Struct FromFn

pub struct FromFn<F>(/* private fields */);

A Processor that processes incoming logs via a function.

Instances of FromFn are returned by the from_fn function.

Trait Implementations

impl<F: Debug> Debug for FromFn<F>

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

Formats the value using the given formatter.

impl<F> Processor for FromFn<F>

where F: 'static + Fn(Tree) -> Result,

fn process(&self, tree: Tree) -> Result

Process a Tree. This can mean many things, such as writing to stdout or a file, sending over a network, storing in memory, ignoring, or anything else.

fn or<P: Processor>(self, processor: P) -> WithFallback<Self, P>

Returns a Processor that first attempts processing with self, and resorts to processing with fallback on failure.

fn or_stdout(self) -> WithFallback<Self, Printer<Pretty, MakeStdout>>

Returns a Processor that first attempts processing with self, and resorts to pretty-printing to stdout on failure.

fn or_stderr(self) -> WithFallback<Self, Printer<Pretty, MakeStderr>>

Returns a Processor that first attempts processing with self, and resorts to pretty-printing to stderr on failure.

fn or_none(self) -> WithFallback<Self, Sink>

Returns a Processor that first attempts processing with self, otherwise silently fails.