File: negative-coherence-considering-regions.rs

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 934,128 kB
  • sloc: xml: 158,127; python: 36,062; javascript: 19,855; sh: 19,700; cpp: 18,947; ansic: 12,993; asm: 4,792; makefile: 690; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (23 lines) | stat: -rw-r--r-- 397 bytes parent folder | download | duplicates (16)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
//@ revisions: any_lt static_lt
//@[static_lt] check-pass

#![feature(negative_impls)]
#![feature(with_negative_coherence)]

trait Foo {}

impl<T> !Foo for &'static T {}

trait Bar {}

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

#[cfg(any_lt)]
impl<T> Bar for &T {}
//[any_lt]~^ ERROR conflicting implementations of trait `Bar` for type `&_`

#[cfg(static_lt)]
impl<T> Bar for &'static T {}


fn main() {}