hello, world... Reflection.Emit style!

Before I head home, I thought I'd post up your typical “Hello, World” style app in Reflection.Emit. ~20 lines of C# code, not too bad for code generation of a Console.WriteLine. For those who don't know what Reflection.Emit is, or what it can do, have a look here here and here for starters.

using System;
using System.Reflection;
using System.Reflection.Emit;
using System.Threading;

public class EmitHelloWorld
      static void Main(string[] args)
            // create a dynamic assembly and module
            AssemblyName assemblyName = new AssemblyName();
            assemblyName.Name = "HelloWorld";
            AssemblyBuilder assemblyBuilder = Thread.GetDomain().DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.RunAndSave);
            ModuleBuilder module;
            module = assemblyBuilder.DefineDynamicModule("HelloWorld.exe");
       // create a new type to hold our Main method
            TypeBuilder typeBuilder = module.DefineType("HelloWorldType", TypeAttributes.Public | TypeAttributes.Class);
            // create the Main(string[] args) method
            MethodBuilder methodbuilder = typeBuilder.DefineMethod("Main", MethodAttributes.HideBySig | MethodAttributes.Static | MethodAttributes.Public, typeof(void), new Type[] { typeof(string[]) });
            // generate the IL for the Main method
            ILGenerator ilGenerator = methodbuilder.GetILGenerator();
            ilGenerator.EmitWriteLine("hello, world");

            // bake it
            Type helloWorldType = typeBuilder.CreateType();

            // run it
            helloWorldType.GetMethod("Main").Invoke(null, new string[] {null});

            // set the entry point for the application and save it
            assemblyBuilder.SetEntryPoint(methodbuilder, PEFileKinds.ConsoleApplication);