Enum Nip55Error 

pub enum Nip55Error {
    NotAuthorized,
    Missing,
    Ipc(String),
}

Failure modes of a NIP-55 signing operation. The three variants map to distinct observable states so the UI can tell “reopen and re-grant” apart from “Amber is gone” apart from “transient hiccup”.

Variants

NotAuthorized

Not pre-authorized: the background ContentResolver query returned a rejected/null result and no foreground Activity was available to prompt. Surfaces as Nip55State::NeedsAuth. MUST NEVER be read as a valid empty decrypt — a null cursor is an authorization signal, not data.

Missing

No external signer resolvable — Amber uninstalled, or no backend registered on this platform. Surfaces as Nip55State::Missing.

Ipc(String)

Any other IPC / parse / transport failure. Transient — does not flip the observable state (the signer is presumed still paired).

Trait Implementations

impl Clone for Nip55Error

fn clone(&self) -> Nip55Error

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Nip55Error

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

Formats the value using the given formatter.

impl Display for Nip55Error

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

Formats the value using the given formatter.

impl Error for Nip55Error

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.