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qaijuang
34 lines
1.2 KiB
Plaintext
34 lines
1.2 KiB
Plaintext
LL| |// Regression test for <https://github.com/rust-lang/rust/issues/151135>.
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LL| |
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LL| |//@ edition: 2021
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LL| |
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LL| |//@ aux-build: executor.rs
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LL| |extern crate executor;
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LL| |
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LL| |use std::sync::atomic::{AtomicUsize, Ordering};
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LL| |
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LL| |static STEPS: AtomicUsize = AtomicUsize::new(0);
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LL| |
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LL| 1|async fn call_once(f: impl AsyncFnOnce()) {
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LL| 1| f().await;
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LL| 1|}
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LL| |
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LL| 1|pub fn main() {
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LL| 1| let async_closure = async || {
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LL| 1| STEPS.fetch_add(1, Ordering::SeqCst);
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LL| 1| STEPS.fetch_add(1, Ordering::SeqCst);
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LL| 1| };
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------------------
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| Unexecuted instantiation: async_closure2::main::{closure#0}::{closure#0}::<_>
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------------------
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| async_closure2::main::{closure#0}:
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| LL| 1| let async_closure = async || {
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| LL| 1| STEPS.fetch_add(1, Ordering::SeqCst);
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| LL| 1| STEPS.fetch_add(1, Ordering::SeqCst);
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| LL| 1| };
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------------------
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LL| 1| executor::block_on(call_once(async_closure));
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LL| 1| assert_eq!(STEPS.load(Ordering::SeqCst), 2);
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LL| 1|}
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