gistfile1.rbx

module I18n
  module Backend
    class Caching
      attr_accessor :backend
      
      def translate(*args)
        result = read_cache(args) and return result
        write_cache args, backend.translate(*args)          
      end
      
      protected 
        def cache
          @cache ||= {}
        end
      
        def read_cache(key)
          @cache[key]
        end
        
        def write_cache(key, result)
          @cache[key] = result
        end
    end
  end
end