(&mut self)
| 243 | type Item = Vec<Value>; |
| 244 | |
| 245 | fn next(&mut self) -> Option<Self::Item> { |
| 246 | if self.current >= self.row_count { |
| 247 | return None; |
| 248 | } |
| 249 | let mut row = Vec::with_capacity(self.columns.len()); |
| 250 | for col in self.columns { |
| 251 | row.push(col.get_value(self.current)); |
| 252 | } |
| 253 | self.current += 1; |
| 254 | Some(row) |
| 255 | } |
| 256 | |
| 257 | fn size_hint(&self) -> (usize, Option<usize>) { |
| 258 | let remaining = self.row_count - self.current; |