From: Joel VanderWerf <vjoel@...>
Date: 2002-07-16T07:47:06+09:00
Subject: Re: cut & paste for code

Matthias Veit wrote:
> What i want to achieve is described best with "copy inheritance"
> - no real inheritance, more like copy the source code from one
> class to another (as easy as in every editor).
> The call T::B.new.a shall return a T::A not an R::A.

Does this work for you?

module MA
end
module MB
   def a
     return type::A.new
   end
end

module R
   class A
     include MA
   end
   class B
     A = R::A
     include MB
   end
end

module T
   class A
     include MA
   end
   class B
     A = T::A
     include MB
   end
end

p R::B.new.a.type  # prints: R::A

p T::B.new.a.type  # prints: T::A