Enum CacheError 

#[non_exhaustive]
pub enum CacheError {
    Driver(String),
    Serialization(String),
    InvalidKey(String),
    InspectionUnsupported,
    InvalidInspectionLimit,
}

Errors that can occur during cache operations.

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.

Driver(String)

The underlying driver encountered an error.

Serialization(String)

Serialization or deserialization failed.

InvalidKey(String)

A tenant-scoped cache key was empty, oversized, or contained unsafe bytes.

InspectionUnsupported

The selected backend does not expose metadata inspection.

InvalidInspectionLimit

A cache inspection requested zero or more than the fixed maximum.

Trait Implementations

impl Debug for CacheError

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

Formats the value using the given formatter.

impl Display for CacheError

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

Formats the value using the given formatter.

impl Error for CacheError

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.