56 lines
1.1 KiB
Rust
56 lines
1.1 KiB
Rust
// known-bug: #110395
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#![allow(incomplete_features)]
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#![feature(
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associated_type_bounds,
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const_trait_impl,
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effects,
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const_cmp,
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)]
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use std::marker::Destruct;
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const fn cmp(a: &impl ~const PartialEq) -> bool {
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a == a
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}
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const fn wrap(x: impl ~const PartialEq + ~const Destruct)
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-> impl ~const PartialEq + ~const Destruct
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{
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x
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}
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#[const_trait]
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trait Foo {
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fn huh() -> impl ~const PartialEq + ~const Destruct + Copy;
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}
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impl const Foo for () {
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fn huh() -> impl ~const PartialEq + ~const Destruct + Copy {
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123
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}
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}
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const _: () = {
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assert!(cmp(&0xDEADBEEFu32));
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assert!(cmp(&()));
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assert!(wrap(123) == wrap(123));
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assert!(wrap(123) != wrap(456));
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let x = <() as Foo>::huh();
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assert!(x == x);
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};
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#[const_trait]
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trait T {}
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struct S;
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impl const T for S {}
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const fn rpit() -> impl ~const T { S }
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const fn apit(_: impl ~const T + ~const Destruct) {}
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const fn rpit_assoc_bound() -> impl IntoIterator<Item: ~const T> { Some(S) }
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const fn apit_assoc_bound(_: impl IntoIterator<Item: ~const T> + ~const Destruct) {}
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fn main() {}
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