pub struct LocalFutureObj<'a, T> { /* fields omitted */ }
A custom trait object for polling futures, roughly akin to
Box<dyn Future<Output = T> + 'a>
.
This custom trait object was introduced for two reasons:
- Currently it is not possible to take
dyn Trait
by value and
Box<dyn Trait>
is not available in no_std contexts.
Create a LocalFutureObj
from a custom trait object representation.
Converts the LocalFutureObj
into a FutureObj
To make this operation safe one has to ensure that the UnsafeFutureObj
instance from which this LocalFutureObj
was created actually
implements Send
.
Formats the value using the given formatter. Read more
Executes the destructor for this type. Read more
🔬 This is a nightly-only experimental API. (futures_api
)
futures in libcore are unstable
The result of the Future
.
🔬 This is a nightly-only experimental API. (futures_api
)
futures in libcore are unstable
Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available. Read more
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
Map this future's output to a different type, returning a new future of the resulting type. Read more
Chain on a computation for when a future finished, passing the result of the future to the provided closure f
. Read more
Joins the result of two futures, waiting for them both to complete. Read more
Same as join
, but with more futures. Read more
fn join4<Fut2, Fut3, Fut4>( self, future2: Fut2, future3: Fut3, future4: Fut4 ) -> Join4<Self, Fut2, Fut3, Fut4> where Fut2: Future, Fut3: Future + Future, Fut4: Future, | [src] |
Same as join
, but with more futures. Read more
fn join5<Fut2, Fut3, Fut4, Fut5>( self, future2: Fut2, future3: Fut3, future4: Fut4, future5: Fut5 ) -> Join5<Self, Fut2, Fut3, Fut4, Fut5> where Fut2: Future, Fut3: Future + Future, Fut4: Future, Fut5: Future, | [src] |
Same as join
, but with more futures. Read more
Convert this future into a single element stream. Read more
Flatten the execution of this future when the successful result of this future is itself another future. Read more
Flatten the execution of this future when the successful result of this future is a stream. Read more
Fuse a future such that poll
will never again be called once it has completed. This method can be used to turn any Future
into a FusedFuture
. Read more
Do something with the output of a future before passing it on. Read more
Catches unwinding panics while polling the future. Read more
Create a cloneable handle to this future where all handles will resolve to the same result. Read more
Turn this future into a future that yields ()
on completion and sends its output to another future on a separate task. Read more
Wrap the future in a Box, pinning it.
Turns a Future
into a TryFuture
with Error = ()
.
A convenience for calling Future::poll
on Unpin
future types.
type Ok = T
The type of successful values yielded by this future
The type of failures yielded by this future
Poll this TryFuture
as if it were a Future
. Read more
Flattens the execution of this future when the successful result of this future is a [Sink
]. Read more
Maps this future's success value to a different value. Read more
Maps this future's error value to a different value. Read more
Maps this future's Error
to a new error type using the Into
trait. Read more
Executes another future after this one resolves successfully. The success value is passed to a closure to create this subsequent future. Read more
Executes another future if this one resolves to an error. The error value is passed to a closure to create this subsequent future. Read more
Unwraps this future's ouput, producing a future with this future's Ok
type as its Output
type. Read more
Wraps a [TryFuture
] into a type that implements Future
. Read more
Joins the result of two futures, waiting for them both to complete or for one to produce an error. Read more
Same as try_join
, but with more futures. Read more
fn try_join4<Fut2, Fut3, Fut4>( self, future2: Fut2, future3: Fut3, future4: Fut4 ) -> TryJoin4<Self, Fut2, Fut3, Fut4> where Fut2: TryFuture<Error = Self::Error>, Fut3: TryFuture<Error = Self::Error>, Fut4: TryFuture<Error = Self::Error>, | [src] |
Same as try_join
, but with more futures. Read more
fn try_join5<Fut2, Fut3, Fut4, Fut5>( self, future2: Fut2, future3: Fut3, future4: Fut4, future5: Fut5 ) -> TryJoin5<Self, Fut2, Fut3, Fut4, Fut5> where Fut2: TryFuture<Error = Self::Error>, Fut3: TryFuture<Error = Self::Error>, Fut4: TryFuture<Error = Self::Error>, Fut5: TryFuture<Error = Self::Error>, | [src] |
Same as try_join
, but with more futures. Read more