patch 9.1.1447: completion: crash when backspacing with fuzzy completion
Commit:
https://github.com/vim/vim/commit/91782b4aeb62043739138903f30cad2fe79238ab
Author: zeertzjq <zeert...@outlook.com>
Date: Tue Jun 10 20:06:53 2025 +0200
patch 9.1.1447: completion: crash when backspacing with fuzzy completion
Problem: completion: crash when backspacing with fuzzy completion
Solution: Don't dereference compl_first_match when it's NULL
(zeertzjq).
related: neovim/neovim#34419
closes: #17511
Signed-off-by: zeertzjq <zeert...@outlook.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>
diff --git a/src/insexpand.c b/src/insexpand.c
index 889ea3611..9ee73e15e 100644
--- a/src/insexpand.c
+++ b/src/insexpand.c
@@ -1415,17 +1415,19 @@ cp_compare_nearest(const void* a, const void* b)
static void
set_fuzzy_score(void)
{
- if (compl_leader.string != NULL && compl_leader.length > 0)
- {
- compl_T *compl = compl_first_match;
+ compl_T *compl;
- do
- {
- compl->cp_score = fuzzy_match_str(compl->cp_str.string,
- compl_leader.string);
- compl = compl->cp_next;
- } while (compl != NULL && !is_first_match(compl));
- }
+ if (!compl_first_match
+ || compl_leader.string == NULL || compl_leader.length == 0)
+ return;
+
+ compl = compl_first_match;
+ do
+ {
+ compl->cp_score = fuzzy_match_str(compl->cp_str.string,
+ compl_leader.string);
+ compl = compl->cp_next;
+ } while (compl != NULL && !is_first_match(compl));
}
/*
@@ -1434,11 +1436,12 @@ set_fuzzy_score(void)
static void
sort_compl_match_list(int (*compare)(const void *, const void *))
{
- compl_T *compl = compl_first_match->cp_prev;
+ compl_T *compl;
if (!compl_first_match || is_first_match(compl_first_match->cp_next))
return;
+ compl = compl_first_match->cp_prev;
ins_compl_make_linear();
if (compl_shows_dir_forward())
{
diff --git a/src/testdir/test_ins_complete.vim
b/src/testdir/test_ins_complete.vim
index 33c87cb2c..155c5b796 100644
--- a/src/testdir/test_ins_complete.vim
+++ b/src/testdir/test_ins_complete.vim
@@ -4754,4 +4754,28 @@ func Test_complete_unloaded_buf_refresh_always()
delfunc TestComplete
endfunc
+func Test_complete_fuzzy_omnifunc_backspace()
+ let g:do_complete = v:false
+ func Omni_test(findstart, base)
+ if a:findstart
+ let g:do_complete = !g:do_complete
+ endif
+ if g:do_complete
+ return a:findstart ? 0 : [#{word: a:base .. 'def'}, #{word: a:base ..
'ghi'}]
+ endif
+ return a:findstart ? -3 : {}
+ endfunc
+
+ new
+ setlocal omnifunc=Omni_test
+ setlocal completeopt=menuone,fuzzy,noinsert
+ call setline(1, 'abc')
+ call feedkeys("A\<C-X>\<C-O>\<BS>\<Esc>0", 'tx!')
+ call assert_equal('ab', getline(1))
+
+ bwipe!
+ delfunc Omni_test
+ unlet g:do_complete
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab nofoldenable
diff --git a/src/version.c b/src/version.c
index b384859de..05be1d862 100644
--- a/src/version.c
+++ b/src/version.c
@@ -709,6 +709,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
+/**/
+ 1447,
/**/
1446,
/**/
--
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