[Haskell-cafe] GLR parser for Haskell?

[Brandon Allbery]

GLR support in happy is much younger than ghc is, it'd probably be a
massive amount of work to change now.

On Tue, Apr 20, 2021 at 6:57 AM Benjamin Redelings <
benjamin.redelings at gmail.com> wrote:

> Thanks, that is interesting.  I see this is a different type of grammar
> than in Parser.y, in that (for example) it does not have any actions on
> the rules.
>
> I'm still curious about why the GHC parser does not use a grammar that
> is closer to the language grammar.  Is this mostly for historical
> reasons?  Are GLR parsers too slow?  I don't know what fraction of the
> compilation time is spent in parsing, but would suspect it is not that
> much.
>
> -BenRI
>
> On 4/15/21 11:55 AM, Georgi Lyubenov wrote:
> > Hi!
> >
> > I think the updated tree sitter grammar might be relevant to you -Â
> > https://github.com/tree-sitter/tree-sitter-haskell
> > <https://github.com/tree-sitter/tree-sitter-haskell>
> >
> > Cheers,
> >
> > ======
> > Georgi
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-- 
brandon s allbery kf8nh
allbery.b at gmail.com
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