#14932: DeriveAnyClass produces unjustifiably untouchable unification variables -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: patch Priority: normal | Milestone: 8.6.1 Component: Compiler (Type | Version: 8.4.1 checker) | Resolution: | Keywords: deriving Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects | Unknown/Multiple valid program | Test Case: Blocked By: | Blocking: Related Tickets: #13272, #14933 | Differential Rev(s): Phab:D4507 Wiki Page: | -------------------------------------+------------------------------------- Comment (by RyanGlScott): I'm biased, but I think so. I'm amazed `DeriveAnyClass` was working correctly at all before this patch! (Plus, the patch looks larger than it really is—at its core, it's quite small.) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14932#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler