#10178: hs-boot/hsig ambiguity empty data declaration or type with no constructors -------------------------------------+------------------------------------- Reporter: ezyang | Owner: ezyang Type: bug | Status: new Priority: lowest | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by ezyang): Similarly, when I write: {{{ class C a }}} it is ambiguous whether or not it is a fully-specified empty type class, or an abstract type class. In fact, for this one we don't even distinguish the two cases in an hi file. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10178#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler