Function GetCppInstance

Plugins/UnLua/Source/UnLua/Private/LuaCore.cpp:455–464

* Get a cpp instance's address */

 * Get a cpp instance's address
 */
void* GetCppInstance(lua_State *L, int32 Index)
{
    bool bTwoLvlPtr = false;
    void *Userdata = GetUserdata(L, Index, &bTwoLvlPtr);
    if (Userdata)
    {
        return bTwoLvlPtr ? *((void**)Userdata) : Userdata;         // return instance's address
    }
    return nullptr;
}

/**
 * Get a cpp instance's address, fast path