1 /* 2 * Copyright (C) 2009 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef ParserArena_h 27 #define ParserArena_h 28 29 #include <wtf/PassRefPtr.h> 30 #include <wtf/RefPtr.h> 31 #include <wtf/Vector.h> 32 33 namespace JSC { 34 35 class ParserArenaDeletable; 36 class ParserArenaRefCounted; 37 38 class ParserArena { 39 public: swap(ParserArena & otherArena)40 void swap(ParserArena& otherArena) 41 { 42 m_deletableObjects.swap(otherArena.m_deletableObjects); 43 m_refCountedObjects.swap(otherArena.m_refCountedObjects); 44 } 45 ~ParserArena(); 46 deleteWithArena(ParserArenaDeletable * object)47 void deleteWithArena(ParserArenaDeletable* object) { m_deletableObjects.append(object); } derefWithArena(PassRefPtr<ParserArenaRefCounted> object)48 void derefWithArena(PassRefPtr<ParserArenaRefCounted> object) { m_refCountedObjects.append(object); } 49 50 bool contains(ParserArenaRefCounted*) const; 51 ParserArenaRefCounted* last() const; 52 void removeLast(); 53 isEmpty()54 bool isEmpty() const { return m_deletableObjects.isEmpty() && m_refCountedObjects.isEmpty(); } 55 void reset(); 56 57 private: 58 Vector<ParserArenaDeletable*> m_deletableObjects; 59 Vector<RefPtr<ParserArenaRefCounted> > m_refCountedObjects; 60 }; 61 62 } 63 64 #endif 65