Expanded class hierarchy of DiffOp in Drupal 9
- class \Drupal\Component\Diff\Engine\DiffOp
- class \Drupal\Component\Diff\Engine\DiffOpAdd
- class \Drupal\Component\Diff\Engine\DiffOpChange
- class \Drupal\Component\Diff\Engine\DiffOpCopy
- class \Drupal\Component\Diff\Engine\DiffOpDelete