File indexing completed on 2024-06-23 05:14:15

 /* -*- mode: c++; c-basic-offset:4 -*-
     utils/cached.h
 
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2009 Klarälvdalens Datakonsult AB
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #pragma once
 
 #include <type_traits>
 
 namespace Kleo
 {
 
 template<typename T>
 class cached
 {
     T m_value;
     bool m_dirty;
 
     using CallType = const typename std::conditional<std::is_standard_layout<T>::value && std::is_trivial<T>::value, T, T &>::type;
 
 public:
     cached()
         : m_value()
         , m_dirty(true)
     {
     }
     /* implicit */ cached(const CallType value)
         : m_value(value)
         , m_dirty(false)
     {
     }
 
     operator T() const
     {
         return m_value;
     }
 
     cached &operator=(T value)
     {
         m_value = value;
         m_dirty = false;
         return *this;
     }
 
     bool dirty() const
     {
         return m_dirty;
     }
 
     T value() const
     {
         return m_value;
     }
 
     void set_dirty()
     {
         m_dirty = true;
     }
 };
 
 }