e31f0a7d25
PR-URL: https://github.com/nodejs/node/pull/28918 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>
22 lines
549 B
JavaScript
22 lines
549 B
JavaScript
// 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: --allow-natives-syntax
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const re = /abc/;
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// Move the test method one prototype up.
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re.__proto__.__proto__.test = re.__proto__.test;
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delete re.__proto__.test;
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function foo(s) {
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return re.test(s);
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};
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%PrepareFunctionForOptimization(foo);
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assertTrue(foo('abc'));
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assertTrue(foo('abc'));
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%OptimizeFunctionOnNextCall(foo);
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assertTrue(foo('abc'));
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assertFalse(foo('ab'));
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