rust-clippy/tests/ui/needless_collect.stderr
Mateusz Gacek 171789eb45 needless_collect: Lint LinkedList and BinaryHeap in direct usage.
Those two types are supported already when used indirectly.
This commit adds support for direct usage as well.
2021-05-07 09:00:51 -07:00

70 lines
2.9 KiB
Text

error: avoid using `collect()` when not needed
--> $DIR/needless_collect.rs:11:29
|
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:12:22
|
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:15:28
|
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:20:35
|
LL | sample.iter().map(|x| (x, x)).collect::<HashMap<_, _>>().is_empty();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `next().is_none()`
error: avoid using `collect()` when not needed
--> $DIR/needless_collect.rs:21:35
|
LL | sample.iter().map(|x| (x, x)).collect::<BTreeMap<_, _>>().is_empty();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `next().is_none()`
error: avoid using `collect()` when not needed
--> $DIR/needless_collect.rs:28:19
|
LL | sample.iter().collect::<LinkedList<_>>().len();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `count()`
error: avoid using `collect()` when not needed
--> $DIR/needless_collect.rs:29:19
|
LL | sample.iter().collect::<LinkedList<_>>().is_empty();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `next().is_none()`
error: avoid using `collect()` when not needed
--> $DIR/needless_collect.rs:30:28
|
LL | sample.iter().cloned().collect::<LinkedList<_>>().contains(&1);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `any(|x| x == 1)`
error: avoid using `collect()` when not needed
--> $DIR/needless_collect.rs:31:19
|
LL | sample.iter().collect::<LinkedList<_>>().contains(&&1);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `any(|x| x == &1)`
error: avoid using `collect()` when not needed
--> $DIR/needless_collect.rs:34:19
|
LL | sample.iter().collect::<BinaryHeap<_>>().len();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `count()`
error: avoid using `collect()` when not needed
--> $DIR/needless_collect.rs:35:19
|
LL | sample.iter().collect::<BinaryHeap<_>>().is_empty();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `next().is_none()`
error: aborting due to 11 previous errors