Enum Error 

pub enum Error {
    CreateStore {
        reason: String,
    },
    Get {
        key: String,
        reason: String,
    },
    EntryNotFound {
        key: String,
    },
    Store {
        operation: StoreOperation,
        reason: String,
    },
}

Error type for the store system.

Variants

CreateStore

The store could not be created or initialized.

Returned when the underlying database cannot be opened or allocated.

Fields

reason: String

Get

Failed to retrieve data for key from the store.

Indicates an I/O or backend error while reading; the key may exist but is not readable. Use EntryNotFound when a key is simply absent.

Fields

key: String

reason: String

EntryNotFound

The requested key does not exist in the store.

Fields

key: String

Store

A store operation failed.

operation identifies which operation failed (e.g. persist, snapshot); reason contains the underlying error message.

Fields

operation: StoreOperation

reason: String

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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 Error

fn eq(&self, other: &Error) -> 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 Error

impl StructuralPartialEq for Error