Struct BuildScriptWriter

pub struct BuildScriptWriter(/* private fields */);

A writer intended to support the output capturing of build scripts. BuildScriptWriter can be used by tracing_subscriber::fmt::Subscriber or tracing_subscriber::fmt::Layer to enable capturing output in build scripts.

Implementations

impl BuildScriptWriter

pub fn informational() -> Self

Create a writer for informational events. Events will be written to stderr.

pub fn errors_and_warnings() -> Self

Create a writer for warning and error events. Events will be written to stdout after having cargo::warning= prepended.

Trait Implementations

impl Drop for BuildScriptWriter

fn drop(&mut self)

Executes the destructor for this type.

impl Write for BuildScriptWriter

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

Attempts to write an entire buffer into this writer.

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_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.