#15050: ScopedTypeVariables could allow more programs -------------------------------------+------------------------------------- Reporter: nomeata | Owner: (none) Type: feature request | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.4.1 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 goldfire): I think comment:3 is a red herring. You're right that GHC rejects that type family, but that has more to do with the way that GHC does type-level GADT pattern matching than anything with scoped type variables. You could argue that it's suboptimal (though it matches what Agda does, I believe), but it's a separate matter from this ticket, I believe. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15050#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler