rust/tests/ui/needless_collect.stderr
2019-01-08 21:46:39 +01:00

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