21 lines
493 B
JavaScript
21 lines
493 B
JavaScript
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// Copyright 2024 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: --no-lazy-feedback-allocation --clone-object-sidestep-transitions
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// Flags: --verify-heap --allow-natives-syntax
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const o = {};
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o.d = 512;
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const p = { p:42 };
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function f() {
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const copy = { __proto__: p, ...o };
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const dummy = { ...copy };
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%HeapObjectVerify(dummy);
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copy.x = 55;
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}
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f();
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o.d = undefined;
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f();
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