#10971: ExtendedDefaultRules defaults to [] for Foldable/Traversable -------------------------------------+------------------------------------- Reporter: kanetw | Owner: kanetw Type: feature request | Status: patch Priority: normal | Milestone: 8.0.1 Component: Compiler | Version: 7.10.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #10963 | Differential Rev(s): phab:D1329 Wiki Page: | -------------------------------------+------------------------------------- Comment (by Thomas Miedema <thomasmiedema@…>): In [changeset:"bb7e93c9c78bdf746e34cf6715eeffa6dd5682de/ghc" bb7e93c/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="bb7e93c9c78bdf746e34cf6715eeffa6dd5682de" Extended default rules now specialize Foldable, Traversable to [] (#10971) Default rules deliberately accept any kind. Reviewed By: simonpj, thomie, goldfire Differential Revision: https://phabricator.haskell.org/D1329 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10971#comment:8> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler