16 lines
462 B
JavaScript
16 lines
462 B
JavaScript
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// Copyright 2019 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --expose-gc
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const set = new WeakSet()
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const obj = {};
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// Two GCs to promote {set} and {obj} to old-space.
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gc();
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gc();
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// Allocate a large array so {obj} will become an evacuation candidate.
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const foo = new Int8Array(0x0F000000);
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// Trigger ephemeron key write barrier.
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set.add(obj);
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