+++ /dev/null
-/*
- * Copyright (C) 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
- * Copyright (C) 2008 Collabora Ltd.
- * Copyright (C) 2009 Martin Robinson
- *
- * 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 WTF_GRefPtr_h
-#define WTF_GRefPtr_h
-
-#if ENABLE(GLIB_SUPPORT)
-
-#include "AlwaysInline.h"
-#include "GRefPtr.h"
-#include "RefPtr.h"
-#include <algorithm>
-
-extern "C" void g_object_unref(gpointer);
-extern "C" gpointer g_object_ref_sink(gpointer);
-
-namespace WTF {
-
-enum GRefPtrAdoptType { GRefPtrAdopt };
-template <typename T> inline T* refGPtr(T*);
-template <typename T> inline void derefGPtr(T*);
-template <typename T> class GRefPtr;
-template <typename T> GRefPtr<T> adoptGRef(T*);
-
-template <typename T> class GRefPtr {
-public:
- GRefPtr() : m_ptr(0) { }
-
- GRefPtr(T* ptr)
- : m_ptr(ptr)
- {
- if (ptr)
- refGPtr(ptr);
- }
-
- GRefPtr(const GRefPtr& o)
- : m_ptr(o.m_ptr)
- {
- if (T* ptr = m_ptr)
- refGPtr(ptr);
- }
-
- template <typename U> GRefPtr(const GRefPtr<U>& o)
- : m_ptr(o.get())
- {
- if (T* ptr = m_ptr)
- refGPtr(ptr);
- }
-
- ~GRefPtr()
- {
- if (T* ptr = m_ptr)
- derefGPtr(ptr);
- }
-
- void clear()
- {
- T* ptr = m_ptr;
- m_ptr = 0;
- if (ptr)
- derefGPtr(ptr);
- }
-
- T* leakRef() WARN_UNUSED_RETURN
- {
- T* ptr = m_ptr;
- m_ptr = 0;
- return ptr;
- }
-
- // Hash table deleted values, which are only constructed and never copied or destroyed.
- GRefPtr(HashTableDeletedValueType) : m_ptr(hashTableDeletedValue()) { }
- bool isHashTableDeletedValue() const { return m_ptr == hashTableDeletedValue(); }
-
- T* get() const { return m_ptr; }
- T& operator*() const { return *m_ptr; }
- ALWAYS_INLINE 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* GRefPtr::*UnspecifiedBoolType;
- operator UnspecifiedBoolType() const { return m_ptr ? &GRefPtr::m_ptr : 0; }
-
- GRefPtr& operator=(const GRefPtr&);
- GRefPtr& operator=(T*);
- template <typename U> GRefPtr& operator=(const GRefPtr<U>&);
-
- void swap(GRefPtr&);
- friend GRefPtr adoptGRef<T>(T*);
-
-private:
- static T* hashTableDeletedValue() { return reinterpret_cast<T*>(-1); }
- // Adopting constructor.
- GRefPtr(T* ptr, GRefPtrAdoptType) : m_ptr(ptr) {}
-
- T* m_ptr;
-};
-
-template <typename T> inline GRefPtr<T>& GRefPtr<T>::operator=(const GRefPtr<T>& o)
-{
- T* optr = o.get();
- if (optr)
- refGPtr(optr);
- T* ptr = m_ptr;
- m_ptr = optr;
- if (ptr)
- derefGPtr(ptr);
- return *this;
-}
-
-template <typename T> inline GRefPtr<T>& GRefPtr<T>::operator=(T* optr)
-{
- T* ptr = m_ptr;
- if (optr)
- refGPtr(optr);
- m_ptr = optr;
- if (ptr)
- derefGPtr(ptr);
- return *this;
-}
-
-template <class T> inline void GRefPtr<T>::swap(GRefPtr<T>& o)
-{
- std::swap(m_ptr, o.m_ptr);
-}
-
-template <class T> inline void swap(GRefPtr<T>& a, GRefPtr<T>& b)
-{
- a.swap(b);
-}
-
-template <typename T, typename U> inline bool operator==(const GRefPtr<T>& a, const GRefPtr<U>& b)
-{
- return a.get() == b.get();
-}
-
-template <typename T, typename U> inline bool operator==(const GRefPtr<T>& a, U* b)
-{
- return a.get() == b;
-}
-
-template <typename T, typename U> inline bool operator==(T* a, const GRefPtr<U>& b)
-{
- return a == b.get();
-}
-
-template <typename T, typename U> inline bool operator!=(const GRefPtr<T>& a, const GRefPtr<U>& b)
-{
- return a.get() != b.get();
-}
-
-template <typename T, typename U> inline bool operator!=(const GRefPtr<T>& a, U* b)
-{
- return a.get() != b;
-}
-
-template <typename T, typename U> inline bool operator!=(T* a, const GRefPtr<U>& b)
-{
- return a != b.get();
-}
-
-template <typename T, typename U> inline GRefPtr<T> static_pointer_cast(const GRefPtr<U>& p)
-{
- return GRefPtr<T>(static_cast<T*>(p.get()));
-}
-
-template <typename T, typename U> inline GRefPtr<T> const_pointer_cast(const GRefPtr<U>& p)
-{
- return GRefPtr<T>(const_cast<T*>(p.get()));
-}
-
-template <typename T> inline T* getPtr(const GRefPtr<T>& p)
-{
- return p.get();
-}
-
-template <typename T> GRefPtr<T> adoptGRef(T* p)
-{
- return GRefPtr<T>(p, GRefPtrAdopt);
-}
-
-template <> GHashTable* refGPtr(GHashTable* ptr);
-template <> void derefGPtr(GHashTable* ptr);
-template <> GVariant* refGPtr(GVariant* ptr);
-template <> void derefGPtr(GVariant* ptr);
-template <> GSource* refGPtr(GSource* ptr);
-template <> void derefGPtr(GSource* ptr);
-
-template <typename T> inline T* refGPtr(T* ptr)
-{
- if (ptr)
- g_object_ref_sink(ptr);
- return ptr;
-}
-
-template <typename T> inline void derefGPtr(T* ptr)
-{
- if (ptr)
- g_object_unref(ptr);
-}
-
-} // namespace WTF
-
-using WTF::GRefPtr;
-using WTF::adoptGRef;
-
-#endif // ENABLE(GLIB_SUPPORT)
-
-#endif // WTF_GRefPtr_h
projects / apple / javascriptcore.git / blobdiff