adamc@643: fun sum (fs ::: {Unit}) (fl : folder fs) (x : $(mapU int fs)) = adamc@411: foldUR [int] [fn _ => int] adamc@411: (fn (nm :: Name) (rest :: {Unit}) [[nm] ~ rest] n acc => n + acc) adamc@632: 0 [fs] fl x adamc@411: adamc@411: fun main () = return adamc@633: {[sum {}]}
adamc@633: {[sum {A = 0, B = 1}]}
adamc@633: {[sum {C = 2, D = 3, E = 4}]} adamc@411: