From: ts <decoux@...>
Date: 2002-09-27T18:27:03+09:00
Subject: Re: adding overload to ruby

>>>>> "C" == Christoph  <chr_news@gmx.net> writes:

>> def a(Array a) next_method; end

C> It would be helpful  (I have an idea but ...) if you could
C> describe what your next_method call does ...

 Same than Dylan, except that I don't give the possibility to change the
 dispatch at runtime (i.e. #next_method take 0 argument) which is, at least
 for me, a bad thing

>> end

 If you have not seen the problem, here the real example


pigeon% cat d.rb
#!./ruby -w
class B < Array; end
module M
   def a(B b) end
end

class A
   include M
   def a(Array a) end
end
pigeon% 

pigeon% d.rb
./d.rb:9: Possible ambiguous call M [B] -- A [Array] (NameError)
pigeon% 



Guy Decoux