Struct scrypto_test::prelude::hash_map::OccupiedError
source · pub struct OccupiedError<'a, K, V>where
K: 'a,
V: 'a,{
pub entry: OccupiedEntry<'a, K, V>,
pub value: V,
}
🔬This is a nightly-only experimental API. (
map_try_insert
)Expand description
The error returned by try_insert
when the key already exists.
Contains the occupied entry, and the value that was not inserted.
Fields§
§entry: OccupiedEntry<'a, K, V>
🔬This is a nightly-only experimental API. (
map_try_insert
)The entry in the map that was already occupied.
value: V
🔬This is a nightly-only experimental API. (
map_try_insert
)The value which was not inserted, because the entry was already occupied.
Trait Implementations§
source§impl<K, V> Debug for OccupiedError<'_, K, V>
impl<K, V> Debug for OccupiedError<'_, K, V>
source§impl<'a, K, V> Display for OccupiedError<'a, K, V>
impl<'a, K, V> Display for OccupiedError<'a, K, V>
source§impl<'a, K, V> Error for OccupiedError<'a, K, V>
impl<'a, K, V> Error for OccupiedError<'a, K, V>
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)>
The lower-level source of this error, if any. Read more
Auto Trait Implementations§
impl<'a, K, V> RefUnwindSafe for OccupiedError<'a, K, V>where
K: RefUnwindSafe,
V: RefUnwindSafe,
impl<'a, K, V> Send for OccupiedError<'a, K, V>
impl<'a, K, V> Sync for OccupiedError<'a, K, V>
impl<'a, K, V> Unpin for OccupiedError<'a, K, V>
impl<'a, K, V> !UnwindSafe for OccupiedError<'a, K, V>
Blanket Implementations§
§impl<U> As for U
impl<U> As for U
§fn as_<T>(self) -> Twhere
T: CastFrom<U>,
fn as_<T>(self) -> Twhere
T: CastFrom<U>,
Casts
self
to type T
. The semantics of numeric casting with the as
operator are followed, so <T as As>::as_::<U>
can be used in the same way as T as U
for numeric conversions. Read moresource§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Convert
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
.§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s.§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.