Enum UpstreamError

pub enum UpstreamError {
    LookupFailed(Error),
    EmptyLookupResult,
}

Indicates failures in the upstream error api.

Variants

LookupFailed(Error)

Raised if the DNS lookup for an upstream host failed.

EmptyLookupResult

Raised if the DNS lookup succeeded but an empty result was returned.

Trait Implementations

impl Debug for UpstreamError

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

Formats the value using the given formatter.

impl Display for UpstreamError

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

Formats the value using the given formatter.

impl Error for UpstreamError

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.