Quantum/Stylo

Hello, Stylo!

Bugs

• Stylo meta bug 1243581 blockers:

Full Query

ID	Priority	Summary	Whiteboard	Keywords	Assigned to
1413654	P2	stylo: We rely on the initial ResolveStyleFor call when computing the body style for scroll propagation to deal with updating the stylist
1391341	P2	stylo: Font size inherits differently than in Gecko		dev-doc-complete, regression
1450903	P3	Have FontFaceSet::LogMessage correctly report the stylesheet of @font-face rule
1440561	P3	stylo: Figure out a better way to allow sync load of font when possible
1437785	P3	stylo: Author style disabling doesn't stop using @page, @font-face, @counter-style, etc. rules from author sheets
1412441	P3	stylo: Merge structs.rs into bindings.rs
1345688	P3	stylo: align binary representations of computed keyword values and eliminate the match statements
1408323	P3	stylo: consider generating nsStyleConsts.h values from Servo
1405633	P3	stylo: Run other stylo tests in rusttests tasks
1400771	P3	stylo: preshints (mapped attributes) not handled correctly for elements created from non-docshell-associated document
1400510	P3	stylo: Add refcount logging for servo_arc so we can detect reference cycles that cause leaks
1376082	P3	stylo: The hover generation is never updated, and we seem to be fine with it.
1349100	P4	stylo: Try to cache TextIsOnlyWhitespace after parallel traversal
1349295	P4	stylo: Document ServoStyleSet method prerequisites
1349297	P4	stylo: Parse PropertyId from Atom in will-change to remove intermediate steps
1351662	P4	stylo: Figure out an approach to completely avoid leaking from owning Gecko @font-face rule in Servo
1352150	P4	stylo: Add new restyle hint for pres hints
1353592	P4	stylo: use "for reconstruct" restyles to handle clearing out ElementData when manually recreating frames
1353964	P4	stylo: Figure out whether we can replace mSheetURI, mBaseURI, and mPrincipal in StyleSheetInfo with a URLExtraData
1353967	P4	stylo: Replace nsURI pointers in CSSParsingEnvironment with URLExtraData to unify gecko and stylo path
1354566	P4	stylo: parsing a single property is still somewhat slower than Gecko
1354987	P4	stylo: May need to consider integrating incremental destroyer for style data
1355668	P4	stylo: Consider optimizing revalidation selector matching further
1359615	P4	stylo: Support multivalued text-align
1361032	P4	stylo: Remove redundant nsCSSValue getter/setter bindings
1365475	P4	stylo: Complex selectors with multiple class selectors end up doing multiple FFI calls to get the class attr		perf
1365476	P4	stylo: class handling during restyle hint computation may be suboptimal		perf
1369329	P4	stylo: Handle attr() namespaces in CSSOM
1371512	P4	stylo: need_clone shouldn't be replaced even if animatable
1372266	P4	stylo: consider returning 'InvalidValue' error while parsing invalid values
1374021	P4	stylo: consider making :-moz-browser-frame not a revalidation selector
1375524	P4	stylo: Need a better way to check specified transitions
1375971	P4	stylo: Shouldn't compute the actual ComputedValues for ::first-letter during servo traversal
1348869	P4	stylo: ServoRestyleManager::ContentStateChanged probably doesn't need to call ContentStateChangedInternal if there is no snapshot
1377834	P4	ServoElementSnapshotFlags::Id and MaybeClass should really be separate bool variables
1380257	P4	stylo: Test the style sharing cache.
1381629	P4	stylo: Improve the workflow for landing patches that don't touch style system code like bug 1377993
1381693	P4	Make gPropertyEnabled a bit set and remove EXPERIMENTAL table in Servo's check_allowed_in for Stylo
1382550	P4	stylo: elements using NS_STYLE_COLOR_INHERIT_FROM_BODY don't get restyled when the body color changes
1383506	P4	stylo: consider making URLValueData::MightHaveRef use an atomic for its caching
1384681	P4	stylo: Need to figure out what to do with the hacky style re-resolution that nsSplitterFrame does.
1331440	P4	stylo: Be smarter about generating change hints for appearing/disappearing pseudo-elements
1388849	P4	stylo: We don't propagate the root direction to the viewport frame.
1389742	P4	stylo: Remove a few hacky code paths we have from the frame constructor.
1348136	P4	stylo: ServoElementSnapshot::AddAttrs should do the HasAny() check in an inline path
1347852	P4	stylo: use an arena for style struct allocation (and consider poisoning them on deletion)
1347011	P4	stylo: assert that pseudo atoms are static and avoid no-op addref/release FFI overhead when cloning and dropping PseudoElements
1346065	P4	stylo: Expose STYLO_THREADS environment value and add an assertion in nsRefreshDriver::EnsureTimerStarted()
1345694	P4	stylo: Eliminate ClearRestyleStateFromSubtree and have the frame constructor do the work instead
1344139	P4	stylo: Coalesce all sibling reconstructs when processing nsChangeLists
1334756	P4	stylo: make Gecko_GetNextStyleChild return only elements	[easy]
1331843	P4	stylo: Servo CSS stylesheet parsing is 35% slower than Gecko's on myspace Talos testcase
1388178	P5	stylo: Metabug for crashes identified from crash reports
1299250	P5	stylo: Consider lazy processing (or even computation of) changehints / RestyleDamage

54 Total; 54 Open (100%); 0 Resolved (0%); 0 Verified (0%);

• [stylo] bugs:

Full Query

ID	Priority	Summary	Whiteboard	Keywords	Assigned to
1234357	P3	Process 0 as 0deg in CSS angular properties (e.g., gradients, transforms syntax)	[stylo]	compat, dev-doc-needed
1369424	P3	OOM handler probably doesn't do the right thing	[Stylo]
1406658	P3	calc() does not work in counter-* properties	[stylo]
1378845	P4	stylo: Use placement new for Gecko_CreateCSSErrorReporter	[stylo]
1323146	P5	Automate Hixie's CSS Import Test Suite for @import as part of the web-platform-tests	[stylo]
1377414	P5	Gecko treat 'none' as a predefined counter style, while stylo treat it as a separate keyword value	[stylo]	dev-doc-complete
1322798	--	add "trust checking" to |mach vendor rust|	[stylo]

7 Total; 7 Open (100%); 0 Resolved (0%); 0 Verified (0%);

Links

• Stylo meeting notes
• Stylo work breakdown
• Oxidation is a project to integrate Rust code into Gecko and Firefox.