Struct core::future::PollFn

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pub struct PollFn<F> { /* fields omitted */ }

🔬 This is a nightly-only experimental API. (future_poll_fn #72302)

Expand description

A Future that wraps a function returning Poll.

This struct is created by poll_fn(). See its documentation for more.

Trait Implementations

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impl<F> Debug for PollFn<F>

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

Formats the value using the given formatter. Read more

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impl<T, F> Future for PollFn<F> where
F: FnMut(&mut Context<'_>) -> Poll<T>,

type Output = T

The type of value produced on completion.

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fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<T>

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

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impl<F> Unpin for PollFn<F>

Auto Trait Implementations

impl<F> RefUnwindSafe for PollFn<F> where
F: RefUnwindSafe,

impl<F> Send for PollFn<F> where
F: Send,

impl<F> Sync for PollFn<F> where
F: Sync,

impl<F> UnwindSafe for PollFn<F> where
F: UnwindSafe,

Blanket Implementations

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

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pub fn type_id(&Self) -> TypeId

Gets the TypeId of self. Read more

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

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pub fn borrow(&Self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

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pub fn from(T) -> T

Performs the conversion.

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

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pub fn into(Self) -> U

Performs the conversion.

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

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pub fn try_into(Self) -> Result<U, >::Error>

Performs the conversion.

Struct core::future::PollFn

Trait Implementations

impl<F> Debug for PollFn<F>

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

impl<T, F> Future for PollFn<F> where
F: FnMut(&mut Context<'_>) -> Poll<T>,

type Output = T

fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<T>

impl<F> Unpin for PollFn<F>

Auto Trait Implementations

impl<F> RefUnwindSafe for PollFn<F> where
F: RefUnwindSafe,

impl<F> Send for PollFn<F> where
F: Send,

impl<F> Sync for PollFn<F> where
F: Sync,

impl<F> UnwindSafe for PollFn<F> where
F: UnwindSafe,

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

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

pub fn into(Self) -> U

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

type Error = Infallible

pub fn try_from(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>

Struct core::future::PollFn

Trait Implementations

impl<F> Debug for PollFn<F>

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

impl<T, F> Future for PollFn<F> where F: FnMut(&mut Context<'_>) -> Poll<T>,

type Output = T

fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<T>

impl<F> Unpin for PollFn<F>

Auto Trait Implementations

impl<F> RefUnwindSafe for PollFn<F> where F: RefUnwindSafe,

impl<F> Send for PollFn<F> where F: Send,

impl<F> Sync for PollFn<F> where F: Sync,

impl<F> UnwindSafe for PollFn<F> where F: UnwindSafe,

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

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

pub fn into(Self) -> U

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

type Error = Infallible

pub fn try_from(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<T, F> Future for PollFn<F> where
F: FnMut(&mut Context<'_>) -> Poll<T>,

impl<F> RefUnwindSafe for PollFn<F> where
F: RefUnwindSafe,

impl<F> Send for PollFn<F> where
F: Send,

impl<F> Sync for PollFn<F> where
F: Sync,

impl<F> UnwindSafe for PollFn<F> where
F: UnwindSafe,

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

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