185fa56256
This lint is not yet ready for stable use, primarily due to false positives in edge cases; we want to test it out more before stabilizing.
27 lines
353 B
Rust
27 lines
353 B
Rust
// edition:2018
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// run-pass
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#![feature(must_not_suspend)]
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#![warn(must_not_suspend)]
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#[must_not_suspend = "You gotta use Umm's, ya know?"]
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struct Umm {
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_i: i64
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}
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fn bar() -> Umm {
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Umm {
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_i: 1
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}
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}
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async fn other() {}
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pub async fn uhoh() {
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let _guard = bar(); //~ WARNING `Umm` 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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