private (ImmutableArray <SyntaxTree> added, ImmutableArray <SyntaxTree> removed) UpdateCompilationInternal(DocumentUri documentUri, int?version)
{
try
{
var context = this.provider.Create(workspace, documentUri);
var output = workspace.UpsertSyntaxTrees(context.Compilation.SyntaxTreeGrouping.SyntaxTrees);
// there shouldn't be concurrent upsert requests (famous last words...), so a simple overwrite should be sufficient
this.activeContexts[documentUri] = context;
// convert all the diagnostics to LSP diagnostics
var diagnostics = GetDiagnosticsFromContext(context).ToDiagnostics(context.LineStarts);
// publish all the diagnostics
this.PublishDocumentDiagnostics(documentUri, version, diagnostics);
return(output);
}
catch (Exception exception)
{
// this is a fatal error likely due to a code defect
// publish a single fatal error diagnostic to tell the user something horrible has occurred
// TODO: Tell user how to create an issue on GitHub.
var fatalError = new Diagnostic
{
Range = new Range
{
Start = new Position(0, 0),
End = new Position(1, 0),
},
Severity = DiagnosticSeverity.Error,
Message = exception.Message,
Code = new DiagnosticCode("Fatal")
};
// the file is no longer in a state that can be parsed
// clear all info to prevent cascading failures elsewhere
var closedTrees = CloseCompilationInternal(documentUri, version, fatalError.AsEnumerable());
return(ImmutableArray <SyntaxTree> .Empty, closedTrees);
}
}
private (ImmutableArray <ISourceFile> added, ImmutableArray <ISourceFile> removed) UpdateCompilationInternal(DocumentUri documentUri, int?version, IDictionary <ISourceFile, ISemanticModel> modelLookup, IEnumerable <ISourceFile> removedFiles, bool reloadBicepConfig = false)
{
var configuration = this.GetConfigurationSafely(documentUri, out var configurationDiagnostic);
try
{
var context = this.activeContexts.AddOrUpdate(
documentUri,
(documentUri) => this.provider.Create(workspace, documentUri, modelLookup.ToImmutableDictionary(), configuration),
(documentUri, prevContext) =>
{
var sourceDependencies = removedFiles
.SelectMany(x => prevContext.Compilation.SourceFileGrouping.GetFilesDependingOn(x))
.ToImmutableHashSet();
// check for semantic models that we can safely reuse from the previous compilation
foreach (var sourceFile in prevContext.Compilation.SourceFileGrouping.SourceFiles)
{
if (!modelLookup.ContainsKey(sourceFile) && !sourceDependencies.Contains(sourceFile))
{
// if we have a file with no dependencies on the modified file(s), we can reuse the previous model
modelLookup[sourceFile] = prevContext.Compilation.GetSemanticModel(sourceFile);
}
}
var configuration = reloadBicepConfig
? this.GetConfigurationSafely(documentUri.ToUri(), out configurationDiagnostic)
: prevContext.Compilation.Configuration;
return(this.provider.Create(workspace, documentUri, modelLookup.ToImmutableDictionary(), configuration));
});
foreach (var sourceFile in context.Compilation.SourceFileGrouping.SourceFiles)
{
// store all the updated models as other compilations may be able to reuse them
modelLookup[sourceFile] = context.Compilation.GetSemanticModel(sourceFile);
}
// this completes immediately
this.scheduler.RequestModuleRestore(this, documentUri, context.Compilation.SourceFileGrouping.ModulesToRestore, configuration);
var output = workspace.UpsertSourceFiles(context.Compilation.SourceFileGrouping.SourceFiles);
// convert all the diagnostics to LSP diagnostics
var diagnostics = GetDiagnosticsFromContext(context).ToDiagnostics(context.LineStarts);
if (configurationDiagnostic is not null)
{
diagnostics = diagnostics.Append(configurationDiagnostic);
}
// publish all the diagnostics
this.PublishDocumentDiagnostics(documentUri, version, diagnostics);
return(output);
}
catch (Exception exception)
{
// this is a fatal error likely due to a code defect
// publish a single fatal error diagnostic to tell the user something horrible has occurred
// TODO: Tell user how to create an issue on GitHub.
var fatalError = new Diagnostic
{
Range = new Range
{
Start = new Position(0, 0),
End = new Position(1, 0),
},
Severity = DiagnosticSeverity.Error,
Message = exception.Message,
Code = new DiagnosticCode("Fatal")
};
this.PublishDocumentDiagnostics(documentUri, version, fatalError.AsEnumerable());
return(ImmutableArray <ISourceFile> .Empty, ImmutableArray <ISourceFile> .Empty);
}
}
