Example #1
0
    void advance() {
        MOZ_ASSERT(!done());

        if (!descendants.empty()) {
            // Currently iterating over a multiparented subtree.
            descendants.popFront();
            if (!descendants.empty())
                return;

            // Just before leaving the last child, reset the iterator to look
            // at "main" phases (in PHASE_DAG_NONE) instead of multiparented
            // subtree phases.
            ++current;
            activeSlot = PHASE_DAG_NONE;
            baseLevel = 0;
            return;
        }

        if (phaseExtra[current].dagSlot != PHASE_DAG_NONE) {
            // The current phase has a shared subtree. Load them up into
            // 'descendants' and advance to the first child.
            activeSlot = phaseExtra[current].dagSlot;
            descendants = dagDescendants[activeSlot].all();
            MOZ_ASSERT(!descendants.empty());
            baseLevel += phaseExtra[current].depth + 1;
            return;
        }

        ++current;
    }
 void get(Phase* phase, size_t* dagSlot, size_t* level = nullptr) {
     MOZ_ASSERT(!done());
     *dagSlot = activeSlot;
     *phase = descendants.empty() ? Phase(current) : descendants.front();
     if (level)
         *level = phaseExtra[*phase].depth + baseLevel;
 }
    void advance() {
        MOZ_ASSERT(!done());

        if (!descendants.empty()) {
            descendants.popFront();
            if (!descendants.empty())
                return;

            ++current;
            activeSlot = PHASE_DAG_NONE;
            baseLevel = 0;
            return;
        }

        if (phaseExtra[current].dagSlot != PHASE_DAG_NONE) {
            activeSlot = phaseExtra[current].dagSlot;
            descendants = dagDescendants[activeSlot].all();
            MOZ_ASSERT(!descendants.empty());
            baseLevel += phaseExtra[current].depth + 1;
            return;
        }

        ++current;
    }