Struct NullKeystore 

pub struct NullKeystore;

Returned by default_keystore when the crate was built without the keychain feature. Lets the rest of the codebase call load() without #[cfg] gates - it just always says “nothing stored”.

Trait Implementations

impl Clone for NullKeystore

fn clone(&self) -> NullKeystore

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NullKeystore

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

Formats the value using the given formatter.

impl Default for NullKeystore

fn default() -> NullKeystore

Returns the “default value” for a type.

impl Keystore for NullKeystore

fn save(&self, _user: &str, _secret: &str) -> Result<()>

Persist secret under (SERVICE, user). Overwrites any existing value. Returns an error only on real backend failure (e.g. no Secret Service daemon on Linux).

fn load(&self, _user: &str) -> Result<Option<String>>

Look up the secret for (SERVICE, user). Ok(None) means “looked, none stored” - which is the expected case on first use and must NOT be reported as an error.

fn forget(&self, _user: &str) -> Result<()>

Delete the entry for (SERVICE, user). Idempotent: deleting an entry that does not exist returns Ok(()).

impl Copy for NullKeystore