#11316: Too many guards warning causes issues -------------------------------------+------------------------------------- Reporter: NeilMitchell | Owner: Type: bug | Status: new Priority: high | Milestone: 8.0.1 Component: Compiler | Version: 7.11 Resolution: | Keywords: 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 NeilMitchell): It seems that if the final guard is {{{| otherwise}}} you could short- circuit the entire analysis pass, since we immediately know what the result is going to be. In such circumstances, emitting a warning about a failed analysis which could be trivially avoided seems unnecessary. It would also provide a simple way for users with "excessively complex" guards to disable the warning, simply add {{{| otherwise -> error "GHC can't cope with this many guards"}}}. No need for the pragma then. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11316#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler