fn visit_all_in_iter_compound<T: SelectorVisitor<Impl = SelectorImpl>>(
    visitor: &mut T,
    iter: &mut SelectorIter<'_, SelectorImpl>,
) -> (bool, usize)Expand description
Visit all the simple selectors in the iter compound and return the number of simple selectors visited. We need to return a tuple because we need to keep track of two things:
- Should the traversal continue and
 - What the offset of the compound state is.