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#ifndef SEARCH_RULE__
#define SEARCH_RULE__
#include "lm/left.hh"
#include "lm/word_index.hh"
#include "search/arity.hh"
#include "search/types.hh"
#include <boost/array.hpp>
#include <iosfwd>
#include <vector>
namespace search {
template <class Model> class Context;
class Rule {
public:
Rule() : arity_(0) {}
static const lm::WordIndex kNonTerminal = lm::kMaxWordIndex;
// Use kNonTerminal for non-terminals.
template <class Model> void Init(const Context<Model> &context, Score additive, const std::vector<lm::WordIndex> &words, bool prepend_bos);
Score Bound() const { return bound_; }
Score Additive() const { return additive_; }
unsigned int Arity() const { return arity_; }
const lm::ngram::ChartState &Lexical(unsigned int index) const {
return lexical_[index];
}
private:
Score bound_, additive_;
unsigned int arity_;
std::vector<lm::ngram::ChartState> lexical_;
};
} // namespace search
#endif // SEARCH_RULE__
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