Struct WriterRef 

pub struct WriterRef<'a, B: ?Sized>(/* private fields */);

Adapts a mutable reference to IoBufMut to std::io::Write trait.

This can be constructed with IoBufMut::as_writer.

Implementations

impl<'a, B: ?Sized> WriterRef<'a, B>

pub fn new(buf: &'a mut B) -> Self

Creates a new WriterRef from the given mutable buffer reference.

pub fn as_inner(&self) -> &B

Returns a reference to the inner buffer.

pub fn as_inner_mut(&mut self) -> &mut B

Returns a mutable reference to the inner buffer.

Trait Implementations

impl<B: IoBufMut + ?Sized> Write for WriterRef<'_, B>

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.