neovim

commit dcdb7dca6aa7e335b2e8f339d3bb76da1c9d3b6e
parent a66b12378b1431f886c9b4235160abb171bcb05a
Author: zeertzjq <zeertzjq@outlook.com>
Date:   Wed,  5 Oct 2022 21:27:58 +0800

vim-patch:8.2.3884: crash when clearing the argument list while using it

Problem:    Crash when clearing the argument list while using it.
Solution:   Lock the argument list for ":all".
https://github.com/vim/vim/commit/6f98371532fcff911b462d51bc64f2ce8a6ae682

Diffstat:
M
src/nvim/arglist.c
 | 
4
++++
M
src/nvim/testdir/test_arglist.vim
 | 
7
+++++++

2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/src/nvim/arglist.c b/src/nvim/arglist.c
@@ -818,6 +818,7 @@ static void do_arg_all(int count, int forceit, int keep_tabs)
   tabpage_T *old_curtab, *last_curtab;
   win_T *new_curwin = NULL;
   tabpage_T *new_curtab = NULL;
+  bool prev_arglist_locked = arglist_locked;
 
   assert(firstwin != NULL);  // satisfy coverity
 
@@ -839,6 +840,7 @@ static void do_arg_all(int count, int forceit, int keep_tabs)
   // watch out for its size to be changed.
   alist = curwin->w_alist;
   alist->al_refcount++;
+  arglist_locked = true;
 
   old_curwin = curwin;
   old_curtab = curtab;
@@ -1034,8 +1036,10 @@ static void do_arg_all(int count, int forceit, int keep_tabs)
 
   // Remove the "lock" on the argument list.
   alist_unlink(alist);
+  arglist_locked = prev_arglist_locked;
 
   autocmd_no_enter--;
+
   // restore last referenced tabpage's curwin
   if (last_curtab != new_curtab) {
     if (valid_tabpage(last_curtab)) {
diff --git a/src/nvim/testdir/test_arglist.vim b/src/nvim/testdir/test_arglist.vim
@@ -607,4 +607,11 @@ func Test_all_not_allowed_from_cmdwin()
   au! BufEnter
 endfunc
 
+func Test_clear_arglist_in_all()
+  n 0 00 000 0000 00000 000000
+  au! * 0 n 0
+  all
+  au! *
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab