[−][src]Struct futures_util::stream::Unfold

#[must_use = "streams do nothing unless polled"]
pub struct Unfold<T, F, Fut> { /* fields omitted */ }

Stream for the unfold function.

Trait Implementations

`impl<T, F, Fut> Debug for Unfold<T, F, Fut> where T: Debug, Fut: Debug,` [src]

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

`impl<T, F, Fut: Unpin> Unpin for Unfold<T, F, Fut>`[src]

`impl<T, F, Fut, Item> Stream for Unfold<T, F, Fut> where F: FnMut(T) -> Fut, Fut: Future<Output = Option<(Item, T)>>,` [src]

`type Item = Item`

Values yielded by the stream.

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

`fn size_hint(&self) -> (usize, Option<usize>)`[src]

`impl<T, F, Fut, Item> FusedStream for Unfold<T, F, Fut> where F: FnMut(T) -> Fut, Fut: Future<Output = Option<(Item, T)>>,` [src]

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

Auto Trait Implementations

`impl<T, F, Fut> Send for Unfold<T, F, Fut> where F: Send, Fut: Send, T: Send,`

`impl<T, F, Fut> Sync for Unfold<T, F, Fut> where F: Sync, Fut: Sync, T: Sync,`

Blanket Implementations

`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 = Infallible`

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

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

`fn borrow(&self) -> &T`[src]

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

`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<S, T, E> TryStream for S where S: Stream<Item = 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_next( self: Pin<&mut S>, cx: &mut Context ) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>`[src]

[−][src]Struct futures_util::stream::Unfold

Trait Implementations

`impl<T, F, Fut> Debug for Unfold<T, F, Fut> where T: Debug, Fut: Debug,` [src]

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

`impl<T, F, Fut: Unpin> Unpin for Unfold<T, F, Fut>`[src]

`impl<T, F, Fut, Item> Stream for Unfold<T, F, Fut> where F: FnMut(T) -> Fut, Fut: Future<Output = Option<(Item, T)>>,` [src]

`type Item = Item`

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

`fn size_hint(&self) -> (usize, Option<usize>)`[src]

`impl<T, F, Fut, Item> FusedStream for Unfold<T, F, Fut> where F: FnMut(T) -> Fut, Fut: Future<Output = Option<(Item, T)>>,` [src]

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

Auto Trait Implementations

`impl<T, F, Fut> Send for Unfold<T, F, Fut> where F: Send, Fut: Send, T: Send,`

`impl<T, F, Fut> Sync for Unfold<T, F, Fut> where F: Sync, Fut: Sync, T: Sync,`

Blanket Implementations

`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 = Infallible`

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

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

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

`fn borrow(&self) -> &T`[src]

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

`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<S, T, E> TryStream for S where S: Stream<Item = Result<T, E>> + ?Sized,` [src]

`type Ok = T`

`type Error = E`

`fn try_poll_next( self: Pin<&mut S>, cx: &mut Context ) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>`[src]

[−][src]Struct futures_util::stream::Unfold

Trait Implementations

impl<T, F, Fut> Debug for Unfold<T, F, Fut> where T: Debug, Fut: Debug, [src]

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

impl<T, F, Fut: Unpin> Unpin for Unfold<T, F, Fut>[src]

impl<T, F, Fut, Item> Stream for Unfold<T, F, Fut> where F: FnMut(T) -> Fut, Fut: Future<Output = Option<(Item, T)>>, [src]

type Item = Item

fn poll_next(self: Pin<&mut Self>, cx: &mut Context) -> Poll<Option<Self::Item>>[src]

fn size_hint(&self) -> (usize, Option<usize>)[src]

impl<T, F, Fut, Item> FusedStream for Unfold<T, F, Fut> where F: FnMut(T) -> Fut, Fut: Future<Output = Option<(Item, T)>>, [src]

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

Auto Trait Implementations

impl<T, F, Fut> Send for Unfold<T, F, Fut> where F: Send, Fut: Send, T: Send,

impl<T, F, Fut> Sync for Unfold<T, F, Fut> where F: Sync, Fut: Sync, T: Sync,

Blanket Implementations

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 = Infallible

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

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

fn into(self) -> U[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]

fn borrow(&self) -> &T[src]

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

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<S, T, E> TryStream for S where S: Stream<Item = Result<T, E>> + ?Sized, [src]

type Ok = T

type Error = E

fn try_poll_next( self: Pin<&mut S>, cx: &mut Context) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>[src]

`impl<T, F, Fut> Debug for Unfold<T, F, Fut> where T: Debug, Fut: Debug,` [src]

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

`impl<T, F, Fut: Unpin> Unpin for Unfold<T, F, Fut>`[src]

`impl<T, F, Fut, Item> Stream for Unfold<T, F, Fut> where F: FnMut(T) -> Fut, Fut: Future<Output = Option<(Item, T)>>,` [src]

`type Item = Item`

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

`fn size_hint(&self) -> (usize, Option<usize>)`[src]

`impl<T, F, Fut, Item> FusedStream for Unfold<T, F, Fut> where F: FnMut(T) -> Fut, Fut: Future<Output = Option<(Item, T)>>,` [src]

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

`impl<T, F, Fut> Send for Unfold<T, F, Fut> where F: Send, Fut: Send, T: Send,`

`impl<T, F, Fut> Sync for Unfold<T, F, Fut> where F: Sync, Fut: Sync, T: Sync,`

`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 = Infallible`

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

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

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

`fn borrow(&self) -> &T`[src]

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

`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<S, T, E> TryStream for S where S: Stream<Item = Result<T, E>> + ?Sized,` [src]

`type Ok = T`

`type Error = E`

`fn try_poll_next( self: Pin<&mut S>, cx: &mut Context ) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>`[src]