#15557: Reduce type families in equations' RHS when testing equation compatibility -------------------------------------+------------------------------------- Reporter: mniip | Owner: (none) Type: feature request | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler (Type | Version: 8.4.3 checker) | Resolution: | Keywords: TypeFamilies Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects | Unknown/Multiple valid program | Test Case: Blocked By: | Blocking: Related Tickets: #8423 #15546 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by goldfire): I agree with the PS in comment:6. I see this as a pure feature request, not a bug. The behavior in comment:1 is consistent with the design of closed type families in the paper and the manual. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15557#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler