Struct DeserializationError

pub struct DeserializationError(/* private fields */);

An error indicating that a failure happened during deserialization.

The error is type-erased so that the crate users can define their own deserialization impls and their errors. As for the impls defined or generated by the driver itself, the following errors can be returned:

• row::BuiltinDeserializationError is returned when deserialization of one of types with an impl built into the driver fails. It is also returned from impls generated by the DeserializeRow macro.
• value::BuiltinDeserializationError is analogous to the above but is returned from DeserializeValue::deserialize instead both in the case of builtin impls and impls generated by the DeserializeValue macro. It won’t be returned by the Session directly, but it might be nested in the row::BuiltinDeserializationError.

Implementations

impl DeserializationError

pub fn new(err: impl Error + Send + Sync + 'static) -> Self

Constructs a new DeserializationError.

pub fn downcast_ref<T: Error + 'static>(&self) -> Option<&T>

Retrieve an error reason by downcasting to specific type.

Trait Implementations

impl Clone for DeserializationError

fn clone(&self) -> DeserializationError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DeserializationError

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

Formats the value using the given formatter.

impl Display for DeserializationError

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

Formats the value using the given formatter.

impl Error for DeserializationError

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.