#9182: Empty case analysis for function clauses -------------------------------------+------------------------------------ Reporter: dfranke | Owner: Type: feature request | Status: new Priority: low | Milestone: Component: Compiler | Version: 7.8.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by nomeata): Tricky. I believe the `The type signature for ‘empty’ lacks an accompanying binding.` message is emitted early, possibly during renaming, when there is no way to know that `Empty` is empty. Or are you suggesting to disable this error message completely when `EmptyCase` is active? And what’s wrong with writing `empty x = case x of { }`? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9182#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler