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  * NASHORN-452 : nashorn is able to redefine a global declared variable

    26  *

    27  * @test

    28  * @run

    29  */

    30 

    31 var env = {};

    32 try {

    33     Object.defineProperty(this, 'env', {

    34         get: function() {}

    35     });

    36     fail("#1 should have thrown TypeError");

    37 } catch (e) {

    38     if (! (e instanceof TypeError)) {

    39         fail("#2 TypeError expected, got " + e);

    40     }

    41 }

    42 

    43 var desc = Object.getOwnPropertyDescriptor(this, 'env');

    44 if (desc.configurable) {

    45     fail("#3 global var 'env' is configurable");

    46 }

    47 

    48 (function (x) {

    49     if (delete x) {

    50         fail("#4 can delete function argument");

    51     }

    52 })(3);

    53 

    54 (function (x) {

    55     // use of 'with'

    56     with ({ foo: 2 }) {

    57         if (delete x) {

    58             fail("#5 can delete function argument");

    59         }

    60     }

    61 })(4);

    62 

    63 (function (x, y) {

    64     // use of 'arguments'

    65     var arg = arguments;

    66     if (delete x || delete y) {

    67         fail("#6 can delete function argument");

    68     }

    69 })(5);

    70 

    71 (function (x) {

    72     // use of 'eval'

    73     eval("x");

    74 

    75     if (delete x) {

    76         fail("#7 can delete function argument");

    77     }

    78 })('hello');

    79