// for compile error
#[derive(Debug)]
struct Rectangle {
width: u32,
height: u32,
sqr_rec: () => {}
}
fn main() {
let rect1 = Rectangle {
width: 30,
height: 50,
};
// ? tells compiler to output to console
println!("rect1 is {:#?}", rect1);
println!(
"The area of the rectangle is {} square pixels.",
area(&rect1)
);
}
fn area(rectangle: &Rectangle) -> u32 {
rectangle.width * rectangle.height
}
// 'Class' Method and Constructor (associated method (doesn't have self as fitst arg))
// Self = Struct Name ( Rectangle in this case)
impl Rectangle {
fn new() -> Self {
Self {
width: 100,
height: 100,
fn sqr_rec(&self)
fn sqr_rec(mut &self)
}
}
}
let rec1 = Rectangle::new();
let width = rec1.width;
let height = rect.height;