Struct WriteAdapter 

pub struct WriteAdapter<W: Write, F> { /* private fields */ }

A generic write adapter for transforming data.

This is a simpler interface that doesn’t buffer - it transforms each write immediately.

Implementations

impl<W: Write, F> WriteAdapter<W, F>

where F: FnMut(&[u8]) -> Result<Vec<u8>>,

pub fn new(inner: W, transform: F) -> Self

Create a new write adapter.

pub fn get_ref(&self) -> &W

Get a reference to the inner writer.

pub fn get_mut(&mut self) -> &mut W

Get a mutable reference to the inner writer.

pub fn into_inner(self) -> W

Consume the adapter and return the inner writer.

Trait Implementations

impl<W: Write, F> Write for WriteAdapter<W, F>

where F: FnMut(&[u8]) -> Result<Vec<u8>>,

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.