{"action":"closed","issue":{"url":"https://api.github.com/repos/realm/realm-cocoa/issues/2523","labels_url":"https://api.github.com/repos/realm/realm-cocoa/issues/2523/labels{/name}","comments_url":"https://api.github.com/repos/realm/realm-cocoa/issues/2523/comments","events_url":"https://api.github.com/repos/realm/realm-cocoa/issues/2523/events","html_url":"https://github.com/realm/realm-cocoa/issues/2523","id":106128029,"number":2523,"title":"Rational behind marking classes `final` in swift?","user":{"login":"angerman","id":40449,"avatar_url":"https://avatars.githubusercontent.com/u/40449?v=3","gravatar_id":"","url":"https://api.github.com/users/angerman","html_url":"https://github.com/angerman","followers_url":"https://api.github.com/users/angerman/followers","following_url":"https://api.github.com/users/angerman/following{/other_user}","gists_url":"https://api.github.com/users/angerman/gists{/gist_id}","starred_url":"https://api.github.com/users/angerman/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/angerman/subscriptions","organizations_url":"https://api.github.com/users/angerman/orgs","repos_url":"https://api.github.com/users/angerman/repos","events_url":"https://api.github.com/users/angerman/events{/privacy}","received_events_url":"https://api.github.com/users/angerman/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/realm/realm-cocoa/labels/pending","name":"pending","color":"ededed"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-09-12T04:17:22Z","updated_at":"2015-09-14T06:43:06Z","closed_at":"2015-09-14T06:43:06Z","body":"I've run into this a few times, trying to derive from classes like `Result`, but inevitably being denied, by `Results` being declared `final`.\r\n\r\nWhat's the rational behind declaring all those classes final?"}}