#11806: GHC does not warn for mistakenly empty case -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.3 Resolution: | Keywords: | PatternMatchWarnings Operating System: Unknown/Multiple | Architecture: Type of failure: GHC accepts | Unknown/Multiple invalid program | Test Case: Blocked By: | Blocking: Related Tickets: #10746, #7669, | Differential Rev(s): #11390 | Wiki Page: | -------------------------------------+------------------------------------- Comment (by dfeuer): nomeata speaks my mind. When I said "inhabited", I meant properly inhabited. Empty case should issue a warning under the conditions he indicates. If the type of the scrutinee is not apart from the result types of all constructors, then I've made a mistake and I want to know about it. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11806#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler