public ParseTreeEnumerator(
     IInternalForestNode forestRoot)
 {
     _forestRoot = forestRoot;
     _status     = ParseTreeEnumeratorState.New;
     _visitor    = new ForestNodeVisitorImpl();
 }
 public ParseTreeEnumerator(
     IInternalForestNode forestRoot)
 {
     _forestRoot = forestRoot;
     _status = ParseTreeEnumeratorState.New;
     _visitor = new ForestNodeVisitorImpl();
 }
 public void Dispose()
 {
     _visitor    = null;
     _forestRoot = null;
 }
 public void Dispose()
 {
     _visitor = null;
     _forestRoot = null;
 }