[Webkit-unassigned] [Bug 103772] Teach OwnPtr and RefPtr to understand Arena'd objects

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sat Dec 1 15:18:04 PST 2012


--- Comment #6 from Maciej Stachowiak <mjs at apple.com>  2012-12-01 15:20:24 PST ---
(In reply to comment #5)
> I've heard that a renderer's node can sometimes be null. Generated / anonymous content like :before, or something. See also bug 103784 for a null node.
> I'm not familiar enough with this code to say for sure, but this might also block unconditionally dereferencing document().

Anonymous objects should still have an m_node, though node() will be null:

    Node* node() const { return isAnonymous() ? 0 : m_node; }

However I'm not expert enough to know if there are edge cases.

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