#7696: Another kindFunResult panic -----------------------------+---------------------------------------------- Reporter: nwf | Owner: Type: bug | Status: new Priority: normal | Component: Compiler Version: 7.6.2 | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Blockedby: Blocking: | Related: -----------------------------+---------------------------------------------- While working at the GHCi prompt, I left off a pair of parens, yielding: {{{
import Control.Applicative import Control.Monad.Trans :type \x -> (either (fmap Right) id) <$> lift $ x ghc: panic! (the 'impossible' happened) (GHC version 7.7.20130214 for x86_64-unknown-linux): kindFunResult <<details unavailable>>
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}} Replacing `<$> lift $ x` with `<$> (lift $ x)`, which is what I'd meant, makes everybody happier. But as this happens in both 7.6.2 and 7.7.20130214, I thought I should do what it says and report it. Thanks! -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7696 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler