rust/tests/ui/needless_collect.stderr
Josh Holmer 48e6be42d7 Rustup
2018-09-03 23:50:24 -04:00

29 lines
1.1 KiB
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error: avoid using `collect()` when not needed
--> $DIR/needless_collect.rs:9:28
|
9 | 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:10:21
|
10 | if sample.iter().collect::<Vec<_>>().is_empty() {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `.next().is_none()`
error: avoid using `collect()` when not needed
--> $DIR/needless_collect.rs:13:27
|
13 | 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:14:34
|
14 | sample.iter().map(|x| (x, x)).collect::<HashMap<_, _>>().len();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `.count()`
error: aborting due to 4 previous errors