra.parseVariableDeclaration; |
| parseVariableIdentifier = extra.parseVariableIdentifier; |
| } |
| |
| if (typeof extra.scanRegExp === 'function') { |
| advance = extra.advance; |
| scanRegExp = extra.scanRegExp; |
| } |
| } |
| |
| function stringToArray(str) { |
| var length = str.length, |
| result = [], |
| i; |
| for (i = 0; i < length; ++i) { |
| result[i] = str.charAt(i); |
| } |
| return result; |
| } |
| |
| function parse(code, options) { |
| var program, toString; |
| |
| toString = String; |
| if (typeof code !== 'string' && !(code instanceof String)) { |
| code = toString(code); |
| } |
| |
| source = code; |
| index = 0; |
| lineNumber = (source.length > 0) ? 1 : 0; |
| lineStart = 0; |
| length = source.length; |
| buffer = null; |
| state = { |
| allowIn: true, |
| labelSet: {}, |
| inFunctionBody: false, |
| inIteration: false, |
| inSwitch: false |
| }; |
| |
| extra = {}; |
| if (typeof options !== 'undefined') { |
| extra.range = (typeof options.range === 'boolean') && options.range; |
| extra.loc = (typeof options.loc === 'boolean') && options.loc; |
| extra.raw = (typeof options.raw === 'boolean') && options.raw; |
| if (typeof options.tokens === 'boolean' && options.tokens) { |
| extra.tokens = []; |
| } |
| if (typeof options.comment === 'boolean' && options.comment) { |
| extra.comments = []; |
| } |
| if (typeof options.tolerant === 'boolean' && options.tolerant) { |
| extra.errors = []; |
| } |
| } |
| |
| if (length > 0) { |
| if (typeof source[0] === 'undefined') { |
| // Try first to convert to a string. This is good as fast path |
| // for old IE which understands string indexing for string |
| // literals only and not for string object. |
| if (code instanceof String) { |
| source = code.valueOf(); |
| } |
| |
| // Force accessing the characters via an array. |
| if (typeof source[0] === 'undefined') { |
| source = stringToArray(code); |
| } |
| } |
| } |
| |
| patch(); |
| try { |
| program = parseProgram(); |
| if (typeof extra.comments !== 'undefined') { |
| filterCommentLocation(); |
| program.comments = extra.comments; |
| } |
| if (typeof extra.tokens !== 'undefined') { |
| filterTokenLocation(); |
| program.tokens = extra.tokens; |
| } |
| if (typeof extra.errors !== 'undefined') { |
| program.errors = extra.errors; |
| } |
| if (extra.range || extra.loc) { |
| program.body = filterGroup(program.body); |
| } |
| } catch (e) { |
| throw e; |
| } finally { |
| unpatch(); |
| extra = {}; |
| } |
| |
| return program; |
| } |
| |
| // Sync with package.json. |
| exports.version = '1.0.2'; |
| |
| exports.parse = parse; |
| |
| // Deep copy. |
| exports.Syntax = (function () { |
| var name, types = {}; |
| |
| if (typeof Object.create === 'function') { |
| types = Object.create(null); |
| } |
| |
| for (name in Syntax) { |
| if (Syntax.hasOwnProperty(name)) { |
| types[name] = Syntax[name]; |
| } |
| } |
| |
| if (typeof Object.freeze === 'function') { |
| Object.freeze(types); |
| } |
| |
| return types; |
| }()); |
| |
| })); |
| /* vim: set sw=4 ts=4 et tw=80 : */ |
| |
| })(null); |
| |
| (function(require,module){ |
| |
| var parse = require('esprima').parse; |
| var objectKeys = Object.keys || function (obj) { |
| var keys = []; |
| for (var key in obj) keys.push(key); |
| return keys; |
| }; |
| var forEach = function (xs, fn) { |
| if (xs.forEach) return xs.forEach(fn); |
| for (var i = 0; i < xs.length; i++) { |
| fn.call(xs, xs[i], i, xs); |
| } |
| }; |
| |
| var isArray = Array.isArray || function (xs) { |
| return Object.prototype.toString.call(xs) === '[object Array]'; |
| }; |
| |
| module.exports = function (src, opts, fn) { |
| if (typeof opts === 'function') { |
| fn = opts; |
| opts = {}; |
| } |
| if (typeof src === 'object') { |
| opts = src; |
| src = opts.source; |
| delete opts.source; |
| } |
| src = src === undefined ? opts.source : src; |
| opts.range = true; |
| if (typeof src !== 'string') src = String(src); |
| |
| var ast = parse(src, opts); |
| |
| var result = { |
| chunks : src.split(''), |
| toString : function () { return result.chunks.join('') }, |
| inspect : function () { return result.toString() } |
| }; |
| var index = 0; |
| |
| (function walk (node, parent) { |
| insertHelpers(node, parent, result.chunks); |
| |
| forEach(objectKeys(node), function (key) { |
| if (key === 'parent') return; |
| |
| var child = node[key]; |
| if (isArray(child)) { |
| forEach(child, function (c) { |
| if (c && typeof c.type === 'string') { |
| walk(c, node); |
| } |
| }); |
| } |
| else if (child && typeof child.type === 'string') { |
| insertHelpers(child, node, result.chunks); |
| walk(child, node); |
| } |
| }); |
| fn(node); |
| })(ast, undefined); |
| |
| return result; |
| }; |
| |
| function insertHelpers (node, parent, chunks) { |
| if (!node.range) return; |
| |
| node.parent = parent; |
| |
| node.source = function () { |
| return chunks.slice( |
| node.range[0], node.range[1] |
| ).join(''); |
| }; |
| |
| if (node.update && typeof node.update === 'object') { |
| var prev = node.update; |
| forEach(objectKeys(prev), function (key) { |
| update[key] = prev[key]; |
| }); |
| node.update = update; |
| } |
| else { |
| node.update = update; |
| } |
| |
| function update (s) { |
| chunks[node.range[0]] = s; |
| for (var i = node.range[0] + 1; i < node.range[1]; i++) { |
| chunks[i] = ''; |
| } |
| }; |
| } |
| |
| window.falafel = module.exports;})(function(){return {parse: esprima.parse};},{exports: {}}); |
| |
| var inBrowser = typeof window !== 'undefined' && this === window; |
| var parseAndModify = (inBrowser ? window.falafel : require("falafel")); |
| |
| (inBrowser ? window : exports).blanket = (function(){ |
| var linesToAddTracking = [ |
| "ExpressionStatement", |
| "BreakStatement" , |
| "ContinueStatement" , |
| "VariableDeclaration", |
| "ReturnStatement" , |
| "ThrowStatement" , |
| "TryStatement" , |
| "FunctionDeclaration" , |
| "IfStatement" , |
| "WhileStatement" , |
| "DoWhileStatement" , |
| "ForStatement" , |
| "ForInStatement" , |
| "SwitchStatement" , |
| "WithStatement" |
| ], |
| linesToAddBrackets = [ |
| "IfStatement" , |
| "WhileStatement" , |
| "DoWhileStatement" , |
| "ForStatement" , |
| "ForInStatement" , |
| "WithStatement" |
| ], |
| __blanket, |
| copynumber = Math.floor(Math.random()*1000), |
| coverageInfo = {},options = { |
| reporter: null, |
| adapter:null, |
| filter: null, |
| customVariable: null, |
| loader: null, |
| ignoreScriptError: false, |
| existingRequireJS:false, |
| autoStart: false, |
| timeout: 180, |
| ignoreCors: false, |
| branchTracking: false, |
| sourceURL: false, |
| debug:false, |
| engineOnly:false, |
| testReadyCallback:null, |
| commonJS:false, |
| instrumentCache:false, |
| modulePattern: null |
| }; |
| |
| if (inBrowser && typeof window.blanket !== 'undefined'){ |
| __blanket = window.blanket.noConflict(); |
| } |
| |
| _blanket = { |
| noConflict: function(){ |
| if (__blanket){ |
| return __blanket; |
| } |
| return _blanket; |
| }, |
| _getCopyNumber: function(){ |
| //internal method |
| //for differentiating between instances |
| return copynumber; |
| }, |
| extend: function(obj) { |
| //borrowed from underscore |
| _blanket._extend(_blanket,obj); |
| }, |
| _extend: function(dest,source){ |
| if (source) { |
| for (var prop in source) { |
| if ( dest[prop] instanceof Object && typeof dest[prop] !== "function"){ |
| _blanket._extend(dest[prop],source[prop]); |
| }else{ |
| dest[prop] = source[prop]; |
| } |
| } |
| } |
| }, |
| getCovVar: function(){ |
| var opt = _blanket.options("customVariable"); |
| if (opt){ |
| if (_blanket.options("debug")) {console.log("BLANKET-Using custom tracking variable:",opt);} |
| return inBrowser ? "window."+opt : opt; |
| } |
| return inBrowser ? "window._$blanket" : "_$jscoverage"; |
| }, |
| options: function(key,value){ |
| if (typeof key !== "string"){ |
| _blanket._extend(options,key); |
| }else if (typeof value === 'undefined'){ |
| return options[key]; |
| }else{ |
| options[key]=value; |
| } |
| }, |
| instrument: function(config, next){ |
| //check instrumented hash table, |
| //return instrumented code if available. |
| var inFile = config.inputFile, |
| inFileName = config.inputFileName; |
| //check instrument cache |
| if (_blanket.options("instrumentCache") && sessionStorage && sessionStorage.getItem("blanket_instrument_store-"+inFileName)){ |
| if (_blanket.options("debug")) {console.log("BLANKET-Reading instrumentation from cache: ",inFileName);} |
| next(sessionStorage.getItem("blanket_instrument_store-"+inFileName)); |
| }else{ |
| var sourceArray = _blanket._prepareSource(inFile); |
| _blanket._trackingArraySetup=[]; |
| var instrumented = parseAndModify(inFile,{loc:true,comment:true}, _blanket._addTracking(inFileName)); |
| instrumented = _blanket._trackingSetup(inFileName,sourceArray)+instrumented; |
| if (_blanket.options("sourceURL")){ |
| instrumented += "\n//@ sourceURL="+inFileName.replace("http://",""); |
| } |
| if (_blanket.options("debug")) {console.log("BLANKET-Instrumented file: ",inFileName);} |
| if (_blanket.options("instrumentCache") && sessionStorage){ |
| if (_blanket.options("debug")) {console.log("BLANKET-Saving instrumentation to cache: ",inFileName);} |
| sessionStorage.setItem("blanket_instrument_store-"+inFileName,instrumented); |
| } |
| next(instrumented); |
| } |
| }, |
| _trackingArraySetup: [], |
| _branchingArraySetup: [], |
| _prepareSource: function(source){ |
| return source.replace(/\\/g,"\\\\").replace(/'/g,"\\'").replace(/(\r\n|\n|\r)/gm,"\n").split('\n'); |
| }, |
| _trackingSetup: function(filename,sourceArray){ |
| var branches = _blanket.options("branchTracking"); |
| var sourceString = sourceArray.join("',\n'"); |
| var intro = ""; |
| var covVar = _blanket.getCovVar(); |
| |
| intro += "if (typeof "+covVar+" === 'undefined') "+covVar+" = {};\n"; |
| if (branches){ |
| intro += "var _$branchFcn=function(f,l,c,r){ "; |
| intro += "if (!!r) { "; |
| intro += covVar+"[f].branchData[l][c][0] = "+covVar+"[f].branchData[l][c][0] || [];"; |
| intro += covVar+"[f].branchData[l][c][0].push(r); }"; |
| intro += "else { "; |
| intro += covVar+"[f].branchData[l][c][1] = "+covVar+"[f].branchData[l][c][1] || [];"; |
| intro += covVar+"[f].branchData[l][c][1].push(r); }"; |
| intro += "return r;};\n"; |
| } |
| intro += "if (typeof "+covVar+"['"+filename+"'] === 'undefined'){"; |
| |
| intro += covVar+"['"+filename+"']=[];\n"; |
| if (branches){ |
| intro += covVar+"['"+filename+"'].branchData=[];\n"; |
| } |
| intro += covVar+"['"+filename+"'].source=['"+sourceString+"'];\n"; |
| //initialize array values |
| _blanket._trackingArraySetup.sort(function(a,b){ |
| return parseInt(a,10) > parseInt(b,10); |
| }).forEach(function(item){ |
| intro += covVar+"['"+filename+"']["+item+"]=0;\n"; |
| }); |
| if (branches){ |
| _blanket._branchingArraySetup.sort(function(a,b){ |
| return a.line > b.line; |
| }).sort(function(a,b){ |
| return a.column > b.column; |
| }).forEach(function(item){ |
| if (item.file === filename){ |
| intro += "if (typeof "+ covVar+"['"+filename+"'].branchData["+item.line+"] === 'undefined'){\n"; |
| intro += covVar+"['"+filename+"'].branchData["+item.line+"]=[];\n"; |
| intro += "}"; |
| intro += covVar+"['"+filename+"'].branchData["+item.line+"]["+item.column+"] = [];\n"; |
| intro += covVar+"['"+filename+"'].branchData["+item.line+"]["+item.column+"].consequent = "+JSON.stringify(item.consequent)+";\n"; |
| intro += covVar+"['"+filename+"'].branchData["+item.line+"]["+item.column+"].alternate = "+JSON.stringify(item.alternate)+";\n"; |
| } |
| }); |
| } |
| intro += "}"; |
| |
| return intro; |
| }, |
| _blockifyIf: function(node){ |
| if (linesToAddBrackets.indexOf(node.type) > -1){ |
| var bracketsExistObject = node.consequent || node.body; |
| var bracketsExistAlt = node.alternate; |
| if( bracketsExistAlt && bracketsExistAlt.type !== "BlockStatement") { |
| bracketsExistAlt.update("{\n"+bracketsExistAlt.source()+"}\n"); |
| } |
| if( bracketsExistObject && bracketsExistObject.type !== "BlockStatement") { |
| bracketsExistObject.update("{\n"+bracketsExistObject.source()+"}\n"); |
| } |
| } |
| }, |
| _trackBranch: function(node,filename){ |
| //recursive on consequent and alternative |
| var line = node.loc.start.line; |
| var col = node.loc.start.column; |
| |
| _blanket._branchingArraySetup.push({ |
| line: line, |
| column: col, |
| file:filename, |
| consequent: node.consequent.loc, |
| alternate: node.alternate.loc |
| }); |
| |
| var source = node.source(); |
| var updated = "_$branchFcn"+ |
| "('"+filename+"',"+line+","+col+","+source.slice(0,source.indexOf("?"))+ |
| ")"+source.slice(source.indexOf("?")); |
| node.update(updated); |
| }, |
| _addTracking: function (filename) { |
| //falafel doesn't take a file name |
| //so we include the filename in a closure |
| //and return the function to falafel |
| var covVar = _blanket.getCovVar(); |
| |
| return function(node){ |
| _blanket._blockifyIf(node); |
| |
| if (linesToAddTracking.indexOf(node.type) > -1 && node.parent.type !== "LabeledStatement") { |
| _blanket._checkDefs(node,filename); |
| if (node.type === "VariableDeclaration" && |
| (node.parent.type === "ForStatement" || node.parent.type === "ForInStatement")){ |
| return; |
| } |
| if (node.loc && node.loc.start){ |
| node.update(covVar+"['"+filename+"']["+node.loc.start.line+"]++;\n"+node.source()); |
| _blanket._trackingArraySetup.push(node.loc.start.line); |
| }else{ |
| //I don't think we can handle a node with no location |
| throw new Error("The instrumenter encountered a node with no location: "+Object.keys(node)); |
| } |
| }else if (_blanket.options("branchTracking") && node.type === "ConditionalExpression"){ |
| _blanket._trackBranch(node,filename); |
| } |
| }; |
| }, |
| _checkDefs: function(node,filename){ |
| // Make sure developers don't redefine window. if they do, inform them it is wrong. |
| if (inBrowser){ |
| if (node.type === "VariableDeclaration" && node.declarations) { |
| node.declarations.forEach(function(declaration) { |
| if (declaration.id.name === "window") { |
| throw new Error("Instrumentation error, you cannot redefine the 'window' variable in " + filename + ":" + node.loc.start.line); |
| } |
| }); |
| } |
| if (node.type === "FunctionDeclaration" && node.params) { |
| node.params.forEach(function(param) { |
| if (param.name === "window") { |
| throw new Error("Instrumentation error, you cannot redefine the 'window' variable in " + filename + ":" + node.loc.start.line); |
| } |
| }); |
| } |
| //Make sure developers don't redefine the coverage variable |
| if (node.type === "ExpressionStatement" && |
| node.expression && node.expression.left && |
| node.expression.left.object && node.expression.left.property && |
| node.expression.left.object.name + |
| "." + node.expression.left.property.name === _blanket.getCovVar()) { |
| throw new Error("Instrumentation error, you cannot redefine the coverage variable in " + filename + ":" + node.loc.start.line); |
| } |
| }else{ |
| //Make sure developers don't redefine the coverage variable in node |
| if (node.type === "ExpressionStatement" && |
| node.expression && node.expression.left && |
| !node.expression.left.object && !node.expression.left.property && |
| node.expression.left.name === _blanket.getCovVar()) { |
| throw new Error("Instrumentation error, you cannot redefine the coverage variable in " + filename + ":" + node.loc.start.line); |
| } |
| } |
| }, |
| setupCoverage: function(){ |
| coverageInfo.instrumentation = "blanket"; |
| coverageInfo.stats = { |
| "suites": 0, |
| "tests": 0, |
| "passes": 0, |
| "pending": 0, |
| "failures": 0, |
| "start": new Date() |
| }; |
| }, |
| _checkIfSetup: function(){ |
| if (!coverageInfo.stats){ |
| throw new Error("You must call blanket.setupCoverage() first."); |
| } |
| }, |
| onTestStart: function(){ |
| if (_blanket.options("debug")) {console.log("BLANKET-Test event started");} |
| this._checkIfSetup(); |
| coverageInfo.stats.tests++; |
| coverageInfo.stats.pending++; |
| }, |
| onTestDone: function(total,passed){ |
| this._checkIfSetup(); |
| if(passed === total){ |
| coverageInfo.stats.passes++; |
| }else{ |
| coverageInfo.stats.failures++; |
| } |
| coverageInfo.stats.pending--; |
| }, |
| onModuleStart: function(){ |
| this._checkIfSetup(); |
| coverageInfo.stats.suites++; |
| }, |
| onTestsDone: function(){ |
| if (_blanket.options("debug")) {console.log("BLANKET-Test event done");} |
| this._checkIfSetup(); |
| coverageInfo.stats.end = new Date(); |
| |
| if (inBrowser){ |
| this.report(coverageInfo); |
| }else{ |
| if (!_blanket.options("branchTracking")){ |
| delete (inBrowser ? window : global)[_blanket.getCovVar()].branchFcn; |
| } |
| this.options("reporter").call(this,coverageInfo); |
| } |
| } |
| }; |
| return _blanket; |
| })(); |
| |
| (function(_blanket){ |
| var oldOptions = _blanket.options; |
| _blanket.extend({ |
| outstandingRequireFiles:[], |
| options: function(key,value){ |
| var newVal={}; |
| |
| if (typeof key !== "string"){ |
| //key is key/value map |
| oldOptions(key); |
| newVal = key; |
| }else if (typeof value === 'undefined'){ |
| //accessor |
| return oldOptions(key); |
| }else{ |
| //setter |
| oldOptions(key,value); |
| newVal[key] = value; |
| } |
| |
| if (newVal.adapter){ |
| _blanket._loadFile(newVal.adapter); |
| } |
| if (newVal.loader){ |
| _blanket._loadFile(newVal.loader); |
| } |
| }, |
| requiringFile: function(filename,done){ |
| if (typeof filename === "undefined"){ |
| _blanket.outstandingRequireFiles=[]; |
| }else if (typeof done === "undefined"){ |
| _blanket.outstandingRequireFiles.push(filename); |
| }else{ |
| _blanket.outstandingRequireFiles.splice(_blanket.outstandingRequireFiles.indexOf(filename),1); |
| } |
| }, |
| requireFilesLoaded: function(){ |
| return _blanket.outstandingRequireFiles.length === 0; |
| }, |
| showManualLoader: function(){ |
| if (document.getElementById("blanketLoaderDialog")){ |
| return; |
| } |
| //copied from http://blog.avtex.com/2012/01/26/cross-browser-css-only-modal-box/ |
| var loader = "<div class='blanketDialogOverlay'>"; |
| loader += " </div>"; |
| loader += "<div class='blanketDialogVerticalOffset'>"; |
| loader += "<div class='blanketDialogBox'>"; |
| loader += "<b>Error:</b> Blanket.js encountered a cross origin request error while instrumenting the source files. "; |
| loader += "<br><br>This is likely caused by the source files being referenced locally (using the file:// protocol). "; |
| loader += "<br><br>Some solutions include <a href='http://askubuntu.com/questions/160245/making-google-chrome-option-allow-file-access-from-files-permanent' target='_blank'>starting Chrome with special flags</a>, <a target='_blank' href='https://github.com/remy/servedir'>running a server locally</a>, or using a browser without these CORS restrictions (Safari)."; |
| loader += "<br>"; |
| if (typeof FileReader !== "undefined"){ |
| loader += "<br>Or, try the experimental loader. When prompted, simply click on the directory containing all the source files you want covered."; |
| loader += "<a href='javascript:document.getElementById(\"fileInput\").click();'>Start Loader</a>"; |
| loader += "<input type='file' type='application/x-javascript' accept='application/x-javascript' webkitdirectory id='fileInput' multiple onchange='window.blanket.manualFileLoader(this.files)' style='visibility:hidden;position:absolute;top:-50;left:-50'/>"; |
| } |
| loader += "<br><span style='float:right;cursor:pointer;' onclick=document.getElementById('blanketLoaderDialog').style.display='none';>Close</span>"; |
| loader += "<div style='clear:both'></div>"; |
| loader += "</div></div>"; |
| |
| var css = ".blanketDialogWrapper {"; |
| css += "display:block;"; |
| css += "position:fixed;"; |
| css += "z-index:40001; }"; |
| |
| css += ".blanketDialogOverlay {"; |
| css += "position:fixed;"; |
| css += "width:100%;"; |
| css += "height:100%;"; |
| css += "background-color:black;"; |
| css += "opacity:.5; "; |
| css += "-ms-filter:'progid:DXImageTransform.Microsoft.Alpha(Opacity=50)'; "; |
| css += "filter:alpha(opacity=50); "; |
| css += "z-index:40001; }"; |
| |
| css += ".blanketDialogVerticalOffset { "; |
| css += "position:fixed;"; |
| css += "top:30%;"; |
| css += "width:100%;"; |
| css += "z-index:40002; }"; |
| |
| css += ".blanketDialogBox { "; |
| css += "width:405px; "; |
| css += "position:relative;"; |
| css += "margin:0 auto;"; |
| css += "background-color:white;"; |
| css += "padding:10px;"; |
| css += "border:1px solid black; }"; |
| |
| var dom = document.createElement("style"); |
| dom.innerHTML = css; |
| document.head.appendChild(dom); |
| |
| var div = document.createElement("div"); |
| div.id = "blanketLoaderDialog"; |
| div.className = "blanketDialogWrapper"; |
| div.innerHTML = loader; |
| document.body.insertBefore(div,document.body.firstChild); |
| |
| }, |
| manualFileLoader: function(files){ |
| var toArray =Array.prototype.slice; |
| files = toArray.call(files).filter(function(item){ |
| return item.type !== ""; |
| }); |
| var sessionLength = files.length-1; |
| var sessionIndx=0; |
| var sessionArray = {}; |
| if (sessionStorage["blanketSessionLoader"]){ |
| sessionArray = JSON.parse(sessionStorage["blanketSessionLoader"]); |
| } |
| |
| |
| var fileLoader = function(event){ |
| var fileContent = event.currentTarget.result; |
| var file = files[sessionIndx]; |
| var filename = file.webkitRelativePath && file.webkitRelativePath !== '' ? file.webkitRelativePath : file.name; |
| sessionArray[filename] = fileContent; |
| sessionIndx++; |
| if (sessionIndx === sessionLength){ |
| sessionStorage.setItem("blanketSessionLoader", JSON.stringify(sessionArray)); |
| document.location.reload(); |
| }else{ |
| readFile(files[sessionIndx]); |
| } |
| }; |
| function readFile(file){ |
| var reader = new FileReader(); |
| reader.onload = fileLoader; |
| reader.readAsText(file); |
| } |
| readFile(files[sessionIndx]); |
| }, |
| _loadFile: function(path){ |
| if (typeof path !== "undefined"){ |
| var request = new XMLHttpRequest(); |
| request.open('GET', path, false); |
| request.send(); |
| _blanket._addScript(request.responseText); |
| } |
| }, |
| _addScript: function(data){ |
| var script = document.createElement("script"); |
| script.type = "text/javascript"; |
| script.text = data; |
| (document.body || document.getElementsByTagName('head')[0]).appendChild(script); |
| }, |
| hasAdapter: function(callback){ |
| return _blanket.options("adapter") !== null; |
| }, |
| report: function(coverage_data){ |
| if (!document.getElementById("blanketLoaderDialog")){ |
| //all found, clear it |
| _blanket.blanketSession = null; |
| } |
| coverage_data.files = window._$blanket; |
| var require = blanket.options("commonJS") ? blanket._commonjs.require : window.require; |
| |
| // Check if we have any covered files that requires reporting |
| // otherwise just exit gracefully. |
| if (!coverage_data.files || !Object.keys(coverage_data.files).length) { |
| if (_blanket.options("debug")) {console.log("BLANKET-Reporting No files were instrumented.");} |
| return; |
| } |
| |
| if (typeof coverage_data.files.branchFcn !== "undefined"){ |
| delete coverage_data.files.branchFcn; |
| } |
| if (typeof _blanket.options("reporter") === "string"){ |
| _blanket._loadFile(_blanket.options("reporter")); |
| _blanket.customReporter(coverage_data,_blanket.options("reporter_options")); |
| }else if (typeof _blanket.options("reporter") === "function"){ |
| _blanket.options("reporter")(coverage_data); |
| }else if (typeof _blanket.defaultReporter === 'function'){ |
| _blanket.defaultReporter(coverage_data); |
| }else{ |
| throw new Error("no reporter defined."); |
| } |
| }, |
| _bindStartTestRunner: function(bindEvent,startEvent){ |
| if (bindEvent){ |
| bindEvent(startEvent); |
| }else{ |
| window.addEventListener("load",startEvent,false); |
| } |
| }, |
| _loadSourceFiles: function(callback){ |
| var require = blanket.options("commonJS") ? blanket._commonjs.require : window.require; |
| function copy(o){ |
| var _copy = Object.create( Object.getPrototypeOf(o) ); |
| var propNames = Object.getOwnPropertyNames(o); |
| |
| propNames.forEach(function(name){ |
| var desc = Object.getOwnPropertyDescriptor(o, name); |
| Object.defineProperty(_copy, name, desc); |
| }); |
| |
| return _copy; |
| } |
| if (_blanket.options("debug")) {console.log("BLANKET-Collecting page scripts");} |
| var scripts = _blanket.utils.collectPageScripts(); |
| //_blanket.options("filter",scripts); |
| if (scripts.length === 0){ |
| callback(); |
| }else{ |
| |
| //check session state |
| if (sessionStorage["blanketSessionLoader"]){ |
| _blanket.blanketSession = JSON.parse(sessionStorage["blanketSessionLoader"]); |
| } |
| |
| scripts.forEach(function(file,indx){ |
| _blanket.utils.cache[file+".js"]={ |
| loaded:false |
| }; |
| }); |
| |
| var currScript=-1; |
| _blanket.utils.loadAll(function(test){ |
| if (test){ |
| return typeof scripts[currScript+1] !== 'undefined'; |
| } |
| currScript++; |
| if (currScript >= scripts.length){ |
| return null; |
| } |
| return scripts[currScript]+".js"; |
| },callback); |
| } |
| }, |
| beforeStartTestRunner: function(opts){ |
| opts = opts || {}; |
| opts.checkRequirejs = typeof opts.checkRequirejs === "undefined" ? true : opts.checkRequirejs; |
| opts.callback = opts.callback || function() { }; |
| opts.coverage = typeof opts.coverage === "undefined" ? true : opts.coverage; |
| if (opts.coverage) { |
| _blanket._bindStartTestRunner(opts.bindEvent, |
| function(){ |
| _blanket._loadSourceFiles(function() { |
| |
| var allLoaded = function(){ |
| return opts.condition ? opts.condition() : _blanket.requireFilesLoaded(); |
| }; |
| var check = function() { |
| if (allLoaded()) { |
| if (_blanket.options("debug")) {console.log("BLANKET-All files loaded, init start test runner callback.");} |
| var cb = _blanket.options("testReadyCallback"); |
| |
| if (cb){ |
| if (typeof cb === "function"){ |
| cb(opts.callback); |
| }else if (typeof cb === "string"){ |
| _blanket._addScript(cb); |
| opts.callback(); |
| } |
| }else{ |
| opts.callback(); |
| } |
| } else { |
| setTimeout(check, 13); |
| } |
| }; |
| check(); |
| }); |
| }); |
| }else{ |
| opts.callback(); |
| } |
| }, |
| utils: { |
| qualifyURL: function (url) { |
| //http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue |
| var a = document.createElement('a'); |
| a.href = url; |
| return a.href; |
| } |
| } |
| }); |
| |
| })(blanket); |
| |
| blanket.defaultReporter = function(coverage){ |
| var cssSytle = "#blanket-main {margin:2px;background:#EEE;color:#333;clear:both;font-family:'Helvetica Neue Light', 'HelveticaNeue-Light', 'Helvetica Neue', Calibri, Helvetica, Arial, sans-serif; font-size:17px;} #blanket-main a {color:#333;text-decoration:none;} #blanket-main a:hover {text-decoration:underline;} .blanket {margin:0;padding:5px;clear:both;border-bottom: 1px solid #FFFFFF;} .bl-error {color:red;}.bl-success {color:#5E7D00;} .bl-file{width:auto;} .bl-cl{float:left;} .blanket div.rs {margin-left:50px; width:150px; float:right} .bl-nb {padding-right:10px;} #blanket-main a.bl-logo {color: #EB1764;cursor: pointer;font-weight: bold;text-decoration: none} .bl-source{ overflow-x:scroll; background-color: #FFFFFF; border: 1px solid #CBCBCB; color: #363636; margin: 25px 20px; width: 80%;} .bl-source div{white-space: pre;font-family: monospace;} .bl-source > div > span:first-child{background-color: #EAEAEA;color: #949494;display: inline-block;padding: 0 10px;text-align: center;width: 30px;} .bl-source .miss{background-color:#e6c3c7} .bl-source span.branchWarning{color:#000;background-color:yellow;} .bl-source span.branchOkay{color:#000;background-color:transparent;}", |
| successRate = 60, |
| head = document.head, |
| fileNumber = 0, |
| body = document.body, |
| headerContent, |
| hasBranchTracking = Object.keys(coverage.files).some(function(elem){ |
| return typeof coverage.files[elem].branchData !== 'undefined'; |
| }), |
| bodyContent = "<div id='blanket-main'><div class='blanket bl-title'><div class='bl-cl bl-file'><a href='http://alex-seville.github.com/blanket/' target='_blank' class='bl-logo'>Blanket.js</a> results</div><div class='bl-cl rs'>Coverage (%)</div><div class='bl-cl rs'>Covered/Total Smts.</div>"+(hasBranchTracking ? "<div class='bl-cl rs'>Covered/Total Branches</div>":"")+"<div style='clear:both;'></div></div>", |
| fileTemplate = "<div class='blanket {{statusclass}}'><div class='bl-cl bl-file'><span class='bl-nb'>{{fileNumber}}.</span><a href='javascript:blanket_toggleSource(\"file-{{fileNumber}}\")'>{{file}}</a></div><div class='bl-cl rs'>{{percentage}} %</div><div class='bl-cl rs'>{{numberCovered}}/{{totalSmts}}</div>"+( hasBranchTracking ? "<div class='bl-cl rs'>{{passedBranches}}/{{totalBranches}}</div>" : "" )+"<div id='file-{{fileNumber}}' class='bl-source' style='display:none;'>{{source}}</div><div style='clear:both;'></div></div>"; |
| grandTotalTemplate = "<div class='blanket grand-total {{statusclass}}'><div class='bl-cl'>{{rowTitle}}</div><div class='bl-cl rs'>{{percentage}} %</div><div class='bl-cl rs'>{{numberCovered}}/{{totalSmts}}</div>"+( hasBranchTracking ? "<div class='bl-cl rs'>{{passedBranches}}/{{totalBranches}}</div>" : "" ) + "<div style='clear:both;'></div></div>"; |
| |
| function blanket_toggleSource(id) { |
| var element = document.getElementById(id); |
| if(element.style.display === 'block') { |
| element.style.display = 'none'; |
| } else { |
| element.style.display = 'block'; |
| } |
| } |
| |
| |
| var script = document.createElement("script"); |
| script.type = "text/javascript"; |
| script.text = blanket_toggleSource.toString().replace('function ' + blanket_toggleSource.name, 'function blanket_toggleSource'); |
| body.appendChild(script); |
| |
| var percentage = function(number, total) { |
| return (Math.round(((number/total) * 100)*100)/100); |
| }; |
| |
| var appendTag = function (type, el, str) { |
| var dom = document.createElement(type); |
| dom.innerHTML = str; |
| el.appendChild(dom); |
| }; |
| |
| function escapeInvalidXmlChars(str) { |
| return str.replace(/\&/g, "&") |
| .replace(/</g, "<") |
| .replace(/\>/g, ">") |
| .replace(/\"/g, """) |
| .replace(/\'/g, "'"); |
| } |
| |
| function isBranchFollowed(data,bool){ |
| var mode = bool ? 0 : 1; |
| if (typeof data === 'undefined' || |
| typeof data === null || |
| typeof data[mode] === 'undefined'){ |
| return false; |
| } |
| return data[mode].length > 0; |
| } |
| |
| var branchStack = []; |
| |
| function branchReport(colsIndex,src,cols,offset,lineNum){ |
| var newsrc=""; |
| var postfix=""; |
| if (branchStack.length > 0){ |
| newsrc += "<span class='" + (isBranchFollowed(branchStack[0][1],branchStack[0][1].consequent === branchStack[0][0]) ? 'branchOkay' : 'branchWarning') + "'>"; |
| if (branchStack[0][0].end.line === lineNum){ |
| newsrc += escapeInvalidXmlChars(src.slice(0,branchStack[0][0].end.column)) + "</span>"; |
| src = src.slice(branchStack[0][0].end.column); |
| branchStack.shift(); |
| if (branchStack.length > 0){ |
| newsrc += "<span class='" + (isBranchFollowed(branchStack[0][1],false) ? 'branchOkay' : 'branchWarning') + "'>"; |
| if (branchStack[0][0].end.line === lineNum){ |
| newsrc += escapeInvalidXmlChars(src.slice(0,branchStack[0][0].end.column)) + "</span>"; |
| src = src.slice(branchStack[0][0].end.column); |
| branchStack.shift(); |
| if (!cols){ |
| return {src: newsrc + escapeInvalidXmlChars(src) ,cols:cols}; |
| } |
| } |
| else if (!cols){ |
| return {src: newsrc + escapeInvalidXmlChars(src) + "</span>",cols:cols}; |
| } |
| else{ |
| postfix = "</span>"; |
| } |
| }else if (!cols){ |
| return {src: newsrc + escapeInvalidXmlChars(src) ,cols:cols}; |
| } |
| }else if(!cols){ |
| return {src: newsrc + escapeInvalidXmlChars(src) + "</span>",cols:cols}; |
| }else{ |
| postfix = "</span>"; |
| } |
| } |
| var thisline = cols[colsIndex]; |
| //consequent |
| |
| var cons = thisline.consequent; |
| if (cons.start.line > lineNum){ |
| branchStack.unshift([thisline.alternate,thisline]); |
| branchStack.unshift([cons,thisline]); |
| src = escapeInvalidXmlChars(src); |
| }else{ |
| var style = "<span class='" + (isBranchFollowed(thisline,true) ? 'branchOkay' : 'branchWarning') + "'>"; |
| newsrc += escapeInvalidXmlChars(src.slice(0,cons.start.column-offset)) + style; |
| |
| if (cols.length > colsIndex+1 && |
| cols[colsIndex+1].consequent.start.line === lineNum && |
| cols[colsIndex+1].consequent.start.column-offset < cols[colsIndex].consequent.end.column-offset) |
| { |
| var res = branchReport(colsIndex+1,src.slice(cons.start.column-offset,cons.end.column-offset),cols,cons.start.column-offset,lineNum); |
| newsrc += res.src; |
| cols = res.cols; |
| cols[colsIndex+1] = cols[colsIndex+2]; |
| cols.length--; |
| }else{ |
| newsrc += escapeInvalidXmlChars(src.slice(cons.start.column-offset,cons.end.column-offset)); |
| } |
| newsrc += "</span>"; |
| |
| var alt = thisline.alternate; |
| if (alt.start.line > lineNum){ |
| newsrc += escapeInvalidXmlChars(src.slice(cons.end.column-offset)); |
| branchStack.unshift([alt,thisline]); |
| }else{ |
| newsrc += escapeInvalidXmlChars(src.slice(cons.end.column-offset,alt.start.column-offset)); |
| style = "<span class='" + (isBranchFollowed(thisline,false) ? 'branchOkay' : 'branchWarning') + "'>"; |
| newsrc += style; |
| if (cols.length > colsIndex+1 && |
| cols[colsIndex+1].consequent.start.line === lineNum && |
| cols[colsIndex+1].consequent.start.column-offset < cols[colsIndex].alternate.end.column-offset) |
| { |
| var res2 = branchReport(colsIndex+1,src.slice(alt.start.column-offset,alt.end.column-offset),cols,alt.start.column-offset,lineNum); |
| newsrc += res2.src; |
| cols = res2.cols; |
| cols[colsIndex+1] = cols[colsIndex+2]; |
| cols.length--; |
| }else{ |
| newsrc += escapeInvalidXmlChars(src.slice(alt.start.column-offset,alt.end.column-offset)); |
| } |
| newsrc += "</span>"; |
| newsrc += escapeInvalidXmlChars(src.slice(alt.end.column-offset)); |
| src = newsrc; |
| } |
| } |
| return {src:src+postfix, cols:cols}; |
| } |
| |
| var isUndefined = function(item){ |
| return typeof item !== 'undefined'; |
| }; |
| |
| var files = coverage.files; |
| var totals = { |
| totalSmts: 0, |
| numberOfFilesCovered: 0, |
| passedBranches: 0, |
| totalBranches: 0, |
| moduleTotalStatements : {}, |
| moduleTotalCoveredStatements : {}, |
| moduleTotalBranches : {}, |
| moduleTotalCoveredBranches : {} |
| }; |
| |
| // check if a data-cover-modulepattern was provided for per-module coverage reporting |
| var modulePattern = _blanket.options("modulePattern"); |
| var modulePatternRegex = ( modulePattern ? new RegExp(modulePattern) : null ); |
| |
| for(var file in files) |
| { |
| fileNumber++; |
| |
| var statsForFile = files[file], |
| totalSmts = 0, |
| numberOfFilesCovered = 0, |
| code = [], |
| i; |
| |
| |
| var end = []; |
| for(i = 0; i < statsForFile.source.length; i +=1){ |
| var src = statsForFile.source[i]; |
| |
| if (branchStack.length > 0 || |
| typeof statsForFile.branchData !== 'undefined') |
| { |
| if (typeof statsForFile.branchData[i+1] !== 'undefined') |
| { |
| var cols = statsForFile.branchData[i+1].filter(isUndefined); |
| var colsIndex=0; |
| |
| |
| src = branchReport(colsIndex,src,cols,0,i+1).src; |
| |
| }else if (branchStack.length){ |
| src = branchReport(0,src,null,0,i+1).src; |
| }else{ |
| src = escapeInvalidXmlChars(src); |
| } |
| }else{ |
| src = escapeInvalidXmlChars(src); |
| } |
| var lineClass=""; |
| if(statsForFile[i+1]) { |
| numberOfFilesCovered += 1; |
| totalSmts += 1; |
| lineClass = 'hit'; |
| }else{ |
| if(statsForFile[i+1] === 0){ |
| totalSmts++; |
| lineClass = 'miss'; |
| } |
| } |
| code[i + 1] = "<div class='"+lineClass+"'><span class=''>"+(i + 1)+"</span>"+src+"</div>"; |
| } |
| totals.totalSmts += totalSmts; |
| totals.numberOfFilesCovered += numberOfFilesCovered; |
| var totalBranches=0; |
| var passedBranches=0; |
| if (typeof statsForFile.branchData !== 'undefined'){ |
| for(var j=0;j<statsForFile.branchData.length;j++){ |
| if (typeof statsForFile.branchData[j] !== 'undefined'){ |
| for(var k=0;k<statsForFile.branchData[j].length;k++){ |
| if (typeof statsForFile.branchData[j][k] !== 'undefined'){ |
| totalBranches++; |
| if (typeof statsForFile.branchData[j][k][0] !== 'undefined' && |
| statsForFile.branchData[j][k][0].length > 0 && |
| typeof statsForFile.branchData[j][k][1] !== 'undefined' && |
| statsForFile.branchData[j][k][1].length > 0){ |
| passedBranches++; |
| } |
| } |
| } |
| } |
| } |
| } |
| totals.passedBranches += passedBranches; |
| totals.totalBranches += totalBranches; |
| |
| // if "data-cover-modulepattern" was provided, |
| // track totals per module name as well as globally |
| if (modulePatternRegex) { |
| var moduleName = file.match(modulePatternRegex)[1]; |
| |
| if(!totals.moduleTotalStatements.hasOwnProperty(moduleName)) { |
| totals.moduleTotalStatements[moduleName] = 0; |
| totals.moduleTotalCoveredStatements[moduleName] = 0; |
| } |
| |
| totals.moduleTotalStatements[moduleName] += totalSmts; |
| totals.moduleTotalCoveredStatements[moduleName] += numberOfFilesCovered; |
| |
| if(!totals.moduleTotalBranches.hasOwnProperty(moduleName)) { |
| totals.moduleTotalBranches[moduleName] = 0; |
| totals.moduleTotalCoveredBranches[moduleName] = 0; |
| } |
| |
| totals.moduleTotalBranches[moduleName] += totalBranches; |
| totals.moduleTotalCoveredBranches[moduleName] += passedBranches; |
| } |
| |
| var result = percentage(numberOfFilesCovered, totalSmts); |
| |
| var output = fileTemplate.replace("{{file}}", file) |
| .replace("{{percentage}}",result) |
| .replace("{{numberCovered}}", numberOfFilesCovered) |
| .replace(/\{\{fileNumber\}\}/g, fileNumber) |
| .replace("{{totalSmts}}", totalSmts) |
| .replace("{{totalBranches}}", totalBranches) |
| .replace("{{passedBranches}}", passedBranches) |
| .replace("{{source}}", code.join(" ")); |
| if(result < successRate) |
| { |
| output = output.replace("{{statusclass}}", "bl-error"); |
| } else { |
| output = output.replace("{{statusclass}}", "bl-success"); |
| } |
| bodyContent += output; |
| } |
| |
| // create temporary function for use by the global totals reporter, |
| // as well as the per-module totals reporter |
| var createAggregateTotal = function(numSt, numCov, numBranch, numCovBr, moduleName) { |
| |
| var totalPercent = percentage(numCov, numSt); |
| var statusClass = totalPercent < successRate ? "bl-error" : "bl-success"; |
| var rowTitle = ( moduleName ? "Total for module: " + moduleName : "Global total" ); |
| var totalsOutput = grandTotalTemplate.replace("{{rowTitle}}", rowTitle) |
| .replace("{{percentage}}", totalPercent) |
| .replace("{{numberCovered}}", numCov) |
| .replace("{{totalSmts}}", numSt) |
| .replace("{{passedBranches}}", numCovBr) |
| .replace("{{totalBranches}}", numBranch) |
| .replace("{{statusclass}}", statusClass); |
| |
| bodyContent += totalsOutput; |
| }; |
| |
| // if "data-cover-modulepattern" was provided, |
| // output the per-module totals alongside the global totals |
| if (modulePatternRegex) { |
| for (var thisModuleName in totals.moduleTotalStatements) { |
| if (totals.moduleTotalStatements.hasOwnProperty(thisModuleName)) { |
| |
| var moduleTotalSt = totals.moduleTotalStatements[thisModuleName]; |
| var moduleTotalCovSt = totals.moduleTotalCoveredStatements[thisModuleName]; |
| |
| var moduleTotalBr = totals.moduleTotalBranches[thisModuleName]; |
| var moduleTotalCovBr = totals.moduleTotalCoveredBranches[thisModuleName]; |
| |
| createAggregateTotal(moduleTotalSt, moduleTotalCovSt, moduleTotalBr, moduleTotalCovBr, thisModuleName); |
| } |
| } |
| } |
| |
| createAggregateTotal(totals.totalSmts, totals.numberOfFilesCovered, totals.totalBranches, totals.passedBranches, null); |
| bodyContent += "</div>"; //closing main |
| |
| |
| appendTag('style', head, cssSytle); |
| //appendStyle(body, headerContent); |
| if (document.getElementById("blanket-main")){ |
| document.getElementById("blanket-main").innerHTML= |
| bodyContent.slice(23,-6); |
| }else{ |
| appendTag('div', body, bodyContent); |
| } |
| //appendHtml(body, '</div>'); |
| }; |
| |
| (function(){ |
| var newOptions={}; |
| //http://stackoverflow.com/a/2954896 |
| var toArray =Array.prototype.slice; |
| var scripts = toArray.call(document.scripts); |
| toArray.call(scripts[scripts.length - 1].attributes) |
| .forEach(function(es){ |
| if(es.nodeName === "data-cover-only"){ |
| newOptions.filter = es.nodeValue; |
| } |
| if(es.nodeName === "data-cover-never"){ |
| newOptions.antifilter = es.nodeValue; |
| } |
| if(es.nodeName === "data-cover-reporter"){ |
| newOptions.reporter = es.nodeValue; |
| } |
| if (es.nodeName === "data-cover-adapter"){ |
| newOptions.adapter = es.nodeValue; |
| } |
| if (es.nodeName === "data-cover-loader"){ |
| newOptions.loader = es.nodeValue; |
| } |
| if (es.nodeName === "data-cover-timeout"){ |
| newOptions.timeout = es.nodeValue; |
| } |
| if (es.nodeName === "data-cover-modulepattern") { |
| newOptions.modulePattern = es.nodeValue; |
| } |
| if (es.nodeName === "data-cover-reporter-options"){ |
| try{ |
| newOptions.reporter_options = JSON.parse(es.nodeValue); |
| }catch(e){ |
| if (blanket.options("debug")){ |
| throw new Error("Invalid reporter options. Must be a valid stringified JSON object."); |
| } |
| } |
| } |
| if (es.nodeName === "data-cover-testReadyCallback"){ |
| newOptions.testReadyCallback = es.nodeValue; |
| } |
| if (es.nodeName === "data-cover-customVariable"){ |
| newOptions.customVariable = es.nodeValue; |
| } |
| if (es.nodeName === "data-cover-flags"){ |
| var flags = " "+es.nodeValue+" "; |
| if (flags.indexOf(" ignoreError ") > -1){ |
| newOptions.ignoreScriptError = true; |
| } |
| if (flags.indexOf(" autoStart ") > -1){ |
| newOptions.autoStart = true; |
| } |
| if (flags.indexOf(" ignoreCors ") > -1){ |
| newOptions.ignoreCors = true; |
| } |
| if (flags.indexOf(" branchTracking ") > -1){ |
| newOptions.branchTracking = true; |
| } |
| if (flags.indexOf(" sourceURL ") > -1){ |
| newOptions.sourceURL = true; |
| } |
| if (flags.indexOf(" debug ") > -1){ |
| newOptions.debug = true; |
| } |
| if (flags.indexOf(" engineOnly ") > -1){ |
| newOptions.engineOnly = true; |
| } |
| if (flags.indexOf(" commonJS ") > -1){ |
| newOptions.commonJS = true; |
| } |
| if (flags.indexOf(" instrumentCache ") > -1){ |
| newOptions.instrumentCache = true; |
| } |
| } |
| }); |
| blanket.options(newOptions); |
| |
| if (typeof requirejs !== 'undefined'){ |
| blanket.options("existingRequireJS",true); |
| } |
| /* setup requirejs loader, if needed */ |
| |
| if (blanket.options("commonJS")){ |
| blanket._commonjs = {}; |
| } |
| })(); |
| (function(_blanket){ |
| _blanket.extend({ |
| utils: { |
| normalizeBackslashes: function(str) { |
| return str.replace(/\\/g, '/'); |
| }, |
| matchPatternAttribute: function(filename,pattern){ |
| if (typeof pattern === 'string'){ |
| if (pattern.indexOf("[") === 0){ |
| //treat as array |
| var pattenArr = pattern.slice(1,pattern.length-1).split(","); |
| return pattenArr.some(function(elem){ |
| return _blanket.utils.matchPatternAttribute(filename,_blanket.utils.normalizeBackslashes(elem.slice(1,-1))); |
| //return filename.indexOf(_blanket.utils.normalizeBackslashes(elem.slice(1,-1))) > -1; |
| }); |
| }else if ( pattern.indexOf("//") === 0){ |
| var ex = pattern.slice(2,pattern.lastIndexOf('/')); |
| var mods = pattern.slice(pattern.lastIndexOf('/')+1); |
| var regex = new RegExp(ex,mods); |
| return regex.test(filename); |
| }else if (pattern.indexOf("#") === 0){ |
| return window[pattern.slice(1)].call(window,filename); |
| }else{ |
| return filename.indexOf(_blanket.utils.normalizeBackslashes(pattern)) > -1; |
| } |
| }else if ( pattern instanceof Array ){ |
| return pattern.some(function(elem){ |
| return _blanket.utils.matchPatternAttribute(filename,elem); |
| }); |
| }else if (pattern instanceof RegExp){ |
| return pattern.test(filename); |
| }else if (typeof pattern === "function"){ |
| return pattern.call(window,filename); |
| } |
| }, |
| blanketEval: function(data){ |
| _blanket._addScript(data); |
| }, |
| collectPageScripts: function(){ |
| var toArray = Array.prototype.slice; |
| var scripts = toArray.call(document.scripts); |
| var selectedScripts=[],scriptNames=[]; |
| var filter = _blanket.options("filter"); |
| if(filter != null){ |
| //global filter in place, data-cover-only |
| var antimatch = _blanket.options("antifilter"); |
| selectedScripts = toArray.call(document.scripts) |
| .filter(function(s){ |
| return toArray.call(s.attributes).filter(function(sn){ |
| return sn.nodeName === "src" && _blanket.utils.matchPatternAttribute(sn.nodeValue,filter) && |
| (typeof antimatch === "undefined" || !_blanket.utils.matchPatternAttribute(sn.nodeValue,antimatch)); |
| }).length === 1; |
| }); |
| }else{ |
| selectedScripts = toArray.call(document.querySelectorAll("script[data-cover]")); |
| } |
| scriptNames = selectedScripts.map(function(s){ |
| return _blanket.utils.qualifyURL( |
| toArray.call(s.attributes).filter( |
| function(sn){ |
| return sn.nodeName === "src"; |
| })[0].nodeValue).replace(".js",""); |
| }); |
| if (!filter){ |
| _blanket.options("filter","['"+scriptNames.join("','")+"']"); |
| } |
| return scriptNames; |
| }, |
| loadAll: function(nextScript,cb,preprocessor){ |
| /** |
| * load dependencies |
| * @param {nextScript} factory for priority level |
| * @param {cb} the done callback |
| */ |
| var currScript=nextScript(); |
| var isLoaded = _blanket.utils.scriptIsLoaded( |
| currScript, |
| _blanket.utils.ifOrdered, |
| nextScript, |
| cb |
| ); |
| |
| if (!(_blanket.utils.cache[currScript] && _blanket.utils.cache[currScript].loaded)){ |
| var attach = function(){ |
| if (_blanket.options("debug")) {console.log("BLANKET-Mark script:"+currScript+", as loaded and move to next script.");} |
| isLoaded(); |
| }; |
| var whenDone = function(result){ |
| if (_blanket.options("debug")) {console.log("BLANKET-File loading finished");} |
| if (typeof result !== 'undefined'){ |
| if (_blanket.options("debug")) {console.log("BLANKET-Add file to DOM.");} |
| _blanket._addScript(result); |
| } |
| attach(); |
| }; |
| |
| _blanket.utils.attachScript( |
| { |
| url: currScript |
| }, |
| function (content){ |
| _blanket.utils.processFile( |
| content, |
| currScript, |
| whenDone, |
| whenDone |
| ); |
| } |
| ); |
| }else{ |
| isLoaded(); |
| } |
| }, |
| attachScript: function(options,cb){ |
| var timeout = _blanket.options("timeout") || 3000; |
| setTimeout(function(){ |
| if (!_blanket.utils.cache[options.url].loaded){ |
| throw new Error("error loading source script"); |
| } |
| },timeout); |
| _blanket.utils.getFile( |
| options.url, |
| cb, |
| function(){ throw new Error("error loading source script");} |
| ); |
| }, |
| ifOrdered: function(nextScript,cb){ |
| /** |
| * ordered loading callback |
| * @param {nextScript} factory for priority level |
| * @param {cb} the done callback |
| */ |
| var currScript = nextScript(true); |
| if (currScript){ |
| _blanket.utils.loadAll(nextScript,cb); |
| }else{ |
| cb(new Error("Error in loading chain.")); |
| } |
| }, |
| scriptIsLoaded: function(url,orderedCb,nextScript,cb){ |
| /** |
| * returns a callback that checks a loading list to see if a script is loaded. |
| * @param {orderedCb} callback if ordered loading is being done |
| * @param {nextScript} factory for next priority level |
| * @param {cb} the done callback |
| */ |
| if (_blanket.options("debug")) {console.log("BLANKET-Returning function");} |
| return function(){ |
| if (_blanket.options("debug")) {console.log("BLANKET-Marking file as loaded: "+url);} |
| |
| _blanket.utils.cache[url].loaded=true; |
| |
| if (_blanket.utils.allLoaded()){ |
| if (_blanket.options("debug")) {console.log("BLANKET-All files loaded");} |
| cb(); |
| }else if (orderedCb){ |
| //if it's ordered we need to |
| //traverse down to the next |
| //priority level |
| if (_blanket.options("debug")) {console.log("BLANKET-Load next file.");} |
| orderedCb(nextScript,cb); |
| } |
| }; |
| }, |
| cache: {}, |
| allLoaded: function (){ |
| /** |
| * check if depdencies are loaded in cache |
| */ |
| var cached = Object.keys(_blanket.utils.cache); |
| for (var i=0;i<cached.length;i++){ |
| if (!_blanket.utils.cache[cached[i]].loaded){ |
| return false; |
| } |
| } |
| return true; |
| }, |
| processFile: function (content,url,cb,oldCb) { |
| var match = _blanket.options("filter"); |
| //we check the never matches first |
| var antimatch = _blanket.options("antifilter"); |
| if (typeof antimatch !== "undefined" && |
| _blanket.utils.matchPatternAttribute(url.replace(/\.js$/,""),antimatch) |
| ){ |
| oldCb(content); |
| if (_blanket.options("debug")) {console.log("BLANKET-File will never be instrumented:"+url);} |
| _blanket.requiringFile(url,true); |
| }else if (_blanket.utils.matchPatternAttribute(url.replace(/\.js$/,""),match)){ |
| if (_blanket.options("debug")) {console.log("BLANKET-Attempting instrument of:"+url);} |
| _blanket.instrument({ |
| inputFile: content, |
| inputFileName: url |
| },function(instrumented){ |
| try{ |
| if (_blanket.options("debug")) {console.log("BLANKET-instrument of:"+url+" was successfull.");} |
| _blanket.utils.blanketEval(instrumented); |
| cb(); |
| _blanket.requiringFile(url,true); |
| } |
| catch(err){ |
| if (_blanket.options("ignoreScriptError")){ |
| //we can continue like normal if |
| //we're ignoring script errors, |
| //but otherwise we don't want |
| //to completeLoad or the error might be |
| //missed. |
| if (_blanket.options("debug")) { console.log("BLANKET-There was an error loading the file:"+url); } |
| cb(content); |
| _blanket.requiringFile(url,true); |
| }else{ |
| throw new Error("Error parsing instrumented code: "+err); |
| } |
| } |
| }); |
| }else{ |
| if (_blanket.options("debug")) { console.log("BLANKET-Loading (without instrumenting) the file:"+url);} |
| oldCb(content); |
| _blanket.requiringFile(url,true); |
| } |
| |
| }, |
| createXhr: function(){ |
| var xhr, i, progId; |
| if (typeof XMLHttpRequest !== "undefined") { |
| return new XMLHttpRequest(); |
| } else if (typeof ActiveXObject !== "undefined") { |
| for (i = 0; i < 3; i += 1) { |
| progId = progIds[i]; |
| try { |
| xhr = new ActiveXObject(progId); |
| } catch (e) {} |
| |
| if (xhr) { |
| progIds = [progId]; // so faster next time |
| break; |
| } |
| } |
| } |
| |
| return xhr; |
| }, |
| getFile: function(url, callback, errback, onXhr){ |
| var foundInSession = false; |
| if (_blanket.blanketSession){ |
| var files = Object.keys(_blanket.blanketSession); |
| for (var i=0; i<files.length;i++ ){ |
| var key = files[i]; |
| if (url.indexOf(key) > -1){ |
| callback(_blanket.blanketSession[key]); |
| foundInSession=true; |
| return; |
| } |
| } |
| } |
| if (!foundInSession){ |
| var xhr = _blanket.utils.createXhr(); |
| xhr.open('GET', url, true); |
| |
| //Allow overrides specified in config |
| if (onXhr) { |
| onXhr(xhr, url); |
| } |
| |
| xhr.onreadystatechange = function (evt) { |
| var status, err; |
| |
| //Do not explicitly handle errors, those should be |
| //visible via console output in the browser. |
| if (xhr.readyState === 4) { |
| status = xhr.status; |
| if ((status > 399 && status < 600) /*|| |
| (status === 0 && |
| navigator.userAgent.toLowerCase().indexOf('firefox') > -1) |
| */ ) { |
| //An http 4xx or 5xx error. Signal an error. |
| err = new Error(url + ' HTTP status: ' + status); |
| err.xhr = xhr; |
| errback(err); |
| } else { |
| callback(xhr.responseText); |
| } |
| } |
| }; |
| try{ |
| xhr.send(null); |
| }catch(e){ |
| if (e.code && (e.code === 101 || e.code === 1012) && _blanket.options("ignoreCors") === false){ |
| //running locally and getting error from browser |
| _blanket.showManualLoader(); |
| } else { |
| throw e; |
| } |
| } |
| } |
| } |
| } |
| }); |
| |
| (function(){ |
| var require = blanket.options("commonJS") ? blanket._commonjs.require : window.require; |
| var requirejs = blanket.options("commonJS") ? blanket._commonjs.requirejs : window.requirejs; |
| if (!_blanket.options("engineOnly") && _blanket.options("existingRequireJS")){ |
| |
| _blanket.utils.oldloader = requirejs.load; |
| |
| requirejs.load = function (context, moduleName, url) { |
| _blanket.requiringFile(url); |
| _blanket.utils.getFile(url, |
| function(content){ |
| _blanket.utils.processFile( |
| content, |
| url, |
| function newLoader(){ |
| context.completeLoad(moduleName); |
| }, |
| function oldLoader(){ |
| _blanket.utils.oldloader(context, moduleName, url); |
| } |
| ); |
| }, function (err) { |
| _blanket.requiringFile(); |
| throw err; |
| }); |
| }; |
| } |
| })(); |
| |
| })(blanket); |
