Re: Extracting comments from the source code

Thanks folks. I was concerned I might be missing some dedicated way to achieve the same with the GHC API. I agree there's a fair chance this won't be noticeable in benchmarks. Cheers! Facundo On Fri, Jan 27, 2023 at 10:15 PM Ben Gamari wrote:

Facundo Domínguez writes:

...

Dear GHC devs,

I'm trying to port Liquid Haskell to ghc 9.2.5. And having much difficulty using the GHC API for a specific task, so I come here to ask about it.

As you may know already, Liquid Haskell needs to read special comments from Haskell source code which have the form {-@ ... @-}.

I agree with Santiago here: Data doesn't produce fantiastic code but I would guess that the cost of the traversal to collect your signatures will be negligible relative to the cost of the work you will later do later in your pipeline. I would leave optimising this until you know that it is a significant problem.

Cheers,

- Ben