Rule cache
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This adds a TLS-based cache reset styles structs keyed off rule nodes. Reviewed in https://bugzilla.mozilla.org/show_bug.cgi?id=1367635 by me and Emilio.
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Source-Repo: https://github.com/servo/servo
Source-Revision: 874cb0d9df44e62a78d427f22f234a13227d07f8
This allows us to simplify a lot of code.
On top of #18267.
Source-Repo: https://github.com/servo/servo
Source-Revision: 473934c989c94773c38f585b1c4500cd8c811738
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Source-Revision: 1aacbce053aa1823a1d974aa4cf9eeba7d377c88
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This is needed for ::first-line support. See https://drafts.csswg.org/css-pseudo-4/#first-line-inheritance
This PR doesn't quite implement what the CSS spec draft says right now. It implements what Gecko does, which is what an earlier draft said.
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Source-Repo: https://github.com/servo/servo
Source-Revision: 020188fdd77f0f0f2848e21eb9bcc28362d98506
We have optimizations to avoid doing selector-matching when the style attribute
changes, so, given you can toggle the display property and the pseudo-elements
will suddenly become effective, we can't really skip them.
Furthermore, we assume that if an element has an ElementStyles, they're
up-to-date and we can use them for getComputedStyle, so it's pretty easy to
prove that we do the wrong thing when calling getComputedStyle with a
pseudo-element on a display: none root.
Bug: 1384065
Reviewed-by: heycam
MozReview-Commit-ID: BIOqevGZyrm
Source-Repo: https://github.com/servo/servo
Source-Revision: f61528d2977b11673af30e075b4556a2a30f5aaf
The `stylearc` alias is left there temporarilly and will be removed completely in a later commit/PR where also `components/style/gecko/generated/structs_{debug|release}.rs` are re-generated (they still use the old alias).
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Source-Repo: https://github.com/servo/servo
Source-Revision: 31228c18499d1c7f68b6b64b559354c768e81215
