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Fix #10504, don't lint on derived code

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Centri3 2023-06-05 14:38:38 -05:00
parent b033883e2b
commit 6ea7cd8ec7
3 changed files with 22 additions and 4 deletions
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3
clippy_lints/src/trait_bounds.rs
View file

@ -260,6 +260,9 @@ impl TraitBounds {
SpanlessTy { ty: p.bounded_ty, cx },
p.bounds.iter().collect::<Vec<_>>()
);
if let TyKind::Path(qpath) = p.bounded_ty.kind;
if format!("{}:", rustc_hir_pretty::qpath_to_string(&qpath))
== format!("{}:", snippet(cx, p.bounded_ty.span, "_"));
then {
let trait_bounds = v

15
tests/ui/type_repetition_in_bounds.rs
View file

@ -1,6 +1,7 @@
#![deny(clippy::type_repetition_in_bounds)]
#![allow(clippy::extra_unused_type_parameters)]
use serde::Deserialize;
use std::ops::{Add, AddAssign, Div, DivAssign, Mul, MulAssign, Sub, SubAssign};
pub fn foo<T>(_t: T)
@ -70,6 +71,20 @@ mod issue4326 {
}
}
// Extern macros shouldn't lint, again (see #10504)
mod issue10504 {
use serde::{Deserialize, Serialize};
use std::fmt::Debug;
use std::hash::Hash;
#[derive(Debug, Serialize, Deserialize)]
#[serde(bound(
serialize = "T: Serialize + Hash + Eq",
deserialize = "Box<T>: serde::de::DeserializeOwned + Hash + Eq"
))]
struct OpaqueParams<T: ?Sized + Debug>(std::marker::PhantomData<T>);
}
// Issue #7360
struct Foo<T, U>
where

8
tests/ui/type_repetition_in_bounds.stderr
View file

@ -1,5 +1,5 @@
error: this type has already been used as a bound predicate
--> $DIR/type_repetition_in_bounds.rs:9:5
--> $DIR/type_repetition_in_bounds.rs:10:5
|
LL | T: Clone,
| ^^^^^^^^
@ -12,7 +12,7 @@ LL | #![deny(clippy::type_repetition_in_bounds)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: this type has already been used as a bound predicate
--> $DIR/type_repetition_in_bounds.rs:26:5
--> $DIR/type_repetition_in_bounds.rs:27:5
|
LL | Self: Copy + Default + Ord,
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -20,7 +20,7 @@ LL | Self: Copy + Default + Ord,
= help: consider combining the bounds: `Self: Clone + Copy + Default + Ord`
error: this type has already been used as a bound predicate
--> $DIR/type_repetition_in_bounds.rs:86:5
--> $DIR/type_repetition_in_bounds.rs:101:5
|
LL | T: Clone,
| ^^^^^^^^
@ -28,7 +28,7 @@ LL | T: Clone,
= help: consider combining the bounds: `T: ?Sized + Clone`
error: this type has already been used as a bound predicate
--> $DIR/type_repetition_in_bounds.rs:91:5
--> $DIR/type_repetition_in_bounds.rs:106:5
|
LL | T: ?Sized,
| ^^^^^^^^^