Enum HashError 

pub enum HashError {
    HashMismatch {
        stored: String,
        expected: String,
    },
    UnknownParent {
        event_hash: String,
        parent_hash: String,
    },
    Compute(WriteError),
}

Errors from DAG hash verification.

Variants

HashMismatch

The stored event hash does not match the recomputed hash.

Fields

stored: String

The hash stored on the event (which is wrong).

expected: String

The hash we computed from the event’s fields (the correct value).

UnknownParent

A parent hash referenced by an event is not found in the event set.

Fields

event_hash: String

The hash of the event that has the bad parent reference.

parent_hash: String

The parent hash that was not found in the event set.

Compute(WriteError)

Failed to compute the hash of an event.

Implementations

impl HashError

pub const fn code(&self) -> HashErrorCode

Return the machine-readable error code for this error.

Trait Implementations

impl Debug for HashError

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

Formats the value using the given formatter.

impl Display for HashError

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

Formats the value using the given formatter.

impl Error for HashError

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<WriteError> for HashError

fn from(source: WriteError) -> Self

Converts to this type from the input type.