Lenses in rust (example prototype)

lens.rs

fn main() {
    let person1 = Person::new("Ted".to_owned(), 14);
    let name_lens = Person::name_lens();

    let person2 = (name_lens.set)(&person1, "Doe".to_owned());
    let person3 = (name_lens.set)(&person2, (name_lens.get)(&person1));
    let person3 = (Person::age_lens().set)(&person3, 22);
    println!("person1 {:?}", person1);
    println!("person2 {:?}", person2);
    println!("person3 {:?}", person3);
}

#[derive(Debug)]
pub struct Person {
    name: String,
    age: u32,
}

impl Person {
    pub fn new(name: String, age: u32) -> Self {
        Person { name: name, age: age }
    }

    pub fn name_lens() -> Lens<Person, String> {
        Lens {
            get: Box::new(|p: &Person| p.name.clone()),
            set: Box::new(|p, name| Person::new(name, p.age)),
        }
    }

    pub fn age_lens() -> Lens<Person, u32> {
        Lens {
            get: Box::new(|p: &Person| p.age),
            set: Box::new(|p, age| Person::new(p.name.clone(), age)),
        }
    }
}

pub struct Lens<A, B> {
    pub get: Box<Fn(&A) -> B>,
    pub set: Box<Fn(&A, B) -> A>,
}