view tests/cookieJsec.ur @ 1639:6c00d8af6239

Add a new scoping check for unification variables, to fix a type inference bug
author Adam Chlipala <>
date Sun, 18 Dec 2011 11:29:13 -0500
parents 796e42c93c48
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table t : {Id : int}

cookie c : int

fun setter r =
    setCookie c (readError r.Id);
    return <xml>Done</xml>

fun writer () =
    ido <- getCookie c;
    case ido of
        None => error <xml>No cookie</xml>
      | Some id => dml (INSERT INTO t (Id) VALUES ({[id]}))

fun preWriter () = return <xml><body onload={onConnectFail (alert "RPC error")}>
  <button onclick={writer ()} value="Write to database"/>

  <a link={main ()}>Back</a>

and main () = return <xml><body>
    <textbox{#Id}/> <submit value="Get cookie" action={setter}/>

  <form><submit action={preWriter} value="Prepare to write to database"/></form>