3 files changed, 13 insertions, 9 deletions
diff --git a/src/lua/modules/graphics/font.cpp b/src/lua/modules/graphics/font.cpp
index 926f2cc..042eb19 100644
--- a/src/lua/modules/graphics/font.cpp
+++ b/src/lua/modules/graphics/font.cpp
@@ -10,6 +10,8 @@ namespace lua
 
     using namespace jin::graphics;
 
+	typedef Ref<Font>& FontRef;
+
     static int l_gc(lua_State* L)
     {
         Proxy* proxy = (Proxy*)luax_checktype(L, 1, JIN_GRAPHICS_FONT);
@@ -20,7 +22,7 @@ namespace lua
     static int l_box(lua_State* L)
     {
         Proxy* proxy = (Proxy*)luax_newinstance(L, JIN_GRAPHICS_FONT, sizeof(Proxy));
-		Ref<Font>& ref = proxy->getRef<Font>();
+		FontRef ref = proxy->getRef<Font>();
         const char* text = luax_checkstring(L, 2); 
         int fheight = luax_checknumber(L, 3);
         int spacing = luax_checknumber(L, 4);
diff --git a/src/lua/modules/graphics/image.cpp b/src/lua/modules/graphics/image.cpp
index 5824660..3caff16 100644
--- a/src/lua/modules/graphics/image.cpp
+++ b/src/lua/modules/graphics/image.cpp
@@ -11,8 +11,9 @@ namespace lua
 	using namespace jin::graphics;
 
 	typedef Texture Image;
+	typedef Ref<Image>& ImageRef;
 
-    static inline Ref<Image>& checkImage(lua_State* L)
+    static inline ImageRef checkImage(lua_State* L)
     {
         Proxy* proxy = (Proxy*)luax_checktype(L, 1, JIN_GRAPHICS_IMAGE);
 		return proxy->getRef<Image>();
@@ -20,21 +21,21 @@ namespace lua
 
     static int l_getWidth(lua_State* L)
     {
-		Ref<Image>& ref = checkImage(L);
+		ImageRef ref = checkImage(L);
         luax_pushnumber(L, ref->getWidth()); 
         return 1; 
     }
 
     static int l_getHeight(lua_State *L)
     {
-		Ref<Image>& ref = checkImage(L);
+		ImageRef ref = checkImage(L);
         luax_pushnumber(L, ref->getHeight());
         return 1;
     }
 
     static int l_getPixel(lua_State* L)
     {
-		Ref<Image>& ref = checkImage(L);
+		ImageRef ref = checkImage(L);
         int x = luax_checknumber(L, 2); 
         int y = luax_checknumber(L, 3);
         color c = ref->getPixel(x, y); 
@@ -47,7 +48,7 @@ namespace lua
 
     static int l_setAnchor(lua_State* L)
     {
-		Ref<Image>& ref = checkImage(L);
+		ImageRef ref = checkImage(L);
         int x = luax_checknumber(L, 2); 
         int y = luax_checknumber(L, 3); 
         ref->setAnchor(x, y);
@@ -56,7 +57,7 @@ namespace lua
 
     static int l_getSize(lua_State* L)
     {
-		Ref<Image>& ref = checkImage(L);
+		ImageRef ref = checkImage(L);
         luax_pushnumber(L, ref->getWidth());
         luax_pushnumber(L, ref->getHeight());
         return 2;
diff --git a/src/lua/modules/graphics/jsl.cpp b/src/lua/modules/graphics/jsl.cpp
index ccd9ebd..58de46a 100644
--- a/src/lua/modules/graphics/jsl.cpp
+++ b/src/lua/modules/graphics/jsl.cpp
@@ -11,8 +11,9 @@ namespace lua
 	using namespace jin::graphics;
 
 	typedef Texture Image;
+	typedef Ref<JSLProgram>& JSLRef;
 
-    static inline Ref<JSLProgram>& checkJSLProgram(lua_State* L)
+    static inline JSLRef checkJSLProgram(lua_State* L)
     {
         Proxy* proxy = (Proxy*)luax_checktype(L, 1, JIN_GRAPHICS_SHADER);
 		return proxy->getRef<JSLProgram>();
@@ -49,7 +50,7 @@ namespace lua
     */
     static int l_send(lua_State* L)
     {
-		Ref<JSLProgram>& ref = checkJSLProgram(L);
+		JSLRef ref = checkJSLProgram(L);
         // number Image Texel
         const char* typestr = luax_checkstring(L, 2);
         // variable name