mirror of
https://github.com/rust-lang/rust-clippy
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70 lines
2.7 KiB
Text
70 lines
2.7 KiB
Text
error: unnecessarily eager cloning of iterator items
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--> $DIR/iter_overeager_cloned.rs:8:29
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LL | let _: Option<String> = vec.iter().cloned().last();
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| ^^^^^^^^^^----------------
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| help: try this: `.last().cloned()`
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= note: `-D clippy::iter-overeager-cloned` implied by `-D warnings`
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error: unnecessarily eager cloning of iterator items
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--> $DIR/iter_overeager_cloned.rs:10:29
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LL | let _: Option<String> = vec.iter().chain(vec.iter()).cloned().next();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------------
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| help: try this: `.next().cloned()`
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error: unneeded cloning of iterator items
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--> $DIR/iter_overeager_cloned.rs:12:20
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LL | let _: usize = vec.iter().filter(|x| x == &"2").cloned().count();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-----------------
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| help: try this: `.count()`
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= note: `-D clippy::redundant-clone` implied by `-D warnings`
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error: unnecessarily eager cloning of iterator items
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--> $DIR/iter_overeager_cloned.rs:14:21
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LL | let _: Vec<_> = vec.iter().cloned().take(2).collect();
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| ^^^^^^^^^^-----------------
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| help: try this: `.take(2).cloned()`
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error: unnecessarily eager cloning of iterator items
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--> $DIR/iter_overeager_cloned.rs:16:21
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LL | let _: Vec<_> = vec.iter().cloned().skip(2).collect();
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| ^^^^^^^^^^-----------------
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| help: try this: `.skip(2).cloned()`
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error: unnecessarily eager cloning of iterator items
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--> $DIR/iter_overeager_cloned.rs:18:13
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LL | let _ = vec.iter().filter(|x| x == &"2").cloned().nth(2);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------------
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| help: try this: `.nth(2).cloned()`
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error: unnecessarily eager cloning of iterator items
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--> $DIR/iter_overeager_cloned.rs:20:13
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LL | let _ = [Some(Some("str".to_string())), Some(Some("str".to_string()))]
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| _____________^
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LL | | .iter()
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LL | | .cloned()
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LL | | .flatten();
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| |__________________^
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help: try this
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LL ~ .iter()
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LL ~ .flatten().cloned();
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error: aborting due to 7 previous errors
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