add object_as_type helper for casting objects

[thirdparty/git.git] / tag.c

diff --git a/tag.c b/tag.c
index 7b07921b30641994ab3a877b6b377c5ce1f40149..82d841bf2df0990f124ca9020673352124f20561 100644 (file)
--- a/tag.c
+++ b/tag.c
@@ -40,15 +40,8 @@ struct tag *lookup_tag(const unsigned char *sha1)
 {
        struct object *obj = lookup_object(sha1);
        if (!obj)
-               return create_object(sha1, OBJ_TAG, alloc_tag_node());
-       if (!obj->type)
-               obj->type = OBJ_TAG;
-       if (obj->type != OBJ_TAG) {
-               error("Object %s is a %s, not a tag",
-                     sha1_to_hex(sha1), typename(obj->type));
-               return NULL;
-       }
-       return (struct tag *) obj;
+               return create_object(sha1, alloc_tag_node());
+       return object_as_type(obj, OBJ_TAG, 0);
 }
 
 static unsigned long parse_tag_date(const char *buf, const char *tail)