id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,os,architecture,failure,difficulty,testcase,blockedby,blocking,related
5662,GHCi crashes in context of banana bracket in arrow notation,Duschvorhang,,"Loading the attached haskell file in GHCi results in the following message. Compiling with ghc however is successful.

ghc.exe: panic! (the 'impossible' happened)
  (GHC version 7.0.3 for i386-unknown-mingw32):
	addTickHsExpr
    (|/\(@ a{tv ayK} [sk]).
      (arrows-0.4.4.0:Control.Arrow.Transformer.State.runState{v rgG} [gid])
      @ arr{tv ayH} [sk]
      @ ghc-prim:GHC.Types.Int{(w) tc 3J}
      @ a{tv ayK} [sk]
      @ ghc-prim:GHC.Types.Int{(w) tc 3J}
        $dArrow{v aCr} [lid]
        (((main:Main.goodArrow{v rp6} [lid])
          @ (arrows-0.4.4.0:Control.Arrow.Transformer.State.StateArrow{tc rgD}
               ghc-prim:GHC.Types.Int{(w) tc 3J} arr{tv ayH} [sk])
            $dArrowState{v aCs} [lid] -< b{v apd} [lid]))|)
",bug,closed,normal,,GHCi,7.0.3,duplicate,,,Windows,x86,GHCi crash,,,,,