MonadFail decisions

David Luposchainsky dluposchainsky at
Fri Oct 16 16:09:37 UTC 2015

On 13.10.2015 16:29, Simon Peyton Jones wrote:
> Also, David, did our conversation at HX help you get un-stuck?

Hi Simon,

yes, it was definitely a good pointer. On the other hand, I found the Haskell
Exchange to be quite a frustrating event with respect to current events: there
was a load of very loud, but in my opinion very wrong, categorical opposition to
breaking changes in general.
I spent quite a bit of time worrying about MonadFail in the past, but right now
I'd like to wait for a "tentative yes" from the CLC before I keep going, because
I'm really not sure the mob is going to make me throw away my patch. Granted, a
lot of the discussion is about MRP, but many of the points brought up there are
equally valid against the MFP.


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