#15827: Explicit foralls in type family equations are pretty-printed inconsistently (and strangely, at times) -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.7 Resolution: | Keywords: TypeFamilies 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 RyanGlScott): OK. In that case, my tentative plan is to: * Not print the coercion variables at all. * Pretty-print the type variables by first converting them to `IfaceForAllBinder`s (defaulting their visibilities to specified //à la// `mkSpecForAllTys`) and then using a function like `pprIfaceForAll` to pretty-print them with the explicit `forall` syntax. Does that sound reasonable? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15827#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler