Enum Error

pub enum Error<Actual> {
    CasFailed(Actual),
    Unsupported(String),
    ReportableBug(String),
    Io(Error),
    Corruption {
        at: u64,
    },
}

An Error type encapsulating various issues that may come up in both the expected and unexpected operation of a PageCache.

Variants

CasFailed(Actual)

An atomic operation has failed, and the current value is provided

Unsupported(String)

The system has been used in an unsupported way.

ReportableBug(String)

An unexpected bug has happened. Please open an issue on github!

Io(Error)

A read or write error has happened when interacting with the file system.

Corruption

Corruption has been detected in the storage file.

Fields

at: u64

The file location that corrupted data was found at.

Implementations

impl<T> Error<T>

pub fn danger_cast<Other>(self) -> Error<Other>

Turns an Error<A> into an Error<B>.

Panics

Panics if the Error is of type Error::CasFailed

pub fn cast<Other>(self) -> Error<Other>

where Other: From<T>,

Turns an Error<A> into an Error<B>.

Trait Implementations

impl<Actual> Debug for Error<Actual>

where Actual: Debug,

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

Formats the value using the given formatter.

impl<A> Display for Error<A>

where A: Debug,

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

Formats the value using the given formatter.

impl<T> Error for Error<T>

where T: Debug,

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

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<T> From<Error> for Error<T>

fn from(io_error: Error) -> Error<T>

Converts to this type from the input type.

impl<A> PartialEq for Error<A>

where A: PartialEq,

fn eq(&self, other: &Error<A>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.