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[DocC Live Preview] Cache on-disk snapshots opened in sourcekitd #2226

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[DocC Live Preview] Cache on-disk snapshots opened in sourcekitd #2226

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@matthewbastien matthewbastien commented Jul 31, 2025 •
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Removed SwiftLanguageService.withSnapshotFromDiskOpenedInSourcekitd() in favor of a new OnDiskDocumentManager actor that will cache all snapshots opened for the duration of a textDocument/doccDocumentation request. This will prevent the syntax tree from being parsed multiple times for the same document in a single request.

Follow up to #2216

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@swift-ci please test

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@swift-ci please test

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@swift-ci please test windows

ahoppen
ahoppen reviewed Aug 4, 2025
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@swift-ci please test

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@swift-ci please test Windows

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ahoppen reviewed Aug 14, 2025
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A couple comments but otherwise looks good to me.

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matthewbastien commented Aug 14, 2025 •
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Rebasing on top of main meant that I needed to rearrange a few things:

  • Moved withOnDiskDocumentManager(_:) and OnDiskDocumentManager to SourceKitLSPServer
  • Added openDocumentOnDisk(snapshot:originalFile:) and closeDocumentOnDisk(snapshot:) to LanguageService so that SwiftLanguageService can manage opening and closing the dummy snapshots in sourcekitd.
  • Renamed symbolGraph(forOnDiskContentsOf:at:) to symbolGraphForDocumentOnDisk(at:manager:) which accepts an OnDiskDocumentManager that it will use to retrieve snapshots.

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@swift-ci please test

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@swift-ci please test Windows

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