Struct futures_task::FutureObj [−][src]
A custom trait object for polling futures, roughly akin to
Box<dyn Future<Output = T> + Send + 'a>
.
This custom trait object was introduced as currently it is not possible to
take dyn Trait
by value and Box<dyn Trait>
is not available in no_std
contexts.
You should generally not need to use this type outside of no_std
or when
implementing Spawn
, consider using BoxFuture
instead.
Implementations
impl<'a, T> FutureObj<'a, T>
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pub fn new<F: UnsafeFutureObj<'a, T> + Send>(f: F) -> Self
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Create a FutureObj
from a custom trait object representation.
Trait Implementations
impl<T> Debug for FutureObj<'_, T>
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impl<'a, F: Future<Output = ()> + Send + 'a> From<Box<F, Global>> for FutureObj<'a, ()>
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impl<'a> From<Box<dyn Future<Output = ()> + 'a + Send, Global>> for FutureObj<'a, ()>
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impl<'a, T> From<FutureObj<'a, T>> for LocalFutureObj<'a, T>
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impl<'a, F: Future<Output = ()> + Send + 'a> From<Pin<Box<F, Global>>> for FutureObj<'a, ()>
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impl<'a> From<Pin<Box<dyn Future<Output = ()> + 'a + Send, Global>>> for FutureObj<'a, ()>
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impl<T> Future for FutureObj<'_, T>
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impl<T> Send for FutureObj<'_, T>
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impl<T> Unpin for FutureObj<'_, T>
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Auto Trait Implementations
impl<'a, T> !RefUnwindSafe for FutureObj<'a, T>
impl<'a, T> !Sync for FutureObj<'a, T>
impl<'a, T> !UnwindSafe for FutureObj<'a, T>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<F> IntoFuture for F where
F: Future,
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F: Future,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,