[Haskell-cafe] -fdefer-type-errors

[Artem Pelenitsyn]

I checked the release prior to 8.0.1 — 7.10.3, and it worked as expected
(returned `True`). This looks like a bug introduced somewhere in between. I
wish I could do git bisect on GHC properly…

Worth reporting, I guess.

--
Best, Artem

On Wed, 17 Apr 2019 at 16:26, Tom Ellis <
tom-lists-haskell-cafe-2017 at jaguarpaw.co.uk> wrote:

> On Wed, Apr 17, 2019 at 04:17:17PM -0400, Bill Hallahan wrote:
> > However, with GHC 8.2.2, I get an error when trying to do this:
> [...]
> > Prelude> let foo = (True, 'a' && False)
> [...]
> > Prelude> fst foo
> > *** Exception: <interactive>:1:18: error:
> >     • Couldn't match expected type ‘Bool’ with actual type ‘Char’
>
> FWIW I see this behaviour in GHC 8.0.1 too.
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