Type Alias rustc_data_structures::snapshot_map::SnapshotMapRef

pub type SnapshotMapRef<'a, K, V, L> = SnapshotMap<K, V, &'a mut FxHashMap<K, V>, &'a mut L>;

Aliased Type

struct SnapshotMapRef<'a, K, V, L> {
    map: &'a mut HashMap<K, V, BuildHasherDefault<FxHasher>>,
    undo_log: &'a mut L,
    _marker: PhantomData<(K, V)>,
}

Fields

map: &'a mut HashMap<K, V, BuildHasherDefault<FxHasher>>

undo_log: &'a mut L

_marker: PhantomData<(K, V)>

Implementations

impl<K, V, M, L> SnapshotMap<K, V, M, L>

pub fn with_log<L2>(&mut self, undo_log: L2) -> SnapshotMap<K, V, &mut M, L2>

impl<K, V, M, L> SnapshotMap<K, V, M, L>where K: Hash + Clone + Eq, M: BorrowMut<FxHashMap<K, V>> + Borrow<FxHashMap<K, V>>, L: UndoLogs<UndoLog<K, V>>,

pub fn clear(&mut self)

pub fn insert(&mut self, key: K, value: V) -> bool

pub fn remove(&mut self, key: K) -> bool

pub fn get(&self, key: &K) -> Option<&V>

Trait Implementations

impl<K: Clone, V: Clone, M: Clone, L: Clone> Clone for SnapshotMap<K, V, M, L>

fn clone(&self) -> SnapshotMap<K, V, M, L>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<K, V, M, L> Default for SnapshotMap<K, V, M, L>where M: Default, L: Default,

fn default() -> Self

Returns the “default value” for a type.

impl<'k, K, V, M, L> Index<&'k K> for SnapshotMap<K, V, M, L>where K: Hash + Clone + Eq, M: Borrow<FxHashMap<K, V>>,

type Output = V

The returned type after indexing.

fn index(&self, key: &'k K) -> &V

Performs the indexing (container[index]) operation.

impl<K, V, M, L> Rollback<UndoLog<K, V>> for SnapshotMap<K, V, M, L>where K: Eq + Hash, M: Rollback<UndoLog<K, V>>,

fn reverse(&mut self, undo: UndoLog<K, V>)

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes