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15 lines
209 B
Rust
15 lines
209 B
Rust
// check-pass
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// edition:2018
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use std::future::Future;
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async fn enter<'a, F, R>(mut callback: F)
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where
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F: FnMut(&'a mut i32) -> R,
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R: Future<Output = ()> + 'a,
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{
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unimplemented!()
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}
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fn main() {}
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