Struct ScopedAllocator 

pub struct ScopedAllocator<'a> { /* private fields */ }

A dynamic wrapper around an AllocatorCore that provides the guarantee that all allocated object are tied to a given scope.

Additionally, this can allow the use of an allocator that is not Clone in contexts where a clonable allocator is needed (provided the scoping limitations are acceptable).

Implementations

impl<'a> ScopedAllocator<'a>

pub const fn new<T>(allocator: &'a T) -> Self

where T: AllocatorCore + Debug,

Construct a new ScopedAllocator around the provided allocator.

impl ScopedAllocator<'static>

pub const fn global() -> Self

A convenience method for construcing a ScopedAllocator around the GlobalAllocator for cases where a more specialized allocator is not needed.

Trait Implementations

impl AllocatorCore for ScopedAllocator<'_>

fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocatorError>

Allocate space for at least layout.size() bytes aligned to at least layout.align(). Returns an error if the requested size or alignment is not possible with this allocator.

unsafe fn deallocate(&self, ptr: NonNull<[u8]>, layout: Layout)

Deallocation companion to allocate.

impl<'a> Clone for ScopedAllocator<'a>

fn clone(&self) -> ScopedAllocator<'a>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<A> CompressIntoWith<&[f32], Slice<&mut [f32], Mut<'_, FullQueryMeta>>, ScopedAllocator<'_>> for SphericalQuantizer<A>

where A: Allocator,

fn compress_into_with( &self, from: &[f32], into: FullQueryMut<'_>, allocator: ScopedAllocator<'_>, ) -> Result<(), Self::Error>

Compress the input vector from into the bitslice into.

Error

Returns an error if

• The input contains NaN.
• from.len() != self.dim(): Vector to be compressed must have the same dimensionality as the quantizer.
• into.len() != self.output_dim(): Compressed vector must have the same dimensionality as the output of the distance-preserving transform. Importantely, this may be different than self.dim() and should be retrieved from self.output_dim().

type Error = CompressionError

Errors that may occur during compression.

impl<const NBITS: usize, A> CompressIntoWith<&[f32], VectorBase<NBITS, Unsigned, MutSlicePtr<'_, u8>, Mut<'_, DataMeta>>, ScopedAllocator<'_>> for SphericalQuantizer<A>

where A: Allocator, Unsigned: Representation<NBITS>, for<'a> DataMut<'a, NBITS>: FinishCompressing,

fn compress_into_with( &self, from: &[f32], into: DataMut<'_, NBITS>, allocator: ScopedAllocator<'_>, ) -> Result<(), Self::Error>

Compress the input vector from into the bitslice into.

Error

Returns an error if

• The input contains NaN.
• from.len() != self.dim(): Vector to be compressed must have the same dimensionality as the quantizer.
• into.len() != self.output_dim(): Compressed vector must have the same dimensionality as the output of the distance-preserving transform. Importantely, this may be different than self.dim() and should be retrieved from self.output_dim().

type Error = CompressionError

Errors that may occur during compression.

impl<const NBITS: usize, Perm, A> CompressIntoWith<&[f32], VectorBase<NBITS, Unsigned, MutSlicePtr<'_, u8>, Mut<'_, QueryMeta>, Perm>, ScopedAllocator<'_>> for SphericalQuantizer<A>

where Unsigned: Representation<NBITS>, Perm: PermutationStrategy<NBITS>, A: Allocator,

fn compress_into_with( &self, from: &[f32], into: QueryMut<'_, NBITS, Perm>, allocator: ScopedAllocator<'_>, ) -> Result<(), Self::Error>

Compress the input vector from into the bitslice into.

Error

Returns an error if

• The input contains NaN.
• from.len() != self.dim(): Vector to be compressed must have the same dimensionality as the quantizer.
• into.len() != self.output_dim(): Compressed vector must have the same dimensionality as the output of the distance-preserving transform. Importantely, this may be different than self.dim() and should be retrieved from self.output_dim().

type Error = CompressionError

Errors that may occur during compression.

impl<'a> Debug for ScopedAllocator<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a> Copy for ScopedAllocator<'a>