86 lines
3.0 KiB
C++
86 lines
3.0 KiB
C++
/*
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* Copyright (C) 2016-2021 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "StaticRange.h"
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#include "ContainerNode.h"
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#include "JSNode.h"
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#include "Text.h"
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#include <wtf/IsoMallocInlines.h>
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(StaticRange);
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StaticRange::StaticRange(SimpleRange&& range)
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: SimpleRange(WTFMove(range))
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{
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}
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Ref<StaticRange> StaticRange::create(SimpleRange&& range)
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{
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return adoptRef(*new StaticRange(WTFMove(range)));
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}
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Ref<StaticRange> StaticRange::create(const SimpleRange& range)
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{
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auto copiedRange = range;
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return create(WTFMove(copiedRange));
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}
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static bool isDocumentTypeOrAttr(Node& node)
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{
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// Before calling nodeType, do two fast non-virtual checks that cover almost all normal nodes, but are false for DocumentType and Attr.
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if (is<ContainerNode>(node) || is<Text>(node))
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return false;
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// Call nodeType explicitly and use a switch so we don't have to call it twice.
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switch (node.nodeType()) {
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case Node::ATTRIBUTE_NODE:
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case Node::DOCUMENT_TYPE_NODE:
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return true;
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default:
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return false;
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}
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}
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ExceptionOr<Ref<StaticRange>> StaticRange::create(Init&& init)
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{
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ASSERT(init.startContainer);
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ASSERT(init.endContainer);
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if (isDocumentTypeOrAttr(*init.startContainer) || isDocumentTypeOrAttr(*init.endContainer))
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return Exception { InvalidNodeTypeError };
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return create({ { init.startContainer.releaseNonNull(), init.startOffset }, { init.endContainer.releaseNonNull(), init.endOffset } });
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}
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void StaticRange::visitNodesConcurrently(JSC::AbstractSlotVisitor& visitor) const
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{
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visitor.addOpaqueRoot(root(start.container.get()));
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visitor.addOpaqueRoot(root(end.container.get()));
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}
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}
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