From: Trans <transfire@...>
Date: 2011-12-04T23:14:59+09:00
Subject: [ruby-core:41477] Re: [ruby-trunk - Bug #5694] Proc#arity doesn't take optional arguments into account.

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.