Getting comonad into base

Oliver Charles ollie at
Fri Sep 11 19:04:00 UTC 2020

Is this for instances of Comonad that you use, or so you can supply your own instances without a comonad dependency? I ask because I think I can recall a single time I actually had a use for comonad, and my understanding is that in Haskell comonads are relatively uninteresting - but it sounds like I'm mistaken!

On Fri, 11 Sep 2020, at 7:54 PM, Sandy Maguire wrote:
> Hi all,
> I frequently regret the lack of having the Comonad class in base. Are there any good reasons for its absence? If not, I can get started on a patch.
> Best,
> Sandy
> _______________________________________________
> Libraries mailing list
> Libraries at
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the Libraries mailing list