annotate tests/snest.ur @ 1105:a5c160636832

Protect against NULL applications in a few places
author Adam Chlipala <adamc@hcoop.net>
date Thu, 31 Dec 2009 15:14:24 -0500
parents 8932f855fa85
children
rev   line source
adamc@1039 1 fun main () =
adamc@1039 2 s1 <- source False;
adamc@1039 3 s2 <- source False;
adamc@1039 4
adamc@1039 5 return <xml><body>
adamc@1039 6 <dyn signal={s1 <- signal s1;
adamc@1039 7 return (if s1 then
adamc@1039 8 <xml><dyn signal={s2 <- signal s2;
adamc@1039 9 return <xml>{[s2]}</xml>}/></xml>
adamc@1039 10 else
adamc@1039 11 <xml>Not yet</xml>)}/>
adamc@1039 12 <hr/>
adamc@1039 13 <button value="s1" onclick={set s1 True}/>
adamc@1039 14 <button value="s2" onclick={set s2 True}/>
adamc@1039 15 </body></xml>