From: Robert Dober <robert.dober@...>
Date: 2008-03-30T05:09:21+09:00
Subject: Re: What's going on here? (weird Ruby 1.9 incompatibility)

On Sat, Mar 29, 2008 at 7:08 PM, Tony Arcieri <tony@medioh.com> wrote:
> class A
>   def a
>     'yay'
>   end
>  end
>
>  class B
>   def initialize(&meth)
>     class << self; self; end.__send__(:define_method, :b, &meth)
>   end
>  end
>
>  b = B.new &A.new.method(:a)
>  p b.b
>
>  Ruby 1.8 prints:
>  "yay"
>
>  Ruby 1.9 complains (on the p b.b line):
>  14:in `<main>': wrong number of arguments (1 for 0) (ArgumentError)
>
>  --
>  Tony Arcieri
>  medioh.com
>

I added the output of the arity of the methods, looks very much like a
bug to me, are you familiar with the Bug Reporting process?

<code>
ma = A.new.method(:a)
p ma.arity  # --> 0
b = B.new( &ma )
mb = b.method(:b)
p mb.arity # --> 0

p b.b  # bombs
</code>

Cheers
Robert
-- 
http://ruby-smalltalk.blogspot.com/

---
Whereof one cannot speak, thereof one must be silent.
Ludwig Wittgenstein