2013-06-18 01:25:06 +02:00
|
|
|
// Testing guarantees provided by once functions.
|
|
|
|
// This program would segfault if it were legal.
|
|
|
|
|
2014-03-22 02:05:05 +01:00
|
|
|
#![feature(once_fns)]
|
2014-06-07 20:13:26 +02:00
|
|
|
use std::sync::Arc;
|
2013-06-18 01:25:06 +02:00
|
|
|
|
2014-11-26 14:12:18 +01:00
|
|
|
fn foo<F:FnOnce()>(blk: F) {
|
2013-06-18 01:25:06 +02:00
|
|
|
blk();
|
|
|
|
blk(); //~ ERROR use of moved value
|
|
|
|
}
|
|
|
|
|
|
|
|
fn main() {
|
2014-01-30 21:04:47 +01:00
|
|
|
let x = Arc::new(true);
|
2014-11-26 14:12:18 +01:00
|
|
|
foo(move|| {
|
2014-03-22 08:55:50 +01:00
|
|
|
assert!(*x);
|
2013-12-03 07:37:26 +01:00
|
|
|
drop(x);
|
2014-01-28 00:29:50 +01:00
|
|
|
});
|
2013-06-18 01:25:06 +02:00
|
|
|
}
|