mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-01 23:12:02 +00:00
25 lines
465 B
Rust
25 lines
465 B
Rust
#![feature(negative_impls)]
|
|
//@ edition:2018
|
|
|
|
// This tests the specialized async-await-specific error when futures don't implement an
|
|
// auto trait (which is specifically Sync) due to some type that was captured.
|
|
|
|
struct Foo;
|
|
|
|
impl !Sync for Foo {}
|
|
|
|
fn is_sync<T: Sync>(t: T) { }
|
|
|
|
async fn bar() {
|
|
let x = Foo;
|
|
baz().await;
|
|
drop(x);
|
|
}
|
|
|
|
async fn baz() { }
|
|
|
|
fn main() {
|
|
is_sync(bar());
|
|
//~^ ERROR future cannot be shared between threads safely
|
|
}
|