On Tue, Apr 29, 2014 at 8:08 PM, Mark S. Miller <[email protected]> wrote: >> There aren’t any internal invariant sensitivities that I could find. Once >> such a non-standard descriptor is never directly used by any of the ordinary >> object MOP operations > > I'm surprised and alarmed by this, and it seems wrong. It is also not what I > think I remember. What about, for example, the invariant that an object > cannot both claim that a property is non-configurable but then later change > its alleged configuration?
As specified, proxies can do this: js> Object.isFrozen(proxy) true js> Object.getOwnPropertyDescriptor(proxy).configurable true Of course the property is not really configurable. The extent of the issue is that Object.getOwnPropertyDescriptor is not a reliable reflection API. -j _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
