Static method in Rust 1.55

In Rust, static methods are defined using the impl block on the class/struct, and the impl block is associated with the name of the class/struct. The impl block includes all the methods that we want to define for that particular class/struct.

Here's an example of defining a static method in Rust 1.55:

struct Rectangle {
    width: u32,
    height: u32,
}
impl Rectangle {

    // defining a static method that returns a new instance of Rectangle struct

    fn new(width: u32, height: u32) -> Rectangle {

        Rectangle { width, height }

    }

}
fn main() {

    // calling the static method to create a new instance of Rectangle struct

    let rect = Rectangle::new(10, 20);

}

Here, we are defining a struct called Rectangle and defining a new static method inside impl Rectangle. The new method takes in two arguments width and height, creates a new instance of the Rectangle struct with the given dimensions, and returns it.

To call the static method, we use the syntax Rectangle::new(10, 20) and store the returned instance in the rect variable.

You can also call a static method directly on the struct, like this:

let rect = Rectangle::new(10, 20);

This creates a new Rectangle instance with the given dimensions and stores it in the rect variable.