Enum Error 

#[non_exhaustive]
pub enum Error {
    IoError(Error),
    JsonError(Error),
    Lock {
        path: PathBuf,
        source: Error,
    },
    Cleanup {
        cleanup: Box<Error>,
        original: Box<Error>,
    },
}

The kinds of error that persisting a value to a file can produce.

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.

IoError(Error)

An I/O operation on the file failed.

JsonError(Error)

The value could not be serialized to, or deserialized from, JSON.

Lock

The file could not be locked for exclusive access.

Fields

path: PathBuf

The path that could not be locked.

source: Error

The underlying I/O failure.

Cleanup

An operation failed, and so did the cleanup that followed it.

Fields

cleanup: Box<Error>

The failure of the cleanup step itself.

original: Box<Error>

The failure that prompted the cleanup.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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 From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.