commit 3da696db6ac6103eb8f07cf7be23fa0e12c2419d
author Ernie Rael <errael@raelity.com> Tue Sep 19 20:14:18 2023 +0200
committer Christian Brabandt <cb@256bit.org> Tue Sep 19 20:14:18 2023 +0200
tree 4530141a1e29cfefd403e2edf9c2ebeedcd2e967
parent 346ac1429c5afb23bace295106aea1b305443435

patch 9.0.1911: Vim9: segfault with null object and instanceof()

Problem:  Vim9: segfault with null object and instanceof()
Solution: return early

closes: #13121

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Ernie Rael <errael@raelity.com>

src/testdir/test_vim9_class.vim

diff --git a/src/testdir/test_vim9_class.vim b/src/testdir/test_vim9_class.vim
index fa621b2..1021114 100644
--- a/src/testdir/test_vim9_class.vim
+++ b/src/testdir/test_vim9_class.vim
@@ -3032,6 +3032,10 @@
       assert_true(instanceof(a3, [Base1, Base2, Intf1]))
     enddef
     Foo()
+
+    var o_null: Base1
+    assert_false(instanceof(o_null, Base1))
+
   END
   v9.CheckSourceSuccess(lines)
 enddef