airblade#816 do not modify previewpopup when it does not exist

devoc09 · Feb 19, 2022 · e433d5d · e433d5d
1 parent d845704
commit e433d5d
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/autoload/gitgutter/hunk.vim b/autoload/gitgutter/hunk.vim
@@ -466,7 +466,9 @@ function! s:open_hunk_preview_window()
     endif
   endif
 
-  let [previewpopup, &previewpopup] = [&previewpopup, '']
+  if exists('&previewpopup')
+    let [previewpopup, &previewpopup] = [&previewpopup, '']
+  endif
 
   " Specifying where to open the preview window can lead to the cursor going
   " to an unexpected window when the preview window is closed (#769).
@@ -487,7 +489,9 @@ function! s:open_hunk_preview_window()
     nnoremap <buffer> <silent> <Esc> :<C-U>wincmd p<Bar>pclose<CR>
   endif
 
-  let &previewpopup=previewpopup
+  if exists('&previewpopup')
+    let &previewpopup=previewpopup
+  endif
 endfunction