url: optimize path resolution with single-pass algorithm#61395
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anonrig wants to merge 1 commit intonodejs:mainfrom
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url: optimize path resolution with single-pass algorithm#61395anonrig wants to merge 1 commit intonodejs:mainfrom
anonrig wants to merge 1 commit intonodejs:mainfrom
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #61395 +/- ##
==========================================
+ Coverage 88.51% 88.53% +0.01%
==========================================
Files 704 704
Lines 208814 208920 +106
Branches 40316 40357 +41
==========================================
+ Hits 184840 184957 +117
+ Misses 15964 15953 -11
Partials 8010 8010
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avivkeller
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Jan 16, 2026
| * @returns {{ segments: string[], up: number, trailingSlash: boolean }} | ||
| */ | ||
| function normalizePathSegments(path, allowAboveRoot) { | ||
| if (!path) return { segments: [], up: 0, trailingSlash: false }; |
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| if (!path) return { segments: [], up: 0, trailingSlash: false }; | |
| if (!path) { | |
| return { | |
| __proto__: null, | |
| segments: [], | |
| up: 0, | |
| trailingSlash: false, | |
| } | |
| } |
| } else if (segment === '..') { | ||
| // Parent directory | ||
| if (segments.length > 0 && segments[segments.length - 1] !== '..') { | ||
| segments.pop(); |
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| segments.pop(); | |
| ArrayPrototypePop(segments); |
| // If path ends with /, ., or .., we need a trailing slash | ||
| trailingSlash = lastSeg === '' || lastSeg === '.' || lastSeg === '..'; | ||
|
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| return { segments, up, trailingSlash }; |
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| return { segments, up, trailingSlash }; | |
| return { | |
| __proto__: null, | |
| segments, | |
| up, | |
| trailingSlash, | |
| } |
| // Handle mustEndAbs - ensure path starts with / | ||
| let isAbsolute = srcPath.length > 0 && srcPath[0] === ''; | ||
| if (!isAbsolute && srcPath.length > 0 && srcPath[0] && | ||
| srcPath[0].charAt(0) === '/') { |
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| srcPath[0].charAt(0) === '/') { | |
| srcPath[0][0] === '/') { |
| if (result.host) { | ||
| // Remove the host from srcPath (first element) | ||
| srcPath = srcPath.length > 1 ? | ||
| ArrayPrototypeJoin(srcPath, '/').slice(result.host.length + 1).split('/') : |
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Saw at most 10-15% improvement. Not worth such large sum of code change. |
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Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Includes multiple optimizations to avoid opening multiple pull-requests.
My local benchmarks show 2x-3x improvement. Let's see what the CI says.
Benchmark CI: https://ci.nodejs.org/view/Node.js%20benchmark/job/benchmark-node-micro-benchmarks/1782/console