7772a2df9dPR-URL: https://github.com/nodejs/node/pull/59805 Reviewed-By: Filip Skokan <panva.ip@gmail.com> Reviewed-By: Richard Lau <richard.lau@ibm.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
33 lines
767 B
JavaScript
33 lines
767 B
JavaScript
// 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: --script-context-cells --allow-natives-syntax
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// Flags: --turbofan --maglev --no-stress-maglev
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// Flags: --sparkplug --no-always-sparkplug
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class A {}
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var origA = A;
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function create() {
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return new A();
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}
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%PrepareFunctionForOptimization(create);
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create();
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%OptimizeFunctionOnNextCall(create);
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var o1 = create();
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assertOptimized(create);
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assertTrue(o1 instanceof A);
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// Change what A is.
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var newACalled = false;
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A = function() { newACalled = true; }
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assertUnoptimized(create);
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var o2 = create();
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assertFalse(o2 instanceof origA);
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assertTrue(o2 instanceof A);
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assertTrue(newACalled);
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