On 06/16/2013 03:09 PM, Roman Cheplyaka wrote:

* Gabriel Gonzalez<gabriel439@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 [1],
which enjoyed universal support, barring some implementation details.

So why not just bring that proposal to its conclusion?

[1]: http://www.haskell.org/pipermail/libraries/2012-December/019027.html

Roman

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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