Enum ConfigError 

#[non_exhaustive]
pub enum ConfigError {
    InvalidValue {
        key: String,
        value: String,
        reason: String,
    },
    Read {
        path: String,
        source: Error,
    },
    Parse {
        path: String,
        message: String,
    },
}

Errors produced while loading or validating configuration.

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.

InvalidValue

A value could not be parsed or is out of range.

Fields

key: String

The setting or environment variable name.

value: String

The offending value.

reason: String

Why it was rejected.

Read

A configuration file could not be read.

Fields

path: String

The file path.

source: Error

The underlying I/O error.

Parse

A configuration file could not be parsed.

Fields

path: String

The file path.

message: String

The parser’s message.

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, __formatter: &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<ConfigError> for Error

fn from(err: ConfigError) -> Error

Converts to this type from the input type.