[Haskell-cafe] RebindableSyntax and fail in GHC 8
cdsmith at gmail.com
Wed Dec 21 22:13:34 UTC 2016
Thanks for the response. It appears the bug was already reported in a
slightly different context. https://ghc.haskell.org/trac/ghc/ticket/11216
On Wed, Dec 21, 2016 at 6:24 AM, Richard Eisenberg <rae at cs.brynmawr.edu>
> Sounds like a bug to me.... and one I may have run into at some point.
> Would you care to file a bug report?
> > On Dec 20, 2016, at 3:53 AM, Chris Smith <cdsmith at gmail.com> wrote:
> > Hey everyone,
> > Can someone explain to me by GHC 8 causes list comprehension bindings to
> desugar to use 'fail', when RebindableSyntax is enabled in GHC 8? Note
> that I do not have monad comprehensions enabled. If I define fail,
> everything works (apparently regardless of what I define fail to do?!?),
> but I'd like to understand why it's necessary.
> > Thanks,
> > Chris
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