14 files changed, 167 insertions, 455 deletions
diff --git a/src/qml/doc/snippets/code/backend/backend.cpp b/src/qml/doc/snippets/code/backend/backend.cpp
deleted file mode 100644
index 58f5a15e2a..0000000000
--- a/src/qml/doc/snippets/code/backend/backend.cpp
+++ /dev/null
@@ -1,71 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2017 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtQml module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-//! [backend_cpp]
-#include "backend.h"
-
-BackEnd::BackEnd(QObject *parent) :
-    QObject(parent)
-{
-}
-
-QString BackEnd::userName()
-{
-    return m_userName;
-}
-
-void BackEnd::setUserName(const QString &userName)
-{
-    if (userName == m_userName)
-        return;
-
-    m_userName = userName;
-    emit userNameChanged();
-}
-//! [backend_cpp]
diff --git a/src/qml/doc/snippets/code/backend/backend.h b/src/qml/doc/snippets/code/backend/backend.h
deleted file mode 100644
index fa7ce9eb86..0000000000
--- a/src/qml/doc/snippets/code/backend/backend.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2017 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtQml module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-//! [backend_header]
-#ifndef BACKEND_H
-#define BACKEND_H
-
-#include <QObject>
-#include <QString>
-
-class BackEnd : public QObject
-{
-    Q_OBJECT
-    Q_PROPERTY(QString userName READ userName WRITE setUserName NOTIFY userNameChanged)
-
-public:
-    explicit BackEnd(QObject *parent = nullptr);
-
-    QString userName();
-    void setUserName(const QString &userName);
-
-signals:
-    void userNameChanged();
-
-private:
-    QString m_userName;
-};
-
-#endif // BACKEND_H
-//! [backend_header]
diff --git a/src/qml/doc/snippets/code/backend/main.cpp b/src/qml/doc/snippets/code/backend/main.cpp
index 91a012dfda..7559e472c7 100644
--- a/src/qml/doc/snippets/code/backend/main.cpp
+++ b/src/qml/doc/snippets/code/backend/main.cpp
@@ -1,64 +1,13 @@
-/****************************************************************************
-**
-** Copyright (C) 2017 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtQml module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 //! [main_cpp]
 #include <QGuiApplication>
 #include <QQmlApplicationEngine>
 
-#include "backend.h"
-
 int main(int argc, char *argv[])
 {
     QGuiApplication app(argc, argv);
 
-    qmlRegisterType<BackEnd>("io.qt.examples.backend", 1, 0, "BackEnd");
-
     QQmlApplicationEngine engine;
     engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
 
diff --git a/src/qml/doc/snippets/code/backend/main.qml b/src/qml/doc/snippets/code/backend/main.qml
index fadc9cd768..7bad89374f 100644
--- a/src/qml/doc/snippets/code/backend/main.qml
+++ b/src/qml/doc/snippets/code/backend/main.qml
@@ -1,55 +1,8 @@
-/****************************************************************************
-**
-** Copyright (C) 2017 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtQml module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 //! [main_qml]
-import QtQuick 2.6
-import QtQuick.Controls 2.0
+import QtQuick
+import QtQuick.Controls
 //![import]
 import io.qt.examples.backend 1.0
 //![import]
@@ -72,7 +25,7 @@ ApplicationWindow {
         placeholderText: qsTr("User name")
         anchors.centerIn: parent
 
-        onTextChanged: backend.userName = text
+        onEditingFinished: backend.userName = text
     }
 //![username_input]
 }
diff --git a/src/qml/doc/snippets/code/doc_src_qtqml.cmake b/src/qml/doc/snippets/code/doc_src_qtqml.cmake
new file mode 100644
index 0000000000..1d9dccc49a
--- /dev/null
+++ b/src/qml/doc/snippets/code/doc_src_qtqml.cmake
@@ -0,0 +1,13 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#! [0]
+find_package(Qt6 REQUIRED COMPONENTS Qml)
+target_link_libraries(mytarget PRIVATE Qt6::Qml)
+#! [0]
+
+#! [1]
+find_package(Qt6 REQUIRED COMPONENTS QmlIntegration)
+target_link_libraries(mytarget PRIVATE Qt6::QmlIntegration)
+#! [1]
+
diff --git a/src/qml/doc/snippets/code/doc_src_qtqml.cpp b/src/qml/doc/snippets/code/doc_src_qtqml.cpp
deleted file mode 100644
index 745e2f8f94..0000000000
--- a/src/qml/doc/snippets/code/doc_src_qtqml.cpp
+++ /dev/null
@@ -1,53 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2018 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-//! [0]
-#include <QtQml>
-//! [0]
diff --git a/src/qml/doc/snippets/code/doc_src_qtqml.pro b/src/qml/doc/snippets/code/doc_src_qtqml.pro
deleted file mode 100644
index 48dc3ebf6c..0000000000
--- a/src/qml/doc/snippets/code/doc_src_qtqml.pro
+++ /dev/null
@@ -1,3 +0,0 @@
-#! [0]
-QT += qml
-#! [0]
diff --git a/src/qml/doc/snippets/code/src_network_access_qnetworkaccessmanager.cpp b/src/qml/doc/snippets/code/src_network_access_qnetworkaccessmanager.cpp
new file mode 100644
index 0000000000..b200261035
--- /dev/null
+++ b/src/qml/doc/snippets/code/src_network_access_qnetworkaccessmanager.cpp
@@ -0,0 +1,24 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+//! [0]
+class CachingNetworkAccessManagerFactory : public QQmlNetworkAccessManagerFactory
+{
+public:
+
+    inline QNetworkAccessManager *create(QObject *parent) override
+    {
+        QNetworkAccessManager *networkAccessManager = new QNetworkAccessManager(parent);
+        QNetworkDiskCache *diskCache = new QNetworkDiskCache(parent);
+        diskCache->setCacheDirectory("requestCache");
+        networkAccessManager->setCache(diskCache);
+
+        return networkAccessManager;
+    }
+};
+//! [0]
+
+//! [1]
+CachingNetworkAccessManagerFactory networkManagerFactory;
+engine->setNetworkAccessManagerFactory(&networkManagerFactory);
+//! [1]
diff --git a/src/qml/doc/snippets/code/src_qml_qqmlengine.cpp b/src/qml/doc/snippets/code/src_qml_qqmlengine.cpp
new file mode 100644
index 0000000000..ff4cf634a0
--- /dev/null
+++ b/src/qml/doc/snippets/code/src_qml_qqmlengine.cpp
@@ -0,0 +1,51 @@
+// Copyright (C) 2020 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+//! [0]
+class MySingleton : public QObject {
+    Q_OBJECT
+
+    // Register as default constructed singleton.
+    QML_ELEMENT
+    QML_SINGLETON
+
+    static int typeId;
+    // ...
+};
+//! [0]
+
+/*
+//! [1]
+    MySingleton::typeId = qmlTypeId(...);
+//! [1]
+*/
+
+void wrapper2() {
+//! [2]
+    // Retrieve as QObject*
+    QQmlEngine engine;
+    MySingleton* instance = engine.singletonInstance<MySingleton*>(MySingleton::typeId);
+//! [2]
+}
+
+/*
+//! [3]
+    // Register with QJSValue callback
+    int typeId = qmlRegisterSingletonType(...);
+//! [3]
+*/
+
+void wrapper4(int typeId) {
+//! [4]
+    // Retrieve as QJSValue
+    QQmlEngine engine;
+    QJSValue instance = engine.singletonInstance<QJSValue>(typeId);
+//! [4]
+}
+
+void wrapper5() {
+///! [5]
+    QQmlEngine engine;
+    MySingleton *singleton = engine.singletonInstance<MySingleton *>("mymodule", "MySingleton");
+///! [5]
+}
diff --git a/src/qml/doc/snippets/code/src_qml_qqmllist.cpp b/src/qml/doc/snippets/code/src_qml_qqmllist.cpp
new file mode 100644
index 0000000000..69c7fd9f22
--- /dev/null
+++ b/src/qml/doc/snippets/code/src_qml_qqmllist.cpp
@@ -0,0 +1,47 @@
+// Copyright (C) 2020 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+namespace DocWrapper0 {
+//! [0]
+class FruitBasket : QObject {
+    Q_OBJECT
+    QML_LIST_PROPERTY_ASSIGN_BEHAVIOR_APPEND
+    Q_PROPERTY(QQmlListProperty<Fruit> fruit READ fruit)
+
+    public:
+    // ...
+    QQmlListProperty<Fruit> fruit();
+    // ...
+};
+//! [0]
+}
+
+namespace DocWrapper1 {
+//! [1]
+class FruitBasket : QObject {
+    Q_OBJECT
+    QML_LIST_PROPERTY_ASSIGN_BEHAVIOR_REPLACE_IF_NOT_DEFAULT
+    Q_PROPERTY(QQmlListProperty<Fruit> fruit READ fruit)
+
+    public:
+    // ...
+    QQmlListProperty<Fruit> fruit();
+    // ...
+};
+//! [1]
+}
+
+namespace DocWrapper2 {
+//! [2]
+class FruitBasket : QObject {
+    Q_OBJECT
+    QML_LIST_PROPERTY_ASSIGN_BEHAVIOR_REPLACE
+    Q_PROPERTY(QQmlListProperty<Fruit> fruit READ fruit)
+
+    public:
+    // ...
+    QQmlListProperty<Fruit> fruit();
+    // ...
+};
+//! [2]
+}
diff --git a/src/qml/doc/snippets/code/src_qml_qqmlparserstatus.cpp b/src/qml/doc/snippets/code/src_qml_qqmlparserstatus.cpp
new file mode 100644
index 0000000000..980b81a056
--- /dev/null
+++ b/src/qml/doc/snippets/code/src_qml_qqmlparserstatus.cpp
@@ -0,0 +1,19 @@
+// Copyright (C) 2020 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QtCore/qobject.h>
+#include <QtQml/qqmlparserstatus.h>
+
+//! [0]
+class MyObject : public QObject, public QQmlParserStatus
+{
+    Q_OBJECT
+    Q_INTERFACES(QQmlParserStatus)
+
+public:
+    MyObject(QObject *parent = nullptr);
+    // ...
+    void classBegin() override;
+    void componentComplete() override;
+};
+//! [0]
diff --git a/src/qml/doc/snippets/code/src_script_qjsengine.cpp b/src/qml/doc/snippets/code/src_script_qjsengine.cpp
index 6c58fd8a18..c92db44ce7 100644
--- a/src/qml/doc/snippets/code/src_script_qjsengine.cpp
+++ b/src/qml/doc/snippets/code/src_script_qjsengine.cpp
@@ -1,52 +1,5 @@
-/****************************************************************************
-**
-** Copyright (C) 2017 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
 //! [0]
 QJSEngine myEngine;
diff --git a/src/qml/doc/snippets/code/src_script_qjsvalue.cpp b/src/qml/doc/snippets/code/src_script_qjsvalue.cpp
index 1386ffb760..7922b40e40 100644
--- a/src/qml/doc/snippets/code/src_script_qjsvalue.cpp
+++ b/src/qml/doc/snippets/code/src_script_qjsvalue.cpp
@@ -1,52 +1,5 @@
-/****************************************************************************
-**
-** Copyright (C) 2017 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
 //! [0]
 QJSEngine myEngine;
diff --git a/src/qml/doc/snippets/code/src_script_qjsvalueiterator.cpp b/src/qml/doc/snippets/code/src_script_qjsvalueiterator.cpp
index 3cb43bc327..9316317c40 100644
--- a/src/qml/doc/snippets/code/src_script_qjsvalueiterator.cpp
+++ b/src/qml/doc/snippets/code/src_script_qjsvalueiterator.cpp
@@ -1,52 +1,5 @@
-/****************************************************************************
-**
-** Copyright (C) 2017 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
 //! [0]
 QJSValue object;