Enum feattle_core::UpdateError

pub enum UpdateError<PersistError: Error + Send + Sync + 'static> {
    NeverReloaded,
    UnknownKey(String),
    Parsing(FromJsonError),
    Persistence(PersistError),
}

The error type returned by Feattles::update()

Variants

NeverReloaded

Cannot update because current values were never successfully loaded from the persist layer

UnknownKey(String)

The key is unknown

Parsing(FromJsonError)

Failed to parse the value from JSON

Persistence(PersistError)

Failed to persist new state

Trait Implementations

impl<PersistError: Debug + Error + Send + Sync + 'static> Debug for UpdateError<PersistError>

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

Formats the value using the given formatter.

impl<PersistError: Error + Send + Sync + 'static> Display for UpdateError<PersistError>

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

Formats the value using the given formatter.

impl<PersistError: Error + Send + Sync + 'static> Error for UpdateError<PersistError>

pub fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

pub fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

pub fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

pub fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl<PersistError: Error + Send + Sync + 'static> From<FromJsonError> for UpdateError<PersistError>

pub fn from(source: FromJsonError) -> Self

Performs the conversion.