patch 8.2.4987: after deletion a small fold may be closable
Problem: After deletion a small fold may be closable.
Solution: Check for a reverse range. (Brandon Simmons, closes #10457)
diff --git a/src/fold.c b/src/fold.c
index 7c51557..26a4a98 100644
--- a/src/fold.c
+++ b/src/fold.c
@@ -829,10 +829,18 @@
if (wp->w_folds.ga_len > 0)
{
- // Mark all folds from top to bot as maybe-small.
- (void)foldFind(&wp->w_folds, top, &fp);
+ linenr_T maybe_small_start = top;
+ linenr_T maybe_small_end = bot;
+
+ // Mark all folds from top to bot (or bot to top) as maybe-small.
+ if (top > bot)
+ {
+ maybe_small_start = bot;
+ maybe_small_end = top;
+ }
+ (void)foldFind(&wp->w_folds, maybe_small_start, &fp);
while (fp < (fold_T *)wp->w_folds.ga_data + wp->w_folds.ga_len
- && fp->fd_top < bot)
+ && fp->fd_top <= maybe_small_end)
{
fp->fd_small = MAYBE;
++fp;
@@ -2165,7 +2173,7 @@
bot = wp->w_buffer->b_ml.ml_line_count;
wp->w_foldinvalid = FALSE;
- // Mark all folds a maybe-small.
+ // Mark all folds as maybe-small.
setSmallMaybe(&wp->w_folds);
}