Enum CacheError 

#[non_exhaustive]
pub enum CacheError {
    Io {
        path: PathBuf,
        source: Error,
    },
    NotACacheDir {
        path: PathBuf,
        tag: &'static str,
    },
    LowDiskSpace {
        path: PathBuf,
        bytes: u64,
    },
}

Why a disk cache operation failed.

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.

Io

A file system operation failed.

Fields

path: PathBuf

The file or directory operated on.

source: Error

The underlying error.

NotACacheDir

The directory exists but holds no cache marker, so it may hold someone else’s files.

Fields

path: PathBuf

The cache directory.

tag: &'static str

The marker file name, CACHEDIR_TAG.

LowDiskSpace

Writing would eat into the free space the automatic budget reserves for the file system (auto_disk_reserve).

Fields

path: PathBuf

The cache directory.

bytes: u64

Size of the write that was refused.

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.