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fix(css): keep query keyword comments and tested selectors, resolve @custom-media fully - #22357
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…stom media Keep a comment between and/or/not and its condition in media and container queries, leave the selector a @supports selector() tests as written apart from whitespace and escapes, and minify @Custom-Media queries.
… is used Read every @Custom-Media rule before walking the sheet, so a name is written before the rule stating it, the last rule wins and names read through each other resolve. Write a list beside an and as one query per alternative, place a media type first, and read true and false.
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| Name | Type |
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| webpack | Patch |
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Navigate logical layers of code changes, visualize relationships, and explore their blast radius. No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: Repository: webpack/webpack/.coderabbit.yaml Review profile: CHILL Plan: Advanced Run ID: 📒 Files selected for processing (2)
Included review availability: This review used your included allowance. Your plan provides up to 10 included reviews per hour; 5 remain after this review. 📝 WalkthroughWalkthroughThe CSS parser and printer now handle ChangesCSS condition minification
Priority: ⬇️ Low Change: Bug fix Merge Risk: ⚪ Minimal · up to The reviewed CSS changes have no established merge-blocking regression. Custom-media definitions do not carry into later stylesheet parses, so the change is mergeable subject to normal checks. Architecture SummaryArchitecture risk: 🔵 Low · up to The change affects 2 systems. Changed systems: Architecture concerns Review detailsSystems and components
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🚥 Pre-merge checks | ✅ 3 | ❓ 1❌ Failed checks (1 inconclusive)
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Full details: Title checkExplanation The title uses the required Conventional Commit form, uses the allowed type Warning Some tools did not complete. Review the errors below. 🔧 ESLint
lib/css/syntax-parser.jsESLint failed to execute (timeout). test/unitCases/CssSyntax.unittest.jsESLint skipped: the matched ESLint configuration already failed (timeout). Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out. Comment |
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #22357 +/- ##
==========================================
- Coverage 95.76% 94.84% -0.92%
==========================================
Files 770 767 -3
Lines 110081 110117 +36
Branches 34402 34474 +72
==========================================
- Hits 105416 104443 -973
- Misses 4665 5674 +1009
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Read No asset with an untouched test changed size — every change below comes with a test this pull request edited. 1 asset(s) changed size, test edited
2 asset(s) this pull request adds
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Actionable comments posted: 1
- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @lib/css/syntax-parser.js:
- Around line 14465-14466: Update _useMinMaxSpelling to detect disjunctions
using _queryKeyword so an `or` followed by a kept comment is recognized and the
lowered interval remains parenthesized. Add a regression case for the
commented-`or` media query with the Chrome 90 target.
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⛔ Files ignored due to path filters (4)
test/configCases/css/minimize-media-queries/__snapshots__/ConfigCacheTest.snapis excluded by!**/*.snap,!test/**/__snapshots__/**test/configCases/css/minimize-media-queries/__snapshots__/ConfigTest.snapis excluded by!**/*.snap,!test/**/__snapshots__/**test/configCases/css/minimize-supports/__snapshots__/ConfigCacheTest.snapis excluded by!**/*.snap,!test/**/__snapshots__/**test/configCases/css/minimize-supports/__snapshots__/ConfigTest.snapis excluded by!**/*.snap,!test/**/__snapshots__/**
📒 Files selected for processing (9)
.changeset/037-css-supports-conditions.mdlib/css/syntax-parser.jslib/css/syntax-printer.jstest/configCases/css/minimize-media-queries/index.jstest/configCases/css/minimize-media-queries/style.csstest/configCases/css/minimize-media-queries/test.config.jstest/configCases/css/minimize-media-queries/webpack.config.jstest/configCases/css/minimize-supports/style.csstest/unitCases/CssSyntax.unittest.js
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…and a not Read an or whose comment is kept as one, wrap an interval a not precedes, and leave a nested group, whose bounds are no interval's, as written.
Merging this PR will regress 1 benchmark
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| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Memory | benchmark "no-concatenation", scenario '{"name":"mode-production","mode":"production"}' |
8.8 MB | 11.6 MB | -24.69% |
| ⚡ | Memory | unit benchmark "html-parser-document-unit", process (Element+Comment visitors) |
1,093.6 KB | 706.5 KB | +54.79% |
| ⚡ | Memory | benchmark "future-defaults", scenario '{"name":"mode-development-rebuild","mode":"development","watch":true}' |
411.4 KB | 275.1 KB | +49.55% |
| ⚡ | Memory | benchmark "css-modules", scenario '{"name":"mode-development","mode":"development"}' |
12.3 MB | 8.9 MB | +38.1% |
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Comparing fix/css-query-conditions (ed7a439) with main (045d2ab)
Footnotes
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6 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩
Summary
Follow-up to #22347. Media and container queries now keep a comment between
and/or/notand its(, as@supportsalready does, because WebKit may readand/**/(differently fromand (. The selector tested by@supports selector()is kept as written, apart from whitespace, comments and escapes.@custom-mediaqueries are minified and now resolve regardless of rule order: the last rule wins, and names that refer to other names resolve. A list used besideandis written as one query per alternative, a media type is moved to the front,true/falseare handled, and names on a cycle are left as written.What kind of change does this PR introduce?
fix
Did you add tests for your changes?
Yes:
test/unitCases/CssSyntax.unittest.js, the newtest/configCases/css/minimize-media-queries/case and a new case intest/configCases/css/minimize-supports/.Does this PR introduce a breaking change?
No.
If relevant, what needs to be documented once your changes are merged or what have you already documented?
n/a
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Summary by CodeRabbit
@custom-mediareferences across query alternatives, including nested references and definitions that appear later in the stylesheet.@supports selector()conditions, including attribute values and:nth-*()arguments.