Skip to main content

Recursion

Struct Recursion 

Source
pub struct Recursion<F>(/* private fields */);
Expand description

A recursive call of an async algorithm.

The callee lives on the heap, like a Box::pin of it would, and every poll of it runs through on_sufficient_stack, so polling a chain of nested calls cannot exhaust the native stack.

Implementations§

Source§

impl<F> Recursion<F>

Source

pub fn new(callee: F) -> Self

Wraps the recursive call callee.

Trait Implementations§

Source§

impl<F: Future> Future for Recursion<F>

Source§

type Output = <F as Future>::Output

The type of value produced on completion.
Source§

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

Attempts 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§

§

impl<F> Freeze for Recursion<F>
where Pin<Box<F>>: Freeze,

§

impl<F> RefUnwindSafe for Recursion<F>
where Pin<Box<F>>: RefUnwindSafe,

§

impl<F> Send for Recursion<F>
where Pin<Box<F>>: Send,

§

impl<F> Sync for Recursion<F>
where Pin<Box<F>>: Sync,

§

impl<F> Unpin for Recursion<F>
where Pin<Box<F>>: Unpin,

§

impl<F> UnsafeUnpin for Recursion<F>
where Pin<Box<F>>: UnsafeUnpin,

§

impl<F> UnwindSafe for Recursion<F>
where Pin<Box<F>>: UnwindSafe,

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

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

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

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

Source§

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

Mutably borrows from an owned value. Read more
Source§

impl<T> BorrowUnordered for T

Source§

fn as_unordered(&self) -> &Unordered<T>

Views this value as an Unordered reference.
Source§

impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

Source§

impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, C> FromWithContext<T, C> for T

Source§

fn from_with(value: T, _context: &C) -> T

Source§

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

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

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

Source§

type Output = <F as Future>::Output

The output that the future will produce on completion.
Source§

type IntoFuture = F

Which kind of future are we turning this into?
Source§

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

Creates a future from a value. Read more
Source§

impl<T, U, C> IntoWithContext<U, C> for T
where U: FromWithContext<T, C>,

Source§

fn into_with(self, context: &C) -> U

Source§

impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

Source§

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

Source§

type Error = !

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, !>

Performs the conversion.
Source§

impl<T, U, C> TryFromWithContext<U, C> for T
where U: IntoWithContext<T, C>,

Source§

type Error = !

Source§

fn try_from_with( value: U, context: &C, ) -> Result<T, <T as TryFromWithContext<U, C>>::Error>

Source§

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

Source§

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

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

impl<T, U, C> TryIntoWithContext<U, C> for T
where U: TryFromWithContext<T, C>,

Source§

type Error = <U as TryFromWithContext<T, C>>::Error

Source§

fn try_into_with( self, context: &C, ) -> Result<U, <T as TryIntoWithContext<U, C>>::Error>

Source§

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

Source§

fn with<C>(&self, context: C) -> Contextual<&T, C>

Source§

fn into_with<C>(self, context: C) -> Contextual<T, C>
where T: Sized,