commit fe6fb267e6ee5c5da2f41889e4e0e0ac5bf4b89d
author Bram Moolenaar <Bram@vim.org> Mon Jan 24 18:16:12 2022 +0000
committer Bram Moolenaar <Bram@vim.org> Mon Jan 24 18:16:12 2022 +0000
tree d37a272112c2a7b6f399d2210a9aa68b82eafe05
parent 46634350740d062fc7e555fd6c5d4d43798d4df7

patch 8.2.4206: condition with many "(" causes a crash

Problem:    Condition with many "(" causes a crash.
Solution:   Limit recursion to 1000.

src/testdir/test_eval_stuff.vim

diff --git a/src/testdir/test_eval_stuff.vim b/src/testdir/test_eval_stuff.vim
index ff6d695..6043ed9 100644
--- a/src/testdir/test_eval_stuff.vim
+++ b/src/testdir/test_eval_stuff.vim
@@ -590,4 +590,9 @@
   unlet g:gvar
 endfunc
 
+func Test_deep_recursion()
+  " this was running out of stack
+  call assert_fails("exe 'if ' .. repeat('(', 1002)", 'E1169: Expression too recursive: ((')
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab