Deriving Traits

Additional Resources

• 5 traits your Rust types must implement

Exercises

Deriving on structs

// Complete the code by deriving the required traits.

struct Point {
    x: i32,
    y: i32,
}

fn main() {
    let my_point = Point { x: 20, y: 10 };
    let origin = Point::default();
    println!("Origin: {origin:?}");
    if my_point == origin {
        println!("Selected point is origin!");
    } else {
        println!("Selected point: {my_point:?}");
    }
}

#[derive(Default, Debug, PartialEq)]
struct Point {
  x: i32,
  y: i32,
}

fn main() {
  let my_point = Point { x: 20, y: 10 };
  let origin = Point::default();
  println!("Origin: {origin:?}");
  if my_point == origin {
      println!("Selected point is origin!");
  } else {
      println!("Selected point: {my_point:?}");
  }
}

Deriving on enums

// Only one trait needs to be derived. Can you figure out which?

enum Size {
    Small,
    Medium,
    Large,
}

fn main() {
    let my_size = Size::Small;
    if my_size == Size::Small {
        println!("I can fit in any size!");
    }
}

#[derive(PartialEq)]
enum Size {
  Small,
  Medium,
  Large,
}

fn main() {
  let my_size = Size::Small;
  if my_size == Size::Small {
      println!("I can fit in any size!");
  }
}