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//@ known-bug: #103708 | ||
#![feature(min_specialization)] | ||
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trait MySpecTrait { | ||
fn f(); | ||
} | ||
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impl<'a, T: ?Sized> MySpecTrait for T { | ||
default fn f() {} | ||
} | ||
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impl<'a, T: ?Sized> MySpecTrait for &'a T { | ||
fn f() {} | ||
} | ||
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fn main() {} |
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//@ known-bug: #104685 | ||
//@ compile-flags: -Zextra-const-ub-checks | ||
#![feature(extern_types)] | ||
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extern { | ||
pub type ExternType; | ||
} | ||
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extern "C" { | ||
pub static EXTERN: ExternType; | ||
} | ||
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pub static EMPTY: () = unsafe { &EXTERN; }; | ||
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fn main() {} |
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//@ known-bug: #105249 | ||
//@ compile-flags: -Zpolymorphize=on | ||
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trait Foo<T> { | ||
fn print<'a>(&'a self) where T: 'a { println!("foo"); } | ||
} | ||
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impl<'a> Foo<&'a ()> for () { } | ||
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trait Bar: for<'a> Foo<&'a ()> { } | ||
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impl Bar for () {} | ||
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fn main() { | ||
(&() as &dyn Bar).print(); // Segfault | ||
} |
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//@ known-bug: #115994 | ||
//@ compile-flags: -Cdebuginfo=2 --crate-type lib | ||
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// To prevent "overflow while adding drop-check rules". | ||
use std::mem::ManuallyDrop; | ||
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pub enum Foo<U> { | ||
Leaf(U), | ||
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Branch(BoxedFoo<BoxedFoo<U>>), | ||
} | ||
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pub type BoxedFoo<U> = ManuallyDrop<Box<Foo<U>>>; | ||
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pub fn test() -> Foo<usize> { | ||
todo!() | ||
} |
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//@ known-bug: #116721 | ||
//@ compile-flags: -Zmir-opt-level=3 --emit=mir | ||
fn hey<T>(it: &[T]) | ||
where | ||
[T]: Clone, | ||
{ | ||
} | ||
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fn main() {} |
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//@ known-bug: #118244 | ||
//@ compile-flags: -Cdebuginfo=2 | ||
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#![allow(incomplete_features)] | ||
#![feature(generic_const_exprs)] | ||
struct Inner<const N: usize, const M: usize>; | ||
impl<const N: usize, const M: usize> Inner<N, M> where [(); N + M]: { | ||
fn i() -> Self { | ||
Self | ||
} | ||
} | ||
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struct Outer<const A: usize, const B: usize>(Inner<A, { B * 2 }>) where [(); A + (B * 2)]:; | ||
impl<const A: usize, const B: usize> Outer<A, B> where [(); A + (B * 2)]: { | ||
fn o() -> Self { | ||
Self(Inner::i()) | ||
} | ||
} | ||
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fn main() { | ||
Outer::<1, 1>::o(); | ||
} |
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//@ known-bug: #124083 | ||
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struct Outest(&'a ()); | ||
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fn make() -> Outest {} | ||
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fn main() { | ||
if let Outest("foo") = make() {} | ||
} |
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//@ known-bug: #124151 | ||
#![feature(generic_const_exprs)] | ||
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use std::ops::Add; | ||
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pub struct Dimension; | ||
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pub struct Quantity<S, const D: Dimension>(S); | ||
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impl<const D: Dimension, LHS, RHS> Add<LHS, D> for Quantity<LHS, { Dimension }> {} | ||
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pub fn add<const U: Dimension>(x: Quantity<f32, U>) -> Quantity<f32, U> { | ||
x + y | ||
} |
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//@ known-bug: #124164 | ||
static S_COUNT: = std::sync::atomic::AtomicUsize::new(0); | ||
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fn main() {} |