[Haskell-cafe] Status of Acid-State and IxSet

JP Moresmau jpmoresmau at gmail.com
Fri May 29 10:50:59 UTC 2015

Thank you all!! It looks I need to look into ixset-typed but that there is
hope to get ixset and its dependencies in good order!


On Fri, May 29, 2015 at 10:53 AM, Adam Gundry <adam at well-typed.com> wrote:

> Hi,
> On 28/05/15 19:05, JP Moresmau wrote:
> > Hello, for a project I decided to use Acid-State and IxSet, and was
> > pretty happy with them. I enjoyed working with Haskell structures for
> > storing and querying data, and my data could fit in memory. However, now
> > I've moved to GHC 7.10, and for example syb-with-class, a dependency of
> > ixset, does not build with template-haskell 2.10. So I'm wondering, are
> > these projects still alive and kicking? Are if I want some memory based
> > storage and indexing, should I look at some other projects (maybe
> > VCache http://hackage.haskell.org/package/vcache). Or is it just bad
> > timing and GHC 7.10 compatible versions of these libraries are in the
> works?
> Another alternative to ixset is ixset-typed [1], by my colleague Andres.
> It has an API rather like ixset, but with much stronger type-level
> guarantees, and it is fairly easy to port code from one to the other.
> Moreover, it doesn't depend on syb-with-class.
> Hope this helps,
> Adam
> [1] https://hackage.haskell.org/package/ixset-typed
> https://github.com/well-typed/ixset-typed
> --
> Adam Gundry, Haskell Consultant
> Well-Typed LLP, http://www.well-typed.com/

JP Moresmau
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