Trait Decoder 

pub trait Decoder {
    type Item;
    type Error: From<Error>;

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

    // Provided method
    fn decode_eof(
        &mut self,
        src: &mut BytesMut,
    ) -> Result<Option<Self::Item>, Self::Error> { ... }
}

Decoding of frames via buffers, for use with FramedRead.

Required Associated Types

type Item

The type of items returned by decode

type Error: From<Error>

The type of decoding errors.

Required Methods

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

Decode an item from the src BytesMut into an item

Provided Methods

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

Called when the input stream reaches EOF, signaling a last attempt to decode

Notes

The default implementation of this method invokes the Decoder::decode method.

Implementations on Foreign Types

impl Decoder for Uvi<u8>

type Item = u8

type Error = Error

fn decode( &mut self, src: &mut BytesMut, ) -> Result<Option<<Uvi<u8> as Decoder>::Item>, <Uvi<u8> as Decoder>::Error>

impl Decoder for Uvi<u16>

type Item = u16

type Error = Error

fn decode( &mut self, src: &mut BytesMut, ) -> Result<Option<<Uvi<u16> as Decoder>::Item>, <Uvi<u16> as Decoder>::Error>

impl Decoder for Uvi<u32>

type Item = u32

type Error = Error

fn decode( &mut self, src: &mut BytesMut, ) -> Result<Option<<Uvi<u32> as Decoder>::Item>, <Uvi<u32> as Decoder>::Error>

impl Decoder for Uvi<u64>

type Item = u64

type Error = Error

fn decode( &mut self, src: &mut BytesMut, ) -> Result<Option<<Uvi<u64> as Decoder>::Item>, <Uvi<u64> as Decoder>::Error>

impl Decoder for Uvi<u128>

type Item = u128

type Error = Error

fn decode( &mut self, src: &mut BytesMut, ) -> Result<Option<<Uvi<u128> as Decoder>::Item>, <Uvi<u128> as Decoder>::Error>

impl Decoder for Uvi<usize>

type Item = usize

type Error = Error

fn decode( &mut self, src: &mut BytesMut, ) -> Result<Option<<Uvi<usize> as Decoder>::Item>, <Uvi<usize> as Decoder>::Error>

impl<T> Decoder for UviBytes<T>

type Item = BytesMut

type Error = Error

fn decode( &mut self, src: &mut BytesMut, ) -> Result<Option<<UviBytes<T> as Decoder>::Item>, <UviBytes<T> as Decoder>::Error>

Implementors

impl Decoder for BytesCodec

type Item = Bytes

type Error = Error

impl Decoder for LengthCodec

type Item = Bytes

type Error = Error

impl Decoder for LinesCodec

type Item = String

type Error = Error

impl<M> Decoder for JsonUviCodec<M>

where M: DeserializeOwned,

type Item = M

type Error = Error

impl<M> Decoder for ProtobufUviCodec<M>

where M: Message + Default,

type Item = M

type Error = Error