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Expand Debug for Mutex<T> implementation to unsized T #4134

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merged 1 commit into from Sep 26, 2021
Merged

Expand Debug for Mutex<T> implementation to unsized T #4134

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4 changes: 2 additions & 2 deletions tokio/src/sync/mutex.rs
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Expand Up @@ -496,14 +496,14 @@ where
}
}

impl<T> std::fmt::Debug for Mutex<T>
impl<T: ?Sized> std::fmt::Debug for Mutex<T>
where
T: std::fmt::Debug,
{
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
let mut d = f.debug_struct("Mutex");
match self.try_lock() {
Ok(inner) => d.field("data", &*inner),
Ok(inner) => d.field("data", &&*inner),
Err(_) => d.field("data", &format_args!("<locked>")),
};
d.finish()
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