Struct cranelift_entity::SecondaryMap [−][src]
Expand description
A mapping K -> V
for densely indexed entity references.
The SecondaryMap
data structure uses the dense index space to implement a map with a vector.
Unlike PrimaryMap
, an SecondaryMap
can’t be used to allocate entity references. It is used
to associate secondary information with entities.
The map does not track if an entry for a key has been inserted or not. Instead it behaves as if all keys have a default entry from the beginning.
Implementations
impl<K, V> SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
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impl<K, V> SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
[src]Shared SecondaryMap
implementation for all value types.
pub fn with_capacity(capacity: usize) -> Self where
V: Default,
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pub fn with_capacity(capacity: usize) -> Self where
V: Default,
[src]Create a new, empty map with the specified capacity.
The map will be able to hold exactly capacity
elements without reallocating.
pub fn with_default(default: V) -> Self
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pub fn with_default(default: V) -> Self
[src]Create a new empty map with a specified default value.
This constructor does not require V to implement Default.
pub fn capacity(&self) -> usize
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pub fn capacity(&self) -> usize
[src]Returns the number of elements the map can hold without reallocating.
pub fn iter_mut(&mut self) -> IterMut<'_, K, V>ⓘ
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pub fn iter_mut(&mut self) -> IterMut<'_, K, V>ⓘ
[src]Iterate over all the keys and values in this map, mutable edition.
pub fn values_mut(&mut self) -> IterMut<'_, V>
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pub fn values_mut(&mut self) -> IterMut<'_, V>
[src]Iterate over all the values in this map, mutable edition.
Trait Implementations
impl<K: Clone, V: Clone> Clone for SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
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impl<K: Clone, V: Clone> Clone for SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
[src]fn clone(&self) -> SecondaryMap<K, V>
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fn clone(&self) -> SecondaryMap<K, V>
[src]Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
fn clone_from(&mut self, source: &Self)
1.0.0[src]Performs copy-assignment from source
. Read more
impl<K, V> Default for SecondaryMap<K, V> where
K: EntityRef,
V: Clone + Default,
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impl<K, V> Default for SecondaryMap<K, V> where
K: EntityRef,
V: Clone + Default,
[src]fn default() -> SecondaryMap<K, V>
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fn default() -> SecondaryMap<K, V>
[src]Returns the “default value” for a type. Read more
impl<K, V> Index<K> for SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
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impl<K, V> Index<K> for SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
[src]Immutable indexing into an SecondaryMap
.
All keys are permitted. Untouched entries have the default value.
impl<K, V> IndexMut<K> for SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
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impl<K, V> IndexMut<K> for SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
[src]Mutable indexing into an SecondaryMap
.
The map grows as needed to accommodate new keys.
impl<K, V> PartialEq<SecondaryMap<K, V>> for SecondaryMap<K, V> where
K: EntityRef,
V: Clone + PartialEq,
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impl<K, V> PartialEq<SecondaryMap<K, V>> for SecondaryMap<K, V> where
K: EntityRef,
V: Clone + PartialEq,
[src]impl<K, V> Eq for SecondaryMap<K, V> where
K: EntityRef,
V: Clone + PartialEq + Eq,
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K: EntityRef,
V: Clone + PartialEq + Eq,
Auto Trait Implementations
impl<K, V> Send for SecondaryMap<K, V> where
K: Send,
V: Send,
K: Send,
V: Send,
impl<K, V> Sync for SecondaryMap<K, V> where
K: Sync,
V: Sync,
K: Sync,
V: Sync,
impl<K, V> Unpin for SecondaryMap<K, V> where
K: Unpin,
V: Unpin,
K: Unpin,
V: Unpin,
Blanket Implementations
impl<T> BorrowMut<T> for T where
T: ?Sized,
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impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut T
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pub fn borrow_mut(&mut self) -> &mut T
[src]Mutably borrows from an owned value. Read more
impl<T> ToOwned for T where
T: Clone,
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impl<T> ToOwned for T where
T: Clone,
[src]type Owned = T
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn to_owned(&self) -> T
[src]Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
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pub fn clone_into(&self, target: &mut T)
[src]🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more