annotate demo/sum.ur @ 628:12b73f3c108e
Switch to TDisjoint from CDisjoint; still need to implement obligation generation at EDisjoint uses
author |
Adam Chlipala <adamc@hcoop.net> |
date |
Tue, 24 Feb 2009 12:01:24 -0500 |
parents |
f4f2b09a533a |
children |
effa7d43aac3 |
rev |
line source |
adamc@627
|
1 fun sum (fs ::: {Unit}) (fold : folder fs) (x : $(mapUT int fs)) =
|
adamc@411
|
2 foldUR [int] [fn _ => int]
|
adamc@411
|
3 (fn (nm :: Name) (rest :: {Unit}) [[nm] ~ rest] n acc => n + acc)
|
adamc@627
|
4 0 [fs] fold x
|
adamc@411
|
5
|
adamc@411
|
6 fun main () = return <xml><body>
|
adamc@627
|
7 {[sum Folder.nil {}]}<br/>
|
adamc@627
|
8 {[sum (Folder.cons [#A] [()] (Folder.cons [#B] [()] Folder.nil)) {A = 0, B = 1}]}<br/>
|
adamc@627
|
9 {[sum (Folder.cons [#D] [()] (Folder.cons [#C] [()] (Folder.cons [#E] [()] Folder.nil))) {C = 2, D = 3, E = 4}]}
|
adamc@411
|
10 </body></xml>
|