inheriting from a module, method by method

inherit_from.rb

module Kernel

  def inherit_from(namespace, **methods)
    methods.each do |key, value|
      self.send :define_method, value, &namespace.instance_method(key).bind(self)
    end
  end
end

module Greetings
  def english; 'hello'      end
  def italian; 'buongiorno' end
  def french;  'bonjour'    end
  def spanish; 'hola'       end
end

class Person

  inherit_from Greetings, english: :speak,
                          french:  :speak_french

end

# (main) > p = Person.new
# => #<Person:0x007feddc966488>
# (main) > p.speak
# => "hello"
# (main) > p.speak_french
# => "bonjour"