The unfortunate result, however, is that a subclass that is *more* restrictive than the base class is not possible to write robustly - namely, if someone does `Set.prototype.add.call`, they'll bypass any of the criteria you've set up in the subclass.
I would have vastly preferred that the base class for both Map and Set used SameValue, and I'd have found a "SameValueZero" subclass to be much more trivial to write robustly than a "SameValue" subclass is now. That ship, unfortunately, has long since sailed. On Wed, Oct 10, 2018 at 11:09 AM T.J. Crowder < [email protected]> wrote: > On Wed, Oct 10, 2018 at 7:03 PM Allen Wirfs-Brock > <[email protected]> wrote: > > Yes, exactly. > > Thanks! > > -- T.J. Crowder > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss >
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