Trait ena::unify::UnificationStore

pub trait UnificationStore: Index<usize, Output = VarValue<<Self as UnificationStore>::Key>> + Clone + Default {
    type Key: UnifyKey<Value = Self::Value>;
    type Value: UnifyValue;
    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 reset_unifications(
        &mut self,
        value: impl FnMut(u32) -> VarValue<Self::Key>
    );
    fn len(&self) -> usize;
    fn push(&mut self, value: VarValue<Self::Key>);
    fn reserve(&mut self, num_new_values: usize);
    fn update<F>(&mut self, index: usize, op: F)
    where
        F: FnOnce(&mut VarValue<Self::Key>);

    fn tag() -> &'static str { ... }
}

Largely internal trait implemented by the unification table backing store types. The most common such type is InPlace, which indicates a standard, mutable unification table.

Required Associated Types

type Key: UnifyKey<Value = Self::Value>

type Value: UnifyValue

type Snapshot

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 reset_unifications(&mut self, value: impl FnMut(u32) -> VarValue<Self::Key>)

fn len(&self) -> usize

fn push(&mut self, value: VarValue<Self::Key>)

fn reserve(&mut self, num_new_values: usize)

fn update<F>(&mut self, index: usize, op: F)where
    F: FnOnce(&mut VarValue<Self::Key>),

Provided Methods

fn tag() -> &'static str

Implementors

impl<K: UnifyKey> UnificationStore for InPlace<K>

type Key = K

type Value = <K as UnifyKey>::Value

type Snapshot = Snapshot