Enum OutputWriter 

pub enum OutputWriter {
    File(LazyFile),
    Stdout(StdoutWriter),
}

Available on crate feature cli-common only.

Wrapper around either a file or standard output.

Variants

File(LazyFile)

Wrapper around a file.

Stdout(StdoutWriter)

Wrapper around standard output.

Implementations

impl OutputWriter

pub fn new( output: Option<String>, allow_overwrite: bool, format: OutputFormat, _mode: u32, input_is_tty: bool, ) -> Result<Self>

Constructs a new OutputWriter.

Writes to the file at path output, or standard output if output is None or Some("-").

If allow_overwrite is true, the file at path output will be overwritten if it exists. This option has no effect if output is None or Some("-").

pub fn is_terminal(&self) -> bool

Returns true if this output is to a terminal, and a user will likely see it.

Trait Implementations

impl Debug for OutputWriter

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

Formats the value using the given formatter.

impl Write for OutputWriter

fn write(&mut self, data: &[u8]) -> Result<usize>

Writes a buffer into this writer, returning how many bytes were written.

fn flush(&mut self) -> Result<()>

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

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

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

fn is_write_vectored(&self) -> bool

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

Determines if this Writer has an efficient write_vectored implementation.

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

Attempts to write an entire buffer into this writer.

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

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

Attempts to write multiple buffers into this writer.

fn write_fmt(&mut self, args: Arguments<'_>) -> Result<(), Error>

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

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

where Self: Sized,

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