tor-browser

The Tor Browser
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scope-003.js (2506B)

      1 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
      2 /* This Source Code Form is subject to the terms of the Mozilla Public
      3 * License, v. 2.0. If a copy of the MPL was not distributed with this
      4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      5 
      6 /*
      7 * Date: 2001-07-03
      8 *
      9 * SUMMARY:  Testing scope with nested functions
     10 *
     11 * From correspondence with Christopher Oliver <coliver@mminternet.com>:
     12 *
     13 * > Running this test with Rhino produces the following exception:
     14 * >
     15 * > uncaught JavaScript exception: undefined: Cannot find default value for
     16 * > object. (line 3)
     17 * >
     18 * > This is due to a bug in org.mozilla.javascript.NativeCall which doesn't
     19 * > implement toString or valueOf or override getDefaultValue.
     20 * > However, even after I hacked in an implementation of getDefaultValue in
     21 * > NativeCall, Rhino still produces a different result then SpiderMonkey:
     22 * >
     23 * > [object Call]
     24 * > [object Object]
     25 * > [object Call]
     26 *
     27 * Note the results should be:
     28 *
     29 *   [object global]
     30 *   [object Object]
     31 *   [object global]
     32 *
     33 * This is what we are checking for in this testcase -
     34 */
     35 //-----------------------------------------------------------------------------
     36 var UBound = 0;
     37 var BUGNUMBER = '(none)';
     38 var summary = 'Testing scope with nested functions';
     39 var statprefix = 'Section ';
     40 var statsuffix = ' of test -';
     41 var self = this; // capture a reference to the global object;
     42 var cnGlobal = self.toString();
     43 var cnObject = (new Object).toString();
     44 var statusitems = [];
     45 var actualvalues = [];
     46 var expectedvalues = [];
     47 
     48 
     49 function a()
     50 {
     51  function b()
     52  {
     53    capture(this.toString());
     54  }
     55 
     56  this.c = function()
     57    {
     58      capture(this.toString());
     59      b();
     60    }
     61 
     62  b();
     63 }
     64 
     65 
     66 var obj = new a();  // captures actualvalues[0]
     67 obj.c();            // captures actualvalues[1], actualvalues[2]
     68 
     69 
     70 // The values we expect - see introduction above -
     71 expectedvalues[0] = cnGlobal;
     72 expectedvalues[1] = cnObject;
     73 expectedvalues[2] = cnGlobal;
     74 
     75 
     76 
     77 //-----------------------------------------------------------------------------
     78 test();
     79 //-----------------------------------------------------------------------------
     80 
     81 
     82 
     83 function capture(val)
     84 {
     85  actualvalues[UBound] = val;
     86  statusitems[UBound] = getStatus(UBound);
     87  UBound++;
     88 }
     89 
     90 
     91 function test()
     92 {
     93  printBugNumber(BUGNUMBER);
     94  printStatus (summary);
     95 
     96  for (var i=0; i<UBound; i++)
     97  {
     98    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
     99  }
    100 }
    101 
    102 
    103 function getStatus(i)
    104 {
    105  return statprefix + i + statsuffix;
    106 }