Rust Traits

playground.rs

struct Person {
  id: i32,
  title: String
}

impl Person {
  fn new(id: i32, title: &str) -> Person {
    Person {
      id: id,
      title: title.to_string()
    }
  }
}

trait HasId {
  fn id(&self) -> i32;
}

trait HasTitle {
  fn title(&self) -> &str;
}

impl HasId for Person {
  fn id(&self) -> i32 {
    self.id
  }
}

impl HasTitle for Person {
  fn title(&self) -> &str {
    &self.title
  }
}

fn main() {
  let person = Person::new(1, "Jan");
  
  println!("{}: {}", person.id(), person.title());
}