#8021: Multiple constraint classes - the alternative to superclass -------------------------------------+------------------------------------ Reporter: wvv | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by wvv): And this is only tip of the iceberg. Now we have discussion about (Monad m) vs. (Functor m => Monad m). With class interfaces it is not an option: we have them both(!!!) {{{ class Monad m where ... class Functor m => Applicative m => Monad m where .. }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8021#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler