RE: [Haskell-cafe] Removing mtl from the Haskell Platform
On Wed, 13 May 2009, Sittampalam, Ganesh wrote:
We've discussed replacing it with transformers+monads-fd+an mtl compatiblity layer on libraries@. Ross and I plan to propose doing this for the second release of the platform - it's not fair to disrupt the first release at this stage.
transformers+monads-fd is quite a small evolution over mtl - it factors out the fundeps into a separate package, tightens up some of the class constraints, and makes State = StateT Identity etc rather than a separate type. Even this breaks a few packages, but doing anything more substantial would be quite disruptive. That's not to say that we shouldn't do it, though.
I guess the libraries@ list will continue to be the place that such decisions get made, but I think it's a bit up in the air at the moment.
Have you make a trac ticket for your proposal? -- Russell O'Connor http://r6.ca/ ``All talk about `theft,''' the general counsel of the American Graphophone Company wrote, ``is the merest claptrap, for there exists no property in ideas musical, literary or artistic, except as defined by statute.''
roconnor@theorem.ca wrote:
On Wed, 13 May 2009, Sittampalam, Ganesh wrote:
We've discussed replacing it with transformers+monads-fd+an mtl compatiblity layer on libraries@. Ross and I plan to propose doing this for the second release of the platform - it's not fair to disrupt the first release at this stage.
transformers+monads-fd is quite a small evolution over mtl - it transformers+factors out the fundeps into a separate package, tightens up some of the class constraints, and makes State = StateT Identity etc rather than a separate type. Even this breaks a few packages, but doing anything more substantial would be quite disruptive. That's not to say that we shouldn't do it, though.
I guess the libraries@ list will continue to be the place that such decisions get made, but I think it's a bit up in the air at the moment.
Have you make a trac ticket for your proposal?
No, because I wasn't sure what the procedure for changing libraries would become once the HP is in place. Since Don is opening trac tickets for other proposals it would make sense to do one for this too now. Ganesh =============================================================================== Please access the attached hyperlink for an important electronic communications disclaimer: http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html ===============================================================================
On Fri, May 15, 2009 at 04:13:27PM +0100, Sittampalam, Ganesh wrote:
roconnor@theorem.ca wrote:
Have you make a trac ticket for your proposal?
No, because I wasn't sure what the procedure for changing libraries would become once the HP is in place. Since Don is opening trac tickets for other proposals it would make sense to do one for this too now.
I think this would be a libraries proposal rather than an HP request. It would add two more packages to HP, though.
participants (3)
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roconnor＠theorem.ca -
Ross Paterson -
Sittampalam, Ganesh