Trait Sink 

pub trait Sink: AnySync {
    // Required method
    fn write(
        &self,
        target: Option<&str>,
        level: Level,
        args: &Arguments<'_>,
    ) -> bool;
}

A log sink trait that can be installed into the log subsystem using the pipe function and will receive all log messages.

Required Methods

fn write( &self, target: Option<&str>, level: Level, args: &Arguments<'_>, ) -> bool

Receives a single log message; returns true to allow the message to continue to the default console output, or false to consume it.

Implementations

impl dyn Sink

pub fn is<_T>(&self) -> bool

where _T: Any, Self: Downcast<_T>,

pub fn downcast_ref<_T>(&self) -> Result<&_T, TypeMismatch>

where _T: Any, Self: Downcast<_T>,

pub fn downcast_mut<_T>(&mut self) -> Result<&mut _T, TypeMismatch>

where _T: Any, Self: Downcast<_T>,

pub fn downcast<_T>( self: Box<Self>, ) -> Result<Box<_T>, DowncastError<Box<Self>>>

where _T: Any, Self: Downcast<_T>,

pub fn downcast_rc<_T>( self: Rc<Self>, ) -> Result<Rc<_T>, DowncastError<Rc<Self>>>

where _T: Any, Self: Downcast<_T>,

pub fn downcast_arc<_T>( self: Arc<Self>, ) -> Result<Arc<_T>, DowncastError<Arc<Self>>>

where _T: AnySync, Self: DowncastSync<_T>,

Trait Implementations

impl<_T> Downcast<_T> for dyn Sink

where _T: Any,

fn is_type(&self) -> bool

fn downcast_ref(&self) -> Result<&T, TypeMismatch>

fn downcast_mut(&mut self) -> Result<&mut T, TypeMismatch>

fn downcast(self: Box<Self>) -> Result<Box<T>, DowncastError<Box<Self>>>

fn downcast_rc(self: Rc<Self>) -> Result<Rc<T>, DowncastError<Rc<Self>>>

impl<_T> DowncastSync<_T> for dyn Sink

where _T: AnySync,

fn downcast_arc(self: Arc<Self>) -> Result<Arc<T>, DowncastError<Arc<Self>>>

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors