#15932: DeriveFunctor and GeneralizedNewtypeDeriving instances never reporting as covered -------------------------------------+------------------------------------- Reporter: davean | Owner: (none) Type: bug | Status: new Priority: low | Milestone: 8.6.3 Component: Code Coverage | Version: 8.6.2 Resolution: | Keywords: newcomer Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by bgamari): * keywords: => newcomer Comment: I suspect this wouldn't be too hard to fix. The relevant implementation bits can be found in `deSugar/Coverage.hs`; I would start by looking at the `-ddump-ds` output to verify that there are no coverage ticks in the derived instances. If this really is the issue then I suspect a solution should be straightforward. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15932#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler