Enum anymap2::raw::Entry [−][src]
A view into a single location in a RawMap
, which may be vacant or
occupied.
Variants
Occupied(OccupiedEntry<'a, A>)
An occupied Entry
Vacant(VacantEntry<'a, A>)
A vacant Entry
Implementations
impl<'a, A: ?Sized + UncheckedAnyExt> Entry<'a, A>
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pub unsafe fn or_insert(self, default: Box<A>) -> &'a mut A
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Ensures a value is in the entry by inserting the default if empty, and returns a mutable reference to the value in the entry.
Safety
It is the caller’s responsibility to ensure that the key of the entry
corresponds with the type ID of value
. If they do not, memory
safety may be violated.
pub unsafe fn or_insert_with<F: FnOnce() -> Box<A>>(
self,
default: F
) -> &'a mut A
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self,
default: F
) -> &'a mut A
Ensures a value is in the entry by inserting the result of the default function if empty, and returns a mutable reference to the value in the entry.
Safety
It is the caller’s responsibility to ensure that the key of the entry
corresponds with the type ID of value
. If they do not, memory
safety may be violated.
Auto Trait Implementations
impl<'a, A: ?Sized> RefUnwindSafe for Entry<'a, A> where
A: RefUnwindSafe,
A: RefUnwindSafe,
impl<'a, A: ?Sized> Send for Entry<'a, A> where
A: Send,
A: Send,
impl<'a, A: ?Sized> Sync for Entry<'a, A> where
A: Sync,
A: Sync,
impl<'a, A: ?Sized> Unpin for Entry<'a, A>
impl<'a, A> !UnwindSafe for Entry<'a, A>
Blanket Implementations
impl<T> Any for T where
T: Any,
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T: Any,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,