Struct ArcAnyhowError

pub struct ArcAnyhowError(/* private fields */);

An Arc’ed anyhow error.

It is not intended as a replacement for anyhow’s error, just a way to share it as well as a way to provide an error impl. This means that this error can itself be placed into an anyhow::Error.

Use Cases

This error is intended to be used where multiple tasks want the result of a singular, shared operation. Consider a web request to a server to a static resource X. It is not desired behavior to send multiple parallel requests to resource X at once. Instead one would send 1 request and have all tasks that need it wait of the result. However, this means that both X and the error must be clonable. X can be make Clone with Arc, and the error can be made clone with ArcAnyhowError.

Implementations

impl ArcAnyhowError

pub fn new(error: Error) -> Self

Make a new ArcAnyhowError.

Trait Implementations

impl Clone for ArcAnyhowError

fn clone(&self) -> ArcAnyhowError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ArcAnyhowError

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

Formats the value using the given formatter.

impl Display for ArcAnyhowError

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

Formats the value using the given formatter.

impl Error for ArcAnyhowError

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.