Enum CacheError 

pub enum CacheError {
    Io {
        op: &'static str,
        path: PathBuf,
        source: Error,
    },
    Serialize(Error),
}

Cache I/O failures. Soft errors (missing file, parse failure) surface as Ok(None) from the read API; this enum only covers the cases the caller cannot safely ignore.

Variants

Io

File-system errors. Includes the path under operation for triage.

Fields

op: &'static str

Logical operation that failed (write, rename, etc).

path: PathBuf

Filesystem path involved.

source: Error

Inner I/O failure.

Serialize(Error)

serde_json::to_string failed. Effectively unreachable for our payload but exposed in the public error enum so the caller’s match is exhaustive without _ => wildcards.

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, __formatter: &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.