ClangCodeModel: Move highlighting code into its own set of files

No functional changes.

Change-Id: If6e5da7e79bf39e564f0f38520ae088f76543642
Reviewed-by: David Schulz <david.schulz@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

src/plugins/clangcodemodel/tasktimers.h

@@ -0,0 +1,90 @@
+/****************************************************************************
+**
+** Copyright (C) 2022 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.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <QElapsedTimer>
+#include <QLoggingCategory>
+#include <QString>
+
+namespace ClangCodeModel::Internal {
+
+Q_DECLARE_LOGGING_CATEGORY(clangdLogTiming);
+
+// TODO: Generalize, document interface and move to Utils?
+class TaskTimer
+{
+public:
+    TaskTimer(const QString &task) : m_task(task) {}
+
+    void stopTask();
+    void startSubtask();
+    void stopSubtask(bool isFinalizing);
+
+    QElapsedTimer startTimer() const { return m_startTimer; }
+
+private:
+    const QString m_task;
+    QElapsedTimer m_timer;
+    QElapsedTimer m_startTimer;
+    qint64 m_elapsedMs = 0;
+    int m_subtasks = 0;
+    bool m_started = false;
+    bool m_finalized = false;
+};
+
+class SubtaskTimer
+{
+public:
+    SubtaskTimer(TaskTimer &timer) : m_timer(timer) { m_timer.startSubtask(); }
+    ~SubtaskTimer() { m_timer.stopSubtask(m_isFinalizing); }
+
+protected:
+    void makeFinalizing() { m_isFinalizing = true; }
+
+private:
+    TaskTimer &m_timer;
+    bool m_isFinalizing = false;
+};
+
+class FinalizingSubtaskTimer : public SubtaskTimer
+{
+public:
+    FinalizingSubtaskTimer(TaskTimer &timer) : SubtaskTimer(timer) { makeFinalizing(); }
+};
+
+class ThreadedSubtaskTimer
+{
+public:
+    ThreadedSubtaskTimer(const QString &task, const TaskTimer &taskTimer);
+    ~ThreadedSubtaskTimer();
+
+private:
+    const QString m_task;
+    QElapsedTimer m_timer;
+    const TaskTimer &m_taskTimer;
+};
+
+} // namespace ClangCodeModel::Internal