rust-clippy/tests/ui/derive_partial_eq_without_eq.fixed
2024-06-25 17:50:48 +02:00

198 lines
3.9 KiB
Rust

#![allow(unused)]
#![warn(clippy::derive_partial_eq_without_eq)]
// Don't warn on structs that aren't PartialEq
pub struct NotPartialEq {
foo: u32,
bar: String,
}
// Eq can be derived but is missing
#[derive(Debug, PartialEq, Eq)]
pub struct MissingEq {
foo: u32,
bar: String,
}
// Check that we honor the `allow` attribute
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Debug, PartialEq)]
pub struct AllowedMissingEq {
foo: u32,
bar: String,
}
// Check that we honor the `expect` attribute
#[expect(clippy::derive_partial_eq_without_eq)]
#[derive(Debug, PartialEq)]
pub struct ExpectedMissingEq {
foo: u32,
bar: String,
}
// Eq is derived
#[derive(PartialEq, Eq)]
pub struct NotMissingEq {
foo: u32,
bar: String,
}
// Eq is manually implemented
#[derive(PartialEq)]
pub struct ManualEqImpl {
foo: u32,
bar: String,
}
impl Eq for ManualEqImpl {}
// Cannot be Eq because f32 isn't Eq
#[derive(PartialEq)]
pub struct CannotBeEq {
foo: u32,
bar: f32,
}
// Don't warn if PartialEq is manually implemented
pub struct ManualPartialEqImpl {
foo: u32,
bar: String,
}
impl PartialEq for ManualPartialEqImpl {
fn eq(&self, other: &Self) -> bool {
self.foo == other.foo && self.bar == other.bar
}
}
// Generic fields should be properly checked for Eq-ness
#[derive(PartialEq, Eq)]
pub struct GenericNotEq<T: Eq, U: PartialEq> {
foo: T,
bar: U,
}
#[derive(PartialEq, Eq)]
pub struct GenericEq<T: Eq, U: Eq> {
foo: T,
bar: U,
}
#[derive(PartialEq, Eq)]
pub struct TupleStruct(u32);
#[derive(PartialEq, Eq)]
pub struct GenericTupleStruct<T: Eq>(T);
#[derive(PartialEq)]
pub struct TupleStructNotEq(f32);
#[derive(PartialEq, Eq)]
pub enum Enum {
Foo(u32),
Bar { a: String, b: () },
}
#[derive(PartialEq, Eq)]
pub enum GenericEnum<T: Eq, U: Eq, V: Eq> {
Foo(T),
Bar { a: U, b: V },
}
#[derive(PartialEq)]
pub enum EnumNotEq {
Foo(u32),
Bar { a: String, b: f32 },
}
// Ensure that rustfix works properly when `PartialEq` has other derives on either side
#[derive(Debug, PartialEq, Eq, Clone)]
pub struct RustFixWithOtherDerives;
#[derive(PartialEq, Eq)]
pub struct Generic<T>(T);
#[derive(PartialEq, Eq)]
pub struct GenericPhantom<T>(core::marker::PhantomData<T>);
mod _hidden {
#[derive(PartialEq, Eq)]
pub struct Reexported;
#[derive(PartialEq, Eq)]
pub struct InPubFn;
#[derive(PartialEq)]
pub(crate) struct PubCrate;
#[derive(PartialEq)]
pub(super) struct PubSuper;
}
pub use _hidden::Reexported;
pub fn _from_mod() -> _hidden::InPubFn {
_hidden::InPubFn
}
#[derive(PartialEq)]
struct InternalTy;
// This is a `non_exhaustive` type so should not warn.
#[derive(Debug, PartialEq)]
#[non_exhaustive]
pub struct MissingEqNonExhaustive {
foo: u32,
bar: String,
}
// This is a `non_exhaustive` type so should not warn.
#[derive(Debug, PartialEq)]
pub struct MissingEqNonExhaustive1 {
foo: u32,
#[non_exhaustive]
bar: String,
}
// This is a `non_exhaustive` type so should not warn.
#[derive(Debug, PartialEq)]
#[non_exhaustive]
pub enum MissingEqNonExhaustive2 {
Foo,
Bar,
}
// This is a `non_exhaustive` type so should not warn.
#[derive(Debug, PartialEq)]
pub enum MissingEqNonExhaustive3 {
Foo,
#[non_exhaustive]
Bar,
}
mod struct_gen {
// issue 9413
pub trait Group {
type Element: Eq + PartialEq;
}
pub trait Suite {
type Group: Group;
}
#[derive(PartialEq, Eq)]
//~^ ERROR: you are deriving `PartialEq` and can implement `Eq`
pub struct Foo<C: Suite>(<C::Group as Group>::Element);
#[derive(PartialEq, Eq)]
pub struct Bar<C: Suite>(i32, <C::Group as Group>::Element);
// issue 9319
#[derive(PartialEq, Eq)]
//~^ ERROR: you are deriving `PartialEq` and can implement `Eq`
pub struct Oof<T: Fn()>(T);
#[derive(PartialEq, Eq)]
pub struct Rab<T: Fn()>(T);
}
fn main() {}