Moon Memoized

Usage

class MyObject
  extend Moon::Memoized

  memoize_attr(:name, 'Eggo')
  memoize_attr(:age) { 18 }
  memoize_attr(:name_length) { name.length }
end

obj = MyObject.new
obj.name #=> Eggo
obj.age #=> 18
obj.name_length #=> 4