| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | #ifndef REFPTR_H |
| 4 | #define REFPTR_H |
| 5 | |
| 6 | #include "PassRefPtr.h" |
| 7 | |
| 8 | template <typename T> |
| 9 | class RefPtr { |
| 10 | public: |
| 11 | RefPtr() : m_ptr(0) {} |
| 12 | RefPtr(const RefPtr<T> &other) |
| 13 | : m_ptr(other.m_ptr) |
| 14 | { |
| 15 | if (m_ptr) |
| 16 | m_ptr->ref(); |
| 17 | } |
| 18 | |
| 19 | RefPtr<T>& operator=(const RefPtr<T>& other) |
| 20 | { |
| 21 | if (other.m_ptr) |
| 22 | other.m_ptr->ref(); |
| 23 | if (m_ptr) |
| 24 | m_ptr->deref(); |
| 25 | m_ptr = other.m_ptr; |
| 26 | return *this; |
| 27 | } |
| 28 | |
| 29 | RefPtr(const PassRefPtr<T>& other) |
| 30 | : m_ptr(other.leakRef()) |
| 31 | { |
| 32 | } |
| 33 | |
| 34 | ~RefPtr() |
| 35 | { |
| 36 | if (m_ptr) |
| 37 | m_ptr->deref(); |
| 38 | } |
| 39 | |
| 40 | T* operator->() const { return m_ptr; } |
| 41 | T* get() const { return m_ptr; } |
| 42 | bool operator!() const { return !m_ptr; } |
| 43 | |
| 44 | PassRefPtr<T> release() |
| 45 | { |
| 46 | T* ptr = m_ptr; |
| 47 | m_ptr = 0; |
| 48 | return adoptRef(ptr); |
| 49 | } |
| 50 | |
| 51 | private: |
| 52 | T* m_ptr; |
| 53 | }; |
| 54 | |
| 55 | #endif // REFPTR_H |
| 56 |