From: Intransition <transfire@...>
Date: 2009-07-18T23:51:55+09:00
Subject: Enumerator of what?

Any way to ask an Enumerator what the underlying object it is
enumerating for is? Eg.

  e = Enumerator.new([1,2,3], :each)
  e.some_method #=> [1,2,3]