#7959: Panic on deriving nullary typeclass ---------------------------------+------------------------------------------ Reporter: monoidal | Owner: simonpj Type: bug | Status: patch Priority: normal | Milestone: Component: Compiler | Version: 7.7 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: Compile-time crash Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Comment(by krz.gogolewski@…): commit 967f746994802f50011a03c983417a6fca18de27 {{{ Author: Krzysztof Gogolewski <krz.gogolewski@gmail.com> Date: Mon Jun 3 17:07:23 2013 +0200 Fix panic on deriving a nullary typeclass (#7959) compiler/typecheck/TcDeriv.lhs | 8 +++++++- 1 files changed, 7 insertions(+), 1 deletions(-) }}} -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7959#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler