lol.rb

class MyObject
  def self.my_attr_reader(*args)
    args.each do |method_name|
      class_eval do
        define_method(method_name) do
          self.instance_variable_get("@#{method_name}")
        end
      end
    end
  end

  def self.my_attr_accessor(*args)
    args.each do |method_name|
      class_eval do
        define_method(method_name) do
          self.instance_variable_get("@#{method_name}")
        end

        define_method("#{method_name}=") do |arg|
          self.instance_variable_set("@#{method_name}", arg)
        end
      end
    end
  end
end