#7975: "impossible" failure while type checking --------------------------------------+------------------------------------- Reporter: jonnadal | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler (Type checker) | Version: 7.6.3 Resolution: duplicate | Keywords: Os: MacOS X | Architecture: x86 Failure: Compile-time crash | Difficulty: Unknown Testcase: | Blockedby: Blocking: | Related: --------------------------------------+------------------------------------- Changes (by simonpj): * status: new => closed * difficulty: => Unknown * resolution: => duplicate Comment: Thanks. I'm guessing this is a dup of #7927, #7920, #7905, etc. Works in HEAD: {{{ T7975.hs:3:15: Couldn't match type ‛m0 (IO ())’ with ‛()’ Expected type: () -> t1 m0 (IO ()) Actual type: m0 (IO ()) -> t1 m0 (IO ()) In the second argument of ‛(.)’, namely ‛lift’ In the expression: lift . lift }}} -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7975#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler