#15172: Undecidable instances slip through -------------------------------------+------------------------------------- Reporter: simonpj | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.2.2 Resolution: | Keywords: 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:"af0757de4649ca562a0e9a624ebef155113531ab/ghc" af0757de/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="af0757de4649ca562a0e9a624ebef155113531ab" Check for type families in an instance context This patch adds a check for type families to the instance-decl termination check. See Note [Type families in instance contexts] and Trac #15172. }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15172#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler