Enum ConfigError 

pub enum ConfigError {
    OverwriteNotAllowed {
        position: ConfigPath,
        current_origin: Option<Origin>,
        incoming_origin: Option<Origin>,
    },
    MissingRequiredValue {
        position: ConfigPath,
    },
    CouldNotRead {
        path: PathBuf,
        cause: Error,
    },
    CouldNotParse {
        path: PathBuf,
        cause: Error,
    },
    DirectiveNotAllowed {
        path: PathBuf,
    },
    MismatchedVariants {
        position: ConfigPath,
        current: &'static str,
        incoming: &'static str,
    },
}

Everything that can go wrong while loading a configuration.

Variants

OverwriteNotAllowed

Merging would overwrite an existing value at the given path.

The origins are those of the settings involved; they are None when a setting has not been attributed to a document.

Fields

position: ConfigPath

current_origin: Option<Origin>

incoming_origin: Option<Origin>

MissingRequiredValue

A value that is required, and that has no built-in default, was not supplied by any document.

Fields

position: ConfigPath

CouldNotRead

A configuration document could not be read.

Fields

path: PathBuf

cause: Error

CouldNotParse

A configuration document is not valid TOML.

Fields

path: PathBuf

cause: Error

DirectiveNotAllowed

A system configuration fragment set use-system-config. Only the main configuration may do so.

Fields

path: PathBuf

MismatchedVariants

Documents provide different variants for an enum during a merge.

Fields

position: ConfigPath

current: &'static str

incoming: &'static str

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, f: &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.