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#pragma once
#include <boost/variant/static_visitor.hpp>
#include "mstch/mstch.hpp"
namespace mstch {
class has_token: public boost::static_visitor<bool> {
public:
has_token(const std::string& token): m_token(token) {
}
template<class T>
bool operator()(const T&) const {
return m_token == ".";
}
bool operator()(const map& map) const {
return map.count(m_token) == 1;
}
bool operator()(const std::shared_ptr<object>& object) const {
return object->has(m_token);
}
private:
const std::string& m_token;
};
}
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