Struct ErasedRawStridedRef 

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

Borrowed dtype-erased raw strided input layout.

dims, strides, and offset are expressed in dtype elements, not bytes.

Implementations

impl<'a> ErasedRawStridedRef<'a>

pub fn from_slice<T: KernelStorageElement>( data: &'a [T], dims: &'a [usize], strides: &'a [isize], offset: isize, ) -> Result<Self>

Create an erased input descriptor from typed, initialized storage.

Errors

Returns StridedError::StrideLengthMismatch when dims and strides have different lengths, and StridedError::OffsetOverflow when a reachable offset is not representable: dim - 1 of a non-unit extent does not fit isize, a stride times that last index or the accumulated offsets overflow isize or go negative, or the highest reachable offset is not below the buffer length. A layout with a zero extent skips this check. The byte-length and alignment checks cannot fail for a typed &[T].

pub unsafe fn from_raw_parts( dtype: KernelDType, data: NonNull<u8>, byte_len: usize, dims: &'a [usize], strides: &'a [isize], offset: isize, ) -> Result<Self>

Construct from erased storage.

Safety

data must be the start of an allocation aligned for dtype; the allocation must contain byte_len initialized, readable bytes for 'a, and every byte extent must represent valid values for dtype. The allocation and metadata must outlive 'a; no mutable alias may exist while this descriptor is used. Alignment is an allocation property and must not be inferred from the observed address alone.

Errors

Returns StridedError::ByteLengthMismatch when byte_len is not a whole number of dtype elements, and StridedError::DataAlignmentMismatch when a non-empty data is not aligned for dtype. Returns StridedError::StrideLengthMismatch when dims and strides have different lengths, and StridedError::OffsetOverflow when a reachable offset is not representable: dim - 1 of a non-unit extent does not fit isize, a stride times that last index or the accumulated offsets overflow isize or go negative, or the highest reachable offset is not below the storage length. A layout with a zero extent skips this check. Bool bytes are the caller’s responsibility here, per the safety contract.

pub fn data_as<T: KernelStorageElement>(&self) -> Result<&[T]>

Borrow the initialized storage as its concrete scalar type.

Errors

Returns StridedError::DTypeMismatch when T is not the descriptor’s dtype.

pub fn dtype(&self) -> KernelDType

pub fn dims(&self) -> &'a [usize]

pub fn strides(&self) -> &'a [isize]

pub fn offset(&self) -> isize

Trait Implementations

impl<'a> Clone for ErasedRawStridedRef<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for ErasedRawStridedRef<'a>

impl Debug for ErasedRawStridedRef<'_>

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

Formats the value using the given formatter.