How to Collect Type Errors?

Guanda Yuan guandayuan0715 at
Fri Aug 6 18:43:51 UTC 2021

Hello Matthew,

During the time I have already figured the problem out. My original thought
is to log the errors from code to some file. Later I did find a function
being able to collect the diagnostics.

On the other hand, I'm new to the mailing list, and after I asked
the question I have further understood what the list is for. I think that
my question should be not suitable for the list, and sorry for that.


Matthew Pickering <matthewtpickering at> 于2021年8月2日周一 上午4:04写道:

> Hi Gunda,
> Could you be a bit more precise about what you want to achieve? HLS
> already displays type errors in your program, perhaps it would be
> better to ask someone on the HLS issue tracker how to use their API to
> do what you want.
> Matt
> On Fri, Jul 30, 2021 at 7:03 PM Guanda Yuan <guandayuan0715 at>
> wrote:
> >
> > Hello all,
> >
> > I want to write a plugin for Haskell Language Server, to collect type
> errors in the code. I'm new to GHC API, so I need some help. My current
> thought is, I can collect diagnostics or the error messages and extract the
> type error infos. I have tried to referred to the Haddock documentation for
> GHC API, but I'm still not sure which function should I use.
> >
> > Thanks,
> > Guanda
> > _______________________________________________
> > ghc-devs mailing list
> > ghc-devs at
> >
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the ghc-devs mailing list