any luck using "retrie" refactoring tool on GHC sources?

Ben Gamari ben at
Mon Jan 24 14:23:26 UTC 2022

Norman Ramsey <nr at> writes:

> I'm trying to use the retrie refactoring tool, but I'm getting a
> mysterious error message: 
>     nr at homedog ~/a/g/compiler [1]> retrie --adhoc "forall x . not (backendNeedn'tLink x) == backendNeedsLink x"
>     parseAdhocs:1:80: error: parse error on input ‘#-}’
>     retrie: user error (parse failed)
> The Tool was installed using cabal install; its github page is
> Has anybody had any success using this tool on the GHC sources?
> I'd love a workaround, or just advice.
For what it's worth, Norman has reported this issue upstream as


- Ben
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 487 bytes
Desc: not available
URL: <>

More information about the ghc-devs mailing list