#12363: Type application for infix -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: Type: feature request | Status: new Priority: lowest | Milestone: Component: Compiler | Version: 8.0.1 (Parser) | Keywords: Resolution: | TypeApplications 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): An extended version of the `Eq` example, {{{#!hs class Eq a where type Logic a (==) :: a -> a -> Logic a instance Eq b => Eq (a -> b) where type Logic (a -> b) = a -> Logic b (==) :: (a -> b) -> (a -> b) -> (a -> Logic b) (f == @(a->b) g) x = f x == @b g x }}} Yuck ugly -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12363#comment:11 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler