Inherent methods

impl Type attaches inherent methods. A method's first parameter is self: Type; call it with receiver syntax and supply only the remaining arguments.

Methods may be public, generic, or async. Receiver selection also works through a managed pointer without exposing a raw address.

struct Point { x: int, y: int }

impl Point {
  fn move(self: Point, dx: int, dy: int) -> Point {
    Point { x: self.x + dx, y: self.y + dy }
  }
}

fn main() {
  let point = Point { x: 1, y: 2 }.move(3, 4)
  println("${point.x},${point.y}")
}