[Webkit-unassigned] [Bug 12973] REGRESSION: Reproducible assert while loading this test file if css is already in the cache

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=12973





------- Comment #8 from mitz at webkit.org  2007-03-10 12:37 PDT -------
(In reply to comment #7)
> Why is the m_sheet null check kept in one place, but not the other two?

Because it's needed in that one place (in case the type attribute is wrong or
the media doesn't match) and not in the other two.

> In
> both methods were the null check is not kept, m_sheet is used previously in the
> method, but how do we know its value won't change between uses?

In HTMLLinkElement it's obvious (setMedia() cannot get m_sheet changed). In
ProcessingInstruction it's quite easy to verify that it cannot become 0.


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