mixin MundoCerrado {
var property a = 2
method noVaAAndar() = a == self.b()
method b()
}
class Mundo {
var property b = ""
}
class MundoFeliz inherits Mundo {
var property c = true
}
Consola REPL:
var yo = new MundoFeliz(c = 1, b = 2) with MundoCerrado
Consola REPL: