LuaInterface.LuaDLL.lua_setfield C# (CSharp) Méthode

        public static extern void lua_setfield(IntPtr luaState, int stackPos, string name);
        [DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]

        public static void OpenLibs(IntPtr L)
        {
            if (!SNG_LUA_DEBUG)
            {
                AddLuaLoader(L);
            }

            LuaDLL.tolua_atpanic(L, Panic);
            LuaDLL.tolua_pushcfunction(L, Print);
            LuaDLL.lua_setglobal(L, "print");
            LuaDLL.tolua_pushcfunction(L, DoFile);
            LuaDLL.lua_setglobal(L, "dofile");
            LuaDLL.tolua_pushcfunction(L, LoadFile);
            LuaDLL.lua_setglobal(L, "loadfile");

            LuaDLL.lua_getglobal(L, "tolua");

            LuaDLL.lua_pushstring(L, "isnull");
            LuaDLL.lua_pushcfunction(L, IsNull);
            LuaDLL.lua_rawset(L, -3);

            LuaDLL.lua_pushstring(L, "typeof");
            LuaDLL.lua_pushcfunction(L, GetClassType);
            LuaDLL.lua_rawset(L, -3);

            LuaDLL.lua_pushstring(L, "tolstring");
            LuaDLL.tolua_pushcfunction(L, BufferToString);
            LuaDLL.lua_rawset(L, -3);

            LuaDLL.lua_pushstring(L, "toarray");
            LuaDLL.tolua_pushcfunction(L, TableToArray);
            LuaDLL.lua_rawset(L, -3);

            //手动模拟gc
            //LuaDLL.lua_pushstring(L, "collect");
            //LuaDLL.lua_pushcfunction(L, Collect);
            //LuaDLL.lua_rawset(L, -3);

            int meta = LuaStatic.GetMetaReference(L, typeof(NullObject));

            LuaDLL.lua_pushstring(L, "null");
            LuaDLL.tolua_pushnewudata(L, meta, 1);
            LuaDLL.lua_rawset(L, -3);
            LuaDLL.lua_pop(L, 1);

            LuaDLL.tolua_pushudata(L, 1);
            LuaDLL.lua_setfield(L, LuaIndexes.LUA_GLOBALSINDEX, "null");

#if UNITY_EDITOR
            GetToLuaInstanceID();
            GetConsoleWindowListView();
#endif
        }