How to add this in .lua

Code:

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CLuaBase lua;        lua.SetGlobalPointer("PRJ", this);
        lua.RegisterFunction("AddLimit", &CProject::AddUpgradeLimit);
        lua.SetGlobalInt32("NOLIMIT", 0);
        lua.SetGlobalInt32("GENERAL", 0);
        lua.SetGlobalInt32("ACCESSORY", 1);
        lua.SetGlobalInt32("ULTIMATE_WEAPON", 2);
        lua.SetGlobalInt32("BARUNA_WEAPON", 3);
        lua.SetGlobalInt32("BARUNA_SUIT", 4);
        lua.SetGlobalInt32("BARUNA_ARMORETC", 5);
        lua.SetGlobalInt32("PIERCING_SUIT", 6);
        lua.SetGlobalInt32("PIERCING_WEAPON", 7);
        lua.SetGlobalInt32("BARUNA_ACCESSORY",8);

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Code:

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        lua_getglobal(luastate,"PRJ");        CProject* ptr = (CProject*)lua_topointer(luastate, -1); // why not practice avoiding globals?
        switch (lua_tointeger(luastate, 1))
        {
                case 0: // GENERAL
                        ptr->m_mapUpgradeCap_General.insert(make_pair(lua_tointeger(luastate, 2), lua_tointeger(luastate, 3)));
                        break;
                case 1: // ACCESSORY
                        ptr->m_mapUpgradeCap_Accessory.insert(make_pair(lua_tointeger(luastate, 2), lua_tointeger(luastate, 3)));
break;

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