21 lines
523 B
JavaScript
21 lines
523 B
JavaScript
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// Copyright 2021 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: --allow-natives-syntax
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function bar(x) { delete x.bla; x.bla = 23 }
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function foo() {
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let obj = {bla: 0};
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Object.defineProperty(obj, 'bla', {writable: false});
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bar(obj);
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return obj.bla;
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}
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%PrepareFunctionForOptimization(foo);
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assertEquals(23, foo());
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assertEquals(23, foo());
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(23, foo());
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