Tag Archives: solid

An investigation of why dynamic_cast violates LSP

Signal sender cast in QT

QT implies that the client code will do qobject_cast that is actually dynamic_cast:

awl::ProcessTask<void> MarketModel::coPlaceOrder(OrderPtr p)
{
    // Update SQLite databse...
    // ...
    // QT signals are used in both C++ and QML.
    // They works with QObject*, and they are not aware of concrete types.
    QObject::connect(p.get(), &OrderModel::statusChanged, this, &MarketModel::onOrderStatusChanged);
}
(more…)