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/jit-test/tests/auto-regress/bug1448582-4.js | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 js/src/jit-test/tests/auto-regress/bug1448582-4.js (limited to 'js/src/jit-test/tests/auto-regress/bug1448582-4.js') diff --git a/js/src/jit-test/tests/auto-regress/bug1448582-4.js b/js/src/jit-test/tests/auto-regress/bug1448582-4.js new file mode 100644 index 0000000000..a806e4a2e8 --- /dev/null +++ b/js/src/jit-test/tests/auto-regress/bug1448582-4.js @@ -0,0 +1,22 @@ +// Overview: +// - The outer function is an IIFE which gets marked as a singleton. +// - The |fn| inner function is then also marked as a singleton. +// - The |self| inner function uses |Function.prototype.caller| to reinvoke the outer function. +// +// When we reinvoke outer, we end up cloning a previously reused, i.e. non-cloned, +// function. + +(function(index) { + var fn = function(a) {}; + + // Accessing |.length| sets the resolved-length flag, which should not be + // copied over to the function clone. + assertEq(fn.length, 1); + + // Reinvoke the IIFE through |Function.prototype.caller|. + if (index === 0) { + (function self() { + self.caller(1); + })(); + } +})(0); -- cgit v1.2.3