Le 13/12/2012 00:51, Mark S. Miller a écrit :
On Wed, Dec 12, 2012 at 11:19 AM, David Bruant <[email protected]> wrote:
[...]
* change the behavior of WindowProxy instances when it comes to doing things
that would commit them to eternal invariants to throw instead of forwarding.
This solution may still be possible, because it's unlikely that
Object.defineProperty is widely used in web content today. But this change
should happen pretty fast before content relies on it.
I think this is the only viable solution.
Ok. What do you think of the idea of different handlers based on
context? [1]
The current behavior violates ES5 in an unintended way[1].
Just to clarify, invariants described in ES5.1 - 8.6.2 are violated.
As you say, to remain viable, it
must be done quickly. From previous experience, I suggest that there's
exactly one way to get quick universal deployment: add a test to
test262 that fails when a browser's WindowProxy object violates this
normative part of the ES5 spec.
I feel such a test would rather belong to the HTML DOM. But either way,
I agree.
I'll reach out to public-script-coord to re-explain the issue and the
suggested changes. I'll write a test case, submit it to the webapps
directory [2] (I'll ask first to be sure it's the right one) and file
bugs in different browsers.
David
[1] Last point of
https://mail.mozilla.org/pipermail/es-discuss/2012-December/027092.html
[2] http://dvcs.w3.org/hg/webapps/
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