Struct tracing_fmt::filter::env::EnvFilter

pub struct EnvFilter { /* fields omitted */ }

Methods

impl EnvFilter

pub fn from_default_env() -> Self

Returns a new EnvFilter from the value of the RUST_LOG environment variable, ignoring any invalid filter directives.

pub fn from_env<A: AsRef<str>>(env: A) -> Self

Returns a new EnvFilter from the value of the given environment variable, ignoring any invalid filter directives.

pub fn new<S: AsRef<str>>(dirs: S) -> Self

Returns a new EnvFilter from the directives in the given string, ignoring any that are invalid.

pub fn try_new<S: AsRef<str>>(dirs: S) -> Result<Self, ParseError>

Returns a new EnvFilter from the directives in the given string, or an error if any are invalid.

pub fn try_from_default_env() -> Result<Self, FromEnvError>

Returns a new EnvFilter from the value of the RUST_LOG environment variable, or an error if the environment variable contains any invalid filter directives.

pub fn try_from_env<A: AsRef<str>>(env: A) -> Result<Self, FromEnvError>

Returns a new EnvFilter from the value of the given environment variable, or an error if the environment variable is unset or contains any invalid filter directives.

Trait Implementations

impl<N> Filter<N> for EnvFilter

fn callsite_enabled(&self, metadata: &Metadata, _: &Context<N>) -> Interest

fn enabled<'a>(&self, metadata: &Metadata, ctx: &Context<'a, N>) -> bool

impl Default for EnvFilter

fn default() -> Self

Returns the "default value" for a type.

impl<S> From<S> for EnvFilter where
    S: AsRef<str>, 

fn from(s: S) -> Self

Performs the conversion.

impl Display for EnvFilter

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

Formats the value using the given formatter.

impl Debug for EnvFilter

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

Formats the value using the given formatter.

impl FromStr for EnvFilter

type Err = ParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

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