realyuniquename / haxe-traits Goto Github PK

interface TSpeaker extends ITrait {
    public function say(msg:String) trace(msg);
}

interface TScreamer extends TSpeaker {
    public function scream(msg:String) this.say(msg.toUpperCase() + "!!!!!!");
}

interface TListener extends ITrait {
    var brain : Brain;

    public function update(){
        brain.process( listen() );
    }

    public function listen() : BrainInfo { 
        /* translate surrounding sounds to info undertandable by brain */
    }
}


interface TWatcher extends ITrait {
    var brain : Brain;

    public function update(){
        brain.process( watch() );
    }

    public function watch() : BrainInfo { 
        /* translate what i see to info understandable by brain */
    }
}


class Human extends Lifeform implements TWatcher, implements TListener {
    /**
    * This should be auto-generated if `update()` method is not defined by programmer
    */
    override public function update(){
        super.update();
        //this order should reflect `implements` directives order
        traits.Trait.parent(TWatcher).update();
        traits.Trait.parent(TListener).update();
    }
}

interface TFoo extends ITrait {
    /* these expressions should be added to descendant's constructor */
    var deg2rad : Float = Math.PI / 180;
    var bar : Bar = new Bar();   
}

class Foo extends Some implements TFoo {
    /**
    * This should be auto-generated
    */
    public function new() {
        super();
        this.deg2rad = Math.PI / 180;
        this.bar = new Bar();
    }
}