Enum StorageError 

pub enum StorageError {
    Backend(Box<dyn Error + Send + Sync>),
    BadKeyLen {
        expected: usize,
        found: usize,
    },
    BadSubtreeKeyLen {
        depth: u8,
        expected: usize,
        found: usize,
    },
    BadValueLen {
        what: &'static str,
        expected: usize,
        found: usize,
    },
    Leaf(SmtLeafError),
    Subtree(SubtreeError),
    Unsupported(String),
    Value(DeserializationError),
}

Errors returned by any SmtStorage implementation.

Categories:

• Backend errors (DB/I/O)
• Decode/length mismatches with expected/actual parameters
• Unsupported operations
• Higher-level value and subtree decode failures

Variants

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

Backend I/O or database error (e.g., RocksDB).

BadKeyLen

Key bytes had the wrong length (e.g., leaf index key, subtree root key).

Fields

expected: usize

found: usize

BadSubtreeKeyLen

Subtree key bytes had the wrong length (e.g., subtree root key).

Fields

depth: u8

expected: usize

found: usize

BadValueLen

Value/metadata bytes had the wrong length (e.g., leaf/entry counts).

Fields

what: &'static str

expected: usize

found: usize

Leaf(SmtLeafError)

Leaf-level error (e.g., too many entries).

Subtree(SubtreeError)

Failed to (de)serialize a stored subtree blob.

Unsupported(String)

The requested operation is not supported by this backend.

Value(DeserializationError)

Higher-level type (e.g., Word) failed to decode from bytes.

Trait Implementations

impl Debug for StorageError

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

Formats the value using the given formatter.

impl Display for StorageError

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

Formats the value using the given formatter.

impl Error for StorageError

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 + Send + Sync>> for StorageError

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

Converts to this type from the input type.

impl From<DeserializationError> for StorageError

fn from(source: DeserializationError) -> StorageError

Converts to this type from the input type.

impl From<SmtLeafError> for StorageError

fn from(source: SmtLeafError) -> StorageError

Converts to this type from the input type.

impl From<StorageError> for LargeSmtError

fn from(source: StorageError) -> LargeSmtError

Converts to this type from the input type.

impl From<SubtreeError> for StorageError

fn from(source: SubtreeError) -> StorageError

Converts to this type from the input type.