[Haskell-cafe] GHC API - list all exports of a module

[Alan & Kim Zimmerman]

Also, prior to GHC 7.10, there are serious gotchas to processing the GHC
API Parsed Source, as certain fields are initialised to a `panic "xxx"`
value, and should never be accessed.

Alan

On Mon, Feb 2, 2015 at 1:55 PM, Erik Hesselink <hesselink at gmail.com> wrote:

> On Mon, Feb 2, 2015 at 12:46 PM, Jochen Keil <jochen.keil at gmail.com>
> wrote:
> > Hello Peter,
> >
> > On 02.02.2015 12:31, Peter Simons wrote:
> >> Hi Jochen,
> >>
> >>  > My main goal would be to have a program which takes two modules of
> >>  > different versions, compare them and highlight the differences
> >>  > between them.
> >>
> >> maybe http://hackage.haskell.org/package/hackage-diff would work for
> >> your purposes?
> >
> > Thanks for the hint, this looks pretty good.
> >
> > One thing though: hackage-diff uses haskell-src-exts for parsing
> > modules. Does haskell-src-exts re-use the GHC API or does it run its own
> > parser? (from a quick glance I'd say the latter case)
>
> There are basically two routes to choose from with such a tool (of
> which a few already exist, I think): you can use GHC and its API, like
> you're doing, or you can use haskell-src-exts, which is a separate
> parser, and use haskell-names for name resolution (and
> haskell-packages for dependency information). Sadly there's no
> haskell-type-exts for typechecking (yet). The GHC route is probably
> more powerful, the haskell-suite route is simpler and doesn't depend
> on GHC.
>
> Regards,
>
> Erik
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