Trait rustc_data_structures::unify::UnificationStore

pub trait UnificationStore: Index<usize, Output = VarValue<Self::Key>> + Clone where
    <Self::Key as UnifyKey>::Value == Self::Value, {
    type Key: UnifyKey;
    type Value: UnifyValue;
    type Snapshot;
    fn new() -> Self;
    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<impl FnMut(u32) -> VarValue>(
        &mut self, 
        value: impl FnMut(u32) -> VarValue
    )
    where
        impl FnMut(u32) -> VarValue: 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 { ... }
}

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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.

Associated Types

type Key: UnifyKey

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type Value: UnifyValue

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type Snapshot

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Required Methods

fn new() -> Self

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

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

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

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

🔬 This is a nightly-only experimental API. (rustc_private)

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fn len(&self) -> usize

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

🔬 This is a nightly-only experimental API. (rustc_private)

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fn reserve(&mut self, num_new_values: usize)

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

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Provided Methods

fn tag() -> &'static str

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Implementors

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

type Key = K

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type Value = <K as UnifyKey>::Value

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type Snapshot = Snapshot

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fn new() -> InPlace<K>

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

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

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

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fn reset_unifications<impl FnMut(u32) -> VarValue>(     &mut self,     value: impl FnMut(u32) -> VarValue ) where     impl FnMut(u32) -> VarValue: FnMut(u32) -> VarValue<<InPlace<K> as UnificationStore>::Key>,

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fn len(&self) -> usize

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fn push(&mut self, value: VarValue<<InPlace<K> as UnificationStore>::Key>)

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fn reserve(&mut self, num_new_values: usize)

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fn update<F>(&mut self, index: usize, op: F) where     F: FnOnce(&mut VarValue<<InPlace<K> as UnificationStore>::Key>),

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fn tag() -> &'static str

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