>>>Even if you set toObject = this in your code, toObject will not be expanded in your program.
>>>
>>Why not? And this is not it.
>
>toObject = this && this is fine
>m.toObject.objects && this is NOT fine, you must use macro expansion here, something like &toobject..objects

No, why should I? This is a container, I can refer its objects collection. In other words, this method works fine without passing a parameter.