rspec/rules/S1996/swift/rule.adoc

A file that grows too much tends to aggregate too many responsibilities and inevitably becomes harder to understand and therefore to maintain. This is doubly true for a file with multiple independent classes, extensions, protocols, enumerations or structures. It is strongly advised to define each individual type in separate source file.

== Exceptions

The case when file contains only class and its extensions is ignored.

----
class MyViewController: UIViewController {
  // class stuff here
}

extension MyViewController: UITableViewDataSource {
  // table view data source methods
}

extension MyViewController: UIScrollViewDelegate {
  // scroll view delegate methods
}
----