[ghc-steering-committee] #344: Negative Literals Improved, rec: accept
Joachim Breitner
mail at joachim-breitner.de
Wed Jul 22 15:28:04 UTC 2020
Hi,
great, so I declare consensus will accept that proposal now.
Cheers,
Joachim
Am Mittwoch, den 22.07.2020, 08:25 -0700 schrieb Iavor Diatchki:
> Huh, good to know. I just looked at how it is done, and we are literally peeking at the characters surrounding tokens and running a bit of Haskell to guess the classification of the previous/next token. Seems a bit brittle but I guess this is not something that is likely to change. I am also surprised it didn't slow down the lexer, but maybe it's lost in the noise.
>
> Anyway, I don't have a strong opinion on the proposal as this is an extension I never use, but the proposed behavior seems more intuitive for humans, so it seems reasonable to accept it.
>
> Iavor
>
> On Wed, Jul 22, 2020, 06:49 Richard Eisenberg <rae at richarde.dev> wrote:
> >
> > > On Jul 22, 2020, at 1:43 PM, Joachim Breitner <mail at joachim-breitner.de> wrote:
> > >
> > > > Just as a note, I never quite understood how we plan to implement
> > > > #229---is it supposed to be done through state in the lexer, or do we
> > > > have a simple lexer that keeps all tokens, including white space, and
> > > > then write a post-processing function to glue and rejigger tokens?
> > >
> > > No idea here.
> >
> > #229 is in fact already implemented: https://gitlab.haskell.org/ghc/ghc/-/merge_requests/1664 I don't remember the details to explain them, but I don't think it turned out hard to implement.
> >
> > Richard
> > _______________________________________________
> > ghc-steering-committee mailing list
> > ghc-steering-committee at haskell.org
> > https://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-steering-committee
>
> _______________________________________________
> ghc-steering-committee mailing list
> ghc-steering-committee at haskell.org
> https://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-steering-committee
--
Joachim Breitner
mail at joachim-breitner.de
http://www.joachim-breitner.de/
More information about the ghc-steering-committee
mailing list