获取 C# 源代码生成中的基类属性 - IIncrementalGenerator

问：

我在源代码生成器中有以下 Execute 方法。我可以获取我的类的所有属性（x.Item1.Members.AsEnumerable（）...）。但是我也无法获取基类的属性。如何列出基类的所有属性？

    private static void Execute(Compilation compilation, ImmutableArray<(ClassDeclarationSyntax, AttributeData)> classes, SourceProductionContext context)
    {
        foreach (var (x, i) in classes.Select((x, i) => (x, i)))
        {
            TypedConstant aggregateParam = x.Item2.ConstructorArguments[0];
            if (aggregateParam.Kind == TypedConstantKind.Primitive &&
                aggregateParam.Value is string fullyQualifiedAggregateName)
            {
                var aggregateName = "Aggregate";

                var props = x.Item1.Members.AsEnumerable().Where(o => o.IsKind(SyntaxKind.PropertyDeclaration));

                var sb = new StringBuilder();

                context.AddSource(
                    $"generated_{aggregateName}_{i}.g.cs",
                    sb.ToString());
            }
        }
    }

更新

        public void Initialize(IncrementalGeneratorInitializationContext context)
        {
            IncrementalValuesProvider<(ClassDeclarationSyntax, AttributeData)> classDeclarations = context.SyntaxProvider
                .ForAttributeWithMetadataName(
                    EventApplyAttribute,
                    predicate: static (node, _) => node is ClassDeclarationSyntax,
                    transform: static (ctx, ct) => GetSemanticTargetForGeneration(ctx, ct))
                .Where(m => m.Item1 is not null && m.Item2 is not null);

            IncrementalValueProvider<(Compilation, ImmutableArray<(ClassDeclarationSyntax, AttributeData)>)> compilationAndClasses
                = context.CompilationProvider.Combine(classDeclarations.Collect());

            context.RegisterSourceOutput(compilationAndClasses,
                static (spc, source) => Execute(source.Item1, source.Item2, spc));
        }

        private static (ClassDeclarationSyntax, AttributeData) GetSemanticTargetForGeneration(GeneratorAttributeSyntaxContext context, CancellationToken ct)
        {
            if (context.TargetNode is not ClassDeclarationSyntax classDeclaration)
            {
                return (null, null);
            }

            AttributeData? attribute = context.Attributes.FirstOrDefault(a => a.AttributeClass?.Name == "EventApplyAttribute");

            return (classDeclaration, attribute);
        }