Trait Writer 

pub trait Writer {
    type Error: Error;

    // Required method
    fn write_bytes(&mut self, bytes: &[u8]) -> Result<(), Self::Error>;

    // Provided methods
    fn write_byte(&mut self, b: u8) -> Result<(), Self::Error> { ... }
    fn write_array<const N: usize>(
        &mut self,
        array: [u8; N],
    ) -> Result<(), Self::Error> { ... }
}

The trait governing how a writer works.

Required Associated Types

type Error: Error

The error type raised by the writer.

Required Methods

fn write_bytes(&mut self, bytes: &[u8]) -> Result<(), Self::Error>

Write bytes to the current writer.

Provided Methods

fn write_byte(&mut self, b: u8) -> Result<(), Self::Error>

Write a single byte.

fn write_array<const N: usize>( &mut self, array: [u8; N], ) -> Result<(), Self::Error>

Write an array to the current writer.

Dyn Compatibility

This trait is not dyn compatible.

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

Implementations on Foreign Types

impl Writer for Vec<u8>

Available on crate feature std only.

type Error = VecWriterError

fn write_bytes(&mut self, bytes: &[u8]) -> Result<(), Self::Error>

fn write_byte(&mut self, b: u8) -> Result<(), Self::Error>

fn write_array<const N: usize>( &mut self, array: [u8; N], ) -> Result<(), Self::Error>

impl<W> Writer for &mut W

where W: ?Sized + Writer,

type Error = <W as Writer>::Error

fn write_bytes(&mut self, bytes: &[u8]) -> Result<(), Self::Error>

fn write_byte(&mut self, b: u8) -> Result<(), Self::Error>

fn write_array<const N: usize>( &mut self, array: [u8; N], ) -> Result<(), Self::Error>

Implementors

impl<W> Writer for Wrap<W>

where W: Write,

Available on crate feature std only.

type Error = Error

impl<const N: usize, E> Writer for FixedBytes<N, E>

where E: Error,

type Error = E