experiment with module extend vs delegation

DCI_experiments.rb

require 'delegate'

class D < SimpleDelegator
  def foo
    puts "foo #{self} #{self.class}"
  end
end

D.new("jojo").foo


class User
end

module User::Agent
  
  def self.extended klass
    puts "#{self} extended by #{klass}"
  end
  
  def code
    "007"
  end
end

module User::SuperAgent
  
  def self.extended klass
    puts "#{self} extended by #{klass}"
  end
  
  def code
    "super #{super}"
  end
end

puts User.new.extend(User::SuperAgent, User::Agent).code