- From: Boris Zbarsky <bzbarsky@MIT.EDU>
- Date: Sun, 08 May 2011 21:19:47 -0400
- To: Allen Wirfs-Brock <allen@wirfs-brock.com>, public-script-coord@w3.org
On 5/8/11 6:28 PM, Cameron McCormack wrote:
> * [[GetOwnProperty]] does:
> * If the property name is a current indexed property, then return
> a {configurable:false,enumerable:true,get:fn} where fn returns the
> relevant Node.
Why is this better than just returning a value descriptor with the right
node? I can see at least one way in which it's worse: it involves
reifying some sort of per-index getter function...
The upshot of this proposal is that array properties just shadow
"normal" properties, right? I'm in favor of that, whatever we need the
spec-lawyering to be to make it work.
> The above ignores fixed objects. What to do when freeze/seal/
> preventExtensions is called is another question, and one I haven’t
> tested current UA behaviour for. If it’s compatible
1) I doubt it is (but please do test).
2) Which UAs actually implement those at this point?
> we might like to allow converting a live NodeList into a dead one with freeze.
Hmm. So it would affect what item() returns too? That could be a
little odd... But I suppose livable.
-Boris
Received on Monday, 9 May 2011 01:20:17 UTC