The Tor Browser: js/src/tests/js1_8/extensions/regress-394709.js@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

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

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

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

     6 //-----------------------------------------------------------------------------

     7 var BUGNUMBER = 394709;

     8 var summary = 'Do not leak with object.watch and closure';

     9 var actual = 'No Leak';

    10 var expect = 'No Leak';

    12 if (typeof countHeap == 'undefined')

    13 {

    14   countHeap = function () {

    15     print('This test requires countHeap which is not supported');

    16     return 0;

    17   };

    18 }

    20 //-----------------------------------------------------------------------------

    21 test();

    22 //-----------------------------------------------------------------------------

    24 function test()

    25 {

    26   enterFunc ('test');

    27   printBugNumber(BUGNUMBER);

    28   printStatus (summary);

    30   // Ensure that we flush all values so that gc() collects all objects that

    31   // the user cannot reach from JS.

    32   eval();

    34   runtest();

    35   gc();

    36   var count1 = countHeap();

    37   runtest();

    38   gc();

    39   var count2 = countHeap();

    40   runtest();

    41   gc();

    42   var count3 = countHeap();

    43   /* Try to be tolerant of conservative GC noise: we want a steady leak. */

    44   if (count1 < count2 && count2 < count3)

    45     throw "A leaky watch point is detected";

    47   function runtest () {

    48     var obj = { b: 0 };

    49     obj.watch('b', watcher);

    51     function watcher(id, old, value) {

    52       ++obj.n;

    53       return value;

    54     }

    55   }

    57   reportCompare(expect, actual, summary);

    59   exitFunc ('test');

    60 }

The Tor Browser / file revision