Struct binwrite::write_track::WriteTrack

pub struct WriteTrack<W: Write> { /* fields omitted */ }

A struct for wrapping anything that implements the Write type, tracking the current position and implementing Seek, but only for seeks that go nowhere. This allows you to keep track of how many bytes have been written since the creation of the WriteTrack. Can be thought of as a looser, albeit weaker, Cursor

Methods

impl<W: Write> WriteTrack<W>

pub fn new(inner: W) -> Self

Trait Implementations

impl<W: Write> Deref for WriteTrack<W>

type Target = W

The resulting type after dereferencing.

fn deref(&self) -> &W

Dereferences the value.

impl<W: Write> DerefMut for WriteTrack<W>

fn deref_mut(&mut self) -> &mut W

Mutably dereferences the value.

impl<W: Write> Seek for WriteTrack<W>

fn seek(&mut self, from: SeekFrom) -> Result<u64>

Seek to an offset, in bytes, in a stream.

fn stream_len(&mut self) -> Result<u64, Error>

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

Returns the length of this stream (in bytes).

fn stream_position(&mut self) -> Result<u64, Error>

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

Returns the current seek position from the start of the stream.

impl<W: Write> Write for WriteTrack<W>

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

Attempts to write an entire buffer 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" adaptor for this instance of Write.