diff --git a/builtin/commit-tree.c b/builtin/commit-tree.c
index e5bdf57b1e..ecf42191da 100644
--- a/builtin/commit-tree.c
+++ b/builtin/commit-tree.c
@@ -58,7 +58,7 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
usage(commit_tree_usage);
if (get_oid_commit(argv[i], &oid))
die("Not a valid object name %s", argv[i]);
- assert_sha1_type(oid.hash, OBJ_COMMIT);
+ assert_oid_type(&oid, OBJ_COMMIT);
new_parent(lookup_commit(&oid), &parents);
continue;
}diff --git a/cache.h b/cache.h
index f29ff43bbd..b1a117e404 100644
--- a/cache.h
+++ b/cache.h
@@ -1275,7 +1275,7 @@ extern int has_object_file_with_flags(const struct object_id *oid, int flags);
*/
extern int has_loose_object_nonlocal(const unsigned char *sha1);
-extern void assert_sha1_type(const unsigned char *sha1, enum object_type expect);
+extern void assert_oid_type(const struct object_id *oid, enum object_type expect);
/* Helper to check and "touch" a file */
extern int check_and_freshen_file(const char *fn, int freshen);
diff --git a/commit.c b/commit.c
index e8a49b9c84..b9f028976f 100644
--- a/commit.c
+++ b/commit.c
@@ -1517,7 +1517,7 @@ int commit_tree_extended(const char *msg, size_t msg_len,
int encoding_is_utf8;
struct strbuf buffer;
- assert_sha1_type(tree->hash, OBJ_TREE);
+ assert_oid_type(tree, OBJ_TREE);
if (memchr(msg, '\0', msg_len))
return error("a NUL byte in commit log message not allowed.");diff --git a/sha1_file.c b/sha1_file.c
index 5dc85122c3..fa69d86309 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -1966,13 +1966,13 @@ int read_pack_header(int fd, struct pack_header *header)
return 0;
}
-void assert_sha1_type(const unsigned char *sha1, enum object_type expect)
+void assert_oid_type(const struct object_id *oid, enum object_type expect)
{
- enum object_type type = sha1_object_info(sha1, NULL);
+ enum object_type type = sha1_object_info(oid->hash, NULL);
if (type < 0)
- die("%s is not a valid object", sha1_to_hex(sha1));
+ die("%s is not a valid object", oid_to_hex(oid));
if (type != expect)
- die("%s is not a valid '%s' object", sha1_to_hex(sha1),
+ die("%s is not a valid '%s' object", oid_to_hex(oid),
typename(expect));
}