registry mechanism

1 files changed, 7 insertions, 1 deletions

diff --git a/lua.h b/lua.h
index f2cc880a..c2c77a80 100644
--- a/lua.h
+++ b/lua.h
@@ -1,5 +1,5 @@
 /*
-** $Id: lua.h,v 1.74 2000/10/09 15:46:43 roberto Exp roberto $
+** $Id: lua.h,v 1.75 2000/10/20 16:39:03 roberto Exp roberto $
 ** Lua - An Extensible Extension Language
 ** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil
 ** e-mail: lua@tecgraf.puc-rio.br
@@ -29,12 +29,16 @@
 #define LUA_ERRORMESSAGE        "_ERRORMESSAGE"
 
 
+/* pre-defined references */
 #define LUA_NOREF       (-2)
 #define LUA_REFNIL      (-1)
+#define LUA_REFREGISTRY 0
 
+/* pre-defined tags */
 #define LUA_ANYTAG      (-1)
 #define LUA_NOTAG       (-2)
 
+
 #define LUA_MULTRET     (-1)
 
 
@@ -198,6 +202,8 @@ LUA_API void  lua_concat (lua_State *L, int n);
 #define lua_isnil(L,n)          (lua_type(L,n) == LUA_TNIL)
 #define lua_isnull(L,n)         (lua_type(L,n) == LUA_TNONE)
 
+#define lua_getregistry(L)      lua_getref(L, LUA_REFREGISTRY)
+
 #endif