[Haskell-cafe] serialize an unknown type

Alberto G. Corona agocorona at gmail.com
Sun Oct 21 20:46:15 CEST 2012

You can include the type in the serialized string. When recovering you can
read the type and use to look for the appropriate deserializer in a lookup
table where you have registered the deserializer.

I use this trick in the IDynamic package,. that serializes-deserializes
dynamic types:


2012/10/20 Corentin Dupont <corentin.dupont at gmail.com>

> 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
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> Haskell-Cafe mailing list
> Haskell-Cafe at haskell.org
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