#15138: Unable to instantiate data members of kind Nat in backpack signatures. -------------------------------------+------------------------------------- Reporter: ppk | Owner: (none) Type: bug | Status: patch Priority: normal | Milestone: 8.8.1 Component: Compiler | Version: 8.4.1 Resolution: | Keywords: backpack Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D4951 Wiki Page: | -------------------------------------+------------------------------------- Comment (by ppk): I think the issue was a wild card pattern match gone wrong. The sharp eyes of @bgamari spotted it. The changes have been pushed to Phab. I think this patch is ready to land -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15138#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler