Classes

Classes are defined like so:

pub class Calculator:
    init:
        i32 this.current_value = 0

    fn subtract(i32 x) -> int:
        return this.current_value - x

Instantiating Classes

To create an instance of a class, use the new keyword:

let calc = new Calculator()

You can then call methods on the instance:

calc.subtract(5)

Member variables are defined inside the init block. They are accessed using this:

pub class Counter:
    init:
        i32 this.count = 0

    fn increment():
        this.count = this.count + 1

The init block acts as the constructor and is called when a new instance is created. You can add parameters to initialize member variables:

pub class Point:
    init(i32 x, i32 y):
        i32 this.x = x
        i32 this.y = y

Classes can inherit from other classes using the : syntax:

pub class AdvancedCalculator : Calculator:
    fn multiply(i32 x) -> int:
        return this.current_value * x