From: Trans <transfire@...>
Date: 2006-10-31T03:03:38+09:00
Subject: Re: how to reset and how to undefine a class


Ross Bamford wrote:
> On Mon, 2006-10-30 at 22:30 +0900, Trans wrote:
> > Trans wrote:
> > > Adriano Mitre wrote:
> > >
> > > > Besides, I would like to know how to undefine Song class, so that
> > > > Song.new produce a NameError, i.e., behaving as if it were never
> > > > defined.
> > >
> > > You can redefine a class entirely by giving it a new subclass.
> > >
> > >   class Song < Object
> > >   end
> >
> > s/subclass/superclass/
>
> I don't get it:
>
> class SomeClass < String
>   def ameth(a)
>     p a
>   end
> end
>
> class SomeClass < Object
> end
>
> SomeClass.new.ameth(10)
>
>
> :w !ruby
> -:7: superclass mismatch for class SomeClass (TypeError)

Hmph.... Looks like Ruby changed this at some point. It used to be able
to do that.
 
T.