From: Bram Moolenaar <Bram@vim.org>
Date: Mon, 22 Mar 2021 18:43:34 +0000 (+0100)
Subject: patch 8.2.2644: prop_clear() causes a screen update even when nothing changed
X-Git-Tag: v8.2.2644
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=da1dbed0dfac00952b42982f8fffa42c4f5ed0c8;p=vim

patch 8.2.2644: prop_clear() causes a screen update even when nothing changed

Problem:    prop_clear() causes a screen update even when nothing changed.
Solution:   Only redraw when a property was cleared. (Dominique Pellé)
---

diff --git a/src/textprop.c b/src/textprop.c
index d6782342d..59b3d53b6 100644
--- a/src/textprop.c
+++ b/src/textprop.c
@@ -535,6 +535,7 @@ f_prop_clear(typval_T *argvars, typval_T *rettv UNUSED)
     linenr_T end = start;
     linenr_T lnum;
     buf_T    *buf = curbuf;
+    int	    did_clear = FALSE;
 
     if (argvars[1].v_type != VAR_UNKNOWN)
     {
@@ -562,6 +563,7 @@ f_prop_clear(typval_T *argvars, typval_T *rettv UNUSED)
 	len = STRLEN(text) + 1;
 	if ((size_t)buf->b_ml.ml_line_len > len)
 	{
+	    did_clear = TRUE;
 	    if (!(buf->b_ml.ml_flags & ML_LINE_DIRTY))
 	    {
 		char_u *newtext = vim_strsave(text);
@@ -575,7 +577,8 @@ f_prop_clear(typval_T *argvars, typval_T *rettv UNUSED)
 	    buf->b_ml.ml_line_len = (int)len;
 	}
     }
-    redraw_buf_later(buf, NOT_VALID);
+    if (did_clear)
+	redraw_buf_later(buf, NOT_VALID);
 }
 
 /*
diff --git a/src/version.c b/src/version.c
index 3d69e9c31..6fda8fcda 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2644,
 /**/
     2643,
 /**/