#10746: No non-exhaustive pattern match warning given for empty case analysis -------------------------------------+------------------------------------- Reporter: bgamari | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.2 Resolution: | Keywords: | PatternMatchWarnings Operating System: Unknown/Multiple | Architecture: Type of failure: Incorrect | Unknown/Multiple warning at compile-time | Test Case: Blocked By: | Blocking: Related Tickets: #7669, #11806 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by dfeuer): If I understand it correctly, empty case *always* forces its scrutinee, and thus should be considered complete if that is guaranteed to diverge. I don't really understand gkaracha's argument to the contrary, but he knows much more about this than I do, so I could be missing some key point. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10746#comment:14 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler