File indexing completed on 2024-05-12 15:50:04

 /*
     SPDX-FileCopyrightText: 2016 Volker Krause <vkrause@kde.org>
 
     SPDX-License-Identifier: MIT
 */
 
 #ifndef KSYNTAXHIGHLIGHTING_DEFINITIONREF_P_H
 #define KSYNTAXHIGHLIGHTING_DEFINITIONREF_P_H
 
 #include "definition.h"
 
 #include <memory>
 
 namespace KSyntaxHighlighting
 {
 class Definition;
 class DefinitionData;
 
 /** Weak reference for Definition instances.
  *
  * This must be used when holding Definition instances
  * in objects hold directly or indirectly by Definition
  * to avoid reference count loops and thus memory leaks.
  *
  * This class follows the rule of zero. It is implicitly movable and copyable.
  *
  * @internal
  */
 class DefinitionRef
 {
 public:
     DefinitionRef();
     explicit DefinitionRef(const Definition &def);
     explicit DefinitionRef(Definition &&def);
     DefinitionRef &operator=(const Definition &def);
     DefinitionRef &operator=(Definition &&def);
 
     Definition definition() const;
 
     /**
      * Checks two definition references for equality.
      */
     bool operator==(const DefinitionRef &other) const;
 
     /**
      * Checks two definition references for inequality.
      */
     bool operator!=(const DefinitionRef &other) const
     {
         return !(*this == other);
     }
 
     /**
      * Checks two definition for equality.
      */
     bool operator==(const Definition &other) const;
 
     /**
      * Checks two definition for inequality.
      */
     bool operator!=(const Definition &other) const
     {
         return !(*this == other);
     }
 
 private:
     friend class DefinitionData;
     std::weak_ptr<DefinitionData> d;
 };
 
 }
 
 #endif