#12158: ghc: panic! (the 'impossible' happened) translateConPatVec: lookup -------------------------------------+------------------------------------- Reporter: wozgonon | Owner: gkaracha Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Resolution: | Keywords: | PatternMatchWarnings Operating System: Windows | Architecture: x86_64 Type of failure: Compile-time | (amd64) crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by gkaracha): Replying to [comment:5 simonpj]:
George, might you look at this? It's in the pattern-match checker.
Yes, I will take a look. It seems that the usage of the same name makes the checker crash for some reason, since the following {{{#!hs price' Stock{name=n,ric=r,price=p} = p }}} does not crash. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12158#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler