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view demo/tcSum.ur @ 693:655bcc9b77e0

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_Really_ implement embedded closure GC; extend Scriptcheck to figure out when client IDs must be assigned
author Adam Chlipala <adamc@hcoop.net>
date Sat, 04 Apr 2009 14:03:39 -0400
parents aa2290c32ce2
children 669ac5e9a69e
line wrap: on
line source
fun sum (t ::: Type) (_ : num t) (fs ::: {Unit}) (fl : folder fs) (x : $(mapU t fs)) =
    foldUR [t] [fn _ => t]
    (fn (nm :: Name) (rest :: {Unit}) [[nm] ~ rest] n acc => n + acc)
    zero [fs] fl x

fun main () = return <xml><body>
  {[sum {A = 0, B = 1}]}<br/>
  {[sum {C = 2.1, D = 3.2, E = 4.3}]}
</body></xml>