Enum PersistenceError 

pub enum PersistenceError {
    StorageError(String),
    InvalidFormat,
    UnsupportedVersion {
        stored: u32,
        supported: u32,
    },
    NotFound,
    CryptoError(String),
}

Errors that can occur during persistence operations.

Variants

StorageError(String)

Storage backend error

InvalidFormat

Data corruption or invalid format

UnsupportedVersion

Version mismatch (stored version newer than supported)

Fields

stored: u32

Version found in the stored data

supported: u32

Maximum version supported by this code

NotFound

Required data not found

CryptoError(String)

Cryptographic operation failed

Trait Implementations

impl Clone for PersistenceError

fn clone(&self) -> PersistenceError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PersistenceError

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

Formats the value using the given formatter.

impl Display for PersistenceError

Available on crate feature std only.

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

Formats the value using the given formatter.

impl Error for PersistenceError

Available on crate feature std only.

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 PartialEq for PersistenceError

fn eq(&self, other: &PersistenceError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for PersistenceError

impl StructuralPartialEq for PersistenceError