Struct scylla::deserialize::TypeCheckError

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

An error indicating that a failure happened during type check.

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

• row::BuiltinTypeCheckError is returned when type check of one of types with an impl built into the driver fails. It is also returned from impls generated by the DeserializeRow macro.
• value::BuiltinTypeCheckError is analogous to the above but is returned from DeserializeValue::type_check 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::BuiltinTypeCheckError.

Implementations

impl TypeCheckError

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

Constructs a new TypeCheckError.

pub fn downcast_ref<T>(&self) -> Option<&T>

where T: Error + 'static,

Retrieve an error reason by downcasting to specific type.

Trait Implementations

impl Clone for TypeCheckError

fn clone(&self) -> TypeCheckError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TypeCheckError

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

Formats the value using the given formatter.

impl Display for TypeCheckError

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

Formats the value using the given formatter.

impl Error for TypeCheckError

fn source(&self) -> Option<&(dyn Error + 'static)>

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<TypeCheckError> for FirstRowError

fn from(source: TypeCheckError) -> Self

Converts to this type from the input type.

impl From<TypeCheckError> for IntoLegacyQueryResultError

fn from(source: TypeCheckError) -> Self

Converts to this type from the input type.

impl From<TypeCheckError> for MaybeFirstRowError

fn from(source: TypeCheckError) -> Self

Converts to this type from the input type.

impl From<TypeCheckError> for RowsError

fn from(source: TypeCheckError) -> Self

Converts to this type from the input type.

impl From<TypeCheckError> for SingleRowError

fn from(source: TypeCheckError) -> Self

Converts to this type from the input type.