On May 27, 2012, at 4:13 PM, Brendan Eich wrote: > David Bruant wrote: >> With this definition, it's not possible to subclass the DOM >> constructors, since they all throw. The DOM API itself would need to be >> changed to allow subclassing. > > Neither classes as proposed (sugar for the prototypal pattern) nor __proto__ > can fix the DOM. > > Note that Date has the same issue. You cannot make a SubDate because the > internal state is not exposed to subclassers via private names. Allen propose > to fix this, but I'm not sure of the proposal or status.
see my comments in https://mail.mozilla.org/pipermail/es-discuss/2012-May/022899.html proposal for subclass built-ins on the way... Allen
_______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
