Clang: Provide example with clazy warnings

Change-Id: I23cb81d0ffe0d23428ce85ba22d85e1d6c8c1216
Reviewed-by: Marco Bubke <marco.bubke@qt.io>

share/qtcreator/cplusplus/examples/clazy_example.cpp

@@ -0,0 +1,138 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+// -Wclazy-qt-macros
+#ifdef Q_OS_XXX
+#endif
+
+#include <QCoreApplication>
+#include <QDateTime>
+#include <QFileInfo>
+#include <QMap>
+#include <QObject>
+#include <QPoint>
+#include <QPointer>
+
+// -Wclazy-ctor-missing-parent-argument
+class TestObject : public QObject
+{
+    Q_OBJECT
+
+public:
+    TestObject();
+    TestObject(const TestObject& other);
+
+    bool event(QEvent *event) override
+    {
+        // -Wclazy-base-class-event
+        return false;
+    }
+
+public slots:
+    void someSlot();
+
+    // -Wclazy-function-args-by-value
+    void someOtherSlot(const QPoint &point)
+    {
+        point.isNull();
+    }
+
+signals:
+    void someSignal();
+private:
+    char m_bigArray[100];
+};
+
+// -Wclazy-copyable-polymorphic
+class TestObjectDerived : public TestObject
+{
+
+};
+
+QList<int> getList()
+{
+    QList<int> list;
+    return list;
+}
+
+TestObject::TestObject()
+{
+    // -Wclazy-old-style-connect
+    QObject::connect(this, SIGNAL(someSlot()), SLOT(someOtherSlot()));
+
+    int a;
+
+    // -Wclazy-connect-non-signal, -Wclazy-lambda-in-connect
+    QObject::connect(this, &TestObject::someSlot, [&a]() {
+        return;
+    });
+
+    // -Wclazy-incorrect-emit
+    someSignal();
+
+    QMap<int, int *> map;
+
+    // -Wclazy-unused-non-trivial-variable, -Wclazy-mutable-container-key
+    QMap<QPointer<QObject>, int> map2;
+
+    // -Wclazy-container-anti-pattern, -Wclazy-range-loop
+    for (auto value : map.values()) {
+    }
+
+    // -Wclazy-qdeleteall
+    qDeleteAll(map.values());
+    for (auto it = getList().begin(); it != getList().end(); ++it) { // -Wclazy-detaching-temporary, -Wclazy-temporary-iterator
+    }
+
+    // -Wclazy-inefficient-qlist-soft
+    QList<TestObject> list;
+
+    // -Wclazy-range-loop
+    for (auto obj : list) {
+    }
+
+    // -Wclazy-qdatetime-utc
+    QDateTime::currentDateTime().toTime_t();
+
+    // -Wclazy-qfileinfo-exists
+    // -Wclazy-qstring-allocations
+    QFileInfo("filename").exists();
+
+    // -Wclazy-qlatin1string-non-ascii
+    QLatin1String latinStr("ййй");
+
+    QString str = latinStr;
+
+    // -Wclazy-qstring-left
+    str = str.left(1);
+
+    bool ok;
+
+    // -Wclazy-qstring-ref
+    str.mid(5).toInt(&ok);
+
+    // -Wclazy-qstring-arg
+    QString("%1 %2").arg("1").arg("2");
+}

share/qtcreator/cplusplus/examples/examples.pro

@@ -4,6 +4,6 @@ CONFIG+= c++1z
 
 TARGET = examples
 
-SOURCES += tidy_example.cpp
+SOURCES += clazy_example.cpp tidy_example.cpp
 
 HEADERS += tidy_example.h