1 error: this argument is passed by value, but not consumed in the function body
2 --> $DIR/needless_pass_by_value.rs:17:23
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]`
7 = note: `-D clippy::needless-pass-by-value` implied by `-D warnings`
9 error: this argument is passed by value, but not consumed in the function body
10 --> $DIR/needless_pass_by_value.rs:31:11
12 LL | fn bar(x: String, y: Wrapper) {
13 | ^^^^^^ help: consider changing the type to: `&str`
15 error: this argument is passed by value, but not consumed in the function body
16 --> $DIR/needless_pass_by_value.rs:31:22
18 LL | fn bar(x: String, y: Wrapper) {
19 | ^^^^^^^ help: consider taking a reference instead: `&Wrapper`
21 error: this argument is passed by value, but not consumed in the function body
22 --> $DIR/needless_pass_by_value.rs:37:71
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`
27 error: this argument is passed by value, but not consumed in the function body
28 --> $DIR/needless_pass_by_value.rs:49:18
30 LL | fn test_match(x: Option<Option<String>>, y: Option<Option<String>>) {
31 | ^^^^^^^^^^^^^^^^^^^^^^ help: consider taking a reference instead: `&Option<Option<String>>`
33 error: this argument is passed by value, but not consumed in the function body
34 --> $DIR/needless_pass_by_value.rs:62:24
36 LL | fn test_destructure(x: Wrapper, y: Wrapper, z: Wrapper) {
37 | ^^^^^^^ help: consider taking a reference instead: `&Wrapper`
39 error: this argument is passed by value, but not consumed in the function body
40 --> $DIR/needless_pass_by_value.rs:62:36
42 LL | fn test_destructure(x: Wrapper, y: Wrapper, z: Wrapper) {
43 | ^^^^^^^ help: consider taking a reference instead: `&Wrapper`
45 error: this argument is passed by value, but not consumed in the function body
46 --> $DIR/needless_pass_by_value.rs:78:49
48 LL | fn test_blanket_ref<T: Foo, S: Serialize>(_foo: T, _serializable: S) {}
49 | ^ help: consider taking a reference instead: `&T`
51 error: this argument is passed by value, but not consumed in the function body
52 --> $DIR/needless_pass_by_value.rs:80:18
54 LL | fn issue_2114(s: String, t: String, u: Vec<i32>, v: Vec<i32>) {
55 | ^^^^^^ help: consider taking a reference instead: `&String`
57 error: this argument is passed by value, but not consumed in the function body
58 --> $DIR/needless_pass_by_value.rs:80:29
60 LL | fn issue_2114(s: String, t: String, u: Vec<i32>, v: Vec<i32>) {
62 help: consider changing the type to
64 LL | fn issue_2114(s: String, t: &str, u: Vec<i32>, v: Vec<i32>) {
66 help: change `t.clone()` to
68 LL | let _ = t.to_string();
71 error: this argument is passed by value, but not consumed in the function body
72 --> $DIR/needless_pass_by_value.rs:80:40
74 LL | fn issue_2114(s: String, t: String, u: Vec<i32>, v: Vec<i32>) {
75 | ^^^^^^^^ help: consider taking a reference instead: `&Vec<i32>`
77 error: this argument is passed by value, but not consumed in the function body
78 --> $DIR/needless_pass_by_value.rs:80:53
80 LL | fn issue_2114(s: String, t: String, u: Vec<i32>, v: Vec<i32>) {
82 help: consider changing the type to
84 LL | fn issue_2114(s: String, t: String, u: Vec<i32>, v: &[i32]) {
86 help: change `v.clone()` to
88 LL | let _ = v.to_owned();
91 error: this argument is passed by value, but not consumed in the function body
92 --> $DIR/needless_pass_by_value.rs:93:12
95 | ^^^^^^ help: consider changing the type to: `&str`
97 error: this argument is passed by value, but not consumed in the function body
98 --> $DIR/needless_pass_by_value.rs:94:12
101 | ^^^^^^ help: consider taking a reference instead: `&String`
103 error: this argument is passed by value, but not consumed in the function body
104 --> $DIR/needless_pass_by_value.rs:103:23
106 LL | fn baz(&self, _u: U, _s: Self) {}
107 | ^ help: consider taking a reference instead: `&U`
109 error: this argument is passed by value, but not consumed in the function body
110 --> $DIR/needless_pass_by_value.rs:103:30
112 LL | fn baz(&self, _u: U, _s: Self) {}
113 | ^^^^ help: consider taking a reference instead: `&Self`
115 error: this argument is passed by value, but not consumed in the function body
116 --> $DIR/needless_pass_by_value.rs:125:24
118 LL | fn bar_copy(x: u32, y: CopyWrapper) {
119 | ^^^^^^^^^^^ help: consider taking a reference instead: `&CopyWrapper`
121 help: consider marking this type as Copy
122 --> $DIR/needless_pass_by_value.rs:123:1
124 LL | struct CopyWrapper(u32);
125 | ^^^^^^^^^^^^^^^^^^^^^^^^
127 error: this argument is passed by value, but not consumed in the function body
128 --> $DIR/needless_pass_by_value.rs:131:29
130 LL | fn test_destructure_copy(x: CopyWrapper, y: CopyWrapper, z: CopyWrapper) {
131 | ^^^^^^^^^^^ help: consider taking a reference instead: `&CopyWrapper`
133 help: consider marking this type as Copy
134 --> $DIR/needless_pass_by_value.rs:123:1
136 LL | struct CopyWrapper(u32);
137 | ^^^^^^^^^^^^^^^^^^^^^^^^
139 error: this argument is passed by value, but not consumed in the function body
140 --> $DIR/needless_pass_by_value.rs:131:45
142 LL | fn test_destructure_copy(x: CopyWrapper, y: CopyWrapper, z: CopyWrapper) {
143 | ^^^^^^^^^^^ help: consider taking a reference instead: `&CopyWrapper`
145 help: consider marking this type as Copy
146 --> $DIR/needless_pass_by_value.rs:123:1
148 LL | struct CopyWrapper(u32);
149 | ^^^^^^^^^^^^^^^^^^^^^^^^
151 error: this argument is passed by value, but not consumed in the function body
152 --> $DIR/needless_pass_by_value.rs:131:61
154 LL | fn test_destructure_copy(x: CopyWrapper, y: CopyWrapper, z: CopyWrapper) {
155 | ^^^^^^^^^^^ help: consider taking a reference instead: `&CopyWrapper`
157 help: consider marking this type as Copy
158 --> $DIR/needless_pass_by_value.rs:123:1
160 LL | struct CopyWrapper(u32);
161 | ^^^^^^^^^^^^^^^^^^^^^^^^
163 error: this argument is passed by value, but not consumed in the function body
164 --> $DIR/needless_pass_by_value.rs:143:40
166 LL | fn some_fun<'b, S: Bar<'b, ()>>(_item: S) {}
167 | ^ help: consider taking a reference instead: `&S`
169 error: this argument is passed by value, but not consumed in the function body
170 --> $DIR/needless_pass_by_value.rs:148:20
172 LL | fn more_fun(_item: impl Club<'static, i32>) {}
173 | ^^^^^^^^^^^^^^^^^^^^^^^ help: consider taking a reference instead: `&impl Club<'static, i32>`
175 error: aborting due to 22 previous errors