56 lines
1.6 KiB
Rust
56 lines
1.6 KiB
Rust
//@run-rustfix
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#![warn(clippy::iter_overeager_cloned, clippy::redundant_clone, clippy::filter_next)]
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#![allow(dead_code, clippy::let_unit_value, clippy::useless_vec)]
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fn main() {
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let vec = vec!["1".to_string(), "2".to_string(), "3".to_string()];
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let _: Option<String> = vec.iter().last().cloned();
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let _: Option<String> = vec.iter().chain(vec.iter()).next().cloned();
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let _: usize = vec.iter().filter(|x| x == &"2").count();
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let _: Vec<_> = vec.iter().take(2).cloned().collect();
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let _: Vec<_> = vec.iter().skip(2).cloned().collect();
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let _ = vec.iter().filter(|x| x == &"2").nth(2).cloned();
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let _ = [Some(Some("str".to_string())), Some(Some("str".to_string()))]
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.iter()
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.flatten().cloned();
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// Not implemented yet
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let _ = vec.iter().cloned().filter(|x| x.starts_with('2'));
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// Not implemented yet
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let _ = vec.iter().cloned().map(|x| x.len());
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// This would fail if changed.
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let _ = vec.iter().cloned().map(|x| x + "2");
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// Not implemented yet
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let _ = vec.iter().cloned().find(|x| x == "2");
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// Not implemented yet
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let _ = vec.iter().cloned().for_each(|x| assert!(!x.is_empty()));
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// Not implemented yet
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let _ = vec.iter().cloned().all(|x| x.len() == 1);
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// Not implemented yet
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let _ = vec.iter().cloned().any(|x| x.len() == 1);
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// Should probably stay as it is.
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let _ = [0, 1, 2, 3, 4].iter().cloned().take(10);
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// `&Range<_>` doesn't implement `IntoIterator`
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let _ = [0..1, 2..5].iter().cloned().flatten();
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}
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// #8527
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fn cloned_flatten(x: Option<&Option<String>>) -> Option<String> {
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x.cloned().flatten()
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}
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