Struct Buffer 

pub struct Buffer { /* private fields */ }

A simple buffer with a read offset.

Implementations

impl Buffer

pub fn new(buffer: Vec<u8>) -> Self

Creates a new Buffer from the given bytes slice.

pub const fn empty() -> Self

Creates an empty Buffer.

pub fn read<F>(&mut self, f: F) -> Option<NonZeroUsize>

where F: FnOnce(&[u8]) -> usize,

Reads the unread part of the buffer with the provided F, and advances the read offset by the number of bytes read.

Returns the number of bytes read by f.

Panics

Panics if the closure returns an invalid read count.

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

Returns the unread part of the buffer as a byte slice.

pub fn drain(&mut self) -> Option<Vec<u8>>

Drains the inner buffer data, clearing the buffer but does not change its capacity, and returns the drained data.

Trait Implementations

impl Clone for Buffer

fn clone(&self) -> Buffer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Buffer

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

Formats the value using the given formatter.

impl Default for Buffer

fn default() -> Buffer

Returns the “default value” for a type.

impl From<Vec<u8>> for Buffer

fn from(buffer: Vec<u8>) -> Self

Converts to this type from the input type.