Enum TaskFailed 

pub enum TaskFailed {
    Panicked(Bug),
    Shutdown(Shutdown),
}

Why work apart from its caller gave no result.

Variants

Panicked(Bug)

The work panicked: a bug, which the caller reports.

Shutdown(Shutdown)

The runtime it ran on is shutting down and dropped it before it finished. Not a bug: the process is ending the work.

Implementations

impl TaskFailed

pub fn of_join(operation: &'static str, error: JoinError) -> Self

The failure a joined task’s error stands for. A task the runtime dropped may have run in part: ShutdownOutcome::Unknown. A task whose work runs under caught hands its panic back as a value, so its join fails only as its runtime ends it; a panic that reached the join uncaught gives a bug that can’t say where it began.

pub fn into_error<E: From<Bug> + From<Shutdown>>(self) -> E

This failure as the error of the call whose work it ended: its Bug for a panic, its Shutdown for the runtime dropping the work.

pub fn operation(&self) -> &'static str

What the failed work was doing, as its caller named it.

pub fn is_panic(&self) -> bool

Whether the work panicked, rather than being dropped by its runtime.

Trait Implementations

impl CarriesBug for TaskFailed

fn bug(&self) -> Option<&Bug>

The bug this error carries, itself or through the failure it keeps.

impl Clone for TaskFailed

fn clone(&self) -> TaskFailed

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TaskFailed

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

Formats the value using the given formatter.

impl Display for TaskFailed

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

Formats the value using the given formatter.

impl Error for TaskFailed

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<TaskFailed> for FileError

fn from(failed: TaskFailed) -> Self

Converts to this type from the input type.

impl PartialEq for TaskFailed

fn eq(&self, other: &TaskFailed) -> 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.

impl Eq for TaskFailed

impl StructuralPartialEq for TaskFailed