#13324: Allow PartialTypeSignatures in the instance context of a standalone deriving declaration -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 8.0.1 checker) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #10607 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by RyanGlScott): Replying to [comment:5 simonpj]:
Do you also, as #13415 implies, want the non-`deriving` case to work?
Indeed, I think that if I can figure out how to make it work for `deriving`, I don't think inferring constraints for arbitrary instances would be that fundamentally different in operation. Granted, I don't think I'm going to knock out both at the same time. Baby steps and all. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13324#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler