如何使用reflection.emit发出显式接口实现？

using System.Reflection.Emit;

AssemblyBuilder assemblyBuilder = AppDomain.CurrentDomain.DefineDynamicAssembly(new AssemblyName("DynamicAssembly"), AssemblyBuilderAccess.Run);
ModuleBuilder moduleBuilder = assemblyBuilder.DefineDynamicModule("DynamicModule");

Type interfaceType = typeof(IDisposable);

TypeBuilder typeBuilder = moduleBuilder.DefineType("DynamicType", TypeAttributes.Public);
typeBuilder.AddInterfaceImplementation(interfaceType);

MethodInfo disposeMethod = interfaceType.GetMethod("Dispose");
MethodBuilder methodBuilder = typeBuilder.DefineMethod("Dispose", MethodAttributes.Public | MethodAttributes.Virtual);
ILGenerator ilGenerator = methodBuilder.GetILGenerator();
ilGenerator.Emit(OpCodes.Ret);

Type dynamicType = typeBuilder.CreateType();
IDisposable disposable = (IDisposable)Activator.CreateInstance(dynamicType);