Add validation when registered type/method is outside in generator referenced project.

Author: neuecc

sandbox/FilterShareProject/Class1.cs

@@ -9,4 +9,12 @@ public override Task InvokeAsync(ConsoleAppContext context, CancellationToken ca
         Console.WriteLine("TAKO");
         return Next.InvokeAsync(context, cancellationToken);
     }
+}
+
+public class OtherProjectCommand
+{
+    public void Execute(int x)
+    {
+        Console.WriteLine("Hello?");
+    }
 }

sandbox/GeneratorSandbox/Program.cs

@@ -1,40 +1,22 @@
 using ConsoleAppFramework;
+using FilterShareProject;
 
 
-var t = new Test();
 
 var app = ConsoleApp.Create();
 
-app.Add("foo", t.Handle);
+var v = new OtherProjectCommand();
+// app.Add("", v.Execute);
+app.Add<MyProjectCommand>();
 
 app.Run(args);
 
 
-public partial class Test
+
+public class MyProjectCommand
 {
-    public void Handle(
-        bool a1,
-        bool a2,
-        bool a3,
-        bool a4,
-        bool a5,
-        bool a6,
-        bool a7,
-        bool a8,
-        bool a9,
-        bool a10,
-        bool a11,
-        bool a12,
-        bool a13,
-        bool a14,
-        bool a15,
-        bool a16,
-        bool a17,
-        bool a18,
-        bool a19,
-        string foo = null
-    )
+    public void Execute(int x)
     {
-        Console.Write("ok");
+        Console.WriteLine("Hello?");
     }
 }

src/ConsoleAppFramework/DiagnosticDescriptors.cs

@@ -110,4 +110,8 @@ public static DiagnosticDescriptor Create(int id, string title, string messageFo
     public static DiagnosticDescriptor ClassIsStaticOrAbstract { get; } = Create(
         13,
         "ConsoleAppBuilder.Add<T> class does not allow static or abstract classes.");
+
+    public static DiagnosticDescriptor DefinedInOtherProject { get; } = Create(
+        14,
+        "ConsoleAppFramework cannot register type/method in another project outside the SourceGenerator referenced project.");
 }

src/ConsoleAppFramework/Parser.cs

@@ -79,6 +79,12 @@ internal class Parser(DiagnosticReporter context, InvocationExpressionSyntax nod
             return [];
         }
 
+        if (type.DeclaringSyntaxReferences.Length == 0)
+        {
+            context.ReportDiagnostic(DiagnosticDescriptors.DefinedInOtherProject, node.GetLocation());
+            return [];
+        }
+
         var publicMethods = type.GetMembers()
             .Where(x => x.DeclaredAccessibility == Accessibility.Public)
             .OfType<IMethodSymbol>()
@@ -381,6 +387,12 @@ internal class Parser(DiagnosticReporter context, InvocationExpressionSyntax nod
 
     Command? ParseFromMethodSymbol(IMethodSymbol methodSymbol, bool addressOf, string commandName, FilterInfo[] typeFilters)
     {
+        if (methodSymbol.DeclaringSyntaxReferences.Length == 0)
+        {
+            context.ReportDiagnostic(DiagnosticDescriptors.DefinedInOtherProject, node.GetLocation());
+            return null;
+        }
+
         var docComment = methodSymbol.DeclaringSyntaxReferences[0].GetSyntax().GetDocumentationCommentTriviaSyntax();
         var summary = "";
         Dictionary<string, string>? parameterDescriptions = null;