What are the exact rules of auto-dereferencing in Rust?

Hello everyone! I started learning Rust recently and I can't figure out auto-dereferencing. The documentation says that the compiler automatically dereferences references when necessary, but I keep getting confused. Here's a simple example. I have a `Point` struct with a `distance_from_origin` method. I create an instance, then a reference to it, then a reference to the reference, and try to call the method: ```rust struct Point { x: f64, y: f64, } impl Point { fn distance_from_origin(&self) -> f64 { (self.x.powi(2) + self.y.powi(2)).sqrt() } } fn main() { let p = Point { x: 3.0, y: 4.0 }; let r1 = &p; // &Point let r2 = &&p; // &&Point let r3 = &&&p; // &&&Point println!("{}", p.distance_from_origin()