Drastic Prelude changes imminent

[Gershom B]

I have gone ahead and created a wiki page with a draft FAQ on the
Foldable/Traversable proposal:
https://wiki.haskell.org/Foldable_Traversable_In_Prelude

I've attempted to hit the highlights that I can think of, but I'm sure
there's stuff either wrong or missing, or perhaps that could just be marked
up better.

Please, everyone, feel free to expand, clarify, or make minor or formatting
edits as you desire. If you feel there is something substantial that is
unaddressed (especially of the form "Why not X?", please email me off-list
and I'll try to work to cook up a proper addition to the page. Or, if you
have any edits that you think should happen but aren't equipped to edit the
wiki at the moment, I'l try to act on that too :-)

Hopefully, this can serve as a resource not only for the current
discussion, but to point people to regarding the final form of the proposal
as it actually takes shape in GHC 7.10.

--Gershom

On Wed, Jan 28, 2015 at 11:02 AM, Gershom B <gershomb at gmail.com> wrote:

> On January 28, 2015 at 5:57:56 AM, Simon Peyton Jones (
> simonpj at microsoft.com) wrote:
> > > Just to be clear, this isn't my proposal: it's from Lennart and
> > Neil. They did come to see me; I had indeed entirely missed the
> > fact that the Prelude was changing so much; I did encourage them
> > to explicitly and clearly air their concerns. But I don't feel
> > ready to take a personal position on how best to move forward.
>
> Thanks for the clarity Simon. Apologies for contributing to noise by a
> sloppy reading of earlier messages in this thread.
>
> I’ve been advocating that it is important that a FAQ be written up on the
> BBP to make the maze of (careful) choices more understandable to a lay
> audience. That will at least help the discussion to not repeatedly cover
> the same ground. If nobody else manages to step in and do it, I’ll see what
> I can get done myself in the next few days.
>
> Cheers,
> Gershom
>
> > I very much value what the Core Libraries Committee does. Good
> > libraries are a foundational component of a language and, although
> > it's not very glamourous, working on making the libraries (particularly
> > the core ones) work smoothly is incredibly valuable. So we all
> > owe huge thank you to the Core Libraries Committee.
> >
> > It's unfortunate that all this has arisen so late in the 7.10 release
> > cycle. Perhaps I should have been paying more attention. Perhaps
> > the CLC should have published the proposal, and with clearer
> > signposting. Perhaps Lennart and Neil should have been more
> > vocal earlier. But it's unproductive to discuss who to blame,
> > and we probably all carry some responsibility. (We might want
> > to learn some lessons for the future, though; one being that changes
> > to the Prelude need particular care and advertising.)
> >
> > More important is what to do next. Let's talk about how to resolve
> > this during this week. A small group of us (including Edward K
> > and Lennart) plan to have a Skype call on Monday. But the more we
> > have a clear set of alternatives, the better.
> >
> > Simon
>
>
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