#8273: ghc: panic! (the 'impossible' happened) -------------------------------------------------+------------------------- Reporter: ready2go | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.4.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | x86_64 (amd64) Test Case: Prelude> data Shape = | Difficulty: Circle Float Float Float | Rectangle Float | Unknown Float Float Float deriving (show) | Blocked By: Blocking: | Related Tickets: -------------------------------------------------+------------------------- Comment (by ready2go): The problem is triggered by my typing 'show' with a lower-case 'S' by newbie mistake in 'deriving(Show)' -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8273#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler