nashorn/test/script/basic/extensibility.js
author hannesw
Wed, 25 Jun 2014 14:36:24 +0200
changeset 25243 7a1edca6ce94
parent 24778 2ff5d7041566
permissions -rw-r--r--
8048079: Persistent code store is broken after optimistic types merge Reviewed-by: sundar, jlaskey, attila
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/*
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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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 * Basic checks for Object.preventExtensible.
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 *
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 * @test
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 * @run
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 */
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// after preventExtenssions, we can't add new properties but
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// can modifiy existing properties.
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var obj = { num: 45.0 };
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print("extensible? " + Object.isExtensible(obj));
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Object.preventExtensions(obj);
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print("extensible? " + Object.isExtensible(obj));
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obj['bar'] = "hello";
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print(obj.bar);
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obj.num = Math.PI;
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print(obj.num);
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obj.foo = 55;
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print(obj.foo);
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obj.num = Math.E;
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print(obj.num);