Enum KeyError

pub enum KeyError {
    TooShort,
    NotFound,
    TooLong,
}

Errors that can occur when using the Tree traits.

A usize member indicates the key depth where the error occurred. The depth here is the number of names or indices consumed. It is also the number of separators in a path or the length of an indices slice.

If multiple errors are applicable simultaneously the precedence is as per the order in the enum definition (from high to low).

Variants

TooShort

The key ends early and does not reach a leaf node.

NotFound

The key was not found (index parse failure or too large, name not found or invalid).

TooLong

The key is too long and goes beyond a leaf node.

Trait Implementations

impl Clone for KeyError

fn clone(&self) -> KeyError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for KeyError

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

Formats the value using the given formatter.

impl Display for KeyError

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

Formats the value using the given formatter.

impl Error for KeyError

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<E> From<KeyError> for DescendError<E>

fn from(source: KeyError) -> Self

Converts to this type from the input type.

impl<E> From<KeyError> for SerdeError<E>

fn from(value: KeyError) -> Self

Converts to this type from the input type.

impl From<KeyError> for ValueError

fn from(source: KeyError) -> Self

Converts to this type from the input type.

impl PartialEq for KeyError

fn eq(&self, other: &KeyError) -> 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<E> TryFrom<DescendError<E>> for KeyError

type Error = E

The type returned in the event of a conversion error.

fn try_from(value: DescendError<E>) -> Result<Self, Self::Error>

Performs the conversion.

impl<E> TryFrom<SerdeError<E>> for KeyError

type Error = SerdeError<E>

The type returned in the event of a conversion error.

fn try_from(value: SerdeError<E>) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<ValueError> for KeyError

type Error = ValueError

The type returned in the event of a conversion error.

fn try_from(value: ValueError) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for KeyError

impl Eq for KeyError

impl StructuralPartialEq for KeyError