Struct NixHashDigester 

pub struct NixHashDigester(Inner);

A digester that takes in bytes and ultimately produces a NixHash.

Examples

use nix_compat::nixhash::{HashAlgo, NixHashDigester};

let one_shot = HashAlgo::Sha256.digest_bytes("hello, world");

let mut ctx = NixHashDigester::new(HashAlgo::Sha256);
ctx.update("hello");
ctx.update(", ");
ctx.update("world");
let multi_path = ctx.finalize();

assert_eq!(one_shot, multi_path);

Tuple Fields

0: Inner

Implementations

impl NixHashDigester

pub fn new(algo: HashAlgo) -> Self

Returns a new digester for the specified HashAlgo.

pub fn algorithm(&self) -> HashAlgo

Returns the hash algorithm that this digester uses.

pub fn update<C: AsRef<[u8]>>(&mut self, data: C)

Updates the digester with the provided bytes.

pub fn finalize(self) -> NixHash

Finalize the digest and return the produced NixHash.

Trait Implementations

impl Write for NixHashDigester

fn write(&mut self, buf: &[u8]) -> Result<usize>

Writes a buffer into this writer, returning how many bytes were written.

fn flush(&mut self) -> Result<()>

Flushes this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers.

fn is_write_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)

Determines if this Writer has an efficient write_vectored implementation.

fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>

Attempts to write an entire buffer into this writer.

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

🔬This is a nightly-only experimental API. (write_all_vectored)

Attempts to write multiple buffers into this writer.

fn write_fmt(&mut self, args: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Creates a “by reference” adapter for this instance of Write.