How to get the reference of one object's parent

Question

hello guys
i have classA and classB like bellow
class ClassA{
public var myVar:String="test";
public function ClassA()
new ClassB();
class ClassB{
public function ClassB()
trace("my parent is"+XXX);
trace("my parent var is"+ XXX["myVar"]);
suppose XXX in classB is the reference of instance of ClassA.how do i get it?

Answer 1

Parent/child relationships pertain to display list only. When you instantiate ClassB in ClassA - it becomes a property of the scope where you instantiated it - NOT A CHILD. Note the word "scope" - variable may belong to class or function, etc.
Instance of a class is totally agnostic to who instantiated it unless you pass a reference of the class that made the instance. Nevertheless, of a class is a DisplayObject, once it is placed on display list - it knows who the parent is.
Instance can be either property or child or both proeprty and child.