27 lines
566 B
JavaScript
27 lines
566 B
JavaScript
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// Copyright 2017 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 C1() { }
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C1.prototype.f = function () { return 1; }
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function C2() { }
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C2.prototype.f = function () { throw 2; }
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var o1 = new C1();
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var o2 = new C2();
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function foo(o) {
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return o.f();
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}
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foo(o1);
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try { foo(o2); } catch(e) {}
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foo(o1);
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try { foo(o2); } catch(e) {}
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(1, foo(o1));
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assertThrows(() => foo(o2));
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