AnswerDontKnow.cpp

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/*
 * This file is part of KnowRob, please consult
 * https://github.com/knowrob/knowrob for license details.
 */
 
#include "knowrob/queries/AnswerDontKnow.h"
#include "knowrob/integration/python/utils.h"
 
namespace knowrob {
    const std::shared_ptr<const AnswerDontKnow> &GenericDontKnow() {
        static const auto instance = std::make_shared<const AnswerDontKnow>();
        return instance;
    }
} // namespace knowrob
 
using namespace knowrob;
 
AnswerDontKnow::AnswerDontKnow()
        : Answer() {
}
 
AnswerDontKnow::AnswerDontKnow(const AnswerDontKnow &other)
        : Answer(other) {
}
 
std::string AnswerDontKnow::stringFormOfDontKnow() const {
    std::stringstream os;
    if (reasonerTerm_) {
        os << "[" << *reasonerTerm_ << "] ";
    }
    os << "don't know\n";
    return os.str();
}
 
std::string AnswerDontKnow::humanReadableFormOfDontKnow() const {
    static const std::string longMsg = "there was no evidence to conclude either yes or no";
    return longMsg;
}
 
namespace knowrob::py {
    template<>
    void createType<AnswerDontKnow>() {
        using namespace boost::python;
        class_<AnswerDontKnow, std::shared_ptr<AnswerDontKnow>, bases<Answer>>
                ("AnswerDontKnow", init<>());
        // Allow implicit conversion of shared_ptr< AnswerDontKnow > to shared_ptr< const AnswerDontKnow >
        register_ptr_to_python<std::shared_ptr<const AnswerDontKnow> >();
        implicitly_convertible<std::shared_ptr<AnswerDontKnow>, std::shared_ptr<const AnswerDontKnow> >();
    }
}