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