src/test/ui/feature-gate-async-await.rs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// edition:2018

#![feature(futures_api)]

async fn foo() {} //~ ERROR async fn is unstable

fn main() {
    let _ = async {}; //~ ERROR async blocks are unstable
    let _ = async || {}; //~ ERROR async closures are unstable
}