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optimise updating document content in workspace

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This commit is contained in:
Matt Parker
2025-10-15 20:29:27 +10:00
parent ca8acd0adf
commit 8488e47a87
3 changed files with 36 additions and 21 deletions
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47
src/SharpIDE.Application/Features/Analysis/RoslynAnalysis.cs
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@@ -603,10 +603,12 @@ public static class RoslynAnalysis
public static async Task<(ISymbol?, LinePositionSpan?)> LookupSymbol(SharpIdeFile fileModel, LinePosition linePosition)
{
await _solutionLoadedTcs.Task;
var (symbol, linePositionSpan) =
fileModel.IsRazorFile ? await LookupSymbolInRazor(fileModel, linePosition)
: fileModel.IsCsharpFile ? await LookupSymbolInCs(fileModel, linePosition)
: (null, null);
var (symbol, linePositionSpan) = fileModel switch
{
{ IsRazorFile: true } => await LookupSymbolInRazor(fileModel, linePosition),
{ IsCsharpFile: true } => await LookupSymbolInCs(fileModel, linePosition),
_ => (null, null)
};
return (symbol, linePositionSpan);
}
@@ -680,24 +682,37 @@ public static class RoslynAnalysis
return null;
}
public static void UpdateDocument(SharpIdeFile fileModel, string newContent)
public static async Task UpdateDocument(SharpIdeFile fileModel, string newContent)
{
Guard.Against.Null(fileModel, nameof(fileModel));
Guard.Against.NullOrEmpty(newContent, nameof(newContent));
var project = _workspace!.CurrentSolution.Projects.Single(s => s.FilePath == ((IChildSharpIdeNode)fileModel).GetNearestProjectNode()!.FilePath);
if (fileModel.IsRazorFile)
var sourceText = SourceText.From(newContent);
var document = fileModel switch
{
var razorDocument = project.AdditionalDocuments.Single(s => s.FilePath == fileModel.Path);
var newSolution = _workspace.CurrentSolution.WithAdditionalDocumentText(razorDocument.Id, SourceText.From(newContent));
_workspace.TryApplyChanges(newSolution);
}
else
{ IsRazorFile: true } => project.AdditionalDocuments.Single(s => s.FilePath == fileModel.Path),
{ IsCsharpFile: true } => project.Documents.Single(s => s.FilePath == fileModel.Path),
_ => throw new InvalidOperationException("UpdateDocument failed: File is not in workspace")
};
var oldText = await document.GetTextAsync();
// Compute minimal text changes
var changes = sourceText.GetChangeRanges(oldText);
if (changes.Count == 0)
return; // No changes, nothing to apply
var newText = oldText.WithChanges(sourceText.GetTextChanges(oldText));
var newSolution = fileModel switch
{
var document = project.Documents.Single(s => s.FilePath == fileModel.Path);
Guard.Against.Null(document, nameof(document));
var newSolution = _workspace.CurrentSolution.WithDocumentText(document.Id, SourceText.From(newContent));
_workspace.TryApplyChanges(newSolution);
}
{ IsRazorFile: true } => _workspace.CurrentSolution.WithAdditionalDocumentText(document.Id, newText),
{ IsCsharpFile: true } => _workspace.CurrentSolution.WithDocumentText(document.Id, newText),
_ => throw new ArgumentOutOfRangeException()
};
_workspace.TryApplyChanges(newSolution);
}
}