private static void AnalyzeCall(SyntaxNodeAnalysisContext context, ISymbol migratableAttributeType, ISymbol dataContractAttributeType, ISymbol dataMemberAttributeType)
{
var typeDecl = (TypeDeclarationSyntax)context.Node;
var semanticModel = context.SemanticModel;
var ct = context.CancellationToken;
var isMigratable = MigrationHashHelper.HasAttribute(typeDecl, migratableAttributeType, semanticModel, ct);
if (!isMigratable)
{
return;
}
if (dataContractAttributeType != null && dataMemberAttributeType != null)
{
var isDataContract = MigrationHashHelper.HasAttribute(typeDecl, dataContractAttributeType, semanticModel, ct);
var hasDataMember = MigrationHashHelper.GetDataMembers(typeDecl, ct, semanticModel, dataMemberAttributeType).Any();
if (isDataContract && hasDataMember)
{
return;
}
}
var diagnostic = Diagnostic.Create(Rule, typeDecl.GetLocation(), typeDecl.Identifier.ToString());
context.ReportDiagnostic(diagnostic);
}
public void ShouldGetAllDataMembers()
{
var tree = SyntaxFactory.ParseSyntaxTree(@"using System.Runtime.Serialization;
public class A
{
public string PropertyA { get; }
[DataMember] public string PropertyB { get; }
public int FieldA { get; }
[DataMember] public int FieldB { get; }
}");
var compilation = CSharpCompilation.Create(
"MyCompilation",
syntaxTrees: new[] { tree },
references: new[]
{
MetadataReference.CreateFromFile(typeof(object).Assembly.Location),
MetadataReference.CreateFromFile(typeof(DataMemberAttribute).Assembly.Location)
});
var model = compilation.GetSemanticModel(tree);
var typeDecl = tree
.GetRoot()
.ChildNodes()
.OfType <TypeDeclarationSyntax>()
.Single();
var dataMemberAttributeType = compilation.GetTypeByMetadataName(Constants.DataMemberAttributeMetadataName);
var dataMembers = MigrationHashHelper.GetDataMembers(typeDecl, CancellationToken.None, model, dataMemberAttributeType);
dataMembers.Count.Should().Be(2);
dataMembers[0].Identifier.Should().Be("FieldB");
dataMembers[0].Type.Should().Be("int");
dataMembers[1].Identifier.Should().Be("PropertyB");
dataMembers[1].Type.Should().Be("string");
}