1 /* The contents of this file are subject to the Netscape Public 2 * License Version 1.1 (the "License"); you may not use this file 3 * except in compliance with the License. You may obtain a copy of 4 * the License at http://www.mozilla.org/NPL/ 5 * 6 * Software distributed under the License is distributed on an "AS 7 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or 8 * implied. See the License for the specific language governing 9 * rights and limitations under the License. 10 * 11 * The Original Code is Mozilla Communicator client code, released March 12 * 31, 1998. 13 * 14 * The Initial Developer of the Original Code is Netscape Communications 15 * Corporation. Portions created by Netscape are 16 * Copyright (C) 1998 Netscape Communications Corporation. All 17 * Rights Reserved. 18 * 19 * Contributor(s): 20 * 21 */ 22 /** 23 File Name: 10.1.8-2 24 ECMA Section: Arguments Object 25 Description: 26 27 When control enters an execution context for declared function code, 28 anonymous code, or implementation-supplied code, an arguments object is 29 created and initialized as follows: 30 31 The [[Prototype]] of the arguments object is to the original Object 32 prototype object, the one that is the initial value of Object.prototype 33 (section 15.2.3.1). 34 35 A property is created with name callee and property attributes {DontEnum}. 36 The initial value of this property is the function object being executed. 37 This allows anonymous functions to be recursive. 38 39 A property is created with name length and property attributes {DontEnum}. 40 The initial value of this property is the number of actual parameter values 41 supplied by the caller. 42 43 For each non-negative integer, iarg, less than the value of the length 44 property, a property is created with name ToString(iarg) and property 45 attributes { DontEnum }. The initial value of this property is the value 46 of the corresponding actual parameter supplied by the caller. The first 47 actual parameter value corresponds to iarg = 0, the second to iarg = 1 and 48 so on. In the case when iarg is less than the number of formal parameters 49 for the function object, this property shares its value with the 50 corresponding property of the activation object. This means that changing 51 this property changes the corresponding property of the activation object 52 and vice versa. The value sharing mechanism depends on the implementation. 53 54 Author: christine (at) netscape.com 55 Date: 12 november 1997 56 */ 57 58 var SECTION = "10.1.8-2"; 59 var VERSION = "ECMA_1"; 60 startTest(); 61 var TITLE = "Arguments Object"; 62 63 writeHeaderToLog( SECTION + " "+ TITLE); 64 65 var testcases = new Array(); 66 67 // Tests for anonymous functions 68 69 var GetCallee = new Function( "var c = arguments.callee; return c" ); 70 var GetArguments = new Function( "var a = arguments; return a" ); 71 var GetLength = new Function( "var l = arguments.length; return l" ); 72 73 var ARG_STRING = "value of the argument property"; 74 75 testcases[tc++] = new TestCase( SECTION, 76 "GetCallee()", 77 GetCallee, 78 GetCallee() ); 79 80 var LIMIT = 100; 81 82 for ( var i = 0, args = "" ; i < LIMIT; i++ ) { 83 args += String(i) + ( i+1 < LIMIT ? "," : "" ); 84 85 } 86 87 var LENGTH = eval( "GetLength("+ args +")" ); 88 89 testcases[tc++] = new TestCase( SECTION, 90 "GetLength("+args+")", 91 100, 92 LENGTH ); 93 94 var ARGUMENTS = eval( "GetArguments( " +args+")" ); 95 96 for ( var i = 0; i < 100; i++ ) { 97 testcases[tc++] = new TestCase( SECTION, 98 "GetArguments("+args+")["+i+"]", 99 i, 100 ARGUMENTS[i] ); 101 } 102 103 test(); 104 105 function test() { 106 for ( tc=0; tc < testcases.length; tc++ ) { 107 testcases[tc].passed = writeTestCaseResult( 108 testcases[tc].expect, 109 testcases[tc].actual, 110 testcases[tc].description +" = "+ 111 testcases[tc].actual ); 112 113 testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value "; 114 } 115 stopTest(); 116 return ( testcases ); 117 } 118