6056 lines
173 KiB
JavaScript
6056 lines
173 KiB
JavaScript
/*! blanket - v1.1.5 */
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(function(define) {
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/*
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Copyright (C) 2013 Ariya Hidayat <ariya.hidayat@gmail.com>
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Copyright (C) 2013 Thaddee Tyl <thaddee.tyl@gmail.com>
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Copyright (C) 2013 Mathias Bynens <mathias@qiwi.be>
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Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com>
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Copyright (C) 2012 Mathias Bynens <mathias@qiwi.be>
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Copyright (C) 2012 Joost-Wim Boekesteijn <joost-wim@boekesteijn.nl>
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Copyright (C) 2012 Kris Kowal <kris.kowal@cixar.com>
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Copyright (C) 2012 Yusuke Suzuki <utatane.tea@gmail.com>
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Copyright (C) 2012 Arpad Borsos <arpad.borsos@googlemail.com>
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Copyright (C) 2011 Ariya Hidayat <ariya.hidayat@gmail.com>
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*jslint bitwise:true plusplus:true */
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/*global esprima:true, define:true, exports:true, window: true,
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throwErrorTolerant: true,
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throwError: true, generateStatement: true, peek: true,
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parseAssignmentExpression: true, parseBlock: true, parseExpression: true,
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parseFunctionDeclaration: true, parseFunctionExpression: true,
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parseFunctionSourceElements: true, parseVariableIdentifier: true,
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parseLeftHandSideExpression: true,
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parseUnaryExpression: true,
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parseStatement: true, parseSourceElement: true */
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(function(root, factory) {
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'use strict';
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// Universal Module Definition (UMD) to support AMD, CommonJS/Node.js,
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// Rhino, and plain browser loading.
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/* istanbul ignore next */
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if (typeof define === 'function' && define.amd) {
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define(['exports'], factory);
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} else if (typeof exports !== 'undefined') {
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factory(exports);
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} else {
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factory((root.esprima = {}));
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}
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})(this, function(exports) {
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'use strict';
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var Token,
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TokenName,
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FnExprTokens,
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Syntax,
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PropertyKind,
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Messages,
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Regex,
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SyntaxTreeDelegate,
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source,
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strict,
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index,
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lineNumber,
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lineStart,
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length,
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delegate,
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lookahead,
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state,
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extra;
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Token = {
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BooleanLiteral: 1,
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EOF: 2,
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Identifier: 3,
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Keyword: 4,
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NullLiteral: 5,
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NumericLiteral: 6,
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Punctuator: 7,
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StringLiteral: 8,
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RegularExpression: 9,
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};
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TokenName = {};
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TokenName[Token.BooleanLiteral] = 'Boolean';
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TokenName[Token.EOF] = '<end>';
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TokenName[Token.Identifier] = 'Identifier';
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TokenName[Token.Keyword] = 'Keyword';
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TokenName[Token.NullLiteral] = 'Null';
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TokenName[Token.NumericLiteral] = 'Numeric';
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TokenName[Token.Punctuator] = 'Punctuator';
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TokenName[Token.StringLiteral] = 'String';
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TokenName[Token.RegularExpression] = 'RegularExpression';
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// A function following one of those tokens is an expression.
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FnExprTokens = [
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'(',
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'{',
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'[',
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'in',
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'typeof',
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'instanceof',
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'new',
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'return',
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'case',
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'delete',
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'throw',
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'void',
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// assignment operators
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'=',
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'+=',
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'-=',
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'*=',
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'/=',
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'%=',
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'<<=',
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'>>=',
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'>>>=',
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'&=',
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'|=',
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'^=',
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',',
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// binary/unary operators
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'+',
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'-',
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'*',
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'/',
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'%',
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'++',
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'--',
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'<<',
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'>>',
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'>>>',
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'&',
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'|',
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'^',
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'!',
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'~',
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'&&',
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'||',
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'?',
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':',
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'===',
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'==',
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'>=',
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'<=',
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'<',
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'>',
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'!=',
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'!==',
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];
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Syntax = {
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AssignmentExpression: 'AssignmentExpression',
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ArrayExpression: 'ArrayExpression',
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BlockStatement: 'BlockStatement',
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BinaryExpression: 'BinaryExpression',
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BreakStatement: 'BreakStatement',
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CallExpression: 'CallExpression',
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CatchClause: 'CatchClause',
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ConditionalExpression: 'ConditionalExpression',
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ContinueStatement: 'ContinueStatement',
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DoWhileStatement: 'DoWhileStatement',
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DebuggerStatement: 'DebuggerStatement',
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EmptyStatement: 'EmptyStatement',
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ExpressionStatement: 'ExpressionStatement',
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ForStatement: 'ForStatement',
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ForInStatement: 'ForInStatement',
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FunctionDeclaration: 'FunctionDeclaration',
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FunctionExpression: 'FunctionExpression',
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Identifier: 'Identifier',
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IfStatement: 'IfStatement',
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Literal: 'Literal',
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LabeledStatement: 'LabeledStatement',
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LogicalExpression: 'LogicalExpression',
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MemberExpression: 'MemberExpression',
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NewExpression: 'NewExpression',
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ObjectExpression: 'ObjectExpression',
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Program: 'Program',
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Property: 'Property',
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ReturnStatement: 'ReturnStatement',
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SequenceExpression: 'SequenceExpression',
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SwitchStatement: 'SwitchStatement',
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SwitchCase: 'SwitchCase',
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ThisExpression: 'ThisExpression',
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ThrowStatement: 'ThrowStatement',
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TryStatement: 'TryStatement',
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UnaryExpression: 'UnaryExpression',
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UpdateExpression: 'UpdateExpression',
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VariableDeclaration: 'VariableDeclaration',
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VariableDeclarator: 'VariableDeclarator',
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WhileStatement: 'WhileStatement',
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WithStatement: 'WithStatement',
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};
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PropertyKind = {
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Data: 1,
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Get: 2,
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Set: 4,
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};
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// Error messages should be identical to V8.
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Messages = {
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UnexpectedToken: 'Unexpected token %0',
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UnexpectedNumber: 'Unexpected number',
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UnexpectedString: 'Unexpected string',
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UnexpectedIdentifier: 'Unexpected identifier',
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UnexpectedReserved: 'Unexpected reserved word',
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UnexpectedEOS: 'Unexpected end of input',
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NewlineAfterThrow: 'Illegal newline after throw',
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InvalidRegExp: 'Invalid regular expression',
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UnterminatedRegExp: 'Invalid regular expression: missing /',
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InvalidLHSInAssignment: 'Invalid left-hand side in assignment',
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InvalidLHSInForIn: 'Invalid left-hand side in for-in',
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MultipleDefaultsInSwitch:
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'More than one default clause in switch statement',
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NoCatchOrFinally: 'Missing catch or finally after try',
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UnknownLabel: "Undefined label '%0'",
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Redeclaration: "%0 '%1' has already been declared",
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IllegalContinue: 'Illegal continue statement',
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IllegalBreak: 'Illegal break statement',
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IllegalReturn: 'Illegal return statement',
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StrictModeWith: 'Strict mode code may not include a with statement',
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StrictCatchVariable:
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'Catch variable may not be eval or arguments in strict mode',
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StrictVarName:
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'Variable name may not be eval or arguments in strict mode',
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StrictParamName:
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'Parameter name eval or arguments is not allowed in strict mode',
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StrictParamDupe:
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'Strict mode function may not have duplicate parameter names',
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StrictFunctionName:
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'Function name may not be eval or arguments in strict mode',
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StrictOctalLiteral: 'Octal literals are not allowed in strict mode.',
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StrictDelete: 'Delete of an unqualified identifier in strict mode.',
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StrictDuplicateProperty:
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'Duplicate data property in object literal not allowed in strict mode',
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AccessorDataProperty:
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'Object literal may not have data and accessor property with the same name',
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AccessorGetSet:
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'Object literal may not have multiple get/set accessors with the same name',
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StrictLHSAssignment:
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'Assignment to eval or arguments is not allowed in strict mode',
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StrictLHSPostfix:
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'Postfix increment/decrement may not have eval or arguments operand in strict mode',
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StrictLHSPrefix:
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'Prefix increment/decrement may not have eval or arguments operand in strict mode',
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StrictReservedWord: 'Use of future reserved word in strict mode',
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};
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// See also tools/generate-unicode-regex.py.
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Regex = {
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NonAsciiIdentifierStart: new RegExp(
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'[\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]'
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),
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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) {
|
|
/* istanbul ignore if */
|
|
if (!condition) {
|
|
throw new Error('ASSERT: ' + message);
|
|
}
|
|
}
|
|
|
|
function isDecimalDigit(ch) {
|
|
return ch >= 48 && ch <= 57; // 0..9
|
|
}
|
|
|
|
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 === 0x20 ||
|
|
ch === 0x09 ||
|
|
ch === 0x0b ||
|
|
ch === 0x0c ||
|
|
ch === 0xa0 ||
|
|
(ch >= 0x1680 &&
|
|
[
|
|
0x1680,
|
|
0x180e,
|
|
0x2000,
|
|
0x2001,
|
|
0x2002,
|
|
0x2003,
|
|
0x2004,
|
|
0x2005,
|
|
0x2006,
|
|
0x2007,
|
|
0x2008,
|
|
0x2009,
|
|
0x200a,
|
|
0x202f,
|
|
0x205f,
|
|
0x3000,
|
|
0xfeff,
|
|
].indexOf(ch) >= 0)
|
|
);
|
|
}
|
|
|
|
// 7.3 Line Terminators
|
|
|
|
function isLineTerminator(ch) {
|
|
return ch === 0x0a || ch === 0x0d || ch === 0x2028 || ch === 0x2029;
|
|
}
|
|
|
|
// 7.6 Identifier Names and Identifiers
|
|
|
|
function isIdentifierStart(ch) {
|
|
return (
|
|
ch === 0x24 ||
|
|
ch === 0x5f || // $ (dollar) and _ (underscore)
|
|
(ch >= 0x41 && ch <= 0x5a) || // A..Z
|
|
(ch >= 0x61 && ch <= 0x7a) || // a..z
|
|
ch === 0x5c || // \ (backslash)
|
|
(ch >= 0x80 &&
|
|
Regex.NonAsciiIdentifierStart.test(String.fromCharCode(ch)))
|
|
);
|
|
}
|
|
|
|
function isIdentifierPart(ch) {
|
|
return (
|
|
ch === 0x24 ||
|
|
ch === 0x5f || // $ (dollar) and _ (underscore)
|
|
(ch >= 0x41 && ch <= 0x5a) || // A..Z
|
|
(ch >= 0x61 && ch <= 0x7a) || // a..z
|
|
(ch >= 0x30 && ch <= 0x39) || // 0..9
|
|
ch === 0x5c || // \ (backslash)
|
|
(ch >= 0x80 &&
|
|
Regex.NonAsciiIdentifierPart.test(String.fromCharCode(ch)))
|
|
);
|
|
}
|
|
|
|
// 7.6.1.2 Future Reserved Words
|
|
|
|
function isFutureReservedWord(id) {
|
|
switch (id) {
|
|
case 'class':
|
|
case 'enum':
|
|
case 'export':
|
|
case 'extends':
|
|
case 'import':
|
|
case 'super':
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function isStrictModeReservedWord(id) {
|
|
switch (id) {
|
|
case 'implements':
|
|
case 'interface':
|
|
case 'package':
|
|
case 'private':
|
|
case 'protected':
|
|
case 'public':
|
|
case 'static':
|
|
case 'yield':
|
|
case 'let':
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
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 addComment(type, value, start, end, loc) {
|
|
var comment, attacher;
|
|
|
|
assert(typeof start === 'number', 'Comment must have valid position');
|
|
|
|
// Because the way the actual token is scanned, often the comments
|
|
// (if any) are skipped twice during the lexical analysis.
|
|
// Thus, we need to skip adding a comment if the comment array already
|
|
// handled it.
|
|
if (state.lastCommentStart >= start) {
|
|
return;
|
|
}
|
|
state.lastCommentStart = start;
|
|
|
|
comment = {
|
|
type: type,
|
|
value: value,
|
|
};
|
|
if (extra.range) {
|
|
comment.range = [start, end];
|
|
}
|
|
if (extra.loc) {
|
|
comment.loc = loc;
|
|
}
|
|
extra.comments.push(comment);
|
|
if (extra.attachComment) {
|
|
extra.leadingComments.push(comment);
|
|
extra.trailingComments.push(comment);
|
|
}
|
|
}
|
|
|
|
function skipSingleLineComment(offset) {
|
|
var start, loc, ch, comment;
|
|
|
|
start = index - offset;
|
|
loc = {
|
|
start: {
|
|
line: lineNumber,
|
|
column: index - lineStart - offset,
|
|
},
|
|
};
|
|
|
|
while (index < length) {
|
|
ch = source.charCodeAt(index);
|
|
++index;
|
|
if (isLineTerminator(ch)) {
|
|
if (extra.comments) {
|
|
comment = source.slice(start + offset, index - 1);
|
|
loc.end = {
|
|
line: lineNumber,
|
|
column: index - lineStart - 1,
|
|
};
|
|
addComment('Line', comment, start, index - 1, loc);
|
|
}
|
|
if (ch === 13 && source.charCodeAt(index) === 10) {
|
|
++index;
|
|
}
|
|
++lineNumber;
|
|
lineStart = index;
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (extra.comments) {
|
|
comment = source.slice(start + offset, index);
|
|
loc.end = {
|
|
line: lineNumber,
|
|
column: index - lineStart,
|
|
};
|
|
addComment('Line', comment, start, index, loc);
|
|
}
|
|
}
|
|
|
|
function skipMultiLineComment() {
|
|
var start, loc, ch, comment;
|
|
|
|
if (extra.comments) {
|
|
start = index - 2;
|
|
loc = {
|
|
start: {
|
|
line: lineNumber,
|
|
column: index - lineStart - 2,
|
|
},
|
|
};
|
|
}
|
|
|
|
while (index < length) {
|
|
ch = source.charCodeAt(index);
|
|
if (isLineTerminator(ch)) {
|
|
if (ch === 0x0d && source.charCodeAt(index + 1) === 0x0a) {
|
|
++index;
|
|
}
|
|
++lineNumber;
|
|
++index;
|
|
lineStart = index;
|
|
if (index >= length) {
|
|
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
}
|
|
} else if (ch === 0x2a) {
|
|
// Block comment ends with '*/'.
|
|
if (source.charCodeAt(index + 1) === 0x2f) {
|
|
++index;
|
|
++index;
|
|
if (extra.comments) {
|
|
comment = source.slice(start + 2, index - 2);
|
|
loc.end = {
|
|
line: lineNumber,
|
|
column: index - lineStart,
|
|
};
|
|
addComment('Block', comment, start, index, loc);
|
|
}
|
|
return;
|
|
}
|
|
++index;
|
|
} else {
|
|
++index;
|
|
}
|
|
}
|
|
|
|
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
}
|
|
|
|
function skipComment() {
|
|
var ch, start;
|
|
|
|
start = index === 0;
|
|
while (index < length) {
|
|
ch = source.charCodeAt(index);
|
|
|
|
if (isWhiteSpace(ch)) {
|
|
++index;
|
|
} else if (isLineTerminator(ch)) {
|
|
++index;
|
|
if (ch === 0x0d && source.charCodeAt(index) === 0x0a) {
|
|
++index;
|
|
}
|
|
++lineNumber;
|
|
lineStart = index;
|
|
start = true;
|
|
} else if (ch === 0x2f) {
|
|
// U+002F is '/'
|
|
ch = source.charCodeAt(index + 1);
|
|
if (ch === 0x2f) {
|
|
++index;
|
|
++index;
|
|
skipSingleLineComment(2);
|
|
start = true;
|
|
} else if (ch === 0x2a) {
|
|
// U+002A is '*'
|
|
++index;
|
|
++index;
|
|
skipMultiLineComment();
|
|
} else {
|
|
break;
|
|
}
|
|
} else if (start && ch === 0x2d) {
|
|
// U+002D is '-'
|
|
// U+003E is '>'
|
|
if (
|
|
source.charCodeAt(index + 1) === 0x2d &&
|
|
source.charCodeAt(index + 2) === 0x3e
|
|
) {
|
|
// '-->' is a single-line comment
|
|
index += 3;
|
|
skipSingleLineComment(3);
|
|
} else {
|
|
break;
|
|
}
|
|
} else if (ch === 0x3c) {
|
|
// U+003C is '<'
|
|
if (source.slice(index + 1, index + 4) === '!--') {
|
|
++index; // `<`
|
|
++index; // `!`
|
|
++index; // `-`
|
|
++index; // `-`
|
|
skipSingleLineComment(4);
|
|
} else {
|
|
break;
|
|
}
|
|
} 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;
|
|
|
|
ch = source.charCodeAt(index++);
|
|
id = String.fromCharCode(ch);
|
|
|
|
// '\u' (U+005C, U+0075) denotes an escaped character.
|
|
if (ch === 0x5c) {
|
|
if (source.charCodeAt(index) !== 0x75) {
|
|
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
}
|
|
++index;
|
|
ch = scanHexEscape('u');
|
|
if (!ch || ch === '\\' || !isIdentifierStart(ch.charCodeAt(0))) {
|
|
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
}
|
|
id = ch;
|
|
}
|
|
|
|
while (index < length) {
|
|
ch = source.charCodeAt(index);
|
|
if (!isIdentifierPart(ch)) {
|
|
break;
|
|
}
|
|
++index;
|
|
id += String.fromCharCode(ch);
|
|
|
|
// '\u' (U+005C, U+0075) denotes an escaped character.
|
|
if (ch === 0x5c) {
|
|
id = id.substr(0, id.length - 1);
|
|
if (source.charCodeAt(index) !== 0x75) {
|
|
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
}
|
|
++index;
|
|
ch = scanHexEscape('u');
|
|
if (!ch || ch === '\\' || !isIdentifierPart(ch.charCodeAt(0))) {
|
|
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
}
|
|
id += ch;
|
|
}
|
|
}
|
|
|
|
return id;
|
|
}
|
|
|
|
function getIdentifier() {
|
|
var start, ch;
|
|
|
|
start = index++;
|
|
while (index < length) {
|
|
ch = source.charCodeAt(index);
|
|
if (ch === 0x5c) {
|
|
// Blackslash (U+005C) marks Unicode escape sequence.
|
|
index = start;
|
|
return getEscapedIdentifier();
|
|
}
|
|
if (isIdentifierPart(ch)) {
|
|
++index;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return source.slice(start, index);
|
|
}
|
|
|
|
function scanIdentifier() {
|
|
var start, id, type;
|
|
|
|
start = index;
|
|
|
|
// Backslash (U+005C) starts an escaped character.
|
|
id =
|
|
source.charCodeAt(index) === 0x5c
|
|
? 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,
|
|
start: start,
|
|
end: index,
|
|
};
|
|
}
|
|
|
|
// 7.7 Punctuators
|
|
|
|
function scanPunctuator() {
|
|
var start = index,
|
|
code = source.charCodeAt(index),
|
|
code2,
|
|
ch1 = source[index],
|
|
ch2,
|
|
ch3,
|
|
ch4;
|
|
|
|
switch (code) {
|
|
// Check for most common single-character punctuators.
|
|
case 0x2e: // . dot
|
|
case 0x28: // ( open bracket
|
|
case 0x29: // ) close bracket
|
|
case 0x3b: // ; semicolon
|
|
case 0x2c: // , comma
|
|
case 0x7b: // { open curly brace
|
|
case 0x7d: // } close curly brace
|
|
case 0x5b: // [
|
|
case 0x5d: // ]
|
|
case 0x3a: // :
|
|
case 0x3f: // ?
|
|
case 0x7e: // ~
|
|
++index;
|
|
if (extra.tokenize) {
|
|
if (code === 0x28) {
|
|
extra.openParenToken = extra.tokens.length;
|
|
} else if (code === 0x7b) {
|
|
extra.openCurlyToken = extra.tokens.length;
|
|
}
|
|
}
|
|
return {
|
|
type: Token.Punctuator,
|
|
value: String.fromCharCode(code),
|
|
lineNumber: lineNumber,
|
|
lineStart: lineStart,
|
|
start: start,
|
|
end: index,
|
|
};
|
|
|
|
default:
|
|
code2 = source.charCodeAt(index + 1);
|
|
|
|
// '=' (U+003D) marks an assignment or comparison operator.
|
|
if (code2 === 0x3d) {
|
|
switch (code) {
|
|
case 0x2b: // +
|
|
case 0x2d: // -
|
|
case 0x2f: // /
|
|
case 0x3c: // <
|
|
case 0x3e: // >
|
|
case 0x5e: // ^
|
|
case 0x7c: // |
|
|
case 0x25: // %
|
|
case 0x26: // &
|
|
case 0x2a: // *
|
|
index += 2;
|
|
return {
|
|
type: Token.Punctuator,
|
|
value: String.fromCharCode(code) + String.fromCharCode(code2),
|
|
lineNumber: lineNumber,
|
|
lineStart: lineStart,
|
|
start: start,
|
|
end: index,
|
|
};
|
|
|
|
case 0x21: // !
|
|
case 0x3d: // =
|
|
index += 2;
|
|
|
|
// !== and ===
|
|
if (source.charCodeAt(index) === 0x3d) {
|
|
++index;
|
|
}
|
|
return {
|
|
type: Token.Punctuator,
|
|
value: source.slice(start, index),
|
|
lineNumber: lineNumber,
|
|
lineStart: lineStart,
|
|
start: start,
|
|
end: index,
|
|
};
|
|
}
|
|
}
|
|
}
|
|
|
|
// 4-character punctuator: >>>=
|
|
|
|
ch4 = source.substr(index, 4);
|
|
|
|
if (ch4 === '>>>=') {
|
|
index += 4;
|
|
return {
|
|
type: Token.Punctuator,
|
|
value: ch4,
|
|
lineNumber: lineNumber,
|
|
lineStart: lineStart,
|
|
start: start,
|
|
end: index,
|
|
};
|
|
}
|
|
|
|
// 3-character punctuators: === !== >>> <<= >>=
|
|
|
|
ch3 = ch4.substr(0, 3);
|
|
|
|
if (ch3 === '>>>' || ch3 === '<<=' || ch3 === '>>=') {
|
|
index += 3;
|
|
return {
|
|
type: Token.Punctuator,
|
|
value: ch3,
|
|
lineNumber: lineNumber,
|
|
lineStart: lineStart,
|
|
start: start,
|
|
end: index,
|
|
};
|
|
}
|
|
|
|
// Other 2-character punctuators: ++ -- << >> && ||
|
|
ch2 = ch3.substr(0, 2);
|
|
|
|
if ((ch1 === ch2[1] && '+-<>&|'.indexOf(ch1) >= 0) || ch2 === '=>') {
|
|
index += 2;
|
|
return {
|
|
type: Token.Punctuator,
|
|
value: ch2,
|
|
lineNumber: lineNumber,
|
|
lineStart: lineStart,
|
|
start: start,
|
|
end: index,
|
|
};
|
|
}
|
|
|
|
// 1-character punctuators: < > = ! + - * % & | ^ /
|
|
if ('<>=!+-*%&|^/'.indexOf(ch1) >= 0) {
|
|
++index;
|
|
return {
|
|
type: Token.Punctuator,
|
|
value: ch1,
|
|
lineNumber: lineNumber,
|
|
lineStart: lineStart,
|
|
start: start,
|
|
end: index,
|
|
};
|
|
}
|
|
|
|
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
}
|
|
|
|
// 7.8.3 Numeric Literals
|
|
|
|
function scanHexLiteral(start) {
|
|
var number = '';
|
|
|
|
while (index < length) {
|
|
if (!isHexDigit(source[index])) {
|
|
break;
|
|
}
|
|
number += source[index++];
|
|
}
|
|
|
|
if (number.length === 0) {
|
|
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
}
|
|
|
|
if (isIdentifierStart(source.charCodeAt(index))) {
|
|
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
}
|
|
|
|
return {
|
|
type: Token.NumericLiteral,
|
|
value: parseInt('0x' + number, 16),
|
|
lineNumber: lineNumber,
|
|
lineStart: lineStart,
|
|
start: start,
|
|
end: index,
|
|
};
|
|
}
|
|
|
|
function scanOctalLiteral(start) {
|
|
var number = '0' + source[index++];
|
|
while (index < length) {
|
|
if (!isOctalDigit(source[index])) {
|
|
break;
|
|
}
|
|
number += source[index++];
|
|
}
|
|
|
|
if (
|
|
isIdentifierStart(source.charCodeAt(index)) ||
|
|
isDecimalDigit(source.charCodeAt(index))
|
|
) {
|
|
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
}
|
|
|
|
return {
|
|
type: Token.NumericLiteral,
|
|
value: parseInt(number, 8),
|
|
octal: true,
|
|
lineNumber: lineNumber,
|
|
lineStart: lineStart,
|
|
start: start,
|
|
end: index,
|
|
};
|
|
}
|
|
|
|
function scanNumericLiteral() {
|
|
var number, start, ch;
|
|
|
|
ch = source[index];
|
|
assert(
|
|
isDecimalDigit(ch.charCodeAt(0)) || 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') {
|
|
++index;
|
|
return scanHexLiteral(start);
|
|
}
|
|
if (isOctalDigit(ch)) {
|
|
return scanOctalLiteral(start);
|
|
}
|
|
|
|
// decimal number starts with '0' such as '09' is illegal.
|
|
if (ch && isDecimalDigit(ch.charCodeAt(0))) {
|
|
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
}
|
|
}
|
|
|
|
while (isDecimalDigit(source.charCodeAt(index))) {
|
|
number += source[index++];
|
|
}
|
|
ch = source[index];
|
|
}
|
|
|
|
if (ch === '.') {
|
|
number += source[index++];
|
|
while (isDecimalDigit(source.charCodeAt(index))) {
|
|
number += source[index++];
|
|
}
|
|
ch = source[index];
|
|
}
|
|
|
|
if (ch === 'e' || ch === 'E') {
|
|
number += source[index++];
|
|
|
|
ch = source[index];
|
|
if (ch === '+' || ch === '-') {
|
|
number += source[index++];
|
|
}
|
|
if (isDecimalDigit(source.charCodeAt(index))) {
|
|
while (isDecimalDigit(source.charCodeAt(index))) {
|
|
number += source[index++];
|
|
}
|
|
} else {
|
|
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
}
|
|
}
|
|
|
|
if (isIdentifierStart(source.charCodeAt(index))) {
|
|
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
}
|
|
|
|
return {
|
|
type: Token.NumericLiteral,
|
|
value: parseFloat(number),
|
|
lineNumber: lineNumber,
|
|
lineStart: lineStart,
|
|
start: start,
|
|
end: index,
|
|
};
|
|
}
|
|
|
|
// 7.8.4 String Literals
|
|
|
|
function scanStringLiteral() {
|
|
var str = '',
|
|
quote,
|
|
start,
|
|
ch,
|
|
code,
|
|
unescaped,
|
|
restore,
|
|
octal = false,
|
|
startLineNumber,
|
|
startLineStart;
|
|
startLineNumber = lineNumber;
|
|
startLineStart = lineStart;
|
|
|
|
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 (!ch || !isLineTerminator(ch.charCodeAt(0))) {
|
|
switch (ch) {
|
|
case 'u':
|
|
case 'x':
|
|
restore = index;
|
|
unescaped = scanHexEscape(ch);
|
|
if (unescaped) {
|
|
str += unescaped;
|
|
} else {
|
|
index = restore;
|
|
str += ch;
|
|
}
|
|
break;
|
|
case 'n':
|
|
str += '\n';
|
|
break;
|
|
case 'r':
|
|
str += '\r';
|
|
break;
|
|
case 't':
|
|
str += '\t';
|
|
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;
|
|
}
|
|
lineStart = index;
|
|
}
|
|
} else if (isLineTerminator(ch.charCodeAt(0))) {
|
|
break;
|
|
} else {
|
|
str += ch;
|
|
}
|
|
}
|
|
|
|
if (quote !== '') {
|
|
throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
}
|
|
|
|
return {
|
|
type: Token.StringLiteral,
|
|
value: str,
|
|
octal: octal,
|
|
startLineNumber: startLineNumber,
|
|
startLineStart: startLineStart,
|
|
lineNumber: lineNumber,
|
|
lineStart: lineStart,
|
|
start: start,
|
|
end: index,
|
|
};
|
|
}
|
|
|
|
function testRegExp(pattern, flags) {
|
|
var value;
|
|
try {
|
|
value = new RegExp(pattern, flags);
|
|
} catch (e) {
|
|
throwError({}, Messages.InvalidRegExp);
|
|
}
|
|
return value;
|
|
}
|
|
|
|
function scanRegExpBody() {
|
|
var ch, str, classMarker, terminated, body;
|
|
|
|
ch = source[index];
|
|
assert(ch === '/', 'Regular expression literal must start with a slash');
|
|
str = source[index++];
|
|
|
|
classMarker = false;
|
|
terminated = false;
|
|
while (index < length) {
|
|
ch = source[index++];
|
|
str += ch;
|
|
if (ch === '\\') {
|
|
ch = source[index++];
|
|
// ECMA-262 7.8.5
|
|
if (isLineTerminator(ch.charCodeAt(0))) {
|
|
throwError({}, Messages.UnterminatedRegExp);
|
|
}
|
|
str += ch;
|
|
} else if (isLineTerminator(ch.charCodeAt(0))) {
|
|
throwError({}, Messages.UnterminatedRegExp);
|
|
} else if (classMarker) {
|
|
if (ch === ']') {
|
|
classMarker = false;
|
|
}
|
|
} else {
|
|
if (ch === '/') {
|
|
terminated = true;
|
|
break;
|
|
} else if (ch === '[') {
|
|
classMarker = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!terminated) {
|
|
throwError({}, Messages.UnterminatedRegExp);
|
|
}
|
|
|
|
// Exclude leading and trailing slash.
|
|
body = str.substr(1, str.length - 2);
|
|
return {
|
|
value: body,
|
|
literal: str,
|
|
};
|
|
}
|
|
|
|
function scanRegExpFlags() {
|
|
var ch, str, flags, restore;
|
|
|
|
str = '';
|
|
flags = '';
|
|
while (index < length) {
|
|
ch = source[index];
|
|
if (!isIdentifierPart(ch.charCodeAt(0))) {
|
|
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';
|
|
}
|
|
throwErrorTolerant({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
} else {
|
|
str += '\\';
|
|
throwErrorTolerant({}, Messages.UnexpectedToken, 'ILLEGAL');
|
|
}
|
|
} else {
|
|
flags += ch;
|
|
str += ch;
|
|
}
|
|
}
|
|
|
|
return {
|
|
value: flags,
|
|
literal: str,
|
|
};
|
|
}
|
|
|
|
function scanRegExp() {
|
|
var start, body, flags, pattern, value;
|
|
|
|
lookahead = null;
|
|
skipComment();
|
|
start = index;
|
|
|
|
body = scanRegExpBody();
|
|
flags = scanRegExpFlags();
|
|
value = testRegExp(body.value, flags.value);
|
|
|
|
if (extra.tokenize) {
|
|
return {
|
|
type: Token.RegularExpression,
|
|
value: value,
|
|
lineNumber: lineNumber,
|
|
lineStart: lineStart,
|
|
start: start,
|
|
end: index,
|
|
};
|
|
}
|
|
|
|
return {
|
|
literal: body.literal + flags.literal,
|
|
value: value,
|
|
start: start,
|
|
end: index,
|
|
};
|
|
}
|
|
|
|
function collectRegex() {
|
|
var pos, loc, regex, token;
|
|
|
|
skipComment();
|
|
|
|
pos = index;
|
|
loc = {
|
|
start: {
|
|
line: lineNumber,
|
|
column: index - lineStart,
|
|
},
|
|
};
|
|
|
|
regex = scanRegExp();
|
|
loc.end = {
|
|
line: lineNumber,
|
|
column: index - lineStart,
|
|
};
|
|
|
|
/* istanbul ignore next */
|
|
if (!extra.tokenize) {
|
|
// Pop the previous token, which is likely '/' or '/='
|
|
if (extra.tokens.length > 0) {
|
|
token = extra.tokens[extra.tokens.length - 1];
|
|
if (token.range[0] === pos && token.type === 'Punctuator') {
|
|
if (token.value === '/' || token.value === '/=') {
|
|
extra.tokens.pop();
|
|
}
|
|
}
|
|
}
|
|
|
|
extra.tokens.push({
|
|
type: 'RegularExpression',
|
|
value: regex.literal,
|
|
range: [pos, index],
|
|
loc: loc,
|
|
});
|
|
}
|
|
|
|
return regex;
|
|
}
|
|
|
|
function isIdentifierName(token) {
|
|
return (
|
|
token.type === Token.Identifier ||
|
|
token.type === Token.Keyword ||
|
|
token.type === Token.BooleanLiteral ||
|
|
token.type === Token.NullLiteral
|
|
);
|
|
}
|
|
|
|
function advanceSlash() {
|
|
var prevToken, checkToken;
|
|
// Using the following algorithm:
|
|
// https://github.com/mozilla/sweet.js/wiki/design
|
|
prevToken = extra.tokens[extra.tokens.length - 1];
|
|
if (!prevToken) {
|
|
// Nothing before that: it cannot be a division.
|
|
return collectRegex();
|
|
}
|
|
if (prevToken.type === 'Punctuator') {
|
|
if (prevToken.value === ']') {
|
|
return scanPunctuator();
|
|
}
|
|
if (prevToken.value === ')') {
|
|
checkToken = extra.tokens[extra.openParenToken - 1];
|
|
if (
|
|
checkToken &&
|
|
checkToken.type === 'Keyword' &&
|
|
(checkToken.value === 'if' ||
|
|
checkToken.value === 'while' ||
|
|
checkToken.value === 'for' ||
|
|
checkToken.value === 'with')
|
|
) {
|
|
return collectRegex();
|
|
}
|
|
return scanPunctuator();
|
|
}
|
|
if (prevToken.value === '}') {
|
|
// Dividing a function by anything makes little sense,
|
|
// but we have to check for that.
|
|
if (
|
|
extra.tokens[extra.openCurlyToken - 3] &&
|
|
extra.tokens[extra.openCurlyToken - 3].type === 'Keyword'
|
|
) {
|
|
// Anonymous function.
|
|
checkToken = extra.tokens[extra.openCurlyToken - 4];
|
|
if (!checkToken) {
|
|
return scanPunctuator();
|
|
}
|
|
} else if (
|
|
extra.tokens[extra.openCurlyToken - 4] &&
|
|
extra.tokens[extra.openCurlyToken - 4].type === 'Keyword'
|
|
) {
|
|
// Named function.
|
|
checkToken = extra.tokens[extra.openCurlyToken - 5];
|
|
if (!checkToken) {
|
|
return collectRegex();
|
|
}
|
|
} else {
|
|
return scanPunctuator();
|
|
}
|
|
// checkToken determines whether the function is
|
|
// a declaration or an expression.
|
|
if (FnExprTokens.indexOf(checkToken.value) >= 0) {
|
|
// It is an expression.
|
|
return scanPunctuator();
|
|
}
|
|
// It is a declaration.
|
|
return collectRegex();
|
|
}
|
|
return collectRegex();
|
|
}
|
|
if (prevToken.type === 'Keyword') {
|
|
return collectRegex();
|
|
}
|
|
return scanPunctuator();
|
|
}
|
|
|
|
function advance() {
|
|
var ch;
|
|
|
|
skipComment();
|
|
|
|
if (index >= length) {
|
|
return {
|
|
type: Token.EOF,
|
|
lineNumber: lineNumber,
|
|
lineStart: lineStart,
|
|
start: index,
|
|
end: index,
|
|
};
|
|
}
|
|
|
|
ch = source.charCodeAt(index);
|
|
|
|
if (isIdentifierStart(ch)) {
|
|
return scanIdentifier();
|
|
}
|
|
|
|
// Very common: ( and ) and ;
|
|
if (ch === 0x28 || ch === 0x29 || ch === 0x3b) {
|
|
return scanPunctuator();
|
|
}
|
|
|
|
// String literal starts with single quote (U+0027) or double quote (U+0022).
|
|
if (ch === 0x27 || ch === 0x22) {
|
|
return scanStringLiteral();
|
|
}
|
|
|
|
// Dot (.) U+002E can also start a floating-point number, hence the need
|
|
// to check the next character.
|
|
if (ch === 0x2e) {
|
|
if (isDecimalDigit(source.charCodeAt(index + 1))) {
|
|
return scanNumericLiteral();
|
|
}
|
|
return scanPunctuator();
|
|
}
|
|
|
|
if (isDecimalDigit(ch)) {
|
|
return scanNumericLiteral();
|
|
}
|
|
|
|
// Slash (/) U+002F can also start a regex.
|
|
if (extra.tokenize && ch === 0x2f) {
|
|
return advanceSlash();
|
|
}
|
|
|
|
return scanPunctuator();
|
|
}
|
|
|
|
function collectToken() {
|
|
var loc, token, range, value;
|
|
|
|
skipComment();
|
|
loc = {
|
|
start: {
|
|
line: lineNumber,
|
|
column: index - lineStart,
|
|
},
|
|
};
|
|
|
|
token = advance();
|
|
loc.end = {
|
|
line: lineNumber,
|
|
column: index - lineStart,
|
|
};
|
|
|
|
if (token.type !== Token.EOF) {
|
|
value = source.slice(token.start, token.end);
|
|
extra.tokens.push({
|
|
type: TokenName[token.type],
|
|
value: value,
|
|
range: [token.start, token.end],
|
|
loc: loc,
|
|
});
|
|
}
|
|
|
|
return token;
|
|
}
|
|
|
|
function lex() {
|
|
var token;
|
|
|
|
token = lookahead;
|
|
index = token.end;
|
|
lineNumber = token.lineNumber;
|
|
lineStart = token.lineStart;
|
|
|
|
lookahead =
|
|
typeof extra.tokens !== 'undefined' ? collectToken() : advance();
|
|
|
|
index = token.end;
|
|
lineNumber = token.lineNumber;
|
|
lineStart = token.lineStart;
|
|
|
|
return token;
|
|
}
|
|
|
|
function peek() {
|
|
var pos, line, start;
|
|
|
|
pos = index;
|
|
line = lineNumber;
|
|
start = lineStart;
|
|
lookahead =
|
|
typeof extra.tokens !== 'undefined' ? collectToken() : advance();
|
|
index = pos;
|
|
lineNumber = line;
|
|
lineStart = start;
|
|
}
|
|
|
|
function Position(line, column) {
|
|
this.line = line;
|
|
this.column = column;
|
|
}
|
|
|
|
function SourceLocation(startLine, startColumn, line, column) {
|
|
this.start = new Position(startLine, startColumn);
|
|
this.end = new Position(line, column);
|
|
}
|
|
|
|
SyntaxTreeDelegate = {
|
|
name: 'SyntaxTree',
|
|
|
|
processComment: function(node) {
|
|
var lastChild, trailingComments;
|
|
|
|
if (node.type === Syntax.Program) {
|
|
if (node.body.length > 0) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (extra.trailingComments.length > 0) {
|
|
if (extra.trailingComments[0].range[0] >= node.range[1]) {
|
|
trailingComments = extra.trailingComments;
|
|
extra.trailingComments = [];
|
|
} else {
|
|
extra.trailingComments.length = 0;
|
|
}
|
|
} else {
|
|
if (
|
|
extra.bottomRightStack.length > 0 &&
|
|
extra.bottomRightStack[extra.bottomRightStack.length - 1]
|
|
.trailingComments &&
|
|
extra.bottomRightStack[extra.bottomRightStack.length - 1]
|
|
.trailingComments[0].range[0] >= node.range[1]
|
|
) {
|
|
trailingComments =
|
|
extra.bottomRightStack[extra.bottomRightStack.length - 1]
|
|
.trailingComments;
|
|
delete extra.bottomRightStack[extra.bottomRightStack.length - 1]
|
|
.trailingComments;
|
|
}
|
|
}
|
|
|
|
// Eating the stack.
|
|
while (
|
|
extra.bottomRightStack.length > 0 &&
|
|
extra.bottomRightStack[extra.bottomRightStack.length - 1].range[0] >=
|
|
node.range[0]
|
|
) {
|
|
lastChild = extra.bottomRightStack.pop();
|
|
}
|
|
|
|
if (lastChild) {
|
|
if (
|
|
lastChild.leadingComments &&
|
|
lastChild.leadingComments[lastChild.leadingComments.length - 1]
|
|
.range[1] <= node.range[0]
|
|
) {
|
|
node.leadingComments = lastChild.leadingComments;
|
|
delete lastChild.leadingComments;
|
|
}
|
|
} else if (
|
|
extra.leadingComments.length > 0 &&
|
|
extra.leadingComments[extra.leadingComments.length - 1].range[1] <=
|
|
node.range[0]
|
|
) {
|
|
node.leadingComments = extra.leadingComments;
|
|
extra.leadingComments = [];
|
|
}
|
|
|
|
if (trailingComments) {
|
|
node.trailingComments = trailingComments;
|
|
}
|
|
|
|
extra.bottomRightStack.push(node);
|
|
},
|
|
|
|
markEnd: function(node, startToken) {
|
|
if (extra.range) {
|
|
node.range = [startToken.start, index];
|
|
}
|
|
if (extra.loc) {
|
|
node.loc = new SourceLocation(
|
|
startToken.startLineNumber === undefined
|
|
? startToken.lineNumber
|
|
: startToken.startLineNumber,
|
|
startToken.start -
|
|
(startToken.startLineStart === undefined
|
|
? startToken.lineStart
|
|
: startToken.startLineStart),
|
|
lineNumber,
|
|
index - lineStart
|
|
);
|
|
this.postProcess(node);
|
|
}
|
|
|
|
if (extra.attachComment) {
|
|
this.processComment(node);
|
|
}
|
|
return node;
|
|
},
|
|
|
|
postProcess: function(node) {
|
|
if (extra.source) {
|
|
node.loc.source = extra.source;
|
|
}
|
|
return node;
|
|
},
|
|
|
|
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) {
|
|
var type =
|
|
operator === '||' || operator === '&&'
|
|
? Syntax.LogicalExpression
|
|
: Syntax.BinaryExpression;
|
|
return {
|
|
type: type,
|
|
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: source.slice(token.start, token.end),
|
|
};
|
|
},
|
|
|
|
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,
|
|
prefix: true,
|
|
};
|
|
},
|
|
|
|
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) {
|
|
assert(index < args.length, 'Message reference must be in range');
|
|
return args[index];
|
|
});
|
|
|
|
if (typeof token.lineNumber === 'number') {
|
|
error = new Error('Line ' + token.lineNumber + ': ' + msg);
|
|
error.index = token.start;
|
|
error.lineNumber = token.lineNumber;
|
|
error.column = token.start - lineStart + 1;
|
|
} else {
|
|
error = new Error('Line ' + lineNumber + ': ' + msg);
|
|
error.index = index;
|
|
error.lineNumber = lineNumber;
|
|
error.column = index - lineStart + 1;
|
|
}
|
|
|
|
error.description = msg;
|
|
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: immediately a semicolon (U+003B).
|
|
if (source.charCodeAt(index) === 0x3b || match(';')) {
|
|
lex();
|
|
return;
|
|
}
|
|
|
|
line = lineNumber;
|
|
skipComment();
|
|
if (lineNumber !== line) {
|
|
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 = [],
|
|
startToken;
|
|
|
|
startToken = lookahead;
|
|
expect('[');
|
|
|
|
while (!match(']')) {
|
|
if (match(',')) {
|
|
lex();
|
|
elements.push(null);
|
|
} else {
|
|
elements.push(parseAssignmentExpression());
|
|
|
|
if (!match(']')) {
|
|
expect(',');
|
|
}
|
|
}
|
|
}
|
|
|
|
lex();
|
|
|
|
return delegate.markEnd(
|
|
delegate.createArrayExpression(elements),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
// 11.1.5 Object Initialiser
|
|
|
|
function parsePropertyFunction(param, first) {
|
|
var previousStrict, body, startToken;
|
|
|
|
previousStrict = strict;
|
|
startToken = lookahead;
|
|
body = parseFunctionSourceElements();
|
|
if (first && strict && isRestrictedWord(param[0].name)) {
|
|
throwErrorTolerant(first, Messages.StrictParamName);
|
|
}
|
|
strict = previousStrict;
|
|
return delegate.markEnd(
|
|
delegate.createFunctionExpression(null, param, [], body),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
function parseObjectPropertyKey() {
|
|
var token, startToken;
|
|
|
|
startToken = lookahead;
|
|
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.markEnd(delegate.createLiteral(token), startToken);
|
|
}
|
|
|
|
return delegate.markEnd(
|
|
delegate.createIdentifier(token.value),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
function parseObjectProperty() {
|
|
var token, key, id, value, param, startToken;
|
|
|
|
token = lookahead;
|
|
startToken = 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.markEnd(
|
|
delegate.createProperty('get', key, value),
|
|
startToken
|
|
);
|
|
}
|
|
if (token.value === 'set' && !match(':')) {
|
|
key = parseObjectPropertyKey();
|
|
expect('(');
|
|
token = lookahead;
|
|
if (token.type !== Token.Identifier) {
|
|
expect(')');
|
|
throwErrorTolerant(token, Messages.UnexpectedToken, token.value);
|
|
value = parsePropertyFunction([]);
|
|
} else {
|
|
param = [parseVariableIdentifier()];
|
|
expect(')');
|
|
value = parsePropertyFunction(param, token);
|
|
}
|
|
return delegate.markEnd(
|
|
delegate.createProperty('set', key, value),
|
|
startToken
|
|
);
|
|
}
|
|
expect(':');
|
|
value = parseAssignmentExpression();
|
|
return delegate.markEnd(
|
|
delegate.createProperty('init', id, value),
|
|
startToken
|
|
);
|
|
}
|
|
if (token.type === Token.EOF || token.type === Token.Punctuator) {
|
|
throwUnexpected(token);
|
|
} else {
|
|
key = parseObjectPropertyKey();
|
|
expect(':');
|
|
value = parseAssignmentExpression();
|
|
return delegate.markEnd(
|
|
delegate.createProperty('init', key, value),
|
|
startToken
|
|
);
|
|
}
|
|
}
|
|
|
|
function parseObjectInitialiser() {
|
|
var properties = [],
|
|
property,
|
|
name,
|
|
key,
|
|
kind,
|
|
map = {},
|
|
toString = String,
|
|
startToken;
|
|
|
|
startToken = lookahead;
|
|
|
|
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;
|
|
|
|
key = '$' + name;
|
|
if (Object.prototype.hasOwnProperty.call(map, key)) {
|
|
if (map[key] === 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[key] & kind) {
|
|
throwErrorTolerant({}, Messages.AccessorGetSet);
|
|
}
|
|
}
|
|
map[key] |= kind;
|
|
} else {
|
|
map[key] = kind;
|
|
}
|
|
|
|
properties.push(property);
|
|
|
|
if (!match('}')) {
|
|
expect(',');
|
|
}
|
|
}
|
|
|
|
expect('}');
|
|
|
|
return delegate.markEnd(
|
|
delegate.createObjectExpression(properties),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
// 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, expr, startToken;
|
|
|
|
if (match('(')) {
|
|
return parseGroupExpression();
|
|
}
|
|
|
|
if (match('[')) {
|
|
return parseArrayInitialiser();
|
|
}
|
|
|
|
if (match('{')) {
|
|
return parseObjectInitialiser();
|
|
}
|
|
|
|
type = lookahead.type;
|
|
startToken = lookahead;
|
|
|
|
if (type === Token.Identifier) {
|
|
expr = delegate.createIdentifier(lex().value);
|
|
} else if (
|
|
type === Token.StringLiteral ||
|
|
type === Token.NumericLiteral
|
|
) {
|
|
if (strict && lookahead.octal) {
|
|
throwErrorTolerant(lookahead, Messages.StrictOctalLiteral);
|
|
}
|
|
expr = delegate.createLiteral(lex());
|
|
} else if (type === Token.Keyword) {
|
|
if (matchKeyword('function')) {
|
|
return parseFunctionExpression();
|
|
}
|
|
if (matchKeyword('this')) {
|
|
lex();
|
|
expr = delegate.createThisExpression();
|
|
} else {
|
|
throwUnexpected(lex());
|
|
}
|
|
} else if (type === Token.BooleanLiteral) {
|
|
token = lex();
|
|
token.value = token.value === 'true';
|
|
expr = delegate.createLiteral(token);
|
|
} else if (type === Token.NullLiteral) {
|
|
token = lex();
|
|
token.value = null;
|
|
expr = delegate.createLiteral(token);
|
|
} else if (match('/') || match('/=')) {
|
|
if (typeof extra.tokens !== 'undefined') {
|
|
expr = delegate.createLiteral(collectRegex());
|
|
} else {
|
|
expr = delegate.createLiteral(scanRegExp());
|
|
}
|
|
peek();
|
|
} else {
|
|
throwUnexpected(lex());
|
|
}
|
|
|
|
return delegate.markEnd(expr, startToken);
|
|
}
|
|
|
|
// 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, startToken;
|
|
|
|
startToken = lookahead;
|
|
token = lex();
|
|
|
|
if (!isIdentifierName(token)) {
|
|
throwUnexpected(token);
|
|
}
|
|
|
|
return delegate.markEnd(
|
|
delegate.createIdentifier(token.value),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
function parseNonComputedMember() {
|
|
expect('.');
|
|
|
|
return parseNonComputedProperty();
|
|
}
|
|
|
|
function parseComputedMember() {
|
|
var expr;
|
|
|
|
expect('[');
|
|
|
|
expr = parseExpression();
|
|
|
|
expect(']');
|
|
|
|
return expr;
|
|
}
|
|
|
|
function parseNewExpression() {
|
|
var callee, args, startToken;
|
|
|
|
startToken = lookahead;
|
|
expectKeyword('new');
|
|
callee = parseLeftHandSideExpression();
|
|
args = match('(') ? parseArguments() : [];
|
|
|
|
return delegate.markEnd(
|
|
delegate.createNewExpression(callee, args),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
function parseLeftHandSideExpressionAllowCall() {
|
|
var previousAllowIn, expr, args, property, startToken;
|
|
|
|
startToken = lookahead;
|
|
|
|
previousAllowIn = state.allowIn;
|
|
state.allowIn = true;
|
|
expr = matchKeyword('new')
|
|
? parseNewExpression()
|
|
: parsePrimaryExpression();
|
|
state.allowIn = previousAllowIn;
|
|
|
|
for (;;) {
|
|
if (match('.')) {
|
|
property = parseNonComputedMember();
|
|
expr = delegate.createMemberExpression('.', expr, property);
|
|
} else if (match('(')) {
|
|
args = parseArguments();
|
|
expr = delegate.createCallExpression(expr, args);
|
|
} else if (match('[')) {
|
|
property = parseComputedMember();
|
|
expr = delegate.createMemberExpression('[', expr, property);
|
|
} else {
|
|
break;
|
|
}
|
|
delegate.markEnd(expr, startToken);
|
|
}
|
|
|
|
return expr;
|
|
}
|
|
|
|
function parseLeftHandSideExpression() {
|
|
var previousAllowIn, expr, property, startToken;
|
|
|
|
startToken = lookahead;
|
|
|
|
previousAllowIn = state.allowIn;
|
|
expr = matchKeyword('new')
|
|
? parseNewExpression()
|
|
: parsePrimaryExpression();
|
|
state.allowIn = previousAllowIn;
|
|
|
|
while (match('.') || match('[')) {
|
|
if (match('[')) {
|
|
property = parseComputedMember();
|
|
expr = delegate.createMemberExpression('[', expr, property);
|
|
} else {
|
|
property = parseNonComputedMember();
|
|
expr = delegate.createMemberExpression('.', expr, property);
|
|
}
|
|
delegate.markEnd(expr, startToken);
|
|
}
|
|
|
|
return expr;
|
|
}
|
|
|
|
// 11.3 Postfix Expressions
|
|
|
|
function parsePostfixExpression() {
|
|
var expr,
|
|
token,
|
|
startToken = lookahead;
|
|
|
|
expr = parseLeftHandSideExpressionAllowCall();
|
|
|
|
if (lookahead.type === Token.Punctuator) {
|
|
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)) {
|
|
throwErrorTolerant({}, Messages.InvalidLHSInAssignment);
|
|
}
|
|
|
|
token = lex();
|
|
expr = delegate.markEnd(
|
|
delegate.createPostfixExpression(token.value, expr),
|
|
startToken
|
|
);
|
|
}
|
|
}
|
|
|
|
return expr;
|
|
}
|
|
|
|
// 11.4 Unary Operators
|
|
|
|
function parseUnaryExpression() {
|
|
var token, expr, startToken;
|
|
|
|
if (
|
|
lookahead.type !== Token.Punctuator &&
|
|
lookahead.type !== Token.Keyword
|
|
) {
|
|
expr = parsePostfixExpression();
|
|
} else if (match('++') || match('--')) {
|
|
startToken = lookahead;
|
|
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)) {
|
|
throwErrorTolerant({}, Messages.InvalidLHSInAssignment);
|
|
}
|
|
|
|
expr = delegate.createUnaryExpression(token.value, expr);
|
|
expr = delegate.markEnd(expr, startToken);
|
|
} else if (match('+') || match('-') || match('~') || match('!')) {
|
|
startToken = lookahead;
|
|
token = lex();
|
|
expr = parseUnaryExpression();
|
|
expr = delegate.createUnaryExpression(token.value, expr);
|
|
expr = delegate.markEnd(expr, startToken);
|
|
} else if (
|
|
matchKeyword('delete') ||
|
|
matchKeyword('void') ||
|
|
matchKeyword('typeof')
|
|
) {
|
|
startToken = lookahead;
|
|
token = lex();
|
|
expr = parseUnaryExpression();
|
|
expr = delegate.createUnaryExpression(token.value, expr);
|
|
expr = delegate.markEnd(expr, startToken);
|
|
if (
|
|
strict &&
|
|
expr.operator === 'delete' &&
|
|
expr.argument.type === Syntax.Identifier
|
|
) {
|
|
throwErrorTolerant({}, Messages.StrictDelete);
|
|
}
|
|
} else {
|
|
expr = parsePostfixExpression();
|
|
}
|
|
|
|
return expr;
|
|
}
|
|
|
|
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
|
|
|
|
function parseBinaryExpression() {
|
|
var marker, markers, expr, token, prec, stack, right, operator, left, i;
|
|
|
|
marker = lookahead;
|
|
left = parseUnaryExpression();
|
|
|
|
token = lookahead;
|
|
prec = binaryPrecedence(token, state.allowIn);
|
|
if (prec === 0) {
|
|
return left;
|
|
}
|
|
token.prec = prec;
|
|
lex();
|
|
|
|
markers = [marker, lookahead];
|
|
right = parseUnaryExpression();
|
|
|
|
stack = [left, token, right];
|
|
|
|
while ((prec = binaryPrecedence(lookahead, state.allowIn)) > 0) {
|
|
// Reduce: make a binary expression from the three topmost entries.
|
|
while (stack.length > 2 && prec <= stack[stack.length - 2].prec) {
|
|
right = stack.pop();
|
|
operator = stack.pop().value;
|
|
left = stack.pop();
|
|
expr = delegate.createBinaryExpression(operator, left, right);
|
|
markers.pop();
|
|
marker = markers[markers.length - 1];
|
|
delegate.markEnd(expr, marker);
|
|
stack.push(expr);
|
|
}
|
|
|
|
// Shift.
|
|
token = lex();
|
|
token.prec = prec;
|
|
stack.push(token);
|
|
markers.push(lookahead);
|
|
expr = parseUnaryExpression();
|
|
stack.push(expr);
|
|
}
|
|
|
|
// Final reduce to clean-up the stack.
|
|
i = stack.length - 1;
|
|
expr = stack[i];
|
|
markers.pop();
|
|
while (i > 1) {
|
|
expr = delegate.createBinaryExpression(
|
|
stack[i - 1].value,
|
|
stack[i - 2],
|
|
expr
|
|
);
|
|
i -= 2;
|
|
marker = markers.pop();
|
|
delegate.markEnd(expr, marker);
|
|
}
|
|
|
|
return expr;
|
|
}
|
|
|
|
// 11.12 Conditional Operator
|
|
|
|
function parseConditionalExpression() {
|
|
var expr, previousAllowIn, consequent, alternate, startToken;
|
|
|
|
startToken = lookahead;
|
|
|
|
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
|
|
);
|
|
delegate.markEnd(expr, startToken);
|
|
}
|
|
|
|
return expr;
|
|
}
|
|
|
|
// 11.13 Assignment Operators
|
|
|
|
function parseAssignmentExpression() {
|
|
var token, left, right, node, startToken;
|
|
|
|
token = lookahead;
|
|
startToken = lookahead;
|
|
|
|
node = left = parseConditionalExpression();
|
|
|
|
if (matchAssign()) {
|
|
// LeftHandSideExpression
|
|
if (!isLeftHandSide(left)) {
|
|
throwErrorTolerant({}, Messages.InvalidLHSInAssignment);
|
|
}
|
|
|
|
// 11.13.1
|
|
if (
|
|
strict &&
|
|
left.type === Syntax.Identifier &&
|
|
isRestrictedWord(left.name)
|
|
) {
|
|
throwErrorTolerant(token, Messages.StrictLHSAssignment);
|
|
}
|
|
|
|
token = lex();
|
|
right = parseAssignmentExpression();
|
|
node = delegate.markEnd(
|
|
delegate.createAssignmentExpression(token.value, left, right),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
// 11.14 Comma Operator
|
|
|
|
function parseExpression() {
|
|
var expr,
|
|
startToken = lookahead;
|
|
|
|
expr = parseAssignmentExpression();
|
|
|
|
if (match(',')) {
|
|
expr = delegate.createSequenceExpression([expr]);
|
|
|
|
while (index < length) {
|
|
if (!match(',')) {
|
|
break;
|
|
}
|
|
lex();
|
|
expr.expressions.push(parseAssignmentExpression());
|
|
}
|
|
|
|
delegate.markEnd(expr, startToken);
|
|
}
|
|
|
|
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, startToken;
|
|
|
|
startToken = lookahead;
|
|
expect('{');
|
|
|
|
block = parseStatementList();
|
|
|
|
expect('}');
|
|
|
|
return delegate.markEnd(delegate.createBlockStatement(block), startToken);
|
|
}
|
|
|
|
// 12.2 Variable Statement
|
|
|
|
function parseVariableIdentifier() {
|
|
var token, startToken;
|
|
|
|
startToken = lookahead;
|
|
token = lex();
|
|
|
|
if (token.type !== Token.Identifier) {
|
|
throwUnexpected(token);
|
|
}
|
|
|
|
return delegate.markEnd(
|
|
delegate.createIdentifier(token.value),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
function parseVariableDeclaration(kind) {
|
|
var init = null,
|
|
id,
|
|
startToken;
|
|
|
|
startToken = lookahead;
|
|
id = parseVariableIdentifier();
|
|
|
|
// 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.markEnd(
|
|
delegate.createVariableDeclarator(id, init),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
function parseVariableDeclarationList(kind) {
|
|
var list = [];
|
|
|
|
do {
|
|
list.push(parseVariableDeclaration(kind));
|
|
if (!match(',')) {
|
|
break;
|
|
}
|
|
lex();
|
|
} while (index < length);
|
|
|
|
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, startToken;
|
|
|
|
startToken = lookahead;
|
|
|
|
expectKeyword(kind);
|
|
|
|
declarations = parseVariableDeclarationList(kind);
|
|
|
|
consumeSemicolon();
|
|
|
|
return delegate.markEnd(
|
|
delegate.createVariableDeclaration(declarations, kind),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
// 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, declarations, startToken;
|
|
|
|
startToken = lookahead;
|
|
token = lex();
|
|
declarations = parseVariableDeclarationList();
|
|
|
|
return delegate.markEnd(
|
|
delegate.createVariableDeclaration(declarations, token.value),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
function parseForStatement() {
|
|
var init, test, update, left, right, body, oldInIteration;
|
|
|
|
init = test = update = null;
|
|
|
|
expectKeyword('for');
|
|
|
|
expect('(');
|
|
|
|
if (match(';')) {
|
|
lex();
|
|
} else {
|
|
if (matchKeyword('var') || matchKeyword('let')) {
|
|
state.allowIn = false;
|
|
init = parseForVariableDeclaration();
|
|
state.allowIn = true;
|
|
|
|
if (init.declarations.length === 1 && matchKeyword('in')) {
|
|
lex();
|
|
left = init;
|
|
right = parseExpression();
|
|
init = null;
|
|
}
|
|
} else {
|
|
state.allowIn = false;
|
|
init = parseExpression();
|
|
state.allowIn = true;
|
|
|
|
if (matchKeyword('in')) {
|
|
// LeftHandSideExpression
|
|
if (!isLeftHandSide(init)) {
|
|
throwErrorTolerant({}, Messages.InvalidLHSInForIn);
|
|
}
|
|
|
|
lex();
|
|
left = init;
|
|
right = parseExpression();
|
|
init = null;
|
|
}
|
|
}
|
|
|
|
if (typeof left === 'undefined') {
|
|
expect(';');
|
|
}
|
|
}
|
|
|
|
if (typeof left === 'undefined') {
|
|
if (!match(';')) {
|
|
test = parseExpression();
|
|
}
|
|
expect(';');
|
|
|
|
if (!match(')')) {
|
|
update = parseExpression();
|
|
}
|
|
}
|
|
|
|
expect(')');
|
|
|
|
oldInIteration = state.inIteration;
|
|
state.inIteration = true;
|
|
|
|
body = parseStatement();
|
|
|
|
state.inIteration = oldInIteration;
|
|
|
|
return typeof left === 'undefined'
|
|
? delegate.createForStatement(init, test, update, body)
|
|
: delegate.createForInStatement(left, right, body);
|
|
}
|
|
|
|
// 12.7 The continue statement
|
|
|
|
function parseContinueStatement() {
|
|
var label = null,
|
|
key;
|
|
|
|
expectKeyword('continue');
|
|
|
|
// Optimize the most common form: 'continue;'.
|
|
if (source.charCodeAt(index) === 0x3b) {
|
|
lex();
|
|
|
|
if (!state.inIteration) {
|
|
throwError({}, Messages.IllegalContinue);
|
|
}
|
|
|
|
return delegate.createContinueStatement(null);
|
|
}
|
|
|
|
if (peekLineTerminator()) {
|
|
if (!state.inIteration) {
|
|
throwError({}, Messages.IllegalContinue);
|
|
}
|
|
|
|
return delegate.createContinueStatement(null);
|
|
}
|
|
|
|
if (lookahead.type === Token.Identifier) {
|
|
label = parseVariableIdentifier();
|
|
|
|
key = '$' + label.name;
|
|
if (!Object.prototype.hasOwnProperty.call(state.labelSet, key)) {
|
|
throwError({}, Messages.UnknownLabel, label.name);
|
|
}
|
|
}
|
|
|
|
consumeSemicolon();
|
|
|
|
if (label === null && !state.inIteration) {
|
|
throwError({}, Messages.IllegalContinue);
|
|
}
|
|
|
|
return delegate.createContinueStatement(label);
|
|
}
|
|
|
|
// 12.8 The break statement
|
|
|
|
function parseBreakStatement() {
|
|
var label = null,
|
|
key;
|
|
|
|
expectKeyword('break');
|
|
|
|
// Catch the very common case first: immediately a semicolon (U+003B).
|
|
if (source.charCodeAt(index) === 0x3b) {
|
|
lex();
|
|
|
|
if (!(state.inIteration || state.inSwitch)) {
|
|
throwError({}, Messages.IllegalBreak);
|
|
}
|
|
|
|
return delegate.createBreakStatement(null);
|
|
}
|
|
|
|
if (peekLineTerminator()) {
|
|
if (!(state.inIteration || state.inSwitch)) {
|
|
throwError({}, Messages.IllegalBreak);
|
|
}
|
|
|
|
return delegate.createBreakStatement(null);
|
|
}
|
|
|
|
if (lookahead.type === Token.Identifier) {
|
|
label = parseVariableIdentifier();
|
|
|
|
key = '$' + label.name;
|
|
if (!Object.prototype.hasOwnProperty.call(state.labelSet, key)) {
|
|
throwError({}, Messages.UnknownLabel, label.name);
|
|
}
|
|
}
|
|
|
|
consumeSemicolon();
|
|
|
|
if (label === null && !(state.inIteration || state.inSwitch)) {
|
|
throwError({}, Messages.IllegalBreak);
|
|
}
|
|
|
|
return delegate.createBreakStatement(label);
|
|
}
|
|
|
|
// 12.9 The return statement
|
|
|
|
function parseReturnStatement() {
|
|
var argument = null;
|
|
|
|
expectKeyword('return');
|
|
|
|
if (!state.inFunctionBody) {
|
|
throwErrorTolerant({}, Messages.IllegalReturn);
|
|
}
|
|
|
|
// 'return' followed by a space and an identifier is very common.
|
|
if (source.charCodeAt(index) === 0x20) {
|
|
if (isIdentifierStart(source.charCodeAt(index + 1))) {
|
|
argument = parseExpression();
|
|
consumeSemicolon();
|
|
return delegate.createReturnStatement(argument);
|
|
}
|
|
}
|
|
|
|
if (peekLineTerminator()) {
|
|
return delegate.createReturnStatement(null);
|
|
}
|
|
|
|
if (!match(';')) {
|
|
if (!match('}') && lookahead.type !== Token.EOF) {
|
|
argument = parseExpression();
|
|
}
|
|
}
|
|
|
|
consumeSemicolon();
|
|
|
|
return delegate.createReturnStatement(argument);
|
|
}
|
|
|
|
// 12.10 The with statement
|
|
|
|
function parseWithStatement() {
|
|
var object, body;
|
|
|
|
if (strict) {
|
|
// TODO(ikarienator): Should we update the test cases instead?
|
|
skipComment();
|
|
throwErrorTolerant({}, Messages.StrictModeWith);
|
|
}
|
|
|
|
expectKeyword('with');
|
|
|
|
expect('(');
|
|
|
|
object = parseExpression();
|
|
|
|
expect(')');
|
|
|
|
body = parseStatement();
|
|
|
|
return delegate.createWithStatement(object, body);
|
|
}
|
|
|
|
// 12.10 The swith statement
|
|
|
|
function parseSwitchCase() {
|
|
var test,
|
|
consequent = [],
|
|
statement,
|
|
startToken;
|
|
|
|
startToken = lookahead;
|
|
if (matchKeyword('default')) {
|
|
lex();
|
|
test = null;
|
|
} else {
|
|
expectKeyword('case');
|
|
test = parseExpression();
|
|
}
|
|
expect(':');
|
|
|
|
while (index < length) {
|
|
if (match('}') || matchKeyword('default') || matchKeyword('case')) {
|
|
break;
|
|
}
|
|
statement = parseStatement();
|
|
consequent.push(statement);
|
|
}
|
|
|
|
return delegate.markEnd(
|
|
delegate.createSwitchCase(test, consequent),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
function parseSwitchStatement() {
|
|
var discriminant, cases, clause, oldInSwitch, defaultFound;
|
|
|
|
expectKeyword('switch');
|
|
|
|
expect('(');
|
|
|
|
discriminant = parseExpression();
|
|
|
|
expect(')');
|
|
|
|
expect('{');
|
|
|
|
cases = [];
|
|
|
|
if (match('}')) {
|
|
lex();
|
|
return delegate.createSwitchStatement(discriminant, cases);
|
|
}
|
|
|
|
oldInSwitch = state.inSwitch;
|
|
state.inSwitch = true;
|
|
defaultFound = false;
|
|
|
|
while (index < length) {
|
|
if (match('}')) {
|
|
break;
|
|
}
|
|
clause = parseSwitchCase();
|
|
if (clause.test === null) {
|
|
if (defaultFound) {
|
|
throwError({}, Messages.MultipleDefaultsInSwitch);
|
|
}
|
|
defaultFound = true;
|
|
}
|
|
cases.push(clause);
|
|
}
|
|
|
|
state.inSwitch = oldInSwitch;
|
|
|
|
expect('}');
|
|
|
|
return delegate.createSwitchStatement(discriminant, cases);
|
|
}
|
|
|
|
// 12.13 The throw statement
|
|
|
|
function parseThrowStatement() {
|
|
var argument;
|
|
|
|
expectKeyword('throw');
|
|
|
|
if (peekLineTerminator()) {
|
|
throwError({}, Messages.NewlineAfterThrow);
|
|
}
|
|
|
|
argument = parseExpression();
|
|
|
|
consumeSemicolon();
|
|
|
|
return delegate.createThrowStatement(argument);
|
|
}
|
|
|
|
// 12.14 The try statement
|
|
|
|
function parseCatchClause() {
|
|
var param, body, startToken;
|
|
|
|
startToken = lookahead;
|
|
expectKeyword('catch');
|
|
|
|
expect('(');
|
|
if (match(')')) {
|
|
throwUnexpected(lookahead);
|
|
}
|
|
|
|
param = parseVariableIdentifier();
|
|
// 12.14.1
|
|
if (strict && isRestrictedWord(param.name)) {
|
|
throwErrorTolerant({}, Messages.StrictCatchVariable);
|
|
}
|
|
|
|
expect(')');
|
|
body = parseBlock();
|
|
return delegate.markEnd(
|
|
delegate.createCatchClause(param, body),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
function parseTryStatement() {
|
|
var block,
|
|
handlers = [],
|
|
finalizer = null;
|
|
|
|
expectKeyword('try');
|
|
|
|
block = parseBlock();
|
|
|
|
if (matchKeyword('catch')) {
|
|
handlers.push(parseCatchClause());
|
|
}
|
|
|
|
if (matchKeyword('finally')) {
|
|
lex();
|
|
finalizer = parseBlock();
|
|
}
|
|
|
|
if (handlers.length === 0 && !finalizer) {
|
|
throwError({}, Messages.NoCatchOrFinally);
|
|
}
|
|
|
|
return delegate.createTryStatement(block, [], handlers, finalizer);
|
|
}
|
|
|
|
// 12.15 The debugger statement
|
|
|
|
function parseDebuggerStatement() {
|
|
expectKeyword('debugger');
|
|
|
|
consumeSemicolon();
|
|
|
|
return delegate.createDebuggerStatement();
|
|
}
|
|
|
|
// 12 Statements
|
|
|
|
function parseStatement() {
|
|
var type = lookahead.type,
|
|
expr,
|
|
labeledBody,
|
|
key,
|
|
startToken;
|
|
|
|
if (type === Token.EOF) {
|
|
throwUnexpected(lookahead);
|
|
}
|
|
|
|
if (type === Token.Punctuator && lookahead.value === '{') {
|
|
return parseBlock();
|
|
}
|
|
|
|
startToken = lookahead;
|
|
|
|
if (type === Token.Punctuator) {
|
|
switch (lookahead.value) {
|
|
case ';':
|
|
return delegate.markEnd(parseEmptyStatement(), startToken);
|
|
case '(':
|
|
return delegate.markEnd(parseExpressionStatement(), startToken);
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (type === Token.Keyword) {
|
|
switch (lookahead.value) {
|
|
case 'break':
|
|
return delegate.markEnd(parseBreakStatement(), startToken);
|
|
case 'continue':
|
|
return delegate.markEnd(parseContinueStatement(), startToken);
|
|
case 'debugger':
|
|
return delegate.markEnd(parseDebuggerStatement(), startToken);
|
|
case 'do':
|
|
return delegate.markEnd(parseDoWhileStatement(), startToken);
|
|
case 'for':
|
|
return delegate.markEnd(parseForStatement(), startToken);
|
|
case 'function':
|
|
return delegate.markEnd(parseFunctionDeclaration(), startToken);
|
|
case 'if':
|
|
return delegate.markEnd(parseIfStatement(), startToken);
|
|
case 'return':
|
|
return delegate.markEnd(parseReturnStatement(), startToken);
|
|
case 'switch':
|
|
return delegate.markEnd(parseSwitchStatement(), startToken);
|
|
case 'throw':
|
|
return delegate.markEnd(parseThrowStatement(), startToken);
|
|
case 'try':
|
|
return delegate.markEnd(parseTryStatement(), startToken);
|
|
case 'var':
|
|
return delegate.markEnd(parseVariableStatement(), startToken);
|
|
case 'while':
|
|
return delegate.markEnd(parseWhileStatement(), startToken);
|
|
case 'with':
|
|
return delegate.markEnd(parseWithStatement(), startToken);
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
expr = parseExpression();
|
|
|
|
// 12.12 Labelled Statements
|
|
if (expr.type === Syntax.Identifier && match(':')) {
|
|
lex();
|
|
|
|
key = '$' + expr.name;
|
|
if (Object.prototype.hasOwnProperty.call(state.labelSet, key)) {
|
|
throwError({}, Messages.Redeclaration, 'Label', expr.name);
|
|
}
|
|
|
|
state.labelSet[key] = true;
|
|
labeledBody = parseStatement();
|
|
delete state.labelSet[key];
|
|
return delegate.markEnd(
|
|
delegate.createLabeledStatement(expr, labeledBody),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
consumeSemicolon();
|
|
|
|
return delegate.markEnd(
|
|
delegate.createExpressionStatement(expr),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
// 13 Function Definition
|
|
|
|
function parseFunctionSourceElements() {
|
|
var sourceElement,
|
|
sourceElements = [],
|
|
token,
|
|
directive,
|
|
firstRestricted,
|
|
oldLabelSet,
|
|
oldInIteration,
|
|
oldInSwitch,
|
|
oldInFunctionBody,
|
|
startToken;
|
|
|
|
startToken = lookahead;
|
|
expect('{');
|
|
|
|
while (index < length) {
|
|
if (lookahead.type !== Token.StringLiteral) {
|
|
break;
|
|
}
|
|
token = lookahead;
|
|
|
|
sourceElement = parseSourceElement();
|
|
sourceElements.push(sourceElement);
|
|
if (sourceElement.expression.type !== Syntax.Literal) {
|
|
// this is not directive
|
|
break;
|
|
}
|
|
directive = source.slice(token.start + 1, token.end - 1);
|
|
if (directive === 'use strict') {
|
|
strict = true;
|
|
if (firstRestricted) {
|
|
throwErrorTolerant(firstRestricted, Messages.StrictOctalLiteral);
|
|
}
|
|
} else {
|
|
if (!firstRestricted && token.octal) {
|
|
firstRestricted = token;
|
|
}
|
|
}
|
|
}
|
|
|
|
oldLabelSet = state.labelSet;
|
|
oldInIteration = state.inIteration;
|
|
oldInSwitch = state.inSwitch;
|
|
oldInFunctionBody = state.inFunctionBody;
|
|
|
|
state.labelSet = {};
|
|
state.inIteration = false;
|
|
state.inSwitch = false;
|
|
state.inFunctionBody = true;
|
|
|
|
while (index < length) {
|
|
if (match('}')) {
|
|
break;
|
|
}
|
|
sourceElement = parseSourceElement();
|
|
if (typeof sourceElement === 'undefined') {
|
|
break;
|
|
}
|
|
sourceElements.push(sourceElement);
|
|
}
|
|
|
|
expect('}');
|
|
|
|
state.labelSet = oldLabelSet;
|
|
state.inIteration = oldInIteration;
|
|
state.inSwitch = oldInSwitch;
|
|
state.inFunctionBody = oldInFunctionBody;
|
|
|
|
return delegate.markEnd(
|
|
delegate.createBlockStatement(sourceElements),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
function parseParams(firstRestricted) {
|
|
var param,
|
|
params = [],
|
|
token,
|
|
stricted,
|
|
paramSet,
|
|
key,
|
|
message;
|
|
expect('(');
|
|
|
|
if (!match(')')) {
|
|
paramSet = {};
|
|
while (index < length) {
|
|
token = lookahead;
|
|
param = parseVariableIdentifier();
|
|
key = '$' + token.value;
|
|
if (strict) {
|
|
if (isRestrictedWord(token.value)) {
|
|
stricted = token;
|
|
message = Messages.StrictParamName;
|
|
}
|
|
if (Object.prototype.hasOwnProperty.call(paramSet, key)) {
|
|
stricted = token;
|
|
message = Messages.StrictParamDupe;
|
|
}
|
|
} else if (!firstRestricted) {
|
|
if (isRestrictedWord(token.value)) {
|
|
firstRestricted = token;
|
|
message = Messages.StrictParamName;
|
|
} else if (isStrictModeReservedWord(token.value)) {
|
|
firstRestricted = token;
|
|
message = Messages.StrictReservedWord;
|
|
} else if (Object.prototype.hasOwnProperty.call(paramSet, key)) {
|
|
firstRestricted = token;
|
|
message = Messages.StrictParamDupe;
|
|
}
|
|
}
|
|
params.push(param);
|
|
paramSet[key] = true;
|
|
if (match(')')) {
|
|
break;
|
|
}
|
|
expect(',');
|
|
}
|
|
}
|
|
|
|
expect(')');
|
|
|
|
return {
|
|
params: params,
|
|
stricted: stricted,
|
|
firstRestricted: firstRestricted,
|
|
message: message,
|
|
};
|
|
}
|
|
|
|
function parseFunctionDeclaration() {
|
|
var id,
|
|
params = [],
|
|
body,
|
|
token,
|
|
stricted,
|
|
tmp,
|
|
firstRestricted,
|
|
message,
|
|
previousStrict,
|
|
startToken;
|
|
|
|
startToken = lookahead;
|
|
|
|
expectKeyword('function');
|
|
token = lookahead;
|
|
id = parseVariableIdentifier();
|
|
if (strict) {
|
|
if (isRestrictedWord(token.value)) {
|
|
throwErrorTolerant(token, Messages.StrictFunctionName);
|
|
}
|
|
} else {
|
|
if (isRestrictedWord(token.value)) {
|
|
firstRestricted = token;
|
|
message = Messages.StrictFunctionName;
|
|
} else if (isStrictModeReservedWord(token.value)) {
|
|
firstRestricted = token;
|
|
message = Messages.StrictReservedWord;
|
|
}
|
|
}
|
|
|
|
tmp = parseParams(firstRestricted);
|
|
params = tmp.params;
|
|
stricted = tmp.stricted;
|
|
firstRestricted = tmp.firstRestricted;
|
|
if (tmp.message) {
|
|
message = tmp.message;
|
|
}
|
|
|
|
previousStrict = strict;
|
|
body = parseFunctionSourceElements();
|
|
if (strict && firstRestricted) {
|
|
throwError(firstRestricted, message);
|
|
}
|
|
if (strict && stricted) {
|
|
throwErrorTolerant(stricted, message);
|
|
}
|
|
strict = previousStrict;
|
|
|
|
return delegate.markEnd(
|
|
delegate.createFunctionDeclaration(id, params, [], body),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
function parseFunctionExpression() {
|
|
var token,
|
|
id = null,
|
|
stricted,
|
|
firstRestricted,
|
|
message,
|
|
tmp,
|
|
params = [],
|
|
body,
|
|
previousStrict,
|
|
startToken;
|
|
|
|
startToken = lookahead;
|
|
expectKeyword('function');
|
|
|
|
if (!match('(')) {
|
|
token = lookahead;
|
|
id = parseVariableIdentifier();
|
|
if (strict) {
|
|
if (isRestrictedWord(token.value)) {
|
|
throwErrorTolerant(token, Messages.StrictFunctionName);
|
|
}
|
|
} else {
|
|
if (isRestrictedWord(token.value)) {
|
|
firstRestricted = token;
|
|
message = Messages.StrictFunctionName;
|
|
} else if (isStrictModeReservedWord(token.value)) {
|
|
firstRestricted = token;
|
|
message = Messages.StrictReservedWord;
|
|
}
|
|
}
|
|
}
|
|
|
|
tmp = parseParams(firstRestricted);
|
|
params = tmp.params;
|
|
stricted = tmp.stricted;
|
|
firstRestricted = tmp.firstRestricted;
|
|
if (tmp.message) {
|
|
message = tmp.message;
|
|
}
|
|
|
|
previousStrict = strict;
|
|
body = parseFunctionSourceElements();
|
|
if (strict && firstRestricted) {
|
|
throwError(firstRestricted, message);
|
|
}
|
|
if (strict && stricted) {
|
|
throwErrorTolerant(stricted, message);
|
|
}
|
|
strict = previousStrict;
|
|
|
|
return delegate.markEnd(
|
|
delegate.createFunctionExpression(id, params, [], body),
|
|
startToken
|
|
);
|
|
}
|
|
|
|
// 14 Program
|
|
|
|
function parseSourceElement() {
|
|
if (lookahead.type === Token.Keyword) {
|
|
switch (lookahead.value) {
|
|
case 'const':
|
|
case 'let':
|
|
return parseConstLetDeclaration(lookahead.value);
|
|
case 'function':
|
|
return parseFunctionDeclaration();
|
|
default:
|
|
return parseStatement();
|
|
}
|
|
}
|
|
|
|
if (lookahead.type !== Token.EOF) {
|
|
return parseStatement();
|
|
}
|
|
}
|
|
|
|
function parseSourceElements() {
|
|
var sourceElement,
|
|
sourceElements = [],
|
|
token,
|
|
directive,
|
|
firstRestricted;
|
|
|
|
while (index < length) {
|
|
token = lookahead;
|
|
if (token.type !== Token.StringLiteral) {
|
|
break;
|
|
}
|
|
|
|
sourceElement = parseSourceElement();
|
|
sourceElements.push(sourceElement);
|
|
if (sourceElement.expression.type !== Syntax.Literal) {
|
|
// this is not directive
|
|
break;
|
|
}
|
|
directive = source.slice(token.start + 1, token.end - 1);
|
|
if (directive === 'use strict') {
|
|
strict = true;
|
|
if (firstRestricted) {
|
|
throwErrorTolerant(firstRestricted, Messages.StrictOctalLiteral);
|
|
}
|
|
} else {
|
|
if (!firstRestricted && token.octal) {
|
|
firstRestricted = token;
|
|
}
|
|
}
|
|
}
|
|
|
|
while (index < length) {
|
|
sourceElement = parseSourceElement();
|
|
/* istanbul ignore if */
|
|
if (typeof sourceElement === 'undefined') {
|
|
break;
|
|
}
|
|
sourceElements.push(sourceElement);
|
|
}
|
|
return sourceElements;
|
|
}
|
|
|
|
function parseProgram() {
|
|
var body, startToken;
|
|
|
|
skipComment();
|
|
peek();
|
|
startToken = lookahead;
|
|
strict = false;
|
|
|
|
body = parseSourceElements();
|
|
return delegate.markEnd(delegate.createProgram(body), startToken);
|
|
}
|
|
|
|
function filterTokenLocation() {
|
|
var i,
|
|
entry,
|
|
token,
|
|
tokens = [];
|
|
|
|
for (i = 0; i < extra.tokens.length; ++i) {
|
|
entry = extra.tokens[i];
|
|
token = {
|
|
type: entry.type,
|
|
value: entry.value,
|
|
};
|
|
if (extra.range) {
|
|
token.range = entry.range;
|
|
}
|
|
if (extra.loc) {
|
|
token.loc = entry.loc;
|
|
}
|
|
tokens.push(token);
|
|
}
|
|
|
|
extra.tokens = tokens;
|
|
}
|
|
|
|
function tokenize(code, options) {
|
|
var toString, token, tokens;
|
|
|
|
toString = String;
|
|
if (typeof code !== 'string' && !(code instanceof String)) {
|
|
code = toString(code);
|
|
}
|
|
|
|
delegate = SyntaxTreeDelegate;
|
|
source = code;
|
|
index = 0;
|
|
lineNumber = source.length > 0 ? 1 : 0;
|
|
lineStart = 0;
|
|
length = source.length;
|
|
lookahead = null;
|
|
state = {
|
|
allowIn: true,
|
|
labelSet: {},
|
|
inFunctionBody: false,
|
|
inIteration: false,
|
|
inSwitch: false,
|
|
lastCommentStart: -1,
|
|
};
|
|
|
|
extra = {};
|
|
|
|
// Options matching.
|
|
options = options || {};
|
|
|
|
// Of course we collect tokens here.
|
|
options.tokens = true;
|
|
extra.tokens = [];
|
|
extra.tokenize = true;
|
|
// The following two fields are necessary to compute the Regex tokens.
|
|
extra.openParenToken = -1;
|
|
extra.openCurlyToken = -1;
|
|
|
|
extra.range = typeof options.range === 'boolean' && options.range;
|
|
extra.loc = typeof options.loc === 'boolean' && options.loc;
|
|
|
|
if (typeof options.comment === 'boolean' && options.comment) {
|
|
extra.comments = [];
|
|
}
|
|
if (typeof options.tolerant === 'boolean' && options.tolerant) {
|
|
extra.errors = [];
|
|
}
|
|
|
|
try {
|
|
peek();
|
|
if (lookahead.type === Token.EOF) {
|
|
return extra.tokens;
|
|
}
|
|
|
|
token = lex();
|
|
while (lookahead.type !== Token.EOF) {
|
|
try {
|
|
token = lex();
|
|
} catch (lexError) {
|
|
token = lookahead;
|
|
if (extra.errors) {
|
|
extra.errors.push(lexError);
|
|
// We have to break on the first error
|
|
// to avoid infinite loops.
|
|
break;
|
|
} else {
|
|
throw lexError;
|
|
}
|
|
}
|
|
}
|
|
|
|
filterTokenLocation();
|
|
tokens = extra.tokens;
|
|
if (typeof extra.comments !== 'undefined') {
|
|
tokens.comments = extra.comments;
|
|
}
|
|
if (typeof extra.errors !== 'undefined') {
|
|
tokens.errors = extra.errors;
|
|
}
|
|
} catch (e) {
|
|
throw e;
|
|
} finally {
|
|
extra = {};
|
|
}
|
|
return tokens;
|
|
}
|
|
|
|
function parse(code, options) {
|
|
var program, toString;
|
|
|
|
toString = String;
|
|
if (typeof code !== 'string' && !(code instanceof String)) {
|
|
code = toString(code);
|
|
}
|
|
|
|
delegate = SyntaxTreeDelegate;
|
|
source = code;
|
|
index = 0;
|
|
lineNumber = source.length > 0 ? 1 : 0;
|
|
lineStart = 0;
|
|
length = source.length;
|
|
lookahead = null;
|
|
state = {
|
|
allowIn: true,
|
|
labelSet: {},
|
|
inFunctionBody: false,
|
|
inIteration: false,
|
|
inSwitch: false,
|
|
lastCommentStart: -1,
|
|
};
|
|
|
|
extra = {};
|
|
if (typeof options !== 'undefined') {
|
|
extra.range = typeof options.range === 'boolean' && options.range;
|
|
extra.loc = typeof options.loc === 'boolean' && options.loc;
|
|
extra.attachComment =
|
|
typeof options.attachComment === 'boolean' && options.attachComment;
|
|
|
|
if (
|
|
extra.loc &&
|
|
options.source !== null &&
|
|
options.source !== undefined
|
|
) {
|
|
extra.source = toString(options.source);
|
|
}
|
|
|
|
if (typeof options.tokens === 'boolean' && options.tokens) {
|
|
extra.tokens = [];
|
|
}
|
|
if (typeof options.comment === 'boolean' && options.comment) {
|
|
extra.comments = [];
|
|
}
|
|
if (typeof options.tolerant === 'boolean' && options.tolerant) {
|
|
extra.errors = [];
|
|
}
|
|
if (extra.attachComment) {
|
|
extra.range = true;
|
|
extra.comments = [];
|
|
extra.bottomRightStack = [];
|
|
extra.trailingComments = [];
|
|
extra.leadingComments = [];
|
|
}
|
|
}
|
|
|
|
try {
|
|
program = parseProgram();
|
|
if (typeof extra.comments !== 'undefined') {
|
|
program.comments = extra.comments;
|
|
}
|
|
if (typeof extra.tokens !== 'undefined') {
|
|
filterTokenLocation();
|
|
program.tokens = extra.tokens;
|
|
}
|
|
if (typeof extra.errors !== 'undefined') {
|
|
program.errors = extra.errors;
|
|
}
|
|
} catch (e) {
|
|
throw e;
|
|
} finally {
|
|
extra = {};
|
|
}
|
|
|
|
return program;
|
|
}
|
|
|
|
// Sync with *.json manifests.
|
|
exports.version = '1.2.2';
|
|
|
|
exports.tokenize = tokenize;
|
|
|
|
exports.parse = parse;
|
|
|
|
// Deep copy.
|
|
/* istanbul ignore next */
|
|
exports.Syntax = (function() {
|
|
var name,
|
|
types = {};
|
|
|
|
if (typeof Object.create === 'function') {
|
|
types = Object.create(null);
|
|
}
|
|
|
|
for (name in Syntax) {
|
|
if (Syntax.hasOwnProperty(name)) {
|
|
types[name] = Syntax[name];
|
|
}
|
|
}
|
|
|
|
if (typeof Object.freeze === 'function') {
|
|
Object.freeze(types);
|
|
}
|
|
|
|
return types;
|
|
})();
|
|
});
|
|
/* vim: set sw=4 ts=4 et tw=80 : */
|
|
})(null);
|
|
/*!
|
|
* falafel (c) James Halliday / MIT License
|
|
* https://github.com/substack/node-falafel
|
|
*/
|
|
|
|
(function(require, module) {
|
|
var parse = require('esprima').parse;
|
|
var objectKeys =
|
|
Object.keys ||
|
|
function(obj) {
|
|
var keys = [];
|
|
for (var key in obj) keys.push(key);
|
|
return keys;
|
|
};
|
|
var forEach = function(xs, fn) {
|
|
if (xs.forEach) return xs.forEach(fn);
|
|
for (var i = 0; i < xs.length; i++) {
|
|
fn.call(xs, xs[i], i, xs);
|
|
}
|
|
};
|
|
|
|
var isArray =
|
|
Array.isArray ||
|
|
function(xs) {
|
|
return Object.prototype.toString.call(xs) === '[object Array]';
|
|
};
|
|
|
|
module.exports = function(src, opts, fn) {
|
|
if (typeof opts === 'function') {
|
|
fn = opts;
|
|
opts = {};
|
|
}
|
|
if (typeof src === 'object') {
|
|
opts = src;
|
|
src = opts.source;
|
|
delete opts.source;
|
|
}
|
|
src = src === undefined ? opts.source : src;
|
|
opts.range = true;
|
|
if (typeof src !== 'string') src = String(src);
|
|
|
|
var ast = parse(src, opts);
|
|
|
|
var result = {
|
|
chunks: src.split(''),
|
|
toString: function() {
|
|
return result.chunks.join('');
|
|
},
|
|
inspect: function() {
|
|
return result.toString();
|
|
},
|
|
};
|
|
var index = 0;
|
|
|
|
(function walk(node, parent) {
|
|
insertHelpers(node, parent, result.chunks);
|
|
|
|
forEach(objectKeys(node), function(key) {
|
|
if (key === 'parent') return;
|
|
|
|
var child = node[key];
|
|
if (isArray(child)) {
|
|
forEach(child, function(c) {
|
|
if (c && typeof c.type === 'string') {
|
|
walk(c, node);
|
|
}
|
|
});
|
|
} else if (child && typeof child.type === 'string') {
|
|
insertHelpers(child, node, result.chunks);
|
|
walk(child, node);
|
|
}
|
|
});
|
|
fn(node);
|
|
})(ast, undefined);
|
|
|
|
return result;
|
|
};
|
|
|
|
function insertHelpers(node, parent, chunks) {
|
|
if (!node.range) return;
|
|
|
|
node.parent = parent;
|
|
|
|
node.source = function() {
|
|
return chunks.slice(node.range[0], node.range[1]).join('');
|
|
};
|
|
|
|
if (node.update && typeof node.update === 'object') {
|
|
var prev = node.update;
|
|
forEach(objectKeys(prev), function(key) {
|
|
update[key] = prev[key];
|
|
});
|
|
node.update = update;
|
|
} else {
|
|
node.update = update;
|
|
}
|
|
|
|
function update(s) {
|
|
chunks[node.range[0]] = s;
|
|
for (var i = node.range[0] + 1; i < node.range[1]; i++) {
|
|
chunks[i] = '';
|
|
}
|
|
}
|
|
}
|
|
|
|
window.falafel = module.exports;
|
|
})(
|
|
function() {
|
|
return { parse: esprima.parse };
|
|
},
|
|
{ exports: {} }
|
|
);
|
|
var inBrowser = typeof window !== 'undefined' && this === window;
|
|
var parseAndModify = inBrowser ? window.falafel : require('falafel');
|
|
|
|
(inBrowser ? window : exports).blanket = (function() {
|
|
var linesToAddTracking = [
|
|
'ExpressionStatement',
|
|
'BreakStatement',
|
|
'ContinueStatement',
|
|
'VariableDeclaration',
|
|
'ReturnStatement',
|
|
'ThrowStatement',
|
|
'TryStatement',
|
|
'FunctionDeclaration',
|
|
'IfStatement',
|
|
'WhileStatement',
|
|
'DoWhileStatement',
|
|
'ForStatement',
|
|
'ForInStatement',
|
|
'SwitchStatement',
|
|
'WithStatement',
|
|
],
|
|
linesToAddBrackets = [
|
|
'IfStatement',
|
|
'WhileStatement',
|
|
'DoWhileStatement',
|
|
'ForStatement',
|
|
'ForInStatement',
|
|
'WithStatement',
|
|
],
|
|
__blanket,
|
|
copynumber = Math.floor(Math.random() * 1000),
|
|
coverageInfo = {},
|
|
options = {
|
|
reporter: null,
|
|
adapter: null,
|
|
filter: null,
|
|
customVariable: null,
|
|
loader: null,
|
|
ignoreScriptError: false,
|
|
existingRequireJS: false,
|
|
autoStart: false,
|
|
timeout: 180,
|
|
ignoreCors: false,
|
|
branchTracking: false,
|
|
sourceURL: false,
|
|
debug: false,
|
|
engineOnly: false,
|
|
testReadyCallback: null,
|
|
commonJS: false,
|
|
instrumentCache: false,
|
|
modulePattern: null,
|
|
};
|
|
|
|
if (inBrowser && typeof window.blanket !== 'undefined') {
|
|
__blanket = window.blanket.noConflict();
|
|
}
|
|
|
|
_blanket = {
|
|
noConflict: function() {
|
|
if (__blanket) {
|
|
return __blanket;
|
|
}
|
|
return _blanket;
|
|
},
|
|
_getCopyNumber: function() {
|
|
//internal method
|
|
//for differentiating between instances
|
|
return copynumber;
|
|
},
|
|
extend: function(obj) {
|
|
//borrowed from underscore
|
|
_blanket._extend(_blanket, obj);
|
|
},
|
|
_extend: function(dest, source) {
|
|
if (source) {
|
|
for (var prop in source) {
|
|
if (
|
|
dest[prop] instanceof Object &&
|
|
typeof dest[prop] !== 'function'
|
|
) {
|
|
_blanket._extend(dest[prop], source[prop]);
|
|
} else {
|
|
dest[prop] = source[prop];
|
|
}
|
|
}
|
|
}
|
|
},
|
|
getCovVar: function() {
|
|
var opt = _blanket.options('customVariable');
|
|
if (opt) {
|
|
if (_blanket.options('debug')) {
|
|
console.log('BLANKET-Using custom tracking variable:', opt);
|
|
}
|
|
return inBrowser ? 'window.' + opt : opt;
|
|
}
|
|
return inBrowser ? 'window._$blanket' : '_$jscoverage';
|
|
},
|
|
options: function(key, value) {
|
|
if (typeof key !== 'string') {
|
|
_blanket._extend(options, key);
|
|
} else if (typeof value === 'undefined') {
|
|
return options[key];
|
|
} else {
|
|
options[key] = value;
|
|
}
|
|
},
|
|
instrument: function(config, next) {
|
|
//check instrumented hash table,
|
|
//return instrumented code if available.
|
|
var inFile = config.inputFile,
|
|
inFileName = config.inputFileName;
|
|
//check instrument cache
|
|
if (
|
|
_blanket.options('instrumentCache') &&
|
|
sessionStorage &&
|
|
sessionStorage.getItem('blanket_instrument_store-' + inFileName)
|
|
) {
|
|
if (_blanket.options('debug')) {
|
|
console.log(
|
|
'BLANKET-Reading instrumentation from cache: ',
|
|
inFileName
|
|
);
|
|
}
|
|
next(sessionStorage.getItem('blanket_instrument_store-' + inFileName));
|
|
} else {
|
|
var sourceArray = _blanket._prepareSource(inFile);
|
|
_blanket._trackingArraySetup = [];
|
|
//remove shebang
|
|
inFile = inFile.replace(/^\#\!.*/, '');
|
|
var instrumented = parseAndModify(
|
|
inFile,
|
|
{ loc: true, comment: true },
|
|
_blanket._addTracking(inFileName)
|
|
);
|
|
instrumented =
|
|
_blanket._trackingSetup(inFileName, sourceArray) + instrumented;
|
|
if (_blanket.options('sourceURL')) {
|
|
instrumented +=
|
|
'\n//@ sourceURL=' + inFileName.replace('http://', '');
|
|
}
|
|
if (_blanket.options('debug')) {
|
|
console.log('BLANKET-Instrumented file: ', inFileName);
|
|
}
|
|
if (_blanket.options('instrumentCache') && sessionStorage) {
|
|
if (_blanket.options('debug')) {
|
|
console.log(
|
|
'BLANKET-Saving instrumentation to cache: ',
|
|
inFileName
|
|
);
|
|
}
|
|
sessionStorage.setItem(
|
|
'blanket_instrument_store-' + inFileName,
|
|
instrumented
|
|
);
|
|
}
|
|
next(instrumented);
|
|
}
|
|
},
|
|
_trackingArraySetup: [],
|
|
_branchingArraySetup: [],
|
|
_prepareSource: function(source) {
|
|
return source
|
|
.replace(/\\/g, '\\\\')
|
|
.replace(/'/g, "\\'")
|
|
.replace(/(\r\n|\n|\r)/gm, '\n')
|
|
.split('\n');
|
|
},
|
|
_trackingSetup: function(filename, sourceArray) {
|
|
var branches = _blanket.options('branchTracking');
|
|
var sourceString = sourceArray.join("',\n'");
|
|
var intro = '';
|
|
var covVar = _blanket.getCovVar();
|
|
|
|
intro +=
|
|
'if (typeof ' + covVar + " === 'undefined') " + covVar + ' = {};\n';
|
|
if (branches) {
|
|
intro += 'var _$branchFcn=function(f,l,c,r){ ';
|
|
intro += 'if (!!r) { ';
|
|
intro +=
|
|
covVar +
|
|
'[f].branchData[l][c][0] = ' +
|
|
covVar +
|
|
'[f].branchData[l][c][0] || [];';
|
|
intro += covVar + '[f].branchData[l][c][0].push(r); }';
|
|
intro += 'else { ';
|
|
intro +=
|
|
covVar +
|
|
'[f].branchData[l][c][1] = ' +
|
|
covVar +
|
|
'[f].branchData[l][c][1] || [];';
|
|
intro += covVar + '[f].branchData[l][c][1].push(r); }';
|
|
intro += 'return r;};\n';
|
|
}
|
|
intro +=
|
|
'if (typeof ' + covVar + "['" + filename + "'] === 'undefined'){";
|
|
|
|
intro += covVar + "['" + filename + "']=[];\n";
|
|
if (branches) {
|
|
intro += covVar + "['" + filename + "'].branchData=[];\n";
|
|
}
|
|
intro +=
|
|
covVar + "['" + filename + "'].source=['" + sourceString + "'];\n";
|
|
//initialize array values
|
|
_blanket._trackingArraySetup
|
|
.sort(function(a, b) {
|
|
return parseInt(a, 10) > parseInt(b, 10);
|
|
})
|
|
.forEach(function(item) {
|
|
intro += covVar + "['" + filename + "'][" + item + ']=0;\n';
|
|
});
|
|
if (branches) {
|
|
_blanket._branchingArraySetup
|
|
.sort(function(a, b) {
|
|
return a.line > b.line;
|
|
})
|
|
.sort(function(a, b) {
|
|
return a.column > b.column;
|
|
})
|
|
.forEach(function(item) {
|
|
if (item.file === filename) {
|
|
intro +=
|
|
'if (typeof ' +
|
|
covVar +
|
|
"['" +
|
|
filename +
|
|
"'].branchData[" +
|
|
item.line +
|
|
"] === 'undefined'){\n";
|
|
intro +=
|
|
covVar +
|
|
"['" +
|
|
filename +
|
|
"'].branchData[" +
|
|
item.line +
|
|
']=[];\n';
|
|
intro += '}';
|
|
intro +=
|
|
covVar +
|
|
"['" +
|
|
filename +
|
|
"'].branchData[" +
|
|
item.line +
|
|
'][' +
|
|
item.column +
|
|
'] = [];\n';
|
|
intro +=
|
|
covVar +
|
|
"['" +
|
|
filename +
|
|
"'].branchData[" +
|
|
item.line +
|
|
'][' +
|
|
item.column +
|
|
'].consequent = ' +
|
|
JSON.stringify(item.consequent) +
|
|
';\n';
|
|
intro +=
|
|
covVar +
|
|
"['" +
|
|
filename +
|
|
"'].branchData[" +
|
|
item.line +
|
|
'][' +
|
|
item.column +
|
|
'].alternate = ' +
|
|
JSON.stringify(item.alternate) +
|
|
';\n';
|
|
}
|
|
});
|
|
}
|
|
intro += '}';
|
|
|
|
return intro;
|
|
},
|
|
_blockifyIf: function(node) {
|
|
if (linesToAddBrackets.indexOf(node.type) > -1) {
|
|
var bracketsExistObject = node.consequent || node.body;
|
|
var bracketsExistAlt = node.alternate;
|
|
if (bracketsExistAlt && bracketsExistAlt.type !== 'BlockStatement') {
|
|
bracketsExistAlt.update('{\n' + bracketsExistAlt.source() + '}\n');
|
|
}
|
|
if (
|
|
bracketsExistObject &&
|
|
bracketsExistObject.type !== 'BlockStatement'
|
|
) {
|
|
bracketsExistObject.update(
|
|
'{\n' + bracketsExistObject.source() + '}\n'
|
|
);
|
|
}
|
|
}
|
|
},
|
|
_trackBranch: function(node, filename) {
|
|
//recursive on consequent and alternative
|
|
var line = node.loc.start.line;
|
|
var col = node.loc.start.column;
|
|
|
|
_blanket._branchingArraySetup.push({
|
|
line: line,
|
|
column: col,
|
|
file: filename,
|
|
consequent: node.consequent.loc,
|
|
alternate: node.alternate.loc,
|
|
});
|
|
|
|
var updated =
|
|
'_$branchFcn' +
|
|
"('" +
|
|
filename +
|
|
"'," +
|
|
line +
|
|
',' +
|
|
col +
|
|
',' +
|
|
node.test.source() +
|
|
')?' +
|
|
node.consequent.source() +
|
|
':' +
|
|
node.alternate.source();
|
|
node.update(updated);
|
|
},
|
|
_addTracking: function(filename) {
|
|
//falafel doesn't take a file name
|
|
//so we include the filename in a closure
|
|
//and return the function to falafel
|
|
var covVar = _blanket.getCovVar();
|
|
|
|
return function(node) {
|
|
_blanket._blockifyIf(node);
|
|
|
|
if (
|
|
linesToAddTracking.indexOf(node.type) > -1 &&
|
|
node.parent.type !== 'LabeledStatement'
|
|
) {
|
|
_blanket._checkDefs(node, filename);
|
|
if (
|
|
node.type === 'VariableDeclaration' &&
|
|
(node.parent.type === 'ForStatement' ||
|
|
node.parent.type === 'ForInStatement')
|
|
) {
|
|
return;
|
|
}
|
|
if (node.loc && node.loc.start) {
|
|
node.update(
|
|
covVar +
|
|
"['" +
|
|
filename +
|
|
"'][" +
|
|
node.loc.start.line +
|
|
']++;\n' +
|
|
node.source()
|
|
);
|
|
_blanket._trackingArraySetup.push(node.loc.start.line);
|
|
} else {
|
|
//I don't think we can handle a node with no location
|
|
throw new Error(
|
|
'The instrumenter encountered a node with no location: ' +
|
|
Object.keys(node)
|
|
);
|
|
}
|
|
} else if (
|
|
_blanket.options('branchTracking') &&
|
|
node.type === 'ConditionalExpression'
|
|
) {
|
|
_blanket._trackBranch(node, filename);
|
|
}
|
|
};
|
|
},
|
|
_checkDefs: function(node, filename) {
|
|
// Make sure developers don't redefine window. if they do, inform them it is wrong.
|
|
if (inBrowser) {
|
|
if (node.type === 'VariableDeclaration' && node.declarations) {
|
|
node.declarations.forEach(function(declaration) {
|
|
if (declaration.id.name === 'window') {
|
|
throw new Error(
|
|
"Instrumentation error, you cannot redefine the 'window' variable in " +
|
|
filename +
|
|
':' +
|
|
node.loc.start.line
|
|
);
|
|
}
|
|
});
|
|
}
|
|
if (node.type === 'FunctionDeclaration' && node.params) {
|
|
node.params.forEach(function(param) {
|
|
if (param.name === 'window') {
|
|
throw new Error(
|
|
"Instrumentation error, you cannot redefine the 'window' variable in " +
|
|
filename +
|
|
':' +
|
|
node.loc.start.line
|
|
);
|
|
}
|
|
});
|
|
}
|
|
//Make sure developers don't redefine the coverage variable
|
|
if (
|
|
node.type === 'ExpressionStatement' &&
|
|
node.expression &&
|
|
node.expression.left &&
|
|
node.expression.left.object &&
|
|
node.expression.left.property &&
|
|
node.expression.left.object.name +
|
|
'.' +
|
|
node.expression.left.property.name ===
|
|
_blanket.getCovVar()
|
|
) {
|
|
throw new Error(
|
|
'Instrumentation error, you cannot redefine the coverage variable in ' +
|
|
filename +
|
|
':' +
|
|
node.loc.start.line
|
|
);
|
|
}
|
|
} else {
|
|
//Make sure developers don't redefine the coverage variable in node
|
|
if (
|
|
node.type === 'ExpressionStatement' &&
|
|
node.expression &&
|
|
node.expression.left &&
|
|
!node.expression.left.object &&
|
|
!node.expression.left.property &&
|
|
node.expression.left.name === _blanket.getCovVar()
|
|
) {
|
|
throw new Error(
|
|
'Instrumentation error, you cannot redefine the coverage variable in ' +
|
|
filename +
|
|
':' +
|
|
node.loc.start.line
|
|
);
|
|
}
|
|
}
|
|
},
|
|
setupCoverage: function() {
|
|
coverageInfo.instrumentation = 'blanket';
|
|
coverageInfo.stats = {
|
|
suites: 0,
|
|
tests: 0,
|
|
passes: 0,
|
|
pending: 0,
|
|
failures: 0,
|
|
start: new Date(),
|
|
};
|
|
},
|
|
_checkIfSetup: function() {
|
|
if (!coverageInfo.stats) {
|
|
throw new Error('You must call blanket.setupCoverage() first.');
|
|
}
|
|
},
|
|
onTestStart: function() {
|
|
if (_blanket.options('debug')) {
|
|
console.log('BLANKET-Test event started');
|
|
}
|
|
this._checkIfSetup();
|
|
coverageInfo.stats.tests++;
|
|
coverageInfo.stats.pending++;
|
|
},
|
|
onTestDone: function(total, passed) {
|
|
this._checkIfSetup();
|
|
if (passed === total) {
|
|
coverageInfo.stats.passes++;
|
|
} else {
|
|
coverageInfo.stats.failures++;
|
|
}
|
|
coverageInfo.stats.pending--;
|
|
},
|
|
onModuleStart: function() {
|
|
this._checkIfSetup();
|
|
coverageInfo.stats.suites++;
|
|
},
|
|
onTestsDone: function() {
|
|
if (_blanket.options('debug')) {
|
|
console.log('BLANKET-Test event done');
|
|
}
|
|
this._checkIfSetup();
|
|
coverageInfo.stats.end = new Date();
|
|
|
|
if (inBrowser) {
|
|
this.report(coverageInfo);
|
|
} else {
|
|
if (!_blanket.options('branchTracking')) {
|
|
delete (inBrowser ? window : global)[_blanket.getCovVar()].branchFcn;
|
|
}
|
|
this.options('reporter').call(this, coverageInfo);
|
|
}
|
|
},
|
|
};
|
|
return _blanket;
|
|
})();
|
|
|
|
(function(_blanket) {
|
|
var oldOptions = _blanket.options;
|
|
_blanket.extend({
|
|
outstandingRequireFiles: [],
|
|
options: function(key, value) {
|
|
var newVal = {};
|
|
|
|
if (typeof key !== 'string') {
|
|
//key is key/value map
|
|
oldOptions(key);
|
|
newVal = key;
|
|
} else if (typeof value === 'undefined') {
|
|
//accessor
|
|
return oldOptions(key);
|
|
} else {
|
|
//setter
|
|
oldOptions(key, value);
|
|
newVal[key] = value;
|
|
}
|
|
|
|
if (newVal.adapter) {
|
|
_blanket._loadFile(newVal.adapter);
|
|
}
|
|
if (newVal.loader) {
|
|
_blanket._loadFile(newVal.loader);
|
|
}
|
|
},
|
|
requiringFile: function(filename, done) {
|
|
if (typeof filename === 'undefined') {
|
|
_blanket.outstandingRequireFiles = [];
|
|
} else if (typeof done === 'undefined') {
|
|
_blanket.outstandingRequireFiles.push(filename);
|
|
} else {
|
|
_blanket.outstandingRequireFiles.splice(
|
|
_blanket.outstandingRequireFiles.indexOf(filename),
|
|
1
|
|
);
|
|
}
|
|
},
|
|
requireFilesLoaded: function() {
|
|
return _blanket.outstandingRequireFiles.length === 0;
|
|
},
|
|
showManualLoader: function() {
|
|
if (document.getElementById('blanketLoaderDialog')) {
|
|
return;
|
|
}
|
|
//copied from http://blog.avtex.com/2012/01/26/cross-browser-css-only-modal-box/
|
|
var loader = "<div class='blanketDialogOverlay'>";
|
|
loader += ' </div>';
|
|
loader += "<div class='blanketDialogVerticalOffset'>";
|
|
loader += "<div class='blanketDialogBox'>";
|
|
loader +=
|
|
'<b>Error:</b> Blanket.js encountered a cross origin request error while instrumenting the source files. ';
|
|
loader +=
|
|
'<br><br>This is likely caused by the source files being referenced locally (using the file:// protocol). ';
|
|
loader +=
|
|
"<br><br>Some solutions include <a href='http://askubuntu.com/questions/160245/making-google-chrome-option-allow-file-access-from-files-permanent' target='_blank'>starting Chrome with special flags</a>, <a target='_blank' href='https://github.com/remy/servedir'>running a server locally</a>, or using a browser without these CORS restrictions (Safari).";
|
|
loader += '<br>';
|
|
if (typeof FileReader !== 'undefined') {
|
|
loader +=
|
|
'<br>Or, try the experimental loader. When prompted, simply click on the directory containing all the source files you want covered.';
|
|
loader +=
|
|
'<a href=\'javascript:document.getElementById("fileInput").click();\'>Start Loader</a>';
|
|
loader +=
|
|
"<input type='file' type='application/x-javascript' accept='application/x-javascript' webkitdirectory id='fileInput' multiple onchange='window.blanket.manualFileLoader(this.files)' style='visibility:hidden;position:absolute;top:-50;left:-50'/>";
|
|
}
|
|
loader +=
|
|
"<br><span style='float:right;cursor:pointer;' onclick=document.getElementById('blanketLoaderDialog').style.display='none';>Close</span>";
|
|
loader += "<div style='clear:both'></div>";
|
|
loader += '</div></div>';
|
|
|
|
var css = '.blanketDialogWrapper {';
|
|
css += 'display:block;';
|
|
css += 'position:fixed;';
|
|
css += 'z-index:40001; }';
|
|
|
|
css += '.blanketDialogOverlay {';
|
|
css += 'position:fixed;';
|
|
css += 'width:100%;';
|
|
css += 'height:100%;';
|
|
css += 'background-color:black;';
|
|
css += 'opacity:.5; ';
|
|
css +=
|
|
"-ms-filter:'progid:DXImageTransform.Microsoft.Alpha(Opacity=50)'; ";
|
|
css += 'filter:alpha(opacity=50); ';
|
|
css += 'z-index:40001; }';
|
|
|
|
css += '.blanketDialogVerticalOffset { ';
|
|
css += 'position:fixed;';
|
|
css += 'top:30%;';
|
|
css += 'width:100%;';
|
|
css += 'z-index:40002; }';
|
|
|
|
css += '.blanketDialogBox { ';
|
|
css += 'width:405px; ';
|
|
css += 'position:relative;';
|
|
css += 'margin:0 auto;';
|
|
css += 'background-color:white;';
|
|
css += 'padding:10px;';
|
|
css += 'border:1px solid black; }';
|
|
|
|
var dom = document.createElement('style');
|
|
dom.innerHTML = css;
|
|
document.head.appendChild(dom);
|
|
|
|
var div = document.createElement('div');
|
|
div.id = 'blanketLoaderDialog';
|
|
div.className = 'blanketDialogWrapper';
|
|
div.innerHTML = loader;
|
|
document.body.insertBefore(div, document.body.firstChild);
|
|
},
|
|
manualFileLoader: function(files) {
|
|
var toArray = Array.prototype.slice;
|
|
files = toArray.call(files).filter(function(item) {
|
|
return item.type !== '';
|
|
});
|
|
var sessionLength = files.length - 1;
|
|
var sessionIndx = 0;
|
|
var sessionArray = {};
|
|
if (sessionStorage['blanketSessionLoader']) {
|
|
sessionArray = JSON.parse(sessionStorage['blanketSessionLoader']);
|
|
}
|
|
|
|
var fileLoader = function(event) {
|
|
var fileContent = event.currentTarget.result;
|
|
var file = files[sessionIndx];
|
|
var filename =
|
|
file.webkitRelativePath && file.webkitRelativePath !== ''
|
|
? file.webkitRelativePath
|
|
: file.name;
|
|
sessionArray[filename] = fileContent;
|
|
sessionIndx++;
|
|
if (sessionIndx === sessionLength) {
|
|
sessionStorage.setItem(
|
|
'blanketSessionLoader',
|
|
JSON.stringify(sessionArray)
|
|
);
|
|
document.location.reload();
|
|
} else {
|
|
readFile(files[sessionIndx]);
|
|
}
|
|
};
|
|
function readFile(file) {
|
|
var reader = new FileReader();
|
|
reader.onload = fileLoader;
|
|
reader.readAsText(file);
|
|
}
|
|
readFile(files[sessionIndx]);
|
|
},
|
|
_loadFile: function(path) {
|
|
if (typeof path !== 'undefined') {
|
|
var request = new XMLHttpRequest();
|
|
request.open('GET', path, false);
|
|
request.send();
|
|
_blanket._addScript(request.responseText);
|
|
}
|
|
},
|
|
_addScript: function(data) {
|
|
/*var script = document.createElement("script");
|
|
script.type = "text/javascript";
|
|
script.text = data;
|
|
(document.body || document.getElementsByTagName('head')[0]).appendChild(script);*/
|
|
(1, eval)(data);
|
|
},
|
|
hasAdapter: function(callback) {
|
|
return _blanket.options('adapter') !== null;
|
|
},
|
|
report: function(coverage_data) {
|
|
if (!document.getElementById('blanketLoaderDialog')) {
|
|
//all found, clear it
|
|
_blanket.blanketSession = null;
|
|
}
|
|
coverage_data.files = window._$blanket;
|
|
var require = blanket.options('commonJS')
|
|
? blanket._commonjs.require
|
|
: window.require;
|
|
|
|
// Check if we have any covered files that requires reporting
|
|
// otherwise just exit gracefully.
|
|
if (!coverage_data.files || !Object.keys(coverage_data.files).length) {
|
|
if (_blanket.options('debug')) {
|
|
console.log('BLANKET-Reporting No files were instrumented.');
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (typeof coverage_data.files.branchFcn !== 'undefined') {
|
|
delete coverage_data.files.branchFcn;
|
|
}
|
|
if (typeof _blanket.options('reporter') === 'string') {
|
|
_blanket._loadFile(_blanket.options('reporter'));
|
|
_blanket.customReporter(
|
|
coverage_data,
|
|
_blanket.options('reporter_options')
|
|
);
|
|
} else if (typeof _blanket.options('reporter') === 'function') {
|
|
_blanket.options('reporter')(
|
|
coverage_data,
|
|
_blanket.options('reporter_options')
|
|
);
|
|
} else if (typeof _blanket.defaultReporter === 'function') {
|
|
_blanket.defaultReporter(
|
|
coverage_data,
|
|
_blanket.options('reporter_options')
|
|
);
|
|
} else {
|
|
throw new Error('no reporter defined.');
|
|
}
|
|
},
|
|
_bindStartTestRunner: function(bindEvent, startEvent) {
|
|
if (bindEvent) {
|
|
bindEvent(startEvent);
|
|
} else {
|
|
window.addEventListener('load', startEvent, false);
|
|
}
|
|
},
|
|
_loadSourceFiles: function(callback) {
|
|
var require = blanket.options('commonJS')
|
|
? blanket._commonjs.require
|
|
: window.require;
|
|
function copy(o) {
|
|
var _copy = Object.create(Object.getPrototypeOf(o));
|
|
var propNames = Object.getOwnPropertyNames(o);
|
|
|
|
propNames.forEach(function(name) {
|
|
var desc = Object.getOwnPropertyDescriptor(o, name);
|
|
Object.defineProperty(_copy, name, desc);
|
|
});
|
|
|
|
return _copy;
|
|
}
|
|
if (_blanket.options('debug')) {
|
|
console.log('BLANKET-Collecting page scripts');
|
|
}
|
|
var scripts = _blanket.utils.collectPageScripts();
|
|
//_blanket.options("filter",scripts);
|
|
if (scripts.length === 0) {
|
|
callback();
|
|
} else {
|
|
//check session state
|
|
if (sessionStorage['blanketSessionLoader']) {
|
|
_blanket.blanketSession = JSON.parse(
|
|
sessionStorage['blanketSessionLoader']
|
|
);
|
|
}
|
|
|
|
scripts.forEach(function(file, indx) {
|
|
_blanket.utils.cache[file] = {
|
|
loaded: false,
|
|
};
|
|
});
|
|
|
|
var currScript = -1;
|
|
_blanket.utils.loadAll(function(test) {
|
|
if (test) {
|
|
return typeof scripts[currScript + 1] !== 'undefined';
|
|
}
|
|
currScript++;
|
|
if (currScript >= scripts.length) {
|
|
return null;
|
|
}
|
|
return scripts[currScript];
|
|
}, callback);
|
|
}
|
|
},
|
|
beforeStartTestRunner: function(opts) {
|
|
opts = opts || {};
|
|
opts.checkRequirejs =
|
|
typeof opts.checkRequirejs === 'undefined' ? true : opts.checkRequirejs;
|
|
opts.callback = opts.callback || function() {};
|
|
opts.coverage =
|
|
typeof opts.coverage === 'undefined' ? true : opts.coverage;
|
|
if (opts.coverage) {
|
|
_blanket._bindStartTestRunner(opts.bindEvent, function() {
|
|
_blanket._loadSourceFiles(function() {
|
|
var allLoaded = function() {
|
|
return opts.condition
|
|
? opts.condition()
|
|
: _blanket.requireFilesLoaded();
|
|
};
|
|
var check = function() {
|
|
if (allLoaded()) {
|
|
if (_blanket.options('debug')) {
|
|
console.log(
|
|
'BLANKET-All files loaded, init start test runner callback.'
|
|
);
|
|
}
|
|
var cb = _blanket.options('testReadyCallback');
|
|
|
|
if (cb) {
|
|
if (typeof cb === 'function') {
|
|
cb(opts.callback);
|
|
} else if (typeof cb === 'string') {
|
|
_blanket._addScript(cb);
|
|
opts.callback();
|
|
}
|
|
} else {
|
|
opts.callback();
|
|
}
|
|
} else {
|
|
setTimeout(check, 13);
|
|
}
|
|
};
|
|
check();
|
|
});
|
|
});
|
|
} else {
|
|
opts.callback();
|
|
}
|
|
},
|
|
utils: {
|
|
qualifyURL: function(url) {
|
|
//http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue
|
|
var a = document.createElement('a');
|
|
a.href = url;
|
|
return a.href;
|
|
},
|
|
},
|
|
});
|
|
})(blanket);
|
|
|
|
blanket.defaultReporter = function(coverage) {
|
|
var cssSytle =
|
|
"#blanket-main {margin:2px;background:#EEE;color:#333;clear:both;font-family:'Helvetica Neue Light', 'HelveticaNeue-Light', 'Helvetica Neue', Calibri, Helvetica, Arial, sans-serif; font-size:17px;} #blanket-main a {color:#333;text-decoration:none;} #blanket-main a:hover {text-decoration:underline;} .blanket {margin:0;padding:5px;clear:both;border-bottom: 1px solid #FFFFFF;} .bl-error {color:red;}.bl-success {color:#5E7D00;} .bl-file{width:auto;} .bl-cl{float:left;} .blanket div.rs {margin-inline-start:50px; width:150px; float:right} .bl-nb {padding-inline-end:10px;} #blanket-main a.bl-logo {color: #EB1764;cursor: pointer;font-weight: bold;text-decoration: none} .bl-source{ overflow-x:scroll; background-color: #FFFFFF; border: 1px solid #CBCBCB; color: #363636; margin: 25px 20px; width: 80%;} .bl-source div{white-space: pre;font-family: monospace;} .bl-source > div > span:first-child{background-color: #EAEAEA;color: #949494;display: inline-block;padding: 0 10px;text-align: center;width: 30px;} .bl-source .miss{background-color:#e6c3c7} .bl-source span.branchWarning{color:#000;background-color:yellow;} .bl-source span.branchOkay{color:#000;background-color:transparent;}",
|
|
successRate = 60,
|
|
head = document.head,
|
|
fileNumber = 0,
|
|
body = document.body,
|
|
headerContent,
|
|
hasBranchTracking = Object.keys(coverage.files).some(function(elem) {
|
|
return typeof coverage.files[elem].branchData !== 'undefined';
|
|
}),
|
|
bodyContent =
|
|
"<div id='blanket-main'><div class='blanket bl-title'><div class='bl-cl bl-file'><a href='http://alex-seville.github.com/blanket/' target='_blank' class='bl-logo'>Blanket.js</a> results</div><div class='bl-cl rs'>Coverage (%)</div><div class='bl-cl rs'>Covered/Total Smts.</div>" +
|
|
(hasBranchTracking
|
|
? "<div class='bl-cl rs'>Covered/Total Branches</div>"
|
|
: '') +
|
|
"<div style='clear:both;'></div></div>",
|
|
fileTemplate =
|
|
"<div class='blanket {{statusclass}}'><div class='bl-cl bl-file'><span class='bl-nb'>{{fileNumber}}.</span><a id='blanket-link-file-{{fileNumber}}' href='javascript:void(0)'>{{file}}</a></div><div class='bl-cl rs'>{{percentage}} %</div><div class='bl-cl rs'>{{numberCovered}}/{{totalSmts}}</div>" +
|
|
(hasBranchTracking
|
|
? "<div class='bl-cl rs'>{{passedBranches}}/{{totalBranches}}</div>"
|
|
: '') +
|
|
"<div id='file-{{fileNumber}}' class='bl-source' style='display:none;'>{{source}}</div><div style='clear:both;'></div></div>";
|
|
grandTotalTemplate =
|
|
"<div class='blanket grand-total {{statusclass}}'><div class='bl-cl'>{{rowTitle}}</div><div class='bl-cl rs'>{{percentage}} %</div><div class='bl-cl rs'>{{numberCovered}}/{{totalSmts}}</div>" +
|
|
(hasBranchTracking
|
|
? "<div class='bl-cl rs'>{{passedBranches}}/{{totalBranches}}</div>"
|
|
: '') +
|
|
"<div style='clear:both;'></div></div>";
|
|
|
|
function blanket_toggleSource(id) {
|
|
var element = document.getElementById(id);
|
|
if (element.style.display === 'block') {
|
|
element.style.display = 'none';
|
|
} else {
|
|
element.style.display = 'block';
|
|
}
|
|
}
|
|
|
|
/*var script = document.createElement("script");
|
|
script.type = "text/javascript";
|
|
script.text = blanket_toggleSource.toString().replace('function ' + blanket_toggleSource.name, 'function blanket_toggleSource');
|
|
body.appendChild(script);*/
|
|
(1, eval)(
|
|
blanket_toggleSource
|
|
.toString()
|
|
.replace(
|
|
'function ' + blanket_toggleSource.name,
|
|
'function blanket_toggleSource'
|
|
)
|
|
);
|
|
|
|
var percentage = function(number, total) {
|
|
return Math.round(number / total * 100 * 100) / 100;
|
|
};
|
|
|
|
var appendTag = function(type, el, str) {
|
|
var dom = document.createElement(type);
|
|
dom.innerHTML = str;
|
|
el.appendChild(dom);
|
|
};
|
|
|
|
function escapeInvalidXmlChars(str) {
|
|
return str
|
|
.replace(/\&/g, '&')
|
|
.replace(/</g, '<')
|
|
.replace(/\>/g, '>')
|
|
.replace(/\"/g, '"')
|
|
.replace(/\'/g, ''');
|
|
}
|
|
|
|
function isBranchFollowed(data, bool) {
|
|
var mode = bool ? 0 : 1;
|
|
if (
|
|
typeof data === 'undefined' ||
|
|
typeof data === null ||
|
|
typeof data[mode] === 'undefined'
|
|
) {
|
|
return false;
|
|
}
|
|
return data[mode].length > 0;
|
|
}
|
|
|
|
var branchStack = [];
|
|
|
|
function branchReport(colsIndex, src, cols, offset, lineNum) {
|
|
var newsrc = '';
|
|
var postfix = '';
|
|
if (branchStack.length > 0) {
|
|
newsrc +=
|
|
"<span class='" +
|
|
(isBranchFollowed(
|
|
branchStack[0][1],
|
|
branchStack[0][1].consequent === branchStack[0][0]
|
|
)
|
|
? 'branchOkay'
|
|
: 'branchWarning') +
|
|
"'>";
|
|
if (branchStack[0][0].end.line === lineNum) {
|
|
newsrc +=
|
|
escapeInvalidXmlChars(src.slice(0, branchStack[0][0].end.column)) +
|
|
'</span>';
|
|
src = src.slice(branchStack[0][0].end.column);
|
|
branchStack.shift();
|
|
if (branchStack.length > 0) {
|
|
newsrc +=
|
|
"<span class='" +
|
|
(isBranchFollowed(branchStack[0][1], false)
|
|
? 'branchOkay'
|
|
: 'branchWarning') +
|
|
"'>";
|
|
if (branchStack[0][0].end.line === lineNum) {
|
|
newsrc +=
|
|
escapeInvalidXmlChars(
|
|
src.slice(0, branchStack[0][0].end.column)
|
|
) + '</span>';
|
|
src = src.slice(branchStack[0][0].end.column);
|
|
branchStack.shift();
|
|
if (!cols) {
|
|
return { src: newsrc + escapeInvalidXmlChars(src), cols: cols };
|
|
}
|
|
} else if (!cols) {
|
|
return {
|
|
src: newsrc + escapeInvalidXmlChars(src) + '</span>',
|
|
cols: cols,
|
|
};
|
|
} else {
|
|
postfix = '</span>';
|
|
}
|
|
} else if (!cols) {
|
|
return { src: newsrc + escapeInvalidXmlChars(src), cols: cols };
|
|
}
|
|
} else if (!cols) {
|
|
return {
|
|
src: newsrc + escapeInvalidXmlChars(src) + '</span>',
|
|
cols: cols,
|
|
};
|
|
} else {
|
|
postfix = '</span>';
|
|
}
|
|
}
|
|
var thisline = cols[colsIndex];
|
|
//consequent
|
|
|
|
var cons = thisline.consequent;
|
|
if (cons.start.line > lineNum) {
|
|
branchStack.unshift([thisline.alternate, thisline]);
|
|
branchStack.unshift([cons, thisline]);
|
|
src = escapeInvalidXmlChars(src);
|
|
} else {
|
|
var style =
|
|
"<span class='" +
|
|
(isBranchFollowed(thisline, true) ? 'branchOkay' : 'branchWarning') +
|
|
"'>";
|
|
newsrc +=
|
|
escapeInvalidXmlChars(src.slice(0, cons.start.column - offset)) + style;
|
|
|
|
if (
|
|
cols.length > colsIndex + 1 &&
|
|
cols[colsIndex + 1].consequent.start.line === lineNum &&
|
|
cols[colsIndex + 1].consequent.start.column - offset <
|
|
cols[colsIndex].consequent.end.column - offset
|
|
) {
|
|
var res = branchReport(
|
|
colsIndex + 1,
|
|
src.slice(cons.start.column - offset, cons.end.column - offset),
|
|
cols,
|
|
cons.start.column - offset,
|
|
lineNum
|
|
);
|
|
newsrc += res.src;
|
|
cols = res.cols;
|
|
cols[colsIndex + 1] = cols[colsIndex + 2];
|
|
cols.length--;
|
|
} else {
|
|
newsrc += escapeInvalidXmlChars(
|
|
src.slice(cons.start.column - offset, cons.end.column - offset)
|
|
);
|
|
}
|
|
newsrc += '</span>';
|
|
|
|
var alt = thisline.alternate;
|
|
if (alt.start.line > lineNum) {
|
|
newsrc += escapeInvalidXmlChars(src.slice(cons.end.column - offset));
|
|
branchStack.unshift([alt, thisline]);
|
|
} else {
|
|
newsrc += escapeInvalidXmlChars(
|
|
src.slice(cons.end.column - offset, alt.start.column - offset)
|
|
);
|
|
style =
|
|
"<span class='" +
|
|
(isBranchFollowed(thisline, false) ? 'branchOkay' : 'branchWarning') +
|
|
"'>";
|
|
newsrc += style;
|
|
if (
|
|
cols.length > colsIndex + 1 &&
|
|
cols[colsIndex + 1].consequent.start.line === lineNum &&
|
|
cols[colsIndex + 1].consequent.start.column - offset <
|
|
cols[colsIndex].alternate.end.column - offset
|
|
) {
|
|
var res2 = branchReport(
|
|
colsIndex + 1,
|
|
src.slice(alt.start.column - offset, alt.end.column - offset),
|
|
cols,
|
|
alt.start.column - offset,
|
|
lineNum
|
|
);
|
|
newsrc += res2.src;
|
|
cols = res2.cols;
|
|
cols[colsIndex + 1] = cols[colsIndex + 2];
|
|
cols.length--;
|
|
} else {
|
|
newsrc += escapeInvalidXmlChars(
|
|
src.slice(alt.start.column - offset, alt.end.column - offset)
|
|
);
|
|
}
|
|
newsrc += '</span>';
|
|
newsrc += escapeInvalidXmlChars(src.slice(alt.end.column - offset));
|
|
src = newsrc;
|
|
}
|
|
}
|
|
return { src: src + postfix, cols: cols };
|
|
}
|
|
|
|
var isUndefined = function(item) {
|
|
return typeof item !== 'undefined';
|
|
};
|
|
|
|
var files = coverage.files;
|
|
var totals = {
|
|
totalSmts: 0,
|
|
numberOfFilesCovered: 0,
|
|
passedBranches: 0,
|
|
totalBranches: 0,
|
|
moduleTotalStatements: {},
|
|
moduleTotalCoveredStatements: {},
|
|
moduleTotalBranches: {},
|
|
moduleTotalCoveredBranches: {},
|
|
};
|
|
|
|
// check if a data-cover-modulepattern was provided for per-module coverage reporting
|
|
var modulePattern = _blanket.options('modulePattern');
|
|
var modulePatternRegex = modulePattern ? new RegExp(modulePattern) : null;
|
|
|
|
for (var file in files) {
|
|
if (!files.hasOwnProperty(file)) {
|
|
continue;
|
|
}
|
|
|
|
fileNumber++;
|
|
|
|
var statsForFile = files[file],
|
|
totalSmts = 0,
|
|
numberOfFilesCovered = 0,
|
|
code = [],
|
|
i;
|
|
|
|
var end = [];
|
|
for (i = 0; i < statsForFile.source.length; i += 1) {
|
|
var src = statsForFile.source[i];
|
|
|
|
if (
|
|
branchStack.length > 0 ||
|
|
typeof statsForFile.branchData !== 'undefined'
|
|
) {
|
|
if (typeof statsForFile.branchData[i + 1] !== 'undefined') {
|
|
var cols = statsForFile.branchData[i + 1].filter(isUndefined);
|
|
var colsIndex = 0;
|
|
|
|
src = branchReport(colsIndex, src, cols, 0, i + 1).src;
|
|
} else if (branchStack.length) {
|
|
src = branchReport(0, src, null, 0, i + 1).src;
|
|
} else {
|
|
src = escapeInvalidXmlChars(src);
|
|
}
|
|
} else {
|
|
src = escapeInvalidXmlChars(src);
|
|
}
|
|
var lineClass = '';
|
|
if (statsForFile[i + 1]) {
|
|
numberOfFilesCovered += 1;
|
|
totalSmts += 1;
|
|
lineClass = 'hit';
|
|
} else {
|
|
if (statsForFile[i + 1] === 0) {
|
|
totalSmts++;
|
|
lineClass = 'miss';
|
|
}
|
|
}
|
|
code[i + 1] =
|
|
"<div class='" +
|
|
lineClass +
|
|
"'><span class=''>" +
|
|
(i + 1) +
|
|
'</span>' +
|
|
src +
|
|
'</div>';
|
|
}
|
|
totals.totalSmts += totalSmts;
|
|
totals.numberOfFilesCovered += numberOfFilesCovered;
|
|
var totalBranches = 0;
|
|
var passedBranches = 0;
|
|
if (typeof statsForFile.branchData !== 'undefined') {
|
|
for (var j = 0; j < statsForFile.branchData.length; j++) {
|
|
if (typeof statsForFile.branchData[j] !== 'undefined') {
|
|
for (var k = 0; k < statsForFile.branchData[j].length; k++) {
|
|
if (typeof statsForFile.branchData[j][k] !== 'undefined') {
|
|
totalBranches++;
|
|
if (
|
|
typeof statsForFile.branchData[j][k][0] !== 'undefined' &&
|
|
statsForFile.branchData[j][k][0].length > 0 &&
|
|
typeof statsForFile.branchData[j][k][1] !== 'undefined' &&
|
|
statsForFile.branchData[j][k][1].length > 0
|
|
) {
|
|
passedBranches++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
totals.passedBranches += passedBranches;
|
|
totals.totalBranches += totalBranches;
|
|
|
|
// if "data-cover-modulepattern" was provided,
|
|
// track totals per module name as well as globally
|
|
if (modulePatternRegex) {
|
|
var moduleName = file.match(modulePatternRegex)[1];
|
|
|
|
if (!totals.moduleTotalStatements.hasOwnProperty(moduleName)) {
|
|
totals.moduleTotalStatements[moduleName] = 0;
|
|
totals.moduleTotalCoveredStatements[moduleName] = 0;
|
|
}
|
|
|
|
totals.moduleTotalStatements[moduleName] += totalSmts;
|
|
totals.moduleTotalCoveredStatements[moduleName] += numberOfFilesCovered;
|
|
|
|
if (!totals.moduleTotalBranches.hasOwnProperty(moduleName)) {
|
|
totals.moduleTotalBranches[moduleName] = 0;
|
|
totals.moduleTotalCoveredBranches[moduleName] = 0;
|
|
}
|
|
|
|
totals.moduleTotalBranches[moduleName] += totalBranches;
|
|
totals.moduleTotalCoveredBranches[moduleName] += passedBranches;
|
|
}
|
|
|
|
var result = percentage(numberOfFilesCovered, totalSmts);
|
|
|
|
var output = fileTemplate
|
|
.replace('{{file}}', file)
|
|
.replace('{{percentage}}', result)
|
|
.replace('{{numberCovered}}', numberOfFilesCovered)
|
|
.replace(/\{\{fileNumber\}\}/g, fileNumber)
|
|
.replace('{{totalSmts}}', totalSmts)
|
|
.replace('{{totalBranches}}', totalBranches)
|
|
.replace('{{passedBranches}}', passedBranches)
|
|
.replace('{{source}}', code.join(' '));
|
|
if (result < successRate) {
|
|
output = output.replace('{{statusclass}}', 'bl-error');
|
|
} else {
|
|
output = output.replace('{{statusclass}}', 'bl-success');
|
|
}
|
|
bodyContent += output;
|
|
}
|
|
|
|
// create temporary function for use by the global totals reporter,
|
|
// as well as the per-module totals reporter
|
|
var createAggregateTotal = function(
|
|
numSt,
|
|
numCov,
|
|
numBranch,
|
|
numCovBr,
|
|
moduleName
|
|
) {
|
|
var totalPercent = percentage(numCov, numSt);
|
|
var statusClass = totalPercent < successRate ? 'bl-error' : 'bl-success';
|
|
var rowTitle = moduleName
|
|
? 'Total for module: ' + moduleName
|
|
: 'Global total';
|
|
var totalsOutput = grandTotalTemplate
|
|
.replace('{{rowTitle}}', rowTitle)
|
|
.replace('{{percentage}}', totalPercent)
|
|
.replace('{{numberCovered}}', numCov)
|
|
.replace('{{totalSmts}}', numSt)
|
|
.replace('{{passedBranches}}', numCovBr)
|
|
.replace('{{totalBranches}}', numBranch)
|
|
.replace('{{statusclass}}', statusClass);
|
|
|
|
bodyContent += totalsOutput;
|
|
};
|
|
|
|
// if "data-cover-modulepattern" was provided,
|
|
// output the per-module totals alongside the global totals
|
|
if (modulePatternRegex) {
|
|
for (var thisModuleName in totals.moduleTotalStatements) {
|
|
if (totals.moduleTotalStatements.hasOwnProperty(thisModuleName)) {
|
|
var moduleTotalSt = totals.moduleTotalStatements[thisModuleName];
|
|
var moduleTotalCovSt =
|
|
totals.moduleTotalCoveredStatements[thisModuleName];
|
|
|
|
var moduleTotalBr = totals.moduleTotalBranches[thisModuleName];
|
|
var moduleTotalCovBr =
|
|
totals.moduleTotalCoveredBranches[thisModuleName];
|
|
|
|
createAggregateTotal(
|
|
moduleTotalSt,
|
|
moduleTotalCovSt,
|
|
moduleTotalBr,
|
|
moduleTotalCovBr,
|
|
thisModuleName
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
createAggregateTotal(
|
|
totals.totalSmts,
|
|
totals.numberOfFilesCovered,
|
|
totals.totalBranches,
|
|
totals.passedBranches,
|
|
null
|
|
);
|
|
bodyContent += '</div>'; //closing main
|
|
|
|
appendTag('style', head, cssSytle);
|
|
//appendStyle(body, headerContent);
|
|
if (document.getElementById('blanket-main')) {
|
|
document.getElementById('blanket-main').innerHTML = bodyContent.slice(
|
|
23,
|
|
-6
|
|
);
|
|
} else {
|
|
appendTag('div', body, bodyContent);
|
|
}
|
|
|
|
fileNumber = 0;
|
|
for (var file in files) {
|
|
if (!files.hasOwnProperty(file)) {
|
|
continue;
|
|
}
|
|
|
|
fileNumber++;
|
|
var _ = (function() {
|
|
var localFN = fileNumber;
|
|
$('#blanket-link-file-' + fileNumber).click(function() {
|
|
blanket_toggleSource('file-' + localFN);
|
|
});
|
|
})();
|
|
}
|
|
|
|
//appendHtml(body, '</div>');
|
|
};
|
|
|
|
(function() {
|
|
var newOptions = {};
|
|
//http://stackoverflow.com/a/2954896
|
|
var toArray = Array.prototype.slice;
|
|
var scripts = toArray.call(document.scripts);
|
|
toArray.call(scripts[scripts.length - 1].attributes).forEach(function(es) {
|
|
if (es.nodeName === 'data-cover-only') {
|
|
newOptions.filter = es.nodeValue;
|
|
}
|
|
if (es.nodeName === 'data-cover-never') {
|
|
newOptions.antifilter = es.nodeValue;
|
|
}
|
|
if (es.nodeName === 'data-cover-reporter') {
|
|
newOptions.reporter = es.nodeValue;
|
|
}
|
|
if (es.nodeName === 'data-cover-adapter') {
|
|
newOptions.adapter = es.nodeValue;
|
|
}
|
|
if (es.nodeName === 'data-cover-loader') {
|
|
newOptions.loader = es.nodeValue;
|
|
}
|
|
if (es.nodeName === 'data-cover-timeout') {
|
|
newOptions.timeout = es.nodeValue;
|
|
}
|
|
if (es.nodeName === 'data-cover-modulepattern') {
|
|
newOptions.modulePattern = es.nodeValue;
|
|
}
|
|
if (es.nodeName === 'data-cover-reporter-options') {
|
|
try {
|
|
newOptions.reporter_options = JSON.parse(es.nodeValue);
|
|
} catch (e) {
|
|
if (blanket.options('debug')) {
|
|
throw new Error(
|
|
'Invalid reporter options. Must be a valid stringified JSON object.'
|
|
);
|
|
}
|
|
}
|
|
}
|
|
if (es.nodeName === 'data-cover-testReadyCallback') {
|
|
newOptions.testReadyCallback = es.nodeValue;
|
|
}
|
|
if (es.nodeName === 'data-cover-customVariable') {
|
|
newOptions.customVariable = es.nodeValue;
|
|
}
|
|
if (es.nodeName === 'data-cover-flags') {
|
|
var flags = ' ' + es.nodeValue + ' ';
|
|
if (flags.indexOf(' ignoreError ') > -1) {
|
|
newOptions.ignoreScriptError = true;
|
|
}
|
|
if (flags.indexOf(' autoStart ') > -1) {
|
|
newOptions.autoStart = true;
|
|
}
|
|
if (flags.indexOf(' ignoreCors ') > -1) {
|
|
newOptions.ignoreCors = true;
|
|
}
|
|
if (flags.indexOf(' branchTracking ') > -1) {
|
|
newOptions.branchTracking = true;
|
|
}
|
|
if (flags.indexOf(' sourceURL ') > -1) {
|
|
newOptions.sourceURL = true;
|
|
}
|
|
if (flags.indexOf(' debug ') > -1) {
|
|
newOptions.debug = true;
|
|
}
|
|
if (flags.indexOf(' engineOnly ') > -1) {
|
|
newOptions.engineOnly = true;
|
|
}
|
|
if (flags.indexOf(' commonJS ') > -1) {
|
|
newOptions.commonJS = true;
|
|
}
|
|
if (flags.indexOf(' instrumentCache ') > -1) {
|
|
newOptions.instrumentCache = true;
|
|
}
|
|
}
|
|
});
|
|
blanket.options(newOptions);
|
|
|
|
if (typeof requirejs !== 'undefined') {
|
|
blanket.options('existingRequireJS', true);
|
|
}
|
|
/* setup requirejs loader, if needed */
|
|
|
|
if (blanket.options('commonJS')) {
|
|
blanket._commonjs = {};
|
|
}
|
|
})();
|
|
(function(_blanket) {
|
|
_blanket.extend({
|
|
utils: {
|
|
normalizeBackslashes: function(str) {
|
|
return str.replace(/\\/g, '/');
|
|
},
|
|
matchPatternAttribute: function(filename, pattern) {
|
|
if (typeof pattern === 'string') {
|
|
if (pattern.indexOf('[') === 0) {
|
|
//treat as array
|
|
var pattenArr = pattern.slice(1, pattern.length - 1).split(',');
|
|
return pattenArr.some(function(elem) {
|
|
return _blanket.utils.matchPatternAttribute(
|
|
filename,
|
|
_blanket.utils.normalizeBackslashes(elem.slice(1, -1))
|
|
);
|
|
//return filename.indexOf(_blanket.utils.normalizeBackslashes(elem.slice(1,-1))) > -1;
|
|
});
|
|
} else if (pattern.indexOf('//') === 0) {
|
|
var ex = pattern.slice(2, pattern.lastIndexOf('/'));
|
|
var mods = pattern.slice(pattern.lastIndexOf('/') + 1);
|
|
var regex = new RegExp(ex, mods);
|
|
return regex.test(filename);
|
|
} else if (pattern.indexOf('#') === 0) {
|
|
return window[pattern.slice(1)].call(window, filename);
|
|
} else {
|
|
return (
|
|
filename.indexOf(_blanket.utils.normalizeBackslashes(pattern)) >
|
|
-1
|
|
);
|
|
}
|
|
} else if (pattern instanceof Array) {
|
|
return pattern.some(function(elem) {
|
|
return _blanket.utils.matchPatternAttribute(filename, elem);
|
|
});
|
|
} else if (pattern instanceof RegExp) {
|
|
return pattern.test(filename);
|
|
} else if (typeof pattern === 'function') {
|
|
return pattern.call(window, filename);
|
|
}
|
|
},
|
|
blanketEval: function(data) {
|
|
_blanket._addScript(data);
|
|
},
|
|
collectPageScripts: function() {
|
|
var toArray = Array.prototype.slice;
|
|
var scripts = toArray.call(document.scripts);
|
|
var selectedScripts = [],
|
|
scriptNames = [];
|
|
var filter = _blanket.options('filter');
|
|
if (filter != null) {
|
|
//global filter in place, data-cover-only
|
|
var antimatch = _blanket.options('antifilter');
|
|
selectedScripts = toArray.call(document.scripts).filter(function(s) {
|
|
return (
|
|
toArray.call(s.attributes).filter(function(sn) {
|
|
return (
|
|
sn.nodeName === 'src' &&
|
|
_blanket.utils.matchPatternAttribute(sn.nodeValue, filter) &&
|
|
(typeof antimatch === 'undefined' ||
|
|
!_blanket.utils.matchPatternAttribute(
|
|
sn.nodeValue,
|
|
antimatch
|
|
))
|
|
);
|
|
}).length === 1
|
|
);
|
|
});
|
|
} else {
|
|
selectedScripts = toArray.call(
|
|
document.querySelectorAll('script[data-cover]')
|
|
);
|
|
}
|
|
scriptNames = selectedScripts.map(function(s) {
|
|
return _blanket.utils.qualifyURL(
|
|
toArray.call(s.attributes).filter(function(sn) {
|
|
return sn.nodeName === 'src';
|
|
})[0].nodeValue
|
|
);
|
|
});
|
|
if (!filter) {
|
|
_blanket.options('filter', "['" + scriptNames.join("','") + "']");
|
|
}
|
|
return scriptNames;
|
|
},
|
|
loadAll: function(nextScript, cb, preprocessor) {
|
|
/**
|
|
* load dependencies
|
|
* @param {nextScript} factory for priority level
|
|
* @param {cb} the done callback
|
|
*/
|
|
var currScript = nextScript();
|
|
var isLoaded = _blanket.utils.scriptIsLoaded(
|
|
currScript,
|
|
_blanket.utils.ifOrdered,
|
|
nextScript,
|
|
cb
|
|
);
|
|
|
|
if (
|
|
!(
|
|
_blanket.utils.cache[currScript] &&
|
|
_blanket.utils.cache[currScript].loaded
|
|
)
|
|
) {
|
|
var attach = function() {
|
|
if (_blanket.options('debug')) {
|
|
console.log(
|
|
'BLANKET-Mark script:' +
|
|
currScript +
|
|
', as loaded and move to next script.'
|
|
);
|
|
}
|
|
isLoaded();
|
|
};
|
|
var whenDone = function(result) {
|
|
if (_blanket.options('debug')) {
|
|
console.log('BLANKET-File loading finished');
|
|
}
|
|
if (typeof result !== 'undefined') {
|
|
if (_blanket.options('debug')) {
|
|
console.log('BLANKET-Add file to DOM.');
|
|
}
|
|
_blanket._addScript(result);
|
|
}
|
|
attach();
|
|
};
|
|
|
|
_blanket.utils.attachScript(
|
|
{
|
|
url: currScript,
|
|
},
|
|
function(content) {
|
|
_blanket.utils.processFile(
|
|
content,
|
|
currScript,
|
|
whenDone,
|
|
whenDone
|
|
);
|
|
}
|
|
);
|
|
} else {
|
|
isLoaded();
|
|
}
|
|
},
|
|
attachScript: function(options, cb) {
|
|
var timeout = _blanket.options('timeout') || 3000;
|
|
setTimeout(function() {
|
|
if (!_blanket.utils.cache[options.url].loaded) {
|
|
throw new Error('error loading source script');
|
|
}
|
|
}, timeout);
|
|
_blanket.utils.getFile(options.url, cb, function() {
|
|
throw new Error('error loading source script');
|
|
});
|
|
},
|
|
ifOrdered: function(nextScript, cb) {
|
|
/**
|
|
* ordered loading callback
|
|
* @param {nextScript} factory for priority level
|
|
* @param {cb} the done callback
|
|
*/
|
|
var currScript = nextScript(true);
|
|
if (currScript) {
|
|
_blanket.utils.loadAll(nextScript, cb);
|
|
} else {
|
|
cb(new Error('Error in loading chain.'));
|
|
}
|
|
},
|
|
scriptIsLoaded: function(url, orderedCb, nextScript, cb) {
|
|
/**
|
|
* returns a callback that checks a loading list to see if a script is loaded.
|
|
* @param {orderedCb} callback if ordered loading is being done
|
|
* @param {nextScript} factory for next priority level
|
|
* @param {cb} the done callback
|
|
*/
|
|
if (_blanket.options('debug')) {
|
|
console.log('BLANKET-Returning function');
|
|
}
|
|
return function() {
|
|
if (_blanket.options('debug')) {
|
|
console.log('BLANKET-Marking file as loaded: ' + url);
|
|
}
|
|
|
|
_blanket.utils.cache[url].loaded = true;
|
|
|
|
if (_blanket.utils.allLoaded()) {
|
|
if (_blanket.options('debug')) {
|
|
console.log('BLANKET-All files loaded');
|
|
}
|
|
cb();
|
|
} else if (orderedCb) {
|
|
//if it's ordered we need to
|
|
//traverse down to the next
|
|
//priority level
|
|
if (_blanket.options('debug')) {
|
|
console.log('BLANKET-Load next file.');
|
|
}
|
|
orderedCb(nextScript, cb);
|
|
}
|
|
};
|
|
},
|
|
cache: {},
|
|
allLoaded: function() {
|
|
/**
|
|
* check if depdencies are loaded in cache
|
|
*/
|
|
var cached = Object.keys(_blanket.utils.cache);
|
|
for (var i = 0; i < cached.length; i++) {
|
|
if (!_blanket.utils.cache[cached[i]].loaded) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
},
|
|
processFile: function(content, url, cb, oldCb) {
|
|
var match = _blanket.options('filter');
|
|
//we check the never matches first
|
|
var antimatch = _blanket.options('antifilter');
|
|
if (
|
|
typeof antimatch !== 'undefined' &&
|
|
_blanket.utils.matchPatternAttribute(url, antimatch)
|
|
) {
|
|
oldCb(content);
|
|
if (_blanket.options('debug')) {
|
|
console.log('BLANKET-File will never be instrumented:' + url);
|
|
}
|
|
_blanket.requiringFile(url, true);
|
|
} else if (_blanket.utils.matchPatternAttribute(url, match)) {
|
|
if (_blanket.options('debug')) {
|
|
console.log('BLANKET-Attempting instrument of:' + url);
|
|
}
|
|
_blanket.instrument(
|
|
{
|
|
inputFile: content,
|
|
inputFileName: url,
|
|
},
|
|
function(instrumented) {
|
|
try {
|
|
if (_blanket.options('debug')) {
|
|
console.log(
|
|
'BLANKET-instrument of:' + url + ' was successfull.'
|
|
);
|
|
}
|
|
_blanket.utils.blanketEval(instrumented);
|
|
cb();
|
|
_blanket.requiringFile(url, true);
|
|
} catch (err) {
|
|
if (_blanket.options('ignoreScriptError')) {
|
|
//we can continue like normal if
|
|
//we're ignoring script errors,
|
|
//but otherwise we don't want
|
|
//to completeLoad or the error might be
|
|
//missed.
|
|
if (_blanket.options('debug')) {
|
|
console.log(
|
|
'BLANKET-There was an error loading the file:' + url
|
|
);
|
|
}
|
|
cb(content);
|
|
_blanket.requiringFile(url, true);
|
|
} else {
|
|
throw new Error('Error parsing instrumented code: ' + err);
|
|
}
|
|
}
|
|
}
|
|
);
|
|
} else {
|
|
if (_blanket.options('debug')) {
|
|
console.log(
|
|
'BLANKET-Loading (without instrumenting) the file:' + url
|
|
);
|
|
}
|
|
oldCb(content);
|
|
_blanket.requiringFile(url, true);
|
|
}
|
|
},
|
|
cacheXhrConstructor: function() {
|
|
var Constructor, createXhr, i, progId;
|
|
if (typeof XMLHttpRequest !== 'undefined') {
|
|
Constructor = XMLHttpRequest;
|
|
this.createXhr = function() {
|
|
return new Constructor();
|
|
};
|
|
} else if (typeof ActiveXObject !== 'undefined') {
|
|
Constructor = ActiveXObject;
|
|
for (i = 0; i < 3; i += 1) {
|
|
progId = progIds[i];
|
|
try {
|
|
new ActiveXObject(progId);
|
|
break;
|
|
} catch (e) {}
|
|
}
|
|
this.createXhr = function() {
|
|
return new Constructor(progId);
|
|
};
|
|
}
|
|
},
|
|
craeteXhr: function() {
|
|
throw new Error(
|
|
'cacheXhrConstructor is supposed to overwrite this function.'
|
|
);
|
|
},
|
|
getFile: function(url, callback, errback, onXhr) {
|
|
var foundInSession = false;
|
|
if (_blanket.blanketSession) {
|
|
var files = Object.keys(_blanket.blanketSession);
|
|
for (var i = 0; i < files.length; i++) {
|
|
var key = files[i];
|
|
if (url.indexOf(key) > -1) {
|
|
callback(_blanket.blanketSession[key]);
|
|
foundInSession = true;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
if (!foundInSession) {
|
|
var xhr = _blanket.utils.createXhr();
|
|
xhr.open('GET', url, true);
|
|
|
|
//Allow overrides specified in config
|
|
if (onXhr) {
|
|
onXhr(xhr, url);
|
|
}
|
|
|
|
xhr.onreadystatechange = function(evt) {
|
|
var status, err;
|
|
|
|
//Do not explicitly handle errors, those should be
|
|
//visible via console output in the browser.
|
|
if (xhr.readyState === 4) {
|
|
status = xhr.status;
|
|
if (
|
|
status > 399 &&
|
|
status <
|
|
600 /*||
|
|
(status === 0 &&
|
|
navigator.userAgent.toLowerCase().indexOf('firefox') > -1)
|
|
*/
|
|
) {
|
|
//An http 4xx or 5xx error. Signal an error.
|
|
err = new Error(url + ' HTTP status: ' + status);
|
|
err.xhr = xhr;
|
|
errback(err);
|
|
} else {
|
|
callback(xhr.responseText);
|
|
}
|
|
}
|
|
};
|
|
try {
|
|
xhr.send(null);
|
|
} catch (e) {
|
|
if (
|
|
e.code &&
|
|
(e.code === 101 || e.code === 1012) &&
|
|
_blanket.options('ignoreCors') === false
|
|
) {
|
|
//running locally and getting error from browser
|
|
_blanket.showManualLoader();
|
|
} else {
|
|
throw e;
|
|
}
|
|
}
|
|
}
|
|
},
|
|
},
|
|
});
|
|
|
|
(function() {
|
|
var require = blanket.options('commonJS')
|
|
? blanket._commonjs.require
|
|
: window.require;
|
|
var requirejs = blanket.options('commonJS')
|
|
? blanket._commonjs.requirejs
|
|
: window.requirejs;
|
|
if (
|
|
!_blanket.options('engineOnly') &&
|
|
_blanket.options('existingRequireJS')
|
|
) {
|
|
_blanket.utils.oldloader = requirejs.load;
|
|
|
|
requirejs.load = function(context, moduleName, url) {
|
|
_blanket.requiringFile(url);
|
|
_blanket.utils.getFile(
|
|
url,
|
|
function(content) {
|
|
_blanket.utils.processFile(
|
|
content,
|
|
url,
|
|
function newLoader() {
|
|
context.completeLoad(moduleName);
|
|
},
|
|
function oldLoader() {
|
|
_blanket.utils.oldloader(context, moduleName, url);
|
|
}
|
|
);
|
|
},
|
|
function(err) {
|
|
_blanket.requiringFile();
|
|
throw err;
|
|
}
|
|
);
|
|
};
|
|
}
|
|
// Save the XHR constructor, just in case frameworks like Sinon would sandbox it.
|
|
_blanket.utils.cacheXhrConstructor();
|
|
})();
|
|
})(blanket);
|
|
|
|
(function() {
|
|
if (!mocha) {
|
|
throw new Exception('mocha library does not exist in global namespace!');
|
|
}
|
|
|
|
/*
|
|
* Mocha Events:
|
|
*
|
|
* - `start` execution started
|
|
* - `end` execution complete
|
|
* - `suite` (suite) test suite execution started
|
|
* - `suite end` (suite) all tests (and sub-suites) have finished
|
|
* - `test` (test) test execution started
|
|
* - `test end` (test) test completed
|
|
* - `hook` (hook) hook execution started
|
|
* - `hook end` (hook) hook complete
|
|
* - `pass` (test) test passed
|
|
* - `fail` (test, err) test failed
|
|
*
|
|
*/
|
|
|
|
var OriginalReporter = mocha._reporter;
|
|
|
|
var BlanketReporter = function(runner) {
|
|
runner.on('start', function() {
|
|
blanket.setupCoverage();
|
|
});
|
|
|
|
runner.on('end', function() {
|
|
blanket.onTestsDone();
|
|
});
|
|
|
|
runner.on('suite', function() {
|
|
blanket.onModuleStart();
|
|
});
|
|
|
|
runner.on('test', function() {
|
|
blanket.onTestStart();
|
|
});
|
|
|
|
runner.on('test end', function(test) {
|
|
blanket.onTestDone(test.parent.tests.length, test.state === 'passed');
|
|
});
|
|
|
|
// NOTE: this is an instance of BlanketReporter
|
|
new OriginalReporter(runner);
|
|
};
|
|
|
|
BlanketReporter.prototype = OriginalReporter.prototype;
|
|
|
|
mocha.reporter(BlanketReporter);
|
|
|
|
var oldRun = mocha.run,
|
|
oldCallback = null;
|
|
|
|
mocha.run = function(finishCallback) {
|
|
oldCallback = finishCallback;
|
|
console.log('waiting for blanket...');
|
|
};
|
|
blanket.beforeStartTestRunner({
|
|
callback: function() {
|
|
if (!blanket.options('existingRequireJS')) {
|
|
oldRun(oldCallback);
|
|
}
|
|
mocha.run = oldRun;
|
|
},
|
|
});
|
|
})();
|