#8026: DatatypeContexts should be fixed, not deprecated -------------------------------------+------------------------------------- Reporter: gidyn | Owner: Type: feature | Status: new request | Milestone: Priority: normal | Version: 7.6.3 Component: Compiler | Keywords: Resolution: | 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 simonpj): I urge you to read the OutsideIn(X) paper. I think that what you want in comment:21 is already fully implemented. You would declare `MVector` like this: {{{ data MVector m a where MVector :: PrimMonad m => !Int -> !Int -> !(MutableArray (PrimState m) a) -> MVector m a }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8026#comment:22 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler