#15664: Core Lint error -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.6.1-beta1 Resolution: | Keywords: TypeInType 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 Simon Peyton Jones <simonpj@…>): In [changeset:"4bdb10ca7ba14f00dd62270eadab4f93238227bc/ghc" 4bdb10ca/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="4bdb10ca7ba14f00dd62270eadab4f93238227bc" Fix Lint of unsaturated type families GHC allows types to have unsaturated type synonyms and type families, provided they /are/ saturated if you expand all type synonyms. TcValidity carefully checked this; see check_syn_tc_app. But Lint only did half the job, adn that led to Trac #15664. This patch just teaches Core Lint to be as clever as TcValidity. }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15664#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler