Enum Level 

pub enum Level {
    Debug,
    Info,
    Warn,
    Error,
}

A severity level for a diagnostic event.

If a crate::Event has a level associated with it, it can be pulled from its props:

match evt.props().pull::<emit::Level, _>(emit::well_known::KEY_LVL).unwrap_or_default() {
    emit::Level::Debug => {
        // The event is at the debug level
    }
    emit::Level::Info => {
        // The event is at the info level
    }
    emit::Level::Warn => {
        // The event is at the warn level
    }
    emit::Level::Error => {
        // The event is at the error level
    }
}

The default level is Level::Info.

Parsing

Level has a permissive parser that will match partial and incomplete contents, ignoring case. So long as the start of the text is a submatch of the full level, and any trailing unmatched characters are not ASCII control characters, the level will parse.

For example, the following will all be parsed as Level::Info:

• info
• INFO
• i
• inf
• information
• INFO1
• inf(13)

Note that any trailing data is lost when levels are parsed. That means, for example, that INFO3 and INFO4 will both parse to the same value, Level::Info, and will sort equivalently.

Variants

Debug

The event is weakly informative.

This variant is equal to LVL_DEBUG.

Info

The event is informative.

This variant is equal to LVL_INFO.

Warn

The event is weakly erroneous.

This variant is equal to LVL_WARN.

Error

The event is erroneous.

This variant is equal to LVL_ERROR.

Implementations

impl Level

pub fn try_from_str(s: &str) -> Result<Self, ParseLevelError>

Try parse a level from a formatted representation.

pub fn as_str(&self) -> &'static str

Get the value of the level as a string.

Trait Implementations

impl Clone for Level

fn clone(&self) -> Level

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Level

impl Debug for Level

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

Formats the value using the given formatter.

impl Default for Level

fn default() -> Self

Returns the “default value” for a type.

impl Display for Level

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

Formats the value using the given formatter.

impl Eq for Level

impl From<Level> for MinLevelFilter

fn from(min: Level) -> Self

Converts to this type from the input type.

impl FromStr for Level

type Err = ParseLevelError

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.

impl<'v> FromValue<'v> for Level

fn from_value(value: Value<'v>) -> Option<Self>

Perform the conversion.

impl Hash for Level

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Level

fn cmp(&self, other: &Level) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for Level

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Level

fn partial_cmp(&self, other: &Level) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for Level

Available on crate feature serde only.

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Level

impl ToValue for Level

fn to_value(&self) -> Value<'_>

Perform the conversion.

impl Value for Level

Available on crate feature sval only.

fn stream<'sval, S: Stream<'sval> + ?Sized>( &'sval self, stream: &mut S, ) -> Result

Stream this value through a Stream.

fn tag(&self) -> Option<Tag>

Get the tag of this value, if there is one.

fn to_bool(&self) -> Option<bool>

Try convert this value into a boolean.

fn to_f32(&self) -> Option<f32>

Try convert this value into a 32bit binary floating point number.

fn to_f64(&self) -> Option<f64>

Try convert this value into a 64bit binary floating point number.

fn to_i8(&self) -> Option<i8>

Try convert this value into a signed 8bit integer.

fn to_i16(&self) -> Option<i16>

Try convert this value into a signed 16bit integer.

fn to_i32(&self) -> Option<i32>

Try convert this value into a signed 32bit integer.

fn to_i64(&self) -> Option<i64>

Try convert this value into a signed 64bit integer.

fn to_i128(&self) -> Option<i128>

Try convert this value into a signed 128bit integer.

fn to_u8(&self) -> Option<u8>

Try convert this value into an unsigned 8bit integer.

fn to_u16(&self) -> Option<u16>

Try convert this value into an unsigned 16bit integer.

fn to_u32(&self) -> Option<u32>

Try convert this value into an unsigned 32bit integer.

fn to_u64(&self) -> Option<u64>

Try convert this value into an unsigned 64bit integer.

fn to_u128(&self) -> Option<u128>

Try convert this value into an unsigned 128bit integer.

fn to_text(&self) -> Option<&str>

Try convert this value into a text string.

fn to_binary(&self) -> Option<&[u8]>

Try convert this value into a bitstring.