72 lines
1.8 KiB
JavaScript
72 lines
1.8 KiB
JavaScript
/*
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* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* JDK-8023368: Instance __proto__ property should exist and be writable.
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*
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* @test
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* @run
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*/
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// function to force same callsites
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function check(obj) {
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print(obj.func());
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print(obj.x);
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print(obj.toString());
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}
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function Func() {
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}
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Func.prototype.func = function() {
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return "Func.prototype.func";
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}
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Func.prototype.x = "hello";
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var obj = new Func();
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var obj2 = Object.create(obj);
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// check direct and indirect __proto__ change
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check(obj);
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check(obj2);
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obj.__proto__ = {
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func: function() {
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return "obj.__proto__.func @ " + __LINE__;
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},
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x: 344
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};
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check(obj);
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check(obj2);
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// check indirect (1 and 2 levels) __proto__ function change
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obj.__proto__.__proto__ = {
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toString: function() {
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return "new object.toString";
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}
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};
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check(obj);
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check(obj2);
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