blob: 24cea7c52d7c2b2cde25b8065f3e13d89d4c9e62 [file] [log] [blame]
/*
* Copyright (C) 2015 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// Regression test for https://bugs.webkit.org/show_bug.cgi?id=144067.
// This test aims to continually override the setter in a sparse array object, and
// trigger GCs to give it a chance to collect the newly set entry value if the bug exists.
// With the bug fixed, this test should not crash.
var data = {};
var sparseObj = {};
for (var i = 0; i < 5; i++)
sparseObj[i] = i;
function useMemoryToTriggerGCs() {
var arr = [];
var limit = DFGTrue() ? 10000 : 100;
for (var i = 0; i < limit; i++)
arr[i] = { a: "using" + i, b: "up" + i, c: "memory" + i };
return arr;
}
function foo(x) {
if (!x)
return;
data.textContent = sparseObj.__defineSetter__("16384", foo);
for (var i = 0; i < 10; i++)
sparseObj.__defineSetter__("" + (16384 + i), foo);
useMemoryToTriggerGCs();
sparseObj[16384] = x - 1;
}
var recursionDepthNeededToTriggerTheFailure = 100;
foo(recursionDepthNeededToTriggerTheFailure);