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#pragma once
#include <string>
#include "StatefulFeatureFunction.h"
#include "FFState.h"
namespace Moses
{
class SkeletonState : public FFState
{
int m_targetLen;
public:
SkeletonState(int targetLen)
:m_targetLen(targetLen) {
}
int Compare(const FFState& other) const;
virtual size_t hash() const {
return (size_t) m_targetLen;
}
virtual bool operator==(const FFState& o) const
{
const SkeletonState& other = static_cast<const SkeletonState&>(o);
return m_targetLen == other.m_targetLen;
}
};
class SkeletonStatefulFF : public StatefulFeatureFunction
{
public:
SkeletonStatefulFF(const std::string &line);
bool IsUseable(const FactorMask &mask) const {
return true;
}
virtual const FFState* EmptyHypothesisState(const InputType &input) const {
return new SkeletonState(0);
}
void EvaluateInIsolation(const Phrase &source
, const TargetPhrase &targetPhrase
, ScoreComponentCollection &scoreBreakdown
, ScoreComponentCollection &estimatedFutureScore) const;
void EvaluateWithSourceContext(const InputType &input
, const InputPath &inputPath
, const TargetPhrase &targetPhrase
, const StackVec *stackVec
, ScoreComponentCollection &scoreBreakdown
, ScoreComponentCollection *estimatedFutureScore = NULL) const;
void EvaluateTranslationOptionListWithSourceContext(const InputType &input
, const TranslationOptionList &translationOptionList) const;
FFState* EvaluateWhenApplied(
const Hypothesis& cur_hypo,
const FFState* prev_state,
ScoreComponentCollection* accumulator) const;
FFState* EvaluateWhenApplied(
const ChartHypothesis& /* cur_hypo */,
int /* featureID - used to index the state in the previous hypotheses */,
ScoreComponentCollection* accumulator) const;
void SetParameter(const std::string& key, const std::string& value);
};
}
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