The Tor Browser / file comparison
comparison: js/src/tests/js1_5/extensions/regress-341956-01.js
js/src/tests/js1_5/extensions/regress-341956-01.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:8ce043bd1fb3 |
|---|---|
| 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/. */ | |
| 5 | |
| 6 //----------------------------------------------------------------------------- | |
| 7 var BUGNUMBER = 341956; | |
| 8 var summary = 'GC Hazards in jsarray.c - unshift'; | |
| 9 var actual = 'No Crash'; | |
| 10 var expect = 'No Crash'; | |
| 11 | |
| 12 //----------------------------------------------------------------------------- | |
| 13 test(); | |
| 14 //----------------------------------------------------------------------------- | |
| 15 | |
| 16 function test() | |
| 17 { | |
| 18 enterFunc ('test'); | |
| 19 printBugNumber(BUGNUMBER); | |
| 20 printStatus (summary); | |
| 21 | |
| 22 var N = 0xFFFFFFFF; | |
| 23 | |
| 24 var a = []; | |
| 25 a[N - 1] = 1; | |
| 26 a.__defineGetter__(N - 1, function() { | |
| 27 var tmp = []; | |
| 28 tmp[N - 2] = 0; | |
| 29 if (typeof gc == 'function') | |
| 30 gc(); | |
| 31 for (var i = 0; i != 50000; ++i) { | |
| 32 var tmp = 1 / 3; | |
| 33 tmp /= 10; | |
| 34 } | |
| 35 for (var i = 0; i != 1000; ++i) { | |
| 36 // Make string with 11 characters that would take | |
| 37 // (11 + 1) * 2 bytes or sizeof(JSAtom) so eventually | |
| 38 // malloc will ovewrite just freed atoms. | |
| 39 var tmp2 = Array(12).join(' '); | |
| 40 } | |
| 41 return 10; | |
| 42 }); | |
| 43 | |
| 44 | |
| 45 // The following always-throw getter is to stop unshift from doing | |
| 46 // 2^32 iterations. | |
| 47 var toStop = "stringToStop"; | |
| 48 a[N - 3] = 0; | |
| 49 a.__defineGetter__(N - 3, function() { throw toStop; }); | |
| 50 | |
| 51 var good = false; | |
| 52 | |
| 53 try { | |
| 54 a.unshift(1); | |
| 55 } catch (e) { | |
| 56 if (e === toStop) | |
| 57 good = true; | |
| 58 } | |
| 59 | |
| 60 expect = true; | |
| 61 actual = good; | |
| 62 | |
| 63 reportCompare(expect, actual, summary); | |
| 64 | |
| 65 print('Done'); | |
| 66 | |
| 67 exitFunc ('test'); | |
| 68 } |
