pub type Never = Infallible;
Expand description
A type with no possible values.
This is used to indicate values which can never be created, such as the error type of infallible futures.
This type is a stable equivalent to the !
type from std
.
This is currently an alias for std::convert::Infallible
, but in
the future it may be an alias for !
.
See “Future compatibility” section of std::convert::Infallible
for more.
Aliased Type§
enum Never {}
Variants§
Trait Implementations
1.34.0 · source§impl Clone for Infallible
impl Clone for Infallible
source§fn clone(&self) -> Infallible
fn clone(&self) -> Infallible
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read more1.34.0 · source§impl Debug for Infallible
impl Debug for Infallible
1.34.0 · source§impl Display for Infallible
impl Display for Infallible
1.8.0 · source§impl Error for Infallible
impl Error for Infallible
source§fn description(&self) -> &str
fn description(&self) -> &str
👎Deprecated since 1.42.0: use the Display impl or to_string()
1.30.0 · source§fn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
Returns the lower-level source of this error, if any. Read more
1.34.0 · source§impl From<!> for Infallible
impl From<!> for Infallible
source§fn from(x: !) -> Infallible
fn from(x: !) -> Infallible
Converts to this type from the input type.
1.44.0 · source§impl Hash for Infallible
impl Hash for Infallible
1.34.0 · source§impl Ord for Infallible
impl Ord for Infallible
source§fn cmp(&self, _other: &Infallible) -> Ordering
fn cmp(&self, _other: &Infallible) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the maximum of two values. Read more