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057b8d2571
This customizes the subset of the Rust standard library `alloc` that
was just imported as-is, mainly by:
- Adding SPDX license identifiers.
- Skipping modules (e.g. `rc` and `sync`) via new `cfg`s.
- Adding fallible (`try_*`) versions of existing infallible methods
(i.e. returning a `Result` instead of panicking).
Since the standard library requires stable/unstable attributes,
these additions are annotated with:
#[stable(feature = "kernel", since = "1.0.0")]
Using "kernel" as the feature allows to have the additions
clearly marked. The "1.0.0" version is just a placeholder.
(At the moment, only one is needed, but in the future more
fallible methods will be added).
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com>
Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com>
Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com>
Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com>
Co-developed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Gary Guo <gary@garyguo.net>
Co-developed-by: Matthew Bakhtiari <dev@mtbk.me>
Signed-off-by: Matthew Bakhtiari <dev@mtbk.me>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
50 lines
2.6 KiB
Rust
50 lines
2.6 KiB
Rust
// SPDX-License-Identifier: Apache-2.0 OR MIT
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use crate::alloc::Allocator;
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#[cfg(not(no_global_oom_handling))]
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use crate::borrow::Cow;
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use super::Vec;
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macro_rules! __impl_slice_eq1 {
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([$($vars:tt)*] $lhs:ty, $rhs:ty $(where $ty:ty: $bound:ident)?, #[$stability:meta]) => {
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#[$stability]
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impl<T, U, $($vars)*> PartialEq<$rhs> for $lhs
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where
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T: PartialEq<U>,
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$($ty: $bound)?
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{
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#[inline]
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fn eq(&self, other: &$rhs) -> bool { self[..] == other[..] }
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#[inline]
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fn ne(&self, other: &$rhs) -> bool { self[..] != other[..] }
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}
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}
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}
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__impl_slice_eq1! { [A1: Allocator, A2: Allocator] Vec<T, A1>, Vec<U, A2>, #[stable(feature = "rust1", since = "1.0.0")] }
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__impl_slice_eq1! { [A: Allocator] Vec<T, A>, &[U], #[stable(feature = "rust1", since = "1.0.0")] }
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__impl_slice_eq1! { [A: Allocator] Vec<T, A>, &mut [U], #[stable(feature = "rust1", since = "1.0.0")] }
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__impl_slice_eq1! { [A: Allocator] &[T], Vec<U, A>, #[stable(feature = "partialeq_vec_for_ref_slice", since = "1.46.0")] }
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__impl_slice_eq1! { [A: Allocator] &mut [T], Vec<U, A>, #[stable(feature = "partialeq_vec_for_ref_slice", since = "1.46.0")] }
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__impl_slice_eq1! { [A: Allocator] Vec<T, A>, [U], #[stable(feature = "partialeq_vec_for_slice", since = "1.48.0")] }
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__impl_slice_eq1! { [A: Allocator] [T], Vec<U, A>, #[stable(feature = "partialeq_vec_for_slice", since = "1.48.0")] }
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#[cfg(not(no_global_oom_handling))]
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__impl_slice_eq1! { [A: Allocator] Cow<'_, [T]>, Vec<U, A> where T: Clone, #[stable(feature = "rust1", since = "1.0.0")] }
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#[cfg(not(no_global_oom_handling))]
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__impl_slice_eq1! { [] Cow<'_, [T]>, &[U] where T: Clone, #[stable(feature = "rust1", since = "1.0.0")] }
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#[cfg(not(no_global_oom_handling))]
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__impl_slice_eq1! { [] Cow<'_, [T]>, &mut [U] where T: Clone, #[stable(feature = "rust1", since = "1.0.0")] }
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__impl_slice_eq1! { [A: Allocator, const N: usize] Vec<T, A>, [U; N], #[stable(feature = "rust1", since = "1.0.0")] }
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__impl_slice_eq1! { [A: Allocator, const N: usize] Vec<T, A>, &[U; N], #[stable(feature = "rust1", since = "1.0.0")] }
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// NOTE: some less important impls are omitted to reduce code bloat
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// FIXME(Centril): Reconsider this?
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//__impl_slice_eq1! { [const N: usize] Vec<A>, &mut [B; N], }
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//__impl_slice_eq1! { [const N: usize] [A; N], Vec<B>, }
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//__impl_slice_eq1! { [const N: usize] &[A; N], Vec<B>, }
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//__impl_slice_eq1! { [const N: usize] &mut [A; N], Vec<B>, }
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//__impl_slice_eq1! { [const N: usize] Cow<'a, [A]>, [B; N], }
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//__impl_slice_eq1! { [const N: usize] Cow<'a, [A]>, &[B; N], }
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//__impl_slice_eq1! { [const N: usize] Cow<'a, [A]>, &mut [B; N], }
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