EncapsulatedVariable.hpp

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#ifndef SXEVAL_ENCASPULATED_VARIABLE_HPP
#define SXEVAL_ENCASPULATED_VARIABLE_HPP
 
#include "sxeval/IOperand.hpp"
#include <functional>
 
namespace sxeval {
 
template <typename T>
class EncapsulatedVariable : public virtual IOperand<T> {
public:
    inline EncapsulatedVariable(const std::function<T(void)> get,
        const std::string& name) : _get(get), _name(name) {}
 
    inline T& getResult() override { return _var; }
 
    inline void retrieve() { _var = _get(); }
 
    inline std::string toString() const override { return _name; }
 
private:
    T _var;
    const std::function<T(void)> _get;
    const std::string _name;
 
};
 
} /* namespace sxeval */
#endif /* SXEVAL_ENCASPULATED_VARIABLE_HPP */