Mercurial > urweb
annotate tests/channelThief.ur @ 2195:18e6fb487880
Reduce: add reduction in some spots previously missed, associated with 'case' return types
author | Adam Chlipala <adam@chlipala.net> |
---|---|
date | Wed, 25 Nov 2015 18:48:17 -0500 |
parents | a671e5258a2c |
children |
rev | line source |
---|---|
adam@1942 | 1 table t : { Ch : channel string } |
adam@1942 | 2 |
adam@1942 | 3 fun go () = |
adam@1942 | 4 let |
adam@1942 | 5 fun overwrite () = |
adam@1942 | 6 dml (DELETE FROM t WHERE TRUE); |
adam@1942 | 7 ch <- channel; |
adam@1942 | 8 dml (INSERT INTO t (Ch) VALUES ({[ch]})); |
adam@1942 | 9 return ch |
adam@1942 | 10 |
adam@1942 | 11 fun retrieve () = |
adam@1942 | 12 oneRowE1 (SELECT (t.Ch) FROM t) |
adam@1942 | 13 |
adam@1942 | 14 fun transmit () = |
adam@1942 | 15 ch <- retrieve (); |
adam@1942 | 16 send ch "Test" |
adam@1942 | 17 |
adam@1942 | 18 fun listenOn ch = |
adam@1942 | 19 s <- recv ch; |
adam@1942 | 20 alert s |
adam@1942 | 21 in |
adam@1942 | 22 ch <- overwrite (); |
adam@1942 | 23 return <xml><body onload={listenOn ch}> |
adam@1942 | 24 <button value="overwrite" onclick={fn _ => ch <- rpc (overwrite ()); listenOn ch}/> |
adam@1942 | 25 <button value="retrieve" onclick={fn _ => ch <- rpc (retrieve ()); listenOn ch}/> |
adam@1942 | 26 <button value="transmit" onclick={fn _ => rpc (transmit ())}/> |
adam@1942 | 27 </body></xml> |
adam@1942 | 28 end |
adam@1942 | 29 |
adam@1942 | 30 fun main () = return <xml><body> |
adam@1942 | 31 <form><submit action={go}/></form> |
adam@1942 | 32 </body></xml> |