Struct multihash::IdentityHasher

pub struct IdentityHasher<S: Size> { /* fields omitted */ }

Identity hasher with a maximum size.

Panics

Panics if the input is bigger than the maximum size.

Trait Implementations

impl<S: Debug + Size> Debug for IdentityHasher<S>

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

Formats the value using the given formatter.

impl<S: Default + Size> Default for IdentityHasher<S>

fn default() -> IdentityHasher<S>

Returns the “default value” for a type.

impl<S: Size> StatefulHasher for IdentityHasher<S>

type Size = S

The maximum Digest size for that hasher (it is stack allocated).

type Digest = IdentityDigest<Self::Size>

The Digest type to distinguish the output of different Hasher implementations.

fn update(&mut self, input: &[u8])

Consume input and update internal state.

fn finalize(&self) -> Self::Digest

Returns the final digest.

fn reset(&mut self)

Reset the internal hasher state.

impl<S: Size> Write for IdentityHasher<S>

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

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

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

Flush 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, fmt: Arguments<'_>) -> Result<(), Error>

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

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

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