rust/tests/ui/generator/not-send-sync.rs
2023-09-23 13:34:07 +00:00

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;
});
}