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authorBrandon Simmons <simmsbra@gmail.com>2022-05-20 18:25:21 +0100
committerBram Moolenaar <Bram@vim.org>2022-05-20 18:25:21 +0100
commit3fcccf94e8bc142d2c79c3b62087145896df6b36 (patch)
tree166b3c7d3b4be078dab7f7b843de6187c6cfb625
parent8a83ffdc43a4fc904f686864a24a5b0f240df593 (diff)
patch 8.2.4987: after deletion a small fold may be closablev8.2.4987
Problem: After deletion a small fold may be closable. Solution: Check for a reverse range. (Brandon Simmons, closes #10457)
-rw-r--r--src/fold.c16
-rw-r--r--src/testdir/test_fold.vim29
-rw-r--r--src/version.c2
3 files changed, 43 insertions, 4 deletions
diff --git a/src/fold.c b/src/fold.c
index 7c51557073..26a4a98a76 100644
--- a/src/fold.c
+++ b/src/fold.c
@@ -829,10 +829,18 @@ foldUpdate(win_T *wp, linenr_T top, linenr_T bot)
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 @@ foldUpdateIEMS(win_T *wp, linenr_T top, linenr_T bot)
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);
}
diff --git a/src/testdir/test_fold.vim b/src/testdir/test_fold.vim
index 52185dca43..b0d07db151 100644
--- a/src/testdir/test_fold.vim
+++ b/src/testdir/test_fold.vim
@@ -1479,4 +1479,33 @@ func Test_indent_append_under_blank_line()
bw!
endfunc
+" Make sure that when you delete 1 line of a fold whose length is 2 lines, the
+" fold can't be closed since its length (1) is now less than foldminlines.
+func Test_indent_one_line_fold_close()
+ let lines =<< trim END
+ line 1
+ line 2
+ line 3
+ END
+
+ new
+ setlocal sw=2 foldmethod=indent
+ call setline(1, lines)
+ " open all folds, delete line, then close all folds
+ normal zR
+ 3delete
+ normal zM
+ call assert_equal(-1, foldclosed(2)) " the fold should not be closed
+
+ " Now do the same, but delete line 2 this time; this covers different code.
+ " (Combining this code with the above code doesn't expose both bugs.)
+ 1,$delete
+ call setline(1, lines)
+ normal zR
+ 2delete
+ normal zM
+ call assert_equal(-1, foldclosed(2))
+ bw!
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/version.c b/src/version.c
index b098a73900..708f4a8ed3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 4987,
+/**/
4986,
/**/
4985,