Enum DekShredError 

#[non_exhaustive]
pub enum DekShredError {
    UnknownDek,
    AlreadyShredded,
    Backend(&'static str),
}

DEK shred failure taxonomy.

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.

UnknownDek

dek_id was not recognised — benign on replay of an already shredded user, fatal if the observer is first-seeing the event.

AlreadyShredded

DEK had been shredded on a previous call — the observer treats this as a no-op + reuses the cached attestation.

Backend(&'static str)

Backend-specific failure — network, auth, RPC error. Observers surface this via ProjectionError::Storage.

Trait Implementations

impl Debug for DekShredError

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

Formats the value using the given formatter.

impl Display for DekShredError

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

Formats the value using the given formatter.

impl Error for DekShredError

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.