Eric Blake writes:
> Making each output visitor provide its own output collection
> function was the only remaining reason for exposing visitor
> sub-types to the rest of the code base. Add a polymorphic
> visit_complete() function which is a no-op for input visitors,
> and which populates an op
Making each output visitor provide its own output collection
function was the only remaining reason for exposing visitor
sub-types to the rest of the code base. Add a polymorphic
visit_complete() function which is a no-op for input visitors,
and which populates an opaque pointer for output visitor
