The Tor Browser / file comparison
comparison: js/src/tests/js1_5/Function/regress-222029-001.js
js/src/tests/js1_5/Function/regress-222029-001.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:e84a24179607 |
|---|---|
| 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: 13 Oct 2003 | |
| 9 * SUMMARY: Make our f.caller property match IE's wrt f.apply and f.call | |
| 10 * See http://bugzilla.mozilla.org/show_bug.cgi?id=222029 | |
| 11 * | |
| 12 * Below, when gg calls f via |f.call|, we have this call chain: | |
| 13 * | |
| 14 * calls calls | |
| 15 * gg() ---------> Function.prototype.call() ---------> f() | |
| 16 * | |
| 17 * | |
| 18 * The question this bug addresses is, "What should we say |f.caller| is?" | |
| 19 * | |
| 20 * Before this fix, SpiderMonkey said it was |Function.prototype.call|. | |
| 21 * After this fix, SpiderMonkey emulates IE and says |gg| instead. | |
| 22 * | |
| 23 */ | |
| 24 //----------------------------------------------------------------------------- | |
| 25 var UBound = 0; | |
| 26 var BUGNUMBER = 222029; | |
| 27 var summary = "Make our f.caller property match IE's wrt f.apply and f.call"; | |
| 28 var status = ''; | |
| 29 var statusitems = []; | |
| 30 var actual = ''; | |
| 31 var actualvalues = []; | |
| 32 var expect= ''; | |
| 33 var expectedvalues = []; | |
| 34 | |
| 35 | |
| 36 function f() | |
| 37 { | |
| 38 return f.caller.p ; | |
| 39 } | |
| 40 | |
| 41 | |
| 42 /* | |
| 43 * Call |f| directly | |
| 44 */ | |
| 45 function g() | |
| 46 { | |
| 47 return f(); | |
| 48 } | |
| 49 g.p = "hello"; | |
| 50 | |
| 51 | |
| 52 /* | |
| 53 * Call |f| via |f.call| | |
| 54 */ | |
| 55 function gg() | |
| 56 { | |
| 57 return f.call(this); | |
| 58 } | |
| 59 gg.p = "hello"; | |
| 60 | |
| 61 | |
| 62 /* | |
| 63 * Call |f| via |f.apply| | |
| 64 */ | |
| 65 function ggg() | |
| 66 { | |
| 67 return f.apply(this); | |
| 68 } | |
| 69 ggg.p = "hello"; | |
| 70 | |
| 71 | |
| 72 /* | |
| 73 * Shadow |p| on |Function.prototype.call|, |Function.prototype.apply|. | |
| 74 * In Sections 2 and 3 below, we no longer expect to recover this value - | |
| 75 */ | |
| 76 Function.prototype.call.p = "goodbye"; | |
| 77 Function.prototype.apply.p = "goodbye"; | |
| 78 | |
| 79 | |
| 80 | |
| 81 status = inSection(1); | |
| 82 actual = g(); | |
| 83 expect = "hello"; | |
| 84 addThis(); | |
| 85 | |
| 86 status = inSection(2); | |
| 87 actual = gg(); | |
| 88 expect = "hello"; | |
| 89 addThis(); | |
| 90 | |
| 91 status = inSection(3); | |
| 92 actual = ggg(); | |
| 93 expect = "hello"; | |
| 94 addThis(); | |
| 95 | |
| 96 | |
| 97 | |
| 98 | |
| 99 //----------------------------------------------------------------------------- | |
| 100 test(); | |
| 101 //----------------------------------------------------------------------------- | |
| 102 | |
| 103 | |
| 104 | |
| 105 function addThis() | |
| 106 { | |
| 107 statusitems[UBound] = status; | |
| 108 actualvalues[UBound] = actual; | |
| 109 expectedvalues[UBound] = expect; | |
| 110 UBound++; | |
| 111 } | |
| 112 | |
| 113 | |
| 114 function test() | |
| 115 { | |
| 116 enterFunc('test'); | |
| 117 printBugNumber(BUGNUMBER); | |
| 118 printStatus(summary); | |
| 119 | |
| 120 for (var i=0; i<UBound; i++) | |
| 121 { | |
| 122 reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]); | |
| 123 } | |
| 124 | |
| 125 exitFunc ('test'); | |
| 126 } |
