#11136: Associated type family: panic due to mismatch in arity of default instances -------------------------------------+------------------------------------- Reporter: airini | Owner: simonpj Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 7.10.2 checker) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Simon Peyton Jones <simonpj@…>): In [changeset:"49aae125686db914a73199d4f789370313892f8f/ghc" 49aae12/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="49aae125686db914a73199d4f789370313892f8f" Check arity on default decl for assoc types Fixes Trac #11136. We should check arity before doing tcTyClTyVars, because the latter crahes if the arity isn't right. }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11136#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler