Struct RustFnWorker 

pub struct RustFnWorker {
    pub handler: WorkerJoinHandler,
}

Concrete Worker type for the RustFn kind — a handle to a task that directly calls a Rust closure. Embeds a WorkerJoinHandler. Being a pure function, there is minimal kind-specific extension surface here; the primary purpose is to nail down the type binding.

Fields

handler: WorkerJoinHandler

The join handle / cancellation token for the underlying task.

Trait Implementations

impl From<WorkerJoinHandler> for RustFnWorker

fn from(handler: WorkerJoinHandler) -> Self

Converts to this type from the input type.

impl Worker for RustFnWorker

fn id(&self) -> &WorkerId

This worker’s identity — used for logging and to tie cancellation back to the right worker.

fn cancel_token(&self) -> CancellationToken

Token that carries the cancel signal. Clonable — this is the path the engine uses to cancel from the outside.

fn join<'async_trait>( self: Box<Self>, ) -> Pin<Box<dyn Future<Output = Result<(), WorkerError>> + Send + 'async_trait>>

where Self: 'async_trait,

Await the completion signal. The worker is consumed — one worker, one join. Ok(()) means the worker ran to completion; Err means it was cancelled, failed, or panicked internally. Values do not come back through this trait; use engine.output_tail for those.