Casting operator

as is a binary operator.

Accepts

1. Expression of any type
2. Expression of the same or another integer type

Returns the casted value.

Casting allowed:

• from integer to integer
• from enum to integer
• to the same type (no effect, no errors)

enum Order {
    First = 1,
}

let a = 1; // inferred as u8
let b = a as i8; // explicit casting to the opposite sign
let c: u8 = Order::First; // implicit casting to an integer