patch 8.2.2325: Vim9: crash if map() changes the item type
Problem: Vim9: crash if map() changes the item type.
Solution: Check that the item type is still OK. (closes #7652)
Fix problem with mapnew() on range list.
diff --git a/src/list.c b/src/list.c
index 4531e58..2b44eba 100644
--- a/src/list.c
+++ b/src/list.c
@@ -2188,10 +2188,13 @@
int stride = l->lv_u.nonmat.lv_stride;
// List from range(): loop over the numbers
- l->lv_first = NULL;
- l->lv_u.mat.lv_last = NULL;
- l->lv_len = 0;
- l->lv_u.mat.lv_idx_item = NULL;
+ if (filtermap != FILTERMAP_MAPNEW)
+ {
+ l->lv_first = NULL;
+ l->lv_u.mat.lv_last = NULL;
+ l->lv_len = 0;
+ l->lv_u.mat.lv_idx_item = NULL;
+ }
for (idx = 0; idx < len; ++idx)
{