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#include "PhraseBasedReorderingState.h" |
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#include "LexicalReordering.h" |
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#include "../../PhraseBased/Hypothesis.h" |
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#include "../../InputPathBase.h" |
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#include "../../PhraseBased/Manager.h" |
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using namespace std; |
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namespace Moses2 |
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{ |
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PhraseBasedReorderingState::PhraseBasedReorderingState(const LRModel &config, |
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LRModel::Direction dir, size_t offset) : |
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LRState(config, dir, offset) |
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{ |
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prevPath = NULL; |
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prevTP = NULL; |
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} |
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void PhraseBasedReorderingState::Init(const LRState *prev, |
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const TargetPhrase<Moses2::Word> &topt, const InputPathBase &path, bool first, |
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const Bitmap *coverage) |
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{ |
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prevTP = &topt; |
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prevPath = &path; |
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m_first = first; |
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} |
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size_t PhraseBasedReorderingState::hash() const |
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{ |
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size_t ret; |
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ret = (size_t) &prevPath->range; |
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boost::hash_combine(ret, m_direction); |
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return ret; |
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} |
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bool PhraseBasedReorderingState::operator==(const FFState& o) const |
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{ |
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if (&o == this) return true; |
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const PhraseBasedReorderingState &other = |
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static_cast<const PhraseBasedReorderingState&>(o); |
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if (&prevPath->range == &other.prevPath->range) { |
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if (m_direction == LRModel::Forward) { |
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int compareScore = ComparePrevScores(other.prevTP); |
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return compareScore == 0; |
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} else { |
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return true; |
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} |
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} else { |
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return false; |
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} |
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} |
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void PhraseBasedReorderingState::Expand(const ManagerBase &mgr, |
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const LexicalReordering &ff, const Hypothesis &hypo, size_t phraseTableInd, |
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Scores &scores, FFState &state) const |
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{ |
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if ((m_direction != LRModel::Forward) || !m_first) { |
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LRModel const& lrmodel = m_configuration; |
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Range const &cur = hypo.GetInputPath().range; |
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LRModel::ReorderingType reoType = ( |
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m_first ? |
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lrmodel.GetOrientation(cur) : |
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lrmodel.GetOrientation(prevPath->range, cur)); |
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CopyScores(mgr.system, scores, hypo.GetTargetPhrase(), reoType); |
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} |
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PhraseBasedReorderingState &stateCast = |
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static_cast<PhraseBasedReorderingState&>(state); |
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stateCast.Init(this, hypo.GetTargetPhrase(), hypo.GetInputPath(), false, |
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NULL); |
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} |
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} |
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