How to use the compact regions API to write a compact to a file?

[Shao, Cheng]

Hi Matthew,

It's possible to use Data.Compact.Serialize to write a compact to a
file or read it back. Directly serializing via ByteStrings has also
been discussed before, see link below. Hope this helps!

https://hackage.haskell.org/package/compact
https://github.com/ezyang/compact/issues/3

On Fri, May 22, 2020 at 1:32 PM Matthew Pickering
<matthewtpickering at gmail.com> wrote:
>
> Dear devs,
>
> I have been under the impression for a while that you can write a
> compact region to a file and the functions in GHC.Compact.Serialized
> also seem to suggest this is possible.
>
> https://hackage.haskell.org/package/ghc-compact-0.1.0.0/docs/GHC-Compact-Serialized.html
>
> It seems like there are some functions missing from the API. There is
> "importCompactByteStrings"
> but no function in the API which produces ByteStrings. So in order to
> use this function you have to convert a SerializedCompact into a
> ByteString, but in what specific way?
>
> Has anyone got any code where they have tried to do this?
>
> Cheers,
>
> Matt
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