Re: [GHC] #10315: ApiAnnotations : Empty context loses annotations

#10315: ApiAnnotations : Empty context loses annotations -------------------------------------+------------------------------------- Reporter: alanz | Owner: alanz Type: bug | Status: closed Priority: normal | Milestone: 7.10.2 Component: Compiler | Version: 7.10.1 Resolution: duplicate | Keywords: Operating System: Unknown/Multiple | ApiAnnotations Type of failure: None/Unknown | Architecture: Blocked By: | Unknown/Multiple Related Tickets: #10354 | Test Case: | Blocking: | Differential Revisions: Phab:D836 | Phab:D868 -------------------------------------+------------------------------------- Comment (by Alan Zimmerman ): In [changeset:"0df14b5db06751f817d3ba794cc74ac54519b5b8/ghc"]: {{{ #!CommitTicketReference repository="ghc" revision="0df14b5db06751f817d3ba794cc74ac54519b5b8" ApiAnnotations : parens around a context with wildcard loses annotations Summary: In the following code, the extra set of parens around the context end up with detached annotations. {-# LANGUAGE PartialTypeSignatures #-} module ParensAroundContext where f :: ((Eq a, _)) => a -> a -> Bool f x y = x == y Trac ticket #10354 It turns out it was the TupleTy that was the culprit. This may also solve #10315 Test Plan: ./validate Reviewers: hvr, austin, goldfire Reviewed By: austin Subscribers: goldfire, bgamari, thomie, mpickering Differential Revision: https://phabricator.haskell.org/D868 GHC Trac Issues: #10354, #10315 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10315#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler