/* * Copyright (C) 2005 Frerich Raabe <raabe@kde.org> * Copyright (C) 2006, 2009, 2013 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 THE AUTHOR ``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 THE AUTHOR 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 "XPathExpressionNode.h" namespace WebCore { namespace XPath { class Step; class Filter final : public Expression { public: Filter(std::unique_ptr<Expression>, Vector<std::unique_ptr<Expression>> predicates); private: Value evaluate() const override; Value::Type resultType() const override { return Value::NodeSetValue; } std::unique_ptr<Expression> m_expression; Vector<std::unique_ptr<Expression>> m_predicates; }; class LocationPath final : public Expression { public: LocationPath(); void setAbsolute() { m_isAbsolute = true; setIsContextNodeSensitive(false); } void evaluate(NodeSet& nodes) const; // nodes is an input/output parameter void appendStep(std::unique_ptr<Step>); void prependStep(std::unique_ptr<Step>); private: Value evaluate() const override; Value::Type resultType() const override { return Value::NodeSetValue; } Vector<std::unique_ptr<Step>> m_steps; bool m_isAbsolute; }; class Path final : public Expression { public: Path(std::unique_ptr<Expression> filter, std::unique_ptr<LocationPath>); private: Value evaluate() const override; Value::Type resultType() const override { return Value::NodeSetValue; } std::unique_ptr<Expression> m_filter; std::unique_ptr<LocationPath> m_path; }; } // namespace XPath } // namespace WebCore