Struct Channel 

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

Identifies an invalidation domain (layout, paint, accessibility, etc.).

A channel is a lightweight handle (a single u8) that represents a specific invalidation domain. Dependencies and invalidation state are tracked per-channel, allowing independent invalidation of different concerns.

Example

use invalidation::Channel;

// Define your own channels as constants
const LAYOUT: Channel = Channel::new(0);
const PAINT: Channel = Channel::new(1);
const A11Y: Channel = Channel::new(2);
const STYLE: Channel = Channel::new(3);

See Also

• ChannelSet: A compact set of channels.
• InvalidationSet: Tracks invalidated keys per channel.
• InvalidationGraph: Stores dependencies per channel.
• InvalidationTracker: Coordinator for graph, set, cascade, and cross-channel workflows.

Implementations

impl Channel

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

Creates a new channel with the given index.

Panics

Panics if index >= 64, as ChannelSet only supports 64 channels.

pub const fn index(self) -> u8

Returns the index of this channel.

pub const fn into_set(self) -> ChannelSet

Converts this channel into a single-element ChannelSet.

Trait Implementations

impl Clone for Channel

fn clone(&self) -> Channel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Channel

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

Formats the value using the given formatter.

impl From<Channel> for ChannelSet

fn from(channel: Channel) -> Self

Converts to this type from the input type.

impl Hash for Channel

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 Channel

fn eq(&self, other: &Channel) -> 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 Copy for Channel

impl Eq for Channel

impl StructuralPartialEq for Channel