export class Prop<T> {
	constructor(private value: T, private onChangedCallback: (oldValue?: T, value?: T) => void, private callbackThis: Object) {
		
	}
	
	get(): T {
		return this.value;
	}
	
	set(value: T): void {
		if (this.get() === value) return;
		var oldValue = this.value;
		this.value = value;
		if (this.onChangedCallback) this.onChangedCallback.call(this.callbackThis, oldValue, value);
	}
	
	toString(): string {
		return '[Prop ' + this.value + ']';
	}
}

export default Prop;