Enum SignError 

#[non_exhaustive]
pub enum SignError {
    NotAnObject,
    MissingIssuer,
    IssuerMismatch {
        vm_did: String,
        issuer: String,
    },
    Serialize(Error),
    ProofRoundTrip(String),
    DataIntegrity(DataIntegrityError),
}

Errors surfaced by sign_trust_task.

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.

NotAnObject

The supplied document is not a JSON object; a Trust Task document is always a top-level object (SPEC.md §4.1).

MissingIssuer

The document carries no in-band issuer member. The stock verifier binds every proof to the in-band issuer (SPEC.md §4.7 / §4.8), so a proof minted without one could never verify; set issuer before signing.

IssuerMismatch

The document’s issuer is not the DID controlling the signer’s verificationMethod. Signing would succeed cryptographically but the emitted document would be rejected by every conforming verifier as an issuer-spoofing attempt.

Fields

vm_did: String

DID portion (before #) of the signer’s verificationMethod.

issuer: String

The document’s in-band issuer.

Serialize(Error)

The produced proof failed to serialise back to JSON.

ProofRoundTrip(String)

The proof this function emitted could not be read back into the framework’s typed Proof.

Raised only by ProofExt::sign, which lifts the emitted proof member onto a typed document. Reaching it means the upstream Data Integrity crate emitted a proof object that is not shaped like SPEC.md §4.7 — a dependency-version mismatch, not a caller error.

DataIntegrity(DataIntegrityError)

The underlying Data Integrity signing operation failed.

Trait Implementations

impl Debug for SignError

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

Formats the value using the given formatter.

impl Display for SignError

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

Formats the value using the given formatter.

impl Error for SignError

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<DataIntegrityError> for SignError

fn from(source: DataIntegrityError) -> Self

Converts to this type from the input type.

impl From<Error> for SignError

fn from(source: Error) -> Self

Converts to this type from the input type.