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// Copyright 2018 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.
(function testMegamorphicWithDontEnumTransition() {
function spread(o) { return { ...o }; }
// Set up transition tree
let obj = { ...{}, a: 0, b: 1, c: 2, };
Object.defineProperty(obj, "boom", { enumerable: false, configurable: true,
writable: true });
// make CloneObjectIC MEGAMORPHIC
spread(new Proxy({}, {}));
// Ensure we don't crash, and create the correct object
let result = spread({ a: 0, b: 1, c: 2, boom: 3 });
assertEquals({ a: 0, b: 1, c: 2, boom: 3 }, result);
assertEquals({
enumerable: true,
writable: true,
configurable: true,
value: 3,
}, Object.getOwnPropertyDescriptor(result, "boom"));
})();
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