object-file: treat cached_object values as const

The cached-object API maps oids to in-memory entries. Once inserted,
these entries should be immutable. Let's return them from the
find_cached_object() call with a const tag to make this clear.

Suggested-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2024-11-18 04:55:19 -05:00 committed by Junio C Hamano
parent 9202ffcf10
commit e37feea00b

View File

@ -327,14 +327,14 @@ static struct cached_object_entry {
} *cached_objects;
static int cached_object_nr, cached_object_alloc;
static struct cached_object *find_cached_object(const struct object_id *oid)
static const struct cached_object *find_cached_object(const struct object_id *oid)
{
static struct cached_object empty_tree = {
static const struct cached_object empty_tree = {
.type = OBJ_TREE,
.buf = "",
};
int i;
struct cached_object_entry *co = cached_objects;
const struct cached_object_entry *co = cached_objects;
for (i = 0; i < cached_object_nr; i++, co++) {
if (oideq(&co->oid, oid))
@ -1629,7 +1629,7 @@ static int do_oid_object_info_extended(struct repository *r,
struct object_info *oi, unsigned flags)
{
static struct object_info blank_oi = OBJECT_INFO_INIT;
struct cached_object *co;
const struct cached_object *co;
struct pack_entry e;
int rtype;
const struct object_id *real = oid;