pub trait Visit: 'static + Sized {
fn visit<'a, T: 'static, R: VisitResult, F: FnMut(&'a T) -> R>(
&'a self,
f: F
) -> Result<(), VisitError<R::Error>> { ... }
fn visit_mut<T: 'static, R: VisitResult, F: FnMut(&mut T) -> R>(
&mut self,
f: F
) -> Result<(), VisitError<R::Error>> { ... }
fn visit_child<'a, T: 'static, E, F: FnMut(&'a T) -> Result<(), E>>(
&'a self,
f: &mut F
) -> Result<(), VisitError<E>> { ... }
fn visit_child_mut<T: 'static, E, F: FnMut(&mut T) -> Result<(), E>>(
&mut self,
f: &mut F
) -> Result<(), VisitError<E>> { ... }
fn visit_children<'a, T: 'static, E, F: FnMut(&'a T) -> Result<(), E>>(
&'a self,
_f: &mut F
) -> Result<(), VisitError<E>> { ... }
fn visit_children_mut<T: 'static, E, F: FnMut(&mut T) -> Result<(), E>>(
&mut self,
_f: &mut F
) -> Result<(), VisitError<E>> { ... }
}