From: Trans <transfire@...>
Date: 2007-06-19T04:45:57+09:00
Subject: Re: Means of Optional Expression


On Jun 18, 1:48 pm, Trans <transf...@gmail.com> wrote:
>
>   module Kernel
>     def express(name)
>       extend self.class.const_get(name.to_s.capitalize)
>     end
>   end
>
>   class Array
>     module Random
>       def shuffle
>         [] # ...
>       end
>
>       def shuffle!
>         replace(shuffle)
>       end
>
>       # ...
>     end
>   end
>
>   a = [1,2,3]
>   a.shuffle  #=> NoMethodError
>
>   a.express(:Random)
>   a.shuffle  #=> []

FYI. I'm thinking about using this approach for Facets' Core
extensions in 2.0. There would be two versions of each require, one
that automatically includes the extension and one that does not.

T.