nameable.h

#pragma once
 
#include <string>
 
namespace smlt {
 
class Nameable {
public:
    virtual ~Nameable() {}
 
    void set_name(const std::string& name) {
        name_ = name;
    }
 
    const std::string& name() const {
        return name_;
    }
 
    bool has_name() const {
        return !name_.empty();
    }
 
private:
    std::string name_;
};
 
template<typename T>
class ChainNameable:
    public virtual Nameable {
 
public:
    T* set_name_and_get(const std::string& name) {
        set_name(name);
        return dynamic_cast<T*>(this);
    }
};
 
}