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diff --git a/vendor/bytemuck/src/contiguous.rs b/vendor/bytemuck/src/contiguous.rs
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--- a/vendor/bytemuck/src/contiguous.rs
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-use super::*;
-
-/// A trait indicating that:
-///
-/// 1. A type has an equivalent representation to some known integral type.
-/// 2. All instances of this type fall in a fixed range of values.
-/// 3. Within that range, there are no gaps.
-///
-/// This is generally useful for fieldless enums (aka "c-style" enums), however
-/// it's important that it only be used for those with an explicit `#[repr]`, as
-/// `#[repr(Rust)]` fieldess enums have an unspecified layout.
-///
-/// Additionally, you shouldn't assume that all implementations are enums. Any
-/// type which meets the requirements above while following the rules under
-/// "Safety" below is valid.
-///
-/// # Example
-///
-/// ```
-/// # use bytemuck::Contiguous;
-/// #[repr(u8)]
-/// #[derive(Debug, Copy, Clone, PartialEq)]
-/// enum Foo {
-///   A = 0,
-///   B = 1,
-///   C = 2,
-///   D = 3,
-///   E = 4,
-/// }
-/// unsafe impl Contiguous for Foo {
-///   type Int = u8;
-///   const MIN_VALUE: u8 = Foo::A as u8;
-///   const MAX_VALUE: u8 = Foo::E as u8;
-/// }
-/// assert_eq!(Foo::from_integer(3).unwrap(), Foo::D);
-/// assert_eq!(Foo::from_integer(8), None);
-/// assert_eq!(Foo::C.into_integer(), 2);
-/// ```
-/// # Safety
-///
-/// This is an unsafe trait, and incorrectly implementing it is undefined
-/// behavior.
-///
-/// Informally, by implementing it, you're asserting that `C` is identical to
-/// the integral type `C::Int`, and that every `C` falls between `C::MIN_VALUE`
-/// and `C::MAX_VALUE` exactly once, without any gaps.
-///
-/// Precisely, the guarantees you must uphold when implementing `Contiguous` for
-/// some type `C` are:
-///
-/// 1. The size of `C` and `C::Int` must be the same, and neither may be a ZST.
-///    (Note: alignment is explicitly allowed to differ)
-///
-/// 2. `C::Int` must be a primitive integer, and not a wrapper type. In the
-///    future, this may be lifted to include cases where the behavior is
-///    identical for a relevant set of traits (Ord, arithmetic, ...).
-///
-/// 3. All `C::Int`s which are in the *inclusive* range between `C::MIN_VALUE`
-///    and `C::MAX_VALUE` are bitwise identical to unique valid instances of
-///    `C`.
-///
-/// 4. There exist no instances of `C` such that their bitpatterns, when
-///    interpreted as instances of `C::Int`, fall outside of the `MAX_VALUE` /
-///    `MIN_VALUE` range -- It is legal for unsafe code to assume that if it
-///    gets a `C` that implements `Contiguous`, it is in the appropriate range.
-///
-/// 5. Finally, you promise not to provide overridden implementations of
-///    `Contiguous::from_integer` and `Contiguous::into_integer`.
-///
-/// For clarity, the following rules could be derived from the above, but are
-/// listed explicitly:
-///
-/// - `C::MAX_VALUE` must be greater or equal to `C::MIN_VALUE` (therefore, `C`
-///   must be an inhabited type).
-///
-/// - There exist no two values between `MIN_VALUE` and `MAX_VALUE` such that
-///   when interpreted as a `C` they are considered identical (by, say, match).
-pub unsafe trait Contiguous: Copy + 'static {
-  /// The primitive integer type with an identical representation to this
-  /// type.
-  ///
-  /// Contiguous is broadly intended for use with fieldless enums, and for
-  /// these the correct integer type is easy: The enum should have a
-  /// `#[repr(Int)]` or `#[repr(C)]` attribute, (if it does not, it is
-  /// *unsound* to implement `Contiguous`!).
-  ///
-  /// - For `#[repr(Int)]`, use the listed `Int`. e.g. `#[repr(u8)]` should use
-  ///   `type Int = u8`.
-  ///
-  /// - For `#[repr(C)]`, use whichever type the C compiler will use to
-  ///   represent the given enum. This is usually `c_int` (from `std::os::raw`
-  ///   or `libc`), but it's up to you to make the determination as the
-  ///   implementer of the unsafe trait.
-  ///
-  /// For precise rules, see the list under "Safety" above.
-  type Int: Copy + Ord;
-
-  /// The upper *inclusive* bound for valid instances of this type.
-  const MAX_VALUE: Self::Int;
-
-  /// The lower *inclusive* bound for valid instances of this type.
-  const MIN_VALUE: Self::Int;
-
-  /// If `value` is within the range for valid instances of this type,
-  /// returns `Some(converted_value)`, otherwise, returns `None`.
-  ///
-  /// This is a trait method so that you can write `value.into_integer()` in
-  /// your code. It is a contract of this trait that if you implement
-  /// `Contiguous` on your type you **must not** override this method.
-  ///
-  /// # Panics
-  ///
-  /// We will not panic for any correct implementation of `Contiguous`, but
-  /// *may* panic if we detect an incorrect one.
-  ///
-  /// This is undefined behavior regardless, so it could have been the nasal
-  /// demons at that point anyway ;).
-  #[inline]
-  fn from_integer(value: Self::Int) -> Option<Self> {
-    // Guard against an illegal implementation of Contiguous. Annoyingly we
-    // can't rely on `transmute` to do this for us (see below), but
-    // whatever, this gets compiled into nothing in release.
-    assert!(size_of::<Self>() == size_of::<Self::Int>());
-    if Self::MIN_VALUE <= value && value <= Self::MAX_VALUE {
-      // SAFETY: We've checked their bounds (and their size, even though
-      // they've sworn under the Oath Of Unsafe Rust that that already
-      // matched) so this is allowed by `Contiguous`'s unsafe contract.
-      //
-      // So, the `transmute!`. ideally we'd use transmute here, which
-      // is more obviously safe. Sadly, we can't, as these types still
-      // have unspecified sizes.
-      Some(unsafe { transmute!(value) })
-    } else {
-      None
-    }
-  }
-
-  /// Perform the conversion from `C` into the underlying integral type. This
-  /// mostly exists otherwise generic code would need unsafe for the `value as
-  /// integer`
-  ///
-  /// This is a trait method so that you can write `value.into_integer()` in
-  /// your code. It is a contract of this trait that if you implement
-  /// `Contiguous` on your type you **must not** override this method.
-  ///
-  /// # Panics
-  ///
-  /// We will not panic for any correct implementation of `Contiguous`, but
-  /// *may* panic if we detect an incorrect one.
-  ///
-  /// This is undefined behavior regardless, so it could have been the nasal
-  /// demons at that point anyway ;).
-  #[inline]
-  fn into_integer(self) -> Self::Int {
-    // Guard against an illegal implementation of Contiguous. Annoyingly we
-    // can't rely on `transmute` to do the size check for us (see
-    // `from_integer's comment`), but whatever, this gets compiled into
-    // nothing in release. Note that we don't check the result of cast
-    assert!(size_of::<Self>() == size_of::<Self::Int>());
-
-    // SAFETY: The unsafe contract requires that these have identical
-    // representations, and that the range be entirely valid. Using
-    // transmute! instead of transmute here is annoying, but is required
-    // as `Self` and `Self::Int` have unspecified sizes still.
-    unsafe { transmute!(self) }
-  }
-}
-
-macro_rules! impl_contiguous {
-  ($($src:ty as $repr:ident in [$min:expr, $max:expr];)*) => {$(
-    unsafe impl Contiguous for $src {
-      type Int = $repr;
-      const MAX_VALUE: $repr = $max;
-      const MIN_VALUE: $repr = $min;
-    }
-  )*};
-}
-
-impl_contiguous! {
-  bool as u8 in [0, 1];
-
-  u8 as u8 in [0, u8::max_value()];
-  u16 as u16 in [0, u16::max_value()];
-  u32 as u32 in [0, u32::max_value()];
-  u64 as u64 in [0, u64::max_value()];
-  u128 as u128 in [0, u128::max_value()];
-  usize as usize in [0, usize::max_value()];
-
-  i8 as i8 in [i8::min_value(), i8::max_value()];
-  i16 as i16 in [i16::min_value(), i16::max_value()];
-  i32 as i32 in [i32::min_value(), i32::max_value()];
-  i64 as i64 in [i64::min_value(), i64::max_value()];
-  i128 as i128 in [i128::min_value(), i128::max_value()];
-  isize as isize in [isize::min_value(), isize::max_value()];
-
-  NonZeroU8 as u8 in [1, u8::max_value()];
-  NonZeroU16 as u16 in [1, u16::max_value()];
-  NonZeroU32 as u32 in [1, u32::max_value()];
-  NonZeroU64 as u64 in [1, u64::max_value()];
-  NonZeroU128 as u128 in [1, u128::max_value()];
-  NonZeroUsize as usize in [1, usize::max_value()];
-}