t4015: modernise style

diff --git a/tree.c b/tree.c
index 549e5883a01bb31010861aad991993772d238309..bb02c1caa4ff6a8af40b89498de3af3381272999 100644 (file)
--- a/tree.c
+++ b/tree.c
@@ -183,15 +183,8 @@ struct tree *lookup_tree(const unsigned char *sha1)
 {
        struct object *obj = lookup_object(sha1);
        if (!obj)
-               return create_object(sha1, OBJ_TREE, alloc_tree_node());
-       if (!obj->type)
-               obj->type = OBJ_TREE;
-       if (obj->type != OBJ_TREE) {
-               error("Object %s is a %s, not a tree",
-                     sha1_to_hex(sha1), typename(obj->type));
-               return NULL;
-       }
-       return (struct tree *) obj;
+               return create_object(sha1, alloc_tree_node());
+       return object_as_type(obj, OBJ_TREE, 0);
 }
 
 int parse_tree_buffer(struct tree *item, void *buffer, unsigned long size)
@@ -225,6 +218,14 @@ int parse_tree(struct tree *item)
        return parse_tree_buffer(item, buffer, size);
 }
 
+void free_tree_buffer(struct tree *tree)
+{
+       free(tree->buffer);
+       tree->buffer = NULL;
+       tree->size = 0;
+       tree->object.parsed = 0;
+}
+
 struct tree *parse_tree_indirect(const unsigned char *sha1)
 {
        struct object *obj = parse_object(sha1);