#8368: Panic in rejigConRes ------------------------------------+------------------------------------- Reporter: goldfire | Owner: goldfire Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.7 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+------------------------------------- When I compile the following erroneous code {{{ {-# LANGUAGE DataKinds, TypeFamilies, GADTs #-} import GHC.TypeLits data Foo = Bar data instance Sing (n :: Foo) where SBar :: Sing Foo }}} I get {{{ *** Exception: compiler/typecheck/TcTyClsDecls.lhs:1266:5-62: Irrefutable pattern failed for pattern Data.Maybe.Just subst }}} I think this is my fault. I will fix. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8368 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler