Le 15/06/2011 23:01, Tom Van Cutsem a écrit : > Just realized: even though an arrayProxy could update its fixed > "length" property, it would not be able to intercept updates "from the > outside" (i.e. updates to "length" by objects other than the handler). > I guess that capability is also needed to be able to "shrink" an array > if its "length" is decreased. In a way, the fixed properties proposal make proxies bicephal. For some inputs (property names), they plug their handler-provided MOP-brain and for some others, they plug a native object MOP-brain (ES5 - 8.12). These brains cannot communicate. This is why changing .length in the "native object brain" has no effect in the other brain (which handles numeric properties(...unless some of these are non-configurable)). And I think it has been said before, but there would be no logging possible for non-configurable properties in the context of the fixed properties strawman since native MOP-brain doesn't allow that.
David _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
