mirror of https://github.com/rust-lang/rust
37 lines
804 B
Rust
37 lines
804 B
Rust
// Non-regression test ICE from issue #105809 and duplicates.
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//@ build-pass: the ICE is during codegen
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//@ compile-flags: --edition 2018 -Zmir-opt-level=1
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use std::{future::Future, pin::Pin};
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// Create a `T` without affecting analysis like `loop {}`.
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fn create<T>() -> T {
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loop {}
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}
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async fn trivial_future() {}
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struct Connection<H> {
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_h: H,
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}
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async fn complex_future<H>(conn: &Connection<H>) {
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let small_fut = async move {
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let _ = conn;
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trivial_future().await;
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};
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let mut tuple = (small_fut,);
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let (small_fut_again,) = &mut tuple;
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let _ = small_fut_again;
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}
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fn main() {
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let mut fut = complex_future(&Connection { _h: () });
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let mut cx = create();
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let future = unsafe { Pin::new_unchecked(&mut fut) };
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let _ = future.poll(&mut cx);
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}
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