Struct Filter 

pub struct Filter { /* private fields */ }

Available on crate feature std only.

A target-aware severity gate.

Implementations

impl Filter

pub fn new(default_level: Level) -> Self

New filter with a default minimum severity and no overrides.

pub fn with_rule(self, target: impl Into<String>, level: Level) -> Self

Add a per-target override. Rules are checked in insertion order; the longest, most specific prefix should be added first.

pub fn default_level(&self) -> Level

The configured default severity.

pub fn rules(&self) -> &[FilterRule]

The configured rules in insertion order.

pub fn is_enabled(&self, target: &str, level: Level) -> bool

Decide whether a record at level/target should be admitted.

Returns true when the level is at least as severe as the rule matched (or the default, if no rule matches).

pub fn threshold_for(&self, target: &str) -> Level

Return the configured threshold for a target.

pub fn parse(directive: &str) -> Result<Self, ParseFilterError>

Parse a directive string like info,app::auth=debug,hyper=warn.

Whitespace is trimmed. Unknown levels return an error.

Errors

Returns ParseFilterError if any segment fails to parse as Level or target=Level.

Trait Implementations

impl Clone for Filter

fn clone(&self) -> Filter

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Filter

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

Formats the value using the given formatter.