Ruby superclass/subclass AOP

superclass_subclass_aop.rb

module LogOnCall
  def call
    puts "Logging #{self.class.name}.call"
    super
  end
end

class BaseThing
  ### MAGIC HAPPENS HERE
  def self.inherited(subclass)
    subclass.prepend LogOnCall
  end
  ###
end

class Thing < BaseThing
  def call
    puts "Heyo!!!"
  end
end

# pry(main)> Thing.new.call
#  Logging Thing.call
#  Heyo!!!