mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-05 21:24:12 +00:00
27 lines
470 B
Rust
27 lines
470 B
Rust
|
// revisions: good bad
|
||
|
//[good] check-pass
|
||
|
|
||
|
use std::marker::PhantomData;
|
||
|
use std::ops::Drop;
|
||
|
|
||
|
struct DropMe<'a, 'b: 'a, 'c: 'b>(PhantomData<&'a ()>, PhantomData<&'b ()>, PhantomData<&'c ()>);
|
||
|
|
||
|
#[cfg(good)]
|
||
|
impl<'a, 'b, 'c> Drop for DropMe<'a, 'b, 'c>
|
||
|
where
|
||
|
'c: 'a,
|
||
|
{
|
||
|
fn drop(&mut self) {}
|
||
|
}
|
||
|
|
||
|
#[cfg(bad)]
|
||
|
impl<'a, 'b, 'c> Drop for DropMe<'a, 'b, 'c>
|
||
|
where
|
||
|
'a: 'c,
|
||
|
//[bad]~^ ERROR `Drop` impl requires `'a: 'c`
|
||
|
{
|
||
|
fn drop(&mut self) {}
|
||
|
}
|
||
|
|
||
|
fn main() {}
|