Struct FileSubscriber 

pub struct FileSubscriber { /* private fields */ }

Writes formatted trace events to a file, one event per line.

Intended for crash dumps and post-mortem analysis. Uses a buffered writer for efficiency; the buffer is flushed after each event to ensure events are not lost if the process crashes.

Implementations

impl FileSubscriber

pub fn new(path: impl AsRef<Path>) -> Result<Self>

Opens (or creates) the file at path and writes events to it.

Appends to existing content so that multiple runs accumulate in one file.

Trait Implementations

impl TraceSubscriber for FileSubscriber

fn on_trace(&self, event: &RosaceTrace)

Called for every emitted RosaceTrace event.