Commit 00140a83 authored by Boqun Feng's avatar Boqun Feng Committed by Miguel Ojeda

rust: sync: impl {Debug,Display} for {Unique,}Arc

This allows printing the inner data of `Arc` and its friends if the
inner data implements `Display` or `Debug`. It's useful for logging and
debugging purpose.
Signed-off-by: default avatarBoqun Feng <boqun.feng@gmail.com>
Reviewed-by: default avatarVincenzo Palazzo <vincenzopalazzodev@gmail.com>
Reviewed-by: default avatarGary Guo <gary@garyguo.net>
Reviewed-by: default avatarAndreas Hindborg <a.hindborg@samsung.com>
Reviewed-by: default avatarBjörn Roy Baron <bjorn3_gh@protonmail.com>
Link: https://lore.kernel.org/r/20230207185216.1314638-2-boqun.feng@gmail.comSigned-off-by: default avatarMiguel Ojeda <ojeda@kernel.org>
parent 09a9639e
...@@ -22,6 +22,7 @@ ...@@ -22,6 +22,7 @@
}; };
use alloc::boxed::Box; use alloc::boxed::Box;
use core::{ use core::{
fmt,
marker::{PhantomData, Unsize}, marker::{PhantomData, Unsize},
mem::{ManuallyDrop, MaybeUninit}, mem::{ManuallyDrop, MaybeUninit},
ops::{Deref, DerefMut}, ops::{Deref, DerefMut},
...@@ -522,3 +523,27 @@ fn deref_mut(&mut self) -> &mut Self::Target { ...@@ -522,3 +523,27 @@ fn deref_mut(&mut self) -> &mut Self::Target {
unsafe { &mut self.inner.ptr.as_mut().data } unsafe { &mut self.inner.ptr.as_mut().data }
} }
} }
impl<T: fmt::Display + ?Sized> fmt::Display for UniqueArc<T> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt::Display::fmt(self.deref(), f)
}
}
impl<T: fmt::Display + ?Sized> fmt::Display for Arc<T> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt::Display::fmt(self.deref(), f)
}
}
impl<T: fmt::Debug + ?Sized> fmt::Debug for UniqueArc<T> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt::Debug::fmt(self.deref(), f)
}
}
impl<T: fmt::Debug + ?Sized> fmt::Debug for Arc<T> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt::Debug::fmt(self.deref(), f)
}
}
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