File indexing completed on 2024-06-16 04:23:17

 /*
     SPDX-FileCopyrightText: 2005 Frerich Raabe <raabe@kde.org>
     SPDX-FileCopyrightText: 2007-2008 David Nolden <david.nolden.kdevelop@art-master.de>
     SPDX-FileCopyrightText: 2014 Kevin Funk <kfunk@kde.org>
 
     SPDX-License-Identifier: BSD-2-Clause
 */
 
 #ifndef KDEVPLATFORM_TYPEPOINTER_H
 #define KDEVPLATFORM_TYPEPOINTER_H
 
 #include <QExplicitlySharedDataPointer>
 
 namespace KDevelop {
 /**
  * @brief QExplicitlySharedDataPointer wrapper with convenience functions attached
  */
 template <class T>
 class TypePtr
     : public QExplicitlySharedDataPointer<T>
 {
     using Base = QExplicitlySharedDataPointer<T>;
 
 public:
     TypePtr() = default;
     explicit TypePtr(T* data) noexcept
         : Base(data)
     {
     }
     TypePtr& operator=(T* data) noexcept
     {
         Base::operator=(data);
         return *this;
     }
     TypePtr(const TypePtr&) = default;
     TypePtr& operator=(const TypePtr&) = default;
     TypePtr(TypePtr&&) = default;
     TypePtr& operator=(TypePtr&&) = default;
 
     template<class X>
     TypePtr(const TypePtr<X>& o) noexcept
         : Base(o)
     {
     }
 
     template<class X>
     TypePtr(TypePtr<X>&& o) noexcept
         : Base(std::move(o))
     {
     }
 
     /**
      * Convert TypePtr<T> to TypePtr<U>, using a @c dynamic_cast.
      * This will compile whenever T* and U* are compatible, i.e.
      * T is a subclass of U or vice-versa.
      * Example syntax:
      * @code
      *   TypePtr<T> tPtr;
      *   TypePtr<U> uPtr = tPtr.dynamicCast<U>();
      * @endcode
      * Since a dynamic_cast is used, if U derives from T, and tPtr isn't an instance of U, uPtr will be 0.
      */
     template<class U>
     TypePtr<U> dynamicCast() const
     {
         return TypePtr<U>(dynamic_cast<U*>(Base::data()));
     }
 
     /**
      * Convert TypePtr<T> to TypePtr<U>, using a @c static_cast.
      * This will compile whenever T* and U* are compatible, i.e.
      * T is a subclass of U or vice-versa.
      * Example syntax:
      * @code
      *   TypePtr<T> tPtr;
      *   TypePtr<U> uPtr = tPtr.staticCast<U>();
      * @endcode
      */
     template<class U>
     TypePtr<U> staticCast() const
     {
         Q_ASSERT(!Base::data() || dynamic_cast<U*>(Base::data()));
         return TypePtr<U>(static_cast<U*>(Base::data()));
     }
 };
 }
 
 #endif