29 lines
437 B
Rust
29 lines
437 B
Rust
// edition:2018
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#![feature(must_not_suspend)]
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#![deny(must_not_suspend)]
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#[must_not_suspend]
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trait Wow {}
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impl Wow for i32 {}
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fn r#impl() -> impl Wow {
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1
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}
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fn r#dyn() -> Box<dyn Wow> {
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Box::new(1)
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}
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async fn other() {}
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pub async fn uhoh() {
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let _guard1 = r#impl(); //~ ERROR implementer of `Wow` held across
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let _guard2 = r#dyn(); //~ ERROR boxed `Wow` trait object held across
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other().await;
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}
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fn main() {
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}
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