2013/1/28 David Bruant <bruan...@gmail.com> > I don't understand why problem B isn't solved with the first proposal. > Since the proxy is pierced, access to private symbol'ed properties don't > trap and the proxy can't throw on access (since it's not trapped). > If I'm misunderstanding the proposal, could you show an example, under the > unconditional forwarding proposal in which the problem B can be reproduced. >
As noted on the wiki page: "It’s worth noting that revocable proxies (those created using Proxy.revocable) can still stop forwarding private symbol access when revoked. Hence, under this proposal, we solve problem A, but private symbol access remains “unreliable” (we don’t solve problem B)." i.e. the problem only exists for revocable proxies. When revoked, these set their [[Target]] to null. This implies that transparently forwarding private symbol lookups to the target will fail when revoked. Cheers, Tom
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