rust/tests/ui/needless_collect.stderr
2020-08-02 21:34:17 -07:00

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error: avoid using `collect()` when not needed
--> $DIR/needless_collect.rs:21:5
|
LL | let indirect_positive = sample.iter().collect::<Vec<_>>();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `-D clippy::needless-collect` implied by `-D warnings`
help: Use the original Iterator instead of collecting it and then producing a new one
|
LL |
LL | sample.iter()
|
error: avoid using `collect()` when not needed
--> $DIR/needless_collect.rs:11:29
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LL | let len = sample.iter().collect::<Vec<_>>().len();
| ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `count()`
error: avoid using `collect()` when not needed
--> $DIR/needless_collect.rs:12:15
|
LL | if sample.iter().collect::<Vec<_>>().is_empty() {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `get(0).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:16:35
|
LL | sample.iter().map(|x| (x, x)).collect::<HashMap<_, _>>().len();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `count()`
error: aborting due to 5 previous errors