Enum ValueError

pub enum ValueError {
    Key(KeyError),
    Absent,
    Access(&'static str),
}

Errors that can occur while accessing a value.

Variants

Key(KeyError)

Tree traversal error

Absent

A node does not exist at runtime.

An enum variant in the tree towards the node is currently absent. This is for example the case if an Option using the Tree* traits is None at runtime. See also crate::TreeSchema.

Access(&'static str)

A node could not be accessed or is invalid.

This is returned from custom implementations.

Trait Implementations

impl Clone for ValueError

fn clone(&self) -> ValueError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValueError

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

Formats the value using the given formatter.

impl Display for ValueError

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

Formats the value using the given formatter.

impl Error for ValueError

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<KeyError> for ValueError

fn from(source: KeyError) -> Self

Converts to this type from the input type.

impl<E> From<ValueError> for SerdeError<E>

fn from(source: ValueError) -> Self

Converts to this type from the input type.

impl PartialEq for ValueError

fn eq(&self, other: &ValueError) -> 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<SerdeError<E>> for ValueError

type Error = 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 ValueError

impl Eq for ValueError

impl StructuralPartialEq for ValueError