Struct UnknownVariant 

pub struct UnknownVariant {
    pub domain: &'static str,
    pub value: String,
    pub valid: &'static [&'static str],
}

A variant string was not recognized in a closed taxonomy.

Carries the rejected input, the domain name, and the list of valid values so callers get actionable error messages without re-matching.

Fields

domain: &'static str

value: String

valid: &'static [&'static str]

Implementations

impl UnknownVariant

pub fn new( domain: &'static str, value: impl Into<String>, valid: &'static [&'static str], ) -> Self

Trait Implementations

impl Clone for UnknownVariant

fn clone(&self) -> UnknownVariant

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UnknownVariant

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

Formats the value using the given formatter.

impl Display for UnknownVariant

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

Formats the value using the given formatter.

impl Error for UnknownVariant

Available on crate feature std only.

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<UnknownVariant> for TypeError

fn from(e: UnknownVariant) -> Self

Converts to this type from the input type.

impl PartialEq for UnknownVariant

fn eq(&self, other: &UnknownVariant) -> 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 Eq for UnknownVariant

impl StructuralPartialEq for UnknownVariant