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#ifndef WANDA_OPTIONAL_HPP
#define WANDA_OPTIONAL_HPP
#include <optional>
namespace wanda::std_ext {
struct failable {
constexpr static auto success() { return failable{false}; }
constexpr static auto failure() { return failable{true}; }
template<typename Handler>
constexpr auto operator ||(Handler handler) const {
if(m_failed) {
handler();
}
}
private:
constexpr explicit failable(bool failed) : m_failed{failed} { };
bool const m_failed;
};
template<typename ObjectType, typename HandlerType>
auto with(std::optional<ObjectType> && object, HandlerType handler) {
if(object) {
handler(object.value());
return failable::success();
}
return failable::failure();
}
}
#endif
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