#8478: Compilation crash with "kindFunResult" -----------------------------------+--------------------------------------- Reporter: bartavelle | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Keywords: | Operating System: Linux Architecture: | Type of failure: Compile-time crash Unknown/Multiple | Test Case: Difficulty: Unknown | Blocking: Blocked By: | Related Tickets: | -----------------------------------+--------------------------------------- The following (invalid) program triggers this error : {{{ $ ghc -Wall test.hs [1 of 1] Compiling Xxx ( test.hs, test.o ) test.hs:11:12:ghc: panic! (the 'impossible' happened) (GHC version 7.6.3 for x86_64-unknown-linux): kindFunResult ghc-prim:GHC.Prim.*{(w) tc 34d} Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}} {{{ module Xxx where import qualified Test.Hspec as H import qualified Test.Hspec.Core as HC import Control.Monad.Reader type PSpecM = ReaderT [Int] HC.SpecM type PSpec = PSpecM () describe :: String -> PSpec -> PSpec describe = lift . H.describe }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8478 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler