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! JP On Fri, May 29, 2015 at 10:53 AM, Adam Gundry 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 http://jpmoresmau.blogspot.com/

On Fri, May 29, 2015 at 6:52 PM, Jeremy Shaw wrote:

Hello,

acid-state is still alive and kicking (and better be since hackage uses it). In fact, there is a GSoC project to add replication support this summer I believe.

ixset is still supported. We submitted a patch upstream to syb-with-class but have not heard back. Our patched version is here:

Where is this upstream? Since I haven't seen any patches my way until today I guess there's some other place where I'm not checking. Anyhow there's a new version on hackage now which builds on ghc-7.10. I would gladly transfer maintainership of syb-with-class though. Cheers, Andrea

https://github.com/seereason/syb-with-class

Nix patches syb-with-class by default -- which is nice ;)

If you do not have legacy code to support, I highly recommend checking out ixset-typed. It is very much like ixset -- but does a better job catching errors though the type system. IxSet is a little too loose with the types for no real reason resulting in avoidable runtime errors.

- jeremy

On Thu, May 28, 2015 at 1:05 PM, 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?

Thanks!

-- JP Moresmau http://jpmoresmau.blogspot.com/

_______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe

_______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe