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mod core {
mod marker {
#[lang = "sized"]
pub trait Sized {}
#[lang = "phantom_data"]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct PhantomData<T: ?Sized>;
#[unstable(feature = "structural_match", issue = "31434")]
#[lang = "structural_teq"]
pub trait StructuralEq {
// Empty.
}
#[unstable(feature = "structural_match", issue = "31434")]
#[lang = "structural_peq"]
pub trait StructuralPartialEq {
// Empty.
}
}
pub mod cmp {
use super::marker::Sized;
#[lang = "eq"]
pub trait PartialEq<Rhs: ?Sized = Self> {
fn eq(&self, other: &Rhs) -> bool;
fn ne(&self, other: &Rhs) -> bool {
!self.eq(other)
}
}
pub trait Eq: PartialEq<Self> {
fn assert_receiver_is_total_eq(&self) {}
}
}
pub mod ptr {
use super::cmp::{Eq, PartialEq};
macro_rules! fnptr_impls_safety_abi {
($FnTy: ty, $($Arg: ident),*) => {
#[stable(feature = "fnptr_impls", since = "1.4.0")]
impl<Ret, $($Arg),*> PartialEq for $FnTy {
#[inline]
fn eq(&self, other: &Self) -> bool {
*self as usize == *other as usize
}
}
#[stable(feature = "fnptr_impls", since = "1.4.0")]
impl<Ret, $($Arg),*> Eq for $FnTy {}
}
}
fnptr_impls_safety_abi! { extern "Rust" fn() -> Ret, }
}
}
#[derive(PartialEq, Eq)]
struct AllowedBelow {
// { dg-warning "struct is never constructed" "" { target *-*-* } .-1 }
f: fn(),
}
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