From: "Ara.T.Howard" <Ara.T.Howard@...>
Date: 2005-10-18T10:34:09+09:00
Subject: Re: Class method aliasing

On Tue, 18 Oct 2005, Bob Hutchison wrote:

> Hi,
>
> I'd like to confirm that I cannot use any kind of aliasing to tidy up the 
> following situation:
>
> class Junk
>  def Junk.info
>    "blah blah blah"
>  end
>
>  def info
>    Junk.info
>  end
> end
>
> I'd really like to be able to write the following:
>
> puts Junk.info
>
> # then somewhere far from there...
> junk = Junk.new
> puts junk.info
>
> I don't find junk.class.info satisfying, and if that were a module method, 
> then you have to know too much.
>
> I guess what I'm trying to do is make class/module methods directly available 
> to instances, and it seems I can't do that (whatever the reason).
>
> Any better ideas are more than welcome.
>
> Cheers,
> Bob

   harp:~ > cat a.rb
   class Module
     def mod_attr a
       module_eval <<-code
         def #{ a }
           self::class.send '#{ a }'
         end
         def #{ a }= value
           self::class.send '#{ a }=', value
         end
       code
     end
   end

   class C
     def C::info
       42
     end
     mod_attr 'info'
   end

   p C::info

   p C::new.info


   harp:~ > ruby a.rb
   42
   42


-a
-- 
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| email :: ara [dot] t [dot] howard [at] noaa [dot] gov
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