Now that rustfmt is getting close to stable, and work on the style system has died down a bit, it seemed like an opportune time to auto-format the style crates.
The first commit disables import reordering, since tidy and rustfmt don't currently agree on the correct ordering. The second commit does a bunch of manual fixups such that the output of rustfmt passes tidy. The third commit runs rustfmt on the three aforementioned crate.
There are a few dozen warnings in the style crate about lines longer than 100 characters. It would be good to fix these, but I don't have time for that now.
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This makes an element available in StyleAdjuster, and uses it to replace some of our CascadeFlags (the ones that don't represent restrictions on what's actually cascaded, actually).
That fixes handwaviness in the handling of those flags from style reparenting,
and code duplication to handle tricky stuff like :visited.
There are a number of other changes that are worth noticing:
* skip_root_and_item_based_display_fixup is renamed to skip_item_display_fixup:
TElement::is_root() already implies being the document element, which by
definition is not native anonymous and not a pseudo-element.
Thus, you never get fixed-up if your NAC or a pseudo, which is what the code
tried to avoid, so the only fixup with a point is the item one, which is
necessary.
* The pseudo-element probing code was refactored to return early a
Option::<CascadeInputs>::None, which is nicer than what it was doing.
* The visited_links_enabled check has moved to selector-matching time. The rest
of the checks aren't based on whether the element is a link, or are properly
guarded by parent_style.visited_style().is_some() or visited_rules.is_some().
Thus you can transitively infer that no element will end up with a :visited
style, not even from style reparenting.
Anyway, the underlying reason why I want the element in StyleAdjuster is because
we're going to implement an adjustment in there depending on the tag of the
element (converting display: contents to display: none depending on the tag), so
computing that information eagerly, including a hash lookup, wouldn't be nice.
See each commit for details.
Source-Repo: https://github.com/servo/servo
Source-Revision: 02331617b9bd7a379b05f7daa7ad09a44c27504c
Some defensive programming:
* Make `SelectorFlagsMap::apply_flags` private so it's easier to ensure it is called from the correct thread.
* Clear the cache and the map at the same time; otherwise `apply_flags` leaves `SelectorFlagsMap` in an inconsistent state.
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Source-Revision: 254bbf50a7676b00bb4c5f515c45f2cd3e8e283a
This code used to insert duplicate entries to avoid expensive shuffling of the LRU cache. With uluru this is no longer necessary, because reordering the cache is cheap.
Now it uses the `LRUCache::find` method from uluru 0.2 to update entries in-place. This should increase cache hits by eliminating unnecessary evictions.
This PR also updates `arrayvec` because `uluru` depends on it, and `immeta` because it depends on `arrayvec`.
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See #18809
Still haven't had time to test it but it should fix the tests failures that appeared in m-c
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Source-Revision: fe4139b779b3af749ec1426ddf4e1393c7b85442
It still needs dependencies update to remove all the other bitflags
versions.
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Source-Revision: fe16c1d5c3c9084da0ccb85af599d6ec0f8ab20b
This simplifies the logic in the layout_thread and makes it clearer
which types of reflows generate display lists and cause display updates.
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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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Bug 1376883 - stylo: Drop thread pool stack size to 100k. r=bholley.
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Automatically verify that derive() lists are alphabetically ordered #18172
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This is a preliminary refactoring in preparation for only rebuilding cascade data for origins that have a change. https://bugzilla.mozilla.org/show_bug.cgi?id=1382925
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https://bugzilla.mozilla.org/show_bug.cgi?id=1385089
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This PR speculatively calls paint worklets during style, which increases the concurrency, since it increases the chance that the cache will have the right result in it when it comes to layout. The speculation is wasted effort if the size of the element has changed, but this is often not the case.
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Fixes Gecko bug 1324619.
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Fixes Gecko bug 1376073. r=emilio
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This PR renders paint worklet canvases at the device pixel resolution, rather than the CSS pixel resolution.
It's a dependent PR, building on #17239, #17326 and #17364.
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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-Revision: 31228c18499d1c7f68b6b64b559354c768e81215
This relands #17701, with a fix for the test failures.
Source-Repo: https://github.com/servo/servo
Source-Revision: f49650ce96578c200c71b0a8fa50094764a3c76d
I've wanted to change the threshold a couple of times, and adding in a
10-minute opt rebuild cycle is always a bit de-motivating.
I'm making this option gecko-only because it's pretty niche, and adding
support in servo would require threading it through all the options
stuff. We can add support for it there if we ever need it.
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