alloc: add repository argument to alloc_tree_node

This is a small mechanical change; it doesn't change the
implementation to handle repositories other than the_repository yet.
Use a macro to catch callers passing a repository other than
the_repository at compile time.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/cache.h b/cache.h
index 2258e61127..1717d07a2c 100644
--- a/cache.h
+++ b/cache.h
@@ -1766,7 +1766,8 @@ void encode_85(char *buf, const unsigned char *data, int bytes);
 /* alloc.c */
 #define alloc_blob_node(r) alloc_blob_node_##r()
 extern void *alloc_blob_node_the_repository(void);
-extern void *alloc_tree_node(void);
+#define alloc_tree_node(r) alloc_tree_node_##r()
+extern void *alloc_tree_node_the_repository(void);
 extern void *alloc_commit_node(void);
 extern void *alloc_tag_node(void);
 extern void *alloc_object_node(void);