garbage ruby decorators

decorators.rb

module Decorator
  def def_decorator(name, &blk)
    define_method(name) do |method_name|
      new_name = "#{method_name}_"
      alias_method new_name, method_name

      define_method(method_name) do
        lmbda = lambda { send(new_name) }
        blk.call(lmbda)
      end

      new_name
    end
  end
end

module TimingDecorator
  extend Decorator

  def_decorator(:time) do |lambda|
    puts Time.now.to_i
    lambda.call
    puts Time.now.to_i
  end
end

class Thing
  extend TimingDecorator

  time def do_the_thing
    puts "doing the thing"
  end
end

Thing.new.do_the_thing