From: Robert Dober <robert.dober@...>
Date: 2007-07-26T02:38:30+09:00
Subject: Re: Help: Get list of modules which are included in the class

On 7/25/07, dohzya <dohzya@gmail.com> wrote:
> Le mercredi 25 juillet 2007 � 22:58 +0900, Robert Dober a �crit :
> > > You're right, but it can be fixed :)
> > no it cannot :(, look at C4 below
> > > ---
> > > class Class
> > >   def included_modules
> > >     c = self
> > >     all = c.ancestors - [c]
> > >     bad = all.map {|a|
> > >       a.ancestors - [a]
> > >     }
> > >     # Module#superclass doesn't exist
> > >     bad << c.superclass if c.is_a? Class
> > >     all - bad.flatten
> > >   end
> > > end
> > >
> > > module M1; end
> > > module M2; include M1; end
> > > module M3; end
> > > module M4; include M3; end
> > > module M5; end
> > > module M6; include M5; end
> > > module M7; end
> > > class C1; include M2; end
> > > class C2<C1; include M4; end
> > > class C3<C2; include M6; include M7; end
> > class C4<C2; include M5; include M6; end
> > *************************************
> > M5 will not show up.
>
> This was the first and not fixable (with this solution) problem :)
> module re-included are hidden
>
> ---
> module M1; end
> module M2; end
> module M3; include M2; end
> class C1; include M1; end
> class C2 < C1; include M1; include M2; include M3; end
> ---
> only [M3] will show up
>
> too bad...
yeah the information just is not in the ancestor array :(
but it was a nice try ;)
>
> --
> Etienne Vallette d'Osia
>
>
>


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