From: Bulat Ziganshin <bulatz@...>
Date: 2002-09-27T15:52:01+09:00
Subject: Re: adding overload to ruby

Hello Yukihiro,

Friday, September 27, 2002, 6:13:23 AM, you wrote:

|>>I like the *concept* of this idea.
YM> |- I still think multimethod dispatch is evil, but it would be
YM> |a lot less evil if was based on methods rather than types. 

YM> I agree with you wholeheartedly.

what is the protocol, in your mind? i think that this is a bundle of
method names and their behavior. that is the difference with (possible
empty) mix-in module?

module String_like
  class_must_define :[], :at ....
end

class String
  include String_like
end

def foo(String_like s)
end

must most people will use just

def foo(String s)
end

:)

-- 
Best regards,
 Bulat                            mailto:bulatz@integ.ru