private AnalyzerActions GetPerCompilationAnalyzerActions(
DiagnosticAnalyzer analyzer,
AnalyzerActions sessionActions,
Compilation compilation,
Action <Diagnostic> addDiagnostic)
{
Contract.ThrowIfFalse(sessionActions.CompilationStartActionsCount > 0);
var compilationActionsMap = compilationActionsTable.GetOrCreateValue(compilation);
AnalyzerActions result;
if (compilationActionsMap.TryGetValue(analyzer, out result))
{
return(result);
}
result = AnalyzerDriverHelper.ExecuteCompilationStartActions(sessionActions, analyzer, compilation,
this.analyzerOptions, addDiagnostic, CatchAnalyzerException, this.cancellationToken);
if (!compilationActionsMap.TryAdd(analyzer, result))
{
return(compilationActionsMap[analyzer]);
}
return(result);
}
private static ImmutableArray <Diagnostic> AnalyzerExceptionToDiagnostics(DiagnosticAnalyzer analyzer, Exception e, CancellationToken cancellationToken)
{
if (!IsCanceled(e, cancellationToken))
{
// Create a info diagnostic saying that the analyzer failed
return(ImmutableArray.Create(AnalyzerDriverHelper.GetAnalyzerDiagnostic(analyzer, e)));
}
return(ImmutableArray <Diagnostic> .Empty);
}
private Tuple <AnalyzerActions, ImmutableArray <Diagnostic> > GetSessionAnalyzerActionsAndDiagnosticsCore(DiagnosticAnalyzer analyzer)
{
using (var pooledObject = SharedPools.Default <List <Diagnostic> >().GetPooledObject())
{
var diagnostics = pooledObject.Object;
var actions = AnalyzerDriverHelper.GetSessionAnalyzerActions(analyzer, diagnostics.Add, CatchAnalyzerException, cancellationToken);
var diagArray = diagnostics.ToImmutableArrayOrEmpty();
return(Tuple.Create(actions, diagArray));
}
}
public void ExecuteCodeBlockActions(
AnalyzerActions actions,
IEnumerable <DeclarationInfo> declarationsInNode,
SemanticModel semanticModel,
AnalyzerOptions analyzerOptions,
Action <Diagnostic> reportDiagnostic,
Func <Exception, DiagnosticAnalyzer, bool> continueOnAnalyzerException,
CancellationToken cancellationToken)
{
AnalyzerDriverHelper.ExecuteCodeBlockActions(actions, declarationsInNode,
semanticModel, analyzerOptions, reportDiagnostic, continueOnAnalyzerException, this.GetKind, cancellationToken);
}
public void ExecuteSyntaxNodeActions(
AnalyzerActions actions,
IEnumerable <SyntaxNode> descendantNodes,
SemanticModel semanticModel,
AnalyzerOptions analyzerOptions,
Action <Diagnostic> reportDiagnostic,
Func <Exception, DiagnosticAnalyzer, bool> continueOnAnalyzerException,
CancellationToken cancellationToken)
{
AnalyzerDriverHelper.ExecuteSyntaxNodeActions(actions, descendantNodes, semanticModel,
analyzerOptions, reportDiagnostic, continueOnAnalyzerException, this.GetKind, cancellationToken);
}
public async Task <IEnumerable <Diagnostic> > GetSyntaxDiagnosticsAsync(DiagnosticAnalyzer analyzer)
{
var compilation = this.document.Project.SupportsCompilation ? await this.document.Project.GetCompilationAsync(cancellationToken).ConfigureAwait(false) : null;
Contract.ThrowIfNull(this.document);
Contract.ThrowIfFalse(analyzer.SupportsSyntaxDiagnosticAnalysis(this));
using (var pooledObject = SharedPools.Default <List <Diagnostic> >().GetPooledObject())
{
var diagnostics = pooledObject.Object;
this.cancellationToken.ThrowIfCancellationRequested();
var documentAnalyzer = analyzer as DocumentDiagnosticAnalyzer;
if (documentAnalyzer != null)
{
try
{
await documentAnalyzer.AnalyzeSyntaxAsync(this.document, diagnostics.Add, this.cancellationToken).ConfigureAwait(false);
return(diagnostics.ToImmutableArrayOrEmpty());
}
catch (Exception e) when(CatchAnalyzerException(e, analyzer))
{
var exceptionDiagnostics = AnalyzerExceptionToDiagnostics(analyzer, e, cancellationToken);
return(GetFilteredDocumentDiagnostics(exceptionDiagnostics, compilation).ToImmutableArray());
}
}
var analyzerActions = await this.GetAnalyzerActionsAsync(analyzer, diagnostics.Add).ConfigureAwait(false);
DiagnosticAnalyzerLogger.UpdateAnalyzerTypeCount(analyzer, analyzerActions, (DiagnosticLogAggregator)logAggregator);
if (analyzerActions != null)
{
if (this.document.SupportsSyntaxTree)
{
AnalyzerDriverHelper.ExecuteSyntaxTreeActions(analyzerActions, this.root.SyntaxTree,
this.analyzerOptions, diagnostics.Add, CatchAnalyzerException, this.cancellationToken);
}
}
if (diagnostics.Count == 0)
{
return(SpecializedCollections.EmptyEnumerable <Diagnostic>());
}
return(GetFilteredDocumentDiagnostics(diagnostics, compilation).ToImmutableArray());
}
}
private async Task GetCompilationDiagnosticsAsync(DiagnosticAnalyzer analyzer, List <Diagnostic> diagnostics, Action <Project, DiagnosticAnalyzer, CancellationToken> forceAnalyzeAllDocuments)
{
Contract.ThrowIfFalse(this.project.SupportsCompilation);
var analyzerActionsAndDiagnostics = GetSessionAnalyzerActionsAndDiagnostics(analyzer);
var analyzerActions = analyzerActionsAndDiagnostics.Item1;
var compilation = await project.GetCompilationAsync(cancellationToken).ConfigureAwait(false);
diagnostics.AddRange(CompilationWithAnalyzers.GetEffectiveDiagnostics(analyzerActionsAndDiagnostics.Item2, compilation));
DiagnosticAnalyzerLogger.UpdateAnalyzerTypeCount(analyzer, analyzerActions, (DiagnosticLogAggregator)logAggregator);
if (analyzerActions == null || (analyzerActions.CompilationStartActionsCount == 0 && analyzerActions.CompilationEndActionsCount == 0))
{
return;
}
using (var pooledObject = SharedPools.Default <List <Diagnostic> >().GetPooledObject())
{
var localDiagnostics = pooledObject.Object;
// Get all the analyzer actions, including the per-compilation actions.
var allAnalyzerActions = await GetAnalyzerActionsAsync(analyzer, localDiagnostics.Add).ConfigureAwait(false);
if (analyzerActions.CompilationEndActionsCount < allAnalyzerActions.CompilationEndActionsCount && forceAnalyzeAllDocuments != null)
{
if (allAnalyzerActions.CodeBlockEndActionsCount > analyzerActions.CodeBlockEndActionsCount ||
allAnalyzerActions.CodeBlockStartActionsCount > analyzerActions.CodeBlockStartActionsCount ||
allAnalyzerActions.SemanticModelActionsCount > analyzerActions.SemanticModelActionsCount ||
allAnalyzerActions.SymbolActionsCount > analyzerActions.SymbolActionsCount ||
allAnalyzerActions.SyntaxNodeActionsCount > analyzerActions.SyntaxNodeActionsCount ||
allAnalyzerActions.SyntaxTreeActionsCount > analyzerActions.SyntaxTreeActionsCount)
{
// Analyzer registered a compilation end action and at least one other analyzer action during it's compilation start action.
// We need to ensure that we have force analyzed all documents in this project for this analyzer before executing the end actions.
forceAnalyzeAllDocuments(project, analyzer, cancellationToken);
}
}
// CompilationEnd actions.
AnalyzerDriverHelper.ExecuteCompilationEndActions(allAnalyzerActions, compilation, analyzerOptions, localDiagnostics.Add, CatchAnalyzerException, cancellationToken);
diagnostics.AddRange(CompilationWithAnalyzers.GetEffectiveDiagnostics(localDiagnostics, compilation));
}
}
public async Task <IEnumerable <Diagnostic> > GetSemanticDiagnosticsAsync(DiagnosticAnalyzer analyzer)
{
var model = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
Contract.ThrowIfNull(this.document);
Contract.ThrowIfFalse(analyzer.SupportsSemanticDiagnosticAnalysis(this));
using (var pooledObject = SharedPools.Default <List <Diagnostic> >().GetPooledObject())
{
var diagnostics = pooledObject.Object;
// Stateless semantic analyzers:
// 1) ISemanticModelAnalyzer/IDocumentBasedDiagnosticAnalyzer
// 2) ISymbolAnalyzer
// 3) ISyntaxNodeAnalyzer
cancellationToken.ThrowIfCancellationRequested();
var documentAnalyzer = analyzer as DocumentDiagnosticAnalyzer;
if (documentAnalyzer != null)
{
try
{
await documentAnalyzer.AnalyzeSemanticsAsync(this.document, diagnostics.Add, this.cancellationToken).ConfigureAwait(false);
}
catch (Exception e) when(CatchAnalyzerException(e, analyzer))
{
var exceptionDiagnostics = AnalyzerExceptionToDiagnostics(analyzer, e, cancellationToken);
return(model == null ? exceptionDiagnostics : GetFilteredDocumentDiagnostics(exceptionDiagnostics, model.Compilation));
}
}
else
{
var analyzerActions = await GetAnalyzerActionsAsync(analyzer, diagnostics.Add).ConfigureAwait(false);
if (analyzerActions != null)
{
// SemanticModel actions.
if (analyzerActions.SemanticModelActionsCount > 0)
{
AnalyzerDriverHelper.ExecuteSemanticModelActions(analyzerActions, model, this.analyzerOptions,
diagnostics.Add, CatchAnalyzerException, cancellationToken);
}
var compilation = model.Compilation;
// Symbol actions.
if (analyzerActions.SymbolActionsCount > 0)
{
var symbols = this.GetSymbolsToAnalyze(model);
AnalyzerDriverHelper.ExecuteSymbolActions(analyzerActions, symbols, compilation,
this.analyzerOptions, diagnostics.Add, CatchAnalyzerException, this.cancellationToken);
}
if (this.SyntaxNodeAnalyzerService != null)
{
// SyntaxNode actions.
if (analyzerActions.SyntaxNodeActionsCount > 0)
{
this.SyntaxNodeAnalyzerService.ExecuteSyntaxNodeActions(analyzerActions, GetSyntaxNodesToAnalyze(), model,
this.analyzerOptions, diagnostics.Add, CatchAnalyzerException, cancellationToken);
}
// CodeBlockStart, CodeBlockEnd, and generated SyntaxNode actions.
if (analyzerActions.CodeBlockStartActionsCount > 0 || analyzerActions.CodeBlockEndActionsCount > 0)
{
this.SyntaxNodeAnalyzerService.ExecuteCodeBlockActions(analyzerActions, this.GetDeclarationInfos(model), model,
this.analyzerOptions, diagnostics.Add, CatchAnalyzerException, cancellationToken);
}
}
}
}
var result = model == null
? diagnostics
: GetFilteredDocumentDiagnostics(diagnostics, model.Compilation);
return(result.ToImmutableArray());
}
}