270253c4e2
PR-URL: https://github.com/nodejs/node/pull/40907 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>
26 lines
555 B
JavaScript
26 lines
555 B
JavaScript
// Copyright 2021 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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function test(obj) {
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class Base {
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constructor() {
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return obj;
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}
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}
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class C extends Base {
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#x = 1;
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}
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let c = new C();
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c = new C();
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}
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assertThrows(
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() => test(globalThis),
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TypeError, "Cannot initialize #x twice on the same object");
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assertThrows(
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() => test(Object.create(null)),
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TypeError, "Cannot initialize #x twice on the same object");
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