Struct Subscriber

pub struct Subscriber {
    pub format: Option<Format>,
    pub writer: Option<Writer>,
    pub filter: Option<Filter>,
}

Configuration for a totally dynamic subscriber.

Fields

format: Option<Format>

writer: Option<Writer>

filter: Option<Filter>

Implementations

impl Subscriber

pub fn layer<S>(self) -> (Layer<S>, Guard)

where S: Subscriber + for<'s> LookupSpan<'s>,

Create a new Layer, and a Guard that handles e.g flushing NonBlocking IO.

Errors when opening files or directories are deferred for the subscriber to handle (typically by logging). If you wish to handle them yourself, see Self::try_layer.

Note that filtering is ignored for layers.

pub fn try_layer<S>(self) -> Result<(Layer<S>, Guard), Error>

where S: Subscriber + for<'s> LookupSpan<'s>,

Create a new Layer, and a Guard that handles e.g flushing NonBlocking IO.

Returns Err if e.g opening a log file fails. If you wish the subscriber to handle them (typically by logging), see Self::layer.

Note that filtering is ignored for layers.

pub fn builder(self) -> (SubscriberBuilder, Guard)

Create a new SubscriberBuilder, and a Guard that handles e.g flushing NonBlocking IO.

Errors when opening files or directories are deferred for the subscriber to handle (typically by logging). If you wish to handle them yourself, see Self::try_builder.

pub fn try_builder(self) -> Result<(SubscriberBuilder, Guard), Error>

Create a new SubscriberBuilder, and a Guard that handles e.g flushing NonBlocking IO.

Returns Err if e.g opening a log file fails. If you wish the subscriber to handle them (typically by logging), see Self::builder.

Trait Implementations

impl Clone for Subscriber

fn clone(&self) -> Subscriber

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Subscriber

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

Formats the value using the given formatter.

impl Default for Subscriber

fn default() -> Subscriber

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Subscriber

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for Subscriber

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 Subscriber

fn cmp(&self, other: &Subscriber) -> 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.

impl PartialEq for Subscriber

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for Subscriber

fn partial_cmp(&self, other: &Subscriber) -> 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 Subscriber

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Subscriber

impl StructuralPartialEq for Subscriber