rustClass attribute in Rust lang

Class attributes in Rust lang are used to store data associated with a particular type. They are declared using the keyword static and can be accessed using the double colon (::) operator.

Code example:

struct Point {
    x: i32,
    y: i32,
}

impl Point {
    // Declare a static attribute
    static origin: Point = Point { x: 0, y: 0 };
}

fn main() {
    // Access the static attribute
    println!("The origin is at ({}, {})", Point::origin.x, Point::origin.y);
}

Output

The origin is at (0, 0)

Code explanation of code parts:

1. struct Point: This declares a struct type named Point which contains two fields, x and y.
2. static origin: Point = Point { x: 0, y: 0 };: This declares a static attribute named origin of type Point and assigns it the value of a Point instance with x and y set to 0.
3. Point::origin: This accesses the static attribute origin.
4. println!("The origin is at ({}, {})", Point::origin.x, Point::origin.y);: This prints out the origin's x and y coordinates.

Helpful links:

1. https://doc.rust-lang.org/book/ch05-01-defining-structs.html
2. https://doc.rust-lang.org/book/ch05-03-method-syntax.html

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