BoxedIndirection

async_codegen::common

Struct BoxedIndirection 

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pub struct BoxedIndirection<W>(pub W);
Expand description

Runs the given writable or sequence, but places the future inside Box::pin. This layer of indirection helps to break recursion issues in async code.

(This struct can be used as either a writable or a sequence, depending on its contents)

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§0: W

Trait Implementations§

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impl<O, W> Writable<O> for BoxedIndirection<W>
where O: Output, W: Writable<O>,

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async fn write_to(&self, output: &mut O) -> Result<(), O::Error>

Writes to the output. Returns the output’s error upon failure. Read more
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impl<O, W> WritableSeq<O> for BoxedIndirection<W>
where O: Output, W: WritableSeq<O>,

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async fn for_each<S>(&self, sink: &mut S) -> Result<(), O::Error>
where S: SequenceAccept<O>,

Writes each writable value in the sequence

Auto Trait Implementations§

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impl<W> Freeze for BoxedIndirection<W>
where W: Freeze,

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impl<W> RefUnwindSafe for BoxedIndirection<W>
where W: RefUnwindSafe,

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impl<W> Send for BoxedIndirection<W>
where W: Send,

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impl<W> Sync for BoxedIndirection<W>
where W: Sync,

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impl<W> Unpin for BoxedIndirection<W>
where W: Unpin,

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impl<W> UnwindSafe for BoxedIndirection<W>
where W: 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,

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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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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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fn from(t: T) -> T

Returns the argument unchanged.

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

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.