Re: Proposal to solve the `EitherT` problem.

If EitherT merged into transformers, I'd happily just move the instance into the semigroup and semigroupoid packages respectively. On Sun, Jun 16, 2013 at 6:12 PM, Gabriel Gonzalez wrote:

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

...

* Gabriel Gonzalez [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.htmlhttp://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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