7 Apr
2022
7 Apr
'22
8:08 p.m.
Hi rowan, This seems like a bug (at least inconvenience) in the constraint solver. But it's already fixed to accept both versions in the newer releases of GHC. I've checked that ghc-8.8.3 and ghc-8.10.7 rejects with the type error you reported, while ghc-9.0.1 or newer accepts without any error. I think there's a filed issue in the issue tracker, but sorry I couldn't find. -- /* Koji Miyazato <viercc@gmail.com> */