#12616: type synonyms confuse generalized newtype deriving role checking -------------------------------------+------------------------------------- Reporter: daviddarais | Owner: goldfire Type: bug | Status: new Priority: low | Milestone: Component: Compiler | Version: 8.0.1 Resolution: | Keywords: generalized | newtype deriving roles rankntypes 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: | -------------------------------------+------------------------------------- Changes (by goldfire): * owner: => goldfire Comment: I think this issue is just an infelicity in the code generator for GND. Should be easy to fix. NB: There are no higher-rank types in the example. Just a fancy type synonym. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12616#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler