nodejs/deps/v8/test/mjsunit/es9/object-spread-null-proto.js

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// Copyright 2023 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: --allow-natives-syntax
// Test that cloning the empty object into an object literal with
// `null` prototype works correctly.
(function() {
function clone(o) {
return {...o, __proto__: null};
}
assertNull(Object.getPrototypeOf(clone({})));
assertNull(Object.getPrototypeOf(clone({})));
assertNull(Object.getPrototypeOf(clone({})));
assertNull(Object.getPrototypeOf(clone({})));
%PrepareFunctionForOptimization(clone);
assertNull(Object.getPrototypeOf(clone({})));
assertNull(Object.getPrototypeOf(clone({})));
%OptimizeFunctionOnNextCall(clone);
assertNull(Object.getPrototypeOf(clone({})));
})();