Enum ExtensionRegistryError 

#[non_exhaustive]
pub enum ExtensionRegistryError {
    AlreadyRegistered(String),
    NotRegistered(String),
    Downcast(String),
    Other(Box<dyn Error + Send + Sync>),
}

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.

AlreadyRegistered(String)

The provided context was already registered. Contains the type_name of the provided context.

NotRegistered(String)

Unable to find a context instance of the requested type. Contains the type_name of the requested type.

Downcast(String)

Unable to downcast the registered instance to the requested type. Contains the type_name of the requested type.

Other(Box<dyn Error + Send + Sync>)

Trait Implementations

impl Debug for ExtensionRegistryError

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

Formats the value using the given formatter.

impl Display for ExtensionRegistryError

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

Formats the value using the given formatter.

impl Error for ExtensionRegistryError

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<Box<dyn Error + Sync + Send>> for ExtensionRegistryError

fn from(source: Box<dyn Error + Send + Sync>) -> Self

Converts to this type from the input type.

impl From<ExtensionRegistryError> for Error

fn from(source: ExtensionRegistryError) -> Self

Converts to this type from the input type.