#10722: GHC accepts "instance forall b. Blah []" -------------------------------------+------------------------------------- Reporter: osa1 | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: GHC accepts | Unknown/Multiple invalid program | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by rwbarton): Well I don't care exactly how it is implemented, but logically it is a parse error yes. It is the same category of error as {{{ instance Int -> Blah [] where ... }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10722#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler