mirror of
https://github.com/rust-lang/rust.git
synced 2024-10-31 06:22:00 +00:00
22 lines
395 B
Rust
22 lines
395 B
Rust
#![feature(generators)]
|
|
|
|
use std::cell::Cell;
|
|
|
|
fn main() {
|
|
fn assert_sync<T: Sync>(_: T) {}
|
|
fn assert_send<T: Send>(_: T) {}
|
|
|
|
assert_sync(|| {
|
|
//~^ ERROR: generator cannot be shared between threads safely
|
|
let a = Cell::new(2);
|
|
yield;
|
|
});
|
|
|
|
let a = Cell::new(2);
|
|
assert_send(|| {
|
|
//~^ ERROR: E0277
|
|
drop(&a);
|
|
yield;
|
|
});
|
|
}
|