#13680: Can't use TypeApplications with empty list expression -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 8.0.1 checker) | Keywords: Resolution: | TypeApplications Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects | Unknown/Multiple valid program | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by RyanGlScott): Actually, this limitation applies to more than just empty lists: {{{ $ ~/Software/ghc-8.2.0.20170507/bin/ghci -fprint-explicit-foralls GHCi, version 8.2.0.20170507: http://www.haskell.org/ghc/ :? for help Loaded GHCi configuration from /Users/rscott/.ghci λ> :type +v [1] [1] :: forall {a}. Num a => [a] λ> :type +v [1] @Int <interactive>:1:5: error: parse error on input ‘@’ }}} So perhaps I was barking up the wrong tree in my investigation in comment:4. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13680#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler