Struct TaskHandle 

pub struct TaskHandle<T> { /* private fields */ }

Opaque, typed token for a node’s output.

A TaskHandle<T> provides compile-time type-safe access to a task’s output. You can:

1. Pass it to crate::TaskBuilder::depends_on to wire up dependencies
2. Use it with crate::DagRunner::get to retrieve the output after crate::DagRunner::run

Handles are cheap to clone and copy.

Examples

let dag = DagRunner::new();
let node = dag.add_task(LoadValue::new(42));

dag.run(|fut| { tokio::spawn(fut); }).await.unwrap();

assert_eq!(dag.get(node).unwrap(), 42);

Trait Implementations

impl<T> Clone for TaskHandle<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a, Tk: Task, Deps> From<&TaskBuilder<'a, Tk, Deps>> for TaskHandle<Tk::Output>

where Tk::Input: IsUnitType,

fn from(node: &TaskBuilder<'a, Tk, Deps>) -> Self

Converts to this type from the input type.

impl<T> From<&TaskHandle<T>> for TaskHandle<T>

fn from(handle: &TaskHandle<T>) -> Self

Converts to this type from the input type.

impl<'a, Tk: Task, Deps> From<TaskBuilder<'a, Tk, Deps>> for TaskHandle<Tk::Output>

where Tk::Input: IsUnitType,

fn from(node: TaskBuilder<'a, Tk, Deps>) -> Self

Converts to this type from the input type.

impl<T> Copy for TaskHandle<T>