Enum trust_dns_server::authority::LookupError

pub enum LookupError {
    NameExists,
    ResponseCode(ResponseCode),
    Io(Error),
}

A query could not be fulfilled

Variants

NameExists

A record at the same Name as the query exists, but not of the queried RecordType

ResponseCode(ResponseCode)

There was an error performing the lookup

Io(Error)

An underlying IO error occurred

Implementations

impl LookupError

pub fn as_name_exists_mut(&mut self) -> Option<()>

Optionally returns references to the inner fields if this is a LookupError::NameExists, otherwise None

pub fn as_name_exists(&self) -> Option<()>

Optionally returns references to the inner fields if this is a LookupError::NameExists, otherwise None

pub fn as_response_code_mut(&mut self) -> Option<&mut ResponseCode>

Optionally returns mutable references to the inner fields if this is a LookupError::ResponseCode, otherwise None

pub fn as_response_code(&self) -> Option<&ResponseCode>

Optionally returns references to the inner fields if this is a LookupError::ResponseCode, otherwise None

pub fn into_response_code(self) -> Result<ResponseCode, Self>

Returns the inner fields if this is a LookupError::ResponseCode, otherwise returns back the enum in the Err case of the result

pub fn as_io_mut(&mut self) -> Option<&mut Error>

Optionally returns mutable references to the inner fields if this is a LookupError::Io, otherwise None

pub fn as_io(&self) -> Option<&Error>

Optionally returns references to the inner fields if this is a LookupError::Io, otherwise None

pub fn into_io(self) -> Result<Error, Self>

Returns the inner fields if this is a LookupError::Io, otherwise returns back the enum in the Err case of the result

impl LookupError

pub fn for_name_exists() -> Self

Create a lookup error, specifying that a name exists at the location, but no matching RecordType

pub fn is_name_exists(&self) -> bool

True if other records exist at the same name, but not the searched for RecordType

pub fn is_nx_domain(&self) -> bool

This is a non-existent domain name

pub fn is_refused(&self) -> bool

This is a non-existent domain name

Trait Implementations

impl Debug for LookupError

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

Formats the value using the given formatter.

impl Display for LookupError

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

Formats the value using the given formatter.

impl Error for LookupError

pub fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

pub fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

pub fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

pub fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl From<Error> for LookupError

fn from(e: Error) -> Self

Performs the conversion.

impl From<ResponseCode> for LookupError

fn from(code: ResponseCode) -> Self

Performs the conversion.