Trait Visitor 

pub trait Visitor<T> {
    // Required methods
    fn pre_visit(&mut self, expr: &T);
    fn post_visit(&mut self, expr: &T);
}

Required Methods

fn pre_visit(&mut self, expr: &T)

fn post_visit(&mut self, expr: &T)

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors