[Haskell-cafe] Serialising data between Haskell and C#

Mark Wotton mwotton at gmail.com
Mon Mar 12 23:38:19 UTC 2018

I haven't used it, but https://github.com/tim-m89/Salsa could be
interesting. (found via


On Mon, Mar 12, 2018 at 7:06 PM, Clinton Mead <clintonmead at gmail.com> wrote:
> Hi All
> I want to integrate Haskell into an existing C# project, initially by
> creating one C# class that basically does all it's "work" in Haskell (and
> just provides a C# interface).
> There will be a few types passed in and out of this Haskell module from/to
> C#. On the C# side, there are classes with members, who's types are probably
> going to be either Strings, Ints, or lists of Strings/Ints, or lists of
> other objects.
> I'd like to have the same types on the Haskell side.
> It would be nice if I could just magically pass one of these C# types to
> Haskell and on the Haskell side it will appear as a Haskell type
> I assume what I'll have to do is serialise the type on the C# side and
> deserialise on the Haskell side.
> C# allows one to serialise any data type to XML. Haskell has plenty of
> serialisation libraries as well.
> However, the problem I presume is that if I just serialise to XML on the C#
> side, and deserialise from XML on the Haskell side, if my types are just
> slightly different, or even if the exact serialisers/deserialises represent
> their data in different ways, it isn't going to work.
> It seems like passing complex data to/from Haskell may be a common problem
> other people experience, so I'm looking for any suggestions on a clean way
> of doing this.
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