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  1. Qt
  2. QTBUG-52012

QQmlImportsPrivate forces all plugins to be created in Qml thread

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      When statically linking Qt, class QQmlImportsPrivate instantiates all static plugins.

      This forces all plugins, i.e. also all user plugins, to be instantiated in Qml thread, what may cause problems (and does in our application).

      bool QQmlImportsPrivate::populatePluginPairVector(...)
{
    static QVector<QStaticPlugin> plugins;
    if (plugins.isEmpty()) {
        // To avoid traversing all static plugins for all imports, we cut down
        // the list the first time called to only contain QML plugins:
        foreach (const QStaticPlugin &plugin, QPluginLoader::staticPlugins()) {
            if (qobject_cast<QQmlExtensionPlugin *>(plugin.instance()))
               plugins.append(plugin);
        }
    }
...

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            shausman Simon Hausmann
            sebastianloesch Sebastian Lösch
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