/* * Copyright (C) 2016-2020 Apple Inc. All rights reserved. * * 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. AND ITS CONTRIBUTORS ``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 ITS 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. */ #include "config.h" #include "StaticRange.h" #include "ContainerNode.h" #include "Text.h" namespace WebCore { StaticRange::StaticRange(SimpleRange&& range) : SimpleRange(WTFMove(range)) { } Ref<StaticRange> StaticRange::create(SimpleRange&& range) { return adoptRef(*new StaticRange(WTFMove(range))); } Ref<StaticRange> StaticRange::create(const SimpleRange& range) { auto copiedRange = range; return create(WTFMove(copiedRange)); } static bool isDocumentTypeOrAttr(Node& node) { // Before calling nodeType, do two fast non-virtual checks that cover almost all normal nodes, but are false for DocumentType and Attr. if (is<ContainerNode>(node) || is<Text>(node)) return false; // Call nodeType explicitly and use a switch so we don't have to call it twice. switch (node.nodeType()) { case Node::ATTRIBUTE_NODE: case Node::DOCUMENT_TYPE_NODE: return true; default: return false; } } ExceptionOr<Ref<StaticRange>> StaticRange::create(Init&& init) { ASSERT(init.startContainer); ASSERT(init.endContainer); if (isDocumentTypeOrAttr(*init.startContainer) || isDocumentTypeOrAttr(*init.endContainer)) return Exception { InvalidNodeTypeError }; return create({ { init.startContainer.releaseNonNull(), init.startOffset }, { init.endContainer.releaseNonNull(), init.endOffset } }); } }