Method uses

kdevplatform/language/duchain/declaration.cpp:675–720

}

QMap<IndexedString, QVector<RangeInRevision>> Declaration::uses() const
{
    ENSURE_CAN_READ
    QMap<IndexedString, QMap<RangeInRevision, bool>> tempUses;

    //First, search for uses within the own context
    {
        QMap<RangeInRevision, bool>& ranges(tempUses[topContext()->url()]);
        const auto useRanges = allUses(topContext(), const_cast<Declaration*>(this));
        for (const RangeInRevision range : useRanges) {
            ranges[range] = true;
        }
    }

    DeclarationId _id = id();
    KDevVarLengthArray<IndexedTopDUContext> useContexts = DUChain::uses()->uses(_id);
    if (!_id.isDirect()) { // also check uses based on direct IDs
        KDevVarLengthArray<IndexedTopDUContext> directUseContexts = DUChain::uses()->uses(id(true));
        useContexts.append(directUseContexts.data(), directUseContexts.size());
    }

    for (const IndexedTopDUContext indexedContext : std::as_const(useContexts)) {
        TopDUContext* context = indexedContext.data();
        if (context) {
            QMap<RangeInRevision, bool>& ranges(tempUses[context->url()]);
            const auto useRanges = allUses(context, const_cast<Declaration*>(this));
            for (const RangeInRevision range : useRanges) {
                ranges[range] = true;
            }
        }
    }

    QMap<IndexedString, QVector<RangeInRevision>> ret;

    for (QMap<IndexedString, QMap<RangeInRevision, bool>>::const_iterator it = tempUses.constBegin();
         it != tempUses.constEnd(); ++it) {
        if (!(*it).isEmpty()) {
            auto& list = ret[it.key()];
            list.reserve((*it).size());
            for (QMap<RangeInRevision, bool>::const_iterator it2 = (*it).constBegin(); it2 != (*it).constEnd(); ++it2)
                list << it2.key();
        }
    }

    return ret;
}

bool hasDeclarationUse(DUContext* context, int declIdx)
{