Method applyHighlighting

kdevplatform/language/highlighting/codehighlighting.cpp:510–604

}

void CodeHighlighting::applyHighlighting(void* _highlighting)
{
    auto* highlighting =
        static_cast<CodeHighlighting::DocumentHighlighting*>(_highlighting);

    VERIFY_FOREGROUND_LOCKED
    QMutexLocker lock(&m_dataMutex);
    DocumentChangeTracker* tracker = ICore::self()->languageController()->backgroundParser()->trackerForUrl(
        highlighting->m_document);

    if (!tracker) {
        qCDebug(LANGUAGE) << "no document found for the planned highlighting of" << highlighting->m_document.str();
        delete highlighting;
        return;
    }

    if (!tracker->holdingRevision(highlighting->m_waitingRevision)) {
        qCDebug(LANGUAGE) << "not holding revision" << highlighting->m_waitingRevision << "not applying highlighting;"
                          << "probably a new parse job has already updated the context";
        delete highlighting;
        return;
    }

    QVector<MovingRange*> oldHighlightedRanges;

    const auto highlightingIt = m_highlights.find(tracker);
    if (highlightingIt != m_highlights.end()) {
        oldHighlightedRanges = (*highlightingIt)->m_highlightedRanges;
        delete *highlightingIt;
        *highlightingIt = highlighting;
    } else {
        // we newly add this tracker, so add the connection
        connect(tracker->document(), &Document::aboutToInvalidateMovingInterfaceContent, this,
                &CodeHighlighting::aboutToInvalidateMovingInterfaceContent);
        // This can't use new style connect syntax since aboutToRemoveText is only part of KTextEditor::DocumentPrivate
        connect(tracker->document(), SIGNAL(aboutToRemoveText(KTextEditor::Range)),
                this, SLOT(aboutToRemoveText(KTextEditor::Range)));
        connect(tracker, &DocumentChangeTracker::destroyed, this, [this, tracker]() {
            // Called when a document is destroyed
            VERIFY_FOREGROUND_LOCKED
            QMutexLocker lock(&m_dataMutex);
            Q_ASSERT(m_highlights.contains(tracker));
            delete m_highlights[tracker]; // No need to care about the individual ranges, as the document is being
                                          // destroyed
            m_highlights.remove(tracker);
        });
        m_highlights.insert(tracker, highlighting);
    }

    // Now create MovingRanges (match old ones with the incoming ranges)

    KTextEditor::Range tempRange;

    QVector<MovingRange*>::iterator movingIt = oldHighlightedRanges.begin();
    QVector<HighlightedRange>::iterator rangeIt = highlighting->m_waiting.begin();

    while (rangeIt != highlighting->m_waiting.end()) {
        // Translate the range into the current revision