Interfaces¶

Definition¶

supports export

inter Greetable {
    func greeting() -> String
}

# default implementation
func Greetable.greet() {
    println(self.greeting())
}

supports export

struct Person {
    name: String
    age: Number
}

func Greetable.greeting() for Person {
    return "Hello, my name is " + self.name
}

greetable: Greetable = Person(name: "aspizu", age: 21)
greetable.greet()