Struct OptionalError

pub struct OptionalError(pub Option<Box<dyn Error + Send + Sync + 'static>>);

Wrapper for Option<Box<dyn Error>> to make it compatible with backtrace

This struct provides a way to handle optional error sources in a way that’s compatible with the backtrace error handling framework. It wraps an optional boxed error trait object and provides methods to work with it.

Tuple Fields

0: Option<Box<dyn Error + Send + Sync + 'static>>

Implementations

impl OptionalError

pub fn new(opt: Option<Box<dyn Error + Send + Sync + 'static>>) -> Self

Creates a new OptionalError from an optional boxed error

Parameters

• opt - An optional boxed error trait object

pub fn has_error(&self) -> bool

Checks if this OptionalError contains an actual error

Returns

true if there is an error, false otherwise

Trait Implementations

impl AsRef<Option<Box<dyn Error + Send + Sync>>> for OptionalError

fn as_ref(&self) -> &Option<Box<dyn Error + Send + Sync + 'static>>

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for OptionalError

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for OptionalError

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

Formats the value using the given formatter.

impl Display for OptionalError

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

Formats the value using the given formatter.

impl Error for OptionalError

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<Option<Box<dyn Error + Send + Sync>>> for OptionalError

fn from(opt: Option<Box<dyn Error + Send + Sync + 'static>>) -> Self

Converts to this type from the input type.