C#使用SyntaxTree获取.cs文件中的属性名和注释

有时候，我们可能需要获取.cs文件中的属性和对应的注释来生成一些代码，比如SQL查询什么的。

但使用正则匹配有时候会不准确。搜索了下，发现微软提供了代码解析的API。

具体如下两个方法：

/// <summary>
/// 获取所有属性和对应的文档注释
/// </summary>
/// <param name="codeContent"></param>
/// <returns></returns>
private Dictionary<string, string> GetPropertyAndItsComment(string codeContent)
{Dictionary<string, string> result= new Dictionary<string, string>();SyntaxTree tree = CSharpSyntaxTree.ParseText(codeContent);CompilationUnitSyntax root = tree.GetCompilationUnitRoot();var classDec = (NamespaceDeclarationSyntax)root.Members[0];var programDeclaration = (ClassDeclarationSyntax)classDec.Members[0];foreach (MemberDeclarationSyntax mem in programDeclaration.Members){if (mem is PropertyDeclarationSyntax){PropertyDeclarationSyntax pro = (PropertyDeclarationSyntax)mem;result.Add(pro.Identifier.Text, GetDocComment(mem));}}return result;
}/// <summary>
/// 获取注释内容并做处理
/// </summary>
/// <param name="pro"></param>
/// <returns></returns>
private string GetDocComment(MemberDeclarationSyntax pro)
{foreach (SyntaxTrivia trivia in pro.GetLeadingTrivia()){if (trivia.IsKind(SyntaxKind.SingleLineDocumentationCommentTrivia)|| trivia.IsKind(SyntaxKind.MultiLineDocumentationCommentTrivia)){string conmment = trivia.ToString().Replace("///","");conmment = conmment.Replace("<summary>", "");conmment = conmment.Replace("</summary>", "");conmment = conmment.Trim();return conmment;}}return "";
}