Equivalent of "super" in XBL?

[Greg Allen]

Is there an equivalent of the Java "super" in XBL?

I have two bindings, "a" and "b". Binding "b" extends "a". Both define
the method "method".

I'd like to be able to call a.method() from b.method(), after b.method has
done some other stuff.

Can this be done?

Thanks,

-- Greg

[Boris Zbarsky]

I _think_ that this.__proto__.__proto__.method should be the right thing
if you know b is the most-derived binding....

In the general case, though, you can't do it in xbl1. Not sure about xbl2.

-Boris

[Sean Hogan]

In XBL2 there is the baseBinding property on binding instances.
See http://www.w3.org/TR/xbl/#basebinding

[Andrew Sutherland]

On 03/30/2010 07:47 PM, Boris Zbarsky wrote:
> I _think_ that this.__proto__.__proto__.method should be the right thing
> if you know b is the most-derived binding....

Note that you would probably want to use 'call' (or 'apply') to avoid
'this' being the prototype instead of the actual instance:

this.__proto__.__proto__.method.call(this, ...);

or

this.__proto__.__proto__.method.apply(this, arguments);

Andrew