(&mut self, iter: T)
| 251 | { |
| 252 | #[inline] |
| 253 | fn extend<T: IntoIterator<Item = Option<V>>>(&mut self, iter: T) { |
| 254 | for v in iter { |
| 255 | match v { |
| 256 | Some(elements) => { |
| 257 | self.values_builder.extend(elements); |
| 258 | self.append(true); |
| 259 | } |
| 260 | None => self.append(false), |
| 261 | } |
| 262 | } |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | #[cfg(test)] |