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Diffstat (limited to '')
| -rw-r--r-- | src/tools/clippy/tests/ui/unnecessary_clone.stderr | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/unnecessary_clone.stderr b/src/tools/clippy/tests/ui/unnecessary_clone.stderr new file mode 100644 index 000000000..94cc7777a --- /dev/null +++ b/src/tools/clippy/tests/ui/unnecessary_clone.stderr @@ -0,0 +1,106 @@ +error: using `.clone()` on a ref-counted pointer + --> $DIR/unnecessary_clone.rs:23:5 + | +LL | 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:26:5 + | +LL | arc.clone(); + | ^^^^^^^^^^^ help: try this: `Arc::<bool>::clone(&arc)` + +error: using `.clone()` on a ref-counted pointer + --> $DIR/unnecessary_clone.rs:29:5 + | +LL | rcweak.clone(); + | ^^^^^^^^^^^^^^ help: try this: `Weak::<bool>::clone(&rcweak)` + +error: using `.clone()` on a ref-counted pointer + --> $DIR/unnecessary_clone.rs:32:5 + | +LL | arc_weak.clone(); + | ^^^^^^^^^^^^^^^^ help: try this: `Weak::<bool>::clone(&arc_weak)` + +error: using `.clone()` on a ref-counted pointer + --> $DIR/unnecessary_clone.rs:36:33 + | +LL | let _: Arc<dyn SomeTrait> = x.clone(); + | ^^^^^^^^^ help: try this: `Arc::<SomeImpl>::clone(&x)` + +error: using `clone` on type `T` which implements the `Copy` trait + --> $DIR/unnecessary_clone.rs:40:5 + | +LL | t.clone(); + | ^^^^^^^^^ help: try removing the `clone` call: `t` + | + = note: `-D clippy::clone-on-copy` implied by `-D warnings` + +error: using `clone` on type `std::option::Option<T>` which implements the `Copy` trait + --> $DIR/unnecessary_clone.rs:42:5 + | +LL | Some(t).clone(); + | ^^^^^^^^^^^^^^^ help: try removing the `clone` call: `Some(t)` + +error: using `clone` on a double-reference; this will copy the reference of type `&std::vec::Vec<i32>` instead of cloning the inner type + --> $DIR/unnecessary_clone.rs:48:22 + | +LL | let z: &Vec<_> = y.clone(); + | ^^^^^^^^^ + | + = note: `#[deny(clippy::clone_double_ref)]` on by default +help: try dereferencing it + | +LL | let z: &Vec<_> = &(*y).clone(); + | ~~~~~~~~~~~~~ +help: or try being explicit if you are sure, that you want to clone a reference + | +LL | let z: &Vec<_> = <&std::vec::Vec<i32>>::clone(y); + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +error: using `clone` on type `many_derefs::E` which implements the `Copy` trait + --> $DIR/unnecessary_clone.rs:84:20 + | +LL | let _: E = a.clone(); + | ^^^^^^^^^ help: try dereferencing it: `*****a` + +error: using `clone` on a double-reference; this will copy the reference of type `&[u8]` instead of cloning the inner type + --> $DIR/unnecessary_clone.rs:89:22 + | +LL | let _ = &mut encoded.clone(); + | ^^^^^^^^^^^^^^^ + | +help: try dereferencing it + | +LL | let _ = &mut &(*encoded).clone(); + | ~~~~~~~~~~~~~~~~~~~ +help: or try being explicit if you are sure, that you want to clone a reference + | +LL | let _ = &mut <&[u8]>::clone(encoded); + | ~~~~~~~~~~~~~~~~~~~~~~~ + +error: using `clone` on a double-reference; this will copy the reference of type `&[u8]` instead of cloning the inner type + --> $DIR/unnecessary_clone.rs:90:18 + | +LL | let _ = &encoded.clone(); + | ^^^^^^^^^^^^^^^ + | +help: try dereferencing it + | +LL | let _ = &&(*encoded).clone(); + | ~~~~~~~~~~~~~~~~~~~ +help: or try being explicit if you are sure, that you want to clone a reference + | +LL | let _ = &<&[u8]>::clone(encoded); + | ~~~~~~~~~~~~~~~~~~~~~~~ + +error: using `.clone()` on a ref-counted pointer + --> $DIR/unnecessary_clone.rs:108:14 + | +LL | Some(try_opt!(Some(rc)).clone()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `Rc::<u8>::clone(&try_opt!(Some(rc)))` + +error: aborting due to 12 previous errors + |