1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/tests/js1_4/Functions/function-001.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,89 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +
1.10 +/**
1.11 + * File Name: function-001.js
1.12 + * Description:
1.13 + *
1.14 + * http://scopus.mcom.com/bugsplat/show_bug.cgi?id=324455
1.15 + *
1.16 + * Earlier versions of JavaScript supported access to the arguments property
1.17 + * of the function object. This property held the arguments to the function.
1.18 + * function f() {
1.19 + * return f.arguments[0]; // deprecated
1.20 + * }
1.21 + * var x = f(3); // x will be 3
1.22 + *
1.23 + * This feature is not a part of the final ECMA standard. Instead, scripts
1.24 + * should simply use just "arguments":
1.25 + *
1.26 + * function f() {
1.27 + * return arguments[0]; // okay
1.28 + * }
1.29 + *
1.30 + * var x = f(3); // x will be 3
1.31 + *
1.32 + * Again, this feature was motivated by performance concerns. Access to the
1.33 + * arguments property is not threadsafe, which is of particular concern in
1.34 + * server environments. Also, the compiler can generate better code for
1.35 + * functions because it can tell when the arguments are being accessed only by
1.36 + * name and avoid setting up the arguments object.
1.37 + *
1.38 + * Author: christine@netscape.com
1.39 + * Date: 11 August 1998
1.40 + */
1.41 +var SECTION = "function-001.js";
1.42 +var VERSION = "JS1_4";
1.43 +var TITLE = "Accessing the arguments property of a function object";
1.44 +var BUGNUMBER="324455";
1.45 +startTest();
1.46 +writeHeaderToLog( SECTION + " "+ TITLE);
1.47 +
1.48 +new TestCase(
1.49 + SECTION,
1.50 + "return function.arguments",
1.51 + "P",
1.52 + TestFunction_2("P", "A","S","S")[0] +"");
1.53 +
1.54 +
1.55 +new TestCase(
1.56 + SECTION,
1.57 + "return arguments",
1.58 + "P",
1.59 + TestFunction_1( "P", "A", "S", "S" )[0] +"");
1.60 +
1.61 +new TestCase(
1.62 + SECTION,
1.63 + "return arguments when function contains an arguments property",
1.64 + "PASS",
1.65 + TestFunction_3( "P", "A", "S", "S" ) +"");
1.66 +
1.67 +new TestCase(
1.68 + SECTION,
1.69 + "return function.arguments when function contains an arguments property",
1.70 + "[object Arguments]",
1.71 + TestFunction_4( "F", "A", "I", "L" ) +"");
1.72 +
1.73 +test();
1.74 +
1.75 +function TestFunction_1( a, b, c, d, e ) {
1.76 + return arguments;
1.77 +}
1.78 +
1.79 +function TestFunction_2( a, b, c, d, e ) {
1.80 + return TestFunction_2.arguments;
1.81 +}
1.82 +
1.83 +function TestFunction_3( a, b, c, d, e ) {
1.84 + var arguments = "PASS";
1.85 + return arguments;
1.86 +}
1.87 +
1.88 +function TestFunction_4( a, b, c, d, e ) {
1.89 + var arguments = "FAIL";
1.90 + return TestFunction_4.arguments;
1.91 +}
1.92 +
