| /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ |
| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| |
| /** |
| File Name: 15.3.5-1.js |
| ECMA Section: 15.3.5 Properties of Function Instances |
| new Function(p1, p2, ..., pn, body ) |
| |
| Description: |
| |
| 15.3.5.1 length |
| |
| The value of the length property is usually an integer that indicates |
| the "typical" number of arguments expected by the function. However, |
| the language permits the function to be invoked with some other number |
| of arguments. The behavior of a function when invoked on a number of |
| arguments other than the number specified by its length property depends |
| on the function. |
| |
| 15.3.5.2 prototype |
| The value of the prototype property is used to initialize the internal [[ |
| Prototype]] property of a newly created object before the Function object |
| is invoked as a constructor for that newly created object. |
| |
| 15.3.5.3 arguments |
| |
| The value of the arguments property is normally null if there is no |
| outstanding invocation of the function in progress (that is, the function has been called |
| but has not yet returned). When a non-internal Function object (15.3.2.1) is invoked, its |
| arguments property is "dynamically bound" to a newly created object that contains the |
| arguments on which it was invoked (see 10.1.6 and 10.1.8). Note that the use of this |
| property is discouraged; it is provided principally for compatibility with existing old code. |
| |
| Author: christine@netscape.com |
| Date: 28 october 1997 |
| |
| */ |
| |
| var SECTION = "15.3.5-2"; |
| var VERSION = "ECMA_1"; |
| startTest(); |
| var TITLE = "Properties of Function Instances"; |
| |
| writeHeaderToLog( SECTION + " "+TITLE); |
| |
| 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" )' ); |
| |
| new TestCase( SECTION, "MyObject.length", 3, MyObject.length ); |
| new TestCase( SECTION, "typeof MyObject.prototype", "object", typeof MyObject.prototype ); |
| new TestCase( SECTION, "typeof MyObject.prototype.constructor", "function", typeof MyObject.prototype.constructor ); |
| new TestCase( SECTION, "MyObject.arguments", null, MyObject.arguments ); |
| |
| test(); |