Jeff King [off-list ref] writes:
The get_worktree_path() function is used to populate the %(worktreepath)
value, but it has never used its "atom" parameter since it was added in
2582083fa1 (ref-filter: add worktreepath atom, 2019-04-28).
Normally we'd use the atom struct to cache any work we do, but in this
case there's a global hashmap that does that caching already. So we can
just drop the unused parameter.
If this were part of a codepath that were more table-driven, we
might have needed to use uniform function signature across these
helper functions, but it is not the case, and this solution indeed
is much nicer than marking it UNUSED.
quoted hunk
diff --git a/ref-filter.c b/ref-filter.c
index f8203c6b05..434a28c830 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -1822,7 +1822,7 @@ static void lazy_init_worktree_map(void)
populate_worktree_map(&(ref_to_worktree_map.map), ref_to_worktree_map.worktrees);
}
-static char *get_worktree_path(const struct used_atom *atom, const struct ref_array_item *ref)
+static char *get_worktree_path(const struct ref_array_item *ref)
{
struct hashmap_entry entry, *e;
struct ref_to_worktree_entry *lookup_result;@@ -1881,7 +1881,7 @@ static int populate_value(struct ref_array_item *ref, struct strbuf *err)
refname = get_refname(atom, ref);
else if (atom_type == ATOM_WORKTREEPATH) {
if (ref->kind == FILTER_REFS_BRANCHES)
- v->s = get_worktree_path(atom, ref);
+ v->s = get_worktree_path(ref);
else
v->s = xstrdup("");
continue;