Enum Error

pub enum Error<K, E>
where
    K: Key,
    E: Error,
{
    Init(PathBuf),
    NotInCache(K),
    NotOnDisk(K),
    NotFound(K),
    FileOp(E),
    Immutable(K),
}

Errors produced by FileBackedLfuCache.

Variants

Init(PathBuf)

Cannot initialise the given path as a backing directory.

This can happen if the path does not resolve to a directory.

NotInCache(K)

An item cannot be found with this key in cache.

NotOnDisk(K)

An item cannot be found with this key on disk.

NotFound(K)

An item cannot be found with this key either in cache or on disk.

FileOp(E)

An error occurred when performing file operations.

The inner type is the user-defined associated type of AsyncFileRepr.

Immutable(K)

An item with this key is temporarily immutable due to outstanding references.

This can happen if you are holding a reference elsewhere, or if this item is in the process of being flushed to disk.

Trait Implementations

impl<K, E> Debug for Error<K, E>

where K: Key + Debug, E: Error + Debug,

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

Formats the value using the given formatter.

impl<K, E> Display for Error<K, E>

where K: Key, E: Error,

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

Formats the value using the given formatter.

impl<K, E> Error for Error<K, E>

where K: Key, E: Error, Self: Debug + Display,

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<K, E> From<E> for Error<K, E>

where K: Key, E: Error,

fn from(err: E) -> Self

Converts to this type from the input type.