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#![allow(clippy::eq_op, clippy::trivially_copy_pass_by_ref, dead_code)]
#[cfg(feature = "use_core")]
extern crate core;
use std::marker::PhantomData;
#[macro_use]
extern crate derivative;
#[derive(Derivative)]
#[derivative(PartialEq)]
struct Foo {
foo: u8,
}
/// Test for backward compatibility.
#[derive(Derivative)]
#[derivative(PartialEq = "feature_allow_slow_enum")]
#[allow(unused)]
enum AllowsFeature<T> {
Some(T),
None,
}
#[derive(Derivative)]
#[derivative(PartialEq)]
enum Option<T> {
Some(T),
None,
}
#[derive(Derivative)]
#[derivative(PartialEq)]
enum SimpleEnum {
Some,
None,
}
#[derive(Derivative)]
#[derivative(PartialEq)]
enum UnitEnum {
Single,
}
#[derive(Derivative)]
#[derivative(PartialEq)]
struct WithPtr<T: ?Sized> {
#[derivative(PartialEq(bound = ""))]
foo: *const T,
}
#[derive(Derivative)]
#[derivative(PartialEq)]
struct Empty;
#[derive(Derivative)]
#[derivative(PartialEq)]
struct AllIgnored {
#[derivative(PartialEq = "ignore")]
foo: u8,
}
#[derive(Derivative)]
#[derivative(PartialEq)]
struct OneIgnored {
#[derivative(PartialEq = "ignore")]
foo: u8,
bar: u8,
}
#[derive(Derivative)]
#[derivative(PartialEq)]
struct Parity(#[derivative(PartialEq(compare_with = "same_parity"))] u8);
fn same_parity(lhs: &u8, rhs: &u8) -> bool {
lhs % 2 == rhs % 2
}
#[derive(Derivative)]
#[derivative(PartialEq)]
struct Generic<T>(#[derivative(PartialEq(compare_with = "dummy_cmp", bound = ""))] T);
fn dummy_cmp<T>(_: &T, _: &T) -> bool {
true
}
struct NonPartialEq;
#[derive(Derivative)]
#[derivative(PartialEq, Eq)]
struct GenericIgnore<T> {
f: u32,
#[derivative(PartialEq = "ignore")]
t: PhantomData<T>,
}
trait SomeTrait {}
struct SomeType {
#[allow(dead_code)]
foo: u8,
}
impl SomeTrait for SomeType {}
#[test]
fn main() {
assert!(Foo { foo: 7 } == Foo { foo: 7 });
assert!(Foo { foo: 7 } != Foo { foo: 42 });
let ptr1: *const dyn SomeTrait = &SomeType { foo: 0 };
let ptr2: *const dyn SomeTrait = &SomeType { foo: 1 };
assert!(WithPtr { foo: ptr1 } == WithPtr { foo: ptr1 });
assert!(WithPtr { foo: ptr1 } != WithPtr { foo: ptr2 });
assert!(Empty == Empty);
assert!(AllIgnored { foo: 0 } == AllIgnored { foo: 42 });
assert!(OneIgnored { foo: 0, bar: 6 } == OneIgnored { foo: 42, bar: 6 });
assert!(OneIgnored { foo: 0, bar: 6 } != OneIgnored { foo: 42, bar: 7 });
assert!(Option::Some(42) == Option::Some(42));
assert!(Option::Some(0) != Option::Some(42));
assert!(Option::Some(42) != Option::None);
assert!(Option::None != Option::Some(42));
assert!(Option::None::<u8> == Option::None::<u8>);
assert!(SimpleEnum::Some == SimpleEnum::Some);
assert!(SimpleEnum::None == SimpleEnum::None);
assert!(SimpleEnum::Some != SimpleEnum::None);
assert!(SimpleEnum::None != SimpleEnum::Some);
assert!(UnitEnum::Single == UnitEnum::Single);
assert!(Parity(3) == Parity(7));
assert!(Parity(2) == Parity(42));
assert!(Parity(3) != Parity(42));
assert!(Parity(2) != Parity(7));
assert!(Generic(SomeType { foo: 0 }) == Generic(SomeType { foo: 0 }));
assert!(
GenericIgnore {
f: 123,
t: PhantomData::<NonPartialEq>::default()
} == GenericIgnore {
f: 123,
t: PhantomData::<NonPartialEq>::default()
}
);
}
|
