[Haskell-cafe] Best practices for linting wrt performance

[Oliver Charles]

Ah, I stand corrected. Thanks!

On Sun, Mar 19, 2017 at 10:46 PM Joachim Breitner <mail at joachim-breitner.de>
wrote:

> Hi,
>
> no. A case in Haskell does not necessary force evaluation (in contrast to
> a case in Core).
>
> Greetings,
> Joachim
>
> Am 19. März 2017 16:24:18 EDT schrieb Oliver Charles <
> ollie at ocharles.org.uk>:
> >Is that "redundant case" actually acting like seq?
> >
> >On Sun, Mar 19, 2017 at 7:39 PM Adam Bergmark <adam at bergmark.nl> wrote:
> >
> >> Thanks Joachim! I actually found a note about that in the aeson
> >sources so
> >> I'm using
> >>
> >> ignore "Avoid lambda"
> >> ignore "Eta reduce"
> >>
> >> Cheers,
> >> Adam
> >>
> >>
> >> On Sun, 19 Mar 2017 at 17:34 Joachim Breitner
> ><mail at joachim-breitner.de>
> >> wrote:
> >>
> >> Hi,
> >>
> >> Am Sonntag, den 19.03.2017, 16:19 +0000 schrieb Adam Bergmark:
> >> > The best way to find an answer to this for aeson is of course to
> >run
> >> > the benchmarks, but are there any rules-of-thumb that you take into
> >> > account when linting?
> >>
> >> eta-reduction can increase sharing but can also increase the cost of
> >a
> >> function call, so that’s something to be careful about.
> >>
> >> Greetings,
> >> Joachim
> >> --
> >> Joachim Breitner
> >>   mail at joachim-breitner.de
> >>   http://www.joachim-breitner.de/
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