Ruby polymorphic example

polymorphic.rb

class GenericParser
  def parse(parser)
    puts "The parser class received the parse method"
    parser.parse
  end
end

class JSONParser
  def parse
    puts "An instance of the JSONParser receives the parse message"
  end
end

class XmlParser
  def parse
    puts "An instance of the XmlParser receives the parse message"
  end
end


# parser = GenericParser.new
# puts 'Using the XmlParser'
# parser.parse(XmlParser.new)

# puts 'Using the JsonParser'
# parser.parse(JsonParser.new)