Le 15/12/2012 18:37, Boris Zbarsky a écrit :
On 12/15/12 12:34 PM, David Bruant wrote:
No, nothing of the sort. The example shows it _present_ on the global
(the third alert in my example) but missing from the WindowProxy
(fourth alert).
I'm comparing the second and fourth alert (that's not what the example
was created to show, but that's what it shows too). In the second alert,
there is the 'foo' property and it is non-configurable as per the spec,
because you var-declared it. In the 4th alert, the property has
magically disappeared.
Sure, but those aren't properties on the _global_. They're properties
on a different object.
Script authors can't observe the fact that it's a different object. They
just have access to one WindowProxy object (they know it's the same with
object identity). This object is the one that must show some consistency.
I agree there's a problem in terms of what getOwnPropertyDescriptor
returns for the property at the time of alert #2. Just want to make
sure we have the problem statement straight. ;)
Sounds good :-) These problems are subtle; I appreciate the help in
expressing them accurately.
Thanks,
David
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