Enum Impossible 

pub enum Impossible {}

A helper type for using in generic code (e.g. as an associated type) to indicate a message that cannot be constructed.

Feel free to define a custom Impossible type as an empty enum if more implemented traits are needed.

Trait Implementations

impl Clone for Impossible

fn clone(&self) -> Impossible

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Impossible

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Impossible

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for Impossible

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Message for Impossible

fn name(&self) -> &'static str

fn protocol(&self) -> &'static str

impl PartialEq for Impossible

fn eq(&self, other: &Impossible) -> 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 Serialize for Impossible

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Impossible

impl Eq for Impossible

impl StructuralPartialEq for Impossible