vim-patch:7.4.2314

Problem:    No error when deleting an augroup while it's the current one.
Solution:   Disallow deleting an augroup when it's the current one.

de653f0880

src/nvim/fileio.c

@@ -5581,6 +5581,8 @@ static void au_del_group(char_u *name)
   i = au_find_group(name);
   if (i == AUGROUP_ERROR) {      // the group doesn't exist
     EMSG2(_("E367: No such group: \"%s\""), name);
+  } else if (i == current_augroup) {
+    EMSG(_("E936: Cannot delete the current group"));
   } else {
     event_T event;
     AutoPat *ap;

src/nvim/testdir/test_autocmd.vim

@@ -182,13 +182,17 @@ func Test_augroup_warning()
   doautocmd VimEnter
   redir END
   call assert_true(match(res, "W19:") < 0)
+  au! VimEnter
 endfunc
 
 func Test_augroup_deleted()
-  " This caused a crash
+  " This caused a crash before E936 was introduced
   augroup x
+    call assert_fails('augroup! x', 'E936:')
+    au VimEnter * echo
+  augroup end
   augroup! x
-  au VimEnter * echo
-  au VimEnter
+  call assert_true(match(execute('au VimEnter'), "-Deleted-.*VimEnter") >= 0)
+  au! VimEnter
 endfunc
 

src/nvim/version.c

@@ -126,7 +126,7 @@ static int included_patches[] = {
   // 2317,
   // 2316 NA
   // 2315,
-  // 2314,
+  2314,
   2313,
   2312,
   // 2311 NA