Adding Applicative/Functor instances to all Monads in GHC

Andreas Abel andreas.abel at ifi.lmu.de
Thu May 16 17:43:09 CEST 2013


Also +1.

On 16.05.2013 16:39, Edward A Kmett wrote:
> +1
>
> It is about time we finally ripped off this bandaid.
>
> I look forward to the day when I can shed half of the combinators I write in some libs.
>
> -Edward
>
> On May 16, 2013, at 10:19 AM, David Luposchainsky <dluposchainsky at googlemail.com> wrote:
>
>> On 2013-05-16 16:09, Bas van Dijk wrote:
>>> Note that I already did this once as part of:
>>> http://hackage.haskell.org/trac/ghc/ticket/4834
>>> However, that never got merged.
>>
>> That's certainly going to be useful, although the patches may be hard to
>> use due to their age now.
>>
>> I don't want to make this discussion about how useful/probable the new
>> hierarchy proposal change would be, but now that there's a new Haskell
>> Prime team, I thought it would be a good time to get unecessary
>> obstacles out of the way before we even try. If adding Applicatives to
>> GHC works out, we'll have to test how much of Hackage requires similar
>> fixes, and when that is satisfyingly patched up, we can begin to think
>> about retrying your proposal.
>>
>> David
>>
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