Struct Bitlist 

pub struct Bitlist<const N: u64> { /* private fields */ }

SSZ Bitlist with a compile-time bit cap of N.

Wire format: packed bits (LSB-first within bytes), followed by a sentinel 1 bit immediately after the data bits. The sentinel marks the end of the logical bitstream and is not part of the bit content.

Implementations

impl<const N: u64> Bitlist<N>

pub fn new() -> Self

Build an empty bitlist.

pub fn from_bits(bits: &[bool]) -> Result<Self, DecodeError>

Build from a logical bit vector.

pub fn len(&self) -> u64

Logical bit length.

pub fn is_empty(&self) -> bool

true iff there are no bits.

pub fn get(&self, i: u64) -> Option<bool>

Get bit i. Returns None if i >= len.

pub fn data_bytes(&self) -> &[u8]

Borrow the raw packed data bytes (without the sentinel layer).

Trait Implementations

impl<const N: u64> Clone for Bitlist<N>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<const N: u64> Debug for Bitlist<N>

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

Formats the value using the given formatter.

impl<const N: u64> Decode for Bitlist<N>

fn is_ssz_fixed_len() -> bool

true iff this type is fixed-length.

fn ssz_fixed_len() -> usize

Number of bytes this type occupies in the fixed-length portion of a container encoding. Variable-length types return BYTES_PER_LENGTH_OFFSET.

fn from_ssz_bytes(bytes: &[u8]) -> Result<Self, DecodeError>

Decode a full instance from bytes, rejecting trailing input.

impl<const N: u64> Default for Bitlist<N>

fn default() -> Self

Returns the “default value” for a type.

impl<const N: u64> Encode for Bitlist<N>

fn is_ssz_fixed_len() -> bool

true iff this type is fixed-length (no variable-length fields).

fn ssz_fixed_len() -> usize

Number of bytes this type occupies in the fixed-length portion of a container encoding. For variable-length types this returns BYTES_PER_LENGTH_OFFSET (i.e. the size of the offset slot).

fn ssz_bytes_len(&self) -> usize

Total size of self when serialized.

fn ssz_append(&self, buf: &mut Vec<u8>)

Append the encoding of self to buf.

fn is_basic_type() -> bool

true for “basic” SSZ types (uintN, bool), which pack adjacent elements into shared 32-byte chunks for merkleization. Composite types (containers, lists, structs) return false (the default).

fn as_ssz_bytes(&self) -> Vec<u8>

Serialize into a fresh Vec<u8> allocated through the global allocator.

impl<const N: u64> HashTreeRoot for Bitlist<N>

fn hash_tree_root<D: Digest<OutputSize = U32>>(&self) -> [u8; 32]

Compute the hash tree root using D as the underlying hash.

impl<const N: u64> PartialEq for Bitlist<N>

fn eq(&self, other: &Self) -> 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<const N: u64> Eq for Bitlist<N>