mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-15 18:15:01 +00:00
29 lines
1.1 KiB
Plaintext
29 lines
1.1 KiB
Plaintext
error: avoid using `collect()` when not needed
|
|
--> $DIR/needless_collect.rs:16:28
|
|
|
|
|
16 | 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:17:21
|
|
|
|
|
17 | if sample.iter().collect::<Vec<_>>().is_empty() {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `.next().is_none()`
|
|
|
|
error: avoid using `collect()` when not needed
|
|
--> $DIR/needless_collect.rs:20:27
|
|
|
|
|
20 | 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:21:34
|
|
|
|
|
21 | sample.iter().map(|x| (x, x)).collect::<HashMap<_, _>>().len();
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `.count()`
|
|
|
|
error: aborting due to 4 previous errors
|
|
|