#16255: Visible kind application defeats type family with higher-rank result kind -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 8.7 checker) | Keywords: Resolution: | TypeApplications, TypeFamilies Operating System: Unknown/Multiple | Architecture: Type of failure: GHC accepts | Unknown/Multiple invalid program | Test Case: Blocked By: | Blocking: Related Tickets: #15740 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by RyanGlScott): Replying to [comment:3 goldfire]:
This should probably be done in the validity checker.
How would that possibly work? By the time we're in the validity checker, all we have are `CoAxBranch`es, which don't distinguish between required and specified arguments. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/16255#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler