C#

class TestFirstClassMembers
{
  static readonly Module sModule = Assembly.GetExecutingAssembly().GetModules()[ 0 ];
 
  internal static void Test()
  {
    Trace.WriteLine( "\n\nTestFirstClassMembers" );

    var mi = new Member( ( Func<Class, int> ) ( o => o.Field ) );
    var ml = new Member( ( Func<Class, long> ) ( o => o.FieldLong ) );
    var ms = new Member( ( Func<Class, String> ) ( o => o.FieldString ) );
    var mp = new Member( ( Func<Class, int> ) ( o => o.Property ) );
    var mf = new Member( ( Func<Class, int> ) ( o => o.Function() ) );
    var mm = new Member( ( Action<Class, int, string> ) ( ( o, i, s ) => o.Method( i, s ) ) );
  }
 
  class Class
  {
    public int Field = 0;
    public long FieldLong = 0;
    public String FieldString = String.Empty;
    public int Property { get; set; }
    public int Function() { return 0; }
    public void Method( int i, string s ) { }
  }
 
  class Member
  {
    public Member( Delegate d )
    {
      MethodBody body = d.Method.GetMethodBody();
      byte[] il = body.GetILAsByteArray();
      for ( int i = 0 ; i < il.Length ; i++ )
      {
        switch ( il[ i ] )
        {
          case 0x6F: // callvirt
          case 0x7B: // ldfld
          {
            int token = BitConverter.ToInt32( il, i + 1 );
            var m = sModule.ResolveMember( token );
            Trace.WriteLine( m.ToString() + ": " + m.Name + " " + m.GetType().ToString() );
          }
          break;
        }
      }
    }
  }
}

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