rust/tests/ui/unnecessary_clone.stderr
2018-10-06 09:43:08 -07:00

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error: using `clone` on a `Copy` type
--> $DIR/unnecessary_clone.rs:28:5
|
28 | 42.clone();
| ^^^^^^^^^^ help: try removing the `clone` call: `42`
|
= note: `-D clippy::clone-on-copy` implied by `-D warnings`
error: using `clone` on a `Copy` type
--> $DIR/unnecessary_clone.rs:32:5
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32 | (&42).clone();
| ^^^^^^^^^^^^^ help: try dereferencing it: `*(&42)`
error: using '.clone()' on a ref-counted pointer
--> $DIR/unnecessary_clone.rs:42:5
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42 | rc.clone();
| ^^^^^^^^^^ help: try this: `Rc::<bool>::clone(&rc)`
|
= note: `-D clippy::clone-on-ref-ptr` implied by `-D warnings`
error: using '.clone()' on a ref-counted pointer
--> $DIR/unnecessary_clone.rs:45:5
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45 | arc.clone();
| ^^^^^^^^^^^ help: try this: `Arc::<bool>::clone(&arc)`
error: using '.clone()' on a ref-counted pointer
--> $DIR/unnecessary_clone.rs:48:5
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48 | rcweak.clone();
| ^^^^^^^^^^^^^^ help: try this: `Weak::<bool>::clone(&rcweak)`
error: using '.clone()' on a ref-counted pointer
--> $DIR/unnecessary_clone.rs:51:5
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51 | arc_weak.clone();
| ^^^^^^^^^^^^^^^^ help: try this: `Weak::<bool>::clone(&arc_weak)`
error: using '.clone()' on a ref-counted pointer
--> $DIR/unnecessary_clone.rs:55:29
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55 | let _: Arc<SomeTrait> = x.clone();
| ^^^^^^^^^ help: try this: `Arc::<SomeImpl>::clone(&x)`
error: using `clone` on a `Copy` type
--> $DIR/unnecessary_clone.rs:59:5
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59 | t.clone();
| ^^^^^^^^^ help: try removing the `clone` call: `t`
error: using `clone` on a `Copy` type
--> $DIR/unnecessary_clone.rs:61:5
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61 | Some(t).clone();
| ^^^^^^^^^^^^^^^ help: try removing the `clone` call: `Some(t)`
error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
--> $DIR/unnecessary_clone.rs:67:22
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67 | let z: &Vec<_> = y.clone();
| ^^^^^^^^^
|
= note: #[deny(clippy::clone_double_ref)] on by default
help: try dereferencing it
|
67 | let z: &Vec<_> = &(*y).clone();
| ^^^^^^^^^^^^^
help: or try being explicit about what type to clone
|
67 | let z: &Vec<_> = &std::vec::Vec<i32>::clone(y);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: called `cloned().collect()` on a slice to create a `Vec`. Calling `to_vec()` is both faster and more readable
--> $DIR/unnecessary_clone.rs:74:27
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74 | let v2 : Vec<isize> = v.iter().cloned().collect();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `-D clippy::iter-cloned-collect` implied by `-D warnings`
error: aborting due to 11 previous errors