Enum Error

pub enum Error<D: Domain> {
    Domain(Box<D>),
    Bug(Bug),
}

Use Result<T, explicit_error::Error> as the return type of any binary crate faillible function returning errors. The Error::Bug variant is for errors that should not happen but cannot panic. The Error::Domain variant is for domain errors that provide feedbacks to the user. For library or functions that require the caller to pattern match on the returned error, a dedicated type is prefered.

Variants

Domain(Box<D>)

Bug(Bug)

Implementations

impl<D> Error<D>

where D: Domain,

pub fn is_domain(&self) -> bool

Return true if it’s a Error::Domain variant

pub fn is_bug(&self) -> bool

Return true if it’s a Error::Bug variant

pub fn unwrap(self) -> D

Unwrap the Error::Domain variant, panic otherwise

pub fn unwrap_bug(self) -> Bug

Unwrap the Error::Bug variant, panic otherwise

pub fn unwrap_source(self) -> Box<dyn StdError + 'static>

Unwrap the source of either Error::Domain or Error::Bug variant, panic otherwise

Trait Implementations

impl<D: Debug + Domain> Debug for Error<D>

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

Formats the value using the given formatter.

impl<D> Display for Error<D>

where D: Domain,

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

Formats the value using the given formatter.

impl<D> Error for Error<D>

where D: Domain,

fn source(&self) -> Option<&(dyn StdError + '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<D> From<Bug> for Error<D>

where D: Domain,

fn from(value: Bug) -> Self

Converts to this type from the input type.