Enum ConfigError 

#[non_exhaustive]
pub enum ConfigError {
    MissingField {
        field: &'static str,
    },
    ParseError {
        field: &'static str,
        source: String,
        message: String,
    },
    Io(Error),
    Format {
        path: PathBuf,
        message: String,
    },
}

Error returned by ConfigLoad::load.

Stability

This enum is #[non_exhaustive]: new error variants may be added in minor releases. Match on it with a trailing wildcard arm (_ => ...) in downstream code so that adding a variant is not a breaking change.

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.

MissingField

A required field has no value from any source.

Fields

field: &'static str

ParseError

A value was present but could not be parsed to the field’s type.

Fields

field: &'static str

source: String

message: String

Io(Error)

I/O error reading a config file.

Format

TOML parse error in a config file.

Fields

path: PathBuf

message: String

Trait Implementations

impl Debug for ConfigError

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

Formats the value using the given formatter.

impl Display for ConfigError

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

Formats the value using the given formatter.

impl Error for ConfigError

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 From<Error> for ConfigError

fn from(e: Error) -> ConfigError

Converts to this type from the input type.