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

pub struct Peek<'a, St: Stream> { /* fields omitted */ }

Expand description

Trait Implementations

Formats the value using the given formatter. Read more

Returns true if the underlying future should no longer be polled.

The type of value produced on completion.

Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

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

The output that the future will produce on completion.

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

Which kind of future are we turning this into?

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

Creates a future from a value.

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

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

Trait Implementations

Auto Trait Implementations

Blanket Implementations

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

Trait Implementations

impl<St> Debug for Peek<'_, St> where St: Stream + Debug, St::Item: Debug,

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

impl<St: Stream> FusedFuture for Peek<'_, St>

fn is_terminated(&self) -> bool

impl<'a, St> Future for Peek<'a, St> where St: Stream,

type Output = Option<&'a St::Item>

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

impl<'__pin, 'a, St: Stream> Unpin for Peek<'a, St> where __Origin<'__pin, 'a, St>: Unpin,

Auto Trait Implementations

impl<'a, St> RefUnwindSafe for Peek<'a, St> where St: RefUnwindSafe, <St as Stream>::Item: RefUnwindSafe,

impl<'a, St> Send for Peek<'a, St> where St: Send, <St as Stream>::Item: Send,

impl<'a, St> Sync for Peek<'a, St> where St: Sync, <St as Stream>::Item: Sync,

impl<'a, St> !UnwindSafe for Peek<'a, St>

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<F> IntoFuture for F where F: Future,

type Output = <F as Future>::Output

type Future = F

pub fn into_future(self) -> <F as IntoFuture>::Future

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

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

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

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

impl<St> Debug for Peek<'_, St> where
St: Stream + Debug,
St::Item: Debug,

impl<'a, St> Future for Peek<'a, St> where
St: Stream,

impl<'pin, 'a, St: Stream> Unpin for Peek<'a, St> where
Origin<'__pin, 'a, St>: Unpin,

impl<'a, St> RefUnwindSafe for Peek<'a, St> where
St: RefUnwindSafe,
<St as Stream>::Item: RefUnwindSafe,

impl<'a, St> Send for Peek<'a, St> where
St: Send,
<St as Stream>::Item: Send,

impl<'a, St> Sync for Peek<'a, St> where
St: Sync,
<St as Stream>::Item: Sync,

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<F> IntoFuture for F where
F: Future,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,