patch 8.2.2781: add() silently skips when adding to null list or blob
Problem: Add() silently skips when adding to null list or blob.
Solution: Give an error in Vim9 script. Allocate blob when it is NULL like
with list and dict.
diff --git a/src/evalvars.c b/src/evalvars.c
index ebfc42b..9952ffc 100644
--- a/src/evalvars.c
+++ b/src/evalvars.c
@@ -2662,6 +2662,12 @@
if (tv->vval.v_list != NULL)
++tv->vval.v_list->lv_refcount;
}
+ else if (tv->v_type == VAR_BLOB && tv->vval.v_blob == NULL)
+ {
+ tv->vval.v_blob = blob_alloc();
+ if (tv->vval.v_blob != NULL)
+ ++tv->vval.v_blob->bv_refcount;
+ }
copy_tv(tv, rettv);
}
}