Internal code tweaks

* Registry access code utility macros
* CONFIG_REGKEY and LOOKUP_REGKEY are now lightuserdata instead of strings
* Stack checking debug macros improvements

1 files changed, 2 insertions, 3 deletions

diff --git a/src/lanes_private.h b/src/lanes_private.h
index 1adfa31..16c178d 100644
--- a/src/lanes_private.h
+++ b/src/lanes_private.h
@@ -96,9 +96,8 @@ static inline Lane* get_lane_from_registry( lua_State* L)
 {
         Lane* s;
         STACK_GROW( L, 1);
-        STACK_CHECK( L);
-        push_unique_key( L, CANCEL_TEST_KEY);
-        lua_rawget( L, LUA_REGISTRYINDEX);
+        STACK_CHECK( L, 0);
+        REGISTRY_GET( L, CANCEL_TEST_KEY);
         s = lua_touserdata( L, -1);     // lightuserdata (true 's_lane' pointer) / nil
         lua_pop( L, 1);
         STACK_END( L, 0);