view tests/transact.ur @ 1469:a354b306f948

Explain how to signal an error in a commit handler
author Adam Chlipala <adam@chlipala.net>
date Tue, 31 May 2011 09:14:03 -0400
parents 1cc67fdac4d3
children
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fun listHell n =
    if n <= 0 then
        []
    else
        n :: List.append (listHell (n-1)) (listHell (n-1))

fun doit r =
    Transactional.foo;
    return <xml>{[listHell (readError r.N)]}</xml>

fun main () = return <xml><body>
  <form> <textbox{#N}/> <submit action={doit}/> </form>
</body></xml>