Added lua_datum to wrap the common task of retaining references to Lua objects in the Lua registry.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@7477 c06c8d41-db1a-0410-9941-cceddc491573

1 files changed, 3 insertions, 0 deletions

diff --git a/crawl-ref/source/mapmark.h b/crawl-ref/source/mapmark.h
index 3efc40e591..07d89331be 100644
--- a/crawl-ref/source/mapmark.h
+++ b/crawl-ref/source/mapmark.h
@@ -16,6 +16,7 @@
 #include "luadgn.h"
 #include <map>
 #include <string>
+#include <memory>
 
 //////////////////////////////////////////////////////////////////////////
 // Map markers
@@ -117,6 +118,8 @@ public:
         throw (std::string);
 private:
     bool initialised;
+    std::auto_ptr<lua_datum> marker_table;
+
 private:
     void check_register_table();
     bool get_table() const;