Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Sample code to illustrate some issues with Blanket
Sample code to illustrate some issues with Blanket
/// <reference path="require.js" />
/// <reference path="jasmine.js" />
requirejs(['./tests/base/base.jasmine.test',
'./tests/ui/ui.jasmine.test'],
function () { }
);
/// <reference path="require.js" />
/// <reference path="qunit.js" />
requirejs(['./tests/base/base.qunit.test',
'./tests/ui/ui.qunit.test'],
function (){}
);
define(['base/core'],
function (core) {
describe("base/core", function () {
it("will return correct version from core", function () {
var version = core.version;
expect(version).toEqual(8);
});
});
});
define(['base/core'],
function (core) {
module("base/core");
test("will return correct version from core", function () {
var version = core.version;
equal(version, 8);
});
});
/*! blanket - v1.0.1 */
/*
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, generateStatement: true, peek: true,
parseAssignmentExpression: true, parseBlock: true, parseExpression: true,
parseFunctionDeclaration: true, parseFunctionExpression: true,
parseFunctionSourceElements: true, parseVariableIdentifier: true,
parseLeftHandSideExpression: true,
parseStatement: true, parseSourceElement: true */
(function (exports) {
'use strict';
var Token,
TokenName,
Syntax,
PropertyKind,
Messages,
Regex,
SyntaxTreeDelegate,
source,
strict,
index,
lineNumber,
lineStart,
length,
delegate,
lookahead,
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) {
return ['class', 'enum', 'export', 'extends', 'import', 'super'].
indexOf(id) >= 0;
}
function isStrictModeReservedWord(id) {
return ['implements', 'interface', 'package', 'private', 'protected',
'public', 'static', 'yield', 'let'].indexOf(id) >= 0;
}
function isRestrictedWord(id) {
return id === 'eval' || id === 'arguments';
}
// 7.6.1.1 Keywords
function isKeyword(id) {
if (strict && isStrictModeReservedWord(id)) {
return true;
}
// 'const' is specialized as Keyword in V8.
// 'yield' and 'let' are for compatiblity with SpiderMonkey and ES.next.
// Some others are from future reserved words.
switch (id.length) {
case 2:
return (id === 'if') || (id === 'in') || (id === 'do');
case 3:
return (id === 'var') || (id === 'for') || (id === 'new') ||
(id === 'try') || (id === 'let');
case 4:
return (id === 'this') || (id === 'else') || (id === 'case') ||
(id === 'void') || (id === 'with') || (id === 'enum');
case 5:
return (id === 'while') || (id === 'break') || (id === 'catch') ||
(id === 'throw') || (id === 'const') || (id === 'yield') ||
(id === 'class') || (id === 'super');
case 6:
return (id === 'return') || (id === 'typeof') || (id === 'delete') ||
(id === 'switch') || (id === 'export') || (id === 'import');
case 7:
return (id === 'default') || (id === 'finally') || (id === 'extends');
case 8:
return (id === 'function') || (id === 'continue') || (id === 'debugger');
case 10:
return (id === 'instanceof');
default:
return false;
}
}
// 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 getEscapedIdentifier() {
var ch, id, restore, type;
ch = id = source[index++];
if (ch === '\\') {
if (source[index] !== 'u') {
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
}
++index;
restore = index;
ch = scanHexEscape('u');
if (ch) {
if (ch === '\\' || !isIdentifierStart(ch)) {
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
}
id = ch;
} else {
index = restore;
id = 'u';
}
}
while (index < length) {
ch = source[index];
if (!isIdentifierPart(ch)) {
break;
}
++index;
id += ch;
if (ch === '\\') {
id = id.substr(0, id.length - 1);
if (source[index] !== 'u') {
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
}
++index;
restore = index;
ch = scanHexEscape('u');
if (ch) {
if (ch === '\\' || !isIdentifierPart(ch)) {
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
}
id += ch;
} else {
index = restore;
id += 'u';
}
}
}
return id;
}
function getIdentifier() {
var start, ch;
start = index++;
while (index < length) {
ch = source[index];
if (ch === '\\') {
index = start;
return getEscapedIdentifier();
}
if (isIdentifierPart(ch)) {
++index;
} else {
break;
}
}
return sliceSource(start, index);
}
function scanIdentifier() {
var start, id, type;
start = index;
if (!isIdentifierStart(source[index])) {
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
}
id = (source[index] === '\\') ? getEscapedIdentifier() : getIdentifier();
// There is no keyword or literal with only one character.
// Thus, it must be an identifier.
if (id.length === 1) {
type = Token.Identifier;
} else if (isKeyword(id)) {
type = Token.Keyword;
} else if (id === 'null') {
type = Token.NullLiteral;
} else if (id === 'true' || id === 'false') {
type = Token.BooleanLiteral;
} else {
type = Token.Identifier;
}
return {
type: type,
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 === ')' || ch1 === ';' || ch1 === ',' ||
ch1 === '{' || ch1 === '}' || ch1 === '[' || ch1 === ']' ||
ch1 === ':' || ch1 === '?' || ch1 === '~') {
++index;
return {
type: Token.Punctuator,
value: ch1,
lineNumber: lineNumber,
lineStart: lineStart,
range: [start, index]
};
}
// Peek more characters.
ch2 = source[index + 1];
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 (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]
};
}
}
if ('<>=!+-*%&|^/'.indexOf(ch1) >= 0) {
++index;
if (ch2 === '=') {
++index;
ch1 += ch2;
}
return {
type: Token.Punctuator,
value: ch1,
lineNumber: lineNumber,
lineStart: lineStart,
range: [start, index]
};
}
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
}
// 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]
};
}
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;
lookahead = 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;
for (str += '\\u'; 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);
}
peek();
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;
skipComment();
if (index >= length) {
return {
type: Token.EOF,
lineNumber: lineNumber,
lineStart: lineStart,
range: [index, index]
};
}
ch = source[index];
if (isIdentifierStart(ch)) {
return scanIdentifier();
}
if (ch === '.') {
// Dot (.) can also start a floating-point number, hence the need
// to check the next character.
if (isDecimalDigit(source[index + 1])) {
return scanNumericLiteral();
}
return scanPunctuator();
}
if (ch === '\'' || ch === '"') {
return scanStringLiteral();
}
if (isDecimalDigit(ch)) {
return scanNumericLiteral();
}
return scanPunctuator();
}
function lex() {
var token;
token = lookahead;
index = token.range[1];
lineNumber = token.lineNumber;
lineStart = token.lineStart;
lookahead = advance();
index = token.range[1];
lineNumber = token.lineNumber;
lineStart = token.lineStart;
return token;
}
function peek() {
var pos, line, start;
pos = index;
line = lineNumber;
start = lineStart;
lookahead = advance();
index = pos;
lineNumber = line;
lineStart = start;
}
SyntaxTreeDelegate = {
name: 'SyntaxTree',
createArrayExpression: function (elements) {
return {
type: Syntax.ArrayExpression,
elements: elements
};
},
createAssignmentExpression: function (operator, left, right) {
return {
type: Syntax.AssignmentExpression,
operator: operator,
left: left,
right: right
};
},
createBinaryExpression: function (operator, left, right) {
return {
type: Syntax.BinaryExpression,
operator: operator,
left: left,
right: right
};
},
createBlockStatement: function (body) {
return {
type: Syntax.BlockStatement,
body: body
};
},
createBreakStatement: function (label) {
return {
type: Syntax.BreakStatement,
label: label
};
},
createCallExpression: function (callee, args) {
return {
type: Syntax.CallExpression,
callee: callee,
'arguments': args
};
},
createCatchClause: function (param, body) {
return {
type: Syntax.CatchClause,
param: param,
body: body
};
},
createConditionalExpression: function (test, consequent, alternate) {
return {
type: Syntax.ConditionalExpression,
test: test,
consequent: consequent,
alternate: alternate
};
},
createContinueStatement: function (label) {
return {
type: Syntax.ContinueStatement,
label: label
};
},
createDebuggerStatement: function () {
return {
type: Syntax.DebuggerStatement
};
},
createDoWhileStatement: function (body, test) {
return {
type: Syntax.DoWhileStatement,
body: body,
test: test
};
},
createEmptyStatement: function () {
return {
type: Syntax.EmptyStatement
};
},
createExpressionStatement: function (expression) {
return {
type: Syntax.ExpressionStatement,
expression: expression
};
},
createForStatement: function (init, test, update, body) {
return {
type: Syntax.ForStatement,
init: init,
test: test,
update: update,
body: body
};
},
createForInStatement: function (left, right, body) {
return {
type: Syntax.ForInStatement,
left: left,
right: right,
body: body,
each: false
};
},
createFunctionDeclaration: function (id, params, defaults, body) {
return {
type: Syntax.FunctionDeclaration,
id: id,
params: params,
defaults: defaults,
body: body,
rest: null,
generator: false,
expression: false
};
},
createFunctionExpression: function (id, params, defaults, body) {
return {
type: Syntax.FunctionExpression,
id: id,
params: params,
defaults: defaults,
body: body,
rest: null,
generator: false,
expression: false
};
},
createIdentifier: function (name) {
return {
type: Syntax.Identifier,
name: name
};
},
createIfStatement: function (test, consequent, alternate) {
return {
type: Syntax.IfStatement,
test: test,
consequent: consequent,
alternate: alternate
};
},
createLabeledStatement: function (label, body) {
return {
type: Syntax.LabeledStatement,
label: label,
body: body
};
},
createLiteral: function (token) {
return {
type: Syntax.Literal,
value: token.value,
raw: sliceSource(token.range[0], token.range[1])
};
},
createLogicalExpression: function (operator, left, right) {
return {
type: Syntax.LogicalExpression,
operator: operator,
left: left,
right: right
};
},
createMemberExpression: function (accessor, object, property) {
return {
type: Syntax.MemberExpression,
computed: accessor === '[',
object: object,
property: property
};
},
createNewExpression: function (callee, args) {
return {
type: Syntax.NewExpression,
callee: callee,
'arguments': args
};
},
createObjectExpression: function (properties) {
return {
type: Syntax.ObjectExpression,
properties: properties
};
},
createPostfixExpression: function (operator, argument) {
return {
type: Syntax.UpdateExpression,
operator: operator,
argument: argument,
prefix: false
};
},
createProgram: function (body) {
return {
type: Syntax.Program,
body: body
};
},
createProperty: function (kind, key, value) {
return {
type: Syntax.Property,
key: key,
value: value,
kind: kind
};
},
createReturnStatement: function (argument) {
return {
type: Syntax.ReturnStatement,
argument: argument
};
},
createSequenceExpression: function (expressions) {
return {
type: Syntax.SequenceExpression,
expressions: expressions
};
},
createSwitchCase: function (test, consequent) {
return {
type: Syntax.SwitchCase,
test: test,
consequent: consequent
};
},
createSwitchStatement: function (discriminant, cases) {
return {
type: Syntax.SwitchStatement,
discriminant: discriminant,
cases: cases
};
},
createThisExpression: function () {
return {
type: Syntax.ThisExpression
};
},
createThrowStatement: function (argument) {
return {
type: Syntax.ThrowStatement,
argument: argument
};
},
createTryStatement: function (block, guardedHandlers, handlers, finalizer) {
return {
type: Syntax.TryStatement,
block: block,
guardedHandlers: guardedHandlers,
handlers: handlers,
finalizer: finalizer
};
},
createUnaryExpression: function (operator, argument) {
if (operator === '++' || operator === '--') {
return {
type: Syntax.UpdateExpression,
operator: operator,
argument: argument,
prefix: true
};
}
return {
type: Syntax.UnaryExpression,
operator: operator,
argument: argument
};
},
createVariableDeclaration: function (declarations, kind) {
return {
type: Syntax.VariableDeclaration,
declarations: declarations,
kind: kind
};
},
createVariableDeclarator: function (id, init) {
return {
type: Syntax.VariableDeclarator,
id: id,
init: init
};
},
createWhileStatement: function (test, body) {
return {
type: Syntax.WhileStatement,
test: test,
body: body
};
},
createWithStatement: function (object, body) {
return {
type: Syntax.WithStatement,
object: object,
body: body
};
}
};
// 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) {
return lookahead.type === Token.Punctuator && lookahead.value === value;
}
// Return true if the next token matches the specified keyword
function matchKeyword(keyword) {
return lookahead.type === Token.Keyword && lookahead.value === keyword;
}
// Return true if the next token is an assignment operator
function matchAssign() {
var op;
if (lookahead.type !== Token.Punctuator) {
return false;
}
op = lookahead.value;
return op === '=' ||
op === '*=' ||
op === '/=' ||
op === '%=' ||
op === '+=' ||
op === '-=' ||
op === '<<=' ||
op === '>>=' ||
op === '>>>=' ||
op === '&=' ||
op === '^=' ||
op === '|=';
}
function consumeSemicolon() {
var line;
// Catch the very common case first.
if (source[index] === ';') {
lex();
return;
}
line = lineNumber;
skipComment();
if (lineNumber !== line) {
return;
}
if (match(';')) {
lex();
return;
}
if (lookahead.type !== Token.EOF && !match('}')) {
throwUnexpected(lookahead);
}
}
// 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 delegate.createArrayExpression(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 delegate.createFunctionExpression(null, param, [], body);
}
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 delegate.createLiteral(token);
}
return delegate.createIdentifier(token.value);
}
function parseObjectProperty() {
var token, key, id, value, param;
token = lookahead;
if (token.type === Token.Identifier) {
id = parseObjectPropertyKey();
// Property Assignment: Getter and Setter.
if (token.value === 'get' && !match(':')) {
key = parseObjectPropertyKey();
expect('(');
expect(')');
value = parsePropertyFunction([]);
return delegate.createProperty('get', key, value);
}
if (token.value === 'set' && !match(':')) {
key = parseObjectPropertyKey();
expect('(');
token = lookahead;
if (token.type !== Token.Identifier) {
throwUnexpected(lex());
}
param = [ parseVariableIdentifier() ];
expect(')');
value = parsePropertyFunction(param, token);
return delegate.createProperty('set', key, value);
}
expect(':');
value = parseAssignmentExpression();
return delegate.createProperty('init', id, value);
}
if (token.type === Token.EOF || token.type === Token.Punctuator) {
throwUnexpected(token);
} else {
key = parseObjectPropertyKey();
expect(':');
value = parseAssignmentExpression();
return delegate.createProperty('init', key, value);
}
}
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 delegate.createObjectExpression(properties);
}
// 11.1.6 The Grouping Operator
function parseGroupExpression() {
var expr;
expect('(');
expr = parseExpression();
expect(')');
return expr;
}
// 11.1 Primary Expressions
function parsePrimaryExpression() {
var type, token;
type = lookahead.type;
if (type === Token.Identifier) {
return delegate.createIdentifier(lex().value);
}
if (type === Token.StringLiteral || type === Token.NumericLiteral) {
if (strict && lookahead.octal) {
throwErrorTolerant(lookahead, Messages.StrictOctalLiteral);
}
return delegate.createLiteral(lex());
}
if (type === Token.Keyword) {
if (matchKeyword('this')) {
lex();
return delegate.createThisExpression();
}
if (matchKeyword('function')) {
return parseFunctionExpression();
}
}
if (type === Token.BooleanLiteral) {
token = lex();
token.value = (token.value === 'true');
return delegate.createLiteral(token);
}
if (type === Token.NullLiteral) {
token = lex();
token.value = null;
return delegate.createLiteral(token);
}
if (match('[')) {
return parseArrayInitialiser();
}
if (match('{')) {
return parseObjectInitialiser();
}
if (match('(')) {
return parseGroupExpression();
}
if (match('/') || match('/=')) {
return delegate.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 delegate.createIdentifier(token.value);
}
function parseNonComputedMember() {
expect('.');
return parseNonComputedProperty();
}
function parseComputedMember() {
var expr;
expect('[');
expr = parseExpression();
expect(']');
return expr;
}
function parseNewExpression() {
var callee, args;
expectKeyword('new');
callee = parseLeftHandSideExpression();
args = match('(') ? parseArguments() : [];
return delegate.createNewExpression(callee, args);
}
function parseLeftHandSideExpressionAllowCall() {
var expr, args, property;
expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression();
while (match('.') || match('[') || match('(')) {
if (match('(')) {
args = parseArguments();
expr = delegate.createCallExpression(expr, args);
} else if (match('[')) {
property = parseComputedMember();
expr = delegate.createMemberExpression('[', expr, property);
} else {
property = parseNonComputedMember();
expr = delegate.createMemberExpression('.', expr, property);
}
}
return expr;
}
function parseLeftHandSideExpression() {
var expr, property;
expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression();
while (match('.') || match('[')) {
if (match('[')) {
property = parseComputedMember();
expr = delegate.createMemberExpression('[', expr, property);
} else {
property = parseNonComputedMember();
expr = delegate.createMemberExpression('.', expr, property);
}
}
return expr;
}
// 11.3 Postfix Expressions
function parsePostfixExpression() {
var expr = parseLeftHandSideExpressionAllowCall(), token;
if (lookahead.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);
}
token = lex();
expr = delegate.createPostfixExpression(token.value, expr);
}
return expr;
}
// 11.4 Unary Operators
function parseUnaryExpression() {
var token, expr;
if (lookahead.type !== Token.Punctuator && lookahead.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);
}
return delegate.createUnaryExpression(token.value, expr);
}
if (match('+') || match('-') || match('~') || match('!')) {
token = lex();
expr = parseUnaryExpression();
return delegate.createUnaryExpression(token.value, expr);
}
if (matchKeyword('delete') || matchKeyword('void') || matchKeyword('typeof')) {
token = lex();
expr = parseUnaryExpression();
expr = delegate.createUnaryExpression(token.value, expr);
if (strict && expr.operator === 'delete' && expr.argument.type === Syntax.Identifier) {
throwErrorTolerant({}, Messages.StrictDelete);
}
return expr;
}
return parsePostfixExpression();
}
function binaryPrecedence(token, allowIn) {
var prec = 0;
if (token.type !== Token.Punctuator && token.type !== Token.Keyword) {
return 0;
}
switch (token.value) {
case '||':
prec = 1;
break;
case '&&':
prec = 2;
break;
case '|':
prec = 3;
break;
case '^':
prec = 4;
break;
case '&':
prec = 5;
break;
case '==':
case '!=':
case '===':
case '!==':
prec = 6;
break;
case '<':
case '>':
case '<=':
case '>=':
case 'instanceof':
prec = 7;
break;
case 'in':
prec = allowIn ? 7 : 0;
break;
case '<<':
case '>>':
case '>>>':
prec = 8;
break;
case '+':
case '-':
prec = 9;
break;
case '*':
case '/':
case '%':
prec = 11;
break;
default:
break;
}
return prec;
}
// 11.5 Multiplicative Operators
// 11.6 Additive Operators
// 11.7 Bitwise Shift Operators
// 11.8 Relational Operators
// 11.9 Equality Operators
// 11.10 Binary Bitwise Operators
// 11.11 Binary Logical Operators
// Reduce: make a binary expression from the three topmost entries.
function reduceBinary(stack) {
var right = stack.pop(),
operator = stack.pop().value,
left = stack.pop();
if (operator === '||' || operator === '&&') {
stack.push(delegate.createLogicalExpression(operator, left, right));
} else {
stack.push(delegate.createBinaryExpression(operator, left, right));
}
}
function parseBinaryExpression() {
var expr, token, prec, previousAllowIn, stack;
previousAllowIn = state.allowIn;
state.allowIn = true;
expr = parseUnaryExpression();
token = lookahead;
prec = binaryPrecedence(token, previousAllowIn);
if (prec === 0) {
return expr;
}
token.prec = prec;
lex();
stack = [expr, token, parseUnaryExpression()];
while ((prec = binaryPrecedence(lookahead, previousAllowIn)) > 0) {
// Reduce.
while ((stack.length > 2) && (prec <= stack[stack.length - 2].prec)) {
reduceBinary(stack);
}
// Shift.
token = lex();
token.prec = prec;
stack.push(token);
stack.push(parseUnaryExpression());
}
// Final reduce to clean-up the stack.
while (stack.length > 1) {
reduceBinary(stack);
}
state.allowIn = previousAllowIn;
return stack[0];
}
// 11.12 Conditional Operator
function parseConditionalExpression() {
var expr, previousAllowIn, consequent, alternate;
expr = parseBinaryExpression();
if (match('?')) {
lex();
previousAllowIn = state.allowIn;
state.allowIn = true;
consequent = parseAssignmentExpression();
state.allowIn = previousAllowIn;
expect(':');
alternate = parseAssignmentExpression();
expr = delegate.createConditionalExpression(expr, consequent, alternate);
}
return expr;
}
// 11.13 Assignment Operators
function parseAssignmentExpression() {
var token, left, right;
token = lookahead;
left = parseConditionalExpression();
if (matchAssign()) {
// LeftHandSideExpression
if (!isLeftHandSide(left)) {
throwError({}, Messages.InvalidLHSInAssignment);
}
// 11.13.1
if (strict && left.type === Syntax.Identifier && isRestrictedWord(left.name)) {
throwErrorTolerant(token, Messages.StrictLHSAssignment);
}
token = lex();
right = parseAssignmentExpression();
return delegate.createAssignmentExpression(token.value, left, right);
}
return left;
}
// 11.14 Comma Operator
function parseExpression() {
var expr = parseAssignmentExpression();
if (match(',')) {
expr = delegate.createSequenceExpression([ 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 delegate.createBlockStatement(block);
}
// 12.2 Variable Statement
function parseVariableIdentifier() {
var token = lex();
if (token.type !== Token.Identifier) {
throwUnexpected(token);
}
return delegate.createIdentifier(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 delegate.createVariableDeclarator(id, 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 delegate.createVariableDeclaration(declarations, '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 delegate.createVariableDeclaration(declarations, kind);
}
// 12.3 Empty Statement
function parseEmptyStatement() {
expect(';');
return delegate.createEmptyStatement();
}
// 12.4 Expression Statement
function parseExpressionStatement() {
var expr = parseExpression();
consumeSemicolon();
return delegate.createExpressionStatement(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 delegate.createIfStatement(test, consequent, 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 delegate.createDoWhileStatement(body, 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 delegate.createWhileStatement(test, body);
}
function parseForVariableDeclaration() {
var token = lex(),
declarations = parseVariableDeclarationList();
return delegate.createVariableDeclaration(declarations, 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;
}