gistfile1.n

using System;
using System.Console;
using M;

class Test
{
  public static @()(this _ : this, s : string) : void
  {
  }
}

public module M
{
  internal @$ : Test;
}

module P
{
  Main():void
  {
    M.@$("A"); // OK
    // @$("A"); // error : internal compiler error: got some unknown exception of type System.InvalidCastException: Unable to cast object of type 'Nemerle.Compiler.FieldBuilder' to type 'Nemerle.Compiler.IMethod'.
  }
}