public override string Print(int depth)
{
return("loop " + LoopVariable + ":" + InitialValue.Print(depth) + " " + StepDirection + " " +
EndingValue.Print(depth)
+ (Step == null ? string.Empty : " with " + Step.Print(depth)) + NewLine(depth)
+ "{" + Statements.Print(depth + 1) + "}");
}