Enum io_arg::Output

pub enum Output {
    StdOut(Stdout),
    File(File),
}

An opend outup stream which can provide a io::Write interface.

Variants

StdOut(Stdout)

File(File)

Implementations

impl Output

pub fn new(io_arg: IoArg) -> Result<Self>

Either calls stdout or File::create depending on io_arg.

pub fn write(&mut self) -> Box<dyn Write>

Wraps either standard out or the file in a Box<dyn Write>. The resulting writer mutably borrows the instance, since it may lock standard out. A file will be wrapped in a BufWriter in order to minimize system calls.