[Gambas-user] Gambas bug?

[Emil Lenngren]

Ok, I understand your issue. But unfortunately, I don't know any good way
how to do it in Gambas.
In C++ there are private inheritance that solves the problem, but Gambas
only has public inheritance.

Maybe Benoit can find out some way how to inherit only "some" of the
symbols from a base class, if many Gambas programmers want that, and
disallow such an inherited object to be cast to an ancestor class?

/Emil

2012/2/11 Fabián Flores Vadell <fabianfloresvadell at ...626...>

> 2012/2/10 Emil Lenngren <emil.lenngren at ...626...>
>
> > So what you want is to extend the array class with some extra methods?
> > Just use
> > Inherits Person[]
> > in the PersonList class ;)
> >
>
> Did you read the code and comments?
>
> Not at all. I don't want use inheritance because I won't all methods and
> properties from Array[] in the PeopleList interfaz. Hence, I have to use
> aggregation (composition, delegation).
>
> If I use inheritance, the clients of PeopleList could do bad things or
> things that have no sense (as the case), e.g.
>
> PeopleList.Fill
> PeopleList.Push
> PeopleList.Pop
>
> This isn't the best example. But if you think about a minute, you will
> catch it.
>
> Do not focus on the example, because really, what I want isn't to add to a
> class methods from an array (that's just an example). I looking for a
> design pattern that allows me to solve a typical problem.
>
> That problem could be described as "How to add methods from a helper object
> without have to rewrite a wrapper for each method (with just a call within)
> in the host class?".
>
> --
> Fabián Flores Vadell
> www.comoprogramarcongambas.blogspot.com
> www.speedbooksargentina.blogspot.com
>
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