19 lines
525 B
JavaScript
19 lines
525 B
JavaScript
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// Copyright 2023 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 foo(className) {
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var obj = {x: 12, y: 13};
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delete obj.x;
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obj[Symbol.toStringTag] = className;
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return obj.toString();
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}
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%PrepareFunctionForOptimization(foo);
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assertEquals('[object A]', foo('A'));
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assertEquals('[object B]', foo('B'));
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%OptimizeFunctionOnNextCall(foo);
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assertEquals('[object C]', foo('C'));
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