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comparison tests/nextid.ur @ 1556:e1f5d9c4cc20

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An abstract type of IDs
author Adam Chlipala <adam@chlipala.net>
date Sat, 03 Sep 2011 12:51:05 -0400
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1555:d5c961c709f9 1556:e1f5d9c4cc20
1 fun main () : transaction page =
2 id1 <- fresh;
3 id2 <- fresh;
4 id3 <- fresh;
5 idS <- source id3;
6 return <xml><body>
7 <span id={id1}>Hi</span> <span id={id2}>there!</span><br/><br/>
8 <dyn signal={idS <- signal idS; return <xml><span id={idS}>Whoa-hoa!</span></xml>}/>
9 <button onclick={id <- fresh; set idS id}/>
10 Source: <dyn signal={idS <- signal idS; return (txt (<xml><span id={idS}>Whoa-hoa!</span></xml> : xbody))}/>
11 </body></xml>