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#include "HReorderingBackwardState.h" |
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#include "../../PhraseBased/Hypothesis.h" |
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#include "../../PhraseBased/Manager.h" |
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namespace Moses2 |
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{ |
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HReorderingBackwardState::HReorderingBackwardState(MemPool &pool, |
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const LRModel &config, size_t offset) : |
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LRState(config, LRModel::Backward, offset), reoStack(pool) |
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{ |
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} |
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HReorderingBackwardState::~HReorderingBackwardState() |
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{ |
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} |
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void HReorderingBackwardState::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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reoStack.Init(); |
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} |
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size_t HReorderingBackwardState::hash() const |
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{ |
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size_t ret = reoStack.hash(); |
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return ret; |
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} |
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bool HReorderingBackwardState::operator==(const FFState& o) const |
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{ |
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const HReorderingBackwardState& other = |
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static_cast<const HReorderingBackwardState&>(o); |
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bool ret = reoStack == other.reoStack; |
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return ret; |
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} |
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std::string HReorderingBackwardState::ToString() const |
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{ |
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return "HReorderingBackwardState " + SPrint(m_offset); |
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} |
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void HReorderingBackwardState::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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HReorderingBackwardState &nextState = |
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static_cast<HReorderingBackwardState&>(state); |
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nextState.Init(this, hypo.GetTargetPhrase(), hypo.GetInputPath(), false, |
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NULL); |
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nextState.reoStack = reoStack; |
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const Range &swrange = hypo.GetInputPath().range; |
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int reoDistance = nextState.reoStack.ShiftReduce(swrange); |
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ReorderingType reoType = m_configuration.GetOrientation(reoDistance); |
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CopyScores(mgr.system, scores, hypo.GetTargetPhrase(), reoType); |
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} |
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} |
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