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-rw-r--r--JavaScriptCore/wtf/GOwnPtr.h98
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diff --git a/JavaScriptCore/wtf/GOwnPtr.h b/JavaScriptCore/wtf/GOwnPtr.h
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--- a/JavaScriptCore/wtf/GOwnPtr.h
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-/*
- * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
- * Copyright (C) 2008 Collabora Ltd.
- *
- * 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 GOwnPtr_h
-#define GOwnPtr_h
-
-#include <algorithm>
-#include <glib.h>
-#include <wtf/Assertions.h>
-#include <wtf/Noncopyable.h>
-
-namespace WTF {
- template <typename T> inline void freeOwnedGPtr(T* ptr) { g_free(reinterpret_cast<void*>(ptr)); }
- template<> void freeOwnedGPtr<GError>(GError*);
- template<> void freeOwnedGPtr<GList>(GList*);
- template<> void freeOwnedGPtr<GCond>(GCond*);
- template<> void freeOwnedGPtr<GMutex>(GMutex*);
- template<> void freeOwnedGPtr<GPatternSpec>(GPatternSpec*);
- template<> void freeOwnedGPtr<GDir>(GDir*);
- template<> void freeOwnedGPtr<GHashTable>(GHashTable*);
-
- template <typename T> class GOwnPtr : public Noncopyable {
- public:
- explicit GOwnPtr(T* ptr = 0) : m_ptr(ptr) { }
- ~GOwnPtr() { freeOwnedGPtr(m_ptr); }
-
- T* get() const { return m_ptr; }
- T* release() { T* ptr = m_ptr; m_ptr = 0; return ptr; }
- T*& outPtr() { ASSERT(!m_ptr); return m_ptr; }
-
- void set(T* ptr) { ASSERT(!ptr || m_ptr != ptr); freeOwnedGPtr(m_ptr); m_ptr = ptr; }
- void clear() { freeOwnedGPtr(m_ptr); m_ptr = 0; }
-
- T& operator*() const { ASSERT(m_ptr); return *m_ptr; }
- T* operator->() const { ASSERT(m_ptr); 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* GOwnPtr::*UnspecifiedBoolType;
- operator UnspecifiedBoolType() const { return m_ptr ? &GOwnPtr::m_ptr : 0; }
-
- void swap(GOwnPtr& o) { std::swap(m_ptr, o.m_ptr); }
-
- private:
- T* m_ptr;
- };
-
- template <typename T> inline void swap(GOwnPtr<T>& a, GOwnPtr<T>& b) { a.swap(b); }
-
- template <typename T, typename U> inline bool operator==(const GOwnPtr<T>& a, U* b)
- {
- return a.get() == b;
- }
-
- template <typename T, typename U> inline bool operator==(T* a, const GOwnPtr<U>& b)
- {
- return a == b.get();
- }
-
- template <typename T, typename U> inline bool operator!=(const GOwnPtr<T>& a, U* b)
- {
- return a.get() != b;
- }
-
- template <typename T, typename U> inline bool operator!=(T* a, const GOwnPtr<U>& b)
- {
- return a != b.get();
- }
-
- template <typename T> inline typename GOwnPtr<T>::PtrType getPtr(const GOwnPtr<T>& p)
- {
- return p.get();
- }
-
-} // namespace WTF
-
-using WTF::GOwnPtr;
-
-#endif // GOwnPtr_h