#15147: Type checker plugin receives Wanteds that are not completely unflattened -------------------------------------+------------------------------------- Reporter: nfrisby | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler (Type | Version: 8.4.1 checker) | Keywords: type checker Resolution: | plugins 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 nfrisby): Looking at `-ddump-tc-trace`, the compiler flattens the wanteds and then zonks them before passing them to the plugin. However, the zonking pass makes a substitution that re-introduces the fsk var. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15147#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler