mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-24 07:44:10 +00:00
36 lines
1.4 KiB
Plaintext
36 lines
1.4 KiB
Plaintext
error: using `.clone()` on a double reference, which returns `&Vec<i32>` instead of cloning the inner type
|
|
--> $DIR/suspicious-double-ref-op.rs:7:23
|
|
|
|
|
LL | let z: &Vec<_> = y.clone();
|
|
| ^^^^^^^^
|
|
|
|
|
note: the lint level is defined here
|
|
--> $DIR/suspicious-double-ref-op.rs:2:9
|
|
|
|
|
LL | #![deny(suspicious_double_ref_op, noop_method_call)]
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: call to `.clone()` on a reference in this situation does nothing
|
|
--> $DIR/suspicious-double-ref-op.rs:24:25
|
|
|
|
|
LL | let _ = &mut encoded.clone();
|
|
| ^^^^^^^^ unnecessary method call
|
|
|
|
|
= note: the type `&[u8]` which `clone` is being called on is the same as the type returned from `clone`, so the method call does not do anything and can be removed
|
|
note: the lint level is defined here
|
|
--> $DIR/suspicious-double-ref-op.rs:2:35
|
|
|
|
|
LL | #![deny(suspicious_double_ref_op, noop_method_call)]
|
|
| ^^^^^^^^^^^^^^^^
|
|
|
|
error: call to `.clone()` on a reference in this situation does nothing
|
|
--> $DIR/suspicious-double-ref-op.rs:26:21
|
|
|
|
|
LL | let _ = &encoded.clone();
|
|
| ^^^^^^^^ unnecessary method call
|
|
|
|
|
= note: the type `&[u8]` which `clone` is being called on is the same as the type returned from `clone`, so the method call does not do anything and can be removed
|
|
|
|
error: aborting due to 3 previous errors
|
|
|