mirror of
https://github.com/tc39/test262.git
synced 2025-11-03 21:24:30 +01:00
7298a38552
sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
13 lines
384 B
JavaScript
13 lines
384 B
JavaScript
// Copyright 2015 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 Bar() { }
|
|
function Baz() { }
|
|
Baz.prototype = { __proto__: new Bar() }
|
|
var x = new Baz();
|
|
function foo(y) { return y instanceof Bar; }
|
|
assertTrue(foo(x));
|
|
Baz.prototype.__proto__ = null;
|
|
assertFalse(foo(x));
|