Avoid linking back to the original TreeSource in document state updates if the associated lazy is already completed #75355
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…es if the associated lazy is already completed Previously, I was seeing pull diagnostics requests for linked documents as computing the changes between the original and current version of the file. Instead, change the code where we determine the tree source to use the latest tree source if it's been calculated.
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| @@ -69,8 +69,11 @@ public DocumentState UpdateTextAndTreeContents( | |||
| // We only need to look one deep here as we'll pull that tree source forward to our level. If another link is | |||
| // later added to us, it will do the same thing. | |||
| var originalTreeSource = this.TreeSource; | |||
| if (originalTreeSource is LinkedFileReuseTreeAndVersionSource linkedFileTreeAndVersionSource) | |||
| if (originalTreeSource is LinkedFileReuseTreeAndVersionSource linkedFileTreeAndVersionSource | |||
| && !linkedFileTreeAndVersionSource.TryGetValue(out var _)) | |||
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alternatively, if you are able to get the value from the linkedSource, why not pass it along instead? And if you can't, you defer to the original tree source it points to.
Also, i think we should doc .OriginalTreeSource. Mention that it's there to produce a long chain if we haven't computed the intermediary steps. But if we have, we'll use that value instead.
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Moved code around a bit and added some comments.
CyrusNajmabadi
approved these changes
Oct 2, 2024
|
Removed my approval. I would like to see if this can be potentially different. |
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| @@ -24,7 +24,26 @@ private sealed class LinkedFileReuseTreeAndVersionSource( | |||
| ITreeAndVersionSource originalTreeSource, | |||
| AsyncLazy<TreeAndVersion> lazyComputation) : ITreeAndVersionSource | |||
| { | |||
| public readonly ITreeAndVersionSource OriginalTreeSource = originalTreeSource; | |||
| // Used as a fallback value in GetComputedTreeAndVersionSource to avoid long lazy chain evaluations. | |||
| private readonly ITreeAndVersionSource _originalTreeSource = originalTreeSource; | |||
| /// </remarks> | ||
| public ITreeAndVersionSource GetNonChainedTreeAndVersionSource() | ||
| { | ||
| if (TryGetValue(out _)) |
CyrusNajmabadi
approved these changes
Oct 3, 2024
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Previously, I was seeing pull diagnostics requests for linked documents as computing the changes between the original and current version of the file. Instead, change the code where we determine the tree source to use the latest tree source if it's been calculated.