Function Visit

common/internal/byte_string.h:331–340

  template <typename Visitor>
  decltype(auto) Visit(Visitor&& visitor) const {
    switch (GetKind()) {
      case ByteStringKind::kSmall:
        return std::forward<Visitor>(visitor)(GetSmall());
      case ByteStringKind::kMedium:
        return std::forward<Visitor>(visitor)(GetMedium());
      case ByteStringKind::kLarge:
        return std::forward<Visitor>(visitor)(GetLarge());
    }
  }

  friend void swap(ByteString& lhs, ByteString& rhs) {
    if (&lhs != &rhs) {