Struct LogValue 

pub struct LogValue(/* private fields */);

Represents a value that can be stored in a log field.

The LogValue type is a flexible container designed to hold various kinds of data that can be associated with a log entry. It supports primitive types, strings, and more complex types such as those implementing std::fmt::Debug, std::fmt::Display, std::error::Error, or serde::Serialize.

This allows for rich and structured logging, enabling developers to attach meaningful context to log messages.

Examples

use context_logger::LogValue;

let value = LogValue::display("example string");
let number = LogValue::from(42);
let debug_value = LogValue::debug(vec![1, 2, 3]);

Implementations

impl LogValue

pub fn null() -> Self

Creates a null log value.

pub fn serde<S>(value: S) -> Self

where S: Serialize + Send + Sync + 'static,

Creates a log value from a serde::Serialize.

pub fn display<T>(value: T) -> Self

where T: Display + Send + Sync + 'static,

Creates a log value from a std::fmt::Display.

pub fn debug<T>(value: T) -> Self

where T: Debug + Send + Sync + 'static,

Creates a log value from a std::fmt::Debug.

pub fn error<T>(value: T) -> Self

where T: Error + Send + Sync + 'static,

Creates a log value from a std::error::Error.

pub fn as_log_value(&self) -> Value<'_>

Converts the log value to a value compatible with the log crate.

Trait Implementations

impl Clone for LogValue

fn clone(&self) -> LogValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LogValue

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

Formats the value using the given formatter.

impl Display for LogValue

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

Formats the value using the given formatter.

impl From<&str> for LogValue

fn from(value: &str) -> Self

Converts to this type from the input type.

impl From<Cow<'_, str>> for LogValue

fn from(value: Cow<'_, str>) -> Self

Converts to this type from the input type.

impl From<String> for LogValue

fn from(value: String) -> Self

Converts to this type from the input type.

impl From<bool> for LogValue

fn from(value: bool) -> Self

Converts to this type from the input type.

impl From<char> for LogValue

fn from(value: char) -> Self

Converts to this type from the input type.

impl From<f32> for LogValue

fn from(value: f32) -> Self

Converts to this type from the input type.

impl From<f64> for LogValue

fn from(value: f64) -> Self

Converts to this type from the input type.

impl From<i8> for LogValue

fn from(value: i8) -> Self

Converts to this type from the input type.

impl From<i16> for LogValue

fn from(value: i16) -> Self

Converts to this type from the input type.

impl From<i32> for LogValue

fn from(value: i32) -> Self

Converts to this type from the input type.

impl From<i64> for LogValue

fn from(value: i64) -> Self

Converts to this type from the input type.

impl From<i128> for LogValue

fn from(value: i128) -> Self

Converts to this type from the input type.

impl From<u8> for LogValue

fn from(value: u8) -> Self

Converts to this type from the input type.

impl From<u16> for LogValue

fn from(value: u16) -> Self

Converts to this type from the input type.

impl From<u32> for LogValue

fn from(value: u32) -> Self

Converts to this type from the input type.

impl From<u64> for LogValue

fn from(value: u64) -> Self

Converts to this type from the input type.

impl From<u128> for LogValue

fn from(value: u128) -> Self

Converts to this type from the input type.