#7943: Malformed record leads to panic -------------------------------+-------------------------------------------- Reporter: scvalex | Owner: Type: bug | Status: new Priority: normal | Component: Compiler Version: 7.6.3 | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: Compile-time crash | Blockedby: Blocking: | Related: -------------------------------+-------------------------------------------- The following code makes GHC panic (note the extra String after B): {{{ data Foo = A { bar :: String } | B String { bar :: String } }}} {{{ % runhaskell Bug.hs ghc: panic! (the 'impossible' happened) (GHC version 7.6.3 for x86_64-unknown-linux): tc_hs_type: record Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}} -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7943 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler