@@ -12,10 +12,10 @@
//! do so first instead of bypassing this crate.
#![no_std]
+#![feature(arbitrary_self_types)]
#![feature(coerce_unsized)]
#![feature(dispatch_from_dyn)]
#![feature(new_uninit)]
-#![feature(receiver_trait)]
#![feature(unsize)]
// Ensure conditional compilation based on the kernel configuration works;
@@ -441,9 +441,6 @@ fn as_ref(&self) -> &Arc<T> {
}
}
-// This is to allow [`ListArc`] (and variants) to be used as the type of `self`.
-impl<T, const ID: u64> core::ops::Receiver for ListArc<T, ID> where T: ListArcSafe<ID> + ?Sized {}
-
// This is to allow coercion from `ListArc<T>` to `ListArc<U>` if `T` can be converted to the
// dynamically-sized type (DST) `U`.
impl<T, U, const ID: u64> core::ops::CoerceUnsized<ListArc<U, ID>> for ListArc<T, ID>
@@ -171,9 +171,6 @@ unsafe fn container_of(ptr: *const T) -> NonNull<ArcInner<T>> {
}
}
-// This is to allow [`Arc`] (and variants) to be used as the type of `self`.
-impl<T: ?Sized> core::ops::Receiver for Arc<T> {}
-
// This is to allow coercion from `Arc<T>` to `Arc<U>` if `T` can be converted to the
// dynamically-sized type (DST) `U`.
impl<T: ?Sized + Unsize<U>, U: ?Sized> core::ops::CoerceUnsized<Arc<U>> for Arc<T> {}
@@ -480,9 +477,6 @@ pub struct ArcBorrow<'a, T: ?Sized + 'a> {
_p: PhantomData<&'a ()>,
}
-// This is to allow [`ArcBorrow`] (and variants) to be used as the type of `self`.
-impl<T: ?Sized> core::ops::Receiver for ArcBorrow<'_, T> {}
-
// This is to allow `ArcBorrow<U>` to be dispatched on when `ArcBorrow<T>` can be coerced into
// `ArcBorrow<U>`.
impl<T: ?Sized + Unsize<U>, U: ?Sized> core::ops::DispatchFromDyn<ArcBorrow<'_, U>>
@@ -263,7 +263,7 @@ $(obj)/%.lst: $(obj)/%.c FORCE
# Compile Rust sources (.rs)
# ---------------------------------------------------------------------------
-rust_allowed_features := new_uninit
+rust_allowed_features := arbitrary_self_types,new_uninit
# `--out-dir` is required to avoid temporaries being created by `rustc` in the
# current working directory, which may be not accessible in the out-of-tree
The `arbitrary_self_types` RFC [1] is accepted and the feature is being worked on [2]. As part of the RFC, a new `Receiver` trait is to be added, and it will be automatically implemented for all types that have `Deref` implementation. This is different from the existing `Receiver` trait that we use, which is a custom implementation that opts-in a type into being used as receiver. To prepare us for the change, remove the `Receiver` implementation and the associated feature. To still allow `Arc` and others to be used as method receivers, turn on `arbitrary_self_types` feature instead. Cc: Adrian Taylor <ade@hohum.me.uk> Link: https://github.com/rust-lang/rfcs/pull/3519 [1] Link: https://github.com/rust-lang/rust/issues/44874 [2] Signed-off-by: Gary Guo <gary@garyguo.net> --- rust/kernel/lib.rs | 2 +- rust/kernel/list/arc.rs | 3 --- rust/kernel/sync/arc.rs | 6 ------ scripts/Makefile.build | 2 +- 4 files changed, 2 insertions(+), 11 deletions(-) base-commit: 93dc3be19450447a3a7090bd1dfb9f3daac3e8d2