Add QDebug support for QRestAccessManager

Task-number: QTBUG-114705
Change-Id: Id33dbfd6906989dfcde654a4f7d6ab4b5e743c33
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

src/network/access/qrestaccessmanager.cpp

@@ -566,6 +566,28 @@ std::chrono::milliseconds QRestAccessManager::transferTimeout() const
     return d->qnam->transferTimeoutAsDuration();
 }
 
+#ifndef QT_NO_DEBUG_STREAM
+/*!
+    \fn QDebug QRestAccessManager::operator<<(QDebug debug,
+                                             const QRestAccessManager &manager)
+
+    Writes \a manager into \a debug stream.
+
+    \sa {Debugging Techniques}
+*/
+QDebug operator<<(QDebug debug, const QRestAccessManager &manager)
+{
+    const QDebugStateSaver saver(debug);
+    debug.resetFormat().nospace();
+
+    debug << "QRestAccessManager(deletesRepliesOnFinished = " << manager.deletesRepliesOnFinished()
+          << ", transferTimeout = " << manager.transferTimeout()
+          << ", active requests = " << manager.d_func()->activeRequests.size()
+          << ")";
+    return debug;
+}
+#endif // QT_NO_DEBUG_STREAM
+
 /*!
     Returns the underlying QNetworkAccessManager instance. The instance
     can be used for accessing less-frequently used features and configurations.

src/network/access/qrestaccessmanager.h

@@ -10,6 +10,7 @@
 
 QT_BEGIN_NAMESPACE
 
+class QDebug;
 class QRestReply;
 
 #define QREST_METHOD_WITH_DATA(METHOD, DATA)                                                     \
@@ -103,6 +104,9 @@ Q_SIGNALS:
     void requestFinished(QRestReply *reply);
 
 private:
+#ifndef QT_NO_DEBUG_STREAM
+    friend Q_NETWORK_EXPORT QDebug operator<<(QDebug debug, const QRestAccessManager &manager);
+#endif
     Q_DECLARE_PRIVATE(QRestAccessManager)
     Q_DISABLE_COPY(QRestAccessManager)
 };