tests/mozilla/js1_5/Object/regress-137000.js

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  14 * The Original Code is JavaScript Engine testing utilities.
  15 *
  16 * The Initial Developer of the Original Code is Netscape Communications Corp.
  17 * Portions created by the Initial Developer are Copyright (C) 2002
  18 * the Initial Developer. All Rights Reserved.
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  20 * Contributor(s): pschwartau@netscape.com
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  35 *
  36 *
  37 * Date:    03 June 2002
  38 * SUMMARY: Function param or local var with same name as a function property
  39 *
  40 * See http://bugzilla.mozilla.org/show_bug.cgi?id=137000
  41 * See http://bugzilla.mozilla.org/show_bug.cgi?id=138708
  42 * See http://bugzilla.mozilla.org/show_bug.cgi?id=150032
  43 * See http://bugzilla.mozilla.org/show_bug.cgi?id=150859
  44 *
  45 */
  46 //-----------------------------------------------------------------------------
  47 var UBound = 0;
  48 var bug = 137000;
  49 var summary = 'Function param or local var with same name as a function prop';
  50 var status = '';
  51 var statusitems = [];
  52 var actual = '';
  53 var actualvalues = [];
  54 var expect= '';
  55 var expectedvalues = [];
  56
  57
  58 /*
  59  * Note use of 'x' both for the parameter to f,
  60  * and as a property name for |f| as an object
  61  */
  62 function f(x)
  63 {
  64 }
  65
  66 status = inSection(1);
  67 f.x = 12;
  68 actual = f.x;
  69 expect = 12;
  70 addThis();
  71
  72
  73
  74 /*
  75  * A more elaborate example, using the call() method
  76  * to chain constructors from child to parent.
  77  *
  78  * The key point is the use of the same name 'p' for both
  79  * the parameter to the constructor, and as a property name
  80  */
  81 function parentObject(p)
  82 {
  83   this.p = 1;
  84 }
  85
  86 function childObject()
  87 {
  88   parentObject.call(this);
  89 }
  90 childObject.prototype = parentObject;
  91
  92 status = inSection(2);
  93 var objParent = new parentObject();
  94 actual = objParent.p;
  95 expect = 1;
  96 addThis();
  97
  98 status = inSection(3);
  99 var objChild = new childObject();
 100 actual = objChild.p;
 101 expect = 1;
 102 addThis();
 103
 104
 105
 106 /*
 107  * A similar set-up. Here the same name is being used for
 108  * the parameter to both the Base and Child constructors,
 109  */
 110 function Base(id)
 111 {
 112 }
 113
 114 function Child(id)
 115 {
 116   this.prop = id;
 117 }
 118 Child.prototype=Base;
 119
 120 status = inSection(4);
 121 var c1 = new Child('child1');
 122 actual = c1.prop;
 123 expect = 'child1';
 124 addThis();
 125
 126
 127
 128 /*
 129  * Use same identifier as a property name, too -
 130  */
 131 function BaseX(id)
 132 {
 133 }
 134
 135 function ChildX(id)
 136 {
 137   this.id = id;
 138 }
 139 ChildX.prototype=BaseX;
 140
 141 status = inSection(5);
 142 c1 = new ChildX('child1');
 143 actual = c1.id;
 144 expect = 'child1';
 145 addThis();
 146
 147
 148
 149 /*
 150  * From http://bugzilla.mozilla.org/show_bug.cgi?id=150032
 151  *
 152  * Here the same name is being used both for a local variable
 153  * declared in g(), and as a property name for |g| as an object
 154  */
 155 function g()
 156 {
 157   var propA = g.propA;
 158   var propB = g.propC;
 159
 160   this.getVarA = function() {return propA;}
 161   this.getVarB = function() {return propB;}
 162 }
 163 g.propA = 'A';
 164 g.propB = 'B';
 165 g.propC = 'C';
 166 var obj = new g();
 167
 168 status = inSection(6);
 169 actual = obj.getVarA(); // this one was returning 'undefined'
 170 expect = 'A';
 171 addThis();
 172
 173 status = inSection(7);
 174 actual = obj.getVarB(); // this one is easy; it never failed
 175 expect = 'C';
 176 addThis();
 177
 178
 179
 180 /*
 181  * By martin.honnen@t-online.de
 182  * From http://bugzilla.mozilla.org/show_bug.cgi?id=150859
 183  *
 184  * Here the same name is being used for a local var in F
 185  * and as a property name for |F| as an object
 186  *
 187  * Twist: the property is added via another function.
 188  */
 189 function setFProperty(val)
 190 {
 191   F.propA = val;
 192 }
 193
 194 function F()
 195 {
 196  var propA = 'Local variable in F';
 197 }
 198
 199 status = inSection(8);
 200 setFProperty('Hello');
 201 actual = F.propA; // this was returning 'undefined'
 202 expect = 'Hello';
 203 addThis();
 204
 205
 206
 207
 208 //-----------------------------------------------------------------------------
 209 test();
 210 //-----------------------------------------------------------------------------
 211
 212
 213
 214 function addThis()
 215 {
 216   statusitems[UBound] = status;
 217   actualvalues[UBound] = actual;
 218   expectedvalues[UBound] = expect;
 219   UBound++;
 220 }
 221
 222
 223 function test()
 224 {
 225   enterFunc('test');
 226   printBugNumber(bug);
 227   printStatus(summary);
 228
 229   for (var i=0; i<UBound; i++)
 230   {
 231     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
 232   }
 233
 234   exitFunc ('test');
 235 }