gistfile1.txt

module MyAccessors

  @@my_accessors = []

  def my_accessor var
    attr_accessor var
    @@my_accessors << var
  end

  def my_attributes
    @@my_accessors
  end

end

class MyClass
  self.extend( MyAccessors)

  my_accessor :field1
  my_accessor :field2

end

class MySecondClass
  self.extend( MyAccessors)

  my_accessor :field3
  my_accessor :field4

end

p MyClass.my_attributes