Stop the deprecation of Data.Monoid.{First,Last}

[Carter Schonwald]

Pardon the delay, busy month! (Though it’s a strange busy stressful time
for many I suppose)

Pester me on irc if I don’t followup in the next two days.  :)

On Mon, May 25, 2020 at 6:25 PM Simon Jakobi via Libraries <
libraries at haskell.org> wrote:

> Hi!
>
> I have just rebased my MR
> https://gitlab.haskell.org/ghc/ghc/-/merge_requests/3154.
>
> Carter, Daniel: Both of you should have the necessary permissions to
> approve the MR now. Please do so or let me know why you do not
> approve.
>
> Carter: To expand on my somewhat brusque answer (apologies!) to your
> questions:
>
> > are we merely slowing down the deprecation path? are there technical
> reasons aside from paucity of effort for eventual removal?
>
> As I tried to explain in the original email of this thread
> (https://mail.haskell.org/pipermail/libraries/2020-April/030357.html),
> it took me quite a lot of effort to discover the issues with the old
> migration path.
> I'd expect that vetting any other migration plan would take a similar
> amount of effort. As long as no one volunteers to explore a new
> migration path, I believe we shouldn't speculate that the deprecation
> will eventually happen.
>
> In any case, I currently believe that any removal of
> Data.Monoid.{First,Last} would cause substantial inconvenience for
> their current users.
>
> If you would still like to resolve the name conflict, I believe that
> the easier path would be to rename Data.Semigroup.{First,Last} which
> AFAICT are still used much less than the Monoid versions.
>
> I'll leave it to others to propose any such change.
>
> Cheers!
>
>
> Simon
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