Use feature(doc_auto_cfg) instead of feature(doc_cfg) with manual…

… annotations under `nightly_docs` cargo feature.

src/anybitpattern.rs

@@ -56,9 +56,5 @@ pub unsafe trait AnyBitPattern:
 unsafe impl<T: Pod> AnyBitPattern for T {}
 
 #[cfg(feature = "zeroable_maybe_uninit")]
-#[cfg_attr(
-  feature = "nightly_docs",
-  doc(cfg(feature = "zeroable_maybe_uninit"))
-)]
 unsafe impl<T> AnyBitPattern for core::mem::MaybeUninit<T> where T: AnyBitPattern
 {}

src/checked.rs

@@ -225,7 +225,6 @@ impl core::fmt::Display for CheckedCastError {
   }
 }
 #[cfg(feature = "extern_crate_std")]
-#[cfg_attr(feature = "nightly_docs", doc(cfg(feature = "extern_crate_std")))]
 impl std::error::Error for CheckedCastError {}
 
 impl From<crate::PodCastError> for CheckedCastError {

src/lib.rs

@@ -4,7 +4,7 @@
 #![allow(clippy::uninlined_format_args)]
 #![allow(clippy::result_unit_err)]
 #![allow(clippy::type_complexity)]
-#![cfg_attr(feature = "nightly_docs", feature(doc_cfg))]
+#![cfg_attr(feature = "nightly_docs", feature(doc_auto_cfg))]
 #![cfg_attr(feature = "nightly_portable_simd", feature(portable_simd))]
 #![cfg_attr(feature = "nightly_float", feature(f16, f128))]
 #![cfg_attr(
@@ -147,7 +147,6 @@ macro_rules! impl_unsafe_marker_for_simd {
   ($(#[cfg($cfg_predicate:meta)])? unsafe impl $trait:ident for $platform:ident :: {}) => {};
   ($(#[cfg($cfg_predicate:meta)])? unsafe impl $trait:ident for $platform:ident :: { $first_type:ident $(, $types:ident)* $(,)? }) => {
     $( #[cfg($cfg_predicate)] )?
-    $( #[cfg_attr(feature = "nightly_docs", doc(cfg($cfg_predicate)))] )?
     unsafe impl $trait for $platform::$first_type {}
     $( #[cfg($cfg_predicate)] )? // To prevent recursion errors if nothing is going to be expanded anyway.
     impl_unsafe_marker_for_simd!($( #[cfg($cfg_predicate)] )? unsafe impl $trait for $platform::{ $( $types ),* });
@@ -160,7 +159,6 @@ extern crate std;
 #[cfg(feature = "extern_crate_alloc")]
 extern crate alloc;
 #[cfg(feature = "extern_crate_alloc")]
-#[cfg_attr(feature = "nightly_docs", doc(cfg(feature = "extern_crate_alloc")))]
 pub mod allocation;
 #[cfg(feature = "extern_crate_alloc")]
 pub use allocation::*;
@@ -186,7 +184,6 @@ pub use pod_in_option::*;
 #[cfg(feature = "must_cast")]
 mod must;
 #[cfg(feature = "must_cast")]
-#[cfg_attr(feature = "nightly_docs", doc(cfg(feature = "must_cast")))]
 pub use must::*;
 
 mod no_uninit;
@@ -203,7 +200,6 @@ mod transparent;
 pub use transparent::*;
 
 #[cfg(feature = "derive")]
-#[cfg_attr(feature = "nightly_docs", doc(cfg(feature = "derive")))]
 pub use bytemuck_derive::{
   AnyBitPattern, ByteEq, ByteHash, CheckedBitPattern, Contiguous, NoUninit,
   Pod, TransparentWrapper, Zeroable,
@@ -237,7 +233,6 @@ impl core::fmt::Display for PodCastError {
   }
 }
 #[cfg(feature = "extern_crate_std")]
-#[cfg_attr(feature = "nightly_docs", doc(cfg(feature = "extern_crate_std")))]
 impl std::error::Error for PodCastError {}
 
 /// Re-interprets `&T` as `&[u8]`.

src/pod.rs

@@ -58,22 +58,10 @@ unsafe impl Pod for f128 {}
 unsafe impl<T: Pod> Pod for Wrapping<T> {}
 
 #[cfg(feature = "unsound_ptr_pod_impl")]
-#[cfg_attr(
-  feature = "nightly_docs",
-  doc(cfg(feature = "unsound_ptr_pod_impl"))
-)]
 unsafe impl<T: 'static> Pod for *mut T {}
 #[cfg(feature = "unsound_ptr_pod_impl")]
-#[cfg_attr(
-  feature = "nightly_docs",
-  doc(cfg(feature = "unsound_ptr_pod_impl"))
-)]
 unsafe impl<T: 'static> Pod for *const T {}
 #[cfg(feature = "unsound_ptr_pod_impl")]
-#[cfg_attr(
-  feature = "nightly_docs",
-  doc(cfg(feature = "unsound_ptr_pod_impl"))
-)]
 unsafe impl<T: 'static> PodInOption for NonNull<T> {}
 
 unsafe impl<T: ?Sized + 'static> Pod for PhantomData<T> {}
@@ -83,7 +71,6 @@ unsafe impl<T: Pod> Pod for core::mem::ManuallyDrop<T> {}
 // Note(Lokathor): MaybeUninit can NEVER be Pod.
 
 #[cfg(feature = "min_const_generics")]
-#[cfg_attr(feature = "nightly_docs", doc(cfg(feature = "min_const_generics")))]
 unsafe impl<T, const N: usize> Pod for [T; N] where T: Pod {}
 
 #[cfg(not(feature = "min_const_generics"))]
@@ -141,10 +128,6 @@ impl_unsafe_marker_for_simd!(
 );
 
 #[cfg(feature = "nightly_portable_simd")]
-#[cfg_attr(
-  feature = "nightly_docs",
-  doc(cfg(feature = "nightly_portable_simd"))
-)]
 unsafe impl<T, const N: usize> Pod for core::simd::Simd<T, N>
 where
   T: core::simd::SimdElement + Pod,

src/transparent.rs

@@ -304,19 +304,11 @@ pub unsafe trait TransparentWrapper<Inner: ?Sized> {
 
 unsafe impl<T> TransparentWrapper<T> for core::num::Wrapping<T> {}
 #[cfg(feature = "transparentwrapper_extra")]
-#[cfg_attr(
-  feature = "nightly_docs",
-  doc(cfg(feature = "transparentwrapper_extra"))
-)]
 unsafe impl<T> TransparentWrapper<T> for core::num::Saturating<T> {}
 
 // Note that `Reverse` existed since Rust 1.19.0, but was only made `#[repr(transparent)]`
 // in Rust 1.52.0 (PR: https://github.com/rust-lang/rust/pull/81879), so we have it under
 // the same feature as `Saturating`, which was stabilized in Rust 1.74.0, so that this
 // impl cannot be used on a version before 1.52.0 where it would be unsound.
 #[cfg(feature = "transparentwrapper_extra")]
-#[cfg_attr(
-  feature = "nightly_docs",
-  doc(cfg(feature = "transparentwrapper_extra"))
-)]
 unsafe impl<T> TransparentWrapper<T> for core::cmp::Reverse<T> {}

src/zeroable.rs

@@ -75,7 +75,6 @@ unsafe impl<T: Zeroable> Zeroable for core::cell::UnsafeCell<T> {}
 unsafe impl<T: Zeroable> Zeroable for core::cell::Cell<T> {}
 
 #[cfg(feature = "zeroable_atomics")]
-#[cfg_attr(feature = "nightly_docs", doc(cfg(feature = "zeroable_atomics")))]
 mod atomic_impls {
   use super::Zeroable;
 
@@ -111,10 +110,6 @@ mod atomic_impls {
 }
 
 #[cfg(feature = "zeroable_maybe_uninit")]
-#[cfg_attr(
-  feature = "nightly_docs",
-  doc(cfg(feature = "zeroable_maybe_uninit"))
-)]
 unsafe impl<T> Zeroable for core::mem::MaybeUninit<T> {}
 
 unsafe impl<A: Zeroable> Zeroable for (A,) {}
@@ -163,7 +158,6 @@ unsafe impl<
 }
 
 #[cfg(feature = "min_const_generics")]
-#[cfg_attr(feature = "nightly_docs", doc(cfg(feature = "min_const_generics")))]
 unsafe impl<T, const N: usize> Zeroable for [T; N] where T: Zeroable {}
 
 #[cfg(not(feature = "min_const_generics"))]
@@ -221,10 +215,6 @@ impl_unsafe_marker_for_simd!(
 );
 
 #[cfg(feature = "nightly_portable_simd")]
-#[cfg_attr(
-  feature = "nightly_docs",
-  doc(cfg(feature = "nightly_portable_simd"))
-)]
 unsafe impl<T, const N: usize> Zeroable for core::simd::Simd<T, N>
 where
   T: core::simd::SimdElement + Zeroable,

src/zeroable_in_option.rs

@@ -31,5 +31,4 @@ unsafe impl<T: ?Sized> ZeroableInOption for &'_ T {}
 unsafe impl<T: ?Sized> ZeroableInOption for &'_ mut T {}
 
 #[cfg(feature = "extern_crate_alloc")]
-#[cfg_attr(feature = "nightly_docs", doc(cfg(feature = "extern_crate_alloc")))]
 unsafe impl<T: ?Sized> ZeroableInOption for alloc::boxed::Box<T> {}