From: rak rok <rakrok@...>
Date: 2006-07-27T09:16:12+09:00
Subject: Issue extending a delegated class

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Hi,

I have a simple class that I'm extending via delegation:

class A
  def one ; puts "A::one" ; two ; end
  def two ; puts "A::two" ;       end
end

class B < SimpleDelegator

  def initialize
    a = A.new

    # do some stuff to a

    __setobj__ a
    super( a )
  end
end


I then instantiate B, and use that, all is well.  However, i'm running into
issues whenever I try to override a method in B:
b = B.new
class << b
  def two ; puts "foo" ; end
end

I would have expected b.one to output:
A::one
custom

But instead i get:
A::one
A::two

However, calling the overriden method directly produces the expected
result.  I'm guessing the extend is really only adding the function to the B
instance and not to A?  Is there a way to get to A?

Thanks,
-rak-

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