On 4/11/13 12:55 PM, Boris Zbarsky wrote:
On 4/11/13 12:50 PM, Allen Wirfs-Brock wrote:
Yes ES6 has "class-side" inheritance
OK. Should we be doing that with WebIDL interface objects, perhaps? It
would certainly make sense to me to do that, as long we we don't run
into web compat issues.
I've filed https://bugzilla.mozilla.org/show_bug.cgi?id=860841 with a
patch to do this. The specific behavior I'm implementing is that the
prototype of the interface object for interface X is the interface
object of the nearest ancestor of X that has one, and Function.prototype
if there is no such ancestor.
So for example, with that patch Object.getPrototypeOf(HTMLElement) ==
Element, and Object.getPrototypeOf(XMLHttpRequest) == EventTarget.
Note that this doesn't quite match the proto chain, because
Object.getPrototypeOf(XMLHttpRequest.prototype) is the prototype object
for the XMLHttpRequestEventTarget interface, but that interface is
[NoInterfaceObject].
-Boris
