[Webkit-unassigned] [Bug 243172] :has(:lang(~)) doesn't get invalidated

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=243172

--- Comment #1 from Ryosuke Niwa <rniwa at webkit.org> ---
There is a bit of design problem here. :lang(~) relies on Element::computeInheritedLanguage(),
which walks up the tree to find the nearest ancestor with lang content attribute.

:has(~) walks descendants to find an element with a matching :lang(~).

Combining these two naively results in O(n^2) behavior.

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