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Add test for MSRV checking for assigning_clones

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humannum14916 2024-03-19 17:07:27 -04:00
parent 21a97f0192
commit 8c866d36cc
3 changed files with 35 additions and 7 deletions
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11
tests/ui/assigning_clones.fixed
View file

@ -128,6 +128,17 @@ fn ignore_generic_clone<T: Clone>(a: &mut T, b: &T) {
*a = b.clone();
}
#[clippy::msrv = "1.62"]
fn msrv_1_62(mut a: String, b: &str) {
// Should not be linted, as clone_into wasn't stabilized until 1.63
a = b.to_owned();
}
#[clippy::msrv = "1.63"]
fn msrv_1_63(mut a: String, b: &str) {
b.clone_into(&mut a);
}
macro_rules! clone_inside {
($a:expr, $b: expr) => {
$a = $b.clone();

11
tests/ui/assigning_clones.rs
View file

@ -128,6 +128,17 @@ fn ignore_generic_clone<T: Clone>(a: &mut T, b: &T) {
*a = b.clone();
}
#[clippy::msrv = "1.62"]
fn msrv_1_62(mut a: String, b: &str) {
// Should not be linted, as clone_into wasn't stabilized until 1.63
a = b.to_owned();
}
#[clippy::msrv = "1.63"]
fn msrv_1_63(mut a: String, b: &str) {
a = b.to_owned();
}
macro_rules! clone_inside {
($a:expr, $b: expr) => {
$a = $b.clone();

20
tests/ui/assigning_clones.stderr
View file

@ -68,40 +68,46 @@ LL | a = b.clone();
| ^^^^^^^^^^^^^ help: use `clone_from()`: `a.clone_from(&b)`
error: assigning the result of `ToOwned::to_owned()` may be inefficient
--> tests/ui/assigning_clones.rs:145:5
--> tests/ui/assigning_clones.rs:139:5
|
LL | a = b.to_owned();
| ^^^^^^^^^^^^^^^^ help: use `clone_into()`: `b.clone_into(&mut a)`
error: assigning the result of `ToOwned::to_owned()` may be inefficient
--> tests/ui/assigning_clones.rs:156:5
|
LL | *mut_string = ref_str.to_owned();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `clone_into()`: `ref_str.clone_into(mut_string)`
error: assigning the result of `ToOwned::to_owned()` may be inefficient
--> tests/ui/assigning_clones.rs:149:5
--> tests/ui/assigning_clones.rs:160:5
|
LL | mut_string = ref_str.to_owned();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `clone_into()`: `ref_str.clone_into(&mut mut_string)`
error: assigning the result of `ToOwned::to_owned()` may be inefficient
--> tests/ui/assigning_clones.rs:170:5
--> tests/ui/assigning_clones.rs:181:5
|
LL | **mut_box_string = ref_str.to_owned();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `clone_into()`: `ref_str.clone_into(&mut (*mut_box_string))`
error: assigning the result of `ToOwned::to_owned()` may be inefficient
--> tests/ui/assigning_clones.rs:174:5
--> tests/ui/assigning_clones.rs:185:5
|
LL | **mut_box_string = ref_str.to_owned();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `clone_into()`: `ref_str.clone_into(&mut (*mut_box_string))`
error: assigning the result of `ToOwned::to_owned()` may be inefficient
--> tests/ui/assigning_clones.rs:178:5
--> tests/ui/assigning_clones.rs:189:5
|
LL | *mut_thing = ToOwned::to_owned(ref_str);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `clone_into()`: `ToOwned::clone_into(ref_str, mut_thing)`
error: assigning the result of `ToOwned::to_owned()` may be inefficient
--> tests/ui/assigning_clones.rs:182:5
--> tests/ui/assigning_clones.rs:193:5
|
LL | mut_thing = ToOwned::to_owned(ref_str);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `clone_into()`: `ToOwned::clone_into(ref_str, &mut mut_thing)`
error: aborting due to 17 previous errors
error: aborting due to 18 previous errors