Enum Caller 

pub enum Caller<T> {
    Standard(Pin<Box<dyn Future<Output = T> + Send + 'static>>),
    Progressing(Box<dyn FnOnce(TaskProgressShared) -> Pin<Box<dyn Future<Output = T> + Send + 'static>>>),
}

The task’s body itself.

It has two states.

• Standard has no progress.
• Progressing has a progress and provides TaskProgressShared.

Variants

Standard(Pin<Box<dyn Future<Output = T> + Send + 'static>>)

Standard caller. No progress just a future.

Progressing(Box<dyn FnOnce(TaskProgressShared) -> Pin<Box<dyn Future<Output = T> + Send + 'static>>>)

Progressing caller. Has progress. Holds a closure that returns a future.

Implementations

impl<T> Caller<T>

pub fn standard<Fut>(fut: Fut) -> Self

where Fut: Future<Output = T> + Send + 'static,

Create a Standard caller from a future.

pub fn progressing<F, Fut>(fun: F) -> Self

where F: FnOnce(TaskProgressShared) -> Fut + 'static, Fut: Future<Output = T> + Send + 'static,

Create a Standard caller from a closure that returns a future.