Struct Nop

pub struct Nop {}

Nop is a SpanningTransformer that copies src to dst.

Examples

Basic usage:

let src = b"Does nothing";
let dst = &mut [0; 8];
let (ndst, nsrc) = Nop::new().transform(dst, src, false)?;

assert_eq!(ndst, 8);
assert_eq!(nsrc, 8);
assert_eq!(dst, b"Does not");

Implementations

impl Nop

pub fn new() -> Nop

Trait Implementations

impl SpanningTransformer for Nop

fn span(&self, src: &[u8], _: bool) -> Result<usize>

Span returns a position in src such that transforming src[:n] results in identical output src[:n] for these bytes. It does not necessarily return the largest such n. The atEOF argument tells whether src represents the last bytes of the input.

impl Transformer for Nop

fn transform( &mut self, dst: &mut [u8], src: &[u8], _: bool, ) -> Result<(usize, usize)>

Writes to dst the transformed bytes read from src, and returns the number of dst bytes written and src bytes read. The eof argument tells whether src represents the last bytes of the input.

fn reset(&mut self)

Resets the state and allows a Transformer to be reused.

fn chain<T: Transformer>(self, next: T) -> Chain<Self, T>

where Self: Sized,

Creates an adaptor which will chain this transformer with another.