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diff --git a/src/libs/clangsupport/sourcefilepathcontainerbase.h b/src/libs/clangsupport/sourcefilepathcontainerbase.h
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+++ b/src/libs/clangsupport/sourcefilepathcontainerbase.h
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+/****************************************************************************
+**
+** Copyright (C) 2016 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 "filepath.h"
+
+#include <unordered_map>
+
+namespace ClangBackEnd {
+
+using FilePathDict = std::unordered_map<uint, FilePath>;
+
+class SourceFilePathContainerBase
+{
+public:
+    SourceFilePathContainerBase() = default;
+    SourceFilePathContainerBase(std::unordered_map<uint, FilePath> &&filePathHash)
+        : m_filePathHash(std::move(filePathHash))
+    {
+    }
+
+    void insertFilePath(uint fileId, Utils::PathString &&filePath)
+    {
+        if (m_filePathHash.find(fileId) == m_filePathHash.end())
+            m_filePathHash.emplace(fileId, FilePath(std::move(filePath)));
+    }
+
+    void reserve(std::size_t size)
+    {
+        m_filePathHash.reserve(size / 3);
+    }
+
+    const FilePathDict &filePaths() const
+    {
+        return m_filePathHash;
+    }
+
+protected:
+    FilePathDict m_filePathHash;
+};
+
+} // namespace ClangBackEnd