regress-338709.js - mozsearch

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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

//-----------------------------------------------------------------------------

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);