Struct Seq 

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

Read-only access to the world’s current sequence number.

Appears in handler function signatures alongside other params. Derefs to Sequence.

Example

use nexus_rt::{Seq, Handler, IntoHandler};

fn log_event(seq: Seq, event: u64) {
    println!("event {} at sequence {}", event, seq.get());
}

Implementations

impl Seq

pub const fn get(&self) -> Sequence

Returns the current sequence value.

Methods from Deref<Target = Sequence>

pub const NULL: Self

pub const UNINITIALIZED: Self

pub const ZERO: Self

Trait Implementations

impl Clone for Seq

fn clone(&self) -> Seq

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Deref for Seq

type Target = Sequence

The resulting type after dereferencing.

fn deref(&self) -> &Sequence

Dereferences the value.

impl Param for Seq

type State = ()

Opaque state cached at build time (e.g. ResourceId).

type Item<'w> = Seq

The item produced at dispatch time.

fn init(_registry: &Registry)

Resolve state from the registry. Called once at build time.

unsafe fn fetch<'w>(world: &'w World, _state: &'w mut ()) -> Seq

Fetch the item using cached state.

fn resource_id(state: &Self::State) -> Option<ResourceId>

The ResourceId this param accesses, if any.

impl Copy for Seq