1 /*

     2  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /**

    25  * JDK-8024255: When a keyword is used as object property name, the property can not be deleted

    26  *

    27  * @test

    28  * @run

    29  */

    30 

    31 function check(obj, name) {

    32     var desc = Object.getOwnPropertyDescriptor(obj, name);

    33     if (! desc.configurable) {

    34         fail("Property " + name + " is not configurable");

    35     }

    36 

    37     if (! (delete obj[name])) {

    38         fail("Property " + name + " can not be deleted");

    39     }

    40 }

    41 

    42 var obj = {

    43     default: 344,

    44     in: 'hello',

    45     if: false,

    46     class: 4.223

    47 }

    48 

    49 for (var p in obj) {

    50     check(obj, p);

    51 }