#11456: Type application and :set +c command cause panic -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: Type: bug | Status: closed Priority: normal | Milestone: 8.0.1 Component: Compiler | Version: 8.1 Resolution: fixed | Keywords: | TypeApplications GHCi Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: | ghci/scripts/T11456 Blocked By: | Blocking: Related Tickets: #11329 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Iceland_jack): Error2.hs fails, seems like same problem and can be added to the test suite: {{{ $ ghci -ignore-dot-ghci GHCi, version 8.1.20160117: http://www.haskell.org/ghc/ :? for help Prelude> :set +c Prelude> :load /tmp/Error2.hs [1 of 1] Compiling Main ( /tmp/Error2.hs, interpreted ) Ok, modules loaded: Main. Collecting type info for 1 module(s) ... Error while getting type info from Main: ghc: panic! (the 'impossible' happened) (GHC version 8.1.20160117 for x86_64-unknown-linux): dsExpr:HsTypeOut Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug *Main> }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11456#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler