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https://github.com/rust-lang/rust-clippy
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73 lines
2.6 KiB
Text
73 lines
2.6 KiB
Text
error: avoid using `collect()` when not needed
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--> $DIR/needless_collect_indirect.rs:5:39
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LL | let indirect_iter = sample.iter().collect::<Vec<_>>();
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| ^^^^^^^
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LL | indirect_iter.into_iter().map(|x| (x, x + 1)).collect::<HashMap<_, _>>();
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| ------------------------- the iterator could be used here instead
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= note: `-D clippy::needless-collect` implied by `-D warnings`
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help: use the original Iterator instead of collecting it and then producing a new one
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LL |
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LL | sample.iter().map(|x| (x, x + 1)).collect::<HashMap<_, _>>();
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error: avoid using `collect()` when not needed
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--> $DIR/needless_collect_indirect.rs:7:38
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LL | let indirect_len = sample.iter().collect::<VecDeque<_>>();
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| ^^^^^^^
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LL | indirect_len.len();
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| ------------------ the iterator could be used here instead
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help: take the original Iterator's count instead of collecting it and finding the length
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LL |
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LL | sample.iter().count();
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error: avoid using `collect()` when not needed
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--> $DIR/needless_collect_indirect.rs:9:40
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LL | let indirect_empty = sample.iter().collect::<VecDeque<_>>();
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| ^^^^^^^
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LL | indirect_empty.is_empty();
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| ------------------------- the iterator could be used here instead
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help: check if the original Iterator has anything instead of collecting it and seeing if it's empty
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LL |
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LL | sample.iter().next().is_none();
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error: avoid using `collect()` when not needed
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--> $DIR/needless_collect_indirect.rs:11:43
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LL | let indirect_contains = sample.iter().collect::<VecDeque<_>>();
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| ^^^^^^^
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LL | indirect_contains.contains(&&5);
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| ------------------------------- the iterator could be used here instead
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help: check if the original Iterator contains an element instead of collecting then checking
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LL |
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LL | sample.iter().any(|x| x == &5);
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error: avoid using `collect()` when not needed
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--> $DIR/needless_collect_indirect.rs:23:48
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LL | let non_copy_contains = sample.into_iter().collect::<Vec<_>>();
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| ^^^^^^^
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LL | non_copy_contains.contains(&a);
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| ------------------------------ the iterator could be used here instead
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help: check if the original Iterator contains an element instead of collecting then checking
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LL |
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LL | sample.into_iter().any(|x| x == a);
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error: aborting due to 5 previous errors
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