2 #![warn(clippy::iter_overeager_cloned, clippy::redundant_clone, clippy::filter_next)]
5 let vec = vec!["1".to_string(), "2".to_string(), "3".to_string()];
7 let _: Option<String> = vec.iter().last().cloned();
9 let _: Option<String> = vec.iter().chain(vec.iter()).next().cloned();
11 let _: usize = vec.iter().filter(|x| x == &"2").count();
13 let _: Vec<_> = vec.iter().take(2).cloned().collect();
15 let _: Vec<_> = vec.iter().skip(2).cloned().collect();
17 let _ = vec.iter().filter(|x| x == &"2").nth(2).cloned();
19 let _ = [Some(Some("str".to_string())), Some(Some("str".to_string()))]
20 .iter().flatten().cloned();
22 // Not implemented yet
23 let _ = vec.iter().cloned().filter(|x| x.starts_with('2'));
25 // Not implemented yet
26 let _ = vec.iter().cloned().map(|x| x.len());
28 // This would fail if changed.
29 let _ = vec.iter().cloned().map(|x| x + "2");
31 // Not implemented yet
32 let _ = vec.iter().cloned().find(|x| x == "2");
34 // Not implemented yet
35 let _ = vec.iter().cloned().for_each(|x| assert!(!x.is_empty()));
37 // Not implemented yet
38 let _ = vec.iter().cloned().all(|x| x.len() == 1);
40 // Not implemented yet
41 let _ = vec.iter().cloned().any(|x| x.len() == 1);
43 // Should probably stay as it is.
44 let _ = [0, 1, 2, 3, 4].iter().cloned().take(10);