#13742: Code using ConstraintKinds needs explicit kind signature with GHC 8.2.1 -------------------------------------+------------------------------------- Reporter: albertov | Owner: (none) Type: bug | Status: new Priority: highest | Milestone: Component: Compiler (Type | Version: 8.2.1-rc2 checker) | Keywords: Resolution: | ConstraintKinds, KindSignatures Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects | Unknown/Multiple valid program | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Iceland_jack): Replying to [comment:5 goldfire]:
A fix would be to parameterize `(,)` by a `Constraintiness` parameter, as discussed [https://github.com/ghc-proposals/ghc-proposals/pull/32 here].
Any idea how much work adding it is? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13742#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler