Add verify parameter name mismatch

Author: neuecc

sandbox/GeneratorSandbox/Program.cs

@@ -36,7 +36,7 @@ public class MyCommands
     /// <summary>
     /// 
     /// </summary>
-    /// <param name="msg2">foobarbaz!</param>
+    /// <param name="msg">foobarbaz!</param>
     [Command("Error1")]
     public void Error1(string msg = @"\")
     {

src/ConsoleAppFramework/DiagnosticDescriptors.cs

@@ -114,4 +114,8 @@ public static DiagnosticDescriptor Create(int id, string title, string messageFo
     public static DiagnosticDescriptor DefinedInOtherProject { get; } = Create(
         14,
         "ConsoleAppFramework cannot register type/method in another project outside the SourceGenerator referenced project.");
+
+    public static DiagnosticDescriptor DocCommentParameterNameNotMatched { get; } = Create(
+        15,
+        "Document Comment parameter name '{0}' does not match method parameter name.");
 }

src/ConsoleAppFramework/FunctionSyntax.cs

@@ -481,6 +481,19 @@ internal class Parser(DiagnosticReporter context, SyntaxNode node, SemanticModel
             return null;
         }
 
+        // validate parametersymbols
+        if (parameterDescriptions != null)
+        {
+            foreach (var item in parameterDescriptions)
+            {
+                if (!methodSymbol.Parameters.Any(x => x.Name == item.Key))
+                {
+                    context.ReportDiagnostic(DiagnosticDescriptors.DocCommentParameterNameNotMatched, methodSymbol.Locations[0], item.Key);
+                    return null;
+                }
+            }
+        }
+
         var parsableIndex = 0;
         var parameters = methodSymbol.Parameters
             .Select(x =>

src/ConsoleAppFramework/Parser.cs

@@ -434,5 +434,27 @@ public interface IFoo
 }
 """, "app.Add<IFoo>()");
     }
+
+    [Fact]
+    public void DocCommentName()
+    {
+        verifier.Verify(15, """
+var app = ConsoleApp.Create();
+app.Add<Foo>();
+app.Run(args);
+
+public class Foo
+{
+    /// <param name="nomsg">foobarbaz!</param>
+    [Command("Error1")]
+    public void Bar(string msg)
+    {
+        Console.WriteLine(msg);
+    }
+}
+
+""", "Bar");
+
+    }
 }