Struct Empty 

pub struct Empty { /* private fields */ }

Available on crate feature std only.

A reader that contains no data.

This reader is created by the empty function. See its documentation for more.

Trait Implementations

impl BufRead for Empty

fn poll_fill_buf<'a>( self: Pin<&'a mut Self>, _: &mut Context<'_>, ) -> Poll<Result<&'a [u8]>>

Available on crate feature docs only.

Returns the contents of the internal buffer, filling it with more data from the inner reader if it is empty.

fn consume(self: Pin<&mut Self>, _: usize)

Available on crate feature docs only.

Tells this buffer that amt bytes have been consumed from the buffer, so they should no longer be returned in calls to read.

fn read_until<'a>( &'a mut self, byte: u8, buf: &'a mut Vec<u8>, ) -> ImplFuture<usize>

where Self: Unpin,

Available on crate feature docs only.

Reads all bytes into buf until the delimiter byte or EOF is reached.

fn read_line<'a>(&'a mut self, buf: &'a mut String) -> ImplFuture<Result<usize>>

where Self: Unpin,

Available on crate feature docs only.

Reads all bytes and appends them into buf until a newline (the 0xA byte) is reached.

fn lines(self) -> Lines<Self>

where Self: Unpin + Sized,

Available on crate feature docs only.

Returns a stream over the lines of this byte stream.

fn split(self, byte: u8) -> Split<Self>

where Self: Sized,

Available on crate feature docs only.

Returns a stream over the contents of this reader split on the byte byte.

impl Debug for Empty

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Read for Empty

fn poll_read( self: Pin<&mut Self>, _: &mut Context<'_>, _: &mut [u8], ) -> Poll<Result<usize>>

Available on crate feature docs only.

Attempt to read from the AsyncRead into buf.

fn poll_read_vectored( self: Pin<&mut Self>, cx: &mut Context<'_>, bufs: &mut [IoSliceMut<'_>], ) -> Poll<Result<usize>>

Available on crate feature docs only.

Attempt to read from the AsyncRead into bufs using vectored IO operations.

fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> ImplFuture<Result<usize>>

where Self: Unpin,

Available on crate feature docs only.

Reads some bytes from the byte stream.

fn read_vectored<'a>( &'a mut self, bufs: &'a mut [IoSliceMut<'a>], ) -> ImplFuture<Result<usize>>

where Self: Unpin,

Available on crate feature docs only.

Like read, except that it reads into a slice of buffers.

fn read_to_end<'a>( &'a mut self, buf: &'a mut Vec<u8>, ) -> ImplFuture<Result<usize>>

where Self: Unpin,

Available on crate feature docs only.

Reads all bytes from the byte stream.

fn read_to_string<'a>( &'a mut self, buf: &'a mut String, ) -> ImplFuture<Result<usize>>

where Self: Unpin,

Available on crate feature docs only.

Reads all bytes from the byte stream and appends them into a string.

fn read_exact<'a>(&'a mut self, buf: &'a mut [u8]) -> ImplFuture<Result<()>>

where Self: Unpin,

Available on crate feature docs only.

Reads the exact number of bytes required to fill buf.

fn take(self, limit: u64) -> Take<Self>

where Self: Sized,

Available on crate feature docs only.

Creates an adaptor which will read at most limit bytes from it.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Available on crate feature docs only.

Creates a “by reference” adaptor for this instance of Read.

fn bytes(self) -> Bytes<Self>

where Self: Sized,

Available on crate feature docs only.

Transforms this Read instance to a Stream over its bytes.

fn chain<R: Read>(self, next: R) -> Chain<Self, R>

where Self: Sized,

Available on crate feature docs only.

Creates an adaptor which will chain this stream with another.