Struct rustc_data_structures::unify::VarValue

source ·

pub struct VarValue<K>where
    K: UnifyKey,{
    parent: K,
    value: <K as UnifyKey>::Value,
    rank: u32,
}

Expand description

Value of a unification key. We implement Tarjan’s union-find algorithm: when two keys are unified, one of them is converted into a “redirect” pointing at the other. These redirects form a DAG: the roots of the DAG (nodes that are not redirected) are each associated with a value of type V and a rank. The rank is used to keep the DAG relatively balanced, which helps keep the running time of the algorithm under control. For more information, see http://en.wikipedia.org/wiki/Disjoint-set_data_structure.

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§parent: K§value: <K as UnifyKey>::Value§rank: u32

Auto Trait Implementations§

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impl<K> RefUnwindSafe for VarValue<K>where K: RefUnwindSafe, <K as UnifyKey>::Value: RefUnwindSafe,

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impl<K> Send for VarValue<K>where K: Send, <K as UnifyKey>::Value: Send,

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impl<K> Sync for VarValue<K>where K: Sync, <K as UnifyKey>::Value: Sync,

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Struct rustc_data_structures::unify::VarValue

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Auto Trait Implementations§

impl<K> RefUnwindSafe for VarValue<K>where K: RefUnwindSafe, <K as UnifyKey>::Value: RefUnwindSafe,

impl<K> Send for VarValue<K>where K: Send, <K as UnifyKey>::Value: Send,

impl<K> Sync for VarValue<K>where K: Sync, <K as UnifyKey>::Value: Sync,

impl<K> Unpin for VarValue<K>where K: Unpin, <K as UnifyKey>::Value: Unpin,

impl<K> UnwindSafe for VarValue<K>where K: UnwindSafe, <K as UnifyKey>::Value: UnwindSafe,

Blanket Implementations§

impl<T> Aligned for T

const ALIGN: Alignment = const ALIGN: Alignment = Alignment::of::<Self>();

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<'a, T> Captures<'a> for Twhere T: ?Sized,

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