30 lines
540 B
Rust
30 lines
540 B
Rust
// edition:2018
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// revisions: no_drop_tracking drop_tracking
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// [drop_tracking] compile-flags: -Zdrop-tracking=yes
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// [no_drop_tracking] compile-flags: -Zdrop-tracking=no
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#![feature(must_not_suspend)]
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#![deny(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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struct Bar {
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u: Umm,
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}
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async fn other() {}
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impl Bar {
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async fn uhoh(&mut self) {
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let guard = &mut self.u; //~ ERROR `Umm` held across
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other().await;
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*guard = Umm { i: 2 }
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}
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}
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fn main() {}
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