public void runParseTree(ParseTreeNode<ITreeNode> someNode)
        {
            Direction nextCommand = Direction.NEXT;
            List<Command> commands = someNode.evalNodeComponent(ref nextCommand, ref Identifiers);

            foreach (Command curCommand in commands)
            {
                CommandType curComType = curCommand.getCommandType();
                switch (curComType)
                {
                    case CommandType.EVALUABLE:
                        outputStream.WriteLine(curCommand.getIdValue().ToString());
                        break;
                    case CommandType.FLOWCONTROLL:
                        //outputStream.WriteLine("Jumping to label: " + curCommand.getIdName());
                        ParseTreeNode<ITreeNode> jumpNode = jumpToLabel(this.programTree.getRoot().getRight(),                                                                                                 curCommand.getIdName());
                        runParseTree(jumpNode);
                        break;
                    case CommandType.OUTPUT:
                        outputStream.WriteLine(curCommand.getIdValue());
                        break;
                    case CommandType.ERRORALREADYDECLARED:
                        outputStream.WriteLine("Error: Identifier "+curCommand.getIdName()+ " is already declared");
                        break;
                    case CommandType.ERRORNOSUCHID:
                        outputStream.WriteLine("Error: Unknown Identifier " + curCommand.getIdName());
                        break;
                    case CommandType.ERRORNULLARGUMENT:
                        outputStream.WriteLine("Error: Identifier " + curCommand.getIdName() + " has null value");
                        break;
                    case CommandType.ERRORUNCOMPATIBLETYPES:
                        outputStream.WriteLine("Error: Uncompatible type of identifier " + curCommand.getIdName());
                        break;
                    case CommandType.ERRORUNDECLAREDID:
                        outputStream.WriteLine("Error: Identifier " + curCommand.getIdName() + " is not declared");
                        break;
                    default:
                        //???
                        break;
                }
            }
        }