#12785: GHC panic, TypeFamily in equality constraint -------------------------------------+------------------------------------- Reporter: heisenbug | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.1 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 heisenbug): Hmmm, looks like a case is not implemented. in `tcTyVarDetails` this constructor should be checked: {{{#!haskell Id { varName :: !Name, realUnique :: {-# UNPACK #-} !Int, varType :: Type, idScope :: IdScope, id_details :: IdDetails, -- Stable, doesn't change id_info :: IdInfo } -- Unstable, updated by simplifier }}} '''Note:''' `setTcTyVarDetails` also looks like it is not total. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12785#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler