#11451: Inconsistent warnings for unused binders -------------------------------------+------------------------------------- Reporter: simonpj | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.3 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 Lemming): From a software engineering point of view a warning about `instance C (Maybe a) where` could be useful to alert the programmer that he might have forgotten to add superclass constraints on `a`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11451#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler