use core::borrow::{Borrow, BorrowMut};
use core::marker::Destruct;
use core::ops::{Index, IndexMut, Range, RangeFrom, RangeFull, RangeInclusive, RangeTo, RangeToInclusive, Try};
use array_trait::AsSlice;
use array_trait::length::Length;
use crate::{AsBulk, Bulk, CollectionAdapter, CollectionStrategy, FromBulk, IntoBulk, TryCollectionStrategy};
pub(crate) const trait Collection<T, L: Length<Elem = ()> + ?Sized> = ~const IntoBulk<Item = T, IntoBulk: ~const Bulk<Item = T>>
+ ~const AsBulk
+ ~const AsSlice<Elem = T>
+ ~const AsRef<[T]>
+ ~const AsMut<[T]>
+ ~const Borrow<[T]>
+ ~const BorrowMut<[T]>
+ ~const IndexMut<usize, Output = <[T] as Index<usize>>::Output>
+ ~const IndexMut<Range<usize>, Output = <[T] as Index<Range<usize>>>::Output>
+ ~const IndexMut<RangeInclusive<usize>, Output = <[T] as Index<RangeInclusive<usize>>>::Output>
+ ~const IndexMut<RangeFrom<usize>, Output = <[T] as Index<RangeFrom<usize>>>::Output>
+ ~const IndexMut<RangeTo<usize>, Output = <[T] as Index<RangeTo<usize>>>::Output>
+ ~const IndexMut<RangeToInclusive<usize>, Output = <[T] as Index<RangeToInclusive<usize>>>::Output>
+ ~const IndexMut<RangeFull, Output = <[T] as Index<RangeFull>>::Output>;
#[rustc_on_unimplemented(
message = "an array cannot be collected from dynamically sized bulk of length `{Self}`",
label = "an array cannot be collected from bulk"
)]
pub const trait Nearest: Length<Elem = ()>
{
#[allow(private_bounds)]
type Nearest<B>: ~const Collection<B::Item, Self> + ~const FromBulk<Self::NearestStrategy<B>>
where
B: ~const Bulk<MinLength: Length<Intersect<B::MaxLength> = Self>, Item: ~const Destruct>;
#[allow(private_bounds)]
type TryNearest<B>: ~const Collection<<B::Item as Try>::Output, Self> + ~const FromBulk<Self::TryNearestStrategy<B>>
where
B: ~const Bulk<MinLength: Length<Intersect<B::MaxLength> = Self>, Item: ~const Try<Output: ~const Destruct>>;
#[allow(private_bounds)]
type NearestStrategy<B>: ~const CollectionStrategy<B::MinLength, B::MaxLength, Self::Nearest<B>> + CollectionAdapter<Elem = B::Item> + ?Sized
where
B: ~const Bulk<MinLength: Length<Intersect<B::MaxLength> = Self>, Item: ~const Destruct>;
#[allow(private_bounds)]
type TryNearestStrategy<B>: ~const TryCollectionStrategy<B::MinLength, B::MaxLength, Self::TryNearest<B>> + CollectionAdapter<Elem = <B::Item as Try>::Output> + ?Sized
where
B: ~const Bulk<MinLength: Length<Intersect<B::MaxLength> = Self>, Item: ~const Try<Output: ~const Destruct>>;
}
#[cfg(feature = "alloc")]
impl Nearest for [()]
{
type Nearest<B> = alloc::vec::Vec<B::Item>
where
B: Bulk<MinLength: Length<Intersect<B::MaxLength> = Self>>;
type TryNearest<B> = alloc::vec::Vec<<B::Item as Try>::Output>
where
B: Bulk<MinLength: Length<Intersect<B::MaxLength> = Self>, Item: Try>;
type NearestStrategy<B> = [B::Item]
where
B: Bulk<MinLength: Length<Intersect<B::MaxLength> = Self>>;
type TryNearestStrategy<B> = [<B::Item as Try>::Output]
where
B: Bulk<MinLength: Length<Intersect<B::MaxLength> = Self>, Item: Try>;
}
const impl<const N: usize> Nearest for [(); N]
{
type Nearest<B> = [B::Item; N]
where
B: ~const Bulk<MinLength: Length<Intersect<B::MaxLength> = Self>, Item: ~const Destruct>;
type TryNearest<B> = [<B::Item as Try>::Output; N]
where
B: ~const Bulk<MinLength: Length<Intersect<B::MaxLength> = Self>, Item: ~const Try<Output: ~const Destruct>>;
type NearestStrategy<B> = [B::Item; N]
where
B: ~const Bulk<MinLength: Length<Intersect<B::MaxLength> = Self>, Item: ~const Destruct>;
type TryNearestStrategy<B> = [<B::Item as Try>::Output; N]
where
B: ~const Bulk<MinLength: Length<Intersect<B::MaxLength> = Self>, Item: ~const Try<Output: ~const Destruct>>;
}
pub trait CollectNearest = Bulk<MinLength: Length<Intersect<<Self as Bulk>::MaxLength>: Nearest>>;