Plan for GHC 8.6.1
carter.schonwald at gmail.com
Mon May 14 18:48:46 UTC 2018
Even aside from committee feedback easily being weeks away for such a
complex proposal, I’m also concerned about how the current proposed design
changes to core seem a bit fragile with linear types. Perhaps I’m
misunderstanding some of the current planned details , but I’m fairly
confident that I’ve got a median or better comprehension.
Type checking as if the code were inlined (per join points and related case
expressions as the linear core doc says ) tends to be a symptom of the
types not quite modelling the right information. Likewise would not that
sort of checking create a possible quadratic blowup when linting/ type
checking core? (And quadratic blowups are bad when debugging/checking
possibly large core programs in the core of any ghc debugging or the like
That said, putting a check point on phab for feedback of a technical sort
is def something that would help. The ghc proposal spec is vaguer than I’d
like for something like this. And a lot of important details I care about
will be visible in the code that are lacking in the associated proposal and
On Mon, May 14, 2018 at 11:02 AM Ben Gamari <ben at well-typed.com> wrote:
> Matthew Pickering <matthewtpickering at gmail.com> writes:
> > Perhaps Nested CPR will be ready :) ?
> > I am also working on the linear types branch. Arnaud is quite keen for
> > it to be ready for 8.6 but we still have a bit to go.
> I'll admit that I'm a bit worried that the linear types branch may be a
> bit late given that the proposal only went to the committee last week.
> That being said, I'm happy to keep all options on the table.
> Regardless, it might be a good idea to put up a patch sooner rather than
> later so we can begin the review process.
> - Ben
> ghc-devs mailing list
> ghc-devs at haskell.org
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