gecko-dev/js/tests/js1_5/Object/regress-338709.js

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JavaScript
Executable File

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is JavaScript Engine testing utilities.
*
* The Initial Developer of the Original Code is
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s): Seno Aiko
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
var gTestfile = 'regress-338709.js';
//-----------------------------------------------------------------------------
var BUGNUMBER = 338709;
var summary = 'ReadOnly properties should not be overwritten by using ' +
'Object and try..throw..catch';
var actual = '';
var expect = '';
printBugNumber(BUGNUMBER);
printStatus (summary);
Object = function () { return Math };
expect = Math.LN2;
try
{
throw 1990;
}
catch (LN2)
{
}
actual = Math.LN2;
print("Math.LN2 = " + Math.LN2)
reportCompare(expect, actual, summary);
var s = new String("abc");
Object = function () { return s };
expect = s.length;
try
{
throw -8
}
catch (length)
{
}
actual = s.length;
print("length of '" + s + "' = " + s.length)
reportCompare(expect, actual, summary);
var re = /xy/m;
Object = function () { return re };
expect = re.multiline;
try
{
throw false
}
catch (multiline)
{
}
actual = re.multiline;
print("re.multiline = " + re.multiline)
reportCompare(expect, actual, summary);
if ("document" in this) {
// Let the document be its own documentElement.
Object = function () { return document }
expect = document.documentElement + '';
try
{
throw document;
}
catch (documentElement)
{
}
actual = document.documentElement + '';
print("document.documentElement = " + document.documentElement)
}
else
Object = this.constructor
reportCompare(expect, actual, summary);