"Sean O'Dell" <sean / celsoft.com> writes:

>> Sorry for being slow, but I have no idea what you're after.  Could you
>> give an example of what you'd like to be able to write to achieve what
>> you want?
>
> object.implements(:hash_interface)

Well, as Kristof replied, that's easily done.  Doing it on a per-Class
basis is similarly easy.  But how is it different to the idea that you
called "a kludge" (http:///www.ruby-talk.org/102539)?  Or is your
complaint that it is not already done in the stdlib?