Find why calls through Decoder& do not use JsonDecoder.
C++
#include <string>
#include <string_view>
class Decoder {
public:
virtual std::string decode(std::string_view input) const {
return std::string(input);
}
virtual ~Decoder() = default;
};
class JsonDecoder final : public Decoder {
public:
std::string decode(std::string_view input) {
return "json:" + std::string(input);
}
};