Method indexForUsedDeclaration

kdevplatform/language/duchain/topducontext.cpp:1151–1199

}

int TopDUContext::indexForUsedDeclaration(Declaration* declaration, bool create)
{
    if (create) {
        ENSURE_CAN_WRITE
    } else {
        ENSURE_CAN_READ
    }

    if (!declaration) {
        return std::numeric_limits<int>::max();
    }

    if (declaration->topContext() == this && !declaration->inSymbolTable() &&
        !m_dynamicData->isTemporaryDeclarationIndex(declaration->ownIndex())) {
        uint index = declaration->ownIndex();
        Q_ASSERT(!(index & (1 << 31)));
        return ( int )(index | (1 << 31)); //We don't put context-local declarations into the list, that's a waste. We just use the mark them with the highest bit.
    }

    // if the declaration can not be found from this top-context, we create a direct
    // reference by index, to ensure that the use can be resolved in
    // usedDeclarationForIndex
    bool useDirectId = !recursiveImportIndices().contains(declaration->topContext());
    DeclarationId id(declaration->id(useDirectId));

    int index = -1;

    uint size = d_func()->m_usedDeclarationIdsSize();
    const DeclarationId* ids = d_func()->m_usedDeclarationIds();

    ///@todo Make m_usedDeclarationIds sorted, and find the decl. using binary search
    for (unsigned int a = 0; a < size; ++a)
        if (ids[a] == id) {
            index = a;
            break;
        }

    if (index != -1)
        return index;
    if (!create)
        return std::numeric_limits<int>::max();

    d_func_dynamic()->m_usedDeclarationIdsList().append(id);

    if (declaration->topContext() != this)
        DUChain::uses()->addUse(id, this);

    return d_func()->m_usedDeclarationIdsSize() - 1;
}

QVector<RangeInRevision> allUses(TopDUContext* context, Declaration* declaration, bool noEmptyRanges)
{