js/src/tests/ecma/FunctionObjects/15.3.5-2.js

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     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/. */
     7 /**
     8    File Name:          15.3.5-1.js
     9    ECMA Section:       15.3.5 Properties of Function Instances
    10    new Function(p1, p2, ..., pn, body )
    12    Description:
    14    15.3.5.1 length
    16    The value of the length property is usually an integer that indicates
    17    the "typical" number of arguments expected by the function. However,
    18    the language permits the function to be invoked with some other number
    19    of arguments. The behavior of a function when invoked on a number of
    20    arguments other than the number specified by its length property depends
    21    on the function.
    23    15.3.5.2 prototype
    24    The value of the prototype property is used to initialize the internal [[
    25    Prototype]] property of a newly created object before the Function object
    26    is invoked as a constructor for that newly created object.
    28    15.3.5.3 arguments
    30    The value of the arguments property is normally null if there is no
    31    outstanding invocation of the function in progress (that is, the function has been called
    32    but has not yet returned). When a non-internal Function object (15.3.2.1) is invoked, its
    33    arguments property is "dynamically bound" to a newly created object that contains the
    34    arguments on which it was invoked (see 10.1.6 and 10.1.8). Note that the use of this
    35    property is discouraged; it is provided principally for compatibility with existing old code.
    37    Author:             christine@netscape.com
    38    Date:               28 october 1997
    40 */
    42 var SECTION = "15.3.5-2";
    43 var VERSION = "ECMA_1";
    44 startTest();
    45 var TITLE   = "Properties of Function Instances";
    47 writeHeaderToLog( SECTION + " "+TITLE);
    49 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" )' );
    51 new TestCase( SECTION, "MyObject.length",                       3,          MyObject.length );
    52 new TestCase( SECTION, "typeof MyObject.prototype",             "object",   typeof MyObject.prototype );
    53 new TestCase( SECTION, "typeof MyObject.prototype.constructor", "function", typeof MyObject.prototype.constructor );
    54 new TestCase( SECTION, "MyObject.arguments",                     null,       MyObject.arguments );
    56 test();

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