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Diffstat (limited to 'src/javascript/jsc/bindings/webcore/Node.h')
| -rw-r--r-- | src/javascript/jsc/bindings/webcore/Node.h | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/src/javascript/jsc/bindings/webcore/Node.h b/src/javascript/jsc/bindings/webcore/Node.h deleted file mode 100644 index df9917a25..000000000 --- a/src/javascript/jsc/bindings/webcore/Node.h +++ /dev/null @@ -1,132 +0,0 @@ -/* - * Copyright (C) 1999 Lars Knoll (knoll@kde.org) - * (C) 1999 Antti Koivisto (koivisto@kde.org) - * (C) 2001 Dirk Mueller (mueller@kde.org) - * Copyright (C) 2004-2020 Apple Inc. All rights reserved. - * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) - * - * 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. - * - */ - -#pragma once - -#include "root.h" - -#include "EventTarget.h" -#include "ExceptionOr.h" -#include <wtf/CompactUniquePtrTuple.h> -#include <wtf/FixedVector.h> -#include <wtf/Forward.h> -// #include <wtf/IsoMalloc.h> -#include <wtf/ListHashSet.h> -#include <wtf/MainThread.h> -#include <wtf/OptionSet.h> -#include <wtf/URLHash.h> -#include <wtf/WeakPtr.h> -#include "EventTargetConcrete.h" - -namespace WebCore { - -// The full Node type is way too much stuff -// this ones just a baby -class Node : public RefPtr<Node>, CanMakeWeakPtr<Node>, public EventTarget { - WTF_MAKE_ISO_ALLOCATED(Node); - - static constexpr uint32_t s_refCountIncrement = 2; - static constexpr uint32_t s_refCountMask = ~static_cast<uint32_t>(1); - -public: - void defaultEventHandler(Event&) - { - // do nothing - } - - void handleEvent(ScriptExecutionContext&, Event&) - { - } - - bool hasEventTargetData() - { - return true; - } - - void ref() const; - void deref() const; - bool hasOneRef() const; - unsigned refCount() const; - - void removedLastRef() {} - - mutable uint32_t m_refCountAndParentBit { s_refCountIncrement }; - // mutable OptionSet<NodeFlag> m_nodeFlags; -}; - -#if ASSERT_ENABLED - -inline void adopted(Node* node) -{ - if (!node) - return; - ASSERT(!node->m_deletionHasBegun); - ASSERT(!node->m_inRemovedLastRefFunction); - node->m_adoptionIsRequired = false; -} - -#endif // ASSERT_ENABLED - -ALWAYS_INLINE void Node::ref() const -{ - ASSERT(isMainThread()); - ASSERT(!m_deletionHasBegun); - ASSERT(!m_inRemovedLastRefFunction); - ASSERT(!m_adoptionIsRequired); - m_refCountAndParentBit += s_refCountIncrement; -} - -ALWAYS_INLINE void Node::deref() const -{ - ASSERT(isMainThread()); - ASSERT(refCount()); - ASSERT(!m_deletionHasBegun); - ASSERT(!m_inRemovedLastRefFunction); - ASSERT(!m_adoptionIsRequired); - auto updatedRefCount = m_refCountAndParentBit - s_refCountIncrement; - if (!updatedRefCount) { - // Don't update m_refCountAndParentBit to avoid double destruction through use of Ref<T>/RefPtr<T>. - // (This is a security mitigation in case of programmer error. It will ASSERT in debug builds.) -#if ASSERT_ENABLED - m_inRemovedLastRefFunction = true; -#endif - const_cast<Node&>(*this).removedLastRef(); - return; - } - m_refCountAndParentBit = updatedRefCount; -} - -ALWAYS_INLINE bool Node::hasOneRef() const -{ - ASSERT(!m_deletionHasBegun); - ASSERT(!m_inRemovedLastRefFunction); - return refCount() == 1; -} - -ALWAYS_INLINE unsigned Node::refCount() const -{ - return m_refCountAndParentBit / s_refCountIncrement; -} - -}
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