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Diffstat (limited to 'tests/ui/async-await/issue-71137.rs')
-rw-r--r-- | tests/ui/async-await/issue-71137.rs | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tests/ui/async-await/issue-71137.rs b/tests/ui/async-await/issue-71137.rs new file mode 100644 index 000000000..7695e0325 --- /dev/null +++ b/tests/ui/async-await/issue-71137.rs @@ -0,0 +1,23 @@ +// edition:2018 +#![feature(must_not_suspend)] +#![allow(must_not_suspend)] + +use std::future::Future; +use std::sync::Mutex; + +fn fake_spawn<F: Future + Send + 'static>(f: F) { } + +async fn wrong_mutex() { + let m = Mutex::new(1); + { + let mut guard = m.lock().unwrap(); + (async { "right"; }).await; + *guard += 1; + } + + (async { "wrong"; }).await; +} + +fn main() { + fake_spawn(wrong_mutex()); //~ Error future cannot be sent between threads safely +} |