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-rw-r--r--JavaScriptCore/API/JSRetainPtr.h208
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diff --git a/JavaScriptCore/API/JSRetainPtr.h b/JavaScriptCore/API/JSRetainPtr.h
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--- a/JavaScriptCore/API/JSRetainPtr.h
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-/*
- * Copyright (C) 2005, 2006, 2007, 2010 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
- * its contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef JSRetainPtr_h
-#define JSRetainPtr_h
-
-#include <JavaScriptCore/JSStringRef.h>
-#include <algorithm>
-
-inline void JSRetain(JSStringRef string) { JSStringRetain(string); }
-inline void JSRelease(JSStringRef string) { JSStringRelease(string); }
-
-enum AdoptTag { Adopt };
-
-template<typename T> class JSRetainPtr {
-public:
- JSRetainPtr() : m_ptr(0) { }
- JSRetainPtr(T ptr) : m_ptr(ptr) { if (ptr) JSRetain(ptr); }
- JSRetainPtr(AdoptTag, T ptr) : m_ptr(ptr) { }
- JSRetainPtr(const JSRetainPtr&);
- template<typename U> JSRetainPtr(const JSRetainPtr<U>&);
- ~JSRetainPtr();
-
- T get() const { return m_ptr; }
-
- void clear();
- T leakRef();
-
- T operator->() const { return m_ptr; }
-
- bool operator!() const { return !m_ptr; }
-
- // This conversion operator allows implicit conversion to bool but not to other integer types.
- typedef T JSRetainPtr::*UnspecifiedBoolType;
- operator UnspecifiedBoolType() const { return m_ptr ? &JSRetainPtr::m_ptr : 0; }
-
- JSRetainPtr& operator=(const JSRetainPtr&);
- template<typename U> JSRetainPtr& operator=(const JSRetainPtr<U>&);
- JSRetainPtr& operator=(T);
- template<typename U> JSRetainPtr& operator=(U*);
-
- void adopt(T);
-
- void swap(JSRetainPtr&);
-
- // FIXME: Remove releaseRef once we change all callers to call leakRef instead.
- T releaseRef() { return leakRef(); }
-
-private:
- T m_ptr;
-};
-
-template<typename T> inline JSRetainPtr<T>::JSRetainPtr(const JSRetainPtr& o)
- : m_ptr(o.m_ptr)
-{
- if (m_ptr)
- JSRetain(m_ptr);
-}
-
-template<typename T> template<typename U> inline JSRetainPtr<T>::JSRetainPtr(const JSRetainPtr<U>& o)
- : m_ptr(o.get())
-{
- if (m_ptr)
- JSRetain(m_ptr);
-}
-
-template<typename T> inline JSRetainPtr<T>::~JSRetainPtr()
-{
- if (m_ptr)
- JSRelease(m_ptr);
-}
-
-template<typename T> inline void JSRetainPtr<T>::clear()
-{
- if (T ptr = m_ptr) {
- m_ptr = 0;
- JSRelease(ptr);
- }
-}
-
-template<typename T> inline T JSRetainPtr<T>::leakRef()
-{
- T ptr = m_ptr;
- m_ptr = 0;
- return ptr;
-}
-
-template<typename T> inline JSRetainPtr<T>& JSRetainPtr<T>::operator=(const JSRetainPtr<T>& o)
-{
- T optr = o.get();
- if (optr)
- JSRetain(optr);
- T ptr = m_ptr;
- m_ptr = optr;
- if (ptr)
- JSRelease(ptr);
- return *this;
-}
-
-template<typename T> template<typename U> inline JSRetainPtr<T>& JSRetainPtr<T>::operator=(const JSRetainPtr<U>& o)
-{
- T optr = o.get();
- if (optr)
- JSRetain(optr);
- T ptr = m_ptr;
- m_ptr = optr;
- if (ptr)
- JSRelease(ptr);
- return *this;
-}
-
-template<typename T> inline JSRetainPtr<T>& JSRetainPtr<T>::operator=(T optr)
-{
- if (optr)
- JSRetain(optr);
- T ptr = m_ptr;
- m_ptr = optr;
- if (ptr)
- JSRelease(ptr);
- return *this;
-}
-
-template<typename T> inline void JSRetainPtr<T>::adopt(T optr)
-{
- T ptr = m_ptr;
- m_ptr = optr;
- if (ptr)
- JSRelease(ptr);
-}
-
-template<typename T> template<typename U> inline JSRetainPtr<T>& JSRetainPtr<T>::operator=(U* optr)
-{
- if (optr)
- JSRetain(optr);
- T ptr = m_ptr;
- m_ptr = optr;
- if (ptr)
- JSRelease(ptr);
- return *this;
-}
-
-template<typename T> inline void JSRetainPtr<T>::swap(JSRetainPtr<T>& o)
-{
- std::swap(m_ptr, o.m_ptr);
-}
-
-template<typename T> inline void swap(JSRetainPtr<T>& a, JSRetainPtr<T>& b)
-{
- a.swap(b);
-}
-
-template<typename T, typename U> inline bool operator==(const JSRetainPtr<T>& a, const JSRetainPtr<U>& b)
-{
- return a.get() == b.get();
-}
-
-template<typename T, typename U> inline bool operator==(const JSRetainPtr<T>& a, U* b)
-{
- return a.get() == b;
-}
-
-template<typename T, typename U> inline bool operator==(T* a, const JSRetainPtr<U>& b)
-{
- return a == b.get();
-}
-
-template<typename T, typename U> inline bool operator!=(const JSRetainPtr<T>& a, const JSRetainPtr<U>& b)
-{
- return a.get() != b.get();
-}
-
-template<typename T, typename U> inline bool operator!=(const JSRetainPtr<T>& a, U* b)
-{
- return a.get() != b;
-}
-
-template<typename T, typename U> inline bool operator!=(T* a, const JSRetainPtr<U>& b)
-{
- return a != b.get();
-}
-
-
-#endif // JSRetainPtr_h
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