Enum Error 

#[non_exhaustive]
pub enum Error {
    Id(IdError),
    Codec(CodecError),
    Store(StoreError),
    Object(ObjectError),
    Repo(RepoError),
    Sign(SignError),
}

Top-level error type returned by mnem-core public APIs.

Variants are intentionally coarse-grained. Each module’s native error type carries the detail; this top-level enum exists so callers can match on category without depending on every sub-module’s error shape.

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.

Id(IdError)

An identity primitive (stable ID, multihash, CID, link) was malformed.

Codec(CodecError)

A canonical-encoding round-trip failed.

Store(StoreError)

A blockstore operation (has/get/put/delete) failed.

Object(ObjectError)

An object (Node/Edge/Tree/Commit/…) was malformed or invalid.

Repo(RepoError)

A repository-level operation failed (init, open, commit, …).

Sign(SignError)

A signing or verification operation failed.

Implementations

impl Error

pub const fn is_uninitialized(&self) -> bool

true iff this error means “the op-heads store is empty; call crate::repo::ReadonlyRepo::init first”. Callers typically use it to decide whether to auto-initialise vs. propagate.

Prefer this over stringly-typed format!("{e}").contains(...) matches: the latter silently breaks on any wording change.

Trait Implementations

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 From<CodecError> for Error

fn from(source: CodecError) -> Self

Converts to this type from the input type.

impl From<IdError> for Error

fn from(source: IdError) -> Self

Converts to this type from the input type.

impl From<ObjectError> for Error

fn from(source: ObjectError) -> Self

Converts to this type from the input type.

impl From<RepoError> for Error

fn from(source: RepoError) -> Self

Converts to this type from the input type.

impl From<SignError> for Error

fn from(source: SignError) -> Self

Converts to this type from the input type.

impl From<StoreError> for Error

fn from(source: StoreError) -> Self

Converts to this type from the input type.