Index: Source/WTF/wtf/RetainPtr.h |
diff --git a/Source/WTF/wtf/RetainPtr.h b/Source/WTF/wtf/RetainPtr.h |
deleted file mode 100644 |
index 9981a4d988a8a35d4f93dd226b959ec0bbe576c2..0000000000000000000000000000000000000000 |
--- a/Source/WTF/wtf/RetainPtr.h |
+++ /dev/null |
@@ -1,335 +0,0 @@ |
-/* |
- * Copyright (C) 2005, 2006, 2007, 2008, 2010 Apple Inc. All rights reserved. |
- * |
- * This library is free software; you can redistribute it and/or |
- * modify it under the terms of the GNU Library General Public |
- * License as published by the Free Software Foundation; either |
- * version 2 of the License, or (at your option) any later version. |
- * |
- * This library is distributed in the hope that it will be useful, |
- * but WITHOUT ANY WARRANTY; without even the implied warranty of |
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
- * Library General Public License for more details. |
- * |
- * You should have received a copy of the GNU Library General Public License |
- * along with this library; see the file COPYING.LIB. If not, write to |
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
- * Boston, MA 02110-1301, USA. |
- * |
- */ |
- |
-#ifndef RetainPtr_h |
-#define RetainPtr_h |
- |
-#include <wtf/HashTraits.h> |
-#include <wtf/NullPtr.h> |
-#include <wtf/TypeTraits.h> |
-#include <algorithm> |
- |
-#if USE(CF) |
-#include <CoreFoundation/CoreFoundation.h> |
-#endif |
- |
-#ifdef __OBJC__ |
-#import <Foundation/Foundation.h> |
-#endif |
- |
-#ifndef CF_RELEASES_ARGUMENT |
-#define CF_RELEASES_ARGUMENT |
-#endif |
- |
-#ifndef NS_RELEASES_ARGUMENT |
-#define NS_RELEASES_ARGUMENT |
-#endif |
- |
-namespace WTF { |
- |
- // Unlike most most of our smart pointers, RetainPtr can take either the pointer type or the pointed-to type, |
- // so both RetainPtr<NSDictionary> and RetainPtr<CFDictionaryRef> will work. |
- |
- enum AdoptCFTag { AdoptCF }; |
- enum AdoptNSTag { AdoptNS }; |
- |
-#ifdef __OBJC__ |
- inline void adoptNSReference(id ptr) |
- { |
- if (ptr) { |
- CFRetain(ptr); |
- [ptr release]; |
- } |
- } |
-#endif |
- |
- template<typename T> class RetainPtr { |
- public: |
- typedef typename RemovePointer<T>::Type ValueType; |
- typedef ValueType* PtrType; |
- |
- RetainPtr() : m_ptr(0) {} |
- RetainPtr(PtrType ptr) : m_ptr(ptr) { if (ptr) CFRetain(ptr); } |
- |
- RetainPtr(AdoptCFTag, PtrType ptr) : m_ptr(ptr) { } |
- RetainPtr(AdoptNSTag, PtrType ptr) : m_ptr(ptr) { adoptNSReference(ptr); } |
- |
- RetainPtr(const RetainPtr& o) : m_ptr(o.m_ptr) { if (PtrType ptr = m_ptr) CFRetain(ptr); } |
- |
-#if COMPILER_SUPPORTS(CXX_RVALUE_REFERENCES) |
- RetainPtr(RetainPtr&& o) : m_ptr(o.leakRef()) { } |
-#endif |
- |
- // Hash table deleted values, which are only constructed and never copied or destroyed. |
- RetainPtr(HashTableDeletedValueType) : m_ptr(hashTableDeletedValue()) { } |
- bool isHashTableDeletedValue() const { return m_ptr == hashTableDeletedValue(); } |
- |
- ~RetainPtr() { if (PtrType ptr = m_ptr) CFRelease(ptr); } |
- |
- template<typename U> RetainPtr(const RetainPtr<U>&); |
- |
- void clear(); |
- PtrType leakRef() WARN_UNUSED_RETURN; |
- |
- PtrType get() const { return m_ptr; } |
- PtrType operator->() const { return m_ptr; } |
-#if COMPILER_SUPPORTS(CXX_EXPLICIT_CONVERSIONS) |
- explicit operator PtrType() const { return m_ptr; } |
-#endif |
- |
- bool operator!() const { return !m_ptr; } |
- |
- // This conversion operator allows implicit conversion to bool but not to other integer types. |
- typedef PtrType RetainPtr::*UnspecifiedBoolType; |
- operator UnspecifiedBoolType() const { return m_ptr ? &RetainPtr::m_ptr : 0; } |
- |
- RetainPtr& operator=(const RetainPtr&); |
- template<typename U> RetainPtr& operator=(const RetainPtr<U>&); |
- RetainPtr& operator=(PtrType); |
- template<typename U> RetainPtr& operator=(U*); |
- |
-#if COMPILER_SUPPORTS(CXX_RVALUE_REFERENCES) |
- RetainPtr& operator=(RetainPtr&&); |
- template<typename U> RetainPtr& operator=(RetainPtr<U>&&); |
-#endif |
- |
-#if !COMPILER_SUPPORTS(CXX_NULLPTR) |
- RetainPtr& operator=(std::nullptr_t) { clear(); return *this; } |
-#endif |
- |
- void adoptCF(PtrType); |
- void adoptNS(PtrType); |
- |
- void swap(RetainPtr&); |
- |
- private: |
- static PtrType hashTableDeletedValue() { return reinterpret_cast<PtrType>(-1); } |
- |
- PtrType m_ptr; |
- }; |
- |
- template<typename T> template<typename U> inline RetainPtr<T>::RetainPtr(const RetainPtr<U>& o) |
- : m_ptr(o.get()) |
- { |
- if (PtrType ptr = m_ptr) |
- CFRetain(ptr); |
- } |
- |
- template<typename T> inline void RetainPtr<T>::clear() |
- { |
- if (PtrType ptr = m_ptr) { |
- m_ptr = 0; |
- CFRelease(ptr); |
- } |
- } |
- |
- template<typename T> inline typename RetainPtr<T>::PtrType RetainPtr<T>::leakRef() |
- { |
- PtrType ptr = m_ptr; |
- m_ptr = 0; |
- return ptr; |
- } |
- |
- template<typename T> inline RetainPtr<T>& RetainPtr<T>::operator=(const RetainPtr<T>& o) |
- { |
- PtrType optr = o.get(); |
- if (optr) |
- CFRetain(optr); |
- PtrType ptr = m_ptr; |
- m_ptr = optr; |
- if (ptr) |
- CFRelease(ptr); |
- return *this; |
- } |
- |
- template<typename T> template<typename U> inline RetainPtr<T>& RetainPtr<T>::operator=(const RetainPtr<U>& o) |
- { |
- PtrType optr = o.get(); |
- if (optr) |
- CFRetain(optr); |
- PtrType ptr = m_ptr; |
- m_ptr = optr; |
- if (ptr) |
- CFRelease(ptr); |
- return *this; |
- } |
- |
- template<typename T> inline RetainPtr<T>& RetainPtr<T>::operator=(PtrType optr) |
- { |
- if (optr) |
- CFRetain(optr); |
- PtrType ptr = m_ptr; |
- m_ptr = optr; |
- if (ptr) |
- CFRelease(ptr); |
- return *this; |
- } |
- |
- template<typename T> template<typename U> inline RetainPtr<T>& RetainPtr<T>::operator=(U* optr) |
- { |
- if (optr) |
- CFRetain(optr); |
- PtrType ptr = m_ptr; |
- m_ptr = optr; |
- if (ptr) |
- CFRelease(ptr); |
- return *this; |
- } |
- |
-#if COMPILER_SUPPORTS(CXX_RVALUE_REFERENCES) |
- template<typename T> inline RetainPtr<T>& RetainPtr<T>::operator=(RetainPtr<T>&& o) |
- { |
- adoptCF(o.leakRef()); |
- return *this; |
- } |
- |
- template<typename T> template<typename U> inline RetainPtr<T>& RetainPtr<T>::operator=(RetainPtr<U>&& o) |
- { |
- adoptCF(o.leakRef()); |
- return *this; |
- } |
-#endif |
- |
- template<typename T> inline void RetainPtr<T>::adoptCF(PtrType optr) |
- { |
- PtrType ptr = m_ptr; |
- m_ptr = optr; |
- if (ptr) |
- CFRelease(ptr); |
- } |
- |
- template<typename T> inline void RetainPtr<T>::adoptNS(PtrType optr) |
- { |
- adoptNSReference(optr); |
- |
- PtrType ptr = m_ptr; |
- m_ptr = optr; |
- if (ptr) |
- CFRelease(ptr); |
- } |
- |
- template<typename T> inline void RetainPtr<T>::swap(RetainPtr<T>& o) |
- { |
- std::swap(m_ptr, o.m_ptr); |
- } |
- |
- template<typename T> inline void swap(RetainPtr<T>& a, RetainPtr<T>& b) |
- { |
- a.swap(b); |
- } |
- |
- template<typename T, typename U> inline bool operator==(const RetainPtr<T>& a, const RetainPtr<U>& b) |
- { |
- return a.get() == b.get(); |
- } |
- |
- template<typename T, typename U> inline bool operator==(const RetainPtr<T>& a, U* b) |
- { |
- return a.get() == b; |
- } |
- |
- template<typename T, typename U> inline bool operator==(T* a, const RetainPtr<U>& b) |
- { |
- return a == b.get(); |
- } |
- |
- template<typename T, typename U> inline bool operator!=(const RetainPtr<T>& a, const RetainPtr<U>& b) |
- { |
- return a.get() != b.get(); |
- } |
- |
- template<typename T, typename U> inline bool operator!=(const RetainPtr<T>& a, U* b) |
- { |
- return a.get() != b; |
- } |
- |
- template<typename T, typename U> inline bool operator!=(T* a, const RetainPtr<U>& b) |
- { |
- return a != b.get(); |
- } |
- |
- template<typename T> inline RetainPtr<T> adoptCF(T CF_RELEASES_ARGUMENT) WARN_UNUSED_RETURN; |
- template<typename T> inline RetainPtr<T> adoptCF(T o) |
- { |
- return RetainPtr<T>(AdoptCF, o); |
- } |
- |
- template<typename T> inline RetainPtr<T> adoptNS(T NS_RELEASES_ARGUMENT) WARN_UNUSED_RETURN; |
- template<typename T> inline RetainPtr<T> adoptNS(T o) |
- { |
- return RetainPtr<T>(AdoptNS, o); |
- } |
- |
- // Helper function for creating a RetainPtr using template argument deduction. |
- template<typename T> inline RetainPtr<T> retainPtr(T) WARN_UNUSED_RETURN; |
- template<typename T> inline RetainPtr<T> retainPtr(T o) |
- { |
- return RetainPtr<T>(o); |
- } |
- |
- template<typename P> struct HashTraits<RetainPtr<P> > : SimpleClassHashTraits<RetainPtr<P> > { }; |
- |
- template<typename P> struct PtrHash<RetainPtr<P> > : PtrHash<typename RetainPtr<P>::PtrType> { |
- using PtrHash<typename RetainPtr<P>::PtrType>::hash; |
- static unsigned hash(const RetainPtr<P>& key) { return hash(key.get()); } |
- using PtrHash<typename RetainPtr<P>::PtrType>::equal; |
- static bool equal(const RetainPtr<P>& a, const RetainPtr<P>& b) { return a == b; } |
- static bool equal(typename RetainPtr<P>::PtrType a, const RetainPtr<P>& b) { return a == b; } |
- static bool equal(const RetainPtr<P>& a, typename RetainPtr<P>::PtrType b) { return a == b; } |
- }; |
- |
- template<typename P> struct DefaultHash<RetainPtr<P> > { typedef PtrHash<RetainPtr<P> > Hash; }; |
- |
- template <typename P> |
- struct RetainPtrObjectHashTraits : GenericHashTraits<RetainPtr<P> > { |
- static const bool emptyValueIsZero = true; |
- static const RetainPtr<P>& emptyValue() |
- { |
- static RetainPtr<P>& null = *(new RetainPtr<P>); |
- return null; |
- } |
- static const bool needsDestruction = true; |
- static void constructDeletedValue(RetainPtr<P>& slot) { new (&slot) RetainPtr<P>(HashTableDeletedValue); } |
- static bool isDeletedValue(const RetainPtr<P>& value) { return value.isHashTableDeletedValue(); } |
- }; |
- |
- template <typename P> |
- struct RetainPtrObjectHash { |
- static unsigned hash(const RetainPtr<P>& o) |
- { |
- ASSERT_WITH_MESSAGE(o.get(), "attempt to use null RetainPtr in HashTable"); |
- return CFHash(o.get()); |
- } |
- static bool equal(const RetainPtr<P>& a, const RetainPtr<P>& b) |
- { |
- return CFEqual(a.get(), b.get()); |
- } |
- static const bool safeToCompareToEmptyOrDeleted = false; |
- }; |
-} // namespace WTF |
- |
-using WTF::AdoptCF; |
-using WTF::AdoptNS; |
-using WTF::adoptCF; |
-using WTF::adoptNS; |
-using WTF::RetainPtr; |
-using WTF::retainPtr; |
- |
-#endif // WTF_RetainPtr_h |