#7873: A poly-kinded newtype existential crisis --------------------------------------+------------------------------------- Reporter: ekmett | Owner: Type: bug | Status: new Priority: normal | Component: Compiler Version: 7.6.3 | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: GHC rejects valid program | Blockedby: Blocking: | Related: --------------------------------------+------------------------------------- Comment(by ekmett): It appears that as long as the module that defines Magic doesn't have PolyKinds enabled, everything works, even if Proxy and even Reifies, etc. were compiled with PolyKinds enabled, so I can probably hack around this by doing some creative importing, but this does seem to indicate that turning on PolyKinds makes a lot fewer things valid newtypes. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7873#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler