[Webkit-unassigned] [Bug 52963] Enable O(1) access to root from any node in shadow DOM subtree

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=52963





--- Comment #3 from Dimitri Glazkov (Google) <dglazkov at chromium.org>  2011-01-23 16:00:23 PST ---
(In reply to comment #2)
> Hi, It might be a dull question, but what feature requires this?
> I'm afraid that it is no longer "rare" data if every shadow nodes have it...
> If the use-case allows, some temporal static variables or flags might be enough,
> or lazy-allocation might be possible for non-hot codepath.

For the immediate needs, we need something like this to fix bug 52917. For the future needs, you'd want to be able to jump to shadow root or read style-cascading settings for any node in the shadow subtree.

As for using RareNodeData, you're more than welcome to explore different solutions!

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