#14203: GHC-inferred type signature doesn't actually typecheck -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 8.2.1 checker) | Keywords: TypeInType, Resolution: | TypeFamilies 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 goldfire): The original programs should be rejected, I think. Looking at your simpler example, the declaration for `Foo` should be rejected as ambiguous. There's no way to tell from `z` what `a`, `x`, or `p` should be. When I continue my bug sweep, I'll take a look at this. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14203#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler