Struct cranelift_entity::SecondaryMap
source · [−]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
sourceimpl<K, V> SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
impl<K, V> SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
Shared SecondaryMap
implementation for all value types.
sourcepub fn with_capacity(capacity: usize) -> Self where
V: Default,
pub fn with_capacity(capacity: usize) -> Self where
V: Default,
Create a new, empty map with the specified capacity.
The map will be able to hold exactly capacity
elements without reallocating.
sourcepub fn with_default(default: V) -> Self
pub fn with_default(default: V) -> Self
Create a new empty map with a specified default value.
This constructor does not require V to implement Default.
sourcepub fn capacity(&self) -> usize
pub fn capacity(&self) -> usize
Returns the number of elements the map can hold without reallocating.
sourcepub fn iter(&self) -> Iter<'_, K, V>ⓘNotable traits for Iter<'a, K, V>impl<'a, K: EntityRef, V> Iterator for Iter<'a, K, V> type Item = (K, &'a V);
pub fn iter(&self) -> Iter<'_, K, V>ⓘNotable traits for Iter<'a, K, V>impl<'a, K: EntityRef, V> Iterator for Iter<'a, K, V> type Item = (K, &'a V);
Iterate over all the keys and values in this map.
sourcepub fn iter_mut(&mut self) -> IterMut<'_, K, V>ⓘNotable traits for IterMut<'a, K, V>impl<'a, K: EntityRef, V> Iterator for IterMut<'a, K, V> type Item = (K, &'a mut V);
pub fn iter_mut(&mut self) -> IterMut<'_, K, V>ⓘNotable traits for IterMut<'a, K, V>impl<'a, K: EntityRef, V> Iterator for IterMut<'a, K, V> type Item = (K, &'a mut V);
Iterate over all the keys and values in this map, mutable edition.
sourcepub fn keys(&self) -> Keys<K>ⓘNotable traits for Keys<K>impl<K: EntityRef> Iterator for Keys<K> type Item = K;
pub fn keys(&self) -> Keys<K>ⓘNotable traits for Keys<K>impl<K: EntityRef> Iterator for Keys<K> type Item = K;
Iterate over all the keys in this map.
sourcepub fn values_mut(&mut self) -> IterMut<'_, V>
pub fn values_mut(&mut self) -> IterMut<'_, V>
Iterate over all the values in this map, mutable edition.
Trait Implementations
sourceimpl<K: Clone, V: Clone> Clone for SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
impl<K: Clone, V: Clone> Clone for SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
sourcefn clone(&self) -> SecondaryMap<K, V>
fn clone(&self) -> SecondaryMap<K, V>
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl<K, V> Default for SecondaryMap<K, V> where
K: EntityRef,
V: Clone + Default,
impl<K, V> Default for SecondaryMap<K, V> where
K: EntityRef,
V: Clone + Default,
sourcefn default() -> SecondaryMap<K, V>
fn default() -> SecondaryMap<K, V>
Returns the “default value” for a type. Read more
sourceimpl<'de, K, V> Deserialize<'de> for SecondaryMap<K, V> where
K: EntityRef,
V: Clone + Deserialize<'de>,
impl<'de, K, V> Deserialize<'de> for SecondaryMap<K, V> where
K: EntityRef,
V: Clone + Deserialize<'de>,
sourcefn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where
D: Deserializer<'de>,
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where
D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
sourceimpl<K, V> Index<K> for SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
impl<K, V> Index<K> for SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
Immutable indexing into an SecondaryMap
.
All keys are permitted. Untouched entries have the default value.
sourceimpl<K, V> IndexMut<K> for SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
impl<K, V> IndexMut<K> for SecondaryMap<K, V> where
K: EntityRef,
V: Clone,
Mutable indexing into an SecondaryMap
.
The map grows as needed to accommodate new keys.
sourceimpl<K, V> PartialEq<SecondaryMap<K, V>> for SecondaryMap<K, V> where
K: EntityRef,
V: Clone + PartialEq,
impl<K, V> PartialEq<SecondaryMap<K, V>> for SecondaryMap<K, V> where
K: EntityRef,
V: Clone + PartialEq,
sourceimpl<K, V> Serialize for SecondaryMap<K, V> where
K: EntityRef,
V: Clone + PartialEq + Serialize,
impl<K, V> Serialize for SecondaryMap<K, V> where
K: EntityRef,
V: Clone + PartialEq + Serialize,
impl<K, V> Eq for SecondaryMap<K, V> where
K: EntityRef,
V: Clone + PartialEq + Eq,
Auto Trait Implementations
impl<K, V> RefUnwindSafe for SecondaryMap<K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,
impl<K, V> Send for SecondaryMap<K, V> where
K: Send,
V: Send,
impl<K, V> Sync for SecondaryMap<K, V> where
K: Sync,
V: Sync,
impl<K, V> Unpin for SecondaryMap<K, V> where
K: Unpin,
V: Unpin,
impl<K, V> UnwindSafe for SecondaryMap<K, V> where
K: UnwindSafe,
V: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more