#13341: Lift constraint products -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: (none) Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 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 Iceland_jack): The empty constraint tuple `()` becomes the unit of `:&:` {{{#!hs class Empty a instance Empty a }}} `:&:` and `Empty` would presumably be added to *base*. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13341#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler