diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/Function/regress-222029-002.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/Function/regress-222029-002.js | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/js/src/tests/non262/Function/regress-222029-002.js b/js/src/tests/non262/Function/regress-222029-002.js new file mode 100644 index 0000000000..96f68a2661 --- /dev/null +++ b/js/src/tests/non262/Function/regress-222029-002.js @@ -0,0 +1,132 @@ +/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * + * Date: 13 Oct 2003 + * SUMMARY: Make our f.caller property match IE's wrt f.apply and f.call + * See http://bugzilla.mozilla.org/show_bug.cgi?id=222029 + * + * Below, when gg calls f via |f.call|, we have this call chain: + * + * calls calls + * gg() ---------> Function.prototype.call() ---------> f() + * + * + * The question this bug addresses is, "What should we say |f.caller| is?" + * + * Before this fix, SpiderMonkey said it was |Function.prototype.call|. + * After this fix, SpiderMonkey emulates IE and says |gg| instead. + * + */ +//----------------------------------------------------------------------------- +var UBound = 0; +var BUGNUMBER = 222029; +var summary = "Make our f.caller property match IE's wrt f.apply and f.call"; +var status = ''; +var statusitems = []; +var actual = ''; +var actualvalues = []; +var expect= ''; +var expectedvalues = []; + +/* + * Try to confuse the engine by adding a |p| property to everything! + */ +var p = 'global'; +var o = {p:'object'}; + + +function f(obj) +{ + return f.caller.p ; +} + + +/* + * Call |f| directly + */ +function g(obj) +{ + var p = 'local'; + return f(obj); +} +g.p = "hello"; + + +/* + * Call |f| via |f.call| + */ +function gg(obj) +{ + var p = 'local'; + return f.call(obj, obj); +} +gg.p = "hello"; + + +/* + * Call |f| via |f.apply| + */ +function ggg(obj) +{ + var p = 'local'; + return f.apply(obj, [obj]); +} +ggg.p = "hello"; + + +/* + * Shadow |p| on |Function.prototype.call|, |Function.prototype.apply|. + * In Sections 2 and 3 below, we no longer expect to recover this value - + */ +Function.prototype.call.p = "goodbye"; +Function.prototype.apply.p = "goodbye"; + + + +status = inSection(1); +actual = g(o); +expect = "hello"; +addThis(); + +status = inSection(2); +actual = gg(o); +expect = "hello"; +addThis(); + +status = inSection(3); +actual = ggg(o); +expect = "hello"; +addThis(); + + + + +//----------------------------------------------------------------------------- +test(); +//----------------------------------------------------------------------------- + + + +function addThis() +{ + statusitems[UBound] = status; + actualvalues[UBound] = actual; + expectedvalues[UBound] = expect; + UBound++; +} + + +function test() +{ + printBugNumber(BUGNUMBER); + printStatus(summary); + + for (var i=0; i<UBound; i++) + { + reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]); + } +} |