mirror of
https://github.com/VectorCamp/vectorscan.git
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92 lines
3.2 KiB
C++
92 lines
3.2 KiB
C++
/*
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* Copyright (c) 2015-2016, Intel Corporation
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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 are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * 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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* * Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* 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 THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/** \file
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* \brief Conditional reference.
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*/
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#ifndef PARSER_COMPONENTCONDREFERENCE_H_
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#define PARSER_COMPONENTCONDREFERENCE_H_
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#include "ComponentSequence.h"
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#include <memory>
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#include <string>
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namespace ue2 {
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class ComponentCondReference : public ComponentSequence {
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friend class DumpVisitor;
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friend class PrefilterVisitor;
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friend class ReferenceVisitor;
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friend class PrintVisitor;
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public:
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explicit ComponentCondReference(unsigned ref);
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explicit ComponentCondReference(const std::string &name);
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explicit ComponentCondReference(std::unique_ptr<Component> c);
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~ComponentCondReference() override;
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ComponentCondReference *clone() const override;
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Component *accept(ComponentVisitor &v) override;
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void accept(ConstComponentVisitor &v) const override;
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void addAlternation() override;
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std::vector<PositionInfo> first() const override;
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std::vector<PositionInfo> last() const override;
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bool empty() const override;
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void notePositions(GlushkovBuildState &bs) override;
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void buildFollowSet(GlushkovBuildState &bs,
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const std::vector<PositionInfo> &lastPos) override;
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bool repeatable() const override;
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private:
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ComponentCondReference(const ComponentCondReference &other);
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enum Condition {
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CONDITION_NUMBER,
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CONDITION_NAME,
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CONDITION_ASSERTION
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};
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enum Condition kind;
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unsigned ref_id;
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std::string ref_name;
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std::unique_ptr<Component> assertion;
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/** True if an alternation has been added, which means we have both a YES
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* and a NO branch. */
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bool hasBothBranches;
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};
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} // namespace ue2
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#endif // PARSER_COMPONENTCONDREFERENCE_H_
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