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/*
* Copyright (C) 2007-2019 Apple Inc. All rights reserved.
* Copyright (C) 2018 Yusuke Suzuki <utatane.tea@gmail.com>.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. OR
* 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.
*/
#pragma once
#include "JSDOMBinding.h"
#include "JSNode.h"
#include "WebCoreOpaqueRoot.h"
namespace JSC {
namespace JSCastingHelpers {
template<>
struct InheritsTraits<WebCore::JSNode> {
static constexpr std::optional<JSTypeRange> typeRange { { static_cast<JSType>(WebCore::JSNodeType), static_cast<JSType>(WebCore::JSNodeType + WebCore::JSNodeTypeMask) } };
static_assert(std::numeric_limits<uint8_t>::max() == typeRange->last);
template<typename From>
static inline bool inherits(From* from)
{
return inheritsJSTypeImpl<WebCore::JSNode>(from, *typeRange);
}
};
} // namespace JSCastingHelpers
} // namespace JSC
namespace WebCore {
WEBCORE_EXPORT JSC::JSValue createWrapper(JSC::JSGlobalObject*, JSDOMGlobalObject*, Ref<Node>&&);
WEBCORE_EXPORT JSC::JSObject* getOutOfLineCachedWrapper(JSDOMGlobalObject*, Node&);
inline JSC::JSValue toJS(JSC::JSGlobalObject* lexicalGlobalObject, JSDOMGlobalObject* globalObject, Node& node)
{
if (LIKELY(globalObject->worldIsNormal())) {
if (auto* wrapper = node.wrapper())
return wrapper;
} else {
if (auto* wrapper = getOutOfLineCachedWrapper(globalObject, node))
return wrapper;
}
return createWrapper(lexicalGlobalObject, globalObject, node);
}
// In the C++ DOM, a node tree survives as long as there is a reference to its
// root. In the JavaScript DOM, a node tree survives as long as there is a
// reference to any node in the tree. To model the JavaScript DOM on top of
// the C++ DOM, we ensure that the root of every tree has a JavaScript wrapper.
void willCreatePossiblyOrphanedTreeByRemovalSlowCase(Node& root);
inline void willCreatePossiblyOrphanedTreeByRemoval(Node& root)
{
if (!root.wrapper() && root.hasChildNodes())
willCreatePossiblyOrphanedTreeByRemovalSlowCase(root);
}
inline WebCoreOpaqueRoot root(Node&);
inline WebCoreOpaqueRoot root(Node*);
inline WebCoreOpaqueRoot root(Document*);
ALWAYS_INLINE JSC::JSValue JSNode::nodeType(JSC::JSGlobalObject&) const
{
return JSC::jsNumber(static_cast<uint8_t>(type()) & JSNodeTypeMask);
}
} // namespace WebCore
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