Trait DecodeSource 

pub trait DecodeSource {
    // Required method
    fn read_exact(&mut self, out: &mut [u8]) -> Result<(), CodecError>;

    // Provided method
    fn remaining_len(&self) -> Option<usize> { ... }
}

Source for canonical encoded bytes.

Required Methods

fn read_exact(&mut self, out: &mut [u8]) -> Result<(), CodecError>

Reads exactly enough bytes to fill out or returns an error.

Provided Methods

fn remaining_len(&self) -> Option<usize>

Returns the unread byte count when the source can know it cheaply.

Streaming sources may return None. Slice-backed sources return Some(_), allowing decoders to reject impossible length prefixes before allocating.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl DecodeSource for SliceReader<'_>