stdx::anymap

Enum Entry

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pub enum Entry<'map, A: ?Sized + Downcast, V> {
    Occupied(OccupiedEntry<'map, A, V>),
    Vacant(VacantEntry<'map, A, V>),
}
Expand description

A view into a single location in an Map, which may be vacant or occupied.

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Occupied(OccupiedEntry<'map, A, V>)

An occupied Entry

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Vacant(VacantEntry<'map, A, V>)

A vacant Entry

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impl<'map, A: ?Sized + Downcast, V: IntoBox<A>> Entry<'map, A, V>

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pub fn or_insert_with<F: FnOnce() -> V>(self, default: F) -> &'map mut V

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.

Auto Trait Implementations§

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impl<'map, A, V> Freeze for Entry<'map, A, V>
where A: ?Sized,

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impl<'map, A, V> RefUnwindSafe for Entry<'map, A, V>
where V: RefUnwindSafe, A: RefUnwindSafe + ?Sized,

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impl<'map, A, V> Send for Entry<'map, A, V>
where V: Send, A: Send + ?Sized,

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impl<'map, A, V> Sync for Entry<'map, A, V>
where V: Sync, A: Sync + ?Sized,

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impl<'map, A, V> Unpin for Entry<'map, A, V>
where V: Unpin, A: ?Sized,

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impl<'map, A, V> !UnwindSafe for Entry<'map, A, V>

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoBox<dyn Any> for T
where T: Any,

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fn into_box(self) -> Box<dyn Any>

Convert self into the appropriate boxed form.
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impl<T> IntoBox<dyn Any + Send> for T
where T: Any + Send,

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fn into_box(self) -> Box<dyn Any + Send>

Convert self into the appropriate boxed form.
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impl<T> IntoBox<dyn Any + Sync + Send> for T
where T: Any + Send + Sync,

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fn into_box(self) -> Box<dyn Any + Sync + Send>

Convert self into the appropriate boxed form.
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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more