diff options
Diffstat (limited to 'chromium/third_party/blanketjs/src/blanket.js')
-rw-r--r-- | chromium/third_party/blanketjs/src/blanket.js | 5350 |
1 files changed, 5350 insertions, 0 deletions
diff --git a/chromium/third_party/blanketjs/src/blanket.js b/chromium/third_party/blanketjs/src/blanket.js new file mode 100644 index 00000000000..9377d4faf14 --- /dev/null +++ b/chromium/third_party/blanketjs/src/blanket.js @@ -0,0 +1,5350 @@ +/*! 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); |