Enum Error 

#[non_exhaustive]
pub enum Error {
    InvalidScheme,
    InvalidNid,
    InvalidNss,
    InvalidRComponent,
    InvalidQComponent,
    InvalidFComponent,
    AllocRequired,
    InvalidUtf8,
}

A URN validation error.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

InvalidScheme

The URN has an invalid scheme.

InvalidNid

The URN has an invalid NID (Namespace ID).

InvalidNss

The URN has an invalid NSS (Namespace-specific string).

InvalidRComponent

The URN has an invalid r-component.

InvalidQComponent

The URN has an invalid q-component.

InvalidFComponent

The URN has an invalid f-component.

AllocRequired

Allocation is required, but not possible. This is only ever created when alloc feature is disabled.

InvalidUtf8

The input bytes are not valid UTF-8.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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 PartialEq for Error

fn eq(&self, other: &Error) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Error

impl Eq for Error

impl StructuralPartialEq for Error