67 lines
1.7 KiB
Rust
67 lines
1.7 KiB
Rust
// compile-flags: -C opt-level=3
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// aux-build: issue-72470-lib.rs
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// edition:2018
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// build-pass
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// Regression test for issue #72470, using the minimization
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// in https://github.com/jonas-schievink/llvm-error
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extern crate issue_72470_lib;
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use std::future::Future;
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use std::pin::Pin;
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use std::sync::Mutex;
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use std::task::Poll::{Pending, Ready};
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#[allow(dead_code)]
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enum Msg {
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A(Vec<()>),
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B,
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}
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#[allow(dead_code)]
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enum Out {
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_0(Option<Msg>),
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Disabled,
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}
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#[allow(unused_must_use)]
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fn main() {
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let mut rx = issue_72470_lib::unbounded_channel::<Msg>();
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let entity = Mutex::new(());
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issue_72470_lib::run(async move {
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{
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let output = {
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let mut fut = rx.recv();
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issue_72470_lib::poll_fn(|cx| {
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loop {
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let fut = unsafe { Pin::new_unchecked(&mut fut) };
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let out = match fut.poll(cx) {
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Ready(out) => out,
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Pending => {
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break;
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}
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};
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#[allow(unused_variables)]
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match &out {
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Some(_msg) => {}
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_ => break,
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}
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return Ready(Out::_0(out));
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}
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Ready(Out::_0(None))
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})
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.await
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};
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match output {
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Out::_0(Some(_msg)) => {
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entity.lock();
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}
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Out::_0(None) => unreachable!(),
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_ => unreachable!(),
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}
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}
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entity.lock();
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});
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}
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