ReportDiagnostic , GEN001

vipwan · Nov 1, 2023 · 81dce8c · 81dce8c
1 parent 09f68c2
commit 81dce8c
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Showing 2 changed files with 31 additions and 13 deletions.
diff --git a/Biwen.AutoClassGen.Gen/Biwen.AutoClassGen.csproj b/Biwen.AutoClassGen.Gen/Biwen.AutoClassGen.csproj
@@ -28,6 +28,7 @@
 
 	<!--开发调试阶段-->
 	<ItemGroup>
+		<!-- Package the generator in the analyzer directory of the nuget package -->
 		<None Include="$(OutputPath)\$(AssemblyName).dll" Pack="true" PackagePath="analyzers/dotnet/cs" Visible="false" />
 		<None Include="..\README.md">
 		  <Pack>True</Pack>

diff --git a/Biwen.AutoClassGen.Gen/SourceGenerator.cs b/Biwen.AutoClassGen.Gen/SourceGenerator.cs
@@ -20,29 +20,41 @@ public class SourceGenerator : IIncrementalGenerator
         const string AttributeValueMetadataName = "AutoGen";
 
 
-
         public void Initialize(IncrementalGeneratorInitializationContext context)
         {
+
             var nodes = context.SyntaxProvider.ForAttributeWithMetadataName(
               AttributeMetadataName,
               (context, attributeSyntax) => true,
               (syntaxContext, _) => syntaxContext.TargetNode).Collect();
 
-
             IncrementalValueProvider<(Compilation, ImmutableArray<SyntaxNode>)> compilationAndTypes =
                 context.CompilationProvider.Combine(nodes);
 
             context.RegisterSourceOutput(compilationAndTypes, static (spc, source) => HandleAnnotatedNodes(source.Item1, source.Item2, spc));
 
         }
 
+        /// <summary>
+        /// 无法生成类的错误
+        /// </summary>
+#pragma warning disable RS2008 // 启用分析器发布跟踪
+        private static readonly DiagnosticDescriptor InvalidDeclareError = new(id: "GEN001",
+#pragma warning restore RS2008 // 启用分析器发布跟踪
+                                                                              title: "来自Biwen.AutoClassGen的报错信息",
+#pragma warning disable RS1032 // 正确定义诊断消息
+                                                                              messageFormat: "没有实现基础接口因此不能生成类,请删除标注的特性[AutoGen] or 继承相应的接口.",
+#pragma warning restore RS1032 // 正确定义诊断消息
+                                                                              category: typeof(SourceGenerator).Assembly.GetName().Name,
+                                                                              DiagnosticSeverity.Error,
+                                                                              isEnabledByDefault: true);
+
         private static void HandleAnnotatedNodes(Compilation compilation, ImmutableArray<SyntaxNode> nodes, SourceProductionContext context)
         {
             var sb = new StringBuilder();
             sb.AppendLine("// <auto-generated />");
-            sb.AppendLine("// Path: Biwen.AutoClassGen.Gen/SourceGenerator.cs");
-            sb.AppendLine("// author :[email protected] 万雅虎");
-            sb.AppendLine("// 如果你在使用中遇到问题,请第一时间issue,谢谢!");
+            sb.AppendLine("// author:[email protected] 万雅虎");
+            sb.AppendLine("// issue:https://github.com/vipwan/Biwen.AutoClassGen/issues 如果你在使用中遇到问题,请第一时间issue,谢谢!");
             sb.AppendLine("// This file is generated by Biwen.AutoClassGen.SourceGenerator");
             sb.AppendLine();
             sb.AppendLine("using System;");
@@ -51,27 +63,32 @@ private static void HandleAnnotatedNodes(Compilation compilation, ImmutableArray
             sb.AppendLine("using System.ComponentModel.DataAnnotations;");
             sb.AppendLine("using System.Text;");
             sb.AppendLine("using System.Threading.Tasks;");
-            sb.AppendLine("#pragma warning disable");
 
+            sb.AppendLine();
             sb.AppendLine("$namespace");
-
             sb.AppendLine();
+
+            sb.AppendLine("#pragma warning disable");
             sb.AppendLine("namespace $ni");
             sb.AppendLine("{");
-            sb.AppendLine("\t$classes");
+            sb.AppendLine("$classes");
             sb.AppendLine("}");
             sb.AppendLine("#pragma warning restore");
 
             string classTemp = $"public partial class $className : $interfaceName {{ $body }}";
 
+
             foreach (InterfaceDeclarationSyntax node in nodes.AsEnumerable().Cast<InterfaceDeclarationSyntax>())
             {
-                if (node.BaseList == null)
-                {
-                    continue;
-                }
-                if (!node.BaseList.Types.Any())
+
+                if (node.BaseList == null || !node.BaseList.Types.Any())
                 {
+                    var type = compilation.GetSymbolsWithName(node.Identifier.ValueText).AsEnumerable().FirstOrDefault();
+                    var path = type.Locations[0].ToString();
+
+                    // issue error 
+                    context.ReportDiagnostic(Diagnostic.Create(InvalidDeclareError, type.Locations[0]));
+
                     continue;
                 }