luacudata.h

#ifndef LUACUDATA_H
#define LUACUDATA_H

#include <string>
#include <lua.hpp>
#include "luacscript.h"


namespace LuaC {
    template<class T>
    class UdataLib {
    public:
        static T* Allocate(lua_State *l){
            void *block = lua_newuserdata(l, sizeof(T));
            T *obj = new(block) T();
            AddMetaTable(l, -1);
            return obj;
        }
        static void Push(lua_State *l, const T *obj){
            T *o = Allocate(l);
            *o = *obj;
        }
        static void Copy(lua_State *from, int idx, lua_State *too){
            T *obj = Check(from, idx);
            Push(too, obj);
        }
        static T* Check(lua_State *l, int i){
            return (T*)luaL_checkudata(l, i, mMetaTable.c_str());
        }

    private:
        static void AddMetaTable(lua_State *l, int i){
            LuaScriptLib::Add(l, i, mMetaTable);
        }

    private:
        static const std::string mMetaTable;
    };
    template<class T>
    const std::string UdataLib<T>::mMetaTable = "";
}

#endif