Example refactoring of the class in Griddler that parses an email address.

address.rb

module Griddler
  class Address
    def initialize(address)
      @address = address
    end

    def some_method_name(type=:hash)
      if type == :hash
        parsed_address
      else
        parsed_address[type]
      end
    end

    private

    def parsed_address
      # ... generate and return the hash version
    end
  end
end