#10183: Warning for redundant constraints: interaction with pattern matching -------------------------------------+------------------------------------- Reporter: simonpj | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.4 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by goldfire): Does the fancy new pattern-match completeness checker help out here? Can GHC record somehow that a constraint is used when the completeness checker is thinking? In the meantime, does this mean the flag should be excluded from `-Wall` for 7.10? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10183#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler