Struct rustc_middle::mir::graph_cyclic_cache::GraphIsCyclicCache[][src]

pub(super) struct GraphIsCyclicCache {
    cache: OnceCell<bool>,
}

Helper type to cache the result of graph::is_cyclic.

Fields

cache: OnceCell<bool>

Implementations

impl GraphIsCyclicCache[src]

pub(super) fn new() -> Self[src]

pub(super) fn is_cyclic<G: ?Sized>(&self, graph: &G) -> bool where
    G: DirectedGraph + WithStartNode + WithSuccessors + WithNumNodes
[src]

pub(super) fn invalidate(&mut self)[src]

Invalidates the cache.

Trait Implementations

impl Clone for GraphIsCyclicCache[src]

impl Debug for GraphIsCyclicCache[src]

impl<D: Decoder> Decodable<D> for GraphIsCyclicCache[src]

impl<S: Encoder> Encodable<S> for GraphIsCyclicCache[src]

impl<CTX> HashStable<CTX> for GraphIsCyclicCache[src]

impl<'tcx> Lift<'tcx> for GraphIsCyclicCache[src]

type Lifted = Self

impl<'tcx> TypeFoldable<'tcx> for GraphIsCyclicCache[src]

Auto Trait Implementations

impl !RefUnwindSafe for GraphIsCyclicCache

impl Send for GraphIsCyclicCache

impl !Sync for GraphIsCyclicCache

impl Unpin for GraphIsCyclicCache

impl UnwindSafe for GraphIsCyclicCache

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<'a, T> Captures<'a> for T where
    T: ?Sized
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impl<Ctxt, T> DepNodeParams<Ctxt> for T where
    T: HashStable<<Ctxt as DepContext>::StableHashingContext> + Debug,
    Ctxt: DepContext
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impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T> MaybeResult<T> for T[src]

type Error = !

impl<'tcx, T> Subst<'tcx> for T where
    T: TypeFoldable<'tcx>, 
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impl<T> ToOwned for T where
    T: Clone
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type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> WithConstness for T[src]