neovim

commit e8450ef2368bd2d80149bf98a34571bc92fb2aba
parent 3d707e6f14b7db64b3510f58bf9321c71163f552
Author: zeertzjq <zeertzjq@outlook.com>
Date:   Tue, 26 Nov 2024 22:55:05 +0800

vim-patch:9.1.0889: Possible unnecessary redraw after adding/deleting lines (#31356)

Problem:  Possible unnecessary redraw after adding/deleting lines.
Solution: Check b_mod_set before using b_mod_xlines to avoid using stale
          b_mod_xlines value (zeertzjq).

closes: vim/vim#16124

https://github.com/vim/vim/commit/9f25a3a237156889df3df78dbd8f12ee6059e332
Diffstat:
M
src/nvim/drawscreen.c
 | 
5
+++--

1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/src/nvim/drawscreen.c b/src/nvim/drawscreen.c
@@ -2072,7 +2072,7 @@ static void win_update(win_T *wp)
                         // match in fixed position might need redraw
                         // if lines were inserted or deleted
                         || (wp->w_match_head != NULL
-                            && buf->b_mod_xlines != 0)))))
+                            && buf->b_mod_set && buf->b_mod_xlines != 0)))))
         || lnum == wp->w_cursorline
         || lnum == wp->w_last_cursorline) {
       if (lnum == mod_top) {
@@ -2291,7 +2291,8 @@ static void win_update(win_T *wp)
       // - 'number' is set and below inserted/deleted lines, or
       // - 'relativenumber' is set and cursor moved vertically,
       // the text doesn't need to be redrawn, but the number column does.
-      if ((wp->w_p_nu && mod_top != 0 && lnum >= mod_bot && buf->b_mod_xlines != 0)
+      if ((wp->w_p_nu && mod_top != 0 && lnum >= mod_bot
+           && buf->b_mod_set && buf->b_mod_xlines != 0)
           || (wp->w_p_rnu && wp->w_last_cursor_lnum_rnu != wp->w_cursor.lnum)) {
         foldinfo_T info = wp->w_p_cul && lnum == wp->w_cursor.lnum
                           ? cursorline_fi : fold_info(wp, lnum);