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