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/*
* Copyright (C) 2005 Frerich Raabe <raabe@kde.org>
* Copyright (C) 2006, 2009 Apple Inc.
*
* 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.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_XML_XPATH_PATH_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_XML_XPATH_PATH_H_
#include "third_party/blink/renderer/core/xml/xpath_expression_node.h"
#include "third_party/blink/renderer/core/xml/xpath_node_set.h"
namespace blink {
namespace xpath {
class Predicate;
class Step;
class Filter final : public Expression {
public:
Filter(Expression*, GCedHeapVector<Member<Predicate>>&);
~Filter() override;
void Trace(Visitor*) const override;
Value Evaluate(EvaluationContext&) const override;
private:
Value::Type ResultType() const override { return Value::kNodeSetValue; }
Member<Expression> expr_;
HeapVector<Member<Predicate>> predicates_;
};
class LocationPath final : public Expression {
public:
LocationPath();
~LocationPath() override;
void Trace(Visitor*) const override;
Value Evaluate(EvaluationContext&) const override;
void SetAbsolute(bool value) {
absolute_ = value;
SetIsContextNodeSensitive(!absolute_);
}
void Evaluate(EvaluationContext&,
NodeSet&) const; // nodes is an input/output parameter
void AppendStep(Step*);
void InsertFirstStep(Step*);
private:
Value::Type ResultType() const override { return Value::kNodeSetValue; }
HeapVector<Member<Step>> steps_;
bool absolute_;
};
class Path final : public Expression {
public:
Path(Expression*, LocationPath*);
~Path() override;
void Trace(Visitor*) const override;
Value Evaluate(EvaluationContext&) const override;
private:
Value::Type ResultType() const override { return Value::kNodeSetValue; }
Member<Expression> filter_;
Member<LocationPath> path_;
};
} // namespace xpath
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_XML_XPATH_PATH_H_
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