The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/tests/js1_5/GC/regress-341877-02.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,45 @@
     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 +var BUGNUMBER = 341877;
    1.11 +var summary = 'GC hazard with for-in loop';
    1.12 +var actual = 'No Crash';
    1.13 +var expect = 'No Crash';
    1.14 +
    1.15 +printBugNumber(BUGNUMBER);
    1.16 +printStatus (summary);
    1.17 +
    1.18 +var obj = { };
    1.19 +
    1.20 +var prop = "xsomePropety".substr(1);
    1.21 +
    1.22 +obj.first = "first"
    1.23 +
    1.24 +  obj[prop] = 1;
    1.25 +
    1.26 +for (var elem in obj) {
    1.27 +  var tmp = elem.toString();
    1.28 +  delete obj[prop];
    1.29 +  // ensure that prop is cut from all roots
    1.30 +  prop = "xsomePropety".substr(2);
    1.31 +  obj[prop] = 2;
    1.32 +  delete obj[prop];
    1.33 +  prop = null;
    1.34 +  if (typeof gc == 'function')
    1.35 +    gc();
    1.36 +  for (var i = 0; i != 50000; ++i) {
    1.37 +    var tmp = 1 / 3;
    1.38 +    tmp /= 10;
    1.39 +  }
    1.40 +  for (var i = 0; i != 1000; ++i) {
    1.41 +    // Make string with 11 characters that would take
    1.42 +    // (11 + 1) * 2 bytes or sizeof(JSAtom) so eventually
    1.43 +    // malloc will ovewrite just freed atoms.
    1.44 +    var tmp2 = Array(12).join(' ');
    1.45 +  }
    1.46 +}
    1.47 + 
    1.48 +reportCompare(expect, actual, summary);