#9757: Warn about derivable instances -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: feature | Status: closed request | Milestone: Priority: normal | Version: 7.9 Component: Compiler | Keywords: Resolution: wontfix | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: | Related Tickets: None/Unknown | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by NeilMitchell): HLint knows nothing about types, has no translation to Core and only has approximate information about name binding. Your approach seems feasible in GHC, and it might do a reasonable job, but wouldn't be suitable in HLint. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9757#comment:9 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler