Struct futures_util::future::Join4

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pub struct Join4<Fut1: Future, Fut2: Future, Fut3: Future, Fut4: Future> { /* private fields */ }

Expand description

Future for the join4 function.

Trait Implementations

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impl<Fut1, Fut2, Fut3, Fut4> Debug for Join4<Fut1, Fut2, Fut3, Fut4> where
 Fut1: Future + Debug,
 Fut1::Output: Debug,
 Fut2: Future + Debug,
 Fut2::Output: Debug,
 Fut3: Future + Debug,
 Fut3::Output: Debug,
 Fut4: Future + Debug,
 Fut4::Output: Debug,

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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<Fut1: FusedFuture, Fut2: FusedFuture, Fut3: FusedFuture, Fut4: FusedFuture> FusedFuture for Join4<Fut1, Fut2, Fut3, Fut4>

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fn is_terminated(&self) -> bool

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

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impl<Fut1: Future, Fut2: Future, Fut3: Future, Fut4: Future> Future for Join4<Fut1, Fut2, Fut3, Fut4>

type Output = (Fut1::Output, Fut2::Output, Fut3::Output, Fut4::Output )

The type of value produced on completion.

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

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<'pin, Fut1: Future, Fut2: Future, Fut3: Future, Fut4: Future> Unpin for Join4<Fut1, Fut2, Fut3, Fut4> where
Origin<'__pin, Fut1, Fut2, Fut3, Fut4>: Unpin,

Auto Trait Implementations

impl<Fut1, Fut2, Fut3, Fut4> RefUnwindSafe for Join4<Fut1, Fut2, Fut3, Fut4> where
 Fut1: RefUnwindSafe,
 Fut2: RefUnwindSafe,
 Fut3: RefUnwindSafe,
 Fut4: RefUnwindSafe,
 <Fut1 as Future>::Output: RefUnwindSafe,
 <Fut2 as Future>::Output: RefUnwindSafe,
 <Fut3 as Future>::Output: RefUnwindSafe,
 <Fut4 as Future>::Output: RefUnwindSafe,

impl<Fut1, Fut2, Fut3, Fut4> Send for Join4<Fut1, Fut2, Fut3, Fut4> where
 Fut1: Send,
 Fut2: Send,
 Fut3: Send,
 Fut4: Send,
 <Fut1 as Future>::Output: Send,
 <Fut2 as Future>::Output: Send,
 <Fut3 as Future>::Output: Send,
 <Fut4 as Future>::Output: Send,

impl<Fut1, Fut2, Fut3, Fut4> Sync for Join4<Fut1, Fut2, Fut3, Fut4> where
 Fut1: Sync,
 Fut2: Sync,
 Fut3: Sync,
 Fut4: Sync,
 <Fut1 as Future>::Output: Sync,
 <Fut2 as Future>::Output: Sync,
 <Fut3 as Future>::Output: Sync,
 <Fut4 as Future>::Output: Sync,

impl<Fut1, Fut2, Fut3, Fut4> UnwindSafe for Join4<Fut1, Fut2, Fut3, Fut4> where
 Fut1: UnwindSafe,
 Fut2: UnwindSafe,
 Fut3: UnwindSafe,
 Fut4: UnwindSafe,
 <Fut1 as Future>::Output: UnwindSafe,
 <Fut2 as Future>::Output: UnwindSafe,
 <Fut3 as Future>::Output: UnwindSafe,
 <Fut4 as Future>::Output: UnwindSafe,

Blanket Implementations

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

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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,

const: unstable · source

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,

const: unstable · source

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

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · 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.

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

type Output = <F as Future>::Output

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

The output that the future will produce on completion.

type IntoFuture = F

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

Which kind of future are we turning this into?

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

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

Creates a future from a value.

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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.

const: unstable · source

fn try_from(value: 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.

const: unstable · source

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

Performs the conversion.

Struct futures_util::future::Join4

Trait Implementations

impl<Fut1, Fut2, Fut3, Fut4> Debug for Join4<Fut1, Fut2, Fut3, Fut4> where
    Fut1: Future + Debug,
    Fut1::Output: Debug,
    Fut2: Future + Debug,
    Fut2::Output: Debug,
    Fut3: Future + Debug,
    Fut3::Output: Debug,
    Fut4: Future + Debug,
    Fut4::Output: Debug,

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

impl<Fut1: FusedFuture, Fut2: FusedFuture, Fut3: FusedFuture, Fut4: FusedFuture> FusedFuture for Join4<Fut1, Fut2, Fut3, Fut4>

fn is_terminated(&self) -> bool

impl<Fut1: Future, Fut2: Future, Fut3: Future, Fut4: Future> Future for Join4<Fut1, Fut2, Fut3, Fut4>

type Output = (Fut1::Output, Fut2::Output, Fut3::Output, Fut4::Output )

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

impl<'pin, Fut1: Future, Fut2: Future, Fut3: Future, Fut4: Future> Unpin for Join4<Fut1, Fut2, Fut3, Fut4> where
Origin<'__pin, Fut1, Fut2, Fut3, Fut4>: Unpin,

Auto Trait Implementations

impl<Fut1, Fut2, Fut3, Fut4> Send for Join4<Fut1, Fut2, Fut3, Fut4> where
    Fut1: Send,
    Fut2: Send,
    Fut3: Send,
    Fut4: Send,
    <Fut1 as Future>::Output: Send,
    <Fut2 as Future>::Output: Send,
    <Fut3 as Future>::Output: Send,
    <Fut4 as Future>::Output: Send,

impl<Fut1, Fut2, Fut3, Fut4> Sync for Join4<Fut1, Fut2, Fut3, Fut4> where
    Fut1: Sync,
    Fut2: Sync,
    Fut3: Sync,
    Fut4: Sync,
    <Fut1 as Future>::Output: Sync,
    <Fut2 as Future>::Output: Sync,
    <Fut3 as Future>::Output: Sync,
    <Fut4 as Future>::Output: Sync,

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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

type Output = <F as Future>::Output

type IntoFuture = F

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

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

type Error = Infallible

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

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

Struct futures_util::future::Join4

Trait Implementations

impl<Fut1, Fut2, Fut3, Fut4> Debug for Join4<Fut1, Fut2, Fut3, Fut4> where Fut1: Future + Debug, Fut1::Output: Debug, Fut2: Future + Debug, Fut2::Output: Debug, Fut3: Future + Debug, Fut3::Output: Debug, Fut4: Future + Debug, Fut4::Output: Debug,

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

impl<Fut1: FusedFuture, Fut2: FusedFuture, Fut3: FusedFuture, Fut4: FusedFuture> FusedFuture for Join4<Fut1, Fut2, Fut3, Fut4>

fn is_terminated(&self) -> bool

impl<Fut1: Future, Fut2: Future, Fut3: Future, Fut4: Future> Future for Join4<Fut1, Fut2, Fut3, Fut4>

type Output = (Fut1::Output, Fut2::Output, Fut3::Output, Fut4::Output)

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

impl<'__pin, Fut1: Future, Fut2: Future, Fut3: Future, Fut4: Future> Unpin for Join4<Fut1, Fut2, Fut3, Fut4> where __Origin<'__pin, Fut1, Fut2, Fut3, Fut4>: Unpin,

Auto Trait Implementations

impl<Fut1, Fut2, Fut3, Fut4> Send for Join4<Fut1, Fut2, Fut3, Fut4> where Fut1: Send, Fut2: Send, Fut3: Send, Fut4: Send, <Fut1 as Future>::Output: Send, <Fut2 as Future>::Output: Send, <Fut3 as Future>::Output: Send, <Fut4 as Future>::Output: Send,

impl<Fut1, Fut2, Fut3, Fut4> Sync for Join4<Fut1, Fut2, Fut3, Fut4> where Fut1: Sync, Fut2: Sync, Fut3: Sync, Fut4: Sync, <Fut1 as Future>::Output: Sync, <Fut2 as Future>::Output: Sync, <Fut3 as Future>::Output: Sync, <Fut4 as Future>::Output: Sync,

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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

type Output = <F as Future>::Output

type IntoFuture = F

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

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

type Error = Infallible

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

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

impl<Fut1, Fut2, Fut3, Fut4> Debug for Join4<Fut1, Fut2, Fut3, Fut4> where
Fut1: Future + Debug,
Fut1::Output: Debug,
Fut2: Future + Debug,
Fut2::Output: Debug,
Fut3: Future + Debug,
Fut3::Output: Debug,
Fut4: Future + Debug,
Fut4::Output: Debug,

type Output = (Fut1::Output, Fut2::Output, Fut3::Output, Fut4::Output )

impl<'pin, Fut1: Future, Fut2: Future, Fut3: Future, Fut4: Future> Unpin for Join4<Fut1, Fut2, Fut3, Fut4> where
Origin<'__pin, Fut1, Fut2, Fut3, Fut4>: Unpin,

impl<Fut1, Fut2, Fut3, Fut4> Send for Join4<Fut1, Fut2, Fut3, Fut4> where
Fut1: Send,
Fut2: Send,
Fut3: Send,
Fut4: Send,
<Fut1 as Future>::Output: Send,
<Fut2 as Future>::Output: Send,
<Fut3 as Future>::Output: Send,
<Fut4 as Future>::Output: Send,

impl<Fut1, Fut2, Fut3, Fut4> Sync for Join4<Fut1, Fut2, Fut3, Fut4> where
Fut1: Sync,
Fut2: Sync,
Fut3: Sync,
Fut4: Sync,
<Fut1 as Future>::Output: Sync,
<Fut2 as Future>::Output: Sync,
<Fut3 as Future>::Output: Sync,
<Fut4 as Future>::Output: 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>,