37 lines
806 B
JavaScript
37 lines
806 B
JavaScript
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// Copyright 2022 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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//
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// Flags: --maglev --allow-natives-syntax
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function foo(bar) {
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return bar.func();
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}
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class Bar {
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func() {}
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}
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Bar.prototype.__proto__ = new Proxy(Bar.prototype.__proto__, {
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get() {;
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return "42";
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}
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});
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%PrepareFunctionForOptimization(foo);
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foo(new Bar());
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foo(new Bar());
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%OptimizeMaglevOnNextCall(foo);
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foo(new Bar());
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function foo_primitive(s) {
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return s.substring();
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}
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String.prototype.__proto__ = new Proxy(String.prototype.__proto__, {
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get() {;
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return "42";
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}
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});
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%PrepareFunctionForOptimization(foo_primitive);
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foo_primitive("");
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foo_primitive("");
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%OptimizeMaglevOnNextCall(foo_primitive);
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foo_primitive("");
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