Re: [GHC] #15793: Type family doesn't reduce with visible kind application

#15793: Type family doesn't reduce with visible kind application -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: (none) Type: bug | Status: closed Priority: normal | Milestone: 8.8.1 Component: Compiler | Version: 8.6.1 Resolution: fixed | Keywords: | TypeApplications Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: | typecheck/should_compile/T15793 Blocked By: | Blocking: Related Tickets: #15740 | Differential Rev(s): Phab:D5229 Wiki Page: | -------------------------------------+------------------------------------- Comment (by Richard Eisenberg ): In [changeset:"17bd163566153babbf51adaff8397f948ae363ca/ghc" 17bd1635/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="17bd163566153babbf51adaff8397f948ae363ca" Visible kind application Summary: This patch implements visible kind application (GHC Proposal 15/#12045), as well as #15360 and #15362. It also refactors unnamed wildcard handling, and requires that type equations in type families in Template Haskell be written with full type on lhs. PartialTypeSignatures are on and warnings are off automatically with visible kind application, just like in term-level. There are a few remaining issues with this patch, as documented in ticket #16082. Includes a submodule update for Haddock. Test Plan: Tests T12045a/b/c/TH1/TH2, T15362, T15592a Reviewers: simonpj, goldfire, bgamari, alanz, RyanGlScott, Iceland_jack Subscribers: ningning, Iceland_jack, RyanGlScott, int-index, rwbarton, mpickering, carter GHC Trac Issues: `#12045`, `#15362`, `#15592`, `#15788`, `#15793`, `#15795`, `#15797`, `#15799`, `#15801`, `#15807`, `#15816` Differential Revision: https://phabricator.haskell.org/D5229 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15793#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler