Updated the host generation. Namespace collision avoidance for multiple project use. Also no longer emits when zero items are found in a project.

Author: DerekGooding

EnumSourceGenerator/EnumSourceGenerator.csproj

@@ -12,7 +12,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="4.14.0">
-      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.14.0" />

EnumSourceGenerator/HostGenerator.cs

@@ -29,11 +29,17 @@ public void Initialize(IncrementalGeneratorInitializationContext context)
                 })
             .Where(s => s is not null)!;
 
+        
+
         var compilationAndClasses = context.CompilationProvider
             .Combine(classSymbols.Collect());
 
         context.RegisterSourceOutput(compilationAndClasses, (spc, source) =>
         {
+            if( source.Right.IsEmpty) return;
+
+            var projectName = source.Left.AssemblyName ?? "GeneratedProject";
+
             var (compilation, classes) = source;
             var services = classes.OfType<(INamedTypeSymbol symbol, AttributeData attr)>().Distinct().ToList();
 
@@ -44,7 +50,7 @@ public void Initialize(IncrementalGeneratorInitializationContext context)
             sb.AppendLine("using System.Collections.Generic;");
             sb.AppendLine("using System.Reflection;");
             sb.AppendLine();
-            sb.AppendLine("namespace SimpleInjection.Injection;");
+            sb.AppendLine($"namespace {projectName}.Genenerated;");
             sb.AppendLine("public sealed class Host : IDisposable");
             sb.AppendLine("{");
             sb.AppendLine("    private readonly Dictionary<Type, object> _singletonInstances = new();");
@@ -64,10 +70,10 @@ public void Initialize(IncrementalGeneratorInitializationContext context)
 
             // Build dependency graph and sort services
             var serviceInfos = BuildServiceInfos(services, compilation);
-            var sortedServices = TopologicalSort(serviceInfos);
+            
 
             // Generate baked factories in dependency order
-            foreach (var serviceInfo in sortedServices)
+            foreach (var serviceInfo in TopologicalSort(serviceInfos))
             {
                 GenerateFactory(sb, serviceInfo, compilation);
             }
@@ -82,7 +88,7 @@ public void Initialize(IncrementalGeneratorInitializationContext context)
 
             sb.AppendLine("}");
 
-            spc.AddSource("Host.Configure.g.cs", SourceText.From(sb.ToString(), Encoding.UTF8));
+            spc.AddSource($"{projectName}.Host.Configure.g.cs", SourceText.From(sb.ToString(), Encoding.UTF8));
         });
     }
 

SimpleInjection/SimpleInjection.csproj

@@ -8,7 +8,7 @@
 
 	<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 	<PackageId>SimpleInjection</PackageId>
-	<Version>0.9.8.2</Version>
+	<Version>0.9.8.3</Version>
 	<Authors>Derek Gooding</Authors>
 	<Company>Derek Gooding</Company>
 	<Description>