Mercurial > urweb
annotate demo/listShop.ur @ 2190:22117edf8fd3
After a tricky debugging session, limit visibility of type-class instances from anonymous modules
| author | Adam Chlipala <adam@chlipala.net> |
|---|---|
| date | Sun, 01 Nov 2015 16:33:14 -0500 |
| parents | 8084fa9216de |
| children |
| rev | line source |
|---|---|
| adamc@397 | 1 structure I = struct |
| adamc@397 | 2 type t = int |
| adamc@403 | 3 val toString = show |
| adamc@403 | 4 val fromString = read |
| adamc@397 | 5 end |
| adamc@397 | 6 |
| adamc@397 | 7 structure S = struct |
| adamc@397 | 8 type t = string |
| adamc@403 | 9 val toString = show |
| adamc@403 | 10 val fromString = read |
| adamc@397 | 11 end |
| adamc@397 | 12 |
| adamc@397 | 13 structure IL = ListFun.Make(I) |
| adamc@397 | 14 structure SL = ListFun.Make(S) |
| adamc@397 | 15 |
| adamc@397 | 16 fun main () = return <xml><body> |
| adamc@397 | 17 Pick your poison:<br/> |
| adamc@397 | 18 <li> <a link={IL.main ()}>Integers</a></li> |
| adamc@397 | 19 <li> <a link={SL.main ()}>Strings</a></li> |
| adamc@397 | 20 </body></xml> |