Struct stakker::LogFilter

pub struct LogFilter(_);

Filter for logging levels

This is a “copy” value which represents a set of enabled logging levels. Filters can be combined using the | and |= bit-or operators. A filter can be generated from a LogLevel using LogFilter::from. Note that converting from a LogLevel will also enable any related levels – see LogFilter::from documentation.

Implementations

impl LogFilter

pub fn new() -> Self

Return a LogFilter with no levels enabled

pub fn all(levels: &[LogLevel]) -> Self

Return a LogFilter with all the listed levels enabled, as converted by LogFilter::from.

pub fn allows(&self, level: LogLevel) -> bool

Test whether the given LogLevel is enabled

pub fn is_empty(&self) -> bool

Test whether the set of enabled levels is empty

Trait Implementations

impl BitOr<LogFilter> for LogFilter

type Output = LogFilter

The resulting type after applying the | operator.

fn bitor(self, rhs: Self) -> Self

Performs the | operation.

impl BitOrAssign<LogFilter> for LogFilter

fn bitor_assign(&mut self, rhs: Self)

Performs the |= operation.

impl Clone for LogFilter

fn clone(&self) -> LogFilter

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LogFilter

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

Formats the value using the given formatter.

impl Default for LogFilter

fn default() -> LogFilter

Returns the “default value” for a type.

impl Display for LogFilter

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

Formats the value using the given formatter.

impl From<LogLevel> for LogFilter

fn from(level: LogLevel) -> Self

Convert a LogLevel into a LogFilter. Where a severity level (LogLevel::Trace to LogLevel::Error) is passed, all higher severity levels are also enabled. Where LogLevel::Open or LogLevel::Close is passed, the other is also enabled. LogLevel::Audit only enables itself. LogLevel::Off gives no levels enabled.

impl FromStr for LogFilter

type Err = LogLevelError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<LogFilter, LogLevelError>

Parses a string s to return a value of this type.

impl PartialEq<LogFilter> for LogFilter

fn eq(&self, other: &LogFilter) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for LogFilter

impl Eq for LogFilter

impl StructuralEq for LogFilter

impl StructuralPartialEq for LogFilter