From: Trans <transfire@...>
Date: 2008-10-20T11:41:12+09:00
Subject: Re: Proc metaprogramming tricks?



On Oct 19, 5:18 pm, Adam Skobi <dxm...@gmail.com> wrote:
> >> I'm building a DSL and trying some weird syntax structures. My DSL
> >> should look like this.
> >     def dsl(&block)
> >       C.module_eval(&block)
> >     end
>
> Well yeah, that would work. But I was thinking about something more
> general.
>
> class Root
>   def dsl(&block)
>     instance_eval(&block)
>   end
> end
>
> class C
>   #...
> end
>
> class D
>   #...
> end
>
> dsl {
>   met1
>
>   class C1 < C
>     #...
>   end
>
>   class D1 < D
>     #...
>   end
>
> }
>
> Can I run part of the Proc in the context of C and part in the
> context of D i.e. can I somehow split the Proc or convert it to a
> readable String?
>
> The more I think about it, the more absurd the reasoning behind it
> seems. But since I'm at it, I may as well continue the debate :-)

You can just allow them to be defined in Root and then use #inherited
to set

  C::C1 = Root:C1
  D::D1 = Root:D1
  ...

(using const_get and const_set)

T.