On Sat, Dec 3, 2011 at 10:41 PM, NARUSE, Yui <naruse / airemix.jp> wrote:
>
> For example you want to know whether you can obj.meth(a, b) or not,
> it should be something like obj.callable?(:meth, a, b), shouldn't it?

I concur. That would be sweet!

I think Ruby's arity should still be shored up if it is deficient, though.