patch 8.2.3974: Vim9: LISTAPPEND instruction does not check for a locked list
Problem: Vim9: LISTAPPEND instruction does not check for a locked list.
Solution: Check whether the list is locked. (closes #9452)
diff --git a/src/vim9execute.c b/src/vim9execute.c
index a0b1fe4..81f3578 100644
--- a/src/vim9execute.c
+++ b/src/vim9execute.c
@@ -3911,12 +3911,14 @@
list_T *l = tv1->vval.v_list;
// add an item to a list
+ SOURCING_LNUM = iptr->isn_lnum;
if (l == NULL)
{
- SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_cannot_add_to_null_list));
goto on_error;
}
+ if (value_check_lock(l->lv_lock, NULL, FALSE))
+ goto on_error;
if (list_append_tv(l, tv2) == FAIL)
goto theend;
clear_tv(tv2);