MonadFailProposal - missing instances in bootlibs

Edward Kmett ekmett at gmail.com
Thu Oct 4 01:29:36 UTC 2018


Agreed!

On Wed, Oct 3, 2018 at 5:13 PM David Feuer <david.feuer at gmail.com> wrote:

> A PR to add the instance for sequences would be accepted promptly.
>
> On Wed, Oct 3, 2018, 12:51 PM lennart spitzner <hexagoxel at hexagoxel.de>
> wrote:
>
>> Hi,
>>
>> While the impact seems low, some relatively trivial MonadFail instances
>> seem to be missing still, including: Option, First, Last, Proxy,
>> WrappedMonad. Also the non-base containers:Seq. These were not specifically
>> discussed either [1].
>>
>> Thoughts? Any other things that are still overlooked?
>>
>>
>> -- lennart
>>
>> [1]
>> https://prime.haskell.org/wiki/Libraries/Proposals/MonadFail#Discussion
>>
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