Struct DecoderAndThen

pub struct DecoderAndThen<DFirst, F, DSecond, A, E> { /* private fields */ }

A decoder for sequence decoders with interdependency between each other.

The result of crate::decode::DecoderExt::and_then.

Implementations

impl<DFirst, F, DSecond, A, EE> DecoderAndThen<DFirst, F, DSecond, A, EE>

pub fn first_value(&self) -> Option<&A>

Accesses the first decoder value.

pub fn first_value_as_mut(&mut self) -> Option<&mut A>

Mutably accesses the first decoder value.

pub fn reset(&mut self)

Resets the state of this decoder for decoding subsequent frames.

Trait Implementations

impl<DFirst: Debug, F: Debug, DSecond: Debug, A: Debug, E: Debug> Debug for DecoderAndThen<DFirst, F, DSecond, A, E>

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

Formats the value using the given formatter.

impl<DFirst, F, DSecond, A, B, EA, EB, EE> Decoder for DecoderAndThen<DFirst, F, DSecond, A, EE>

where DFirst: Decoder<Item = A, Error = EA>, F: Fn(&A) -> DSecond, DSecond: Decoder<Item = B, Error = EB>, EA: From<Error>, EB: From<Error>, EE: From<Error> + From<EA> + From<EB>,

type Item = B

The type of decoded frames.

type Error = EE

The type of unrecoverable frame decoding errors.

fn decode( &mut self, src: &mut BytesMut, ) -> Result<Option<Self::Item>, Self::Error>

Attempts to decode a frame from the provided buffer of bytes.

fn decode_eof( &mut self, buf: &mut BytesMut, ) -> Result<Option<Self::Item>, Self::Error>

A default method available to be called when there are no more bytes available to be read from the underlying I/O.

fn framed<T>(self, io: T) -> Framed<T, Self>

where T: AsyncRead + AsyncWrite, Self: Sized,

Provides a Stream and Sink interface for reading and writing to this Io object, using Decode and Encode to read and write the raw data.