reproducing

main.cpp

@@ -0,0 +1,36 @@
+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+#include <QtProtobuf/QProtobufSerializer>
+#include <hello/hello.qpb.h>
+
+int main(int argc, char *argv[])
+{
+    QGuiApplication app(argc, argv);
+
+    QProtobufSerializer serializer;
+
+    auto message = hello::HelloMessage();
+    message.setMessage(QString("test message"));
+    //hello::HelloMessage_QtProtobufNested::First first;
+    // message.setFirst(first); // NOT SETTING
+    hello::HelloMessage_QtProtobufNested::Second second;
+    message.setSecond(second);
+
+    QByteArray bytes = serializer.serialize(&message);
+
+    auto deserialized_message = hello::HelloMessage();
+    if (!serializer.deserialize(&deserialized_message, bytes)) {
+        qCritical() << "unable to deserialize";
+        return 1;
+    }
+
+    if (deserialized_message.hasSecond()) {
+        qDebug() << "has second";
+    }
+    if (deserialized_message.hasFirst()) {
+        qDebug() << "has first";
+    }
+    qDebug() << "deserialized message " << deserialized_message.message() << " " << deserialized_message.second().test();
+
+    return 0;
+}