Method NextNode

library/cpp/containers/comptrie/minimize.cpp:174–202

NextNode returns child nodes, starting from the last node: Right, then Left, then Forward

            // NextNode returns child nodes, starting from the last node: Right, then Left, then Forward
            size_t NextNode(const TOffsetMap& mergedNodes) {
                while (Selector < 3) {
                    size_t nextOffset = 0;

                    switch (++Selector) {
                        case 1:
                            if (Node.GetRightOffset())
                                nextOffset = Node.GetRightOffset();
                            break;

                        case 2:
                            if (Node.GetLeftOffset())
                                nextOffset = Node.GetLeftOffset();
                            break;

                        case 3:
                            if (Node.GetForwardOffset())
                                nextOffset = Node.GetForwardOffset();
                            break;

                        default:
                            break;
                    }

                    if (nextOffset && !mergedNodes.Contains(nextOffset))
                        return nextOffset;
                }
                return 0;
            }
        };

        class TMergingReverseNodeEnumerator: public TReverseNodeEnumerator {