From c28f00b101148d17a640fe2a186b23fbe230fbf3 Mon Sep 17 00:00:00 2001
From: zeertzjq <zeertzjq@outlook.com>
Date: Fri, 23 Sep 2022 07:14:32 +0800
Subject: vim-patch:9.0.0550: crash when closing a tabpage and buffer is NULL

Problem:    Crash when closing a tabpage and buffer is NULL.
Solution:   Adjust how autocommands are triggered when closing a window.
            (closes vim/vim#11198, closes vim/vim#11197)
https://github.com/vim/vim/commit/62de54b48d6354d4622ec0b21ffa4cf3cf312505
---
 src/nvim/testdir/test_autocmd.vim | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'src/nvim/testdir')

diff --git a/src/nvim/testdir/test_autocmd.vim b/src/nvim/testdir/test_autocmd.vim
index 1be2d11034..d766256d4b 100644
--- a/src/nvim/testdir/test_autocmd.vim
+++ b/src/nvim/testdir/test_autocmd.vim
@@ -447,6 +447,26 @@ func Test_WinClosed_throws_with_tabs()
   augroup! test-WinClosed
 endfunc
 
+" This used to trigger WinClosed twice for the same window, and the window's
+" buffer was NULL in the second autocommand.
+func Test_WinClosed_switch_tab()
+  edit Xa
+  split Xb
+  split Xc
+  tab split
+  new
+  augroup test-WinClosed
+    autocmd WinClosed * tabprev | bwipe!
+  augroup END
+  close
+  " Check that the tabline has been fully removed
+  call assert_equal([1, 1], win_screenpos(0))
+
+  autocmd! test-WinClosed
+  augroup! test-WinClosed
+  %bwipe!
+endfunc
+
 func s:AddAnAutocmd()
   augroup vimBarTest
     au BufReadCmd * echo 'hello'
-- 
cgit