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

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

Future for the never_error combinator.

Trait Implementations

`impl<Fut: Unpin> Unpin for NeverError<Fut>`[src]

`impl<Fut: Debug> Debug for NeverError<Fut>`[src]

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

`impl<Fut, T> Future for NeverError<Fut> where Fut: Future<Output = T>,` [src]

`type Output = Result<T, Never>`

The type of value produced on completion.

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

`impl<Fut: FusedFuture> FusedFuture for NeverError<Fut>`[src]

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

Auto Trait Implementations

`impl<Fut> Send for NeverError<Fut> where Fut: Send,`

`impl<Fut> Sync for NeverError<Fut> where Fut: Sync,`

`impl<Fut> UnwindSafe for NeverError<Fut> where Fut: UnwindSafe,`

`impl<Fut> RefUnwindSafe for NeverError<Fut> where Fut: RefUnwindSafe,`

Blanket Implementations

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

`fn into(self) -> U`[src]

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

`fn from(t: T) -> T`[src]

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

`type Error = !`

The type returned in the event of a conversion error.

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

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

`type Error = >::Error`

The type returned in the event of a conversion error.

`fn try_into(self) -> Result<U, >::Error>`[src]

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

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

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

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

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

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

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

`type Ok = T`

The type of successful values yielded by this future

`type Error = E`

The type of failures yielded by this future

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

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

Trait Implementations

`impl<Fut: Unpin> Unpin for NeverError<Fut>`[src]

`impl<Fut: Debug> Debug for NeverError<Fut>`[src]

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

`impl<Fut, T> Future for NeverError<Fut> where Fut: Future<Output = T>,` [src]

`type Output = Result<T, Never>`

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

`impl<Fut: FusedFuture> FusedFuture for NeverError<Fut>`[src]

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

Auto Trait Implementations

`impl<Fut> Send for NeverError<Fut> where Fut: Send,`

`impl<Fut> Sync for NeverError<Fut> where Fut: Sync,`

`impl<Fut> UnwindSafe for NeverError<Fut> where Fut: UnwindSafe,`

`impl<Fut> RefUnwindSafe for NeverError<Fut> where Fut: RefUnwindSafe,`

Blanket Implementations

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

`fn into(self) -> U`[src]

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

`fn from(t: T) -> T`[src]

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

`type Error = !`

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

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

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

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

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

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

Important traits for &'_ mut F

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

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

Important traits for &'_ mut F

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

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

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

`type Ok = T`

`type Error = E`

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

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

Trait Implementations

impl<Fut: Unpin> Unpin for NeverError<Fut>[src]

impl<Fut: Debug> Debug for NeverError<Fut>[src]

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

impl<Fut, T> Future for NeverError<Fut> where Fut: Future<Output = T>, [src]

type Output = Result<T, Never>

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

impl<Fut: FusedFuture> FusedFuture for NeverError<Fut>[src]

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

Auto Trait Implementations

impl<Fut> Send for NeverError<Fut> where Fut: Send,

impl<Fut> Sync for NeverError<Fut> where Fut: Sync,

impl<Fut> UnwindSafe for NeverError<Fut> where Fut: UnwindSafe,

impl<Fut> RefUnwindSafe for NeverError<Fut> where Fut: RefUnwindSafe,

Blanket Implementations

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

fn into(self) -> U[src]

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

fn from(t: T) -> T[src]

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

type Error = !

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

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

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

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

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

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

Important traits for &'_ mut F

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

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

Important traits for &'_ mut F

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

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

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

type Ok = T

type Error = E

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

`impl<Fut: Unpin> Unpin for NeverError<Fut>`[src]

`impl<Fut: Debug> Debug for NeverError<Fut>`[src]

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

`impl<Fut, T> Future for NeverError<Fut> where Fut: Future<Output = T>,` [src]

`type Output = Result<T, Never>`

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

`impl<Fut: FusedFuture> FusedFuture for NeverError<Fut>`[src]

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

`impl<Fut> Send for NeverError<Fut> where Fut: Send,`

`impl<Fut> Sync for NeverError<Fut> where Fut: Sync,`

`impl<Fut> UnwindSafe for NeverError<Fut> where Fut: UnwindSafe,`

`impl<Fut> RefUnwindSafe for NeverError<Fut> where Fut: RefUnwindSafe,`

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

`fn into(self) -> U`[src]

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

`fn from(t: T) -> T`[src]

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

`type Error = !`

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

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

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

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

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

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

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

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

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

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

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

`type Ok = T`

`type Error = E`

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