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e9a5a7f918
* [javascriptcore-test262-automation] changes from git@github.com:WebKit/webkit.git at sha 949e26452cfa153a7f4afe593da97e2fe9e1b706 on Tue Jul 03 2018 14:35:15 GMT-0400 (Eastern Daylight Time)
57 lines
2.2 KiB
JavaScript
57 lines
2.2 KiB
JavaScript
/*
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* Copyright (C) 2015 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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// Regression test for https://bugs.webkit.org/show_bug.cgi?id=144067.
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// This test aims to continually override the setter in a sparse array object, and
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// trigger GCs to give it a chance to collect the newly set entry value if the bug exists.
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// With the bug fixed, this test should not crash.
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var data = {};
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var sparseObj = {};
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for (var i = 0; i < 5; i++)
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sparseObj[i] = i;
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function useMemoryToTriggerGCs() {
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var arr = [];
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var limit = $vm.dfgTrue() ? 10000 : 100;
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for (var i = 0; i < limit; i++)
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arr[i] = { a: "using" + i, b: "up" + i, c: "memory" + i };
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return arr;
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}
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function foo(x) {
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if (!x)
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return;
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data.textContent = sparseObj.__defineSetter__("16384", foo);
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for (var i = 0; i < 10; i++)
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sparseObj.__defineSetter__("" + (16384 + i), foo);
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useMemoryToTriggerGCs();
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sparseObj[16384] = x - 1;
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}
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var recursionDepthNeededToTriggerTheFailure = 100;
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foo(recursionDepthNeededToTriggerTheFailure);
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