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

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  38
  39 /*
  40  * Date: 2001-07-03
  41  *
  42  * SUMMARY:  Testing scope with nested functions
  43  *
  44  * From correspondence with Christopher Oliver <coliver@mminternet.com>:
  45  *
  46  * > Running this test with Rhino produces the following exception:
  47  * >
  48  * > uncaught JavaScript exception: undefined: Cannot find default value for
  49  * > object. (line 3)
  50  * >
  51  * > This is due to a bug in org.mozilla.javascript.NativeCall which doesn't
  52  * > implement toString or valueOf or override getDefaultValue.
  53  * > However, even after I hacked in an implementation of getDefaultValue in
  54  * > NativeCall, Rhino still produces a different result then SpiderMonkey:
  55  * >
  56  * > [object Call]
  57  * > [object Object]
  58  * > [object Call]
  59  *
  60  * Note the results should be:
  61  *
  62  *   [object global]
  63  *   [object Object]
  64  *   [object global]
  65  *
  66  * This is what we are checking for in this testcase -
  67  */
  68 //-----------------------------------------------------------------------------
  69 var gTestfile = 'scope-003.js';
  70 var UBound = 0;
  71 var BUGNUMBER = '(none)';
  72 var summary = 'Testing scope with nested functions';
  73 var statprefix = 'Section ';
  74 var statsuffix = ' of test -';
  75 var self = this; // capture a reference to the global object;
  76 var cnGlobal = self.toString();
  77 var cnObject = (new Object).toString();
  78 var statusitems = [];
  79 var actualvalues = [];
  80 var expectedvalues = [];
  81
  82
  83 function a()
  84 {
  85   function b()
  86   {
  87     capture(this.toString());
  88   }
  89
  90   this.c = function()
  91     {
  92       capture(this.toString());
  93       b();
  94     }
  95
  96   b();
  97 }
  98
  99
 100 var obj = new a();  // captures actualvalues[0]
 101 obj.c();            // captures actualvalues[1], actualvalues[2]
 102
 103
 104 // The values we expect - see introduction above -
 105 expectedvalues[0] = cnGlobal;
 106 expectedvalues[1] = cnObject;
 107 expectedvalues[2] = cnGlobal;
 108
 109
 110
 111 //-----------------------------------------------------------------------------
 112 test();
 113 //-----------------------------------------------------------------------------
 114
 115
 116
 117 function capture(val)
 118 {
 119   actualvalues[UBound] = val;
 120   statusitems[UBound] = getStatus(UBound);
 121   UBound++;
 122 }
 123
 124
 125 function test()
 126 {
 127   enterFunc ('test');
 128   printBugNumber(BUGNUMBER);
 129   printStatus (summary);
 130
 131   for (var i=0; i<UBound; i++)
 132   {
 133     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
 134   }
 135
 136   exitFunc ('test');
 137 }
 138
 139
 140 function getStatus(i)
 141 {
 142   return statprefix + i + statsuffix;
 143 }