Struct LayerBitset 

pub struct LayerBitset(/* private fields */);

Fixed-capacity bitset of layers for modifier / conditional-layer state.

Bit i corresponds to layer index i. Capacity is Self::BITS layers (indices 0..=[MAX_BITSET_LAYER]).

This is a thin no_std newtype over u32 so keymap const data can build bitsets without a heap or an external bitset crate. Widening capacity later is a storage-type change (u64, u128, or multi-limb) behind the same API.

Implementations

impl LayerBitset

pub const BITS: usize = 32

Number of representable layer bits.

pub const EMPTY: LayerBitset

Empty bitset (no layers selected).

pub const ALL: LayerBitset

Bitset with every representable layer bit set.

pub const fn from_bits(bits: u32) -> LayerBitset

Construct from raw bits (bit i = layer i).

pub const fn bits(self) -> u32

Raw bit pattern.

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

Returns true if bit index is set.

pub const fn insert(self, index: usize) -> LayerBitset

Returns a copy with bit index set, if index is in range.

pub const fn remove(self, index: usize) -> LayerBitset

Returns a copy with bit index cleared, if index is in range.

pub const fn is_superset_of(self, other: LayerBitset) -> bool

Returns true if every bit set in other is also set in self.

Trait Implementations

impl BitAnd for LayerBitset

type Output = LayerBitset

The resulting type after applying the & operator.

fn bitand(self, rhs: LayerBitset) -> <LayerBitset as BitAnd>::Output

Performs the & operation.

impl BitOr for LayerBitset

type Output = LayerBitset

The resulting type after applying the | operator.

fn bitor(self, rhs: LayerBitset) -> <LayerBitset as BitOr>::Output

Performs the | operation.

impl Clone for LayerBitset

fn clone(&self) -> LayerBitset

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for LayerBitset

impl Debug for LayerBitset

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

Formats the value using the given formatter.

impl Default for LayerBitset

fn default() -> LayerBitset

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for LayerBitset

fn deserialize<__D>( __deserializer: __D, ) -> Result<LayerBitset, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for LayerBitset

impl From<u32> for LayerBitset

fn from(bits: u32) -> LayerBitset

Converts to this type from the input type.

impl Not for LayerBitset

type Output = LayerBitset

The resulting type after applying the ! operator.

fn not(self) -> <LayerBitset as Not>::Output

Performs the unary ! operation.

impl PartialEq for LayerBitset

fn eq(&self, other: &LayerBitset) -> 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 LayerBitset