rune::core::gc::root

Struct ObjectMap

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#[repr(transparent)]
pub(crate) struct ObjectMap<K, V>(UnsafeCell<IndexMap<K, V>>);
Expand description

A HashMap that can hold values past garbage collection.

This type is needed because Garbage Collection can move keys, which changes their hash value. ObjectMap will rehash the keys after collection.

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§0: UnsafeCell<IndexMap<K, V>>

Trait Implementations§

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impl<K, V> Default for ObjectMap<K, V>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<K, V> Trace for ObjectMap<K, V>
where K: Trace + Hash + Eq, V: Trace,

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fn trace(&self, state: &mut GcState)

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impl<K: Debug, V: Debug> Debug for ObjectMap<K, V>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<K, V> !Freeze for ObjectMap<K, V>

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impl<K, V> !RefUnwindSafe for ObjectMap<K, V>

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impl<K, V> Send for ObjectMap<K, V>
where K: Send, V: Send,

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impl<K, V> !Sync for ObjectMap<K, V>

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impl<K, V> Unpin for ObjectMap<K, V>
where K: Unpin, V: Unpin,

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impl<K, V> UnwindSafe for ObjectMap<K, V>
where K: UnwindSafe, V: UnwindSafe,

Blanket Implementations§

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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, 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, 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<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.