cmp_tuples beautiful code

cmp_tuples.rb

          # Compare the attributes for each Tuple
          #
          # @param [Tuple] left
          # @param [Tuple] right
          #
          # @return [-1]
          #   returned if the left should be sorted before the right
          #
          # @return [0]
          #   returned if the left and right are equal
          #
          # @return [1]
          #   returned if the left should be sorted after the right
          #
          # @api private
          def cmp_tuples(left, right)
            reduce(0) do |cmp, direction|
              break cmp if cmp.nonzero?
              direction.call(left, right)
            end
          end