#15167: DerivClause list is not populated for (TyConI (DataD ...)) -------------------------------------+------------------------------------- Reporter: 0xd34df00d | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Template Haskell | Version: 8.4.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by 0xd34df00d): Thanks for getting to my report! Seems like `reifyInstances`'s documentation could also be slightly improved: it's not entirely obvious from it right now that it can/should be used to get the list of instances for a data type. Indeed, for the above example, how does one use it to get something about `Eq, Ord, Show` without knowing a priori that those are the classes that `Foo` implements? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15167#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler