You could use protocol buffers:
https://developers.google.com/protocol-buffers/docs/csharptutorial
You would specify the data types you need in an independent language, then
use a code generator to get C# classes and Haskell records, and serializers
for free. On the Haskell side you can use
https://hackage.haskell.org/package/proto-lens. Then you can send the
serialized objects over FFI or the network as needed.
On Tue, Mar 13, 2018 at 12:06 AM, Clinton Mead
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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