{"action":"opened","issue":{"url":"https://api.github.com/repos/musictheory/oj/issues/100","repository_url":"https://api.github.com/repos/musictheory/oj","labels_url":"https://api.github.com/repos/musictheory/oj/issues/100/labels{/name}","comments_url":"https://api.github.com/repos/musictheory/oj/issues/100/comments","events_url":"https://api.github.com/repos/musictheory/oj/issues/100/events","html_url":"https://github.com/musictheory/oj/issues/100","id":137753778,"number":100,"title":"\"Unused instance variable\" text / false positive","user":{"login":"iccir","id":1097294,"avatar_url":"https://avatars.githubusercontent.com/u/1097294?v=3","gravatar_id":"","url":"https://api.github.com/users/iccir","html_url":"https://github.com/iccir","followers_url":"https://api.github.com/users/iccir/followers","following_url":"https://api.github.com/users/iccir/following{/other_user}","gists_url":"https://api.github.com/users/iccir/gists{/gist_id}","starred_url":"https://api.github.com/users/iccir/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/iccir/subscriptions","organizations_url":"https://api.github.com/users/iccir/orgs","repos_url":"https://api.github.com/users/iccir/repos","events_url":"https://api.github.com/users/iccir/events{/privacy}","received_events_url":"https://api.github.com/users/iccir/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-03-02T02:41:14Z","updated_at":"2016-03-02T02:41:14Z","closed_at":null,"body":"The following code gives a \"Unused instance variable\" warning.  The instance variable *is* used, but it's never assigned and hence will always be nil.\r\n\r\nPerhaps instead the warning should be \"Instance variable _bar never assigned\".\r\n\r\n```\r\n@implementation Foo {\r\n    id _bar;\r\n}\r\n\r\n- (void) doSomethingWithBar\r\n{\r\n    [_bar doSomething];\r\n}\r\n@end\r\n```\r\n"}}