Struct ArenaSlice 

pub struct ArenaSlice {
    pub region_index: usize,
    pub start: usize,
    pub end: usize,
}

A handle to a contiguous byte range inside a TensorArena region.

Validity is not enforced by the type system — the caller must not use an ArenaSlice after calling TensorArena::reset_all if new allocations have been made that may overlap.

Fields

region_index: usize

Index of the owning region in TensorArena::regions.

start: usize

Start byte offset (inclusive) within the region slab.

end: usize

End byte offset (exclusive) within the region slab.

Implementations

impl ArenaSlice

pub fn len(&self) -> usize

Number of bytes in this slice.

pub fn is_empty(&self) -> bool

Returns true if the slice covers zero bytes.

pub fn write_f32( &self, arena: &mut TensorArena, values: &[f32], ) -> Result<(), ArenaError>

Write values (as raw bytes) into this slice’s range in the arena.

Errors

• ArenaError::RegionNotFound — if self.region_index is out of bounds.
• ArenaError::SizeMismatch — if values.len() * 4 != self.len().

pub fn read_f32<'a>(&self, arena: &'a TensorArena) -> &'a [f32]

Read a &[f32] from this slice’s range in the arena.

Panics

Panics if self.region_index is out of bounds or if the byte range is not properly aligned / sized for f32. In production code the caller should ensure the slice was created by TensorArena::allocate with a size that is a multiple of 4.

Trait Implementations

impl Clone for ArenaSlice

fn clone(&self) -> ArenaSlice

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ArenaSlice

impl Debug for ArenaSlice

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

Formats the value using the given formatter.

impl Eq for ArenaSlice

impl PartialEq for ArenaSlice

fn eq(&self, other: &ArenaSlice) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ArenaSlice