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add async fn with partial initialization

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This commit is contained in:
Ralf Jung 2019-08-09 11:01:11 +02:00
parent fc06cb71bf
commit abcd244927
1 changed files with 8 additions and 1 deletions
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9
tests/run-pass/async-fn.rs
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@ -1,4 +1,4 @@
#![feature(async_await)]
#![feature(async_await, never_type)]
use std::{future::Future, pin::Pin, task::Poll, ptr};
use std::task::{Waker, RawWaker, RawWakerVTable, Context};
@ -40,6 +40,11 @@ async fn includes_never(crash: bool, x: u32) -> u32 {
result
}
async fn partial_init(x: u32) -> u32 {
#[allow(unreachable_code)]
let _x: (String, !) = (String::new(), return async { x + x }.await);
}
fn run_fut(mut fut: impl Future<Output=u32>, output: u32) {
fn raw_waker_clone(_this: *const ()) -> RawWaker {
panic!("unimplemented");
@ -71,4 +76,6 @@ fn main() {
run_fut(build_aggregate(1, 2, 3, 4), 10);
run_fut(includes_never(false, 4), 16);
run_fut(partial_init(4), 8);
}