зеркало из https://github.com/mozilla/pjs.git
116 строки
4.9 KiB
JavaScript
116 строки
4.9 KiB
JavaScript
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/**
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File Name: 15.3.5-1.js
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ECMA Section: 15.3.5 Properties of Function Instances
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new Function(p1, p2, ..., pn, body )
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Description:
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15.3.5.1 length
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The value of the length property is usually an integer that indicates
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the "typical" number of arguments expected by the function. However,
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the language permits the function to be invoked with some other number
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of arguments. The behavior of a function when invoked on a number of
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arguments other than the number specified by its length property depends
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on the function.
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15.3.5.2 prototype
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The value of the prototype property is used to initialize the internal [[
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Prototype]] property of a newly created object before the Function object
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is invoked as a constructor for that newly created object.
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15.3.5.3 arguments
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The value of the arguments property is normally null if there is no
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outstanding invocation of the function in progress (that is, the function has been called
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but has not yet returned). When a non-internal Function object (15.3.2.1) is invoked, its
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arguments property is "dynamically bound" to a newly created object that contains the
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arguments on which it was invoked (see 10.1.6 and 10.1.8). Note that the use of this
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property is discouraged; it is provided principally for compatibility with existing old code.
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Author: christine@netscape.com
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Date: 28 october 1997
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*/
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var SECTION = "15.3.5-1";
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var VERSION = "ECMA_1";
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startTest();
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var TITLE = "Properties of Function Instances";
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writeHeaderToLog( SECTION + " "+TITLE);
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var args = "";
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for ( var i = 0; i < 2000; i++ ) {
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args += "arg"+i;
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if ( i != 1999 ) {
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args += ",";
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}
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}
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var s = "";
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for ( var i = 0; i < 2000; i++ ) {
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s += ".0005";
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if ( i != 1999 ) {
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s += ",";
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}
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}
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MyFunc = new Function( args, "var r=0; for (var i = 0; i < MyFunc.length; i++ ) { if ( eval('arg'+i) == void 0) break; else r += eval('arg'+i); }; return r");
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MyObject = new Function( args, "for (var i = 0; i < MyFunc.length; i++ ) { if ( eval('arg'+i) == void 0) break; eval('this.arg'+i +'=arg'+i); };");
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new TestCase( SECTION, "MyFunc.length", 2000, MyFunc.length );
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new TestCase( SECTION, "var MY_OB = eval('MyFunc(s)')", 1, eval("var MY_OB = MyFunc("+s+"); MY_OB") );
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new TestCase( SECTION, "MyFunc.prototype.toString()", "[object Object]", MyFunc.prototype.toString() );
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new TestCase( SECTION, "typeof MyFunc.prototype", "object", typeof MyFunc.prototype );
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new TestCase( SECTION, "MyObject.length", 2000, MyObject.length );
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new TestCase( SECTION, "FUN1 = new Function( 'a','b','c', 'return FUN1.length' ); FUN1.length", 3, eval("FUN1 = new Function( 'a','b','c', 'return FUN1.length' ); FUN1.length") );
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new TestCase( SECTION, "FUN1 = new Function( 'a','b','c', 'return FUN1.length' ); FUN1()", 3, eval("FUN1 = new Function( 'a','b','c', 'return FUN1.length' ); FUN1()") );
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new TestCase( SECTION, "FUN1 = new Function( 'a','b','c', 'return FUN1.length' ); FUN1(1,2,3,4,5)", 3, eval("FUN1 = new Function( 'a','b','c', 'return FUN1.length' ); FUN1(1,2,3,4,5)") );
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test();
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