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/*
 * ExampleStatefulFF.h
 *
 *  Created on: 27 Oct 2015
 *      Author: hieu
 */

#pragma once

#include "StatefulFeatureFunction.h"

namespace Moses2
{

class ExampleStatefulFF: public StatefulFeatureFunction
{
public:
  ExampleStatefulFF(size_t startInd, const std::string &line);
  virtual ~ExampleStatefulFF();

  virtual FFState* BlankState(MemPool &pool, const System &sys) const;
  virtual void EmptyHypothesisState(FFState &state, const ManagerBase &mgr,
                                    const InputType &input, const Hypothesis &hypo) const;

  virtual void
  EvaluateInIsolation(MemPool &pool, const System &system, const Phrase<Moses2::Word> &source,
                      const TargetPhraseImpl &targetPhrase, Scores &scores,
                      SCORE &estimatedScore) const;

  virtual void
  EvaluateInIsolation(MemPool &pool, const System &system, const Phrase<SCFG::Word> &source,
                      const TargetPhrase<SCFG::Word> &targetPhrase, Scores &scores,
                      SCORE &estimatedScore) const;

  virtual void EvaluateWhenApplied(const ManagerBase &mgr,
                                   const Hypothesis &hypo, const FFState &prevState, Scores &scores,
                                   FFState &state) const;

  virtual void EvaluateWhenApplied(const SCFG::Manager &mgr,
                                   const SCFG::Hypothesis &hypo, int featureID, Scores &scores,
                                   FFState &state) const;

};

}