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/*
* Copyright (c) 2015-2016, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT OWNER 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.
*/
/** \file
* \brief Conditional reference.
*/
#ifndef PARSER_COMPONENTCONDREFERENCE_H_
#define PARSER_COMPONENTCONDREFERENCE_H_
#include "ComponentSequence.h"
#include <memory>
#include <string>
namespace ue2 {
class ComponentCondReference : public ComponentSequence {
friend class DumpVisitor;
friend class PrefilterVisitor;
friend class ReferenceVisitor;
friend class PrintVisitor;
public:
explicit ComponentCondReference(unsigned ref);
explicit ComponentCondReference(const std::string &name);
explicit ComponentCondReference(std::unique_ptr<Component> c);
~ComponentCondReference() override;
ComponentCondReference *clone() const override;
Component *accept(ComponentVisitor &v) override;
void accept(ConstComponentVisitor &v) const override;
void addAlternation() override;
std::vector<PositionInfo> first() const override;
std::vector<PositionInfo> last() const override;
bool empty() const override;
void notePositions(GlushkovBuildState &bs) override;
void buildFollowSet(GlushkovBuildState &bs,
const std::vector<PositionInfo> &lastPos) override;
bool repeatable() const override;
private:
ComponentCondReference(const ComponentCondReference &other);
enum Condition {
CONDITION_NUMBER,
CONDITION_NAME,
CONDITION_ASSERTION
};
enum Condition kind;
unsigned ref_id;
std::string ref_name;
std::unique_ptr<Component> assertion;
/** True if an alternation has been added, which means we have both a YES
* and a NO branch. */
bool hasBothBranches;
};
} // namespace ue2
#endif // PARSER_COMPONENTCONDREFERENCE_H_
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