From: Robert Dober <robert.dober@...>
Date: 2009-04-23T02:44:24+09:00
Subject: Re: how to test for existence of a method

On Wed, Apr 22, 2009 at 7:34 PM, Tom Cloyd <tomcloyd@comcast.net> wrote:


>
> How would you do this?
Well by mirroring the logic of method_missing
two cases were this can be done simply

def method_missing *args, &blk
   delegation.send *args, &blk
end

def respond_to? name
   delegation.respond_to? name
end

-------

def method_missing *args, &blk
   fetch( args.first.to_sym ){ super } # déjà vu ;)
 end

def respond_to? name
   has_key name.to_sym
end

==========================

Jesus' question was shall one do this, I believe that more often than
not one shall indeed do this.
Robert's warning remains very valuable though, because I believe that
very often one does
not go through the trouble.

Cheers
Robert