Struct ByteWriter 

pub struct ByteWriter { /* private fields */ }

A checked big-endian writer with a hard output budget.

Implementations

impl ByteWriter

pub fn new(budget: usize) -> Self

Construct an empty writer that can produce at most budget bytes.

pub fn write_u1(&mut self, value: u8) -> Result<(), ByteError>

Write one byte.

pub fn write_u2(&mut self, value: u16) -> Result<(), ByteError>

Write an unsigned big-endian two-byte integer.

pub fn write_u4(&mut self, value: u32) -> Result<(), ByteError>

Write an unsigned big-endian four-byte integer.

pub fn write_bytes(&mut self, value: &[u8]) -> Result<(), ByteError>

Append exact bytes after checking the output budget.

pub fn as_slice(&self) -> &[u8]

Borrow all bytes written so far.

pub fn into_bytes(self) -> Vec<u8>

Finish and return the written bytes.

Trait Implementations

impl Clone for ByteWriter

fn clone(&self) -> ByteWriter

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ByteWriter

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

Formats the value using the given formatter.