Struct env_logger::filter::Filter

pub struct Filter { /* fields omitted */ }

A log filter.

This struct can be used to determine whether or not a log record should be written to the output. Use the Builder type to parse and construct a Filter.

Implementations

impl Filter

pub fn filter(&self) -> LevelFilter

Returns the maximum LevelFilter that this filter instance is configured to output.

Example

extern crate log;
extern crate env_logger;

use log::LevelFilter;
use env_logger::filter::Builder;

fn main() {
    let mut builder = Builder::new();
    builder.filter(Some("module1"), LevelFilter::Info);
    builder.filter(Some("module2"), LevelFilter::Error);

    let filter = builder.build();
    assert_eq!(filter.filter(), LevelFilter::Info);
}

pub fn matches(&self, record: &Record<'_>) -> bool

Checks if this record matches the configured filter.

pub fn enabled(&self, metadata: &Metadata<'_>) -> bool

Determines if a log message with the specified metadata would be logged.

Trait Implementations

impl Debug for Filter

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

Formats the value using the given formatter.