Deleted vendor folder

4 files changed, 0 insertions, 3508 deletions

diff --git a/vendor/smallvec/src/arbitrary.rs b/vendor/smallvec/src/arbitrary.rs
deleted file mode 100644
index cbdfcb0..0000000
--- a/vendor/smallvec/src/arbitrary.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-use crate::{Array, SmallVec};
-use arbitrary::{Arbitrary, Unstructured};
-
-impl<'a, A: Array> Arbitrary<'a> for SmallVec<A>
-where
-    <A as Array>::Item: Arbitrary<'a>,
-{
-    fn arbitrary(u: &mut Unstructured<'a>) -> arbitrary::Result<Self> {
-        u.arbitrary_iter()?.collect()
-    }
-
-    fn arbitrary_take_rest(u: Unstructured<'a>) -> arbitrary::Result<Self> {
-        u.arbitrary_take_rest_iter()?.collect()
-    }
-
-    fn size_hint(depth: usize) -> (usize, Option<usize>) {
-        arbitrary::size_hint::and(<usize as Arbitrary>::size_hint(depth), (0, None))
-    }
-}
diff --git a/vendor/smallvec/src/lib.rs b/vendor/smallvec/src/lib.rs
deleted file mode 100644
index f9a6c8a..0000000
--- a/vendor/smallvec/src/lib.rs
+++ /dev/null
@@ -1,2457 +0,0 @@
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! Small vectors in various sizes. These store a certain number of elements inline, and fall back
-//! to the heap for larger allocations.  This can be a useful optimization for improving cache
-//! locality and reducing allocator traffic for workloads that fit within the inline buffer.
-//!
-//! ## `no_std` support
-//!
-//! By default, `smallvec` does not depend on `std`.  However, the optional
-//! `write` feature implements the `std::io::Write` trait for vectors of `u8`.
-//! When this feature is enabled, `smallvec` depends on `std`.
-//!
-//! ## Optional features
-//!
-//! ### `serde`
-//!
-//! When this optional dependency is enabled, `SmallVec` implements the `serde::Serialize` and
-//! `serde::Deserialize` traits.
-//!
-//! ### `write`
-//!
-//! When this feature is enabled, `SmallVec<[u8; _]>` implements the `std::io::Write` trait.
-//! This feature is not compatible with `#![no_std]` programs.
-//!
-//! ### `union`
-//!
-//! **This feature requires Rust 1.49.**
-//!
-//! When the `union` feature is enabled `smallvec` will track its state (inline or spilled)
-//! without the use of an enum tag, reducing the size of the `smallvec` by one machine word.
-//! This means that there is potentially no space overhead compared to `Vec`.
-//! Note that `smallvec` can still be larger than `Vec` if the inline buffer is larger than two
-//! machine words.
-//!
-//! To use this feature add `features = ["union"]` in the `smallvec` section of Cargo.toml.
-//! Note that this feature requires Rust 1.49.
-//!
-//! Tracking issue: [rust-lang/rust#55149](https://github.com/rust-lang/rust/issues/55149)
-//!
-//! ### `const_generics`
-//!
-//! **This feature requires Rust 1.51.**
-//!
-//! When this feature is enabled, `SmallVec` works with any arrays of any size, not just a fixed
-//! list of sizes.
-//!
-//! ### `const_new`
-//!
-//! **This feature requires Rust 1.51.**
-//!
-//! This feature exposes the functions [`SmallVec::new_const`], [`SmallVec::from_const`], and [`smallvec_inline`] which enables the `SmallVec` to be initialized from a const context.
-//! For details, see the
-//! [Rust Reference](https://doc.rust-lang.org/reference/const_eval.html#const-functions).
-//!
-//! ### `drain_filter`
-//!
-//! **This feature is unstable.** It may change to match the unstable `drain_filter` method in libstd.
-//!
-//! Enables the `drain_filter` method, which produces an iterator that calls a user-provided
-//! closure to determine which elements of the vector to remove and yield from the iterator.
-//!
-//! ### `drain_keep_rest`
-//!
-//! **This feature is unstable.** It may change to match the unstable `drain_keep_rest` method in libstd.
-//!
-//! Enables the `DrainFilter::keep_rest` method.
-//!
-//! ### `specialization`
-//!
-//! **This feature is unstable and requires a nightly build of the Rust toolchain.**
-//!
-//! When this feature is enabled, `SmallVec::from(slice)` has improved performance for slices
-//! of `Copy` types.  (Without this feature, you can use `SmallVec::from_slice` to get optimal
-//! performance for `Copy` types.)
-//!
-//! Tracking issue: [rust-lang/rust#31844](https://github.com/rust-lang/rust/issues/31844)
-//!
-//! ### `may_dangle`
-//!
-//! **This feature is unstable and requires a nightly build of the Rust toolchain.**
-//!
-//! This feature makes the Rust compiler less strict about use of vectors that contain borrowed
-//! references. For details, see the
-//! [Rustonomicon](https://doc.rust-lang.org/1.42.0/nomicon/dropck.html#an-escape-hatch).
-//!
-//! Tracking issue: [rust-lang/rust#34761](https://github.com/rust-lang/rust/issues/34761)
-
-#![no_std]
-#![cfg_attr(docsrs, feature(doc_cfg))]
-#![cfg_attr(feature = "specialization", allow(incomplete_features))]
-#![cfg_attr(feature = "specialization", feature(specialization))]
-#![cfg_attr(feature = "may_dangle", feature(dropck_eyepatch))]
-#![cfg_attr(
-    feature = "debugger_visualizer",
-    feature(debugger_visualizer),
-    debugger_visualizer(natvis_file = "../debug_metadata/smallvec.natvis")
-)]
-#![deny(missing_docs)]
-
-#[doc(hidden)]
-pub extern crate alloc;
-
-#[cfg(any(test, feature = "write"))]
-extern crate std;
-
-#[cfg(test)]
-mod tests;
-
-#[allow(deprecated)]
-use alloc::alloc::{Layout, LayoutErr};
-use alloc::boxed::Box;
-use alloc::{vec, vec::Vec};
-use core::borrow::{Borrow, BorrowMut};
-use core::cmp;
-use core::fmt;
-use core::hash::{Hash, Hasher};
-use core::hint::unreachable_unchecked;
-use core::iter::{repeat, FromIterator, FusedIterator, IntoIterator};
-use core::mem;
-use core::mem::MaybeUninit;
-use core::ops::{self, Range, RangeBounds};
-use core::ptr::{self, NonNull};
-use core::slice::{self, SliceIndex};
-
-#[cfg(feature = "serde")]
-use serde::{
-    de::{Deserialize, Deserializer, SeqAccess, Visitor},
-    ser::{Serialize, SerializeSeq, Serializer},
-};
-
-#[cfg(feature = "serde")]
-use core::marker::PhantomData;
-
-#[cfg(feature = "write")]
-use std::io;
-
-#[cfg(feature = "drain_keep_rest")]
-use core::mem::ManuallyDrop;
-
-/// Creates a [`SmallVec`] containing the arguments.
-///
-/// `smallvec!` allows `SmallVec`s to be defined with the same syntax as array expressions.
-/// There are two forms of this macro:
-///
-/// - Create a [`SmallVec`] containing a given list of elements:
-///
-/// ```
-/// # use smallvec::{smallvec, SmallVec};
-/// # fn main() {
-/// let v: SmallVec<[_; 128]> = smallvec![1, 2, 3];
-/// assert_eq!(v[0], 1);
-/// assert_eq!(v[1], 2);
-/// assert_eq!(v[2], 3);
-/// # }
-/// ```
-///
-/// - Create a [`SmallVec`] from a given element and size:
-///
-/// ```
-/// # use smallvec::{smallvec, SmallVec};
-/// # fn main() {
-/// let v: SmallVec<[_; 0x8000]> = smallvec![1; 3];
-/// assert_eq!(v, SmallVec::from_buf([1, 1, 1]));
-/// # }
-/// ```
-///
-/// Note that unlike array expressions this syntax supports all elements
-/// which implement [`Clone`] and the number of elements doesn't have to be
-/// a constant.
-///
-/// This will use `clone` to duplicate an expression, so one should be careful
-/// using this with types having a nonstandard `Clone` implementation. For
-/// example, `smallvec![Rc::new(1); 5]` will create a vector of five references
-/// to the same boxed integer value, not five references pointing to independently
-/// boxed integers.
-
-#[macro_export]
-macro_rules! smallvec {
-    // count helper: transform any expression into 1
-    (@one $x:expr) => (1usize);
-    ($elem:expr; $n:expr) => ({
-        $crate::SmallVec::from_elem($elem, $n)
-    });
-    ($($x:expr),*$(,)*) => ({
-        let count = 0usize $(+ $crate::smallvec!(@one $x))*;
-        #[allow(unused_mut)]
-        let mut vec = $crate::SmallVec::new();
-        if count <= vec.inline_size() {
-            $(vec.push($x);)*
-            vec
-        } else {
-            $crate::SmallVec::from_vec($crate::alloc::vec![$($x,)*])
-        }
-    });
-}
-
-/// Creates an inline [`SmallVec`] containing the arguments. This macro is enabled by the feature `const_new`.
-///
-/// `smallvec_inline!` allows `SmallVec`s to be defined with the same syntax as array expressions in `const` contexts.
-/// The inline storage `A` will always be an array of the size specified by the arguments.
-/// There are two forms of this macro:
-///
-/// - Create a [`SmallVec`] containing a given list of elements:
-///
-/// ```
-/// # use smallvec::{smallvec_inline, SmallVec};
-/// # fn main() {
-/// const V: SmallVec<[i32; 3]> = smallvec_inline![1, 2, 3];
-/// assert_eq!(V[0], 1);
-/// assert_eq!(V[1], 2);
-/// assert_eq!(V[2], 3);
-/// # }
-/// ```
-///
-/// - Create a [`SmallVec`] from a given element and size:
-///
-/// ```
-/// # use smallvec::{smallvec_inline, SmallVec};
-/// # fn main() {
-/// const V: SmallVec<[i32; 3]> = smallvec_inline![1; 3];
-/// assert_eq!(V, SmallVec::from_buf([1, 1, 1]));
-/// # }
-/// ```
-///
-/// Note that the behavior mimics that of array expressions, in contrast to [`smallvec`].
-#[cfg(feature = "const_new")]
-#[cfg_attr(docsrs, doc(cfg(feature = "const_new")))]
-#[macro_export]
-macro_rules! smallvec_inline {
-    // count helper: transform any expression into 1
-    (@one $x:expr) => (1usize);
-    ($elem:expr; $n:expr) => ({
-        $crate::SmallVec::<[_; $n]>::from_const([$elem; $n])
-    });
-    ($($x:expr),+ $(,)?) => ({
-        const N: usize = 0usize $(+ $crate::smallvec_inline!(@one $x))*;
-        $crate::SmallVec::<[_; N]>::from_const([$($x,)*])
-    });
-}
-
-/// `panic!()` in debug builds, optimization hint in release.
-#[cfg(not(feature = "union"))]
-macro_rules! debug_unreachable {
-    () => {
-        debug_unreachable!("entered unreachable code")
-    };
-    ($e:expr) => {
-        if cfg!(debug_assertions) {
-            panic!($e);
-        } else {
-            unreachable_unchecked();
-        }
-    };
-}
-
-/// Trait to be implemented by a collection that can be extended from a slice
-///
-/// ## Example
-///
-/// ```rust
-/// use smallvec::{ExtendFromSlice, SmallVec};
-///
-/// fn initialize<V: ExtendFromSlice<u8>>(v: &mut V) {
-///     v.extend_from_slice(b"Test!");
-/// }
-///
-/// let mut vec = Vec::new();
-/// initialize(&mut vec);
-/// assert_eq!(&vec, b"Test!");
-///
-/// let mut small_vec = SmallVec::<[u8; 8]>::new();
-/// initialize(&mut small_vec);
-/// assert_eq!(&small_vec as &[_], b"Test!");
-/// ```
-#[doc(hidden)]
-#[deprecated]
-pub trait ExtendFromSlice<T> {
-    /// Extends a collection from a slice of its element type
-    fn extend_from_slice(&mut self, other: &[T]);
-}
-
-#[allow(deprecated)]
-impl<T: Clone> ExtendFromSlice<T> for Vec<T> {
-    fn extend_from_slice(&mut self, other: &[T]) {
-        Vec::extend_from_slice(self, other)
-    }
-}
-
-/// Error type for APIs with fallible heap allocation
-#[derive(Debug)]
-pub enum CollectionAllocErr {
-    /// Overflow `usize::MAX` or other error during size computation
-    CapacityOverflow,
-    /// The allocator return an error
-    AllocErr {
-        /// The layout that was passed to the allocator
-        layout: Layout,
-    },
-}
-
-impl fmt::Display for CollectionAllocErr {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "Allocation error: {:?}", self)
-    }
-}
-
-#[allow(deprecated)]
-impl From<LayoutErr> for CollectionAllocErr {
-    fn from(_: LayoutErr) -> Self {
-        CollectionAllocErr::CapacityOverflow
-    }
-}
-
-fn infallible<T>(result: Result<T, CollectionAllocErr>) -> T {
-    match result {
-        Ok(x) => x,
-        Err(CollectionAllocErr::CapacityOverflow) => panic!("capacity overflow"),
-        Err(CollectionAllocErr::AllocErr { layout }) => alloc::alloc::handle_alloc_error(layout),
-    }
-}
-
-/// FIXME: use `Layout::array` when we require a Rust version where it’s stable
-/// <https://github.com/rust-lang/rust/issues/55724>
-fn layout_array<T>(n: usize) -> Result<Layout, CollectionAllocErr> {
-    let size = mem::size_of::<T>()
-        .checked_mul(n)
-        .ok_or(CollectionAllocErr::CapacityOverflow)?;
-    let align = mem::align_of::<T>();
-    Layout::from_size_align(size, align).map_err(|_| CollectionAllocErr::CapacityOverflow)
-}
-
-unsafe fn deallocate<T>(ptr: NonNull<T>, capacity: usize) {
-    // This unwrap should succeed since the same did when allocating.
-    let layout = layout_array::<T>(capacity).unwrap();
-    alloc::alloc::dealloc(ptr.as_ptr() as *mut u8, layout)
-}
-
-/// An iterator that removes the items from a `SmallVec` and yields them by value.
-///
-/// Returned from [`SmallVec::drain`][1].
-///
-/// [1]: struct.SmallVec.html#method.drain
-pub struct Drain<'a, T: 'a + Array> {
-    tail_start: usize,
-    tail_len: usize,
-    iter: slice::Iter<'a, T::Item>,
-    vec: NonNull<SmallVec<T>>,
-}
-
-impl<'a, T: 'a + Array> fmt::Debug for Drain<'a, T>
-where
-    T::Item: fmt::Debug,
-{
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.debug_tuple("Drain").field(&self.iter.as_slice()).finish()
-    }
-}
-
-unsafe impl<'a, T: Sync + Array> Sync for Drain<'a, T> {}
-unsafe impl<'a, T: Send + Array> Send for Drain<'a, T> {}
-
-impl<'a, T: 'a + Array> Iterator for Drain<'a, T> {
-    type Item = T::Item;
-
-    #[inline]
-    fn next(&mut self) -> Option<T::Item> {
-        self.iter
-            .next()
-            .map(|reference| unsafe { ptr::read(reference) })
-    }
-
-    #[inline]
-    fn size_hint(&self) -> (usize, Option<usize>) {
-        self.iter.size_hint()
-    }
-}
-
-impl<'a, T: 'a + Array> DoubleEndedIterator for Drain<'a, T> {
-    #[inline]
-    fn next_back(&mut self) -> Option<T::Item> {
-        self.iter
-            .next_back()
-            .map(|reference| unsafe { ptr::read(reference) })
-    }
-}
-
-impl<'a, T: Array> ExactSizeIterator for Drain<'a, T> {
-    #[inline]
-    fn len(&self) -> usize {
-        self.iter.len()
-    }
-}
-
-impl<'a, T: Array> FusedIterator for Drain<'a, T> {}
-
-impl<'a, T: 'a + Array> Drop for Drain<'a, T> {
-    fn drop(&mut self) {
-        self.for_each(drop);
-
-        if self.tail_len > 0 {
-            unsafe {
-                let source_vec = self.vec.as_mut();
-
-                // memmove back untouched tail, update to new length
-                let start = source_vec.len();
-                let tail = self.tail_start;
-                if tail != start {
-                    // as_mut_ptr creates a &mut, invalidating other pointers.
-                    // This pattern avoids calling it with a pointer already present.
-                    let ptr = source_vec.as_mut_ptr();
-                    let src = ptr.add(tail);
-                    let dst = ptr.add(start);
-                    ptr::copy(src, dst, self.tail_len);
-                }
-                source_vec.set_len(start + self.tail_len);
-            }
-        }
-    }
-}
-
-#[cfg(feature = "drain_filter")]
-/// An iterator which uses a closure to determine if an element should be removed.
-///
-/// Returned from [`SmallVec::drain_filter`][1].
-///
-/// [1]: struct.SmallVec.html#method.drain_filter
-pub struct DrainFilter<'a, T, F>
-where
-    F: FnMut(&mut T::Item) -> bool,
-    T: Array,
-{
-    vec: &'a mut SmallVec<T>,
-    /// The index of the item that will be inspected by the next call to `next`.
-    idx: usize,
-    /// The number of items that have been drained (removed) thus far.
-    del: usize,
-    /// The original length of `vec` prior to draining.
-    old_len: usize,
-    /// The filter test predicate.
-    pred: F,
-    /// A flag that indicates a panic has occurred in the filter test predicate.
-    /// This is used as a hint in the drop implementation to prevent consumption
-    /// of the remainder of the `DrainFilter`. Any unprocessed items will be
-    /// backshifted in the `vec`, but no further items will be dropped or
-    /// tested by the filter predicate.
-    panic_flag: bool,
-}
-
-#[cfg(feature = "drain_filter")]
-impl <T, F> fmt::Debug for DrainFilter<'_, T, F>
-where
-    F: FnMut(&mut T::Item) -> bool,
-    T: Array,
-    T::Item: fmt::Debug,
-{
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.debug_tuple("DrainFilter").field(&self.vec.as_slice()).finish()
-    }
-}
-
-#[cfg(feature = "drain_filter")]
-impl <T, F> Iterator for DrainFilter<'_, T, F>
-where
-    F: FnMut(&mut T::Item) -> bool,
-    T: Array,
-{
-    type Item = T::Item;
-
-    fn next(&mut self) -> Option<T::Item>
-    {
-        unsafe {
-            while self.idx < self.old_len {
-                let i = self.idx;
-                let v = slice::from_raw_parts_mut(self.vec.as_mut_ptr(), self.old_len);
-                self.panic_flag = true;
-                let drained = (self.pred)(&mut v[i]);
-                self.panic_flag = false;
-                // Update the index *after* the predicate is called. If the index
-                // is updated prior and the predicate panics, the element at this
-                // index would be leaked.
-                self.idx += 1;
-                if drained {
-                    self.del += 1;
-                    return Some(ptr::read(&v[i]));
-                } else if self.del > 0 {
-                    let del = self.del;
-                    let src: *const Self::Item = &v[i];
-                    let dst: *mut Self::Item = &mut v[i - del];
-                    ptr::copy_nonoverlapping(src, dst, 1);
-                }
-            }
-            None
-        }
-    }
-
-    fn size_hint(&self) -> (usize, Option<usize>) {
-        (0, Some(self.old_len - self.idx))
-    }
-}
-
-#[cfg(feature = "drain_filter")]
-impl <T, F> Drop for DrainFilter<'_, T, F>
-where
-    F: FnMut(&mut T::Item) -> bool,
-    T: Array,
-{
-    fn drop(&mut self) {
-        struct BackshiftOnDrop<'a, 'b, T, F>
-        where
-            F: FnMut(&mut T::Item) -> bool,
-            T: Array
-        {
-            drain: &'b mut DrainFilter<'a, T, F>,
-        }
-
-        impl<'a, 'b, T, F> Drop for BackshiftOnDrop<'a, 'b, T, F>
-        where
-            F: FnMut(&mut T::Item) -> bool,
-            T: Array
-        {
-            fn drop(&mut self) {
-                unsafe {
-                    if self.drain.idx < self.drain.old_len && self.drain.del > 0 {
-                        // This is a pretty messed up state, and there isn't really an
-                        // obviously right thing to do. We don't want to keep trying
-                        // to execute `pred`, so we just backshift all the unprocessed
-                        // elements and tell the vec that they still exist. The backshift
-                        // is required to prevent a double-drop of the last successfully
-                        // drained item prior to a panic in the predicate.
-                        let ptr = self.drain.vec.as_mut_ptr();
-                        let src = ptr.add(self.drain.idx);
-                        let dst = src.sub(self.drain.del);
-                        let tail_len = self.drain.old_len - self.drain.idx;
-                        src.copy_to(dst, tail_len);
-                    }
-                    self.drain.vec.set_len(self.drain.old_len - self.drain.del);
-                }
-            }
-        }
-
-        let backshift = BackshiftOnDrop { drain: self };
-
-        // Attempt to consume any remaining elements if the filter predicate
-        // has not yet panicked. We'll backshift any remaining elements
-        // whether we've already panicked or if the consumption here panics.
-        if !backshift.drain.panic_flag {
-            backshift.drain.for_each(drop);
-        }
-    }
-}
-
-#[cfg(feature = "drain_keep_rest")]
-impl <T, F> DrainFilter<'_, T, F>
-where
-    F: FnMut(&mut T::Item) -> bool,
-    T: Array
-{
-    /// Keep unyielded elements in the source `Vec`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// # use smallvec::{smallvec, SmallVec};
-    ///
-    /// let mut vec: SmallVec<[char; 2]> = smallvec!['a', 'b', 'c'];
-    /// let mut drain = vec.drain_filter(|_| true);
-    ///
-    /// assert_eq!(drain.next().unwrap(), 'a');
-    ///
-    /// // This call keeps 'b' and 'c' in the vec.
-    /// drain.keep_rest();
-    ///
-    /// // If we wouldn't call `keep_rest()`,
-    /// // `vec` would be empty.
-    /// assert_eq!(vec, SmallVec::<[char; 2]>::from_slice(&['b', 'c']));
-    /// ```
-    pub fn keep_rest(self)
-    {
-        // At this moment layout looks like this:
-        //
-        //  _____________________/-- old_len
-        // /                     \
-        // [kept] [yielded] [tail]
-        //        \_______/ ^-- idx
-        //                \-- del
-        //
-        // Normally `Drop` impl would drop [tail] (via .for_each(drop), ie still calling `pred`)
-        //
-        // 1. Move [tail] after [kept]
-        // 2. Update length of the original vec to `old_len - del`
-        //    a. In case of ZST, this is the only thing we want to do
-        // 3. Do *not* drop self, as everything is put in a consistent state already, there is nothing to do
-        let mut this = ManuallyDrop::new(self);
-
-        unsafe {
-            // ZSTs have no identity, so we don't need to move them around.
-            let needs_move = mem::size_of::<T>() != 0;
-
-            if needs_move && this.idx < this.old_len && this.del > 0 {
-                let ptr = this.vec.as_mut_ptr();
-                let src = ptr.add(this.idx);
-                let dst = src.sub(this.del);
-                let tail_len = this.old_len - this.idx;
-                src.copy_to(dst, tail_len);
-            }
-
-            let new_len = this.old_len - this.del;
-            this.vec.set_len(new_len);
-        }
-    }
-}
-
-#[cfg(feature = "union")]
-union SmallVecData<A: Array> {
-    inline: core::mem::ManuallyDrop<MaybeUninit<A>>,
-    heap: (NonNull<A::Item>, usize),
-}
-
-#[cfg(all(feature = "union", feature = "const_new"))]
-impl<T, const N: usize> SmallVecData<[T; N]> {
-    #[cfg_attr(docsrs, doc(cfg(feature = "const_new")))]
-    #[inline]
-    const fn from_const(inline: MaybeUninit<[T; N]>) -> Self {
-        SmallVecData {
-            inline: core::mem::ManuallyDrop::new(inline),
-        }
-    }
-}
-
-#[cfg(feature = "union")]
-impl<A: Array> SmallVecData<A> {
-    #[inline]
-    unsafe fn inline(&self) -> ConstNonNull<A::Item> {
-        ConstNonNull::new(self.inline.as_ptr() as *const A::Item).unwrap()
-    }
-    #[inline]
-    unsafe fn inline_mut(&mut self) -> NonNull<A::Item> {
-        NonNull::new(self.inline.as_mut_ptr() as *mut A::Item).unwrap()
-    }
-    #[inline]
-    fn from_inline(inline: MaybeUninit<A>) -> SmallVecData<A> {
-        SmallVecData {
-            inline: core::mem::ManuallyDrop::new(inline),
-        }
-    }
-    #[inline]
-    unsafe fn into_inline(self) -> MaybeUninit<A> {
-        core::mem::ManuallyDrop::into_inner(self.inline)
-    }
-    #[inline]
-    unsafe fn heap(&self) -> (ConstNonNull<A::Item>, usize) {
-        (ConstNonNull(self.heap.0), self.heap.1)
-    }
-    #[inline]
-    unsafe fn heap_mut(&mut self) -> (NonNull<A::Item>, &mut usize) {
-        let h = &mut self.heap;
-        (h.0, &mut h.1)
-    }
-    #[inline]
-    fn from_heap(ptr: NonNull<A::Item>, len: usize) -> SmallVecData<A> {
-        SmallVecData { heap: (ptr, len) }
-    }
-}
-
-#[cfg(not(feature = "union"))]
-enum SmallVecData<A: Array> {
-    Inline(MaybeUninit<A>),
-    // Using NonNull and NonZero here allows to reduce size of `SmallVec`.
-    Heap {
-        // Since we never allocate on heap
-        // unless our capacity is bigger than inline capacity
-        // heap capacity cannot be less than 1.
-        // Therefore, pointer cannot be null too.
-        ptr: NonNull<A::Item>,
-        len: usize,
-    },
-}
-
-#[cfg(all(not(feature = "union"), feature = "const_new"))]
-impl<T, const N: usize> SmallVecData<[T; N]> {
-    #[cfg_attr(docsrs, doc(cfg(feature = "const_new")))]
-    #[inline]
-    const fn from_const(inline: MaybeUninit<[T; N]>) -> Self {
-        SmallVecData::Inline(inline)
-    }
-}
-
-#[cfg(not(feature = "union"))]
-impl<A: Array> SmallVecData<A> {
-    #[inline]
-    unsafe fn inline(&self) -> ConstNonNull<A::Item> {
-        match self {
-            SmallVecData::Inline(a) => ConstNonNull::new(a.as_ptr() as *const A::Item).unwrap(),
-            _ => debug_unreachable!(),
-        }
-    }
-    #[inline]
-    unsafe fn inline_mut(&mut self) -> NonNull<A::Item> {
-        match self {
-            SmallVecData::Inline(a) => NonNull::new(a.as_mut_ptr() as *mut A::Item).unwrap(),
-            _ => debug_unreachable!(),
-        }
-    }
-    #[inline]
-    fn from_inline(inline: MaybeUninit<A>) -> SmallVecData<A> {
-        SmallVecData::Inline(inline)
-    }
-    #[inline]
-    unsafe fn into_inline(self) -> MaybeUninit<A> {
-        match self {
-            SmallVecData::Inline(a) => a,
-            _ => debug_unreachable!(),
-        }
-    }
-    #[inline]
-    unsafe fn heap(&self) -> (ConstNonNull<A::Item>, usize) {
-        match self {
-            SmallVecData::Heap { ptr, len } => (ConstNonNull(*ptr), *len),
-            _ => debug_unreachable!(),
-        }
-    }
-    #[inline]
-    unsafe fn heap_mut(&mut self) -> (NonNull<A::Item>, &mut usize) {
-        match self {
-            SmallVecData::Heap { ptr, len } => (*ptr, len),
-            _ => debug_unreachable!(),
-        }
-    }
-    #[inline]
-    fn from_heap(ptr: NonNull<A::Item>, len: usize) -> SmallVecData<A> {
-        SmallVecData::Heap { ptr, len }
-    }
-}
-
-unsafe impl<A: Array + Send> Send for SmallVecData<A> {}
-unsafe impl<A: Array + Sync> Sync for SmallVecData<A> {}
-
-/// A `Vec`-like container that can store a small number of elements inline.
-///
-/// `SmallVec` acts like a vector, but can store a limited amount of data inline within the
-/// `SmallVec` struct rather than in a separate allocation.  If the data exceeds this limit, the
-/// `SmallVec` will "spill" its data onto the heap, allocating a new buffer to hold it.
-///
-/// The amount of data that a `SmallVec` can store inline depends on its backing store. The backing
-/// store can be any type that implements the `Array` trait; usually it is a small fixed-sized
-/// array.  For example a `SmallVec<[u64; 8]>` can hold up to eight 64-bit integers inline.
-///
-/// ## Example
-///
-/// ```rust
-/// use smallvec::SmallVec;
-/// let mut v = SmallVec::<[u8; 4]>::new(); // initialize an empty vector
-///
-/// // The vector can hold up to 4 items without spilling onto the heap.
-/// v.extend(0..4);
-/// assert_eq!(v.len(), 4);
-/// assert!(!v.spilled());
-///
-/// // Pushing another element will force the buffer to spill:
-/// v.push(4);
-/// assert_eq!(v.len(), 5);
-/// assert!(v.spilled());
-/// ```
-pub struct SmallVec<A: Array> {
-    // The capacity field is used to determine which of the storage variants is active:
-    // If capacity <= Self::inline_capacity() then the inline variant is used and capacity holds the current length of the vector (number of elements actually in use).
-    // If capacity > Self::inline_capacity() then the heap variant is used and capacity holds the size of the memory allocation.
-    capacity: usize,
-    data: SmallVecData<A>,
-}
-
-impl<A: Array> SmallVec<A> {
-    /// Construct an empty vector
-    #[inline]
-    pub fn new() -> SmallVec<A> {
-        // Try to detect invalid custom implementations of `Array`. Hopefully,
-        // this check should be optimized away entirely for valid ones.
-        assert!(
-            mem::size_of::<A>() == A::size() * mem::size_of::<A::Item>()
-                && mem::align_of::<A>() >= mem::align_of::<A::Item>()
-        );
-        SmallVec {
-            capacity: 0,
-            data: SmallVecData::from_inline(MaybeUninit::uninit()),
-        }
-    }
-
-    /// Construct an empty vector with enough capacity pre-allocated to store at least `n`
-    /// elements.
-    ///
-    /// Will create a heap allocation only if `n` is larger than the inline capacity.
-    ///
-    /// ```
-    /// # use smallvec::SmallVec;
-    ///
-    /// let v: SmallVec<[u8; 3]> = SmallVec::with_capacity(100);
-    ///
-    /// assert!(v.is_empty());
-    /// assert!(v.capacity() >= 100);
-    /// ```
-    #[inline]
-    pub fn with_capacity(n: usize) -> Self {
-        let mut v = SmallVec::new();
-        v.reserve_exact(n);
-        v
-    }
-
-    /// Construct a new `SmallVec` from a `Vec<A::Item>`.
-    ///
-    /// Elements will be copied to the inline buffer if `vec.capacity() <= Self::inline_capacity()`.
-    ///
-    /// ```rust
-    /// use smallvec::SmallVec;
-    ///
-    /// let vec = vec![1, 2, 3, 4, 5];
-    /// let small_vec: SmallVec<[_; 3]> = SmallVec::from_vec(vec);
-    ///
-    /// assert_eq!(&*small_vec, &[1, 2, 3, 4, 5]);
-    /// ```
-    #[inline]
-    pub fn from_vec(mut vec: Vec<A::Item>) -> SmallVec<A> {
-        if vec.capacity() <= Self::inline_capacity() {
-            // Cannot use Vec with smaller capacity
-            // because we use value of `Self::capacity` field as indicator.
-            unsafe {
-                let mut data = SmallVecData::<A>::from_inline(MaybeUninit::uninit());
-                let len = vec.len();
-                vec.set_len(0);
-                ptr::copy_nonoverlapping(vec.as_ptr(), data.inline_mut().as_ptr(), len);
-
-                SmallVec {
-                    capacity: len,
-                    data,
-                }
-            }
-        } else {
-            let (ptr, cap, len) = (vec.as_mut_ptr(), vec.capacity(), vec.len());
-            mem::forget(vec);
-            let ptr = NonNull::new(ptr)
-                // See docs: https://doc.rust-lang.org/std/vec/struct.Vec.html#method.as_mut_ptr
-                .expect("Cannot be null by `Vec` invariant");
-
-            SmallVec {
-                capacity: cap,
-                data: SmallVecData::from_heap(ptr, len),
-            }
-        }
-    }
-
-    /// Constructs a new `SmallVec` on the stack from an `A` without
-    /// copying elements.
-    ///
-    /// ```rust
-    /// use smallvec::SmallVec;
-    ///
-    /// let buf = [1, 2, 3, 4, 5];
-    /// let small_vec: SmallVec<_> = SmallVec::from_buf(buf);
-    ///
-    /// assert_eq!(&*small_vec, &[1, 2, 3, 4, 5]);
-    /// ```
-    #[inline]
-    pub fn from_buf(buf: A) -> SmallVec<A> {
-        SmallVec {
-            capacity: A::size(),
-            data: SmallVecData::from_inline(MaybeUninit::new(buf)),
-        }
-    }
-
-    /// Constructs a new `SmallVec` on the stack from an `A` without
-    /// copying elements. Also sets the length, which must be less or
-    /// equal to the size of `buf`.
-    ///
-    /// ```rust
-    /// use smallvec::SmallVec;
-    ///
-    /// let buf = [1, 2, 3, 4, 5, 0, 0, 0];
-    /// let small_vec: SmallVec<_> = SmallVec::from_buf_and_len(buf, 5);
-    ///
-    /// assert_eq!(&*small_vec, &[1, 2, 3, 4, 5]);
-    /// ```
-    #[inline]
-    pub fn from_buf_and_len(buf: A, len: usize) -> SmallVec<A> {
-        assert!(len <= A::size());
-        unsafe { SmallVec::from_buf_and_len_unchecked(MaybeUninit::new(buf), len) }
-    }
-
-    /// Constructs a new `SmallVec` on the stack from an `A` without
-    /// copying elements. Also sets the length. The user is responsible
-    /// for ensuring that `len <= A::size()`.
-    ///
-    /// ```rust
-    /// use smallvec::SmallVec;
-    /// use std::mem::MaybeUninit;
-    ///
-    /// let buf = [1, 2, 3, 4, 5, 0, 0, 0];
-    /// let small_vec: SmallVec<_> = unsafe {
-    ///     SmallVec::from_buf_and_len_unchecked(MaybeUninit::new(buf), 5)
-    /// };
-    ///
-    /// assert_eq!(&*small_vec, &[1, 2, 3, 4, 5]);
-    /// ```
-    #[inline]
-    pub unsafe fn from_buf_and_len_unchecked(buf: MaybeUninit<A>, len: usize) -> SmallVec<A> {
-        SmallVec {
-            capacity: len,
-            data: SmallVecData::from_inline(buf),
-        }
-    }
-
-    /// Sets the length of a vector.
-    ///
-    /// This will explicitly set the size of the vector, without actually
-    /// modifying its buffers, so it is up to the caller to ensure that the
-    /// vector is actually the specified size.
-    pub unsafe fn set_len(&mut self, new_len: usize) {
-        let (_, len_ptr, _) = self.triple_mut();
-        *len_ptr = new_len;
-    }
-
-    /// The maximum number of elements this vector can hold inline
-    #[inline]
-    fn inline_capacity() -> usize {
-        if mem::size_of::<A::Item>() > 0 {
-            A::size()
-        } else {
-            // For zero-size items code like `ptr.add(offset)` always returns the same pointer.
-            // Therefore all items are at the same address,
-            // and any array size has capacity for infinitely many items.
-            // The capacity is limited by the bit width of the length field.
-            //
-            // `Vec` also does this:
-            // https://github.com/rust-lang/rust/blob/1.44.0/src/liballoc/raw_vec.rs#L186
-            //
-            // In our case, this also ensures that a smallvec of zero-size items never spills,
-            // and we never try to allocate zero bytes which `std::alloc::alloc` disallows.
-            core::usize::MAX
-        }
-    }
-
-    /// The maximum number of elements this vector can hold inline
-    #[inline]
-    pub fn inline_size(&self) -> usize {
-        Self::inline_capacity()
-    }
-
-    /// The number of elements stored in the vector
-    #[inline]
-    pub fn len(&self) -> usize {
-        self.triple().1
-    }
-
-    /// Returns `true` if the vector is empty
-    #[inline]
-    pub fn is_empty(&self) -> bool {
-        self.len() == 0
-    }
-
-    /// The number of items the vector can hold without reallocating
-    #[inline]
-    pub fn capacity(&self) -> usize {
-        self.triple().2
-    }
-
-    /// Returns a tuple with (data ptr, len, capacity)
-    /// Useful to get all `SmallVec` properties with a single check of the current storage variant.
-    #[inline]
-    fn triple(&self) -> (ConstNonNull<A::Item>, usize, usize) {
-        unsafe {
-            if self.spilled() {
-                let (ptr, len) = self.data.heap();
-                (ptr, len, self.capacity)
-            } else {
-                (self.data.inline(), self.capacity, Self::inline_capacity())
-            }
-        }
-    }
-
-    /// Returns a tuple with (data ptr, len ptr, capacity)
-    #[inline]
-    fn triple_mut(&mut self) -> (NonNull<A::Item>, &mut usize, usize) {
-        unsafe {
-            if self.spilled() {
-                let (ptr, len_ptr) = self.data.heap_mut();
-                (ptr, len_ptr, self.capacity)
-            } else {
-                (
-                    self.data.inline_mut(),
-                    &mut self.capacity,
-                    Self::inline_capacity(),
-                )
-            }
-        }
-    }
-
-    /// Returns `true` if the data has spilled into a separate heap-allocated buffer.
-    #[inline]
-    pub fn spilled(&self) -> bool {
-        self.capacity > Self::inline_capacity()
-    }
-
-    /// Creates a draining iterator that removes the specified range in the vector
-    /// and yields the removed items.
-    ///
-    /// Note 1: The element range is removed even if the iterator is only
-    /// partially consumed or not consumed at all.
-    ///
-    /// Note 2: It is unspecified how many elements are removed from the vector
-    /// if the `Drain` value is leaked.
-    ///
-    /// # Panics
-    ///
-    /// Panics if the starting point is greater than the end point or if
-    /// the end point is greater than the length of the vector.
-    pub fn drain<R>(&mut self, range: R) -> Drain<'_, A>
-    where
-        R: RangeBounds<usize>,
-    {
-        use core::ops::Bound::*;
-
-        let len = self.len();
-        let start = match range.start_bound() {
-            Included(&n) => n,
-            Excluded(&n) => n.checked_add(1).expect("Range start out of bounds"),
-            Unbounded => 0,
-        };
-        let end = match range.end_bound() {
-            Included(&n) => n.checked_add(1).expect("Range end out of bounds"),
-            Excluded(&n) => n,
-            Unbounded => len,
-        };
-
-        assert!(start <= end);
-        assert!(end <= len);
-
-        unsafe {
-            self.set_len(start);
-
-            let range_slice = slice::from_raw_parts(self.as_ptr().add(start), end - start);
-
-            Drain {
-                tail_start: end,
-                tail_len: len - end,
-                iter: range_slice.iter(),
-                // Since self is a &mut, passing it to a function would invalidate the slice iterator.
-                vec: NonNull::new_unchecked(self as *mut _),
-            }
-        }
-    }
-
-    #[cfg(feature = "drain_filter")]
-    /// Creates an iterator which uses a closure to determine if an element should be removed.
-    ///
-    /// If the closure returns true, the element is removed and yielded. If the closure returns
-    /// false, the element will remain in the vector and will not be yielded by the iterator.
-    ///
-    /// Using this method is equivalent to the following code:
-    /// ```
-    /// # use smallvec::SmallVec;
-    /// # let some_predicate = |x: &mut i32| { *x == 2 || *x == 3 || *x == 6 };
-    /// # let mut vec: SmallVec<[i32; 8]> = SmallVec::from_slice(&[1i32, 2, 3, 4, 5, 6]);
-    /// let mut i = 0;
-    /// while i < vec.len() {
-    ///     if some_predicate(&mut vec[i]) {
-    ///         let val = vec.remove(i);
-    ///         // your code here
-    ///     } else {
-    ///         i += 1;
-    ///     }
-    /// }
-    ///
-    /// # assert_eq!(vec, SmallVec::<[i32; 8]>::from_slice(&[1i32, 4, 5]));
-    /// ```
-    /// ///
-    /// But `drain_filter` is easier to use. `drain_filter` is also more efficient,
-    /// because it can backshift the elements of the array in bulk.
-    ///
-    /// Note that `drain_filter` also lets you mutate every element in the filter closure,
-    /// regardless of whether you choose to keep or remove it.
-    ///
-    /// # Examples
-    ///
-    /// Splitting an array into evens and odds, reusing the original allocation:
-    ///
-    /// ```
-    /// # use smallvec::SmallVec;
-    /// let mut numbers: SmallVec<[i32; 16]> = SmallVec::from_slice(&[1i32, 2, 3, 4, 5, 6, 8, 9, 11, 13, 14, 15]);
-    ///
-    /// let evens = numbers.drain_filter(|x| *x % 2 == 0).collect::<SmallVec<[i32; 16]>>();
-    /// let odds = numbers;
-    ///
-    /// assert_eq!(evens, SmallVec::<[i32; 16]>::from_slice(&[2i32, 4, 6, 8, 14]));
-    /// assert_eq!(odds, SmallVec::<[i32; 16]>::from_slice(&[1i32, 3, 5, 9, 11, 13, 15]));
-    /// ```
-    pub fn drain_filter<F>(&mut self, filter: F) -> DrainFilter<'_, A, F,>
-    where
-        F: FnMut(&mut A::Item) -> bool,
-    {
-        let old_len = self.len();
-
-        // Guard against us getting leaked (leak amplification)
-        unsafe {
-            self.set_len(0);
-        }
-
-        DrainFilter { vec: self, idx: 0, del: 0, old_len, pred: filter, panic_flag: false }
-    }
-
-    /// Append an item to the vector.
-    #[inline]
-    pub fn push(&mut self, value: A::Item) {
-        unsafe {
-            let (mut ptr, mut len, cap) = self.triple_mut();
-            if *len == cap {
-                self.reserve_one_unchecked();
-                let (heap_ptr, heap_len) = self.data.heap_mut();
-                ptr = heap_ptr;
-                len = heap_len;
-            }
-            ptr::write(ptr.as_ptr().add(*len), value);
-            *len += 1;
-        }
-    }
-
-    /// Remove an item from the end of the vector and return it, or None if empty.
-    #[inline]
-    pub fn pop(&mut self) -> Option<A::Item> {
-        unsafe {
-            let (ptr, len_ptr, _) = self.triple_mut();
-            let ptr: *const _ = ptr.as_ptr();
-            if *len_ptr == 0 {
-                return None;
-            }
-            let last_index = *len_ptr - 1;
-            *len_ptr = last_index;
-            Some(ptr::read(ptr.add(last_index)))
-        }
-    }
-
-    /// Moves all the elements of `other` into `self`, leaving `other` empty.
-    ///
-    /// # Example
-    ///
-    /// ```
-    /// # use smallvec::{SmallVec, smallvec};
-    /// let mut v0: SmallVec<[u8; 16]> = smallvec![1, 2, 3];
-    /// let mut v1: SmallVec<[u8; 32]> = smallvec![4, 5, 6];
-    /// v0.append(&mut v1);
-    /// assert_eq!(*v0, [1, 2, 3, 4, 5, 6]);
-    /// assert_eq!(*v1, []);
-    /// ```
-    pub fn append<B>(&mut self, other: &mut SmallVec<B>)
-    where
-        B: Array<Item = A::Item>,
-    {
-        self.extend(other.drain(..))
-    }
-
-    /// Re-allocate to set the capacity to `max(new_cap, inline_size())`.
-    ///
-    /// Panics if `new_cap` is less than the vector's length
-    /// or if the capacity computation overflows `usize`.
-    pub fn grow(&mut self, new_cap: usize) {
-        infallible(self.try_grow(new_cap))
-    }
-
-    /// Re-allocate to set the capacity to `max(new_cap, inline_size())`.
-    ///
-    /// Panics if `new_cap` is less than the vector's length
-    pub fn try_grow(&mut self, new_cap: usize) -> Result<(), CollectionAllocErr> {
-        unsafe {
-            let unspilled = !self.spilled();
-            let (ptr, &mut len, cap) = self.triple_mut();
-            assert!(new_cap >= len);
-            if new_cap <= Self::inline_capacity() {
-                if unspilled {
-                    return Ok(());
-                }
-                self.data = SmallVecData::from_inline(MaybeUninit::uninit());
-                ptr::copy_nonoverlapping(ptr.as_ptr(), self.data.inline_mut().as_ptr(), len);
-                self.capacity = len;
-                deallocate(ptr, cap);
-            } else if new_cap != cap {
-                let layout = layout_array::<A::Item>(new_cap)?;
-                debug_assert!(layout.size() > 0);
-                let new_alloc;
-                if unspilled {
-                    new_alloc = NonNull::new(alloc::alloc::alloc(layout))
-                        .ok_or(CollectionAllocErr::AllocErr { layout })?
-                        .cast();
-                    ptr::copy_nonoverlapping(ptr.as_ptr(), new_alloc.as_ptr(), len);
-                } else {
-                    // This should never fail since the same succeeded
-                    // when previously allocating `ptr`.
-                    let old_layout = layout_array::<A::Item>(cap)?;
-
-                    let new_ptr =
-                        alloc::alloc::realloc(ptr.as_ptr() as *mut u8, old_layout, layout.size());
-                    new_alloc = NonNull::new(new_ptr)
-                        .ok_or(CollectionAllocErr::AllocErr { layout })?
-                        .cast();
-                }
-                self.data = SmallVecData::from_heap(new_alloc, len);
-                self.capacity = new_cap;
-            }
-            Ok(())
-        }
-    }
-
-    /// Reserve capacity for `additional` more elements to be inserted.
-    ///
-    /// May reserve more space to avoid frequent reallocations.
-    ///
-    /// Panics if the capacity computation overflows `usize`.
-    #[inline]
-    pub fn reserve(&mut self, additional: usize) {
-        infallible(self.try_reserve(additional))
-    }
-
-    /// Internal method used to grow in push() and insert(), where we know already we have to grow.
-    #[cold]
-    fn reserve_one_unchecked(&mut self) {
-        debug_assert_eq!(self.len(), self.capacity());
-        let new_cap = self.len()
-            .checked_add(1)
-            .and_then(usize::checked_next_power_of_two)
-            .expect("capacity overflow");
-        infallible(self.try_grow(new_cap))
-    }
-
-    /// Reserve capacity for `additional` more elements to be inserted.
-    ///
-    /// May reserve more space to avoid frequent reallocations.
-    pub fn try_reserve(&mut self, additional: usize) -> Result<(), CollectionAllocErr> {
-        // prefer triple_mut() even if triple() would work so that the optimizer removes duplicated
-        // calls to it from callers.
-        let (_, &mut len, cap) = self.triple_mut();
-        if cap - len >= additional {
-            return Ok(());
-        }
-        let new_cap = len
-            .checked_add(additional)
-            .and_then(usize::checked_next_power_of_two)
-            .ok_or(CollectionAllocErr::CapacityOverflow)?;
-        self.try_grow(new_cap)
-    }
-
-    /// Reserve the minimum capacity for `additional` more elements to be inserted.
-    ///
-    /// Panics if the new capacity overflows `usize`.
-    pub fn reserve_exact(&mut self, additional: usize) {
-        infallible(self.try_reserve_exact(additional))
-    }
-
-    /// Reserve the minimum capacity for `additional` more elements to be inserted.
-    pub fn try_reserve_exact(&mut self, additional: usize) -> Result<(), CollectionAllocErr> {
-        let (_, &mut len, cap) = self.triple_mut();
-        if cap - len >= additional {
-            return Ok(());
-        }
-        let new_cap = len
-            .checked_add(additional)
-            .ok_or(CollectionAllocErr::CapacityOverflow)?;
-        self.try_grow(new_cap)
-    }
-
-    /// Shrink the capacity of the vector as much as possible.
-    ///
-    /// When possible, this will move data from an external heap buffer to the vector's inline
-    /// storage.
-    pub fn shrink_to_fit(&mut self) {
-        if !self.spilled() {
-            return;
-        }
-        let len = self.len();
-        if self.inline_size() >= len {
-            unsafe {
-                let (ptr, len) = self.data.heap();
-                self.data = SmallVecData::from_inline(MaybeUninit::uninit());
-                ptr::copy_nonoverlapping(ptr.as_ptr(), self.data.inline_mut().as_ptr(), len);
-                deallocate(ptr.0, self.capacity);
-                self.capacity = len;
-            }
-        } else if self.capacity() > len {
-            self.grow(len);
-        }
-    }
-
-    /// Shorten the vector, keeping the first `len` elements and dropping the rest.
-    ///
-    /// If `len` is greater than or equal to the vector's current length, this has no
-    /// effect.
-    ///
-    /// This does not re-allocate.  If you want the vector's capacity to shrink, call
-    /// `shrink_to_fit` after truncating.
-    pub fn truncate(&mut self, len: usize) {
-        unsafe {
-            let (ptr, len_ptr, _) = self.triple_mut();
-            let ptr = ptr.as_ptr();
-            while len < *len_ptr {
-                let last_index = *len_ptr - 1;
-                *len_ptr = last_index;
-                ptr::drop_in_place(ptr.add(last_index));
-            }
-        }
-    }
-
-    /// Extracts a slice containing the entire vector.
-    ///
-    /// Equivalent to `&s[..]`.
-    pub fn as_slice(&self) -> &[A::Item] {
-        self
-    }
-
-    /// Extracts a mutable slice of the entire vector.
-    ///
-    /// Equivalent to `&mut s[..]`.
-    pub fn as_mut_slice(&mut self) -> &mut [A::Item] {
-        self
-    }
-
-    /// Remove the element at position `index`, replacing it with the last element.
-    ///
-    /// This does not preserve ordering, but is O(1).
-    ///
-    /// Panics if `index` is out of bounds.
-    #[inline]
-    pub fn swap_remove(&mut self, index: usize) -> A::Item {
-        let len = self.len();
-        self.swap(len - 1, index);
-        self.pop()
-            .unwrap_or_else(|| unsafe { unreachable_unchecked() })
-    }
-
-    /// Remove all elements from the vector.
-    #[inline]
-    pub fn clear(&mut self) {
-        self.truncate(0);
-    }
-
-    /// Remove and return the element at position `index`, shifting all elements after it to the
-    /// left.
-    ///
-    /// Panics if `index` is out of bounds.
-    pub fn remove(&mut self, index: usize) -> A::Item {
-        unsafe {
-            let (ptr, len_ptr, _) = self.triple_mut();
-            let len = *len_ptr;
-            assert!(index < len);
-            *len_ptr = len - 1;
-            let ptr = ptr.as_ptr().add(index);
-            let item = ptr::read(ptr);
-            ptr::copy(ptr.add(1), ptr, len - index - 1);
-            item
-        }
-    }
-
-    /// Insert an element at position `index`, shifting all elements after it to the right.
-    ///
-    /// Panics if `index > len`.
-    pub fn insert(&mut self, index: usize, element: A::Item) {
-        unsafe {
-            let (mut ptr, mut len_ptr, cap) = self.triple_mut();
-            if *len_ptr == cap {
-                self.reserve_one_unchecked();
-                let (heap_ptr, heap_len_ptr) = self.data.heap_mut();
-                ptr = heap_ptr;
-                len_ptr = heap_len_ptr;
-            }
-            let mut ptr = ptr.as_ptr();
-            let len = *len_ptr;
-            ptr = ptr.add(index);
-            if index < len {
-                ptr::copy(ptr, ptr.add(1), len - index);
-            } else if index == len {
-                // No elements need shifting.
-            } else {
-                panic!("index exceeds length");
-            }
-            *len_ptr = len + 1;
-            ptr::write(ptr, element);
-        }
-    }
-
-    /// Insert multiple elements at position `index`, shifting all following elements toward the
-    /// back.
-    pub fn insert_many<I: IntoIterator<Item = A::Item>>(&mut self, index: usize, iterable: I) {
-        let mut iter = iterable.into_iter();
-        if index == self.len() {
-            return self.extend(iter);
-        }
-
-        let (lower_size_bound, _) = iter.size_hint();
-        assert!(lower_size_bound <= core::isize::MAX as usize); // Ensure offset is indexable
-        assert!(index + lower_size_bound >= index); // Protect against overflow
-
-        let mut num_added = 0;
-        let old_len = self.len();
-        assert!(index <= old_len);
-
-        unsafe {
-            // Reserve space for `lower_size_bound` elements.
-            self.reserve(lower_size_bound);
-            let start = self.as_mut_ptr();
-            let ptr = start.add(index);
-
-            // Move the trailing elements.
-            ptr::copy(ptr, ptr.add(lower_size_bound), old_len - index);
-
-            // In case the iterator panics, don't double-drop the items we just copied above.
-            self.set_len(0);
-            let mut guard = DropOnPanic {
-                start,
-                skip: index..(index + lower_size_bound),
-                len: old_len + lower_size_bound,
-            };
-
-            // The set_len above invalidates the previous pointers, so we must re-create them.
-            let start = self.as_mut_ptr();
-            let ptr = start.add(index);
-
-            while num_added < lower_size_bound {
-                let element = match iter.next() {
-                    Some(x) => x,
-                    None => break,
-                };
-                let cur = ptr.add(num_added);
-                ptr::write(cur, element);
-                guard.skip.start += 1;
-                num_added += 1;
-            }
-
-            if num_added < lower_size_bound {
-                // Iterator provided fewer elements than the hint. Move the tail backward.
-                ptr::copy(
-                    ptr.add(lower_size_bound),
-                    ptr.add(num_added),
-                    old_len - index,
-                );
-            }
-            // There are no more duplicate or uninitialized slots, so the guard is not needed.
-            self.set_len(old_len + num_added);
-            mem::forget(guard);
-        }
-
-        // Insert any remaining elements one-by-one.
-        for element in iter {
-            self.insert(index + num_added, element);
-            num_added += 1;
-        }
-
-        struct DropOnPanic<T> {
-            start: *mut T,
-            skip: Range<usize>, // Space we copied-out-of, but haven't written-to yet.
-            len: usize,
-        }
-
-        impl<T> Drop for DropOnPanic<T> {
-            fn drop(&mut self) {
-                for i in 0..self.len {
-                    if !self.skip.contains(&i) {
-                        unsafe {
-                            ptr::drop_in_place(self.start.add(i));
-                        }
-                    }
-                }
-            }
-        }
-    }
-
-    /// Convert a `SmallVec` to a `Vec`, without reallocating if the `SmallVec` has already spilled onto
-    /// the heap.
-    pub fn into_vec(mut self) -> Vec<A::Item> {
-        if self.spilled() {
-            unsafe {
-                let (ptr, &mut len) = self.data.heap_mut();
-                let v = Vec::from_raw_parts(ptr.as_ptr(), len, self.capacity);
-                mem::forget(self);
-                v
-            }
-        } else {
-            self.into_iter().collect()
-        }
-    }
-
-    /// Converts a `SmallVec` into a `Box<[T]>` without reallocating if the `SmallVec` has already spilled
-    /// onto the heap.
-    ///
-    /// Note that this will drop any excess capacity.
-    pub fn into_boxed_slice(self) -> Box<[A::Item]> {
-        self.into_vec().into_boxed_slice()
-    }
-
-    /// Convert the `SmallVec` into an `A` if possible. Otherwise return `Err(Self)`.
-    ///
-    /// This method returns `Err(Self)` if the `SmallVec` is too short (and the `A` contains uninitialized elements),
-    /// or if the `SmallVec` is too long (and all the elements were spilled to the heap).
-    pub fn into_inner(self) -> Result<A, Self> {
-        if self.spilled() || self.len() != A::size() {
-            // Note: A::size, not Self::inline_capacity
-            Err(self)
-        } else {
-            unsafe {
-                let data = ptr::read(&self.data);
-                mem::forget(self);
-                Ok(data.into_inline().assume_init())
-            }
-        }
-    }
-
-    /// Retains only the elements specified by the predicate.
-    ///
-    /// In other words, remove all elements `e` such that `f(&e)` returns `false`.
-    /// This method operates in place and preserves the order of the retained
-    /// elements.
-    pub fn retain<F: FnMut(&mut A::Item) -> bool>(&mut self, mut f: F) {
-        let mut del = 0;
-        let len = self.len();
-        for i in 0..len {
-            if !f(&mut self[i]) {
-                del += 1;
-            } else if del > 0 {
-                self.swap(i - del, i);
-            }
-        }
-        self.truncate(len - del);
-    }
-
-    /// Retains only the elements specified by the predicate.
-    ///
-    /// This method is identical in behaviour to [`retain`]; it is included only
-    /// to maintain api-compatability with `std::Vec`, where the methods are
-    /// separate for historical reasons.
-    pub fn retain_mut<F: FnMut(&mut A::Item) -> bool>(&mut self, f: F) {
-        self.retain(f)
-    }
-
-    /// Removes consecutive duplicate elements.
-    pub fn dedup(&mut self)
-    where
-        A::Item: PartialEq<A::Item>,
-    {
-        self.dedup_by(|a, b| a == b);
-    }
-
-    /// Removes consecutive duplicate elements using the given equality relation.
-    pub fn dedup_by<F>(&mut self, mut same_bucket: F)
-    where
-        F: FnMut(&mut A::Item, &mut A::Item) -> bool,
-    {
-        // See the implementation of Vec::dedup_by in the
-        // standard library for an explanation of this algorithm.
-        let len = self.len();
-        if len <= 1 {
-            return;
-        }
-
-        let ptr = self.as_mut_ptr();
-        let mut w: usize = 1;
-
-        unsafe {
-            for r in 1..len {
-                let p_r = ptr.add(r);
-                let p_wm1 = ptr.add(w - 1);
-                if !same_bucket(&mut *p_r, &mut *p_wm1) {
-                    if r != w {
-                        let p_w = p_wm1.add(1);
-                        mem::swap(&mut *p_r, &mut *p_w);
-                    }
-                    w += 1;
-                }
-            }
-        }
-
-        self.truncate(w);
-    }
-
-    /// Removes consecutive elements that map to the same key.
-    pub fn dedup_by_key<F, K>(&mut self, mut key: F)
-    where
-        F: FnMut(&mut A::Item) -> K,
-        K: PartialEq<K>,
-    {
-        self.dedup_by(|a, b| key(a) == key(b));
-    }
-
-    /// Resizes the `SmallVec` in-place so that `len` is equal to `new_len`.
-    ///
-    /// If `new_len` is greater than `len`, the `SmallVec` is extended by the difference, with each
-    /// additional slot filled with the result of calling the closure `f`. The return values from `f`
-    /// will end up in the `SmallVec` in the order they have been generated.
-    ///
-    /// If `new_len` is less than `len`, the `SmallVec` is simply truncated.
-    ///
-    /// This method uses a closure to create new values on every push. If you'd rather `Clone` a given
-    /// value, use `resize`. If you want to use the `Default` trait to generate values, you can pass
-    /// `Default::default()` as the second argument.
-    ///
-    /// Added for `std::vec::Vec` compatibility (added in Rust 1.33.0)
-    ///
-    /// ```
-    /// # use smallvec::{smallvec, SmallVec};
-    /// let mut vec : SmallVec<[_; 4]> = smallvec![1, 2, 3];
-    /// vec.resize_with(5, Default::default);
-    /// assert_eq!(&*vec, &[1, 2, 3, 0, 0]);
-    ///
-    /// let mut vec : SmallVec<[_; 4]> = smallvec![];
-    /// let mut p = 1;
-    /// vec.resize_with(4, || { p *= 2; p });
-    /// assert_eq!(&*vec, &[2, 4, 8, 16]);
-    /// ```
-    pub fn resize_with<F>(&mut self, new_len: usize, f: F)
-    where
-        F: FnMut() -> A::Item,
-    {
-        let old_len = self.len();
-        if old_len < new_len {
-            let mut f = f;
-            let additional = new_len - old_len;
-            self.reserve(additional);
-            for _ in 0..additional {
-                self.push(f());
-            }
-        } else if old_len > new_len {
-            self.truncate(new_len);
-        }
-    }
-
-    /// Creates a `SmallVec` directly from the raw components of another
-    /// `SmallVec`.
-    ///
-    /// # Safety
-    ///
-    /// This is highly unsafe, due to the number of invariants that aren't
-    /// checked:
-    ///
-    /// * `ptr` needs to have been previously allocated via `SmallVec` for its
-    ///   spilled storage (at least, it's highly likely to be incorrect if it
-    ///   wasn't).
-    /// * `ptr`'s `A::Item` type needs to be the same size and alignment that
-    ///   it was allocated with
-    /// * `length` needs to be less than or equal to `capacity`.
-    /// * `capacity` needs to be the capacity that the pointer was allocated
-    ///   with.
-    ///
-    /// Violating these may cause problems like corrupting the allocator's
-    /// internal data structures.
-    ///
-    /// Additionally, `capacity` must be greater than the amount of inline
-    /// storage `A` has; that is, the new `SmallVec` must need to spill over
-    /// into heap allocated storage. This condition is asserted against.
-    ///
-    /// The ownership of `ptr` is effectively transferred to the
-    /// `SmallVec` which may then deallocate, reallocate or change the
-    /// contents of memory pointed to by the pointer at will. Ensure
-    /// that nothing else uses the pointer after calling this
-    /// function.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// # use smallvec::{smallvec, SmallVec};
-    /// use std::mem;
-    /// use std::ptr;
-    ///
-    /// fn main() {
-    ///     let mut v: SmallVec<[_; 1]> = smallvec![1, 2, 3];
-    ///
-    ///     // Pull out the important parts of `v`.
-    ///     let p = v.as_mut_ptr();
-    ///     let len = v.len();
-    ///     let cap = v.capacity();
-    ///     let spilled = v.spilled();
-    ///
-    ///     unsafe {
-    ///         // Forget all about `v`. The heap allocation that stored the
-    ///         // three values won't be deallocated.
-    ///         mem::forget(v);
-    ///
-    ///         // Overwrite memory with [4, 5, 6].
-    ///         //
-    ///         // This is only safe if `spilled` is true! Otherwise, we are
-    ///         // writing into the old `SmallVec`'s inline storage on the
-    ///         // stack.
-    ///         assert!(spilled);
-    ///         for i in 0..len {
-    ///             ptr::write(p.add(i), 4 + i);
-    ///         }
-    ///
-    ///         // Put everything back together into a SmallVec with a different
-    ///         // amount of inline storage, but which is still less than `cap`.
-    ///         let rebuilt = SmallVec::<[_; 2]>::from_raw_parts(p, len, cap);
-    ///         assert_eq!(&*rebuilt, &[4, 5, 6]);
-    ///     }
-    /// }
-    #[inline]
-    pub unsafe fn from_raw_parts(ptr: *mut A::Item, length: usize, capacity: usize) -> SmallVec<A> {
-        // SAFETY: We require caller to provide same ptr as we alloc
-        // and we never alloc null pointer.
-        let ptr = unsafe {
-            debug_assert!(!ptr.is_null(), "Called `from_raw_parts` with null pointer.");
-            NonNull::new_unchecked(ptr)
-        };
-        assert!(capacity > Self::inline_capacity());
-        SmallVec {
-            capacity,
-            data: SmallVecData::from_heap(ptr, length),
-        }
-    }
-
-    /// Returns a raw pointer to the vector's buffer.
-    pub fn as_ptr(&self) -> *const A::Item {
-        // We shadow the slice method of the same name to avoid going through
-        // `deref`, which creates an intermediate reference that may place
-        // additional safety constraints on the contents of the slice.
-        self.triple().0.as_ptr()
-    }
-
-    /// Returns a raw mutable pointer to the vector's buffer.
-    pub fn as_mut_ptr(&mut self) -> *mut A::Item {
-        // We shadow the slice method of the same name to avoid going through
-        // `deref_mut`, which creates an intermediate reference that may place
-        // additional safety constraints on the contents of the slice.
-        self.triple_mut().0.as_ptr()
-    }
-}
-
-impl<A: Array> SmallVec<A>
-where
-    A::Item: Copy,
-{
-    /// Copy the elements from a slice into a new `SmallVec`.
-    ///
-    /// For slices of `Copy` types, this is more efficient than `SmallVec::from(slice)`.
-    pub fn from_slice(slice: &[A::Item]) -> Self {
-        let len = slice.len();
-        if len <= Self::inline_capacity() {
-            SmallVec {
-                capacity: len,
-                data: SmallVecData::from_inline(unsafe {
-                    let mut data: MaybeUninit<A> = MaybeUninit::uninit();
-                    ptr::copy_nonoverlapping(
-                        slice.as_ptr(),
-                        data.as_mut_ptr() as *mut A::Item,
-                        len,
-                    );
-                    data
-                }),
-            }
-        } else {
-            let mut b = slice.to_vec();
-            let cap = b.capacity();
-            let ptr = NonNull::new(b.as_mut_ptr()).expect("Vec always contain non null pointers.");
-            mem::forget(b);
-            SmallVec {
-                capacity: cap,
-                data: SmallVecData::from_heap(ptr, len),
-            }
-        }
-    }
-
-    /// Copy elements from a slice into the vector at position `index`, shifting any following
-    /// elements toward the back.
-    ///
-    /// For slices of `Copy` types, this is more efficient than `insert`.
-    #[inline]
-    pub fn insert_from_slice(&mut self, index: usize, slice: &[A::Item]) {
-        self.reserve(slice.len());
-
-        let len = self.len();
-        assert!(index <= len);
-
-        unsafe {
-            let slice_ptr = slice.as_ptr();
-            let ptr = self.as_mut_ptr().add(index);
-            ptr::copy(ptr, ptr.add(slice.len()), len - index);
-            ptr::copy_nonoverlapping(slice_ptr, ptr, slice.len());
-            self.set_len(len + slice.len());
-        }
-    }
-
-    /// Copy elements from a slice and append them to the vector.
-    ///
-    /// For slices of `Copy` types, this is more efficient than `extend`.
-    #[inline]
-    pub fn extend_from_slice(&mut self, slice: &[A::Item]) {
-        let len = self.len();
-        self.insert_from_slice(len, slice);
-    }
-}
-
-impl<A: Array> SmallVec<A>
-where
-    A::Item: Clone,
-{
-    /// Resizes the vector so that its length is equal to `len`.
-    ///
-    /// If `len` is less than the current length, the vector simply truncated.
-    ///
-    /// If `len` is greater than the current length, `value` is appended to the
-    /// vector until its length equals `len`.
-    pub fn resize(&mut self, len: usize, value: A::Item) {
-        let old_len = self.len();
-
-        if len > old_len {
-            self.extend(repeat(value).take(len - old_len));
-        } else {
-            self.truncate(len);
-        }
-    }
-
-    /// Creates a `SmallVec` with `n` copies of `elem`.
-    /// ```
-    /// use smallvec::SmallVec;
-    ///
-    /// let v = SmallVec::<[char; 128]>::from_elem('d', 2);
-    /// assert_eq!(v, SmallVec::from_buf(['d', 'd']));
-    /// ```
-    pub fn from_elem(elem: A::Item, n: usize) -> Self {
-        if n > Self::inline_capacity() {
-            vec![elem; n].into()
-        } else {
-            let mut v = SmallVec::<A>::new();
-            unsafe {
-                let (ptr, len_ptr, _) = v.triple_mut();
-                let ptr = ptr.as_ptr();
-                let mut local_len = SetLenOnDrop::new(len_ptr);
-
-                for i in 0..n {
-                    ::core::ptr::write(ptr.add(i), elem.clone());
-                    local_len.increment_len(1);
-                }
-            }
-            v
-        }
-    }
-}
-
-impl<A: Array> ops::Deref for SmallVec<A> {
-    type Target = [A::Item];
-    #[inline]
-    fn deref(&self) -> &[A::Item] {
-        unsafe {
-            let (ptr, len, _) = self.triple();
-            slice::from_raw_parts(ptr.as_ptr(), len)
-        }
-    }
-}
-
-impl<A: Array> ops::DerefMut for SmallVec<A> {
-    #[inline]
-    fn deref_mut(&mut self) -> &mut [A::Item] {
-        unsafe {
-            let (ptr, &mut len, _) = self.triple_mut();
-            slice::from_raw_parts_mut(ptr.as_ptr(), len)
-        }
-    }
-}
-
-impl<A: Array> AsRef<[A::Item]> for SmallVec<A> {
-    #[inline]
-    fn as_ref(&self) -> &[A::Item] {
-        self
-    }
-}
-
-impl<A: Array> AsMut<[A::Item]> for SmallVec<A> {
-    #[inline]
-    fn as_mut(&mut self) -> &mut [A::Item] {
-        self
-    }
-}
-
-impl<A: Array> Borrow<[A::Item]> for SmallVec<A> {
-    #[inline]
-    fn borrow(&self) -> &[A::Item] {
-        self
-    }
-}
-
-impl<A: Array> BorrowMut<[A::Item]> for SmallVec<A> {
-    #[inline]
-    fn borrow_mut(&mut self) -> &mut [A::Item] {
-        self
-    }
-}
-
-#[cfg(feature = "write")]
-#[cfg_attr(docsrs, doc(cfg(feature = "write")))]
-impl<A: Array<Item = u8>> io::Write for SmallVec<A> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        self.extend_from_slice(buf);
-        Ok(buf.len())
-    }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        self.extend_from_slice(buf);
-        Ok(())
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> {
-        Ok(())
-    }
-}
-
-#[cfg(feature = "serde")]
-#[cfg_attr(docsrs, doc(cfg(feature = "serde")))]
-impl<A: Array> Serialize for SmallVec<A>
-where
-    A::Item: Serialize,
-{
-    fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
-        let mut state = serializer.serialize_seq(Some(self.len()))?;
-        for item in self {
-            state.serialize_element(&item)?;
-        }
-        state.end()
-    }
-}
-
-#[cfg(feature = "serde")]
-#[cfg_attr(docsrs, doc(cfg(feature = "serde")))]
-impl<'de, A: Array> Deserialize<'de> for SmallVec<A>
-where
-    A::Item: Deserialize<'de>,
-{
-    fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
-        deserializer.deserialize_seq(SmallVecVisitor {
-            phantom: PhantomData,
-        })
-    }
-}
-
-#[cfg(feature = "serde")]
-struct SmallVecVisitor<A> {
-    phantom: PhantomData<A>,
-}
-
-#[cfg(feature = "serde")]
-impl<'de, A: Array> Visitor<'de> for SmallVecVisitor<A>
-where
-    A::Item: Deserialize<'de>,
-{
-    type Value = SmallVec<A>;
-
-    fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
-        formatter.write_str("a sequence")
-    }
-
-    fn visit_seq<B>(self, mut seq: B) -> Result<Self::Value, B::Error>
-    where
-        B: SeqAccess<'de>,
-    {
-        use serde::de::Error;
-        let len = seq.size_hint().unwrap_or(0);
-        let mut values = SmallVec::new();
-        values.try_reserve(len).map_err(B::Error::custom)?;
-
-        while let Some(value) = seq.next_element()? {
-            values.push(value);
-        }
-
-        Ok(values)
-    }
-}
-
-#[cfg(feature = "specialization")]
-trait SpecFrom<A: Array, S> {
-    fn spec_from(slice: S) -> SmallVec<A>;
-}
-
-#[cfg(feature = "specialization")]
-mod specialization;
-
-#[cfg(feature = "arbitrary")]
-mod arbitrary;
-
-#[cfg(feature = "specialization")]
-impl<'a, A: Array> SpecFrom<A, &'a [A::Item]> for SmallVec<A>
-where
-    A::Item: Copy,
-{
-    #[inline]
-    fn spec_from(slice: &'a [A::Item]) -> SmallVec<A> {
-        SmallVec::from_slice(slice)
-    }
-}
-
-impl<'a, A: Array> From<&'a [A::Item]> for SmallVec<A>
-where
-    A::Item: Clone,
-{
-    #[cfg(not(feature = "specialization"))]
-    #[inline]
-    fn from(slice: &'a [A::Item]) -> SmallVec<A> {
-        slice.iter().cloned().collect()
-    }
-
-    #[cfg(feature = "specialization")]
-    #[inline]
-    fn from(slice: &'a [A::Item]) -> SmallVec<A> {
-        SmallVec::spec_from(slice)
-    }
-}
-
-impl<A: Array> From<Vec<A::Item>> for SmallVec<A> {
-    #[inline]
-    fn from(vec: Vec<A::Item>) -> SmallVec<A> {
-        SmallVec::from_vec(vec)
-    }
-}
-
-impl<A: Array> From<A> for SmallVec<A> {
-    #[inline]
-    fn from(array: A) -> SmallVec<A> {
-        SmallVec::from_buf(array)
-    }
-}
-
-impl<A: Array, I: SliceIndex<[A::Item]>> ops::Index<I> for SmallVec<A> {
-    type Output = I::Output;
-
-    fn index(&self, index: I) -> &I::Output {
-        &(**self)[index]
-    }
-}
-
-impl<A: Array, I: SliceIndex<[A::Item]>> ops::IndexMut<I> for SmallVec<A> {
-    fn index_mut(&mut self, index: I) -> &mut I::Output {
-        &mut (&mut **self)[index]
-    }
-}
-
-#[allow(deprecated)]
-impl<A: Array> ExtendFromSlice<A::Item> for SmallVec<A>
-where
-    A::Item: Copy,
-{
-    fn extend_from_slice(&mut self, other: &[A::Item]) {
-        SmallVec::extend_from_slice(self, other)
-    }
-}
-
-impl<A: Array> FromIterator<A::Item> for SmallVec<A> {
-    #[inline]
-    fn from_iter<I: IntoIterator<Item = A::Item>>(iterable: I) -> SmallVec<A> {
-        let mut v = SmallVec::new();
-        v.extend(iterable);
-        v
-    }
-}
-
-impl<A: Array> Extend<A::Item> for SmallVec<A> {
-    fn extend<I: IntoIterator<Item = A::Item>>(&mut self, iterable: I) {
-        let mut iter = iterable.into_iter();
-        let (lower_size_bound, _) = iter.size_hint();
-        self.reserve(lower_size_bound);
-
-        unsafe {
-            let (ptr, len_ptr, cap) = self.triple_mut();
-            let ptr = ptr.as_ptr();
-            let mut len = SetLenOnDrop::new(len_ptr);
-            while len.get() < cap {
-                if let Some(out) = iter.next() {
-                    ptr::write(ptr.add(len.get()), out);
-                    len.increment_len(1);
-                } else {
-                    return;
-                }
-            }
-        }
-
-        for elem in iter {
-            self.push(elem);
-        }
-    }
-}
-
-impl<A: Array> fmt::Debug for SmallVec<A>
-where
-    A::Item: fmt::Debug,
-{
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.debug_list().entries(self.iter()).finish()
-    }
-}
-
-impl<A: Array> Default for SmallVec<A> {
-    #[inline]
-    fn default() -> SmallVec<A> {
-        SmallVec::new()
-    }
-}
-
-#[cfg(feature = "may_dangle")]
-unsafe impl<#[may_dangle] A: Array> Drop for SmallVec<A> {
-    fn drop(&mut self) {
-        unsafe {
-            if self.spilled() {
-                let (ptr, &mut len) = self.data.heap_mut();
-                Vec::from_raw_parts(ptr.as_ptr(), len, self.capacity);
-            } else {
-                ptr::drop_in_place(&mut self[..]);
-            }
-        }
-    }
-}
-
-#[cfg(not(feature = "may_dangle"))]
-impl<A: Array> Drop for SmallVec<A> {
-    fn drop(&mut self) {
-        unsafe {
-            if self.spilled() {
-                let (ptr, &mut len) = self.data.heap_mut();
-                drop(Vec::from_raw_parts(ptr.as_ptr(), len, self.capacity));
-            } else {
-                ptr::drop_in_place(&mut self[..]);
-            }
-        }
-    }
-}
-
-impl<A: Array> Clone for SmallVec<A>
-where
-    A::Item: Clone,
-{
-    #[inline]
-    fn clone(&self) -> SmallVec<A> {
-        SmallVec::from(self.as_slice())
-    }
-
-    fn clone_from(&mut self, source: &Self) {
-        // Inspired from `impl Clone for Vec`.
-
-        // drop anything that will not be overwritten
-        self.truncate(source.len());
-
-        // self.len <= other.len due to the truncate above, so the
-        // slices here are always in-bounds.
-        let (init, tail) = source.split_at(self.len());
-
-        // reuse the contained values' allocations/resources.
-        self.clone_from_slice(init);
-        self.extend(tail.iter().cloned());
-    }
-}
-
-impl<A: Array, B: Array> PartialEq<SmallVec<B>> for SmallVec<A>
-where
-    A::Item: PartialEq<B::Item>,
-{
-    #[inline]
-    fn eq(&self, other: &SmallVec<B>) -> bool {
-        self[..] == other[..]
-    }
-}
-
-impl<A: Array> Eq for SmallVec<A> where A::Item: Eq {}
-
-impl<A: Array> PartialOrd for SmallVec<A>
-where
-    A::Item: PartialOrd,
-{
-    #[inline]
-    fn partial_cmp(&self, other: &SmallVec<A>) -> Option<cmp::Ordering> {
-        PartialOrd::partial_cmp(&**self, &**other)
-    }
-}
-
-impl<A: Array> Ord for SmallVec<A>
-where
-    A::Item: Ord,
-{
-    #[inline]
-    fn cmp(&self, other: &SmallVec<A>) -> cmp::Ordering {
-        Ord::cmp(&**self, &**other)
-    }
-}
-
-impl<A: Array> Hash for SmallVec<A>
-where
-    A::Item: Hash,
-{
-    fn hash<H: Hasher>(&self, state: &mut H) {
-        (**self).hash(state)
-    }
-}
-
-unsafe impl<A: Array> Send for SmallVec<A> where A::Item: Send {}
-
-/// An iterator that consumes a `SmallVec` and yields its items by value.
-///
-/// Returned from [`SmallVec::into_iter`][1].
-///
-/// [1]: struct.SmallVec.html#method.into_iter
-pub struct IntoIter<A: Array> {
-    data: SmallVec<A>,
-    current: usize,
-    end: usize,
-}
-
-impl<A: Array> fmt::Debug for IntoIter<A>
-where
-    A::Item: fmt::Debug,
-{
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.debug_tuple("IntoIter").field(&self.as_slice()).finish()
-    }
-}
-
-impl<A: Array + Clone> Clone for IntoIter<A>
-where
-    A::Item: Clone,
-{
-    fn clone(&self) -> IntoIter<A> {
-        SmallVec::from(self.as_slice()).into_iter()
-    }
-}
-
-impl<A: Array> Drop for IntoIter<A> {
-    fn drop(&mut self) {
-        for _ in self {}
-    }
-}
-
-impl<A: Array> Iterator for IntoIter<A> {
-    type Item = A::Item;
-
-    #[inline]
-    fn next(&mut self) -> Option<A::Item> {
-        if self.current == self.end {
-            None
-        } else {
-            unsafe {
-                let current = self.current;
-                self.current += 1;
-                Some(ptr::read(self.data.as_ptr().add(current)))
-            }
-        }
-    }
-
-    #[inline]
-    fn size_hint(&self) -> (usize, Option<usize>) {
-        let size = self.end - self.current;
-        (size, Some(size))
-    }
-}
-
-impl<A: Array> DoubleEndedIterator for IntoIter<A> {
-    #[inline]
-    fn next_back(&mut self) -> Option<A::Item> {
-        if self.current == self.end {
-            None
-        } else {
-            unsafe {
-                self.end -= 1;
-                Some(ptr::read(self.data.as_ptr().add(self.end)))
-            }
-        }
-    }
-}
-
-impl<A: Array> ExactSizeIterator for IntoIter<A> {}
-impl<A: Array> FusedIterator for IntoIter<A> {}
-
-impl<A: Array> IntoIter<A> {
-    /// Returns the remaining items of this iterator as a slice.
-    pub fn as_slice(&self) -> &[A::Item] {
-        let len = self.end - self.current;
-        unsafe { core::slice::from_raw_parts(self.data.as_ptr().add(self.current), len) }
-    }
-
-    /// Returns the remaining items of this iterator as a mutable slice.
-    pub fn as_mut_slice(&mut self) -> &mut [A::Item] {
-        let len = self.end - self.current;
-        unsafe { core::slice::from_raw_parts_mut(self.data.as_mut_ptr().add(self.current), len) }
-    }
-}
-
-impl<A: Array> IntoIterator for SmallVec<A> {
-    type IntoIter = IntoIter<A>;
-    type Item = A::Item;
-    fn into_iter(mut self) -> Self::IntoIter {
-        unsafe {
-            // Set SmallVec len to zero as `IntoIter` drop handles dropping of the elements
-            let len = self.len();
-            self.set_len(0);
-            IntoIter {
-                data: self,
-                current: 0,
-                end: len,
-            }
-        }
-    }
-}
-
-impl<'a, A: Array> IntoIterator for &'a SmallVec<A> {
-    type IntoIter = slice::Iter<'a, A::Item>;
-    type Item = &'a A::Item;
-    fn into_iter(self) -> Self::IntoIter {
-        self.iter()
-    }
-}
-
-impl<'a, A: Array> IntoIterator for &'a mut SmallVec<A> {
-    type IntoIter = slice::IterMut<'a, A::Item>;
-    type Item = &'a mut A::Item;
-    fn into_iter(self) -> Self::IntoIter {
-        self.iter_mut()
-    }
-}
-
-/// Types that can be used as the backing store for a [`SmallVec`].
-pub unsafe trait Array {
-    /// The type of the array's elements.
-    type Item;
-    /// Returns the number of items the array can hold.
-    fn size() -> usize;
-}
-
-/// Set the length of the vec when the `SetLenOnDrop` value goes out of scope.
-///
-/// Copied from <https://github.com/rust-lang/rust/pull/36355>
-struct SetLenOnDrop<'a> {
-    len: &'a mut usize,
-    local_len: usize,
-}
-
-impl<'a> SetLenOnDrop<'a> {
-    #[inline]
-    fn new(len: &'a mut usize) -> Self {
-        SetLenOnDrop {
-            local_len: *len,
-            len,
-        }
-    }
-
-    #[inline]
-    fn get(&self) -> usize {
-        self.local_len
-    }
-
-    #[inline]
-    fn increment_len(&mut self, increment: usize) {
-        self.local_len += increment;
-    }
-}
-
-impl<'a> Drop for SetLenOnDrop<'a> {
-    #[inline]
-    fn drop(&mut self) {
-        *self.len = self.local_len;
-    }
-}
-
-#[cfg(feature = "const_new")]
-impl<T, const N: usize> SmallVec<[T; N]> {
-    /// Construct an empty vector.
-    ///
-    /// This is a `const` version of [`SmallVec::new`] that is enabled by the feature `const_new`, with the limitation that it only works for arrays.
-    #[cfg_attr(docsrs, doc(cfg(feature = "const_new")))]
-    #[inline]
-    pub const fn new_const() -> Self {
-        SmallVec {
-            capacity: 0,
-            data: SmallVecData::from_const(MaybeUninit::uninit()),
-        }
-    }
-
-    /// The array passed as an argument is moved to be an inline version of `SmallVec`.
-    ///
-    /// This is a `const` version of [`SmallVec::from_buf`] that is enabled by the feature `const_new`, with the limitation that it only works for arrays.
-    #[cfg_attr(docsrs, doc(cfg(feature = "const_new")))]
-    #[inline]
-    pub const fn from_const(items: [T; N]) -> Self {
-        SmallVec {
-            capacity: N,
-            data: SmallVecData::from_const(MaybeUninit::new(items)),
-        }
-    }
-}
-
-#[cfg(feature = "const_generics")]
-#[cfg_attr(docsrs, doc(cfg(feature = "const_generics")))]
-unsafe impl<T, const N: usize> Array for [T; N] {
-    type Item = T;
-    #[inline]
-    fn size() -> usize {
-        N
-    }
-}
-
-#[cfg(not(feature = "const_generics"))]
-macro_rules! impl_array(
-    ($($size:expr),+) => {
-        $(
-            unsafe impl<T> Array for [T; $size] {
-                type Item = T;
-                #[inline]
-                fn size() -> usize { $size }
-            }
-        )+
-    }
-);
-
-#[cfg(not(feature = "const_generics"))]
-impl_array!(
-    0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
-    26, 27, 28, 29, 30, 31, 32, 36, 0x40, 0x60, 0x80, 0x100, 0x200, 0x400, 0x600, 0x800, 0x1000,
-    0x2000, 0x4000, 0x6000, 0x8000, 0x10000, 0x20000, 0x40000, 0x60000, 0x80000, 0x10_0000
-);
-
-/// Convenience trait for constructing a `SmallVec`
-pub trait ToSmallVec<A: Array> {
-    /// Construct a new `SmallVec` from a slice.
-    fn to_smallvec(&self) -> SmallVec<A>;
-}
-
-impl<A: Array> ToSmallVec<A> for [A::Item]
-where
-    A::Item: Copy,
-{
-    #[inline]
-    fn to_smallvec(&self) -> SmallVec<A> {
-        SmallVec::from_slice(self)
-    }
-}
-
-// Immutable counterpart for `NonNull<T>`.
-#[repr(transparent)]
-struct ConstNonNull<T>(NonNull<T>);
-
-impl<T> ConstNonNull<T> {
-    #[inline]
-    fn new(ptr: *const T) -> Option<Self> {
-        NonNull::new(ptr as *mut T).map(Self)
-    }
-    #[inline]
-    fn as_ptr(self) -> *const T {
-        self.0.as_ptr()
-    }
-}
-
-impl<T> Clone for ConstNonNull<T> {
-    #[inline]
-    fn clone(&self) -> Self {
-        *self
-    }
-}
-
-impl<T> Copy for ConstNonNull<T> {}
diff --git a/vendor/smallvec/src/specialization.rs b/vendor/smallvec/src/specialization.rs
deleted file mode 100644
index 658fa77..0000000
--- a/vendor/smallvec/src/specialization.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! Implementations that require `default fn`.
-
-use super::{Array, SmallVec, SpecFrom};
-
-impl<'a, A: Array> SpecFrom<A, &'a [A::Item]> for SmallVec<A>
-where
-    A::Item: Clone,
-{
-    #[inline]
-    default fn spec_from(slice: &'a [A::Item]) -> SmallVec<A> {
-        slice.into_iter().cloned().collect()
-    }
-}
diff --git a/vendor/smallvec/src/tests.rs b/vendor/smallvec/src/tests.rs
deleted file mode 100644
index 936ad6f..0000000
--- a/vendor/smallvec/src/tests.rs
+++ /dev/null
@@ -1,1013 +0,0 @@
-use crate::{smallvec, SmallVec};
-
-use std::iter::FromIterator;
-
-use alloc::borrow::ToOwned;
-use alloc::boxed::Box;
-use alloc::rc::Rc;
-use alloc::{vec, vec::Vec};
-
-#[test]
-pub fn test_zero() {
-    let mut v = SmallVec::<[_; 0]>::new();
-    assert!(!v.spilled());
-    v.push(0usize);
-    assert!(v.spilled());
-    assert_eq!(&*v, &[0]);
-}
-
-// We heap allocate all these strings so that double frees will show up under valgrind.
-
-#[test]
-pub fn test_inline() {
-    let mut v = SmallVec::<[_; 16]>::new();
-    v.push("hello".to_owned());
-    v.push("there".to_owned());
-    assert_eq!(&*v, &["hello".to_owned(), "there".to_owned(),][..]);
-}
-
-#[test]
-pub fn test_spill() {
-    let mut v = SmallVec::<[_; 2]>::new();
-    v.push("hello".to_owned());
-    assert_eq!(v[0], "hello");
-    v.push("there".to_owned());
-    v.push("burma".to_owned());
-    assert_eq!(v[0], "hello");
-    v.push("shave".to_owned());
-    assert_eq!(
-        &*v,
-        &[
-            "hello".to_owned(),
-            "there".to_owned(),
-            "burma".to_owned(),
-            "shave".to_owned(),
-        ][..]
-    );
-}
-
-#[test]
-pub fn test_double_spill() {
-    let mut v = SmallVec::<[_; 2]>::new();
-    v.push("hello".to_owned());
-    v.push("there".to_owned());
-    v.push("burma".to_owned());
-    v.push("shave".to_owned());
-    v.push("hello".to_owned());
-    v.push("there".to_owned());
-    v.push("burma".to_owned());
-    v.push("shave".to_owned());
-    assert_eq!(
-        &*v,
-        &[
-            "hello".to_owned(),
-            "there".to_owned(),
-            "burma".to_owned(),
-            "shave".to_owned(),
-            "hello".to_owned(),
-            "there".to_owned(),
-            "burma".to_owned(),
-            "shave".to_owned(),
-        ][..]
-    );
-}
-
-// https://github.com/servo/rust-smallvec/issues/4
-#[test]
-fn issue_4() {
-    SmallVec::<[Box<u32>; 2]>::new();
-}
-
-// https://github.com/servo/rust-smallvec/issues/5
-#[test]
-fn issue_5() {
-    assert!(Some(SmallVec::<[&u32; 2]>::new()).is_some());
-}
-
-#[test]
-fn test_with_capacity() {
-    let v: SmallVec<[u8; 3]> = SmallVec::with_capacity(1);
-    assert!(v.is_empty());
-    assert!(!v.spilled());
-    assert_eq!(v.capacity(), 3);
-
-    let v: SmallVec<[u8; 3]> = SmallVec::with_capacity(10);
-    assert!(v.is_empty());
-    assert!(v.spilled());
-    assert_eq!(v.capacity(), 10);
-}
-
-#[test]
-fn drain() {
-    let mut v: SmallVec<[u8; 2]> = SmallVec::new();
-    v.push(3);
-    assert_eq!(v.drain(..).collect::<Vec<_>>(), &[3]);
-
-    // spilling the vec
-    v.push(3);
-    v.push(4);
-    v.push(5);
-    let old_capacity = v.capacity();
-    assert_eq!(v.drain(1..).collect::<Vec<_>>(), &[4, 5]);
-    // drain should not change the capacity
-    assert_eq!(v.capacity(), old_capacity);
-
-    // Exercise the tail-shifting code when in the inline state
-    // This has the potential to produce UB due to aliasing
-    let mut v: SmallVec<[u8; 2]> = SmallVec::new();
-    v.push(1);
-    v.push(2);
-    assert_eq!(v.drain(..1).collect::<Vec<_>>(), &[1]);
-}
-
-#[test]
-fn drain_rev() {
-    let mut v: SmallVec<[u8; 2]> = SmallVec::new();
-    v.push(3);
-    assert_eq!(v.drain(..).rev().collect::<Vec<_>>(), &[3]);
-
-    // spilling the vec
-    v.push(3);
-    v.push(4);
-    v.push(5);
-    assert_eq!(v.drain(..).rev().collect::<Vec<_>>(), &[5, 4, 3]);
-}
-
-#[test]
-fn drain_forget() {
-    let mut v: SmallVec<[u8; 1]> = smallvec![0, 1, 2, 3, 4, 5, 6, 7];
-    std::mem::forget(v.drain(2..5));
-    assert_eq!(v.len(), 2);
-}
-
-#[test]
-fn into_iter() {
-    let mut v: SmallVec<[u8; 2]> = SmallVec::new();
-    v.push(3);
-    assert_eq!(v.into_iter().collect::<Vec<_>>(), &[3]);
-
-    // spilling the vec
-    let mut v: SmallVec<[u8; 2]> = SmallVec::new();
-    v.push(3);
-    v.push(4);
-    v.push(5);
-    assert_eq!(v.into_iter().collect::<Vec<_>>(), &[3, 4, 5]);
-}
-
-#[test]
-fn into_iter_rev() {
-    let mut v: SmallVec<[u8; 2]> = SmallVec::new();
-    v.push(3);
-    assert_eq!(v.into_iter().rev().collect::<Vec<_>>(), &[3]);
-
-    // spilling the vec
-    let mut v: SmallVec<[u8; 2]> = SmallVec::new();
-    v.push(3);
-    v.push(4);
-    v.push(5);
-    assert_eq!(v.into_iter().rev().collect::<Vec<_>>(), &[5, 4, 3]);
-}
-
-#[test]
-fn into_iter_drop() {
-    use std::cell::Cell;
-
-    struct DropCounter<'a>(&'a Cell<i32>);
-
-    impl<'a> Drop for DropCounter<'a> {
-        fn drop(&mut self) {
-            self.0.set(self.0.get() + 1);
-        }
-    }
-
-    {
-        let cell = Cell::new(0);
-        let mut v: SmallVec<[DropCounter<'_>; 2]> = SmallVec::new();
-        v.push(DropCounter(&cell));
-        v.into_iter();
-        assert_eq!(cell.get(), 1);
-    }
-
-    {
-        let cell = Cell::new(0);
-        let mut v: SmallVec<[DropCounter<'_>; 2]> = SmallVec::new();
-        v.push(DropCounter(&cell));
-        v.push(DropCounter(&cell));
-        assert!(v.into_iter().next().is_some());
-        assert_eq!(cell.get(), 2);
-    }
-
-    {
-        let cell = Cell::new(0);
-        let mut v: SmallVec<[DropCounter<'_>; 2]> = SmallVec::new();
-        v.push(DropCounter(&cell));
-        v.push(DropCounter(&cell));
-        v.push(DropCounter(&cell));
-        assert!(v.into_iter().next().is_some());
-        assert_eq!(cell.get(), 3);
-    }
-    {
-        let cell = Cell::new(0);
-        let mut v: SmallVec<[DropCounter<'_>; 2]> = SmallVec::new();
-        v.push(DropCounter(&cell));
-        v.push(DropCounter(&cell));
-        v.push(DropCounter(&cell));
-        {
-            let mut it = v.into_iter();
-            assert!(it.next().is_some());
-            assert!(it.next_back().is_some());
-        }
-        assert_eq!(cell.get(), 3);
-    }
-}
-
-#[test]
-fn test_capacity() {
-    let mut v: SmallVec<[u8; 2]> = SmallVec::new();
-    v.reserve(1);
-    assert_eq!(v.capacity(), 2);
-    assert!(!v.spilled());
-
-    v.reserve_exact(0x100);
-    assert!(v.capacity() >= 0x100);
-
-    v.push(0);
-    v.push(1);
-    v.push(2);
-    v.push(3);
-
-    v.shrink_to_fit();
-    assert!(v.capacity() < 0x100);
-}
-
-#[test]
-fn test_truncate() {
-    let mut v: SmallVec<[Box<u8>; 8]> = SmallVec::new();
-
-    for x in 0..8 {
-        v.push(Box::new(x));
-    }
-    v.truncate(4);
-
-    assert_eq!(v.len(), 4);
-    assert!(!v.spilled());
-
-    assert_eq!(*v.swap_remove(1), 1);
-    assert_eq!(*v.remove(1), 3);
-    v.insert(1, Box::new(3));
-
-    assert_eq!(&v.iter().map(|v| **v).collect::<Vec<_>>(), &[0, 3, 2]);
-}
-
-#[test]
-fn test_insert_many() {
-    let mut v: SmallVec<[u8; 8]> = SmallVec::new();
-    for x in 0..4 {
-        v.push(x);
-    }
-    assert_eq!(v.len(), 4);
-    v.insert_many(1, [5, 6].iter().cloned());
-    assert_eq!(
-        &v.iter().map(|v| *v).collect::<Vec<_>>(),
-        &[0, 5, 6, 1, 2, 3]
-    );
-}
-
-struct MockHintIter<T: Iterator> {
-    x: T,
-    hint: usize,
-}
-impl<T: Iterator> Iterator for MockHintIter<T> {
-    type Item = T::Item;
-    fn next(&mut self) -> Option<Self::Item> {
-        self.x.next()
-    }
-    fn size_hint(&self) -> (usize, Option<usize>) {
-        (self.hint, None)
-    }
-}
-
-#[test]
-fn test_insert_many_short_hint() {
-    let mut v: SmallVec<[u8; 8]> = SmallVec::new();
-    for x in 0..4 {
-        v.push(x);
-    }
-    assert_eq!(v.len(), 4);
-    v.insert_many(
-        1,
-        MockHintIter {
-            x: [5, 6].iter().cloned(),
-            hint: 5,
-        },
-    );
-    assert_eq!(
-        &v.iter().map(|v| *v).collect::<Vec<_>>(),
-        &[0, 5, 6, 1, 2, 3]
-    );
-}
-
-#[test]
-fn test_insert_many_long_hint() {
-    let mut v: SmallVec<[u8; 8]> = SmallVec::new();
-    for x in 0..4 {
-        v.push(x);
-    }
-    assert_eq!(v.len(), 4);
-    v.insert_many(
-        1,
-        MockHintIter {
-            x: [5, 6].iter().cloned(),
-            hint: 1,
-        },
-    );
-    assert_eq!(
-        &v.iter().map(|v| *v).collect::<Vec<_>>(),
-        &[0, 5, 6, 1, 2, 3]
-    );
-}
-
-// https://github.com/servo/rust-smallvec/issues/96
-mod insert_many_panic {
-    use crate::{smallvec, SmallVec};
-    use alloc::boxed::Box;
-
-    struct PanicOnDoubleDrop {
-        dropped: Box<bool>,
-    }
-
-    impl PanicOnDoubleDrop {
-        fn new() -> Self {
-            Self {
-                dropped: Box::new(false),
-            }
-        }
-    }
-
-    impl Drop for PanicOnDoubleDrop {
-        fn drop(&mut self) {
-            assert!(!*self.dropped, "already dropped");
-            *self.dropped = true;
-        }
-    }
-
-    /// Claims to yield `hint` items, but actually yields `count`, then panics.
-    struct BadIter {
-        hint: usize,
-        count: usize,
-    }
-
-    impl Iterator for BadIter {
-        type Item = PanicOnDoubleDrop;
-        fn size_hint(&self) -> (usize, Option<usize>) {
-            (self.hint, None)
-        }
-        fn next(&mut self) -> Option<Self::Item> {
-            if self.count == 0 {
-                panic!()
-            }
-            self.count -= 1;
-            Some(PanicOnDoubleDrop::new())
-        }
-    }
-
-    #[test]
-    fn panic_early_at_start() {
-        let mut vec: SmallVec<[PanicOnDoubleDrop; 0]> =
-            smallvec![PanicOnDoubleDrop::new(), PanicOnDoubleDrop::new(),];
-        let result = ::std::panic::catch_unwind(move || {
-            vec.insert_many(0, BadIter { hint: 1, count: 0 });
-        });
-        assert!(result.is_err());
-    }
-
-    #[test]
-    fn panic_early_in_middle() {
-        let mut vec: SmallVec<[PanicOnDoubleDrop; 0]> =
-            smallvec![PanicOnDoubleDrop::new(), PanicOnDoubleDrop::new(),];
-        let result = ::std::panic::catch_unwind(move || {
-            vec.insert_many(1, BadIter { hint: 4, count: 2 });
-        });
-        assert!(result.is_err());
-    }
-
-    #[test]
-    fn panic_early_at_end() {
-        let mut vec: SmallVec<[PanicOnDoubleDrop; 0]> =
-            smallvec![PanicOnDoubleDrop::new(), PanicOnDoubleDrop::new(),];
-        let result = ::std::panic::catch_unwind(move || {
-            vec.insert_many(2, BadIter { hint: 3, count: 1 });
-        });
-        assert!(result.is_err());
-    }
-
-    #[test]
-    fn panic_late_at_start() {
-        let mut vec: SmallVec<[PanicOnDoubleDrop; 0]> =
-            smallvec![PanicOnDoubleDrop::new(), PanicOnDoubleDrop::new(),];
-        let result = ::std::panic::catch_unwind(move || {
-            vec.insert_many(0, BadIter { hint: 3, count: 5 });
-        });
-        assert!(result.is_err());
-    }
-
-    #[test]
-    fn panic_late_at_end() {
-        let mut vec: SmallVec<[PanicOnDoubleDrop; 0]> =
-            smallvec![PanicOnDoubleDrop::new(), PanicOnDoubleDrop::new(),];
-        let result = ::std::panic::catch_unwind(move || {
-            vec.insert_many(2, BadIter { hint: 3, count: 5 });
-        });
-        assert!(result.is_err());
-    }
-}
-
-#[test]
-#[should_panic]
-fn test_invalid_grow() {
-    let mut v: SmallVec<[u8; 8]> = SmallVec::new();
-    v.extend(0..8);
-    v.grow(5);
-}
-
-#[test]
-#[should_panic]
-fn drain_overflow() {
-    let mut v: SmallVec<[u8; 8]> = smallvec![0];
-    v.drain(..=std::usize::MAX);
-}
-
-#[test]
-fn test_insert_from_slice() {
-    let mut v: SmallVec<[u8; 8]> = SmallVec::new();
-    for x in 0..4 {
-        v.push(x);
-    }
-    assert_eq!(v.len(), 4);
-    v.insert_from_slice(1, &[5, 6]);
-    assert_eq!(
-        &v.iter().map(|v| *v).collect::<Vec<_>>(),
-        &[0, 5, 6, 1, 2, 3]
-    );
-}
-
-#[test]
-fn test_extend_from_slice() {
-    let mut v: SmallVec<[u8; 8]> = SmallVec::new();
-    for x in 0..4 {
-        v.push(x);
-    }
-    assert_eq!(v.len(), 4);
-    v.extend_from_slice(&[5, 6]);
-    assert_eq!(
-        &v.iter().map(|v| *v).collect::<Vec<_>>(),
-        &[0, 1, 2, 3, 5, 6]
-    );
-}
-
-#[test]
-#[should_panic]
-fn test_drop_panic_smallvec() {
-    // This test should only panic once, and not double panic,
-    // which would mean a double drop
-    struct DropPanic;
-
-    impl Drop for DropPanic {
-        fn drop(&mut self) {
-            panic!("drop");
-        }
-    }
-
-    let mut v = SmallVec::<[_; 1]>::new();
-    v.push(DropPanic);
-}
-
-#[test]
-fn test_eq() {
-    let mut a: SmallVec<[u32; 2]> = SmallVec::new();
-    let mut b: SmallVec<[u32; 2]> = SmallVec::new();
-    let mut c: SmallVec<[u32; 2]> = SmallVec::new();
-    // a = [1, 2]
-    a.push(1);
-    a.push(2);
-    // b = [1, 2]
-    b.push(1);
-    b.push(2);
-    // c = [3, 4]
-    c.push(3);
-    c.push(4);
-
-    assert!(a == b);
-    assert!(a != c);
-}
-
-#[test]
-fn test_ord() {
-    let mut a: SmallVec<[u32; 2]> = SmallVec::new();
-    let mut b: SmallVec<[u32; 2]> = SmallVec::new();
-    let mut c: SmallVec<[u32; 2]> = SmallVec::new();
-    // a = [1]
-    a.push(1);
-    // b = [1, 1]
-    b.push(1);
-    b.push(1);
-    // c = [1, 2]
-    c.push(1);
-    c.push(2);
-
-    assert!(a < b);
-    assert!(b > a);
-    assert!(b < c);
-    assert!(c > b);
-}
-
-#[test]
-fn test_hash() {
-    use std::collections::hash_map::DefaultHasher;
-    use std::hash::Hash;
-
-    {
-        let mut a: SmallVec<[u32; 2]> = SmallVec::new();
-        let b = [1, 2];
-        a.extend(b.iter().cloned());
-        let mut hasher = DefaultHasher::new();
-        assert_eq!(a.hash(&mut hasher), b.hash(&mut hasher));
-    }
-    {
-        let mut a: SmallVec<[u32; 2]> = SmallVec::new();
-        let b = [1, 2, 11, 12];
-        a.extend(b.iter().cloned());
-        let mut hasher = DefaultHasher::new();
-        assert_eq!(a.hash(&mut hasher), b.hash(&mut hasher));
-    }
-}
-
-#[test]
-fn test_as_ref() {
-    let mut a: SmallVec<[u32; 2]> = SmallVec::new();
-    a.push(1);
-    assert_eq!(a.as_ref(), [1]);
-    a.push(2);
-    assert_eq!(a.as_ref(), [1, 2]);
-    a.push(3);
-    assert_eq!(a.as_ref(), [1, 2, 3]);
-}
-
-#[test]
-fn test_as_mut() {
-    let mut a: SmallVec<[u32; 2]> = SmallVec::new();
-    a.push(1);
-    assert_eq!(a.as_mut(), [1]);
-    a.push(2);
-    assert_eq!(a.as_mut(), [1, 2]);
-    a.push(3);
-    assert_eq!(a.as_mut(), [1, 2, 3]);
-    a.as_mut()[1] = 4;
-    assert_eq!(a.as_mut(), [1, 4, 3]);
-}
-
-#[test]
-fn test_borrow() {
-    use std::borrow::Borrow;
-
-    let mut a: SmallVec<[u32; 2]> = SmallVec::new();
-    a.push(1);
-    assert_eq!(a.borrow(), [1]);
-    a.push(2);
-    assert_eq!(a.borrow(), [1, 2]);
-    a.push(3);
-    assert_eq!(a.borrow(), [1, 2, 3]);
-}
-
-#[test]
-fn test_borrow_mut() {
-    use std::borrow::BorrowMut;
-
-    let mut a: SmallVec<[u32; 2]> = SmallVec::new();
-    a.push(1);
-    assert_eq!(a.borrow_mut(), [1]);
-    a.push(2);
-    assert_eq!(a.borrow_mut(), [1, 2]);
-    a.push(3);
-    assert_eq!(a.borrow_mut(), [1, 2, 3]);
-    BorrowMut::<[u32]>::borrow_mut(&mut a)[1] = 4;
-    assert_eq!(a.borrow_mut(), [1, 4, 3]);
-}
-
-#[test]
-fn test_from() {
-    assert_eq!(&SmallVec::<[u32; 2]>::from(&[1][..])[..], [1]);
-    assert_eq!(&SmallVec::<[u32; 2]>::from(&[1, 2, 3][..])[..], [1, 2, 3]);
-
-    let vec = vec![];
-    let small_vec: SmallVec<[u8; 3]> = SmallVec::from(vec);
-    assert_eq!(&*small_vec, &[]);
-    drop(small_vec);
-
-    let vec = vec![1, 2, 3, 4, 5];
-    let small_vec: SmallVec<[u8; 3]> = SmallVec::from(vec);
-    assert_eq!(&*small_vec, &[1, 2, 3, 4, 5]);
-    drop(small_vec);
-
-    let vec = vec![1, 2, 3, 4, 5];
-    let small_vec: SmallVec<[u8; 1]> = SmallVec::from(vec);
-    assert_eq!(&*small_vec, &[1, 2, 3, 4, 5]);
-    drop(small_vec);
-
-    let array = [1];
-    let small_vec: SmallVec<[u8; 1]> = SmallVec::from(array);
-    assert_eq!(&*small_vec, &[1]);
-    drop(small_vec);
-
-    let array = [99; 128];
-    let small_vec: SmallVec<[u8; 128]> = SmallVec::from(array);
-    assert_eq!(&*small_vec, vec![99u8; 128].as_slice());
-    drop(small_vec);
-}
-
-#[test]
-fn test_from_slice() {
-    assert_eq!(&SmallVec::<[u32; 2]>::from_slice(&[1][..])[..], [1]);
-    assert_eq!(
-        &SmallVec::<[u32; 2]>::from_slice(&[1, 2, 3][..])[..],
-        [1, 2, 3]
-    );
-}
-
-#[test]
-fn test_exact_size_iterator() {
-    let mut vec = SmallVec::<[u32; 2]>::from(&[1, 2, 3][..]);
-    assert_eq!(vec.clone().into_iter().len(), 3);
-    assert_eq!(vec.drain(..2).len(), 2);
-    assert_eq!(vec.into_iter().len(), 1);
-}
-
-#[test]
-fn test_into_iter_as_slice() {
-    let vec = SmallVec::<[u32; 2]>::from(&[1, 2, 3][..]);
-    let mut iter = vec.clone().into_iter();
-    assert_eq!(iter.as_slice(), &[1, 2, 3]);
-    assert_eq!(iter.as_mut_slice(), &[1, 2, 3]);
-    iter.next();
-    assert_eq!(iter.as_slice(), &[2, 3]);
-    assert_eq!(iter.as_mut_slice(), &[2, 3]);
-    iter.next_back();
-    assert_eq!(iter.as_slice(), &[2]);
-    assert_eq!(iter.as_mut_slice(), &[2]);
-}
-
-#[test]
-fn test_into_iter_clone() {
-    // Test that the cloned iterator yields identical elements and that it owns its own copy
-    // (i.e. no use after move errors).
-    let mut iter = SmallVec::<[u8; 2]>::from_iter(0..3).into_iter();
-    let mut clone_iter = iter.clone();
-    while let Some(x) = iter.next() {
-        assert_eq!(x, clone_iter.next().unwrap());
-    }
-    assert_eq!(clone_iter.next(), None);
-}
-
-#[test]
-fn test_into_iter_clone_partially_consumed_iterator() {
-    // Test that the cloned iterator only contains the remaining elements of the original iterator.
-    let mut iter = SmallVec::<[u8; 2]>::from_iter(0..3).into_iter().skip(1);
-    let mut clone_iter = iter.clone();
-    while let Some(x) = iter.next() {
-        assert_eq!(x, clone_iter.next().unwrap());
-    }
-    assert_eq!(clone_iter.next(), None);
-}
-
-#[test]
-fn test_into_iter_clone_empty_smallvec() {
-    let mut iter = SmallVec::<[u8; 2]>::new().into_iter();
-    let mut clone_iter = iter.clone();
-    assert_eq!(iter.next(), None);
-    assert_eq!(clone_iter.next(), None);
-}
-
-#[test]
-fn shrink_to_fit_unspill() {
-    let mut vec = SmallVec::<[u8; 2]>::from_iter(0..3);
-    vec.pop();
-    assert!(vec.spilled());
-    vec.shrink_to_fit();
-    assert!(!vec.spilled(), "shrink_to_fit will un-spill if possible");
-}
-
-#[test]
-fn test_into_vec() {
-    let vec = SmallVec::<[u8; 2]>::from_iter(0..2);
-    assert_eq!(vec.into_vec(), vec![0, 1]);
-
-    let vec = SmallVec::<[u8; 2]>::from_iter(0..3);
-    assert_eq!(vec.into_vec(), vec![0, 1, 2]);
-}
-
-#[test]
-fn test_into_inner() {
-    let vec = SmallVec::<[u8; 2]>::from_iter(0..2);
-    assert_eq!(vec.into_inner(), Ok([0, 1]));
-
-    let vec = SmallVec::<[u8; 2]>::from_iter(0..1);
-    assert_eq!(vec.clone().into_inner(), Err(vec));
-
-    let vec = SmallVec::<[u8; 2]>::from_iter(0..3);
-    assert_eq!(vec.clone().into_inner(), Err(vec));
-}
-
-#[test]
-fn test_from_vec() {
-    let vec = vec![];
-    let small_vec: SmallVec<[u8; 3]> = SmallVec::from_vec(vec);
-    assert_eq!(&*small_vec, &[]);
-    drop(small_vec);
-
-    let vec = vec![];
-    let small_vec: SmallVec<[u8; 1]> = SmallVec::from_vec(vec);
-    assert_eq!(&*small_vec, &[]);
-    drop(small_vec);
-
-    let vec = vec![1];
-    let small_vec: SmallVec<[u8; 3]> = SmallVec::from_vec(vec);
-    assert_eq!(&*small_vec, &[1]);
-    drop(small_vec);
-
-    let vec = vec![1, 2, 3];
-    let small_vec: SmallVec<[u8; 3]> = SmallVec::from_vec(vec);
-    assert_eq!(&*small_vec, &[1, 2, 3]);
-    drop(small_vec);
-
-    let vec = vec![1, 2, 3, 4, 5];
-    let small_vec: SmallVec<[u8; 3]> = SmallVec::from_vec(vec);
-    assert_eq!(&*small_vec, &[1, 2, 3, 4, 5]);
-    drop(small_vec);
-
-    let vec = vec![1, 2, 3, 4, 5];
-    let small_vec: SmallVec<[u8; 1]> = SmallVec::from_vec(vec);
-    assert_eq!(&*small_vec, &[1, 2, 3, 4, 5]);
-    drop(small_vec);
-}
-
-#[test]
-fn test_retain() {
-    // Test inline data storate
-    let mut sv: SmallVec<[i32; 5]> = SmallVec::from_slice(&[1, 2, 3, 3, 4]);
-    sv.retain(|&mut i| i != 3);
-    assert_eq!(sv.pop(), Some(4));
-    assert_eq!(sv.pop(), Some(2));
-    assert_eq!(sv.pop(), Some(1));
-    assert_eq!(sv.pop(), None);
-
-    // Test spilled data storage
-    let mut sv: SmallVec<[i32; 3]> = SmallVec::from_slice(&[1, 2, 3, 3, 4]);
-    sv.retain(|&mut i| i != 3);
-    assert_eq!(sv.pop(), Some(4));
-    assert_eq!(sv.pop(), Some(2));
-    assert_eq!(sv.pop(), Some(1));
-    assert_eq!(sv.pop(), None);
-
-    // Test that drop implementations are called for inline.
-    let one = Rc::new(1);
-    let mut sv: SmallVec<[Rc<i32>; 3]> = SmallVec::new();
-    sv.push(Rc::clone(&one));
-    assert_eq!(Rc::strong_count(&one), 2);
-    sv.retain(|_| false);
-    assert_eq!(Rc::strong_count(&one), 1);
-
-    // Test that drop implementations are called for spilled data.
-    let mut sv: SmallVec<[Rc<i32>; 1]> = SmallVec::new();
-    sv.push(Rc::clone(&one));
-    sv.push(Rc::new(2));
-    assert_eq!(Rc::strong_count(&one), 2);
-    sv.retain(|_| false);
-    assert_eq!(Rc::strong_count(&one), 1);
-}
-
-#[test]
-fn test_dedup() {
-    let mut dupes: SmallVec<[i32; 5]> = SmallVec::from_slice(&[1, 1, 2, 3, 3]);
-    dupes.dedup();
-    assert_eq!(&*dupes, &[1, 2, 3]);
-
-    let mut empty: SmallVec<[i32; 5]> = SmallVec::new();
-    empty.dedup();
-    assert!(empty.is_empty());
-
-    let mut all_ones: SmallVec<[i32; 5]> = SmallVec::from_slice(&[1, 1, 1, 1, 1]);
-    all_ones.dedup();
-    assert_eq!(all_ones.len(), 1);
-
-    let mut no_dupes: SmallVec<[i32; 5]> = SmallVec::from_slice(&[1, 2, 3, 4, 5]);
-    no_dupes.dedup();
-    assert_eq!(no_dupes.len(), 5);
-}
-
-#[test]
-fn test_resize() {
-    let mut v: SmallVec<[i32; 8]> = SmallVec::new();
-    v.push(1);
-    v.resize(5, 0);
-    assert_eq!(v[..], [1, 0, 0, 0, 0][..]);
-
-    v.resize(2, -1);
-    assert_eq!(v[..], [1, 0][..]);
-}
-
-#[cfg(feature = "write")]
-#[test]
-fn test_write() {
-    use std::io::Write;
-
-    let data = [1, 2, 3, 4, 5];
-
-    let mut small_vec: SmallVec<[u8; 2]> = SmallVec::new();
-    let len = small_vec.write(&data[..]).unwrap();
-    assert_eq!(len, 5);
-    assert_eq!(small_vec.as_ref(), data.as_ref());
-
-    let mut small_vec: SmallVec<[u8; 2]> = SmallVec::new();
-    small_vec.write_all(&data[..]).unwrap();
-    assert_eq!(small_vec.as_ref(), data.as_ref());
-}
-
-#[cfg(feature = "serde")]
-#[test]
-fn test_serde() {
-    use bincode::{config, deserialize};
-    let mut small_vec: SmallVec<[i32; 2]> = SmallVec::new();
-    small_vec.push(1);
-    let encoded = config().limit(100).serialize(&small_vec).unwrap();
-    let decoded: SmallVec<[i32; 2]> = deserialize(&encoded).unwrap();
-    assert_eq!(small_vec, decoded);
-    small_vec.push(2);
-    // Spill the vec
-    small_vec.push(3);
-    small_vec.push(4);
-    // Check again after spilling.
-    let encoded = config().limit(100).serialize(&small_vec).unwrap();
-    let decoded: SmallVec<[i32; 2]> = deserialize(&encoded).unwrap();
-    assert_eq!(small_vec, decoded);
-}
-
-#[test]
-fn grow_to_shrink() {
-    let mut v: SmallVec<[u8; 2]> = SmallVec::new();
-    v.push(1);
-    v.push(2);
-    v.push(3);
-    assert!(v.spilled());
-    v.clear();
-    // Shrink to inline.
-    v.grow(2);
-    assert!(!v.spilled());
-    assert_eq!(v.capacity(), 2);
-    assert_eq!(v.len(), 0);
-    v.push(4);
-    assert_eq!(v[..], [4]);
-}
-
-#[test]
-fn resumable_extend() {
-    let s = "a b c";
-    // This iterator yields: (Some('a'), None, Some('b'), None, Some('c')), None
-    let it = s
-        .chars()
-        .scan(0, |_, ch| if ch.is_whitespace() { None } else { Some(ch) });
-    let mut v: SmallVec<[char; 4]> = SmallVec::new();
-    v.extend(it);
-    assert_eq!(v[..], ['a']);
-}
-
-// #139
-#[test]
-fn uninhabited() {
-    enum Void {}
-    let _sv = SmallVec::<[Void; 8]>::new();
-}
-
-#[test]
-fn grow_spilled_same_size() {
-    let mut v: SmallVec<[u8; 2]> = SmallVec::new();
-    v.push(0);
-    v.push(1);
-    v.push(2);
-    assert!(v.spilled());
-    assert_eq!(v.capacity(), 4);
-    // grow with the same capacity
-    v.grow(4);
-    assert_eq!(v.capacity(), 4);
-    assert_eq!(v[..], [0, 1, 2]);
-}
-
-#[cfg(feature = "const_generics")]
-#[test]
-fn const_generics() {
-    let _v = SmallVec::<[i32; 987]>::default();
-}
-
-#[cfg(feature = "const_new")]
-#[test]
-fn const_new() {
-    let v = const_new_inner();
-    assert_eq!(v.capacity(), 4);
-    assert_eq!(v.len(), 0);
-    let v = const_new_inline_sized();
-    assert_eq!(v.capacity(), 4);
-    assert_eq!(v.len(), 4);
-    assert_eq!(v[0], 1);
-    let v = const_new_inline_args();
-    assert_eq!(v.capacity(), 2);
-    assert_eq!(v.len(), 2);
-    assert_eq!(v[0], 1);
-    assert_eq!(v[1], 4);
-}
-#[cfg(feature = "const_new")]
-const fn const_new_inner() -> SmallVec<[i32; 4]> {
-    SmallVec::<[i32; 4]>::new_const()
-}
-#[cfg(feature = "const_new")]
-const fn const_new_inline_sized() -> SmallVec<[i32; 4]> {
-    crate::smallvec_inline![1; 4]
-}
-#[cfg(feature = "const_new")]
-const fn const_new_inline_args() -> SmallVec<[i32; 2]> {
-    crate::smallvec_inline![1, 4]
-}
-
-#[test]
-fn empty_macro() {
-    let _v: SmallVec<[u8; 1]> = smallvec![];
-}
-
-#[test]
-fn zero_size_items() {
-    SmallVec::<[(); 0]>::new().push(());
-}
-
-#[test]
-fn test_insert_many_overflow() {
-    let mut v: SmallVec<[u8; 1]> = SmallVec::new();
-    v.push(123);
-
-    // Prepare an iterator with small lower bound
-    let iter = (0u8..5).filter(|n| n % 2 == 0);
-    assert_eq!(iter.size_hint().0, 0);
-
-    v.insert_many(0, iter);
-    assert_eq!(&*v, &[0, 2, 4, 123]);
-}
-
-#[test]
-fn test_clone_from() {
-    let mut a: SmallVec<[u8; 2]> = SmallVec::new();
-    a.push(1);
-    a.push(2);
-    a.push(3);
-
-    let mut b: SmallVec<[u8; 2]> = SmallVec::new();
-    b.push(10);
-
-    let mut c: SmallVec<[u8; 2]> = SmallVec::new();
-    c.push(20);
-    c.push(21);
-    c.push(22);
-
-    a.clone_from(&b);
-    assert_eq!(&*a, &[10]);
-
-    b.clone_from(&c);
-    assert_eq!(&*b, &[20, 21, 22]);
-}
-
-#[test]
-fn test_size() {
-    use core::mem::size_of;
-    assert_eq!(24, size_of::<SmallVec<[u8; 8]>>());
-}
-
-#[cfg(feature = "drain_filter")]
-#[test]
-fn drain_filter() {
-    let mut a: SmallVec<[u8; 2]> = smallvec![1u8, 2, 3, 4, 5, 6, 7, 8];
-
-    let b: SmallVec<[u8; 2]> = a.drain_filter(|x| *x % 3 == 0).collect();
-
-    assert_eq!(a, SmallVec::<[u8; 2]>::from_slice(&[1u8, 2, 4, 5, 7, 8]));
-    assert_eq!(b, SmallVec::<[u8; 2]>::from_slice(&[3u8, 6]));
-}
-
-#[cfg(feature = "drain_keep_rest")]
-#[test]
-fn drain_keep_rest() {
-    let mut a: SmallVec<[i32; 3]> = smallvec![1i32, 2, 3, 4, 5, 6, 7, 8];
-    let mut df = a.drain_filter(|x| *x % 2 == 0);
-
-    assert_eq!(df.next().unwrap(), 2);
-    assert_eq!(df.next().unwrap(), 4);
-
-    df.keep_rest();
-
-    assert_eq!(a, SmallVec::<[i32; 3]>::from_slice(&[1i32, 3, 5, 6, 7, 8]));
-}