src/tools/clippy/tests/ui/needless_pass_by_value.stderr

   1 error: this argument is passed by value, but not consumed in the function body
   2   --> $DIR/needless_pass_by_value.rs:18:23
   3    |
   4 LL | fn foo<T: Default>(v: Vec<T>, w: Vec<T>, mut x: Vec<T>, y: Vec<T>) -> Vec<T> {
   5    |                       ^^^^^^ help: consider changing the type to: `&[T]`
   6    |
   7    = note: `-D clippy::needless-pass-by-value` implied by `-D warnings`
   8
   9 error: this argument is passed by value, but not consumed in the function body
  10   --> $DIR/needless_pass_by_value.rs:32:11
  11    |
  12 LL | fn bar(x: String, y: Wrapper) {
  13    |           ^^^^^^ help: consider changing the type to: `&str`
  14
  15 error: this argument is passed by value, but not consumed in the function body
  16   --> $DIR/needless_pass_by_value.rs:32:22
  17    |
  18 LL | fn bar(x: String, y: Wrapper) {
  19    |                      ^^^^^^^ help: consider taking a reference instead: `&Wrapper`
  20
  21 error: this argument is passed by value, but not consumed in the function body
  22   --> $DIR/needless_pass_by_value.rs:38:71
  23    |
  24 LL | fn test_borrow_trait<T: Borrow<str>, U: AsRef<str>, V>(t: T, u: U, v: V) {
  25    |                                                                       ^ help: consider taking a reference instead: `&V`
  26
  27 error: this argument is passed by value, but not consumed in the function body
  28   --> $DIR/needless_pass_by_value.rs:50:18
  29    |
  30 LL | fn test_match(x: Option<Option<String>>, y: Option<Option<String>>) {
  31    |                  ^^^^^^^^^^^^^^^^^^^^^^ help: consider taking a reference instead: `&Option<Option<String>>`
  32
  33 error: this argument is passed by value, but not consumed in the function body
  34   --> $DIR/needless_pass_by_value.rs:63:24
  35    |
  36 LL | fn test_destructure(x: Wrapper, y: Wrapper, z: Wrapper) {
  37    |                        ^^^^^^^ help: consider taking a reference instead: `&Wrapper`
  38
  39 error: this argument is passed by value, but not consumed in the function body
  40   --> $DIR/needless_pass_by_value.rs:63:36
  41    |
  42 LL | fn test_destructure(x: Wrapper, y: Wrapper, z: Wrapper) {
  43    |                                    ^^^^^^^ help: consider taking a reference instead: `&Wrapper`
  44
  45 error: this argument is passed by value, but not consumed in the function body
  46   --> $DIR/needless_pass_by_value.rs:79:49
  47    |
  48 LL | fn test_blanket_ref<T: Foo, S: Serialize>(_foo: T, _serializable: S) {}
  49    |                                                 ^ help: consider taking a reference instead: `&T`
  50
  51 error: this argument is passed by value, but not consumed in the function body
  52   --> $DIR/needless_pass_by_value.rs:81:18
  53    |
  54 LL | fn issue_2114(s: String, t: String, u: Vec<i32>, v: Vec<i32>) {
  55    |                  ^^^^^^ help: consider taking a reference instead: `&String`
  56
  57 error: this argument is passed by value, but not consumed in the function body
  58   --> $DIR/needless_pass_by_value.rs:81:29
  59    |
  60 LL | fn issue_2114(s: String, t: String, u: Vec<i32>, v: Vec<i32>) {
  61    |                             ^^^^^^
  62    |
  63 help: consider changing the type to
  64    |
  65 LL | fn issue_2114(s: String, t: &str, u: Vec<i32>, v: Vec<i32>) {
  66    |                             ~~~~
  67 help: change `t.clone()` to
  68    |
  69 LL |     let _ = t.to_string();
  70    |             ~~~~~~~~~~~~~
  71
  72 error: this argument is passed by value, but not consumed in the function body
  73   --> $DIR/needless_pass_by_value.rs:81:40
  74    |
  75 LL | fn issue_2114(s: String, t: String, u: Vec<i32>, v: Vec<i32>) {
  76    |                                        ^^^^^^^^ help: consider taking a reference instead: `&Vec<i32>`
  77
  78 error: this argument is passed by value, but not consumed in the function body
  79   --> $DIR/needless_pass_by_value.rs:81:53
  80    |
  81 LL | fn issue_2114(s: String, t: String, u: Vec<i32>, v: Vec<i32>) {
  82    |                                                     ^^^^^^^^
  83    |
  84 help: consider changing the type to
  85    |
  86 LL | fn issue_2114(s: String, t: String, u: Vec<i32>, v: &[i32]) {
  87    |                                                     ~~~~~~
  88 help: change `v.clone()` to
  89    |
  90 LL |     let _ = v.to_owned();
  91    |             ~~~~~~~~~~~~
  92
  93 error: this argument is passed by value, but not consumed in the function body
  94   --> $DIR/needless_pass_by_value.rs:94:12
  95    |
  96 LL |         s: String,
  97    |            ^^^^^^ help: consider changing the type to: `&str`
  98
  99 error: this argument is passed by value, but not consumed in the function body
 100   --> $DIR/needless_pass_by_value.rs:95:12
 101    |
 102 LL |         t: String,
 103    |            ^^^^^^ help: consider taking a reference instead: `&String`
 104
 105 error: this argument is passed by value, but not consumed in the function body
 106   --> $DIR/needless_pass_by_value.rs:104:23
 107    |
 108 LL |     fn baz(&self, _u: U, _s: Self) {}
 109    |                       ^ help: consider taking a reference instead: `&U`
 110
 111 error: this argument is passed by value, but not consumed in the function body
 112   --> $DIR/needless_pass_by_value.rs:104:30
 113    |
 114 LL |     fn baz(&self, _u: U, _s: Self) {}
 115    |                              ^^^^ help: consider taking a reference instead: `&Self`
 116
 117 error: this argument is passed by value, but not consumed in the function body
 118   --> $DIR/needless_pass_by_value.rs:126:24
 119    |
 120 LL | fn bar_copy(x: u32, y: CopyWrapper) {
 121    |                        ^^^^^^^^^^^ help: consider taking a reference instead: `&CopyWrapper`
 122    |
 123 help: consider marking this type as `Copy`
 124   --> $DIR/needless_pass_by_value.rs:124:1
 125    |
 126 LL | struct CopyWrapper(u32);
 127    | ^^^^^^^^^^^^^^^^^^^^^^^^
 128
 129 error: this argument is passed by value, but not consumed in the function body
 130   --> $DIR/needless_pass_by_value.rs:132:29
 131    |
 132 LL | fn test_destructure_copy(x: CopyWrapper, y: CopyWrapper, z: CopyWrapper) {
 133    |                             ^^^^^^^^^^^ help: consider taking a reference instead: `&CopyWrapper`
 134    |
 135 help: consider marking this type as `Copy`
 136   --> $DIR/needless_pass_by_value.rs:124:1
 137    |
 138 LL | struct CopyWrapper(u32);
 139    | ^^^^^^^^^^^^^^^^^^^^^^^^
 140
 141 error: this argument is passed by value, but not consumed in the function body
 142   --> $DIR/needless_pass_by_value.rs:132:45
 143    |
 144 LL | fn test_destructure_copy(x: CopyWrapper, y: CopyWrapper, z: CopyWrapper) {
 145    |                                             ^^^^^^^^^^^ help: consider taking a reference instead: `&CopyWrapper`
 146    |
 147 help: consider marking this type as `Copy`
 148   --> $DIR/needless_pass_by_value.rs:124:1
 149    |
 150 LL | struct CopyWrapper(u32);
 151    | ^^^^^^^^^^^^^^^^^^^^^^^^
 152
 153 error: this argument is passed by value, but not consumed in the function body
 154   --> $DIR/needless_pass_by_value.rs:132:61
 155    |
 156 LL | fn test_destructure_copy(x: CopyWrapper, y: CopyWrapper, z: CopyWrapper) {
 157    |                                                             ^^^^^^^^^^^ help: consider taking a reference instead: `&CopyWrapper`
 158    |
 159 help: consider marking this type as `Copy`
 160   --> $DIR/needless_pass_by_value.rs:124:1
 161    |
 162 LL | struct CopyWrapper(u32);
 163    | ^^^^^^^^^^^^^^^^^^^^^^^^
 164
 165 error: this argument is passed by value, but not consumed in the function body
 166   --> $DIR/needless_pass_by_value.rs:144:40
 167    |
 168 LL | fn some_fun<'b, S: Bar<'b, ()>>(_item: S) {}
 169    |                                        ^ help: consider taking a reference instead: `&S`
 170
 171 error: this argument is passed by value, but not consumed in the function body
 172   --> $DIR/needless_pass_by_value.rs:149:20
 173    |
 174 LL | fn more_fun(_item: impl Club<'static, i32>) {}
 175    |                    ^^^^^^^^^^^^^^^^^^^^^^^ help: consider taking a reference instead: `&impl Club<'static, i32>`
 176
 177 error: aborting due to 22 previous errors
 178