Struct bytecodec::combinator::AndThen

pub struct AndThen<D0, D1, F> { /* fields omitted */ }

Combinator for conditional decoding.

If the first item is successfully decoded, it will start decoding the second item by using the decoder returned by f function.

This is created by calling DecodeExt::and_then method.

Trait Implementations

impl<D0: Debug, D1: Debug, F: Debug> Debug for AndThen<D0, D1, F>

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

Formats the value using the given formatter.

impl<D0, D1, F> Decode for AndThen<D0, D1, F> where     D0: Decode,     D1: Decode,     F: Fn(D0::Item) -> D1,

type Item = D1::Item

The type of items to be decoded.

fn decode(&mut self, buf: &[u8], eos: Eos) -> Result<usize>

Consumes the given buffer (a part of a byte sequence), and proceeds the decoding process.

fn finish_decoding(&mut self) -> Result<Self::Item>

Finishes the current decoding process and returns the decoded item.

fn requiring_bytes(&self) -> ByteCount

Returns the lower bound of the number of bytes needed to decode the next item.

fn is_idle(&self) -> bool

Returns true if there are no items to be decoded by the decoder at the next invocation of decode method, otherwise false.