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I strongly agree with per-declaration warning suppression. But I'd like to
leave both warnings on by default in -Wall.
1. Sometimes an upstream library will drop a constraint. The warning lets
me know I can drop it too.
2. Sometimes an implementation evolves from a draft that requires a
To better elaborate : I definitely want this for the next major version
i.e. 8.2.* , but I'm also wondering if perhaps the "overly constrained
type" warning should be flat out removed from Wall even in ghc 8.0.2,
On Monday, June 6, 2016, Carter Schonwald
wrote:
>
It's a tall ask, but why not?
On Jun 6, 2016 12:16 PM, "Eric Seidel" wrote:
>
>
> On Mon, Jun 6, 2016, at 07:37, Carter Schonwald wrote:
> > I don't suppose there's any hope of having this resolved prior to GHC 8.2
> > because it is a real usability regression? Because I think we
On Mon, Jun 6, 2016, at 07:37, Carter Schonwald wrote:
> I don't suppose there's any hope of having this resolved prior to GHC 8.2
> because it is a real usability regression? Because I think we can all
> agree
> that the proposed change would not break any 8.0 series code, and
> positively
Strong emphatic agreement. Both that it should split up thusly and that the
latter shouldn't be in WALL. Otherwise it poisons the well for all be the
most sophisticated users of type level programming.
I don't suppose there's any hope of having this resolved prior to GHC 8.2
because it is a real
I've been bitten by this too and had to disable the warning.
Let me propose an alternative;
* -Wredundant-constraints becomes only your Warning 1. That is, it reports when
a user writes a constraint that is fully equivalent to some other, strictly
smaller constraint, like suggesting simplifying
CFP: WADT 2016 - 23rd International Workshop on Algebraic Development
Techniques (extended deadline)
Link: http://cs.swan.ac.uk/wadt16/
WhenSep 21, 2016 - Sep 24, 2016
Where Gregynog, UK
Submission Deadline June 17, 2016 (extended)
Notification
I couldn’t find an announcement of the new version of Haddock. You can now
document your libraries even more beautifully. For
example,
> -- \[
> -- f(k;n,p) = \Pr(X = k) = \binom n k p^k(1-p)^{n-k}
> -- \]
will render as