Struct BlobCellMask 

pub struct BlobCellMask { /* private fields */ }

Available on crate feature kzg-sidecar only.

Cell indices requested by engine_getBlobsV4.

Implementations

impl BlobCellMask

pub fn new(indices_bitarray: B128) -> Self

Creates a mask from the Engine API 16-byte, big-endian bitarray.

pub const fn from_bits(value: u128) -> Self

Creates a mask from the raw bit representation.

pub const fn bits(self) -> u128

Returns the raw bit representation.

pub const fn count(self) -> usize

Returns the number of selected cells.

pub const fn contains(self, index: usize) -> bool

Returns true if the given cell index is selected.

pub fn selected_indices(self) -> impl Iterator<Item = usize>

Iterates selected cell indices in ascending order.

pub fn matching_cells_from_computed_cells( self, cells: &[Cell], ) -> Option<Vec<Cell>>

Returns the selected cells from precomputed blob-major flattened cells.

The cells slice must use the layout returned by compute_cells: each blob contributes one contiguous CELLS_PER_EXT_BLOB-cell chunk, so cells.len() must be evenly divisible by CELLS_PER_EXT_BLOB (128). This method returns None if cells ends with an incomplete chunk.

The returned cells keep the same chunk order and include only the cell indices selected by this mask.

Trait Implementations

impl Clone for BlobCellMask

fn clone(&self) -> BlobCellMask

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for BlobCellMask

impl Debug for BlobCellMask

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

Formats the value using the given formatter.

impl Default for BlobCellMask

fn default() -> BlobCellMask

Returns the “default value” for a type.

impl Eq for BlobCellMask

impl Hash for BlobCellMask

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for BlobCellMask

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for BlobCellMask

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes