[Vala] Delegation in vala

["Кутейников Дмитрий" <kuteynikov gmail com>]

Can you add one really necessary feature to Vala: delegation?

It would be great if I could write something like this:

================================

 class A : Object {
   public void foo() {

       stdout.printf("Object A doing the job.");
     }
 };

class B : Object {

public delegation A a;
 };

================================

instead of this:

================================

 class A : Object {
   public void foo() {

       stdout.printf("Object A doing the job.");
     }
 };

class B : Object {

   public A a;
   public void foo() {

        a.foo();
     }
 };

================================

If there are lots of objects to delegate, there will be LOTS of unnecessary code with proxy methods.
And when I add/remove method from A, I need to change all B-like classes manually :(