MonadFail proposal (MFP): Moving fail out of Monad

[Brandon Allbery]

On Wed, Jun 10, 2015 at 11:44 AM, David Feuer <david.feuer at gmail.com> wrote:

> It therefore seems really only to be suitable for
> pattern match failure and user-generated IOErrors
>

I feel like even that second one is not really appropriate. If you want a
user-generated IOError, create one yourself; don't make assumptions about
availability or API for what should really be considered a compiler or
language implementation detail.

-- 
brandon s allbery kf8nh                               sine nomine associates
allbery.b at gmail.com                                  ballbery at sinenomine.net
unix, openafs, kerberos, infrastructure, xmonad        http://sinenomine.net
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