File: issue-95187-same-trait-bound-different-constness.rs

package info (click to toggle)
rustc-web 1.70.0%2Bdfsg1-7~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,517,036 kB
  • sloc: xml: 147,962; javascript: 10,210; sh: 8,590; python: 8,220; ansic: 5,901; cpp: 4,635; makefile: 4,006; asm: 2,856
file content (45 lines) | stat: -rw-r--r-- 720 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
// Tests that `T: ~const Foo` in a specializing impl is treated as equivalent to
// `T: Foo` in the default impl for the purposes of specialization (i.e., it
// does not think that the user is attempting to specialize on trait `Foo`).

// check-pass

#![feature(rustc_attrs)]
#![feature(min_specialization)]
#![feature(const_trait_impl)]

#[rustc_specialization_trait]
trait Specialize {}

#[const_trait]
trait Foo {}

#[const_trait]
trait Bar {}

impl<T> Bar for T
where
    T: Foo,
{}

impl<T> const Bar for T
where
    T: ~const Foo,
    T: Specialize,
{}

#[const_trait]
trait Baz {}

impl<T> const Baz for T
where
    T: Foo,
{}

impl<T> const Baz for T
where
    T: ~const Foo,
    T: Specialize,
{}

fn main() {}