Struct SliceSink 

pub struct SliceSink<'a> { /* private fields */ }

SliceSink writes into a preallocated &mut [u8].

Handling of Capacity

Extend methods will panic if there’s insufficient capacity left in the Sink.

Invariants

• Bytes [..pos()] are always initialized.

Implementations

impl<'a> SliceSink<'a>

pub fn new(output: &'a mut [u8], pos: usize) -> Self

Creates a Sink backed by the given byte slice. pos defines the initial output position in the Sink.

Panics

Panics if pos is out of bounds.

Trait Implementations

impl Sink for SliceSink<'_>

fn push(&mut self, byte: u8)

Pushes a byte to the end of the Sink.

fn pos(&self) -> usize

Current write position.

fn capacity(&self) -> usize

Total capacity of the underlying buffer.

fn extend_from_slice(&mut self, data: &[u8])

Extends the Sink with data.

fn extend_from_slice_wild(&mut self, data: &[u8], copy_len: usize)

Extends the Sink with data, but only advances pos by copy_len. Allows overcopying into the trailing slack for wildcopy.

fn extend_from_within_overlapping(&mut self, start: usize, num_bytes: usize)

Copies num_bytes from start within the output buffer, handling overlapping (periodic) patterns byte by byte.

fn output_mut_with_pos(&mut self) -> (&mut [u8], &mut usize)

Returns the underlying buffer and a mutable reference to the position.