struct

This keyword is the most commonly used way to define datatypes in rust. Like an interface in typescript, or a struct in Go.

struct Car {
    x: i32,
    y: i32,
    brand: String,
}

impl

Similar to how you can add functions to a struct in Go, you can implement methods on a struct in Rust. Like this:

struct Car {
    x: i32,
    y: i32,
    brand: String,
}

impl Car {
    fn new(x: i32, y: i32, brand: String) -> Self {
        Self { x, y, brand }
    }

    fn drive(&mut self, distance: i32) {
        println!("driving: {} miles", distance);
        self.x += distance;
    }
}

fn main() {
    // create a new car
    let mut volvo = Car::new(0, 0, String::from("volvo"));
    // drive the car
    volvo.drive(10);
}

Other Notes

• Associated functions are kind of like class methods and associated constants are kind of like class members/enums. These are accessed with ::, e.g., Car::new()
• Calling stuff on the instances of a rust struct is done with normal dot notation e.g., volvo.drive()