Struct ViewData

pub struct ViewData<'a, T> { /* private fields */ }

Storage for an immutable tensor view.

This has the same representation in memory as a slice: a pointer and a length. Unlike a slice it allows for other mutable storage to reference memory ranges that overlap with this one. It is up to APIs built on top of this to ensure uniqueness of mutable element references.

Implementations

impl<'a, T> ViewData<'a, T>

pub unsafe fn get(&self, offset: usize) -> Option<&'a T>

Variant of Storage::get which preserves lifetimes.

Safety

See Storage::get.

pub unsafe fn get_unchecked(&self, offset: usize) -> &'a T

Variant of Storage::get_unchecked which preserves lifetimes.

Safety

See Storage::get_unchecked.

pub fn slice(&self, range: Range<usize>) -> ViewData<'a, T>

Variant of Storage::slice which preserves lifetimes.

pub fn view(&self) -> ViewData<'a, T>

Variant of Storage::view which preserves lifetimes.

pub unsafe fn as_slice(&self) -> &'a [T]

Return the contents of the storage as a slice.

Safety

The caller must ensure that no mutable references exist to any element in the storage.

Trait Implementations

impl<'a, T> AssumeInit for ViewData<'a, MaybeUninit<T>>

type Output = ViewData<'a, T>

The type of the initialized storage.

unsafe fn assume_init(self) -> Self::Output

Cast self to a collection of initialized values.

impl<T> Clone for ViewData<'_, T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a, T: Debug> Debug for ViewData<'a, T>

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

Formats the value using the given formatter.

impl<T> Storage for ViewData<'_, T>

const MUTABLE: bool = false

True if this storage allows mutable access via StorageMut. This is used to determine if a layout can be safely used with a storage. Layouts where multiple indices map to the same offset must not be used with mutable storage.

type Elem = T

The element type.

fn len(&self) -> usize

Return the number of elements in the storage.

fn as_ptr(&self) -> *const T

Return a pointer to the first element in the storage.

fn is_empty(&self) -> bool

Return true if the storage contains no elements.

unsafe fn get(&self, offset: usize) -> Option<&Self::Elem>

Return the element at a given offset, or None if offset >= self.len().

unsafe fn get_unchecked(&self, offset: usize) -> &Self::Elem

Return a reference to the element at offset.

fn slice(&self, range: Range<usize>) -> ViewData<'_, Self::Elem>

Return a view of a sub-region of the storage.

fn view(&self) -> ViewData<'_, Self::Elem>

Return an immutable view of this storage.

unsafe fn as_slice(&self) -> &[Self::Elem]

Return the contents of the storage as a slice.

impl<T> Copy for ViewData<'_, T>

impl<T> Send for ViewData<'_, T>

impl<T> Sync for ViewData<'_, T>