#14773: MultiWayIf makes it easy to write partial programs that are not catched by -Wall -------------------------------------+------------------------------------- Reporter: SimonHengel | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.2 Resolution: | Keywords: | PatternMatchWarnings Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): The pattern-match overlap checker can do some simple things with guards, if memory serves; but it would indeed need a new entry point. At the moment we lack anyone with the time and inclination to pay attention to the pattern-match overlap checker. There's a great paper about it, but the actual implementation needs love and care. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14773#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler