nodejs/deps/v8/test/mjsunit/regress/regress-crbug-1263389.js

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// Copyright 2021 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This is testing a regression a slow store IC handler, so force allocation of
// type feedback vectors.
//
// Flags: --no-lazy-feedback-allocation
function crash() { assertTrue(false); }
Object.prototype.__defineSetter__("crashOnSet", crash);
function test() {
const o = { a: 1 };
return { ...o, crashOnSet: 42 };
}
// Run once to install the slow IC handler.
test();
// Hit the slow handler.
test();