Enum Never 

pub enum Never {}

Trait Implementations

impl CatalogCodec for Never

fn identify(&self) -> (DefinitionId, u32)

fn encode<S>( &self, _: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Clone for Never

fn clone(&self) -> Never

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Never

impl Debug for Never

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

Formats the value using the given formatter.

impl Eq for Never

impl PartialEq for Never

fn eq(&self, other: &Never) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl RecordCatalog for Never

fn restore(_: &DefinitionId, _: u32, _: &Value) -> Result<Option<Never>, Error>

impl StructuralPartialEq for Never

impl<S> Transaction<S> for Never

type Error = !

fn check(&self, _state: &S) -> Result<(), <Never as Transaction<S>>::Error>

fn apply(&self, _state: &mut S)

fn records(&self, _state: &S, _out: &mut Records)

impl<S> TransactionCatalog<S> for Never

fn replay(&self, prepared: &Prepared, state: &mut S) -> Result<(), DecodeError>