#14570: Untouchable error arises from type equality, but not equivalent program with fundeps -------------------------------------+------------------------------------- Reporter: lexi.lambda | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 8.0.2 checker) | Resolution: | Keywords: 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: | -------------------------------------+------------------------------------- Changes (by dfeuer): * cc: dfeuer (added) Comment: At the least, this is a rather poor error message. I don't think it's terribly reasonable to expect users to read and understand near-cutting- edge papers about type inference in order to understand what they've done wrong and how they might fix it. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14570#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler