js/tests/js1_5/extensions/regress-351973.js

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
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  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is JavaScript Engine testing utilities.
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Mozilla Foundation.
  19  * Portions created by the Initial Developer are Copyright (C) 2006
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s): Igor Bukanov
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either the GNU General Public License Version 2 or later (the "GPL"), or
  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37
  38 var gTestfile = 'regress-351973.js';
  39 //-----------------------------------------------------------------------------
  40 var BUGNUMBER = 351973;
  41 var summary = 'GC hazard with unrooted ids in Object.toSource';
  42 var actual = 'No Crash';
  43 var expect = 'No Crash';
  44
  45
  46 //-----------------------------------------------------------------------------
  47 test();
  48 //-----------------------------------------------------------------------------
  49
  50 function test()
  51 {
  52   enterFunc ('test');
  53   printBugNumber(BUGNUMBER);
  54   printStatus (summary);
  55
  56   function removeAllProperties(o)
  57   {
  58     for (var prop in o)
  59       delete o[prop];
  60     for (var i = 0; i != 50*1000; ++i) {
  61       var tmp = Math.sqrt(i+0.2);
  62       tmp = 0;
  63     }
  64     if (typeof gc == "function")
  65       gc();
  66   }
  67
  68   function run_test()
  69   {
  70
  71     var o = {};
  72     o.first = { toSource: function() { removeAllProperties(o); } };
  73     for (var i = 0; i != 10; ++i) {
  74       o[Math.sqrt(i + 0.1)] = 1;
  75     }
  76     return o.toSource();
  77   }
  78
  79   print(run_test());
  80
  81   reportCompare(expect, actual, summary);
  82
  83   exitFunc ('test');
  84 }