зеркало из https://github.com/mozilla/pjs.git
115 строки
4.3 KiB
JavaScript
115 строки
4.3 KiB
JavaScript
/* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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* License for the specific language governing rights and limitations
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* under the License.
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*
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* The Original Code is Mozilla Communicator client code, released March
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* 31, 1998.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are Copyright (C) 1998
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* Netscape Communications Corporation. All Rights Reserved.
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*
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*/
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/**
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File Name: 10.1.8-2
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ECMA Section: Arguments Object
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Description:
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When control enters an execution context for declared function code,
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anonymous code, or implementation-supplied code, an arguments object is
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created and initialized as follows:
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The [[Prototype]] of the arguments object is to the original Object
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prototype object, the one that is the initial value of Object.prototype
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(section 15.2.3.1).
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A property is created with name callee and property attributes {DontEnum}.
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The initial value of this property is the function object being executed.
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This allows anonymous functions to be recursive.
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A property is created with name length and property attributes {DontEnum}.
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The initial value of this property is the number of actual parameter values
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supplied by the caller.
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For each non-negative integer, iarg, less than the value of the length
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property, a property is created with name ToString(iarg) and property
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attributes { DontEnum }. The initial value of this property is the value
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of the corresponding actual parameter supplied by the caller. The first
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actual parameter value corresponds to iarg = 0, the second to iarg = 1 and
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so on. In the case when iarg is less than the number of formal parameters
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for the function object, this property shares its value with the
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corresponding property of the activation object. This means that changing
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this property changes the corresponding property of the activation object
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and vice versa. The value sharing mechanism depends on the implementation.
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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 = "10.1.8-2";
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var VERSION = "ECMA_1";
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startTest();
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var TITLE = "Arguments Object";
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writeHeaderToLog( SECTION + " "+ TITLE);
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var testcases = new Array();
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// Tests for anonymous functions
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var GetCallee = new Function( "var c = arguments.callee; return c" );
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var GetArguments = new Function( "var a = arguments; return a" );
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var GetLength = new Function( "var l = arguments.length; return l" );
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var ARG_STRING = "value of the argument property";
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testcases[tc++] = new TestCase( SECTION,
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"GetCallee()",
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GetCallee,
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GetCallee() );
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var LIMIT = 100;
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for ( var i = 0, args = "" ; i < LIMIT; i++ ) {
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args += String(i) + ( i+1 < LIMIT ? "," : "" );
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}
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var LENGTH = eval( "GetLength("+ args +")" );
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testcases[tc++] = new TestCase( SECTION,
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"GetLength("+args+")",
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100,
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LENGTH );
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var ARGUMENTS = eval( "GetArguments( " +args+")" );
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for ( var i = 0; i < 100; i++ ) {
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testcases[tc++] = new TestCase( SECTION,
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"GetArguments("+args+")["+i+"]",
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i,
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ARGUMENTS[i] );
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}
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test();
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function test() {
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for ( tc=0; tc < testcases.length; tc++ ) {
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testcases[tc].passed = writeTestCaseResult(
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testcases[tc].expect,
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testcases[tc].actual,
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testcases[tc].description +" = "+
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testcases[tc].actual );
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testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
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}
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stopTest();
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return ( testcases );
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}
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