michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: 
michael@0: /**
michael@0:    File Name:          15.3.5-1.js
michael@0:    ECMA Section:       15.3.5 Properties of Function Instances
michael@0:    new Function(p1, p2, ..., pn, body )
michael@0: 
michael@0:    Description:
michael@0: 
michael@0:    15.3.5.1 length
michael@0: 
michael@0:    The value of the length property is usually an integer that indicates
michael@0:    the "typical" number of arguments expected by the function. However,
michael@0:    the language permits the function to be invoked with some other number
michael@0:    of arguments. The behavior of a function when invoked on a number of
michael@0:    arguments other than the number specified by its length property depends
michael@0:    on the function.
michael@0: 
michael@0:    15.3.5.2 prototype
michael@0:    The value of the prototype property is used to initialize the internal [[
michael@0:    Prototype]] property of a newly created object before the Function object
michael@0:    is invoked as a constructor for that newly created object.
michael@0: 
michael@0:    15.3.5.3 arguments
michael@0: 
michael@0:    The value of the arguments property is normally null if there is no
michael@0:    outstanding invocation of the function in progress (that is, the function has been called
michael@0:    but has not yet returned). When a non-internal Function object (15.3.2.1) is invoked, its
michael@0:    arguments property is "dynamically bound" to a newly created object that contains the
michael@0:    arguments on which it was invoked (see 10.1.6 and 10.1.8). Note that the use of this
michael@0:    property is discouraged; it is provided principally for compatibility with existing old code.
michael@0: 
michael@0:    Author:             christine@netscape.com
michael@0:    Date:               28 october 1997
michael@0: 
michael@0: */
michael@0: 
michael@0: var SECTION = "15.3.5-1";
michael@0: var VERSION = "ECMA_1";
michael@0: startTest();
michael@0: var TITLE   = "Properties of Function Instances";
michael@0: 
michael@0: writeHeaderToLog( SECTION + " "+TITLE);
michael@0: 
michael@0: var args = "";
michael@0: 
michael@0: for ( var i = 0; i < 2000; i++ ) {
michael@0:   args += "arg"+i;
michael@0:   if ( i != 1999 ) {
michael@0:     args += ",";
michael@0:   }
michael@0: }
michael@0: 
michael@0: var s = "";
michael@0: 
michael@0: for ( var i = 0; i < 2000; i++ ) {
michael@0:   s += ".0005";
michael@0:   if ( i != 1999 ) {
michael@0:     s += ",";
michael@0:   }
michael@0: }
michael@0: 
michael@0: 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");
michael@0: 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); };");
michael@0: 
michael@0: 
michael@0: new TestCase( SECTION, "MyFunc.length",                       2000,         MyFunc.length );
michael@0: new TestCase( SECTION, "var MY_OB = eval('MyFunc(s)')",       1,            eval("var MY_OB = MyFunc("+s+"); MY_OB") );
michael@0: new TestCase( SECTION, "MyFunc.prototype.toString()",       "[object Object]",  MyFunc.prototype.toString() );
michael@0: new TestCase( SECTION, "typeof MyFunc.prototype",           "object",           typeof MyFunc.prototype );
michael@0: 
michael@0: 
michael@0: new TestCase( SECTION, "MyObject.length",                       2000,         MyObject.length );
michael@0: 
michael@0: 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") );
michael@0: 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()") );
michael@0: 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)") );
michael@0: 
michael@0: test();