Le 03/09/2011 00:33, David Herman a écrit : > The proxies page refers to Object.getPropertyDescriptor and > Object.getPropertyNames as the obvious operations that they ought to be, but > also points out that they aren't in ES5. Is there a part of the wiki specs > that explicitly state that they should be included in ES6? > > If not, we all agree they should be, yes? If i recall correctly, this proposal was on hold because of the fixed properties proposal (only getPropertyDescriptor I think). The idea was that if there is a getPropertyDescriptor trap, then it became impossible (or it would just require some proto-climbing with some performance issue?) to guarantee the invariants of non-configurable properties. But now that I think about it, i can't remember exactly what was the annoying use case.
Adding Tom in copy. Maybe he'll remember. David _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
