Struct everscale_types::cell::LevelMask

pub struct LevelMask(_);

de Brujn level presence bitset.

Implementations

impl LevelMask

pub const EMPTY: Self = _

Empty bitset.

pub const MAX_LEVEL: u8 = 3u8

Max de Brujn level.

pub const fn new(mask: u8) -> Self

Constructs a new level mask, truncating extra bits.

pub const fn is_empty(self) -> bool

Returns true if there are no levels in mask.

pub const unsafe fn new_unchecked(mask: u8) -> Self

Constructs a new level mask from the provided byte as is.

Safety

The following must be true:

• Mask must be in range 0b000..=0b111.

pub const fn from_level(level: u8) -> Self

Creates a sufficient mask for the specified level.

NOTE: levels > 3 has no effect (mask will always be 0b111).

pub const fn level(self) -> u8

Counts presented higher hashes.

pub const fn hash_index(self, level: u8) -> u8

Computes hash index for the specified level.

pub const fn virtualize(self, offset: u8) -> Self

Creates a new mask, shifted by the offset.

pub const fn to_byte(self) -> u8

Encodes level mask as byte.

Trait Implementations

impl BitOr<LevelMask> for LevelMask

type Output = LevelMask

The resulting type after applying the | operator.

fn bitor(self, rhs: Self) -> Self::Output

Performs the | operation.

impl BitOrAssign<LevelMask> for LevelMask

fn bitor_assign(&mut self, rhs: Self)

Performs the |= operation.

impl Clone for LevelMask

fn clone(&self) -> LevelMask

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LevelMask

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

Formats the value using the given formatter.

impl From<LevelMask> for u8

fn from(m: LevelMask) -> u8

Converts to this type from the input type.

impl Hash for LevelMask

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<LevelMask> for LevelMask

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl PartialEq<u8> for LevelMask

fn eq(&self, other: &u8) -> bool

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for LevelMask

impl Eq for LevelMask

impl StructuralEq for LevelMask

impl StructuralPartialEq for LevelMask