Merge pull request #19 from dotnet-campus/t/walterlv/generate

如果不需要生成源代码，则不会生成 Main，否则一定编译不通过
dotnet-campus · Aug 16, 2024 · 6d0bf04 · 6d0bf04
2 parents 2817ab6 + bc4e851
commit 6d0bf04
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Showing 2 changed files with 24 additions and 4 deletions.
diff --git a/src/dotnetCampus.Logger.Analyzer/Generators/LoggerGenerator.cs b/src/dotnetCampus.Logger.Analyzer/Generators/LoggerGenerator.cs
@@ -30,12 +30,13 @@ private void Execute(SourceProductionContext context, AnalyzerConfigOptionsProvi
                 is var result
                 && !result)
         {
-            // 此项目是通过依赖间接引用的，没有 build 因此无法在源生成器中使用编译属性，所以只能选择引用。
+            // 此项目未设置必要的属性（通常这是不应该出现的，因为 buildTransitive 传递的编译目标会自动生成这些属性）。
             return;
         }
 
         if (!isGenerateSource)
         {
+            // 属性设置为不生成源代码。
             return;
         }
 

diff --git a/src/dotnetCampus.Logger.Analyzer/Generators/ProgramMainLogGenerator.cs b/src/dotnetCampus.Logger.Analyzer/Generators/ProgramMainLogGenerator.cs
@@ -1,8 +1,10 @@
 using System.Text;
 using dotnetCampus.Logger.Assets.Templates;
+using dotnetCampus.Logger.Utils.CodeAnalysis;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Microsoft.CodeAnalysis.Diagnostics;
 using Microsoft.CodeAnalysis.Text;
 using static dotnetCampus.Logger.Utils.CodeAnalysis.ProgramMainExtensions;
 
@@ -16,7 +18,7 @@ public class ProgramMainLogGenerator : IIncrementalGenerator
 {
     public void Initialize(IncrementalGeneratorInitializationContext context)
     {
-        var provider = context.SyntaxProvider.CreateSyntaxProvider((node, ct) =>
+        var syntaxProvider = context.SyntaxProvider.CreateSyntaxProvider((node, ct) =>
         {
             if (node is not MethodDeclarationSyntax mds)
             {
@@ -51,11 +53,28 @@ public void Initialize(IncrementalGeneratorInitializationContext context)
             return programTypeSymbol;
         });
 
-        context.RegisterSourceOutput(provider, Execute);
+        context.RegisterSourceOutput(syntaxProvider.Combine(context.AnalyzerConfigOptionsProvider), Execute);
     }
 
-    private void Execute(SourceProductionContext context, INamedTypeSymbol programTypeSymbol)
+    private void Execute(SourceProductionContext context, (INamedTypeSymbol programTypeSymbol, AnalyzerConfigOptionsProvider analyzerConfigOptions) tuple)
     {
+        var (programTypeSymbol, provider) = tuple;
+
+        if (provider.GlobalOptions
+                    .TryGetValue<bool>("_DLGenerateSource", out var isGenerateSource)
+                is var result
+            && !result)
+        {
+            // 此项目未设置必要的属性（通常这是不应该出现的，因为 buildTransitive 传递的编译目标会自动生成这些属性）。
+            return;
+        }
+
+        if (!isGenerateSource)
+        {
+            // 属性设置为不生成源代码。
+            return;
+        }
+
         // 生成 Program.Logger.g.cs
         var partialLoggerFile = GeneratorInfo.GetEmbeddedTemplateFile<Program>();
         var generatedLoggerText = ConvertPartialProgramLogger(partialLoggerFile.Content, programTypeSymbol);