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112 lines
4.4 KiB
JavaScript
112 lines
4.4 KiB
JavaScript
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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gTestfile = '10.1.4-3.js';
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/**
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File Name: 10.1.4-1.js
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ECMA Section: 10.1.4 Scope Chain and Identifier Resolution
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Description:
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Every execution context has associated with it a scope chain. This is
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logically a list of objects that are searched when binding an Identifier.
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When control enters an execution context, the scope chain is created and
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is populated with an initial set of objects, depending on the type of
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code. When control leaves the execution context, the scope chain is
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destroyed.
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During execution, the scope chain of the execution context is affected
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only by WithStatement. When execution enters a with block, the object
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specified in the with statement is added to the front of the scope chain.
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When execution leaves a with block, whether normally or via a break or
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continue statement, the object is removed from the scope chain. The object
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being removed will always be the first object in the scope chain.
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During execution, the syntactic production PrimaryExpression : Identifier
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is evaluated using the following algorithm:
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1. Get the next object in the scope chain. If there isn't one, go to step 5.
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2. Call the [[HasProperty]] method of Result(l), passing the Identifier as
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the property.
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3. If Result(2) is true, return a value of type Reference whose base object
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is Result(l) and whose property name is the Identifier.
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4. Go to step 1.
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5. Return a value of type Reference whose base object is null and whose
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property name is the Identifier.
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The result of binding an identifier is always a value of type Reference with
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its member name component equal to the identifier string.
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Author: christine@netscape.com
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Date: 12 november 1997
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*/
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var SECTION = "10.1.4-3";
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var VERSION = "ECMA_1";
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startTest();
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writeHeaderToLog( SECTION + " Scope Chain and Identifier Resolution");
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new TestCase( "SECTION",
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"with MyObject, eval should be [object Global].eval " );
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test();
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function test() {
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for ( gTc=0; gTc < gTestcases.length; gTc++ ) {
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var MYOBJECT = new MyObject();
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var INPUT = 2;
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gTestcases[gTc].description += ( INPUT +"" );
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with ( MYOBJECT ) {
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eval( INPUT );
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}
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gTestcases[gTc].passed = writeTestCaseResult(
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gTestcases[gTc].expect,
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gTestcases[gTc].actual,
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gTestcases[gTc].description +" = "+
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gTestcases[gTc].actual );
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gTestcases[gTc].reason += ( gTestcases[gTc].passed ) ? "" : "wrong value ";
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}
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stopTest();
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return ( gTestcases );
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}
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function MyObject() {
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this.eval = new Function( "x", "return(Math.pow(Number(x),2))" );
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}
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