[Ur] Anonymous function remains at code generation?

David Snider david at davidsnider.net
Sun Jun 2 09:11:44 EDT 2013


Woops, nevermind. Ignore that.



On 06/02/2013 09:09 AM, David Snider wrote:
> try:
> fun getRowById (id : int) : transaction (option tT) =
>     rOpt <- oneOrNoRows (SELECT *
>                          FROM theTable
>                          WHERE theTable.Id={[id]});
> return
> (
> case rOpt of
>     None=> None
> | Some row => (Some row.TheTable)
>
> )
> On 06/01/2013 06:15 PM, Istvan Chung wrote:
>> Hello,
>>
>> I'm getting the error
>>
>>      test.ur:13:16: (to 13:27) Anonymous function remains at code
>>      generation
>>      Function:  (fn _ : {} => None)
>>
>> For this code (sorry it's big!): <<EOF
>>
>> con tC = [ Id = int, Next = option int ]
>> type tT = $tC
>> table theTable : tC
>>
>> fun getRowById (id : int) : transaction (option tT) =
>>      rOpt <- oneOrNoRows (SELECT *
>>                           FROM theTable
>>                           WHERE theTable.Id={[id]});
>>      case rOpt of
>>          None => return None
>>        | Some row => return (Some row.TheTable)
>>
>> fun getRowByOptionId (idOpt : option int) : transaction (option tT) =
>>      case idOpt of
>>          None => return None (* Line 13; Error message points here *)
>>        | Some nextId => (getRowById nextId)
>>
>> fun deleteRow (id : int) : transaction unit =
>>      thisRowOpt <- getRowById id;
>>      case thisRowOpt of
>>     None => return ()
>>        | Some thisRow => (a <- (getRowByOptionId thisRow.Next);
>>                                 (* snip deleting logic *)
>>                                 return ())
>>
>> fun deleteRowHandler r =
>>      deleteRow 0;
>>      return <xml/>
>>
>> fun main () =
>>      return
>>        <xml>
>> <head><title>Example</title></head>
>>          <body>
>>            <form><submit action={deleteRowHandler}/></form>
>>          </body>
>>      </xml>
>> EOF
>>
>> This file contains a small portion of the code relating to row deleting,
>> with as much taken out as I could without the error mysteriously
>> disappearing. I have absolutely no idea what's causing this error; it
>> doesn't seem (to me) that there's anything unusual about this code.
>>
>
>
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