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Unified Diff: core/fxcrt/include/cfx_weak_ptr.h

Issue 2382723003: Move core/fxcrt/include to core/fxcrt (Closed)
Patch Set: Rebase to master Created 4 years, 3 months ago
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Index: core/fxcrt/include/cfx_weak_ptr.h
diff --git a/core/fxcrt/include/cfx_weak_ptr.h b/core/fxcrt/include/cfx_weak_ptr.h
deleted file mode 100644
index 64218cd679215bcf94d9a7baa4e35473fdba7d87..0000000000000000000000000000000000000000
--- a/core/fxcrt/include/cfx_weak_ptr.h
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright 2016 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_CFX_WEAK_PTR_H_
-#define CORE_FXCRT_INCLUDE_CFX_WEAK_PTR_H_
-
-#include <memory>
-
-#include "core/fxcrt/include/cfx_retain_ptr.h"
-#include "core/fxcrt/include/fx_system.h"
-
-template <class T, class D = std::default_delete<T>>
-class CFX_WeakPtr {
- public:
- CFX_WeakPtr() {}
- CFX_WeakPtr(const CFX_WeakPtr& that) : m_pHandle(that.m_pHandle) {}
- CFX_WeakPtr(CFX_WeakPtr&& that) { Swap(that); }
- CFX_WeakPtr(std::unique_ptr<T, D> pObj)
- : m_pHandle(new Handle(std::move(pObj))) {}
-
- explicit operator bool() const { return m_pHandle && !!m_pHandle->Get(); }
- bool HasOneRef() const { return m_pHandle && m_pHandle->HasOneRef(); }
- T* operator->() { return m_pHandle->Get(); }
- const T* operator->() const { return m_pHandle->Get(); }
- CFX_WeakPtr& operator=(const CFX_WeakPtr& that) {
- m_pHandle = that.m_pHandle;
- return *this;
- }
- bool operator==(const CFX_WeakPtr& that) const {
- return m_pHandle == that.m_pHandle;
- }
- bool operator!=(const CFX_WeakPtr& that) const { return !(*this == that); }
-
- T* Get() const { return m_pHandle ? m_pHandle->Get() : nullptr; }
- void Clear() {
- if (m_pHandle) {
- m_pHandle->Clear();
- m_pHandle.Reset();
- }
- }
- void Reset() { m_pHandle.Reset(); }
- void Reset(std::unique_ptr<T, D> pObj) {
- m_pHandle.Reset(new Handle(std::move(pObj)));
- }
- void Swap(CFX_WeakPtr& that) { m_pHandle.Swap(that.m_pHandle); }
-
- private:
- class Handle {
- public:
- explicit Handle(std::unique_ptr<T, D> ptr)
- : m_nCount(0), m_pObj(std::move(ptr)) {}
- void Reset(std::unique_ptr<T, D> ptr) { m_pObj = std::move(ptr); }
- void Clear() { // Now you're all weak ptrs ...
- m_pObj.reset(); // unique_ptr nulls first before invoking delete.
- }
- T* Get() const { return m_pObj.get(); }
- T* Retain() {
- ++m_nCount;
- return m_pObj.get();
- }
- void Release() {
- if (--m_nCount == 0)
- delete this;
- }
- bool HasOneRef() const { return m_nCount == 1; }
-
- private:
- ~Handle() {}
-
- intptr_t m_nCount;
- std::unique_ptr<T, D> m_pObj;
- };
-
- CFX_RetainPtr<Handle> m_pHandle;
-};
-
-#endif // CORE_FXCRT_INCLUDE_CFX_WEAK_PTR_H_
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