[Haskell-cafe] serialize an unknown type

[Corentin Dupont]

Hi,
Sorry if it was not enough explicit.
I want to write functions like this:

serialize :: (Show a) => Event a -> IO ()
deserialize :: (Read a) => IO () -> Event a

The functions would write and read the data in a file, storing/retrieving
also the type "a" I suppose...
BR,
C



On Sun, Oct 21, 2012 at 7:03 PM, MigMit <miguelimo38 at yandex.ru> wrote:

> Seems like nobody really understands what is it that you want to
> accomplish or what your problem is.
>
> Отправлено с iPhone
>
> 21.10.2012, в 20:39, Corentin Dupont <corentin.dupont at gmail.com>
> написал(а):
>
> Nobody on this one?
> Here is a simplified version:
>
> data Event a where
>     InputChoice ::  a -> Event a
>
> How to serialize/deserialize this?
>
> Cheers,
> Corentin
>
> On Sat, Oct 20, 2012 at 10:49 PM, Corentin Dupont <
> corentin.dupont at gmail.com> wrote:
>
>> Hi the list!
>> I have a simple question, how can I serialize/deserialize a structure
>> like this:
>>
>> data InputChoice c  deriving Typeable
>> data Event a where
>>     InputChoice :: (Eq c, Show c) => [c] -> c -> Event (InputChoice c)
>>  (...)
>>
>> I'd like that the values of type "c" get serialized to a String... That's
>> the easy part, but for deserializing, oops!
>>
>> Cheers,
>> Corentin
>>
>
> _______________________________________________
> Haskell-Cafe mailing list
> Haskell-Cafe at haskell.org
> http://www.haskell.org/mailman/listinfo/haskell-cafe
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.haskell.org/pipermail/haskell-cafe/attachments/20121021/c4d2ef6c/attachment.htm>