Struct Task 

pub struct Task<M> { /* private fields */ }

A side-effecting future (or set of them) the runtime drives.

Task is the runtime’s pending-work container: returned from crate::Application::init and crate::Application::update, merged into the runtime’s active task, and polled internally. Internally it stores a flat list of boxed futures; constructors flatten nested batches on insertion.

Constructors:

• Task::none - no work.
• Task::perform - drive a Future<Output = Option<M>>.
• Task::future - drive a Future<Output = M>.
• Task::batch - run multiple tasks concurrently.

Implementations

impl<M: 'static> Task<M>

pub fn none() -> Self

No work.

pub fn perform<F>(fut: F) -> Self

where F: Future<Output = Option<M>> + 'static,

Run fut; produce its Option<M> result via update.

pub fn future<F>(fut: F) -> Self

where F: Future<Output = M> + 'static,

Run fut; always produce its M result via update.

pub fn batch(tasks: impl IntoIterator<Item = Task<M>>) -> Self

Combine multiple tasks. All futures are driven concurrently; resulting messages flow through update independently. Nested batches are flattened.

Trait Implementations

impl<M> Default for Task<M>

fn default() -> Self

Returns the “default value” for a type.