v8/test/mjsunit/regress/regress-crbug-980168.js

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// Copyright 2019 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.
// Flags: --verify-heap
// seal then freeze.
(function () {
const v1 = Object.seal(Object);
const v3 = Object();
const v4 = Object(Object);
v3.__proto__ = v4;
const v6 = Object.freeze(Object);
})();
// preventExtensions then freeze.
(function () {
const v1 = Object.preventExtensions(Object);
const v3 = Object();
const v4 = Object(Object);
v3.__proto__ = v4;
const v6 = Object.freeze(Object);
})();
// preventExtensions then seal.
(function () {
const v1 = Object.preventExtensions(Object);
const v3 = Object();
const v4 = Object(Object);
v3.__proto__ = v4;
const v6 = Object.seal(Object);
})();
// freeze.
(function () {
const v3 = Object();
const v4 = Object(Object);
v3.__proto__ = v4;
const v6 = Object.freeze(Object);
})();
// seal.
(function () {
const v3 = Object();
const v4 = Object(Object);
v3.__proto__ = v4;
const v6 = Object.seal(Object);
})();
// preventExtensions.
(function () {
const v3 = Object();
const v4 = Object(Object);
v3.__proto__ = v4;
const v6 = Object.preventExtensions(Object);
})();