Struct UnderlyingObjectFuture 

pub struct UnderlyingObjectFuture<T, O> { /* private fields */ }

It is used internally here, but left pub as maybe somebody could use it in other circumstances. Holds a pinned future of a function from an object and the object itself, guaranteeing by doing so the lifetime of the object and its func-future to co-exist. You need this if you want to poll a Future of a function from a object in an async manner. As we hold the object together with the future of its function in a tuple, the object lives at least as long as the future it returns.

Implementations

impl<T, O> UnderlyingObjectFuture<T, O>

pub fn new(object: T, getter: GetFutureFunc<T, O>) -> Self

Create new UnderlyingObjectFuture consuming the given object. getter can be easily implemented using the impl_getter macro and defines the function-future from the object-function.

pub fn take(&mut self) -> &mut Pin<Box<dyn Future<Output = (O, T)>>>

Get the future from the object and encapsulate the future with the object or deliver the previous future if the object is already gone.

pub fn reset(&mut self, left: T)

Reset to object