diff options
Diffstat (limited to 'tests/ui/generator/issue-93161.rs')
-rw-r--r-- | tests/ui/generator/issue-93161.rs | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/tests/ui/generator/issue-93161.rs b/tests/ui/generator/issue-93161.rs deleted file mode 100644 index ae8603b7c..000000000 --- a/tests/ui/generator/issue-93161.rs +++ /dev/null @@ -1,93 +0,0 @@ -// edition:2021 -// run-pass - -#![feature(never_type)] - -use std::future::Future; - -// See if we can run a basic `async fn` -pub async fn foo(x: &u32, y: u32) -> u32 { - let y = &y; - let z = 9; - let z = &z; - let y = async { *y + *z }.await; - let a = 10; - let a = &a; - *x + y + *a -} - -async fn add(x: u32, y: u32) -> u32 { - let a = async { x + y }; - a.await -} - -async fn build_aggregate(a: u32, b: u32, c: u32, d: u32) -> u32 { - let x = (add(a, b).await, add(c, d).await); - x.0 + x.1 -} - -enum Never {} -fn never() -> Never { - panic!() -} - -async fn includes_never(crash: bool, x: u32) -> u32 { - let result = async { x * x }.await; - if !crash { - return result; - } - #[allow(unused)] - let bad = never(); - result *= async { x + x }.await; - drop(bad); - result -} - -async fn partial_init(x: u32) -> u32 { - #[allow(unreachable_code)] - let _x: (String, !) = (String::new(), return async { x + x }.await); -} - -async fn read_exact(_from: &mut &[u8], _to: &mut [u8]) -> Option<()> { - Some(()) -} - -async fn hello_world() { - let data = [0u8; 1]; - let mut reader = &data[..]; - - let mut marker = [0u8; 1]; - read_exact(&mut reader, &mut marker).await.unwrap(); -} - -fn run_fut<T>(fut: impl Future<Output = T>) -> T { - use std::sync::Arc; - use std::task::{Context, Poll, Wake, Waker}; - - struct MyWaker; - impl Wake for MyWaker { - fn wake(self: Arc<Self>) { - unimplemented!() - } - } - - let waker = Waker::from(Arc::new(MyWaker)); - let mut context = Context::from_waker(&waker); - - let mut pinned = Box::pin(fut); - loop { - match pinned.as_mut().poll(&mut context) { - Poll::Pending => continue, - Poll::Ready(v) => return v, - } - } -} - -fn main() { - let x = 5; - assert_eq!(run_fut(foo(&x, 7)), 31); - assert_eq!(run_fut(build_aggregate(1, 2, 3, 4)), 10); - assert_eq!(run_fut(includes_never(false, 4)), 16); - assert_eq!(run_fut(partial_init(4)), 8); - run_fut(hello_world()); -} |