[Haskell-cafe] serialize an unknown type
corentin.dupont at gmail.com
Sun Oct 21 19:20:10 CEST 2012
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...
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>
> Nobody on this one?
> Here is a simplified version:
> data Event a where
> InputChoice :: a -> Event a
> How to serialize/deserialize this?
> 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!
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