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view tests/rpcNested.ur @ 1614:efe1a2e9e4de

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Support 'safeGet' in demos
author Adam Chlipala <adam@chlipala.net>
date Fri, 25 Nov 2011 17:19:34 -0500
parents 133c71008bef
children
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datatype node
  = Node of
    { Label     : string
    , SubForest : list node
    }

fun getNode () : transaction node =
    return (Node { Label = "foo", SubForest = [] })

fun main () : transaction page = return <xml><body>
  <button onclick={
    n <- rpc (getNode ());
    case n of
        Node {Label = l, ...} => alert ("l = " ^ l)
  }/>
  </body></xml>