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comparison: js/src/tests/ecma/extensions/10.1.6.js
js/src/tests/ecma/extensions/10.1.6.js
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 | |
| 7 /** | |
| 8 File Name: 10.1.6 | |
| 9 ECMA Section: Activation Object | |
| 10 Description: | |
| 11 | |
| 12 If the function object being invoked has an arguments property, let x be | |
| 13 the value of that property; the activation object is also given an internal | |
| 14 property [[OldArguments]] whose initial value is x; otherwise, an arguments | |
| 15 property is created for the function object but the activation object is | |
| 16 not given an [[OldArguments]] property. Next, arguments object described | |
| 17 below (the same one stored in the arguments property of the activation | |
| 18 object) is used as the new value of the arguments property of the function | |
| 19 object. This new value is installed even if the arguments property already | |
| 20 exists and has the ReadOnly attribute (as it will for native Function | |
| 21 objects). (These actions are taken to provide compatibility with a form of | |
| 22 program syntax that is now discouraged: to access the arguments object for | |
| 23 function f within the body of f by using the expression f.arguments. | |
| 24 The recommended way to access the arguments object for function f within | |
| 25 the body of f is simply to refer to the variable arguments.) | |
| 26 | |
| 27 Author: christine@netscape.com | |
| 28 Date: 12 november 1997 | |
| 29 */ | |
| 30 | |
| 31 var SECTION = "10.1.6"; | |
| 32 var VERSION = "ECMA_1"; | |
| 33 startTest(); | |
| 34 var TITLE = "Activation Object"; | |
| 35 | |
| 36 writeHeaderToLog( SECTION + " "+ TITLE); | |
| 37 | |
| 38 var arguments = "FAILED!"; | |
| 39 | |
| 40 var ARG_STRING = "value of the argument property"; | |
| 41 | |
| 42 new TestCase( SECTION, | |
| 43 "(new TestObject(0,1,2,3,4,5)).length", | |
| 44 6, | |
| 45 (new TestObject(0,1,2,3,4,5)).length ); | |
| 46 | |
| 47 for ( i = 0; i < 6; i++ ) { | |
| 48 | |
| 49 new TestCase( SECTION, | |
| 50 "(new TestObject(0,1,2,3,4,5))["+i+"]", | |
| 51 i, | |
| 52 (new TestObject(0,1,2,3,4,5))[i]); | |
| 53 } | |
| 54 | |
| 55 | |
| 56 // The current object already has an arguments property. | |
| 57 | |
| 58 new TestCase( SECTION, | |
| 59 "(new AnotherTestObject(1,2,3)).arguments", | |
| 60 ARG_STRING, | |
| 61 (new AnotherTestObject(1,2,3)).arguments ); | |
| 62 | |
| 63 // The function invoked with [[Call]] | |
| 64 | |
| 65 new TestCase( SECTION, | |
| 66 "TestFunction(1,2,3)", | |
| 67 ARG_STRING, | |
| 68 TestFunction() + '' ); | |
| 69 | |
| 70 | |
| 71 test(); | |
| 72 | |
| 73 | |
| 74 | |
| 75 function Prototype() { | |
| 76 this.arguments = ARG_STRING; | |
| 77 } | |
| 78 function TestObject() { | |
| 79 this.__proto__ = new Prototype(); | |
| 80 return arguments; | |
| 81 } | |
| 82 function AnotherTestObject() { | |
| 83 this.__proto__ = new Prototype(); | |
| 84 return this; | |
| 85 } | |
| 86 function TestFunction() { | |
| 87 arguments = ARG_STRING; | |
| 88 return arguments; | |
| 89 } | |
| 90 function AnotherTestFunction() { | |
| 91 this.__proto__ = new Prototype(); | |
| 92 return this; | |
| 93 } |
