Cross mixin references

test.ts

class EventEmitter {
	public fire(): void {
	}
}

//-----------------------------------------------------------------

interface ICanFire {
	fire(): void;
}

interface IModel {
	do(): void;
}

class Model {
	private _emitter: ICanFire;
	constructor(emitter: ICanFire) {
		this._emitter = emitter;
	}
	
	do() {
		this._emitter.fire();
	}
}

//-----------------------------------------------------------------

interface AppApi extends EventEmitter, IModel {
}

class App {
	private _emitter: EventEmitter;
	private _model: Model;
	
	constructor() {
		this._emitter = new EventEmitter();
		this._model = new Model(this._emitter);
	}
	
	public getApi(): AppApi {
		return {
			fire: this._emitter.fire.bind(this._emitter),
			do: this._model.do.bind(this._model),
		}
	}
}