From: Sean O'Halpin <sean.ohalpin@...>
Date: 2008-03-23T08:13:53+09:00
Subject: Re: #meta

On Sat, Mar 22, 2008 at 1:39 PM, Robert Klemme
<shortcutter@googlemail.com> wrote:
>  While I think about it you could even do:
>
>  class Object
>    def meta(&b)
>      cl = class<<self;self;end
>      cl.class_eval(&b) if b
>      cl
>    end
>  end
>
>  class Some
>    meta do
>      attr_accessor :foo
>
>      def incr
>        self.foo += 1
>      end
>    end
>  end
>
>  Kind regards
>
>         robert
>

Indeed - I'm using almost identical code in doodle[1] but using the
name #singleton_class instead of #meta :)

    def singleton_class(&block)
      sc = (class << self; self; end)
      sc.module_eval(&block) if block_given?
      sc
    end

@Trans - doesn't #meta clash with an openuri attribute? I've just
removed it as an alias to #singleton_class in doodle for that reason.
FWIW, I'm considering renaming #singleton_class to avoid clashing with
someone else's definition. Perhaps, something like
#the_method_formerly_and_variously_known_as_singleton_eigen_or_meta_class
;)

Regards,
Sean

[1] http://doodle.rubyforge.org