#10270: inconsistent semantics of type class instance visibility outside recursive modules -------------------------------------+------------------------------------- Reporter: skilpat | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.1 Resolution: | Keywords: Operating System: MacOS X | Architecture: x86_64 Type of failure: GHC rejects | (amd64) valid program | Test Case: Blocked By: | Blocking: Related Tickets: #9562 | Differential Revisions: -------------------------------------+------------------------------------- Comment (by simonpj): I rather agree that the one-shot story is the right one. And yes, the two should agree. Edward I recall that we had extensive discussion about how to arrange that the right instances are in scope. We had a New Plan; but (a) I have forgotten the plan and (b) I'm not sure whether it was ever implemented. Can you remind me? Simon -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10270#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler