VS 2022自定义代码分析器无生效问题求助

我按照微软官方教程步骤，在Visual Studio 2022中创建了自定义代码分析器解决方案，未修改默认模板生成的代码，但在VSIX实例的简易控制台应用中运行该分析器时无任何效果。根据教程描述，任何包含小写字母的标记应显示波浪下划线，但实际并未出现。

诊断分析器代码 #

namespace TestAnalyzer
{
    [DiagnosticAnalyzer(LanguageNames.CSharp)]
    public class TestAnalyzerAnalyzer : DiagnosticAnalyzer
    {
        public const string DiagnosticId = "TestAnalyzer";

        // You can change these strings in the Resources.resx file. If you do not want your analyzer to be localize-able, you can use regular strings for Title and MessageFormat.
        // See https://github.com/dotnet/roslyn/blob/main/docs/analyzers/Localizing%20Analyzers.md for more on localization
        private static readonly LocalizableString Title = new LocalizableResourceString(nameof(Resources.AnalyzerTitle), Resources.ResourceManager, typeof(Resources));
        private static readonly LocalizableString MessageFormat = new LocalizableResourceString(nameof(Resources.AnalyzerMessageFormat), Resources.ResourceManager, typeof(Resources));
        private static readonly LocalizableString Description = new LocalizableResourceString(nameof(Resources.AnalyzerDescription), Resources.ResourceManager, typeof(Resources));
        private const string Category = "Naming";

        private static readonly DiagnosticDescriptor Rule = new DiagnosticDescriptor(DiagnosticId, Title, MessageFormat, Category, DiagnosticSeverity.Warning, isEnabledByDefault: true, description: Description);

        public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics { get { return ImmutableArray.Create(Rule); } }

        public override void Initialize(AnalysisContext context)
        {
            context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.None);
            context.EnableConcurrentExecution();

            // TODO: Consider registering other actions that act on syntax instead of or in addition to symbols
            // See https://github.com/dotnet/roslyn/blob/main/docs/analyzers/Analyzer%20Actions%20Semantics.md for more information
            context.RegisterSymbolAction(AnalyzeSymbol, SymbolKind.NamedType);
        }

        private static void AnalyzeSymbol(SymbolAnalysisContext context)
        {
            // TODO: Replace the following code with your own analysis, generating Diagnostic objects for any issues you find
            var namedTypeSymbol = (INamedTypeSymbol)context.Symbol;

            // Find just those named type symbols with names containing lowercase letters.
            if (namedTypeSymbol.Name.ToCharArray().Any(char.IsLower))
            {
                // For all such symbols, produce a diagnostic.
                var diagnostic = Diagnostic.Create(Rule, namedTypeSymbol.Locations[0], namedTypeSymbol.Name);

                context.ReportDiagnostic(diagnostic);
            }
        }
    }
}

VSIX控制台应用代码 #

namespace ConsoleCSharp
{
    class Program
    {
        static void Main(string[] args)
        {
            const String wordtocheck1 = "racecar";
            const String wordtocheck2 = "racetrack";

            Console.WriteLine($"{wordtocheck1} {(ispalindrome(wordtocheck1) ? "is" : "is not")} a palindrome");
            Console.WriteLine($"{wordtocheck2} {(ispalindrome(wordtocheck2) ? "is" : "is not")} a palindrome");

            Console.ReadLine();
        }
        protected static Boolean ispalindrome(String word)
        {
            for(Int32 i = 0; i < (word.Length / 2); i++)
            {
                if (word[i] != word[(word.Length - 1) - i])
                    return false;
            }

            return true;
        }
    }
}

排查及解决要点 #

• 确认VSIX部署配置：检查VSIX项目的source.extension.vsixmanifest，在Assets标签页中确保已将分析器项目添加为"Microsoft.VisualStudio.Analyzer"类型的资产，源选择当前解决方案中的分析器项目。
• 检查分析器启用状态：在VSIX实验实例中，进入工具 > 选项 > 文本编辑器 > C# > 代码分析 > 常规，勾选"启用基于Roslyn的代码分析"；再进入代码分析 > 规则集，确认TestAnalyzer规则处于启用状态。
• 验证项目引用：查看控制台应用项目的"分析器"节点，确认自定义分析器已被正确引用；若未显示，可手动右键项目 > 添加 > 分析器 > 浏览选择分析器的DLL文件。
• 手动触发分析：右键控制台项目 > 分析 > 分析并修复代码问题，强制触发分析流程，查看是否生成诊断信息。
• 核对分析器逻辑：当前分析器仅检查SymbolKind.NamedType（类、结构体等命名类型），而示例中的Program类名全大写，不会触发规则。可测试添加一个含小写字母的类（如class myTestClass），验证是否显示警告波浪线。

内容的提问来源于stack exchange，提问作者Jake