2 files changed, 21 insertions, 0 deletions
diff --git a/src/corelib/serialization/qjsondocument.cpp b/src/corelib/serialization/qjsondocument.cpp
index 5018f7c267..5647b771fb 100644
--- a/src/corelib/serialization/qjsondocument.cpp
+++ b/src/corelib/serialization/qjsondocument.cpp
@@ -669,4 +669,20 @@ QDebug operator<<(QDebug dbg, const QJsonDocument &o)
 }
 #endif
 
+#ifndef QT_NO_DATASTREAM
+QDataStream &operator<<(QDataStream &stream, const QJsonDocument &doc)
+{
+    stream << doc.toJson(QJsonDocument::Compact);
+    return stream;
+}
+
+QDataStream &operator>>(QDataStream &stream, QJsonDocument &doc)
+{
+    QByteArray buffer;
+    stream >> buffer;
+    doc = QJsonDocument::fromJson(buffer);
+    return stream;
+}
+#endif
+
 QT_END_NAMESPACE
diff --git a/src/corelib/serialization/qjsondocument.h b/src/corelib/serialization/qjsondocument.h
index b784890c54..a749439b7d 100644
--- a/src/corelib/serialization/qjsondocument.h
+++ b/src/corelib/serialization/qjsondocument.h
@@ -172,6 +172,11 @@ Q_DECLARE_SHARED_NOT_MOVABLE_UNTIL_QT6(QJsonDocument)
 Q_CORE_EXPORT QDebug operator<<(QDebug, const QJsonDocument &);
 #endif
 
+#ifndef QT_NO_DATASTREAM
+Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QJsonDocument &);
+Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QJsonDocument &);
+#endif
+
 QT_END_NAMESPACE
 
 #endif // QJSONDOCUMENT_H