Struct futures_util::future::UnwrapOrElse[−][src]

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#[must_use =
  "futures/streams/sinks do nothing unless you `.await` or poll them"]pub struct UnwrapOrElse<Fut, F> { /* fields omitted */ }

[−]

Future for the unwrap_or_else method.

Trait Implementations

`impl<Fut, F> Debug for UnwrapOrElse<Fut, F> where Map<IntoFuture<Fut>, UnwrapOrElseFn<F>>: Debug,` [src][+]

[+] Show hidden undocumented items

`fn fmt(&self, f: &mut Formatter<'_>) -> Result`[src][−]

`impl<Fut, F> FusedFuture for UnwrapOrElse<Fut, F> where Map<IntoFuture<Fut>, UnwrapOrElseFn<F>>: FusedFuture,` [src][+]

[+] Show hidden undocumented items

`fn is_terminated(&self) -> bool`[src][−]

`impl<Fut, F> Future for UnwrapOrElse<Fut, F> where Map<IntoFuture<Fut>, UnwrapOrElseFn<F>>: Future,` [src][+]

[+] Show hidden undocumented items

`type Output = <Map<IntoFuture<Fut>, UnwrapOrElseFn<F>> as Future>::Output`

The type of value produced on completion.

`fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>`[src][−]

`impl<'pin, Fut, F> Unpin for UnwrapOrElse<Fut, F> where Origin<'__pin, Fut, F>: Unpin,` [src]

Auto Trait Implementations

`impl<Fut, F> RefUnwindSafe for UnwrapOrElse<Fut, F> where F: RefUnwindSafe, Fut: RefUnwindSafe,`

`impl<Fut, F> Send for UnwrapOrElse<Fut, F> where F: Send, Fut: Send,`

`impl<Fut, F> Sync for UnwrapOrElse<Fut, F> where F: Sync, Fut: Sync,`

`impl<Fut, F> UnwindSafe for UnwrapOrElse<Fut, F> where F: UnwindSafe, Fut: UnwindSafe,`

Blanket Implementations

`impl<T> Any for T where T: 'static + ?Sized,` [src][+]

[+] Show hidden undocumented items

`pub fn type_id(&self) -> TypeId`[src][−]

`impl<T> Borrow<T> for T where T: ?Sized,` [src][+]

[+] Show hidden undocumented items

`pub fn borrow(&self) -> &TⓘNotable traits for &'_ mut F impl<'_, F> Future for &'_ mut F where F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;`[src][−]

`impl<T> BorrowMut<T> for T where T: ?Sized,` [src][+]

[+] Show hidden undocumented items

`pub fn borrow_mut(&mut self) -> &mut TⓘNotable traits for &'_ mut F impl<'_, F> Future for &'_ mut F where F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;`[src][−]

`impl<T> From<T> for T`[src][+]

[+] Show hidden undocumented items

`pub fn from(t: T) -> T`[src][−]

`impl<T, U> Into for T where U: From<T>,` [src][+]

[+] Show hidden undocumented items

`pub fn into(self) -> U`[src][−]

`impl<F> IntoFuture for F where F: Future,` [src][+]

[+] Show hidden undocumented items

`type Output = <F as Future>::Output`

🔬 This is a nightly-only experimental API. (into_future)

The output that the future will produce on completion.

`type Future = F`

🔬 This is a nightly-only experimental API. (into_future)

Which kind of future are we turning this into?

`pub fn into_future(self) -> <F as IntoFuture>::Future`[src][−]

`impl<T, U> TryFrom for T where U: Into<T>,` [src][+]

[+] Show hidden undocumented items

`type Error = Infallible`

The type returned in the event of a conversion error.

`pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>`[src][−]

`impl<F, T, E> TryFuture for F where F: Future<Output = Result<T, E>> + ?Sized,` [src][+]

[+] Show hidden undocumented items

`type Ok = T`

The type of successful values yielded by this future

`type Error = E`

The type of failures yielded by this future

`pub fn try_poll( self: Pin<&mut F>, cx: &mut Context<'_> ) -> Poll<<F as Future>::Output>`[src][−]

`impl<T, U> TryInto for T where U: TryFrom<T>,` [src][+]

[+] Show hidden undocumented items

`type Error = >::Error`

The type returned in the event of a conversion error.

Struct futures_util::future::UnwrapOrElse⎘[−][src]

Trait Implementations

impl<Fut, F> Debug for UnwrapOrElse<Fut, F> where Map<IntoFuture<Fut>, UnwrapOrElseFn<F>>: Debug, [src][+]

fn fmt(&self, f: &mut Formatter<'_>) -> Result[src][−]

impl<Fut, F> FusedFuture for UnwrapOrElse<Fut, F> where Map<IntoFuture<Fut>, UnwrapOrElseFn<F>>: FusedFuture, [src][+]

fn is_terminated(&self) -> bool[src][−]

impl<Fut, F> Future for UnwrapOrElse<Fut, F> where Map<IntoFuture<Fut>, UnwrapOrElseFn<F>>: Future, [src][+]

type Output = <Map<IntoFuture<Fut>, UnwrapOrElseFn<F>> as Future>::Output

fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>[src][−]

impl<'__pin, Fut, F> Unpin for UnwrapOrElse<Fut, F> where __Origin<'__pin, Fut, F>: Unpin, [src]

Auto Trait Implementations

impl<Fut, F> RefUnwindSafe for UnwrapOrElse<Fut, F> where F: RefUnwindSafe, Fut: RefUnwindSafe,

impl<Fut, F> Send for UnwrapOrElse<Fut, F> where F: Send, Fut: Send,

impl<Fut, F> Sync for UnwrapOrElse<Fut, F> where F: Sync, Fut: Sync,

impl<Fut, F> UnwindSafe for UnwrapOrElse<Fut, F> where F: UnwindSafe, Fut: UnwindSafe,

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized, [src][+]

pub fn type_id(&self) -> TypeId[src][−]

impl<T> Borrow<T> for T where T: ?Sized, [src][+]

pub fn borrow(&self) -> &TⓘNotable traits for &'_ mut Fimpl<'_, F> Future for &'_ mut F where F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;[src][−]

Notable traits for &'_ mut F

impl<T> BorrowMut<T> for T where T: ?Sized, [src][+]

pub fn borrow_mut(&mut self) -> &mut TⓘNotable traits for &'_ mut Fimpl<'_, F> Future for &'_ mut F where F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;[src][−]

Notable traits for &'_ mut F

impl<T> From<T> for T[src][+]

pub fn from(t: T) -> T[src][−]

impl<T, U> Into<U> for T where U: From<T>, [src][+]

pub fn into(self) -> U[src][−]

impl<F> IntoFuture for F where F: Future, [src][+]

type Output = <F as Future>::Output

type Future = F

pub fn into_future(self) -> <F as IntoFuture>::Future[src][−]

impl<T, U> TryFrom<U> for T where U: Into<T>, [src][+]

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src][−]

impl<F, T, E> TryFuture for F where F: Future<Output = Result<T, E>> + ?Sized, [src][+]

type Ok = T

type Error = E

pub fn try_poll( self: Pin<&mut F>, cx: &mut Context<'_>) -> Poll<<F as Future>::Output>[src][−]

impl<T, U> TryInto<U> for T where U: TryFrom<T>, [src][+]

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src][−]

Struct futures_util::future::UnwrapOrElse[−][src]

`impl<Fut, F> Debug for UnwrapOrElse<Fut, F> where Map<IntoFuture<Fut>, UnwrapOrElseFn<F>>: Debug,` [src][+]

`fn fmt(&self, f: &mut Formatter<'_>) -> Result`[src][−]

`impl<Fut, F> FusedFuture for UnwrapOrElse<Fut, F> where Map<IntoFuture<Fut>, UnwrapOrElseFn<F>>: FusedFuture,` [src][+]

`fn is_terminated(&self) -> bool`[src][−]

`impl<Fut, F> Future for UnwrapOrElse<Fut, F> where Map<IntoFuture<Fut>, UnwrapOrElseFn<F>>: Future,` [src][+]

`type Output = <Map<IntoFuture<Fut>, UnwrapOrElseFn<F>> as Future>::Output`

`fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>`[src][−]

`impl<'pin, Fut, F> Unpin for UnwrapOrElse<Fut, F> where Origin<'__pin, Fut, F>: Unpin,` [src]

`impl<Fut, F> RefUnwindSafe for UnwrapOrElse<Fut, F> where F: RefUnwindSafe, Fut: RefUnwindSafe,`

`impl<Fut, F> Send for UnwrapOrElse<Fut, F> where F: Send, Fut: Send,`

`impl<Fut, F> Sync for UnwrapOrElse<Fut, F> where F: Sync, Fut: Sync,`

`impl<Fut, F> UnwindSafe for UnwrapOrElse<Fut, F> where F: UnwindSafe, Fut: UnwindSafe,`

`impl<T> Any for T where T: 'static + ?Sized,` [src][+]

`pub fn type_id(&self) -> TypeId`[src][−]

`impl<T> Borrow<T> for T where T: ?Sized,` [src][+]

`pub fn borrow(&self) -> &TⓘNotable traits for &'_ mut F impl<'_, F> Future for &'_ mut F where F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;`[src][−]

`impl<T> BorrowMut<T> for T where T: ?Sized,` [src][+]

`pub fn borrow_mut(&mut self) -> &mut TⓘNotable traits for &'_ mut F impl<'_, F> Future for &'_ mut F where F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;`[src][−]

`impl<T> From<T> for T`[src][+]

`pub fn from(t: T) -> T`[src][−]

`impl<T, U> Into<U> for T where U: From<T>,` [src][+]

`pub fn into(self) -> U`[src][−]

`impl<F> IntoFuture for F where F: Future,` [src][+]

`type Output = <F as Future>::Output`

`type Future = F`

`pub fn into_future(self) -> <F as IntoFuture>::Future`[src][−]

`impl<T, U> TryFrom<U> for T where U: Into<T>,` [src][+]

`type Error = Infallible`

`pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`[src][−]

`impl<F, T, E> TryFuture for F where F: Future<Output = Result<T, E>> + ?Sized,` [src][+]

`type Ok = T`

`type Error = E`

`pub fn try_poll( self: Pin<&mut F>, cx: &mut Context<'_> ) -> Poll<<F as Future>::Output>`[src][−]

`impl<T, U> TryInto<U> for T where U: TryFrom<T>,` [src][+]

`type Error = <U as TryFrom<T>>::Error`

`pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`[src][−]