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: 15.3.5-1.js 24 ECMA Section: 15.3.5 Properties of Function Instances 25 new Function(p1, p2, ..., pn, body ) 26 27 Description: 28 29 15.3.5.1 length 30 31 The value of the length property is usually an integer that indicates 32 the "typical" number of arguments expected by the function. However, 33 the language permits the function to be invoked with some other number 34 of arguments. The behavior of a function when invoked on a number of 35 arguments other than the number specified by its length property depends 36 on the function. 37 38 15.3.5.2 prototype 39 The value of the prototype property is used to initialize the internal [[ 40 Prototype]] property of a newly created object before the Function object 41 is invoked as a constructor for that newly created object. 42 43 15.3.5.3 arguments 44 45 The value of the arguments property is normally null if there is no 46 outstanding invocation of the function in progress (that is, the function has been called 47 but has not yet returned). When a non-internal Function object (15.3.2.1) is invoked, its 48 arguments property is "dynamically bound" to a newly created object that contains the 49 arguments on which it was invoked (see 10.1.6 and 10.1.8). Note that the use of this 50 property is discouraged; it is provided principally for compatibility with existing old code. 51 52 Author: christine (at) netscape.com 53 Date: 28 october 1997 54 55 */ 56 57 var SECTION = "15.3.5-2"; 58 var VERSION = "ECMA_1"; 59 startTest(); 60 var TITLE = "Properties of Function Instances"; 61 62 writeHeaderToLog( SECTION + " "+TITLE); 63 64 var testcases = getTestCases(); 65 test(); 66 67 function getTestCases() { 68 var array = new Array(); 69 var item = 0; 70 71 var MyObject = new Function( 'a', 'b', 'c', 'this.a = a; this.b = b; this.c = c; this.value = a+b+c; this.valueOf = new Function( "return this.value" )' ); 72 73 array[item++] = new TestCase( SECTION, "MyObject.length", 3, MyObject.length ); 74 array[item++] = new TestCase( SECTION, "typeof MyObject.prototype", "object", typeof MyObject.prototype ); 75 array[item++] = new TestCase( SECTION, "typeof MyObject.prototype.constructor", "function", typeof MyObject.prototype.constructor ); 76 array[item++] = new TestCase( SECTION, "MyObject.arguments", null, MyObject.arguments ); 77 78 return ( array ); 79 } 80 function test() { 81 for ( tc=0; tc < testcases.length; tc++ ) { 82 testcases[tc].passed = writeTestCaseResult( 83 testcases[tc].expect, 84 testcases[tc].actual, 85 testcases[tc].description +" = "+ testcases[tc].actual ); 86 87 testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value "; 88 } 89 stopTest(); 90 return ( testcases ); 91 } 92 93
