tests/mozilla/js1_5/Scope/scope-003.js

   1 /*
   2 * The contents of this file are subject to the Netscape Public
   3 * License Version 1.1 (the "License"); you may not use this file
   4 * except in compliance with the License. You may obtain a copy of
   5 * the License at http://www.mozilla.org/NPL/
   6 *
   7 * Software distributed under the License is distributed on an
   8 * "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either expressed
   9 * or implied. See the License for the specific language governing
  10 * rights and limitations under the License.
  11 *
  12 * The Original Code is mozilla.org code.
  13 *
  14 * The Initial Developer of the Original Code is Netscape
  15 * Communications Corporation.  Portions created by Netscape are
  16 * Copyright (C) 1998 Netscape Communications Corporation.
  17 * All Rights Reserved.
  18 *
  19 * Contributor(s): coliver@mminternet.com, pschwartau@netscape.com
  20 * Date: 2001-07-03
  21 *
  22 * SUMMARY:  Testing scope with nested functions
  23 *
  24 * From correspondence with Christopher Oliver <coliver@mminternet.com>:
  25 *
  26 * > Running this test with Rhino produces the following exception:
  27 * >
  28 * > uncaught JavaScript exception: undefined: Cannot find default value for
  29 * > object. (line 3)
  30 * >
  31 * > This is due to a bug in org.mozilla.javascript.NativeCall which doesn't
  32 * > implement toString or valueOf or override getDefaultValue.
  33 * > However, even after I hacked in an implementation of getDefaultValue in
  34 * > NativeCall, Rhino still produces a different result then SpiderMonkey:
  35 * >
  36 * > [object Call]
  37 * > [object Object]
  38 * > [object Call]
  39 *
  40 * Note the results should be:
  41 *
  42 *   [object global]
  43 *   [object Object]
  44 *   [object global]
  45 *
  46 * This is what we are checking for in this testcase -
  47 */
  48 //-----------------------------------------------------------------------------
  49 var UBound = 0;
  50 var bug = '(none)';
  51 var summary = 'Testing scope with nested functions';
  52 var statprefix = 'Section ';
  53 var statsuffix = ' of test -';
  54 var self = this; // capture a reference to the global object;
  55 var cnGlobal = self.toString();
  56 var cnObject = (new Object).toString();
  57 var statusitems = [];
  58 var actualvalues = [];
  59 var expectedvalues = [];
  60
  61
  62 function a()
  63 {
  64   function b()
  65   {
  66     capture(this.toString());
  67   }
  68
  69   this.c = function()
  70   {
  71     capture(this.toString());
  72     b();
  73   }
  74
  75   b();
  76 }
  77
  78
  79 var obj = new a();  // captures actualvalues[0]
  80 obj.c();            // captures actualvalues[1], actualvalues[2]
  81
  82
  83 // The values we expect - see introduction above -
  84 expectedvalues[0] = cnGlobal;
  85 expectedvalues[1] = cnObject;
  86 expectedvalues[2] = cnGlobal;
  87
  88
  89
  90 //-----------------------------------------------------------------------------
  91 test();
  92 //-----------------------------------------------------------------------------
  93
  94
  95
  96 function capture(val)
  97 {
  98   actualvalues[UBound] = val;
  99   statusitems[UBound] = getStatus(UBound);
 100   UBound++;
 101 }
 102
 103
 104 function test()
 105 {
 106   enterFunc ('test');
 107   printBugNumber (bug);
 108   printStatus (summary);
 109
 110   for (var i=0; i<UBound; i++)
 111   {
 112     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
 113   }
 114
 115   exitFunc ('test');
 116 }
 117
 118
 119 function getStatus(i)
 120 {
 121   return statprefix + i + statsuffix;
 122 }