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comparison: js/src/tests/js1_5/Object/regress-192105.js
js/src/tests/js1_5/Object/regress-192105.js
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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 * | |
| 8 * Date: 06 February 2003 | |
| 9 * SUMMARY: Using |instanceof| to check if function is called as a constructor | |
| 10 * | |
| 11 * See http://bugzilla.mozilla.org/show_bug.cgi?id=192105 | |
| 12 * | |
| 13 */ | |
| 14 //----------------------------------------------------------------------------- | |
| 15 var UBound = 0; | |
| 16 var BUGNUMBER = 192105; | |
| 17 var summary = 'Using |instanceof| to check if f() is called as constructor'; | |
| 18 var status = ''; | |
| 19 var statusitems = []; | |
| 20 var actual = ''; | |
| 21 var actualvalues = []; | |
| 22 var expect= ''; | |
| 23 var expectedvalues = []; | |
| 24 | |
| 25 | |
| 26 /* | |
| 27 * This function is the heart of the test. It sets the result | |
| 28 * variable |actual|, which we will compare against |expect|. | |
| 29 * | |
| 30 * Note |actual| will be set to |true| or |false| according | |
| 31 * to whether or not this function is called as a constructor; | |
| 32 * i.e. whether it is called via the |new| keyword or not - | |
| 33 */ | |
| 34 function f() | |
| 35 { | |
| 36 actual = (this instanceof f); | |
| 37 } | |
| 38 | |
| 39 | |
| 40 /* | |
| 41 * Call f as a constructor from global scope | |
| 42 */ | |
| 43 status = inSection(1); | |
| 44 new f(); // sets |actual| | |
| 45 expect = true; | |
| 46 addThis(); | |
| 47 | |
| 48 /* | |
| 49 * Now, not as a constructor | |
| 50 */ | |
| 51 status = inSection(2); | |
| 52 f(); // sets |actual| | |
| 53 expect = false; | |
| 54 addThis(); | |
| 55 | |
| 56 | |
| 57 /* | |
| 58 * Call f as a constructor from function scope | |
| 59 */ | |
| 60 function F() | |
| 61 { | |
| 62 new f(); | |
| 63 } | |
| 64 status = inSection(3); | |
| 65 F(); // sets |actual| | |
| 66 expect = true; | |
| 67 addThis(); | |
| 68 | |
| 69 /* | |
| 70 * Now, not as a constructor | |
| 71 */ | |
| 72 function G() | |
| 73 { | |
| 74 f(); | |
| 75 } | |
| 76 status = inSection(4); | |
| 77 G(); // sets |actual| | |
| 78 expect = false; | |
| 79 addThis(); | |
| 80 | |
| 81 | |
| 82 /* | |
| 83 * Now make F() and G() methods of an object | |
| 84 */ | |
| 85 var obj = {F:F, G:G}; | |
| 86 status = inSection(5); | |
| 87 obj.F(); // sets |actual| | |
| 88 expect = true; | |
| 89 addThis(); | |
| 90 | |
| 91 status = inSection(6); | |
| 92 obj.G(); // sets |actual| | |
| 93 expect = false; | |
| 94 addThis(); | |
| 95 | |
| 96 | |
| 97 /* | |
| 98 * Now call F() and G() from yet other functions, and use eval() | |
| 99 */ | |
| 100 function A() | |
| 101 { | |
| 102 eval('F();'); | |
| 103 } | |
| 104 status = inSection(7); | |
| 105 A(); // sets |actual| | |
| 106 expect = true; | |
| 107 addThis(); | |
| 108 | |
| 109 | |
| 110 function B() | |
| 111 { | |
| 112 eval('G();'); | |
| 113 } | |
| 114 status = inSection(8); | |
| 115 B(); // sets |actual| | |
| 116 expect = false; | |
| 117 addThis(); | |
| 118 | |
| 119 | |
| 120 | |
| 121 | |
| 122 //----------------------------------------------------------------------------- | |
| 123 test(); | |
| 124 //----------------------------------------------------------------------------- | |
| 125 | |
| 126 | |
| 127 | |
| 128 function addThis() | |
| 129 { | |
| 130 statusitems[UBound] = status; | |
| 131 actualvalues[UBound] = actual; | |
| 132 expectedvalues[UBound] = expect; | |
| 133 UBound++; | |
| 134 } | |
| 135 | |
| 136 | |
| 137 function test() | |
| 138 { | |
| 139 enterFunc('test'); | |
| 140 printBugNumber(BUGNUMBER); | |
| 141 printStatus(summary); | |
| 142 | |
| 143 for (var i=0; i<UBound; i++) | |
| 144 { | |
| 145 reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]); | |
| 146 } | |
| 147 | |
| 148 exitFunc ('test'); | |
| 149 } |
