/paper-rock-scissors/lib/blanket.js
JavaScript | 5447 lines | 4506 code | 712 blank | 229 comment | 817 complexity | 9e6337ed3338831689c4c3edc34d2254 MD5 | raw file
Large files files are truncated, but you can click here to view the full file
- /*! blanket - v1.1.5 */
- if (typeof QUnit !== 'undefined'){ QUnit.config.autostart = false; }
- (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 RegExp('[\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0300-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u0483-\u0487\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u05d0-\u05ea\u05f0-\u05f2\u0610-\u061a\u0620-\u0669\u066e-\u06d3\u06d5-\u06dc\u06df-\u06e8\u06ea-\u06fc\u06ff\u0710-\u074a\u074d-\u07b1\u07c0-\u07f5\u07fa\u0800-\u082d\u0840-\u085b\u08a0\u08a2-\u08ac\u08e4-\u08fe\u0900-\u0963\u0966-\u096f\u0971-\u0977\u0979-\u097f\u0981-\u0983\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bc-\u09c4\u09c7\u09c8\u09cb-\u09ce\u09d7\u09dc\u09dd\u09df-\u09e3\u09e6-\u09f1\u0a01-\u0a03\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a59-\u0a5c\u0a5e\u0a66-\u0a75\u0a81-\u0a83\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abc-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ad0\u0ae0-\u0ae3\u0ae6-\u0aef\u0b01-\u0b03\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3c-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b5c\u0b5d\u0b5f-\u0b63\u0b66-\u0b6f\u0b71\u0b82\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd0\u0bd7\u0be6-\u0bef\u0c01-\u0c03\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c3d-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c58\u0c59\u0c60-\u0c63\u0c66-\u0c6f\u0c82\u0c83\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbc-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0cde\u0ce0-\u0ce3\u0ce6-\u0cef\u0cf1\u0cf2\u0d02\u0d03\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d-\u0d44\u0d46-\u0d48\u0d4a-\u0d4e\u0d57\u0d60-\u0d63\u0d66-\u0d6f\u0d7a-\u0d7f\u0d82\u0d83\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0df2\u0df3\u0e01-\u0e3a\u0e40-\u0e4e\u0e50-\u0e59\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb9\u0ebb-\u0ebd\u0ec0-\u0ec4\u0ec6\u0ec8-\u0ecd\u0ed0-\u0ed9\u0edc-\u0edf\u0f00\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e-\u0f47\u0f49-\u0f6c\u0f71-\u0f84\u0f86-\u0f97\u0f99-\u0fbc\u0fc6\u1000-\u1049\u1050-\u109d\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u135d-\u135f\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176c\u176e-\u1770\u1772\u1773\u1780-\u17d3\u17d7\u17dc\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u1820-\u1877\u1880-\u18aa\u18b0-\u18f5\u1900-\u191c\u1920-\u192b\u1930-\u193b\u1946-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u19d0-\u19d9\u1a00-\u1a1b\u1a20-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1aa7\u1b00-\u1b4b\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1bf3\u1c00-\u1c37\u1c40-\u1c49\u1c4d-\u1c7d\u1cd0-\u1cd2\u1cd4-\u1cf6\u1d00-\u1de6\u1dfc-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u200c\u200d\u203f\u2040\u2054\u2071\u207f\u2090-\u209c\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d7f-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2de0-\u2dff\u2e2f\u3005-\u3007\u3021-\u302f\u3031-\u3035\u3038-\u303c\u3041-\u3096\u3099\u309a\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fcc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua62b\ua640-\ua66f\ua674-\ua67d\ua67f-\ua697\ua69f-\ua6f1\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua827\ua840-\ua873\ua880-\ua8c4\ua8d0-\ua8d9\ua8e0-\ua8f7\ua8fb\ua900-\ua92d\ua930-\ua953\ua960-\ua97c\ua980-\ua9c0\ua9cf-\ua9d9\uaa00-\uaa36\uaa40-\uaa4d\uaa50-\uaa59\uaa60-\uaa76\uaa7a\uaa7b\uaa80-\uaac2\uaadb-\uaadd\uaae0-\uaaef\uaaf2-\uaaf6\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\uabea\uabec\uabed\uabf0-\uabf9\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe00-\ufe0f\ufe20-\ufe26\ufe33\ufe34\ufe4d-\ufe4f\ufe70-\ufe74\ufe76-\ufefc\uff10-\uff19\uff21-\uff3a\uff3f\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc]')
- };
- // 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 += '\x0B';
- 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 (ch === '\\') {
- ch = source[index++];
- // ECMA-262 7.8.5
- if (isLineTerminator(ch)) {
- throwError({}, Messages.UnterminatedRegExp);
- }
- str += ch;
- } else if (classMarker) {
- if (ch === ']') {
- classMarker = false;
- }
- } 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 {
- …
Large files files are truncated, but you can click here to view the full file