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Allow sources to be returned by RPCs
author Adam Chlipala <adam@chlipala.net>
date Sat, 03 Dec 2011 10:00:10 -0500
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fun remote () =
    s <- source <xml/>;
    return (s, <xml><dyn signal={signal s}/></xml>)

fun main () : transaction page =
    x <- source <xml/>;
    return <xml><body>
      <dyn signal={signal x}/>
      <hr/>
      <button onclick={p <- rpc (remote ());
                       set x p.2;
                       set p.1 <xml>Hi!</xml>}/>
    </body></xml>