Trait rustc_ap_rustc_data_structures::unify::UnificationStore

pub trait UnificationStore: UnificationStoreMut {
    type Snapshot;
    fn start_snapshot(&mut self) -> Self::Snapshot;
    fn rollback_to(&mut self, snapshot: Self::Snapshot);
    fn commit(&mut self, snapshot: Self::Snapshot);
    fn values_since_snapshot(&self, snapshot: &Self::Snapshot) -> Range<usize>;
}

Associated Types

type Snapshot

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Required methods

fn start_snapshot(&mut self) -> Self::Snapshot

fn rollback_to(&mut self, snapshot: Self::Snapshot)

fn commit(&mut self, snapshot: Self::Snapshot)

fn values_since_snapshot(&self, snapshot: &Self::Snapshot) -> Range<usize>

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Implementors

impl<K, V, L> UnificationStore for InPlace<K, V, L> where
    K: UnifyKey,
    L: Snapshots<UndoLog<Delegate<K>>>,
    V: VecLike<Delegate<K>>, 

type Snapshot = Snapshot<<L as Snapshots<UndoLog<Delegate<K>>>>::Snapshot>

fn start_snapshot(&mut self) -> <InPlace<K, V, L> as UnificationStore>::Snapshot

fn rollback_to(
    &mut self,
    snapshot: <InPlace<K, V, L> as UnificationStore>::Snapshot
)

fn commit(&mut self, snapshot: <InPlace<K, V, L> as UnificationStore>::Snapshot)

fn values_since_snapshot(
    &self,
    snapshot: &<InPlace<K, V, L> as UnificationStore>::Snapshot
) -> Range<usize>

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