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khash: rename kh_oid_t to kh_oid_set

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khash lets us define a hash as either a map or a set (i.e., with no
"value" type). For the oid maps we define, "oid" is the set and
"oid_map" is the map. As the bug in the previous commit shows, it's easy
to pick the wrong one.

So let's make the names more distinct: "oid_set" and "oid_map".

An alternative naming scheme would be to actually name the type after
the key/value types. So e.g., "oid" _would_ be the set, since it has no
value type. And "oid_map" would become "oid_void" or similar (and
"oid_pos" becomes "oid_int"). That's better in some ways: it's more
regular, and a given map type can be more reasily reused in multiple
contexts (e.g., something storing an "int" that isn't a "pos"). But it's
also slightly less descriptive.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King
2019-06-20 03:41:28 -04:00
committed by Junio C Hamano
parent 4ed43d16d7
commit 8fbb558af4
3 changed files with 9 additions and 9 deletions
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12
oidset.c
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@@ -5,33 +5,33 @@ void oidset_init(struct oidset *set, size_t initial_size)
{
memset(&set->set, 0, sizeof(set->set));
if (initial_size)
kh_resize_oid(&set->set, initial_size);
kh_resize_oid_set(&set->set, initial_size);
}
int oidset_contains(const struct oidset *set, const struct object_id *oid)
{
khiter_t pos = kh_get_oid(&set->set, *oid);
khiter_t pos = kh_get_oid_set(&set->set, *oid);
return pos != kh_end(&set->set);
}
int oidset_insert(struct oidset *set, const struct object_id *oid)
{
int added;
kh_put_oid(&set->set, *oid, &added);
kh_put_oid_set(&set->set, *oid, &added);
return !added;
}
int oidset_remove(struct oidset *set, const struct object_id *oid)
{
khiter_t pos = kh_get_oid(&set->set, *oid);
khiter_t pos = kh_get_oid_set(&set->set, *oid);
if (pos == kh_end(&set->set))
return 0;
kh_del_oid(&set->set, pos);
kh_del_oid_set(&set->set, pos);
return 1;
}
void oidset_clear(struct oidset *set)
{
kh_release_oid(&set->set);
kh_release_oid_set(&set->set);
oidset_init(set, 0);
}