[Webkit-unassigned] [Bug 261366] Elements with :has(+ sibling) selectors do not update when their siblings change

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=261366

Cameron McCormack (:heycam) <heycam at apple.com> changed:

           What    |Removed                     |Added
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                 CC|                            |heycam at apple.com

--- Comment #1 from Cameron McCormack (:heycam) <heycam at apple.com> ---
I think we'd either need to extend the "invalidate a lot" patch I have in https://bugs.webkit.org/show_bug.cgi?id=253944 to handle such selectors, or (and this is probably better) we need to store :has(+) and :has(~) rules separately on RuleFeature / StyleScopeRuleSet, then look at the style relation bits that we set on elements to determine whether we need to invalidate those rules on some or all of the siblings of the inserted or removed element.

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