#1730: type families GHC "impossible happened"
-----------------------+----------------------------------------------------
Reporter: guest | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 6.8
Severity: normal | Keywords: type families panic
Difficulty: Unknown | Os: Unknown
Testcase: | Architecture: Unknown
-----------------------+----------------------------------------------------
the code: http://hpaste.org/2860?#a0
produces the following error:
$ ghci Foldable.hs
GHCi, version 6.8.0.20070921: http://www.haskell.org/ghc/ :? for help
Loading package base ... linking ... done.
[1 of 1] Compiling Data.Collections.Foldable ( Foldable.hs, interpreted )
ghc-6.8.0.20070921: panic! (the 'impossible' happened)
(GHC version 6.8.0.20070921 for i386-unknown-linux):
check_tau_type
main:Data.Collections.Foldable.FoldElem{tc rE4} t{tv aFj} [tv]
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1730>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler_______________________________________________
Glasgow-haskell-bugs mailing list
[email protected]
http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
