{"action":"created","issue":{"url":"https://api.github.com/repos/crystal-lang/crystal/issues/3133","repository_url":"https://api.github.com/repos/crystal-lang/crystal","labels_url":"https://api.github.com/repos/crystal-lang/crystal/issues/3133/labels{/name}","comments_url":"https://api.github.com/repos/crystal-lang/crystal/issues/3133/comments","events_url":"https://api.github.com/repos/crystal-lang/crystal/issues/3133/events","html_url":"https://github.com/crystal-lang/crystal/issues/3133","id":170457180,"number":3133,"title":"Instance var loses its type in generic abstract inheritance","user":{"login":"Exilor","id":5578107,"avatar_url":"https://avatars.githubusercontent.com/u/5578107?v=3","gravatar_id":"","url":"https://api.github.com/users/Exilor","html_url":"https://github.com/Exilor","followers_url":"https://api.github.com/users/Exilor/followers","following_url":"https://api.github.com/users/Exilor/following{/other_user}","gists_url":"https://api.github.com/users/Exilor/gists{/gist_id}","starred_url":"https://api.github.com/users/Exilor/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Exilor/subscriptions","organizations_url":"https://api.github.com/users/Exilor/orgs","repos_url":"https://api.github.com/users/Exilor/repos","events_url":"https://api.github.com/users/Exilor/events{/privacy}","received_events_url":"https://api.github.com/users/Exilor/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2016-08-10T16:13:03Z","updated_at":"2016-08-10T17:00:25Z","closed_at":"2016-08-10T17:00:25Z","body":"[abstract -> abstract -> concrete](https://play.crystal-lang.org/#/r/16sk) works\r\n[abstract(T) -> abstract(T) -> concrete(T)](https://play.crystal-lang.org/#/r/16sp) works\r\n[abstract -> abstract -> concrete(T)](https://play.crystal-lang.org/#/r/16sm) works\r\n[abstract -> abstract(T) -> concrete(T)](https://play.crystal-lang.org/#/r/16sl) fails\r\nIn the examples I used structs but the same happens with classes.\r\nIs this by design?"},"comment":{"url":"https://api.github.com/repos/crystal-lang/crystal/issues/comments/238932424","html_url":"https://github.com/crystal-lang/crystal/issues/3133#issuecomment-238932424","issue_url":"https://api.github.com/repos/crystal-lang/crystal/issues/3133","id":238932424,"user":{"login":"asterite","id":209371,"avatar_url":"https://avatars.githubusercontent.com/u/209371?v=3","gravatar_id":"","url":"https://api.github.com/users/asterite","html_url":"https://github.com/asterite","followers_url":"https://api.github.com/users/asterite/followers","following_url":"https://api.github.com/users/asterite/following{/other_user}","gists_url":"https://api.github.com/users/asterite/gists{/gist_id}","starred_url":"https://api.github.com/users/asterite/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/asterite/subscriptions","organizations_url":"https://api.github.com/users/asterite/orgs","repos_url":"https://api.github.com/users/asterite/repos","events_url":"https://api.github.com/users/asterite/events{/privacy}","received_events_url":"https://api.github.com/users/asterite/received_events","type":"User","site_admin":false},"created_at":"2016-08-10T17:00:25Z","updated_at":"2016-08-10T17:00:25Z","body":"Duplicate of https://github.com/crystal-lang/crystal/issues/2665\r\n\r\nGeneric inheritance is currently broken. I'm working on it :-)"}}
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