From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- js/src/tests/non262/regress/regress-554955-4.js | 37 +++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 js/src/tests/non262/regress/regress-554955-4.js (limited to 'js/src/tests/non262/regress/regress-554955-4.js') diff --git a/js/src/tests/non262/regress/regress-554955-4.js b/js/src/tests/non262/regress/regress-554955-4.js new file mode 100644 index 0000000000..09713c2f97 --- /dev/null +++ b/js/src/tests/non262/regress/regress-554955-4.js @@ -0,0 +1,37 @@ +/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */ +/* + * Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/licenses/publicdomain/ + */ + +function f() { + return function(a) { + // This eval must take place before the block is cloned, when the + // call object is still not marked as a delegate. The scope chain + // purge for the JSOP_DEFVAR will not change the global's shape, + // and the property cache entry will remain valid. + eval(a); + { + let c = 3; + // This eval forces the block to be cloned, so its shape gets + // used as the property cache key shape. + eval(''); + return b; + }; + }; +} + +var b = 1; +var g1 = f(); +var g2 = f(); + +/* Call the lambda once, caching a reference to the global b. */ +g1(''); + +/* + * If this call sees the above cache entry, then it will erroneously use the + * global b. + */ +assertEq(g2('var b=2'), 2); + +reportCompare(true, true); -- cgit v1.2.3