Enum BuildError 

#[non_exhaustive]
pub enum BuildError {
    NoSink,
    InvalidFilter(ParseFilterError),
}

Available on crate feature std only.

Error returned by LoggerBuilder::try_build.

Examples

use log_io::{BuildError, Logger};

let err = Logger::builder().try_build().unwrap_err();
assert!(matches!(err, BuildError::NoSink));

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

NoSink

No sink was installed. Add one with LoggerBuilder::with_sink, LoggerBuilder::writer, or a shortcut such as LoggerBuilder::stdout_json.

InvalidFilter(ParseFilterError)

A directive passed to LoggerBuilder::filter_directive or read by LoggerBuilder::env_filter did not parse. Fix the directive (the error names the offending segment).

Trait Implementations

impl Clone for BuildError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BuildError

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

Formats the value using the given formatter.

impl Display for BuildError

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

Formats the value using the given formatter.

impl Eq for BuildError

impl Error for BuildError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl PartialEq for BuildError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for BuildError