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patch 9.1.1323: b:undo_ftplugin not executed when re-using buffer

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Problem:  b:undo_ftplugin not executed when re-using buffer
          (archy3)
Solution: explicitly execute b:undo_ftplugin in buflist_new() when
          re-using the current buffer

fixes: #17113
closes: #17133

Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Christian Brabandt
2025-04-19 11:14:11 +02:00
parent 8167799651
commit baa8c90cc0
5 changed files with 49 additions and 2 deletions
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15
src/buffer.c
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@@ -72,6 +72,20 @@ static int buf_free_count = 0;
static int top_file_num = 1; // highest file number
static garray_T buf_reuse = GA_EMPTY; // file numbers to recycle
static void
trigger_undo_ftplugin(buf_T *buf, win_T *win)
{
window_layout_lock();
buf->b_locked++;
win->w_locked = TRUE;
// b:undo_ftplugin may be set, undo it
do_cmdline_cmd((char_u*)"if exists('b:undo_ftplugin') | :legacy :exe \
b:undo_ftplugin | endif");
buf->b_locked--;
win->w_locked = FALSE;
window_layout_unlock();
}
/*
* Calculate the percentage that `part` is of the `whole`.
*/
@@ -2206,6 +2220,7 @@ buflist_new(
if ((flags & BLN_CURBUF) && curbuf_reusable())
{
buf = curbuf;
trigger_undo_ftplugin(buf, curwin);
// It's like this buffer is deleted. Watch out for autocommands that
// change curbuf! If that happens, allocate a new buffer anyway.
buf_freeall(buf, BFA_WIPE | BFA_DEL);