Mercurial > urweb
view tests/dynSpan.ur @ 1242:4ed556678214
At loop heads, havoc relations that might be changed by the loop
author | Adam Chlipala <adamc@hcoop.net> |
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date | Sat, 17 Apr 2010 14:26:52 -0400 |
parents | cc58941da3e2 |
children |
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val x = 1 fun main () : transaction page = s <- source "!"; return <xml><body> <dyn signal={x <- signal s; return <xml><span>{[x]}</span></xml>}/> <button onclick={x <- get s; set s (x ^ "!")}/> </body></xml>