1 files changed, 123 insertions, 0 deletions
diff --git a/tools/qmllint/componentversion.cpp b/tools/qmllint/componentversion.cpp
new file mode 100644
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+++ b/tools/qmllint/componentversion.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "componentversion.h"
+
+#include <QString>
+#include <QCryptographicHash>
+
+#include <limits>
+
+using namespace LanguageUtils;
+
+const int ComponentVersion::NoVersion = -1;
+const int ComponentVersion::MaxVersion = std::numeric_limits<int>::max();
+
+ComponentVersion::ComponentVersion()
+    : _major(NoVersion), _minor(NoVersion)
+{
+}
+
+ComponentVersion::ComponentVersion(int major, int minor)
+    : _major(major), _minor(minor)
+{
+}
+
+ComponentVersion::ComponentVersion(const QString &versionString)
+    : _major(NoVersion), _minor(NoVersion)
+{
+    int dotIdx = versionString.indexOf(QLatin1Char('.'));
+    if (dotIdx == -1)
+        return;
+    bool ok = false;
+    int maybeMajor = versionString.leftRef(dotIdx).toInt(&ok);
+    if (!ok)
+        return;
+    int maybeMinor = versionString.midRef(dotIdx + 1).toInt(&ok);
+    if (!ok)
+        return;
+    _major = maybeMajor;
+    _minor = maybeMinor;
+}
+
+ComponentVersion::~ComponentVersion()
+{
+}
+
+bool ComponentVersion::isValid() const
+{
+    return _major >= 0 && _minor >= 0;
+}
+
+QString ComponentVersion::toString() const
+{
+    return QString::fromLatin1("%1.%2").arg(QString::number(_major),
+                                            QString::number(_minor));
+}
+
+void ComponentVersion::addToHash(QCryptographicHash &hash) const
+{
+    hash.addData(reinterpret_cast<const char *>(&_major), sizeof(_major));
+    hash.addData(reinterpret_cast<const char *>(&_minor), sizeof(_minor));
+}
+
+namespace LanguageUtils {
+
+bool operator<(const ComponentVersion &lhs, const ComponentVersion &rhs)
+{
+    return lhs.majorVersion() < rhs.majorVersion()
+            || (lhs.majorVersion() == rhs.majorVersion() && lhs.minorVersion() < rhs.minorVersion());
+}
+
+bool operator<=(const ComponentVersion &lhs, const ComponentVersion &rhs)
+{
+    return lhs.majorVersion() < rhs.majorVersion()
+            || (lhs.majorVersion() == rhs.majorVersion() && lhs.minorVersion() <= rhs.minorVersion());
+}
+
+bool operator>(const ComponentVersion &lhs, const ComponentVersion &rhs)
+{
+    return rhs < lhs;
+}
+
+bool operator>=(const ComponentVersion &lhs, const ComponentVersion &rhs)
+{
+    return rhs <= lhs;
+}
+
+bool operator==(const ComponentVersion &lhs, const ComponentVersion &rhs)
+{
+    return lhs.majorVersion() == rhs.majorVersion() && lhs.minorVersion() == rhs.minorVersion();
+}
+
+bool operator!=(const ComponentVersion &lhs, const ComponentVersion &rhs)
+{
+    return !(lhs == rhs);
+}
+
+}