The Tor Browser / file comparison
comparison: js/src/tests/js1_5/Regress/regress-103602.js
js/src/tests/js1_5/Regress/regress-103602.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:105ea0ac1ccc |
|---|---|
| 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: 10 Jan 2002 | |
| 9 * SUMMARY: Reassignment to a const is NOT an error per ECMA | |
| 10 * See http://bugzilla.mozilla.org/show_bug.cgi?id=103602 | |
| 11 * | |
| 12 * ------- Additional Comment #4 From Brendan Eich 2002-01-10 15:30 ------- | |
| 13 * | |
| 14 * That's per ECMA (don't blame me, I fought for what Netscape always did: | |
| 15 * throw an error [could be a catchable exception since 1.3]). | |
| 16 * Readonly properties, when set by assignment, are not changed, but no error | |
| 17 * or exception is thrown. The value of the assignment expression is the value | |
| 18 * of the r.h.s. | |
| 19 * | |
| 20 * If you want a *strict* warning, pls change the summary of this bug | |
| 21 * to say so. | |
| 22 */ | |
| 23 //----------------------------------------------------------------------------- | |
| 24 var UBound = 0; | |
| 25 var BUGNUMBER = 103602; | |
| 26 var summary = 'Reassignment to a const is NOT an error per ECMA'; | |
| 27 var status = ''; | |
| 28 var statusitems = []; | |
| 29 var actual = ''; | |
| 30 var actualvalues = []; | |
| 31 var expect= ''; | |
| 32 var expectedvalues = []; | |
| 33 var cnFAIL_1 = 'Redeclaration of a const FAILED to cause an error'; | |
| 34 var cnFAIL_2 = 'Reassigning to a const caused an ERROR! It should not!!!'; | |
| 35 var sEval = ''; | |
| 36 | |
| 37 /* | |
| 38 * Not every implementation supports const (a non-ECMA extension) | |
| 39 * For example, Rhino does not; it would generate a complile-time error. | |
| 40 * So we have to hide this so it will be detected at run-time instead. | |
| 41 */ | |
| 42 try | |
| 43 { | |
| 44 sEval = 'const one = 1'; | |
| 45 eval(sEval); | |
| 46 } | |
| 47 catch(e) | |
| 48 { | |
| 49 quit(); // if const is not supported, this testcase is over - | |
| 50 } | |
| 51 | |
| 52 | |
| 53 status = inSection(1); | |
| 54 try | |
| 55 { | |
| 56 /* | |
| 57 * Redeclaration of const should be a compile-time error. | |
| 58 * Hide so it will be detected at run-time. | |
| 59 */ | |
| 60 sEval = 'const one = 2;'; | |
| 61 eval(sEval); | |
| 62 | |
| 63 expect = ''; // we shouldn't reach this line | |
| 64 actual = cnFAIL_1; | |
| 65 addThis(); | |
| 66 } | |
| 67 catch(e) | |
| 68 { | |
| 69 // good - we should be here. | |
| 70 actual = expect; | |
| 71 addThis(); | |
| 72 } | |
| 73 | |
| 74 | |
| 75 status = inSection(2); | |
| 76 try | |
| 77 { | |
| 78 /* | |
| 79 * Reassignment to a const should be NOT be an error, per ECMA. | |
| 80 */ | |
| 81 one = 2; | |
| 82 actual = expect; // good: no error was generated | |
| 83 addThis(); | |
| 84 | |
| 85 // although no error, the assignment should have been ignored - | |
| 86 status = inSection(3); | |
| 87 actual = one; | |
| 88 expect = 1; | |
| 89 addThis(); | |
| 90 | |
| 91 // the value of the EXPRESSION, however, is the value of the r.h.s. - | |
| 92 status = inSection(4); | |
| 93 actual = (one = 2); | |
| 94 expect = 2; | |
| 95 addThis(); | |
| 96 } | |
| 97 | |
| 98 catch(e) | |
| 99 { | |
| 100 // BAD - we shouldn't be here | |
| 101 expect = ''; | |
| 102 actual = cnFAIL_2; | |
| 103 addThis(); | |
| 104 } | |
| 105 | |
| 106 | |
| 107 | |
| 108 //----------------------------------------------------------------------------- | |
| 109 test(); | |
| 110 //----------------------------------------------------------------------------- | |
| 111 | |
| 112 | |
| 113 function addThis() | |
| 114 { | |
| 115 statusitems[UBound] = status; | |
| 116 actualvalues[UBound] = actual; | |
| 117 expectedvalues[UBound] = expect; | |
| 118 UBound++; | |
| 119 } | |
| 120 | |
| 121 | |
| 122 function test() | |
| 123 { | |
| 124 enterFunc ('test'); | |
| 125 printBugNumber(BUGNUMBER); | |
| 126 printStatus (summary); | |
| 127 | |
| 128 for (var i = 0; i < UBound; i++) | |
| 129 { | |
| 130 reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]); | |
| 131 } | |
| 132 | |
| 133 exitFunc ('test'); | |
| 134 } |
