#11350: Allow visible type application in patterns -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.1 Resolution: | Keywords: | TypeApplications PatternSynonyms 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 Iceland_jack): While commenting on #11441, what about lambdas? {{{#!hs -- Should work, given proposal. id :: forall a. a -> a id @a x = x -- Also. id :: forall a. a -> a id (@ a) (x :: a) = x -- What about this? id :: forall a. a -> a id = \ (@ a) (x :: a) -> x -- Or this id :: b -> b id = \ (@ a) (x :: a) -> x }}} Same question extends to `LambdaCase`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11350#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler