From: polypus <polypus@...>
Date: 2006-05-05T11:14:54+09:00
Subject: Re: mixin puzzle

ok for those who like pointless exercises here is a harder version.

rules:

1) you may replace the elipses with any amount of code but may not alter 
any other part of the code listing
2) when the program is run it must return, i.e. X.new must evaluate to 
an instance of class X
3) foo must be called as an instance method of an instance of X and 
print something like #<X:0xb7e188a4>
4) you may not use class_eval, module_eval, or use the extend_object 
callback

module N
  def foo
    puts self
  end
end

module M
  ...
end

class X
  extend M
end

X.new

yes there is a solution, good luck


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