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https://github.com/rust-lang/rust-clippy
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28 lines
1.1 KiB
Text
28 lines
1.1 KiB
Text
error: avoid using `collect()` when not needed
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--> $DIR/needless_collect.rs:7:28
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LL | let len = sample.iter().collect::<Vec<_>>().len();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `.count()`
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= note: `-D clippy::needless-collect` implied by `-D warnings`
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error: avoid using `collect()` when not needed
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--> $DIR/needless_collect.rs:8:21
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LL | if sample.iter().collect::<Vec<_>>().is_empty() {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `.next().is_none()`
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error: avoid using `collect()` when not needed
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--> $DIR/needless_collect.rs:11:27
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LL | sample.iter().cloned().collect::<Vec<_>>().contains(&1);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `.any(|&x| x == 1)`
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error: avoid using `collect()` when not needed
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--> $DIR/needless_collect.rs:12:34
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LL | sample.iter().map(|x| (x, x)).collect::<HashMap<_, _>>().len();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `.count()`
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error: aborting due to 4 previous errors
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