Andreas Rossberg wrote:
On 22 April 2013 22:15, Allen Wirfs-Brock<[email protected]> wrote:
We don't currently have the concept of an object "belonging" to a realm.
Functions have a realm association, but not non-function object.
I thought the current plan of record is to require this check for
reflected uses of protosetter.call? So I don't see how we can avoid
introducing that concept (and to answer Mark's question re
implementation: in V8 at least it has always been available -- it may
be that the DOM already requires it, but I'm not sure).
In practice, all engines must classify objects by realm, somehow.
Usually by GC-page-cluster or "compartment".
My only new(?) observation was that we already need that check for
unreflected uses if we are serious about maintaining the invariant
that I thought we intended to maintain. And as a consequence, we don't
actually need any magic for __proto__. You should like that. :)
Yes! The magic goes away (except that ({__proto__: ...}) is still a
special form).
/be
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