Struct Sink

pub struct Sink;

Silently drops everything that is written to it.

Trait Implementations

impl Write for Sink

type WriteError = Void

Value of this type is returned when write() fails.

type FlushError = Void

Value of this type is returned when flush() fails. In case of low-level writers flush often does nothing and therefore doesn’t return error, so this type might be Void.

fn write(&mut self, buf: &[u8]) -> Result<usize, <Sink as Write>::WriteError>

Write a buffer into this object, returning how many bytes were written.

fn flush(&mut self) -> Result<(), <Sink as Write>::FlushError>

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

fn size_hint(&mut self, _bytes: usize)

Hints the writer how much bytes will be written after call to this function. If the maximum amount of bytes to be written is known then it should be passed as argument. If the maximum amount is unknown, then minimum should be passed.

fn write_all(&mut self, buf: &[u8]) -> Result<(), Self::WriteError>

Attempts to write an entire buffer into this Write.

fn uses_size_hint(&self) -> bool

Reports to the caller whether size hint is actually used. This can prevent costly computation of size hint that would be thrown away.