#2907: generalized newtype deriving not working with polymorphic component
-----------------------------+----------------------------------------------
Reporter: jeltsch | Owner:
Type: feature request | Status: new
Priority: normal | Component: Compiler
Version: 6.10.1 | Severity: normal
Keywords: | Testcase:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
-----------------------------+----------------------------------------------
I’d like generalized newtype deriving to work also with polymorphic
components like in this example:
{{{
{-# LANGUAGE GeneralizedNewtypeDeriving, RankNTypes #-}
import Control.Monad.Cont
newtype PolyContT monad o = PolyContT (forall result. ContT result monad
o)
deriving (Monad)
}}}
Would this be possible?
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2907>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler_______________________________________________
Glasgow-haskell-bugs mailing list
[email protected]
http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
