rust/tests/ui/needless_pass_by_value.stderr

error: this argument is passed by value, but not consumed in the function body
  --> $DIR/needless_pass_by_value.rs:12:23
   |
12 | fn foo<T: Default>(v: Vec<T>, w: Vec<T>, mut x: Vec<T>, y: Vec<T>) -> Vec<T> {
   |                       ^^^^^^ help: consider changing the type to: `&[T]`
   |
   = note: `-D needless-pass-by-value` implied by `-D warnings`

error: this argument is passed by value, but not consumed in the function body
  --> $DIR/needless_pass_by_value.rs:26:11
   |
26 | fn bar(x: String, y: Wrapper) {
   |           ^^^^^^ help: consider changing the type to: `&str`

error: this argument is passed by value, but not consumed in the function body
  --> $DIR/needless_pass_by_value.rs:26:22
   |
26 | fn bar(x: String, y: Wrapper) {
   |                      ^^^^^^^ help: consider taking a reference instead: `&Wrapper`

error: this argument is passed by value, but not consumed in the function body
  --> $DIR/needless_pass_by_value.rs:32:71
   |
32 | fn test_borrow_trait<T: Borrow<str>, U: AsRef<str>, V>(t: T, u: U, v: V) {
   |                                                                       ^ help: consider taking a reference instead: `&V`

error: this argument is passed by value, but not consumed in the function body
  --> $DIR/needless_pass_by_value.rs:44:18
   |
44 | fn test_match(x: Option<Option<String>>, y: Option<Option<String>>) {
   |                  ^^^^^^^^^^^^^^^^^^^^^^
   |
help: consider taking a reference instead
   |
44 | fn test_match(x: &Option<Option<String>>, y: Option<Option<String>>) {
45 |     match *x {
   |

error: this argument is passed by value, but not consumed in the function body
  --> $DIR/needless_pass_by_value.rs:57:24
   |
57 | fn test_destructure(x: Wrapper, y: Wrapper, z: Wrapper) {
   |                        ^^^^^^^ help: consider taking a reference instead: `&Wrapper`

error: this argument is passed by value, but not consumed in the function body
  --> $DIR/needless_pass_by_value.rs:57:36
   |
57 | fn test_destructure(x: Wrapper, y: Wrapper, z: Wrapper) {
   |                                    ^^^^^^^
   |
help: consider taking a reference instead
   |
57 | fn test_destructure(x: Wrapper, y: &Wrapper, z: Wrapper) {
58 |     let Wrapper(s) = z; // moved
59 |     let Wrapper(ref t) = *y; // not moved
60 |     let Wrapper(_) = *y; // still not moved
   |

error: this argument is passed by value, but not consumed in the function body
  --> $DIR/needless_pass_by_value.rs:73:49
   |
73 | fn test_blanket_ref<T: Foo, S: Serialize>(_foo: T, _serializable: S) {}
   |                                                 ^ help: consider taking a reference instead: `&T`

error: this argument is passed by value, but not consumed in the function body
  --> $DIR/needless_pass_by_value.rs:75:18
   |
75 | fn issue_2114(s: String, t: String, u: Vec<i32>, v: Vec<i32>) {
   |                  ^^^^^^ help: consider taking a reference instead: `&String`

error: this argument is passed by value, but not consumed in the function body
  --> $DIR/needless_pass_by_value.rs:75:29
   |
75 | fn issue_2114(s: String, t: String, u: Vec<i32>, v: Vec<i32>) {
   |                             ^^^^^^
   |
help: consider changing the type to
   |
75 | fn issue_2114(s: String, t: &str, u: Vec<i32>, v: Vec<i32>) {
   |                             ^^^^
help: change `t.clone()` to
   |
77 |     let _ = t.to_string();
   |             ^^^^^^^^^^^^^

error: this argument is passed by value, but not consumed in the function body
  --> $DIR/needless_pass_by_value.rs:75:40
   |
75 | fn issue_2114(s: String, t: String, u: Vec<i32>, v: Vec<i32>) {
   |                                        ^^^^^^^^ help: consider taking a reference instead: `&Vec<i32>`

error: this argument is passed by value, but not consumed in the function body
  --> $DIR/needless_pass_by_value.rs:75:53
   |
75 | fn issue_2114(s: String, t: String, u: Vec<i32>, v: Vec<i32>) {
   |                                                     ^^^^^^^^
   |
help: consider changing the type to
   |
75 | fn issue_2114(s: String, t: String, u: Vec<i32>, v: &[i32]) {
   |                                                     ^^^^^^
help: change `v.clone()` to
   |
79 |     let _ = v.to_owned();
   |             ^^^^^^^^^^^^