| 4264 | return m_cache; |
| 4265 | } |
| 4266 | bool next() override { |
| 4267 | const auto success = m_generator.next(); |
| 4268 | if (success) { |
| 4269 | m_cache = m_function(m_generator.get()); |
| 4270 | } |
| 4271 | return success; |
| 4272 | } |
| 4273 | }; |
| 4274 | |
| 4275 | template <typename Func, typename U, typename T = FunctionReturnType<Func, U>> |