Struct bytes::buf::Writer

source · [−]
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

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());

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());

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

Formats the value using the given formatter. Read more

Write a buffer into this writer, returning how many bytes were written. Read more

Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more

Like write, except that it writes from a slice of buffers. Read more

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

Determines if this Writer has an efficient write_vectored implementation. Read more

Attempts to write an entire buffer into this writer. Read more

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

Attempts to write multiple buffers into this writer. Read more

Writes a formatted string into this writer, returning any error encountered. Read more

Creates a “by reference” adapter for this instance of Write. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

Writes an unsigned 8 bit integer to the underlying writer. Read more

Writes a signed 8 bit integer to the underlying writer. Read more

Writes an unsigned 16 bit integer to the underlying writer. Read more

Writes a signed 16 bit integer to the underlying writer. Read more

Writes an unsigned 24 bit integer to the underlying writer. Read more

Writes a signed 24 bit integer to the underlying writer. Read more

Writes an unsigned 32 bit integer to the underlying writer. Read more

Writes a signed 32 bit integer to the underlying writer. Read more

Writes an unsigned 48 bit integer to the underlying writer. Read more

Writes a signed 48 bit integer to the underlying writer. Read more

Writes an unsigned 64 bit integer to the underlying writer. Read more

Writes a signed 64 bit integer to the underlying writer. Read more

Writes an unsigned 128 bit integer to the underlying writer.

Writes a signed 128 bit integer to the underlying writer.

Writes an unsigned n-bytes integer to the underlying writer. Read more

Writes a signed n-bytes integer to the underlying writer. Read more

Writes an unsigned n-bytes integer to the underlying writer. Read more

Writes a signed n-bytes integer to the underlying writer. Read more

Writes a IEEE754 single-precision (4 bytes) floating point number to the underlying writer. Read more

Writes a IEEE754 double-precision (8 bytes) floating point number to the underlying writer. Read more