public override Parse.Expression BuildDefault()
{
if (System.Runtime.InteropServices.Marshal.SizeOf(Native) == 4)
return new Parse.LiteralExpression { Value = 0 };
else if (System.Runtime.InteropServices.Marshal.SizeOf(Native) == 8)
return new Parse.LiteralExpression { Value = 0L };
else
throw new NotSupportedException();
}