#12245: Deriving Data at higher kinds -------------------------------------+------------------------------------- Reporter: simonpj | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by goldfire): Adding implication (quantified) constraints seems to be the answer to the underlying problem. See #2256. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12245#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler