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>
29 lines
533 B
JavaScript
29 lines
533 B
JavaScript
// Copyright 2016 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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var v = 0;
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function foo(a) {
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v = a;
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}
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this.x = 0;
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delete x;
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%PrepareFunctionForOptimization(foo);
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foo();
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foo();
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%OptimizeFunctionOnNextCall(foo);
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foo();
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assertEquals(undefined, v);
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Object.freeze(this);
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%PrepareFunctionForOptimization(foo);
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foo(4);
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foo(5);
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%OptimizeFunctionOnNextCall(foo);
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foo(6);
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assertEquals(undefined, v);
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