async_codec_util::decoder

Struct AndThen

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pub struct AndThen<S, T, F>(/* private fields */);
Expand description

Run a decoder and use the produced item to construct the next decoder to run.

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impl<S, T, F> AndThen<S, T, F>

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pub fn new(first: S, f: F) -> AndThen<S, T, F>

Run a decoder and use the produced item to construct the next decoder to run.

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impl<S, T, F> AsyncDecode for AndThen<S, T, F>
where S: AsyncDecode, T: AsyncDecode<Error = S::Error>, F: FnOnce(S::Item) -> T,

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type Item = <T as AsyncDecode>::Item

The type of the value to decode.
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type Error = <T as AsyncDecode>::Error

An error indicating how decoding can fail.
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fn poll_decode<R: AsyncRead>( self, cx: &mut Context<'_>, reader: &mut R, ) -> PollDec<Self::Item, Self, Self::Error>

Call reader.poll_read exactly once, propgating any Err and Pending, and return how many bytes have been read, as well as the decoded value, once decoding is done. Read more

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impl<S, T, F> Freeze for AndThen<S, T, F>
where S: Freeze, F: Freeze, T: Freeze,

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impl<S, T, F> RefUnwindSafe for AndThen<S, T, F>
where S: RefUnwindSafe, F: RefUnwindSafe, T: RefUnwindSafe,

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impl<S, T, F> Send for AndThen<S, T, F>
where S: Send, F: Send, T: Send,

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impl<S, T, F> Sync for AndThen<S, T, F>
where S: Sync, F: Sync, T: Sync,

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impl<S, T, F> Unpin for AndThen<S, T, F>
where S: Unpin, F: Unpin, T: Unpin,

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impl<S, T, F> UnwindSafe for AndThen<S, T, F>
where S: UnwindSafe, F: UnwindSafe, T: UnwindSafe,

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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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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.