public void SimpleInvocation(string sourceText, int locationStart)
{
var tree = CSharpSyntaxTree.ParseText(sourceText);
var mscorlib = MetadataReference.CreateFromFile(typeof(object).Assembly.Location);
var compilation = CSharpCompilation.Create("Compilation", new[] { tree }, new[] { mscorlib });
var classDeclaration = tree.GetRoot().DescendantNodesAndSelf().OfType <ClassDeclarationSyntax>().First();
var semanticModel = compilation.GetSemanticModel(tree);
var namedSymbol = semanticModel.GetDeclaredSymbol(classDeclaration);
var expectedLocation = Location.Create(classDeclaration?.SyntaxTree, TextSpan.FromBounds(locationStart, locationStart + 9));
var diagnostic = _diagnosticFormatter.CreateDiagnostics(_rule, namedSymbol)
.Single();
Assert.AreEqual(expectedLocation, diagnostic.Location);
Assert.AreEqual("ClassName", diagnostic.GetMessage());
}
/// <inheritdoc />
public override void Initialize(AnalysisContext context)
{
context.EnableConcurrentExecution();
context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.None);
context.RegisterSymbolAction(symbolAnalysisContext =>
{
var namedTypeSymbol = symbolAnalysisContext.Symbol as INamedTypeSymbol;
if (namedTypeSymbol == null || namedTypeSymbol.IsAbstract)
{
return;
}
var baseTypeSymbol = namedTypeSymbol.BaseType;
if (baseTypeSymbol == null || !baseTypeSymbol.ToString().Equals("System.Web.UI.Page"))
{
return;
}
var diagnostics = DiagnosticFormatter.CreateDiagnostics(Rule, namedTypeSymbol);
symbolAnalysisContext.ReportDiagnostics(diagnostics);
}, SymbolKind.NamedType);
}
private static void Analyze(SymbolAnalysisContext symbolAnalysisContext)
{
var namedTypeSymbol = (INamedTypeSymbol)symbolAnalysisContext.Symbol;
if (namedTypeSymbol == null ||
namedTypeSymbol.IsAbstract ||
namedTypeSymbol.IsNested())
{
return;
}
// Symbol is defined in multiple locations if it is a partial class -- all locations need to be checked
var symbolFilePaths = namedTypeSymbol.Locations.Select(location => location?.SourceTree?.FilePath).ToArray();
var isInWebPartsFolder = symbolFilePaths.Any(SolutionFolders.FileIsInWebPartsFolder);
if (!isInWebPartsFolder)
{
return;
}
var isUiWebPart = symbolFilePaths.Any(SolutionFolders.IsUIWebPart);
var allowedBaseTypeNames = isUiWebPart ? UiWebPartBases : WebPartBases;
var ruleToBeUsed = isUiWebPart ? UiWebPartRule : WebPartRule;
var extendsOnlyObject = namedTypeSymbol.ExtendsOnlyObject();
var inheritsFromOneOfRequiredTypes = InheritsFromOneOfRequiredTypes(allowedBaseTypeNames, namedTypeSymbol);
if (extendsOnlyObject || inheritsFromOneOfRequiredTypes)
{
return;
}
var diagnostics = DiagnosticFormatter.CreateDiagnostics(ruleToBeUsed, namedTypeSymbol);
symbolAnalysisContext.ReportDiagnostics(diagnostics);
}
