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/***********************************************************************
Moses - factored phrase-based language decoder
Copyright (C) 2011 University of Edinburgh
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
***********************************************************************/
#pragma once
#ifndef moses_ChartRuleLookupManagerMemory_h
#define moses_ChartRuleLookupManagerMemory_h
#include <vector>
#if HAVE_CONFIG_H
#include "config.h"
#ifdef USE_BOOST_POOL
#include <boost/pool/object_pool.hpp>
#endif
#endif
#include "ChartRuleLookupManager.h"
#include "DotChartInMemory.h"
#include "NonTerminal.h"
#include "PhraseDictionaryNodeSCFG.h"
#include "PhraseDictionarySCFG.h"
namespace Moses
{
class ChartTranslationOptionList;
class DottedRuleColl;
class WordsRange;
// Implementation of ChartRuleLookupManager for in-memory rule tables.
class ChartRuleLookupManagerMemory : public ChartRuleLookupManager
{
public:
ChartRuleLookupManagerMemory(const InputType &sentence,
const ChartCellCollection &cellColl,
const PhraseDictionarySCFG &ruleTable);
~ChartRuleLookupManagerMemory();
virtual void GetChartRuleCollection(
const WordsRange &range,
bool adhereTableLimit,
ChartTranslationOptionList &outColl);
private:
void ExtendPartialRuleApplication(
const DottedRuleInMemory &prevDottedRule,
size_t startPos,
size_t endPos,
size_t stackInd,
DottedRuleColl &dottedRuleColl);
std::vector<DottedRuleColl*> m_dottedRuleColls;
const PhraseDictionarySCFG &m_ruleTable;
#ifdef USE_BOOST_POOL
// Use an object pool to allocate the dotted rules for this sentence. We
// allocate a lot of them and this has been seen to significantly improve
// performance, especially for multithreaded decoding.
boost::object_pool<DottedRuleInMemory> m_dottedRulePool;
#endif
};
} // namespace Moses
#endif
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