1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
// run-pass
// aux-build:trait_superkinds_in_metadata.rs
// Tests "capabilities" granted by traits with super-builtin-kinds,
// even when using them cross-crate.
extern crate trait_superkinds_in_metadata;
use std::sync::mpsc::{channel, Sender, Receiver};
use trait_superkinds_in_metadata::{RequiresRequiresShareAndSend, RequiresShare};
#[derive(PartialEq, Debug)]
struct X<T>(T);
impl <T: Sync> RequiresShare for X<T> { }
impl <T: Sync+Send> RequiresRequiresShareAndSend for X<T> { }
fn foo<T: RequiresRequiresShareAndSend + 'static>(val: T, chan: Sender<T>) {
chan.send(val).unwrap();
}
pub fn main() {
let (tx, rx): (Sender<X<isize>>, Receiver<X<isize>>) = channel();
foo(X(31337), tx);
assert_eq!(rx.recv().unwrap(), X(31337));
}
|
