text: /****************************************************************************
  **
  ** 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 "cpptools_global.h"
  #include "cppmodelmanager.h"
  #include "searchsymbols.h"
  #include "stringtable.h"
  
  #include <cplusplus/CppDocument.h>
  
  #include <QHash>
  
  #include <functional>
  
  namespace CppTools {
  
  namespace Internal {
  class CppToolsPlugin;
  } // namespace Internal
  
  class CppLocatorData : public QObject
  {
      Q_OBJECT
  
      // Only one instance, created by the CppToolsPlugin.
      CppLocatorData();
      friend class Internal::CppToolsPlugin;
  
  public:
      void filterAllFiles(IndexItem::Visitor func) const
      {
          flushPendingDocument(true);
          QMutexLocker locker(&m_pendingDocumentsMutex);
          QHash<QString, IndexItem::Ptr> infosByFile = m_infosByFile;
          locker.unlock();
          for (auto i = infosByFile.constBegin(), ei = infosByFile.constEnd(); i != ei; ++i)
              if (i.value()->visitAllChildren(func) == IndexItem::Break)
                  return;
      }
  
  public slots:
      void onDocumentUpdated(const CPlusPlus::Document::Ptr &document);
      void onAboutToRemoveFiles(const QStringList &files);
  
  private:
      void flushPendingDocument(bool force) const;
      QList<IndexItem::Ptr> allIndexItems(const QHash<QString, QList<IndexItem::Ptr>> &items) const;
  
      QString findOrInsertFilePath(const QString &path) const
      { return m_strings->insert(path); }
  
  private:
      Internal::StringTable *m_strings = nullptr; // Used to avoid QString duplication
  
      mutable SearchSymbols m_search;
      mutable QHash<QString, IndexItem::Ptr> m_infosByFile;
  
      mutable QMutex m_pendingDocumentsMutex;
      mutable QVector<CPlusPlus::Document::Ptr> m_pendingDocuments;
  };
  
  } // namespace CppTools
  