error: writing `&Vec` instead of `&[_]` involves a new object where a slice will do --> $DIR/ptr_arg.rs:7:14 | LL | fn do_vec(x: &Vec) { | ^^^^^^^^^ help: change this to: `&[i64]` | = note: `-D clippy::ptr-arg` implied by `-D warnings` error: writing `&mut Vec` instead of `&mut [_]` involves a new object where a slice will do --> $DIR/ptr_arg.rs:11:18 | LL | fn do_vec_mut(x: &mut Vec) { | ^^^^^^^^^^^^^ help: change this to: `&mut [i64]` error: writing `&String` instead of `&str` involves a new object where a slice will do --> $DIR/ptr_arg.rs:15:14 | LL | fn do_str(x: &String) { | ^^^^^^^ help: change this to: `&str` error: writing `&mut String` instead of `&mut str` involves a new object where a slice will do --> $DIR/ptr_arg.rs:19:18 | LL | fn do_str_mut(x: &mut String) { | ^^^^^^^^^^^ help: change this to: `&mut str` error: writing `&PathBuf` instead of `&Path` involves a new object where a slice will do --> $DIR/ptr_arg.rs:23:15 | LL | fn do_path(x: &PathBuf) { | ^^^^^^^^ help: change this to: `&Path` error: writing `&mut PathBuf` instead of `&mut Path` involves a new object where a slice will do --> $DIR/ptr_arg.rs:27:19 | LL | fn do_path_mut(x: &mut PathBuf) { | ^^^^^^^^^^^^ help: change this to: `&mut Path` error: writing `&Vec` instead of `&[_]` involves a new object where a slice will do --> $DIR/ptr_arg.rs:35:18 | LL | fn do_vec(x: &Vec); | ^^^^^^^^^ help: change this to: `&[i64]` error: writing `&Vec` instead of `&[_]` involves a new object where a slice will do --> $DIR/ptr_arg.rs:48:14 | LL | fn cloned(x: &Vec) -> Vec { | ^^^^^^^^ | help: change this to | LL ~ fn cloned(x: &[u8]) -> Vec { LL ~ let e = x.to_owned(); LL | let f = e.clone(); // OK LL | let g = x; LL ~ let h = g.to_owned(); LL | let i = (e).clone(); LL ~ x.to_owned() | error: writing `&String` instead of `&str` involves a new object where a slice will do --> $DIR/ptr_arg.rs:57:18 | LL | fn str_cloned(x: &String) -> String { | ^^^^^^^ | help: change this to | LL ~ fn str_cloned(x: &str) -> String { LL ~ let a = x.to_owned(); LL ~ let b = x.to_owned(); LL | let c = b.clone(); LL | let d = a.clone().clone().clone(); LL ~ x.to_owned() | error: writing `&PathBuf` instead of `&Path` involves a new object where a slice will do --> $DIR/ptr_arg.rs:65:19 | LL | fn path_cloned(x: &PathBuf) -> PathBuf { | ^^^^^^^^ | help: change this to | LL ~ fn path_cloned(x: &Path) -> PathBuf { LL ~ let a = x.to_path_buf(); LL ~ let b = x.to_path_buf(); LL | let c = b.clone(); LL | let d = a.clone().clone().clone(); LL ~ x.to_path_buf() | error: writing `&String` instead of `&str` involves a new object where a slice will do --> $DIR/ptr_arg.rs:73:44 | LL | fn false_positive_capacity(x: &Vec, y: &String) { | ^^^^^^^ | help: change this to | LL ~ fn false_positive_capacity(x: &Vec, y: &str) { LL | let a = x.capacity(); LL ~ let b = y.to_owned(); LL ~ let c = y; | error: using a reference to `Cow` is not recommended --> $DIR/ptr_arg.rs:87:25 | LL | fn test_cow_with_ref(c: &Cow<[i32]>) {} | ^^^^^^^^^^^ help: change this to: `&[i32]` error: writing `&Vec` instead of `&[_]` involves a new object where a slice will do --> $DIR/ptr_arg.rs:140:21 | LL | fn foo_vec(vec: &Vec) { | ^^^^^^^^ | help: change this to | LL ~ fn foo_vec(vec: &[u8]) { LL ~ let _ = vec.to_owned().pop(); LL ~ let _ = vec.to_owned().clone(); | error: writing `&PathBuf` instead of `&Path` involves a new object where a slice will do --> $DIR/ptr_arg.rs:145:23 | LL | fn foo_path(path: &PathBuf) { | ^^^^^^^^ | help: change this to | LL ~ fn foo_path(path: &Path) { LL ~ let _ = path.to_path_buf().pop(); LL ~ let _ = path.to_path_buf().clone(); | error: writing `&PathBuf` instead of `&Path` involves a new object where a slice will do --> $DIR/ptr_arg.rs:150:21 | LL | fn foo_str(str: &PathBuf) { | ^^^^^^^^ | help: change this to | LL ~ fn foo_str(str: &Path) { LL ~ let _ = str.to_path_buf().pop(); LL ~ let _ = str.to_path_buf().clone(); | error: writing `&mut Vec` instead of `&mut [_]` involves a new object where a slice will do --> $DIR/ptr_arg.rs:156:29 | LL | fn mut_vec_slice_methods(v: &mut Vec) { | ^^^^^^^^^^^^^ help: change this to: `&mut [u32]` error: aborting due to 16 previous errors