pub struct Writer<B> { /* private fields */ }
Expand description
A BufMut
adapter which implements io::Write
for the inner value.
This struct is generally created by calling writer()
on BufMut
. See
documentation of writer()
for more
details.
Implementations
sourceimpl<B: BufMut> Writer<B>
impl<B: BufMut> Writer<B>
sourcepub fn get_ref(&self) -> &B
pub fn get_ref(&self) -> &B
Gets a reference to the underlying BufMut
.
It is inadvisable to directly write to the underlying BufMut
.
Examples
use bytes::BufMut;
let buf = Vec::with_capacity(1024).writer();
assert_eq!(1024, buf.get_ref().capacity());
sourcepub fn get_mut(&mut self) -> &mut B
pub fn get_mut(&mut self) -> &mut B
Gets a mutable reference to the underlying BufMut
.
It is inadvisable to directly write to the underlying BufMut
.
Examples
use bytes::BufMut;
let mut buf = vec![].writer();
buf.get_mut().reserve(1024);
assert_eq!(1024, buf.get_ref().capacity());
sourcepub fn into_inner(self) -> B
pub fn into_inner(self) -> B
Consumes this Writer
, returning the underlying value.
Examples
use bytes::BufMut;
use std::io;
let mut buf = vec![].writer();
let mut src = &b"hello world"[..];
io::copy(&mut src, &mut buf).unwrap();
let buf = buf.into_inner();
assert_eq!(*buf, b"hello world"[..]);
Trait Implementations
sourceimpl<B: BufMut + Sized> Write for Writer<B>
impl<B: BufMut + Sized> Write for Writer<B>
sourcefn write(&mut self, src: &[u8]) -> Result<usize>
fn write(&mut self, src: &[u8]) -> Result<usize>
Write a buffer into this writer, returning how many bytes were written. Read more
sourcefn flush(&mut self) -> Result<()>
fn flush(&mut self) -> Result<()>
Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
sourcefn is_write_vectored(&self) -> bool
fn is_write_vectored(&self) -> bool
can_vector
)Determines if this Write
r has an efficient write_vectored
implementation. Read more
1.0.0 · sourcefn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
Attempts to write an entire buffer into this writer. Read more
sourcefn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>
fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>
write_all_vectored
)Attempts to write multiple buffers into this writer. Read more
Auto Trait Implementations
impl<B> RefUnwindSafe for Writer<B> where
B: RefUnwindSafe,
impl<B> Send for Writer<B> where
B: Send,
impl<B> Sync for Writer<B> where
B: Sync,
impl<B> Unpin for Writer<B> where
B: Unpin,
impl<B> UnwindSafe for Writer<B> where
B: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more