Steel City Ruby Lightning Talk

basic.rb

def steelcityruby
  "I heard you like programming."
end

final.rb

module Meta
  def just_programming
    class_eval do
      def steelcityruby
        "I heard you like programming."
      end
    end
  end
end

class Foo
  extend Meta
  just_programming
end

Foo.new.steelcityruby
=> "I heard you like programming."

wrapped.rb

def just_programming
  class_eval do
    def steelcityruby
      "I heard you like programming."
    end
  end
end