Struct LogContext 

pub struct LogContext {
    pub local: LogFields,
    pub inherited: LogFields,
}

A set of fields that can be attached to a logging scope.

Fields are split into two categories:

• local - fields belonging only to the current scope. They do not propagate to child scopes.
• inherited - fields that automatically flow into all child scopes created within the current scope.

Nested scopes resolution rules:

• child inherited overwrites parent inherited by key
• inherited are emitted before local, so “last write wins” consumers see local shadowing

Fields

local: LogFields

Fields belonging only to the current scope.

inherited: LogFields

Fields that automatically flow into all child scopes created within the current scope.

Implementations

impl LogContext

pub fn new() -> Self

Creates a new, empty context.

pub fn with_local_field( self, key: impl Into<Cow<'static, str>>, value: impl Into<LogValue>, ) -> Self

Adds a key-value field to the local fields of this context.

See LogFields for more details about log fields.

pub fn with_inherited_field( self, key: impl Into<Cow<'static, str>>, value: impl Into<LogValue>, ) -> Self

Adds a key-value pair to the inherited fields of this context.

See LogFields for more details about log fields.

pub fn is_empty(&self) -> bool

Returns true if both local and inherited fields are empty.

Trait Implementations

impl Clone for LogContext

fn clone(&self) -> LogContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LogContext

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

Formats the value using the given formatter.

impl Default for LogContext

fn default() -> LogContext

Returns the “default value” for a type.

impl LogContextExt for LogContext

fn in_scope<R>(self, f: impl FnOnce() -> R) -> R

Enters this context, runs a closure, and exits the scope automatically.