It sounds like this might also be useful to retain the information needed to rebind super for descriptors that go directly from Object.getOwnPropertyDescriptor to Object.defineProperty.
On Thu, Nov 22, 2012 at 5:05 PM, Allen Wirfs-Brock <[email protected]>wrote: > You can see the pseudo code very soon... > > But, consider that [[GetOwnProperty]] needs to return a descriptor record > for internal use, and Object.getOwnPropertyDescriptor needs to use > [[GetOwnProperty]] to properly dispatch to different kinds of objects. Get > get an exotic descriptor back from the Proxy [[GetOwnProperty]] > implementation there needs to be a way to pass a regular object that might > include exotic attributes along so that Object.getOwnPropertyDescriptor can > return it. > > It doesn't effect anything in any JS level APIs, just makes them work with > exotic property descriptors. > > Allen > > > > On Nov 22, 2012, at 1:51 PM, David Bruant wrote: > > > Hi, > > > > From the Bugzilla [1], Allen: > > "(...) in rev 12 [property descriptors] have been enhanced to include a > reference to the object (if any) they were produced from. This permits an > descriptor object to pass through the traps behind > Object.getOwnpropertyDesceriptor and Object.defineOwnProperty without > loosing any extension attributes" > > I'm not sure I fully understand how this would work. > > Would it affect current calls? > > > > David > > > > [1] https://bugs.ecmascript.org/show_bug.cgi?id=863#c1 > > _______________________________________________ > > es-discuss mailing list > > [email protected] > > https://mail.mozilla.org/listinfo/es-discuss > > > > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss >
_______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
