From: Toby Rodwell <trodwell@...>
Date: 2007-10-05T23:36:00+09:00
Subject: Refering to an object's 'parent'

I'd like to check an object's "parent" to see if it has a certain
method, so for example, given ...

class House(type)
  attr_accessor :rooms, :type_of_house
  @rooms = []
  ...
  def type_of_house
    type
  end
end

class Room
...
end

my_room = Room.new

my_house = House.new

my_house.rooms.push(my_room)

... then is it somehow possible to ask ...
my_room.<PARENT>.respond_to?(type_of_house) ?
(I know 'House' is not really the parent of 'Room', and so I suspect the
answer is "no", but it can't hurt to ask.  Thanks.
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