61 lines
2.4 KiB
Plaintext
61 lines
2.4 KiB
Plaintext
error: this argument is passed by value, but not consumed in the function body
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--> $DIR/needless_pass_by_value.rs:9:23
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9 | fn foo<T: Default>(v: Vec<T>, w: Vec<T>, mut x: Vec<T>, y: Vec<T>) -> Vec<T> {
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| ^^^^^^ help: consider changing the type to `&[T]`
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note: lint level defined here
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--> $DIR/needless_pass_by_value.rs:4:9
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4 | #![deny(needless_pass_by_value)]
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| ^^^^^^^^^^^^^^^^^^^^^^
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error: this argument is passed by value, but not consumed in the function body
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--> $DIR/needless_pass_by_value.rs:23:11
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23 | fn bar(x: String, y: Wrapper) {
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| ^^^^^^ help: consider changing the type to `&str`
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error: this argument is passed by value, but not consumed in the function body
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--> $DIR/needless_pass_by_value.rs:23:22
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23 | fn bar(x: String, y: Wrapper) {
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| ^^^^^^^ help: consider taking a reference instead `&Wrapper`
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error: this argument is passed by value, but not consumed in the function body
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--> $DIR/needless_pass_by_value.rs:29:63
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29 | fn test_borrow_trait<T: std::borrow::Borrow<str>, U>(t: T, u: U) {
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| ^ help: consider taking a reference instead `&U`
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error: this argument is passed by value, but not consumed in the function body
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--> $DIR/needless_pass_by_value.rs:40:18
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40 | fn test_match(x: Option<Option<String>>, y: Option<Option<String>>) {
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| ^^^^^^^^^^^^^^^^^^^^^^
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help: consider taking a reference instead
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| fn test_match(x: &Option<Option<String>>, y: Option<Option<String>>) {
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| match *x {
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error: this argument is passed by value, but not consumed in the function body
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--> $DIR/needless_pass_by_value.rs:53:24
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53 | fn test_destructure(x: Wrapper, y: Wrapper, z: Wrapper) {
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| ^^^^^^^ help: consider taking a reference instead `&Wrapper`
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error: this argument is passed by value, but not consumed in the function body
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--> $DIR/needless_pass_by_value.rs:53:36
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53 | fn test_destructure(x: Wrapper, y: Wrapper, z: Wrapper) {
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| ^^^^^^^
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help: consider taking a reference instead
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| fn test_destructure(x: Wrapper, y: &Wrapper, z: Wrapper) {
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| let Wrapper(s) = z; // moved
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| let Wrapper(ref t) = *y; // not moved
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| let Wrapper(_) = *y; // still not moved
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error: aborting due to 7 previous errors
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