#9515: Deprecate -XExplicitForAll -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: feature | Status: new request | Milestone: Priority: normal | Version: 7.8.3 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 rwbarton): FWIW I don't regard `ScopedTypeVariables` as changing the semantics of `forall`. Rather it changes the meaning of type variables in type ascriptions and non-top-level type declarations depending on whether those variables were mentioned in a particular syntactic form involving `forall`. As such I don't experience any cognitive dissonance when thinking about ExplicitForall, RankNTypes, ScopedTypeVariables, and their various combinations. I realize that this is a subtle distinction and that `ScopedTypeVariables` is often described as bestowing a special new meaning on the keyword `forall`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9515#comment:14 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler