Use a better check for existence of the NERDTree buffer. - nerdtree

commit dc349a072ae4abc4747b23d7ab4085c5a1afe589
parent e47e588705bd7d205a3b5a60ac7090c9a2504ba2
Author: Phil Runninger (mac) <prunninger@virtualhold.com>
Date:   Tue,  6 Mar 2018 08:41:06 -0500

Use a better check for existence of the NERDTree buffer.

If the user wipes out or deletes (:bw or :bd) the NERDTree buffer, there
is still a tab variable that hangs onto the name of that now-missing
buffer. Checking only that variable is not enough to decide whether to
create a new NERDTree or use the existing one. Fortunately, there
already is a function with a more complete check: ExistsForTab()

Diffstat:
M lib/nerdtree/creator.vim  | 2 +-

1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/nerdtree/creator.vim b/lib/nerdtree/creator.vim
@@ -185,7 +185,7 @@ function! s:Creator._createTreeWin()
     let splitLocation = g:NERDTreeWinPos ==# "left" ? "topleft " : "botright "
     let splitSize = g:NERDTreeWinSize
 
-    if !exists('t:NERDTreeBufName')
+    if !g:NERDTree.ExistsForTab()
         let t:NERDTreeBufName = self._nextBufferName()
         silent! exec splitLocation . 'vertical ' . splitSize . ' new'
         silent! exec "edit " . t:NERDTreeBufName