Struct genawaiter::rc::Gen

pub struct Gen<Y, F: Future> { /* fields omitted */ }

This is a generator which stores its state on the heap.

See the module-level docs for more details.

Methods

impl<Y, F: Future> Gen<Y, F>

pub fn new(start: impl FnOnce(Co<Y>) -> F) -> Self

Creates a new generator from a function.

The function accepts a Co object, and returns a future. Every time the generator is resumed, the future is polled. Each time the future is polled, it should do one of two things:

• Call Co::yield_(), and then return Poll::Pending.
• Drop the Co, and then return Poll::Ready.

Typically this exchange will happen in the context of an async fn.

See the module-level docs for more details.

pub fn resume(&mut self) -> GeneratorState<Y, F::Output>

Resumes execution of the generator.

If the generator yields a value, Yielded is returned. Otherwise, Completed is returned.

Trait Implementations

impl<Y, F: Future> Generator for Gen<Y, F>

type Yield = Y

The type of value this generator yields.

type Return = F::Output

The type of value this generator returns.

fn resume(self: Pin<&mut Self>) -> GeneratorState<Self::Yield, Self::Return>

Resumes the execution of this generator.

impl<Y, F: Future<Output = ()>> IntoIterator for Gen<Y, F>

type Item = Y

The type of the elements being iterated over.

type IntoIter = IntoIter<Y, F>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.