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Auto merge of #10179 - llogiq:trim-suspicious-to-owned-paths, r=xFrednet

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trim paths in `suspicious_to_owned`

This continues my path trimming spree. I'm not going to add yet another changelog entry, we should have one "trim paths in some applicable lints" entry instead.

---

changelog: none
This commit is contained in:
bors 2023-01-12 12:10:56 +00:00
commit 7c01721434
2 changed files with 8 additions and 6 deletions
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6
clippy_lints/src/methods/suspicious_to_owned.rs
View file

@ -5,7 +5,7 @@ use if_chain::if_chain;
use rustc_errors::Applicability;
use rustc_hir as hir;
use rustc_lint::LateContext;
use rustc_middle::ty;
use rustc_middle::ty::{self, print::with_forced_trimmed_paths};
use rustc_span::sym;
use super::SUSPICIOUS_TO_OWNED;
@ -24,7 +24,9 @@ pub fn check(cx: &LateContext<'_>, expr: &hir::Expr<'_>, recv: &hir::Expr<'_>) -
cx,
SUSPICIOUS_TO_OWNED,
expr.span,
&format!("this `to_owned` call clones the {input_type} itself and does not cause the {input_type} contents to become owned"),
&with_forced_trimmed_paths!(format!(
"this `to_owned` call clones the {input_type} itself and does not cause the {input_type} contents to become owned"
)),
"consider using, depending on intent",
format!("{recv_snip}.clone()` or `{recv_snip}.into_owned()"),
app,

8
tests/ui/suspicious_to_owned.stderr
View file

@ -1,4 +1,4 @@
error: this `to_owned` call clones the std::borrow::Cow<'_, str> itself and does not cause the std::borrow::Cow<'_, str> contents to become owned
error: this `to_owned` call clones the Cow<'_, str> itself and does not cause the Cow<'_, str> contents to become owned
--> $DIR/suspicious_to_owned.rs:16:13
|
LL | let _ = cow.to_owned();
@ -6,19 +6,19 @@ LL | let _ = cow.to_owned();
|
= note: `-D clippy::suspicious-to-owned` implied by `-D warnings`
error: this `to_owned` call clones the std::borrow::Cow<'_, [char; 3]> itself and does not cause the std::borrow::Cow<'_, [char; 3]> contents to become owned
error: this `to_owned` call clones the Cow<'_, [char; 3]> itself and does not cause the Cow<'_, [char; 3]> contents to become owned
--> $DIR/suspicious_to_owned.rs:26:13
|
LL | let _ = cow.to_owned();
| ^^^^^^^^^^^^^^ help: consider using, depending on intent: `cow.clone()` or `cow.into_owned()`
error: this `to_owned` call clones the std::borrow::Cow<'_, std::vec::Vec<char>> itself and does not cause the std::borrow::Cow<'_, std::vec::Vec<char>> contents to become owned
error: this `to_owned` call clones the Cow<'_, Vec<char>> itself and does not cause the Cow<'_, Vec<char>> contents to become owned
--> $DIR/suspicious_to_owned.rs:36:13
|
LL | let _ = cow.to_owned();
| ^^^^^^^^^^^^^^ help: consider using, depending on intent: `cow.clone()` or `cow.into_owned()`
error: this `to_owned` call clones the std::borrow::Cow<'_, str> itself and does not cause the std::borrow::Cow<'_, str> contents to become owned
error: this `to_owned` call clones the Cow<'_, str> itself and does not cause the Cow<'_, str> contents to become owned
--> $DIR/suspicious_to_owned.rs:46:13
|
LL | let _ = cow.to_owned();