Struct bytes::buf::Writer
[−]
[src]
pub struct Writer<B> { /* fields omitted */ }
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.
Methods
impl<B: BufMut> Writer<B>
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fn get_ref(&self) -> &B
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Gets a reference to the underlying BufMut
.
It is inadvisable to directly write to the underlying BufMut
.
Examples
use bytes::BufMut; let mut buf = Vec::with_capacity(1024).writer(); assert_eq!(1024, buf.get_ref().capacity());
fn get_mut(&mut self) -> &mut B
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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());
fn into_inner(self) -> B
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Consumes this Writer
, returning the underlying value.
Examples
use bytes::BufMut; use std::io::{self, Cursor}; let mut buf = vec![].writer(); let mut src = Cursor::new(b"hello world"); io::copy(&mut src, &mut buf).unwrap(); let buf = buf.into_inner(); assert_eq!(*buf, b"hello world"[..]);
Trait Implementations
impl<B: Debug> Debug for Writer<B>
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impl<B: BufMut + Sized> Write for Writer<B>
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fn write(&mut self, src: &[u8]) -> Result<usize>
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Write a buffer into this object, returning how many bytes were written. Read more
fn flush(&mut self) -> Result<()>
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Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
1.0.0[src]
Attempts to write an entire buffer into this write. Read more
fn write_fmt(&mut self, fmt: Arguments) -> Result<(), Error>
1.0.0[src]
Writes a formatted string into this writer, returning any error encountered. Read more
fn by_ref(&mut self) -> &mut Self
1.0.0[src]
Creates a "by reference" adaptor for this instance of Write
. Read more