Enum ConfigError 

#[non_exhaustive]
pub enum ConfigError {
    UnknownDriver {
        kind: &'static str,
        name: String,
        available: Vec<String>,
    },
    MissingDriverSection {
        kind: &'static str,
        name: String,
    },
    Build {
        kind: &'static str,
        name: String,
        source: StorageError,
    },
}

Error returned when a [storage] configuration cannot be resolved against the driver Registry.

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.

UnknownDriver

A driver name in [storage] is not registered for its kind.

available lists every driver name registered for kind, so the operator can see the valid choices in the error message.

Fields

kind: &'static str

The storage-kind key that named the driver (e.g. "policy_store").

name: String

The unrecognized driver name from the config.

available: Vec<String>

Driver names registered for this kind, in sorted order.

MissingDriverSection

A driver was named but its [storage.<name>] subsection is missing.

Fields

kind: &'static str

The storage-kind key that named the driver.

name: String

The driver name whose subsection is absent.

Build

The driver’s factory failed to build the backend from its subsection.

Fields

kind: &'static str

The storage-kind key that named the driver.

name: String

The driver name being built.

source: StorageError

The underlying backend error.

Trait Implementations

impl Debug for ConfigError

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

Formats the value using the given formatter.

impl Display for ConfigError

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

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.