File: trivial-impl-bounds.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, sid, trixie
  • size: 893,396 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (34 lines) | stat: -rw-r--r-- 457 bytes parent folder | download | duplicates (5) 
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
 
//@ revisions: good1 good2 good3
//@ check-pass

use std::ops::Drop;

struct Foo;

const X: usize = 1;

#[cfg(good1)]
impl Drop for Foo
where
    [(); X]:, // Trivial WF bound
{
    fn drop(&mut self) {}
}

#[cfg(good2)]
impl Drop for Foo
where
    for<'a> &'a (): Copy, // Trivial trait bound
{
    fn drop(&mut self) {}
}

#[cfg(good3)]
impl Drop for Foo
where
    for<'a> &'a (): 'a, // Trivial outlives bound
{
    fn drop(&mut self) {}
}

fn main() {}