#8132: Warning for Typeable instances misplaced -------------------------------------------------+------------------------- Reporter: scottgw | Owner: Type: bug | dreixel Priority: normal | Status: new Component: Compiler | Milestone: Resolution: | Version: 7.7 Operating System: Unknown/Multiple | Keywords: Type of failure: Incorrect warning at | Architecture: compile-time | Unknown/Multiple Test Case: | Difficulty: Blocking: | Unknown | Blocked By: | Related Tickets: -------------------------------------------------+------------------------- Comment (by dreixel): Replying to [comment:3 simonpj]:
I think we should turn the warning into an error.
But that breaks backwards compatibility in a serious way. Lots of code lying around gives manual `Typeable` instances right now, especially because that's the only way to define such instances in some cases. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8132#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler