In message "Re: [ruby-core:50681] [ruby-trunk - Feature #4085] Refinements and nested methods"
    on Sat, 8 Dec 2012 12:15:31 +0900, "shugo (Shugo Maeda)" <redmine / ruby-lang.org> writes:

|There are some considerations remained:
|
|* Should not send, method, respond_to? use refinements?
|  I've changed Symbol#to_proc not to use refinements, but it might be better these three methods to use refinements.

For 2.0, any indirect method access need not to honor refinements.

|* Should Module#include inherit refinements?

Not for 2.0.

|* Should Module#refinements be removed?

Yes, it's not included in the latest spec.

|* In CRuby, refine(klass, &proc) raises an ArgumentError.  Should it be the spec?

I guess so, but it's not worth to overhaul for JRuby and Rubinius.

							matz.