Proposal to solve the `EitherT` problem.
danburton.email at gmail.com
Mon Jun 17 19:50:17 CEST 2013
This is in the same spirit as the missing Traversable & friends instances
for Either: this is what Haskellers are coming to expect as standard.
-- Dan Burton
On Sun, Jun 16, 2013 at 3:12 PM, Gabriel Gonzalez <gabriel439 at gmail.com>wrote:
> On 06/16/2013 03:09 PM, Roman Cheplyaka wrote:
>> * Gabriel Gonzalez<gabriel439 at gmail.com> [2013-06-16 14:52:46-0700]
>>> * Approach 2: Add `EitherT` to `transformers` alongside `ErrorT` and
>>> have them both implement `MonadError`.
>> I already submitted the proposal to merge EitherT into transformers ,
>> which enjoyed universal support, barring some implementation details.
>> So why not just bring that proposal to its conclusion?
>> : http://www.haskell.org/**pipermail/libraries/2012-**
> Thanks for reminding me of this. I vaguely remembered this but couldn't
> find the thread.
> I'll gladly get behind your original proposal, then. I particularly liked
> the suggestion of keeping the `either` package around to provide the
> `semigroups` and `semigroupoids` instances.
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