Enum TDirection

library/cpp/containers/comptrie/node.h:8–14

    class ILeafSkipper;

    enum TDirection {
        D_LEFT,
        D_FINAL,
        D_NEXT,
        D_RIGHT,
        D_MAX
    };

    inline TDirection& operator++(TDirection& direction) {
        direction = static_cast<TDirection>(direction + 1);